Search Results - "Graf, U."

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  1. 1

    The German guideline “Obesity in pregnancy”: comparison with the international approach by Schmidt, Markus, Schaefer-Graf, U. M.

    Published in Archives of gynecology and obstetrics (01-05-2024)
    “…Background Obesity is an increasing problem, even in young women of reproductive age. Obesity has a negative impact on conception, the course of pregnancy, and…”
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    Journal Article
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    Astrophysical detection of the helium hydride ion HeH by Güsten, Rolf, Wiesemeyer, Helmut, Neufeld, David, Menten, Karl M., Graf, Urs U., Jacobs, Karl, Klein, Bernd, Ricken, Oliver, Risacher, Christophe, Stutzki, Jürgen

    Published in Nature (London) (18-04-2019)
    “…During the dawn of chemistry 1 , 2 , when the temperature of the young Universe had fallen below some 4,000 kelvin, the ions of the light elements produced in…”
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    Differences in the implications of maternal lipids on fetal metabolism and growth between gestational diabetes mellitus and control pregnancies by Schaefer-Graf, U. M., Meitzner, K., Ortega-Senovilla, H., Graf, K., Vetter, K., Abou-Dakn, M., Herrera, E.

    Published in Diabetic medicine (01-09-2011)
    “…Diabet. Med. 28, 1053–1059 (2011) Aims  To evaluate the potential contribution of maternal glucose and lipids to fetal metabolic variables and growth in…”
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  4. 4

    Unveiling the Formation of the Massive DR21 Ridge by Bonne, L., Bontemps, S., Schneider, N., Simon, R., Clarke, S. D., Csengeri, T., Chambers, E., Graf, U., Jackson, J. M., Klein, R., Okada, Y., Tielens, A. G. G. M., Tiwari, M.

    Published in The Astrophysical journal (01-07-2023)
    “…Abstract We present new 13 CO (1−0), C 18 O (1−0), HCO + (1−0), and H 13 CO + (1−0) maps from the IRAM 30 m telescope and a spectrally resolved [C ii ] 158 μ m…”
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    Direct detection of atomic oxygen on the dayside and nightside of Venus by Hübers, Heinz-Wilhelm, Richter, Heiko, Graf, Urs U., Güsten, Rolf, Klein, Bernd, Stutzki, Jürgen, Wiesemeyer, Helmut

    Published in Nature communications (07-11-2023)
    “…Atomic oxygen is a key species in the mesosphere and thermosphere of Venus. It peaks in the transition region between the two dominant atmospheric circulation…”
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    Phase locking of a 1.5 Terahertz quantum cascade laser and use as a local oscillator in a heterodyne HEB receiver by Rabanus, D, Graf, U U, Philipp, M, Ricken, O, Stutzki, J, Vowinkel, B, Wiedner, M C, Walther, C, Fischer, M, Faist, J

    Published in Optics express (02-02-2009)
    “…We demonstrate for the first time the closure of an electronic phase lock loop for a continuous-wave quantum cascade laser (QCL) at 1.5 THz. The QCL is…”
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    Material and solar cell research in microcrystalline silicon by Shah, A.V, Meier, J, Vallat-Sauvain, E, Wyrsch, N, Kroll, U, Droz, C, Graf, U

    Published in Solar energy materials and solar cells (01-07-2003)
    “…This contribution describes the introduction of hydrogenated microcrystalline silicon (μc-Si:H) as novel absorber material for thin-film silicon solar cells…”
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    Journal Article
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    Disruption of the Orion molecular core 1 by wind from the massive star θ1 Orionis C by Pabst, C., Higgins, R., Goicoechea, J. R., Teyssier, D., Berne, O., Chambers, E., Wolfire, M., Suri, S. T., Guesten, R., Stutzki, J., Graf, U. U., Risacher, C., Tielens, A. G. G. M.

    Published in Nature (London) (01-01-2019)
    “…Massive stars inject mechanical and radiative energy into the surrounding environment, which stirs it up, heats the gas, produces cloud and intercloud phases…”
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    Pregnancy and Infants' Outcome: Nutritional and Metabolic Implications by Berti, C., Cetin, I., Agostoni, C., Desoye, G., Devlieger, R., Emmett, P. M., Ensenauer, R., Hauner, H., Herrera, E., Hoesli, I., Krauss-Etschmann, S., Olsen, S. F., Schaefer-Graf, U., Schiessl, B., Symonds, M. E., Koletzko, B.

    “…Pregnancy is a complex period of human growth, development, and imprinting. Nutrition and metabolism play a crucial role for the health and well-being of both…”
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    Intense few-cycle light pulses in the deep ultraviolet by Graf, U, Fiess, M, Schultze, M, Kienberger, R, Krausz, F, Goulielmakis, E

    Published in Optics express (10-11-2008)
    “…We demonstrate that nonlinear frequency upconversion of few-cycle near-infrared (NIR) laser pulses, by means of harmonic generation in noble gases, is a…”
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    High performance 4.7 THz GaAs quantum cascade lasers based on four quantum wells by Ohtani, Keita, Tur inková, Dana, Bonzon, Christopher, Benea-Chelmus, Ileana-Cristina, Beck, Mattias, Faist, Jérôme, Justen, Matthias, Graf, Urs U, Mertens, Marc, Stutzki, Jürgen

    Published in New journal of physics (02-12-2016)
    “…GaAs/AlGaAs quantum cascade lasers based on four quantum well structures operating at 4.7 THz are reported. A large current density dynamic range is observed,…”
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    Enhanced diffraction efficiency of two-dimensional phase gratings by Graf, Urs U

    Published in Optics express (10-12-2018)
    “…Phase gratings are used as beam multiplexers in the submillimeter and Terahertz spectral range. Two-dimensional beam arrangements can often be obtained most…”
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    Route to attosecond nonlinear spectroscopy by Reiter, F, Graf, U, Serebryannikov, E E, Schweinberger, W, Fiess, M, Schultze, M, Azzeer, A M, Kienberger, R, Krausz, F, Zheltikov, A M, Goulielmakis, E

    Published in Physical review letters (10-12-2010)
    “…We demonstrate generation of coherent microjoule-scale, low-order harmonic supercontinua in the deep and vacuum ultraviolet (4-9 eV), resulting from the…”
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    High rate growth of microcrystalline silicon by VHF-GD at high pressure by Graf, U., Meier, J., Kroll, U., Bailat, J., Droz, C., Vallat-Sauvain, E., Shah, A.

    Published in Thin solid films (03-03-2003)
    “…Microcrystalline silicon growth using very high frequency-glow discharge PECVD has been studied under conditions of high pressure and high VHF-power…”
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    Journal Article Conference Proceeding
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    Amorphous solar cells, the micromorph concept and the role of VHF-GD deposition technique by Meier, J., Kroll, U., Vallat-Sauvain, E., Spitznagel, J., Graf, U., Shah, A.

    Published in Solar energy (01-01-2004)
    “…During the last two decades, the Institute of Microtechnology (IMT) has contributed in two important fields to future thin-film silicon solar cell processing…”
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    Microcrystalline silicon and ‘micromorph’ tandem solar cells by Shah, Arvind, Meier, J., Vallat-Sauvain, E., Droz, C., Kroll, U., Wyrsch, N., Guillet, J., Graf, U.

    Published in Thin solid films (01-02-2002)
    “…The case for thin-film silicon as one of the main future options for cost-effective photovoltaic solar cells is outlined. The limitations of present amorphous…”
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