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Tag: "black" at biology news

Salk researchers make fast strides towards understanding how our body controls walking

...rve what happens. "It allowed us to peer into this black box that is the central pattern generator," explained Lanuza. V1 neurons are so-called interneurons that relay electrical signals between nerve cells in the spinal cord,and motor neurons, the nerve cells that cause muscles to contract. To explore...

New method enables gene disruption in destructive fungal pathogen

...naria brassicicola. This destructive fungus causes black spot disease, leading to considerable leaf loss in such economically important crops as canola, cabbage, and broccoli. Genomic methods that allow the disruption of several thousand genes are needed because they allow high-throughput identification ...

Genes affecting blood pressure change as children become adults

...udy of more than 500 pairs of twins. The study of black and white identical and fraternal twins showed tha...ironmental influences became more important in the black twins over the four-year period, says Dr. Snieder. Non-shared influences could mean one twin starts...

'Scent of a woman' tells male redback spiders to find a mate

...ural selection." Redback spiders are relatives of black widow spiders and the marble-sized female redbacks dwarf the males, who are about the size of a grain of rice. While the females can live for up to two years, males live for only four to eight weeks. Initially, they remain on the web where they were ...

APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal

...at had gone on inside the lymph node was largely a black box." His team published their first work using th...n observed before in vivo. That has largely been a black box," he said. His group has explored the first days after a T cell encounters the one antigen it w...

Major obesity gene is 'lost in the shuffle'

...llow fur, while mice that lack the ASIP gene are black in color. The gene is widely expressed in tissues throughout the body, so it presumably plays a yet-to-be-defined role in additional biological processes. The ASIP gene has been characterized in fish, chickens, and various mammals, but no detaile...

Study finds how organs monitor themselves during early development

... methods and know-how to explore what she calls "a black hole": the process that transforms an embryonic ovary into an adult one. As the painstaking experiments reveal, the two cell types that interact in a feedback loop through a signaling pathway are 1) primordial germ cells and 2) intermingled cells,...

Mechanism identified for promising neurological drug

...cterizes the result of the experiment as "absolute black and white. Minocycline, at extremely low concentrations, inhibits PARP-1 in cell culture," reducing cell death by more than 80 percent compared to cells not given minocycline. The study authors conclude that it is very likely that minocycline's neur...

MIT 'seeing machine' offers hope to blind

... machine (the device tested in the pilot trial was black and white). With the color version, participants can explore a museum gallery containing some of Goldring's art. When a person gets close enough to a piece, the work is explained in Goldring's voice. ...

Fish virus in Northeast spreading to other fish species

...bullhead, rock bass, yellow perch, pumpkinseed and black crappie. VHSV causes fatal anemia and hemorrhaging in many fish species but poses no threat to humans or other animals. "The situation right now is that we still have fish dying in Lake Ontario," said Geoffrey Groocock, a postdoctoral associate a...

Tiny airborne particles are a major cause of climate change

...d that certain types of aerosols ?those containing black carbon ?can also decrease cloud cover, ultimately leading to a warming effect. This occurs as black carbon absorbs part of the sun's radiation, warming the surrounding atmosphere and reducing the diff...

HIV-1's high virulence might be an accident of evolution

...e new findings suggest the gene's role may be less black and white. "SIV Nef not only facilitates SIV persistence but may act as a 'rheostat,' allowing high enough levels of T cell activation to ensure sufficient viral replication and transmission, while at the same time preventing escalation of immune act...

WWF captures first-ever photo of wild rhino on Borneo

...irtually all of its body parts are valuable on the black market ?and loss of its forested habitat due to conversion of the land to other uses. WWF is working with the Sabah Foundation and the Sabah Wildlife Department to establish a "Rhinoceros and Orang-utan Research Program Center" in the Heart of Borneo...

Federal testing for mad cow disease a failure, law review editor says

.... In 2004, Creekstone Farms, a Kansas processor of black Angus beef with a large Japanese clientele, asked for permission to test its 300,000 cattle for BSE using a $500,000 testing site it had built to USDA specifications. But the agency ruled that the BSE test was licensed only for "surveillance" of ani...

UCLA study of community health project shows how group dynamics affect fitness, eating habits

...mmunity, where CVD rates are 20 percent higher for black men and 40 percent higher for black women compared to their white counterparts. And blacks are 1.8 times as likely to have diabetes as w...

Species unique to tidal marshes face threats

...ecialized glands that exude salt. Many are gray or black in color, which is believed to be an advantage because it matches the dark color of the soils often found in tidal marshes. Why endemic tidal marsh species seem to be largely restricted to North America--which has 24 of the worldwide total of 25--is ...

Higher levels of obesity associated with greater health risks

...0, 2.8 percent of all U.S. women, and 6 percent of black women reported measurements consistent with extrem...ng Asian and Pacific Islanders to 10 percent among black women. "In this diverse population-based sample of older women, we found that obesity was linked wit...

Plant diseases threaten chocolate production worldwide

...ree most important and damaging cacao diseases are black pod, frosty pod, and witches' broom. Black pod occurs worldwide and has the largest impact, while frosty pod and witches' broom are restricted to tropical America. "Frosty pod and witches' broom would devastate cacao production in West Africa, wher...

Tests may help answer questions about GMOs and allergies

...ted the corn from several types of corn borers and black cutworms. StarLink was approved by the EPA for use in animal feed and nonfood products in 1998. But in 2000, fragments of cry9C DNA were detected in taco shells and other food products. "Many people believed that StarLink was responsible for their a...

Study of gene transfer for erectile dysfunction shows promise

...mean age of 59. Six subjects were white, four were black and one was Hispanic. In half of the subjects, the cause of ED was diabetes or cardiovascular disease ?both of which can interfere with the ability of smooth muscle cells to relax. The primary goal of the study was to determine the safety and tole...

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