26 results
What Should We Agree on about the Repugnant Conclusion?
- Stéphane Zuber, Nikhil Venkatesh, Torbjörn Tännsjö, Christian Tarsney, H. Orri Stefánsson, Katie Steele, Dean Spears, Jeff Sebo, Marcus Pivato, Toby Ord, Yew-Kwang Ng, Michal Masny, William MacAskill, Nicholas Lawson, Kevin Kuruc, Michelle Hutchinson, Johan E. Gustafsson, Hilary Greaves, Lisa Forsberg, Marc Fleurbaey, Diane Coffey, Susumu Cato, Clinton Castro, Tim Campbell, Mark Budolfson, John Broome, Alexander Berger, Nick Beckstead, Geir B. Asheim
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The Repugnant Conclusion is an implication of some approaches to population ethics. It states, in Derek Parfit's original formulation,
For any possible population of at least ten billion people, all with a very high quality of life, there must be some much larger imaginable population whose existence, if other things are equal, would be better, even though its members have lives that are barely worth living. (Parfit 1984: 388)
After Thought
- from Part III - The Future Imagined
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- By John Berger
- Edited by Karen J. Greenberg, Fordham University, New York
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- Reimagining the National Security State
- Published online:
- 25 October 2019
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- 07 November 2019, pp 185-186
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Summary
The chapters presented in this volume inform us about the many dimensions of national security in this transformative time. An overriding question emerges about how a national security state can effectively protect the citizens and institutions of a liberal democracy from perceived threats. But the conversation becomes challenging and unfocused when tactics such as torture, indefinite detention, extraordinary rendition, secret government surveillance, and Muslim bans are put forth as necessary to counter contemporary threats. Not only are these practices declared necessary, but such national security methods are open-ended and expansive. Enemies of the nation are global but often stateless and perceived to be actively planning attacks on the homeland motivated by their hatred of our values. The mission creep of the Global War on Terror is the preservation of the much maligned but still accepted Dick Cheney 1% doctrine of preparing for the unknown but known 1% possibility of a credible threat. The message is clear: This is a new reality, get used to it. Vigilance is paramount even if liberal notions of freedom of speech, religious tolerance, presumption of innocence, and constitutional restraints on an overreaching government are somewhat abridged.
Nondestructive 3D Nanoscale X-ray Imaging of Solid Oxide Fuel Cells in the Laboratory
- Stephen T. Kelly, Sandrine Ricote, Peter Weddle, Alexis Dubois, Benjamin Kee, William Harris, John Berger, Robert J. Kee
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- Journal:
- Microscopy and Microanalysis / Volume 25 / Issue S2 / August 2019
- Published online by Cambridge University Press:
- 05 August 2019, pp. 382-383
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- August 2019
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Reply to Robert Vincent
- Thomas Krasemann, Felix Berger, Petru Liuba, John Thomson
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- Cardiology in the Young / Volume 28 / Issue 6 / June 2018
- Published online by Cambridge University Press:
- 14 May 2018, p. 796
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Preface: ‘Field’
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- By John Berger
- Edited by Stephen Benson, University of East Anglia, Will Montgomery, Royal Holloway, University of London
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- Writing the Field Recording
- Published by:
- Edinburgh University Press
- Published online:
- 11 November 2020
- Print publication:
- 14 March 2018, pp 31-36
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Summary
‘Life is not a walk across an open field’
Russian proverbShelf of a field, green, within easy reach, the grass on it not yet high, papered with blue sky through which yellow has grown to make pure green, the surface colour of what the basin of the world contains, attendant field, shelf between sky and sea, fronted with a curtain of printed trees, friable at its edges, the corners of it rounded, answering the sun with heat, shelf on a wall through which from time to time a cuckoo is audible, shelf on which she keeps the invisible and intangible jars of her pleasure, field that I have always known, I am lying raised up on one elbow wondering whether in any direction I can see beyond where you stop. The wire around you is the horizon.
Remember what it was like to be sung to sleep. If you are fortunate, the memory will be more recent than childhood. The repeated lines of words and music are like paths. These paths are circular and the rings they make are linked together like those of a chain. You walk along these paths and are led by them in circles which lead from one to the other, further and further away. The field upon which you walk and upon which the chain is laid is the song.
Into the silence, which was also at times a roar, of my thoughts and questions forever returning to myself to search there for an explanation of my life and its purpose, into this concentrated tiny hub of dense silent noise came the cackle of a hen from a nearby back garden, and at that moment that cackle, its distinct sharp-edged existence beneath a blue sky with white clouds, induced in me an intense awareness of freedom. The noise of the hen, which I could not even see, was an event (like a dog running or an artichoke flowering) in a field which until then had been awaiting a first event in order to become itself realisable. I knew that in that field I could listen to all sounds, all music.
Recommendations for the configuration of a cardiac catheterisation laboratory for the treatment of children with CHD
- Thomas Krasemann, Felix Berger, Petru Liuba, John Thomson
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- Cardiology in the Young / Volume 28 / Issue 6 / June 2018
- Published online by Cambridge University Press:
- 09 March 2018, pp. 791-794
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A modern catheter laboratory for the treatment of children with CHD should be in close proximity to the paediatric ICU, operating theatres, and imaging facilities. Space requirements and equipment for an up-to-date catheter laboratory are discussed. The document was endorsed by the council of the Association of European Paediatric and Congenital Cardiologists.
Physiological consequences of mutation for ALS-inhibitor resistance
- Charlotte V. Eberlein, Mary J. Guttieri, Philip H. Berger, John K. Fellman, Carol A. Mallory-Smith, Donn C. Thill, Roger J. Baerg, William R. Belknap
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- Journal:
- Weed Science / Volume 47 / Issue 4 / August 1999
- Published online by Cambridge University Press:
- 12 June 2017, pp. 383-392
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Biochemical and physiological effects of target site resistance to herbicides inhibiting acetolactate synthase (ALS) were evaluated using sulfonylurea-resistant (R) and -susceptible (S) near isonuclear Lactuca sativa ‘Bibb’ lines derived by backcrossing the resistance allele from Lactuca serriola L. into L. sativa. Sequence data suggest that resistance in L. sativa is conferred by a single-point mutation that encodes a proline197 to histidine substitution in Domain A of the ALS protein; this is the same substitution observed in R L. serriola. Kmapp (pyruvate) values for ALS isolated from R and S L. sativa were 7.3 and 11.1 mM, respectively, suggesting that the resistance allele did not alter the pyruvate binding domain on the ALS enzyme. Both R and S ALS had greater affinity for 2-oxobutyrate than for pyruvate at the second substrate site. Ratios of acetohydroxybutyrate: acetolactate produced by R ALS across a range of 2-oxobutyrate concentrations were similar to acetohydroxybutyrate: acetolactate ratios produced by S ALS. Specific activity of ALS from R L. sativa was 46% of the specific activity from S L. sativa, suggesting that the resistance allele has detrimental effects on enzyme function, expression, or stability. ALS activity from R plants was less sensitive to feedback inhibition by valine, leucine, and isoleucine than ALS from S plants. Valine, leucine, and isoleucine concentrations were about 1.5 times higher in R seed than in S seed on a per gram of seed basis, and concentrations of valine and leucine were 1.3 and 1.6 times higher, respectively, in R leaves than in S leaves. Findings suggest that the mutation for resistance results in altered regulation of branched-chain amino acid synthesis.
Age of Sheep Creek Tephra (Pleistocene) in Central Alaska from Thermoluminescence Dating of Bracketing Loess
- Glenn W. Berger, Troy L. Péwé, John A. Westgate, Shari J. Preece
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- Quaternary Research / Volume 45 / Issue 3 / May 1996
- Published online by Cambridge University Press:
- 20 January 2017, pp. 263-270
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The age of the Sheep Creek tephra (SCt), a widespread marker ash bed in eastern Alaska and western Yukon Territory, has been ambiguous and controversial. We have obtained three reliable thermoluminescence age estimates from bracketing loess near Fairbanks that imply a deposition age of about 190,000 ± 20,000 yr for SCt. Three of six loess samples near and closely bracketing the SCt beds near Fairbanks yielded younger age estimates (∼117,000 and ∼135,000 yr), most likely (based on field aspects) because of reworking and contamination by translocated grains. The new, reliable age assignment of 190,000 yr confirms independent stratigraphic evidence of a pre-last interglaciation age, and stratigraphic evidence from one site (Upper Eva Creek) that SCt is older than the more-widespread 140,000-yr-old Old Crow tephra. The SCt age also has implications for regional correlations of glacial and nonglacial deposits. In particular, it supports the stratigraphic and geomorphic interpretation that the Delta Glaciation in the east-central Alaska Range and the Reid Glaciation in western Yukon Territory are older than the last interglaciation (isotope substage 5e).
Notes on contributors
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- By Margaret Bent, Anna Maria Busse Berger, Lawrence F. Bernstein, Bonnie J. Blackburn, M. Jennifer Bloxam, Philippe Canguilhem, Julie E. Cumming, Anthony M. Cummings, David Fallows, David Fiala, Alison K. Frazier, James Hankins, Leofranc Holford-Strevens, Deborah Howard, Andrew Kirkman, Michael Long, Laurenz Lütteken, Evan A. MacCarthy, Patrick Macey, Honey Meconi, John Milsom, Klaus Pietschmann, Alejandro Enrique Planchart, Yolanda Plumley, Keith Polk, Anne Walters Robertson, Jesse Rodin, David J. Rothenberg, Thomas Schmidt-Beste, Peter Schubert, Nicole Schwindt, Richard Sherr, Pamela F. Starr, Anne Stone, Reinhard Strohm, Richard Taruskin, Blake Wilson, Emily Zazulia
- Edited by Anna Maria Busse Berger, University of California, Davis, Jesse Rodin, Stanford University, California
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- The Cambridge History of Fifteenth-Century Music
- Published online:
- 05 July 2015
- Print publication:
- 16 July 2015, pp xix-xxvi
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Notes on contributors
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- By David Berger, Andrew Berish, Benjamin Bierman, Anthony Brown, Anna Harwell Celenza, Bill Dobbins, Will Friedwald, Benjamin Givan, Edward Green, John Howland, Stephen D. James, J. Walker James, Jeffrey Magee, Dan Morgenstern, Marcello Piras, Brian Priestley, Evan Spring, Walter van de Leur, Trevor Weston, Olly W. Wilson
- Edited by Edward Green
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- The Cambridge Companion to Duke Ellington
- Published online:
- 18 December 2014
- Print publication:
- 08 January 2015, pp vii-x
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Family Inclusive Child Protection Practice: The History of the Family Inclusion Network and Beyond
- Frank Ainsworth, John Berger
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- Children Australia / Volume 39 / Issue 2 / June 2014
- Published online by Cambridge University Press:
- 21 May 2014, pp. 60-64
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- June 2014
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This article records briefly the history of the Family Inclusion Network as an organisation that promotes family inclusive child protection practice. Since its inception in Queensland in 2006, Family Inclusion Network organisations have been formed elsewhere and now exist in Western Australia, South Australia, Victoria, Tasmania, Australian Capital Territory and New South Wales. In 2010, developments at a national level saw the formation of the Family Inclusion Network Australia. Most organisations are incorporated and some have achieved charitable status. Each organisation endorses a common set of aims and objectives. There are, however, differences in terms of whether state or territory organisations accept government funding or not, are staffed by professionals or rely entirely on volunteer personnel, and have a capacity or otherwise to provide direct casework services to parents. Some state organisations focus on information and advice services, and legislative and policy reform efforts. All have telephone advice lines and a webpage presence. This article also focuses on a code of ethics for child protection practice and on the contribution parents can make to child protection services, and their rights to do so.
Contributors
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- By Alyssa Abo, Faiza Al Talaq, Alexander C. Arroyo, Laura J. Berg, Tony Berger, Lei Chen, Roberto Copetti, Stephanie J. Doniger, Mahmoud Elbarbary, Alaa A. Eldemerdash, Jason W. Fischer, John Christian Fox, Katja Goldflam, Beatrice Hoffmann, Jamie A. Jenkins, David Kessler, Heidi Ladner, Samuel H. F. Lam, Jason A. Levy, Resa E. Lewiss, Andrew S. Liteplo, Jennifer R. Marin, Arun Nagdev, Vicki E. Noble, Daniela Ramirez-Schrempp, Joshua Rempell, Randall T. Rhyne, Antonio Riera, Dana R. Sajed, Fernando Silva, Adam B. Sivitz, Dave Spear, Rebecca L. Vieira
- Edited by Stephanie J. Doniger
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- Pediatric Emergency Critical Care and Ultrasound
- Published online:
- 05 February 2015
- Print publication:
- 24 April 2014, pp x-xii
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- By Lenard A. Adler, Pinky Agarwal, Rehan Ahmed, Jagga Rao Alluri, Fawaz Al-Mufti, Samuel Alperin, Michael Amoashiy, Michael Andary, David J. Anschel, Padmaja Aradhya, Vandana Aspen, Esther Baldinger, Jee Bang, George D. Baquis, John J. Barry, Jason J. S. Barton, Julius Bazan, Amanda R. Bedford, Marlene Behrmann, Lourdes Bello-Espinosa, Ajay Berdia, Alan R. Berger, Mark Beyer, Don C. Bienfang, Kevin M. Biglan, Thomas M. Boes, Paul W. Brazis, Jonathan L. Brisman, Jeffrey A. Brown, Scott E. Brown, Ryan R. Byrne, Rina Caprarella, Casey A. Chamberlain, Wan-Tsu W. Chang, Grace M. Charles, Jasvinder Chawla, David Clark, Todd J. Cohen, Joe Colombo, Howard Crystal, Vladimir Dadashev, Sarita B. Dave, Jean Robert Desrouleaux, Richard L. Doty, Robert Duarte, Jeffrey S. Durmer, Christyn M. Edmundson, Eric R. Eggenberger, Steven Ender, Noam Epstein, Alberto J. Espay, Alan B. Ettinger, Niloofar (Nelly) Faghani, Amtul Farheen, Edward Firouztale, Rod Foroozan, Anne L. Foundas, David Elliot Friedman, Deborah I. Friedman, Steven J. Frucht, Oded Gerber, Tal Gilboa, Martin Gizzi, Teneille G. Gofton, Louis J. Goodrich, Malcolm H. Gottesman, Varda Gross-Tsur, Deepak Grover, David A. Gudis, John J. Halperin, Maxim D. Hammer, Andrew R. Harrison, L. Anne Hayman, Galen V. Henderson, Steven Herskovitz, Caitlin Hoffman, Laryssa A. Huryn, Andres M. Kanner, Gary P. Kaplan, Bashar Katirji, Kenneth R. Kaufman, Annie Killoran, Nina Kirz, Gad E. Klein, Danielle G. Koby, Christopher P. Kogut, W. Curt LaFrance, Patrick J.M. Lavin, Susan W. Law, James L. Levenson, Richard B. Lipton, Glenn Lopate, Daniel J. Luciano, Reema Maindiratta, Robert M. Mallery, Georgios Manousakis, Alan Mazurek, Luis J. Mejico, Dragana Micic, Ali Mokhtarzadeh, Walter J. Molofsky, Heather E. Moss, Mark L. Moster, Manpreet Multani, Siddhartha Nadkarni, George C. Newman, Rolla Nuoman, Paul A. Nyquist, Gaia Donata Oggioni, Odi Oguh, Denis Ostrovskiy, Kristina Y. Pao, Juwen Park, Anastas F. Pass, Victoria S. Pelak, Jeffrey Peterson, John Pile-Spellman, Misha L. Pless, Gregory M. Pontone, Aparna M. Prabhu, Michael T. Pulley, Philip Ragone, Prajwal Rajappa, Venkat Ramani, Sindhu Ramchandren, Ritesh A. Ramdhani, Ramses Ribot, Heidi D. Riney, Diana Rojas-Soto, Michael Ronthal, Daniel M. Rosenbaum, David B. Rosenfield, Durga Roy, Michael J. Ruckenstein, Max C. Rudansky, Eva Sahay, Friedhelm Sandbrink, Jade S. Schiffman, Angela Scicutella, Maroun T. Semaan, Robert C. Sergott, Aashit K. Shah, David M. Shaw, Amit M. Shelat, Claire A. Sheldon, Anant M. Shenoy, Yelizaveta Sher, Jessica A. Shields, Tanya Simuni, Rajpaul Singh, Eric E. Smouha, David Solomon, Mehri Songhorian, Steven A. Sparr, Egilius L. H. Spierings, Eve G. Spratt, Beth Stein, S.H. Subramony, Rosa Ana Tang, Cara Tannenbaum, Hakan Tekeli, Amanda J. Thompson, Michael J. Thorpy, Matthew J. Thurtell, Pedro J. Torrico, Ira M. Turner, Scott Uretsky, Ruth H. Walker, Deborah M. Weisbrot, Michael A. Williams, Jacques Winter, Randall J. Wright, Jay Elliot Yasen, Shicong Ye, G. Bryan Young, Huiying Yu, Ryan J. Zehnder
- Edited by Alan B. Ettinger, Albert Einstein College of Medicine, New York, Deborah M. Weisbrot, State University of New York, Stony Brook
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- Neurologic Differential Diagnosis
- Published online:
- 05 June 2014
- Print publication:
- 17 April 2014, pp xi-xx
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Notes on Contributors
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- By Jennifer J. Baker, Noelle A. Baker, Jason Berger, Ronald A. Bosco, Kristin Boudreau, Sterling F. (“Rick”) Delano, Neal Dolan, David O. Dowling, Susan L. Dunston, Leslie Elizabeth Eckel, Randall Fuller, Len Gougeon, David Greenham, Jennifer Gurley, Robert D. Habich, Alan Hodder, Glen M. Johnson, Daniel R. Koch, Alfred G. Litton, John Lysaker, Daniel S. Malachuk, Saundra Morris, Wesley T. Mott, Jillmarie Murphy, Joel Myerson, Bonnie Carr O’neill, Todd H. Richardson, Jacob Risinger, David M. Robinson, Jan Stievermann, Roger Thompson, Albert J. Von Frank, Leslie Perrin Wilson
- Edited by Wesley T. Mott, Worcester Polytechnic Institute, Massachusetts
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- Ralph Waldo Emerson in Context
- Published online:
- 05 December 2013
- Print publication:
- 09 December 2013, pp xi-xviii
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- By Andrei V. Alexandrov, Kristian Barlinn, Nishidh Barot, Slava Berger, Pietro Cortelli, Antonio Culebras, Mark Eric Dyken, Alejandro M. Forteza, Apoor S. Gami, Kyoung Bin Im, Behrouz Jafari, Malcolm Kohler, Clete A. Kushida, Lena Lavie, Vahid Mohsenin, Federica Provini, George B. Richerson, Gustavo C. Román, Harold R. Smith, John R. Stradling
- Edited by Antonio Culebras
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- Sleep, Stroke and Cardiovascular Disease
- Published online:
- 05 January 2013
- Print publication:
- 06 December 2012, pp viii-x
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Epitaxial graphene on silicon carbide: Introduction to structured graphene
- Ming Ruan, Yike Hu, Zelei Guo, Rui Dong, James Palmer, John Hankinson, Claire Berger, Walt A. de Heer
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- MRS Bulletin / Volume 37 / Issue 12 / December 2012
- Published online by Cambridge University Press:
- 23 November 2012, pp. 1138-1147
- Print publication:
- December 2012
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We present an introduction to the rapidly growing field of epitaxial graphene on silicon carbide, tracing its development from the original proof-of-concept experiments a decade ago to its present, highly evolved state. The potential of epitaxial graphene as a new electronic material is now being recognized. Whether the ultimate promise of graphene-based electronics will ever be realized remains an open question. Silicon electronics is based on single-crystal substrates that allow reliable patterning on the nanoscale, which is an absolute requirement for any new electronic material. That is why epitaxial graphene is based on single-crystal silicon carbide. We also present recent results on nanopatterned graphene produced by etching the silicon carbide before annealing so that the graphene structures are produced in their final shapes. This avoids postannealing patterning, which is known to greatly affect transport properties on the nanoscale. Creating such structured graphene is an elegant method for avoiding pervasive patterning problems.
Contributors
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- By Lee R. Berger, Fred L. Bookstein, Günter Bräuer, Michel Brunet, Steven E. Churchill, Ronald J. Clarke, M. Christopher Dean, Michelle S. M. Drapeau, Sarah Elton, Dean Falk, Andrew Gallagher, John A. J. Gowlett, Colin Groves, Philipp Gunz, Adam Hartstone-Rose, Jason Hemingway, Ralph L. Holloway, Vance T. Hutchinson, William L. Jungers, Ivor Janković, Kevin L. Kuykendall, Sang-Hee Lee, Julia Lee-Thorp, Paul R. Manger, Emma Mbua, Henry M. McHenry, Philipp Mitteroecker, Simon Neubauer, Osbjorn M. Pearson, Travis R. Pickering, Martin Pickford, Sally C. Reynolds, Brian G. Richmond, Avraham Ronen, Darryl J. de Ruiter, Brigitte Senut, Fred H. Smith, Muhammad A. Spocter, Matt Sponheimer, J. Francis Thackeray, Phillip V. Tobias, Peter S. Ungar, Lyn Wadley, Gerhard W. Weber, Milford H. Wolpoff, B. Headman Zondo
- Edited by Sally C. Reynolds, University of the Witwatersrand, Johannesburg, Andrew Gallagher, University of Johannesburg
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- Book:
- African Genesis
- Published online:
- 05 April 2012
- Print publication:
- 29 March 2012, pp viii-xii
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- By Giustino Albanese, Andrew Amaranto, Brandon H. Backlund, Alexander Baxter, Abraham Berger, Mark Bernstein, Marian E. Betz, Omar Bholat, Suzanne Bigelow, Carl Bonnett, Elizabeth Borock, Christopher B. Colwell, Alasdair Conn, Moira Davenport, David Dreitlein, Aaron Eberhardt, Ugo A. Ezenkwele, Diana Felton, Spiros G. Frangos, John E. Frank, Jonathan S. Gates, Lewis Goldfrank, Pinchas Halpern, Jean Hammel, Kristin E. Harkin, Jason S. Haukoos, E. Parker Hays, Aaron Hexdall, James F. Holmes, Debra Houry, Jennifer Isenhour, Andy Jagoda, John L. Kendall, Erica Kreisman, Nancy Kwon, Eric Legome, Matthew R. Levine, Phillip D. Levy, Charles Little, Marion Machado, Heather Mahoney, Vincent J. Markovchick, Nancy Martin, John Marx, Julie Mayglothling, Ron Medzon, Maurizio A. Miglietta, Elizabeth L. Mitchell, Ernest Moore, Maria E. Moreira, Sassan Naderi, Salvatore Pardo, Sajan Patel, David Peak, Christine Preblick, Niels K. Rathlev, Charles Ray, Phillip L. Rice, Carlo L. Rosen, Peter Rosen, Livia Santiago-Rosado, Tamara A. Scerpella, David Schwartz, Fred Severyn, Kaushal Shah, Lee W. Shockley, Mari Siegel, Matthew Simons, Michael Stern, D. Matthew Sullivan, Carrie D. Tibbles, Knox H. Todd, Shawn Ulrich, Neil Waldman, Kurt Whitaker, Stephen J. Wolf, Daniel Zlogar
- Edited by Eric Legome, Lee W. Shockley
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- Book:
- Trauma
- Published online:
- 07 September 2011
- Print publication:
- 16 June 2011, pp ix-xiv
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- By Rose Teteki Abbey, K. C. Abraham, David Tuesday Adamo, LeRoy H. Aden, Efrain Agosto, Victor Aguilan, Gillian T. W. Ahlgren, Charanjit Kaur AjitSingh, Dorothy B E A Akoto, Giuseppe Alberigo, Daniel E. Albrecht, Ruth Albrecht, Daniel O. Aleshire, Urs Altermatt, Anand Amaladass, Michael Amaladoss, James N. Amanze, Lesley G. Anderson, Thomas C. Anderson, Victor Anderson, Hope S. Antone, María Pilar Aquino, Paula Arai, Victorio Araya Guillén, S. Wesley Ariarajah, Ellen T. Armour, Brett Gregory Armstrong, Atsuhiro Asano, Naim Stifan Ateek, Mahmoud Ayoub, John Alembillah Azumah, Mercedes L. García Bachmann, Irena Backus, J. Wayne Baker, Mieke Bal, Lewis V. Baldwin, William Barbieri, António Barbosa da Silva, David Basinger, Bolaji Olukemi Bateye, Oswald Bayer, Daniel H. Bays, Rosalie Beck, Nancy Elizabeth Bedford, Guy-Thomas Bedouelle, Chorbishop Seely Beggiani, Wolfgang Behringer, Christopher M. Bellitto, Byard Bennett, Harold V. Bennett, Teresa Berger, Miguel A. Bernad, Henley Bernard, Alan E. Bernstein, Jon L. Berquist, Johannes Beutler, Ana María Bidegain, Matthew P. Binkewicz, Jennifer Bird, Joseph Blenkinsopp, Dmytro Bondarenko, Paulo Bonfatti, Riet en Pim Bons-Storm, Jessica A. Boon, Marcus J. Borg, Mark Bosco, Peter C. Bouteneff, François Bovon, William D. Bowman, Paul S. Boyer, David Brakke, Richard E. Brantley, Marcus Braybrooke, Ian Breward, Ênio José da Costa Brito, Jewel Spears Brooker, Johannes Brosseder, Nicholas Canfield Read Brown, Robert F. Brown, Pamela K. Brubaker, Walter Brueggemann, Bishop Colin O. Buchanan, Stanley M. Burgess, Amy Nelson Burnett, J. Patout Burns, David B. Burrell, David Buttrick, James P. Byrd, Lavinia Byrne, Gerado Caetano, Marcos Caldas, Alkiviadis Calivas, William J. Callahan, Salvatore Calomino, Euan K. Cameron, William S. Campbell, Marcelo Ayres Camurça, Daniel F. Caner, Paul E. Capetz, Carlos F. Cardoza-Orlandi, Patrick W. Carey, Barbara Carvill, Hal Cauthron, Subhadra Mitra Channa, Mark D. Chapman, James H. Charlesworth, Kenneth R. Chase, Chen Zemin, Luciano Chianeque, Philip Chia Phin Yin, Francisca H. Chimhanda, Daniel Chiquete, John T. Chirban, Soobin Choi, Robert Choquette, Mita Choudhury, Gerald Christianson, John Chryssavgis, Sejong Chun, Esther Chung-Kim, Charles M. A. Clark, Elizabeth A. Clark, Sathianathan Clarke, Fred Cloud, John B. Cobb, W. Owen Cole, John A Coleman, John J. Collins, Sylvia Collins-Mayo, Paul K. Conkin, Beth A. Conklin, Sean Connolly, Demetrios J. Constantelos, Michael A. Conway, Paula M. Cooey, Austin Cooper, Michael L. Cooper-White, Pamela Cooper-White, L. William Countryman, Sérgio Coutinho, Pamela Couture, Shannon Craigo-Snell, James L. Crenshaw, David Crowner, Humberto Horacio Cucchetti, Lawrence S. Cunningham, Elizabeth Mason Currier, Emmanuel Cutrone, Mary L. Daniel, David D. Daniels, Robert Darden, Rolf Darge, Isaiah Dau, Jeffry C. Davis, Jane Dawson, Valentin Dedji, John W. de Gruchy, Paul DeHart, Wendy J. Deichmann Edwards, Miguel A. De La Torre, George E. Demacopoulos, Thomas de Mayo, Leah DeVun, Beatriz de Vasconcellos Dias, Dennis C. Dickerson, John M. Dillon, Luis Miguel Donatello, Igor Dorfmann-Lazarev, Susanna Drake, Jonathan A. Draper, N. Dreher Martin, Otto Dreydoppel, Angelyn Dries, A. J. Droge, Francis X. D'Sa, Marilyn Dunn, Nicole Wilkinson Duran, Rifaat Ebied, Mark J. Edwards, William H. Edwards, Leonard H. Ehrlich, Nancy L. Eiesland, Martin Elbel, J. Harold Ellens, Stephen Ellingson, Marvin M. Ellison, Robert Ellsberg, Jean Bethke Elshtain, Eldon Jay Epp, Peter C. Erb, Tassilo Erhardt, Maria Erling, Noel Leo Erskine, Gillian R. Evans, Virginia Fabella, Michael A. Fahey, Edward Farley, Margaret A. Farley, Wendy Farley, Robert Fastiggi, Seena Fazel, Duncan S. Ferguson, Helwar Figueroa, Paul Corby Finney, Kyriaki Karidoyanes FitzGerald, Thomas E. FitzGerald, John R. Fitzmier, Marie Therese Flanagan, Sabina Flanagan, Claude Flipo, Ronald B. Flowers, Carole Fontaine, David Ford, Mary Ford, Stephanie A. Ford, Jim Forest, William Franke, Robert M. Franklin, Ruth Franzén, Edward H. Friedman, Samuel Frouisou, Lorelei F. Fuchs, Jojo M. Fung, Inger Furseth, Richard R. Gaillardetz, Brandon Gallaher, China Galland, Mark Galli, Ismael García, Tharscisse Gatwa, Jean-Marie Gaudeul, Luis María Gavilanes del Castillo, Pavel L. Gavrilyuk, Volney P. Gay, Metropolitan Athanasios Geevargis, Kondothra M. George, Mary Gerhart, Simon Gikandi, Maurice Gilbert, Michael J. Gillgannon, Verónica Giménez Beliveau, Terryl Givens, Beth Glazier-McDonald, Philip Gleason, Menghun Goh, Brian Golding, Bishop Hilario M. Gomez, Michelle A. Gonzalez, Donald K. Gorrell, Roy Gottfried, Tamara Grdzelidze, Joel B. Green, Niels Henrik Gregersen, Cristina Grenholm, Herbert Griffiths, Eric W. Gritsch, Erich S. Gruen, Christoffer H. Grundmann, Paul H. Gundani, Jon P. Gunnemann, Petre Guran, Vidar L. Haanes, Jeremiah M. 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Yee, Viktor Yelensky, Yeo Khiok-Khng, Gustav K. K. Yeung, Angela Yiu, Amos Yong, Yong Ting Jin, You Bin, Youhanna Nessim Youssef, Eliana Yunes, Robert Michael Zaller, Valarie H. Ziegler, Barbara Brown Zikmund, Joyce Ann Zimmerman, Aurora Zlotnik, Zhuo Xinping
- Edited by Daniel Patte, Vanderbilt University, Tennessee
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- Book:
- The Cambridge Dictionary of Christianity
- Published online:
- 05 August 2012
- Print publication:
- 20 September 2010, pp xi-xliv
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DC Photoelectron Gun Parameters for Ultrafast Electron Microscopy
- Joel A. Berger, John T. Hogan, Michael J. Greco, W. Andreas Schroeder, Alan W. Nicholls, Nigel D. Browning
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- Journal:
- Microscopy and Microanalysis / Volume 15 / Issue 4 / August 2009
- Published online by Cambridge University Press:
- 03 July 2009, pp. 298-313
- Print publication:
- August 2009
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We present a characterization of the performance of an ultrashort laser pulse driven DC photoelectron gun based on the thermionic emission gun design of Togawa et al. [Togawa, K., Shintake, T., Inagaki, T., Onoe, K. & Tanaka, T. (2007). Phys Rev Spec Top-AC10, 020703]. The gun design intrinsically provides adequate optical access and accommodates the generation of ∼1 mm2 electron beams while contributing negligible divergent effects at the anode aperture. Both single-photon (with up to 20,000 electrons/pulse) and two-photon photoemission are observed from Ta and Cu(100) photocathodes driven by the harmonics (∼4 ps pulses at 261 nm and ∼200 fs pulses at 532 nm, respectively) of a high-power femtosecond Yb:KGW laser. The results, including the dependence of the photoemission efficiency on the polarization state of the drive laser radiation, are consistent with expectations. The implications of these observations and other physical limitations for the development of a dynamic transmission electron microscope with sub-1 nm·ps space-time resolution are discussed.