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Planetary remote sensing with physical scattering models

Olli Wilkman

Understanding the light scattering properties of Solar System bodies is important, especially in the case of the small bodies. For these objects, most of our data is photometric, i.e. measurements of the brightness of light in broad spectral bands in visible and near-infrared. Though limited in many ways, these data can be used to derive physical properties that provide constraints on th...

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Public examination: 2.6.2016

Methods and Models in Linguistic and Musical Computational Creativity

Jukka Mikael Toivanen

Computational creativity is an area of artificial intelligence that develops algorithms and simulations of creative phenomena, as well as tools for performing creative tasks. In this thesis, we present various computational methods and models of linguistic and musical creativity. The emphasis is on developing methods that are maximally unsupervised, i.e. methods that require a minimal am...

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Public examination: 3.6.2016

Miten tulla sellaiseksi kuin on? Autenttisuus ja itsestä vieraantuminen Joel Lehtosen varhaistuotannossa

Antti Ahmala

This dissertation analyses the character depiction of Joel Lehtonen s early Symbolist-Decadent works Perm (1904), Paholaisen viulu (1904), Villi (1905), and Mataleena (1905) from a new perspective, in the context of the cultural dialogue concerning authenticity and particularly in relation to Friedrich Nietzsche s views on existential authenticity and self-alienation. The themes of authe...

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Public examination: 3.6.2016

First-principles studies of ionic oxidation of sulfur dioxide and molecular clustering

Narcisse Tsona Tchinda

Sulfur oxidation products are involved in the formation of acid rain and atmospheric aerosol particles. The formation mechanism of these sulfur-containing species is often complex, especially when ions are involved. The work of this thesis uses computational methods to explore reactions of sulfur dioxide with some atmospheric ions, and to examine the effect of humidity on the stability a...

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Public examination: 3.6.2016

Reproductive partitioning in the polygynous black ant Formica fusca

Martina Ozan

Individuals opt to breed cooperatively to increase their chances of successful propagation when resources are scarce or unpredictable. Yet, these same individuals are not genetically identical and come into conflict over limited resources they are to utilize for own reproduction. In spite of the predicted reproductive conflicts, many species, notably social insects, have evolved to becom...

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Public examination: 3.6.2016

Ortnamn i kontakt i Helsingfors : Finska inslag i bruket av gatunamn i svenska kontexter

Maria Vidberg

This study focuses on Finnish elements in the usage of Swedish place names in Helsinki. The emphasis is on name usage and toponymic competence and the material consists of spoken and written data. The study uses socio-onomastic, folk-onomastic and contact-onomastic methods.

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Public examination: 3.6.2016

Prevalence, predictors and prognosis of depressive disorders in the general population : A longitudinal population study

Niina Markkula

Depressive disorders are a major public health concern worldwide due to their pervasiveness, often chronic or recurrent course and serious adverse outcomes. These include psychosocial disability, reduced quality of life, physical health problems and increased mortality. This study examined prevalence, predictors and different adverse outcomes of depressive disorders (major depressive dis...

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Public examination: 3.6.2016

Regulation of angiotensin II type receptor by its messenger RNA-binding proteins

Michael Backlund

The renin-angiotensin system is a key regulator of blood pressure and electrolyte homeostasis. Most hemodynamic responses to angiotensin II are mediated via angiotensin II type 1 receptor (AT1R). The 3 -untranslated region (3 UTR) of AT1R mRNA is important in posttranscriptional regulation of AT1R expression. It contains multiple adenylate-uridylate-rich elements that are recognized by v...

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Public examination: 3.6.2016

Variability of Gingival Crevicular Fluid Matrix Metalloproteinase -8 Levels in Respect to Point-of-Care Diagnostics in Periodontal Diseases

Jussi Leppilahti

Matrix metalloproteinases (MMP) and especially MMP-8 is one of the most widely reported oral fluid biomarkers and a promising target candidate for periodontal point-of-care (POC) diagnostics. Periodontitis is associated with increased oral fluid MMP-8 levels, which typically decrease after conventional periodontal treatments. Employing the measurement of oral fluid MMP-8 levels diagnosti...

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Public examination: 3.6.2016

Journalismin objektiivisuus : Pragmaattinen tietokäsitys ja relativismin haaste moniarvoisessa maailmassa

Aki Petteri Lehtinen

Journalistic knowledge and its epistemological key concepts such as objectivity, truth and truthfulness have been widely criticized during the last decades. The main challenges posed to journalism as an epistemic practice and to journalism studies as an academic discipline have come from schools of thought emphasizing the post linguistic turn constructionism and the consequent relativism...

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Public examination: 3.6.2016

Antimicrobial Resistance and Its Mechanisms among Campylobacter coli and Campylobacter upsaliensis with a Special Focus on Streptomycin

Satu Olkkola

Campylobacteriosis is the most common cause of human bacterial gastroenteritis in the developed world. The most often isolated causative agent from diseased humans is C. jejuni, but also C. coli and C. upsaliensis, common colonizers of pigs and dogs, respectively, are known to cause disease. Campylobacteriosis is usually self-limiting but antimicrobial treatment is warranted in severe ca...

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Public examination: 3.6.2016

Toward an agency-centered pedagogy : A teacher's journey of expanding the context of school learning

Antti Rajala

Despite the immense stability of the social structure of schooling, recent social, economic, and technological developments are widening the gap between schools and the surrounding societies so much as to challenge the foundations of public education. Conventional educational practices are hard-pressed to deal with the challenges that contemporary knowledge societies pose for learning an...

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Public examination: 3.6.2016

Posterior Cerebral Artery Aneurysms

Felix Göhre

Aneurysms of the posterior cerebral artery are rare vascular lesions. The overall incidence is less than 1%, representing around 7% of posterior circulation aneurysms. Due to this low incidence, most of the institutional series on PCA aneurysms are small and contain less than 25 patients. Only one other series comparable in scope to ours has been previously published. The presented study...

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Public examination: 3.6.2016

Opiskelijoiden aloittamat kysymyssekvenssit suomi vieraana kielenä -oppitunnin voimavarana

Saija Merke

Tutkimus käsittelee opiskelijoiden aloittamia kysymyssekvenssejä suomi vieraana kielenä -oppitunneilla. Aineisto on kerätty ranskalaisessa yliopistossa suomen kielen alkeis- ja jatkokursseilla. Otoskausia oli kaksi ja ryhmiä yhteensä neljä. Tutkimusmetodi on etnometodologinen keskustelunanalyysi. Analyysin keskiössä ovat sekvenssit, joissa opiskelijat ottavat esille hämmentävän tai epäse...

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Public examination: 8.6.2016

The Role of the European Union at the United Nations Human Rights Council

Hanna Tuominen

This dissertation studies the EU s normative power role at the Human Rights Council (HRC), which is the key UN body in the field of human rights. The EU has proclaimed an active and visible role in the HRC as an important part of its external human rights agenda. However, the EU s normative ambitions face challenges; other actors are not necessarily willing to accept the EU s role claims...

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Public examination: 9.6.2016

Suojellut muistot - Arkeologisen perinnön hallinnan kieli, käsitteet ja ideologia

Johanna Enqvist

Johanna Enqvistin 10.6.2016 tarkastettava väitöskirja Suojellut muistot. Arkeologisen perinnön hallinnan kieli, käsitteet ja ideologia tarkastelee arkeologisen perinnön hallinnan avainkäsitteitä sekä niitä ympäröivää diskurssia: tapoja, joilla valtionhallinnon virkamiehinä sekä akateemisina tutkijoina työskentelevät arkeologit puhuvat ja kirjoittavat arkeologisesta perinnöstä/kulttuuripe...

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Public examination: 10.6.2016

Applications of quantum groups to conformally invariant random geometry

Eveliina Peltola

This thesis concerns questions motivated by two-dimensional critical lattice models of statistical mechanics, and conformal field theory (CFT). The core idea is to apply algebraic techniques to solve questions in random geometry, and reveal the algebraic structures therein. We consider the interplay between braided Hopf algebras (quantum groups) and CFT, with applications to critical lat...

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Public examination: 10.6.2016

ENDOSCOPIC THERAPY IN EXTRAHEPATIC BILIARY STRICTURES

Carola Haapamäki

Extrahepatic biliary strictures are mainly managed using stents when treated endoscopically. At present, the main stent types in clinical practice are non expandable plastic stents (NEPS) and self-expandable metallic stents (SEMS), with an up to tenfold cost for the latter. In current praxis, SEMS are widely used for palliative management of malignant biliary strictures as they have long...

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Public examination: 10.6.2016

Combining oncolytic immunotherapies to break tumor resistance

Siri Tähtinen

According to latest estimates, cancer is becoming an increasing health risk on a global scale. Consequently, novel cancer treatment modalities are urgently needed, especially for the treatment of metastatic solid tumors that are refractory to standard therapies. One promising approach in the treatment of such advanced cancers is immunotherapy which aims to elicit de novo immune responses...

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Public examination: 10.6.2016

Virus-host interactions of emerging respiratory pathogens

Janne Tynell

Respiratory virus infections are a major cause of morbidity and mortality worldwide. Decades of research have yielded many breakthroughs in our understanding of virus-host interactions, but many aspects of viral pathogenesis still remain unresolved. Vaccines and antiviral treatments have been developed, but they are imperfect or completely lacking for many viral agents. Novel emerging vi...

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Public examination: 10.6.2016

Contralateral approach to anterior circulation aneurysms

Hugo Andrade Barazarte

Objective Multiple intracranial aneurysms are frequent, with an incidence of 15-40% among intracranial aneurysms carriers. Of these carriers, 20-40% have bilateral intracranial aneurysms. The rupture risk is higher for patients with multiple intracranial aneurysms. For those patients, several treatment options are available (microsurgery comprising a unilateral-contralateral approach, bi...

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Public examination: 10.6.2016

Accelerated aging after hematopoietic stem cell transplantation in childhood - Early menopause, premature cardiovascular aging and frailty

Anu Vatanen

Long-term ovarian function was retrospectively evaluated after allogeneic hematopoietic stem cell transplantation (HSCT) in childhood and adolescence. Cardiovascular risk factors, arterial morphology and stiffness, left ventricular (LV) mass and function, physical fitness and frailty were investigated in adult and adolescent survivors of high-risk neuroblastoma (HR NBL) after autologous ...

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Public examination: 10.6.2016

Bacterial community dynamics and perennial crop growth in motor oil-contaminated soil in a boreal climate

Lijuan Yan

Soil pollution by petroleum hydrocarbons (PHCs) as a result of anthropogenic activities poses significant threats in the environment. In particular, used motor oil that contains high concentrations of aliphatics, polycyclic aromatic hydrocarbons (PAHs) and heavy metals (e.g. lead, zinc, chromium, barium and arsenic) contribute to chronic hazards including carcinogenicity. Microorganisms ...

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Public examination: 10.6.2016

Treatment, Adherence, and Disability in Bipolar Disorder

Petri Arvilommi

This study is part of a collaborative bipolar research project between the Unit of Mental Health of the National Institute for Health and Welfare, Helsinki (the former Department of Mental Health and Alcohol Research of the National Public Health Institute, Helsinki) and the Department of Psychiatry, Jorvi Hospital, Helsinki University Central Hospital (HUCH), Espoo, Finland. The Jorvi B...

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Public examination: 10.6.2016

"En mä oikein tiennyt, mihin olin hakeutumassa. Kaikesta on kuitenkin selvitty ja vaikeudet voitettu. Paljon olis kerrottavaa siitä, mitä oon oppinut"

Kati Kivistö

Suomalaisten panos Yhdistyneiden kansakuntien rauhanturvaamistoimintaan on ollut historiallisesti tarkasteltuna merkittävä. Kuudenkymmenen vuoden aikana hankittu kansallinen rauhanturvatoiminnan osaaminen on kansainvälisesti tunnustettua. Suomalainen rauhanturvatoiminta perustuu vapaaehtoisten siviilihenkilöiden halukkuuteen toimia rauhanturvatehtävässä. Tutkimukseni tavoitteena on rauha...

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Public examination: 10.6.2016

Bacterial endotoxins in type 1 diabetes

Mariann Lassenius

Around one-third of patients with type 1 diabetes develop diabetic nephropathy. Even though the pathogenesis of diabetic nephropathy is not fully understood, the process involves several environmental factors. Low grade inflammation has been linked to many metabolic diseases and is also evident in patients with type 1 diabetes, especially in the presence of nephropathy. Bacterial lipopol...

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Public examination: 10.6.2016

Social Psychological Studies on Ethical Food Choice

Jaana-Piia Mäkiniemi

Ethical food choice is a concrete everyday action to promote sustainability in term of supporting workers rights, animal welfare and environmental food production, and the local economy. The aim of the dissertation is to enhance understanding of the dimensions of ethical food choice in general, and specifically with regard to climate-friendly choices. It is assumed that at least two th...

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Public examination: 11.6.2016

Long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency in Finland – earlier diagnosis and strict diets improve the survival rate and clinical course

Tuuli Immonen

Long-chain acyl-CoA dehydrogenase deficiency (LCHADD), a severe long-chain β-oxidation disorder which, without treatment, usually leads to death, is the most frequent β-oxidation disorder in Finland. Its typical manifestations are hypoketotic hypoglycemia, hepatopathy, failure to thrive, cardiomyopathy, and metabolic crisis during the first year of life. The long term complications are r...

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Public examination: 11.6.2016

Electronic capital: Economic and social geographies of digitalization

Maria Merisalo

Digitalization, the social, economic and cultural process where individuals, organizations and societies access, adopt, use and utilize digital technologies, is expected to produce comprehensive societal benefits. Here, the spillover effects of the utilization of digital technologies such as e-government, teleworking and social media are examined in order to explore the added value that ...

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Public examination: 11.6.2016

Gatekeepers of the Family - Regulating Family Migration to Finland

Saara Pellander

This thesis explores the normative underpinnings of family migration in public discourses, in policies and their implementation. At the same time, it investigates the normative frameworks that regulations on family migration create. The relationship between family norms and immigration control is mutually co-constitutive: while policymakers and bureaucrats rely on publicly accepted and c...

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Public examination: 11.6.2016

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Evolution of dispersal - adaptive dynamics of one- and two-dimensional strategies

Karisto, Petteri / 30.05.2016

Evolution of dispersal - adaptive dynamics of one- and two-dimensional strategies Karisto, Petteri Dispersal is a significant characteristic of life history of many species. Dispersal polymorphisms in nature propose that dispersal can have significant effect on species diversity. Evolution of dispersal is one probable reason to speciation. I consider an environment of well-connected and ...

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Evolutionary suicide in a two-prey-one-predator model with Holling type II functional response

Vitale, Caterina / 30.05.2016

Evolutionary suicide in a two-prey-one-predator model with Holling type II functional response Vitale, Caterina This thesis starts from the Matsuda and Abrams paper "Timid Consumers: Self-Extinction Due to Adaptive Change in Foraging and Anti-predator Effort." Matsuda and Abrams show an example of evolutionary suicide due to the evolution of prey timidity in a predator-prey mod...

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Käytetyn ydinpolttoaineen loppusijoitus ja WPDElab 3 -mittausjärjestely

Rinta-aho, Jari / 30.05.2016

Käytetyn ydinpolttoaineen loppusijoitus ja WPDElab 3 -mittausjärjestely Rinta-aho, Jari Suomessa syntyy vuosittain noin 65 tonnia käytettyä ydinpolttoainetta. Suunnitelmien mukaan tämä jäte loppusijoitetaan Olkiluodon ydinvoimalan alueelle noin 450 metrin syvyyteen louhittavaan ONKALO-loppusijoitustilaan. Loppusijotustilan rakenne pohjautuu ruotsalaiseen KBS3-loppusijoitusratkaisuun. Lop...

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Tähtienvälisen pölyn dynamiikkaa sähkömagneettisessa säteilykentässä

Herranen, Joonas / 30.05.2016

Tähtienvälisen pölyn dynamiikkaa sähkömagneettisessa säteilykentässä Herranen, Joonas Tässä tutkielmassa tarkastellaan tähtienvälisen pölyn dynamiikkaa, joka kytkeytyy sähkömagneettisen säteilyn sirontaan. Klassisen mekaniikan perustavanlaatuisimpiin pyörimisyhtälöihin perustuva pölyhiukkasen dynamiikka ja sirontatapahtuman Maxwellin yhtälöistä juontuva dynaaminen perusta kytketään tutki...

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