Results 111 to 120 of about 128,214 (287)

Speciation with gene flow: Evidence from a complex of alpine butterflies (Coenonympha, Satyridae)

Ecology and Evolution, 2019
Until complete reproductive isolation is achieved, the extent of differentiation between two diverging lineages is the result of a dynamic equilibrium between genetic isolation and mixing.
Thibaut Capblancq, Jesús Mavárez, Delphine Rioux, Laurence Després   +3 more
doaj   +1 more source

Interfacial Polysulfide Confinement via Spatially Controlled Sulfonated Metal–Organic Polyhedra Coatings in Lithium–Sulfur Batteries

Advanced Science, EarlyView.
Spatially controlled sulfonated metal–organic polyhedra (SMOP) coating on sulfur‐loaded hollow carbon spheres form ultrathin, conformal interfacial barriers that selectively confine soluble polysulfides, stabilize sulfur redox, and suppress shuttle reactions.
Soyeon Ko, WooYeon Moon, Yuwei Zhu, Yuhui An, Yunyuan Lu, Sourayan Bal, Linqin Mu, Kyung Min Choi, Yoon Hwa   +8 more
wiley   +1 more source

Nucleophilic Gallyl Anions Enable Ga─Au Bimetallic Ammonia Activation

Angewandte Chemie, EarlyView.
Unlocking gallyl nucleophiles: Counterion control enables formation of an unsupported gallyl─gold complex. Gold coordination induces a polarity switch at gallium, enabling cooperative activation of NH3 and related N─H/O─H substrates under mild conditions.
Hellen Videa, Keelan M. Byrne, Tobias Krämer, Antonio J. Martínez‐Martínez   +3 more
wiley   +2 more sources

Chromosomal Speciation Revisited: Modes of Diversification in Australian Morabine Grasshoppers (Vandiemenella, viatica Species Group)

Insects, 2011
Chromosomal rearrangements can alter the rate and patterns of gene flow within or between species through a reduction in the fitness of chromosomal hybrids or by reducing recombination rates in rearranged areas of the genome.
Steven J. B. Cooper, Takeshi Kawakami, Roger K. Butlin   +2 more
doaj   +1 more source

Bionic Solar‐Powered Heavy Metal Trap for Eco‐Friendly Sludge Drying and Simultaneous Electricity Generation

Advanced Science, EarlyView.
Herein, we propose a solar‐powered heavy metal trap (SPHT) for sludge disposal. The indoor experiments demonstrated that the sludge water content decreased from 90 % to 31 %, coupled with a decrease in heavy metal content to 6 % at most. Furthermore, the designed SPHT generated an initial potential of 0.10 V, and monitoring this hydrovoltaic potential ...
Yanlin Li, Jinglan Wang, Hailin Gu, Zhen Yu, Fawei Lin, Cunku Dong, Ningning Cao, Miao Yu   +7 more
wiley   +1 more source

Stimuli‐Responsive Silsesquioxane Nanozymes for Organocatalysis in Water and Prodrug Activation in Cells

Angewandte Chemie, EarlyView.
Amino‐bearing silsesquioxanes are water‐stable nanozymes that exhibit aggregation‐ and disaggregation‐dependent catalysis and can be applied to intracellular prodrug activation for cancer therapy. ABSTRACT Synthetic nanozymes have emerged as promising alternatives to natural enzymes for catalytic and therapeutic applications, yet their limited ...
Rabia Zahid, Ariadna Lázaro, Guillermo Moreno‐Alcántar, María Sancho‐Albero, Pierre Picchetti   +4 more
wiley   +2 more sources

Genetic divergence, population differentiation and phylogeography of the cicada Subpsaltria yangi based on molecular and acoustic data: an example of the early stage of speciation?

BMC Evolutionary Biology, 2019
Background Geographical isolation combined with historical climatic fluctuations have been identified as two major factors that contribute to the formation of new species.
Yunxiang Liu, Christopher H. Dietrich, Cong Wei   +2 more
doaj   +1 more source

Chromosomes of the bowhead whale (Balaena mysticetus linnaeus) [PDF]

, 1979
Thesis (M.S.) University of Alaska Fairbanks, 1979The somatic chromosomes of the bowhead whale, Balaena mysticetus, are described for the first time using homogeneous staining and trypsin G-banding.
Jarrell, Gordon Hamilton
core  

Cobalt Single‐Atom Catalysts for Ultrafast Sulfamethoxazole Degradation: Unveiling the Chloride‐Ion‐Enhanced Formation of Co(IV)=O

Advanced Science, EarlyView.
An atomically dispersed Co–N4 single‐atom catalyst rapidly activates peroxymonosulfate to remove the antibiotic sulfamethoxazole from water. Common ions have little impact, but chloride dramatically speeds degradation by promoting a high‐valent Co(IV) = O oxidant via in situ HOCl–catalyst electron transfer.
Anting Ding, Jing Lu, Yafei Fan, Chenyu Zeng, Yuhang Lin, Yufei Shi, Zulin Zhang   +6 more
wiley   +1 more source

Widespread horizontal genomic exchange does not erode species barriers among sympatric ducks

BMC Evolutionary Biology, 2012
Background The study of speciation and maintenance of species barriers is at the core of evolutionary biology. During speciation the genome of one population becomes separated from other populations of the same species, which may lead to genomic ...
Kraus Robert HS, Kerstens Hindrik HD, van Hooft Pim, Megens Hendrik-Jan, Elmberg Johan, Tsvey Arseny, Sartakov Dmitry, Soloviev Sergej A, Crooijmans Richard PMA, Groenen Martien AM, Ydenberg Ronald C, Prins Herbert HT   +11 more
doaj   +1 more source