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How can technology and efficiency alleviate the dilemma of economic growth and carbon emissions in China's industrial economy? A metafrontier decoupling decomposition analysis
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作者 Miao Wang Chao Feng 《Petroleum Science》 SCIE EI CAS CSCD 2024年第2期1415-1428,共14页
This paper attempts to explore the decoupling relationship and its drivers between industrial economic increase and energy-related CO_(2) emissions(ICE). Firstly, the decoupling relationship was evaluated by Tapio ind... This paper attempts to explore the decoupling relationship and its drivers between industrial economic increase and energy-related CO_(2) emissions(ICE). Firstly, the decoupling relationship was evaluated by Tapio index. Then, based on the DEA meta-frontier theory framework which taking into account the regional and industrial heterogeneity and index decomposition method, the driving factors of decoupling process were explored mainly from the view of technology and efficiency. The results show that during2000-2019, weak decoupling was the primary state. Investment scale expansion was the largest reason hindering decoupling process of industrial increase from ICE. Both energy saving and production technology achieved significant progress, which facilitated the decoupling process. Simultaneously, the energy technology gap and production technology gap among regions have been narrowed, and played a role in promoting decoupling process. On the contrary, both scale economy efficiency and pure technical efficiency have inhibiting effects on decoupling process. The former indicates that the scale economy of China's industry was not conducive to improve energy efficiency and production efficiency, while the latter indicates that resource misallocation problem may exist in both energy market and product market. 展开更多
关键词 china's industrial sector Decoupling process Meta-frontier DEA Index decomposition method Driving factors
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Cardiovascular diseases in European ethnic minorities: Beyond the traditional cardiovascular risk factors
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作者 Mohamed Bamoshmoosh 《World Journal of Cardiology》 2024年第3期98-103,共6页
This editorial is intended to be a reflection on cardiovascular disease(CVD)burden in European ethnic minorities.In some European countries,ethnic minority realities,due to their recent appearance,are still to be stud... This editorial is intended to be a reflection on cardiovascular disease(CVD)burden in European ethnic minorities.In some European countries,ethnic minority realities,due to their recent appearance,are still to be studied in depth.The experience of several European countries,where the migration processes started earlier,even more than a century ago,can help by being an example.Many studies have shown that major differences in CVD burden exist not only between countries,but also within the same country when considering different social strata and ethnic groups.The CV risk factors underlying heart disease have been well established.Important epidemiological studies have helped us understand that the underlying causes of heart disease as well as the behaviors that can help prevent them are the same.We are now well aware that CVD should be treated by considering a holistic approach.This is why the social determinants(SDs)of health that may worsen the disease burden or that,vice versa,may improve the treatment,and even more significantly,the prognosis of a patient’s illness should be taken into consideration.For ethnic minority patients,this holistic,hermeneutic approach is of importance.Several SDs of health that influence CVDs have been identified but their relevance for the health of ethnic minorities has not yet been clearly defined.In some European countries,most ethnic minorities are largely also religious minorities.Only a few studies have evaluated the role of religion,which is an important SD that affects the probability of having CV risk factors and diseases.Adolescents,particularly those belonging to the second generation,seem to be the weak link.If we believe that these young people are really citizens of their country of birth,then a way of recognizing their belonging to the community starts from a will to better understand their condition,in order to assist them while they grow physically and mentally.Thinking about safeguarding the health of this population should be more than a health task,rather a goal of social justice. 展开更多
关键词 Cardiovascular diseases Cardiovascular risk factors European ethnic minorities Social determinants of health
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China's Maritime Governance:Practical Evolution and Theoretical Construction
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作者 Cui Ye 《Contemporary International Relations》 2024年第4期26-48,共23页
Increasingly engaged in maritime governance,China has developed its distinct vision and gradually established a complete theoretical system surrounding it.In terms of discourse,China has proposed a collection of conce... Increasingly engaged in maritime governance,China has developed its distinct vision and gradually established a complete theoretical system surrounding it.In terms of discourse,China has proposed a collection of concepts and ideas including a maritime community with a shared future,the 2lst Century Maritime Silk Road,Blue Partnerships,and marine ecological civilization.In terms of connotations,China champions such values as lasting peace,common prosperity,openness and inclusiveness,and cleanness and beautifulness.Exteriorly and interiorly,we can observe the unique character of China's vision concerning maritime governance,which will continue to upgrade and bear fruit in future practices,boosting the development of Chinese maritime governance theories,multilateral maritime cooperation,and ocean-related international legislation.Guided by its vision,China is expected to contribute more to global maritime security and marine ecological civilization. 展开更多
关键词 china's vision of maritime governance global governance marine ecological civilization maritime community with a shared future
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Multi-scenario Simulation and Spatial-temporal Analysis of LUCC in China's Coastal Zone Based on Coupled SD-FLUS Model
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作者 HOU Xiyong SONG Baiyuan +2 位作者 ZHANG Xueying WANG Xiaoli LI Dong 《Chinese Geographical Science》 SCIE CSCD 2024年第4期579-598,共20页
Increased human activities in China's coastal zone have resulted in the depletion of ecological land resources.Thus,conducting current and future multi-scenario simulation research on land use and land cover chang... Increased human activities in China's coastal zone have resulted in the depletion of ecological land resources.Thus,conducting current and future multi-scenario simulation research on land use and land cover change(LUCC)is crucial for guiding the healthy and sustainable development of coastal zones.System dynamic(SD)-future land use simulation(FLUS)model,a coupled simulation model,was developed to analyze land use dynamics in China's coastal zone.This model encompasses five scenarios,namely,SSP1-RCP2.6(A),SSP2-RCP4.5(B),SSP3-RCP4.5(C),SSP4-RCP4.5(D),and SSP5-RCP8.5(E).The SD model simulates land use demand on an annual basis up to the year 2100.Subsequently,the FLUS model determines the spatial distribution of land use for the near term(2035),medium term(2050),and long term(2100).Results reveal a slowing trend in land use changes in China's coastal zone from 2000–2020.Among these changes,the expansion rate of construction land was the highest and exhibited an annual decrease.By 2100,land use predictions exhibit high accuracy,and notable differences are observed in trends across scenarios.In summary,the expansion of production,living,and ecological spaces toward the sea remains prominent.Scenario A emphasizes reduced land resource dependence,benefiting ecological land protection.Scenario B witnesses an intensified expansion of artificial wetlands.Scenario C sees substantial land needs for living and production,while Scenario D shows coastal forest and grassland shrinkage.Lastly,in Scenario E,the conflict between humans and land intensifies.This study presents pertinent recommendations for the future development,utilization,and management of coastal areas in China.The research contributes valuable scientific support for informed,long-term strategic decision making within coastal regions. 展开更多
关键词 land use and land cover change(LUCC) multi-scenario simulation system dynamic-future land use simulation(SD-FLUS)model SSP-RCP scenarios model coupling china's coastal zone
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Cenozoic giant coal-bearing basin belt discovered in China's sea and its adjacent areas 被引量:1
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作者 Gongcheng Zhang Ying Chen +1 位作者 Dongdong Wang Zengxue Li 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2023年第3期101-112,共12页
Sea area is an important area of oil and gas exploration in China.It has been found that China's sea area mainly consists of coal type oil and gas,and the exploration of coal-bearing series source rocks has become... Sea area is an important area of oil and gas exploration in China.It has been found that China's sea area mainly consists of coal type oil and gas,and the exploration of coal-bearing series source rocks has become an important part of oil and gas exploration there.Through years of comprehensive geological research in China's sea area,it has been revealed that it has undergone multiple occurrences of tectonic opening and closing movements in varying degrees in the Paleogene,forming 26 Cenozoic sedimentary basins of various types,such as active continental margin,passive continental margin,transitional continental margin and drift rift basins.In the present study,it is observed for the first time that coal type source rocks are mainly developed in 14 continental margin basins in China's sea area,revealing that a very large C-shaped coal-bearing basin group developed there in the Cenozoic.Next,based on the coupling analysis of paleoclimate,paleobotany,paleogeography and paleostructure,it is observed that there are five coal-forming periods in China's sea area,namely the Paleocene,Eocene,early Oligocene,late Oligocene and Miocene-Pliocene,and the coal-forming age is gradually new from north to south.It is also found that the coal seams in the sea area are mainly developed in three coal-forming environments in Cenozoic,namely delta,fan delta and tidal flat-lagoon.The coal seams developed in different environments are characterized by thin thickness,many layers and poor stability.However,the coal-bearing series source rocks in China's sea area have a wide distribution range,very high thickness and large amount,thus forming a material basis for the formation of rich coal type oil and gas. 展开更多
关键词 coal-bearing basin belt coal-forming period coal-forming sedimentary environment china's sea area
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Two Customs of China's Ethnic Minorities
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《China & The World Cultural Exchange》 1997年第5期47-47,共1页
关键词 Two Customs of China’s Ethnic minorities
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Regional Autonomy of China's Ethnic Minorities
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作者 XIONG LEI 《The Journal of Human Rights》 2002年第4期30-32,共3页
The aggregate population of ethnic minorities has never accounted for more than 9 percent of China’s total, currently approaching 1.3 billion. Yet their development and prosperity have always been high on the agenda ... The aggregate population of ethnic minorities has never accounted for more than 9 percent of China’s total, currently approaching 1.3 billion. Yet their development and prosperity have always been high on the agenda of the leaders of the People’s Republic. One of the first things Chinese leaders did after New China was founded in 1949 was to conduct large-scale studies to identify the country’s ethnic groups and name them properly, based on scientific 展开更多
关键词 MORE Regional Autonomy of China’s Ethnic minorities THAN
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Develop China's Great West——A major move to improve human rights of minorities
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作者 BY YANG FAREN Author: former president and research fellow of the Xinjiang Academy of Social Sciences and now member of the expert advisory group for Xinjiang. 《The Journal of Human Rights》 2004年第5期15-18,共4页
The Great Western China Development Drive launched by China’s Central Authorities at the turn of the century is not only a strategic move to narrow the development gap between the eastern and western parts of the cou... The Great Western China Development Drive launched by China’s Central Authorities at the turn of the century is not only a strategic move to narrow the development gap between the eastern and western parts of the country an harmonious development of the national economy but also a major move for narrowing the development gap among different ethnic groups and further improving human rights of the people, especially minorities. 展开更多
关键词 A major move to improve human rights of minorities Develop China’s Great West than
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China's Ethnic Minorities and Their Own Languages
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作者 LI JINFANG 《The Journal of Human Rights》 2006年第1期24-27,共4页
China has 56 ethnic groups, who speak a total of 120 languages. Chinese, China's official language, is spoken by the Han, Hui and Manethnic groups, and all the other ethnic groups have their own languages. About 15 m... China has 56 ethnic groups, who speak a total of 120 languages. Chinese, China's official language, is spoken by the Han, Hui and Manethnic groups, and all the other ethnic groups have their own languages. About 15 million people speak the Zhuang lan- guage, outnumbering speakers of any other ethnic minority language. Quite a few ethnic minority groups have two or even more spoken languages. Though belonging to the same ethnic group, the ethnic Yaos who live in different places speak four different languages -the Mian, Bunu, Lajia and Yangbu. The ethnic Jingpos also have four different spoken languages the Jingpo, Zaiwa, Langsu and Leqi. 展开更多
关键词 China’s Ethnic minorities and Their Own Languages
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新媒体背景下少数民族动画符码赋能铸牢中华民族共同体意识 被引量:1
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作者 周梅 谭欣 《民族学刊》 北大核心 2024年第1期111-119,132,共10页
少数民族动画是在艺术想象下创作实践而成的文化精神承载物,是中华民族文化符号的具体呈现,少数民族动画对中华民族共同体意识“日常生活层面”的传播有着重要作用。新媒体信息传播方式对文化符码的传播和输出产生了文化多元化、对象多... 少数民族动画是在艺术想象下创作实践而成的文化精神承载物,是中华民族文化符号的具体呈现,少数民族动画对中华民族共同体意识“日常生活层面”的传播有着重要作用。新媒体信息传播方式对文化符码的传播和输出产生了文化多元化、对象多样化、传播复杂化等影响。少数民族动画文化符码作为铸牢中华民族共同体意识的重要媒介和载体,从1949年-2019年经历了族群认同、自我认同、国家认同的发展历程,在新媒体背景下少数民族动画呈现出与大众文化消费市场距离较远、“碎片化”信息传播需要整合、民族文化差异性与共享性需要平衡、动画观众个性化需求需要协调等特点。研究认为,可以从审美层面契合少数民族动画符码的当代向度,使内容与形式符合现代人的审美需求;从观念与价值层面引导少数民族动画符码的价值构建,以文艺形式承载时代精神,价值引导符合时代发展的需求;从情感与记忆层面满足少数民族动画的与时俱进,传递共同民族心理与共同价值观念,拓展少数民族动画媒体宣传力度,增强少数民族动画赋能铸牢中华民族共同体意识的能力。 展开更多
关键词 新媒体 共同体意识 少数民族动画 符码 危机
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基于多元治理的少数民族档案资源主体协同整合模式研究 被引量:3
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作者 王萍 凌茗 宋婧馨 《山西档案》 北大核心 2024年第2期5-11,共7页
少数民族档案资源整合面临资源异构、数量庞大、保存分散的问题。以多元治理理论为基础,通过构建参与主体协同整合模式,解决主体分散割裂问题。对参与多元治理的主体及其特征进行分析,归纳了政府部门主导模式、文化机构主导模式、社会... 少数民族档案资源整合面临资源异构、数量庞大、保存分散的问题。以多元治理理论为基础,通过构建参与主体协同整合模式,解决主体分散割裂问题。对参与多元治理的主体及其特征进行分析,归纳了政府部门主导模式、文化机构主导模式、社会组织主导模式、社会公众参与模式四种少数民族档案资源主体整合模式,在深入分析和比较四者之间的相似性和差异性后,构建了动态性、场景化的少数民族档案资源多元主体协同整合模式。 展开更多
关键词 少数民族档案 多元治理 主体协同整合模式
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认罪认罚从宽制度的再完善:以轻微犯罪治理为场域 被引量:3
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作者 孙道萃 《内蒙古社会科学》 北大核心 2024年第2期122-130,共9页
目前,我国已经进入轻微犯罪时代。通过认罪认罚从宽制度治理轻微犯罪是重要的刑事司法途径。然而,轻微犯罪治理与认罪认罚从宽制度之间仍存在一定的不适性,特别是实体与程序的衔接不畅、治理需求与制度供给的不一致等。因此,应当强化轻... 目前,我国已经进入轻微犯罪时代。通过认罪认罚从宽制度治理轻微犯罪是重要的刑事司法途径。然而,轻微犯罪治理与认罪认罚从宽制度之间仍存在一定的不适性,特别是实体与程序的衔接不畅、治理需求与制度供给的不一致等。因此,应当强化轻微犯罪治理与认罪认罚从宽制度之间的契合度与协同性,以轻微犯罪治理的实际需求为导向,按照刑事一体化的理念,不断完善认罪认罚从宽制度及其相关的实施机制。当前,刑法与认罪认罚从宽制度之间的制度性“沟壑”亟待填补。为此,既需要调试现行刑法理论的互斥部分,也要重新审视刑法总则相关规定的适宜性和有效性,进而及时启动必要的实体性立法修正程序。《刑事诉讼法》修改在即,整合性的程序回应也势在必行,独立的认罪认罚从宽协商程序、更加健全的量刑协商机制等均是轻罪治理的主要关切点。 展开更多
关键词 轻微犯罪 认罪认罚从宽制度 实体与程序 供需协同 立法完善
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云南省特有少数民族具备的膳食营养知识素养分析
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作者 阮元 李娟娟 +4 位作者 杨彦玲 万青青 赵江 张强 刘志涛 《昆明医科大学学报》 CAS 2024年第9期24-29,共6页
目的分析2018年1月至2020年8月云南省基诺族、景颇族、德昂族、阿昌族、基诺族、布朗族和普米族6个特有少数民族具备的膳食营养知识素养情况及影响因素。方法采用多阶段分层整群抽样在云南省少数民族聚居地,对3145人年龄≥18岁少数民族... 目的分析2018年1月至2020年8月云南省基诺族、景颇族、德昂族、阿昌族、基诺族、布朗族和普米族6个特有少数民族具备的膳食营养知识素养情况及影响因素。方法采用多阶段分层整群抽样在云南省少数民族聚居地,对3145人年龄≥18岁少数民族进行膳食营养知识知晓情况调查,统计分析运用SAS9.4进行χ^(2)检验和非条件Logistic回归分析。结果3145人≥18岁云南省特有少数民族17道膳食营养知识得分中位数为8.7分。具备膳食营养知识素养的比例为8.3%,不同民族具备膳食营养知识素养比例存在统计学差异(χ^(2)=149.974,P<0.0001),布朗族最低仅为0.2%。经非条件Logistic回归分析显示,初中或高中、大专及以上文化程度者更具备膳食营养知识素养(OR=1.992、OR=3.073,P<0.05,参照组为小学及以下文化)。基诺族、德昂族、布朗族、普米族更不具备膳食营养知识素养(OR=0.105、OR=0.366、OR=0.010、OR=0.341,P<0.05,参照组为阿昌族)。结论云南省6个特有少数民族≥18岁人群具备膳食营养知识素养低于人群平均水平,建议加强普及膳食营养知识,特别是应该加强低文化程度特有少数民族的膳食营养知识宣传教育,从而提高膳食营养知识素养。 展开更多
关键词 膳食营养知识 态度 素养 影响因素 少数民族
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从消极惩罪到积极治理:中国特色轻罪治理体系的反思与完善 被引量:1
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作者 黎宏 袁方 《中州学刊》 北大核心 2024年第4期74-83,共10页
当今中国社会的犯罪现象正在经历从重罪到轻罪的重大变化,我国轻罪治理体系也应与时俱进地进行完善。这要求我们取轻罪之长,避轻罪之短。首先,要明确轻罪的定义,可以法定刑3年有期徒刑为上限、以处带有保安处分性质的限制或剥夺人身自... 当今中国社会的犯罪现象正在经历从重罪到轻罪的重大变化,我国轻罪治理体系也应与时俱进地进行完善。这要求我们取轻罪之长,避轻罪之短。首先,要明确轻罪的定义,可以法定刑3年有期徒刑为上限、以处带有保安处分性质的限制或剥夺人身自由措施为下限,这一轻罪概念既契合我国刑事立法和司法的现实,也是面向未来轻罪立法的一种前瞻性考虑。然后,对轻罪扩张现象进行反思,厘清轻罪扩张带来的正面功能和负面效应,指明其具有回应民意、完善立法、规范行为的优势,也揭示其简化司法、异化刑罚、附随后果过剩的缺陷。在此基础上,对我国轻罪治理体系进行完善,在实体层面依据《刑法》第13条的但书规定和第37条的定罪免刑规定,建立多元的轻罪处遇模式;在程序法层面贯彻“三分原则”;在附随后果上严格限制适用主体、对象和内容;在前科消灭上逐步建立犯罪记录封存、注销和复权制度。这样多措并举,推动我国轻罪治理体系从消极惩罪向积极治理的现代化转型。 展开更多
关键词 轻罪治理 风险社会 刑法处遇 犯罪附随后果 前科消灭
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少数民族老年人认知功能障碍与居住地改变相关性的研究进展
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作者 张蕾 徐梅 +3 位作者 龙晶晶 米凯娜 颜蓉 赵忠 《神经损伤与功能重建》 2024年第5期296-298,共3页
我国少数民族与汉族人群的认知功能障碍患病率存在差异。老年人居住地改变可能造成其认知功能的改变,其原因有社会人文环境改变、地理环境改变、心理应激等方面。本文对相关研究进展进行综述,以便预防和减缓少数民族人群认知功能障碍的... 我国少数民族与汉族人群的认知功能障碍患病率存在差异。老年人居住地改变可能造成其认知功能的改变,其原因有社会人文环境改变、地理环境改变、心理应激等方面。本文对相关研究进展进行综述,以便预防和减缓少数民族人群认知功能障碍的发生发展。 展开更多
关键词 少数民族 认知障碍 居住地改变
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吉林省少数民族地区畜牧业发展助力乡村产业振兴研究——以伊通满族自治县为例 被引量:1
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作者 张晓辉 高泽浩 崔翔宇 《长春大学学报》 2024年第5期1-7,共7页
随着乡村振兴政策的落实,各地区开始发展产业以助推乡村发展。产业发展为乡村振兴提供了坚实的物质动力,如果产业发展势弱,那么乡村振兴如同无本之木,也就无法从根本上实现乡村振兴目标,而且影响实现脱贫攻坚的进程。目前,吉林省伊通满... 随着乡村振兴政策的落实,各地区开始发展产业以助推乡村发展。产业发展为乡村振兴提供了坚实的物质动力,如果产业发展势弱,那么乡村振兴如同无本之木,也就无法从根本上实现乡村振兴目标,而且影响实现脱贫攻坚的进程。目前,吉林省伊通满族自治县以乡村振兴为助推器发展本地特色产业,不仅能够带动农民增收致富,也有助于营造更美丽宜居的乡村环境。这些举措将有利于推动乡村经济的稳步提升,促使更多的人脱贫致富,实现乡村产业振兴。 展开更多
关键词 吉林省 少数民族地区 畜牧业 乡村产业振兴
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困境与破解:强制报告制度的法社会学分析——以家庭暴力侵害未成年人案件为视角 被引量:1
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作者 陈永峰 张艾嘉 《山西警察学院学报》 2024年第2期46-53,共8页
法律与社会发展不可分离。未成年人保护不仅是一个法律问题,更是一个社会问题。法律虽为社会控制的高级手段,亦不可脱离社会独自发挥作用,需与道德规范、社会价值观、文化等其他社会控制手段互为表里。从法社会学的研究视角出发,家庭暴... 法律与社会发展不可分离。未成年人保护不仅是一个法律问题,更是一个社会问题。法律虽为社会控制的高级手段,亦不可脱离社会独自发挥作用,需与道德规范、社会价值观、文化等其他社会控制手段互为表里。从法社会学的研究视角出发,家庭暴力侵害未成年人案件强制报告制度具有多种实践价值,但该制度在一定程度上冲击了部分报告义务主体和社会公众的固有思想观念,致使部分报告义务主体履行强制报告义务缺乏精神动力,阻碍了该制度在实践中的顺利运行。应从回应社会发展需求、关注特殊群体权益保障、加强社会控制、培育和塑造现代公民等方面,借助其他社会控制手段化解思想观念冲突,破解强制报告制度的适用困境,进一步提高强制报告制度在家庭暴力侵害未成年人案件中的适用实效。 展开更多
关键词 强制报告制度 未成年人 家庭暴力 法律社会化 社会控制
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西准噶尔构造带包古图地层小区上泥盆统红山梁组的建立及地质意义 被引量:1
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作者 李永军 黄家瑄 +5 位作者 朱钊 王绪龙 彭南赫 郑孟林 杨高学 张越迁 《地质学报》 EI CAS CSCD 北大核心 2024年第4期1025-1036,共12页
西准噶尔构造带包古图地层小区白碱滩北红山梁剖面上新发现一套晚泥盆世红色“硅质岩、粉砂质硅质岩、凝灰质硅质岩”海相沉积组合,与上覆包古图组深灰色—灰黑色含碳粉砂岩呈整合接触。经区域对比确认,该套地层显著有别于研究区乃至整... 西准噶尔构造带包古图地层小区白碱滩北红山梁剖面上新发现一套晚泥盆世红色“硅质岩、粉砂质硅质岩、凝灰质硅质岩”海相沉积组合,与上覆包古图组深灰色—灰黑色含碳粉砂岩呈整合接触。经区域对比确认,该套地层显著有别于研究区乃至整个西准噶尔构造带地层分区已发现的全部上泥盆统各组岩石地层,符合“野外可识别、界面可区别、区域可对比、图面可表达”的原则,据此新建红山梁组。本次于红山梁组枕状玄武岩、玄武岩、安山岩中分别获得365.9±5.0Ma、370.6±7.4Ma和374.6±3.6Ma的LA-ICP-MS锆石U-Pb年龄,佐证其时代为晚泥盆世。红山梁组与包古图组连续沉积之确认,消除了包古图组老于希贝库拉斯组这一存疑,建立了完整的下石统地层序列,新增了包古图地层小区泥盆纪的沉积记录,为区域沉积与构造演化研究提供了新资料。 展开更多
关键词 上泥盆统红山梁组 海相红色硅质岩组合 新建岩石地层单位 锆石U-Pb年龄 包古图地层小区 西准噶尔构造带
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数字化转型、信息透明度与权益资本成本
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作者 盛明泉 何飞阳 《重庆科技学院学报(社会科学版)》 2024年第1期31-42,53,共13页
本研究基于2009年至2021年中国上市公司数据,实证分析数字化转型对企业权益资本成本的影响。通过实证分析研究发现,企业数字化转型能够显著降低权益资本成本。进一步分析发现,信息透明度在企业数字化转型与权益资本成本之间起部分中介... 本研究基于2009年至2021年中国上市公司数据,实证分析数字化转型对企业权益资本成本的影响。通过实证分析研究发现,企业数字化转型能够显著降低权益资本成本。进一步分析发现,信息透明度在企业数字化转型与权益资本成本之间起部分中介效应。通过研究数字化转型与权益资本成本的作用机制,为企业治理与合理配置资源提供借鉴。 展开更多
关键词 数字化转型 信息透明度 权益资本成本 企业治理
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回族及维吾尔族圆头精子症患者的基因诊断、精子超微结构观察和辅助生殖结局分析
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作者 刘翛然 武爽 韩锐 《临床检验杂志》 CAS 2024年第2期93-99,共7页
目的探讨2例少数民族(P1回族、P2维吾尔族)圆头精子症患者的临床表型、精子特点、遗传学病因以及辅助生殖结局。方法分析2例少数民族圆头精子症患者的临床资料和各种精液检查参数,观察精子超微结构,并利用全外显子检测技术和qPCR检测分... 目的探讨2例少数民族(P1回族、P2维吾尔族)圆头精子症患者的临床表型、精子特点、遗传学病因以及辅助生殖结局。方法分析2例少数民族圆头精子症患者的临床资料和各种精液检查参数,观察精子超微结构,并利用全外显子检测技术和qPCR检测分析患者的遗传学病因,采用卵胞质内单精子注射联合卵母细胞激活技术(ICSI+AOA)进行辅助生殖治疗,并观察其助孕结局。结果2例患者均存在DPY19L2基因109681 bp纯合缺失,其中P2患者的DPY19L2基因缺失来源于近亲结婚的父母。P1患者精子活力低下,精子DNA碎片率高,精子形态为100%圆头精子,电镜下发现精子顶体缺失,同时存在质膜、线粒体和微管等超微结构缺陷;P2患者精子活力及精子DNA碎片率均正常,精子形态为100%圆头精子,电镜下观察发现精子主要缺陷为头部小而圆伴随顶体缺失,质膜、线粒体和微管等细胞器结构损伤与超微结构缺陷少见。2例患者夫妇均接受ICSI+AOA助孕,ICSI受精率P1患者夫妇为62.5%,P2患者夫妇为75%,均成功获得临床妊娠。结论DPY19L2基因异常在不同民族背景的圆头精子症患者中都是主要的致病遗传学原因。圆头精子可同时存在质膜、线粒体和微管等细胞器结构损伤与超微结构缺陷。ICSI+AOA是圆头精子症患者的有效辅助生殖治疗。 展开更多
关键词 少数民族 圆头精子症 DPY19L2 卵胞质内单精子注射 卵母细胞激活技术
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