327 research outputs found
Principales aspectos destacables de políticas, instituciones e instrumentos de ciencia, tecnología e innovación de las últimas décadas en Sudáfrica
Fil: Quiroga, Juan M. Universidad Nacional de Río Negro. Sede Andina. Centro de Estudios en Ciencia, Tecnología, Cultura y Desarrollo (CITECDE); ArgentinaFil: Versino, Mariana S. Universidad de Buenos Aires; Argentina.Parte del Informe "Análisis de la evolución reciente de las políticas, instrumentos e instituciones de ciencia, tecnología e innovación (CTI) en Brasil, Chile, Nueva Zelanda, Sudáfrica y España. Reflexiones y lecciones para
Argentina." URL: http://www.ciecti.org.ar/wp-content/uploads/2017/01/CIECTI-Proyecto-UNRN-UBA.pdfSudáfrica es la economía más importante del continente africano. Con una población de 54 millones de habitantes para el año 2014, lo que representa aproximadamente el 5,5 % de la población total del continente africano al sur del Sahara, da cuenta del 20% de dicha economía en términos del PBI total generado. Tiene un ingreso nacional bruto per cápita de US 1.638 para el resto de la economía africana sub-sahariana (World Bank, 2016).
Se caracteriza por ser un país con una enorme diversidad de culturas, idiomas y creencias religiosas, lo que le ha valido la denominación de “nación del arcoíris”. Once idiomas son reconocidos como oficiales por la Constitución de Sudáfrica. En mayo de 1994 se retorna a un sistema de gobierno democrático y Nelson Mandela asume el gobierno. Desde 1998, Sudáfrica es un país miembro del Commonwealth y miembro observador de la OECD, estatus que le había sido denegado durante la vigencia del apartheid (Kahn, 2006).
El Sistema Nacional de Innovación sudafricano cuenta con instituciones de investigación y desarrollo públicas, así como con sectores empresariales sólidos en términos de sus capacidades de producción de conocimientos científicos y tecnológicos. Antes de 1994, las políticas científicas eran llevadas a cabo por una rama del Department of National Education. Por su lado, el Science Advisory Council ejercía funciones de consejería en materia científica a los mayores niveles gubernamentales. Los consejos científicos eran un brazo ejecutor de los mandatos gubernamentales, siendo el sistema científico-militar-universitario un eficiente proveedor de soluciones a las necesidades derivadas de la búsqueda de autosuficiencia en el campo militar. La situación comenzó a cambiar hacia fines de la década de 1980 cuando se inició el desmantelamiento del aparato militar de I+D, y los consejos científicos debieron buscar alternativas de financiamiento (Kahn, 2006).
En este informe han sido tomados en cuenta los hitos más significativos en lo referente a la definición de políticas, creación de instituciones e instrumentos de CTI en Sudáfrica desde el fin del régimen del apartheid, que implicó un cambio drástico y fundamental en las políticas de este país, tanto hacia dentro de sus fronteras como también hacia el exterior
Gender health and policies: the state of the art from exposure to solutions
Objective. To synthesize the determinants of gender inequalities through a narrative review that: (i) describes gender related var- iables that can create different levels of health; (ii) describes key points that may assist in policy development and its reorientation towards gender differences; (iii) debates potential approaches in understanding gender issues.
Methods. Review of the international literature through online databases (Pubmed), search engines, publications and documents from ?grey literature?. Inclusion criteria: publications from 1997, English language; keywords used: gender based analysis; gender and public policy; women?s health; gender differences; health policy; gender impact assessment. Among the 300 papers retrieved, 55 were selected for relevance.
Results. We performed a narrative synthesis of the included literature, regarding: (i) gender differences and their determi-nants; (ii) elements for the changing; (iii) possible approaches; (iv) gender influences the pursuit of health and health care access through specific variables; (v) health policies can modify these variables only by a minimal percentage. These interventions should guarantee equity and allow efficient resources allocation. The gap between political announce- ments and real policy implementation remains unchanged. (vi) Standard approaches to the topic are not feasible due to the scarcity of a specific literature and the numerous cultural differences.
Conclusions. Gender analysis of policies suggests they can dif- ferently affect women in comparison to men. However, reforms, strategies and interventions introduced in the last two decades, have achieved a limited success towards better gender equality in health. The main aim is to attack the structural sources of gender inequity in the society
A Systematic Review on Materno-Foetal Outcomes in Pregnant Women with IgA Nephropathy: A Case of “Late-Maternal” Preeclampsia?
Background: IgA nephropathy is the most common primary glomerulonephritis in pregnancy and shares with other immunologic diseases and kidney diseases a relationship with adverse maternal outcomes, whose entity and pattern is only partially quantified. Recent studies provide new information and a systematic review regarded progression of kidney disease. The discussion of the outcomes with respect to low-risk pregnancies may help to perfect the estimation of the risks, and to identify specific research needs. Methods: A search strategy was built on Medline, EMBASE and the Cochrane review for the period January 2000-April 2017, aimed at retrieving both case series (defined as with at least 6 pregnancies in women with IgA nephropathy) and case reports, to look into rare occurrences. All papers, with or without control groups, were selected if they reported on at least one pregnancy outcome, or on long-term kidney function. Search strategy, paper selection and data extraction were done in duplicate (PROSPERO N 42016042623). Meta-analysis of case series was performed with Metanalyst Beta 3.13. Case reports were analysed narratively. Results: The search retrieved 556 papers, of which 27 were included (13 series and 14 case-reports). The case series report on 581 women with 729 pregnancies. The analysis was performed in comparison to the available control groups: 562 non-pregnant controls were available for the analysis of progression of kidney disease. As for pregnancy related outcomes (preeclampsia (PE), pregnancy induced hypertension (PIH), preterm birth, small babies), we meta-analyzed the data with respect to the only series of low-risk pregnancies (1418 pregnancies). When compared with women who never got pregnant after diagnosis of IgA nephropathy, in the present meta-analysis pregnancy in women with IgA nephropathy was not associated with a higher risk of progression of kidney disease, possibly due to the overall preserved kidney function at baseline: end-stage kidney disease (OR 0.68; CI 0.28-1.65). Conversely, the incidence of adverse pregnancy-related outcomes was increased compared to low-risk controls: PE and PIH were more than ten-fold increased (OR 11.80; CI 7.53-18.48 and OR 10.39; CI 5.45-19.80), while the increase in risk of preterm birth and "low birth weight babies" was less marked (OR 3.37; CI 1.91-5.95 and OR 2.36; CI 1.52-3.66), a discrepancy suggesting the occurrence of "late" or "maternal" PE, that may affect less severely foetal growth or shorten gestation. In conclusion, in the present meta-analysis IgA nephropathy was not associated with an increased progression of kidney disease. The more than ten-fold increased risk of PIH and PE, in combination with a doubled risk of small babies, suggests the occurrence of "late" or "maternal" PE, usually less affecting early foetal growth. This finding may be of help in defining control policies, while further research is needed to guide clinical management
Over 1200 drugs-related deaths and 190,000 opiate-user-years of follow-up : relative risks by sex and age-group
Heroin users/injectors' risk of drugs-related death by sex and current age is weakly estimated both in individual cohorts of under 1000 clients, 5000 person-years or 50 drugs-related deaths and when using cross-sectional data. A workshop in Cambridge analysed six cohorts who were recruited according to a common European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) protocol from drug treatment agencies in Barcelona, Denmark, Dublin, Lisbon, Rome and Vienna in the 1990s; and, as external reference, opiate-user arrestees in France and hepatitis C diagnosed ever-injectors in Scotland in 1993-2001, both followed by database linkage to December 2001. EMCDDA cohorts recorded approximately equal numbers of drugs-related deaths (864) and deaths from other non-HIV causes (865) during 106,152 person-years of follow-up. External cohorts contributed 376 drugs-related deaths (Scotland 195, France 181) and 418 deaths from non-HIV causes (Scotland 221, France 197) during 86,417 person-years of follow-up (Scotland 22,670, France 63,747). EMCDDA cohorts reported 707 drugs-related deaths in 81,367 man-years {8.7 per 1000 person-years, 95% CI: 8.1 to 9.4} but only 157 in 24,785 person-years for females {6.3 per 1000 person-years, 95% CI: 5.4 to 7.4}. Except in external cohorts, relative risks by current age-group were not particularly strong, and more modest in Poisson regression than in cross-sectional analyses: relative risk was 1.2 (95% CI: 1.0-1.4) for 35-44 year olds compared to 15-24 year 3 olds, but 1.4 for males (95%CI: 1.2-1.6), and dramatically lower at 0.44 after the first year of follow-up (95% CI: 0.37-0.52)
Climatic Feedbacks and Desertification: The Mediterranean Model
Abstract
Mesometeorological information obtained in several research projects in southern Europe has been used to analyze perceived changes in the western Mediterranean summer storm regime. A procedure was developed to disaggregate daily precipitation data into three main components: frontal precipitation, summer storms, and Mediterranean cyclogenesis. Working hypotheses were derived on the likely processes involved. The results indicate that the precipitation regime in this Mediterranean region is very sensitive to variations in surface airmass temperature and moisture. Land-use perturbations that accumulated over historical time and greatly accelerated in the last 30 yr may have induced changes from an open, monsoon-type regime with frequent summer storms over the mountains inland to one dominated by closed vertical recirculations where feedback mechanisms favor the loss of storms over the coastal mountains and additional heating of the sea surface temperature during summer. This, in turn, favors Mediterranean cyclogenesis and torrential rains in autumn–winter. Because these intense rains and floods can occur anywhere in the basin, perturbations to the hydrological cycle in any part of the basin can propagate to the whole basin and adjacent regions. Furthermore, present levels of air pollutants can produce greenhouse heating, amplifying the perturbations and pushing the system over critical threshold levels. The questions raised are relevant for the new European Union (EU) water policies in southern Europe and for other regions dominated by monsoon-type weather systems
A follow-up study of heroin addicts (VEdeTTE2): study design and protocol
BACKGROUND: In Italy, a large cohort study (VEdeTTE1) was conducted between 1998–2001 to evaluate the effectiveness of treatments in reducing mortality and increasing treatment retention among heroin addicts. The follow-up of this cohort (VEdeTTE2) was designed to evaluate the effectiveness of treatments on long-term outcomes, such as rehabilitation and social re-integration. The purpose of this paper is to describe the protocol of the VEdeTTE2 study, and to present the results of the pilot study carried out to assess the feasibility of the study and to improve study procedures. METHODS: The source population for the VEdeTTE2 study was the VEdeTTE1 cohort, from which a sample of 2,200 patients, traced two or more years after enrolment in the cohort, were asked to participate. An interview investigates drug use; overdose; family and social re-integration. Illegal activity are investigated separately in a questionnaire completed by the patient. Patients are also asked to provide a hair sample to test for heroin and cocaine use. Information on treatments and HIV, HBV and HCV morbidity are obtained from clinical records. A pilot phase was planned and carried out on 60 patients. RESULTS: The results of the pilot phase pointed out the validity of the procedures designed to limit attrition: the number of traced subjects was satisfactory (88%). Moreover, the pilot phase was very useful in identifying possible causes of delays and attrition, and flaws in the instruments. Improvements to the procedures and the instruments were subsequently implemented. Sensitivity of the biological test was quite good for heroin (78%) but lower for cocaine (42.3%), highlighting the need to obtain a hair sample from all patients. CONCLUSION: In drug addiction research, studies investigating health status and social re-integration of subjects at long-term follow-up are lacking. The VEdeTTE2 study aims to investigate these outcomes at long-term follow-up. Results of the pilot phase underline the importance of the pilot phase when planning a follow-up study
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