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1.
The over-load protective relay is widely used for motor protection. The reliability of the over-load protective relay directly affects the safe running of a motor. The reliability testing and reliability analysis of the over-load protective relay is an important way to improve the reliability of products. In this paper, the reliability test method of the over-load protective relay is studied, and the reliability tests of the typical products are carried out on a reliability tester developed by authors. In terms of the testing results, the reliability analysis is finished. The failure reasons are found and the measures are put forward to improve the reliability of the products.  相似文献   

2.
Prior research has demonstrated individual differences in children's beliefs about the stability of traits, but this focus on individuals may have masked important developmental differences. In a series of four studies, younger children (5-6 years old, Ns = 53, 32, 16, and 16, respectively) were more optimistic in their beliefs about traits than were older children (7-10 years old, Ns = 60, 32, 16, and 16, respectively) and adults (Ns = 130, 100, 48, and 48, respectively). Younger children were more likely to believe that negative traits would change in an extreme positive direction over time (Study 1) and that they could control the expression of a trait (Study 3). This was true not only for psychological traits, but also for biological traits such as missing a finger and having poor eyesight. Young children also optimistically believed that extreme positive traits would be retained over development (Study 2). Study 4 extended these findings to groups, and showed that young children believed that a majority of people can have above average future outcomes. All age groups made clear distinctions between the malleability of biological and psychological traits, believing negative biological traits to be less malleable than negative psychological traits and less subject to a person's control. Hybrid traits (such as intelligence and body weight) fell midway between these two with respect to malleability. The sources of young children's optimism and implications of this optimism for age differences in the incidence of depression are discussed.  相似文献   

3.
To date, a predominant focus within the field of ‘clerical collar crime’ has revolved around institutional-level church responses to child sexual abuse events, survivors and offenders. Comparatively, little attention has been directed towards the micro-level and in particular, examining clerical responses to child sexual abuse. This article presents empirical findings concerning the ‘everyday’ child protective practices of Anglican clergy in the Diocese of Tasmania, Australia. Research data was acquired through open-ended qualitative interviews conducted with a sample of 34 clergy in a broader study of clerical culture, habitus and life amidst the ‘church abuse crisis’. The framework of Situational Crime Prevention is employed to evaluate the feasibility of clergy’s child-safe practices and comment on how these practices could be further altered through professional development. Research findings demonstrate that clergy possess an active awareness of risk, and execute a series of protective measures to minimise both sexual interactions with children and allegations of impropriety.  相似文献   

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The objectives of this study were twofold: to examine the interaction of academic stress and student resourcefulness on subject grades and to identify the factors of parental support that contribute to student resourcefulness. The participants of this cross‐sectional study were 695 fifth and sixth graders from four major districts in Shanghai. Student resourcefulness was observed to moderate academic stress and subject grades. Moreover, perceived paternal emotional support and maternal informational support contributed significantly to student resourcefulness. The implications of this study for parent education are discussed.  相似文献   

6.
Direct questions on child maltreatment in population-based surveys are often limited by ethical and methodological issues. This restricts the ability of researchers to examine an important aspect of early adversity and its relationship to health and behavior. An alternative to excluding issues of maltreatment entirely in population-based surveys is to include questions on child and family involvement with child protective services (CPS). A school-based adolescent survey that included a question on child and family involvement with CPS yielded results that were generally consistent with other studies relating child maltreatment to health and behavioral outcomes such as psychological distress symptoms, delinquency, aspects of bullying, and health service utilization. Such findings suggest that questions on involvement with CPS may be a reasonable proxy for child maltreatment. Despite the lack of information on the reason for involvement or specific categories of maltreatment, CPS involvement questions highlight the shared familial experience that surrounds CPS involvement and serves as a general reflection of an adverse experience that can be utilized by researchers interested in early experiences.  相似文献   

7.
Prosocial and health protective behaviors are critical to contain the COVID-19 pandemic, yet adolescents have been difficult to engage. Attachment security promotes adolescents’ capacities to navigate stress, and influences prosocial and health behaviors. Drawing on a diverse sample of 202 adolescents (48% female; 47.5% Latinx) this study evaluated relations among attachment, mental health, and prosocial and health protective responses to the COVID-19 pandemic. Attachment security (age 12) predicted adolescents’ (age 15) COVID-19 prosocial (f2 = .201) and health protective behaviors (f2 = .274) during the pandemic via smaller-than-expected increases in mental health symptoms above pre-pandemic levels (age 14). Findings highlight the importance of attachment for supporting adolescents’ mental health responses to life stressors and promoting prosocial and health protective behaviors.  相似文献   

8.
BackgroundTo provide effective tailor made case management in Child Protection Services (CPS) a insight is needed into the specific characteristics of the target group. Using the ecological perspective of maltreatment, this study explored poorly known characteristics of the CPS population.ObjectiveTo distinguish CPS subgroups based on risk and protective factors enables tailor made case management that fits the specific needs of these subgroups.Participants and settingWe studied 250 Dutch CPS cases of family supervision by court order that had completed the LIRIK and Action Plan checklists in August 2014–March 2015.MethodsThis quantitative study analyzed risk and protective factors for children and parents reported in client files. Subgroups were identified by two-step cluster analyses. Chi-square analyses identified relations between parental risk subgroups and other groups.ResultsBuilding on the interplay between risk and protective factors on the levels of child, parent and environment, we found five distinct subgroups in the CPS population. The most vulnerable is parents with multiple problems (31%) or socio-economic problems (13%). Parts of both subgroup have limited protective factors. Parents with major life events (16%) or poor parenting (13%) are characterized by single-level problems. One subgroup (28%), the unaccepted, has no parental risk factors registered.ConclusionsStudying client files can lead to a better understanding of the healthcare needs of the CPS population. To develop and implement more effective case management requires constant dialogue between science, policy, and the experiences of both clients and professional.  相似文献   

9.
Given growing attention to inequities and hardest-to-reach children, there is increasing interest in how to support children in extreme settings, including through schooling. We focus on cash transfer programmes – poverty reduction initiatives aimed at human capital development – and adopt an ecological focus, considering children in informal and formal settings in households, schools, communities and broader polities. Using qualitative methodologies we explore how cash transfer programmes can facilitate schooling in Kenya, Palestine and Peru. We argue it is critical to consider both demand and supply side challenges and entry-points. We conclude that involving communities in programme design, monitoring and evaluation is essential to promote greater transparency and accountability, and ultimately child wellbeing outcomes.  相似文献   

10.
ABSTRACT

Frail older adults are increasingly being cared for in the community via home- and community-based service (HCBS) programs rather than nursing homes. This policy change challenges psychologists, social workers, and all geriatric practitioners to identify risk and protective factors in order to implement community-based policies in ways which promote the well-being of frail older adults.

The present small-scale exploratory study focused on the risk factors of social isolation and loneliness, and the potential of computer use to act as a protective factor. Forty HCBS clients were interviewed about their social convoys, social isolation, and loneliness, and their use of computers. Family members made up the largest percentage of participants’ social convoys (48%). Forty-two percent of participants were found to be socially isolated or at high risk for social isolation. Twenty-five percent of participants used computers and these participants experienced significantly less loneliness and had significantly larger social convoys. All participants were shown a 2.5 -minute video demonstrating a computer programmed to accommodate older adults and 80% expressed interest in using such a program.

Future action research projects are suggested to replicate the study’s findings. Such projects could involve collaboration between gerontologists and local area agencies on aging and “service-enriched” affordable senior housing sites.  相似文献   

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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   

13.
Previous studies have focused on the views of excluded children or those finding themselves in Pupil Referral Units (PRUs). Few, however, have focused on exploring views from a resilience perspective. Studies linked to resilience have tended to focus on exploring factors through quantitative rather than qualitative measures. This piece of research aimed to explore the potential protective factors of one PRU through the valuable voices of children and staff. The views of six children aged between 9 and 13 years, all with varying forms of behavioural, emotional and social difficulties, and partway through a PRU placement, were explored through semi-structured interviews supported by the use of tools and techniques to facilitate discussion. The views of four staff members were also obtained. Findings reveal the powerful perspectives that children and young people can bring in relation to what might be helping them within a particular environment. A number of potential protective factors, both within the environment and within-child factors that may operate as mechanisms in fostering positive social and academic outcomes, are identified. Implications of these findings for professional practice, and for children finding themselves in PRU provision, are discussed, with a focus on reintegration and the potential impact of changing environments for these children.  相似文献   

14.
Students who enrol in a Bachelor of Education (Early Childhood Education) at the Institute of Early Childhood, Macquarie University, with a Diploma in Children’s Services attained from a Technical and Further Education (TAFE) institution or a Registered Training Organisation (RTO) often experience challenges in their first professional experience unit. Utilising a phenomenological approach to understand the students’ previous knowledge and experiences as they navigated through their first professional experience unit, this qualitative study identified factors including institutional structures and course content as challenging to the diploma student. To ensure diploma students can successfully transition to and participate in their first professional experience unit at university, all stakeholders including the university, the academics teaching the students, and the students themselves need to commit to a multilevel support programme. Key findings from this study support the previous research on this student cohort.  相似文献   

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