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Tag: "difference" at biology news

Penguins waddle but they don't fall down, UH researchers say

...erious research, and the results could make a real difference in many people's lives." ...

HPV subtype associated with squamous cell skin cancers

...an in control subjects, particularly HPV 5, but no difference was found in the presence of HPV antibodies in patients with BCC than in control subjects. The authors write, "Although sun exposure and sun sensitivity are the major risk factors for [skin] cancers, our data support a role of HPV, particularly bet...

UF researchers develop ways to keep the bloom on the rose

...through post-harvest techniques so consumers see a difference in the flowers they purchase ?not only on Valentin...the results of this research programs are making a difference with consumers already. We hope to make even greater strides in the next two to three years." Consu...

Sun protection for plants

...logical processes of plants could make significant difference to the lives of farmers in many parts of the world. Using model plant species, such as the tiny weed Arabidopsis, the researchers have uncovered one of the processes used by the plants to protect themselves from potentially lethal environmental condi...

Researchers test new way to quit smoking

...r research is to discover if there is a measurable difference in quitting success rates between the two groups in our trial," said Dr Bullen. ...

Cloned stem cells prove identical to fertilized stem cells

...e silent. There is really no significant molecular difference between both kinds of stem cells." "In my opinion, these results solidify the argument that while a cloned animal is abnormal, a cloned stem cell is perfectly normal," says Jaenisch. ...

Why nerve cells work faster than the theory allows

...w signals. Every living cell maintains a voltage difference across its cell membrane. Nerve cells distinguish ...ves from other cells in that they use this voltage difference to process and transmit messages. When a nerve cell receives an impulse, the voltage across the cell...

Faster immune system testing set to improve poultry quality

...borders. Collaboration within EUREKA made a marked difference to the project." ...

Engineered mouse mimics cognitive aspects of schizophrenia

...rchers found that the engineered animals showed no difference from normal mice in their general cognitive functioning, activity level, sensorimotor functioning, or anxiety. However, the mice did show the same kinds of specific cognitive deficits seen in human schizophrenics. In tests using mazes, the animals s...

Fertility drugs given 'all-clear' in new study

... 40 years. "We found no statistically significant difference in the overall rates of major and minor malformations or chromosomal abnormalities between newborns in the two groups," says Dr. Tulandi. "Our findings indicate concerns about a link between letrozole and birth defects are unfounded. This is signifi...

Cell barrier shows why bird flu not so easily spread among humans

...uman respiratory tract reveals a simple anatomical difference in the cells of the system that makes it difficult for the virus to jump from human to human. The finding, reported today (March 23, 2006) in the journal Nature, is important because it demonstrates a requisite characteristic for the virus to equip ...

Clues to breast cancer hidden inside stem cells

... the basic tool of their trade. But there is a big difference between a flat layer of cells and culturing cells in three-dimensions. The Icelandic researchers, realizing just how much a cells context matters, used the 3-D cell culture pioneered by Mina Bissell, at the Lawrence Berkeley National Laboratory in Ca...

Mice studies illustrate potential of chimp/human antibodies to protect against smallpox

...ntibodies did not lose weight. Since there was no difference in the protective abilities between the two hybrid antibodies, the researchers used 8AH8AL to determine the minimum effective dose. Groups of mice were given decreasing doses--90, 45 and 22.5 micrograms per mouse--of 8AH8AL or a single 5-mg dose of h...

Antioxidant selenium offers no heart-disease protection

...vascular disease, Stranges said. There also was no difference in the endpoints based on the level of selenium at baseline. In addition, the lack of significant association with CVD endpoints was confirmed even in the 246 participants who had CVD at baseline. (This data does not appear in the published manuscrip...

'Bad' enzymes may wear white hats after stroke

... after stroke," said Lo. "I think that makes a big difference in how we think about treatment. "One of the biggest problems facing stroke patients is that it's a neurodegenerative disorder, but also a medical emergency," he explained. "With other neurological disorders, such as Alzheimer's disease, the disease...

2005 was the warmest year in a century

...based on comparisons through November. The primary difference among the analyses, according to the NASA scientists, is the inclusion of the Arctic in the NASA analysis. Although there are few weather stations in the Arctic, the available data indicate that 2005 was unusually warm in the Arctic. In order to fig...

Of mice, men, trees and the global carbon cycle

... metabolic rates, the work uncovered a fundamental difference between plants and animals in how their metabolism...s more accurately because that number makes a huge difference in calculating how much of the gas is being absorbed from the atmosphere and staying in the biospher...

MIT chemist discovers secret behind nature's medicines

...at people thought there must be a really elaborate difference in their structures. But it's just a smaller amino acid change in the active site. Things are usually not this simple, but there's an elegant beauty in this simplicity," and it may be what gives other enzymes the prowess required for making other med...

Researchers map of genetic variations implicated in disease

...essary tools and sample collections to make a real difference to the study, diagnosis and, we hope, treatment of diseases such as TB, coronary heart disease, diabetes and rheumatoid arthritis." The MHC Haplotype Project is creating a public resource to assist the discovery of genetic factors influencing these ...

Cortex matures faster in youth with highest IQ

... brain imaging technology, we can now see that the difference may be in the way the brain develops," said NIH Director Elias A. Zerhouni, M.D. While most previous MRI studies of brain development compared data from different children at different ages, the NIMH study sought to control for individual variation ...

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