Results 171 to 180 of about 1,124,774 (343)

A Computational Strategy for Identifying Self‐Assembling Food‐Derived Molecules for Antiparasitic Nanotherapy

open access: yesAdvanced Science, EarlyView.
An integrated computational screening strategy identified ursolic acid (UA) and 18β‐glycyrrhetinic acid (18βGA) as a self‐assembling food‐derived molecular pair. The resulting carrier‐free nanoparticles (UA‐18βGA) showed synergistic antiparasitic activity, reduced combined toxicity, and host‐protective anti‐inflammatory effects in zebrafish and murine ...
Shenye Qu   +8 more
wiley   +1 more source

The influence of an online virtual situated environment on a Chinese learning community.

open access: yes, 2013
[[abstract]]This study used an online virtual environment to create and develop a Chinese learning community. The purposes of research were (1) to enhance the Chinese learners’ oral Chinese communication skills and (2) to change the community members’
Tang, J. T.;Lan, Y. J.;Chang, K.E.
core  

Foreign language instruction: Students' perception of a virtual learning environment [PDF]

open access: yes, 2011
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Curso de Graduação em Língua e Literatura Estrangeira.Ambientes Virtuais de aprendizagem (AVA) são recursos e ferramentas tecnológicas adaptadas para serem ...
Jacintho, Fernanda dos S. Becker
core  

Transferable Deep Reinforcement Learning With Edge‐Contour‐Depth Fusion for Autonomous Wireless Capsule Endoscopy Navigation

open access: yesAdvanced Science, EarlyView.
This study presents an anatomical landmark‐guided DRL framework for autonomous wireless capsule endoscopy navigation. Using a lightweight edge‐contour‐depth fusion module, it achieves over 97% coverage across diverse gastric anatomies. To ensure reliability, a two‐stage sim‐to‐real pipeline with an adaptive dynamic programming controller mitigates ...
Haoxuan Wu   +16 more
wiley   +1 more source

The Design, Implementation and Evaluation of a Desktop Virtual Reality for Teaching Numeracy Concepts via Virtual Manipulatives

open access: yes
Virtual reality offers new possibilities and new challenges for teaching and learning. For students in elementary mathematics, it has been suggested that virtual reality offers new ways of representing numeracy concepts in the form of virtual reality ...
Daghestani, L.
core  

Precision Lignocellulosic Biorefinery: Process Regulation From Corn Stover to Products

open access: yesAdvanced Science, EarlyView.
This study presents a precision biorefinery framework that transforms corn stover into high‐value bioproducts through whole‐process regulation. Mechanical fractionation separates feedstock into parenchyma‐rich short fibers and vascular‐bundle‐dominant long fibers.
Xue‐Cheng Lin   +4 more
wiley   +1 more source

On a Virtual Learning Environment

open access: yes, 2010
Education in the Information Society is based on asynchronism in time and space, interactivity and virtual restructuring of the educational space. One way to implement such a model of training is web-based - use of the WWW as a virtual environment to access educational materials or to organize the learning process. This work presents a virtual learning
Angelova, Evgeniya, Staribratov, Ivaylo
openaire   +1 more source

Revisiting Target‐Aware de novo Molecular Generation with TarPass: Between Rational Design and Texas Sharpshooter

open access: yesAdvanced Science, EarlyView.
TarPass provides a rigorous benchmark for target‐aware de novo molecular generation by jointly evaluating protein‐ligand interactions, molecular plausibility, and drug‐likeness on 18 well‐studied targets. Results show that current models often fail to consistently surpass random baseline in target‐specific enrichment, while post hoc multi‐tier virtual ...
Rui Qin   +11 more
wiley   +1 more source

An evaluation of scaffolding for virtual interactive tutorials [PDF]

open access: yes, 2002
Scaffolding refers to a temporary support framework used during construction. Applied to teaching and learning it describes measures to support a learner to become confident and self-reliant in a subject. In a Web environment scaffolding features need to
Pahl, Claus
core  

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