Onko sosiologia säilyttänyt innostavuutensa?

Sosiologia-lehden 50-vuotisjuhlaseminaari 28.3.2014.

Oulun yliopiston pieni ja pienempi sosiologia

Sosiologian tulevaisuus.

Maailmankansalaisen sosiologia

Sosiologian tulevaisuus.

"Our aim is to challenge this conventional wisdom". Luokkatutkimuksen keskusteluja Sosiologia-lehdessä ja British Journal of Sociologyssa 1970–2010

Tutkielmani aiheena on sosiologisen luokkatutkimuksen erot ja vaiheet Suomessa ja Iso-Britanniassa neljän vuosikymmenen aikana. Keskeinen tutkimuskysymykseni on, minkälaisia muutoksia suomalaisessa ja brittiläisessä luokkatutkimuskeskustelussa on tapahtunut vuosina 1970–2010, ja miten maiden sisäiset painotukset sosiologisessa luokkatutkimuksessa eroavat toisistaan. Empiirinen tutkimusaineisto koostuu suomalaisen Sosiologian ja brittiläisen British Journal of Sociologyn vuosina 1970–2010 julkaistuista luokkatutkimusartikkeleista. Tarkastelen aineistoani ja sen diskursseja luokasta Foucault'n tiedonarkeologista tutkimusotetta soveltaen. Historian keskeisyys kyseisessä lähestymistavassa sopii tämän tutkimuksen historialliseen tutkimusasetelmaan. Tiedonarkeologinen näkökulma erottuu diskurssianalyysin perinteistä siten, että se ei ole kiinnostunut esimerkiksi kirjoittajien positioinnista erilaisiin valta-asemiin, vaan teksteistä sekä niiden suhteista toisiinsa ja historialliseen tekstien jatkumoon. Haasteelliseksi tutkimukselle osoittautui mm. luokkatutkimuksen rajaaminen foucault'laisittain niin, että saataisiin tutkittavien diskurssien kokonaisuus ja suhteet esiin mahdollisimman hyvin. Diskurssien muutosten ohella olen myös tarkastellut luokkatutkimuksen artikkelimäärien prosentuaalista osuutta kaikista tutkimusartikkeleista vuosittain. Tuloksissa näkyy joitakin eroja maiden välillä, mutta osaksi myös samankaltaisia kehityskulkuja. Muutoksia näkyy esimerkiksi keskustelujen luokkateoreettisissa painotuksissa ja puheessa luokan selitysvoimasta.

Measurement and state preparation via ion trap quantum computing

We investigate in detail the effects of a QND vibrational number measurement made on single ions in a recently proposed measurement scheme for the vibrational state of a register of ions in a linear rf trap [C. D'HELON and G. J. MILBURN, Phys Rev. A 54, 5141 (1996)]. The performance of a measurement shows some interesting patterns which are closely related to searching.

One-pot synthesis of mixed (Z)-1,2-bis(organylchalcogene)-1-alkenes precursors of the novel beta-organylthio vinyllithium intermediates

One-pot hydrochalcogenation of 1-phenylthioacetylenes using organylselenolate and organyltellurolate anions generated by the insertions of selenium and tellurium in n-organyl lithium produced (Z)-1,2-bis(organylchalcogene)-1-alkenes. The chemical reactivity of these mixed 1,2-bis(organylchalcogene)-1-alkenes was studied by Te/Li and Se/Li stereoretentive exchanges carried out with n-butyl lithium, furnishing the new intermediate species (Z)-beta-organylthio vinyllithium anions, which were trapped with aldehydes, to give the (Z)-3-hydroxy vinyl thioethers with total control of the regio- and stereochemistry. (c) 2010 Elsevier Ltd. All rights reserved.

Design and evaluation of multi-band RF energy harvesting circuits and antennas for WSNs

Radio frequency (RF) energy harvesting is an emerging technology that will enable to drive the next generation of wireless sensor networks (WSNs) without the need of using batteries. In this paper, we present RF energy harvesting circuits specifically developed for GSM bands (900/1800) and a wearable dual-band antenna suitable for possible implementation within clothes for body worn applications. Besides, we address the development and experimental characterization of three different prototypes of a five-stage Dickson voltage multiplier (with match impedance circuit) responsible for harvesting the RF energy. Different printed circuit board (PCB) fabrication techniques to produce the prototypes result in different values of conversion efficiency. Therefore, we conclude that if the PCB fabrication is achieved by means of a rigorous control in the photo-positive method and chemical bath procedure applied to the PCB it allows for attaining better values for the conversion efficiency. All three prototypes (1, 2 and 3) can power supply the IRIS sensor node for RF received powers of -4 dBm, -6 dBm and -5 dBm, and conversion efficiencies of 20, 32 and 26%, respectively. © 2014 IEEE.

A resource for signs and Feynman diagrams of the standart model

When performing a full calculation within the standard model (SM) or its extensions, it is crucial that one utilizes a consistent set of signs for the gauge couplings and gauge fields. Unfortunately, the literature is plagued with differing signs and notations. We present all SM Feynman rules, including ghosts, in a convention-independent notation, and we table the conventions in close to 40 books and reviews.

Implicações do contexto político-legal para o lançamento de novas iniciativas sociais em Portugal

O propósito deste artigo é compreender se a existência de um ambiente político-legal favorável pode influenciar o lançamento de novas iniciativas de empreendedorismo social em Portugal. A investigação adota uma metodologia quantitativa. Os dados primários foram recolhidos através de um inquérito por questionário, on-line, enviado aos responsáveis que estiveram na base da constituição das Organizações Não-Governamentais de Cooperação para o Desenvolvimento existentes em Portugal, bem como aos responsáveis pelos projetos, que à data do inquérito, se encontravam cotados na Bolsa de Valores Sociais. No teste das hipóteses de investigação foram utilizadas técnicas de análise descritiva, técnicas de redução de dados (análise fatorial por componentes principais), e o teste t-student. Os resultados revelaram que um ambiente político-legal favorável tem uma importância baixa na decisão de lançar uma nova iniciativa social. Os resultados obtidos encontram suporte para o facto de muitos empreendedores sociais tenderem a localizar as suas atividades em ambientes político-legais desfavoráveis, contribuindo deste modo para a atenuação das assimetrias sociais e económicas entre as regiões do território nacional.

Relatório de estágio

Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para a obtenção do grau de Mestre em Ensino da Matemática do 3º Ciclo do Ensino Básico e do Secundário

Tina evaporação: dados climáticos relativos ao ano de 2007

Os dados foram recolhidos e registados pelo técnico da ESACB João Nunes sob a supervisão da Prof.ª Maria do Carmo Horta Monteiro.

Building a Manifesto for OER sustainability : UK experiences

Evidence of sustainability, or the potential to achieve this, is increasingly a pre-requisite for OER activity, whether imposed by funders, by institutions requiring a 'business case' for OER, or practitioners themselves - academics, educational technologists and librarians, concerned about how to justify engagement with a unfamiliar, and unproven practices, in today's climate of limited resource. However, it is not clear what is meant by 'sustainability' in relation to OER, what will be needed to achieve or demonstrate this, nor who the expectation of sustainability relates to. This paper draws on experiences of UK OER projects to identify aspirations that those involved in delivering OER activity have for OER sustainability ¿ what a 'manifesto' for OER sustainability beyond project funding, based on OER use, might look like.