Results 71 to 80 of about 221,946 (289)

Global Diversification Rates of Ferns Across Spatial and Climatic Gradients

Advanced Science, EarlyView.
Diversification rates of fern genera across the phylogeny. Abstract Geographic patterns of diversity in any group of plants are the result of the interplay of environmental conditions and the evolutionary dynamics of the respective plant group. Here, the geographic distribution of current mean diversification rates (MDR) is explored at the genus level ...
Hong Qian, Michael Kessler, Shenhua Qian
wiley   +1 more source

Diversity and Ecological Potentials of Marine Viruses Inhabiting Continental Shelf Seas

Advanced Science, EarlyView.
To the best of the knowledge, this study provides the largest viral genome dataset from a continental shelf sea. It reveals that over half of vOTUs are novel, highlighting the remarkable viral novelty in the eastern continental shelf seas of China (ECSSC).
Xiaoyue Guo, Yantao Liang, Chen Gao, Hao Yu, Meiwen Wang, Hongbing Shao, Yeqing Yang, David Paez‐Espino, Andrew McMinn, Min Wang   +9 more
wiley   +1 more source

The Role of Transposable Elements in Speciation

Genes, 2018
Understanding the phenotypic and molecular mechanisms that contribute to genetic diversity between and within species is fundamental in studying the evolution of species. In particular, identifying the interspecific differences that lead to the reduction
A. Serrato-Capuchina, D. Matute
semanticscholar   +1 more source

Chemically Driven Nano‐Elastic Heterogeneities Control Fragility in Volcanic Melts

Advanced Science, EarlyView.
The study elucidates how nanoscale structural heterogeneity governs the mechanical behavior of volcanic glasses across compositions from basalt to rhyolite. Using a physicochemical framework, correlation length (ξ) and microscopic free volume (Vc) are derived from vibrational and physical properties, revealing systematic trends with silica content that
Michele Cassetta, Daria Szewczyk, Gabriele Giuliani, Serena Dominijanni, Francesco Vetere, Gianluca Iezzi, Francesco Radica, Dmitry Bondar, Fabrizio Di Fiore, Alessio Pontesilli, Levent Karacasulu, Nicola Daldosso, Hideyuki Mizuno, Danilo Di Genova   +13 more
wiley   +1 more source

Comprehensive Understandings of Rare Earth Element (REE) Speciation in Coal Fly Ashes and Implication for REE Extractability.

Environmental Science and Technology, 2019
In recent years, recovery of rare earth elements (REEs) from coal fly ashes (CFAs) has been considered as a promising resource recovery option. Yet, quantitative information on REE speciation in CFAs and its correlation with REE extractability are not ...
Pan Liu, Rixiang Huang, Yuanzhi Tang
semanticscholar   +1 more source

Tailoring Oxide/MAX Phase Nanocomposites via Low‐Temperature Oxidation for Lithium‐Ion Battery Anodes: Peeking Behind the Electrochemical Mechanism via In Situ Investigations

Advanced Science, EarlyView.
Controlled oxidation of Ti3Al0.3Sn0.7C2 produces SnO2/TiO2–MAX nanocomposites with superior electrochemical performance. The SnHigh_Ox700 sample shows optimal stability, capacity (300 mAh g−1), and reversibility (99.2%). Its unique morphology ensures efficient charge transport and stress accommodation. In situ analyses reveal reversible SnO2 conversion/
Irene Ostroman, Nicholas Vallana, Antonio Gentile, Stefano Marchionna, Omar Perego, Chiara Ferrara, Andrew Fitch, Martina Fracchia, Nicolò Pianta, Andrea Giacomo Marrani, Taewon Kim, Changhyun Park, Chanhee Lee, Hyun‐Wook Lee, Lorenzo Stievano, Riccardo Ruffo   +15 more
wiley   +1 more source

Speciation by selection: A framework for understanding ecology's role in speciation

Current Zoology, 2013
Speciation research during the last several decades has confirmed that natural selection frequently drives the generation of new species. But how does this process generally unfold in nature?
R. Brian LANGERHANS, Rüdiger RIESCH
doaj  

Microextraction Techniques Used in the Procedures for Determining Organomercury and Organotin Compounds in Environmental Samples

Molecules, 2014
Due to human activities, the concentrations of organometallic compounds in all parts of the environment have increased in recent decades. The toxicity and some biochemical properties of mercury and tin present in the environment depend on the ...
Małgorzata Rutkowska, Kinga Dubalska, Piotr Konieczka, Jacek Namieśnik   +3 more
doaj   +1 more source

Beyond Reproductive Isolation: Demographic Controls on the Speciation Process

Annual Review of Ecology, Evolution and Systematics, 2019
Studies of speciation typically investigate the evolution of reproductive isolation between populations, but several other processes can serve as key steps limiting the formation of species.
Michael G. Harvey, S. Singhal, D. Rabosky   +2 more
semanticscholar   +1 more source

Dual Disruption of the Immune Cytokine Spätzle Facilitates Fungal Infection of Diverse Insect Hosts

Advanced Science, EarlyView.
The Toll pathway is essential for insect defense against fungal pathogens. This works reports that fungal parasites employ two divergent virulent effectors to target the Toll receptor ligand Spätzle: a metalloprotease degrading it and a hairpin‐like effector hijacking it to block signal transduction. This dual strategy enables the fungus to kill a wide
Shuangxiu Song, Shiqin Li, Yujuan Luo, Dongxiang Wei, Junmei Shang, Hongyun Wu, Gangqi Fang, Chengshu Wang   +7 more
wiley   +1 more source