Factors influencing school connectedness: Chinese adolescents’ perspectives

This study explored the concept of school connectedness and the factors that may influence its development with a sample of Chinese adolescents. Six focus groups involving 52 high school students were conducted using a set of predetermined discussion topics. Results indicated that the students fully understood the notion of school connectedness and could identify a number of key influences affecting its development. These factors could be grouped under several domains including teacher care, peer relations, broader school relationships, school disciplinary policies and practices, activities within the school’s guidance and counseling program, and opportunities for talent development. The students were also able to suggest practical strategies that schools might introduce to enhance and strengthen students’ acquisition of connectedness to school. The implications from the findings are discussed with particular reference to implementing comprehensive school guidance and counseling program in Hong Kong.     

The relationship of organizational corruption with organizational culture, attitude towards work and work ethics: a search on Turkish high school teachers

The aim of this study is to analyse organizational corruption and to determine its level of relation to attitude towards work, work ethics and organizational culture. The data in study have been collected from 441 public high school teachers employed in the central districts of Ankara in the school year of 2008–2009. Data have been collected through ‘Scale for Organizational Corruption’, ‘Scale for Attitude towards Work’, ‘Scale for Work Ethics’ and ‘Scale for Organizational Culture’, all of which were developed by the researchers in this study. Correlation and regression analysis techniques have been used in analysing the data. It is concluded from the study that there is a significant, though at an average level, relation between organizational corruption, organizational culture and work ethics and that there is a negative significant relation, though at a low level, between organizational corruption and attitude towards work. It is also concluded that the variables for attitude towards work, work ethics and organizational culture explain 38% of the variation in organizational corruption.     

Stress intensity factors under combined bending and torsion moments

This paper discusses stress intensity factor (SIF) calculations for surface cracks in round bars subjected to combined torsion and bending loadings. Different crack aspect ratios, a/b, ranging from 0.0 to 1.2 and relative crack depths, a/D, ranging from 0.1 to 0.6 were considered. Since the loading was non-symmetrical for torsion loadings, a whole finite element model was constructed. Then, the individual and combined bending and torsion loadings were remotely applied to the model. The equivalent SIF method, F*_EQ, was then used explicitly to combine the individual SIFs from the bending and torsion loadings. A comparison was then carried out with the combined SIF, F*_FE, obtained using the finite element analysis (FEA) under similar loadings. It was found that the equivalent SIF method successfully predicted the combined SIF for Mode I. However, discrepancies between the results determined from the different approaches occurred when F _III was involved. It was also noted that the predicted F*_FE using FEA was higher than the F*_EQ predicted through the equivalent SIF method due to the difference in crack face interactions.     

Cycle performance studies on a new HFC-161/125/143a mixture as an alternative refrigerant to R404A

In this paper, a new ternary non-azeotropic mixture of HFC-161/125/143a (0.15/0.45/0.40 in mass fraction), as a promising mixed refrigerant to R404A, is presented. The ozone depletion potential (ODP) of the new refrigerant is zero and its basic thermodynamic properties are similar to those of R404A, but its global warming potential (GWP) is much smaller than those of R507A and R404A. Meanwhile, theoretical calculations show that, under the working condition I (the average evaporation temperature: −23 °C, the average condensing temperature: 43 °C, the superheat temperature: 28 °C, the subcooling temperature: 5 °C), the volumetric refrigerating effect and specific refrigerating effect of the new mixture are 2.33% and 15.48% higher, respectively, than those of R404A. The coefficient of performance (COP) of the new mixture is 5.19% higher than that of R404A and the pressure ratio of the new mixture is 0.82% lower than that of R404A. Equally, under the working condition II (the average evaporation temperature: −40 °C, the average condensing temperature: 35 °C, the superheating temperature: 30 °C, the subcooling temperature: 5 °C), the volumetric refrigerating effect and specific refrigerating effect of the new mixture are 2.24% and 20.58% higher, respectively, than those of R404A. The COP of the new mixture is 4.60% higher than that of R404A and the pressure ratio of the new mixture is similar to that of R404A. The performances of the new mixture and R404A are compared in a vapor compressor refrigeration apparatus originally designed for R404A under several working conditions (condensing temperatures: 35–45 °C, evaporation temperatures: −40–−20 °C). Experimental results show that the new mixture can obtain a higher COP, by 6.3% to 12.1%, and a lower pressure ratio, by 1.8% to 6.6%, compared to R404A; although the discharge temperature of the new mixture is slightly higher than that of R404A. The advantages of the new mixture will be further verified in the actual system.     

Erstad,Ola (2013) Digital learning lives Peter Lang (New York & Bern) isbn 978‐1‐4331‐1163‐1 280 pp € 30.75 (paper and e‐book) http://www.peterlang.com/index.cfm?event=cmp.ccc.seitenstruktur.detailseiten&seitentyp=produkt&pk=78334&cid=448

Digital learning lives aims to describe a set of practices in school education and beyond that are well developed and based on digital technology. With rich examples from our digital lives, the author shows that digital natives should be able to go beyond spaces and places with which they are familiar. People closely interested in broadening the scope of digital learning and creativity should think of buying this. Gi‐Zen Liu     

Longitudinal Links Between Fathers’ and Mothers’ Harsh Verbal Discipline and Adolescents’ Conduct Problems and Depressive Symptoms

This study used cross‐lagged modeling to examine reciprocal relations between maternal and paternal harsh verbal discipline and adolescents’ conduct problems and depressive symptoms. Data were from a sample of 976 two‐parent families and their children (51% males; 54% European American, 40% African American). Mothers’ and fathers’ harsh verbal discipline at age 13 predicted an increase in adolescent conduct problems and depressive symptoms between ages 13 and 14. A child effect was also present, with adolescent misconduct at age 13 predicting increases in mothers’ and fathers’ harsh verbal discipline between ages 13 and 14. Furthermore, maternal and paternal warmth did not moderate the longitudinal associations between mothers’ and fathers’ use of harsh verbal discipline and adolescent conduct problems and depressive symptoms.     

The Role of Stimulus Novelty on Children's Inflexible Dimensional Switching

Children's ability to flexibly shift attention between different representational schemes was investigated using the dimensional change card sorting task. Across three experiments (N = 56 three‐year‐olds and N = 40 four‐year‐olds in 2 ; N = 14 three‐year‐olds in 3 ; and N = 14 three‐year‐olds in 4 ) the role of perceptual information on children's cognitive flexibility was investigated by manipulating different aspects of the task materials between pre‐ and postswitch phases. Better performance was observed when either task‐relevant (the color or shape of the images on the cards) or task‐irrelevant information (the background color or shape of the actual cards) was changed, with this improvement occurring when the changes were salient enough to induce a stimulus novelty effect.     

Perceived Discrimination Among African American Adolescents and Allostatic Load: A Longitudinal Analysis With Buffering Effects

This study was designed to examine the prospective relations of perceived racial discrimination with allostatic load (AL), along with a possible buffer of the association. A sample of 331 African Americans in the rural South provided assessments of perceived discrimination from ages 16 to 18 years. When youth were 18 years, caregivers reported parental emotional support and youth assessed peer emotional support. AL and potential confounder variables were assessed when youth were 20. Latent growth mixture modeling identified two perceived discrimination classes: high and stable, and low and increasing. Adolescents in the high and stable class evinced heightened AL even with confounder variables controlled. The racial discrimination to AL link was not significant for young adults who received high emotional support.     

Self‐Socialization of Gender in African American,Dominican Immigrant,and Mexican Immigrant Toddlers

This article advances a self‐socialization perspective demonstrating that children's understanding of both gender categories represents an intergroup cognition that is foundational to the development of gender‐stereotyped play. Children's (N = 212) gender category knowledge was assessed at 24 months and play was observed at 24 and 36 months. Higher levels of gender category knowledge and, more specifically, passing multiple measures of knowledge of both gender categories at 24 months was related to increases in play over time with gender‐stereotyped toys (doll, truck), but not gender‐stereotyped forms of play (nurturing, motion). In contrast to the long‐standing focus on self‐labeling, findings indicate the importance of intergroup cognitions in self‐socialization processes and demonstrate the generalizability of these processes to a diverse sample.