河北省林权制度演进的动因分析

河北省林权制度演进的动因主要包括国家意志的改变、农民需求的变化、人口数量的变化、森林资源稀缺程度的变化、要素和产品相对价格的变化等几个主要方面。以制度变迁理论、时间序列分析和供求理论对相应因素进行深入分析,结果显示:诸多动因相互作用推动了河北省林权制度的演进。因而,在制定林权政策时,要综合考虑各方面因素的影响以及相互之间的关系以期达到一个均衡状态。     

酸奶发酵剂冷冻干燥特性的分析

本文通过真空冷冻干燥试验获得酸奶发酵剂在冻干过程中真空度、搁板温度、酸奶发酵剂温度的数据;通过数学模型方法得出真空度、搁板温度、酸奶发酵剂温度与时间的数学关系,这些数据关系将为进一步研究和优化酸奶发酵剂冷冻干燥提供参考。     

公共项目交易中的治理模式研究

本文在对公共品供给模式分析的基础上探讨了公共项目契约的形成和交易治理模式.非经营性项目由传统的公共部门垄断经营供给模式转化为对其实行代建制,准经营性项目实行公私合作的供给模式,并针对不同的供给模式给出了两种不同的治理模式以解决公共项目契约组织中的代理人问题.     

不同矮化剂对小丽花植株矮化的影响

研究了不同矮化剂不同浓度对小丽花植株矮化的影响,结果表明,小丽花矮化过程中,喷施2000～3000mg/kg的国光B9的矮化效果最佳,浓度过低矮化效果不明显,而浓度过高则影响开花率及植株长势.     

非金融企业债务融资工具非公开定向发行研究

为促进银行间债券市场需求的差异化、多样化,活跃市场交易、推动市场发展,中国银行间市场交易商协会于2011年4月29日发布《银行间债券市场非金融企业债务融资工具非公开定向发行规则》。这是我国银行间债券市场发行方式上的一大创新。本文在对银行间债券市场发展历程进行回顾的基础上,对非公开定向发行的主要特点与运行制度安排进行了详细分析。比较了非公开定向发行与公开发行的六点差异。在此基础上,本文列举了推出非公开定向发行方式的四点重要意义。最后,本文对发展中应予重视的五类风险进行了系统剖析。     

餐饮废油的回收利用研究进展

综述了餐饮废油在制备生物柴油、化工原料、饲料、混凝土制品脱模剂等领域中的应用及研究进展．并对其发展前景进行了展望。     

保险公司个人代理营销体制发展方向思考

上世纪90年代,个人保险代理人(下称营销人员)制度引入中国,为中国保险业的发展做出了巨大贡献,但随着保险业的快速发展,保险营销制度的缺陷日益凸显,已进入瓶颈状态。2009年4月,保监会下发了《关于改革完善保险营销体制机制的意见》(征求意见稿),确立了保险营销体制改革的目标、重点和路径,这是中国保险业发展史上关于营销体制改革的第一个权威性官方文件,代表了官方层面对于现行保险营销体制的立场和未来的发展期望,笔者以财险公司的工作经历,提出了对我国保险营销体制发展方向的一些看法。     

Patient- and clinician-reported satisfaction with pharmacological stress agents for single photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI)

Abstract

Objective:

The objective of this study was to compare clinician and patient measures of satisfaction with two pharmacological stress agents (PSA), regadenoson and dipyridamole, used in Single Photon Emission Computed Tomography (SPECT) Myocardial Perfusion Imaging (MPI).

Methods:

This observational study included patients who had undergone SPECT MPI with regadenoson or dipyridamole, as well as the clinician/clinical technologist who performed the test. Mean scores for individual item and domain scores of the main outcome measures were computed as well as the effect sizes (ES) of the mean difference in scores between treatment groups. Statistical significance of the mean item and domain score differences were assessed via Mann-Whitney tests.

Main outcomes measures:

Two self-report questionnaires which had beeb previously developed and validated: Patient Satisfaction/Preference Questionnaire (PSPQ) and Clinician Satisfaction/Preference Questionnaire (CSPQ).

Results:

A total of 87 patients (68 received regadenoson, 19 received dipyridamole) and nine clinicians/clinical technologists took part in the study. Patients had a mean age of 66.8?±?12.2 years, and 56.3% were male. Compared to dipyridamole, use of regadenoson was associated with greater clinician satisfaction on all items and domains of the CSPQ (p?<?0.001 for all comparisons). Among patients, regadenoson was associated with less bother and greater satisfaction than dipyridamole for all items on the PSPQ. These patients reported less stinging at the injection site (ES?=??0.66) and less nervousness during injection (ES?=??0.60). The PSPQ found that regadenoson patients were more satisfied with their PSA than dipyridamole patients in all areas.

Limitations:

This study utilized a relatively small sample size of dipyridamole patients and lacked an adenosine group. A broader sampling of professionals would also help demonstrate generalizability.

Conclusion:

Both patients and clinicians reported higher satisfaction with regadenoson compared to dipyridamole for SPECT-MPI. Clinicians were particularly satisfied with the preparation and administration aspects of the drug, while patients rated it highly on convenience and reduced incidence of side-effects.     

Agent‐based modeling for ex ante assessment of tree crop innovations: litchis in northern Thailand

This study uses an agent‐based model for ex ante assessment of agricultural innovations. The model builds on whole farm mathematical programming (MP) and extends the methodology with a spatial representation of the system, the heterogeneity of farm households and landscapes, and the interaction between farm households. We apply the model in a northern Thai watershed to study the potential of four innovations to increase the profitability of litchi orchards. Cost‐benefit analysis shows that each innovation would increase the profitability of litchi growing; however, the results of the agent‐based model show that at current price levels these innovations alone would not be enough to stem the decline in the area under litchis. The model was validated and the sensitivity of the results tested for variations in the irrigated water supply and liquidity. We report on how farmers responded to these results and discuss the implications for other areas in northern Thailand.     

第三方物流信息系统中基于agent的web服务组合研究

为解决第三方物流信息系统中web服务智能组合问题,对基于agent的web服务组合开展研究,提出基于agent的Web服务组合模型,设计服务组合的流程,分析基于agent的物流web服务组合关键问题。