Interdecadal Variations in Agricultural Drought Monitoring Using Land Surface Temperature and Vegetation Indices: A Case of the Amahlathi Local Municipality in South Africa

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 8125 - 8125

Published: Sept. 18, 2024

Agricultural droughts in South Africa, particularly the Amahlathi Local Municipality (ALM), significantly impact socioeconomic activities, sustainable livelihoods, and ecosystem services, necessitating urgent attention to improved resilience food security. The study assessed interdecadal drought severity duration Amahlathi’s agricultural potential zone from 1989 2019 using various vegetation indicators. Landsat time series data were used analyse land surface temperature (LST), soil-adjusted index (SAVI), normalized difference (NDVI), standardized precipitation (SPI). utilised GIS-based weighted overlay, multiple linear regression models, Pearson’s correlation analysis assess correlations between LST, NDVI, SAVI, SPI response extent. results reveal a consistent negative LST NDVI ALM, with an increase (R2 = 0.9889) temperature. accuracy dry areas increased 55.8% 2019, despite dense high average of 40.12 °C, impacting water availability, land, local ecosystems. shows ALM increasing since 2019. SAVI indicates slight improvement overall health 0.18 0.25 2009, but decrease 0.21 at 12 24 months that severely impacted cover 2014 notable recovery during wet periods 1993, 2000, 2003, 2006, 2008, 2013, possibly due temporary relief. findings can guide provincial monitoring early warning programs, enhancing resilience, productivity, especially farming communities.

Language: Английский

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Nano-enhanced immunity: A bibliometric analysis of nanoparticles in vaccine adjuvant research

Human Vaccines & Immunotherapeutics, Journal Year: 2024, Volume and Issue: 20(1)

Published: Nov. 14, 2024

This study analyzed the growth, collaboration, citation trends, and emerging topics in nanoparticle-based vaccine adjuvant research (NVAR) from 1977 to 2023, using data Scopus database. The field showed a steady growth rate of 7.53% per year. Leading researchers Jaafari, M.R. Alving, C.R. contributed significantly field, with 24.22% publications 38.92% total citations coming United States. International collaboration was very strong, particularly between US, UK, Germany, China, France. Key include nanoparticles, immunotherapy, COVID-19, vaccines focus on SARS-CoV-2 malaria. Emerging adjuvants, mRNA, neutralizing antibodies. emphasizes importance ongoing interdisciplinary efforts advance NVAR.

Language: Английский

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Spatiotemporal Dynamics of Urban Green Spaces and Climatic Vulnerability of Togolese Cities in the Context of Rapid Urbanisation: The Case of Lome and Kara

Land, Journal Year: 2025, Volume and Issue: 14(3), P. 471 - 471

Published: Feb. 25, 2025

In Togo, the cities of Lomé and Kara are undergoing rapid urbanisation driven by strong population growth expansion urban built-up areas, leading to significant reductions in green spaces (UGSs). UGSs vital for climate regulation human well-being mitigating heat, improving air quality, supporting mental health. This directly replaces vegetated areas with impervious surfaces, diminishing UGS their associated ecosystem services. Consequently, climatic vulnerability has increased, highlighting need sustainable development conservation. study examines spatiotemporal dynamics using Landsat imagery from 1988, 2000, 2012, 2022, applying a supervised image classification approach maximum likelihood algorithm. Post-classification change detection quantified loss. Additionally, models 2060, 2100 were developed Shared Socioeconomic Pathways (SSP 2.45 SSP 5.85) multifactorial modelling approach. The results reveal decline 85.98% 40.78% 93.99% 36.68% between 1988 primarily due urbanisation. Vulnerable zones, currently UGSs, risk disappearance 2060–2100, exacerbating risks. Urgent measures needed, including conservation policies, creation, community awareness promote sustainability.

Language: Английский

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Energy research in East Africa: A bibliometric analysis

Sustainable Environment, Journal Year: 2025, Volume and Issue: 11(1)

Published: March 15, 2025

Language: Английский

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Exploring the evolving frontiers of sleep deprivation research in the post-COVID-19 era

Medicine, Journal Year: 2025, Volume and Issue: 104(11), P. e41806 - e41806

Published: March 14, 2025

Sleep deprivation research (SDR) has undergone substantial transformations in the aftermath of COVID-19 pandemic. This comprehensive study explores SDR’s evolving trends, hotspots, and conceptual structure post-COVID-19 era. Using bibliometric analysis with VOSviewer Bibliometrix software, we examined SDR publications from January 2020 to December 2023. Core sources were identified using Bradford law, a dataset 4578 English-based data-driven studies was retrieved Scopus database. Our revealed remarkable annual growth rate 37.92% 2023, indicating heightened focus this domain. Among prolific authors, Shao emerged as key contributor, while ranked prominently leading publication venue. The United States China have most impactful countries for advancing research. Uncovering cited documents sheds light on various focal points within SDR, including sleep duration, mental health implications, cardiovascular events, impact patterns, dementia, resilience children, patterns among preschoolers. Noteworthy keywords that encompassed “sleep deprivation,” “depression,” “insomnia,” “COVID-19,” “anxiety,” “fatigue,” “obesity.” thematic mapping approach, delineated distinct themes characterized by niche, basic, emerging, declining patterns. Clusters observed areas such “Fatigue,” “Sleep apnea,” “Sleep,” “Migraine,” “Caffeine,” “Recovery.” Furthermore, trending disturbance,” “excessive daytime sleepiness,” “Gamma-Aminobutyric Acid.” These findings provide valuable insights into current landscape illuminating emerging identifying offering directions future critical field.

Language: Английский

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