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Certain types of implanted medical devices depend on oxygen supplied from surrounding tissues for their function. However, there is a concern that the tissue associated with the foreign body response to implants may become impermeable to oxygen over the long term and render the implant nonfunctional. We report oxygen flux recordings from electrochemical oxygen sensor devices with wireless telemetr
An implantable sensor capable of long-term monitoring of tissue glucose concentrations by wireless telemetry has been developed for eventual application in people with diabetes. The sensor telemetry system functioned continuously while implanted in subcutaneous tissues of two pigs for a total of 222 and 520 days, respectively, with each animal in both nondiabetic and diabetic states. The sensor de
The ability to rapidly detect cell free circulating (cfc) DNA and other nanoparticulate disease biomarkers directly in blood is a major challenge for nanomedicine. We now show that AC Electrokinetic (ACE) microelectrode array devices can be used to rapidly isolate and detect cfc-DNA nanoparticulates directly from whole blood and other high conductance samples (plasma, serum etc.). The device shows
In this paper, we present and discuss the methodology to monitor average residual stresses in aged high temperature unidirectional and woven graphite fiber/PMR-15 composites. The aging experiments were performed at 315 °C for 1170 h in nitrogen and 1064 h in air, respectively. The proposed methodology was based on X-ray diffraction (XRD) strain measurements in embedded crystalline metallic inclusi
An overview is given of the most important characteristics of the brittle fracture process. In addition, several experimental techniques are suggested for the simulation of brittle fracture under laboratory conditions.
A review of several typical enhanced heat transfer tubes such as corrugated tube, transversally corrugated tube, twisted tube and spiral fluted tube, is carried out. Compared with smooth wall tube, these enhanced tubes have higher heat exchange capacity and better anti - fouling ability. Besides, the heat transfer efficiency can be promoted to a higher level if the objects that can disturb flow ar
A novel atmospheric pressure non-thermal plasma, i.e., rotating gliding arc (RGA), is developed to upgrade coal bed methane (CBM) into hydrogen and carbon aerosol simultaneously. CH4 is used as a CBM surrogate. In present work, the V-I characteristics of RGA discharge in CH4 conversion are monitored with different gases (N2, Ar and CO2) as carrier gas, while the active species (such as OH, CH, CN,
Scholarship on branding has made important contributions in terms of the value-creating function of branding. However, previous literature has overemphasized the creation of value for organizations at the expense of an understanding of the destructive side of branding for organizations and society. Drawing on the work of Boltanski and Thevénot, we theorize value as different in separate ‘worlds of
De protestantiska kyrkorna liksom kyrkorna i Östeuropa uppmuntrar präster att ingå äktenskap. Att den katolska kyrkan håller fast vid celibatet har en disciplinär funktion. I artikeln ges historiska perspektiv på prästcelibatet, kritiken mot detta och motiven för dess bibehållande.
Om Stora stöten i Falun
Det arkeologiska perspektivets tidsdjup ger kunskap om förändringar av människans livsval. De arkeologiska föremålen betraktas som ett slags tidsmarkörer som materialiserar en tids idéer om formgivning, tillverkning och konsumtion av produkter och hur dessa kan ingå i en föreställningsvärld om tid. Vår egen tids föreställning om tid påverkar ytligt tolkningen av forntida material.
Routine endomyocardial biopsy (EMB) to detect acute cellular rejection (ACR) late (>1 year) after heart transplantation (HT) remains debated. To gain knowledge on late ACR and thereby approach this issue, we studied the incidence, predictors, and outcome of late ACR. 815 late EMBs from 183 patients transplanted 1988-2010 were retrospectively reviewed until June 30, 2012. Only 4.4% of the routine a
