Studies on the Antliraquinone Mordant Dyestuffs. I. Alizarine

Cc . the Action of Dyestuffs on Enzymes

The method of investigation consisted in submitting a preparation of urease to the action of a dyestuff at PHI 7-4 and at 450 for a given time, usually 30 mins. or 1 hour, and in then determining the activity of the enzyme by estimating the amount of ammonia produced at 450 in a given time from a 0 3 % solution of urea. 1 cc. of the enzyme preparation was added to 2 cc. M/15 phosphate buffer so...

Pigments and Dyestuffs

The binding of dyestuffs by proteins

survey on the rule of the due & hindering relying on the sheikh ansaris ideas

قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...

Studies on the Venous Pulse. I

A wave is described occurring in the venous pulse of man late in the diastolic period. This wave is a diastolic wave, since in an increase in length of the cardiac cycle it follows the h wave at its regular interval and becomes separated from the a wave of the next cardiac cycle. There is no wave on the venous pulse in man which can be referred to a contraction of the region of the great veins ...