新时期我国粮食安全问题研究

粮食安全是国家安全战略的重要组成部分,是保持国民经济健康、持续、快速发展的重要保障。影响我国粮食安全的主要问题多种多样,必须在认真分析的基础上加以解决。确保我国粮食安全的主要对策是要适应新形势,树立新型粮食安全观念;要切实保护耕地,提高农民种粮积极性;因地制宜,不断优化粮食生产的区域布局;以农业科技为支撑,不断提高粮食综合生产能力;深化粮食流通体制改革,建立新型粮食流通体系;加强粮食宏观调控,确保国家粮食安全。     

西安非公有制经济参与西部大发展的思路

西部大开发、西安大发展应有新的思路。大力发展非公有制经济是推动西部大开发、西安大发展的一支非常重要的力量,它对国有经济的战略性调整有着十分重要的作用。放手并支持非公有制经济参与国有企业的改革,为其创造宽松的发展环境,无疑会极大地促进西安经济的良性发展。     

近年来公平与效率关系研究综述

在经济效率大幅度提高的同时,居民收入分配上的差距却日益扩大,已经是一个不争的事实。现阶段,如何科学定位公平与效率二者关系问题,如何把握好个人收入差距的“度”,是摆在我们面前的一个急需在实践中加以妥善解决的重大课题。     

现代公益诉讼产生发展的背景考察及对我国的启示

通过对现代公益诉讼产生并勃兴的社会背景的考察,发现公益诉讼是伴随着经济的迅猛发展引致社会巨大变迁的过程中所必然出现的各种利益不平衡而产生的,其核心推动因素是广泛的公民参与,而司法能动主义和律师的公益辩护是其发展的有力保障。这对于我们构建适合我国国情的公益诉讼制度是有益的启示。     

Analysis of sensitivity and specificity: precise recognition of neutrophils during regeneration of contused skeletal muscle in rats

In this report, we applied the TissueFAXS 200 digital pathological analysis system to rapidly and accurately identify neutrophils during regeneration of contused skeletal muscle, and to provide information for follow-up studies on neutrophils to estimate wound age. Rat injury model was established, and skeletal muscle samples were obtained from the control group and contusion groups at 1, 1.5, 2, 3, 4, and 6 h, as well as at 1, 3, 5, and 15 d post-injury (n = 5 per group). The expression of nuclei and neutrophils was detected by hematoxylin and eosin (HE) staining and immunohistochemical (IHC) staining. A total of 20 injury site areas of 0.25 mm² (0.5 mm × 0.5 mm) were then randomly selected at all time points. A TissueFAXS 200 digital pathological analysis system was used to identify the positive and negative numbers. Knowledge of five professional medical workers were considered the gold standard to measure the false positive rate (FPR), false negative rate (FNR), sensitivity, specificity, and area under the curve (AUC) of receiver operating characteristic (ROC) curves. As a result, with a staining area of neutrophils from 8 µm² to 15 µm², the FPR was 4.28%–12.14%, the FNR was 12.42%–64.08%, the sensitivity was 35.92%–87.58%, the specificity was 87.86%–95.72%, the Youden index was 0.316–0.754, the accuracy was 82.80%–88.30%, and the AUC was 0.771–0.826. The AUC was largest when the cut-off value of the staining area was 12 µm². Our results show that this software-based method is more accurate than the human eye in evaluating neutrophil infiltration. Based on the sensitivity and specificity, neutrophils can be accurately identified during regeneration of contused skeletal muscle. The TissueFAXS 200 digital pathological analysis system can also be used to optimize conditions for different cell types under various injury conditions to determine the optimal cut-off value of the staining area and provide optimal conditions for further study. Furthermore, it will provide evidence for forensic pathology cases.     

Responsibility Determination: Free Will and Legal Responsibility in the Age of Artificial Intelligence

Free will is the foundation of determination of responsibility. Genetic enginnering represented by technologies of gene editing, artificial medical devices and AI have fundamentally challenged the concept of free will and so have significantly influenced determination of legal responsibility. These challenges are fundamental, not instrumental, and can be divided into two aspects in legal philosophy. First, the direct challenge, that is, the emerging technology represented by genetic engineering and artificial narrow intelligence (ANI) has challenged the concept of free will. Second the would-be ultimate challenge, that is, presented by an artificial general intelligence (AGI) agent that is considered to reach humanlevel free will, can be a legal subject, thus taking full legal responsibility. The direct challenge constitutes a new “forgiveness” condition for taking responsibility. The would-be ultimate challenge deserves significant attention, because the concept of free will is not only about human responsibility, but also about human dignity.     

中国证券仲裁制度构建之探讨

本文分析了中国构建证券仲裁制度的可能性,并结合发达国家的实践确定了我国证券仲裁应采用的模式,并设计了专门的证券仲裁程序。     

从和谐校园的特征分析看工会在和谐校园构建中的作用

和谐校园在环境、制度和各种关系协调上表现出一定的内在特征,由此分析,工会在和谐校园构建中,可以通过参与校园文化建设、组织教职工参与民主管理、维护教职工合法权益、承担群众工作任务等发挥独特的作用.     

当前世界经济走势及其对中国的影响

今年上半年,在美国次贷危机继续发酵和油价暴涨等诸多因素的综合影响下,世界主要经济体和全球经济趋缓,通货膨胀加剧。由于困难因素远未缓解,美国经济低速增长还将持续一段时间,发展中国家经济将继续受到一定的拖累。在当前不确定的国际经济金融环境下,中国发展的挑战与机遇并存,只要积极、及时、灵活应对,就能趋利避害,使经济继续保持强劲发展势头。     

以色列反恐政策演变及其评价

以色列建国后,其面临的恐怖主义威胁先后经历了三个不同阶段,与此相适应的以色列反恐政策也先后进行了多次调整。以色列反恐政策体系来自其长期的反恐作战实践,并深受其历史文化经历的影响,具有较强的适应性、综合性以及崇尚“先发制人”等特征。虽然以色列的反恐政策成功地维持了其社会的正常运转,但由于其反恐斗争仅是巴以冲突的一个重要组成部分,故而在巴以冲突得不到解决的情况下,它不仅无法走出诸多反恐“困境”,也难以获得反恐战争的最后胜利。