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Erich Feldmeier

Hachung Chung Species-Specific Microbes May Be Key to a Healthy Immune System: Scientific American - 0 views

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    "Mice have a jungle of bacteria, viruses and fungi in their stomachs-and so do we. These microorganisms help both mice and us break down dinner. As we are finding, these bugs also help to regulate the immune system. But we are just starting to learn how these tiny organisms influence us and how changing their composition changes us... Interestingly, though, the mice with these microbes did not: their immune systems remained underdeveloped. Even when researchers gave rat microbiota to mice, the mice's immune systems failed to mature"
Erich Feldmeier

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

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    "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."
Erich Feldmeier

Michael Nielsen: Reinventing Discovery | Michael Nielsen - 0 views

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    The book is about networked science: the use of online tools to transform the way science is done. In the book I make the case that networked science has the potential to dramatically speed up the rate of scientific discovery, not just in one field, but across all of science. Furthermore, it won't just speed up discovery, but will actually amplify our collective intelligence, expanding the range of scientific problems which can be attacked at all. But, as I explain in the book, there are cultural obstacles that are blocking networked science from achieving its full potential. And so the book is also a manifesto, arguing that networked science must be open science if it is to realize its potential. Making the change to open science is a big challenge. In my opinion it's one of the biggest challenges our society faces, one that requires action on many fronts. One of those fronts is to make sure that everyone - including scientists, but also grant agencies, governments, libraries, and, especially, the general public -- understands how important the stakes are, and how urgent is the need for change.
Erich Feldmeier

Dagomir Kaszlikowski New Theory Explains How Objective Reality Emerges from the Strange Underlying Quantum World | Guest Blog, Scientific American Blog Network - 0 views

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    "In our recent paper, we take a different approach. We consider how measurements work in the macroworld, finding that some quantum features are simply unobservable. Most remarkably, this approach shows that something called quantum nonlocality disappears for objects big enough to contain roughly the Avogadro number of atoms-the number of atoms you'd expect in a few grams of matter."
Janos Haits

Information Diet | Home - 0 views

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    The relationship between power, authority, and information since the dawn of the first major information-technology boom How people react to information consumption, according to cognitive science and neuroscience findings How the new, information-abundant society is suffering consequences from poor information consumption habits
Erich Feldmeier

Alex Kogan, Dacher Keltner: Thin-slicing study of the oxytocin receptor (OXTR) gene and the evaluation and expression of the prosocial disposition - 0 views

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    "Individuals who are homozygous for the G allele of the rs53576 SNP of the oxytocin receptor (OXTR) gene tend to be more prosocial than carriers of the A allele. However, little is known about How these differences manifest behaviorally and whether they are readily detectable by outside observers, both critical questions in theoretical accounts of prosociality. In the present study, we used thin-slicing methodology to test the hypotheses that (i) individual differences in rs53576 genotype predict How prosocial observers judge target individuals to be on the basis of brief observations of behavior, and (ii) that variation in targets' nonverbal displays of affiliative cues would account for these judgment differences. In line with predictions, we found that individuals homozygous for the G allele were judged to be more prosocial than carriers of the A allele. These differences were completely accounted for by variations in the expression of affiliative cues. Thus, individual differences in rs53576 are associated with behavioral manifestations of prosociality, which ultimately guide the judgments others make about the individual. "
Erich Feldmeier

Mind-Altering Bugs - ScienceNOW - 0 views

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    "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."
Erich Feldmeier

Anthony Ives, Stephen Carpenter: Stability and Diversity of Ecosystems - 0 views

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    "Understanding the relationship between diversity and stability requires a knowledge of how species interact with each other and how each is affected by the environment. The relationship is also complex, because the concept of stability is multifaceted; different types of stability describing different properties of ecosystems lead to multiple diversity-stability relationships. A growing number of empirical studies demonstrate positive diversity-stability relationships. These studies, however, have emphasized only a few types of stability, and they rarely uncover the mechanisms responsible for stability. Because anthropogenic changes often affect stability and diversity simultaneously, diversity-stability relationships cannot be understood outside the context of the environmental drivers affecting both. This shifts attention away from diversity-stability relationships toward the multiple factors, including diversity, that dictate the stability of ecosystems."
Janos Haits

The Open Data Handbook - Open Data Handbook - 0 views

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    handbook introduces you to the legal, social and technical aspects of open data. It can be used by anyone but is especially useful for those working with government data. It discusses the why, what and how of open data - why to go open, what open is, and the how to do open.
Erich Feldmeier

How to break into science writing using your blog and social media (#sci4hels) | The SA Incubator, Scientific American Blog Network - 0 views

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    "It is important to be aware that 20th century media ecosystem is a very unusual aberration in the way people communicated throughout history. Means of production were expensive. Very few people could afford to own printing presses, radio and TV studios, etc. Running all that complicated equipment required technical expertise and professional training. Thus media became locked up in silos, hierarchical, broadcast-only with little-to-none (and then again centrally controlled) means for feedback. There was a wealthy, vocal minority that determined what was news, and how to frame it, and the vast majority was consuming the news in silence"
Erich Feldmeier

@biogarage Jamil Bhanji, Mauricio Delgado: The social brain and reward: social information processing in the human striatum - Bhanji - 2013 - Wiley Interdisciplinary Reviews: Cognitive Science - Wiley Online Library - 0 views

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    "This research provides an understanding of the neural basis for social behavior from the perspective of how we evaluate social experiences and how our social interactions and decisions are motivated. We review research addressing the common neural systems underlying evaluation of social and nonsocial rewards. The human striatum, known to play a key role in reward processing, displays signals related to a broad spectrum of social functioning, including evaluating social rewards, making decisions influenced by social factors, learning about social others, cooperating, competing, and following social norms. WIREs Cogn Sci 2014, 5:61-73. doi: 10.1002/wcs.1266"
John Smith

Webinar On Statistical Analysis of Gages - 0 views

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    The seminar begins with an examination of the fundamental vocabulary and concepts related to metrology. Topics include: accuracy, precision, calibration, and "uncertainty ratios". Several of the standard methods for analyzing measurement variation are then described and explained, as derived from AIAG's Measurement System Analysis reference book. The methods include: Gage R&R (ANOVA method, for 3 gages, 3 persons, 3 replicates, and 10 parts), Gage Correlation (for 3 gages), Gage Linearity, and Gage Bias. The seminar ends with an explanation of how to combine all relevant uncertainty information into an "Uncertainty Budget" that helps determine the appropriate width of QC specification intervals (i.e., "guard-banded specifications"). Spreadsheets are used to demonstrate how to perform the methods described during the seminar.
thinkahol *

Undersea cauldrons replicated life's ingredients - life - 27 May 2010 - New Scientist - 0 views

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    "THE precursor of life may have learned how to copy itself thanks to simple convection at the bottom of the ocean. Lab experiments reveal how DNA replication could have occurred in tiny pores around undersea vents." "To test this theory, Mast and Braun put these ingredients into tubes 1.5 millimetres long. They used a laser to heat one side of the water and create thermal convection. Sure enough, they found that the DNA doubled every 50 seconds (Physical Review Letters, vol 104, p 188102)."
Sam M

How Tornadoes Are Predicted - 0 views

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    How tornadoes are predicted days or hours in advance is not easy. There are numerous ingredients that cause tornadoes and go into predicting the possibility for tornadoes.
thinkahol *

How ancient plants and soil fungi turned Earth green - 0 views

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    ScienceDaily (Nov. 2, 2010) - New research by scientists at the University of Sheffield has shed light on how Earth's first plants began to colonize the land over 470 million years ago by forming a partnership with soil fungi.
Mark Harding

How to control a herd of humans - science-in-society - 04 February 2009 - New Scientist - 1 views

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    Fresh insights into why we conform to peer pressure could explain how despotic leaders bend people to their will
anonymous

How to Pick Up Free Internet On A Sailboat With Ultra Long Range Wifi - 0 views

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    How to pick up free internet with long range wifi antennas living on a boat.
Charles Daney

From butterfly to caterpillar: How children grow up - New Scientist - 0 views

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    In the past 30 years, a scientific revolution has completely transformed our understanding of babies and young children. Babies both know more and learn more than we would ever have thought possible, and we have recently begun to grasp the mechanisms by which they do this. I wrote The Philosophical Baby to try to show that thinking about childhood can help us answer deep questions about truth, imagination, love, consciousness, identity and morality. Without exaggeration, I believe it can tell us how we came to be human.
Skeptical Debunker

Sensitive nano oscillator can detect pathogens - 0 views

  • The researchers, led by professor of applied and engineering physics Harold Craighead, made a device just 200 nanometers thick and a few microns long with an oscillating cantilever hanging off one end. (A nanometer is one-billionth of a meter; a micron is one-millionth of a meter.) They identified exactly how to tune its sensitivity -- a breakthrough that could lead to advanced sensing technologies. The experiments detailed online Feb. 8 in Journal of Applied Physics show how these oscillators, which are nanoelectromechanical systems (NEMS), could one day be made into everyday devices by lining up millions of them and treating each cantilever with a certain molecule. "The big purpose is to be able to drive arrays of these things all in direct synchrony," said first author Rob Ilic, a research associate at the Cornell NanoScale Science and Technology Facility. "They can be functionalized with different chemistries and biomolecules to detect various pathogens -- not just one thing."
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    By watching how energy moves across a tiny device akin to a springing diving board, Cornell researchers are a step closer to creating extraordinarily tiny sensors that can instantly recognize harmful substances in air or water.
thinkahol *

Everything We Knew About Human Vision is Wrong: Author Mark Changizi Tells Us Why « N e u r o n a r r a t i v e - 0 views

  • Our funny primate variety of color vision turns out to be optimized for seeing the physiological modulations in the blood in the skin that underlies our primate color signals.
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    For theoretical neurobiologist and author Mark Changizi, "why" has always been more interesting than "how." While many scientists focus on the mechanics of how we do what we do, his research aims to grasp the ultimate foundations underlying why we think, feel and see as we do. Guided by this philosophy, he has made important discoveries on why we see in color, why we see illusions, why we have forward-facing eyes, why letters are shaped as they are, why the brain is organized as it is, why animals have as many limbs and fingers as they do, and why the dictionary is organized as it is.
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