619 research outputs found
Apprentice pay in Britain, Germany and Switzerland: Institutions, market forces and market power
This is the accepted version of the original publication in the European Journal of Industrial Relations, which is available online at http://ejd.sagepub.com/content/19/3/201.The pay of metalworking apprentices is high in Britain, middling in Germany and low in Switzerland. We analyse these differences using fieldwork evidence and survey data, drawing on both economic and institutionalist theories. Several institutional attributes influence apprentice pay, partly by affecting supply and demand in markets for training places. Institutional support for apprenticeship training appears to involve important complementarities in both Germany and Switzerland, in contrast to Britainâs less coherent and more market-driven approach.We thank the Hans-Böckler-Stiftung, Anglo-German Foundation, SKOPE (Oxford), the Swiss federal government (OPET/SERI) and WZB (Berlin) for financial support
Upscaling the shallow water model with a novel roughness formulation
This study presents a novel roughness formulation
to conceptually account for microtopography
and compares it to four existing roughness models from
literature. The aim is to increase the grid size for computational
efficiency, while capturing subgrid scale effects
with the roughness formulation to prevent the loss
in accuracy associated with coarse grids. All roughness
approaches are implemented in the Hydroinformatics
Modeling System and compared with results of
a high resolution shallow water model in three test
cases: rainfall-runoff on an inclined plane with sinewave
shaped microtopography,
ow over an inclined
plane with random microtopography and rainfall-runoff
in a small natural catchment. Although the high resolution
results can not be reproduced exactly by the coarse
grid model, e.g. local details of
ow processes can not
be resolved, overall good agreement between the upscaled models and the high resolution model has been
achieved. The proposed roughness formulation generally
shows the best agreement of all compared models.
It is further concluded that the accuracy increases with
the number of calibration parameters available, however
the calibration process becomes more difficult. Using
coarser grids results in significant speedup in comparison
with the high resolution simulation. In the presented
test cases the speedup varies from 20 up to 2520,
depending on the size and complexity of the test case
and the difference in cell sizes.The authors thank the Alexander von
Humboldt-Foundation for the Humboldt Research Fellowship
granted to Dr. Dongfang Liang.This is the accepted manuscript. The final version is available at http://link.springer.com/article/10.1007%2Fs12665-015-4726-7
Reversal of hepatorenal syndrome type 1 with terlipressin plus albumin vs. placebo plus albumin in a pooled analysis of the OT-0401 and REVERSE randomised clinical studies
Background
The goal of hepatorenal syndrome type 1 (HRS-1) treatment is to improve renal function. Terlipressin, a synthetic vasopressin analogue, is a systemic vasoconstrictor used for the treatment of HRS-1, where it is available. Aim
To compare the efficacy of terlipressin plus albumin vs. placebo plus albumin in patients with HRS-1. Methods
Pooled patient-level data from two large phase 3, randomised, placebo-controlled studies were analysed for HRS reversal [serum creatinine (SCr) value â€133 ÎŒmol/L], 90-day survival, need for renal replacement therapy and predictors of HRS reversal. Patients received intravenous terlipressin 1â2 mg every 6 hours plus albumin or placebo plus albumin up to 14 days. Results
The pooled analysis comprised 308 patients (terlipressin: n = 153; placebo: n = 155). HRS reversal was significantly more frequent with terlipressin vs. placebo (27% vs. 14%; P = 0.004). Terlipressin was associated with a more significant improvement in renal function from baseline until end of treatment, with a mean between-group difference in SCr concentration of â53.0 ÎŒmol/L (P \u3c 0.0001). Lower SCr, lower mean arterial pressure and lower total bilirubin and absence of known precipitating factors for HRS were independent predictors of HRS reversal and longer survival in terlipressin-treated patients. Conclusions
Terlipressin plus albumin resulted in a significantly higher rate of HRS reversal vs. albumin alone in patients with HRS-1. Terlipressin treatment is associated with improved renal function
Remote Sensing of Coniferous Forest Leaf Area
Many important ecological questions concern ecosystem processes occurring over large areas. However, our understanding o f ecosystem functions is derived primarily from research executed on small, intensively studied sites, and extrapolation to large areas is difficult
Modeling deficit irrigation in alfalfa production
A conceptual agronomic model EPIC was extended to consider the effects of salinity in alfalfa production under optimal and water stress irrigation conditions. The extended model was calibrated and validated with observed lysimeter data. The model parameters that affected alfalfa yield and soil salinity the most were wilting point, field capacity, hydraulic conductivity, nitrate concentration, biomass energy ratio, seeding rate, average soil salinity EC e at which crop yield is reduced by 50% ( EC50 ), and initial soil gypsum concentration. The calibrated and validated model was then applied to an alfalfa deficit irrigation study. The four irrigation treatments included optimum check, minimum stress, short stress, and long stress, each of which produced differential alfalfa yields. The purpose of summer deficit irrigation was to ascertain how much agricultural water at what cost could be made available for urban water uses during water shortfalls. The results of model simulation were found to be satisfactory under all irrigation treatments though the model slightly overestimated the yields and underestimated the soil EC e at the end of short and long stress treatments. An economic component is included to determine the appropriate compensation for farmers undergoing a range of deficit irrigations
Orbital apex syndrome caused by aspergilloma in an immunocompromised patient with cutaneous lymphoma: A case report of a rare entity
A 57-year-old man with a history of chemotherapy because of cutaneous lymphoma presented with an orbital apex syndrome. The cranial computed tomography scan revealed a tumour in the orbital apex, extending intradurally. With a suspected diagnosis of a neoplastic lesion, the patient underwent orbital surgery with optic nerve decompression. Histology revealed an aspergilloma. No other foci were seen and treatment with antifungals was started. In immunocompromised patients with intracranial tumours, infection is always a major consideration in the differential diagnosis, even if the reason for immunosuppression (in this case chemotherapy) dates back several months. Misdiagnosing an orbital apex lesion as a cancer and treating patients primarily with corticosteroids can be life threatening. Removal or biopsy of such lesions is essential in further treatment since antifungals have to be administered as fast as possible
Bodennutzung in KleingÀrten
GĂ€rtnern ist fĂŒr viele Menschen in Deutschland ein Hobby. So hat der âBundesverband Deutscher Gartenfreunde e.V.â, die Dachorganisation vieler Kleingartenvereine, 947.137 Mitglieder, die auf einer FlĂ€che von 460 kmÂČ gĂ€rtnern (1). Diese Zahl gilt lediglich fĂŒr KleingĂ€rtner und nicht fĂŒr Menschen, die einen Hausgarten oder eine AckerflĂ€che bewirtschaften oder in einem Urban Gardening Projekt aktiv sind. Im Jahr 2016 haben 8,4 Millionen Menschen in Deutschland mehrmals in der Woche gegĂ€rtnert, weitere 14,2 Millionen gaben an, mehrmals im Monat im Garten aktiv zu sein (2). Dies zeigt, dass GĂ€rtnern eine beliebte FreizeitbeschĂ€ftigung ist. Im Zuge dieser FreizeitbeschĂ€ftigung befassen sich die GĂ€rtner auf freiwilliger Basis mit dem Ressourcenkomplex âGartenâ, der sich aus den Faktoren Boden, Pflanzen, Wissen, Bearbeitungspraktiken und im Falle der Kleingartenorganisationen auch aus Regeln zusammensetzt. Bisher ist jedoch wenig bekannt, ob bei den GĂ€rtnern Bodenwissen vorhanden ist und wie sie mit dem Boden umgehen. Die Forschungsfragen lauten daher: Wie nutzen die KleingĂ€rtner den Boden in ihren Parzellen? Können sie Bodenarten unterscheiden? Befassen sie sich mit BodenqualitĂ€t? Wie wird die BodenqualitĂ€t eingeschĂ€tzt?
In zwei Regionen Baden-WĂŒrttembergs wurden GĂ€rtner mithilfe eines Fragebogens befragt. Um einen Vergleich zwischen lĂ€ndlichen und stĂ€dtischen Gebieten ziehen zu können, fand die Befragung in der Landeshauptstadt Stuttgart und im lĂ€ndlichen Schwarzwald-Baar-Heuberg-Kreis statt. Hierbei war das Ziel, Gemeinsamkeiten und Unterschiede zwischen den Regionen herauszuarbeiten. ZusĂ€tzlich wurden in jedem Verein Bodenproben genommen, um die subjektive Bodenwahrnehmung der GĂ€rtner in den Kontext bodenkundlicher Ergebnisse zu stellen
Waters. Conference Proceedings for âWaters as a Resourceâ of the SFB 1070 ResourceCultures and DEGUWA (Deutsche Gesellschaft zur Förderung der UnterwasserarchĂ€ologie e.V.)
This volume contains the conference contributions of scientists of the SFB 1070 presented at the conference 'Waters as a Resource', which was organized in cooperation with DEGUWA (Deutsche Gesellschaft zur Förderung der UnterwasserarchĂ€ologie e.V.) and took place in TĂŒbingen from March 15th to 18th 2018.
The conference proceedings focus on different resources provided by waters or on the ResourceComplexes connected to them. After a brief reflection on theories and methods used within the SFB 1070 to study and understand resources, conceptions of water bodies in cultural anthropology and archaeology are compared using the examples of the Guadalquivir and Syr Darya Rivers. The third contribution investigates water management on islands and its influences on the identity of the islanders. The fourth chapter shows how seclusion on islands can be an important resource for island communities in the Strait of Sicily. Waters as means for identity formation in medieval monasteries is the focus of the fifth chapter, which is followed by a contribution that investigates the impact of maritime food sources on Viking Life. The last study analyses Greek settlements in the Black Sea. All contributions illustrate how a new perspective on resources opens up new possibilities for interpretation
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