Results 81 to 90 of about 75,730 (262)

O lado invisível da participação política: gestão da informação dos mecanismos digitais de participação política nos parlamentos da America Latina, com uma analise do caso da Câmara dos Deputados do Brasil

Revista Ibero-Americana de Ciência da Informação, 2015
Em um cenário de expansão democrática da América Latina, os olhares se voltam para iniciativas que impulsionam o aprimoramento da democracia. No eixo da participação surgem projetos para aproximar os cidadãos da esfera pública, entre os quais aqueles ...
Andrea Sampaio Perna
doaj  

Human Foetal Neuroblasts Exhibit BK Channel‐Dependent Membrane Voltage Oscillations upon Depolarization

Advanced Science, EarlyView.
Primary cultures of neuroblasts isolated from the nucleus basalis of Meynert of 12‐weeks‐old human foetuses were prepared. Whole‐cell patch‐clamp recordings were performed by injecting a depolarizing stimulus current (+500 pA; 500 ms), and the membrane voltage recorded; this stimulus current evoked periodic‐like oscillations in membrane voltage ...
Elisabetta Coppi, Federica Cherchi, Martina Venturini, Federico Tommasi, Sandro Gonzi, Chiara Capacci, Giulia Guarnieri, Pasquale Gallina, Annamaria Morelli, Anna Maria Pugliese   +9 more
wiley   +1 more source

Chatting to Learn and Learning to Chat

M/C Journal, 2000
If we consider learning as a meaning-making process where people construct shared knowledge, it becomes a social dialogical activity in which knowledge is the result of an active process of articulation and reflection within a context (Jonassen et al.).
openaire   +1 more source

EndoTac: An Endoscopic Camera‐Based Tactile Sensor with High Sensitivity for Minimally Invasive Surgery

Advanced Science, EarlyView.
EndoTac presents a trocar‐compatible endoscopic vision‐based tactile sensor that uses a convex mirror to enlarge side‐facing tactile coverage during minimally invasive vessel palpation. Distorted tactile images are unwarped and processed by a learning model to estimate vascular deformation, enabling sensitive, spatially distributed tactile perception ...
Yupeng Wang, Nicolas Raison, Xuyang Zhang, Aijia Yang, Lukas Lindenroth, Shan Luo   +5 more
wiley   +1 more source

The history of development of the cultural-historical theory and its contemporary perceptions: answering questions and questioning answers

Вестник Московского университета. Серия 14: Психология
Background. The identification of key periods of development in culturalhistorical theory is not just a task of historical interest. It may help to reconstruct the logics and the moving forces in the development of Vygotsky’s theoretical approaches at ...
Nikolai N. Veresov
doaj   +1 more source

Dicationic Ion‐Pair Doping Enables Stable and High‐Performing Conducting Polymers for Organic Thermoelectrics

Advanced Science, EarlyView.
TAB–2TFSI enables efficient ion‐pair doping across a wide range of conjugated polymers, where the strongly oxidizing TAB core drives charge transfer, and the TFSI counterions promote favorable ionic compensation. This dicationic dopant promotes uniform dopant distribution, improves structural order, and increases carrier delocalization, establishing a ...
Juhyung Park, Shubhradip Guchait, Tanmay Sinha, Cynthia Verduyckt, Vijitha Ignatious, Tzu‐Yi Yu, Heyi Xia, Altynay Kaidarova, Michael Ng, Siebe Detavernier, Martin Rosenthal, Maristella Alessio, Daniel Escudero, Guy Koeckelberghs, Francisco Molina‐Lopez   +14 more
wiley   +1 more source

NUEVO ESCENARIO DE SOCIALIZACIÓN DEL LENGUAJE: EL CHAT Y LOS ADOLESCENTES [PDF]

Perspectivas de la Comunicación, 2010
Este trabajo es parte de un proyecto de investigación denominado “Las Nuevas Tecnologías de Información y Comunicación y sus efectos en el lenguaje escrito de los adolescentes”.Los objetivos que intentaremos develar a través de esta investigación son ...
Claudia Julieta Galera
doaj  

Single‐Cell Profiling Reveals a Protective WNT5A‐ATF3‐FOSB Signaling Axis in Hair Follicle Stem Cells During Androgenetic Alopecia

Advanced Science, EarlyView.
Androgenetic alopecia (AGA) is a common form of hair loss with limited treatment options. Silencing of WNT5A signaling, which is widely known as the trigger of the ncWNT signaling pathway, happens in hair follicle stem cells from balding areas. It leads to downregulation of ATF3 and its target FOSB.
Ruiyu Luo, Ke Fang, Changjiang Zhao, Jiachao Xiong, Yuan Zhu, Mingyang Lu, He Yan, Zihan Li, Baojin Wu, Hua Jiang, Yufei Li   +10 more
wiley   +1 more source

Controllable Cascade Aggregation Ion Programmed Nanomachines and Simple Isolation Enable Tumor‐Derived Small Extracellular Vesicles Detection for Enhanced Breast Cancer Assessment

Advanced Science, EarlyView.
This study developed a convenient, enzyme‐free detection platform based on controllable aggregation ion nanomachines. Its favorable anti‐interference capacity and high sensitivity meet the detection requirements for clinical samples processed via a simple filtration method within 10 min.
Zhihao Zhang, Zijing Liu, Xiangyue Meng, Pengjun Jiang, Jie Qu, Yu Jiang, Binxu Qiu, Jie Chen, Piaopiao Chen   +8 more
wiley   +1 more source

Electrocatalytic Urea Waste Valorization via Water Electrolysis: Transition‐Metal Phosphides for Sustainable Hydrogen Production

Advanced Energy Materials, EarlyView.
This article provides a comprehensive analysis of transition metal phosphides (TMP) as electrocatalysts for urea‐assisted water electrolysis, highlighting the critical role of phosphorus engineering in modulating electronic structure, optimizing active sites, and enhancing catalytic durability.
Shivalingayya Gaddimath, Varsha Kashanner, Soumya Kulkarni, Vishal Sorathiya, Anitha Bamani, Rajveer Singh Rajaura, Mahaveer Kurkuri, Shambhulinga Aralekallu, Yogendra Kumar Mishra   +8 more
wiley   +1 more source