Results 31 to 40 of about 3,704,485 (249)

Identification of the Campanian Ignimbrite in the Dead Sea and consequent time-transgressive hydroclimatic shifts in the Eastern Mediterranean

Scientific Reports
Robust chronologies and time equivalent tephra markers are essential to better understand spatial palaeoenvironmental response to past abrupt climatic changes.
Rebecca J. Kearney, Markus J. Schwab, Daniel Redant, Ina Neugebauer, Oona Appelt, Cecile Blanchet, Jan Fietzke, Christina Günter, Daniela J. M. Müller, Rik Tjallingii, Achim Brauer   +10 more
doaj   +1 more source

First record of gynandromorphy in Andrena florivaga and an additional case in Nomada lathburiana from Germany (Hymenoptera, Apoidea) [PDF]

Journal of Hymenoptera Research
Rare developmental anomalies can provide valuable insights into the mechanisms of sex differentiation, particularly when they manifest in clearly defined morphological patterns.
Marcel Kettermann, Juliana Klaren, Christina Rupprecht, Christoph Bleidorn, Thomas Fartmann   +4 more
doaj   +3 more sources

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Spatial variation in landscape evolution of the Xiaojiang Region, SE Tibetan Plateau

Frontiers in Earth Science, 2023
Both tectonism and erosion are presumed to have influenced the landscape evolution of the Xiaojiang Region, SE Tibetan Plateau. However, it remains unclear which of these broad processes has played the dominant role in determining landscape form and ...
Dan Wang, Dan Wang, Youpu Dong, Youpu Dong, Yi Liu, Yi Liu, Jiaxin Duan   +6 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Geomorphological Evidence of Active Faulting in Low Seismicity Regions—Examples From the Valley of Gobi Lakes, Southern Mongolia

Frontiers in Earth Science, 2021
Active intraplate deformation as a far-field effect of the India-Eurasia convergence has led to four Mw∼8 earthquakes in western and southern Mongolia in the past century.
Jorien L. N. van der Wal, V. C. Nottebaum, G. Stauch, S. A. Binnie, O. Batkhishig, F. Lehmkuhl, K. Reicherter   +6 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Environmental DNA sequences from aquatic insects indicate freshwater ecosystem state

Ecological Indicators
Ecosystem state assessments based on indicator taxa are paramount to inform effective conservation measures and address the ongoing biodiversity crisis. Environmental DNA (eDNA) can offer a scalable biomonitoring approach, especially when using analysis ...
Flurin Leugger, Martina Lüthi, Meret Jucker, Sarah Thurnheer, Virginie Marques, Zacharias Kontarakis, Loïc Pellissier   +6 more
doaj   +1 more source

Open-Source Processing and Analysis of Aerial Imagery Acquired with a Low-Cost Unmanned Aerial System to Support Invasive Plant Management

Frontiers in Environmental Science, 2017
Remote sensing by Unmanned Aerial Systems (UAS) is a dynamic evolving technology. UAS are particularly useful in environmental monitoring and management because they have the capability to provide data at high temporal and spatial resolutions.
Jan R. K. Lehmann, Torsten Prinz, Silvia R. Ziller, Jan Thiele, Gustavo Heringer, João A. A. Meira-Neto, Tillmann K. Buttschardt   +6 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source