Results 11 to 20 of about 43,338 (227)

Use of a Local Indicator Dilution Technique for the Measurement of Oscillatory Flow [PDF]

Circulation Research, 1968
An indicator dilution method for measuring oscillatory flow in a vessel is analyzed in terms of a mixing chamber with a constant volume. For the correct measurement of mean flow, the time constant of detection of the indicator should be very much shorter than the shortest time constant of the mixing volume. The performance of such a system was examined
openaire   +2 more sources

Measurement of Solute Transport in the Endothelial Glycocalyx Using Indicator Dilution Techniques [PDF]

Annals of Biomedical Engineering, 2009
A new method is presented to quantify changes in permeability of the endothelial glycocalyx to small solutes and fluid flow using techniques of indicator dilution. Following infusion of a bolus of fluorescent solutes (either FITC or FITC conjugated Dextran70) into the rat mesenteric circulation, its transient dispersion through post-capillary venules ...
Lujia, Gao, Herbert H, Lipowsky
openaire   +2 more sources

Hygienic Practices and Level of Contamination in Toothbrushes at Mexican Homes in Guadalajara, Jalisco

Hygiene
In the present study, a Google Forms survey open questionnaire was applied to identify variables in hygiene habits that influence the contamination of toothbrushes in Mexican homes.
Luz Eduviges Garay-Martínez, Andrés Octavio Betancourt-Cortés, Alondra Lizeth Reyes-Castellanos, Sara Gabriela Ulloa-Pérez, Carlos Arnulfo Velázquez-Carriles, Beatriz Venegas-Ruiz, Jorge Manuel Silva-Jara   +6 more
doaj   +1 more source

Estimation of Ventricular Volumes by a Constant Infusion Indicator Dilution Technique [PDF]

Circulation Research, 1964
A constant infusion indicator dilution method for estimating ventricular volumes is introduced and its feasibility demonstrated. Using this method, volumes can be calculated by two different approaches, one of which does not assume effective distribution of indicator throughout end diastolic volume ( EDV ).
openaire   +2 more sources

Bedside Assessment of Cerebral Blood Flow by Double-indicator Dilution Technique

Anesthesiology, 2000
Background Currently, quantitative measurement of global cerebral blood flow (CBF) at bedside is not widely performed. The aim of the present study was to evaluate a newly developed method for bedside measurement of CBF based on thermodilution in a clinical setting.
Wietasch, GJK, Mielck, F., Scholz, M., von Spiegel, T., Stephan, H., Hoeft, A.   +5 more
openaire   +3 more sources

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Prediction of Mean Fragmentation Size in Open-Pit Mine Blasting Operations Using Histogram-Based Gradient Boosting and Grey Wolf Optimization Approach

Applied Sciences
Blast-induced rock fragmentation plays a critical role in mining and civil engineering. One of the primary objectives of blasting operations is to achieve the desired rock fragmentation size, which is a key indicator of the quality of the blasting ...
Madalitso Mame, Shuai Huang, Chuanqi Li, Xiaoguang Zhou, Jian Zhou   +4 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Minor effect of wind exposure and littoral slope on macrophyte characteristics in non-impacted lowland lakes of Poland

Frontiers in Plant Science
Aquatic vegetation is a reliable indicator of the ecological condition of surface waters. Abundance, composition and spatial structure of aquatic communities are shaped by an array of factors, which include both natural abiotic features of an ecosystem ...
Agnieszka Kolada, Sebastian Kutyła, Aleksandra Bielczyńska   +2 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source