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Biomedical subjects

B Brodie

Publications and source records attributed to B Brodie.

At least 37 records · Page 2Linked to original sources
PubMed1989

A commitment to care: the development of clinical specialization in nursing.

The development of clinical specialists is traced from the beginning of the profession into the present. Nurse anesthetists were the first clinical specialists to appear in the 1880s. In the 1900s, public health nurses began to specialize as infant, school, industrial, and tuberculosis nurses and midwives. From the 1950s to the present, the growth of critical care specialists paralleled the extraordinary growth of medicine. Underlying all specialization has been nursing's commitment to provide needed care.

History of Nursing↗
PubMed1986

Yesterday, today, and tomorrow's pediatric world.

The paper covers the historical evolution of children's health care beginning in antiquity and proceeding into the present. Various themes emerge including the indifference of society to children and the overt acts of infanticide and child abuse. By the 18th century new information in the field of medicine and chemistry led to improvements in the physical care of children. A spirit of humanism and the rise of the health professions joined forces in the late 19th century to institute important changes in the health status of children. Finally, several current national trends are discussed in light of their potential impact on child health care.

Child↗
PubMed1985

Prevalence of Trypanosoma theileri in cows and fetuses at slaughter.

Blood from 171 pregnant and 65 nonpregnant cows was taken at slaughter for culture and examined during the culturing period for Trypanosoma theileri once a week for 5 weeks. Of the 171 fetuses from the pregnant cows, 119 (69.6%) were greater than or equal to 4 months gestation; blood samples from these fetuses were also taken for culture. Of 236 cows (81 of 171 [47.4%] pregnant and 20 of 65 [30.8%] nonpregnant cows), 101 (42.8%) were culture positive. More of the pregnant than nonpregnant cows were culture positive (P less than 0.05). More beef cows (48.0%) than dairy cows (34.1%) were culture positive (P less than 0.025). Two of the 119 (1.7%) fetus samples were found culture positive. The percentages of positive cultures from Brucella-reactor cows, 18 of 40 (45.0%), and from non-Brucella-reactor cows, 83 of 196 (42.3%), were similar. However, both of the culture-positive fetuses were from Brucella-reactor cows.

Animals↗
PubMed1981

Improved method for selenium determination in biological samples by gas chromatography.

A gas chromatographic assay employing electron-capture detection for the determination of selenium in biological samples is reported. A calibration curve of 4-nitro-o-phenylene-diamine derivative of selenium as a function of peak area was linear from 5-1000 pg. The limit of detection for the electron-capture detector was approximately 0.5 pg. Recoveries of selenium added to various biological materials ranged from 95-105%. This procedure reduces the number of transfers thereby reducing errors associated with losses or contamination. One advantage of the present method is that interfering compounds occurring in previously employed chromatographic methods are eliminated. This procedure can be used for routine microanalysis of selenium. Samples containing less than 2 ng selenium in 200 microliter of biological fluid can be routinely analyzed using this method.

Animal Feed↗
PubMed1977

Echocardiographic and hemodynamic relationships of ejection sounds.

The physiologic correlates of ejection sounds have been studied by simultaneous phonocardiograms, echocardiograms and high fidelity pressure tracings. Ejection sounds associated with semilunar valve stenosis or hypertension of the systemic or pulmonary circulation occur at the moment of complete opening of the aortic or pulmonary valve recorded echocardiographically. The start of opening of these valves occurs at the onset of the pressure rise in the corresponding great vessel and completion of valve opening always occurs on the pressure upstroke. The ejection sound in the presence of stenotic valves occurs with checking of the opening motion of the thickened valve cusps. Although the hypertensive ejection sounds also occur at the precise moment of full opening of the valve it remains to be seen whether this relationship is causal or coincidental.

Aorta↗