检索结果-南通市图书馆

Mapping of Pollution Risk of surface Waters by Runoff from Watershed: Case of Aghien Lagoon (south of Côte d’Ivoire)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Water Resource and Protection 2015年第17期7卷 1457-1466页

作者： konan Jean-Pierre Koffi Yao Alexis N’Go Diakaria Kone kouakou Hervé Kouassi savané Issiaka Laboratory of Geosciences and Environment of University of Nangui Abrogoua Abidjan C&#244 te d’Ivoire Department of Water Resources National Office of Drinking Water (ONEP) Abidjan C&#244 te d'Ivoire

The operating capacity of the Abidjan’s groundwater became insufficient. The deficit in drinking water resources in the District of Abidjan remains the major concern of the decision maker. The Aghien lagoon stands as one of the most interesting alternatives. However, studies show the levels of pollutions of this resource without lighting out on the causes and sources of these pollutions. The present study extends over the entire catchment of the Aghien lagoon which reveals the presence of urban areas and agricultural activity areas. This raises real concerns for the Ivorian authorities. This study suggests making cartography of the risk levels of pollution on the Aghien lagoon by the surface runoff on the watershed to enlighten the decision-makers on the possible measures to be taken for the protection of this resource. It emerges from it that the risk of contamination of the lagoon is very likely. Agricultural and domestic best practices inside the pouring pond are compulsory to fight against the pollutions of this resource.

关键词： Pollution Risk Watershed GIs Aghien Lagoon Abidjan

Production of Yam Tubers Using seed Tubers from Vitroplants Regenerated from Aerial stems in the Yam species Dioscorea alata (L.) and Dioscorea cayenensis-rotundata (L. & P.) in Côte d’Ivoire

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Bioscience and Biotechnology 2024年第3期15卷 184-194页

作者： Koffi Honoré Kouamé kouakou Marius konan Kouadio Ignace Kouassi Kouablan Edmond Koffi Assanvo simon-Pierre N’Guetta Department of des science and Technology University Alassane Ouattara of Bouaké Bouaké C&#244te d’Ivoire Plant Production Research Unit Department of Natural Sciences University Nangui Abrogoua Abidjan C&#244te d’Ivoire Central Biotechnology Laboratory National Center for Agronomic Research (NCAR) Abidjan C&#244te d’Ivoire Genetics Laboratory of Bioscience Research Unit University Félix Houphou&#235t Boigny (UFHB) Abidjan C&#244te d’Ivoire

The aim of this study is to produce large quantities of yam tubers in the field from seed tubers derived from vitroplants regenerated from aerial stem cuttings and farmers’ tuber seeds. seed tubers from ten yam cultivars, including five from Dioscorea alata (cDa083, cDa053, cDa115, cDa150 and cDa266) and five from Dioscorea cayenensis-rotundata (cDr015, cDr027, cDr150, cDr206 and cDr148) with distinct agro-morphological characteristics, were used as material. A completely randomized block design with 3 replications was used. In each block, all cultivars and seed types were represented. When put into cultivation, the tubers produced by the vitroplants all germinated and gave 100% healthy plants, compared with 86% to 100% healthy plants for the seed tubers produced by the farmers. Yields per hectare ranged from 10 to 25 tonnes for seed tubers produced by in vitro plants, and from 4 to 9 tons for seed tubers produced by farmers. seed tubers from vitroplants can therefore be recommended to farmers as a solution to the problem of seed tuber unavailability.

关键词： Yams Vitroplants seed Tubers Yields

Evaluation of the Efficacy of Essential Oil Extracts in the Control of Termites (Isoptera: Termitidae) in Cashew Orchards in Badikaha (Côte d’Ivoire)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Entomology 2024年第2期12卷 93-104页

作者： Adama Coulibaly Magloire Yves Minhibo Charles konan kouakou sylvain Bi Tra Djata sanogo Lassina Fondio Mudde Barnabas National Agricultural Research Center (CNRA) Korhogo Regional Division Lataha Research Station Cashew Mango Papaya Program Abidjan C&#244te d&#8217Ivoire Agricultural Production Improvement Laboratory Jean Lorougnon Gu&#233d&#233 University Daloa C&#244te d&#8217Ivoire Ngetta Zonal Agricultural Research and Development Institute National Agricultural Research Organization (NARO) Lira Uganda

Cashew tree has gradually moved from a purely ecological aspect to a socio-economic one, due to the marketing of its nuts. But production per area, estimated at between 424 and 547 kg/ha, remains low, in contrast to India (2sup>ndsup> largest producer) and Vietnam (3sup>rdsup> largest producer), whose yields range from 1000 to 1500 and 2000 to 2500 kg/ha respectively. This low yield is due to a number of factors, among which insect pests are the most damaging. Among these insects, termites are considered to be one of the main pests of cashew trees. The general objective of this study is to contribute to termite management through the use of bioinsecticides, an alternative to the use of chemicals in cashew orchards. Five (5) biological products were tested: Limocide, Carapa oil, Neem oil, Kitana and Kaskara. Among them, two products proved effective, with a mortality rate of over 50%. These were Limocide, whose LC50 was obtained in 24 h at a dose of 3.6 g/ml and 3.1 g/ml , giving a mortality rate of 57.66% ± 4.04% and 51.33 ± 2.08 respectively , and Carapa, at a dose of 4.5 g/ml, with an estimated mortality rate of 52.33% ± 1.52%. such results have demonstrated the potential application of Limocide and Carapa biopesticides to sustainably control termites in cashew orchards of Côte d’Ivoire.

关键词： Termite Pest Organic Products Cashew Tree Côte d’Ivoire

Optimization of Biofuel Formulation by Mixture Design

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Chemical Engineering and science 2024年第1期14卷 48-56页

作者： konan Edmond Kouassi Abollé Abollé Kouamé Olivier-Marc kouakou David Boa N’guessan Raymond Kré Kouassi Benjamin Yao Laboratory of Thermodynamics and Physical Chemistry of the Environment (LTPCM) UFR-SFA University of Nangui ABROGOUA Abidjan C&#244te d’Ivoire Laboratory of Fundamental and Applied Physics (LPFA) UFR-SFA University of Nangui ABROGOUA Abidjan C&#244te d’Ivoire Laboratory of Industrial Processes for the synthesis of the Environment and New Energies (LAPIsEN) of the Félix Houphouë t Boigny National Polytechnic Institute Yamoussoukro C&#244te d’Ivoire

With the full growth of energy needs in the world, several studies are now focused on finding renewable sources. The aim of this work is to optimise biofuel formulation from a mixture design by studying physical properties, such as specific gravity and kinematic viscosity of various formulated mixtures. Optimization from the mixture plan revealed that in the chosen experimental domain, the optimal conditions are: 40% for used frying oil (UFO), 50% for bioethanol and 10% for diesel. These experimental conditions lead to a biofuel with a density of 0.84 and a kinematic viscosity of 2.97 cst. These parameters are compliant with the diesel quality certificate in tropical areas. These density and viscosity values were determined according to respective desirability values of 0.68 and 0.75.

关键词： Biofuel Optimization Mixture Design

study of the Physico-Chemical Characteristics of Methacompost from a Poultry Company in Ivory Coast: Test for Growing Big sun Chilli

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Agricultural Chemistry and Environment 2023年第4期12卷 335-350页

作者： Ahissan Donatien Ehouman Adjoumani Rodrigue kouakou Gbangbo Remis konan Kadjo Benjamin Abi Ahou Adeline Estelle N’Dri Benjamin Yao Laboratoire de Thermodynamique et Physico-Chimie du Milieu Université Nangui Abrogoua Abidjan C&ocircte d’Ivoire école Doctorale Polytechnique Institut National Polytechnique Félix Houphou&eumlt-Boigny Yamoussoukro C&ocircte d’Ivoire Centre d’Excellence Africain Pour la Valorisation des Déchets en Produits à Haute Valeur Ajoutée (CEA-VALOPRO) Institut National Polytechnique Félix Houphou&eumlt-Boigny (INP-HB) Yamoussoukro C&ocircte d’Ivoire Ecole supérieur saint Chalmel de Yopougon-Abidjan Grande Ecole Privé Abidjan C&ocircte d’Ivoire

The objective of this work was to determine the suitability of poultry methacompost from the 2nd methanizer of the BRIN FOUNDATION in Yaokokoroko (Bondoukou, Côte d’Ivoire), to be used in the improvement of soil fertility. The methacompost studied has a C/N ratio = 17.26, which could characterize a stable methacompost with high amending power. It also contains mineral elements Nitrogen (N) = 0.68% DM;Phosphorus (P) = 0.084% DM;Potassium (K) = 0.67% DM;Calcium (Ca) = 0.65% DM;Magnesium (Mg) = 0.15% DM. red in the standard relating to the organic amendments (NFU 44-051). The methacompost has fertilizing and amending properties and could not present any risk for vegetation and soils.

关键词： Poultry Methacompost Methanization Digestate Trace Metal Elements (TME) Organic Amendment Poultry Farm

Integrated Effects of Phosphate Rock and Chemical Fertilizers on the Dynamics of soil Bacterial in Acidic Rice Paddy soils of Man (Ivory Coast)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Microbiology 2024年第10期14卷 513-531页

作者： Affi Jeanne Bongoua-Devisme sainte Adélaïde Ahya Edith kouakou konan-Kan Hippolyte Kouadio Franck Michaël Lemonou Bahan Department of Pedology and Agricultural Durable FHB University Abidjan Cte dIvoire Center National of Research Agronomic-CNRA Man Cte dIvoire

In agricultural soils, phosphorus is often limited, leading farmers to employ artificial supplementation through both inorganic and organic fertilization methods due to its restricted availability. soil fertilization has the potential to augment both the abundance and diversity of bacterial communities. Our study aimed to assess the effects of phosphate amendments, derived from natural phosphate rock, and chemical fertilizers (TsP, NPK), on the density and diversity of bacterial communities within the study plots. We developed and applied eight phosphate amendments during the initial cultivation cycle. soil samples were collected post 1st and 2nd cultivation cycles, and the quantification of both total and cultivable phosphate-solubilizing bacteria (PsB) was conducted. Additionally, we analyzed bacterial community structure, α-diversity (shannon Diversity Index, Evenness Index, Chao1 Index). The combination of natural phosphate rock (PR) and chemical fertilizers (TsP, NPK) significantly increased (p 7 bacteria/g dry soil) and phosphate-solubilizing bacteria (0.01 to 6.8 × 107 PsB/g dry soil) in comparison to unamended control soils. The diversity of bacterial phyla (Firmicutes, Actinobacteria, Proteobacteria, Halobacterota, Chloroflexia) observed under each treatment remained consistent regardless of the nature of the phosphate amendment applied. However, changes in the abundance of the bacterial phyla populations were observed as a function of the nature of the phosphate amendment or chemical fertilizer. It appears that the addition of excessive natural phosphate rock does not alter the number and the diversity of soil microorganisms population despite successive cultivation cycles. However, the addition of excessive chemical fertilizer reduces soil microorganisms density and structure after the 2nd cultivation cycle.

关键词： Phosphate Amendments Phosphate solubilizing Bacteria P-Cycle Genes Chemical Fertilizer

Post-Traumatic Palatine Odontogenic Abscess: About 2 Cases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of stomatology 2024年第7期14卷 336-340页

作者： Aké Lucien Jonathan Yapo Bakary Ouattara Koffi Laurent Boka konan René kouakou Ahi Morel Mounin Chapo Affoué Linda Marie Pierre Koffi Kahder Morel Diarra Rokiatou Koné-Kamaté konan Marc Koffi Department of stomatology Maxillofacial and Facial Plastic Surgery University Hospital of Cocody Abidjan Republic of Cote dIvoire

Introduction: Palatal abscess or cellulitis of dental origin is a rare clinical form of circumscribed cellulitis that can sometimes pose a diagnostic problem. It is the consequence of poor or non-treatment of dental caries or trauma. The aim of this study is to describe the clinical and therapeutic aspects of these two cases of palatal cellulitis of post-traumatic dental origin. Observation: The patients consulted for painful palatal swelling secondary to untreated dental trauma of the 21s. The diagnosis of palatal cellulitis was based on the inflammatory and fluctuating nature of the swelling. A probabilistic bi-antibiotic treatment and an incision and drainage associated with treatment of the portal of entry were carried out. Progression was favourable in both cases. Conclusion: Palatal cellulitis is a rare condition and can be prevented by systematic stomatological consultation after dental trauma. Diagnosis is clinical. However, CT scans are sometimes useful. The course is generally favorable with appropriate treatment.

关键词： Abscess Palate Dental Trauma

Influence of Different Mango Phenological stages on Fruit Fly Populations in Mango Orchards in Northern Côte d’Ivoire

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural sciences 2024年第11期15卷 1305-1314页

作者： Charles konan kouakou Adama Coulibaly Fougnigue Edwige Yeo Magloire Yves Minhibo Ossey Robert N’Depo N’Klo Hala Mudde Barnabas National Agricultural Research Center Korhogo Regional Division Lataha Research Station Cashew Mango Papaya Program Abidjan Cte dIvoire UFR Ingnierie Agronomie Foresterie et Environnement Universit de Man (UM) Man Cte dIvoire Agricultural Production Improvement Laboratory University Jean Lorougnon Gud Daloa Cte dIvoire Ngetta Zonal Agricultural Research and Development Institute National Agricultural Research Organization (NARO) Lira Uganda

Côte d’Ivoire is the third largest supplier of mangoes to the European market, after Brazil and Peru, and the leading exporter of mangoes to the African market. However, mango production is faced with the problem of fruit flies, which cause yields to fall. In order to combat fruit flies, a study was launched into the early detection of fruit flies at different phenological stages of the mango tree. The overall aim of the study is to help improve mango productivity through early detection of fruit flies at different phenological stages. Accordingly, a trapping system containing sexual attractants and insecticides was set up in the four cardinal directions of the mango orchard. Insects were collected once a week during the vegetative, flowering, mango development and mango ripening stages. Twelve fruit fly species in four genera and seven species were identified, with a high abundance of Bactrocera dorsalis ((265.64 ± 132.82) individuals) and Ceratitis cosyra ((171.87 ± 85.94) individuals). Fruit flies were most abundant at the maturity stage, with a high abundance of Bactrocera dorsalis species ((129.20 ± 46.15) individuals) and at the vegetative stage ((597.80 ± 214.07) individuals), and a high abundance of Ceratitis cosyra species at the flowering (111.26 ± 33.71) and mango development ((187.47 ± 62.64) individuals) stages. In conclusion, the phenological stages of mango influence the population of fruit flies in mango orchards.

关键词： Trapping Device Detection Vegetative Flowering Mango Development Maturity

Primary Malignant Bones Cancers in Cote d’Ivoire: Epidemiological and Histopathological Aspects

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Pathology 2018年第2期8卷 51-59页

作者： Kone samba J. N’dah Kouame R. kouakou konan A. Ngandjeu Nawé Doukoure Brahima Bana Abdoulaye Eti Edmond Agoh serge service de Traumatologie-CHU de Cocody Abidjan Cote d’Ivoire service d’Anatomie et Cytologie Pathologiques-CHU de Cocody Abidjan Cote d’Ivoire service de stomatologie-CHU de Cocody Abidjan Cote d’Ivoire service de Rhumatologie-CHU de Cocody Abidjan Cote d’Ivoire

Primary bones cancers are rare and ubiquitous malignant tumors. Aim: Our study aimed was to describe the epidemiological and histopathological aspects of primary malignant bone cancers in Ivory Coast. Material and method: This is a retrospective and descriptive study of primary malignant bone cancers diagnosed over the period 1990 to 2013 (24 years). The studied parameters were: epidemiological aspects (frequency, age, sex, topography) and histological aspects. Results: Over the study period, primary malignant bone cancers accounted for 1.93% (n = 228) of cancers. The average age was 27.02 years with extremes of 2 and 85 years. The sex ratio was 1.65. They were in the skull and maxilla in 43.9% (n = 105), lower limbs (23.8%), spine and ribs (19.8%), pelvis (5.3%) and upper limbs (2.3%). The clinic was dominated by pain and alteration of general state. Radiology was variable depending on the histological type. In children, primary malignant bone cancers were found in the maxillary (77.9%) and the lower limb (15.8%). Burkitt’s lymphomas represented 36.4% (n = 66) of the histological types followed by 22.4% osteosarcomas (n = 51). In adults at histology, sarcomas were the most common (10%), followed by cancers of the hematopoietic and lymphatic organs (8.09%). Conclusion: Primary malignant bone cancers are rare in Ivory Coast. They most often affect male children with maxillofacial involvement and predominant lower extremity. Burkitt’s lymphoma and osteosarcoma are the often diagnosed histological types.

关键词： Cancers Bones Epidemiology Histopathology Cote d’Ivoire