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[null,"1.","Record Nr.",null,"UNINA9910708123903321"]
[null,null,"Titolo",null,"Raising the bar : how education innovation can improve student achievement : hearing before the Subcommittee on Early Childhood, Elementary and Secondary Education, Committee on Education and the Workforce, U.S. House of Representatives, One Hundred Thirteenth Congress, first session, hearing held in Washington, DC, February 14, 2013"]
[null,null,"Pubbl/distr/stampa",null,"Washington : , : U.S. Government Printing Office, , 2013"]
[null,null,"Descrizione fisica",null,"1 online resource (iii, 54 pages)"]
[null,null,"Soggetti",null,"Academic achievement - United States"]
[{"$nulls":4},"Educational innovations - United States"]
[{"$nulls":4},"Educational technology - United States"]
[{"$nulls":4},"Education - Effect of technological innovations on - United States"]
[{"$nulls":4},"Academic achievement - Effect of technological innovations on - United States"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Title from title screen (viewed April 2, 2013)."]
[{"$nulls":4},"Paper version available for sale by the Superintendent of Documents, United States Government Printing Office."]
[{"$nulls":4},"\"Serial no. 113-4.\""]
[null,null,null,"Nota di bibliografia","Includes bibliographical references."]
[null,"2.","Record Nr.",null,"UNINA9910131772503321"]
[null,null,"Autore",null,"Brigitte Faugère (dir.)"]
[null,null,"Titolo",null,"Cueva de los Portales : un sitio arcaico del norte de Michoacán, México"]
[null,null,"Pubbl/distr/stampa",null,"Centro de estudios mexicanos y centroamericanos, 2006"]
[{"$nulls":4},"[Place of publication not identified], : Centro de Estudios Mexicanos y Centroamericanos, 2006"]
[null,null,"ISBN",null,"2-8218-2783-0"]
[{"$nulls":4},"2-8218-1921-8"]
[null,null,"Descrizione fisica",null,"1 online resource (288 pages)"]
[null,null,"Collana",null,"Colección Científica. Arqueología"]
[null,null,"Soggetti",null,"Regions & Countries - Americas"]
[{"$nulls":4},"History & Archaeology"]
[{"$nulls":4},"Mexico"]
[{"$nulls":4},"Michoacán de Ocampo (Mexico) Antiquities"]
[null,null,"Lingua di pubblicazione",null,"Spagnolo"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Bibliographic Level Mode of Issuance: Monograph"]
[null,null,null,"Nota di bibliografia","Includes bibliographical references."]
[null,null,null,"Sommario/riassunto","Hasta el día de hoy, la Cueva de los Portales es el único lugar en el centro norte de México que ha conservado niveles estratigráficos de la época arcaica. Localizado en la parte norte del Estado de Michoacán, Municipio de Penjamillo, el sitio presenta una larga secuencia de ocupación que pudo iniciarse hacia el año 5200 a.C, y prolongarse hasta la Conquista, con una última ocupación por cazadores-recolectores del Pos-clásico. Sin embargo, su principal interés radica en los vestigios ubicados entre el tercero y el sexto milenio a.C. De hecho, se identificaron cuatro fases cronológicas para el intervalo temporal 5200-2000 a.C. En cada fase se encontraron pisos en ocasiones con fogones, acondicionamientos antrópicos conservados, abundante material lítico con herramientas de obsidiana y de rocas andesíticas y desechos alimenticios. El presente volumen ofrece un minucioso análisis de los trabajos de excavación, de la secuencia de ocupación y de los materiales localizados. Es producto de un trabajo colectivo en el que participaron especialistas dedicados al estudio del material lítico y óseo, de las sepulturas, de la arqueofauna, de los fechamientos, de la paleobo-tánica y de los suelos. El resultado permite esbozar la reconstitución de los modos de vida en las fases La Garza (5200-4500 a.C); Palomo (4500-3100 a.C); Portales 3100-2500 a.C.) y Salto (2500-"]
[{"$nulls":4},"2000 a.C), así como ubicar as ocupaciones en el periodo arcaico en México."]