Three Parallel Flats Designs for Two-level Factorial Experiments

This paper investigates the properties of the class of three parallel flats designs for two-level factorial experiments. It shows that the designs constructed from this class of designs can have a very simple correlation structure. The correlation of any pair of best linear unbiased estimators of factorial effects is 0, ⅓ or ¼. Furthermore, the designs obtained also have high D-efficiency. Finally, a class of designs is generated with run-size N = 12 to illustrate the use of the theorem.     

机动化时代我国城市公共交通的系统优化与制度保障

随着国民财富的不断增长．我国城市机动车拥有量逐渐增加．并日益成为城市居民的主要出行工具．这昭示着机动化时代已经来临。机动化时代与之前社会相比．其主要区别在于个体机动交通出行快速增长．并使得城市道路越来越拥挤．公众的出行成本日趋增加．     

建立适度普惠型的流浪儿童救助服务体系——以某省流浪儿童救助保护中心为例

本文通过对某省少年儿童救助保护中心的实证调查,分析了新时期流浪儿童的群体特征和救助工作中出现的不足与原因,提出要提升流浪儿童救助水平,应推动儿童福利由补缺型向适度普惠型转变。在综合"类家庭"与"类学校"模式优势的基础上,形成集抚养、监护、教育为一体的新型流浪儿童救助保护模式。     

上海五大新城打造独立综合性节点城市研究

长三角在国家新发展格局中具有特殊地位,承担着突出重围和引领增长的战略使命.五大新城地处上海市域,连接上海周边城市,是上海辐射带动长三角城市群的重要支撑点.将五大新城打造成为独立综合性节点城市是上海成为国内大循环的中心节点、国内国际双循环战略链接的重要举措,将有助于上海增强辐射带动功能.     

Tablet assessment of word comprehension reveals coarse word representations in 18–⁠20-month-old toddlers

The present study explores the viability of using tablets in assessing early word comprehension by means of a two-alternative forced-choice task. Forty-nine 18–20-month-old Norwegian toddlers performed a touch-based word recognition task, in which they were prompted to identify the labeled target out of two displayed items on a touchscreen tablet. In each trial, the distractor item was either semantically related (e.g., dog–cat) or unrelated (e.g., dog–airplane) to the target. Our results show that toddlers as young as 18 months can engage meaningfully with a tablet-based assessment, with minimal verbal instruction and child–administrator interaction. Toddlers performed better in the semantically unrelated condition than in the related condition, suggesting that their word representations are still semantically coarse at this age. Furthermore, parental reports of comprehension, using the Norwegian version of the MacArthur–Bates Communicative Development Inventories, predicted toddlers’ performance, with parent–child agreement stronger in the semantically unrelated condition, indicating that parents declare a word to be known by their child if it is understood at a coarse representational level. This study provides among the earliest evidence that remote data collection in 18-20 month-old toddlers is viable, as comparable results were observed from both in-laboratory and online administration of the touchscreen recognition task.     

俄罗斯与亚太地区的能源合作以及中国的应对

能源是国家经济发展和安全之所系,能源问题已成为各国关注的焦点问题之一.本文从讨论俄罗斯与亚太地区能源合作的原因出发,分析俄罗斯与中国和亚太地区国家能源合作的战略,探讨制约俄罗斯拓展亚太能源市场的内部因素,预测俄罗斯与亚太地区的能源合作前景,进一步提出中国应对俄罗斯亚太能源战略的措施.     

仲裁案件网上审理研究

仲裁案件网上审理是将互联网与传统仲裁相结合的审理方式,不仅有利于降低仲裁成本、实现仲裁的公正、便利当事人参加审理,也与网络经济蓬勃发展的趋势相适应。网上审理分为开庭审理和书面审理两种方式,网上开庭审理可分为庭审准备、庭审调查、庭审辩论、评议和作出裁决五个阶段。实施网上审理必须具备观念、法律、技术和人才等方面的条件。     

建立平等就业制度:问题与机遇

在市场就业机制下,就业机会不仅表现为企业的用工自主和劳动者的择业自由,不包括政府对就业服务和扶持等制度安排——就业管理、就业服务和就业补贴。目前,制度政策的制定者、执行者、遵守者存在着明显的目标分歧。     

英语写作的有效性教学策略实践研究

文章分析了英语写作教学的内容,建构了"1525"课堂教学体系,综合运用三种教学模式,创建写作分格训练平台,固化训练时间,强化系统训练,实现有效性英语写作教学。     

构建类一本院校核心竞争力的探索与研究——以华北水利水电大学为例

学校发展依赖于教师与学生,提高学校的核心竞争力需要提高教师和学生的核心竞争力。本文以提高教师胜任力与培养学生创新实践能力为目标,提出通过改革教学实践环节,培养学生创造性思维和延长毕业设计周期等方案来提高类一本院校的核心竞争力。