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1.
Int Health ; 4(3): 192-9, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24029399

RESUMO

We conducted a qualitative research study in Chhattisgarh State, India, to explore why some qualified medical practitioners decide to stay on in government rural service. The fieldwork consisted of in-depth interviews with 37 practitioners who had an established record of rural service, and data were analyzed using the 'framework' approach for applied policy research. Study participants cited complexes of reasons for staying on, including geographical and ethnic (tribal) affinities, rural upbringing, availability of schools, personal values of service, professional interests, co-location with spouses, and relations with co-workers. Extrinsic (environmental) and intrinsic (personal) factors both play a part in determining the decisions of doctors to stay on, and are interdependent. Some doctors were influenced to remain by the close relationships they had developed with local communities and their acclimatisation over time to rural life. The policy imperative of rural workforce adequacy may be served less by choosing one retention strategy over another than by developing multi-dimensional solutions focused simultaneously on identifying and incentivising rural practitioners with appropriate characteristics, and on creating external conditions for their improved performance and welfare. Further, in a low-income setting such as India, questions of rural workforce adequacy cannot be addressed in isolation, but need to be tackled as part of broad agenda of social development that include strengthening public service systems and empowering communities.

2.
Sci Total Environ ; 408(10): 2273-82, 2010 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-20178886

RESUMO

We describe a novel combustion synthesis for the preparation of Nanomagnesia (NM) and its application in water purification. The synthesis is based on the self-propagated combustion of the magnesium nitrate trapped in cellulose fibers. Various characterization studies confirmed that NM formed is crystalline with high phase purity, and the particle size varied in the range of 3-7nm. The fluoride scavenging potential of this material was tested as a function of pH, contact time and adsorbent dose. The result showed that fluoride adsorption by NM is highly favorable and the capacity does not vary in the pH range usually encountered in groundwater. The effects of various co-existing ions usually found in drinking water, on fluoride removal were also investigated. Phosphate was the greatest competitor for fluoride followed by bicarbonate. The presence of other ions studied did not affect the fluoride adsorption capacity of NM significantly. The adsorption kinetics followed pseudo-second-order equation and the equilibrium data are well predicted by Frendlich equation. Our experimental evidence shows that fluoride removal happened through isomorphic substitution of fluoride in brucite. A batch household defluoridation unit was developed using precipitation-sedimentation-filtration techniques, addressing the problems of high fluoride concentration as well as the problem of alkaline pH of the magnesia treated water. The method of synthesis reported here is advantageous from the perspectives of small size of the nanoparticle, cost-effective recovery of the material and improvement in the fluoride adsorption capacity.


Assuntos
Fluoretos/química , Óxido de Magnésio/síntese química , Nanopartículas Metálicas/química , Eliminação de Resíduos Líquidos/métodos , Poluentes Químicos da Água/química , Purificação da Água/métodos , Adsorção
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