Results 61 to 70 of about 15,070,262 (238)

Peculiarities of the process of switching polarization in polycrystalline thin films of lead zirconate-titanate [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
The paper presents the results of a study of relaxation of the dielectric permittivities in constant electric fields upon switching the polarization of thin films of lead zirconate-titanate, crystallized at different annealing temperatures.
V.V. Ivanov   +5 more
doaj   +1 more source

Artificial Periodic Irregularities and Temperature of the Lower Thermosphere

open access: yesAtmosphere, 2023
The results of temperature measurements in the lower thermosphere at altitudes of 90–130 km by the method of resonant scattering of radio waves on artificial periodic inhomogeneities (APIs) of the ionospheric plasma are presented.
Nataliya V. Bakhmetieva   +3 more
doaj   +1 more source

In-Situ Monitoring of Mechanochemical MOF Formation by NMR Relaxation Time Correlation [PDF]

open access: yes, 2023
In this paper, we present a new approach to monitoring mechanochemical transformations, based on a magnetic resonance method in which relaxation time correlation maps are used to track the formation of the popular metal-organic framework (MOF) materials ...
Hatem, Titi   +6 more
core   +2 more sources

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Molecular mobility in crystallising aromatic thermoplastic polyimide R-BAPS

open access: yesPhysics of Complex Systems, 2020
The molecular mobility of the thermoplastic aromatic R-BAPS polyimide films based on 1,3-bis (3,3’-4,4’-dicarboxyphenoxy) benzene (dianhydride) and 4,4’-bis (4-aminophenoxy) biphenyl was studied using the dielectric method.
Наталья Алексеевна Никонорова   +2 more
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

On a Relaxation of Time-Varying Actuator Placement [PDF]

open access: yesIEEE Control Systems Letters, 2020
We consider the time-varying actuator placement in continuous time, where the goal is to maximize the trace of the controllability Grammian. A natural relaxation of the problem is to allow the binary $\{0,1\}$ variable indicating whether an actuator is used at a given time to take on values in the closed interval $[0,1]$.
openaire   +4 more sources

Uncertainty estimates for magnetic relaxation times and magnetic relaxation parameters [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2019
Uncertainties in magnetic relaxation times from AC magnetometry are derived and a program for obtaining them is described, allowing statistically meaningful magnetic relaxation parameterisation.
Daniel Reta, Nicholas F. Chilton
openaire   +4 more sources

ADP‐ribosylation: An emerging regulator of the epigenome

open access: yesMolecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho   +2 more
wiley   +1 more source

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