Osteopenia
发表于 2025-3-21 18:52:43
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泥土谦卑
发表于 2025-3-21 22:13:10
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Strength
发表于 2025-3-22 03:29:57
1431-875X he first, Introduction to the Mathematics of Population (Addison-Wesley, 1968), gave the mathematical background. The second, the original of the present volume, was concerned with demography itself. The third in the sequence, Mathematics Through Problems (with John Beekman; Springer Verlag, 1982),
BLAND
发表于 2025-3-22 06:37:30
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Flatus
发表于 2025-3-22 10:18:33
https://doi.org/10.1007/978-3-030-76043-4may show males 80 percent higher; the average with living population as weights may show males 70 percent higher; with deaths as weights males may be 50 percent higher. Our question is whether male mortality is 10, 50, 80, or 70 percent higher than female. The issue is raised in Sheps (1959) and Golini (1967).
Fracture
发表于 2025-3-22 13:24:56
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ELATE
发表于 2025-3-22 18:39:44
Fractional Differential Equationsat some ages and falling at others, by the rise or fall being moderate or rapid, by its being linear, quadratic, or of higher degree. Any and all of these and their combinations could be given the same detailed attention as stability. Needless to say that will not be done here, nor is it likely to be done anywhere else.
CAJ
发表于 2025-3-22 22:07:42
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率直
发表于 2025-3-23 01:47:07
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synovitis
发表于 2025-3-23 08:51:02
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