论国际投资法的自由化趋势

受经济全球化和贸易自由化的影响,当前阶段国际投资法呈现出前所未有的自由化趋势。这表现在东道国外资法、双边投资条约、区域性投资条约以及国际多边投资条约上,但它们在自由化趋势上又各有不同特点。     

银川经济增长与投资的实证分析

改革开放以来,银川市的经济有了较快发展,其中投资具有举足轻重的作用。投资充分发挥了其拉动经济增长的作用。但与此同时,投资效率不高、消费和出口需求未能发挥其应有的作用,这是今后应解决的问题。     

21世纪后泰国的外资投资发展趋势

本文论述与分析泰国外资投资在进入21世纪后(2001-2004年期间)的增长变化趋势、投资来源结构与投资产业分布结构的变化趋势及其经济背景,并概述在这段期间泰国外资投资政策的演变。     

肝水解肽注射液反相高效液相色谱特征研究

目的 研究肝水解肽注射液的反相高效液相色谱（reverse phase high performance liquid chromatography, RP HPLC）特征。方法 采用RP HPLC/紫外光谱（ultraviolet spectrum, UV）法分离肝水解肽注射液的主要成分。色谱条件：0.1％三氟乙酸水溶液和0.1％三氟乙酸乙腈 0.1％三氟乙酸水溶液（80∶20），进行梯度洗脱，流速为1.0 ml/min；检测波长214 nm。用中药指纹图谱相似度评价软件对所得图谱进行评价。结果 相同厂家不同批号产品特征图谱与均谱相似度均在0.95以上；不同厂家产品特征图谱与均谱的相似度在0.93以上。结论 所建立的RP HPLC方法具有较好的分离能力，线性、精密度良好；企业制剂批间一致性良好，不同来源动物肝脏用不同酶的水解产物几乎无差异。本实验为肝水解肽注射液的质量控制提供了有效的方法。     

防己黄芪汤对脾虚小鼠Mψ,T细胞功能的影响

观察防己黄芪汤经灌胃给药后对脾虚小鼠腹腔巨噬细胞和脾脏Ｔ细胞功能的影响。方法：采用噻唑蓝比色法测定Ｍψ右噬细胞活性及其分泌ＩＬ－１的能力、Ｔ细胞增殖活性及其分泌ＩＬ－＝２的能力。结果：脾虚小鼠Ｍψ、Ｔ细胞功能均明显降低，而防己黄芪汤对上述４项免疫指标下降表现出明显对抗作用     

Does political connection influence corporate financial decisions in unstable political environment?

The aim of this study is to examine the impact of political connection on the cost of debt, the cost of equity and the investment level in an unstable political environment. We use a sample of 55 Tunisian listed firms during the post-revolution period (2011–2018) and we apply a generalized least square (GLS) approach to test our hypotheses. Findings highlight that political connections increase the corporate financial costs and reduce the investment level. Furthermore, in an additional analysis, we show on the one hand that political instability negatively affects the investment and affects positively the cost of debt and the cost of equity. On the other hand, we make evidence that the political instability level negatively affects the relation between the political connection and the cost of debt. The contribution is, to the best of our knowledge, the absence of studies conducted in Tunisia countries examining the impact of political connection on the financial cost and investment level in an unstable political environment such as Tunisia.     

大豆异黄酮改善阿尔茨海默病大鼠学习记忆能力的机制

目的 探讨大豆异黄酮(soybean isoflavones，SIF）改善阿尔茨海默病（Alzheimer''s disease，AD）大鼠学习记忆能力的机制。方法 将70只大鼠随机分为正常对照组，假手术组，模型组，雌激素组和高、中、低剂量SIF治疗组，采用右侧杏仁核注射β-淀粉样肽（β-amyloid peptide，Aβ）25-35复制AD大鼠模型，给予不同剂量的SIF，通过检测逃避潜伏期、游泳时间百分比和2 min内穿过平台次数评价大鼠学习记忆能力，观察并比较各组大鼠海马胆碱乙酰转移酶（choline acetyltransferase，ChAT）活性和半胱天冬氨酸特异性蛋白酶3（cysteinyl aspartate specific protease-3，caspase-3）的活性。结果 与模型组比较，高、中、低剂量SIF组逃避潜伏期显著降低(P<0.01），游泳时间百分比和穿过平台次数显著增加（P<0.01），高、中剂量SIF组大鼠海马ChAT活性显著升高(P<0.01），各剂量SIF组AD大鼠海马caspase-3活性显著降低（P<0.01）。高、低剂量SIF组逃避潜伏期、2 min内穿过平台次数、ChAT活性和caspase-3活性比较，差异具有统计学意义（P<0.01）。结论 大豆异黄酮通过调节AD大鼠海马ChAT和caspase-3活性，改善其学习记忆能力，并呈现一定的量效关系。     

Place and Policy Preferences – Spatial Divides in Attitudes towards Social Policies in Germany

The rise of the knowledge economy has led to a bifurcation between prosperous, often urban, areas and “left-behind” regions. While the literature has started to analyse the political implications of these developments for electoral behaviour and socio-cultural attitudes, the structuring of social policy preferences by place remains unclear. Distinguishing between an economic (booming-declining) and a geographic (urban–rural) dimension, I argue that differences in material self-interest and ideological predispositions explain spatial divides in support for different types of social policies. Combining original survey data on voters' preferences with municipal-level data in Germany, I show that general support for social policy is higher in declining than in booming regions. However, social investments (e.g., active labour market policies) are preferred over consumption policies (e.g., unemployment benefits) in booming and, to a smaller degree, in urban than in declining and rural regions. These findings contribute to a bigger discussion on compensating “left-behind” regions.