U.K. consumers' perceived risk of buying products from emerging economies: A moderated mediation model

Although considerable research has been conducted on consumer attitude towards foreign products, most of these studies focus on the attitude of products from Western developed countries. Our study intends to investigate the effects of consumers' national identification and culture sensitivity on their perceived risk of buying products from Eastern developing countries. Especially, this study advances the literature by identifying the mediation effect of consumer ethnocentrism and the moderating effect of consumer value consciousness. Taking China and India as focal emerging economies, the consumer survey (n = 308) in the United Kingdom produced the following results. First, U.K. consumers' national identification is positively related to their perceived risk of buying Eastern products through consumer ethnocentrism, whereas their cultural sensitivity has a negative relationship. Second, the effect of consumer ethnocentrism on the perceived risk of buying Eastern products is moderated by consumer value consciousness. Third, value consciousness also attenuates the indirect relationships between national identification or cultural sensitivity and perceived risk via consumer ethnocentrism.     

Serotonin transporter 5-HTTLPR genotype is associated with intrusion and avoidance symptoms of DSM-5 posttraumatic stress disorder (PTSD) in Chinese earthquake survivors

Background and Objectives: Prior studies have found that the serotonin transporter gene-linked polymorphic region (5-HTTLPR) interacts with trauma exposure to increase general risk for Posttraumatic Stress Disorder (PTSD). However, there is little knowledge about the effects of the interaction on distinct symptom clusters of PTSD. This study aimed to investigate the relation between the interaction of 5-HTTLPR and earthquake-related exposures and a contemporary phenotypic model of DSM-5 PTSD symptoms in a traumatised adult sample from China.

Design: A cross-sectional design with gene-environment interaction (G?×?E) approach was adopted. Methods: Participants were 1131 survivors who experienced 2008 Wenchuan earthquake. PTSD symptoms were assessed with the PTSD Checklist for DSM-5 (PCL-5). The 5-HTTLPR polymorphism was genotyped with capillary electrophoresis (CE) in ABI 3730xl genetic Analyzer.

Results: Although there was no significant interaction between 5-HTTLPR and traumatic exposure on total PTSD symptoms, respondents with the LL genotype of 5-HTTLPR who were highly exposed to the earthquake experienced lower intrusion and avoidance symptoms than those with the S-allele carriers.

Conclusions: The findings suggest that the 5-HTTLPR may have an important impact on the development of PTSD and add to the extant knowledge on understanding and treating of posttraumatic psychopathology.     

Visual attention shift to printed words during spoken word recognition in Chinese: The role of phonological information

The aim of this study was to investigate the extent to which phonological information mediates the visual attention shift to printed Chinese words in spoken word recognition by using an eye-movement technique with a printed-word paradigm. In this paradigm, participants are visually presented with four printed words on a computer screen, which include a target word, a phonological competitor, and two distractors. Participants are then required to select the target word using a computer mouse, and the eye movements are recorded. In Experiment 1, phonological information was manipulated at the full-phonological overlap; in Experiment 2, phonological information at the partial-phonological overlap was manipulated; and in Experiment 3, the phonological competitors were manipulated to share either fulloverlap or partial-overlap with targets directly. Results of the three experiments showed that the phonological competitor effects were observed at both the full-phonological overlap and partial-phonological overlap conditions. That is, phonological competitors attracted more fixations than distractors, which suggested that phonological information mediates the visual attention shift during spoken word recognition. More importantly, we found that the mediating role of phonological information varies as a function of the phonological similarity between target words and phonological competitors.     

Atomic imaging of the interface between M23C6-type carbide and matrix in a long-term ageing polycrystalline Ni-based superalloy

Besides the well-known cube-on-cube orientation relationship (OR) between M₂₃C₆ carbide and matrix, we have determined a new OR named as the twin-related OR in a long-term ageing Ni-based superalloy on the basis of the extensive and detailed electron diffraction analyses. Furthermore, by means of atomic-resolution high angle annular dark-field imaging technique which is implemented in the aberration-corrected scanning transmission electron microscope, we elucidated the interfacial characteristics between M₂₃C₆ and matrix for above two types of ORs. Taking into account of the interfacial characteristics, we propose that the twin-related OR possesses a higher total interfacial energy. Thus, its frequency of occurrence is lower than that of the cube-on-cube OR though both ORs are usually seen in the long-term ageing samples.     

医务人员对医患共同决策辅助工具的态度研究

循证医学实践要求在临床决策中整合最佳临床研究证据、医者经验、患者自身价值取向与所处具体临床情境。使用决策辅助工具进行医患共同决策可作为一种实践模式,有必要了解来自临床一线医务人员的态度。采用多阶段分层抽样方法,于国内11省及3个直辖市共32个城市的51所二级和三级医院发放问卷,探究使用决策辅助工具促进共同决策实施的可能性。对1 212份问卷的分析显示,73.2%的医务人员认可患者是高质量临床决策的参与主体;支持患者获知诊疗决策依据、认同患者决策辅助工具的积极效果与高学历等正相关。     

诉讼实践视野下病历真实性的认定

在医疗损害纠纷诉讼实践中,经常发生由于医疗机构提供的病历存在真实性问题导致鉴定不能,最后被法院直接推定存在过错的情形。该文在诉讼实践视野下,通过分析病历出现真实性问题的原因,厘清病历瑕疵与真实性问题的区别,并建议从证据学角度进行严格审查或委托专业机构对病历真实性进行鉴定,但同时可能会增加诉讼的成本,耗费诉讼的时间,使医疗损害案件的审理更加复杂、漫长,甚至会继续激化医患矛盾。从长远看,就需要国家相关部门对医疗机构病历真实性制定统一的规范及认定标准,既做到专业、公平、合法,又能简化诉讼程序。     

干细胞研究中的多向立体思维方法

干细胞研究取得了里程碑式的进展,在临床疾病的预防和治疗中具有广阔的应用前景,这些研究成果凝聚了各国研究人员的集体智慧,多向立体思维方法得到了充分体现。     

回避与趋近性负性人格特质对应激心血管反应模式的不同影响

本研究考察了回避与趋近性负性特质对不同强度心理社会应激刺激重复暴露的心血管反应、应激后心血管反应恢复、重复应激心血管反应的影响,并探讨了应激认知评价在其中的作用。167名大学生被试被随机分配到中/高强度应激条件中,连续采集其在基线期、首次应激期、恢复期、重复应激期四个阶段的心血管反应数据。结果发现:(1)无论应激强度如何,回避性负性特质预测首次和重复应激中较低(钝化)的心血管反应和应激后较差的恢复,而趋近性负性特质预测较大的心血管反应和应激后较差的恢复。(2)重复应激个人资源感知在回避性负性特质与重复应激心率反应之间起中介作用。因此,回避性负性特质与持续较低(钝化)的应激心血管反应和应激后较差的恢复相联系,而趋近性负性特质与较大的应激心血管反应和应激后较差的恢复相联系,即两类负性特质均表现出不适应的固化的应激心血管反应模式,这可能构成了两类不同负性特质增加罹患心血管疾病风险的生理机制。