Effects of paint sniffing on neuropsychological test performance.

Examined the effects of paint sniffing on neuropsychological test performance by employing 20 sniffers (mean age 18.5 yrs) and 20 comparable nonsniffers. A wide variety of tests were used as measures (e.g., Finger Tapping Test, Trail Making Test, Stroop Color-Word Test, and Peabody Picture Vocabulary Test). It was found that sniffers were significantly lower than controls in the performance of 11 of the 13 test measures, including tests of motor speed, auditory discrimination, visuomotor functioning, and memory. An important finding was the relation found between duration of paint sniffing and level of test performance. According to the results, the longer a person had been involved in paint sniffing, the lower the performance on the neuropsychological tests. (20 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effect of electrode ohmic losses and the role of the electrical connection in bipolar connected parallel plate electrodes

A mathematical model is used to predict current and potential distributions in electrochemical cell banks consisting of bipolar connected parallel plate electrodes. It is shown that the adoption of bipolar connection rather than monopolar connection alleviates the problems of a maldistribution of potential caused by limitations in electrode conductivity for a majority of cells in large cell banks. However, for the outer cells potential distribution is still not uniform regardless of the number of cells in the bank.     

Aumakua: Behavioral direction visions in Hawaiians.

Presents case histories of 3 17–20 yr old Hawaiian school dropouts (2 males and 1 female) who had persistent hallucinations while residing in a Job Corps training center. Desensitization techniques failed to alleviate the hallucinations. Clients were told to face the visions, which were of departed relatives, and listen for messages. The youths were advised to alter their behavior to match cultural and social norms. Though the trainees had no remorse for their past acts, they altered their behavior in accordance with the advice, and the hallucinations stopped. A comment is made regarding clients from different cultures. (20 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Rickets in adult cystic fibrosis with myopathy, pancreatic insufficiency and proximal renal tubular dysfunction

Rickets is reported in a 19 year old white man with cystic fibrosis in whom pancreatic and hepatic involvement was advanced. There was evidence of secondary hyperparathyroidism with proximal renal tubular acidosis, aminoaciduria, phosphaturia and hypophosphatemia. Treatment with oral pancreatic and parenteral vitamin D supplements led to full recovery of the rachitic syndrome and the proximal renal tubular dysfunction.     

The SCEM-Phase-Lock Loop and Ideal FM Discrimination

The conventional phase-lock loop requires a low-pass filter in the loop to eliminate the double-frequency terms which arise in the phase detector. Because of this filtering, the closed-loop bandwidth is necessarily small. A new phase-lock loop is introduced, the SCEMPLL, whose phase detector requires no filtering; hence, this phase-lock loop has a wide closed-loop bandwidth and, resultantly, approaches the performance of an ideal FM discriminator.     

Clinical impressions of enflurane

Enflurane was used in 150 non-selected patients and was found to be a most satisfactory inhalation anaesthetic. Induction and recovery times were rapid and these characteristics, together with its rather pleasant smell, made it readily acceptable to the patient. Although such features suggest that it would be an ideal agent for children, very high concentrations of enflurane were required to produce adequate anaesthesia in infants and small children. Normal sinus rhythm continued following the injection of adrenaline during enflurane anaesthesia and adequate muscle relaxation was obtained for lower abdominal surgery. The degree of metabolic breakdown of enflurane is considerably less than with other inhalation agents and, if this is reflected in terms of minimal renal and hepatic toxicity, there is every reason to believe that enflurane may be preferable to the volatile anaesthetics currently in use.     

Comparison of the potentiation of specific tumor immunity in mice by Corynebacterium parvum or BCG

Two independent studies have compared killed C. parvum (CP) vaccine with viable BCG (Pasteur) and BCG (Glaxo) vaccines, respectively, for potentiation of antitumor immunity when injected with irradiated tumor cells into B6D2F1 AND CBA-T6T6 mice. Both studies concurred that, for a given number of irradiated tumor cells, larger amounts (dry weight equivalent) of BCG than CP were required to produce similar degrees of tumor immunity. Evidence also showed that stronger and more protracted immunity was mediated by CP than by BCG.