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Université de Fribourg

Freedom of Contract in the 19th Century: Mythology and the Silence of the Sources : Review Essay – Sibylle Hofer’s Freiheit ohne Grenzen? privatrechtstheoretische Diskussionen im 19. Jahrhundert

Abegg, Andreas ; Thatcher, Annemarie

In: German Law Journal, 2004, vol. 5, p. 101-114

In her legal history postdoctoral Habilitation-study Freiheit ohne Grenzen? (Unlimited Freedom?), Sibylle Hofer comes to the conclusion that despite a large absence of discourse on contractual freedom the perception of unlimited freedom in the 19th Century private law theorie cannot be confirmed, instead this is more of a myth. By exploring the larger context of societal development at the...

Université de Fribourg

Regulation of Hybrid Networks at the Intersection between Governmental Administration and Economic Self-Organisation

Abegg, Andreas

In: Contractual Networks: Legal Issues of Multilateral Cooperation, 2009, p. 255-289

Today’s increasingly co-operative relations between the state and private persons have brought numerous new problems to the law. It may even be held that the new types of ‘co-operationism’ between the state and private persons has plunged the law into deep crisis. This is because by freeing the administration from the constraints which are binding by statute, on the one hand, and...

Université de Fribourg

Civil Society Constitutionalism: The Power of Contract Law

Abegg, Andreas ; Amstutz, Marc ; Karavas, Vaios

In: Indiana Journal of Global Legal Studies, 2007, vol. 14, no. 2, p. 235-258

This article argues that the vision of a social law of contract is exhibited in the judgment of the Swiss Federal Court in Post v. Verein gegen Tierfabriken (“VgT”). The judgment is one of a law of contract that interacts with a community of the subjects instead of the individual subjects of a community. This paper contends that law today has the task of providing for the areas of social...

Université de Fribourg

The Contracting State and Its Courts : A historical comparative view on contracts between the state and private persons

Abegg, Andreas

In: Papers Presented in the Center for the Study of Law and Society Bag Lunch Speaker Series, 2009, no. 38, p. 1-33

Since the 1970s in the US, Europe, and indeed throughout the world, there has been a move to transfer public power to private entities, to replace public agencies with private contractors. Alongside this political and administrative development a new scholarly school has developed: one which argues that contract will become the new form of regulation for the emergent public services provided...

Université de Fribourg

Magnetic-field uniformity in neutron electric-dipole-moment experiments

Abel, C. ; Ayres, N. J. ; Baker, T. ; Ban, G. ; Bison, G. ; Bodek, K. ; Bondar, V. ; Crawford, C. B. ; Chiu, P.-J. ; Chanel, E. ; Chowdhuri, Z. ; Daum, M. ; Dechenaux, B. ; Emmenegger, S. ; Ferraris-Bouchez, L. ; Flaux, P. ; Geltenbort, P. ; Green, K. ; Griffith, W. C. ; Grinten, M. van der ; Harris, P. G. ; Henneck, R. ; Hild, N. ; Iaydjiev, P. ; Ivanov, S. N. ; Kasprzak, M. ; Kermaidic, Y. ; Kirch, K. ; Koch, H.-C. ; Komposch, S. ; Koss, P. A. ; Kozela, A. ; Krempel, J. ; Lauss, B. ; Lefort, T. ; Lemiere, Y. ; Leredde, A. ; Mohanmurthy, P. ; Pais, D. ; Piegsa, F. M. ; Pignol, G. ; Quéméner, G. ; Rawlik, M. ; Rebreyend, D. ; Ries, D. ; Roccia, S. ; Rozpedzik, D. ; Schmidt-Wellenburg, P. ; Schnabel, A. ; Severijns, N. ; Virot, R. ; Weis, Antoine ; Wursten, E. ; Wyszynski, G. ; Zejma, J. ; Zsigmond, G.

In: Physical Review A, 2019, vol. 99, no. 4, p. 042112

Magnetic-field uniformity is of the utmost importance in experiments to measure the electric dipole moment of the neutron. A general parametrization of the magnetic field in terms of harmonic polynomial modes is proposed, going beyond the linear- gradients approximation. We review the main undesirable effects of nonuniformities: depolarization of ultracold neutrons and Larmor frequency shifts...

Université de Fribourg

Search for axionlike dark matter through nuclear spin precession in electric and magnetic fields

Abel, C. ; Ayres, N.?J. ; Ban, G. ; Bison, G. ; Bodek, K. ; Bondar, V. ; Daum, M. ; Fairbairn, M. ; Flambaum, V.?V. ; Geltenbort, P. ; Green, K. ; Griffith, W.?C. ; Grinten, M. van der ; Grujiæ, Z.?D. ; Harris, P.?G. ; Hild, N. ; Iaydjiev, P. ; Ivanov, S.?N. ; Kasprzak, M. ; Kermaidic, Y. ; Kirch, K. ; Koch, H.-C. ; Komposch, S. ; Koss, P.?A. ; Kozela, A. ; Krempel, J. ; Lauss, B. ; Lefort, T. ; Lemi?re, Y. ; Marsh, D.?J.?E. ; Mohanmurthy, P. ; Mtchedlishvili, A. ; Musgrave, M. ; Piegsa, F.?M. ; Pignol, G. ; Rawlik, M. ; Rebreyend, D. ; Ries, D. ; Roccia, S. ; Rozpêdzik, D. ; Schmidt-Wellenburg, P. ; Severijns, N. ; Shiers, D. ; Stadnik, Y.?V. ; Weis, Antoine ; Wursten, E. ; Zejma, J. ; Zsigmond, G.

In: Physical Review X, 2017, vol. 7, no. 4, p. 041034

We report on a search for ultralow-mass axionlike dark matter by analyzing the ratio of the spin-precession frequencies of stored ultracold neutrons and 199Hg atoms for an axion-induced oscillating electric dipole moment of the neutron and an axion-wind spin-precession effect. No signal consistent with dark matter is observed for the axion mass range 10−24≤ma≤10−17 eV. Our null result...

Université de Fribourg

Mitophagy as a stress response in mammalian cells and in respiring S. cerevisiae

Abeliovich, Hagai ; Dengjel, Jörn

In: Biochemical Society Transactions, 2016, vol. 44, no. 2, p. 541–545

The degradation of malfunctioning or superfluous mitochondria in the lysosome/vacuole is an important housekeeping function in respiring eukaryotic cells. This clearance is thought to occur by a specific form of autophagic degradation called mitophagy, and plays a role in physiological homoeostasis as well as in the progression of late-onset diseases. Although the mechanism of bulk...

Université de Fribourg

Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet

Abermann, Jakob ; As, Dirk Van ; Wacker, Stefan ; Langley, Kirsty ; Machguth, Horst ; Fausto, Robert Schjøtt

In: Journal of Glaciology, 2019, vol. 65, no. 250, p. 263–269

We show a strong difference in surface mass and energy balance of a mountain glacier and two sites on the ice sheet at 64°N in West Greenland using stake and automated weather station observations. Net surface mass balance is on average 2.2 m w.e. less negative at the coast compared with the ice sheet in the same elevation. We find a larger energy turnover at the ice sheet margin on...

Université de Fribourg

A Boundary Property for Upper Domination

AbouEisha, Hassan ; Hussain, Shahid ; Lozin, Vadim ; Monnot, Jérôme ; Ries, Bernard ; Zamaraev, Viktor

In: Lecture Notes in Computer Science, 2016, vol. 9843, p. 229-240

An upper dominating set in a graph is a minimal (with respect to set inclusion) dominating set of maximum cardinality. The problem of finding an upper dominating set is generally NP-hard, but can be solved in polynomial time in some restricted graph classes, such as P4-free graphs or 2K2-free graphs. For classes defined by finitely many forbidden induced subgraphs, the boundary separating...

Université de Fribourg

Upper Domination : Towards a Dichotomy Through Boundary Properties

AbouEisha, Hassan ; Shahid, Hussain ; Lozin, Vadim ; Monnot, Jérôme ; Ries, Bernard ; Zamaraev, Viktor

In: Algorithmica, 2018, vol. 80, no. 10, p. 2799-2817

Anupper dominating set in a graph is a minimal dominating set of maximum cardinality. The problem of finding an upper dominating set is generally NP-hard.We study the complexity of this problem in finitely defined classes of graphs and conjecture that the problem admits a complexity dichotomy in this family. A helpful tool to study the complexity of an algorithmic problem is the notion of...