Results 41 to 50 of about 51,449 (224)
Finite-Sample Precision Limits for Expected Shortfall Forecast Comparisons
MathematicsExpected shortfall (ES) is a tail functional whose estimation precision is governed by the effective tail sample size nα rather than by the nominal calibration size n.
Daniel Traian Pele +1 more
doaj +1 more source
Biotechnology and Bioengineering, EarlyView.ABSTRACT The biocatalytic production of nicotinic acid using nitrilases has emerged as a promising alternative to conventional chemical synthesis, offering improved selectivity and environmental sustainability. In this study, we developed a continuous‐flow millireactor system employing Escherichia coli cells expressing a nitrilase from Paraburkholderia
Jonathan Bassut +8 more
wiley +1 more source
, 2013 Apresenta uma imagem de microscopia óptica de um corte histológico da pele de um embrião (corado pelo método tricrômico de Gomori). Nota-se as células epiteliais do ectoderma se projetando para o tecido conjuntivo embrionário para formar anexos ...
Gitirana, Lycia de Brito
core +3 more sources
Self-skincare knowledge and practice described by elderly persons in the mid-west of Minas Gerais
Revista Brasileira de Geriatria e GerontologiaThe present study aimed to assess the knowledge and practices reported by the elderly in relation to basic care of one's skin. A cross sectional study was performed from November 2011 to August 2012 in Arcos, Minas Gerais, based on a structured ...
Juliana Ladeira Garbaccio +2 more
doaj +1 more source
Revista Brasileira de Plantas Medicinais, 2014 A norbixina é um carotenóide dicarboxílico hidrofílico presente no pericarpo das sementes do urucuzeiro (Bixa orellana L.). O urucum é comumente utilizado na indústria alimentícia e cosmética como corante natural.
J.A.A. Santos +3 more
doaj +1 more source
Carbon Energy, EarlyView.Chalcogen‐based compounds are explored as versatile tools to enhance the stability and performance of halide perovskites. Their roles in defect passivation, ion migration suppression, and interface engineering are analyzed, along with impacts on device efficiency.
Atanu Jana +4 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.We have developed a multifunctional buried‐interface engineering strategy using phenethylammonium thiocyanate to regulate quasi‐2D perovskite crystallization and stabilize the lattice. The synergistic effects of SCN− and PEA+ steric confinement promote phase redistribution toward n = 2, suppressing interfacial defects and enabling the production of ...
He Dong +11 more
wiley +1 more source
Lead‐free halide perovskites for efficient light‐emitting devices
FlexMat, EarlyView.Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen +9 more
wiley +1 more source
Chiral perovskites for next‐generation chiral optoelectronics and spintronics
FlexMat, EarlyView.Benefiting from structural inversion symmetry breaking and strong spin‐orbit coupling, chiral perovskites possess intriguing chiral optical and spin properties. We overview their advances and core applications in perovskite solar cells, circularly polarized light detectors and spin circularly polarized‐light‐emitting diodes, offering great potential ...
Mengyao Zhang +13 more
wiley +1 more source