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302 results on '"Smith, Joseph R."'

1. Intensity and Dimensionality-Dependent Dynamics of Laser-Proton Acceleration in 1D, 2D, and 3D Particle-in-Cell Simulations

Author

Daneshmand, Lillian A., Aszalos, Madeline, Feister, Scott, and Smith, Joseph R.

Subjects
Physics - Plasma Physics
Abstract

Due to the high computational cost of 3D particle-in-cell (PIC) simulations, lower-dimensional (2D or 1D) simulations are frequently used in their place. Our work shows that when modeling high-intensity laser ion acceleration, simulation dimensionality interfaces with laser intensity in the dynamics of ion acceleration at every step of the process, from laser absorption through particle acceleration. We expand on previous studies by comparing the behavior of 1D and 2D simulations (of different polarization) with 3D PIC simulations at high resolutions across five orders of magnitude of laser intensity, enabling us to study multiple regimes of laser-proton acceleration. We find that key output metrics such as maximum proton energy depend on a complex interplay of both simulation dimensionality and laser intensity regime. Differences between simulation predictions generally increase for higher laser intensity regimes, making 3D simulations especially important for quantitative predictions of next-generation laser experiments., Comment: 9 pages, 7 figures, 1 table

Published
2024

2. Particle-In-Cell Code Comparison for Ion Acceleration: EPOCH and Smilei

Author

Banerjee, Soham, Smith, Joseph R., and Orban, Chris

Subjects
Physics - Plasma Physics
Abstract

Particle-in-Cell (PIC) codes are a popular tool to model laser-plasma interactions. Many different PIC codes already exist, and many new PIC codes are being developed constantly. It is therefore important to compare different PIC codes to ascertain which code is best suited for a particular kind of physical problem. In a paper by Smith et al. (2021) they compared three different codes on a problem relating to proton acceleration in the Target Normal Sheath Acceleration regime from a normal incidence ultra-intense laser pulse. Smith et al. (2021) included in their study the widely used EPOCH code. However, they did not include results from the Smilei code, which is another popular PIC code in the plasma community with a variety of features and physics packages. In the present work, we compare the Smilei code to the EPOCH code for the same test case as Smith et al. (2021). Broadly we find the two codes to be highly consistent with agreement in total ion, electron, and field energy at a percent level or better. The electron and ion energy distribution functions agree well at lower energies and the differences at higher energies (e.g. because of the finite number of macroparticles) are similar to what Smith et al. (2021) saw for other codes. We found that Smilei consumed 25% more RAM than EPOCH did but the execution time was 30% less for Smilei on one processor. We include the input files to encourage future comparisons., Comment: 10 pages, 5 figures

Published
2023

3. Applying Machine Learning Methods to Laser Acceleration of Protons: Lessons Learned from Synthetic Data

Author

Desai, Ronak, Zhang, Thomas, Oropeza, Ricky, Felice, John J., Smith, Joseph R., Kryshchenko, Alona, Orban, Chris, Dexter, Michael L., and Patnaik, Anil K.

Subjects
Physics - Plasma Physics, Physics - Computational Physics, Physics - Data Analysis, Statistics and Probability
Abstract

Researchers in the field of ultra-intense laser science are beginning to embrace machine learning methods. In this study we consider three different machine learning methods -- a two-hidden layer neural network, Support Vector Regression and Gaussian Process Regression -- and compare how well they can learn from a synthetic data set for proton acceleration in the Target Normal Sheath Acceleration regime. The synthetic data set was generated from a previously published theoretical model by Fuchs et al. 2005 that we modified. Once trained, these machine learning methods can assist with efforts to maximize the peak proton energy, or with the more general problem of configuring the laser system to produce a proton energy spectrum with desired characteristics. In our study we focus on both the accuracy of the machine learning methods and the performance on one GPU including the memory consumption. Although it is arguably the least sophisticated machine learning model we considered, Support Vector Regression performed very well in our tests., Comment: new section with an optimization task, updated references

Published
2023

4. A Smartphone-Based Virtual Reality Plotting System for STEM Education

Author

Smith, Joseph R., Snapp, Bart, Madar, Savva, Brown, Jonathan R., Fowler, Jim, Andersen, Maeve, Porter, Christopher D., and Orban, Chris

Abstract

We present a free student-facing tool for creating 3D plots and smartphone-based virtual reality (VR) visualizations for STEM courses. Visualizations are created through an in-browser interface using simple plotting commands. Then QR codes are generated, which can be interpreted with a free smartphone app, requiring only an inexpensive Google Cardboard compatible viewer. Example uses for math, physics, chemistry, and other STEM fields are presented, including a project-based assignment for calculus courses at The Ohio State University. The platform enables students, educators, and researchers to create stereoscopic VR visualizations on multiple platforms without needing to learn a complete VR development system.

Published
2023
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5. A Particle-In-Cell Code Comparison for Ion Acceleration: EPOCH, LSP, and WarpX

Author

Smith, Joseph R., Orban, Chris, Rahman, Nashad, McHugh, Brendan, Oropeza, Ricky, and Chowdhury, Enam A.

Subjects
Physics - Plasma Physics
Abstract

There are now more Particle-in-Cell (PIC) codes than ever before that researchers use to simulate intense laser-plasma interactions. To date, there have been relatively few direct comparisons of these codes in the literature, especially for relativistic intensity lasers interacting with thin overdense targets. To address this we perform a code comparison of three PIC codes: EPOCH, LSP, and WarpX for the problem of laser-driven ion acceleration in a 2D(3v) geometry for a $10^{20}$ W cm$^{-2}$ intensity laser. We examine the plasma density, ion energy spectra, and laser-plasma coupling of the three codes and find strong agreement. We also run the same simulation 20 times with different random seeds to explore statistical fluctuations of the outputs. We then compare the execution times and memory usage of the codes (without "tuning" to improve performance) using between 1 and 48 processors on one node. We provide input files to encourage larger and more frequent code comparisons in this field., Comment: 7 pages, 6 figures

Published
2021
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6. Particle-in-Cell modeling of a potential demonstration experiment for double pulse enhanced target normal sheath acceleration

Author

Rahman, Nashad, Smith, Joseph R., Ngirmang, Gregory, and Orban, Chris

Subjects
Physics - Plasma Physics
Abstract

Ultra intense lasers are a promising source of energetic ions for various applications. An interesting approach described in Ferri et al. 2019 argues from Particle-in-Cell simulations that using two laser pulses of half energy (half intensity) arriving with close to 45 degrees angle of incidence is significantly more effective at accelerating ions than one pulse at full energy (full intensity). For a variety of reasons, at the time of this writing there has not yet been a true experimental confirmation of this enhancement. In this paper we perform 2D Particle-in-Cell simulations to examine if a milliJoule class, 5x10^18 W cm^-2 peak intensity laser system could be used for such a demonstration experiment. Laser systems in this class can operate at a kHz rate which should be helpful for addressing some of the challenges of performing this experiment. Despite investigating a 3.5 times lower intensity than Ferri et al. 2019 did, we find that the double pulse approach enhances the peak proton energy and the energy conversion to protons by a factor of about three compared to a single laser pulse with the same total laser energy. We also comment on the nature of the enhancement and describe simulations that examine how the enhancement may depend on the spatial or temporal alignment of the two pulses., Comment: 11 pages, 9 figures

Published
2021
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7. Optimizing Laser-Plasma Interactions for Ion Acceleration using Particle-in-Cell Simulations and Evolutionary Algorithms

Author

Smith, Joseph R., Orban, Chris, Morrison, John T., George, Kevin M., Ngirmang, Gregory K., Chowdhury, Enam A., and Roquemore, W. Mel

Subjects
Physics - Plasma Physics
Abstract

The development of ultra-intense laser-based sources of high energy ions is an important goal, with a variety of potential applications. One of the barriers to achieving this goal is the need to maximize the conversion efficiency from laser energy to ion energy. We apply a new approach to this problem, in which we use an evolutionary algorithm to optimize conversion efficiency by exploring variations of the target density profile with thousands of one-dimensional particle-in-cell (PIC) simulations. We then compare this "optimal" target identified by the one-dimensional PIC simulations to more conventional choices, such as with an exponential scale length pre-plasma, with fully three-dimensional PIC simulations. The optimal target outperforms the conventional targets in terms of maximum ion energy by 20% and show a significant enhancement of conversion efficiency to high energy ions. This target geometry enhances laser coupling to the electrons, while still allowing the laser to strongly reflect from an effectively thin target. These results underscore the potential for this statistics-driven approach to guide research into optimizing laser-plasma simulations and experiments., Comment: 17 pages, 7 figures

Published
2020
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8. Using Virtual Reality in Electrostatics Instruction: The Impact of Training

Author

Porter, Chris D., Smith, Joseph R. H., Stagar, Eric M., Simmons, Amber, Nieberding, Megan, Brown, Jonathan R., Ayers, Abigail, and Orban, Chris M.

Subjects
Physics - Physics Education
Abstract

Recent years have seen a resurgence of interest in using Virtual Reality (VR) technology to benefit instruction, especially in physics and related subjects. As VR devices improve and become more widely available, there remains a number of unanswered questions regarding the impact of VR on student learning and how best to use this technology in the classroom. On the topic of electrostatics, for example, a large, controlled, randomized study performed by Smith et al. 2017\cite{smith17}, found that VR-based instruction had an overall negligible impact on student learning compared to videos or images. However, they did find a strong trend for students who reported frequent video game play to learn better from VR than other media. One possible interpretation of this result is that extended videogame play provides a kind of "training" that enables a student to learn more comfortably in the virtual environment. In the present work we consider if a VR training activity that is unrelated to electrostatics can help prepare students to learn electrostatics from subsequent VR instruction. We find that preliminary VR training leads to a small but statistically significant improvement in student performance on our electrostatics assessment. We also find that student reported game play is still correlated with higher scores on this metric., Comment: 22 pages, 9 figures, minor changes compared to earlier version including one new figure

Published
2020
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9. Experimental observation and computational modeling of radial Weibel instability in high intensity laser-plasma interactions

Author

Ngirmang, Gregory K., Morrison, John T., George, Kevin M., Smith, Joseph R., Frische, Kyle D., Orban, Chris, Chowdhury, Enam A., and Roquemore, W. Mel

Subjects
Physics - Plasma Physics
Abstract

When a relativistic intensity laser interacts with the surface of a solid density target, suprathermal electron currents are subject to Weibel instability filamentation when propagating through the thermal population of the bulk target. We present time resolved shadowgraphy of radial ionization front expansion and Weibel instability filamentation within a thin, sub-micron, sheet initiated by irradiation with a short pulse, high intensity laser. High temporal (100 fs) and spatial (1 $\mu$m) resolution shadowgraphy of the interaction reveals a relativistic expansion of the ionization front within a 120 $\mu$m diameter region surrounding the laser-target interaction, corroborated by simulations to expand at $0.77c$, where $c$ is the speed of light. Filamentation within the patch persists for several picoseconds and seeds the eventual recombination and heating dynamics on the nanosecond timescale. Particle-in-cell simulations were conducted to elucidate the electron dynamics leading to the radial expansion of the critical surface. Computational results report the ionization expansion is due to field ionization of the expanding hot electron population. Filamentation within the expansion is due to the Weibel instability which is supported by the magnetic fields present., Comment: 10 pages, 5 figures. Comments welcome

Published
2019

10. A controlled study of virtual reality in first-year magnetostatics

Author

Porter, Chris D., Brown, Jonathan, Smith, Joseph R., Simmons, Amber, Nieberding, Megan, Ayers, Abigail E., and Orban, Chris

Subjects
Physics - Physics Education
Abstract

Stereoscopic virtual reality (VR) has experienced a resurgence due to flagship products such as the Oculus Rift, HTC Vive and smartphone-based VR solutions like Google Cardboard. This is causing the question to resurface: how can stereoscopic VR be useful in instruction, if at all, and what are the pedagogical best practices for its use? To address this, and to continue our work in this sphere, we performed a study of 289 introductory physics students who were sorted into three different treatment types: stereoscopic virtual reality, WebGL simulation, and static 2D images, each designed to provide information about magnetic fields and forces. Students were assessed using preliminary items designed to focus on heavily-3D systems. We report on assessment reliability, and on student performance. Overall, we find that students who used VR did not significantly outperform students using other treatment types. There were significant differences between sexes, as other studies have noted. Dependence on students' self-reported 3D videogame play was observed, in keeping with previous studies, but this dependence was not restricted to the VR treatment., Comment: 6 pages, 4 figures, submitted to the 2019 Physics Education Research Conference

Published
2019
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11. Particle-in-Cell Simulations of Density Peak Formation and Ion Acceleration from Short Pulse Laser-Driven Ponderomotive Steepening

Author

Smith, Joseph R., Orban, Chris, Ngirmang, Gregory K., Morrison, John T., George, Kevin M., Chowdhury, Enam A., and Roquemore, W. M.

Subjects
Physics - Plasma Physics
Abstract

We use particle-in-cell (PIC) simulations and simple analytic models to investigate the laser-plasma interaction known as ponderomotive steepening. When normally incident laser light reflects at the critical surface of a plasma, the resulting standing electromagnetic wave modifies the electron density profile via the ponderomotive force, which creates peaks in the electron density separated by approximately half of the laser wavelength. What is less well studied is how this charge imbalance accelerates ions towards the electron density peaks, modifying the ion density profile of the plasma. Idealized PIC simulations with an extended underdense plasma shelf are used to isolate the dynamics of ion density peak growth for a 42 fs pulse from an 800 nm laser with an intensity of 10$^{18}$ W cm$^{-2}$. These simulations exhibit sustained longitudinal electric fields of 200 GV m$^{-1}$, which produce counter-steaming populations of ions reaching a few keV in energy. We compare these simulations to theoretical models, and we explore how ion energy depends on factors such as the plasma density and the laser wavelength, pulse duration, and intensity. We also provide relations for the strength of longitudinal electric fields and an approximate timescale for the density peaks to develop. These conclusions may be useful investigating the phenomenon of ponderomotive steepening as advances in laser technology allow shorter and more intense pulses to be produced at various wavelengths. We also discuss the parallels with other work studying the interference from two counter-propagating laser pulses., Comment: 11 pages, 8 figures, 1 table

Published
2019
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12. A Hybrid Approach for Using Programming Exercises in Introductory Physics

Author

Orban, Chris, Teeling-Smith, Richelle M., Smith, Joseph R. H., and Porter, Chris D.

Subjects
Physics - Physics Education
Abstract

Incorporating computer programming exercises into introductory physics is a delicate task that involves a number of choices that may have an effect on student learning. We present a "hybrid" approach that speaks to a number of common concerns regarding cognitive load which arise when using programming exercises in introductory physics classes where many students are absolute beginner programmers. This "hybrid" approach provides the student with a highly interactive web-based visualization, not unlike a PhET or Physlet interactive, but importantly the student is shown only the subset of the code where the initial conditions are set and the system variables are evolved. We highlight results from a coding activity that resembles the classic game Asteroids. The goals of this activity are to show how a simple 1D code can be modified into a 2D code, and to reinforce ideas about the relationship between force, velocity, and acceleration vectors. Survey results from four semesters of introductory physics classes at the Ohio State University's Marion campus, in which a high percentage of the students are weak or absolute beginner programmers, provide evidence that most students can complete coding tasks without severe difficulty. Other survey results are promising for future work where conceptual learning will be assessed in a direct way using metrics like the Animated Force Concept Inventory (Dancy & Beichner 2006). The exercise highlighted here and others from our group are available for general use at http://compadre.org/PICUP, Comment: 9 pages, 4 figures, this article supercedes arxiv:1701.01867

Published
2018
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13. A controlled study of stereoscopic virtual reality in freshman electrostatics

Author

Smith, Joseph R., Byrum, Amber, McCormick, Timothy M., Young, Nick, Orban, Chris, and Porter, Chris D.

Subjects
Physics - Physics Education
Abstract

Virtual reality (VR) has long promised to revolutionize education, but with little follow-through. Part of the reason for this is the prohibitive cost of immersive VR headsets or caves. This has changed with the advent of smartphone-based VR (along the lines of Google cardboard) which allows students to use smartphones and inexpensive plastic or cardboard viewers to enjoy stereoscopic VR simulations. We have completed the largest-ever such study on 627 students enrolled in calculus-based freshman physics at The Ohio State University. This initial study focused on student understanding of electric fields. Students were split into three treatments groups: VR, video, and static 2D images. Students were asked questions before, during, and after treatment. Here we present a preliminary analysis including overall post-pre improvement among the treatment groups, dependence of improvement on gender, and previous video game experience. Results on select questions are discussed. Several electric field visualizations similar to those used in this study are freely available on Google Play http://go.osu.edu/BuckeyeVR, Comment: 4 pages, 4 figures, 2 tables. Submitted to PERC 2017

Published
2017

14. A Game-Centered, Interactive Approach for Using Programming Exercises in Introductory Physics

Author

Orban, Chris, Porter, Chris, Smith, Joseph R. H., Brecht, Nash K., Britt, Chris A., Teeling-Smith, Richelle M., and Harper, Kathy A.

Subjects
Physics - Physics Education
Abstract

Incorporating computer programming exercises in introductory physics is a delicate task that involves a number of choices that may have a strong affect on student learning. We present an approach that speaks to a number of common concerns that arise when using programming exercises in introductory physics classes where most students are absolute beginner programmers. These students need an approach that is (1) simple, involving 75 or fewer lines of well-commented code, (2) easy to use, with browser-based coding tools, (3) interactive, with a high frame rate to give a video-game like feel, (4) step-by-step with the ability to interact with intermediate stages of the "correct" program and (5) thoughtfully integrated into the physics curriculum, for example, by illustrating velocity and acceleration vectors throughout. We present a set of hour-long activities for classical mechanics that resemble well-known games such as "asteroids", "lunar lander" and "angry birds". Survey results from the first activity from four semesters of introductory physics classes at OSU in which a high percentage of the students are weak or absolute beginner programmers seems to confirm that the level of difficulty is appropriate for this level and that the students enjoy the activity. These exercises are available for general use at http://compadre.org/PICUP In the future we plan to assess conceptual knowledge using an animated version of the Force Concept Inventory originally developed by M. Dancy., Comment: Most recent version now includes student survey data from four semesters!

Published
2017

15. Relativistic electron acceleration by mJ-class kHz lasers normally incident on liquid targets

Author

Feister, Scott, Austin, Drake R., Morrison, John T., Frische, Kyle D., Orban, Chris, Ngirmang, Gregory, Handler, Abraham, Smith, Joseph R. H., Schillaci, Mark, LaVerne, Jay A., Chowdhury, Enam A., Freeman, R. R., and Roquemore, W. M.

Subjects
Physics - Plasma Physics
Abstract

We report observation of kHz-pulsed-laser-accelerated electron energies up to 3 MeV in the -$k_\text{laser}$ (backward) direction from a 3 mJ laser interacting at normal incidence with a solid density, flowing-liquid target. The electrons/MeV/s.r. >1 MeV recorded here using a mJ-class laser exceeds or equals that of prior super-ponderomotive electron studies employing lasers at lower repetition-rates and oblique incidence. Focal intensity of the 40-fs-duration laser is 1.5 $\cdot$ 10$^{18}$ W cm$^{-2}$, corresponding to only ~80 keV electron ponderomotive energy. Varying laser intensity confirms electron energies in the laser-reflection direction well above what might be expected from ponderomotive scaling in normal-incidence laser-target geometry. This direct, normal-incidence energy spectrum measurement is made possible by modifying the final focusing off-axis-paraboloid (OAP) mirror with a central hole that allows electrons to pass, and restoring laser intensity through adaptive optics. A Lanex-based, optics-free high-acquisition rate (>100 Hz) magnetic electron-spectrometer was developed for this study to enable shot-to-shot statistical analysis and real-time feedback, which was leveraged in finding optimal pre-plasma conditions. 3D Particle-in-cell simulations of the interaction show qualitative super-ponderomotive spectral agreement with experiment. The demonstration of a high-repetition-rate, high-flux source containing >MeV electrons from a few-mJ, 40 fs laser and a simple liquid target encourages development of future $\geq$kHz-repetition, fs-duration electron-beam applications., Comment: 16 pages, 6 figures. Accepted for publication in Optics Express

Published
2015

17. Detailed Characterization of a kHz-rate Laser-Driven Fusion at a Thin Liquid Sheet with a Neutron Detection Suite

Author

Knight, Benjamin M., primary, Gautam, Connor M., additional, Stoner, Colton R., additional, Egner, Bryan V., additional, Smith, Joseph R., additional, Orban, Christopher M., additional, Manfredi, Juan J., additional, Frische, Kyle D., additional, Dexter, Michael L., additional, Chowdhury, Enam A., additional, and Patnaik, Anil K., additional

Published
2023
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32. Detailed characterization of kHz-rate laser-driven fusion at a thin liquid sheet with a neutron detection suite

Author

Knight, Benjamin M., Gautam, Connor M., Stoner, Colton R., Egner, Bryan V., Smith, Joseph R., Orban, Chris M., Manfredi, Juan J., Frische, Kyle D., Dexter, Michael L., Chowdhury, Enam A., and Patnaik, Anil K.

Abstract

AbstractWe present detailed characterization of laser-driven fusion and neutron production ( $\sim {10}^5$ /second) using 8 mJ, 40 fs laser pulses on a thin (<1 μm) D ${}_2$ O liquid sheet employing a measurement suite. At relativistic intensity ( $\sim 5\times {10}^{18}$ W/cm ${}^2$ ) and high repetition rate (1 kHz), the system produces deuterium–deuterium (D-D) fusion, allowing for consistent neutron generation. Evidence of D-D fusion neutron production is verified by a measurement suite with three independent detection systems: an EJ-309 organic scintillator with pulse-shape discrimination, a ${}^3\mathrm{He}$ proportional counter and a set of 36 bubble detectors. Time-of-flight analysis of the scintillator data shows the energy of the produced neutrons to be consistent with 2.45 MeV. Particle-in-cell simulations using the WarpX code support significant neutron production from D-D fusion events in the laser–target interaction region. This high-repetition-rate laser-driven neutron source could provide a low-cost, on-demand test bed for radiation hardening and imaging applications.

Published
2024
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35. Contributors

Author

Acosta, Frank L., primary, Adelson, P. David, additional, Adler, ., John R., additional, Aghayev, Kamran V., additional, Aghi, Manish K., additional, Agrawal, Basheal M., additional, Ahluwalia, Manmeet S., additional, Ahmad, Faiz, additional, Air, Ellen, additional, Ajler, Pablo, additional, Albuquerque, Felipe C., additional, Amar, Arun P., additional, Amendola, Luca, additional, Ames, Christopher, additional, Amin, Beejal Y., additional, Amin-Hanjani, Sepideh, additional, Ammerman, Joshua M., additional, Anderson, William S., additional, Apfelbaum, Ronald I., additional, Apuzzo, Michael L.J., additional, Armonda, Rocco, additional, Arnold, Paul M., additional, Arzi, Harel, additional, Asthagiri, Ashok R., additional, Auguste, Kurtis, additional, Awad, Tariq E., additional, Aziz, Khaled M., additional, Aziz, Tipu, additional, Baehring, Joachim M., additional, Baig, Mirza N., additional, Bakay, Roy, additional, Ball, Perry A., additional, Bandiera, Stefano, additional, Barbaro, Nicholas M., additional, Barker, Frederick G., additional, Barrow, Daniel L., additional, Batra, Sachin, additional, Bederson, Joshua, additional, Bekelis, Kimon, additional, Bellabarba, Carlo, additional, Bello, Lorenzo, additional, Belzberg, Allan J., additional, Bendok, Bernard R., additional, Benes, Ludwig, additional, Benzel, Edward C., additional, Bertalanffy, Helmut, additional, Bettegowda, Chetan, additional, Bhatia, Ravi, additional, Bhatia, Sanjay, additional, Bishop, Allen T., additional, Black, Keith L., additional, Blevins, Lewis S., additional, Blike, George T., additional, Blitz, Ari, additional, Blomstedt, Göran C., additional, Blondel, Benjamin, additional, Boahene, Kofi, additional, Boleaga, Bernardo, additional, Bookland, Markus, additional, Boriani, Stefano, additional, Boxell, Christopher M., additional, Brem, Henry, additional, Bricolo, Albino, additional, Brodkey, Jason A., additional, Brotchi, Jacques, additional, Bruce, Jeffrey N., additional, Bruneau, Michael, additional, Buchbinder, Bradley R., additional, Burchiel, Kim J., additional, Burke, Timothy G., additional, Bydon, Ali, additional, Cacciola, Francesco, additional, Cahill, Kevin, additional, Cappabianca, Paolo, additional, Caputy, Anthony J., additional, Cardinale, Francesco, additional, Carrau, Ricardo L., additional, Carson, Benjamin S., additional, Carter, Bob S., additional, Casaceli, Giuseppe, additional, Castana, Laura, additional, Castillo, Gabriel, additional, Cavallo, Luigi M., additional, Cawley, C. Michael, additional, Chakraborty, Aabir, additional, Chang, Edward F., additional, Chang, Eric C., additional, Chang, Steven D., additional, Chapman, Jens R., additional, Chappell, E. Thomas, additional, Chaudhary, Neeraj, additional, Chen, Douglas, additional, Chen, James, additional, Chen, Linda C., additional, Cheng, Boyle C., additional, Chern, Joshua J., additional, Chi, John H., additional, Chien, Wade W., additional, Chiocca, E. Antonio, additional, Chitale, Rohan, additional, Chitnavis, Bhupal, additional, Christiano, Lana D., additional, Chu, Ray M., additional, Ciceri, Elisa F., additional, Clarke, Michelle J., additional, Cohen, Alan, additional, Colao, Annamaria, additional, Colby, Geoffrey P., additional, Collice, Massimo, additional, Condit, Daniel, additional, Coon, Alexander L., additional, Corrêa Dos Reis, Cassius Vinícius, additional, Cosgrove, G. Rees, additional, Cossu, Massimo, additional, Couldwell, William T., additional, Curry, William T., additional, Dabus, Guilherme, additional, Dagi, Teodoro Forcht, additional, D'Aliberti, Giuseppe, additional, Danielpour, Moise, additional, Dannenbaum, Mark J., additional, Dardis, Ronan M., additional, Dasenbrock, Hormuzdiyar H., additional, Dashti, Reza, additional, Day, Arthur L., additional, Day, John Diaz, additional, Deletis, Vedran, additional, Del-Valle, Ramiro, additional, DeMonte, Franco, additional, Dimeco, Francesco, additional, Dodd, Robert, additional, Doglietto, Francesco, additional, Dörner, Lutz, additional, Dorsi, Michael J., additional, Doumit, Gaby D., additional, Drake, James M., additional, Drazin, Doniel, additional, Du, Rose, additional, Ducker, Thomas B., additional, Duffau, Hugues, additional, Duhon, Bradley S., additional, Eboli, Paula, additional, Elhammady, Mohamed Samy, additional, Ely, Pamela, additional, Epstein, Nancy E., additional, Erkmen, Kadir, additional, Errico, Thomas, additional, Eskandar, Emad N., additional, Eskey, Clifford J., additional, Esposito, Felice, additional, Fadul, Camilo E., additional, Fanciullo, Gilbert J., additional, Fargen, Kyle M., additional, Felsen, Gidon, additional, Feng, Dong Xia, additional, Fessler, Richard G., additional, Filler, Aaron G., additional, Flickinger, John C., additional, Floyd, John R., additional, Foley, Kevin T., additional, Fountas, Kostas N., additional, Francis, Howard, additional, Frazier, James L., additional, Frerichs, Kai, additional, Frim, David M., additional, Froelich, Sebastien, additional, Fukushima, Takanori, additional, Gailloud, Philippe, additional, Gaini, Sergio Maria, additional, Gandhi, Chirag D., additional, Gandhi, Dheeraj, additional, Gardner, Gale, additional, Gardner, Paul, additional, Garrett, Mark, additional, Garzón-Muvdi, Tomás, additional, Gasbarrini, Alessandro, additional, Geisler, Fred H., additional, Gemmete, Joseph J., additional, Gerosa, Massimo, additional, Goel, Atul, additional, Gokaslan, Ziya L., additional, Gonzalez, L. Fernando, additional, Goodwin, C. Rory, additional, Goto, Takeo, additional, Gould, Grahame C., additional, Grady, M. Sean, additional, Grande, Andrew W., additional, Grandhi, Ramesh, additional, Green, Alexander L., additional, Greenfield, Jeffrey P., additional, Gross, Bradley A., additional, Grossman, Rachel, additional, Groves, Mari, additional, Guinto, Gerardo, additional, Gullan, Richard, additional, Gupta, Gaurav, additional, Gupta, Nalin, additional, Hankinson, Todd C., additional, Hansasuta, Ake, additional, Harrop, James S., additional, Harsh, Griffith R., additional, Hdeib, Alia, additional, Heinze, Stefan, additional, Heiss, John, additional, Hellwig, Dieter, additional, Hernesniemi, Juha, additional, Heros, Roberto C., additional, Hillman, Todd, additional, Hinojosa, Jose, additional, Hiremath, Girish K., additional, Hoh, Brian L., additional, Hopkins, L. Nelson, additional, Hsu, Wesley, additional, Hu, Yin C., additional, Huang, Jason H., additional, Huang, Judy, additional, Hutchinson, Peter J., additional, Hyam, Jonathan A., additional, Ioachimescu, Adriana G., additional, Jabbour, Pascal M., additional, Jackson, Juan, additional, Jallo, George I., additional, Janecka, Ivo P., additional, Javadpour, Mohsen, additional, Jea, Andrew, additional, Jeswani, Sunil, additional, Jho, David H., additional, Jho, Diana H., additional, Jho, Hae-Dong, additional, Jiang, Bowen, additional, Jung, Tae-Young, additional, Kalani, M. Yashar S., additional, Kano, Hideyuki, additional, Kapadia, Silloo B., additional, Kaplitt, Michael G., additional, Kappus, Christoph, additional, Kapsalaki, Eftychia Z., additional, Karmon, Yuval, additional, Kassam, Amin B., additional, Kathuria, Sudhir, additional, Kawase, Takeshi, additional, Khalessi, Alexander A., additional, Khu, Kathleen, additional, Kim, Daniel H., additional, Kirsch ., Matthias, additional, Kivisaari, Riku, additional, Kolias, Angelos G., additional, Kondziolka, Douglas, additional, Korinth, Marcus C, additional, Krex, Dietmar, additional, Krieger, Mark D., additional, Krishnan, Kartik G., additional, Krishnaney, Ajit A., additional, Lacy, Maureen, additional, Lad, Santosh D., additional, Landeiro, Jose Alberto, additional, Lang, Frederick F., additional, Lang, Shih-Shan, additional, LaPierre, Françoise, additional, Larson, Paul S., additional, Lawton, Michael T., additional, Lee, Marco, additional, Lehecka, Martin, additional, Levi, Allan, additional, Levy, Elad I., additional, Lieberson, Robert E., additional, Lim, Michael, additional, Lin, Ning, additional, Lind, Göran, additional, Linderoth, Bengt, additional, Lindley, Timothy, additional, Listrat, Antoine, additional, Liu, Charles Y., additional, Liu, James K., additional, Liu, John C., additional, Lo Russo, Giorgio, additional, Loftus, Christopher M., additional, Lonser, Russell R., additional, Lu, Daniel C., additional, Lu, Yi, additional, Lunsford, L. Dade, additional, Macenski, M. Mason, additional, Maciaczyk, Jaroslaw, additional, Madsen, Joseph R., additional, Magge, Subu N., additional, Maira, Giulio, additional, Malessy, Martijn J.A., additional, Malone, David G., additional, Maniker, Allen, additional, Manley, Geoffrey T., additional, Manwaring, Jotham, additional, Martineau, Mitchell, additional, Martuza, Robert L., additional, Mathews, Marlon S., additional, Mathioudakis, Nestoras, additional, McCormick, Paul, additional, McDermott, Michael W., additional, McDougall, Cameron G., additional, Mehdorn, H. Maximilian, additional, Mehta, Vivek A., additional, Menezes, Arnold, additional, Mertens, Patrick, additional, Meyer, Frederic B., additional, Mian, Matthew K., additional, Midha, Rajiv, additional, San Millán Ruíz, Diego, additional, Miller, Jonathan, additional, Miller, Neil R., additional, Mirzadeh, Zaman, additional, Mishra, Ganpati Prasad, additional, Missios, Symeon, additional, Mitchell, James B., additional, Mitha, Alim, additional, Mocco, J., additional, Moghekar, Abhay, additional, Morcos, Jacques J., additional, Morgan, Chad J., additional, Morrison, John F., additional, Moyle, Henry, additional, Muh, Carrie R., additional, Mukherjee, Debraj, additional, Nabavi, Arya, additional, Nanaszko, Michael J., additional, Nandi, Dipankar, additional, Narayan, Raj, additional, Natarajan, Sabareesh K., additional, Nathal, Edgar, additional, Nayar, Vikram V., additional, Netalkar, Audumbar Shantaram, additional, Newman, C. Benjamin, additional, Nguyen, Trang, additional, Ngwenya, Laura B., additional, Nicolato, Antonio, additional, Niemelä, Mika, additional, Nikkhah, Guido, additional, Nimmagadda, Anitha, additional, Niparko, John K., additional, Niranjan, Ajay, additional, North, Richard B., additional, Núñez, José María, additional, Oakes, W. Jerry, additional, Ogilvy, Christopher S., additional, Ohata, Kenji, additional, Ojemann, Jeffrey G., additional, Ojemann, Steven, additional, Okonkwo, David O., additional, Oldfield, Edward H., additional, O'Neill, Brent, additional, Oyesiku, Nelson M., additional, Pallini, Roberto, additional, Pandey, Aditya S., additional, Pang, Dachling, additional, Papadimitriou, Kyriakos, additional, Pascual, José María, additional, Patel, Aman, additional, Patel, Anoop P., additional, Patel, Toral R., additional, Paterno, Vincenzo, additional, Patir, Rana, additional, Paul, Alexandra R., additional, Pawar, Sanjay J., additional, Penn, Richard, additional, Pereira, Erlick A.C., additional, Perez-Cruet, Mick J., additional, Peterson, Eric C., additional, Pichelmann, Mark A., additional, Piepmeier, Joseph M., additional, Pinsker, Marcus O., additional, Pitts, Lawrence H., additional, Placide, Rick J., additional, Pondaag, Willem, additional, Post, Kalmon, additional, Potts, Matthew B., additional, Poulsgaard, Lars, additional, Pradilla, Gustavo, additional, Prestigiacomo, Charles J., additional, Prevedello, Daniel M., additional, Prieto, Ruth, additional, Quiñones-Hinojosa, Alfredo, additional, Quintana, Leonidas M., additional, Rahimi, Scott Y., additional, Rahme, Rudy J., additional, Ramos-Zúñiga, Rodrigo, additional, Ranalli, Nathan J., additional, Raza, Shaan M., additional, Recinos, Pablo F., additional, Recinos, Violette Renard, additional, Rege, Shrikant, additional, Reithmeier, Thomas, additional, Relyea, Katherine, additional, Resnick, Daniel, additional, Rigamonti, Daniele, additional, Rigoard, Philippe, additional, Rinne, Jaakko, additional, Robertson, Jon H., additional, Rochkind, Shimon, additional, Rock, Jack P., additional, Romani, Rossana, additional, Rosenthal, Guy, additional, Rosenwasser, Robert H., additional, Rowland, Nathan C., additional, Rutka, James T., additional, Ryu, Samuel, additional, Sala, Francesco, additional, Salvatori, Roberto, additional, Sammalkorpi, Kari, additional, Sanai, Nader, additional, Santarius, Thomas, additional, Saxena, Amar, additional, Schackert, Gabriele, additional, Schick, Uta, additional, Schildhauer, Thomas A., additional, Schmidek, Alexandra, additional, Schmidek, Henry H., additional, Schmidt, Meic H., additional, Schmitt, Paul, additional, Schramm, Johannes, additional, Schwab, Joseph, additional, Schwartz, Theodore H., additional, Schweder, Patrick, additional, Sciubba, Daniel M., additional, Scott, R. Michael, additional, Sekula, Raymond F., additional, Senatus, Patrick, additional, Shad, Amjad, additional, Shaibani, Ali, additional, Sharma, Manish S., additional, Sharma, Rewati Raman, additional, Sheth, Sameer A., additional, Shin, Alexander Y., additional, Shirzadi, Ali, additional, Siddiqui, Adnan H., additional, Silveira, Roberto Leal, additional, Simmons, Nathan E., additional, Sindou, Marc, additional, Sinisi, Marco, additional, Siu, Timothy, additional, Smith, Edward, additional, Smith, Joseph R., additional, Smith, Patricia, additional, Smyth, Matthew, additional, Solari, Domenico, additional, Solomon, David, additional, Sonabend, Adam M., additional, Souweidane, Mark M., additional, Spagnuolo, Edgardo, additional, Spetzler, Robert F., additional, Spinner, Robert J., additional, Stark, Andreas M., additional, Starr, Philip A., additional, Steiner, Ladislau, additional, Steinmetz, Michael P., additional, Stiver, Shirley I., additional, Subramanian, Prem, additional, Sughrue, Michael E., additional, Suk, Ian, additional, Sun, Daniel Q., additional, Sure, Ulrich, additional, Szentirmai, Oszkar, additional, Taghva, Alexander, additional, Talamonti, Giuseppe, additional, Tamargo, Rafael J., additional, Teff, Richard J., additional, Tew, John M., additional, Theodore, Nicholas, additional, Theodosopoulos, Philip V., additional, Thompson, B. Gregory, additional, Tirakotai, Wuttipong, additional, Tjoumakaris, Stavropoula I., additional, Tonsgard, James H., additional, Trejo, David, additional, Trippel, Michael, additional, Tubbs, R. Shane, additional, Tumialan, Luis M., additional, Unterberg, Andreas, additional, Vaphiades, Michael S., additional, Vaughan, T. Brooks, additional, Veeravagu, Anand, additional, Velasco, Ana Luisa, additional, Velasco, Francisco, additional, Velat, Gregory J., additional, Verlicchi, Angela, additional, Vrionis, Frank D., additional, Wager, Michel, additional, Wallace, M. Christopher, additional, Wand, Gary S., additional, Warf, Benjamin C., additional, Waters, Michael F., additional, Watson, Joseph, additional, Weiss, Martin H., additional, Weiss, Nirit, additional, Welch, William, additional, Werner, J. Kent, additional, Whitworth, Louis A., additional, Winfree, Christopher, additional, Witham, Timothy F., additional, Wolinsky, Jean-Paul, additional, Wong, Judith M., additional, Xavier, Shaun, additional, Yamini, Bakhtiar, additional, Yampolsky, Claudio, additional, Yaremchuk, Michael J., additional, Yassari, Reza, additional, Yen, Chun-Po, additional, Yianni, John, additional, Yu, Alexander K., additional, Zager, Eric L., additional, Zanotti, Bruno, additional, Zenteno, Marco, additional, Zileli, Mehmet, additional, and Zouzias, Alexandros D., additional

Published
2012
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38. List of Contributors

Author

Aardrup, Mary Pat, primary, Abejón, David, additional, Aboelsaad, Farag, additional, Abrams, Daniel J., additional, Ackermann, D. Michael, additional, Ackermans, Linda, additional, Al-Kaisy, Adnan A., additional, Alo’, Kenneth M., additional, Alterman, Ron L., additional, Paul Amar, Arun, additional, Amit, Guy, additional, Apuzzo, Michael L.J., additional, Ardell, Jeffrey L., additional, Aziz, Tipu Z., additional, Bakay, Roy A.E., additional, Baltuch, Gordon H., additional, Barolat, Giancarlo, additional, Basbaum, Allan I., additional, Bedder, Marshall D., additional, Bhadra, Narendra, additional, Bishop, Sharon, additional, Blaha, Charles D., additional, Bledsoe, Jonathan M., additional, Boulis, Nicholas, additional, Braz, Joao, additional, Broggi, Giovanni, additional, Burdick, Adam P., additional, Bussone, Gennaro, additional, Carpenter, Linda L., additional, Carr, Daniel B., additional, Cavuoto, James, additional, Celii, Amanda, additional, Chae, John, additional, Chang, Jin Woo, additional, Chen, Jiande D.Z., additional, Cohen, David B., additional, Cozzens, Jeffrey W., additional, Daneshgari, Firouz, additional, Davis, Ross, additional, Deer, Timothy R., additional, DeJongste, Mike J.L., additional, Doleys, Daniel M., additional, Donoghue, John P., additional, Dorman, Michael F., additional, Dresing, Thomas, additional, Durand, Dominique M., additional, Dyer, Allen R., additional, Eidelman, Anthony, additional, Esteller, Rosana, additional, Falowski, Steven, additional, Federici, Thais, additional, Fins, Joseph J., additional, Foote, Kelly D., additional, Foreman, Robert D., additional, Fountas, Kostas, additional, Franzini, Angelo, additional, Friedland, David, additional, Friehs, Gerhard M., additional, Gabriëls, Loes, additional, Gallagher, Rollin M., additional, Gildenberg, Philip L., additional, Goroszeniuk, Teodor, additional, Green, Alexander L., additional, Greenberg, Benjamin D., additional, Greenberg, Roy K., additional, Greene, David A., additional, Greenwood-Van Meerveld, Beverley, additional, Grill, Warren M., additional, de Groat, William C., additional, Groothuis, Katherine E., additional, Gupta, Shivani, additional, Halpern, Casey H., additional, Harb, Mouchir, additional, Hiner, Bradley C., additional, Hochberg, Leigh R., additional, Horsch, Svante, additional, Hsieh, Joseph C., additional, Jaggi, Jurg L., additional, Jenkins, Patrick D., additional, Jung, Hyun Ho, additional, Kapural, Leonardo, additional, Keith, Michael W., additional, Keravel, Yves, additional, Khan, K. Riaz, additional, Kilgore, Kevin L., additional, King-Stephens, David, additional, Knutson, Jayme, additional, Kopell, Brian Harris, additional, Kothari, Sandesha, additional, Krames, Elliot S., additional, Kumar, Krishna, additional, Kuyck, Kris van, additional, Lee, Kendall H., additional, Lee, Kwangdeok, additional, Lefaucheur, Jean Pascal, additional, Leone, Massimo, additional, Levy, Michael L., additional, Levy, Robert M., additional, Li, Dianyou, additional, Lind, Goran, additional, Linderoth, Bengt, additional, Litt, Brian, additional, Liu, Charles Y., additional, Machado, Andre G., additional, Machado, Sandra, additional, Marras, Carlo, additional, Mastracci, Tara M., additional, Mazzone, Paolo, additional, McAchran, Sarah, additional, McIntyre, Cameron C., additional, Meadows, Paul, additional, Memon, Muhammad, additional, Messina, Giuseppe, additional, Meyerson, Björn A., additional, Mogilner, Alon Y., additional, Moir, Liz, additional, Molnar, Gregory F., additional, Mortimer, J. Thomas, additional, Murro, Anthony M., additional, Nguyen, Jean Paul, additional, North, Richard B., additional, Nuttin, Bart, additional, Oh, Michael Y., additional, Okun, Michael S., additional, O’Reardon, John P., additional, Ossipov, Michael H., additional, Pancrazio, Joseph J., additional, Park, Yong D., additional, Peckham, P. Hunter, additional, Penn, Marc S., additional, Penn, Richard D., additional, Pereira, Erlick A.C., additional, Péréon, Yann, additional, Pilitsis, Julie G., additional, Polasek, Katharine H., additional, Popovic, Dejan, additional, Porreca, Frank, additional, Prager, Joshua P., additional, Quan, Kara J., additional, Rackley, Raymond, additional, Ranson, Matthew T., additional, Raoul, Sylvie, additional, Rauck, Richard L., additional, Reig, Enrique, additional, Rezai, Ali R., additional, Riley, Jonathan, additional, Rizzo, Joseph F., additional, Rosenow, Joshua M., additional, Roualdes, Vincent, additional, Samadani, Uzma, additional, Scarnati, Eugenio, additional, Schiff, Nicholas D., additional, Schulte, Stefan, additional, Sevcencu, Cristian, additional, Sharan, Ashwini D., additional, Sheffler, Lynne R., additional, Shellock, Frank G., additional, Shipley, Jane, additional, Sillay, Karl A., additional, Silverstein, Janna L., additional, Sluka, Kathleen A., additional, Smith, Howard S., additional, Smith, Joseph R., additional, Stanton-Hicks, Michael, additional, Starr, Philip A., additional, Stewart, Douglas, additional, Sun, Bomin, additional, Tagliati, Michele, additional, Taylor, Rod S., additional, Temel, Yasin, additional, Tringali, Giovenni, additional, Tyler, Dustin J., additional, Vasavada, Sandip, additional, Visser-Vandewalle, Veerle, additional, Walsh, Deirdre M., additional, Weiner, Richard L., additional, Weisz, Donald, additional, Whiting, Donald M., additional, Wilson, Blake S., additional, Winter, Jaleh, additional, Wyche, Margaret C., additional, Wu, Hemmings, additional, Yin, Jieyun, additional, and Zhan, Shikun, additional

Published
2009
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48. In vitro antimicrobial activity of equine platelet lysate and mesenchymal stromal cells against common clinical pathogens.

Author

Avellar, Haileigh K., Lutter, John D., Ganta, Charan K., Beard, Warren, Smith, Joseph R., Jonnalagadda, Naveen, Peloquin, Sarah, Qing Kang, and Ayub, Kanwal

Subjects
STROMAL cells, ANTI-infective agents, INFECTIOUS arthritis, BUTTOCKS, BLOOD platelets
Abstract

Copyright of Canadian Journal of Veterinary Research / Revue Canadienne de Recherche Vétérinaire is the property of Canadian Veterinary Medical Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022

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