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Tag: "set" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

.... Now, we have evidence that these patterns may be set early on, perhaps even before birth, said lead author Thomas OConnor, Ph.D., associate professor of Psychiatry at the University of Rochester Medical Center. This is another piece in the unfolding mystery of just how much the prenatal environment may...

Nicotine rush hinges on sugar in neurons

.... “Our studies fill a major gap in the field and set a new paradigm,” said Lin Chen, associate professor of molecular and computational biology at USC. Many existing theories, which do not consider sugar’s role, are probably incomplete, Chen said. The debate over how signals pass from the outside o...

CSIRO scientists join fight to save 'Tassie devil'

...ress in understanding and managing the disease and set an agenda for future research and management. “The aim is to stop the disease in it tracks and we want to bring our experience of controlling infectious diseases to the research community involved to help achieve this,” Dr Hyatt said. A chem...

A new plant-bacterial symbiotic mechanism promising for crop applications

...rhizodium might use to gain entry to the plant and set off nodulation. The first observation was that... of “crack zones” comparable with wound areas. The set of results obtained from subsequent work, seeking to identify the genes involved in producing the un...

Research team identifies new Alzheimer's gene

...at autopsy. This study resulted in a comprehensive set of high-quality data to be made publicly available...e researchers believe that deposition of this data set in the public domain will open a new era in Alzheimer research. When a scientist suspects a particul...

In mice, drug protects against diabetes and atherosclerosis

...ned to receive the drug or an inert substance. One set of mice was put on a high-fat "western" diet at five weeks of age; half received the inhibitor drug. A second group of animals ate the western diet for eight weeks, at which time they developed severe atherosclerosis. Then they were started on the dr...

Ancient DNA traces the woolly mammoth's disappearance

...s, shows that the conditions for extinction can be set up long before the actual extinction event.”...

Brightening prospects of using fluorescent nanotubes in medical applications

...the most buoyant layer from the centrifuge, let it set for a while and then put it back in the ultracentrifuge for another 12 hours, the liquid separates into a number of distinct layers. The topmost layer has a purple color and, when analyzed, proves to contain a surprisingly uniform population of the b...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...ears. “The number of people aged 60 and over is set to rise by more than a half by 2030 and 80 per cent of all skin cancers occur in this age group” says Dr Dolan. “It is important that we plan ahead so that we are able to care for patients with skin cancer without compromising other chronic dermat...

Massive herds of animals found to still exist in Southern Sudan

...stacles. On Jan. 17, 2007, Fay, Elkan and Marjan set out to replicate the surveys of the early ’80s. Using the same methodology, the same flight lines, the same flight height, they began an aerial survey of three of the four blocks surveyed earlier: Boma National Park, Jonglei region and Southern Natio...

Study shows lizard moms dress their children for success

...ory and field experiments to tease apart a complex set of interactions involving hormones, genetics, social interactions, behavioral strategies, and predators. Previous studies by Sinervo and his collaborators have described three different behavioral strategies that correlate with throat color in side-b...

CT scan reveals ancient long-necked gliding reptile

...hotograph of the two specimens, rather they were a set of thin slices that had to be processed to obtain information about the animals. Even then, no single slice contained the entire skeleton. Post-scan processing produced an amazingly clear, if somewhat flattened, image of a small reptile with a long ...

Small, self-controlled planes combine plant pathology and engineering

...tonomous plane can circle around the waypoint at a set altitude, with about a meter variation up and down. Second, the autonomous technology enables us to have coordinated flight with multiple aircraft. In other words, we can have two aircraft sampling pathogens at the same time but at different altitude...

New findings challenge established views on human genome

...nternational research consortium today published a set of papers that promise to reshape our understandin...at the human genome consists of a relatively small set of discrete genes, along with a vast amount of so-called junk DNA that is not biologically active. ...

Exploring the dark matter of the genome

...hromatin. "Historically it was called junk. We set out to see if there was any information in that junk," says Chris Smith, formerly in Berkeley Lab's Life Sciences Division and now an assistant professor of bioinformatics at San Francisco State University. "We used a pipeline of computer programs to...

Cancer stem cells similar to normal stem cells can thwart anti-cancer agents

...les. The researchers identified a very small, rare set of resting cancer stem cells in the lung cancer samples that looked and behaved much like normal adult lung tissue stem cells. Both the cancer and normal stem cells were protected equally by multiple drug resistance transporters, even if the bulk of ...

Staphylococcus aureus hides out in cells

...nd and the Institute of Food Research, Norwich, UK set out to uncover what S. aureus (6850) did inside human lung epithelial cells (A549) using an in vitro model. They found that shortly after S. aureus entered the lung cells, the bacteria’s gene expression profile dramatically changed: gene expression f...

Weizmann Institute scientists develop a general 'control switch' for protein activity

... first stage of the method consists of preparing a set of genetically engineered proteins (called a “libr...tiveness of the method – it turns out that a small set of engineered proteins is needed to find the ones that respond to the drug. With their greater resou...

Human genetic 'deserts' are teeming with significant life

...ten in a tissue-specific manner previously unknown set of exons [the regions of DNA within a gene that ar...d. “The notion that mammalian transcriptomes [the set of all messenger RNA molecules produced in a population of cells] are made of a swarming mass of dif...

Scientists close in on missing carbon sink

...k" in the north. Stephens and his collaborators set out to test how well the models captured carbon sinks, focusing in particular on estimates produced by a recent international study into global carbon exchange known as TransCom. They turned to flasks of air collected by research aircraft over variou...

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