Cordless-Microscope
All about Cordless-Microscope.A Prospective Longitudinal Study Comparing a Radical Retropubic Prostatectomy and Permanent Prostate Brachytherapy Regarding the Health-related Quality of Life for Localized Prostate Cancer
A Prospective Longitudinal Study Comparing a Radical Retropubic Prostatectomy and Permanent Prostate Brachytherapy Regarding the Health-related Quality of Life for Localized Prostate Cancer
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The health-related quality of life (HRQOL) after a radical retropubic prostatectomy (RRP) or a permanent prostate brachytherapy (PPB) was prospectively compared at a single institute.
Between 2003 and 2005, 122 patients were treated by RRP and 82 patients were treated by PPB. A QOL survey was completed at baseline, and 1, 3, 6 and 12 months after treatment, prospectively.
The general HRQOL was not different between the RRP and PPB groups after 3 months. However, at 1 month after treatment, the general HRQOL scores, except for general health, were significantly better in the PPB group than that in the RRP group. Moreover, the disease-specific QOL was worse in urinary and sexual functions in the RRP group. Urinary function in the RRP group had not recovered to baseline after 12 months. Although the urinary function in the PPB group was better than that of the RRP group, urinary bother continued to worsen until 6 months and thereafter it recovered gradually. The bowel function was not worse in the PPB group but bowel bother was worse at 6 months in the PPB group. In the RRP group, the patients with nerve sparing demonstrated better in sexual function than those without nerve sparing, but the recovery did not reach the level of the PPB group.
This prospective study revealed the differences in the QOL after RRP and PPB. These results will be helpful for making treatment decisions.
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| Research Articles Nadi Braidy, Zygmunt J. Jakubek, Benoit Simard, Gianluigi A. Botton, Microscopy and Microanalysis, Volume 14 Issue 02 , pp 166-175 Abstract An energy dispersive X-ray spectrometry (EDXS) method is developed to evaluate the composition of alloyed nanoparticles (NPs) where one of the alloying elements is removed under the electron beam during microanalysis with a transmission electron microscope (TEM). The method is demonstrated for alloyed Au-Ag NPs of a diameter ranging from 6 to 20 nm produced by laser evaporation of a water-suspended Ag-Au powder mixture of varying composition. Series of EDXS spectra are recorded for 30 NPs from samples with five different Ag:Au ratios revealing Ag depletion from NPs during electron irradiation. By studying the evolution of NPs composition as a function of dose, the initial Ag content for each NP is extrapolated. The rate of Ag depletion is discussed in terms of sputtering and knock-on damage. On average, approximately one Ag atom is lost from the NP for each Ag L X-ray detected. To assess the limitations of microanalysis in these sensitive nanoscale structures, the concept of detectability limit is adapted to our method. This benchmark is then evaluated for Ag in Au-Ag NPs of various sizes and acquisition times. This study should be regarded as a guide for the design of analytical TEM measurements of beam-sensitive NPs. |
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| • | Summer Invention Camp |
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| • | Early Return to Work Following Open Carpal Tunnel Decompression in Lamb Freezing Workers |
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Carpal tunnel syndrome is common at the largest lamb processing plant in the world, especially in new lamb boners. The purpose of this study was to establish the incidence and whether expeditious return to work following open carpal tunnel decompression was possible. Two hundred patients with a neurophysiologically confirmed diagnosis underwent surgery between 2002 and 2006. One hundred and eighty-seven patients were assessed retrospectively and 13 prospectively. The incidence in new lamb boners was 10% in their first season. On average, workers commenced rehabilitation at 11 days post-operatively and full duties at 29 days post-operatively with minimal further time off taken. Ninety percent returned to their previous role. By 8 weeks in the prospective group visual analogue pain scores had improved from 8.75 to 2.0 (P<0.01) and Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) scores had improved from 140 points to 68 (P<0.01). Grip/pinch testing, static two-point discrimination scores and complication rates were comparable with previous studies. This study provides good evidence that coordinated, early rehabilitation and return to work is effective in a high-demand population. |
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| • | Preparation of TEM samples of ferritic alloys |
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We describe techniques for electropolishing irradiated ferritic specimens for examination under the TEM in situations where the foil quality is of utmost importance. First, we describe some modifications to the standard technique for making plan-view specimens aimed at optimizing the foil quality. Second, we describe a technique for making plan-view specimens from a region of buried damage in a specimen irradiated with 2 MeV Fe+ ions. |
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