Ubiquitous
Mostrando 1-12 de 1645 artigos, teses e dissertações.
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1. Innovative gas chromatographic determination of formaldehyde by miniaturized extraction and on-fiber derivatization, via SPME and SPME Arrow
Formaldehyde (FA) is a carbonyl compound, ubiquitous in the environment and among the most widespread pollutants: it has exhibited toxic properties and is classified as a human carcinogen. FA is released from several sources, both temporary (e.g., combustion processes) and permanent (e.g., building products). This work proposes an innovative fully-automated
Química Nova. Publicado em: 2022
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2. A Catalysis Guide Focusing on C–H Activation Processes
From the recent development of catalytically controlled C-H activation with amenable synthetic routes obviating many challenges, the demand for this strategy has raised significantly to perform complex organic transformations. The impact of the achieved results in both homogeneous and heterogeneous catalysis reflects its efficacy in modern synthetic chemistr
J. Braz. Chem. Soc.. Publicado em: 2021-05
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3. Feeding ecology of blue rock pigeon (Columba livia) in the three districts of Punjab, Pakistan
Resumo O presente artigo fornece informações sobre os regimes de alimentação dos dois sexos do pombo-da-rocha-azul (Columba livia Linn.) nos habitats amostrados dos três distritos, a saber: Rawalpindi, Faisalabad e Bahawalpur, da província de Punjab, Paquistão. Este pombo-doméstico, considerado espécie onipresente, habita tanto as pastagens quanto o
Braz. J. Biol.. Publicado em: 02/12/2019
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4. Geografia jurídica tropicalista: a crítica do materialismo jurídico-espacial
Resumo Tendo em vista situações concretas que colocam desafios materialistas à teoria do direito, apresentamos e discutimos questões que fundamentalmente afetam a compreensão do fenômeno jurídico, a partir de uma formulação-teste: a forma-jurídica tem configurado os aspectos da nossa existência a partir de certas imagens do espaço que tendem a fo
Rev. Direito Práx.. Publicado em: 25/11/2019
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5. Direct Assay to Evaluate Phosphoenolpyruvate Carboxykinase Activity
Phosphoenolpyruvate carboxykinase (PEPCK) is a ubiquitous enzyme found in all known groups of organisms, acting in the reversible conversion of oxaloacetate (OAA) to phosphoenolpyruvate (PEP) in the presence of divalent metal ion, and dependent of adenosine 5’-triphosphate (ATP) or guanosine-5’-triphosphate (GTP). PEPCK is an important enzyme in the meta
J. Braz. Chem. Soc.. Publicado em: 21/10/2019
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6. Migrant Remittances and Rights to Physical Integrity: A Cross-section Study of Latin America (1981-2014)
This article analyzes aspects of two ubiquitous phenomena in contemporary societies: migration and violations of rights to physical integrity. It focuses on violations of rights to physical integrity, such as torture and political assassination, that take place in the countries that migrants leave behind (home countries). This paper explores the association
Bras. Political Sci. Rev.. Publicado em: 26/09/2019
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7. Uso de bebidas alcoólicas por estudantes: análise de propagandas de festas em um campus universitário
A proposta deste trabalho foi interpretar as imagens de propagandas de festas veiculadas em um campus universitário em relação ao consumo de álcool por estudantes. Os elementos plásticos, icônicos e linguísticos das propagandas foram submetidos a uma análise semiótica de imagens. Organizaram-se os 85 temas levantados em seis categorias: bebidas alco
Interface (Botucatu). Publicado em: 05/08/2019
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8. DIVERSITY OF ARBUSCULAR MYCORRHIZAL FUNGI IN FOREST ECOSYSTEMS OF BRAZIL: A REVIEW
ABSTRACT Plants can stablish symbiosis with arburcular mycorrhiza fungi (AMF), in which the fungus uses carbohydrates synthesized by plant photosynthesis in exchange for soil nutrients. AMF symbiosis may benefit plants by increasing the rates of nutrient uptake, tolerance to abiotic stresses, protection against pathogens and, by promoting resilience of fores
CERNE. Publicado em: 20/05/2019
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9. Evaluation of pathogen P21 protein as a potential modulator of the protective immunity induced by Trypanosoma cruzi attenuated parasites
BACKGROUND TcP21 is a ubiquitous secreted protein of Trypanosoma cruzi and its recombinant form (rP21) promotes parasite cell invasion and acts as a phagocytosis inducer by activating actin polymerisation in the host cell. OBJECTIVE Our goal was to evaluate if the additional supplementation of rP21 during a prime/boost/challenge scheme with T. cruzi TCC
Mem. Inst. Oswaldo Cruz. Publicado em: 20/05/2019
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10. Trabalho ubíquo na pós-graduação stricto sensu em educação: in/extensificação e multitarefa
RESUMO O trabalho docente universitário mediado por tecnologias digitais e móveis ganha cada vez mais contornos de atividade ubíqua, com suas paradoxais repercussões que afetam dois elementos comuns a todas as atividades humanas: tempo e espaço. Desbordamentos de fronteiras entre público e privado e a incorporação do modus operandi da reestruturaçã
Rev. Bras. Educ.. Publicado em: 25/04/2019
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11. Petrography and detrital zircon U-Pb geochronology of sedimentary rocks of the Campo Alegre Basin, Southern Brazil: implications for Gondwana assembly
Abstract The Campo Alegre Basin is a volcano-sedimentary sequence covering an area of about 500 km 2 , located at the northeast portion of Santa Catarina state (Brazil), and formed during the late stages of the Neoproterozoic era. Three main stratigraphic units compose this basin, the lowermost of which is the Bateias Formation, corresponding to the pre-volc
Braz. J. Geol.. Publicado em: 15/04/2019
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12. Ultrastructural viewpoints on the interaction events of Scedosporium apiospermum conidia with lung and macrophage cells
BACKGROUND Scedosporium apiospermum is a ubiquitous, emerging and multidrug-resistant fungal pathogen with still rather unknown virulence mechanisms. OBJECTIVES/METHODS The cellular basis of the in vitro interaction between fungi and host cells/tissues is the determinant factor for the development of a successful in vivo infection. Herein, we evaluated th
Mem. Inst. Oswaldo Cruz. Publicado em: 08/10/2018