A 35 year old man presented with a two day history of a tender rash on the right thigh. Examination showed serpiginous erythema extending from a vesiculopustule on his right thigh. Staphylococcus aureus was identified in a culture of the vesiculopustular fluid. The diagnosis of lymphangitis spreading from folliculitis was made. The patient was successfully treated with oral ampicillin. Learning...

Transport of solutes through channels with rough boundaries is abundant in natural and engineered settings. However, it not known currently what the consequences an abruptly alternating boundary are for solute dispersion, particular when advected by inertial fluid flow. To investigate this, we compute numerically time-asymptotic longitudinal dispersion coefficient a passive flow two-dimensional...

Soil creep is the most widespread and perhaps the least understood process of erosion on soil-mantled hillslopes. Soil is slowly ‘‘stirred’’ by burrowing creatures, and particles are displaced in wetting-drying cycles. These actions can cause downslope creep by processes analogous to particle diffusion. Other possible transport mechanisms include shear and viscous-like creep, such that precise ...

Thermal barrier coating systems are used on top of highly stressed components in gas turbines to protect the nickel-based substrates. A well-established thermal barrier coating system consist of the bond-coat (BC) and the thermal barrier coating (TBC). A third layer is grown during service: the thermally grown oxide (TGO) between the BC and the TBC. The coatings fail in service because of diffe...

tonia solani Kühn) and red thread [caused by Laetisaria fuciformis (McAlpine) Burdsall] (Beard, 1973; Brilman, Bentgrass species (Agrostis spp.) are cool season turfgrasses that 2001a). However, some cultivars of colonial bentgrass are tolerant of continuous, close mowing heights because of their prostrate growth habit. Some bentgrass species are difficult to distinare beginning to show improve...

By combining optical tweezers with polarization microscopy, the hydrodynamic coupling between position and orientation fluctuations in a pair of colloidal spheres has been measured. Imaging of birefringent particles under crossed polarizers allows for the simultaneous determination of the positions and orientations of both particles. The temporal cross-correlation function between random displa...

A finite-volume method is applied to the numerical simulation of flows of viscoelastic fluids in the benchmark confined-cylinder problem under creeping flow conditions. The fluids are modeled using the Oldroyd-B constitutive equation, the calculation of the polymer stress contribution is carried out using the logconformation methodology [1] and the results are compared with data using the stand...