Sarah Howie – författare

he hedgehog signalling pathway is highly conserved and seen in organisms ranging from Drosophila to humans. This pathway is Tcritical in determining cell fate decisions in a variety of different cell types. There are several vertebrate analogues of the Drosophila hedgehog protein of which the most widely studied is Sonic hedgehog (Shh). Shh signalling classically involves the Gli family of zinc-fmger transcription factors. The Shh signalling pathway is well characterised in the develop­ ment of a number of vertebrate organ systems. It could indeed be argued that the Shh and Gli signalling may well be involved at some stage in the development of all the major organ systems in vertebrates. This volume rep­ resents a concerted drive to bring together *state of the art' reviews by lead­ ing experts in the field of Shh and Gli signalling in development from all over the world. The chapters span vertebrate organisms from zebrafish to humans and cover development of the multiple organ systems in which the Shh signalling pathway is crucial for normal development. There are chap­ ters on the development of the central nervous system, skeletal struc­ tures, visceral organs, prostate, lung, immune system and the structures of the human face. The authors themselves span three major continents and multiple nationalities which admirably illustrates the worldwide nature of the science.

he hedgehog signalling pathway is highly conserved and seen in organisms ranging from Drosophila to humans. This pathway is Tcritical in determining cell fate decisions in a variety of different cell types. There are several vertebrate analogues of the Drosophila hedgehog protein of which the most widely studied is Sonic hedgehog (Shh). Shh signalling classically involves the Gli family of zinc-fmger transcription factors. The Shh signalling pathway is well characterised in the develop­ ment of a number of vertebrate organ systems. It could indeed be argued that the Shh and Gli signalling may well be involved at some stage in the development of all the major organ systems in vertebrates. This volume rep­ resents a concerted drive to bring together *state of the art'' reviews by lead­ ing experts in the field of Shh and Gli signalling in development from all over the world. The chapters span vertebrate organisms from zebrafish to humans and cover development of the multiple organ systems in which the Shh signalling pathway is crucial for normal development. There are chap­ ters on the development of the central nervous system, skeletal struc­ tures, visceral organs, prostate, lung, immune system and the structures of the human face. The authors themselves span three major continents and multiple nationalities which admirably illustrates the worldwide nature of the science.

he hedgehog signalling pathway is highly conserved and seen in organisms ranging from Drosophila to humans. This pathway is Tcritical in determining cell fate decisions in a variety of different cell types. There are several vertebrate analogues of the Drosophila hedgehog protein of which the most widely studied is Sonic hedgehog (Shh). Shh signalling classically involves the Gli family of zinc-fmger transcription factors. The Shh signalling pathway is well characterised in the develop­ ment of a number of vertebrate organ systems. It could indeed be argued that the Shh and Gli signalling may well be involved at some stage in the development of all the major organ systems in vertebrates. This volume rep­ resents a concerted drive to bring together *state of the art' reviews by lead­ ing experts in the field of Shh and Gli signalling in development from all over the world. The chapters span vertebrate organisms from zebrafish to humans and cover development of the multiple organ systems in which the Shh signalling pathway is crucial for normal development. There are chap­ ters on the development of the central nervous system, skeletal struc­ tures, visceral organs, prostate, lung, immune system and the structures of the human face. The authors themselves span three major continents and multiple nationalities which admirably illustrates the worldwide nature of the science.

This book explores an under-researched but vital part of education: the first year at primary/elementary school. The work shows that children’s progress varies enormously from school to school, class to class and child to child. This variation is important because the more progress that children make in that first year of school, the higher their academic attainment at the end of compulsory schooling. The iPIPS (international Performance Indicators in Primary Schools) project, upon which this book is based, has been able to provide deeper insights into some of the key issues within and across different contexts whilst highlighting new and some ongoing issues. Despite all the work there remain unanswered or new puzzling issues which are also explored.  We need to know how to improve the education at that stage and, more broadly, we need greater clarity about when children should be taught to read and be introduced to formal arithmetic, in other words, when they should start school.  We also need to be clearer about whether, when and how young children should be assessed. The book will suggest some answers but it will raise important questions and dilemmas for which we do not, as yet, have answers.