Results 31 to 40 of about 3,716,942 (293)

Effect of geometric and electronic structures on the finite temperature behavior of Na$_{58}$, Na$_{57}$, and Na$_{55}$ clusters

open access: yes, 2006
An analysis of the evolutionary trends in the ground state geometries of Na$_{55}$ to Na$_{62}$ reveals Na$_{58}$, an electronic closed--shell system, shows namely an electronically driven spherical shape leading to a disordered but compact structure ...
D. G. Kanhere, Mal-Soon Lee, R. Kusche
core   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

open access: yesAdvanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang   +4 more
wiley   +1 more source

Conceptualising quality early childhood education: Learning from young children in Brazil and South Africa through creative and play‐based methods

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Early childhood has increasingly been acknowledged as a vital time for all children. Inclusive and quality education is part of the United Nations Sustainable Development Goals, with the further specification that all children have access to quality pre‐primary education.
Laura H. V. Wright   +8 more
wiley   +1 more source

Del pecado como símbolo racional entre Pelagio y Agustín según Paul Ricoeur

open access: yesCuadernos de Teología - Universidad Católica del Norte, 2023
Centrándose en el pecado en Pelagio como posibilidad como ejercicio de la libertad y de la responsabilidad individual, el artículo señala la defensa de la neutralidad que implica la creación del ser humano y su capacidad para el bien y el mal, subrayando
Luiz Carlos Mariano Da Rosa
doaj   +1 more source

Clostridium perfringens epsilon toxin induces blood brain barrier permeability via caveolae-dependent transcytosis and requires expression of MAL. [PDF]

open access: yes, 2019
Clostridium perfringens epsilon toxin (ETX) is responsible for causing the economically devastating disease, enterotoxaemia, in livestock. It is well accepted that ETX causes blood brain barrier (BBB) permeability, however the mechanisms involved in this
Dobrow, Sebastian   +7 more
core   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

open access: yesAdvanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal   +7 more
wiley   +1 more source

SU(2) x U(1) Yang-Mills theories in 3d with Higgs field and Gribov ambiguity [PDF]

open access: yes, 2013
We study the structure of the gauge propagators of a 3d version of the electroweak interaction in terms of the Higgs vacuum expectation value., of the non-Abelian gauge coupling g, and of the Abelian gauge coupling g', when nonperturbative effects ...
Capri, MAL   +5 more
core   +2 more sources

Hydrogelation via Supramolecular Copolymerization of Structural Water within Adaptive Metal–Organic Fibers

open access: yesAdvanced Materials, EarlyView.
Structural water is harnessed as an active co‐monomer to drive supramolecular polymerization in bulk water. Zinc(II) Salphen complexes confine water molecules to form hollow, metal–organic nanofibers that assemble into adaptive hydrogels with thermoresponsive mechanics and selective chiral recognition.
Merlin R. Stühler   +10 more
wiley   +1 more source

Plotino e o problema das origens na metafísica subjetivo-objetiva

open access: yesAufklärung, 2017
plenamente ciente de que a metafísica tem de ser um discurso sobre homem e natureza, e que, se este discurso quiser remontar às causas últimas tem de lidar com a unidade sistemática de ambas as esferas, Plotino se empenha em reconstituir a ordem lógica ...
Humberto Schubert Coelho
doaj   +1 more source

Hierarchically Engineered Multi‐Enzyme Nanoreactors for in vitro Drug Biosynthesis and Pathway Transplantation Into Cells

open access: yesAdvanced Materials, EarlyView.
A hierarchically structured metal–organic framework (eMIL) is shown to host the complete six‐enzyme biosynthesis pathway for the anti‐cancer pigment violacein, reshaping reaction dynamics and multiplying in vitro yields. eMIL nanoreactors deliver this reconstituted bacterial multi‐protein system into mammalian cells, where cell‐derived substrates and ...
Ainur Sharip   +12 more
wiley   +1 more source

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