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Table of Contents (PDF) May 17, 2011 u vol. 108 u no. 20 u 8067–8526 Cover image: Pictured is a modern version of the Borromean rings, a topological arrange- ment of three interlocked symmetric rings that owes its name to the Borromeo family of Italy on whose coat of arms the rings appear. Although the three rings cannot be pulled apart, no two of them are linked—a fact that becomes apparent when one of the rings is hidden from view. Jim Conant, Rob Schneiderman, and Peter Teichner derived this particular realization of the link from their theory of Whitney towers, where it represents the Jacobi identity, or IHX-relation. See the article by Conant et al. on pages 8131–8138, which is part of the Special Feature on Low Dimensional Geometry and Topology. Image courtesy of Jim Conant, Rob Schneiderman, and Peter Teichner. From the Cover 8131 Borromean rings 8426 Ebola virus pathogenesis 8503 Cell surface signaling in plants 8520 Partitioning memory in the brain Contents COMMENTARIES 8069 Pheromone emergencies and drifting moth genomes Alejandro P. Rooney THIS WEEK IN PNAS See companion article on page 7102 in issue 17 of volume 108 8071 In vitro evolution goes deep 8067 In This Issue Alan M. Moses and Alan R. Davidson See companion article on page 7896 in issue 19 of volume 108 8073 Direct involvement of leucine-rich repeats in assembling LETTERS (ONLINE ONLY) ligand-triggered receptor–coreceptor complexes Jianming Li See companion article on page 8503 E108 Information content and word frequency in natural language: Word length matters Jamie Reilly and Jacob Kean fi E109 Reply to Reilly and Kean: Clari cations on word length PERSPECTIVE and information content Steven T. Piantadosi, Harry Tily, and Edward Gibson 8075 Phantom percepts: Tinnitus and pain as persisting E110 Susceptibility of coral-disease models aversive memory networks Adan G. Jordán-Garza, Erinn M. Muller, Scott G. Burman, Dirk De Ridder, Ana Belen Elgoyhen, Ranulfo Romo, and Robert van Woesik and Berthold Langguth E112 Reply to Jordán-Garza et al.: Demographic dynamism as an additional mechanism of coral disease resistance Laith Yakob and Peter J. Mumby LOW DIMENSIONAL GEOMETRY AND TOPOLOGY E113 Further evidence for old radiations originating at the northern edge of the Australian plate SPECIAL FEATURE Paul M. Oliver INTRODUCTION 8081 Low-dimensional topology and geometry Free online through the PNAS open access option. Robion C. Kirby PNAS u May 17, 2011 u vol. 108 u no. 20 u iii–viii Downloaded by guest on October 1, 2021 RESEARCH ARTICLES ENGINEERING 8085 Tour of bordered Floer theory 8162 Whole-Teflon microfluidic chips Robert Lipshitz, Peter S. Ozsváth, and Dylan P. Thurston Kangning Ren, Wen Dai, Jianhua Zhou, Jing Su, and Hongkai Wu 8093 Recent progress on symplectic embedding problems in four dimensions Michael Hutchings ENVIRONMENTAL SCIENCES 8167 Assessing climate change impacts on the near-term 8100 Equivalence of Heegaard Floer homology and embedded stability of the wind energy resource over the contact homology via open book decompositions United States Vincent Colin, Paolo Ghiggini, and Ko Honda S. C. Pryor and R. J. Barthelmie 8106 Fukaya categories of the torus and Dehn surgery 8172 Methane contamination of drinking water Yankı Lekili and Timothy Perutz accompanying gas-well drilling and hydraulic fracturing 8114 Symplectic homology product via Legendrian surgery Stephen G. Osborn, Avner Vengosh, Nathaniel R. Warner, Frédéric Bourgeois, Tobias Ekholm, and Yakov Eliashberg and Robert B. Jackson 8122 Fiber-connected, indefinite Morse 2-functions on GEOLOGY connected n-manifolds David T. Gay and Robion C. Kirby 8177 Slab melting versus slab dehydration in subduction-zone magmatism 8126 Topology of surface diagrams of smooth 4-manifolds Kenji Mibe, Tatsuhiko Kawamoto, Kyoko N. Matsukage, Jonathan D. Williams Yingwei Fei, and Shigeaki Ono 8131 Higher-order intersections in low-dimensional topology 8335 Persistent predator–prey dynamics revealed by Jim Conant, Rob Schneiderman, and Peter Teichner mass extinction Lauren Cole Sallan, Thomas W. Kammer, William I. Ausich, 8139 Higher categories, colimits, and the blob complex and Lewis A. Cook Scott Morrison and Kevin Walker 8339 Resetting the evolution of marine reptiles at the Triassic-Jurassic boundary Philippa M. Thorne, Marcello Ruta, and Michael J. Benton PHYSICAL SCIENCES MATHEMATICS CHEMISTRY 8085 Tour of bordered Floer theory 8146 Chemical reporters for fluorescent detection and Robert Lipshitz, Peter S. Ozsváth, and Dylan P. Thurston fi fi identi cation of O-GlcNAc-modi ed proteins reveal 8093 Recent progress on symplectic embedding problems glycosylation of the ubiquitin ligase NEDD4-1 in four dimensions Balyn W. Zaro, Yu-Ying Yang, Howard C. Hang, Michael Hutchings and Matthew R. Pratt 8100 Equivalence of Heegaard Floer homology and embedded 8152 Electron delocalization in the S1 and T1 metal-to-ligand contact homology via open book decompositions charge transfer states of trans-substituted metal Vincent Colin, Paolo Ghiggini, and Ko Honda quadruply bonded complexes Brian G. Alberding, Malcolm H. Chisholm, Judith C. Gallucci, 8106 Fukaya categories of the torus and Dehn surgery Yagnaseni Ghosh, and Terry L. Gustafson Yankı Lekili and Timothy Perutz 8157 Gold nanorods 3D-supercrystals as surface enhanced 8114 Symplectic homology product via Legendrian surgery Raman scattering spectroscopy substrates for the Frédéric Bourgeois, Tobias Ekholm, and Yakov Eliashberg rapid detection of scrambled prions Ramón A. Alvarez-Puebla, Ashish Agarwal, Pramit Manna, 8122 Fiber-connected, indefinite Morse 2-functions on Bishnu P. Khanal, Paula Aldeanueva-Potel, Enrique connected n-manifolds Carbó-Argibay, Nicolas Pazos-Pérez, Leonid Vigderman, David T. Gay and Robion C. Kirby Eugene R. Zubarev, Nicholas A. Kotov, and Luis M. Liz-Marzán 8126 Topology of surface diagrams of smooth 4-manifolds Jonathan D. Williams 8251 Acetylation of lysine 120 of p53 endows DNA-binding specificity at effective physiological salt concentration 8131 Higher-order intersections in low-dimensional topology Eyal Arbely, Eviatar Natan, Tobias Brandt, Mark D. Allen, Jim Conant, Rob Schneiderman, and Peter Teichner Dmitry B. Veprintsev, Carol V. Robinson, Jason W. Chin, 8139 Higher categories, colimits, and the blob complex Andreas C. Joerger, and Alan R. Fersht Scott Morrison and Kevin Walker COMPUTER SCIENCES PHYSICS 8329 Whole-genome phylogeny of Escherichia coli/Shigella 8257 Quantifying the Waddington landscape and biological group by feature frequency profiles (FFPs) paths for development and differentiation Gregory E. Sims and Sung-Hou Kim Jin Wang, Kun Zhang, Li Xu, and Erkang Wang iv u www.pnas.org Downloaded by guest on October 1, 2021 8206 Heat shock protein 90 from Escherichia coli collaborates SOCIAL SCIENCES with the DnaK chaperone system in client protein remodeling ANTHROPOLOGY Olivier Genest, Joel R. Hoskins, Jodi L. Camberg, Shannon M. Doyle, and Sue Wickner 8183 Architecture, sedentism, and social complexity at Pre-Pottery Neolithic A WF16, Southern Jordan 8212 Transcription cofactors TRIM24, TRIM28, and TRIM33 Bill Finlayson, Steven J. Mithen, Mohammad Najjar, Sam associate to form regulatory complexes that suppress ć Smith, Darko Maricevi , Nick Pankhurst, and Lisa Yeomans murine hepatocellular carcinoma Benjamin Herquel, Khalid Ouararhni, Konstantin 8514 Synchronized arousal between performers and related Khetchoumian, Mihaela Ignat, Marius Teletin, Manuel Mark, spectators in a fire-walking ritual Guillaume Béchade, Alain Van Dorsselaer, Sarah Ivana Konvalinka, Dimitris Xygalatas, Joseph Bulbulia, Sanglier-Cianférani, Ali Hamiche, Florence Cammas, Uffe Schjødt, Else-Marie Jegindø, Sebastian Wallot, Irwin Davidson, and Régine Losson Guy Van Orden, and Andreas Roepstorff 8218 Broad disorder and the allosteric mechanism of myosin II regulation by phosphorylation PSYCHOLOGICAL AND COGNITIVE SCIENCES Bertrand Vileno, Jean Chamoun, Hua Liang, Paul Brewer, 8444 Stimulus-dependent EEG activity reflects internal Brian D. Haldeman, Kevin C. Facemyer, Bridget Salzameda, updating of tactile working memory in humans Likai Song, Hui-Chun Li, Christine R. Cremo, Bernhard Spitzer and Felix Blankenburg and Piotr G. Fajer 8224 Thyroxine is a potential endogenous antagonist of SOCIAL SCIENCES macrophage migration inhibitory factor (MIF) activity Yousef Al-Abed, Christine N. Metz, Kai Fan Cheng, Bayan ’ 8189 Role of mother s genes and environment in Aljabari, Sonya VanPatten, Steven Blau, Hans Lee, Mahendar postpartum depression Ochani, Valentin A. Pavlov, Thomas Coleman, Nathalie Colter Mitchell, Daniel Notterman, Jeanne Brooks-Gunn, Meurice, Kevin J. Tracey, and Edmund J. Miller John Hobcraft, Irwin Garfinkel, Kate Jaeger, Iulia Kotenko, and Sara McLanahan 8228 Two distinct conformations of helix 6 observed in antagonist-bound structures of a β1-adrenergic receptor Rouslan Moukhametzianov, Tony Warne, Patricia C. SUSTAINABILITY SCIENCE Edwards, Maria J. Serrano-Vega, Andrew G. W. Leslie, Christopher G. Tate, and Gebhard F. X. Schertler 8167 Assessing climate change impacts on the near-term stability of the wind energy resource over the 8233 Interaction between the RNA binding domains of United States Ser-Arg splicing factor 1 and U1-70K snRNP protein S. C. Pryor and R. J. Barthelmie determines early spliceosome assembly Suhyung Cho, Amy Hoang, Rahul Sinha, Xiang-Yang Zhong, 8311 Combining high biodiversity with high yields in Xiang-Dong Fu, Adrian R. Krainer, and Gourisankar Ghosh tropical agroforests Yann Clough, Jan Barkmann, Jana Juhrbandt, Michael 8239 Structural
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