Food Well-Being in Older Adults: Effects of a Universal Non-contributory Pension in Mexico

Social Indicators Research - One of the few universal programs in Latin America is the Food Pension for Adults Older than 68 (PAAM) of Mexico City, which aims to reduce food insecurity while...     

Two new defective distributions based on the Marshall–Olkin extension

The presence of immune elements (generating a fraction of cure) in survival data is common. These cases are usually modeled by the standard mixture model. Here, we use an alternative approach based on defective distributions. Defective distributions are characterized by having density functions that integrate to values less than \(1\), when the domain of their parameters is different from the usual one. We use the Marshall–Olkin class of distributions to generalize two existing defective distributions, therefore generating two new defective distributions. We illustrate the distributions using three real data sets.     

Individual differences in referral for help for severe emotional difficulties in adolescence

Adolescents with emotional distress may find help-seeking an extremely daunting endeavor. However, different adolescent population sectors relate differently to help-seeking for severe emotional difficulties. Gender and ethnic group are among the central factors influencing attitudes towards seeking emotional help. One of the possible mechanisms explaining these cross-group differences is self-esteem. The psychological price of seeking help could be admission of incompetence and feelings of failure, emotions that can be threatening, particularly to adolescents' self-esteem. In the present study, the psychological price of seeking help was manipulated by comparing the ease with which adolescents would self-refer for a severe emotional problem as opposed to referring another for the same problem, and the influence of gender, ethnic group differences and level of self esteem in both situations. The first hypothesis predicting greater ease of referral in the other-referral condition compared to self-referral was confirmed. The second hypothesis predicting general preference of informal help agents than the formal help agents was confirmed. The third hypothesis predicting gender differences such that girls would show higher ease of referral than boys from the different help agents was confirmed. The fourth hypothesis predicting that Jewish-Israeli adolescents would show greater ease of referral than Arab-Israeli adolescents was confirmed. An additional exploratory question examined the interaction between self-esteem and self versus other-referral on ease of referral for help. A significant interaction emerged only for help from the family. Adolescents with low self-esteem showed no differences in self versus other-referral, but adolescents with high self-esteem were more willing to refer others than themselves to seek help. These findings emphasize the importance of a sensitive needs assessment approach in designing mental health service delivery for youth.     

Uncertainty with ordinal likelihood information

We present a model that is closely related to the so-called models of choice under complete uncertainty, in which the agent has no information about the probability of the outcomes. There are two approaches within the said models: the state space-based approach, which takes into account the possible states of nature and the correspondence between states and outcomes; and the set-based approach, which ignores such information, and solves certain difficulties arising from the state space-based approach. Kelsey (Int Econ Rev 34:297–308, 1993) incorporates into a state space-based framework the assumption that the agent has ordinal information about the likelihood of the states. This paper incorporates this same assumption into a set-based framework, thus filling a theoretical gap in the literature. Compared to the set-based models of choice under complete uncertainty we introduce the information about the ordinal likelihood of the outcomes while, compared to Kelsey’s approach, we incorporate the advantages of describing uncertainty environments from the set-based perspective. We present an axiomatic study that includes adaptations of some of the axioms found in the related literature and we characterize some rules featuring different combinations of information about the ordinal likelihood of the outcomes and information about their desirability.     

Myths and realities: From lusotropicalism to ‘total strategy’

Angola Under the Portuguese: The Myth and the Reality, by Gerald Bender. Berkeley and Los Angeles; University of California Press, 1978, xxviii + 287pp. R11–40, pb.     

Towards a people's history

Gold and Workers 1886–1924: A People's History of South Africa Vol. 1 by Luli Callinicos. Johannesburg: Ravan Press, 1981. Drawings by Andy Mason, bibliography, index, references. 112 pp. R3.75.     

Quislings or Realists?

Quislings or Realists? A documentary study of ‘Coloured’ politics in South Africa. Edited by Pierre Hugo. Johannesburg: Ravan Press, 1978. 744 pp. R24.     

The Impact of Multiple Risk Factors on Young Children's Cognitive and Behavioural Development

The paper maps out 10 risk factors measuring deficits in parent–child interaction, family–child interaction and the home environment. The prevalence of risk factor combinations is quantified using the UK Millennium Cohort Study data. In 2001, 28 per cent of families with young children were facing two or more risk factors at age 9–10 months old. Each combination of multiple risk factors accounted for a very small proportion of all MCS families. Specific risk factors were associated with particular developmental outcomes at age 5 and with changes from age 3 to age 5, but all leading to worse outcomes. The great diversity of risk‐factor combinations and their very small prevalence make the tasks of identifying such families and defining eligibility for support very difficult for policy‐makers. These results support the large body of policy literature advocating early intervention to improve children's development.     

The ambivalence of the work of the hotel managers: an approach to ergonomics

This article uses the contributions of ergonomics to understand the work performed by hotel managers. The concern to understand the job of managers is something new in the ergonomics and few studies address this issue, especially in what concerns the work of hotel managers and its aspects of performance and health, which is the focus of this article. Through a literature review on the subject, it is sought to understand the managers' work activity, the impacts on their health and their organizational performance, as managers take an ambivalent position in organizations, since they have to deal directly with the demands of upper and lower hierarchies in a context of high competition, organizational changes and user requirements. It is then inferred there is a risk of increased work density for managers, bringing negative consequences to their health and organizational performance. This phenomenon, still poorly covered by ergonomics, contributes to a certain invisibility of the manager's work in society as a whole, when the manager may suffer from health problems, which are also common in certain populations of workers who do not take the managerial function.