Testing strong gravity with gravitational waves and Love numbers

The LIGO observation of GW150914 has inaugurated the gravitational-wave astronomy era and the possibility of testing gravity in extreme regimes. While distorted black holes are the most convincing sources of gravitational waves, similar signals might be produced also by other compact objects. In particular, we discuss what the gravitational-wave ringdown could tell us about the nature of the emitting object, and how measurements of the tidal Love numbers could help us in understanding the internal structure of compact dark objects

A Ilha das Flores : a génese e evolução da costa ocidental da ilha das Flores.

IV Expedição Científica do Departamento de Biologia – Flores 19890 presente trabalho insere-se na expedição cientifica organizada pelo Departamento de Biologia da Universidade dos Açores, à Ilha das Flores e que decorreu de 4 a 11 de Julho de 1989. Durante o curto espaço de tempo que permanecemos, podemos observar, e debruçarmo-nos sobre a geografia física da Ilha e evolução da costa Ocidental, após os desabamentos ocorridos na Ponta da Fajã, a 18/12/87, tendo ficado soterrada uma Ermida e destruído algumas casas. Percorremos caminhos pedonais, desde a Ponta da Fajã até Ponta Delgada, a uma altitude média dos 450m, observando uma vegetação intensa e luxuriante. Apesar de nos encontrarmos em pleno verão foram inúmeras as linhas de água (perenes) que atravessamos, e quase sempre o caminho apresentava-se enlameado, tal a abundância de água nesta vertente

Formylation, dicyanovinylation and tricyanovinylation on 5-alkoxy- and 5-amino-substituted-2,2´-bithiophenes

Several donor-acceptor-substituted bithiophenes were synthesized by functionalization of the corresponding 5-alkoxy- or 5-aminobithiophenes 1 by different methods: Vilsmeier formylation, metalation followed by reaction with DMF, direct tricyanovinylation reaction using TCNE or Knoevenagel condensation starting from the corresponding 5-formyl- derivatives of 1.ICCTI/French Embassy (Technical and Scientific Cooperation Programme). Fundação para a Ciência e Tecnologia - POCTI/QUI/37816/2001, FMRH / BSAB / 134/99

A combination of friedel-crafts and lawesson reactions to 5-substituted-2,2´-bithiophenes

Gama-Keto esters (2) derivatives of thiophene were obtained from hemi-succinic esters and transformed to the corresponding amides (4). Lawesson´s treatment of 2 and 4 gave the corresponding bithiophenes (5) with alkoxy or amino substituents.Fundação para a Ci~Encia e Tecnologia. ICCTI/French Embassy - Technical and Scientific~Cooperation Programme

Universities’ Entrepreneurship Education and Regional Development: a Stakeholders’ Approach

It is assumed that entrepreneurship education encourage the growth of new businesses, exploiting the entrepreneurial spirit within higher education sector. Additionally, entrepreneurship higher education is supposed to play a relevant role in the development of enterprising citizens and in the development regions through an ongoing process of knowledge creation and delivery. In this research we will explore what roles are attributed to entrepreneurship education in the literature with regard to regional development as well as the influence and relationship of the main intervening stakeholders. The aim is to present a conceptual model which integrate the contributions of both strands of literature and, at the same time, highlight the interplay between the several stakeholders involved in HEI’s entrepreneurship education and regional development.Entrepreneurship education, university, regional development, stakeholders

The Black's place in the city image: Afroeuropeans and urban representations in Europe

In this session, we will investigate the visibility/invisibility and the inclusion/exclusion of African populations and people of African descent, within the physical and imaginary borders of Europeans cities with a colonial history. Focusing on both the material and immaterial aspects of the image construction, we will engage in debates concerned with the involvement of African populations and their descendants in current urban representations.info:eu-repo/semantics/publishedVersio

Donor-acceptor substituted oligothiophenes: synthesis, spectroscopic and electrochemical properties

Seven new donor/acceptor oligothiophenes 1-2 were synthesized by Stille coupling in moderate to good yields. Compounds 1-2 were completely characterized by the usual spectroscopic methods. In agreement with the electrochemical and the spectroscopic studies for this compounds the new derivatives prepared, can find application for manufacturing new materials with strong non-linear optical (NLO) properties.Fundação para a Ciência e a Tecnologia (FCT

Controle de gestão em empresas born global: um estudo de caso

This study aims to understand how and to what extent internationalisation processes (IP) affect Management Accounting and Control Systems (MACS), and how the latter contribute to the successful implementation of IP. A conceptual framework is developed from MACS research to highlight how the use and characteristics of accounting information influence the development of IP. Critical incident technique is used as a qualitative approach to understand the IP-MACS relationship. The findings suggest that the existence of MACS adjusted to the firm’s information needs can facilitate IP, providing crucial information, and leading to changes in some accounting tools. This study demonstrates an active (use) and passive (design) role for MACS and provides a first attempt to explore the IP-MACS relationship and its contribution to a successful IP. Este estudio tiene como objetivo comprender cómo y en qué medida el proceso de internacionalización (IP) afecta a los Sistemas de Contabilidad y Control de Gestión (MACS), y cómo contribuye a una implementación exitosa de IP. Se desarrolla un marco conceptual a partir de la investigación de MACS para destacar cómo el uso y las características de la información contable influyen en el desarrollo del IP. La técnica del incidente crítico se utiliza como un enfoque cualitativo para comprender la relación IP-MACS. Los resultados sugieren que la existencia de MACS ajustada a las necesidades de información de la empresa puede facilitar el IP, proporcionando la información crucial e implica cambios en algunas herramientas de contabilidad. Este estudio evidencia un rol activo (uso) y pasivo (diseño) de MACS y proporciona un primer intento de explorar la relación IP-MACS y su contribución a una implementación exitosa de IP.Este estudo tem como objetivo entender como e em que medida o processo de internacionalização (IP) afeta os Sistemas de Controle Contábil e Gerencial (MACS) e como contribui para uma implementação bem-sucedida de IP. Uma estrutura conceitual é desenvolvida a partir da pesquisa MACS para destacar como o uso e as características das informações contábeis influenciam o desenvolvimento da IP. A técnica de incidente crítico usa-se como uma abordagem qualitativa para entender o relacionamento IP-MACS. Os resultados sugerem que a existência de MACS ajustado às necessidades de informações da empresa, pode facilitar a IP fornecendo informações cruciais e implica mudanças em algumas ferramentas contábeis. Este estudo demonstra um papel ativo (passivo) e passivo (design) do MACS e fornece uma primeira tentativa de explorar o relacionamento IP-MACS e sua contribuição para uma implementação bem-sucedida do IP

Synthesis of donor-acceptor substituted oligothiophenes by Stille coupling

A synthesis of donor-acceptor-substituted oligothiophenes by Stille coupling is described. The 5´-estanyl derivatives, readily prepared from 5-alkoxy- and 5-amino-2,2´-bithiophenes 7 were coupled with the appropriate aryl or heteroaryl bromides to give the title compounds.Fundação para a Ciência e Tecnologia. FEDER - POCTI/QUI/37816/2001