Elmar Heinzle, Diane Weirich, Franz Brogli, Volker H. Hoffmann, Guntram Koller, Marcel Verduyn, Konrad Hungerbühler,
A general procedure for ecological and economic assessment during process design is presented. General objective functions to be used in the integrated development of fine chemical processes are defined. These are intended to accompany and guide process design from the very early design stages onward. The method uses three types of indices all based on simple mass balances. Mass balances are set up during the development, continually incorporating increasing complexity and knowledge. Correspondingly, ...
Tópico(s): Process Optimization and Integration
1998 - American Chemical Society | Industrial & Engineering Chemistry Research
Moritz Zimmermann, Christina Koller, Marcel Reymus, Albert Mehl, Reinhard Hickel,
Abstract Purpose Resin‐based CAD/CAM compound materials might be promising for single‐tooth restorations. Insufficient clinical data are available for this new material class. The purpose of this study was to describe initial clinical in vivo results for indirect particle‐filled composite resin CAD/CAM restorations after 24 months. Materials and Methods Indirect particle‐filled composite resin restorations were fabricated with a CAD/CAM method (CEREC Bluecam intraoral scanner, CEREC MCXL milling ...
Tópico(s): Dental Implant Techniques and Outcomes
2017 - Wiley | Journal of Prosthodontics
Tim Weber, Vedran Vonk, Daniel Escalera‐López, Giuseppe Abbondanza, Alfred Larsson, Volkmar Koller, Marcel J. S. Abb, Zoltán Hegedűs, Thomas Bäcker, Ulrich Lienert, Gary S. Harlow, Andreas Stierle, Serhiy Cherevko, Edvin Lundgren, Herbert Over,
The anodic corrosion behavior of 50 Å thick single-crystalline IrO2(110) films supported on slightly bulk-reduced TiO2(110) single crystals is studied during acidic water splitting by a unique combination of operando techniques, namely, synchrotron-based high-energy X-ray reflectivity (XRR) and surface X-ray diffraction (SXRD) together with highly sensitive inductively coupled plasma mass spectrometry (ICP-MS). Corrosion-induced structural and morphological changes of the IrO2(110) model electrode ...
Tópico(s): Semiconductor materials and devices
2021 - American Chemical Society | ACS Catalysis
Heidi Shale, Stanley Fahn, William C. Koller, Anthony E. Lang,
... of parkinsonism. In: Handbook of Parkinson's disease, Koller WC, Marcel Dekker: New York, 1987; 51– 80. 6 Bokobza ...
Tópico(s): Neurological diseases and metabolism
1987 - Wiley | Movement Disorders
Claire Deschênes, Gabriel Dan Ciocan, V. De Henau, Felix Flemming, J. Huang, Marcel Koller, F A Naime, Maryse Page, Ruiyuan Qian, Thi Thu Ha Vu,
An overview of the AxialT project is presented. Initiated in 2007 by the Consortium on Hydraulic Machines, the aim of this four years project is to contribute to the study of time-dependent hydraulic phenomena in a propeller turbine. The geometry of the entire turbine is generously shared by all partners. Numerical simulations carried out by all partners are confronted with experimental measurements carried out at the LAMH laboratory in Laval University. A mix of 2D LDA, 3D PIV and unsteady pressure ...
Tópico(s): Computational Fluid Dynamics and Aerodynamics
2010 - IOP Publishing | IOP Conference Series Earth and Environmental Science
Daniel Leuenberger, Marcel Koller, Oliver Fuhrer, Christoph Schär,
Abstract Most atmospheric models use terrain-following coordinates, and it is well known that the associated deformation of the computational mesh leads to numerical inaccuracies. In a previous study, the authors proposed a new terrain-following coordinate formulation [the smooth level vertical (SLEVE) coordinate], which yields smooth vertical coordinate levels at mid and upper levels and thereby considerably reduces numerical errors in the simulation of flow past complex topography. In the current ...
Tópico(s): Climate variability and models
2010 - American Meteorological Society | Monthly Weather Review
Vũ Thị Thu, Marcel Koller, Maxime Gauthier, Claire Deschênes,
In the present paper, we focus on the flow computation of a low head Propeller turbine at a wide range of design and off-design operating conditions. First, we will present the results on the efficiency hill chart prediction of the Propeller turbine and discuss the consequences of using non-homologous blade geometries for the CFD simulation. The flow characteristics of the entire turbine will be also investigated and compared with experimental data at different measurement planes. Two operating ...
Tópico(s): Cavitation Phenomena in Pumps
2011 - | International Journal of Fluid Machinery and Systems
Rahel Gilgen-Ammann, Marcel Koller, Céline Huber, Riikka Ahola, Topi Korhonen, Thomas Wyss,
The aim of this study was to develop and cross-validate two models to estimate total energy expenditure (TEE) based on respiration variables in healthy subjects during daily physical activities. Ninety-nine male and female subjects systematically varying in age (18-60 years) and body mass index (BMI; 17-36 kg*m
Tópico(s): Electric Vehicles and Infrastructure
2017 - Nature Portfolio | Scientific Reports
T. C. Vu, Marcel Koller, Maxime Gauthier, Claire Deschênes,
In the present paper, we focus on the flow computation of a low head Propeller turbine at a wide range of design and off-design operating conditions. First, we will present the results on the efficiency hill chart prediction of the Propeller turbine and discuss the consequences of using non-homologous blade geometries for the CFD simulation. The flow characteristics of the entire turbine will be also investigated and compared with experimental data at different measurement planes. Two operating ...
Tópico(s): Advanced Combustion Engine Technologies
2010 - IOP Publishing | IOP Conference Series Earth and Environmental Science
Marcel Monnier, Th. Koller, Stefan Gräber,
Cross circulation experiments were performed on rabbits to determine whether an electrographic sleeplike state induced in the donor by thalamic stimulation, or an electrographic arousal induced by reticular stimulation, influence the recipient brain by extraneuronal humoral mechanisms. We found that stimulation of the mediocentral intralaminary thalamus in the donor induces a significant increase of the delta voltage (computed with an automatic frequency analyzer) after four stimulations (142 ± 20.6%). ...
Tópico(s): Neuroscience and Neural Engineering
1963 - Elsevier BV | Experimental Neurology
O Vatter, Th. Koller, Marcel Monnier,
Tópico(s): Neural dynamics and brain function
1964 - Elsevier BV | Vision Research
Michael Koller, Beat Schaer, Marcel Wolbers, Christian Sticherling, Heiner C. Bucher, Stefan Osswald,
Implantable cardioverter-defibrillators (ICDs) improve survival in selected patients with left ventricular systolic dysfunction in randomized trials. Competing death without prior appropriate ICD therapy might preclude benefit from ICD implantation in a less selected routine-care population.We selected all patients with ischemic or dilated cardiomyopathy with an ICD implanted for primary or secondary prevention from a single-center prospective registry between 1994 and 2006. The end point was time ...
Tópico(s): Cardiomyopathy and Myosin Studies
2008 - Lippincott Williams & Wilkins | Circulation
Hubertus Köller, Heiner Schaal, Marcel Freund, Sanuk Rafaela Garrido, Hans-Jürgen von Giesen, Mélanie Ott, Claudia Rosenbaum, Gabriele Arendt,
Abstract The trans‐activator protein Tat of the human immunodeficiency virus type 1 (HIV‐1) is regarded as an injurious molecule in the pathogenesis of HIV‐1 associated encephalopathy (HIVE). We investigated the effects of Tat on neuroligand‐induced intracellular Ca 2+ increase in cultured astroglial cells. Rat cortical astrocytes, human glioblastoma cells and glial restricted precursor cells, from a human embryonic teratocarcinoma cell line, were incubated with recombinant Tat (100 ng/mL for 60 min) ...
Tópico(s): RNA Research and Splicing
2001 - Wiley | European Journal of Neuroscience
Daniel Koller, Christiane Ruedl, Marcel Loetscher, Jaromir Vlach, S Oehen, Karin Oertle, Michel Schirinzi, Estelle Deneuve, René Moser, Manfred Köpf, James E. Bailey, Wolfgang A. Renner, Martin F. Bachmann,
Tópico(s): Immunotherapy and Immune Responses
2001 - Nature Portfolio | Nature Biotechnology
... of Parkinson's disease. Edited by William C. Koller. Marcel Dekker, Inc., New York, 1987. ISBN 0–8247– ...
Tópico(s): Attention Deficit Hyperactivity Disorder
1990 - Wiley | Human Psychopharmacology Clinical and Experimental
Pierre Krystkowiak, Pascal Martinat, Fran�ois Cassim, J.P. Pruvo, Didier Leys, Jean‐Daniel Guieu, Alain Dest�e, Luc Defebvre,
... Koller WC. Midbrain tremor. In: LJ Findley, WC Koller, eds. Handbook of Tremor Disorders. New York, NY: Marcel Dekker, Inc, 1995: 455–459. 4Bastian AJ, Thach ... normal and pathological tremors. In: LJ Findley, WC Koller, eds. Handbook of Tremor Disorders. New York, NY: Marcel Dekker, Inc, 1995: 7–36. 30Percheron G, Francois ...
Tópico(s): Neurological and metabolic disorders
2000 - Wiley | Movement Disorders
Michael Koller, Ewout W. Steyerberg, Marcel Wolbers, Theo Stijnen, Heiner C. Bucher, M. G. Myriam Hunink, Jacqueline C.M. Witteman,
The National Cholesterol Education Program recommends assessing 10-year risk of coronary heart disease (CHD) in individuals free of established CHD with the Framingham Point Scores (FPS). Individuals with a risk >20% are classified as high risk and are candidates for preventive intervention. We aimed to validate the FPS in a European population of elderly subjects. Subjects free of established CHD at baseline were selected from the Rotterdam study, a population-based cohort of subjects 55 years or ...
Tópico(s): Diabetes, Cardiovascular Risks, and Lipoproteins
2007 - Elsevier BV | American Heart Journal
Michael Koller, Maarten J.G. Leening, Marcel Wolbers, Ewout W. Steyerberg, M. G. Myriam Hunink, Rotraut Schoop, Albert Hofman, Heiner C. Bucher, Bruce M. Psaty, Donald M. Lloyd‐Jones, Jacqueline C.M. Witteman,
Background: Risk scores for prediction of coronary heart disease (CHD) in older adults are needed. Objective: To develop a sex-specific CHD risk prediction model for older adults that accounts for competing risks for death. Design: 2 observational cohort studies, using data from 4946 participants in the Cardiovascular Health Study (CHS) and 4303 participants in the Rotterdam Study (RS). Setting: Community settings in the United States (CHS) and Rotterdam, the Netherlands (RS). Participants: Persons aged ...
Tópico(s): Blood Pressure and Hypertension Studies
2012 - American College of Physicians | Annals of Internal Medicine
Wolfgang Finsterle, Silvio Koller, Ivo Beck, Marcel Spescha, Markus Suter, Walter Benjamín, W. Schmütz,
PMOD/WRC is building the Compact and Light-weight Absolute RAdiometer (CLARA) to fly on the Norwegian Space Centre's (NSC) NORSAT-1 mission. The CLARA is based on a new design by PMOD/WRC which minimizes size and weight while improving the radiometric performance. The NORSAT-1 mission is planned to be launched to a polar LEO in Q4 2015. The nominal mission duration is three years but NSC intends to operate NORSAT-1 for long as the platform and payload remain functional.
Tópico(s): Geophysics and Gravity Measurements
2014 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
... Cardiovascular Health Study and the Rotterdam StudyMichael T. Koller, MD, MSc, Maarten J.G. Leening, MD, MSc, Marcel Wolbers, PhD, Ewout W. Steyerberg, PhD, M.G. ...
Tópico(s): Lipoproteins and Cardiovascular Health
2010 - American College of Physicians | Annals of Internal Medicine
Michael Koller, Heike Raatz, Ewout W. Steyerberg, Marcel Wolbers,
Life expectancy has dramatically increased in industrialized nations over the last 200 hundred years. The aging of populations carries over to clinical research and leads to an increasing representation of elderly and multimorbid individuals in study populations. Clinical research in these populations is complicated by the fact that individuals are likely to experience several potential disease endpoints that prevent some disease‐specific endpoint of interest from occurrence. Large developments ...
Tópico(s): Ethics in Clinical Research
2011 - Wiley | Statistics in Medicine
Marcel Wolbers, Michael Koller, Vianda S Stel, Beat Schaer, Kitty J. Jager, Karen Leffondré, Georg Heinze,
Studies in cardiology often record the time to multiple disease events such as death, myocardial infarction, or hospitalization. Competing risks methods allow for the analysis of the time to the first observed event and the type of the first event. They are also relevant if the time to a specific event is of primary interest but competing events may preclude its occurrence or greatly alter the chances to observe it. We give a non-technical overview of competing risks concepts for descriptive and ...
Tópico(s): Advanced Statistical Process Monitoring
2014 - Oxford University Press | European Heart Journal
Marcel Wolbers, Michael Koller, Jacqueline C.M. Witteman, Ewout W. Steyerberg,
Clinical decision-making often relies on a subject's absolute risk of a disease event of interest. However, in a frail population, competing risk events may preclude the occurrence of the event of interest. We review competing-risk regression models with a view toward predictive modeling. We show how measures of prognostic performance (such as calibration and discrimination) can be adapted to the competing-risks setting. An example of coronary heart disease (CHD) prediction in women aged 55-90 years ...
Tópico(s): Statistical Methods and Inference
2009 - Lippincott Williams & Wilkins | Epidemiology
This review gives an overview about the structural organisation of different evolutionary lines of all enzymes capable of efficient dismutation of hydrogen peroxide. Major potential applications in biotechnology and clinical medicine justify further investigations. According to structural and functional similarities catalases can be divided in three subgroups. Typical catalases are homotetrameric haem proteins. The three-dimensional structure of six representatives has been resolved to atomic resolution. ...
Tópico(s): Protein Interaction Studies and Fluorescence Analysis
1999 - Elsevier BV | Progress in Biophysics and Molecular Biology
Anja Vogel, Anne Ebeling, Gerd Gleixner, Christiane Roscher, Stefan Scheu, Marcel Ciobanu, Eva Koller-France, Markus Lange, Alfred Lochner, Sebastian T. Meyer, Yvonne Oelmann, Wolfgang Wilcke, Bernhard Schmid, Nico Eisenhauer,
Previous experimental studies found strengthening relationships between biodiversity and ecosystem functioning (BEF) over time. Simultaneous temporal changes of abiotic and biotic conditions, such as in the composition of soil communities, soil carbon and nutrient concentrations, plant community assembly or selection processes, are currently discussed as potential drivers for strengthening BEF relationships. Despite the popularity of these explanations, experimental tests of underlying mechanisms ...
Tópico(s): Species Distribution and Climate Change
2019 - Elsevier BV | Advances in ecological research/Advances in Ecological Research
Marcel Wolbers, Michael Koller,
... for more papers by this authorMichael Koller, Michael Koller Basel Institute for Clinical Epidemiology, University Hospital Basel, Hebelstasse 10, Basel 4031, SwitzerlandSearch for more papers by this author Marcel Wolbers, Marcel Wolbers wolbersm@uhbs.ch Basel Institute for Clinical Epidemiology, University Hospital Basel, Hebelstasse 10, Basel 4031, SwitzerlandSearch for more papers by this authorMichael Koller, Michael Koller Basel Institute for Clinical Epidemiology, University ...
Tópico(s): Advanced Causal Inference Techniques
2007 - Wiley | Statistics in Medicine
Oscar Joost, Catherine A. Taylor, Cathi A. Thomas, L. Adrienne Cupples, Marie Saint‐Hilaire, Robert G. Feldman, Clinton T. Baldwin, Richard H. Myers,
... RJ. Epidemiology of Parkinson's disease. In: WC Koller, ed. Handbook of Parkinson's Disease. New York, NY: Marcel Dekker, 1989: 35–50. Google Scholar 4Lazzarini AM, ...
Tópico(s): Pharmaceutical studies and practices
1999 - Wiley | Movement Disorders
Marcus Köller, Marcel Goldberg, Gerhard Schramm, Matthias Merkenschlager,
Tópico(s): Antibiotics Pharmacokinetics and Efficacy
1990 - Springer Science+Business Media | Zeitschrift für Ernährungswissenschaft
1988 - SAGE Publishing | Neurorehabilitation and neural repair
Anneke Govaerts, Michel Van Zandijcke, Ides Dehaene,
... Koller WC. Midbrain tremor. In: LJ Findley, WC Koller, eds. Handbook of tremor disorders. New York: Marcel Dekker, 1995: 455–459. Google Scholar 10 Findley ...
Tópico(s): Genetic Neurodegenerative Diseases
1998 - Wiley | Movement Disorders