Éditeur(s) : Paris : Imp. Geny-gros
Extrait de : La femme dans les colonies françaises : études sur les moeurs au point de vue myologique et social (Entre p. 34 & 35)
Résumé : Une rue où on peut voir marcher 2 femmes : l'une qui porte une cruche et l'autre porte le voile.

Permalien : http://www.manioc.org/images/SCH132790061i1
SCH132790061i1

Éditeur(s) : Direction Générale des Travaux Publics Direction Générale des Travaux Publics ( Haiti )
Résumé : This collection of over 5,000 black and white photographs held by the National Archives of Haiti dates from 1918 to 1945. It contains images of public buildings before and after restoration, public works, monuments, and the visits of U.S. Presidents and other officials.
Haiti

Droits : All rights reserved by the National Archives of Haiti.
7723

Éditeur(s) : Direction Générale des Travaux Publics Direction Générale des Travaux Publics ( Haiti )
Résumé : This collection of over 5,000 black and white photographs held by the National Archives of Haiti dates from 1918 to 1945. It contains images of public buildings before and after restoration, public works, monuments, and the visits of U.S. Presidents and other officials.
Haiti

Droits : All rights reserved by the National Archives of Haiti.
7724

Éditeur(s) : Direction Générale des Travaux Publics Direction Générale des Travaux Publics ( Haiti )
Résumé : This collection of over 5,000 black and white photographs held by the National Archives of Haiti dates from 1918 to 1945. It contains images of public buildings before and after restoration, public works, monuments, and the visits of U.S. Presidents and other officials.
Haiti

Droits : All rights reserved by the National Archives of Haiti.
11946

Éditeur(s) : HAL CCSD Elsevier
Résumé : International audience
Orogenic lherzolites exhibit a specific (although reproducible) platinum-group element signature characterized by slight positive deviations of Pd/Ir, Rh/Ir and Ru/Ir ratios from the canonical chondritic model. Such a signature was alternatively considered to be a compositional feature of the primitive upper mantle or resulting from sulfide melt addition by refertilisation reactions in the continental lithosphere. To shed additional light on this conundrum, the distribution of PGE in FON B 93, an unserpentinized, fertile (3.24% Al2O3) orogenic lherzolite (French Pyrenees) used as in-house standard by our group, has been studied to different scales, from the bulk rock to trace minerals. In addition to new ICPMS analyses after separation into Nis and Te coprecipitation, its whole-rock PGE concentrations were redetermined by three different laboratories using very precise ID-ICP-MS methods after digestion of the sample in Carius tube at T=250 degrees C and 320 degrees C or in high-pressure asher (HPA-S). The four methods produce reproducible Ru, Rh and Pd contents (7.1 +/- 0.18 ppb; 1.43 +/- 0.05 ppb; 7.1 +/- 0.30 ppb) whereas the non-ID NiS-fire assay method underestimates the Os and Ir concentrations by c.a. 10 and 15% compared to ID-ICP-MS analyses (4.40 +/- 0.07 and 4.00 +/- 0.17 ppb, respectively). Platinum was the most difficult to analyse. If performed on powder aliquots smaller than 3 g, the ID-ICP-MS analyses generate strong nugget effects while the non-ID NiS-fire assay method yields statistically lower (but highly reproducible) Pt concentrations (6.92 +/- 0.26 ppb). These features reflect the strong partitioning of Pt into trace phases that SEM and laser ablation-ICP-MS analyses on thin sections identify as both high-temperature Pt-Ir-Os alloys and Pt-(Pd) tellurides of likely subsolidus origin; ten to fifteen grains ranging in maximum dimension from a few micrometres to a few hundreds of nanometers, were identified by standard polished thin section. LA-ICP-MS data on base metal sulfides (25 grains analysed), coupled with the whole-rock S concentration (277 +/- 10 ppm) and modal composition of the BMS (90% pentlandite+accessory pyrite and secondary pyrrhotite + 10% chalcopyrite) allowed the contribution of the BMS phase to the PGE budget of FON B 93 to be estimated. Except Pt that exhibits a 95% deficit in the BMS phase, the PGE concentrations measured by ID-ICP-MS can be balanced by BMS while Al-spinel is a negligible contributor, accounting for less than 0.5% of the Ru budget. The occurrence of Pt in trace phases may bias the whole-rock Pt concentrations because 1) mechanical collection of Pt-rich trace phases remains problematic with the Nis button, and 2) Pt-Ir-Os alloys may be prone to digestion problems in conventional Carius tube procedures. Since they could be stable at mantle depth, such refractory alloys that contain Os and Ir may also have enhanced the heavy PGEs/light PGEs fractionation. Our observations likely pertain to orogenic lherzolites as a whole because BMS assemblages in these mantle rocks record evolution at low sulfur fugacity, which prevents Pt-Ir-Os alloy from entering the Mss in the mantle; moreover, at subsolidus temperature, pentlandite, the major BMS, cannot accommodate 0 valence state Pt.
ISSN: 0009-2541

hal-00411486
https://hal.archives-ouvertes.fr/hal-00411486
DOI : 10.1016/j.chemgeo.2007.06.030

Éditeur(s) : Direction Générale des Travaux Publics Direction Générale des Travaux Publics ( Haiti )
Résumé : This collection of over 5,000 black and white photographs held by the National Archives of Haiti dates from 1918 to 1945. It contains images of public buildings before and after restoration, public works, monuments, and the visits of U.S. Presidents and other officials.
Haiti

Droits : All rights reserved by the National Archives of Haiti.
11068

Éditeur(s) : Direction Générale des Travaux Publics Direction Générale des Travaux Publics ( Haiti )
Résumé : This collection of over 5,000 black and white photographs held by the National Archives of Haiti dates from 1918 to 1945. It contains images of public buildings before and after restoration, public works, monuments, and the visits of U.S. Presidents and other officials.
Haiti

Droits : All rights reserved by the National Archives of Haiti.
7728

Éditeur(s) : HAL CCSD Elsevier
Résumé : International audience
Highly siderophile elements (Platinum-group elements, Au and Re) are currently assumed to reside inside base metal sulfides (BMS) in the convecting upper mantle. However, fertile lherzolites sampled by Pyrenean orogenic peridotite massifs are unexpectedly rich in 0.5-3 mu m large micronuggets of platinum-group minerals (PGM). Among those, sulfides from the laurite-erlichmanite series (Ru, Os(Ir)S(As)2), Pt-Ir-Os alloys and Pt-Pd-Te-Bi phases (moncheite-merenskyite) are predominant. Not only the BMS phases but also the PGM micronuggets must be taken into account in calculation of the PGE budget of orogenic fertile lherzolites. Laurite is a good candidate for equilibrating the whole-rock budget of Os, it and Ru while accounting for supra-chondritic Ru/Ir-N. Textural relationships between PGMs and BMS highlight heterogeneous mixing between refractory PGMs (laurite/Pt-Ir-Os alloys) inherited from ancient refractory lithospheric mantle and late-magmatic metasomatic sulfides precipitated from tholeiitic melts. "Low-temperature" PGMs, especially Pt-Pd bismuthotellurides should be added to the list of mineral indicators of lithosphere refertilization process. Now disseminated within fertile lherzolites, "lithospheric" PGMs likely account for local preservation of ancient Os model ages (up to 2 Ga) detected in BMS by in-situ isotopic analyses. These PGMs also question the reliability of orogenic lherzolites for estimating the PGE signature of the Primitive Silicate Earth.
ISSN: 0012-821X

hal-00486109
https://hal.archives-ouvertes.fr/hal-00486109
DOI : 10.1016/j.epsl.2009.11.017

Éditeur(s) : Direction Générale des Travaux Publics Direction Générale des Travaux Publics ( Haiti )
Résumé : This collection of over 5,000 black and white photographs held by the National Archives of Haiti dates from 1918 to 1945. It contains images of public buildings before and after restoration, public works, monuments, and the visits of U.S. Presidents and other officials.
Haiti

Droits : All rights reserved by the National Archives of Haiti.
7727

Éditeur(s) : HAL CCSD Springer Verlag
Résumé : International audience
In this work, we have studied quenching of the fluorescence of two well-known oxygen probes, 1-pyrene butyric acid (PBA) and tris(2,2'-bipyridine)ruthenium ([Ru(bpy)(3)](2+)) by reactive oxygen species (superoxide anion, nitric oxide derivative, hydrogen peroxide) and by the O(2) molecule. Both, time-resolved and steady state fluorescence measurements were performed in solution (ethanol, dimethyl sufoxide, water) and in micelles of Sodium Dodecyl Sulfate that serve as a model for membrane-containing biological structures. We have found that only the free radicals and O(2) can actively quench for the two probes, but not the diamagnetic H(2)O(2). Our data correspond to the classical Stern-Volmer equation. H(2)O(2) has an effect only at high molar concentrations (>0.1 M). In contrast, effective concentrations of free radicals and O(2) that lead to quenching are in millimolar range. In conclusion, our methods allows for detecting global ROS that are small free radicals without interference from the reactive hydroxyl radical. Our data suggest that the method can be used for the quantification of ROS in individual living cells based on the measurement of fluorescence lifetime of those probes
ISSN: 1053-0509

hal-01326234
https://hal.archives-ouvertes.fr/hal-01326234
DOI : 10.1007/s10895-008-0425-z

Éditeur(s) : Université des Antilles Études caribéennes
Résumé : En Haïti, l’accès difficile à des services spécialisés et la rareté des hôpitaux psychiatriques amènent l’aggravation des problèmes d’adaptation (IESM-OMS, 2011 ; Lecomte et Raphaël, 2010a; Nicolas et al.,). Certains services d’intervention tentent de répondre aux besoins complexes des enfants de la rue, comme par exemple le Centre d’accueil de Delmas 3. Au Québec, le modèle psychoéducatif guide les interventions spécialisées auprès de jeunes ayant des troubles de comportements. Le présent projet de recherche vise d’une part à évaluer si une approche collaborative favoriserait la pérennité d’un programme d’intervention en Haïti et d’autre part si le modèle psychoéducatif pourrait répondre aux besoins du milieu d’intervention du Centre d’accueil de Delmas. Pour favoriser la mobilisation des partenaires, le projet met de l’avant une méthode qualitative et collaborative (Hamel, Cousineau et Vézina, 2010). D’abord, une formation adaptée aux besoins du milieu a été présentée aux intervenants. Ensuite, l’équipe de recherche et les intervenants du centre d’accueil ont animé des activités psychoéducatives. Ce projet pilote a montré qu’une approche collaborative favorise la participation et le niveau de satisfaction de tous les acteurs impliqués. Cette expérience a également permis de constater que le modèle psychoéducatif pourrait être utilisé dans les centres d’accueil en Haïti. En effet, ce modèle permet d’adapter la réponse aux besoins des personnes selon les caractéristiques des milieux (Renou, 2005).
In Haiti, accessibility to specialized services and the lack of psychiatric hospitals exacerbates adaptation problems (Lecompte and Raphael 2010a; Nicolas et al, 2012; WHO-AIMS, 2011). The health professionals at the Centre d’accueil de Delmas 3 respond to the complex needs of young street children. In Quebec, several evidence-based intervention models have shaped our clinical practice for young children with behavior disorders. In fact, rehabilitation interventions are based on the psychoeducational model. The current research project had two goals: 1) Examine whether a collaborative approach would facilitate and ensure that the implementation of an intervention program would be ongoing and long-lasting in Haiti; 2) Explore whether the psychoeducational model could respond to the needs of a Haitian youth center. Qualitative methods were used to bring together partners in the research (Hamel, Cousineau and Vézina, 2010). First, educators followed a two days training developed to respond the specific needs. Second, interventions were implemented by researchers in collaboration with the stakeholders. This pilot project has shown that a collaborative approach encourages training and the level of participants' satisfaction. Futher, this experience showed that the psychoeducational model could very well fit the needs of a Haitian youth center. The psychoeducative model can yield responses adapted to the needs of people accounting for the characteristics of the environment (Renou, 2005).
Haïti

Droits : info:eu-repo/semantics/openAccess
urn:doi:10.4000/etudescaribeennes.10295
http://journals.openedition.org/etudescaribeennes/10295

Éditeur(s) : HAL CCSD Springer Verlag
Résumé : International audience
Cobalt-bearing pyrite (0.5-2.0 wt.% Co) is abnormally abundant (up to 35 vol.% of the total volume of the sulfide phase) in some eastern Pyrenean peridotite massifs, compared to pieces of subcontinental mantle studied so far for sulfides. Pyrite occurs as vermicular intergrowths inside pentlandite and/or chalcopyrite or as coarser, blocky grains in the intergranular pores of host peridotites. Those different pyrites are characterized by different platinum-group element systematics (measured by laser ablation microprobe and ICP-MS). Vermicular pyrite intergrown with pentlandite displays Os-, Ir-, Ru- and Rh-enriched chondrite normalized PGE patterns of Monosulfide solid solution (Mss). In contrast, coarse-grained intergranular ("blocky") pyrites, are PGE-poor. Chalcophile trace elements (i.e. Zn, Pb, Ag, Au) that are not usually concentrated in mantle-derived sulfides were commonly detected. By contrast, selenium contents are generally low, yielding thus pyrite with high S/Se ratio (> 10(5)), consistent with a sedimentary sulfur source. Pyrite microtextures and chalcophile trace element contents support a process of assimilation of crustal sulfur from the metamorphosed sedimentary country rocks. These latter generated highly reactive CO2-S fluids, which were injected into structural discontinuities of the lherzolitic bodies. Sulfur has reacted at T = 300-550A degrees C with pre-existing, mantle-derived, metal-rich sulfide assemblages (pentlandite-chalcopyrite). Addition of crustal sulfur did produce Mss which, on cooling, exsolved the Os-rich pyrite in addition to pentlandite. The coarse-grained pyrite types have crystallized directly from S-rich fluids.
ISSN: 0010-7999

hal-00617425
https://hal.archives-ouvertes.fr/hal-00617425
DOI : 10.1007/s00710-010-0138-2

Éditeur(s) : HAL CCSD
Résumé : CorseAlp 2011 was held in April 2011. A link to the website is here: CorseAlp 2011. The CorseAlp field trips were designed to introduce the participants to the general features of the geology of Alpine Corsica and to recent specific discoveries. The three-day post-workshop field trip (Field trip 2) focused on the general architecture of Alpine Corsica in an EW transect between the Balagne region and Bastia. First day: The internal zones of Alpine Corsica: from Bastia to Saint Florent. Intinerary: Saint Florent, Serra di Pigno, Cima Malaspina, Patrimonio, Saint Florent. Second day: The Tenda massif and its eastern margin. Intinerary: Saint Florent, Casta, Fontana Porragghia, Rue de Morello, Fontana a Murello quarry; Fornali. Third day: The external zones of Alpine Corsica in the Balagne region. Intineray: Saint Florent, Colle di U'Vezzu, Ostriconi, Belgodere, San Sebastiano Chapel, San Colombano, Ponte Leccia, Francardo, Bastia.
Journal of the Virtual Explorer

hal-00688971
https://hal.archives-ouvertes.fr/hal-00688971