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		<title>60-Second Science</title>
		<description>Leading science journalists provide a daily minute commentary on some of the most interesting developments in the world of science. For a full-length, weekly podcast you can subscribe to Science Talk: The Podcast of Scientific American. To view all of our archived podcasts please go to www.scientificamerican.com/podcast</description>
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			<title>60-Second Science</title>
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		<copyright>2013 Scientific American, a division of Nature America, Inc. All Rights Reserved.</copyright>
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		<itunes:subtitle>A daily quick take on science.</itunes:subtitle>
		<itunes:summary>Leading science journalists provide a daily minute commentary on some of the most interesting developments in the world of science. For a full-length, weekly podcast you can subscribe to Science Talk: The Podcast of Scientific American. To view all of our archived podcasts please go to www.scientificamerican.com/podcast</itunes:summary>
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		<itunes:category text="Technology" />
		
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		<itunes:author>Scientific American</itunes:author>
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			<title>Invasive Ladybug Thanks Its Parasite for Competitive Advantage</title>
			<description>Harlequin ladybirds carry a parasite that does not kill them--but does kill other ladybug species that attempt to eat the harlequin progeny. Sophie Bushwick reports</description>
		
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			<pubDate>Fri, 17 May 2013 15:28:08 -0500</pubDate>
			<itunes:subtitle>Invasive Ladybug Thanks Its Parasite for Competitive Advantage</itunes:subtitle>
			<itunes:summary>Harlequin ladybirds carry a parasite that does not kill them--but does kill other ladybug species that attempt to eat the harlequin progeny. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Harlequin ladybird, microsporidia</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Isolated Reservoir Holds Ancient Water</title>
			<description>Isotopic analysis of fluid seeping from an isolated Canadian underground reservoir indicates that the water has been sequestered for at least 1.5 billion years. Sophie Bushwick reports</description>
		
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			<pubDate>Wed, 15 May 2013 23:59:08 -0500</pubDate>
			<itunes:subtitle>Isolated Reservoir Holds Ancient Water</itunes:subtitle>
			<itunes:summary>Isotopic analysis of fluid seeping from an isolated Canadian underground reservoir indicates that the water has been sequestered for at least 1.5 billion years. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:18</itunes:duration>
			<itunes:keywords>Water, extraterrestrial life</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Speed Dating Study Yields Conversation Keys</title>
			<description>A study analyzed nearly 1,000 speed dates and their aftermaths to find out what conversational cues work best for people to click. Amy Kraft reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=6E936632-A3D6-D62C-B7E4DC768D774509&amp;ref=p_itune</link>
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			<pubDate>Tue, 14 May 2013 16:13:08 -0500</pubDate>
			<itunes:subtitle>Speed Dating Study Yields Conversation Keys</itunes:subtitle>
			<itunes:summary>A study analyzed nearly 1,000 speed dates and their aftermaths to find out what conversational cues work best for people to click. Amy Kraft reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Conversational Analysis, speed dating</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
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			<title>Riding Technique Affects Horse Force</title>
			<description>Equestrians who use the bouncy &quot;rising trot&quot; actually keep their center of mass more steady when they stand, which reduces the force on the horse&apos;s back. Karen Hopkin reports</description>
		
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			<pubDate>Mon, 13 May 2013 21:14:08 -0500</pubDate>
			<itunes:subtitle>Riding Technique Affects Horse Force</itunes:subtitle>
			<itunes:summary>Equestrians who use the bouncy &quot;rising trot&quot; actually keep their center of mass more steady when they stand, which reduces the force on the horse&apos;s back. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:21</itunes:duration>
			<itunes:keywords>Horseback riding, jockeys, equestrians</itunes:keywords>
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			<itunes:explicit>no</itunes:explicit>
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			<title>Ice Cores Reveal Green Arctic</title>
			<description>Analyses of sediment cores show that Arctic summers 3.6 million years ago were a good 8 degrees Celsius warmer than they are today, and supported Douglas fir and hemlock. Sophie Bushwick reports</description>
		
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			<pubDate>Fri, 10 May 2013 19:14:08 -0500</pubDate>
			<itunes:subtitle>Ice Cores Reveal Green Arctic</itunes:subtitle>
			<itunes:summary>Analyses of sediment cores show that Arctic summers 3.6 million years ago were a good 8 degrees Celsius warmer than they are today, and supported Douglas fir and hemlock. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Arctic temperatures, ice core analysis</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Elephants Better Beat the Heat--or Else</title>
			<description>With a relatively small surface area to body volume, elephant heat dissipation is limited to the point where extended exertion in the heat can be fatal. Sophie Bushwick reports</description>
		
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			<pubDate>Tue, 7 May 2013 19:37:08 -0500</pubDate>
			<itunes:subtitle>Elephants Better Beat the Heat--or Else</itunes:subtitle>
			<itunes:summary>With a relatively small surface area to body volume, elephant heat dissipation is limited to the point where extended exertion in the heat can be fatal. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:25</itunes:duration>
			<itunes:keywords></itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Science Tackles Twitter Talents</title>
			<description>Researchers offer tips to racking up Twitter followers, based on an analysis of over 500 active tweeters and their half million tweets during a 15-month stretch. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=DBB88BDA-D6E6-5695-E783456742FAE8D3&amp;ref=p_itune</link>
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			<pubDate>Mon, 6 May 2013 20:28:08 -0500</pubDate>
			<itunes:subtitle>Science Tackles Twitter Talents</itunes:subtitle>
			<itunes:summary>Researchers offer tips to racking up Twitter followers, based on an analysis of over 500 active tweeters and their half million tweets during a 15-month stretch. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Twitter, social networks</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Video Game Play Sharpens Elderly Minds</title>
			<description>Elderly people who played a video game that challenged their brain processing speed showed improvements in executive function compared with those who did crossword puzzles. Amy Kraft reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=37C4CB3A-01E3-0B87-5D60E859839B8B2A&amp;ref=p_itune</link>
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			<pubDate>Fri, 3 May 2013 16:03:08 -0500</pubDate>
			<itunes:subtitle>Video Game Play Sharpens Elderly Minds</itunes:subtitle>
			<itunes:summary>Elderly people who played a video game that challenged their brain processing speed showed improvements in executive function compared with those who did crossword puzzles. Amy Kraft reports</itunes:summary>
			<itunes:duration>00:01:18</itunes:duration>
			<itunes:keywords>Video games, cognitive decline, brain protection, executive function</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Gap Grows between Wanting and Working</title>
			<description>Compared with kids who graduated high school the 1970s, Millennial teens are more interested in material signs of success and less concerned with working to get them. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=03C8C62E-F76E-6EA7-679906AB906FCC44&amp;ref=p_itune</link>
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			<pubDate>Thu, 2 May 2013 15:50:08 -0500</pubDate>
			<itunes:subtitle>Gap Grows between Wanting and Working</itunes:subtitle>
			<itunes:summary>Compared with kids who graduated high school the 1970s, Millennial teens are more interested in material signs of success and less concerned with working to get them. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:26</itunes:duration>
			<itunes:keywords>Materialism, social psychology</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Voices Considered Attractive Send Body Cues</title>
			<description>Volunteer listeners expressed preferences for voice qualities that ordinarily correlate with specific body dimensions. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=98DEAAA3-9FF0-31D7-B530C46D7CBBC989&amp;ref=p_itune</link>
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			<pubDate>Tue, 30 Apr 2013 14:00:08 -0500</pubDate>
			<itunes:subtitle>Voices Considered Attractive Send Body Cues</itunes:subtitle>
			<itunes:summary>Volunteer listeners expressed preferences for voice qualities that ordinarily correlate with specific body dimensions. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:28</itunes:duration>
			<itunes:keywords>Attraction, vocalization</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Smartphone App System Locates Snipers</title>
			<description>A small network of smartphones can analyze rifle shot shockwaves, enabling users to locate the source of the shots. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=7F99EE3B-B5D2-163B-F3189F9172E3E7FE&amp;ref=p_itune</link>
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			<pubDate>Mon, 29 Apr 2013 23:59:08 -0500</pubDate>
			<itunes:subtitle>Smartphone App System Locates Snipers</itunes:subtitle>
			<itunes:summary>A small network of smartphones can analyze rifle shot shockwaves, enabling users to locate the source of the shots. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Acoustic information processing, sniper defense</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Whales Teach One Another Hunting Skill</title>
			<description>Cultural transmission is behind the recent spread of a hunting technique called &quot;lobtail&quot; feeding among humpback whales off New England. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=9827ED4B-9A2F-EC6C-8BD82F69F2D8EC96&amp;ref=p_itune</link>
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			<pubDate>Thu, 25 Apr 2013 14:22:08 -0500</pubDate>
			<itunes:subtitle>Whales Teach One Another Hunting Skill</itunes:subtitle>
			<itunes:summary>Cultural transmission is behind the recent spread of a hunting technique called &quot;lobtail&quot; feeding among humpback whales off New England. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Cultural transmission, lobtail feeding, humpback whales</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Human Hearts Bleed for Abused Robots</title>
			<description>People watching a robot being beaten felt similar emotions as when they watched a human apparently being abused. Sophie Bushwick reports</description>
		
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			<pubDate>Wed, 24 Apr 2013 19:17:08 -0500</pubDate>
			<itunes:subtitle>Human Hearts Bleed for Abused Robots</itunes:subtitle>
			<itunes:summary>People watching a robot being beaten felt similar emotions as when they watched a human apparently being abused. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Empathy, robotics</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Poker Players&apos; Arms Give Away Their Hands</title>
			<description>Volunteers who watched video of pro poker players could discern the quality of the cards in play by how the players moved their arms when adding chips to the pot. Steve Mirsky reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=0D7D9D84-0BC1-B6D1-BFC9705E40F0F550&amp;ref=p_itune</link>
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			<pubDate>Mon, 22 Apr 2013 21:43:08 -0500</pubDate>
			<itunes:subtitle>Poker Players&apos; Arms Give Away Their Hands</itunes:subtitle>
			<itunes:summary>Volunteers who watched video of pro poker players could discern the quality of the cards in play by how the players moved their arms when adding chips to the pot. Steve Mirsky reports</itunes:summary>
			<itunes:duration>00:01:17</itunes:duration>
			<itunes:keywords>Gambling, poker tells</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Grasshoppers Adjust Calls in Traffic Din</title>
			<description>Compared with males that lived someplace quiet, roadside-dwelling grasshoppers selectively boosted the bass notes in their mating calls to be heard above traffic noise. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=2C611734-0B87-4F6E-59DF0F8D3EB1F008&amp;ref=p_itune</link>
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			<pubDate>Thu, 18 Apr 2013 12:52:08 -0500</pubDate>
			<itunes:subtitle>Grasshoppers Adjust Calls in Traffic Din</itunes:subtitle>
			<itunes:summary>Compared with males that lived someplace quiet, roadside-dwelling grasshoppers selectively boosted the bass notes in their mating calls to be heard above traffic noise. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:17</itunes:duration>
			<itunes:keywords>Grasshoppers, animal calls, environmentally induced behavior changes</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Bitter Taste May Battle Asthma</title>
			<description>Bitter substances block calcium channels, which can relax the tissue that tightens up during asthma attacks. Sophie Bushwick reports</description>
		
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			<pubDate>Wed, 17 Apr 2013 22:05:08 -0500</pubDate>
			<itunes:subtitle>Bitter Taste May Battle Asthma</itunes:subtitle>
			<itunes:summary>Bitter substances block calcium channels, which can relax the tissue that tightens up during asthma attacks. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Asthma, calcium channels, bitter taste</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Fly Cells Divide by the Clock</title>
			<description>Circadian rhythms may influence the timing of cell division, which could inform the timing of some therapies. Christopher Intagliata reports</description>
		
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			<pubDate>Tue, 16 Apr 2013 23:10:08 -0500</pubDate>
			<itunes:subtitle>Fly Cells Divide by the Clock</itunes:subtitle>
			<itunes:summary>Circadian rhythms may influence the timing of cell division, which could inform the timing of some therapies. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Circadian rhythms, healing, mitosis</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>New Music Tickles or Bores Brain Region</title>
			<description>Listeners&apos; reactions to new music were associated with activity in the nucleus accumbens, a section of the brain&apos;s pleasure center. Sophie Bushwick reports</description>
		
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			<pubDate>Mon, 15 Apr 2013 07:30:08 -0500</pubDate>
			<itunes:subtitle>New Music Tickles or Bores Brain Region</itunes:subtitle>
			<itunes:summary>Listeners&apos; reactions to new music were associated with activity in the nucleus accumbens, a section of the brain&apos;s pleasure center. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:26</itunes:duration>
			<itunes:keywords>Music appreciation, nucleus accumbens</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Ecotourism Can Be Animals&apos; Pet Peeve</title>
			<description>Stingrays that interact with humans at an interactive tourism area change their normal activity patterns and interact with each other more aggressively than animals not dealing with people. Amy Kraft reports</description>
		
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			<pubDate>Fri, 12 Apr 2013 14:47:08 -0500</pubDate>
			<itunes:subtitle>Ecotourism Can Be Animals&apos; Pet Peeve</itunes:subtitle>
			<itunes:summary>Stingrays that interact with humans at an interactive tourism area change their normal activity patterns and interact with each other more aggressively than animals not dealing with people. Amy Kraft reports</itunes:summary>
			<itunes:duration>00:01:17</itunes:duration>
			<itunes:keywords>Stingrays, ecotourism, interactive tourism</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Twitter Reveals Language Geographic Distribution</title>
			<description>Location-tagged tweets enabled researchers to calculate the dominant language of any given region, down to neighborhoods in New York City. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=D2A43469-A097-6B56-491168E7CC3360A8&amp;ref=p_itune</link>
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			<pubDate>Thu, 11 Apr 2013 19:42:08 -0500</pubDate>
			<itunes:subtitle>Twitter Reveals Language Geographic Distribution</itunes:subtitle>
			<itunes:summary>Location-tagged tweets enabled researchers to calculate the dominant language of any given region, down to neighborhoods in New York City. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Twitter, language geography</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Bed Bugs Bollixed by Bean</title>
			<description>The tiny protuberences on the leaves of the kidney bean plant ensnare the feet of bed bugs, trapping them in place. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=8C046638-C68E-0F95-2CD0DB691F353CE2&amp;ref=p_itune</link>
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			<pubDate>Wed, 10 Apr 2013 10:48:08 -0500</pubDate>
			<itunes:subtitle>Bed Bugs Bollixed by Bean</itunes:subtitle>
			<itunes:summary>The tiny protuberences on the leaves of the kidney bean plant ensnare the feet of bed bugs, trapping them in place. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:24</itunes:duration>
			<itunes:keywords>Bed bugs, biomimetic surfaces</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Warming Planet Means Bumpier Flights</title>
			<description>Climate models and turbulence algorithms forecast that, by mid-century, clear-air turbulence will be more violent and transatlantic flights will hit it twice as often. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=24307332-DCDE-1E50-AAEE54F5C32180E6&amp;ref=p_itune</link>
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			<pubDate>Mon, 8 Apr 2013 10:25:08 -0500</pubDate>
			<itunes:subtitle>Warming Planet Means Bumpier Flights</itunes:subtitle>
			<itunes:summary>Climate models and turbulence algorithms forecast that, by mid-century, clear-air turbulence will be more violent and transatlantic flights will hit it twice as often. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:21</itunes:duration>
			<itunes:keywords>Clear air turbulence, climate change</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Fat-Fed Fidos Foil Fiends First</title>
			<description>Detection dogs fed diets high in fat were better at sniffing out explosives and contraband than dogs given their regular food. Amy Kraft reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=9627F09B-D3AC-F775-CEE3085559602DF0&amp;ref=p_itune</link>
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			<pubDate>Fri, 5 Apr 2013 16:15:08 -0500</pubDate>
			<itunes:subtitle>Fat-Fed Fidos Foil Fiends First</itunes:subtitle>
			<itunes:summary>Detection dogs fed diets high in fat were better at sniffing out explosives and contraband than dogs given their regular food. Amy Kraft reports</itunes:summary>
			<itunes:duration>00:00:00</itunes:duration>
			<itunes:keywords>Detection dogs, explosive-smelling dogs</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Biological Disciplines Meet to Break, Then Maybe Fix, Bread</title>
			<description>At a conference April 9th to 11th, conservation biologists and synthetic biologists will try to find common ground. Steve Mirsky reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=FB3983B1-FCD4-4C43-F9EBF605FFA44642&amp;ref=p_itune</link>
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			<pubDate>Tue, 2 Apr 2013 16:57:08 -0500</pubDate>
			<itunes:subtitle>Biological Disciplines Meet to Break, Then Maybe Fix, Bread</itunes:subtitle>
			<itunes:summary>At a conference April 9th to 11th, conservation biologists and synthetic biologists will try to find common ground. Steve Mirsky reports</itunes:summary>
			<itunes:duration>00:01:36</itunes:duration>
			<itunes:keywords>Synthetic biology, conservation biology, Kent Redford</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>The Price Is Right, but Confusing</title>
			<description>Uniform pricing accentuates products&apos; differences, which makes it harder to choose among them. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=CFDEA4AE-AC37-5421-F8823E93E66DB03E&amp;ref=p_itune</link>
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			<pubDate>Mon, 1 Apr 2013 19:50:08 -0500</pubDate>
			<itunes:subtitle>The Price Is Right, but Confusing</itunes:subtitle>
			<itunes:summary>Uniform pricing accentuates products&apos; differences, which makes it harder to choose among them. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Consumer psychology, pricing</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Mysterious Desert &quot;Fairy Circles&quot; Caused by Termites</title>
			<description>The Namib Desert&apos;s strange circular patches of grass with bare centers are the result of termites establishing reservoirs. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=F65C00A4-09A2-0BCD-BDFBD7ECB52FDE36&amp;ref=p_itune</link>
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			<pubDate>Thu, 28 Mar 2013 14:27:08 -0500</pubDate>
			<itunes:subtitle>Mysterious Desert &quot;Fairy Circles&quot; Caused by Termites</itunes:subtitle>
			<itunes:summary>The Namib Desert&apos;s strange circular patches of grass with bare centers are the result of termites establishing reservoirs. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Psammotermes allocerus, fairy circles</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Physicists Model Mosh Moves</title>
			<description>Metal-loving researchers analyzed the collective movement of individuals in mosh pits, which could help explain mass movements in other extreme situations. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=D05AEAFA-0933-F9C1-075E61431E2F30DD&amp;ref=p_itune</link>
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			<pubDate>Wed, 27 Mar 2013 20:44:08 -0500</pubDate>
			<itunes:subtitle>Physicists Model Mosh Moves</itunes:subtitle>
			<itunes:summary>Metal-loving researchers analyzed the collective movement of individuals in mosh pits, which could help explain mass movements in other extreme situations. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:23</itunes:duration>
			<itunes:keywords>Mosh pits, vortex pattern, circle pit</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Gum Chewing May Improve Concentration</title>
			<description>Volunteers who chewed gum during an exercise focused and remembered number sequences better than non-gum chewers. Amy Kraft reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=9AF6D642-B1E3-9CAC-55676E0F924FE01B&amp;ref=p_itune</link>
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			<pubDate>Tue, 26 Mar 2013 19:51:08 -0500</pubDate>
			<itunes:subtitle>Gum Chewing May Improve Concentration</itunes:subtitle>
			<itunes:summary>Volunteers who chewed gum during an exercise focused and remembered number sequences better than non-gum chewers. Amy Kraft reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Gum, concentration, memory</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Internal Clocks Tell Roosters It&apos;s Crow Time</title>
			<description>Circadian rhythms tell fowl to crow at dawn, even if the birds can&apos;t see the sun come up. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=5CDD661A-A202-5634-FC904E9560C4846D&amp;ref=p_itune</link>
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			<pubDate>Mon, 25 Mar 2013 14:54:08 -0500</pubDate>
			<itunes:subtitle>Internal Clocks Tell Roosters It&apos;s Crow Time</itunes:subtitle>
			<itunes:summary>Circadian rhythms tell fowl to crow at dawn, even if the birds can&apos;t see the sun come up. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Rooster, circadian rhythm</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Thinkers Talk about Nothing</title>
			<description>The subject was nothing at the Isaac Asimov Memorial Debate at the American Museum of Natural History in New York City. Steve Mirsky reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=8BE8DA41-C868-C379-E23DD19D143374FB&amp;ref=p_itune</link>
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			<pubDate>Thu, 21 Mar 2013 13:33:08 -0500</pubDate>
			<itunes:subtitle>Thinkers Talk about Nothing</itunes:subtitle>
			<itunes:summary>The subject was nothing at the Isaac Asimov Memorial Debate at the American Museum of Natural History in New York City. Steve Mirsky reports</itunes:summary>
			<itunes:duration>00:02:24</itunes:duration>
			<itunes:keywords>Nothing, Existence, Lawrence Krauss, Cosmology</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Olive Oil Fills Better Than Other Fats</title>
			<description>Trial subjects who ate olive oil versus other kinds of fats felt fuller and had higher blood levels of serotonin. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=57D72A32-E987-6867-273369E28DAF406F&amp;ref=p_itune</link>
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			<pubDate>Wed, 20 Mar 2013 13:16:08 -0500</pubDate>
			<itunes:subtitle>Olive Oil Fills Better Than Other Fats</itunes:subtitle>
			<itunes:summary>Trial subjects who ate olive oil versus other kinds of fats felt fuller and had higher blood levels of serotonin. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Olive oil, fat, satiety</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Noisy Ships Creep Out Crabs</title>
			<description>The cacophony of ships at sea is stressing shore crabs and could be bothering other marine life. Amy Kraft reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=556FCBC0-B883-BE8C-E74AA04EE9B5CA14&amp;ref=p_itune</link>
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			<pubDate>Tue, 19 Mar 2013 23:59:08 -0500</pubDate>
			<itunes:subtitle>Noisy Ships Creep Out Crabs</itunes:subtitle>
			<itunes:summary>The cacophony of ships at sea is stressing shore crabs and could be bothering other marine life. Amy Kraft reports</itunes:summary>
			<itunes:duration>00:01:20</itunes:duration>
			<itunes:keywords>Shipping noise, noise pollution, Carcinus maenas</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Caimin In, the Water&apos;s Fine</title>
			<description>Fossil caiman skulls found in Panama raise questions about the distance between South and Central America at the beginning of the Miocene epoch. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=1C2152A4-D21A-E000-1B1A7BF89144AB5C&amp;ref=p_itune</link>
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			<pubDate>Wed, 13 Mar 2013 23:59:08 -0500</pubDate>
			<itunes:subtitle>Caimin In, the Water&apos;s Fine</itunes:subtitle>
			<itunes:summary>Fossil caiman skulls found in Panama raise questions about the distance between South and Central America at the beginning of the Miocene epoch. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Caimans, biogeography</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Winter Cholesterol Rise May Boost Heart Risk</title>
			<description>Cholesterol levels go up in winter even in sunny climes, perhaps due to less exercise and dietary changes. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=E18CEE7D-0124-A28E-85D81ABD0EB6DDA7&amp;ref=p_itune</link>
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			<pubDate>Tue, 12 Mar 2013 23:59:08 -0500</pubDate>
			<itunes:subtitle>Winter Cholesterol Rise May Boost Heart Risk</itunes:subtitle>
			<itunes:summary>Cholesterol levels go up in winter even in sunny climes, perhaps due to less exercise and dietary changes. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Cholesterol, heart attack</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Workplace Injuries May Rise Right after Daylight Saving Time</title>
			<description>The Monday after the change to daylight saving time is marked by an increase in work-related injuries, probably due to lack of z&apos;s. Steve Mirsky reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=F5746D6F-C11A-45AB-5737FE44BB701680&amp;ref=p_itune</link>
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			<pubDate>Fri, 8 Mar 2013 15:52:08 -0500</pubDate>
			<itunes:subtitle>Workplace Injuries May Rise Right after Daylight Saving Time</itunes:subtitle>
			<itunes:summary>The Monday after the change to daylight saving time is marked by an increase in work-related injuries, probably due to lack of z&apos;s. Steve Mirsky reports</itunes:summary>
			<itunes:duration>00:01:38</itunes:duration>
			<itunes:keywords>Daylight Saving Time, time change, public safety</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Birds Need Tune to Stay Current</title>
			<description>Savanna sparrows that kept up with the changes in their species&apos;s calls over the years had higher rates of reproductive success than the birds who sang the same old song. Amy Kraft reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=96021F62-C36C-60BD-D888499BD593A05D&amp;ref=p_itune</link>
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			<pubDate>Wed, 6 Mar 2013 19:19:08 -0500</pubDate>
			<itunes:subtitle>Birds Need Tune to Stay Current</itunes:subtitle>
			<itunes:summary>Savanna sparrows that kept up with the changes in their species&apos;s calls over the years had higher rates of reproductive success than the birds who sang the same old song. Amy Kraft reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Passerculus sandwichiensis, Savanna sparrow</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>New Moms May Need New Shoes</title>
			<description>A study of 49 women bears out a common observation: pregnancy can lengthen and widen a woman&apos;s feet. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=5356A232-C057-5BB3-D7CDE867ACD962B4&amp;ref=p_itune</link>
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			<pubDate>Tue, 5 Mar 2013 12:15:08 -0500</pubDate>
			<itunes:subtitle>New Moms May Need New Shoes</itunes:subtitle>
			<itunes:summary>A study of 49 women bears out a common observation: pregnancy can lengthen and widen a woman&apos;s feet. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Pregnancy, feet, relaxin</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Cold-Comfortable Mice Point to New Analgesics</title>
			<description>Genetically engineered mice that can&apos;t feel cold are a step toward drugs that dull pain without numbness. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=3423951A-C37B-1729-6669F82A6B0DB6CB&amp;ref=p_itune</link>
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			<pubDate>Mon, 4 Mar 2013 21:45:08 -0500</pubDate>
			<itunes:subtitle>Cold-Comfortable Mice Point to New Analgesics</itunes:subtitle>
			<itunes:summary>Genetically engineered mice that can&apos;t feel cold are a step toward drugs that dull pain without numbness. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Analgesia, TRPM8, perception</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Sourdough Bacteria Pump Out Mold Killers</title>
			<description>The sourdough bread bacteria &lt;i&gt;Lactobacillus hammesii&lt;/i&gt; produces antifungal compounds as it digests bread flour. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=2E07AD07-AAEA-604D-157574761BB21ECE&amp;ref=p_itune</link>
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			<pubDate>Wed, 27 Feb 2013 19:35:08 -0500</pubDate>
			<itunes:subtitle>Sourdough Bacteria Pump Out Mold Killers</itunes:subtitle>
			<itunes:summary>The sourdough bread bacteria  Lactobacillus hammesii  produces antifungal compounds as it digests bread flour. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Sourdough bread, Lactobacillus sanfranciscensis, Lactobacillus hammesii</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Corn&apos;s Influence on Culture Bumped Farther Back</title>
			<description>New data show that maize was a staple in Peru as early as 5,000 years ago and probably helped fuel the cultural leap during what&apos;s called the late Archaic period. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=FF068DC9-E3C2-C68C-A303D70FE195CBDB&amp;ref=p_itune</link>
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			<pubDate>Tue, 26 Feb 2013 21:41:08 -0500</pubDate>
			<itunes:subtitle>Corn&apos;s Influence on Culture Bumped Farther Back</itunes:subtitle>
			<itunes:summary>New data show that maize was a staple in Peru as early as 5,000 years ago and probably helped fuel the cultural leap during what&apos;s called the late Archaic period. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Maize, late Archaic Period</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Nathan Myhrvold Shares Cooking-Science Tips</title>
			<description>The former chief technology officer at Microsoft, co-founder of Intellectual Ventures and co-author of &lt;i&gt;Modernist Cuisine&lt;/i&gt; talks simple tips for making cooking for scientific. Steve Mirsky reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=8FF245F3-E96E-69AB-D395018BAA41DA3C&amp;ref=p_itune</link>
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			<pubDate>Mon, 25 Feb 2013 05:00:08 -0500</pubDate>
			<itunes:subtitle>Nathan Myhrvold Shares Cooking-Science Tips</itunes:subtitle>
			<itunes:summary>The former chief technology officer at Microsoft, co-founder of Intellectual Ventures and co-author of  Modernist Cuisine  talks simple tips for making cooking for scientific. Steve Mirsky reports</itunes:summary>
			<itunes:duration>00:01:36</itunes:duration>
			<itunes:keywords>Nathan Myhrvold, Modernist Cuisine, Sous Vide</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Astronaut Talks about Being in Untethered Hot Spot</title>
			<description>Michael Barratt, who spent 199 days on the ISS, told kids at the annual meeting of the AAAS how a spacewalker whose line snaps can still get back to the station. Steve Mirsky reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=2D6335C0-E29C-F4EB-10DD3A32F632CE5F&amp;ref=p_itune</link>
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			<pubDate>Fri, 22 Feb 2013 19:57:08 -0500</pubDate>
			<itunes:subtitle>Astronaut Talks about Being in Untethered Hot Spot</itunes:subtitle>
			<itunes:summary>Michael Barratt, who spent 199 days on the ISS, told kids at the annual meeting of the AAAS how a spacewalker whose line snaps can still get back to the station. Steve Mirsky reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Michael Barratt, ISS</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Human Skin Depigmented More Than Once</title>
			<description>Human skin became more pigmented in response to high UV and less pigmented later--on independent occasions--in response to less. Steve Mirsky reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=EA8305B6-C9DC-D74C-D209F35A77B5E19F&amp;ref=p_itune</link>
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			<pubDate>Thu, 21 Feb 2013 12:48:08 -0500</pubDate>
			<itunes:subtitle>Human Skin Depigmented More Than Once</itunes:subtitle>
			<itunes:summary>Human skin became more pigmented in response to high UV and less pigmented later--on independent occasions--in response to less. Steve Mirsky reports</itunes:summary>
			<itunes:duration>00:02:05</itunes:duration>
			<itunes:keywords>Skin pigmentation, Nina Jablonski</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Warmer Waters Make Weaker Mussels</title>
			<description>New research shows that mussels&apos; attachment fibers weaken in warm water. As climate change raises ocean temperatures, these shellfish may be forced to cooler waters. Calla Cofield reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=BEBC6C88-B8B2-5E32-46430CBFBA4F9A75&amp;ref=p_itune</link>
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			<pubDate>Wed, 20 Feb 2013 16:25:08 -0500</pubDate>
			<itunes:subtitle>Warmer Waters Make Weaker Mussels</itunes:subtitle>
			<itunes:summary>New research shows that mussels&apos; attachment fibers weaken in warm water. As climate change raises ocean temperatures, these shellfish may be forced to cooler waters. Calla Cofield reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Mussels, ocean temperatures, climate change</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Third Molars Illustrate Differential Reproduction</title>
			<description>Physical anthropologist Alan Mann talked about third molars as a case study in human evolution at the annual meeting of the American Association for the Advancement of Science in Boston</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=4B414F03-9326-6B44-C29E791CD88C83EC&amp;ref=p_itune</link>
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			<pubDate>Mon, 18 Feb 2013 10:35:08 -0500</pubDate>
			<itunes:subtitle>Third Molars Illustrate Differential Reproduction</itunes:subtitle>
			<itunes:summary>Physical anthropologist Alan Mann talked about third molars as a case study in human evolution at the annual meeting of the American Association for the Advancement of Science in Boston</itunes:summary>
			<itunes:duration>00:01:50</itunes:duration>
			<itunes:keywords>Third molar, Alan Mann, differential reproduction</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Earth-Like World May Be Just 13 Light-Years Away</title>
			<description>Researchers estimate that 6 percent of red dwarf stars may be orbited by Earth-like planets, including a candidate 13 light-years off. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=7498EB9F-BEA0-9AD6-F006EA26C87575A8&amp;ref=p_itune</link>
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			<pubDate>Fri, 15 Feb 2013 06:00:08 -0500</pubDate>
			<itunes:subtitle>Earth-Like World May Be Just 13 Light-Years Away</itunes:subtitle>
			<itunes:summary>Researchers estimate that 6 percent of red dwarf stars may be orbited by Earth-like planets, including a candidate 13 light-years off. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Exoplanets, earthlike planets, red dwarves</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Hanging with Smarties Ups GPA</title>
			<description>High-school students whose friends get higher marks tend to raise their own grade-point averages over time. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=73707587-096C-59AB-F1D258079E8C5360&amp;ref=p_itune</link>
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			<pubDate>Thu, 14 Feb 2013 06:00:08 -0500</pubDate>
			<itunes:subtitle>Hanging with Smarties Ups GPA</itunes:subtitle>
			<itunes:summary>High-school students whose friends get higher marks tend to raise their own grade-point averages over time. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Academic achievement, social networks</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Too Much Salt Gets Bitter and Sour Involved</title>
			<description>Overly salted food activates the taste cells that sense sourness and bitterness, sending unpleasant signals to the brain. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=5787EE26-EC41-5513-E4F346EED4CBD0D1&amp;ref=p_itune</link>
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			<pubDate>Wed, 13 Feb 2013 17:00:08 -0500</pubDate>
			<itunes:subtitle>Too Much Salt Gets Bitter and Sour Involved</itunes:subtitle>
			<itunes:summary>Overly salted food activates the taste cells that sense sourness and bitterness, sending unpleasant signals to the brain. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Salt, flavor, sour, bitter, taste</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Bioexplorers Find Tongue&apos;s Taste Bud Factory</title>
			<description>By looking for markers associated with other stem cells, scientists have identified the parental cells that give rise the cells that carry our receptors for taste. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=192CDB91-DBE2-8398-BA0A1008612E88FB&amp;ref=p_itune</link>
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			<pubDate>Tue, 12 Feb 2013 11:55:08 -0500</pubDate>
			<itunes:subtitle>Bioexplorers Find Tongue&apos;s Taste Bud Factory</itunes:subtitle>
			<itunes:summary>By looking for markers associated with other stem cells, scientists have identified the parental cells that give rise the cells that carry our receptors for taste. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Stem cell, taste bud</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>New Antidote Puts Muscle into Cyanide Defense</title>
			<description>Sulfanegen TEA is an intramuscular cyanide antidote, which could be employed in mass poisoning cases with more alacrity than existing IV antidotes. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=61160744-9F5A-1D60-D446CB122E1673F7&amp;ref=p_itune</link>
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			<pubDate>Fri, 8 Feb 2013 22:10:08 -0500</pubDate>
			<itunes:subtitle>New Antidote Puts Muscle into Cyanide Defense</itunes:subtitle>
			<itunes:summary>Sulfanegen TEA is an intramuscular cyanide antidote, which could be employed in mass poisoning cases with more alacrity than existing IV antidotes. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Sulfanegen TEA, cyanide, bioterror</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Ant Pupae Signal Status with Sound</title>
			<description>Developing ants cannot yet waft pheromones, but have been discovered to be able to produce distinctive calls to claim their social status within the colony. Marissa Fessenden reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=20B99B8C-C592-72A1-E1270DF43E034001&amp;ref=p_itune</link>
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			<pubDate>Thu, 7 Feb 2013 16:13:08 -0500</pubDate>
			<itunes:subtitle>Ant Pupae Signal Status with Sound</itunes:subtitle>
			<itunes:summary>Developing ants cannot yet waft pheromones, but have been discovered to be able to produce distinctive calls to claim their social status within the colony. Marissa Fessenden reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Insect communication, ant pupae</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Organic Gases Help Cloud Formation</title>
			<description>Organic gases gases coat aerosolized particles in the atmosphere, enhancing their potential to form cloud droplets. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=EBA06EFF-C01C-3128-D2D15E10EFE79A2A&amp;ref=p_itune</link>
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			<pubDate>Wed, 6 Feb 2013 15:23:08 -0500</pubDate>
			<itunes:subtitle>Organic Gases Help Cloud Formation</itunes:subtitle>
			<itunes:summary>Organic gases gases coat aerosolized particles in the atmosphere, enhancing their potential to form cloud droplets. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Clouds, cloud formation</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Virtual Superpower Experience Increases Helpful Attitude</title>
			<description>Test subjects who could fly like Superman through a virtual reality simulator were more likely to help somebody after the flight. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=C8CC2A44-E1B8-F75C-6CCEDB653AAF5BF3&amp;ref=p_itune</link>
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			<pubDate>Tue, 5 Feb 2013 23:09:08 -0500</pubDate>
			<itunes:subtitle>Virtual Superpower Experience Increases Helpful Attitude</itunes:subtitle>
			<itunes:summary>Test subjects who could fly like Superman through a virtual reality simulator were more likely to help somebody after the flight. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:25</itunes:duration>
			<itunes:keywords>Altruism, behavior</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Good Grammar Makes Bad Password</title>
			<description>A grammatically correct textual password is easier for algorithms to crack than one that with bad grammar. Christopher Intagliata reports</description>
		
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			<pubDate>Mon, 4 Feb 2013 06:00:08 -0500</pubDate>
			<itunes:subtitle>Good Grammar Makes Bad Password</itunes:subtitle>
			<itunes:summary>A grammatically correct textual password is easier for algorithms to crack than one that with bad grammar. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:17</itunes:duration>
			<itunes:keywords>Computer security, password</itunes:keywords>
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			<itunes:explicit>no</itunes:explicit>
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			<title>Killer Kitties Wreak Critter Havoc</title>
			<description>Cats kill some up to 3.7 billion birds and 20.7 billion small mammals in the U.S. each year. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=FD321012-057D-1C3D-45CE143D47930943&amp;ref=p_itune</link>
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			<pubDate>Fri, 1 Feb 2013 23:59:08 -0500</pubDate>
			<itunes:subtitle>Killer Kitties Wreak Critter Havoc</itunes:subtitle>
			<itunes:summary>Cats kill some up to 3.7 billion birds and 20.7 billion small mammals in the U.S. each year. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:14</itunes:duration>
			<itunes:keywords>Domestic cats, ecosystem damage, invasive species</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Dog Evolution Included Getting the Starch in</title>
			<description>A comparison of the dog and wolf genomes finds that dogs have genetic changes that allow them to digest starches, which might have eased their way to becoming man&apos;s best friend. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=BFAF155C-F5C4-FEFA-140D26E53F36A90B&amp;ref=p_itune</link>
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			<pubDate>Thu, 31 Jan 2013 19:37:08 -0500</pubDate>
			<itunes:subtitle>Dog Evolution Included Getting the Starch in</itunes:subtitle>
			<itunes:summary>A comparison of the dog and wolf genomes finds that dogs have genetic changes that allow them to digest starches, which might have eased their way to becoming man&apos;s best friend. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:26</itunes:duration>
			<itunes:keywords>Dog evolution, domestication, wolf genome</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Crustacean Brain May Process Pain</title>
			<description>Crabs&apos; ability to remember a shock and avoid it is consistent with the ability to feel and remember pain, rather than being a simple reflex. Gretchen Cuda Kroen reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=59F7693F-EBA4-7D41-F5F918728B21EDFC&amp;ref=p_itune</link>
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			<itunes:subtitle>Crustacean Brain May Process Pain</itunes:subtitle>
			<itunes:summary>Crabs&apos; ability to remember a shock and avoid it is consistent with the ability to feel and remember pain, rather than being a simple reflex. Gretchen Cuda Kroen reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Pain, crustaceans</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Syringe Design Change Could Cut HIV Transmission</title>
			<description>HIV transmission due to needle sharing could be greatly reduced by changing syringe design to ensure less trapped blood. Gretchen Cuda Kroen reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=2DB55C70-C49A-BAE1-E8CF21DD267C3266&amp;ref=p_itune</link>
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			<itunes:subtitle>Syringe Design Change Could Cut HIV Transmission</itunes:subtitle>
			<itunes:summary>HIV transmission due to needle sharing could be greatly reduced by changing syringe design to ensure less trapped blood. Gretchen Cuda Kroen reports</itunes:summary>
			<itunes:duration>00:01:17</itunes:duration>
			<itunes:keywords>IV Drug Use, Syringe design, dead space</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Researchers A-C-T on DNA Storage</title>
			<description>Using a technique with multiple accuracy checks, researchers have stored large amounts of digital information on tiny volumes of synthetic DNA. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=6F4982D7-E7FF-BEC8-0B2EF9320513B54A&amp;ref=p_itune</link>
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			<itunes:subtitle>Researchers A-C-T on DNA Storage</itunes:subtitle>
			<itunes:summary>Using a technique with multiple accuracy checks, researchers have stored large amounts of digital information on tiny volumes of synthetic DNA. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>DNA Storage, information storage</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Dung Beetles Use Milky Way to Guide Movement (Heh)</title>
			<description>On moonless nights, dung beetles apparently use the Milky Way&apos;s band of light as a navigation guide. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=474B68AD-03FB-6B6B-660913EFEF216C0F&amp;ref=p_itune</link>
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			<itunes:subtitle>Dung Beetles Use Milky Way to Guide Movement (Heh)</itunes:subtitle>
			<itunes:summary>On moonless nights, dung beetles apparently use the Milky Way&apos;s band of light as a navigation guide. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Dung Beetles, animal navigation</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Genome Donators Can Be Sleuthed Out</title>
			<description>Using publicly available information, researchers found they could figure out the identities of 50 individuals who had loaned their genes to science. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=17DBBF61-CDA2-1B78-7C27E7C92CA2F98A&amp;ref=p_itune</link>
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			<pubDate>Wed, 23 Jan 2013 14:05:08 -0500</pubDate>
			<itunes:subtitle>Genome Donators Can Be Sleuthed Out</itunes:subtitle>
			<itunes:summary>Using publicly available information, researchers found they could figure out the identities of 50 individuals who had loaned their genes to science. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Human genome, privacy</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Take 2 and Call Me after 19 Centuries</title>
			<description>An analysis of pills recovered from a shipwreck off the coast of Italy reveals them to contain zinc compounds that were probably used as eye medication. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=BABAF02B-D584-6349-564027FB92FD7819&amp;ref=p_itune</link>
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			<pubDate>Wed, 16 Jan 2013 19:23:08 -0500</pubDate>
			<itunes:subtitle>Take 2 and Call Me after 19 Centuries</itunes:subtitle>
			<itunes:summary>An analysis of pills recovered from a shipwreck off the coast of Italy reveals them to contain zinc compounds that were probably used as eye medication. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Pozzino shipwreck, ancient medication</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Standard Kilogram Needs Trimming</title>
			<description>Contaminants have made the standard kilogram weigh slightly more than it originally did, but a careful cleaning method may slim it down. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=8AB0510E-9FAB-68B4-0298CE78E74EFAC0&amp;ref=p_itune</link>
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			<pubDate>Tue, 15 Jan 2013 21:00:08 -0500</pubDate>
			<itunes:subtitle>Standard Kilogram Needs Trimming</itunes:subtitle>
			<itunes:summary>Contaminants have made the standard kilogram weigh slightly more than it originally did, but a careful cleaning method may slim it down. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:25</itunes:duration>
			<itunes:keywords>Kilogram, standard units</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>App Turns Smart Phone into Key</title>
			<description>An app turns your smart phone into a smart key by using Near Field Communication, NFC, to send data wirelessly over short distances. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=AED6F93C-B8EB-ED2F-38B2768CA15094BA&amp;ref=p_itune</link>
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			<pubDate>Mon, 14 Jan 2013 14:00:08 -0500</pubDate>
			<itunes:subtitle>App Turns Smart Phone into Key</itunes:subtitle>
			<itunes:summary>An app turns your smart phone into a smart key by using Near Field Communication, NFC, to send data wirelessly over short distances. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>ShareKey, smarttoken, Near Field Communication</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Fake Fecal Transplants for Gut RePOOPulation</title>
			<description>A laboratory-made slurry of healthy bacteria could replace human fecal matter in stool transplants to treat bacterial infections. Gretchen Cuda Kroen reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=80156774-01D6-5C70-18D634A730189662&amp;ref=p_itune</link>
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			<pubDate>Thu, 10 Jan 2013 16:50:08 -0500</pubDate>
			<itunes:subtitle>Fake Fecal Transplants for Gut RePOOPulation</itunes:subtitle>
			<itunes:summary>A laboratory-made slurry of healthy bacteria could replace human fecal matter in stool transplants to treat bacterial infections. Gretchen Cuda Kroen reports</itunes:summary>
			<itunes:duration>00:01:17</itunes:duration>
			<itunes:keywords>Fecal transplants, RePOOPulate</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Wrinkled Fingers Are Not Slippery When Wet</title>
			<description>Volunteers were more adept at handling wet objects when their fingertips had gotten waterlogged to the point of being wrinkled than when their fingers were dry. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=51ADADFF-E98F-7956-C547AC8C4BC7F6FC&amp;ref=p_itune</link>
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			<pubDate>Wed, 9 Jan 2013 19:09:08 -0500</pubDate>
			<itunes:subtitle>Wrinkled Fingers Are Not Slippery When Wet</itunes:subtitle>
			<itunes:summary>Volunteers were more adept at handling wet objects when their fingertips had gotten waterlogged to the point of being wrinkled than when their fingers were dry. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Fingertips, dexterity</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Milky Way May Contain 100 Billion Planets</title>
			<description>Based on exoplanet observations made using the Kepler space telescope, astronomers estimate that our galaxy&apos;s ratio of stars to planets is at least one to one. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=07252DC5-AF5D-238F-9A4087CAEF59951C&amp;ref=p_itune</link>
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			<pubDate>Tue, 8 Jan 2013 08:25:08 -0500</pubDate>
			<itunes:subtitle>Milky Way May Contain 100 Billion Planets</itunes:subtitle>
			<itunes:summary>Based on exoplanet observations made using the Kepler space telescope, astronomers estimate that our galaxy&apos;s ratio of stars to planets is at least one to one. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:26</itunes:duration>
			<itunes:keywords>Milky Way, exoplanets</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Cup Color Tricks Taste Buds</title>
			<description>The same hot chocolate served in an orange cup was rated more &quot;chocolaty&quot; than when it was served in cups of other colors. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=F2BC60DE-A9EE-8552-4DA9383ACE47B8F1&amp;ref=p_itune</link>
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			<pubDate>Mon, 7 Jan 2013 22:53:08 -0500</pubDate>
			<itunes:subtitle>Cup Color Tricks Taste Buds</itunes:subtitle>
			<itunes:summary>The same hot chocolate served in an orange cup was rated more &quot;chocolaty&quot; than when it was served in cups of other colors. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Taste, perception</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Bigger Brains Come at a Cost</title>
			<description>Guppies bred for larger brains also had smaller guts and produced fewer offspring. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=50C96B2D-C037-7100-BEF7E62532D0CC66&amp;ref=p_itune</link>
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			<pubDate>Fri, 4 Jan 2013 19:26:08 -0500</pubDate>
			<itunes:subtitle>Bigger Brains Come at a Cost</itunes:subtitle>
			<itunes:summary>Guppies bred for larger brains also had smaller guts and produced fewer offspring. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:31</itunes:duration>
			<itunes:keywords>Brain size, competing selection pressures</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Bonobos Share with Strangers First</title>
			<description>Bonobos will readily share food, but they&apos;ll offer it up to a strange bonobo before they give it to a member of their known group. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=212892AD-D581-B4A4-15966D2A82CDD95F&amp;ref=p_itune</link>
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			<pubDate>Thu, 3 Jan 2013 21:15:08 -0500</pubDate>
			<itunes:subtitle>Bonobos Share with Strangers First</itunes:subtitle>
			<itunes:summary>Bonobos will readily share food, but they&apos;ll offer it up to a strange bonobo before they give it to a member of their known group. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:24</itunes:duration>
			<itunes:keywords>Bonobo chimps, sharing behavior, reciprocity</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Drones Accelerate Archaeological Site Mapping</title>
			<description>A drone aircraft can acquire in minutes data for a 3-D map of an archaeological site that would have taken humans years to gather. Cynthia Graber reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=81071AFC-C29D-ECD3-664C299EE035424D&amp;ref=p_itune</link>
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			<pubDate>Mon, 31 Dec 2012 18:37:08 -0500</pubDate>
			<itunes:subtitle>Drones Accelerate Archaeological Site Mapping</itunes:subtitle>
			<itunes:summary>A drone aircraft can acquire in minutes data for a 3-D map of an archaeological site that would have taken humans years to gather. Cynthia Graber reports</itunes:summary>
			<itunes:duration>00:01:30</itunes:duration>
			<itunes:keywords>Archaeological field site mapping, Steven Wernke</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Forest Canopy Color Reveals CO2 Uptake</title>
			<description>Tree leaf color provides a good proxy for photosynthetic productivity, indicating how much carbon dioxide a tree is sequestering. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=D889E903-B8B6-8937-0A676BE1EFCBC472&amp;ref=p_itune</link>
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			<pubDate>Fri, 28 Dec 2012 12:03:08 -0500</pubDate>
			<itunes:subtitle>Forest Canopy Color Reveals CO2 Uptake</itunes:subtitle>
			<itunes:summary>Tree leaf color provides a good proxy for photosynthetic productivity, indicating how much carbon dioxide a tree is sequestering. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:32</itunes:duration>
			<itunes:keywords>Climate change, photosynthetic productivity</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Humidity Levels Explain U.S. Flu Winter Peak</title>
			<description>In temperate regions the influenza virus fares best when the weather is dry. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=C1D17842-D4EF-FBDC-63E6BD333C9E212D&amp;ref=p_itune</link>
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			<pubDate>Thu, 27 Dec 2012 12:59:08 -0500</pubDate>
			<itunes:subtitle>Humidity Levels Explain U.S. Flu Winter Peak</itunes:subtitle>
			<itunes:summary>In temperate regions the influenza virus fares best when the weather is dry. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:27</itunes:duration>
			<itunes:keywords>Flu, viral survival, influenza</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Telecommuters Work Longer Hours Than Office-Goers</title>
			<description>Census stats show that people who work at home at least some of the time put in more hours each week than those who stay at the office. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=75ABB06A-DDCF-FF51-77200DEEB17B15B6&amp;ref=p_itune</link>
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			<pubDate>Wed, 26 Dec 2012 14:00:08 -0500</pubDate>
			<itunes:subtitle>Telecommuters Work Longer Hours Than Office-Goers</itunes:subtitle>
			<itunes:summary>Census stats show that people who work at home at least some of the time put in more hours each week than those who stay at the office. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:31</itunes:duration>
			<itunes:keywords>Telecommuting, labor force</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>British Frozen Dinners Beat TV Chefs&apos; Recipes for Nutrition</title>
			<description>Recipes in cookbooks written by British television chefs had more calories and less fiber than frozen meals manufactured by British supermarket chains. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=72371471-ECBC-A299-E910185E04F694A6&amp;ref=p_itune</link>
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			<pubDate>Tue, 25 Dec 2012 23:59:08 -0500</pubDate>
			<itunes:subtitle>British Frozen Dinners Beat TV Chefs&apos; Recipes for Nutrition</itunes:subtitle>
			<itunes:summary>Recipes in cookbooks written by British television chefs had more calories and less fiber than frozen meals manufactured by British supermarket chains. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:24</itunes:duration>
			<itunes:keywords>Diet, obesity</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Slow and Steady Wins the Staircase Workout</title>
			<description>People who climb stairs one at a time burn more calories per staircase than do those who bound two stairs at a time. Rose Eveleth reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=71628ABF-DF39-D065-F872D471C3B34750&amp;ref=p_itune</link>
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			<pubDate>Mon, 24 Dec 2012 23:59:08 -0500</pubDate>
			<itunes:subtitle>Slow and Steady Wins the Staircase Workout</itunes:subtitle>
			<itunes:summary>People who climb stairs one at a time burn more calories per staircase than do those who bound two stairs at a time. Rose Eveleth reports</itunes:summary>
			<itunes:duration>00:01:31</itunes:duration>
			<itunes:keywords>Stair climbing, exercise</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Perennial Flu Vaccine Gets Closer</title>
			<description>A vaccine aimed at the stable M2 flu virus protein, rather than the variable H or N proteins, could be useful every year. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=669E894B-EB61-D6D2-7F4E4B06E01174B0&amp;ref=p_itune</link>
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			<pubDate>Fri, 21 Dec 2012 07:40:08 -0500</pubDate>
			<itunes:subtitle>Perennial Flu Vaccine Gets Closer</itunes:subtitle>
			<itunes:summary>A vaccine aimed at the stable M2 flu virus protein, rather than the variable H or N proteins, could be useful every year. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:31</itunes:duration>
			<itunes:keywords>Flu vaccine, M2 flu protein</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Norovirus Survives Restaurant Dishwashing Protocols</title>
			<description>Dishwashing protocols designed with food-borne bacteria in mind didn&apos;t cut the mustard in a test with noroviruses, which cause nasty gastrointestinal illnesses. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=4B791833-AD85-0F44-F03ED58270F520E8&amp;ref=p_itune</link>
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			<pubDate>Thu, 20 Dec 2012 19:00:08 -0500</pubDate>
			<itunes:subtitle>Norovirus Survives Restaurant Dishwashing Protocols</itunes:subtitle>
			<itunes:summary>Dishwashing protocols designed with food-borne bacteria in mind didn&apos;t cut the mustard in a test with noroviruses, which cause nasty gastrointestinal illnesses. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:27</itunes:duration>
			<itunes:keywords>Norovirus, foodborne illness</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Whales Sing When and Where They Wanna</title>
			<description>Humpback whales sing complex songs even when diving and foraging, when it&apos;s neither the time nor place for mating behavior. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=1C7C1154-0AB6-EF95-5924D8E838F4CBAB&amp;ref=p_itune</link>
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			<pubDate>Wed, 19 Dec 2012 21:00:08 -0500</pubDate>
			<itunes:subtitle>Whales Sing When and Where They Wanna</itunes:subtitle>
			<itunes:summary>Humpback whales sing complex songs even when diving and foraging, when it&apos;s neither the time nor place for mating behavior. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:20</itunes:duration>
			<itunes:keywords>Whale song, whale behavior</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Better Bitter Tasters Bust Bacteria</title>
			<description>Those who can better detect bitter flavors may also be better equipped to fight off upper respiratory tract bacterial infections. Mary Harris reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=E8D33B48-9577-BA71-ADDAA99DD03EDFE1&amp;ref=p_itune</link>
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			<pubDate>Tue, 18 Dec 2012 21:02:08 -0500</pubDate>
			<itunes:subtitle>Better Bitter Tasters Bust Bacteria</itunes:subtitle>
			<itunes:summary>Those who can better detect bitter flavors may also be better equipped to fight off upper respiratory tract bacterial infections. Mary Harris reports</itunes:summary>
			<itunes:duration>00:01:26</itunes:duration>
			<itunes:keywords>Bitter taste, bacterial infection</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Low-Tech Wastewater Treatment Recipe Features Onions</title>
			<description>Powdered onions sopped up most of the lead, iron and tin in wastewater samples laden with the metals. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=BDAD4BCC-CC8B-ADD9-9B906CE9321331A1&amp;ref=p_itune</link>
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			<pubDate>Mon, 17 Dec 2012 23:59:08 -0500</pubDate>
			<itunes:subtitle>Low-Tech Wastewater Treatment Recipe Features Onions</itunes:subtitle>
			<itunes:summary>Powdered onions sopped up most of the lead, iron and tin in wastewater samples laden with the metals. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:30</itunes:duration>
			<itunes:keywords>Heavy metal abatement, onion, garlic</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Deeper-Voiced Women Have Election Advantage</title>
			<description>In mock elections between female candidates the deeper voice carried the vast majority of the votes. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=E306121F-CC2D-197D-B2ED040675381BDD&amp;ref=p_itune</link>
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			<pubDate>Thu, 13 Dec 2012 19:01:08 -0500</pubDate>
			<itunes:subtitle>Deeper-Voiced Women Have Election Advantage</itunes:subtitle>
			<itunes:summary>In mock elections between female candidates the deeper voice carried the vast majority of the votes. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Politics, elections, dominance characteristics, voice</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Humans Said Cheese 7,500 Years Ago</title>
			<description>Milk fat residue on pottery shards shows that people were purposefully making cheese at least 7,500 years ago. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=A1E0AA37-E85C-8BEA-4FA1A1ECC7F34991&amp;ref=p_itune</link>
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			<pubDate>Wed, 12 Dec 2012 12:57:08 -0500</pubDate>
			<itunes:subtitle>Humans Said Cheese 7,500 Years Ago</itunes:subtitle>
			<itunes:summary>Milk fat residue on pottery shards shows that people were purposefully making cheese at least 7,500 years ago. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:17</itunes:duration>
			<itunes:keywords>Cheese, archaeology, human diet</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Scats Reveal Gorilla Diet Stats</title>
			<description>Via carbon isotope measurement, what comes out of a gorilla reveals an accurate estimate of what went into the gorilla. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=6AA70881-E8D7-B3E7-9024F8B07537F43B&amp;ref=p_itune</link>
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			<pubDate>Tue, 11 Dec 2012 10:57:08 -0500</pubDate>
			<itunes:subtitle>Scats Reveal Gorilla Diet Stats</itunes:subtitle>
			<itunes:summary>Via carbon isotope measurement, what comes out of a gorilla reveals an accurate estimate of what went into the gorilla. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:14</itunes:duration>
			<itunes:keywords>Gorilla, feces data</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Porcupine Quills Inspire Better Needles</title>
			<description>The barbs on porcupine quill tips let them penetrate flesh with less force and hold on with more force than a barbless needle. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=454B683C-0D4A-753A-090AECE8655CBBD5&amp;ref=p_itune</link>
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			<pubDate>Mon, 10 Dec 2012 17:31:08 -0500</pubDate>
			<itunes:subtitle>Porcupine Quills Inspire Better Needles</itunes:subtitle>
			<itunes:summary>The barbs on porcupine quill tips let them penetrate flesh with less force and hold on with more force than a barbless needle. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Porcupine quill, hypodermic needle</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Cave Artists Had Leg Up on Moderns</title>
			<description>A comparison of prehistoric and more recent art reveals that early humans had a better grasp of quadruped locomotion. Sophie Bushwick reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=A6DFB336-FF9A-5483-C384756F27064AFD&amp;ref=p_itune</link>
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			<pubDate>Fri, 7 Dec 2012 15:42:08 -0500</pubDate>
			<itunes:subtitle>Cave Artists Had Leg Up on Moderns</itunes:subtitle>
			<itunes:summary>A comparison of prehistoric and more recent art reveals that early humans had a better grasp of quadruped locomotion. Sophie Bushwick reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Cave paintings, animal locomotion, art</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
		</item>
		
		<item>
			<title>We Listen with Our Hands, Too</title>
			<description>Hearing action words can cause subtle motor responses--but context is key. Daisy Yuhas reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=7A029566-C5A5-1F39-942615F04EC2BC44&amp;ref=p_itune</link>
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			<pubDate>Thu, 6 Dec 2012 18:47:08 -0500</pubDate>
			<itunes:subtitle>We Listen with Our Hands, Too</itunes:subtitle>
			<itunes:summary>Hearing action words can cause subtle motor responses--but context is key. Daisy Yuhas reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Language-Induced Motor Activity, Action Words</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Bird Nest Ciggy Butts Lower Parasite Load</title>
			<description>Mexico City birds that decorate their digs with discarded cigarette butts are less bothered by parasites. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=457D83B2-FB88-DE0F-DDFAFF05F5047F1E&amp;ref=p_itune</link>
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			<pubDate>Wed, 5 Dec 2012 18:18:08 -0500</pubDate>
			<itunes:subtitle>Bird Nest Ciggy Butts Lower Parasite Load</itunes:subtitle>
			<itunes:summary>Mexico City birds that decorate their digs with discarded cigarette butts are less bothered by parasites. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:14</itunes:duration>
			<itunes:keywords>Bird nests, urban birds, nicotine, parasite load</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Mercury Dumped in Ocean Returns in Fog</title>
			<description>Trace amounts of mercury dumped in the Pacific possibly during gold rush days are being carried back on land in fog from the ocean. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=129CAFA2-EBFF-FA70-5E17EB66824319DF&amp;ref=p_itune</link>
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			<pubDate>Tue, 4 Dec 2012 18:36:08 -0500</pubDate>
			<itunes:subtitle>Mercury Dumped in Ocean Returns in Fog</itunes:subtitle>
			<itunes:summary>Trace amounts of mercury dumped in the Pacific possibly during gold rush days are being carried back on land in fog from the ocean. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Mercury, Peter Weiss-Penzias</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Parrots Mimic Other Specific Parrots</title>
			<description>Parrots appear to purposely imitate the calls of other individual parrots from which they wish to get a response. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=009EB2CE-9144-931E-0FEC3967600A527E&amp;ref=p_itune</link>
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			<pubDate>Mon, 3 Dec 2012 23:59:08 -0500</pubDate>
			<itunes:subtitle>Parrots Mimic Other Specific Parrots</itunes:subtitle>
			<itunes:summary>Parrots appear to purposely imitate the calls of other individual parrots from which they wish to get a response. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:18</itunes:duration>
			<itunes:keywords>Parrot, conure, vocal mimicry</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Researchers Sequence Sweet, Juicy Genome</title>
			<description>A consortium has published the complete genome of a top fresh fruit--the domesticated watermelon. Gretchen Cuda Kroen reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=4A287934-0FC9-A9F8-F5B78FED4B4361F0&amp;ref=p_itune</link>
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			<pubDate>Sat, 1 Dec 2012 07:00:08 -0500</pubDate>
			<itunes:subtitle>Researchers Sequence Sweet, Juicy Genome</itunes:subtitle>
			<itunes:summary>A consortium has published the complete genome of a top fresh fruit--the domesticated watermelon. Gretchen Cuda Kroen reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Watermelon, genome, agriculture, agronomy</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Photosynthetic Bacteria Pick Best Light</title>
			<description>Blue-green algae (really bacteria) can fine-tune their photosynthetic apparatus to take advantage of the predominant wavelength of ambient light. Gretchen Cuda Kroen reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=48390A21-DF77-C6BE-6338259C47C6E6AB&amp;ref=p_itune</link>
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			<pubDate>Fri, 30 Nov 2012 20:19:08 -0500</pubDate>
			<itunes:subtitle>Photosynthetic Bacteria Pick Best Light</itunes:subtitle>
			<itunes:summary>Blue-green algae (really bacteria) can fine-tune their photosynthetic apparatus to take advantage of the predominant wavelength of ambient light. Gretchen Cuda Kroen reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Pond scum, cyanobacteria, blue-green algae, photosynthesis</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Meat Allergy Reaches Regions without Ticks</title>
			<description>Experts aren&apos;t sure why a meat allergy linked to tick bites is reaching areas beyond the ticks&apos; range. Gretchen Cuda Kroen reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=D26849F6-9CC0-6270-BD5DB56AAF149320&amp;ref=p_itune</link>
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			<pubDate>Wed, 28 Nov 2012 13:24:08 -0500</pubDate>
			<itunes:subtitle>Meat Allergy Reaches Regions without Ticks</itunes:subtitle>
			<itunes:summary>Experts aren&apos;t sure why a meat allergy linked to tick bites is reaching areas beyond the ticks&apos; range. Gretchen Cuda Kroen reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Lone Star Tick, meat allergy</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Crocodile Skin Confers Delicate Touch Sense</title>
			<description>The bumps that cover the skin of crocodilians are full of nerve endings that are exquisitely sensitive to pressure and vibration. Gretchen Cuda Kroen reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=A24EE5D7-F25C-456D-E4177851A2A99719&amp;ref=p_itune</link>
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			<pubDate>Tue, 27 Nov 2012 14:57:08 -0500</pubDate>
			<itunes:subtitle>Crocodile Skin Confers Delicate Touch Sense</itunes:subtitle>
			<itunes:summary>The bumps that cover the skin of crocodilians are full of nerve endings that are exquisitely sensitive to pressure and vibration. Gretchen Cuda Kroen reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Crocodilians, integument</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Olfactory Overload Causes White Smell</title>
			<description>Combining a wide variety of odors gives rise to a nondescript scent, just as combining colors of many wavelengths generates white light. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=6B811CFB-E3FA-CDA1-376FB7BD925DA9B3&amp;ref=p_itune</link>
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			<pubDate>Mon, 26 Nov 2012 13:25:08 -0500</pubDate>
			<itunes:subtitle>Olfactory Overload Causes White Smell</itunes:subtitle>
			<itunes:summary>Combining a wide variety of odors gives rise to a nondescript scent, just as combining colors of many wavelengths generates white light. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>White smell, olfaction</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Old Book&apos;s Wormholes Show Geographic Origin</title>
			<description>By measuring wormholes in ancient texts, researchers can identify the larval attackers and then limit the origin site for the individual book. Rose Eveleth reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=3E50ECA6-9BB6-D098-54CF3E77EB493972&amp;ref=p_itune</link>
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			<pubDate>Tue, 20 Nov 2012 19:12:08 -0500</pubDate>
			<itunes:subtitle>Old Book&apos;s Wormholes Show Geographic Origin</itunes:subtitle>
			<itunes:summary>By measuring wormholes in ancient texts, researchers can identify the larval attackers and then limit the origin site for the individual book. Rose Eveleth reports</itunes:summary>
			<itunes:duration>00:01:13</itunes:duration>
			<itunes:keywords>Common Furniture Beetle, Mediterranean Furniture Beetle, museum holdings</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Other Great Apes May Have Midlife Crises</title>
			<description>Zookeeper ratings of the moods of 500 chimps and orangutans revealed that our closest relatives also show a U-shaped curve of life satisfaction. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=12A152F9-C0DA-7AF6-1954051F86BB47A3&amp;ref=p_itune</link>
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			<pubDate>Mon, 19 Nov 2012 21:00:08 -0500</pubDate>
			<itunes:subtitle>Other Great Apes May Have Midlife Crises</itunes:subtitle>
			<itunes:summary>Zookeeper ratings of the moods of 500 chimps and orangutans revealed that our closest relatives also show a U-shaped curve of life satisfaction. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:17</itunes:duration>
			<itunes:keywords>Midlife crisis, great apes, life satisfaction</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Placebos Work Better on Stoics</title>
			<description>Placebo painkillers do less for people who tend toward hostility and work best for the naturally resilient. Karen Hopkin reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=77111C5C-B9E6-BDCB-1ED91D4F1B8C1364&amp;ref=p_itune</link>
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			<pubDate>Fri, 16 Nov 2012 20:12:08 -0500</pubDate>
			<itunes:subtitle>Placebos Work Better on Stoics</itunes:subtitle>
			<itunes:summary>Placebo painkillers do less for people who tend toward hostility and work best for the naturally resilient. Karen Hopkin reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Placebo, Neuropsychopharmacology</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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		<item>
			<title>Wormy Monkeys Had Healthier Intestines</title>
			<description>Infecting monkeys with helminth worms lessened the symptoms of their version of inflammatory bowel disease. Christopher Intagliata reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=4A650A5C-FD7B-F593-119CC28390B0E195&amp;ref=p_itune</link>
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			<pubDate>Thu, 15 Nov 2012 23:22:08 -0500</pubDate>
			<itunes:subtitle>Wormy Monkeys Had Healthier Intestines</itunes:subtitle>
			<itunes:summary>Infecting monkeys with helminth worms lessened the symptoms of their version of inflammatory bowel disease. Christopher Intagliata reports</itunes:summary>
			<itunes:duration>00:01:15</itunes:duration>
			<itunes:keywords>Helminth worms, hygiene hypothesis, IBD</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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			<title>Rats Direct Inhalations for Smell Focus</title>
			<description>Rats change the way air flows across the insides of their nostrils to direct the scent to the nasal region where it can be best detected. Gretchen Cuda Kroen reports</description>
		
			<link>http://www.scientificamerican.com/podcast/podcast.mp3?e_id=08532A7D-DF1D-240E-E0AF72F5FCF4A2CD&amp;ref=p_itune</link>
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			<pubDate>Wed, 14 Nov 2012 16:37:08 -0500</pubDate>
			<itunes:subtitle>Rats Direct Inhalations for Smell Focus</itunes:subtitle>
			<itunes:summary>Rats change the way air flows across the insides of their nostrils to direct the scent to the nasal region where it can be best detected. Gretchen Cuda Kroen reports</itunes:summary>
			<itunes:duration>00:01:16</itunes:duration>
			<itunes:keywords>Smell, olfaction</itunes:keywords>
			<itunes:author>Scientific American</itunes:author>
			<itunes:explicit>no</itunes:explicit>
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