Results 61 to 70 of about 2,074 (210)

Cell polarisation model : the 1D case [PDF]

, 2013
25 pagesInternational audienceWe study the dynamics of a one-dimensional non-linear and non-local drift-diffusion equation set in the half-line, with the coupling involving the trace value on the boundary. The initial mass M of the density determines the
Nicolas Muller, Thomas Lepoutre, Meunier, Nicolas, Muller, Nicolas, Nicolas Meunier, Lepoutre, Thomas   +5 more
core   +1 more source

Data‐driven emulation of flow‐dependent background‐error variance in variational data assimilation

Quarterly Journal of the Royal Meteorological Society, EarlyView.
A machine‐learning approach is developed to emulate flow‐dependent background‐error variance within a variational data assimilation framework. The method reproduces uncertainty information that would normally require a 50‐member ensemble using only five members, while maintaining comparable observation fit and forecast performance.
Wei Pan, Massimo Bonavita, Marcin Chrust, Elías Hólm   +3 more
wiley   +1 more source

Impulsive Thruster Control for Spacecraft Docking: A Lyapunov Approach

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT In this work, we propose a novel discontinuous impulsive controller for nonlinear systems that admit continuous‐time stabilizing controllers. Specifically, we develop a technique for generating discrete control pulses of short duration based on the Lyapunov candidate function associated with a continuous‐time controller. Our method uses a real‐
Xun Liu, Hashem Ashrafiuon, Sergey G. Nersesov   +2 more
wiley   +1 more source

Climate Crisis, Human Mobility and Security Challenges in the MENA Region: Implications for Sustainable Development and Regional Stability

Sustainable Development, EarlyView.
ABSTRACT This study examines the interplay between climate change, violent conflict and forced migration in the Middle East and North Africa (MENA), focusing on asylum flows to the European Union (EU). By integrating high‐resolution climate, conflict and socioeconomic data spanning 2000 to 2023, we develop a comprehensive empirical framework to ...
Shifa Mathbout, George Boustras, Pierantonios Papazoglou, Javier Martin‐Vide, Joan A. Lopez‐Bustins   +4 more
wiley   +1 more source

Transparency, Sustainable Governance and Digital Accessibility in Municipalities: A Machine Learning Approach

Sustainable Development, EarlyView.
ABSTRACT Achieving the Sustainable Development Goals (SDGs) requires transparent and accountable local governments, yet little is known about the structural drivers of municipal transparency. This study introduces a machine learning approach to predict municipal transparency using the Bidimensional Transparency Index (BTI), which measures both the ...
Ana M. Plata‐Díaz, Elisabeth Zafra‐Gómez, Juan C. Garrido‐Rodríguez, M. Carmen Pérez‐López   +3 more
wiley   +1 more source

Carbon‐Intensive Agriculture: Agricultural Trade Openness, Energy Use, and Environmental Challenges in High‐Emission Countries

Sustainable Development, EarlyView.
ABSTRACT This study examines the socioeconomic determinants of agricultural CO2 emissions in the 10 highest‐emitting agricultural economies from 1992 to 2022. Using the LM bootstrap cointegration method and the method of moments quantile regression (MMQR), the analysis identifies long‐run relationships and heterogeneous effects across the emissions ...
Ugur Korkut Pata, Ali Altiner, Eda Bozkurt, Yilmaz Toktas   +3 more
wiley   +1 more source

From Innovation to Sustainability: Integrating Fintech, Green Trade and Knowledge Systems for Circular Growth in Sub‐Saharan Africa

Sustainable Development, EarlyView.
ABSTRACT The transition toward circular and sustainable growth remains a major challenge in Sub‐Saharan Africa (SSA), where resource constraints, limited recycling capacity, and infrastructure deficits constrain environmental performance. Drawing on circular economy and innovation systems perspectives, this study examines how financial technology ...
Emmanuel Kwaku Manu, Bismark Asante, Maria L. Gorbunova, Isaiah Nketiah   +3 more
wiley   +1 more source

Tourism and Sustainable Development in the Mediterranean: Evidence From Robust Panel CS‐ARDL Analysis

Sustainable Development, EarlyView.
ABSTRACT Despite the Mediterranean region's critical dependence on tourism, the empirical relationship between tourism development and multidimensional sustainable development remains underexplored. Existing studies predominantly rely on unidimensional sustainability proxies, failing to capture the holistic nature of sustainability. This study examines
Emin Ahmet Kaplan, Tufan Sarıtaş, Yasin Büyükkör, Alper Aslan   +3 more
wiley   +1 more source

How Climate Change Shapes Environmental, Social, and Governance (ESG) Performance in the MENA Countries

Sustainable Development, EarlyView.
ABSTRACT Climate change, political stability, and sustainability are three central factors that interact and serve as key drivers of achieving the Sustainable Development Goals (SDGs) in the MENA (Middle East and North Africa) region. Accordingly, this paper aims to fill a vital research gap by examining the impacts of climate change, natural resource ...
Hicham Ayad, Alanoud Al‐Maadid, Mohamed Sami Ben Ali   +2 more
wiley   +1 more source

Bridging Efficiency Gaps in Rice Production: A Primal System Analysis of Technical and Allocative Constraints in Bangladesh

Sustainable Development, EarlyView.
ABSTRACT Declining natural resources, rising production costs, and diminishing returns from input‐intensive practices threaten the sustainability of smallholder rice systems in Bangladesh. Using a primal system approach and survey data from 1869 rice‐producing households, this study evaluates technical and allocative inefficiency across major agro ...
Limon Deb, Di Zeng, Rida Akzar, Md. Abdus Salam   +3 more
wiley   +1 more source