This work describes the formation, perfusion, and maturation of three-dimensional microvascular tubes in vitro. These tubes consisted of confluent monolayers of human endothelial cells that lined open, cylindrical channels within collagen gels. Perivascular cells could be directly embedded within the gels or added after endothelial cells grew to confluence. The tubes spanned the entire 5-7 mm e...

Most safety cases for the deep geological disposal of radioactive waste are reliant on the swelling of bentonite in the engineered barrier system as it saturates with groundwater. Assurance of safety therefore requires effective monitoring of bentonite saturation. The timeand fluid-dependent corrosion of synthetic magnets embedded in bentonite is demonstrated here to provide a novel and passive...

This paper identifies and highlights the significance of Wasta as a barrier to e-government implementation within The Hashemite Kingdom of Jordan and is part of a wider qualitative research study of all barriers. A longitudinal research approach was applied to explore any dynamism within the presence of barriers over a three year study, as well as to seek a richer understanding of such barriers...

With the advent of ALMA, it is now possible to observationally constrain how disks form around deeply embedded protostars. In particular, recent ALMA C3H2 line observations nearby protostar L1527 have been interpreted as evidence for so-called "centrifugal barrier," where protostellar envelope infall gradually decelerated a stop by centrifugal force in region super-Keplerian rotation. To test c...

suppose that $h$ is a subgroup of $g$‎, ‎then $h$ is said to be‎ ‎$s$-permutable in $g$‎, ‎if $h$ permutes with every sylow subgroup of‎ ‎$g$‎. ‎if $hp=ph$ hold for every sylow subgroup $p$ of $g$ with $(|p|‎, ‎|h|)=1$)‎, ‎then $h$ is called an $s$-semipermutable subgroup of $g$‎. ‎in this paper‎, ‎we say that $h$ is partially $s$-embedded in $g$ if‎ ‎$g$ has a normal subgroup $t$ such that $ht...

We construct efficient and accurate numerical algorithms for pricing discretely monitored barrier and Bermudan style options under time-changed Lévy processes by applying the fast Hilbert transform method to the log-asset return dimension and quadrature rule to the dimension of log-activity rate of stochastic time change. Some popular stochastic volatility models, like the Heston model, can be ...

In order to describe frequency-dependent quantum transport properties, it is necessary to take into account local fields. However, since the microscopic charge and current distributions are rapidly varying functions of space and time the solution of Maxwell’s equations is a complex task. Especially in the presence of non–linear effects, a selfconsistent theory of frequency and time dependent tr...

Trans-epithelial electrical resistance (TEER) is broadly used as an experimental readout and a quality control assay for measuring the integrity of epithelial monolayers cultured under static conditions in vitro, however, there is no standard methodology for its application to microfluidic organ-on-a-chip (organ chip) cultures. Here, we describe a new microfluidic organ chip design that contain...

The aim of this work was to investigate whether topical application of synthetic biofilms supports and accelerates the recovery of the murine skin barrier, disrupted by sequential tape stripping. Therefore, various biofilms were applied topically on disrupted mouse skin to determine which formulation could improve barrier function, as was observed previously for the natural biofilm vernix caseo...