نتایج جستجو برای: relaxation parameters

تعداد نتایج: 649844  

2015
Patrick L. Combettes Jean-Christophe Pesquet

We investigate the asymptotic behavior of a stochastic version of the forward-backward splitting algorithm for finding a zero of the sum of a maximally monotone set-valued operator and a cocoercive operator in Hilbert spaces. Our general setting features stochastic approximations of the cocoercive operator and stochastic perturbations in the evaluation of the resolvents of the set-valued operat...

Journal: :Evidence-based Complementary and Alternative Medicine : eCAM 2007
Kerstin Khattab Ahmed A. Khattab Jasmin Ortak Gert Richardt Hendrik Bonnemeier

Relaxation techniques are established in managing of cardiac patients during rehabilitation aiming to reduce future adverse cardiac events. It has been hypothesized that relaxation-training programs may significantly improve cardiac autonomic nervous tone. However, this has not been proven for all available relaxation techniques. We tested this assumption by investigating cardiac vagal modulati...

Journal: :PLoS ONE 2008
Conan K. Wang Horst Joachim Schirra David J. Craik

Self-association is an important biological phenomenon that is associated with many cellular processes. NMR relaxation measurements provide data about protein molecular dynamics at the atomic level and are sensitive to changes induced by self-association. Thus, measurements and analysis of NMR relaxation data can provide structurally resolved information on self-association that would not be ac...

2007
M. R. Trummer

Zusammenfassung A Note on the ART of Relaxation. The ART algorithm, an iterative technique for solving large systems of linear equations, is shown to converge even for inconsistent systems, provided the relaxation parameters are chosen appropriately. The limit is a weighted least squares solution. AMS Subject Classifications: 65FI0, 15A09, 92A07.

2015
Andrea Ehrmann Tomasz Blachowicz Frank Heimlich Andrea Brücken Marcus O. Weber

While tailoring a garment or a technical textile, relaxation processes of a knitted fabric after production have to be taken into account. Such dimensional changes can occur during a long time of dry relaxation, during wet relaxation, or during washing relaxation, the latter having the strongest infl uence on a fabric. Besides fabric construction and yarn material, the dimensions of a knitted f...

Journal: :journal of nursing and midwifery sciences 0
homeyra tahmasbi department of nursing, faculty of medicine, islamic azad university, sari branch, mazandaran, iran soghra hasani nursing faculty of medicine,islamic azad university, sari branch, mazandaran, iran

background and purpose: anxiety is a common problem associated with invasive medical procedures, especially in patients undergoing coronary angiography. as an intensifier at cardiovascular reactions, anxiety poses significant risk to the health of patients undergoing angiography. researchers believe that use of benson’s relaxation technique could reduce anxiety in different patients. this study...

Journal: :iranian journal of radiology 0
li liu department of radiology, shanghai cancer center, fudan university, shanghai, china bo yin department of radiology, huashan hospital, fudan university, shanghai, china dao ying geng department of radiology, huashan hospital, fudan university, shanghai, china yi ping lu department of radiology, huashan hospital, fudan university, shanghai, china wei jun peng department of radiology, shanghai cancer center, fudan university, shanghai, china; department of radiology, shanghai cancer center, fudan university, shanghai, china. tel: +86-13817515007

conclusion in breast cancer after nac, the lesion t2 relaxation time was reduced in the responders, and this finding is potentially useful to assess the response to nac. results in 26 cases with nac, the mean lesion t2 relaxation time before nac was 81.34 ± 13.68 ms, compared with 64.50 ± 8.71 ms after nac. significant differences in the lesion t2 relaxation times existed between the pre- and p...

Journal: :Acta biomaterialia 2012
Swapnika Ratakonda Upasana M Sridhar R Russell Rhinehart Sundararajan V Madihally

We evaluated and modeled the viscoelastic characteristics of chitosan and chitosan-gelatin scaffolds prepared using a freeze-drying technique. Chitosan and chitosan-gelatin solutions (0.5 and 2 wt.%) were frozen at -80°C and freeze-dried. Using the scaffolds, uniaxial tensile properties were evaluated under physiological conditions (hydrated in phosphate buffered saline at 37°C) at a cross-head...

Journal: :trauma monthly 0
mohammad hosein kalantar motamedi trauma research center, baqiyatallah university of medical sciences, tehran, ir iran; trauma research center, baqiyatallah university of medical sciences, office of the editor, tehran, ir iran. fax: +98-2188053766

Journal: :نشریه مراقبت پرستاری مددجو محور 0
tahereh najafi ghezeljeh department of intensive care unit, school of nursing and midwifery, iran university of medical sciences, tehran, iran. hojatollah sedghian department of intensive care unit, school of nursing and midwifery, iran university of medical sciences, tehran, iran. fatemeh mohaddes ardabili department of medical surgical nursing, school of nursing and midwifery, iran university of medical sciences, tehran, iran. habibollah rezaei loieh shahid rajaei cardiovascular, medical and research center, tehran, iran.

background: fatigue is one of the important factors in nursing performance because it affects the quality of care provided to the patients. in this regard, some complementary interventions such as benson relaxation techniques may relieve fatigue. this study aimed to evaluate the effect of benson relaxation on fatigue of nurses working in intensive care units. methods: this is an experimental st...

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