In this study, we investigated the depth-dependent metabolic and structural responses of adult articular cartilage to large-strain, static, unconfined compression. Changes in cell biosynthetic activity and several morphometry-based structural parameters (cell density, cell volume fraction, cell surface-area density, mean cell surface area, and mean cell volume) were measured at eight sites repr...

T HE SURFACE CHARGE OF MAMMALIAN CELLS is considered to be one of several factors determining the balance between attractive and repulsive forces that operate between the cell periphery and other surfaces of potential contact.1’2 The surface-charge density of the leukocyte may be important in determining surface characteristics such as adhesiveness, deformability, and pseudopod formation. Varia...

The purpose of this study was to correlate test bolus (TB) parameters and patient information and cardiac function with main bolus (MB) contrast density for 64-slice computed tomography, and to evaluate MB contrast density on a fixed injection rate, in comparison with an injection rate adjusted with TB parameters and patient information. A total of 256 patients underwent coronary CT angiography...

The high-frequency performance of the reflector antennas is mainly limited by the surface. It has been shown that distortions on different regions of the reflector surface can have different effects on the radiation performance. In other words, degradation of the radiation pattern due to the presence of surface distortions is sensitive to the location and behavior of the surface distortion prof...

T HE SURFACE CHARGE OF MAMMALIAN CELLS is considered to be one of several factors determining the balance between attractive and repulsive forces that operate between the cell periphery and other surfaces of potential contact.1’2 The surface-charge density of the leukocyte may be important in determining surface characteristics such as adhesiveness, deformability, and pseudopod formation. Varia...

T HE SURFACE CHARGE OF MAMMALIAN CELLS is considered to be one of several factors determining the balance between attractive and repulsive forces that operate between the cell periphery and other surfaces of potential contact.1’2 The surface-charge density of the leukocyte may be important in determining surface characteristics such as adhesiveness, deformability, and pseudopod formation. Varia...

T HE SURFACE CHARGE OF MAMMALIAN CELLS is considered to be one of several factors determining the balance between attractive and repulsive forces that operate between the cell periphery and other surfaces of potential contact.1’2 The surface-charge density of the leukocyte may be important in determining surface characteristics such as adhesiveness, deformability, and pseudopod formation. Varia...

Numerical simulations of the interiors of radiation dominated accretion disks show that significant density inhomogeneities can be generated in the gas. Here, we present the first results of our study on X-ray reflection spectra from such heterogeneous density structures. We consider two cases: first, we produce a number of toy models where a sharp increase or decrease in density of variable wi...

High-resolution temporal observations performed with the SUMER spectrometer on SoHO provide an opportunity to investigate the electron density variations in thèquiet Sun' solar transition region due to UV transient events. Two datasets obtained in the density sensitive lines belonging to the O iv 1400 A multiplet were searched for such events, leading to the identiication of two explosive event...