Results 121 to 130 of about 7,231,771 (330)

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

open access: yesAdvanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo   +10 more
wiley   +1 more source

Ecology and conservation of bryophytes and lichens on Fagus sylvatica [PDF]

open access: yes, 2009
Environmental factors related to the occurrence of epiphytic bryophytes and lichens were examined in beech (Fagus sylvatica) forests in the Province of Halland, Sweden.
Fritz, Örjan
core  

AUGIST: inferring species trees while accommodating gene tree uncertainty [PDF]

open access: yesBioinformatics, 2008
Abstract Summary: AUGIST (accomodating uncertainty in genealogies while inferring species tress) is a new software package for inferring species trees while accommodating uncertainty in gene genealogies. It is written for the Mesquite software system and provides sampling procedures to incorporate uncertainty in gene tree reconstruction ...
openaire   +2 more sources

Prenucleation Species Dictate Foreign Ion Incorporation in the Biomineral Precursor Amorphous Calcium Carbonate

open access: yesAdvanced Functional Materials, EarlyView.
ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao   +9 more
wiley   +1 more source

Trees within Trees: Genes and Species, Molecules and Morphology [PDF]

open access: yesSystematic Biology, 1997
The construction and interpretation of gene trees is fundamental in molecular systematics. If the gene is defined in a historical (coalescent) sense, there can be multiple gene trees within the single contiguous set of nucleotides, and attempts to construct a single tree for such a sequence must deal with homoplasy created by conflict among divergent ...
openaire   +3 more sources

Electrocatalytic Reduction of CO2 to Ethylene: Catalyst Design and Synchrotron‐Based Characterizations

open access: yesAdvanced Functional Materials, EarlyView.
This review evaluates strategies for electrochemical CO2 reduction to ethylene, focusing on copper‐based catalyst design and microenvironment modulation to achieve industrial‐grade performance. By leveraging operando synchrotron‐based characterizations, we provide a multiscale understanding of dynamic structural transformations and key reaction ...
Meng Zhang, Zuolong Chen, Yimin A. Wu
wiley   +1 more source

Diversify first! Fatten the tails of phenotypic diversity to enhance adaptive capacity in the Anthropocene

open access: yesGlobal Ecology and Conservation
The current pace of environmental change exceeds what most organisms have experienced over the past few million years, with more extreme shifts and events anticipated in the Anthropocene.
Charles H. Cannon, Chai-Shian Kua
doaj   +1 more source

Rarity of monodominance in hyperdiverse Amazonian forests. [PDF]

open access: yes, 2019
Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence
Alonso, Alfonso   +99 more
core  

Efficient Charge Transport in Zero‐Dimensional Perovskite for Ultrahigh‐Sensitivity X‐Ray Detection

open access: yesAdvanced Functional Materials, EarlyView.
A novel mono‐octahedral 0D Bi‐based Dpy3Bi2I12 perovskite strengthens the internal hydrogen bonds and forms a quasi‐2D lattice, exhibits exceptional charge transport and mobility, achieving high X‐ray sensitivity and ultralow‐dose imaging, and setting a new benchmark for 0D detector performance.
Xin Song   +16 more
wiley   +1 more source

An analytical comparison of coalescent-based multilocus methods: The three-taxon case [PDF]

open access: yes, 2012
Incomplete lineage sorting (ILS) is a common source of gene tree incongruence in multilocus analyses. A large number of methods have been developed to infer species trees in the presence of ILS.
Roch, Sebastien
core  

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