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Université de Neuchâtel

Plastoglobules: versatile lipoprotein particles in plastids

Bréhélin, Claire ; Kessler, Felix ; van Wijk, Klaas J.

In: Trends in Plant Science, 2007, vol. 12, no. 6, p. 260-266

Plastoglobules are plastid-localized lipoprotein particles that contain tocopherols and other lipid isoprenoid-derived metabolites, as well as structural proteins named plastoglobulins. Surprisingly, recent publications show that plastoglobules contain enzymes involved in the metabolism of these secondary metabolites, as well as enzymes of unknown function. The size and number of plastoglobules...

Université de Neuchâtel

Electrochemiluminescent hybridization chip with electric field aided mismatch discrimination

Spehar-Deleze, Anna-Maria ; Schmidt, Laurette ; Neier, Reinhard ; Kulmala, Sakari ; de Rooij, Nico ; Koudelka-Hep, Milena

In: Biosensors and Bioelectronics, 2006, vol. 22, no. 5, p. 722-729

This paper describes a heterogeneous DNA-hybridization assay based on electrochemiluminescence (ECL) detection on gold electrodes. Short, 15-mer oligonucleotides were conjugated with a synthesized electrochemiluminescent label, bis(2,2′-bipyridine)-5-isothiocyanato-1,10-phenanthroline ruthenium(II) at the amino-modified 5′-end. Gold electrodes were derivatized with 15-mer oligonucleotide...

Université de Neuchâtel

Décollement tectonics in the Jura forelandfold-and-thrust belt

Sommaruga, Anna

In: Marine and Petroleum Geology, 1999, vol. 16, no. 2, p. 111-134

Interpretation of more than 1500 km of industry seismic reflection lines from the Swiss and French Jura Mountains and the western Swiss Molasse Basin demonstrates that theMesozoic and Cenozoic cover of the Jura fold-and-thrust belt has been deformed over a veryweak basal décollement and displaced for many kilometers toward the NW, and that thebasement is not involved. A depth to the basement map...

Université de Neuchâtel

Fluid circulation, progressive deformation and mass-transfer processes in the upper crust: the example of basement-cover relationships in the External Crystalline Massifs, Switzerland

Marquer, Didier ; Burkhard, Martin

In: Journal of Structural Geology, 1992, vol. 14, no. 8-9, p. 1047-1057

Basement and cover rocks of the external zone in the Swiss Alps are affected by Tertiary ductile deformation under greenschist facies conditions (300–450°C; 3–4.5 kbar). The analyses of stable isotope systematics of veins and shear zones, as well as variation profiles of chemical elements across major shear zones, distinguish two types of fluid-rock interactions. (i) Closed systems: most...

Université de Neuchâtel

Shear zone patterns and strain distribution at the scale of a Penninic nappe: the Suretta nappe (Eastern Swiss Alps)

Marquer, Didier ; Challandes, Nathalie ; Baudin, Thierry

In: Journal of Structural Geology, 1996, vol. 18, no. 6, p. 753-764

Shear zone patterns within the Suretta nappe of the Swiss Alps are studied in order to understand finite strain and bulk tectonic displacements. The Suretta nappe is chosen for two main reasons; the availability of late Variscan granites deformed during Alpine tectonics only, and because of continuous outcrop from bottom to top of the nappe. This Alpine nappe recorded two major ductile...

Université de Neuchâtel

Passive and active two-dimensional photonic crystal components

Märki, Iwan ; Herzig, Hans-Peter (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2006 ; 1932.

Photonic crystals are periodic dielectric structures having periodicity of the order of the wavelength. Consequently, they offer the ability to control the propagation of electromagnetic waves in a similar way as the periodic potential aspects the electron motion in a semiconductor crystal. By choosing the parameters of the photonic crystal, desired dispersion characteristics such as band gaps...

Université de Neuchâtel

Developments for double-beta-decay techniques, related to the EXO experiment

Weber, Patrick ; Vuilleumier, J.-L. (Dir.)

Thèse de doctorat : Université de Neuchâtel, 2006 ; 1930.

This thesis work has been done in the Particles Physics Group from Neuchâtel University and within the EXO international collaboration. It presents the EXO experiment current status and the contributions from Neuchâtel to this neutrino experiment. EXO—acronym for Enriched Xenon Observatory for double-betadecay—is aimed to study the intrinsic behavior of neutrino, particularly their...

Université de Neuchâtel

A new structural interpretation for the emplacement of the Masirah ophiolites (Oman): a main Paleocene intra-oceanic thrust = Une nouvelle interprétation tectonique de l'ophiolite de Masirah (Oman) : un chevauchement intra-océanique paléocène

Marquer, Didier ; Peters, Tjerk ; Gnos, E.

In: Geodinamica Acta (Paris), 1995, vol. 8, no. 1, p. 13-19

Les nouvelles données géologiques et structurales montrent que la croûte océanique de l'île de Masirah est constituée de deux nappes distinctes. Les plis à vergence sud et d'axes de direction Est-Ouest, les lineations d'étirement Nord-Sud et les critères cinématiques attestent d'un chevauchement majeur de l'unité supérieure vers le Sud. Le chevauchement est postérieur au dépôt des...

Université de Neuchâtel

Early Cretaceous intra-oceanic rifting in the Proto-Indian Ocean recorded in the Masirah Ophiolite, Sultanate of Oman

Marquer, Didier ; Mercolli, Ivan ; Peters, Tjerk

In: Tectonophysics, 1998, vol. 292, no. 1-2, p. 1-16

The Masirah Ophiolite (Sultanate of Oman) was part of an oceanic basin (Proto-Indian Ocean) formed by the break-up of Gondwana in Late Jurassic times similar to the Somali basin. It was obducted onto the Arabian continental margin in the Early Paleocene, 100 Ma after its formation. Hence, it is possible to investigate the different tectonic and magmatic processes that have affected the oceanic...