Smithsonian perspective: Biodiversity in a warmer world
... organisms will be favored as their ranges expand into temperate areas. Few empirical
studies provide specific answers to help us choose conservation and ... fellowship with the Smithsonian's GEO network in 2000-2002 and Condit cite empirical
work by colleagues at the Smithsonian and others:
In a 2001 Science ...
Cause and affect: Emotions can be unconsciously and subliminally evoked, study shows
... at Tillburg University in The Netherlands have uncovered the first empirical
evidence to suggest humans do not need to be aware of the event that ... negative mood was induced without a specific emotion involved. These empirical
findings are the first to demonstrate that specific emotions can be evoked ...
22nd Congress of the European College of Neuropsychopharmacology, Sept. 12-16, 2009, Turkey
... in treating disorders such as anxiety, mania, depression, schizophrenia, dementia or neurological and addictive disorders in the most rational and empirical
Neuropsychopharmacological research provides data that are required to develop drugs, which act on specific receptors within a ...
Policy transparency key to saving world's fisheries
... world. Nearly 1,200 evaluations were used in the study. The responses of the surveyed experts were compared to, and found to be in accordance with, empirical
data, supporting the validity of the data obtained in the study.
The results of this global survey showed that 7% of all coastal states carry out ...
Rumbaugh's theory links positions of Wilson, Skinner
... the larger evolutionary framework, suggesting a 'kind of sequencing that can provide the springboard to a generation or more of conceptualizing and empirical
research,'" Naour wrote. "It remains to readers whether you are inspired by Haywood to draw upon that springboard progressing 'from simple to ...
You don't call, you don't write: Connectivity in marine fish populations
... now, the question of just how far and wide these larval fish travel, or disperse, has been the subject of much theoretical modeling, but very little empirical
evidence. After about two weeks, juvenile clownfish find a comfortable-looking sea anemone, set up housekeeping, and settle in with a mate for the ...
Honest crabs, power to the hungry, nice mice and clever meerkats: News from the American Naturalist
... members that are most desperate to reach a particular destination, or are most indifferent as to whether or not the group breaks up." There's some empirical
evidence to back up the model. Studies have shown that food deprived fish move to the front of shoals, presumably to steer the group toward food.
Darwin's legacy in 21st century biology
... is the foundation of all modern biology. The invited speakers provide a comprehensive Darwinian and historical framework for current theoretical and empirical
research. As such, the symposium emphasizes how the work of Charles Darwin continues to inspire biology in the 21st century and beyond. This program ...
NAU research ties tree mortality trends to climate warming
... in the Southwest we have an opportunity to lower tree mortality rates by thinning forests and restoring surface fires," Ful said. "There is strong empirical
evidence that these actions improve the resilience of trees to drought and insect pathogens, and protect them from severe stand-replacing wildfires." ...
Timetable for Puget Sound restoration suffers setback
... urban growth and its associated untreated runoff.
"An analysis of sediment core samples retrieved over several decades provides us with empirical
evidence that environmental regulations have had a positive impact on the overall water quality of the Puget Sound," said PNNL marine chemist and ...
Winter brings flu, summer brings bacterial infections
... the physical environment and the incidences of pathogenic infection could aid in infection prevention interventions or the selection of optimal empirical
antimicrobial therapy," the researchers wrote in their report.
The link between this type of bacterial infections and heat, the study suggested, ...
Ocean growing more acidic faster than once thought
... the authors said. Scientists have long predicted that higher levels of atmospheric carbon dioxide would make the ocean more acidic. Nevertheless, empirical
evidence of growing acidity has been limited.
The new study is based on 24,519 measurements of ocean pH spanning eight years, which represents the ...
Issues at intersection of climate change and health impact global well-being
... communication has therefore emerged as a key discipline in preventive medicine. The papers by Jan Semenza et al. and Ed Maibach et al. provide both empirical
data and theoretical background on climate change communication, grounded in the insights of health communication.
Much public health activity ...
Networks of small habitat patches can preserve urban biodiversity
... Our study empirically shows that the network modeling approach is a good candidate for developing such a tool" said Dr. Bodin.
The study combines empirical
field studies of birds with theoretical and statistical modelling. A range of bird species were surveyed in various green areas of different size and ...
AGU journal highlights -- Oct. 16, 2008
... point to increasing human-generated greenhouse gas and aerosol concentrations as the dominant cause of global surface warming after 1967, while some empirical
analyses suggest that solar variability accounts for as much as 69 percent of warming seen in the past 100 years and 25 percent of ...
Duke team explains a longtime visual puzzler in new way
... at different speeds.
Purves and colleagues found that the lag time increased in a nonlinear manner as the moving object increased its speed. The empirical
relationship between moving objects in a simulated world and their projection onto a simulated retina accurately predicted the function derived in ...
Study reveals specific gene in adolescent men with delinquent peers
... for adolescents raised in high-risk families while finding little or no such link in those from low-risk families. As a result, we now have genuine empirical
evidence that the social and family environment in an adolescent's life can either exacerbate or blunt genetic effects."
Beaver and research ...
New tool to speed cancer therapy approval available
... For example, in the anti-cancer agent pathway, researchers are encouraged at the outset to address the following three questions:
Is the empirical
basis for attributing clinical potential (alone and/or in combination) convincing?
Does the envisioned clinical need justify expenditure of ...
Lighting research center develops framework for assessing light pollution
... illuminance on the vertical sides of the box," said Brons. "The measurements were then used to calculate the three aspects of light pollution. These empirical
results are the first ever published that we know of showing how much light leaves a sample of outdoor lighting installations, measured in terms of ...
Climate change could be impetus for wars, other conflicts, expert says
... of Europe, associated with loss of harvest and population decline," Scheffran said. "Riots and military conflicts became more likely, as a recent empirical
study has suggested."
However, as history has demonstrated, humans are quite capable of adapting to changing climate conditions as long as those ...
Dying frogs sign of a biodiversity crisis
... Revolution, when the human population exploded. Or, we might be seeing the start of it right now, Wake said.
But no matter what the start date, empirical
data clearly show that extinction rates have dramatically increased over the last few decades, Wake said.
The global amphibian extinction is a ...
The emerging scientific discipline of aeroecology
... (Boston) -- In the history of science and technology, there is an infrequent combination of empirical
discoveries, theories and technology developments converge that make it possible to recognize a new discipline. Past examples include marine biology, ...
Sounding out heart problems automatically
... stethoscope-wielding physician.
Their approach is based on a mathematical analysis of the sound waves produced by the beating heart known as empirical
Mode Decomposition (EMD). This method breaks down the sounds of each heart cycle into its component parts. This allows them to isolate the sound of ...
Climate change hastens extinction in Madagascar's reptiles and amphibians
... movement is a predicted response to increased temperatures, and other studies, including that of J. Alan Pounds in Costa Rica, have provided some empirical
evidence of how tropical animals respond to climate change. Raxworthy's research, however, is distinguished by the number and diversity of species, ...
Does fishing on drifting fish aggregation devices endanger the survival of tropical tuna?
... Fishermen hold empirical
knowledge that tuna aggregate under floating objects, such as lengths of old rope, pieces of wood, or even large marine mammals. There is still no ...
Monarch butterflies help explain why parasites harm hosts
... to their hosts. The study, published in the early online edition of the journal Proceedings of the National Academy of Sciences, provides the first empirical
evidence in a natural system of whats called the trade-off hypothesis.
Parasites have to harm their host to replicate and be transmitted, said ...
Model successfully predicts large river system fish diversity
... system, said Fagan, co-principal investigator of the study. This 'pattern oriented modeling,' in which we simultaneously reproduce a wide variety of empirical
results using a single model fit, is a powerful approach for analyzing complex systems.
Using the neutral model, in which ...
Absinthe uncorked: The 'Green Fairy' was boozy -- but not psychedelic
... was alcoholism, Lachenmeier indicates.
Today it seems a substantial minority of consumers want these myths to be true, even if there is no empirical
evidence that they are, says Lachenmeier. It is hoped that this paper will go some way to refute at least the first of these myths, conclusively ...
Scientists show that streams are critical to preservation of oceanic coastal zones
... Grimm has established a conceptual basis for including human choice and action in theory of urban ecosystem dynamics. Grimm and her counterparts empirical
work on biogeochemistry, species distribution and abundance, and designed aquatic ecosystems in cities have revealed that many ecological features ...
Researchers discover the structural alphabet of RNA
... Major. "Compared to the thermodynamic approach, our algorithms make less false positives and negatives and predict structures that are closer to the empirical
data in the case of sequences for which it is available. The improvement is due to the fact that NCMs incorporate more base-pairing context-dependent ...
Open-access tropical conservation journal launches
... and environmental sciences in which the publication of a journal like TCS will play a major role in integrating new theoretical, methodological, and empirical
findings that will reach broad audiences and contribute to more effective and innovative policies of managing and sustaining tropical ecosystems." ...
Map is first to track global human influences on ocean ecosystems
... the data globally, some information is lost."
Micheli and her colleagues already are fleshing out one corner of their modeled world by gathering empirical
data for marine ecosystems of the California Current region; the current flows south from Alaska along the coasts of Washington, Oregon, California ...
Should children be permitted to get genetic testing for BRCA 1/2 mutations?
... anxiety, distortion of family relationships, interference in normal development of self-concept and feelings of unworthiness.
Despite this debate, empirical
data to support either argument are lacking, especially in the setting of families affected by BRCA mutations, Bradbury concluded.
Why do so many species live in tropical forests and coral reefs?
... the abundance of a species. In a Nature paper in 2006, they presented a theory for the time scales of neutral evolution that is in good accord with empirical
"Mathematical modeling is increasingly vital in the biological sciences, and the key challenge is to uncover the simplicity underlying ...
Predators and parasites may increase evolutionary stability
... our understanding of mating system evolution in both plants and animals, says Janette A. Steets, lead author of the study. Although theoretical and empirical
evidences are just beginning to accumulate, they largely point to an enemy effect on mating systems and demonstrate that enemies can create dynamics ...
Claims of sex-related differences in genetic association studies often not properly validated
... claims were insufficiently documented or spurious, and reporting of statistical interaction tests was rare, the authors write.
We hope that our empirical
evaluation will help sensitize clinicians, geneticists, epidemiologists, and statisticians who are pursuing subgroup analyses by sex or other ...
Does God answer prayer? ASU research says 'yes'
... effect. Conducting a meta-analysis takes into account the entire body of empirical
research on intercessory prayer. Using this procedure, we find that prayer ... Social Work Practice, a disciplinary journal devoted to the publication of empirical
research on practice outcomes. It is widely recognized as one of the most ...
Traditional models underestimate extinction rates
... But few scientists have actually tested the accuracy of these models with empirical
data. To do this, Drake first manipulated the available food sources in ... results underscore the importance of bolstering extinction models with empirical
validation--and of accounting for population density--to accurately ...
Male circumcision overstated as prevention tool against AIDS
... to be much less important as a deterrent to the global AIDS pandemic than previously thought. The author, John R. Talbott, has conducted statistical empirical
research across 77 countries of the world and has uncovered some surprising results.
The new study finds that the number of infected prostitutes in ...