Publishers World Scientific Publishing Co Pte Ltd

Cover for Deog-Seong Oh · Smart City 2.0: Strategies and Innovations for City Development - World Scientific Series in R&d Management (Hardcover Book) (2023)

Smart City 2.0: Strategies and I... (2023)

Cover for Di, Yuan Ming (RMIT University, Australia) · Evidence-based Clinical Chinese Medicine - Volume 21: Type 2 Diabetes Mellitus - Evidence-based Clinical Chinese Medicine (Hardcover Book) (2023)

Evidence-based Clinical Chinese ... (2023)

Di, Yuan Ming (RMIT University, ...

Cover for Parker, Shefton (RMIT University, Australia) · Evidence-based Clinical Chinese Medicine - Volume 19: Irritable Bowel Syndrome - Evidence-based Clinical Chinese Medicine (Hardcover Book) (2023)

Evidence-based Clinical Chinese ... (2023)

Parker, Shefton (RMIT University...

Cover for Shen, Yuen-Ron (University of California, Berkeley, USA) · Second Harmonic and Sum-frequency Spectroscopy: Basics and Applications (Hardcover Book) [Large type / large print edition] (2023)

Large type / large print edition

Second Harmonic and Sum-frequenc... (2023)

Shen, Yuen-Ron (University of Ca...

Cover for Plotner, Olaf (ESMT Berlin, Germany) · Solid Growth: Strategies of Industrial Champions in Global Markets (Hardcover Book) (2023)

Solid Growth: Strategies of Indu... (2023)

Plotner, Olaf (ESMT Berlin, Germ...

Cover for Rajasekar, S (Bharathidasan University, India) · Understanding the Physics of Toys: Principles, Theory and Exercises (Hardcover Book) (2023)

Understanding the Physics of Toy... (2023)

Rajasekar, S (Bharathidasan Univ...

Cover for Yunez-Naude, Antonio (El Colegio de Mexico, Mexico) · Economic Development, Agriculture and Climate Change - World Scientific Lecture Notes in Economics and Policy (Hardcover Book) (2023)

Economic Development, Agricultur... (2023)

Yunez-Naude, Antonio (El Colegio...

Cover for Turbiner, Alexander V (National Autonomous University of Mexico, Mexico) · Quantum Anharmonic Oscillator (Hardcover Book) (2023)

Quantum Anharmonic Oscillator (2023)

Turbiner, Alexander V (National ...

Cover for Bryant, W D A (Macquarie University, Australia) · Lectures in the Microeconomics of Choice: Foundations, Consumers, and Producers - World Scientific Lecture Notes in Economics and Policy (Paperback Book) (2023)

Lectures in the Microeconomics o... (2023)

Bryant, W D A (Macquarie Univers...

Cover for Yunez-Naude, Antonio (El Colegio de Mexico, Mexico) · Economic Development, Agriculture and Climate Change - World Scientific Lecture Notes in Economics and Policy (Paperback Book) (2023)

Economic Development, Agricultur... (2023)

Yunez-Naude, Antonio (El Colegio...

Cover for Cao, Yang (Central China Normal University, China) · Modernization of China's Agricultural Production Organizations - Series on Chinese Economics Research (Hardcover Book) (2023)

Modernization of China's Agricul... (2023)

Cao, Yang (Central China Normal ...

Cover for Ambartsoumian, Gaik (The University of Texas at Arlington, USA) · Generalized Radon Transforms and Imaging by Scattered Particles: Broken Rays, Cones, and Stars in Tomography - Contemporary Mathematics and Its Applications: Monographs, Expositions and Lecture Notes (Hardcover Book) (2023)

Generalized Radon Transforms and... (2023)

Ambartsoumian, Gaik (The Univers...

Cover for Anthony Bing Leung Cheung · Crisis Leadership and Public Governance During the Covid-19 Pandemic: International Comparisons - Critical Perspectives and Issues in Governance and Public Management (Hardcover Book) (2023)

Crisis Leadership and Public Gov... (2023)

Anthony Bing Leung Cheung

Cover for Paola Scampoli · Cosmic Ray Muography (Hardcover Book) (2023)

Cosmic Ray Muography (2023)

Cover for Soh, Alexandra (National University of Singapore, Singapore) · Thermal Energy Storage: from Fundamentals to Applications (Hardcover Book) (2023)

Thermal Energy Storage: from Fun... (2023)

Soh, Alexandra (National Univers...

Cover for Chanwahn Kim · Great Transition in India: Issues and Debates (Hardcover Book) (2023)

Great Transition in India: Issue... (2023)

Cover for Susan Lightman · Uveitis Management: a Clinical Handbook (Hardcover Book) (2023)

Uveitis Management: a Clinical H... (2023)

Cover for Linda Low · Covid-19 New Normal (Hardcover Book) (2023)

Covid-19 New Normal (2023)

Cover for Zhao, Jianzhi (Fudan University, China) · International Development Cooperation: Theory, Practice, and Evaluation (Hardcover Book) (2023)

International Development Cooper... (2023)

Zhao, Jianzhi (Fudan University,...

Cover for Keith, Ronald Colin (.) · China Change and Confucian "Benevolence": Human Values, Truth and Policy - Series on Contemporary China (Hardcover Book) (2023)

China Change and Confucian "Bene... (2023)

Keith, Ronald Colin (.)

Cover for Li, Haitao (University of Missouri-St Louis, USA) · Optimization Modeling for Supply Chain Applications (Hardcover Book) (2023)

Optimization Modeling for Supply... (2023)

Li, Haitao (University of Missou...

Cover for Cherian, Joseph (Asia School of Business, Malaysia & Cornell University, USA) · Track to the Future: Investment, Finance and Lessons for the New Economy (Hardcover Book) (2023)

Track to the Future: Investment,... (2023)

Cherian, Joseph (Asia School of ...

Cover for Elena Popkova · Climate-smart Innovation: Social Entrepreneurship and Sustainable Development in the Environmental Economy - Advances in Entrepreneurial Economics and Sustainable Development (Hardcover Book) (2023)

Climate-smart Innovation: Social... (2023)

Cover for Vannucci, Paolo (Universite de Versailles et Saint-Quentin-en-Yvelines, France) · Tensor Algebra and Analysis for Engineers: with Applications to Differential Geometry of Curves and Surfaces - Contemporary Mathematics and Its Applications: Monographs, Expositions and Lecture Notes (Hardcover Book) (2023)

Tensor Algebra and Analysis for ... (2023)

Vannucci, Paolo (Universite de V...

Cover for Aziz Nather · Understanding Diabetic Foot: a Comprehensive Guide for General Practitioners (Hardcover Book) (2023)

Understanding Diabetic Foot: a C... (2023)

Cover for Zhang, Jin Zhong (University of California Santa Cruz, USA) · Metal Halide Perovskites: Synthesis, Properties and Applications (Hardcover Book) (2023)

Metal Halide Perovskites: Synthe... (2023)

Zhang, Jin Zhong (University of ...

Cover for Kambe, Tsutomu (Jixin) (.) · Science and Buddhism: Dialogues (Hardcover Book) (2023)

Science and Buddhism: Dialogues (2023)

Kambe, Tsutomu (Jixin) (.)

Cover for P. M. Pardalos · Analysis, Geometry, Nonlinear Optimization and Applications - Series on Computers and Operations Research (Hardcover Book) (2023)

Analysis, Geometry, Nonlinear Op... (2023)

Cover for Jorgensen, Palle E T (University of Iowa, USA) · Operator Theory and Analysis of Infinite Networks - Contemporary Mathematics and Its Applications: Monographs, Expositions and Lecture Notes (Hardcover Book) (2023)

Operator Theory and Analysis of ... (2023)

Jorgensen, Palle E T (University...

Cover for Han, Xiaoying (Auburn University, USA) · Dissipative Lattice Dynamical Systems - Interdisciplinary Mathematical Sciences (Hardcover Book) (2023)

Dissipative Lattice Dynamical Sy... (2023)

Han, Xiaoying (Auburn University...

Cover for Tan, Seng Ghee (Chinese Culture University, Taiwan) · Quantum Physics and Modern Applications: Problems and Solutions (Hardcover Book) (2023)

Quantum Physics and Modern Appli... (2023)

Tan, Seng Ghee (Chinese Culture ...

Cover for Tan, Seng Ghee (Chinese Culture University, Taiwan) · Quantum Physics and Modern Applications: Problems and Solutions (Paperback Book) (2023)

Quantum Physics and Modern Appli... (2023)

Tan, Seng Ghee (Chinese Culture ...

Cover for Chow, Thomas Swee Leong (.) · From Insurgent to Citizen: World War, Insurgency, and Confrontation in Malaya and Singapore (Hardcover Book) (2023)

From Insurgent to Citizen: World... (2023)

Chow, Thomas Swee Leong (.)

Cover for Chow, Thomas Swee Leong (.) · From Insurgent to Citizen: World War, Insurgency, and Confrontation in Malaya and Singapore (Paperback Book) (2023)

From Insurgent to Citizen: World... (2023)

Chow, Thomas Swee Leong (.)

Cover for Soh, Christabelle (.) · Gce a Level Economics: the Examination Skills Guide (Hardcover Book) [Second edition] (2023)

Gce a Level Economics: the Exami... (2023)

Soh, Christabelle (.)

Cover for Davis, Basil S (University of Notre Dame, USA) · Understanding the Electromagnetic Field (Hardcover Book) (2023)

Understanding the Electromagneti... (2023)

Davis, Basil S (University of No...

Cover for Soh, Christabelle (.) · Gce a Level Economics: the Examination Skills Guide (Paperback Book) [Second edition] (2023)

Gce a Level Economics: the Exami... (2023)

Soh, Christabelle (.)

Cover for Davis, Basil S (University of Notre Dame, USA) · Understanding the Electromagnetic Field (Paperback Book) (2023)

Understanding the Electromagneti... (2023)

Davis, Basil S (University of No...

Cover for Chu, Junhao (Chinese Academy of Sciences, China) · How Does Sunshine Become Electricity (Paperback Book) (2023)

How Does Sunshine Become Electri... (2023)

Chu, Junhao (Chinese Academy of ...

Cover for Bertrand Dutoit · Numerical Modeling of Superconducting Applications: Simulation of Electromagnetics, Thermal Stability, Thermo-hydraulics and Mechanical Effects in Large-scale Superconducting Devices - World Scientific Series in Applications of Superconductivity and Relat (Hardcover Book) (2023)

Numerical Modeling of Supercondu... (2023)

Bertrand Dutoit

Cover for Demina, Regina (University of Rochester, USA) · Electroweak Symmetry and Its Breaking (Hardcover Book) (2023)

Electroweak Symmetry and Its Bre... (2023)

Demina, Regina (University of Ro...

Cover for Srinath Perera · Managing Information Technology Projects: Building a Body of Knowledge in It Project Management - Domain-specific Bodies of Knowledge in Project Management (Hardcover Book) (2023)

Managing Information Technology ... (2023)

Cover for Marco Benini · Mathematics for Computation (M4c) (Hardcover Book) (2023)

Mathematics for Computation (M4c) (2023)

Cover for Ahmed M Khalid · Economic Integration Among D-8 Muslim Countries: Prospects and Challenges - World Scientific-economic Growth Centre Contemporary Series in Modern Economy (Hardcover Book) (2023)

Economic Integration Among D-8 M... (2023)

Cover for Zhang, Ao (Nantong University, China) · Modeling and Parameter Extraction Techniques of Silicon-based Radio Frequency Devices (Hardcover Book) (2023)

Modeling and Parameter Extractio... (2023)

Zhang, Ao (Nantong University, C...

Cover for H Kent Baker · Working Capital Management: Concepts and Strategies (Hardcover Book) (2023)

Working Capital Management: Conc... (2023)

Cover for May, Brian H (RMIT University, Australia) · Evidence-based Clinical Chinese Medicine - Volume 26: Rheumatoid Arthritis - Evidence-based Clinical Chinese Medicine (Hardcover Book) (2023)

Evidence-based Clinical Chinese ... (2023)

May, Brian H (RMIT University, A...

Cover for Mohammad, Louay A (COWI A/S, Denmark) · Practical Design Guide for Coastal Rubble Mound Structures, a (Hardcover Book) (2023)

Practical Design Guide for Coast... (2023)

Mohammad, Louay A (COWI A/S, Den...

Cover for David S-K Ting · Nourishing Tomorrow: Clean Engineering and Nature-friendly Living (Hardcover Book) (2023)

Nourishing Tomorrow: Clean Engin... (2023)

Cover for Higuera, Pablo (National University of Singapore, Singapore & The University of Auckland, New Zealand) · Numerical Modeling of Water Waves in Coastal and Ocean Engineering - Advances in Coastal and Ocean Engineering (Hardcover Book) (2023)

Numerical Modeling of Water Wave... (2023)

Higuera, Pablo (National Univers...

Cover for Alok N. Choudhary · Artificial Intelligence for Science: a Deep Learning Revolution (Hardcover Book) (2023)

Artificial Intelligence for Scie... (2023)

Alok N. Choudhary

Cover for Hu, Xiaolin (Georgia State University, USA) · Dynamic Data-driven Simulation: Real-time Data for Dynamic System Analysis and Prediction (Hardcover Book) (2023)

Dynamic Data-driven Simulation: ... (2023)

Hu, Xiaolin (Georgia State Unive...

Cover for Gautam Sethi · Non-coding Rna Transcripts in Cancer Therapy: Pre-clinical and Clinical Implications (Hardcover Book) (2023)

Non-coding Rna Transcripts in Ca... (2023)

Cover for Wo, Bradley (Asia Philanthropy Circle, Singapore) · Philanthropist's Guide to Giving, A: Asia-based Insights from Asia Philanthropy Circle (Hardcover Book) (2023)

Philanthropist's Guide to Giving... (2023)

Wo, Bradley (Asia Philanthropy C...

Cover for Taber, Larry A (Washington University, USA) · Nonlinear Theory of Elasticity: Applications in Biomechanics (Hardcover Book) [Revised edition] (2023)

Revised edition

Nonlinear Theory of Elasticity: ... (2023)

Taber, Larry A (Washington Unive...

Cover for Galbraith, Craig S (University of North Carolina Wilmington, USA) · Humane Entrepreneurship: Creating a New Economy, Venture by Venture - New Teaching Resources for Management in a Globalised World (Hardcover Book) (2023)

Humane Entrepreneurship: Creatin... (2023)

Galbraith, Craig S (University o...

Cover for Das, Ashok (University of Rochester, USA) · Finite Temperature Field Theory (Hardcover Book) [Second edition] (2023)

Finite Temperature Field Theory (2023)

Das, Ashok (University of Roches...

Cover for Das, Ashok (University of Rochester, USA) · Finite Temperature Field Theory (Paperback Book) [Second edition] (2023)

Finite Temperature Field Theory (2023)

Das, Ashok (University of Roches...

Cover for Lu, Shanzhen (Beijing Normal University, China) · Hardy Operators on Euclidean Spaces and Related Topics - Series on Analysis, Applications and Computation (Hardcover Book) (2023)

Hardy Operators on Euclidean Spa... (2023)

Lu, Shanzhen (Beijing Normal Uni...

Cover for Yang, S-R Eric (Korea University, South Korea) · Topologically Ordered Zigzag Nanoribbon: E/2 Fractionally Charged Anyons and Spin-charge Separation (Hardcover Book) (2023)

Topologically Ordered Zigzag Nan... (2023)

Yang, S-R Eric (Korea University...

Cover for Majeed Khader · Crisis Leadership: a Guide for Leaders (Hardcover Book) (2023)

Crisis Leadership: a Guide for L... (2023)

Cover for Bendell, Tony (Services Limited, UK & The Anti-Fragility Academy, UK) · Time to Rethink Risk Management: Surviving Future Global Crises (Hardcover Book) (2023)

Time to Rethink Risk Management:... (2023)

Bendell, Tony (Services Limited,...

Cover for Guo, Bin (Zhejiang University, China) · Decoding the Rise of Made-in-china: Why the Continuity of Catch-up Ladder Ultimately Matters - Series on Innovation and Operations Management for Chinese Enterprises (Hardcover Book) (2023)

Decoding the Rise of Made-in-chi... (2023)

Guo, Bin (Zhejiang University, C...

Cover for Paramita Das · Novel Polymeric Materials for Environmental Applications (Hardcover Book) (2023)

Novel Polymeric Materials for En... (2023)

Cover for Reena Marwah · Businesses: Resilience and Sustainability - Evidence from Emerging Market Developing Economies (Hardcover Book) (2023)

Businesses: Resilience and Susta... (2023)

Cover for Qi Xuan · Deep Learning Applications: in Computer Vision, Signals and Networks (Hardcover Book) (2023)

Deep Learning Applications: in C... (2023)

Cover for Xiang Long Cheng · Correctional Rehabilitation & Psychological Interventions in Singapore: Practitioners' Experiences in Singapore Prison Service (Hardcover Book) (2023)

Correctional Rehabilitation & Ps... (2023)

Xiang Long Cheng

Cover for Jones, Bill (.) · History of Chartered Surveyors in Singapore, The: the First Hundred Years: 1868 - 1968 (Hardcover Book) (2023)

History of Chartered Surveyors i... (2023)

Jones, Bill (.)

Cover for T. R. Govindarajan · Particles, Fields and Topology: Celebrating A. P. Balachandran (Hardcover Book) (2023)

Particles, Fields and Topology: ... (2023)

T. R. Govindarajan

Cover for Michie, Ranald (Durham University, UK) · War on Wealth, The: Fact and Fiction in British Finance Since 1800 - Frontiers of Accounting and Financial History (Hardcover Book) (2023)

War on Wealth, The: Fact and Fic... (2023)

Michie, Ranald (Durham Universit...

Cover for Ghatak, Kamakhya Prasad (University of Engineering and Management, India & Institute of Engineering and Management, India) · Electron Statistics in Quantum Confined Superlattices - Series on the Foundations of Natural Science and Technology (Hardcover Book) (2023)

Electron Statistics in Quantum C... (2023)

Ghatak, Kamakhya Prasad (Univers...

Cover for Butler, Richard J (Brigham Young University, USA & Southwestern University of Finance and Economics, China) · Advanced Statistics for Health Research (Hardcover Book) (2023)

Advanced Statistics for Health R... (2023)

Butler, Richard J (Brigham Young...

Cover for Yinghuai Zhu · Frontiers in Boron-based Medicinal Chemistry (Hardcover Book) (2023)

Frontiers in Boron-based Medicin... (2023)

Cover for Verhezen, Peter (University of Antwerp, Belgium) · Making Wise Decisions in a Smart World: Responsible Leadership in an Era of Artificial Intelligence (Hardcover Book) (2023)

Making Wise Decisions in a Smart... (2023)

Verhezen, Peter (University of A...

Cover for Kiat Seng Yeo · From 5g to 6g and Beyond: the 7 Cs of Future Communications (Hardcover Book) (2023)

From 5g to 6g and Beyond: the 7 ... (2023)

Cover for Jean-Michel Coron · Control of Partial Differential Equations - Series in Contemporary Applied Mathematics (Hardcover Book) (2023)

Control of Partial Differential ... (2023)

Jean-Michel Coron

Cover for Kundu, Subiman (Indian Institute of Technology Delhi, India) · Cofinally Complete Metric Spaces and Related Functions (Hardcover Book) (2023)

Cofinally Complete Metric Spaces... (2023)

Kundu, Subiman (Indian Institute...

Cover for Toseef Azid · Islamic Economic Institutions in Indonesia: Are They Successful in Achieving the Maqasad-al-shari'ah - Advances in Research on Islamic Economics and Finance (Hardcover Book) (2023)

Islamic Economic Institutions in... (2023)

Cover for Sprott, Julien Clinton (University of Wisconsin-Madison, USA) · Elegant Automation: Robotic Analysis of Chaotic Systems (Hardcover Book) (2023)

Elegant Automation: Robotic Anal... (2023)

Sprott, Julien Clinton (Universi...

Cover for Rajasekar, S (Bharathidasan University, India) · Understanding the Physics of Toys: Principles, Theory and Exercises (Paperback Book) (2023)

Understanding the Physics of Toy... (2023)

Rajasekar, S (Bharathidasan Univ...

Cover for Chapline, George (Lawrence Livermore National Laboratory, USA) · Quantum Mechanics and Bayesian Machines (Hardcover Book) (2023)

Quantum Mechanics and Bayesian M... (2023)

Chapline, George (Lawrence Liver...

Cover for Sherertz, Robert J (Wake Forest School of Medicine, USA) · Covid Chaos: What Happened and Why (Hardcover Book) (2023)

Covid Chaos: What Happened and Why (2023)

Sherertz, Robert J (Wake Forest ...

Cover for Sherertz, Robert J (Wake Forest School of Medicine, USA) · Covid Chaos: What Happened and Why (Paperback Book) (2023)

Covid Chaos: What Happened and Why (2023)

Sherertz, Robert J (Wake Forest ...

Cover for Sieren, Frank (.) · Future? China! How the New Superpower is Changing the West (Hardcover Book) (2023)

Future? China! How the New Super... (2023)

Sieren, Frank (.)

Cover for Sieren, Frank (.) · Future? China! How the New Superpower is Changing the West (Paperback Book) (2023)

Future? China! How the New Super... (2023)

Sieren, Frank (.)

Cover for Rahman, Faiz (Ohio University, USA) · From Edison to Leds: the Science and Story of Light Sources (Hardcover Book) (2023)

From Edison to Leds: the Science... (2023)

Rahman, Faiz (Ohio University, USA)

Cover for Rahman, Faiz (Ohio University, USA) · From Edison to Leds: the Science and Story of Light Sources (Paperback Book) (2023)

From Edison to Leds: the Science... (2023)

Rahman, Faiz (Ohio University, USA)

Cover for Ellinger, Peter (.) · Down Memory Lane: Peter Ellinger's Memoirs (Hardcover Book) (2023)

Down Memory Lane: Peter Ellinger... (2023)

Ellinger, Peter (.)

Cover for Ellinger, Peter (.) · Down Memory Lane: Peter Ellinger's Memoirs (Paperback Book) (2023)

Down Memory Lane: Peter Ellinger... (2023)

Ellinger, Peter (.)

Cover for Verhezen, Peter (University of Antwerp, Belgium) · Making Wise Decisions in a Smart World: Responsible Leadership in an Era of Artificial Intelligence (Paperback Book) [Student edition] (2023)

Student edition

Making Wise Decisions in a Smart... (2023)

Verhezen, Peter (University of A...

Cover for Wu, Hequan (China Information and Communication Technology Group, China) · Way of Data, The: from Technology to Applications (Hardcover Book) (2023)

Way of Data, The: from Technolog... (2023)

Wu, Hequan (China Information an...

Cover for Boh, Wai Fong (Nanyang Technological University, Singapore) · Identifying Business Opportunities Through Innovation (Hardcover Book) (2023)

Identifying Business Opportuniti... (2023)

Boh, Wai Fong (Nanyang Technolog...

Cover for Majhi, Sasadhar (Kazi Nazrul University, India) · Modern Sustainable Techniques in Total Synthesis of Bioactive Natural Products (Hardcover Book) (2023)

Modern Sustainable Techniques in... (2023)

Majhi, Sasadhar (Kazi Nazrul Uni...

Cover for Scheeline, Alexander (University of Illinois at Urbana-Champaign, USA) · Bandwidth: How Mathematics, Physics, and Chemistry Constrain Society (Hardcover Book) (2023)

Bandwidth: How Mathematics, Phys... (2023)

Scheeline, Alexander (University...

Cover for Scheeline, Alexander (University of Illinois at Urbana-Champaign, USA) · Bandwidth: How Mathematics, Physics, and Chemistry Constrain Society (Paperback Book) (2023)

Bandwidth: How Mathematics, Phys... (2023)

Scheeline, Alexander (University...

Cover for Cherednik, Ivan (The University of North Carolina at Chapel Hill, USA) · Combinatorics, Modeling, Elementary Number Theory: from Basic to Advanced (Hardcover Book) (2023)

Combinatorics, Modeling, Element... (2023)

Cherednik, Ivan (The University ...

Cover for Cheng, Lu (University of Illinois at Chicago, USA) · Socially Responsible Ai: Theories and Practices (Hardcover Book) (2023)

Socially Responsible Ai: Theorie... (2023)

Cheng, Lu (University of Illinoi...

Cover for Phoumin Han · Electricity Market Reforms in the Asean, China, India, and Japan - Series in Energy Transition, Carbon Neutrality, and Sustainability (Hardcover Book) (2023)

Electricity Market Reforms in th... (2023)

Cover for Robert M Sauer · The Economics of Religion (Hardcover Book) (2023)

The Economics of Religion (2023)

Cover for Gendreau, Julian (Johns Hopkins University, USA) · Future of Technology in Medicine, The: from Cyborgs to Curing Paralysis (Hardcover Book) (2023)

Future of Technology in Medicine... (2023)

Gendreau, Julian (Johns Hopkins ...