Minimal neighbor designs in circular blocks of unequal sizes

Neighbor designs have their own importance in the experiments to remove the neighbor effects where the performance of a treatment is affected by the treatments applied to its adjacent plots. If each pair of distinct treatments appears exactly once as neighbors, neighbor designs are called minimal. Most of the neighbor designs require a large number of blocks of equal sizes. In this situation minimal neighbor designs in unequal block sizes are preferred to reduce the experimental material. In this article some series are presented to construct minimal neighbor designs in circular blocks of unequal sizes.     

Some series of proper generalized neighbor designs

Neighbor balanced designs are used to remove the neighbor effects but most of these designs require a large number of blocks. To neutralize the neighbor effects in such situations, GN₂-designs are most desirable. This article deals with the (i) refinement of some series of GN₂-designs constructed by Zafaryab et al. (2010) and (ii) construction of some new series of GN₂-designs in circular blocks of equal size.     

Living in the city: school friendships,diversity and the middle classes

Much of the literature on the urban middle classes describes processes of both affiliation (often to the localities) and disaffiliation (often from some of the non‐middle‐class residents). In this paper, we consider this situation from a different position, drawing on research exploring whether and how children and adults living in diverse localities develop friendships with those different to themselves in terms of social class and ethnicity. This paper focuses on the interviews with the ethnically diverse, but predominantly white British, middle‐class parent participants, considering their attitudes towards social and cultural difference. We emphasize the importance of highlighting inequalities that arise from social class and its intersection with ethnicity in analyses of complex urban populations. The paper's contribution is, first, to examine processes of clustering amongst the white British middle‐class parents, particularly in relation to social class. Second, we contrast this process, and its moments of reflection and unease, with the more deliberate and purposeful efforts of one middle‐class, Bangladeshi‐origin mother who engages in active labour to facilitate relationships across social and ethnic difference.     

Impact of Political Risk and Uncertainty on FDI in South Asia

This study examines the potential effect of political risk and macroeconomic policy uncertainty on FDI in South Asia. To highlight the affect of political risk and macro policy uncertainty on FDI, we setup a theoretical framework based on oligopolistic and imperfect competition environment in host country. Autoregressive distributed lags (ARDL) is used to examine the impact of political risk and macro economic policy uncertainty index on FDI inflows. Macroeconomic policy uncertainty and political risk indices are constructed for this purpose. The long run results show negative affect of political risk and macroeconomic policy uncertainty indices on FDI inflows. Trade openness shows positive effect on FDI inflows only in short run while in long run it has negative impact on due lack of creditability regarding consistent trade liberalization policy and high trade cost. Furthermore, the market size significantly affects the inflow of FDI both in long run and short run which shows that FDI inflows in South Asia are mainly depend on market size. South Asian economies need to focus on political and macroeconomic factors along with FDI incentives policies to attract more FDI.     

A new way to order independent components

A relatively newer computational technique adopted by statisticians is known as independent component analysis (ICA) which is used to analyze complex multidimensional data with the objective to separate it into components that are independent to each other. Quite often the main interest for conducting ICA is to identify a small number of significant independent components (ICs) to replace the original complex dimensions with. For this, determining the order of identified ICs is a pre-requisite. The area is not unaddressed but it does deserve a careful revisiting. This is the subject matter of the paper which introduces a new method to order ICs. The proposed method is based upon regression approach. It compares the magnitude of the mixing coefficients and regression coefficients of the regression of the original series on ICs. Their compatibility determines the order.     

Universally Optimal Designs Balanced for Neighbor Effects

The performance of a treatment is affected by the treatments applied to its adjacent plots, especially in the experiments of agriculture, horticulture, forestry, serology and industry. Neighbor designs ensure that treatment comparisons are least affected by neighbor effects, therefore, this is a rich field of investigation. In this paper, criterion for construction of universally optimal neighbor balanced designs is discussed.     

Do we follow others when we should outside the lab? Evidence from the AP top 25

We use data from the Associated Press college American football poll to analyze two types of ex-post optimality of social learning in a non-lab setting. The poll is a weekly subjective ranking of the top 25 teams, voted on by over 60 sports journalists. Voters potentially can learn from their peers by observing the aggregate ranks before updating their individual ranks. Our results indicate that, while voters do learn from their peers to some extent, the informativeness of peer ranks appears to be under-valued.     

Emotional Support for Health Care Professionals: A Therapeutic Role for the Hospital Ethics Committee

Hospital ethics committees (HECs) are typically charged with addressing ethical disputes, conflicts, and dilemmas that arise in the course of patient care. HECs are not widely viewed as having a therapeutic role for health care professionals who experience psychological distress or anticipatory grief in the course of discharging professional duties. A case is presented in which an ethics consultation was requested, chiefly, to secure emotional support for health care professionals who had been asked by a patient to discontinue life-sustaining treatments. As the case demonstrates, HECs may be called upon to provide emotional support and reassurance to health care professionals who willingly carry out psychologically difficult actions, even though these actions may be ethically uncontroversial. In providing this service, the HEC may not necessarily engage in its customary activity of deliberating an ethics issue and resolving a conflict but may still provide valuable assistance, as in the case presented.     

McDonaldization, Islamic teachings, and funerary practices in Kuwait

Drawing on George Ritzer's sociological concept of McDonaldization, this article explores the transformation of burial practices in Kuwait. It is argued that traditional, religious, and private ways of dealing with death have been modernized using the fast-food model of McDonald's. This article examines Islamic teachings on burial and how that model has been applied to the traditional Muslim funerary services, including cemetery management, grave excavation, funeral prayers, burial, and condolences, to make them more efficient vis-a-vis more profitable. Based on personal observations and random interviews, the study finds that the state bureaucracy in Kuwait has made burial rituals more efficient, standardized, calculable, and controlled. Furthermore, several associated irrationalities are also considered. Findings suggest that some individuals may not be happy with these changes but there is no popular resistance to McDonaldization of the burial practices, probably due to the authoritarian and welfare nature of the State of Kuwait.