1,720,964 research outputs found
Pathways from school to work in the developing world
Abstract
This paper uses novel micro data from the ILO-STWT surveys to provide evidence on the duration, endpoint, and determinants of the transition from school to work in a sample of 23 low- and middle-income countries around the world. The paper analyzes both transition to the first job and to the first stable job. It also illustrates the effects of several correlates, including age of school leaving, gender, work while attending school, and others on the probability of transition and on its duration. The negative effects of low levels of human capital and high levels of population growth on job finding rates are offset by widespread poverty and lack of unemployment insurance, which lead overall to faster transitions in low-income compared to middle-income economies. By lowering reservation wages and speeding transitions, however, these forces lead to worse matches, as measured by the probability of attaining stable employment in the long run, highlighting the trade-off that policy makers face in developing countries.
JEL Classification: J64, 05
Erectile dysfunction and alcohol intake
The objective of this work is to evaluate in a selection of patients with erectile dysfunction the influence of alcohol consumption and the response to alcohol abstinence with and without sildenafil association. Materials and Methods. In a population of 150 consecutive patients with erectile dysfunction we studied 50 patients aged between 22 and 77 years (mean 56±14 SD). These 50 patients were divided into three different treatment groups and were screened for three different levels of alcohol risk with two questionnaires. All patients were evaluated with an International Index Erectile Dysfunction (IIEF) questionnaire before and after one month of treatment. RESULTS. The 50 patients included 14 patients with high alcohol risk, 34 patients with low alcohol risk and only 2 patients with no alcohol risk. After one month, 29 patients responded to the therapy, and 21 did not respond. The IIEF questionnaire presented a statistically significant difference between the different risk groups before and after treatment (p≤0.05). All the patients were examined with a penile Doppler Ultrasound. Only 10 of them had an abnormal diastolic peak velocity (PDV) and only 1 presented both pathologic systolic peak velocity (PSV) and PDV. These 11 patients did not respond to therapies and 10 of them were at high alcohol risk. The alcohol consumption risk was directly correlated with PDV (p=0.00001; R2=0.4). CONCLUSIONS. The results of this study demonstrated a significant relationship between alcohol consumption and erectile dysfunction. This underlines the important therapeutic issue of alcohol abstinence in treating patients with erectile dysfunctio
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Metastasi Occulte In Linfonodi Pelvici Di Pazienti Sottoposti A Prostatectomia Radicale. Incidenza E Significato Prognostico Dopo 11 Anni Di Follow-Up Medio
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