Results 141 to 150 of about 37,303 (242)

Liquid Scintillation Counting

open access: yes, 1993
In liquid scintillation counting (LSC) we use the process of luminescense to detect ionising radiation emit$ed from a radionuclide. Luminescense is emission of visible light of nonthermal origin. 1t was early found that certain organic molecules have luminescent properties and such molecules are used in LSC.
openaire   +1 more source

Critical point drying of brain tissue for X‐ray phase‐contrast imaging

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 3, Page 759-768, May 2026.
X‐ray phase contrast tomography can efficiently image brain tissue at subcellular resolution. Critical point drying allows a gentle replacement of interstitial material by air, enhancing X‐ray phase contrast of the ultrastructural features.X‐ray phase‐contrast tomography can efficiently image brain tissue at subcellular resolution.
Safe Khan   +15 more
wiley   +1 more source

Phase and absorbance retrieval in X‐ray holographic microscopy under weak illumination using physics‐driven neural networks

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 3, Page 794-805, May 2026.
A physics‐driven deep learning model enables single‐shot retrieval of 3D phase and absorbance from shot‐noise‐limited hard X‐ray holograms. Validated on both synthetic and experimental data, it provides robust reconstruction under weak illumination.X‐ray holographic microscopy is a three‐dimensional (3D) imaging technique for nanoscale‐resolution ...
Jihwan Kim   +4 more
wiley   +1 more source

Hydrochlorides, hydrates, hydronitrate, and an unanticipated hydrolysis product of famotidine

open access: yesActa Crystallographica Section C, Volume 82, Issue 5, Page 241-249, May 2026.
The structures of a new polymorph of famotidine hydrochloride, a famotidine hydrochloride hydrate, a new hydronitrate salt of famotidine, and an unexpected hydrolyzed complex of famotidine are reported. The famotidine hydrochloride hydrate and the hydrolyzed famotidine hydrochloride have Z′ values of 2 and 4, respectively.This article contributes to ...
MacKenzie C. Weaver   +2 more
wiley   +1 more source

Vesicular glutamate transporter VGLUT2 expression emerges in substantia nigra dopamine neurons in mouse models of parkinsonism in the absence of neurodegeneration

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 9, Page 2123-2138, May 2026.
Abstract Background and Purpose Subsets of midbrain dopamine (DA) neurons express the vesicular glutamate transporter VGLUT2 and can release the excitatory neurotransmitter glutamate. VGLUT2+ DA neurons of the substantia nigra pars compacta (SNc) were shown to be more resistant to neurodegeneration in animal models of Parkinson's disease (PD ...
Sivakumar Srinivasan   +2 more
wiley   +1 more source

A PK/PD study on antihyperalgesia by an α2/3‐GABAA receptor PAM in mice: Lack of tolerance liability and potential involvement of γ1‐GABAA receptors

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 10, Page 2324-2340, May 2026.
Abstract Background and Purpose GABAA receptors (GABAARs) are heteropentameric ion channels that control almost all CNS functions, including spinal nociception. Most GABAARs contain a γ2 subunit but differ in their α and β subunit composition. TPA023B is an α2/α3 subtype selective, non‐sedative, positive allosteric modulator (PAM) with antihyperalgesic
Elena Neumann   +12 more
wiley   +1 more source

Novel Ligands for the Orphan Receptor GPR151 Modulate Morphine Action

open access: yesGenes to Cells, Volume 31, Issue 3, May 2026.
The new GPR151 ligands altered the analgesic effects of morphine. ABSTRACT GPR151 is an orphan G‐protein‐coupled receptor expressed on specific neurons. Its expression has been reported to be upregulated in the dorsal root ganglia in mouse nerve injury models, suggesting a role in pain transmission.
Hijiri Yoshida   +7 more
wiley   +1 more source

Scattering-free lanthanide-ionic liquid scintillators for high-resolution and adaptive X-ray imaging. [PDF]

open access: yesNat Commun
Qiu J   +10 more
europepmc   +1 more source

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