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440 results on '"Trojan, L."'

4. A Radio Determination of the Time of the New Moon

Author

Hafez, Y. A., Trojan, L., Albaqami, F. H., Almutairi, A. Z., Davies, R. D., Dickinson, C., and Piccirillo, L.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics
Abstract

The detection of the New Moon at sunset is of importance to communities based on the lunar calendar. This is traditionally undertaken with visual observations. We propose a radio method which allows a higher visibility of the Moon relative to the Sun and consequently gives us the ability to detect the Moon much closer to the Sun than is the case of visual observation. We first compare the relative brightness of the Moon and Sun over a range of possible frequencies and find the range 5--100\,GHz to be suitable. The next consideration is the atmospheric absorption/emission due to water vapour and oxygen as a function of frequency. This is particularly important since the relevant observations are near the horizon. We show that a frequency of $\sim 10$ GHz is optimal for this programme. We have designed and constructed a telescope with a FWHM resolution of 0$^\circ{}\!\!$.6 and low sidelobes to demonstrate the potential of this approach. At the time of the 21 May 2012 New Moon the Sun/Moon brightness temperature ratio was $72.7 \pm 2.2$ in agreement with predictions from the literature when combined with the observed sunspot numbers for the day. The Moon would have been readily detectable at $\sim 2^{\circ}$ from the Sun. Our observations at 16\,hr\,36\,min UT indicated that the Moon would have been at closest approach to the Sun 16\,hr\,25\,min earlier; this was the annular solar eclipse of 00\,hr\,00\,min\,UT on 21 May 2012., Comment: 11 pages, 15 figures, accepted for publication in MNRAS

Published
2013
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5. Resistance to darolutamide in vitro correlates with global levels and occupancy patterns of histone modifications H3K27me3 and H3K27ac, depends on its regulator protein EZH2, and is at least partially mediated by Hedgehog signaling

Author

Schmidt, P., primary, Podehl, M., additional, Wegwitz, F., additional, Okutoyi, S., additional, Bertlich, M., additional, Kalogirou, C., additional, Kübler, H., additional, Trojan, L., additional, and Hahn, O., additional

Published
2023
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15. Prediction of outcome in patients with urothelial carcinoma of the bladder following radical cystectomy using artificial neural networks

Author

Buchner, A., May, M., Burger, M., Bolenz, C., Herrmann, E., Fritsche, H.-M., Ellinger, J., Höfner, T., Nuhn, P., Gratzke, C., Brookman-May, S., Melchior, S., Peter, J., Moritz, R., Tilki, D., Gilfrich, C., Roigas, J., Zacharias, M., Hohenfellner, M., Haferkamp, A., Trojan, L., Wieland, W.F., Müller, S.C., Stief, C.G., and Bastian, P.J.

Published
2013
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16. External validation of disease-free survival at 2 or 3 years as a surrogate and new primary endpoint for patients undergoing radical cystectomy for urothelial carcinoma of the bladder

Author

Nuhn, P., May, M., Fritsche, H.-M., Buchner, A., Brookman-May, S., Bolenz, C., Moritz, R., Herrmann, E., Burger, M., Höfner, T., Ellinger, J., Tilki, D., Roigas, J., Zacharias, M., Trojan, L., Wülfing, C., May, F., Melchior, S., Haferkamp, A., Gilfrich, C., Hohenfellner, M., Wieland, W.F., Müller, S.C., Stief, C.G., and Bastian, P.J.

Published
2012
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17. Clinical and pathological nodal staging score for urothelial carcinoma of the bladder: an external validation

Author

Gierth, M., Fritsche, H. M., Buchner, H., May, M., Aziz, A., Otto, W., Bolenz, C., Trojan, L., Hermann, E., Tiemann, A., Müller, S. C., Ellinger, J., Brookman-May, S., Stief, C. G., Tilki, D., Nuhn, P., Höfner, T., Hohenfellner, M., Haferkamp, A., Roigas, J., Zacharias, M., Wieland, W. F., Riedmiller, H., Denzinger, S., Bastian, P. J., and Burger, M.

Published
2014
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20. PDCD1 methylation predicts response to anti–PD-1 based immunotherapy in advanced and metastatic renal cell carcinoma

Author

Klümper, N., primary, Ralser, D.J., additional, Zarbl, R., additional, Schlack, K., additional, Schrader, A.J., additional, Rehlinghaus, M., additional, Hoffmann, M.J., additional, Niegisch, G., additional, Uhlig, A., additional, Trojan, L., additional, Steinestel, J., additional, Steinestel, K., additional, Wirtz, R.M., additional, Kristiansen, G., additional, Toma, M., additional, Hölzel, M., additional, Ritter, M., additional, Strieth, S., additional, Ellinger, J., additional, and Dietrich, D., additional

Published
2021
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23. Einfluss des Alters auf das karzinomspezifische Überleben nach radikaler Zystektomie: Überlebensanalyse aus einer deutschen Multicenterstudie nach kurativer Therapie eines Urothelkarzinoms der Harnblase

Author

May, M., Fritsche, H.-M., Gilfrich, C., Brookman-May, S., Burger, M., Otto, W., Bolenz, C., Trojan, L., Herrmann, E., Michel, M.S., Wülfing, C., Tiemann, A., Müller, S.C., Ellinger, J., Buchner, A., Stief, C.G., Tilki, D., Wieland, W.F., Höfner, T., Hohenfellner, M., Haferkamp, A., Roigas, J., Müller, O., Bretschneider-Ehrenberg, P., Zacharias, M., Gunia, S., and Bastian, P.J.

Published
2011
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24. Validierung von Präzystektomienomogrammen zur Vorhersage lokal fortgeschrittener Harnblasenkarzinome in einer multizentrischen Studie: Können wir lokal fortgeschrittene Tumorstadien präoperativ ausreichend sicher vorhersagen?

Author

May, M., Burger, M., Brookman-May, S., Otto, W., Peter, J., Rud, O., Fritsche, H.-M., Bolenz, C., Trojan, L., Herrmann, E., Michel, M.S., Wülfing, C., Moritz, R., Tiemann, A., Müller, S.C., Ellinger, J., Buchner, A., Stief, C.G., Tilki, D., Wieland, W.F., Gilfrich, C., Höfner, T., Hohenfellner, M., Haferkamp, A., Roigas, J., Bretschneider-Ehrenberg, P., Müller, O., Zacharias, M., Gunia, S., and Bastian, P.J.

Published
2011
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25. Harnblasenkarzinompatienten im klinischen Tumorstadium T2: Überlebensvorteil eines Downstaging gegenüber Patienten mit bestätigter Muskelinvasion im Zystektomiepräparat

Author

May, M., Fritsche, H.-M., Brookman-May, S., Burger, M., Bolenz, C., Trojan, L., Herrmann, E., Michel, M.S., Wülfing, C., Tiemann, A., Müller, S.C., Ellinger, J., Buchner, A., Stief, C.G., Tilki, D., Wieland, W.F., Gilfrich, C., Höfner, T., Hohenfellner, M., Haferkamp, A., Roigas, J., Zacharias, M., Gunia, S., and Bastian, P.J.

Published
2010
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