Driver performance due to small unmanned aerial system applications in the vicinity of roadways

Small unmanned aerial systems (sUAS), or drones, have become increasingly utilized for a myriad of applications in the vicinity of roadways and can offer a low-cost alternative to many labor-intensive data collection techniques, including infrastructure inspection, roadway marking data collection, and more. To collect much of this data with a desired degree of accuracy, sUAS must be flown near moving vehicles, pedestrians, and/or bicyclists. However, sUAS, and their operators, have the potential to be a distraction to drivers. Through a full-immersion driver simulator study and post-experiment questionnaire, this study furthered the current state-of-the-literature and investigated the potential for sUAS to be flown in the vicinity of roadways in the future as well as potential safety implications of those circumstances. Specifically, driver performance due to drone height and the presence of drone operators was evaluated. The results of the driving simulation study revealed that participants were more visually distracted in situations where the operators and drone were both present compared to the drone only scenarios. Furthermore, in 11% of all analyzed situations, drivers were critically visually-distracted as shown by a continuous glance of two seconds or more at the drone or operators. The post-experiment questionnaire revealed that approximately 30% of participants had seen a drone in flight near a roadway prior to this study. Ultimately, this research provides recommendations to policymakers for creating regulations on the use of sUAS in the vicinity of roadways.     

Methodological Considerations in the Neuropsychological Study of Central Nervous System Underarousal with a Specific Emphasis on Coma

Several obstacles exist that impede the scientific study of pathological underarousal (stupor and coma). For instance, there is a lack of a clear, rational, standardized taxonomy with which to describe the phenomenon. Moreover, there is considerable confusion of the construct of arousal with other neurobehavioral constructs. The field also suffers from a general lack of acceptably reliable and valid instruments, especially measures of long-term outcome. Additionally, current treatments for chronic pathological underarousal are frequently presumptive and applied haphazardly, and thus do little to elucidate the process of recovery. It is suggested that biomedical and neuropsychological approaches to the study and treatment of pathological underarousal are complementary and that it is useful to view pathological underarousal as a behavioral, as well as a medical, phenomenon.     

Individual Differences in Spatial Memory and Striatal ChAT Activity among Young and Aged Rats

Individual differences in spatial memory among young and aged rats were assessed using memory tasks related to integrity of the hippocampus and the neostriatum. Relationships were then examined between measures of spatial memory and regional choline acetyltransferase (ChAT) activity, a marker for cholinergic integrity. Twenty-four-month-old Long-Evans rats were impaired in comparisons with 6-month-old rats on measures of place learning, working memory, reference memory, and perseveration in water-maze tasks. Aged rats that were impaired on one measure of memory, however, were not necessarily impaired on other measures. ChAT activity in the ventromedial and dorsolateral neostriatum of aged rats was significantly reduced in comparisons with young rats whereas no difference was found in the hippocampus. Aged rats with the most ChAT activity in the anterior ventromedial neostriatum performed best on the place-learning and reference memory tasks but also made the most perseverative errors on the working memory task. In addition, young and aged rats with the most ChAT activity in the anterior dorsolateral neostriatum were those with the least accurate working memory. No relationships were found between ChAT activity in the hippocampus and spatial memory. Thus age-related memory impairment has components that can be segregated by measuring relationships between cholinergic integrity in subregions of the anterior neostriatum and memory tasks with different strategic requirements.     

Assessment and treatment of problem behavior maintained by mand compliance

We modified functional analysis procedures to include a condition in which we reinforced problem behavior by complying with a child's mands. After identifying compliance with mands as a reinforcer, we evaluated the efficacy of a token system with a response‐cost contingency and incorporated discriminative stimuli to signal when mands would be reinforced. The token system with response cost effectively reduced problem behavior. Similar procedures may be beneficial when continuous adult compliance is not possible, when adults want to control when they will comply with the child's mands, or to build a child's tolerance for adult‐directed situations.     

Modern health worries – the dark side of spirituality?

Modern health worries (MHWs) are widespread in modern societies. MHWs were connected to both negative and positive psychological characteristics in previous studies. The study aimed to investigate the relationships among intuitive‐experiential information processing style, spirituality, MHWs, and psychological well‐being. Members of the Hungarian Skeptic Society (N = 128), individuals committed to astrology (N = 601), and people from a non‐representative community sample (N = 554) completed questionnaires assessing intuitive‐experiential information processing style, spirituality, modern health worries (MHWs), and psychological well‐being. Astrologers showed higher levels of spirituality, intuitive‐experiential thinking, and modern health worries than individuals from the community sample; and skeptics scored even lower than the latter group with respect to all three constructs. Within the community sample, medium level connections between measures of spirituality and the experiential thinking style, and weak to medium level correlations between spirituality and MHWs were found. The connection between MHWs and experiential thinking style was completely mediated by spirituality. Individuals with higher levels of spirituality are particularly vulnerable to overgeneralized messages on health related risks. Official communication of potential risks based on rational scientific reasoning is not appropriate to persuade them as it has no impact on the intuitive‐experiential system.     

Using Community Partnerships to Better Understand the Barriers to Using an Evidence‐Based,Parent‐Mediated Intervention for Autism Spectrum Disorder in a Medicaid System

Service use disparities have been noted to impede under‐resourced families' ability to access high‐quality services for their child with autism spectrum disorder (ASD). These disparities are particularly relevant for parent‐mediated interventions and may suggest a lack of fit between these interventions and the needs of under‐resourced community settings. This study used Roger's Diffusion of Innovations theory to guide community partnerships aimed at understanding the perceived compatibility, complexity, and relative advantage of using an evidence‐based, parent‐mediated intervention (Project ImPACT) within a Medicaid system. Three focus groups were conducted with 16 Medicaid‐eligible parents, and three focus groups were conducted with 16 ASD providers operating within a Medicaid system. Across all groups, parents and providers reported general interest in using Project ImPACT. However, primary themes emerged regarding the need to (a) reduce the complexity of written materials; (b) allow for a more flexible program delivery; (c) ensure a strong parent–therapist alliance; (d) involve the extended family; and (e) help families practice the intervention within their preexisting routines. Results are discussed as they relate to the design and fit of evidence‐based, parent‐mediated interventions for under‐resourced community settings.     

Intra- and inter-subject variation in lower limb coordination during countermovement jumps in children and adults

The purpose of the present study was to investigate the coordination pattern and coordination variability (intra-subject and inter-subject) in children and adults during vertical countermovement jumps. Ten children (mean age: 11.5 ± 1.8 years) and ten adults (mean age: 26.1 ± 4.9 years) participated in the experiment. Lower body 3D-kinematics and kinetics from both legs were obtained during 9 vertical jumps of each subject. Coordination pattern and coordination variability of intra-limb and inter-limb coupling were established by modified vector coding and continuous relative phase. The adult group jumped higher and with less performance variability compared to the children. Group differences were mainly observed in the right–left foot coupling. The intra-subject coordination variability was higher in coupling of proximal segments in children compared to adults. No group differences were observed in inter-subject variability. Based on these results, it was concluded that the same movement solutions were available to both age groups, but the children were less able to consistently utilize the individually chosen coordination pattern. Thus, this ability appears to be developed through normal ontogenesis.     

道不同不相为谋? 信息相关断裂带对团队学习的影响

传统观点认为,存在断裂带的团队中成员学习行为会受到不利影响,即"道不同不相为谋"。本研究通过聚焦信息相关断裂带,全面剖析内部学习和外部学习等不同团队学习方式,深入考察影响断裂带团队学习的关键情境因素,探讨并论证本文的基本观点——"道不同",可以"相为谋"。基于56个实际工作团队配对样本数据的统计分析结果表明,信息相关断裂带对团队内部学习和外部学习都没有直接作用。团队共同任期和交互记忆系统对信息相关断裂带团队内外部学习起调节作用:团队共同任期越长,信息相关断裂带越有利于团队内部学习及外部学习;交互记忆系统水平越高,信息相关断裂带越有利于团队内部学习及外部学习。     

低阶层者的系统合理化水平更高吗?——基于社会认知视角的考察

系统合理化理论曾提出,低阶层者比高阶层者具有更高的系统合理化水平,即更认可社会体系的合理性、更支持当前社会系统。但这一论断一直存在争议。研究引入社会认知视角,考察低阶层与高阶层者系统合理化水平的差异及其机制。两个分研究得到了共同的结果:(1)低阶层者的系统合理化水平显著低于高阶层者;(2)这一差异是通过贫富归因的中介作用实现的,低阶层者系统合理化水平较低是基于其更少地认为社会贫富差距是由个人内部因素所致;(3)这一中介作用会受到个体控制感水平的调节,当控制感较低时,上述中介作用成立;但当控制感较高时,低阶层会弥合与高阶层贫富归因的差异,中介模型不成立。这些结果支持并发展了系统合理化的认知途径解释和阶层社会认知理论这两个立足于社会认知的理论观点,显示了认知因素在此问题中的重要作用,构建了更整合的阶层—归因—合理化的逻辑,并考虑了其边界因素,对于了解低阶层者的社会心态及其形成机制,包括如何改变此状况,均有一定的现实启示意义。     

区域卫生规划与卫生资源配置

区域卫生规划与卫生资源配置的关系密不可分,同时也是解决医疗保健供需平衡的重大举措和主要手段。首先提出了区域卫生规划的现实意义和基本理论,并分析了建立区域卫生规划对解决以上问题怎样产生积极的影响。