Coliphage Ti of Demerec and Fano (1945) has been found to be closely related serologically to dysentery phage D20 of Burnet (1933). A comparative study of the properties of these two phage strains has been made in order that the distinctive characteristics of the T1,D20 species may be better defined. It is unfortunate that of a large number of enteric phages studied, these two were the only str...

We are witnessing a significant challenge to immunology's basic tenet, the immune self. Such an 'entity' is increasingly regarded as polymorphous and ill defined as transplantation biology and autoimmunity have demonstrated phenomena that fail to allow faithful adherence to a strict dichotomy of self/nonself discrimination. Instead of searching for elusive criteria of 'self' and 'other', immune...

objective: tyrosinase as the key enzyme in melanin biosynthesis, involves in determining the color of mammalian skin and hair. a variety of dermatological disorders, come up from an unnecessary level of epidermal pigmentation. plants are low-cost and rich sources of active compounds.  methods: more than seventy native plants collected from the central region of kurdistan province collected. inh...

Title of dissertation: A PHYLOGENETIC AND BIOGEOGRAPHIC ANALYSIS OF SANGUISORBEAE (ROSACEAE), WITH EMPHASIS ON THE PLEISTOCENE RADIATION OF THE HIGH ANDEAN GENUS POLYLEPIS. Malin Sofia Kerr, Doctor of Philosophy, 2004 Dissertation directed by: Dr. Charles F. Delwiche Dr. James L. Reveal A phylogenetic and biogeographic analysis of the tribe Sanguisorbeae (Rosaceae) was conducted with emphasis o...

Objective: Tyrosinase as the key enzyme in melanin biosynthesis, involves in determining the color of mammalian skin and hair. A variety of dermatological disorders, come up from an unnecessary level of epidermal pigmentation. Plants are low-cost and rich sources of active compounds.  Methods: More than seventy native plants collected from the central region of Kurdistan province collected. Inh...

Objective Diabetes mellitus is manifested by hyperglycaemia. Different treatments such as diets and drugs are recommended for diabetes control. For various reasons in recent years traditional plant (herbal) therapies as prescribed by indigenous systems of medicine with different mechanisms have commonly been used. The digestive enzymes such as alpha glucosidase are among these herbal remedies....