Results 51 to 60 of about 456,727 (155)

Revisión sistemática de la literatura sobre mejoramiento de las propiedades mecánicas del concreto adicionando fibras artificiales y naturales

Ingeniería, 2022
Contexto: Toda vez que hoy en día las estructuras están siendo afectadas debido al medio ambiente en el que se ubican, así como por fuertes movimientos sísmicos, llevándolas en algunos casos hasta el colapso.
Yamalit Itamar Olivera Pérez, Sandro Piero Guevara Saravia, Socrates Pedro Muñoz Pérez   +2 more
doaj   +1 more source

Amphibians' Expansion to Record Elevations Influences Chytrid (Batrachochytrium dendrobatidis) Infection Dynamics

Biotropica, Volume 58, Issue 2, March 2026.
Peruvian frogs underwent a climate‐driven range expansion into deglaciating mountains, exposing themselves and their fungal pathogen Batrachochytrium dendrobatidis (Bd) to challenging new thermal environments. Bd has dispersed extensively in these new habitats, and elevation may mediate the apparent sublethal impacts of infection for frogs.
Emma Steigerwald, Cassandra Gendron, Juan C. Chaparro, Rosemary G. Gillespie, Allie Byrne, Rasmus Nielsen, Erica Bree Rosenblum   +6 more
wiley   +1 more source

Intelligent Tutoring Systems Need Teachers

Journal of Computer Assisted Learning, Volume 42, Issue 1, February 2026.
ABSTRACT Background The development and distribution of digital learning software, such as intelligent tutoring systems (ITSs), has evolved into a billion‐dollar industry, impacting a vast number of students worldwide. A large number of studies on ITSs have focused on their effects on learning outcomes.
Lisa Bardach, Korbinian Moeller, Miguel Ruiz‐Garcia, Younes Strittmatter, Jennifer Meyer, Sebastian Musslick, Markus Spitzer   +6 more
wiley   +1 more source

La aplicación matemática y su relevancia en la homomorfía entre estructuras matemáticas y físicas

Revista de Filosofía Universidad Iberoamericana
El objetivo de este breve artículo es mostrar no sólo cómo se establece la homomorfia entre sistemas matemáticos y sistemas físicos a partir de lo que he llamado "síntesis estructural", sino que cal similaridad es posterior a la aplicación matemática. A
Jesús Jasso Méndez
doaj   +1 more source

EL PROBLEMA DE LA ESCALA DE PLANCK

Revista de Investigación de Física, 2009
Como resultado de investigar el régimen de Planck por medio del propio principio de Planck, el principio de incertidumbre de Heisenberg y la ecuación de existencia de Einstein surge el concepto del punto físico el cual sería una abertura del universo de ...
Oscar Monroy Cárdenas, Mateo Márquez Jacome   +1 more
doaj   +1 more source

Repensar la producción contemporánea del Hábitat, vulnerabilidad y pobreza en la ciudad

, 2017
EDITORIAL / Walter Imilan O. El fenomeno de la urbanizacion es hoy por hoy protagonizado por paises del hemisferio Sur. Muchos centros industriales que sostuvieron y dieron forma a la urbanizacion de los paises del Norte durante el siglo XX, y que ...
Walter Imilan O
semanticscholar   +1 more source

Multianalytical Study of Amuletic and Talismanic Islamic‐African Paper Manuscripts in the Slovene Ethnographic Museum

ChemPlusChem, Volume 90, Issue 12, December 10, 2025.
The image illustrates a multi‐technique analysis of Islamic‐African manuscripts from the nineteenth to twentieth centuries. It highlights methods like microscopy, hyperspectral imaging, FTIR, LIF, Raman, LIBS, and furnish analysis used to study paper fibers, inks, and dyes—revealing a blend of local and trade materials and a rich fusion of Qur’anic and
Abdelrazek Elnaggar, Hend Mahgoub, Laura Maestro‐Guijarro, Ana Crespo Ibáñez, Paula María Carmona‐Quiroga, Santiago Sánchez‐Cortés, Žiga Rehar, Gregor Kos, Ahmed Ameen, Marko Frelih, Matija Strlič, Mohamed Oujja, Marta Castillejo   +12 more
wiley   +1 more source

Reliability Assessment of Welded Beam‐to‐Column Joints Using Physics‐Informed Neural Networks

ce/papers, Volume 8, Issue 6, Page 525-530, December 2025.
Abstract Despite advances in joint modelling, the ongoing demand for more efficient and sustainable steel structures calls for further improvements in the design of connections. This paper presents part of a broader research effort aimed at enhancing the design efficiency of steel joints by realistically capturing their behavior and enabling the ...
Filip Ljubinković, Adriano de Carvalho, Jorge Conde, Luís Simões da Silva   +3 more
wiley   +1 more source

Is there redundancy in bioengineering for molluscan assemblages on the rocky shores of central Chile

, 2007
En los ecosistemas marinos los organismos bioingenieros modifican habitats a traves de sus propias estructuras fisicas e incrementan la diversidad local.
B. Kelaher, J. Castilla, L. Prado
semanticscholar   +1 more source

Mechanical Characterization of Column Web in Compression Component for Welded Joints

ce/papers, Volume 8, Issue 6, Page 794-799, December 2025.
Abstract The Column Web in Compression (CWC) component oftentimes plays a critical role in the design of steel joints, especially for slender column web panels, where the behaviour is governed by local instability. Proper characterization and modelling of the mechanical behaviour of this component are fundamental for a safe and economical design.
Fernando F. Ribeiro, Jorge C. Conde, Luís S. da Silva   +2 more
wiley   +1 more source