26届乒乓球世界杯波尔与王励勤主要技术指标的比较分析

通过对波尔参加26届乒乓球世界杯对王励勤比赛的主要技术指标的比较分析,找出其优势所在及不足之处,即:波尔整体技术实力低于对手,但发球、接发球、接球后抢攻质量高于对手,主动相持局面较对手多,对尾局出现的战机球及关键局的把握与控制能力较对手强.     

Diversification of procedural and administrative costs and innovation: Some firm-level evidence

We examine the diversification of administrative and procedural costs on patent stock using a large dataset from the European Patent Office with 15,000 firms for the period between 1995 and 2015. The results reveal that administrative and procedural costs are significant for firm-level patenting activity. However, not all administrative and procedural costs have equal effects. Higher administrative costs often encourage patent application and validation by solving the adverse selection problem and short-run opportunism, as well as other sources of asymmetric information. The effective administration of intellectual property law and low-cost enforcement are found to considerably foster patenting activity. The effects are robust for various mis-specification checks and do not disappear once country-level research and development infrastructure proxies are controlled for. The extreme bounds of administrative and procedural costs are computed across more than 5 billion regressions, and the sizeable impact of administration on patent application and validation outcomes is confirmed.     

Cu~(26+)离子1s~2 nd(3≤n≤9)态的电离能、激发能和精细结构

利用全实加关联的理论方法计算了具有较高核电荷(Z=29)的Cu26+离子1s2nd(3≤n≤9)态的非相对论能量.在计算体系的总能量时,考虑了离子实和角动量分波对能量的修正、一阶相对论效应和质量极化效应对能量的修正、量子电动力学(QED)效应对能量的修正以及高阶相对论效应对能量的修正.给出了Cu26+离子1s2nd(3≤n≤9)态的电离能、激发能和精细结构劈裂.得到的计算结果与实验数据及物理规律符合的很好.     

Wage earning differentials by field of study: Evidence from Vietnamese university graduates

Using data from the 2018 Labor Force Survey, this paper analyzes wage differentials by field of study among Vietnamese university graduates. In contrast to previous findings, we find that many fields, even more technically and quantitatively oriented disciplines, such as engineering, science/math/computer science and business/finance, afford lower earnings than do the arts/humanities disciplines. The differences are statistically significant and, in many cases, large, even after controlling for other individual and regional characteristics. Also, the differences are greater among female than among male graduates. Our results shed light on the value of various types of human capital represented by the various disciplines. Such findings offer useful policy implications for policymakers and educational managers.     

Macro-level indicators of the relations between research funding and research output

In response to the call for a science of science policy, we discuss the contribution of indicators at the macro-level of nations from a scientometric perspective. In addition to global trends such as the rise of China, one can relate percentages of world share of publications to government expenditure in academic research. The marginal costs of improving one's share are increasing over time. Countries differ considerably in terms of the efficiency of turning (financial) input into bibliometrically measurable output. Both funding schemes and disciplinary portfolios differ among countries. A price per paper can nevertheless be estimated. The percentages of GDP spent on academic research in different nations are significantly correlated to historical contingencies such as the percentage of researchers in the population. The institutional dynamics make strategic objectives such as the Lisbon objective of the EU – that is, spending 3% of GDP for R&D in 2010 – unrealistic.     

Is there a linear relationship between R&D intensity and growth? Empirical evidence of non-high-tech vs. high-tech SMEs

To investigate whether there is a similar relationship between R&D intensity and growth in high-tech and non-high-tech small and medium-sized enterprises (SMEs), we examine two samples of SMEs in manufacturing industries, applying the two-step estimation method. Our findings are that R&D intensity restricts the growth of high-tech SMEs at lower levels of R&D intensity and stimulates their growth at higher levels. However, R&D intensity restricts the growth of non-high-tech SMEs regardless of the level of R&D. The relationships obtained between other determinants considered in the literature and the growth of high-tech and non-high-tech SMEs allow us to conclude that (i) smaller, younger, non-high-tech SMEs grow more quickly than larger, older, non-high-tech SMEs, which does not occur in the case of high-tech SMEs; and (ii) financing restrictions are especially important in financing the growth of high-tech SMEs, compared with non-high-tech SMEs.     

第26届亚洲男子篮球锦标赛中国队与对手攻防实效的对比研究

运用综合秩序法对第26届亚洲男子篮球锦标赛15支参赛球队(除卡塔尔队以外)的综合攻防能力进行量化评价,通过对中国男子篮球队与强劲对手伊朗、韩国、约旦等球队整体及位置攻防进行对比分析,找出中国男子篮球队的优势与不足。分析得知:各参赛队实力有较大差距,伊朗、中国、韩国、约旦队属于亚洲一流强队,RSR值排在前4。中国男子篮球队进攻RSR值为0.73,防守RSR值为0.83,是典型的攻弱守强型的球队。伊朗队攻防RSR值均高于中国队,其中,在场均罚球命中率、篮板球、助攻等指标上差别具有显著性(P<0.05);与约旦队相比,攻防指标(除失分外)差别不具有显著性(P>0.05);与韩国队相比,在场均3分球投篮次数、2分球投篮次数、助攻等指标上差别具有显著性(P<0.05);后卫运动员与伊朗、韩国队后卫运动员相比差距显著,主要体现在助攻次数低下,外围攻击力不强,冲抢不积极等。前锋运动员优势明显但整体不及约旦队,主要体现在对抗能力不足,投篮命中率低,整体得分能力不均等。中锋运动员与伊朗队相比差距显著,主要体现在综合能力下降明显,尤其是得分能力偏弱、体能不足等。     

Long-term impact of abusive head trauma in young children

ObjectiveAbusive head trauma is the leading cause of physical abuse deaths in children under the age of 5 and is associated with severe long-lasting health problems and developmental disabilities. This study evaluates the long-term impact of AHT and identifies factors associated with poor long-term outcomes (LTOs).MethodsWe used the Truven Health MarketScan Research Claims Database (2000–2015) to identify children diagnosed with AHT and follow them up until they turn 5. We identified the incidence of behavioral disorders, communication deficits, developmental delays, epilepsy, learning disorders, motor deficits, and visual impairment as our primary outcomes.ResultsThe incidence of any disability was 72% (676/940) at 5 years post-injury. The rate of developmental delays was 47%, followed by 42% learning disorders, and 36% epilepsy. Additional disabilities included motor deficits (34%), behavioral disorders (30%), visual impairment (30%), and communication deficits (11%). Children covered by Medicaid experienced significantly greater long-term disability than cases with private insurance. In a propensity-matched cohort that differ primarily by insurance, the risk of behavioral disorders (RD 36%), learning disorders (RD 30%), developmental delays (RD 30%), epilepsy (RD 18%), and visual impairment (RD 12%) was significantly higher in children with Medicaid than kids with private insurance.ConclusionAHT is associated with a significant long-term disability (72%). Children insured by Medicaid have a disproportionally higher risk of long-term disability. Efforts to identify and reduce barriers to health care access for children enrolled in Medicaid are critical for the improvement of outcomes and quality of life.     

Selective subsidies,entrepreneurial founders' human capital,and access to R&D alliances

We investigate if and to what extent the receipt of a “selective” subsidy – a public subsidy awarded through a competitive procedure – helps new technology-based firms (NTBFs) to access R&D alliances. In particular, we theoretically enquire and empirically analyze which founding team-level characteristics allow NTBFs to: i) get a selective subsidy; and ii) access an R&D alliance with another firm or a public research organization/university, once the subsidy is awarded. We use a sample of 902 NTBFs that operate in Italy, where industrial policy has never had an explicit and exclusive mandate neither for targeting NTBFs nor for easing their access to R&D networks. By means of several identification strategies and estimation methods, our results point to the relevance of selective subsidies in facilitating NTBFs to enter R&D alliances, independently from the objective of the policy measure. Second, founders’ technical education figures as a key determinant to get the first selective subsidy. Finally, founders’ previous industry-specific work experience allows NTBFs to better exploit the selective subsidy, by positively moderating the impact of the subsidy on the likelihood to establish a corporate R&D alliance.     

独立学院地方性发展实践的政策启示 ——基于浙江省独立学院的实地调查

从政策角度看,独立学院具有"先发展后规范"的显著特征.这一特征决定了独立学院的地方性实践与中央政策统一性要求之间的矛盾.本文以浙江省独立学院为例,通过分析其发展特征和主要贡献,以及办学实际与独立性要求之间的差异,发现落实"26号令"存在一些根本性的困难.在此基础上,本文提出国家政策的制定要因地制宜的建议,并指出了独立学院今后发展的关键要素.