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Coulomb distortion of relativistic electrons in the nuclear electrostatic field

Aste, A. ; von Arx, C. ; Trautmann, D.

In: The European Physical Journal A - Hadrons and Nuclei, 2005, vol. 26, no. 2, p. 167-178

Université de Neuchâtel

Fabrication and characterization of MEMS alkali vapor cells used in chip-scale atomic clocks and other atomic devices

Karlen, Sylvain ; Mileti, Gaetano (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2018.

Atomic clocks are timekeeping devices that can achieve extreme performance in terms of stability and accuracy. Behind this name, hides a variety of different systems which size and complexity can be considerably different depending on their applications. The primary frequency standards used for the realization of the second and the clocks mounted on the Galileo satellite positioning system are...

Université de Fribourg

Imagerie de la néoangiogenèse en médecine nucléaire = Neoangiogenesis imaging in nuclear medicine

Deshayes, E. ; Dunet, V. ; Rüegg, Curzzio ; Prior, J.O.

In: Médecine Nucléaire, 2012, vol. 38, no. 10, p. 619–626

The formation of new vessels, a process referred to as neoangiogenesis, is one of the key pathophysiological mechanisms in the development and progression of cancer. It contributes to tumour growth and dissemination of neoplastic cells and can determine response or resistance to anticancer therapies. It involves different signaling pathways including the vascular endothelial growth factor (VEGF)...

Université de Fribourg

Nanosecond lifetimes and electromagnetic transition strengths in ¹⁹⁶Au

Petkov, P. ; Jolie, J. ; Heinze, S. ; Drissi, Slah-Eddine ; Dorthe, Muriel ; Gröger, Jochen ; Schenker, Jean-Luc

In: Nuclear Physics A, 2007, vol. 796, no. 1-4, p. 1-10

Nanosecond lifetime measurements were performed in ¹⁹⁶Au by means of the pulsed-beam technique. Using the centroid-shift method, one new lifetime has been determined and three known have been re-measured. The data for the transition probabilities are compared to the predictions of the extended supersymmetry for ¹⁹⁶Au. The comparison reveals a partial agreement, which can be considered...

Université de Fribourg

Properties of ¹¹²Cd from the (n,n',γ) reaction: Lifetimes and transition rates

Garrett, P. E. ; Green, K. L. ; Lehmann, H. ; Jolie, J. ; McGrath, C. A. ; Yeh, M. ; Yates, S. W.

In: Physical Review C, 2007, vol. 75, p. 054310

Lifetimes of levels below 4 MeV in ¹¹²Cd have been measured using the Doppler shift attenuation technique following inelastic scattering of monoenergetic neutrons. Reduced transition rates are determined using the results of previous studies and the current lifetimes. The electromagnetic properties of ¹¹²Cd are outlined, and together with results from previous nucleon-transfer studies and...

Université de Fribourg

Mitochondrial tRNA import in the parasitic protozoon "Trypanosoma brucei" and its consequences on mitochondrial translation

Charrière, Fabien ; Schneider, André (Dir.) ; Linder, Patrick (Codir.)

Thèse de doctorat : Université de Fribourg, 2006 ; no 1544.

The protozoon parasite Trypanosoma brucei is the causing agent of human sleeping sickness. Besides its clinical importance T. brucei is also an excellent model for basic research since it has many unique features. The mitochondrion of T. brucei, for example, lacks tRNA genes. The tRNAs required for mitochondrial translation are therefore encoded in the nucleus and imported from the cytosol [1]....


Asymptotic properties of wireless multi-hop networks

Dousse, Olivier ; Thiran, Patrick (Dir.)

Thèse sciences Ecole polytechnique fédérale de Lausanne EPFL : 2005 ; no 3310.