Avaliação energética de um sistema fotovoltaico para bombagem

Dissertação de Mestrado, Energias Renováveis e Gestão de Energia, Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2015

Decoração vegetalista nos mosaicos portugueses

A decoracao vegetalista nos mosaicos romanos revela-se, tambem no território português, como profundamente significante no dinamismo dos opera tessellata, seja nos contextos urbanos, seja nos contextos rurais. A vivencia dos quotidianos em estreita interacção com a natureza, a percepção do inexorável correr dos dias na sucessão das estacoes do ano (tempus fugit) e a constatar das transformações cósmicas, consigo arrastando a de vir humano, levam tradicionalmente, desde as tempos gregos e helenísticos, a produção de iconografias em que se destacam as referencias ao mundo vegetal, associadas a complexificacão de mentalidades num fundo mítico-ideológico, no qual imperam crenças dionisíacas e se geram comportamentos que encontram a sua origem nas antiquíssimas comemorações do solstício de Inverno. Estas não são mais do que o esconjuro da ameaça ou do receio de uma não renovação cósmica face à esperança de um contínuo rejuvenescimento do Homem no seio da Natureza e para além dela. A representação das razes, do s troncos, das folhas, das flores e dos frutos nos mosaicos romanos e, por isso, importante também pela transmissão de formas e de conteúdos aos tempos paleocristãos e medievais.

Jacobus de Voragine. Ogerius Locediensis. Guillelmus de Malliaco.

F. 13-142v [Jacobus de Voragine, Sermones excerpti e collectione sermonum festivalium per anni circulum]; cf. Schneyer, Repert. lat. Serm., III, 246-268. [In Nativitate]; cf. ibid., n° 319, incomplet du début, et n° 324 (13-18v); — « In circumcissione [sic] Domini »; cf. ibid., n° 346 et 347 (18v-24); — « In Epiphania Domini »; cf. ibid., n° 351 et 354 (24-28v); — « In Purificatione sancte Marie »; cf. ibid., n° 374 et 376 (28v-34); — « In Adnunciatione beate Marie.; cf. ibid., n° 396 (34-36v) et n° 397, incomplet du début par lacune matérielle (38-39); — « De s. Johanne Baptista »; cf. ibid., n° 465 et 467 (39-44); — « De apostolis Petro et Paulo »; cf. ibid., n° 471 et 473 (44-49v); — « De b. Paulo apostolo »; cf. ibid., n° 474 (49v-53); — « De s. Maria Magdalena »; cf. ibid., n° 479 et 480 (53-59v); — « De b. Laurentio martyre »; cf. ibid., n° 497 et 499 (59v-65); — « In Assumpcione b. Marie »; cf. ibid., n° 504 et 509 (65-72v); — « De s. Augustino »; cf. ibid., n° 521 et 523 (72v-79v); — « In Nativitate b. Marie »; cf. ibid., n° 528 et 530, incomplet de la fin, en réclame « virginis » (79v-84v); — [De s. Michaele]; cf. ibid., n° 544, incomplet du début par lacune matérielle, et n° 550 (86-90v); — « In festo omnium sanctorum »; cf. ibid., n° 568 et 570 (90v-96v); — « De mortuis »; cf. ibid., n° 574-577 (96v-107v); — « De s. Martino »; cf. ibid., n° 582, incomplet de la fin (107v-109v) et n° 583 incomplet du début par lacune matérielle (111-113v); — « De b. Katerina »; cf. ibid., n° 591 et 592 (113v-119v); — « De dedicacione ecclesie »; cf. ibid., n° 594 et 595 (119v-127); — « De consecracione altaris »; cf. ibid., n° 597 (127-130); — « De vestibus sacris sacerdotis quid significant »; cf. ibid., n° 598 (130-134); — « De exposicione misse »; cf. ibid., n° 599 et 600 (134-142v). F. 142v-146 « Sermo ad religiosos. Quia existis indesertum... (Mt. XI, 7). Istam questionem quam fecit Dominus... ». F. 146-150v [Guillelmus de Malliaco, Sermo excerptus e collectione sermonum de Tempore dicta « Abjiciamus »]; cf. Schneyer, op. cit., II, 483-489. « De visitacione et officio visitacionis »; cf. ibid., n° 72. F. 150v-158 Sermones. « In concilio magnatum. Quoniam ecce reges terre... (Ps. XLVII, 5). Hic duo tanguntur scilicet magnorum conveniencia temporalis... » (150v-151v); — « In synodo clericorum. Pro patribus tui nati sunt tibi filii... (Ps. XLIV, 17). Adtendant ecclesiarum prelati tria... » (151v-155); — « Sermo ad religiosos. Deus qui habit are facit unanimes in domo secundum hebraicam veritatem et secundum Johannem. Deus qui habitare racit monachos... » (155-158). F. 158-160v [Jacobus de Voragine, Sermo de s. Mathia] « Sermo in electione », incomplet par lacune matérielle, en réclame « vir perfectus »; cr. Schneyer, loc. cit., n° 382, moins développé. F. 161-169v [Ogerius Locediensis] « Planctus b. Bernardi de dolore Marie virginis propter filium » (en titre-courant). « Quis dabit capiti meo aquam et oculis meis imbrem sicut presens dies demostrat [sic] cunctis aperte. Inclita regina celica rosa flos sine spina// ...memento mei »; extrait du De Laudibus b. Virginis, rédaction B; cf. H. Barré, dans Revue d'ascétique et de mystique, XXVIII (1952), 243-266, mss. et éditions. Le texte est incomplet par lacune matérielle, un f. ayant été coupé entre les fr. 163 et 164. F. 169v-184 Sermones. « Sermo in Assumptione b. Marie. Surrexit rex in occursum... (III Reg. II, 19). Quam multiplici figura Salomon ille... », incomplet de la fin (169v-171v); — sermon incomplet du début par lacune matérielle (174); — « Sermo in capite jejunii. Convertimini ad Dominum Deum vestrum... (Joel II, 13). Agreditur hodie Spiritus sanctus multitudinem peccatorum... » (174-175v); — « Sermo in Paraceve. Cum egressus fuero de urbe... (Ex. lX, 29). Verba ista sunt Moysi qui gerit typum Salvatoris... » (175v-180v); — « Alius sermo in Paraceve. O vos omnes qui transitis per viam... (Thren. I, 12). Consideranti michi piam et superpiam materiam... » (180v-183v); — « Domine, bonum est nos hic esse... (Lc. lX, 33). Ubi? Petro. Isti enim tria tanguntur in mentis sublimitate... » (183v-184). F. 184v Table des ff. 1 à 193. — Addition fin XIVe s. F. 185-193 Sermones. « Sermo in Nativitate. Sicut lux aurore oriente sole... (II Reg. XXIII, 4, 2). Verba sunt David cui Dominus... » (185-186); — « Sermo in Paraceve. Deducant oculi nostri lacrimas... (Jer. lX, 18). ...ut gloriosa Virgo septies flevisse.. » (186-191); — « Quod Corpus Christi vere sit in altari. Cenantibus autem eis, accepit Jesus panem... Item Joh. (VI, 51): Ego sum panis vivus... Credebant enim quod manducaretur sicut alie carnes. ..) (191-193). F. 193v Table des ff. 194 à 285. — Addition fin XIVe s. La suite de la table a été coupée. F. 194-335v Sermones de Tempore, excerpti praesertim e collectione « Abjiciamus » Guillelmi de Malliaco et e collectionibus De Tempore et De Sanctis et festis Jacobi de Voragine; cf. Schneyer, op. cit., II, 483-489 et III, 221-233 et 246-268. F. 194-208. [Guillelmus de Malliaco] « Dom. 1a in Adventu Domini »; cf. Schneyer, II, loc. cit., n° 1 et 2 (194-203); Dom. 2a »; cf. ibid., n° 3 (203-208). F. 208-213 [Jacobus de Voragine] « Dom. 2a in Adventu Domini »; cf. Schneyer, III, loc. cit., n° 5. F. 213-218 [Guillelmus de Malliaco] « Dom. 3a »; cf. Schneyer, II, n° 6. F. 218-222 [Jacobus de Voragine] « Dom. 3a »; cf. Schneyer, III, n° 8. F. 222v-228 [Guillelmus de Malliaco] « Dom. 4a »; cf. Schneyer, II, n° 7. F. 228-232 [Jacobus de Voragine] « Dom. eadem »; cf. Schneyer, III, n° 11. F. 232-236. « Feria 4a in capite jejunii. Cum jejunatis nolite fieri... (Mt. VI, 16). Hodie incipit tempus penitentie... ». F. 236-240 « De eadem feria. Convertimini ad me in toto corde... (Joel II, 12). Homo per peccatum tria mala incurrit... ». F. 240-246 [Guillelmus de Malliaco] « Dom. 1a in quadragesima »; cf. Schneyer, II, n° 25. F. 246-319 [Jacobus de Voragine] « Dom. eadem »; cf. Schneyer, 111, n° 41 (246-251v); — « Dom. 2a in quadragesima »; cf. ibid. n° 44 et 45 (251v-259v); — « Dom. 3a in quadragesima »; cf. ibid., n° 47 et 48 (259v-270); — « Dom. 4a in quadragesima »; cf. ibid., n° 50 et 51 (270-279v); — « Dom. de passione »; cf. ibid., n° 53 et 54 (279v-290); — « Dom. de Ramis »; cf. ibid., n° 56 et 57 (290-302); — « In Cena Domini »; cf. ibid., n° 401 et 402 (302-307v); — « In Parasceve »; cf. ibid., n° 405 et 411 (307v-312); — « In die Pasce »; cf. ibid., n° 414 et 415 (312-316v); — « Feria 2a post Pasca »; cf. ibid., n° 419 (316v-319). F. 319-325v « De eadem feria. Duo ex discipulis Jhesu ibant... (Lc. XXIV, 13). Introduxit nos Dominus in terram fluentem lac... » F. 326-334 [Jacobus de Voragine] « In adscensione Domini »; cf. ibid., n° 446 et 445 (326-329v); — [In Pentecoste]; cf. ibid., n° 452 et 457 (329v-334). F. 334-335v « De eodem. Ad Deum [sic pro: eum] veniemus et mansionem... (Job. XIV, 23). Super illo verbo dicit b. Eusebius... ». F. 335v-337v Extraits patristiques. « Incipiunt quedam problemata. Lingua mea calamus ego sum. » Sont cités s. Grégoire, s. Paul, s. Augustin, s. Isidore, Boèce, Bède, Josèphe, s. Hilaire, etc.

Introducci??n a la historia de la educaci??n social en Espa??a

Resumen tomado de la revista

Una nueva realidad europea: la enseñanza a distancia.

Con motivo de la entrada en vigor de la libre circulación de trabajadores entre los diversos países de Europa y para afrontar el reto tecnológico mundial, se han desarrollado una serie de proyectos por parte de los países miembros de la Comunidad europea que potencian la enseñanza a distancia. Estos ocho proyectos son: Programa ERASMUS, Programa LINGUA, Programa COMETT, Programa TEMPUS, Programa DELTA, Programa EUROTECHNET, Programa JANUS y el Programa de nuevas tecnologías aplicadas a la educación del Ministerio de Educación y Ciencia.

A vector approach to the assessment of undergraduate engineering courses

In any undergraduate engineering programme there is a need to assess the balance and flavour of the various educational strands. In order for a quality assurance of these programmes to be met there is a need to evaluate the course load, academic content and the assessment marks of each course in the undergraduate programme. The existing ranges of QA methods for these programmes are focused on one or two of these issues and do not provide a comprehensive assessment procedure. Following a review of the existing QA methods, this paper will define a three-dimensional approach to the assessment of the educational aspects of an undergraduate course. Various features of this method will be described and potential benefits explained.

Evolution of the landscape of Madeira Island: long-term vegetation dynamics

The aim of this thesis was to evaluate historical change of the landscape of Madeira Island and to assess spatial and temporal vegetation dynamics. In current research diverse “retrospective techniques”, such as landscape repeat photography, dendrochronology, and research of historical records were used. These, combined with vegetation relevés, aimed to gather information about landscape change, disturbance history, and vegetation successional patterns. It was found that landscape change, throughout 125 years, was higher in the last five decades manly driven by farming abandonment, building growth and exotic vegetation coverage increase. Pristine vegetation was greatly destroyed since early settlement and by the end of the nineteenth century native vegetation was highly devastated due to recurrent antropogenic disturbances. These actions also helped to block plant succession and to modify floristical assemblages, affecting as well as species richness. In places with less hemeroby, although significant growth of vegetation of lower seral stages was detected, the vegetation of most mature stages headed towards unbalance between recovery and loss, being also very vulnerable to exotic species encroachment. Recovery by native vegetation also occurred in areas formerly occupied by exotic plants and agriculture but it was almost negligible. Vegetation recovery followed the successional model currently proposed, attesting the model itself. Yet, succession was slower than espected, due to lack of favourable conditions and to recurrent disturbances. Probable tempus of each seral stage was obtained by growth rates of woody taxa estimated through dendrochronology. The exotic trees which were the dominant trees in the past (Castanea sativa and Pinus pinaster) almost vanished. Eucalyptus globulus, the current main tree of the exotic forest is being replaced by other cover types as Acacia mearnsii. The latter, along with Arundo donax, Cytisus scoparius and Pittosporum undulatum are currently the exotic species with higher invasive behaviour. However, many other exotic species have also proved to be highly pervasive and came together with the ones referred above to prevent native vegetation regeneration, to diminish biological diversity, and to block early successional phases delaying native forest recovery.

Brazilian Students and Working Capital: An Analysis of Their Decisions When Using Virtual Market Business Games

This study aims to demonstrate that data from business games can be an important resource for improving efficiency and effectiveness of learning. The proposal presented here was developed from preliminary studies of data from Virtual Market games that pointed the possibility of identifying gaps in learning by analyzing the decisions of students. This proposal helps students to refine their learning processes and equips tutors with strategies for teaching and student assessment. The proposal also complements the group discussion and/or debriefing, which are widely used to enhance learning mediated by games. However, from a management perspective the model has the potential to be erroneous and miss opportunities, which cannot be detected because of the dependence on the characteristics of the individual, such as ability to communicate and work together. To illustrate the proposed technique, data sets from two business games were analyzed with the focus on managing working capital and it was found that students had difficulties managing this task. Similar trends were observed in all categories of students in the study-undergraduate, postgraduate and specialization. This discovery led us to the analysis of data for decisions made in the performance of the games, and it was determined that indicators could be developed that were capable of indentifying inconsistencies in the decisions. It was decided to apply some basic concepts of the finance management, such as management of the operational and non-operational expenditures, as well as production management concepts, such as the use of the production capacity. By analyzing the data from the Virtual Market games using the indicator concept, it was possible to detect the lack of domain knowledge of the students. Therefore, these indicators can be used to analyze the decisions of the players and guide them during the game, increasing their effectiveness and efficiency. As these indicators were developed from specific content, they can also be used to develop teaching materials to support learning. Viewed in this light, the proposal adds new possibilities for using business games in learning. In addition to the intrinsic learning that is achieved through playing the games, they also assist in driving the learning process. This study considers the applications and the methodology used.

Tunneling time through a barrier using the local value of a time operator

A time for a quantum particle to traverse a barrier is obtained for stationary states by setting the local value of a time operator equal to a constant. This time operator, called the tempus operator because it is distinct from the time of evolution, is defined as the operator canonically conjugate to the energy operator. The local value of the tempus operator gives a complex time for a particle to traverse a barrier. The method is applied to a particle with a semiclassical wave function, which gives, in the classical limit, the correct classical traversal time. It is also applied to a quantum particle tunneling through a rectangular barrier. The resulting complex tunneling time is compared with complex tunneling times from other methods.