Forty young navy recruits were selected for hair mineral analysis on the basis of three criteria: mental test scores, demerits during training, and premature discharge from the navy. Statistical analysis revealed several significant relationships between behavioral criteria and mineral measures. Findings confirmed, in a nonclinical sample, hair…

The author reports on European research concerned with the isolation of pituitary products associated with learning, memory and behavior and suggests implications for further research. (CP)

Reviews the origins of the biochemical process industries, traces their development from cottage to industrial scale, and suggests the developmental trends that are likely to occur. (AL)

Describes research on synergistic effects of alcohol and other drugs, particularly barbiturates. Proposes biochemical mechanisms to explain alcoholics' tolerance of other drugs when sober, and increased sensitivity when drunk. (AL)

Traces the history of the molecular approach to biology from the late 19th century. Describes the development of investigatory techniques as well as of knowledge of molecular structure. (EB)

For steady state resting and mild, steady state exercise conditions, the Haldane transformation is valid and technically preferable to direct calculations of V02. (PBS)

Discusses telomeres, complexes of DNA and protein that form the chromatin at the ends of chromosomes. Highlights telomeres as controllers of chromosome integrity, expendable telomeres, DNA replication requirements and their consequences, protection of structural genes, telomerase as indicators of immortality, cancer cells and other immortals, and…

Four mini-practicals are described in which the effects of temperature and pH on phytase activity are assessed, as well as the enzyme's thermostability and the effect upon stability of simulated digestive tract conditions. Phytase is routinely incorporated into monogastric animal feed to ameliorate the negative nutritional and environmental…

Some metabolic processes such as glycolysis, gluconeogenesis, and lipogenesis are readily understood because they are circumscribed in metabolic pathways that have clearly identifiable beginning points, end products, and other features. Other metabolic pathways that do not appear to be straightforward pose difficulties for students. In part I of…

The concentration dependence of (delta)S term in the Gibbs free energy function is described in relation to its application to reversible reactions in biochemistry. An intuitive and non-mathematical argument for the concentration dependence of the (delta)S term in the Gibbs free energy equation is derived and the applicability of the equation to…

The standard introduction to stoichiometry and simple exemplars can motivate students to learn the stoichiometric studies and the condensation reaction that occurs between amino acids to form the peptide bond. This topic can be integrated into general chemistry courses as an alternative to inclusion of a separate biochemistry course that could be…

The effect of substrate concentration on the rate of enzymatic reaction was investigated and typical Michaelis-Mentin kinetics was observed during the first week. The first order reaction at relatively low concentrations of ethanol and the pseudo zero-order reaction at high concentrations of ethanol were emphasized.

This paper reports on the results of a move analysis [Swales, J. (1990). "Genre analysis." Cambridge: Cambridge University Press] of 60 biochemistry research articles. First, a corpus was systematically compiled to ensure that it represents core journals in the focused discipline. Then, coding reliability analysis was conducted to…

Olfactory perceptual learning is a relatively long-term, learned increase in perceptual acuity, and has been described in both humans and animals. Data from recent electrophysiological studies have indicated that olfactory perceptual learning may be correlated with changes in odorant receptive fields of neurons in the olfactory bulb and piriform…