Zobrazeno 1 - 10
of 144
pro vyhledávání: '"M. Kozina"'
Autor:
M. P. Jiang, S. Fahy, A. Hauber, É. D. Murray, I. Savić, C. Bray, J. N. Clark, T. Henighan, M. Kozina, A. M. Lindenberg, P. Zalden, M. Chollet, J. M. Glownia, M. C. Hoffmann, T. Sato, D. Zhu, O. Delaire, A. F. May, B. C. Sales, R. Merlin, M. Trigo, D. A. Reis
Publikováno v:
Structural Dynamics, Vol 9, Iss 2, Pp 024301-024301-10 (2022)
We report the observation of photo-induced plasmon–phonon coupled modes in the group IV–VI semiconductor PbTe using ultrafast x-ray diffuse scattering at the Linac Coherent Light Source. We measure the near-zone-center excited-state dispersion of
Externí odkaz:
https://doaj.org/article/52b178575c2941b8bad05b03d6f8db37
Autor:
K. Ledbetter, E. Biasin, J. P. F. Nunes, M. Centurion, K. J. Gaffney, M. Kozina, M.-F. Lin, X. Shen, J. Yang, X. J. Wang, T. J. A. Wolf, A. A. Cordones
Publikováno v:
Structural Dynamics, Vol 7, Iss 6, Pp 064901-064901-10 (2020)
Developing femtosecond resolution methods for directly observing structural dynamics is critical to understanding complex photochemical reaction mechanisms in solution. We have used two recent developments, ultrafast mega-electron-volt electron sourc
Externí odkaz:
https://doaj.org/article/d2a0b90b98114f5a957efce3969b5d17
Autor:
J. P. F. Nunes, K. Ledbetter, M. Lin, M. Kozina, D. P. DePonte, E. Biasin, M. Centurion, C. J. Crissman, M. Dunning, S. Guillet, K. Jobe, Y. Liu, M. Mo, X. Shen, R. Sublett, S. Weathersby, C. Yoneda, T. J. A. Wolf, J. Yang, A. A. Cordones, X. J. Wang
Publikováno v:
Structural Dynamics, Vol 7, Iss 2, Pp 024301-024301-13 (2020)
The conversion of light into usable chemical and mechanical energy is pivotal to several biological and chemical processes, many of which occur in solution. To understand the structure–function relationships mediating these processes, a technique w
Externí odkaz:
https://doaj.org/article/ec645ae7115543839798ec9ceecb682e
Autor:
M. P. Jiang, M. Trigo, I. Savić, S. Fahy, É. D. Murray, C. Bray, J. Clark, T. Henighan, M. Kozina, M. Chollet, J. M. Glownia, M. C. Hoffmann, D. Zhu, O. Delaire, A. F. May, B. C. Sales, A. M. Lindenberg, P. Zalden, T. Sato, R. Merlin, D. A. Reis
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
Group IV–VI materials often exist in a state near an electronic or structural phase transition. Here, the authors use ultrafast X-ray scattering to show that coupling of band-edge electrons and phonons causes the ferroelectric instability observed
Externí odkaz:
https://doaj.org/article/83f4952e5a204f1b813f568524223b8f
Autor:
M. Kozina, M. Trigo, M. Chollet, J. N. Clark, J. M. Glownia, A. C. Gossard, T. Henighan, M. P. Jiang, H. Lu, A. Majumdar, D. Zhu, D. A. Reis
Publikováno v:
Structural Dynamics, Vol 4, Iss 5, Pp 054305-054305-8 (2017)
Here, we report Fourier-transform inelastic x-ray scattering measurements of photoexcited GaAs with embedded ErAs nanoparticles. We observe temporal oscillations in the x-ray scattering intensity, which we attribute to inelastic scattering from coh
Externí odkaz:
https://doaj.org/article/fd028afb85bc476db2348311a37fa3b1
Autor:
M. Kozina, T. van Driel, M. Chollet, T. Sato, J. M. Glownia, S. Wandel, M. Radovic, U. Staub, M. C. Hoffmann
Publikováno v:
Structural Dynamics, Vol 4, Iss 5, Pp 054301-054301-7 (2017)
We use ultrafast X-ray pulses to characterize the lattice response of SrTiO3 when driven by strong terahertz fields. We observe transient changes in the diffraction intensity with a delayed onset with respect to the driving field. Fourier analysis
Externí odkaz:
https://doaj.org/article/75b8ba40430c496f82a10d9fef96d839
Autor:
M. Kozina, T. Hu, J. S. Wittenberg, E. Szilagyi, M. Trigo, T. A. Miller, C. Uher, A. Damodaran, L. Martin, A. Mehta, J. Corbett, J. Safranek, D. A. Reis, A. M. Lindenberg
Publikováno v:
Structural Dynamics, Vol 1, Iss 3, Pp 034301-034301-8 (2014)
We report measurements of the transient structural response of weakly photo-excited thin films of BiFeO3, Pb(Zr,Ti)O3, and Bi and time-scales for interfacial thermal transport. Utilizing picosecond x-ray diffraction at a 1.28 MHz repetition rate wi
Externí odkaz:
https://doaj.org/article/869bcb7f7d8641f9bbf067d59d203ac3
Autor:
B Kettle, A Aquila, S Boutet, P H Bucksbaum, G Carini, Y Feng, E Gamboa, S Ghimire, S Glenzer, P Hart, J B Hastings, T Henighan, M Hunter, J Koglin, M Kozina, H Liu, M J MacDonald, M Trigo, D A Reis, M Fuchs
Publikováno v:
New Journal of Physics, Vol 23, Iss 11, p 115008 (2021)
X-ray free-electron lasers can generate radiation pulses with extreme peak intensities at short wavelengths. This enables the investigation of laser–matter interactions in a regime of high fields, yet at a non-relativistic ponderomotive potential,
Externí odkaz:
https://doaj.org/article/cf3defde91364e65a5f1ac9ec6ee99b2
Publikováno v:
Journal of Clinical Psychology. 78:1839-1850
Trauma and resulting functional limitations demonstrate associations with perceived burdensomeness and thwarted belongingness, factors contributing to elevated risk for suicidal ideation. However, survivors display differential risk in response to im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::532c922971209f31b498d2fbee22152e
https://doi.org/10.1002/jclp.23327
https://doi.org/10.1002/jclp.23327
Autor:
Hannah C. Feldman, Elisa Merlini, Carlos Guijas, Kristen E. DeMeester, Evert Njomen, Ellen M. Kozina, Minoru Yokoyama, Ekaterina Vinogradova, Holly T. Reardon, Bruno Melillo, Stuart L. Schreiber, Andrea Loreto, Jacqueline L. Blankman, Benjamin F. Cravatt
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America. 119(35)
The nicotinamide adenine dinucleotide hydrolase (NADase) sterile alpha toll/interleukin receptor motif containing-1 (SARM1) acts as a central executioner of programmed axon death and is a possible therapeutic target for neurodegenerative disorders. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2677a7e30b0fa14c560e8dc1e85639b4
https://pubmed.ncbi.nlm.nih.gov/35994671
https://pubmed.ncbi.nlm.nih.gov/35994671