Search results for "EMU"

Social and satisfied? : Social uses of mobile phone and subjective wellbeing in later life

2022

The current study examined the associations between socio-demographic background and engagement in social uses of mobile phone, and between the engagement in these uses and life satisfaction and health satisfaction in later life through the lens of digital divide and uses and gratifications theories. The data, collected from the retired Internet users (62 and older) residing in seven countries (N = 5713), were analyzed using logistic and linear regression models. The results show that education and age predicted the engagement in social uses in the most consistent way. A number of social uses positively related to both life and health satisfaction. Of the particular uses, e-mailing and inst…

Experiences, reputation, references and decision-making in an online hospitality network

2014

The aim of this thesis was to analyse behavioural patterns that occur after a negative experience during a hospitality exchange. The focus of this study is the largest online hospitality network to date, the CouchSurfing Project. CouchSurfing enables travellers to connect and to offer each other help in form of a free hospitality exchange. Furthermore, CouchSurfing presents a platform for cultural exchange and the possibility for members to connect in this online-offline community. As part of a qualitative study, a voluntary online questionnaire has been distributed and answered by 35 CouchSurfing members. The results give insight of how they deal with a negative experience after offline in…

Netti-televisio Vision synty ja käyttökokemukset

2003

Knowledge building and roles in Citizen Science : findings from the CS Track survey 2021

2021

Demo - A Cell-level Traffic Generator for LoRa Networks

2017

In this demo we present and validate a LoRa cell traffic generator, able to emulate the behavior of thousands of low-rate sensor nodes deployed in the same cell, by using a single Software Defined Radio (SDR) platform. Differently from traditional generators, whose goal is creating packet flows which emulate specific applications and protocols, our focus is generating a combined radio signal, as seen by a gateway, given by the super-position of the signals transmitted by multiple sensors simultaneously active on the same channel. We argue that such a generator can be of interest for testing different network planning solutions for LoRa networks.

Fast and direct analysis of oxidation levels of oil-in-water emulsions using ATR-FTIR.

2019

International audience; Oxidation of omega-3 fatty acids is a major limitation on its enrichment in food and beverages. An efficient and simple method to monitor lipid oxidation in complex systems is essential to limit lipid oxidation during formulation and processing. Fish oil-in-water emulsions (20% v/v) were exposed to iron or free radical initiated oxidation. Conjugated dienes (CDs) were rapidly measured using a previously developed fat extraction method. Fourier transform infrared (FTIR) spectroscopy has been used to directly record chemical changes occurring during oxidation. Variations were noticed in different spectral regions despite the presence of broad water bands near 3400 and …

Body size increase in insular rodent populations: A role for predators?

2002

Insular mammalian populations living in areas of small size are often characterized by a drastic change in body mass compared to related continental populations or species. Generally, small mammals (less than 100 g) evolve into giant forms while large mammals (up to 100 g) evolve into dwarf forms. These changes, coupled with changes in other life, behavioural, physiological or demographic traits are referred to generally as the insular syndrome. We tested in this study the relative contribution of three factors - area of island, numbers of competitor species and number of predator species - to changes in body size of the woodmouse (Apodemus sylvaticus) in the Western Mediterranean Sea. Our …

Microemulsions: Phase transitions and their dynamics

2007

By differential scanning microcalorimetry we investigate temperature-induced phase transitions and their dynamics in mixtures of water, oil and a non-ionic surfactant. Special emphasis is on an investigation of the transition from a lamellar to a microemulsion phase and on the emulsification failure. The first-order phase transition from a lamellar to a microemulsion phase leads to heat changes up to 1k BT per surfactant molecule. These large values for the latent heat are quantitatively described by an interfacial model which takes into account the temperature dependence of the spontaneous curvature.

Taidelaitos kunnallisbyrokratiassa : Joensuun taidemuseo 1962-1992

2003

Helsingin Jugendsali tilakokemuksena

2010

Tutkielman tavoitteena oli tarkastella Helsingissä sijaitsevan Jugendsalin tilallisia kokemuksia sen käyttäjien näkökulmasta. Tutkimuksessa tarkasteltiin, millaiseksi ihmiset kokivat Jugendsalin tilana, mitä siitä havainnoitiin ja mikä teki siitä merkityksellisen. Edellisten lisäksi haluttiin selvittää, miten ihmiset havainnoivat ympäristöään ja mitä tilat ihmisille merkitsevät. Kokemuksellisuuden tutkiminen rajattiin Jugendsalin Helsinki-tiedotuksen aikaan (vuodet 1984–2008) ja Café Jugendin aikaan (2008-). Tutkimuksen painotus oli Helsinki-tiedotuksen ajassa. Kuitenkin tutkimuksessa haluttiin tarkastella sitä, kuinka käyttötarkoituksen muutos vaikutti tilakokemukseen. Sen vuoksi myös Café…