Results 91 to 100 of about 204,044 (338)

Perception, history, and science: coherence or disparity in the timing of the Little Ice Age maximum in southeast Iceland? [PDF]

, 2005
In Iceland, studies that integrate local perceptions about the landscape with scientific evidence of change have been few. This article presents a case study from southeast Iceland that has two main objectives.
Dugmore, Andrew J., Mckinzey, Krista M., Ólafsdóttir, Rannveig   +2 more
core   +1 more source

Chloroplast Stress Signals Orchestrate Epidermis‐Specific Remodeling of Mitochondria and ER Under High Light

Advanced Science, EarlyView.
High light exposure triggers an epidermis‐specific remodeling of mitochondria and ER in Arabidopsis, driven by chloroplast‐derived signals. Live‐cell imaging shows that HL rapidly suppresses mitochondrial motility, followed by fusion‐driven elongation and ER cisternal expansion.
Evan R. Angelos, Hee‐Seung Choi, Jingzhe Guo, Andrea A. Zanini, Tessa M. Burch‐Smith, Emily Snyder, Matthew Part, Wilhelmina van de Ven, Manhoi Hur, Gerd Ulrich Balcke, Alain Tissier, Quanqing Zhang, Katayoon Dehesh   +12 more
wiley   +1 more source

When Do Single‐Species Occupancy Models Outperform Multispecies Models?

Ecology and Evolution
Occupancy models have become increasingly popular for species monitoring and assessment, in part, because detection/non‐detection data are readily obtained using a variety of methods.
Gavin G. Cotterill, Douglas A. Keinath, Tabitha A. Graves   +2 more
doaj   +1 more source

Seismic Imaging of the Arctic Subsea Permafrost Using a Least-Squares Reverse Time Migration Method

Remote Sensing
High-resolution seismic imaging allows for the better interpretation of subsurface geological structures. In this study, we employ least-squares reverse time migration (LSRTM) as a seismic imaging method to delineate the subsurface geological structures ...
Sumin Kim, Seung-Goo Kang, Yeonjin Choi, Jong-Kuk Hong, Joonyoung Kwak   +4 more
doaj   +1 more source

'Calving laws', 'sliding laws' and the stability of tidewater glaciers [PDF]

, 2007
A new calving criterion is introduced, which predicts calving where the depth of surface crevasses equals ice height above sea level. Crevasse depth is calculated from strain rates, and terminus position and calving rate are therefore functions of ice ...
Brown, Douglas I. Benn, Nicholas R.J. Hulton, Raymond, Ruth H. Mottram, Van der Veen   +5 more
core   +1 more source

Ultrasound Controlled‐Release Hydrogel Promotes Diabetic Wound Healing via Neuroimmune Modulation and Synergistic ROS Scavenging

Advanced Science, EarlyView.
This study presents an ultrasound‐responsive hydrogel (MCF@CA) that co‐delivers a neuropeptide (CGRP) and a ROS‐scavenging manganese porphyrin to diabetic wounds. The system restores neuro‐immune communication, reprograms macrophages toward an anti‐inflammatory phenotype, and clears excess ROS, thereby accelerating wound closure and promoting mature ...
Mofan Li, Mengxin Wang, Haonan Wang, Yang Sun, Yongyue Zhang, Shuyu Xu, Tianjiao Zhang, Shiti Shama, Xiaolong Liang, Shumin Wang   +9 more
wiley   +1 more source

Stress‐Induced Melting Controlled Failure Mechanisms of Methane Hydrate

Advanced Science, EarlyView.
We study methane hydrate via nanoindentation and nuclear magnetic resonance (NMR), finding its regional melting and mechanical properties, challenging existing views on hydrogen‐bonded crystals. Abstract Methane hydrate, a kind of nonstoichiometric crystalline, attracted worldwide attentions as a promising substitute energy. Its Dissociation is thought
Yanlong Li, Yuan Zhou, Zhengcai Zhang, Minhui Qi, Yajuan Zhang, Yujing Jiang, Yunkai Ji, Qingguo Meng, Yongfu Sun, Nengyou Wu   +9 more
wiley   +1 more source

Treeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes

Nature Communications
Climate change induced shifts in treeline position, both towards higher altitudes and latitudes induce changes in soil organic matter. Eventually, soil organic matter is transported to alpine and subarctic lakes with yet unknown consequences for ...
Núria Catalán, Carina Rofner, Charles Verpoorter, María Teresa Pérez, Thorsten Dittmar, Lars Tranvik, Ruben Sommaruga, Hannes Peter   +7 more
doaj   +1 more source

Lipid Biomarkers Quantify Holocene Summer Temperature and Ice Cap Sensitivity in Icelandic Lakes

Geophysical Research Letters, 2020
Although recent research has made significant advances in characterizing Iceland's Holocene environmental history, the region still lacks reliable and continuous records of corresponding paleotemperature.
David J. Harning, Lorelei Curtin, Áslaug Geirsdóttir, William J. D'Andrea, Gifford H. Miller, Julio Sepúlveda   +5 more
doaj   +1 more source

Geomorphology of the Durmitor Mountains and surrounding plateau Jezerska Površ (Montenegro) [PDF]

, 2014
The geomorphological map of the northeastern Durmitor Mountains and the plateau Jezerska Povrs. (1: 10,000, 47 km(2), Montenegro, Dinaric Alps) was prepared from an intensive fieldwork campaign and remote sensing analysis, and was compiled within a GIS ...
Annys, Klaas, Borotac, Dragan, Frankl, Amaury, Nyssen, Jan, Spalević, Velibor, Čurović, Milic   +5 more
core   +3 more sources