Search results for "Lähteet"

Sixth graders’ evaluation strategies when reading Internet search results : an eye-tracking study

2018

Eye-tracking technology was used to examine Internet search result evaluation strategies adopted by sixth-grade students (N = 36) during ten experimental information search tasks. The relevancy of the search result’s title, URL, and snippet components was manipulated and selection of search results as well as looking into probabilities on the search result components was analysed. The results revealed that during first-pass inspection, students read the search engine page by first looking at the title of a search result. If the title was relevant, the probability of looking at the snippet of the search result increased. During second-pass inspection, there was a high probability of students…

Thermal performance and microclimate test methods for flat-plate solar thermal collectors

2012

In this Master’s thesis testing methods, experimental setups and data evaluation procedures for flat-plate solar thermal collectors are presented. An official quasi-dynamic test method according to the EU standard EN 12975 for evaluating the collector’s thermal performance is described, and its applicability to an existing experimental setup is evaluated. The general practicality of this setup is also reviewed. Furthermore, a second experimental setup is designed to monitor the inside conditions, or microclimate, of a solar thermal collector, in order to assess the frequency of condensation occurrence inside the collector. This work’s results include that the existing thermal performance se…

Investigating elementary school students’ text-based argumentation with multiple online information resources

2020

In this study, we explored how elementary school students used multiple information resources in responding to a text-based argumentation task asking them to research a set of online texts in order to state and justify their stance on a controversial health-related issue. Results showed that most students took a stance that was consistent with the majority of the information resources that they read, that they mainly drew on more reliable resources in their written task products, and that they justified their stance by providing one or more supporting reasons. Students relied much more on copying and paraphrasing content from the online resources than on integrating information within and a…

Reconsidering authorship in the Ciceronian corpus through computational authorship attribution

2019

In recent years, methods of computational authorship attribution have offered promising results for the reattribution of classical texts. We use and further develop these methods to verify the authorship of several texts belonging or related to the Ciceronian corpus: Rhetorica ad C. Herennium, De inventione, De optimo genere oratorum, and Commentariolum petitionis. We use two classifiers, Support Vector Machine and Convolutional Neural Network, of which the latter is more accurate except in regard to certain aspects of vocabulary. The most important of our results is that Commentariolum petitionis seems to be authored by Marcus Cicero, not by his brother Quintus. Negli ultimi anni metodi co…

Lukiolaiset internetlähteiden luotettavuuden arvioijina

2017

Internetin käytön yleistyminen ja saatavilla olevan informaation jatkuva lisääntyminen on tehnyt tiedon luotettavuuden arvioinnista entistä vaikeampaa. Internetlähteiden käyttö lukio-opinnoissa on myös lisääntynyt. Tämän tutkimuksen tarkoituksena oli selvittää, kuinka hyvin lukiolaiset osaavat arvioida internetlähteiden luotettavuutta. Tutkimus on osa ARONI-tutkimushanketta ja siihen osallistui 186 Hämeenlinnan ja Riihimäen alueiden lukiolaista. Lukiolaiset tekivät internetlukutaitoja mittaavan tehtävän, jonka yhtenä osana tuli etsiä kaksi internetlähdettä rokottamisen pakollisuutta kos-kevaa selvitystä varten. Lähteiden luotettavuus tuli arvioida asteikolla luotettava - melko luotettava - …

Finnish forest act as a conservation tool in protecting boreal springs and associated brypohyte flora

2011

Customer benefits of demand-side management in the Nordic electricity market

2016

The increasing share of renewable energy sources is likely to lead to price effects in Nordic electricity market, resulting especially in increased volatility of spot and imbalance prices. The greater price volatility and amount of required balancing power increase the need for Demand-Side Management (DSM) in the electricity market and may as well increase the financial benefits of DSM participants. In this research I study the DSM in electricity mar-ket and evaluate how large the financial benefits of DSM participants could be. Monte Carlo simulation method is used to simulate imbalance prices with different volatilities for Finland and Sweden. The results show that increasing volatility m…

Designing Classroom Practices for Teaching Online Inquiry : Experiences from the Field

2021

Students face several challenges when asked to locate relevant and credible information from the internet. This article introduces three principles for designing online inquiry lessons and documents what we learned from five language arts teachers from Finland who implemented and provided feedback on a learning unit framed in those design principles. Teachers implemented a researcher-designed online inquiry unit in nine upper secondary school classrooms. The unit included four 75-minute lessons sequenced to support the location, evaluation, and synthesis of information students encountered in an online inquiry task. Teachers’ diaries revealed their impressions of the unit, problems encounte…

The adoption of photovoltaic micro production systems in Finland

2016

A sustainable supply of energy is one of the most important requirements in order to achieve sustainable development. By using renewable resources society is not dependent on depleting reserves, but instead can have an inexhaustible source of clean energy. The rapid development of photovoltaics has led to lowered prices and increased efficiency making them more attractive alternative as a source of household electricity. Although governments play a key role in setting the constraints of how renewable energy is adopted, the wide-spread adoption of distributed electricity production ultimately depends on consumer decisions to buy them. This study examined the adoption process of photovoltaic …

Net-zero energy technical shelter

2011

Technical shelter for storing electronic and technical equipments has high indoor heat dissipation rate, and cooling load exists almost all year around. Energy consumption of cooling system takes majority of entire energy use. Our project aims in reducing the energy consumption by proper design of building envelop and optimal control of cooling system. Both experimental measurements and computer simulation are carried out to analyze the indoor climate and energy performance of technical shelter in different conditions. The experiments are made on a standard technical shelter. Vertical temperature gradient and air flow rate are measured by thermocouples and tracer gas technology. Energy bala…