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魏屹东 《山西大学学报(哲学社会科学版)》2022,(1)
适应性是主体适应其环境的特性,是物理演化系统和生物演化系统的本质属性,反映在认知上就是适应性表征。适应性表征也因此成为知识显现的方式和创造的核心,具有协调性、匹配性、互补性、模拟性和类比性,其表现方式有直接具象表征、间接具象表征、直接抽象表征和间接抽象表征,分别对应于经验主义、建构经验主义、理性主义和科学实在论。适应性表征的实现是通过科学理论核心概念的变化、定律的凝练、理论的更替、模型推理和世界观的改变展开的,具有经验上的适当性。这种经验适当性不仅是感知层次的体验,更是一种认知模式。在认知意义上,经验也是基于心理模型的,心理建模的路径有思想语言、心理表象、心理命题、思想实验和心理模拟推理。这种基于心理建模的适应性表征为科学认知和科学发现提供了有益的方法论。 相似文献
3.
2020年暴发的新冠肺炎疫情是全球共同关注的重大突发公共卫生事件,习近平总书记指出要加强舆论引导,营造强信心、暖人心、聚民心的舆论氛围。立足国家层面,将疫情期间的新闻策略归纳为三种典型策略框架——建构大国形象(强信心)、筑建共同体文化(暖人心)、建立公正机制(聚民心),并进行实证研究。研究发现:对三大典型策略的主流新闻,人群的反应均倾向于比较积极的情绪,认可程度及信心倾向较高;国家机关和国有企业的人员、收入稳定人群、26~45岁的中青年对国家拥有更强的信心。 相似文献
4.
通过对1 154名初一至高三学生的调查,探索累积生态资源、青少年自我效能感与意向性自我调节三者之间的关系。具体来说,青少年拥有的生态资源数量正向预测意向性自我调节水平,而青少年的自我效能感中介作用于生态资源数量与意向性自我调节的关系。这表明,累积生态资源既可直接对青少年意向性自我调节产生积极影响,又可通过自我效能感对意向性自我调节产生间接作用。因此,在推进积极心理健康教育的进程中,需要凸显青少年在自身发展中的自主性以及多重生态资源的联合作用。 相似文献
5.
当前我国医院间存在严重的"信息孤岛",医院参与医疗信息共享意愿不高,患者的诊疗信息被静态碎片化储存而无法充分有效地利用。考虑到医院进行医疗信息共享将降低患者转移成本,本文构建一个多阶段双寡头动态博弈模型研究医疗信息共享对医院竞争过程中患者转移数量和服务质量水平决策的影响。首先,根据是否存在转移成本,将患者分为新患者和经验性患者,借助Hotelling模型刻画患者的效用函数,分析患者就诊决策。然后,在政府价格规制和不考虑医院利他性情景下,构建了医院累积期望收益目标函数,使用动态规划方法,求解实现医院累积期望收益最大化的服务质量水平,获得了实现患者相互转移且医院在市场中共存的马尔可夫完美均衡。最后,根据医院参与医疗信息共享后患者转移成本降为零,分析与比较信息共享前后患者转移数量和服务质量水平变化。研究发现:在不同医院间本身存在患者转移背景下,医院参与信息共享后,患者转移数量增加但存在一个上限,增加的转移量与患者在医院间的转移成本呈正相关,与初始感知效用的差值范围呈负相关;医院参与信息共享后,均衡状态下的医院服务质量水平高于信息共享前的服务质量水平。因此,在不改变当前医保支付方式下,要加快推进医疗信息共享,政府部门可以根据医院的患者数量和服务质量水平变化对其进行定期补贴,以激励医院积极参与医疗信息共享,本文给出了这个补贴的量化表达。 相似文献
6.
Elicia M. Cousins 《Sociology Compass》2021,15(5):e12879
Maternalist framing has been a consistent part of a long history of powerful, often successful organizing for environmental protection and justice. Yet today's calls on individuals to simultaneously engage in proenvironmental behavior and to protect themselves from environmental threats through consumption have mobilized maternal discourse in a way that is likely demobilizing in the long run. Indeed, the increasing individualization of the environmental movement is intersecting with persistent, unequal gendered structures of labor in a way that places the burden of environmentalism and environmental risk management on women and mothers. I argue that precautionary consumption and other forms of individualized environmental risk management add to the “third shift,” on top of the disproportionate burden of household labor and care work that women already face. This phenomenon is concerning because it has the potential to (1) limit women's engagement in other forms of environmental advocacy and leadership, and to (2) reproduce existing gender inequalities not only between men and women but also among women of different levels of race and class privilege. Thus, the increasing individualization of the environmental movement also potentially exacerbates environmental injustice at the household level. Despite such emerging concerns, the domestic scale remains an often overlooked site of environmental harm and gendered burden. 相似文献
7.
Jixian Wang 《Pharmaceutical statistics》2021,20(1):15-24
Propensity score matching (PSM) has been widely used to reduce confounding biases in observational studies. Its properties for statistical inference have also been investigated and well documented. However, some recent publications showed concern of using PSM, especially on increasing postmatching covariate imbalance, leading to discussion on whether PSM should be used or not. We review empirical and theoretical evidence for and against its use in practice and revisit the property of equal percent bias reduction and adapt it to more practical situations, showing that PSM has some additional desirable properties. With a small simulation, we explore the impact of caliper width on biases due to mismatching in matched samples and due to the difference between matched and target populations and show some issue of PSM may be due to inadequate caliper selection. In summary, we argue that the right question should be when and how to use PSM rather than to use or not to use it and give suggestions accordingly. 相似文献
8.
Bridget M. Nugent Rajanikanth Madabushi Barbara Buch Vasum Peiris Victor Crentsil Virginia M. Miller Jonca Bull Marjorie R. Jenkins 《Pharmaceutical statistics》2021,20(5):929-938
Differences in patient characteristics, including age, sex, and race influence the safety and effectiveness of drugs, biologic products, and medical devices. Here we provide a summary of the topics discussed during the opening panel at the 2018 Johns Hopkins Center for Excellence in Regulatory Science and Innovation symposium on Assessing and Communicating Heterogeneity of Treatment Effects for Patient Subpopulations: Challenges and Opportunities. The goal of this session was to provide a brief overview of FDA-regulated therapeutics, including drugs, biologics and medical devices, and some of the major sources of heterogeneity of treatment effects (HTE) related to patient demographics, such as age, sex and race. The panel discussed the US Food and Drug Administration's role in reviewing and regulating drugs, devices, and biologic products and the challenges associated with ensuring that diverse patient populations benefit from these therapeutics. Ultimately, ensuring diverse demographic inclusion in clinical trials, and designing basic and clinical research studies to account for the intended patient population's age, sex, race, and genetic factors among other characteristics, will lead to better, safer therapies for diverse patient populations. 相似文献
9.
为应对2020年肺炎紧急状态的蔓延,全国各个城市采取了一系列采集与登记公民个人信息的防控措施,以维护城市安全、社会稳定和公民健康。而这些防控措施背后存在着信息滥用的隐忧,如何平衡紧急状态与个人信息保护,社会上存在讨论和争议。有鉴于此,该文拟以健康码的应用为契点,结合我国《民法典》中新增个人信息保护的相关规定,分析提炼紧急状态下个人信息保护的特征和重点问题,提出完善我国紧急状态下个人信息保护制度的初步设想。 相似文献
10.
Simon Smith 《Journal for the theory of social behaviour》2021,51(1):145-163
This paper uses subject positioning theory to explore how conflicts between autonomy and protection are managed in the justification of controversial care arrangements for patients with mental/neurological illness. Its basic argument is twofold: firstly, to justify or propose care arrangements at strategic or contentious moments, actors position illness as an actant and make it present in talk‐in‐interaction, exploiting alignments and misalignments between the there and then of reported events and the above and beyond of shared societal discourses to say what matters and what's to be done here and now; secondly, the introduction of authoritative voices from elsewhere involves imbricating narrative and routine sequences in order to prioritise different subjectivities. Dilemmas opposing autonomy and protection may seem less intractable if we adopt a corresponding perspective interplay between narrative and routine situational readings. 相似文献