TY  - JOUR
A1  - Atlas, Glen
A1  - Brealey, David
A1  - Dhar, Sunil
A1  - Dikta, Gerhard
A1  - Singer, Meryvn
T1  - Additional hemodynamic measurements with an esophageal Doppler monitor: a preliminary report of compliance, force, kinetic energy, and afterload in the clinical setting
JF  - Journal of clinical monitoring and computing
N2  - The esophageal Doppler monitor (EDM) is a minimally-invasive hemodynamic device which evaluates both cardiac output (CO), and fluid status, by estimating stroke volume (SV) and calculating heart rate (HR). The measurement of these parameters is based upon a continuous and accurate approximation of distal thoracic aortic blood flow. Furthermore, the peak velocity (PV) and mean acceleration (MA), of aortic blood flow at this anatomic location, are also determined by the EDM. The purpose of this preliminary report is to examine additional clinical hemodynamic calculations of: compliance (C), kinetic energy (KE), force (F), and afterload (TSVRi). These data were derived using both velocity-based measurements, provided by the EDM, as well as other contemporaneous physiologic parameters. Data were obtained from anesthetized patients undergoing surgery or who were in a critical care unit. A graphical inspection of these measurements is presented and discussed with respect to each patient’s clinical situation. When normalized to each of their initial values, F and KE both consistently demonstrated more discriminative power than either PV or MA. The EDM offers additional applications for hemodynamic monitoring. Further research regarding the accuracy, utility, and limitations of these parameters is therefore indicated.
KW  - Acceleration
KW  - Velocity
KW  - Kinetic energy
KW  - Force
KW  - Compliance
KW  - Afterload
KW  - Contractility
KW  - Volume status
KW  - Esophageal Doppler monitor
Y1  - 2012
SN  - 1573-2614
U6  - https://doi.org/10.1007/s10877-012-9386-5
IS  - 26
SP  - 473
EP  - 482
PB  - Springer Nature
CY  - London
ER  - 
TY  - JOUR
A1  - Asante-Asamani, E.O.
A1  - Kleefeld, Andreas
A1  - Wade, B.A.
T1  - A second-order exponential time differencing scheme for non-linear reaction-diffusion systems with dimensional splitting
JF  - Journal of Computational Physics
N2  - A second-order L-stable exponential time-differencing (ETD) method is developed by combining an ETD scheme with approximating the matrix exponentials by rational functions having real distinct poles (RDP), together with a dimensional splitting integrating factor technique. A variety of non-linear reaction-diffusion equations in two and three dimensions with either Dirichlet, Neumann, or periodic boundary conditions are solved with this scheme and shown to outperform a variety of other second-order implicit-explicit schemes. An additional performance boost is gained through further use of basic parallelization techniques.
KW  - Exponential time differencing
KW  - Real distinct pole
KW  - Dimensional splitting
KW  - Reaction-diffusion systems
KW  - Matrix exponential
Y1  - 2020
U6  - https://doi.org/10.1016/j.jcp.2020.109490
SN  - 0021-9991
N1  - Corresponding author: Andreas Kleefeld
VL  - 415
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Zhou-Stache, J.
A1  - Buettner, R.
A1  - Mittermayer, C. [u.a.]
T1  - Inhibition of TNF-alpha induced cell death in HUVEC and Jurkat cells by protocatechuic acid. Zhou-Stache, J.; Buettner, R.; Artmann, Gerhard Michael; Mittermayer, C.; Bosserhoff, A. K.
JF  - Medical and Biological Engineering and Computing. 40 (2002), H. 6
Y1  - 2002
SN  - 0140-0118
SP  - 698
EP  - 703
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Zerlin, Kay
A1  - Digel, Ilya
A1  - Stadler, Andreas M.
T1  - Physical discontinuities at body temperature in human red blood cells / Artmann, GM ; Zerlin, K ; Digel, I ; Stadler, A ; Zaccai, G ; Temiz, AA
JF  - Tissue Engineering. 13 (2007), H. 7
Y1  - 2007
SN  - 1076-3279
N1  - TERMIS-EU Meeting Abstracts London, UK September 4–7, 2007
SP  - 1778
EP  - 1778
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Zerlin, Kay
A1  - Digel, Ilya
T1  - Hemoglobin Senses Body Temperature
JF  - Bioengineering in Cell and Tissue Research / Artmann, Gerhard M. ; Chien, Shu (Eds.)
Y1  - 2008
SN  - 978-3-540-75408-4
SP  - 415
EP  - 447
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Zang, Werner
T1  - Fully automatic measurement of rheologic parameters of red blood cells = Laborautomat zur Messung mechanischer Eigenschaften roter Blutzellen
JF  - Biomedizinische Technik = Biomedical engineering. 35 (1990), H. Suppl. 3
Y1  - 1990
SN  - 0013-5585
SP  - 94
EP  - 96
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Trzewik, Jürgen
A1  - Mallipattu, S. K.
A1  - Delano, F. A. [u.a.]
T1  - Evidence for a second valve system in Lymphatics: Endothelial Microvalves. Trzewik, Jürgen; Mallipattu, S. K.; Artmann, Gerhard Michael; Delano, F. A.; Schmid-Schonbein, G. W
JF  - The FASEB Journal. 15 (2001)
Y1  - 2001
SN  - 1530-6860
SP  - 1711
EP  - 1717
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Trzewik, Jürgen
A1  - Ates, M.
T1  - A novel method to quantify mechanical tension in cell monolayers. Trzewik, Jürgen; Ates, M., Artmann, Gerhard Michael
JF  - Biomedizinische Technik. 47 (2002), H. Suppl. 1. Pt. 1
Y1  - 2002
SN  - 0013-5585
N1  - Druckausgabe unter 63 Z 47 vorhanden
SP  - 379
EP  - 381
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Trzewik, J.
A1  - Schmid-Schönbein, G. W.
T1  - Investigation on lymphatic endothelial microvalves / Trzewik, J. ; Artmann, G. M. ; Schmid-Schönbein, G. W.
JF  - Biomedizinische Technik = Biomedical Engineering. 45 (2000), H. s1
Y1  - 2000
SN  - 1862-278X
SP  - 521
EP  - 522
ER  - 
TY  - BOOK
A1  - Artmann, Gerhard
A1  - Temiz Artmann, Aysegül
A1  - Zhubanova, Azhar A.
A1  - Digel, Ilya
ED  - Artmann, Gerhard
ED  - Temiz Artmann, Aysegül
ED  - Zhubanova, Azhar A.
ED  - Digel, Ilya
T1  - Biological, physical and technical basics of cell engineering
Y1  - 2018
SN  - 978-981-10-7903-0
PB  - Springer
CY  - Singapore
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Sung, K.-L. Paul
A1  - Horn, Thomas
A1  - Whittemore, Darren [u.a.]
T1  - Micropipette aspiration of human erythrocytes induces echinocytes via membrane phospholipid translocation. Artmann, Gerhard Michael; Sung, K.-L. Paul; Horn, Thomas; Whittemore, Darren; Norwich, Gerald; Chien, Shu
JF  - Biophysical journal. 72 (1997), H. 3
Y1  - 1997
SN  - 1542-0086
SP  - 1434
EP  - 1441
ER  - 
TY  - CHAP
A1  - Artmann, Gerhard
A1  - Stadler, Andreas M.
A1  - Embs, Jan P.
A1  - Zaccai, Giuseppe
A1  - Büldt, Georg
A1  - Digel, Ilya
A1  - Temiz Artmann, Aysegül
T1  - The crucial role of water in a phase transition of hemoglobin at body temperature : [abstract]
N2  - The observation of a temperature transition of hemoglobin occurring at a critical temperature close to body temperature
KW  - Hämoglobin
KW  - Erythrozyt
KW  - Körpertemperatur
Y1  - 2010
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Shi, Young de
A1  - Agosti, R.
A1  - Longhini, E.
T1  - A modified casson equation to characterize blood rheology for hypertension. Shi, Young de; Artmann, Gerhard Michael; Agosti, R.; Longhini, E.
JF  - Clinical Hemorheology Microcirculation. 19 (1998), H. 2
Y1  - 1998
SN  - 1386-0291
SP  - 115
EP  - 127
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Schmid-Schönbein, H.
A1  - Schröder, Susanne
A1  - Grebe, R. [u.a.]
T1  - Influence of Moxaverine-HCL on Membrane Curvature and Microsieve Filterability of Red Cells after Exposure to Hyperosmolarity and Lactacidosis. Schmid-Schönbein, H.; Schröder, Susanne; Grebe, R.; Artmann, Gerhard Michael, Eschweiler, H; Teitel, P.
JF  - Arzneimittelforschung. 38 (1988), H. 5
Y1  - 1988
SN  - 0004-4172
SP  - 710
EP  - 716
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Schmid-Schönbein, H.
A1  - Grebe, R.
A1  - Teitel, P. [u.a.]
T1  - Restoration of Microsieve Filterability of Human Red Cells After Exposure to Hyperosmolarity and Lactazidosis: Effect of Vinpocetine. Schmid-Schönbein, H.; Grebe, R.; Teitel, P.; Artmann, Gerhard Michael, Eschweiler, H.; Schröder, Susanne
JF  - Drug Development Research. 14 (1988), H. 3-4
Y1  - 1988
SN  - 1098-2299
N1  - Abstracts frei unter:
SP  - 205
EP  - 211
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Schmid-Schönbein, H.
T1  - The microscope-photometrical-monolayer-technique- a new principle for analyzing the distribution of rheological responses in pathological and experimentally modified red cell populations. Artmann, Gerhard Michael; Schmid-Schönbein, H.
JF  - Microcirculation, an update : proceedings of the Fourth World Congress for Microcirculation, Tokyo, Japan, July 26-30, 1987
Y1  - 1987
SN  - 0444809511
N1  - World Congress for Microcirculation (4, 1987, Tokyo;); International congress series ; 755
SP  - 475
EP  - 477
PB  - Excerpta Medica
CY  - Amsterdam [u.a.]
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Schikarsky, C.
T1  - Ginkgo Biloba extract (EGb 761) protects red blood cells from oxidative damage. Artmann, Gerhard Michael; Schikarsky, C.
JF  - Clinical Hemorheology. 13 (1993), H. 4
Y1  - 1993
SN  - 0271-5198
SP  - 529
EP  - 539
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Li, Anlan
A1  - Ziemer, J.
A1  - Schneider, G. [u.a.]
T1  - A photometric method to analyze induced erythrocyte shape changes. Artmann, Gerhard Michael; Li, Anlan; Ziemer, J.; Schneider, G.; Sahm, U.: ; Ziemer, J.; Schneider, G.; Sahm, U.
JF  - Biorheology. 33 (1996), H. 3
Y1  - 1996
SN  - 0006-355x
SP  - 251
EP  - 265
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Li, Anlan
A1  - Seipelt, H.
A1  - Müller, C. [u.a.]
T1  - Effects of salicylic acid derivatives on red blood cell membranes. Li, Anlan; Seipelt, H.; Müller, C.;Shi, Yong de; Artmann, Gerhard Michael
JF  - Pharmacology and Toxicology. 85 (1999)
Y1  - 1999
SN  - 0902-9938
SP  - 206
EP  - 211
ER  - 
TY  - JOUR
A1  - Artmann, Gerhard
A1  - Li, Anlan
T1  - Dihydroergocryptine maintains erythrocyte fluidity in acidotic and hyperosmolar suspensions modelling hypoxic and ischemic microcirculation. Li, Anlan; Artmann, Gerhard Michael
JF  - Clinical Hemorheology. 15 (1994), H. 2
Y1  - 1994
SN  - 0271-5198
SP  - 133
EP  - 146
ER  -