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Haering P, Lang C, Splinter M. SU-E-T-773: Use of a Commercial TPS for Deriving Exit Dose Distribution for Patient Specific QA with An EPID. Med Phys 2015. [DOI: 10.1118/1.4925137] [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] Open
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77
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Lang C, Lee B. Heat Transfer Fluid Life Time Analysis of Diphenyl Oxide/Biphenyl Grades for Concentrated Solar Power Plants. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.egypro.2015.03.077] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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78
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Mann P, Witte M, Armbruster S, Runz A, Lang C, Breithaupt M, Berger M, Biederer J, Karger CP, Moser T. Feasibility of polymer gel dosimetry measurements in a dynamic porcine lung phantom. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/1742-6596/573/1/012079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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79
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Walter K, Ebert B, Lang C, Blank L. Metabolic Engineering von Saccharomyces cerevisiaefür die Produktion zyklischer Triterpenoide. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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80
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Thirolf PG, Aldawood S, Boehmer M, Bortfeldt J, Castelhano I, Gernhaeuser R, v.d. Kolff H, Lang C, Maier L, Schaart DR, Parodi K. SU-E-J-46: Development of a Compton Camera Prototype for Online Range Verification of Laser-Accelerated Proton Beams. Med Phys 2014. [DOI: 10.1118/1.4888098] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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81
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Grammenos D, Bein T, Briegel J, Eckardt KU, Gerresheim G, Lang C, Nieß C, Zeman F, Breidenbach T. [Attitudes of medical staff potentially participating in the organ donation process towards organ donation and transplantation in Bavaria]. Dtsch Med Wochenschr 2014; 139:1289-94. [PMID: 24863464 DOI: 10.1055/s-0034-1370107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Organ donation rates in Germany are lower than in other countries and have declined further after manipulations of the waiting lists in some German transplant centers became public. Attitudes and commitment of medical personnel are crucial for successful organ donation. Therefore, we studied the attitudes of hospital staff towards organ donation and transplantation. METHOD In 50 Bavarian hospitals, medical professionals working in units relevant to organ donation were asked to respond to an anonymous questionnaire. RESULTS 2983 questionnaires could be evaluated. The majority of all respondents had a positive attitude towards organ donation; 71 % were willing to donate their organs after brain death and 57 % were willing to accept a transplant in case of organ failure. Rates of positive attitude were lower among nurses than among physicians. 28 % indicated that recent developments had a negative impact on their attitude and of those approximately half evaluated the work of transplant centers negatively. Overall only 23 % considered organ allocation as fair. The majority of nurses and a large proportion of physicians considered themselves as not well informed. CONCLUSION The current loss of confidence into organ donation and transplantation also affects the attitude of medical personnel. Intensified measures of information and full transparency of all procedures are urgently needed.
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Thirolf P, Lang C, Aldawood S, v.d. Kolff H, Maier L, Schaart D, Parodi K. Development of a Compton Camera for Online Range Monitoring of Laser-Accelerated Proton Beams via Prompt-Gamma Detection. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146611036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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83
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Steffen L, Salathe Y, Oppliger M, Kurpiers P, Baur M, Lang C, Eichler C, Puebla-Hellmann G, Fedorov A, Wallraff A. Deterministic quantum teleportation with feed-forward in a solid state system. Nature 2013; 500:319-22. [PMID: 23955231 DOI: 10.1038/nature12422] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Accepted: 06/28/2013] [Indexed: 11/09/2022]
Abstract
Engineered macroscopic quantum systems based on superconducting electronic circuits are attractive for experimentally exploring diverse questions in quantum information science. At the current state of the art, quantum bits (qubits) are fabricated, initialized, controlled, read out and coupled to each other in simple circuits. This enables the realization of basic logic gates, the creation of complex entangled states and the demonstration of algorithms or error correction. Using different variants of low-noise parametric amplifiers, dispersive quantum non-demolition single-shot readout of single-qubit states with high fidelity has enabled continuous and discrete feedback control of single qubits. Here we realize full deterministic quantum teleportation with feed-forward in a chip-based superconducting circuit architecture. We use a set of two parametric amplifiers for both joint two-qubit and individual qubit single-shot readout, combined with flexible real-time digital electronics. Our device uses a crossed quantum bus technology that allows us to create complex networks with arbitrary connecting topology in a planar architecture. The deterministic teleportation process succeeds with order unit probability for any input state, as we prepare maximally entangled two-qubit states as a resource and distinguish all Bell states in a single two-qubit measurement with high efficiency and high fidelity. We teleport quantum states between two macroscopic systems separated by 6 mm at a rate of 10(4) s(-1), exceeding other reported implementations. The low transmission loss of superconducting waveguides is likely to enable the range of this and other schemes to be extended to significantly larger distances, enabling tests of non-locality and the realization of elements for quantum communication at microwave frequencies. The demonstrated feed-forward may also find application in error correction schemes.
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Thirolf P, Aldawood S, Lang C, Parodi K. SU-E-I-80: Development of a Compton Camera for Online Range Monitoring of Laser-Accelerated Proton Beams. Med Phys 2013. [DOI: 10.1118/1.4814191] [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] Open
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85
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Lang C, Schäfer AO, Langer M. Langzeitergebnisse der CT-gesteuerten Radiofrequenzablation von Nierentumoren. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346357] [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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86
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Eichler C, Lang C, Fink JM, Govenius J, Filipp S, Wallraff A. Observation of entanglement between itinerant microwave photons and a superconducting qubit. PHYSICAL REVIEW LETTERS 2012; 109:240501. [PMID: 23368292 DOI: 10.1103/physrevlett.109.240501] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Indexed: 05/23/2023]
Abstract
A localized qubit entangled with a propagating quantum field is well suited to study nonlocal aspects of quantum mechanics and may also provide a channel to communicate between spatially separated nodes in a quantum network. Here, we report the on-demand generation and characterization of Bell-type entangled states between a superconducting qubit and propagating microwave fields composed of zero-, one-, and two-photon Fock states. Using low noise linear amplification and efficient data acquisition we extract all relevant correlations between the qubit and the photon states and demonstrate entanglement with high fidelity.
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Lang C, Waugh DW, Olsen MA, Douglass AR, Liang Q, Nielsen JE, Oman LD, Pawson S, Stolarski RS. The impact of greenhouse gases on past changes in tropospheric ozone. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012jd018293] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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88
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Heckmann JG, Lang C, Glocker FX, Urban P, Bischoff C, Weder B, Reiter G, Meier U, Guntinas-Lichius O. [The new S2k AWMF guideline for the treatment of Bell's palsy in commented short form]. Laryngorhinootologie 2012; 91:686-92. [PMID: 22961063 DOI: 10.1055/s-0032-1323685] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A new S2k AWMF guideline for the treatment of idiopathic facial palsy has been published. An accurate differential diagnosis is indispensable as 25-40% of all facial palsy cases are of non-idiopathic origin. It is explicitly recommended to treat patients with idiopathic facial palsy with steroids. Steroids favour a complete recovery, decrease the risk of synkinesis, autonomic sequelae and contractures. Adjuvant antiviral therapy cannot be recommended. On current data there is not sufficient evidence that the combination of steroids with antiviral drugs has a benefit for the patients. Even when not supported by randomized trials, adjuvant symptomatic therapy to protect the cornea and to avoid complications is recommended. There is no scientific evidence that physical therapy has any benefit but it should be taken into account because of psychological reasons. A benefit of acupuncture has not been proven. If eye closure remains incomplete as result of defective healing, one therapeutic option is lid loading of the upper eye lid. Moreover, in case of severe persistent palsy, several well-established microsurgical nerve and muscle plasty procedures are available.
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Weydt P, Dietzel M, Lang C, Landwehrmeyer GB, Süssmuth SD. I09 Optical motion sensing device (kinect) to assess motor function in HD—a pilot study. Journal of Neurology, Neurosurgery and Psychiatry 2012. [DOI: 10.1136/jnnp-2012-303524.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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90
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Haering P, Lang C, Schwahofer A, Echner G. SU-E-T-124: A Modified Winston Lutz Test Enabling Beam to Laser Angle Measurements. Med Phys 2012; 39:3731. [DOI: 10.1118/1.4735182] [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] Open
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91
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Elder DHJ, Shearer F, Dawson A, Pradeep M, Parry H, Currie P, Pringle SD, George J, Choy A, Lang C. 012 Automated data capture from echocardiography reports to enhance heart failure population research. BRITISH HEART JOURNAL 2012. [DOI: 10.1136/heartjnl-2012-301877b.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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92
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Brunner M, Lang C, Valmaggia C. [Heavy tamponade in complicated inferior retinal detachment]. Klin Monbl Augenheilkd 2012; 229:407-10. [PMID: 22496014 DOI: 10.1055/s-0031-1299271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Retinal detachment with inferior proliferative vitreoretinopathy is a difficult to treat problem. The aim of our study was to assess the safety and efficacy of Densiron in the clinical management of complicated retinal detachment. HISTORY AND SIGNS 6 eyes of 6 consecutive patients presenting with a retinal detachment with inferior proliferative vitreoretinopathy grade 3 were treated with pars plana vitrectomy and injection of Densiron. The mean age of the patients was 61 years. 3 patients had a previous unsuccessful vitreoretinal surgery and 3 patients had Densiron as a first procedure. The extent of detachment was at least 2 or more quadrants with macular involvement in 3 cases. Preoperatively the mean visual acuity was 29.2 letters with ETDRS. THERAPY AND OUTCOME Densiron was removed after an average of 58 days. 5 patients achieved retinal re-attachment without further tamponade, and 1 patient after additional injection of conventional silicon oil. 4 - 6 weeks after removal of Densiron the mean visual acuity was 50.2 letters with ETDRS. The most common complication was an elevated intraocular pressure during endotamponade, which resolved following removal of the agent. CONCLUSIONS Densiron improves inferior tamponade, and in clinical practice may be considered to increase the anatomic success rate in selected cases of complicated retinal detachment with inferior proliferative vitreoretinopathy.
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Lang C, Habs D, Thirolf P, Zoglauer A. 82 SUBMILLIMETER NUCLEAR MEDICAL IMAGING WITH A COMPTON CAMERA USING TRIPLE COINCIDENCES OF COLLINEAR BETA+− ANNIHILATION PHOTONS AND GAMMA RAYS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70059-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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94
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Lang C, Reiss C, Mäurer M. Natalizumab May Improve Cognition and Mood in Multiple Sclerosis. Eur Neurol 2012; 67:162-6. [DOI: 10.1159/000334722] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 10/23/2011] [Indexed: 11/19/2022]
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95
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Lang C, Waldfahrer F, Iro H. [Vertigo in emergency medicine]. Laryngorhinootologie 2011; 90:622-35; quiz 636. [PMID: 22016260 DOI: 10.1055/s-0031-1291256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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96
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97
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Eichler C, Bozyigit D, Lang C, Baur M, Steffen L, Fink JM, Filipp S, Wallraff A. Observation of two-mode squeezing in the microwave frequency domain. PHYSICAL REVIEW LETTERS 2011; 107:113601. [PMID: 22026665 DOI: 10.1103/physrevlett.107.113601] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 06/08/2011] [Indexed: 05/31/2023]
Abstract
Continuous variable entanglement between two modes of a radiation field is usually studied at optical frequencies. Here we demonstrate experiments that show the entanglement between microwave photons of different energy in a broadband squeezed beam. We use a Josephson parametric amplifier to generate the two-mode correlated state and detect all four quadrature components simultaneously in a two-channel heterodyne setup using amplitude detectors. Analyzing two-dimensional phase space histograms for all possible pairs of quadratures allows us to determine the full covariance matrix, which is in good agreement with the one expected for a two-mode squeezed state.
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Lang C, Eichel R, Bulushi Y, Gib R, Alloussi S. MP-05.08 Preservation of Ejaculation in Monopolar TUR and Laser Vaporesection of Prostate in the Treatment of Bladder Outlet Obstruction. Urology 2011. [DOI: 10.1016/j.urology.2011.07.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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99
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Lange-Asschenfeldt B, Marenbach D, Lang C, Patzelt A, Ulrich M, Maltusch A, Terhorst D, Stockfleth E, Sterry W, Lademann J. Distribution of bacteria in the epidermal layers and hair follicles of the human skin. Skin Pharmacol Physiol 2011; 24:305-11. [PMID: 21757977 DOI: 10.1159/000328728] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Accepted: 03/31/2011] [Indexed: 11/19/2022]
Abstract
Previous studies over recent years have revealed the presence of a resident bacterial population in the human skin throughout the entire body. However, the localization and composition of the bacteria within the epidermis and the skin appendages have not been fully investigated. Using differential tape stripping, cyanoacrylate skin surface biopsies and mapping of hair follicles, bacteria on the forearms of study participants were isolated, mapped, cultured and identified with respect to their origin within the epidermis and the hair follicles. Our studies showed that 85% of the bacteria were found within the first 6 corneocyte layers and roughly 25% of the cutaneous bacterial population were localized within the hair follicles. The microbial flora of the skin between individuals is subject to considerable fluctuations. Micrococcaceae represent the biggest fraction of hair-follicle-associated bacteria. The techniques developed for this study allowed us to selectively investigate the bacterial population within the hair follicles. Our results point out the role of skin appendages as potential microbial reservoirs and the need to develop new antiseptic formulations that sufficiently penetrate into the hair follicles.
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Lang C, Bozyigit D, Eichler C, Steffen L, Fink JM, Abdumalikov AA, Baur M, Filipp S, da Silva MP, Blais A, Wallraff A. Observation of resonant photon blockade at microwave frequencies using correlation function measurements. PHYSICAL REVIEW LETTERS 2011; 106:243601. [PMID: 21770569 DOI: 10.1103/physrevlett.106.243601] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Indexed: 05/31/2023]
Abstract
Creating a train of single photons and monitoring its propagation and interaction is challenging in most physical systems, as photons generally interact very weakly with other systems. However, when confining microwave frequency photons in a transmission line resonator, effective photon-photon interactions can be mediated by qubits embedded in the resonator. Here, we observe the phenomenon of photon blockade through second-order correlation function measurements. The experiments clearly demonstrate antibunching in a continuously pumped source of single microwave photons measured by using microwave beam splitters, linear amplifiers, and quadrature amplitude detectors. We also investigate resonance fluorescence and Rayleigh scattering in Mollow-triplet-like spectra.
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