网络平台对用户生成数据的权益性质

用户提供并存储在网络平台上的数据系网络平台经营者的营业财产的一部分,网络平台经营者对其享有营业权.营业权的保护方式更类似于受法律保护的利益而非绝对权,在认定第三人获取网络平台的数据是否构成侵权时,需要法院基于个案对相关权利和利益进行权衡.网络平台经营者对于平台上的数据进行保护时可以采取技术控制和协议控制两种方式,但都不应逾越合理的限度.当网络平台经营者的数据权益遭到第三人损害时,如果加害者与受害者之间存在商业竞争关系,应当优先适用反不正当竞争法进行救济;当两者之间不存在商业竞争关系,或者适用反不正当竞争法不足以救济受害者时,可以适用侵权责任法给予受害者以救济.     

大豆生产者补贴政策改革促进农户种植结构调整了吗?——基于全国446个县的准自然实验

以大豆生产者补贴政策改革作为切入点,将政策实施地区和非实施地区视为一次部分省份优化大豆、玉米种植结构的准自然实验,通过构建PSM-DID模型,考察大豆生产者补贴政策改革对农户种植结构调整的影响及其作用机制.结果表明:(1)大豆生产者补贴政策改革对农户种植结构调整具有显著的时间异质性,政策改革初年(2017年)大豆与玉米的面积之比显著提高6.5％,虽然2018年大豆与玉米的相对补贴额度出现大幅度增长,但大豆与玉米的面积之比仅显著提高3.4％;(2)预期相对收益的提升是2017年农户调整种植结构的重要原因,然而,经过对新制度一年的适应后,农户对种植玉米的路径依赖、补贴错位、地租的不合理增长以及大豆、玉米相对价格不理想等问题逐渐凸显,2018年农户重新调整种植决策,补贴的激励作用被迫减弱.基于此,研究结论为统筹大豆、玉米补贴机制可以促进农户种植结构调整提供经验性证据,也为在农业供给侧结构性改革和大豆振兴压力下如何持续改善种植结构提供政策启示.     

混合式教学模式下有机化学实验引入"课程思政"的探索与研究

引入课程思政、改革教学模式是新时代对高等教育中的实践课程教学提出的新要求.在改变实验教学模式的基础上初步探索了部分实验项目的教学内容和方法.在混合教学模式(线上线下相结合)下,构建了以有机化学实验基本知识技能为主体,以天人合一、艰苦奋斗、辨证论治等中华传统思想为主导的有机化学实验课程教学体系.     

工程教育专业认证背景下培养目标的持续改进研究 ——以成都理工大学石油工程专业为例

加入《华盛顿协议》是我国工程教育迈出的重要一步.成都理工大学能源学院自2016年申请石油工程专业认证以来,总结整理了针对不同评价主体、针对培养目标合理性的座谈、访谈交流和问卷调查.基于评价认识,从"四大支柱说"体系下的培养目标内涵、与专业定位匹配度、适应行业发展情况以及与毕业要求的对应支撑关系四大方面进行了培养目标持续改进分析.在已有培养目标合理性评价与改进机制基础上,形成了更加适应行业趋势和需求,定位明确、层次清晰、逻辑结构合理的培养目标内容,为提高专业培养目标认识水平和专业认证工作有序开展提供有益借鉴.     

绿色增长下的导向性技术创新选择研究

针对如何正确引导 GHG 排放的气候反馈经济损失下导向性技术创新，以实现长期的绿色增长这一问题，基于 DICE 模型，重构导向性技术创新不同的动力要素及其与气候变化之间的内生关系，建立了可体现绿色增长“均衡性”、“包容性”和“可持续性”的非线性最优控制模型。数值仿真结果显示: 气候反馈经济损失不容小觑; 偏于生产的绿色技术创新导向下社会生产力强劲但存在气候环境恶化风险，偏于减排的绿色技术创新导向下气候反馈经济损失小但存在增长动力匮乏风险，二者虽均可实现长期的绿色增长，但中性的绿色技术创新导向会更稳妥; 偏于生产的绿色技术创新导向下人均消费变化率在短期内会显著提升。     

高频数据瞬时波动率核估计的窗宽选择及算法研究

在瞬时波动率的各种估计量中，非参数估计量因其能准确地度量瞬时波动率，一直是学者们的研究热点。然而，这类估计量在实际应用中都面临着最优窗宽的确定问题。由于最优窗宽中往往携带一些难以估计的未知参数，使得在实际应用过程中确定最优窗宽的具体数值存在困难。本文以瞬时波动率的核估计量为例，借鉴非参数回归分析中窗宽选择的思想，构建了一种能从数据中准确计算出最优窗宽具体值的算法。理论的分析和数值上的验证表明：文中所构建的算法具有良好的稳定性、适应性和收敛速度。算法的提出为瞬时波动率的后续应用研究铺平道路。     

Changes in anti-fat weight bias in women after exposure to thin and plus-sized models

We examined whether exposing women to female models with different body sizes lead to changes in weight-based attitudes and whether evaluation focus altered the effects. Female college students (N = 214) were exposed to 22 images of either thin or overweight models. Participants rated models on either appearance or non-appearance characteristics and completed measures of anti-fat attitudes, thin ideal internalization, and demographics. Participants rated thin and overweight models equally attractive and sexy. Viewing overweight models showed a significant reduction in anti-fat attitudes. There were no effects for thin models or evaluation ratings. Discussion focuses on the implications of positive images of overweight individuals on social attitudes.     

“一带一路”倡议下阿拉伯语在泉州地区商贸中的应用研究

福建泉州是中国“海上丝绸之路”的重要起点，也是响应习近平主席提出“一带一路”倡议的重要地区。文章基于当前倡议背景，依托泉州地理优势和经济发展，结合阿拉伯语商业特征，论述阿语在地区对外商贸拓展与商务跨文化沟通等发挥的积极作用和现实意义。     

Semiparametric regression of clustered current status data

This paper discusses regression analysis of clustered current status data under semiparametric additive hazards models. In particular, we consider the situation when cluster sizes can be informative about correlated failure times from the same cluster. To address the problem, we present estimating equation-based estimation procedures and establish asymptotic properties of the resulting estimates. Finite sample performance of the proposed method is assessed through an extensive simulation study, which indicates the procedure works well. The method is applied to a motivating data set from a lung tumorigenicity study.     

Values and happiness among Asian adolescents: a cross-national study

Despite policy efforts to increase adolescent happiness, their impact has been unsatisfactory. Their limited impact may be rooted from a discrepancy between values that adolescents pursued and those that the policies were based on. To provide policy implications, our study aims to identify prevailing values for South Korean, Japanese, and Chinese adolescents and to examine the relationship between the values and self-rated happiness (SRH). A cross-sectional study was conducted using survey data collected on approximately 2000 middle and high school students (7th to 12th school grade) from each country in 2008. Firstly, an explanatory factor analysis was conducted to identify salient adolescent values from each country. Subsequently, a multiple logistic regression analysis was conducted for each population group to examine the relationship between the identified values and adolescent SRH after controlling for sociodemographic characteristics. We found that benevolence and altruism were positively associated with adolescent SRH in all three population groups. Patriarchy was associated with SRH positively in Chinese yet inversely in Japanese. Success pursuit was inversely associated with SRH in Korean. Policy efforts based on values of communities or social harmony may benefit adolescents’ SRH in these three countries.