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1

COVID-19 and schooling: evaluation, assessment and accountability in times of crisesâreacting quickly to explore key issues for policy, practice and research with the school barometer

Huber, Stephan Gerhard, Helm, Christoph

Journal:

Educational Assessment, Evaluation and Accountability

Year:

2020

File:

PDF, 852 KB

2020

2

Sustainable soil management requires a systemic approach

Vogel, Hans-Jörg, Bartke, Stephan, Daedlow, Katrin, Helming, Katharina, Kögel-Knabner, Ingrid, Lang, Birgit, Rabot, Eva, Russell, David, Stößel, Bastian, Weller, Ulrich, Wiesmeier, Martin, Wollschläge

Journal:

SOIL Discussions

Year:

2017

Language:

english

File:

PDF, 3.60 MB

english, 2017

3

Mass spectrometric determination of partial electron impact ionization cross sections of He, Ne, Ar and Kr from threshold up to 180 eV

Stephan, K., Helm, H., Märk, T. D.

Journal:

The Journal of Chemical Physics

Year:

1980

Language:

english

File:

PDF, 1.32 MB

english, 1980

4

A systemic approach for modeling soil functions

Vogel, Hans-Jörg, Bartke, Stephan, Daedlow, Katrin, Helming, Katharina, Kögel-Knabner, Ingrid, Lang, Birgit, Rabot, Eva, Russell, David, Stößel, Bastian, Weller, Ulrich, Wiesmeier, Martin, Wollschläge

Journal:

Year:

2018

Language:

english

File:

PDF, 2.84 MB

english, 2018

5

[7-(Dialkylamino)coumarin-4-yl]methyl-Caged Compounds as Ultrafast and Effective Long-Wavelength Phototriggers of 8Bromo-Substituted Cyclic Nucleotides

Volker Hagen, Stephan Frings, Burkhard Wiesner, Siegrun Helm, U. Benjamin Kaupp, Jürgen Bendig

Journal:

Year:

2003

Language:

english

File:

PDF, 186 KB

english, 2003

6

Size-controlled formation of Cu nanoclusters in pulsed magnetron sputtering system

Vítězslav Straňák, Stephan Block, Steffen Drache, Zdeněk Hubička, Christiane A. Helm, Lubomír Jastrabík, Milan Tichý, Rainer Hippler

Journal:

Surface and Coatings Technology

Year:

2011

Language:

english

File:

PDF, 1.13 MB

english, 2011

7

Bifocal versus unifocal right atrial pacing under plasma level controlled sotalol to prevent atrial fibrillation in patients with symptomatic sinus bradycardia and paroxysmal atrial fibrillation

Martin Stockburger, Lars Gerhardt, Stephan Helms, Michael Schlegl, Christian Butter

Journal:

Herzschrittmachertherapie und Elektrophysiologie

Year:

2007

File:

PDF, 507 KB

2007

8

[IEEE 2009 10th ACIS International Conference on Software Engineering, Artificial Intelligences, Networking and Parallel/Distributed Computing - Daegu, Korea (2009.05.27-2009.05.29)] 2009 10th ACIS International Conference on Software Engineering, Artificial Intelligences, Networking and Parallel/Distributed Computing - Networking Resources for Research and Scientific Education in BW-eLabs

Jeschke, Sabina, Burr, Barbara, Hahn, Jens U, Helmes, Leni, Kriha, Walter, Kruger, Michael, Liehr, Andreas W, Osten, Wolfgang, Pfeiffer, Olivier, Richter, Thomas, Schneider, Gerhard, Stephan, Werner,

Year:

2009

Language:

english

File:

PDF, 303 KB

english, 2009

9

Carrier dynamics in Landau-quantized graphene featuring strong Auger scattering

Mittendorff, Martin, Wendler, Florian, Malic, Ermin, Knorr, Andreas, Orlita, Milan, Potemski, Marek, Berger, Claire, de Heer, Walter A., Schneider, Harald, Helm, Manfred, Winnerl, Stephan

Journal:

Year:

2014

Language:

english

File:

PDF, 1.27 MB

english, 2014

10

Gouy phase shift of a tightly focused, radially polarized beam

Kaltenecker, Korbinian J., König-Otto, Jacob C., Mittendorff, Martin, Winnerl, Stephan, Schneider, Harald, Helm, Manfred, Helm, Hanspeter, Walther, Markus, Fischer, Bernd M.

Journal:

Year:

2016

Language:

english

File:

PDF, 2.03 MB

english, 2016

11

Intercultural anxiety: implications for improving expatriate selection for Japan

White Stephan, Cookie, Helms, Marilyn M., Haynes, Paula J.

Journal:

Cross Cultural Management An International Journal

Year:

1995

Language:

english

File:

PDF, 725 KB

english, 1995

12

Embodied neurology: an integrative framework for neurological disorders

Freund, Patrick, Friston, Karl, Thompson, Alan J., Stephan, Klaas E., Ashburner, John, Bach, Dominik R., Nagy, Zoltan, Helms, Gunther, Draganski, Bogdan, Mohammadi, Siawoosh, Schwab, Martin E., Curt,

Journal:

Year:

2016

Language:

english

File:

PDF, 601 KB

english, 2016

13

Discrepant post filter ionized calcium concentrations by common blood gas analyzers in CRRT using regional citrate anticoagulation

Schwarzer, Patrik, Kuhn, Sven-Olaf, Stracke, Sylvia, Gründling, Matthias, Knigge, Stephan, Selleng, Sixten, Helm, Maximilian, Friesecke, Sigrun, Abel, Peter, Kallner, Anders, Nauck, Matthias, Petersma

Journal:

Critical Care (BioMed Central)

Year:

2015

Language:

english

File:

PDF, 690 KB

english, 2015

14

Up to 70 THz bandwidth from an implanted Ge photoconductive antenna excited by a femtosecond Er:fibre laser

Singh, Abhishek, Pashkin, Alexej, Winnerl, Stephan, Welsch, Malte, Beckh, Cornelius, Sulzer, Philipp, Leitenstorfer, Alfred, Helm, Manfred, Schneider, Harald

Journal:

Light: Science & Applications

Year:

2020

File:

PDF, 507 KB

2020

15

Langwellig UV/Vis-anregbare, hocheffiziente und ultraschnelle Phototrigger für cAMP und cGMP

Volker Hagen, Jürgen Bendig, Stephan Frings, Torsten Eckardt, Siegrun Helm, Dirk Reuter, U. Benjamin Kaupp

Journal:

Angewandte Chemie

Year:

2001

Language:

german

File:

PDF, 150 KB

german, 2001

16

Highly Efficient and Ultrafast Phototriggers for cAMP and cGMP by Using Long-Wavelength UV/Vis-Activation

Volker Hagen, Jürgen Bendig, Stephan Frings, Torsten Eckardt, Siegrun Helm, Dirk Reuter, U. Benjamin Kaupp

Journal:

Angewandte Chemie International Edition

Year:

2001

Language:

english

File:

PDF, 150 KB

english, 2001

17

Collagen-Targeted MRI Contrast Agent for Molecular Imaging of Fibrosis

Peter Caravan, Biplab Das, Stéphane Dumas, Frederick H. Epstein, Patrick A. Helm, Vincent Jacques, Steffi Koerner, Andrew Kolodziej, Luhua Shen, Wei-Chuan Sun, Zhaoda Zhang

Journal:

Angewandte Chemie

Year:

2007

Language:

english

File:

PDF, 362 KB

english, 2007

18

Collagen-Targeted MRI Contrast Agent for Molecular Imaging of Fibrosis

Peter Caravan, Biplab Das, Stéphane Dumas, Frederick H. Epstein, Patrick A. Helm, Vincent Jacques, Steffi Koerner, Andrew Kolodziej, Luhua Shen, Wei-Chuan Sun, Zhaoda Zhang

Journal:

Angewandte Chemie International Edition

Year:

2007

Language:

english

File:

PDF, 362 KB

english, 2007

19

The adhesion and spreading of thrombocyte vesicles on electrode surfaces

Victor Agmo Hernández, Juliane Niessen, Falk Harnisch, Stephan Block, Andreas Greinacher, Heyo K. Kroemer, Christiane A. Helm, Fritz Scholz

Journal:

Bioelectrochemistry

Year:

2008

Language:

english

File:

PDF, 535 KB

english, 2008

20

Synthesis, photochemistry and application of (7-methoxycoumarin-4-yl)methyl-caged 8-bromoadenosine cyclic 3′,5′-monophosphate and 8-bromoguanosine cyclic 3′,5′-monophosphate photolyzed in the nanosecond time region

Volker Hagen, Jürgen Bendig, Stephan Frings, Burkhard Wiesner, Björn Schade, S Helm, D Lorenz, U Benjamin Kaupp

Journal:

Journal of Photochemistry and Photobiology B: Biology

Year:

1999

Language:

english

File:

PDF, 406 KB

english, 1999

21

Dysfunctional regulation of αCaMKII and syntaxin 1B transcription after induction of LTP in the aged rat

S. Davis, H. Salin, A. Helme-Guizon, S. Dumas, A. Stéphan, M. Corbex, J. Mallet, S. Laroche

Journal:

European Journal of Neuroscience

Year:

2000

Language:

english

File:

PDF, 519 KB

english, 2000

22

Extension of Generator Longevity by Use of High Impedance Ventricular Leads

MIRELA SCHERER, KHALED EZZIDDIN, ARMIN KLESIUS, MANFRED SKUPIN, STEPHAN HELMS, ANTON MORITZ, HANS-GEORG OLBRICH

Journal:

Pacing and Clinical Electrophysiology

Year:

2001

Language:

english

File:

PDF, 162 KB

english, 2001

23

Terahertz nonlinear optics using intra-excitonic quantum well transitions: Sideband generation and AC Stark splitting

Martin Wagner, Harald Schneider, Dominik Stehr, Stephan Winnerl, Aaron M. Andrews, Stephan Schartner, Gottfried Strasser, Manfred Helm

Journal:

physica status solidi (b)

Year:

2011

Language:

english

File:

PDF, 258 KB

english, 2011

24

Isoquinoline-Based Lanthanide Complexes: Bright NIR Optical Probes and Efficient MRI Agents

Caillé, Fabien, Bonnet, Célia S., Buron, Frédéric, Villette, Sandrine, Helm, Lothar, Petoud, Stéphane, Suzenet, Franck, Tóth, Éva

Journal:

Inorganic Chemistry

Year:

2012

Language:

english

File:

PDF, 1.77 MB

english, 2012

25

Intersublevel Spectroscopy on Single InAs-Quantum Dots by Terahertz Near-Field Microscopy

Jacob, Rainer, Winnerl, Stephan, Fehrenbacher, Markus, Bhattacharyya, Jayeeta, Schneider, Harald, Wenzel, Marc Tobias, Ribbeck, Hans-Georg von, Eng, Lukas M., Atkinson, Paola, Schmidt, Oliver G., Helm

Journal:

Year:

2012

Language:

english

File:

PDF, 2.62 MB

english, 2012

26

Differential Expression ofbcl-2and Susceptibility to Programmed Cell Death in Lymphocytes of HIV-1-Infected Individuals

Thomas S. Dobmeyer, Stefan A. Klein, Jürgen M. Dobmeyer, Bernhard Raffel, Stephan Findhammer, Dieter Hoelzer, Eilke B. Helm, Rita Rossol, Dieter Kabelitz

Journal:

Clinical Immunology and Immunopathology

Year:

1998

Language:

english

File:

PDF, 218 KB

english, 1998

27

Ex Vivo Induction of Apoptosis in Lymphocytes Is Mediated by Oxidative Stress: Role for Lymphocyte Loss in HIV Infection

Thomas S Dobmeyer, Stephan Findhammer, Jürgen M Dobmeyer, Stefan A Klein, Bernhard Raffel, Dieter Hoelzer, Eilke B Helm, Dieter Kabelitz, Rita Rossol

Journal:

Free Radical Biology and Medicine

Year:

1997

Language:

english

File:

PDF, 345 KB

english, 1997

28

DNA microarray analysis ofSalmonellaserotype Typhimurium strains causing different symptoms of disease

Eva Litrup, Mia Torpdahl, Burkhard Malorny, Stephan Huehn, Morten Helms, Henrik Christensen, Eva M Nielsen

Journal:

BMC Microbiology

Year:

2010

Language:

english

File:

PDF, 624 KB

english, 2010

29

Gold nanoparticle tips for optical field confinement in infrared scattering near-field optical microscopy

Wenzel, Marc Tobias, Härtling, Thomas, Olk, Phillip, Kehr, Susanne C., Grafström, Stefan, Winnerl, Stephan, Helm, Manfred, Eng, Lukas M.

Journal:

Year:

2008

Language:

english

File:

PDF, 502 KB

english, 2008

30

Quantitative determination of the charge carrier concentration of ion implanted silicon by IR-near-field spectroscopy

Jacob, Rainer, Winnerl, Stephan, Schneider, Harald, Helm, Manfred, Wenzel, Marc Tobias, von Ribbeck, Hans-Georg, Eng, Lukas M., Kehr, Susanne C.

Journal:

Year:

2010

Language:

english

File:

PDF, 967 KB

english, 2010

31

Tunable narrowband THz pulse generation in scalable large area photoconductive antennas

Krause, Johannes, Wagner, Martin, Winnerl, Stephan, Helm, Manfred, Stehr, Dominik

Journal:

Year:

2011

Language:

english

File:

PDF, 1.62 MB

english, 2011

32

Optimum excitation conditions for the generation of high-electric-field terahertz radiation from an oscillator-driven photoconductive device

Dreyhaupt, André, Winnerl, Stephan, Helm, Manfred, Dekorsy, Thomas

Journal:

Year:

2006

Language:

english

File:

PDF, 155 KB

english, 2006

33

Deep sequencing of small RNAs confirms an annelid affinity of Myzostomida

Conrad Helm, Stephan H. Bernhart, Christian Höner zu Siederdissen, Birgit Nickel, Christoph Bleidorn

Journal:

Molecular Phylogenetics and Evolution

Year:

2012

Language:

english

File:

PDF, 884 KB

english, 2012

34

Charged Polymer Brushes: Counterion Incorporation and Scaling Relations

Ahrens, Heiko, Förster, Stephan, Helm, Christiane A.

Journal:

Physical Review Letters

Year:

1998

Language:

english

File:

PDF, 239 KB

english, 1998

35

Polyelectrolyte Brushes Grafted at the Air/Water Interface

Ahrens, Heiko, Förster, Stephan, Helm, Christiane A.

Journal:

Year:

1997

Language:

english

File:

PDF, 168 KB

english, 1997

36

Effect of 3D-scaffold formation on differentiation and survival in human neural progenitor cells

Stefanie Ortinau, Jürgen Schmich, Stephan Block, Andrea Liedmann, Ludwig Jonas, Dieter G Weiss, Christiane A Helm, Arndt Rolfs, Moritz J Frech

Journal:

BioMedical Engineering OnLine

Year:

2010

Language:

english

File:

PDF, 2.81 MB

english, 2010

37

Pathway of p-Coumaric Acid Incorporation into Maize Lignin As Revealed by NMR

Ralph, John, Hatfield, Ronald D., Quideau, Stephane, Helm, Richard F., Grabber, John H., Jung, Hans-Joachim G.

Journal:

Journal of the American Chemical Society

Year:

1994

Language:

english

File:

PDF, 2.52 MB

english, 1994

38

Physical properties of homogeneous TiO 2 films prepared by high power impulse magnetron sputtering as a function of crystallographic phase and nanostructure

Straňák, Vítězslav, Čada, Martin, Quaas, Marion, Block, Stephan, Bogdanowicz, Robert, Kment, Štěpán, Wulff, Harm, Hubička, Zdeněk, Helm, Christiane A, Tichý, Milan, Hippler, Rainer

Journal:

Journal of Physics D Applied Physics

Year:

2009

Language:

english

File:

PDF, 844 KB

english, 2009

39

Large area photoconductive terahertz emitter for 1.55 μm excitation based on an InGaAs heterostructure

Mittendorff, Martin, Xu, Ming, Dietz, Roman J B, Künzel, Harald, Sartorius, Bernd, Schneider, Harald, Helm, Manfred, Winnerl, Stephan

Journal:

Year:

2013

Language:

english

File:

PDF, 803 KB

english, 2013

40

Ultrafast graphene-based broadband THz detector

Mittendorff, Martin, Winnerl, Stephan, Kamann, Josef, Eroms, Jonathan, Weiss, Dieter, Schneider, Harald, Helm, Manfred

Journal:

Applied Physics Letters

Year:

2013

Language:

english

File:

PDF, 1.03 MB

english, 2013

41

Direct Visualization and Identification of Biofunctionalized Nanoparticles using a Magnetic Atomic Force Microscope

Block, Stephan, Glöckl, Gunnar, Weitschies, Werner, Helm, Christiane A.

Journal:

Year:

2011

Language:

english

File:

PDF, 3.87 MB

english, 2011

42

Semiconductor Quantum Wells

Wagner, Martin, Schneider, Harald, Stehr, Dominik, Winnerl, Stephan, Andrews, Aaron M., Schartner, Stephan, Strasser, Gottfried, Helm, Manfred

Journal:

Physical Review Letters

Year:

2010

Language:

english

File:

PDF, 445 KB

english, 2010

43

Terahertz generation and detection with InGaAs-based large-area photoconductive devices excited at 1.55 μm

Xu, Ming, Mittendorff, Martin, Dietz, Roman J. B., Künzel, Harald, Sartorius, Bernd, Göbel, Thorsten, Schneider, Harald, Helm, Manfred, Winnerl, Stephan

Journal:

Applied Physics Letters

Year:

2013

Language:

english

File:

PDF, 822 KB

english, 2013

44

quantum wells

Virgilio, Michele, Ortolani, Michele, Teich, Martin, Winnerl, Stephan, Helm, Manfred, Sabbagh, Diego, Capellini, Giovanni, De Seta, Monica

Journal:

Physical Review B

Year:

2014

Language:

english

File:

PDF, 1.07 MB

english, 2014

45

A novel contact model for AFM indentation experiments on soft spherical cell-like particles

Glaubitz, Michael, Medvedev, Nikolay, Pussak, Daniel, Hartmann, Laura, Schmidt, Stephan, Helm, Christiane A., Delcea, Mihaela

Journal:

Year:

2014

Language:

english

File:

PDF, 1.54 MB

english, 2014

46

Nonlinear Osmotic Brush Regime: Experiments, Simulations and Scaling Theory

Ahrens, Heiko, Förster, Stephan, Helm, Christiane A., Kumar, N. Arun, Naji, Ali, Netz, Roland R., Seidel, Christian

Journal:

Journal of Physical Chemistry B

Year:

2004

Language:

english

File:

PDF, 169 KB

english, 2004

47

Formation of Large PEE Domains in PEE 212 −PEO 112 Diblock Copolymer Monolayers: Shift of the PEO-Desorption Transition

Wesemann, Alexander, Ahrens, Heiko, Förster, Stephan, Helm, Christiane A.

Journal:

Year:

2004

Language:

english

File:

PDF, 245 KB

english, 2004

48

Internal Interface of a Compressed PEE−PEO Diblock Copolymer Monolayer

Wesemann, Alexander, Ahrens, Heiko, Steitz, Roland, Förster, Stephan, Helm, Christiane A.

Journal:

Year:

2003

Language:

english

File:

PDF, 163 KB

english, 2003

49

Temperature-Induced Transition from Odd–Even to Even–Odd Effect in Polyelectrolyte Multilayers Due to Interpolyelectrolyte Interactions

Nestler, Peter, Block, Stephan, Helm, Christiane A.

Journal:

Journal of Physical Chemistry B

Year:

2012

Language:

english

File:

PDF, 2.00 MB

english, 2012

50

Effects of Reactive Oxygen Species on Single Polycation Layers

Berg, Florian, Block, Stephan, Drache, Steffen, Hippler, Rainer, Helm, Christiane A.

Journal:

Journal of Physical Chemistry B

Year:

2013

Language:

english

File:

PDF, 4.20 MB

english, 2013