نتایج جستجو برای: overlapped peaks

تعداد نتایج: 41748  

Journal: :Angewandte Chemie 2023

One key bottleneck of solid-state NMR spectroscopy is that 1H spectra organic solids are often very broad due to the presence a strong network dipolar couplings. We have recently suggested new approach tackle this problem. More specifically, we parametrically mapped errors leading residual broadening into second dimension and removed them in correlation experiment. In way pure isotropic proton ...

2009
A. Napolitano W. Kockenberger D. P. Auer

Introduction: GABA is the major inhibitory neurotransmitter in mammalian brain and GABAergic alterations have been implicated in several psychiatric and neurological disorders. GABA was also proposed to underlie DFM modulation (1). Because of this growing interest in understanding physiology and pathophaysiology of cerebral GABA homeostasis, there is a need for robust measurement of in vivo GAB...

2017
Moritz Pfohl Daniel D. Tune Arko Graf Jana Zaumseil Ralph Krupke Benjamin S. Flavel

In this work, a comprehensive methodology for the fitting of single-walled carbon nanotube absorption spectra is presented. Different approaches to background subtraction, choice of line profile, and calculation of full width at half-maximum are discussed both in the context of previous literature and the contemporary understanding of carbon nanotube photophysics. The fitting is improved by the...

Journal: :Annals of the Rheumatic Diseases 2021

Background: Survivin is an integral part of the Chromosomal Passenger Complex (CPC) which plays a vital role in mitosis. Experiments have demonstrated that survivin can physically bind to DNA. Crystallographic studies show binds Threonine-3 histone H3. In patients with autoimmune diseases, increased expression contributes aggravated disease phenotype. Thus, functional, and mechanistic data poin...

2010
Silvia Mari Valeria Mannella Giacomo Quilici Giovanna Musco Carlos Cobas Felipe Seoane Stan Sykora

In addition, we have taken advantage of GSD to implement under Mnova the quantitative referencing strategy known as PULCON [5]. It is well known that when dealing with biological samples containing lipids and proteins, one can not use an internal standard to perform absolute quantification of metabolites. This is due to the fact that all possible reference compounds (such as TSP or DSS) interac...

Journal: :Psychophysiology 1995
L J Trejo D L Ryan-Jones A F Kramer

We examined the attentional sensitivity of the frequency-change mismatch negativity (MMN). Subjects listened to a binaural mixture of a narrative and a series of tone bursts that included 1200-Hz standards and two deviants (1000 and 1400 Hz). In the attend-tones condition, subjects responded to one deviant and ignored the narrative. In the attend-words condition, subjects responded to target wo...

2000

In absorption chromatography, fused peaks may arise due to incomplete resolution of two or more eluting species. In figure 1, the chromatogram of an inorganic multicomponent polluting substance, acquired by means of a Dionex Ionic chromatographic system, is shown. The problem consists in quantitative evaluation of fluorine content, whose retention time is 3 mn, on the basis of the measured chro...

2002
Ewa Cukrowska Ignacy Cukrowski Josef Havel

Multivariate calibration based on a suitable experimental design (ED) and soft modelling with artificial neural networks (ANNs) is proposed for quantitative analysis of highly overlapped and disturbed differential pulse polarographic (DPP) peaks that occur in the region of a hydrogen evolution. It is demonstrated that analysis of mixtures, even if some of the constituents undergo an irreversibl...

Journal: :Pure and Applied Chemistry 2019

Journal: :Motor control 2004
Brandon Rohrer Susan Fasoli Hermano Igo Krebs Bruce Volpe Walter R Frontera Joel Stein Neviller Hogan

Submovements are hypothesized building blocks of human movement, discrete ballistic movements of which more complex movements are composed. Using a novel algorithm, submovements were extracted from the point-to-point movements of 41 persons recovering from stroke. Analysis of the extracted submovements showed that, over the course of therapy, patients' submovements tended to increase in peak sp...

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