Tag: "finds" at biology news

Protein-hungry cells 'go fishing,' report Purdue biologists

... through a single hole in the membrane. So once it finds its first hole, it has to go fishing for another."...r then essentially swings the tail around until it finds what it needs - the second receptor that can admit the rest of the colicin. "This two-receptor appro...

Six reporters reach the 'pinnacle of excellence'

...ists test his DNA for hundreds of diseases. Duncan finds out that he has mutations that make him vulnerable... a maternal ancestor who once lived in France, and finds out that he is a relatively close relative of the geneticist who is helping him research his genetic...

Alcohol exposure in pre- and early post-natal stages may cause insulin resistance

...ng offspring to toxic effects of EtOH. A new study finds that alcohol exposure during early development -- though not necessarily during pregnancy -- may program the offspring for insulin resistance and glucose intolerance later in life. A New Study The authors of the study, "Whole Body Insulin Re...

JCI table of contents, January 2, 2004

...PANYING COMMENTARY: East meets West: an herbal tea finds a receptor AUTHOR CONTACT: Mitchell A. Lazar University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA. Phone: 215-898-0198 Fax: 215-898-5408 E-mail: lazar@mail.med.upenn.edu View the PDF of this commentary at: https://www.the...

Pew report finds GM insects may offer benefits, but clear regulatory oversight is lacking

...uld use to conduct a regulatory review, the report finds the major concern regarding regulation is the absence of a clear articulation of how transgenic insects will be regulated. While a number of laws could potentially apply to GM insects, federal regulators have not indicated if they would regulate GM i...

Comets spread Earth-life around galaxy, say scientists

...Earth into interplanetary space. Professor Napier finds that collisions with interplanetary dust will quickly erode the ejected boulders to much smaller fragments and that these tiny, life-bearing fragments may be driven out of the solar system by the pressure of sunlight in a few years. The solar system ...

A lost world: Two previously unknown dinosaurs discovered in Antarctica

...ghly unusual circumstancesinvolved in making their finds and the significance of the findsto other dinosaur research. NSF is an independent federal agency that supports fundamentalresearch and education across all fields of science andengineering, with an annual budget of nearly $6 billion. NSFmanages the...

Ribozyme package effective against hepatitis B virus

...PAA cassette package is released into the cell and finds its way to the cell nucleus, where the active ribozymes are produced. The ribozymes destroy the viral RNA's ability to produce proteins by cleaving, or cutting, the viral RNAs, rendering them useless. Proteins are critical to virus replication. First...

Laboratory rat gene sequencing completed

...han change along the human branch. Also, the study finds that approximately one-fourth of the human genome ...s carry two X chromosomes and males one. The study finds less mutation in the X chromosome than in chromosomes equally divided between males and females. A ...

East African artifacts support evolution of symbolic thinking in Middle Stone Age

New finds from an open-air archaeological site in the Sereng... 45,000 years ago, though none of the Loiyangalani finds have been precisely dated as of yet using advanced dating techniques. Presenting the paper are J.C. ...

Fish no exception to trend in marine-organism disease

...hout charge at http://www.plos.org ). The report finds the rate of disease increasing in some taxa, such as in turtles, mammals, mollusks and urchins, but declining in fish. However, says Jessica Ward, a Cornell doctoral student in ecology and evolutionary biology and lead author of the published study,...

New proteomics core at OHSU will speed discovery process

...elp us cut the spots. The (robot) head moves over, finds the spot and pokes a hole in the gel." After the proteins are broken down at the 2DiDx workstation, the "few dozen to few hundred" peptides are sent to the mass spectrometer. There, high-voltage electrostatic charges and a pump flowing at 200 billi...

Busy sequencing technique saves money and time

...orts through the maize of genetic information and finds predicted sequences. "Normally, you get one 600 to 700 base pair sequence in a reaction, but under certain conditions, we've figured out how to get more than one sequence out of a single sequencing reaction," said Brent. "In most cases, people woul...

Doctor's neckties: a reservoir for bacteria?

... at the New York Hospital Medical Center of Queens finds that nearly half of neckties worn by medical personnel harbor bacteria that can cause disease. They report their findings today at the 104th General Meeting of the American Society for Microbiology. "Studies such as this remind us about what we may...

Two dinosaurs from Africa give clues to continents' split

...e scientific paper describing the two new dinosaur finds are Sereno, Jeffrey Wilson of the University of Mi...t relative of Rugops and other abelisaurids. These finds provide fresh evidence about when Africa, Madagascar, South America and India finally split from eac...

Biologists discover nerve activity, not just genetics controls kinds of neurotransmitters produced

...eurotransmitters are expressed when the nerve cell finds its target." It is not yet clear how activity affects neurotransmitters in the adult nervous system, but Spitzer thinks there is a good chance activity will play a similar role there as well. "Often the processes we see in the embryonic nervous syste...

New study confirms process leading to disorder causing male characteristics in women

(June 22, 2004) - Bethesda, MD -- A woman finds herself with excessive facial hair, obesity, menstrual abnormalities, infertility, and enlarged ovaries may have polycystic ovary syndrome (PCOS), an unfortunate condition thought to be caused by excessive secretion by the ovaries of androgen, a horm...

Early dexamethasone exposure has long-term neurodevelopment, neuroendocrine effects

...ening novel environment. Conclusions This study finds that an early exposure to a tapering dose of dexamethasone has long-lasting effects on neurodevelopment and neuroendocrine function in the male rat. These findings raise concerns about maladaptive behavioral strategies that may be subtle and not reco...

Summer in the South: Kudzu and oriental bittersweet

Midsummer finds many places in the southeastern United States engulfed in kudzu and other nonnative invasive plants. Forest Service researchers bring a variety of approaches to this problem. Forest Fragmentation - SRS researcher Kurt Riitters and collaborators fr...

When sun's too strong, plankton make clouds

...ty of California, Santa Barbara (UCSB). The study finds that in summer when the Sun beats down on the top layer of ocean where plankton live, harmful rays in the form of ultraviolet (UV) radiation bother the little plants. When they are bothered, or stressed, plankton try to protect themselves by producin...

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