1.

Record Nr.

UNINA9910811893003321

Autore

Lawlor Gary R (Gary Reid), <1961->

Titolo

A sufficient criterion for a cone to be area-minimizing / / Gary R. Lawlor

Pubbl/distr/stampa

Providence, Rhode Island : , : American Mathematical Society, , 1991

©1991

ISBN

1-4704-0872-4

Descrizione fisica

1 online resource (121 p.)

Collana

Memoirs of the American Mathematical Society, , 0065-9266 ; ; Volume 91, Number 446

Disciplina

515/.42

Soggetti

Geometric measure theory

Cone

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

"May 1991, volume 91, number 446 (third of 4 numbers)."

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

""Table of Contents""; ""Abstract""; ""Acknowledgements""; ""Introduction""; ""Chapter 1: A Minimization Test for Cones""; ""1.1 The retraction II""; ""1.2 The curvature criterion""; ""1.3 Simplifications""; ""1.4 Table of vanishing angles""; ""Chapter 2: Calibrations""; ""2.1 Preliminary definitions""; ""2.2 Zero curvature""; ""2.3 Nonzero curvature""; ""2.4 Relationships between Chapter 1 and Chapter 2""; ""Chapter 3: The Differential Equation""; ""3.1 Overview""; ""3.2 Zero curvature""; ""3.3 General curvature""; ""3.4 Numerical analysis of the differential equation""

""Chapter 4: Cones for Which the Criterion is Necessary as Well as Sufficient""""4.1 Introduction""; ""4.2 General setup""; ""4.3 Codimension 1""; ""4.4 Higher codimension""; ""Chapter 5: Examples of Area-minimizing Cones""; ""5.1 Cones over products of spheres""; ""5.2 Cones over unorientable manifolds""; ""5.3 Unions of planes""; ""5.4 Cones over compact matrix groups""; ""5.5 Codimension 1 cones over orbits of group actions""; ""Chapter 6: Some Perturbation Results""; ""6.1 The strict curvature criterion""; ""6.2 Calibration of a nearby minimal graph""

""6.3 Minimal surfaces in a neighborhood of a singularity""""6.4 A persistent singularity in a minimizing surface""; ""Chapter 7: Open Questions""; ""Appendix""; ""References""



2.

Record Nr.

UNINA9910810546903321

Autore

Fleer Marilyn

Titolo

Early learning and development : cultural-historical concepts in play / / Marilyn Fleer

Pubbl/distr/stampa

Cambridge : , : Cambridge University Press, , 2010

ISBN

1-139-88575-8

1-107-48429-4

1-107-47850-2

1-107-47837-5

1-107-47860-X

1-107-47846-4

1-107-47841-3

0-511-84483-2

Descrizione fisica

1 online resource (xxi, 243 pages) : digital, PDF file(s)

Disciplina

372.21

Soggetti

Early childhood education

Early childhood education - Historiography

Play

Child development

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Title from publisher's bibliographic system (viewed on 05 Oct 2015).

Nota di bibliografia

Includes bibliographical references (pages 221-236) and index.

Nota di contenuto

Part I. Learning and Development in Play. A political-pedagogical landscape ; Parallel conceptual worlds ; Teacher beliefs about teaching concepts ; Valued curriculum concepts in early education ; Teacher knowledge of subject matter concepts ; Empirical and narrative knowledge development in play ; Children building theoretical knowledge in play. -- Part II. Cultural-Historical Theories of Play and Learning. Cultural-historical programs that afford play development - play as a leading activity ; Theories about play and learning ; The imaginative act as conceptual play. -- Part III. Learning and Development as Cultural Practice. Views on child development matter ; A revolutionary view of development ; Children's development as participation in everyday practices across institutions ; A cultural-



historical view of play, learning and development.

Sommario/riassunto

Early Learning and Development provides a unique synthesis of cultural-historical theory from Vygotsky, Elkonin and Leontiev in the twentieth century to the ground-breaking research of scholars such as Siraj-Blatchford, Kratsova and Hedegaard today. It demonstrates how development and learning are culturally embedded and institutionally defined, and it reflects specifically upon the implications for the early childhood profession. Divided into parts, with succinct chapters that build upon knowledge progressively, the everyday lives of children at home, in the community, at pre-school and at school are discussed in the context of child development and pedagogy. The book explicitly problematises the foundations of early childhood education, inviting postgraduates, researchers and academics to drill down into specific areas of international discourse, and extending upper-level undergraduates beyond the fundamental underpinnings of their learning. Ultimately Early Learning and Development offers new models of 'conceptual play' practice and theory within a globally resonant, cultural-historical framework.