Search PubMed⌕ Search

Biomedical subjects

D Dennison

Publications and source records attributed to D Dennison.

At least 55 records · Page 3Linked to original sources
PubMed1977

The effects of selected field experiences upon the drinking behavior of university students.

A study was conducted to determine the effects of selected field experiences upon the driking behavior of university students. Students in the experimental groups were required to participate in alcohol related field experiences, whereas students in the control group were not. An anonymous self-report inventory was used to assess driking behavior. The inventory was administered before and after the field experiences to determine impact. Significant differences occurred in the frequency of perceived intoxication when inventories of the experimental groups were compared with the control groups. No significant differences resulted in the number of alcoholic beverages consumed and the number of alcoholic beverages that would be consumed at a hypothetical party. Students in the experimental groups reported a lower utilization of automobiles during and after driking. The selected field experiences had a positive effect upon the alcohol education program. As result of this study certain implications related to field activities were identified that are conditional to the behavioral change process via instruction in alcohol education. The activities can be designed to provide first hand knowledge and direct interaction experiences with individuals who have experienced alcohol problems. The activities assisted the students in understanding the parameters related to alcohol problems including economic loss, family problems and other disruptive behaviors. The activities were viewed by the students as helpful in thie own clarification of values. For these reasons, the field activities were deemed to be an important aspect of the program that improved the responsible drinking behavior of the students.

Alcohol Drinking↗
PubMed1976

Preliminary studies in the clinical use of a bicarbonate containing growth medium for Neisseria gonorrhoeae.

A recent study from our laboratory demonstrated that the gaseous carbon dioxide atmosphere used for growth of Neisseria gonorrhoeae could be replaced by the addition of sodium bicarbonate directly to the growth medium. A comparative growth study was initiated using the Transgrow system and the bicarbonate system, Nei-Carb. The Nei-Carb system displayed several obvsiou advantages over the Transgrow system. It required less incubation space, the bicarbonate concentrations can be regulated more readily than concentration of gaseous CO2, and individual plates can be examined without disturbing the atmosphere of other incubating plates. The preliminary results indicate that the Nei-Carb system can be utilized as a medium for primary isolation of gonococci. For every positive culture detected by the Transgrow system a corresponding positive culture was detected by the Nei-Carb system. Moreover, four strains of N gonorrhoeae grew in the Nei-Carb system that would not grow in the Transgrow system using gaseous CO2. On further examination of these strains it was found that they required a much higher concentration of bicarbonate for growth than did those which grew readily in a gaseous CO2 atmosphere.

Bicarbonates↗
PubMedDate not supplied

Infections in haematological malignancies: an autopsy study of 72 cases.

Autopsy material from 72 patients with haematological malignancies treated in India was reviewed. Thirty-seven patients (51%) had documented infections; 20 (27%) had bacterial infections, 14 of which were Gram-negative organisms (Pseudomonas species in 10); tuberculosis was present in 2 patients (2.7%). Twenty-one patients (29%) had systemic fungal infections; invasive pulmonary aspergillosis and gastrointestinal candidiasis were present in 10 patients each. Only 3 patients (4%) had viral infection, all of which were due to cytomegalovirus. Eleven patients (15%) had polymicrobial infections. No patient had any parasitic infection. Systemic fungal infections due to Aspergillus and Candida predominated, while Gram-negative bacterial infections were also common.

Adolescent↗
PubMedDate not supplied

Pediatric hyperfibrotic myelodysplasia: an unusual clinicopathologic entity.

This study is presented to highlight a rare pediatric bone marrow pathology in which features of bone marrow dysplasia coexist with severe fibrosis in a clinical setting of fever, anemia, and organomegaly. Fourteen children (nine males, five females) clinically presented with fever, anemia, and hepatosplenomegaly. Extensive bone marrow fibrosis with dysplastic features was seen in their marrow precursor cells. Peripheral blood smears showed teardrop poikilocytes thrombocytopenia, and occasional blasts. In conclusion, pediatric hyperfibrotic myelodysplasia is a distinct clinicopathologic entity. Myeloproliferative and dysmyelopoietic syndromes are complex disorders that are interrelated and not always easily diagnosed only on morphologic grounds.

Adolescent↗