Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

This book constitutes the thoroughly refereed proceedings of the Researcher Links Workshop: Higher Education for All, held in Maceio, Brazil, in March 2017. The 12 full papers presented were carefully reviewed and selected from 31 submissions. The papers deal with a large spectrum of topics, including higher education, technology-enhanced solutions, user modelling, user grouping, gamification, educational games, MOOCs, e-learning, open educational resources, collaborative learning, student modelling, serious games, language analysis.

This two-volume set LNAI 12163 and 12164 constitutes the refereed proceedings of the 21th International Conference on Artificial Intelligence in Education, AIED 2020, held in Ifrane, Morocco, in July 2020.*The 49 full papers presented together with 66 short, 4 industry & innovation, 4 doctoral consortium, and 4 workshop papers were carefully reviewed and selected from 214 submissions. The conference provides opportunities for the cross-fertilization of approaches, techniques and ideas from the many fields that comprise AIED, including computer science, cognitive and learning sciences, education, game design, psychology, sociology, linguistics as well as many domain-specific areas. *The conference was held virtually due to the COVID-19 pandemic.

Das Buch geht der Frage nach, was unter Innovationen in der Stadt- und Regionalplanung zu verstehen ist, wie sie von offentlicher Planung trotz vieler Restriktionen erzeugt werden konnen, an welche Grenzen Planung dabei stosst und in welche Folgeprobleme sie sich unweigerlich verstrickt."

The classic book on how to remove spots and stains in the household. Re-issued from the original publisher in it's original form. Contents - Preface - Chapter 1. Introduction - 2. Fibers - 3. Fabrics - 4. Dyes - 5. Basic Rules for Stain Removal - 6. Safety Rules to Insure Best Results - 7. Equipment Aids to Stain Removal - 8. Stain Removing Agents - 9. Stains and Methods for Their Removal - Preface - Home care requires the utmost skill and ingenuity of the homemaker. Because of the extremely high standard of dress and personal hygiene in this country, endless care and effort is expended in order to maintain this acute attention to good grooming. For the homemaker, the removal of stains represents a major portion of her expertness in running her home successfully. Each member of her family contributes his and her share of stains not only in the natural use of their surroundings, but more often in their use of wearing apparel. The frequent need for removing stains from clothing bears heavily upon the budget where one is completely dependent upon professional cleaning. To meet this challenge, the thrifty and efficient homemaker seeks information and the means by which she can care for garments, household linen, and household furnishings. The professional cleaner is equally alert in keeping abreast with information that concerns his work and efficiency. Textile fabrics are of the greatest variety and complexity in their chemical and physical composition. Also the stains are often complex in nature since a stain may be composed of several staining substances such as, for example, machine oil which in addition to the oil, may contain particles of metal and carbon. The dry cleaner in the end is sought for his special skill and experience in dealing with complex stains and for the reconditioning of a fabric as near as possible to its original physical condition and appearance. This book is designed to present basic facts and give simple rules and directions for the use of the homemaker who can then remove spots and stains effectively and economically. The book also affords the dry cleaner with a ready reference to the stain removing chemicals and the procedures in applying them. The dry cleaning industry and allied industries where spot and stain removal are of interest, should welcome an up-to-date and simplified treatment of this subject which includes information on the newer fibers, fabrics, and dyes.