Vol. 92 No. 1 (2023)

Articles

• Optimized PID, FOPID and PIDD2 for Controlling UAV Based on SSA

  Nagham M. Abdulridha, Prof. Dr. Ali Hussien Mary, Asst. Prof. Dr. Hisham H. Jasim

  77-90

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• COVID-19 Mortality Prediction: A Case Study for Istanbul

  Erkan Yilmaz, Ekrem Aydiner, Özgur Ökcu

  26-45

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• Distributed Leadership Practices of Principals in Government Secondary Schools of East Shewa Zone

  Zereyaikob Gebresilassie, Kenenissa Dabi (Ph.D.)

  179-198

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• Analysis of the Opportunities and Challenges of Construction and Demolition Waste Management Methods Using PESTEL Analytical Tool

  Oluwasegun Emmanuel, Vsevolod Nikolaiev

  46-70

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• Leaving the Abstract for the Concrete in Written Expression in Elementary School in Benin

  Agbodjinou Germain Alladakan, Pierre Chanou, Justin C. Ayelo, A. Débora Gladys Hounkpe, Bellor Gnambode, Léandre Allohou

  204-215

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• Effect of Organic Matter on Growth of Arabica Coffe (Coffea Arabica) Variety

  Agostinho da C. Moniz, Natalino de Araújo, Donata O. de Araujo, Lucio Marcal Gomes, Salensia H. Afonso

  199-203

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• Type and Technical, Allocative and Economic Efficiencies in Agricultural Production: The Case of Women Market Gardeners in the Ouémé Valley in Southern Benin

  Dr Blanchard Felix DOSSOU

  160-178

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• COVID-19: History, Etiology, Epidemiology, and Pathogenesis

  Tsvetko Vasilev Grigorov

  153-159

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• Studies on Installation of Floating Photovoltaic Systems in Water Reservoirs of Several Hydropower Plants in Greece

  John Vourdoubas

  108-123

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• Valuation of Startups Focused on Circular Economy: The Therpol Case

  Rodrigo Tetti Garcia, Claudio Alves dos Santos, Aline Basani, Rodolfo Leandro de Faria Olivo

  91-107

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• Evidencing Local Climate Change And Its Implications for Subsistence Agriculture Planning In Huambo Province Angola, Southern Africa

  Paulo M. Kiala, Ian A. Simpson

  135-152

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• Impact of Enset Participation in Value Chain on Smallholder Household Food Security and Income in Southwestern Ethiopia

  Toyiba Shafi, Jema Haji , Lemma Zemedu, Abule Mehare

  1-25

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• Acetone Adsorption to Co3O4?111?Surface: A Density Functional Theory (DFT) Study

  Yanyun Feng, Haiming Zhang, Peng Lu, Xiaomin Jia

  71-76

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• Assessment of Carbon Stock and Greenhouse Gas Emissions of Selected Coffee-Based Agroforestry Farms in Timor Leste

  Natalino de Araújo, Diomedes A. Racelis, Roberto G. Visco, Rodel D. Lasco, Analyn L. Codilan

  124-134

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