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Effects of Bush Fires on Biodiversity in West Africa Sahel: A Review

Research in Ecology 2023年第2期5卷 40-50页

作者： sani ousmane aboul-hadi Nouhou Mossi Omoul-kaïrou Moussa Soulé West African Center for Sustainable Rural Transformation(WAC-SRT) Faculty of Sciences and TechniquesAbdou Moumouni University of Niamey237/10896Niger Department of Biology Faculty of Sciences and Techniques(FST)University Dan Dicko Dankoulodo of Maradi(UDDM)Maradi465Niger

Bush fire is one of the drivers of biodiversity loss ***,the impact of bush fires on biodiversity in the West Africa Sahel is not well ***,this study reviewed the effects of bush fires on biodiversity,the typology of the bush fire drivers and bush fires solutions in the West Africa Sahel via a systematic *** authors used many research engines such as Google Scholar and Mendeley from 2010 to 2022 with some keywords in French and *** comes from the analysis of the data that Mali is the most country affected by bush fires with an average of 35,000,000 ha *** Burkina Faso,bush fires burned more than 2 million hectares each *** analysis showed also a loss of 1,675,157 ha in Niger and 56,568.10 ha in *** study recommends that climate actions should target bush fires prevention and fighting as climate response in order to promote sustainable biodiversity management in the West Africa *** study recommends also that West Africa Sahel countries develop bushfire community education programs for fire prevention.

关键词： Bushfires Biodiversity Sahel Firebreaks West Africa

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Epithelial Layer Estimation Using Curvatures and Textural Features for Dysplastic Tissue Detection

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Computers, Materials & Continua 2021年第4期67卷 761-777页

作者： Afzan Adam Abdul hadi Abd Rahman Nor Samsiah sani Zaid Abdi Alkareem Alyessari Nur Jumaadzan Zaleha Mamat Basela Hasan Faculty of Information Science and Technology Center for Artificial Intelligence TechnologyUniversiti Kebangsaan MalaysiaBangiSelangor43300Malaysia Faculty of Science and Technology School of Mathematical SciencesUniversiti Kebangsaan MalaysiaBangiSelangor43300Malaysia Department of Information Technology and Computing Faculty of Computer StudiesArab Open UniversityAmmanJordan

Boundary effect in digital pathology is a phenomenon where the tissue shapes of biopsy samples get distorted during the sampling *** morphological pattern of an epithelial layer is greatly ***,the shape deformation model can normalise the distortions,but it needs a 2D *** theory,on the other hand,is not yet tested on digital pathology ***,this work proposed a curvature detection to reduce the boundary effects and estimates the epithelial *** boundary effect on the tissue surfaces is normalised using the frequency of a curve deviates from being a straight *** epithelial layer’s depth is estimated from the tissue edges and the connected nucleolus ***,the textural and spatial features along the estimated layer are used for dysplastic tissue *** proposed method achieved better performance compared to the whole tissue regions in terms of detecting dysplastic *** result shows a leap of kappa points from fair to a substantial agreement with the expert’s ground truth *** improved results demonstrate that curvatures have been effective in reducing the boundary effects on the epithelial layer of ***,quantifying and classifying the morphological patterns for dysplasia can be *** textural and spatial features on the detected epithelial layer can capture the changes in tissue.

关键词： Digital pathology grading dysplasia tissue boundary effect

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