نتایج جستجو برای: ica

تعداد نتایج: 8782  

Journal: :Notes on IFS 2023

The idea of the InterCriteria Analysis (ICA) was generated by authors in 2014. For next (already 9) years, ICA has been an object intensive research and applications. In present paper, extension is introduced. it, criteria or objects have their own weight coefficients, priorities. particular case, when these coefficients are equal to 1, standard appears.

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 1999
F Malberti M Farina E Imbasciati

BACKGROUND The regulation of PTH secretion by calcium is altered in patients with primary hyperparathyroidism (HPT). A similar abnormality may occur in secondary HPT, but comparisons of PTH secretion in normal subjects and those with secondary HPT have given contrasting results. Differences in baseline serum ionized calcium (ICa) may partly account for these conflicting results. The aim of the ...

2015
Guillaume Jean Samuel Granjon Eric Zaoui Patrik Deleaval Jean-Marc Hurot Christie Lorriaux Brice Mayor Charles Chazot

BACKGROUND Measuring blood calcium level is recommended in haemodialysis (HD) patients. The Kidney Disease Improving Global Outcomes position states that the measurement of ionized calcium (ICa) level is preferred, but in the clinical setting, due to technical difficulties, total calcium (tCa) level is preferred to ICa. AIM The aim of this study was to test the possibility of delayed ICa anal...

Journal: :American journal of physiology. Heart and circulatory physiology 2016
Rikuo Ochi Vidhi Dhagia Anand Lakhkar Dhara Patel Michael S Wolin Sachin A Gupte

Voltage-gated L-type Ca(2+) current (ICa,L) induces contraction of arterial smooth muscle cells (ASMCs), and ICa,L is increased by H2O2 in ASMCs. Superoxide released from the mitochondrial respiratory chain (MRC) is dismutated to H2O2 We studied whether superoxide per se acutely modulates ICa,L in ASMCs using cultured A7r5 cells derived from rat aorta. Rotenone is a toxin that inhibits complex ...

Journal: :Stroke 1998
M Kluytmans J van der Grond B C Eikelboom M A Viergever

BACKGROUND AND PURPOSE The presence and importance of hemodynamic factors to the beneficial effect of carotid endarterectomy (CEA) in patients with severe stenosis of the internal carotid artery (ICA) is unclear. The purpose of this study was to investigate possible hemodynamic changes caused by a severe ICA stenosis and the subsequent changes after CEA. METHODS Hemodynamic parameters were ac...

Journal: :Psychophysiology 2017
Matthew B Pontifex Kathryn L Gwizdala Andrew C Parks Martin Billinger Clemens Brunner

Despite the growing use of independent component analysis (ICA) algorithms for isolating and removing eyeblink-related activity from EEG data, we have limited understanding of how variability associated with ICA uncertainty may be influencing the reconstructed EEG signal after removing the eyeblink artifact components. To characterize the magnitude of this ICA uncertainty and to understand the ...

Journal: :Stroke 1998
Masahiro Yasaka

BACKGROUND AND PURPOSE We attempted ultrasonographic evaluation of the distal extracranial internal carotid artery (ICA) using the transoral method (transoral carotid ultrasonography [TOCU]). METHODS The subjects consisted of five healthy volunteers and seven stroke patients. Examinations were performed with a color Doppler flow imaging system equipped with convex array transducers (7 or 9.5 ...

Journal: :Stroke 2013
Dimitri Renard Souhayla Azakri Caroline Arquizan Bart Swinnen Pierre Labauge Vincent Thijs

BACKGROUND AND PURPOSE Carotid artery dissection (CAD) is more common with increased styloid process length. Our goal was to determine whether proximity of the styloid process and the hyoid bone to the internal carotid artery (ICA) was a risk factor for CAD. METHODS We studied axial slices on computed tomography angiograms of 88 patients with nonaneurysmal CAD, from 88 age- and sex-matched co...

2015
K.H. Chang J. Cotter G.T. McGreal

A 72-year-old man presented with a 3-day history of recurrent transient ischaemic attacks comprising slurred speech, left arm weakness and paresthesia. Carotid Doppler revealed total occlusion of the right internal carotid artery (ICA). Computed tomography angiography demonstrated occlusion of the proximal right ICA over a length of 1.5 cm. The ICA distal to the occlusion was entirely normal. I...

2002
Yoshinori Sakaguchi Seiichi Ozawa Manabu Kotani

Recently, Independent Component Analysis (ICA) has been applied to not only problems of blind signal separation, but also feature extraction of patterns. However, the effectiveness of features extracted by ICA (ICA features) has not been verified yet. As one of the reasons, it is considered that ICA features are obtained by increasing their independence rather than by increasing their class sep...

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