EPA, OSHA and CPSC accept non-animal system for screening chemicals' skin corrosiveness
...l thousand rabbits have been used each year in the old test, according to one estimate. Under ICCVA...r for animal and alternative resources, said, "The old test requirements called for three animals for each chemical that is evaluated for skin corrosivity ...Emphysema linked to smoking marijuana
...continued to be, heavy cannabis users. The 27 year old had smoked several pipes of pot a day for several years; both the men in their 40s smoked two or three joints a day, while the man in his 30s had smoked two joints a week for about 20 years. The common perception of cannabis, say the authors, is th...Smoking during pregnancy found to increase risk of cleft lip and palate
...ot African American or who were less than 27 years old were more likely to give birth to a child with a cleft palate or lip. After correcting for all these factors, they still found that smokers were 30 percent more likely to have a child with the birth defect, and that the rate was still highest among ...Cockroach birth control from gene discovery
...cott and Wen needed cockroaches, they went to some old Cornell graduate-student housing units that were slated for demolition. There they found both the brown-banded and German types. The Cornell study of cockroach genes was supported by the U.S. Department of Agriculture's Hatch funds and by a grant fr...The genetics of aging: New study says cell division errors may be the common link
...vely dividing cells donated from young, middle and old age patients and those with progeria, a rare genetic disorder characterized by accelerated aging. The authors note that 61 of more than 6000 genes studied showed consistent changes more than two fold from young to middle age. More than half of the ...UC Berkeley biologist disputes current dogma that genetic mutation is the cause of cancer
...rt for the aneuploid theory of cancer. "This is an old concept that was abandoned too soon," he said, noting that scientists 50 years ago seriously considered aneuploidy a possible cause of cancer. "Today, aneuploidy is not in the textbooks, it's not in the scientific repertoire," Duesberg said. "Two yea...Adding acetone to compost remediates chunk TNT contaminated soil
...bucket of fingernail polish remover. Soil found on old gunnery ranges and military wastewater lagoons is ...h great relish. That is, if the relish consists of old sawdust, hay, mashed sugar beets and a sampling of manures in the form of compost. Digging up soil a...New antioxidant vitamin RDAs better, but not good enough
... issue with vitamin E is even more pronounced. The old standard was 8-10 milligrams and the new one is 15 milligrams; but the amount most likely to be of value in reducing the risk of heart disease and other chronic diseases is about 200 milligrams, the OSU experts say. "The actual vitamin E consumed by...Updated study shows baseline annual diet costs less for women than men
...50 year-old man is $651.27, while for a 25-50 year old female the minimal annual cost is $535.27. The dat...ws that the optimal solution diet for a 25-50 year old man consists, on a daily basis, of 1.31 cups of wheat flour, 1.32 cups of rolled oats, 16 fluid ounc...South Dakota windbreaks need renovation
...s. A typical cottonwood tree lives to be 75 years old before it starts to decline and eventually dies. ...d, "the reason cottonwood trees are succumbing to old age is because they grow best in sandy soils and open sunlight on floodplains. Flood control projec...Cloning reverses aging in cow cells, a milestone in medical research
...ld potentially turn back the aging clock to return old cells to their earliest stages of development. If ...n Science describes the cloning of six calves from old (senescent) cells at the end of their aging clock (lifespan). Cells taken from these animals not onl...Advanced cell technology reports reversal
... a means to turn back the aging clock by returning old cells to their earliest stages of development. If ...ted from cells at the end of their lifespan. "The old cells were not merely returned to a youthful state. Remarkably, they were actually given a longer li...Cloning reverses aging in cow cells, Scienceauthors say
... inherited the "age" of her genetic mother and was old before her time. By contrast, chromosomes from the cow sisters are the picture of youth. Telomeres from the clones are actually longer than those from normal cows of the same age, and in most cases even longer than those from newborn calves. Far from...Study finds elderly women can halt bone loss
... Barbara Black, a Corvallis resident, was 74 years old when she began the study and has stayed with it ever since. Closing in on her 80th birthday, she is acknowledged as one of the group's most fervent participants. And no wonder - her bone density has actually increased 15 percent with the study. "B...Carbon diem: Grants awarded to research that seizes excess carbon dioxide
...ter its collection -- such as by injecting it into old mines or into briny aquifers, or by replacing dril...te the gas, INEEL researchers are investigating an old technology in a new way -- the vortex tube. Used for separating gases based on the size of their mo...Clot-busting drugs don't benefit older heart attack patients
...tims --fail to benefit patients more than 75 years old and may actually increase their risk of death, according to results of a Johns Hopkins-led study. Older heart attack patients who received intravenous thrombolytics, medications that dissolve clots in the blood vessels supplying the heart, were nea...Spring meeting press conferences
...ion in the Press Room, an opportunity to chat with old and new friends. Then, at 6:30 PM, we will move into the Briefing Room for a discussion based on Jill Schneiderman's new book, The Earth Around Us: Maintaining a Livable Planet (W.H. Freeman, 2000). The editor and other contributors to this collectio...'Scarlet E' still taints media, still distorts epilepsy
...sed without medical context, breathe new life into old misperceptions that link convulsions with death and the devil," Krauss explains. They also ignore the established medical warning against restraining people in the midst of a seizure. The researchers examined 210 stories from 73 news sources and 1...New research centre to continue 200-year-old traditions
...blished 40 years ago, but time has run out for the old buildings. 90,000 tourists now visit the park annu...t is being redeveloped. That means demolishing the old centre. Adelaide University has announced plans to build a new field research station. Called the Fl...Discovery of fossil mollusks in Alaska links histories of Arctic Ocean and Isthmus of Panama
... southern Alaska in rocks almost 5.5 million years old led Marincovich to conclude that the Bering Strait must have first opened at that time. In order to be found in southern Alaska, Astarte must have migrated southward through Bering Strait. What was puzzling about his find is that nearly two mi...