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绳索救援中主保及地锚系统特定状态的安全分析 被引量:2
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作者 林静 《今日消防》 2021年第11期10-13,共4页
主保系统一直都是最流行的双绳救援系统,而地锚系统是其他系统的末端。采用地锚系统连接主保系统是针对用于河滩、沼泽等山水交界泥地救援的常见手段。不管是单纯的绳索救援还是水域救援中引导舟艇,在该方法中,保护系统的形态决定了系... 主保系统一直都是最流行的双绳救援系统,而地锚系统是其他系统的末端。采用地锚系统连接主保系统是针对用于河滩、沼泽等山水交界泥地救援的常见手段。不管是单纯的绳索救援还是水域救援中引导舟艇,在该方法中,保护系统的形态决定了系统的安全与否。文章就一种采用埋地式锚固系统搭配挤压式止坠器(EN 353-2标准)做保护的特殊情况指出其致命隐患。 展开更多
关键词 绳索救援 主保系统 地锚系统 隐患
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我的主保-若望
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作者 向杨 《中国天主教》 北大核心 2000年第6期33-33,共1页
关键词 《我的主保——若望》 诗歌 艺术风格 向杨
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基于流域经济与环境保护协调发展的路径探讨 被引量:2
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作者 刘天阳 《环境与发展》 2018年第1期230-231,共2页
本文首先简要分析了流域协调的最终目标,探讨了流域协调的二元特性及制约因素,最后提出了构建流域协调机制的有效途径,望能以此为相关研究提供些许参考。
关键词 流域经济 环境 协调发展 路径
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基于频域多目标测向的星载赋形天线调零算法
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作者 张娟 陶海红 孙海浪 《系统工程与电子技术》 EI CSCD 北大核心 2009年第7期1592-1595,共4页
为了保证通信卫星在人为电磁干扰及复杂电磁环境下的正常工作,给出了一种用于星载赋形天线的频域多干扰目标测向及调零方法。该方法首先采用频域多目标测向算法实现多干扰源的方向估计;然后基于估计出的干扰源到达方向,采用带主波束保... 为了保证通信卫星在人为电磁干扰及复杂电磁环境下的正常工作,给出了一种用于星载赋形天线的频域多干扰目标测向及调零方法。该方法首先采用频域多目标测向算法实现多干扰源的方向估计;然后基于估计出的干扰源到达方向,采用带主波束保形的波束置零算法,以达到对主波束保形和多个干扰进行抑制的目的,较好地兼顾了调零深度与主波束保形效果这两个方面;最后分析了有多个干扰时该方法的性能。仿真结果和性能分析验证了该方法的有效性和可行性。 展开更多
关键词 频域多目标测向 波束 调零深度 波束置零
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圣母的微笑
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作者 罗晓平 《中国天主教》 2009年第5期53-53,共1页
三次到武汉中南修院教书,给我留下美好回忆的事情太多了,但最让我难忘的是修院美丽的花园里矗立着的微笑显灵圣母塑像。
关键词 圣母 修道院 主保
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代位权诉讼与代位申请执行之探微
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作者 孙青平 《周口师范高等专科学校学报》 2002年第1期86-88,共3页
代位权是一种实体权利,其实现方式分两种:代位权诉讼和代位申请执行,二者在我国都有所规定。代位权诉讼有其自身的优势,而代位申请执行由于在我国民事诉讼程序设置中的不当,存在一定的缺陷。为此,在强制执法的立法设置上应考虑到与实体... 代位权是一种实体权利,其实现方式分两种:代位权诉讼和代位申请执行,二者在我国都有所规定。代位权诉讼有其自身的优势,而代位申请执行由于在我国民事诉讼程序设置中的不当,存在一定的缺陷。为此,在强制执法的立法设置上应考虑到与实体法的一致性,重新审视代位申请执行是否有存在的必要。 展开更多
关键词 代位权 代位权诉讼 代位申请执行 中国 民事诉讼程序 债务制度
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基于多目标遗传算法的星载天线干扰抑制算法 被引量:1
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作者 权琳 陶海红 廖桂生 《雷达科学与技术》 2007年第6期470-476,共7页
提出了一种基于多目标遗传算法的星载天线干扰抑制算法,该算法在射频端通过调节权系数进行输出功率判决从而实现波束形成。文中引入多目标优化问题Pareto最优解的概念,采用了无支配性排序遗传算法(NSGA-Ⅱ)来搜索干扰调零权值的Pareto... 提出了一种基于多目标遗传算法的星载天线干扰抑制算法,该算法在射频端通过调节权系数进行输出功率判决从而实现波束形成。文中引入多目标优化问题Pareto最优解的概念,采用了无支配性排序遗传算法(NSGA-Ⅱ)来搜索干扰调零权值的Pareto最优解集,充分发挥这种先进多目标遗传算法的高内在并行性、强鲁棒性以及能够不断优化最优解集的优势,较好地兼顾了星载天线干扰抑制时干扰抑制深度与主波束保形这一对矛盾问题。最后提出了归一化双目标函数加权选择最优调零权的方法从Pareto最优解集中选择一组符合决策者偏好的最优调零权。计算机仿真实验证明,文中所提出的算法具有较好的干扰抑制能力和主波束保形效果。 展开更多
关键词 抗干扰 波束 PARETO最优解 无支配性排序遗传算法 最优调零权选择
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Long-term outcomes of PCI vs. CABG for ostial/midshafl lesions in unprotected left main coronary artery 被引量:3
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作者 Cheng-Long GUO Xian-Peng YU +6 位作者 Bang-Guo YANG Meng-Meng LI Ji-Qiang HE Quan LI Cheng-Xiong GU Shu-Zheng LYU Jian-Zeng DONG 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2017年第4期254-260,共7页
Background There are limited data on long-term (〉 5 years) outcomes of drug-eluting stent (DES) implantation compared with coro- nary artery bypass grafting (CABG) for ostial/rnidshaft left main coronary artery... Background There are limited data on long-term (〉 5 years) outcomes of drug-eluting stent (DES) implantation compared with coro- nary artery bypass grafting (CABG) for ostial/rnidshaft left main coronary artery (LMCA) lesions. Methods Of the 259 consecutive pa- tients in Beijing Anzhen Hospital with ostial/midshaff LMCA lesions, 149 were treated with percutaneous coronary intervention (PCI) with DES and 110 were with CABG. The endpoints of the study were death, repeat revascularization, myocardial infarction (MI), stroke, the composite of cardiac death, and major adverse cardiac and cerebrovascular events (MACCE, the composite of cardiac death, MI, stroke or repeat revascularization).The duration of follow-up is 7.1 years (interquartile range 5.3 to 8.2 years). Results There is no significant differ- ence between the PCI and CABG group during the median follow-up of 7.1 years (interquartile range: 5.3-8.2 years) in the occurrence of death (HR: 0.727, 95% CI: 0.335-1.578; P = 0.421), the composite endpoint of cardiac death, MI or stroke (HR: 0.730, 95% CI: 0.375-1.421; P = 0.354), MACCE (HR: 1.066, 95% CI: 0.648-1.753; P = 0.801), MI (HR: 1.112, 95% CI: 0.414-2.987; P = 0.833), stroke (HR: 1.875, 95% CI: 0.528-6.659; P = 0.331), and repeat revascularization (HR: 1.590, 95% CI: 0.800-3.161; P = 0.186). These results remained after multivariable adjusting. Conclusion During a follow-up up to 8.2 years, we found that DES implantation had similar endpoint outcomes compared with CABG. 展开更多
关键词 Coronary artery bypass graft Drug-eluting stent Percutaneous coronary intervention
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A Location Privacy Preserving Solution to Resist Passive and Active Attacks in VANET 被引量:2
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作者 ZHU Xiaoling HU Donghui HOU Zhengfeng DING Liang 《China Communications》 SCIE CSCD 2014年第9期60-67,共8页
Existing location privacy- preserving methods, without a trusted third party, cannot resist conspiracy attacks and active attacks. This paper proposes a novel solution for location based service (LBS) in vehicular a... Existing location privacy- preserving methods, without a trusted third party, cannot resist conspiracy attacks and active attacks. This paper proposes a novel solution for location based service (LBS) in vehicular ad hoc network (VANET). Firstly, the relationship among anonymity degree, expected company area and vehicle density is discussed. Then, a companion set F is set up by k neighbor vehicles. Based on secure multi-party computation, each vehicle in V can compute the centroid, not revealing its location to each other. The centroid as a cloaking location is sent to LBS provider (P) and P returns a point of interest (POI). Due to a distributed secret sharing structure, P cannot obtain the positions of non-complicity vehicles by colluding with multiple internal vehicles. To detect fake data from dishonest vehicles, zero knowledge proof is adopted. Comparing with other related methods, our solution can resist passive and active attacks from internal and external nodes. It provides strong privacy protection for LBS in VANET. 展开更多
关键词 vehicular ad hoc network locationbased services location k-anonymity securemulti-party computation
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Revisiting of the South African Mine Workers' Union --A Significant Factor in South African Mining History
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作者 Wessel Visser 《History Research》 2013年第4期239-258,共20页
Founded in 1902 as the Transvaal Miners' Association, the South African Mine Workers' Union (MWU), as it was renamed in 1913, rose to prominence as a militant union for white miners, especially during the turbulen... Founded in 1902 as the Transvaal Miners' Association, the South African Mine Workers' Union (MWU), as it was renamed in 1913, rose to prominence as a militant union for white miners, especially during the turbulent years of industrial strife and bloody strike action in the first two decades of the 20th century. Since the election victory of the Pact government in 1924 a program of pro-white protectionist legislation was introduced. As South Africa's most prominent white trade union of the 20th century, the MWU therefore became renowned for defending job reservation in the mining industry. After 1948, it enjoyed the National Party government's support in this regard. However, skilled labor shortages and changing labor conditions in the 1970s forced the government to introduce labor reform. Job reservation was scrapped and black unions were officially recognized. These initiatives put the MWU on a confrontational path with the government and the union aligned itself with right-wing political resistance and protest. But, the altered political and economic South African realities after 1994 forced the MWU to rethink its strategies. By 2002, it had reinvented and transformed itself into Solidarity, adequately equipped for addressing the labor challenges and demands of a post-apartheid South Africa. This article, based on the author's research of the South African labor movement in the early 20th century, traces the historical development of the union and its influence on South African political and labor history. 展开更多
关键词 Mine Workers' Union strikes Wiehahn Commission right-wing politics SOLIDARITY
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Greek Classics Through Comic Books" Negotiating Cultural Tradition Under the Fidelity Pseudo-Dilemma
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作者 Moula Evangelia 《Journal of Literature and Art Studies》 2012年第6期587-605,共19页
Greek classics, Homer, and the Greek tragedians, supposed to be the cornerstone of Western civilization, have long suffered from a stagnant and formalistic institutional approach. On the other hand, the adaptations, t... Greek classics, Homer, and the Greek tragedians, supposed to be the cornerstone of Western civilization, have long suffered from a stagnant and formalistic institutional approach. On the other hand, the adaptations, the transcriptions, or the transubstantiations of the Greek antiquity material into new stories and formats compose an abundant cultural field. Antiquity is diffused in a variety of texts, among comics as well. In this paper, we revise the comic books adaptations dealing with ancient Greek classics and classify them according to "the fidelity criterion-dilemma", to the kind of reader they imply and to the extent of authorial mastery they impose. When classics and comics collide, they create unexpected variations of the ancient material, reflecting the receiving culture's practices and beliefs. 展开更多
关键词 Greek classics adaptations FIDELITY SUBVERSION comic books
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The Relationship Between Board Skills and Conservatism: Malaysian Evidence
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作者 Rahimah Mohamed Yunos Universiti Teknologi MARA Johor, Malaysia Malcolm Smith Zubaidah Ismail 《Journal of Modern Accounting and Auditing》 2012年第8期1173-1184,共12页
This study seeks to examine the influence of board skill, multiple directorships (BSHIP), and tenure of independent directors on accounting conservatism, as measured by asymmetric timeliness and accrual-based conser... This study seeks to examine the influence of board skill, multiple directorships (BSHIP), and tenure of independent directors on accounting conservatism, as measured by asymmetric timeliness and accrual-based conservatism (CONACCR). Fixed-effect regression models were constructed on a sample of 2016 firm-year observations for asymmetric timeliness model and 2033 firm-year observations for CONACCR model, which covered from 2001 to 2007. The findings show that the degree of financial expertise on the board is positively associated with the recognition of bad news which is relative to good news into earnings. BSHIP appears to have no effect on conservatism. Independent directors who have longer tenure in the board of the firms are slower in recognizing bad news which is relative to good news into earnings. The study provides empirical evidence on the effectiveness of the board of directors, which will be an interest to the practitioner or regulators in reviewing the corporate governance regulations. 展开更多
关键词 board skill financial expertise multiple directorships TENURE CONSERVATISM
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Trumponomics and China-US Economic and Trade Relations
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作者 Li Wei Zhang Yuhuan 《Contemporary International Relations》 2017年第2期51-66,共16页
Since he took office, the new US president, Donald Trump, has unveiled his broad economic policy--now called Trumponomics. It emphasizes neoliberalism at home, less government regulations, more growth and weakening th... Since he took office, the new US president, Donald Trump, has unveiled his broad economic policy--now called Trumponomics. It emphasizes neoliberalism at home, less government regulations, more growth and weakening the welfare state. Intemationally, Trumponomics embraces protectionism and nativism with a focus on US economic interests. Trumponomics caters to the lower-middle classes, a reflection of the country's current economic and diplomatic challenges. Trumponomics will bring uncertainty to China-US economic and trade relations. China should carefully study the policies of the Trump administration and prepare contingency plans. 展开更多
关键词 Trumponomics China-US economic and trade relations major power relations trade war
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The Babysitter: A Feminist Interpretation
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作者 LIU Ke-dong LI Shuang-shuang 《Journal of Literature and Art Studies》 2014年第7期521-526,共6页
Sexual violence, a prevalent problem in the spousal relationship, is closely related to the issue of female consciousness. In The Babysitter, Coover (1989) tells of a teenage girl babysitting two kids and a baby and... Sexual violence, a prevalent problem in the spousal relationship, is closely related to the issue of female consciousness. In The Babysitter, Coover (1989) tells of a teenage girl babysitting two kids and a baby and of two of her male peers and the children's father altogether exploring their obsession towards her and, moreover, traces the evaluation and devaluation of women to the presentation of TV exploring its influence on his heroines, namely Mrs. Tucker and the babysitter serving as victims of the patriarchal society. Through a close engagement with the sexual objectification theory, this paper analyzes in detail men's aggressive oppressions upon women as well as women's compromise and rebellion towards the sexual violence, and investigates that the awakening of female independent consciousness is a key factor in effectively helping women achieve the gender equality between sexes. 展开更多
关键词 Robert Coover The Babysitter OBJECTIFICATION
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Does the system of independent directors help improve the quality of accounting information: From the perspective of earnings conservatism
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作者 CHEN Wei ZENG Li TAN Li-chuan 《Chinese Business Review》 2008年第1期49-55,共7页
Based on the sample data of the listed firms on the A stock market, we analyze how the system of independent directors influence the earning conservatism from 4 dimensions designed to measure the monitoring power of t... Based on the sample data of the listed firms on the A stock market, we analyze how the system of independent directors influence the earning conservatism from 4 dimensions designed to measure the monitoring power of these independent directors: Percentage within BDs, professional capacities, stimulation and work conditions. From the empirical results, we conclude that the more powerful of the independent directors, the better the accounting conservatism, and that their positive impact increases along with the improvement on corporate governance, meanwhile the work conditions plays the most important role, and then are the percentage within BDs and their professional capacities, the stimulation and personal reputation appear the least importance. 展开更多
关键词 independent directors monitoring accounting conservatism orthogonal factor analysis path analysis
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Energy conservation research of dehumidification system for main cable anticorrosion of suspension bridge 被引量:1
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作者 Chen Ce Fan Liangkai +1 位作者 Feng Zhaoxiang Pen Guanzhong 《Engineering Sciences》 EI 2011年第2期74-77,共4页
The necessity of the main cable anticorrosion for suspension bridge is described, and operating principles and composition of main cable dehumidification system are analyzed. An idea using the waste heat of high tempe... The necessity of the main cable anticorrosion for suspension bridge is described, and operating principles and composition of main cable dehumidification system are analyzed. An idea using the waste heat of high temperature outlet air of dehumidification system to heat up regeneration air of rotary-type dehumidifier is put forward in this paper. The concrete scheme is to install a heat exchanger on air-out pipeline of roots blower and air-in pipeline of regeneration electric heater of rotary dehumidifier. Air preheated by the heat exchanger enters regeneration electric heater of rotary-type dehumidifier. Energy conservation of main cable dehumidification system for the Yangtze River highway bridge is calculated, and the results show that energy conservation rate can reach 44 %. 展开更多
关键词 suspension bridge main cable dehumidification system heat exchanger energy conservation
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Comparative investigation of the calcification of the cryopreserved aortic and pulmonary homografts after implantation
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作者 杨光 汪曾炜 +2 位作者 蔡振杰 李莹 林树新 《Journal of Medical Colleges of PLA(China)》 CAS 2001年第2期119-121,共3页
Objective:Thisexperimentwasperformedto investigatethecalcificationof thecryopreservedaorticand pulmonaryhomograftsquantitivelyafterimplantation.Methods:Inoperationtheheterotopicimplantationof homo-graftconduitsintothe... Objective:Thisexperimentwasperformedto investigatethecalcificationof thecryopreservedaorticand pulmonaryhomograftsquantitivelyafterimplantation.Methods:Inoperationtheheterotopicimplantationof homo-graftconduitsintotheabdominalaortawasadopted.Thecalcificationof thehomograftconduitswasdeterminedby SX microelectronicprobeanalysis8wk afterimplantation.Results:Beforeimplantationthecalciumcontentof aor-tichomografts[(0.24±0.05)μg/mg]was significantlyhigherthanthatof pulmonaryhomograft[(0.13±0.02)μg/mg,P<0.01].Afterimplantationthecalciumcontentof arotichomografts[(0.53±0.09)μg/mg]was significantlyhigher thanthatbeforeimplantation[(0.24±0.05)μg/mg], withan increaseby(123.4±53.0)%(P<0.01),andso was thatof pulmonaryhomograftsfrom [(0.13±0.02)to(0.21±0.30)μg/mg],withan increaseby(63.8±35.8)%(P<0.01).And thecalciumcontentof aortichomograft[(0.53±0.09)μg/mg]wasstillsignificantlyhigherthanthatof pulmonaryhomo-graft[(0.21±0.03)μg/mg,P<0.01].Conclusion:In homograftconduitimplantationtheaortichomograftsaremore easilycalcifiedthanpulmonaryhomografts.TheMicroelectronicprobetechniquehasa greatsignificanceinelement componentanalysisof biologicalpreparation. 展开更多
关键词 AORTIC pulmonaryartery HOMOGRAFT CALCIFICATION microelectronicprobe
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Incidence and in-hospital mortality of acute aortic dissection in China: analysis of China Health Insurance Research (CHIRA) Data 2011 被引量:53
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作者 Lei XIA Jing-Hu LI +1 位作者 Kun ZHAO Hai-Yun WU 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2015年第5期502-506,共5页
Objective Acute aortic dissection (AAD) is a catastrophic event with high early mortality rate, but to date, no data on the incidence of AAD in China's Mainland is available. This study aimed to estimate the inc... Objective Acute aortic dissection (AAD) is a catastrophic event with high early mortality rate, but to date, no data on the incidence of AAD in China's Mainland is available. This study aimed to estimate the incidence of AAD in China and characterize the clinical profile, management and in-hospital outcomes of this vascular event. Methods We used the China Health Insurance Research Data (the CHIRA Data) 2011 which comprises all inpatient hospital records (300,886) during the period of Jan. 1st 2011 to Dec. 31 2011 of 3,335,000 randomly sampled beneficiaries (1,718,500 men and 1,616,500 women) from 25 cities and counties in different economic-geographic regions of China's Mainland. Patients with acute aortic dissection were identified according to International Classification of Disease 10m Revision (ICD-10) of I71.0, The estimated incidence of AAD was calculated using the equation: estimated incidence = 2.0 × (40% × hospital admission rate) + 60% × hospital admission rate. Results The hospital admission rate was 2.0/100,000 (65/3,325,000, 95% CI: 1.2-2.8). The estimated annual incidence of AAD was 2.8/100,000 (95% CI: 1.9-3.6) and was higher in male than in female (3.7 vs. 1.5, P 〈 0.001). The mean age was 58.9 ± 13.4 years. During the mean hospital stay of 23 ±6 days, the overall in-hospital mortality was 13.9% (9/65). Conclusions Our study showed relatively lower but not negligible incidence and in-hospital mortality of AAD in the mainland of China. The mean age of patients with AAD in Chinese was younger than that reported by researches from west countries, while the male to female incidence ratio is similar to those reported by other studies. 展开更多
关键词 Acute aortic dissection China health insurance research Incidence rate
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The Bhumisukta Revisited in the Background of Contemporary Environmentalism
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作者 Santosh Kumar Pal 《Journal of Philosophy Study》 2012年第11期835-844,共10页
In this paper I like to revisit Bhumisukta of the Atharvaveda in the backdrop of present-day environmentalism. It is divided into three parts. In Part 1 I like to give a synoptic view of contemporary environmentalism,... In this paper I like to revisit Bhumisukta of the Atharvaveda in the backdrop of present-day environmentalism. It is divided into three parts. In Part 1 I like to give a synoptic view of contemporary environmentalism, as reflected in Arne Naess's Deep Ecology. In Part 2 I make an exposition of the Bhumisukta, particularly those verses (mantras) which are directly relevant to our environmental concerns. To say the truth, this Bhumisukta (also called the Pcthivisitkta) epitomizes the Vedic Hindu eco-culture. The Bhumisukta (which literally means, the Hymn or Prayer to the Earth) is the oldest and the most evocative environmental discourse. It is called "the first natural anthem" in the history of mankind. It constitutes the first anuvgtka of dvgtda~ kgm. da of the Atharvaveda and contains 63 verses (mantras) devoted to glorifying the Earth as sacred and inviolable. Many prayers have been sung for the preservation and conservation of Nature and its gifts of splendor. The Bh^misftkta talks about human dependence on the Nature and respect for the same that follows naturally. It proclaims of the Earth as the mother, and humanity as her children Bhumisukta, putro'ham pr. thivyah" In Part 3 1 like to make a brief but critical observation regarding the loss of continuity of Vedic tradition in view of an objection made by some Western environmentalists. In this concluding part I like to respond to the objection that so called eco-sensitive cultures could not avert environmental pollution and depletion of Nature in countries, like India. 展开更多
关键词 Sukta environmental ethics ANTHROPOCENTRISM speciesism instrumental value intrinsic/inherent value ECOCENTRISM Deep Ecology
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Evaluation of the Conservatism Level in Kuwait Stock Exchange By Using Basu Model
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作者 Allam Mohammed Mousa Hamdan 《Journal of Modern Accounting and Auditing》 2011年第4期391-396,共6页
This study aims to evaluate the level of accounting conservatism when preparing financial statements by companies listed in Kuwait Stock Exchange (KSE). In addition, the study examines the factors that affect the le... This study aims to evaluate the level of accounting conservatism when preparing financial statements by companies listed in Kuwait Stock Exchange (KSE). In addition, the study examines the factors that affect the level of accounting conservatism in those companies with regard to company sizes, debt contracts, and the type of sector the company belongs to. To achieve these goals, the Basu (1997) model was used to measure conservatism level and the factors influencing it. The sample of the study comprises of 225 companies listed in KSE. Findings of the study showed that the KSE succeeded in forcing Kuwait companies to present a reasonable level of accounting conservatism. The study also found out that the financial statements of small companies were conservative, while those of the big ones were not. In addition, the debt contracts left an impact upon financial reports of accounting conservatism. Thus, companies with lower debts were more conservative than those of higher ones. Moreover, the financial statements of the financial sector in KSE were the most conservative. 展开更多
关键词 accounting conservatism company size debt contracts type of sector financial reporting Basu (1997) model
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