Group items tagged

"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"

The goals of this effort is to design and implement a configurable and extensible semantic eScience framework. Configuration will require some research into accommodating different levels of semantic expressivity and user requirements from use cases. Extensibility will be achieved in a modular approach to the semantic encodings (i.e. ontologies) performed in a community setting, i.e. an ontology framework into which specific applications all the way up to communities can extend the semantics for their needs.

Our over-arching goal is to develop science curriculum materials that will close the widely disparate levels of achievement that occur in impoverished communities, both urban and rural.

The goal of the Global Square is to perpetuate and spread the creative and cooperative spirit of the occupations and transform this into lasting forms of social organization, at the global as well as the local level.

Try over 600 free online courses from The Open University. Available from introductory to advanced level, each takes between 1 and 50 hours to study. Complete activities to assess your progress and compare your thoughts with sample answers.

" Of course, skeptics hope that their efforts aid in advancing science education.1 In spite of these efforts, survey data from several sources suggests that paranormal belief and pseudoscientific thinking continue to be commonplace.2 Skeptics often use these findings to reinforce arguments for more science education. Their argument is based upon the largely untested assumption that increased science knowledge reduces the number of paranormal beliefs an individual holds. However, this assumption may not be valid. Andrew Ede recently argued that science education may do little to raise the level of rational thinking and may, in fact, actually deter it!"

HOW do people acquire high levels of skill in science, business, music, the arts and sports? This has long been a topic of intense debate in psychology. Research has shown that intellectual ability matters for success in many fields - and not just up to a point.

The Hacker Academy takes its members on an impressive journey from the hacker's perspective. THA delves into the psyche of a hacker: what they want, how they will get it - and an "it takes one to know one mentality". Our philosophy at The Hacker Academy is that members will be armed with the knowledge necessary to practice, implement, and deploy what they have learned immediately and effectively. All training modules are available 24/7 and are perfect for any skill level.

The Health System Measurement Project tracks government data on critical U.S. health system indicators. The website presents national trend data as well as detailed views broken out by population characteristics such as age, sex, income level, and insurance coverage status.

"For this study, the investigators bred mice lacking TRPV4 or administered a drug to deactivate it. In the absence of TRPV4, white cells turned on a set of genes that consume energy to produce heat, rather than storing the energy as excess fat. This "thermogenic" process normally occurs in brown or beige fat (commonly called "good fat"), which is found mostly in small animals and human infants to protect against cold. When the TRPV4-deficient mice were put on a high-calorie diet for several weeks, they did not become obese, and their level of fat cell inflammation and insulin resistance was lowered. "We have identified a target that, when inhibited, can activate beige adipose tissue and suppress inflammation," said Spiegelman."

"A study conducted by researchers at cancer centers across the US has found a link between omega-3 fatty acids and an increased risk of prostate cancer. Omega-3 fatty acids are found in fish including salmon, trout, and fresh tuna, and in fish oil supplements. The study, published online July 10 in the Journal of the National Cancer Institute, looked at blood levels of omega-3 fatty acids in some of the men enrolled in the Selenium and Vitamin E Cancer Prevention Trial (SELECT) of more than 35,000 men over age 50 in the US, Puerto Rico, and Canada. The study did not collect information on the men's diets. Therefore, it's not clear whether the omega-3 fatty acids in their blood came from food or from supplements."

"computerbasedmath.org is the project to perform this reset. We're building a completely new math curriculum with computer-based computation at its heart, while campaigning at all levels to redefine math education away from historical hand-calculating techniques and toward real-life problem-solving situations that drive high-concept math understanding and experience."

"Education for everyone at all levels of interest and knowledge."

Here at OpenCog, we're creating an open source Artificial General Intelligence framework, intended to one day express general intelligence at the human level and beyond.

"(PhysOrg.com) -- Imagine being able to drop a toothpick on the head of one particular person standing among 100,000 people in a stadium. It sounds impossible, yet this degree of precision at the cellular level has been demonstrated by researchers affiliated with the Johns Hopkins University Institute for NanoBioTechnology. Their study was published online in June in Nature Nanotechnology."

ScienceDaily (Dec. 1, 2010) - Many coastal wetlands worldwide -- including several on the U.S. Atlantic coast -- may be more sensitive than previously thought to climate change and sea-level rise projections for the 21st century.

Free, research level articles in a variety of scientific fields. When one remembers that research journals often go for hundreds of dollars per year in hardcopy form, a resource like this is appreciated even more, in this time of widespread long term unemployment in the pure and applied sciences.

ScienceDaily (Feb. 28, 2011) - A brain imaging study at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory reveals a subtle difference between ordinary obese subjects and those who compulsively overeat, or binge: In binge eaters but not ordinary obese subjects, the mere sight or smell of favorite foods triggers a spike in dopamine -- a brain chemical linked to reward and motivation.

The supply of secure, clean, sustainable energy is arguably the most important scientific and technical challenge facing humanity in the 21st century. Rising living standards of a growing world population will cause global energy consumption to double by mid-century and triple by the end of the century. Even in light of unprecedented conservation, the additional energy needed is simply not attainable from long discussed sources these include nuclear, biomass, wind, geothermal and hydroelectric. The global appetite for energy is simply too much. Petroleum-based fuel sources (i.e., coal, oil and gas) could be increased. However, deleterious consequences resulting from external drivers of economy, the environment, and global security dictate that this energy need be met by renewable and sustainable sources. The dramatic increase in global energy need is driven by 3 billion low-energy users in the non-legacy world and by 3 billion people yet to inhabit the planet over the next half century. The capture and storage of solar energy at the individual level personalized solar energy drives inextricably towards the heart of this energy challenge by addressing the triumvirate of secure, carbon neutral and plentiful energy. This talk will place the scale of the global energy issue in perspective and then discuss how personalized energy (especially for the non-legacy world) can provide a path to a solution to the global energy challenge. Daniel G. Nocera is the Henry Dreyfus Professor of Energy at the Massachusetts Institute of Technology, Director of the Solar Revolutions Project and Director of the Eni Solar Frontiers Center at MIT. His group pioneered studies of the basic mechanisms of energy conversion in biology and chemistry. He has recently accomplished a solar fuels process that captures many of the elements of photosynthesis outside of the leaf. This discovery sets the stage for a storage mechanism for the large scale, distributed, deployment of solar energy. He has b

Researchers have found a pharmaceutical way to clear some of the cognitive fog that results from a sleepless night. In a new study using lab mice, researchers corrected the memory problems in sleep-deprived mice through a drug that suppressed levels of a certain enzyme in a brain region called the hippocampus.