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1

Normalization at the field level: Fractional counting of citations

Loet Leydesdorff, Tobias Opthof

Journal:

Journal of Informetrics

Year:

2010

Language:

english

File:

PDF, 195 KB

english, 2010

2

Scopus's source normalized impact per paper (SNIP) versus a journal impact factor based on fractional counting of citations

Loet Leydesdorff, Tobias Opthof

Journal:

Journal of the American Society for Information Science and Technology

Year:

2010

Language:

english

File:

PDF, 74 KB

english, 2010

3

Turning the tables on citation analysis one more time: Principles for comparing sets of documents

Loet Leydesdorff, Lutz Bornmann, Rüdiger Mutz, Tobias Opthof

Journal:

Journal of the American Society for Information Science and Technology

Year:

2011

Language:

english

File:

PDF, 237 KB

english, 2011

4

Ventricular repolarization: An overview of (patho)physiology, sympathetic effects and genetic aspects

Chantal E. Conrath, Tobias Opthof

Journal:

Progress in Biophysics and Molecular Biology

Year:

2006

Language:

english

File:

PDF, 690 KB

english, 2006

5

A mutation in the human cardiac sodium channel (E161K) contributes to sick sinus syndrome, conduction disease and Brugada syndrome in two families

Jeroen P.P. Smits, Tamara T. Koopmann, Ronald Wilders, Marieke W. Veldkamp, Tobias Opthof, Zahir A. Bhuiyan, Marcel M.A.M. Mannens, Jeffrey R. Balser, Hanno L. Tan, Connie R. Bezzina, Arthur A.M. Wild

Journal:

Journal of Molecular and Cellular Cardiology

Year:

2005

Language:

english

File:

PDF, 717 KB

english, 2005

6

Models for the development of antiarrhythmic drugs

Michiel J. Janse, Tobias Opthof

Journal:

Drug Discovery Today: Disease Models

Year:

2005

Language:

english

File:

PDF, 87 KB

english, 2005

7

Transmural repolarization does not underlie the T-wave in the human heart. Correlation between in vivo data and computer simulations

De Bakker, Jacques M., Taggart, Peter, De Groot, Joris R., Opthof, Tobias, Conrath, Chantal E., Wilders, Ronald, Coronel, Ruben

Journal:

Year:

2005

Language:

english

File:

PDF, 111 KB

english, 2005

8

Dispersion in ventricular repolarization in the human, canine and porcine heart

Opthof, Tobias, Janse, Michiel J., Meijborg, Veronique M.F., Cinca, Juan, Rosen, Michael R., Coronel, Ruben

Journal:

Progress in Biophysics and Molecular Biology

Year:

2016

Language:

english

File:

PDF, 7.63 MB

english, 2016

9

Comparative Study of Nifekalant Versus Amiodarone for Shock-Resistant Ventricular Fibrillation in Out-of-Hospital Cardiopulmonary Arrest Patients

Amino, Mari, Yoshioka, Koichiro, Opthof, Tobias, Morita, Seiji, Uemura, Shunryo, Tamura, Kozo, Fukushima, Tomokazu, Higami, Shigeo, Otsuka, Hiroyuki, Akieda, Kazuki, Shima, Makiyoshi, Fujibayashi, Dai

Journal:

Journal of Cardiovascular Pharmacology

Year:

2010

Language:

english

File:

PDF, 625 KB

english, 2010

10

The electrocardiogram of vertebrates: Evolutionary changes from ectothermy to endothermy

Boukens, Bastiaan J.D., Kristensen, Ditte L., Filogonio, Renato, Carreira, Laura B.T., Sartori, Marina R., Abe, Augusto S., Currie, Shannon, Joyce, William, Conner, Justin, Opthof, Tobias, Crossley, D

Journal:

Progress in Biophysics and Molecular Biology

Year:

2018

Language:

english

File:

PDF, 3.60 MB

english, 2018

11

N-mode network approach for socio-semantic analysis of scientific publications

Hellsten, Iina, Opthof, Tobias, Leydesdorff, Loet

Journal:

Year:

2019

Language:

english

File:

PDF, 4.88 MB

english, 2019

12

Scopus' SNIP indicator: Reply to Moed

Loet Leydesdorff, Tobias Opthof

Journal:

Journal of the American Society for Information Science and Technology

Year:

2011

Language:

english

File:

PDF, 43 KB

english, 2011

13

Caveats for the journal and field normalizations in the CWTS (“Leiden”) evaluations of research performance

Tobias Opthof, Loet Leydesdorff

Journal:

Journal of Informetrics

Year:

2010

Language:

english

File:

PDF, 293 KB

english, 2010

14

Remaining problems with the “New Crown Indicator” (MNCS) of the CWTS

Loet Leydesdorff, Tobias Opthof

Journal:

Journal of Informetrics

Year:

2011

Language:

english

File:

PDF, 114 KB

english, 2011

15

Cardiomyocyte differentiation of mouse and human embryonic stem cells

C. Mummery, D. Ward, C. E. Van Den Brink, S. D. Bird, P. A. Doevendans, T. Opthof, A. Brutel De La Riviere, L. Tertoolen, M. Van Der Heyden, M. Pera

Journal:

Journal of Anatomy

Year:

2002

Language:

english

File:

PDF, 6.22 MB

english, 2002

16

Arrhythmogenesis in Heart Failure

MICHIEL J. JANSE, JESSICA T. VERMEULEN, TOBIAS OPTHOF, RUBEN CORONEL, FRANCIEN J. G. WILMS-SCHOPMAN, HAN M. E. RADEMAKER, ANTONIUS BAARTSCHEER, LUKAS R. C. DEKKER

Journal:

Journal of Cardiovascular Electrophysiology

Year:

2001

Language:

english

File:

PDF, 148 KB

english, 2001

17

The mammalian sinoatrial node

Journal:

Cardiovascular Drugs and Therapy

Year:

1988

Language:

english

File:

PDF, 2.77 MB

english, 1988

18

The effect of enhanced gap junctional conductance on ventricular conduction in explanted hearts from patients with heart failure

Rob F. Wiegerinck, Jacques M. T. de Bakker, Tobias Opthof, Nicolaas de Jonge, Hans Kirkels, Francien J. G. Wilms-Schopman, Ruben Coronel

Journal:

Basic Research in Cardiology

Year:

2009

Language:

english

File:

PDF, 732 KB

english, 2009

19

Connexin43 orthologues in vertebrates: phylogeny from fish to man

MarcelA.G. Heyden, Marleen Eijk, Ronald Wilders, JacquesM.T. Bakker, Tobias Opthof

Journal:

Development Genes and Evolution

Year:

2004

Language:

english

File:

PDF, 458 KB

english, 2004

20

A comment to the paper by Waltman et al., Scientometrics, 87, 467–481, 2011

Tobias Opthof, Loet Leydesdorff

Journal:

Year:

2011

Language:

english

File:

PDF, 180 KB

english, 2011

21

A rejoinder on energy versus impact indicators

Loet Leydesdorff, Tobias Opthof

Journal:

Year:

2012

Language:

english

File:

PDF, 163 KB

english, 2012

22

Embryological development of pacemaker hierarchy and membrane currents related to the function of the adult sinus node: implications for autonomic modulation of biopacemakers

Journal:

Medical and Biological Engineering and Computing

Year:

2007

Language:

english

File:

PDF, 452 KB

english, 2007

23

Differences in citation frequency of clinical and basic science papers in cardiovascular research

Journal:

Medical and Biological Engineering and Computing

Year:

2011

Language:

english

File:

PDF, 635 KB

english, 2011

24

The anti-protozoal drug pentamidine blocks KIR2.x-mediated inward rectifier current by entering the cytoplasmic pore region of the channel

TP De Boer, L Nalos, A Stary, B Kok, MJC Houtman, G Antoons, TAB Van Veen, JDM Beekman, BL De Groot, T Opthof, MB Rook, MA Vos, MAG Van Der Heyden

Journal:

British Journal of Pharmacology

Year:

2010

Language:

english

File:

PDF, 745 KB

english, 2010

25

Gap Junctions in the Sinoatrial Node: : Immunohistochemical Localization and Correlation with Activation Pattern

Journal:

Journal of Cardiovascular Electrophysiology

Year:

1994

Language:

english

File:

PDF, 2.48 MB

english, 1994

26

ω-3 Polyunsaturated fatty acids (PUFAs or fish oils) and atrial fibrillation

T Opthof, H M Den Ruijter

Journal:

British Journal of Pharmacology

Year:

2007

Language:

english

File:

PDF, 64 KB

english, 2007

27

Ischaemic preconditioning delays ischaemia induced cellular electrical uncoupling in rabbit myocardium by activation of ATP sensitive potassium channels

Tan, H. L, Mazon, P., Verberne, H. J, Sleeswijk, M. E, Coronel, R., Opthof, T., Janse, M. J

Journal:

Cardiovascular Research

Year:

1993

Language:

english

File:

PDF, 847 KB

english, 1993

28

Fraud and misconduct in science: the stem cell seduction

M. A. G. van der Heyden, T. van de Derks Ven, T. Opthof

Journal:

Netherlands Heart Journal

Year:

2009

Language:

english

File:

PDF, 92 KB

english, 2009

29

The Hirsch-index: a simple, new tool for the assessment of scientific output of individual scientists

T. Opthof, A. A. M. Wilde

Journal:

Netherlands Heart Journal

Year:

2009

Language:

english

File:

PDF, 296 KB

english, 2009

30

Bibliometric data in clinical cardiology revisited. The case of 37 Dutch professors

T. Opthof, A. A. M. Wilde

Journal:

Netherlands Heart Journal

Year:

2011

Language:

english

File:

PDF, 299 KB

english, 2011

31

One more time: bibliometric analysis of scientific output remains complicated

T. Opthof, A. A. M. Wilde

Journal:

Netherlands Heart Journal

Year:

2011

Language:

english

File:

PDF, 71 KB

english, 2011

32

The positive T wave

Mark Potse, Ruben Coronel, Tobias Opthof, Alain Vinet

Journal:

Journal of Electrocardiology

Year:

2007

Language:

english

File:

PDF, 52 KB

english, 2007

33

Electrotonic cancellation of transmural electrical gradients in the left ventricle in man

Peter Taggart, Peter Sutton, Tobias Opthof, Ruben Coronel, Panny Kallis

Journal:

Progress in Biophysics and Molecular Biology

Year:

2003

Language:

english

File:

PDF, 207 KB

english, 2003

34

Sp1 and Sp3 Activate the Rat Connexin40 Proximal Promoter

Birgit E.J. Teunissen, Shirley C.M. van Amersfoorth, Tobias Opthof, Habo J. Jongsma, Marti F.A. Bierhuizen

Journal:

Biochemical and Biophysical Research Communications

Year:

2002

Language:

english

File:

PDF, 219 KB

english, 2002

35

R 56865 Delays Cellular Electrical Uncoupling in Ischemic Rabbit Papillary Muscle

Hanno L. Tan, Alexandra O. Netea, Mengalvio E. Sleeswijk, Pilar Mazón, Ruben Coronel, Tobias Opthof, Michiel J. Janse

Journal:

Journal of Molecular and Cellular Cardiology

Year:

1993

File:

PDF, 298 KB

1993

36

Electrophysiologic and Extracellular Ionic Changes During Acute Ischemia in Failing and Normal Rabbit Myocardium

Jessica T. Vermeulen, Hanno L. Tan, Han Rademaker, Cees A. Schumacher, Peter Loh, Tobias Opthof, Ruben Coronel, Michiel J. Janse

Journal:

Journal of Molecular and Cellular Cardiology

Year:

1996

Language:

english

File:

PDF, 211 KB

english, 1996

37

The Origin of Increased Cytoplasmic Calcium upon Reversal of the Na+/Ca2+-Exchanger in Isolated Rat Ventricular Myocytes

A. Baartscheer, C.A. Schumacher, T. Opthof, J.W.T. Fiolet

Journal:

Journal of Molecular and Cellular Cardiology

Year:

1996

Language:

english

File:

PDF, 184 KB

english, 1996

38

Inhomogeneous Transmural Conduction During Early Ischaemia in Patients with Coronary Artery Disease

Peter Taggart, Peter MI Sutton, Tobias Opthof, Ruben Coronel, Richard Trimlett, Wilfred Pugsley, Panny Kallis

Journal:

Journal of Molecular and Cellular Cardiology

Year:

2000

Language:

english

File:

PDF, 196 KB

english, 2000

39

Remodeling of Gap Junctions in Mouse Hearts Hypertrophied by Forced Retinoic Acid Signaling

Toon A.B. van Veen, Harold V.M. van Rijen, Rob F. Wiegerinck, Tobias Opthof, Melissa C. Colbert, Sophie Clement, Jacques M.T. de Bakker, Habo J. Jongsma

Journal:

Journal of Molecular and Cellular Cardiology

Year:

2002

Language:

english

File:

PDF, 483 KB

english, 2002

40

Phase dependency of electrotonic spread of hyperpolarizing current pulses in the rabbit sinoatrial node

Jeroen J. Duivenvoorden, Lennart N. Bouman, Feliksas F. Bukauskas, Tobias Opthof, Habo J. Jongsma

Journal:

Journal of Molecular and Cellular Cardiology

Year:

1990

Language:

english

File:

PDF, 1.04 MB

english, 1990

41

Mere opening of KATP channels does not contribute to accumulation of K+ in the globally ischemic rabbit heart

A. Wilde, C. Schumacher, J. Fiolet, T. Opthof, M. Janse

Journal:

Journal of Molecular and Cellular Cardiology

Year:

1992

Language:

english

File:

PDF, 92 KB

english, 1992

42

Sympathetic influences on the electrophysiology of the ischaemic myocardium

Michiel J Janse, Tobias Opthof

Journal:

Journal of Molecular and Cellular Cardiology

Year:

1992

Language:

english

File:

PDF, 116 KB

english, 1992

43

The relation between extracellular potassium concentration and pH in the border zone during regional ischemia in isolated porcine hearts

Ruben Coronel, Francien J.G. Wilms-Schopman, Jan W.T. Fiolet, Tobias Opthof, Michiel J. Janse

Journal:

Journal of Molecular and Cellular Cardiology

Year:

1995

Language:

english

File:

PDF, 395 KB

english, 1995

44

T-type Ca2+ channel blockers prevent cardiac cell hypertrophy through an inhibition of calcineurin–NFAT3 activation as well as L-type Ca2+ channel blockers

Mitsuru Horiba, Takao Muto, Norihiro Ueda, Tobias Opthof, Keiko Miwa, Mayumi Hojo, Jong-Kook Lee, Kaichiro Kamiya, Itsuo Kodama, Kenji Yasui

Journal:

Year:

2008

Language:

english

File:

PDF, 700 KB

english, 2008

45

Repolarization gradients in the intact heart: Transmural or apico-basal?

Michiel J. Janse, Ruben Coronel, Tobias Opthof, Eugene A. Sosunov, Evgeny P. Anyukhovsky, Michael R. Rosen

Journal:

Progress in Biophysics and Molecular Biology

Year:

2012

Language:

english

File:

PDF, 1.04 MB

english, 2012

46

Developmental changes of Ca2+ handling in mouse ventricular cells from early embryo to adulthood

Weiran Liu, Kenji Yasui, Tobias Opthof, Ryoji Ishiki, Jong-Kook Lee, Kaichiro Kamiya, Mitsuhiro Yokota, Itsuo Kodama

Journal:

Year:

2002

Language:

english

File:

PDF, 279 KB

english, 2002

47

The works of Dirk Durrer (1918–1984)

T. Opthof, M. J. Janse, A. G. Kléber, H. J. J. Wellens, A. A. M. Wilde, R. Coronel

Journal:

Netherlands Heart Journal

Year:

2012

Language:

english

File:

PDF, 237 KB

english, 2012

48

Cycle length dependence of the chronotropic effects of adrenaline, acetylcholine, Ca2+ and Mg2+ in the Guinea-pig sinoatrial node

Tobias Opthof, Berend de Jonge, Branca Schade, Habo J. Jongsma, Lennart N. Bouman

Journal:

Journal of the Autonomic Nervous System

Year:

1984

Language:

english

File:

PDF, 1.02 MB

english, 1984

49

Ventricular tachyrdia in the infarcted, Langendorff-perfused human heart: Role of the arrangement of surviving cardiac fibers

Jacques M.T. de Baker, Ruben Coronel, Sara Tasseron, Arthur A.M. Wilde, Tobias Opthof, Michiel J. Janse, Frans J.L. van Capelle, Anton E. Becker, George Jambroes

Journal:

Journal of the American College of Cardiology

Year:

1990

Language:

english

File:

PDF, 6.07 MB

english, 1990

50

Dispersion of “refractoriness” in patients with ventricular fibrillation in the chronic phase of myocardial infarction

Anand Ramdat Misier, Tobias OptHof, Norbert M. van Hemel, Jo Defauw, Jacques de Bakker, Frans van Capelle, Herre Kingma, Michiel Janse

Journal:

Journal of the American College of Cardiology

Year:

1991

Language:

english

File:

PDF, 234 KB

english, 1991

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