Results 21 to 30 of about 200 (115)

A Model for Scale-Free Networks: Application to Twitter

open access: yesEntropy, 2015
In the last few years, complex networks have become an increasingly relevant research topic due to the large number of fields of application. Particularly, complex networks are especially significant in the area of modern online social networks (OSNs ...
Sofía Aparicio   +2 more
doaj   +1 more source

Conservation of the Beira Railway Station in Mozambique: Lessons from a 20th-Century Heritage Case Study in Africa

open access: yesBuildings, 2022
The conservation of built cultural heritage is a fundamental task for modern societies. Specialized expertise is necessary to define a proper strategy to preserve a heritage that is accumulating damage due to the deterioration of materials, repeated ...
Estefanía Chaves   +3 more
doaj   +1 more source

Fisiología e instrumentación en el cambio de siglo: José Gómez Ocaña

open access: yesArbor: Ciencia, Pensamiento y Cultura, 1999
Los aparatos registradores del movimiento humano y animal revolucionaron la Fisiología en el cambio de siglo. José Gómez Ocaña, catedrático de Fisiología de la Universidad de Madrid, fue el introductor en España de esas nuevas técnicas.
Ana Romero de Pablos
doaj   +1 more source

Influence of the Human Skin Tumor Type in Photodynamic Therapy Analysed by a Predictive Model

open access: yesInternational Journal of Photoenergy, Volume 2012, Issue 1, 2012., 2012
Photodynamic Therapy (PDT) modeling allows the prediction of the treatment results depending on the lesion properties, the photosensitizer distribution, or the optical source characteristics. We employ a predictive PDT model and apply it to different skin tumors.
I. Salas-García   +3 more
wiley   +1 more source

Lenguaje y conocimiento científico: perspectivas para una educación española

open access: yesArbor: Ciencia, Pensamiento y Cultura, 2002
Con el horizonte de una marcada preocupación ante el problema que se le plantea a la Lengua española por el abandono a que la somete el imperio de la Lengua inglesa en la creación y uso de términos científicos, y por el exilio lingüístico de los ...
Francisco González de Posada
doaj   +1 more source

Número Completo (Enero-abril)

open access: yesRevista Metropolitana de Ciencias Aplicadas, 2021
Volumen 4, número 1 (enero-abril)   Planeación jerárquica de las transportaciones de carga en una PYME operadora logística Andrea Charpentier Alcívar, Michael Feitó Cespón, Carlos Eduardo Durán Chávez, Carlos Daniel Henríquez Jiménez ...
Jorge Luis León-González
doaj   +1 more source

Sensor-Driven Preventive Preservation of Underground Heritage: A Case Study of the Wine Cellars of Baltanás

open access: yesHeritage
Underground wine cellars represent a fragile form of cultural heritage, where long-term microclimatic imbalance can lead to material degradation, structural instability, and internal collapses.
Fernando Ramonet   +7 more
doaj   +1 more source

RadonFAN: Intelligent Real-Time Radon Mitigation Through IoT, Rule-Based Logic, and AI Forecasting

open access: yesAI
Radon (Rn-222) is a major indoor air pollutant with significant health risks. This work presents RadonFAN, a low-cost IoT system deployed in two galleries at the Institute of Physical and Information Technologies (ITEFI-CSIC, Madrid), integrating ...
Lidia Abad   +4 more
doaj   +1 more source

Smart Nanogels as Enzyme‐Driven Nanomotors for Navigating Viscous Physiological Barriers

open access: yesAdvanced Functional Materials, Volume 36, Issue 2, 5 January 2026.
Two families of urease‐powered nanomotors (NMs), with and without a p‐(2‐hydroxyethyl methacrylate) (p‐HEMA) shell, have been successfully prepared. Both types exhibit effective motion in highly viscous synovial fluid media at low urea concentrations (25 mM).
David Esporrín‐Ubieto   +6 more
wiley   +1 more source

The influence of the curing conditions of concrete on durability after freeze-thaw accelerated testing

open access: yesMateriales de Construccion, 2015
This work relates the curing conditions of concrete with the damage caused by rapid freeze-thaw cycles (ASTM C 666). The “potential” durability of concrete after testing is also studied.
G. Al-Assadi   +4 more
doaj   +1 more source

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