Drinking water--doubts about quality.

Doubts about dementia diagnoses.

Doubts about quantal analysis.

TO THE EDITOR: In an impressive series of articles, Korn and co-workers (e.g., Faber and Korn 1988; Faber et al. 1992, 1995; Korn et al. 1981, 1982, 1987; reviews in Korn and Faber 1991, 2005) described electrophysiological recordings performed on goldfish Mauthner cells and adjacent inhibitory interneurons. In their founding article, published in the Journal of Neurophysiology, Korn and collea...

Appreciating doubts about HIV medicine

Received 25 September 2015; Accepted 6 November 2015; Published 8 December 2015 Copyright: – 2015 Newman CE; licensee International AIDS Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium...

Guidelines for Drinking-water Quality

398 Nitrate and nitrite Nitrate (NO 3 ) is found naturally in the environment and is an important plant nutrient. It is present at varying concentrations in all plants and is a part of the nitrogen cycle. Nitrite (NO 2 ) is not usually present in significant concentrations except in a reducing environment, as nitrate is the more stable oxidation state. It can be formed by the microbial reductio...

Guidelines for Drinking-water Quality

IARC classified PCP in Group 2B (possibly carcinogenic to humans) on the basis of inadequate evidence of carcinogenicity in humans but sufficient evidence in e xperimental animals. There is suggestive, although inconclusive, evidence of the carcinogenicity of PCP from epidemiological studies of populations exposed to mixtures that include PCP. Conclusive evidence of carcinogenicity has been obt...