48 results
Everolimus for cardiac rhabdomyomas in children with tuberous sclerosis. The ORACLE study protocol (everOlimus for caRdiac rhAbdomyomas in tuberous sCLErosis): a randomised, multicentre, placebo-controlled, double-blind phase II trial
- Erica V. Stelmaszewski, Daniella B. Parente, Alberto Farina, Anna Stein, Anthony Gutierrez, Antonio F. Raquelo-Menegassio, Carla Manterola, Carolina F. de Sousa, Carolina Victor, Dina Maki, Elias M. Morón, Fabiano F. de Abrantes, Fatima Iqbal, Jazmin Camacho-Vilchez, Joanna Jimenez-Pavón, Juan P. Polania, Lorenzo Thompson, Lygia Bonanato, Matthias Diebold, Maria V. C. P. Da Silva, Mariam W. J. Nashwan, Marianna A. G. Galvani, Osama E. A. Idris, Pierina Danos, Rocio Ortiz-Lopez, Rofida A. A. Mahmoud, Sergio Gresse, Jr, Karla L. Loss
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- Journal:
- Cardiology in the Young / Volume 30 / Issue 3 / March 2020
- Published online by Cambridge University Press:
- 27 January 2020, pp. 337-345
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Introduction:
Tuberous sclerosis complex is a rare genetic disorder leading to the growth of hamartomas in multiple organs, including cardiac rhabdomyomas. Children with symptomatic cardiac rhabdomyoma require frequent admissions to intensive care units, have major complications, namely, arrhythmias, cardiac outflow tract obstruction and heart failure, affecting the quality of life and taking on high healthcare cost. Currently, there is no standard pharmacological treatment for this condition, and the management includes a conservative approach and supportive care. Everolimus has shown positive effects on subependymal giant cell astrocytomas, renal angiomyolipoma and refractory seizures associated with tuberous sclerosis complex. However, evidence supporting efficacy in symptomatic cardiac rhabdomyoma is limited to case reports. The ORACLE trial is the first randomised clinical trial assessing the efficacy of everolimus as a specific therapy for symptomatic cardiac rhabdomyoma.
Methods:ORACLE is a phase II, prospective, randomised, placebo-controlled, double-blind, multicentre protocol trial. A total of 40 children with symptomatic cardiac rhabdomyoma secondary to tuberous sclerosis complex will be randomised to receive oral everolimus or placebo for 3 months. The primary outcome is 50% or more reduction in the tumour size related to baseline. As secondary outcomes we include the presence of arrhythmias, pericardial effusion, intracardiac obstruction, adverse events, progression of tumour reduction and effect on heart failure.
Conclusions:ORACLE protocol addresses a relevant unmet need in children with tuberous sclerosis complex and cardiac rhabdomyoma. The results of the trial will potentially support the first evidence-based therapy for this condition.
An Examination of the Composition and Microstructure of Coarse Intermetallic Particles in AA2099-T8, Including Li Detection
- Colin M. MacRae, Anthony E. Hughes, James S. Laird, A. M. Glenn, Nicholas C. Wilson, Aaron Torpy, Mark A. Gibson, Xiaorong Zhou, Nick Birbilis, George E. Thompson
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- Journal:
- Microscopy and Microanalysis / Volume 24 / Issue 4 / August 2018
- Published online by Cambridge University Press:
- 18 June 2018, pp. 325-341
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- August 2018
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Electron and proton microprobes, along with electron backscatter diffraction (EBSD) analysis were used to study the microstructure of the contemporary Al–Cu–Li alloy AA2099-T8. In electron probe microanalysis, wavelength and energy dispersive X-ray spectrometry were used in parallel with soft X-ray emission spectroscopy (SXES) to characterize the microstructure of AA2099-T8. The electron microprobe was able to identify five unique compositions for constituent intermetallic (IM) particles containing combinations of Al, Cu, Fe, Mn, and Zn. A sixth IM type was found to be rich in Ti and B (suggesting TiB2), and a seventh IM type contained Si. EBSD patterns for the five constituent IM particles containing Al, Cu, Fe, Mn, and Zn indicated that they were isomorphous with four phases in the 2xxx series aluminium alloys including Al6(Fe, Mn), Al13(Fe, Mn)4 (two slightly different compositions), Al37Cu2Fe12 and Al7Cu2Fe. SXES revealed that Li was present in some constituent IM particles. Al SXES mapping revealed an Al-enriched (i.e., Cu, Li-depleted) zone in the grain boundary network. From the EBSD analysis, the kernel average misorientation map showed higher levels of localized misorientation in this region, suggesting greater deformation or stored energy. Proton-induced X-ray emission revealed banding of the TiB2 IM particles and Cu inter-band enrichment.
Safety of tracheal intubation in the presence of cardiac disease in paediatric ICUs
- Eleanor A. Gradidge, Adnan Bakar, David Tellez, Michael Ruppe, Sarah Tallent, Geoffrey Bird, Natasha Lavin, Anthony Lee, Vinay Nadkarni, Michelle Adu-Darko, Jesse Bain, Katherine Biagas, Aline Branca, Ryan K. Breuer, Calvin Brown III, Kris Bysani, Guillaume Emeriaud, Sandeep Gangadharan, John S. Giuliano, Jr, Joy D. Howell, Conrad Krawiec, Jan Hau Lee, Simon Li, Keith Meyer, Michael Miksa, Natalie Napolitano, Sholeen Nett, Gabrielle Nuthall, Alberto Orioles, Erin B. Owen, Margaret M. Parker, Simon Parsons, Lee A. Polikoff, Kyle Rehder, Osamu Saito, Ron C. Sanders, Jr, Asha Shenoi, Dennis W. Simon, Peter W. Skippen, Keiko Tarquinio, Anne Thompson, Iris Toedt-Pingel, Karen Walson, Akira Nishisaki, For National Emergency Airway Registry for Children (NEARKIDS) Investigators and Pediatric Acute Lung Injury and Sepsis Investigators (PALISI)
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- Journal:
- Cardiology in the Young / Volume 28 / Issue 7 / July 2018
- Published online by Cambridge University Press:
- 25 April 2018, pp. 928-937
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Introduction
Children with CHD and acquired heart disease have unique, high-risk physiology. They may have a higher risk of adverse tracheal-intubation-associated events, as compared with children with non-cardiac disease.
Materials and methodsWe sought to evaluate the occurrence of adverse tracheal-intubation-associated events in children with cardiac disease compared to children with non-cardiac disease. A retrospective analysis of tracheal intubations from 38 international paediatric ICUs was performed using the National Emergency Airway Registry for Children (NEAR4KIDS) quality improvement registry. The primary outcome was the occurrence of any tracheal-intubation-associated event. Secondary outcomes included the occurrence of severe tracheal-intubation-associated events, multiple intubation attempts, and oxygen desaturation.
ResultsA total of 8851 intubations were reported between July, 2012 and March, 2016. Cardiac patients were younger, more likely to have haemodynamic instability, and less likely to have respiratory failure as an indication. The overall frequency of tracheal-intubation-associated events was not different (cardiac: 17% versus non-cardiac: 16%, p=0.13), nor was the rate of severe tracheal-intubation-associated events (cardiac: 7% versus non-cardiac: 6%, p=0.11). Tracheal-intubation-associated cardiac arrest occurred more often in cardiac patients (2.80 versus 1.28%; p<0.001), even after adjusting for patient and provider differences (adjusted odds ratio 1.79; p=0.03). Multiple intubation attempts occurred less often in cardiac patients (p=0.04), and oxygen desaturations occurred more often, even after excluding patients with cyanotic heart disease.
ConclusionsThe overall incidence of adverse tracheal-intubation-associated events in cardiac patients was not different from that in non-cardiac patients. However, the presence of a cardiac diagnosis was associated with a higher occurrence of both tracheal-intubation-associated cardiac arrest and oxygen desaturation.
The Love of Money and Pay Level Satisfaction: Measurement and Functional Equivalence in 29 Geopolitical Entities around the World
- Part of
- Thomas Li-Ping Tang, Toto Sutarso, Adebowale Akande, Michael W. Allen, Abdulgawi Salim Alzubaidi, Mahfooz A. Ansari, Fernando Arias-Galicia, Mark G. Borg, Luigina Canova, Brigitte Charles-Pauvers, Bor-Shiuan Cheng, Randy K. Chiu, Linzhi Du, Ilya Garber, Consuelo Garcia De La Torre, Rosario Correia Higgs, Abdul Hamid Safwat Ibrahim, Chin-Kang Jen, Ali Mahdi Kazem, Kilsun Kim, Vivien Kim Geok Lim, Roberto Luna-Arocas, Eva Malovics, Anna Maria Manganelli, Alice S. Moreira, Anthony Ugochukwu Obiajulu Nnedum, Johnsto E. Osagie, AAhad M. Osman-Gani, Francisco Costa Pereira, Ruja Pholsward, Horia D. Pitariu, Marko Polic, Elisaveta Sardzoska, Petar Skobic, Allen F. Stembridge, Theresa Li-Na Tang, Thompson Sian Hin Teo, Marco Tombolani, Martina Trontelj, Caroline Urbain, Peter Vlerick, translated by 汤立平, translated by 郑伯垠, translated by 赵其琨, translated by 杜林致, translated by 任金﨓, translated by 林金玉, translated by 汤张面娜, translated by 赵善兴
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- Management and Organization Review / Volume 2 / Issue 3 / November 2006
- Published online by Cambridge University Press:
- 02 February 2015, pp. 423-452
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Demonstrating the equivalence of constructs is a key requirement for cross-cultural empirical research. The major purpose of this paper is to demonstrate how to assess measurement and functional equivalence or invariance using the 9-item, 3-factor Love of Money Scale (LOMS, a second-order factor model) and the 4-item, 1-factor Pay Level Satisfaction Scale (PLSS, a first-order factor model) across 29 samples in six continents (N = 5973). In step 1, we tested the configural, metric and scalar invariance of the LOMS and 17 samples achieved measurement invariance. In step 2, we applied the same procedures to the PLSS and nine samples achieved measurement invariance. Five samples (Brazil, China, South Africa, Spain and the USA) passed the measurement invariance criteria for both measures. In step 3, we found that for these two measures, common method variance was non-significant. In step 4, we tested the functional equivalence between the Love of Money Scale and Pay Level Satisfaction Scale. We achieved functional equivalence for these two scales in all five samples. The results of this study suggest the critical importance of evaluating and establishing measurement equivalence in cross-cultural studies. Suggestions for remedying measurement non-equivalence are offered.
Contributors
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- By Kate Barth, Janet Benshoof, Rosa Brooks, Krystel Carrier, Roméo A. Dallaire, Anthony W. Gambino, Richard Gowan, Mohamed S. Helal, Søren Jessen-Petersen, Mari Katayanagi, Philippe Kirsch, Axel Marschik, Geoffrey Nice, Paulo Sérgio Pinheiro, Bertrand G. Ramcharan, José Ramos-Horta, Benedict Rogers, William A. Schabas, Shamala Kandiah Thompson, Nena Tromp
- Edited by Jared Genser, Bruno Stagno Ugarte
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- Book:
- The United Nations Security Council in the Age of Human Rights
- Published online:
- 05 June 2014
- Print publication:
- 05 June 2014, pp ix-xvi
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- By Frank Andrasik, Melissa R. Andrews, Ana Inés Ansaldo, Evangelos G. Antzoulatos, Lianhua Bai, Ellen Barrett, Linamara Battistella, Nicolas Bayle, Michael S. Beattie, Peter J. Beek, Serafin Beer, Heinrich Binder, Claire Bindschaedler, Sarah Blanton, Tasia Bobish, Michael L. Boninger, Joseph F. Bonner, Chadwick B. Boulay, Vanessa S. Boyce, Anna-Katharine Brem, Jacqueline C. Bresnahan, Floor E. Buma, Mary Bartlett Bunge, John H. Byrne, Jeffrey R. Capadona, Stefano F. Cappa, Diana D. Cardenas, Leeanne M. Carey, S. Thomas Carmichael, Glauco A. P. Caurin, Pablo Celnik, Kimberly M. Christian, Stephanie Clarke, Leonardo G. Cohen, Adriana B. Conforto, Rory A. Cooper, Rosemarie Cooper, Steven C. Cramer, Armin Curt, Mark D’Esposito, Matthew B. Dalva, Gavriel David, Brandon Delia, Wenbin Deng, Volker Dietz, Bruce H. Dobkin, Marco Domeniconi, Edith Durand, Tracey Vause Earland, Georg Ebersbach, Jonathan J. Evans, James W. Fawcett, Uri Feintuch, Toby A. Ferguson, Marie T. Filbin, Diasinou Fioravante, Itzhak Fischer, Agnes Floel, Herta Flor, Karim Fouad, Richard S. J. Frackowiak, Peter H. Gorman, Thomas W. Gould, Jean-Michel Gracies, Amparo Gutierrez, Kurt Haas, C.D. Hall, Hans-Peter Hartung, Zhigang He, Jordan Hecker, Susan J. Herdman, Seth Herman, Leigh R. Hochberg, Ahmet Höke, Fay B. Horak, Jared C. Horvath, Richard L. Huganir, Friedhelm C. Hummel, Beata Jarosiewicz, Frances E. Jensen, Michael Jöbges, Larry M. Jordan, Jon H. Kaas, Andres M. Kanner, Noomi Katz, Matthew S. Kayser, Annmarie Kelleher, Gerd Kempermann, Timothy E. Kennedy, Jürg Kesselring, Fary Khan, Rachel Kizony, Jeffery D. Kocsis, Boudewijn J. Kollen, Hubertus Köller, John W. Krakauer, Hermano I. Krebs, Gert Kwakkel, Bradley Lang, Catherine E. Lang, Helmar C. Lehmann, Angelo C. Lepore, Glenn S. Le Prell, Mindy F. Levin, Joel M. Levine, David A. Low, Marilyn MacKay-Lyons, Jeffrey D. Macklis, Margaret Mak, Francine Malouin, William C. Mann, Paul D. Marasco, Christopher J. Mathias, Laura McClure, Jan Mehrholz, Lorne M. Mendell, Robert H. Miller, Carol Milligan, Beth Mineo, Simon W. Moore, Jennifer Morgan, Charbel E-H. Moussa, Martin Munz, Randolph J. Nudo, Joseph J. Pancrazio, Theresa Pape, Alvaro Pascual-Leone, Kristin M. Pearson-Fuhrhop, P. Hunter Peckham, Tamara L. Pelleshi, Catherine Verrier Piersol, Thomas Platz, Marcus Pohl, Dejan B. Popović, Andrew M. Poulos, Maulik Purohit, Hui-Xin Qi, Debbie Rand, Mahendra S. Rao, Josef P. Rauschecker, Aimee Reiss, Carol L. Richards, Keith M. Robinson, Melvyn Roerdink, John C. Rosenbek, Serge Rossignol, Edward S. Ruthazer, Arash Sahraie, Krishnankutty Sathian, Marc H. Schieber, Brian J. Schmidt, Michael E. Selzer, Mijail D. Serruya, Himanshu Sharma, Michael Shifman, Jerry Silver, Thomas Sinkjær, George M. Smith, Young-Jin Son, Tim Spencer, John D. Steeves, Oswald Steward, Sheela Stuart, Austin J. Sumner, Chin Lik Tan, Robert W. Teasell, Gareth Thomas, Aiko K. Thompson, Richard F. Thompson, Wesley J. Thompson, Erika Timar, Ceri T. Trevethan, Christopher Trimby, Gary R. Turner, Mark H. Tuszynski, Erna A. van Niekerk, Ricardo Viana, Difei Wang, Anthony B. Ward, Nick S. Ward, Stephen G. Waxman, Patrice L. Weiss, Jörg Wissel, Steven L. Wolf, Jonathan R. Wolpaw, Sharon Wood-Dauphinee, Ross D. Zafonte, Binhai Zheng, Richard D. Zorowitz
- Edited by Michael Selzer, Stephanie Clarke, Leonardo Cohen, Gert Kwakkel, Robert Miller, Case Western Reserve University, Ohio
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- Textbook of Neural Repair and Rehabilitation
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- 05 May 2014
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- 24 April 2014, pp ix-xvi
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- By Frank Andrasik, Melissa R. Andrews, Ana Inés Ansaldo, Evangelos G. Antzoulatos, Lianhua Bai, Ellen Barrett, Linamara Battistella, Nicolas Bayle, Michael S. Beattie, Peter J. Beek, Serafin Beer, Heinrich Binder, Claire Bindschaedler, Sarah Blanton, Tasia Bobish, Michael L. Boninger, Joseph F. Bonner, Chadwick B. Boulay, Vanessa S. Boyce, Anna-Katharine Brem, Jacqueline C. Bresnahan, Floor E. Buma, Mary Bartlett Bunge, John H. Byrne, Jeffrey R. Capadona, Stefano F. Cappa, Diana D. Cardenas, Leeanne M. Carey, S. Thomas Carmichael, Glauco A. P. Caurin, Pablo Celnik, Kimberly M. Christian, Stephanie Clarke, Leonardo G. Cohen, Adriana B. Conforto, Rory A. Cooper, Rosemarie Cooper, Steven C. Cramer, Armin Curt, Mark D’Esposito, Matthew B. Dalva, Gavriel David, Brandon Delia, Wenbin Deng, Volker Dietz, Bruce H. Dobkin, Marco Domeniconi, Edith Durand, Tracey Vause Earland, Georg Ebersbach, Jonathan J. Evans, James W. Fawcett, Uri Feintuch, Toby A. Ferguson, Marie T. Filbin, Diasinou Fioravante, Itzhak Fischer, Agnes Floel, Herta Flor, Karim Fouad, Richard S. J. Frackowiak, Peter H. Gorman, Thomas W. Gould, Jean-Michel Gracies, Amparo Gutierrez, Kurt Haas, C.D. Hall, Hans-Peter Hartung, Zhigang He, Jordan Hecker, Susan J. Herdman, Seth Herman, Leigh R. Hochberg, Ahmet Höke, Fay B. Horak, Jared C. Horvath, Richard L. Huganir, Friedhelm C. Hummel, Beata Jarosiewicz, Frances E. Jensen, Michael Jöbges, Larry M. Jordan, Jon H. Kaas, Andres M. Kanner, Noomi Katz, Matthew S. Kayser, Annmarie Kelleher, Gerd Kempermann, Timothy E. Kennedy, Jürg Kesselring, Fary Khan, Rachel Kizony, Jeffery D. Kocsis, Boudewijn J. Kollen, Hubertus Köller, John W. Krakauer, Hermano I. Krebs, Gert Kwakkel, Bradley Lang, Catherine E. Lang, Helmar C. Lehmann, Angelo C. Lepore, Glenn S. Le Prell, Mindy F. Levin, Joel M. Levine, David A. Low, Marilyn MacKay-Lyons, Jeffrey D. Macklis, Margaret Mak, Francine Malouin, William C. Mann, Paul D. Marasco, Christopher J. Mathias, Laura McClure, Jan Mehrholz, Lorne M. Mendell, Robert H. Miller, Carol Milligan, Beth Mineo, Simon W. Moore, Jennifer Morgan, Charbel E-H. Moussa, Martin Munz, Randolph J. Nudo, Joseph J. Pancrazio, Theresa Pape, Alvaro Pascual-Leone, Kristin M. Pearson-Fuhrhop, P. Hunter Peckham, Tamara L. Pelleshi, Catherine Verrier Piersol, Thomas Platz, Marcus Pohl, Dejan B. Popović, Andrew M. Poulos, Maulik Purohit, Hui-Xin Qi, Debbie Rand, Mahendra S. Rao, Josef P. Rauschecker, Aimee Reiss, Carol L. Richards, Keith M. Robinson, Melvyn Roerdink, John C. Rosenbek, Serge Rossignol, Edward S. Ruthazer, Arash Sahraie, Krishnankutty Sathian, Marc H. Schieber, Brian J. Schmidt, Michael E. Selzer, Mijail D. Serruya, Himanshu Sharma, Michael Shifman, Jerry Silver, Thomas Sinkjær, George M. Smith, Young-Jin Son, Tim Spencer, John D. Steeves, Oswald Steward, Sheela Stuart, Austin J. Sumner, Chin Lik Tan, Robert W. Teasell, Gareth Thomas, Aiko K. Thompson, Richard F. Thompson, Wesley J. Thompson, Erika Timar, Ceri T. Trevethan, Christopher Trimby, Gary R. Turner, Mark H. Tuszynski, Erna A. van Niekerk, Ricardo Viana, Difei Wang, Anthony B. Ward, Nick S. Ward, Stephen G. Waxman, Patrice L. Weiss, Jörg Wissel, Steven L. Wolf, Jonathan R. Wolpaw, Sharon Wood-Dauphinee, Ross D. Zafonte, Binhai Zheng, Richard D. Zorowitz
- Edited by Michael E. Selzer, Stephanie Clarke, Leonardo G. Cohen, Gert Kwakkel, Robert H. Miller, Case Western Reserve University, Ohio
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- Textbook of Neural Repair and Rehabilitation
- Published online:
- 05 June 2014
- Print publication:
- 24 April 2014, pp ix-xvi
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- By Ghazi Al-Rawas, Vazken Andréassian, Tianqi Ao, Stacey A. Archfield, Berit Arheimer, András Bárdossy, Trent Biggs, Günter Blöschl, Theresa Blume, Marco Borga, Helge Bormann, Gianluca Botter, Tom Brown, Donald H. Burn, Sean K. Carey, Attilio Castellarin, Francis Chiew, François Colin, Paulin Coulibaly, Armand Crabit, Barry Croke, Siegfried Demuth, Qingyun Duan, Giuliano Di Baldassarre, Thomas Dunne, Ying Fan, Xing Fang, Boris Gartsman, Alexander Gelfan, Mikhail Georgievski, Nick van de Giesen, David C. Goodrich, Hoshin V. Gupta, Khaled Haddad, David M. Hannah, H. A. P. Hapuarachchi, Hege Hisdal, Kamila Hlavčová, Markus Hrachowitz, Denis A. Hughes, Günter Humer, Ruud Hurkmans, Vito Iacobellis, Elena Ilyichyova, Hiroshi Ishidaira, Graham Jewitt, Shaofeng Jia, Jeffrey R. Kennedy, Anthony S. Kiem, Robert Kirnbauer, Thomas R. Kjeldsen, Jürgen Komma, Leonid M. Korytny, Charles N. Kroll, George Kuczera, Gregor Laaha, Henny A. J. van Lanen, Hjalmar Laudon, Jens Liebe, Shijun Lin, Göran Lindström, Suxia Liu, Jun Magome, Danny G. Marks, Dominic Mazvimavi, Jeffrey J. McDonnell, Brian L. McGlynn, Kevin J. McGuire, Neil McIntyre, Thomas A. McMahon, Ralf Merz, Robert A. Metcalfe, Alberto Montanari, David Morris, Roger Moussa, Lakshman Nandagiri, Thomas Nester, Taha B. M. J. Ouarda, Ludovic Oudin, Juraj Parajka, Charles S. Pearson, Murray C. Peel, Charles Perrin, John W. Pomeroy, David A. Post, Ataur Rahman, Liliang Ren, Magdalena Rogger, Dan Rosbjerg, José Luis Salinas, Jos Samuel, Eric Sauquet, Hubert H. G. Savenije, Takahiro Sayama, John C. Schaake, Kevin Shook, Murugesu Sivapalan, Jon Olav Skøien, Chris Soulsby, Christopher Spence, R. ‘Sri’ Srikanthan, Tammo S. Steenhuis, Jan Szolgay, Yasuto Tachikawa, Kuniyoshi Takeuchi, Lena M. Tallaksen, Dörthe Tetzlaff, Sally E. Thompson, Elena Toth, Peter A. Troch, Remko Uijlenhoet, Carl L. Unkrich, Alberto Viglione, Neil R. Viney, Richard M. Vogel, Thorsten Wagener, M. Todd Walter, Guoqiang Wang, Markus Weiler, Rolf Weingartner, Erwin Weinmann, Hessel Winsemius, Ross A. Woods, Dawen Yang, Chihiro Yoshimura, Andy Young, Gordon Young, Erwin Zehe, Yongqiang Zhang, Maichun C. Zhou
- Edited by Günter Blöschl, Technische Universität Wien, Austria, Murugesu Sivapalan, University of Illinois, Urbana-Champaign, Thorsten Wagener, University of Bristol, Alberto Viglione, Technische Universität Wien, Austria, Hubert Savenije, Technische Universiteit Delft, The Netherlands
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- Runoff Prediction in Ungauged Basins
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- 05 April 2013
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- 18 April 2013, pp ix-xiv
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- By Krista Adamek, Ana Luisa K. Albernaz, J. Marcio Ayres†, Andrew J. Baker, Karen L. Bales, Adrian A. Barnett, Christopher Barton, John M. Bates, Jennie Becker, Bruna M. Bezerra, Júlio César Bicca-Marques, Richard Bodmer, Jean P. Boubli, Mark Bowler, Sarah A. Boyle, Christini Barbosa Caselli, Janice Chism, Elena P. Cunningham, José Maria C. da Silva, Lesa C. Davies, Nayara de Alcântara Cardoso, Manuella A. de Souza, Stella de la Torre, Ana Gabriela de Luna, Thomas R. Defler, Anthony Di Fiore, Eduardo Fernandez-Duque, Stephen F. Ferrari, Wilsea M.B. Figueiredo-Ready, Tracy Frampton, Paul A. Garber, Brian W. Grafton, L. Tremaine Gregory, Maria L. Harada, Amy Harrison-Levine, Walter C. Hartwig, Stefanie Heiduck, Eckhard W. Heymann, André Hirsch, Leandro Jerusalinsky, Gareth Jones, Richard F. Kay, Martin M. Kowalewski, Shawn M. Lehman, Laura Marsh, Jesús Martinez, William A. Mason, Hope Matthews, Wynlyn McBride, Shona McCann-Wood, W. Scott McGraw, D. Jeffrey Meldrum, Sally P. Mendoza, Nohelia Mercado, Russell A. Mittermeier, Mirjam N. Nadjafzadeh, Marilyn A. Norconk, Robert Gary Norman, Marcela Oliveira, Marcelo M. Oliveira, Maria Juliana Ospina Rodríguez, Erwin Palacios, Suzanne Palminteri, Liliam P. Pinto, Marcio Port-Carvalho, Leila Porter, Carlos Portillo-Quintero, George Powell, Ghillean T. Prance, Rodrigo C. Printes, Pablo Puertas, P. Kirsten Pullen, Helder L. Queiroz, Luis Reginaldo R. Rodrigues, Adriana Rodríguez, Alfred L. Rosenberger, Anthony B. Rylands, Ricardo R. Santos, Horacio Schneider, Eleonore Z.F. Setz, Suleima S.B. Silva, José S. Silva Júnior, Andrew T. Smith, Marcelo C. Sousa, Antonio S. Souto, Wilson R. Spironello, Masanaru Takai, Marcelo F. Tejedor, Cynthia L. Thompson, Diego G. Tirira, Raul Tupayachi, Bernardo Urbani, Liza M. Veiga, Marianela Velilla, João Valsecchi, Jean-Christophe Vié, Tatiana M. Vieira, Suzanne E. Walker-Pacheco, Rob Wallace, Patricia C. Wright, Charles E. Zartman
- Edited by Liza M. Veiga, Universidade Federal do Pará, Brazil, Adrian A. Barnett, Roehampton University, London, Stephen F. Ferrari, Universidade Federal de Sergipe, Brazil, Marilyn A. Norconk, Kent State University, Ohio
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- Book:
- Evolutionary Biology and Conservation of Titis, Sakis and Uacaris
- Published online:
- 05 April 2013
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- 11 April 2013, pp xii-xv
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Laser Flash Analysis Determination of the Thermal Diffusivity of Si/SiGe Superlattices
- Anthony L. Davidson III, James P. Thomas, Terrance Worchesky, Mark E. Twigg, Phillip E. Thompson
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- Journal:
- MRS Online Proceedings Library Archive / Volume 1490 / 2013
- Published online by Cambridge University Press:
- 18 February 2013, pp. 45-50
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- 2013
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Applications that produce a large amount of heat, such as combustion engines, can benefit from high temperature thermoelectrics to reduce the amount of energy lost. Superlattice (SL) structures have shown reduced thermal conductivity at room temperature and below, suggesting applicability at high temperatures may be possible. This reduction could greatly increase the thermoelectric figure of merit. The Si/SiGe material system is studied here for high temperature application. Two growth temperatures of 300 C and 500 C are examined. Two superlattice periods were studied (8 nm and 20 nm) to determine the effects of lattice spacing on thermal conductivity. Laser Flash Analysis is applied to determine the thermal diffusivity, hence thermal conductivity, from 100 C to 500 C. Thermal diffusivity was found to be an order of magnitude lower than the constituent alloy at 100 C. Superlattice spacing and growth temperature showed little effect on the diffusivity within the error of this measurement.
16 - Healthy planning
- from Part II - Key Issues
- Susan Thompson, University of New South Wales, Sydney, Paul Maginn, University of Western Australia, Perth
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- Planning Australia
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- 05 June 2012
- Print publication:
- 17 February 2012, pp 381-408
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Summary
Key terms: healthy built environments; healthy planning; public health; determinants of health; burden of disease; obesity; chronic disease; physical activity; social connection.
Although human health is a new connection for planning in Australia today, a century ago planning was strongly aligned with public health objectives to prevent the spread of infectious disease. This close relationship was not, however, sustained. Planning shifted its focus to urban policy development, design and environmental sustainability, while public health largely pursued a medical model (Botchwey et al. 2009). Today, we face a different set of health problems associated with our sedentary and automobile-dependent lifestyles, and the two disciplines are gradually re-aligning as evidence mounts about the critical role that the built environment plays in supporting human health.
So what makes a healthy place in Australia and how can planning contribute to the creation of such places? In this chapter we explore these questions– initially by defining the concept of ‘healthy planning’ and providing a brief overview of its evolution. Contemporary Australian health patterns are then presented, setting the context for considering the role of the environment in supporting good health as part of everyday life. The chapter concludes with key challenges for healthy planning.
Mothers' physical abusiveness in a context of violence: Effects on the mother–child relationship
- Susan G. Timmer, Dianne Thompson, Michelle A. Culver, Anthony J. Urquiza, Shannon Altenhofen
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- Journal:
- Development and Psychopathology / Volume 24 / Issue 1 / February 2012
- Published online by Cambridge University Press:
- 31 January 2012, pp. 79-92
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The purpose of this study was to investigate the effects of mothers' physical abusiveness on the quality of the mother–child relationship, and note how it further varied by their exposure to interparental violence (IPV). The sample consisted of 232 clinic-referred children, aged 2 to 7 years, and their biological mothers. Slightly more than a quarter of the children (N = 63, 27.2%) had been physically abused by their mothers; approximately half of these children also had a history of exposure to IPV (N = 34, 54%). Investigating effects of physical abuse in the context of IPV history on mothers' and children's emotional availability, we found that physically abused children with no IPV exposure appeared less optimally emotionally available than physically abused children with an IPV exposure. However, subsequent analyses showed that although dyads with dual-violence exposure showed emotional availability levels similar those of nonabusive dyads, they were more overresponsive and overinvolving, a kind of caregiving controllingness charasteric of children with disorganized attachment styles. These findings lend some support to the notion that the effects of abuse on the parent–child relationship are influenced by the context of family violence, although the effects appear to be complex.
Towards an integrated materials characterization toolbox
- Ian M. Robertson, Christopher A. Schuh, John S. Vetrano, Nigel D. Browning, David P. Field, Dorte Juul Jensen, Michael K. Miller, Ian Baker, David C. Dunand, Rafal Dunin-Borkowski, Bernd Kabius, Tom Kelly, Sergio Lozano-Perez, Amit Misra, Gregory S. Rohrer, Anthony D. Rollett, Mitra L. Taheri, Greg B. Thompson, Michael Uchic, Xun-Li Wang, Gary Was
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- Journal:
- Journal of Materials Research / Volume 26 / Issue 11 / 14 June 2011
- Published online by Cambridge University Press:
- 07 June 2011, pp. 1341-1383
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- 14 June 2011
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The material characterization toolbox has recently experienced a number of parallel revolutionary advances, foreshadowing a time in the near future when material scientists can quantify material structure evolution across spatial and temporal space simultaneously. This will provide insight to reaction dynamics in four-dimensions, spanning multiple orders of magnitude in both temporal and spatial space. This study presents the authors’ viewpoint on the material characterization field, reviewing its recent past, evaluating its present capabilities, and proposing directions for its future development. Electron microscopy; atom probe tomography; x-ray, neutron and electron tomography; serial sectioning tomography; and diffraction-based analysis methods are reviewed, and opportunities for their future development are highlighted. Advances in surface probe microscopy have been reviewed recently and, therefore, are not included [D.A. Bonnell et al.: Rev. Modern Phys. in Review]. In this study particular attention is paid to studies that have pioneered the synergetic use of multiple techniques to provide complementary views of a single structure or process; several of these studies represent the state-of-the-art in characterization and suggest a trajectory for the continued development of the field. Based on this review, a set of grand challenges for characterization science is identified, including suggestions for instrumentation advances, scientific problems in microstructure analysis, and complex structure evolution problems involving material damage. The future of microstructural characterization is proposed to be one not only where individual techniques are pushed to their limits, but where the community devises strategies of technique synergy to address complex multiscale problems in materials science and engineering.
11 - The Continuum of Epithelial Mesenchymal Transition – Implication of Hybrid States for Migration and Survival in Development and Cancer
- from VARIOUS PROPERTIES OF CANCER CELLS
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- By Lilian Soon, The University of Sydney, Australia, Anthony Tachtsidis, University of Melbourne, Australia, Sandra Fok, The University of Sydney, Australia, Elizabeth D. Williams, Monash University, Australia, Donald F. Newgreen, Royal Children's Hospital, Australia, Erik W. Thompson, University of Melbourne, Australia
- Edited by David Lyden, Danny R. Welch, Bethan Psaila
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- Cancer Metastasis
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- 05 June 2012
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- 25 April 2011, pp 117-130
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EMT AND CELL MIGRATION – EMBRYONIC NECESSITIES CO-OPTED BY INVASIVE CANCER
The concept of the epithelial–mesenchymal transition (EMT) originated from studies of events in development, particularly those preceding the onset of cell migration [1]. These were initially brought together and popularized by the efforts of the late Elizabeth Hay and colleagues [2, 3]. One of the most intensively studied examples of EMT and cell migration is the generation of migratory neural crest mesenchyme from the neurectodermal epithelium [4] (Figure 11.1). These cells go on to form the autonomic and sensory nervous systems. Even prior to this, the emergence of the primary mesenchyme from the epithelial epiblast during gastrulation (the first EMT) results in the formation of highly motile cells that are critical to the development of the body plan [1] (Figure 11.2A). Further EMTs occur in other epithelia after the neural crest EMT to generate the cells that form muscle, bone, and connective tissues (Figure 11.2B). Such cellular plasticity is fundamental to embryological development and is regulated largely at the transcriptional level. Various transcriptional repressors of E-cadherin (and other cadherins), such as Snail (Snail 1), Slug (Snail 2), Twist, Zeb1 (δEF1), Zeb2 (SIP), and E47/E12, regulate EMT in developmental system (reviewed in [5]).
Commitment to lineage differentiation in normal cells is more pliant than first thought, and cellular transition is emerging as a major mechanism of adult tissue homeostasis [6].
Index
- Derek Ward-Thompson, University of Central Lancashire, Preston, Anthony P. Whitworth, Cardiff University
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- An Introduction to Star Formation
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- 05 June 2012
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- 10 February 2011, pp 205-208
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6 - Young stars, protostars and accretion – building a typical star
- Derek Ward-Thompson, University of Central Lancashire, Preston, Anthony P. Whitworth, Cardiff University
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- An Introduction to Star Formation
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- 05 June 2012
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- 10 February 2011, pp 117-142
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Summary
Pre-main-sequence evolution
In this chapter we follow the evolution from a collapsing core in a molecular cloud to a newly formed star as it approaches the main sequence on the Hertzsprung–Russell (HR) diagram. Figure 6.1 sketches the paths followed during the various evolutionary stages on an HR diagram. In this section we briefly outline the various evolutionary stages, and in successive sections we deal with each stage in more detail.
Isothermal collapse
Once a pre-stellar core becomes gravitationally unstable and starts to collapse, then initially the released gravitational energy is freely radiated away and the collapsing fragment stays at roughly the same temperature (isothermal). Its temperature would place it on the right-hand side of the HR diagram (cool), and it has a relatively large radius and hence luminosity. Consequently, it should begin its evolution at the upper right of the HR diagram. Its luminosity is supplied by contraction and the consequent release of gravitational potential energy.
The isothermal collapse phase produces a central concentration of matter and ends with the formation of an opaque, hydrostatic object at the centre, surrounded by a gaseous envelope. We define a hydrostatic object as one which supports itself against gravity by its own internal pressure.
3 - The ISM – the beginnings of star formation
- Derek Ward-Thompson, University of Central Lancashire, Preston, Anthony P. Whitworth, Cardiff University
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- An Introduction to Star Formation
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- 05 June 2012
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- 10 February 2011, pp 39-64
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Introduction
In this chapter we take a more detailed look at the interstellar medium (ISM). We consider first the most abundant element in the Universe, hydrogen. We discuss the atomic hydrogen transition which occurs at 21 cm. We look at the 21-cm line in both absorption and emission. We then go on to consider the molecular gas and, in particular, the most abundant gas-phase molecule after hydrogen, carbon monoxide (CO). We also look at the use of absorption lines in the study of the ISM. In this context we consider some features of spectral lines, such as their equivalent widths, and we describe the curve of growth of a spectral line. In the next chapter we will go on to study the denser parts of the ISM, known as molecular clouds.
The 21-cm line of atomic hydrogen
The most abundant element in the Universe is hydrogen. We here discuss the main signature of cool atomic hydrogen, 21-cm line radiation. Figure 3.1 shows 21-cm images of some nearby galaxies, illustrating how the 21-cm radiation traces the atomic gas in the interstellar medium of these galaxies.
4 - Molecular clouds – the sites of star formation
- Derek Ward-Thompson, University of Central Lancashire, Preston, Anthony P. Whitworth, Cardiff University
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- An Introduction to Star Formation
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- 05 June 2012
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- 10 February 2011, pp 65-94
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Preface
- Derek Ward-Thompson, University of Central Lancashire, Preston, Anthony P. Whitworth, Cardiff University
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- An Introduction to Star Formation
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- 05 June 2012
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- 10 February 2011, pp xix-xx
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This book is directed at the student undertaking a course in star formation for the first time. This may be in the later years of an undergraduate degree in physics, astrophysics, or physics with astronomy. Alternatively, it may be that the student only meets this subject for the first time during the first years of a masters degree. In either case we have assumed that the student already has a grounding in physics and mathematics, including, for example, Maxwell's equations, quantum mechanics and the laws of thermodynamics. Nevertheless, we find from teaching experience that brief reminders to students of things they learnt in other courses are generally welcomed as helpful. Hence, we remind the reader of some of the important points from other branches of physics where they are relevant.
We assume only a minimal knowledge of astronomy, and we derive the necessary astrophysical equations as we go along. We assume no prior knowledge of the subject of star formation itself and begin from first principles. Throughout the book we attempt to stay on ground that is firmly established, and try to avoid that which is trendy or the latest discovery. Experience has taught us that these matters often become outdated much more quickly than the solid foundations on which the subject is based. In cases where we stray onto less sure footing, we inform the reader that we are doing so.
5 - Fragmentation and collapse – the road to star formation
- Derek Ward-Thompson, University of Central Lancashire, Preston, Anthony P. Whitworth, Cardiff University
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- An Introduction to Star Formation
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- 05 June 2012
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- 10 February 2011, pp 95-116
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The road to star formation
Thus far we have studied the places where stars form – molecular clouds. We have discussed the ways in which molecular clouds can be observed. We have explored the various constituents of molecular clouds – gas, dust, magnetic fields, cosmic rays and electromagnetic radiation. We have, so to speak, assembled the ingredients. In this chapter we discuss how these ingredients might come together to begin to form a star.
In the first half of the chapter we discuss theoretical considerations. We consider the collapse of an isothermal sphere of gas, ignoring the effects of rotation and magnetic fields, and we examine qualitatively what happens. We describe the method of solving the problem using similarity solutions.
We go on to discuss hierarchical fragmentation, as a means of breaking a large molecular cloud into an ensemble of stars. We also discuss the thermodynamics of protostellar gas, and explain how the minimum mass for star formation might be determined by the protostellar gas becoming optically thick to its own cooling radiation. We discuss the manner of the collapse to form a star and the possible effects of a magnetic field on this process.
In the second half of the chapter we examine some of the observational evidence. At the end we consider the initial mass function for stars. Note that in this chapter we concentrate mainly on relatively low-mass stars, i.e. stars of less than a few times the mass of the Sun. In Chapter 6 we continue to discuss relatively low-mass star formation.