The Weibull Marshall–Olkin family: Regression model and application to censored data

We introduce a new class of distributions called the Weibull Marshall–Olkin-G family. We obtain some of its mathematical properties. The special models of this family provide bathtub-shaped, decreasing-increasing, increasing-decreasing-increasing, decreasing-increasing-decreasing, monotone, unimodal and bimodal hazard functions. The maximum likelihood method is adopted for estimating the model parameters. We assess the performance of the maximum likelihood estimators by means of two simulation studies. We also propose a new family of linear regression models for censored and uncensored data. The flexibility and importance of the proposed models are illustrated by means of three real data sets.     

Gay Male Academics in UK Business and Management Schools: Negotiating Heteronormativities in Everyday Work Life

This paper contributes to a neglected topic area about lesbian, gay, bisexual and trans people's employment experiences in UK business and management schools. Drawing on queer theory to problematize essentialist notions of sexuality, we explore how gay male academics negotiate and challenge discourses of heteronormativity within different work contexts. Using in‐depth interview data, the paper shows that gay male academics are continually constrained by heteronormativity in constructing viable subject positions as ‘normal’, often having to reproduce heteronormative values that squeeze opportunities for generating non‐heteronormative ‘queer’ sexualities, identities and selves. Constructing a presence as an openly gay academic can invoke another binary through which identities are (re)constructed: as either ‘gay’ (a cleaned up version of gay male sexuality that sustains a heteronormative moral order) or ‘queer’ (cast as radical, disruptive and sexually promiscuous). Data also reveal how gay men challenge organizational heteronormativities through teaching and research activities, producing reverse discourses and creating alternative knowledge/power regimes, despite institutional barriers and risks of perpetuating heteronormative binaries and constructs. Study findings call for pedagogical and research practices that ‘queer’ (rupture, destabilize, disrupt) management knowledge and the heterosexual/homosexual binary, enabling non‐heteronormative voices, perspectives, identities and ways of relating to emerge in queer(er) business and management schools.     

A new alternative quantile regression model for the bounded response with educational measurements applications of OECD countries

This article introduces a new distribution with two tuning parameters specified on the unit interval. It follows from a ‘hyperbolic secant transformation’ of a random variable following the Weibull distribution. The lack of research on the prospect of hyperbolic transformations providing flexible distributions over the unit interval is a motivation for the study. The main distributional structural properties of the new distribution are established. The different estimation methods and two simulation works have been derived for model parameters. Subsequently, we develop a related quantile regression model for further statistical perspectives. We consider two real data applications based on the educational measurements of both OECD and some non-members of OECD countries. Our regression model aims to relate the desire to get top grades on certain young students in the OECD countries with some of their Education and School Life Index such as reading performance, work environment at home, and paid work experience. It is shown that the elaborated quantile regression model has a better fitting power than famous regression models when the unit response variable possesses skewed distribution as well as two independent variables are significant in the statistical sense at any standard significance level for the median response.     

Dimensions et effets des activités informelles dans une très petite économie

Les auteurs évaluent l'emploi informel – et les revenus non déclarés qu'il engendre – dans une très petite économie à gouvernance médiocre. Les données d'une enquěte auprès des ménages et d'un recensement leur servent à estimer le nombre de travailleurs en emploi informel à Chypre‐Nord, ainsi que les caractéristiques de cet emploi, entre 2004 et 2011. Les travailleurs concernés sont essentiellement des citoyens non affiliés à la sécurité sociale, des immigrés employés illégalement ou des personnes ayant deux emplois dont un non déclaré. L'économie informelle aurait représenté 9,1 pour cent du PNB en 2006, et 12,2 en 2011.     

In the steps of Joan Acker: A journey in researching inequality regimes and intersectional inequalities

Inspired by two of Acker's interconnected concepts, inequality regimes and intersectionality, the authors revisit their intersectional research. By exploring their various studies on inequality regimes and intersectionality, the authors propose some novel insights that have emerged from an aggregate appraisal of some 17 empirically researched papers, all shaped by Joan Acker's sociology. While Acker's work on gender and organizations has provided crucial insights into much of this work, this article concentrates on the overarching concept of inequality regimes and then focuses in on less‐developed aspects of intersectionality in Acker's work. In doing so, it reconsiders the value of inequality regimes in pushing the boundaries of intersectional insights.     

Evaluation of the relationship between compliance with the follow-up and treatment protocol and health literacy in bladder tumor patients

Abstract

Objective: To investigate the relationship between the compliance of bladder cancer patients with cystoscopic follow-up and the treatment protocol, and their health literacy.

Methods: Patients who underwent transurethral resection surgery for bladder tumor were found to have non-muscular invasive bladder carcinoma on pathology examination and then underwent cystoscopic follow-up for 1?year or more were included in the study. Cystoscopic follow-up was recommended to the low- and high-risk groups in terms of progression and recurrence. The patients were evaluated with the Health Literacy Survey-European Union scale.

Results: The mean age of the patients was 67.13?±?10.77 years. The treatment continuity rate was 80.50% (n?=?33) in the adequate health literacy group (n?=?41) and significantly higher than the 56.50% (n?=?48) rate in the inadequate health literacy group (n?=?85) (p?=?.008). The health literacy results revealed that the health promotion and general index score was higher in the group of patients under the age of 65.

Conclusions: Adequate health literacy in bladder cancer patients is associated with better compliance with the treatment protocol. Young patients show better compliance with the follow-up protocol recommended by the physician. Increasing the follow-up protocol compliance of elderly patients with inadequate health literacy is necessary.     

Model,Event, Context: Globalization,Arab Social Movements,and the Modeling of Global Order

In this article I scrutinize a particular discursive strategy that attempts to straightjacket the new social movements in the Arab uprisings. Rather than being open to new forms of polities and alternative modes of economic and social organization, an emerging governmental and scholarly discourse calls for a model of development for the Arab world. I argue that this model limits political imagination; and that it is the effect of a late modern logic that seeks to impose a particular form of politics in global political life. In, and through, the language of an archetype, these social movements, and the emerging polities, are being tamed to inherit the tensions and fragilities of a certain form of political and economic globalization.

En este artículo examino detalladamente una estrategia particularmente divagadora, que trata de restringir los nuevos movimientos sociales en los levantamientos árabes. En vez de abrirse a nuevos sistemas de gobierno y medios alternativos de organización económica y social, un planteamiento de gobierno emergente y académico exige un modelo de desarrollo para el mundo árabe. Sostengo que este modelo limita la imaginación política y que es el efecto de una lógica moderna tardía que busca imponerse a una forma particular de política en la vida política global. Estos movimientos sociales y los sistemas de gobierno nacientes dentro y a través del lenguaje de un arquetipo, se han domado para heredar las tensiones y fragilidades de cierta forma de globalización política y económica.

本文中,我详细审视了一种特定的话语策略,它试图严格限定阿拉伯起义中的新社会运动。 一套新近兴起的政府和学术话语呼吁阿拉伯世界的发展模式,而非对新形式的政体及替代性经济和社会组织模式开放。我认为,这种模式限定了政治想象力,它是试图在全球政治生活中强加一种特定政治形式的晚期现代逻辑作用的结果。在原始类型的语言中,或通过这种语言,这些社会运动及新兴政体正被驯服,以继承某种形式的政治和经济全球化的紧张与脆弱。     

A Lean Six Sigma framework for the reduction of ship loading commercial time in the iron ore pelletising industry

Evidence suggests that specifically designed frameworks to implement Lean Six Sigma (LSS) projects to tackle particular problems are more effective than ‘generic’ versions. This paper proposes an implementation framework to effectively deploy LSS to improve a key operation and performance indicator, i.e. ship loading commercial time, of one of the largest world producer of iron ore. This article therefore contributes with a refined framework to effectively implement LSS, and documents its successful application and effectiveness within the context of the case organisation. The LSS framework and project contributed in helping the studied organisation to improve both the capability of its ship loading process and commercial time by more than 30%, resulting in operational savings in the range of $300,000 USD per year. The systematic nature of the framework proposed also helped the organisation to establish a standardised routine to improve its operations. Managerial implications exposing the challenges faced during the implementation of LSS are also discussed to serve as lessons learnt to be considered in other LSS projects. Managers and engineers incharge of improving operations and processes can benefit from this paper as it can be used as a guide to direct the conduction of LSS projects and the empirical application of its principles and tools.