power 2 5

Tag: "power" at biology news

Researchers use multiphoton microscopy to watch chromosomes in action

...ies). Unlike other methods, which lack penetrating power and can damage the specimen, MPM delivers crisp, clear images, even in thicker tissue samples like Drosophila salivary glands. The research was ultimately possible thanks to the unique composition of the fruit flies' so-called polytene cells, gian...

Plutonium or greenhouse gases? Weighing the energy options

...dney Ewing, who has analyzed just how much nuclear power would need to be produced to significantly reduce ...implications of the associated increase in nuclear power plants. Ewing will present his findings Oct. 23 as the Michel T. Halbouty Distinguished Lecturer at ...

Stormy days ahead for coral reefs

... sea-bed. How coral assemblages respond to the power of the sea is essential for understanding the natural distribution of coral types on present-day reefs as well as for projecting how they will change in response to more violent or frequent storms, the researchers say. "Coral reef experts have l...

Parental genes do what's best for baby

...ld development. In fact, rather than a parental power struggle, the researchers suggest that certain offspring characteristics can only be explained by their theory of genetic cooperation. “When we are conceived we inherit two copies of every gene ?one set from our mother and one from our father,?exp...

Immune cell communication key to hunting viruses, Jefferson immunologists show

... response, which is amazing," he says. "That's the power of killer cells. "We always suspected that recognition of other peptide MHCs, like self-peptide MHCs derived from normal proteins, could facilitate recognition, but it was not clear until now how this happened." Dr. Sykulev notes that this finding...

Master planners in brain may coordinate other areas' roles in cognitive tasks

...ers in the word "dog." Much of the human brain's power derives from what Petersen calls "flexible configuration of processing systems," or the ability to take one stimulus and process it in different ways to produce different feedback. Different parts of the brain have specialized abilities that can cont...

Bacteria could make new library of cancer drugs that are too complex to create artificially

...conventional organic synthesis, with the synthetic power of biology, to assemble complex and synthetically difficult structures. It could be particularly valuable for generating analogues of streptorubin B with all the promise that holds for the development of new anti cancer drugs"...

K-Staters design and build a low-cost remote sensing tool for environmental studies

...emely reliable and easy to use," he said. "Battery power eliminates emissions and messy fuels that could compromise the data collection systems and greatly reduces vibration." According to Schinstock, the remote sensing tool will meet a need shared by thousands of environmental scientists worldwide. For j...

Large-scale genomics project will hunt genes behind common childhood diseases

... will be large enough to provide great statistical power to our research," added Dr. Hakonarson. "We will be able to characterize genotypes and health conditions over a sizable population of children. This project will help to set the standard for identifying biological links to childhood diseases." ...

Pollutant haze heats the Arctic

...of particulates, mostly sulfates from coal-burning power plants and smelters and from fossil fuels burned by automobiles and other sources in cities. The Arctic haze, noted by explorers more than 200 years ago, resembles that seen during winter inversions in the Salt Lake City area. Both areas are desert...

Researchers attack tumor cells by exploiting dependency on sugar metabolism

... Normal cells produce most of the ATP they need to power cellular functions through an oxygen-dependent process known as oxidative phosphorylation. In contrast, cancer cells commonly switch to what is known as a "glycolytic phenotype," producing ATP through a process that can occur in the absence of oxygen...

Speeding the search for elusive chromosomal errors

... Conventional genetic tests have limited resolving power in detecting many chromosomal arrangements. In karyotyping, chromosomes are stained and examined under microscopes, but only larger rearrangements are visible, such as extensive deletions, or the presence of an extra chromosome, as occurs in Down syn...

Movie spies on malaria parasite's sneaky behavior

... questions that remain to be answered. But the power of using imaging to follow parasite movements inside live, infected animal hosts is clear. "It is now possible to follow in real time and quantitative terms the parasite in its host, and that is something we were only dreaming of a few years ago," sa...

Snakes' virtual glasses, leopard spots and all-optical transistors

...ices built in the past have been far too large and power hungry to be practical. Physicists at the Queen's University in Belfast appear to have solved the problems with a prototype optical amplifier that is both small and low power. The key to the device is a layer of gold film pierced by an array of holes...

UCI scientists find chlorine may contribute to ozone formation

...drocarbons and nitrogen oxides from automobile and power plant emissions, contributing to the complex chain of reactions that leads to ozone formation. The primary cause of urban ozone is the reaction of hydroxyl radical (OH) with hydrocarbons and nitrogen oxides. OH is a highly reactive molecule made of o...

Neural stem cell gene plays crucial role in eye development

...evny also stressed that this study illustrates the power of mouse genetics. "Right now, we are only in the hypothetical stage of therapeutic application of this work, but we finally have the genetic tools to actually test our hypothesis." Other authors that contributed to the study are members of the UN...

Surprise finding for stretched DNA

...mple, the DNA molecule might provide the energy to power future nanomotors." ...

When the going gets tough, slime molds start synthesizing

...Medical Institute investigator at Salk, "shows the power of a combined approach involving bioinformatics, enzymology, structural biology and genetics to get at the heart of why organisms exploit natural chemicals to survive and prosper in challenging ecosystems." When slime molds starve, they collectivel...

Research highlights how bacteria produce energy

...ically engineering the bacteria to further enhance power production. Researchers from the Universidad Nacional Autonoma de Mexico announce that they have genetically engineered the bacterium Bacillus subtilis to directly ferment glucose sugar to ethanol with a high (86%) yield. This is the first step in ...

Magnetism and mimicry of nature hold hope for better medicine, environmental safety

...g instruments that will work fast and require less power to operate, he says. It also holds promise for improving public safety and homeland security efforts, Picraux says. The method could aid in more quickly and accurately detecting and analyzing dangerous chemicals if they were intentionally introduce...

1 2 3 4 5 6 7 8 9 10