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31.
协调博弈作为一类特殊的博弈,在过去几年受到广泛关注,研究主要集中在协调失败和适应性行为两方面.针对Huyck等研究个体适应性行为的局限性,将近视理论和虚拟动态理论进行扩展.基于实验调查数据,分别找出适合低均衡组和高均衡组的自适应行为模型,同时研究单个个体的适应性行为.研究发现,对于低均衡组,虚拟动态理论是预测中位数最适合的模型,近视理论是预测个体行动最适合的理论模型;对于高均衡组,虚拟动态理论在预测中位数和个体行动方面命中率都是最低的,且大部分受试者基于近视理论预测行动的命中次数最大.该研究丰富了适应性行为研究的相关理论,同时表明了个人利益和团队利益一致的重要性,慎重对待每一次选择并尽可能多参考有价值的信息,才能实现收益最大化.  相似文献   
32.
柴娜 《职业时空》2012,(6):155-156
秦皇岛市生活垃圾焚烧发电项目以生活垃圾焚烧余热发电为建设内容,生产的电能作为替代现有电网供电的可再生能源,从而可减少温室气体排放。文章分析在该项目中应用CDM(清洁发展机制)的可行性和考虑因素,介绍了根据CDM原则对项目减排量进行估算的方法,认为城市生活垃圾焚烧发电技术可成为进行CDM合作项目的优先技术领域。  相似文献   
33.
在学校变革的UAS模式中,研究者的作用发挥是一个重要的议题。基于我们合作项目启动一年的历程,探索了从"融入"到"扰动"的研究者介入学校变革的初始路径,并指出做好角色定位和行动策略的选取,是完成这一过程转化的重要方面。"融入"是研究者最初的角色目标。"扰动"是研究者"融入"后的行动指向。从"融入"到"扰动"的过程,是研究者介入学校变革,启动并维系变革转化发生的过程。  相似文献   
34.
Objective: This study aims to investigate the effect of smoking on sexual functions in AS patients.

Patients and methods: A total of 67 male AS patients with a median age of 34 years (range: 18–57) reporting sexual activity at least for the past 4 weeks period were included. Patients were divided into smokers (Group 1, n?=?47) and non-smokers (Group 2, n?=?20). Fagerström test for nicotine dependence, smoking history, exhaled carbon monoxide test were recorded for smoking AS patients. Visual analogue scale (VAS), Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Metrology Index (BASMI), Bath Ankylosing Spondylitis Functional Index (BASFI), Ankylosing Spondylitis Quality of Life (ASQoL), International Index of Erectile Function (IIEF), Beck Depression Inventory (BDI) were filled for both groups.

Results: There was no significant difference between smokers and non-smokers in all evaluation parameters. BASMI scores were significantly lower in the mild dependency subgroup as compared to those with moderate or severe dependency (p?=?.005 and p?=?.007, respectively). Total IIEF score and IIEF categories correlated significantly with BASDAI, BASFI, BASMI, ASQoL, pain, fatigue, and cumulative smoking. BDI showed an inverse correlation with the IIEF score and IIEF category (p?r?=?–0.520, p?r?=?–0.508, respectively).

Conclusions: Sexual function in AS patients is associated with the pain, fatigue, disease activity, functional status, quality of life, depression as well as the cumulative exposure to smoking, and that sexual functions tend to decline with increasing degree of cigarette dependency.  相似文献   
35.
In this paper, we study space–time generalized additive models. We apply the penalyzed likelihood method to fit generalized additive models (GAMs) for nonseparable spatio-temporal correlated data in order to improve the estimation of the response and smooth terms of GAMs. The results show that our space–time generalized additive models estimated response and smooth terms reasonable well, and in addition, the mean squared error, mean absolute deviation and coverage intervals improved considerably compared to the classic GAM. An application on particulate matter concentration in the North-Italian region of Piemonte is also presented.  相似文献   
36.
In the wake of the Syrian civil war, more than three million people have fled to Turkey, which now hosts the largest refugee population on earth. Making up 4.42 per cent of the total population in Turkey as of February 2018, Syrian refugees are nevertheless spread unevenly within its borders. The ratio of refugees to the local population ranges from as high as 99per cent in the city of Kilis to as low as 0.05per cent in Sinop. This article presents findings from the empirical study of the effect of this geographical variation on election outcomes in Turkey, after the arrival of major refugee populations in 2012. Drawing on a unique subnational dataset and ordinary least squares (OLS), generalized least squares (GLS), and difference‐in‐differences (DiD) regressions, the study compares cities hosting few refugees (control group) with cities with large refugee populations (treatment group) to determine whether significant differences in voting patterns emerged. Our findings show a negative, but insignificant, impact on the incumbent party. The findings have policy implications for Turkey as well as any country that experiences a considerable flow of refugees.  相似文献   
37.
Public health relies on sample surveys to monitor the health of populations and investigate factors that contribute to population health and illness. Such investigations require surveying individuals who are selected in ways that support statistical inference to the population. Faced with rising costs and declining participation, survey researchers are exploring economical ways to recruit samples that validly represent larger populations. The current report describes an innovative resource, the Colorado Adult Population Sample–Survey Research Registry, which maintains survey access to respondents from a probability-based state health survey. We describe recruitment and retention strategies, explore representativeness, report several studies that used the registry, and discuss future directions.  相似文献   
38.
杨娜  施慧 《城市观察》2021,72(2):157-164
社区养老驿站服务目前正在起步阶段,可以让老年人在居住的社区驿站中得到周全的服务,既对老年人衣食住行方面给予帮助,也为其提供丰富的文娱活动充实晚年生活.乐龄游戏是专门为老年人设计的游戏,既能让老年人在游戏中欢声笑语,也能使老人在生理、心理和全脑发展方面得到相应的提升.本文探索乐龄游戏的发展现状、助力社区养老驿站服务的实践探索,并提出发展路径和具体策略,为社区养老驿站服务提供新思路.  相似文献   
39.
PCORnet, the National Patient-Centered Clinical Research Network, seeks to establish a robust national health data network for patient-centered comparative effectiveness research. This article reports the results of a PCORnet survey designed to identify the ethics and regulatory challenges anticipated in network implementation. A 12-item online survey was developed by leadership of the PCORnet Ethics and Regulatory Task Force; responses were collected from the 29 PCORnet networks. The most pressing ethics issues identified related to informed consent, patient engagement, privacy and confidentiality, and data sharing. High priority regulatory issues included IRB coordination, privacy and confidentiality, informed consent, and data sharing. Over 150 IRBs and five different approaches to managing multisite IRB review were identified within PCORnet. Further empirical and scholarly work, as well as practical and policy guidance, is essential if important initiatives that rely on comparative effectiveness research are to move forward.  相似文献   
40.
针对高职高专院校学生生源的层次差异,英语教学可采用分层教学,即根据学生个体差异,将学生分成不同水平的班组,制订不同的计划、目标和方法进行教学。分层教学能够使更多的学生在各自基础上得到最为有效、合理的发展,使各类学生的潜能都能得到最大程度的开发。分层教学实施过程中,要注意制订科学合理的分层方案,进行科学有效的管理,注重教师教育科研水平的提升。  相似文献   
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