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Biomedical subjects

R Lynn

Publications and source records attributed to R Lynn.

At least 55 records · Page 3Linked to original sources
PubMed1991

Attitudes related to work of adolescents in the United Kingdom and Japan.

This study was designed to provide data for notions that differences in achievement motivation in different nations may contribute to differences in national rates of economic growth. The nations investigated were the United Kingdom and Japan as representatives of low and high rates of economic growth in the decades after the end of World War II. Data were collected from college students for motivations and attitudes related to work. British students had higher achievement motivation, while Japanese students had higher competitiveness motivation and strong money beliefs. Differences in career preference between the nations were also presented. The relationship between motivations and attitudes to work with career preference were examined for each nation.

Achievement↗
PubMed1990

The heritability of intelligence in Japan.

Japanese data for 543 monozygotic (MZ) twins and 134 dizygotic (DZ) twins tested for intelligence at the age of 12 give correlation coefficients of .782 and .491, respectively, indicating a heritability of .582. Heavier twins at birth have significantly higher IQs at the age of 12, suggesting that prenatal nutrition exerts a significant effect on intelligence.

Birth Weight↗
PubMed1990

Testosterone and gonadotropin levels and r/K reproductive strategies.

It is proposed that different levels of testosterone are the physiological basis in males of the racial differences in sexual drive which form the core of the different r/K reproduction strategies documented by J. P. Rushton. There is direct evidence for higher testosterone levels in Negroids than in Caucasoids and indirect evidence from the incidence of cancer of the prostate. Prostatic cancer is a function of testosterone levels and shows increasing incidence from Mongoloids to Caucasoids to Negroids. It is further proposed that in females the hormonal basis of differential r/K behaviour lies in the level of gonadotropin.

Birth Rate↗
PubMed1989

The intelligence of six-year-olds in Hong Kong.

Evidence has accumulated to suggest that the mean IQs of Orientals in the United States and in the countries of the Pacific Basin are higher than those of Whites (Caucasoids) in the United States and Britain. This paper presents evidence from IQ tests on 4858 6-year-old Chinese children in Hong Kong. On the Coloured Progressive Matrices these children obtained a mean IQ of 116. Samples from Australia, Czechoslovakia, Germany, Romania, the UK and the US obtain IQs in the range 95-102. It is suggested that these results pose difficulties for the environmentalist explanations commonly advanced to explain the low mean IQs obtained by some ethnic minorities in the United States.

Asian People↗
PubMed1989

Genetic and environmental mechanisms determining intelligence, neuroticism, extraversion and psychoticism: an analysis of Irish siblings.

The theory that shared family environment has an effect on intelligence but no effect on personality was examined by a study of correlations between young adolescent Irish siblings for intelligence, neuroticism, extraversion and psychoticism. The correlations obtained for 386 sibling pairs were 0.48 (intelligence), 0.06 (neuroticism), 0.31 (extraversion) and 0.14 (psychoticism). The correlation for IQ confirms the operation of both genetic and shared family effects on intelligence. The low correlations for neuroticism and psychoticism confirm the thesis that shared family effects have no influence on these traits. They are also inconsistent with an additive genetic model and suggest that non-additive genetic mechanisms are present to make siblings so dissimilar. The higher sibling correlation for extraversion suggests that shared family environment does have some effect on this trait among young adolescents and is also consistent with an additive genetic model.

Child↗
PubMed1986

The complete nucleotide sequence of the structural gene TOP2 of yeast DNA topoisomerase II.

The nucleotide sequence of the gene TOP2 encoding DNA topoisomerase II of the yeast Saccharomyces cerevisiae has been determined. The entire coding sequence of the gene lies within an open reading frame, and there are 1429 amino acids in the single polypeptide protein if translation is assumed to start at the first ATG in this frame. The calculated subunit and molecular mass of the enzyme is 164,000 and 328,000 daltons, respectively. The transcriptional starts of the gene and a polyadenylation site of the message have also been mapped.

Amino Acid Sequence↗
PubMed1986

Tandem regions of yeast DNA topoisomerase II share homology with different subunits of bacterial gyrase.

The nucleotide sequence for the Saccharomyces cerevisiae gene TOP2, which encodes DNA topoisomerase II, was compared with the sequence for bacterial DNA gyrase. The amino and carboxyl terminal halves of the single-subunit yeast enzyme showed homologies with the B and A subunits of bacterial gyrase, respectively, at corresponding positions along the polypeptide chains. Although the two enzymes differ in both quaternary structure and activity, the homology between the two proteins indicates mechanistic as well as structural similarities, and a probable evolutionary relationship.

Bacillus subtilis↗
PubMed1986

Differential assessment and the treatment of alcoholism.

The major objective of this study was to investigate the hypothesis that more effective alcoholism treatment would result from the provision of differential therapy, based on a differential assessment of psychopathology. A total of 135 alcoholics (125 male, 10 female), in-patients of a large psychiatric hospital in Co. Londonderry, Northern Ireland, were allocated to one of three psychopathological subgroups on the basis of their scores on the anxiety, depression and socialization factors of the Clinical Analysis Questionnaire (n = 45 in each group). Fifteen patients from each subgroup were assigned to one of two experimental treatment conditions or a control group. Experimental treatment Group 1 received therapy directed toward their psychopathology, while experimental treatment Group 2 received therapy directed toward their drinking behaviour per se. Therapeutic procedures were behavioural. The control group received only supportive counselling. The results at follow-up nine months later revealed that differences in improvement rates across groups were not statistically significant. A number of subsidiary hypotheses were also investigated and significant differences were found between the three psychopathological subgroups on factors relating to aetiology, course of alcoholism and prognosis.

Alcohol Drinking↗
PubMed1982

Dyphylline aerosol can induce bronchospasm in human asthmatics.

Dihydroxypropyl theophylline (dyphylline) was administered by aerosol in a single dose of 250 mg aerosolized over five minutes to two asthmatic volunteers and in a single dose of 375 mg aerosolized over ten minutes to two other asthmatic volunteers. Serial spirometry was then performed. Marked bronchospasm occurred within ten minutes in two of the subjects, and developed more slowly in another. One subject demonstrated no significant change. Aerosolized dyphylline solution was not an effective bronchodilator, using the methods described in this study.

Adult↗
PubMed1978

A computer system for clinical microbiology.

The Department of Clinical Microbiology at St Thomas' Hospital has been producing bacteriological reports on a computer for more than three years and is now producing some 2300 reports per week. The system is operated entirely by laboratory staff without special training, and involves the use of optical mark reader (OMR) forms as worksheets, automatic validation and release of most reports, the use of local terminals, and scrutiny of reports by pathologists using a visual display unit. The OMR worksheet records not only the final result but also most of the tests and observations made on the samples; it is the only working document used by technicians. One specialist clinic submits its laboratory requests on an OMR form, which is subsequently used to record the results. The reports are printed and also filed in the computer to produce analyses for hospital, laboratory, and clinical management.

Computers↗