523 research outputs found

    Gas-liquid interfacial area in the oxygen absorption to oil-in-water emulsions in an airlift reactor

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    The present work includes an exhaustive study about gas–liquid interfacial area between gas phase and liquid heterogeneous medium generated in an airlift bioreactor. The system studied is composed by water, methyl ricinoleate (MR), and Tween-80, since it is the base of the medium used for the production of γ-decalactone, a peach-like aroma compound of industrial interest that can be produced biotechnologically through the biotransformation of ricinoleic acid, by the yeast Yarrowia lipolytica. Experimental results allowdescribing the hydrodynamic behaviour of the gas phase into the biphasic medium.Le travail actuel comprend une étude approfondie sur la zone interfaciale gaz-liquide entre la phase gazeuse et le milieu hétérogène liquide produit par un bioréacteur à agitation par circulation d'air. Le système étudié se compose d'eau, de ricinoléate de méthyle et de Tween 80, puisqu'il constitue la base du milieu utilisé pour la production de γ-decalactone, un composé d'arôme semblable à la pêche d'intérêt industriel que l'on peut produire de façon biotechnologique par la biotransformation de l'acide ricinoléique (un important constituant du ricinoléate de méthyle), par la levure Yarrowia lipolytica. Les résultats expérimentaux permettent de décrire le comportement hydrodynamique de la phase gazeuse dans le milieu biphasique

    Dutch Shell Companies and International Tax Planning

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    Aggressive tax planning indicators; Final Report

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    The aim of this study is to provide economic evidence of the relevance of aggressive tax planning (ATP) structures for all EU Member States. The study relies on economic indicators available at macro-level and on indicators derived from firm-level data. The objective is indeed to look at the relevance of ATP for all Member States through these two complementary angles. For each indicator, the study identifies outliers based on a consistent methodology. None of the indicators provides per se an irrefutable causality towards aggressive tax planning. However, considered together, the set of indicators shall be seen as a "body of evidence". While there are some data limitation, the study provides a broad picture of which Member States appear to be exposed to ATP structures, and how it impacts on their tax base (erosion or increase). The discussed ATP structures can be grouped into three main channels: i) ATP via interest payments, ii) ATP via royalty payments and iii) ATP via strategic transfer pricing. In addition to general indicators assessing the overall exposure to ATP, we also derive specific indicators for each of the ATP channels. In combination, these indicators allow to classify entities within multinational enterprises (MNEs) into three types: i) target entities, where the tax base is reduced ii) the lower tax entities where the tax base is increased but taxed at a lower rate, and iii) conduit entities which are in a group with ATP activities but no clear effect on the tax base is observable

    Study on Parallel Computation and Load Balance Strategy Based on Multiblock Structured Grid

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    从并行计算流体力学程序的稳定性和效率两大问题入手,针对多块结构网格的通用数据传输方法和基于遗传优化算法的负载平衡方法,并在已有串行多块结构网格程序基础上发展了相应的并行程序。该并行程序以物理区域分割为基础,采用MPI实现消息传递,适用于各种不同的并行机体系结构,具有很好的可移植性。大量数值实验证明,本文发展的并行程序具有良好的稳定性和并行效率,可以进一步应用于大规模实际工程计算

    Aggressive tax planning indicators ; Final Report

    Get PDF
    The aim of this study is to provide economic evidence of the relevance of aggressive tax planning (ATP) structures for all EU Member States. The study relies on economic indicators available at macro-level and on indicators derived from firm-level data. The objective is indeed to look at the relevance of ATP for all Member States through these two complementary angles. For each indicator, the study identifies outliers based on a consistent methodology. None of the indicators provides per se an irrefutable causality towards aggressive tax planning. However, considered together, the set of indicators shall be seen as a "body of evidence". While there are some data limitation, the study provides a broad picture of which Member States appear to be exposed to ATP structures, and how it impacts on their tax base (erosion or increase). The discussed ATP structures can be grouped into three main channels: i) ATP via interest payments, ii) ATP via royalty payments and iii) ATP via strategic transfer pricing. In addition to general indicators assessing the overall exposure to ATP, we also derive specific indicators for each of the ATP channels. In combination, these indicators allow to classify entities within multinational enterprises (MNEs) into three types: i) target entities, where the tax base is reduced ii) the lower tax entities where the tax base is increased but taxed at a lower rate, and iii) conduit entities which are in a group with ATP activities but no clear effect on the tax base is observable

    Prevalence and follow-up of potentially inappropriate medication and potentially omitted medication in older patients with cancer - The PIM POM study

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    Objectives: To determine the prevalence of Potentially Inappropriate Medication (PIMs) and Potentially Omitted Medication (POMs) in older patients with cancer. Materials and Methods: In this prospective observational study (hospital) pharmacists conducted comprehensive medication reviews in older patients with cancer (aged >= 65 years) receiving parenteral chemotherapy and/or immunotherapy at the Deventer Hospital. PIMs and POMs were identified using the Screening Tool of Older Persons' potentially inappropriate Prescriptions (STOPP), the Screening Tool to Alert doctors to the Right Treatment (START), and pharmacists' expert opinion. Recommendations regarding PIMs and POMs were communicated to the patient's oncologist/haematologist and follow-up was measured. Associations between covariates and the prevalence of PIMs and POMs were statistically analysed. Results: For the 150 patients included, 180 PIMs and 86 POMs were identified with a prevalence of 78%. Using pharmacists' expert opinion in addition to only STOPP/START criteria contributed to 49% of the PIMs and 23% of the POMs. A follow-up action was required in 73% of the 266 PIMs and POMs. Number of medicines and Charlson Comorbidity Index score were both associated with having at least one PIM and/or POM (p = .031 and p = .016, respectively). Conclusion: The prevalence of PIMs and POMs and subsequent follow-up in older patients with cancer is high. A pharmacist-led comprehensive medication review is a good instrument to identify these PIMs and POMs and to optimize patients' treatment. A complete approach, including pharmacists' expert opinion, is recommended to identify all PIMs and POMs in clinical practice. (C) 2020 The Authors. Published by Elsevier Ltd

    Clinical Comparison of Distal Pancreatectomy with or without Splenectomy

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    The spleen may be preserved during distal pancreatectomy (DP) for benign disease. The aim of this study was to compare the perioperative and postoperative courses of patients with conventional DP and spleen-preserving distal pancreatectomy (SPDP) for benign lesions or tumors with low-grade malignant potential occurred at the body or tail of the pancreas. A retrospective analysis was performed for the hospital records of all the patients undergoing DP and SPDP between January 1995 and April 2006. One-hundred forty-three patients underwent DP and 37 patients underwent SPDP. There were no significant differences in age, sex, indications of operation, estimated blood loss, operative time, and postoperative hospital stay between the two groups. Pancreatic fistula occurred in 21 (13.3%) patients following DP and in 3 (8.1%) following SPDP without a significant difference (p=0.081). Portal vein thrombosis occurred in 4 patients after DP. Splenic infarction occurred in one patient after SPDP. Overwhelming postosplenectomy infection was observed in one patient after DP. SPDP can be achieved with no increase in complication rate, operative time, or length of postoperative hospitalization as compared to conventional DP. Additionally, it has the advantage of reducing the risk of overwhelming postsplenectomy infection and postoperative venous thrombosis

    The value of radiographic markers in the diagnostic work-up of rotator cuff tears, an arthroscopic correlated study

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    Objective To evaluate the value of radiographs during the diagnostic work-up of rotator cuff tears, using arthroscopy as reference standard. Materials and methods This retrospective study included 236 shoulders of 236 patients. All radiographs were evaluated for inferior cortical acromial sclerosis, lateral acromial spur, superior migration of the humeral head, greater tubercle cysts, and subacromial space calcifications. Predictive value of these radiographic signs in predicting rotator cuff tears was determined with arthroscopy as reference standard. Results According to arthroscopy, 131 shoulders were diagnosed with rotator cuff tears. Seventy-two out of 131 shoulders (55%) had inferior cortical acromial sclerosis, 37 (28%) lateral acromial spur, 21 (16%) superior migration of the humeral head, 7 (5%) greater tubercle cysts and 15 subacromial space calcifications (11%). Inferior cortical acromial sclerosis (P = 0.001), lateral spur (P = 0.001), superior migration (P = 0.002), and cysts (P = 0.03) were significantly and independently associated with rotator cuff tears, whereas subacromial calcifications (p = 0.21) was not. Inferior cortical acromial sclerosis, superior migration, lateral acromial spur, and cysts combined have a positive predictive value of 78%. Conclusions The combination of inferior cortical acromial sclerosis, lateral acromial spur, superior migration of the humeral head, and greater tubercle cysts has a high positive predictive value for the presence of full-thickness rotator cuff tears. In patients with a high suspicion for having a rotator cuff tear based on radiographic findings, MRI can be performed directly without the delay and costs caused by an additional ultrasound exam
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