نتایج جستجو برای: georas hec

تعداد نتایج: 2431  

جوامع روستایی و فعالیت‌های تولیدی، خدماتی آن‌ها به دلیل ارتباط تنگاتنگ با محیط طبیعی، از دیرباز در معرض نیروهای مخرب طبیعی قرار داشته‌اند، لذا ساکنان هر منطقه به تجربه اقداماتی را برای مقابله با این حوادث و کاهش آثار زیانبار آن بر جوامع خود به کار بسته‌اند. اغلب مطالعات و اقدامات صورت گرفته نیز حاکی از آن است که کانون توجهات عمومی به عوامل فیزیکی و محیط انسانساخت مخصوصا مسکن معطوف بوده و نگرش ی...

Journal: :Materials science & engineering. C, Materials for biological applications 2017
Farah Hanani Zulkifli Fathima Shahitha Jahir Hussain Senait Sileshi Zeyohannes Mohammad Syaiful Bahari Abdull Rasad Mashitah M Yusuff

Green porous and ecofriendly scaffolds have been considered as one of the potent candidates for tissue engineering substitutes. The objective of this study is to investigate the biocompatibility of hydroxyethyl cellulose (HEC)/silver nanoparticles (AgNPs), prepared by the green synthesis method as a potential host material for skin tissue applications. The substrates which contained varied conc...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2015
Glenn K McConell Gunveen Kaur Filippe Falcão-Tebas Yet H Hong Kathryn L Gatford

In healthy humans and rodents, chronic and acute exercise improves subsequent insulin sensitivity of skeletal muscle. A large animal species with similar metabolic responses to exercise would permit longitudinal studies, including repeated biopsies of muscle and other tissues not possible in rodents, and enable study of interactions with insulin-resistant physiological states not feasible in hu...

Journal: :Journal of biomaterials science. Polymer edition 2000
R Turczyn P Weiss M Lapkowski G Daculsi

A new biomaterial is presented which consists of a cellulose derivative--silanised hydroxyethylcellulose (HEC-SIL) and biphasic calcium phosphate (BCP). Rheological properties of the polymer itself and its mixture with BCP are pH-dependent. At pH 10-12 HEC-SIL is liquid and undergoes quick gellation at pH < 9. Similarly, the paste of HEC-SIL and BCP is fluid and injectable at higher pH and soli...

2018
Urs Pietsch Jürgen Knapp Oliver Kreuzer Ludwig Ney Giacomo Strapazzon Volker Lischke Roland Albrecht Patrick Phillips Simon Rauch

BACKGROUND Providing sufficient oxygenation and ventilation is of paramount importance for the survival of emergency patients. Therefore, advanced airway management is one of the core tasks for every rescue team. Endotracheal intubation is the gold standard to secure the airway in the prehospital setting. This review aims to highlight special considerations for advanced airway management preced...

Journal: :BioTechniques 2015
Diana Lieber Daniel Hochdorfer Dagmar Stoehr Axel Schubert Ramin Lotfi Tobias May Dagmar Wirth Christian Sinzger

Infection of vascular endothelial cells (ECs) is assumed to contribute to dissemination of human cytomegalovirus (HCMV). Investigation of virus-host interactions in ECs such as human umbilical vein endothelial cells (HUVECs) is limited due to the low maximal passage numbers of these primary cells. We tested a conditionally immortalized EC line (HEC-LTT) and a permanent cell line (EA.hy926) for ...

Journal: :The Journal of clinical investigation 1988
M E Wheeler F W Luscinskas M P Bevilacqua M A Gimbrone

Activation of cultured human endothelial cells (HEC) by inflammatory stimuli, such as interleukin 1 (IL-1), tumor necrosis factor (TNF), and bacterial endotoxin (lipopolysaccharide, LPS), increases their surface adhesiveness for blood leukocytes and related cell lines. We now report that activated HEC also generate a soluble leukocyte adhesion inhibitor (LAI), which accumulates in conditioned m...

Journal: :Biomaterials 1989
P B van Wachem J M Schakenraad J Feijen T Beugeling W G van Aken E H Blaauw P Nieuwenhuis I Molenaar

The in vitro adhesion and spreading of human endothelial cells (HEC) on hydrophobic poly(ethylene terephthalate) (PETP) and moderately wettable tissue culture poly(ethylene terephthalate) (TCPETP) were studied with light microscopy and electron microscopy. Numbers of HEC adhering on TCPETP were always higher than those found on PETP. When cells were seeded in the presence of serum, extensive ce...

Journal: :Molecules and cells 2016
Pravesh Shrestha Ji-Hye Yun Woo Taek Kim Tae-Yoon Kim Weontae Lee

A balance between production and degradation of reactive oxygen species (ROS) is critical for maintaining cellular homeostasis. Increased levels of ROS during oxidative stress are associated with disease conditions. Antioxidant enzymes, such as extracellular superoxide dismutase (EC-SOD), in the extracellular matrix (ECM) neutralize the toxicity of superoxide. Recent studies have emphasized the...

2011
Khalid Hussain Shaikh

The current research investigates the HEC based training for the University teachers in Pakistan and its impact on the performance on University teachers. The Higher Education Commission (HEC) in Pakistan seeks to improve the quality of teaching by University teachers. The Commission has initiated different forms of training according to the areas of expertise in order to improve skills and imp...

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