Evidence for Physical Aging of Periodic Comets
نویسندگان
چکیده
منابع مشابه
Physical Activity Among Iranian Former Sportsmen and Athletes as Possible Evidence for Continuity Theory of Aging
Objectives: Physical activity in late life may be a continuity of activity pattern in the early stages of life. The current study aimed to assess physical activity levels in former Iranian sportsmen and athletes, in 2016. Methods: This cross-sectional study used convenience sampling method to select 223 former Iranian sportsmen and athletes living in Tehran City, Iran. Informed consents were o...
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Two recently discovered short-period comets (P/1997 T3 (Lagerkvist-Carsenty) and P/1998 U3 (Jäger)) were found, by means of numerical integrations, to have recently encountered Saturn, leading to drastic orbital changes. In both cases the orbit was transformed from a Saturn-dominated regime (roughly tangential to Saturn’s orbit) into a deep Jupiter-crossing orbit. For P/1997 T3 a close encounte...
متن کاملPhysical Activity and Aging
I am fully aware of the distinction bestowed upon me to participate in tonight's meeting held to honour the memory of Sir Adolphe Abrahams. Sir Adolphe was the founder of clinical sports medicine and I for one am greatly indebted to him for much he taught me. No one before him has brought to bear upon the study of athletics the same combination of comprehensive knowledge of internal medicine an...
متن کاملPhysical activity and aging.
Most human beings experience peak physical performance in their late teens and begin a slow decline in their early 20s, whose course is greatly affected by the activity levels undertaken by individuals in the years that follow. Many studies provide evidence that in developed nations such as the U.S., a sedentary lifestyle contributes significantly to development of the major risk factors for ag...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1989
ISSN: 0252-9211
DOI: 10.1017/s0252921100109856