334 research outputs found

    Unusual Closed Traumatic Avulsion of Both Flexor Tendons in Zones 1 and 3 of the Little Finger.

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    Closed tendon avulsion of both flexor tendons in the same finger is an extremely rare condition. We encountered the case of a patient who presented a rupture of the flexor digitorum profundus in zone 1 and flexor digitorum superficialis in zone 3 in the little finger. This occurrence has not been reported previously. We hereby present our case, make a review of the literature of avulsion of both flexor tendons of the same finger, and propose a treatment according to the site of the ruptures

    Test d’efficacitĂ© d’un herbicide en culture d’ananas, Ă  la station d’expĂ©rimentation et de production d’AnguĂ©dĂ©dou en CĂŽte d’Ivoire

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    Objectif : Un produit Ă  base de glyphosate (Dominator 360) est testĂ© en vue d’évaluer son efficacitĂ© sur les adventices des cultures d’ananas. Ceci pour Ă©largir la gamme des produits dans cette culture et de minimiser les coĂ»ts de traitement en jouant sur les doses tout en veillant Ă  leur efficacitĂ©.MĂ©thodologie et rĂ©sultats : Le Dominator 360 est comparĂ© Ă  des herbicides de rĂ©fĂ©rence en usage sur la culture d’ananas dans la station expĂ©rimentale d’AnguĂ©dĂ©dou. Ces herbicides sont le Kalach, Ă©galement Ă  base de glyphosate et le Special 30 Ă  base de diuron + bromacile. L’essai a Ă©tĂ© conduit suivant un bloc de Fisher randomisĂ©, dont le dispositif est celui des tĂ©moins adjacents. Le Dominator 360 est expĂ©rimentĂ© Ă  trois doses : 2, 3 et 4 l/ha et les deux tĂ©moins Ă  une seule dose : 4 l/ha pour le Kalach et 4 kg/ha pour le Special 30.Les efficacitĂ©s observĂ©es sont diffĂ©rentes selon les doses utilisĂ©es. Le Dominator, les tĂ©moins Kalach et le SpĂ©cial 30 se sont montrĂ©s efficaces pratiquement au mĂȘme titre aux doses maximales utilisĂ©es (4 l/ha et 4 kg/ha). La dose de 3 l/ha du Dominator est apparue la plus faible dose expĂ©rimentĂ©e qui prĂ©sente une bonne efficacitĂ©.Conclusion et application : La dose de 3 l/ha du Dominator 360 constitue la faible dose du produit, comparĂ©e aux deux tĂ©moins utilisĂ©s dans cette Ă©tude, qui prĂ©sente une bonne efficacitĂ© dans la lutte contre les adventices en cultures d’ananas. Ceci en rapport avec la baisse des doses efficaces, recommandĂ©es, pour minimiser les coĂ»ts d’achat des herbicides. Cette dose de 3 l/ha du Dominator 360 est ainsi la dose par excellence Ă  vulgariser.Mots clefs : Herbicide, glyphosate, Dominator, efficacitĂ©, anana

    VariabilitĂ© climatique et son incidence sur les ressources en eaux de surface : cas des stations de Bocanda et de Dimbokro, Centre-Est de la CĂŽte d'Ivoire en Afrique de l’Ouest

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    L’étude du changement climatique et de la variabilitĂ© climatique est d’une trĂšs grande importance pour la gestion et la planification des ressources en eau. Cet article examine l’impact du changement climatique sur l’évolution du N’zi (principal cours d’eau de la zone). Les sĂ©ries chronologiques de pluies et de dĂ©bits ont Ă©tĂ© utilisĂ©es Ă  cet effet. L’application des mĂ©thodes de Nicholson, de Maillet ainsi que des tests statistiques de dĂ©tection de ruptures (test de Buishand, test de Hubert, test de Lee Heghinian et test de Pettitt), et de tendances (test de Mann-Kendall, test de Sen’s) ont permis d’une part de mettre en Ă©vidence une variabilitĂ© climatique caractĂ©risĂ©e par une alternance de pĂ©riodes humides, normales et sĂšches, et d’autre part de dĂ©tecter des ruptures en 1968 pour Dimbokro et en 1975 pour M’bahiakro et Bocanda Ces ruptures s’accompagnent d’une tendance de la baisse de la pluviomĂ©trie (10 Ă  18 %) et des volumes mobilisĂ©s par les aquifĂšres (30 Ă  51 %.). Ce travail constitue une base indispensable pour une meilleure connaissance des ressources en eau des bassins Ă©tudiĂ©s.Mots-clĂ©s: variabilitĂ© climatique, sĂ©ries chronologiques, tendances et ruptures, tests statistiques, CĂŽte d'Ivoire.Climate variability and its impact on water resources of surface: case of stations of Bocanda and Dimbokro (east-central CĂŽte d'Ivoire in West Africa) Climate change and climate variability studies are of great importance for water resources and management and planning in this paper, we put our attention on the impact of these two phenomena on the water resources availability of the N’zi river basin (Main River of the area of study). Rainfall and runoff time series have been used for. Nicholson and Maillet methods and statistical tests for homogeneity (Buishand’s, Hubert’s, Lee and Heghinian’s and Pettitt’s tests) and for trend (Mann Kendall’ test, and Sen’s slope estimator). Nicholson’s and Maillet’s method allow to put in evidence the climate variability with a random succession of periods of excess and deficits. Statistical tests for homogeneity have detected downwards shifts (10% to 51%) in the time series of rainfall beginning in 1968 for Dimbokro and in 1975 for M’bahiakro and Bocanda and in the groundwater (30% to 51%). The work we present in this paper is a preliminary for efficient water management of the N’zi river basin.Keywords: climate variability, times series, statistical tests, homogeneity and trend test, CĂŽte d'Ivoir

    Composition chimique d’un extrait aqueux de bridelia ferruginea benth. (euphorbiaceae) et Ă©tudes de ses effets toxicologique et pharmacologique chez les mammifĂšres.

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    La caractĂ©risation des constituants chimiques de l’extrait aqueux de Bridelia ferruginea (SEA) a rĂ©vĂ©lĂ© la prĂ©sence de quinones, de tanins catĂ©chiques et galliques, d’alcaloĂŻdes, de stĂ©rols, de polyterpĂšnes, de polyphĂ©nols, de composĂ©s rĂ©ducteurs, de flavonoĂŻdes et de saponosides.L’étude de la toxicitĂ© aiguĂ« de SEA, rĂ©alisĂ©e sur des souris, a montrĂ© que l’extrait aqueux de Bridelia ferruginea administrĂ© par voie orale est modĂ©rĂ©ment toxique (DL50 Ă©gale Ă  3568,88 ± 308,45 mg/kg PC). En revanche, la mĂȘme substance est trĂšs toxique (DL50 Ă©gale Ă  111,38 ± 29,3 mg/kg PC) lorsqu’elle est administrĂ©e par voie intrapĂ©ritonĂ©ale. Pour des doses comprises entre 5.10-3 g/kg de PC et 4.10-2 g/kg de PC, SEA provoque une hypotension dose-dĂ©pendante chez le lapin. Cette hypotension Ă©tant inhibĂ©e par l’atropine, l’extrait aqueux de Bridelia ferruginea contiendrait probablement des substances cholinomimĂ©tiques de type muscarinique.Mots-clĂ©s : Bridelia ferruginea, toxicologie, phytochimie, pharmacologie

    Evaluation des propriĂ©tĂ©s hydrauliques des aquifĂšres fracturĂ©s des formations cristalline et mĂ©tamorphique dans la rĂ©gion des Lacs (centre de la CĂŽte d’Ivoire)

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    Groundwater is the main source of water supply for rural populations in the Region des Lacs area in central CĂŽte d’Ivoire (West Africa). The area is underlain by the metamorphic and crystalline fractured hard rock aquifers. This paper focuses on the assessment of their hydraulic properties. To this end, a data base comprising pumping tests data and the technical reports were gathered. 105 values of transmissivity (T ) and specific capacity (Q/s) have been deduced after pumping tests interpretation by the Jacob recovery method. Statistical analyses of all these data have been done. Depth of wells range from 49.50 to 99 m with an average of 69 m. The thickness of the weathered zone has averaged 16.52 m and lies between 1.90 and 63.10 m. Wells average rate is 2.32 m3/s. The depths of open fractures are significantly in the first 60 meters of hard rock drilling and averaged 42.94 m. The transmissivity and specific capacity of each aquifer span over several orders of magnitude revealing the strong heterogeneity of the aquifer. Both variables are lognormal variables A significant empirical relationship between T and Q/s was found T = 0,937(Q/s)^1.118 with a coefficient of determination (R^2 = 0.82). This relationship enabled the transmissivity data to be supplemented with the 95% prediction interval in order to assess the uncertainty associated with the estimates of transmissivity in the area of the study. These results are significant and can be used as an input in forthcoming modeling these aquifers and facilitate groundwater management policy.[fr] Dans la rĂ©gion des Lacs, centre de la CĂŽte d’Ivoire (Afrique de l’Ouest), l’alimentation en eau potable des populations rurales est assurĂ©e en majoritĂ© par les eaux souterraines contenues dans les aquifĂšres discontinus cristallin et cristallophyllien. L’objet de cet article est d’évaluer les propriĂ©tĂ©s hydrauliques de ces aquifĂšres afin d’entreprendre des Ă©tudes pour la gestion optimale de cette ressource. Pour ce faire, une compilation de donnĂ©es regroupant les fiches techniques de forage de mĂȘme que les essais de pompage disponibles dans la rĂ©gion a Ă©tĂ© faite. L’interprĂ©tation des essais de pompage par la mĂ©thode de remontĂ©e de Jacob a permis de dĂ©terminer 105 valeurs de transmissivitĂ© (T ) et de dĂ©bit spĂ©cifique (Q/s). Une analyse statistique des paramĂštres de forages et des paramĂštres hydrauliques dĂ©terminĂ©s a Ă©tĂ© rĂ©alisĂ©e. Les forages ont une profondeur totale qui varie de 49,50 Ă  99 m avec une moyenne de 69 m. L’épaisseur des altĂ©rites est comprise entre 1,90 et 63,10 m pour une moyenne de 16,52 m. Les forages ont un dĂ©bit moyen de 2,32 m3/s. Les profondeurs de venues d’eau sont en moyenne de 42,94 m dans la roche non altĂ©rĂ©e. Les transmissivitĂ©s et les dĂ©bits spĂ©cifiques s’échelonnent sur trois ordres de grandeur avec des coefficients de variation supĂ©rieurs Ă  100% traduisant ainsi l’hĂ©tĂ©rogĂ©nĂ©itĂ© structurale du milieu aquifĂšre. Ces deux paramĂštres sont Ă©galement distribuĂ©s selon la loi log-normale au seuil de 10%. Une relation empirique significative entre la transmissivitĂ© et le dĂ©bit spĂ©cifique a Ă©tĂ© Ă©tablie. Elle permet d’estimer la transmissivitĂ© par l’expressionT = 0,937(Q/s)^1,118 avec R^2 = 0,82 dans un intervalle de confiance de 95% pour les aquifĂšres de la zone d’étude. Ces rĂ©sultats sont importants car, ils seront utiles dans les Ă©tudes de modĂ©lisation de ces aquifĂšres et faciliteront la politique de gestion des eaux souterraines

    Aptitude of Groundwaters for Irrigation in Katiola Area

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    The increasing pressures of agricultural development surfaces on water resources availability of Katiola area obliged farmers to the use groundwater for food crops irrigation. However, groundwater used for irrigation makes an impact on soil quality. The aim of this study is to estimate the capability of Katiola area ground waters to irrigate food crops by using an approach based on Sodium Absorption Ratio (SAR) and Permeability Index (PI). The results show that most of the groundwater samples (67%) in the study area are suitable for irrigation, except few points located in south-east

    Quality protein maize (QPM) seeds grown in Cîte d’Ivoire: A source of high value edible oil

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    The search for new sources of oil with improved properties has focused our attention on the characteristics of oils extracted from white and yellow quality protein maize (QPM) seeds, two hybrids of classic maize (Zea mays L.). Physicochemical parameters of extracted oils were respectively as follow: refractive index (1.47 ± 0.00), free fatty acids (FFA) (1.4 ± 0.00 %), peroxide value (2.00 ± 0.00 and 1.33 ± 0.60 meq O2/kg), iodine value (136.20 ± 1.22 and 137.60 ± 1.22 g I2/100 g), and saponification value (203.83 ± 1.62 and 205.70 ± 1.62 mg KOH/g). Biochemical and nutritive analysis have revealed the following assets: unsaponifiable matter (1.43 ± 0.21 and 1.70 ± 0.10%), phosphorus (0.10 ± 0.02 mg/g), carotenoids (0.86 ± 0.01 and 1.06 ± 0.01 mg/g), vitamin A (0.45 ± 0.01 and 0.63 ± 0.01 mg/g) and vitamin E (0.32 ± 0.01 and 0.39 ± 0.01 mg/g). White and yellow QPM oilseeds showed higher content of linoleic acid (~ 60.2 % of total fatty acids). All these interesting characteristics should arouse attention for the usage of white and yellow QPM oilseeds as alternative to traditional corn oil in food and pharmaceutical industries.Keywords: Zea mays, quality protein maize, seed oils characterization, vitamin E, linoleic acid.African Journal of Biotechnology Vol. 12(23), pp. 3710-371

    Physicochemical and Nutritional Properties of Varieties of Carrot (Daucus carota) grown in Region of Korhogo, North of Cîte d’Ivoire

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    Very popular for its therapeutic and nutritional virtues, culture of carrot (Daucus carota) has developed in temperate zones of Asia and Europe but also in some tropical regions of Africa including CĂŽte d'Ivoire. Agronomic factors, commercial and food requirements require selection of varieties with good nutritional values. In this study, physicochemical properties and nutritional values of four carrot varieties namely Amazonia, Bahia, Madona and Pamela+ were compared after cultivation and harvest in region of Korhogo. Results showed that, Amazonia, the control carrot variety stands out for its acidity and minerals levels. Bahia is the richest variety with high levels of carbohydrate and protein. Madona is the most basic, wettest and fatest carrot. For a long storage, Pamela is most interesting variety. To our knowledge, it is the first time that physicochemical and nutritional parameters of carrot varieties in region of Korhogo have been studied. Future research on these carrot varieties will be studied of their post-harvest conservation, their sensory analysis and their transformation

    Identification of 24 new microsatellite loci in the sweat bee Lasioglossum malachurum (Hymenoptera: Halictidae)

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    OBJECTIVE: The objective here is to identify highly polymorphic microsatellite loci for the Palaearctic sweat bee Lasioglossum malachurum. Sweat bees (Hymenoptera: Halictidae) are widespread pollinators that exhibit an unusually large range of social behaviours from non-social, where each female nests alone, to eusocial, where a single queen reproduces while the other members of the colony help to rear her offspring. They thus represent excellent models for understanding social evolution. RESULTS: 24 new microsatellite loci were successfully optimized. When amplified across 23-40 unrelated females, the number of alleles per locus ranged from 3 to 17 and the observed heterozygosities 0.45 to 0.95. Only one locus showed evidence of significant deviation from Hardy-Weinberg equilibrium. No evidence of linkage disequilibrium was found. These 24 loci will enable researchers to gain greater understanding of colony relationships within this species, an important model for the study of eusociality. Furthermore, 22 of the same loci were also successfully amplified in L. calceatum, suggesting that these loci may be useful for investigating the ecology and evolution of sweat bees in general

    In situ production of shoots derived from plantain strain-suckers by stimulation with cytokinin substances

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    Plantain ( Musa x paradisiaca L., AAB genomic group) is a useful supplement to the nutritional balance of populations in developing countries. The objective of this study was to improve the multiplication rate of in situ plantain (Musa x paradisiaca L.) seeds through the supply of substances with cytokinin activity. Suckers of 10 cm height and related to the parent plant, called strain-suckers, were used to produce shoots. The pseudo-trunk of plantain tree was decorticated, then the apical meristem extracted. Four milliliters of each substance (6-Benzylaminopurine (BAP)\ua0; Kin\ue9tine and Coconut water) were introduced in the cavity left by the extracted meristem. For each substances, the effect of the diameter of first-generation strain-suckers (d < 9; 9 < d < 12 cm and d > 12 cm) was tested. This operation was repeated once so as to have the second and third generations. BAP induced the highest number of buds after three generations. The optimal concentration of BAP was 40 mg L-1. Similarly, all concentrations of coconut water stimulated production of seedlings. Among different diameters of strain-suckers, the largest number of buds was induced with strain-suckers larger than 9 cm in diameter. The production of leafy shoots varied greatly, depending on the solutions tested and the size of strain-suckers used. After 3 to 4 months, seedlings obtained were ready to be transferred in the field.L\u2019objectif principal de la pr\ue9sente \ue9tude est d\u2019am\ue9liorer le taux de multiplication des semences in situ de bananier plantain ( Musa x paradisiaca L.) par apport de substances \ue0 activit\ue9 cytokinine. Les rejets ba\uefonnettes de plus de 10 cm de haut et li\ue9s \ue0 la plante m\ue8re ont \ue9t\ue9 r\ue9pertori\ue9s et appel\ue9s souche-rejets. Le pseudo tronc de ces derniers a \ue9t\ue9 d\ue9cortiqu\ue9 puis le m\ue9rist\ue8me apical extrait. Dans la cavit\ue9 laiss\ue9e par l\u2019extraction du m\ue9rist\ue8me, 4 ml des solutions de Benzylaminopurine (BAP)\ua0; de Kin\ue9tine (Kin) ou de l\u2019eau de coco y ont \ue9t\ue9 introduites. Cette op\ue9ration a \ue9t\ue9 r\ue9p\ue9t\ue9e de sorte \ue0 disposer des rejets de deuxi\ue8me et troisi\ue8me g\ue9n\ue9ration. La substance induisant le plus grand nombre de bourgeons a ensuite \ue9t\ue9 utilis\ue9e pour tester diff\ue9rents diam\ue8tres de rejets (d < 9 cm\ua0; 9 < d < 12 cm et d > 12 cm). La BAP a permis d\u2019induire le plus grand nombre de bourgeons apr\ue8s trois g\ue9n\ue9rations. La concentration optimale de BAP a \ue9t\ue9 de 40 mg L-1. De m\ueame, le lait de coco a permis de stimuler la production de plantules. Parmi les diff\ue9rents diam\ue8tres de rejets, le nombre moyen le plus important de bourgeons a \ue9t\ue9 induit avec les rejets de diam\ue8tre sup\ue9rieur \ue0 9 cm. La production de pousses feuill\ue9es a vari\ue9 fortement selon les solutions test\ue9es et la taille des rejets utilis\ue9s. Au bout de 3 \ue0 4 mois les plantules obtenues sont pr\ueates \ue0 \ueatre transf\ue9r\ue9es au champ
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