On the pictorial properties of visual images: Effects of image size on memory for words.

In 4 experiments 82 university students formed mental images of pairs of named objects touching and interacting in some way. On half of the trials, one member of the pair was imaged such that it was at a small subjective size; on the remaining half of the trials, both objects were imaged at normal relative sizes. Ss rated their images in terms of vividness. Results of an unexpected memory test presented after all the items had been rated reveal poorer recall of words encoded as smaller images. This result was not due to differences in imaginal relations between the imaged objects in the 2 conditions, nor was it due to greater ease in constructing images including a reduced member. In addition, pairs including a subjectively tiny image were rated as less vivid than pairs including images only of normally sized objects. A regression analysis indicated that the memory deficit was due to size per se and was not a consequence of differences in vividness induced by the size manipulation. (French summary) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Perceptual integration on the Rorschach as an indicator of cognitive capacity: A developmental study of racial differences in a clinic population.

Rorschach protocols of 173 7-14 yr old Blacks and Whites who had been evaluated at a child guidance clinic were rescored with respect to developmental level of perceptual integration. Blacks had higher perceptual-integration scores in comparison to Whites. This finding, however, was accounted for by the higher performance of low-IQ (70-89) Blacks as compared to low-IQ Whites. No differences were obtained between average-IQ (90-109) Blacks or Whites. It is suggested that standard IQ tests may not adequately tap the cognitive capacity of some Black children and that use of the Rorschach from a developmental/structural perspective may provide a useful adjunctive measure of intelligence that would more realistically assess children's cognitive competence. (21 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Memory and emotion.

The purpose of this study by a 9th grade student "was to see if there were a relationship between memory and emotions." 121 Ss (junior high school students) viewed 30 words successively, each being exposed for a period of 2? sec., and then were instructed to recall them in writing. A week later dittoed lists of the same words were rated on a 5-point scale of unpleasantness-pleasantness by the Ss. "The difference in the kind of feeling, i.e., pleasant or unpleasant, seems to have no effect on memory… . Intensity of emotion does appear to affect memory." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Diffuse optical tomography with spectral constraints and wavelength optimization

We present an algorithm that explicitly utilizes the wavelength dependence of tissue optical properties for diffuse optical tomography. We have previously shown that the method gives superior separation of absorption and scattering. Here the technique is described and tested in detail, and optimum wavelength sets for a broad range of chromophore combinations are discovered and analyzed.     

Surface-enhanced Raman scattering from individual au nanoparticles and nanoparticle dimer substrates

Surface-enhanced Raman scattering (SERS) intensities for individual Au nanospheres, nanoshells, and nanosphere and nanoshell dimers coated with nonresonant molecules are measured, where the precise nanoscale geometry of each monomer and dimer is identified through in situ atomic force microscopy. The observed intensities correlate with the integrated quartic local electromagnetic field calculated for each specific nanostructure geometry. In this study, we find that suitably fabricated nanoshells can provide SERS enhancements comparable to nanosphere dimers.     

Direct observation of anion-mediated translocation of fluorescent oligoarginine carriers into and across bulk liquid and anionic bilayer membranes

The recent hypothesis that counteranion-mediated dynamic inversion of charge and solubility might contribute to diverse functions of oligoarginines in biomembranes was tested with two fluorescently labelled oligomers, FL-R(8), one of the most active cell-penetrating peptides, and its longer version, FL-R(16). We report evidence for counteranion-mediated phase transfer from water into bulk chloroform and anionic lipid-bilayer membranes as well as reverse-phase transfer from bulk chloroform and across intact lipid-bilayer membranes into water. The differences found between FL-R(8) and FL-R(16) with regard to location in the bilayer and reverse-phase transfer from bulk and lipid-bilayer membranes into water implied that the reported results may be relevant for biological function.     

Transient induced creep for irradiated fuels

Creep of nuclear fuels under irradiation has generally been considered as an athermal process. A transient state of irradiation induced creep, however, was treated with kinetic equations based on thermodynamics. For this purpose, the kinetic equations for enhanced diffusion, annihilation of excess vacancies and migration probability under irradiation were derived. Effective works were introduced to the above processes as a result of the fission damage, and reduced activation energies for each process were defined. Based on the knowledge obtained in the transient state, the effective activation energies in the steady state were discussed. The above concepts were examined using the experiments of Clough.     

Phase transitions in R2 SnCl6-type crystals (R = NH3 C2H3, NH3C2H5 and N(CH3)4)

The thermal dilatation in (NH₃ ·CH₃) SnCl₆, (NH₃ · C₂H₅) SnCl₆ and [N(CH₃)] SnCl₆ was measured, and as the results it has turned out that (NH₃ ⁶·C₂H₅) SnCl₆ and [N(CH₃)₄]₂ SnCl₆ undergo the first order transitions at 128 K and 158 K, respectively. The low temperature phases of (NH · C₂H₅) SnCl₆ and [N(CH₃)₄]₂ SnC1₆ are found to be monoclinic and tetragonal, respectively, No phase transition was observed in (NH₃ ·CH₃)₂ SnCl₆ down to 77 K.     

Cupid's misses: Relational vicissitudes in the analyses of single women.

Addresses the interface between adult needs for intimacy and the psychoanalytic process between a certain population of single female patients and their male analysts. Relational vicissitudes of this patient–analyst pairing are discussed from a perspective that is both psychoanalytic and psychosocial. Influences of gender differences, sociological factors, and the existential nature of prolonged unchosen singlehood on the female analysand's subjective experience are discussed. This discussion is followed by an exploration of the ramifications of singlehood for the analytic process and for the analytic relationship. The concepts of primary intimacy and a primary relational void are introduced, and clinical illustrations are incorporated. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Immunolocalization of multiple membrane proteins on a carbon replica with STEM and EDX

We present a method for immunolabeling of multiple species of membrane proteins with high spatial resolution. It allows differentiation of equally sized very small markers with different chemical compositions, which leads to high labeling efficiency and reduces steric hindrance of closely spaced immunolabeled biomolecules. Markers such as CdSe/ZnS semiconductor quantum dots and colloidal gold particles are distinguished by differential contrast in high-angle annular detector dark-field STEM mode or by EDX microanalysis of their elemental contents. This method was tested by observation of labeled AMPA- and NMDA-type glutamate receptors on sodium-dodecyl-sulfate-digested replica prepared from rat hippocampus. To improve particle visibility and detectability, the replica films were made exclusively with carbon to avoid the high background of conventional platinum/carbon replica. Extension of the method is suggested by detection of 1.4 nm nanogold particles and its potential application in the biological imaging research.