نتایج جستجو برای: spheroid
تعداد نتایج: 3052 فیلتر نتایج به سال:
We discuss the short-time response of a multicellular spheroid to an external pressure jump. Our experiments show that 5 min after the pressure jump, the cell density increases in the centre of the spheroid but does not change appreciably close to the surface of the spheroid. This result can be explained if the cells are polarized which we show to be the case. Motivated by the experimental resu...
ریخت شناسی دانه گرده و ساختار اگزین 7 گونه از شاتره با استفاده از میکروسکوپ نوری و الکترونی (نگاره) مورد بررسی قرار گرفت. دانه های گرده 7 گونه مورد بررسی از نوع porate و دارای بیرون زدگی هایی در محل annul بود. این دانه ها واجد 6 تا 12 منفذ و با اشکالی متفاوت از oblate spheroid و prolate spheroid تا euprolate بودند. نتایج این بررسی موید آنست که صفات گرده شناسی گونه های fumaria صفات افتراقی من...
The cytotoxic activity of Adriamycin was examined in the MGHU1 human bladder carcinoma line, grown as monolayer culture, as spheroids, and as xenografts in immune-deprived mice. The MGH-U1 cells grown as spheroids were much more resistant to Adriamycin (concentration of drug resulting in 37% cell survival, 4.5 fig/m\) than when treated as monolayer cultures (concentra tion of drug resulting in ...
The cytotoxic activity of Adriamycin was examined in the MGH-U1 human bladder carcinoma line, grown as monolayer culture, as spheroids, and as xenografts in immune-deprived mice. The MGH-U1 cells grown as spheroids were much more resistant to Adriamycin (concentration of drug resulting in 37% cell survival, 4.5 micrograms/ml) than when treated as monolayer cultures (concentration of drug result...
Evolution of resonant frequencies and modes as dependent on the aspect ratio is considered in a dielectric high index spheroid. Because rotational symmetry spheroid solutions are separated by azimuthal $m$. By two-parametric variation refractive we achieve exceptional points at which coalesced sector $m=0$.
Low-frequency dielectric response of charged oblate spheroidal particles immersed in an electrolyte.
We study the low-frequency polarization response of a surface-charged oblate spheroidal particle immersed in an electrolyte solution. Because the charged spheroid attracts counterions which form the electric double layer around the particle, using usual boundary conditions at the interface between the particle and electrolyte can be quite complicated and challenging. Hence, we generalize Fixman...
PURPOSE Glioblastoma spheroid cultures are enriched in tumor stem-like cells and therefore may be more representative of the respective primary tumors than conventional monolayer cultures. We exploited the glioma spheroid culture model to find novel tumor-relevant genes. EXPERIMENTAL DESIGN We carried out array-based comparative genomic hybridization of spheroid cultures derived from 20 gliob...
An ongoing challenge in biomedical research is the search for simple, yet robust assays using 3D cell cultures for toxicity screening. This study addresses that challenge with a novel spheroid assay, wherein spheroids, formed by magnetic 3D bioprinting, contract immediately as cells rearrange and compact the spheroid in relation to viability and cytoskeletal organization. Thus, spheroid size ca...
Models of our galaxy based on dynamical observations predict a spheroid component much heavier than accounted for by direct measurements of star counts and high velocity stars. If, as first suggested by Caldwell and Ostriker, this discrepancy is due to a large population of faint low-mass stars or dark objects in the spheroid, the spheroid could be responsible for microlensing events for source...
A technique has been developed which takes advantage of the spherical symmetry of EMT6/Ro multicellular tumor sphe roids to isolate subpopulations of cells originating from various locations in the spheroid structure. The method involves gently exposing spheroids to a dilute trypsin solution at 18 to 20°in specially designed dishes on a rotary shaker. Under these conditions, cells are released...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید