Results 31 to 40 of about 218 (118)

Siderite Concretions in Svalbard Lake Sediments Capture 7,000 Years of Extreme Arctic Cold Season Climate Change

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract The Arctic warms faster than anywhere else on Earth, and paleoclimate data are key to placing this amplified response in a long‐term context. But most past temperature proxies record growing season conditions, when their biological signal carriers are produced.
Willem G. M. van der Bilt, Barnabás Csiszár, Marie Bulínová, Leif‐Erik R. Pedersen, Alexandra Rouillard, Ingunn H. Thorseth, Torgeir O. Røthe, Mateusz C. Strzelecki, Anders Schomacker   +8 more
wiley   +1 more source

Spatial Jensen–Shannon Divergence: A Local, Multiscalar Measure of Multigroup Compositional Dissimilarity

Population, Space and Place, Volume 32, Issue 4, May 2026.
ABSTRACT This paper develops a spatial formulation of the Jensen–Shannon divergence to measure multigroup compositional dissimilarity between each municipality and its surrounding context. Building on information theory, the index compares local group distributions with neighbourhood‐lagged compositions defined through two distance‐based systems: a ...
Massimo Mucciardi
wiley   +1 more source

A New Bound for the Jensen Gap With Applications in Information Theory

IEEE Access, 2020
In this manuscript, we adopt a novel approach to present a new bound for the Jensen gap for functions whose double derivatives in absolute function, are convex.
Muhammad Adil Khan, Shahid Khan, Yuming Chu   +2 more
doaj   +1 more source

Long‐Range Transport Pathways of Intense Wildfire Plumes in the Northern Hemisphere Observed by the IASI/METOP Satellite Mission

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.
Abstract Wildfires emit significant greenhouse gases and pollutants. Extreme fires disperse smoke plumes over long distances, necessitating a deeper understanding of their source regions and variability. This study introduces a plume back‐trajectory algorithm using carbon monoxide (CO) and peroxyacetyl nitrate satellite observations from the Infrared ...
Antoine Ehret, Solène Turquety, Anderson Da Silva, Maya George, Juliette Hadji‐Lazaro, Bruno Franco, Lieven Clarisse, Pierre‐François Coheur, Cathy Clerbaux   +8 more
wiley   +1 more source

Estimations of divergence measures for majorization inequalities via Peano’s representation of Hermite’s polynomial [PDF]

Arab Journal of Mathematical Sciences
PurposeIn this paper applications to information theory are presented. Generalized majorization theorem is presented in term of different entropies and divergences. So that obtained results are generalized and comprehensive.Design/methodology/approachThe
Awais Rasheed, Khuram Ali Khan, Josip Pečarić, Ðilda Pečarić   +3 more
doaj   +1 more source

Regularization via f‐Divergence: An Application to Multi‐Oxide Spectroscopic Analysis

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract In this paper, we explore the application of convolutional neural networks (CNNs) for predicting the chemical composition of complex geologic samples in a simulated Martian atmospheric environment. Specifically, we aim to characterize oxide weight percentages (wt.%) of rock samples analyzed by remote Laser‐Induced Breakdown Spectroscopy (LIBS),
Weizhi Li, Natalie Klein, Brendan Gifford, Elizabeth Sklute, Carey Legett, Samuel M. Clegg   +5 more
wiley   +1 more source

Evolution of Senescence by Damage Accumulation That Accelerates With Age Throughout an Organism's Lifespan

Ecology and Evolution, Volume 16, Issue 3, March 2026.
Senescence evolution is usually explained by reduced selection on late acting genes. Here we develop a new model for senescence evolution that complements the classic theory by focusing on genes that affect mortality throughout lifespan. Our work sheds light on the dynamics of senescence evolution and helps to reconcile phenomena that presented ...
Darar Bega, Lilach Hadany
wiley   +1 more source

Making geography move: The Royal Geographical Society and the exchange of periodical knowledge, 1830–1900

Area, Volume 58, Issue 1, March 2026.
Short Abstract This paper examines how the Royal Geographical Society's (RGS's) Library and Map Committee disciplined the exchange of the first English‐language geographical journal in the nineteenth century. The periodical's archive reveals the institutional mechanisms that shaped the journal's networks of gifting and exchange but also the deliberate ...
Benjamin Newman
wiley   +1 more source

Generalized Jensen and Jensen–Mercer inequalities for strongly convex functions with applications

Journal of Inequalities and Applications
Strongly convex functions as a subclass of convex functions, still equipped with stronger properties, are employed through several generalizations and improvements of the Jensen inequality and the Jensen–Mercer inequality.
Slavica Ivelić Bradanović, Neda Lovričević   +1 more
doaj   +1 more source

Reconsidering climatic predictors for high‐resolution niche models of alpine plants

Oikos, Volume 2026, Issue 2, February 2026.
The increasingly acknowledged and consequently also better understood microclimatic variability in terrestrial ecosystems has motivated a call for finer spatial resolution in species distribution modelling, especially in the case of sedentary low‐stature organisms such as plants.
Kryštof Chytrý, Norbert Helm, Johannes Hausharter, Karl Hülber, Dietmar Moser, Johannes Wessely, Pieter De Frenne, Andreas Kollert, Jonas J. Lembrechts, Jonathan Lenoir, Andreas Mayr, Harald Pauli, Martin Rutzinger, Patrick Saccone, Manuela Winkler, Stefan Dullinger   +15 more
wiley   +1 more source