The (1,1,1)-surfaces of bulk solid molecular hydrogen have been studied at temperatures between 0.5K and 1.3K, using path integral Monte Carlo. A general method is introduced for constructing an external potential to represent the tail correction for an arbitrary heterogeneous layered bulk substrate-adsorbate system. We compute density pro les parallel and perpendicular to the free H 2 surface,...

Surface antigen switching in Giardia lamblia was analyzed using monoclonal antibodies specific for two variant-specific surface proteins (VSPs). Two VSPs were detected on the surface of single trophozoites. Dual expression persisted for 13 h but disappeared at 36 h, as in other parasites that undergo surface antigenic variation.

Based on experiments and 3D simulations, we show that a soft elastic film during adhesion and debonding from a rigid flat surface undergoes morphological transitions to pillars, labyrinths, and cavities, all of which have the same lateral pattern length scale, lambda close to lambda/H approximately 3 for thick films, H > 1 microm . The linear stability analysis and experiments show a new thin f...

The gas separation performance of commercial ceramic Titania and hybrid silica (HybSi®) membranes was assessed using the gas permeation and permporometry methods. Results indicated that the HybSi® membranes have a hybrid surface containing regions covered by a polymeric matrix and others with inorganic pores. These membranes have high H2 selectivity, which incre...

A method for producing high surface area nano-sized mesoporous alumina from inexpensive Iranian kaolin as raw material is proposed. In this method, first, kaolin was purified for purifying Kaolin, High Grade Magnetic Separation and leaching with HCl and chemical bleaching treatment by using sodium dithionite (Na 2 S 2O4 ) as reducing agent in acidic media (H 2SO 4 ) were used. Pur...

The role of frameworks in information systems has recently received a great deal of critical attention. One prominent indictment, which has been directed at even commonly accepted frameworks, is that they lack empirical support, and in fact are not constructed in operational terminology. This article reports the results of an experimental lab study using MBA students as subjects to investigate ...

To solve problems of compliance, an institutional trigger mechanism is often used. This paper develops a model of two trigger mechanisms and derives conditions where the two institutions may complement one another to improve utility and compliance. When the conditions for optimality do not hold, small changes in institutional structure may create lumpy changes in behavior. Also, the paper explo...

T. Baehr-Jones,* M. Hochberg, Richard Soref, and A. Scherer Department of Applied Physics, California Institute of Technology, 1200 E California Boulevard, Pasadena, California 91125 Air Force Research Laboratory Sensors Directorate, Electromagnetic Technology Division, 80 Scott Drive, Hanscom Air Force Base, Bedford, Massachusetts 01731-2909 E-mail: [email protected] *Corresponding author: ...

Dred Scott, without doubt, is the most controversial case in the history of the United States Supreme Court. Unlike the controversies that surround other decisions of the Court, the controversy surrounding Dred Scott does not turn on if the outcome or Chief Justice Taney’s analysis was wrong, but rather on why the outcome and Chief Justice Taney’s analysis were wrong. This article focuses on th...

Obesity and pronated foot type may increase the risk of chronic plantar heel pain: a matched Title: case-control study