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Tag: "percent" at biology news

Making Sure Sacred Sheep Don't Become Extinct

...t sheep breed. The resulting offspring would be 50 percent Churro. The process would be repeated using a female offspring, making the next generation 75 percent Churro. They keep doing this until the sheep are 93 percent Churro. The collection could also be us...

Mother birds increase progesterone to hatch females

...ame oil. The low dose of progesterone produced 61 percent males, which was very close to the control group rate of 63 percent males. The high dose of progesterone, however, produced only 25 percent males. "Thus, we think that...

'Smart drug' targets deadly brain cancer

...TG research provides. Study data showed that in 36 percent of patients suffering from recurrent glioblastoma ...ts with recurrent glioblastoma." Achieving the 36 percent regression rate was an encouraging result -- but researchers didn't stop there. They took the work a...

Gov't Creates Gene Database of Normal Human Tissues

...r cancer, neuroblastoma (NB), which accounts for 7 percent to 10 percent of all childhood cancers. Even though the tumor samples were taken from a variety of patients with d...

Where bacteria get their genes

Bacteria acquired up to 90 percent of their genetic material from distantly related bacteria species, according to new research from The University of Arizona in Tucson. The finding has important biomedical implications because such gene-swapping, or lateral gene transfer, is the way...

Remote control flies? Fly behavior controlled by laser light

...controls in the giant fiber system worked about 63 percent of the time, while remote controls placed in other...t were targets of the giant fiber system worked 82 percent of the time, the researchers concluded. Lima and Misenböck also equipped another set of nerve cells ...

Bee mites suppress bee immunity, open door for viruses and bacteria

...Japanese researchers found that a virus that is 99 percent the same as deformed wing, appears in in the brains of aggressive guard bees," says Cox-Foster. "Guard bees that are aggressive better protect the hive, so there may be some positive effect in this virus that allows it to persist in a colony." The c...

Primates on the brink

... by Conservation International that cover just 2.3 percent of the Earth's land surface but harbor well over 50 percent of all terrestrial plant and animal diversity. Eight of the hotspots are considered the highest prio...

UCLA study assesses cost-effectiveness of Hepatitis B drugs

...ailure, cirrhosis or cancer of the liver. About 90 percent of healthy adults who are infected with Hepatitis B recover with no problems, but 10 percent develop chronic disease. In children who have been infected, 60 percent develop chronic disease. Ot...

'EuroVacc 02' HIV Vaccine Trial Begins

...d sub-Saharan Africa, and constitutes more than 50 percent of the new HIV infections worldwide. The phase I clinical trial, with the EuroVacc Foundation as the sponsor, will evaluate the safety of DNA-HIV-C alone and of the prime-boost regimen of DNA-HIV-C+NYVAC-HIV-C, and to compare the immunogenicity of t...

Researchers test new therapy for advanced melanoma

...he melanoma tumors as abnormal and attack. Eighty percent of the mice were cured with this therapy -- their tumors disappeared and the treated animals remained disease free for the full length of the study (100 days), Dr. Heller said. Furthermore, he said, even when melanoma cells were reinjected into the ...

Bugs, even 'bad' ones, can be educationally beneficial, new book says

... Of the 900,000 known species of insects, a mere 2 percent are considered pests. Just as some plants growing where they are not wanted are considered weeds, insects are considered pests only when they adversely affect people, Waldbauer writes. For example, homeowners typically think of termites as pests, bu...

Virologists make major step towards understanding the process of HIV infection

... treatment of cancer. The Center is financed to 90 percent by the Federal Ministry of Education and Research and to 10 percent by the State of Baden-Wuerttemberg. It is a member of the Helmholtz Association of National Research...

Scientists use manufacturing methods to reconstruct mastodon

... Whereas most mastodon specimens are only about 20 percent complete, 70 to 80 percent of the Buesching mastodon's skeleton was found. "Having even a few specimens as complete as this on...

New Species of Coral Discovered Off Southern California

... treatment of cancer. The Center is financed to 90 percent by the Federal Ministry of Education and Research and to 10 percent by the State of Baden-Wuerttemberg. It is a member of the Helmholtz Association of National Research...

Atmosphere may cleanse itself better than previously thought

... theorize that the atmosphere may produce up to 20 percent more OH radicals from these chemicals than we once thought," said Francisco, who is a professor of both earth and atmospheric sciences and chemistry in Purdue’s College of Science. "We now have a better understanding of an atmospheric process that co...

Disabling gene defuses rheumatoid arthritis in mice

...cts approximately 2.1 million Americans or about 1 percent of the population. Women are two to three times more likely to develop the disorder than men. Symptoms often occur in episodic bursts and may include morning stiffness, fatigue and joint and muscle pain. In severe cases, rheumatoid arthritis can dama...

U. Iowa researchers improve Huntington's disease symptoms in mice

...s of the toxic HD protein were reduced to about 40 percent of the level seen in untreated mice. "It is very exciting that a partial reduction is sufficient to produce a very beneficial effect in the animal. It means that we don't have to turn the gene off completely," Davidson said. "For a disease that take...

Researchers pioneer new gene therapy technique using natural repair process

...ombination event occurred at the break site and 11 percent of the cells tested had traded one copy of the mutant gene for the correct version. In addition, 6 percent to 7 percent of cells had traded both copies of the bad gene for the correct version. With the corr...

Asymptomatic HIV babies could use earlier treatment

...ne. Without any kind of treatment, about 20 to 30 percent of HIV-infected infants will develop AIDS by aroun...before their third birthday. In contrast, about 55 percent of the children in the first two groups died of AIDS. When the researchers compared the outcomes in ...

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