Results 61 to 70 of about 519,778 (295)

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou   +6 more
wiley   +1 more source

Guanosine‐Quadruplex Hydrogels as Dynamic, Mechanically Tunable and Ion Conductive 3D Scaffolds for Cell Culture Applications

open access: yesAdvanced Functional Materials, EarlyView.
Versatile guanosine‐quadruplex (GQ) hydrogels are developed as dynamic biomatrices for cell culture. These scaffolds are fabricated under mild aqueous conditions, present improved stability, tunable mechanical properties within physiological ranges; fibrillar, porous microstructure, ion conductivity, and cytocompatibility.
Neha Thakur   +10 more
wiley   +1 more source

Niche overlap in sympatric populations of fox and gray squirrels

open access: yes, 1998
Resource overlap between fox squirrels (Sciurus niger) and gray squirrels (S. carolinensis) has been reported, but quantitative measures of niche overlap in sympatric populations are unavailable.
Guynn, D., Edwards, J., Heckel, D.
core   +1 more source

An introduction to niche construction theory [PDF]

open access: yes, 2016
Niche construction refers to the modification of selective environments by organisms. Theoretical and empirical studies of niche construction are increasing in importance as foci in evolutionary ecology.
Matthews, Blake   +5 more
core   +1 more source

Wetland selection, niche breadth and overlap in 10 duck species wintering in northern Campania (Italy)

open access: yesRivista Italiana di Ornitologia - Research in Ornithology, 2018
Analysis of the selection index, the niche breadth and the niche overlap of 10 species of wintering ducks in 11 wetland areas of the Campania region between January 2003 and 2015 revealed that the distribution of the species in the examined sites was not
Stefano Giustino   +7 more
doaj   +1 more source

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler   +3 more
wiley   +1 more source

Data from: Trophic niche overlap decreases in related mesocarnivore species

open access: yes
phylogenetic_dist: Contains the extrapolation of phylogenetic distances from cytochrome b data to mitochondrial distances in carnivores. Includes pairwise distance tables and Python scripts testing regression models and regression trees.pianka: Includes ...
Hernández-Hernández, Javier   +5 more
core   +1 more source

Measures of Niche Overlap, II [PDF]

open access: yes, 2017
An axiomatic basis for the construction of measures of niche overlap is analysed, and its implications are discussed, with particular reference to the more commonly used measures.
BARBOUR, A. D., GERRARD, R.
core  

Appendix B. Calculation of niche overlap.

open access: yes, 2016
Calculation of niche ...
Michael Power (2817742)   +5 more
core   +1 more source

Advancing Human Skin Equivalents: The Crucial Role of Neurovascular Integration

open access: yesAdvanced Healthcare Materials, EarlyView.
This review discusses the importance of integrating vascular and peripheral nerve systems into human skin equivalents (HSEs) to better recapitulate native skin physiology. Recent advances in vascularized, innervated, and neurovascularized HSEs are highlighted, together with emerging bioengineering strategies, current challenges, and future ...
Hao Wu   +4 more
wiley   +1 more source

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