Pornography use and sexism among heterosexual men     

Dan J. Miller  Garry Kidd  Peter T. F. Raggatt  Kerry Anne McBain  Wendy Li 《Communication Research Reports》2020,37(3):110-121

ABSTRACT

The idea that pornography promotes sexism is a commonly purported one. This study employed an online sample of heterosexual men (N = 323) to investigate the relationship between pornography use (in terms of both overall level of pornography use and use of violent and/or humiliating pornography) and old-fashioned and modern sexism. The moderating effects of agreeableness and perceived realism of pornography were also assessed. Level of general pornography use and use of violent and/or humiliating pornography was not predictive of either sexism measure. Agreeableness was negatively predictive of both sexism measures, whereas perceived realism was positively predictive of sexism. Agreeableness and perceived realism did not moderate the relationship between level of pornography use and any of the outcome measures.  相似文献   

Front and Center: The Place for Western Classical Music in the Curriculum     

Dan Asia 《Academic Questions》2018,31(4):424-431

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Altmetrics的形成与演进:理论假说、发展阶段及学科关系     

张洋  庞进京  母丹 《图书情报工作》2021,64(23):141-150

[目的/意义] Altmetrics诞生十周年之际，对其前期发展情况进行总结，有助于推动其往积极方向发展。[方法/过程] 利用文献计量方法进行量化研究以展现Altmetrics领域的总体研究和发展情况；从术语变迁、定义等方面揭示其内涵；提出三种理论假说寻求Altmetrics存在合理性的理论支撑；划分不同阶段梳理其发展程度；分析它与其他学科的关系以明确学科属性及价值。[结果/结论] Altmetrics为计量学提供了一种新思维、新方法；开放科学假说、数字学术假说和学术传承假说符合新环境Altmetrics发展的新特点，有效支撑了Altmetrics的存在与发展；Altmetrics发展迅速，但现阶段处于发展初期，且国内外发展程度存在差异；在辨析与其密切相关学科之间关系的基础上，认为需推动Altmetrics自身学科纵深发展以及加强跨学科的合作研究。  相似文献   

Educator‐Reported Instructional Characteristics of Grade 1 Reading Interventions within a CBM Assessment System     

Joseph F. T. Nese  Dan Farley  Daniel Anderson 《Learning disabilities research & practice》2019,34(2):97-109

We used data from the 2014–2015 easyCBM assessment system to explore the applied reading intervention characteristics in a sample of 3,074 Grade 1 students (and 5,145 interventions) in school districts applying a multitiered systems of support (MTSS) framework. We describe the number of interventions, number of assessments, the intervention start dates, curricula, instructional strategies, tier, group size, frequency, dosage, total time, and quantitative intensity. We found variance across all instructional variables, with 156 curricula and 59 instructional strategies applied. Based on our data, a “typical” intervention was a Tier 2 intervention that began before October, was delivered for 30 minutes/day for 5 days/week in a group with three to five students, was changed once if at all, and student progress was most likely monitored with word reading fluency measures.  相似文献   

High-resolution mapping of brain vasculature and its impairment in the hippocampus of Alzheimer's disease mice     

Xiaochuan Zhang  Xianzhen Yin  Jingjing Zhang  Anan Li  Hui Gong  Qingming Luo  Haiyan Zhang  Zhaobing Gao  Hualiang Jiang 《国家科学评论(英文版)》2019,6(6):1223

Accumulating evidence indicates the critical importance of cerebrovascular dysfunction in the pathogenesis of Alzheimer''s disease (AD). However, systematic comparative studies on the precise brain vasculature of wild-type and AD model mice are still rare. Using an image-optimization method for analysing Micro-Optical Sectioning Tomography (MOST) data, we generated cross-scale whole-brain 3D atlases that cover the entire vascular system from large vessels down to smallest capillaries at submicron resolution, for both wild-type mice and a transgenic (APP/PS1) mouse model of AD. In addition to distinct vascular patterns in different brain regions, we found that the main vessels of the molecular layer of the hippocampal dentate gyrus (DG-ml) undergo abrupt changes in both diameter and branch angle, spreading a unique comb-like pattern of capillaries. By using a quantitative analysis workflow, we identified in the hippocampus of AD mice an overall reduction of the mean vascular diameter, volume fraction and branch angle, with most significant impairment in the DG-ml. In addition, virtual endoscopy revealed irregular morphological features in the vessel lumen of the AD mice, potentially contributing to the impairment of blood flow. Our results demonstrate the capability of high-resolution cross-scale evaluation of brain vasculature and underscore the importance of studying hippocampal microcirculation for understanding AD pathogenesis.  相似文献   

Understanding the topic evolution of scientific literatures like an evolving city: Using Google Word2Vec model and spatial autocorrelation analysis     

Kai Hu  Qing Luo  Kunlun Qi  Siluo Yang  Jin Mao  Xiaokang Fu  Jie Zheng  Huayi Wu  Ya Guo  Qibing Zhu 《Information processing & management》2019,56(4):1185-1203

Topic evolution has been described by many approaches from a macro level to a detail level, by extracting topic dynamics from text in literature and other media types. However, why the evolution happens is less studied. In this paper, we focus on whether and how the keyword semantics can invoke or affect the topic evolution. We assume that the semantic relatedness among the keywords can affect topic popularity during literature surveying and citing process, thus invoking evolution. However, the assumption is needed to be confirmed in an approach that fully considers the semantic interactions among topics. Traditional topic evolution analyses in scientometric domains cannot provide such support because of using limited semantic meanings. To address this problem, we apply the Google Word2Vec, a deep learning language model, to enhance the keywords with more complete semantic information. We further develop the semantic space as an urban geographic space. We analyze the topic evolution geographically using the measures of spatial autocorrelation, as if keywords are the changing lands in an evolving city. The keyword citations (keyword citation counts one when the paper containing this keyword obtains a citation) are used as an indicator of keyword popularity. Using the bibliographical datasets of the geographical natural hazard field, experimental results demonstrate that in some local areas, the popularity of keywords is affecting that of the surrounding keywords. However, there are no significant impacts on the evolution of all keywords. The spatial autocorrelation analysis identifies the interaction patterns (including High-High leading, High-Low suppressing) among the keywords in local areas. This approach can be regarded as an analyzing framework borrowed from geospatial modeling. Moreover, the prediction results in local areas are demonstrated to be more accurate if considering the spatial autocorrelations.  相似文献   

A lesson in resilience: The abrupt digital transformation of society conferences in 2020     

Violaine Iglesias  Steven Rathgeb Smith  Dan Gibson 《Learned Publishing》2021,34(1):35-42

• The pandemic can be seen as an opportunity to revisit the justification for conferences and how they should be run to avoid elitism, climate impact, and diversity.
• 2020 saw a wealth of different approaches to events, including financing, technologies, scheduling, and the meaning of the term ‘live’.
• Engaging attendees and providing networking opportunities are considered the main obstacle to virtual events, but can social networking lessons help resolve – or even improve – this?
• It may take some time for online event programming to achieve the right balance of flexibility versus ‘buzz’ to meet a conference's key objectives: knowledge sharing and peer interaction.
• Live broadcasting is on the rise, but the on‐demand video model is gaining popularity as it ensures high‐quality presentation recordings and consistency of experience.
• Over time, technical challenges of online meetings will resolve, with competition leading to more reasonable pricing, customers becoming savvier, and vendors learning from experience.

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Understanding the relative contribution of technical and tactical performance to match outcome in Australian Football     

Christopher M Young  Wei Luo  Paul B Gastin  Daniel B Dwyer 《Journal of sports sciences》2020,38(6):676-681

ABSTRACT

The aim of this study was to assess if tactical and technical performance indicators (PIs) could be used in combination to model match outcomes in Australian Football (AF). A database of 101 technical PIs and 14 tactical PIs from every match in the 2009–2016 Australian Football League (AFL) seasons was merged. Two outcome measures Win-loss and Score margin were used as dependent variables. The top 45 ranked technical and tactical PIs from a feature selection process were used to model match outcome using decision tree and Generalised Linear Models (GLMs). Of the top 45 selected features, this included seven tactical PIs. The Win-loss-based Decision tree model achieved a classification accuracy of 89.0% and GLM 93.2%. A Score margin-based GLM achieved a root mean squared error (RMSE) of 6.9 points. A combined approach to the classification of match outcomes provided no improvement in model accuracy compared with previous literature. However, this study has established the relative importance of technical and tactical measures of performance in relation to successful team performance in AF.  相似文献   

谈博客（Blog）资源的信息组织   总被引：1，自引：0，他引：1  

吴昌合  叶丹 《大学图书情报学刊》2008,26(4):49-52

Blog从产生开始,就给整个互联网世界的交流方式带来了一场新的革命,它作为一种新的网络信息组织方式,是一个十分值得研究的课题。文章探讨了Blog资源的三种信息组织方式,并分析了传统的分类法与主题法在Blog资源组织中的应用。  相似文献   

印刷企业管理与ERPP选型     

伊洛 《出版与印刷》2008,(2)

伴随着全球物价的上涨,工业品材料价格节节攀升,人力成本的不断上扬,国内印刷企业的利润空间受到挤压,"向管理要效益、向过程要效率"的经营理念已成为印刷行业的竞争法宝.印刷企业纷纷开始借助信息化管理手段,把精细化管理思想通过软件载体固化下来,并彻底运用到各个部门中去,从而规范企业业务流程,掌控运营的各个环节,最终达到降低成本、向过程要效率的目标.  相似文献