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Tag: "complexity" at biology news

CU study reveals why starling females cheat

...s," said Rubenstein. "It adds a whole new layer of complexity to the story."...

Modified mushrooms may yield human drugs

...ted gene lands in the mushroom chromosome, among a complexity of other factors, but researchers point out that the process of producing biopharmaceuticals is potentially faster and cheaper with mushrooms than conventional technologies. Unlike plants that have long growth cycles, "with mushrooms, we can use co...

A first -- Hebrew University scientist observes brain cell development in 'real time'

... Dr. Mizrahi, since "the structural and functional complexity of nerve cells remains one of the biggest mysterie...euroscience, and we now have a model to study this complexity directly." The results of Dr. Mizrahi’s groundbreaking work appeared in the online edition of Na...

How brain pacemakers erase diseased messages

...sive disorder and pain, according to Grill. The complexity of the brain -- in which nerves project in all directions and connect with one another to form multiple, looping networks -- makes studying how deep brain stimulation works a challenge, Grill said. Grill's team created a mathematical model of a no...

How to steer a moving cell

...nd his colleagues set out to better understand the complexity of signaling mechanisms within the cell that become de-regulated and allow cells which are usually static to begin migrating. The researchers hope to fully define the protein components of the compass to gain a better understanding of what direc...

World's leading scientists announce creation of 'Encyclopedia of Life'

...echnology is allowing science to grasp the immense complexity of life on this planet. Sharing what we know, we can protect Earth's biodiversity and better conserve our natural heritage." "For more than 250 years, scientists have catalogued life, and our traditional catalogues have become unwieldy," said...

DOE JGI sets 'gold standard' for metagenomic data analysis

...ed three simulated metagenomic datasets of varying complexity by mixing pieces of over one hundred already sequenced isolate organisms. This approach allowed us to quantify the fidelity of several data processing methods, since we could identify the correct answer by comparing the synthetic datasets to the corr...

MIT's ocean model captures diversity of underwater forests

...of a reductionist view. We often shy away from the complexity of the real world in our models and prefer to reduce things to the simplest case with fewest factors," said Follows, who went through a sort of conceptual evolution after collaborating with Chisholm for several years. "I finally said, 'Yes, real worl...

Genetic fingerprints identify brain tumors' origins

...Cancer Research. The finding adds a new layer of complexity to the quest to understand the causes of childhood brain cancers, according to senior author David H. Gutmann, M.D., Ph.D., the Donald O. Schnuck Family Professor of Neurology at Washington University School of Medicine in St. Louis and co-director o...

2 brains -- 1 thought

...ood. Has evolutionary pressure kept the structural complexity of such networks to a minimum - or could there have been other networks with an even simpler structure, yet possessing the same dynamics? Is it possible that many more networks fulfilling the same functional and structural conditions could have evolv...

Scientists find genes involved in the battle between Hessian flies and wheat

... The study represents a step in understanding the complexity of antioxidant defense responses during interaction between Hessian flies and wheat, he said. It may also be applicable to other insect-plant interactions. Hessian flies have been in the United States for more than 200 years, apparently accidental...

Mine runoff continues to provide clues to microbial diversification

...ools are playing a vital role in investigating the complexity of how bacterial consortia cooperate and compete in nature. In fact, ORNL mass spectrometry provided the ability to resolve and differentiate peptides that differ by as little as one amino acid. Nathan VerBerkmoes of the lab’s Chemical Sciences Di...

How appetite-stimulating brain cells work overtime during fasting

... on brain function." The findings emphasize the complexity of the feeding circuitry, which once "seemed so simple," wrote Charles Mobbs of Mount Sinai School of Medicine in an accompanying preview article. Researchers had thought that decreased levels of the fat-produced hormone leptin alone signaled the hyp...

New technologies coming too fast for Indian farmers

...etically modified crops has added another level of complexity to farming in the developing world, says a sociocultural anthropologist at Washington University in St. Louis. Glenn D. Stone, Ph.D., professor of anthropology and of environmental studies, both in Arts & Sciences, at Washington University in St...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

...ch to cloning antigens adds an additional layer of complexity to the process. It requires knowing which cellular marker, or class II human leukocyte antigen (HLA), serves as a restriction element for specific T cells. Researchers must clone this restriction element and other class II HLA and transfer them into ...

Scientists discover a new risk factor for Alzheimer's

...been associated with a different SNP pattern. That complexity would have obscured the SNP marker patterns that the researchers were tracking. The importance of this work is that it identifies a new player among the mechanisms causing Alzheimer's disease, St George-Hyslop said. "This will lead to the real end...

MIT's ocean model precisely mimics microbes' life cycles

...of a reductionist view. We often shy away from the complexity of the real world in our models and prefer to reduce things to the simplest case with fewest factors," said Follows, who went through a sort of conceptual evolution after collaborating with Chisholm for several years. "I finally said, 'Yes, real worl...

Does evolution select for faster evolvers?

It's a mystery why the speed and complexity of evolution appear to increase with time. For example, the fossil record indicates that single-celled life first appeared about 3.5 billion years ago, and it then took about 2.5 billion more years for multi-cellular life to evolve. That leaves just ...

Living view in animals shows how cells decide to make proteins

...boratory tissue culture," Garcia-Blanco said. "The complexity of alternative splicing necessitates its visualization as the decisions are occurring, because taking a cell out of its context shows only its current status and not how it arrived at that place." For instance, the splicing process can change even...

Power emerges from consensus in monkey social networks

...tructure is important because it can influence the complexity of interactions among group members. "When building a society, it is of utemost importance that signals be informative and any sources of ambiguity minimized," says Krakauer. "This requirement is reflected in the structure and function of communicat...

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