Tag: "correlation" at biology news

Human brain works heavy statistics learning language

...and lead author of the study. "There is a powerful correlation between what our brains are able to do and what language demands of us." Newport and Richard Aslin, professor of brain and cognitive sciences, began by looking at how people are able to recognize the division between spoken words when spoken language...

Traditional fishing destroys corals - new research

...iggerfishes, from the sea. They also found a clear correlation between the density of starfish, the amount of algae covering the reef and the degree of fishing activity. For example, around the more heavily-fished islands, the researchers concluded that as starfish predators declined by almost two-thirds, starfi...

Rb2 expression could play vital role in ovarian cancer Temple University researchers find

...rotein was decreased or lost, there was an inverse correlation to the aggressiveness of the cancer," says Giuseppina D'Andrilli, Ph.D., a research fellow in the Sbarro Institute and the study's lead author. "This is consistent with the theory that if the Rb2 protein is still present in the tumor tissue, the agg...

Inflammation, hypertension are focus of major new MCG research program

...ach to treating hypertension. "We know there is a correlation between low levels of pro-inflammatory mediators, ...sk for heart attack. "Right now, there is a lot of correlation if you look at the literature between C-reactive proteins, interleukin-6, correlations between a lot...

Phytoplankton may stimulate uptake of CO2

...cial periods," said Hales. "There is definitely a correlation between the amount of CO2 in the atmosphere and global warming, but the relationship is hard to define." Hales' role in the study involved developing apparatus to sample the ocean water and measure the concentrations of various chemicals, such as nit...

Predicting cancer patient survival with gene expression data

...alysis of the microarray data. They calculated the correlation of each gene in the microarray data with patient survival to generate a list of "significant" genes and then used these genes to identify tumor subtypes. Creating a list of candidate genes based on clinical data, the authors explain, reduces the chan...

Freeing Nemo: Aquarium owners releasing non-native fish could endanger marine ecosystems

...umbers. Indeed, the researchers found a compelling correlation between how commonly ornamental marine species are imported and how often they were sighted. Another commonly sighted non-native was yellow tang, a bright yellow oval fish that is the most commonly imported species of the U.S. aquarium trade. In con...

Proven method of bone analysis may clarify human origins

...ubspecies level," Kimbel said. "There is a strong correlation between the landmark data and the DNA data. "This is of interest because it has become commonplace in paleoanthropology to claim that morphological data from great apes and monkeys are not faithful guides to phylogeny, because it has been very diffic...

Predators and human health

...at populations of deer mice, for instance, grow in correlation with plentiful acorn crops, the relative role of predators in influencing abundance in the species is still at a nascent stage. Furthermore, what is really more important than a rodent species' population per se, explains Ostfeld, is to understa...

Statistical technique helps researchers gain more information from a single data run

...t would otherwise be difficult to study because of correlation and time-dependency issues. "The new thing here is...ssible because of the strong dependence of data or correlation of data," said Brani Vidakovic, associate professor at the Georgia Institute of Technology's School ...

Dinosaur fossil record compiled, analyzed

...Dinosauria. She also analyzed for congruence the correlation between the fossil record and family tree relationships. Heathcote found some of the clades both complete and congruent, while others are poor in both ways. "The whole Dinosauria fossil record I would say is moderately good, which was a surprise, bec...

Researchers adapt RNA interference to study gene function on a large scale

...ce screen for genes that act in that pathway. This correlation would allow you to match the compounds with the proteins they affect in a much more useful way." Similarly, said Perrimon, researchers can use RNAi to selectively target genes in pathogenic bacteria, to determine which ones affect the bacteria's abil...

Do we perceive using 'mindsight'?

...erception, he argues, because there seems to be no correlation between how long it takes someone to feel the change, and the time taken to identify what it is. The two sometimes happened almost simultaneously, while at other times the subjects did not report seeing any difference until seconds after they were aw...

Study finds wide attitude gap on wolves

...s and farmers rely less on academic training, this correlation may not reflect cause-and-effect results. Attitudes about monetary compensation for pet and livestock loss were also measured, with the surprising results that payments did not improve individual tolerance towards wolves; further, bear hunters who ha...

Primates trade smell for sight

... and the Weizmann Institute in Israel have found a correlation between the loss of olfactory receptor (OR) genes, which are the molecular basis for the sense of smell, and the acquisition of full trichromatic color vision in primates. While humans, nonhuman primates, and mice have roughly the same number o...

Ancient DNA mutations permitted humans to adapt to colder climates, UCI researchers find

...the higher latitudes. "This explains the striking correlation between mtDNA lineage and geographic location that we still see today in indigenous populations around the world." It also explains why people with a certain ancestral history may be more susceptible to some diseases. "When heat and cold are managed...

Farmed salmon more toxic than wild salmon, study finds

...oil fed to farm-raised salmon. They found a strong correlation between the toxicities of chow and salmon, suggesting toxins are passed into the salmon from their feed. Jeffrey Foran (University of Michigan), David Carpenter (University at Albany), M. Coreen Hamilton (AXYS Analytical Services Ltd.), Barbara K...

New findings can help parents looking to combat number of kids' sick days

...ationships among all the variables, and intraclass correlation analysis was used to test the reproducibility of r...ing salivary cortisol; and the intraclass correlation coefficient for initial and post-6-wk measures of salivary cortisol was r = 0.66. The intraclass cor...

Symbiotic fungi promote invasion into diverse plant communities (Rudgers et al.)

...erse communities to resist invasion and reduce the correlation between diversity and community productivity. Their long-term field experiment using invasive tall fescue grass confirms this model, demonstrating that endophytic fungi contribute more to the dynamics of plant communities than previously supposed....

Anorexia may cause emphysema, study suggests

...eviously published animal studies have suggested a correlation between malnutrition and emphysema. But until the advent of CT, the diagnosis of emphysema relied on the pathologic examination of lung tissue. According to Dr. Coxson, a study conducted by Jewish physicians in the Warsaw Ghetto during the Nazi occup...

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