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1.
Environmental education scholars have argued for the need to focus on identity as a more predictive factor than attitude of individuals’ environmental behavior. We examine individuals’ decision-making as a mediating process between identity and behavior. University undergraduates (N = 299) were surveyed, with a select sub-sample interviewed. As expected, environmental identity was correlated with pro-environment behavior (recycling). However, students with lower pro-environmental identity also recycled regularly. Similarly, analysis of decision-making revealed most students, regardless of their environmental identity, do not think much when recycling. Environmental structures such as presence of recycling bins surfaced as a powerful influence on pro-environment behavior.  相似文献   

2.
The consequences in adulthood of bullying, teasing, and other peer victimization experiences in childhood rarely have been considered in prospective studies. Studies of peer victimization are mixed regarding whether negative outcomes are explained by pre-existing child vulnerabilities. Furthermore, replication of prior studies with broader definitions and other methods and demographic groups is needed. Based on mother, father, and teacher reports at ages 10–12 years, we classified American boys (n = 206) from higher delinquency neighborhoods as perpetrators of teasing, victims, perpetrator–victims, or uninvolved (n = 26, 35, 29, and 116, respectively). Family income, parent and child depressive symptoms, and child antisocial behavior served as controls. Boys were assessed to age 34 years for suicide-attempt history (including death) and adult (ages 20–32 years) suicidal ideation, depressive symptoms, alcohol use, patterned tobacco and illicit drug use, and arrest. Relative to uninvolved boys, means or odds were higher for: suicide attempt among perpetrator–victims; all three groups for depressive symptoms and clinically significant symptoms; arrest for perpetrators and perpetrator–victims; number of arrests and violent arrest among perpetrator–victims; and patterned tobacco use among perpetrators and perpetrator–victims. With childhood vulnerabilities controlled, however, odds remained higher only for suicide attempt among perpetrator–victims, and criminal arrest and patterned tobacco use among perpetrators. Overall, childhood involvement in teasing predicted serious adverse outcomes in adulthood, in some cases beyond childhood risks. Programs that prevent peer victimization and identify already involved individuals for additional services may have positive impacts on the diverse public health problems of suicide, crime, depression, and tobacco use.  相似文献   

3.
Earthquake-resistant behavior of short-limbed wall   总被引:1,自引:0,他引:1  
The seismic resistance properties of the structures of short-limbed walls (SLW) were explored by horizontal cyclic loading experiments on 6 SLW specimens including 3 flanged and 3 non-flanged. The ratios of the depth to the width of the 3 specimens in each group were 5, 6.5 and 8, respectively. For non-flanged SLW structures with a small depth-to-width ratio, longitudinal bars in the limb yield first;and for those with a large depth-to-width ratio, stirrups in a linking beam yield first. For a structure with different depth-to-width ratio varying from 5 to 8, the failure mode is different. Correspondingly, different calculation model should be used in the design and engineering of the structure. For flanged SLW structures with whatever depth-to-width ratio, longitudinal bars in a flange or limb yield first. The SLW structures with a depth-to-width ratio of 6.5 exhibit the best comprehensive seismic resistant property and flanged walls have a better ductility than non-flanged ones.  相似文献   

4.
This study focused on an intelligent robot which was viewed as a language teaching/learning tool to improve children’s reading ability, reading interest, and learning behavior. The iRobiQ, with its multimedia contents, was employed to encourage children to read, speak, and answer questions. Fifty-seven pre-kindergarteners participated in this study, and they were divided into an experimental group (30 children using iRobiQ) and a control group (27 children using a tablet-PC). After 2 months of experiments, the reading ability of the experimental group was better than that of the control group. It was found that using iRobiQ as a learning tool had many advantages, for example, the enhancement of learners’ reading literacy, in comparison with the use of tablet-PC. In this study, there were three interesting findings: (1) iRobiQ is a more effective learning companion as compared to tablet-PC; (2) iRobiQ is a bidirectional interactive toy; and (3) iRobiQ can foster and promote the peer collaboration and competition because it has intriguing characteristics, particularly its communicative and interactive functions. The bidirectional interactive robots allow pre-kindergarten teachers to create more active and interactive learning environment for children and provide the children with more various learning contents.  相似文献   

5.
Based on the Social Information Processing model of parenting risk for child abuse, the present study examined the associations between mothers’ and fathers’ perception of child behavior and child abuse potential, as well as whether parenting stress mediates the association between these constructs. Two hundred and fifty-nine mother-father couples raising preschool children answered the Child Behavior Checklist (CBCL), the Parenting Stress Index (PSI), and the Child Abuse Potential Inventory (CAPI). The results of dyadic path analysis showed that perception of child behavior was related to heightened parenting stress and abuse potential in both mothers and fathers. Concerning partner effects, we found that mothers’ perception of child behavior problems was positively associated with fathers’ parenting stress and that the higher the mothers’ distress, the higher the fathers’ risk of physical abuse. Finally, parenting distress partially mediated the association between parents’ perception of child behavior and child abuse potential, with mothers’ perception of their children as problematic showing a significant indirect effect through distress on their own abuse risk and on fathers’ CAP as well. These findings suggest that parental distress may represent a critical mechanism by which parents’ negative views of their children contribute to abuse potential. Moreover, mothers seem to influence fathers’ tendency towards abusive behaviors.  相似文献   

6.
Promoting young children’s interpersonal safety knowledge, intentions confidence and skills is the goal of many child maltreatment prevention programs; however, evaluation of their effectiveness has been limited. In this study, a randomized controlled trial was conducted examining the effectiveness of the Australian protective behaviors program, Learn to be safe with Emmy and friends™ compared to a waitlist condition. In total, 611 Australian children in Grade 1 (5–7 years; 50% male) participated, with assessments at Pre-intervention, Post-intervention and a 6-month follow-up. This study also included a novel assessment of interpersonal safety skills through the Observed Protective Behaviors Test (OPBT). Analyses showed participating in Learn to be safe with Emmy and friends™ was effective post-program in improving interpersonal safety knowledge (child and parent-rated) and parent-rated interpersonal safety skills. These benefits were retained at the 6-month follow-up, with participating children also reporting increased disclosure confidence. However, Learn to be safe with Emmy and friends™ participation did not significantly impact children’s disclosure intentions, safety identification skills, or interpersonal safety skills as measured by the OPBT. Future research may seek to evaluate the effect of further parent and teacher integration into training methods and increased use of behavioral rehearsal and modelling to more effectively target specific disclosure intentions and skills.  相似文献   

7.
Shape memory behavior of SMPU knitted fabric   总被引:5,自引:0,他引:5  
A preliminary investigation of shape memory (SM) effects of SMPU (shape memory polyurethane) knitting fabric is presented in this paper. Three SMPU knitted fabrics series with different content of SMPU fibers: 100% SMPU, 50% SMPU and 50% cotton, 16% SMPU and 84% cotton are designed and manufactured in our lab. Their shape memory behaviors at different temperatures are characterized in terms of bagging. Our experimental results showed that shape memory effect can be improved with increasing content of SMPU fibers. A comparison between Lycra and SMPU knitted fabrics was also made to validate the shape memory effects of SMPU knitted fabrics.  相似文献   

8.
1. Introduction Rock mass is composed of rock blocks and various kinds of structural planes. Most structural planes are joints defined as cracks or fractures in rock along which there has been little or no displacement [1]. Under different engineering condition, the mechanical behavior of rock mass is different. In excavation of slope and cave, most region of the rock mass is unloaded. Especially in a high steep slope or a large underground project, the larger the excavation and the dimension…  相似文献   

9.
Educational Research for Policy and Practice - This study examined whether there are significant differences between effective, average, and ineffective urban schools with regard to (a)...  相似文献   

10.
Anti-seismic behavior of HRB400 reinforced steel bars   总被引:1,自引:0,他引:1  
1 Introduction Steel bar is one of the most important constructional materials ensuring the safety of buildings, and sufficient anti-seismic strength is required when it is applied to buildings in the region where an earthquake might occur. HRB335 steel bars are being used in China while 400 MPa steel bars are wildly used in Europe [1]. To ensure the security of buildings, 400 MPa steel bars have been developed in China. Before these steel bars being wildly used, a full-scale survey of the…  相似文献   

11.
By the proliferation of online courses, the social dimension of computer supported collaborative learning (CSCL) is becoming more important than before. Research shows that communicative behavior adaptation to the computer medium is a critical issue in CSCL social relationship development. Two dominant theories in the CSCL field, social information processing theory and adaptive structuration theory, argue that individuals do not simply receive the technology passively but they adapt their behavior to increase benefits from the technology. This paper develops an instrument in order to operationalize the notion of individual’s communicative behavior adaptability in CSCL. Through an exploratory factor analysis performed on a small sample of post graduate students of an online degree in an Australian university, three factors have been unveiled: (1) individual perception of self-representation, (2) individual perception of compatibility, and (3) individual perception of the use of computer technology. Identification of these factors is expected to facilitate understanding of individuals’ social behaviors in CSCL environment, which in turn will guide the design of CSCL systems. In addition, the paper examines the relationships between the extracted factors and four environmental factors: learner’s characteristics, course characteristics, instructor characteristics, and technology characteristics. The results show that none of these characteristics strongly affect perception of self-representation or perception of the use of computer technology. On the other hand, a strong relationship was found between perception of compatibility and learner’s and course characteristics. The reliability as well as validity of the study is examined and findings are discussed. These findings will provide further insights into the design process of CSCL systems.  相似文献   

12.
INTRODUCTIONTheTianzilingwastelandfillbuiltin 1991toproperlydisposeofmunicipalsolidwaste(MSW)hasadesignedservicelifeof13years.Itwasfilledstagebystageatthebeginningoftheelevationof 50 .5m .Bynow ,thelandfillhasreachedthelevelof 10 2 .5m ,whichex ceedst…  相似文献   

13.
14.
The present study focuses on the relationship between teacher empowerment and teachers’ organizational commitment, professional commitment (PC) and organizational citizenship behavior (OCB). It examines which subscales of teacher empowerment can best predict these outcomes. The data were collected through a questionnaire returned by a sample of 983 teachers in Israeli middle and high schools. Pearson correlations and multiple regression analyses indicated that teachers’ perceptions of their level of empowerment are significantly related to their feelings of commitment to the organization and to the profession, and to their OCBs. Among the six subscales of empowerment, professional growth, status and self-efficacy were significant predictors of organizational and PC, while decision-making, self-efficacy, and status were significant predictors of OCB. Practical implications of the study are discussed in relation to teachers, principals and policy-makers.  相似文献   

15.
BackgroundEarly adversity and negative experiences in the adoptive family can put adopted children at risk for emotional and behavior problems.ObjectiveThis study analyzes the influence of children’s preadoptive history and adoptive parents’ characteristics on the psychosocial adjustment of nationally and internationally adopted children in Germany.Participants and settingThe survey included 172 adopted children aged between 24 and 145 months and their adoptive parents.MethodsParents provided information about preadoptive history. Information about emotional and behavior problems was obtained from the parental version of the Strengths and Difficulties Questionnaire (SDQ). Parental well-being was obtained through a composite score of three standardized measures (self-efficacy questionnaire, Perceived Stress Scale PSS-4, Brief Symptom Inventory BSI); parenting behavior was assessed with the Alabama Parenting Questionnaire (DEAPQ).Results12.5% of the adopted children scored in the clinical range of the SDQ. In a multiple regression analysis, the experience of maltreatment and neglect was the most important predictor of emotional and behavior problems at time of assessment, followed by pre- and perinatal risk and parental stress regulation difficulties, = .423, F(4, 128) = 28.539. Increases in the number of risk factors present were associated with a greater odd of children scoring in the clinical range of the SDQ.ConclusionsMost of the nationally and internationally adopted children in this sample were well-adjusted. Prenatal and preadoptive risk as well as stress regulation capacities of the main caregiver contributed to the child’s development. An accumulation of risks increased the likelihood of adjustment problems in adopted children.  相似文献   

16.
An experimental system was set up to measure the temperature, pressure, heat transfer rate and mass flow rate in a semi-open two-phase thermosyphon. The behaviors of a semi-open two-phase thermosyphon during startup, shutdown and lack of water were studied to get complete understanding of its thermal characteristics. The variation of wall temperature, heat-exchange condition and pressure fluctuations of semi-open two-phase thermosyphons showed that the startup of SOTPT needs about 60-70 min; the startup speed of SOTPT is determined by the startup speed of the condensation section; the average pressure in the heat pipe is equal to the environmental pressure usually; the shutdown of SOTPT needs about 30~50 min; a semi-open two-phase thermosyphon has good response to lack of water accident.  相似文献   

17.
A new double-arch structure for the gate used as tidal barrage and sluice was adopted in Caoe River Dam in China. It was a spatial structure made up of the right arch, the invert arch, the chord, etc., and was designed to bear bilateral loads. To research the cyclic behavior of the new double-arch structure, a scale-model cyclic test was conducted. First, the test setup and test method were presented in detail, and according to the test results, the cyclic behavior and failure characteristics of this structure were discussed. Then by analyzing the test cyclic envelope curve, it was found the curve was divided into three stages: the elastic stage, the local plastic stage and the failure stage at the local yield point and structural yield point. The gate model has local yield strength and structural yield strength, with both their values being bigger than that of the designing load. Therefore, the gate is safe enough for the projects. At last, dynamic property of the gate was analyzed considering additional mass of the water. It was found that the tidal bore shock would not cause resonance vibration of the gate.  相似文献   

18.
To answer the question of whether teaching social and emotional skills to foster social–emotional development can help schools extend their role beyond the transfer of knowledge, the authors conducted a meta‐analytical review of 75 recently published studies that reported the effects of universal, school‐based social, emotional, and/or behavioral (SEB) programs. The analyzed interventions had a variety of intended outcomes, but the increase in social skills and decrease in antisocial behavior were most often reported. Although considerable differences in efficacy exist, the analysis demonstrated that overall beneficial effects on all seven major categories of outcomes occurred: social skills, antisocial behavior, substance abuse, positive self‐image, academic achievement, mental health, and prosocial behavior. Generally, immediate effects were stronger than delayed effects, with the exception of substance abuse, which showed a sleeper effect. Limitations of the analysis and moderators of the effectiveness of SEB programs in schools are discussed in the final section of the article.  相似文献   

19.
《Child abuse & neglect》2014,38(9):1521-1532
The present study investigated the perceived emotional behavior of alleged child victims when disclosing sexual abuse in a forensic interview. It also addressed whether the perceived emotional behavior influenced prosecutors’ evaluations of children's potential as witnesses and prosecutors’ recommendations to press charges. Ninety-eight videotapes of forensic interviews with alleged child sexual abuse victims (4- to 17-year-olds) were coded for behavioral indicators of emotions. Case file information and district attorney evaluations were also coded. Results indicated that children were not generally perceived as being emotional (e.g., sad) during disclosure. However, the perceived intensity of expressed emotions was greater when children disclosed the alleged abuse compared to when they discussed more neutral topics in rapport building. Greater perceived emotional withdrawal by children at disclosure was associated with more negative evaluations of child witnesses by prosecutors. Moreover, children's emotional behaviors, as noted by prosecutors, were among the predictors of prosecutors’ recommendations to file charges. Practical implications are discussed.  相似文献   

20.
The purpose of this review is to explore the nature of gang behavior in U.S. schools, with a particular focus on the extent to which such behavior affects or exacerbates the larger issue of school violence. An unanticipated finding was the absence of strong empirical support for school gang violence. The evidence does show youth gangs have changed dramatically over the last several decades and have become more violent, largely due to drugs and weapons-carrying. One major impact of this violence on schools has been the dissolving of the school as the neutral zone, where gang activity ceased. Thus, it appears that the similar turf issues of the street gangs have infiltrated the schools. The review explores problems related to school gang violence definitions and literature, trends in school-related gang activity, reasons for gang membership, at-risk youth, and proposed strategies for ameliorating the problem.  相似文献   

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