Professional drivers’ fatigue as a problem of the modern era

ObjectiveAll around the world numerous studies have been carried out and indicated that 20–50% of commercial vehicle accidents occur because of fatigue. Professional drivers represent an important category of drivers who are present in traffic on a daily basis transporting passengers or goods and their responsibility is at a very high level. These drivers are most exposed to the impact of fatigue. The review of the literature has provided three main factors which can influence the onset of fatigue: sleep factors, work factors, health factors. The main aim of this study was to determine the influence of the three main factors of fatigue between bus and truck drivers in the Republic of Serbia.MethodsThe survey has been conducted among bus and truck drivers who are employed in transportation companies across the Republic of Serbia. The research consists of collecting and analyzing bus and truck drivers’ answers according to the above mentioned factors which influence the occurrence of fatigue.ResultsIn this study we have found that circadian rhythm, sleep and work factors have an impact on drivers’ fatigue. On the other side, time of going to sleep has no impact on the quality of sleep and on fatigue. The results show that if the drivers work over the legal limit, they are 3 times more likely to sleep less than 6 h in 24 h and if they sleep less than 6 h, it is likely that the poor quality of their sleep will be 8 times higher. The poor quality of sleep reduces driver performance, and therefore increases the risk of accidents.Conclusions2 of 3 investigated factors have an impact on the occurrence of fatigue. The third factor, health factor, should be examined in more detail, and other elements should be analysed in order to determine their influence on the fatigue.     

Demographic correlates of normative beliefs about aggression among adolescents from low income communities in South Africa

The present study investigated the association of age, gender, and family size with normative beliefs about aggression among South African adolescents from low-income areas. Adolescents (n = 229; mean age = 16 years; female = 61%) completed the Normative Beliefs about Aggression Scale. Step-wise regression analyses were conducted with age, gender, and family size as predictors of normative beliefs about aggression. Boys demonstrated greater endorsement of physical, non-physical, and relational aggression; as compared to girls. Living in an extended family was associated with less approval of aggression. Aggression reduction interventions with children from disadvantaged areas need to consider the role of gender and family-related factors.     

老子之道及其创生因子探究

"道"是老子哲学体系中的核心,老子不仅提出虚空的道是宇宙的本体,是无法用语言来描述的,而且说明道是混成之物,即道是有精妙的内部结构属性的,并从不同的侧面说明了认识"道"是混成之物的路径。道是由无限创生因子混融而成的系统,宇宙在创生及万物演化的过程中,道或无限的创生因子始终起着根本性的作用,即宇宙间的一切事物现象都是道所为。道是由创生因子混融而成的思想观点,可为现代宇宙论的发展提供新的思维维度,为科学探索真空世界的奥秘提供新的研究途径,推进现代宇宙学的进步。     

Student Service Members/Veterans’ Mental Health: Who Is at a Greater Risk for Posttraumatic Stress Symptoms on College Campuses?

Using a cross-sectional design, this study surveyed 144 students on campus who are service members and veterans to determine whether posttraumatic stress (PTS) symptoms are significantly correlated with demographic factors (e.g., age, race and marital status), risk factors (e.g., military branch and combat exposure), and resources (e.g., social support and religiosity). The results confirm previous findings on correlates of PTS symptoms, provide new information about service members on campus that are at a greater risk for PTS and highlight resources that are associated with reduced PTS symptoms. These findings not only give institutions of higher learning insight into identifying specific demographics that are at a greater risk for PTS symptoms on college campuses, but also point to ways of supporting student service members/veterans by accurately targeting existing resources to the most affected populations.     

A matter of style? Driver attributional ‘style’ in accounting for the driving of others as protective or as predisposing drivers towards retaliatory aggressive driving

Driver cognitions about aggressive driving of others are potentially important to the development of evidence-based interventions. Previous research has suggested that perceptions that other drivers are intentionally aggressive may influence recipient driver anger and subsequent aggressive responses. Accordingly, recent research on aggressive driving has attempted to distinguish between intentional and unintentional motives in relation to problem driving behaviours. This study assessed driver cognitive responses to common potentially provocative hypothetical driving scenarios to explore the role of attributions in driver aggression. A convenience sample of 315 general drivers 16–64 yrs (M = 34) completed a survey measuring trait aggression (Aggression Questionnaire AQ), driving anger (Driving Anger Scale, DAS), and a proxy measure of aggressive driving behaviour (Australian Propensity for Angry Driving AusPADS). Purpose designed items asked for drivers’ ‘most likely’ thought in response to AusPADS scenarios. Response options were equivalent to causal attributions about the other driver. Patterns in endorsements of attribution responses to the scenarios suggested that drivers tended to adopt a particular perception of the driving of others regardless of the depicted circumstances: a driving attributional style. No gender or age differences were found for attributional style. Significant differences were detected between attributional styles for driving anger and endorsement of aggressive responses to driving situations. Drivers who attributed the on-road event to the other being an incompetent or dangerous driver had significantly higher driving anger scores and endorsed significantly more aggressive driving responses than those drivers who attributed other driver’s behaviour to mistakes. In contrast, drivers who gave others the ‘benefit of the doubt’ endorsed significantly less aggressive driving responses than either of these other two groups, suggesting that this style is protective.     

工作倦怠的测量及其干预研究综述

工作倦怠不仅会给组织和家庭带来消极的影响,而且会严重损害个体的身心健康,因而有必要采取措施进行干预。文章首先描述工作倦怠的定义,接着对其测量进行介绍,然后在此基础上分析其相关的影响因素,并指出如何实现有效的干预,最后对研究的热点进行了展望。     

结直肠癌患者术后寻求中医药治疗的质性研究

为了解结直肠癌术后患者寻求中医药治疗的目的、体验、信念.采用目的抽样的办法,选取18位结直肠癌术后患者进行个人深入访谈.发现结直肠癌术后的患者,选择中医药治疗的目的主要有以下几个方面：减轻放、化疗的不良反应,使身体尽快恢复,提高生活质量,防止复发转移等.随着治疗的进行,患者对中医的认识逐步提高.中医药的疗效主要体现在各种症状及客观指标的改善上,近期良好的治疗体验使患者对实现远期目标更具信心.     

急性心肌梗死患者院前延误的影响因素

急性心肌梗死(AMI)患者的治疗关键在于早期诊断和及时开通闭塞的冠状动脉,患者在发病后能否及早到院接受再灌注治疗,对患者的治疗效果和预后有重要影响.院前延误时间(PDT)即为从患者出现症状至到达医院接受治疗的时间.AMI患者就医大多是延迟的,主要原因是患者不能决定自己的症状是否需要治疗,也就是患者决定就医时间延长.本研究目的是分析造成急性心肌梗死患者院前延误的相关影响因素,为患者赢得最佳治疗时间提供理论依据.     

The Interactive Effects of Self‐Perceptions and Job Requirements on Creative Problem Solving

Over the years, researchers have focused on ways to facilitate creativity in the workplace by looking at individual factors and organizational factors that affect employee creativity (Woodman, Sawyer, & Griffin, 1993 ). In many cases, the factors that affect creativity are examined independently. In other words, it is uncommon for researchers to look at the interaction among individual and organizational factors. In this study, it is argued that to get a true understanding of how to maximize creativity in the workplace, organizational researchers must look at the interaction between organizational factors and individual factors that affect employee creativity. More specifically, the current study looked at an individual's perceptions about his or her ability to be creative (i.e., individual factor) and perceptions of requirements for creativity in the workplace (i.e., an organizational factor). The results indicated that individuals who have a high belief about their ability to be creative (an individual factor) were most creative when they also perceived requirements for creativity in the workplace (an organizational factor). Furthermore, individuals who had low perceptions of creative ability were still able to perform creatively when they had high perceptions of requirements for creativity. This suggests that, to maximize creativity, organizations should focus on both individual and organizational factors that affect employee creativity.     

Maternal Depressed Mood and Perceptions of Child Temperament

Research has suggested that women who experience postpartum depression are subsequently more likely to perceive their preschool-aged children as temperamentally difficult and maladjusted. However, previous studies have not controlled for the effects of concurrent depression levels on maternal ratings of child temperament or evaluated the accuracy of maternal reports. In the present study we assessed maternal and paternal ratings of child temperament 2 years after subjects had participated in a study of postpartum depression. The findings indicate that correlations between postpartum depression and subsequent child temperament ratings were accounted for statistically by concurrent levels of depression. Although fathers' ratings corroborated some aspects of maternal perceptions, levels of parental agreement were only moderately high. Moreover, discrepancies between the parents' reports were significantly associated with maternal depression, indicating that parental disagreement is more likely when the wife is dysphoric.