Parental,Peer, and Teacher Influences on the Social Behavior of Hong Kong Chinese Adolescents

Intensive interviews and self-report questionnaires were used to investigate parental, peer, and teacher influences on the prosocial and antisocial behaviors of Hong Kong Chinese adolescents. Students came from 5 academically different high schools. Results indicated that perceived parental influence was positively associated with frequency of prosocial behavior and negatively associated with frequency of delinquent behavior. Students with good relationships with their parents and peers showed lower frequencies of antisocial behaviors than did students with bad relationships. Adolescents in different identity statuses (achievement, moratorium, foreclosure, diffusion; E. H. Erikson, 1968) showed different patterns of prosocial and antisocial behaviors. For example, adolescents in the identity achievement group exhibited high frequencies of prosocial behaviors and low frequencies of antisocial behaviors, but those in the identity moratorium group exhibited quite high frequencies of both prosocial and antisocial behaviors.     

The Relationship of the Family Social Environment,Peer Influences,and Peer Relationships to Altruistic Orientation in Chinese Children

This study investigated the correlation between the family social environment, peer influences, and peer relationships to altruistic orientation in Chinese children. Results in the present study showed that (a) altruistic orientation measured by the Child Altruism Inventory (H. K. Ma & M. C. Leung, 1991) was directly associated with a positive family social environment, (b) altruistic orientation was directly associated with positive peer influences and was inversely associated with negative peer influences, and (c) altruistic orientation was directly associated with perceived prosocial behavior of one's best friend and inversely associated with perceived antisocial behavior of one's best friend. The findings suggested that a good family social environment, positive peer influences, and good peer relationships tended to increase altruistic orientation.     

State-Space Analysis of Working Memory in Schizophrenia: An FBIRN Study

The neural correlates of working memory (WM) in schizophrenia (SZ) have been extensively studied using the multisite fMRI data acquired by the Functional Biomedical Informatics Research Network (fBIRN) consortium. Although univariate and multivariate analysis methods have been variously employed to localize brain responses under differing task conditions, important hypotheses regarding the representation of mental processes in the spatio-temporal patterns of neural recruitment and the differential organization of these mental processes in patients versus controls have not been addressed in this context. This paper uses a multivariate state-space model (SSM) to analyze the differential representation and organization of mental processes of controls and patients performing the Sternberg Item Recognition Paradigm (SIRP) WM task. The SSM is able to not only predict the mental state of the subject from the data, but also yield estimates of the spatial distribution and temporal ordering of neural activity, along with estimates of the hemodynamic response. The dynamical Bayesian modeling approach used in this study was able to find significant differences between the predictability and organization of the working memory processes of SZ patients versus healthy subjects. Prediction of some stimulus types from imaging data in the SZ group was significantly lower than controls, reflecting a greater level of disorganization/heterogeneity of their mental processes. Moreover, the changes in accuracy of predicting the mental state of the subject with respect to parametric modulations, such as memory load and task duration, may have important implications on the neurocognitive models for WM processes in both SZ and healthy adults. Additionally, the SSM was used to compare the spatio-temporal patterns of mental activity across subjects, in a holistic fashion and to derive a low-dimensional representation space for the SIRP task, in which subjects were found to cluster according to their diagnosis.     

Students’ Academic Cheating in Chinese Universities: Prevalence, Influencing Factors, and Proposed Action

Quantitative research about academic cheating among Chinese college students is minimal. This paper discusses a large survey conducted in Chinese colleges and universities which examined the prevalence of different kinds of student cheating and explored factors that influence cheating behavior. A structural equation model was used to analyze the data. Results indicate that organizational deterrence and individual performance have a negative impact on cheating while individual perceived pressure, peers’ cheating, and extracurricular activities have a positive impact. Recommendations are proposed to reduce the level of academic cheating in China. Many of these are universal in nature and applicable outside of China as well.     

Job Satisfaction and Innovative Performance in Young Spanish Employees: Testing New Patterns in the Happy-Productive Worker Thesis—A Discriminant Study

We aimed to make a theoretical contribution to the happy-productive worker thesis by expanding the study to cases where this thesis does not fit. We hypothesized and corroborated the existence of four relations between job satisfaction and innovative performance: (a) unhappy-unproductive, (b) unhappy-productive, (c) happy-unproductive, and (d) happy-productive. We also aimed to contribute to the happy-productive worker thesis by studying some conditions that influence and differentiate among the four patterns. Hypotheses were tested in a sample of 513 young employees representative of Spain. Cluster analysis and discriminant analysis were performed. We identified the four patterns. Almost 15 % of the employees had a pattern largely ignored by previous studies (e.g., unhappy-productive). As hypothesized, to promote well-being and performance among young employees, it is necessary to fulfill the psychological contract, encourage initiative, and promote job self-efficacy. We also confirmed that over-qualification characterizes the unhappy-productive pattern, but we failed to confirm that high job self-efficacy characterizes the happy-productive pattern. The results show the relevance of personal and organizational factors in studying the well-being-performance link in young employees.     

Interest as a Moderator in the Relationship Between Challenge/Skills Balance and Flow at Work: An Analysis at Within-Individual Level

Considering flow as a non-ergodic process (i.e. non-homogeneous across individuals and non-stationary over time) that happens at the within-individual level, in this research we work with Bakker’s model that propose flow as made up by three components: intrinsic motivation, enjoyment, and absorption. Taking into account that flow theory can be considered as an intrinsic motivation theory, and the recent proposals about the need to distinguish between pre-conditions of flow and the flow experience itself, we look at interest as a moderator between the challenge/skills balance and the experience of flow, rather than a component of the flow experience. A total of 3640 recordings were collected from a sample of 58 workers using an experience sampling method (several registers a day, during 21 working days). The data was analyzed using regression techniques in each participant (i.e. at within-individual level). Our work tries to respond to the following two research questions: Will interest play a moderating role in the relationship between challenge/skills balance and flow? Will a non-linear model (cusp catastrophe model) better explain the relationship among challenge/skills balance, interest, and flow? The results suggest that our hypotheses were correct: including interest as moderator better explains the relationship between challenge/skills balance and flow in comparison to a model without moderation (R² values change from 0.33 to 0.50). Additionally, carrying out the analysis following non-linear techniques explained more variance as well (R² = 0.67), and this increment was significant. These results support the idea that interest should be considered as a key precondition for the appearance of flow, and this relationship is non-linear. We could say that these findings are exemplary in the field and brings up questions for their application in further research.     

Blocking by fixed and variable stimuli: Effects of stimulus distribution on blocking

An experiment with rats compared the ability of fixed and variable duration cues to produce blocking. Rats in group B (Blocking) were trained that both fixed- (F) and variable- (V) duration cues would be followed by food delivery. In a subsequent training stage F and V continued to be reinforced, but F was accompanied by X, and V by Y. In the test phase responding to X and Y was examined. Control group O (Overshadowing) received identical treatment, except that F and V were nonreinforced in the first training stage. In group B there was evidence for blocking, but only of X, which had been conditioned in compound with the fixed-duration F; there was no evidence for blocking of Y, which had been conditioned in compound with the variable-duration V. It is suggested that this result may occur because fixed cues reach a higher, more stable asymptote of associative strength than do their variable equivalents.     

Kinetic study of static recrystallization in an Fe–Al–O ultra-fine-grained nanocomposite

A nearly abrupt coarsening of grains is observed in a newly developed Fe–Al–O ultra-fine-grained nanocomposite with a significant volume fraction (4%) of alumina nano-precipitates. The microstructure of the alloy was analysed in different states (as-received and annealed) by means of scanning electron microscopy, transmission electron microscopy (TEM) and hardness. The initial grain size 150–200 nm increases up to 50 μm during annealing 1000 °C/8 h and thereafter demonstrates saturation. A linear correlation between volume fraction of coarse grains and hardness was found. It was identified by TEM that alumina nano-precipitates stabilize the dislocation microstructure against recovery very effectively and the grain coarsening is due to fast growth of very few dislocation free grains. Thus, the observed grain coarsening has the attributes of static recrystallization.     

Pointing gestures as a cognitive tool in young children: experimental evidence

This article explores the possible cognitive function associated with pointing gestures from a Vygotskian perspective. In Study 1, 39 children who were 2-4 years of age were observed in a solitary condition while solving a mnemonic task with or without an explicit memory demand. A discriminant analysis showed that children used noncommunicative pointing gestures only in the task with an explicit memory demand. In Study 2, 39 children who were 4-6 years of age completed an attentional task with and without the possibility of pointing. An analysis of variance showed that only those children who spontaneously pointed to solve the first task performed significantly worse in a second condition where pointing was impossible. These results suggest that besides its social interactive functions, pointing may also subserve private cognitive functions for children.