Results 71 to 80 of about 1,619 (175)

Interval Model of the Efficiency of the Functioning of Information Web Resources for Services on Ecological Expertise

Mathematics, 2020
Mathematical models of the efficiency dynamics of information web resources are considered in this paper. The application of interval discrete models in the form of difference equations is substantiated and the approach to estimation of the model ...
Mykola Dyvak, Oleksandr Papa, Andrii Melnyk, Andriy Pukas, Nataliya Porplytsya, Artur Rot   +5 more
doaj   +1 more source

Assessing forest fragmentation and biodiversity impacts in sub‐Saharan Africa: Methodological challenges and conservation strategies for small‐scale agricultural landscapes

Agrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Tropical forests in sub‐Saharan Africa (SSA) harbor around one‐third of the world's species but are becoming more fragmented due to the expansion of human settlements and small‐scale agricultural (SCA) areas. This study systematically reviewed the approaches and methods used to analyze forest fragmentation and its impact on biodiversity in SSA,
Gillie Cheelo, Hastings Shamaoma, Charles Bwalya Chisanga, Jules Christian Zekeng, Stephen Syampungani   +4 more
wiley   +1 more source

Navigating urban ecology: Conceptual and methodological insights

Ecology, Volume 107, Issue 6, June 2026.
Abstract Since its consolidation as a sub‐discipline of ecology in the late 1990s, urban ecology has grown substantially, enhancing our understanding of how urbanization shapes biodiversity and how biodiversity adapts to urbanization. Inherently interdisciplinary in its scope and application, urban ecology is rooted in multiple theoretical and ...
Ian MacGregor‐Fors, Christine C. Rega‐Brodsky, D. Johan Kotze, J. Scott MacIvor, Amy K. Hahs, Marco Moretti, Nicholas S. G. Williams, Christopher A. Lepczyk, Kirsten Jung, Madhusudan Katti, Sonja Knapp, Frank A. La Sorte, Max R. Piana, Caragh G. Threlfall, Paige Warren, Charles H. Nilon, Myla F. J. Aronson   +16 more
wiley   +1 more source

A hybrid discrete artificial bee colony for the green pickup and delivery problem with time windows

Informatica, 2020
This paper formulates a new optimization pickup and delivery problem with time windows which take into account the CO2 emission. This new NP-hard combinatorial optimization problem is called green pickup and delivery problem with time windows (GPDPTW), the recent developments in the vehicle routing problem and its variants, which extends PDP and PDPTW ...
Djebbar Amel Mounia, Bachir Djebbar
openaire   +2 more sources

Comparative Metaheuristic Optimization of PI Controllers for Electric Vehicle Speed Control

Engineering Reports, Volume 8, Issue 6, June 2026.
This paper presents the design, modeling, and simulation validation of an electric vehicle system, using speed variation as a reference to ensure optimal operation in terms of acceleration and deceleration. First, a conventional PI controller controls the vehicle's speed.
Samira Heroual, Belkacem Belabbas, Mohamed Metwally Mahmoud, Yasser Diab, Tayeb Allaoui, Vojtech Blazek, Daniel Eutyche Mbadjoun Wapet, Ali M. El‐Rifaie, Galal F. Abdelaal   +8 more
wiley   +1 more source

A review of participatory mapping in conservation science and practice

Conservation Science and Practice, Volume 8, Issue 6, June 2026.
There has been a recent increase and diversification in the use of participatory mapping in the field of conservation, however, methodological standards remain both disjointed and confounding. We conducted a comprehensive review of the conservation participatory mapping literature and synthesized geographical, temporal, and topical trends across a ...
Michael B. Kowalski, Christine E. Wilkinson, Christopher C. Wilmers, Natalia Ocampo‐Peñuela   +3 more
wiley   +1 more source

Task Performance and Queen Presence Influence the Brain Transcriptome in a Bumble Bee (Bombus terrestris) With a Flexible Division of Labour System

Molecular Ecology, Volume 35, Issue 11, June 2026.
ABSTRACT Division of labour in reproduction and in task performance are two hallmarks of insect societies. Bumble bees and honey bees are both classified as eusocial, but differ in the social organization of their colonies and in the hormonal regulation of division of labour.
Hagai Yehoshua Shpigler, Brian Herb, Molly Avidan‐King, Sivan Alkalay Oren, Mira Cohen, Jenny Drnevich, Mark Band, Gene E. Robinson, Guy Bloch   +8 more
wiley   +1 more source

Multiple Input Delays Estimation Using an Artificial Bee Colony Algorithm

Abstract and Applied Analysis, 2013
This paper focuses on the time delay estimation of the system described in the form of discrete-time state equation with multiple input delays. To estimate the input delays, a new evolutionary computation called the artificial bee colony (ABC) algorithm ...
Wei-Der Chang
doaj   +1 more source

Ecological change may be a common initiator of evolutionary pollinator shifts

New Phytologist, Volume 250, Issue 6, Page 3572-3583, June 2026.
Summary Although evolutionary pollinator shifts are accepted as major sources of floral and species diversity in angiosperms, the mechanisms triggering pollinator shifts remain largely unexplored. In 1970, Stebbins proposed that ecological change may be a common initiator of evolutionary pollinator shifts, but empirical tests of Stebbins' hypothesis ...
Agnes S. Dellinger
wiley   +1 more source

A Practical and Robust Execution Time-Frame Procedure for the Multi-Mode Resource-Constrained Project Scheduling Problem with Minimal and Maximal Time Lags

Algorithms, 2016
Modeling and optimizing organizational processes, such as the one represented by the Resource-Constrained Project Scheduling Problem (RCPSP), improve outcomes.
Angela Hsiang-Ling Chen, Yun-Chia Liang, Jose David Padilla   +2 more
doaj   +1 more source