Delineation of female performance on the Rey-Osterrieth Complex Figure.

103 female college students (aged 18–24 yrs) were administered the Rey-Osterrieth Complex Figure on Copy, Immediate Recall, and 20-min Delayed Recall. Ss were grouped based on handedness, familial handedness, and academic major (mathematics/science and nonmath/science). Based on the scoring system of D. Waber and J. Holmes (see PA, Vols 72:24305 and 74:9917) the mathematics/science anomalous dominance groups obtained higher mean scores than all other subgroups, and the non-math/science familial right-handers were the low performers. The high-performing groups may have an increased ability to coordinate the use of left- and right-hemisphere processing. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Laryngeal Kaposi's sarcoma in patients with AIDS

Over a period of 10 years 17 human immunodeficiency virus(HIV)-infected patients with laryngeal Kaposi's sarcoma were seen and treated at University College London Hospitals. All patients had advanced HIV disease. Their presentation was with symptoms of upper airway obstruction in the majority of cases and the diagnosis was made by fibreoptic examination of the larynx. Biopsy was associated with brisk haemorrhage in one patient, who required a temporary tracheostomy, and was not performed in the other 16 cases. The commonest site of laryngeal involvement was the supraglottis in 11 patients, with glottic lesions noted in eight patients: subglottic lesions were seen in only three. Treatment of laryngeal Kaposi's sarcoma was, in general, conservative, five patients received low dose radiotherapy to the larynx and 10 were treated with systemic chemotherapy for disseminated Kaposi's sarcoma. Laryngeal Kaposi's sarcoma did not contribute to patient mortality.     

Revising psychoanalytic understandings of perinatal loss.

Discusses the need to revise psychoanalytic concepts to accommodate new understandings about perinatal loss, female sexuality, and guilt dynamics. Unspoken allegiance to some traditional psychoanalytic beliefs that are increasingly viewed as outdated may impede applying contemporary psychoanalytic frameworks to understand perinatal loss. Four tenets of psychoanalytic theory (the unborn child experienced as solely a fantasy, the mother's symbolic equation of her child primarily with the penis, unconscious causation of perinatal loss, and the ubiquity of unconscious ambivalence underlying parental guilt) are critically evaluated and revised to introduce a contemporary psychoanalytic understanding of perinatal loss. The author concludes that recognizing the pregnant woman's developmental, conflict-based, object, and narcissistic ties to her unborn child broadens psychoanalytic understandings of the meanings of pregnancy and perinatal loss. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Dissociation theories of hypnosis.

Hypnotic responses have been attributed to 2 mechanisms that are characterized as dissociative. In E. R. Hilgard's (1986) neodissociation theory, responses are hypothesized to be due to a division of consciousness into 2 or more simultaneous streams, separated by an amnesic barrier that prevents access to suggestion-related executive functions, monitoring functions, or both. In K. S. Bowers's (1992) dissociated control theory, hypnotic inductions are hypothesized to weaken frontal control of behavioral schemas, thereby allowing direct activation of behavior by the hypnotist's suggestions. The authors review the empirical base, conceptual issues, and strengths and weaknesses of both theories. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Unexceptional spatial memory in an exceptional memorist.

Rajan Mahadevan evidences an exceptional memory for arrays of digits. The authors tested whether Rajan's spatial memory was likewise exceptional. Eight control Ss and Rajan were instructed to remember the position and orientation of 48 images of common objects shown either to the left or the right of fixation and facing either left or right. Rajan's accuracy for judging whether the position and orientation of these pictures had changed when they were shown in a different sequence was lower than that of control Ss for both judgments. Rajan's exceptional memory capacity apparently does not extend to spatial relations. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Measurement and analysis of neutron-induced soft errors insub-half-micron CMOS circuits

Neutron-induced soft error rates (SERs) of subhalf-micron CMOS SRAM and Latch circuits were studied both experimentally and analytically to investigate cosmic ray neutron-induced soft errors (SEs). Because the neutron beam used in the measurement has an energy spectrum similar to that of sea-level atmospheric neutrons, our SER data corresponds to those induced by cosmic ray neutrons. The α-particle induced SERs were also measured for comparison with the neutron-induced SER's. Neutron-induced SEs occurred in both circuits. On the other hand, α-induced SEs occurred in SRAM, but not in the Latch circuits. The measured SERs agreed with simulated results. We discussed the significance of how cosmic ray neutrons affects CMOS circuits at ground level     

Crosslinking of starch by alkaline roasting

Dry mixtures of starch with various bases were roasted in air. The effects of roasting were determined by a viscosity method. The results suggest that roasting at alkaline pH's produces covalent crosslinks. The author speculates that the crosslinks result from a combination of autoxidation and aldolization.     

On finite volterra series which admit hamiltonian realizations

In this paper we give necessary and sufficient conditions for a stationary finite Volterra series to have a linear (in the controls) analytic realization, which at the same time has a Hamiltonian structure. The result generalizes that for linear systems, where the condition is that the impulse response should be an odd function, and is expressed as a particular symmetry condition on the Volterra kernals. The relation between this problem and that of the inverse problem in Newtonian mechanics is explored. The finiteness of the Volterra series implies a nilpotence condition on a certain Lie algebra defined by the realization. The additional requirement that the system be Hamiltonian adds further structure to the classical representation of a nilpotent Lie algebra by lower triangular matrices.Work supported in part by the Office of Naval Research, Grant No. N00014-75-C-0648 while the author was on leave in the Division of Applied Sciences, Harvard University, Cambridge, Mass. U.S.A.Work supported in part by S.E.R.C. Grant No. GR/B/9116.7.