220 research outputs found

    Institutions de microfinance et prêteurs informels de l’agriculture familiale en Côte d’ivoire : de la cohabitation à la fusion

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    Full Text / ArticleThe aim of our study was to propose a sustainable financing mechanism. It emerges that food subsistence agriculture is mainly financed by the informal lenders (suppliers of inputs and purchaser of agricultural product) due to their proximity. Anywhere, the results reveal that the collateral, guaranteed and the disbursement periods discourage credit and low down the repayment rate. These results allowed us to propose a new mechanism of financing which amalgamates the informal and formal lenders. This mechanism is based on the MFI by creating a committee of credit made up of all the actors. Thus, the suppliers provide inputs to the farmers. And the repayment is ensured by the purchasers of products after the sale of the harvest. This system increases activities of all actors and legalize those of the informal lenders.Notre étude a eu pour but de proposer un mécanisme de financement durable de l’agriculture familiale ivoirienne. Les résultats révèlent que l’agriculture familiale est cofinancée par les prêteurs informels (fournisseurs d’intrants et acheteurs de produits agricoles) du fait de leur proximité et de la maitrise des informations relatives aux agriculteurs et par les Institutions de Microfinance (IMF). Par ailleurs, les garanties exigées et les moments du décaissement et du remboursement du crédit appliqués par les IMF ne favorisent pas le crédit et entrainent des taux de remboursement faibles. Ces résultats ont permis de concevoir un mécanisme de financement qui fusionne les prêteurs informels et formels. Il se base sur les IMF en créant un comité de crédit composé de tous les acteurs. Ce système prévoit l’octroie des intrants par les fournisseurs aux paysans au compte de l’IMF. Et le remboursement est assuré par les acheteurs de produits après la vente de la récolte. Ce système augmente les activités de tous les acteurs et légalise celles des prêteurs informels

    Construction and Antiapoptosis Activities of Recombinant Adenoviral Expression Vector Carrying EBV Latent Membrane Protein 2A

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    To evaluate the possible effects of LMP2A (EBV latent membrane protein 2A) on human gastric cancer cell line SGC-7901, LMP2A coding gene was subcloned into shuttle plasmid pAdTrackCMV to form transfer plasmid pAdTrackCMV-2A, which was linearized with PmeI and cotransformed into E.coli BJ5183 with adenovirus genomic plasmid of pAdeasy-1. The identified recombinant adenovirus plasmid DNA was digested with PacI and transfected into 293 cells to package recombinant adenovirus particles named vAd-2A. Then the expression and antiapoptosis activities of LMP2A on SGC-7901 infected with vAd-2A were analyzed. The vAd-2A was successfully constructed and identified by PCR, restriction digestion, and sequencing. LMP2A expression in SGC was identified by strong green fluorescence expression with fluorescence microscopic photograph and Southern blotting. The growth of LMP2A expressing SGC cells was apparently improved. Both cyclin E expression and S phase ratio in LMP2A expressing SGC cells were upregulated by cell cycle analysis and confocal microscopic analysis respectively. The replication-deficient recombinant adenovirus vector can express LMP2A antigen in SGC cells and inhibit their apoptosis. The results indicate that LMP2A might play an important role in pathogenesis of EBV-associated gastric cancer (EBVaGC). This study establishes a foundation for further study on EBVaGC and its gene therapy

    L’impact de la durĂ©e des conventions collectives sur les relations de travail locales et la participation Ă  la vie syndicale

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    En 1994, le lĂ©gislateur quĂ©bĂ©cois modifiait l’article 65 du Code du Travail afin de dĂ©plafonner la durĂ©e des conventions collectives dans le secteur privĂ© au QuĂ©bec. Le lĂ©gislateur avait alors pour but de lĂ©galiser les contrats sociaux conclus entre les acteurs patronaux et syndicaux et de s’adapter Ă  l'Accord de libre-Ă©change Nord-AmĂ©ricain. Notre recherche se veut une rĂ©flexion plus de vingt ans plus tard pour comprendre les effets de la durĂ©e de la convention collective sur les relations entre les parties patronales et syndicales au niveau local. Plus spĂ©cifiquement, nous nous intĂ©ressons Ă  l’impact de la durĂ©e de la convention collective sur les relations de travail locales et sur la participation Ă  la vie syndicale Notre recherche vise Ă  vĂ©rifier 2 propositions de recherche soit : 1) que l’augmentation de la durĂ©e des conventions collectives va influencer positivement les relations de travail locales 2) que plus les conventions collectives sont de longue durĂ©e, plus la participation des membres Ă  la vie syndicale sera influencĂ©e nĂ©gativement. Notre recherche est de nature qualitative. Pour vĂ©rifier nos propositions, nous avons effectuĂ© douze entretiens semi-dirigĂ©s auprĂšs de conseillers syndicaux dans le secteur privĂ© d’une grande organisation syndicale au QuĂ©bec. Nos entretiens ont durĂ©e entre 60 et 90 minutes et ont eu lieu entre juin et septembre 2013. Nos entretiens nous ont permis de faire divers constats. Tout d’abord, c’est toujours les reprĂ©sentants des organisations patronales qui font la demande de conventions collectives de longue durĂ©e. Ceci est conforme Ă  nos attentes puisque les organisations patronales (CPQ, AMQ) ont fait des reprĂ©sentations afin de dĂ©plafonner la durĂ©e des conventions collectives (Mayer 1999, Mashimo 2001, Boutet 2004). Une convention collective de longue durĂ©e permettrait de stabiliser les relations de travail Ă  long terme et peut mĂȘme ĂȘtre demandĂ©e par les investisseurs afin de favoriser les investissements dans l’organisation. Au niveau de la participation Ă  la vie syndicale, tous les conseillers syndicaux s’entendent sur le fait qu’une convention collective de longue durĂ©e va diminuer la participation aux assemblĂ©es syndicales. De plus, cela rendrait le recrutement d’officiers syndicaux plus difficile, demanderait d’augmenter la frĂ©quence des communications aux membres et diminuerait la mobilisation des membres. Notre recherche nous fait donc conclure Ă  un impact nĂ©gatif de la durĂ©e de la convention collective sur la participation Ă  la vie syndicale. iii Au niveau des relations de travail locales, une convention collective de plus de trois ans va judiciariser la relation entre les parties. Les conseillers font aussi ressortir le manque de stabilitĂ© des acteurs en relations de travail, ce qui va nuire Ă  l’instauration d’une relation de confiance entre les parties. Ils refusent d’ailleurs de faire des accords informels. Les conflits et les moyens de pression sont aussi plus difficiles lorsque la convention collective est de plus de trois ans puisque les organisations patronales ont tendance Ă  utiliser une stratĂ©gie de laisser aller ce qui va envenimer les conflits existants et faire en sorte que lors de la nĂ©gociation, le syndicat sera plus dur envers l’employeur. Notre recherche nous a donc fait conclure Ă  un lien nĂ©gatif entre la durĂ©e de la convention collective et les relations de travail locales.In 1994, the Quebec legislature amended section 65 of the Labor Code to remove the term of collective agreements in the private sector in Quebec. The aim of the legislator was to legalize the social contracts concluded between the employers' and the trade unions and to adapt to the North American Free Trade Agreement (NAFTA). Our research is a reflection more than twenty years later to understand the effects of the duration of the collective agreement on the relations between the employers' parties and the unions at the local level. More specifically, we are interested in the impact of the duration of the collective agreement on local labor relations and participation in union life. Our research is divided into 5 phases: the synthesis of the literature, our analysis model, the presentation of our results, the analysis of our results and our conclusion. Various observations were made during our census of the literature. In terms of the duration of collective agreements, the trend is clearly to extend the duration since its removal (Mayer 1999, Ministry of Tavail 2000, Boutet 2004). This trend can be seen both in Quebec and since 2005 in the rest of Canada (Workplace Information Division, 2016). In terms of labor relations, there is a decrease in the unionization rate (Statistics Canada 2016), a decrease in conflicts (Labrosse, 2017), a new form of conflict resolution ((Measuring the effects of work stoppages and activities mediation-conciliation on the Quebec economy for the period 20092013) and the emergence of a new negotiation strategy (Fisher Ury 1994, Bourque and Thuderoz 2011). Finally, on the side of participation in union life, Gordon et al., (1980), Fulagar and Barling (1989), and Bamberger (1999) are the authors who have studied the determinants of participation in union life the most in Quebec. Bergeron and Paquet (1995) and Dupuis (2003). ) developed their definition of participation in union life as participating in union activities, including the union's administration (Bergeron and Paquet (1995) or excluding them (Dupuis, 2003). Our research aims at verifying 2 research proposals: 1) that the extension of the duration of the collective agreements will positively influence the local labor relations 2) that the longer the collective agreements are, the more participation of the members to the trade union life will be negatively influenced. Our research is of a qualitative nature. To verify our proposals, we v conducted twelve semi-directed interviews with union consultants in the private sector of a large union organization in Quebec. Our interviews lasted between 60 and 90 minutes and took place between June and September 2013. Our interviews allowed us to make various observations. First of all, it is always the representatives of organizations that apply for long-term collective agreements. This is in line with our expectations since employers' organizations (CPQ, AMQ) have made representations in order to extol the duration of collective agreements (Mayer 1999, Mashimo 2001, Boutet 2004). A long-term collective agreement would stabilize long-term labor relations and may even be required by banks to encourage investment in the organization. In terms of participation in union life, all union advisers agree that a long-term collective agreement will reduce participation in union meetings. In addition, it would make the recruitment of union officers more difficult, increase the frequency of communications to members and reduce the mobilization of members. Our research leads us to conclude that there is a negative link between the duration of the collective agreement and participation in union life. At the level of local labor relations, a collective agreement of more than three years will court the relationship between the parties. The advisers will also highlight the lack of stability of the actors in relation to the work which will hinder the establishment of a relationship of trust between the parties. They refuse to make informal agreements. Conflicts and pressure tactics are also more difficult when the collective agreement is more than three years old, since organizations tend to use a strategy of letting go of what is going to aggravate existing conflicts and to ensure that during negotiations, the union will be harder on the organization. Our research has led us to conclude that there is a negative link between the duration of the collective agreement and local labor relations

    Étude du Profil des Revendeurs de Volailles Vivantes de la ville d’Abidjan en Cîte d’Ivoire

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    L’objectif de cette Ă©tude Ă©tait la dĂ©termination du profil des revendeurs de volailles vivantes de la ville d’Abidjan en CĂŽte d’Ivoire. Pour cela, une enquĂȘte a Ă©tĂ© rĂ©alisĂ©e auprĂšs de 869 revendeurs de volailles vivantes de 79 points de vente de volailles vivantes dans neuf (09) communes de la ville d’Abidjan. Ensuite, les donnĂ©es de l’enquĂȘte ont Ă©tĂ© saisies avant de faire des analyses statistiques. Ainsi, les variables genre (homme ou femme), classe d’ñge (jeunes, adultes ou sĂ©niors) et nationalitĂ© (ivoirien ou autres) des revendeurs de volailles vivantes ont Ă©tĂ© dĂ©terminĂ©es. Ainsi que les indĂ©pendances entre leurs nationalitĂ©s (ivoiriens ou non ivoiriens) avec les classes d’ñges ou avec le genre. Les rĂ©sultats montrent que les hommes revendeurs de volailles vivantes (98,85%) sont nombreux que les femmes (1,15%). Aussi, la majoritĂ© des revendeurs de volailles vivantes sont des adultes (56%) par rapport aux jeunes (36%) ou sĂ©niors (8%). En ce qui concerne la nationalitĂ©, les revendeurs de volailles vivantes burkinabĂ©s (33,37%) ou nigĂ©riens (33,14%) sont les plus nombreux. Ceux-ci sont suivis par les ivoiriens (26,58%) puis les maliens (5,98%), les togolais (0,45%), les bĂ©ninois (0,12%) ou les ghanĂ©ens (0,12%), les guinĂ©ens (0,12%) ou nigĂ©rians (0,12%). En outre, les revendeurs de volailles vivantes non ivoiriens sont plus nombreux que les ivoiriens chez les jeunes, les adultes ou sĂ©niors (p = 0,0008). De mĂȘme, les hommes revendeurs de volailles vivantes non ivoiriens sont plus nombreux que les ivoiriens (p = 0,04). Toutefois, les femmes revendeurs de volailles vivantes ivoiriennes sont plus nombreuses que les non ivoiriennes (p = 0,04). En conclusion, les revendeurs de volailles vivantes de la ville d’Abidjan, majoritairement des hommes, sont de diffĂ©rentes classes d’ñges et de diverses nationalitĂ©s.   The aim of this study was the determination of the profile from living poultries resellers of Abidjan city in Ivory Coast. Then, a survey has been conducted in 869 resellers throught 79 selling points of the living poultries to Abidjan city. Survey data has been registered before statistics analysis. Thus, gender (man or woman), age class (youngs, adults or seniors) and nationality (ivoirian or others) of living poultries ressellers were determinated. Also, the dependances between nationality (ivoirian or no ivoirian) with ages classes or gender were tested. The results show that the men (98.85%) resellers of the living poultries are more than those women (1.15%). In the same way, the adults (56%) reseller of living poultries are more than those youngs (36%) or seniors (8%). For nationality, the living poultries resellers burkinabaes (33.37%) or nigere (33.14%) are more important than ivoirians (26.58%) or malians (5,98%), togolese (0.45%) or beninese (0.12), ghanaians (0.12%), guineans (0.12%) or nigerians (0.12%). Furthermore, the living poultries resellers no ivoirians are more important than those ivoirians in each age class (youngs, adults, or seniors) (p = 0.0008). Also, the men resellers of living poultries no ivorians are more than those ivoirians (p = 0.04). However, the women resellers of living poultries ivorians are more important than those no ivoirians (p = 0,04). In conclusion, the living poultries resellers of the Abidjan city, dominated by men, are from different ages classes and various nationality

    Encapsulation of docetaxel in oily core polyester nanocapsules intended for breast cancer therapy

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    This study is designed to test the hypothesis that docetaxel [Doc] containing oily core nanocapsules [NCs] could be successfully prepared with a high percentage encapsulation efficiency [EE%] and high drug loading. The oily core NCs were generated according to the emulsion solvent diffusion method using neutral Labrafac CC and poly(d, l-lactide) [PLA] as oily core and shell, respectively. The engineered NCs were characterized for particle mean diameter, zeta potential, EE%, drug release kinetics, morphology, crystallinity, and cytotoxicity on the SUM 225 breast cancer cell line by dynamic light scattering, high performance liquid chromatography, electron microscopies, powder X-ray diffraction, and lactate dehydrogenase bioassay. Typically, the formation of Doc-loaded, oily core, polyester-based NCs was evidenced by spherical nanometric particles (115 to 582 nm) with a low polydispersity index (< 0.05), high EE% (65% to 93%), high drug loading (up to 68.3%), and a smooth surface. Powder X-ray diffraction analysis revealed that Doc was not present in a crystalline state because it was dissolved within the NCs' oily core and the PLA shell. The drug/polymer interaction has been indeed thermodynamically explained using the Flory-Huggins interaction parameters. Doc release kinetic data over 144 h fitted very well with the Higuchi model (R2 > 0.93), indicating that drug release occurred mainly by controlled diffusion. At the highest drug concentration (5 ÎŒM), the Doc-loaded oily core NCs (as a reservoir nanosystem) enhanced the native drug cytotoxicity. These data suggest that the oily core NCs are promising templates for controlled delivery of poorly water soluble chemotherapeutic agents, such as Doc

    L’apport de la littĂ©rature au dĂ©veloppement de l’ĂȘtre et la sociĂ©tĂ© : une Ă©tude de Bessie Head et Ngugi wa Thiong’o

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    RĂ©sumé : Le but de cet article est de montrer l’importance de la littĂ©rature africaine le roman dans le changement des mentalitĂ©s des leaders politiques et des peuples. Les deux Ă©crivains mis en Ă©vidence ici, Ngugi wa Thiong’o et Bessie Head qui par le biais des personnages de Makaya, Muthony, Matigari ont pu atteindre leurs objectifs en dĂ©pit des embuches politico-sociales. Ngugi lui fait recours Ă  la rĂ©volution pacifique et violente face Ă  la colonisation et Ă  l’élite noire dans l’Afrique postcoloniale tandis que Bessie appelle Ă  un changement sans recours Ă  la violente. Pour Ngugi, il n’est plus question de dĂ©crire mais plutĂŽt tracer les sillons de la rĂ©volution pour une Afrique digne, prospĂšre dĂ©pourvue des pratiques ancestrales rĂ©trogrades, de l’extrĂ©misme religieux et du nĂ©ocolonialisme entretenus par les leaders politiques et l’élite intellectuelle. Quant Ă  Head, l’émigration et le racisme se sauraient constituer un frein Ă  la rĂ©alisation des rĂȘves d’un individu. Ngugi et Head prĂŽnent le respect du genre, de la race et surtout le sacrifice de soi pour le bien-ĂȘtre de la communautĂ© gagent du dĂ©veloppement durable.   Mots-clĂ©s : bien-ĂȘtre, changement, immigration, littĂ©rature, religion, rĂ©volutio

    Apport De La Télédétection Et De La Géophysique Dans La Cartographie Des Fractures Hydrauliquement Actives En Zone De Socle Au Centre-Ouest Du Benin

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    The hilly region is famous in Benin for its water supply problems because it is located in an area composed only of crystalline rocks. It is experiencing acute difficulties of access to water resources. The present study aims to map fracture networks from satellite images and to use high resolution electrical resistivity tomography for their ground locations. The methodological approach used consists of the use of remote sensing techniques for the structural mapping of lineaments and the application of electrical resistivity tomography for the validation of hydraulically active lineaments. The use of the Selective Principal Component Analysis techniques and Sobel (7x7) directionalspatial filtering techniques made it possible to map the major lineaments. The validation of lineaments was made during several geophysical prospecting surveys of electrical resistivity tomography. The map generated as a result of satellite image processing has 638 linear structures ranging in size from 7 to 34 km and having two preferred directions N0 ° - N10 ° and N80 ° - N90 °. At the end of the geophysics, 13 lineaments were validated in major fractures with widths of the fissured-altered zone ranging from 15 to 40 m and whose depths are beyond 50m. The range of electrical resistivity characterizing these fractures varies from 100 to 800 (Ω.m).La rĂ©gion des collines est cĂ©lĂšbre au BĂ©nin pour ses problĂšmes de ravitaillement en eau car situĂ©e dans une zone constituĂ©e uniquement de roches cristallines. Elle connait des difficultĂ©s aiguĂ«s d’accessibilitĂ© aux ressources en eau. La prĂ©sente Ă©tude a pour objectifs de cartographier les rĂ©seaux de fractures issues des images satellitaires et d’utiliser la tomographie de rĂ©sistivitĂ© Ă©lectrique pour leurs localisations au sol. L’approche mĂ©thodologique utilisĂ©e est basĂ©e sur l’utilisation des techniques de la tĂ©lĂ©dĂ©tection pour la cartographie structurale des linĂ©aments et l’application de la tomographie de rĂ©sistivitĂ© Ă©lectrique pour la validation des linĂ©aments hydrauliquement actives. L’utilisation des techniques de l’Analyse en Composantes Principales SĂ©lectives et des filtrages spatiaux directionnels de Sobel (7x7) ont permis d’établir la carte des linĂ©aments majeurs. La validation des linĂ©aments a Ă©tĂ© faite au cours de plusieurs travaux de prospection gĂ©ophysique de tomographie de rĂ©sistivitĂ© Ă©lectrique. La carte gĂ©nĂ©rĂ©e Ă  la suite du traitement des images satellitaires compte 638 structures linĂ©aires dont la taille varie de 7 Ă  34 km et qui prĂ©sentent deux directions prĂ©fĂ©rentielles N0°- N10° et N80°- N90°. A l’issu destravaux de gĂ©ophysique, 13 linĂ©aments ont Ă©tĂ© validĂ©s en fractures majeures avec des largeurs de la zone fissurĂ©e-altĂ©rĂ©e allant de 15 Ă  40 m et dont leurs profondeurs sont au-delĂ  de 50 m. La gamme de rĂ©sistivitĂ© Ă©lectrique caractĂ©risant ces fractures varie de 100 Ă  800 (Ω.m)
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