少先队活动中提升队员科学素养的探究

少先队员是祖国的未来,培养少年儿童的科学素养至关重要。当前少先队科技教育相对薄弱,为此,少先队组织本着普及队员的科学知识,增强队员的科学意识,培养队员的科学精神为宗旨,在学校科技节活动中,通过一系列丰富多彩的队活动努力提高全校少先队员的科学素养。     

A note on stable limit theory for the OLSE with non usual rates and the heteroskedasticity robust Wald test

We are occupied with an example concerning the limit theory of the ordinary least squares estimator (OLSE) when the innovation process of the regression has the form of a martingale transform the iid part of which lies in the domain of attraction of an α-stable distribution, the scaling sequence has a potentially diverging truncated α-moment, and the regressor process has a potentially divergent truncated second moment. We obtain matrix rates that reflect the stability parameter as well as the slow variations present in the aforementioned sequences, and stable limits. We also derive asymptotic exactness, consistency, and local asymptotic unbiasedness under appropriate local alternatives for a heteroskedasticity robust Wald test based on subsampling. The results could be useful for inference on the factor loadings in an instance of the APT model.     

Knowledge work and practices of seeing: Epistemologies of the eye,gaze, and professional vision

Much practice within organizations is to some extent embodied in and centered on the visual capacities of the agent, the acting subject. Distinguishing between ‘epistemologies of the eye’, i.e. theories of how knowledge is acquired through visual practices, and ‘practices of seeing’, i.e. theories and studies of how vision and visuality are actually used in everyday working life, the paper points to the need to understand vision and visuality in organizational practice. Using the case of functional magnetic resonance imaging (fMRI), it is suggested that professional vision, i.e. practices of seeing that are shared within epistemic communities, is firstly technologically mediated and, secondly, based on the ability to combine vision, speech, gesture, and other embodied and cognitive resources in order to make sense of the images produced by fMRI technology. The paper concludes that organization theory should examine practices of seeing in greater detail and as part of the project in order to understand how knowledge is constituted and used as a collectively constituted resource within organizations.     

Safety First: Recognizing and Managing the Risks to Child Participants in Magnetic Resonance Imaging Research

Specialized and up-to-date knowledge is required to identify and manage the risks associated with advanced biomedical research. Additional complexities need to be considered when the research involves infants or young children. In this article, we focus on recent information about the physical risks of pediatric magnetic resonance imaging research and highlight information gaps. With an eye to assisting institutional review boards and researchers, we consider strategies for the management of these risks and formulate key questions aimed at exposing hidden hazards. Institutional review boards should ask these questions, and researchers should bear them in mind as they develop research protocols.     

Disclosure of Unknown Harms in Magnetic Resonance Imaging Research

Unknown harms are by their nature difficult to communicate. While magnetic resonance imaging (MRI) has known risks (e.g., metal projectiles, dislodgement of medical implants), this imaging modality also has potential unknown long-term negative health effects associated with its static magnetic fields. We carried out a research ethics board (REB) file review of previously approved MRI research studies and found that unknown risks were either left undisclosed or were inadequately disclosed to research participants and REBs. This article outlines issues raised by our REB file review and suggests steps that should be taken in order to satisfactorily communicate information about potential unknown harms of MRI.     

高校教师人际吸引力研究

人际吸引理论是社会心理学的重要理论,也是现代教育教学可以借鉴的理论。从人际吸引的各项因素入手梳理教师人际吸引力对课程教学的具体影响,研究提升教师人际吸引力的可行方法。教师人际吸引力研究对提高课程教学效果具有现实的可操作性。     

Multivariate functional response low‐rank regression with an application to brain imaging data

We propose a multivariate functional response low‐rank regression model with possible high‐dimensional functional responses and scalar covariates. By expanding the slope functions on a set of sieve bases, we reconstruct the basis coefficients as a matrix. To estimate these coefficients, we propose an efficient procedure using nuclear norm regularization. We also derive error bounds for our estimates and evaluate our method using simulations. We further apply our method to the Human Connectome Project neuroimaging data to predict cortical surface motor task‐evoked functional magnetic resonance imaging signals using various clinical covariates to illustrate the usefulness of our results.     

关于增强社会主义意识形态吸引力和凝聚力的思考

增强社会主义意识形态吸引力和凝聚力的途径有三:统筹自然科学与哲学社会科学两种科学文化,以便二者协同发展;做好中华民族固有的传承性生活文化--民间民俗文化的扬弃,让我们的社会主义意识形态"接地气";确定"和谐"、"科学"的标杆,协调现代与传统的和谐转换,提升中国本身的文化亲和力,让我们的社会主义意识形态更贴近生活、贴近民众,从而具有更强大的生命力、创造力、感召力和凝聚力.     

钙钛矿锰氧化物为基体的二相复合体低场室温高磁电阻研究

综述了国内外对钙钛矿锰氧化物为基体的二相复合体低场磁电阻研究现状,提出了钙钛矿锰氧化物低场室温高磁电阻实现的新途径。     

应加强风水文化旅游的开发研究

风水作为中国的传统文化之一,将吸引国内外游客前来体验感悟。要提升游客的旅游体验质量,必须加强对导游的培训,加深他们对中国传统文化的认知以及对风水文化的深刻理解,避免风水文化的神秘化与低俗化。本文对风水文化旅游理论研究和开发现状进行了分析,对风水文化旅游类型、旅游景区规划、风水旅游游憩方式设计等方面提出了自己的看法。