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bias in Biological News

NASA researchers find clues to a secret of life

... amino acids found in these meteorites, but the bias toward left-handed versions has been mostly ... considerably narrows down the search." If the bias toward left-handedness originated in space, it ... for sure it isn't from Earth. However, if the bias toward left-handed amino acids began in space, it ...

Gender biases in leadership selection during competitions within and between groups

... research has implicated that there is a gender bias when selecting leaders; preference for a male ... for Psychological Science, revealed that a gender bias occurred when selecting leaders in various group ... as leaders. There was also an evident gender bias during the investment exercise. In the intragroup ...

Caltech engineers build mini drug-producing biofactories in yeast

... pain relief, and hair growth acceleration. Other bias have shown anticancer, antioxidant, antimalarial, ... products. However, the natural plant sources of bias accumulate only a small number of the molecules, ... to extend their research to the production of bias that don't normally exist in nature. "If one ...

Viruses evolve to play by host rules, according to University of Pennsylvania researchers

... findings extend the translational theory of codon bias to the viral kingdom, demonstrating that the ... Moreover, the team found that the degree of codon bias varies across the viral genome. By comparing the ... team demonstrated that the regions of high codon bias in these viral genomes often coincide with ...

Gender roles and not gender bias hold back women scientists

... roles of women in the home and a negative bias in workplace support result in less career ... were prompted to investigate whether gender bias was at the root of the lower success rate of ... of application reviewers found that gender bias was not the cause. A thorough investigation of ...

Hearing changes how we perceive gender

... or feminine a person looks. Our vision can bias our experience of other senses, such as hearing, ... people were more likely to see a male face. (The bias did not occur when a face was paired with a pure ... is on the horizon? If sound can implicitly bias visual gender perception, then we need to ...

Game of two halves leads to brain asymmetry

... has an equal probability of migrating to the right or left side, but a bias in the direction of migration can be restored by adding extra Fgf8 to one ... that brain asymmetry takes is not critical for survival, but the strong bias towards one direction may be to ensure that all members of a population ...

Neural mechanisms of value bias in the human visual cortex

... New research demonstrates that bias toward a potentially more valuable outcome can influence how visual ... "These findings suggest that these brain regions may provide signals to bias visual processing in favor of more valuable stimuli, perhaps so that ...

Too few women scientists achieving academic leadership positions

... Building on the findings of a National Academy report entitled Beyond bias and Barriers, which attributes the lack of women in academic leadership ... educating the academic community about the insidious role of unconscious bias in decision-making. Furthermore, they point to the antiquated tenure ...

Old developmental pathways spawn revolutionary evolutionary changes

... in Science Magazine in 2005, suggested otherwise, hypothesizing that a bias toward queen-ness might occur earlier in life than previously believed, ... provisioning of the larvae, prior to pupation, serves to promote a caste bias in which a higher level of nourishment results in primarily gyne-destined ...

MU study finds connection between evolution, classroom learning

... not yet equipped to easily understand things like chemistry, mathematics or physics. Humans prefer to engage in peer relationships because of natural bias that helps them learn about and influence their peer groups. While the need to learn about others now comes naturally, mastering things like linear ...

Songbird study from CSHL, CCNY provides concrete measure of biology's impact on culture

... the song normally found in the wild. "I was more pleased than surprised with the experimental data," admits Mitra. "I came in with a strong bias that wild-type song culture would spontaneously emerge." His colleagues, the experimentalists, were careful to design the study to rule out potential ...

Penn biologists discover how 'silent' mutations influence protein production

... mRNA folding and associated rates of translation initiation play a predominant role in shaping expression levels of individual genes, whereas codon bias influences global translation efficiency and cellular fitness. ...

Tiny super-plant can clean up animal waste and be used for ethanol production

... environment. In other words, Cheng says, "Duckweed could be an environmentally friendly, economically viable feedstock for ethanol." "There's a bias in agriculture that all the crops that could be discovered have been discovered," Stomp says, "but duckweed could be the first of the new, 21st ...

Freezing kidney cancer: Hot treatment should be new gold standard for destroying small tumors

... borderline kidney function, may only have one kidney or multiple recurring tumors or do not have any other option, said Georgiades. "There may be a bias in the medical communityamong surgeons, primary care doctors and urologiststhat cryoablation works only for certain patients with small tumors. This ...

News from the March 2009 Journal of the American Dietetic Association

... for Calcium, Magnesium and Vitamin C in Four Ethnicities of Middle-Aged and Older Americans: The Multi-Ethnic Study of Atherosclerosis Weight bias among Dietetics Students: Implications for Treatment Practices. ...

February 2009 Geology and GSA Today media highlights

... than 5 millimeters. In some of the world's best studied and stratigraphically expanded Cretaceous-Paleogene mass extinction boundary sections, this bias prolongs the recovery period by about seven million years, the duration that lithified rocks persist after unlithified diversities recover to ...

New computational technique allows comparison of whole genomes as easily as whole books

... will evolve and get better and better as experts come in and tell us where we have gone wrong. The math is there, now we have to remove the human bias as much as possible." In addition to applying the method to comparative genomics, Kim expects it will help in grouping and finding relationships ...

Warmer climate causing huge increase in tree mortality across the West

... inject more greenhouse gases back to the atmosphere. This in turn could cause even higher levels of atmospheric warming. "In ecology there's a bias toward understanding how things grow," Harmon said. "But my studies are mostly on how things die and decompose, and that's what's happening here. ...

News from the November 2008 Journal of the American Dietetic Association

... featured in the November 2008 Journal of the American Dietetic Association include: Cognitive, Behavioral and Social Factors are Associated with bias in 9-11 Year Old Schoolchildren's Dietary Questionnaire Self Reports Providing Obesity Prevention Counseling to Children During a Primary Care ...

Men are better at detecting infidelities

... to detect their partner's infidelity," says David Buss at the University of Texas, Austin. He adds that it demonstrates a "fascinating cognitive bias that leads men to err on the side of caution by overestimating a partner's infidelity". Andrews suggests that women have countered this by becoming ...

Caste in the colony

... insects than seeds are more likely to become larger individuals (queen>large worker>small worker). However, genetic differences also contribute and bias the larva's developmental pathway. Even once caste is determined, nutritional, social (colony size), and genetic factors all contribute, but in ...

Using novel tool, UD researchers dig through cell 'trash' and find treasure

... Meyers noted. "The approach will enable us to analyze RNA degradation products at a very large scale, identifying millions of molecules without bias and with a substantial reduction in labor and efforts." The "holistic" technique will enable scientists to examine several regulatory pathways at ...

Fish cancer gene linked to pigment pattern that attracts mates

... in the Morris lab, which used the same tests to show that female swordtails are strongly attracted to males with dark vertical bars. To avoid any bias the female might have for a particular side of the tank, Fernandez then switched the males. Two days later, he conducted the trials again, this time ...

Baseball diamonds: the lefthander's best friend

... left-handed and most right fielders were left-handed," Peters says. "That has changed at least since the late sixties." There's even a bias toward the lefthander in ballpark design. Right field in most parks (just think of Yankee Stadium and Fenway Park) is usually shorter than left ...

'Mind's eye' influences visual perception

... The research was published online June 26 by the journal Current Biology . "We found that imagery leads to a short-term memory trace that can bias future perception," Joel Pearson, research associate in the Vanderbilt Department of Psychology. and lead author of the study, said. "This is the ...

Known genetic risk for Alzheimer's in whites also places blacks at risk

... Alzheimer's or even prevent it, according to Sachs-Ericsson. Sachs-Ericsson's team theorized that small sample sizes coupled with possible racial bias in measuring cognitive functioning may explain why some studies have failed to detect the effect of the APOE epsilon 4 allele on cognitive decline ...

Ocean life under threat from climate change

... Richardson, from The University of Queensland and CSIRO, and his co-author, Dr Elvira Poloczanska from CSIRO in Hobart. "There is an overwhelming bias toward land-surface studies which arise in part because investigating the ocean realm is generally difficult, resource-intensive and expensive," they ...

Fluorescent nano-barcodes could revolutionize diagnostics

... diseases and trace these back to the genes responsible." He said the technology is based on a non-enzymatic process which reduces the chance of bias and is more robust in a variety of different conditions. Dr Dimitrov is currently working on the next step, which will be new nano-barcodes that ...

Green tea compounds beat OSA-related brain deficits

... significantly better in a water maze than the rats that drank plain water. GTP-treated rats exposed to IH displayed significantly greater spatial bias for the previous hidden platform position, indicating that GTPs are capable of attenuating IH-induced spatial learning deficits, wrote Dr. Gozal, ...

Insects evolved radically different strategy to smell

... is that these are ion channels directly gated by odors," says Vosshall. "But the dominant thinking in the field may have reflected an experimental bias that aimed at proving a more elaborate scheme." The ion channels don't resemble any known ion channel on Earth, says Vosshall. They are composed ...

Detecting the snake in the grass

... snakes, indicating that there may be a universal human ability to visually detect snakes whether there is or is not a fear factor based on a learned bias or experience. Lobue and DeLoache emphasize that their study does not prove an innate fear of snakes, only that humans, including young children, ...

Recovering from a mass extinction

... taxonomic and ecological recovery of communities after the Permian extinction event can be examined more accurately, and the problems of geological bias are largely avoided. The Permian extinctions occurred in three waves, the largest being at the boundary between the Permian and Triassic periods, ...

Cognitive, genetic clues identified in imaging study of alcohol addiction

... prefrontal cortex and the parietal cortex often form cooperative circuits, and this study found that high activity in both is associated with a bias toward choosing immediate rewards. The frontal and parietal cortex are also involved in working memory -- being able to hold data in mind over a ...

Closeness is not a problem: New ways to handle spatial dependencies in species distributions

... meaning that points closer together in space are more likely to have similar characteristics than those further apart, a fact which may critically bias model predictions. A new study in the journal Ecography by an international team of researchers now offers a landmark review of the approaches ...

October Geology and GSA Today media highlights

... such as the Waukesha Lagersttte of Wisconsin. The Eramosa Lagersttte is not the product of exceptional preservation in an atypical environment, a bias claimed for many post-Cambrian Lagersttten, and may provide a more reliable, balanced measure of Silurian marine life than previously available. ...

Prolonged respiratory problems for oil spill clean-up volunteers

... spills, in combination with appropriate hygiene regulations, is strongly recommended. The cross-sectional design of the study and possible recall bias of the questionnaires respondents leaves the question of reversibility question an open line of inquiry. To address this possibility, the ...

Study reveals predation-evolution link

... fossils, preserved than others, said Huntley. There is less diversity to be observed when there are fewer fossils to study. Perhaps this sampling bias affects our ability to find samples with high predation intensities as well. Now we will try to pick this apart, said Huntley. We can test these ...

Innovative civil engineering application promises cleaner waters

... for particular methods of controlling stormwater runoff, explains Kevin Young, research associate at CGIT. Young adds that all too often personal bias has led to cookie-cutter solutions to very complex stormwater management needs, resulting in poor control of the pollutants. A widely used, ...
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