© Nicolas Brodu. 2003 The astrolabe is an ancient astronomical computer for solving problemsrelating to time and the position of the sun and stars in the sky.Historians credit the invention of the astrolabe to classical Greece.Brass astrolabes were highly developed in the Islamic world of the 8thcentury and later. chiefly as an aid to navigation and as a way offinding the direction of Mecca. In the Middle Ages it found its wayback to Europe and became the chief navigational instrument until theinvention of the sextant in the 18th century.
The Journal of Adolescence is an international, broad based, cross-disciplinary journal that addresses issues of professional and academic importance concerning development between puberty and the attainment of adult status within society. It provides a forum for all who are concerned with the nature of adolescence, whether involved in teaching, research, guidance, counseling, treatment, or other services. The aim of the journal is to encourage research and foster good practice through publishing both empirical and clinical studies as well as integrative reviews and theoretical advances. The Journal of Adolescence is essential reading for psychiatrists, psychologists, social workers, and youth workers in practice, and for university and college faculty in the fields of psychology, sociology, education, criminal justice, and social work.Research Areas Encompassed:• Adolescent development with particular emphasis on personality, social, and emotional functioning• Effective coping techniques for the demands of adolescence• Disturbances and disorders of adolescence• Treatment approaches and other interventionsBenefits to authorsWe also provide many author benefits, such as free PDFs, a liberal copyright policy, special discounts on Elsevier publications and much more. Please click here for more information on our author services.Please see our Guide for Authors for information on article submission. If you require any further information or help, please visit our support pages: http://support.elsevier.com
The Journal of Adolescent Health is a multidisciplinary scientific Journal, which seeks to publish new research findings in the field of Adolescent Medicine and Health ranging from the basic biological and behavioral sciences to public health and policy. We seek original manuscripts, review articles, letters to the editor, commentaries, and case reports from our colleagues in Anthropology, Dentistry and Oral Health, Education, Health Services Research, International Health, Law, Medicine, Mental Health, Nursing, Nutrition, Psychology, Public Health and Policy, Social Work, Sociology, Youth Development, and other disciplines that work with or are committed to improving the lives of adolescents and young adults.The Journal is the official publication of the Society for Adolescent Health and Medicine (SAHM), a multidisciplinary organization committed to improving the health and well-being of adolescents. One of the Society's primary goals is the development, synthesis, and dissemination of scientific and scholarly knowledge unique to the health needs of adolescents. To meet this goal, the Society established the Journal of Adolescent Health in 1980.According to the Journal Citation Reports®, published by Thomson Reuters, Journal of Adolescent Health has a 2012 Impact Factor of 2.966, and is ranked in the following categories:11th of 121 journals in Pediatrics (Science edition)30th of 158 journals in Public, Environmental and Occupational Health (Science edition)14th of 65 journals in Developmental Psychology (Social Science edition)11th of 136 journals in Public, Environmental and Occupational Health (Social Science edition)
Journal of Adolescent Research (JAR), peer-reviewed and published bi-monthly, is the must-read publication for all academics, practitioners, policy-makers, and journalists interested in a global perspective on adolescence (ages 10-18) and emerging adulthood (ages 18-25). It publishes articles that combine both quantitative and qualitative methods, use a systematic qualitative or ethnographic approach, break new theoretical ground, or use a new methodological approach.
Journal of Adult Development, is a forum for publication of peer-reviewed, original theoretical and empirical articles on biological, psychological (cognitive, affective, valuative, behavioral), and sociocultural development in young, middle, and late adulthood. Coverage spans developments in both basic and applied research as well as quantitative and qualitative approaches to inquiry. The range of topics includes the acquisition of moral ideas and principles; the development and character of the ego; the changing nature of human relationships across the life span; relationship between the ethical atmosphere of higher education institutions and the development of adults within them; ways in which clinical interventions and adult developmental characteristics promote development in a variety of settings. Journal of Adult Development is published in collaboration with the Society for Research in Adult Development.