Jens Hoffmann

Sagopilone crosses the blood-brain barrier in vivo to inhibit brain tumor growth and metastases (2009)

Hoffmann, Jens, Fichtner, Iduna, Lemm, Margit, Lienau, Philip, Hess-Stumpp, Holger, Rotgeri, Andrea, ...

The aim of this study was to determine the efficacy of sagopilone (ZK-EPO), a novel epothilone, compared with other anticancer agents in orthotopic models of human primary and secondary brain tumors....

Ionic Fragmentation Channels in Electron Collisions of Small Molecular Ions (2008)

Hoffmann, Jens

Dissociative Recombination (DR) is one of the most important loss processes of molecular ions in the interstellar medium (IM). Ion storage rings allow to investigate these processes under realistic...

1 Abstract Multimodal Interaction for Mobile Environments (2007)

Horst Rössler, Jürgen Sienel, Wieslawa Wajda, Jens Hoffmann, Michaela Kostrzewa

This paper describes an approach for offering web-based multimodal services in mobile environments. After the definition of requirements a first step for an implementation is presented, that will be...

Zur Friedel-Crafts-Alkylierung und Acylierung in Gegenwart ionischer Flüssigkeiten (2006)

Hoffmann, Jens

Gegenstand dieser Arbeit war die Untersuchung von Friedel-Crafts-Reaktionen in Gegenwart ionischer Flüssigkeiten. Dazu wurden Möglichkeiten des Einsatzes dieser Verbindungsklasse weitergehend...

The contribution of sulphuric acid to atmospheric particle formation and growth: a comparison between boundary layers in Northern and Central Europe. (2005)

Fiedler, Verena, Dal Maso, Miikka, Boy, Michael, Aufmhoff, Heinfried, Hoffmann, Jens, Schuck, Tanja, ...

During the EU-project QUEST atmospheric gaseous sulphuric acid was measured and its influence on particle formation and growth was investigated building on aerosol data at two measurement sites...

Adsorbate mobilities on catalyst nanoparticles studied via the angular distribution of desorbing products (2004)

Johánek,Viktor, Laurin,Mathias, Hoffmann,Jens, Schauermann,Swetlana, Grant,Ann W., Kasemo,Bengt, ...

Employing molecular beam methods, we have studied the angular distribution of products desorbing from oxide-supported Pd nanoparticles during catalytic oxidation of CO. A large range of particle...

Surface reactivity of Pd nanoparticles supported on polycrystalline substrates as compared to thin film model catalysts: infrared study of CH3OH adsorption (2004)

Bertarione,Serena, Scarano,Domenica, Zecchina,Adriano, Johánek,Viktor, Hoffmann,Jens, Schauermann,Swetlana, ...

A detailed comparative study of CH3OH adsorption on two categories of supported Palladium nanoparticles is reported: (1) MgO and gamma-Al2O3-supported Pd metal catalysts prepared by impregnation...

Surface reactivity of Pd nanoparticles supported on polycrystalline substrates as compared to thin film model catalysts: Infrared study of CO adsorption (2004)

Bertarione,Serena, Scarano,Domenica, Zecchina,Adriano, Johánek,Viktor, Hoffmann,Jens, Schauermann,Swetlana, ...

To identify the nature and the local structure of the surface of supported catalyst nanoparticles, we have performed a detailed comparative study of CO adsorption on two categories of oxide-supported...

Surface reactivity of Pd nanoparticles supported on polycrystalline substrates as compared to thin film model catalysts: infrared study of CH3OH adsorption (2004)

Bertarione, Serena, Scarano, Domenica, Zecchina, Adriano, Johánek, Viktor, Hoffmann, Jens, Schauermann, Swetlana, ...

A detailed comparative study of CH3OH adsorption on two categories of supported Palladium nanoparticles is reported: (1) MgO and gamma-Al2O3-supported Pd metal catalysts prepared by impregnation...

Atmosphärische Aerosolbildung: Messungen des Aerosolvorläufergases Schwefelsäure und neu gebildeter Aerosolteilchen (2004)

Hoffmann, Jens

As part of the present work measurements of the atmospheric trace gas sulfuric acid and the size distribution of aerosols have been performed at the Max-Planck-Institut of nuclear physics in...

Adsorbate mobilities on catalyst nanoparticles studied via the angular distribution of desorbing products (2004)

Johánek, Viktor, Laurin, Mathias, Hoffmann, Jens, Schauermann, Swetlana, Grant, Ann W., Kasemo, Bengt, ...

Employing molecular beam methods, we have studied the angular distribution of products desorbing from oxide-supported Pd nanoparticles during catalytic oxidation of CO. A large range of particle...

Surface reactivity of Pd nanoparticles supported on polycrystalline substrates as compared to thin film model catalysts: Infrared study of CO adsorption (2004)

Bertarione, Serena, Scarano, Domenica, Zecchina, Adriano, Johánek, Viktor, Hoffmann, Jens, Schauermann, Swetlana, ...

To identify the nature and the local structure of the surface of supported catalyst nanoparticles, we have performed a detailed comparative study of CO adsorption on two categories of oxide-supported...

Characterization of New Estrogen Receptor Destabilizing Compounds: Effects on Estrogen-Sensitive and Tamoxifen-Resistant Breast Cancer (2004)

Hoffmann, Jens, Bohlmann, Rolf, Heinrich, Nikolaus, Hofmeister, Helmut, Kroll, Jörg, Künzer, Hermann, ...

Background: Antiestrogens of the selective estrogen receptor modulator (SERM) type, such as tamoxifen, have two major limitations: their mixed agonist and antagonist profile and the development of...

Methanol-Oxidation an getragenen Pd-Modellkatalysatoren / (2003)

Hoffmann, Jens.

Berlin, Freie Universiẗat, Diss., 2003 (Nicht für den Austausch).

Interaction of oxygen with palladium deposited on a thin alumina film (2002)

Shaikhutdinov,Shamil, Heemeier,Michael, Hoffmann,Jens, Meusel,Ingo, Richter,B., Bäumer,Marcus, ...

The interaction of oxygen with Pd particles. vapor deposited onto a thin alumina film grown on a NiAl(110) substrate. was studied by STM. AES, LEED, XPS. TPD and molecular beam techniques. The...

Nanofacet-resolved CO oxidation kinetics on alumina- supported Pd particles (2002)

Hoffmann,Jens, Schauermann,Swetlana, Hartmann,Jens, Zhdanov,Vladimir P., Kasemo,Bengt, Libuda,Jörg, ...

Employing a multi-molecular-beam approach, we have measured the angular distribution of CO, molecules formed during CO oxidation under steady-state conditions on well oriented and shaped nm-sized Pd...

Nanofacet-resolved CO oxidation kinetics on alumina- supported Pd particles (2002)

Hoffmann, Jens, Schauermann, Swetlana, Hartmann, Jens, Zhdanov, Vladimir P., Kasemo, Bengt, Libuda, Jörg, ...

Employing a multi-molecular-beam approach, we have measured the angular distribution of CO, molecules formed during CO oxidation under steady-state conditions on well oriented and shaped nm-sized Pd...

Interaction of oxygen with palladium deposited on a thin alumina film (2002)

Shaikhutdinov, Shamil, Heemeier, Michael, Hoffmann, Jens, Meusel, Ingo, Richter, B., Bäumer, Marcus, ...

The interaction of oxygen with Pd particles. vapor deposited onto a thin alumina film grown on a NiAl(110) substrate. was studied by STM. AES, LEED, XPS. TPD and molecular beam techniques. The...

From differentiation to proliferation: The secretory amyloid precursor protein as a local mediator of growth in thyroid epithelial cells

Pietrzik, Claus Ulrich, Hoffmann, Jens, Stöber, Kai, Chen, Chun-Yan, Bauer, Christoph, Otero, Deborah A. C., ...

In various species, thyrotropin (TSH) is known to stimulate both differentiation and proliferation of thyroid follicle cells. This cell type has also been shown to express members of the Alzheimer...

From differentiation to proliferation: The secretory amyloid precursor protein as a local mediator of growth in thyroid epithelial cells

Pietrzik, Claus Ulrich, Hoffmann, Jens, Stöber, Kai, Chen, Chun-Yan, Bauer, Christoph, Otero, Deborah A. C., ...

In various species, thyrotropin (TSH) is known to stimulate both differentiation and proliferation of thyroid follicle cells. This cell type has also been shown to express members of the Alzheimer...