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Implications of Dark Matter In Supersymmetric Models

Lasse Leinonen

Supersymmetry is a proposed new symmetry that relates bosons and fermions. If supersymmetry is realized in nature, it could provide a solution to the hierarchy problem, and one of the new particles it predicts could explain dark matter. In this thesis, I study supersymmetric models in which the lightest supersymmetric particle can be responsible for dark matter. I discuss a scenario in w...

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Public examination: 28.1.2015

Animal welfare and economics in beef production

Tuomas Herva

Animal welfare (AW) is an issue of growing concern in Finland as well as in other developed countries. A public debate has focused on the potential AW problems resulting from current production systems. Possibilities to find mutual benefit for animals, farmers, industry and society have received less attention. According to the reviewed literature the inconsistency of determination and p...

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Public examination: 30.1.2015

Effect of perioperative dexamethasone on surgical site healing in patients with facial fractures

Johanna Snäll

Short-term glucocorticoids (GCs) are frequently used in association with oral and maxillofacial surgery to prevent postoperative pain, edema, and nausea. However, the influence on tissue repair and the anti-inflammatory and immunosuppressive features of GCs may have an adverse impact on healing of the surgical site. The main aim of this study was to determine the occurrence of disturbanc...

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Public examination: 30.1.2015

On the Jacobian Equation and the Hardy Space H^1(C)

Sauli Lindberg

The dissertation deals with the Jacobian equation in the plane. R.R. Coifman, J.-P. Lions, Y. Meyer and S. Semmes proved in their seminal paper from 1993 that when a mapping from the n-space to the n-space belongs to a suitable homogeneous Sobolev space, its Jacobian determinant belongs to a real-variable Hardy space. Coifman, Lions, Meyer and Semmes proceeded to ask the following famous...

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Public examination: 30.1.2015

Alternative sigma factors F, E, G, and K in Clostridium botulinum sporulation and stress response

David Kirk

Clostridium botulinum presents a risk to food safety through the production of endospores. These spores are highly heat-resistant and may withstand temperatures used in food processing. Despite this, the process of spore formation is poorly understood in C. botulinum. This study aimed to analyse in Group I C. botulinum ATCC 3502 the role of sigma (σ) factors σF, σE, σG, and σK. The role ...

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Public examination: 30.1.2015

Swimming through troubled waters : Eutrophication of the Baltic Sea and parasites of the threespine stickleback

Alexandre Budria

Recent research has strongly linked disease emergence and resurgence with human-induced environmental change. Habitat alteration, biodiversity loss, pollution, climate change and introduced species are nowadays considered potential threats to human and wildlife health. However, the impacts of these changes are not always so clear. Recent findings indicate that anthropogenic disturbances ...

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Public examination: 30.1.2015

Queer as a Political Concept

Jacek Kornak

The subject of this study is the term: queer which I analyse as a political concept. In many English-speaking countries queer has been a common abusive term for homosexuals and other sexually non-normative individuals. From around the end of the 1980s the term was picked up by many activists and academics as a tool for political engagement. Initially queer was politicized in the context ...

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Public examination: 4.2.2015

Job control as a predictor of mental and cardiovascular health: a prospective multicohort study

Matti Joensuu

Job control has been a key concept in research on the psychosocial work environment and employee health for decades. A general hypothesis is that the more job control employees have, the lower their risk of stress-related diseases. However, the evidence to date has been inconclusive. The two components of job control, skill discretion and decision authority, may be differentially associa...

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Public examination: 6.2.2015

Bayesian Stochastic Partition Models For Markovian Dependence Structures

Väinö Jääskinen

In various fields of knowledge we can observe that the availability of potentially useful data is increasing fast. A prime example is the DNA sequence data. This increase is both an opportunity and a challenge as new methods are needed to benefit from the big data sets. This has sparked a fruitful line of research in statistics and computer science that can be called machine learning. In...

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Public examination: 6.2.2015

STRESS RESPONSE OF GROUP I AND II CLOSTRIDIUM BOTULINUM

Yağmur Derman

The capability of Clostridium botulinum to survive food processing and grow in foods is a substantial hazard to human health. Clostridium botulinum can thrive under stress conditions and the wide genetic variation among C. botulinum strains reflects differences in their growth properties. However, the strain variation in growth, molecular mechanisms, and genetic markers behind the stress...

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Public examination: 6.2.2015

Added-value innovation of forest biomass supply chains

Kalle Karttunen

The aim of this work was to study how process innovation can be applied in forest biomass supply chains for reducing costs to add value compared to traditional supply chains. The work consisted of four articles using alternative data and a variety of methods.

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Public examination: 6.2.2015

Modelling the Role of Charge in Atmospheric Particle Formation Using Quantum Chemical Methods

Kai Ruusuvuori

New particle formation is an important process in the atmosphere. As ions are constantly produced in the atmosphere, the behaviour and role of charged particles in atmospheric processes needs to be understood. In order to gain insight on the role of charge in atmospheric new particle formation, the electron structure of the molecules taking part in this process needs to be taken into acc...

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Public examination: 6.2.2015

Pain and associated procedural anxiety in adults undergoing bone marrow aspiration and biopsy : Therapeutic efficacy and feasibility of various analgesics

Anna-Maria Kuivalainen

Background: Bone marrow aspiration and/or biopsy (BMAB) is a procedure used to diagnose and follow up various haematological diseases. It is usually performed at either the sternum or the iliac crest. The procedure often causes pain despite local infiltration anaesthesia. The objective of this study was to evaluate different means of pain relief during BMAB in adult patients. Special att...

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Public examination: 7.2.2015

Finnish expatriates' adaptation to a multicultural environment

Johanna Saarentalo-Vuorimäki

This study addresses Finnish expatriates adaptation to a multicultural environment. The study focuses on the role of individual values and empathy in adaptation, using Van Oudenhoven and Van der Zee s (e.g., 2000) work on the multicultural personality as the frame of interpretation. The target group were Finnish expatriates and expatriate spouses (N=52) in Brussels. The method used was c...

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Public examination: 7.2.2015

Urban Tourism in Istanbul: Urban Regeneration, Mega-events and City Marketing and Branding

Ülke Evrim Uysal

This thesis analyses urban tourism in Istanbul from the point of view of urban studies. Urban tourism is analysed by examining urban regeneration, mega-events and city marketing and branding and the impacts of these in the city of Istanbul between 2007 and 2011. The main argument of the thesis is the following: urban tourism is a complex phenomenon that is not limited to the business of ...

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Public examination: 7.2.2015

Aspects of spectator fields in post-inflationary resonant particle production

Stanislav Rusak

Grounded in the increasingly accurate astronomical observations of the past few decades, the study of cosmology has produced a comprehensive account of the history of the universe. This account is contained in the Hot Big Bang cosmological model which describes the expansion of a hot and dense state to become the universe as we observe it today.

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Public examination: 11.2.2015

Effect of Surface Chemistry on the Immune Responses and Cellular Interactions of Porous Silicon Nanoparticles

Mohammad-Ali Shahbazi

Porous silicon nanoparticles (PSi NPs) have recently drawn increasing interest for therapeutic applications due to their easily modifiable surface, large pore volumes, high surface area, nontoxic nature, and high biocompatibility. Nevertheless, there is no comprehensive understanding about the role of the surface chemistry of these NPs on the biological interactions and the therapeutic e...

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Public examination: 13.2.2105

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Mesotopografian ja geomorfologian vaikutukset kasvillisuuden beta-diversiteettiin arktis- alpiinisessa ympäristössä

Mäkinen, Jussi / 27.01.2015

Mesotopografian ja geomorfologian vaikutukset kasvillisuuden beta-diversiteettiin arktis- alpiinisessa ympäristössä Mäkinen, Jussi Species composition of a local habitat is a sample of regional species pool. Stress and disturbance define the environmental conditions and control the vegetation on the local scale. The variation of stress and disturbance inside a region control fluctuations...

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The environmental impacts of oil shipping and offshore wind power at the eastern Gulf of Finland – A Bayesian approach to marine spatial planning

Helle, Aino / 27.01.2015

The environmental impacts of oil shipping and offshore wind power at the eastern Gulf of Finland – A Bayesian approach to marine spatial planning Helle, Aino The seas and oceans are the scene of multiple human actions, all of which cause pressures on the marine environment. Marine spatial planning (MSP) systematizes the evaluations of the spatial impacts of the human actions and take int...

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Tree species diversity estimation using airborne imaging spectroscopy

Schäfer, Elisa / 27.01.2015

Tree species diversity estimation using airborne imaging spectroscopy Schäfer, Elisa With the ongoing global biodiversity loss, approaches to measuring and monitoring biodiversity are necessary for effective conservation planning, especially in tropical forests. Remote sensing is a very potential tool for biodiversity mapping, and high spatial resolution imaging spectroscopy allows for d...

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Toiseus ja autenttisuus vetovoimatekijöinä petoeläinten piilokatselussa

Kyytsönen, Tiina / 27.01.2015

Toiseus ja autenttisuus vetovoimatekijöinä petoeläinten piilokatselussa Kyytsönen, Tiina Tutkimuksen tarkoitus on tehdä tilannekatsaus siitä, mitä piilokojukatselu on, ketä se houkuttelee ja mikä siinä houkuttelee. Piilokojukatselussa petoeläinten houkutteleminen näkö- ja valokuvausetäisyydelle perustuu ruokintaan. Toiminta keskittyy erityisesti ruskeakarhuun, mutta myös suteen sekä ahma...

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