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Figueroa, C.A. (author), Aguilera, Adrian (author), Hoffmann, Thomas J. (author), Fukuoka, Yoshimi (author)Background: Women are less physically active, report greater perceived barriers for exercise, and show higher levels of depressive symptoms. This contributes to high global disability. The relationship between perceived barriers for physical activity and depressive symptoms in women remains largely unexplored. The aims of this cross-sectional...journal article 2024
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Walker, David W. (author), Vergopolan, Noemi (author), Cavalcante, Louise (author), Smith, Kelly Helm (author), Agoungbome, David (author), Almagro, André (author), Apurv, Tushar (author), Dahal, Nirmal Mani (author), Hoffmann, David (author)Flash droughts, characterized by rapid onset and intensification, are increasingly occurring as a consequence of climate change and rising temperatures. However, existing hydrometeorological definitions fail to encompass the full range of flash droughts, many of which have distinct local physical attributes. Consequently, these events often...journal article 2023
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Ehlers, Svenja (author), Klein, Marco (author), Heinlein, A. (author), Wedler, Mathies (author), Desmars, Nicolas (author), Hoffmann, Norbert (author), Stender, Merten (author)Accurate short-term predictions of phase-resolved water wave conditions are crucial for decision-making in ocean engineering. However, the initialization of remote-sensing-based wave prediction models first requires a reconstruction of wave surfaces from sparse measurements like radar. Existing reconstruction methods either rely on...journal article 2023
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Hoffmann, Fabian (author), Glassmeier, F. (author), Yamaguchi, Takanobu (author), Feingold, Graham (author)Stratocumulus occur in closed- or open-cell states, which tend to be associated with high or low cloud cover and the absence or presence of precipitation, respectively. Thus, the transition between these states has substantial implications for the role of this cloud type in Earth’s radiation budget. In this study, we analyze transitions between...journal article 2023
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Glassmeier, F. (author), Hoffmann, Fabian (author), Feingold, Graham (author), Gryspeerdt, Edward (author), van Hooft, J.A. (author), Yamaguchi, Takanobu (author), Johnson, Jill S. (author), Carslaw, Ken S. (author)Data-driven quantification and parameterization of cloud physics in general, and of aerosol-cloud interactions in particular, rely on input data from observations or detailed simulations. These data sources have complementary limitations in terms of their spatial and temporal coverage and resolution; simulation data has the advantage of readily...conference paper 2022
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Hoffmann, Timo (author), Renes, Sander (author)Corporate boards, experts panels, parliaments, cabinets, and even nations all take important decisions as a group. Selecting an efficient decision rule to aggregate individual opinions is paramount to the decision quality of these groups. In our experiment we measure revealed preferences over and efficiency of several important decision rules....journal article 2022
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Stegeman, B. (author), Hoffmann, Rob (author), Hopman, Victor (author), Langeveld, J.G. (author), Clemens-Meyer, Franҫois (author)The main application of the mobile geo-electrical measurement is the detection of the presence and determining the location of leakage in sewer systems. To do so, this method relies on the increase in the measured electrical current between an electrode inside and an electrode outside the sewer system. To use this technique for the...journal article 2022
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Gryspeerdt, Edward (author), Glassmeier, F. (author), Feingold, Graham (author), Hoffmann, Fabian (author), Murray-Watson, Rebecca J. (author)The aerosol impact on liquid water path (LWP) is a key uncertainty in the overall climate impact of aerosol. However, despite a significant effort in this area, the size of the effect remains poorly constrained, and even the sign is unclear. Recent studies have shown that the relationship between droplet number concentration (Nd) and LWP is...journal article 2022
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Kuruma, Kazuhiro (author), Pingault, B.J. (author), Chia, Cleaven (author), Renaud, Dylan (author), Hoffmann, Patrick (author), Iwamoto, Satoshi (author), Ronning, Carsten (author), Lončar, Marko (author)We demonstrate optical coupling between a single tin-vacancy (SnV) center in diamond and a free-standing photonic crystal nanobeam cavity. The cavities are fabricated using quasi-isotropic etching and feature experimentally measured quality factors as high as ∼11 000. We investigate the dependence of a single SnV center's emission by...journal article 2021
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Glassmeier, F. (author), Hoffmann, Fabian (author), Johnson, Jill S. (author), Yamaguchi, Takanobu (author), Carslaw, Ken S. (author), Feingold, Graham (author)The effect of anthropogenic aerosol on the reflectivity of stratocumulus cloud decks through changes in cloud amount is a major uncertainty in climate projections. In frequently occurring nonprecipitating stratocumulus, cloud amount can decrease through aerosol-enhanced cloud-top mixing. The climatological relevance of this effect is debated...journal article 2021
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Hoffmann, Sabine (author), Feldmann, Ulrike (author), Bach, Peter M. (author), Binz, Christian (author), Farrelly, Megan (author), Frantzeskaki, Niki (author), Hiessl, Harald (author), Inauen, Jennifer (author), Scholten, L. (author)Recent developments in high- and middle-income countries have exhibited a shift from conventional urban water systems to alternative solutions that are more diverse in source separation, decentralization, and modularization. These solutions include nongrid, small-grid, and hybrid systems to address such pressing global challenges as climate...journal article 2020
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Hoffmann, Sandra (author), Devleesschauwer, Brecht (author), Aspinall, Willy (author), Cooke, R.M. (author), Corrigan, Tim (author), Haverlaar, Arie (author), Angulo, Frederick (author), Gibb, Herman (author), Kirk, Martyn (author), Lake, Robin (author), Speybroeck, Niko (author), Torgerson, Paul (author), Hald, Tine (author)Background Recently the World Health Organization, Foodborne Disease Burden Epidemiology Reference Group (FERG) estimated that 31 foodborne diseases (FBDs) resulted in over 600 million illnesses and 420,000 deaths worldwide in 2010. Knowing the relative role importance of different foods as exposure routes for key hazards is critical to...journal article 2017
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Wenneker, I. (author), Hoffmann, Rob (author), Hofland, Bas (author)The new Delta Flume of Deltares (300 m long x 5 m wide x 9.5 m deep) is used to test wave interaction with, among others, sea defences (dikes, dunes), coastal structures (e.g. breakwaters, revetments and jetties), eco-dynamic designs and<br/>coastal morphology. The present paper presents the first outcomes of the performance tests of the flume...conference paper 2016
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Sutanto, S.J. (author), Van den Hurk, B. (author), Dirmeyer, P.A. (author), Seneviratne, S.I. (author), Röckmann, T. (author), Trenberth, K.E. (author), Blyth, E.M. (author), Wenninger, J. (author), Hoffmann, G. (author)Current techniques to disentangle the evaporative fluxes from the continental surface into a contribution evaporated from soils and canopy, or transpired by plants, are under debate. Many isotope-based studies show that transpiration contributes generally more than 70% to the total evaporation, while other isotope-independent techniques lead to...journal article 2014
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- Sutanto, S.J. (author), Van den Hurk, B. (author), Hoffmann, G. (author), Wenninger, J. (author), Dirmeyer, P.A. (author), Seneviratne, S.I. (author), Röckmann, T. (author), Trenberth, K.E. (author), Blyth, E.M. (author) journal article 2014
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Krier, R. (author), Matgen, P. (author), Goergen, K. (author), Pfister, L. (author), Hoffmann, L. (author), Kirchner, J.W. (author), Uhlenbrook, S. (author), Savenije, H.H.G. (author)The complexity of hydrological systems and the necessary simplification of models describing these systems remain major challenges in hydrological modeling. Kirchner's (2009) approach of inferring rainfall and evaporation from discharge fluctuations by “doing hydrology backward” is based on the assumption that catchment behavior can be...journal article 2012
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- Onderka, M. (author), Krein, A. (author), Wrede, S. (author), Martinez-Carreras, N. (author), Hoffmann, L. (author) journal article 2012
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Mosendz, O. (author), Vlaminck, V. (author), Pearson, J.E. (author), Fradin, F.Y. (author), Bauer, G.E.W. (author), Bader, S.D. (author), Hoffmann, A. (author)Spin pumping is a mechanism that generates spin currents from ferromagnetic resonance over macroscopic interfacial areas, thereby enabling sensitive detection of the inverse spin Hall effect that transforms spin into charge currents in nonmagnetic conductors. Here we study the spin-pumping-induced voltages due to the inverse spin Hall effect in...journal article 2010
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Mosendz, O. (author), Pearson, J.E. (author), Fradin, F.Y. (author), Bauer, G.E.W. (author), Bader, S.D. (author), Hoffmann, A. (author)Spin Hall effects intermix spin and charge currents even in nonmagnetic materials and, therefore, ultimately may allow the use of spin transport without the need for ferromagnets. We show how spin Hall effects can be quantified by integrating Ni80Fe20|normal metal (N) bilayers into a coplanar waveguide. A dc spin current in N can be generated by...journal article 2010
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Hoffmann, S. (author)Risk awareness and personal preparedness are seen to be important parameters in an integrated risk management scheme today. This study is contributing to the knowledge base about the perception of risk. Regarding the risk of storm-surges, an assessment of the perception and the status of personal preparedness of the people are addressed in an...report 2008
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