The catatorulin test for vitamin B1

Vitamin B1

Vitamin B1 is a watersoluble vitamin. It consists out of a pyrimidineand a thiazol ring, which are synthesized independently and linked afterwards.Vitamin B1 is de novo produced by many plants and microorganisms. Humans and animals have to take it up by nutrition. They are only able to do the phosphorylation reaction of the thiamin molecule. Thiamin is found free and as mono-, diand triphosphat...

the test for adverse selection in life insurance market: the case of mellat insurance company

انتخاب نامساعد یکی از مشکلات اساسی در صنعت بیمه است. که ابتدا در سال 1960، توسط روتشیلد واستیگلیتز مورد بحث ومطالعه قرار گرفت ازآن موقع تاکنون بسیاری از پژوهشگران مدل های مختلفی را برای تجزیه و تحلیل تقاضا برای صنعت بیمه عمر که تماما ناشی از عدم قطعیت در این صنعت میباشد انجام داده اند .وهدف از آن پیدا کردن شرایطی است که تحت آن شرایط انتخاب یا کنار گذاشتن یک بیمه گزار به نفع و یا زیان شرکت بیمه ...

Cx . on Catatorulin . a New Method of Comparing the Oxidative Factor in Vitamin B

IN recent work Gavrilescu, Meiklejohn, Passmore and Peters [1932] have shown that potent vitamin B1 concentrates in very small amount increase the oxygen uptake of avitaminous pigeon's brain in lactate solutions. The effect is proved to be catalytic, because the extra oxygen taken up is far in excess of the amount of vitamin B1 added. To avoid begging the question as to the identity of the oxid...

Vitamin-B1 Deficiency

Cclxxxiii. the Influence of the Length of the Test Period on the Accuracy Obtainable in a Vitamin B1 Test

IT was shown by Coward [1933] that the accuracy obtainable in a vitamin A test by the "increase in weight" method was increased very little by prolonging the test period beyond three weeks. Since then, enough results of vitamin B1 determinations by the method of the "increase in weight" of rats have been accumulated to make it possible to carry out a similarexamination ofthe duration of a vitam...