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Examining the unique relationships between problematic use of the internet and impulsive and compulsive tendencies: network approach
- Chang Liu, Kristian Rotaru, Lei Ren, Samuel R. Chamberlain, Erynn Christensen, Mary-Ellen Brierley, Karyn Richardson, Rico S. C. Lee, Rebecca Segrave, Jon E. Grant, Edouard Kayayan, Sam Hughes, Leonardo F. Fontenelle, Amelia Lowe, Chao Suo, René Freichel, Reinout W. Wiers, Murat Yücel, Lucy Albertella
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- BJPsych Open / Volume 10 / Issue 3 / May 2024
- Published online by Cambridge University Press:
- 09 May 2024, e104
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Background
Both impulsivity and compulsivity have been identified as risk factors for problematic use of the internet (PUI). Yet little is known about the relationship between impulsivity, compulsivity and individual PUI symptoms, limiting a more precise understanding of mechanisms underlying PUI.
AimsThe current study is the first to use network analysis to (a) examine the unique association among impulsivity, compulsivity and PUI symptoms, and (b) identify the most influential drivers in relation to the PUI symptom community.
MethodWe estimated a Gaussian graphical model consisting of five facets of impulsivity, compulsivity and individual PUI symptoms among 370 Australian adults (51.1% female, mean age = 29.8, s.d. = 11.1). Network structure and bridge expected influence were examined to elucidate differential associations among impulsivity, compulsivity and PUI symptoms, as well as identify influential nodes bridging impulsivity, compulsivity and PUI symptoms.
ResultsResults revealed that four facets of impulsivity (i.e. negative urgency, positive urgency, lack of premeditation and lack of perseverance) and compulsivity were related to different PUI symptoms. Further, compulsivity and negative urgency were the most influential nodes in relation to the PUI symptom community due to their highest bridge expected influence.
ConclusionsThe current findings delineate distinct relationships across impulsivity, compulsivity and PUI, which offer insights into potential mechanistic pathways and targets for future interventions in this space. To realise this potential, future studies are needed to replicate the identified network structure in different populations and determine the directionality of the relationships among impulsivity, compulsivity and PUI symptoms.
Psychosocial implications of early COVID-19 restrictions on older adults in a small-town region in Southwestern, Pennsylvania (USA)
- Tiffany F. Hughes, Xinhui Ran, Fang Fang, Erin Jacobsen, Beth E. Snitz, Chung-Chou H. Chang, Mary Ganguli
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- International Psychogeriatrics , First View
- Published online by Cambridge University Press:
- 10 November 2022, pp. 1-10
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Objectives:
The restrictions put in place in 2020 to mitigate the spread of the coronavirus disease 2019 limited or eliminated social connections that are vital for psychosocial well-being. The objectives of this research were to examine the impact of early pandemic-related restrictions on feelings of loneliness, depression, and anxiety as well as social activity disruption and their concomitant associations in a sample of community-dwelling older adults residing in a small-town region in the USA.
Design and Setting:Cross-sectional data collected from an ongoing population-based cohort study in Southwestern, Pennsylvania.
Participants:Analyses included 360 adults aged 65 years and older whose annual study assessment occurred during the first 120 days of pandemic-related restrictions.
Measurements:Self-reported feelings of loneliness, depression, and anxiety due to the pandemic-related restrictions were each measured using a single question. Depressive symptoms and anxiety were also assessed with the modified Center for Epidemiologic Studies-Depression and Generalized Anxiety Disorder-7 item tools. Disruption in a variety of common social activities was also assessed.
Results:Feeling lonely affected 36% of participants who were more likely to be female, not currently married, and living alone. Giving up in-person visits with family was associated with significantly higher odds of feeling lonely, and feeling lonely was associated with significantly higher odds of feelings of anxiety and depression.
Conclusions:Loneliness is a serious outcome of pandemic-related restrictions among older adults, potentially linked to loss of connection with family, and may be associated with increased feelings of depression and anxiety.
In situ, broadband measurement of the radio frequency attenuation length at Summit Station, Greenland
- J. A. Aguilar, P. Allison, J. J. Beatty, D. Besson, A. Bishop, O. Botner, S. Bouma, S. Buitink, M. Cataldo, B. A. Clark, Z. Curtis-Ginsberg, A. Connolly, P. Dasgupta, S. de Kockere, K. D. de Vries, C. Deaconu, M. A. DuVernois, C. Glaser, A. Hallgren, S. Hallmann, J. C. Hanson, B. Hendricks, C. Hornhuber, K. Hughes, A. Karle, J. L. Kelley, I. Kravchenko, R. Krebs, R. Lahmann, U. Latif, J. Mammo, Z. S. Meyers, K. Michaels, K. Mulrey, A. Nelles, A. Novikov, A. Nozdrina, E. Oberla, B. Oeyen, Y. Pan, H. Pandya, I. Plaisier, N. Punsuebsay, L. Pyras, D. Ryckbosch, O. Scholten, D. Seckel, M. F. H. Seikh, D. Smith, D. Southall, J. Torres, S. Toscano, D. Tosi, D. J. Van Den Broeck, N. van Eijndhoven, A. G. Vieregg, C. Welling, D. R. Williams, S. Wissel, R. Young, A. Zink
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- Journal:
- Journal of Glaciology / Volume 68 / Issue 272 / December 2022
- Published online by Cambridge University Press:
- 30 May 2022, pp. 1234-1242
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Over the last 25 years, radiowave detection of neutrino-generated signals, using cold polar ice as the neutrino target, has emerged as perhaps the most promising technique for detection of extragalactic ultra-high energy neutrinos (corresponding to neutrino energies in excess of 0.01 Joules, or 1017 electron volts). During the summer of 2021 and in tandem with the initial deployment of the Radio Neutrino Observatory in Greenland (RNO-G), we conducted radioglaciological measurements at Summit Station, Greenland to refine our understanding of the ice target. We report the result of one such measurement, the radio-frequency electric field attenuation length $L_\alpha$. We find an approximately linear dependence of $L_\alpha$ on frequency with the best fit of the average field attenuation for the upper 1500 m of ice: $\langle L_\alpha \rangle = ( ( 1154 \pm 121) - ( 0.81 \pm 0.14) \, ( \nu /{\rm MHz}) ) \,{\rm m}$ for frequencies ν ∈ [145 − 350] MHz.
The role of psychological distress in the relationship between lifestyle and compulsivity: An analysis of independent, bi-national samples
- Mary-Ellen E. Brierley, Lucy Albertella, Kristian Rotaru, Louise Destree, Emma M. Thompson, Chang Liu, Erynn Christensen, Amelia Lowe, Rebecca A. Segrave, Karyn E. Richardson, Edouard Kayayan, Samuel R. Chamberlain, Jon E. Grant, Rico S. C. Lee, Sam Hughes, Murat Yücel, Leonardo F. Fontenelle
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- Journal:
- CNS Spectrums / Volume 28 / Issue 2 / April 2023
- Published online by Cambridge University Press:
- 13 December 2021, pp. 164-173
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Background
Poor mental health is a state of psychological distress that is influenced by lifestyle factors such as sleep, diet, and physical activity. Compulsivity is a transdiagnostic phenotype cutting across a range of mental illnesses including obsessive–compulsive disorder, substance-related and addictive disorders, and is also influenced by lifestyle. Yet, how lifestyle relates to compulsivity is presently unknown, but important to understand to gain insights into individual differences in mental health. We assessed (a) the relationships between compulsivity and diet quality, sleep quality, and physical activity, and (b) whether psychological distress statistically contributes to these relationships.
MethodsWe collected harmonized data on compulsivity, psychological distress, and lifestyle from two independent samples (Australian n = 880 and US n = 829). We used mediation analyses to investigate bidirectional relationships between compulsivity and lifestyle factors, and the role of psychological distress.
ResultsHigher compulsivity was significantly related to poorer diet and sleep. Psychological distress statistically mediated the relationship between poorer sleep quality and higher compulsivity, and partially statistically mediated the relationship between poorer diet and higher compulsivity.
ConclusionsLifestyle interventions in compulsivity may target psychological distress in the first instance, followed by sleep and diet quality. As psychological distress links aspects of lifestyle and compulsivity, focusing on mitigating and managing distress may offer a useful therapeutic approach to improve physical and mental health. Future research may focus on the specific sleep and diet patterns which may alter compulsivity over time to inform lifestyle targets for prevention and treatment of functionally impairing compulsive behaviors.
Overview of the SPARC tokamak
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- A. J. Creely, M. J. Greenwald, S. B. Ballinger, D. Brunner, J. Canik, J. Doody, T. Fülöp, D. T. Garnier, R. Granetz, T. K. Gray, C. Holland, N. T. Howard, J. W. Hughes, J. H. Irby, V. A. Izzo, G. J. Kramer, A. Q. Kuang, B. LaBombard, Y. Lin, B. Lipschultz, N. C. Logan, J. D. Lore, E. S. Marmar, K. Montes, R. T. Mumgaard, C. Paz-Soldan, C. Rea, M. L. Reinke, P. Rodriguez-Fernandez, K. Särkimäki, F. Sciortino, S. D. Scott, A. Snicker, P. B. Snyder, B. N. Sorbom, R. Sweeney, R. A. Tinguely, E. A. Tolman, M. Umansky, O. Vallhagen, J. Varje, D. G. Whyte, J. C. Wright, S. J. Wukitch, J. Zhu, the SPARC Team
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- Journal of Plasma Physics / Volume 86 / Issue 5 / October 2020
- Published online by Cambridge University Press:
- 29 September 2020, 865860502
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The SPARC tokamak is a critical next step towards commercial fusion energy. SPARC is designed as a high-field ($B_0 = 12.2$ T), compact ($R_0 = 1.85$ m, $a = 0.57$ m), superconducting, D-T tokamak with the goal of producing fusion gain $Q>2$ from a magnetically confined fusion plasma for the first time. Currently under design, SPARC will continue the high-field path of the Alcator series of tokamaks, utilizing new magnets based on rare earth barium copper oxide high-temperature superconductors to achieve high performance in a compact device. The goal of $Q>2$ is achievable with conservative physics assumptions ($H_{98,y2} = 0.7$) and, with the nominal assumption of $H_{98,y2} = 1$, SPARC is projected to attain $Q \approx 11$ and $P_{\textrm {fusion}} \approx 140$ MW. SPARC will therefore constitute a unique platform for burning plasma physics research with high density ($\langle n_{e} \rangle \approx 3 \times 10^{20}\ \textrm {m}^{-3}$), high temperature ($\langle T_e \rangle \approx 7$ keV) and high power density ($P_{\textrm {fusion}}/V_{\textrm {plasma}} \approx 7\ \textrm {MW}\,\textrm {m}^{-3}$) relevant to fusion power plants. SPARC's place in the path to commercial fusion energy, its parameters and the current status of SPARC design work are presented. This work also describes the basis for global performance projections and summarizes some of the physics analysis that is presented in greater detail in the companion articles of this collection.
Burnout in psychosocial oncology clinicians: A systematic review
- Sue E. Morris, Sarah J. Tarquini, Miryam Yusufov, Esmeralda Adolf, Hermioni L. Amonoo, Paul A. Bain, Nancy A. Borstelmann, Ilana M. Braun, Tricia Hughes, Anna C. Muriel, Lisa M. Northman, John R. Peteet, Hanneke Poort, Angelee Russ-Carbin, William F. Pirl
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- Palliative & Supportive Care / Volume 19 / Issue 2 / April 2021
- Published online by Cambridge University Press:
- 08 September 2020, pp. 223-234
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Objective
Few studies have examined burnout in psychosocial oncology clinicians. The aim of this systematic review was to summarize what is known about the prevalence and severity of burnout in psychosocial clinicians who work in oncology settings and the factors that are believed to contribute or protect against it.
MethodArticles on burnout (including compassion fatigue and secondary trauma) in psychosocial oncology clinicians were identified by searching PubMed/MEDLINE, EMBASE, PsycINFO, the Cumulative Index to Nursing and Allied Health Literature, and the Web of Science Core Collection.
ResultsThirty-eight articles were reviewed at the full-text level, and of those, nine met study inclusion criteria. All were published between 2004 and 2018 and included data from 678 psychosocial clinicians. Quality assessment revealed relatively low risk of bias and high methodological quality. Study composition and sample size varied greatly, and the majority of clinicians were aged between 40 and 59 years. Across studies, 10 different measures were used to assess burnout, secondary traumatic stress, and compassion fatigue, in addition to factors that might impact burnout, including work engagement, meaning, and moral distress. When compared with other medical professionals, psychosocial oncology clinicians endorsed lower levels of burnout.
Significance of resultsThis systematic review suggests that psychosocial clinicians are not at increased risk of burnout compared with other health care professionals working in oncology or in mental health. Although the data are quite limited, several factors appear to be associated with less burnout in psychosocial clinicians, including exposure to patient recovery, discussing traumas, less moral distress, and finding meaning in their work. More research using standardized measures of burnout with larger samples of clinicians is needed to examine both prevalence rates and how the experience of burnout changes over time. By virtue of their training, psychosocial clinicians are well placed to support each other and their nursing and medical colleagues.
Probing the cold magnetised Universe with SPICA-POL (B-BOP)
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- Ph. André, A. Hughes, V. Guillet, F. Boulanger, A. Bracco, E. Ntormousi, D. Arzoumanian, A.J. Maury, J.-Ph. Bernard, S. Bontemps, I. Ristorcelli, J.M. Girart, F. Motte, K. Tassis, E. Pantin, T. Montmerle, D. Johnstone, S. Gabici, A. Efstathiou, S. Basu, M. Béthermin, H. Beuther, J. Braine, J. Di Francesco, E. Falgarone, K. Ferrière, A. Fletcher, M. Galametz, M. Giard, P. Hennebelle, A. Jones, A. A. Kepley, J. Kwon, G. Lagache, P. Lesaffre, F. Levrier, D. Li, Z.-Y. Li, S. A. Mao, T. Nakagawa, T. Onaka, R. Paladino, N. Peretto, A. Poglitsch, V. Revéret, L. Rodriguez, M. Sauvage, J. D. Soler, L. Spinoglio, F. Tabatabaei, A. Tritsis, F. van der Tak, D. Ward-Thompson, H. Wiesemeyer, N. Ysard, H. Zhang
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- Publications of the Astronomical Society of Australia / Volume 36 / 2019
- Published online by Cambridge University Press:
- 02 August 2019, e029
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Space Infrared Telescope for Cosmology and Astrophysics (SPICA), the cryogenic infrared space telescope recently pre-selected for a ‘Phase A’ concept study as one of the three remaining candidates for European Space Agency (ESA's) fifth medium class (M5) mission, is foreseen to include a far-infrared polarimetric imager [SPICA-POL, now called B-fields with BOlometers and Polarizers (B-BOP)], which would offer a unique opportunity to resolve major issues in our understanding of the nearby, cold magnetised Universe. This paper presents an overview of the main science drivers for B-BOP, including high dynamic range polarimetric imaging of the cold interstellar medium (ISM) in both our Milky Way and nearby galaxies. Thanks to a cooled telescope, B-BOP will deliver wide-field 100–350 $\mu$m images of linearly polarised dust emission in Stokes Q and U with a resolution, signal-to-noise ratio, and both intensity and spatial dynamic ranges comparable to those achieved by Herschel images of the cold ISM in total intensity (Stokes I). The B-BOP 200 $\mu$m images will also have a factor $\sim $30 higher resolution than Planck polarisation data. This will make B-BOP a unique tool for characterising the statistical properties of the magnetised ISM and probing the role of magnetic fields in the formation and evolution of the interstellar web of dusty molecular filaments giving birth to most stars in our Galaxy. B-BOP will also be a powerful instrument for studying the magnetism of nearby galaxies and testing Galactic dynamo models, constraining the physics of dust grain alignment, informing the problem of the interaction of cosmic rays with molecular clouds, tracing magnetic fields in the inner layers of protoplanetary disks, and monitoring accretion bursts in embedded protostars.
Control of Volunteer Canola with Herbicides: Effects of Plant Growth Stage and Cold Acclimation
- Anne Légère, Marie-Josée Simard, Eric Johnson, F. Craig Stevenson, Hugh Beckie, Robert E. Blackshaw
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- Weed Technology / Volume 20 / Issue 2 / June 2006
- Published online by Cambridge University Press:
- 20 January 2017, pp. 485-493
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Phenoxy herbicides are frequently used to control volunteer canola populations. However, there have been claims that poor control could be due to cold acclimation of canola plants in the spring. The objective of this study was to determine whether cold acclimation or growth stage affected the response of canola volunteers to herbicides. In a growth room experiment, canola plants were prehardened and cold acclimated or were grown at 20/12 C and treated with one of six 2,4-D doses. Cold acclimation as achieved by this experiment affected upper and lower asymptotes of the dose–response curve but not the herbicide dose required to reduce canola weight by 50% relative to the nontreated control (GR50), indicating limited cold-related effects on canola tolerance to 2,4-D. Field experiments, conducted in the provinces of Québec and Saskatchewan, examined the effects of canola growth stage on the efficacy of 2,4-D, MCPA, and carfentrazone. Comparisons of the estimates from the dose–response curves confirmed that herbicide efficacy was consistently greater when canola plants were treated at an early growth stage, regardless of cultivar or herbicide used. The GR50 estimates for canola plants treated at a later growth stage exceeded the recommended rates. Some canola plants grown as volunteers in a wheat crop survived 2,4-D or MCPA treatments at 0.5× and 1× rates and produced up to 148 seeds/m2. Efficient control of canola volunteers will be obtained when plants are sprayed at an early growth stage, but near-total control will be highly desirable in order to restrict seedbank buildup, particularly when dealing with canola cultivars with different herbicide-resistant traits.
The Last Interglacial Ocean
- Rose Marie L. Cline, James D. Hays, Warren L. Prell, William F. Ruddiman, Ted C. Moore, Nilva G. Kipp, Barbara E. Molfino, George H. Denton, Terence J. Hughes, William L. Balsam, Charlotte A. Brunner, Jean-Claude Duplessy, Ann G. Esmay, James L. Fastook, John Imbrie, Lloyd D. Keigwin, Thomas B. Kellogg, Andrew McIntyre, Robley K. Matthews, Alan C. Mix, Joseph J. Morley, Nicholas J. Shackleton, S. Stephen Streeter, Peter R. Thompson
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- Quaternary Research / Volume 21 / Issue 2 / February 1984
- Published online by Cambridge University Press:
- 20 January 2017, pp. 123-224
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The final effort of the CLIMAP project was a study of the last interglaciation, a time of minimum ice volume some 122,000 yr ago coincident with the Substage 5e oxygen isotopic minimum. Based on detailed oxygen isotope analyses and biotic census counts in 52 cores across the world ocean, last interglacial sea-surface temperatures (SST) were compared with those today. There are small SST departures in the mid-latitude North Atlantic (warmer) and the Gulf of Mexico (cooler). The eastern boundary currents of the South Atlantic and Pacific oceans are marked by large SST anomalies in individual cores, but their interpretations are precluded by no-analog problems and by discordancies among estimates from different biotic groups. In general, the last interglacial ocean was not significantly different from the modern ocean. The relative sequencing of ice decay versus oceanic warming on the Stage 6/5 oxygen isotopic transition and of ice growth versus oceanic cooling on the Stage 5e/5d transition was also studied. In most of the Southern Hemisphere, the oceanic response marked by the biotic census counts preceded (led) the global ice-volume response marked by the oxygen-isotope signal by several thousand years. The reverse pattern is evident in the North Atlantic Ocean and the Gulf of Mexico, where the oceanic response lagged that of global ice volume by several thousand years. As a result, the very warm temperatures associated with the last interglaciation were regionally diachronous by several thousand years. These regional lead-lag relationships agree with those observed on other transitions and in long-term phase relationships; they cannot be explained simply as artifacts of bioturbational translations of the original signals.
Role of B-vitamins as determinants of neuropsychiatric health in ageing
- K. Moore, C. F. Hughes, L. Hoey, M. Ward, K. Porter, J.J. Strain, A. Molloy, C. Cunningham, M. Casey, E. Laird, H. McNulty
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- Proceedings of the Nutrition Society / Volume 75 / Issue OCE3 / 2016
- Published online by Cambridge University Press:
- 24 November 2016, E115
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Cohort effects in verbal memory function and practice effects: a population-based study
- Hiroko H Dodge, Jian Zhu, Tiffany F. Hughes, Beth E. Snitz, Chung-Chou H. Chang, Erin P. Jacobsen, Mary Ganguli
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- International Psychogeriatrics / Volume 29 / Issue 1 / January 2017
- Published online by Cambridge University Press:
- 11 October 2016, pp. 137-148
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Background:
In many developed countries, cognitive functioning (as measured by neuropsychological tests) appears to be improving over time in the population at large, in parallel with the declining age-specific incidence of dementia. Here, we investigated cohort effects in the age-associated trajectories of verbal memory function in older adults. We sought to determine whether they varied by decade of birth and, if so, whether the change would be explained by increasing educational attainment.
Methods:Pooling data from two prospective US population-based studies between 1987 and 2015, we identified four birth cohorts born 1902–1911, 1912–1921, 1922–1931, and 1932–1943. Among these cohorts, we compared age-associated trajectories both of performance and of practice effects on immediate and delayed recall of a 10-item Word List. We used mixed effects models, first including birth cohorts and cohort X age interaction terms, and then controlling for education and education X age interaction.
Results:We observed significant cohort effects in performance (baseline and age-associated trajectories) in both immediate recall and delayed recall, with function improving between the earliest- and latest-born cohorts. For both tests, we also observed cohort effects on practice effects with the highest levels in the latest-born cohorts. Including education in the models did not attenuate these effects.
Conclusions:In this longitudinal population study, across four decade-long birth cohorts, there were significant improvements in test performance and practice effects in verbal memory tests, not explained by education. Whether this reflects declining disease incidence or other secular trends awaits further investigation.
Gravitationally Lensed CO and Dust at High Redshift: New LMT/GTM Images and Spectra of Sub-Millimeter Galaxies
- J. D. Lowenthal, K. Harrington, D. Berman, M. Yun, R. Cybulski, G. W. Wilson, I. Aretxaga, M. Chavez, V. De la Luz, N. Erickson, D. Ferrusca, A. Gallup, D. Hughes, A. Montaña, G. Narayanan, D. Sánchez-Argüelles, F. P. Schloerb, K. Souccar, E. Terlevich, R. Terlevich, M. Zeballos, J. A. Zavala
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- Journal:
- Proceedings of the International Astronomical Union / Volume 11 / Issue S321 / March 2016
- Published online by Cambridge University Press:
- 21 March 2017, p. 363
- Print publication:
- March 2016
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We have assembled a new sample of some of the most FIR-luminous galaxies in the Universe and have imaged them in 1.1 mm dust emission and measured their redshifts 1 < z < 4 via CO emission lines using the 32-m Large Millimeter Telescope / Gran Telescopio Milimétrico (LMT/GTM). Our sample of 31 submm galaxies (SMGs), culled from the Planck and Herschel all-sky surveys, includes 14 of the 21 most luminous galaxies known, with LFIR > 1014L⊙ and SFR > 104M⊙/yr. These extreme inferred luminosities – and multiple / extended 1.1 mm images – imply that most or all are strongly gravitationally lensed, with typical magnification μ ~ 10 × . The gravitational lensing provides two significant benefits: (1) it boosts the S/N, and (2) it allows investigation of star formation and gas processes on sub-kpc scales.
Do Subjective Memory Complaints Lead or Follow Objective Cognitive Change? A Five-Year Population Study of Temporal Influence
- Beth E. Snitz, Brent J. Small, Tianxiu Wang, Chung-Chou H. Chang, Tiffany F. Hughes, Mary Ganguli
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- Journal of the International Neuropsychological Society / Volume 21 / Issue 9 / October 2015
- Published online by Cambridge University Press:
- 19 October 2015, pp. 732-742
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The relationship between subjective memory complaints (SM) and objective memory (OM) performance in aging has been variably characterized in a substantial literature, to date. In particular, cross-sectional studies often observe weak or no associations. We investigated whether subjective memory complaints and objectively measured cognition influence each other over time, and if so, which is the stronger pathway of change—objective to subjective, or subjective to objective—or whether they are both important. Using bivariate latent change score modeling in data from a population study (N=1980) over 5 annual assessment cycles, we tested four corresponding hypotheses: (1) no coupling between SM and OM over time; (2) SM as leading indicator of change in OM; (3) OM as leading indicator of change in SM; (4) dual coupling over time, with both SM and OM leading subsequent change in the other. We also extended objective cognition to two other domains, language and executive functions. The dual-coupling models best fit the data for all three objective cognitive domains. The SM–OM temporal dynamics differ qualitatively compared to other domains, potentially reflecting changes in insight and self-awareness specific to memory impairment. Subjective memory and objective cognition reciprocally influence each other over time. The temporal dynamics between subjective and objective cognition in aging are nuanced, and must be carefully disentangled to shed light on the underlying processes. (JINS, 2015, 21, 732–742)
Contributors
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- By Mitchell Aboulafia, Frederick Adams, Marilyn McCord Adams, Robert M. Adams, Laird Addis, James W. Allard, David Allison, William P. Alston, Karl Ameriks, C. Anthony Anderson, David Leech Anderson, Lanier Anderson, Roger Ariew, David Armstrong, Denis G. Arnold, E. J. Ashworth, Margaret Atherton, Robin Attfield, Bruce Aune, Edward Wilson Averill, Jody Azzouni, Kent Bach, Andrew Bailey, Lynne Rudder Baker, Thomas R. Baldwin, Jon Barwise, George Bealer, William Bechtel, Lawrence C. Becker, Mark A. Bedau, Ernst Behler, José A. Benardete, Ermanno Bencivenga, Jan Berg, Michael Bergmann, Robert L. Bernasconi, Sven Bernecker, Bernard Berofsky, Rod Bertolet, Charles J. Beyer, Christian Beyer, Joseph Bien, Joseph Bien, Peg Birmingham, Ivan Boh, James Bohman, Daniel Bonevac, Laurence BonJour, William J. Bouwsma, Raymond D. Bradley, Myles Brand, Richard B. Brandt, Michael E. Bratman, Stephen E. Braude, Daniel Breazeale, Angela Breitenbach, Jason Bridges, David O. Brink, Gordon G. Brittan, Justin Broackes, Dan W. Brock, Aaron Bronfman, Jeffrey E. Brower, Bartosz Brozek, Anthony Brueckner, Jeffrey Bub, Lara Buchak, Otavio Bueno, Ann E. Bumpus, Robert W. Burch, John Burgess, Arthur W. Burks, Panayot Butchvarov, Robert E. Butts, Marina Bykova, Patrick Byrne, David Carr, Noël Carroll, Edward S. Casey, Victor Caston, Victor Caston, Albert Casullo, Robert L. Causey, Alan K. L. Chan, Ruth Chang, Deen K. Chatterjee, Andrew Chignell, Roderick M. Chisholm, Kelly J. Clark, E. J. Coffman, Robin Collins, Brian P. Copenhaver, John Corcoran, John Cottingham, Roger Crisp, Frederick J. Crosson, Antonio S. Cua, Phillip D. Cummins, Martin Curd, Adam Cureton, Andrew Cutrofello, Stephen Darwall, Paul Sheldon Davies, Wayne A. Davis, Timothy Joseph Day, Claudio de Almeida, Mario De Caro, Mario De Caro, John Deigh, C. F. Delaney, Daniel C. Dennett, Michael R. DePaul, Michael Detlefsen, Daniel Trent Devereux, Philip E. Devine, John M. Dillon, Martin C. Dillon, Robert DiSalle, Mary Domski, Alan Donagan, Paul Draper, Fred Dretske, Mircea Dumitru, Wilhelm Dupré, Gerald Dworkin, John Earman, Ellery Eells, Catherine Z. Elgin, Berent Enç, Ronald P. Endicott, Edward Erwin, John Etchemendy, C. Stephen Evans, Susan L. Feagin, Solomon Feferman, Richard Feldman, Arthur Fine, Maurice A. Finocchiaro, William FitzPatrick, Richard E. Flathman, Gvozden Flego, Richard Foley, Graeme Forbes, Rainer Forst, Malcolm R. Forster, Daniel Fouke, Patrick Francken, Samuel Freeman, Elizabeth Fricker, Miranda Fricker, Michael Friedman, Michael Fuerstein, Richard A. Fumerton, Alan Gabbey, Pieranna Garavaso, Daniel Garber, Jorge L. A. Garcia, Robert K. Garcia, Don Garrett, Philip Gasper, Gerald Gaus, Berys Gaut, Bernard Gert, Roger F. Gibson, Cody Gilmore, Carl Ginet, Alan H. Goldman, Alvin I. Goldman, Alfonso Gömez-Lobo, Lenn E. Goodman, Robert M. Gordon, Stefan Gosepath, Jorge J. E. Gracia, Daniel W. Graham, George A. Graham, Peter J. Graham, Richard E. Grandy, I. Grattan-Guinness, John Greco, Philip T. Grier, Nicholas Griffin, Nicholas Griffin, David A. Griffiths, Paul J. Griffiths, Stephen R. Grimm, Charles L. Griswold, Charles B. Guignon, Pete A. Y. Gunter, Dimitri Gutas, Gary Gutting, Paul Guyer, Kwame Gyekye, Oscar A. Haac, Raul Hakli, Raul Hakli, Michael Hallett, Edward C. Halper, Jean Hampton, R. James Hankinson, K. R. Hanley, Russell Hardin, Robert M. Harnish, William Harper, David Harrah, Kevin Hart, Ali Hasan, William Hasker, John Haugeland, Roger Hausheer, William Heald, Peter Heath, Richard Heck, John F. Heil, Vincent F. Hendricks, Stephen Hetherington, Francis Heylighen, Kathleen Marie Higgins, Risto Hilpinen, Harold T. Hodes, Joshua Hoffman, Alan Holland, Robert L. Holmes, Richard Holton, Brad W. Hooker, Terence E. Horgan, Tamara Horowitz, Paul Horwich, Vittorio Hösle, Paul Hoβfeld, Daniel Howard-Snyder, Frances Howard-Snyder, Anne Hudson, Deal W. Hudson, Carl A. Huffman, David L. 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- Edited by Robert Audi, University of Notre Dame, Indiana
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- The Cambridge Dictionary of Philosophy
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- 05 August 2015
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- 27 April 2015, pp ix-xxx
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Contributors
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- By Ra‘anan Boustan, Jonathan P. Conant, Brian Croke, Susanna Elm, Hugh Elton, Geoffrey Greatrex, Peter J. Heather, Kenneth G. Holum, Caroline Humfress, Scott F. Johnson, Christopher Kelly, Étienne De La Vaissière, Noel Lenski, Michael Maas, Maya Maskarinec, Andy Merrills, Richard Payne, Walter Pohl, Michele Renee Salzman, Joseph E. Sanzo, Peter Sarris, Raymond Van Dam, Edward Watts, Susan Wessel
- Edited by Michael Maas, Rice University, Houston
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- The Cambridge Companion to the Age of Attila
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- 05 October 2014
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- 29 September 2014, pp xiii-xiv
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- Edited by Hiltrud Otto, Hebrew University of Jerusalem, Heidi Keller, Universität Osnabrück
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- Different Faces of Attachment
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- 05 August 2014
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- 17 July 2014, pp x-xv
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Gas inflow and AGN-driven outflow in M51
- M. Querejeta, S. E. Meidt, E. Schinnerer, S. García-Burillo, J. Pety, A. Hughes, D. Meier, F. Bigiel, K. Kreckel, G. Blanc
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- Proceedings of the International Astronomical Union / Volume 10 / Issue S309 / July 2014
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- 09 February 2015, p. 338
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- July 2014
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We study the feeding and feedback of the nucleus of M51 by considering gravitational torques, responsible for gas inflow, in relation to the local distribution of dense gas.
Contributors
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- By Ioannis P. Androulakis, Djillali Annane, Gérard Audibert, Lisa L. Barnes, Paolo Bartolomeo, Walter S. Bartynski, David A. Bennett, Nicolas Bruder, Nathan E. Brummel, Steve E. Calvano, Alain Cariou, F. Chretien, Jan Claassen, Colm Cunningham, Souhayl Dahmani, Robert Dantzer, Dimitry S. Davydow, Sanjay V. Desai, E. Wesley Ely, Frédéric Faugeras, Karen J. Ferguson, Brandon Foreman, Sadanand M. Gaikwad, Rebecca F. Gottesman, Maura A. Grega, Richard D. Griffiths, Marion Griton, Stefan D. Gurney, Hebah M. Hefzy, Michael T. Heneka, Dustin M. Hipp, Ramona O. Hopkins, Christopher G. Hughes, James C. Jackson, Christina Jones, Peter W. Kaplan, Keith W. Kelley, Raymond C. Koehler, Matthew A. Koenig, Jan Pieter Konsman, Felix Kork, John P. Kress, Stephen F. Lowry, Alawi Luetz, David Luis, Alasdair M. J. MacLullich, Guy M. McKhann, Jean Mantz, Panteleimon D. Mavroudis, Mervyn Maze, Bruno Mégarbane, Lionel Naccache, Dale M. Needham, Pratik P. Pandharipande, Jean-Francois Payen, V. Hugh Perry, Margaret Pisani, C. Rauturier, Benjamin Rohaut, Jennifer Ryan, Robert D. Sanders, Jeremy D. Scheff, Frederic Sedel, Ola A. Selnes, Tarek Sharshar, Martin Siegemund, Yoanna Skrobik, Jamie W. Sleigh, Romain Sonneville, Claudia D. Spies, Luzius A. Steiner, Robert D. Stevens, Raoul Sutter, Fabio Silvio Taccone, Richard E. Temes, Willem A. van Gool, Christel C. Vanbesien, F. Verdonk, Odile Viltart, Julia Wendon, Catherine N. Widmann, Robert S. Wilson
- Edited by Robert D. Stevens, Tarek Sharshar, E. Wesley Ely, Vanderbilt University, Tennessee
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- Brain Disorders in Critical Illness
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- 05 October 2013
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- 19 September 2013, pp viii-xii
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- By David Amigoni, Mark Asquith, Jane Bownas, Adelene Buckland, Carolyn Burdett, Pamela Dalziel, Christine DeVine, Tim Dolin, Roger Ebbatson, Trish Ferguson, Shanyn Fiske, Simon Gatrell, Sophie Gilmartin, William Greenslade, Ann Heilmann, Michael Herbert, John Hughes, Rena Jackson, Elizabeth Langland, Sarah E. Maier, Phillip Mallett, Francesco Marroni, Jane Mattisson, Andrew Nash, K. M. Newton, Francis O’Gorman, John Osborne, Patrick Parrinder, Andrew Radford, Fred Reid, Angelique Richardson, Mary Rimmer, Peter Robinson, Dennis Taylor, Jenny Bourne, Jane Thomas, Herbert F. Tucker, Norman Vance, Roger Webster, Rebecca Welshman, Glen Wickens, Melanie Williams, Keith Wilson, T. R. Wright
- Edited by Phillip Mallett, University of St Andrews, Scotland
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- Thomas Hardy in Context
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- 05 February 2013
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- 18 March 2013, pp ix-xvi
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An Updated View of Giant Molecular Clouds, Gas Flows and Star Formation in M51 with PAWS
- S. E. Meidt, E. Schinnerer, A. Hughes, D. Colombo, J. Pety, S. Garcia-Burillo, A. Leroy, C. L. Dobbs, K. F. Schuster, C. Kramer, G. Dumas, T. Thompson
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- Proceedings of the International Astronomical Union / Volume 8 / Issue S292 / August 2012
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- 21 March 2013, pp. 139-142
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- August 2012
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We present an overview of the latest results from the PdBI Arcsecond Whirlpool Survey (PAWS, PI: E. Schinnerer), which has mapped CO(1-0) emission in the nearby grand-design spiral galaxy M51 at 40pc resolution. Our data are sensitive to GMCs above 105 M⊙, allowing the construction of the largest GMC catalog to date – containing over 1500 objects – using the CPROPS algorithm (Rosolowsky & Leroy 2006). In the inner disk of M51, the properties of the CO emission show significant variation that can be linked to the dynamical environment in which the molecular gas is located. We find that dynamically distinct regions host clouds with different properties and exhibit different GMC mass spectra, as well as distinct patterns of star formation. To understand how this sensitivity to environment emerges, we consider the role of pressure on GMC stabilization (including shear and star formation feedback-driven turbulence). We suggest that, in the presence of significant external pressure, streaming motions driven by the spiral arm can act to reduce the surface pressure on clouds. The resulting stabilization impacts the global pattern of star formation and can account for the observed non-monotonic radial dependence of the gas depletion time. Our findings have implications for the observed scatter in the standard GMC relations and extragalactic star formation laws.