460 research outputs found

    Ethnicity, Job Search and Labor Market Reintegration of the Unemployed

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    This paper is based on recently collected and rich survey data of a representative sample of entrants into unemployment in Germany. Our data include a large number of migration variables, allowing us to adapt a recently developed concept of ethnic identity: the ethnosizer. To shed further light on the native-migrant differences in economic outcomes, we investigate the labor market reintegration, patterns of job search, and reservation wages across unemployed migrants and natives in Germany. Our results indicate that separated migrants have a relatively slow reintegration into the labor market. We explain this finding by arguing that this group exerts a relatively low search effort and that it has reservation wages which are moderate, yet still above the level which would imply similar employment probabilities as other groups of migrants.migration, ethnicity, ethnic identity, ethnosizer, unemployment, job search, reservation wages

    Ethnicity, Job Search and Labor Market Reintegration of the Unemployed

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    This paper is based on recently collected and rich survey data of a representative sample of entrants into unemployment in Germany. Our data include a large number of migration variables, allowing us to adapt a recently developed concept of ethnic identity: the ethnosizer. To shed further light on the native-migrant differences in economic outcomes, we investigate the labor market reintegration, patterns of job search, and reservation wages across unemployed migrants and natives in Germany. Our results indicate that separated migrants have a relatively slow reintegration into the labor market. We explain this finding by arguing that this group exerts a relatively low search effort and that it has reservation wages which are moderate, yet still above the level which would imply similar employment probabilities as other groups of migrants.unemployment, ethnosizer, ethnic identity, ethnicity, migration, job search, reservation wages

    The Chalcolithic–Bronze Age transition in southern Iberia under the influence of the 4.2 kyr event? A correlation of climatological and demographic proxies

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    The end of the third millennium BCE represents (not only) on the Iberian Peninsula the time of transition to the Bronze Age. At the same time this is the time of a general climatic event, the so-called 4.2 ka BP event, which can be observed (in different manifestations) in different regions of the northern hemisphere. By synchronizing cultural and climatic developments and above all by assessing demographic developments and their spatial development, a much-discussed connection between the two phenomena can be made plausible and opens the perspective for further, more detailed research on the interdependence between cultural, demographic and climatological processes. For this purpose, the results of aoristics, 14C sum calibration and the evaluation of the concentration of long-chain n-alkane homologues of terrestrial origin as precipitation predictor are combined, their correlation is presented and possible responses are interpreted from the mapping of the settlement system development. This article provides an initial overview of the current results

    Similar revision rate after cemented and cementless femoral revisions for periprosthetic femoral fractures in total hip arthroplasty:analysis of 1,879 revision hip arthroplasties in the Dutch Arthroplasty Register

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    BACKGROUND AND PURPOSE: Periprosthetic femoral fracture (PPF) after total hip arthroplasty (THA) is a serious complication, as it often is followed by functional deficits and morbidity. There is no consensus regarding the optimal stem fixation method and whether additional cup replacement is beneficial. The aim of our study was to perform a direct comparison of reasons and risk of re-revision between cemented and uncemented revision THAs following PPF using registry data.PATIENTS AND METHODS: 1,879 patients registered in the Dutch Arthroplasty Registry (LROI) who underwent a first-time revision for PPF between 2007 and 2021 (cemented stem: n = 555; uncemented stem: n = 1,324) were included. Competing risk survival analysis and multivariable Cox proportional hazard analyses were performed.RESULTS: 5- and 10-year crude cumulative incidence of re-revision following revision for PPF was similar between cemented (resp. 13%, 95% CI 10-16 and 18%, CI 13-24) and uncemented (resp. 11%, CI 10-13 and 13%, CI 11-16) revisions. Multivariable Cox regression analysis, adjusting for potential confounders, showed a similar risk of revision for uncemented and cemented revision stems. Finally, we found no difference in risk of re-revision between a total revision (HR 1.2, 0.6-2.1) compared with a stem revision.CONCLUSION: We found no difference in the risk of re-revision between cemented and uncemented revision stems after revision for PPF.</p

    Periodisierung der Trichterbecher-Gesellschaften. Ein Arbeitsentwurf

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    Old and new data from the Funnel Beaker societies have been collated to create a new chronological chart of regional developments. The comparison between Scandinavian and North Central European periodisations offers the possibility to identify different developments in a synchronized time frame

    Patient Characteristics Influence Revision Rate of Total Hip Arthroplasty:American Society of Anesthesiologists Score and Body Mass Index Were the Strongest Predictors for Short-Term Revision After Primary Total Hip Arthroplasty

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    Background: Outcome and survival after primary total hip arthroplasty (THA) can be affected by patient characteristics. We examined the effect of case-mix on revision after primary THA using the Dutch Arthroplasty Register. Methods: Our cohort included all primary THAs (n = 218,214) performed in patients with osteoarthritis in the Netherlands between 2007 and 2018. Multivariable logistic regression analysis was used to calculate the difference in survivorship in patients with different patient characteristics (age, gender, American Society of Anesthesiologists [ASA] score, body mass index [BMI], Charnley score, smoking, and previous operations to the hip). Results: Case-mix factors associated with an increased risk for revision 1 year after THA were the following: a high ASA score (II and III-IV) (odds ratio [OR] 1.5, 95% confidence interval [CI] 1.1-2.0 and OR 3.0, 95% CI 1.7-5.3), a higher BMI (30-40 and >40) (OR 1.4, 95% CI 1.2-1.5 and OR 2.0, 95% CI 1.4-1.7), age ≥75 years (OR 1.5, 95% CI 1.1-2.0), and male gender (OR 1.3, 95% CI 1.2-1.4). A similar model for 3-year revision showed comparable results. High BMI (OR 1.9, 95% CI 1.3-2.9), a previous hip operation (OR 1.8, 95% CI 1.3-2.5), ASA III-IV (OR 1.2, 95% CI 1-1.6), and Charnley score C (OR 1.5, 95% CI 1.1-2.2) were associated with increased risk for revision. Main reasons for revision in obese and ASA II-IV patients were infection, dislocation, and periprosthetic fracture. Patients with femoral neck fracture and late post-traumatic pathology were more likely to be revised within 3 years, compared to osteoarthritis patients (OR 1.5, 95% CI 1.3-1.7 and OR 1.5, 95% CI 1.2-1.7). Conclusion: The short-term risk for revision after primary THA is influenced by case-mix factors. ASA score and BMI (especially >40) were the strongest predictors for 1-year revision after primary THA. After 3 years, BMI and previous hip surgery were independent risk factors for revision. This will help surgeons to identify and counsel high-risk patients and take appropriate preventive measures

    RADON - Radiocarbon dates online 2012. Central European database of 14C dates for the Neolithic and the Early Bronze Age.

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    In order to understand the dynamics of cultural phenomena, scientific dating in archaeology is an increasingly indispensable tool. Only by dating independently of typology is it possible to understand typological development itself (Müller 2004). Here radiometric dating methods, especially those based on carbon isotopy, still play the most important role. For evaluations exceeding the intra-site level, it is particularly important that such data is collected in large numbers and that the dates are easily accessible. Also, new statistical analyses, such as sequential calibration based on Bayesian methods, do not require single dates, but rather demand a greater number. By their combination significantly more elaborate results can be achieved compared to the results from conventional evaluation (e. g. Whittle et al. 2011).A second premise of RADON is that of „Open Access“. This approach continues to be applied in the international research community, which we welcome as a highly positive development. The radiocarbon database RADON has been committed to this principle for more than 12 years. In this database 14C data – primarily of the Neolithic of Central Europe and Southern Scandinavia – is collected and successively augmented
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