Group items tagged far - science

Piezo-rubber creates potential for wearable energy system - 0 views

arstechnica.com/...for-wearable-energy-system.ars

piezo-rubber electricity generation

shared by Skeptical Debunker on 03 Mar 10 - Cached

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Skeptical Debunker on 03 Mar 10

As we continue to carry around items that insist on requiring electricity to work, portable-even wearable-energy-generating systems are looking very attractive. A group of researchers has recently looked into the use of piezoelectric materials, which generate an electric field or potential when placed under mechanical stress. By placing these materials on a rubbery or flexible surface, they created a material that can generate the highest rate of energy conversion reported for similar systems. While these are still far from the market, the metrics of the flexible piezoelectrics so far are very promising.

<div class="cArrow"> </div><div class="cContentInner">As we continue to carry around items that insist on requiring electricity to work, portable-even wearable-energy-generating systems are looking very attractive. A group of researchers has recently looked into the use of piezoelectric materials, which generate an electric field or potential when placed under mechanical stress. By placing these materials on a rubbery or flexible surface, they created a material that can generate the highest rate of energy conversion reported for similar systems. While these are still far from the market, the metrics of the flexible piezoelectrics so far are very promising.</div>

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Technology Review: Blogs: arXiv blog: Highlights from the Gallery of Fluid Motion - 9 views

www.technologyreview.com/...25918

Technology Review: Blogs: arXiv blog: Highlights from the Gallery of Fluid Motion

shared by thinkahol * on 23 Oct 10 - No Cached

benton34, meenatanwar, indiahq, and naincy liked it

thinkahol * on 23 Oct 10

The best of the bunch (so far) for the 2010 American Physical Society's Gallery of Fluid Motion Each year, the Fluid Dynamics division of the American Physical Society holds a conference. This year, the meeting is in Long Beach, California, in November. One of the highlights is the impressive set of videos of fluid motion that the delegates put together. These videos have already begun to appear on the arViv in impressive numbers. Videos are an effective and increasingly popular way of publishing research. Expect to see more like this. But there are clearly better ways to make them available other than as downloads from the arXiv or as videos in a room in Long Beach. One obvious option is to make them available on streaming websites such as YouTube andVimeo. As far as I can tell, they are not available like this. Another is to create a website that showcases them in advance, to make it a global, web-based event. Many of the videos are superb. Not only could they command a bigger audience, they deserve it. If plans are afoot to make the Gallery of Fluid Motion a bigger event, then great. If not, shame! Here is my selection of the highlights this year.

<div class="cArrow"> </div><div class="cContentInner">The best of the bunch (so far) for the 2010 American Physical Society's Gallery of Fluid Motion Each year, the Fluid Dynamics division of the American Physical Society holds a conference. This year, the meeting is in Long Beach, California, in November. One of the highlights is the impressive set of videos of fluid motion that the delegates put together. These videos have already begun to appear on the arViv in impressive numbers. Videos are an effective and increasingly popular way of publishing research. Expect to see more like this. But there are clearly better ways to make them available other than as downloads from the arXiv or as videos in a room in Long Beach. One obvious option is to make them available on streaming websites such as YouTube andVimeo. As far as I can tell, they are not available like this. Another is to create a website that showcases them in advance, to make it a global, web-based event. Many of the videos are superb. Not only could they command a bigger audience, they deserve it. If plans are afoot to make the Gallery of Fluid Motion a bigger event, then great. If not, shame! Here is my selection of the highlights this year.</div>

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Why our minds have probably evolved as far as they can go - 2 views

io9.com/...bly-evolved-as-far-as-they-can

Why our minds have probably evolved as far they can go

shared by thinkahol * on 01 Jan 12 - No Cached

Use of DNA evidence is not an open and shut case, professor says - 0 views

www.physorg.com/news186090040.html

book DNA evidence The Double Helix and the Law of Evidence

shared by Skeptical Debunker on 23 Feb 10 - Cached

In his new book, "The Double Helix and the Law of Evidence" (Harvard University Press), Kaye focuses on the intersection of science and law, and emphasizes that DNA evidence is merely information. "There's a popular perception that with DNA, you get results," Kaye said. "You're either guilty or innocent, and the DNA speaks the truth. That goes too far. DNA is a tool. Perhaps in many cases it's open and shut, in other cases it's not. There's ambiguity."
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One of the book's key themes is that using science in court is hard to do right. "It requires lawyers and judges to understand a lot about the science," Kaye noted. "They don't have to be scientists or technicians, but they do have to know enough to understand what's going on and whether the statements that experts are making are well-founded. The lawyers need to be able to translate that information into a form that a judge or a jury can understand." Kaye also believes that lawyers need to better understand statistics and probability, an area that has traditionally been neglected in law school curricula. His book attempts to close this gap in understanding with several sections on genetic science and probability. The book also contends that scientists, too, have contributed to the false sense of certainty, when they are so often led by either side of one particular case to take an extreme position. Scientists need to approach their role as experts less as partisans and more as defenders of truth. Aiming to be a definitive history of the use of DNA evidence, "The Double Helix and the Law of Evidence" chronicles precedent-setting criminal trials, battles among factions of the scientific community and a multitude of issues with the use of probability and statistics related to DNA. From the Simpson trial to the search for the last Russian Tsar, Kaye tells the story of how DNA science has impacted society. He delves into the history of the application of DNA science and probability within the legal system and depicts its advances and setbacks.
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Skeptical Debunker on 23 Feb 10

Whether used to clinch a guilty verdict or predict the end of a "CSI" episode, DNA evidence has given millions of people a sense of certainty -- but the outcomes of using DNA evidence have often been far from certain, according to David Kaye, Distinguished Professor of Law at Penn State.

<div class="cArrow"> </div><div class="cContentInner">Whether used to clinch a guilty verdict or predict the end of a "CSI" episode, DNA evidence has given millions of people a sense of certainty -- but the outcomes of using DNA evidence have often been far from certain, according to David Kaye, Distinguished Professor of Law at Penn State.</div>

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Genetic Modification Of Plants: A Natural Method! - 1 views

New qualities acquainted with harvest plants by genetic engineering can possibly build good yields, enhance horticultural practices, or add nourishing quality to items. Case in point, genetically m...

modified plants genetically crops microbial genetics science research Trivedi Effect the

started by anonymous on 02 Jan 15 no follow-up yet

Ellen Jorgensen: Biohacking -- you can do it, too | Video on TED.com - 0 views

www.ted.com/...hacking_you_can_do_it_too.html

science biohacking diybio biology excellent innovation genetics

shared by Erich Feldmeier on 25 Jan 13 - No Cached

Erich Feldmeier on 25 Jan 13

"The press had a tendency to consistently overestimate [biohackers'] capabilities and underestimate our ethics. We have personal computing, why not personal biotech? That's the question biologist Ellen Jorgensen and her colleagues asked themselves before opening Genspace, a nonprofit DIYbio lab in Brooklyn devoted to citizen science, where amateurs can go and tinker with biotechnology. Far from being a sinister Frankenstein's lab (as some imagined it), Genspace offers a long list of fun, creative and practical uses for DIYbio. Ellen Jorgensen is at the leading edge of the do-it-yourself biotechnology movement, which brings scientific exploration and understanding to the masses"

<div class="cArrow"> </div><div class="cContentInner">"The press had a tendency to consistently overestimate [biohackers'] capabilities and underestimate our ethics. We have personal computing, why not personal biotech? That's the question biologist Ellen Jorgensen and her colleagues asked themselves before opening Genspace, a nonprofit DIYbio lab in Brooklyn devoted to citizen science, where amateurs can go and tinker with biotechnology. Far from being a sinister Frankenstein's lab (as some imagined it), Genspace offers a long list of fun, creative and practical uses for DIYbio. Ellen Jorgensen is at the leading edge of the do-it-yourself biotechnology movement, which brings scientific exploration and understanding to the masses"</div>

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John Cryan: Mind-Altering Bugs - ScienceNOW - 0 views

news.sciencemag.org/...mind-altering-bugs.html

biology health excellent microbiology neurobiology behaviour

shared by Erich Feldmeier on 25 Jun 12 - No Cached

Erich Feldmeier on 25 Jun 12

"Hundreds of species of bacteria call the human gut their home. This gut "microbiome" influences our physiology and health in ways that scientists are only beginning to understand. Now, a new study suggests that gut bacteria can even mess with the mind, altering brain chemistry and changing mood and behavior. In recent years, researchers have become increasingly interested in how gut bacteria might influence the brain and behavior, says John Cryan, a neuroscientist at University College Cork in Ireland. So far, most of the work has focused on how pathogenic bugs influence the brain by releasing toxins or stimulating the immune system, Cryan says. One recent study suggested that even benign bacteria can alter the brain and behavior, but until now there has been very little work in this area, Cryan says."

<div class="cArrow"> </div><div class="cContentInner">"Hundreds of species of bacteria call the human gut their home. This gut "microbiome" influences our physiology and health in ways that scientists are only beginning to understand. Now, a new study suggests that gut bacteria can even mess with the mind, altering brain chemistry and changing mood and behavior. In recent years, researchers have become increasingly interested in how gut bacteria might influence the brain and behavior, says John Cryan, a neuroscientist at University College Cork in Ireland. So far, most of the work has focused on how pathogenic bugs influence the brain by releasing toxins or stimulating the immune system, Cryan says. One recent study suggested that even benign bacteria can alter the brain and behavior, but until now there has been very little work in this area, Cryan says."</div>

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D. Schreiber , M. Iacoboni: PolitPsych_Schreiber_2012.pdf (application/pdf-Objekt) - 0 views

iacoboni.bol.ucla.edu/...PolitPsych_Schreiber_2012.pdf

diversity neurobiology biology behaviour groupthink psychology excellent

shared by Erich Feldmeier on 08 Jul 12 - No Cached

Erich Feldmeier on 08 Jul 12

While a substantial body of work has been devoted to understanding the role of negative stereotypes in racial attitudes, far less is known about how we deal with contradictions of those stereotypes. This article uses functional brain imaging with contextually rich visual stimuli to explore the neural mechanisms that are involved in cognition about social norms and race. We present evidence that racial stereotypes are more about the stereotypes than about race per se. Amygdala activity (correlated with negative racial attitudes in other studies) appeared driven by norm violation, rather than race.

<div class="cArrow"> </div><div class="cContentInner">While a substantial body of work has been devoted to understanding the role of negative stereotypes in racial attitudes, far less is known about how we deal with contradictions of those stereotypes. This article uses functional brain imaging with contextually rich visual stimuli to explore the neural mechanisms that are involved in cognition about social norms and race. We present evidence that racial stereotypes are more about the stereotypes than about race per se. Amygdala activity (correlated with negative racial attitudes in other studies) appeared driven by norm violation, rather than race.</div>

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Belly Bacteria Boss The Brain - Science News - 0 views

www.sciencenews.org/...Belly_bacteria_boss_the_brain

health microbiology biology science neurobiology complexity

shared by Erich Feldmeier on 24 Aug 12 - No Cached

Erich Feldmeier on 24 Aug 12

"But, "one has to be cautious. This is exciting science in rodents, but you can't just extrapolate to humans," says Emeran Mayer, a gastroenterologist and neuroscientist at UCLA's Center for Neurobiology of Stress who was not involved in the new study. Drug and food companies that make probiotics - beneficial bacteria taken in a pill or eaten in food such as yogurt - hope the products can help relieve depression, improve weight loss and cure other conditions, but there is little evidence in people that probiotics can accomplish those goals, Mayer says. "It's almost like science fiction; you can imagine the most amazing things because so little is known about it," he says. But, "So far there's really no evidence that probiotics affect emotions in humans." "

<div class="cArrow"> </div><div class="cContentInner">"But, "one has to be cautious. This is exciting science in rodents, but you can't just extrapolate to humans," says Emeran Mayer, a gastroenterologist and neuroscientist at UCLA's Center for Neurobiology of Stress who was not involved in the new study. Drug and food companies that make probiotics - beneficial bacteria taken in a pill or eaten in food such as yogurt - hope the products can help relieve depression, improve weight loss and cure other conditions, but there is little evidence in people that probiotics can accomplish those goals, Mayer says. "It's almost like science fiction; you can imagine the most amazing things because so little is known about it," he says. But, "So far there's really no evidence that probiotics affect emotions in humans." "</div>

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Rob Dunn: Domestic Biomes: The Wild Life of Our Bodies and Homes | Your Wild Life - 0 views

www.yourwildlife.org/d-life-of-our-bodies-and-homes

science research biology microbiology excellent evolution

shared by Erich Feldmeier on 23 Dec 11 - No Cached

Erich Feldmeier on 23 Dec 11

" Moving Beyond Belly Button Biodiversity…we will study the species living with you on your body but also in the other biomes of YOUR household. If you want to know who is hiding in your refrigerator or mating in the pillow where you rest your head, we can help you. When you look beside you in bed, you notice no more than one animal (alternative lifestyles and cats notwithstanding). For nearly all of our history, our beds and lives were shared by multitudes. Live in a mud-walled hut in the Amazon, and bats will sleep above you, spiders beside you, the dog and cat not far away, and then there are the insects beating themselves stupid against the dwindling animal-fat flame. In addition, your gut would be filled with intestinal worms, your body (and nearly everything else) covered in multitudes of unnamed microbes, and your lungs occupied by a fungus uniquely your own."

<div class="cArrow"> </div><div class="cContentInner">" Moving Beyond Belly Button Biodiversity…we will study the species living with you on your body but also in the other biomes of YOUR household. If you want to know who is hiding in your refrigerator or mating in the pillow where you rest your head, we can help you. When you look beside you in bed, you notice no more than one animal (alternative lifestyles and cats notwithstanding). For nearly all of our history, our beds and lives were shared by multitudes. Live in a mud-walled hut in the Amazon, and bats will sleep above you, spiders beside you, the dog and cat not far away, and then there are the insects beating themselves stupid against the dwindling animal-fat flame. In addition, your gut would be filled with intestinal worms, your body (and nearly everything else) covered in multitudes of unnamed microbes, and your lungs occupied by a fungus uniquely your own."</div>

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Mind-Altering Bugs - ScienceNOW - 0 views

news.sciencemag.org/...mind-altering-bugs.html

microbiology biology interdisciplinarity science research psychology psychosomatic excellent health

shared by Erich Feldmeier on 15 Nov 11 - No Cached

Erich Feldmeier on 15 Nov 11

"Hundreds of species of bacteria call the human gut their home. This gut "microbiome" influences our physiology and health in ways that scientists are only beginning to understand. Now, a new study suggests that gut bacteria can even mess with the mind, altering brain chemistry and changing mood and behavior. In recent years, researchers have become increasingly interested in how gut bacteria might influence the brain and behavior, says John Cryan, a neuroscientist at University College Cork in Ireland. So far, most of the work has focused on how pathogenic bugs influence the brain by releasing toxins or stimulating the immune system, Cryan says. One recent study suggested that even benign bacteria can alter the brain and behavior, but until now there has been very little work in this area, Cryan says."

<div class="cArrow"> </div><div class="cContentInner">"Hundreds of species of bacteria call the human gut their home. This gut "microbiome" influences our physiology and health in ways that scientists are only beginning to understand. Now, a new study suggests that gut bacteria can even mess with the mind, altering brain chemistry and changing mood and behavior. In recent years, researchers have become increasingly interested in how gut bacteria might influence the brain and behavior, says John Cryan, a neuroscientist at University College Cork in Ireland. So far, most of the work has focused on how pathogenic bugs influence the brain by releasing toxins or stimulating the immune system, Cryan says. One recent study suggested that even benign bacteria can alter the brain and behavior, but until now there has been very little work in this area, Cryan says."</div>

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Marta Soares Tactile stimulation lowers stress in fish : Nature Communications : Nature... - 0 views

www.nature.com/...ncomms1547.html

organization social biology science interdisciplinarity health evolution

shared by Erich Feldmeier on 17 Nov 11 - No Cached

Erich Feldmeier on 17 Nov 11

"In humans, physical stimulation, such as massage therapy, reduces stress and has demonstrable health benefits. Grooming in primates may have similar effects but it remains unclear whether the positive effects are due to physical contact or to its social value. Here we show that physical stimulation reduces stress in a coral reef fish, the surgeonfish Ctenochaetus striatus. These fish regularly visit cleaner wrasses Labroides dimidiatus to have ectoparasites removed. The cleanerfish influences client decisions by physically touching the surgeonfish with its pectoral and pelvic fins, a behaviour known as tactile stimulation. We simulated this behaviour by exposing surgeonfish to mechanically moving cleanerfish models. Surgeonfish had significantly lower levels of cortisol when stimulated by moving models compared with controls with access to stationary models. Our results show that physical contact alone, without a social aspect, is enough to produce fitness-enhancing benefits, a situation so far only demonstrated in humans"

<div class="cArrow"> </div><div class="cContentInner">"In humans, physical stimulation, such as massage therapy, reduces stress and has demonstrable health benefits. Grooming in primates may have similar effects but it remains unclear whether the positive effects are due to physical contact or to its social value. Here we show that physical stimulation reduces stress in a coral reef fish, the surgeonfish Ctenochaetus striatus. These fish regularly visit cleaner wrasses Labroides dimidiatus to have ectoparasites removed. The cleanerfish influences client decisions by physically touching the surgeonfish with its pectoral and pelvic fins, a behaviour known as tactile stimulation. We simulated this behaviour by exposing surgeonfish to mechanically moving cleanerfish models. Surgeonfish had significantly lower levels of cortisol when stimulated by moving models compared with controls with access to stationary models. Our results show that physical contact alone, without a social aspect, is enough to produce fitness-enhancing benefits, a situation so far only demonstrated in humans"</div>

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Adam Maltese, (Siam Beilock!) Sparks to Science, Math and Tech Careers Differ among Sex... - 0 views

www.scientificamerican.com/article.cfm

commonsense education gender personality excellent groupthink science social biology mint

shared by Erich Feldmeier on 14 Aug 12 - No Cached

Erich Feldmeier on 14 Aug 12

"Based on data from a randomized sample of universities and online volunteers who completed a survey, men and women who pursue STEM degrees tend to become interested in science in elementary school. When asked which people and experiences helped to spark their interest, women were more likely than men to select a teacher, a class at school, solving math problems and spending time outdoors, whereas men were more influenced by tinkering, building and reading. As men and women enter college, passion for the field far outweighs all other influences as the main reason for their persistence"

<div class="cArrow"> </div><div class="cContentInner">"Based on data from a randomized sample of universities and online volunteers who completed a survey, men and women who pursue STEM degrees tend to become interested in science in elementary school. When asked which people and experiences helped to spark their interest, women were more likely than men to select a teacher, a class at school, solving math problems and spending time outdoors, whereas men were more influenced by tinkering, building and reading. As men and women enter college, passion for the field far outweighs all other influences as the main reason for their persistence"</div>

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@5SeenGeno @biogarage Randolf Menzel: #sleep #bees memory consolidation #Neurobiology - 0 views

www.neurobiologie.fu-berlin.de/...menzel_sleep.html

Science behaviour biology neurobiology bees

shared by Erich Feldmeier on 20 Mar 14 - No Cached

Erich Feldmeier on 20 Mar 14

"Sleep and its role in memory consolidation The role of sleep in the honeybee memory consolidation has been addressed in our lab in two studies so far. Hussaini et al. (2009; http://www.neurobiologie.fu-berlin.de/menzel/Pub_AGmenzel/Sleep Deprivation.pdf) found reduced retention after extinction learning in an olfactory PER experiment if bees are prevented from sleep during the night following extinction learning. Beyaert, Greggers and Menzel tested freely flying bees after navigation learning and found reduced homing rates if the bees could not sleep the night after novel navigation learning (see Beyaert L, Greggers U and Menzel R (2012) Honeybees consolidate navigation memory during sleep. Journal of Experimental Biology 215, 3981-3988"

<div class="cArrow"> </div><div class="cContentInner">"Sleep and its role in memory consolidation The role of sleep in the honeybee memory consolidation has been addressed in our lab in two studies so far. Hussaini et al. (2009; <a href="http://www.neurobiologie.fu-berlin.de/menzel/Pub_AGmenzel/Sleep" rel="nofollow" target="_blank">http://www.neurobiologie.fu-berlin.de/menzel/Pub_AGmenzel/Sleep</a> Deprivation.pdf) found reduced retention after extinction learning in an olfactory PER experiment if bees are prevented from sleep during the night following extinction learning. Beyaert, Greggers and Menzel tested freely flying bees after navigation learning and found reduced homing rates if the bees could not sleep the night after novel navigation learning (see Beyaert L, Greggers U and Menzel R (2012) Honeybees consolidate navigation memory during sleep. Journal of Experimental Biology 215, 3981-3988"</div>

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Archaeologists discover largest, oldest wine cellar in Near East - 0 views

www.sciencedaily.com/...131122084543.htm

science news archaeology

shared by Ivan Pavlov on 26 Nov 13 - No Cached

Ivan Pavlov on 26 Nov 13

3,700 year-old store room held 2,000 liters of strong, sweet wine. Archaeologists have unearthed what may be the oldest -- and largest -- ancient wine cellar in the Near East, containing forty jars, each of which would have held fifty liters of strong, sweet wine. The cellar was discovered in the ruined palace of a sprawling Canaanite city in northern Israel, called Tel Kabri. The site dates to about 1,700 B.C. and isn't far from many of Israel's modern-day wineries.

<div class="cArrow"> </div><div class="cContentInner">3,700 year-old store room held 2,000 liters of strong, sweet wine. Archaeologists have unearthed what may be the oldest -- and largest -- ancient wine cellar in the Near East, containing forty jars, each of which would have held fifty liters of strong, sweet wine. The cellar was discovered in the ruined palace of a sprawling Canaanite city in northern Israel, called Tel Kabri. The site dates to about 1,700 B.C. and isn't far from many of Israel's modern-day wineries.</div>

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Genome Alberta | Genomics Blog | Biohacking 101: Tools of the Biopunk Trade - 0 views

genomealberta.ca/...ools-of-the-biopunk-trade.aspx

diybio excellent biohacking biology Education Photo

shared by Erich Feldmeier on 14 Oct 13 - No Cached

Erich Feldmeier on 14 Oct 13

"Cathal Garvey demonstrating Do-it-Yourself DNA extraction in a tent from smarimc on Vimeo. Biohackers, like computer hackers before them, need little more than an electronic mailing list to trade tips and information and find the tools they need. DIYbio is by far the largest such list."

<div class="cArrow"> </div><div class="cContentInner">"Cathal Garvey demonstrating Do-it-Yourself DNA extraction in a tent from smarimc on Vimeo. Biohackers, like computer hackers before them, need little more than an electronic mailing list to trade tips and information and find the tools they need. DIYbio is by far the largest such list."</div>

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@biogarage Ian Seppelt: #microbiome Human faeces pumped through a patient's nose used a... - 0 views

www.theguardian.com/...nose-used-as-superbug-medicine

biology microbiology health innovation interdisciplinarity querdenker

shared by Erich Feldmeier on 08 May 14 - No Cached

Erich Feldmeier on 08 May 14

"So far the treatment, known as faecal transplant, has been tested only on a drug resistant form of the bowel disease caused by the bacterium clostridium difficile. Antibiotics are unreliable against the superbug, but the transplant is 95% successful, saving patients from constant stomach cramps and chronic diarrhoea. "It sounds radical but it makes a lot of sense," said Seppelt on Thursday at a gathering of more than 4,000 Australasian anaesthetists and surgeons. "Usually patients are sufficiently miserable to go ahead, often using a donation from a relative." Healthy humans have about 100 times more bacteria cells in their gut than their own cells."

<div class="cArrow"> </div><div class="cContentInner">"So far the treatment, known as faecal transplant, has been tested only on a drug resistant form of the bowel disease caused by the bacterium clostridium difficile. Antibiotics are unreliable against the superbug, but the transplant is 95% successful, saving patients from constant stomach cramps and chronic diarrhoea. "It sounds radical but it makes a lot of sense," said Seppelt on Thursday at a gathering of more than 4,000 Australasian anaesthetists and surgeons. "Usually patients are sufficiently miserable to go ahead, often using a donation from a relative." Healthy humans have about 100 times more bacteria cells in their gut than their own cells."</div>

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Skull suggests three early human species were one - 0 views

www.nature.com/...human-species-were-one-1.13972

science palaeontology

shared by Ivan Pavlov on 25 Oct 13 - No Cached

Ivan Pavlov on 25 Oct 13

One of the most complete early human skulls yet found suggests that what scientists thought were three hominin species may in fact be one. This controversial claim comes from a comparison between the anatomical features of a 1.8-million-year-old fossil skull with those of four other skulls from the same excavation site at Dmanisi, Georgia. The wide variability in their features suggests that Homo habilis, Homo rudolfensis and Homo erectus, the species so far identified as existing worldwide in that era, might represent a single species.

<div class="cArrow"> </div><div class="cContentInner">One of the most complete early human skulls yet found suggests that what scientists thought were three hominin species may in fact be one. This controversial claim comes from a comparison between the anatomical features of a 1.8-million-year-old fossil skull with those of four other skulls from the same excavation site at Dmanisi, Georgia. The wide variability in their features suggests that Homo habilis, Homo rudolfensis and Homo erectus, the species so far identified as existing worldwide in that era, might represent a single species. </div>

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Scientists find potentially habitable planet near Earth - 1 views

www.physorg.com/news204999128.html

exoplanets

shared by Ilmar Tehnas on 02 Oct 10 - No Cached

Ilmar Tehnas on 02 Oct 10

A pity it's so far away that any visit using current technology is unfeasible.

<div class="cArrow"> </div><div class="cContentInner">A pity it's so far away that any visit using current technology is unfeasible.</div>

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One in seven scientists say colleagues fake data - Times Online - 0 views

www.timesonline.co.uk/...article6425036.ece

Science

shared by Maluvia Haseltine on 25 Jul 09 - Cached

Maluvia Haseltine on 25 Jul 09

Faking scientific data and failing to report commercial conflicts of interest are far more prevalent than previously thought, a study suggests.

<div class="cArrow"> </div><div class="cContentInner">Faking scientific data and failing to report commercial conflicts of interest are far more prevalent than previously thought, a study suggests. </div>

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