Results 51 to 60 of about 395,400 (125)

Integrating a prospective pilot trial and patient-derived xenografts to trace metabolic changes associated with acute myeloid leukemia

open access: yesJournal of Hematology & Oncology, 2016
Despite the considerable progress in understanding the molecular bases of acute myeloid leukemia (AML), new tools to link disease biology to the unpredictable patient clinical course are still needed.
Matteo G. Carrabba   +11 more
doaj   +1 more source

Resonance Offset Tailored Pulses for NMR Quantum Computation [PDF]

open access: yesarXiv, 2000
We describe novel composite pulse sequences which act as general rotors and thus are suitable for nuclear magnetic resonance (NMR) quantum computation. The Resonance Offset Tailoring To Enhance Nutations (ROTTEN) approach permits perfect compensation of off-resonance errors at two selected frequencies placed symmetrically around the frequency of the RF
arxiv  

The potential toxic impact of different gadolinium-based contrast agents combined with 7-T MRI on isolated human lymphocytes

open access: yesEuropean Radiology Experimental, 2018
Background To investigate a potentially amplifying genotoxic or cytotoxic effect of different gadolinium-based contrast agents (GBCAs) in combination with ultra-high-field 7-T magnetic resonance imaging (MRI) exposure in separated human peripheral blood ...
Björn Friebe   +6 more
doaj   +1 more source

Nanomechanical detection of nuclear magnetic resonance using a silicon nanowire oscillator [PDF]

open access: yes, 2011
We report the use of a silicon nanowire mechanical oscillator as a low-temperature nuclear magnetic resonance force sensor to detect the statistical polarization of 1H spins in polystyrene. Under operating conditions, the nanowire experienced negligible surface-induced dissipation and exhibited a nearly thermally-limited force noise of 1.9 aN^2/Hz in ...
arxiv   +1 more source

Origin of enhanced dynamic nuclear polarization and all-optical nuclear magnetic resonance in GaAs quantum wells [PDF]

open access: yes, 2001
Time-resolved optical measurements of electron-spin dynamics in a (110) GaAs quantum well are used to study the consequences of a strongly anisotropic electron g-tensor, and the origin of previously discovered all-optical nuclear magnetic resonance. All components of the g-tensor are measured, and a strong anisotropy even along the in-plane directions ...
arxiv   +1 more source

DNA binding mechanism of WhiB4 from Mycobacterium tuberculosis

open access: yesMagnetic Resonance Letters, 2022
Mycobacterium tuberculosis (Mtb), the pathogen of tuberculosis, has latently infected about one-third of the world's population and may lead to severe clinical symptoms and death.
Qiran Zhai   +5 more
doaj  

Anomalous longitudinal relaxation of nuclear spins in CaF$_2$ [PDF]

open access: yes, 2015
We consider the effect of non-secular resonances for interacting nuclear spins in solids which were predicted theoretically to exist in the presence of strong static and strong radio-frequency magnetic fields. These resonances imply corrections to the standard secular approximation for the nuclear spin-spin interaction in solids, which, in turn, should
arxiv   +1 more source

A Supramolecular Interaction of a Ruthenium Complex With Calf-Thymus DNA: A Ligand Binding Approach by NMR Spectroscopy

open access: yesFrontiers in Chemistry, 2019
Lawsone itself exhibits interesting biological activities, and its complexation with a metal center can improve the potency. In this context a cytotoxic Ru-complex, [Ru(law)(dppb)(bipy)] (law = lawsone, dppb = 1,4-bis(diphenylphosphino)butane and bipy ...
Flávio Vinícius Crizóstomo Kock   +5 more
doaj   +1 more source

Oncogenic p53 triggers amyloid aggregation of p63 and p73 liquid droplets

open access: yesCommunications Chemistry
P53 Phase separation is crucial towards amyloid aggregation and p63 and p73 have enhanced expression in tumors. This study examines the phase behaviors of p53, p63, and p73. Here we show that unlike the DNA-binding domain of p53 (p53C), the p63C and p73C
Elaine C. Petronilho   +12 more
doaj   +1 more source

Home - About - Disclaimer - Privacy