نتایج جستجو برای: cell contact

تعداد نتایج: 1824576  

Journal: :Proceedings of the National Academy of Sciences 2012

Journal: :iranian journal of pharmaceutical sciences 0
shahin bonakdar biomedical engineering department, islamic azad university of mashhad, mashhad, iran fariba orang biomedical engineering department, amirkabir university of technology, tehran, iran mohammad rafienia plysics and biomedical engineering department, isfahan university of medical sciences, iran rana imani biomedical engineering department, amirkabir university of technology, tehran, iran,

determination of blood compatibility is an important problem in blood contacting devices. in this study, two classes of materials including polyurethane (based on polyethylene glycol and poly tetrametylene oxide) and polyvinyl alcohol samples, with different hydrophilicity properties were synthesized and their physico-chemical properties were compared. water uptake ratio, ftir spectroscopy, and...

Journal: :The Journal of Experimental Medicine 1983
M Iverson W Ptak D R Green R K Gershon

The data presented in this paper show that the population of cells that adoptively transfer contact hypersensitivity are Lyt-1+ 2-, I-J- and nonadherent to V. villosa lectin. However, the adoptive transfer of immunity by this population of cells is successful only when the recipient has been treated in such a way as to impair the host immunosuppression mechanism. This population cannot, on its ...

2016
Ki-Hwan Nam Peter Kim David K. Wood Sunghoon Kwon Paolo P. Provenzano Deok-Ho Kim

To investigate complex biophysical relationships driving directed cell migration, we developed a biomimetic platform that allows perturbation of microscale geometric constraints with concomitant nanoscale contact guidance architectures. This permits us to elucidate the influence, and parse out the relative contribution, of multiscale features, and define how these physical inputs are jointly pr...

2014
Olga V. Leontieva Mikhail V. Blagosklonny

The most physiological type of cell cycle arrest - namely, contact inhibition in dense culture - is the least densely studied. Despite cell cycle arrest, confluent cells do not become senescent. We recently described that mTOR (target of rapamycin) is inactive in contact-inhibited cells. Therefore, conversion from reversible arrest to senescence (geroconversion) is suppressed. I this Perspectiv...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1974
R L Davidson D Horn

The growth characteristics of a bromodeoxyuridine-dependent cell line that was derived from a non-contact-inhibited Syrian hamster melanoma line were studied. The dependent cells require high concentrations of bromodeoxyuridine not only for optimal growth but also for the maintenance of the non-contact-inhibited state. When grown in the absence of bromodeoxyuridine, the dependent cells become c...

Journal: :Frontiers in Bioengineering and Biotechnology 2020

Journal: :Canadian Journal of Political Science 2021

Abstract Contact tracing applications have been deployed at a fast pace around the world to stop spread of COVID-19 and may be key containing future pandemics. This study aims explain public opinion toward cell phone contact using survey experiment. We build upon theory in evolutionary psychology—disease avoidance—to predict how media coverage pandemic affects support for containment measures. ...

اصغری جعفر آبادی, محمد, امامقلی, عسگر, حرفه دوست, غلامرضا, ذوالفقاری, داود, صدرایی, سید همایون, صدری, مینو, کاکا, غلامرضا,

Background and Objective: Poly D,L-lactic-co-glycolic acid (PLGA) is known as biodegradable and biocompatible polymer. These polymers have recently received much attention in tissue engineering. The aim of this study was to investigate the biological behavior of the bone marrow stromal cells (BMSCs) in culturing with PLGA nanofibers coated with poly-L-lysine or gelatin. Materials and Methods: I...

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