When this book was first published in 1996, the pollution of the earth's freshwater habitats was, as it is now, a topic of major concern. This synthesis considers the effects of pollutants on aquatic animals via a series of research and review articles that present experimental evidence of sublethal and lethal effects of a range of toxicants at the physiological, cellular and subcellular levels, and that explore techniques for detection of pollution damage. Topics covered include routes of uptake of toxicants; the effect of acute and chronic exposure to toxic metal ions, particularly zinc, copper and aluminium, with emphasis on the mechanisms of toxicity and responses to chronic exposure to sublethal levels; the impact on fish biology of two chemicals of current concern, nitrites and polyaromatic hydrocarbons, which may act as oestrogenic substances or potent mutagens; and in vitro studies of the mechanisms of toxicity at the cellular and subcellular level, including damage of DNA, usi
精油或芳香油用在人體上從有人類歷史開始就已存在，威廉‧亞諾泰勒在本書中細細述說精油的歷史起源，以其身為國際芳香治療權威的身分，介紹芳香治療的技術和實際運用，並藉科學論證和病例來闡述其學說，形之於平實易讀的文字。精油的使用，應該強調它絕不能用來取代一般的醫藥，而只是一種輔助，病症必須先經過診斷，而且只有受過適當訓練的合格人士才能做診斷。 威廉‧亞諾泰勒(W. E. Arnould-Taylor) 為
This collection of thirteen essays is in honor of the distinguished scholarly career of Melvyn New, professor emeritus of the University of Florida. The first eight essays offer various critical persp
