Promoting an endogenous approach to education at the local community level

A major postulate of this paper is that education is a subordinate component in a larger system of societies’ development. This means that any educational policy for any country should stem from a long‐term strategy to support this aim. The main focus of the study that this paper is based on is to develop a theoretical framework that identifies an educational model which would support endogenous development at the local community level. This framework is ‘indigenous community‐based education’. It is analysed in terms of its indigenous features and sharing applications, with reference to actual experiences of communities who have undertaken this type of programme.     

Beginning street life: Factors contributing to children working and living on the streets of Khartoum, Sudan

Understanding why some children work on the streets while others live there, and how causal factors differ by gender, is important in developing effective services for them. This study examined these questions in Sudan using participant observation, qualitative interviews, and surveys of working boys (n = 1025), working girls (n = 192), street boys (n = 397), and street girls (n = 35). Street children were less likely than working children to have local families (66% and 77%, p < 0.001), and more likely to have experienced some prior hardships, e.g. a mother's death (17% and 10%, p < 0.001), or coming from the war-torn south (30% and 10%, p < 0.001). 70% of street children and 10% of working children had abused (i.e. sniffed and sucked) glue (p < 0.001); initiating glue abuse often coincided with a transition from working to living on the streets. Within groups, conditions ‘pushing’ girls to street life were often harsher than for boys. For working girls, these included death of both parents (10% and 3%, p < 0.001), and/or insufficient food at home (59% and 43%, p < 0.001). For street girls, they included having a homeless family (23% and 9%, p = 0.019), and/or insufficient food at home (63% and 40%, p = 0.008), but street girls also more often reported boredom at home (80% and 48%, p < 0.001). Services should be tailored to the particular needs of each group by gender, including community-based prevention, street-based health and safety interventions, and street child counseling and re-integration programs.     

House demolition and mental health: Victims and witnesses

The research examines the immediate effects of losing one’s home and witnessing the demolition of others houses on the mental health of Palestinian adults and children. The loss group consisted of 47 adults whose homes were demolished, the witness group of 24 adults who witnessed the house demolition, and the control group of 33 adults. The groups were compared for their anxiety, depression, and paranoiac symptoms. In addition, 38 children in the loss group, 36 children in the witness group, and 50 children in the control group were compared for their psychological symptoms. The results showed that adults who were exposed to house demolition showed a higher level of anxiety, depression, and paranoiac symptoms than the witness and control groups. The children in the loss group showed a higher level of psychological symptoms than the children in the witness and control groups. The witness group differed from the control group in having more depression among women and from anxiety, depression, and paranoiac symptoms than men in the loss and witness groups but not in the control group.     

Multiple non linear regression model for the maximum number of migratory bird types during migration years

Since many years scientists have carried out researches about bird migration, but due to the large number of bird types estimated at around 10,000 in the world, it is not easy to predict the maximum number of migratory bird types through limited number of migration years. In this study, a multiple non linear regression model of maximum number probability function of migratory bird types has been obtained and can be used in the prediction of the maximum number of migratory bird types during any migration years.     

Evaluation of the location of cities in terms of land cover on the example of Poland

Urban Ecosystems - The increasing availability of remote sensing materials of varying spatial resolution inclines to look for methods enabling their use, both at planning the spatial structure of...     

Conditional tests in a competing risks model

Testing for equality of competing risks based on their cumulative incidence functions (CIFs) or their cause specific hazard rates (CSHRs) has been considered by many authors. The finite sample distributions of the existing test statistics are in general complicated and the use of their asymptotic distributions can lead to conservative tests. In this paper we show how to perform some of these tests using the conditional distributions of their corresponding test statistics instead (conditional on the observed data). The resulting conditional tests are initially developed for the case of k = 2 and are then extended to k > 2 by performing a sequence of two sample tests and by combining several risks into one. A simulation study to compare the powers of several tests based on their conditional and asymptotic distributions shows that using conditional tests leads to a gain in power. A real life example is also discussed to show how to implement such conditional tests.     

Does self-employment contribute to national happiness?

Recent studies showed that self-employment impacts individual happiness either positively or negatively. Rather than considering the happiness effects at the individual level, we assess whether self-employment effects spread and impact the domestic happiness beyond the involved individuals. We distinguish a direct effect of self-employment on life satisfaction and an indirect effect through the impact of self-employment on per capita income and the subsequent impact of income on life satisfaction. Using panel data analysis for 15 OECD countries over a period of 18 years, we investigate empirically whether countries with higher levels of self-employment are happier, by disentangling the two previously mentioned effects. We remedy the potential endogeneity problem when estimating the indirect effect by instrumenting the self-employment rate. The main finding is a significant and negative direct effect which is larger in magnitude than the indirect effect, resulting in an overall negative effect of self-employment on the domestic happiness.     

On the contribution of sectoral natural population growth to the aggregate poverty change

This note extends the Ravallion and Huppi (World Bank Econ Rev 5(1):57–82, 1991) aggregate poverty change decomposition to account for the distinct contribution of migration and differential natural population growth between sectors to the aggregate poverty change. We apply our decomposition to three Least Developing countries. We find that accounting for sectoral difference in natural population growth has a considerable impact on national poverty change. Responsible editor: Alessandro Cigno