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Biomedical subjects

T H Howell

Publications and source records attributed to T H Howell.

At least 55 records · Page 3Linked to original sources
PubMed1985

Effects of a curriculum change on dental student attitudes.

This study compared student attitudes before and after the change from a four- to a five-year D.M.D. program at the Harvard School of Dental Medicine. Three instruments were used to collect data from eight successive classes, the last four enrolled in the original program (classes of 1979-1982) and the first four enrolled in the new program (classes of 1984-1987). Overall participation rate was 89 percent. The scales were: (1) the Survey of Interpersonal Values (SIV); (2) a bipolar adjective checklist, The Job of Dentistry, which reveals views of the profession, and (3) Career Plans. The same set of scales was administered for a second time, upon graduation, to the classes of 1980-1982. Only two changes were noted between first and second administrations for these three classes: at graduation, the job of dentistry was viewed as more sales-oriented and more physical. Comparing the two programs, students in the new (five-year) program scored significantly higher on leadership in the Survey of Interpersonal Values. Five-year students viewed the job of dentistry as significantly more changing, complicated, unusual, intellectual, scientific, interesting, and involving more public speaking, and their career plans tended to be more academically oriented.

Attitude↗
PubMed1983

The skin temperature gradient in the upper limbs of old women.

In the upper limbs of 103 convalescent old women, there was a fall of skin temperature between axilla and thumbs equal to 4.8 degrees C. Variations in temperature became wider from proximal to distal sites, being 3.2 degrees in the right axilla and 3.4 degrees C in the left; compared with 14.0 degrees in the right thumb and 13.6 degrees C in the left. Skin temperature could be correlated with circumambient air, but not with age.

Aged↗
PubMed1982

Brain weights in septuagenarians.

The brains of 90 septuagenarians were weighed and examined at autopsy. The heaviest weighed 2110 g and the lightest 907 g. They were classified by sex and by pathologic changes. Many of the brains were lighter than the accepted normal, the majority being between 1100 and 1199 g. This result is compared with the findings among the brains of 102 octogenarians and 29 nonagenarians previously reported.

Aged↗
PubMed1981

Heart weights among octogenarians.

The weights of hearts among 110 octogenarians were studied. At autopsy they ranged from 174 to 785 gm, which is more than the customary norm for adults. In only 15 subjects were the hearts considered completely normal. Other hearts showed hypertrophy, friable muscle, fatty infiltration, brown atrophy, a flabby myocardium, valvular changes, and atheroma or calcification of the coronary arteries. The frequency of these changes and their relationship to heart weight are discussed. A previous study of heart weights among 39 nonagenarians had shown weights ranging from 159 to 539 gm --- somewhat less than those among the octogenarians. Heavy heart weights are common in these two age groups.

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PubMed1981

Brain weights in octogenarians.

The brains of 102 octogenarians were weighed and examined at autopsy. The heaviest weighed 2075 gm, and the lightest 818 gm. They were classified by sex and by the pathologic changes. These brains were definitely lighter than the accepted normal, but somewhat heavier than a previously reported series of nonagenarian brains which showed a greater percentage of pathologic lesions.

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PubMed1981

Multiple lesions in stroke patients: a study in morbid anatomy.

In a series of 302 autopsies, 47 elderly subjects during life had shown signs or symptoms suggesting cerebrovascular accidents. At autopsy they showed no less than 506 pathologic lesions, an average of 10.7 per patient. Of these lesions, 36.5 percent were cardiovascular, 15.8 percent pulmonary, 11.0 percent renal, 9.0 percent cerebral, 8.3 percent hepatic, 6.5 percent gastrointestinal or pancreatic, 5.0 percent genital, 3.5 percent splenic, and 4.4 percent in other tissues. Multiple autopsy findings are the rule and not the exception in patients of the age group in which strokes are liable to occur.

Aged↗
PubMed1981

Alveolar bone loss due to open interproximal contacts in periodontal disease.

Ninety patient records were examined in order to determine radiographically whether an association between open interproximal contacts and increased alveolar bone loss exists. The amount of alveolar bone in the open contact site was compared to the amount of alveolar bone in the contralateral closed contact site. Open interproximal contacts were not found to be associated with increased alveolar bone destruction in Class, I, III and IV periodontal disease groups. In group of 53 Class II cases, open contacts were found to be associated with an average of 2.4% less relative bone height than contralateral closed contacts. This difference was significant at the 0.01 to 0.02 level.

Adult↗
PubMed1980

Multiple primary neoplasms in the elderly.

The frequency of multiple primary neoplasms in the elderly was studied in three personal series of autopsy cases. Comparison with the results of other workers showed a range of 0.6 percent to 36 percent of all neoplasms, verified at autopsy.

Aged↗
PubMed1980

Alveolar bone destruction due to overhanging amalgam in periodontal disease.

Interproximal bone loss around 100 teeth with overhanging amalgam restorations was measured and compared to interpoximal bone loss around 100 contralateral teeth without overhanging amalgams. The latter served as controls. Overall, bone loss was found greater around teeth with overhangs (P < 0.01). This finding was true for all periodontal disease types. However, the more severe the periodontal disease the greater the role of the overhang appeared. Small overhangs, unlike medium and large overhangs, did not result in increased alveolar bone loss around the affected tooth.

Adult↗
PubMed1979

Half-way houses.

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Aged↗