This study contests the prevalent perception of graffiti writing,especially tagging and bombing,as meaningless vandalism.It contends that graffiti is a form of expression with intrinsic political implications.Leveragi...This study contests the prevalent perception of graffiti writing,especially tagging and bombing,as meaningless vandalism.It contends that graffiti is a form of expression with intrinsic political implications.Leveraging the notion of spatial justice and Jacques Ranciere's philosophy,I demonstrate how graffiti reclaims urban visibility against the commercial monopoly of visibility in public spaces and challenges the inequitable allocation of opportunities for self-expression in modern cities.Despite writers'common denial of political motives,their actions may be interpreted as manifestations of resistance within wider sociospatial conflicts.This study situates grffti within discussions of political art,spatial commodification,and everyday resistance,proposing a normative framework for viewing the art of the urban signature as an activity that redefines"the community that speaks."展开更多
《公共行政评论》(Journal of Public Administration,JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标准...《公共行政评论》(Journal of Public Administration,JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标准,以学术品质为用稿标准,向国内外学术界、实务界热忱征集言之有物、论之有据、符合学术规范、遵守学术道德的论文、理论综述、书评、评论和博士学位论文摘要。展开更多
《公共行政评论》(Journal of Public Administration, JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标...《公共行政评论》(Journal of Public Administration, JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标准,以学术品质为用稿标准,向国内外学术界、实务界热忱征集言之有物、论之有据、符合学术规范、遵守学术道德的论文、理论综述、书评、评论和博士学位论文摘要。展开更多
《公共行政评论》(Journal of Public Administration,JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标准...《公共行政评论》(Journal of Public Administration,JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标准,以学术品质为用稿标准,向国内外学术界、实务界热忱征集言之有物、论之有据、符合学术规范、遵守学术道德的论文、理论综述、书评、评论和博士学位论文摘要。展开更多
As a crucial process in the coordinated strikes of unmanned aerial vehicles(UAVs), weapon-target assignment is vital for optimizing the allocation of available weapons and effectively exploiting the capabilities of UA...As a crucial process in the coordinated strikes of unmanned aerial vehicles(UAVs), weapon-target assignment is vital for optimizing the allocation of available weapons and effectively exploiting the capabilities of UAVs. Existing weapon-target assignment methods primarily focus on macro cluster constraints while neglecting individual strategy updates. This paper proposes a novel weapon-target assignment method for UAVs based on the multi-strategy threshold public goods game(PGG). By analyzing the concept mapping between weapon-target assignment for UAVs and multi-strategy threshold PGG, a weapon-target assignment model for UAVs based on the multi-strategy threshold PGG is established, which is adaptively complemented by the diverse cooperation-defection strategy library and the utility function based on the threshold mechanism. Additionally, a multi-chain Markov is formulated to quantitatively describe the stochastic evolutionary dynamics, whose evolutionary stable distribution is theoretically derived through the development of a strategy update rule based on preference-based aspiration dynamic. Numerical simulation results validate the feasibility and effectiveness of the proposed method, and the impacts of selection intensity, preference degree and threshold on the evolutionary stable distribution are analyzed. Comparative simulations show that the proposed method outperforms GWO, DE, and NSGA-II, achieving 17.18% higher expected utility than NSGA-II and reducing evolutionary stable times by 25% in large-scale scenario.展开更多
云南猝死综合征（Yunnan sudden death syndrome，YSDS）是一种每年6～9月份发生在云南省中部和西北部海拔1815～2225 m的山区、半山区，以突然发病并死亡为特征且病因不明的疾病。该病以青壮年为主，女性多于男性，傈僳族、彝族和苗族...云南猝死综合征（Yunnan sudden death syndrome，YSDS）是一种每年6～9月份发生在云南省中部和西北部海拔1815～2225 m的山区、半山区，以突然发病并死亡为特征且病因不明的疾病。该病以青壮年为主，女性多于男性，傈僳族、彝族和苗族发病率较高，具有家庭聚集性，临床表现多样，病理学特点缺乏特异性，发病原因与卫生、经济条件、硒铬微量元素缺乏、柯萨奇B组病毒感染、食用蘑菇及当地特殊地质条件相关。本文综述了YSDS的流行病学特征、临床表现、病理性特点、病因研究及假说，以期对YSDS进一步研究提供线索。展开更多
考虑到对害虫的有效防治及安全使用等因素,世界卫生组织（WHO）在公布的《用于控制公共卫生害虫的农药及其应用》（Pesticides and Their Application for the Control of Vectors and Pests of Public Health Importance）中,系统介绍...考虑到对害虫的有效防治及安全使用等因素,世界卫生组织（WHO）在公布的《用于控制公共卫生害虫的农药及其应用》（Pesticides and Their Application for the Control of Vectors and Pests of Public Health Importance）中,系统介绍了防治蚊、蝇、蜚蠊、鼠的农药品种及其使用方法，展开更多
China Coal Society(CCS)and Springer have announced that they will launch a new authoritative journal with a total dedication on coal science and mining engineering.The new journal,International Journal of Coal Science...China Coal Society(CCS)and Springer have announced that they will launch a new authoritative journal with a total dedication on coal science and mining engineering.The new journal,International Journal of Coal Science and Mining Engineering(JCSME)will be launched in early 2014.JCSME aims to be a peer-reviewed academic OA journal focusing on key topics of coal scientific research and mining development.展开更多
学术期刊是学术成果发表与交流的重要媒介。美国英文学术期刊The Public Historian在办刊过程中,秉持特色化、国际化、社会化的办刊宗旨,取得了较大成功。本文运用拉斯韦尔5W传播模式对其传播路径、效果等因素进行分析,并指出The Public...学术期刊是学术成果发表与交流的重要媒介。美国英文学术期刊The Public Historian在办刊过程中,秉持特色化、国际化、社会化的办刊宗旨,取得了较大成功。本文运用拉斯韦尔5W传播模式对其传播路径、效果等因素进行分析,并指出The Public Historian对我国学术期刊国际化发展的启示。展开更多
文摘This study contests the prevalent perception of graffiti writing,especially tagging and bombing,as meaningless vandalism.It contends that graffiti is a form of expression with intrinsic political implications.Leveraging the notion of spatial justice and Jacques Ranciere's philosophy,I demonstrate how graffiti reclaims urban visibility against the commercial monopoly of visibility in public spaces and challenges the inequitable allocation of opportunities for self-expression in modern cities.Despite writers'common denial of political motives,their actions may be interpreted as manifestations of resistance within wider sociospatial conflicts.This study situates grffti within discussions of political art,spatial commodification,and everyday resistance,proposing a normative framework for viewing the art of the urban signature as an activity that redefines"the community that speaks."
文摘《公共行政评论》(Journal of Public Administration,JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标准,以学术品质为用稿标准,向国内外学术界、实务界热忱征集言之有物、论之有据、符合学术规范、遵守学术道德的论文、理论综述、书评、评论和博士学位论文摘要。
文摘《公共行政评论》(Journal of Public Administration, JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标准,以学术品质为用稿标准,向国内外学术界、实务界热忱征集言之有物、论之有据、符合学术规范、遵守学术道德的论文、理论综述、书评、评论和博士学位论文摘要。
文摘《公共行政评论》(Journal of Public Administration,JPA)采用严格的匿名评审制度,致力于为国内外所有有志于公共管理研究的人士构建平等的交流平台,营造一个温暖的精神家园。现不拘作者专业、身份与地域,以聚焦公共管理领域为征稿标准,以学术品质为用稿标准,向国内外学术界、实务界热忱征集言之有物、论之有据、符合学术规范、遵守学术道德的论文、理论综述、书评、评论和博士学位论文摘要。
基金supported by the National Natural Science Foundation of China (No. 62073267)。
文摘As a crucial process in the coordinated strikes of unmanned aerial vehicles(UAVs), weapon-target assignment is vital for optimizing the allocation of available weapons and effectively exploiting the capabilities of UAVs. Existing weapon-target assignment methods primarily focus on macro cluster constraints while neglecting individual strategy updates. This paper proposes a novel weapon-target assignment method for UAVs based on the multi-strategy threshold public goods game(PGG). By analyzing the concept mapping between weapon-target assignment for UAVs and multi-strategy threshold PGG, a weapon-target assignment model for UAVs based on the multi-strategy threshold PGG is established, which is adaptively complemented by the diverse cooperation-defection strategy library and the utility function based on the threshold mechanism. Additionally, a multi-chain Markov is formulated to quantitatively describe the stochastic evolutionary dynamics, whose evolutionary stable distribution is theoretically derived through the development of a strategy update rule based on preference-based aspiration dynamic. Numerical simulation results validate the feasibility and effectiveness of the proposed method, and the impacts of selection intensity, preference degree and threshold on the evolutionary stable distribution are analyzed. Comparative simulations show that the proposed method outperforms GWO, DE, and NSGA-II, achieving 17.18% higher expected utility than NSGA-II and reducing evolutionary stable times by 25% in large-scale scenario.
文摘云南猝死综合征（Yunnan sudden death syndrome，YSDS）是一种每年6～9月份发生在云南省中部和西北部海拔1815～2225 m的山区、半山区，以突然发病并死亡为特征且病因不明的疾病。该病以青壮年为主，女性多于男性，傈僳族、彝族和苗族发病率较高，具有家庭聚集性，临床表现多样，病理学特点缺乏特异性，发病原因与卫生、经济条件、硒铬微量元素缺乏、柯萨奇B组病毒感染、食用蘑菇及当地特殊地质条件相关。本文综述了YSDS的流行病学特征、临床表现、病理性特点、病因研究及假说，以期对YSDS进一步研究提供线索。
文摘考虑到对害虫的有效防治及安全使用等因素,世界卫生组织（WHO）在公布的《用于控制公共卫生害虫的农药及其应用》（Pesticides and Their Application for the Control of Vectors and Pests of Public Health Importance）中,系统介绍了防治蚊、蝇、蜚蠊、鼠的农药品种及其使用方法，
文摘China Coal Society(CCS)and Springer have announced that they will launch a new authoritative journal with a total dedication on coal science and mining engineering.The new journal,International Journal of Coal Science and Mining Engineering(JCSME)will be launched in early 2014.JCSME aims to be a peer-reviewed academic OA journal focusing on key topics of coal scientific research and mining development.
文摘学术期刊是学术成果发表与交流的重要媒介。美国英文学术期刊The Public Historian在办刊过程中,秉持特色化、国际化、社会化的办刊宗旨,取得了较大成功。本文运用拉斯韦尔5W传播模式对其传播路径、效果等因素进行分析,并指出The Public Historian对我国学术期刊国际化发展的启示。
