Quantization of Presymplectic Manifolds and Circle Actions

We prove several versions of "quantization commutes with reduction" for circle actions on manifolds that are not symplectic. Instead, these manifolds possess a weaker structure, such as a spin^c structure. Our theorems work whenever the quantization data and the reduction data are compatible; this condition always holds if we start from a presymplectic (in particular, symplectic) manifold.Comment: LaTeX 2e, 28 page

Atiya-Bott theory for orbifolds and Dedkind sums

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1994.Includes bibliographical references (leaf 17).by Ana M.L.G. Canas da Silva.M.S

The Algarve climatophilous vegetation series – Portugal: a base document to the planning, management and nature conservation Les séries de végètation climatophiles de l’Algarve - Portugal: un document de base pour la planification, gestion et conservation de la nature

This work was developed as part of PhD research devoted to the flora and vegetation of the Caldeirão and Monchique mountains that aims to identify the vegetation climatophilous series and use them as an environmental diagnosis of Algarve administrative province phyto-ecological subregions. Biogeographic and bioclimatic considerations are presented, as well as the study area pedological and lithological characterization. For each of the seven climatophilous series the dynamic and catenal behaviours, as well as the main characteristic plants that constitute the successional stages, are given. The corresponding patrimonial value is studied

The archives of the Portuguese government during the residency of the court in Brazil, 1808-1822

The need to understand what happened to the dispersed and previously unsatisfactorily described records of the archives of the central Portuguese administration during 1808-1822, in order to assign a provenance to the records, was the original motivating force behind this thesis. Several aspects of the rule of Portugal and Brazil and of the process of governmental decision-making were little and fragmentarily known and there was no study on the archives of the main offices during the same period. An extensive survey of the archives was undertaken, to locate and identify series and documents of the Secretarias de Estado and other state offices, mainly in Portugal and Brazil. Private papers and British Foreign Office and some French official records were also researched. The first four chapters present aspects of the political, institutional and administrative history of Portugal and Brazil as the context for the archives. First the structure of the central administration before the invasion of Portugal by the Napoleonic armies, including the offices in Brazil, is traced. This is followed by an account of the departure of the Portuguese Court to Rio de Janeiro. The forms of government and administration in Portugal from November 1807 till September 1820 are examined next, beginning with the occupation led by Junot, the Regency and its replacement and their impact on the creation of official records. The following subchapters trace the fighting against the French and the establishment juntas of government and examine the composition and working of the governors of the Kingdom, as well as studying the British military' presence and its influence on the government during the Peninsular War. Finally the governance and the continuity of the British presence after 1814 and till September 1820 are analysed. Chapter four studies the reconstruction and working of the central government and administration in Brazil for the period between March 1808 and September 1820. Chapter five examines how offices in Portugal and Brazil created records and how these circulated and were kept. Types of documents are featured and their usage explained. The arrangement of records, including systems of classification, is analysed. Special attention is paid to the archives of the Secretaria de Estado dos Negócios do Reino and Secretaria de Estado dos Negócios Estrangeiros and also of the Gabinete do Rei and to the records of the Conselho de Estado. The frontiers between private and public records as well as procedures of secrecy within public offices are examined. The sixth chapter traces the Liberal Revolution of 1820 in Portugal, the return of King D. Joâo VI to Lisbon and the independence of Brazil in 1822. The last chapter examines the transfers of records and archives of the Portuguese central administration from 1808 to 1822, especially between Portugal and Brazil, but also with reference to the repercussions of the French occupation and the Peninsular War. Aspects such as the impact of international conflicts on archives, seizure and informational value of records, safekeeping of official records, relationship between political changes, administrative practices and the management of records, evidential value of records and official memory are studied. The main issues analysed concern the custodial history and the current location of the archives of the Secretarias de Estado and other public offices. In addition, successive Brazilian and Portuguese initiatives in the nineteenth and twentieth century to identify, describe and access records produced by these offices before the independence of Brazil in 1822, are critically examined. The conclusions reached in this thesis suggest that the main change in the records was the creation of new series: namely the contas dos governadores do Reino, in consequence of the resettlement of the state apparatus in Rio de Janeiro and of the establishment of the governors of the Kingdom in Lisbon. As these worked as an intermediary body regarding the King and secretaries of state, the ways in which records circulated were often different to those prior to 1808. The bulk of the archives of the Secretarias de Estado which were transported to Rio de Janeiro returned, but not the records produced during 1808-1822 and those relating to Brazil. The location of these records and a list of them are provided for the first time. As a result of the research and findings of this thesis, it is hoped that the arrangement of the series of records of these offices and their connected departments will be simpler and more precise and the enrichment and production of new finding aids will be a natural consequence

Analysis of the Cytisetea scopario-striati scrubs in the south-west-centre of the Iberian Peninsula

The statistical and phytosociological study of 255 relevés taken in the south-west of the Iberian Peninsula and made up of our own samples and previous publications reveals how close these relevés, previously ascribed to different syntaxa, really are. Our re-arrangement of the data leads us to propose for the territory the 15 associations already published and three new ones, namely: Genisto floridae-Adenocarpetum argyrophylli ass. nova hoc loco, Cytisetum bourgaei- eriocarpi nova, Lavandulo viridis-Cytisetum striati ass. nova hoc. loco. We also suggest a name correction, Adenocarpo anisochili-Cytisetum scoparii J.C. Costa et al. 2000 corr., and a status change, namely, Ulici latebracteati- Cytisetum striati (Costa et al. 2000) status novo

Current state of the Prunetalia spinosae communities in the centre and south of the Iberian Peninsula (Spain, Portugal)

This paper re-examines the Rhamno-Prunetea class in the centre and south of the Iberian Peninsula, especially in Andalusia. The paper also deals with the alliances Pruno-Rubion ulmifolii Lonicero-Berberidion hispanicae in the south of the Iberian Peninsula, and Berberidion vulgaris (Berberidenion seroi) in the area of Cuenca. Our analysis of 225 relevés arranged in 22 phytosociological tables helped us to re-organize the available information and subsequently propose three associations and two subassociations: Clematido vitalbae-Rosetum micranthae nova; Berberido hispanicae- Buxetum sempervirentis nova; Roso siculae-Berberidetum hispanicae Mota nova subas. prunetosum ramburii Mota nova; Lonicero arboreae-Rhamnetum cathartici Martínez-Parras and Molero 1983 subas. prunetosum ranburii nova. As a result of the study, a total of 18 syntaxa with the rank of association and four with the rank of subassociation are proposed for the south of the Iberian Peninsula

A new Erica lusitanica Rudolphi heathland association to the Iberian south-west

As result of several field trips following doctoral research in Marianic-Monchiquensean Sector, we describe a new heathland named Lavandulo viridis-Ericetum lusitanici ass nova hoc loco (Genistion micrantho-anglicae, Rivas- Martínez 1979) as a thermomediterranean to lower mesomediterranean, upper dry to humid, schistose association. The analysis of 11 relevés, following Braun-Blanquet methodology shows the floristic identity of this new association as well as the chorological segregation of its area of occurrence. Finally, despite these communities already being relatively well known and although they are poor in species number, such heathlands show floristic singularity and own sinecology, with a large and distinct geographical area of distribution, so we emphasized its integration within Atlantic wet heaths priority habitat (⁄4020 – Annex B-I from Council Directive 92/43/EEC of 21 May 1992)

Portuguese colonial architectural archives at the Arquivo Histórico Ultramarino, mid 19th century - 1975

UIDB/04209/2020 UIDP/04209/2020publishersversionpublishe

Ovarian sertoli-leydig cell tumour with heterologous elements of gastrointestinal type associated with elevated serum alpha-fetoprotein level: an unusual case and literature review

Here we describe the case of a 19-year-old woman with a poorly differentiated ovarian Sertoli-Leydig cell tumor and an elevated serum alphafetoprotein level. The patient presented with diffuse abdominal pain and bloating. Physical examination, ultrasound, and magnetic resonance imaging revealed a right ovarian tumor that was histopathologically diagnosed as a poorly differentiated Sertoli-Leydig cell tumor with heterologous elements. Her alpha-fetoprotein serum level was undetectable after tumor resection. Sertoli-Leydig cell tumors are rare sex cord-stromal tumors that account for 0.5% of all ovarian neoplasms. Sertoli-Leydig cell tumors tend to be unilateral and occur in women under 30 years of age. Although they are the most common virilizing tumor of the ovary, about 60% are endocrineinactive tumors. Elevated serum levels of alpha-fetoprotein are rarely associated with Sertoli-Leydig cell tumors, with only approximately 30 such cases previously reported in the literature. The differential diagnosis should include common alpha-fetoprotein-producing ovarian entities such as germ cell tumors, as well as other non-germ cell tumors that have been rarely reported to produce this tumor marker