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Tag: "seeks" at biology news

Study investigates 'divorce' among Galapagos seabirds

...een found in other birds. But, often the female seeks a divorce after a few breeding seasons. Since males significantly outnumber females in the colony studied, there are plenty of bachelors available if the female has a wandering eye. “Our study population has 50 percent more males than females, c...

Ancient retrovirus sheds light on modern pandemic

.... In fact, this emerging area of research, which seeks to better understand modern infections by studying ancient viruses, is known as "paleovirology." "Ultimately," said co-author Malik, "if we want to understand why our defenses are the way they are, the answers inevitably lie in these ancient viruses ...

DNA repair proteins monitored at double-strand break

...hers used an enzyme called I-PpoI, which naturally seeks certain DNA areas to cut. The investigators modified I-PpoI so that they could better control when the enzyme moves into the nucleus and cleaves the DNA. The team then used a biochemical technique called chromatin immunoprecipitation to collect and i...

Corals that can fight global warming may one day help fragile reefs

...bbean, Philippines, Australia and East Africa that seeks to understand how rising ocean temperatures (which are monitored with high-resolution satellite detectors) are related to lethal coral reef epidemics. The warm temperatures that have been occurring worldwide as a result of global warming appear to ...

UC Davis researchers use heated nanoprobes to destroy breast cancer cells in mice

... with scientists from Triton BioSystems in Boston, seeks to solve this problem. The experimental system uses bioprobes created by wedding magnetized iron-oxide nanospheres to radiolabeled monoclonal antibodies. The bioprobes are cloaked in polymers and sugars that render them nearly invisible to the bod...

How trees manage water in arid environments

...s about water supplies, Brown said. "This research seeks to characterize the explicit relationship between water availability and photosynthetic activities of the vegetation. This paper is the first step in that process, and it illustrates the seasonal characteristics of the forest vegetation-water relatio...

Darwin's famous finches and Venter's marine microbes

...nomics (also known as environmental genomics) that seeks to examine genomic snapshots taken directly from the environment. "Metagenomics allows us to sample the 99 percent of all bacteria that won’t grow in the lab," explains Manning. "GOS opens a huge window into biological and genomic diversity and, ...

Male contraception: One door opens, another closes

...mpound as an attachment to a modified hormone that seeks out the testes, researchers have found that a low dose is both safe and effective in rats. Without this targeting mechanism, only much higher doses are effective--but they are harmful to the body's organs. Dr. Diana Blithe of the U.S. National In...

Nanotech tools yield DNA transcription breakthrough

... Institute of Microbiology has two parts: One part seeks a fundamental understanding of the machine; the other uses that understanding to develop new classes of antibacterial agents that function by inhibiting the bacterial version of the machine. "There is a direct information flow from our basic research...

Researchers find that bumblebees' flower choice matters

...ing backwards to get at the same question Flanagan seeks ?where the bees have been. He divides each of the plants in the garden to create an exact copy of each population. Imagine having 20 sets of identical twins, he says, and dividing them into two groups that are exact copies of one another. That is...

Ghost protein leaves fresh tracks in the cell

...cells, and those flies died. Dubreuil's research seeks to clarify how these proteins function in different cells. The hope is that researchers may one day create therapeutic molecules to compensate for genetic lesions in diseases such as hereditary anemia, Duchenne muscular dystrophy, cardiac arrhythmia ...

Experimental RNA-based drug kills prostate cancer cells effectively and safely

...encing RNA, launches its effect. The silencing RNA seeks out and binds to the RNA for a specific cancer-causing protein, called PLK1, and tags it for destruction. This eventually leads to the death of the cancer cell. The researchers first tested the drug in culture dishes containing cancer cells. They f...

UC Riverside psychologist explores human perception, finds 'wow factor'

...ormance," Rosenblum said. That research, he said, seeks a better understanding of how human hearing is affected by silent objects. His projects are all motivated by theoretical questions rather than a quest for a particular application, Rosenblum said, but real-world considerations are important. "We dis...

Study in Science holds promise for a new approach to drug therapy

...Rs on the outside of cells, the new class of drugs seeks to influence related signaling on the inside. Early studies suggest that the newly discovered "drug candidates" can provide better control of pathways involved in pain relief, inflammation and heart disease, while leaving healthy functions in place. ...

New DNA 'fingerprinting' technique separates hemp from marijuana

... suitable for local Minnesota agriculture. Weiblen seeks to screen a wider range of Cannabis cultivars to refine the technique. He is also working to identify regions of the Cannabis genome responsible for drug content in marijuana. If enough can be learned about the genome, it may one day be possible to p...

'Bad' enzymes may wear white hats after stroke

... the brain. Some current stroke treatment research seeks ways to inhibit MMPs to minimize their danger ?but this new study shows that a different approach may be required in the long run. "We have mostly thought of MMPs as being 'bad,'" said senior author Eng H. Lo of the Neuroprotection Research Laborat...

Powerful new tool for studying brain development

...ne Expression Nervous System Atlas (GENSAT), which seeks to document the expression of all genes in the nervous system. GENSAT is supported by the National Institute of Neurological Diseases and Stroke (NINDS), and a partnership of 14 institutes and centers of the National Institutes of Health (NIH), which...

NIH launches comprehensive effort to explore cancer genomics

...ome Project. The Cancer Genome Atlas Pilot Project seeks to identify genetic mutations in the DNA code that are specifically associated with the type of cancer being sequenced. In addition, the Cancer Genome Characterization Centers will work to identify other types of larger-scale genomic changes, such as...

Federal grant funds research on novel HIV therapy

...ett, Ph.D., both of Children's Hospital, this core seeks to define linkages among the basic science experiments, the animal model experiments to establish pharmacology responses and the human trials designed to assess safety and activity. The basic science projects of this four-year grant are already pro...

Forsyth scientists find three bacteria associated with oral cancer

...erous conditions toward oral cancer. The team also seeks to study the relationship of oral bacteria to a variety of cancers and diseases. According to Goodson, "This research is important for the questions it raises. Do oral bacteria contribute to oral cancer? Can oral bacteria be used as indicators of di...

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