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Zhang D, König R, Feng Y, Burhenn R, Brezinsek S, Jakubowski M, Buttenschön B, Niemann H, Pavone A, Krychowiak M, Kwak S, Svensson J, Gao Y, Pedersen TS, Alonso A, Baldzuhn J, Beidler CD, Biedermann C, Bozhenkov S, Brunner KJ, Damm H, Hirsch M, Giannone L, Drewelow P, Effenberg F, Fuchert G, Hammond KC, Höfel U, Killer C, Knauer J, Laqua HP, Laube R, Pablant N, Pasch E, Penzel F, Rahbarnia K, Reimold F, Thomsen H, Winters V, Wagner F, Klinger T. First Observation of a Stable Highly Dissipative Divertor Plasma Regime on the Wendelstein 7-X Stellarator. PHYSICAL REVIEW LETTERS 2019; 123:025002. [PMID: 31386539 DOI: 10.1103/physrevlett.123.025002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Indexed: 06/10/2023]
Abstract
For the first time, the optimized stellarator Wendelstein 7-X has operated with an island divertor. An operation regime in hydrogen was found in which the total plasma radiation approached the absorbed heating power without noticeable loss of stored energy. The divertor thermography recorded simultaneously a strong reduction of the heat load on all divertor targets, indicating almost complete power detachment. This operation regime was stably sustained over several energy confinement times until the preprogrammed end of the discharge. The plasma radiation is mainly due to oxygen and is located at the plasma edge. This plasma scenario is reproducible and robust at various heating powers, plasma densities, and gas fueling locations. These experimental results show that the island divertor concept actually works and displays good power dissipation potential, producing a promising exhaust concept for the stellarator reactor line.
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Wagner F, Knipfer C, Holzinger D, Ploder O, Nkenke E. Webinars for continuing education in oral and maxillofacial surgery: the austrian experience. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wagner F, Knipfer C, Holzinger D, Ploder O, Nkenke E. Webinars for continuing education in oral and maxillofacial surgery: The Austrian experience. J Craniomaxillofac Surg 2019; 47:537-541. [PMID: 30770257 DOI: 10.1016/j.jcms.2019.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/04/2019] [Indexed: 11/25/2022] Open
Abstract
The aim of the present study was to evaluate the acceptance of a webinar series for continuing medical education hosted by the Austrian Society for Oral and Maxillofacial Surgery (ÖGMKG). A series of twelve webinars was streamed via the Internet and the participants' satisfaction was evaluated by an online questionnaire. 51 out of 140 participants (36.4%) completed the questionnaire completely and were included into the study for further analysis. The mean age of the participants was 37.9 ± 8.9 and did not vary significantly between gender (p = 0.53). The results of the questionnaire revealed a positive attitude of the participants towards this kind of webinar. The participants found that the webinars allowed for an adequate transfer of knowledge. Continuing medical education by webinars in oral and maxillofacial surgery is well accepted by the participants. Although both male and female participants had a positive attitude towards the webinars, females gave even better ratings than their male counterparts did.
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Zimpfer D, Riebandt J, Hayward C, Schramm R, Ozbaran M, Engin C, Garbade J, Simon A, Tsui S, Wagner F, Fiane E, Paç M, Kervan U, Schmitto D. The HeartWare HVAD System for the Treatment of Advanced Heart Failure Patients with Biventricular Support. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Paech C, Wagner F, Strehlow V, Gebauer RA. Drug-Induced Loss of Preexcitation in Pediatric Patients with WPW Pattern During Electrophysiologic Study. Pediatr Cardiol 2019; 40:194-197. [PMID: 30203293 DOI: 10.1007/s00246-018-1979-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 09/01/2018] [Indexed: 10/28/2022]
Abstract
Ablation of accessory pathways (AP) is one of the most often performed procedures in pediatric electrophysiology. In pediatric patients these procedures are mostly performed in anaesthesia or sedation. In some of these patients who are referred for electrophysiologic (EP) study, we could observe disappearance of the preexcitation, i.e. antegrade conduction of an AP during introduction of sedation. As a suppression of AP conduction capacities has been reported as negative side effect of propofol and other anaesthetics, the aim of this study was to evaluate risk factors for drug-induced suppression of AP conduction properties. Consecutive, pediatric patients with Wolff-Parkinson-White (WPW) pattern referred for EP study in the period of 2016-2017 were reviewed in retrospect. Patients with complex congenital heart disease were excluded. An entire chart review including ECG, bicycle stress testing, and periprocedural data was performed. In 4 of 37 patients included into the study, loss of preexcitation could be observed during sedation. Data analysis showed weaker conduction capacities of the AP as a risk factor (p = 0.009). Interestingly, absolute (p = 0.11) or adjusted to body weight (p = 0.92) drug doses were not a relevant risk factor. Patients with WPW and weaker conduction capacities of the AP, as implied by an early disappearance of preexcitation during exercise stress testing, seem to be more prone to drug-induced suppression of an AP.
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Schmitto J, Dogan G, Hanke S, Riebandt J, Ozbaran M, Engin C, Kervan U, Paç M, Horvath V, Klotz S, Wagner F, Roussel C, Shrestha M, Feldmann C, Chatterjee A, Martens A, Zimpfer D. A Multicenter Analysis of Implantation via a Thoracotomy Approach of a Left Ventricular Assist System for the Treatment of Advanced Heart Failure. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Schmitto D, Dogan G, Hanke S, Riebandt J, Ozbaran M, Engin C, Kervan U, Paç M, Horvath V, Klotz S, Wagner F, Roussel C, Shrestha M, Feldmann C, Chatterjee A, Martens A, Zimpfer D. Alternative Outflow Graft Placement during Thoracotomy Implant of the HVAD System for the Treatment of Advanced Heart Failure. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1679026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Knipfer C, Wagner F, Knipfer K, Millesi G, Acero J, Hueto JA, Nkenke E. Learners' acceptance of a webinar for continuing medical education. Int J Oral Maxillofac Surg 2018; 48:841-846. [PMID: 30594476 DOI: 10.1016/j.ijom.2018.11.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/28/2018] [Accepted: 11/21/2018] [Indexed: 10/27/2022]
Abstract
The aim of this study was to evaluate learners' acceptance of a webinar for continuing medical education that was instigated by the International Association of Oral and Maxillofacial Surgeons (IAOMS). A live, interactive webinar on orthognathic surgery was broadcast via the Internet. The learners' acceptance of the webinar was evaluated using a standardized, validated questionnaire (Student Evaluation of Educational Quality, SEEQ). One hundred and fifty-three participants attended the webinar; 55 participants (46 male, nine female) completed the questionnaire. The mean age of the respondents was 41.6±10.0years. The age of male and female respondents did not differ significantly. The respondents were spread over five continents, with the highest number from Brazil. The SEEQ showed a high level of acceptance for almost all subscales. There was no statistically significant difference between male and female respondents concerning acceptance of the webinar (P=0.614). The wide distribution of participants shows the potential for webinars as facilitators of barrier-free distribution of knowledge. The webinar was well accepted by the attendees independent of sex, specialty, and work experience. However, the sex ratio reflects the underrepresentation of women in oral and maxillofacial surgery.
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Mao JY, Rosmej O, Ma Y, Li MH, Aurand B, Gaertner F, Wang WM, Urbancic J, Schoenlein A, Zielbauer B, Eisenbarth U, Bagnoud V, Wagner F, Horst F, Syha M, Mathias S, Li YT, Aeschlimann M, Chen LM, Kuehl T. Energy enhancement of the target surface electron by using a 200 TW sub-picosecond laser. OPTICS LETTERS 2018; 43:3909-3912. [PMID: 30106914 DOI: 10.1364/ol.43.003909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
One order of magnitude energy enhancement of the target surface electron beams with central energy at 11.5 MeV is achieved by using a 200 TW, 500 fs laser at an incident angle of 72° with a prepulse intensity ratio of 5×10-6. The experimental results demonstrate the scalability of the acceleration process to high electron energy with a longer (sub-picosecond) laser pulse duration and a higher laser energy (120 J). The total charge of the beam is 400±20 pC(E>2.7 MeV). Such a high orientation and mono-energetic electron jet would be a good method to solve the problem of the large beam divergence in fast ignition schemes and to increase the laser energy deposition on the target core.
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Hakim A, Wagner F. Another Important Pitfall in the Diagnosis of Dural Sinus Thrombosis in Neonates. AJNR Am J Neuroradiol 2018; 39:E92. [PMID: 29773565 DOI: 10.3174/ajnr.a5674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Séguin P, Wagner F, Mignardot J, Le Goff C, Komi S, Demaesmaker R, Capogrosso M, Maccracken L, Vat M, Minassian K, Bloch J, Courtine G. Spatiotemporal neuromodulation of the spinal cord in combination with a gravity-assist training to improve locomotor recovery in humans with spinal cord injury. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Scott GG, Carroll DC, Astbury S, Clarke RJ, Hernandez-Gomez C, King M, Alejo A, Arteaga IY, Dance RJ, Higginson A, Hook S, Liao G, Liu H, Mirfayzi SR, Rusby DR, Selwood MP, Spindloe C, Tolley MK, Wagner F, Zemaityte E, Borghesi M, Kar S, Li Y, Roth M, McKenna P, Neely D. Dual Ion Species Plasma Expansion from Isotopically Layered Cryogenic Targets. PHYSICAL REVIEW LETTERS 2018; 120:204801. [PMID: 29864368 DOI: 10.1103/physrevlett.120.204801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 02/19/2018] [Indexed: 06/08/2023]
Abstract
A dual ion species plasma expansion scheme from a novel target structure is introduced, in which a nanometer-thick layer of pure deuterium exists as a buffer species at the target-vacuum interface of a hydrogen plasma. Modeling shows that by controlling the deuterium layer thickness, a composite H^{+}/D^{+} ion beam can be produced by target normal sheath acceleration (TNSA), with an adjustable ratio of ion densities, as high energy proton acceleration is suppressed by the acceleration of a spectrally peaked deuteron beam. Particle in cell modeling shows that a (4.3±0.7) MeV per nucleon deuteron beam is accelerated, in a directional cone of half angle 9°. Experimentally, this was investigated using state of the art cryogenic targetry and a spectrally peaked deuteron beam of (3.4±0.7) MeV per nucleon was measured in a cone of half angle 7°-9°, while maintaining a significant TNSA proton component.
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Paech C, Anhalt M, Gebauer R, Wagner F, Vogel M, Kirsten T, Weidenbach M, Kiess W, Dähnert I, Körner A. New normal limits for pediatric ECG in childhood obesity? Influence of childhood obesity on the ECG. PROGRESS IN PEDIATRIC CARDIOLOGY 2018. [DOI: 10.1016/j.ppedcard.2017.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bernhardt A, Hillebrand M, Hakmi S, Yildirim Y, Wagner F, Barten M, Reichenspurner H, Lubos E. Percutaneous Left Atrial Venting for Prevention of Pulmonary Edema under Extracorporeal Membrane Oxygenation Therapy. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Cifarelli L, Wagner F. Preface. EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201818900001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bernhardt A, Hakmi S, Levin A, Stehlik J, Edwards L, Wagner F, Benden C, Reichenspurner H. “Old-for-Old” in Lung Transplantation? Insights from the ISHLT Database. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Petersen J, Hakmi S, Wagner F, Reichenspurner H, Pecha S. Should Concomitant Surgical Ablation for Atrial Fibrillation Be Performed in Patients Aged Over 75 Years? Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Wagner F. The complex story of energy transition —an introduction. EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201818900002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Pecha S, Petersen J, Hakmi S, Wagner F, Reichenspurner H. Implantable Loop Recorder Monitoring following Concomitant Surgical AF Ablation. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Pecha S, Hakmi S, Petersen J, Wagner F, Willems S, Reichenspurner H. Do We Need to Open the Left Atrium for Surgical AF Ablation in Paroxysmal AF Concomitant to CABG or AVR? Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Wagner F, Peeters J, De Keyzer J, Duflou J, Dewulf W. Evaluation of the quality of postconsumer plastics obtained from disassembly-based recycling strategies. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24731] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Paech C, Dähnert I, Riede FT, Wagner R, Kister T, Nieschke K, Wagner F, Gebauer RA. QRS Width as a Predictor of Right Ventricular Remodeling After Percutaneous Pulmonary Valve Implantation. Pediatr Cardiol 2017. [PMID: 28631207 DOI: 10.1007/s00246-017-1658-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Recent data showed a right ventricular dyssynchrony in patients with tetralogy of Fallot (TOF). Percutaneous pulmonary valve implantation (PPVI) has become an important procedure to treat a pulmonary stenosis and/or regurgitation of the right ventricular outflow tract in these patients. Despite providing good results, there is still a considerable number of nonresponders to PPVI. The authors speculated that electrical dysfunction of the right ventricle plays an underestimated role in the outcome of patients after PPVI. This study aimed to investigate the influence of right ventricular electrical dysfunction, i.e., right bundle branch block (RBBB) on the RV remodeling after PPVI. The study included consecutive patients after correction of TOF with or without RBBB, who had received a PPVI previously at the Heart Center of the University of Leipzig, Germany during the period from 2012 to 2015. 24 patients were included. Patients without RBBB, i.e., with narrow QRS complexes pre-intervention, had significantly better RV function and had smaller right ventricular volumes. Patients with pre-interventionally QRS width below 150 ms showed a post-interventional remodeling of the right ventricle with the decreasing RV volumes (p = 0.001). The parameters of LV function and volume as well as RV ejection fraction remained unaffected by RBBB. The presented data indicate that the QRS width seems to be a valuable parameter in the prediction of right ventricular remodeling after PPVI, as it represents both electrical and mechanical functions of the right ventricle and may serve as an additional parameter for optimal timing of a PPVI.
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Bagnoud V, Hornung J, Schlegel T, Zielbauer B, Brabetz C, Roth M, Hilz P, Haug M, Schreiber J, Wagner F. Studying the Dynamics of Relativistic Laser-Plasma Interaction on Thin Foils by Means of Fourier-Transform Spectral Interferometry. PHYSICAL REVIEW LETTERS 2017; 118:255003. [PMID: 28696732 DOI: 10.1103/physrevlett.118.255003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Indexed: 06/07/2023]
Abstract
We apply Fourier-transform spectral interferometry (FTSI) to study the interaction of intense laser pulses with ultrathin targets. Ultrathin submicrometer-thick solid CH targets were shot at the PHELIX laser facility with an intensity in the mid to upper 10^{19} W/cm^{2} range using an innovative double-pulse structure. The transmitted pulse structure was analyzed by FTSI and shows a transition from a relativistic transparency-dominated regime for targets thinner than 500 nm to a hole-boring-dominated laser-plasma interaction for thicker targets. The results also confirm that the inevitable preplasma expansion happening during the rising slope of the pulse, a few picoseconds before the maximum of the pulse is reached, cannot be neglected and plays a dominant role in laser-plasma interaction with ultrathin solid targets.
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Roshal M, Reichel J, Wagner F, Zairis S, Sadek J, Brody J, Elemento O, Rabadan R, Dave S, Cesarman E. FULL TRANSCRIPTOME SEQUENCING OF SORTED HODGKIN AND REED-STERNBERG CELLS REVEALS PLASMACYTIC DIFFERENTIATION: INSIGHTS INTO MECHANISMS OF ONCOGENESIS AND IMMUNE EVASION. Hematol Oncol 2017. [DOI: 10.1002/hon.2437_93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Schanz VA, Wagner F, Roth M, Bagnoud V. Noise reduction in third order cross-correlation by angle optimization of the interacting beams. OPTICS EXPRESS 2017; 25:9252-9261. [PMID: 28438001 DOI: 10.1364/oe.25.009252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report on a novel technique to reduce the noise level in scanning third order cross-correlation. Large angles between the interacting beams combined with adapted crystal parameters lead to a significant decrease of noise photon generation while maintaining efficient generation of the third order signal. An enhanced scanning cross-correlator was developed based on the new technique proposed. In tests at the PHELIX laser facility this novel correlator performed within a dynamic range of 12.5 orders of magnitude.
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