A comparison of the efficiency of three anesthesia circle systems

To assess the sensitivity of standard echocardiography in detecting ventricular motion abnormalities in patients with coronary artery disease (CAD) without prior myocardial infarction, 56 consecutive patients with a history of angina pectoris were studied during an angina-free period. In the 48 patients with adequate echocardiograms, the amplitude of septal and posterior wall motion in the high, mid, and low left ventricle was determined and used to predict prospectively in a blinded fashion the sites of angiographically-determined CAD. Twenty-eight of 35 patients (80%) with disease of the left anterior descending artery (LAD) had diminished interventricular septal motion (P less than 0.001) and 14 of 27 patients (52%) with disease of posterior vessels had diminished posterior wall motion on echocardiogram. When abnormalties of echocardiographic wall motion were compared with left ventriculography, the results were similar. Echocardiography may aid in predicting the presence and distribution of CAD, especially LAD disease.     

Predicting preschoolers' peer behavior and status from their interpersonal strategies: A comparison of verbal and enactive responses to hypothetical social dilemmas.

The purposes of this study were (a) to compare a verbal and an enactive procedure for assessing preschool children's social strategies in hypothetical situations in terms of their ability to predict social behavior with peers and peer acceptance and (b) to examine some of the psychometric properties of the two assessment methods. Children's responses to a set of hypothetical social situations were elicited both with puppets and props (enactive assessment) and with a set of pictures (verbal assessment). The responses were rated in terms of their friendliness and assertiveness. Enactive friendliness ratings contributed significantly to regression equations predicting teacher and observer ratings of prosocial and aggressive behavior but not to peer group acceptance, whereas the verbal method contributed little predictive power beyond that provided by the enactive ratings. Implications for social skill assessment and intervention with children are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A comparative study of plasma 17beta-oestradiol, progesterone, placental lactogen and chorionic gonadotrophin in abortion induced with intra-amniotic prostaglandin F2alpha

Serial estimations were made in plasma of 17beta-oestradiol (E2), progesterone and human placental lactogen (HPL) in 43 patients and of human chorionic gonadotrophin (HCG) in 34 patients during mid-trimester abortions induced with intra-amniotic prostaglandin F2alpha (PGF2alpha. Mean plasma concentrations of all the hormones showed a progressive fall after PGF2alpha. There was no relationship between the fall in levels of progesterone, HPL and HCG and the induction-abortion interval, signs of fetal distress or of intrauterine fetal death. Both the control level and the rate of fall of E2 were related to the induction-abortion interval and a rapid decline preceded intrauterine fetal death. The relationships of the progesterone/E2 ratio and the amniotic fluid volume/progesterone ratio to the induction-abortion interval were examined. The variation in the time at which significant falls in the concentration of individual hormones occurred was probably related to their respective half-lives in plasma.     

Prevention of progressive myopia

Changes in sugars and polyols content of fruits and leaves of three cultivar of peach, from fruit set to over maturity, have been studied. Sucrose, glucose, fructose and sorbitol were found both in leaves and in fruits. In fruits, inositol and galactose were also found but only in traces. Redhaven fruits show the greatest total sugars content (sorbitol included) (866 mg/g.d.m.)followed in order by Favorita and Prodigiosa ones (771 and 694 mg/g.d.m.) For Redhaven and Favorita fruits, at harvest matuity, the sugar present in greatest amount was sucrose followed in order by glucose, fructose and sorbitol. On the contrary, in Prodigiosa fruits the order was sucrose, sorbitol, fructose and glucose. In the leaves of three cultivar, the compound present in the greatest amount was sorbitol followed by sucrose, glucose and fructose. The sucrose decrease in leaves during fruit growth could confirm that the disaccharide is the main sugar transported from the leaves to the fruits.     

Lymphocytes' cytotoxicity towards cells of human lymphoblastoid lines in patients with rheumatoid arthritis and systemic lupus erythematosus

A research study and discussion of antiinterferon immunoglobulin in the treatment of rheumatoid arthritis and systemic lupus erythematosus, and its possible value in the treatment of allergic diseases, autoimmune diseases and other diseases where it is presumed there may be an autoimmune genesis.     

Comparison of measurements of the characteristics of directional microphone hearing aids in an IAC test room and an anechoic chamber

The purpose of this study was to assess the possibility of measuring directional microphone hearing aids (DMHAs) using standard hearing aid test instruments in a sound field environment. The use of DMHAs is increasing and research has shown that under certain difficult listening situations, superior results are obtained by hearing impaired individuals with directional versus omnidirectional microphone arrangements. However, valid electroacoustic evaluation of the DMHAs cannot be accomplished using the conventional hearing aid test box. The ideal environment for such evaluations is an anechoic chamber, a facility not found in most audiological clinics. Results show that if the proper precautions are observed, the electroacoustic characteristics of DMHAs can be measured in a sound field environment using conventional hearing aid test instrumentation. Validation of this procedure was carried out by comparing sound field results with those obtained in an anechoic chamber.     

Further studies of degossypolized cottonseed meal as a source of plant protein in rabbit feeds

Degossypolized cottonseed meal was fed to mature female rabbits throughout four successive litters, using a split-plot randomized block design. When used as a replacement for soybean meal, at levels of 4, 7, 10 and 13% of the diet, no significant diet responses were found in the analyses of total litter weaning weight, average individual weaning weight, percentage mortality, number weaned, or feed conversion. However, block and litter effects on litter weight were significant, suggesting genetic differences, and the means for litter weights and mortality suggested an adverse effect at the 10 and 13% levels. Results indicated that at levels of 4 and 7% degossypolized cottonseed meal may serve as a satisfactory substitute for soybean meal in the rabbit diet.