Home and school influences on the behavioral and academic outcomes of low-income children of color

Framed within contextual systems model, this study examines how home and school operate together to shape behavioral and academic outcomes for 544 low-income African American (56%) and Latino/a (44%) elementary school-aged children (mean age?=?7.88 years, SD?=?1.46, 50% male). Using data from Welfare, Children, & Families Study: A Three City Study and multiple group path analysis, we found that for children in kindergarten through third grade, the adequacy of the home resources was positively related to applied problem scores (e.g. math literacy) and negatively associated with externalizing behavior. For fourth- to sixth-graders, the adequacy of classroom resources was negatively associated with applied problem scores. For both age groups positive teacher–child relational quality was also a positive predictor of externalizing behavior. Results revealed that barriers to parental involvement in school were a negative predictor of applied problem scores for low-income children in early and later elementary school. Implications for policy and practice aimed at strengthening opportunities for children and families from marginalized communities are discussed.     

试论数字色彩应用

介绍色彩数字编程和色彩数字设计方法。将数字的可变性应用到色彩编程和色彩设计之中,以期对艺术设计中手工颜料调配、提高色彩的准确度及色彩的复制与研究提供参考。     

论色彩设计的回归

现代设计之后的设计思想与实践不仅从环保的、生态的角度积极探讨研究通过设计建立新型的人与自然的和谐共生关系,而且尊重不同的文化,弘扬人文主义精神,并且取得了许多成就。但色彩设计作为现代设计中的重要因素,从设计理论研究和实践应用两方面都还存在不足。文章立足于色彩和色彩设计的本质属性,对色彩和色彩设计的概念、现象及应用进行反思和再认识,主张色彩设计应回归自然本质和人文精神的体现,并在色彩设计中建立系统观念,更好地对色彩设计进行定位。这样才能满足现代设计发展的需要,发挥色彩设计更大的作用。     

产品设计与文化策略

随着社会经济的发展,人们对现代产品已不再满足产品功能带来的物质享受,而是更多地追求产品的文化内涵和艺术价值。因此,现代产品设计应加强文化策略,赋予产品以文化品格,从而体现产品设计的独特文化风格和精神魅力,使现代产品设计在国际市场竞争中立于不败之地。     

Modeling the impact of supra-structural network nodes: The case of anonymous syringe sharing and HIV among people who inject drugs

Networks are well understood as crucial to the diffusion of HIV among injection drug users (IDUs), but quasi-anonymous risk nodes - such as shooting galleries - resist measurement and incorporation into empirical analyses of disease diffusion. Drawing on network data from 767 IDUs in Bushwick, Brooklyn, we illustrate the use of calibrated agent-based models (CABMs) to account for network structure, injection practices, and quasi-anonymous transmission in shooting galleries. Results confirm the importance of network structure and actor heterogeneity to the magnitude and speed of HIV transmission. Models further demonstrate that quasi-anonymous injections in shooting galleries increase the speed of HIV diffusion across the whole network and have the greatest impact on HIV seroconversion levels for IDUs at the network periphery. Shooting galleries are shown to be transmission hubs that operate independently of traceable structural ties, linking otherwise unconnected network components. CABMs potentially increase understandings of HIV diffusion dynamics by infusing computer simulations with empirical data.     

Supply Chain Strategies and International Tax Arbitrage

What motivates the geographic footprint of the supply chains that multinational firms (MNFs) deploy? Traditional research in the operations and supply chain management literature tends to recommend locations primarily based on differentials in production costs and the ramifications of physical distance ignoring the role of taxation. MNFs that strategically position parts of their supply chains in low‐tax locations can allocate the profits across the divisions to improve post‐tax profits. For the profit allocation to be defensible to tax authorities, the divisional operations must possess real decision authority and bear meaningful risks. Generally speaking, the greater the transfer of risk and control, the larger the allowable allocation of profit. These transfers may also create inefficiencies due to misalignment of business goals and attitudes toward risk. We model these trade‐offs in the context of placing in a low‐tax region a subsidiary that oversees product distribution (as a limited risk distributor commissionnaire, limited risk distributor, or fully fledged distributor). Our analysis demonstrates that the MNF's preferences regarding the operating structures are not necessarily an obvious ordering based on the amount of risk and decision authority transferred to the division in the low‐tax jurisdiction. We derive and analyze threshold values of the performance parameters that describe the main trade‐offs involved in selecting an operating structure. We find some of the optimal decisions to exhibit interesting non‐monotone behavior. For instance, profits can increase when the tax rate in the low‐tax jurisdiction increases. Numerical analysis shows that the Limited‐Risk Distributor structure is rarely optimal and quantifies when each alternative dominates it.     

日韩留学生颜色词联想的比较研究

选取日本和韩国留学生各80人作为被试,选定白、红、黄、蓝、紫和粉红6个基本颜色词,制成颜色词的自由联想问卷;采用自由联想和跨文化比较等方法,比较日韩留学生对这些颜色词的联想在具体、抽象及情绪维度上的差异,有助于认识他们的心理特征和民族文化特征。     

民事诉讼代理视野下的“草根律师”制度——以成都地区为例

民事诉讼代理制度作为现代民事诉讼制度中的一项重要制度,是法律面前人人平等原则的重要体现和保障。但是在我国农村劳动力向城镇转移、劳动纠纷增多的时代背景下,我国民事诉讼代理制度日益暴露出一系列的问题。课题组通过大量的实证调研,拟从民事诉讼代理制度的基础理论出发,结合我国目前农民工维权的实际,在理论上初步构建“来自于农民工,服务于农民工”的“草根律师”制度,解决有关农民工劳动纠纷案件中的诉讼代理难的相关问题。     

不对称信息下风险投资家与风险企业家之间的委托代理问题研究

风险投资体系以多重激励和不对称信息为特征,风险投资的三方利益主体之间存在着双重委托-代理关系,有效控制代理风险是风险投资高效运作的基本前提。本文基于信息经济学原理,分析了风险投资家与风险企业家之间代理风险的成因,并从委托人的角度讨论了风险治理的原则和投资契约的构造。     

论关联交易的结构与监管策略——借助经济学理论的功能分析

借助经济学中代理问题理论的分析,发现关联交易或称自我交易,包含代理人、委托人以及作为委托人交易对手的代理人的关联方这三方主体。相对应地,关联交易本身并不是一个交易关系,而是包含着委托代理关系、交易关系和关联关系的一个关系束。因此,从功能分析的角度出发,在监管关联交易时,法律也应当针对这三者之间存在的具有不同特点的关系来有的放矢地设定相应的规制规则。