从行业发展阶段选择企业战略

本文从行业发展过程的角度出发 ,指出了行业发展存在两种循环过程 ,分析在位企业和后进入企业在行业发展不同时期的战略选择。进一步细化迈克尔·波特差异化战略的对象范围 ,指出了差异化战略与低成本领先战略在企业发展过程中的相互关系 ,它们共同决定着企业的战略选择     

Regression-based estimation of the false negative fraction when multiple negatives are unverified

Summary.  The paper describes a method of estimating the false negative fraction of a multiple-screening test when individuals who test negatively on all K tests do not have their true disease status verified. The method proposed makes no explicit assumptions about the underlying heterogeneity of the population or about serial correlation of test results within an individual. Rather, it is based on estimating false negative fractions conditionally on observed diagnostic histories and extrapolating the observed patterns in these empirical frequencies by using logistic regression. The method is illustrated on, and motivated by, data on a multiple-screening test for bowel cancer.     

牧区县域经济核心竞争力的源泉与培育研究

草原牧区县域经济发展的首要问题是培育核心竞争力,牧区县域经济核心竞争力的源泉是传统基础产业和历史文化底蕴,在增强产业创新能力、关联产业集群和政策管理体系的基础上,培育传统产业转型升级,形成农牧户、企业、市场、研发等多元机构组成的共创性联合体,以牧工商有机结合的融合机制,实现一、二、三产业融合发展的六次产业化格局,提高牧区县域经济核心竞争力。     

Optimal superimposed codes and designs for Renyi''s search model

Renyi (Bull. Amer. Math. Soc. 71 (6) (1965) 809) suggested a combinatorial group testing model, in which the size of a testing group was restricted. In this model, Renyi considered the search of one defective element (significant factor) from the finite set of elements (factors). The corresponding optimal search designs were obtained by Katona (J. Combin. Theory 1 (2) (1966) 174). In the present work, we study Renyi's search model of several significant factors. This problem is closely related to the concept of binary superimposed codes, which were introduced by Kautz and Singleton (IEEE Trans. Inform Theory 10 (4) (1964) 363) and were investigated by D'yachkov and Rykov (Problems Control Inform. Theory 12 (4) (1983) 229), Erdos et al. (Israel J. Math. 51 (1–2) (1985) 75), Ruszinko (J. Combin. Theory Ser. A 66 (1994) 302) and Furedi (J. Combin. Theory Ser. A 73 (1996) 172). Our goal is to prove a lower bound on the search length and to construct the optimal superimposed codes and search designs. The preliminary results have been published by D'yachkov and Rykov (Conference on Computer Science & Engineering Technology, Yerevan, Armenia, September 1997, p. 242).     

中国国家治理体系和治理能力现代化:历史逻辑和实践框架

中国国家治理体系和治理能力,其内涵既具有一般性,即基于国家运行的制度建构和制度执行问题;同时更具有特殊性。治理体系体现为"一纲两目",即"政党政治"总纲,"制度建构"和"制度执行"两目;治理能力包含三层能力,即"治党治国治军"、"内政外交国防"、"改革发展稳定"。从逻辑上说,中国国家治理的一纲两目,来源于中国"政党政治"的国家道路选择,在当代中国,需要有五个要素对该道路进行支撑,即:党指挥枪、党的领导、发展生产力、共同富裕、共产主义理想信念。从实践上看,中国国家治理体系建构和治理能力提升,可概括为三层能力、四大领导、五项议程、六位一体。     

汉英词典100核心词释义对比研究

文章认为判定不同国家的词典是否属于同类词典的标准有三条：词典性质、词典收词、词典释义。根据上述标准,文章认定《现汉》《牛津》《韦氏》等汉英词典都是中型语文性词典,在此基础上,对这些词典中100核心词的义项数目及其分布做了简要对比,认为与《牛津》《韦氏》等英语词典相比,《现汉》等汉语词典在100核心词的义项划分方面比较粗疏。最后,文章从语料库技术、词典的编纂历史以及语言学理论等三方面,分析了中国词典100核心词义项划分粗疏的原因。     

社会主义核心价值体系大众化研究进展与评价

推进社会主义核心价值体系大众化是深入开展社会主义核心价值体系的教育活动的必然体现,为此,学术界展开了对社会主义核心价值体系大众化的理论探讨,并取得了一定的成果,形成了初步的共识。对现有的研究进展进行梳理和评价,既有助于深化此领域的研究,同时又能进一步加深社会主义核心价值体系的研究进程。     

“公共性”凝聚：社会主义核心价值体系的实践哲学基础

“社会主义核心价值体系”的提出,是从社会主义意识形态高度,以当下中国思想道德建设的现实关切为出发点,对社会公共生活的价值理念所做的思考,力图使“公共性”的道德理想信念成为一种全社会的自觉。社会主义核心价值体系建构过程中存在的障碍在于受众“公共性”信仰的式微及由此产生的实践困境。建构社会主义核心价值体系应努力实现“公共性”凝聚,构建社会主义核心价值体系的实践哲学基础。     

A High School Course in Sociology

Because of the importance that geography plays in our understanding of economics, history, and politics, it has been argued that the subject should be taught to students beginning at the early elementary level, usually focusing on the family unit and local communities. However, when the proper technology tools and strategies are used, students at the kindergarten level can learn more complex concepts of geography and other social studies ideas and Common Core Standards. This article is a narrative about how a kindergarten teacher's discovery of “website widgets” brought the world to her classroom while helping her students learn important social studies knowledge and skills.     

A learning collaborative approach to training school-based health providers in evidence-based mental health treatment

Collaborative care models among pediatric primary care and child and adolescent mental health providers are increasingly emphasized to improve quality of and access to mental health services. The current case example of a multi-site clinical training opportunity in school-based collaborative care settings illustrates the success of a learning collaborative approach to improve children's mental health care in schools. Quality improvement data from participating sites indicated an increase in use of evidence-based practices (i.e., “core skills”) and an improvement in quality service delivery indicators for children's mental health (i.e., screening, risk assessment, diagnostic processes, associated diagnostic coding, use of core skills, associated procedural coding, and follow-up assessment and referral) over time. Clinician self-report and chart review data are supplemented by qualitative data from site leader interviews conducted following completion of the project. Implications for mental health workforce development to improve the quality of care to children and adolescents in schools and other community mental health settings are discussed.