Search

Your search keyword '"Dietz, F."' showing total 528 results
Start Over Author "Dietz, F."
528 results on '"Dietz, F."'

1. New data on $\vec{\gamma} \vec{p}\rightarrow \eta p$ with polarized photons and protons and their implications for $N^* \to N\eta$ decays

Author

Müller, J., Hartmann, J., Grüner, M., Afzal, F., Anisovich, A. V., Bantes, B., Bayadilov, D., Beck, R., Becker, M., Beloglazov, Y., Berlin, M., Bichow, M., Böse, S., Brinkmann, K. -T., Challand, T., Crede, V., Dietz, F., Dieterle, M., Drexler, P., Dutz, H., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, S., Frommberger, F., Funke, C., Gottschall, M., Gridnev, A., Goertz, S., Gutz, E., Hammann, C., Hannen, V., Hannappel, J., Herick, J., Hillert, W., Hoffmeister, P., Honisch, C., Jahn, O., Jude, T., Jaegle, I., Käser, A., Kaiser, D., Kalinowsky, H., Kalischewski, F., Kammer, S., Keshelashvili, I., Klassen, P., Kleber, V., Klein, F., Klempt, E., Koop, K., Krusche, B., Kube, M., Lang, M., Lopatin, I., Maghrbi, Y., Mahlberg, P., Makonyi, K., Messi, F., Metag, V., Meyer, W., Müllers, J., Nanova, M., Nikonov, V., Novinski, D., Novotny, R., Piontek, D., Reicherz, G., Rosenbaum, C., Rostomyan, T., Roth, B., Sarantsev, A., Schmidt, C., Schmieden, H., Schmitz, R., Seifen, T., Sokhoyan, V., Thiel, A., Thoma, U., Urban, M., van Pee, H., Walther, D., Wendel, C., Wiedner, U., Wilson, A., Winnebeck, A., Witthauer, L., and Collaboration, CBELSA/TAPS

Subjects
Nuclear Experiment
Abstract

The polarization observables $T, E, P, H$, and $G$ in photoproduction of $\eta$ mesons off protons are measured for photon energies from threshold to $W=2400\,$MeV ($T$), 2280 MeV ($E$), 1620 MeV ($P, H$), or 1820 MeV ($G$), covering nearly the full solid angle. The data are compared to predictions from the SAID, MAID, J\"uBo, and BnGa partial-wave analyses. A refit within the BnGa approach including further data yields precise branching ratios for the $N\eta$ decay of nucleon resonances. A $N\eta$-branching ratio of $0.33\pm 0.04$ for $N(1650)1/2^-$ is found, which reduces the large and controversially discussed $N\eta$-branching ratio difference of the two lowest mass $J^P=1/2^-$-resonances significantly., Comment: 10 pages, 11 figures

Published
2019
Full Text
View/download PDF

2. Measurement of the Helicity Asymmetry $E$ for the reaction $ \gamma p\to \pi^0 p$

Author

collaboration, CBELSA/TAPS, Gottschall, M., Afzal, F., Anisovich, A. V., Bayadilov, D., Beck, R., Bichow, M., Brinkmann, K. -Th., Crede, V., Dieterle, M., Dietz, F., Dutz, H., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, St., Frommberger, F., Gridnev, A., Grüner, M., Gutz, E., Hammann, Ch., Hannappel, J., Hartmann, J., Hillert, W., Hoffmeister, Ph., Honisch, Ch., Jude, T., Kammer, S., Kalinowsky, H., Keshelashvili, I., Klassen, P., Klein, F., Klempt, E., Koop, K., Krusche, B., Kube, M., Lang, M., Lopatin, I., Mahlberg, P., Makonyi, K., Metag, V., Meyer, W., Müller, J., Müllers, J., Nanova, M., Nikonov, V., Novotny, R., Piontek, D., Reicherz, G., Rostomyan, T., Sarantsev, A., Schmidt, Ch., Schmieden, H., Seifen, T., Sokhoyan, V., Spieker, K., Thiel, A., Thoma, U., Urban, M., van Pee, H., Walther, D., Wendel, Ch., Werthmüller, D., Wiedner, U., Wilson, A., Winnebeck, A., Witthauer, L., and Wunderlich, Y.

Subjects
Nuclear Experiment
Abstract

A measurement of the double-polarization observable $E$ for the reaction $\gamma p\to \pi^0 p$ is reported. The data were taken with the CBELSA/TAPS experiment at the ELSA facility in Bonn using the Bonn frozen-spin butanol (C$_4$H$_9$OH) target, which provided longitudinally-polarized protons. Circularly-polarized photons were produced via bremsstrahlung of longitudinally-polarized electrons. The data cover the photon energy range from $E_\gamma =600$~MeV to $E_\gamma =2310$~MeV and nearly the complete angular range. The results are compared to and have been included in recent partial wave analyses., Comment: 21 pages

Published
2019

3. Experimental constraints on the $\omega$-nucleus real potential

Author

Friedrich, S., Makonyi, K., Metag, V., Bayadilov, D., Bantes, B., Beck, R., Beloglazov, Y. A., Böse, S., Brinkmann, K. -T., Challand, Th., Crede, V., Dahlke, T., Dietz, F., Drexler, P., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Frommberger, F., Funke, Ch., Gottschall, M., Gridnev, A., Grüner, M., Gutz, E., Hammann, Ch., Hammann, D., Hannappel, J., Hartmann, J., Hillert, W., Hirenzaki, S., Hoffmeister, P., Honisch, Ch., Jaegle, I., Kaiser, D., Kalinowsky, H., Kammer, S., Keshelashvili, I., Kleber, V., Klein, F., Krusche, B., Lang, M., Lopatin, I. V., Maghrbi, Y., Nanova, M., Nagahiro, H., Müller, J., Odenthal, T., Piontek, D., Rostomyan, T., Schaepe, S., Schmidt, Ch., Schmieden, H., Schmitz, R., Seifen, T., Thiel, A., Thoma, U., van Pee, H., Walther, D., Weil, J., Wendel, Ch., Wiedner, U., Wilson, A., Winnebeck, A., and Zenke, F.

Subjects
Nuclear Experiment
Abstract

In a search for $\omega$ mesic states, the production of $\omega$-mesons in coincidence with forward going protons has been studied in photon induced reactions on $^{12}$C for incident photon energies of 1250 - 3100 MeV. The $\pi^0 \gamma$ pairs from decays of bound or quasi-free $\omega$-mesons have been measured with the CBELSA/TAPS detector system in coincidence with protons registered in the MiniTAPS forward array. Structures in the total energy distribution of the $\pi^0 \gamma$ pairs, which would indicate the population and decay of bound $\omega~^{11}$B states, are not observed. The $\pi^0 \gamma$ cross section of 0.3 nb/MeV/sr observed in the bound state energy regime between -100 and 0 MeV may be accounted for by yield leaking into the bound state regime because of the large in-medium width of the $\omega$-meson. A comparison of the measured total energy distribution with calculations suggests the real part $V_0$ of the $\omega~^{11}$B potential to be small and only weakly attractive with $V_0(\rho=\rho_0) = -15\pm$ 35(stat) $\pm$20(syst) MeV in contrast to some theoretical predictions of attractive potentials with a depth of 100 - 150 MeV., Comment: 13 pages, 8 figures

Published
2014
Full Text
View/download PDF

4. First measurement of the helicity asymmetry for $\gamma p\rightarrow p\pi^0$ in the resonance region

Author

Gottschall, M., Anisovich, A. V., Bantes, B., Bayadilov, D., Beck, R., Bichow, M., Böse, S., Brinkmann, K. -Th., Challand, Th., Crede, V., Dietz, F., Dutz, H., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, St., Frommberger, F., Funke, Ch., Gridnev, A., Grüner, M., Gutz, E., Hammann, Ch., Hannappel, J., Hartmann, J., Hillert, W., Hoffmeister, Ph., Honisch, Ch., Jaegle, I., Kaiser, D., Kalinowsky, H., Kammer, S., Keshelashvili, I., Klein, F., Klempt, E., Koop, K., Krusche, B., Kube, M., Lang, M., Lopatin, I., Maghrbi, Y., Makonyi, K., Metag, V., Meyer, W., Müller, J., Nanova, M., Nikonov, V., Novotny, R., Piontek, D., Reicherz, G., Rostomyan, T., Sarantsev, A., Schaepe, St., Schmidt, Ch., Schmieden, H., Schmitz, R., Seifen, T., Sokhoyan, V., Thiel, A., Thoma, U., Urban, M., van Pee, H., Walther, D., Wendel, Ch., Wiedner, U., Wilson, A., and Winnebeck, A.

Subjects
Nuclear Experiment
Abstract

The first measurement of the helicity dependence of the photoproduction cross section of single neutral pions off protons is reported for photon energies from 600 to 2300\,MeV, covering nearly the full solid angle. The data are compared to predictions from the SAID, MAID, and BnGa partial wave analyses. Strikingly large differences between data and predictions are observed which are traced to differences in the helicity amplitudes of well known and established resonances. Precise values for the helicity amplitudes of several resonances are reported.

Published
2013
Full Text
View/download PDF

5. Determination of the {\eta}'-nucleus optical potential

Author

Nanova, M., Metag, V., Paryev, E. Ya., Bayadilov, D., Bantes, B., Beck, R., Beloglazov, Y. A., Böse, S., Brinkmann, K. -T., Challand, Th., Crede, V., Dahlke, T., Dietz, F., Drexler, P., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, S., Frommberger, F., Funke, Ch., Gottschall, M., Gridnev, A., Grüner, M., Gutz, E., Hammann, Ch., Hammann, D., Hannappel, J., Hartmann, J., Hillert, W., Hoffmeister, P., Honisch, Ch., Jaegle, I., Kaiser, D., Kalinowsky, H., Kammer, S., Keshelashvili, I., Kleber, V., Klein, F., Klempt, E., Krusche, B., Lang, M., Lopatin, I. V., Maghrbi, Y., Makonyi, K., Müller, J., Odenthal, T., Piontek, D., Schaepe, S., Schmidt, Ch., Schmieden, H., Schmitz, R., Seifen, T., Thiel, A., Thoma, U., van Pee, H., Walther, D., Wendel, Ch., Wiedner, U., Wilson, A., Winnebeck, A., and Zenke, F.

Subjects
Nuclear Experiment
Abstract

The excitation function and momentum distribution of $\eta^\prime$ mesons have been measured in photon induced reactions on $^{12}{}$C in the energy range of 1250-2600 MeV. The experiment was performed with tagged photon beams from the ELSA electron accelerator using the Crystal Barrel and TAPS detectors. The data are compared to model calculations to extract information on the sign and magnitude of the real part of the $\eta^\prime$-nucleus potential. Within the model, the comparison indicates an attractive potential of -($37 \pm 10(stat)\pm10(syst)$) MeV depth at normal nuclear matter density. Since the modulus of this depth is larger than the modulus of the imaginary part of the $\eta^\prime$-nucleus potential of -($10\pm2.5$) MeV, determined by transparency ratio measurements, a search for resolved $\eta^\prime$-bound states appears promising., Comment: 13 pages, 6 figures

Published
2013
Full Text
View/download PDF

6. Well-established nucleon resonances revisited by double-polarization measurements

Author

Thiel, A., Anisovich, A. V., Bayadilov, D., Bantes, B., Beck, R., Beloglazov, Yu., Bichow, M., Böse, S., Brinkmann, K. -Th., Challand, Th., Crede, V., Dietz, F., Drexler, P., Dutz, H., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, St., Frommberger, F., Funke, Ch., Gottschall, M., Grüner, M., Gutz, E., Hammann, Ch., Hannappel, J., Hartmann, J., Hillert, W., Hoffmeister, Ph., Honisch, Ch., Jaegle, I., Jürgensen, I., Kaiser, D., Kalinowsky, H., Kalischewski, F., Kammer, S., Keshelashvili, I., Kleber, V., Klein, F., Klempt, E., Krusche, B., Lang, M., Lopatin, I., Maghrbi, Y., Makonyi, K., Metag, V., Meyer, W., Müller, J., Nanova, M., Nikonov, V., Novotny, R., Piontek, D., Reicherz, G., Sarantsev, A., Schmidt, Ch., Schmieden, H., Seifen, T., Sokhoyan, V., Sumachev, V., Thoma, U., van Pee, H., Walther, D., Wendel, Ch., Wiedner, U., Wilson, A., Winnebeck, A., and Wunderlich, Y.

Subjects
Nuclear Experiment
Abstract

The first measurement is reported of the double-polarization observable G in photoproduction of neutral pions off protons, covering the photon energy range from 620 to 1120 MeV and the full solid angle. G describes the correlation between the photon polarization plane and the scattering plane for protons polarized along the direction of the incoming photon. The observable is highly sensitive to contributions from baryon resonances. The new results are compared to the predictions from SAID, MAID, and BnGa partial wave analyses. In spite of the long-lasting efforts to understand {\gamma}p -> p{\pi} 0 as the simplest photoproduction reaction, surprisingly large differences between the new data and the latest predictions are observed which are traced to different contributions of the N (1535) with spin-parity J^P = 1/2^- and N (1520) with J^P = 3/2^- . In the third resonance region, where N (1680) with J^P = 5/2^+ production dominates, the new data are reasonably close to the predictions., Comment: Submitted for publication in PRL

Published
2012
Full Text
View/download PDF

7. Measurement of the helicity asymmetry E for the reaction γp→π0p: The CBELSA/TAPS Collaboration

Author

Gottschall, M., Afzal, F., Anisovich, A. V., Bayadilov, D., Beck, R., Bichow, M., Brinkmann, K. Th., Crede, V., Dieterle, M., Dietz, F., Dutz, H., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, St., Frommberger, F., Gridnev, A., Grüner, M., Gutz, E., Hammann, Ch., Hannappel, J., Hartmann, J., Hillert, W., Hoffmeister, Ph., Honisch, Ch., Jude, T., Kammer, S., Kalinowsky, H., Keshelashvili, I., Klassen, P., Klein, F., Klempt, E., Koop, K., Krusche, B., Kube, M., Lang, M., Lopatin, I., Mahlberg, P., Makonyi, K., Metag, V., Meyer, W., Müller, J., Müllers, J., Nanova, M., Nikonov, V., Novotny, R., Piontek, D., Reicherz, G., Rostomyan, T., Sarantsev, A., Schmidt, Ch., Schmieden, H., Seifen, T., Sokhoyan, V., Spieker, K., Thiel, A., Thoma, U., Urban, M., Pee, H. van, Walther, D., Wendel, Ch., Werthmüller, D., Wiedner, U., Wilson, A., Winnebeck, A., Witthauer, L., and Wunderlich, Y.

Published
2021
Full Text
View/download PDF

8. Speech Representation as an Instrument of Creating Characters in Reports on the Murder of the De Witt Brothers (1672)

Author

Dietz, F., van de Poppe, C., Vaartjes, A., and ASH (FGw)

Subjects
speech representation, eyewitness reports, agency, west-germanic, linguistic variation
Abstract

In this article, we argue that variation in the representation of speech served as a powerful instrument for reporters of historical events to structure these events and to mitigate or augment the agency of historical figures. The specific case study analysed in this article is a collection of three Dutch texts which report on the murder of the brothers Johan and Cornelis de Witt on 20 August 1672. These reports have already been studied by sociopolitical historians, but they restrict themselves to comparison on the level of the reports’ content. We primarily compare the linguistic shape of the reports to demonstrate how linguistic choices played a vital role in the shaping of public opinions about one of the most dramatic episodes in the history of the Dutch Republic. In previous linguistic, narratological and literary research, speech has already been identified as a stylistic device that shapes the agency of story characters. We are not only the first to focus on speech representation in the Dutch early modern textual culture, but we also analyse the representa- tion of speech synchronically, by developing an interdisciplinary (linguistic-literary) approach. We demonstrate that the reporters on the massacre of the De Witt brothers, rather than transmitting a clear message about the way readers should understand the political events, used various modes of speech to create some space for their readers to consider the event from different perspectives, to ask critical questions about guilt and agency, and to construct their own interpretation., Journal of Historical Syntax, Vol. 6 No. 13-18 (2022): Special issue: Cross-disciplinary approaches to linguistic variation in Early Modern West Germanic

Published
2022
Full Text
View/download PDF

10. Grijs vernuft in groene jaren: Reflecties op auteurschapsontwikkeling bij vrouwen in vroegmoderne voorwerkteksten

Author

van Bodegraven, A., Dietz, F., Geerdink, N., ASH (FGw), and LS OW Vroegmoderne Nederlandse Letterk.

Subjects
Taverne
Abstract

Early modern literary careers are generally perceived as progressive: inadequate young authors gradually develop their literary skills and knowledge while growing old. In this article, we analyse how young authorship and career development of early modern Dutch women writers was represented in front matter in their literary print-publications. We demonstrate that front matter’s praise of young women’s authorship was connected to both male and female flavoured qualities. These qualities turn out to be connected to the ways in which female careers were represented. When young female authorship was mainly legitimated by referring to intellectual capacities considered typically masculine, the women’s career is perceived as progressive. However: when this legitimation is rather based on qualities considered as typically feminine, such as virtuousness and handiwork skills, the women’s authorship at an early age is sometimes represented as already fully-grown and complete.

Published
2022

11. Photoproduction of ω mesons off protons and neutrons

Author

Dietz, F., Metag, V., Anisovich, A. V., Bacelar, J. C. S., Bantes, B., Bartholomy, O., Bayadilov, D. E., Beck, R., Belogazov, Y. A., Castelijns, R., Crede, V., Dutz, H., Elsner, D., Ewald, R., Frommberger, F., Funke, C., Gothe, R., Gregor, R., Gridnev, A. B., Gutz, E., Hillert, W., Höffgren, S., Hoffmeister, P., Horn, I., Jaegle, I., Junkersfeld, J., Kalinowsky, H., Kammer, S., Kleber, V., Klein, Frank, Klein, Friedrich, Klempt, E., Konrad, M., Kotulla, M., Krusche, B., Lang, M., Löhner, H., Lopatin, I. V., Lugert, S., Menze, D., Mertens, T., Messchendorp, J. G., Nikonov, V. A., Nanova, M., Novinski, D. V., Novotny, R., Ostrick, M., Pant, L. M., van Pee, H., Pfeiffer, M., Rostomyan, T., Roy, A., Schadmand, S., Schmidt, C., Schmieden, H., Schoch, B., Shende, S. V., Shklyar, V., Süle, A., Sumachev, V. V., Szczepanek, T., Thoma, U., Trnka, D., Varma, R., Walter, D., Wendel, C., Wilson, A., and The CBELSA/TAPS Collaboration

Published
2015
Full Text
View/download PDF

14. New data on With Polarized Photons and Protons and Their Implications for → Decays

Author

Müller, J., Hartmann, J., Grüner, M., Afzal, F., Anisovich, A.V., Bantes, B., Bayadilov, D., Beck, R., Becker, M., Beloglazov, Y., Berlin, A., Bichow, M., Böse, S., Brinkmann, K.T., Challand, T., Crede, V., Dietz, F., Dieterle, M., Drexler, P., Dutz, H., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, S., Frommberger, F., Funke, C., Gottschall, M., Gridnev, A., Goertz, S., Gutz, E., Hammann, C., Hannen, V., Hannappel, J., Herick, J., Hillert, W., Hoffmeister, P., Honisch, C., Jahn, O., Jude, T., Jaegle, I., Käser, A., Kaiser, D., Kalinowsky, H., Kalischewski, F., Kammer, S., Keshelashvili, I., Klassen, P., Kleber, V., Klein, F., Klempt, E., Koop, K., Krusche, B., Kube, M., Lang, M., Lopatin, I., Maghrbi, Y., Mahlberg, P., Makonyi, K., Messi, F., Metag, V., Meyer, W., Müllers, J., Nanova, M., Nikonov, V., Novinski, D., Novotny, R., Piontek, D., Reicherz, G., Rosenbaum, C., Rostomyan, T., Roth, B., Sarantsev, A., Schmidt, C., Schmieden, H., Schmitz, R., Seifen, T., Sokhoyan, V., Thiel, A., Thoma, U., Urban, M., van Pee, H., Walther, D., Wendel, C., Wiedner, U., Wilson, A., Winnebeck, A., and Witthauer, L.

Abstract

The polarization observables T,E,P,H, and G in photoproduction of η mesons off protons are measured for photon energies from threshold to W=2400 MeV (T), 2280 MeV (E), 1620 MeV (P,H), or 1820 MeV (G), covering nearly the full solid angle. The data are compared to predictions from the SAID, MAID, JüBo, and BnGa partial-wave analyses. A refit within the BnGa approach including further data yields precise branching ratios for the Nη decay of nucleon resonances. A Nη-branching ratio of 0.33±0.04 for N(1650)1/2− is found, which reduces the large and controversially discussed Nη-branching ratio difference of the two lowest mass JP=1/2−-resonances significantly.

Published
2020

15. Pathways to agency: women writers and radical thought in the Low Countries, 1500–1800

Author

Paijmans, M., Dietz, F., Geerdink, N., Leemans, I.B., Morrée, C.V. de, Veldhuizen, M.D., Paijmans, M., Dietz, F., Geerdink, N., Leemans, I.B., Morrée, C.V. de, and Veldhuizen, M.D.

Abstract

04 februari 2021, Contains fulltext : 230294.pdf (Publisher’s version ) (Open Access), Previous studies of radical thinkers have brought us few examples of female radicals from the Low Countries, even if the seventeenth-century Dutch Republic was a hub for radical thought which offered a relatively female-friendly climate. In this article, we explore how new perspectives and modes of analysis, better adjusted to the restrictions and opportunities women experienced, make women’s radical thought visible. By doing so, we aim to present a more balanced perspective on what might count as female radical thought in the early modern Low Countries (1500–1800). Starting from the notion of “agency,” we analyze the life, work and relations of three Dutch authors, as well as representations of female radicalism in two literary works, in order to rebalance the notion of radicalism in a woman’s world. Anna Bijns, Meynarda Verboom and Margaretha van Dijk were not radically disruptive in the sense of operating completely outside of male-dominated domains. Instead, they gained agency by negotiating their position in patriarchal knowledge systems and by bending conventions within male-dominated networks so that their voices could be heard. To understand these voices, it is necessary to disconnect “being radical” from “the amount of disruption caused” by female agency.

Published
2021

16. Helden en schurken in de Alkmaarse ontzetnarratieven. De uitwerking van de representatie van Alkmaarders en Spanjaarden in de Alkmaarse ontzetnarratieven op de constructie van stedelijke identiteit.

Author

Borgman, R., Spanjers, R. (Thesis Advisor), Dietz, F., Borgman, R., Spanjers, R. (Thesis Advisor), and Dietz, F.

Abstract

In dit onderzoek staan 7 bronnen met een Alkmaars ontzetnarratief centraal. De bronnen bevatten overeenkomsten en verschillen in genre en media, en zijn onderzocht op representaties van Alkmaarders en Spanjaarden vanuit het proces van othering. Hiervoor is gebruikgemaakt van de representatiemethode van Jenny Kidd en de vier retorische wijzen van Astrid Erll die inzicht geven in de manier waarop cultureel geheugen kan worden overgedragen. Vervolgens is nader beschouwd welke uitwerking deze representaties hebben op de constructie van stedelijke identiteit. Het proces van othering is hierin een belangrijke factor, omdat we in dit proces ons identiteit ontlenen aan het maken van onderscheid ten opzichte van anderen, met name in onze verschillen, en ons dus leert wie we zijn, waar we voor staan, en wat we kunnen verwachten in ons leven. Media en de instituties die cultureel geheugen produceren en distribueren, spelen een belangrijke rol in dit proces van othering. Dit omdat media, geschiedenis en geheugen met elkaar zijn verweven. Via media krijgen wij gereconstrueerde versies van het verleden tot ons, die partijdig en subjectief zijn, en die onze perceptie van de ‘ander’ positief of negatief kunnen beinvloeden. Het langdurig vervallen in vooral negatieve opposities kan ongelijkheid, uitsluiting en onderdrukking bevorderen en/of in standhouden. Dit is problematisch, omdat dit gemeenschapsvorming, het nader tot elkaar brengen van verschillende gemeenschappen in een stad en daarbuiten, tegen kan werken. Uit dit onderzoek is gebleken dat de overgrote deel van de bronnen een gepolariseerde versie van het verleden overdraagt. De overkoepelende boodschap van de Alkmaars ontzetnarratieven is zodoende dat polarisatie, wij zijn ‘goed’ en de ander is ‘slecht’, de drijfkracht moet vormen van de Alkmaarse burger. Hierdoor hebben de representaties een negatieve uitwerking op de constructie van stedelijke identiteit. Transmedialiteit vormt hiertegen een positieve tegenkracht. Dit omda

Published
2021

17. Energy spectra of one-dimensional stacks of polycyclic aromatic hydrocarbons without defects

Author

Tyutyulkov, N., Ivanov, N., Mullen, K., Staykov, A., and Dietz, F.

Subjects
Electron configuration -- Analysis, Molecular dynamics -- Research, Polycyclic aromatic hydrocarbons -- Spectra, Chemicals, plastics and rubber industries
Abstract

The energy spectra of one-dimensional (1-D) stacks consisting of large Pi-Pi interacting polycyclic aromatic hydrocarbons (PAH) is investigated theoretically with the Bloch band theory, taking into account electron correlation. For all arrangements of the molecules within the 1-D stacks the value of the energy gap is different from zero, deltaE [not equal to] 0, which means that the ground state of these systems is a dielectric one.

Published
2004

19. Spin-transfer ctystals: a theoretical study

Author

Tyutyulkov, N., Staneva, M., Stoyanova, A., Alaminova, D., Olbrich, G., and Dietz, F.

Subjects
Chemistry, Physical and theoretical -- Research, Radicals (Chemistry) -- Physiological aspects, Crystalline polymers -- Physiological aspects, Molecules -- Models, Hydrocarbons -- Physiological aspects, Chemicals, plastics and rubber industries
Published
2002

21. Measurement of the helicity asymmetry E for the reaction $$ \gamma p\rightarrow \pi ^0 p$$

Author

Gottschall, M., primary, Afzal, F., additional, Anisovich, A. V., additional, Bayadilov, D., additional, Beck, R., additional, Bichow, M., additional, Brinkmann, K. Th., additional, Crede, V., additional, Dieterle, M., additional, Dietz, F., additional, Dutz, H., additional, Eberhardt, H., additional, Elsner, D., additional, Ewald, R., additional, Fornet-Ponse, K., additional, Friedrich, St., additional, Frommberger, F., additional, Gridnev, A., additional, Grüner, M., additional, Gutz, E., additional, Hammann, Ch., additional, Hannappel, J., additional, Hartmann, J., additional, Hillert, W., additional, Hoffmeister, Ph., additional, Honisch, Ch., additional, Jude, T., additional, Kammer, S., additional, Kalinowsky, H., additional, Keshelashvili, I., additional, Klassen, P., additional, Klein, F., additional, Klempt, E., additional, Koop, K., additional, Krusche, B., additional, Kube, M., additional, Lang, M., additional, Lopatin, I., additional, Mahlberg, P., additional, Makonyi, K., additional, Metag, V., additional, Meyer, W., additional, Müller, J., additional, Müllers, J., additional, Nanova, M., additional, Nikonov, V., additional, Novotny, R., additional, Piontek, D., additional, Reicherz, G., additional, Rostomyan, T., additional, Sarantsev, A., additional, Schmidt, Ch., additional, Schmieden, H., additional, Seifen, T., additional, Sokhoyan, V., additional, Spieker, K., additional, Thiel, A., additional, Thoma, U., additional, Urban, M., additional, Pee, H. van, additional, Walther, D., additional, Wendel, Ch., additional, Werthmüller, D., additional, Wiedner, U., additional, Wilson, A., additional, Winnebeck, A., additional, Witthauer, L., additional, and Wunderlich, Y., additional

Published
2021
Full Text
View/download PDF

22. New data on γ→p→→ηp with polarized photons and protons and their implications for N⁎ → Nη decays

Author

Müller, J., primary, Hartmann, J., additional, Grüner, M., additional, Afzal, F., additional, Anisovich, A.V., additional, Bantes, B., additional, Bayadilov, D., additional, Beck, R., additional, Becker, M., additional, Beloglazov, Y., additional, Berlin, A., additional, Bichow, M., additional, Böse, S., additional, Brinkmann, K.-T., additional, Challand, T., additional, Crede, V., additional, Dietz, F., additional, Dieterle, M., additional, Drexler, P., additional, Dutz, H., additional, Eberhardt, H., additional, Elsner, D., additional, Ewald, R., additional, Fornet-Ponse, K., additional, Friedrich, S., additional, Frommberger, F., additional, Funke, C., additional, Gottschall, M., additional, Gridnev, A., additional, Goertz, S., additional, Gutz, E., additional, Hammann, C., additional, Hannen, V., additional, Hannappel, J., additional, Herick, J., additional, Hillert, W., additional, Hoffmeister, P., additional, Honisch, C., additional, Jahn, O., additional, Jude, T., additional, Jaegle, I., additional, Käser, A., additional, Kaiser, D., additional, Kalinowsky, H., additional, Kalischewski, F., additional, Kammer, S., additional, Keshelashvili, I., additional, Klassen, P., additional, Kleber, V., additional, Klein, F., additional, Klempt, E., additional, Koop, K., additional, Krusche, B., additional, Kube, M., additional, Lang, M., additional, Lopatin, I., additional, Maghrbi, Y., additional, Mahlberg, P., additional, Makonyi, K., additional, Messi, F., additional, Metag, V., additional, Meyer, W., additional, Müllers, J., additional, Nanova, M., additional, Nikonov, V., additional, Novinski, D., additional, Novotny, R., additional, Piontek, D., additional, Reicherz, G., additional, Rosenbaum, C., additional, Rostomyan, T., additional, Roth, B., additional, Sarantsev, A., additional, Schmidt, C., additional, Schmieden, H., additional, Schmitz, R., additional, Seifen, T., additional, Sokhoyan, V., additional, Thiel, A., additional, Thoma, U., additional, Urban, M., additional, van Pee, H., additional, Walther, D., additional, Wendel, C., additional, Wiedner, U., additional, Wilson, A., additional, Winnebeck, A., additional, and Witthauer, L., additional

Published
2020
Full Text
View/download PDF

24. Energy spectra of giant polycyclic aromatic hydrocarbons

Author

Tyutyulkov, N., Madjarova, G., Dietz, F., and Mullen, K.

Subjects
Polymers -- Research, Hydrocarbons -- Analysis, Carbon -- Research, Atoms -- Research, Polycyclic aromatic compounds -- Research, Chemicals, plastics and rubber industries
Abstract

A theoretical study was conducted to analyze the energy spectra of three categories of polybenzenoid hydrocarbons supporting a large number of carbon atoms. The existence of defect states of hydrocarbons with vacancies was also examined. An extended Schrieffer-Heeger model was utilized to determine the geometry of the infinite polymers. Results indicated that point defects resulting from the removal of one or more C atoms from the hydrocarbons generated levels in the energy gap.

Published
1998

25. Galvinoxyl radicals in 1-D crystals

Author

Dietz, F., Tyutyulkov, N., and Baumgarten, M.

Subjects
Crystals -- Magnetic properties, Intermolecular forces -- Research, Molecular structure -- Research, Chemicals, plastics and rubber industries
Abstract

The molecular radical crystals (MRCs) of galvinoxyl radicals were investigated using the band theory to determine the relation between the nature of the intermolecular magnetic reaction and the topology and geometry of radicals in 1-D organic radical crystals. Results showed that the geometry of the galvinoxyl radicals in the MRCs is optimal for the ferromagnetic character. Moreover, the intermolecular magnetic coupling with the MRCs is one order of magnitude less than that between galvinoxyl radicals bonded by meta-phenylene units in 1-D polymer.

Published
1998

32. New data on $\vec�� \vec{p}\rightarrow ��p$ with polarized photons and protons and their implications for $N^* \to N��$ decays

Author

M��ller, J., Hartmann, J., Gr��ner, M., Afzal, F., Anisovich, A. V., Bantes, B., Bayadilov, D., Beck, R., Becker, M., Beloglazov, Y., Berlin, M., Bichow, M., B��se, S., Brinkmann, K. -T., Challand, T., Crede, V., Dietz, F., Dieterle, M., Drexler, P., Dutz, H., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, S., Frommberger, F., Funke, C., Gottschall, M., Gridnev, A., Goertz, S., Gutz, E., Hammann, C., Hannen, V., Hannappel, J., Herick, J., Hillert, W., Hoffmeister, P., Honisch, C., Jahn, O., Jude, T., Jaegle, I., K��ser, A., Kaiser, D., Kalinowsky, H., Kalischewski, F., Kammer, S., Keshelashvili, I., Klassen, P., Kleber, V., Klein, F., Klempt, E., Koop, K., Krusche, B., Kube, M., Lang, M., Lopatin, I., Maghrbi, Y., Mahlberg, P., Makonyi, K., Messi, F., Metag, V., Meyer, W., M��llers, J., Nanova, M., Nikonov, V., Novinski, D., Novotny, R., Piontek, D., Reicherz, G., Rosenbaum, C., Rostomyan, T., Roth, B., Sarantsev, A., Schmidt, C., Schmieden, H., Schmitz, R., Seifen, T., Sokhoyan, V., Thiel, A., Thoma, U., Urban, M., van Pee, H., Walther, D., Wendel, C., Wiedner, U., Wilson, A., Winnebeck, A., Witthauer, L., and Collaboration, CBELSA/TAPS

Subjects
Nuclear Theory, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

The polarization observables $T, E, P, H$, and $G$ in photoproduction of $��$ mesons off protons are measured for photon energies from threshold to $W=2400\,$MeV ($T$), 2280 MeV ($E$), 1620 MeV ($P, H$), or 1820 MeV ($G$), covering nearly the full solid angle. The data are compared to predictions from the SAID, MAID, J��Bo, and BnGa partial-wave analyses. A refit within the BnGa approach including further data yields precise branching ratios for the $N��$ decay of nucleon resonances. A $N��$-branching ratio of $0.33\pm 0.04$ for $N(1650)1/2^-$ is found, which reduces the large and controversially discussed $N��$-branching ratio difference of the two lowest mass $J^P=1/2^-$-resonances significantly., 10 pages, 11 figures

Published
2019
Full Text
View/download PDF

33. Measurement of the Helicity Asymmetry $E$ for the reaction $ ��p\to ��^0 p$

Author

TAPS Collaboration, Gottschall, M., Afzal, F., Anisovich, A. V., Bayadilov, D., Beck, R., Bichow, M., Brinkmann, K. -Th., Crede, V., Dieterle, M., Dietz, F., Dutz, H., Eberhardt, H., Elsner, D., Ewald, R., Fornet-Ponse, K., Friedrich, St., Frommberger, F., Gridnev, A., Gr��ner, M., Gutz, E., Hammann, Ch., Hannappel, J., Hartmann, J., Hillert, W., Hoffmeister, Ph., Honisch, Ch., Jude, T., Kammer, S., Kalinowsky, H., Keshelashvili, I., Klassen, P., Klein, F., Klempt, E., Koop, K., Krusche, B., Kube, M., Lang, M., Lopatin, I., Mahlberg, P., Makonyi, K., Metag, V., Meyer, W., M��ller, J., M��llers, J., Nanova, M., Nikonov, V., Novotny, R., Piontek, D., Reicherz, G., Rostomyan, T., Sarantsev, A., Schmidt, Ch., Schmieden, H., Seifen, T., Sokhoyan, V., Spieker, K., Thiel, A., Thoma, U., Urban, M., van Pee, H., Walther, D., Wendel, Ch., Werthm��ller, D., Wiedner, U., Wilson, A., Winnebeck, A., Witthauer, L., and Wunderlich, Y.

Subjects
Nuclear Theory, Physics::Accelerator Physics, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

A measurement of the double-polarization observable $E$ for the reaction $��p\to ��^0 p$ is reported. The data were taken with the CBELSA/TAPS experiment at the ELSA facility in Bonn using the Bonn frozen-spin butanol (C$_4$H$_9$OH) target, which provided longitudinally-polarized protons. Circularly-polarized photons were produced via bremsstrahlung of longitudinally-polarized electrons. The data cover the photon energy range from $E_��=600$~MeV to $E_��=2310$~MeV and nearly the complete angular range. The results are compared to and have been included in recent partial wave analyses., 21 pages

Published
2019
Full Text
View/download PDF

38. Feest van herinnering, feest van herkenning. Muziek, identiteit en gemeenschapsvorming op de reformatieherdenking van 1817.

Author

Vogel, H., Stronks, E. (Thesis Advisor), Dietz, F., Vogel, H., Stronks, E. (Thesis Advisor), and Dietz, F.

Abstract

Het 'derde eeuwfeest der kerkhervorming' (1817) was een groots, internationaal evenement dat ook in Nederland met vele kerkdiensten en ander feestvertoon werd gevierd. Dit onderzoek laat zien dat nieuwe kerkliederen en cantates werden ingezet om een transnationale protestantse gemeenschapszin te creëren, effectief gemaakt in het zingen zelf en de act van het collectief herdenken. Door het zingen en herdenken als sociale interactie te beschouwen, wordt aannemelijk gemaakt dat organisatoren, dichters en componisten niet enkel een 'imagined community' wilden creëren, maar lokale aanwezigen ook zich lichamelijk deel wilden laten voelen van deze gemeenschap. Hiervoor worden de concepten 'embodied community' en 'aesthetic formations' gehanteerd, ter aanvulling en verdieping van Benedict Andersons term. Nationale sentimenten blijken in de liederen en cantates niet overheersend aanwezig te zijn: vooral het construeren en vieren van een protestants verleden en heden, met het katholicisme als voornaamste Ander, staat centraal. Evenwel kan dat als oogmerk en effect het buitensluiten van katholieken in de culturele natie van het Verenigd Koninkrijk der Nederlanden hebben gehad en is nationalisme zodoende indirecter aanwezig op het derde eeuwfeest.

Published
2018

39. 'T is al vrouwenwerk: Ontwerp en evaluatie van een Litlabproef over vrouwelijk schrijverschap

Author

Raven, A.C., Dietz, F. (Thesis Advisor), Raven, A.C., and Dietz, F. (Thesis Advisor)

Abstract

In deze scriptie wordt verslag gedaan van een ontwerponderzoek voor een nieuwe LitLabproef. LitLab is een digitaal laboratorium dat ontwikkeld is door onderzoekers van de universiteit Utrecht. LitLab springt in op een gat dat docenten Nederlands constateerden in de huidige staat van het Nederlandsonderwijs op middelbare scholen, waarin erg weinig aandacht is voor academisch literatuuronderwijs. De LitLabproef gaat over vrouwelijk schrijverschap. De scriptie bestaat uit een vooronderzoek en een evaluatieonderzoek. Het vooronderzoek bestaat uit een literatuuronderzoek over vrouwelijk schrijverschap en literatuurgeschiedenisdidactiek. Hiernaast zijn er geschiedenisdocenten geïnterviewd voor een breder beeld over de specifieke didactiek van historische vergelijkingen. Aan de hand van het vooronderzoek is de LitLabproef ontworpen. De LitLabproef is door 48 leerlingen uit een 4v-klas en 5v-klas getest. In het evaluatieonderzoek doe ik verslag van een leerlingenquête en leerlinginterviews. De enquête verschaft inzicht in de waardering van de proef, de interviews werden gebruikt om vast te stellen of leerlingen door de LitLabproef vrouwelijk schrijverschap goed konden analyseren. Uit het evaluatieonderzoek bleek dat de LitLabproef in de huidige vorm nog niet optimaal is. Bepaalde opdrachten zullen aangepast worden en de proef zal ingekort worden.

Published
2018

40. Circulaire economie vergt een kabinetsbrede aanpak

Author

Rood, T., Hanemaaijer, A., Dietz, F., Rood, T., Hanemaaijer, A., and Dietz, F.

Abstract

Wereldwijd is de hoeveelheid grondstoffen die wordt gebruikt de afgelopen eeuw verachtvoudigd. Dit komt vooral door inkomensgroei en de toename van de bevolking. Naar verwachting zet deze trend de komende decennia door. Zonder aanvullend beleid leidt dit tot toenemende milieudruk en mogelijk tot leveringszekerheidsrisico’s voor cruciale grond stoffen.

Published
2018

42. Naar een verkenning brede welvaart

Author

Dietz, F., Gerwen, O.-J. van, Boelhouwer, J., Broek, A. van den, Romijn, G., Dietz, F., Gerwen, O.-J. van, Boelhouwer, J., Broek, A. van den, and Romijn, G.

Abstract

Op uitnodiging van het kabinet en als uitvloeisel van het rapport van de Tijdelijke Commissie Breed Welvaartsbegrip (de Commissie Grashoff) werken het CBS en de drie planbureaus aan een Monitor Brede welvaart (CBS) en een Verkenning Brede welvaart (CPB/PBL/SCP). Beide publicaties zullen voor het eerst in 2018 verschijnen. Daarin zal op verzoek van enkele ministeries ook aandacht zijn voor de verbinding met het programma van de Sustainable Development Goals van de Verenigde Naties. Deze policy brief schetst achtereenvolgens drie perspectieven op brede welvaart (kwaliteitvan- leefomgeving, kwaliteit-van-leven en welvaartseconomisch), wat de planbureaus onder brede welvaart verstaan, hoe dat te meten is, welke onderwerpen in de verkenning aan de orde kunnen komen en hoe dit in verband kan worden gezien met de Sustainable Development Goals.

Published
2017

43. Nature of the magnetic interaction in organic radical crystals. 5.magnetic interaction in mixed radical ion crystals

Author

Dietz, F., Tyutyulkov, N., Staneva, M., Baumgarten, M., and Mullen, K.

Subjects
Hydrocarbons -- Structure, Hydrocarbons -- Spectra, Ionization -- Analysis, Ions -- Structure, Ions -- Spectra, Chemicals, plastics and rubber industries
Abstract

A theoretical investigation of the nature and magnitude of the spin exchange within the half-filled band of 1-D stacks of mixed radical ion crystals (MRIC) consisting of two hydrocarbons H1 and H2 with different ionization potentials and electron affinities is carried out. The numerical results illustrate possibility of the appearance of a principally new class of 1-D pure organic Pi-systems with magnetic ordering, namely mixed radical ion crystals consisting of hydrocarbons with different ionization potentials or electrons affinity.

Published
2001

44. Nature of the magnetic interaction in organic radical crystals.4. magnetic interaction in mixed molecular radical crystals

Author

Tyutyulkov, N., Dietz, F., Madjarova, G., and Mullen, K.

Subjects
Crystals -- Research, Crystals -- Magnetic properties, Organic compounds -- Research, Organic compounds -- Magnetic properties, Radicals (Chemistry) -- Research, Chemistry, Physical and theoretical -- Research, Chemicals, plastics and rubber industries
Abstract

The nature of the spin exchange interaction within the half-filled band of one-dimensional stacks of 1-D mixed molecular radical crystals (MMRC) is investigated. It was found that nature and the magnitude of the exchange interaction in MMRCs are significantly different in comparison with the parent MRCs.

Published
2000

45. Toegepaste Microeconomie

Author

Dietz, F., Marks, P., and Heijman, W.J.M.

Subjects
Agricultural Economics and Rural Policy, Agrarische Economie en Plattelandsbeleid, Life Science, WASS
Published
2015

46. Rapport Werkgroep Discontovoet 2015

Author

van Ewijk, C., 't Hoen, A., Doorbosch, R.., Reininga, T., Geurts, B., Visser, E., Bongers, A., van Winden, P., Jonker, J.-J., Elsenburg, W., Mink, M., Huizinga, F., Aalbers, R., Vollebergh, H., Renes, G., Dietz, F., de Zeeuw, A., de Jong, F., Koopmans, C., Pomp, M., and Macro & International Economics (ASE, FEB)

Abstract

Met dit rapport brengt de Werkgroep Discontovoet advies uit over de discontovoeten die dienen te worden gebruikt in Maatschappelijke Kosten-Baten Analyses (MKBA’s).

Published
2015

47. De jongens tegen de meisjes Een comparatief onderzoek aan de hand van De kleine Grandisson en De kleine Klarissa.

Author

Hop, L., Dietz, F. (Thesis Advisor), Hop, L., and Dietz, F. (Thesis Advisor)

Abstract

De jongens aan de ene kant en de meisjes aan de andere kant is een verschijnsel dat al jaar en dag voorkomt en eens in de zoveel tijd tot discussie leidt. Want waarom staan in de speelgoedgids rond december alleen maar meisjes achter het minifornuis en de stofzuiger? En spelen de jongens in diezelfde speelgoedgids niet met poppen, maar enkel met vrachtwagens en gereedschap? In het huidige onderzoek naar kinder- en jeugdliteratuur, waarmee boeken specifiek voor kinderen tussen de 5 en 15 jaar bedoeld worden, in de 18e eeuw is tot nu toe nog niet nader onderzocht hoe deze verschillen tussen jongens en meisjes tot uiting komen in de literatuur en welk beeld de literatuur afgeeft over jongen- en meisje-zijn. Aan de hand van een tweetal kinderboeken van de schrijfster Maria Geertruid de Cambon - Van der Werken, De Kleine Grandisson en De Kleine Klarissa , die kort na elkaar verschenen, wordt in deze thesis specifiek naar de inhoud van beide verhalen gekeken en zo onderzocht of en hoe deze verhalen bijdragen aan de vorming van een identiteit van de jeugdige lezer, met name naar de ontwikkeling van een genderidentiteit.

Published
2016

48. Welvaart heeft geen kleur

Author

Dietz, F., Hanemaaijer, A., Gerwen, O.-J. van, Dietz, F., Hanemaaijer, A., and Gerwen, O.-J. van

Abstract

Het bruto binnenlands product (BBP) geeft een onvolledig beeld van welvaart. Buiten beeld blijven de consequenties van economische ontwikkeling voor de kwaliteit van milieu en natuur, voor de sociale cohesie, voor de bestaansmogelijkheden van mensen elders op de wereld en voor de na ons komende generaties. Dergelijke informatie is cruciaal om zicht te hebben op de relevante afruilrelaties en te komen tot goed onderbouwde beleidskeuzes. Dat pleit voor het werken met een set van indicatoren, die zowel de positieve als de negatieve gevolgen van een activiteit of beleidsvoornemen zichtbaar maakt.

Published
2016

Catalog

Books, media, physical & digital resources
See catalog results