PURPOSE : To explore the possible mechanisms that may lead to overnight contact lens-associated corneal morbidity by examining data from several corneal epithelial permeability experiments obtained under different environmental and lens fitting paradigms. METHODS : Epithelial permeability was assessed by using fluorometry to determine the fluorescein penetration rate from the tear film into t...

We examined the impact of chronic stress on rat growth rate and intestinal epithelial physiology and the role of mast cells in these responses. Mast cell-deficient (Ws/Ws) rats and +/+ littermate controls were submitted to water avoidance stress or sham stress, 1 h/day, for 5 days. Seven hours after the last sham or stress session, jejunal segments were mounted in Ussing chambers, in which secr...

Landscape fragmentation is a major threat to a lot of wildlife species with a large spatial activity range. To ease the migration through the landscape, a lot of different measurements can be implemented. Though, due to limited resources, these should be placed where they are most effective. The simulation framework SimapD presented in this paper is capable of assessing the network permeability...

The determination of permeability in heterogeneous and anisotropic reservoirs is a complex problem, because core samples and well test data are usually only available for limited number of wells. This paper presents hydraulic flow units and flow zone indicator for predicting permeability of rock mass from core and well log-data. The concept is applied to some uncored wells/intervals to predict ...

In a prospective longitudinal adult study, vascular nitric oxide bioavailability measured as reactive hyperemia index was significantly higher at enrollment in patients who developed dengue hemorrhagic fever (DHF) (n = 11), compared with the non-DHF group (n = 63) and those with other febrile illnesses (n = 25) (P = .01). After adjustment for age, fever day, and body mass index, enrollment reac...

We have designed, produced, and experimentally characterized 2.7 mm thick composite panels having negative refractive index between 8.4 and 9.2 GHz. The composite metamaterial is fabricated using conventional commercial multilayer circuit-board lithography; three-dimensional physical (as opposed to electromagnetic) structure is introduced by the use of vias to form sections of the scattering el...

Guanine nucleotides have been reported to stimulate reticular Ca2+ release. By using the structure-linked latency of microsomal mannose-6-phosphate phosphatase as an index of microsomal permeability [Arion, Ballas, Lange & Wallin (1976) J. Biol. Chem. 251, 4901-4907], the effects of GTP on Ca2+ release and membrane permeability were compared in liver microsomes. In a stripped rough-microsome pr...

OBJECTIVES To evaluate the diagnostic value of plasma protein levels for pulmonary vascular permeability and acute respiratory distress syndrome. During acute lung injury and acute respiratory distress syndrome, increased vascular permeability induces protein-rich fluid extravasation. We hypothesized that plasma protein levels predict increased vascular permeability and acute respiratory distre...

The thermal effect can significantly influence the consolidation of soil, especially in cold region. Previous studies have established to research that drops ambient temperature would slow down process, resulting dissipation excess pore water pressure. In addition, previous neglect final settlement because is also influenced by effect. this paper, a closed-form solution one-dimensional nonlinea...