Improving interactive facility with vision training

The measurement of accommodative facility has gained acceptance in optometric examinations because it can provide valuable information on the dynamics of accommodation. Accommodative infacility is usually treated by prescribing various orthoptic exercises. This study arose from a need to investigate the effects of specific vision training procedures on binocular accommodative facility (interactive facility). The results indicate that even relatively short periods of accommodative rock training can improve the level of interactive facility.     

3.7PBq放射生物学研究用60Co辐照装置

本⁶⁰Co辐照装置(源强3.7PBq=10⁵ci)具有平衡式传动机构,比较可靠的安全联锁系统和防护措施,用微型电子计算机设计照射方案和控制运行.装置已用于放射医学、剂量学和辐射加工等领域.     

Studies of aqueous humour dynamics in man. VI. Effect of age upon parameters of intraocular pressure in normal human eyes

Parameters of aqueous dynamics have been evaluated for both eyes of each member of a group of young normal volunteers and of a group of old normal volunteers. In the old volunteers, the observed lower total facility is comprised of a lower true facility of outflow and a lower pseudofacility. The reduced outflow facility is partly counterbalanced by a lower aqueous flow. Also, in the older eyes, ocular rigidity is higher. Mean episcleral venous pressure is the same for the two groups. The major effect of age seen in this study is alteration of the function of the outflow pathways of the eye, with simultaneous, partially counter-balancing, decrease of aqueous production associated with decreased pseudofacility.     

Shift in Staphylococcus aureus clone linked to an infected tattoo

A retrospective investigation of skin and soft tissue infections caused by community-associated methicillin-resistant Staphylococcus aureus (MRSA) strains among inmates in a Wisconsin correctional facility suggested a shift in MRSA genotype. Case timeline indicated a displacement of USA400 clone by USA300 clone. The USA300 index case was associated with an infected new tattoo.     

Imbalances in the health labour force: an assessment using data from three national health facility surveys

Accurate knowledge of the characteristics of the health labour force that can affect health care production is of critical importance to health planners and policymakers. This study uses health facility survey data to examine characteristics of the primary health care labour force in Nicaragua, Tanzania and Bangladesh. The characteristics examined are those that are likely to affect service provision, including urban/rural distribution, demographic characteristics, and experience and in-service training, for three types of providers (physicians, nurses and auxiliary nurses). The profiles suggest a pattern of urban/rural imbalances in Nicaragua and Tanzania. The Bangladesh facility survey did not include hospitals, thereby making concrete conclusions on the supply and distribution of providers difficult to make. Multivariate logistic regressions are used to assess the relationship between the urban/rural placement of providers by health need, population demand and facility characteristics. Health need, as measured by child mortality rates, does not have a significant association with the placement of providers in either country, unlike population size and annual growth rates. The mean number of years providers have worked at a facility is significantly associated with a decreased likelihood of rural placement for the three types of providers in Nicaragua. The mean age and percentage of female providers at each facility has a negative association with the placement of rural providers in Tanzania. The use of health facility data to profile the health care labour force is also discussed.     

Medical education in Thailand: an alternate perspective.

This research is an attempt to provide greater understanding of two previously described medical education programmes in Thailand by placing them in historical perspective. One is a PhD programme to train medical school teachers and the other is a community health programme for medical students. The underying assumptions of the programmes are specified and through the use of archival material it is shown that in some respects the programmes are quite similar to earlier efforts to create western medical education programmes in Thailand. The analysis focuses on four major concerns of the programmes: creating small numbers of less well trained personnel; distributing medical resources to unserved rural areas; dealing with the special health needs of Thailand in the curricula; and self-consciously creating a professional elite. The discussion points up the need for historical data in evaluating the efficacy of medical education programmes.     

县级血吸虫病防治机构诊断实验室现状

目的 了解我国县级血吸虫病防治机构血吸虫病诊断实验室建设及诊断能力现状,为国家和省级有关部门制订卫生(血防)政策、优化卫生资源配置提供依据.方法 随机抽取40个国家级血吸虫病监测点所在的县级血防专业机构实验室,通过问卷调查等方式调查实验室人员、用房面积、仪器设备配置情况及常用血吸虫病诊断方法等信息;抽取各监测点10%的...     

聚散灵敏度与融像性聚散的相关性研究

目的 探讨聚散灵敏度与融像性聚散的相关性,为临床聚散系统异常的诊断提供更直接、更有意义的指标.方法 临床病例自身对照研究.对2012年10～12月在天津医科大学眼科中心志愿随机抽取50名20～28周岁在校近视大学生,应用电脑验光仪和综合验光仪行规范验光后,在屈光不正全矫的基础上分别进行聚散灵敏度检测和融像性聚散检测,并利用Flashed Von Graefe法测量视近隐斜,利用SPSS 13.0统计软件对相关数据进行分析,确定聚散灵敏度与融像性聚散的相关性.结果 (1)视近隐斜偏高组(＞6EXO)和视近隐斜正常组(0-6EXO)的聚散灵敏度差异显著有统计学意义(P＜0.05),而融合性聚散(BI)恢复点数值差异无统计学意义(P＞0.05).(2) BI模糊点和破裂点与聚散灵敏度无相关性,而其恢复点与聚散灵敏度有相关性.结论 可以通过被检者的恢复点数值推测患者的聚散灵敏度是否异常,可使聚散检测中恢复点数据得到充分的使用,从而减少了专项的聚散灵敏度检查,使双眼视异常的诊断更为简便.     

Factors Associated with Public Injecting Among Users of Vancouver's Supervised Injection Facility

Background: We evaluated factors associated with public drug injection among a cohort of injection drug users (SEOSI) originally recruited from within Vancouver's supervised injecting facility (SIF). Methods: We used univariate statistics and logistic regression to examine factors associated with public drug injection among SEOSI participants. Findings: Between June 2004 and July 2005, 714 IDU were followed up as part of SEOSI. In multivariate analyses, factors associated with public drug injection included homelessness (adjusted odds ratio (aOR) = 3.10; p < .001), syringe lending (aOR = 5.39; p < .001), requiring help injecting (aOR = 1.60; p = .05), and reporting that wait times affected frequency of SIF use (aOR = 3.26; p < .001). Interpretation: Persistent public injection was independently associated with elevated HIV risk behaviors, as well as programmatic factors that limit SIF use. SIF program expansion may further help to reduce persistent risk behaviors and the community concerns related to public injection drug use.