Positron measurements in Mg-doped GaN and development of digital Doppler broadening spectroscopy

In this work parameters of Mg-doped GaN samples were studied using positron annihilation spectroscopy and analyzed. It is shown that gallium vacancies exist in an unintentionally doped sample. Next, the sample with higher concentration of Mg and low growth temperature contains vacancy clusters. In case of low concentration of Mg the growth temperature does not affect the formation of defects. Analog electronics can be replaced by a modern digital device. While promising a high quantity of benefits, the performance of these digitizers requires thorough adjustment. A 14-bit two channel digitizer has been tested in order to achieve better performance than the one of a traditional analog setup, and the adjustment process is described. It has been shown that the digital device is unable to achieve better energy resolution, but it is quite close to the corresponding attribute of the available analog system, which had been used for measurements in Mg-doped GaN.

Mobile learning and video experience in delivering digital content

In recent years, the worldwide distribution of smartphone devices has been growing rapidly. Mobile technologies are evolving fast, a situation which provides new possibilities for mobile learning applications. Along with new delivery methods, this development enables new concepts for learning. This study focuses on the effectiveness and experience of a mobile learning video promoting the key features of a specific device. Through relevant learning theories, mobile technologies and empirical findings, the thesis presents the key elements for a mobile learning video that are essential for effective learning. This study also explores how previous experience with mobile services and knowledge of a mobile handset relate to final learning results. Moreover, this study discusses the optimal delivery mechanisms for a mobile video. The target group for the study consists of twenty employees of a Sanoma Company. The main findings show that the individual experience of learning and the actual learning results may differ and that the design for certain video elements, such as sound and the presentation of technical features, can have an impact on the experience and effectiveness of a mobile learning video. Moreover, a video delivery method based on cloud technologies and HTML5 is suggested to be used in parallel with standalone applications.

Focus on Users – The National Digital Library of Finland

Heli Kautosen esitys Digital Humanities 2012 -konferenssissa Hampurissa 20.7.2012

The National Digital Library of Finland – Public Interface FINNA

Aki Lassilan esitys IFLA-konferenssissa Helsingissä 14.8.2012.

Digital Cultural Heritage at the National Library of Finland

Short presentation about how digital cultural heritage is created and collected by the National Library of Finland

Post-industrial 2.0 – Social Web as the second coming of the post-industrial society

This study presents a review of theories of the so-called post-industrial society, and proposes that the concept of post-industrial society can be used to understand the recent developments of the World Wide Web, often described as Web 2.0 or social Web. The study combines theories ranging from post-war management science and cultural studies to software development, and tries to build a holistic view of the development of the post-industrial society, and especially the Internet. The discourse on the emergence of a post-industrial society after the World Wars has addressed the ways in which the growing importance of information, and innovations in digital communications technology, are changing our society. It is furthermore deeply connected with the discourse on the postmodern society, which emphasizes cultural fragmentation, intertextuality, and pluralism. The Internet age is characterized by increasing masses of information that are managed through various technologies. While 1990s Internet technologies often used the network as a traditional broadcasting channel with added interactivity, Web 2.0 technologies are specifically designed to utilize the network model by facilitating communication between various services and devices, and analyzing the relationships between users and objects in order to produce intelligent insight. The wide adoption of the Internet, and recently of Internet-enabled mobile devices, is furthermore continuously producing new ways of communicating, consuming, and producing. Applications of the social Web, such as social media or social networking services, are permanently changing our traditional social, cultural, and economic practices. The study first presents an overview of the post-industrial society, the Internet, and the concept of Web 2.0. Then the concept of social Web is described with an analysis of the term social media, the brief histories of the interactive Web and social networking services, and a description of the concept ―long tail‖, used to represent the masses of information available in the Web that do not receive mainstream attention. Finally, methods for retrieving and filtering information, modeling social and cultural relationships, and communicating with customers, are presented.

Esclarecer o idoso sobre o exame digital retal diminui o desconforto na sua primeira realização?

OBJETIVO: Verificar o grau de desconforto referido por homens idosos que realizam pela primeira vez o exame digital retal (EDR) na prevenção do câncer de próstata e o efeito de esclarecimentos prévios sobre essa queixa. MÉTODOS: Estudo prospectivo e aleatório em 120 homens, com idade de 60 a 80 anos, distribuídos em dois grupos: grupo A (consulta médica rotineira) e grupo B (consulta médica com intervenção educativa). No grupo B, os instrumentos de informação foram: palestra informal com esclarecimentos sobre EDR e câncer de próstata, visualização de maquete da pelve masculina, mostruário com as relações anatômicas prostáticas, simulador do EDR e DVD com animação tridimensional dos órgãos pélvicos. O grau de desconforto foi medido através da escala visual de dor. Utilizou-se o teste do qui-quadrado, com significância de 0,05. RESULTADOS: Houve diferença significativa entre o grau de desconforto referido no EDR entre os dois grupos, 81% do grupo B referiram-no como leve e 80% do grupo A, como moderado ou intenso, com p significativo de 0,01. Os sinais e sintomas foram a principal razão da consulta em 35% dos pacientes, 78% foram à consulta sozinhos e 81% comentaram o exame com a parceira. Sem diferença estatística, 94,2% no grupo A e 97,8% no grupo B repetiriam o exame no ano seguinte e 91,6% no grupo A e 96,6% no grupo B relataram que o exame não foi pior do que imaginavam. Todos recomendariam o EDR para parentes ou amigos. CONCLUSÃO: Os pacientes que fizeram o EDR pela primeira vez após consulta urológica com esclarecimentos educativos prévios sobre o tema referiram significativamente menor desconforto.

DIGITAL BUSINESS-TO-BUSINESS MARKETING COMMUNICATIONS IN EMERGING MARKETS – Developing Business Marketing in Russia

The core idea of this Master's Thesis was that five key characteristics – market heterogeneity, sociopolitical governance, chronic shortage of resources, unbranded competition, and inadequate infrastructure – of emerging markets are radically different from the traditional industrialized capitalist society and they will require us to rethink the core assumptions of business-to-business marketing, such as business relationships, marketing communication elements, and digitalization. In this research, Russia is considered to be an emerging market that reflects the aforementioned theoretical characteristics. The research was a qualitative case study and furthermore a collective case study. In the beginning three digital marketing professionals were interviewed to better understand digital B2B marketing. The actual research data was collected through seven structured theme interviews with representatives of the case companies operating in Russia. The selection of case companies included three business consulting companies and four industrial companies. The aim of this qualitative study was to understand and clarify how business marketing exploits digital marketing methods as a part of the chosen business marketing strategy under emerging markets’ special conditions. This objective was divided in three research questions: 1) How the chosen marketing strategy reflects in the business marketing process? 2) How digital marketing communication contributes to business marketing? 3) How are the emerging markets’ characteristics reflected in the business marketing process? The main research findings indicate that digital business-to-business marketing communications can be useful and effective. Moreover, business DMC can be defined and structured in a reasonable way. The company's prevalent marketing paradigm and the chosen marketing strategy reflect in the business marketing process, and in utilizing digital marketing communications. The assumption that emerging markets set an environment with special characteristics for business marketing was supported by the study. However, the business environmental aspects were not considerably disturbing digital B2B marketing, but making it even more reasonable to harness in Russia.

Policy guidelines, the National Digital Library and Europeana

Minna Karvosen esitys Europeana työpajassa 20.11.2012 Helsingissä.

Secure Bluetooth Audio Transmission System

The growing spread of small but powerful mobile devices (such as PDAs, mobile phone, Internet Tablet, etc.) opens up new scenarios in which users can interact with such devices in many environments in order to access the information at different locations. In this thesis, a ubiquitous computing based system called Secure Bluetooth Audio Transmission System is introduced. This system is situated in a large public place (like airport, festival venues, etc.), where voice messages are conveyed from the system to users' Bluetooth headsets in order to inform users the latest flight schedule and other public information. The reliability of the message is secured by adopting an authorization strategy and ECDSA. In order to assess and evaluate the risks and potential weaknesses of the system, an easy-to-use prototype implementation was written and tested. Other possible uses and further research were also considered.

The National Digital Library Finna Among Digital Research Infrastructures in Finland

Heli Kautosen esitys Epics, Digital Cultural Heritage and Vernacular Languages. Corpora and Databases in Oral Tradition Research -seminaarissa Helsingissä 2.3.2013.