The Nineteenth Century and After, Volume 116Leonard Scott Publishing Company, 1934 |
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Pagina 93
... active in B2 , owes this activity to a pig- ment , ' ovoflavin , ' which when crystallised has a formula of C17H20O6N4 , and which may well be a component of Vitamin B itself . If this is so , a further step has been taken towards the ...
... active in B2 , owes this activity to a pig- ment , ' ovoflavin , ' which when crystallised has a formula of C17H20O6N4 , and which may well be a component of Vitamin B itself . If this is so , a further step has been taken towards the ...
Pagina 198
... active radiation . Hitherto , three sorts of radiations from radio- active substances had been recognised : helium particles , negative electrons , and waves . The Curie - Joliots showed that positive electrons could also constitute a ...
... active radiation . Hitherto , three sorts of radiations from radio- active substances had been recognised : helium particles , negative electrons , and waves . The Curie - Joliots showed that positive electrons could also constitute a ...
Pagina 366
... active ' anti - aircraft defences unprepared . Nevertheless , there has been a tendency - and this is dangerous in more senses than one - to exaggerate the desire of air armies to resort to the indiscriminate bombing of a civilian ...
... active ' anti - aircraft defences unprepared . Nevertheless , there has been a tendency - and this is dangerous in more senses than one - to exaggerate the desire of air armies to resort to the indiscriminate bombing of a civilian ...
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