Political Accountability

Palumbo, Antonino

doi:10.4324/9781315246567

Cited by 7 publications

(5 citation statements)

References 8 publications

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“…The QHA describes the Helmholtz free energy as a function of lattice constants and temperature, giving an energy surface that can be utilized to explore the anharmonicity associated with the volume change due to thermal expansion, though the free energy for each lattice is calculated based on the harmonic approximation. We use VASP [46,47] to obtain the vibrational free energy and pyqha package [48] to determine the lattice constants for a given temperature that gives the lowest free energy. To save computational cost, the phonon dispersion and vibrational free energy are generated using nondiagonal supercell approach [32].…”

Section: Theoretical Methods and Computational Detailsmentioning

confidence: 99%

Theoretical and experimental study of temperature effect on electronic and optical properties of TiO<sub>2</sub>: Comparing rutile and anatase

Wuenschell²,

Fryer³

et al. 2020

J. Phys.: Condens. Matter

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To gain fundamental understanding of the high-temperature optical gas-sensing and light-energy conversion materials, we comparatively investigate the temperature effects on the band gap and optical properties of rutile and anatase TiO 2 experimentally and theoretically. Given that the electronic structures of rutile and anatase are fundamentally different, i.e. direct band gap in rutile and indirect gap in anatase, it is not clear whether these materials exhibit different electronic structure renormalizations with temperature. Using ab initio methods, we show that the electron-phonon interaction is the dominant factor for temperature band gap renormalization compared to the thermal expansion. As a result of different contributions from the acoustic and optical phonons, the band gap is found to widen with temperature up to 300 K, and to narrow at higher temperatures. Our calculations suggest that the band gap is narrowed by about 147 meV and 128 meV at 1000 K for rutile and anatase, respectively. Experimentally, for rutile and anatase TiO 2 thin films we conducted UV-Vis transmission measurements at different temperatures, and analyzed band gaps from the Tauc plots. For both TiO 2 phases, the band gap is found to decrease for temperature above 300 K quantitatively, agreeing with our theoretical results. The temperature effects on the dielectric functions, the refractive index, the extinction coefficient as well as the optical conductivity are also investigated. Rutile and anatase show generally similar optical properties, but differences exist in the long wavelength regime above 600 nm, where we found that the dielectric function of rutile decreases while that of anatase increases with temperature increase.

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Section: Theoretical Methods and Computational Detailsmentioning

confidence: 99%

Theoretical and experimental study of temperature effect on electronic and optical properties of TiO<sub>2</sub>: Comparing rutile and anatase

Wuenschell²,

Fryer³

et al. 2020

J. Phys.: Condens. Matter

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“…The public administration literature on accountability is wide and expansive and has been summarized in a number of recent volumes (Bovens et al, 2014;Dubnick & Frederickson, 2014;Palumbo, 2017) and articles (Schillemans, 2013;Yang, 2012). In the literature, accountability is often understood as a mechanism (Bovens, 2010), although there are different understandings and definitions.…”

Section: Accountability Mechanisms In the Public Administration Literaturementioning

confidence: 99%

Lessons from five decades of experimental and behavioral research on accountability: A systematic literature review

Aleksovska

Schillemans

Grimmelikhuijsen

2019

JBPA

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The study of accountability in public administration has developed largely in parallel to the study of accountability in the behavioral sciences. In an effort to bridge this divide, we present a systematic review of the experimental literature on accountability in the behavioral sciences and draw lessons for public administration. We summarize the findings of 266 experiments exploring the effects of accountability mechanisms, presented in 211 articles published between 1970 and 2016. These findings are organized in four broad themes: effects of accountability on decision-making, behavior, and outcomes; and effects of the specific characteristics of accountability mechanisms. The review shows numerous desirable effects of accountability on individual decision-making and behaviors. This is of high relevance to public administration studies on accountability as it sheds light on causal mechanisms and allows for a balanced perspective on positive and negative effects of various types of accountability mechanisms. It is however not always possible to translate findings from behavioral research directly to public administration settings. We discuss the meaning and value of our findings for public administration studies and develop an agenda for future behavioral research on public sector accountability.

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“…With so many bureaucratic actors involved at so many different levels, including in turn different institutional arrangements for cooperation, different voting rules or the absence thereof, it becomes virtually impossible to pinpoint who exactly contributed to which part of government action, effectively diluting accountability and reducing throughput legitimacy (e.g. Papadopoulos, 2007;Palumbo, 2010;Gustavsson et al, 2009). In accountability studies, not exclusive to the EU, this phenomenon is known as the 'problem of many hands' (Thompson, 1980).…”

Section: Eu Public Administration As a Bermuda Trianglementioning

confidence: 99%

Public administration in the European Union

Brandsma

2024

Handbook on European Union Public Administration

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Political Accountability

Cited by 7 publications

References 8 publications

Theoretical and experimental study of temperature effect on electronic and optical properties of TiO<sub>2</sub>: Comparing rutile and anatase

Theoretical and experimental study of temperature effect on electronic and optical properties of TiO<sub>2</sub>: Comparing rutile and anatase

Lessons from five decades of experimental and behavioral research on accountability: A systematic literature review

Public administration in the European Union

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