Results 111 to 120 of about 13,499 (232)

Rooftop Breeding Does Not Consistently Explain Variation in Yolk Testosterone in Herring Gulls

Ecology and Evolution, Volume 16, Issue 9, September 2026.
Rooftop‐ and ground‐breeding represent distinct ecological contexts that may influence maternal hormone allocation in Herring gulls. Yolk testosterone concentrations differed between rooftop‐ and ground‐breeding pairs in one of 2 years but were not consistently associated with breeding context, nest density or proxies of maternal quality, suggesting ...
Jolien Van Malderen, Luc Lens, Frederick Verbruggen, Eric W. M. Stienen, Wendt Müller   +4 more
wiley   +1 more source

Invasive mammals disrupt sea–land nutrient inputs over 169 years on subtropical oceanic islands

Ecosphere, Volume 17, Issue 9, September 2026.
Abstract Invasive mammals have severely impacted oceanic islands, reducing or extirpating seabird populations and driving the collapse of nutrient flows with lasting ecosystem effects. We investigated these dynamics on contrasting subtropical oceanic islands in the South Pacific: Rangitāhua, a large island where goats, cats, and rats caused the ...
M. J. Rayner, M. F. de A. Klemm, W. A. Nelson, S. J. Bury, D. J. Hawke, M. A. Sewell, C. J. West, K. E. Morman, L. A. Walker, K. Neill, J. D. Aguirre, Y. Baba, J. R. Beggs, C. A. J. Duffy, J. Galbraith, C. P. Gaskin, T. Hvid, M. Kirk, L. Liggins, E. I. McGuigan, K. Walton, T. Trnski, E. A. Whitehead, P. J. Bellingham   +23 more
wiley   +1 more source

Rac1 Temporarily Suppresses Fertilization Envelope Formation Immediately After 1-Methyladenine Stimulation

Cells
In starfish oocytes, the hormone 1-methyladenine (1-MA) induces germinal vesicle breakdown (GVBD) through a signaling cascade involving PI3K, SGK, Cdc25, and Cdk1/cyclin via G-proteinβγ subunit.
Sakurako Aida, Takako Matsumoto, Yuna Yamazaki, Nunzia Limatola, Luigia Santella, Kazuyoshi Chiba   +5 more
doaj   +1 more source

Lymphocyte Micronucleus Formation Is Driven by Inflammation‐Induced Oxidative DNA Damage in Oesophageal Cancer Development

International Journal of Cancer, Volume 159, Issue 5, Page 1311-1321, 1 September 2026.
Chromosomal instability is a hallmark of cancer, but minimally invasive ways to detect systemic DNA damage and cancer risk remain limited. Here, using patient blood samples, the authors investigated lymphocyte micronuclei (MN) frequency as a potential marker of DNA damage across the progression from gastroesophageal reflux disease to Barrett's ...
Kathryn Munn, Rachel Lawrence, Hasan Haboubi, Hamsa Naser, Kate Hurlow, Ume‐Kulsoom Shah, Lisa Williams, Sarah Gwynne, Owen Bodger, Jiri Zavadil, Francois Virard, Shareen Doak, Laura E. Thomas, Gareth Jenkins   +13 more
wiley   +1 more source

Rare Ophiuroid-Type Steroid 3β,21-, 3β,22-, and 3α,22-Disulfates from the Slime Sea Star Pteraster marsippus and Their Colony-Inhibiting Effects against Human Breast Cancer Cells

Marine Drugs
Two new steroid 3β,21-disulfates (1, 2) and two new steroid 3β,22- and 3α,22-disulfates (3, 4), along with the previously known monoamine alkaloid tryptamine (5) were found in the ethanolic extract of the Far Eastern slime sea star Pteraster marsippus ...
Alla A. Kicha, Timofey V. Malyarenko, Alexandra S. Kuzmich, Olesya S. Malyarenko, Anatoly I. Kalinovsky, Roman S. Popov, Dmitriy K. Tolkanov, Natalia V. Ivanchina   +7 more
doaj   +1 more source

Harnessing cracks in metal films: Design strategies for stretchable conductors

InfoMat, Volume 8, Issue 9, September 2026.
In stretchable electronics, metal film‐based components function either as strain‐insensitive interconnects/electrodes or as strain‐sensitive sensors, both of which are governed by crack‐induced electromechanical responses, yet these two roles have often been discussed separately in previous reviews.
Ting Zhu, Kai Wu, Gang Liu, Jun Sun
wiley   +1 more source

State of the Reef Report 2004: Crown-of-thorns starfish [PDF]

, 2004
The crown-of-thorns starfish is one of only a few animals that feed on living coral tissue. The starfish is named for the dense covering of long, sharp spines on its upper surface. At low densities the crown-of-thorns starfish is a ‘normal’ part of the
Hoey, J., Chin, A.
core   +1 more source

Bionic Tactile Skins for Robotics: Fundamentals, Advances, and Future Prospects

SmartSys, Volume 2, Issue 3, September 2026.
ABSTRACT Robotic bionic tactile skins (RBTSs), as crucial components of next‐generation robotic systems, have attracted significant attention in recent years. By enabling robots to achieve human‐like tactile perception and interact effectively with their surroundings, RBTSs play an essential role in enhancing robotic intelligence.
Jiajun Wu, Zitong Zhang, Xuhui Zhou, Yu Meng, Jie Ni, Junshan Liu, Faheng Zang, Xiaojun Guo, Zhuoqing Yang   +8 more
wiley   +1 more source

Asterias (Starfish), arm, cross section

, 2020
Object: Microscopic slidesPlatform: PathXLOrganism: Asterias (starfish, zeester)Orientation: Arm, cross sectionStainig: Azan (azaan)Magnification: 40xZ-stacks ...
E.A. (Elly) Langewis (6012872)
core   +1 more source

MorphoNet 2.0: An innovative approach for qualitative assessment and segmentation curation of large-scale 3D time-lapse imaging datasets

eLife
Thanks to recent promising advances in AI, automated segmentation of imaging datasets has made significant strides. However, the evaluation and curation of 3D and 3D+t datasets remain extremely challenging and highly resource-intensive.
Benjamin Gallean, Tao Laurent, Kilian Biasuz, Ange Clement, Noura Faraj, Patrick Lemaire, Emmanuel Faure   +6 more
doaj   +1 more source