Amount of training and cue-evoked taste-reactivity responding in reinforcer devaluation.

In two experiments, rats received minimal (16) pairings of one auditory conditioned stimulus (CS) cue with a sucrose reinforcer, and extensive (112) pairings of another auditory CS with that reinforcer. After sucrose was devalued by pairing it with lithium chloride in some rats (Devalue groups) but not others (Maintain groups), taste reactivity (TR) and other responses to unflavored water were assessed in the presence of the auditory CSs alone. The minimally trained CS controlled substantially more evaluative TR responses than the extensively trained CS. Those TR responses were hedonic (positive) in the Maintain groups, but aversive (negative) in the Devalue groups. By contrast, food cup entry and other responses thought not to reflect evaluative taste processing were controlled more by the extensively trained cue. These responses were reduced by sucrose devaluation comparably, regardless of the amount of training. The results suggest rapid changes in the content of learning as conditioning proceeds. Early in training, CSs may be capable of activating preevaluative processing of an absent food reinforcer that includes information about its palatability, but that capability is lost as training proceeds. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Invited article: the fast readout low noise camera as a versatile x-ray detector for time resolved dispersive extended x-ray absorption fine structure and diffraction studies of dynamic problems in materials science, chemistry, and catalysis

Originally conceived and developed at the European Synchrotron Radiation Facility (ESRF) as an "area" detector for rapid x-ray imaging studies, the fast readout low noise (FReLoN) detector of the ESRF [J.-C. Labiche, ESRF Newsletter 25, 41 (1996)] has been demonstrated to be a highly versatile and unique detector. Charge coupled device (CCD) cameras at present available on the public market offer either a high dynamic range or a high readout speed. A compromise between signal dynamic range and readout speed is always sought. The parameters of the commercial cameras can sometimes be tuned, in order to better fulfill the needs of specific experiments, but in general these cameras have a poor duty cycle (i.e., the signal integration time is much smaller than the readout time). In order to address scientific problems such as time resolved experiments at the ESRF, a FReLoN camera has been developed by the Instrument Support Group at ESRF. This camera is a low noise CCD camera that combines high dynamic range, high readout speed, accuracy, and improved duty cycle in a single image. In this paper, we show its application in a quasi-one-dimensional sense to dynamic problems in materials science, catalysis, and chemistry that require data acquisition on a time scale of milliseconds or a few tens of milliseconds. It is demonstrated that in this mode the FReLoN can be applied equally to the investigation of rapid changes in long range order (via diffraction) and local order (via energy dispersive extended x-ray absorption fine structure) and in situations of x-ray hardness and flux beyond the capacity of other detectors.     

Mathieu functions and their applications to scattering by a coatedstrip

The elliptic-cylinder harmonics, known as Mathieu (1868) functions, are reviewed. These functions are then used to describe EM scattering by confocal elliptic cylinders where each cylinder's dielectric constant is different. A peculiarity of this problem is that the Mathieu functions in different regions are not orthogonal at regional boundaries. Hence, each boundary couples all harmonics from both sides together, and infinite sets of coefficients must be simultaneously evaluated. Numerical results are given for the special case where the innermost region is a perfect conductor. The authors consider both TE and TM illumination. Only normal incidence is actually treated, although oblique generalization is conceptually easy     

Getter sputtering—a review

The historical background and current use of getter sputtering are reviewed and it is shown that the process often occured in early apparatus because of fortuitous layout of the chamber components. Getter systems are classified into “static” and “ynamic” according to the gas flow and pumping conditions. In conclusion mass spectra are given of the gas atmospheres in an r.f. getter sputtering plant when depositing tantalum. It is shown that gettering reduces the gaseous impurities. However, provision of the extra getter target requires use of increased power input. Otherwise the deposition rate can fall (from an overall reduction in ion current density) which increases in the desired coating the proportion of sorbed impurity from gas released in the substrate coating vessel.     

Intelligence, personality, and criminal violence: A multivariate analysis.

The L. R. Huesmann et al (1978) Validity (F)?+?Psychopathic Deviate (Pd)?+?Hypomania (Ma) MMPT index of aggression and A. B. Heilbrun's (see record 1979-25100-001) hypothesis regarding the interaction of intelligence and psychopathy in relation to violent behavior were evaluated with 390 adult male offenders, mean age 26.2 yrs. The F?+?Pd?+?Ma composite did not differentiate significantly between inmates who had been classified according to the violent or nonviolent nature of their most recent offenses, although it was positively correlated with Ss' lifetime total number of violent convictions. Nonetheless, this latter correlation was of extremely small magnitude, and the combination of scales F, Pd, and Ma performed no better than Pd alone. Low levels of intellectual functioning were associated with violent crime in all analyses; however, contrary to Heilbrun, the relationship of intelligence and psychopathy to violence was found to be linear and additive rather than interactive, regardless of whether psychopathy was defined as F?+?Pd?+?Ma or as Pd only. (16 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Deodorization and finished oil handling

Deodorization is the final processing step in the production of edible oil products. Chemical/physical aspects of deodorization and mechanical design of deodorizers are explained, including chemical analysis of feedstock, finished product and by-products. This includes normal operating standards and means of correcting off specification operation. Operating procedures, labor requirements and maintenance are reviewed. Finished oil handling includes use of antioxidants, inert gas addition, pipelines and storage facilities. Emphasis is on the practical operations of deodorization and finished soybean oil handling.     

Evaluating Vocational Interventions: A Tale of Two Career Development Seminars.

Formal evaluation of two career development seminars was conducted to determine what kind of vocational interventions were helping what kind of people. Students experienced a wide variety of vocational treatments (e.g., standardized inventories, workbooks, writing exercises, discussions, individual counseling) and were asked to rate the helpfulness of each vocational intervention. No interactions between characteristics of students and treatment ratings were found, but an overall main effect of all treatments on raising students' level of vocational identity was found. Suggestions are made for improving the management and evaluation of career development seminars. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Transfer of training between quickened and unquickened tracking systems.

Positive transfer of training was found to occur in switching from unquickened (knowledge of results delayed due to a loose display-control relationship) tracking system to a quickened (knowledge of results is instantaneous) tracking system, or in switching from a quickened to an unquickened system. Different amounts of training provided no difference in the extent of transfer, however, and transfer between the two systems was not complete. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effect of gas purity on the reflectance and resistivity of magnetron sputtered aluminium and its alloys

The relative optical reflectance and electrical resistivity have been measured of thick films (～1μm) deposited by sputtering Al in a planar magnetron using Ar and Ar + O₂ mixtures. The results obtained have a practical value in indicating the power input and related deposition rate required for given discharge conditions to obtain Al-films with a high reflectance and bulk resistivity.     

The restricting effects of awareness: A paradox and explanation.

Ss were shown tachistoscopically-presented word stimuli to test the distinction between the perceptual processes of registration (what could be called physiological or sensory threshold) and awareness (or the cognitive threshold). The presentation consisted of a stimulus word followed by series of words associated to the stimulus word either in terms of meaning or structural resemblance. Recall of words presented subliminally or supraliminally was facilitated with degree of awareness of actual stimulus word; with greater awareness of the word, associational recall was for words that structurally resembled S word; without awareness, recall was determined by associative meaning. (PsycINFO Database Record (c) 2010 APA, all rights reserved)