Results 171 to 180 of about 2,360,658 (324)

Correcting Errors in the Adsorbed Intermediates of CO2 Electroreduction

open access: yesCarbon Energy, EarlyView.
Flying over Jacob's ladder of density functional approximations: chemical accuracy in the DFT‐based modeling of CO2 reduction electrocatalysis can be approached with our simple semiempirical method to deconvolute and correct gas‐phase errors and adsorbed‐phase errors.
Ricardo Urrego‐Ortiz   +5 more
wiley   +1 more source

A [3]Rotaxane Containing {Ti7Ga} Rings Linking CuII: Synthesis, Structure, and Spectroscopic Studies

open access: yesChemistry – A European Journal, EarlyView.
Extended hybrid inorganic‐organic [2]‐ and [3]‐rotaxanes are reported based on heterometallic rings with threads that link CuII complexes; the crystal structures are reported, and the solution behavior is investigated by double electron electron resonance spectroscopy methods.
Selena J. Lockyer   +7 more
wiley   +1 more source

Dentinal Tubule Penetration Of Three Root Canal Sealers

open access: yesInternational Dental Journal
Aim or purpose: This study evaluated the dentinal tubule penetration of three root canal sealers (AH Plus, iRoot SP, C-Root SP) using warm vertical condensation (WVC) and single-cone (SC) techniques, providing clinical selection guidance.
Yan Bai   +3 more
doaj   +1 more source

Rh‐Catalyzed [2 + 2 + 2] Cycloaddition of Linked Bis(Diynes) Ar‐C≡C‐C≡C‐(CH2)3‐C≡C‐C≡C‐Ar With Quinones: Synthesis and Photophysical Properties of Bis(Arylethynyl)‐Naphthoquinones and Anthraquinones

open access: yesChemistry – A European Journal, EarlyView.
We report the synthesis bis(arylethynyl)naphtho‐ and anthraquinones via Rh(I)‐catalyzed [2 + 2 + 2] cycloaddition reactions. The substrate scope of both quinones and linked bis‐diynes was explored. Microwave irradiation remarkably enhanced yields.
Luana A. Machado   +16 more
wiley   +1 more source

Bone Mineralisation in Evaluation of Chronic Periapical Changes [PDF]

open access: yes, 2003
Svrha rada bila je radiodenzitometrijsko vrjednovanje kroničnih periapikalnih promjena denzitometrijskim mjerenjem. Istraživanje je provedeno na 60 zuba s kroničnim apikalnim periodontitisom, 30 muškaraca i 30 žena u dobi između 20 i 65 godina.
J. Leušić, Vera Njemirovskij
core   +1 more source

Interplay of activation kinetics and the derivative conductance determines resonance properties of neurons

open access: yes, 2018
In a neuron with hyperpolarization activated current ($I_h$), the correct input frequency leads to an enhancement of the output response. This behavior is known as resonance and is well described by the neuronal impedance.
Ceballos, Cesar C.   +3 more
core   +1 more source

Optimization of a reactor for biostimulant production with emphasis on the economic aspects of hydrolysis

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Biostimulants are increasingly used in agriculture to promote plant growth, improve stress tolerance, and support sustainable farming practices. One common method of production is chemical hydrolysis of protein‐rich waste, such as tannery by‐products, offering an economical and eco‐friendly alternative to conventional raw materials.
Karel Kolomazník   +3 more
wiley   +1 more source

Electrochemical Water Oxidation Mechanisms Involving Macrocyclic Copper(II) Complexes: Ligand Ring Size Effects on Catalytic Cycles

open access: yesChemPhysChem, EarlyView.
The ring size of the ligand strongly influences electronic properties, steric effects, and coordination modes of key intermediates. Both catalysts show similar energy barriers for OO bond formation, but [Cu(12‐TMC)]2+ exhibits more complex mechanisms due to ligand reorganization.
João Pedro C. S. Neves   +3 more
wiley   +1 more source

Pharmacokinetic Evaluation of a Cinnamon Product on CYP2A6 Substrate Drugs: Application of a Novel Tool Involving the Nicotine Metabolite Ratio

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Cinnamon (Cinnamomum spp.) is used as a culinary spice and dietary supplement. A major constituent, cinnamaldehyde, was previously shown to inactivate cytochrome P450 (CYP) 2A6 in vitro. A mechanistic static model predicted an ~5‐fold increase in the AUC of the CYP2A6 substrates nicotine and letrozole.
Aiden‐Hung P. Nguyen   +8 more
wiley   +1 more source

Application of 3D scanning technology in Royal Malaysian Air Force Industrial Revolution 4.0‐based aircraft maintenance

open access: yesIET Networks, EarlyView., 2022
Abstract 3D scanning is rapidly becoming a key maintenance tool. Aerospace was a pioneer in adopting 3D scanning technology because aircraft manufacture and maintenance require precision. Monitoring deterioration, removing components for maintenance, and verifying covert operations are not practical or helpful without technology.
T. Nanthakumaran Thulasy   +4 more
wiley   +1 more source

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