Search Results - "Posch, J"

Low-harmonic magnetosonic waves observed by the Van Allen Probes by Posch, J. L, Engebretson, M. J., Olson, C. N., Thaller, S. A., Breneman, A. W., Wygant, J. R., Boardsen, S. A., Kletzing, C. A., Smith, C. W., Reeves, G. D.

“…Purely compressional electromagnetic waves (fast magnetosonic waves), generated at multiple harmonics of the local proton gyrofrequency, have been observed by…”
Get full text

Van Allen probes, NOAA, GOES, and ground observations of an intense EMIC wave event extending over 12 h in magnetic local time by Engebretson, M. J., Posch, J. L., Wygant, J. R., Kletzing, C. A., Lessard, M. R., Huang, C.-L., Spence, H. E., Smith, C. W., Singer, H. J., Omura, Y., Horne, R. B., Reeves, G. D., Baker, D. N., Gkioulidou, M., Oksavik, K., Mann, I. R., Raita, T ., Shiokawa, K.

“…Although most studies of the effects of electromagnetic ion cyclotron (EMIC) waves on Earth's outer radiation belt have focused on events in the afternoon…”
Get full text

Location of intense electromagnetic ion cyclotron (EMIC) wave events relative to the plasmapause: Van Allen Probes observations by Tetrick, S. S., Engebretson, M. J., Posch, J. L., Olson, C. N., Smith, C. W., Denton, R. E., Thaller, S. A., Wygant, J. R., Reeves, G. D., MacDonald, E. A., Fennell, J. F.

“…We have studied the spatial location relative to the plasmapause (PP) of the most intense electromagnetic ion cyclotron (EMIC) waves observed on Van Allen…”
Get full text

Nighttime Magnetic Perturbation Events Observed in Arctic Canada: 1. Survey and Statistical Analysis by Engebretson, M. J., Pilipenko, V. A., Ahmed, L. Y., Posch, J. L., Steinmetz, E. S., Moldwin, M. B., Connors, M. G., Weygand, J. M., Mann, I. R., Boteler, D. H., Russell, C. T., Vorobev, A. V.

“…The rapid changes of magnetic fields associated with large, isolated magnetic perturbations with amplitudes |ΔB| of hundreds of nanotesla and 5‐ to 10‐min…”
Get full text

MMS, Van Allen Probes, GOES 13, and Ground‐Based Magnetometer Observations of EMIC Wave Events Before, During, and After a Modest Interplanetary Shock by Engebretson, M. J., Posch, J. L., Capman, N. S. S., Campuzano, N. G., Bělik, P., Allen, R. C., Vines, S. K., Anderson, B. J., Tian, S., Cattell, C. A., Wygant, J. R., Fuselier, S. A., Argall, M. R., Lessard, M. R., Torbert, R. B., Moldwin, M. B., Hartinger, M. D., Kim, H., Russell, C. T., Kletzing, C. A., Reeves, G. D., Singer, H. J.

“…The stimulation of electromagnetic ion cyclotron (EMIC) waves by a magnetospheric compression is perhaps the closest thing to a controlled experiment that is…”
Get full text

Nighttime Magnetic Perturbation Events Observed in Arctic Canada: 2. Multiple‐Instrument Observations by Engebretson, M. J., Steinmetz, E. S., Posch, J. L., Pilipenko, V. A., Moldwin, M. B., Connors, M. G., Boteler, D. H., Mann, I. R., Hartinger, M. D., Weygand, J. M., Lyons, L. R., Nishimura, Y., Singer, H. J., Ohtani, S., Russell, C. T., Fazakerley, A., Kistler, L. M.

“…The rapid changes of magnetic fields associated with nighttime magnetic perturbations with amplitudes |ΔB| of hundreds of nanoteslas and 5‐ to 10‐min periods…”
Get full text

EMIC Wave Events During the Four GEM QARBM Challenge Intervals by Engebretson, M. J., Posch, J. L., Braun, D. J., Li, W., Ma, Q., Kellerman, A. C., Huang, C.‐L., Kanekal, S. G., Kletzing, C. A., Wygant, J. R., Spence, H. E., Baker, D. N., Fennell, J. F., Angelopoulos, V., Singer, H. J., Lessard, M. R., Horne, R. B., Raita, T., Shiokawa, K., Rakhmatulin, R., Dmitriev, E., Ermakova, E.

“…This paper presents observations of electromagnetic ion cyclotron (EMIC) waves from multiple data sources during the four Geospace Environment Modeling…”
Get full text

Current applications of deep-learning in neuro-oncological MRI by Zegers, C.M.L., Posch, J., Traverso, A., Eekers, D., Postma, A.A., Backes, W., Dekker, A., van Elmpt, W.

“…•Deep learning (DL) has the potential to enhance processing and interpretation of MRI.•This review gives an overview of the use of DL in MRI for…”
Get full text

Antibiotic resistance of E. coli in sewage and sludge by Reinthaler, F.F, Posch, J, Feierl, G, Wüst, G, Haas, D, Ruckenbauer, G, Mascher, F, Marth, E

“…The aim of the study is the evaluation of resistance patterns of E. coli in wastewater treatment plants without an evaluation of basic antibiotic resistance…”
Get full text

Pc1–Pc2 waves and energetic particle precipitation during and after magnetic storms: Superposed epoch analysis and case studies by Engebretson, M. J., Lessard, M. R., Bortnik, J., Green, J. C., Horne, R. B., Detrick, D. L., Weatherwax, A. T., Manninen, J., Petit, N. J., Posch, J. L., Rose, M. C.

“…Magnetic pulsations in the Pc1–Pc2 frequency range (0.1–5 Hz) are often observed on the ground and in the Earth's magnetosphere during the aftermath of…”
Get full text

Multiple harmonic ULF waves in the plasma sheet boundary layer observed by Cluster by Engebretson, M. J., Kahlstorf, C. R. G., Posch, J. L., Keiling, A., Walsh, A. P., Denton, R. E., Broughton, M. C., Owen, C. J., Fornaçon, K.-H., Rème, H.

“…The passage of the Cluster satellites in a polar orbit through Earth's magnetotail has provided numerous observations of harmonically related Pc 1–2 ULF wave…”
Get full text

Comparison of extended-spectrum-β-lactamase (ESBL) carrying Escherichia coli from sewage sludge and human urinary tract infection by Zarfel, G., Galler, H., Feierl, G., Haas, D., Kittinger, C., Leitner, E., Grisold, A.J., Mascher, F., Posch, J., Pertschy, B., Marth, E., Reinthaler, F.F.

“…For many years, extended-spectrum-beta-lactamase (ESBL) producing bacteria were a problem mainly located in medical facilities. Within the last decade however,…”
Get full text

Multi-instrument observations from Svalbard of a traveling convection vortex, electromagnetic ion cyclotron wave burst, and proton precipitation associated with a bow shock instability by Engebretson, M. J., Yeoman, T. K., Oksavik, K., Søraas, F., Sigernes, F., Moen, J. I., Johnsen, M. G., Pilipenko, V. A., Posch, J. L., Lessard, M. R., Lavraud, B., Hartinger, M. D., Clausen, L. B. N., Raita, T., Stolle, C.

“…An isolated burst of 0.35 Hz electromagnetic ion cyclotron (EMIC) waves was observed at four sites on Svalbard from 0947 to 0954 UT 2 January 2011, roughly 1 h…”
Get full text

Probing the relationship between electromagnetic ion cyclotron waves and plasmaspheric plumes near geosynchronous orbit by Posch, J. L., Engebretson, M. J., Murphy, M. T., Denton, M. H., Lessard, M. R., Horne, R. B.

“…Plasmaspheric plumes created during disturbed geomagnetic conditions have been suggested as a major cause of increased occurrences of electromagnetic ion…”
Get full text

Temporal and spatial characteristics of Pc1 waves observed by ST5 by Engebretson, M. J., Posch, J. L., Westerman, A. M., Otto, N. J., Slavin, J. A., Le, G., Strangeway, R. J., Lessard, M. R.

“…We present the results of a study of Pc1 waves (0.2–5 Hz) recorded by the three spacecraft of NASA's Space Technology 5 (ST5) mission, which operated in a…”
Get full text

Simultaneous traveling convection vortex events and Pc1 wave bursts at cusp latitudes observed in Arctic Canada and Svalbard by Posch, J. L., Engebretson, M. J., Witte, A. J., Murr, D. L., Lessard, M. R., Johnsen, M. G., Singer, H. J., Hartinger, M. D.

“…Traveling convection vortices (TCVs), which appear in ground magnetometer records at near‐cusp latitudes as solitary ~5 mHz pulses, are a signature of…”
Get full text

Nature of Pi1B pulsations as inferred from ground and satellite observations by Lessard, M. R., Lund, E. J., Jones, S. L., Arnoldy, R. L., Posch, J. L., Engebretson, M. J., Hayashi, K.

“…The occurrence of Pi1B pulsations is well‐documented, including the fact that these pulsations can be observed both on the ground and at geosynchronous orbit…”
Get full text

Observations of two types of Pc 1–2 pulsations in the outer dayside magnetosphere by Engebretson, M. J., Peterson, W. K., Posch, J. L., Klatt, M. R., Anderson, B. J., Russell, C. T., Singer, H. J., Arnoldy, R. L., Fukunishi, H.

“…Analysis of high time resolution magnetometer data from the Polar satellite and from an array of high‐latitude ground stations in Antarctica has identified 20…”
Get full text

Emergence of carbapenem-resistant Enterobacteriaceae in Austria, 2001–2010 by Zarfel, G., Hoenigl, M., Würstl, B., Leitner, E., Salzer, H.J.F., Valentin, T., Posch, J., Krause, R., Grisold, A.J.

“…We report the emergence of carbapenem-resistant Enterobacteriaceae in Austria. Over a 10-year period, carbapenem-resistant Enterobacteriaceae isolates were…”
Get full text

Cluster observations of band-limited Pc 1 waves associated with streaming H+ and O+ions in the high-altitude plasma mantle by Engebretson, M. J., Kahlstorf, C. R. G., Murr, D. L., Posch, J. L., Keiling, A., Lavraud, B., Rème, H., Lessard, M. R., Kim, E.-H., Johnson, J. R., Dombeck, J., Grison, B., Robert, P., Glassmeier, K.-H., Décréau, P. M. E.

“…Bursts of band‐limited Pc 1 waves (0.2 to ∼1.0 Hz) with normalized frequency f/fH+∼ 0.5 have been observed by the Cluster spacecraft during many passes through…”
Get full text