Spéciation chimique des éléments traces métalliques dans un environnement lagunaire confiné: La baie de Bietry

L’analyse des concentrations métalliques déterminées pour les sédiments de la baie de Biétry a permis d’évaluer le niveau de pollution. Les métaux non pollués (classe 0 et 1) sont : Th, Co, V, Ni, Ag et Sb, avec des proportions qui varient de 55 à 70%. Les métaux pollués (classes 2, 3, 5, 6) présentent des proportions variant de 100 à 70%. Il s’agit de Cr, Mo, As, U, Pb, Cd, Zn et Cu. Les résultats des extractions sélectives effectuées ont permis de déterminer le potentiel de mobilité et de disponibilité biologique de ces ETM (Eléments Traces Métalliques) polluants. Ainsi le gradient de biodisponibilité dans la baie de Biétry s’établit comme suit: Ni>Co>Zn et dans une moindre mesure V>Cu>As>Th>Mo>Pb>Sb. Dans les phases porteuses des ETM, la fraction résiduelle est la plus dominante pour tous les métaux à l’exception de Zn et Mo. Du polluant le plus mobile au moins mobile, nous avons obtenu l’ordre suivant: Zn, Ni, Pb, Co, Th, Mo, As, Sb, Cr.Mots clés: Igeo, pollution, biodisponibilité, spéciation métalliqu

Model Infiltrasi pada Berbagai Penggunaan Lahan di Desa Tulo Kecamatan Dolo Kabupaten Sigi

This study aims to determine the model of infiltration at a variety of land uses (land palm plantations, cocoa plantation land, wetland and shrub land) in the village of Tulo, District Dolo, Sigi. Data analysis infiltration rate equation model Horton. Infiltration rate measurements in the field using a double ring infiltrometer are embedded into the ground and then ring in the contents above water until the boundary line. Observation of decreased water level in measuring each interval of 10, 20,30,40,50,60 minutes. Measurement of infiltration repeated three times for each land use. The results showed that the model of infiltration in oil plantation area that is f = 8,2 + (10 – 8,2) e-2,64t, on a cocoa plantation land is f = 8 + (10 - 8) e-2,68t, in paddy fields, namely f = 9,23 + (10 – 9,23) e-5,20t and the shrub land is f = 4 + (10 - 4) e-2,96t. Infiltration in the shrub land quite a bit faster in the amount of 6,56 cm/hour, on a cocoa plantation land classified as being in the amount of 2,06 cm/hour, on a coconut plantation land and wetland quite a bit slower with the infiltration rate of the soil palm plantations amounted to 1,87 cm/hour and a wetland of 0,87 cm/hour

DINAMIKA KARBON (C) AKIBAT ALIH GUNA LAHAN HUTAN MENJADI LAHAN PERTANIAN

Land use changes from forest to agricultural farms have been incessantly occurring in Indonesia. This condition will have harmful effects on nature equilibrium if uncontrolled. Forest can effectively absorbed carbon, in contrast deforestation will result in the release of carbon dioxide (CO2) to the atmosphere. The research results indicated that significant carbon losses have taken place due to forest changes to agricultural farms.  Agro-forestry system can lessen these losses from vegetation, litter, soil and due to soil erosion. Agricultural farm with maize and peanut produced lower carbon than forest and vanilla agro-forestry

Glycoconjugate Data Bank:Structures—an annotated glycan structure database and N-glycan primary structure verification service

Glycobiology has been brought to public attention as a frontier in the post-genomic era. Structural information about glycans has been accumulating in the Protein Data Bank (PDB) for years. It has been recognized, however, that there are many questionable glycan models in the PDB. A tool for verifying the primary structures of glycan 3D structures is evidently required, yet there have been no such publicly available tools. The Glycoconjugate Data Bank:Structures (GDB:Structures, http://www.glycostructures.jp) is an annotated glycan structure database, which also provides an N-glycan primary structure (or glycoform) verification service. All the glycan 3D structures are detected and annotated by an in-house program named ‘getCARBO’. When an N-glycan is detected in a query coordinate by getCARBO, the primary structure of the glycan is compared with the most similar entry in the glycan primary structure database (KEGG GLYCAN), and unmatched substructure(s) are indicated if observed. The results of getCARBO are stored and presented in GDB:Structures

Providing medical care for undocumented migrants in Denmark: what are the challenges for health professionals?

<p>Abstract</p> <p>Background</p> <p>The rights of undocumented migrants are frequently overlooked. Denmark has ratified several international conventions recognizing the right to health care for all human beings, but has very scanty legislation and no existing policies for providing health care to undocumented migrants. This study focuses on how health professionals navigate and how they experience providing treatment for undocumented migrants in the Danish health care system.</p> <p>Methods</p> <p>The study was carried out as part of an EU-project on European Best Practices in Access, Quality and Appropriateness of Health Services for Immigrants in Europe (EUGATE). This presentation is based on 12 semi-structured interviews with general practitioners (9) and emergency room physicians (3) in Denmark.</p> <p>Results</p> <p>The emergency room physicians express that treatment of undocumented migrants is no different from the treatment of any other person. However, care may become more complicated due to lack of previous medical records and contact persons. Contrary to this, general practitioners explain that undocumented migrants will encounter formal barriers when trying to obtain treatment. Additional problems in the treatment of undocumented migrants include language issues, financial aspects for general practitioners, concerns about how to handle the situation including possibilities of further referrals, and an uncertainty as to whether to involve the police.</p> <p>Conclusions</p> <p>The health professionals in our study describe that undocumented migrants experience an unequal access to primary care facilities and that great uncertainties exist amongst health professionals as how to respond in such situations. The lack of official policies concerning the right to health care for undocumented migrants continue to pass on the responsibility to health professionals and, thereby, leaves it up to the individual to decide whether treatment can be obtained or not.</p