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The two-volume set IFIP AICT 639 and 640 constitutes the refereed post-conference proceedings of the 18th IFIP WG 5.1 International Conference on Product Lifecycle Management, PLM 2021, held in Curitiba, Brazil, during July 11-14, 2021. The conference was held virtually due to the COVID-19 crisis.The 107 revised full papers presented in these proceedings were carefully reviewed and selected from 133 submissions. The papers are organized in the following topical sections: Volume I: Sustainability, sustainable development and circular economy; sustainability and information technologies and services; green and blue technologies; AI and blockchain integration with enterprise applications; PLM maturity, PLM implementation and adoption within industry 4.0; and industry 4.0 and emerging technologies:Volume II: Design, education and management; lean, design and innovation technologies; information technology models and design; and models, manufacturing and information technologies and services.

The two-volume set IFIP AICT 639 and 640 constitutes the refereed post-conference proceedings of the 18th IFIP WG 5.1 International Conference on Product Lifecycle Management, PLM 2021, held in Curitiba, Brazil, during July 11-14, 2021. The conference was held virtually due to the COVID-19 crisis.The 107 revised full papers presented in these proceedings were carefully reviewed and selected from 133 submissions. The papers are organized in the following topical sections: Volume I: Sustainability, sustainable development and circular economy; sustainability and information technologies and services; green and blue technologies; AI and blockchain integration with enterprise applications; PLM maturity, PLM implementation and adoption within industry 4.0; and industry 4.0 and emerging technologies:Volume II: Design, education and management; lean, design and innovation technologies; information technology models and design; and models, manufacturing and information technologies and services.

This volume examines the relationship between trade liberalization policies and income inequality in developing countries. Using survey data for 54 developing countries, the book explores the potential trade-off between the gains from trade and the distribution of those gains and provides a quantification of the inequality-adjusted welfare gains from trade. The book begins with an introduction to the model and its methodology. Chapter 2 sets up the model and derives the formulas for the welfare e¿ects of trade policy. Chapter 3 uses the tari¿ data and the survey data to estimate those welfare e¿ects in 54 countries. Chapter 4 discusses the gains from trade and their distribution. Chapter 5 evaluates and quanti¿es the trade-ö between income gains and inequality costs of trade. Chapter 6 presents robustness tests and results from alternative models of the impacts of trade. The last chapter reviews the Household Impacts of Trade database and dashboard, which provides data for replication and a platform that allows researchers to simulate agricultural tari¿ policy shocks. Providing a comprehensive empirical analysis of the effects of trade policy on inequality in developing countries, this volume will be of interest to researchers and students of economic inequality, development, and international trade as well as policymakers interested in the inequality and poverty consequences of trade policy.

This book is about the promotion of all-attainment teaching in the mathematics classroom. The book contains the individual stories of six teachers working in three different schools: an inner London comprehensive with a largely working class intake, a comprehensive on the south coast and a rural comprehensive in Cambridgeshire. Each story describes and explains in brief the background of the teacher and how each came to teach all-attainment groups in mathematics. The research reported in this book is the only close examination and analysis of the practices and methodologies of successful all-attainment educators in the modern age. Three major themes are identified and examined: what sustains the teachers; how they introduce, develop and maintain all-attainment teaching; and how they make all-attainment work in the classroom.From an analysis of these findings, the book presents two interrelated models of the knowledge and understandings the research has generated. Thefirst one is an overarching model of situation and horizon. Used as a means of visualizing and understanding the current situation for teachers, it can aid in encouraging change for the better. The second model offers teachers a way to think of all-attainment teaching as an enabler for all students, most especially for disadvantaged students. Both models have original and explanatory power and offer new ways of conceptualizing how mathematics teaching for social justice might be understood and implemented, offering fresh perspectives and unique insights. As such it will be of help to students at undergraduate, Masters and doctoral level and to education researchers more widely.

Natural gums are polysaccharides consisting of multiple sugar units linked together via glycosidic linkages. Most natural gums reveal appropriate safety for oral consumption in the form of food additives or drug carriers. Challenges related to the utilization of natural polysaccharides, however, include uncontrolled rates of hydration, pH dependent solubility, viscosity reduction during storage, and weak interfacial properties. Modification provides an efficient route for not only removing such drawbacks but also improving physicochemical properties, such as solubility, viscosity and swelling index, and introducing new properties for varied applications.This book provides a comprehensive review of the various modifications on gums to make them suitable for food, cosmetic and pharmaceutical industries. The book is divided in four parts: an introduction to natural gums followed by in-depth coverage of chemical modification, physical modification, and enzymatic modification of gums. Eachchapter includes reaction mechanisms, physicochemical properties, rheological properties, interfacial properties, applications and future perspectives.Presenting a succinct account on gum modification from a practical point of view, this book is a helpful reference for academic and industrial scientists and engineers in food technology, materials chemistry, pharmaceuticals, chemical, industrial, and applied engineering, biochemistry, and biopolymers.

This book focuses on the soil and environmental resources and how to utilize them under Egyptian conditions to achieve tolerance to environmental abiotic stresses, i.e., drought, heat, salt, pollutants, and biotic stresses such as disease resistance. Further, it explores ways to increase productivity, improve the quality of field crops, and reduce the food gap. The application of modern technologies is an essential mechanism for improving crops' productivity through laser, seed technology, mycorrhiza, and biotechnology to enhance the yield of genotypes in sustainable farming systems. Therefore, this book discusses fundamental ways to increase productivity under various environmental circumstances. The book reflects the enormous potential held by horizontal expansion in the newly reclaimed lands in Egypt. Tapping that potential depends on developing crops that are highly tolerant to environmental stresses and mitigating the impacts of climate changes around the world tohelp Egypt and countries with similar weather and water deficits achieve the 2030 sustainability agenda for agriculture. Given its profundity and scope, the book offers a valuable asset for stakeholders, policy planners, decision-makers, researchers, and scientists in Egypt and worldwide.