O escorpião e o jaguar: o memorialismo prospectivo d'O Ateneu, de Raul Pompéia

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Cyclotech - contribution to solve the Technetium shortage by using low energy medical cyclotrons

This paper presents work in progress, to develop an efficient and economic way to directly produce Technetium 99metastable (99mTc) using low-energy cyclotrons. Its importance is well established and relates with the increased global trouble in delivering 99mTc to Nuclear Medicine Departments relying on this radioisotope. Since the present delivery strategy has clearly demonstrated its intrinsic limits, our group decided to follow a distinct approach that uses the broad distribution of the low energy cyclotrons and the accessibility of Molybdenum 100 (100Mo) as the Target material. This is indeed an important issue to consider, since the system here presented, named CYCLOTECH, it is not based on the use of Highly Enriched (or even Low Enriched) Uranium 235 (235U), so entirely complying with the actual international trends and directives concerning the use of this potential highly critical material. The production technique is based on the nuclear reaction 100Mo (p,2n) 99mTc whose production yields have already been documented. Until this moment two Patent requests have already been submitted (the first at the INPI, in Portugal, and the second at the USPTO, in the USA); others are being prepared for submission on a near future. The object of the CYCLOTECH system is to present 99mTc to Nuclear Medicine radiopharmacists in a routine, reliable and efficient manner that, remaining always flexible, entirely blends with established protocols. To facilitate workflow and Radiation Protection measures, it has been developed a Target Station that can be installed on most of the existing PET cyclotrons and that will tolerate up to 400 μA of beam by allowing the beam to strike the Target material at an adequately oblique angle. The Target Station permits the remote and automatic loading and discharge of the Targets from a carriage of 10 Target bodies. On other hand, several methods of Target material deposition and Target substrates are presented. The object was to create a cost effective means of depositing and intermediate the target material thickness (25 - 100μm) with a minimum of loss on a substrate that is able to easily transport the heat associated with high beam currents. Finally, the separation techniques presented are a combination of both physical and column chemistry. The object was to extract and deliver 99mTc in the identical form now in use in radiopharmacies worldwide. In addition, the Target material is recovered and can be recycled.

Finnish Kullervo and chinese martial arts stories

Introduction: There are many important Finnish plays but, due to language barrier, Finnish drama is seldom exported, particularly to Hong Kong and China.. Objective: To find out differences in mentality between the Finnish and Chinese peoples by comparing the partially localized Chinese translation of Aleksis Kivi’s tragedy, Kullervo, with genuine Chinese martial arts literature. Methodology: 1. Chapman Chen has translated the Finnish classic, Kullervo, directly from Finnish into Chinese and published it in 2005. 2. In Chen’s Chinese translation, cultural markers are domesticated. On the other hand, values, characterization, plot, and rhythm remain unchanged. 3. According to Gideon Tory, the translator has to strike a golden mean between the norms of the source language and the target language. 4. Lau Tingci lists and explicates the essential components of martial arts drama. 5. According to Ehrnrooth’s “Mentality”, equality is the most important value in Finnish culture. Findings: i. Finland emphasizes independence while China emphasizes bilateral relationships. ii. The Finnish people loves freedom, but Gai Sizung argues that the Chinese people is slavish. iii. Finns are mature while many Chinese are, according to Sun Lung-kee (“The Deep Structure of Chinese Culture”; “The Deep Structure of Chinese Sexuality”), fixated at the oral and anal stages. iv. Finnish society highly values equality while Chinese interpersonal relationships are extremely complicated and hierachical. If Kullervo were a genuine Chinese kungfu story, the plot would be much more convoluted. Conclusion: The differences between Finnish and Chinese mentalities are so significant that partially localized or adapted Chinese translations of Finnish drama may still be able to introduce Finnish culture to the Chinese audience.

Immune responses in Bathymodiolus azoricus upon Vibrio challenges : approaches to characterize mussel survival strategies and physiological adaptations in deep sea extreme environments

Tese de Doutoramento, Ciências do Mar, especialidade de Biologia Marinha, 18 de Dezembro de 2015, Universidade dos Açores.

Assentar a primeira pedra

A presente dissertação tem como objectivo o estudo da primeira fase da institucionalização da investigação geológica em Portugal. São analisados os primeiros organismos responsáveis pelo levantamento geológico do território de Portugal continental, ou seja, a Comissão Geológica e Mineralógica, criada em 1848 no contexto da Academia Real das Ciências de Lisboa e chefiada pelo Engenheiro francês Charles Bonnet (1816-1867), e a Comissão Geológica do Reino, fundada em 1857 como secção dos Serviços Geodésicos, no quadro do Ministério das Obras Públicas Comércio e Indústria, liderada por Carlos Ribeiro (1813-1882) e Pereira da Costa (1809-1888). Sem ser efectuada uma análise exaustiva, são ainda abordadas as reformas implementadas depois da cessação de funções da Comissão Geológica do Reino, por se considerar a sua menção indispensável para a compreensão das consequências dos acontecimentos que conduziram à suspensão desta instituição. Neste estudo deu-se particular relevo aos objectivos, estrutura, organização e enquadramento institucional das Comissões Geológicas, analisando-se as relações estabelecidas com os organismos que as tutelavam e os factores que condicionaram o seu funcionamento, em especial aqueles que levaram à suspensão da Comissão Geológica e Mineralógica, em 1858, e à extinção da Comissão Geológica do Reino, dez anos depois. No que se refere à investigação da estrutura institucional das Comissões Geológicas, foi utilizada uma abordagem proposta por Bruno Latour no quadro dos “science studies”, por parecer a mais adequada à compreensão da estrutura e organização das duas Comissões, e do seu enquadramento na administração do Estado. Estas linhas orientadoras foram ainda complementadas com uma análise das intenções e motivações individuais dos protagonistas envolvidos, por terem sido consideradas determinantes no esclarecimento das razões que conduziram à dissolução da Comissão Geológica do Reino. No que se refere às actividades desenvolvidas por ambas as Comissões, serão analisados os respectivos planos e métodos de trabalho, os resultados da sua acção, as relações internacionais dos seus membros, bem como as suas contribuições científicas tendo em conta os padrões internacionais de prática geológica da época. Neste âmbito, demonstra-se que a Comissão Geológica do Reino produziu mais e melhores resultados, que se constituíram num “ciclo de acumulação”. Para este processo, foi determinante a criação de uma rede de apoio, sobretudo no estrangeiro, que garantiu não só a aquisição de colecções, mapas, periódicos e livros, mas também a circulação de conhecimento e o intercâmbio com instituições congéneres estrangeiras, o que permitiu aos geólogos da CGR ver o seu trabalho reconhecido na comunidade científica internacional.

Work organisation and restructuring in the knowledge society

It is generally agreed that major changes in work are taking place in the organisation of work as corporate structures are transformed in the context of economic globalisation and rapid technological change. But how can these changes be understood? And what are the impacts on social institutions and on workers and their families? The WORKS project brought together 17 research institutes in 13 European countries to investigate these important issues through a comprehensive four year research programme.

Caracterizatión de las partículas ultrafinas en suspensión generadas por la soldadura de planchas de acero

Este estudio se centra en la caracterización de las partículas ultrafinas emitidas durante el proceso de soldadura de acero utilizando mezclas de Ar+CO2, y su objetivo es analizar cuáles son, de entre los parámetros principales del proceso, aquellos que pueden influir en la propia emisión. Se halló que la cantidad de partículas ultrafinas emitidas (medidas en número de partículas y área de la superficie de depósito en la región alveolar) depende claramente de la distancia al frente de soldadura, así como de los principales parámetros de la soldadura, a saber: la intensidad de la corriente y el aporte térmico durante el proceso. La emisión de partículas ultrafinas en suspensión parece aumentar con la intensidad de la corriente, al igual que la tasa de formación de humo. Al comparar las mezclas de gas testadas, se observa una emisión mayor en las mezclas más oxidativas, es decir, mezclas con un mayor contenido de CO2, que proporcionan una mayor estabilidad del arco. Estas mezclas generan concentraciones mayores de partículas ultrafinas (medidas en número de partículas por cm3 de aire) y una mayor área de la superficie de depósito de las partículas en la región alveolar, lo que incrementa la peligrosidad de la exposición del trabajador.

Intrusion of Lamprophyre dyke and related deformation effects in the host rock salt: A case study from the Loulé Diapir, Portugal

A rock salt-lamprophyre dyke contact zone (sub-vertical, NE-SW strike) was investigated for its petrographic, mechanic and physical properties by means of anisotropy of magnetic susceptibility CAMS) and rock magnetic properties, coupled with quantitative microstructural analysis and thermal mathematical modelling. The quantitative microstructural analysis of halite texture and solid inclusions revealed good spatial correlation with AMS and halite fabrics. The fabrics of both lamprophyre and rock salt record the magmatic intrusion, "plastic" flow and regional deformation (characterized by a NW-SE trending steep foliation). AMS and microstructural analysis revealed two deformation fabrics in the rock salt: (1) the deformation fabrics in rock salt on the NW side of the dyke are associated with high temperature and high fluid activity attributed to the dyke emplacement; (2) On the opposite side of the dyke, the emplacement-related fabric is reworked by localized tectonic deformation. The paleomagnetic results suggest significant rotation of the whole dyke, probably during the diapir ascent and/or the regional Tertiary to Quaternary deformation. (C) 2014 Elsevier B.V. All rights reserved.

The 1998 Faial earthquake, Azores: Evidence for a transform fault associated with the Nubia-Eurasia plate boundary?

With very few exceptions, M > 4 tectonic earthquakes in the Azores show normal fault solution and occur away from the islands. Exceptionally, the 1998 shock was pure strike-slip and occurred within the northern edge of the Pico-Faial Ridge. Fault plane solutions show two possible planes of rupture striking ENE-WSW (dextral) and NNW-SSE (sinistral). The former has not been recognised in the Azores, but is parallel to the transform direction related to the relative motion between the Eurasia and Nubia plates. Therefore, the main question we address in the present study is: do transform faults related to the Eurasia/Nubia plate boundary exist in the Azores? Knowing that the main source of strain is related to plate kinematics, we conclude that the sinistral strike-slip NNW-SSE fault plane solution is not consistent with either the fault dip (ca. 65, which is typical of a normal fault) or the ca. ENE-WSW direction of maximum extension; both are consistent with a normal fault, as observed in most major earthquakes on faults striking around NNW-SSE in the Azores. In contrast, the dextral strike-slip ENE-WSW fault plane solution is consistent with the transform direction related to the anticlockwise rotation of Nubia relative to Eurasia. Altogether, tectonic data, measured ground motion, observed destruction, and modelling are consistent with a dextral strike-slip source fault striking ENE-WSW. Furthermore, the bulk clockwise rotation measured by GPS is typical of bookshelf block rotations observed at the termination of such master strike-slip faults. Therefore, we suggest that the 1998 earthquake can be related to the WSW termination of a transform (ENE-WSW fault plane solution) associated with the Nubia-Eurasia diffuse plate boundary. (C) 2014 Elsevier B.V. All rights reserved.

Carbónico ou Carbonífero, eis a questão!

Apresenta-se uma breve pesquisa sobre a origem e introdução na nomenclatura geológica portuguesa dos termos “Carbonífero” e “Carbónico”, para designar o respectivo Sistema/Período geológico. Conclui-se que o termo “Carbónico” terá possivelmente tido origem na designação em língua francesa “Système Carbonique”, resultante de proposta de Eugene Renevier (em 1874) para a criação de um super-sistema que englobasse o Devónico, o Carbonífero e o Pérmico. Foi Wenscelau de Lima que introduziu os termos “Carbonique” e “Carbónico” (em 1888) na literatura geológica publicada em Portugal. Anteriormente, outros geólogos portugueses já tinham utilizado correctamente as designações “Carboniferous” e Carbonífero. Sendo “Carboniferous” (Phillips & Conybeare, 1822) o termo original proposto para designar formalmente a unidade estratigráfica e adoptado pelo código estratigráfico internacional, o aportuguesamento natural será “Carbonífero”, tal como escreveram Pereira da Costa (1860-61), Bernardino Gomes (1865), Carlos Ribeiro e Nery Delgado (1867, 1876). Além disso, a designação “Carbónico” revela-se desajustada face às recomendações do código estratigráfico internacional.

A sátira política na televisão: O caso do "Governo Sombra"

Dissertação apresentada à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Jornalismo.

Assinatura tectono-sedimentar do auge da compressão bética em Portugal: a descontinuidade sedimentar Valesiano terminal-Turoliano

An Upper Miocene important sedimentary break can be accurately recognised in the Portuguese basins and is reflected by a drastic palaeogeographic change in relation to a large-scale tectonic event of probable uppermost Vallesian-Turolian (9,5 Ma; middle Tortonian) age. The characterisation of the sedimentary record of this tectonic event, as well as its relations with interpreted active faults is made for different situations: Douro (NW border), Mondego, Lower-Tagus and Sado Tertiary basins. The sedimentary record, considered upper Tortonian-Messinian ? (uppermost Vallesian-Turolian ?) is interpreted mainly as endorheic alluvial fans (internal drainage), developed along active NNE-SSW indent-linked strike-slip faults and NE-SW reverse faults. At NE Portugal, proximal fluvial systems of an endorheic hydrographic network drained eastwards to the Spanish Duero interior Basin. The main evidences of the betic compression clímax in Portugal mainland are presented; the interpreted active tectonic structures are in accordance with an intense NNW-SSE crustal shortening, but some regional differences are also documented.

Evolução cenozóica da área de Longroiva-Vilariça (NE Portugal)

In the Longroiva-Vilariça area, the identification of Cenozoic lithostratigraphic units, the sedimentology and the characterization of its geometric relations with tectonic structures allowed the interpretation of the palaeogeographic main stages: 1) the greenwhitish Vilariça Arkoses (Middle Eocene to Oligocene ?) represent proximal sediments of a very low gradient drainage towards the eastern Spanish Tertiary Duero Basin; 2)Quintãs Formation (late Miocene ?) are brown-reddish coloured piedmont alluvial deposits, correlative of important vertical displacement (western tectonic block relative uplift) along the NNE-SSW indent-linked strike-slip Bragança-Vilariça-Longroiva fault zone, interpreted as a reactivated deep hercynian fracture, with left-lateral movement; 3) the red Sampaio Formation (Gelasian-early Pleistocene ?)was interpreted as downhill conglomeratic deposits related with important overtrusting along this fault zone (the definition of the present-day narrow graben configuration) and correlative of the atlantic hydrographic incision stage beginning; 4) conglomeratic terraces (middle and late Pleistocene ?); 5) alluvial plains and colluvial deposits (Holocene).

Tectónica da região de Sintra

Photo-interpretation of aerial stereopairs of the Sintra region on the approx. 1/32 000 scale together with field work allowed the production of the present Tectonic Map of the Sintra region. It is now possible to separate structures which resulted from two different tectonic events: one, corresponding to the intrusion of the Late Cretaceous Sintra igneous diapir, and the other the Miocene compressive event, the most important tectonic inversion phase of the Lusitanian Basin. The former are present to the south, southeast and east of the intrusion and within the intrusion itself, affecting the peripheral granites and their contacts with the gabbro-syenite core. These structures comprehend: i) faults and conical fractures striking parallel to the massif boundary, which were intruded by dykes, ii) vertical faults and fractures of two conjugate sets, dextral NNW-SSE and sinistral NNE-SSW. These faults are certainly associated with the E-W striking massif's northwards directed thrust and indicate a N-S oriented horizontal maximum compressive stress. The Miocene compressive event reactivated most of the inherited structures as follows. The NNWSSE faults located on the Sintra southern platform were reactivated as dextral strike slip faults and the E-W thrust along the northern boundary of the massif was also reactivated. This thrust propagated to the east. It also enhanced the asymmetry of the rim-syncline, uplifted the massif and reactivated the NNE-SSW faults as sinistral lateral ramps, which also accommodated vertical throw. The present Tectonic Map of Sintra together with the available geophysical data (MOREIRA, 1984, KULLBERG et al., 1991, SILVA & MIRANDA, 1994) allowed reassessment of the models proposed for the emplacement of the Sintra, Sines and Monchique igneous massifs, which intruded during Late Cretaceous times along the deep dextral NNW-SSE oriented strike slip fault (RIBEIRO et al., 1979; TERRINHA, 1998; TERRINHA & KULLBERG, 1998).

Fernando Pessoa e Maurice Maeterlinck. A voz e o silêncio na fragmentação da obra

Tese apresentada para cumprimento dos requisitos necessários à obtenção do grau de Doutor em Estudos Portugueses