Vicarious trauma: The psychological impact of working with survivors of trauma for South African psychologists

Traumatic events are highly prevalent in South African society and psychologists who work with survivors of trauma have been identified as particularly at risk of being adversely affected by their work, and experiencing vicarious trauma. This study aimed to explore the experiences of a group of South African psychologists who work predominantly with trauma survivors. Individual semi-structured interviews were conducted with six psychologists (females = 67%). The predominant type of trauma encountered by participants in clinical practice was interpersonal trauma in the form of physical and sexual abuse (83%). Data were analysed using thematic analysis. All participants reported symptoms of vicarious trauma including disruption in cognitive schemas, symptoms characteristic of post-traumatic stress disorder, and somatic symptoms. Participants also reported vicarious post-traumatic growth including an enhanced sense of interpersonal connectedness and positive changes in their philosophy of life and self-perceptions. The findings serve to sensitise psychologists to the impact of working with trauma survivors so as to enhance the efficiency of psychological service delivery to traumatised populations.     

Electrodeposition,assisted by abrasive polishing,of crack-free hard chromium with compressive stress

Crack networks and residual tensile stresses are general characteristics of electrodeposited hard chromium coatings. In this paper, crack-free hard chromium coatings with compressive stresses have been obtained by an electrodeposition process assisted by abrasive polishing. The deposited coatings had mirror-like smooth surfaces, values of hardness in the range 800–1000 HV and compressive stresses between 1000 and 1600 MPa. A model involving hydrogen disentanglement from the lattice is proposed to explain the effects of abrasive polishing on the complete elimination of cracks and the generation of a compressive stress. This explanation is discussed in terms of the variations in properties of the coating with the rotation speed of the cathode.     

Journeys With People Who Have Dementia: Connecting and Finding Meaning in the Journey

This article begins with a reflective journey with one person who was diagnosed with early onset dementia. It then turns to reflect on the subsequent journey of research with other people who have dementia and where they find meaning in life, through the process of spiritual reminiscence. The article views dementia through a theological lens that sees those who have dementia as people made in God’s image and the implications this has for the lives of those living with dementia and those who care for them. One of the important findings from research conducted in the small group process was that meaning was almost synonymous with relationship and connectedness for participants, just as it is for people who don’t have dementia.     

Obsessive Compulsive Symptoms Predict Posttraumatic Growth: A Longitudinal Study

Although posttraumatic growth (PTG) has received growing attention, the relationship between PTG and distress remains unclear. This longitudinal study examines the relationship between posttraumatic obsessive-compulsive (OC) symptoms and PTG. Israeli veterans were followed over 17 years using self-report questionnaires of OC symptoms, posttraumatic stress disorder (PTSD), and PTG. Hierarchical regression analyses demonstrated that OC symptoms predicted PTG, even when initial PTG levels and PTSD symptoms were controlled for in the combatants group. These preliminary findings suggest that OC symptoms may play an important role in facilitating psychological growth. Future research is warranted to explore the mechanisms responsible for this relationship.     

用户换位型思维的形成及对机会信念绩效的影响

用户换位型思维是创业者进行机会识别并应对市场竞争的重要因素,但已有研究忽视了其模式、形成机理及对机会信念绩效的影响。针对此问题,基于结构映射理论与注意力参与模型解构用户换位型思维模式,包括吸收式、归纳式、启发式和分析式;然后,从“个体-用户”双元视角探讨与用户有关的先验知识、灵活的角色导向、认知复杂性以及用户需求不确定性和碎片化等因素对用户换位型思维形成的正向影响;最后,以机会信念形成速度和创新性为绩效指标,阐释用户换位型思维模式对机会信念形成绩效的影响,并考察适应新的信息环境和调用自身知识结构的认知管理策略对用户换位型思维模式与机会信念形成绩效的调节作用。研究结论将丰富用户换位型思维的内涵,拓展结构映射理论与注意力参与模型的解释范围,也为指导创业者运用用户换位型思维去识别机会提供参考,对创业者思考与理解用户有重要意义。     

Ethnoracial comparisons in anxiety and depression outcomes among Native Hawaiian and Pacific Islander college students

We explored differences in distress scores at intake as well as the change in anxiety and depression scores over the course of 12 therapy sessions for Native Hawaiian and Pacific Islander (NHPI) college students. Data were collected from the Center for Collegiate Mental Health (N = 256,242). Results support the notion that NHPI college students experience anxiety and depression in therapy differently from other ethnic groups with moderate-to-large magnitudes of effect.     

白细胞介素-6和胎盘生长因子对子痫前期影响的研究

为探讨影响子痫前期患者发病的因素,对照性检测了子痫前期患者羊水中白细胞介素-6和胎盘中胎盘生长因子的变化。结果显示：子痫前期患者白细胞介素-6和胎盘生长因子均明显下降,且二者下降水平呈高度正相关。故联合检测白细胞介素-6和胎盘生长因子将对评估子痫前期的病情及指导临床决策具有重要意义。     

入学过渡期高中新生大五人格与主观社会地位变化轨迹的关系：基于潜变量增长模型的分析

为了考察入学过渡期高中新生主观社会地位（subjective social status, SSS）的变化轨迹及人格在其中的作用,本研究对546名高一新生进行了历时4个月的4次追踪测试。基于潜变量增长模型的分析结果显示：（1）SSS呈阶段化线性增长,且个体间差异显著;（2）人格中的外倾性、宜人性、责任心和开放性均能显著预测SSS的初始水平;（3）外倾性、宜人性和神经质对SSS的第一阶段变化速度有显著预测作用。结果表明,SSS会在新生入学后1个月内初步形成,且人格与其变化轨迹有关。     

血管内皮生长因子与结直肠癌的研究

血管内皮生长因子（vascular endothelial growth factor,VEGF）是一高度特异作用于内皮细胞的糖蛋白,是目前发现的最重要的肿瘤血管生长因子之一。结直肠癌的生长、侵袭和转移与血管内皮生长因子有密切的关系,VEGF在结直肠癌治疗中的作用日益突出。本文就VEGF的功能、在结直肠癌中的表达和治疗的作用作一综述。     

童年早期社会能力的发展：一个潜变量增长模型

对119名幼儿进行历时两年的三次追踪测试, 采用潜变量增长建模, 检验童年早期的社会能力是否呈线性增长, 并考察气质、性别、母亲受教育程度及其交互作用对社会能力发展水平与速度的预测作用。结果发现：(1)社会能力在两年中呈线性增长, 起始水平及发展速度均存在显著的个体差异; (2)女孩起始的社会能力水平高于男孩; 母亲受教育程度越高, 儿童起始的社会能力水平就越高; (3)气质节律性对社会能力增长速度的预测因儿童性别而异：节律性能够负向预测女孩社会能力的增长速度、正向预测男孩社会能力的增长速度。