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Norms of Dual Complex Vectors and Dual Complex Matrices
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作者 Xin-He Miao Zheng-Hai Huang 《Communications on Applied Mathematics and Computation》 EI 2023年第4期1484-1508,共25页
In this paper,we investigate some properties of dual complex numbers,dual complex vectors,and dual complex matrices.First,based on the magnitude of the dual complex number,we study the Young inequality,the Hölder... In this paper,we investigate some properties of dual complex numbers,dual complex vectors,and dual complex matrices.First,based on the magnitude of the dual complex number,we study the Young inequality,the Hölder inequality,and the Minkowski inequality in the setting of dual complex numbers.Second,we define the p-norm of a dual complex vector,which is a nonnegative dual number,and show some related properties.Third,we study the properties of eigenvalues of unitary matrices and unitary triangulation of arbitrary dual complex matrices.In particular,we introduce the operator norm of dual complex matrices induced by the p-norm of dual complex vectors,and give expressions of three important operator norms of dual complex matrices. 展开更多
关键词 Dual complex number Dual complex vector Dual complex matrix p-norm Operator norm
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基于最弱t-norm算法模糊贝叶斯网络土石坝渗漏风险分析
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作者 范凯 王芳 +2 位作者 李宏恩 艾喆 张铸 《水电能源科学》 北大核心 2024年第7期119-123,共5页
针对土石坝工程渗漏影响要素多,风险评估体系不完善的问题,提出一种基于最弱t-norm算法模糊贝叶斯网络的土石坝渗漏风险分析模型。首先基于土石坝渗漏破坏成因构建土石坝渗漏风险分析网络,再基于层次分析法和最弱t-norm聚合算法求解不... 针对土石坝工程渗漏影响要素多,风险评估体系不完善的问题,提出一种基于最弱t-norm算法模糊贝叶斯网络的土石坝渗漏风险分析模型。首先基于土石坝渗漏破坏成因构建土石坝渗漏风险分析网络,再基于层次分析法和最弱t-norm聚合算法求解不同专家判断的相似性结果,最后将相似性结果转化为概率后代入贝叶斯理论计算水库渗漏破坏风险。以2005年英德尔水库渗漏破坏事件为例,计算得到该库渗漏破坏概率为0.08,属于不可接受风险,并通过反向诊断验证了该模型的可靠性与灵敏性优于传统算法。研究结果可为土石坝渗流风险分析与处置决策提供参考。 展开更多
关键词 土石坝渗漏 贝叶斯网络 最弱t-norm 风险分析
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REFINEMENTS OF THE NORM OF TWO ORTHOGONAL PROJECTIONS
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作者 Xiaohui LI Meiqi LIU Chunyuan DENG 《Acta Mathematica Scientia》 SCIE CSCD 2024年第4期1229-1243,共15页
In this paper,some refinements of norm equalities and inequalities of combination of two orthogonal projections are established.We use certain norm inequalities for positive contraction operator to establish norm ineq... In this paper,some refinements of norm equalities and inequalities of combination of two orthogonal projections are established.We use certain norm inequalities for positive contraction operator to establish norm inequalities for combination of orthogonal projections on a Hilbert space.Furthermore,we give necessary and sufficient conditions under which the norm of the above combination of o`rthogonal projections attains its optimal value. 展开更多
关键词 norm orthogonal projection positive operator SPECTRAL block operator valued matrix
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Return to ethics: On translators' norms of honor and shame 被引量:6
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作者 霍跃红 《Sino-US English Teaching》 2007年第11期39-45,共7页
Translation studies has undergone three different periods: the traditional philological period, the modem linguistic period and the contemporary cultural period. Ever since the cultural turn, especially after the int... Translation studies has undergone three different periods: the traditional philological period, the modem linguistic period and the contemporary cultural period. Ever since the cultural turn, especially after the introduction of deconstruction into translation, traditional translation theories have been greatly affected. The traditional principle like faithfulness to the source text and the writer has been attacked and the translator's subjectivity and creativity have been greatly advocated. Under such circumstances, this paper, however, holds that translation studies should turn to ethics for the messy situation, and translators should be able to identify norms of honor and shame in translation practice. 展开更多
关键词 translation studies DECONSTRUCTION ethics in translation norms of honor and shame
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Norms in the Translation of Chinese Film Titles 被引量:1
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作者 顾善萍 《海外英语》 2011年第11X期173-174,共2页
A film title is an essential part of a film.Compared with the translation of book titles and news headings,film title translation has been received far less attention,especially the rendering of Chinese film titles in... A film title is an essential part of a film.Compared with the translation of book titles and news headings,film title translation has been received far less attention,especially the rendering of Chinese film titles into English versions.Therefore,the thesis aims to study Chinese film title translation in the framework of norm theory and investigate the strategies adopted by translators. 展开更多
关键词 FILM titles norm THEORY TRANSLATION STRATEGIES
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Study on the subjectivity of translator from the aspect of translational norms
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作者 张文英 黄成 《Sino-US English Teaching》 2009年第4期36-39,44,共5页
As the emergence of conversion to aspect of culture in the study of translation, the subjectivity of translator is widely discussed. Translator is inevitably influenced by his/her own language and system of culture in... As the emergence of conversion to aspect of culture in the study of translation, the subjectivity of translator is widely discussed. Translator is inevitably influenced by his/her own language and system of culture in the process of translation. In order to make readers understand what is translated, a translator needs to bring subjectivity into play to make translated text conform to custom of his/her own language and system of culture. The study of subjectivity is mainly concentrated on understanding of original text and recreating of art on the level of linguistics. This paper studies the problem of subjectivity in the process of translation from translational norms, subjectivity, aim and creativity. 展开更多
关键词 translational norms CREATIVITY SUBJECTIVITY
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分配的完备格上的T-Norms的求解算法
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作者 樊东红 曾彦 张红燕 《科技通报》 北大核心 2012年第4期22-24,共3页
智能控制已经从二元论发展到四元论,目前智能推理算法存在缺陷,寻求最优模糊控制系统的有效方法还没有真正给出。文中介绍了智能蕴含算子的概念及4种基本的T-Norms,给出了分配的完备格上的T-Norms关系式的求解算法以及与T(r)相伴的智能... 智能控制已经从二元论发展到四元论,目前智能推理算法存在缺陷,寻求最优模糊控制系统的有效方法还没有真正给出。文中介绍了智能蕴含算子的概念及4种基本的T-Norms,给出了分配的完备格上的T-Norms关系式的求解算法以及与T(r)相伴的智能蕴含算子相关的计算公式,其作用是提升PID的建模思想,实现调节r,改良推理模型,完成最优控制。 展开更多
关键词 智能蕴含算子 T-norms 推理模型
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AN INTEGRAL ESTIMATE AND THE EQUIVALENT NORMS ON F(p, q, s, k) SPACES IN THE UNIT BALL 被引量:8
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作者 张学军 黎深莲 +1 位作者 尚清丽 郭雨婷 《Acta Mathematica Scientia》 SCIE CSCD 2018年第6期1861-1880,共20页
In this article, the authors give a typical integral's bidirectional estimates for allcases. At the same time, several equivalent characterizations on the F(p, q, s, k) space in theunit ball of Cn are given.
关键词 F(p Q s k) space integral estimate equivalent norm unit ball
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ESSENTIAL NORMS OF PRODUCTS OF WEIGHTED COMPOSITION OPERATORS AND DIFFERENTIATION OPERATORS BETWEEN BANACH SPACES OF ANALYTIC FUNCTIONS 被引量:4
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作者 Jasbir Singh MANHAS Ruhan ZHAO 《Acta Mathematica Scientia》 SCIE CSCD 2015年第6期1401-1410,共10页
We obtain several estimates of the essential norms of the products of differen- tiation operators and weighted composition operators between weighted Banach spaces of analytic functions with general weights. As applic... We obtain several estimates of the essential norms of the products of differen- tiation operators and weighted composition operators between weighted Banach spaces of analytic functions with general weights. As applications, we also give estimates of the es- sential norms of weighted composition operators between weighted Banach space of analytic functions and Bloch-type spaces. 展开更多
关键词 differentiation operators weighted composition operators weighted Banachspace of analytic functions Bloch-type spaces essential norms
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On the Norms of r-Toeplitz Matrices Involving Fibonacci and Lucas Numbers 被引量:2
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作者 Hasan Gökbaş Ramazan Türkmen 《Advances in Linear Algebra & Matrix Theory》 2016年第2期31-39,共9页
Let us define  to be a  r-Toeplitz matrix. The entries in the first row of  are  or;where F<sub>n</sub> and L<sub>n</sub> denote the usual Fibonacci and Lucas numbers, respe... Let us define  to be a  r-Toeplitz matrix. The entries in the first row of  are  or;where F<sub>n</sub> and L<sub>n</sub> denote the usual Fibonacci and Lucas numbers, respectively. We obtained some bounds for the spectral norm of these matrices. 展开更多
关键词 r-Toeplitz Matrix Fibonacci Numbers Lucas Numbers Spectral norm
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Bounds for Polynomial’s Roots from Fiedler and Sparse Companion Matrices for Submultiplicative Matrix Norms 被引量:1
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作者 Mamoudou Amadou Bondabou Ousmane Moussa Tessa Amidou Morou 《Advances in Linear Algebra & Matrix Theory》 2021年第1期1-13,共13页
We use submultiplicative companion matrix norms to provide new bounds for roots for a given polynomial <i>P</i>(<i>X</i>) over the field C[<i>X</i>]. From a <i>n</i>... We use submultiplicative companion matrix norms to provide new bounds for roots for a given polynomial <i>P</i>(<i>X</i>) over the field C[<i>X</i>]. From a <i>n</i>×<i>n</i> Fiedler companion matrix <i>C</i>, sparse companion matrices and triangular Hessenberg matrices are introduced. Then, we identify a special triangular Hessenberg matrix <i>L<sub>r</sub></i>, supposed to provide a good estimation of the roots. By application of Gershgorin’s theorems to this special matrix in case of submultiplicative matrix norms, some estimations of bounds for roots are made. The obtained bounds have been compared to known ones from the literature precisely Cauchy’s bounds, Montel’s bounds and Carmichel-Mason’s bounds. According to the starting formel of <i>L<sub>r</sub></i>, we see that the more we have coefficients closed to zero with a norm less than 1, the more the Sparse method is useful. 展开更多
关键词 Fiedler Matrices Polynomial’s Roots Bounds for Polynomials Companion Matrices Sparse Companion Matrices Hessenberg Matrices Submultiplicative Matrix norm
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Negative Norms in Quantized Strings as Dark Energy Density of the Cosmos 被引量:1
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作者 Mohamed S. El Naschie 《World Journal of Condensed Matter Physics》 CAS 2016年第2期63-67,共5页
The present short paper is concerned with accurate explanation as well as quantification of the so called missing dark energy of the cosmos. It was always one of the main objectives of any successful general theory of... The present short paper is concerned with accurate explanation as well as quantification of the so called missing dark energy of the cosmos. It was always one of the main objectives of any successful general theory of high energy particle physics and quantum cosmology to keep non-physical negative norms, the so called ghosts completely out of that theory. The present work takes the completely contrary view by admitting these supposedly spurious states as part of the physical Hilbert space. It is further shown that rethinking the ghost free condition with the two critical spacetime dimensions D<sub>1</sub> = 26 and D<sub>2</sub> = 25 together with the corresponding intercept a<sub>1</sub> = 1 and a<sub>2</sub> ≤ 1 respectively and in addition imposing, as in Gross et al. heterotic superstrings, an overall 496 dimensional exceptional Lie symmetry group, then one will discover that there are two distinct types of energy. The first is positive norm ordinary energy connected to the zero set quantum particles which is very close to the measured ordinary energy density of the cosmos, namely E(O) = mc<sup>2</sup>/22. The second is negative norm (i.e. ghost) energy connected to the empty set quantum wave and is equal to the conjectured dark energy density of the cosmos E(D) = mc<sup>2</sup> (21/22) presumed to be behind the observed accelerated cosmic expansion. That way we were able to not only explain the physics of dark energy without adding any new concepts or novel additional ingredients but also we were able to compute the dark energy density accurately and in full agreement with measurements and observations. 展开更多
关键词 Negative norms Quantum Ghosts Dark Energy Accelerated Cosmic Expansion SUPERSTRINGS Quantum Field Theory Cantorian-Fractal Spacetime Einstein Relativity Non-Fictional Spurions
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The Review of Descriptive Norms in Translation Studies
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作者 刘雯 《海外英语》 2010年第12X期183-183,185,共2页
The studies on descriptive norms in translation studies are of great significance because they spread the domain of norms and begin to consider the impact of the outside community so that they lead the study to a new ... The studies on descriptive norms in translation studies are of great significance because they spread the domain of norms and begin to consider the impact of the outside community so that they lead the study to a new field.Descriptive norms are discussed and studied systemically mainly by three scholars:Toury,Hermans,and Chesterman.The purpose of this article is to review this concept and try to point out some merits and demerits of their theory. 展开更多
关键词 DESCRIPTIVE norms TRANSLATION STUDIES MEMES
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Priority Disputes in Science in the Context of Conflicting Norms:The Case of Isaac Newton and Gottfried Leibniz Revisited 被引量:1
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作者 Douglas I. O. Anele 《Journal of Philosophy Study》 2011年第5期311-326,共16页
Thomas S. Kuhn is one of the leading philosophers and historians of science that investigated in-depth cases of simultaneous discoveries in science. Although his analysis of the discovery of energy conservation and ox... Thomas S. Kuhn is one of the leading philosophers and historians of science that investigated in-depth cases of simultaneous discoveries in science. Although his analysis of the discovery of energy conservation and oxygen did not focus sharply on the priority disputes involved, it is within such contexts that controversy about which scientist was the first to make a discovery takes place. Evidently, Kuhn's recourse to historical case studies is a clear departure from the standpoint of traditional mainstream philosophies of science (namely, logical positivism and falsificationism), which cavalierly dismissed such concerns as irrelevant to philosophical reconstructions of science Challenges to orthodox logistic approaches were prompted by the realisation that the two dominant traditions mentioned above, in their excessive preoccupation with "the logical skeleton of science", have lost contact with real science. As a contribution to what Michael Polanyi referred to as post-critical philosophy, the present study reanalyses the tension-generating potentials of bipolar values shared by members of scientific communities. It traces the origins of the rebellion against logic-dominated philosophies of science, and identifies different post-positivist approaches that have eme^rged over the years which legitimise broadening the frontiers of the philosophy of science. Consequent upon that, some conflicting values or norms shared by members of scientific communities and how they affect the quest for scientific knowledge are underscored. Using as a case study the acrimonious priority dispute between Isaac Newton and Gottfried Leibniz concerning the discovery of calculus, the paper demonstrates that excessive concern for recognition which sometimes leads to protracted priority disputes tends to bring out the worst kind of behaviours towards colleagues even from the greatest scientists. We submit, by way of conclusion, that despite the heroic (almost god-like) reputation of such scientists, they are human and, therefore, subject to the vicissitudes of emotional turbulence just like everyone else. 展开更多
关键词 priority dispute conflicting norms values science as a social institution scientific discovery scientificcommunity CALCULUS
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The Equivalence of Certain Norms on the Heisenberg Group
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作者 Murphy E. Egwe 《Advances in Pure Mathematics》 2013年第6期576-578,共3页
Let IHn be the (2n+1)-dimensional Heisenberg group. In this paper, we shall give among other things, the properties of some homogeneous norms relative to dilations on the IHn and prove the equivalence of these norms.
关键词 HEISENBERG GROUP HEISENBERG norms Equivalent norms HOMOGENEOUS GROUP
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NORMALLY DISTRIBUTED PROBABILITY MEASURE ON THE METRIC SPACE OF NORMS
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作者 Á.G.HORVÁTH 《Acta Mathematica Scientia》 SCIE CSCD 2013年第5期1231-1242,共12页
In this paper we propose a method to construct probability measures on the space of convex bodies. For this purpose, first, we introduce the notion of thinness of a body. Then we show the existence of a measure with t... In this paper we propose a method to construct probability measures on the space of convex bodies. For this purpose, first, we introduce the notion of thinness of a body. Then we show the existence of a measure with the property that its pushforward by the thinness function is a probability measure of truncated normal distribution. Finally, we improve this method to find a measure satisfying some important properties in geometric measure theory. 展开更多
关键词 Hausdorff metric BOREL DIRAC Haar and Lebesgue-measure space of convex bodies metric space of norms
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Misperceptions of peer gambling norms among adolescents: Analysis of a national sample in Finland
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作者 Susanna Raisamo Tomi Lintonen 《Open Journal of Preventive Medicine》 2012年第2期131-136,共6页
Introduction: Misperceptions of peer drinking norms are widely documented in the US student populations and are associated with increased personal consumption. Few studies have examined misperceptions of peer gambling... Introduction: Misperceptions of peer drinking norms are widely documented in the US student populations and are associated with increased personal consumption. Few studies have examined misperceptions of peer gambling, and none of these have been conducted among adolescents in the European context. In a national sample, we examined misperceptions of peer gambling in Finland. Tenets of the social norms approach form a framework for discussion of the findings. Methods: Participants were 4526 adolescents aged 12 to 18 years who completed the nationwide Adolescent Health and Lifestyle Survey in 2011. Main measures were gambling behavior and the perception of same age-sex peers’ gambling. Misperception was an overestimation of the frequency of gambling by others compared to the actual frequency of gambling. Results: Adolescents held substantial misperceptions of peer gambling, imagining they gambled much more than they actually did. Age, sex, and gambling behavior were correlated with the perceptions. The extent of misperception was greatest among monthly gamblers, whereas non-gamblers and daily gamblers were more accurate in their perceptions. Estimations of peers’ gambling frequency were more accurate in boys than in girls and among those aged 12 years than among older adolescents. Conclusion: Our findings suggest that adolescent gambling prevention efforts could benefit from adopting a social norms approach;that is, correcting gambling-related misperceptions might discourage gambling and protect adolescents from adopting more severe gambling patterns. 展开更多
关键词 ADOLESCENT GAMBLING Social norms MISPERCEPTIONS PEERS
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Cephalometric norms for a sample of Emirates adults
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作者 Huda M. Abu-Tayyem Amna H. Alshamsi +1 位作者 Sayed Hafez Eman Mohie ElDin 《Open Journal of Stomatology》 2011年第3期75-83,共9页
Introduction—European-American norms are still used in the orthodontic treatment of Emirates patients despite the different ethnic backgrounds of the Emirates. The purpose of this study was to formulate cephalometric... Introduction—European-American norms are still used in the orthodontic treatment of Emirates patients despite the different ethnic backgrounds of the Emirates. The purpose of this study was to formulate cephalometric norms for lateral cephalometric mea-surements of Emirates adults and to study gender differences. Methods—Lateral cephalometric radio-graphs of 176 Emirates adults, 91 males and 85 fe-males, were selected according to the following crite-ria;an age range between 19 to 25 years, esthetically pleasing and harmonious faces with balanced and acceptable profiles and occlusions, normal skeletal and dental relationship, all permanent teeth present, and no history of orthodontic treatment or facial trauma. The mean values and standard deviations of 91 angular and 21 linear cephalometric variables were calculated using the Dolphin version 10.5 soft-ware package. The resulting norms for Emirates male and female groups were compared using a student t-test. Results—Several statistically significant gender differences were noticeable. Skeletally, Emirates males showed significantly greater (p < 0.001) total, anterior, and posterior cranial base lengths as well as longer facial heights, greater SGn-FH (°), ANS Xi PM (°),and FH/MP (°) angles than females. In addition, Emirates males had significantly greater (p < 0.001) Co-A (mm), Co-Gn (mm), and significantly greater (p < 0.05) Pog-N vert (mm) than females. Dentally, Emirates males had significantly greater (p < 0.05) UI-SN (°) and U1-NA (°), U1-NA (mm), and L1-NB (mm) (p < 0.001) than females. For soft tissue measurements there were significant gender differences (p < 0.001) for all angular and linear measurements except for lower lip to E-plane and nose prominence measurements which have no significant gender difference. Emirates males revealed greater measurements than females except for soft tissue con-vexity, Z-angle, and both upper and lower lips pro-trusion which were significantly greater in Emirates females. Conclusions—The use of specific cephalometric standards for Emirates adults, sep-arate for gender, seems to be justified. It is appropri-ate to put these cephalometric norms into daily or-thodontic practice when Emirates adults are being treated. 展开更多
关键词 Emirates norms CEPHALOMETRIC norms
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Locating Multiple Facilities in Convex Sets with Fuzzy Data and Block Norms
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作者 Jafar Fathali Ali Jamalian 《Applied Mathematics》 2012年第12期1950-1958,共9页
In this paper we study the problem of locating multiple facilities in convex sets with fuzzy parameters. This problem asks to find the location of new facilities in the given convex sets such that the sum of weighted ... In this paper we study the problem of locating multiple facilities in convex sets with fuzzy parameters. This problem asks to find the location of new facilities in the given convex sets such that the sum of weighted distances between new facilities and existing facilities is minimized. We present a linear programming model for this problem with block norms, then we use it for problems with fuzzy data. We also do this for rectilinear and infinity norms as special cases of block norms. 展开更多
关键词 Multifacility LOCATION BLOCK norm Minisum FUZZY Data LINEAR PROGRAMMING
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Protocol for a Respondent-Driven Sampling Study Exploring the Roles of Peer Norms in HIV-Related Practices of Gay Men
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作者 Iryna Zablotska John de Wit +4 位作者 Graham Brown Bruce Maycock Christopher Fairley Michelle McKechnie Garrett Prestage 《World Journal of AIDS》 2013年第4期320-326,共7页
Introduction: Sexual behaviour among gay and other men who have sex with men (GMSM) is influenced by the shared understanding of HIV/STI risk and peer norms regarding sexual behaviour. However, there is little researc... Introduction: Sexual behaviour among gay and other men who have sex with men (GMSM) is influenced by the shared understanding of HIV/STI risk and peer norms regarding sexual behaviour. However, there is little research evidence to support this relationship. The unique geographic spread of Australian communities, the history of Australian HIV epidemic and the different patterns in risky sexual practices and HIV diagnoses across Australia present an opportunity to explore the role of social norms and GMSM behaviours in shaping different patterns of HIV epidemics. We describe the protocol of the study of contemporary norms in networks and communities of GMSM (CONNECT) which investigates gay community behavioural norms and practices. Methods: CONNECT is aimed to 1) identify the patterns of connections between individuals in GMSM communities and assess how they shape HIV-related behaviours;2) describe the relationship between social norms and sexual practices;and 3) compare the norms and patterns of behaviour in geographically and epidemiologically distinct GMSM populations in three Australian states New South Wales, Victoria and Western Australia, in order to identify local community norms and barriers to effective HIV prevention. This quantitative cross-sectional study uses respondent-driven sampling (RDS) for recruitment. Results: Analyses will be carried out on individual and community level and will investigate the relationship between community-level behavioural norms and associated practices of individuals. Conclusion: CONNECT is anticipated to inform HIV prevention services to better target and increase the effectiveness of the current health promotion for GMSM in the context of increasing HIV/STI incidence. 展开更多
关键词 HIV GMSM Networks Behaviour COMMUNITY norms
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