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343 results on '"Schwaab G"'

1. Highly Altered State of Proton Transport in Acid Pools in Charged Reverse Micelles

Author

Hao, H., Adams, E., Funke, S., Schwaab, G., Havenith, M., Head-Gordon, T., Hao, H., Adams, E., Funke, S., Schwaab, G., Havenith, M., and Head-Gordon, T.

Abstract

Transport mechanisms of solvated protons of 1 M HCl acid pools, confined within reverse micelles (RMs) containing the negatively charged surfactant sodium bis(2-ethylhexyl) sulfosuccinate (NaAOT) or the positively charged cetyltrimethylammonium bromide (CTABr), are analyzed with reactive force field simulations to interpret dynamical signatures from TeraHertz absorption and dielectric relaxation spectroscopy. We find that the forward proton hopping events for NaAOT are further suppressed compared to a nonionic RM, while the Grotthuss mechanism ceases altogether for CTABr. We attribute the sluggish proton dynamics for both charged RMs as due to headgroup and counterion charges that expel hydronium and chloride ions from the interface and into the bulk interior, thereby increasing the pH of the acid pools relative to the nonionic RM. For charged NaAOT and CTABr RMs, the localization of hydronium near a counterion or conjugate base reduces the Eigen and Zundel configurations that enable forward hopping. Thus, localized oscillatory hopping dominates, an effect that is most extreme for CTABr in which the proton residence time increases dramatically such that even oscillatory hopping is slow.

Published
2023

4. Stripping off of the Hydration Shells in the Double Layer Formation: Water Networks Matter

Author

Alfarano, Serena Rosa, primary, Pezzotti, Simone, primary, Stein, Christopher, primary, Lin, Zhou, primary, sebastiani, federico, primary, Funke, Sarah, primary, Mauelshagen, Katja, primary, Hoberg, Claudius, primary, kolling, Inga, primary, Ma, Chun Yu, primary, Ockelmann, T, primary, Schwaab, G., primary, Fu, Li, primary, brubach, JB, primary, pascale, roy, primary, Head-Gordon, Martin, primary, Gaigeot, Marie-Pierre, primary, Tschulik, Kristina, primary, and havenith, martina, primary

Published
2021
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9. Heterodyne measurements of a NbN superconducting hot electron mixer at terahertz frequencies

Author

Yagoubovv, P., Kroug, M., Merkel, H., Kollberg, E., Schubert, J., Hubers, H.-W., Schwaab, g., Gol'tsman, G., and Gershenzon, E.

Subjects
Mixers (Electronics) -- Research, Radio receivers -- Research, Superconductors -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Research was conducted to investigate the performance of a NbN based phonon-cooled Hot Electron Bolometric quasioptical mixer in the 0.65-3.12 THz frequency range. The mixer was built from a 3 nm thick NbN film on high resistivity Si and integrated with a planar spiral antenna on the same substrate. The receiver has shown low-noise performance, very broad radio frequency bandwidth and a large dynamic range.

Published
1999

14. Far-infrared self-broadening in methylcyanide - Absorber-perturber resonance

Author

Buffa, G, Tarrini, O, De Natale, P, Inguscio, M, Pavone, F. S, Prevedelli, M, Evenson, K. M, Zink, L. R, and Schwaab, G. W

Subjects
Atomic And Molecular Physics
Abstract

Using tunable far-infrared spectrometers with high-frequency stability and accuracy, the self-pressure broadening and shift of CH3CN are measured. Evidence of absorber-perturber resonance effects on the collisional line shape are obtained. This tests the theoretical model and its possible improvements and also allows predictions of broadening and shift for a large class of molecules. Moreover, the resonance effect produces a theoretical temperature dependence of self-broadening that is different from what is commonly assumed.

Published
1992
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19. First Results of a Randomized Trial on Immunotherapy of Head and Neck Tumors

Author

Amiel, J. L., Sancho-Garnier, H., Vandenbrouck, C., Eschwege, F., Droz, J. P., Schwaab, G., Wibault, P., Stromboni, M., Rey, A., Allfrey, V. G., editor, Allgöwer, M., editor, Berenblum, I., editor, Bergel, F., editor, Bernard, J., editor, Bernhard, W., editor, Blokhin, N. N., editor, Bock, H. E., editor, Braun, W., editor, Bucalossi, P., editor, Chaklin, A. V., editor, Chorazy, M., editor, Cunningham, G. J., editor, Porta, G. Della, editor, Denoix, P., editor, Dulbecco, R., editor, Eagle, H., editor, Eker, R., editor, Good, R. A., editor, Grabar, P., editor, Harris, R. J. C., editor, Hecker, E., editor, Herbeuval, R., editor, Higginson, J., editor, Hueper, W. C., editor, Isliker, H., editor, Kieler, J., editor, Kirsten, W. H., editor, Klein, G., editor, Koprowski, H., editor, Koss, L. G., editor, Martz, G., editor, Mathé, G., editor, Mühlbock, O., editor, Nakahara, W., editor, Old, L. J., editor, Potter, V. R., editor, Sabin, A. B., editor, Sachs, L., editor, Saxén, E. A., editor, Schmidt, C. G., editor, Spiegelman, S., editor, Szybalski, W., editor, Tagnon, H., editor, Taylor, R. M., editor, Tissières, A., editor, Uehlinger, E., editor, Wissler, R. W., editor, Rentchnick, P., editor, Bonadonna, Gianni, editor, Mathé, Georges, editor, and Salmon, Sydney E., editor

Published
1979
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20. Invasion of the Upper Respiratory and Digestive Tract in Adult Lymphoid Neoplasias

Author

Brugere, J., Dumont, J., Jaulerry, C., Schwaab, G., Allfrey, V. G., editor, Allgöwer, M., editor, Bauer, K. H., editor, Berenblum, I., editor, Bergel, F., editor, Bernard, J., editor, Bernhard, W., editor, Blokhin, N. N., editor, Bock, H. E., editor, Braun, W., editor, Bucalossi, P., editor, Chaklin, A. V., editor, Chorazy, M., editor, Cunningham, G. J., editor, Porta, G. Della, editor, Denoix, P., editor, Dulbecco, R., editor, Eagle, H., editor, Eker, R., editor, Good, R. A., editor, Grabar, P., editor, Harris, R. J. C., editor, Hecker, E., editor, Herbeuval, R., editor, Higginson, J., editor, Hueper, W. C., editor, Isliker, H., editor, Kieler, J., editor, Kirsten, W. H., editor, Klein, G., editor, Koprowski, H., editor, Koss, L. G., editor, Martz, G., editor, Mathé, G., editor, Mühlbock, O., editor, Nakahara, W., editor, Old, L. J., editor, Potter, V. R., editor, Sabin, A. B., editor, Sachs, L., editor, Saxén, E. A., editor, Schmidt, C. G., editor, Spiegelman, S., editor, Szybalski, W., editor, Tagnon, H., editor, Taylor, R. M., editor, Tissières, A., editor, Uehlinger, E., editor, Wissler, R. W., editor, Rentchnick, P., editor, Mathé, Georges, editor, Seligmann, Maxime, editor, and Tubiana, Maurice, editor

Published
1978
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21. Video detection and mixing performance of GaAs Schottky-barrier diodes at 30 THz and comparison with metal-insulator-metal diodes.

Author

Hübers, H.-W., Schwaab, G. W., and Röser, H. P.

Subjects
*GALLIUM arsenide, *SCHOTTKY barrier diodes, *DETECTORS
Abstract

Focuses on a study which performed video detection and mixing experiments with gallium arsenide Schottky-barrier diodes and tungsten-nickel metal-insulator-metal diodes. Difference between the diodes in terms of sensitivity; Measurement of the dependence of the mixing signal on different diode parameters and bias current; Comparison of efficiency; Role of thermionic emission in video detection and mixing.

Published
1994

22. Current-frequency characteristics of submicrometer GaAs Schottky barrier diodes with femtofarad capacitance.

Author

Roeser, H. P., Titz, R. U., Schwaab, G. W., and Kimmitt, M. F.

Subjects
DIODES, HETERODYNE reception, GALLIUM arsenide
Abstract

Investigates different Schottky barrier diodes with submicrometer structure and femtofarad capacitance in a heterodyne receiver. Use of the diodes; Data on the geometrical and electrical parameters of the gallium arsenide Schottky barrier diodes.

Published
1992
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25. Meta-analysis of chemotherapy in head and neck cancer (MACH-NC): an update on 93 randomised trials and 17,346 patients

Author

Pignon, Jean-Pierre, le Maître, Aurélie, Maillard, Emilie, Bourhis, Jean, Amand, C, Armand, JP, Luboinski, B, Lefebvre, JL, Syz, N, Bernier, J, Budach, V, Forastiere, AA, Stewart, AA, Vokes, EE, Adelstein, DJ, Audry, H, Bachaud, JM, Bartelink, HG, Bezwoda, WR, Buffoli, A, Bhowmik, KT, Browman, GP, Calais, G, Campbell, BH, Carugati, A, Chalkidou, S, Clark, JR, Cohen, E, Collette, L, Dal Canton, O, Dalley, D, Despondt, J, Désigné, L, Deszcz-Thomas, A, Di Blasio, B, Dobrowsky, W, Domenge, C, Eschwege, F, Evensen, JF, Fallai, C, Fischer, JJ, Forastière, AA, Fountzilas, G, Fu, KK, Gedouin, D, Guérin, S, Geara, F, Giglio, R, Gupta, NK, Haddad, E, Haffy, BG, Hasegawa, Y, Hill, C, Horiot, JC, Horiuchi, M, Houghton, J, Huguenin, P, Jan, P, Jaulerry, Ch, Jeremic, B, Jouffroy, T, Jortay, A, Kapstad, B, Kowalski, LP, Kramer, S, Krishnamurthi, KS, Kumar, S, Laramore, G, Lartigau, E, Leong, T, Lewin, F, Luboinski, M, Maipang, T, Martin, M, Mazeron, JJ, Merlano, M, Metha, S, Molinari, R, Monson, K, Morita, K, Mueller, RP, Murias, A, Mosseri, V, Numico, G, Olmi, P, O'Sullivan, B, Overgaard, Jens, Paccagnella, A, Pajak, T, Parvinen, LM, Pearlman, NW, Rao, RS, Richard, JM, Rufibach, K, Sanchiz, F, Sancho-Garnier, H, Schuller, DE, Shanta, V, Simes, RJ, Smid, L, Stewart, LA, Staar, S, Strojan, P, Stuetzer, H, Szpirglas, H, Schwaab, G, Takaku, S, Taylor, SG, Tobias, JS, Toohill, RJ, Volling, P, Weissler, MC, Wendt, T, Wernecke, KD, Widder, J, Wolf, GT, and Guided Treatment in Optimal Selected Cancer Patients (GUTS)

Subjects
Oncology, medicine.medical_specialty, medicine.medical_treatment, Antineoplastic Agents, Meta-Analysis as Topic, Internal medicine, medicine, Humans, Radiology, Nuclear Medicine and imaging, Randomized Controlled Trials as Topic, Chemotherapy, business.industry, Carcinoma, Hazard ratio, Head and neck cancer, Induction chemotherapy, Hematology, medicine.disease, Head and neck squamous-cell carcinoma, Combined Modality Therapy, Radiation therapy, DAHANCA, Treatment Outcome, Squamous Cell, Head and Neck Neoplasms, Concomitant, Carcinoma, Squamous Cell, business
Abstract

BACKGROUND: Our previous individual patient data (IPD) meta-analysis showed that chemotherapy improved survival in patients curatively treated for non-metastatic head and neck squamous cell carcinoma (HNSCC), with a higher benefit with concomitant chemotherapy. However the heterogeneity of the results limited the conclusions and prompted us to confirm the results on a more complete database by adding the randomised trials conducted between 1994 and 2000.METHODS: The updated IPD meta-analysis included trials comparing loco-regional treatment to loco-regional treatment+chemotherapy in HNSCC patients and conducted between 1965 and 2000. The log-rank-test, stratified by trial, was used to compare treatments. The hazard ratios of death were calculated.RESULTS: Twenty-four new trials, most of them of concomitant chemotherapy, were included with a total of 87 trials and 16,485 patients. The hazard ratio of death was 0.88 (pCONCLUSION: The benefit of concomitant chemotherapy was confirmed and was greater than the benefit of induction chemotherapy.

Published
2009

35. A 2-6 THz Heterodyne Receiver Array for SOFIA

Author

Schwaab, G. W., Bründermann, E., Hübers, H.-W., Krabbe, A., Röser, H. P., Sirmain, G., Titz, R., and Nitsche, R.

Subjects
terahertz, airborne astronomy, heterodyne spectroscopy, far-infrared, SOFIA
Published
1998

46. Nasopharynx carcinoma

Author

Armand, J.P., primary, Faivre, S., additional, Hasbini, A., additional, Busson, P., additional, Bosq, J., additional, Cvitkovic, E., additional, Eschwège, F., additional, and Schwaab, G., additional

Published
2001
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