C. Helmchen : rechercher sur Z-Library

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Campagne de collecte 15 septembre 2024 – 1 octobre 2024

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Livres
Articles (500+)
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User Communities and Social Software in the Video Game Industry

Thierry Burger-Helmchen, Patrick Cohendet

Journal:

Long Range Planning

Année:

2011

Langue:

english

Fichier:

PDF, 308 KB

english, 2011

Innovative public-private partnership to support Smart City: the case of “Chaire REVES”

Attour and Thierry Burger-Helmchen, Amel, Dupont, Laurent, Morel, Laure, Guidat, Claudine

Journal:

Journal of Strategy and Management

Année:

2015

Langue:

english

Fichier:

PDF, 383 KB

english, 2015

Deep tissue two-photon microscopy

Helmchen, Fritjof, Denk, Winfried

Journal:

Nature Methods

Année:

2005

Langue:

english

Fichier:

PDF, 578 KB

english, 2005

Option chain and change management: A structural equation application

Thierry Burger-Helmchen

Journal:

European Management Journal

Année:

2009

Langue:

english

Fichier:

PDF, 207 KB

english, 2009

The Meaning of Sherlock Holmes

Danek, A., Helmchen, C., Botzel, K.

Journal:

Archives of Neurology

Année:

1992

Langue:

english

Fichier:

PDF, 172 KB

english, 1992

Resource-based co-innovation through platform ecosystem: experiences of mobile payment innovation in China

Attour and Thierry Burger-Helmchen, Amel, Zhong, Junying, Nieminen, Marko

Journal:

Journal of Strategy and Management

Année:

2015

Langue:

english

Fichier:

PDF, 248 KB

english, 2015

Basic Principles of the CIP-System and Proposals for a Revision

Prof. Dr. Vladlmir Prelog, Prof. Dr. Günter Helmchen

Journal:

Angewandte Chemie International Edition

Année:

1982

Langue:

english

Fichier:

PDF, 1.36 MB

english, 1982

Total syntheses of sandalwood fragrances: (Z)- and (E)-β-santalol and their enantiomers, ent-β-santalene

Achim Krotz, Günter Helmchen

Journal:

Tetrahedron: Asymmetry

Année:

1990

Langue:

english

Fichier:

PDF, 222 KB

english, 1990

Diagnostic Criteria for Central versus Peripheral Positioning Nystagmus and Vertigo: a Review

U. Büttner, Ch. Helmchen, Th. Brand,

Journal:

Acta Oto-Laryngologica

Année:

1999

Langue:

english

Fichier:

PDF, 112 KB

english, 1999

Knowledge management in OSS communities: Relationship between dense and sparse network structures

Behfar, Stefan Kambiz, Turkina, Ekaterina, Burger-Helmchen, Thierry

Journal:

International Journal of Information Management

Année:

2018

Langue:

english

Fichier:

PDF, 774 KB

english, 2018

High Stereoselectivity in Lewis-Acid-Catalyzed and Uncatalyzed Diels–Alder Reactions of the Fumarate of (S)-Ethyl Lactate

Dipl.-Chem. Horst Hartmann, Abdel Fattah Abdel Hady, Karina Sartor, Dr. John Weetman, Prof. Dr. Günter Helmchen

Journal:

Angewandte Chemie International Edition

Année:

1987

Langue:

english

Fichier:

PDF, 334 KB

english, 1987

From rio to johannesburg — a business perspective the 7th international business forum

Matthias Buck, Constanze J. Helmchen, Konrad von Moltke

Journal:

The International Journal of Life Cycle Assessment

Année:

2002

Langue:

english

Fichier:

PDF, 1.00 MB

english, 2002

Bank Lending Networks, Experience, Reputation, and Borrowing Costs: Empirical Evidence from the French Syndicated Lending Market

Christophe J. Godlewski, Bulat Sanditov, Thierry Burger-Helmchen

Journal:

Journal of Business Finance & Accounting

Année:

2012

Langue:

english

Fichier:

PDF, 722 KB

english, 2012

Tetracyclines. 10. Chemical-structural properties of tetracycline derivatives. 5. A total synthesis and structural aspects of racemic 8-oxygenated tetracyclines

Glatz, B., Helmchen, G., Muxfeldt, H., Porcher, H., Prewo, R., Senn, J., Stezowski, J. J., Stojda, R. J., White, D. R.

Journal:

Journal of the American Chemical Society

Année:

1979

Langue:

english

Fichier:

PDF, 1.69 MB

english, 1979

Smart city or smart citizens? The Barcelona case

Attour and Thierry Burger-Helmchen, Amel, Capdevila, Ignasi, Zarlenga, Matías I.

Journal:

Journal of Strategy and Management

Année:

2015

Langue:

english

Fichier:

PDF, 222 KB

english, 2015

Entrepreneurship - Gender, Geographies and Social Context || Gender and Entrepreneurship in Uganda: Women Manoeuvring Economic Space

Burger-Helmchen, Thierry

Année:

2012

Langue:

english

Fichier:

PDF, 261 KB

english, 2012

Entrepreneurship - Creativity and Innovative Business Models || Incubation of New Ideas: Extending Incubation Models to Less-Favored Regions

Burger-Helmchen, Thierry

Année:

2012

Langue:

english

Fichier:

PDF, 732 KB

english, 2012

Entrepreneurship - Creativity and Innovative Business Models || Creative Business Model Innovation for Globalizing SMEs

Burger-Helmchen, Thierry

Année:

2012

Langue:

english

Fichier:

PDF, 401 KB

english, 2012

Iridium-Catalysed Allylic Substitution: Stereochemical Aspects and Isolation of IrIII Complexes Related to the Catalytic Cycle

Björn Bartels, Cristina García-Yebra, Frank Rominger, Günter Helmchen

Journal:

European Journal of Inorganic Chemistry

Année:

2002

Langue:

english

Fichier:

PDF, 322 KB

english, 2002

Herstellung enantiomerenreiner chiraler Alkohole durch asymmetrische Alkylierung von Glykolaten

Prof. Dr. Günter Helmchen, Reiner Wierzchowski

Journal:

Angewandte Chemie

Année:

1984

Langue:

german

Fichier:

PDF, 228 KB

german, 1984

Functional Groups at Concave Sites: Asymmetric Diels-Alder Synthesis with Almost Complete (Lewis-Acid Catalyzed) or High (Uncatalyzed) Stereoselectivity

Priv.-Doz. Dr. Günter Helmchen, Dr. Roland Schmierer

Journal:

Angewandte Chemie International Edition

Année:

1981

Langue:

english

Fichier:

PDF, 358 KB

english, 1981

Concerning the Mechanism of the Asymmetric Diels-Alder Reaction: First Crystal Structure Analysis of a Lewis Acid Complex of a Chiral Dienophile

Dipl.-Chem. Thomas Poll, Dipl.-Chem. Joachim O. Metter, Prof. Dr. Günter Helmchen

Journal:

Angewandte Chemie International Edition

Année:

1985

Langue:

english

Fichier:

PDF, 348 KB

english, 1985

Salt-Free Iridium-Catalyzed Asymmetric Allylic Aminations with N,N-Diacylamines and ortho-Nosylamide as Ammonia Equivalents

Robert Weihofen, Olena Tverskoy, Günter Helmchen

Journal:

Angewandte Chemie International Edition

Année:

2006

Langue:

english

Fichier:

PDF, 112 KB

english, 2006

Ir-Catalyzed Asymmetric Allylic Substitutions with (Phosphoramidite)Ir Complexes—Resting States, Synthesis, and Characterization of Catalytically Active (π-Allyl)Ir Complexes

Stephanie Spiess, Jevgenij A. Raskatov, Christian Gnamm, Kerstin Brödner, Günter Helmchen

Journal:

Chemistry - A European Journal

Année:

2009

Langue:

english

Fichier:

PDF, 284 KB

english, 2009

Ir-Catalysed Asymmetric Allylic Substitutions with Cyclometalated (Phosphoramidite)Ir Complexes—Resting States, Catalytically Active (π-Allyl)Ir Complexes and Computational Exploration

Jevgenij A. Raskatov, Stephanie Spiess, Christian Gnamm, Kerstin Brödner, Frank Rominger, Günter Helmchen

Journal:

Chemistry - A European Journal

Année:

2010

Langue:

english

Fichier:

PDF, 651 KB

english, 2010

Enantioselective Syntheses of 2,5-Disubstituted Pyrrolidines Based on Iridium-Catalyzed Allylic Aminations—Total Syntheses of Alkaloids from Amphibian Skins

Martin Gärtner, Dr. Robert Weihofen, Prof. Dr. Günter Helmchen

Journal:

Chemistry - A European Journal

Année:

2011

Langue:

english

Fichier:

PDF, 512 KB

english, 2011

Syntheses of Enantiomerically Pure Cyclopent-2-ene-1-carboxylic Acid and (Cyclopent-2-enyl)acetic Acid by Enantioselective Palladium-Catalyzed Allylic Alkylations — Synthesis of Enantiomerically Pure (-)-Chaulmoogric Acid.

Matthias Seemann, Markus Schoeller, Steffen Kudis, Guenter Helmchen

Journal:

ChemInform

Année:

2003

Fichier:

PDF, 112 KB

2003

Scanning fiber endoscopy with highly flexible, 1 mm catheterscopes for wide-field, full-color imaging

Cameron M. Lee, Christoph J. Engelbrecht, Timothy D. Soper, Fritjof Helmchen, Eric J. Seibel

Journal:

Journal of Biophotonics

Année:

2010

Langue:

english

Fichier:

PDF, 2.14 MB

english, 2010

Long-term eye movement recordings with a scleral search coil-eyelid protection device allows new applications

Andreas Sprenger, Birte Neppert, Sabine Köster, Steffen Gais, Detlef Kömpf, Christoph Helmchen, Hubert Kimmig

Journal:

Journal of Neuroscience Methods

Année:

2008

Langue:

english

Fichier:

PDF, 348 KB

english, 2008

Proteinurie bei Mukoviszidose

E. Kuwertz-Bröking, H. G. Koch, A. Schulze-Everding, U. Helmchen, Monika Bulla

Journal:

Monatsschrift Kinderheilkunde

Année:

1998

Langue:

german

Fichier:

PDF, 332 KB

german, 1998

Unterschwellige psychische Störungen

H. Helmchen

Journal:

Der Nervenarzt

Année:

2001

Langue:

german

Fichier:

PDF, 152 KB

german, 2001

Small Vertical Saccades Have Normal Speeds in Progressive Supranuclear Palsy (PSP)

L. AVERBUCH-HELLER, C. GORDON, A. ZIVOTOFSKY, C. HELMCHEN, H. RAMBOLD, U. BÜTTNER, J. BÜTTNER-ENNEVER, R. J. LEIGH

Journal:

Annals of the New York Academy of Sciences

Année:

2002

Langue:

english

Fichier:

PDF, 1.50 MB

english, 2002

The role of prediction and anticipation on age-related effects on smooth pursuit eye movements

Andreas Sprenger, Peter Trillenberg, Jonas Pohlmann, Kirsten Herold, Rebekka Lencer, Christoph Helmchen

Journal:

Annals of the New York Academy of Sciences

Année:

2011

Langue:

english

Fichier:

PDF, 324 KB

english, 2011

High-speed in vivo calcium imaging reveals neuronal network activity with near-millisecond precision

Grewe, Benjamin F, Langer, Dominik, Kasper, Hansjörg, Kampa, Björn M, Helmchen, Fritjof

Journal:

Nature Methods

Année:

2010

Langue:

english

Fichier:

PDF, 1.87 MB

english, 2010

Ca2+ imaging in the mammalian brain in vivo

Fritjof Helmchen, Jack Waters

Journal:

European Journal of Pharmacology

Année:

2002

Langue:

english

Fichier:

PDF, 453 KB

english, 2002

Predictive value of initial histology and effect of plasmapheresis on long-term prognosis of rapidly progressive glomerulonephritis

Ingeborg Zäuner, Dieter Bach, Norbert Braun, Bernhard K. Krämer, Reinhard Fünfstück, Udo Helmchen, Peter Schollmeyer, Joachim Böhler

Journal:

American Journal of Kidney Diseases

Année:

2002

Langue:

english

Fichier:

PDF, 59 KB

english, 2002

Iridium-Catalyzed Allylic Substitutions with Cyclometalated Phosphoramidite Complexes Bearing a Dibenzocyclooctatetraene Ligand: Preparation of (π-Allyl)Ir Complexes and Computational and NMR Spectroscopic Studies

Dr. Jevgenij A. Raskatov, Mascha Jäkel, Prof. Dr. Bernd F. Straub, Dr. Frank Rominger, Prof. Dr. Günter Helmchen

Journal:

Chemistry - A European Journal

Année:

2012

Langue:

english

Fichier:

PDF, 1.38 MB

english, 2012

The contribution of audio-visual techniques to advances in psychopathology

H. Helmchen, E. Renfordt

Journal:

Comprehensive Psychiatry

Année:

1981

Langue:

english

Fichier:

PDF, 875 KB

english, 1981

Cerebellar neural responses related to actively and passively applied noxious thermal stimulation in human subjects: a parametric fMRI study

C. Helmchen, C. Mohr, C. Erdmann, F. Binkofski

Journal:

Neuroscience Letters

Année:

2004

Langue:

english

Fichier:

PDF, 196 KB

english, 2004

The anterior cingulate cortex contains distinct areas dissociating external from self-administered painful stimulation: a parametric fMRI study

C. Mohr, F. Binkofski, C. Erdmann, C. Büchel, C. Helmchen

Journal:

PAIN®

Année:

2005

Langue:

english

Fichier:

PDF, 408 KB

english, 2005

Central representation of cold-evoked pain relief in capsaicin induced pain: An event-related fMRI study

C. Mohr, S. Leyendecker, I. Mangels, B. Machner, T. Sander, C. Helmchen

Journal:

PAIN®

Année:

2008

Langue:

english

Fichier:

PDF, 961 KB

english, 2008

Barrel cortex function

Feldmeyer, Dirk, Brecht, Michael, Helmchen, Fritjof, Petersen, Carl C.H., Poulet, James F.A., Staiger, Jochen F., Luhmann, Heiko J., Schwarz, Cornelius

Journal:

Progress in Neurobiology

Année:

2013

Langue:

english

Fichier:

PDF, 2.61 MB

english, 2013

PhosphinooxazolinesA New Class of Versatile, Modular P,N - Ligands for Asymmetric Catalysis

Helmchen, Günter, Pfaltz, Andreas

Journal:

Accounts of Chemical Research

Année:

2000

Langue:

english

Fichier:

PDF, 238 KB

english, 2000

General presentation. Rethinking boundaries for innovation: exploring the shapes and stakes of the open innovation phenomenon

Burger-Helmchen, Thierry, Hussler, Caroline, Pénin, Julien

Journal:

Journal of Innovation Economics

Année:

2011

Langue:

english

Fichier:

PDF, 142 KB

english, 2011

Predictive mechanisms improve the vestibulo-ocular reflex in patients with bilateral vestibular failure

Sprenger, Andreas, Wojak, Jann Frederik, Jandl, Nico Maximilian, Hertel, Susanne, Helmchen, Christoph

Journal:

Journal of Neurology

Année:

2014

Langue:

english

Fichier:

PDF, 278 KB

english, 2014

Current state of diagnostic management of acute vertigo: a survey of neurologists in Germany

Christoph Helmchen,Björn Machner,Nadine Lehnen,Klaus Jahn…

Journal:

Journal of Neurology

Année:

2014

Langue:

english

Fichier:

PDF, 231 KB

english, 2014

La création de rentes : une approche par les compétences et capacités dynamiques

Burger-Helmchen, Thierry, Frank, Laurence

Journal:

Innovations

Année:

2011

Langue:

french

Fichier:

PDF, 280 KB

french, 2011

Changes in the distribution of body mass index of white US men, 1890–2000

Helmchen, L. A., Henderson, R. M.

Journal:

Annals of Human Biology

Année:

2004

Langue:

english

Fichier:

PDF, 145 KB

english, 2004

The Berlin Aging Study (BASE): Overview and Design

Baltes, Paul B., Mayer, Karl Ulrich, Helmchen, Hanfried, Steinhagen-Thiessen, Elisabeth

Journal:

Ageing and Society

Année:

1993

Langue:

english

Fichier:

PDF, 1.82 MB

english, 1993

Randomized Controlled Trial on Hemifield Eye Patching and Optokinetic Stimulation in Acute Spatial Neglect

Machner, B., Konemund, I., Sprenger, A., von der Gablentz, J., Helmchen, C.

Journal:

Stroke

Année:

2014

Langue:

english

Fichier:

PDF, 435 KB

english, 2014