Tag: "age" at biology news
Dating A Caveman
...transmutations occur, researchers can estimate the age
of a rock. Basically, the higher the ratio of Th-2...heck his data, Ku compared his mass spectrographic age
determinations with results obtained from an alternate method - one using the isotopes Proactinium-2...
Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey
...ean Late Bronze Age by as much as a century. This age
has long captured the popular imagination, Newton ...rmation of states. We must determine the absolute age
of these historic and prehistoric processes, as well as their chronological relationship, in order t...
New Grapes From Cornell Debut
...ith certain honey and apricot flavors that seem to age
well," said Brahm, who has been in the wine and grape growing business for over 30 years. Because his vineyard is situated above Canandaigua Lake at an elevation of 1150 feet, Brahm would never consider planting a true Gewrztraminer vinifera g...
Florida Researchers Discover Gene For Fatal Childhood Disease
... battle bacteria and viruses. They typically dieby age
6 of infection or cancer, usually lymphoma or leukemia. The gene normally acts as a master switch to regulate the transport ofproteins within cells, said Dr. Stephen Kingsmore, a molecular geneticist atthe Center for Mammalian Genetics at UF'...
Bark Beetle Infestation Spurs Multifaceted Study
... lumbering, the history of fire in the area andthe age
of the trees before they were cut." Because many...ings.Archaeologists use tree rings to identify the age
of archaeological sitesfrom the cutting dates of construction materials. Taylor is using tree ring...
End Of World Population Growth Projected For 21st Century
... triple over the next50 years due to current young age
structures and high fertility levels. NorthAfrica...in 1995, 31.4 percent ofthe world's population was age
14 or younger. According to the Project's latestprojections, the percentage will clearly fall over t...
Genetic Makeup May Explain Why Some Women Smokers Develop Breast Cancer While Others Don't, UB Study in JAMA Reports
...was highest for women who began smoking before the age
of 18. The two genotypes are referred to as s...was highest for women who began smoking before the age
of 18. Intensity of smoking -- the number of cigarettes smoked per day at two, 10 and 20 years prio...
Twin Study May Ease Parents' Concerns About Late Talkers, Underscores Impact Of Environment On Language Development
...ing impairment,he said. On average, children that age
can say about 10 words butunderstand about 100 wor...f 8 and 10 months. "Somewhere between the age
of 14 and 20 months, languagecomprehension really takes off," he said. "It's as if the child finall...
Two Long-sought Diabetes Gene Found
...Most people with NIDDM develop symptoms only after age
40, which has made it difficult to gather the large multi-generational families needed for genetic studies. But careful analysis of several extended families with MODY has provided the thorough pedigrees needed to study the genetics of this disease. ...
Prostate Cancer May Be Predicted 10 Years Before Diagnosis
...est and digital rectal exam annually, beginning at age
50. African American men and those with a family h...ate cancer should have the same tests beginning at age
40.In 1996, an estimated 317,100 new cases of prostate cancer were diagnosed, and prostate cancer wa...
Malnutrition Impacts Longevity Of Females More Than Males And Shows Gender Differences In Fruit Flies
...s is the first known study to demonstrate that the age
trajectory,or path of mortality, during a specific period of life can be changed bymanipulating environmental conditions, in this case through diet,"said Carey, an authority on insect demography, who for several years hasused the Medfly to study life...
Pets Provide Physiological Benefits For Women Living Alone
...ners was lower than that of non-pet-owners in both age
groups. Among elderly women, those with pets had ... have a similar effect on elderly men, and at what age
social support becomes important in moderating age-related increases in blood pressure....
Virus May Be Linked To Obesity -- Early Findings Hint At Relationship
... other measures the researcherscompared, including age
or family history of obesity. In males the presence of antibodies was associated with asignificantly better response to treatment with obesity drugs, saidDhurandhar. "There has been an alarming worldwide increase in the prevalence o...
Teens Shop "Healthy", But Trust Label Claims Too Much
...e and female high school students with an average age
of 15 and both experienced and inexperienced shoppers. Girls were more likely than boys to use front-of-the-label nutrition claims. However, there were no significant differences between males and females and their use of nutrient labels on the ba...
Children With AD/HD Have Significant Functional Disabilities Related to Attention Deficit
... behavior and communicate than children of similar age
who were not diagnosed with the disorder. "W... closely to inattention than disruptive behaviors, age
or IQ," Lock said. "The study should shed light on the public debate about whether these children a...
Stuttering Appears To Have Strong Link To Family Genes, Researchers Say
...en will begin to stutter at some point,most before age
5. About four of those five will stop within a few years,Yairi said. One, however, will become persistent, struggling with a disorderin which speech problems are "only the tip of the iceberg," hesaid. Finding clues as to which kids will persist -- th...
Calorie Restriction Reduces Age-Related Muscle Loss
...se. Both RRFs and COX-negative fibersincrease with age
in some human muscles. Weindruch and Aiken's team...enia," said Weindruch. "CRinitiated in late middle age
apparently can slow the progression of thispervasive problem."...
New Gene May Intensify Breast Cancer Growth
...ir tumors different,do they develop at a different age
or at a different rate" We don't have answersto any of those questions yet, but we are actively seeking the answers," saidTrent. "A lot is known about how steroid receptors work, but the wiring of how theysend their signals has been imperfectly under...
Female Adolescents Need Calcium During 'Window Of Opportunity'
... milligrams of calcium per day. For adolescents in age
groups 9 to 13 and 14 to 18, the new recommendatio...- at an annual cost of $13 billion. As the average age
of the U.S. population rises, the problem is expected to get worse. Weaver's study found that adding...
More To Drought Than Meets The Eye
...dendrochronology -- is often used to determine the age
of trees by looking atthe growth pattern and matching all trees on a site using key signature rings,such as the small rings representative of a drought. In this way, the ringscorresponding to the drought years of 1985, 1988, 1991 and 1995 were identi...
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