Sex differences in neural mechanisms of social and non-social threat monitoring

Adolescent males and females differ in their responses to social threat. Yet, threat processing is often probed in non-social contexts using the error-related negativity (ERN; Flanker EEG Task), which does not yield sex-specific outcomes. fMRI studies show inconsistent patterns of sex-specific neural engagement during threat processing. Thus, the relation between threat processing in non-social and social contexts across sexes and the effects perceived level of threat on brain function are unclear. We tested the interactive effect of non-social threat-vigilance (ERN), sex (N = 69; Male=34; 11–14-year-olds), and perceived social threat on brain function while anticipating feedback from ‘unpredictable’, ‘nice’, or ‘mean’ purported peers (fMRI; Virtual School Paradigm). Whole-brain analyses revealed differential engagement of precentral and inferior frontal gyri, putamen, anterior cingulate cortex, and insula. Among males with more threat-vigilant ERNs, greater social threat was associated with increased activation when anticipating unpredictable feedback. Region of interest analyses revealed this same relation in females in the amygdala and anterior hippocampus when anticipating mean feedback. Thus, non-social threat vigilance relates to neural engagement depending on perceived social threat, but peer-based social contexts and brain regions engaged, differ across sexes. This may partially explain divergent psychosocial outcomes in adolescence.     

Preceptors’ perceptions of supporting nursing students in prison health services: A qualitative study

BackgroundOur university commenced clinical placements for third-year nursing students in Prison Health Services (PHS) in 2014. Registered nurse preceptors employed in these services facilitated students’ experiential workplace learning, assessed their competence and assisted them to meet course objectives in this challenging environment. To date, no studies have examined preceptors’ experiences of supporting students in the prison health setting.AimThe study aim was to investigate preceptors’ perceptions of supporting nursing students undertaking clinical placements in PHS, in order to inform development of resources and processes.MethodsQualitative data were collected via a focus group and interviews with preceptors (n = 6) working in metropolitan PHS. Data underwent thematic analysis.FindingsParticipants valued the opportunity to support student learning, finding students contributed to the workplace by bringing in new ideas, and conducting beneficial projects. However, preceptors requested better rostering and workload management by their employer. They also wished for more detailed information from the university regarding student orientation and preparation to support student learning. They felt that the employer-provided preceptorship training did not fulfil their needs.DiscussionPreceptors in PHS settings shared many of the support needs of those in other settings, although some challenges were more specific to the setting.ConclusionThis paper makes recommendations on how preceptors in PHS can be better supported to fulfil the role.     

Quality of life after single-incision laparoscopic cholecystectomy: A randomized,clinical trial

Background

Controversy continues as to whether single-incision laparoscopic cholecystectomy, with the somewhat larger incision at the umbilicus, may lead to a worse postoperative quality of life and more pain compared with the more classic 4-port laparoscopic cholecystectomy. The aim of this study was to compare single-incision and 4-port laparoscopic cholecystectomy from the perspective of quality of life.

医科院校学生心理危机管理浅探

结合医科院校学生心理危机管理的实践，阐述大学生心理危机的内涵、类型、特征及心理危机管理的特性，并从建立预警系统、增设心理委员、危机处理的专业化及危机干预策略等方面探讨在医科院校加强学生心理危机管理的对策。     

不同性别的大学生心理健康调查研究

目的：探讨不同性别的大学生心理状况的影响。方法：以260名大学生为研究对象，采用SCL-90对不同性别的大学生进行了评定。结果：女生在抑郁、焦虑和恐怖方面高于男生，两者均存在显著性差异（P〈0．01）。结论：大学生中女性学生存在一定的心理缺陷，应针对性地开展专业教育，帮助大学生建立稳定、乐观和积极进取的健康心理。     

大学生龋病发病情况调查结果分析

目的了解高校大学生龋病的发病情况,为进一步搞好龋病的预防保健工作提供依据。方法通过整群随机抽样的方法选择在校大学生850名作为调查对象,进行现况调查,主要通过问诊、视诊、探诊等方法做检查,并做统计学分析。结果受检者850人中,患龋者430人,患龋率50.59%,其中女生患龋率63.64%,男生患龋率42.31%,男女生比较差异有统计学意义(p<0.01)。结论高校大学生患龋率较高,女生患龋率明显高于男生。应及时采取预防保健措施,以预防和减少龋病的发生。     

初中生信件咨询常见问题分析

目的通过分析初中生心理发展的特点，找出信件咨询常见问题的原因，提出问题解决的对策。方法通过对初中生心理咨询信件的整理分析。结果信件咨询作为学校心理咨询的一种非主流形式，由于其自身的种种缺陷并没有受到过多的重视。介从初中生的来询信件中确实反映了一些问题。结论对初中生进行心理健康教育有十分重要的意义。     

Biochemical activities of lysosomal acid hydrolases in leukemic cells

The biochemical activities of 8 lysosomal acid hydrolases in leukemic cells from 48 patients were examined. Characteristic alterations were found in α-mannosidase, β-galactosidase and N-acetyl-β-glucosaminidase activities of leukemic cells. The level of α-mannosidase activity was much higher in myelo(mono)genous leukemias (AML, AMoL, AMMoL, CML and CMMoL) than in lymphogenous ones (ALL, T-cell leukemia, hairy cell leukemia and CLL) without exception. The β-galactosidase activity also differed as a result of α-mannosidase, except in T-cell leukemia. In T-cell leukemia it was within the range of normal lymphocytes, but in the other lymphogenous leukemias it was significantly below normal. N-acetyl-β-glucosaminidase activity in myelo(mono)genous leukemic cells was above the range of normal granulocytes. The changes in these enzyme levels were consistent. The lymphocytic or myelocytic nature of three cases of acute undifferentiated leukemia could be determined by enzyme studies. In two cases it was lymphocytic and in one it was myelocytic. The enzymatic abnormalities were also found in morphologically mature neutrophils from patients with not only chronic types (CML, CMMoL) but also acute types (AMoL, AMMoL) of leukemias, and were similar to those of their respective leukemic cells. Analysis of lysosomal enzymes (at least three of those mentioned above), can elucidate one of the biochemical properties of leukemic cells and may be valuable in the differentiation of leukemias.