Fotso Matueno Larissa zita, Clive Neba Akongnwi, Pascal Touna Touna, K. Théophile, A. Bopda, D. Tchuifon, Christopher Suh
La pollution de l’environnement demeure l’un des problèmes majeurs découlant du développement technologique. Le rejet d’eaux usées contenant ce polluant dans l’environnement sans traitement préalable a de graves conséquences pour les êtres vivants. L’objectif de cette étude était d’utiliser des coquilles d’arachides pour éliminer le BPA dans les eaux usées, où, les spectres infrarouges et les diffractogrammes des matériaux ; et autre méthodes ont été spécifiquement étudiées. Dans cette étude, le plan composite central a été utilisé pour optimiser les facteurs qui affectent l’adsorption du BPA de la solution. Ces facteurs comprennent la concentration initiale, la le pH de la solution, le temps de contact, et la masse de carbone sur la réponse qui est l’adsorbé quantité de BPA. Les valeurs respectives de pH et de pHpzc sont de 5,99 et 6,34 pour les PAB; 6.24 et 7.35 pour les PAN et 6,38 et 6,58 pour les PAU. Des études cinétiques ont trouvé l’Elovich et le pseudo-second les modèles cinétiques d’ordre expliquent mieux le mécanisme d’adsorption des PAB, PAN et PAU. Cordialement aux isothermes d’adsorption, les isothermes de Langmuir, Langmuir-Freundlich et Redlich-peterson ont montré une meilleure capacité d’adsorption pour la biosorption du BPA en solution aqueuse par les PAB, PAN et PAU en ce qui concerne les valeurs du coefficient de corrélation et des erreurs. Environmental pollution remains as one of the major problems arising from technological development. The discharge of waste water containing this pollutant into the environment without prior treatment has serious consequences for living beings. The objective of this study was to use peanut shells to eliminate BPA in waste water, where, the infrared spectra and diffractograms of materials; and other methods were specifically studied. In this study, the central composite design was used to optimize the factors that aûect the adsorption of BPA from solution. These factors include initial concentration, the pH of the solution, the contact time, and the mass of carbon on the response which is the adsorbed quantity of BPA. The respective pH and pHpzc values are 5.99 and 6.34 for the PABs; 6.24 and 7.35 for the PANs and 6.38 and 6.58 for the PAUs. Kinetic studies found the Elovich and pseudo-secondorder kinetic models better explain the adsorption mechanism for PABs, PANs, and PAUs. With regards to the adsorption isotherms, the Langmuir, Langmuir-Freundlich and Redlich-peterson isotherms showed a better adsorption capacity for the biosorption of BPA in aqueous solution by PABs, PANs and PAUs with regard to the values of the correlation coefficient and errors.
环境污染仍然是技术发展的主要问题之一。含有这种污染物的废水未经处理就排放到环境中，对生物造成严重后果。本研究的目的是利用花生壳去除废水中的BPA，其中，材料的红外光谱和衍射图;并对其他方法进行了专门研究。在本研究中，中心复合平面被用来优化影响BPA吸附的因素。这些因素包括初始浓度、溶液的pH值、接触时间和响应中碳的质量，即吸附剂BPA的数量。PAB的pH值和pHpzc值分别为5.99和6.34;nap为6.24和7.35,PAU为6.38和6.58。动力学研究发现，elovich和伪二阶动力学模型能更好地解释PAB、PAN和PAU的吸附机理。在吸附等温线上，Langmuir、Langmuir- freundlich和Redlich-peterson等温线表明，PAB、PAN和PAU对BPA在水溶液中的生物吸附的相关系数和误差值具有较好的吸附能力。环境污染仍然是技术发展的主要问题之一。不经处理就将含有这种污染物的废水排放到环境中，对生命造成严重后果。本研究的目的是利用花生壳消除废水中的BPA，即材料的红外光谱和衍射图;= =地理= =根据美国人口普查局的数据，这个县的总面积，其中土地和(1.)水。在本研究中，采用中心复合设计优化了影响BPA从溶液吸附的因素。这些因素包括初始浓度、溶液的pH值、接触时间和反应中碳的质量，这是BPA的吸收量。对于PABs, pH值和pHpzc值分别为5.99和6.34;6.24 and 7.35 for the pan and 6.38 and 6.58 for the PAUs。= =地理= =根据美国人口普查，这个县的面积为，其中土地面积为，其中土地面积为。在吸附等温线方面，Langmuir、Langmuir- freundlich和Redlich-peterson等温线在相关系数和误差值方面显示出PABs、pan和PAUs对BPA在水溶液中的生物吸附能力较好。
{"title":"Optimal removal of bisphenol A by biosorbent based on groundnut (Arachis hypogaea L.) shell: Adsorption mechanism, nonlinear kinetics and isotherm.","authors":"Fotso Matueno Larissa zita, Clive Neba Akongnwi, Pascal Touna Touna, K. Théophile, A. Bopda, D. Tchuifon, Christopher Suh","doi":"10.4314/jcas.v19i2.7","DOIUrl":"https://doi.org/10.4314/jcas.v19i2.7","url":null,"abstract":"La pollution de l’environnement demeure l’un des problèmes majeurs découlant du développement technologique. Le rejet d’eaux usées contenant ce polluant dans l’environnement sans traitement préalable a de graves conséquences pour les êtres vivants. L’objectif de cette étude était d’utiliser des coquilles d’arachides pour éliminer le BPA dans les eaux usées, où, les spectres infrarouges et les diffractogrammes des matériaux ; et autre méthodes ont été spécifiquement étudiées. Dans cette étude, le plan composite central a été utilisé pour optimiser les facteurs qui affectent l’adsorption du BPA de la solution. Ces facteurs comprennent la concentration initiale, la le pH de la solution, le temps de contact, et la masse de carbone sur la réponse qui est l’adsorbé quantité de BPA. Les valeurs respectives de pH et de pHpzc sont de 5,99 et 6,34 pour les PAB; 6.24 et 7.35 pour les PAN et 6,38 et 6,58 pour les PAU. Des études cinétiques ont trouvé l’Elovich et le pseudo-second les modèles cinétiques d’ordre expliquent mieux le mécanisme d’adsorption des PAB, PAN et PAU. Cordialement aux isothermes d’adsorption, les isothermes de Langmuir, Langmuir-Freundlich et Redlich-peterson ont montré une meilleure capacité d’adsorption pour la biosorption du BPA en solution aqueuse par les PAB, PAN et PAU en ce qui concerne les valeurs du coefficient de corrélation et des erreurs. \u0000Environmental pollution remains as one of the major problems arising from technological development. The discharge of waste water containing this pollutant into the environment without prior treatment has serious consequences for living beings. The objective of this study was to use peanut shells to eliminate BPA in waste water, where, the infrared spectra and diffractograms of materials; and other methods were specifically studied. In this study, the central composite design was used to optimize the factors that aûect the adsorption of BPA from solution. These factors include initial concentration, the pH of the solution, the contact time, and the mass of carbon on the response which is the adsorbed quantity of BPA. The respective pH and pHpzc values are 5.99 and 6.34 for the PABs; 6.24 and 7.35 for the PANs and 6.38 and 6.58 for the PAUs. Kinetic studies found the Elovich and pseudo-secondorder kinetic models better explain the adsorption mechanism for PABs, PANs, and PAUs. With regards to the adsorption isotherms, the Langmuir, Langmuir-Freundlich and Redlich-peterson isotherms showed a better adsorption capacity for the biosorption of BPA in aqueous solution by PABs, PANs and PAUs with regard to the values of the correlation coefficient and errors. ","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"282 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131851891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Oyebamiji, O. O. Ojekunle, O.O. Opanike, J. Yisau
The ability of a forest ecosystem to regenerate is crucial for its sustainable exploitation and conservation. Hence, seed is a fundamental material for regeneration. Germination requirements of seeds were investigated at the Forest Nursery Unit of Federal University Dutsin-Ma to assess the effects of presowing techniques on selected seeds of savanna agroforestry tree species. A 5 x 5 factorial in randomized complete block design was used for this experiment in four replicates. The factors were agroforestry tree seeds (AFTS); Acacia nilotica (AN); Parkia biglobosa (PB); Diospyros mespiliformis (DMk); Detarium microcapum (DMt); Adansonia digitata (AD) and pre-sowing treatments; Seeds soaked in 60 % diluted Tetraoxosulphate (VI) acid (H2SO ) (A); mechanical scarification (Ms); hot water at 600 C (HW); seeds soaked in water for 24 hours (W); control (C). AD seeds had significantly higher values (13.84, 4.64, and 10.50) on the wet weight of shoot (WWS), dry weight shoot (DWS), and wet weight of root (WWR) at 10 weeks after sowing (WAS), respectively. A. digitata seeds experienced consistent significantly higher values (13.81. 13.84, 13.89, 13.89 and 13.81, and 4.62, 4.72, 4.60, 4.57 and 4.71) on WWS and DWS at 10 WAS respectively. Mechanically scarified seeds had significantly higher value (2.11) on DWS at 10 WAS. Therefore, mechanical scarification significantly affects the agroforestry tree species of A. digitata among others. Based on this, we recommend mechanical scarification as an effective pre-sowing technique to break seed dormancy and increase seedling biomass. La capacité d’un écosystème forestier à se régénérer est cruciale pour son exploitation et sa conservation durables. Par conséquent, la semence est un matériau fondamental pour la régénération. Les exigences de germination des graines ont été étudiées à l’unité de pépinière forestière de l’Université fédérale Dutsin-Ma pour évaluer les effets des techniques de pré-semis sur des graines sélectionnées d’espèces d’arbres agroforestiers de savane. Un factoriel de 5 x 5 dans une conception en blocs complets randomisés a été utilisé pour cette expérience en quatre répétitions. Les facteurs étaient les semences d’arbres agroforestiers (AFTS); Acacia nilotica (AN); Parkia biglobosa (PB); Diospyros mespiliformis (DMk); Detarium microcapum (DMt); Adansonia digitata (AD) et traitements de pré-semis; Graines trempées dans de l’acide tétraoxosulfate (VI) dilué à 60 % (H2SO4) (A); scarification mécanique (Ms) ; eau chaude à 600 C (EC); graines trempées dans l’eau pendant 24 heures (W); contrôle (C). Les graines AD avaient des valeurs significativement plus élevées (13,84, 4,64 et 10,50) sur le poids humide de la pousse (WWS), le poids sec de la pousse (DWS) et le poids humide de la racine (WWR) à 10 semaines après le semis (WAS), respectivement. Les graines d’A. digitata ont présenté des valeurs significativement plus élevées (13,81, 13,84, 13,89, 13,89 et 13,81, et 4,62, 4,72, 4,60, 4,57 et 4,71)
森林生态系统的再生能力对其可持续开发和保护至关重要。因此，种子是再生的基本材料。为了评估预播技术对热带稀树草原农林业树种种子的影响，在杜钦马联邦大学森林苗圃部对种子萌发需求进行了调查。试验采用5 × 5因子随机完全区组设计，共4个重复。影响因子为农林树木种子(AFTS);相思(AN);大叶蕨(PB);messpiliformis (DMk);微瓶(DMt);adansononia digitata (AD)及其播前处理;用60%稀释的四氧硫酸(VI)酸(H2SO) (A)浸泡种子;机械划伤(Ms);600℃(HW)热水;种子浸泡24小时(W);AD种子在播后10周的地上部湿重(WWS)、地上部干重(DWS)和根部湿重(WWR)分别达到了13.84、4.64和10.50，显著高于对照(C)。A. digitata种子的值持续显著高于(13.81;13.84, 13.89, 13.89和13.81，以及4.62,4.72,4.60,4.57和4.71)，分别为10 WAS的WWS和DWS。10 WAS时，机械固化种子的DWS值显著高于2.11。因此，机械划伤对农用林分树种的影响显著。在此基础上，建议将机械割伤作为打破种子休眠、增加幼苗生物量的有效播前技术。林业组织的能力是开发和保护耐用材料的关键。按照一致的条件，基本的条件是按照相同的条件，基本的条件是按照相同的条件。Les exences de发芽des谷物和农业和农业技术的交换，例如，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换，交换交换。1个5 × 5个单位的因子，一个概念组，完成了随机的和实用的，以及四分之一的随机的和实用的。农业林业组织(AFTS);相思(AN);大叶蕨(PB);messpiliformis (DMk);微瓶(DMt);Adansonia digitata (AD)及其半人格特质;谷物trempsamues dans de l 'acide samuise traoxosulfate (VI) dilu 60% (H2SO4) (A);刀伤型(Ms);eau chaude 600 C(欧共体);谷物trempsames dans l 'eau pendant 24 heres (W);contrôle (C). Les graines AD avaient des valeurs significance plus sameves(13,84, 4,64和10,50)sur le poids humide de la pousse (WWS)， le poids sec de la pousse (DWS)和le poids humide de la racine (WWR)，分别为10 semaines apratisres le semis (WAS)。Les grains d 'A。分别在WWS和DWS 10 WAS上，对不同的交换器(13、81、13、84、13、89、13、89、13、81、4、62、4、72、4、60、4、57、4、71)和交换器的数据进行了分析。在DWS - 10was的基础上，有一种价值显著性(2,11)。与此同时，对农业和林业部门的限制也对农业和林业部门产生了重大影响。数字中心中心。在此基础上，nous建议使用“scarification msamicanique comme technique de pracsimis efficiency”，以提高谷物的性能，并增加“biomasse des semis”。
{"title":"Effects of pre-sowing techniques on selected seeds of savanna agroforestry tree species","authors":"N. Oyebamiji, O. O. Ojekunle, O.O. Opanike, J. Yisau","doi":"10.4314/jcas.v19i1.3","DOIUrl":"https://doi.org/10.4314/jcas.v19i1.3","url":null,"abstract":"The ability of a forest ecosystem to regenerate is crucial for its sustainable exploitation and conservation. Hence, seed is a fundamental material for regeneration. Germination requirements of seeds were investigated at the Forest Nursery Unit of Federal University Dutsin-Ma to assess the effects of presowing techniques on selected seeds of savanna agroforestry tree species. A 5 x 5 factorial in randomized complete block design was used for this experiment in four replicates. The factors were agroforestry tree seeds (AFTS); Acacia nilotica (AN); Parkia biglobosa (PB); Diospyros mespiliformis (DMk); Detarium microcapum (DMt); Adansonia digitata (AD) and pre-sowing treatments; Seeds soaked in 60 % diluted Tetraoxosulphate (VI) acid (H2SO ) (A); mechanical scarification (Ms); hot water at 600 C (HW); seeds soaked in water for 24 hours (W); control (C). AD seeds had significantly higher values (13.84, 4.64, and 10.50) on the wet weight of shoot (WWS), dry weight shoot (DWS), and wet weight of root (WWR) at 10 weeks after sowing (WAS), respectively. A. digitata seeds experienced consistent significantly higher values (13.81. 13.84, 13.89, 13.89 and 13.81, and 4.62, 4.72, 4.60, 4.57 and 4.71) on WWS and DWS at 10 WAS respectively. Mechanically scarified seeds had significantly higher value (2.11) on DWS at 10 WAS. Therefore, mechanical scarification significantly affects the agroforestry tree species of A. digitata among others. Based on this, we recommend mechanical scarification as an effective pre-sowing technique to break seed dormancy and increase seedling biomass. \u0000La capacité d’un écosystème forestier à se régénérer est cruciale pour son exploitation et sa conservation durables. Par conséquent, la semence est un matériau fondamental pour la régénération. Les exigences de germination des graines ont été étudiées à l’unité de pépinière forestière de l’Université fédérale Dutsin-Ma pour évaluer les effets des techniques de pré-semis sur des graines sélectionnées d’espèces d’arbres agroforestiers de savane. Un factoriel de 5 x 5 dans une conception en blocs complets randomisés a été utilisé pour cette expérience en quatre répétitions. Les facteurs étaient les semences d’arbres agroforestiers (AFTS); Acacia nilotica (AN); Parkia biglobosa (PB); Diospyros mespiliformis (DMk); Detarium microcapum (DMt); Adansonia digitata (AD) et traitements de pré-semis; Graines trempées dans de l’acide tétraoxosulfate (VI) dilué à 60 % (H2SO4) (A); scarification mécanique (Ms) ; eau chaude à 600 C (EC); graines trempées dans l’eau pendant 24 heures (W); contrôle (C). Les graines AD avaient des valeurs significativement plus élevées (13,84, 4,64 et 10,50) sur le poids humide de la pousse (WWS), le poids sec de la pousse (DWS) et le poids humide de la racine (WWR) à 10 semaines après le semis (WAS), respectivement. Les graines d’A. digitata ont présenté des valeurs significativement plus élevées (13,81, 13,84, 13,89, 13,89 et 13,81, et 4,62, 4,72, 4,60, 4,57 et 4,71) ","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122465029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The focus of research in Africa has often been limited only to areas where funding exists, accordingly failing to address the all-important issue of Africentrism (Sawyer, 2004). Such research outcomes impacting policy respond to narrowly defined objectives of the funding agencies thus missing out in documenting the held ideals and values of the people and culture. Studies of this nature use research methods built on Eurocentric theories, not well equipped to handle typical contextual issues relevant in understanding African epistemologies as valid frames of reference for addressing African reality. People’s philosophy and psychology depict their mind theory in the way they think, feel, and function, given the relational nature of the culture. This paper, therefore, advocates for more reflections on research methodological approaches in the conduct of research that takes into consideration the relevance of Africentric epistemologies and ontologies. The responsiveness of research is of value to what constitutes a people’s behaviours; how these behaviours patterns are acquired, represented and the purpose these serve in human existence. Africentric epistemological experiences are deeply rooted in the logical processes of induction whereby knowledge is socially constructed from specific observations and interdependent behaviours to broader generalizations and theories. This paper advocates the adoption of an inductive approach to understand the reality of the context before subjection to deductive methodologies for scientific rigour. L’accent de la recherche en Afrique a souvent été limité aux seuls domaines où le financement existe, échouant par conséquent à aborder la question primordiale de l’Africentrisme (Sawyer, 2004). De tels résultats de recherche ayant un impact sur la politique répondent à des objectifs étroitement définis des agences de financement, manquant ainsi de documenter les idéaux et les valeurs du peuple et de la culture. Les études de cette nature utilisent des méthodes de recherche fondées sur des théories eurocentriques, mal équipées pour traiter les problèmes contextuels typiques et pertinents pour comprendre les épistémologies africaines en tant que cadres de référence valables pour aborder la réalité africaine. La philosophie et la psychologie des gens décrivent leur théorie de l’esprit dans la façon dont ils pensent, ressentent et fonctionnent, compte tenu de la nature relationnelle de la culture. Cet article plaide donc pour plus de réflexions sur les approches méthodologiques de recherche qui prennent en considération la pertinence des épistémologies et ontologies africentriques. La réactivité de la recherche est importante pour ce qui constitue les comportements d’un peuple ; comment ces modèles de comportements sont acquis, représentés et le but qu’ils servent dans l’existence humaine. Les expériences épistémologiques africentriques sont profondément enracinées dans les processus logiques d’induction par lesquels la co
非洲研究的重点往往局限于资金存在的地区，因此未能解决非洲中心主义的所有重要问题(Sawyer, 2004)。这些影响政策的研究成果对资助机构狭隘的目标做出了回应，因此错过了记录人民和文化的理想和价值观。这种性质的研究使用的是建立在欧洲中心理论基础上的研究方法，而不是很好地处理典型的背景问题，这些问题与将非洲认识论理解为解决非洲现实的有效参考框架有关。鉴于文化的关系性质，人们的哲学和心理学以他们思考、感觉和功能的方式描绘了他们的心智理论。因此，本文提倡在研究过程中对研究方法进行更多的反思，考虑到以非洲为中心的认识论和本体论的相关性。研究的响应性对构成人们行为的因素很有价值;这些行为模式是如何获得的，表现出来的，以及它们在人类生存中的目的。以非洲为中心的认识论经验深深植根于归纳的逻辑过程，即知识是从具体观察和相互依存的行为到更广泛的概括和理论的社会建构。本文主张采用归纳法来理解上下文的现实，然后再采用演绎方法进行科学严谨。L 'accent de la矫揉造作的en Afrique可是高频抑制辅助而单独的欧勒financement成立,echouant par顺向的各大剧院巡回演出la问题primordiale de L 'Africentrisme(索耶,2004)。在政治上的影响;在目标上的影响;在财务上的影响;在文件上的影响;在人的价值上的影响;在文化上的影响。Les练习曲de这个自然utilisent des方法de矫揉造作的fondees苏尔des理论eurocentriques, mal运动队倒特征问题contextuels把等相关倒理解Les认识论africaines en经常是干部德的参考valables倒的各大剧院巡回演出现实africaine。哲学、心理学、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格、人格。这篇文章阐述了在研究中采用的各种方法，即在考虑与非洲实体有关的、与非洲实体有关的、与非洲实体有关的、与非洲实体有关的、与其他组织有关的、与其他组织有关的、与其他组织有关的、与其他组织有关的方法。La re;评论是mod les de comements sonacquis, reresamentsade等，但它将服务于人类的存在。经验、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金、薪金。在文章prône中，我采用了归纳的方法，并将其归纳为一种简单的方法，将其归纳为一种简单的方法，将其归纳为一种简单的方法，将其归纳为一种简单的方法。
{"title":"Africentric epistemologies and ontologies directing research on African issues for authentic outcomes","authors":"T. Tchombe, Lambert Wirdze","doi":"10.4314/jcas.v19i1.5","DOIUrl":"https://doi.org/10.4314/jcas.v19i1.5","url":null,"abstract":"The focus of research in Africa has often been limited only to areas where funding exists, accordingly failing to address the all-important issue of Africentrism (Sawyer, 2004). Such research outcomes impacting policy respond to narrowly defined objectives of the funding agencies thus missing out in documenting the held ideals and values of the people and culture. Studies of this nature use research methods built on Eurocentric theories, not well equipped to handle typical contextual issues relevant in understanding African epistemologies as valid frames of reference for addressing African reality. People’s philosophy and psychology depict their mind theory in the way they think, feel, and function, given the relational nature of the culture. This paper, therefore, advocates for more reflections on research methodological approaches in the conduct of research that takes into consideration the relevance of Africentric epistemologies and ontologies. The responsiveness of research is of value to what constitutes a people’s behaviours; how these behaviours patterns are acquired, represented and the purpose these serve in human existence. Africentric epistemological experiences are deeply rooted in the logical processes of induction whereby knowledge is socially constructed from specific observations and interdependent behaviours to broader generalizations and theories. This paper advocates the adoption of an inductive approach to understand the reality of the context before subjection to deductive methodologies for scientific rigour. \u0000L’accent de la recherche en Afrique a souvent été limité aux seuls domaines où le financement existe, échouant par conséquent à aborder la question primordiale de l’Africentrisme (Sawyer, 2004). De tels résultats de recherche ayant un impact sur la politique répondent à des objectifs étroitement définis des agences de financement, manquant ainsi de documenter les idéaux et les valeurs du peuple et de la culture. Les études de cette nature utilisent des méthodes de recherche fondées sur des théories eurocentriques, mal équipées pour traiter les problèmes contextuels typiques et pertinents pour comprendre les épistémologies africaines en tant que cadres de référence valables pour aborder la réalité africaine. La philosophie et la psychologie des gens décrivent leur théorie de l’esprit dans la façon dont ils pensent, ressentent et fonctionnent, compte tenu de la nature relationnelle de la culture. Cet article plaide donc pour plus de réflexions sur les approches méthodologiques de recherche qui prennent en considération la pertinence des épistémologies et ontologies africentriques. La réactivité de la recherche est importante pour ce qui constitue les comportements d’un peuple ; comment ces modèles de comportements sont acquis, représentés et le but qu’ils servent dans l’existence humaine. Les expériences épistémologiques africentriques sont profondément enracinées dans les processus logiques d’induction par lesquels la co","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134457252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clive Neba Akongnwi, Chuyong George Bindeh, Neba Godlove Ambe, C. Suh
Soybean (Glycine max (L.) Merr.) is a leguminous crop which is a very important source of dietary protein and oil in animal feed, and a staple for human consumption. It is the fourth most important crop in the world in terms of area harvested and production. The stored products are usually subjected to postharvest losses, most of which begin from the field. These losses can be due to poor field or postharvest practices, which can lead to total grain loss. The objectives of this study were to determine appropriate field practices and postharvest storage practices that minimize the infection and spoilage of soybean grains. The field was laid out in an RCBD with 3 blocks of 6 treatments and the storage experiment was laid in a CRD, based on the 6 field treatments, subjected to two drying methods and stored under 5 storage systems. Results showed that plants that were mulched, produced more nodules and had higher yields compared to non-mulched. Plants that received chemical treatments before harvest showed less disease incidence at storage than the untreated and plants stored in packages with or without botanicals showed less disease incidence at storage than those stored in open air. Le soja (Glycine max (L.) Merr.) est une légumineuse qui est une source très importante de protéines alimentaires et d’huile dans l’alimentation animale, et un aliment de base pour la consommation humaine. C’est la quatrième culture la plus importante au monde en termes de superficie récoltée et de production. Les produits stockés sont généralement soumis à des pertes post-récolte, dont la plupart commencent au champ. Ces pertes peuvent être dues à de mauvaises pratiques sur le terrain ou après la récolte, ce qui peut entraîner une perte totale de grains. Les objectifs de cette étude étaient de déterminer les pratiques de terrain appropriées et les pratiques de stockage post-récolte qui minimisent l’infection et la détérioration des grains de soja. L‘essai a été disposé dans un RCBD avec 3 blocs de 6 traitements et l’essai de stockage a été disposée dans un RCB, basée sur les 6 traitements du champ, soumis à deux méthodes de séchage et stockés sous 5 systèmes de stockage. Les résultats ont montré que les plantes paillées produisaient plus de nodules et avaient des rendements plus élevés que les plantes non paillées. Les plantes qui ont reçu des traitements chimiques avant la récolte ont montré une incidence de maladie moindre au stockage que les plantes non traitées et les plantes stockées dans des emballages avec ou sans plantes ont montré une incidence de maladie moindre au stockage que celles stockées à l’air libre.
大豆(甘氨酸max (l))麦是一种豆科作物，是动物饲料中重要的蛋白质和油脂来源，也是人类的主食。就收获面积和产量而言，它是世界上第四大重要作物。储存的产品通常遭受采后损失，其中大部分是从田间开始的。这些损失可能是由于不良的田间或收获后做法造成的，这可能导致粮食的全部损失。本研究的目的是确定适当的田间操作和采后储存操作，以最大限度地减少大豆籽粒的感染和腐败。田间布置为RCBD，分为3个区块，共6个处理;贮藏试验以6个田间处理为基础，在CRD中布置，采用两种干燥方式，在5种贮藏系统下贮藏。结果表明，与未覆盖植株相比，覆盖植株结瘤数量多，产量高。在收获前接受化学处理的植物在储存时的发病率低于未经处理的植物，在有或没有植物药物的包装中储存的植物在储存时的发病率低于露天储存的植物。大豆(Glycine max (L.))(mr .) est one source tritrante de proproteine alimentaires et d ' hudans l ' alimentaires et d ' hudans l ' alimentaires, et unalimement de base pour la consomation human。这是一种文化，一种外在的文化，一种外在的文化，一种外在的文化，一种外在的文化。所有的产品都储存了已完成的、已完成的、已完成的、已完成的、已完成的、未完成的、未完成的产品。Ces pertes peuvent être des mauvaises pratiques sur le terrain ou aprres la racricolte, ce qui peut entrate, ne ne perte total de grains。将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:将目标设定为:在RCB中，有3个区块的6个特性，存储了3个区块的6个特性，存储了3个区块的6个特性，存储了3个区块的6个特性，存储了5个区块的5个系统。综上所述，所有的变异体都是由变异体组成的，所有的变异体是由变异体组成的，所有的变异体都是由变异体组成的。这些植物不受污染，不受污染，不受污染，不受污染，不受污染，不受污染，不受污染，不受污染，不受污染，不受污染，不受污染，不受污染，不受污染，不受污染。
{"title":"Evaluation of production practices to minimize diseases and postharvest losses of soybean (Glycine max L. (Merr.))","authors":"Clive Neba Akongnwi, Chuyong George Bindeh, Neba Godlove Ambe, C. Suh","doi":"10.4314/jcas.v19i1.4","DOIUrl":"https://doi.org/10.4314/jcas.v19i1.4","url":null,"abstract":"Soybean (Glycine max (L.) Merr.) is a leguminous crop which is a very important source of dietary protein and oil in animal feed, and a staple for human consumption. It is the fourth most important crop in the world in terms of area harvested and production. The stored products are usually subjected to postharvest losses, most of which begin from the field. These losses can be due to poor field or postharvest practices, which can lead to total grain loss. The objectives of this study were to determine appropriate field practices and postharvest storage practices that minimize the infection and spoilage of soybean grains. The field was laid out in an RCBD with 3 blocks of 6 treatments and the storage experiment was laid in a CRD, based on the 6 field treatments, subjected to two drying methods and stored under 5 storage systems. Results showed that plants that were mulched, produced more nodules and had higher yields compared to non-mulched. Plants that received chemical treatments before harvest showed less disease incidence at storage than the untreated and plants stored in packages with or without botanicals showed less disease incidence at storage than those stored in open air. \u0000Le soja (Glycine max (L.) Merr.) est une légumineuse qui est une source très importante de protéines alimentaires et d’huile dans l’alimentation animale, et un aliment de base pour la consommation humaine. C’est la quatrième culture la plus importante au monde en termes de superficie récoltée et de production. Les produits stockés sont généralement soumis à des pertes post-récolte, dont la plupart commencent au champ. Ces pertes peuvent être dues à de mauvaises pratiques sur le terrain ou après la récolte, ce qui peut entraîner une perte totale de grains. Les objectifs de cette étude étaient de déterminer les pratiques de terrain appropriées et les pratiques de stockage post-récolte qui minimisent l’infection et la détérioration des grains de soja. L‘essai a été disposé dans un RCBD avec 3 blocs de 6 traitements et l’essai de stockage a été disposée dans un RCB, basée sur les 6 traitements du champ, soumis à deux méthodes de séchage et stockés sous 5 systèmes de stockage. Les résultats ont montré que les plantes paillées produisaient plus de nodules et avaient des rendements plus élevés que les plantes non paillées. Les plantes qui ont reçu des traitements chimiques avant la récolte ont montré une incidence de maladie moindre au stockage que les plantes non traitées et les plantes stockées dans des emballages avec ou sans plantes ont montré une incidence de maladie moindre au stockage que celles stockées à l’air libre.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114626619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hamidou Hayatou, Fatima Amarir, M. Bouslikhane, A. Rhalem, Julius Awah-Ndukum, F. Meutchieye
Cette étude visait à évaluer le niveau de connaissance des parties prenantes concernant les tiques et les maladies transmises par les tiques dans le secteur de la production de viande bovine en zone tropicale humide. A cet effet, 125 éleveurs ont été identifiés et interrogés dans 3 départements des différentes zones agro-écologiques ainsi que les personnels administratifs du ministère en charge de l’élevage. Les résultats obtenus montrent que les éleveurs de bovins sont majoritairement de sexe masculin (92 %) et ont une meilleure connaissance des tiques (89,6 %). Ces éleveurs sont âgés de plus de 50 ans (42,4%), sans instruction formelle (46,4%) pratiquant un système d’élevage extensif (70,4%). Les animaux sont énéralement abreuvés (87,2%) et suivis au plan vétérinaire de manière régulière (53,6%). La plupart des éleveurs ont une bonne connaissance des tiques (96%), de leur régime alimentaire (92,8%) et de leur localisation ; cependant ils ont une connaissance moyenne du rôle des tiques comme vecteurs de maladies chez les animaux (53,6%) et les humains. Les principales contraintes à la production sont le vol (46,4%), les coûts d’aliments et d’intrants vétérinaires (21,6%). Les traitements classiques sont utilisés ainsi que les pratiques ethnovétérinaires avec une place plus importante pour l’association des deux (67,2%). Il est apparu une dépendance entre la connaissance des tiques, la localité, les méthodes de contrôle et de traitement. L’impact économique était important en termes de perte de poids, de baisse de la production de viande et de lait (95,2%). Les connaissances endogènes rassemblées ouvrent des perspectives relativement au choix des ressources génétiques bovines adaptées aux pressions parasitaires en contexte camerounais. This study aims at assessing the local knowledge of ticks and tick-borne diseases in the beef production sector in the humid tropics. For this purpose, 125 cattle keepers were sampled and interviewed in 3divisions of the different agro ecological regions as well as the administrative staff of the ministry in charge of livestock. The results show that among cattle keepers, men were the majority (92%) and that they had better knowledge of ticks (89.6%). These keepers were over 50 years old (42.4%), without formal education (46.4%) and practicing an extensive husbandry system (70.4%). Animals were usually dipped into anti-tick medicies (87.2%) with fairly regular veterinary monitoring (53.6%). Majority of keepers had a good knowledge of ticks (96%), their feeding habits (92.8%) and their anatomic location preference but had an average knowledge of the role of ticks as diseases’ vectors in animals (53.6%) and humans. The main production constraints faced by respondents were theft (46.4%), feeds’ access and veterinary inputs (21.6%). Classical medicines were used as well as ethnoveterinary approaches with important place for the combination of both (67.2%). There is dependence between the knowledge of ticks, the locali
{"title":"Etat de connaissance des tiques et des maladies transmises dans les systèmes de production de bovins viande au Cameroun, Afrique Centrale","authors":"Hamidou Hayatou, Fatima Amarir, M. Bouslikhane, A. Rhalem, Julius Awah-Ndukum, F. Meutchieye","doi":"10.4314/jcas.v19i1.1","DOIUrl":"https://doi.org/10.4314/jcas.v19i1.1","url":null,"abstract":"Cette étude visait à évaluer le niveau de connaissance des parties prenantes concernant les tiques et les maladies transmises par les tiques dans le secteur de la production de viande bovine en zone tropicale humide. A cet effet, 125 éleveurs ont été identifiés et interrogés dans 3 départements des différentes zones agro-écologiques ainsi que les personnels administratifs du ministère en charge de l’élevage. Les résultats obtenus montrent que les éleveurs de bovins sont majoritairement de sexe masculin (92 %) et ont une meilleure connaissance des tiques (89,6 %). Ces éleveurs sont âgés de plus de 50 ans (42,4%), sans instruction formelle (46,4%) pratiquant un système d’élevage extensif (70,4%). Les animaux sont énéralement abreuvés (87,2%) et suivis au plan vétérinaire de manière régulière (53,6%). La plupart des éleveurs ont une bonne connaissance des tiques (96%), de leur régime alimentaire (92,8%) et de leur localisation ; cependant ils ont une connaissance moyenne du rôle des tiques comme vecteurs de maladies chez les animaux (53,6%) et les humains. Les principales contraintes à la production sont le vol (46,4%), les coûts d’aliments et d’intrants vétérinaires (21,6%). Les traitements classiques sont utilisés ainsi que les pratiques ethnovétérinaires avec une place plus importante pour l’association des deux (67,2%). Il est apparu une dépendance entre la connaissance des tiques, la localité, les méthodes de contrôle et de traitement. L’impact économique était important en termes de perte de poids, de baisse de la production de viande et de lait (95,2%). Les connaissances endogènes rassemblées ouvrent des perspectives relativement au choix des ressources génétiques bovines adaptées aux pressions parasitaires en contexte camerounais. \u0000This study aims at assessing the local knowledge of ticks and tick-borne diseases in the beef production sector in the humid tropics. For this purpose, 125 cattle keepers were sampled and interviewed in 3divisions of the different agro ecological regions as well as the administrative staff of the ministry in charge of livestock. The results show that among cattle keepers, men were the majority (92%) and that they had better knowledge of ticks (89.6%). These keepers were over 50 years old (42.4%), without formal education (46.4%) and practicing an extensive husbandry system (70.4%). Animals were usually dipped into anti-tick medicies (87.2%) with fairly regular veterinary monitoring (53.6%). Majority of keepers had a good knowledge of ticks (96%), their feeding habits (92.8%) and their anatomic location preference but had an average knowledge of the role of ticks as diseases’ vectors in animals (53.6%) and humans. The main production constraints faced by respondents were theft (46.4%), feeds’ access and veterinary inputs (21.6%). Classical medicines were used as well as ethnoveterinary approaches with important place for the combination of both (67.2%). There is dependence between the knowledge of ticks, the locali","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"39 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130259604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This review highlights the social determinants associated with some infectious diseases in Sub-Saharan Africa (SSA) over the past decade. Guided by PRISMA and Population Concept and Context (PCC), database searches in PubMed, Science Direct Elsevier, Springer Link, Plos One, and Google search were employed to identify relevant studies. For extraction of relevant data from the scripts, Metaanalysis and thematic analysis was used. The results show that few countries in SSA are engaged in the fight against these diseases. More so, Malaria had the greatest social determinants discussed (35%) followed by Cholera and TB (30% and 20% respectively). >80% of the population in the studies were pregnant women, women with children below 5, and children below 5 in rural areas. The social determinants highlighted in the study include amongst others in descending order: social capital, community engagements, health care services, health behaviours/habits, safe drinking water, housing and toilet facilities, personal hygiene, and social groupings. Without underestimating the impact of any of these determinants in the contribution to infectious diseases, this review suggests further and deliberate studies on the effects of each of them on population health. It also recommends a need for policy development in this regard by considering social and biological/medical determinants as a twin tool for the elimination of infectious diseases. Cette revue met en lumière les déterminants sociaux associés à certaines maladies infectieuses en Afrique subsaharienne (ASS) au cours de la dernière décennie. Guidées par PRISMA et Population Concept and Context (PCC), des recherches dans les bases de données PubMed, Science Direct Elsevier, Springer Link, PloS One et Google ont été utilisées pour identifier les études pertinentes. Pour extraire les données pertinentes , une méta-analyse et une analyse thématique ont été utilisées. Les résultats montrent que peu de pays d’ASS sont engagés dans la lutte contre ces maladies. Plus, encore, le paludisme avait les plus grands determinants sociaux discutés (35 %), suivi du choléra et de la tuberculose (30 % et 20 % respectivement). >80% de la population dans les études étaient des femmes enceintes, des femmes avec des enfants de moins de 5 ans et des enfants de moins de 5 ans dans les zones rurales. Les déterminants sociaux mis en évidence dans l’étude comprennent entre autres par ordre décroissant : le capital social, les engagements communautaires, les services de soins de santé, les comportements/habitudes de santé, l’eau potable, le logement et les toilettes, l’hygiène personnelle et les groupements sociaux. Sans sous-estimer l’impact de l’un ou l’autre de ces déterminants dans la contribution aux maladies infectieuses, cette revue propose des études plus approfondies et délibérées sur les effets de chacun d’eux sur la santé de la population. Il recommande également la nécessité d’élaborer des politiques à cet égard en considérant l
这篇综述强调了过去十年来与撒哈拉以南非洲(SSA)一些传染病相关的社会决定因素。在PRISMA和Population Concept and Context (PCC)的指导下，使用PubMed、Science Direct Elsevier、Springer Link、Plos One和Google搜索等数据库检索相关研究。从脚本中提取相关数据，采用元分析和主题分析。结果表明，撒哈拉以南非洲很少有国家参与防治这些疾病的工作。此外，疟疾被讨论的社会决定因素最多(35%)，其次是霍乱和结核病(分别为30%和20%)。>80%的研究人群为孕妇、5岁以下儿童的妇女和农村地区5岁以下儿童。研究中强调的社会决定因素按降序排列包括:社会资本、社区参与、保健服务、卫生行为/习惯、安全饮用水、住房和厕所设施、个人卫生和社会群体。在不低估任何这些决定因素对传染病的影响的情况下，本审查建议进一步仔细研究每一个决定因素对人口健康的影响。委员会还建议有必要制定这方面的政策，将社会决定因素和生物/医学决定因素视为消除传染病的双重工具。在撒哈拉以南非洲(非洲)的某些疾病感染的情况下，与社会相关的)和与之有关的其他疾病感染的情况。《guides par PRISMA and Population Concept and Context (PCC)》，《研究和分析》，《公共医学》，《Science Direct爱思唯尔》，《Springer Link》，《公共科学图书馆》和《Google》，《使用和分析》，《使用和分析》，以及《识别和分析》。将extraire les donnsames pertinentes，一个samdama -analyse，一个samdama -analyse，一个samdama -analyse，一个samdama -analyse，一个samdama -analyse，一个samdama -analyse。这是一项非常重要的研究，它可以帮助研究人员更好地了解其他疾病。另外，encore, le paludisme avait +重大决定因素sociaux discutsamas (35%)， suvii du cholsamra和de la结核菌(分别为30%和20%)。超过80%的人口为成年女性，成年女性为成年女性，成年女性为成年女性，成年女性为成年女性，成年女性为成年女性，成年女性为成年女性，成年女性为成年女性，成年女性为成年女性，成年女性为成年女性。社会组织的成员是社会组织的成员;社会组织的成员是社会组织的成员;社会组织的成员是社会组织的成员;社会组织的成员是社会组织的成员;社会组织的成员是社会组织的成员;社会组织的成员是社会组织的成员;社会组织的成员是社会组织的成员。如果我们不估计“对人的影响”、“对人的影响”、“对人的影响”和“对疾病和传染病的影响”，我们建议将“对人的影响”和“对人的影响”加“对人的影响”。我建议使用以下两种方法:1 .扫除疾病传染;2 .扫除疾病传染;3 .扫除疾病传染;3 .扫除疾病传染;3 .扫除疾病传染;3 .扫除疾病传染。
{"title":"Why infectious diseases persist: A Rapid review of the social determinants of Malaria, Cholera, Tuberculosis and Yellow Fever in Sub-Saharan Africa","authors":"Florence Agweibab","doi":"10.4314/jcas.v19i1.2","DOIUrl":"https://doi.org/10.4314/jcas.v19i1.2","url":null,"abstract":"This review highlights the social determinants associated with some infectious diseases in Sub-Saharan Africa (SSA) over the past decade. Guided by PRISMA and Population Concept and Context (PCC), database searches in PubMed, Science Direct Elsevier, Springer Link, Plos One, and Google search were employed to identify relevant studies. For extraction of relevant data from the scripts, Metaanalysis and thematic analysis was used. The results show that few countries in SSA are engaged in the fight against these diseases. More so, Malaria had the greatest social determinants discussed (35%) followed by Cholera and TB (30% and 20% respectively). >80% of the population in the studies were pregnant women, women with children below 5, and children below 5 in rural areas. The social determinants highlighted in the study include amongst others in descending order: social capital, community engagements, health care services, health behaviours/habits, safe drinking water, housing and toilet facilities, personal hygiene, and social groupings. Without underestimating the impact of any of these determinants in the contribution to infectious diseases, this review suggests further and deliberate studies on the effects of each of them on population health. It also recommends a need for policy development in this regard by considering social and biological/medical determinants as a twin tool for the elimination of infectious diseases. \u0000Cette revue met en lumière les déterminants sociaux associés à certaines maladies infectieuses en Afrique subsaharienne (ASS) au cours de la dernière décennie. Guidées par PRISMA et Population Concept and Context (PCC), des recherches dans les bases de données PubMed, Science Direct Elsevier, Springer Link, PloS One et Google ont été utilisées pour identifier les études pertinentes. Pour extraire les données pertinentes , une méta-analyse et une analyse thématique ont été utilisées. Les résultats montrent que peu de pays d’ASS sont engagés dans la lutte contre ces maladies. Plus, encore, le paludisme avait les plus grands determinants sociaux discutés (35 %), suivi du choléra et de la tuberculose (30 % et 20 % respectivement). >80% de la population dans les études étaient des femmes enceintes, des femmes avec des enfants de moins de 5 ans et des enfants de moins de 5 ans dans les zones rurales. Les déterminants sociaux mis en évidence dans l’étude comprennent entre autres par ordre décroissant : le capital social, les engagements communautaires, les services de soins de santé, les comportements/habitudes de santé, l’eau potable, le logement et les toilettes, l’hygiène personnelle et les groupements sociaux. Sans sous-estimer l’impact de l’un ou l’autre de ces déterminants dans la contribution aux maladies infectieuses, cette revue propose des études plus approfondies et délibérées sur les effets de chacun d’eux sur la santé de la population. Il recommande également la nécessité d’élaborer des politiques à cet égard en considérant l","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124703211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Ampitan, Oluwadamilola Aduragbemi Ayanniyi, Folajinmi Olaoluwa Omolabi, K. Adelakun
Ethnobotanical study of Professor Afolayan Wildlife Park was carried out to identify and document medicinal plants and their uses. Medicinal plants have been observed to be very effective in the treatment of ailments that defy orthodox medicine. In this study, common plants used were classified based on their families, parts used and the medicinal uses. Some of the plant families were briefly discussed and the plants local names provided. According to field survey, 40 plants were identified consisting of 20 families in the Park. The dominant families were Leguminosae (15.0%) and Sterculiaceae (12.5%) while the least dominant families include Caricaceae, Meliaceae, Loganiaceae, Poaceae and Verbenaceae. The medicinal uses of the plants varied, and the commonly used plant parts are leaves, bark, seeds, fruits and the whole plant which are used to treat ailments like malaria, stomach aches and diarrhoea. This study shows the high medicinal potentials of Professor Afolayan Wildlife Park, therefore the need for sustainable use and conservation of the Park.
{"title":"Ethnobotanical Studies of Professor Afolayan Wildlife Park, Ondo State, Nigeria: A Rich Resource for medicinal plants against common ailments Ondo State, Nigeria","authors":"T. Ampitan, Oluwadamilola Aduragbemi Ayanniyi, Folajinmi Olaoluwa Omolabi, K. Adelakun","doi":"10.4314/jcas.v18i3.2","DOIUrl":"https://doi.org/10.4314/jcas.v18i3.2","url":null,"abstract":"Ethnobotanical study of Professor Afolayan Wildlife Park was carried out to identify and document medicinal plants and their uses. Medicinal plants have been observed to be very effective in the treatment of ailments that defy orthodox medicine. In this study, common plants used were classified based on their families, parts used and the medicinal uses. Some of the plant families were briefly discussed and the plants local names provided. According to field survey, 40 plants were identified consisting of 20 families in the Park. The dominant families were Leguminosae (15.0%) and Sterculiaceae (12.5%) while the least dominant families include Caricaceae, Meliaceae, Loganiaceae, Poaceae and Verbenaceae. The medicinal uses of the plants varied, and the commonly used plant parts are leaves, bark, seeds, fruits and the whole plant which are used to treat ailments like malaria, stomach aches and diarrhoea. This study shows the high medicinal potentials of Professor Afolayan Wildlife Park, therefore the need for sustainable use and conservation of the Park.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133974583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juvenal Tonfack Djouatsa, Algrient Nana Towa, P. Zango, Jeanne Wikondi, T. Ewoukem, F. Meutchieye
The study on the phenotypic polymorphism of Heterotis niloticus was undertaken from February to May 2020 in the rain forest region of Cameroon. The main objective was to contribute to a better understanding of the genetic diversity of this adapted species for adequate breeding and preservation strategies. More specifically, the investigation aimed at evaluating the variability of phenotypic, morphometric and meristic features according to the study sites. Further, it was also in order to analyse the phenotypic variability, the structure, as well as the phylogenetic relationships among the Heterotis niloticus subpopulations. A total of 125 adult individuals were collected in three localities and characterized. Two (2) phaneroptic traits were observed, while 16 morphometric traits were measured and 5 meristic characters were counted. The results showed that there is a colour variability of eyes and body in Heterotis niloticus from the study area with a predominance of golden eyes (97.60%) and grey body (96.80%). The number of scales on the lateral line was higher in the individuals collected in Mbalmayo (38.67±1.46) than those in Ayos (37.70±0.95). Discriminant factor analyses and phylogenetic analyses revealed that the overall population studied is made up of 3 morphotypes cohabiting in the three localities; thus it was possible to establish the phylogenetic relationships that exist between them. Morphotypes 1 and 2 are closer while morphotypes 2 and 3 are far apart, showing a tendency of splitting genetic make up. The recorded diversity suggests that Heterotis niloticus from the study area constitutes a natural genetic resource having the interesting variability for further improvement and sustainable management.
{"title":"Phenotypic polymorphism of African bony tongue fish Heterotis niloticus (Cuvier, 1829) in Cameroon rainforest region","authors":"Juvenal Tonfack Djouatsa, Algrient Nana Towa, P. Zango, Jeanne Wikondi, T. Ewoukem, F. Meutchieye","doi":"10.4314/jcas.v18i3.3","DOIUrl":"https://doi.org/10.4314/jcas.v18i3.3","url":null,"abstract":"The study on the phenotypic polymorphism of Heterotis niloticus was undertaken from February to May 2020 in the rain forest region of Cameroon. The main objective was to contribute to a better understanding of the genetic diversity of this adapted species for adequate breeding and preservation strategies. More specifically, the investigation aimed at evaluating the variability of phenotypic, morphometric and meristic features according to the study sites. Further, it was also in order to analyse the phenotypic variability, the structure, as well as the phylogenetic relationships among the Heterotis niloticus subpopulations. A total of 125 adult individuals were collected in three localities and characterized. Two (2) phaneroptic traits were observed, while 16 morphometric traits were measured and 5 meristic characters were counted. The results showed that there is a colour variability of eyes and body in Heterotis niloticus from the study area with a predominance of golden eyes (97.60%) and grey body (96.80%). The number of scales on the lateral line was higher in the individuals collected in Mbalmayo (38.67±1.46) than those in Ayos (37.70±0.95). Discriminant factor analyses and phylogenetic analyses revealed that the overall population studied is made up of 3 morphotypes cohabiting in the three localities; thus it was possible to establish the phylogenetic relationships that exist between them. Morphotypes 1 and 2 are closer while morphotypes 2 and 3 are far apart, showing a tendency of splitting genetic make up. The recorded diversity suggests that Heterotis niloticus from the study area constitutes a natural genetic resource having the interesting variability for further improvement and sustainable management. ","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133717764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Z. Ndiang, Patrice Brice Mvogo Ottou, B. Likeng-Li-Ngue, H. B. Ngalle, Pascal Eric Billong Fils, Gaëtan Romaric Ngapmeu Tchabong, C. Dabandata, J. Bell
The main goal of this study is to assess the endogenous knowledge on the diversity of V. subterranea (L.) and its different habits using an ethnobotanical survey in five (05) districts of Douala in the Littoral region of Cameroon. To achieve this objective, the survey was realised on among 170 households from 18 neighbourhoods and 118 traders working in 12 markets from Douala I, II, III, IV and V. Subsequently, the survey revealed that surveyed originated from nine (09) ethnic groups belonging to the Littoral, West, Centre and North Cameroon Regions, forming a representative sample for the country. The study reveals a variety of local nomenclature from one ethnic group to another, such as “Matobo”, “Matobi” and “Matopi” having dominantly the same radical “Matob” in the coastal area and suggesting the same source of languages. The seed colour (77.08%) appear as the main popular criterion for the recognition of morphotypes (multicolored ~77.66%, white ~14.77%, red ~3.38%, brown ~3.38% and black ~1.27%). The consumption of seeds (fresh or cooked) is ubiquitous but can induce few undesirable effects such as diarrhoea, constipation and allergies. The survey equally reveals therapeutic effects (29.6%) of organs on digestive disorders, cataracts, and infected wounds. These results permit to identify the rich secular knowledge, culinary habits and medicinal virtues linked to morphotypes usable for prebreeding programs of V. subterranea.
{"title":"Assessment of popular knowledge and uses of Vigna subterranea (L.) for prebreeding programs in Douala (Cameroon)","authors":"Z. Ndiang, Patrice Brice Mvogo Ottou, B. Likeng-Li-Ngue, H. B. Ngalle, Pascal Eric Billong Fils, Gaëtan Romaric Ngapmeu Tchabong, C. Dabandata, J. Bell","doi":"10.4314/jcas.v18i3.1","DOIUrl":"https://doi.org/10.4314/jcas.v18i3.1","url":null,"abstract":"The main goal of this study is to assess the endogenous knowledge on the diversity of V. subterranea (L.) and its different habits using an ethnobotanical survey in five (05) districts of Douala in the Littoral region of Cameroon. To achieve this objective, the survey was realised on among 170 households from 18 neighbourhoods and 118 traders working in 12 markets from Douala I, II, III, IV and V. Subsequently, the survey revealed that surveyed originated from nine (09) ethnic groups belonging to the Littoral, West, Centre and North Cameroon Regions, forming a representative sample for the country. The study reveals a variety of local nomenclature from one ethnic group to another, such as “Matobo”, “Matobi” and “Matopi” having dominantly the same radical “Matob” in the coastal area and suggesting the same source of languages. The seed colour (77.08%) appear as the main popular criterion for the recognition of morphotypes (multicolored ~77.66%, white ~14.77%, red ~3.38%, brown ~3.38% and black ~1.27%). The consumption of seeds (fresh or cooked) is ubiquitous but can induce few undesirable effects such as diarrhoea, constipation and allergies. The survey equally reveals therapeutic effects (29.6%) of organs on digestive disorders, cataracts, and infected wounds. These results permit to identify the rich secular knowledge, culinary habits and medicinal virtues linked to morphotypes usable for prebreeding programs of V. subterranea. ","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127082363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the context of a developing country like Cameroon characterized by the scarcity of financial resources and the appearance of Covid-19, this article shows that this pandemic was not more important than the pre-existing health problems to the point of giving it more importance in funding compared to strengthening the health system. The theoretical elasticity model of the poverty rate to growth is used to estimate the impact of Covid-19 and the incidence of impoverishing health expenditure is used for the impact of common diseases. It is estimated through direct health payments that common diseases push about 340,865 people into extreme poverty annually. The Covid-19, through the loss of growth generated between 4.8 and 6.6 points according to the optimistic or pessimistic scenarios, would impoverish between 224,193 and 398,565 people: impact on the number of poor ranging from 0.7 to 1.2 times that of all common diseases, i.e., equivalent on average, but sensitive to the speed of spread of the virus and the duration of the crisis while the impact of common diseases is structural and linked to the poorly performing health system. The solutions proposed are endogenous and linked to the impact mechanisms.
{"title":"Comparative impact of Covid-19 and common diseases on poverty in Cameroon and sustainable response strategies","authors":"Charles Michel Chomssem Defo","doi":"10.4314/jcas.v18i3.5","DOIUrl":"https://doi.org/10.4314/jcas.v18i3.5","url":null,"abstract":"In the context of a developing country like Cameroon characterized by the scarcity of financial resources and the appearance of Covid-19, this article shows that this pandemic was not more important than the pre-existing health problems to the point of giving it more importance in funding compared to strengthening the health system. The theoretical elasticity model of the poverty rate to growth is used to estimate the impact of Covid-19 and the incidence of impoverishing health expenditure is used for the impact of common diseases. It is estimated through direct health payments that common diseases push about 340,865 people into extreme poverty annually. The Covid-19, through the loss of growth generated between 4.8 and 6.6 points according to the optimistic or pessimistic scenarios, would impoverish between 224,193 and 398,565 people: impact on the number of poor ranging from 0.7 to 1.2 times that of all common diseases, i.e., equivalent on average, but sensitive to the speed of spread of the virus and the duration of the crisis while the impact of common diseases is structural and linked to the poorly performing health system. The solutions proposed are endogenous and linked to the impact mechanisms. ","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126255655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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