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Biomedical subjects

B Thomson

Publications and source records attributed to B Thomson.

10 recordsLinked to original sources
PubMed1992

Review of the American College of Radiology--National Electrical Manufacturers' Association standards activity.

The American College of Radiology and the National Electrical Manufacturers' Association published the ACR-NEMA Digital Imaging and Communications Standard in 1985. Implementations are just now becoming available. During this time, working groups of the committee responsible for the standard have been very active. An expanded version of the standard was published in 1988 and a third version, to be known as Digital Imaging and Communications in Medicine (DICOM), is being prepared for publication in 1992. This paper briefly reviews the history of the standard, describes recent activities, outlines the extensions planned for the DICOM standard, and describes the participation of the committee in international radiological imaging standards activities.

Diagnostic Imaging↗
PubMed1990

Clinical and laboratory findings in the Paul-Bunnell negative glandular fever-fatigue syndrome.

Forty-one patients with recurrent fatigue were studied for evidence of symptom clustering, abnormal laboratory findings and infection with novel viruses. Symptom enquiry and investigations were repeated 4 months later. Four patients were found to have diseases compatible with their symptoms. In those remaining, an initial acute onset of symptoms was associated with an intermittent course, tender glands and a raised number of T suppressor lymphocytes. Raised numbers of T suppressor lymphocytes at follow-up correlated with resolution of symptoms. Antibodies to human herpesvirus 6 (HHV-6) were found in 75% of the patients as compared to 53% of a control group and more patients than controls were strongly seropositive. Some patients with chronic fatigue have a pattern of illness which suggests glandular fever, although acute infection with Epstein-Barr virus (EBV) is not demonstrated. Primary or reactivation infection with HHV-6 may have a role in this syndrome.

Adolescent↗
PubMed1988

Some major transport mechanisms of insect absorptive epithelia.

1. After hormonal stimulation, fluid reabsorption (JV) in locust hindgut from the KCl-rich, low-Na primary urine is driven primarily by an unusual mucosal electrogenic Cl- pump (JCl). 2. Cyclic-AMP increases JCl and also mucosal K+ and basolateral Cl- conductances, so that KCl absorption exceeds that of Na+ in rectum but not ileum. 3. Mucosal entry of Na+ occurs by exchange for NH4+ (H+), by cotransport with some neutral amino acids, and through putative channels. 4. However, transport of proline, the predominant organic substrate, is largely Na-independent and drives a sizable component of Jv in rectal but not ileal segments. 5. There is evidence for hormonal control of Na+ reabsorption in ileum but not rectum.

Absorption↗
PubMed1986

The importation, transmission, and moderation of stress in the family system.

Despite its importance in community psychology, the stress process is still viewed primarily as an individual-level phenomenon, little research being conducted on the dynamics of stress in a social system such as the family. Propositions derived from a model of family stress were tested using data from a cross-sectional survey of family triads (father, mother, and adolescent). Two measures of distress were related significantly to both macro-and microstressors, and perceived social support did not buffer this relationship. Stressors endogenous to the family were significantly associated with those exogenous to the family (stressor importation hypothesis); contrary to prediction, this relationship did not vary across family members or family types (high vs. low cohesion). Distress in some family members was significantly associated with stressors experienced by other family members (stress transmission hypothesis); this relationship did not vary across family types but did vary across family members to some extent in that stress was transmitted from adolescents to parents to a greater degree than vice versa.

Adaptation, Psychological↗
PubMed1985

Optimality versus complications: assessing predictive values of perinatal scales.

In this study, 2 optimality scales and 3 complication scales were used to obtain perinatal risk scores for 103 infants. The scores generated by the 5 scales were compared for accuracy in predicting a variety of traditional and frequently used neonatal and infant outcome measures. The results were interpreted as showing an advantage in favor of the 3 complication scales in the number and variety of outcome measures that could be predicted from the scale scores.

Adolescent↗
PubMed1971

General practice.

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Australia↗