Michael Thiel
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View article: Characterization of retinal pigment epithelium layer in healthy and diseased retinas with high‐resolution adaptive optics transscleral flood illumination imaging
Characterization of retinal pigment epithelium layer in healthy and diseased retinas with high‐resolution adaptive optics transscleral flood illumination imaging Open
Purpose The retinal pigment epithelium (RPE) is critical in the pathophysiology of retinal diseases, such as age‐related macular degeneration. Adaptive optics transscleral flood illumination (AO‐TFI) offers rapid, detailed morphometric cha…
View article: Small fires, big gap: High-resolution VIIRS data reveal widespread underestimation of emissions in sub-Saharan Africa
Small fires, big gap: High-resolution VIIRS data reveal widespread underestimation of emissions in sub-Saharan Africa Open
International audience
View article: Modelling Woody Vegetation Suitability in Saloum Delta Ramsar Site (West-Africa): Implications for Conservation and Land Restoration
Modelling Woody Vegetation Suitability in Saloum Delta Ramsar Site (West-Africa): Implications for Conservation and Land Restoration Open
Woody vegetation is crucial in maintaining ecological balance, supporting biodiversity, and contributing to carbon storage. However, these ecosystems face increasing threats from deforestation, climate change, and human activities. Despite…
View article: Integrating the landscape scale supports SAR-based detection and assessment of the phenological development at the field level
Integrating the landscape scale supports SAR-based detection and assessment of the phenological development at the field level Open
Climate change and increasing weather and seasonal dynamics challenge agricultural landscapes. To cope with this challenge information on crop performance is key. This study presents a novel framework for bridging landscape-scale vegetatio…
View article: Adaptation and Mitigation Strategies of the Populations of Abuja and Ouagadougou in West Africa to the Various Impacts of Extreme Climate Events in Urban Areas
Adaptation and Mitigation Strategies of the Populations of Abuja and Ouagadougou in West Africa to the Various Impacts of Extreme Climate Events in Urban Areas Open
Urban settings in West Africa are increasingly experiencing extreme weather events, such as heat waves, floods, and windstorms. Climate phenomena exacerbated by global climate change are not unique to this region but reflect a broader tren…
View article: A Spatial Decision Support System for climate-adapted agriculture designed with and for stakeholders in West Africa
A Spatial Decision Support System for climate-adapted agriculture designed with and for stakeholders in West Africa Open
This paper presents a Spatial Decision Support System (SDSS) designed to assist stakeholders in West Africa in analysing critical climate and land use indicators for risk management in agriculture and further sectors being affected by extr…
View article: Patient-reported Outcome Measures for Assessing Spectacle Independence after Implantation of Monofocal or Extended Depth of Focus (EDOF) Intraocular Lenses with Various Degrees of Monovision
Patient-reported Outcome Measures for Assessing Spectacle Independence after Implantation of Monofocal or Extended Depth of Focus (EDOF) Intraocular Lenses with Various Degrees of Monovision Open
Purpose Cataract surgery aiming for emmetropia in one eye and various degrees of myopia in the contralateral eye (monovision) is a popular strategy to improve spectacle independence. The aim of this study was to use patient-reported outcom…
View article: Dynamics of Changes in Spatial Patterns of Built-Up Areas in Two Metropolitan Areas of Grand Lomé and Greater Accra (West Africa)
Dynamics of Changes in Spatial Patterns of Built-Up Areas in Two Metropolitan Areas of Grand Lomé and Greater Accra (West Africa) Open
Urbanization and population growth in West Africa have significantly altered land use and land cover (LULC), raising environmental concerns. This study examines urban land use patterns in the District Autonome du Grand Lomé (DAGL) and Grea…
View article: European Academic Network for Capacity Development in Climate Change Adaptations in Africa
European Academic Network for Capacity Development in Climate Change Adaptations in Africa Open
The NetCDA project takes a long-term approach to strengthening and better networking academic education on climate change adaptation strategies in Africa. A sustainable implementation of this project will be achieved in three steps: (i) In…
View article: Earth observations reveal impacts of climate variability on maize cropping systems in sub-Saharan Africa
Earth observations reveal impacts of climate variability on maize cropping systems in sub-Saharan Africa Open
In Kenya, climate variability and change threaten smallholder, rainfed farms, with crop failures, yield reductions, and pest infestations. Efficient agroecological strategies, such as Push-Pull intercropping, offer documented benefits incl…
View article: Role of The Forest-Savanna Transition Zones in Mitigating Climate Change at Lamto Scientific Reserve, Côte d’Ivoire
Role of The Forest-Savanna Transition Zones in Mitigating Climate Change at Lamto Scientific Reserve, Côte d’Ivoire Open
In the context of global climate change, forests play a crucial role as carbon sinks, contributing to regulating greenhouse gases and stabilising the climate. This study evaluates the role of forest-savanna transition zones in mitigating c…
View article: How do rural industrial sites impact migrant motives and the socio-economic conditions of local and migrant populations?
How do rural industrial sites impact migrant motives and the socio-economic conditions of local and migrant populations? Open
Understanding the impact of rural industrialization on migration motives and the socio-economic well-being of local and migrant populations is critical for developing policies that aim at improving living standards and ensuring inclusive e…
View article: Enhancing burned area monitoring with VIIRS dataset: A case study in Sub-Saharan Africa
Enhancing burned area monitoring with VIIRS dataset: A case study in Sub-Saharan Africa Open
International audience
View article: How Phenology Shapes Crop-Specific Sentinel-1 PolSAR Features and InSAR Coherence across Multiple Years and Orbits
How Phenology Shapes Crop-Specific Sentinel-1 PolSAR Features and InSAR Coherence across Multiple Years and Orbits Open
Spatial information about plant health and productivity are essential when assessing the progress towards Sustainable Development Goals such as life on land and zero hunger. Plant health and productivity are strongly linked to a plant’s ph…
View article: Multiple use of preservative-free single dose unit dexamethasone 0.1% eye drops is safe within 24 hours
Multiple use of preservative-free single dose unit dexamethasone 0.1% eye drops is safe within 24 hours Open
Background Unpreserved single-dose unit (SDU) eye drops are commonly used to avoid benzalkonium chloride-related toxicity. Although intended for single use, many patients report off-label repeated use of SDUs over a prolonged period. We in…
View article: Harmonized NDVI time-series from Landsat and Sentinel-2 reveal phenological patterns of diverse, small-scale cropping systems in East Africa
Harmonized NDVI time-series from Landsat and Sentinel-2 reveal phenological patterns of diverse, small-scale cropping systems in East Africa Open
Capturing the phenological responses of crops in diverse, small-scale agricultural systems is one of the most notable remote sensing research gaps in Eastern Africa. Because of the heterogeneous and complex agricultural environments, remot…
View article: Deep Learning Models Used in the Diagnostic Workup of Keratoconus: A Systematic Review and Exploratory Meta-Analysis
Deep Learning Models Used in the Diagnostic Workup of Keratoconus: A Systematic Review and Exploratory Meta-Analysis Open
Purpose: The prevalence of keratoconus in the general population is reported to be up to 1 of 84. Over the past 2 decades, diagnosis and management evolved rapidly, but keratoconus screening in clinical practice is still challenging and as…
View article: Intensity Analysis for Urban Land Use/Land Cover Dynamics Characterization of Ouagadougou and Bobo-Dioulasso in Burkina Faso
Intensity Analysis for Urban Land Use/Land Cover Dynamics Characterization of Ouagadougou and Bobo-Dioulasso in Burkina Faso Open
Ouagadougou and Bobo-Dioulasso remain the two major urban centers in Burkina Faso with an increasing trend in human footprint. The research aimed at analyzing the Land Use/Land Cover (LULC) dynamics in the two cities between 2003 and 2021 …
View article: Differences in minimal disease knowledge of keratoconus patients: results from an international survey
Differences in minimal disease knowledge of keratoconus patients: results from an international survey Open
Background/aims The objective of this multicentre, multinational, prospective study was to assess the level of basic understanding that individuals with keratoconus possessed about their condition. Methods We recruited 200 active keratocon…
View article: Scientific Evidence from Space—A Review of Spaceborne Remote Sensing Applications at the Science–Policy Interface
Scientific Evidence from Space—A Review of Spaceborne Remote Sensing Applications at the Science–Policy Interface Open
On a daily basis, political decisions are made, often with their full extent of impact being unclear. Not seldom, the decisions and policy measures implemented result in direct or indirect unintended negative impacts, such as on the natura…
View article: Estimation of Aboveground Biomass in Agroforestry Systems over Three Climatic Regions in West Africa Using Sentinel-1, Sentinel-2, ALOS, and GEDI Data
Estimation of Aboveground Biomass in Agroforestry Systems over Three Climatic Regions in West Africa Using Sentinel-1, Sentinel-2, ALOS, and GEDI Data Open
Agroforestry systems (AFS) offer viable solutions for climate change because of the aboveground biomass (AGB) that is maintained by the tree component. Therefore, spatially explicit estimation of their AGB is crucial for reporting emission…
View article: Environmental Contamination of a Biodiversity Hotspot—Action Needed for Nature Conservation in the Niger Delta, Nigeria
Environmental Contamination of a Biodiversity Hotspot—Action Needed for Nature Conservation in the Niger Delta, Nigeria Open
The Niger Delta belongs to the largest swamp and mangrove forests in the world hosting many endemic and endangered species. Therefore, its conservation should be of highest priority. However, the Niger Delta is confronted with overexploita…
View article: The effect of a video tutorial to improve patients’ keratoconus knowledge – a randomized controlled trial and meta-analysis of published reports
The effect of a video tutorial to improve patients’ keratoconus knowledge – a randomized controlled trial and meta-analysis of published reports Open
Objective To investigate whether a video tutorial, highlighting important aspects of keratoconus provided prior to a scheduled follow-up consultation, has a specific effect on patients’ knowledge after the consultation. Methods and Analysi…