Results 81 to 90 of about 142,936 (307)

Lanthanide Speciation in Potential SANEX and GANEX Actinide/ Lanthanide Separations Using Tetra-N-Donor Extractants [PDF]

open access: yes, 2013
Lanthanide(III) complexes with N-donor extractants, which exhibit the potential for the separation of minor actinides from lanthanides in the management of spent nuclear fuel, have been directly synthesized and characterized in both solution and solid ...
Whittaker, Daniel   +19 more
core   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

open access: yesAdvanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim   +13 more
wiley   +1 more source

The existence of species rests on a metastable equilibrium between inbreeding and outbreeding

open access: yes, 2011
Background: Speciation corresponds to the progressive establishment of reproductive barriers between groups of individuals derived from an ancestral stock.
Etienne Joly
core   +1 more source

Determinations of iron speciation and modelling results of dissolved iron speciation and apparent iron solubility from water samples during METEOR cruise M136

open access: yes, 2021
The file contains measurements and modelling results of iron (Fe) speciation of water samples collected on the Peruvian shelf and slope region. Determinations of iron speciation were analyzed via Adsorptive Cathodic Stripping Voltammetry (Gledhill and ...
Achterberg, Eric Pieter   +3 more
core   +1 more source

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

open access: yesAdvanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

Spatial and temporal trends in total organic carbon (TOC), black carbon (BC), and total nitrogen (TN) and their relationships under different planting patterns in a restored coastal mangrove wetland: case study in Fujian, China

open access: yesChemical Speciation & Bioavailability, 2018
This study aims to determine the sediment changes and the trends in TOC, BC and TN before and after restoration of the mangrove wetland in the Jinjiang Estuary and to determine the effect of the wetland restoration process on the biogeochemical cycle of ...
Peiyong Guo   +4 more
doaj   +1 more source

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

open access: yesAdvanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou   +10 more
wiley   +1 more source

Spatial distribution of total halogenated organic compounds (TX), adsorbable organic halogens (AOX), and heavy metals in wetland soil irrigated with pulp and paper wastewater

open access: yesChemical Speciation & Bioavailability, 2017
Long-term irrigation using wastewater from paper industry may cause seriously problems to the receiving soil. This work surveyed and monitored the soil quality of a wastewater irrigation wetland system in Yancheng City, Jiangsu Province in China in 2014 ...
Liqiang Cui   +8 more
doaj   +1 more source

Ecological explanations for (incomplete) speciation

open access: yes, 2009
Divergent natural selection has been shown to promote speciation in many taxa. However, although divergent selection often initiates the process of speciation, it often fails to complete it.
Seehausen, Ole   +2 more
core   +1 more source

How facilitation may interfere with ecological speciation [PDF]

open access: yes, 2012
Compared to the vast literature linking competitive interactions and speciation, attempts to understand the role of facilitation for evolutionary diversification remain scarce.
Gross, Nicolas   +11 more
core   +1 more source

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