The connective-tissue sheath surrounding the nervous system of Periplaneta americana consists of two layers, the neural lamella and the sheath cells beneath it. The neural lamella is composed of a collagen-type protein and neutral muco-polysaccharide. The sheath cells possess numerous lipochondria and mitochondria; the former consist of phospholipid and some cerebroside. The cytoplasm of the sh...

The complex blood flow patterns occurring in a trout secondary lamella were computed from a theoretical electrical model consisting of a two-dimensional array of unitary resistances representing the blood channels of the lamella. Estimates of oxygen uptake from water to blood were made by means of the standard conductance equations for oxygen and values from the literature for blood and water P...

In the past years, lamella settlers have been used as devices for treatment by sedimentation also for storm water. Instead of just equipping a sedimentation basin with numerous lamella modules, an innovative approach for traditional separate systems is proposed. Basically, storm water is stored in a basin or tank during a rain event, while treatment is done in a small but continuously operated ...

—DNA barcodes provided the first clue to Venada lamella Burns, new species. This is the fifth species of the panneotropical but formerly monotypic genus Venada to be discovered on Volcán Cacao, a small volcano in Area de Conservación Guanacaste (ACG) in northwestern Costa Rica. Two adult females of this skipper butterfly were reared from caterpillars feeding on a species of Ocotea (Lauraceae). ...

BACKGROUND/AIMS Reconstruction of large full thickness upper lid defects that cannot be closed directly often rely on utilising the lower lid. An example is the Cutler Beard procedure. A one stage technique for repair of large horizontal upper lid defects utilising local posterior and anterior lamella advancement flaps is described and the results reported. METHOD Eight cases with upper lid d...

After impact onto a smooth dry surface, a drop of viscous liquid initially spreads in the form of a thick lamella. If the drop splashes, it first emits a thin fluid sheet that can ultimately break up into droplets causing the splash. Ambient gas is crucial for creating this thin sheet. The time for sheet ejection, t{ejt}, depends on impact velocity, liquid viscosity, gas pressure, and molecular...

The paper outlines a method to determine the sedimentation efficiency in modernized tanks with incorporated lamella packets. The method takes into account the properties of the suspension (density, viscosity, solid phase distribution) and tank design parameters – flow intensity and settling surface. Several types of grain size distributions are considered: the log-normal distribution and genera...

Two soluble nucleating agents were used to modify the optical properties of nine PP homo- and random copolymers. The ethylene content of the polymers changed between 0 and 5.3 wt %. Chain regularity was characterized by the stepwise isothermal segregation technique (SIST), while optical properties by the measurement of the haze of injection molded samples. Crystallization and melting characteri...