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Jornais Acesso aberto

Armand Silvestre, A. Kiene, James W. Ryland,

... News: Trinta Kilometros De Patinagem, A Buzi Trip, Muralha De Defeza, A Tempting Offer, Telegrams Free State ...

1898 - Gale Group | NCCO EuropeAfrica

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Carlos Alberto Cioce Sampaio, Luzia Neide Coriolano,

... O turismo em Marraquech é seccionado por uma muralha. Na Medina, dentro da muralha, o apelo sociocultural beribére e árabe predomina sob ... fazendo ou não um bom negócio”. Fora da muralha, o circuito sociocultural ocidentalizado prevalece em redes de ... de vida estão próximos ou distantes. Certamente a muralha física é bem menor do que o muro ...

Tópico(s): Urban Development and Societal Issues

2009 - Associação Nacional de Pós-Graduação em Turismo | Revista Brasileira de Pesquisa em Turismo

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Vanessa Stainbach Albino, José Ricardo Peixoto, Valter Caetano, Michelle Souza Vilela,

... replications. Treatments were composed of four rootstocks (Emperador, Muralha, Enforce, and Enpower) and the ungrafted cultivar Sweet ... clusters, and TTA. The rootstocks Emperador, Enforce, and Muralha presented significant difference when compared to the control. ... following yields: Emperador = 66.57 t ha-1; Muralha = 59.79 t ha-1; Enpower = 58.44 ...

Tópico(s): Plant Pathogens and Fungal Diseases

2018 - Associação Brasileira de Olericultura | Horticultura Brasileira

Artigo Brasil Produção Nacional Revisado por pares

Raul N. G. Vianna, Acácio Muralha, Lília Muralha,

From the Department of Ophthalmology, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil. Reprint requests: Raul N.G. Vianna, MD, Av. Ari Parreiras, 438, Icarai, Niterói, RJ, Brazil CEP: 24230-322. RETINA,™ The Journal of Retinal and Vitreous Diseases, encourages authors to submit Brief Reports describing unusual findings, new techniques, and new instruments. Material submitted for consideration in this section of the journal is done so with the assumption that the data provided do not ...

Tópico(s): Retinal Development and Disorders

2003 - Lippincott Williams & Wilkins | Retina

Carta Acesso aberto Brasil Produção Nacional Revisado por pares

Raul N. G. Vianna, Gabriela Onofre, Virginia Ecard, Lília Muralha, Acácio Muralha, Carlos Alexandre de Amorim Garcia,

these events.In this case, the oedema initially underwent complete resolution following a subtenons injection of triamcinolone.The pathophysiology of this ocular manifestation in this condition is unknown.

Tópico(s): Veterinary medicine and infectious diseases

2005 - Springer Nature | Eye

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

C. A. Lopes, L. S. Boiteux, Vlandiney Eschemback,

... Os porta-enxertos mais resistentes foram os híbridos 'Muralha' e 'Guardião', que não diferiram, para a maioria ... infestado, com menor pressão de inóculo, 'Guardião' e 'Muralha' apresentaram, novamente, um desempenho significativamente superior ao de ...

Tópico(s): Plant Pathogens and Fungal Diseases

2015 - Associação Brasileira de Olericultura | Horticultura Brasileira

Artigo Brasil Produção Nacional Revisado por pares

Raul N. G. Vianna, Rafael Pena, Acácio Muralha, Lília Muralha, Eduardo Muranaka,

Tópico(s): Cutaneous Melanoma Detection and Management

2004 - Springer Science+Business Media | International Ophthalmology

Artigo Acesso aberto

Faustino Penalva,

... se salientam no relêvo merecem destaque: a grande muralha que circunda o planalto, os espigões Couto-Prateleiras ...

Tópico(s): Geological formations and processes

1967 - | Boletim da Faculdade de Filosofia Ciências e Letras Universidade de São Paulo Geologia

Artigo Revisado por pares

Catarina Miguel, Ana Claro, A.P. Gonçalves, Vânia S. F. Muralha, Maria João Melo,

Abstract The mechanisms of red lead degradation were studied in a medieval Portuguese codex, Lorvão Apocalypse (1189), by Raman microscopy (µ‐Raman) and micro‐X‐ray diffraction (µ‐XRD). The range of pigments found for the illuminations is mainly limited to vermilion, orpiment and red lead. Micro‐Fourier transform infrared spectroscopy (µ‐FTIR) determined that the pigments were applied in a proteinaceous binding medium. In the red and orange colours, arsenic (As) was determined, by micro‐energy dispersive ...

Tópico(s): Building materials and conservation

2009 - Wiley | Journal of Raman Spectroscopy

Artigo Revisado por pares

Rui M. Borges dos Santos, Vânia S. F. Muralha, Catarina F. Correia, Rita C. Guedes, Benedito J. Costa Cabral, José A. Martinho Simões,

Time-resolved photoacoustic calorimetry (TR-PAC) and quantum chemistry calculations were used to investigate the energetics of sulfur−hydrogen bonds in thiophenol and four para-substituted thiophenols, 4-XC6H4SH (X = CH3, OCH3, Cl, and CF3). The result obtained for the PhS−H gas-phase bond dissociation enthalpy, derived from the PAC experimental results in solution, is 349.4 ± 4.5 kJ mol-1. This value is significantly higher than recent literature values but agrees with a value suggested some 20 years ...

Tópico(s): Atmospheric chemistry and aerosols

2002 - American Chemical Society | The Journal of Physical Chemistry A

Artigo Revisado por pares

Lucía Burgio, Robin J. H. Clark, Vânia S. F. Muralha, Tim Stanley,

Abstract The non‐figurative illumination in five Islamic religious manuscripts of the 16th to 18th centuries held in the National Art Library (NAL) at the Victoria and Albert Museum were analysed by Raman microscopy (RM) and X‐ray fluorescence (XRF) to determine the pigments used in each case and to establish whether the range of pigments evolved with time. The pigments identified include lazurite, red lead, vermilion, orpiment and a carbon‐based black, which were found on all five manuscripts without ...

Tópico(s): Building materials and conservation

2008 - Wiley | Journal of Raman Spectroscopy

Artigo Acesso aberto Brasil Produção Nacional

Laura Costa MARTINS, Wilson Wildner, Léo Afrâneo Hartmann,

... Olho (basalto), seguido pelos derrames Catalán (andesito), Cordillera, Muralha, UR- 13 e Coxilha (andesitos basálticos). As medidas ...

Tópico(s): Geological formations and processes

2011 - | Pesquisas em Geociências

Artigo Acesso aberto Revisado por pares

Vânia S. F. Muralha, Thilo Rehren, Robin J. H. Clark,

A sample of archaeological iron slag from Northern Zimbabwe was characterised by Raman microscopy (RM) and electron beam analysis (EBA). The phases identified in a slag found at an ironmaking site not only reflect the chemical composition of the slag but can also provide crucial information regarding the reconstruction and interpretation of the metallurgical operations, such as the prevailing redox conditions in a furnace at the time of cooling. Free iron oxides, such as haematite, magnetite and wüstite, ...

Tópico(s): Metallurgical Processes and Thermodynamics

2011 - Wiley | Journal of Raman Spectroscopy

Artigo Acesso aberto Revisado por pares

Susana Coentro, J. Mimoso, Agnaldo Braga Lima, António Santos Silva, Alexandre Pais, Vânia S. F. Muralha,

A multi-analytical approach was used to study the pictorial layers of a set of 17th century historic glazed tiles (azulejos) of Portuguese manufacture. The pictorial layer was studied by μ-EDXRF, μ-Raman, SEM-EDS and OM. Although the established palette comprises few pigments, it was found that the tiles were enhanced by the use of pigment mixtures, which were identified by μ-Raman and μ-EDXRF. As expected, the blue colour derives from cobalt oxide, purple from manganese oxide and emerald-green from ...

Tópico(s): Conservation Techniques and Studies

2011 - Elsevier BV | Journal of the European Ceramic Society

Artigo Revisado por pares

Ana Z. Miller, Amélia Dionísio, M. A. Sequeira Braga, Mariona Hernández‐Mariné, María José Afonso, Vânia S. F. Muralha, Liz Karen Herrera, Jörg Raabe, Ángel Fernández‐Cortés, Soledad Cuezva, Bernardo Hermosín, Sergio Sánchez Moral, Helder I. Chaminé, C. Sáiz-Jiménez,

This paper reports the results of a study of biogenic Mn oxide minerals coating in a subsurface granite environment. This subterranean environment corresponds to galleries of a 16th century spring water tunnel dug throughout the granite bedrock located in Porto city (NW Portugal). Several techniques (XRD, FTIR, Raman, ICP-MS, TEM-EDS, FESEM-EDS, STEM-EDS and STXM-NEXAFS) were used to assess the mechanisms involved in the formation of manganese oxides, specifically birnessite and todorokite. These ...

Tópico(s): Paleontology and Stratigraphy of Fossils

2012 - Elsevier BV | Chemical Geology

Capítulo de livro

Helena Granja, José L. S. Pinho,

... by wave impact. A coastal defense work (a "muralha", or wall) was built. The 1980s saw the ...

Tópico(s): Coastal and Marine Management

2012 - Springer International Publishing | Coastal research library

Artigo Acesso aberto Revisado por pares

S. R. Hencher,

Tópico(s): Landslides and related hazards

2012 - Springer Science+Business Media | Rock Mechanics and Rock Engineering

Artigo Acesso aberto Revisado por pares

Liliana Cangueiro, R. Vilar, A.M. Botelho do Rego, Vânia S. F. Muralha,

We study the surface topographical, structural, and compositional modifications induced in bovine cortical bone by femtosecond laser ablation. The tests are performed in air, with a Yb:KYW chirped-pulse-regenerative amplification laser system (500 fs, 1030 nm) at fluences ranging from 0.55 to 2.24 J/cm2. The ablation process is monitored by acoustic emission measurements. The topography of the laser-treated surfaces is studied by scanning electron microscopy, and their constitution is characterized ...

Tópico(s): Laser-induced spectroscopy and plasma

2012 - SPIE | Journal of Biomedical Optics

Artigo Revisado por pares

Maria do Rosário Marcelino, Vânia S. F. Muralha,

The colour palette from two 20th century and one 21st century Indonesian paintings from the island of Bali was determined by Raman microscopy. There is very little information concerning the artistic techniques from this region of the world and the influences in materials introduced by western artists. The most interesting finding of our study was the increasing substitution of natural pigments by modern synthetic organic pigments. The findings were also compared with samples of representative pigments ...

Tópico(s): Building materials and conservation

2012 - Wiley | Journal of Raman Spectroscopy

Artigo Revisado por pares

Leandro R. Alejano, Javier González, José Muralha,

Tópico(s): Geotechnical Engineering and Analysis

2012 - Springer Science+Business Media | Rock Mechanics and Rock Engineering

Artigo Brasil Produção Nacional Revisado por pares

Juliana Pertille, Léo Afrâneo Hartmann, Sandro Kucera Duarte, Karine da Rosa Arena, Maria Luiza Corrêa da Câmara Rosa, Eduardo Guimarães Barboza,

... two in the Catalán flow, two in the Muralha flow, and one in Cordillera flow. Negative gama- ...

Tópico(s): Geochemistry and Geologic Mapping

2012 - Elsevier BV | Journal of Geochemical Exploration

Artigo Revisado por pares

Vânia S. F. Muralha, Lucía Burgio, Robin J. H. Clark,

The palette of four Persian manuscripts of the 16th and 17th centuries were established by Raman microscopy to include lazurite, red lead, vermilion, orpiment, a carbon-based black, lead white, malachite, haematite, indigo, carmine and pararealgar. The first five pigments were identified on all four manuscripts, as previously found for other Islamic manuscripts of this period. The findings were compared with information available in treatises on Persian painting techniques. Red lead, although identified ...

Tópico(s): Building materials and conservation

2012 - Elsevier BV | Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy

Artigo Revisado por pares

Vânia S. F. Muralha, Catarina Miguel, Maria João Melo,

Santa Maria de Alcobaça Monastery, a Cistercian monastery, was established in 1153, in the year of St. Bernard of Clairvaux's death. From the approximately 160 illuminated manuscripts produced during the late 12th to early 13th centuries, a set of 15 manuscripts was selected to characterize the medieval colour palette of this scriptorium , following an interdisciplinary study on Portuguese medieval illumination. Colour paints were fully characterized by Raman microscopy (RM), alongside μ‐Fourier Transform ...

Tópico(s): Conservation Techniques and Studies

2012 - Wiley | Journal of Raman Spectroscopy

Artigo Revisado por pares

Vânia S. F. Muralha, Rui M. Borges dos Santos, José A. Martinho Simões,

The PhCH2−H bond dissociation enthalpy in solution was determined for the first time as 380.5 ± 5.1 kJ mol-1, from a time-resolved photoacoustic calorimetry study (TR−PAC) in toluene. The derived gas-phase result, 375.5 ± 5.0 kJ mol-1, allows the calculation of the enthalpy of formation of the benzyl radical as ΔfH° (PhCH2•, g) = 208.0 ± 5.0 kJ mol-1, which is in excellent agreement with a value recently published in the literature, obtained from gas-phase experiments, and demonstrates the accuracy of TR− ...

Tópico(s): Chemical Thermodynamics and Molecular Structure

2004 - American Chemical Society | The Journal of Physical Chemistry A

Artigo Revisado por pares

Maria João Melo, Vanessa Otero, Tatiana Vitorino, Rita Araújo, Vânia S. F. Muralha, Ana Cristina dos Santos Lemos, Marcello Picollo,

In this work, microspectrofluorimetry was for the first time applied to the identification of the red organic lakes that are characteristic of the lavish illuminations found in 15 th century books of hours. Microspectrofluorimetry identified those red paints, ranging from opaque pink to dark red glazes, as brazilwood lakes. An unequivocal characterization was achieved by comparison with reference paints produced following recipes from the medieval treatise The Book on How to Make Colours, and was ...

Tópico(s): Biological Stains and Phytochemicals

2014 - SAGE Publishing | Applied Spectroscopy

Artigo Acesso aberto Revisado por pares

Alfredina Veiga, José Mirão, António Candeias, Paulo Simões Rodrigues, Dora Martins Teixeira, Vânia S. F. Muralha, Jorge Ginja Teixeira,

Seventeen Portuguese miniature portraits on copper support from the Évora Museum collection (Portugal) were analyzed in situ and nondestructively by Raman microscopy (RM), SEM‐EDS, and stereomicroscopy. This work constitutes a great breakthrough in the study of miniature paintings from the 17 th and 18 th centuries, since the chemical information known about this unique kind of paintings are still scarce, and in particular, this exclusive collection was never been subjected to any physicochemical ...

Tópico(s): Conservation Techniques and Studies

2014 - Wiley | Journal of Raman Spectroscopy

Artigo Revisado por pares

Bruno Figueiredo, François Cornet, Luís Lamas, José Muralha,

The design of an underground hydroelectric power scheme in northern Portugal has required the characterisation of the local stress field. Nineteen hydraulic tests have been conducted in two, 500 m deep, vertical boreholes. In addition twelve overcoring tests together with twelve flat jack tests have been performed from an existing adit located some 1.7 km away from the location of the hydraulic tests. Results have been integrated into a stress model that takes into account both topography and tectonics ...

Tópico(s): Rock Mechanics and Modeling

2014 - Elsevier BV | International Journal of Rock Mechanics and Mining Sciences

Artigo Revisado por pares

Andreia Ruivo, Vânia S. F. Muralha, Hugo Águas, António Pires de Matos, César A. T. Laia,

Soda-lime glasses doped with Eu3+ were synthesized using a variety of compositions, namely changing the fraction of CaO or Eu2O3. Those glasses were characterized with several techniques, including ellipsometry, UV–vis–NIR absorption spectroscopy, steady-state photoluminescence spectroscopy and time-resolved luminescence. The compositions' effects on optical properties such as refraction indexes, Eu3+ oscillator strengths and luminescence lifetimes were accessed from the analysis of the experimental ...

Tópico(s): Lanthanide and Transition Metal Complexes

2013 - Elsevier BV | Journal of Quantitative Spectroscopy and Radiative Transfer

Artigo Revisado por pares

Irina Crina Anca Sandu, Elsa Murta, Rita Veiga, Vânia S. F. Muralha, M.F.C. Pereira, Štěpánka Kučková, Tito Busani,

The research results presented in this paper are part of a larger study on the materials and techniques used in polychrome altarpieces of gilded woodcarving decoration ("talha dourada") in Portugal. The paper focuses on a narrative Portuguese Altarpiece from Miranda do Douro, considered one of the masterpieces of "talha dourada" among all the retables of the Iberian Peninsula in XVII(th) and XVIII(th) centuries. Although on the Portuguese territory, the altarpiece was made by artists from the Royal ...

Tópico(s): Building materials and conservation

2013 - Wiley | Microscopy Research and Technique