Learning from tradition: the planning of residential neighborhoods in a changing world

This paper analyses the community values of residential neighborhoods in the southwestern region of Saudi Arabia as an approach to a new theory in urbanism. The indigenous masterbuilders and tribemen incorporated planning decisions pertinent to climatic, cultural, social, economic and religious factors when designing physical elements in their built environment. This is what makes every traditional settlement in the southwest region of Saudi Arabia unique in terms of urban form and social structure. As a step to examining and evaluating the process of residential neighborhood development, three stages of practiced urbanism are discussed. These stages are labelled “vernacular”, “transitional” and “new vernacularism”. These are planning concepts used worldwide in the development of residential neighborhoods throughout history until the present. “New Vernacularism” is envisioned in this investigation as a design/planning objective implemented in most recently planned neighborhoods in Al-Horaidhah, Southwest Saudi Arabia. The achievement of successful urbanism underlies the political goals of urban planning practice. The Al-Horaidhah planning concept is conceived in the light of preservation of community values in neighborhood design/planning as a critical issue.The paper aims to investigate and reconcile the conflicts in the planning of residential neighborhoods in a changing world. The conflicts are restricted between retaining traditions of architecture, urban design and planning with the necessary social, economic, and technological changes in urban formation, mainly, the vernacular and modern. The paper illustrates the concept “New Vernacularism” by presenting Al-Horaidhah scheme as a model for community development in three administrative regions along the Red Sea coastline. “New Vernacularism” as a planning concept looks at the community development in Al-Horaidhah in the light of Sharicah, the Islamic Law and Customary norms by emphasizing the importance of the involvement of local residents in the planning process and gives suggestions of how this might best be achieved and later implemented into new communities.     

On a further generalization of the savage test

A statistic based on the frequencies within the k+1 intervals specified by k arbitrary quantiles is proposed for a LMP test against Lehmann alternatives generalizing the Savage test for the two-sample problem. The maximum efficiency relative to the Savage test for optimally chosen k quantiles is also provided for k=l(2)l5. The asymptotic normality of the statistic follows from the asymptotic multinomial distribution of the frequencies in the classes determined by the k quantiles.     

Simplified estimation of the parameters of exponential distribution from samples censored in the middle

This paper presents the small sample optimum choice of k ≤n + r₁ ? r₂ + 1) order statistics for the best linear unbiased estimates (BLUES) of the parameters μ and σ or σ alone ( μ known) when the sample is Type II censored in the middle retaining only r₁ lower and n - r₂ + 1 upper order statistics. For n = 3(1)10, k = 2(1)4, r₁ = O(1) (n?2) and r₂ = (r₁ +2) (l)n, the optimum ranks, the coefficients of the BLUEs have been presented in Table I     

Sex hormones, neurotransmitters, and psychopharmacological treatments in men with paraphilic disorders

Paraphilic disorders are psychiatric syndromes primarily characterized by deviant sexual thoughts, cravings, urges, and/or behaviors. Paraphilic men may engage in inappropriate sexual behaviors when cravings for socially unacceptable sexual acts become overpowering. These often chronic disorders may not only cause emotional distress and social embarrassment to the afflicted patient but also to the targets of their paraphilic focus. The primary objective of this article is to examine and review data on the efficacy and tolerability of the testosterone-lowering agents medroxprogesterone acetate, cyproterone acetate, and leuprolide acetate. The secondary goal is to review data on less conventional and more innovative pharmacological treatments, particularly the serotonin-specific reuptake inhibitors.     

Perceptions of geography students in the USA and Egypt on global issues

The study aimed to compare the perceptions of Egyptian and US students on global issues. The authors developed a survey of global issues and administered it to sample of 321 Geography students in the USA and Egypt. The survey tapped five issues: global citizenship, cultural diversity, global conflicts, nuclear arms race, and global warming. The results showed that there were significant differences in Egyptian and US students’ perception of each of the global issues.     

Disrupting Management Research? Critical Reflections on British Journal of Management COVID-19 Research and an Agenda for the Future

Research interest in extreme contexts was growing before the COVID-19 pandemic and has intensified since. The climate crisis, significant geo-political conflict, political polarization and upheaval, and economic/financial crises that present existential challenges to organizations have all contributed to rising interest in extreme-context research. COVID-19 itself has generated an enormous body of research across all sub-fields of management. However, the substantive, methodological and conceptual implications of this large volume of research remain unclear. In this introduction to the British Journal of Management COVID-19 Online Virtual Issue, we describe and analyse COVID-19 research so far published in the British Journal of Management. The Journal was proactive in seeing the profound implications of COVID-19 for management research and practice, issuing an early call for contributions, and publishing several exploratory commentaries as early as July 2020. In this paper, we situate COVID-19 research within the broader extreme-context research, analyse contributions made so far, and build upon an extended taxonomy of extreme contexts to suggest ways for future research to generate further impactful insights.     

Accounting for phase I sampling variability in the performance of the MEWMA control chart with estimated parameters

In this article, we assess the performance of the multivariate exponentially weighted moving average (MEWMA) control chart with estimated parameters while considering the practitioner-to-practitioner variability. We evaluate the chart performance in terms of the in-control average run length (ARL) distributional properties; mainly the average (AARL), the standard deviation (SDARL), and some percentiles. We show through simulations that using estimates in place of the in-control parameters may result in an in-control ARL distribution that almost completely lies below the desired value. We also show that even with the use of larger amounts of historical data, there is still a problem with the excessive false alarm rates. We recommend the use of a recently proposed bootstrap-based design technique for adjusting the control limits. The technique is quite effective in controlling the percentage of short in-control ARLs resulting from the estimation error.     

Evaluating the consistency of scales used in adult attention deficit hyperactivity disorder assessment of college-aged adults

Objective: Neurocognitive evaluations are commonly integrated with clinical assessment to evaluate adult Attention Deficit Hyperactivity Disorder (ADHD). Study goal is to identify measures most strongly related to ADHD diagnosis and to determine their utility in screening processes. Participants: 230 students who were evaluated at the Vanderbilt University Psychological and Counseling Center between July 2013 and October 2015. Methods: We retrospectively examined charts, including clinical diagnosis, family history, childhood parental reported and current self-reported ADHD symptoms, psychiatric comorbidities, and continuous performance test (CPT). Result: Positive report of childhood and current ADHD symptoms, and lack of comorbid psychiatric symptoms were strongly associated with clinical diagnosis. CPT results were not associated with an ADHD diagnosis. The absence of reported childhood and current ADHD symptoms may serve as a contradictory marker for ADHD diagnosis. Conclusion: Clinical assessment of ADHD symptoms and ADHD childhood history, but not CPT, contributes to an accurate diagnosis of ADHD in college-aged adults.     

On the comparison of the pre-test and shrinkage estimators for the univariate normal mean

The estimation of the mean of an univariate normal population with unknown variance is considered when uncertain non-sample prior information is available. Alternative estimators are defined to incorporate both the sample as well as the non-sample information in the estimation process. Some of the important statistical properties of the restricted, preliminary test, and shrinkage estimators are investigated. The performances of the estimators are compared based on the criteria of unbiasedness and mean square error in order to search for a ‘best’ estimator. Both analytical and graphical methods are explored. There is no superior estimator that uniformly dominates the others. However, if the non-sample information regarding the value of the mean is close to its true value, the shrinkage estimator over performs the rest of the estimators. Received: June 19, 1999; revised version: March 23, 2000