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Articles (186)
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“Spontaneous” Ambient Temperature Dehydrocoupling of Aromatic Amine–Boranes

Dr. Holger Helten, Alasdair P. M. Robertson, Prof. Dr. Anne Staubitz, James R. Vance, Dr. Mairi F. Haddow, Prof. Dr. Ian Manners

Journal:

Chemistry - A European Journal

Année:

2012

Langue:

english

Fichier:

PDF, 555 KB

english, 2012

The ORF, Regulated Synthesis, and Persistence-Specific Variation of Influenza C Viral NS1 Protein

Manfred Marschall, Anke Helten, Anne Hechtfischer, Anke Zach, Christine Banaschewski, Wolfgang Hell, Herbert Meier-Ewert

Journal:

Virology

Année:

1999

Langue:

english

Fichier:

PDF, 311 KB

english, 1999

Klassifizierungsprobleme bei der Neuordnung der Regionalstruktur des Kraftfahrzeug-Haftpflichtversicherungstarifs

Elmar Helten

Journal:

Blätter der DGVFM

Année:

1978

Langue:

german

Fichier:

PDF, 800 KB

german, 1978

Die Aufgaben des Mathematikers bei der Lösung ökonomischer Probleme der Versicherungsunternehmung

Elmar Helten

Journal:

Blätter der DGVFM

Année:

1976

Langue:

german

Fichier:

PDF, 957 KB

german, 1976

The use of EDTA-permeabilized E. coli cells as indicators of aflatoxin B1-induced differential lethality in the DNA repair host-mediated assay

Marco J. Zeilmaker, Corrie M.M. van Teylingen, JoséB.M. van Helten, Georges R. Mohn

Journal:

Mutation Research Letters

Année:

1991

Langue:

english

Fichier:

PDF, 449 KB

english, 1991

Nucleotide-specific PCR for molecular virus typing

Manfred Marschall, Anke Schuler, Christoph Böswald, Anke Helten, Anne Hechtfischer, Matthias Lapatschek, Herbert Meier-Ewert

Journal:

Journal of Virological Methods

Année:

1995

Langue:

english

Fichier:

PDF, 400 KB

english, 1995

Calcium-dependent conformational changes in guanylate cyclase-activating protein 2 monitored by cysteine accessibility

Andreas Helten, Karl-Wilhelm Koch

Journal:

Biochemical and Biophysical Research Communications

Année:

2007

Langue:

english

Fichier:

PDF, 322 KB

english, 2007

On the Regioselectivity of the Cyclization of Enyne−Ketenes: A Computational Investigation and Comparison with the Myers-Saito and Schmittel Reaction

Musch, Patrick W., Remenyi, Christian, Helten, Holger, Engels, Bernd

Journal:

Journal of the American Chemical Society

Année:

2002

Langue:

english

Fichier:

PDF, 94 KB

english, 2002

Detection of atmospheric free radicals by matrix isolation and ESR spectroscopy

M. Helten, W. Pätz, D. Mihecic, M. Trainer, D. Knapeka, D.H. Ehhalt

Journal:

Bulletin des Sociétés Chimiques Belges

Année:

1983

Langue:

english

Fichier:

PDF, 178 KB

english, 1983

Ice-supersaturated regions and subvisible cirrus in the northern midlatitude upper troposphere

Gierens, Klaus, Schumann, Ulrich, Helten, Manfred, Smit, Herman, Wang, Pi-Huan

Journal:

Journal of Geophysical Research

Année:

2000

Langue:

english

Fichier:

PDF, 1.52 MB

english, 2000

Paramagnetic Titanium(III) and Zirconium(III) Metallocene Complexes as Precatalysts for the Dehydrocoupling/Dehydrogenation of Amine-Boranes

Helten, Holger, Dutta, Barnali, Vance, James R., Sloan, Matthew E., Haddow, Mairi F., Sproules, Stephen, Collison, David, Whittell, George R., Lloyd-Jones, Guy C., Manners, Ian

Journal:

Angewandte Chemie

Année:

2013

Langue:

english

Fichier:

PDF, 573 KB

english, 2013

Paramagnetic Titanium(III) and Zirconium(III) Metallocene Complexes as Precatalysts for the Dehydrocoupling/Dehydrogenation of Amine-Boranes

Helten, Holger, Dutta, Barnali, Vance, James R., Sloan, Matthew E., Haddow, Mairi F., Sproules, Stephen, Collison, David, Whittell, George R., Lloyd-Jones, Guy C., Manners, Ian

Journal:

Angewandte Chemie International Edition

Année:

2013

Langue:

english

Fichier:

PDF, 595 KB

english, 2013

In-flight comparison of MOZAIC and POLINAT water vapor measurements

Helten, M., Smit, H. G. J., Kley, D., Ovarlez, J., Schlager, H., Baumann, R., Schumann, U., Nedelec, P., Marenco, A.

Journal:

Journal of Geophysical Research

Année:

1999

Langue:

english

Fichier:

PDF, 1.03 MB

english, 1999

Depletion of Arctic ozone in the winter 1990

Koike, M., Kondo, Y., Hayashi, M., Iwasaka, Y., Newman, P. A., Helten, M., Aimedieu, P.

Journal:

Geophysical Research Letters

Année:

1991

Langue:

english

Fichier:

PDF, 401 KB

english, 1991

Calibration and performance of automatic compact instrumentation for the measurement of relative humidity from passenger aircraft

Helten, M., Smit, H. G. J., Sträter, W., Kley, D., Nedelec, P., Zöger, M., Busen, R.

Journal:

Journal of Geophysical Research

Année:

1998

Langue:

english

Fichier:

PDF, 1.02 MB

english, 1998

Model Calculations about the Influence of Protic Environments on the Alkylation Step of Epoxide, Aziridine, and Thiirane Based Cysteine Protease Inhibitors

Helten, Holger, Schirmeister, Tanja, Engels, Bernd

Journal:

Journal of Physical Chemistry A

Année:

2004

Langue:

english

Fichier:

PDF, 242 KB

english, 2004

Mechanisms of the Thermal and Catalytic Redistributions, Oligomerizations, and Polymerizations of Linear Diborazanes

Robertson, Alasdair P. M., Leitao, Erin M., Jurca, Titel, Haddow, Mairi F., Helten, Holger, Lloyd-Jones, Guy C., Manners, Ian

Journal:

Journal of the American Chemical Society

Année:

2013

Langue:

english

Fichier:

PDF, 1.93 MB

english, 2013

A Cooperative Role for the Counteranion in the PCl 5 -Initiated Living, Cationic Chain Growth Polycondensation of the Phosphoranimine Cl 3 P═NSiMe 3

Blackstone, Vivienne, Pfirrmann, Stefan, Helten, Holger, Staubitz, Anne, Presa Soto, Alejandro, Whittell, George R., Manners, Ian

Journal:

Journal of the American Chemical Society

Année:

2012

Langue:

english

Fichier:

PDF, 327 KB

english, 2012

First Brønsted Acid-Induced Ring Expansion of an Oxaphosphirane Complex: A Combined Experimental and DFT Study

Helten, Holger, Pérez, Janaina Marinas, Daniels, Jörg, Streubel, Rainer

Journal:

Organometallics

Année:

2009

Langue:

english

Fichier:

PDF, 250 KB

english, 2009

Mechanism of Metal-Free Hydrogen Transfer between Amine–Boranes and Aminoboranes

Leitao, Erin M., Stubbs, Naomi E., Robertson, Alasdair P. M., Helten, Holger, Cox, Robert J., Lloyd-Jones, Guy C., Manners, Ian

Journal:

Journal of the American Chemical Society

Année:

2012

Langue:

english

Fichier:

PDF, 1.55 MB

english, 2012

Optical absorption spectra of ferromagnetic Eu1+xO single crystals at the insulator-metal transition

Helten, M., Grunberg, P., Zinn, W.

Journal:

Journal of Magnetism and Magnetic Materials

Année:

1977

Langue:

english

Fichier:

PDF, 261 KB

english, 1977

Public Health

Helten, M., Grunberg, P., Zinn, W.

Journal:

The Lancet

Année:

1946

Langue:

english

Fichier:

PDF, 206 KB

english, 1946

The Noonday Sun. Edwardians in the Tropicsby Valerie Pakenham;The Randlords. The Men Who Made South Africaby Geoffrey Wheatcroft

Review by: Jean Jacques Van Helten

Journal:

African Affairs

Année:

1986

Langue:

english

Fichier:

PDF, 446 KB

english, 1986

The Emergence of Modern South Africa: State, Capital and the Incorporation of Organized Labor on the South African Gold Fields, 1902-1939by David Yudelman

Review by: Jean Jacques Van Helten

Journal:

African Affairs

Année:

1984

Langue:

english

Fichier:

PDF, 396 KB

english, 1984

La France et l'Or des Boërs: Some Aspects of French Investment in South Africa between 1890 and 1914

Jean Jacques Van-Helten

Journal:

African Affairs

Année:

1985

Langue:

english

Fichier:

PDF, 1.82 MB

english, 1985

Review Article: Mining and Imperialism

Review by: Jean Jacques Van -Helten

Journal:

Journal of Southern African Studies

Année:

1980

Langue:

english

Fichier:

PDF, 739 KB

english, 1980

When Sterics Overcome Electronics: An Unusual Haptotropic P→N Pentacarbonyltungsten Shift

Helten, Holger, Schnakenburg, Gregor, Daniels, Jörg, Arduengo, Anthony J., Streubel, Rainer

Journal:

Organometallics

Année:

2011

Langue:

english

Fichier:

PDF, 1.25 MB

english, 2011

Copper and Silver Triimidosulfites: S(N t Bu) 32- -Bicapped M 3 -Triangles Connected via Lithium Halide Ladders or Fragments Thereof

Walfort, Bernhard, Auth, Tanja, Degel, Björn, Helten, Holger, Stalke, Dietmar

Journal:

Organometallics

Année:

2002

Langue:

english

Fichier:

PDF, 144 KB

english, 2002

Novel access to azaphosphiridine complexes and first applications using Brønsted acid-induced ring expansion reactions

Fankel, Stefan, Helten, Holger, von Frantzius, Gerd, Schnakenburg, Gregor, Daniels, Jörg, Chu, Victoria, Müller, Christina, Streubel, Rainer

Journal:

Dalton Transactions

Année:

2010

Langue:

english

Fichier:

PDF, 478 KB

english, 2010

Ring size effects in the C2–C6 biradical cyclisation of enyne–allenes and the relevance for neocarzinostatin

Schmittel, Michael, Steffen, Jens-Peter, Maywald, Michael, Engels, Bernd, Helten, Holger, Musch, Patrick

Journal:

Journal of the Chemical Society Perkin Transactions 2

Année:

2001

Langue:

english

Fichier:

PDF, 222 KB

english, 2001

Integration of accessible secondary metal sites into MOFs for H2S removal

Nickerl, Georg, Leistner, Matthias, Helten, Stella, Bon, Volodymyr, Senkovska, Irena, Kaskel, Stefan

Journal:

Inorganic Chemistry Frontiers

Année:

2014

Langue:

english

Fichier:

PDF, 1.04 MB

english, 2014

Competing ring cleavage of transient O-protonated oxaphosphirane complexes: 1,3-oxaphospholane and η2-Wittig ylide complex formation

Marinas Pérez, Janaina, Albrecht, Carolin, Helten, Holger, Schnakenburg, Gregor, Streubel, Rainer

Journal:

Chemical Communications

Année:

2010

Langue:

english

Fichier:

PDF, 632 KB

english, 2010

Developing click reactions of a 3-ferrocenyl-2H-azaphosphirene complex

Streubel, Rainer, Pérez, Janaina Marinas, Helten, Holger, Daniels, Jörg, Nieger, Martin

Journal:

Dalton Transactions

Année:

2010

Langue:

english

Fichier:

PDF, 340 KB

english, 2010

Extended π conjugation in 2H-1,4,2-diazaphosphole complexes

Helten, Holger, Daniels, Jörg, Nieger, Martin, Streubel, Rainer

Journal:

New Journal of Chemistry

Année:

2010

Langue:

english

Fichier:

PDF, 1.36 MB

english, 2010

Versicherungsökonomie zwischen theoretischem Anspruch und empirischer Relevanz

Elmar Helten

Journal:

Zeitschrift für die gesamte Versicherungswissenschaft

Année:

1990

Langue:

german

Fichier:

PDF, 958 KB

german, 1990

Versicherungstechnische Möglichkeiten zur Bewältigung künftiger Risiken

Elmar Helten

Journal:

Zeitschrift für die gesamte Versicherungswissenschaft

Année:

1992

Langue:

german

Fichier:

PDF, 1.71 MB

german, 1992

Methoden und Grenzen der Prognose im Versicherungsunternehmen

Elmar Helten

Journal:

Zeitschrift für die gesamte Versicherungswissenschaft

Année:

1981

Langue:

german

Fichier:

PDF, 1.06 MB

Leonhard Helten

Journal:

Marburger Jahrbuch für Kunstwissenschaft

Année:

1989

Fichier:

PDF, 3.98 MB

1989

Copolymerisation at work: the first example of a highly porous MOF comprising a triarylborane-based linker

Helten, Stella, Sahoo, Basudev, Bon, Volodymyr, Senkovska, Irena, Kaskel, Stefan, Glorius, Frank

Journal:

CrystEngComm

Année:

2015

Langue:

english

Fichier:

PDF, 1.06 MB

english, 2015

MeV

Oswald, H., Burgmer, W., Gola, D., Heinrich, C., Helten, H. J., Schieck, H. Paetz gen., Koike, Y.

Journal:

Physical Review Letters

Année:

1981

Langue:

english

Fichier:

PDF, 653 KB

english, 1981

[IEEE 2013 IEEE International Conference on Computer Vision (ICCV) - Sydney, Australia (2013.12.1-2013.12.8)] 2013 IEEE International Conference on Computer Vision - Real-Time Body Tracking with One Depth Camera and Inertial Sensors

Helten, Thomas, Muller, Meinard, Seidel, Hans-Peter, Theobalt, Christian

Année:

2013

Langue:

english

Fichier:

PDF, 533 KB

english, 2013

[IEEE 2013 International Conference on 3D Vision (3DV) - Seattle, WA, USA (2013.06.29-2013.07.1)] 2013 International Conference on 3D Vision - Personalization and Evaluation of a Real-Time Depth-Based Full Body Tracker

Helten, Thomas, Baak, Andreas, Bharaj, Gaurav, Muller, Meinard, Seidel, Hans-Peter, Theobalt, Christian

Année:

2013

Langue:

english

Fichier:

PDF, 513 KB

english, 2013

Mining and imperialism

Van‐Helten, Jean Jacques

Journal:

Journal of Southern African Studies

Année:

1980

Langue:

english

Fichier:

PDF, 383 KB

english, 1980

Britain and the Dominions: a guide to business and related records in the United Kingdom concerning Australia, Canada, New Zealand and South Africa. By Charles A. Jones. Boston, Mass.: G. K. Hall, 1978. Pp. xvi + 253. $30.

van-Helten, Jean Jacques

Journal:

The Journal of African History

Année:

1980

Langue:

english

Fichier:

PDF, 355 KB

english, 1980

100

Business and Apartheid Anglo American and the Rise of Modern South Africa. By Duncan Innes. London: Heinemann Educational Books, 1984. Pp. 358. £8.50 paperback. Electricity, Industry and Class in South Africa. By Renefrew Christie. London: Macmillan, 1984. Pp. xiii + 241. £25.00.

Van Helten, Jean-Jacques

Journal:

The Journal of African History

Année:

1986

Langue:

english

Fichier:

PDF, 439 KB

english, 1986