Two hydrostatic factors such as acute hypertension and decompressive craniectomy were chosen and assessment was focused on how the hydrostatic pressure gradient altered the cerebrovascular dynamics and metabolism during the process of development of brain oedema. Hydrostatic oedema was induced by bolus injection of autologous blood through the common carotid artery in Sprague-Dawley rats. Rats ...

The threshold hydrostatic pressure necessary to produce pulmonary edema may be lowered by a decrease in plasma colloid oncotic pressure (COP) or an increase in capillary permeability. Sepsis is thought to increase capillary permeability. The object of this report was to assess the effect of sepsis on threshold hydrostatic pressure. In five adult male baboons a Foley catheter was inserted into t...

Effective protocols are introduced for parthenogenesis activation in oocytes. Hydrostatic pressure can act as a mechanical stimulator that rearranges egg contents, leading to new structural or molecular combination. Alternatively, mechanical stimulation could stimulate a mechanically-gated process, such as opening or closing of stretch activated ion channels. This study, investigated the use of...

The theoretical balance (Longuet-Higgins and Stewart, 1961) between cross-shore gradients of the mean water level and the wave radiation stress is being evaluated using observations of wave-driven setup. Setup observations were acquired during the SandyDuck experiment from Sept. through Nov. 1997 on a sandy Atlantic Ocean beach near Duck, NC. Bottom pressure was measured with 12 buried pressure...

The hydraulic conductivity of the membranes surrounding the giant axon of the squid, Dosidicus gigas, was measured. In some axons the axoplasm was partially removed by suction. Perfusion was then established by insertion of a second pipette. In other axons the axoplasm was left intact and only one pipette was inserted. In both groups hydrostatic pressure was applied by means of a water column i...

This paper presents a new particle migration principle and demonstrates an analysis of solution density in a microfluidic channel. A particle situated in a microfluidic interface with different fluid density moves toward the lower-density fluid, driven by the asymmetric hydrostatic pressure acting on the submerged particle. Since the hydrostatic pressure is related to the diameter of a particle...

Thermal strains and electromigration can cause voids to grow in conductor lines on semiconductor chips. This long-standing failure mode is exacerbated by the recent introduction of low-permittivity dielectrics. We describe a method to calculate the volume of a saturated void VSV , attained in a steady state when each point in a conductor line is in a state of hydrostatic pressure, and the gradi...