Michael Hartmann

A multi-site campaign to measure solar-like oscillations in Procyon. I. Observations, Data Reduction and Slow Variations (2008)

Arentoft, Torben, Kjeldsen, Hans, Bedding, Timothy R., Bazot, Michael, Christensen-Dalsgaard, Joergen, Dall, Thomas H., ...

We have carried out a multi-site campaign to measure oscillations in the F5 star Procyon A. We obtained high-precision velocity observations over more than three weeks with eleven telescopes, with...

European consensus conference on diagnosis and treatment of germ cell cancer: a report of the second meeting of the European Germ Cell Cancer Consensus Group (EGCCCG): Part I (2008)

Krege, Susanne, Beyer, Jorg, Souchon, Rainer, Albers, Peter, Albrecht, Walter, Algaba, Ferran, ...

Objectives: The first consensus report presented by the European Germ Cell Cancer Consensus Group (EGCCCG) in the year 2004 has found widespread approval by many colleagues throughout the world. In...

Smart Cards for the FlexiPKI Environment (2007)

Michael Hartmann, Sönke Maseberg, Gmd-sit Darmstadt

Public key cryptography is based on mathematical problems, which are supposed to be hard to solve, but this is not known for sure. That is the reason, why we already presented a public key...

Global and local relaxation of a spin-chain under exact Schroedinger and master-equation dynamics (2005)

Henrich, Markus J., Michel, Mathias, Hartmann, Michael, Mahler, Guenther, Gemmer, Jochen

We solve the Schroedinger equation for an interacting spin-chain locally coupled to a quantum environment with a specific degeneracy structure. The reduced dynamics of the whole spin-chain as well as...

Fourier's Law confirmed for a class of small quantum systems (2005)

Michel, Mathias, Hartmann, Michael, Gemmer, Jochen, Mahler, Guenter

Within the Lindblad formalism we consider an interacting spin chain coupled locally to heat baths. We investigate the dependence of the energy transport on the type of interaction in the system as...

On Which Length Scales Can Temperature Exist in Quantum Systems? (2005)

Hartmann, Michael, Mahler, Guenter, Hess, Ortwin

We consider a regular chain of elementary quantum systems with nearest neighbor interactions and assume that the total system is in a canonical state with temperature $T$. We analyze under what...

On the microscopic limit for the existence of local temperature (2005)

Hartmann, Michael

Recent progress in the synthesis and processing of nano-structured materials and systems calls for an improved understanding of thermal properties on small length scales. In this context, the...

On the microscopic limit for the existence of local temperature (2005)

Hartmann, Michael

Recent progress in the synthesis and processing of nano-structured materials and systems calls for an improved understanding of thermal properties on small length scales. In this context, the...

Intraoperative Messung der zerebralen Mikrozirkulation mittels Laser Doppler Scanning Imager (2005)

Hartmann, Michael

In der Neurochirurgie ist der Einsatz von Hirnretraktoren bei intrakraniellen Operationen kaum noch wegzudenken. Hirnkontusionen und Hirninfarkte stehen in unmittelbarem Zusammenhang mit dieser...

Measurable Consequences of the Local Breakdown of the Concept of Temperature (2004)

Hartmann, Michael, Mahler, Guenther

Local temperature defined by a local canonical state of the respective subsystem, does not always exist in quantum many body systems. Here, we give some examples of how this breakdown of the...

Spectral densities and partition functions of modular quantum systems as derived from a central limit theorem (2004)

Hartmann, Michael, Mahler, Guenter, Hess, Ortwin

Using a central limit theorem for arrays of interacting quantum systems, we give analytical expressions for the density of states and the partition function at finite temperature of such a system,...

Untersuchung von Proteinen mit "Resuscitation-Promoting Factor"-Motiv und der für sie kodierenden Gene in Corynebacterium glutamicum ATCC 13032 (2004)

Hartmann, Michael

Durch Analyse der Gesamtgenomsequenz von Corynebacterium glutamicum wurden zwei offene Leseraster, rpf1 und rpf2, identifiziert, deren abgeleitete Aminosäuresequenzen Ähnlichkeiten mit dem...

Gesundheitsökonomische Evaluationen / (2004)

Hartmann, Michael.

Beitr. teilw. dt., teilw. engl. - Enth. ausserdem 6 Sonderabdr. aus verschiedenen Zeitschr.

Existence of temperature on the nanoscale (2003)

Hartmann, Michael, Mahler, Guenter, Hess, Ortwin

We consider a regular chain of quantum particles with nearest neighbour interactions in a canonical state with temperature $T$. We analyse the conditions under which the state factors into a product...

Schweizer KMU im e-Business : Theoretische Grundlagen und praktische Erfahrungen ausgewählter Pionierunternehmen im Vertrieb / (2003)

Hartmann, Michael.

Thesis (doctoral)--Hochschule St. Gallen für Wirtschafts-, Rechts- und Sozialwissenschaften, 2003.

Zeitlich modulierte Statistik der periodisch gestörten turbulenten Kanalströmung (2001)

Hartmann, Michael

The turbulent channel flow is subjected to a temporal change of the boundary conditions, either by periodic variation of a longitudinal wall speed or, alternatively, by periodic variation of a...

The Psychosocial Outcome of Adolescent-Onset Schizophrenia: A 12-Year Followup (2000)

Lay, Barbara, Blanz, Bernd, Hartmann, Michael, Schmidt, Martin H.

This study examines the educational/occupational outcome and social situation of patients treated for schizophrenia in adolescence (age at admission 11.5–17.9 years; mean 16.0 years). Out of 96...

NICE - New Ideal Coset Encryption (1999)

Michael Hartmann, Sachar Paulus, Tsuyoshi Takagi

Recently, a new public-key cryptosystem constructed on number fields is presented. The prominent theoretical property of the public-key cryptosystem is a quadratic decryption bit complexity of the...

Die iatrogene Fazialisparese [Facialisparese] : Analyse, Beurteilung, Prognose. (1972)

Hartmann, Michael.

Freiburg (Breisgau), Univ., Med. Fak., Diss. 1973. (Nicht f. d. Austausch.).

Untersuchung der Zellproliferation am Omentum maius der Maus während der Graft versus Host Reaktion. (1971)

Hartmann, Michael.

Freiburg (Breisgau), Univ., Fak. f. Biologie, Diss. 1971. (Nicht f. d. Austausch.).

A Cytosolic Arabidopsis d-Xylulose Kinase Catalyzes the Phosphorylation of 1-Deoxy-d-Xylulose into a Precursor of the Plastidial Isoprenoid Pathway1

Hemmerlin, Andréa, Tritsch, Denis, Hartmann, Michael, Pacaud, Karine, Hoeffler, Jean-François, Van Dorsselaer, Alain, ...

Plants are able to integrate exogenous 1-deoxy-d-xylulose (DX) into the 2C-methyl-d-erythritol 4-phosphate pathway, implicated in the biosynthesis of plastidial isoprenoids. Thus, the carbohydrate...

REDUCING NITROGEN LOSSES FROM AGRICULTURAL SYSTEMS: AN INTEGRATED ECONOMIC ASSESSMENT

Hartmann, Michael, Hediger, Werner, Peter, Simon

The loss of reactive nitrogen from agriculture into the environment is a major threat to the global environment and a challenge for agri-environmental policy. We therefore investigate the problem of...

Agriculture's Contribution to Swiss Climate Policy: Results of an Economic Analysis

Hartmann, Michael

Greenhouse gas emissions from Swiss agriculture have been reduced by about 8 % since 1990. Hence, Swiss agriculture has already contributed 13 % to the national Kyoto target, although it is not...

The natriuretic peptide/guanylyl cyclase–A system functions as a stress-responsive regulator of angiogenesis in mice

Kuhn, Michaela, Völker, Katharina, Schwarz, Kristine, Carbajo-Lozoya, Javier, Flögel, Ulrich, Jacoby, Christoph, ...

Cardiac atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP) modulate blood pressure and volume by activation of the receptor guanylyl cyclase–A (GC-A) and subsequent intracellular...

A role for plastids in plant protein isoprenylation

Crowell, Dring N, Hemmerlin, Andréa, Gerber, Esther, Hartmann, Michael, Heintz, Dimitri, Rohmer, Michel, ...

Protein isoprenylation refers to the attachment of a C15 farnesyl or C20 geranylgeranyl moiety to a carboxyl terminal cysteine residue. Because protein isoprenyltransferases are cytosolic enzymes, it...

Alternative Splicing of the Guanylyl Cyclase-A Receptor Modulates Atrial Natriuretic Peptide Signaling*

Hartmann, Michael, Skryabin, Boris V., Müller, Thomas, Gazinski, Alexandra, Schröter, Juliane, Gassner, Birgit, ...

Atrial (ANP) and B-type natriuretic peptides (BNP) modulate blood pressure and volume through the stimulation of cyclic GMP production by their guanylyl cyclase-A (GC-A) receptor. A novel isoform of...