Search Results - "O’Keeffe, P"

Sync and Swarm: Solvable Model of Nonidentical Swarmalators by Yoon, S., O’Keeffe, K. P., Mendes, J. F. F., Goltsev, A. V.

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Anthropogenic, biogenic, and photochemical influences on surface formaldehyde and its significant decadal (2006–2017) decrease in the Lewiston-Clarkston valley of the northwestern United States by Li, R., Jobson, B.T., Wen, M., Li, A.L., Huangfu, Y., Zhang, W., Hardy, R., O'Keeffe, P., Simpson, J., Fauci, M., Paden, N.

“…Formaldehyde (HCHO) is a key carcinogen and plays an important role in atmospheric chemistry. Both field measurements and Positive Matrix Factorization (PMF)…”
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Evidence that curtailing proactive policing can reduce major crime by Sullivan, Christopher M., O’Keeffe, Zachary P.

“…Governments employ police to prevent criminal acts. But it remains in dispute whether high rates of police stops, criminal summonses and aggressive low-level…”
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Determining the polarization state of an extreme ultraviolet free-electron laser beam using atomic circular dichroism by Mazza, T., Ilchen, M., Rafipoor, A. J., Callegari, C., Finetti, P., Plekan, O., Prince, K. C., Richter, R., Danailov, M. B., Demidovich, A., De Ninno, G., Grazioli, C., Ivanov, R., Mahne, N., Raimondi, L., Svetina, C., Avaldi, L., Bolognesi, P., Coreno, M., O'Keeffe, P., Di Fraia, M., Devetta, M., Ovcharenko, Y., Möller, Th, Lyamayev, V., Stienkemeier, F., Düsterer, S., Ueda, K., Costello, J. T., Kazansky, A. K., Kabachnik, N. M., Meyer, M.

“…Ultrafast extreme ultraviolet and X-ray free-electron lasers are set to revolutionize many domains such as bio-photonics and materials science, in a manner…”
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Oscillators that sync and swarm by O’Keeffe, Kevin P., Hong, Hyunsuk, Strogatz, Steven H.

“…Synchronization occurs in many natural and technological systems, from cardiac pacemaker cells to coupled lasers. In the synchronized state, the individual…”
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The OCS S L3MM Auger Spectrum and Angular Distributions Studied by Photoelectron−Auger Electron Coincidence Experiments by Bolognesi, P, O’Keeffe, P, Avaldi, L

“…The selectivity of the photoelectron−Auger electron coincidence technique has been used to isolate the S L3MM contribution to the L2,3MM Auger spectrum in OCS…”
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Collective Autoionization in Multiply-Excited Systems: A novel ionization process observed in Helium Nanodroplets by LaForge, A. C., Drabbels, M., Brauer, N. B., Coreno, M., Devetta, M., Di Fraia, M., Finetti, P., Grazioli, C., Katzy, R., Lyamayev, V., Mazza, T., Mudrich, M., O'Keeffe, P., Ovcharenko, Y., Piseri, P., Plekan, O., Prince, K. C., Richter, R., Stranges, S., Callegari, C., Möller, T., Stienkemeier, F.

“…Free electron lasers (FELs) offer the unprecedented capability to study reaction dynamics and image the structure of complex systems. When multiple photons are…”
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Swarmalators with thermal noise by Hong, Hyunsuk, O'Keeffe, Kevin P., Lee, Jae Sung, Park, Hyunggyu

“…We investigate a population of swarmalators, mobile versions of phase oscillators that both sync in time and swarm through space. We focus on an XY-type model…”
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Near-threshold photoelectron angular distributions from two-photon resonant photoionization of He by O'Keeffe, P, Miheli, A, Bolognesi, P, itnik, M, Moise, A, Richter, R, Avaldi, L

“…Two-photon resonant photoionization of helium is investigated both experimentally and theoretically. Ground state helium atoms are excited to the 1s4p, 1s5p…”
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Angular distribution and circular dichroism in the two-colour XUV+NIR above-threshold ionization of helium by Mazza, T., Ilchen, M., Rafipoor, A.J., Callegari, C., Finetti, P., Plekan, O., Prince, K.C., Richter, R., Demidovich, A., Grazioli, C., Avaldi, L., Bolognesi, P., Coreno, M., O'Keeffe, P., Di Fraia, M., Devetta, M., Ovcharenko, Y., Lyamayev, V., Düsterer, S., Ueda, K., Costello, J.T., Gryzlova, E.V., Strakhova, S.I., Grum-Grzhimailo, A.N., Bozhevolnov, A.V., Kazansky, A.K., Kabachnik, N.M., Meyer, M.

“…The photoelectron angular distribution and the circular dichroism in two-colour XUV+NIR above-threshold ionization of helium atoms have been investigated both…”
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Graphene-Induced Improvements of Perovskite Solar Cell Stability: Effects on Hot-Carriers by O’Keeffe, P, Catone, D, Paladini, A, Toschi, F, Turchini, S, Avaldi, L, Martelli, F, Agresti, A, Pescetelli, S, Del Rio Castillo, A. E, Bonaccorso, F, Di Carlo, A

“…Hot-carriers, that is, charge carriers with an effective temperature higher than that of the lattice, may contribute to the high power conversion efficiency…”
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Ultrafast relaxation of photoexcited superfluid He nanodroplets by Mudrich, M., LaForge, A. C., Ciavardini, A., O’Keeffe, P., Callegari, C., Coreno, M., Demidovich, A., Devetta, M., Fraia, M. Di, Drabbels, M., Finetti, P., Gessner, O., Grazioli, C., Hernando, A., Neumark, D. M., Ovcharenko, Y., Piseri, P., Plekan, O., Prince, K. C., Richter, R., Ziemkiewicz, M. P., Möller, T., Eloranta, J., Pi, M., Barranco, M., Stienkemeier, F.

“…The relaxation of photoexcited nanosystems is a fundamental process of light–matter interaction. Depending on the couplings of the internal degrees of freedom,…”
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Quantifying the sensing power of vehicle fleets by O’Keeffe, Kevin P., Anjomshoaa, Amin, Strogatz, Steven H., Santi, Paolo, Ratti, Carlo

“…Sensors can measure air quality, traffic congestion, and other aspects of urban environments. The fine-grained diagnostic information they provide could help…”
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Travel distance, frequency of return, and the spread of disease by Heine, Cate, O’Keeffe, Kevin P., Santi, Paolo, Yan, Li, Ratti, Carlo

“…Human mobility is a key driver of infectious disease spread. Recent literature has uncovered a clear pattern underlying the complexity of human mobility in…”
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Ultrafast Hydrogen Migration in Photoionized Glycine by Castrovilli, M. C, Trabattoni, A, Bolognesi, P, O’Keeffe, P, Avaldi, L, Nisoli, M, Calegari, F, Cireasa, R

“…Hydrogen migration in the glycine cation has been investigated using a combination of a short train of attosecond extreme ultraviolet pulses with…”
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Autoionization dynamics of helium nanodroplets resonantly excited by intense XUV laser pulses by Ovcharenko, Y, LaForge, A C, Langbehn, B, Plekan, O, Cucini, R, Finetti, P, O'Keeffe, P, Iablonskyi, D, Nishiyama, T, Ueda, K, Piseri, P, Di Fraia, M, Richter, R, Coreno, M, Callegari, C, Prince, K C, Stienkemeier, F, Möller, T, Mudrich, M

“…The ionization dynamics of helium droplets irradiated by intense, femtosecond extreme ultraviolet (XUV) pulses is investigated in detail by photoelectron…”
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Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting by Catone, D, Ciavardini, A, Di Mario, L, Paladini, A, Toschi, F, Cartoni, A, Fratoddi, I, Venditti, I, Alabastri, A, Proietti Zaccaria, R, O’Keeffe, P

“…In this work, we show how to control the morphology of femtosecond laser melted gold nanosphere aggregates. A careful choice of both laser fluence and…”
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Novel collective autoionization process observed in electron spectra of He clusters by Ovcharenko, Y, Lyamayev, V, Katzy, R, Devetta, M, LaForge, A, O'Keeffe, P, Plekan, O, Finetti, P, Di Fraia, M, Mudrich, M, Krikunova, M, Piseri, P, Coreno, M, Brauer, N B, Mazza, T, Stranges, S, Grazioli, C, Richter, R, Prince, K C, Drabbels, M, Callegari, C, Stienkemeier, F, Möller, T

“…The ionization dynamics of He nanodroplets irradiated with intense femtosecond extreme ultraviolet pulses of up to 1013  W/cm2 power density have been…”
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Modeling the Interplay Between Seasonal Flu Outcomes and Individual Vaccination Decisions by Papst, Irena, O’Keeffe, Kevin P., Strogatz, Steven H.

“…Seasonal influenza presents an ongoing challenge to public health. The rapid evolution of the flu virus necessitates annual vaccination campaigns, but the…”
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Sensitivity of nonlinear photoionization to resonance substructure in collective excitation by Mazza, T., Karamatskou, A., Ilchen, M., Bakhtiarzadeh, S., Rafipoor, A. J., O’Keeffe, P., Kelly, T. J., Walsh, N., Costello, J. T., Meyer, M., Santra, R.

“…Collective behaviour is a characteristic feature in many-body systems, important for developments in fields such as magnetism, superconductivity, photonics and…”
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