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Tag: "kinds" at biology news

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...s in lower parts of the brain. Moreover, different kinds of rewards (in this case, the "rush" of romantic love, compared with the pleasing experience of looking at a pretty or handsome face) is also lateralized. These results give us a lot to think about how the normal human brain learns and remembers and ...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...t turns out that the tip of the trunk contains two kinds pressure-sensitive nerve endings--Meissner's corpuscles that detect infrasonic vibrations, and Pacinian corpuscles that respond to vibrations with slightly higher frequencies. Little is known about how these nerve endings are distributed in the elep...

New tumor-suppressor gene discovered

...couldn't possibly function at all," Lai says. Both kinds of mutations resulted in the formation of the same kinds of tumors. These studies indicate that the disabling of this one gene alone can cause the growth of ...

Are rice and wheat behind China's population boom?

..." Crawford says. "We had no evidence of what other kinds of crops they grew, their relative popularity across the country and how these people may have been managing their local ecology." Crawford says what they are seeing now is a very sophisticated knowledge about growing rice - how to intensify yields ...

Biochemists report discovery of structure of major piece of telomerase; implications for cancer

...itutes of Health, could have applications for many kinds of cancers. The domain of telomerase whose structure the biochemists have determined is essential for telomerase to add nucleotides to telomeres. Telomerase is composed of both RNA and proteins. The entire RNA domain is composed of 451 nucleotides, ...

A little stress gives beneficial oomph! to immune system

...ing how the body's stress hormones work with these kinds of proteins to recruit immune cells could help us develop therapeutic interventions to regulate how a person's immune system responds to different challenges." ...

Advancements In Genomics Foster Deep Sea Discoveries

...d in the deep recesses of the world’s oceans. What kinds of creatures, they wondered, could withstand the dark, cold and extreme pressure of such an environment? Researchers at Scripps Institution of Oceanography at the University of California, San Diego, and their colleagues have used innovations in gen...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

... not replaced, the first step was to label the two kinds of cells in order to tell them apart. The replace...as UCHL1. "We expected UCHL1 would be high in all kinds of neurons," says first author Anthony Lombardino, Ph.D., a postdoctoral fellow in Nottebohm's labor...

FDA Warns About Antipsychotic Drugs and Elderly

... requesting that the manufacturers of all of these kinds of drugs add a boxed warning to their drug labeling describing this risk and noting that these drugs are not approved for the treatment of behavioral symptoms in elderly patients with dementia. Patients receiving these drugs for treatment of behavior...

Study uncovers bacteria's worst enemy

... better than other bacteria in the presence of all kinds of contaminants. The study examined the effects of toxicity of actinides, metals and chelators on different bacteria being evaluated for radionuclide bioremediation, Deinococcus radiodurans and Pseudomonas putida, along with the toxicity of plutoniu...

Gene therapy cures inherited liver disease in rats

...g-term alleviations of the toxic symptoms of these kinds of diseases. The treatment could be repeated when needed. The treatment used a specially developed adenovirus to carry the gene into the animal's cells. This viral vector, as it is called, was manipulated so that it minimized toxic side effects. Thi...

Science study holds implications for gene therapy and stem cell biology

...e stem cells versus differentiating into different kinds of stem cells. "The next step would be to increase the availability of genes that enhance stem cell fitness using this novel approach. Simultaneously, we need to study whether similar genes regulate the behavior of human stem cells, because so far o...

Gov't Creates Gene Database of Normal Human Tissues

... genes are involved in one way or another with the kinds of activities associated with the development of cancer -- processes such as apoptosis, growth, proliferation and transcription," said Khan. These results provide scientists studying and treating NB with a focused set of genes to explore. ...

Next Generation Body Scanner Launched By The University Of Manchester

...urs and cancers grow and develop and how different kinds of treatment might work. It will also help researchers looking into strokes and will enable them to understand the way the brain recovers in stroke patients. The scanner will also benefit researchers carrying out work into mental illness and wil...

A probe, not an echo

...s' group, to form the multi-band images. Different kinds of tissue allow slightly more, or slightly less of the pulse through -- the loss is called "attenuation," and varies according to the type of tissue, and the frequency of the pulse. "Typically the resulting images represent minute variations in rela...

Scientists use manufacturing methods to reconstruct mastodon

...e some work on the tusks and teeth, to recover the kinds of information on health, reproductive history, diet and climate that are the focus of a lot of my research. Once the exhibit opening is behind us, I hope to be able to concentrate more on the interpretation of this animal's history and what it can t...

Asymptomatic HIV babies could use earlier treatment

...able to see the real distribution of illness, what kinds of treatment the children were given and the ages when they started treatment.?/p> The researchers divided the HIV-infected newborns into three groups: those born from 1988 to 1991, from 1992 to 1995 and from 1996 to 2001 based on the types of th...

Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils

..." Xiao said. Taylor said, "Clearly, there are two kinds of organisms living together and, we believe, interacting in more than a chance association." In modern lichens and in the 400-million-year-old Scotland fossils, the coccoidal cells provide the nutrients and the fungal filaments provide protection a...

Mice brains shrink during winter, impairing some learning and memory

...ted by short days. "It appears that only specific kinds of brain function are impaired during winter," Nelson said. In a second experiment, 16 adult male white-footed mice were kept in short or long days for 14 weeks, after which they were sacrificed. The researchers then examined differences in the brai...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...tists from 10 countries took samples by towing two kinds of net over the ocean floor and by stamping out small cores 50 centimeters deep. In some cases it took up to three hours for sampling equipment to reach the seabed, 4,500 meters below the ocean surface. (Half of the Earth is under more than 3,000 me...

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