Results 51 to 60 of about 781,750 (292)

Contraction analysis of time-varying DAE systems via auxiliary ODE systems [PDF]

open access: yesarXiv, 2023
This paper studies the contraction property of time-varying differential-algebraic equation (DAE) systems by embedding them to higher-dimension ordinary differential equation (ODE) systems. The first result pertains to the equivalence of the contraction of a DAE system and the uniform global exponential stability (UGES) of its variational DAE system ...
arxiv  

THE CORRELATION BETWEEN THE RENIN AT ALDOSTERONE SYSTEM – ARTERIAL HYPERTENSION AND HORMONAL MECHANISMS

open access: yesRomanian Journal of Oral Rehabilitation
The aim of this study was to evaluate the effect of the renin- angiotensin- aldosterone system on blood pressure from a hormonal perspective. Additionally, the correlation between cardiovascular pathology and the mechanisms of this system was examined.
Liviu Stafie   +7 more
doaj   +1 more source

First integrals of ordinary linear differential systems [PDF]

open access: yesarXiv, 2012
The spectral method for building first integrals of ordinary linear differential systems is elaborated. Using this method, we obtain bases of first integrals for linear differential systems with constant coefficients, for linear nonautonomous differential systems integrable in closed form (algebraic reducible systems, triangular systems, the Lappo ...
arxiv  

UNVEILING THE SECRET CHEMISTRY OF STREET ART BY A MULTI‐TECHNIQUE APPROACH

open access: yesChemPlusChem, Accepted Article.
In recent years, graffiti and street art have gained recognition as legitimate art forms, deserving of the same care and attention as traditional art. As a result, conservators and restorers are now working to develop standardized guidelines for the cleaning, conservation, and restoration of these vibrant works.
Cosima Damiana Calvano   +5 more
wiley   +1 more source

Drug‐Event Pairs as Indicators for the Detection of Adverse Drug Reactions during Hospitalization in Routinely Collected Electronic Data Sources

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Adverse drug reactions (ADRs) are a common cause of morbidity and mortality in hospitalized patients. Identification of ADRs in clinical practice, surveillance and research is essential to prevent further harm. The aim of this study was to assess the likelihood of drugs contributing to clinically important inpatient adverse events, in order to provide ...
Anna Maria Wermund   +5 more
wiley   +1 more source

Clinical implications of left atrial changes after optimization of medical therapy in patients with heart failure

open access: yesEuropean Journal of Heart Failure, Volume 24, Issue 11, Page 2131-2139, November 2022., 2022
Among patients with new‐onset or worsening heart failure (HF) undergoing optimization of HF medical therapy, dose up‐titration of angiotensin‐converting enzyme inhibitor/angiotensin receptor blocker (ACEi/ARB) therapy was associated with lower likelihood of left atrial adverse remodelling (LAAR).
Riccardo M. Inciardi   +16 more
wiley   +1 more source

Complex Systems + Systems Engineering = Complex Systems Engineeri [PDF]

open access: yesarXiv, 2006
One may define a complex system as a system in which phenomena emerge as a consequence of multiscale interaction among the system's components and their environments. The field of Complex Systems is the study of such systems--usually naturally occurring, either bio-logical or social.
arxiv  

BLITZ‐HF: a nationwide initiative to evaluate and improve adherence to acute and chronic heart failure guidelines

open access: yesEuropean Journal of Heart Failure, Volume 24, Issue 11, Page 2078-2089, November 2022., 2022
Aims To assess adherence to guideline recommendations among a large network of Italian cardiology sites in the management of acute and chronic heart failure (HF) and to evaluate if an ad‐hoc educational intervention can improve their performance on several pharmacological and non‐pharmacological indicators.
Michele Massimo Gulizia   +197 more
wiley   +1 more source

Systems of quotients of Lie triple systems [PDF]

open access: yesCommunications in Algebra, 42(2014)(8), 3339-3349, 2013
In this paper, we introduce the notion of system of quotients of Lie triple systems and investigate some properties which can be lifted from a Lie triple system to its systems of quotients. We relate the notion of Lie triple system of Martindale-like quotients with respect to a filter of ideals and the notion of system of quotients, and prove that the ...
arxiv  

Refractory heart failure due to acquired aortic coarctation after total arch replacement: find the right antidote!

open access: yesESC Heart Failure, EarlyView.
Abstract A 31‐year‐old male presented with unexplainable symptoms of heart failure including recurrent fatigue and orthopnoea after total arch replacement for type A aortic dissection 2 months ago. Computed tomography angiography detected a severe intra‐luminal stenosis, and we successfully implanted a balloon‐expandable stent to dilate the stenosis ...
Yi Xie, Chen Lu, Jia Hu
wiley   +1 more source

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