An open capillary channel is a structure that establishes a liquid flow path when the capillary pressure caused by surface tension forces dominates in comparison to the hydrostatic pressure induced by gravitational or residual accelerations. To maintain a steady flow through the channel the capillary pressure of the free surface has to balance the pressure difference between the liquid and the ...

We have modeled the dynamics of a 3-D system consisting of red blood cells (RBCs), plasma and capillary walls using a discrete-particle approach. The blood cells and capillary walls are composed of a mesh of particles interacting with harmonic forces between nearest neighbors. We employ classical mechanics to mimic the elastic properties of RBCs with a biconcave disk composed of a mesh of sprin...

Platelet activity usually inversely correlates with serum albumin levels (e.g., in course of remission or relapse), and it is potentially reversible by adding albumin in vitro or following albumin infusions. Furthermore, many other important hemostatic proteins of similar size are also pathologically excreted in the urine. The loss of antithrombotic factors in the urine is counterbalanced by an...

Background Esophageal multichannel intraluminal impedance-pH monitoring has become one of the preferred tests to correlate observed reflux-like behaviors with esophageal reflux events. The Gastroesophageal reflux disease Assessment Symptom Questionnaire is a validated tool used to distinguish infants with gastroesophageal reflux disease from healthy children. The aim of this study was to determ...

Correspondence to: Dr N Archibald Clinical Ageing Research Unit, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne NE4 5PL, UK; [email protected] A 77-year-old man, with a long history of idiopathic Parkinson’s disease, was reviewed in the movement disorder clinic of the James Cook University Hospital. He had first presented to the neurological services 17 years p...

CFBs are widely used in the chemical, mineral, environmental and energy process industries. Several authors stressed the need for a clear identification of the different operation regimes in the riser of a CFB, to ensure a better comprehension of the hydrodynamic context, and thus better define the operation and design parameters.. First approaches to develop a "work map" of the riser operation...

Psychological research suggests that trying to avoid a negative outcome and trying to attain a positive outcome have different effects on performance (Higgins, 1997). We explored this prospect by examining free throw performance among NBA basketball players at the ends of games when the player’s team was ahead or behind in a clutch situation. Players tended to shoot worse than their career aver...

We investigate the problem of providing a fair bandwidth allocation to each of flows that share the outgoing link of a congested router. The buffer at the outgoing link is a simple FIFO, shared by packets belonging to the flows. We devise a simple packet dropping scheme, called CHOKe, that discriminates against the flows which submit more packets/sec than is allowed by their fair share. By doin...