Universal design and accessibility: an approach of the influence of muscle strength loss in the risk of falls in the elderly

This study was conducted with older adults living in a long-stay institution in the city of Foz do Iguacu, Parana, Brazil with the objective of assessing the influence of muscle strength loss in the risk of falls. The sample consisted of 65 elderly who walk without the aid of support for locomotion, 37 women and 28 men, aged between 67 and 80 years. The risk of falls was assessed through the TUG test. To determine the handgrip strength, a hand dynamometer model Jamar ( was used, which provides the result in kg / force (kgf), being held only with the dominant hand. The results showed that in the last 12 months, only 32% of the elderly surveyed had no fall and the average handgrip strength was 24.32 ( 11.22 kgf; 40% had one fall and the average handgrip strength was 23.82 ( 10.18 kgf; 8% had two falls and the average handgrip strength was 19.48 ( 8.21 kgf and 20% had more than one fall and the average handgrip strength of 18.13 ( 7.33 Kgf., indicating that the force levels are statistically lower among elderly at high risk of falls (p> 0.05). It was concluded that the lower the force level, the greater the likelihood of falls. Thus, it is important to stress that due to the loss of muscle strength, all ergonomic hazards and architectural barriers must be removed so that older adults can perform their tasks more easily, with comfort and safety.     

普通碳钢的一种 PVD 镀膜及其耐蚀性研究

为了提高水力喷射压裂中喷嘴的耐蚀耐磨性, 使用普通碳钢进行 PVD 镀膜, 研究了 3 种镀膜试样的表面物理性能和脉冲负偏压的影响, 采用失重法、 电化学法和 XRD 等测试了 PVD 镀膜的耐蚀性。结果表明： 脉冲负偏压在–400∼–700 V, 镀层的沉积速率和显微硬度随负偏压的增大而降低, 膜基结合力先增加后减小; 在高流速下, 3 种试样均表现出良好的耐磨蚀性, 模拟地层水流速为 6 m/s 时, 碳钢的磨蚀速率是镀膜试样的 4 倍; 单因素条件下, 3 种镀膜的腐蚀速率随 Cl−浓度增加先增加后减小, 随 pH 值增加而减小; 3 种镀膜中 AlCrN （厚） 镀膜的耐蚀性最佳, 这与镀膜的致密性和牺牲阳极保护作用有关。     

头驼a：流浪者窝藏所

我的房子在一个绿树环绕的小山坡上，这栋居民楼与包围着它的树、和居住与其中的多数人一样，都颇有些年纪了。但是也像它的老住户们那样。老得不失体面。楼道总是打扫得很干净，绿色的瓷砖透着凉爽的锃亮。我的房子不大，但是足够了，有客厅有卧室有书房，都是我喜欢的模样。因为是顶楼，夏天会有些热，但视野也因此而宽阔。客厅有朝南的窗子；冬天阳光好的时候，我就躺在窗角的绿沙发上，以一个自闭症患者的方式享受季节的美好。     

指进现象模拟研究的回顾与展望

指进现象广泛存在于油气开采的各种驱替过程中，其关键是水动力学的不稳定性，直接研究的难度大，常采用间接模拟的方法进行研究。回顾了油气开采及相关领域指进现象物理模拟和数学模拟的研究现状；重点介绍了元胞自动机及光滑质点流体动力学方法在指进数值模拟中的应用情况，并针对指进模拟研究中存在的不足，从物理模型性能改进、数学模型的无网格求解、复杂指进现象的元胞自动机模拟三个方面论述了指进现象模拟研究的发展趋势。     

提高粉煤灰低密度水泥体系早期强度的研究

针对粉煤灰低密度混合材水泥的早强问题展开研究,用实验方法分析探讨了粉煤灰低密度混合材水泥在水化反应过程中的作用机理,开发出了一种高效的能够适用于低温低密度体系的早强剂DY,使得粉煤灰低密度水泥早期强度得到显著的提高。粉煤灰混合材低密度水泥在低温下早期强度的提高,主要通过水泥与粉煤灰之间的相互作用来实现。正反两方面的实验结果表明,水化反应使早期释放更多的Ca²⁺和OH^-,引发了粉煤灰的火山灰反应,从而促进了粉煤灰混合材水泥早期强度的发展。该产品有望在低压井、易漏井、长封固段井等复杂条件下使用。粉煤灰混合材水泥能够满足复杂井固井作业的要求,并且具有可观的经济、环保效益。     

求职自我效能、目标清晰度与资源动员行为的关系研究

基于北京地区12所全日制普通高校的实证调研,收集963名大学毕业生有效样本,运用分层逐步回归分析法,从资源使用视角探讨大学毕业生求职行为的动员机制。研究发现:求职自我效能与求职目标清晰度指标对求职资源动员行为均有显著影响。但是,两者的动员路径存在显著差异,求职自我效能高的毕业生更倾向于增加动员人际交往类求职资源行为;而求职目标清晰度高的毕业生,则采用就业目标导向、有选择地动员求职资源策略。     

Psychological Treatment of Slot-Machine Pathological Gambling: New Perspectives

In this paper the most relevant findings of our research team on pathological gambling in the last decade are presented. There is no conclusive empirical evidence of a specific profile of the pathological gamblers. The choice treatment appears to be stimulus control and in vivo exposure with response prevention, followed by a cognitive-behavioral intervention in relapse prevention. Predictive variables for the therapeutic failure were the dissatisfaction with the treatment, the alcohol abuse and the neuroticism as a personality variable. Unanswered questions for future research in this field are commented upon.     

新时代高校招生就业工作的实践路径探析以——西南石油大学为例

党的十九大为党和国家各项事业发展提供了理论指南和行动纲领,也为高校招生就业创新发展提供了新的理论指导。在高校招生就业工作中贯彻落实党的十九大精神,需要明晰历史变革、理论创新、事业发展三个维度下高校招生就业条件的变化,以进一步明确新时代高校招生就业的历史方位;需要厘清高校招生就业反映出来的根本问题、重点问题、主要问题、基本问题,不断认清新时代高校招生就业面临的时代问题。在新时代背景下,坚持以习近平新时代中国特色社会主义思想为指导,融合高校思想政治教育发展,丰富多学科视角下的理论体系,推动新理念新技术应用,激活工作端口的延伸性,提升打造工作队伍,是当前高校招生就业改革和发展的重要路径。     

A brief essay on ergonomics in graphic design

Through Brazilian publication revision on the relations amongst Ergonomics and Design, we observed the tendency towards an approach focusing on product design. However, it is our duty to question which would be the influences of ergonomics in the graphic design. As a methodology, we considered the identification that the practices derived from ergonomics as epistemic system found in the main bibliography related to graphic design.