Results 71 to 80 of about 43,699 (203)

Smart learning environments, and not so smart learning environments: a systems view

open access: yesSmart Learning Environments, 2018
It is fruitless to talk of smart learning environments unless we know what is meant by those that are not smart. All environments influence behaviour and, by and large, are in turn influenced by the behaviour of the agents of which they are at least ...
Jon Dron
doaj   +1 more source

Dron en impresión 3D

open access: yesLetras ConCiencia TecnoLógica, 2023
Investigar el potencial de la impresión 3D para reducir el costo de los drones, permitió que se evaluaran los beneficios potenciales de la impresión 3D en el desarrollo estructural, el diseño y la creación de exoesqueletos para drones. La impresión 3D podría reducir significativamente los costos de desarrollo y producción de drones, lo que podría ...
openaire   +1 more source

On volumes of hyperideal tetrahedra with constrained edge lengths

open access: yes, 2019
Hyperideal tetrahedra are the fundamental building blocks of hyperbolic 3-manifolds with geodesic boundary. The study of their geometric properties (in particular, of their volume) has applications also in other areas of low-dimensional topology, like ...
Frigerio, Roberto, Moraschini, Marco
core   +1 more source

A novel mechanism explaining the temperature dependence of marine unicellular nitrogen‐fixing cyanobacteria

open access: yesLimnology and Oceanography Letters, Volume 10, Issue 3, Page 287-297, June 2025.
Abstract The major marine nitrogen‐fixing cyanobacterium, Crocosphaera watsonii, is restricted to warm tropical and subtropical oceans, while the underlying mechanisms remain unclear. C. watsonii fixes nitrogen (oxygen‐sensitive) and carbon (oxygen‐evolving) during night and day, respectively.
Lixia Deng   +6 more
wiley   +1 more source

Savaş Haberciliğinde Dron Kullanımının Baudrillard Üzerinden İncelenmesi

open access: yesTürkiye Medya Akademisi Dergisi
Günümüzde olumsuz haber türü olarak görülmekte olan savaş haberciliğinde gazetecilerin dron kullanımına rastlamak mümkün olmaktadır. Buna örnek ise 7 Ekim 2023 tarihinde Filistin ve İsrail arasında yaşanılan çatışma gösterilebilmektedir.
Kübra Erbayrakçı
doaj   +1 more source

Polygonal Complexes and Graphs for Crystallographic Groups [PDF]

open access: yes, 2013
The paper surveys highlights of the ongoing program to classify discrete polyhedral structures in Euclidean 3-space by distinguished transitivity properties of their symmetry groups, focussing in particular on various aspects of the classification of ...
Pellicer, Daniel, Schulte, Egon
core  

Enhanced Photoelectrochemical Water Splitting Using Bismuth/Bismuth Selenide Nanocomposites

open access: yesChemistry – An Asian Journal, Volume 20, Issue 6, March 17, 2025.
Bismuth/Bismuth Selenide (Bi/Bi₂Se₃) nanocomposites exhibit enhanced photoelectrochemical (PEC) water splitting performance due to optimized energy band alignment and efficient charge separation. The figure illustrates the impact of synthesis temperature on bandgap tuning, leading to improved photocatalytic activity and hydrogen evolution.
Sumayyah Khan   +5 more
wiley   +1 more source

p-Learning’s unwelcome legacy

open access: yesItalian Journal of Educational Technology, 2016
Formal teaching of adults has evolved in a context defined, initially, by the constraints of physical boundaries. Classroom walls directly entail timetables, norms and rules of behaviour, social segregation into organized groups and, notably, the course ...
Jon Dron
doaj   +1 more source

Deferred Action: Theoretical model of process architecture design for emergent business processes [PDF]

open access: yes, 2007
E-Business modelling and ebusiness systems development assumes fixed company resources, structures, and business processes. Empirical and theoretical evidence suggests that company resources and structures are emergent rather than fixed.
Patel, NV
core   +1 more source

Generalidades, caracterización e implementación de aeronaves remotamente tripuladas para levantamiento topográfico [PDF]

open access: yes, 2019
Cartilla en la que se brindan conocimientos básicos en el uso de RPA (Aeronave Pilotada Remotamente) aplicada a la topografía, se describen generalidades del dron, conceptos básicos de fotogrametría y procesos para llevar a cabo levantamiento ...
Andrade Álvarez, Angie Ximena   +5 more
core  

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