197,594 research outputs found

    Asset Prices, Inflation and Monetary Control - Re-inventing Money as a Policy Tool

    No full text
    Low inflation on goods markets provides no reliable precondition for asset-market stability; it might even promote the emergence of bubbles because interest rates and risk premia appear to be low. A further factor driving asset demand is easy availability of credit, which in turn roots in the banking system operating in a regime of endogenous central-bank money. A comparison of Bundesbank and ECB policies suggests that credit growth can be controlled more efficiently if rising interest rates are accompanied by some liquidity squeeze that supports the spillover of a monetary restriction to capital markets. The announcement effect of a central bank Charter including the goal of financial-market stability helps to deter private agents from excessive asset trading.open-market policy; asset-price bubble; euro money market; ECB strategy

    Selfie-Merkel and Villen-Spahn. Negative evaluation and event-based personal name compounds in German

    No full text
    Belosevic M, Arndt-Lappe S. Selfie-Merkel and Villen-Spahn. Negative evaluation and event-based personal name compounds in German. Presented at the 20th International Morphology Meeting, Budapest

    Nanoscopy of bacterial cells immobilized by holographic optical tweezers

    No full text
    Diekmann R, Wolfson D, Spahn C, Heilemann M, Schüttpelz M, Huser T. Nanoscopy of bacterial cells immobilized by holographic optical tweezers. Nature Communications. 2016;7(1): 13711

    Arthroscopic Debridement of Irreparable Massive Rotator Cuff Tears — A Comparison of Debridement Alone and Combined Procedure with Biceps Tenotomy

    No full text
    The goal of the study was to compare the results of arthroscopic debridement in massive, irreparable rotator cuff tears with and without tenotomy of the long head of the biceps (LHB). We evaluated 41 patients who were treated by a single surgeon for massive, irreparable rotator cuff tears either by arthroscopic debridement alone (24 patients) or with additional tenotomy of LHB (17 patients). The mean age was 67 years (range : 61 to 82 years) and the average follow-up was 31 months (range : 24 to 48 months). There was no significant difference between the two groups in age, gender, pain, function, and follow-up. All patients had significant disabling pain weakness preoperatively. Assessments were made using the Constant score. The average Constant score for the group without LHB tenotomy improved from a mean of 39 points (range : 19 to 54 points) preoperatively to a mean of 67 points (range : 41 to 87 points) and for the group with additional LHB tenotomy from a mean of 41 points (range : 16 to 54 points) preoperatively to a mean of 69 points (range : 49 to 87 points) at the time of follow-up. The radiological study showed no significant narrowing of the subacromial space. No statistical significance (P > .05) was found between the two groups. However, patients with additional LHB tenotomy had a longer duration of postoperative pain relief, but final pain score difference was not statistically significant. There was no complication related to the procedure. Arthroscopic debridement of massive, irreparable rotator cuff tears provides reliable expectation for improvement in function, decrease in pain, and improvement in shoulder scores for most patients. Additional LHB tenotomy did not significantly influence the postoperative results at the latest follow-up. In our series we noted no significant humeral head migration or developing rotator cuff arthropathy

    Comparative evaluation of the tendon-bone interface contact pressure in different single- versus double-row suture anchor repair techniques

    No full text
    The aim of the study was to evaluate the time zero contact pressure over a defined rotator cuff footprint using different repair and stitch techniques in an established sheep model. Forty fresh-frozen sheep shoulders were randomly assigned to five repair groups: single-row repair using simple stitches (SRA-s), single-row repair using horizontal mattress stitches (SRA-m), and single-row repair using arthroscopic Mason-Allen stitches (SRA-ama). Double-row repair was either performed with a combination of simple and horizontal mattress stitches (DRA-sm) or with arthroscopic Mason-Allen/horizontal mattress stitches (DRA-amam). Investigations were performed using a pressure-sensitive film system. The average contact pressure and pressure pattern were measured for each group. Contact pressure was lowest in SRA-m followed by SRA-s. SRA-ama showed highest contact pressure of all single-row treatment groups (P < 0.05). DRA-amam presented the highest overall contact pressure (P < 0.05), whereas DRA-sm exerted contact pressure equal to that of SRA-ama. Both double-row techniques showed the most expanded pressure pattern. Average contact pressures for the more complex single- and double-row techniques utilizing arthroscopic Mason-Allen stitches were greater than were those of the repair techniques utilizing simple and horizontal mattress stitches. However, the contact pattern between the anchors could be increased by using the double-row technique, resulting in more footprint coverage compared to patterns utilizing the single-row techniques. These results support the use of the more complex arthroscopic Mason-Allen stitches and may improve the environment for healing of the repaired rotator cuff tendon

    Whole-Organ Arthroscopic Knee Score (WOAKS)

    No full text
    BACKGROUND: To describe a semi-quantitative score for multi-feature, whole-organ evaluation of the knee in osteoarthritis based on the results of arthroscopic evaluation. METHODS: This was a study of 1,199 patients who were suffering from knee pain for over 3 months (range 3 to 48 months) and had undergone arthroscopy. The mean age of patients was 49.8 (range 17 to 85) years old. Cartilage lesions were graded according to the ICRS protocol (grade 0 to 4 and for osteophytes "grade 5"). Meniscus lesions were classified regarding to the extent of resection which was needed (grade 0: intact meniscus, grade 1: partial meniscectomy, grade 2: subtotal meniscectomy, and grade 3: total meniscectomy). The whole grade of cartilage lesions was calculated as the sum of ICRS grades in all joint surfaces (bearing and non-bearing margin). The whole grade of meniscus lesions was calculated as the sum of the points for medial and lateral meniscus surgery. The Whole-Organ Arthroscopic Knee Score (WOAKS) was the sum of the cartilage and meniscus score. RESULTS: The mean knee osteoarthritis outcome score (KOOS) of all patients was 67.3 +/- 26.0 (range 21 to 128) points. The WOAKS was significantly associated (p = 0.001) with patient age (R = 0.399), the subjective complaints (R = 0.630) in KOOS, and the radiological grade of OA (R = 0.731). CONCLUSION: The good correlation between the WOAKS and the subjective complaints as well as the radiological grade of OA suggests that the score can be used as an instrument for description of the "whole organ" knee. This score may be useful for clinical or epidemiological studies in the future

    Debulking surgery in the setting of very high-risk prostate cancer scenarios

    No full text
    Study Type - Therapy (case series) Level of Evidence 4 What's known on the subject? and What does the study add? Nowadays radical prostatectomy (RP) is considered an effective treatment in high-risk prostate cancer (PCa) and the indications for a surgical approach are expanding, even in cases of very high PSA or node-positive disease. We explored the outcomes of debulking surgery in the setting of these very high-risk PCa patients, in order to assess its feasibility. This review confirms the important role achieved by surgery in the complex setting of patients with very high-risk PCA. Excellent survival rates have been reported, even when PSA exceeds 100 ng/mL. The completion of RP with lymphadenectomy might give a survival benefit in patients who were found intraoperatively to be node-positive. Furthermore, salvage RP confirmed to be the most effective treatment option after RT failure. On the contrary, up-to-date surgery of isolated nodal recurrences has shown only little benefit. Finally, there is no evidence supporting the efficacy of debulking surgery in metastatic or in hormone-refractory tumours. An accurate selection of the patient is essential. OBJECTIVE: • To conduct a critical analysis of the available literature on the feasibility of debulking surgery in the setting of very high-risk prostate cancer (PCa) scenarios. PATIENTS AND METHODS: • We performed a systematic literature search of PubMed and Embase using combinations of the following keywords: radical prostatectomy, surgery, high-risk, high PSA (prostate-specific antigen), radiorecurrent, hormone-refractory, metastatic prostate cancer, salvage. • With the term 'very high-risk PCa' we indicated a clinical disease beyond the common definition of high-risk PCa, i.e. any clinical stage > T3, N0 or N+, any PSA level > 50 ng/mL and any recurrent disease after primary treatment. RESULTS: • Radical prostatectomy (RP) achieved excellent survival rates in high-risk PCa, even in patients with very high PSA level. The completion of RP with lymphadenectomy might give a survival benefit in patients who were found intraoperatively to be node-positive. • Salvage RP was confirmed to be the most effective treatment option after radiotherapy failure, with increased functional outcomes and decreased side-effects in the most recent series. • Surgery of isolated nodal recurrences after previous radical therapy has shown little benefit according to the few available series. • There is no evidence supporting the efficacy of debulking surgery in metastatic or hormone-refractory PCa. CONCLUSION: • Debulking surgery achieved an important role in several aggressive PCa scenarios. An accurate selection of the patient is essential

    Dr. Duane M. Jackson, Morehouse College, July 2011

    No full text
    This video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
    corecore