Results 201 to 210 of about 4,865,607 (338)

La investigación protohistórica en Tarsis

open access: yesRevista Atlántica-Mediterránea de Prehistoria y Arqueología Social, 2003
Oswaldo Arteaga Cuadrado   +1 more
openaire   +1 more source

Inducing Chirality and Chiral Instabilities in Ferrogels with Homogenous Magnetic Fields

open access: yesAdvanced Functional Materials, EarlyView.
By pre‐aligning magnetic particles into chains, significant chiral deformations are induced by fixing the base of a cylindrical actuator and applying a homogeneous magnetic field. Subsequent base rotation can drive the system into metastable states. Further rotation or reduction of field strength triggers a chiral instability, characterized by a switch
Francisco J. Vazquez‐Perez   +4 more
wiley   +1 more source

Escenarios de investigación [PDF]

open access: yes, 2000
Según muchas observaciones, la educación matemática tradicional sigue el paradigma del ejercicio. Este paradigma contrasta con varios posibles escenarios de investigación que invitan a los estudiantes a involucrarse en un proceso de exploración y ...
Skovsmose, Ole
core  

Cryogenic Focused Ion Beam Milling to Investigate the Anisotropic Magnetotransport Properties of Bismuth Microcrystals

open access: yesAdvanced Functional Materials, EarlyView.
The highly anisotropic Fermi surface of bismuth results in variations in magnetotransport properties across different crystallographic directions, which can be characterized by studying microcrystals. To avoid the observed surface melting under room temperature Focused Ion Beam (FIB) irradiation, two low‐temperature FIB fabrication methods are proposed
Amaia Sáenz‐Hernández   +6 more
wiley   +1 more source

Investigación educativa I [PDF]

open access: yes, 2006
El texto se inicia con una presentación del estado actual del debate en torno a los enfoques cualitativo, cuantitativo e integrado. Los capítulos posteriores se constituyen a partir de una separación analítica de los paradigmas cualitativo y cuantitativo,
Aravena, Marcela   +4 more
core   +1 more source

A Novel Sprayable Fibrinogen/Glycosaminoglycans/Collagen‐Based Bioink for Skin Wound Healing Applied by a Handheld Dual‐Head Airbrush

open access: yesAdvanced Healthcare Materials, EarlyView.
A dual‐head airbrush‐based spraying device, combined with a fibrinogen bioink enriched with glycosaminoglycans and collagen, enables the delivery of biomaterials and cells to promote wound healing. This system demonstrates effective skin regeneration in vitro and in vivo, with comparable results to autografts.
Paula Pleguezuelos‐Beltrán   +7 more
wiley   +1 more source

Universities and RIS3: the case of Catalonia and the RIS3CAT Communities [PDF]

open access: yes, 2016
Alias, Josep   +3 more
core   +1 more source

La investigación multimétodo [PDF]

open access: yes, 2009
Publicado en: Araceli Serrano, A., (dir) Con Francisca Blanco, Juan Andrés Ligero, Francisco Alvira y Modesto Escobar (2011) Materiales prácticos para el abordaje de la articulación metodológica en las ciencias sociales.
Alvira Martín, Francisco   +5 more
core   +1 more source

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