Plasma fractionation by dead-end membrane filtration: effects of membrane properties and plasma flux.

abstract：:A theory for the rheological behavior and fluid flux in swelling tissues under small deformations is presented. Tissues are considered as bicomponent solid-fluid mixtures. Concentration effects are included. The driving forces (body, surface and interactive), are discussed and their constitutive relationships to the t...

journal_title：Biorheology

authors： Lanir Y

更新日期：1987-01-01 00:00:00

abstract：:The assessment of vessel patency can be substantially improved by serial microvessel diameter measurements taken successively along an extensive length of the vessel. It is possible to avoid making the a priori assumptions about the existence or location of local constriction sites implicit in single diameter measurem...

journal_title：Biorheology

authors： Miles FP,Nuttall AL

更新日期：1991-01-01 00:00:00

abstract：:In normal male rabbits loaded dietary cholesterol, intravital-microscopy revealed a marked acceleration of intravascular adhesiveness of white blood cells and aggregability of red blood cells and a swarming of lipid-laden macrophages in connective tissue space concurrently with a systemic hyperlipidemia and anemia. Po...

journal_title：Biorheology

authors： Asano M,Ohkubo C,Hirokawa A,Sasaki A,Tochihara Y,Chiba Y

更新日期：1988-01-01 00:00:00

abstract：:The literature review about the shear linear properties of brain tissue reveals both a large discrepancy in the existing data and a crucial lack of information at high frequencies associated with traffic road and non-penetrating ballistic impacts. The purpose of this study is to clarify and to complement the linear ma...

journal_title：Biorheology

authors： Nicolle S,Lounis M,Willinger R,Palierne JF

更新日期：2005-01-01 00:00:00

abstract：:The biorheological properties and behavior of red blood cells (RBCs), as other types of cells, have a biochemical and molecular basis. The shape maintenance and deformability of RBCs depend on the structural and functional integrity of the membrane proteins. These proteins are composed of transmembrane proteins insert...

journal_title：Biorheology

authors： Chien S,Sung LP

更新日期：1990-01-01 00:00:00

abstract：:The membrane shear elastic modulus (mu) and the time constant for extensional shape recovery (tc) were measured for normal, control human red blood cells (RBC) and for RBC heat treated (HT) at 48 degrees C. Three separate methods for the measurement of mu were compared (two used a micropipette and one employed a flow ...

journal_title：Biorheology

authors： Nash GB,Meiselman HJ

更新日期：1985-01-01 00:00:00

abstract：:Arterial hemodynamic forces may play a role in the localization of early atherosclerotic lesions. We have been developing numerical techniques based on overset or "Chimera" type formulations to solve the Navier-Stokes equations in complex geometries simulating arterial bifurcations. This paper presents three-dimension...

journal_title：Biorheology

authors： Cheer AY,Dwyer HA,Barakat AI,Sy E,Bice M

更新日期：1998-11-01 00:00:00

abstract：:Hematocrit distribution and red blood cell aggregation are the major determinants of blood flow in narrow tubes at low flow rates. It has been observed experimentally that in microcirculation the hematocrit distribution is not uniform. This nonuniformity may result from plasma skimming and cell screening effects and a...

journal_title：Biorheology

authors： Das B,Johnson PC,Popel AS

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND:Blood flow in stenotic vessels strongly influences the progression of vascular diseases. Plaques in stenotic blood vessels vary in stiffness, which influences plaque behavior and deformation by pressure and flow. Concurrent changes in plaque geometry can, in turn, affect blood flow conditions. Thus, simultan...

journal_title：Biorheology

authors： Shimizu Y,Ohta M

更新日期：2015-01-01 00:00:00

abstract：:The maintenance of articular cartilage integrity requires a balance between anabolic and catabolic processes which are under the control of chondrocytes. These cells are living in an anaerobic environment and normally do not divide. They are responsible for the continuous maintenance of the cartilage extracellular mat...

journal_title：Biorheology

authors： Pujol JP,Felisaz N,Boumediene K,Ghayor C,Herrouin JF,Bogdanowicz P,Galera P

更新日期：2000-01-01 00:00:00

abstract：:Blood vessels are always subjected to hemodynamic stresses including blood pressure and blood flow. The cerebral artery is particularly sensitive to hemodynamic stresses such as pressure and stretch, and shows contractions that are myogenic in nature; i.e., the mechanical response is generated by the vascular smooth m...

journal_title：Biorheology

authors： Nakayama K,Obara K,Tanabe Y,Saito M,Ishikawa T,Nishizawa S

更新日期：2003-01-01 00:00:00

abstract：:Flow-induced changes in the red cell microstructure of human blood are identified from mechanical and optical evidence. On initiation of steady flow, a new microstructure develops as the shear strain increases through unit strain. This structure is identified with the formation of layers of red cells that slide on pla...

journal_title：Biorheology

authors： Thurston GB

更新日期：1994-03-01 00:00:00

abstract：:Over the past several decades, blood-soluble drag reducing polymers (DRPs) have been shown to significantly enhance hemodynamics in various animal models when added to blood at nanomolar concentrations. In the present study, the effects of the DRPs on blood circulation were tested in anesthetized rats exposed to acute...

journal_title：Biorheology

authors： Kameneva MV,Wu ZJ,Uraysh A,Repko B,Litwak KN,Billiar TR,Fink MP,Simmons RL,Griffith BP,Borovetz HS

更新日期：2004-01-01 00:00:00

abstract：:A non-linear elastic model taking into account the microscopic structure of biological soft tissues is briefly presented and extended to quasi linear viscoelasticity. The modelling of the rheological behavior for near zero stress values is then discussed. ...

journal_title：Biorheology

authors： Flaud P,Quemada D

更新日期：1988-01-01 00:00:00

abstract：:In micropipette experiments with small capillaries and moderate high pressure difference (approximately 1000 Pa) cell fragmentation (fission) of human red blood cells without hemolysis was observed by TV-system for a large number of fresh red blood cells of different donors. After separation, the fragment moves away f...

journal_title：Biorheology

authors： Meier W,Lerche D,Wendt MO,Paulitschke M

更新日期：1987-01-01 00:00:00

abstract：:We have previously observed a stimulatory effect of fluid shear stress on the regeneration of cultured endothelial cell layers after mechanical denudation. In this study we examined how fluid shear stress affects endothelial cell DNA synthesis during regeneration. Following mechanical denudation of narrow linear areas...

journal_title：Biorheology

authors： Ando J,Komatsuda T,Ishikawa C,Kamiya A

更新日期：1990-01-01 00:00:00

abstract：BACKGROUND:Osteoarthritis is a common, localized joint disease that causes pain, stiffness and reduced mobility. Osteoarthritis is particularly common in the knees. The effects of osteoarthritis on the rheology of synovial fluid in the knees are not fully understood and consequently require further study. OBJECTIVE:Th...

journal_title：Biorheology

authors： Madkhali A,Chernos M,Grecov D,Kwok E

更新日期：2016-11-09 00:00:00

abstract：:A number of risk factors including biomechanical stress on the articular cartilage imposed by joint overloading due to obesity, repetitive damage of the joint tissues by injury of the menisci and ligaments, and abnormal joint alignment play a significant role in the onset of osteoarthritis (OA). Genetic predisposition...

journal_title：Biorheology

authors： Ray A,Ray BK

更新日期：2008-01-01 00:00:00

abstract：BACKGROUND:In order to play different roles in vascular functions as a mechanosensor to blood flows and as a barrier to transvascular exchange, the endothelial surface glycocalyx (ESG) should have an organized structure. Due to the limitations of optical and electron microscopy, the ultra-structure of ESG has not been ...

journal_title：Biorheology

authors： Fan J,Sun Y,Xia Y,Tarbell JM,Fu BM

更新日期：2019-01-01 00:00:00

abstract：BACKGROUND:Leukocytes and platelets typically fulfil their functions through adhesion to the walls of vessels with different size, haematocrit and shear rate. OBJECTIVE:We aimed to investigate differential effects of these variables on leukocyte and platelet adhesion. METHODS:Blood with varying haematocrit was perfus...

journal_title：Biorheology

authors： Watts T,Barigou M,Nash GB

更新日期：2015-01-01 00:00:00

abstract：:Through cardiac looping during embryonic development, human and other vertebrate hearts adopt sinuous curvatures with marked changes in direction of flow at atrial, ventricular and arterial levels. We used magnetic resonance phase velocity mapping to study flow through the hearts of resting volunteers, and Doppler ult...

journal_title：Biorheology

authors： Kilner PJ,Yang GZ,Firmin DN

更新日期：2002-01-01 00:00:00

abstract：:Ciliary metachronism and motility were examined optically in muco-ciliary tissue cultures from three different systems: a) frog's palate epithelium, b) frog's oesophagus, and c) human nasal polyps. In addition, lateral cilia of Mytilus edulis (water transporting cilia) were examined. It was revealed that the degree of...

journal_title：Biorheology

authors： Gheber L,Priel Z

更新日期：1990-01-01 00:00:00

abstract：:This study examined the effects of mechanical compression on engineered cartilage in a novel hybrid culture system. Cylindrical holes were cut in discs of bovine articular cartilage and filled with agarose gels containing chondrocytes. These constructs were compressed in radiolabeled medium under static or oscillatory...

journal_title：Biorheology

authors： Hunter CJ,Levenston ME

更新日期：2002-01-01 00:00:00

abstract：BACKGROUND:Biological cells exhibit complex mechanical properties which determine their responses to applied force. OBJECTIVE:We developed an optical method to probe the temporal evolution of power-law rheology of single cells. METHODS:The method consisted in applying optically a constant mechanical torque to a biref...

journal_title：Biorheology

authors： de Saint Vincent MR

更新日期：2016-05-26 00:00:00

abstract：:Stress relaxation regimes arising in a muscle subject to stepwise deformation are described on the basis of a recent phenomenological model of fully activated muscle tissue which is presented in the form of a second-order constitutive equation. It is shown that this model reproduces the qualitative form of relaxation ...

journal_title：Biorheology

authors： Timanin EM

更新日期：1984-01-01 00:00:00

abstract：:The erythrocytes sedimentation profiles (ESP) of normal blood and of blood mixed with saline, albumin (7%), and various molecular weight dextrans of different concentrations, at various height and widths of the sample holder are determined. These observations show that the sedimentation characteristics of the erythroc...

journal_title：Biorheology

authors： Singh M,Joseph KP

更新日期：1987-01-01 00:00:00

abstract：:The role of clustered of L-selectin receptors on the leukocyte surface is discussed in connection with the postulated velocity-dependent formation of selectin-ligand tether bonds to interpret the mechanism of leukocyte tethering to, and rolling along, the vascular endothelium. The distinct feature of this step-wise pr...

journal_title：Biorheology

authors： Riha P,Dumas D,Latger V,Muller S,Stoltz JF

更新日期：2003-01-01 00:00:00

abstract：:Under some conditions, such as inhalation injury, an array of longitudinal channels without cilia may be formed on the epithelial surface, affecting mucus transport in the lung during coughing. Moreover, in certain cases of the diseased state of the lung, immotile cilia remain embedded in the serous fluid and may form...

journal_title：Biorheology

authors： Agarwal M,King M,Shukla JB

更新日期：1994-01-01 00:00:00

abstract：:The goal of this study was to determine the duration of time that ligaments from a study group need to be loaded in order to adequately determine their collective viscoelastic behavior. Rat ligaments were subjected either to creep or stress relaxation for 1,000 s or stress relaxation for 10,000 s to compare estimates ...

journal_title：Biorheology

authors： Manley E Jr,Provenzano PP,Heisey D,Lakes R,Vanderby R Jr

更新日期：2003-01-01 00:00:00

abstract：:A generalized dispersion model is used to obtain exact solution for unsteady convective diffusion in the presence of couple stresses. The effect of the couple stress parameter 'a' on the most dominant dispersion coefficient is clearly depicted. The dimensionless mean concentration distribution is obtained as a functio...

journal_title：Biorheology

authors： Rudraiah N,Pal D,Siddheshwar PG

更新日期：1986-01-01 00:00:00