27 Result(s)

Article

GATA1s induces hyperproliferation of eosinophil precursors in Down syndrome transient leukemia

Transient leukemia (TL) is evident in 5–10% of all neonates with Down syndrome (DS) and associated with N-terminal truncating GATA1 mutations (GATA1s). Here we report that TL-cell clones generate abundant eosinop...

A Maroz, L Stachorski, S Emmrich, K Reinhardt, J Xu, Z Shao, S Käbler… in Leukemia (2014)

Article

Neonatal murine macrophages show enhanced chemotactic capacity upon toll-like receptor stimulation

The neonatal surgical patient is threatened by exuberant inflammatory reactions. Neonatal macrophages are key players in this process. We investigated the ability of neonatal macrophages to initiate a local in...

T. Winterberg, G. Vieten, L. Feldmann, Y. Yu, G. Hansen… in Pediatric Surgery International (2014)

Article

O₂ density and temperature profiles retrieving from direct solar Lyman-alpha radiation measurements

The resonance transition ²P-²S of the atomic hydrogen (Lyman-alpha emission) is the strongest and most conspicuous feature in the solar EUV spectrum. The Lyman-alpha radiation transfer depends on the resonance sc...

V. Guineva, G. Witt, J. Gumbel, M. Khaplanov, R. Werner… in Geomagnetism and Aeronomy (2009)

Article

Neutron experiments with cryogenic methane hydrate and mesitylene moderators

In this article we describe the experimental results of a methane hydrate moderator as well as as mesitylene moderator operated at a temperature around 20K at the JESSICA (Jülich Experimental Spallation Target...

K. Nünighoff, Ch. Pohl, S. Koulikov, F. Cantargi… in The European Physical Journal A (2008)

Article

In vitro activity of fluoroquinolones against clinical isolates of Nocardia identified by partial 16S rRNA sequencing

Fluoroquinolones have several properties that make them potentially attractive candidates for the treatment of Nocardia infections, but information regarding their in vitro activity is limited. Minimum inhibit...

G. Hansen, S. Swanzy, R. Gupta, B. Cookson… in European Journal of Clinical Microbiology … (2008)

Chapter

Total Ozone Observations During the Past 80 Years

Ozone plays a key role in the physics and chemistry of the atmosphere. Total ozone, that is, the amount of ozone in an air column, is therefore a variable of vital climatic and environmental importance. The op...

S. Brönnimann, C. Vogler, J. Staehelin… in Climate Variability and Extremes during th… (2008)

Article

Ice moderator experiments at very low temperatures

In this article measured time-of-flight spectra and energy spectra of a water moderator operated at various temperatures between 20K and room temperature are described. These data are used to validate generate...

K. Nünighoff, Ch. Pohl, V. Bollini, A. Bubak… in The European Physical Journal A - Hadrons … (2004)

Article

Extreme climate of the global troposphere and stratosphere in 1940–42 related to El Niño

Although the El Niño/Southern Oscillation phenomenon is the most prominent mode of climate variability¹ and affects weather and climate in large parts of the world, its effects on Europe and the high-latitude str...

S. Brönnimann, J. Luterbacher, J. Staehelin, T. M. Svendby, G. Hansen, T. Svenøe in Nature (2004)

Article

Development of a novel Agrobacterium-mediated transformation method to recover transgenic Brassica napus plants

We report here an in planta method to produce transgenic Brassica napus plants. The procedure included Agrobacterium-mediated inoculation of plants at various development stages along with a vacuum infiltration s...

W. C. Wang, G. Menon, G. Hansen in Plant Cell Reports (2003)

Article

Effect of Recombinant Human DNase on α₁-Proteinase Inhibitor Function: An Experimental Approach to the Combined Clinical Use of rhDNase and α₁-PI in CF Patients

G. Hansen, S. Hoffjan, K. Mosler, A. Schuster in Lung (2001)

Article

The use of phosphomannose-isomerase as a selectable marker to recover transgenic maize plants (Zea mays L.) via Agrobacterium transformation

A new selectable marker system has been adapted for use in Agrobacterium-mediated transformation of maize. This selection system utilizes the pmi gene encoding for phosphomannose-isomerase that converts mannose-...

D. Negrotto, M. Jolley, S. Beer, A. R. Wenck, G. Hansen in Plant Cell Reports (2000)

Article

Multiple sclerosis in North Norway, and first appearance in an indigenous population

This study was performed to determine the prevalence of multiple sclerosis (MS) in 1993 and annual incidence rates 1983–1992, and to examine whether the disease occurs among the Sami people. According to earl...

S. A. Grønlie, E. Myrvoll, G. Hansen, M. Grønning, S. I. Mellgren in Journal of Neurology (2000)

Chapter

Lessons in Gene Transfer to Plants by a Gifted Microbe

The discovery that the bacterial phytopathogen Agrobacterium is a natural expert at interkingdom gene transfer has proven to be rewarding in areas far afield from plant pathology. It has provided researchers with...

G. Hansen, M. D. Chilton in Plant Biotechnology (2000)

Article

Validation of GOME total ozone by means of the Norwegian ozone monitoring network

The Global Ozone Monitoring Experiment (GOME) onboard the ERS-2 satellite has been in operation since July 1995. The Norwegian ground-based total ozone network has played an important role both in the main val...

G. Hansen, A. Dahlback, F. Tønnessen, T. Svenøe in Annales Geophysicae (1999)

Article

Wound-inducible and organ-specific expression of ORF13 from Agrobacterium rhizogenes 8196 T-DNA in transgenic tobacco plants

Tissue-specific expression of the ORF13 promoter from Agrobacterium rhizogenes 8196 was assessed throughout the development of transgenic tobacco plants using a GUS reporter gene. ORF13 exhibited high activity i...

G. Hansen, D. Vaubert, D. Clérot, J. Brevet in Molecular and General Genetics MGG (1997)

Article

Some Consequences of Thermosolutal Convection: The Grain Structure of Castings

The essential principles of thermosolutal convection are outlined, and how convection provides a transport mechanism between the mushy region of a casting and the open bulk liquid is illustrated. The convectiv...

G. Hansen, A. Hellawell, S. Z. Lu… in Metallurgical and Materials Transactions A (1996)

Chapter

The Rhizogenes tale: modification of plant growth and physiology by an enzymatic system of hydrolysis of phytohormone conjugates

More than 60 years ago, Agrobacterium rhizogenes, at that time called Phytomonas rhizogenes, was identified as the aethiological agent of the plant disease called hairy-root or woolly knot (Riker, 1930). Since th...

A. Spena, J. J. Estruch, G. Hansen… in Advances in Molecular Genetics of Plant-Mi… (1993)