骨龄自动化评估的研究进展

骨龄是反映人体生长发育的一项重要指标,能够较为客观地反映个体生长发育水平及成熟度。传统的人工骨龄评估通常是将左手腕X线片与参考标准进行比较,从而获得相应的骨龄值,该方法既耗时又存在观察者间的差异。近年来,随着计算机科学的不断发展,促使骨龄评估开始由传统的人工评估向自动化评估转变。虽然骨龄自动化评估的研究已相当多,但大部分仍处于实验阶段。本文综述了近年来国内外学者在骨龄自动化评估方面的相关研究与进展,以期为相关研究人员提供参考与研究思路。     

新冠肺炎疫情防控中的“志愿者+社区社会组织”模式服务效力及其反思

在新冠肺炎疫情期间,社区的“志愿者+社区社会组织”实务模式在防控疫情蔓延、平缓居民心态、链接生活物资等方面发挥了重要作用。从志愿者参与途径看,“志愿者+社区社会组织”服务实践主要体现为价值取向中的个体主动、从众压力下的群体驱动、基于科层权威的单位组织、社区自治组织发动的“网格+志愿服务”、注重多元主体协同的混合五种具体模式,并在防疫工作中发挥了各自效力。该实务模式尚存志愿者和社区社会组织工作人员的定位分化、志愿服务风险系数高、志愿者疫情防控能力不足等突出问题。为推进志愿服务参与社区社会组织的疫情防控效率,须明晰组织与志愿者之间的合作基础,实施志愿服务的成本收益分析,筛选合适的志愿服务模式,总结疫情防控的基本经验,推动志愿服务的制度化建设。     

韧性视角下现代城市整体性风险防控问题研究

现代城市因人口聚居、建筑密集、活动复杂而日益成为风险中心,呈现出复合性、联动性、叠加性、扩散性、隐蔽性增大等整体性风险。本文基于韧性视角,引入"韧性城市"概念,剖析了现代城市整体性风险防控实践的六大盲点和弊端,并分别从空间、时间和层级三个维度提出了韧性城市风险治理的范式,梳理出"都市群-城镇带-生活圈"防范风险扩散、"灾前预警-灾中应急-灾后恢复"阻遏风险延递、"宏观搭台-中观定标-微观落地"化解风险叠加的具体策略。     

试论习近平对“党校姓党”的系统思考

习近平总书记从新时代党的建设总体布局、全面从严治党、坚持马克思主义指导地位、维护党校形象的高度阐述了坚持党校姓党的重大意义。习近平不仅系统回答了坚持党校姓党的意义(为什么),还深刻阐明了党校姓党的"姓马""姓共"的内涵(是什么)、回答了坚持党校姓党的途径、方法(怎样做),以党校姓党的根本原则为基础,构建了具有思想观念、价值标准引领性的党校建设话语体系。     

“孟不印尼”合作倡议及其发展趋势

"孟不印尼"(BBIN)合作倡议是由印度发起的一个南亚东北部次区域合作倡议。目的是绕开长期被印巴矛盾拖累的南盟,通过在印度东部、孟加拉国、尼泊尔和不丹之间建立一个涉及公路、铁路、内河运输、航空和电力网络的次区域联通体系,推动南亚东部次区域一体化进程。目前,"孟不印尼"倡议的里程碑"机动车协议"已经达成但尚未完全生效。铁路联通协议开始讨论并已有前期收获,其他领域尚未进入正式谈判阶段。"孟不印尼"合作倡议体现了相关国家和地区对互联互通的渴望与要求,符合该地区的长远利益。印度试图借此解决其东北部的交通瓶颈问题,巩固其南亚交通枢纽的地位,并试图在更大地理范围内扩大印度的地缘优势。但是,这一倡议受到印度国家能力的限制以及与其他成员国之间复杂关系的影响。一方面,印度东部地区经济发展水平低下,不足以成为吸引周边国家的经济发动机。另一方面,BBIN国家经济发展水平相近,经济结构高度相似,经济互补性有限。成员国从BBIN倡议中获得的潜在收益,可能会不如预期,将挫伤相关国家的积极性。再加上资金保障不力、管理机制对接困难,BBIN的推进将会比较困难。     

大国战略竞争与美国对华技术政策变迁

世界政治领导国的对外技术政策很大程度上源于应对大国战略竞争的需要。当美国面临直接、迫切的大国战略竞争压力时,更愿意通过放宽技术进口和出口限制来争取合作者、应对竞争者,即"利用强者打败更强者"。自20世纪70年代以来,美国对华技术政策经历了从逐步放松再到加强限制这一过程。苏联的安全竞争压力迫使美国在加强对苏技术出口限制的同时,放宽对华技术出口限制。日本的经济竞争压力促使美国在加强对日技术进口限制的同时,放宽对华技术进口限制。应对直接、迫切的大国战略竞争压力,会促使世界政治的领导国更重视当期利益,同时也为潜在竞争者的成长提供机会。而当苏联和日本对美国构成的大国战略竞争压力逐渐褪去时,美国对华技术政策再度面临调整压力,以致于今为甚,通过发起对华贸易战,打压中国高新技术产业,全面收紧了对华高技术进出口限制。美国的技术竞争将是今后很长时间中国技术进步难以绕过的阻碍。     

Parental Alienation in U.S. Courts, 1985 to 2018

Courts have been dealing with alienating behaviors in high conflict family litigation for hundreds of years. Experts in the behavioral sciences have been writing about mothers and fathers manipulating their children to disparage the other parent for more than seventy years. But in the last two decades some social scientists and legal professionals have questioned the legitimacy of parental alienation as a concept and its admissibility in child abuse and child custody litigation. This study was designed to examine the extent to which courts in the United States have found the concept of parental alienation material, probative, relevant and admissible. Thirty‐four years of cases were found with a WESTLAW query and analyzed. Cases were selected for study only if the record reflected that a judge or an independent expert found the concept of parental alienation to be of value in the litigation. Results illustrate increasing awareness of the concept and document its admissibility in every one of the United States. The numbers, sex of the alienating parent and prevalence of significant custody changes are discussed. Limitations inherent in this form of quantitative analysis are also discussed with recommendations for future research.     

疫情防控中的征用补偿:适用范围的思考

疫情防控过程中大量进行的政府征用面临着疫情过后补偿机制的落实任务。厘定征用补偿机制的适用范围成为首要课题。就规范框架所展开的征用补偿机制而言,需要排除"名为征用、实为征收"和"由征用转化而成的征收",并特殊处理国有资产的征用问题。在可能扩充的范围上,可以考虑"名为限制性措施、实为征用"和人力、服务等非有形物的征用。同时,征用导致特定主体的额外"特别牺牲",以及在平台经济模式下电商平台是否可能构成新的征用样态,也值得关注。     

Brexit and the British Constitution: Reflections on the Last Three years and the Next Fifty

The decision to leave the EU provoked the biggest constitutional crisis of recent British history. The referendum—a device for circumventing the parliamentary process—was followed by conflict between a minority government and a majority of MPs unwilling to leave the EU without satisfactory alternative arrangements. The courts, drawn into this conflict, upheld conventions that sustain the authority of Parliament and restrain the despotic power of ministers. The reaction of members of the current government was to take disreputable and anti-democratic positions against both the Speaker of the House of Commons and the courts. They now have a sufficient majority in Parliament to resume adherence to constitutional conventions and restore a political culture of debate and tolerance, but they show little sign of doing so, and there is a risk that they will do irreparable damage to the political culture that underpins democracy.     

Critical Misunderstandings: Ineffective International Governance and the UK Nuclear Industry

In 2017, significant media and political interest was sparked by the UK decision to leave Euratom, the European Atomic Energy Community. While such interest in nuclear matters has to be welcomed, the apparent lack of knowledge displayed in the regulatory governance of the UK nuclear industry is disquieting. This article therefore offers an overview of the publicly funded UK nuclear industry and its regulatory governance including its links with European and global nuclear agencies to inform the debate and to identify critical issues in need of resolution.