20 research outputs found
Modal Logics of Topological Relations
- Author
- A. Artale and E. Franconi
- A. G. Cohn and S. Hazarika
- B. Bennett
- B. Bennett
- B. Clarke
- B. Nebel and H. BĂŒrckert
- C. Lutz
- C.H. Papadimitriou D. Suciu, and V. Via
- Carsten Lutz
- D. Harel
- F. Wolter
- Frank Wolter
- G. Gargov and V.Goranko
- I. DĂŒntsch H. Wang, and S. McCloskey
- I. Pratt and D. Schoop
- I. Pratt-Hartmann
- I. Shapirovsky and V. Shehtman
- J. Burgess
- J. F. Allen
- J. G. Stell
- J. Mc Kinsey and A. Tarski
- J. Renz
- J. Renz and B. Nebel
- J.Y. Halpern and Y. Shoham
- K. Etessami M. Y. Vardi, and T. Wilke
- M. de Rijke
- M. Egenhofer
- M. Egenhofer and R. Franzosa
- M. Marx and M. Reynolds
- M. Reynolds and M. Zakharyaschev
- R. Maddux
- V. Goranko and D. Vakarelov
- V. Goranko and S. Passy
- Y. Venema
- Yde Venema
- Publication venue
- 'Logical Methods in Computer Science e.V.'
- Publication date
- 01/01/2006
- Field of study
Logical formalisms for reasoning about relations between spatial regions play
a fundamental role in geographical information systems, spatial and constraint
databases, and spatial reasoning in AI. In analogy with Halpern and Shoham's
modal logic of time intervals based on the Allen relations, we introduce a
family of modal logics equipped with eight modal operators that are interpreted
by the Egenhofer-Franzosa (or RCC8) relations between regions in topological
spaces such as the real plane. We investigate the expressive power and
computational complexity of logics obtained in this way. It turns out that our
modal logics have the same expressive power as the two-variable fragment of
first-order logic, but are exponentially less succinct. The complexity ranges
from (undecidable and) recursively enumerable to highly undecidable, where the
recursively enumerable logics are obtained by considering substructures of
structures induced by topological spaces. As our undecidability results also
capture logics based on the real line, they improve upon undecidability results
for interval temporal logics by Halpern and Shoham. We also analyze modal
logics based on the five RCC5 relations, with similar results regarding the
expressive power, but weaker results regarding the complexity
Outcomes from elective colorectal cancer surgery during the SARS-CoV-2 pandemic
- Author
- 14 | COVIDSurg COllabOratIVe Tzovaras G. (General University Hospital of Larissa)
- Aawsaj Y.
- Abad Gurumeta A.
- Abad-Motos A.
- Abate E.
- Abbott D.
- Abdalla M.
- Abdeldayem H.
- Abdelkader Salama I.
- Abdelkarim M.
- Abdur-Rahman L.
- Abel M. K.
- Aboelkassem Ibrahim A.
- Abou Chaar M. K.
- Abreu da Silva A.
- Abubakar A.
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- Achalandabaso Boira M. Sales Mallafré R. (Hospital Universitari de Tarragona Joan XXIII)
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- Aguado H. (HellĂn Hospital)
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- COVIDSurg COllabOratIVe | 15 Violante T. (IRCCS Azienda Ospedaliero â Universitaria di Bologna
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- Torres Arcos C.
- Townson A.
- Trabulsi N. (King Abdulaziz University Hospital)
- Travaglio E. (Regina Montis Regalis Hospital
- Tribillon E. (Institut Mutualiste Montsouris)
- Troncoso Pereira P. (Hospital Mateu Orfila)
- Tropeano F. P. (Federico II University Hospital)
- Trujillo DĂaz J.
- Tsai L.
- Tsarkov P.
- Tsiamalou I.
- Tsiaoussis I.
- TU Dresden)
- Tucci R. (Azienda Ospedaliera Universitaria Careggi)
- Tufo A. (Ospedale del Mare)
- Tugmen C.
- Tulina I. (Clinic of Coloproctology and Minimally Invasive Surgery
- Tuncer K.
- Turnbull A. (Victoria Hospital Kirkcaldy)
- Turrado-Rodriguez V.
- Turri G. (Azienda Ospedaliera Universitaria Integrata di Verona)
- Tweedle E. (Addenbrookeâs Hospital)
- Ugarte-Sierra B. (Hospital Universitario de Galdakao)
- UludaÄ S. S.
- Umair M.
- Universiti Sains Malaysia)
- University of Amsterdam)
- UniversitĂ di Ferrara)
- Université Mohammed V Rabat). Netherlands: Hompes R.
- Uras C. (Acibadem Maslak Hospital)
- Urbani A. (Azienda Ospedaliero Universitaria Sanâanna)
- Urbieta A. (Hospital Universitario la Paz)
- Uslu G.
- Utkan N. Z.
- Uyanik M. S. (Samsun Training and Research Hospital)
- Uzunoglu F. G. (University Medical Center HamburgâEppendorf). Greece: Antonakis P.
- Vaccarella G. (Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello)
- Valbuena Jabares V. (Marqués de Valdecilla University Hospital)
- Valdes- Hernandez J. (Hospital Universitario Virgen Macarena)
- Valero Soriano M. (Hospital General Reina SofĂa)
- Valle Rubio A. (Getafe University Hospital)
- Valverde S. (Hospital Clinic Barcelona)
- Van den Eynde J.
- Van den Eynde R. (Uz Leuven). Bulgaria: Sokolov M. (University Hospital Alexandrovska). Canada: Boutros M.
- Varma M. (University of California
- VasljeviÄ J.
- Vassiliu P. (Attikon University General Hospital)
- Vaz Pereira R.
- Vaz S. (Centro Hospitalar e UniversitĂĄrio de SĂŁo JoĂŁo)
- Velchuru V.
- Velickovic D. (Clinic for Digestive Surgery
- Velidedeoglu M.
- Venn M. (Royal London Hospital)
- Venskutonis D. (Lithuanian University of Health Sciences Kaunas Clinical Hospital). Madagascar: Rasoaherinomenjanahary F.
- Vera Mansilla C. (Hospital Universitario Principe de Asturias)
- Verberne C. (John Radcliffe Hospital)
- Vergari R. (Ospedali Riuniti di Ancona)
- Vernon L. (Cork University Hospital)
- Vervoort D.
- Vescio G. (University âMagna Graeciaâ of Catanzaro)
- Vezakis A. (Aretaieion Hospital)
- Videira J. F. (IPO Porto). RĂ©union: Kassir R.
- Vieira B. (Centro Hospitalar de TrĂĄs-Os-Montes e Alto Douro
- Vieira Caroço T. (IPO Coimbra)
- Vieira Paiva Lopes A. C. (Hospital de Torres Vedras â Centro Hospitalar do Oeste)
- Vignali A. (San Raffaele Scientific Institute
- Vigorita V. (Ălvaro Cunqueiro Hospital)
- Vijayan D. (Queen Elizabeth Hospital Birmingham)
- Villalabeitia Ateca I. (Hospital Universitario Cruces)
- Vimalachandran D. (Countess of Chester Hospital)
- Viswanath Y. K. S. (James Cook University Hospital)
- Vitali A. (Ospedale San Giovanni di Dio)
- Vitone L. (Royal Blackburn Hospital)
- Vives R. V. (Bellvitge University Hospital)
- Vo U. G. (Fiona Stanley Hospital)
- Von Papen M.
- Vovola F. (Ospedali Riuniti Azienda Ospedaliera Universitaria Foggia)
- Vucic N.
- VĂĄzquez FernĂĄndez A. (Hospital ClĂnico Universitario de Valladolid)
- Wadham B. (The University Hospital of South Manchester)
- Walkes K. (Queen Elizabeth Hospital). Belgium: Flamey N.
- Wani R. (Sher-I-Kashmir Institute of Medical Sciences)
- Waqar S. H. (Pakistan Institute of Medical Sciences). Poland: Major P. (Jagiellonian University Medical College). Portugal: Azevedo C.
- Warren O. (Chelsea and Westminster Hospital)
- Watson L. J. (Sunderland Royal Hospital)
- Watson N. (Kingâs Mill Hospital)
- Weitz J.
- Welsch T. (Carl-Gustav-Carus University Hospital
- Werner J. (LMU Klinikum Campus Innenstadt)
- Westwood E. (James Paget University NHS Foundation Trust Hospital)
- Whelan M. (Tallaght University Hospital)
- Whitmore H. (Torbay and South Devon NHS Trust)
- Wilkin R. J. W. (South Warwickshire NHS Foundation Trust)
- Wilkins A. (Hull University Teaching Hospitals NHS Trust)
- Williams G. (Royal Gwent Hospital)
- Williams K. (St Georgeâs Hospital)
- Wilson M. (Forth Valley Royal Hospital)
- Wimmer A. (Paracelsus Medical University Salzburg). Barbados: Barker D.
- Wong M.
- Worku D. (Queens Medical Centre)
- Wullschleger M. (Gold Coast University Hospital)
- Xavier R. G.
- Xenaki S.
- Xynos E. (University Hospital of Heraklion Crete and Interclinic Hospital of Crete). Hong Kong: Futaba K.
- Yang W.
- Yassin N. (Royal Wolverhampton NHS Trust)
- Ye G.
- Yesantharao P.
- Yetkin S. G. (Sisli Hamidiye Etfal Training and Research Hospital)
- YeĆilyurt D. (University of Health Sciences Tepecik Training and Research Hospital)
- Yiallourou A. (Nicosia General Hospital). Czechia: Martinek L.
- Yıldırım A.
- Yildiz A. (Yildirim Beyazit University Yenimahalle Training and Research Hospital). Uganda: Lule H.
- Young R. (York Teaching Hospitals NHS Trust)
- Yousof E. A. (Assiut University Hospital)
- Youssef M. (Norfolk and Norwich University Hospital)
- Yurttas C. (University Hospital Tuebingen)
- YĂĄnez C. (Royo Villanova)
- YĂŒksel E. (Kocaeli University Teaching Hospital)
- Zafar S. N. (University of Wisconsin)
- Zakaria A. D.
- Zakaria Z. (School of Medical Sciences and Hospital
- Zambon M. (Policlinico Umberto I Sapienza University of Rome)
- Zanus G. (Caâ Foncello Treviso â DISCOG â UniversitĂ di Padova)
- Zegarac M. (Institute for Oncology and Radiology of Serbia)
- ZeliÄ M. (University Hospital Center Rijeka)
- Zengin A. K. (Istanbul Universty â CerrahpaĆa Medical Faculty)
- Zerbib P. (CHU Lille)
- Zervas K.
- Zese M. (Santa Maria degli Angeli Hospital ULSS 5 â Adria)
- Zhang H. (Concord Repatriation General Hospital)
- Zizzo M. (Azienda UnitĂ Sanitaria Locale â IRCCS di Reggio Emilia)
- Zografos C. (Laiko University Hospital)
- Zorrilla OrtĂșzar J. (Hospital General Universitario Gregorio Marañón)
- Zourntou S. (General Hospital of Larissa âKoutlimpaneio and Triantafylleioâ)
- Zubaidi A. M. (King Saud University). Serbia: AleksiÄ L.
- Ăngelo M.
- Ăelebi F.
- Ăolak E.
- Ăfner D. (Medical University of Innsbruck)
- Ăhlberger L.
- Ăzçelık M. F.
- ĂÄĂŒcĂŒ H.
- ĂberrĂŒck L.
- Äoza I.
- Publication venue
- 'Wiley'
- Publication date
- 01/01/2020
- Field of study
This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic
The protocol for the Families First Edmonton trial (FFE): a randomized community-based trial to compare four service integration approaches for families with low-income
- Author
- A Gazso
- A Government
- A Guttmann
- AE Kazdin
- AE Kazdin
- AJ Reynolds
- AL Oliver
- BO Muthén
- Brooks-Gunn Jeanne Greg J.Duncan, Pia Rebello Britto
- BW Timmons
- C Beauvais
- C Blair
- C Gorlick
- C Michalopoulos
- C Michalopoulos
- Canadian Agency for Drugs and Technologies in Health
- Canadian Institute of Child Health (CICH)
- Capital Health
- CJ Dunst
- D Bloom
- D Brooten
- D Ciliska
- D Offord
- D Offord
- D Olds
- D Olds
- David P. Ross Mark Kelly, Katherine Scott
- Deanna L Williamson
- DL Olds
- DM Janicke
- DM Vickery
- DO Ross
- DR Offord
- DW Spady
- E Marx
- EJ Silver
- EL Lipman
- EP Sweeney
- ER Shillington
- F Reiss
- Families First Edmonton
- G Browne
- G Browne
- G Browne
- G Browne
- G Browne
- G Browne
- GJ Duncan
- Government of Alberta
- GW Evans
- H Yoshikawa
- IB Pless
- J Drummond
- JA Britton
- Jane Drummond
- JD Willms
- Jeffrey Bisanz
- JP Comer
- K Cook
- K Lorig
- Konrad Fassbender
- KR Ginsburg
- KR Lorig
- L Steele
- L Vosko
- LA Gennetian
- Laurie Schnirer
- LD Howie
- M Dooley
- M Zaslow
- Maria Mayan
- MC Lennon
- Natasha Wiebe
- Organization for Economic Cooperation and Development (OECD)
- P Morris
- PA Morris
- PA Witt
- PL Chase-Lansdale
- R Bischoff
- R Ford
- R Jayakody
- R Sauvé
- RC Kessler
- RN Osborn
- RS Breitkreuz
- S Fothergill
- S Vogler
- S Wright
- SJ Brown
- SL McKay
- SS Luthar
- Sylvia So
- T Golaszewski
- The Vanier Institute of the Family
- TJ Martinek
- TJ Wade
- World Health Organization
- World Health Organization
- Publication venue
- 'Springer Science and Business Media LLC'
- Publication date
- Field of study
Spatial logics with connectedness predicates
- Author
- A. Grzegorczyk
- A. Grzegorczyk
- A. Tarski
- C. Areces P. Blackburn, and M. Marx
- D. Gabelaia R. Kontchakov, A. Kurucz, F
- E. Davis
- Frank Wolter
- G. Dimov and D. Vakarelov
- G. Dimov and D. Vakarelov
- I. DĂŒntsch and E. Orlowska
- I. DĂŒntsch and M. Winter
- I. Pratt-Hartmann
- Ian Pratt-Hartmann
- J. Renz and B. Nebel
- J.C.C. McKinsey and A. Tarski
- M. Aiello and J. van Benthem
- M. Ben-Or D. Kozen, and J. Reif
- M. Egenhofer and R. Franzosa
- M. Fischer and M. Rabin
- M. Reynolds
- M. Schaefer E. Sedgwick, and D. \v
- Michael Zakharyaschev
- P. Roeper
- Ph. Balbiani T. Tinchev, and D. Vakarel
- R. Ladner
- Roman Kontchakov
- S. Kripke
- S. Li and M. Ying
- V. Goranko and S. Passy
- V. Shehtman
- Yde Venema
- Publication venue
- 'Logical Methods in Computer Science e.V.'
- Publication date
- 01/01/2009
- Field of study
We consider quantifier-free spatial logics, designed for qualitative spatial representation and reasoning in AI, and extend them with the means to represent topological connectedness of regions and restrict the number of their connected components. We investigate the computational complexity of these logics and show that the connectedness constraints can increase complexity from NP to PSpace, ExpTime and, if component counting is allowed, to NExpTime
Law enforcement information sharing: A Florida case study
- Author
- A. Harbitter
- Bureau of Justice Assistance [BJA]
- C. Lin
- E. Scott
- E. Scott
- Ernest Scott
- G.L. Kelling
- G.T. Marx
- G.T. Marx
- G.T. Marx
- H. Chen
- J. B. Benedetti
- J. Schroeder
- K. Michael Reynolds
- L.M. Freidman
- M. Deflem
- Markel Foundation
- Markle Foundation
- National commission on terrorist attacks upon the United States
- P. Adriaans
- Pamala L. Griset
- Presidentâs commission on law enforcement and the administration of justice
- R.V. Hauck
- S. Walker
- S. Walker
- T.S. Kuhn
- V. Homburg
- W.J. Krouse
- Publication venue
- 'Springer Science and Business Media LLC'
- Publication date
- Field of study
Managing the Academics: Commodification and Control in the Development of University Education in the U.K.
- Author
- ASSOCIATION OF UNIVERSITY TEACHERS
- ASSOCIATION OF UNIVERSITY TEACHERS/NATIONAL ASSOCIATION OF TEACHERS IN FURTHER AND HIGHER EDUCATION
- BARNETT R.
- BRAVERMAN H.
- BROADBENT J.
- BURN B. B.
- CARSWELL J.
- CUTLER T.
- CVCP ACADEMIC AUDIT UNIT
- DEPARTMENT OF EDUCATION AND SCIENCE
- DEPARTMENT OF EDUCATION AND SCIENCE
- EZZAMEL M.
- GLENDON A. I.
- GRIFFITH J.
- HALSEY
- Hugh Willmott
- JOHNSON T.
- KOGAN M.
- LEGGE K.
- MARX K.
- NEAVE G.
- OFFE C.
- PETERS T.
- PHILLIPS V.
- PUXTY T.
- RASHDALL H.
- REYNOLDS P. A.
- ROBBINS L. C.
- SCOTT P.
- SIZER J.
- SIZER J.
- SIZER J.
- STUTTARD G.
- TOWNLEY B.
- TRIESMAN D.
- UNIVERSITY FUNDING COUNCIL
- WALFORD G.
- WILLIAMS G.
- WRIGHT MILLS C.
- Publication venue
- 'SAGE Publications'
- Publication date
- Field of study
Social Workers as âExpertsâ in the Family Court System: Is Evidence-Based Practice a Missing Link or Host-Created Knowledge?
- Author
- Arredondo P.
- Bard T. R.
- Barrett K. H.
- Barusch A. S.
- Barzun J.
- Berger L. L.
- Blanchette O.
- Bogenshneider K.
- Brandell J. R.
- Brooks S. L.
- Chambon A. S.
- Chambon A. S.
- Child Welfare League of America
- Chodorow N. J.
- Coleman L.
- Compton B. R.
- Council on Social Work Education.
- Council on Social Work Education.
- Dana E. Prescott
- Dominelli L.
- Elrod C. D.
- Emery R. E.
- Engel C.
- Epstein L.
- Fischer R. M. B.
- Foucault M.
- Foucault M.
- Foucault M.
- Frank J.
- Freud S.
- Galatzer-Levy R. M.
- Gambrill E.
- Garrison M.
- Gergen K. J.
- Gitterman A.
- Goldblatt D.
- Goldstein A. M.
- Goldstein J.
- Goldstone L.
- Goodwin P. Y.
- Graebner W.
- Grinnell R. M.
- Irving A.
- Keegan J.
- Kisthardt M. K.
- Kreider R. M.
- Krieder R. M.
- Kuhn T. S.
- Lewis K.
- Marx J. D.
- Maschi T.
- Mason M. A.
- Masson J. M.
- McNay M.
- National Association of Social Workers.
- OâČConnor A.
- Park R. C.
- Pecora P. J.
- Pozzuto R.
- Prescott D. E.
- Reamer F. G.
- Reynolds S.
- Rhodes M.
- Roberts A. R.
- Roche S. E.
- Rosenbaum T.
- Satin D. G.
- Schepard A. I.
- Simmons T.
- Swenson C. R.
- Turner F. J.
- U. S. Department of Health and Human Services Administration for Children and Families, Administration on Children, Youth and Families Children's Bureau.
- Ulen T. S.
- Wax A.
- Weinstein J.
- Williams C. R.
- Wilson R. F.
- Wrightsman L. S.
- Publication venue
- 'Informa UK Limited'
- Publication date
- Field of study
Telecommunications policy in the new South Africa: participatory politics and sectoral reform
- Author
- Adam H.
- African National Congress
- African National Congress
- Baskin J.
- Battersby J.
- Cawson A.
- Citizen
- Clark N.L.
- Coopers &
- COSATU
- Department of Posts and Telecommunications
- Departments of Labour and of Mines
- Fleming Martin
- Friedman S.
- Ghosh P.K.
- Giliomee H.
- Ginsburg D.
- Habermas J.
- Habermas J.
- Hartley R.
- Hartley W.
- Howe G.
- Jordan P.
- Kaplan D.
- Lodge T.
- Louw P.E.
- Makhanya M.
- Marx A.
- McDowell S.D.
- Minister for Posts Telecommunications and Broadcasting
- Ministry of Posts Telecommunications and Broadcasting
- Ministry of Posts Telecommunications and Broadcasting
- Ministry of Posts Telecommunications and Broadcasting
- Ministry of Posts Telecommunications and Broadcasting
- National Telecommunications Policy Project
- Nattrass J.
- Ngwema S.
- Noam E.M.
- O'Meara D.
- Patel E.
- Price R.M.
- Republic of South Africa
- Republic of South Africa
- Republic of South Africa
- Republic of South Africa
- Republic of South Africa
- Republic of South Africa
- Republic of South Africa
- Republic of South Africa
- Republic of South Africa
- Republic of South Africa
- Reynolds A.
- Robert B. Horwitz
- Saunders R.
- Seekings J.
- Sergeant M.
- Shubane K.
- Shubane K.
- Slovo J.
- Soggot M.
- South African Institute of Race Relations
- Technical Task Team Ministry of Posts, Telecommunications and Broadcasting
- Telkom
- Telkom
- Transtel
- US Department of Commerce National Telecommunications and Information Administration
- Waterbury J.
- Publication venue
- 'SAGE Publications'
- Publication date
- Field of study
Wikinomics and its discontents: a critical analysis of Web 2.0 business manifestos
- Author
- Bassett C.
- Batelle J.
- Brafman O.
- Bruns A.
- Bruns A.
- David Nieborg
- de Gouges O.
- de Peuter G.
- Duimel M.
- Horrigan J.B.
- Jenkins H.
- Jenkins H.
- José Van Dijck
- Leadbeater C.
- Leadbeater C.
- Lenhart A.
- Li C.
- Li C.
- Locke C.
- Lyon J.
- Marx K.
- McWilliam G.
- Nielsen J.
- O'Reilly T.
- Organisation for Economic Co-operation and Development (OECD)
- Pine B.J.
- Prahalad C.K.
- Reynolds G.
- Surowiecki J.
- Tapscott D.
- Toffler A.
- Unicom
- Vaidhyanathan S.
- Publication venue
- 'SAGE Publications'
- Publication date
- Field of study
Implementation Strategies to Promote and Sustain Health and Learning in School
- Author
- A Bandura
- A Hargreaves
- A Harris
- A Shiell
- A Tsouros
- A Wierenga
- AG Danielsen
- AS Bryk
- BB Jensen
- BJ Weiner
- Center for Mental Health and Schools
- CR Stefanou
- D Hopkins
- D Jourdan
- D Lister-Sharp
- D Reynolds
- E Marx
- GJ Buijs
- H Butler
- J Inchley
- J Reeve
- J Spillane
- K Leithwood
- K Resnicow
- L Bond
- L Rowling
- L Rowling
- L Rowling
- LB Easton
- LW Green
- M Deschesnes
- M Deschesnes
- M Fullan
- M Fullan
- M Fullan
- M Fullan
- M Gaspar de Matos
- M Suhrcke
- MC DavĂČ-Blanes
- MJ Elias
- N Boot
- N Firth
- N Keshavarz
- N McBride
- N McBride
- O Samdal
- O Samdal
- O Samdal
- O Samdal
- O Samdal
- O Samdal
- O Samdal
- P Flaspohler
- P Mortimore
- PA Sabatier
- R Holdsworth
- R Hubbard
- R Larson
- RL Daft
- S Denman
- S Heward
- S Stith
- T Larsen
- TB Hoyle
- TB Hoyle
- V Barnekow
- V Simovska
- V Simovska
- V Simovska
- W DĂŒr
- Publication venue
- 'Springer Science and Business Media LLC'
- Publication date
- Field of study