Zinc mercury(II) tetrakis(selenocyanate)

Zinc and Zinc Compounds

Zinc is an essential element in people’s diet. Too little zinc can cause health problems, but too much zinc is harmful. The U.S. Recommended Dietary Allowance (U.S. RDA) for zinc is 5 15 milligrams a day for humans. Not enough zinc in one’s diet can result in a loss of appetite, a decreased sense of taste and smell, slow wound healing and skin sores, or a damaged immune system. Young men who do...

Immunobiology of zinc and zinc therapy.

In a recent article in Immunology Today, Wellinghausen et al.1 reviewed the various interactions between zinc and the immune system. The authors clearly pointed out that zinc (zinc ions and/or chelated zinc) plays an important role in the maintenance of immune function. Zinc deficiency results in hypoplasia of the immune system, impaired immune response, poor wound healing, diminished T-cell de...

Labile Zinc and Zinc Transporter ZnT

Severe zinc depletion of Escherichia coli: roles for high affinity zinc binding by ZinT, zinc transport and zinc-independent proteins.

Zinc ions play indispensable roles in biological chemistry. However, bacteria have an impressive ability to acquire Zn(2+) from the environment, making it exceptionally difficult to achieve Zn(2+) deficiency, and so a comprehensive understanding of the importance of Zn(2+) has not been attained. Reduction of the Zn(2+) content of Escherichia coli growth medium to 60 nm or less is reported here ...

افزودن امکان جستجوی a* به زبان مدلسازی zinc

مسایل تصمیم گیری با محدودیت به دلیل کاربردشان هم در حوزه های علمی و هم در صنعت و تجارت، مورد توجه قرار گرفته است. در مواجهه با این مسایل باید دو گام اساسی برداشته شود: ایجاد مدل و حل آن. این مسایل عمدتا پیچیده هستند و اغلب یافتن یک مدل مناسب برای آن ها مشکل است. از طرف دیگر فضای جستجوی آن ها بزرگ است و به صورت نمایی با سایز مساله رشد می کند. پس باید برای حل آن ها از روش های کارایی استفاده شود ک...