IOSR-JESTFT   Volume-20 ~ Issue-1 ~ January 2026

Abstract: Résumé La ville de Bukavu, en République Démocratique du Congo, connaît une adoption croissante des technologies solaires domestiques dans un contexte de crise énergétique chronique, marqué par la défaillance du réseau public (SNEL) et l’absence de gouvernance structurée. Cette recherche propose une lecture critique et interdisciplinaire de la transition...

[1]. Agence Internationale De L’énergie (AIE). (2019). Perspectives Energétiques Pour l’Afrique 2019. Paris : AIE.
[2]. Agence Internationale De L’énergie (AIE). (2023). Énergies Renouvelables 2023 : Analyse Et Prévisions Jusqu’en 2028. Paris : AIE.
[3]. Agence Internationale Pour Les Energies Renouvelables (IRENA). (2020). Analyse Du Marché Des Energies Renouvelables : l’Afrique Et Ses Régions. Abu Dhabi : IRENA.
[4]. Agence Internationale Pour Les Energies Renouvelables (IRENA). (2022). Perspectives De Transition Energétique Mondiale : Trajectoire 1,5 °C. Abu Dhabi : IRENA.
[5]. Ahlborg, H., & Nightingale, A. J. (2018). Theorizing Power In Political Ecology: The ‘Where’ Of Power In Resource Governance Projects. Journal Of Political Ecology, 25(1), 381–401..

Abstract: Zinc is an important element in human metabolism. It is absorbed in intestine and binds to plasma proteins. It is abundantly used in various types of industries. The workers exposed to this metal in their work environment take up this metal via respiration, ingestion and absorption through exposed parts of the skin. In this investigation the assessment of Zinc in human body is done by using biological tissues like hair and nail. The proteins in the tissues bind with the metal. The tissues are wet acid digested and converted into water clear solution. The analysis is affected...

Keywords: Zinc, Atomic Absorption Spectrophotometer, Hair, Nails

[1]. Nriagu J O (Ed) Zinc In The Environment, John Wileyand Sons, New York (1980)
[2]. Sharma BM, Komprdová K, Lörinczová K, Kuta J, Přibylová P, Scheringer M, Šebejová L, Piler P, Zvonař M And Klánová J Expo Sci Environ Epidemiol. 35 (2025) 730–745
[3]. Kneip T J, Eisenbud M, Strehlow C D And Freudenthal P J Air Pollut Control Assoc 20 (1970) 144-149
[4]. Tabor E C And Warren W V Arch Ind Hyg 17 (1958) 145-151
[5]. Zoeteman B C J And Brinkmann F J J Proc European Scientific Colloquium, Luxembourg Pergamon Press, Oxford (1976) 173-211

Abstract: Introduction: Baked goods and pastries play an important role in the diet of the Democratic Republic of Congo (DRC). However, almost all of the wheat flour used to make these products is imported. To reduce import costs, one solution is to promote the use of local flours as a partial substitute for wheat flour. Several studies have already been conducted in this area. The aim of this study was to review studies aimed at partially replacing wheat flour...

Keywords: Local flours, wheat, baking, pastry making, substitution

[1] Tshite NF, Tshiombe MV, Masimango NJT. Mise Au Point D’une Farine Précuite A Base De Maïs (Zea Mays) Et De Soja (Glycine Max) Par La Méthode Traditionnelle. Int. J. Biol. Chem. Sci. 2015. 9(6): 2608-2622.
[2] Minangu MJD. Les Importations Alimentaires En République Démocratique Du Congo : Un Milliard Cinq Cents Millions De USD Par An Pour Importer De La Nourriture, C'est Trop ! EDITORIAL. RAFEA, 2019; 2(2): 1-1[3]
Georges C. Les Politiques Alimentaires Sont-Elles Adaptées Aux Changements D'habitudes Alimentaires En Afrique Au Sud Du Sahara ? Économie Rurale. 1989 ; 190 (1) : 21-26.
[4] PAM (Programme Alimentaire Mondial). Profil Des Marchés Pour Les Evaluations D’urgence De La Sécurité Alimentaire En République Démocratique Du Congo. Service De l’Evaluation Des Besoins D’urgence. 2006.
[5] Tisseau V. Le Pain Et Le Riz, Emblèmes Identitaires En Situation Coloniale (Hautes Terres Centrales De Madagascar, 19ème - 20ème Siècles). Revue Historique De L’océan Indien. 2013; 1: 195-206

Abstract: Background: Rapid urbanization and population pressure in informal settlements have intensified solid waste generation and contributed to deteriorating air quality in many cities in the Global South. This study examined the types and sources of solid waste and their influence on air quality in Kibera Sub-County, Nairobi City County, Kenya. Anchored on Waste Management Theory and the Theory of Planned Behavior, the study adopted a cross-sectional research design integrating quantitative and qualitative approaches.
Materials and..

Keywords: Solid waste; Waste types and sources; Air quality; Informal settlements; Waste management practices

[1]. Adedara, M. L., Taiwo, R., & Bork, H.-R. (2023). Municipal Solid Waste Collection And Coverage Rates In Sub-Saharan African Countries: A Comprehensive Systematic Review And Meta-Analysis. Waste, 1(2), 389–413.
[2]. Agyeman, J., Osei, R., & Tufuor, A. (2021). Waste Accumulation And Community Exposure In Dense Urban Settlements. Environmental Science And Pollution Research, 28(44), 62371–62383.
[3]. Amegah, A. K. (2021). Improving Urban Air Quality In Sub-Saharan Africa. Science Of The Total Environment, 755, 142–150.
[4]. Amoako, C., & Frimpong, L. (2020). Waste Handling Practices In Rapidly Urbanising African Cities. Cities, 105, 102–114.
[5]. Anokye, P. A., Frimpong, S., & Boadu, G. K. (2024). Open Burning Of Solid Waste And Respiratory Exposure In Low-Income Settlements. Environmental Pollution, 336, 122–134.

Abstract: Background: The primary resource that all living things on planet earth require in order to survive and developed is water. River water is the primary source of water for irrigation and domestic uses, hence monitoring it is quite necessary. The main aim of the current study is to evaluate the physico-chemical characteristics, macrophyte diversity and fish diversity of Ningthoukhong River of Bishnupur District of Manipur. The Ningthoukhong River originates in the....

Keywords: Water quality, Macrophytes, fish diversity, Ningthoukhong River, Manipur

[1]. APHA, “Standard Methods For The Examination Of Water And Waste Water”, American Public Health Association, Washing D.C, 2005.
[2]. Das, A., & Singh, R. (2023). Study On Physico-Chemical Properties And Macrophyte Diversity Of Haora River, West Tripura District, India.
[3]. Singh, K. Khelchandra; Sharma, B. Manihar; Usha, Khuraijam. (2013). Inventory Of Aquatic Macrophyte In Lake Kharungpat, India. Journal Of Energy Technologies And Policy, 3(11), 64-75.
[4]. S. Suma And R.K. Rajeshwari (2013): Assessment Of Water Quality And Pollution Status Of Nambol River, Manipur. An International Journal Of Theoretical And Applied Science, 5(1): 67-74.
[5]. Singh A, Meetei N. S And L.B. (2013): Seasonal Variation Of Some Physico-Chemical Characteristics Of Three Major River Of Imphal, Manipur: A Comparative Evaluation. Curr. World Environ. 2013;8(1).