The Antirachitic Properties of Irradiated Feedstuffs

The Antirachitic Value of Irradiated Cholesterol

As is well known, young rats can be regularly protected from rickets by the addition to their dietary of 1 mg. or less of irradiated cholesterol. Various experiences led us to believe that this cholesterol was a mixture of active and inactive material and that an attempt should, therefore, be made to fractionate it. In the first place prolonged irradiation gradually inactivates cholesterol whic...

The Antirachitic Value of Irradiated Choles- Terol and Phytosterol

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Irradiated Milk: the Energy Requirements for Antirachitic Activation

The irradiation of milk is a complex problem from the physical, optical, and photochemical standpoint. The knowledge concerning the antirachitic activation of pure sterols with ultra-violet radiation cannot be applied directly to milk for several reasons. The provitamin or activatable substance as it exists in milk is associated with other materials in solution and suspension. Such substances m...

The Antirachitic Action of Cod Liver Oil and Irradiated Ergosterol in Parathyroidectomized and Thymectomized Rats

Cod liver oil and Viosterol in therapeutic doses are antirachitic in the absence of the parathyroid gland, or of the thymus, or of both.