Wear behaviour of a gradient surface produced by a punching process in a Cu-30 Ni alloy

The grain size variation in a gradient surface produced by a punching and recovery process on a Cu-30Ni alloy has been observed by atomic force microscopy. The friction characteristics of the gradient surface in a 3.5 wt% NaCl solution were investigated using a micro-indenter probe, a pin-on-disc type tribometer, a strain sensor and an optical microscope. The results showed that the hardness and grain size can be well represented by the Hall–Petch relationship when the gain size is more than 30?nm. The wear rate, friction coefficient and adhesive force all increase depth below the surface. These variations are attributed to a gradual increasing grain size with depth. The morphologies of the worn track were also studied to understand further the corrosive wear behaviour of gradient surfaces.     

Episodic and semantic remote autobiographical memory in ageing

Many laboratory studies have demonstrated an age effect on episodic memory which is in contrast with the preservation of semantic memory. The aim of this study was the assessment of age effects on autobiographical memory according to the length of the retention interval, taking into account the episodic and semantic components. A total of 52 subjects, aged between 40 and 79, were divided into four age groups. They were tested with a sophisticated autobiographical questionnaire consisting of two tasks, one involving the recall of semantic information and another the recall of episodic events. Results revealed that episodic recall deteriorated more with age and retention interval than semantic recall. These data, gathered using an ecological test, confirm age differences demonstrated by laboratory tests on the episodic-semantic distinction. Furthermore, the profile of results obtained for the recall of specific detailed events, and analysed according to age of encoding, confirms the distribution of episodic memories across the lifespan, as modelled by Rubin, Wetzler, and Nebes (1986) with the cue-word technique.     

Effects of language dominance on item and order memory in free recall,serial recall and order reconstruction

Spanish–English bilinguals (N = 144) performed free recall, serial recall and order reconstruction tasks in both English and Spanish. Long-term memory for both item and order information was worse in the less fluent language (L2) than in the more fluent language (L1). Item scores exhibited a stronger disadvantage for the L2 in serial recall than in free recall. Relative order scores were lower in the L2 for all three tasks, but adjusted scores for free and serial recall were equivalent across languages. Performance of English-speaking monolinguals (N = 72) was comparable to bilingual performance in the L1, except that monolinguals had higher adjusted order scores in free recall. Bilingual performance patterns in the L2 were consistent with the established effects of concurrent task performance on these memory tests, suggesting that the cognitive resources required for processing words in the L2 encroach on resources needed to commit item and order information to memory. These findings are also consistent with a model in which item memory is connected to the language system, order information is processed by separate mechanisms and attention can be allocated differentially to these two systems.     

Effect of Color Coding on Visually Oriented Tests With Students of Different Cognitive Styles

The purpose of this study was to examine the effects that differentially coded (black and white and color) illustrations had on students (N = 117) who were classified as field dependent, field neutral, or field independent as a result of their performance on the visually oriented Group Embedded Figures Test (Witkin, Olt-man, Rashin, & Karp, 1971). Students were randomly assigned to two instructional treatments complemented by illustrations (black and white and colored). After receiving their respective treatments, students reviewed two visually oriented criterion tests. Two-way analyses of variance conducted on achievement scores indicated that field independents scored significantly higher than did field dependents on both visual tests, and differences between field-dependent and field-independent learners who received the color-coded treatments on the visual identification test were insignificant. Results indicate that field dependency is an important instructional variable and that for some types of learning objectives the process of color coding instructional materials may reduce achievement differences attributed to differences in cognitive style.     

The Viability of an Abbreviated Version of the Holtzman Inkblot Technique With Older Adults

Multiple regression analyses of Holtzman Inkblot Technique (HIT; Holtzman, Thorpe, Swartz, & Herron, 1961) factor scores were conducted to empirically determine the viability of a short form of the HIT with older adults. Although R ² values were acceptable, the contribution of individual cards to total factor scores was dubious at best. These data suggest that the development of a short form of the HIT for use with older adults is premature and requires more systematic research to justify its viability.     

Commentary: “A Fundamental Polarity in Psychoanalysis: Implications for Personality Development,Psychopathology, and the Therapeutic Process” by Sidney J. Blatt

A commentary on Dr. Sidney J. Blatt's article, “A Fundamental Polarity in Psychoanalysis: Implications for Personality Development, Psycho-pathology, and the Therapeutic Process” is presented by articulating Dr. Blatt's significant contribution to psychoanalysis, developmental and attachment theory, and therapeutic process research. According to Blatt's theory, normal maturation involves a complex reciprocal transaction between two developmental lines throughout the life cycle: (a) the establishment of stable, enduring, mutually satisfying interpersonal relationships and (b) the achievement of a differentiated, stable, and cohesive identity. He has applied this theory to understand both normal and pathological psychological phenomena, the latter resulting from disruptions in these developmental lines, resulting in an overemphasis on relational (anaclitic) or self-definitional (introjective) issues. Further, Dr. Blatt has evaluated his theoretical model through empirical study and demonstrated that relationally oriented and self-definitionally oriented persons have differential responses to psychotherapy. Finally, areas of question and potential for future research are outlined. Specifically, it is argued that although anaclitic and introjective configurations are easy to discuss as distinct types, relevant evidence from attachment theory raises the issue of whether these types may be better conceptualized as dimensions, with different configurations located within two-dimensional space. Further, findings of a group evidencing mixed anaclitic and introjective features raise additional questions about how these configurations relate to one another, and evidence from the attachment literature is used to shed light on this issue.     

The Relation Between Appraised Mismatch and the Duration of Negative Emotions: Evidence for Universality

Emotions are processes that unfold over time. As a consequence, a better understanding of emotions can be reached only when their time‐related characteristics can be assessed and interpreted adequately. A central aspect in this regard is the duration of emotional experience. Previous studies have shown that an emotional experience can last anywhere from a couple of seconds up to several hours or longer. In this article, we examine to what extent specific appraisals of the eliciting event may account for variability in emotion duration and to what degree appraisal–duration relations are universal or culture specific. Participants in 37 countries were asked to recollect emotional episodes of fear, anger, sadness, disgust, shame and guilt. Subsequently, they were asked to report the duration of these episodes and to answer a number of questions regarding their appraisal of the emotion‐eliciting event. Multi‐level analyses revealed that negative emotions last especially long when the eliciting event and its consequences are perceived to be incongruent with the individual's goals, values and self‐ideal, creating a mismatch. These relations are largely universal, although evidence for some limited variability across countries is found as well. Copyright © 2013 European Association of Personality Psychology     

Evaluating the Psychometric and Measurement Characteristics of a Measure of Sexual Orientation Harassment

We use classical test theory (CTT) and item response theory (IRT) methodologies to examine the psychometric and measurement properties of an instrument designed to assess sexual orientation harassment among military personnel (N?=?71,989). CTT analyses indicated that items were unidimensional and exhibited adequate levels of reliability. IRT analyses demonstrated that the items functioned similarly and exhibited appropriate levels of item discrimination. However, the analyses also suggested that the sensitivity of the items may be limited. Differential test functioning analyses provided evidence of the measurement equivalence of the instrument across male and female respondents. The findings provide support for the psychometric properties and measurement equivalence of the instrument for measuring sexual orientation harassment among male and female military personnel. We discuss the implications of our findings for future research on sexual orientation harassment in the workplace.