X65管线钢在琼海、江津、青岛地区的五年大气腐蚀规律     

庞涛  马颖  石争鸣 《武汉工程职业技术学院学报》2014,(2):13-15

开展武钢生产的X65管线钢在琼海、江津、青岛5年大气暴露腐蚀试验,得到了X65管线钢在三地的大气腐蚀速率的数据,实验结果表明试验钢在琼海站耐蚀性最好,江津站次之,青岛站最差。分析环境因素得出影响材料耐腐蚀性能的关键因素是SO2沉积率、H2S含量和SO2-4含量。通过数据回归拟合,得出X65管线钢在三个实验站的腐蚀规律均符合公式D=A·tn。  相似文献   

Protective factors associated with resilient functioning in young adulthood after childhood exposure to violence     

《Child abuse & neglect》2014,38(12):1985-1994

Children may be subjected to many forms of violence and a significant number will experience multiple victimizations. These children are at high risk for developing psychological and emotional difficulties that may last into adulthood. Despite the increased risk for psychopathology, a substantial percentage of young adults exhibit resilient functioning following a history of childhood violence. This study examines the role of social support, spirituality, and emotional intelligence in promoting resilience during emerging adulthood. Participants included 321 young adult American college students, age 18–24, who experienced childhood violence, including community violence, interpersonal aggression, child maltreatment, peer/sibling victimization, and/or sexual assault. Findings revealed that this sample was highly victimized, with an average of 9 violent experiences reported during childhood. Hierarchical multiple regression analyses indicated that after controlling for exposure to childhood victimization, other potentially traumatic events, and current depression and anxiety symptoms, higher resilience during emerging adulthood was associated with greater spirituality, greater emotional intelligence, and support from friends (but not from family). Findings suggest that the potency of protective factors outweighs that of adversity and psychopathology when predicting resilient functioning. By identifying variables that can enhance resilience, this study offers unique insight into how functioning may be improved by both individual and environmental factors.  相似文献   

Subtypes of exposure to intimate partner violence within a Canadian child welfare sample: Associated risks and child maladjustment     

《Child abuse & neglect》2014,38(12):1934-1944

Children exposed to intimate partner violence (IPV) are at increased risk of experiencing behavioral difficulties including externalizing and internalizing problems. While there is mounting evidence about mental health problems in children exposed to IPV, most of the research to date focuses on IPV exposure as a unitary, homogeneous construct. The purpose of this study was to examine the association between subtypes of IPV exposure on child functioning and presence of harm within a child welfare sample. Given the evidence of the “double whammy” effect, co-occurring IPV exposure was also examined. Using data from the Canadian Incidence Study of Reported Child Abuse and Neglect – 2008 (n = 2,184) we examined whether specific IPV exposure subtypes or their co-occurrence resulted in a greater risk of child maladjustment. Information was obtained from child welfare workers’ reports. Caregiver and household risk factors were also examined. Co-occurring IPV exposure resulted in the greatest risk for reported child maladjustment. Exposure to emotional IPV and direct physical IPV were significantly associated with increased risk of internalizing problems and presence of harm. Caregiver mental health and lack of social support emerged as significant risk factors for behavior problems. This study adds to the evidence that exposure to subtypes of IPV may be differentially related to child functioning. Given that risk factors and child functioning is part of the decision-making framework for case worker referrals, this study provides important preliminary evidence about how the child welfare system operates in practice with respect to sub-types of exposure to IPV. These findings suggest that intervening with children exposed to different types of IPV may require a tailored approach.  相似文献   

Online Threat,But Television is Still Dominant     

《Journalism Practice》2013,7(6):690-704

As news media change, so media news consumption changes with them. This paper, part of a larger international research project involving 11 countries in four continents (Americas, Europe, Asia and Australia), is focused on news consumption. As the range of media outlets has increased dramatically in recent years, this paper asks which news sources are people regularly watching, listening to or reading to understand what is happening in the world. Moreover, the paper tries to detect whether television news remains at the top of the news hierarchy, seeking to identify differences in news consumption in different countries with different media cultures and, consequently, different media behaviour, as well as to reveal differences in news media uses between older and younger generations.  相似文献   

PTSD and marital satisfaction in military service members: Examining the simultaneous roles of childhood sexual abuse and combat exposure     

Adam B. Miller  Karen E. Schaefer  Keith D. Renshaw  Rebecca K. Blais 《Child abuse & neglect》2013

Childhood sexual abuse (CSA) is relatively common and is associated with a multitude of negative outcomes in adulthood, including posttraumatic stress disorder (PTSD) and lower marital satisfaction. However, CSA has been understudied in military samples. The purpose of the present study was to examine the relative contributions of CSA and combat exposure to PTSD and marital satisfaction. Two hundred eighteen National Guard/Reserve veterans who deployed overseas between 2001 and 2008 completed self-report measures of CSA, marital satisfaction, combat exposure, and PTSD symptom severity. Data were analyzed using linear regression and path analysis to evaluate a comprehensive model including all variables. CSA accounted for unique variance in PTSD symptom severity independent of combat exposure. CSA also had a negative direct association with marital satisfaction, independent of combat exposure and PTSD symptom severity. In contrast, combat exposure had only a negative indirect association with marital satisfaction via PTSD when all variables were examined simultaneously. CSA accounted for unique variance in both PTSD symptom severity and marital satisfaction in this sample of combat veterans. Clinically, results suggest that assessment and treatment of CSA is indicated for military veterans suffering from PTSD. Further, treatment of CSA may improve marital satisfaction, which may positively affect psychological functioning in the veteran.  相似文献   

Diagnosis,Evaluation, and Treatment of Lead Poisoning in General Population     

D'souza HS  Dsouza SA  Menezes G  Venkatesh T 《Indian journal of clinical biochemistry : IJCB》2011,26(2):197-201

Among the heavy metals, lead still remains the major toxic pollutant of the environment. Human exposure to lead can occur through numerous pathways including air, food, dust, soil, and water. In the present study 14 lead poisoned patients with non-occupational lead exposure were evaluated. They were followed up and compared against the controls with no history of lead exposure. The patients had high blood lead levels and symptoms of weakness, dizziness, abdominal pain, generalized body ache, loss of appetite, and anxiety. Repeated course of chelation therapy helped to bring down their body burden of lead. Alternative sources for lead exposure can cause severe lead poisoning in general population. Screening and medical management of such individuals is very important to identify and eliminate sources of lead. The treatment and management requires a thorough medical evaluation and environmental intervention.  相似文献   

体育赛事背景广告曝光参数测算软件的设计与实现     

张峰筠  肖毅 《首都体育学院学报》2010,22(1)

在我国,赛事收入的最主要来源是赞助收入。赞助商广告牌的曝光参数(时间、频次、位置)是评估赞助价值的主要依据。在体育赛事中由于赞助广告牌是作为背景广告出现的,所以,目前国内外通用的赞助价值评估方法是基于背景广告曝光率的计算方法,通过人工观察进行测算,其不足之处在于费时、费力,易出差错。以体育赛事背景广告曝光参数测算为主要研究对象,主要目的在于改进人工测算的不足,在对软件设计原理及需求做详细分析的基础上,通过文献资料法、访谈法、系统分析法、程序语言设计等方法探讨如何设计与开发体育赛事背景广告曝光参数测算软件,其中软件主要实现了赛事背景广告曝光参数测定,赛事转播机位测定及测算结果查询导出的功能,安装与运行环境简单,操作方便,通过对中超赛事的测试,证实软件测算较以往人工测试快捷、准确、自动化程度高,效果良好。从理论和实践上证明体育赛事背景广告曝光参数测算软件的设计与开发具有一定的意义,是一种背景广告曝光参数测定的有效工具。  相似文献   

怒江泸水县四村村民媒介接触状况调查报告     

罗梅  杨晓宏 《保山学院学报》2010,(1):69-73

怒江州广播电视极低的覆盖率和不稳定的信号,使大众传播处于"传而不达"的状况,同时语言瓶颈使得大众传播不但"不达"且"不通"。但电视广播依然还是民众最常接触的媒介,少部分民众已经意识到大众传媒的力量,并且积极地在寻求运用这种力量的方法。  相似文献   

我国标志性体育赛事传播力研究——以“武网”为例     

汪蓓  万晓红 《武汉体育学院学报》2018,52(7):34-39

标志性体育赛事传播力问题变得日益重要,论文借鉴媒体传播力的评价指标建构标准,结合标志性体育赛事的特征,从公众认知度、媒体曝光度、网络关注度以及城市形象引导度四个维度建构了标志性体育赛事传播力评价指标体系,并以"武网"为典型案例,借助问卷调查和网络大数据分析相结合的方式,对标志性体育赛事的传播力现状做了测量。研究发现："武网"的公众认知度、媒体曝光度、网络关注度以及城市形象引导度都比较高;尤其在引导受众了解、评价和向往武汉方面效果明显;但动态地看,"武网"的赛事传播力则有逐年下降的趋势;此外,从地域分布来看,"武网"的赛事传播力辐射范围仍以武汉和湖北为主,兼顾东南沿海等发达地区,在全国范围内的影响仍显不足。论文建议通过强化政策的连续性、实施精准营销、提升赛事新闻价值等途径,保持社会热度、改善用户体验、增加曝光几率,以解决"武网"赛事传播力在空间上的延伸和时间上的持续问题。  相似文献   

数字内容产业的自我规制研究     

李鹏 《软科学》2017,(2):33-37

构建了包含政府、运营商、提供商和消费者等4个利益主体的自我规制体系.结果显示,运营商作为规制者,如果其曝光提供商不良行为的概率增加,提供商就需要向运营商输送更大的利益,从而合谋意愿降低;消费者投诉成本降低,虽然导致提供商向运营商输送的利益减少,但合谋行为被发现的概率增加,从而合谋意愿降低.串谋均衡时,运营商的边际监督激励低,高水平的欺诈不仅取决于低水平的监督,还取决于提供商的行贿成本.  相似文献