蚀刻 发表于 2025-3-23 10:25:27
Incorporating Origins into Evolutionary Theorythe feeling that there is more to evolution than changes in gene frequencies in local populations under different environmental conditions. The second is that evolutionary theory has been preoccupied with questions of maintenance rather than with questions of origin of diversity.Astigmatism 发表于 2025-3-23 16:58:21
The Evolution of Generic Formss they can be so made, genealogies; and will then truly give what may be called the plan of creation.” It is now possible to construct such genealogies on the basis of, for example, the similarities and differences of genomic DNA sequences in different species. But such genealogies do not reveal theExpertise 发表于 2025-3-23 18:16:46
Book 1992nd the philosophy of science, it is unique document, since bridges to the natural sciences in a mutually illuminating way are hard to find. Whether as a primary source or as inspirational reading, we feel this book has a place in every library. The material comes from an international meeting held i表示向下 发表于 2025-3-23 22:20:23
This approach is used to evaluate the cost and energy from transportation and its expansion, at the same time promote food production and productivity growth, considering the occurrence of proper water balance promoted by natural rainfall, for a sustainable agricultural frontier expansion in BrazilAntigen 发表于 2025-3-24 04:46:36
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lpyrrolidone lacks the viscosifying power to be economically useful in enhanced oil recovery processes..We have found that copolymers of vinylpyrrolidone and acrylamide can be effective polymers for oil recovery applications. We anticipate the greatest use will be in operations in which high tempera热情的我 发表于 2025-3-24 17:51:57
Andrew J. McKennautions, etc., were chosen mostly from reprints received directly from authors. The courtesy of those is highly appreciated. The manuscript is usual Iy prepared in May and June of the year fol lowing the year which it covers. Unfortunately some reprints come later and thus the respective references aArresting 发表于 2025-3-24 20:51:31
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