Results 31 to 40 of about 1,628 (255)

Polarization Calibration of a Microwave Polarimeter with Near-Infrared Up-Conversion for Optical Correlation and Detection

open access: yesSensors, 2022
This paper presents a polarization calibration method applied to a microwave polarimeter demonstrator based on a near-infrared (NIR) frequency up-conversion stage that allows both optical correlation and signal detection at a wavelength of 1550 nm.
Francisco J. Casas   +4 more
doaj   +1 more source

Fidel Castros fravær udramatisk [PDF]

open access: yes, 2006
Forhåbninger om at Cuba vil gå mere eller mindre i opløsning ved Fidel Castros bortgang, ser ud til at være skudt i sænk.
Lindvig, Niels
core  

Remote Activation of Wnt Signaling and Cell Proliferation by E‐Cadherin Magnetomechanical Stimulation

open access: yesAdvanced Functional Materials, EarlyView.
A pioneering magnetogenetic toolkit enables non‐invasive, precise spatiotemporal modulation of intracellular Wnt/β‐catenin signaling. Functionalized magnetic nanoparticles (MNPs@E/EC15) target cellular E‐cadherins to generate localized magnetomechanical forces under low‐intensity magnetic fields.
Christian Castro‐Hinojosa   +7 more
wiley   +1 more source

Observaciones en torno al poblamiento castreño de la Edad del Hierro en Asturias

open access: yesTrabajos de Prehistoria, 2001
La investigación actual sobre la Edad del Hierro en Asturias (Norte de España) se encuentra inmersa en un debate sobre cronologías y tradiciones histórico-culturales que no contribuye en absoluto al conocimiento positivo de la realidad histórica ...
Sergio Ríos González   +1 more
doaj   +1 more source

CONTRIBUTIONS TO THE STUDY OF THE ANIMAL HIDE-SHAPED GOLD “AMULET-PENDANTS” FROM THE CASTROS CULTURE

open access: yes, 2023
Material suplementario para el artículo "LOS “COLGANTES-AMULETO” DE ORO CASTREÑOS EN FORMA DE PIEL EXTENDIDA: APORTACIONES PARA SU ESTUDIO", Revista Complutum nº 34, 2 (año 2023).
García Vuelta, Óscar
core   +1 more source

Culinary Chemistry as a Platform for Interfacial Materials Design

open access: yesAdvanced Materials Interfaces, EarlyView.
Culinary processes control interfaces through heating, shear, gelation, and molecular transport. This Review connects selected gastronomic examples with food‐derived nanomaterials, plasmonic sensing, anthocyanin photovoltaics, and intelligent packaging. Original agar‐based plasmonic films illustrate the proposed translation.
Josep Moreno   +12 more
wiley   +1 more source

Sistemas defensivos proto-históricos de Tras-Os-Montes Ocidental (Norte de Portugal)

open access: yesCuadernos de Estudios Gallegos, 2008
O texto pretende contribuir para uma reflexão e discussão em torno dos sistemas defensivos, particularmente em relação às muralhas, de Trás-os-Montes Ocidental (Norte de Portugal), que serão relacionadas a um tipo específico de actividade produtiva e ...
João Mário Martins da Fonte
doaj   +1 more source

Greener Solvents for the Photoisomerization and Catalytic Heat Release of a Norbornadiene‐Based Molecular Solar Thermal Energy Storage System

open access: yesAdvanced Science, EarlyView.
A Molecular Solar Thermal (MOST) system combining a scalable norbornadiene–quadricyclane photoswitch, a biodegradable solvent, propylene carbonate, and noble and first‐row metal catalysts, is presented. Propylene carbonate boosts photoisomerization quantum yield by 25% compared to toluene, prolongs energy storage by an additional 15 days, and enables ...
Lucien Magson   +8 more
wiley   +1 more source

A arqueologia dos castros no norte de Portugal: balanço e perpectivas de investigação [PDF]

open access: yes, 1988
Realizar urn balanço da investigação relativa aos castros do Norte de Portugal não constitui uma tarefa fácil. Trata-se de urn domínio com uma longa tradição de pesquisas, que envolve um número considerável de investigadores, servido por uma extensa ...
Martins, Manuela
core   +1 more source

Castros de un valle gallego. Los del Ribero de Avia (Orense) [PDF]

open access: yes, 1953
Muchos son todavía los problemas, pendientes de solución, que encierra la denominada, acertadamente, "cultura norte de los castros". En cuanto el lento y penoso trabajo catalogador no esté terminado, y, sobre todo-, en cuanto éste no alcance a regiones ...
García Al Tarez, M. Rubén
core  

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