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151.
加拿大-以色列产业研发基金(CIIRDF)是一项促进加拿大和以色列两国的中小企业进行产业技术创新国际合作的计划.该基金是"有条件投资"的商业导向型计划,通过促进加拿大和以色列两国的中小企业合作进行产业研发合作而获利,而且基金主动将帮助两国企业建立合作关系作为一项重要的任务. 借鉴CIIRDF的做法,我国农业中小企业"走出去"应该创新政府间的合作机制、密切与外援工作的联动、加强信息和中介服务.  相似文献   
152.
The modernist project foresaw no role for small farms, but this can no longer be regarded as axiomatic as neoliberalism enters what Peck et al. call its “zombie phase”. This paper asks what contribution small farms in the uplands can make to societies’ goals, what role they might play in the sustainability of rural communities in such regions, and how this contribution might be supported by state policies. In Scotland and in Norway these questions have recently been the subject of policy debates which appear to offer exceptions or alternatives to neoliberal universalism, and these are considered specifically in this paper. In each case support for small farms is seen as necessary to maintain ‘lights in the windows’ of remoter rural areas. Moreover, each highlights the vital role of the state in offering not only financial support but also in regulating land transfers and occupancy. It is argued that the dismantling of such regulatory powers depletes the state’s ability to manage the tensions between continuity and change which are at the heart of sustainable rural development. The paper concludes that small farms can persist and can contribute to rural sustainability in ways that have been infrequently recognised under neoliberalism.  相似文献   
153.
In this paper we study a smooth estimator of the regression quantile function in the censorship model when the covariates take values in some abstract function space. The main goal of this paper is to establish the asymptotic normality of the kernel estimator of the regression quantile, under α-mixing condition and, on the concentration properties on small balls probability measure of the functional regressors. Some applications and particular cases are studied. This study can be applied in time series analysis to the prediction and building confidence bands. Some simulations are drawn to lend further support to our theoretical results and to compare the quality of behavior of the estimator for finite samples with different rates of censoring and sizes.  相似文献   
154.
A completely nonparametric approach to population bioequivalence in crossover trials has been suggested by Munk and Czado (1999). It is based on the Mallows (1972) metric as a nonparametric distance measure which allows the comparison between the entire distribution functions of test and reference formulations. It was shown that a separation between carry-over and period effects is not possible in the nonparametric setting. However when carry-over effects can be excluded, treatment effects can be assessed when period effects are or not. Munk and Czado (1999) proved bootstrap limit laws of the corresponding test statistics because estimation of the limiting variance of the test statistic is very cumbersome. The purpose of this paper is to investigate the small sample behavior of various bootstrap methods and to compare it with the asymptotic test obtained by estimation of the limiting variance. The percentile (PC) and bias correct- ed and accelerated (BCA) bootstrap were compared for multivariate normal and nonnormal populations. From the simulation results presented, the BCA bootstrap is found to be less conservative and provides higher power compared to the PC bootstrap, especially when skewed multivariate populations are present.  相似文献   
155.
Recent years have seen a heightened interest in estimating effect size—a common measure of effect magnitude in biomedical research—because of its direct clinical relevance. In this article, three interval estimates of effect size for randomized comparative parallel-group studies with unequal variances are discussed. Two real-life examples illustrate that confidence intervals obtained by three methods are quite different, especially when the sample sizes are small. Simulation results show that confidence intervals generated by the modified signed log-likelihood ratio method yield essentially the exact coverage probabilities, whereas the other two methods, even though they are more popular methods, yield less satisfactory results.  相似文献   
156.
Abstract

The present article examines the strengths of small group teaching within the context of the professional and ethical requirements of social work education. It outlines some of the strategies adopted to ensure that reliance on this mode of educational delivery contributes to the excellence of practice knowledge and teaching standards to which universities commit and which professional associations and clients expect. Small group teaching continues to be perceived as an integral component in the preparation for professional social work practice and has important functions in the mentoring and socialisation of beginning practitioners. It would be valuable, in the light of developments in technology-assisted educational modes of delivery, to further research the relative impact of face-to-face teaching and its alternatives, given contemporary pressures upon both tertiary institutions and social work students.  相似文献   
157.
利用2011年城乡居民随机问卷调查数据组成研究数据库,以家庭为研究单位,将农户分为本地传统农业生产型、本地小城镇化型、半城市化型和城市化型四种生计类型,并对四类农户家庭的人口特征进行统计、比较和显著性检验,寻求农村人口梯次城市化的现实依据。分析认为:农村人口梯次城市化是农户家庭人口特征差异的必然要求;家庭人口特征对城市化转移区域选择有明显的影响;发展本地小城镇应该成为城市化战略的着力点,并建议政府采取措施着力培育新型农民、着力扩大小城镇规模、降低农村人口城市化的门槛等,以推进农村人口梯次城市化。  相似文献   
158.
DCC—GARCH模型能较好地刻画金融市场间的线性动态相关性,而时变相关的正态Copula模型主要用于考察金融市场间的非线性动态相关性,选取创业板指数(399006)和中小板指数(399005),通过对两大指数收益率序列进行建模,基于DCC—GARCH模型和Copula模型分别计算两市场间的动态相关系数,以考察两市场间的动态相关性。研究结果表明:①创业板市场与中小板市场存在正相关关系,且相关性很强;②时变Copula模型因捕捉了市场收益率随时间变化的特性,在刻画金融市场问的相关性方面,效果要优于常相关Copula模型;③除个别时点外,DCC—GARCH模型计算的动态相关系数处于稳定的区间,而Copula模型计算的动态相关系数会表现出异常值的出现,这是由于其考虑了市场间的非线性因素所致,效果优于前者。  相似文献   
159.
中小型民营企业"走出去",可以发挥其机制灵活的优势,更好地开展对外投资合作。上海急需培育一批本土中小企业跨国公司,以形成上海未来新的经济增长点和动力源。为此,上海要加强对中小企业"走出去"的统筹协调、分类指导;做好中小企业境外投资风险防范工作;引导企业实施商标国际化战略;强化金融扶持政策的支持力度;实施降低中小企业税负的政策;创新贸易便利性政策,提高境外投资通关服务水平;提升国家形象和外交水平,为中小企业境外投资提供服务和保障;加大"走出去"人才的培养与建设;强化中国在认证体系上的话语权和公信力;完善政府"走出去"服务体系政策。  相似文献   
160.
中小企业的法律风险,是企业各种风险中危害性较大的一种风险。法律风险一旦发生,企业一般将陷入经营困境,甚至破产倒闭。因此法律风险对企业的生产经营活动影响极大。文章针对中小企业法律风险产生的原因及特点,分析中小企业法律风险防范工作中存在的问题,并据此有针对性地提出若干改进措施。  相似文献   
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