| 1. |
- Kukli, Kaupo, et al.
(författare)
-
Atomic layer deposition of Ru films from bis(2,5-dimethylpyrrolyl)ruthenium and oxygen
- 2012
-
Ingår i: Thin Solid Films. - : Elsevier BV. - 0040-6090 .- 1879-2731. ; 520:7, s. 2756-2763
-
Tidskriftsartikel (refereegranskat)abstract
- Ru thin films were grown on hydrogen terminated Si, SiO2, Al2O3, HfO2, and TiO2 surfaces by atomic layer deposition from bis(2,5-dimethylpyrrolyl)ruthenium precursor and oxygen. The 4-20 nm thick films on these surfaces consisted of nanocrystalline hexagonal metallic ruthenium, regardless of the deposition temperature. At the lowest temperatures examined, 250-255 degrees C, the growth of the Ru films was favored on silicon, compared to the growth on Al2O3, TiO2 and HfO2. At higher temperatures the nucleation and growth of Ru became enhanced in particular on HfO2, compared to the process on silicon. At 320-325 degrees C, no growth occurred on Si-H and SiO2-covered silicon. Resistivity values down to 18 mu Omega.cm were obtained for ca. 10 nm thick Ru films.
|
|
| 2. |
- Ramasamy, Adaikalavan, et al.
(författare)
-
Genome-Wide Association Studies of Asthma in Population-Based Cohorts Confirm Known and Suggested Loci and Identify an Additional Association near HLA
- 2012
-
Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 7:9, s. e44008-
-
Tidskriftsartikel (refereegranskat)abstract
- Rationale: Asthma has substantial morbidity and mortality and a strong genetic component, but identification of genetic risk factors is limited by availability of suitable studies. Objectives: To test if population-based cohorts with self-reported physician-diagnosed asthma and genome-wide association (GWA) data could be used to validate known associations with asthma and identify novel associations. Methods: The APCAT (Analysis in Population-based Cohorts of Asthma Traits) consortium consists of 1,716 individuals with asthma and 16,888 healthy controls from six European-descent population-based cohorts. We examined associations in APCAT of thirteen variants previously reported as genome-wide significant (P < 5x10(-8)) and three variants reported as suggestive (P < 5 x 10(-7)). We also searched for novel associations in APCAT (Stage 1) and followed-up the most promising variants in 4,035 asthmatics and 11,251 healthy controls (Stage 2). Finally, we conducted the first genome-wide screen for interactions with smoking or hay fever. Main Results: We observed association in the same direction for all thirteen previously reported variants and nominally replicated ten of them. One variant that was previously suggestive, rs11071559 in RORA, now reaches genome-wide significance when combined with our data (P = 2.4x10(-9)). We also identified two genome-wide significant associations: rs13408661 near IL1RL1/IL18R1 (PStage1+Stage2 = 1.1x10(-9)), which is correlated with a variant recently shown to be associated with asthma (rs3771180), and rs9268516 in the HLA region (PStage1+Stage2 = 1.1x10(-8)), which appears to be independent of previously reported associations in this locus. Finally, we found no strong evidence for gene-environment interactions with smoking or hay fever status. Conclusions: Population-based cohorts with simple asthma phenotypes represent a valuable and largely untapped resource for genetic studies of asthma.
|
|
| 3. |
- Vockenhuber, Christof, et al.
(författare)
-
Energy-loss straggling of 2–10 MeV/u Kr ions in gases
- 2013
-
Ingår i: European Physical Journal D. - : EDP Sciences: EPJ. - 1434-6060 .- 1434-6079. ; 67:7
-
Tidskriftsartikel (refereegranskat)abstract
- Measurements have been performed on a time-of-flight setup at the Jyväskylä K130 cyclotron, aiming at energy-loss straggling of heavy ions in gases. Theoretical predictions based on recently developed theory as well as an empirical interpolation formula predict that straggling can be more than ten times higher than Bohr straggling in the MeV/u regime. Our measurements with up to 9.3 MeV/u Kr ions on He, N2, Ne and Kr targets confirm this feature. Our calculations show the relative contributions of linear straggling, bunching including packing, and charge exchange. Our results for stopping cross sections are compatible with values from the literature.
|
|
| 4. |
- Alissandrakis, Aris, 1975-, et al.
(författare)
-
Visualizing dynamic text corpora using Virtual Reality
- 2018
-
Ingår i: ICAME 39 : Tampere, 30 May – 3 June, 2018. - Tampere : University of Tampere. ; , s. 205-205
-
Konferensbidrag (refereegranskat)abstract
- In recent years, data visualization has become a major area in Digital Humanities research, and the same holds true also in linguistics. The rapidly increasing size of corpora, the emergence of dynamic real-time streams, and the availability of complex and enriched metadata have made it increasingly important to facilitate new and innovative approaches to presenting and exploring primary data. This demonstration showcases the uses of Virtual Reality (VR) in the visualization of geospatial linguistic data using data from the Nordic Tweet Stream (NTS) project (see Laitinen et al 2017). The NTS data for this demonstration comprises a full year of geotagged tweets (12,443,696 tweets from 273,648 user accounts) posted within the Nordic region (Denmark, Finland, Iceland, Norway, and Sweden). The dataset includes over 50 metadata parameters in addition to the tweets themselves.We demonstrate the potential of using VR to efficiently find meaningful patterns in vast streams of data. The VR environment allows an easy overview of any of the features (textual or metadata) in a text corpus. Our focus will be on the language identification data, which provides a previously unexplored perspective into the use of English and other non-indigenous languages in the Nordic countries alongside the native languages of the region.Our VR prototype utilizes the HTC Vive headset for a room-scale VR scenario, and it is being developed using the Unity3D game development engine. Each node in the VR space is displayed as a stacked cuboid, the equivalent of a bar chart in a three-dimensional space, summarizing all tweets at one geographic location for a given point in time (see: https://tinyurl.com/nts-vr). Each stacked cuboid represents information of the three most frequently used languages, appropriately color coded, enabling the user to get an overview of the language distribution at each location. The VR prototype further encourages users to move between different locations and inspect points of interest in more detail (overall location-related information, a detailed list of all languages detected, the most frequently used hashtags). An underlying map outlines country borders and facilitates orientation. In addition to spatial movement through the Nordic areas, the VR system provides an interface to explore the Twitter data based on time (days, weeks, months, or time of predefined special events), which enables users to explore data over time (see: https://tinyurl.com/nts-vr-time).In addition to demonstrating how the VR methods aid data visualization and exploration, we will also briefly discuss the pedagogical implications of using VR to showcase linguistic diversity.
|
|
| 5. |
- Alissandrakis, Aris, 1975-, et al.
(författare)
-
Visualizing rich corpus data using virtual reality
- 2019
-
Ingår i: Studies in Variation, Contacts and Change in English. - Helsinki : VARIENG. - 1797-4453. ; 20
-
Tidskriftsartikel (refereegranskat)abstract
- We demonstrate an approach that utilizes immersive virtual reality (VR) to explore and interact with corpus linguistics data. Our case study focuses on the language identification parameter in the Nordic Tweet Stream corpus, a dynamic corpus of Twitter data where each tweet originated within the Nordic countries. We demonstrate how VR can provide previously unexplored perspectives into the use of English and other non-indigenous languages in the Nordic countries alongside the native languages of the region and showcase its geospatial variation. We utilize a head-mounted display (HMD) for a room-scale VR scenario that allows 3D interaction by using hand gestures. In addition to spatial movement through the Nordic areas, the interface enables exploration of the Twitter data based on time (days, weeks, months, or time of predefined special events), making it particularly useful for diachronic investigations.In addition to demonstrating how the VR methods aid data visualization and exploration, we briefly discuss the pedagogical implications of using VR to showcase linguistic diversity. Our empirical results detail students’ reactions to working in this environment. The discussion part examines the benefits, prospects and limitations of using VR in visualizing corpus data.
|
|
| 6. |
- Auer, Anita, et al.
(författare)
-
An Electronic Corpus of Letters of Artisans and the Labouring Poor (England, c. 1750‐1835) : Compilation Principles and Coding Conventions
- 2014
-
Ingår i: RECENT ADVANCES IN CORPUS LINGUISTICS: DEVELOPING AND EXPLOITING CORPORA. - Amsterdam : Rodopi. - 9789042038714 - 9789401211130 ; , s. 9-29
-
Konferensbidrag (refereegranskat)abstract
- This paper presents a collaborative project that focuses on letters of artisans and the labouring poor in England, c. 1750-1835 (LALP). The project's objective is to create a corpus that allows for new research perspectives regarding the diachronic development of the English language by adding data representing language of the lower classes. An opportunity for an insight into the language use of the labouring poor has been provided by the laws for poor relief which permitted people in need to apply for out-relief from parish funds during the period 1795-1834. For the last 18 years, the independent scholar Tony Fairman has collected and transcribed more than 2000 poor relief application letters and other letters by artisans and the labouring poor. In this project Fairman's letter collection is being converted into an electronic corpus. Apart from converting the material into electronic form, the transcribed texts will be supplemented with contextual information and manuscript images. This paper presents the letter material, it describes the conversion of the letter collection into a corpus and discusses some of the problems and challenges in the conversion process.(1)
|
|
| 7. |
|
|
| 8. |
|
|
| 9. |
-
Dimensions of Sociolinguistic Landscapes in Europe : Materials and Methodological Solutions
- 2015
-
Samlingsverk (redaktörskap) (refereegranskat)abstract
- The articles in this volume investigate everyday textual material of sociolinguistic landscapes in the early 21st century. Sociolinguistic landscapes reflect societal change, and they enable observers to map what linguistic resources are used in various contexts and to study how these resources interact and are interpreted. The articles present not only quantitative results of the presence of languages in signs but also look into how authors and designers make use of an endless pool of linguistic resources, how visible semiotic items contribute to create a sense of space, what types of mental processes are involved in the production, and how various audiences (residents, occasional passers-by, and language regulators) interpret and construct signs and sociolinguistic landscapes to form their own understanding of semiotic space.
|
|
| 10. |
- Fatemi, Masoud, 1990-, et al.
(författare)
-
Self-Similarity of Twitter Users
- 2021
-
Ingår i: Proceedings of the 2021 Swedish Workshop on Data Science (SweDS). - : IEEE. - 9781665418300
-
Konferensbidrag (refereegranskat)abstract
- Earlier studies have established that the (perceived) similarity of users is highly subjective and reflects more on how people respect/admire others rather than their characteristics or behavioral similarities. We study this phenomenon among Twitter users, and while confirm that it is indeed the case, we further explore the components of similarity by investigating it using data from three categories (interactions between egos and alters, profile-based activity history, and linguistic content in the messages). We use interactions as estimation for admiration and observe that it has more impact and a higher correlation to the perceived similarity than other objective measures, including similarity based on user profiles and their use of hashtags.
|
|
