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Showing 20 of 1,565 academic articles

Generating Daily High-Resolution Regional XCO<sub>2</sub> by Deep Neural Network and Multi-Source Data

Wenjie Tian, Lili Zhang, Tao Yu, Dong Yao et al. • Atmosphere (2024)

CO2 is one of the primary greenhouse gases impacting global climate change, making it crucial to understand the spatiotemporal variations of CO2. Currently, commonly used satellites serve as the primary means of CO2 observation, but they of...

DOAJ Open Access (DOAJ) DOI: 10.3390/atmos15080985

The Temporal-Based Forest Disturbance Monitoring Analysis: A Case Study of Nature Reserves of Hainan Island of China From 1987 to 2020

Han Xiao, Han Xiao, Xiaoqian Zhang, Xiaoqian Zhang et al. • Frontiers in Environmental Science (2022)

Forest disturbance monitoring can provide scientific data for the decision making and management of nature reserves. LandTrendr algorithm has been applied to identify forest disturbances on a long-time scale through appropriate segmentation...

DOAJ Open Access (DOAJ) DOI: 10.3389/fenvs.2022.891752

Observer-Based Robust Finite-Time Trajectory Tracking Control for a Stratospheric Satellite Subject to External Disturbance and Actuator Saturation

Shurui Huang, Yueneng Yang, Ye Yan, Shifeng Zhang et al. • International Journal of Aerospace Engineering (2022)

The stratospheric satellite is regarded as an ideal stratosphere flight platform and is able to accomplish various missions such as surveillance, earth observation, and remote sensing, which requires a robust and effective trajectory tracki...

DOAJ Open Access (DOAJ) DOI: 10.1155/2022/1601771

Smoking behavior change and the risk of pneumonia hospitalization among smokers with diabetes mellitus

Dong-Woo Han, Wonyoung Jung, Kyu Na Lee, Kyungdo Han et al. • Scientific Reports (2023)

Abstract Smoking patients with diabetes mellitus (DM) are at greater risk of developing pneumonia. How smoking behavior changes affect the risk of pneumonia hospitalization, however, remains unclear. Therefore, we investigated the associati...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-023-40658-9

Beyond airborne spread: a dual-route Wells-Riley extension for estimating norovirus infection risk in Ghanaian pediatric wards

Jennifer Belt Antwi, Nana Kena Frempong • Mathematics in Medical and Life Sciences (2026)

Background: The classic Wells–Riley model (CWRM) is a well-established framework for estimating airborne infection risk in shared indoor environments. This study extends the framework to simultaneously incorporate fecal–oral transmission, a...

DOAJ Open Access (DOAJ) DOI: 10.1080/29937574.2026.2714847

Robustness analysis of a Continuous-Time Markov Jump Process model for herd behaviour under stochastic shocks

Samuel Kipsang Kaptum, Jane Aduda Akinyi, Philip Ngare, Amos Kipkorir Langat • Scientific African (2025)

Herd behaviour in socio-economic systems is characterised by asynchronous, stochastic decision-making that traditional models capture imperfectly. Discrete-time DTMCs impose fixed-tick synchrony and require binning, which distorts event tim...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.sciaf.2025.e03042

Mathematical Modeling of Leptospirosis With Misdiagnosis

Japheth Musingila Mwongela, Caroline Kanyiri, Virginia Kitetu • Journal of Applied Mathematics (2026)

Leptospirosis is a widespread zoonotic bacterial disease that continues to pose a major public health challenge, particularly in developing countries where it causes substantial morbidity, mortality, and economic losses. A key problem in co...

DOAJ Open Access (DOAJ) DOI: 10.1155/jama/5513951

BUGSnet: an R package to facilitate the conduct and reporting of Bayesian network Meta-analyses

Audrey Béliveau, Devon J. Boyne, Justin Slater, Darren Brenner et al. • BMC Medical Research Methodology (2019)

Abstract Background Several reviews have noted shortcomings regarding the quality and reporting of network meta-analyses (NMAs). We suspect that this issue may be partially attributable to limitations in current NMA software which do not re...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12874-019-0829-2

Clustering of Unhealthy Lifestyle and the Risk of Adverse Events in Patients With Atrial Fibrillation

So-Ryoung Lee, Eue-Keun Choi, Eue-Keun Choi, Sang-Hyeon Park et al. • Frontiers in Cardiovascular Medicine (2022)

BackgroundLittle is known regarding the risk of clinical outcomes depending on the clustering of lifestyle behaviors after atrial fibrillation (AF) diagnosis. This study evaluated the association between a cluster of healthy lifestyle behav...

DOAJ Open Access (DOAJ) DOI: 10.3389/fcvm.2022.885016

EARNINGS QUALITY AND ASYMMETRIC COST BEHAVIOR: A STUDY OF INDONESIA CAPITAL MARKET

Riki Martusa, Meythi Meythi, Laurensia Vina Dharmawan • International Journal of Innovative Technologies in Economy (2022)

This study investigates whether earnings quality affects to asymmetric cost behavior, i.e., sticky cost of listed firms of Jakarta Stock Exchange (JKSE). This study analyzes 1032 year-firms observations during 2012-2019 periods. This study ...

DOAJ Open Access (DOAJ) DOI: 10.31435/rsglobal_ijite/30062022/7843

Improvement of the external municipal financial control system in the context of public authority reform

S. M. Mironova, A. I. Mordvintsev, I. A. Eremenko • Правоприменение (2021)

The subject. The implementation of external municipal financial control cannot be called fully competent in Russia. Many practical problems are currently being addressed mainly through the transfer of powers to implement external financial ...

DOAJ Open Access (DOAJ) DOI: 10.52468/2542-1514.2021.5(1).96-107

Estimated pulse wave velocity and progression to advanced cardiovascular–kidney–metabolic syndrome: a population-based longitudinal study with supportive external cross-sectional evidence

Wenjiao Zhang, Wenjiao Zhang, Wenbo Yang, Wenbo Yang et al. • Frontiers in Cardiovascular Medicine (2026)

BackgroundCardiovascular–kidney–metabolic (CKM) syndrome captures the interconnected burden of metabolic risk factors, chronic kidney disease, and cardiovascular disease. Evidence remains limited regarding simple and clinically accessible m...

DOAJ Open Access (DOAJ) DOI: 10.3389/fcvm.2026.1875961

PROCEDURE ENABLING SIMULATION AND IN-DEPTH ANALYSIS OF OPTICAL EFFECTS IN CAMERA-BASED TIME-OF-FLIGHT SENSORS

M. Baumgart, N. Druml, M. Consani • The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (2018)

This paper presents a simulation approach for Time-of-Flight cameras to estimate sensor performance and accuracy, as well as to help understanding experimentally discovered effects. The main scope is the detailed simulation of the optical s...

DOAJ Open Access (DOAJ) DOI: 10.5194/isprs-archives-XLII-2-83-2018

True 2-D Resistivity Imaging from Vertical Electrical Soundings to Support More Sustainable Rural Water Supply Borehole Siting in Malawi

Romain Leborgne, Michael O. Rivett, Gift J. Wanangwa, Philippe Sentenac et al. • Applied Sciences (2021)

To improve borehole siting for rural water supply, an advanced resistivity method was adapted for developing country use and demonstrated in Malawi. The method was designed to be low cost, developing-country accessible, efficient. It allows...

DOAJ Open Access (DOAJ) DOI: 10.3390/app11031162

Compost Quality and Markets Are Pivotal for Sustainability in Circular Food-Nutrient Systems: A Case Study of Sri Lanka

Eric D. Roy, Eric D. Roy, Eric D. Roy, Mohamed Esham et al. • Frontiers in Sustainable Food Systems (2021)

Sustainable management of municipal solid waste (MSW) is a critical issue around the world, especially in South Asia where waste generation is expected to double by 2050. Closing the food-nutrient cycle through composting biodegradable MSW ...

DOAJ Open Access (DOAJ) DOI: 10.3389/fsufs.2021.748391

A robust and uncertainty-aware machine learning framework for PM2.5 prediction in a coastal urban Indian environment: implications for sustainable air quality management

Salvator Lawrence, Srimuruganandam Bhathmanabhan • Sustainable Environment Research (2026)

Abstract Accurate prediction of fine particulate matter (PM2.5) remains challenging because atmospheric processes are nonlinear, nonstationary, and influenced by temporal variability, measurement uncertainty, and episodic pollution events. ...

DOAJ Open Access (DOAJ) DOI: 10.1186/s42834-026-00296-y

The Power of Environmental Observatories for Advancing Multidisciplinary Research, Outreach, and Decision Support: The Case of the Minnesota River Basin

K. B. Gran, C. Dolph, A. Baker, M. Bevis et al. • Water Resources Research (2019)

Abstract Observatory‐scale data collection efforts allow unprecedented opportunities for integrative, multidisciplinary investigations in large, complex watersheds, which can affect management decisions and policy. Through the National Scie...

DOAJ Open Access (DOAJ) DOI: 10.1029/2018WR024211

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