Results 41 to 50 of about 84,976 (267)

Isotope venography

open access: yesJournal of British Surgery, 1973
Abstract An isotope method of venography using 99mTc as pertechnetate (or MAA technetium) and a gamma camera is described. Initial results are encouraging. Good visualization of the major venous channels in the lower limbs and pelvis can easily be obtained.
J H, Highman, E, O'Sullivan, E, Thomas
openaire   +2 more sources

Irradiation‐Induced Spin Bath Evolution and as‐Grown Hydrogen Defects in CVD Diamond Revealed by NV‐Based DEER Spectroscopy

open access: yesAdvanced Functional Materials, EarlyView.
Here, we provide the reader with the current state of the art in the fabrication of high‐T2‐coherence diamond, optimized through the use of double electron–electron resonance (DEER) spectroscopy. We reveal the main as well as yet unidentified spin defects, the reduction of which is essential for reducing the spin bath and fabricating materials for ...
Olga Rubinas   +6 more
wiley   +1 more source

Core–shell structured gold nanoparticles as carrier for 166Dy/166Ho in vivo generator

open access: yesEJNMMI Radiopharmacy and Chemistry, 2022
Background Radionuclide therapy (RNT) has become a very important treatment modality for cancer nowadays. Comparing with other cancer treatment options, sufficient efficacy could be achieved in RNT with lower toxicity.
Runze Wang   +3 more
doaj   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

Theoretical study of XUV pulse shaping due to the modulation of an IR pulse in macroscopic systems

open access: yesNew Journal of Physics
Propagation effects are widely recognized as the origin of complex features observed in macroscopic absorption spectra. Here, we examine the evolution of spectral reshaping driven by laser-imposed initial phase modulation during pulse propagation.
Haohan Shi   +5 more
doaj   +1 more source

Effect of Gamma Irradiation on Mechanical and Thermal Properties of Fish Gelatin Film Isolated from Lates Calcarifer Scales

open access: yesIndonesian Journal of Chemistry, 2013
The objective of this research was to investigate the effect of gamma irradiation on mechanical and thermal properties of fish gelatin films prepared from scales of Lates calcarifer. The films were irradiated by gamma rays at varied doses (0-50 kGy). The
Dian Pribadi Perkasa   +3 more
doaj   +1 more source

Graphene Quantum Dot‐Induced Microstrain for Framework Stabilization of High‐Entropy Prussian Blue Analog in High‐Current Alkaline Hydrogen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
The intrinsic distortion‐rich lattice of HEPBA with GQD‐enabled microstrain engineering establishes a mechanistic route toward high‐performance alkaline hydrogen evolution reaction. HEPBA inherently feature heterogeneous local coordination environments arising from multimetal incorporation, while properly introducing GQD during coprecipitation ...
Mia Rinawati   +10 more
wiley   +1 more source

Radiation-Induced Degradation of Pirimiphos Methyl in Aerated Solution

open access: yesAtom Indonesia, 2004
Degradation of pirimiphos methyl (1) as an active ingredient in Minawet insecticide 250 EC formulation in aqueous solution was studied. The absorbance, pH, COD (Chemical Oxygen Demand) in aerated solution, and the analyses of degradation products at ...
Hendig Winarno   +4 more
doaj   +1 more source

Mimetic Core‐Sheath Silk Sutures with Superior‐Strength for Pain Management, Anti‐Infection and Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
ABSTRACT Sutures are crucial for tissue approximation and wound healing. Besides their strength limits requirement, they often fail to effectively address complications like infection and pain. Inspired by natural silk's “core‐sheath” structure, our suture features a wet‐spun core of n zinc‐fortified silk fibroin fibers (RSF‐Zn2+) after drawing with ...
Yi Peng   +11 more
wiley   +1 more source

Photoisomerization-mediated tunable pore size in metal organic frameworks for U(VI)/V(V) selective separation

open access: yesNature Communications
Selective extracting uranium from seawater is quite challenging, particularly the presence of vanadium, which poses a significant obstacle for most amidoxime absorbents.
Pengcheng Zhang   +10 more
doaj   +1 more source

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