Didier Jean B. Haman, Fyetoh W. Fantong, G. O. A. Ewodo Mboudou, Gabriel Messi
La présente étude a été effectuée pour déterminer les zones potentielles de recharge des eaux souterraines. Pour ce faire, la démarche méthodologique était basée sur l’analyse multicritère associée aux techniques géospatiales. Les données utilisées étaient entre autres les images satellitaires, les fonds cartographiques, les données pluviométriques et les niveaux statiques. Ces données ont permis d’exprimer sous forme de carte thématique les facteurs régissant la recharge (pente, drainage, lithologie, fracturation, sol, pluviométrie et occupation du sol). L’analyse de sensibilité par suppression d’un paramètre a permis d’établir l’ordre d’influence suivant : Lit > Sol > AACH > Df > Pl > Pe > Dd > OS. Le croisement de tous ces paramètres après pondération a conduit à l’élaboration de la carte qui montre que les zones à ort potentiel occupent 3 % de la zone d’étude pendant que les zones de faible à faible potentialité sont de l’ordre de 58 % dans le bassin. Les zones à potentialité moyenne quant à elles représentent 39%. Ce support cartographique constitue indéniablement un outil d’aide à la décision pour les gestionnaires de l’eau. This study was carried out to determine potential groundwater recharge areas. To do this, the methodological approach was based on multi-criteria analysis associated with geospatial techniques. The data used were, among others, satellite images, base maps, rainfall data and static levels. These data made it possible to express in the form of a thematic map the factors governing the recharge (slope, drainage, lithology, fracturing, soil, rainfall and land use). The sensitivity analysis by deletion of a parameter made it possible to establish the following order of influence: Lit > Sol > AACH > Df > Pl > Pe > Dd > OS. The crossing of all these parameters after weighting led to the development of the map of potential recharge zones which revealed that the zones with high potential occupy 3% of the study zone while the zones with low to low potentiality are around 58% in the basin. Areas with average potential represent 39%. This cartographic support is undeniably a decision-making tool for water managers.
进行这项研究是为了确定地下水补给的潜在区域。为此目的，方法方法是基于与地理空间技术相结合的多标准分析。使用的数据包括卫星图像、地图背景、降雨数据和静态水平。这些数据使控制补给的因素(坡度、排水、岩性、压裂、土壤、降雨和土地覆盖)能够以专题地图的形式表示。通过去除一个参数进行敏感性分析，可以确定以下影响顺序:Lit > Sol > AACH > Df > Pl > Pe > Dd > OS。对所有这些参数进行加权后，绘制出地图，显示具有ort潜力的区域占研究区域的3%，而低至低潜力的区域约占盆地的58%。中等潜力地区占39%。这种地图支持无疑是水资源管理人员的决策支持工具。= =地理= =根据美国人口普查，这个县的总面积为，其中土地和(0.964平方公里)水。为此，该方法基于与地理空间技术相关的多标准分析。所使用的数据包括卫星图像、基图、降雨数据和静态水平。这些数据使我们能够以专题地图的形式说明影响补给的因素(坡度、排水、岩性、裂缝、土壤、降雨和土地利用)。通过删除一个参数进行敏感性分析，可以建立以下影响顺序:Lit > Sol > AACH > Df > Pl > Pe > Dd > OS。所有这些参数的交叉参照导致了潜在充电站区域地图的发展，表明高潜力区域占研究区域的3%，而低至低潜力区域在盆地中约占58%。= =地理= =根据美国人口普查局的数据，该县总面积为，其中土地和(1.0%)水。这种地图支持无疑是水资源管理人员的决策工具。
{"title":"Approche décisionnelle géospatiale et multicritère dans l’identification des zones potentielles de recharge des eaux souterraines : cas du bassin versant du Mayo Bocki au Nord Cameroun","authors":"Didier Jean B. Haman, Fyetoh W. Fantong, G. O. A. Ewodo Mboudou, Gabriel Messi","doi":"10.4314/jcas.v18i1.5","DOIUrl":"https://doi.org/10.4314/jcas.v18i1.5","url":null,"abstract":"La présente étude a été effectuée pour déterminer les zones potentielles de recharge des eaux souterraines. Pour ce faire, la démarche méthodologique était basée sur l’analyse multicritère associée aux techniques géospatiales. Les données utilisées étaient entre autres les images satellitaires, les fonds cartographiques, les données pluviométriques et les niveaux statiques. Ces données ont permis d’exprimer sous forme de carte thématique les facteurs régissant la recharge (pente, drainage, lithologie, fracturation, sol, pluviométrie et occupation du sol). L’analyse de sensibilité par suppression d’un paramètre a permis d’établir l’ordre d’influence suivant : Lit > Sol > AACH > Df > Pl > Pe > Dd > OS. Le croisement de tous ces paramètres après pondération a conduit à l’élaboration de la carte qui montre que les zones à ort potentiel occupent 3 % de la zone d’étude pendant que les zones de faible à faible potentialité sont de l’ordre de 58 % dans le bassin. Les zones à potentialité moyenne quant à elles représentent 39%. Ce support cartographique constitue indéniablement un outil d’aide à la décision pour les gestionnaires de l’eau. \u0000 \u0000This study was carried out to determine potential groundwater recharge areas. To do this, the methodological approach was based on multi-criteria analysis associated with geospatial techniques. The data used were, among others, satellite images, base maps, rainfall data and static levels. These data made it possible to express in the form of a thematic map the factors governing the recharge (slope, drainage, lithology, fracturing, soil, rainfall and land use). The sensitivity analysis by deletion of a parameter made it possible to establish the following order of influence: Lit > Sol > AACH > Df > Pl > Pe > Dd > OS. The crossing of all these parameters after weighting led to the development of the map of potential recharge zones which revealed that the zones with high potential occupy 3% of the study zone while the zones with low to low potentiality are around 58% in the basin. Areas with average potential represent 39%. This cartographic support is undeniably a decision-making tool for water managers.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133598078","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}
M. O. Mustafa, I. Akinyemi, B. Oseni, M. Oladapo, A. N. Ejizu, C. O. Ezekwe, G.I. Okpara, O. Ajao, C. T. Olateru
Wildlife provides both consumptive and non-consumptive utilities to human beings around the world. Under wild animal utilization as food and medicine, some wildlife species have been overharvested. Coupled with environmental degradation affecting wildlife species in their habitats, the need to evaluate wildlife populations in Southwest Nigeria is therefore essential. Twenty-three wildlife markets along five highways in Southwest Nigeria were surveyed for two years to determine the pattern of mammalian and reptilian species occurrence; wild animal species assessed were freshly dead and roasted ones. The species named by literatures were tagged Expected while those found in the sales points were referred to as Observed. The names of species found were matched with literatures that established them. Indirect method of species of identification was questionnaire use among stakeholders of wildlife marketing (hunters, traders and farmers) selected through Systematic Random Sampling (Odd Method). This approach firstly identified the wildlife species being sold in the markets and their vernacular (Yoruba) names. These names were linked with literatures that confirmed their scientific names. Results revealed that twelve mammalian and three reptilian species were absent in all road markets. Implication of results is that mammals and reptiles which were absent in all market Roads are those whose populations have reduced in the wild. Recommendations for Government sensitisation on animals absent in the Sales Points about hunting pressure reduction through print and electronic media were first made. Conservation education among forest exploitation professionals, campaign against forest degradation and establishment of more forest reserves and National parks by Nigerian Government were made too.
{"title":"Mammalian and reptilian species expected and observed in roadside wildlife markets of southwest Nigeria and the implications for conservation","authors":"M. O. Mustafa, I. Akinyemi, B. Oseni, M. Oladapo, A. N. Ejizu, C. O. Ezekwe, G.I. Okpara, O. Ajao, C. T. Olateru","doi":"10.4314/jcas.v17i3.2","DOIUrl":"https://doi.org/10.4314/jcas.v17i3.2","url":null,"abstract":"Wildlife provides both consumptive and non-consumptive utilities to human beings around the world. Under wild animal utilization as food and medicine, some wildlife species have been overharvested. Coupled with environmental degradation affecting wildlife species in their habitats, the need to evaluate wildlife populations in Southwest Nigeria is therefore essential. Twenty-three wildlife markets along five highways in Southwest Nigeria were surveyed for two years to determine the pattern of mammalian and reptilian species occurrence; wild animal species assessed were freshly dead and roasted ones. The species named by literatures were tagged Expected while those found in the sales points were referred to as Observed. The names of species found were matched with literatures that established them. Indirect method of species of identification was questionnaire use among stakeholders of wildlife marketing (hunters, traders and farmers) selected through Systematic Random Sampling (Odd Method). This approach firstly identified the wildlife species being sold in the markets and their vernacular (Yoruba) names. These names were linked with literatures that confirmed their scientific names. Results revealed that twelve mammalian and three reptilian species were absent in all road markets. Implication of results is that mammals and reptiles which were absent in all market Roads are those whose populations have reduced in the wild. Recommendations for Government sensitisation on animals absent in the Sales Points about hunting pressure reduction through print and electronic media were first made. Conservation education among forest exploitation professionals, campaign against forest degradation and establishment of more forest reserves and National parks by Nigerian Government were made too.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122709985","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}
A. Nsangou, F. Meutchieye, T. K. Manchang, G. S. Bah
No Abstract.
没有抽象的。
{"title":"Corrigendum: Phenotypic characteristics and gene frequency of the Banyo Goudali zebu (Bosindicus) variety in the high Guinean Savannah zone of Cameroon","authors":"A. Nsangou, F. Meutchieye, T. K. Manchang, G. S. Bah","doi":"10.4314/jcas.v17i3.6","DOIUrl":"https://doi.org/10.4314/jcas.v17i3.6","url":null,"abstract":"No Abstract.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128602988","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}
Securidaca longepedunculata is a plant commonly used by African populations. Previous works have identified the main bioactive constituents; study the toxicity, analgesic, anti-inflammatory, antioxidant activities of the root barks. This work aims at developing an Improved Traditional Medicine (ITM) in ointmentbased on the hydroethanolic extract of the root barks. The plant material was analyzed to determine the physicochemical parameters. The hydroethanolic extract was used to formulate ointments with shea butter. The quality parameters of the ointment were determined and the primary irritability was checked in albino rabbits. The local anti-inflammatory activity was evaluated against croton oil and xylem inflammation in mice. It exhibited stability at a temperature of 30°C and showed no skin irritation. It inhibited 27% of the inflammation to croton oil. Triterpenic saponins and antiradical constituents were the main chemical markers identified. These results and the existing data can be used for the development of “SECUDOL ointment”, an ITM against painful and inflammatory joint manifestations.
{"title":"Formulation d’une pommade antalgique et anti-inflammatoire à base d’un extrait hydroalcoolique des écorces de racines de Securidaca longepedunculata Fresen (Polygalaceae)","authors":"D. Dembélé, A. Denou, Mahamane Haidara, R. Sanogo","doi":"10.4314/jcas.v17i3.3","DOIUrl":"https://doi.org/10.4314/jcas.v17i3.3","url":null,"abstract":"Securidaca longepedunculata is a plant commonly used by African populations. Previous works have identified the main bioactive constituents; study the toxicity, analgesic, anti-inflammatory, antioxidant activities of the root barks. This work aims at developing an Improved Traditional Medicine (ITM) in ointmentbased on the hydroethanolic extract of the root barks. The plant material was analyzed to determine the physicochemical parameters. The hydroethanolic extract was used to formulate ointments with shea butter. The quality parameters of the ointment were determined and the primary irritability was checked in albino rabbits. The local anti-inflammatory activity was evaluated against croton oil and xylem inflammation in mice. It exhibited stability at a temperature of 30°C and showed no skin irritation. It inhibited 27% of the inflammation to croton oil. Triterpenic saponins and antiradical constituents were the main chemical markers identified. These results and the existing data can be used for the development of “SECUDOL ointment”, an ITM against painful and inflammatory joint manifestations.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114508843","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}
Conrad Dieudonné Bébé Ndi, Boris Nouaye, M. Mbessa, Robert D. Friedman
Building roads in developing countries has always been very expensive. An efficient and more affordable method is needed. AggreBind’s soil stabilization solutions, known as RoadMaster (RM1 / RM2) and AggreBind (AGB-WT/BT) are offered. The objective of the present study was to make a geotechnical characterization of this product with a view towards its use in the construction, rehabilitation and maintenance of road infrastructure in Cameroon.A series of laboratory tests were carried out; soil identification tests (particle size analysis, Atterberg limits), lift tests (Proctor and modified CBR test), determination of the optimum water content of the material, maximum dry density, immediate CBR index and the CBR index after immersion for 4 days.Only the 95% OPM CBR test was carried out on the soil with the additive AGB-WT/RM1 in order to characterize the effects of the product on the soil.In conclusion, AggreBind/RoadMaster can provide stable, dust-free roads and stabilized base courses for general roads and highways that meet or exceed the bearing capacity requirements of international road specifications. In addition, the use of this product reduces the cost of road construction by 40% to60% and increases in-situ load bearing capacity by 400% to 600%.
{"title":"Geotechnical characterization of an innovative soil stabilization product (Aggrebind/Road Master) usable in the construction, rehabilitation and maintenance of road infrastructure and the construction of social housing in Cameroon","authors":"Conrad Dieudonné Bébé Ndi, Boris Nouaye, M. Mbessa, Robert D. Friedman","doi":"10.4314/jcas.v17i3.5","DOIUrl":"https://doi.org/10.4314/jcas.v17i3.5","url":null,"abstract":"Building roads in developing countries has always been very expensive. An efficient and more affordable method is needed. AggreBind’s soil stabilization solutions, known as RoadMaster (RM1 / RM2) and AggreBind (AGB-WT/BT) are offered. The objective of the present study was to make a geotechnical characterization of this product with a view towards its use in the construction, rehabilitation and maintenance of road infrastructure in Cameroon.A series of laboratory tests were carried out; soil identification tests (particle size analysis, Atterberg limits), lift tests (Proctor and modified CBR test), determination of the optimum water content of the material, maximum dry density, immediate CBR index and the CBR index after immersion for 4 days.Only the 95% OPM CBR test was carried out on the soil with the additive AGB-WT/RM1 in order to characterize the effects of the product on the soil.In conclusion, AggreBind/RoadMaster can provide stable, dust-free roads and stabilized base courses for general roads and highways that meet or exceed the bearing capacity requirements of international road specifications. In addition, the use of this product reduces the cost of road construction by 40% to60% and increases in-situ load bearing capacity by 400% to 600%.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114239913","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}
Adequate and equitable distribution of health care facilities in rural areas is critical to human capital development. The study determines distance as a factor influencing utilization of health facilities in Bali-Nyonga. The main objective of the research is to evaluate the socio-economic effect of distance to health care in Bali-Nyonga. Data for this were gathered through field observation, face to face interview and questionnaires. Data from secondary sources included publish and unpublished material which was presented in form of related literature review. The data were analyzed using descriptive measures and presented in the form of tables, chart, percentages and graphs. In Bali-Nyonga, where the condition of roads is very poor, distance from the nearest health facility emerges as the most important factor influencing utilization. The vulnerable groups of women, the age, sickly, the illiterate and the poor were not found to be more strongly affected by distance decay. The policy implication arising from this study suggest that distance to improve health care needs to be reduce to enhance accessibility and to improved health service by various socio-economic groups in the area. It was recommended to strengthen the efforts to improve accessibilities of health care facilities in the rural areas by increasing the number of health facilities, transport and sensitization of the rural indigenes.
{"title":"Factors affecting access to health care facilities in a rural Community: The case of Bali-Nyonga Sub-Division, Cameroun","authors":"Maturin Désiré Sop Sop, Basile Eloundou Messi","doi":"10.4314/jcas.v17i3.4","DOIUrl":"https://doi.org/10.4314/jcas.v17i3.4","url":null,"abstract":"Adequate and equitable distribution of health care facilities in rural areas is critical to human capital development. The study determines distance as a factor influencing utilization of health facilities in Bali-Nyonga. The main objective of the research is to evaluate the socio-economic effect of distance to health care in Bali-Nyonga. Data for this were gathered through field observation, face to face interview and questionnaires. Data from secondary sources included publish and unpublished material which was presented in form of related literature review. The data were analyzed using descriptive measures and presented in the form of tables, chart, percentages and graphs. In Bali-Nyonga, where the condition of roads is very poor, distance from the nearest health facility emerges as the most important factor influencing utilization. The vulnerable groups of women, the age, sickly, the illiterate and the poor were not found to be more strongly affected by distance decay. The policy implication arising from this study suggest that distance to improve health care needs to be reduce to enhance accessibility and to improved health service by various socio-economic groups in the area. It was recommended to strengthen the efforts to improve accessibilities of health care facilities in the rural areas by increasing the number of health facilities, transport and sensitization of the rural indigenes.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123125829","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 present study was conducted to assess the environmental quality status and macroinvertebrate community structures of wetlands using macroinvertebrates as bioindicators. A multimetric biotic index approach was used for the study. The findings revealed 3,367 macroinvertebrates belonging to 37 families. The percentages of Ephemeroptera, Odonata, and Tricoptera (%EOT), percent Diptera, percent filterercollectors, the ratio of Ephemeroptera, Plecoptera, and Trichoptera to Chironomid (EPT/C), the Biological Monitoring Working Party Score, and the Shannon–Wiener diversity index were all significantly related to human disturbance and could be used to assess water quality. Based on the macroinvertebrate index, human disturbance had a significant impact on Shesher wetland, a relatively lower impact on Avaji and Yitamot, and a moderate impact on Chimba, while Dena and Wonjeta had good habitat quality. Their water quality was very poor, poor, moderate, and very good, in that order. Farming, leather tanning, waste dumping, and effluent discharges were responsible for the poor habitat quality of impacted wetlands. Therefore, unless managed properly, human disturbance activities in the wetlands catchment were threatening macroinvertebrates and the wetlands ecosystem. Hence, implementation of catchment-based management together with continuous health status monitoring and a standalone wetland policy should be established.
以大型无脊椎动物为生物指标，对湿地环境质量状况和大型无脊椎动物群落结构进行了评价。采用多指标生物指数法进行研究。研究结果显示，有3367种大型无脊椎动物属于37科。其中，蜉蝣目、翅目、Tricoptera的百分比(%EOT)、双翅目百分比、过滤收集类百分比、蜉蝣目、翅目、Tricoptera / chironomia的比例(EPT/C)、生物监测工作小组评分(Biological Monitoring Working Party Score)和Shannon-Wiener多样性指数均与人为干扰显著相关，可用于水质评价。基于大型无脊椎动物指数，人类干扰对Shesher湿地的影响显著，对Avaji和Yitamot的影响相对较低，对Chimba的影响中等，而Dena和Wonjeta的栖息地质量较好。他们的水质依次是很差、差、一般、很好。农业、皮革制革、废物倾倒和污水排放是造成受影响湿地栖息地质量差的原因。因此，如果管理不当，湿地流域的人为干扰活动将对大型无脊椎动物和湿地生态系统构成威胁。因此，应实施以集水区为基础的管理，同时持续监测健康状况，并制定独立的湿地政策。
{"title":"The environmental quality and macroinvertebrate community structures of wetlands found in the Lake Tana Watershed, Ethiopia","authors":"I. Mohammed, A. Wondie, Minwyelet Mengist","doi":"10.4314/jcas.v17i3.1","DOIUrl":"https://doi.org/10.4314/jcas.v17i3.1","url":null,"abstract":"The present study was conducted to assess the environmental quality status and macroinvertebrate community structures of wetlands using macroinvertebrates as bioindicators. A multimetric biotic index approach was used for the study. The findings revealed 3,367 macroinvertebrates belonging to 37 families. The percentages of Ephemeroptera, Odonata, and Tricoptera (%EOT), percent Diptera, percent filterercollectors, the ratio of Ephemeroptera, Plecoptera, and Trichoptera to Chironomid (EPT/C), the Biological Monitoring Working Party Score, and the Shannon–Wiener diversity index were all significantly related to human disturbance and could be used to assess water quality. Based on the macroinvertebrate index, human disturbance had a significant impact on Shesher wetland, a relatively lower impact on Avaji and Yitamot, and a moderate impact on Chimba, while Dena and Wonjeta had good habitat quality. Their water quality was very poor, poor, moderate, and very good, in that order. Farming, leather tanning, waste dumping, and effluent discharges were responsible for the poor habitat quality of impacted wetlands. Therefore, unless managed properly, human disturbance activities in the wetlands catchment were threatening macroinvertebrates and the wetlands ecosystem. Hence, implementation of catchment-based management together with continuous health status monitoring and a standalone wetland policy should be established. ","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"67 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128554710","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 effects of climate change are felt most at the household level, when taps and springs run dry for several weeks or months, forcing people to access potable water from doubtful sources. There has been an increase in the population of Bamenda III without a proportionate increase in the water supply capacity. This has resulted in severe water crises, even though Bamenda III municipality has water supplies from the Council, Community, CAMWATER, natural springs and streams, wells and boreholes. Household data on water accessibility against a backdrop of a changing climate was collected using 269 questionnaires to assess perceptions on the state of water resources and climate. Rainfall data were collected from 1963-2019 and results revealed that mean annual rainfall is at 182.52 mm, with a standard deviation of 29.16 and a Coefficient of Variation of 15.69%, while the mean Standardized Precipitation Index is -0.07 (mild dryness), and rainfall has reduced by -2.07 mm from 1963-2019. The population attributed problems of water accessibility to climate change, urbanization and poor water governance. It is recommended that sustainable water management through Nature-based Solutions and Ecosystem-based Adaptation should be implemented from the watershed to the community level.
{"title":"Impact of climate change on domestic water accessibility in Bamenda III Sub-Division, North West region, Cameroon","authors":"Suiven John Paul Tume","doi":"10.4314/jcas.v17i2.4","DOIUrl":"https://doi.org/10.4314/jcas.v17i2.4","url":null,"abstract":"The effects of climate change are felt most at the household level, when taps and springs run dry for several weeks or months, forcing people to access potable water from doubtful sources. There has been an increase in the population of Bamenda III without a proportionate increase in the water supply capacity. This has resulted in severe water crises, even though Bamenda III municipality has water supplies from the Council, Community, CAMWATER, natural springs and streams, wells and boreholes. Household data on water accessibility against a backdrop of a changing climate was collected using 269 questionnaires to assess perceptions on the state of water resources and climate. Rainfall data were collected from 1963-2019 and results revealed that mean annual rainfall is at 182.52 mm, with a standard deviation of 29.16 and a Coefficient of Variation of 15.69%, while the mean Standardized Precipitation Index is -0.07 (mild dryness), and rainfall has reduced by -2.07 mm from 1963-2019. The population attributed problems of water accessibility to climate change, urbanization and poor water governance. It is recommended that sustainable water management through Nature-based Solutions and Ecosystem-based Adaptation should be implemented from the watershed to the community level.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120838597","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 study sought to find out the psychospiritual impact of COVID-D as a result of the imposition of preventive measures. The study was carried out in the Mezam Division of the North West Region of Cameroon. A mixed research approach was used for the study with the aid of a questionnaire and an interview guide. A convenient sampling technique was chosen for the study based on the availability of the 50 respondents chosen for the study, using the snowball technique. The results of the study reveal that the most acceptable preventive measures that people complied to were personal hygiene (100%), taking of African traditional concoction treatments (100%) and prayers to God (100%). Psychologically, 60% of the respondents expressed symptoms of anxiety, while 30% expressed symptoms for stress and 20% expressed symptoms of depression. Spiritually, all 50 respondents (100%) indicated that their spiritual activities have been disrupted by the pandemic, which poses a real problem for an African oriented society where religion and spiritual activities are common. In conclusions, it was evident that psychospiritual dissonance including mixed and faulty beliefs on those claiming to provide solutions complicated peoples’ understanding of the realities of the situations.
{"title":"Psychospiritual impact of COVID-19: Africentric Perspectives","authors":"T. Tchombe","doi":"10.4314/jcas.v17i2.5","DOIUrl":"https://doi.org/10.4314/jcas.v17i2.5","url":null,"abstract":"This study sought to find out the psychospiritual impact of COVID-D as a result of the imposition of preventive measures. The study was carried out in the Mezam Division of the North West Region of Cameroon. A mixed research approach was used for the study with the aid of a questionnaire and an interview guide. A convenient sampling technique was chosen for the study based on the availability of the 50 respondents chosen for the study, using the snowball technique. The results of the study reveal that the most acceptable preventive measures that people complied to were personal hygiene (100%), taking of African traditional concoction treatments (100%) and prayers to God (100%). Psychologically, 60% of the respondents expressed symptoms of anxiety, while 30% expressed symptoms for stress and 20% expressed symptoms of depression. Spiritually, all 50 respondents (100%) indicated that their spiritual activities have been disrupted by the pandemic, which poses a real problem for an African oriented society where religion and spiritual activities are common. In conclusions, it was evident that psychospiritual dissonance including mixed and faulty beliefs on those claiming to provide solutions complicated peoples’ understanding of the realities of the situations.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124300260","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}
Despite enormous efforts deployed and considerable positive results obtained in the global fight against the Coronavirus disease 2019 (COVID-19) the scourge remains a major international public health hazard. The main control measures at the onset consisted in the application of barrier and hygiene measures to stop the spread of the virus and case identification and clinical management of symptoms in the absence of widely available anti-COVOD-19 drugs. Vaccination as a major control measure became widely available in the advanced countries of the global north, but not in Africa where less than 5-10% 0f the population are vaccinated against COVID-19. However, African countries, possibly excluding South Africa, have been less impacted by COVID-19 pandemic as they registered fewer cases, hospitalizations and deaths. Herein it is postulated that the wide use of African traditional Phytomedicines (herbal medicines) has contributed, at least in part, to the better control of the COVID-19 pandemic in Africa. Abundant evidence in the literature suggests the availability of anti-viral, anti-oxidant and immune-stimulatory agents in the proposed COVID-19 herbal remedies., these activities being similar to those the standard drugs used in the standard treatment/ management of COVID-19. The review also examines a number of COVID-19 herbal medicines including COVID Organics CVO (Madagascar) ADSAR, ELISIR COVID, COROCUR (Cameroon) IHP Detox Tea (Nigeria) and COVIDEX (Uganda) and notes that though approved by the competent authorities in the respective African countries, these phytomedicines have not been approved by the WHO. It is proposed that additional studies be carried out to validate the Africa herbal remedies for possible use as stand-alone or complementary treatment of COVID-19 in addition to vaccination and barrier and hygiene control measures.
{"title":"COVID-19 Response: The case for Phytomedicines in Africa with particular focus on Cameroon","authors":"V. Titanji","doi":"10.4314/jcas.v17i2.6","DOIUrl":"https://doi.org/10.4314/jcas.v17i2.6","url":null,"abstract":"Despite enormous efforts deployed and considerable positive results obtained in the global fight against the Coronavirus disease 2019 (COVID-19) the scourge remains a major international public health hazard. The main control measures at the onset consisted in the application of barrier and hygiene measures to stop the spread of the virus and case identification and clinical management of symptoms in the absence of widely available anti-COVOD-19 drugs. Vaccination as a major control measure became widely available in the advanced countries of the global north, but not in Africa where less than 5-10% 0f the population are vaccinated against COVID-19. However, African countries, possibly excluding South Africa, have been less impacted by COVID-19 pandemic as they registered fewer cases, hospitalizations and deaths. Herein it is postulated that the wide use of African traditional Phytomedicines (herbal medicines) has contributed, at least in part, to the better control of the COVID-19 pandemic in Africa. Abundant evidence in the literature suggests the availability of anti-viral, anti-oxidant and immune-stimulatory agents in the proposed COVID-19 herbal remedies., these activities being similar to those the standard drugs used in the standard treatment/ management of COVID-19. The review also examines a number of COVID-19 herbal medicines including COVID Organics CVO (Madagascar) ADSAR, ELISIR COVID, COROCUR (Cameroon) IHP Detox Tea (Nigeria) and COVIDEX (Uganda) and notes that though approved by the competent authorities in the respective African countries, these phytomedicines have not been approved by the WHO. It is proposed that additional studies be carried out to validate the Africa herbal remedies for possible use as stand-alone or complementary treatment of COVID-19 in addition to vaccination and barrier and hygiene control measures.","PeriodicalId":383706,"journal":{"name":"Journal of the Cameroon academy of sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130453039","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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