نتایج جستجو برای: 000 years of earths history
تعداد نتایج: 21210007 فیلتر نتایج به سال:
OBJECTIVE To quantify absolute cardiovascular disease (CVD) risk and treatment in Australian adults. DESIGN, PARTICIPANTS Cross-sectional representative study of 9564 people aged 18 years or more who had participated in the 2011-12 Australian National Health Measures Survey (response rate for those aged 45-74 years: 46.5%). MAIN OUTCOME MEASURES Prior CVD was ascertained and 5-year absolute...
BACKGROUND Adequate coverage of target populations ensures that desired outcomes, such as increased survival of people living with HIV, are achieved. However, estimates of coverage and impact of HIV programmes using available data are limited by the complex natural history of HIV, underreporting of cases and inadequate information systems. METHODS Jamaica's national HIV estimates were generat...
Pollen analysis and AMS radiocarbon dating of a short sediment core from a mire in Veisar (Mazandaran province, N Iran) reveals the late-Holocene vegetation history of the area. High pollen values suggest that Caucasian alder (Alnus subcordata) has been present in the vicinity of the mire throughout the record. Wingnut (Pterocarya fraxinifolia), which was previously abundantly present, shows a ...
The study was carried out by determining the effect of calcium ethylenediaminetetraacetate on the excretion and distribution in rats of a number of rare earths and yttrium, and correlating the magnitude of these effects with the stability constants of the chelates formed with some of the rare earths. These rare earths were selected because they form a long series of closely related elements wit...
BACKGROUND Menopausal hormone therapy to prevent chronic conditions is currently not recommended because of its adverse effects. PURPOSE To update evidence about the effectiveness of hormone therapy in reducing risk for chronic conditions and adverse effects, and to examine whether outcomes vary among women in different subgroups. DATA SOURCES MEDLINE (January 2002 to November 2011), Cochra...
BACKGROUND Several studies have evaluated the incidence of and risk factors for injuries among wrestlers, but there are limited data in this population. Understanding the incidence and risk factors could provide important information for educational and preventive efforts at the national and international levels. PURPOSE To assess the incidence of and risk factors for fractures and dislocatio...
Natural History Statistics Older statistics estimate that in the United States, acute pulmonary thromboembolism afflicts 500 000 to 600 000 persons annually and is either a primary or secondary cause of death in 150 000 to 200 000 of these individuals.1,2 Extrapolation of a population-based study from data accumulated in 1985 through 1986 in Worcester, Mass, suggests that each year there are '1...
There have been no prior large population-based studies focusing on cutaneous lymphomas (CL) in the United States. Using the Surveillance, Epidemiology and End Results (SEER) program data, we analyzed age-adjusted CL incidence rates (IRs) and survival rates by sex and race/ethnicity. There were 3884 CLs diagnosed during 2001-2005. Cutaneous T-cell lymphomas (CTCLs) accounted for 71% (age-adjust...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید