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All Journal Konfrontasi: Jurnal Kultural, Ekonomi dan Perubahan Sosial Britain International of Exact Sciences Journal (BIoEx Journal)
Koto-te-Nyiwa Ngbolua
Department of Biology, Faculty of Science, University of Kinshasa, Kinshasa, Democratic Republic of the Congo
Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Mathematics Medicine & Pharmacology Physics Social Sciences

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 1 
First Report on Three Cases of Monkey pox in Nord Ubangi Province (Democratic Republic of the Congo) Koto-te-Nyiwa Ngbolua; Guy Kumbali Ngambika; Blaise Mbembo-wa-Mbembo; Kohowe Pagerezo Séraphin; Kogana Kapalata Fabrice; Gédéon Ngiala Bongo; Masengo Ashande Colette; Djolu Djoza Ruphin
Britain International of Exact Sciences (BIoEx) Journal Vol 2 No 1 (2020): Britain International of Exact Sciences Journal, January
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v2i1.117

Abstract

Monkey pox is a rare viral zoonotic disease of which clinical manifestations are similar to smallpox, it is transmitted to humans by direct contact with the body of an infected animal, but the transmission can also be human-to-human. The Democratic Republic of Congo is the most endemic country in the world where almost all provinces are affected by this scourge. However, in the administrative configuration currently, monkey pox has not been detected in Nord Ubangi province yet. This cross-sectional study focuses on three cases of patients diagnosed with monkey pox virus at Businga General Hospital in Nord Ubangi province. The findings show that all the three patients were male with a primary education level and their average age was 9±3.46 years. They had some epidemiological characteristics specific to monkey pox, including high fevers, rashes, pruritus and abdominal pain. After two weeks of symptomatic treatment, each patient was able to get out without further complications. For the best of our knowledge, this is the first report on the cases of Monkey pox in Nord Ubangi Province.
TLC Profiling of Leaves Extracts of Some Aloe Threatened Species Endemic to Madagascar for Their Antioxidant Activity Rokiman Letsara; Rigobert Andrianantenaina; Gédéon Ngiala Bongo; Colette Masengo Ashande; Mahendra Ilmi S Matondang; Koto-te-Nyiwa Ngbolua; Baholy Robijaona Rahelivololoniaina
Britain International of Exact Sciences (BIoEx) Journal Vol 2 No 3 (2020): Britain International of Exact Sciences Journal, September
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v2i3.304

Abstract

The World Health Organization reported that at least 80% of populations rely on traditional medicine and medicinal plants for their primary health care. Due to their phytochemical compounds, the plants of the Aloe genus are reported to have high potential antiCovid-19 (and antioxidant properties. The aim of this study is to evaluate the in vitro antioxidant activity of some Malagasy endangered species of Aloe genus. The ethanolic extract of few Aloe of Madagascar leaf extracts was fractionated by liquid-liquid partition using hexane. In total 18 different fractions from 9 species have been used to determine their antioxidant activity through in vitro model by using 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assay. Both hexanic extract and aqueous extract displayed antioxidant activities in four species. The most evident antioxidant activity was expressed by A. helenae.
Development of a Watershed Management Plan to Protect Soil and Water Resources, Case of Imady Region Amoron’ny Mania Razafindrazanakolona A.D.; Robijaona Rahelivololoniaina B.; Rakotonirina M.D.L.; Koto-Te-Nyiwa Ngbolua; Rabesiaka R.
Konfrontasi: Jurnal Kultural, Ekonomi dan Perubahan Sosial Vol 10 No 1 (2023): Konfrontasi, March
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/konfrontasi2.v10i1.262

Abstract

Unsustainable development has often threatened watershed ecology in many parts of the world, and population growth has played a major role in this process. Our study consists of the development of a watershed management plan. The degradation of environments by bushfire, timber exploitation, and firewood harvesting dew soil and pollutes spring water, in addition, there are also negative impacts on the physicochemical property of the soil. This research aims to put in place a watershed management plan to restore the soil and the soil pit against erosion. The development also allows for the protection of water resources and the pollution generated by this degradation. The study specifies the physical characteristics of the watershed: altitude, slope, and constant of Graveluis. We also examine the physicochemical properties of the soil: structure, texture, and pH. After the study of the soil, we also determined the measure of the flow of the source, the organoleptic analysis, and also the physicochemical and bacteriological analysis. The results of this work once made available to the authorities of the basic data could be exploited in the framework of the improvement of the quality of water intended for human consumption. To fight against water pollution, the easiest measure to apply is a large awareness campaign.
Recovery of Glass Waste in the Manufacture of Cement Mortar Razafimahefa M. V.; Rajeriarison A. T.; Randriantsimbazafy A.; Rakotomamonjy P.; Razafindramanga A.W.; Rakotomamonjy L.; Koto-te-Nyiwa Ngbolua; Robijaona Rahelivololoniaina B.
Britain International of Exact Sciences (BIoEx) Journal Vol 5 No 2 (2023): Britain International of Exact Sciences Journal, May
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v5i2.878

Abstract

Almond powder of Irvingia smithii has been incorporated, at the doses of 25 and 50 %, in mice standard ration (prepared by Matadi mill), at INRB, composed of wheat flour, wheat bran and pellets for rabbits to evaluate weight gain, live weight gain and feed conversion and to assess motor activity after 50 days of feeding. Results showed an average increase in live weight gain of 31.08% and 8.36% for the groups of mice fed food supplemented with Irvingia smithii almond powder respectively at 25% and 50% higher than the group of control mice fed exclusively with the standard food. On the other hand, the food consumption index (F.C.I) was very low for the group of mice fed with the food supplemented at 50% (F.C.I. 27.73) and low for the group of mice fed 25% supplemented food (F.C.I. 64.83) compared to the control group (F.I.C. 108,14). In addition, the groups of mice fed the supplemented food did not show motor weakness, even fewer respiratory complications or health problems compared to the control during these 50 days of observation. Live weight gain sufficiently demonstrates the nutritional value of the kernel of I. smithii.
Valorization of Agricultural Waste into Ecological Coal in the Region of Vakinankaratra Ranaivoson S. L. O.; Rakotomamonjy P.; Razafindramanga A. W; Razafimahefa M.V; Razafindrakoto N.R.F.; Letsara R.; Andriatsilavo M.H.; Koto-te-Nyiwa Ngbolua; Robijaona Rahelivololoniaina B.
Britain International of Exact Sciences (BIoEx) Journal Vol 5 No 2 (2023): Britain International of Exact Sciences Journal, May
Publisher : Britain International for Academic Research (BIAR) Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/bioex.v5i2.879

Abstract

Ecological charcoal is coal produced from biodegradable residues rich in carbon, mainly from agricultural residues. This charcoal has been obtained with different operations such as carbonization, molding and compacting to obtain briquettes. To ensure the quality of the coal, several analyses were carried out in the laboratories. The physicochemical characteristics such as moisture content, ash content, fixed carbon content; volatile matter index and lower calorific value are analyzed to better exploit their uses. Its exploitation has many advantages especially in the field of health and environment, especially for the reduction of deforestation and air pollution. This research gives 5 varieties of ecological coal obtained by the valorization of agricultural waste in the region of Vakinankaratra, a region located in the highlands of Madagascar and known for its high potentiality in agriculture and livestock. It is about the valorization of rice straw, rice husk, corn straw, banana peelings, and soybean stalks.
Co-Authors Andriatsilavo M.H. Baholy Robijaona Rahelivololoniaina Blaise Mbembo-wa-Mbembo Colette Masengo Ashande Djolu Djoza Ruphin Gédéon Ngiala Bongo Gédéon Ngiala Bongo Guy Kumbali Ngambika Kogana Kapalata Fabrice Kohowe Pagerezo Séraphin Letsara R. Mahendra Ilmi S Matondang Masengo Ashande Colette Rabesiaka R. Rajeriarison A. T. Rakotomamonjy L. Rakotomamonjy P. Rakotonirina M.D.L. Ranaivoson S. L. O. Randriantsimbazafy A. Razafimahefa M. V. Razafimahefa M.V Razafindrakoto N.R.F. Razafindramanga A. W Razafindramanga A.W. Razafindrazanakolona A.D. Rigobert Andrianantenaina Robijaona Rahelivololoniaina B. Robijaona Rahelivololoniaina B. Rokiman Letsara