Reality testing by schizophrenics.

Compared 15 schizophrenics with 15 controls of similar mental test status and educational background on 2 classes of elementary problems from a series of artifact testing tasks monitored by an automatic problem programing machine called the Heuristic Evaluation Problem Programmer. In terms of an index that reflects the ability to conduct the required inquiry efficiently, the groups did not differ significantly on statistical tests that employed between-Ss differences as the error variance. Repeated measures of group differences showed a small, but statistically significant, superiority for the control Ss. Intercorrelations between scores on various problem sets indicated that the tests were reliable. During the 1st 3/4 of the problem series, there was a marked inefficiency of performance in a small group of paranoid schizophrenics as compared with a group of chronic undifferentiated schizophrenics. (17 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Review of Clinical management of memory problems.

Reviews the book, Clinical management of memory problems by Barbara A. Wilson and Nick Moffat (1984). This short and serviceable volume amalgamates a series of papers presented at the University of Nottingham, England, in 1982. Its editors have brought together contributors from both academic and clinical settings in an attempt to bridge current theoretical models of human memory with practical approaches to memory assessment and its remediation. This book offers sound guidelines for anyone working with clients who present with memory deficits secondary to cortical dysfunction. Its brevity, easy reading style, and practical approach make it a useful reference for students and clinicians alike. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Membranes as pretreatment to desalination in wastewater reuse

This article looks at the benefits of wastewater reuse for industrial and municipal applications. It demonstrates how continuous microfiltration pretreatment to reverse osmosis can reduce capital and operating costs of reverse osmosis systems, improve their efficiency and enable reliable operation on a wider variety of water sources. This information is supported by operational data from a number of continuous microfiltration/reverse osmosis installations worldwide on difficult-to-treat feed waters.     

On the abnormal exponents aν and aD in Mark Houwink type equations for wormlike chain polysaccharides

Summary The Mark Houwink exponent relating intrinsic viscosity and the molecular weight are usually much larger for polysaccharides than for synthetic polymers. In a moderate range of molecular weights, it depends directly on the stiffness of the molecules considered as worm like chains. This paper demonstrates that these exponents are predictible from the model of Yamakawa-Fujii.     

A new and fast method to determine mixing and conductive cooling of thermal waters in carbonate-evaporite environments

A method is proposed, for low-temperature geothermal systems, for calculating the aquifer temperature and relative proportions of mixed thermal and shallow groundwaters from carbonate-evaporite environments. The fluid is assumed to be in chemical equilibrium with anhydrite and chalcedony in the aquifer, and mixed with diluted waters during its ascent. An attempt has been made to establish a relationship between reservoir temperature, the aqueous sulfate and silica contents of the mixed fluid, the proportion of the thermal end-member and the temperature of the adiabatic mixture. The method calculates mineral solubilities in the field context, calibrated on representative thermal springs. The method also considers the effects of conductive cooling.     

Effect of some sulfonamides on anaerobic glycolysis in the rat brain

Among the 5612 pregnancies followed at the 2nd Obstetrical and Gynaecological Clinic of the University Hospital of Athens, from July 1969 to December 1974, laparotomy was undertaken 32 times for conditions not associated with pregnancy, an incidence of 0,58%. The laparotomy was performed because of ovarian cysts, fibroids, acute appendicitis and bowel obstruction. The accurate diagnosis, the fetal loss rate, maternal morbidity and mortality were discussed.     

On the volume change on non covalent gels in solvent-non solvent mixtures

Summary In this paper, the volume change on polysaccharide gels in non solvent mixtures is investigated. No phase transition is observed. A reversible decrease of the swelling volume is obtained directly related to the mechanical properties of the gels and to the charge parameters of the polymers. The effect of deswelling in presence of acetone or alcohol is increasing from agarose, k-carrageenan and i-carrageenan.     

Evidence for a single stranded xanthan chain by electron microscopy

Summary Electron microscopy of xanthan adsorbed to positively charged carbon coated grids indicates that this technique can yield reliable informations about the structure of the molecule. The results presented in the present work suggest that the xanthan exists only as single stranded wormlike molecules in clean dilute solutions. In contrast the electron micrographs obtained with native and renatured xanthans adsorbed to uncharged supports indicate side by side associations. A possible role of the acetyl substituent content on this behavior is suggested.     

Primogéniture et modèle de la confluence dans une université canadienne.

Studied primogeniture and the effect of birth order among 510 1st-yr and 65 4th-yr university students. The predominance of eldest children was less marked than in previous studies, as was predicted. In accordance with the confluence model, the number of Ss of successive ranks diminished in families of 2 and 3 children and somewhat less clearly in 4-child families. These phenomena were more marked for the 4th yr. Hypotheses relating to intelligence, socioeconomic milieu, or differential motivation according to birth order do not satisfactorily explain the observed tendencies. (English abstract) (25 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)