Search Results - "Williams, J. G"

Scaling the yield of laser-driven electron-positron jets to laboratory astrophysical applications by Chen, Hui, Fiuza, F, Link, A, Hazi, A, Hill, M, Hoarty, D, James, S, Kerr, S, Meyerhofer, D D, Myatt, J, Park, J, Sentoku, Y, Williams, G J

“…We report new experimental results obtained on three different laser facilities that show directed laser-driven relativistic electron-positron jets with up to…”
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Ultrafast Three-Dimensional Imaging of Lattice Dynamics in Individual Gold Nanocrystals by Clark, J. N., Beitra, L., Xiong, G., Higginbotham, A., Fritz, D. M., Lemke, H. T., Zhu, D., Chollet, M., Williams, G. J., Messerschmidt, M., Abbey, B., Harder, R. J., Korsunsky, A. M., Wark, J. S., Robinson, I. K.

“…Key insights into the behavior of materials can be gained by observing their structure as they undergo lattice distortion. Laser pulses on the femtosecond time…”
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A Randomized Clinical Trial of Mindfulness-Based Cognitive Therapy Versus Unrestricted Services for Health Anxiety (Hypochondriasis) by McManus, Freda, Surawy, Christina, Muse, Kate, Vazquez-Montes, Maria, Williams, J. Mark G.

“…Objective: The efficacy and acceptability of existing psychological interventions for health anxiety (hypochondriasis) are limited. In the current study, the…”
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Femtosecond Visualization of Lattice Dynamics in Shock-Compressed Matter by Milathianaki, D., Boutet, S., Williams, G. J., Higginbotham, A., Ratner, D., Gleason, A. E., Messerschmidt, M., Seibert, M. M., Swift, D. C., Hering, P., Robinson, J., White, W. E., Wark, J. S.

“…The ultrafast evolution of microstructure is key to understanding high-pressure and strain-rate phenomena. However, the visualization of lattice dynamics at…”
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Femtosecond response of polyatomic molecules to ultra-intense hard X-rays by Rudenko, A., Inhester, L., Hanasaki, K., Li, X., Robatjazi, S. J., Erk, B., Boll, R., Toyota, K., Hao, Y., Vendrell, O., Bomme, C., Savelyev, E., Rudek, B., Foucar, L., Southworth, S. H., Lehmann, C. S., Kraessig, B., Marchenko, T., Simon, M., Ueda, K., Ferguson, K. R., Bucher, M., Gorkhover, T., Carron, S., Alonso-Mori, R., Koglin, J. E., Correa, J., Williams, G. J., Boutet, S., Young, L., Bostedt, C., Son, S.-K., Santra, R., Rolles, D.

“…Upon exposure to ultra-intense, hard X-ray pulses, polyatomic molecules containing one heavy atom reach a much higher degree of ionization than do individual…”
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Autobiographical Memory Specificity and Emotional Disorder by Williams, J. Mark G, Barnhofer, Thorsten, Crane, Catherine, Hermans, Dirk, Raes, Filip, Watkins, Ed, Dalgleish, Tim

“…The authors review research showing that when recalling autobiographical events, many emotionally disturbed patients summarize categories of events rather than…”
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Comment on "Table-Top Laser-Based Source of Femtosecond, Collimated, Ultrarelativistic Positron Beams" by Williams, G J, Chen, Hui, Kim, J, Kerr, S, Khater, H Y

“…Sarri et al. have reported the generation of low divergence (~3 mrad), high-density (1014 cm–3) positron beams using millimeter-scale converter targets and a…”
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Construct Validity of the Five Facet Mindfulness Questionnaire in Meditating and Nonmeditating Samples by Baer, Ruth A., Smith, Gregory T., Lykins, Emily, Button, Daniel, Krietemeyer, Jennifer, Sauer, Shannon, Walsh, Erin, Duggan, Danielle, Williams, J. Mark G.

“…Previous research on assessment of mindfulness by self-report suggests that it may include five component skills: observing, describing, acting with awareness,…”
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Mindfulness-based cognitive therapy as a treatment for chronic depression: A preliminary study by Barnhofer, Thorsten, Crane, Catherine, Hargus, Emily, Amarasinghe, Myanthi, Winder, Rosie, Williams, J. Mark G.

“…This pilot study investigated the effectiveness of Mindfulness-Based Cognitive Therapy (MBCT), a treatment combining mindfulness meditation and interventions…”
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Cyberchondriasis: Fact or fiction? A preliminary examination of the relationship between health anxiety and searching for health information on the Internet by Muse, Kate, McManus, Freda, Leung, Christie, Meghreblian, Ben, Williams, J. Mark G

“…Highlights ► Individuals with high health anxiety seek online health information more frequently and spend longer searching online. ► Individuals with high…”
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Review article: the prevalence of Helicobacter pylori and the incidence of gastric cancer across Europe by Roberts, S. E., Morrison‐Rees, S., Samuel, D. G., Thorne, K., Akbari, A., Williams, J. G.

“…Summary Background There is little up‐to‐date review evidence on the prevalence of Helicobacter pylori across Europe. Aim To establish regional and national…”
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Systematic review of prevalence studies of autism spectrum disorders by Williams, J G, Higgins, J P T, Brayne, C E G

“…Aim: To quantitatively examine the influence of study methodology and population characteristics on prevalence estimates of autism spectrum disorders. Methods:…”
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Rumination, experiential avoidance, and dysfunctional thinking in eating disorders by Rawal, Adhip, Park, Rebecca J., Williams, J. Mark G.

“…The majority of research in eating disorders (ED) has investigated the content of disorder-specific thoughts, while few studies have addressed underlying…”
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Effects of Mindfulness on Meta-Awareness and Specificity of Describing Prodromal Symptoms in Suicidal Depression by Hargus, Emily, Crane, Catherine, Barnhofer, Thorsten, Williams, J. Mark G

“…The authors examined the effects of mindfulness training on 2 aspects of mode of processing in depressed participants: degree of meta-awareness and specificity…”
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Slow and Fast Light in Plasma Using Optical Wave Mixing by Goyon, C., Edwards, M. R., Chapman, T., Divol, L., Lemos, N., Williams, G. J., Mariscal, D. A., Turnbull, D., Hansen, A. M., Michel, P.

“…Slow and fast light, or large changes in the group velocity of light, have been observed in a range of optical media, but the fine optical control necessary to…”
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Towards the optimisation of direct laser acceleration by Hussein, A E, Arefiev, A V, Batson, T, Chen, H, Craxton, R S, Davies, A S, Froula, D H, Gong, Z, Haberberger, D, Ma, Y, Nilson, P M, Theobald, W, Wang, T, Weichman, K, Williams, G J, Willingale, L

“…Experimental measurements using the OMEGA EP laser facility demonstrated direct laser acceleration (DLA) of electron beams to (505 ± 75) MeV with (140 ± 30) nC…”
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The unexpected role of evolving longitudinal electric fields in generating energetic electrons in relativistically transparent plasmas by Willingale, L, Arefiev, A V, Williams, G J, Chen, H, Dollar, F, Hazi, A U, Maksimchuk, A, Manuel, M J-E, Marley, E, Nazarov, W, Zhao, T Z, Zulick, C

“…Superponderomotive-energy electrons are observed experimentally from the interaction of an intense laser pulse with a relativistically transparent target. For…”
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Enhancing positron production using front surface target structures by Jiang, S., Link, A., Canning, D., Fooks, J. A., Kempler, P. A., Kerr, S., Kim, J., Krieger, M., Lewis, N. S., Wallace, R., Williams, G. J., Yalamanchili, S., Chen, Hui

“…We report a target design which produced a substantial gain in relativistic electron-positron pair production using high-intensity lasers and targets with…”
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Measurement of Dark Ice-Ablator Mix in Inertial Confinement Fusion by Bachmann, B, MacLaren, S A, Bhandarkar, S, Briggs, T, Casey, D, Divol, L, Döppner, T, Fittinghoff, D, Freeman, M, Haan, S, Hall, G N, Hammel, B, Hartouni, E, Izumi, N, Geppert-Kleinrath, V, Khan, S, Kozioziemski, B, Krauland, C, Landen, O, Mariscal, D, Marley, E, Masse, L, Meaney, K, Mellos, G, Moore, A, Pak, A, Patel, P, Ratledge, M, Rice, N, Rubery, M, Salmonson, J, Sater, J, Schlossberg, D, Schneider, M, Smalyuk, V A, Trosseille, C, Volegov, P, Weber, C, Williams, G J, Wray, A

“…We present measurements of ice-ablator mix at stagnation of inertially confined, cryogenically layered capsule implosions. An ice layer thickness scan with…”
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Prevention of Relapse/Recurrence in Major Depression by Mindfulness-Based Cognitive Therapy by Teasdale, John D, Segal, Zindel V, Williams, J. Mark G, Ridgeway, Valerie A, Soulsby, Judith M, Lau, Mark A

“…This study evaluated mindfulness-based cognitive therapy (MBCT), a group intervention designed to train recovered recurrently depressed patients to disengage…”
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