ScienceJohn Michels (Journalist) 1953 |
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Стр. 37
... periods : 1. The first St. Petersburg period ( 1881-1884 ) , when his interest in science matured . Though this may be considered as still a period of intensive training , Winogradsky began and completed his first scientific problem ...
... periods : 1. The first St. Petersburg period ( 1881-1884 ) , when his interest in science matured . Though this may be considered as still a period of intensive training , Winogradsky began and completed his first scientific problem ...
Стр. 271
... period , the period of acute symptoms , and the recovery period , of which the first two only are of importance as far as this communication is concerned . The latent period is de- fined as the time elapsing from the commencement of ...
... period , the period of acute symptoms , and the recovery period , of which the first two only are of importance as far as this communication is concerned . The latent period is de- fined as the time elapsing from the commencement of ...
Стр. 351
... period results in photoperiodic gonadal re- sponse not obtainable with a continuous dark period and the same amount of photoperiod . They conclude that the dark period is an inhibiting factor in this spe- cies , and suggest that the ...
... period results in photoperiodic gonadal re- sponse not obtainable with a continuous dark period and the same amount of photoperiod . They conclude that the dark period is an inhibiting factor in this spe- cies , and suggest that the ...
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News and Notes | 38 |
21 | 40 |
A Quantitative Analysis of the Factors Involved in | 49 |
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