中国省区TFP测算及影响因素分析

本文依据1998 -2007年中国28个省区的相关数据,采用修正索洛模型和随机前沿模型测算了中国省区历年的全要素生产率水平和增长率,并利用静态和动态面板数据模型检验了R&D、人力资本、进口、出口以及外商直接投资对我国省区全要素生产率的影响.结果显示,我国省区全要素生产率水平总体呈上升趋势,而增长率则趋于下降,并且地区差距明显.地区间R&D、出口、人力资本对我国省区全要素生产率水平的提高具有显著的正向作用,而外商直接投资和进口的正向作用并不明显;出口对中国省区全要素生产率增长率的提高有明显促进作用,而进口则对其具有明显的阻碍作用,R&D、人力资本及外商直接投资对全要素生产率增长率的提高虽有促进作用,但它们在静态和动态面板数据模型中的显著性则有所差异;另外,研究还发现,中国省区全要素生产率具有显著的“滞后效应”.     

关于"经济发展促进休闲质量提升"一般认识的实证研究——以经济发达的广东省为例

本文以经济发达的广东省为例,对其居民休闲生活的以下方面进行了研究:居民对休闲的认识;居民对闲暇时间的利用,闲暇时间的活动参与;居民对当前休闲生活的评价;影响其休闲生活的障碍;居民对未来休闲生活的期望。研究采用问卷方式,调查广东省居民闲暇时间内的生活状况,发现尽管广东省是中国目前经济最发达的省份之一,但是居民的休闲生活并没有得到很好的改善,其质量并没有随着国民经济的发展而提升。居民对现时的休闲生活并不感到满意,并期望其休闲生活质量得到很大提高。     

休闲活动与主观幸福感

为了探讨休闲活动与主观幸福感之间的关系。文章采用休闲问卷、正性负性情绪量表和生活满意度量表对460名员工进行了调查。结果表明：（1）性别、是否有孩子等人口学变量影响休闲活动;（2）休闲活动对主观幸福感中的正性情绪和生活满意度有显著的正向预测作用,对负性情绪没有预测作用。     

低水分活度的预包装食品中菌落总数复查的研究

为了探讨食品抽检中菌落总数指标复检的可能性,通过对水活度较低的预包装食品乳粉、营养米粉、燕麦片、膨化食品、蜂蜜进行菌落总数测定,对低水分活度预包装食品菌落总数指标的稳定性进行分析。结果表明,同一批次、同一储存条件的未开封预包装食品在不同保存周期内菌落总数在统计学上无显著差异,本研究结果可为低水分活度预包装菌落总数的复查可行性提供参考依据。     

基于知识增加值的业务流程质量评价

首先,引入了知识增加值概念,介绍了运用知识增加值评价业务流程质量的三种方法及其步骤。其次,为了更深刻地理解知识增加值,通过一个案例来说明知识增加值的核算步骤,并且与传统的作业成本分析法进行比较。最后,指出了知识增加值在实际应用过程中可能碰到的问题。但是,可以确信,随着知识经济的发展,知识增加值这种新的方法是会得到更为广泛的应用。     

多株高糖面包酵母生理特性比较

高糖面包酵母作为微生物发酵剂和疏松剂,主要用于面包、甜馒头等高糖发酵类食品的生产.目前,我国销售的高糖酵母生理特性差异很大,为了节约生产成本、提高面包产品质量,本实验通过测定4种市售高糖面包酵母的冷冻存活率、蔗糖酶活力、耐糖性以及高糖发酵力,来了解各品牌酵母的功能特性,筛选出各项指标均较为优秀的市售高糖面包酵母.实验表...     

野菠萝果中多糖、黄酮与多酚的含量测定及抗氧化研究

本研究选用索式提取法和溶剂浸提法提取野菠萝果中的黄酮、多糖和多酚,并根据硝酸铝-亚硝酸钠比色法、苯酚硫酸法和福林-酚比色法测定其含量.采用DPPH自由基清除能力和·OH自由基清除能力进行抗氧化测定.结果表明,野菠萝果中多糖、黄酮和多酚的含量分别为2.30 mg·g-1、4.32 mg·g-1和1.28 mg·g-1,且...     

The System of Rice Intensification (SRI): a challenge for science,and an opportunity for farmer empowerment towards sustainable agriculture

Increasing demand for cereals produced from limited natural resources stimulated the Green Revolution in grain crops like wheat and rice. But the gap between potential and actual production continues. Concerns about sustainability, and the social and technical shortcomings of the Green Revolution, have triggered a number of alternative crop production strategies. One, in particular, the so-called System of Rice Intensification (SRI), is attracting attention by governments, civil society organizations and farmers in Asia and elsewhere.     

Influence of the sector and the environment on human resource practices' effectiveness

The aim of this work is to examine the effect that human resource practice has on performance. From a database made up of 250 companies in Spain and by means of a regression analysis, we test empirically whether human resource practices generate positive results under any circumstance or if their effectiveness depends on certain contexts. In this respect, focusing the study on the activity sector and the environment, we analyse whether high levels of competition in the environment and service companies constitute more attractive contexts for the adoption of high involvement practices.     

The incremental time costs of children: An analysis of children's impact on adult time use in Australia

Abstract

Raising children takes both time and money. Scholars have sought convincing ways to capture the costs of children, but even when these estimates include indirect costs, such as mothers' foregone earnings, they fall short of the true time costs involved. This paper uses data from the 1997 Australian Bureau of Statistics (ABS) Time Use Survey to study how the allocation of time differs across households with varying numbers and ages of children and how households with children differ from those without children. It also examines the intra household division of time resources, showing how childcare, related unpaid work, and the total market and non-market workloads compare for a couple in the same household. It includes secondary activity in an analysis of total parental time commitments to give a more accurate picture of the time cost of children than is possible on the basis of analyzing “primary” activities alone.