Results 21 to 30 of about 122,457 (215)

Systematic first-principles calculations of charge transfer transitions of transition metal ions (Sc3+, Ti3+, V3+, Cr3+, Mn3+, Fe3+) in α-Al2O3

open access: yesOptical Materials: X, 2019
In order to predict the LMCT energies for various trivalent transition metal (TM) ions in α-Al2O3 nonempirically, we performed first-principles calculations using TMO69− cluster (TM = Sc3+, Ti3+, V3+, Cr3+, Mn3+, Fe3+) using the Discrete Variational ...
Shota Takemura, Kazuyoshi Ogasawara
doaj   +1 more source

Forecasting High-Dimensional Covariance Matrices Using High-Dimensional Principal Component Analysis

open access: yesAxioms, 2022
We modify the recently proposed forecasting model of high-dimensional covariance matrices (HDCM) of asset returns using high-dimensional principal component analysis (PCA).
Hideto Shigemoto, Takayuki Morimoto
doaj   +1 more source

UMNH:Mamm:669

open access: yes, 2023
UMNH:Mamm:669 Voucher Specimen Study ...
UMNH VZ Staff
core  

Difficult Diagnosis of Spontaneous Intracranial Hypotension with Nausea and Lower Abdominal Pain as Main Complaints: A Case Report

open access: yesReports
Background and Clinical Significance: Symptoms of spontaneous intracranial hypotension include orthostatic headaches due to decreased cerebrospinal fluid (CSF) levels.
Misaki Yokoi   +4 more
doaj   +1 more source

Biofabrication of highly pure copper oxide nanoparticles using wheat seed extract and their catalytic activity: A mechanistic approach

open access: yesGreen Processing and Synthesis, 2019
A facile novel green methodology is presented for the synthesis of highly stable and well-dispersed copper oxide nanoparticles using aqueous wheat seed extract.
Buazar Foad   +3 more
doaj   +1 more source

Prototype of an Ankle Neurorehabilitation System with Heuristic BCI Using Simplified Fuzzy Reasoning

open access: yesApplied Sciences, 2019
Neurorehabilitation using a brain−computer interface (BCI) requires machine learning, for which calculations take a long time, even days. However, the demands of actual rehabilitation are becoming increasingly rigorous, requiring that processes be ...
Norihiko Saga   +5 more
doaj   +1 more source

Mixed-Valent Trinuclear CoIII-CoII-CoIII Complex with 1,3-Bis(5-chlorosalicylideneamino)-2-propanol

open access: yesMolecules, 2022
A mixed-valent trinuclear complex with 1,3-bis(5-chlorosalicylideneamino)-2-propanol (H3clsalpr) was synthesized, and the crystal structure was determined by the single-crystal X-ray diffraction method at 90 K.
Masahiro Mikuriya   +7 more
doaj   +1 more source

Similar Supergraph Search Based on Graph Edit Distance

open access: yesAlgorithms, 2021
Subgraph and supergraph search methods are promising techniques for the development of new drugs. For example, the chemical structure of favipiravir—an antiviral treatment for influenza—resembles the structure of some components of RNA.
Masataka Yamada, Akihiro Inokuchi
doaj   +1 more source

Perturbation of EPHA2 and EFNA1 trans binding amplifies inflammatory response in airway epithelial cells

open access: yesiScience
Summary: The interactions between EPH receptors and ephrin (EFN) ligands play a crucial role in maintaining epithelial integrity and aiding in defense against infections. However, it remains unclear how the EPH-EFN trans-binding changes during infections
Ryosuke Fukuda   +4 more
doaj   +1 more source

Effect of the Addition of Essential Oils and Functional Extracts of Clove on Physicochemical Properties of Chitosan-Based Films

open access: yesInternational Journal of Polymer Science, 2015
Mechanical and barrier properties of chitosan films prepared with essential oils of clove and functional extract were studied. The films made with functional extracts (esters E6 and E7) presented the significant increment of extensibility compared with ...
Paola Reyes-Chaparro   +5 more
doaj   +1 more source

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