Results 21 to 30 of about 776,397 (353)

Microwave-assisted efficient and facile synthesis of tetramic acid derivatives via a one-pot post-Ugi cascade reaction

open access: yesBeilstein Journal of Organic Chemistry, 2020
A facile microwave-assisted method for the synthesis of tetramic acid derivatives has been developed through an Ugi/Dieckmann cyclization strategy with DBU.
Yong Li   +8 more
doaj   +1 more source

A verified equivalent-circuit model for slotwaveguide modulators [PDF]

open access: yes, 2019
We formulate and experimentally validate an equivalent-circuit model based on distributed elements to describe the electric and electro-optic (EO) properties of travellingwave silicon-organic hybrid (SOH) slot-waveguide modulators.
Freude, Wolfgang   +9 more
core   +3 more sources

Modulating GABA modulators [PDF]

open access: yesBritish Journal of Pharmacology, 2006
Benzodiazepines produce a broad spectrum of behavioral effects, which may be clinically desirable or undesirable, by positively or negatively modulating the effects of GABA at GABAA receptors. Over the past 20 years, much effort has been devoted towards identifying new compounds with limited undesirable effects.
openaire   +2 more sources

Broadband high-efficiency near-infrared graphene phase modulators enabled by metal–nanoribbon integrated hybrid plasmonic waveguides

open access: yesNanophotonics, 2021
The phase modulator is a key component in optical communications for its phase modulation functions. In this paper, we numerically demonstrate a variety of ultra-compact high-efficiency graphene phase modulators (GPMs) based on metal–nanoribbon ...
Ye Longfang   +5 more
doaj   +1 more source

Chimeric glutamate receptor subunits reveal the transmembrane domain is sufficient for NMDA receptor pore properties but some positive allosteric modulators require additional domains [PDF]

open access: yes, 2016
NMDA receptors are ligand-gated ion channels that underlie transmission at excitatory synapses and play an important role in regulating synaptic strength and stability.
Huettner, Jmaes E   +2 more
core   +2 more sources

Oscillatory Modules [PDF]

open access: yesLetters in Mathematical Physics, 2009
Developing the ideas of Bressler and Soibelman and of Karabegov, we introduce a notion of an oscillatory module on a symplectic manifold which is a sheaf of modules over the sheaf of deformation quantization algebras with an additional structure. We compare the category of oscillatory modules on a torus to the Fukaya category as computed by Polishchuk ...
openaire   +3 more sources

Old drugs are new again (drugs) [PDF]

open access: yesSerbian Journal of Anesthesia and Intensive Therapy, 2017
The societal cost of development of new medications is high. The faster and more economical approach is to use already proven pharmacological characteristics of drugs in use for development of new drug formulations.
Jovičić Jelena   +5 more
doaj   +1 more source

Supporting the identification of novel fragment-based positive allosteric modulators using a supervised molecular dynamics approach: A retrospective analysis considering the human A2A adenosine receptor as a key example [PDF]

open access: yes, 2017
Structure-driven fragment-based (SDFB) approaches have provided efficient methods for the identification of novel drug candidates. This strategy has been largely applied in discovering several pharmacological ligand classes, including enzyme inhibitors ...
Deganutti, Giuseppe, Moro, Stefano
core   +1 more source

The Z-Drugs Zolpidem, Zaleplon, and Eszopiclone Have Varying Actions on Human GABAA Receptors Containing γ1, γ2, and γ3 Subunits

open access: yesFrontiers in Neuroscience, 2020
γ-Aminobutyric-acid type A (GABAA) receptors expressing the γ1 or γ3 subunit are only found within a few regions of the brain, some of which are involved in sleep.
Grant Richter   +3 more
doaj   +1 more source

Recent progress in terahertz metamaterial modulators

open access: yesNanophotonics, 2022
The terahertz (0.1–10 THz) range represents a fast-evolving research and industrial field. The great interest for this portion of the electromagnetic spectrum, which lies between the photonics and the electronics ranges, stems from the unique and ...
Degl’Innocenti Riccardo   +2 more
doaj   +1 more source

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