Operandum [Reprinted from JEAB, 1962, 5, 224].
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چکیده
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Uniformity in time of flowering is desirable in tobacco (Nicotiana tabacum L.) production, especially when mechanization is involved. This study was initiated to determine methods of controlling premature floral induction without causing undesirable side-effects to the plants. Burley tobacco seedlings were treated with various combinations of illumination during the pretransplant period in cont...
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A multiwavelength spectrophotometric (WApH) titration method for determinatio constants (pΚa values) of ionisable compounds developed previously was applied derivatives of pharmaceutical interest. Specifically, UV absorption spectra of the drug the course of a pH-metric titration using an optical device based on a fibre optics dip pr diode array detector. Target factor analysis was applied to d...
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Refolding of the bovine pancreatic trypsin inhibitor protein (BPTI) after reduction of its three cysteine disulphide linkages can occur when the reduced protein is placed in a suitable oxidizing medium (ref. I and refs therein). The refolding process has been studied by trapping chemically intermediates which contain only one or two disulphide bonds (ref. I and refs therein). We report here tha...
متن کاملReprinted from PHYSIOLOGlCAL ZOOLOGY
Oxygen consumption, heart rate, and thermal tolerance were measured in week-old embryos of Heermann's gull ( h r u s heermanni). Heart rate and oxygen consumption are temperature independent between 30 and 40 C and average 120 beats/min and 1.87 cm3 Ot/(egg-h). Below 30 C, these rate processes become strongly temperature dependent, and the heart stops beating when cooled to 7-13 C. The beat rec...
متن کامل156 Selections Reprinted From
MR0199184 (33 #7333) 14.18 Hironaka, Heisuke Resolution of singularities of an algebraic variety over a field of characteristic zero. I, II. Annals of Mathematics. Second Series 79 (1964), 109–203; ibid. (2) 79 (1964), 205–326. Outre la solution d’un problème célèbre, ce travail donne un des outils les plus puissants de la géométrie algébrique. Ce résultat est atteint avec une surprenante écono...
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ژورنال
عنوان ژورنال: Journal of the Experimental Analysis of Behavior
سال: 2000
ISSN: 0022-5002
DOI: 10.1901/jeab.2000.73-140