Explanipedia

Does opt-out legislation crowd out living organ donations? A cross-country study Open

Stefan Felder, Richard Abbasi · 2025

To address the shortage of donor organs, some countries have adopted opt-out legislation, whereby consent for post-mortem donation is presumed unless individuals explicitly object prior to death. However, an increase in post-mortem organ d…

Determining the Optimal Sequence of Multiple Tests Open

Lucas Böttcher, Stefan Felder · 2025

The use of multiple tests can improve medical decision making by balancing the benefits of correctly treating ill patients and avoiding unnecessary treatment for healthy individuals against the potential harms of missed diagnoses, inapprop…

Impact of atrial fibrillation on productivity in working-age patients: an analysis of Swiss-AF prospective cohort study data Open

Helena Aebersold, Fabienne Foster‐Witassek, S. Amberg, Miquel Serra‐Burriel, Giorgio Moschovitis , et al. · 2025

AIMS: We aimed to explore atrial fibrillation (AF)-induced productivity losses in working-age atrial fibrillation patients and to estimate atrial fibrillation-related indirect costs. METHODS: Between 2014 and 2017, the Swiss Atrial Fibrill…

Value and demand for genetic information and ambiguity aversion revisited Open

Stefan Felder, Dilek Sevim · 2024

We use the smooth ambiguity model to show that ambiguity aversion increases the value of and demand for genetic information for low prior beliefs of carrying a genetic mutation. We also examine an extension based on the ex ante uncertainty…

Reimbursing Physicians with Unknown Altruism Under Diagnostic Risk Open

Stefan Felder, Mathias Kifmann · 2024

Longitudinal Changes in Health‐Related Quality of Life in Patients With Atrial Fibrillation Open

Fabienne Foster‐Witassek, Helena Aebersold, Stefanie Aeschbacher, Peter Ammann, Jürg H. Beer , et al. · 2023

Background Optimizing health‐related quality of life (HRQoL) is an important aim of atrial fibrillation (AF) treatment. Little is known about patients' long‐term HRQoL trajectories and the impact of patient and disease characteristics. The…

Subjective burden of government-imposed Covid-19 restrictions in Switzerland: Evidence from the 2022 LINK Covid-19 survey Open

Günther Fink, Katharina Förtsch, Stefan Felder · 2023

Background While a large literature has quantified the health and economic impact of COVID-19, estimates on the subjective losses in quality of life due to government imposed restrictions remain scarce. Methods We conducted a nationally re…

Arzneimittel: Placebo bei Engpassbekämpfung Open

Katharina Blankart, Stefan Felder · 2022

Decision Thresholds for Medical Tests Under Ambiguity Aversion Open

Dilek Sevim, Stefan Felder · 2022

We consider medical decision-making under diagnostic and therapeutic uncertainty and analyze how ambiguity aversion affects the decisions to test and treat, thereby contributing to the understanding of the observed heterogeneity of such de…

Do Medicine Shortages Reduce Access and Increase Pharmaceutical Expenditure? A Retrospective Analysis of Switzerland 2015-2020 Open

Katharina Blankart, Stefan Felder · 2022

Medicine shortages have substantially reduced access to pharmaceuticals. Switzerland has experienced shortages on a scale similar to that in other countries. Prices of substitutes available at the time of shortages can be higher or lower, …

Burden of Covid-19 restrictions: National, regional and global estimates Open

Günther Fink, Fabrizio Tediosi, Stefan Felder · 2022

Australian Native Fish Attracted by Jet Flows into Tube Fishways Open

Maryam Farzadkhoo, Richard T. Kingsford, Iain M. Suthers, John William Harris, William L. Peirson , et al. · 2022

Natural rivers have been significantly fragmented by barriers that impede fish migration, leading to a rapid decline in abundance of some freshwater fish species. To remediate the regulated river regimes, fishways are essential to facilita…

LIDAR measurements of air-water flows in a creek Open

Rui Li, Kristen D. Splinter, Stefan Felder · 2022

Accurate measurements of the free-surface of air-water flows are a challenge due to the strong entrainment and entrapment of air caused by the flow’s violent nature and large spatial and temporal variability. Best practice air-water flow i…

Effects of underlying soil roughness on flow patterns in grassed waterways Open

Hanwen Cui, Stefan Felder, Matthias Kramer · 2022

Grass linings on spillways and waterways with mild to moderate slopes can provide ecological advantages such as groundwater replenishment and vegetation growth, while maintaining the functionality of flow conveyance. Design of chutes with …

Lifting fish across barriers with the Tube Fishway: lessons from the laboratory Open

Stefan Felder, William L. Peirson, John H. Harris, Maryam Farzadkhoo, Iain M. Suthers , et al. · 2022

To transfer fish across barriers, fishways are commonly used. A multidisciplinary research team from UNSW Sydney, has made important progress on the operation of a new type of fishway, the Tube Fishway, under controlled conditions in the l…

PROTOTYPE AIR-WATER FLOW MEASUREMENTS IN A TUNNEL CHUTE Open

Benjamin Hohermuth, Robert M. Boes, Stefan Felder · 2022

Air-water flows commonly occur in hydraulic structures such as spillway chutes and low-level outlets. In highvelocity flows, air entrainment is a dominant feature and must be considered for a sound design of these safety-relevant appurtena…

Global Burden of Covid-19 Restrictions: National, Regional and Global Estimates Open

Günther Fink, Fabrizio Tediosi, Stefan Felder · 2021

A large literature has documented the high global mortality and mental health burden associated with the current Covid-19 pandemic. In this paper, we combine newly collected data on subjective reductions in the quality of life with the lat…

Pathways towards democratization of hydro-environment observations and data Open

Daniel Valero, Isabella Schalko, Heide Friedrich, Jorge D. Abad, Daniel B. Bung , et al. · 2021

This White Paper grew out of the collaborative work conducted by several IAHR Technical Committees, with a focus on the Technical Committee on Experimental Methods and Instrumentation. The outcome is a community vision on future pathways a…

Homburg’s Lockdown Analysis: Conclusions without Data and an Appropriate Estimation Model Open

Bernt-Peter Robra, Stefan Felder · 2020

This is a critical response to Homburg (2020) who claimed that lockdowns were superfluous and ineffective. We demonstrate that Homburg’s database is not sufficient to support his claim and that his econometric approach not suitable for an …

Effectiveness of Corona Lockdowns: Homburg's Flawed Analysis Open

Stefan Felder, Bernt-Peter Robra · 2020

This is a comment on Homburg (2020) who claimed that lockdowns were superfluous and ineffective. We demonstrate major flaws: Homburg's data base is not suitable to support his claim and his econometric approach does not allow for an analys…

Best practices for velocity estimations in highly aerated flows with\n dual-tip phase-detection probes Open

Matthias Kramer, Benjamin Hohermuth, Daniel Valero, Stefan Felder · 2019

Dual-tip phase-detection probes can be used to measure flow properties in\ngas-liquid flows. Traditionally, time-averaged interfacial velocities have been\nobtained through cross-correlation analysis of long time-series of phase\nfraction …

Use of cardiac magnetic resonance imaging and single photon emission computed tomography for the diagnosis of stable coronary artery disease in Switzerland Open

Jeanne du Fay de Lavallaz, Michael J. Zellweger, Stefan Felder · 2019

BACKGROUND Direct invasive testing in the diagnosis of stable coronary artery disease (CAD) involves high costs and relevant risks. By comparison, single-photon emission computed tomography (SPECT) and cardiac magnetic resonance imaging (C…

Das Lebensende in der Schweiz - Individuelle und gesellschaftliche Perspektiven Open

Markus Zimmermann, Stefan Felder, Ursula Streckeisen, Brigitte Tag · 2019

Dieses Buch bietet einen verständlich formulierten Überblick über das, was heute zum Lebensende in der Schweiz aus wissenschaftlicher Sicht bekannt ist. Die geburtenstarken Jahrgänge – die sogenannten Babyboomer – werden bald ins hohe Alte…

La Fin de vie en Suisse - Perspectives individuelles et sociales Open

Markus Zimmermann, Stefan Felder, Ursula Streckeisen, Brigitte Tag · 2019

Dans un langage accessible, ce livre propose un aperçu de ce que l’on sait actuellement sur la fin de vie en Suisse du point de vue scientifique. Les personnes nées dans les années de forte natalité (génération du baby-boom) atteindront bi…

No Crowding Out despite Kickbacks: Competition between Gatekeeping GPs Open

Stefan Felder, Erwin Amann · 2017

In health service markets, patients often rely on the advice of their general practitioner (GP) to decide which treatment best fits their needs. Hospitals, in turn, influence GPs referral decisions through kickbacks. We formulate a model w…

Kickbacks in Medical Expert Markets Open

Stefan Felder · 2016

This paper examines patient and overall welfare effects of kickbacks paid by a monopolistic hos-pital to competitive physicians in return for patient referrals. This practice is regarded as unethical and illegal in most cases. On the other…

Studien auf fragwürdiger Basis Open

U Metzger, Stefan Felder · 2015

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Studien auf fragwürdiger Basis Open

U Metzger, Stefan Felder · 2015

Das Statin-Conundrum (zum Zweiten) Open

Nikola Biller‐Andorno, Stefan Felder, Christoph Meier, U Metzger, Brigitte Tag · 2015

Das Siwss Medical Board nimmt Stellung zu den Vorwürfen des vorangegangenen Artikels, begründet nochmals seine Methode und betont, dass die relative Risikoreduktion nicht relevant sei. Nicht vergessen dürfe man, dass jede unnötige Verschre…

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