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The typical balance between Th17 and Treg T cell subsets is altered in various autoimmune diseases. Here, inflammatory markers in patients with acute exacerbation of chronic obstructive pulmonary disease (COPD) (n=32) and stable COPD (n=36) were compared with smokers with normal lung function (n=40, control group). Flow cytometry was used to detect(More)
Small-angle neutron scattering (SANS) was used to investigate the interparticle interactions in concentrated dispersions of colloidal silica stabilized either by steric or by electrostatic repulsive interactions. In 10 mM NaCl, an adsorbed PEO layer is required to prevent flocculation, and particles are stabilized by steric repulsions. The adsorbed layer(More)
Modern database applications are among the most widely used and complex software systems. They constantly evolve, responding to changes to data, database schemas, and code. It is challenging to manage these changes and ensure that everything co-evolves consistently. For example, when a database schema is modified, all the code that interacts with the(More)
Many existing exoskeletons have followed a similar design approach: a rigid kinematic chain is actuated to mobilize a human wearer. However, in a clinical setting for rehabilitation where one exoskeleton is shared by multiple patients, it will be difficult to guarantee on-site adjustments can make the rigid exoskeleton fit each patient kinematically(More)
Core-shell particles with cross-linked core and shell were used as seed particles to produce composite Janus particles. It was found that when the shell has distinctly higher cross-linking degree than the core, Janus particles with very unusual structures can be obtained. These particles have two parts, with one part embraced partially or entirely by the(More)
Most existing exoskeletons have followed a similar design approach using articulated rigid links, despite the applications of strength augmentation or rehabilitation, which may have very different specifications. In order to address the urge for ergonomics in wearable assistive exoskeletons for rehabilitation, this paper proposed a design alternative using(More)
Services are highly reusable, flexible and loosely coupled, which makes the evolution and the maintenance of composite services more complex. Evolution of BPEL composite service covers changes of processes, bindings and interfaces. In this paper, an approach is proposed to select and generate test cases during the evolution of BPEL composite service. The(More)