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351.
Nikola Počuča Michael P.B. Gallaugher Katharine M. Clark Paul D. McNicholas 《Australian & New Zealand Journal of Statistics》2023,65(2):152-165
In recent years, the analysis of three-way data has become ever more prevalent in the literature. It is becoming increasingly common to analyse such data by means of matrix-variate distributions, the most prevalent of which is the matrix-variate normal distribution. Although many methods exist for assessing multivariate normality, there is a relative paucity of approaches for assessing matrix-variate normality. Herein, a new visual method is proposed for assessing matrix-variate normality by means of a distance–distance plot. In addition, a testing procedure is discussed to be used in tandem with the proposed visual method. The proposed approach is illustrated via simulated data as well as an application on analysing handwritten digits. 相似文献
352.
José Ignacio Carrasco Ognjen Obućina 《International migration (Geneva, Switzerland)》2023,61(1):239-255
This article explores the conditions under which Senegalese immigrants in Spain send remittances home, beginning with the premise that remittances are intertwined with migration histories and migrants’ incorporation into host societies. Given the strong gender norms in Senegal, we perform separate analyses for men and women. We use a longitudinal approach to analyse how remittance behaviour is affected by immigrants’ characteristics, their economic integration, and their ties to origin and destination. Our data come from the MAFE and MESE surveys, which were implemented in 2008 and 2011, respectively. The results indicate that remitters constitute a clear majority among Senegalese immigrants in Spain. The Kaplan–Meier analysis shows that they rarely stop remitting once they start doing so, and the multivariate analysis reveals a strong positive association between employment and remittance sending. Although most coefficients in the full model are similar for men and women, some important differences emerge as well. 相似文献
353.
Ján Somorčík 《Australian & New Zealand Journal of Statistics》2011,53(2):197-215
The classical spatial median is not affine‐equivariant, which often turns out to be an unfavourable property. In this paper, the asymptotic properties of an affine‐equivariant modification of the spatial median are investigated. It is shown that under some weak regularity conditions, the modified spatial median computed by means of the sample norming matrix is asymptotically equivalent to the one computed by means of the population norming matrix, which yields its asymptotic normality. A consistent estimate of the asymptotic covariance matrix of the modified spatial median is also presented. These results are implemented in a scheme, where the sample norm is determined by means of the sample Dümbgen scatter matrix. The results are utilized in the construction of affine‐invariant test statistics for testing the multi‐sample hypothesis of equality of location parameters. The performance of the proposed tests is demonstrated through a simulation study. 相似文献
354.
355.
Piet Verhoeven Ansgar Zerfass Dejan Verčič Ralph Tench Angeles Moreno 《Public Relations Review》2018,44(4):471-480
This article raises the question of whether European public relations (PR) and communications professionals perceive a cultural transformation in the direction of hypermodernity, and if so, attempts to assess how this influences their organizations and their work. Questions were asked in the European Communication Monitor 2017, an annual survey among communications professionals, and 3387 respondents from 50 European countries filled in the questionnaire. The results indicate that European professionals recognize a cultural transformation in the direction of hyper consumption, hyper modernization and hyper narcissism that influences the communication between their organizations and their stakeholders. A cluster analysis shows that less than half of the respondents perceive a transformation of their organization in the direction of hypermodern characteristics and values. Organizations with post/hypermodern characteristics have superior communications departments compared to modern organizations. Post/hypermodern organizations and excellent communications departments also engage more often in societal debates than other types of organizations and departments. 相似文献
356.
This article explores the experiences of women with intellectual disabilities in becoming a mother. The presented findings are from a grounded theory research study with 19 women with intellectual disabilities from the Czech Republic. The findings are organised around external and internal factors affecting the women’s assumption of the mother identity, with the most prominent being poverty of the participating mothers, negative attitudes towards their motherhood, and a lack of preparation for motherhood. There is a need for systemic support for mothers with intellectual disabilities, starting in adolescence with sexual education, and continued throughout adulthood, including programmes focused on skills development. 相似文献
357.
Clara Rubio Montserrat Clua i Fainé Carles Feixa Pàmpols 《Journal of youth studies》2019,22(2):223-239
Since the beginning of the economic crisis in Spain young people have migrated abroad looking for job opportunities. In the meantime, after the 15-M movement in 2011, Spanish society created various social movements hoping to make change happen, as well as the pro-independence movement in Catalonia that gathered strength as a response to the Spanish economic and political crisis. This paper analyses how Spanish young people in London, as transmigrants rooted in two different countries, engage with the politics of their home country through two transnational social movements in London: ANC England and the Maroon Wave London. The article describes both local movements (comparing their goals, structure and activities), showing the reasons that young Spanish migrants get involved and their experiences within them. It also rethinks the nature and modalities of young diasporic identities and political engagement in the global age through the experiences of the young people interviewed. 相似文献
358.
Stjepka Popović 《Journal of child sexual abuse》2018,27(7):752-777
Public knowledge and attitudes toward child sexual abuse are shaped through media depictions and coverage. Since the media are the main source of information about child sexual abuse, studies of child sexual abuse news can help us understand how news is created, how child sexual abuse is presented to the public, and what is the possible impact of such presentation and coverage on the audience. A systematic review of content analysis research is conducted using predefined criteria in order to identify quality studies, main findings, research gaps and to develop recommendations for future studies. International databases were systematically searched using keywords in September 2017. A total of 24 original quantitative content analysis studies published in the English language were included in the review and evaluated according to research methodology. The framework of child sexual abuse news media studies is developed and main findings are highlighted: (1) presentation and coverage of child sexual abuse (n = 7); (2) prevalence of coverage of CSA cases reported to the authorities (n = 2); (3) presentation and coverage of child abuse and sexual crimes where child sexual abuse is only a subtopic (n = 9); (4) presentation and coverage of specific child sexual abuse cases or issues (n = 6). Although studies represent valuable contribution, most did not meet content analysis design and reporting standards or both (e.g., calculating intercoder reliability), which seriously compromises validity and replicability requirements. Recommendation for future studies and most common errors in conducting content analysis are emphasized. 相似文献
359.
A successful democratic consolidation of post-socialist societies depends, among other things, on their citizens’ political culture, younger generations included. Moreover, youth civic engagement today and in the future is a guarantee of the continuity and development of democracy, which means that scientists need to gain insight into young people’s political culture. In this paper we look at political values, institutional trust and participation as relevant components of the civic political culture. The analysis is based on quantitative data collected in the empirical studies of Croatian youth, carried out between 1999 and 2013. Based on longitudinal study results, a downward trend is identified regarding selected political culture indicators: acceptance of liberal-democratic values, trust in social and political institutions, interest in politics and party preference. However, there is a simultaneous increase in participation in various types of organizations, especially political parties. The interpretation of established tendencies is placed in a broader context of an inherited democratic deficit, economic recession and social crisis. Current trends are both indicators and consequences of young people’s inadequate political socialization as well as weaknesses of political institutions and various actors during the transition and consolidation period. 相似文献
360.
The purpose of this paper is twofold. One of the aims is to give a view of P. C. Fishburn's non-transitive expected utility
through geometric linear algebra. The other is to give an application of these ideas to a social choice problem. Actually,
the problem under consideration arises from the theory of dynamical systems of structures in a society as studied in [All]
and [Om1]. A variation of this model as presented in [Om2] leads to the problem of how macro structures of a society form
coalitions. Their possible irrational behaviour may be treated using non-transitive expected utility.
Received: 14 February 1996/Accepted: 22 January 1997 相似文献