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Hydrogeochemical Characterization and Appraisal of Groundwater Quality in Yisr River Catchment, Blue Nile River Basin, Ethiopia, by Using the GIS, WQI, and Statistical Techniques

Abebaw Demelash, Abunu Atlabachew, Muralitharan Jothimani, Abel Abebe • Journal of Chemistry (2023)

Groundwater is a primary drinking, agricultural, domestic, and nondomestic water source in Ethiopia’s Yisr River watershed of the Blue Nile River basin. There has been no systematic investigation of the hydrogeochemical properties of ground...

DOAJ Open Access (DOAJ) DOI: 10.1155/2023/8199000

Assessment of sediment yield and accumulation in reservoir: The case of Gibe One Reservoir, Southwestern Ethiopia

Hailu Gisha Kuma, Ermias Mekonnen Chinasho, Abrham Asha Tolke • Heliyon (2024)

Soil erosion and sediment buildup are the factors that speed up the decline in capacity and function of reservoirs, agricultural products, and water resources. In order to simulate sediment and runoff and map high sediment-yielding sub-basi...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2024.e36315

Adaptive Tracking Control of Anchoring Unit for Pipeline Intelligent Plugging Robot Based on Improved Deep Deterministic Policy Gradient

Tingting Wu, Yaxin Liu, Laihe Qi, Pu Wang et al. • Machines (2026)

A pipeline intelligent plugging robot (PIPR) is an important tool in subsea pipeline maintenance and emergency repair. Precise position-tracking control is crucial for the in-pipe plugging operation of a PIPR. The anchoring module is the ke...

DOAJ Open Access (DOAJ) DOI: 10.3390/machines14060675

Operation strategies of n-DAMO and Anammox process based on microbial interactions for high rate nitrogen removal from landfill leachate

Wen-Bo Nie, Guo-Jun Xie, Jie Ding, Lai Peng et al. • Environment International (2020)

Nitrate/nitrite-dependent anaerobic methane oxidation (n-DAMO) coupling to Anaerobic ammonium oxidation (Anammox) provides an opportunity for simultaneous nitrogen removal and methane emissions mitigation from wastewater. However, to achiev...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.envint.2020.105596

Understanding the Attitudes of Communities to the Social, Economic, and Cultural Importance of Working Donkeys in Rural, Peri-urban, and Urban Areas of Ethiopia

Martha Geiger, Jo Hockenhull, Henry Buller, Gebre Tefera Engida et al. • Frontiers in Veterinary Science (2020)

Working donkeys (Equus africanus asinus) are vital to the development and support of people's livelihoods in rural, peri-urban, and urban areas of Ethiopia. However, despite their critical role in providing transport, food security, and inc...

DOAJ Open Access (DOAJ) DOI: 10.3389/fvets.2020.00060

Differential Remodelling of Endometrial Extracellular Matrix in the Non-Pregnant Uterus of <i>Lagostomus maximus</i> as a Potential Mechanism Underlying Embryonic Death

Francisco Acuña, Gisela Soledad Gualdoni, Francisco Rivollier, Camila Barril et al. • Animals (2025)

During development, the remodelling of fibrillar components of the uterine extracellular matrix (ECM), mediated by the matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs), plays an essential role in embryonic survival. Prev...

DOAJ Open Access (DOAJ) DOI: 10.3390/ani15040542

Le rayon de déforestation autour de la ville de Lubumbashi (Haut-Katanga, R.D. Congo): synthèse

Useni Sikuzani, Y., Malaisse, F., Cabala Kaleba, S., Munyemba Kankumbi, F. et al. • Tropicultura (2017)

The Deforestation Radius Around Lubumbashi City (Upper Katanga, DR Congo): Synthesis. The Miombo woodland is a type of vegetation widely distributed in Zambezian Africa where it provides timber and non-timber forest products to millions of ...

DOAJ Open Access (DOAJ)

Bioecological Study on the Sand Flies (Diptera: Psychodidae, Phlebotominae) in Sari County, North of Iran

Nasibeh Hosseini-Vasoukolaei, Leila Ghavibazou, Amir Ahmad Akhavan, Ahmad Ali Enayati et al. • Journal of Arthropod-Borne Diseases (2023)

Background: Phlebotomine sand flies are vectors of Leishmania species, the causative agents of leishmaniasis in the world. Present study aimed to evaluate the bioecological aspects of sand flies in different ecotopes in Sari County, north o...

DOAJ Open Access (DOAJ) DOI: 10.18502/jad.v16i2.11806

Inconsistent Patterns of Soil Fauna Biodiversity and Soil Physicochemical Characteristic Along an Urbanization Gradient

Shiqin Yu, Shiqin Yu, Shiqin Yu, Zhifeng Wu et al. • Frontiers in Ecology and Evolution (2022)

Urbanization has induced substantial changes in soil physicochemical characteristic, which plays an important role in regulating soil fauna biodiversity in forests and grasslands. However, less is known about the urbanization effect on soil...

DOAJ Open Access (DOAJ) DOI: 10.3389/fevo.2021.824004

A method for preparing remolded samples of silty clay interbedded with silty sand

SHEN Zhi-fu , XU Qi-er , ZHU Ling-yu , WANG Zhi-hua , GAO Hong-mei • Yantu gongcheng xuebao (2021)

Interbedded soil is a special soil and is often encountered in littoral facies and river floodplain formations. Furthermore, the interbedded soil of cohesive soil and sandy soil is especially unique in its overall mechanical behavior due to...

DOAJ Open Access (DOAJ) DOI: 10.11779/CJGE2021S2023

An Examination of the Multiphase Darcy Model of Fluid Displacement in Porous Media Examen du modèle polyphasique de Darcy de déplacement de fluides en milieu poreux

Wright R. J., Dawe R. A. • Oil & Gas Science and Technology (2006)

The multiphase Darcy model used to represent two-phase immiscible displacement flow within porous media is critically examined, and the principle assumptions and limitations discussed. We identify some of the main problems which require bet...

DOAJ Open Access (DOAJ) DOI: 10.2516/ogst:1980061

Leveraging AI to optimize vaccines supply chain and logistics in Africa: opportunities and challenges

Sulaiman Muhammad Musa, Usman Abubakar Haruna, Lukman Jibril Aliyu, Mubarak Zubairu et al. • Frontiers in Pharmacology (2025)

Examining the current situation of the vaccine supply chain in Africa, the article highlights the importance of AI technologies while outlining the prospects and problems in vaccine supply chain management in Africa. Despite the significanc...

DOAJ Open Access (DOAJ) DOI: 10.3389/fphar.2025.1531141

Implications of climate change on freshwater ecosystems and their biodiversity

Divya Nimma, Okram Ricky Devi, Bibek Laishram, Janjhyam Venkata Naga Ramesh et al. • Desalination and Water Treatment (2025)

Global warming is a phenomenon whereby the planet's exposure to the sun's radiation worsens from the high emission of gasses believed to trap heat within the atmosphere. Carbon dioxide (CO2) is the leading greenhouse gas majorly responsible...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.dwt.2024.100889

Why bisexuality is queer

Laura Corradi • Whatever (2018)

The essay starts with the author’s Positioning, a feminist practice of disclosing her own intellectual and political perspectives – since knowledge is situated, never neutral. In section 1. Coming to terms with bisexuality naming practices,...

DOAJ Open Access (DOAJ) DOI: 10.13131/2611-657X.whatever.v1i1.10