evidence – Page 3 – Shamskm: A site to exchange knowledge and solutions

Climate Change Study Strengthens Link to Human Activities

By Guest PostDecember 5, 2012EnvironmentAntarctica, Arctic, atmospheric temperature, benjamin santer, berkeley lab, carbon dioxide, cfcs, chlorofluorocarbons, climate change, climate models, coolants, el niño, evidence, greenhouse gases, higgs boson, human factors, human influence, llnl, michael wehner, pacific decadal oscillation, phenomena, propellants, satellite data, simulations, southern oscillation, stratospheric temperature, tropospheric, tropospheric warming

Computer Models, Satellite Data Reveal Clearest Evidence Yet of Human Influence on Changing Temperatures

New research shows some of the clearest evidence yet of a discernible human influence on atmospheric temperature.

Published online in the Nov. 29 early edition of the Proceedings of the U.S. National Academy of Sciences, the study compared 20 of the latest climate models against 33 years of satellite data. When human factors were included in the models, they followed the pattern of temperature changes observed by satellite. When the same simulations were run without considering human influences, the results were quite different.

“We can only match the satellite record when we add in human influences on the atmosphere,” said Michael Wehner, a research scientist at Lawrence Berkeley National Laboratory (Berkeley Lab) Computational Research Division and a coauthor of the article, which involved colleagues from 16 other organizations and was led by Benjamin Santer, an atmospheric scientist at Lawrence Livermore National Laboratory (LLNL). (more…)

University of Toronto Study Demonstrates Impact of Adversity on Early Life Development

By Guest PostOctober 28, 2012Sciencebehavioural geneticist, biology, british columbia, childhood adversity, chris reaume, cifar, dna sequence, drosophila melanogaster, ebbd, Environment, enzyme, evidence, evolutionary biology, food, for, foraging gene, fruit fly, gene, gene robinson, human development, illinois, interaction, james burns, kindergartener, larvae, marla sokolowski, molecular genetics, Nature, neuroscience, pkg, pnas, pre programmed, protein, reproductive fitness, rna, rovers, sitters, tom boyce, toronto, transgenic manipulation, university

Study part of growing body of knowledge surrounding gene-environment interplay

TORONTO, ON – It is time to put the nature versus nurture debate to rest and embrace growing evidence that it is the interaction between biology and environment in early life that influences human development, according to a series of studies recently published in a special edition of the Proceedings of the National Academy of Sciences (PNAS).

“Biologists used to think that our differences are pre-programmed in our genes, while psychologists argued that babies are born with a blank slate and their experience writes on it to shape them into the adults they become. Instead, the important question to be asking is, ‘How is our experience in early life getting embedded in our biology?’” says University of Toronto behavioural geneticist Marla Sokolowski. She is co-editor of the PNAS special edition titled “Biological Embedding of Early Social Adversity: From Fruit Flies to Kindergarteners” along with professors Tom Boyce (University of British Columbia) and Gene Robinson (University of Illinois). (more…)

Finding Faults

By Guest PostSeptember 2, 2012Environment, Sciencecalvert formation, delaware, dgs, earthquake, eocene, evidence, fault surface, fault zone, finding faults, geologic record, geological survey, grooves and steps, magnitude, miocene, new castle, northern delaware, occurrence, parallel grooves, past earthquake, piney point formation, scott andres, sediment sample, slickensides, smyrna, university of delaware, virginia, well drilling, wildlife area, woodland beach

Delaware Geological Survey discovers evidence of past earthquakes

Delaware Geological Survey (DGS) scientists have uncovered hard proof of faults in northern Delaware, indicating the occurrence of earthquakes millions of years ago.

The geologic evidence turned up in sediment samples removed during a well-drilling project this summer from depths ranging 137 to 251 feet down in Smyrna and the Woodland Beach Wildlife Area.

“People have postulated that there are faults in this area,” DGS Senior Scientist Scott Andres said. “Now we have evidence of it.” (more…)

The Heart Rules the Head When We Make Financial Decisions

By Guest PostMay 27, 2012Culture, Economybarney dunn, decision, economic perspective, economic self interest, evidence, financial offer, financial sector, gut feelings, gut reaction, heart rate, lead researcher, pension schemes, psychological test, rational thought, ultimatum game, university of exeter

Our ‘gut feelings’ influence our decisions, overriding ‘rational’ thought, when we are faced with financial offers that we deem to be unfair, according to a new study. Even when we are set to benefit, our physical response can make us more likely to reject a financial proposition we consider to be unjust.

Conducted by a team from the University of Exeter, Medical Research Council Cognition and Brain Sciences Unit and University of Cambridge, the research is published in the journal Cognitive, Affective, & Behavioural Neuroscience.

The research adds to growing evidence that our bodies can sometimes govern how we think and feel, rather than the other way round. It also reveals that those people who are more in tune with their bodies are more likely to be led by their ‘gut feelings’. (more…)

Carbon from Martian Meteorites Not Evidence of Life

By Guest PostMay 25, 2012Sciencea j timothy jull, andrew steele, carbon, contamination, dead sea scrolls, evidence, geoscientist, keck foundation, life, life on earth, macromolecules, mars, martian basalts, martian history, martian life, martian meteorites, molecules, NASA, organic carbon, shroud of turin, university of arizona, viking

The findings provide insight into the chemical processes taking place on Mars and will help aid future quests for evidence of ancient or modern Martian life.

Carbon in some Martian meteorites came from Mars but not from life on Mars, according to new research from an international team that includes a University of Arizona geoscientist.

Molecules containing large chains of carbon and hydrogen – the building blocks of all life on Earth – have been the targets of missions to Mars from Viking to the present day.

Scientists have disagreed about how the organic carbon found in meteorites from Mars was formed and whether or not it came from Mars. (more…)

Tag Archives: evidence

Climate Change Study Strengthens Link to Human Activities

University of Toronto Study Demonstrates Impact of Adversity on Early Life Development

Finding Faults

The Heart Rules the Head When We Make Financial Decisions

Carbon from Martian Meteorites Not Evidence of Life