Session 6 - Regulation Management Organization IT Systems       Special report Session 6     0007  Restructuring and Regulation Impact on Electricity Distribution Activity in Jordan Reem Hamdan, Electricity Distribution CO. (Jordan)   0010  An Electricity Supplier's Obligations Connected with the Romanian Market Under the Electricity Market Liberalisation Stanescu Valentina, SC DFEE ELECTRICA OLTENIA SA - SUCURSALA PITESTI (Romania)   0016  Organisational Solution with it Systems Tools Assets Management Focusing Reduction of Costs and Workers Skills Development (Project Psoa...) Teresa Jorge, EDP-Distribuição (Portugal); Oliveira Farinha, EDP-Distribuição (Portugal); Ana Veiga, EDP-Distribuição (Portugal)   0018  Benchmarking Comparative Analysis Used for Estimation of Effects of Management in Processes of the Distribution of Electrical Energy in Energy Companies. Jerzy Szkutnik, Czestochowa University of Technology (Poland)   0019  The Benchmarking Evaluation of the Customer Satisfaction in the Energy Distribution Company Jerzy Szkutnik, Czestochowa University of Technology (Poland); Adam Witek Szkutnik, Czestochowa University of Technology (Poland)   0026  Rule-Making Project on Low and Medium Electricity Quality No Paper available Gilles Rat, STEEGB (France); Jean-Marc Kahan, STEEGB (France); Etienne Dragin, STEEGB (France)   0065  Implementing and Certifying A State of the Art Asset Management Approach - Practical Experiences J.G. (Han) Slootweg, Essent Netwerk B.V. (Netherlands); Gabriel J.M.B. Clemens, Essent Netwerk B.V. (Netherlands)   0072  Integrated Design and Contract Management Application System Massimo Bartolucci, Enel SpA (Italy); Maurizio Mazzotti, Enel SpA (Italy); Emilio Ricci, Enel SpA (Italy)   0076  Use of System Charges Methodology and Norm Model for Distribution System Including DER Jacques Deuse, Tractebel Engineering (Belgium); Sébastien Grenard, Tractebel Engineering (Belgium); Daniele Benintendi, FEEM (Italy); Per Agrell, FEEM (Italy); Peter Bogetoft, FEEM (Italy)   0128  Quantifying the Significance of Elements from Electric Grids Within the Romanian Power System - A Useful Tool in the Decision-Making Process Ciprian Diaconu, National Power Grid Company"Transelectrica"-S.A. (Romania); Christiana Barbulescu, National Power Grid Company"Transelectrica"-S.A. (Romania)   0146  Incorporating Quality of Service in Productivity Measurement: with Application to French Electricity Distribution Operators No Paper available Coelli Tim, University of Queensland (Australia); Perelman Sergio, University of Liège (Belgium); Plagnet Marie-Anne, EDF R&D (France); Romano Elliot, EDF R&D (France); Crespo Helene, EDF Réseau Distribution (France); Bres Gabriel, EDF Réseau Distribution (France)   0160  Replacement of the Ageing Asset Base - the Challenge to Regulators John Douglas, PB Power (United Kingdom)   0181  Intelligent System for Detection of Abnormalities and Probable Fraud By Metered Customers Abdul Rahim Ahmad, Universiti Tenaga Nasional (Malaysia); Abdul Malik Mohamad, Tenaga Nasional Research (Malaysia); Fariq Izwan Ismail, Universiti Tenaga Nasional (Malaysia); Fadhilah Abdul Razak, Universiti Tenaga Nasional (Malaysia)   0182  Team Spirit Development: An Intelligent Way for an Effective Human Resources Management Nicoleta Topoleanu, Electrica Transilvania Sud Subsidiary (Romania)   0186  Attenuation and Noise Level - Potential Problems with Communication Via the Power Grid Sarah Rönberg, Luleå University of Technology (Sweden); Martin Lundmark, Luleå University of Technology (Sweden); Mats Wahlberg, Skellefteå Kraft (Sweden); Markus Andersson, Luleå University of Technology (Sweden); Anders Larsson, Luleå University of Technology (Sweden); Math Bollen, STRI AB (Sweden)   0192  A Tool to Analyse the Regulatory Incentives on A Distribution Network Operator At A Project Level Rita Shaw, United Utilities Plc (United Kingdom); Mike Attree, United Utilities Plc (United Kingdom); Mike Haniak, United Utilities Plc (United Kingdom); Mike Kay, United Utilities Plc (United Kingdom); Tim Jackson, University of Surrey (United Kingdom)   0206  Benefits of Long-Run Incremental Cost Pricing for Distribution Network Charges Furong Li, University of Bath (United Kingdom); David Tolley, DLT (United Kingdom)   0208  Benchmarking As A Tool for Process Improvement Raúl Aguilar, PA Consulting (Argentina); Guillermo Mininno, PA Consulting (Argentina)   0213  Auctioning 'Loss Reductions' in the Electricity Markets Anthony Walsh, Student at QUT (Australia)   0266  The Brazilian Free Market of Electric Energy Problems Related to the Transition from the Captive Market Moacyr Trindade De Oliveira Andrade, CSPE - PUBLIC ENERGY COMMISSION OF SÃO PAULO STATE (Brazil); Edna Lopes Ramalho, CAMPINAS STATE UNIVERSITY - UNICAMP (Brazil); Fernando Amaral De Almeida Prado Jr, SÃO PAULO UNIVERSITY - USP (Brazil)   0269  Regulation and the Commercial Loss Processes in the Brazilian Electric Sector Moacyr Trindade De Oliveira Andrade, CSPE - PUBLIC ENERGY COMMISSION OF SÃO APULO STATE (Brazil); Edna Lopes Ramalho, UNICAMP - CAMPINAS STATE UNIVERSITY (Brazil); Aderbal Arruda Penteado Jr, CSPE - PUBLIC ENERGY COMMISSION OF SÃO APULO STATE (Brazil)   0291  Abnormalities and Fraud Electric Meter Detection Using Hybrid Support Vector Machine and Modified Genetic Algorithm Pok Hooi Loong, University Tenaga Nasional (Malaysia); Yap Keem Siah, University Tenaga Nasional (Malaysia); Ir. Zahrul Faizi Bin Hussein, University Tenaga Nasional (Malaysia); Amir Hisham Bin Hashim, University Tenaga Nasional (Malaysia); Izham Bin Zainal Abidin, University Tenaga Nasional (Malaysia); Tuan Haji Ir. Abdul Malik Bin Mohamad, Tenaga Nasional Berhad Research (Malaysia)   0296  Efficiency Analysis on Electricity Distribution Companies : A Pragmatic and Meaningful Approach to Determine the True Cost Drivers of Utilities Crespo Helene, EDF Réseau Distribution (France); Bres Gabriel, EDF Réseau Distribution (France); Chanel Philippe, Adequations (France)   0316  The Making Capital Investments Program Logistic Procedure in Electricity Distribution Companies Sergey Barykin, Petersburg Power Engineering Institute of Professional Development (Russia)   0318  Optimization of Planning Repair Services for Power Lines Sergey Chekmaryov, Petersburg Power Engineering Institute of Professional Development (Russia)   0319  Analysis and Evaluation of the Consequences of Poor Quality Power Supply of Consumers Evgeny Kuznetsov, Petersburg Power Engineering Institute of Professional Development (Russia)   0320  The Problem of Efficiency of Servicing Power Systems Victor Shalanda, Petersburg Power Engineering Institute of Professional Development (Russia)   0324  Fixing Prices for Energy Distribution Services Separately from Energy Supply Prices Pavel Shevkoplyasov, Petersburg Power Engineering Institute of Professional Development (Russia)   0336  Improved Incremental Cost Related Pricing Model for Use-Of-System Pricing Victor Levi, United Utilities (United Kingdom); Mike Attree, United Utilities (United Kingdom); Simon Brooke, United Utilities (United Kingdom); Mike Boxall, United Utilities (United Kingdom)   0343  Smart Metering Requires Smart Regulation Timo Riess, Energie Control GmbH (Austria); Günter Pauritsch, Energie Control GmbH (Austria); Helmut Sprongl, Energie Control GmbH (Austria)   0353  The Evolution of the Regulatory Framework of the Energy Market in Romania Laurentia Predescu, Romanian Energy Regulatory Authority (Romania); Adrian Predescu, Romanian Energy Regulatory Authority (Romania)   0356  Promoting Innovation in Liberalised Electricity Markets Cliff Walton, Cre8 Innovation Solutions Ltd (United Kingdom); Gareth Evans, OFGEM (United Kingdom)   0359  Approach to the Technical Losses Calculation Lujan Ruiz Díaz, Edenor S.A. (Argentina)   0364  Fraud Detection System Based on Fuzzy Techniques No Paper available Eduardo W. Dos Angelos, Federal University of Maranhão (Brazil); Osvaldo R. Saavedra, Federal University of Maranhão (Brazil); José E. O. Pessanha, Federal University of Maranhão (Brazil)   0380  Distribution Network Operator Regulation - A Task-Oriented Approach Kjell Sand, SINTEF Energy Research (Norway); Kjetil Storset, Skagerak Nett (Norway); Dag Eirik Nordgård, SINTEF Energy Research (Norway); Knut Samdal, SINTEF Energy Research (Norway)   0390  The Long-Term Mechanism of Power Demand Side Management (DSM) in China Jun Shi, South Shanghai Power Supply CO. of SMEPC (China); Yao Wang, South Shanghai Power Supply CO. of SMEPC (China)   0391  Benchmarking Danish Network Operators on Quality of Supply Morten Møller Jensen, DEFU (Denmark)   0396  Remote Meter Reading of Residential Customers, Quality Assurance of the Metering Data Henrik Weldingh, DEFU (Denmark)   0400  Unbundling of the Public Enterprise "Electric Power Industry of Serbia" with the Emphasis on the Role of the Electricity Trade Department Ivan Jankovic, Electric Power Industry of Serbia (Serbia Montenegro); Mladen Apostolovic, Electric Power Industry of Serbia (Serbia Montenegro)   0401  Incentives and Obstacles of Implementing Efficiency Benchmarking in Economic Regulation Samuli Honkapuro, Lappeenranta University of Technology (Finland); Satu Viljainen, Lappeenranta University of Technology (Finland); Jarmo Partanen, Lappeenranta University of Technology (Finland)   0418  Independence Plan of Distribution Companies "The New Apporach in Electrical Industry in Iran" Rasoul Khalili, science@industry university (Iran); Masoud Mehri, science@industry university (Iran)   0423  GIS Enhances Electric Utility Customer Care William Meehan, ESRI (United States)   0424  Behavioural Performance Modeling for Electricity Distribution Companies Mohamed Elsobki (Jr.), Cairo University (Egypt); Mohamed Abdel-Rahman, Cairo University (Egypt)   0434  ENARD:- International Action in Electricity Networks R&D John Baker, EA Technology (United Kingdom); Ronnie Belmans, Katholieke Universiteit Leuven (Belgium); Stig Goethe, Power Circle (Sweden)   0437  Regulation of Smart Meters and Amm Systems in Italy Ferruccio Villa, Autorità per l'energia elettrica e il gas (Italy)   0448  Large Roll-Out Project: Metering Data Operation Enrique Ramos Martínez, Telvent (Spain)   0476  Economic Charging Method for Electricity Distribution Networks Nigel Turvey, Western Power Distribution (United Kingdom); Nigel Lloyd, Western Power Distribution (United Kingdom); Simon Yeo, Western Power Distribution (United Kingdom)   0484  Research on the Regulation of China's Power Industry Marketization Pingkang Zhang, Shaanxi Electric Power Company (China); Pengxiang Bi, Northwest Electric Power Staff Training Cente (China); Qing Jin, Northwest Electric Power Staff Training Cente (China)   0487  An Approach to Short Term Load Forecasting Using Market Price Signal Madanmohan Tripathi, DOEACC Gorakhpur (India); Srinivas Singh, IIT Kanpur (India); Krishnagopal Upadhyay, M. M. M. Engineering College Gorakhpur (India)   0493  A Risk Based Approach to Distribution System Asset Management and A Survey of Perceived Risk Exposure Among Distribution Companies Dag Eirik Nordgård, SINTEF Energy Research (Norway); Oddbjørn Gjerde, SINTEF Energy Research (Norway); Kjell Sand, SINTEF Energy Research (Norway); Maria Daniela Catrinu, SINTEF Energy Research (Norway); Jukka Lassila, Lappenranta University (Finland); Jarmo Partanen, Lappenranta University (Finland); Sylvie Bonnoit, EdF R&D (France); Jean Aupied, EdF R&D (France)   0499  The Norwegian Power Industry's Reputation in A Deregulated Market Eva Fosby Livgard, TNS Gallup (Norway)   0549  Infrastructure, Security and Society - Energy Perspective Antti Silvast, University of Helsinki (Finland)   0560  Using Advanced Amr System in Low Voltage Distribution Network Management Pertti Järventausta, Tampere University of Technology (Finland); Antti Mäkinen, Tampere University of Technology (Finland); Kimmo Kivikko, Tampere University of Technology (Finland); Pekka Verho, Tampere University of Technology (Finland); Matti Kärenlampi, ABB Oy (Finland); Timo Chrons, Aidon Oy (Finland); Seppo Vehviläinen, MX Electrix Oy (Finland); Petri Trygg, PowerQ Oy (Finland); Aimo Rinta-Opas, Koillis-Satakunnan Sähkö Oy (Finland)   0580  Comparison of Life-Cycle Costs of Energy Metering Processes Petri Trygg, TUT/ instituion of Power Engineering (Finland); Harri Kulmala, VTT (Finland); Pertti Järventausta, TUT/ instituion of Power Engineering (Finland)   0589  Knowledge Transfer and A Decision-Making Simulator for the European Deregulated Electricity Market Gerd Solem, SINTEF Energy Research (Norway); Ivan Androcec, Hrvatska elektroprivreda d.d. (Croatia); Slavko Krajcar, University of Zagreb (Croatia); Klaus Livik, Powel ASA (Norway)   0596  Implementation of Ethernet in MV/LV Transformer Stations David Gerbec, Iskra Sistemi (Slovenia); Jurij Curk, Iskra Sistemi (Slovenia); Edvard Košnjek, Elektro Gorenjska (Slovenia); Janez Smukavec, Elektro Gorenjska (Slovenia)   0599  Societies' Reactions to Large Disturbances Kaisa Tahvanainen, Lappeenranta University of Technology (Finland); Satu Viljainen, Lappeenranta University of Technology (Finland); Jarmo Partanen, Lappeenranta University of Technology (Finland)   0601  Does Outsourcing Matter? Use of Technology and Procedures to Enhance Data Quality in NIS Hans Torvatn, SINTEF Technology and Society (Norway); Tove Håpnes, SINTEF Technology and Society (Norway); Kari Skarholt, SINTEF Technology and Society (Norway); Arnt Ove Eggen, SINTEf Energy research (Norway); Pål Næsje, SINTEF Technology and Society (Norway)   0608  Using Interoperability Standards Ease Design and Automated Deployment of Business Processes Like Customer-Switching Cyril Effantin, EDF R&D (France); Jean Luc Sanson, EDF R&D (France); Sylvie Mallet, EDF R&D (France)   0609  The Impacts of Recent Amendments of Electricity Market Legislation on Electricity Distribution Business - Case Finland Satu Viljainen, LAPPEENRANTA UNIVERSITY OF TECHNOLOGY (Finland); Kaisa Tahvanainen, LAPPEENRANTA UNIVERSITY OF TECHNOLOGY (Finland); Jarmo Partanen, LAPPEENRANTA UNIVERSITY OF TECHNOLOGY (Finland)   0617  Special Services That Are Not Remunerated in Rates Sebastian Soto, Edelap (Argentina)   0620  Market Based Demand Response. End User Involvement End Technology Experiences from Norwegian Pilots Ove S. Grande, SINTEF Energy Research (Norway); Ingeborg Graabak, SINTEF Energy Research (Norway); Inge Vognild, Statnett SF (Norway); Audun H. Wilberg, Norwegian Electricity Industry Association (EBL) (Norway)   0632  Regaining Customer Confidence Kalle Karlsson, Swedenergy (Sweden)   0634  Distribution Repayment Regulation Analysis in Several Power Markets Deregulated Rodrigo Ramirez, TECHNICAL UNIVERSITY OF CATALONIA (Spain); Joan Bergas, TECHNICAL UNIVERSITY OF CATALONIA (Spain); Hector Rivas, TECHNICAL UNIVERSITY OF CATALONIA (Spain); Andreas Sumper, TECHNICAL UNIVERSITY OF CATALONIA (Spain); Roberto Villafáfila, TECHNICAL UNIVERSITY OF CATALONIA (Spain)   0653  Smart Grid and Automatic Meter Management: Dream Or Reality? Claude Thürler, Groupe E (Switzerland)   0664  A Sensitivity Study of the Swedish Network Performance Assessment Model Investigating Effects of Changes in Input Data Carl Johan Wallnerström, KTH Electrical Engineering (Sweden); Lina Bertling, KTH Electrical Engineering (Sweden)   0677  A Comparative Study of Regulation Policies for Interruption of Supply of Electrical Distribution Systems in Sweden and Uk Johan Setréus, KTH Electrical Engineering (Sweden); Carl Johan Wallnerström, KTH Electrical Engineering (Sweden); Lina Bertling, KTH Electrical Engineering (Sweden)   0685  Powerline Carrier - the Basis for Advanced Metering Thomas Schaub, LANDIS+GYR (Switzerland)   0701  Electricity Sector Evolution and Power Quality Regulation - the Portuguese Experience Amanda Falcão, ERSE (Portugal); Hélder Milheiras, ERSE (Portugal); Jorge Esteves, ERSE (Portugal); Maria José Clara, ERSE (Portugal)   0711  Advanced Management Technologies for Distribution Planning and Operation - A Portuguese-Brazilian Cooperation Project Francisco Mira, EDP Distribuicao (Portugal); Luisa Jorge, EDP Distribuicao (Portugal); Carlos Santos, EDP Distribuicao (Portugal); Bruno Matos, EDP Distribuicao (Portugal); Tiago Rojao, EDP Distribuicao (Portugal); Neves Bento, Energias do Brasil (Brazil); Pedro Angelo, Energias do Brasil (Brazil); Francisco Paim, Energias do Brasil (Brazil); Luis Ferreira, Inst Superior Tecnico (Portugal); Pedro Carvalho, Inst Superior Tecnico (Portugal); Filipe Silva, Inst Optim Aplicada (Portugal)   0717  Comparison Between Long-Run Incremental Cost Pricing and Investment Cost-Related Pricing for Electricity Distribution Network Hui Yi Heng, University of Bath (United Kingdom); Ji Wang, University of Bath (United Kingdom); Furong Li, University of Bath (United Kingdom)   0730  Pm@Siemens: the Program, the Methodology and Culture Expansion of Project Management André Luiz Pereira De Oliveira, SIEMENS Ltda. (Brazil); Leandro Alves Patah, SIEMENS Ltda. (Brazil); Elizete Chang Tsun Chen, SIEMENS Ltda. (Brazil)   0740  Good Practice Asset Risk Management: A Regulator's Tale Donald Leigh Williams, Ofgem (United Kingdom); Imran Jami, Ofgem (United Kingdom); Steven Argent, Ofgem (United Kingdom)   0752  Evaluating Device Management Capabilities in Large Scale Amr Installations Using Evidential Reasoning Lars Nordström, KTH (Sweden); Jevgenij Tsoi, KTH (Sweden)   0753  Use of Evidential Reasoning in Assessment of Information Security Levels in Amr System Installations Lars Nordström, KTH (Sweden); Svante Rohlin, KTH (Sweden)   0781  Load Pattern Classification and Profiling for A Large Supply Company Dan Apetrei, Electrica SA (Romania); Ion Lungu, Electrica SA (Romania); Florentin Batrinu, Politecnico di Torino (Italy); Gianfranco Chicco, Politecnico di Torino (Italy); Radu Porumb, Universitatea Politehnica din Bucuresti (Romania); Petru Postolache, Universitatea Politehnica din Bucuresti (Romania)   0790  Lrmc Pricing Based on Mw+Mvar-Miles Methodology in Open Access Distribution Network Ji Wang, University of Bath (United Kingdom); Furong Li, University of Bath (United Kingdom)   0795  Performance Measurement of A Retail Electric Utility During A Transition Period: A Case in Thailand Thongchai Meenual, Provincial Electricity Authority (PEA) (Thailand)   0798  Organisational Learning Programme of A Large Retail Electric Utility in Thailand Thongchai Meenual, Provincial Electricity Authority (PEA) (Thailand); Erik J. De Bruijn, The University of Twente (Netherlands)   0803  Restructuring Organizational Structure in Distribution Companies in Serbia Under Electrical Industry of Serbia According to Market Rules No Paper available Dragoslav Cicovic, Elctric Power Industry of Serbia (Serbia Montenegro)   0808  New Training Programs in Power Engineering Using Vrml Visualization Methods Angel N. Angelov, Otto-von-Guericke-University (Germany); Tomasz Smieja, Otto-von-Guericke-University (Germany); Zbigniew Styczynski, Otto-von-Guericke-University (Germany)   0819  Competitive Intelligence for Power Market Monitoring Rubén Darío Cruz Rodríguez, Universidad Industrial de Santander (Colombia); Sandra Pinzón Rodríguez, Universidad Industrial de Santander (Colombia); Gilberto Carrillo Caicedo, Universidad Industrial de Santander (Colombia)   0835  New Technologies in Metering for Open Networks Brian Kingham, Schneider Electric (Canada)   0838  KVAH Based Tariff Hosein Arghavani, tehran electric power distribution co. (Iran); Alireza Haddadi, tehran electric power distribution co. (Iran); Mirfattah Fattah Gharahbagh, tehran regional electric co. (Iran)   0841  Electricity Power Unbalance Consumption Tariff No Paper available Hossein Arghavani, tehrah electric power distribution co. (Iran)   0842  Demand Management to Reduce Thermal Loads to Transformers and Voltage Level Problems Nelson Jesus, AES Sul (Brazil); Hermes Oliveira, AES Sul (Brazil); Nelcy Almeida, AES Sul (Brazil)   0845  Management of the ENEL Telegestore Project Under Quality Guarantee, from the Design to the Operation. No Paper available Francesco Marini, ENEL Distribuzione S.p.A. (Italy); Diego Tardivo, ENEL Distribuzione S.p.A. (Italy)   0864  Monitoring Electricity Markets Trough Regulation Using Idef0 Language. Jorge Alberto Felizzola Cruz, Universidad Industrial de Santander (UIS) (Colombia); Gilberto Carrillo Caicedo, Universidad Industrial de Santander (UIS) (Colombia); Rubén Darío Cruz Rodriguez, Universidad Industrial de Santander (UIS) (Colombia)   0871  The Use of AMR System for the Purpose of Measure and Separate the Parts of Distribution Networks Losses Saeed Mousavi, * Lorestan Province Electric Power Distribution Company (Iran); Mohammad Rahman Pouri, * Lorestan Province Electric Power Distribution Company (Iran); Bahman Tavan, * Lorestan Province Electric Power Distribution Company (Iran)   0891  New Zealand's Power Sector Regulatory Environment - An Update Jeffrey Wilson, Wilson Cook & Co Limited (New Zealand)   0902  Grid Operation in the Contrary Regulation Challenge of Cost Reduction and Supply Quality Catharina Friedrich, RWE Rhein-Ruhr Netzservice (Germany); Adolf Schweer, RWE Rhein-Ruhr Netzservice (Germany); Stefan Küppers, RWE Rhein-Ruhr Netzservice (Germany); Michael Guarisco, Institute for Operations Research (Switzerland)   0904  Cmms for Power Supply Srdjan Dragojlovic, Elektrosrbija (Serbia Montenegro); Momcilo Vujicic, Technical Faculty (Serbia Montenegro); Olivera Milenkovic, Elektrosrbija (Serbia Montenegro)   0905  Daily Offer Calculations Based on Structured Purchasing Ingrid Heinrich, Engineering Consultancy Load and Energy Management lemLeipzig (Germany); Bernhard Moldhäufel, Stadtwerke Bad Kreuznach GmbH (Germany); Andreas Schmidt, Engineering Consultancy Load and Energy Management lemLeipzig (Germany); Harald Heinrich, Engineering Consultancy Load and Energy Management lemLeipzig (Germany); Jörg Dietrich, Stadtwerke Bad Kreuznach GmbH (Germany); Frank Weber, Stadtwerke Bad Kreuznach GmbH (Germany)   0906  International Trends in Metered Data Exchange and Practical Experience Peter Bauhofer, A&B (Austria)   0911  Commercial Quality: Customer Focus and Improved Customer Communication Jenny Edfast, Vattenfall Power Consultant (Sweden)   0912  Knowledge Management: A New Demand for Public Utilities of Electric Distribution Session Graciela Misa, ADEERA (Argentina); Mario Cebreiro, DISTROCUYO (Argentina)