Browsing by Subject "MEDIA"

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  • Sinha, Snehadri; Narjus-Sterba, Matilda; Tuomainen, Katja; Kaur, Sippy; Seppänen-Kaijansinkko, Riitta; Salo, Tuula; Mannerström, Bettina; Al-Samadi, Ahmed (2020)
    Mesenchymal stem cells (MSCs) are commonly isolated from bone marrow and adipose tissue. Depending on the tissue of origin, MSCs have different characteristics and physiological effects. In various cancer studies, MSCs have been found to have either tumor-promoting or tumor-inhibiting action. This study investigated the effect of adipose tissue-MSCs (AT-MSCs) and bone marrow-MSCs (BM-MSCs) on global long interspersed nuclear element-1 (LINE-1) methylation, the expression level of microenvironment remodeling genes and cell proliferation, migration and invasion of oral tongue squamous cell carcinoma (OTSCC). Additionally, we studied the effect of human tongue squamous carcinoma (HSC-3)-conditioned media on LINE-1 methylation and the expression of microenvironment remodeling genes in AT-MSCs and BM-MSCs. Conditioned media from HSC-3 or MSCs did not affect LINE-1 methylation level in either cancer cells or MSCs, respectively. In HSC-3 cells, no effect of MSCs-conditioned media was detected on the expression ofICAM1, ITGA3orMMP1. On the other hand, HSC-3-conditioned media upregulatedICAM1andMMP1expression in both types of MSCs. Co-cultures of AT-MSCs with HSC-3 did not induce proliferation, migration or invasion of the cancer cells. In conclusion, AT-MSCs, unlike BM-MSCs, seem not to participate in oral cancer progression.
  • Vuorio, Alpo; Laukkala, Tanja; Junttila, Ilkka; Bor, Robert; Budowle, Bruce; Pukkala, Eero; Navathe, Pooshan; Sajantila, Antti (2018)
    Pilot aircraft-assisted suicides (AAS) are rare, and there is limited understanding of copycat phenomenon among aviators. The aim of this study was to evaluate the possible effect the 11 September 2001, terrorist attacks had on pilot AASs in the U.S. Fatal aviation accidents in the National Transportation Safety Board (NTSB) database were searched using the following search words: "suicide", "murder-suicide" and "homicide-suicide". The timeline between 11 September 1996, and 11 September 2004, was analyzed. Only those accidents in which NTSB judged that the cause of the accident was suicide were included in the final analysis. The relative risk (RR) of the pilot AASs in all fatal accidents in the U.S. was calculated in order to compare the one, two, and three-year periods after the September 11 terrorist attacks with five years preceding the event. The RR of a fatal general aviation aircraft accident being due to pilot suicide was 3.68-fold (95% confidence interval 1.04-12.98) during the first year after 11 September 2001, but there was not a statistically significant increase in the later years. This study showed an association, albeit not determinate causal effect, of a very specific series of simultaneous terrorist murder-suicides with subsequent pilot AASs.
  • Herkman, Juha (2017)
    Populism as a concept is elusive and has been connected to very different political movements. Generally, populism's connotations are rather negative and the term is often used pejoratively in the academic field as well. However, Ernesto Laclau has approached populism by arguing that populist reason is a manifestation of political logic in which group identification formed through various signifiers such as 'the people', which are articulated as part of an 'equivalence chain' - eventually establishes political agency as a totality. This paper uses Laclau's articulation theory to analyse the public construction of contemporary populism in the Nordic countries of Sweden, Finland, Norway and Denmark. The analysis demonstrates that mainstream media frame populism rather negatively, although examples of the term's positive identification with 'the people' are available, especially in the tabloid media. Thus, the positive identification behind the forming of populist movements clashes with the media discourse that prioritizes established journalistic views, practices and sources, making populism a 'floating signifier', that is, a concept that has several meanings which are contested in various public discourses. A general pattern in the construction of populism in Northern European multi-party democracies can be discerned, thus identifying the central role of nationalist and nativist identifications in contingent populist articulations. However, the differences between the Nordic countries emphasize a context-driven approach.
  • Kantomaa, Marko T.; Stamatakis, Emmanuel; Kankaanpaa, Anna; Kajantie, Eero; Taanila, Anja; Tammelin, Tuija (2016)
    The Northern Finland Birth Cohort 1986 (N = 8,061) was used to investigated the joint associations of physical activity and sedentary behavior with academic achievement. Logistic regression analysis was used to evaluate how classes formed by latent class analysis (LCA) according to overall physical activity, sports club membership, viewing TV, using a computer, reading books and magazines, other sedentary activities, and sleep were associated with grade-point average. When adjusted for gender, self-rated health, and mother's education, physically active adolescents and generally active adolescents were about twice as likely to have high grade-point average compared with sedentary TV viewers.
  • Kaimio, Mirja L. M.; Lappalainen, Anu K.; Rahmani, Vahideh; Männikkö, Sofia; Laitinen-Vapaavuori, Outi M. (2020)
    Otitis externa and otitis media are common in American Cocker Spaniels, however breed-specific aural CT descriptions are currently lacking. This prospective and retrospective, observational, analytical study aimed to describe quantitative CT characteristics of the horizontal ear canal and the tympanic bulla in American Cocker Spaniels versus similar-sized mesaticephalic dogs. We prospectively performed clinical examinations and aural CT scanning for 38 American Cocker Spaniels. Computed tomographic transverse area of the osseous horizontal ear canal (TA1), transverse area of the widest air-filled part of the cartilaginous horizontal ear canal (TA2), tympanic bulla volume, and tympanic bulla wall thickness were measured. The TA1 and TA2 measurements were compared with those of 23 retrospectively recruited, similar-sized mesaticephalic dogs that had undergone CT-scanning of the head for non-ear-related reasons. The TA1 and TA2 did not differ for healthy American Cocker Spaniels and mesaticephalic dogs. Severely affected American Cocker Spaniels had significantly smaller TA2 (P <.001). The intraclass correlation coefficient for intraobserver and interobserver repeatability was 0.972 and 0.983 for TA1 and 0.994 and 0.998 for TA2, respectively. Variation between individuals was subjectively noted in healthy and affected American Cocker Spaniels, but mean tympanic bulla volume was slightly smaller in relation to body weight, and the tympanic bulla wall was thicker than in previous reports for mesaticephalic dogs. The tympanic bulla wall appeared thicker rostro-ventrally than caudo-ventrally in 44% of the dogs. Our results imply that a relatively thick tympanic bulla wall may be a normal CT variation and should be interpreted cautiously in this breed.
  • Granholm, Camilla (2016)
    This article presents a qualitative study of ICT use among Finnish young people attending training programmes for youth outside employment and education. The data come from six focus group interviews and three individual interviews, as well as a single focus group interview with involved supervisors. The data was analyzed using McQuail's (1983) theory regarding the motives for individual media use. The results show that the young people use ICT primarily for entertainment, but their use is diverse. Young people choose the tools and dimensions for interaction that best fulfill their needs, blending together ingredients from both online and offline sources. Unlike previous research, young people in this study stated that they prefer talking to someone face-to-face about severe (health-related or emotional) problems. If social and youth services want to meet young people on their own terms, both online and offline services are needed.
  • Ylä-Anttila, Tuomas; Gronow, Antti; Stoddart, Mark C.J.; Broadbent, Jeffrey; Schneider, Volker; Tindall, David B. (2018)
    Why do some countries enact more ambitious climate change policies than others? Macro level economic and political structures, such as the economic weight of fossil fuel industries, play an important role in shaping these policies. So do the national science community and the national culture of science. But the process by which such macro-structural factors translate into political power and national climate change policies can be analyzed through focussing on meso level policy networks. The Comparing Climate Change Policy Networks (COMPON) research project has studied climate change policy networks in twenty countries since 2007. Along with some findings, this paper presents some methodological challenges faced and the solutions developed in the course of the project. After a presentation of the project, we first outline some practical challenges related to conducting cross-national network surveys and solutions to overcome them, and present the solutions adopted during the project. We then turn to challenges related to causal explanation of the national policy differences, and propose Qualitative Comparative Analysis as one solution for combining different levels of analysis (macro and meso) and different data types (quantitative, network and qualitative).
  • Laukkala, Tanja; Vuorio, Alpo; Bor, Robert; Budowle, Bruce; Navathe, Pooshan; Pukkala, Eero; Sajantila, Antti (2018)
    Aircraft-assisted pilot suicide is a rare but serious phenomenon. The aim of this study was to evaluate changes in pilot aircraft-assisted suicide risks, i.e., a copycat effect, in the U.S. and Germany after the Germanwings 2015 incident in the French Alps. Aircraft-assisted pilot suicides were searched in the U.S. National Transportation Safety Board (NTSB) accident investigation database and in the German Bundestelle fur Flugunfalluntersuchung (BFU) Reports of Investigation database five years before and two years after the deliberate crash of the Germanwings flight into the French Alps in 2015. The relative risk (RR) of the aircraft-assisted pilot suicides was calculated. Two years after the incident, three out of 454 (0.66%) fatal incidents were aircraft-assisted suicides compared with six out of 1292 (0.46%) in the prior five years in the NTSB database. There were no aircraft-assisted pilot suicides in the German database during the two years after or five years prior to the Germanwings crash. The relative aircraft-assisted pilot suicide risk for the U.S. was 1.4 (95% CI 0.3-4.2) which was not statistically significant. Six of the pilots who died by suicide had told someone of their suicidal intentions. We consider changes in the rate to be within a normal variation. Responsible media coverage of aircraft incidents is important due to the large amount of publicity that these events attract.
  • Bakharev, F. L.; Cardone, G.; Nazarov, S. A.; Taskinen, J. (2017)
    We give an example of a scalar second order differential operator in the plane with double periodic coefficients and describe its modification, which causes an additional spectral band in the essential spectrum. The modified operator is obtained by applying to the coefficients a mirror reflection with respect to a vertical or horizontal line. This change gives rise to Rayleigh type waves localized near the line. The results are proven using asymptotic analysis, and they are based on high contrast of the coefficient functions.
  • Nazarov, Sergei A.; Taskinen, Jari (2018)
    Abstract We consider the spectral Dirichlet–Laplacian problem on a domain which is formed from a periodic waveguide Π perturbed by non-compact, non-periodic changes of geometry. We show that the domain perturbation causes an addition to the essential spectrum, which consists of isolated points belonging to the discrete spectrum of a model problem. This model problem is posed on a domain, which is just a compact perturbation of Π. We discuss the position of the new spectral components in relation to the essential spectrum of the problem in Π.
  • Helberger, Natali; Karppinen, Kari; D'Acunto, Lucia (2018)
    Personalized recommendations in search engines, social media and also in more traditional media increasingly raise concerns over potentially negative consequences for diversity and the quality of public discourse. The algorithmic filtering and adaption of online content to personal preferences and interests is often associated with a decrease in the diversity of information to which users are exposed. Notwithstanding the question of whether these claims are correct or not, this article discusses whether and how recommendations can also be designed to stimulate more diverse exposure to information and to break potential ‘filter bubbles’ rather than create them. Combining insights from democratic theory, computer science and law, the article makes suggestions for design principles and explores the potential and possible limits of ‘diversity sensitive design’.
  • Multia, Evgen; Tear, Crystal Jing Ying; Palviainen, Mari; Siljander, Pia R-M; Riekkola, Marja-Liisa (2019)
    A new, fast and selective immunoaffinity chromatographic method including a methacrylate-based convective interaction media (CIM (R)) disk monolithic column, immobilized with anti-human CD61 antibody, was developed for the isolation of CD61-containing platelet-derived extracellular vesicles (EVs) from plasma. The isolated EVs were detected and size characterized by asymmetrical flow field-flow fractionation (AsFlFFF) with multi-angle light-scattering (MALS) and dynamic light-scattering (DLS) detection, and further confirmed by nanoparticle tracking analysis (NTA) and transmission electron microscopy (TEM). The mean size of platelet-derived EV isolates from the anti-CD61 CIM (R) disk monolithic column were 174 nm (SD 60 nm) based on the NTA results. These results indicated a successful isolation of platelet-derived EVs, which was confirmed by Western blotting the isolates against the EV-specific markers CD9 and TSG101 together with transmission electron microscopy. Additional elucidation of MALS and DLS data provided detailed information of the size distribution of the isolated fractions, confirming the successful isolation of also small platelet-derived EVs ranging from 30 to 130 nm based on the hydrodynamic radii. The isolation procedure took only 19 min and the time can be even further decreased by increasing the flow rate. The same immunoaffinity chromatographic procedure, following AsFlFFF allowed also the isolation and characterization of platelet-derived EVs from plasma in under 60 min. Since it is possible to regenerate the anti-CD61 disk for multiple uses, the methodology developed in this study provides a viable substitution and addition to the conventional EV isolation procedures. (C) 2019 Elsevier B.V. All rights reserved.
  • Taira, Teemu (2019)
    This article examines religion in Finnish newspapers, arguing that religion-related discourses have changed from one of Lutheran dominance to one of diversity. The main data consists of a longitudinal sample (1946-2016) of the most popular Finnish newspaper, Helsingin Sanomat, and especially of its editorials and readers' letters. Additional data covers a wider variety of newspapers from the 1990s to 2018. The data is analysed using quantitative content analysis and a discursive approach. It will be suggested that it is possible to discuss diversity both as an emergent discourse and a theme in the Finnish media since the mid-1990s, thereby overcoming earlier frameworks that took Lutheranism for granted or gave it a special role in the private sphere. The analysis shows that these shifts do not provide clear support for the idea that newspapers and journalism are anti-religious; rather, it suggests that they may be understood as having a 'liberalizing' effect, especially when religious values are not seen as compatible with those of journalists and newspapers.
  • Kaakinen, Markus; Sirola, Anu; Savolainen, Iina; Oksanen, Atte (2020)
    Online hate is widely identified as a social problem, but its social psychological dimensions are yet to be explored. We used an integrative social psychological framework for analyzing online hate offending and found that both personal risk factors and online group behavior were associated with online hate offending. Study 1, based on socio-demographically balanced survey data (N = 1200) collected from Finnish adolescents and young adults, found that impulsivity and internalizing symptoms were positively associated with online hate offending. Furthermore, social homophily was positively associated with online hate offending but only among those with average or high level of internalizing symptoms. Social identification with online communities was not associated with hate offending. In Study 2, based on a vignette experiment (N = 160), online hate offenders were more likely than others to rely on in-group stereotypes (i.e. self-stereotype) in anonymous online interaction and, as a consequence, follow perceived group norms. These associations were found only when a shared group identity was primed. We conclude that both personal risk factors and group behavior are related to online hate but they have different implications for reducing hateful communication in social media.
  • Friberg, Kalervo (2013)
    A student self-determination profile of occupational and educational choices was examined through the concepts of Locus of Causality and Locus of Orientation. Research questions associated with respondents’ certainty of occupation and orientation to vocational education were answered. The tested hypotheses were as follows: (a) Independence, initiative, self-guidance, choice of discussion forums, and gender are related to certainty of future occupation choice and choice of vocational education; (b) certainty of occupation relates to choosing vocational education; (c) negatively biased media lessens interest in vocational education; and (d) vocational education choices are related to gender. A survey of ninth-grade students in Finnish comprehensive school was conducted after implementation of a work-orientation program defined in the national comprehensive school curriculum. At the local school system level, 649 subjects of the mean ages of 16.0 years participated in an Internet survey in two school districts in southwestern Finland in 2008. The variables were inserted in Linear Multiple Regression Analysis in IBM SPSS. The means of vocational school choice and certainty of occupation, and vocational school choice and negative media image were compared in SPSS means. An independent-samples ttest for vocational school choice and sex was conducted. Statistically significant regression models of loci of orientation and locus of causality were found. The more the respondents were certain of their occupation choice, the more they expressed their secondary education orientation to be vocational school. When students discussed their choices less at home, their orientation to vocational education weakened. A negative media image was not associated with vocational school choice in this data. The measured means for girls’ and boys’ orientations to vocational school did not show statistically significant differences.
  • Svensson, Urban; Voutilainen, Mikko; Muuri, Eveliina; Ferry, Michel; Gylling, Björn (2019)
    A numerical reactive transport model for crystalline rocks is developed and evaluated. The model is based on mineral maps generated by X-ray micro computed tomography (X-μCT); the maps used have a resolution of approximately 30 μm and the rock samples are on the cm scale. A computational grid for the intergranular space is generated and a micro-DFN (Discrete Fracture Network) model governs the grid properties. A particle tracking method (Time Domain Random Walk) is used for transport simulations. The basic concept of the model can now be formulated as follows; “when a particle is close to a reactive mineral surface it has a certain probability to get sorbed during a certain time span. Once sorbed it will remain so a certain time”. The model requires a number of input parameters that represent the sorption properties of the reactive minerals. Attempts are made to relate the parameters to traditional distribution parameters. The model is evaluated by comparisons with recent laboratory experimental data. These experiments consider two rock types (veined gneiss and pegmatitic granite) and two radionuclides (cesium and barium). It is concluded that the new reactive transport model can simulate the experimental data in a consistent and realistic way.
  • Herkman, Juha Pekka (2018)
    The paper analyses political scandals connected to the contemporary populist parties of Denmark, Finland and Sweden. The dramaturgies of these scandals repeat the general patterns of political scandals identified in previous studies, but they also share special characteristics that make them a specific type of neo-populist scandal. The starting point of the typical neo-populist scandal occurs due to the moral transgression of a member of a populist movement, usually through the use of unacceptable language or behaviour, insulting non-native inhabitants or other minorities within the population. However, provocation and playing the role of the underdog are common strategies employed by populists, and a populist movement may even benefit from a scandal, though the consequences of the scandal depend on the life phase of the movement and on the status of the member involved in the scandal. The moral transgressions and political consequences of neo-populist scandals may serve as an indicator of the condition liberal democracy enjoys, but also reveal contextual differences in particular societies and their moral order.
  • Herkman, Juha (2019)
    This article analyses political cartoons that depict contemporary populist politicians in Denmark, Finland, and Sweden between 2005 and 2015, a period which focuses on the electoral successes of these movements. The hypothesis is that by analyzing cartoons we can explore the underlying moral and normative confrontations linked to current political populism in the Nordic liberal democracies, which arose during the insurgent phase of the domestic right-wing parties. In total, 60 political cartoons are analyzed by means of content categorization and visual semiotics. The most popular caricatures in the cartoons depicted the leaders of the populist parties, while the most common signifiers linked the populism in the cartoons explicitly to fascism, Nazism, nativism, and racism. In this, the cartoons differed from news journalism, reflecting the specific role of cartoons in public opinion discourse and indicating special characteristics that derive from particular political contexts and also the cartoonists' own perspectives.
  • Lindqvist, Hannakaisa; Martikainen, Julia; Räbinä, Jukka; Penttilä, Antti; Muinonen, Karri (2018)
    Light scattering by particles large compared to the wavelength of incident light is traditionally solved using ray optics which considers absorption inside the particle approximately, along the ray paths. To study the effects rising from this simplification, we have updated the ray-optics code SIRIS to take into account the propagation of light as inhomogeneous plane waves inside an absorbing particle. We investigate the impact of this correction on traditional ray-optics computations in the example case of light scattering by ice crystals through the extended near-infrared (NIR) wavelength regime. In this spectral range, ice changes from nearly transparent to opaque, and therefore provides an interesting test case with direct connection and applicability to atmospheric remote-sensing measurements at NIR wavelengths. We find that the correction for inhomogeneous waves systematically increases the single-scattering albedo throughout the NIR spectrum for both randomly-oriented, column-like hexagonal crystals and ice crystals shaped like Gaussian random spheres. The largest increase in the single-scattering albedo is 0.042 for hexagonal crystals and 0.044 for Gaussian random spheres, both at λ=2.725 µm. Although the effects on the 4  ×  4 scattering-matrix elements are generally small, the largest differences are seen at 2.0 µm and 3.969 µm wavelengths where the correction for inhomogeneous waves affects mostly the backscattering hemisphere of the depolarization-connected P22/P11, P33/P11, and P44/P11. We evaluated the correction for inhomogeneous waves through comparisons against the discrete exterior calculus (DEC) method. We computed scattering by hexagonal ice crystals using the DEC, a traditional ray-optics code (SIRIS3), and a ray-optics code with inhomogeneous waves (SIRIS4). Comparisons of the scattering-matrix elements from SIRIS3 and SIRIS4 against those from the DEC suggest that consideration of the inhomogeneous waves brings the ray-optics solution generally closer to the exact result and, therefore, should be taken into account in scattering by absorbing particles large compared to the wavelength of incident light.