منابع مشابه
Phylogenetic analyses reveal the shady history of C4 grasses.
Grasslands cover more than 20% of the Earth's terrestrial surface, and their rise to dominance is one of the most dramatic events of biome evolution in Earth history. Grasses possess two main photosynthetic pathways: the C(3) pathway that is typical of most plants and a specialized C(4) pathway that minimizes photorespiration and thus increases photosynthetic performance in high-temperature and...
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The proximate and ultimate analyses of 20 constitu ents of municipal and commercial refuse are presented, to .. gether with the calorific values. The analyses are useful o incinerator engineers as they are the basis for calcu Jating air requirements, flue .. gas volumes, and heat and material balances. The analyses of components of refuse permit the calculation of composite analyses of mixed ...
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As a means of distinguishing between the broad groups of flay minerals, chemical analysis may be a valuable supijlement to other methods, but rarely will it remove the necessity for other methods, X-ray analysis in particular. The twoand three-layer clay minerals may be distinguished by the SiOj • AlzOs ratio or SiOz • sesquioxide ratio, but these ratios do not provide criteria for dividing eit...
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over one’s genes? Perhaps it is because this notion resonates with a public that in the eighties and nineties the same press have bullied into believing that there is ‘a gene for everything’. In that sense, the debate is remarkably similar to the one on whether we humans (or animals in general) have such a thing as a free — or conscious — will. Much like with the idea of the vulgarised genetic ...
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ژورنال
عنوان ژورنال: The Journal of Agriculture of the University of Puerto Rico
سال: 1969
ISSN: 2308-1759,0041-994X
DOI: 10.46429/jaupr.v24i1.13593