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Articles by Van Hemert
The role of performance pressure during shootouts in soccer
Rob Van Hemert * and John Van Der Kamp ** (*) University of Amsterdam Business School, Amsterdam, The Netherlands (**) Vrije Universiteit Amsterdam, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Amsterdam, The Netherlands Citation Van Hemert, R., Van Der Kamp, J. (2025). The role of performance pressure during shootouts in soccer. International Journal of Sport Psychology, 56(2), 105-118.
Usutu virus NS4A induces autophagy and is targeted by the selective autophagy receptor p62/SQSTM1 for degradation - Virology Journal
A549, BHK-21J [20], Vero CCL-81, Huh7 (Japanese Collection of Research Bioresources), H1299/ACE2 [21] and 293T (ATCC CRL-3216) cells were all grown at 37 °C in a 5% CO2 incubator. A549 and Vero CCL-81 cells were maintained in Dulbecco’s modified Eagle’s medium (DMEM, Gibco) supplemented with 8% fetal calf serum (FCS, Capricorn Scientific), and 50 units/mL of penicillin/streptomycin (p/s, Sigma-Aldrich).
Close-Range Photogrammetry Application to Monitor Levee Erosion in Case of Wave Overtopping
Get full access to this article View all available purchase options and get full access to this article. Data Availability Statement DEMs models, obtained from Agiosoft Metashape, used during this study are available on UCLouvain repository Dataverse (https://doi.org/10.14428/DVN/IW7BTM) and on Polder2Cs’ website (https://polder2csknowledge.smartdata2030.com/public_activities/).
The clinical effectiveness of a self-management intervention for patients with persistent depressive disorder and their partners/caregivers: results from a multicenter, pragmatic randomized controlled trial | Trials | Full Text
The study was a mixed-methods, multicenter, pragmatic randomized controlled trial (RCT) that compared PPEP4All-PDD to CAU in patients with PDD. The pragmatic randomized controlled trial was selected to investigate PPEP4All-PDD in a way that mimics the real-world experience of the participating mental health clinics (e.g., the intervention was provided by trained mental health professionals of the clinic and inclusion criteria reflected the usual patient with PDD in the clinic).
Percutaneous coronary intervention in patients undergoing transcatheter aortic valve implantation: a systematic review and meta-analysis - Netherlands Heart Journal
Systematic search The systematic search yielded 1640 studies. A total of 14 studies—13 observational studies and 1 randomised controlled trial (RCT)—were included in this meta-analysis (see Figure S1 in Electronic Supplementary Material), with a total of 3838 patients [8,9,10,11,12,13,14,15,16,17,18,19,20,21]. Importantly, different definitions for significant CAD were used, with cut-off values for significant lesions ranging from 50% to 75% obstruction in a major coronary artery.
An Investor’s Guide to Crypto
29 Pages Posted: 2 Jun 2022 Date Written: May 31, 2022 Abstract We provide practical insights for investors seeking exposure to the growing cryptocurrency space. Today, crypto is much more than just bitcoin, which historically dominated the space but accounted for just a 21% share of total crypto trading volume in 2021. We discuss a wide variety of tokens, highlighting both their functionality and their investment properties. We critically compare popular valuation methods.
The Best Strategies for Inflationary Times
32 Pages Posted: 29 Mar 2021 Last revised: 25 May 2021 Date Written: May 25, 2021 Abstract Over the past three decades, a sustained surge in inflation has been absent in developed markets. As a result, investors face the challenge of having limited experience and no recent data to guide the repositioning of their portfolios in the face of heighted inflation risk.
Small-Molecule Inhibitors of Chikungunya Virus: Mechanisms of Action and Antiviral Drug Resistance
Minireview Kristina Kovacikova, Martijn J. van Hemert DOI: 10.1128/AAC.01788-20 ABSTRACT Chikungunya virus (CHIKV) is a mosquito-transmitted alphavirus that has spread to more than 60 countries worldwide. CHIKV infection leads to a febrile illness known as chikungunya fever (CHIKF), which is characterized by long-lasting and debilitating joint and muscle pain.
Strategic Risk Management: Out-of-Sample Evidence from the COVID-19 Equity Selloff
11 Pages Posted: 3 Aug 2020 Date Written: July 18, 2020 Abstract Over the 2016-2019 period, we released a series of research papers on the topic of “strategic risk management”, or the embedding of risk management into investment strategy design. We show that key risk controls that we introduced materially helped during the sharp equity market selloff in February-March 2020, when the COVID-19 pandemic accelerated.
Drawdowns
19 Pages Posted: 24 Apr 2020 Last revised: 5 May 2020 Date Written: May 4, 2020 Abstract Common risk metrics reported in academia include volatility, skewness, and factor exposures. The maximum drawdown statistic is rarely calculated, perhaps because it is path dependent and estimated with greater uncertainty. In practice, however, asset managers and fiduciaries routinely use the drawdown statistic for fund allocation and redemption decisions.
The Best of Strategies for the Worst of Times: Can Portfolios be Crisis Proofed?
26 Pages Posted: 31 May 2019 Date Written: May 17, 2019 Abstract In the late stages of long bull markets, a popular question arises: What steps can an investor take to mitigate the impact of the inevitable large equity correction? However, hedging equity portfolios is notoriously difficult and expensive. We analyze the performance of different tools that investors could deploy.
Strategic Rebalancing
25 Pages Posted: 17 Feb 2019 Last revised: 20 Dec 2019 Date Written: December 19, 2019 Abstract A mechanical rebalancing strategy, such as a monthly or quarterly reallocation towards fixed portfolio weights, is an active strategy. Winning asset classes are sold and losers are bought. During crises, when markets are often trending, this can lead to substantially larger drawdowns than a buy-and-hold strategy.
The Impact of Volatility Targeting
28 Pages Posted: 17 May 2018 Last revised: 11 Jul 2018 Date Written: June 25, 2018 Abstract Recent studies show that volatility-managed equity portfolios realize higher Sharpe ratios than portfolios with a constant notional exposure. We show that this result only holds for “risk assets”, such as equity and credit, and link this to the so-called leverage effect for those assets. In contrast, for bonds, currencies, and commodities the impact of volatility targeting on the Sharpe ratio is negligible.
Trend Following: Equity and Bond Crisis Alpha
19 Pages Posted: 30 Aug 2016 Date Written: August 30, 2016 Abstract We study time-series momentum (trend-following) strategies in bonds, commodities, currencies and equity indices between 1960 and 2015. We find that momentum strategies performed consistently both before and after 1985, periods which were marked by strong bear and bull markets in bonds respectively. We document a number of important risk properties.
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