Results 51 to 60 of about 396,425 (225)
The lower respiratory tract microbiome of critically ill patients with COVID-19
Scientific Reports, 2021 COVID-19 infection may predispose to secondary bacterial infection which is associated with poor clinical outcome especially among critically ill patients.
Paolo Gaibani +12 more
doaj +1 more source
Sharp ill-posedness of the Dirac-Klein-Gordon system in one dimension [PDF]
arXiv, 2018 We show the ill-posedness of the Cauchy problem for the Dirac-Klein-Gordon system in one dimension in the critical Sobolev space. From this, we finish the classification of the regularities for which this problem is well-posed or ill-posed.
arxiv
The microbiome and critical illness [PDF]
The Lancet Respiratory Medicine, 2016 The central role of the microbiome in critical illness is supported by a half century of experimental and clinical study. The physiological effects of critical illness and the clinical interventions of intensive care substantially alter the microbiome.
openaire +3 more sources
Cellular Physiology and Biochemistry, 2015 Background/Aims: The prognostic role of serum procalcitonin level in critically ill patients with ventilator-associated pneumonia was unclear. The aim of our study was to investigate the relationship between serum procalcitonin level and mortality risk ...
Bo Li, Xin Zhao, Shumei Li
doaj +1 more source
Ill-posedness for the two component Degasperis-Procesi equation in critical Besov space [PDF]
arXiv, 2022 In this paper, we study the Cauchy problem for the two component Degasperis-Procesi equation in critical Besov space $B^1_{\infty,1}(\mathbb R)$. By presenting a new construction of initial data, we proved the norm inflation of the corresponding solutions in $B^1_{\infty,1}(\mathbb R)$ and hence ill-posedness.
arxiv
International Journal of Medicine and Health DevelopmentBackground: The role of vitamin D in immune function is well-established in adults, but remains unclear in children. Objectives: We aimed to determine the prevalence of vitamin D deficiency in critically ill versus non-critically ill children and the ...
Eziamaka J. Enemuo +2 more
doaj +1 more source
Critical Care, 2019 Background Diagnosis of significant coronary artery disease (CAD) and acute coronary artery occlusion in ICU can be difficult, and an inappropriate intervention is potentially harmful.
Sam Orde +4 more
doaj +1 more source
Remarks on the Prandtl Equation [PDF]
arXiv, 2011 In a recent result of Gerard-Varet and Dormy [5], they established ill-posedness for the Cauchy problem of the linearized Prandtl equation around non-monotic special solution which is independent of x and satisfies the heat equation. In [6] and [7], some nonlinear ill-posedness were established with this counterexample.
arxiv
Ill-posedness for one-dimensional wave maps at the critical regularity [PDF]
arXiv, 1998 We show that the wave map equation in $\R^{1+1}$ is in general ill-posed in the critical space $\dot H^{1/2}$, and the Besov space $\dot B^{1/2,1}_2$. The problem is attributed to the bad behaviour of the one-dimensional bilinear expression $D^{-1}(f Dg)$ in these spaces.
arxiv
Ill-posedness for the 2D viscous shallow water equations in the critical Besov spaces [PDF]
arXiv, 2017 In this paper, we prove that the 2D viscous shallow water equations is ill-posed in the critical Besov spaces $\B^{\frac2p-1}_{p,1}(\R^2)$ with $p>4$. Our proof mainly depends on the method introduced by the paper \cite{C-M-Z4}.
arxiv