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Biomedical subjects

S Blackman

Publications and source records attributed to S Blackman.

At least 19 recordsLinked to original sources
PubMed1989

The Gamblers Treatment Clinic of St. Vincent's North Richmond Community Mental Health Center: characteristics of the clients and outcome of treatment.

Data were analyzed from gamblers treated as outpatients: 128 for whom admission data were available and 88 for whom both admission and termination data were available. This group consisted mostly of White males. The average age of the clients was about 42 years. These clients were frequent and heavy bettors whose lives were deeply disrupted by gambling. The clients reported significantly less gambling at termination of treatment than they did at initiation. Improvements in social relations were reported at termination of treatment. There was some evidence that improvements in life-style were related to reports of less gambling at termination of treatment.

Adult↗
PubMed1988

A simplified diet for assaying methionine activity.

Several experiments were undertaken to evaluate diets that could be used to bioassay methionine activity in various compounds. The following semipurified diets were tested: a corn-soy-gelatin basal (CSG) diet supplemented with essential amino acids (EAA) at 23% crude protein (CP); a soybean meal diet at 23% CP; and a soybean meal diet at 15% CP with all the protein coming from dehulled soybean meal and starch, glucose, and fat used as sources of energy. The CSG and 15% CP soybean meal diets proved to be sensitive in their response to methionine supplementation. Birds fed the CSG diet supplemented with methionine and tryptophan were smaller (P less than .01) than birds fed the 23% CP soybean meal diet, thus suggesting that something other than EAA was limiting the performance of birds fed this diet. Based on sensitivity to methionine supplementation, simplicity and cost of diet, the low protein soybean meal diet seems most appropriate for methionine bioassays.

Animal Feed↗
PubMed1987

Assay for estimating the potency of various methionine-active sources.

A number of experiments were conducted to verify the sensitivity of a low protein (15%) soybean diet for assaying methionine (Met) activity. Although a good response in weight gain and feed:gain ratio was obtained with the addition of supplemental Met to the basal diet, an inconsistent response was obtained when the efficacies of DL-Met and liquid methionine hydroxy analogue (MHA were tested). The addition of nonessential amino acids produced a variable response when added to diets containing MHA, with no difference in the response to aspartic acid or a glycine/glutamic acid mix as nitrogen sources. The addition of glycine to diets supplemented with DL-Met resulted in improved performance with the highest level of Met supplementation, thus suggesting that glycine may be alleviating some deficiency in the high supplemental Met diet. Based on the results of several experiments, MHA was judged to be less efficient than DL-Met on a weight basis.

Animal Feed↗
PubMed1982

Social perception of caloric value.

Studies on obesity and overweight measure the actual caloric amount in the foods selected or consumed. However, the food choices of individuals partly depend, if weight is a concern, on their social perception of caloric values of various foods. The study concerned the accuracy of 53 males and 82 females of various weight categories in their perception of the caloric content of various types of food. The more females weigh the more calories they perceive in food while the more males weigh the less calories they perceive in food. Both males and females overestimate the caloric content of desserts, particularly in comparison to main dishes like meat and potatoes.

Adolescent↗