Thinking The Extra

Henry O. Pollak Chairman of the International Program Committee Bell Laboratories Murray Hill, New Jersey, USA The Fourth International Congress on Mathematics Education was held in Berkeley, California, USA, August 10-16, 1980. Previous Congresses were held in Lyons in 1969, Exeter in 1972, and Karlsruhe in 1976. Attendance at Berkeley was about 1800 full and 500 associate members from about 90 countries; at least half of these come from outside of North America. About 450 persons participated in the program either as speakers or as presiders; approximately 40 percent of these came from the U.S. or Canada. There were four plenary addresses; they were delivered by Hans Freudenthal on major problems of mathematics education, Hermina Sinclair on the relationship between the learning of language and of mathematics, Seymour Papert on the computer as carrier of mathematical culture, and Hua Loo-Keng on popularising and applying mathematical methods. Gearge Polya was the honorary president of the Congress; illness prevented his planned attendence but he sent a brief presentation entitled, "Mathematics Improves the Mind". There was a full program of speakers, panelists, debates, miniconferences, and meetings of working and study groups. In addition, 18 major projects from around the world were invited to make presentations, and various groups representing special areas of concern had the opportunity to meet and to plan their future activities.

Many people experience traumatic events and whilst some gradually recover from such experiences, others find it more difficult and may seek professional help for a range of problems. A Casebook of Cognitive Therapy for Traumatic Stress Reactions aims to help therapists who may not have an extensive range of clinical experience. The book includes descriptions and case studies of clinical cases of cognitive behavioural treatments involving people who have experienced traumatic events, including: people with phobias, depression and paranoid delusions following traumatic experiences people with Posttraumatic Stress Disorder (PTSD) people who have experienced multiple and prolonged traumatizations people who are refugees or asylum-seekers. All chapters are written by experts in the field and consider what may be learned from such cases. In addition it is considered how these cases can be applied more generally in cognitive behavioural treatments for traumatic stress reactions. This book will be invaluable to all mental health professionals and in particular to therapists wanting to treat people who have experienced traumatic events, allowing them to creatively apply their existing knowledge to new clinical cases.

Leading scholars respond to the famous proposition by Andy Clark and David Chalmers that cognition and mind are not located exclusively in the head.

The second edition of Top Tips in Urology provides highly clinical tips and rapid-reference "tricks of the trade" to the most common questions and problems that arise for both the practicing urologist and the urologic surgeon. Covering each of the major areas of urology and with contributions for experience practicing urologists and surgeons, this book is a unique book containing valuable information for all urologists dealing with patients on a day to day basis.

An emergent approach to organizational strategy making assumptions that few organizations actually realize the goal of deliberative, top-down strategic planning, and that effective strategy making occurs on a continual basis and is a shared activity of the entire organization. This innovative book provides the first in-depth look at how real organizations are formulating and implementing strategic change under this new paradigm. The authors have dug deep into three large and varied organizations (Hewlett-Packard, the California State University system, and the County of Los Angeles) and identified each one's efforts to develop a new strategic planning process better-suited to match the current pace of change and environmental unpredictability. The book is filled with vignettes, quotes, and real-world examples that illustrate the trend toward faster, more adaptive strategic planning processes. It is relevant for a wide range of business, governmental, and non-profit settings, and should be required reading in any course on strategic planning.

In Cry of Wonder, Gerard W. Hughes, author of God of Surprises, encourages readers to explore their own human experience, the unique doorway opening each of us out into the mystery of our present existence. In our time, such attention to mystery is considered counter-cultural and subversive of law and order. The truth of this observation becomes very clear to us if we give attention to our own felt reactions to the events of our lives. The purpose of this book is to focus our attention on this inner conflict, because it can reveal to us a vision of the transformation into which we are all now being invited in all that we are experiencing in every moment of our existence.