Tag: "arms" at biology news

Doernbecher Children's Hospital scientist earns coveted Javits award

...ithout an assistive device, inability to use one's arms and legsand weak torso muscles; as well as, intellectual challenges, includingthinking, reasoning, remembering, imagining or learning words. Premature birth is the leading cause of cerebral palsy, explains Back,and in the United States, a child who...

Unknotting DNA clue to cancer syndrome

...l chromosomes intact, or exchanging the chromosome arms to form a crossover. Both yeast and human cells contain two copies of each chromosome, one from each parent. During the cell division cycle, each chromosome gets copied, so for a while there are four of each. Textbook models show only one end of ...

Rare example of Darwinism seen in action

...ct has been likened to a battle of the sexes or an arms race at the molecular level between mothers and fa... The new research supports the idea of a genetic arms race going on between a live-bearing mother and her offspring, assisted by the growth-promoting gene...

Study explains how pathogens evolve to escape detection

An arms race is under way in the plant world. It is an evolutionary battle in which plants are trying to beef up their defenses against the innovative strategies of pathogens. The latest example of this war is a bacterium ( Pseudomonas syringae ) that infect...

Researchers witness natural selection at work in dramatic comeback of male butterflies

...ase of H. bolina, we're witnessing an evolutionary arms race between the parasite and the host. This strengthens the view that parasites can be major drivers in evolution." The researchers focused on the Samoan islands of Upolu and Savaii, where in 2001, males of the Blue Moon butterfly made up only 1 p...

Researchers shed light on shrinking of chromosomes

...nto two takes place. Like this, no long chromosome arms extend over the plane of division, because that could expose the DNA to serious mechanical damage. The extreme condensation of chromosomes towards the end of cell division can also serve as a safety net if something goes wrong with chromosome separa...

ESA's water mission instrument passes test program

...central structure and three deployable arms. These arms were folded up for the next testing procedure when...perature distribution across the body of the three arms is an important factor for MIRAS's overall measurement performance. For the test to be meaningful, t...

Human ancestors learned to walk upright in the trees, say experts

...py as well as the ground by developing very strong arms to climb vertically up and down tree-trunks and as a consequence became top-heavy. When they are on the ground, therefore, they move predominantly by knuckle-walking, propping themselves on their long, heavy forelimbs. ...

Lessons from the orangutans: Upright walking may have begun in the trees

...t typically is. Moving on two legs and using their arms primarily for balance, or "hand-assisted bipedalis...n medium-sized branches, the orangutans used their arms more to support their weight, changing their moving style to incorporate hanging. They only tended t...

IMS updated recommendations on postmenopausal hormone therapy

...itional information has been accumulated from both arms of the WHI study, observational trials and from other studies, allowing a more comprehensive review on all issues related to the use of hormones in the postmenopausal period. In view of the above, the IMS Board decided that it is time to update the 2...

From the deep -- Researchers find new species of sea anemone

...OVs). Deep sea ROVs are also equipped with robotic arms and suction devices that are used to collect species. "It's like a submarine that's manned from the surface," said Daly, who plans to head to Monterey Canyon later this year in hopes of finding more dead whales with A. pearseae roosting on the bone...

Testosterone may help men with multiple sclerosis

...aining 100 milligrams of testosterone to his upper arms once daily for 12 months. "After a year we saw an improvement in cognitive performance and a slowing of brain deterioration, said Voskuhl. During the first nine months of the study, the mens symptoms were simply monitored, then followed by just thr...

UF scientists identify cancer virus' genetic targets

... are red spots full of blood vessels on the necks, arms and legs of patients," said Rolf Renne, Ph.D., an associate professor of molecular genetics and microbiology at the College of Medicine and a member of the UF Shands Cancer Center and the UF Genetics Institute. "We think that the tumor virus is using...

Research suggests men's sexual behavior adapts to perceived threats

...tween males and females produces a co-evolutionary arms race between the sexes, in which an advantage gained by one sex selects for counter-adaptations in the other sex."...

'War Between the Sexes': The coevolution of genitalia in waterfowl

...le and female anatomy have co-evolved in a "sexual arms race." In most birds, copulation consists of a simple, and rather chaste, "cloacal kiss." But, avian diversity includes a few ancient lineages that retained the grooved phallus found in their reptilian ancestors. Among living birds, the waterfowl a...

Oxford physiology professor earns APS' Walter B. Cannon Award

.... The ability to see, hear, think, speak, and move arms and legs is due to the activity of ion channels in the nerve cells of the brain and in the muscle cells of the limbs. When these channels malfunction, a variety of diseases can result, including diabetes, cystic fibrosis, epilepsy and sudden cardiac ...

Replacement warhead program poses challenges for weapons complex

...s program goals with those of nonproliferation and arms control. The panel said there were risks in all future approaches, but pursuing the initial phases of the RRW path could be a prudent hedge against the uncertainties of an all-legacy future, and an opportunity that might result in a better long t...

New deep-sea hydrothermal vents, life form discovered

...iological specimens with the aid of the mechanical arms it uses to remove rock samples, has gathered samples of mussels from the vent area. According to Von Damm, wherever there are mid-ocean ridges, scientists frequently find geothermal vents warmed by heat energy from underlying volcanic conduits. "...

Discoveries thrust cancer-initiating stem cells into a larger role in cancer biology and treatment

...tem cell self-renewal by controlling two different arms of the pathway, says Korkaya. In breast cancer, the loss of PTEN is linked to nearly a quarter of all cases, while the overproduction of HER2 is associated with nearly 40 percent of all cases. Patients with a combined defect of PTEN loss and HER2 a...

Cetuximab and irinotecan combination increases survival in metastatic colorectal cancer

... no difference in overall survival between the two arms in this study. Nearly half of the patients, who we...ncers progressed. Therefore, many patients in both arms actually received the same treatment, which the researchers say could explain the lack of difference...

1 2 3 4 5 6 7

(Date:10/29/2014)... stem cell, those referred to as ,facultative, form part—together ... nothing that differentiates these cells from the others. However, ... the capacity to become stem cells again. This phenomenon ... that hosts cells that stimulate tissue growth, thus allowing ... a transplant. Knowledge of the underlying mechanism that ...
(Date:10/29/2014)... Ghrelin is a hormone released by the stomach and ... viewed as a psychoactive substance that primarily affects brain ... , This knowledge, combined with findings from animal ... the potential to stimulate alcohol craving. , Dr. Lorenzo ... found that, as they had anticipated, alcohol craving was ...
(Date:10/28/2014)... . , How ... when times are lean? By studying wild chimpanzees in ... the Max Planck Institute for Evolutionary Anthropology in Leipzig, ... can acquire extra energy needed to maintain large, costly ... more en route to breakfast sites containing fruits that ...
Breaking Biology News(10 mins):A mechanism that allows a differentiated cell to reactivate as a stem cell revealed 2Ghrelin stimulates an appetite for drinking alcohol 2The early chimp gets the fig 2The early chimp gets the fig 3
Other Tags
campushispanicsdarkeradhesivespontaneousdefeatshorsetrojanconfirmshourstimulationcolonoscopyorthopaedicsadhesiveachriactivist