Self-schemas and risk for depression: A prospective study.

Two longitudinal experiments with 375 undergraduates investigated the role of depressive self-schemas in vulnerability to depression. Ss were divided into 5 groups hypothesized to be at differential risk for depression according to a schema model: depressed schematic, depressed nonschematic, nondepressed schematic, nondepressed nonschematic, and psychopathology control. In Exp I, Ss were followed regularly for 4 mo with self-report and clinical interview measures of depression (e.g., Beck Depression Inventory). There was no evidence of risk for depression associated with schema status apart from initial mood and no interaction of life stress events and schemas. In Exp II, links among self-schemas, information processing, and mood status were investigated. It was shown that depressive self-schemas did not exert an ongoing, active influence on everyday information processing; instead, current mood affected information processing. Remitted depressed Ss resembled nondepressed rather than depressed Ss. Findings support the distinction between concomitant and vulnerability schemas noted by N. Kuiper et al (in press) and help to clarify differences between cognitions that are symptoms of depression and those that may play a causal role under certain conditions. (41 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Behavioral predictions from hypnotic responsiveness scores when obtained with and without prior induction procedures.

Administered the Barber Suggestibility Scale (BSS) and the Stanford Hypnotic Susceptibility Scale, Form A (SHSS) to 80 high school students, half with imagination instructions and half with hypnotic induction instructions. The Stanford Profile Scale of Hypnotic Susceptibility, Form I (SPS), was subsequently administered to test the predictive effectiveness of the scales. The SPS has both different induction procedures and different item content from the BSS and the SHSS, which are very similar in their test-suggestion topics. Correlations with the SPS were much higher following prior testing under induction rather than imagination conditions, and induction conditions raised both objective and subjective scores above imagination conditions. Although both the BSS and the SHSS yielded similar results, some differences were noted. The subjective correction makes a greater difference for BSS than for SHSS scores, so that the subjective correction is to be recommended especially when the BSS is used. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

新“船驼”——寻求阿姆斯特丹与阿尔默勒之间新关系的研究型设计

所谓的“船驼”（scheepskameel）是在17世纪时开始使用的．这是一种浮坞,是当时东印度公司的船只驶入后在抵达浅滩前泊靠的地方．以确保吃水很深的船只从海上到阿姆斯特丹的可达性（图1）。装载有贵重物品的帆船必须要通过排空储水舱里的水来提升船位,从而能够穿越浅滩行驶;之后储水舱会被重新注满,船只继续调整方向驶入城市。     

Tomato Leaf Disease Classification using Multiple Feature Extraction Techniques

In order to further promote the optimization of the rural settlement pattern in the plateau and mountainous multi-ethnic gathering areas, and provide a basis for the protection and development of plateau mountainous ethnic settlements in the new period, the landscape pattern index method and ArcGIS spatial analysis method were used to quantitatively analyze the horizontal and vertical spatial distribution characteristics of rural settlements and their influencing factors in the multi-ethnic gathering area of the plateau and mountainous areas based on the 2017 remote sensing digital image data. The results show that: (1) The overall rural settlements in Longyang District on the horizontal space pattern show a small scale. The Han, Yi, Bai and Dai village settlements are mainly small settlements and small settlements. The Bai people are mainly medium-sized settlements. Their present the characteristics of cluster distribution. The Yi ethnic group has the highest degree of aggregation, and the Dai ethnic group has the lowest degree of aggregation. The spatial distribution and aggregation of different ethnic groups have significant differences in the level of spatial distribution. (2) Affected by geographical conditions on the vertical gradient, the settlements have a normal distribution overall, and the Bai settlements are the most obvious. (3) The spatial distribution characteristics of rural settlements in Longyang District are related to terrain, water system, transportation, and urban built-up areas, but there are certain differences between different ethnic groups. The optimization of the rural settlement pattern in the multi-ethnic gathering areas of the plateau and mountains should be based on different terrain conditions and different national cultures to suit local conditions, ensure ecological security, and promote national unity.

     

Using solution thermodynamics to describe the dispersion of rod-like solutes: application to dispersions of carbon nanotubes in organic solvents

We report a simple model describing the solubility of rods in solvents, expressing the final result explicitly in terms of the surface entropy and the enthalpy of mixing. This model can be combined with any expression for the mixing enthalpy depending on the requirements. For example, in one instance it predicts the dispersed concentration of rods to decrease exponentially with the Flory-Huggins parameter of the dispersion. Using a different enthalpy function, it predicts a Gaussian peak when concentration is plotted versus solvent surface energy. The model also suggests specific solvent-rod interactions to be important and shows the dispersed concentration to be very sensitive to ordering at the solvent-rod interface. We have used this model to describe experimental results for the concentration of dispersed nanotubes in various solvents. Qualitative agreement with these predictions is observed experimentally. However, we suggest that the fact that quantitative agreement is not found may be explained by solvent ordering at the nanotube surface.     

Young infants' generalization of emotional expressions: Effects of familiarity.

From birth, infants are exposed to a wealth of emotional information in their interactions. Much research has been done to investigate the development of emotion perception, and factors influencing that development. The current study investigates the role of familiarity on 3.5-month-old infants' generalization of emotional expressions. Infants were assigned to one of two habituation sequences: in one sequence, infants were visually habituated to parental expressions of happy or sad. At test, infants viewed either a continuation of the habituation sequence, their mother depicting a novel expression, an unfamiliar female depicting the habituated expression, or an unfamiliar female depicting a novel expression. In the second sequence, a new sample of infants was matched to the infants in the first sequence. These infants viewed the same habituation and test sequences, but the actors were unfamiliar to them. Only those infants who viewed their own mothers and fathers during the habituation sequence increased looking. They dishabituated looking to maternal novel expressions, the unfamiliar female's novel expression, and the unfamiliar female depicting the habituated expression, especially when sad parental expressions were followed by an expression change to happy or to a change in person. Infants are guided in their recognition of emotional expressions by the familiarity of their parents, before generalizing to others. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Tuning the mechanical properties of composites from elastomeric to rigid thermoplastic by controlled addition of carbon nanotubes

A commercial thermoplastic polyurethane is identified for which the addition of nanotubes dramatically improves its mechanical properties. Increasing the nanotube content from 0% to 40% results in an increase in modulus, Y, (0.4–2.2 GPa) and stress at 3% strain, σ_{? = 3%}, (10–50 MPa), no significant change in ultimate tensile strength, σ_B, (≈50 MPa) and decreases in strain at break, ?_B, (555–3%) and toughness, T, (177–1 MJ m^?3). This variation in properties spans the range from compliant and ductile, like an elastomer, at low mass fractions to stiff and brittle, like a rigid thermoplastic, at high nanotube content. For mid‐range nanotube contents (≈15%) the material behaves like a rigid thermoplastic with large ductility: Y = 1.5 GPa, σ_{? = 3%} = 36 MPa, σ_B = 55 MPa, ?_B = 100% and T = 50 MJ m^?3. Analysis suggests that soft polyurethane segments are immobilized by adsorption onto the nanotubes, resulting in large changes in mechanical properties.     

Individual differences in student cheating.

The incidence and causes of cheating were investigated using a questionnaire, consisting of 21 cheating behaviors, which was distributed to students at an English university. Respondents were asked to indicate, confidentially, which of the behaviors they had engaged in. Reported cheating was widespread and some types of cheating (e.g., on coursework) were more common than others. Reported cheating was more common in men than women; more common with less able students than more able ones; more common in younger students than mature ones; and more common in science and technology students than those in other disciplines. It is suggested that students' motivation, in particular whether they are studying to learn rather than simply to obtain good grades, is a major factor in explaining these differences. The results also indicate that cheating consists of a number of different types of behavior rather than being a unitary concept. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

When modesty prevails: Differential favorability of self-presentation to friends and strangers.

Although most interpersonal interactions take place between people who know each other, most self-presentation research has focused on self-presentation to strangers. Five studies showed that self-presentational favorability differed as a function of whether the interaction partner was a friend or a stranger. Studies 1 and 2 found that self-presentations to friends were consistently more modest than self-presentations to strangers. In Studies 3 and 4, self-presentations were manipulated by instructing participants to present themselves in either a self-enhancing or modest manner. Modesty with strangers and self-enhancement with friends both resulted in impaired recall for the interaction, consistent with the view that those strategies contradict familiar, overlearned patterns. Study 5 distinguished self-deprecation from modesty. Taken together, the results indicate that people habitually use different self-presentation strategies with different audiences, relying on favorable self-enhancement with strangers but shifting toward modesty when among friends. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Intermodal perception of expressive behaviors: Relation of eye and voice?

Examined intermodal perception of vocal and facial expressions in 2 experiments with 16 5- and 16 7-mo-olds. Two filmed facial expressions were presented with a single vocal expression characteristic of 1 of the facial expressions (angry or happy). The lower third of each face was obscured, so Ss could not simply match lip movements to the voice. Overall findings indicate that only 7-mo-olds increased their fixation to a facial expression when it was sound-specified. Older infants evidently detected information that was invariant across the presentations of a single affective expression, despite degradation of temporal synchrony information. The 5-mo-olds' failure to look differentially is explained by the possibilities that (1) 5-mo-olds may need to see the whole face for any discrimination of expressions to occur; (2) they cannot discriminate films of happy and angry facial expressions even with the full face available; or (3) they rely heavily on temporal information for the discrimination of facial expressions and/or the intermodal perception of bimodally presented expressions, although not for articulatory patterns. Preferences for a particular expression were not found: Infants did not look longer at the happy or the angry facial expression, independent of the sound manipulation, suggesting that preferences for happy expressions found in prior studies may rest on attention to the "toothy" smile. (25 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)