Results 51 to 60 of about 2,307,352 (222)

Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 [PDF]

open access: yesQuímica Nova, 2010
La-incorporated SBA-15 mesopourous molecular sieves (LaSBA-15) were directly synthesized with aim to convert ethanol to ethylene. The samples were characterized by XRD, XRF, nitrogen sorption and acidity, by thermodesorption of n-buthylamine. The results have indicated that all the samples have showed high ordered mesostructure with a large average ...
Luz Jr, Geraldo E.   +4 more
openaire   +3 more sources

Bridging the Gap Between L1 and L2: Enhanced Emotional Vocabulary Through Elaborative Processing in Spanish‐Speaking English Language Learners

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Foreign languages are often learnt in formal and disembodied environments which may limit the emotional resonance of their vocabulary and their pragmatic usage in real‐life communication. In a context of English as a foreign language (EFL), this study examines whether elaborative processing as a teaching strategy leads to changes in the ...
María Jesús Sánchez   +3 more
wiley   +1 more source

Condylar position comparison between two centric relation recording methods, by means of a spiral tomography technique [PDF]

open access: yes, 2014
Artículo de publicación SciELOObjetivo: El objetivo de este estudio fue comparar la variación de la posición del cóndilo mandibular entre la técnica de registro de relación céntrica auto-inducida de tipo activa y otra de manipulación mandibular de tipo ...
Barbano Maturana, M.   +3 more
core   +2 more sources

New insights into the putative XX/XY sex chromosomal system in blue‐eyed red‐fin pleco Hypostomus soniae (Siluriformes, Loricariidae)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Luan Aércio Melo Maciel   +6 more
wiley   +1 more source

Composición de nidos de aves silvestres en parques urbanos y periurbanos del centro del Estado de Veracruz, México

open access: yesRevista Biológico Agropecuaria Tuxpan, 2018
La urbanización modifica la abundancia y tipo de materiales naturales usados por aves en la nidación. La incorporación de materiales antrópicos (de uso humano) al nido es riesgosa para los polluelos y el éxito reproductivo de las poblaciones.
Rafael Flores Peredo   +5 more
doaj   +1 more source

Tipo Tátil: material de ensino de tipografia para deficientes visuais [PDF]

open access: yesBlucher Design Proceedings, 2018
The purpose of this article is to describe a study on the teaching of typography for visually impaired people. The research proposes the development of a didactic material that aims to enable the visually impaired to know more about typography through touch. The article presents the studies done with the visually impaired for the development of this
Luciana Eller Cruz   +1 more
openaire   +1 more source

Testing the size‐grain hypothesis in a generalist predator: The case of an ant species in the Brazilian savannah

open access: yesJournal of Zoology, EarlyView.
In our recent study, we examined whether ants in the Brazilian Cerrado follow the “grain‐size hypothesis,” which proposes that larger ants should have proportionally longer legs to move efficiently across different environments. We used Ectatomma permagnum, a common predatory ant in the Cerrado, measuring hundreds of individuals collected from various ...
A. Sandim, R. Aranda
wiley   +1 more source

Regulatory Approaches in the Face of a Pandemic: Assessing the Role of Ideology, Context, and Rule Design in Four Spanish Regions

open access: yesPublic Administration, EarlyView.
ABSTRACT Regulatory instruments to manage the COVID‐19 pandemic have been the object of rich scholarly debates, primarily focused on early national responses to the crisis. We investigate variation in sub‐national regulatory approaches when a crisis is normalized, its association with competing political ideas about the health‐economy trade‐off and the
Salvador Parrado   +3 more
wiley   +1 more source

Quantificação de material combustível na serapilheira em plantio de Eucalipto em Aquidauana, MS

open access: yesBiodiversidade Brasileira, 2019
A quantidade e o tipo de material combustível são componentes fundamentais para a ocorrência de um incêndio florestal. Em reflorestamentos, o fogo é bastante temível visto que há maior valor econômico associado a madeira, como também pelo acúmulo ...
Thiago Woiciechowski   +5 more
doaj   +3 more sources

COLEÇÃO DE COCCOIDEA (HEMIPTERA; STERNORRHYNCHA) DO MUSEU PROF. RAMIRO GOMES COSTA, RS, BRASIL

open access: yesPesquisa Agropecuária Gaúcha, 2001
Coccoidea é um grupo homogêneo de insetos conhecidos popularmente como cochonilhas. Caracterizam-se pela grande adaptação à vida parasitária, são fitógafos, e podem causar sérios danos à economia agrícola por sua condição potencial de pragas.
VERA REGINA DOS SANTOS WOLFF
doaj  

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