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Biomedical subjects

T Lord

Publications and source records attributed to T Lord.

11 recordsLinked to original sources
PubMed2000

College students' performance on associated, corresponding tasks for horizontality.

500 college biology students were asked to predict the axisymmetry (horizontal-vertical position) of the water surface and a swimming goldfish in a masked, sealed container. Subjects were shown the fish submerged in the semifilled container before it was slipped into a terry cloth stocking. The researcher then asked subjects to predict the position of the fish and the water surface as the sealed container was rotated to different angles. Many college students did not understand that liquids and submerged organisms remain invariantly horizontal regardless of the rotation of the container.

Curriculum↗
PubMed1997

Comparing scores on spatial-perception tests for intercollegiate athletes and nonathletes.

Many researchers believe that the amount of testosterone in the blood is directly associated with visuospatial perception. If this is the case, men and women who participate in intercollegiate athletics (and have high androgen levels) should show significantly better spatial ability than nonathletes. Two paper-and-pencil tests to measure spatial ability were given to 200 men and women on university sport teams. Men's scores, compared to national norms, were significantly lower than those in the national sample but no difference was found between the women athletes and the national sample or between the male and female athletes.

Adolescent↗
PubMed1991

Monthly fluctuation in task concentration in female college students.

50 university women with consistent and rhythmic menstrual cycles were given Golden's version of the Stroop color-word test to evaluate their concentration accuracy. 50 male undergraduates were also tested as a control sample. The participants took the Stroop test every seven days for four consecutive weeks to allow examination of whether change in the color and word naming activity occurred. A split-plot analysis of the variance of the scores gave a significant difference for the sequence in which the tests were taken, the measures recited during the testing, and the sex of the respondent. When the values for the women were ordered to correspond to stages of their menstrual cycle, the over-all mean accuracy rose slowly to midcycle, then dropped as menses approached. This supports the hypothesis that the women's concentration was at the lowest level during the latter part of the monthly cycle. Women scored significantly higher on the color and word naming task on the Stroop test than men.

Adult↗
PubMed1989

Identification of self through olfaction.

To study olfactory communication in humans, 100 undergraduates ranging from age 18 to 45 yr. wore freshly washed, identical T-shirts continuously for 24 hr. During this time, the participants did not bathe or shower or apply any scent producing substance to their bodies, i.e., deodorants, perfumes. Upon retrieval, each shirt was placed in an identical brown bag. In groups of 10, each participant attempted to identify the T-shirt he had worn the previous 24 hr. The task was administered separately for each individual so that no participants knew the choice by a previous colleague. Analysis shows that the participants were able to identify correctly their own shirts on the first try three-quarters of the time. Furthermore, sex, age, smoking habit of the participant, and menstrual cycle phase in the women were factors in successful outcomes.

Adolescent↗
PubMedDate not supplied

Hydrolysis studies on oleamide in simulated gastrointestinal fluids.

Hydrolysis studies using simulated gastrointestinal fluids have been performed on oleamide, an important fatty acid amide slip additive used in plastics food packaging. Experiments have been conducted using the simulated gastrointestinal fluids, specified by the Scientific Committee for Food for hydrolysis studies, and with slightly modified preparations believed to be more representative of the in vivo situation. The degree of hydrolysis in simulated gastric fluids was found to be negligible after incubation for 4 h at 37 degrees C. Addition of 'bile salts' to simulated intestinal fluid was found to significantly increase the degree of hydrolysis to about 95% loss of oleamide after incubation for 4 h at 37 degrees C. Stoichiometric formation of oleic acid, an innocuous substance, was also demonstrated. It has therefore been concluded that ingestion of the very low levels of oleamide expected to migrate into most foods from food packaging is unlikely to pose a threat to the health of the consumer.

Bile Acids and Salts↗
PubMedDate not supplied

A controlled trial of nurse counselling on lifestyle change for hypertensives treated in general practice: preliminary results.

1. We assessed whether a lifestyle modification programme implemented by nurse counsellors in a general practice setting would improve blood pressure (BP) control in treated hypertensive patients. 2. Patients were randomized into a control group or one of two intervention groups who received either a high or low level of counselling. 3. Patients in the intervention groups had appointments every 4th week for 18 weeks. The low intervention group had one practice appointment and five telephone counselling appointments while the high intervention group had six appointments in their general practice. The patients were counselled using a stage of change behavioural model and motivational interviewing to: reduce alcohol consumption, dietary fat and salt intake and weight; cease smoking; and increase leisure time physical activity. 4. Compared with controls the low intervention group showed significant decreases in alcohol and salt intake while the high intervention resulted in significant decreases in both weight and BP. 5. We conclude that nurse counselling targeted to specific aspects of lifestyle can improve BP control and weight in treated hypertensive patients over 18 weeks. Its longer term effectiveness in the management of hypertension warrants further evaluation.

Behavior Therapy↗
PubMedDate not supplied

Rehab managers prepare to meet the challenge of the 90s.

In this article, Health Systems REVIEW reports on the changes taking place in the lively rehabilitation hospital industry. Although exempt from the Medicare prospective payment system, rehabilitation hospitals are feeling the payment pinch experienced by their acute-care and psychiatric brethren in the delivery of government-paid services, as well as increased pressures from private payers.

Insurance, Health, Reimbursement↗