Results 71 to 80 of about 206,226 (234)

Chain Versus Ring: Characterization of a Meta‐Phenylene Ladder Polymer and Its Octameric Macrocycle

open access: yesChemistry – A European Journal, EarlyView.
The synthesis and comprehensive spectral and photophysical analysis of a methyl‐substituted ladder meta‐phenylene macrocycle (MeLMMP) and its polymer analogue (MeLPMP) show that, despite differing topologies (macrocycle vs. polymer), both display nearly identical electronic and photophysical properties due to cross‐conjugation.
Paulo D. Nunes Barradas   +4 more
wiley   +1 more source

Dialogical identities in students from cultural minorities or students categorised as presenting SEN: How do they shape learning, namely in mathematics? [PDF]

open access: yes, 2007
Portuguese schools are multicultural. Diversity is their main characteristic. Portuguese policy documents assume inclusive principles (Ainscow & César, 2006).
César, Margarida
core  

LZTS2 Negatively Regulates Centrosomal CEP135 Levels and Microtubule Nucleation

open access: yesCytoskeleton, EarlyView.
ABSTRACT The microtubule cytoskeleton is a fundamental functional component of the cell. In vertebrate proliferating cells, centrosomes are the primary microtubule organizing center (MTOC), and their dysregulation has been linked to genomic instability and cancer.
Catarina Peneda   +4 more
wiley   +1 more source

Comportamento defensivo de abelhas africanizadas na Fazenda Experimental-UFERSA, Mossoró-RN, Brasil.

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2013
O objetivo do trabalho foi avaliar o nível de agressividade de abelhas africanizadas em função à perseguição e ao número de ferroadas. A pesquisa foi realizada em apiários da Fazenda Experimental Rafael Fernandes, UFERSA, Mossoró-RN.
Armando Ferreira da Silva   +4 more
doaj   +2 more sources

Poly(Ionic) Liquid‐Enhanced Ion Dynamics in Cellulose‐Derived Gel Polymer Electrolytes

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Advancing Energy Storage: Gel Polymer Electrolytes with Promising Potential Gel polymer electrolytes (GPEs) incorporating methyl cellulose and a range of ionic/polymeric achieved Li+ transference numbers comparable to traditional liquid electrolytes.
Tiago G. Paiva   +7 more
wiley   +1 more source

Teacher agency in curriculum and pedagogical development: Reflections from a design research project about self‐regulated learning in secondary schools

open access: yesThe Curriculum Journal, EarlyView.
Abstract Transnational guidelines on skills and competencies for lifelong learning, along with curriculum reforms to promote curriculum flexibility and autonomy in schools, are pressing teachers to be engaged in curriculum and pedagogical innovation focused on student‐centred approaches favourable to developing learner autonomy.
Thiago Freires   +3 more
wiley   +1 more source

Articulação Ciência-Sociedade através do património artístico local – atividades e recursos didáticos centrados no Museu Cargaleiro

open access: yesIndagatio Didactica, 2016
A educação em ciências com orientação Ciência-Tecnologia-Sociedade (CTS) centra-se no reconhecimento da capacidade da ciência para o desenvolvimento de uma sociedade assente nos valores da democracia.
Fátima Paixão   +2 more
doaj   +1 more source

Concepção de trabalho experimental de educadores de infância e as suas práticas didático-pedagógicas [PDF]

open access: yes, 2011
Este trabalho enquadra-se num estudo mais amplo desenvolvido no âmbito do Doutoramento em Didáctica e Formação. O seu principal propósito é divulgar, partilhar e suscitar a discussão sobre alguns dos resultados obtidos ao longo da investigação e que ...
Rodrigues, Maria José   +1 more
core  

Patterns of understorey bird diversity across Amazonian forests: survey effort and range maps predict local species richness

open access: yesEcography, EarlyView.
Species diversity typically increases from higher to lower latitudes, but the regional‐scale variation along this geographic gradient remains unclear. It has been suggested that species diversity throughout Amazonia generally increases westward toward the Andes, but this pattern and its environmental determinants require further investigation for most ...
Pilar L. Maia‐ Braga   +14 more
wiley   +1 more source

Mechanical Behaviour of Vacuum‐Infused GFRP Composites at Elevated Temperatures—Influence of Fibre Architecture

open access: yesFire and Materials, EarlyView.
ABSTRACT This study addresses the influence of fibre architecture on the mechanical properties of vacuum‐infused glass fibre reinforced polymer (GFRP) composites at elevated temperatures (ET). Laminates with three different fibre configurations—unidirectional (UD), bidirectional 0°/90° cross‐ply (BD), and ±45° off‐axis angle‐ply (OA) – were tested in ...
Eloísa Castilho   +4 more
wiley   +1 more source

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