Tag: "bottleneck" at biology news

Of lice and men

...000 years ago. Rogers and others have proposed the bottleneck may have occurred because of a mass die-off of ear...c volcanic eruption. Others believe the population bottleneck seen in human genes happened because only a small group of human ancestors left Africa in the second...

NIH makes award to UNC for Genome Fingerprint Scanning program

...ng tool will allow researchers to overcome a major bottleneck that has hampered their capacity to make full use of the vast information generated by sequencing dozens of genomes," said NCRR Director Judith L. Vaitukaitis, M.D. "This is the equivalent of being able to harness a whole library of information with...

New approach studying protein structure could advance drug development

...y take weeks, if not months to complete--causing a bottleneck in data collection and analysis. Furthermore, high quality crystal structures are tough to attain, and only a limited number of proteins have documented crystal structures of the protein with and without a ligand present. "There is no other techni...

An evolutionary road less traveled

...ic analyses can't distinguish between a population bottleneck and a founding event, the authors used simulations to calculate the amount of population reduction required to completely eliminate mtDNA diversity, arriving at "not more than two unrelated females" and "perhaps even only one." Linguistic studies sug...

Siemens Medical solutions pledges $1.5 million to accelerate clinical cancer research

... nationwide--is a major factor contributing to the bottleneck that now limits the translation of cancer-related discoveries to patients. Young physicians who would like to pursue careers in clinical research often find themselves faced with overwhelming debt from medical school. Consequently, they choose to g...

Erotic images, gore cause temporary 'blindness'

...asic effect. "We think that there is essentially a bottleneck for information processing and if a certain type o...s captures attention, it can basically jam up that bottleneck so subsequent information can't get through," Zald said. "It appears to happen involuntarily." Previ...

Requirement for high-level mental processing in subliminal learning

... rapid succession, has been shown to result from a bottleneck in high-level processing (such as decision making and memory encoding) but does not affect perceptual and semantical processing. In the new work, published in Current Biology, Dr. Aaron Seitz and colleagues examined whether learning can occur for sti...

Health of coral reefs detected from orbit

...ll Resolution covers the world every three days, a bottleneck for global monitoring could be data processing," Dekker concludes. "However satellite sensors measuring sea surface temperature such as Envisat's Advanced Along Track Scanning Radiometer (AATSR) can be applied to prioritise reefs that are subject to ...

Faster method to create antibodies for disease research

...arch are slow and laborious and pose a significant bottleneck to proteomics research as they can take months of effort. This research offers a potential solution that could produce antibodies in just weeks. Antibodies are vital to the study of proteins as they can bind specifically to a protein of interest and ...

Picking particles faster than one at a time

... to choose hundreds of thousands of particles is a bottleneck in the process of single-particle reconstruction." Automatic particle-picking methods have been devised to meet this challenge, but until now even the best yield more than 30 percent false positives -- either poor-quality images of particles or some...

Scientists make first step towards 'holy grail' of crystallography

...on of high quality crystals has long posed a major bottleneck for X-ray crystallography. This problem has become increasingly acute with the advent of structural genomics and proteomics which aim to determine the structures of thousands of proteins. Protein crystallography plays a major role in this understandi...

Genetic evidence shows colonialists pushed orang-utans to brink of extinction

...pulations that the genetic signature of the recent bottleneck may have overshadowed any previous population fluctuations. "The results of the study underscores the need to act now to protect the long term survival of the species. The animals still possess enough genetic diversity to stabilise if immediate acti...

Diabetes research yielding breakthrough success

...ients for up to five years. However, a significant bottleneck to treating large numbers of people with type 1 diabetes using this approach is that it takes pancreas cells from as many as three donor cadavers to supply enough for one patient transplant. "Injecting islet cells into people with diabetes has gotten...

Discovery of new molecular tools for biosynthesis could lead to advances in use of pectin

... the molecular tools to begin to break through the bottleneck of our understanding of pectin synthesis," Bacic said....

Ancient DNA provides clues to the evolution of social behavior

...uch more detailed information. ''You can't get the bottleneck time or the bottleneck size without both modern and ancient DNA,'' Chan explains. Social evolution Determining how the co...

ACS weekly press package — May 1st, 2006

...ay 24, 2006) A shortage of star anise is the major bottleneck in production of Tamiflu(oseltamivir), and a key reason for the shortage of Tamiflu that emerged in2005. Tamiflu is the drug being stockpiled around the world for use incombating a possible epidemic of avian influenza. Star anise has been usedfor cen...

Algae's protein 'tails' create motion and aid munching

...keep up with metabolic demand. The colony beat the bottleneck problem. Its increasing size is actually an advantage, allowing it to create a faster flow of nutrients."...

Scientists get best look ever at water-life connection

...he way of proteins trying to meet -- it would be a bottleneck in the process. And if it moved too fast, it couldn't connect with the protein at all. So I think this is nature's way of getting the interaction just right."...

Researchers find docking sites for glucocorticoid receptor and Hsp90

...cademy of Sciences, also uncorks an almost 15-year bottleneck in research caused by difficulties in deciphering the actions of a heat-shock protein known as Hsp90. Hsp90 belongs to a family of proteins called chaperones that help other proteins achieve and maintain their 3-D structure. Unlike most chaperones,...

This party doesn't start until the hosts arrive

...t while one cryptic parasite species experienced a bottleneck and probably came with the snails, the other was probably historically dispersed by migratory birds and could only establish in North America after the snail hosts arrived," adds Mark Torchin, of the Smithsonian Tropical Research Institute. "This is...

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(Date:12/11/2014)... Dec. 10, 2014  That blood pressure plays a role ... Hypertension – the medical term for high blood pressure – ... and the inflatable cuff that,s used in measuring blood pressure ... there,s nothing new about hypertension, its triggers and its effects. ... the condition and the best ways to treat it. ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4
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