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201.
Junko Kawahara Shigeho Tanaka Chiaki Tanaka Yasunobu Aoki Junzo Yonemoto 《Risk analysis》2012,32(9):1595-1604
Lack of data on daily inhalation rate and activity of children has been an issue in health risk assessment of air pollutants. This study aimed to obtain the daily inhalation rate and intensity and frequency of physical activity in relation to the environment in Japanese preschool children. Children aged four–six years (n= 138) in the suburbs of Tokyo participated in this study, which involved three days' continuous monitoring of physical activity using a tri‐axial accelerometer and parent's completion of a time/location diary during daily life. The estimated three‐day mean daily inhalation rate (body temperature, pressure, saturated with water vapor) was 9.9 ± 1.6 m3/day (0.52 ± 0.09 m3/kg/day). The current daily inhalation rate value of 0.580 m3/kg/day proposed for use in health risk assessment in Japan is confirmed to be valid to calculate central value of inhaled dose of air pollutants in five‐ to six‐year‐old children. However, the 95th percentile daily inhalation rate of 0.83 m3/kg/day based on measurement for five‐year‐old children is recommended to be used to provide an upper bound estimate of exposure that ensure the protection of all five‐ to six‐year‐old children from the health risk of air pollutants. Children spent the majority of their time in sedentary and light level of physical activity (LPA) when indoors, while 85% of their time when outdoors was spent in LPA and moderate‐to‐vigorous physical activity. The results suggest the need to consider variability of minute respiratory ventilation rate according to the environment for more refined short‐term health risk assessment. 相似文献
202.
《Journal of Statistical Computation and Simulation》2012,82(1-2):81-88
This article reports results of an extensive simulation study which investigated the performances of some commonly used methods of estimating error rates in discriminant analysis. Earlier research papers limited their comparisons of these methods to independent training data. This study allows for a simple auto-regressive dependence among the training data. The results suggest that the estimation methods based on the normal distribution perform adequately well under conditions of negative or mild positive correlation in the data, and small dimensions (p) of the observation vectors. For large p or strong positive correlation structures the conclusion is that one of the better non-parametric methods should be used. Special circumstances and conditions which notably affect the relative performances of the methods are identified. 相似文献
203.
吴云勇 《吉首大学学报(社会科学版)》2019,40(6):51-57
新中国成立70年来,我国研究生培养政策经历了初创起步、推进发展、稳步延伸和调适深化四个发展阶段。在演进逻辑上,凸显出国家需求与市场诉求的权衡性、培养目标注重个人成就与社会发展价值的双维导向、培养质量保障体系趋向质量和效益二维共进等特征。研究生培养政策是个动态发展系统。随着时代的发展和变迁,应在政策制定和发展的动力机制、政策目标的价值导向、政策执行的监督评价及保障决策等方面作出适时调整。 相似文献
204.
This article explores Myanmar teachers’ and community stakeholders’ constructions of disability. We examine how various religious perspectives – particularly Buddhism – inform and shape understandings of impairment and how these beliefs intersect with a strongly medicalised construction of disability. However, in our discussion and exploration of the responses, we also found that the notion of two primary disability ‘models’ – namely the medical model and the social model – lack nuance, complexity, and socio-cultural consideration. Through examining teachers’ and community members’ perspectives of disability in Myanmar, we highlight the importance of socio-cultural variance in understanding local constructions of disability. 相似文献
205.
Sunyoung Park Soo Jeoung Han Seog Joo Hwang Chan Kyun Park 《Human Resource Development International》2019,22(1):91-100
The purpose of this study was to examine the overall impact of four leadership styles (charismatic, directive, participative, and supportive) in four Confucian Asian countries, China, Japan, South Korea, and Singapore, by reviewing recent studies conducted in those countries. By reviewing 38 studies selected from 430 studies published between 2005 and 2016, we identify the impact of the four leadership styles in the four Asian countries. We start with the research question and purpose, and then propose criteria for selecting the relevant recent studies followed by a review of cultural heritage and its influence on leadership in the four Asian countries. We summarize and review the studies and, finally, discuss the theoretical and practical contributions of this study. 相似文献
206.
大芦家地区渐新统东二1亚段主要由三角洲前缘亚相组成,发育的微相类型包括河口坝、水下分流河道、水下决口扇及天然堤、远砂坝、席状砂、分流间湾等,它们在纵横向上表现出多次复合,多次叠加的特征,且各微相的界限和单砂层的界限并不一致;所有这些微相在垂向上的沉积序列可分为均一型、垂向减小型和垂向增大型三类;此外,该区三角洲体系沉积物源主要由河流从西北方向搬运而来,属高建设性的河控型三角洲,其平面呈朵状向东南方或南方延伸,其微相模式的特点是水下分流河道和河口坝沉积位于中心,其他微相分布在它们的外缘。 相似文献
207.
石敏 《中国农业大学学报(社会科学版)》2016,33(3):76-82
侗族先民以生产糯稻为主,并利用稻田养鱼鸭,创造了侗族地区“稻鱼鸭共生”的原始有机农业文化经典形式。侗族特有的生存环境和农耕方式,形成了侗族人民食不离酸、喜糯食、喜酒、好鱼、茶饮独特等饮食特点及文化。侗族的原生食品加工方法独特,选料考究,营养价值高,富含各种人体所必需的营养物质,特别是以鱼类为加工原料的侗族酸食富含人体所需的可溶性钙是新鲜鱼食品的16倍以上,“稻鱼鸭共生”系统成为侗族食材的一个重要来源。稻鱼鸭复合系统保证了侗族传统食品的特殊性及无公害性,只有优质的传统原生态食材才能保证传统民族食品的传统性,保护“稻鱼鸭共生”系统不仅为民族食品的传承和发展提供了原料的保障,也为侗族传统食品产业化打下了坚实的原料供给基础。 相似文献
208.
刑事审后程序是指除审判监督程序外刑事判决生效后一系列程序的总称,包括刑事执行程序、被害人的权利保障程序以及刑罚被执行完毕人员的前科消灭程序等内容。刑事诉讼法学界除了对作为刑事审后程序重要内容的刑事执行程序研究较为充分外,还没有人对刑事审后程序作过系统的专门研究。对刑事审后程序进行系统的理论研究,特别是建立和完善被害人损害赔偿制度和被害人国家补偿制度,建立刑罚被执行完毕人员前科消灭的法律制度,不仅有助于完善我国刑事诉讼法,也有助于社会主义和谐社会的构建。 相似文献
209.
蔡佳佳 《陕西学前师范学院学报》2017,33(7):52-55
现如今大多数幼儿园将表演游戏融入区域活动中,作为表演区游戏开展活动之一,这一转变,在实践层面上有许多值得研究的问题。文章通过对某幼儿园大班表演区游戏的观察研究发现,表演区游戏在开展中存在场所设置不合理、材料投放单一高控、游戏参与积极性低等问题。为此提出相应的解决对策:游戏前准备适宜的场地、丰富的内容、多样的材料;游戏中细心观察,适时引导,指导过程中注意重游戏轻表演;游戏后共同分享交流,解决游戏中出现的问题,以此更好地发挥表演区游戏的实际效用。 相似文献
210.
Post-crisis policy making increasingly focuses on doing business reforms. We argue that the effects of those reforms will be different across countries. To understand the reasons for the reform outcome divergence, we advance a novel firm-size distribution (FSDs) argument. At the center of the argument is the fact that FSDs are different across countries and stable over time. Then, if a given doing business reform induces firms of different size to grow differently, this will produce a variety of reform outcomes across countries. To advance the argument, we set up a tractable general equilibrium (GE) model and study how firms of different size grow after a doing business reform. The model predicts that larger firms will grow faster than smaller firms after the reform. The model predictions are tested on the Enterprise Surveys (ES) data, merged with the Doing Business indicators. We confirm that firms of different size grow differently after a Doing Business reform. Thus, based on the notable differences of firm size distributions across countries, identical reforms to start, operate and close a business will produce a variety of reform outcomes across countries. 相似文献