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Tag: "workings" at biology news

The transparent organism: EMBLEM and Carl Zeiss give labs a unique look at life

...sible to make three-dimensional films of the inner workings of living organisms at a much higher level of detail than ever before. One innovation of SPIM is the illumination of a sample from the side rather than along the traditional view of the microscope lens. This eliminates a problem that has plagued thr...

Poplar trees redirect resources in response to simulated attack

...'ve learned to use radiotracers to image the inner workings of the living human brain, we can now track biochemical and physiological processes within plants using these powerful imaging tools," said Richard Ferrieri, who leads Brookhaven's role in the research. "This enables us to study the effects of extern...

Nano-Probes Allow an Inside Look at Cell Nuclei

... but biologists may soon use it to watch the inner workings of a living cell like never before. Scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and Lawrence Livermore National Laboratory have developed a way to sneak nano-sized probes inside cell nuclei where...

Cerebral navigation: How do nerve fibers know what direction to grow in?

...tery. "Very little has been known about the inner workings of the cell that govern axon guidance," says Michael Greenberg, PhD, Director of the Neurobiology Program at Children's and senior author on both studies. "These studies begin to give insight into how the various steps of axon guidance are controlled...

DNA constraints control structure of attached macromolecules

...ision building supramolecular machines whose inner workings are governed by twisted strands of DNA. In a paper that has been accepted for publication in the Journal of the American Chemical Society, and posted on its Web site, Silverman and graduate student Chandrasekhar Miduturu begin with a piece of unfold...

High fidelity keeps human DNA assembly line humming

...niversity have made a major discovery on the inner workings of genetic coding, mapping out mechanisms of one of life's most elemental functions: RNA synthesis. Their work has crucial implications for how a normal cell forms a tumor and how a virus runs amok. The work is published in the May 13 edition of the...

UN successfully tests 'green' pesticide against locusts

...ision building supramolecular machines whose inner workings are governed by twisted strands of DNA. In a paper that has been accepted for publication in the Journal of the American Chemical Society, and posted on its Web site, Silverman and graduate student Chandrasekhar Miduturu begin with a piece of unfold...

Health costs soar as 60 million Americans classed as obese

...ision building supramolecular machines whose inner workings are governed by twisted strands of DNA. In a paper that has been accepted for publication in the Journal of the American Chemical Society, and posted on its Web site, Silverman and graduate student Chandrasekhar Miduturu begin with a piece of unfold...

The making and breaking of microtubules

...g rapid growth and shrinkage is key to the diverse workings of microtubules in the cell. For the first time, researchers have revealed at molecular level the forms taken by transitional structures of tubulin (the protein from which microtubules are formed) during the assembly and disassembly of microtubules....

ORNL, UC Berkeley unravel real-world clues to Earth's mysteries

...mplex biological relationships and how these inner workings might apply on a grander scale. In a paper to appear today on Science Online, researchers from the Department of Energy's Oak Ridge National Laboratory and the University of California Berkeley describe a bacterial community that flourishes in the i...

Montreal researchers probe the genetic basis of memory

... New York University sheds light on the mysterious workings of the hippocampus, a region of the brain responsible for learning and memory. "Not all new information we acquire is stored as long-term memory," says Dr. Costa-Mattioli, a post-doctoral fellow in the laboratory of Dr. Sonenberg, who spearheaded th...

Bees, Brains and Addiction

..., such as food, can tell scientists much about the workings of the primitive portion of our brains that lead some of us to become addicted to tobacco, alcohol or other drugs. This region of the brain exerts such a powerful influence on the behavior of humans and other animals that a rat will work so tireless...

New protein vital for immune response is found in surprise location

... researchers to rethink previous notions about the workings of the human immune system. Researchers at UT Southwestern Medical Center said their findings may lead to new therapies aimed at preventing and treating viral diseases such as the flu, hepatitis, West Nile virus and SARS. The study is available onli...

Energy management in cells may hold key to cancer defense

...mily of enzyme proteins that play key roles in the workings of most animal cells. He has focused much of his research on the AMP-activated kinase (AMPK) which responsible for managing energy within cellular pathways. "A cell's energy level is critical to its survival," explains Witters, who likens a low-en...

Nanoscale method for investigating living systems

...nipulation, imaging and understanding of the inner workings of cells. The specks are known as quantum dots or inorganic semiconductor nanocrystals. Measuring in millionths of a millimeter, these dots are so small that the addition or removal of electrons changes the properties of the dot. The team, including...

Purdue's gold nanorods brighten future for medical imaging

...ide range of biological imaging to study the inner workings of cells and molecules. Findings are detailed in a research paper that appeared online last week in Proceedings of the National Academy of Sciences. The paper was written by researchers in Purdue's Weldon School of Biomedical Engineering and the Dep...

Scientists observe how a close bond activates the immune system

... molecular scale. The study sheds new light on the workings of T cells, the body's most specific and potent line of defense against viruses, bacteria, and other pathogens, says Dr. Dustin who is also an investigator in the molecular pathogenesis program at NYU's Skirball Institute of Biomolecular Medicine. ...

Scientists map one of biology's critical light-sensing structures

...ear quest by biologists to drill down to the inner workings of how plants, fungi and bacteria use light to guide their development. It will likely spur a rush by scientists to capitalize on the new knowledge and may one day lead to such things as plants whose growth, flowering and death can be precisely mani...

Nano springs eternal; Protozoan 'engine' posts nano records

... was Anton van Leeuwenhoek who first described the workings of a nano machine. He observed the rapid contraction of a stalk tethering the cell body of a tiny protozoan, Vorticella convallaria, to the surface of a leaf. Little did van Leeuwenhoek imagine that more than 300 years later, the biological spring th...

Are U.S. Flu Death Figures More PR Than Science?

... was Anton van Leeuwenhoek who first described the workings of a nano machine. He observed the rapid contraction of a stalk tethering the cell body of a tiny protozoan, Vorticella convallaria, to the surface of a leaf. Little did van Leeuwenhoek imagine that more than 300 years later, the biological spring th...

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