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Articles de revues sur le sujet « Ogu River »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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1

Omoko, Ejiro Newton, Stephen Onum Adikwu, Azuka Ocheli, et al. "Geo-accumulation Index of Heavy Metals in River Ogu Water Sediment in Onne Area, Southern Nigeria." Unidel Journal of Science, Technology and Innovations 1, no. 1 (2024): 68–87. https://doi.org/10.5281/zenodo.15319109.

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<strong>Abstract</strong> This study examined the accumulation of contaminants in Ogu River sediments, primarily caused by illegal bunkering activities occurring along the watercourses and riverbanks. Additionally, the operations of local refinery operators and other significant chemical and petrochemical industries in the area significantly contribute to the contamination of aquatic ecosystems. This research focuses on understanding the extent of the contamination and associated risks. The concentration of heavy metals in river sediments was represented by the geo-accumulation index values co

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Azubuike, Chieme, and Endwell Obinichi-Mandah. "The Imperative Status of Science Reporting on Environmental Sustainability in Rivers State." Asian Journal of Advanced Research and Reports 18, no. 12 (2024): 189–97. http://dx.doi.org/10.9734/ajarr/2024/v18i12817.

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Environmental sustainability and overall growth of Rivers State, a state that, over the years, has been plagued with oil spillage and redundant environmental growth. This study, amongst others, sought to ascertain the place of environmental reporting on environmental sustainability in Rivers State. The study was anchored on the contagion theories. The study adopted a quantitative research method, which was the survey research method using the data instrument of a questionnaire. The population of the study was Rivers State, Nigeria. The researcher purposefully and randomly selected three commun

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Lawal, O., O. M. Ojile, and M. Okon. "Modelling and Mapping Oil Pollution across the Inland and Coastal Waters: A Case of Selected Segment of Gulf of Guinea." International Journal of Environment and Pollution Research 12, no. 2 (2024): 40–57. http://dx.doi.org/10.37745/ijepr.13/vol12n24057.

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Artisanal fisheries in the Niger Delta and Nigeria’s coastal waters support the livelihood of its inhabitants, thus management of water pollution has public health significance for the regions and beyond. Oil Spills and contaminated runoff from the hinterland always find their way to the coast via the extensive network of rivers and creeks across the delta. This is a major cause of marine pollution in the region. With this understanding there is a need to map and model the dynamics of oil pollution across the coastal waters of the Niger Delta, thereby providing evidence and data support for th

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Nwaezeigwe, Nwankwo T. "The language factor in the politics of ethnic identity among the West Niger Igbo of Nigeria." Integrity Journal of Arts and Humanities 4, no. 2 (2023): 22–32. http://dx.doi.org/10.31248/ijah2022.068.

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The West Niger Igbo forms one of the six sub-cultural groups of Igboland. The other five sub-groups include: Northern, Southern, Northeastern, or what Afigbo called Ogu-Ukwu, Southeastern or Cross River, and Riverain. In fact substantial parts of West Niger, Northern, and Southern sub-groups constitute the Riverain sub-group. Although all the six sub-groups have cultural interfaces at their borderlands with neighbouring ethnic groups which often generate multi-cultural identity characteristics, yet in most cases Igbo remains the major spoken language. Under such circumstances there has always

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Edori, E. S., C. Ucheaga, and M. N. Timothy. "Levels of Heavy Metals in Surface Water of Oge-Etche River, Etche, Rivers State, Nigeria." RESEARCH JOURNAL OF PURE SCIENCE AND TECHNOLOGY 6, no. 1 (2023): 53–65. http://dx.doi.org/10.56201/rjpst.v6.no1.2023.pg53.65.

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The levels of heavy metals in surface water of Oge-Etche River, Etche, Rivers State, Nigeria was assessed. Analysis of the heavy metals was performed after due laboratory procedures with a thermo Atomic Elemental Absorption Spectrophotometer (model SE-71906). The average levels of the investigated heavy metals in the surface water of the river within the stations in the months of investigations were in the range as follows; Fe; 1.6585±0.069-3.8758±0.123mg/L, Pb; 1.7164±0.078-2.2913±0.101mg/L, Cu; 1.4271±0.068-3.7419±0.188mg/L, Cr; 4.6070±0.284- 6.2551±0.241mg/L, Cd; 0.0246±0.018-1.5386±0.051mg

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Francis, Chuks Madukasi PhD. "Otutunzu Shrine: The Sacred Temple for Ritual Coronation of Igbo Monarchs and Hegemonic Endeavours in Traditional Religion." International Journal of Social Science And Human Research 04, no. 03 (2021): 435–46. https://doi.org/10.47191/ijsshr/v4-i3-26.

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In every tradition, empire or kingdom there is a traditional mystical force that binds or welds every royal families together be it Europe, America, Asia and Africa. In Igbo tradition, coronation of kings is viewed as a kingly festival especially when it comes to coronations in Eri kingdom. In the coronation of any new king within the communities that make up Eri kingdom, especially Nri without “Ududueze” the covenant pot of clay, the coronation will not take place. The mystery behind this is still unknown. In Igbo tradition, this symbol of kingship act as a spiritual conduit that

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Daniel, Simon, Idoko Ojochenemi, Haruna Sule Abutu, and Balogun Grace Foluke. "Assessment of the Influence of Agricultural Activities on the Quality of Ofu River, Kogi State." International Journal of Research and Scientific Innovation X, no. VIII (2023): 253–65. http://dx.doi.org/10.51244/ijrsi.2023.10820.

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Catchment of aquatic ecosystems are currently used for agriculture due to alluvial deposit and this practice contribute to water quality deterioration. Furthermore, the surging growth in human population and the need for increased food production increase agricultural expansion through application of both organic and inorganic fertilizers to crops growing within and around the urban catchment. This study was aimed at assessing the influence of agricultural activities on the quality of Ofu River, Nigeria. to achieve the above goal, the paper placed more emphasis on identifying the perceived eff

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Akoteyon, I. S., and D. J. Kodja. "Patterns of Bottom Sediment Contamination in Parts of River Ogun Lagos, Nigeria." Environmental Issues Volume 9, No. 1, 2022 (2022): 22–35. https://doi.org/10.5281/zenodo.10213402.

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The study analyzed the patterns of bottom sediment contamination in parts ofRiver Ogun Lagos, Nigeria. Samples were randomly collected from ten locations and wereanalyzed for ten heavy metals using the digestion and atomic absorption spectrophotometertechnique. Data were analyzed using descriptive and environmental indicators. The resultshows that the concentrations of Pb, Cd, As, Cu and Hg exceeded the global background valuesof bottom sediment in the study area. The contamination factors of Pb, As, Cd and Hg indicatevery high contamination. All the locations indicate pollution based on the P

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Engr., Kumolu Olumide Ayodeji. "Spatial and Temporal Variation of Hydrological and Geometrical Parameters Across River Oyan, Ogun State, South Western Nigeria." International Journal of Engineering and Advanced Technology (IJEAT) 14, no. 3 (2025): 1–5. https://doi.org/10.35940/ijeat.B4559.14030225.

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<strong>Abstract:</strong> Channel erosion and sedimentation are major environmental threats to the sustainability and productive capacity of surface water. Sedimentation poses a significant threat to dam functionality, affecting water storage capacity, structural integrity, and downstream ecosystems. River Oyan has records of yearly flooding and Oyan Dam has drastically reduced in reservoir capacity due to the siltation. There was a paucity of information about erosion and sedimentation studies along the river. Objectives: Therefore, this study aimed to analyze the spatial and temporal variat

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Herrmann, Marine, Thai To Duy, and Patrick Marsaleix. "Mechanisms and intraseasonal variability in the South Vietnam Upwelling, South China Sea: the role of circulation, tides, and rivers." Ocean Science 20, no. 4 (2024): 1013–33. http://dx.doi.org/10.5194/os-20-1013-2024.

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Abstract. Summer monsoon southwest wind induces the South Vietnam Upwelling (SVU) over four main areas along the southern and central Vietnamese coast: upwelling offshore of the Mekong shelf (MKU), along the southern and northern coasts (SCU and NCU), and offshore (OFU). Previous studies have highlighted the roles of wind and ocean intrinsic variability (OIV) in intraseasonal to interannual variability in the SVU. The present study complements these results by examining the influence of tides and river discharges and investigates the physical mechanisms involved in MKU functioning. MKU is driv

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Alfa, M. I., D. B. Adie, M. A. Ajibike, and O. J. Mudiare. "Development of rating curve for Ofu River at Oforachi Hydrometric Station." Nigerian Journal of Technological Development 15, no. 1 (2018): 14. http://dx.doi.org/10.4314/njtd.v15i1.3.

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Eyenghe, Eyenghe, and Tari &. Samuel Dagogo. "Application of Growth Pole Strategy to Improve Rural Quality of Life in Ogu/Bolo Local Government Area, Rivers State, Nigeria." International Journal of Research Publication and Reviews 5, no. 7 (2024): 1166–82. http://dx.doi.org/10.55248/gengpi.5.0724.1723.

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ANIECHE, John E., Marvellous COUPLE, Rosemary EZEKIEL, and Oluchukwu G. OKONKWO. "Knowledge of Covid-19 Prevention and Attitude Towards Vaccination among Health Workers in Ogu/Bolo Local Government Area, Rivers State." International Journal of Research and Innovation in Applied Science VIII, no. VI (2023): 77–84. http://dx.doi.org/10.51584/ijrias.2023.8610.

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This is a descriptive study that assessed the knowledge of COVID-19 vaccine and attitude towards vaccination among health workers in Ogu/Bolo Local Government Area, Rivers State. The study comprised of 148 health workers in the LGA. Self-structured questionnaire used for data collection was validated and tested for internal consistency using Crombach’s Alpha with reliability index of 0.82. Data for the study was generated through face to face administration of the instrument and analysed by descriptive and inferential statistics. Study revealed that all the health workers in Ogu/Bolo Local Gov

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Kaunang, James A., Dhemi Harlan, Aries S. Moerwanto, and Radia Zulfikar. "River Morphological Study of Downstream Paneki River in Palu Watershed Following The Earthquake and Liquefaction Disaster at Central Sulawesi." Jurnal Teknik Sipil 30, no. 1 (2023): 9–16. http://dx.doi.org/10.5614/jts.2023.30.1.2.

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Abstract An earthquake that struck Central Sulawesi Province in 2018 triggered liquefaction in several locations such as Jono Oge village where the middle stream of Paneki River flows. Liquefaction caused the Paneki River wash in the densely populated settlement became narrower and shallower due to “flowing” material. In response, the Ministry of Public Works and Housing initiates River Improvement and Sediment Control in Paneki River project. The implementation of this project will affect the river’s behaviour, especially its morphological aspects. Therefore, a study of the discharge ca

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Orji, O. A., and T. Iruene. "Soil Moisture Characteristics of Humid Tropical Soils of the Southern Part of Rivers State Nigeria." Soil Moisture Characteristics of Humid Tropical Soils of the Southern Part of Rivers State Nigeria 8, no. 10 (2023): 9. https://doi.org/10.5281/zenodo.10110044.

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Soil moisture characteristics data are extremely valuable tools for describing and managing water storage and flow transport in soils, as well as informing climate-smart agricultural courses and practices. Saturated hydraulic conductivity (Ks), aggregate size distribution, mean weight diameter (MWD), soil moisture characteristic curve (SMCC) and other indices of soil structure were estimated for soils of the 8 Local Government Areas (Akuku-Toru, Degema, Gokhana, Khana, Ogu-Bolo, Okrika, Oyigbo and Tai) in the South of Rivers State Nigeria. Core samples were taken from across the 8 LGAs in trip

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H.O, Nwankwoala,, Harry, M. T, and Warmate, T. "ASSESSING AQUIFER VULNERABILITY AND CONTAMINANT PLUME AT ARTISANAL REFINING SITES IN PARTS OF OKRIKA AND OGU-BOLO LOCAL GOVERNMENT AREAS, RIVERS STATE, NIGERIA." Water Conservation and Management 4, no. 2 (2020): 68–72. http://dx.doi.org/10.26480/wcm.02.2020.68.72.

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This study aims at the assessment of aquifer vulnerability and contaminants plume where artisan refining of crude is taking place, which is a threat to availability of potable water. The ArcGIS version 10.3, ENVI version 4.7, Surfer 10, SPSS 22 and Microsoft Enterprise were used for the interpretation and the water and soil samples were analyzed in the laboratory using standard methods. A total number of sixteen (16) sampling points were selected using random sampling techniques for the water points and soil samples within Ogu Bolo and Okrika. The Digital Elevation Model was created from the e

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Tang, Yong. "“Feeling for Rocks While Crossing the River”: An Analysis of the Statutory Language of China's First Freedom of Information Law." Journal of Information Policy 4, no. 1 (2014): 342–76. http://dx.doi.org/10.5325/jinfopoli.4.2014.342.

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Abstract What is the outlook for expanded Open Government Information (OGI) rules in the Chinese legal system? Slow broadening through cautious testing, predicts Professor Tang. That country's national freedom of information law in some ways compares favorably to those in other countries, but it also has structural provisions that favor non-disclosure. This article compares China's initial “Academic Draft” of the OGI law with the final version as approved by the State Council. The latter is far more limited, apparently in order to avoid perceived threats to social stability. The author sees a

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Widyatmoko, A., D. Legono, and H. C. Hardiyatmo. "Potential Study of Liquefaction in the Downstream Area of Jono Oge-Paneki River, Central Sulawesi." IOP Conference Series: Earth and Environmental Science 930, no. 1 (2021): 012084. http://dx.doi.org/10.1088/1755-1315/930/1/012084.

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Abstract Liquefaction during an earthquake is likely to occur in the quaternary geological layer of sediment. Based on the geological process, the mainland of Central Sulawesi was initially a sea lifted upward to become land Palu-Koro fault. Therefore, the land is basically of basic alluvium soil formation, sand deposits, and loose rock. The earthquake in Central Sulawesi in September 2018 was the cause of liquefaction, one of which was in the Jono Oge area, where most of the flow entered the Paneki river. This paper analyzed the potential for recurrent liquefaction by considering the soil str

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Swathi Lakshmi, A., S. Saran, S. K. Srivastav, and Y. V. N. Krishna Murthy. "Geospatial Modelling Approach for Interlinking of Rivers: A Case Study of Vamsadhara and Nagavali River Systems in Srikakulam, Andhra Pradesh." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-8 (November 27, 2014): 127–32. http://dx.doi.org/10.5194/isprsarchives-xl-8-127-2014.

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India is prone to several natural disasters such as floods, droughts, cyclones, landslides and earthquakes on account of its geoclimatic conditions. But the most frequent and prominent disasters are floods and droughts. So to reduce the impact of floods and droughts in India, interlinking of rivers is one of the best solutions to transfer the surplus flood waters to deficit/drought prone areas. Geospatial modelling provides a holistic approach to generate probable interlinking routes of rivers based on existing geoinformatics tools and technologies. In the present study, SRTM DEM and AWiFS dat

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Alfa, M. I., M. A. Ajibike, and D. B. Adie. "Assessment of the change in river discharge-carrying capacity using remote sensing geographic information system: a case study of Ofu river, Nigeria." Nigerian Journal of Technology 37, no. 3 (2018): 824. http://dx.doi.org/10.4314/njt.v37i3.36.

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Abalo, Mabafei, Diwediga Badabate, Folega Fousseni, Wala Kpérkouma, and Akpagana Koffi. "Landscape-based analysis of wetlands patterns in the Ogou River basin in Togo (West Africa)." Environmental Challenges 2 (January 2021): 100013. http://dx.doi.org/10.1016/j.envc.2020.100013.

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Herrmann, Marine, Thai To Duy, and Claude Estournel. "Intraseasonal variability of the South Vietnam upwelling, South China Sea: influence of atmospheric forcing and ocean intrinsic variability." Ocean Science 19, no. 2 (2023): 453–67. http://dx.doi.org/10.5194/os-19-453-2023.

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Abstract. The South Vietnam upwelling (SVU) develops off the Vietnamese coast (South China Sea, SCS) during the southwest summer monsoon over four main areas: the northern coastal upwelling (NCU), the southern coastal upwelling (SCU), the offshore upwelling (OFU) and the shelf off the Mekong River mouth (MKU). An ensemble of 10 simulations with perturbed initial conditions were run with the fine-resolution SYMPHONIE model (1 km inshore) to investigate the daily to intraseasonal variability of the SVU and the influence of the ocean intrinsic variability (OIV) during the strong SVU of summer 201

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Amangabara, Gordon. "Assessing Groundwater Vulnerability to the Activities of Artisanal Refining in Bolo and Environs, Ogu/Bolo Local Government Area of Rivers State; Nigeria." British Journal of Environment and Climate Change 2, no. 1 (2012): 28–36. http://dx.doi.org/10.9734/bjecc/2012/1088.

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Alfa, M. I., M. A. Ajibike, D. B. Adie, and O. J. Mudiare. "Hydrologic and morphometric analysis of Ofu River Sub-Basin using remote sensing and Geographic Information System." Nigerian Journal of Technological Development 16, no. 2 (2019): 49. http://dx.doi.org/10.4314/njtd.v16i2.1.

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Alfa, M. I., H. I. Owamah, D. B. Adie, B. U. Ovuarume, and H. B. Yaroson. "Application of GIS and HEC-RAS for flood risk assessment of Ofu River catchment in Nigeria." Journal Of Engineering Research Innovation And Scientific Development 1, no. 2 (2023): 1–18. http://dx.doi.org/10.61448/jerisd/1.2.2023.1.

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While flood inundation mapping and risk assessment have been identified as nonstructural measures for the control of floods, the application of GIS-based techniques has been identified as better alternatives to the traditional methods used over time. GIS tools and HEC-RAS models were utilized for a comprehensive flood risk assessment of the Ofu River Catchment as a case study. A total land area of 265.436 km2 and 92,016 persons are at risk of a 100-year flood return period, while a land area of 265.916 km2 and 1,959,288 persons are at risk of a 200-year flood in addition to roads, built and sc

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Alfa, M. I., H. I. Owamah, D. B. Adie, B. U. Ovuarume, and H. B. Yaroson. "Application of GIS and HEC-RAS for flood risk assessment of Ofu River catchment in Nigeria." Journal Of Engineering Research Innovation And Scientific Development 1, no. 2 (2023): 1–11. http://dx.doi.org/10.61448/jerisd12231.

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Egbom, S. E., F. O. Nduka, S. O. Nzeako, and U. M. Chukwuocha. "Spatiotemporal Mapping of Annual Malaria Incidence in Rivers State, Nigeria." Nigerian Journal of Parasitology 44, no. 1 (2023): 179–90. http://dx.doi.org/10.4314/njpar.v44i1.18.

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Rivers State is the centre of Nigeria's oil industry and has the presence of oil prospectors including expatriates who are at risk of malaria infection. Periodic analysis of epidemiological data will enable malaria control programmers to appraise the interventions carried out over the years and assist in the development of sustainable and adaptive strategies directed from an informed local level. This study, therefore, examined spatiotemporal variations in malaria incidence in the State using Annual Parasite Incidence (API) as an indicator. Monthly reported malaria cases from 2007-2017 at the

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Oladoyin, Anthony Mayowa, Ibiso Esther Pokubo, and Goddy Uwa Osimen. "Artisanal petroleum refining and health security in Rivers State, Nigeria." Heritage and Sustainable Development 6, no. 2 (2024): 589–604. https://doi.org/10.37868/hsd.v6i2.584.

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This study investigated the ramifications of artisanal petroleum refining on public health security within the locales of Degema, Ogu-bolo, and Opobo local government areas. Its primary objective was to investigate the relationship between artisanal petroleum refining and health security in Rivers State. A cross-sectional survey research design was employed. Both primary and secondary data were used in the analysis of data. Primary data were sourced through a structured questionnaire. Secondary data were also drawn from scholarly literature sources, including internet materials and national pu

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Rivera, Ildefonso Rodriguez, David Sommerhalder, Mohammad Sahtout, et al. "Abstract CT109: Livmoniplimab and budigalimab combination therapy in treating patients with metastatic ovarian granulosa cell tumors: Results from dose escalation in a first-in-human study." Cancer Research 84, no. 7_Supplement (2024): CT109. http://dx.doi.org/10.1158/1538-7445.am2024-ct109.

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Abstract Background: Ovarian granulosa cell tumors (OGC) are rare, accounting for 5-7% of all ovarian cancers and fatal when metastatic. There are no approved targeted therapies for metastatic OGC. Several agents with different targets, such as pembrolizumab, nirogacestat, orteronel, and STM 434, are being evaluated but to date have not shown clinical benefit. Most OGC carry a C134W mutation in the FOXL2 gene, which manifests its protumor effects via the transforming growth factor (TGF)-β signaling pathway. Livmoniplimab (livmo) is a monoclonal antibody (mAb) that specifically binds to the TGF

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Guo, Qingchun, Yaonan Zhang, Zhenfang He, and Yufang Min. "Web-Based Data Integration and Interoperability for a Massive Spatial-Temporal Dataset of the Heihe River Basin EScience Framework." Advances in Meteorology 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/982062.

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To solve the messy problem of data types and form a unified data-processing solution, data in the Heihe River Basin were first classified into five types to integrate them and achieve unified management of data and metadata, preventing the loss of metadata, in the data model of eScience framework. Considering many of the challenges that exist in the construction of the online spatial-temporal data integration and interoperability eScience platform, we used the open data interfaces and standards such as the Common DataModel (CDM) interface, common scientific data modelling (i.e., NetCDF, GRIB,

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Колева [Koleva], Красимира [Krasimira]. "The Bulgarian-Romanian language boundary: anthroponymical data." Slavia Meridionalis 15 (September 25, 2015): 253–60. http://dx.doi.org/10.11649/sm.2015.021.

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The Bulgarian-Romanian language boundary: anthroponymical dataThe topic is Balkan anthroponymy. The area is the Lower Danube – the Bulgarian-Romanian language boundary. In this contact zone there is a distribution of family names, formed from urbonyms. They signal a specific regional belonging, and they show the link with the common area: the Danube river. We are referring to family names of the type: Vidinliev, Kalafatov, Beketov, Svishtovliev, Ruschukliev, Kalarashev, Tutrakanov, (meaning ‘from Vidin’, ‘from Calafat’, ‘from Bechet’, ‘from Svishtov’, ‘from Ruse’, ‘from Calarashi’, ‘from Tutra

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Pandey, B. N., O.P. Ambasta, A. K. Jha, and K. Shambhu. "Seasonal variation in physico-chemical and biological properties of river Panar (Bihar)." Environment Conservation Journal 8, no. 3 (2007): 133–53. http://dx.doi.org/10.36953/ecj.2007.080326.

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A base line study was conducted to determine the impact of anthropogenic activities on the physico-chemical and biological factors of the river Panar. The result revealed well defined seasonal variation .On the basis of physico-che mical and biol ogi c al parame ters th e ri ve r appears to be poll u ted. On th e basis of Moyl e’s classification, the river water appeared to be hard type. Likewise on the basis of phosphorous and nitrogen , the investigated water body may be categorized as moderate trophic level . The bulk of phytoplankton was shared by Chlorophyceae (9), Myxophyceae (8), Bacill

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Adebisi, A. A. "The relationships between the fecundities, gonado somatic indices and egg sizes of some fishes of Ogun River, Nigeria." Archiv für Hydrobiologie 111, no. 1 (1987): 151–56. http://dx.doi.org/10.1127/archiv-hydrobiol/111/1987/151.

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Villame-Gayagas, Rovi Gem. "Village-level Processing of Pangi (Pangium edule Reinw.) Seeds by the Obu Manuvu Improves the Edibility and Level of Some Nutritional Factors [RESEARCH NOTE]." Philippine Agricultural Scientist 106, no. 4 (2023): 465–77. http://dx.doi.org/10.62550/ix09222.

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Pangi (Pangium edule Reinw) seed is known to be a poisonous material. However, it becomes safe for consumption after processing. This study determined the effect of village-level processing by the Obu Manuvu community of Marilog District, Davao City, Philippines on the antinutrient and nutritional composition of Pangi seeds. Processing methods involved washing with running water for about 15 s, boiling in water for 30 min, and soaking in flowing water in a nearby river overnight. Results showed that after processing, the levels of antinutrients such as cyanogenic glycosides and oxalates were r

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Villame-Gayagas, Rovi Gem. "Village-level Processing of Pangi (Pangium edule Reinw.) Seeds by the Obu Manuvu Improves the Edibility and Level of Some Nutritional Factors [RESEARCH NOTE]." Philippine Agricultural Scientist 106, no. 4 (2024): 465–77. http://dx.doi.org/10.62550/ix092022.

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Pangi (Pangium edule Reinw) seed is known to be a poisonous material. However, it becomes safe for consumption after processing. This study determined the effect of village-level processing by the Obu Manuvu community of Marilog District, Davao City, Philippines on the antinutrient and nutritional composition of Pangi seeds. Processing methods involved washing with running water for about 15 s, boiling in water for 30 min, and soaking in flowing water in a nearby river overnight. Results showed that after processing, the levels of antinutrients such as cyanogenic glycosides and oxalates were r

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de Oliveira, Danielly Brito, Dalila Costa Silva, and Jussara Moretto Martinelli. "Density of larval and adult forms of the burrowing crustaceansLepidophthalmus siriboia(Callianassidae) andUpogebia vasquezi(Upogebiidae) in an Amazon estuary, northern Brazil." Journal of the Marine Biological Association of the United Kingdom 92, no. 2 (2011): 295–303. http://dx.doi.org/10.1017/s002531541100097x.

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Although thalassinidean shrimps exert considerable influence over the structure of benthic communities no ecological studies have been conducted on the larvae and adults ofLepidophthalmus siriboiaandUpogebia vasqueziin the equatorial region. The aim of the present study was to identify the reproductive period of these species in an Amazonian estuary. Monthly collections were performed in the estuary of the Marapanim River (northern coast of Brazil) over the course of one year (August 2006 to July 2007) and adults were obtained from bare sandy substrate and between boulders in the intertidal zo

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Nwafili, SA, and BU Akpoilih. "Some Aspects of the Biometry of the Silver Catfish, Chrysichthys nigrodigitatus from Freshwater and Brackish water Environment in Nigeria." Greener Journal of Biological Sciences 13, no. 1 (2023): 1–7. https://doi.org/10.5281/zenodo.7736700.

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<strong>The study was carried out to investigate the differences in morphometric traits of <em>Chrysichthys nigrodigitatus</em> inhabiting a purely lacustrine freshwater and lotic brackishwater environments in Nigeria. The specimens were obtained from the New Calabar River (Brackish) and Oguta Lake (Freshwater) during fields trips in during 2018. A total of 80 individuals comprising of 40 from each water body were analysed for 16 morphometric traits. The head length and head width were not significantly different (p>0.05) in the species between the two locations. The ratio (%) of predorsal

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Daniel, Simon, Idoko Ojochenemi, Lawrence Nwaune Ukoje, Idenyi Simon, and Abraham Samuel Ajogwu. "Land Use Change Detection and Evaluation in a Watershed: The Implications for Ofu River Water Quality in Anyigba, Kogi State, Nigeria." Journal of Geography, Environment and Earth Science International 27, no. 11 (2023): 119–37. http://dx.doi.org/10.9734/jgeesi/2023/v27i11729.

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This paper examined visible land use changes in Ofu River watershed. Supervised and unsupervised classification of land use types were adopted. Geographical Information System (GIS) software, ArcGIS was used handling and analyzing geographic information by visualizing land use change characteristics or spatio-temporal variability of land use in the study area. The results shows built-up in 2000, 2010, 2020, and 2030 projection were analyzed to be (18.931km2, 30.891km2, 81.280km2 and 112.455km2) respectively, water body (7.491km2, 7.491km2, 7.450km2 and 7.428km2), wetlands (105.637km2, 81.713km

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Sinitsyna, V. V., G. V. Borisenko, and A. A. Polukhin. "DISTRIBUTION OF BIOGENIC ELEMENTS AT THE WATER-BOTTOM BOUNDARY IN THE PORE AND SUPER BOTTOM WATERS OF THE KARA SEA AND THE LAPTEV SEA." Journal of Oceanological Research 52, no. 1 (2024): 121–41. http://dx.doi.org/10.29006/1564-2291.jor-2024.52(1).6.

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The paper presents data from the 63rd cruise of the R/V “Akademik Mstislav Keldysh” in August–October 2015. The main areas of work included the western part of the Kara Sea, the bays of Novaya Zemlya (Sedova, Oga and Tsivolki), a transect through the Voronin Trench, a transect from the Lena River delta to the continental slope of the Laptev Sea. During the cruise, a chemical analysis of pore and bottom waters was carried out for the content of nitrite, nitrate nitrogen, silicon, phosphates, total alkalinity and pH. The patterns of distribution of silicon and phosphorus concentrations at the wa

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Jing, Miao, Falk Heße, Rohini Kumar, et al. "Improved regional-scale groundwater representation by the coupling of the mesoscale Hydrologic Model (mHM v5.7) to the groundwater model OpenGeoSys (OGS)." Geoscientific Model Development 11, no. 5 (2018): 1989–2007. http://dx.doi.org/10.5194/gmd-11-1989-2018.

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Abstract. Most large-scale hydrologic models fall short in reproducing groundwater head dynamics and simulating transport process due to their oversimplified representation of groundwater flow. In this study, we aim to extend the applicability of the mesoscale Hydrologic Model (mHM v5.7) to subsurface hydrology by coupling it with the porous media simulator OpenGeoSys (OGS). The two models are one-way coupled through model interfaces GIS2FEM and RIV2FEM, by which the grid-based fluxes of groundwater recharge and the river–groundwater exchange generated by mHM are converted to fixed-flux bounda

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Alfa, Meshach Ileanwa, M. A. Ajibike, Donatus B. Adie, and O. J. Mudiare. "Assessment of the effect of land use /land cover changes on total runoff from Ofu River catchment in Nigeria." Journal of Degraded and Mining Lands Management 5, no. 3 (2018): 1161–69. http://dx.doi.org/10.15243/jdmlm.2018.053.1161.

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Hwang, Taekeon, Kangmin Kim, Chul-Sue Hwang, and Chang-Jun Cha. "Geo-visualization of antibiotic resistance based on web map service." Abstracts of the ICA 1 (July 15, 2019): 1. http://dx.doi.org/10.5194/ica-abs-1-133-2019.

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<p><strong>Abstract.</strong> An antibiotic resistance is a serious problem on health and humanity. Our human society needs to understand the threat of antibiotic resistance. To geo-visualize the location, biotic information and spatial pattern of antibiotic resistance matters is an effective way for intuitive findings. We focused on the antibiotic resistance issue of Han-river in South Korea and analyzed their spread, as well as range of influence.</p><p>We developed the geo-database of antibiotic resistance matters and represented spatial information based on WM

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Ozim, Chukwunonso Emmanuel, Oladeinde Stephen Olufemi, Abraham Salamatu Ekpo, Nnaemeka Kosiso Alamaeze, and Michael Udochukwu Mbanaso. "GIS Based Analysis of Niger-Benue River Flood Risk and Vulnerability of Communities in Kogi State, Nigeria." European Journal of Environment and Earth Sciences 2, no. 5 (2021): 47–56. http://dx.doi.org/10.24018/ejgeo.2021.2.5.187.

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Flood remains one of the most common natural disasters. Its rate of occurrence and the associated destructive tendency are on a rising scale across the globe. Flood risk may increase due to human activities. It could also decrease by appropriate flood management and planning. However, this requires upgraded and newly generated reliable and up to date floodplain and flood vulnerability maps. Hence, this study analysed the Niger-Benue river flood risk and vulnerability of 256 communities in Kogi State. The aim is to generate reliable up to date flood vulnerability maps that categorises the commu

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Siddeswara Mayura Guru and Chris Peters. "Capture and Management of Hydrometeorological Phenomena Using Sensor Web Concepts and Scientific Workflow." Electronic Journal of Structural Engineering, no. 01 (June 1, 2010): 78–89. http://dx.doi.org/10.56748/ejse.13401.

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Deployment of a large number of sensors across the world has provided several opportunities and challenges. One of the opportunities is the ability to conduct macro-scale experiments using heterogeneous data with wider temporal and spatial variability. This has potential to drastically increase the scientific outcomes and discover new knowledge about our environment. Challenges include dealing with heterogeneity of data for distribution in a seamless environment and management of tasks and processes that manipulate disparate data to discover new knowledge. In this paper, we have adopted Open G

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Ideriah, T.J.K., G.A. Cookey, and U.A. Isong. "Concentrations of Physicochemical Properties and Polycyclic aromatic hydrocarbons in Soil at Akala-olu Ahoada West Rivers State Nigeria." Chemistry Research Journal 2, no. 5 (2017): 242–56. https://doi.org/10.5281/zenodo.13951616.

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The levels of Polycyclic Aromatic Hydrocarbons, Physicochemical Properties and Heavy Metals in Akala-Olu, a crude oil producing community in Rivers State were assessed using standard methods recommended by APHA, Loganathan and EGASPIN for physiochemical parameters, Chromatograph (HP5890 Series II) for PAHs and Atomic Absorption Spectrophotometer for heavy metals. The results showed ranges of pH 6.20 - 6.78, total organic carbon 0.633% - 1.05% organic matter varied 2.14% - 2.88%,  Electrical conductivity 274µS/cm - 463 µS/cm, total Nitrogen 0.053% at - 0.977%, Available phospho

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Chen, Bojie, Qianran Zhang, Na Yang, et al. "Deep Learning Extraction of Tidal Creeks in the Yellow River Delta Using GF-2 Imagery." Remote Sensing 17, no. 4 (2025): 676. https://doi.org/10.3390/rs17040676.

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Tidal creeks are vital geomorphological features of tidal flats, and their spatial and temporal variations contribute significantly to the preservation of ecological diversity and the spatial evolution of coastal wetlands. Traditional methods, such as manual annotation and machine learning, remain common for tidal creek extraction, but they are slow and inefficient. With increasing data volumes, accurately analyzing tidal creeks over large spatial and temporal scales has become a significant challenge. This study proposes a residual U-Net model that utilizes full-dimensional dynamic convolutio

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Alfa, M. I., M. A. Ajibike, and R. E. Daffi. "Application of Analytic Hierarchy Process and Geographic Information System Techniques in Flood Risk Assessment: A Case of Ofu River Catchment in Nigeria." Journal of Degraded and Mining Lands Management 5, no. 4 (2018): 1363–72. http://dx.doi.org/10.15243/jdmlm.2018.054.1363.

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M. O., Ekong,, Agbiji, N. N., and Freedman, B. R. "Comparative Evaluation of Three Screening Methods (Conventional, Molecular and Immunological) in the Diagnosis of Overt and Latent TB Infection in Mixed Population in Cross River State, Nigeria." Asian Journal of Research in Infectious Diseases 15, no. 9 (2024): 20–28. http://dx.doi.org/10.9734/ajrid/2024/v15i9371.

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Challenges in TB diagnostic methods is the major global set back in the fight against TB infection, and the reason for increase in TB new cases baseline to 7.5 million in 2022. Investigating the efficiency and the sensitivity of combinational (Tuberculin Skin Test (TST), Acid Fast Bacilli (AFB), and GeneXpert (GXPT)) TB screening methods in the detection of overt, latent and HIV co-infection in mix population was the major focus of this study. Sampling areas were; Akamkpa (AKP), Calabar Municipal (CCM) and Ogoja all in Cross River State. Three hundred and ninety (390) individuals were enrolled

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Krinko, Evgeny, Alexander Skorik, and Alla Shadrina. "The Don and Kuban Regions During Famine: The Authorities, the Cossacks, and the Church in 1921–1922 and 1932–1933." Nationalities Papers 48, no. 3 (2020): 569–84. http://dx.doi.org/10.1017/nps.2019.120.

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AbstractThis article studies the famine of 1921–1922 and 1932–1933 in the Southern Russian regions. Famine as a socio-historical phenomenon is considered in the context of the relationship of state power, the Cossacks, and the Church. The authors reveal the general and special features of the famine emergence and analyze the differences in the state policies of 1921–1922 and 1932–1933. Considerable attention is paid to the survival strategies of the Don, Kuban and Terek populations. Slaughtering and eating draft animals, transfer from the state places of work to the private campaigns and coope

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Higuchi, Hiroyoshi, and Hideaki Karaki. "Special Issue on Extinction of Organisms." Journal of Disaster Research 3, no. 3 (2008): 165. http://dx.doi.org/10.20965/jdr.2008.p0165.

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Plants and animals are declining or becoming extinct in many parts of the world. They include both well-known species such as the giant panda (Ailuropoda melanoleuca) and the crested ibis (Nipponia nippon) and once common land snails, fireflies and small migratory birds. Factors leading to population decline or extinction include habitat destruction, chemical pollution, alien species, poaching, infectious disease, and global warming. In addition to their individual adverse impacts, these factors often overlap or interconnect in time and space, compounding their effects. In limited areas isolat

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