general 2 6

Tag: "general" at biology news

Scientists narrow the time limits for the human and chimpanzee split

...vide valuable clues for understanding -- in a more general sense -- the evolution of intelligent life." Walker, a paleoanthropologist and Evan Pugh Professor of Biological Anthropology and Biology at Penn State, has discovered and studied fossil hominids and other primate species that pertain to the questio...

UK sperm donor crisis

... of a possible decline in the semen quality in the general UK population." The potential gap between supply and demand has led senior author Dr Jane Stewart, consultant gynaecologist and specialist in reproductive medicine at the Newcastle Fertility Centre at LIFE, to call for a change of tactics in recruit...

How E. coli bacterium generates simplicity from complexity

...ly few physiological functions. This is possibly a general principal in many, if not all, species." Palsson and his colleagues at UCSD, postdoctoral fellows Christian L. Barrett and Christopher D. Herring, and Ph.D. candidate Jennifer L. Reed, created a computer model of an E. coli cell based on the experim...

Bacteria that cause tooth decay able to survive without important biochemical pathway

...r from tooth decay. Considered by the U.S. surgeon general to be a "silent epidemic," tooth decay is a chronic childhood disease that affects five times more children than asthma and is estimated to result in 51 million lost school hours. In an effort to understand how best to combat the tooth-decaying prop...

Mapping alcohol brain damage

...useful for many neurological diseases. "It's got general applicability to neurological diseases, because most neurological diseases also exhibit regional selectivity of pathology." Professor Dodd said researching proteins was the next step as that would tell them why some cells have impaired function. ...

Sleeping sickness parasite shows how cells divide their insides

...l. "Basal bodies in particular and centrosomes in general have been implicated in the biogenesis of a number of membrane-bound organelles," said Warren. "It prompted us to study further their role in Golgi duplication." Warren's group has identified a new cellular structure, distinct from the basal body, ...

'Computer-chemistry' yields new insight into a puzzle of cell division

...olph initially knew the kinase's and phosphatase's general topographies as well as the locations of their active sites. "But it was literally a guessing game trying to find which residues might be important in this interaction," he said. "Somehow these two large complicated molecules had to also interact sp...

Targeted drug delivery achieved with nanoparticle-aptamer bioconjugates

...tigens, present on the surface of cancer cells. In general terms, therapeutic nanoparticles (~50 ?~250 nanometer) are specially designed delivery vehicles that can encapsulate a drug within them and release the drug in a pre-determined and regulated manner which can vary from a sudden release to a slow relea...

Researchers use 'trickery' to create immune response against melanoma

...tigens, present on the surface of cancer cells. In general terms, therapeutic nanoparticles (~50 ?~250 nanometer) are specially designed delivery vehicles that can encapsulate a drug within them and release the drug in a pre-determined and regulated manner which can vary from a sudden release to a slow relea...

Bees solve complex colour puzzles

...ur work on humans, may enable us to understand the general principles by which any visual system (natural or artificial) can construct useful behaviour from ambiguous sensory information. 'One long-term aim of our research is to exploit this understanding to build seeing robots that, like the bee with its ...

Study finds that nutritionally enhanced rice reduces iron deficiency

...t malnutrition," said Dr. Robert Zeigler, director general of IRRI. "These results are especially important for rice-eating regions of the world where more than 3 billion of the world's poor and undernourished live." The iron-dense variety of rice used in the research (known technically as IR68144-3B-2-2-...

Scientists develop protein-sequence analysis tool

...gineering," Shanklin said. "We developed CPDL as a general tool for extracting and displaying relevant functional information from such data sets." Also, since CPDL does not require that a protein's structure be known -- just its amino acid sequence -- it can be applied to studies of proteins that reside in...

UCSD study finds anthrax toxins also harmful to fruit flies

... a charged topic in the research community and the general public. "Anthrax is still a hot subject because of its possible use as a weapon of bioterrorism and remains a health threat in third world countries," Guichard said. "Anthrax infections can be cured by antibiotics when detected early. But after a ce...

3D ultrasound device poised to advance minimally invasive surgery

... less time and, in some cases, without the need of general anesthesia, he said. Duke developed the first 3D...cope probe down the throat, a method that requires general anesthesia. "If physicians instead used the laparoscopic ultrasonography imager, they could monitor...

Rare Tibetan antelope listed as endangered

... less time and, in some cases, without the need of general anesthesia, he said. Duke developed the first 3D...cope probe down the throat, a method that requires general anesthesia. "If physicians instead used the laparoscopic ultrasonography imager, they could monitor...

New male contraceptive clears hurdle

...l reassurance." Dr. R. S. Sharma, deputy director general of the Indian Council of Medical Research (ICMR), concurs that the safety results were "very satisfactory." The ICMR is working to arrange study sites throughout India, beginning with Jaipur, Ludhiana, Udhampur, and India's capital New Delhi. Three d...

Feinstein researchers identify intelligence gene

...sociated with schizophrenia, may also be linked to general cognitive ability. The study is published in the M... of them to be significantly associated with lower general cognitive ability in carriers of the risk variant compared with non-carriers in two independent grou...

Microbiology text tells stories, offers online resources

A new general microbiology textbook aimed at undergraduate students comes with not one, but two online resources. Written by eminent scientists with practical teaching, textbook writing and research experience, Microbe, will engage students in the learning proce...

Alcoholism, smoking and genetics among Plains American Indians

...d smoking have a high rate of co-occurrence in the general population. Yet little is known about the co-morbidity of alcoholism and smoking among American Indians. In the March issue of Alcoholism: Clinical & Experimental Research , researchers examine patterns of alcohol and tobacco use among Plains ...

Evidence for omega 3 fats less conclusive than we thought, say experts

...against heart disease. UK guidelines encourage the general public to eat more oily fish, and higher amounts are advised after a heart attack. Researchers analysed 89 studies (48 randomised controlled trials and 41 cohort studies) to assess the health effects of long and short chain omega 3 fats on total mor...

1 2 3 4 5 6 7 8 9 10