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Osseointegration of Titanium Implants in Onlay of Cerament™, a New Ceramic Bone Substitute.

The purpose was to investigate whether a new biphasic and injectable ceramic bone substitute Cerament™ that rapidly remodels to bone, may contribute to the retention of titanium implant screws during the healing period, and to analyze the pattern of bone formation around titanium implants.Titanium screws were implanted in rat tibiae and embedded with or without Cerament™ on the cortical surface. T

Bracing of steel bridges during construction; theory, full-scale tests and simulations

Popular Abstract in English Bracings are structural components that assure the stability of the load bearing structures is maintained so as a desired level of load-carrying capacity of them is achieved. The present study as a whole involves investigations of either the temporary or permanent bracings that are often required during the construction phase of steel bridges. Current knowledge concerniA number of steel bridges have suffered lateral-torsional failure during their construction due to their lacking adequate lateral and/or rotational stiffness. In most cases, slight bracing can be of great benefit to the main girders involved through their controlling out-of-plane deformations and enabling the resistance that is needed to be achieved. The present research concerned the performance

Advancing Upconversion Emissions for Biomedical Imaging

During the past decade, upconverting nanoparticles (UCNPs) doped with rare earth ions have become an important class of fluorescence contrast agents for molecular imaging, due to their unique properties. Their property of anti-Stokes luminescence, with both the excitation and emission wavelengths close to the optimal for biomedical imaging, has been extensively explored in various biomedical appli

Development and validation of the predicted heat strain model

Eight laboratories participated in a concerted research project on the assessment of hot working conditions. The objectives were, among others, to co-ordinate the work of the main European research teams in the field of thermal factors and to improve the methods available to assess the risks of heat disorders at the workplace, and in particular the “Required Sweat Rate” model as presented in Inter

Non Franck-Condon effects in the photoionization of molecular nitrogen to the N+ A 2II state in the 19-34 eV photon energy region.

Photoionization to the N2+ A 2Πu state is studied using photoelectron spectroscopy. Experimentally, vibrational branching ratios for the v′=0–3 levels obtained for the first time in the 20–34 eV region, show strong non Franck–Condon effects around 22 eV. Using ab initio many body perturbation theory, branching ratios for ionization to the A 2Πu state are calculated. This study indicates that the F

Molecular characterization of invasive and non-invasive Streptococcus pyogenes isolates from Romania.

In 2002, the Romanian National Reference Laboratory was invited to join the Strep-EURO project to study invasive Streptococcus pyogenes infections. During 2003 and 2004, a total of 33 isolates recovered from invasive disease were received from eight Romanian counties. For comparison, 102 isolates from non-invasive disease, as well as a collection of 12 old invasive strains (isolated between 1967 a

The Experience of Younger Adults Following Myocardial Infarction.

The aim of this study was to elucidate the meaning of the experience of younger people (< 55 years) during their first year following a myocardial infarction. We analyzed 17 interviews using a phenomenological-hermeneutic method. The core theme and central phenomenon was the everyday fight to redress the balance in life, which encompassed an existential, physical, and emotional battle to regain a

Development and application of photofragmentation laser-induced fluorescence for visualization of hydrogen peroxides

Popular Abstract in Swedish Utveckling och tillämpning av laserfragmentationsteknik för visualisering av väteperoxider Laserinducerad fluorescens är en etablerad optisk mätmetod för kemiskt specifik detektion och avbildning med tillämpning inom fysik, kemi och biologi. Tekniken bygger på att molekyler ska absorbera laserljus och sedan spontant sända ut ljus som kan detekteras. Det finns dock mångaThe work presented in this thesis is mainly motivated by the need for an optical diagnostic technique which can be used to visualize hydrogen peroxide (H2O2) in its gas phase. Due to the lack of bound electronic states, H2O2 cannot be detected using laser-induced fluorescence based on electronic excitation. Absorption in the ultraviolet leads to photodissociation. Thus a technique called photofrag