Results 121 to 130 of about 113,946 (294)

Interplay of Orbital Overlap and Exciton Coupling in the Optical Properties of Adamantylethynyl‐Substituted Pyrene Molecular Crystals

open access: yesChemistry – A European Journal, EarlyView.
Sterically shielded adamantylethynyl‐substituted pyrenes form quasi‐one‐dimensional π‐stacks that enable direct quantification of solution‐to‐crystal spectral shifts. The optical response is dominated by band dispersion arising from frontier crystal orbitals, while excitonic contributions are secondary.
Benedikt Herbert, Kazutaka Shoyama
wiley   +1 more source

Bright Solvatochromic Fluorophores With Dual Emission Enabled by a Donor‐Engineering Strategy

open access: yesChemistry – A European Journal, EarlyView.
We screened tertiary amines for installation on the donor unit of highly emissive donor–acceptor‐type solvatochromic fluorophores based on a 9,9‐dimethyl‐2‐phenyl‐9H‐fluorene scaffold, with the aim of enabling two bright emissive states to coexist. As a result, the azetidine derivative [4] and the azepane derivative [7] exhibited clear dual emission ...
Kensei Konishi, Gen‐ichi Konishi
wiley   +1 more source

The association between neural crest‐derived glia and melanocyte lineages throughout development and disease

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Neural crest cells are a transient cell population that emerges from the dorsal neural tube during neurulation and migrates extensively throughout the embryo. Among their diverse derivatives, glial cells (such as Schwann and satellite ganglionic cells) and melanocytes represent two major lineages. In vitro studies suggested they share a common
Chaya Kalcheim
wiley   +1 more source

Role of SoxE transcription factors in development and disease

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Sox8, Sox9, and Sox10 arose by multiple rounds of genome duplications from a single SoxE gene in ancestral vertebrates. In this review, we will briefly discuss the molecular structure and function of SoxE transcription factors and their evolutionary origin. We will then discuss their expression, function, and developmental disorders.
Merin Lawrence, Gerhard Schlosser
wiley   +1 more source

Liver X Receptor α (LXRα) Regulates 5β‐Reductase (AKR1D1) Expression in Avian Embryos: Implications for Yolk Steroid Metabolism

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Steroid‐mediated maternal effects are well‐studied as a source of phenotypic variation. In bird eggs, the yolk contains various steroids that can influence embryonic development. However, one complicating factor in understanding how yolk steroids affect development is that the embryo metabolizes yolk steroids to regulate exposure.
Ryan T. Paitz   +4 more
wiley   +1 more source

Research on the effectiveness of noise reduction when encoding a lossless speech signal

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
In the meantime, speech coding is one of the methods to represent the digital speech signal as in possible fewer bits value and to maintain the quality and its clearness.
T. Akilan, L. Raja, U. Hariharan
doaj   +1 more source

Measuring Organizational Resilience in a Resource‐Constrained Environment: An Empirical Study of Micro‐and‐Small‐Service‐Enterprises (MSSEs) in Nigeria

open access: yesStrategic Change, EarlyView.
ABSTRACT There is growing evidence that a preponderance of resilience indicators discussed in management scholarship is often developed with limited consideration of the context in which micro‐and‐small‐service enterprises (MSSEs) operate. Given their strategic relevance to developing economies, it thus becomes necessary to understand the meaning of ...
Justin Okoli   +2 more
wiley   +1 more source

CLASSIFICATION OF FAULT SIGNALS BASED ON DCT AND DEEP LEARNING

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
Industrial sound analysis plays a key role in machine monitoring systems, as experienced machine operators can hear and detect many rotary machine faults.
Haitham Al Akabi, Tawfiq Al-assadi
doaj   +1 more source

Archetypes of SME Resilience: A Systematic Literature Review of Antecedents, Types and Outcomes of Resilience in SMEs

open access: yesStrategic Change, EarlyView.
ABSTRACT This systematic literature review makes three key contributions to resilience research in SMEs. First, it advances theory by synthesizing the Resource‐Based View and Dynamic Capabilities perspective to develop a novel two‐dimensional framework of SME resilience (Adaptability × Resource availability), identifying four distinct resilience ...
Egena Ode   +3 more
wiley   +1 more source

Bioinformatics Analysis of Oxidative Stress-Related Genes and Immune Infiltration Patterns in Vitiligo

open access: yesClinical, Cosmetic and Investigational Dermatology
Mingmei Yang,1,2 Huiying Wang,1 Ruzhi Zhang1 1Department of Dermatology, Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu Province, 213003, People’s Republic of China; 2Department of Dermatology, Affiliated Changzhou Children’s ...
Yang M, Wang H, Zhang R
doaj  

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