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  • Mikkola, Jemina (2022)
    Tämä tutkielma käsittelee efektiivistä altruismia elämäntapaliikkeenä (lifestyle movement). Efektiivinen altruismi on liike, joka pyrkii löytämään tehokkaimmat tavat tehdä hyvää maailmassa. Tavallisimmat tavat harjoittaa efektiivistä altruismia ovat tehokkaiksi määriteltyihin hyväntekeväisyyskohteisiin lahjoittaminen tai yhteiskunnallisesti vaikuttavan työn tekeminen. Elämäntapaliikkeessä yhteiskunnalliseen muutokseen pyritään jokapäiväisessä elämässä tapahtuvien valintojen kautta. Toiminta on yksilöllistä ja arkeen nivoutuvaa ja henkilökohtainen identiteetti on tärkeä motivoiva tekijä. Tutkielman tavoitteena oli selvittää, millainen elämäntapaliike efektiivinen altruismi on efektiivisten altruistien omassa kokemuksessa ja millainen merkitys sillä on heille. Tutkimuskysymys oli, millaisena efektiivinen altruismi näyttäytyy sitä harjoittavien ihmisten elämässä. Aineisto koostuu kahdeksasta puolistrukturoidusta teemahaastattelusta ja Effective Altruism Helsinki -järjestön puheenjohtajan kanssa käydystä haastattelusta. Aineistomenetelmä oli teoriasidonnainen sisällönanalyysi. Analyysissa käytettiin Haenflerin, Johnsonin ja Jonesin luomia elämäntapaliikkeen kriteerejä kehikkona efektiivisen altruismin tarkastelulle. Haastateltujen toiminta oli elämäntapaliikkeille tyypilliseen tapaan yksilöllistä. Haastatellut mielsivät tärkeimpien tekojensa tapahtuvan EA Helsingin ulkopuolella. Efektiivisen altruismin yhteisön tehtävä oli toimia lähinnä vertaistukena. Haastateltujen pääasialliset tavat toteuttaa efektiivistä altruismia olivat lahjoittaminen ja opiskelu efektiivisen altruismin mukaisen työuran toivossa. Kukaan työssäkäyvistä haastatelluista ei ollut kuitenkaan löytänyt efektiivisen altruismin tehokkaan hyvän tekemisen standardien mukaista työpaikkaa. Efektiivisen altruismin tavoitteiden toteuttaminen on myös jatkuvaa ja jokapäiväiseen elämään nivoutuvaa, erityisesti koska myös opiskelu ja työura nähdään välineinä tehdä mahdollisimman paljon hyvää. Monet haastatellut lahjoittivat säännöllisesti hyväntekeväisyyskohteisiin ja kuluttivat puolestaan vähemmän rahaa harrastuksiin ja ylellisyystuotteisiin. Monet käyttivät vapaa-aikaa efektiiviselle altruismille relevanttien teemojen opiskeluun. Jotkut haastatellut tarkastelivat melkein kaikkia elämänalueitaan efektiivisen altruismin näkökulmasta, kun taas toisille efektiivinen altruismi oli rajatumpaa. Efektiiviseen altruismiin liittyi myös identiteettityötä. Haastatellut pyrkivät eheään moraaliseen identiteettiin toimimalla arvojensa mukaisesti. Kuten monissa muissakin elämäntapaliikkeissä efektiivisen altruisminkin piirissä vastuu yhteiskunnallisesta muutoksesta on yksilön harteilla, mikä aiheuttaa helposti paineita. Useimmat haastatellut kertoivat jonkinlaisista paineiden kokemuksista tai vaikeuksista määritellä rajaa sille, minkä verran käyttää aikaa ja resursseja efektiivisen altruismin tavoitteisiin. Siinä missä monissa elämäntapaliikkeissä ristiriidaton moraalinen identiteetti, arvojen ja toiminnan sopusointu, voi olla jopa toiminnan yhteiskunnallisia vaikutuksia tärkeämpää, efektiivisessä altruismissa pyrkimys ristiriidattomaan moraaliseen identiteettiin on kietoutunut mahdollisimman tehokkaan yhteiskunnallisen vaikutuksen tavoitteluun. Yhteiskunnalliseen muutokseen pyritään yksilöinä, mikä mahdollisesti osittain selittää monen haastatellun mainitsemat paineen ja riittämättömyyden tunteet. Elämäntapaliikkeissä epäonnistuminen liikkeen tavoitteissa koetaan samalla usein myös henkilökohtaiseksi moraaliseksi epäonnistumiseksi. Toisaalta se, miten efektiivisen altruismin toteuttaminen nivoutuu jokapäiväiseen elämään ja lisää tiedostavuutta sen suhteen, voi tuoda arkisiin velvollisuuksiin uuden ulottuvuuden. Kun jokapäiväiset tai muutenkin pakolliset tehtävät nähdään välineinä nykyisten ja jopa tulevien sukupolvien elämän parantamiseen, ne saavat syvempää merkitystä.
  • Ruoho, Veera (2019)
    It is widely seen that fragile states and prolonged crises cause poverty, violence and also migration as a strategy for survival. However, international interventions by development cooperation and by crisis management missions have been ineffective to provide security and possibilities for sustainable development. The comprehensive crisis management, too, has remained ineffective to respond such challenges. The purpose of this Master's thesis is to contribute for the discussion of developing comprehensive crisis management to make it more efficient in creating sustainable development and peace in crisis areas. For this reason, this qualitative study wanted to clarify the perceptions of Finnish foreign and security policy expert politicians on crisis management in its entirety. In particular, aspects of civilian crisis management and development cooperation were examined as part of comprehensive crisis management and security framework. Empirical research was conducted in the Finnish Parliament and the Ministry for Foreign Affairs between August 2017 and January 2018. 22 MPs were interviewed for the study. The theme analysis was used to identify critical ideas in the interview material. Besides, the study utilized hermeneutic phenomenology. The method of observation was the long-term experience of the investigator in civilian crisis management operations, as well as the membership of the foreign affairs committee in 2015 - 2017. According to the nuanced results, security thinking has become pervasive. Finnish crisis management is based on the experience and expertise of the long history of Finnish peacekeeping and core competencies. Civilian crisis management requires a more prominent role in a comprehensive crisis management approach, which should also be taken into account in financing decisions. The results also showed that the promotion of human security is an essential element of development cooperation and civilian crisis management. An important policy is to focus on the most vulnerable people. Education, access to health services and gender equality were highlighted as ways to achieve sustainable development in crisis areas. Regionally the focus should be in Africa. The synergies between the various instruments of comprehensive crisis management should be better exploited. The results can be useful for those responsible for the Finnish crisis management in the development of a comprehensive crisis management.
  • Böling, Alina (2016)
    After a legislative process that lasted nearly a decade, the Directive 2014/104/EU on antitrust damages actions was adopted in 2014. Although it being proposed by both the Green and White papers preceding the Directive, the Commission decided not to include collective redress as a part of its final proposal. This study focuses on answering the question whether a class action instrument would benefit and ensure the effective application of the Directive on antitrust damages actions. The study outlines what characteristics such an instrument would need to have in order to serve the purposes of the Directive as well private enforcement of EU competition law in general. To answer these questions, the study combines the methods of legal dogmatics and normative theory of regulation. The need for competition law damages actions in the EU has by the ECJ been motivated with the need to ensure full effectiveness of EU law. The Commission has seen actions for damages as a supplementary mean of enforcement. At the same time, there is a right of all harmed individuals to claim compensation and one of the central principles in the Directive on antitrust damages actions is the right to full compensation. Taking into account the principles of effectiveness and equivalence it is motivated that member states undertake measures that grant all victims with the right to claim and obtain full compensation access to court. The fact that all victims, including indirect purchasers and victims of umbrella pricing can claim damages lead to that damages will be widely dispersed and pulverized. This creates a need for class actions. Class actions can be used both for regulatory purposes and creating access for justice for individual claims that would otherwise not end up in front of a court. The study gives an outline of these functions as well as different models of class actions and other collective actions. The study examines collective redress in three member states, where the potential functions of class actions have been made use of in different ways. The potential to use these instruments for competition law damages actions differ. The different conditions in regard to class actions in the EU impede the objective of the Directive to harmonize the conditions for actions for damages. The study assesses whether there is a need for class actions in the field of damages actions for competition law infringements, as well as whether class actions are suitable regulatory instruments for achieving the purposes of private enforcement. Welfare effects, the need for compensating consumers and other potential victims as well as the potential of class actions to create settlements are examined. In addition, the risks of overenforcement and undermining leniency are briefly discussed. The study concludes that a suitable class action instrument for claiming antitrust damages in the EU framework would be an opt-in instrument. In order to enable cases to actually be brought in front of national courts, there is a need for certain flexibility in regard to standing and financing. It is motivated to introduce mechanisms that lower the threshold for individuals themselves to exercise their right to claim and obtain full compensation. At the same time, the competition law enforcement landscape in the EU is not in need of deterrence created by mandatory class actions.
  • Vihko, Sami Vihko (2022)
    We will review techniques of perturbative thermal quantum chromodynamics (QCD) in the imaginary-time formalism (ITF). The Infrared (IR)-problems arising from the perturbative treatment of equilibrium thermodynamics of QCD and their phenomenological causes will be investigated in detail. We will also discuss the construction of two effective field theory (EFT) frameworks most often used in modern high precision calculations to overcome these. The EFTs are the dimensionally reduced theories EQCD and MQCD and Hard thermal loop effective theory (HTL). EQCD is three-dimensional Euclidean Yang-Mills theory coupled to an adjoint scalar field and MQCD is three-dimensional Euclidean pure Yang-Mills theory. The effective parameters in these theories are determined through matching calculations. HTL is based on resummation of hard thermal loops and uses effective propagators and vertex functions. We will also discuss the determination of the pressure of QCD perturbatively. In general, this thesis details calculations and the methodology.
  • Savolainen, Elina (2023)
    Climate change is one of the biggest challenges our planet and humanity are experiencing. The time window for finding ways to miti-gate carbon emissions is getting smaller and there is an urgent need to find solutions that aim not only to reduce greenhouse gas (GHG) emissions, but to address the complex problems of land use change, deforestation, loss of biodiversity, and inequality. REDD+ is a multi-objective initiative under UNFCCC designed to reduce GHG emissions through deforestation and forest degradation togeth-er with non-carbon co-benefits of livelihoods, poverty, biodiversity, and local peoples and indigenous peoples rights. By applying a Qualitative comparative analysis (QCA) this thesis compares 12 various REDD+ countries national political contexts and particularly REDD+ policies and measures over time in order to identify conditions that enable or hinder the countries from achieving results in reversing forest cover trajectories. All the countries analyzed here are tropical, developing, or emerging countries with a political commitment to REDD+ with characteristics that hinder carbon-effective, cost-efficient, and equitable (3E) implementation of REDD+. The thesis builds on three previous REDD+ qualitative comparative analyses of various REDD+ countries' progress in developing and implementing national REDD+ policies and measures. The analysis follows an underlining theoretical assumption that both insti-tutions and agencies affect the REDD+ policy outcome. The longitudinal data used in the analysis is based on expert assessments conducted in three various data collection rounds in 2012, 2014, and 2016. The results show a set of enabling conditions under which countries can achieve a positive outcome. The findings from the previous studies have highlighted the importance of already initiated policy change and effective forest legislation from the institutional context, and from the actor-centered policy arena, the presence of powerful coalitions and the availability of performance-based payments. Here, two enabling remote conditions are identified (1) pressure from the forest resources and (2) the presence of effective forest legislation. The pressure from the forest resources leads to a positive outcome together with (3) strong national ownership and politi-cal will combined with (4) performance-based payments or (5) REDD+ policies and measures. The effective forest legislation.leads away from business-as-usual practices towards a broader transformational change when combined with (6) powerful transformation-al coalitions and (7) inclusive policy processes. Policy relevance: Well over a decade has passed since REDD+ was launched in 2007 but the progress has been much slower than it was initially expected. The evidence on what works and what does not is essential to achieve the GHG reductions needed to keep the global warming below 2C. The findings from this study can guide towards more effective, efficient, and equitable REDD+ policy design formulation and implementation.
  • Räsänen, Hannele (2020)
    Nowadays, with the influence of global economy large corporations use global software development to utilise advantages of geographically decentralised organisations and global outsourced software development. Through distributed organisations the work can be done around the clock. Global software development is impacted by three distance dimensions: time distance, geographical distance, and socio-cultural distance, which all bring some challenges. At the same time agile way of working has become more and more popular method in software development. As agile practises are created for co-located teams there is a demand for having working online solutions for communication and collaboration in distributed teams. Corporations use scaled agile way of working to support software develop-ment of large initiatives and projects. Scaled Agile Framework (SAFe) is the most popular among the scaled agile methods. This thesis was conducted as a case study in a multinational corporation. Objective of the case study was to research effectiveness of scaled agile methodology SAFe on communication and collaboration in teams and agile release trains. The case study included two parts: a web-survey and interviews. The results of the analyses of the case study support findings from the literature in the field. The results indicate the importance of communication and collaboration in agile practices and the significance of the online tools that support it.
  • Närvänen, Eija (2020)
    Objective. The FRIENDS programme is a group cognitive behavioural therapy (CBT) programme, developed for the prevention and treatment of child and adolescent anxiety and depression. In the context of prevention, FRIENDS has been extensively researched; however, little research has been conducted on FRIENDS in a treatment setting and with different populations. To help fill this gap, the aim of the present study was to evaluate the effectiveness of the Finnish version of FRIENDS in reducing internalising symptoms in children diagnosed with psychiatric and neuropsychiatric disorders. Methods. The present study was conducted at Helsinki University Hospital (HUS) Child Psychiatry outpatient clinics in the Helsinki metropolitan area, Finland. The participating children (n = 99, mean age = 9.45 years, range 6–13 years, 68.7 % boys) were randomly assigned to either FRIENDS (n = 52) or a waitlist control group (n = 47), which received treatment as usual for a period of 3 months before the intervention. The children’s internalising symptoms were assessed using parent- and teacher-report questionnaires (Child Behavior Checklist and Teacher’s Report Form) at referral to treatment, pre-treatment, post-treatment, and six-month follow-up. Results and conclusions. In both groups, there was a medium-sized statistically significant decrease in parent-reported internalising symptoms immediately after the intervention; however, these improvements were not retained at six-month follow-up. Teacher-reported internalising symptoms followed a similar pattern of decrease during the intervention and increase during follow-up; however, these changes were smaller in magnitude and did not reach statistical significance, possibly due to loss of statistical power caused by missing data. Neither parent- or teacher-reports showed an intervention effect, with children’s internalising symptoms exhibiting similar changes regardless of whether they belonged to the intervention group or the waitlist control group, which received treatment as usual during the wait period. These results raise questions on the durability of treatment effects and the superiority of FRIENDS over active waitlist control conditions or treatment as usual when treating children diagnosed with diverse psychiatric and neuropsychiatric disorders in a community setting where treatment adherence and integrity may not be ideal.
  • Saxen, Niklas (2014)
    This paper studies post-conflict peacebuilding in relation to non-state armed groups, notably insurgencies. Peacebuilding in general refers to long-term policies that have as their end-goal a just and self-sustaining peace. The view taken of peacebuilding here is state-centered: strengthening a legitimate and accountable state is the best way to protect individuals. The focus is on outside intervention. Also, security is a key concept. The framework advances by 1.) analysing the nature of the problem and the main security threats to peace posed by non-state armed groups, and 2.) examines the current policy-options to these problems, and sees what is effective and what is problematic. The assumption is that there is a common model of peacebuilding, that is not necessarily effective. This is referred to as 'rule-of-thumb peacebuilding. This paper uses literature review as its methods. A number of different types of sources were chosen: theoretical literature on conflicts and peacebuilding including statistical and qualitative research, articles by authoritative experts on each subject, policy handbooks by experts, lessons learned reports, as well as commissioned evaluations. Non-state armed groups are analyzed through their means (capacity) and end-goals. Gangs, organized crime, paramilitary groups, private military companies and insurgencies are examined. While all of these contest the monopoly of violence of the state, only insurgencies pose an existential threat both with respect to its means and end-goals. Yet one of the central findings is that non-state armed groups today have converging interests, and thanks to globalization new weaker but more resilient forms of insurgency emerge relatively easily. These groups can have an interest in the continuation of conflict. Of the different policy-option, I analyze DDR, conflict resolution methods, monitoring, arms control measures, sanctions, counterinsurgency and the pros and cons of interventions in general. Generally, policies could be differentiated between ones that focused on the existing armed group, and ones that focus on changing the environment that enabled them to come about. Key problems found with the commonly applied methods of peacebuilding, or 'rule-of-thumb' peacebuilding, were related to power-sharing arrangements and elections, as well as the attention given to short-term results. Additionally, a longer presence of outside monitoring of the peace process would seem to enhance the sustainability of post-conflict peace. Finally, interventions themselves can also be problematic: they can spread corruption and weaken the connection between the government and the people.
  • Partanen, Reeta-Maria (2020)
    There is a naturally reproducing Atlantic salmon population in the River Teno in northern Norway and Finland. The Teno population has a strong population structure and up to 28 subpopulations have been recognized. Estimation of effective population size is important in conservation of the subpopulations. Effective population size tells about genetic variation of a population and is among the most important concepts in conservation genetics. In this study, current and past effective population sizes of 28 subpopulations were estimated from high density SNP-data for 1137 individuals in total. The estimation was done with the linkage disequilibrium method and the effects of using different assumptions were studied. Current estimated effective population sizes in subpopulations were generally low and ranged from around nine to 272 individuals. Only four populations had a current effective population size bigger than 50 individuals. Past effective population sizes showed a clear declining trend from the most distant generations in all populations. The choice between physical and linkage map as well as female, male or average linkage map had an effect to estimates. Also, different sample size corrections resulted in different estimates. Furthermore, effective population size was estimated with temporal method in three populations. It was detected that the estimates from temporal and linkage disequilibrium method were different from each other. The results of this study suggest that Teno Atlantic salmon subpopulations have declined over the past 150 generations and are in risk of losing genetic variation due to current low effective population size. This should be taken into account in conservation plans.
  • Fabritius, Henna (2010)
    Genetic variation is vital for both contemporary and long-term wellbeing of populations. Whereas heterozygosity (Ho) and allelic richness (A) are commonly used to measure the level of genetic diversity in a population, effective population size (Ne) describes the speed of loss of genetic variation. Various effective population sizes are proposed as standards for safe retention of genetic variation in a Minimum Viable Population (MVP). Since the 1940s, several types of effective population size estimators have been developed. Earlier estimators relied on demographic parameters, whereas genetic estimators are based on the analysis of either one or two genetic samples from a population. All Ne estimators have their unique sensitivities and limiting assumptions, which complicate the choice of estimator, comparison of results of different studies and the assessment of the reliability of the results. Ne estimators have recently been used e.g. in the monitoring of many aquatic populations, but their reliability and comparability has not often been tested with extensive ecological and genetic data, and it is not well established how much added value they bring to the conservation of easily observable species. I tested this with an extensive dataset on the Siberian jays (Perisoreus infaustus) living in Suupohja, Finland (62°22'N, 21°30'E). The Suupohja Siberian jays form one of the few isolates of Siberian jays in Southern Finland. I utilised three demographic and three genetic Ne estimators to estimate the Ne and the Ne/N ratio in the Suupohja Siberian jays, and compared the findings to the Ho and A estimates calculated with the same data, and to various suggested MVP standards. The results showed that the ratio of effective and census population sizes (Ne/N) is close to 0.6 in the Suupohja Siberian jays. Uneven survival of offspring and population size fluctuations are the main factors in the formation of this ratio. The average genetic Ne estimate would, then, suggest a census population size of 44 % higher than the average N in the Suupohja study area. This result is probably connected to the high proportion of breeding immigrants in the data, which would cause the Ne estimates to reflect a larger genetic neighbourhood than the study area. The genetic Ne estimates also suggest that the Suupohja Siberian jays might not be able to maintain their genetic diversity in the long term if gene flow would cease due to further isolation, especially if isolation would also cause a faster demographic decline. Conservation attempts should aim at ensuring gene flow to the remaining Siberian jay isolates in Southern Finland, in order to protect them from increasing genetic uniformity and inbreeding. It is possible that while the average dispersal distances in the Siberian jay are short, occasional long-distance dispersal events have an important role in the pretention of genetic structuring in a Siberian jay population. Ne estimation based on demographic data was laborious in the case of the Suupohja Siberian jays, whereas the genetic Ne estimates showed large variation depending on year and estimation method used. Reliable estimation of Ne with genetic methods would have required information on the large-scale genetic structure of the population. In any case, Ne estimates gave a clearer picture on the genetic viability of the Suupohja Siberian jays than the Ho and A estimates, which did not indicate any decrease of genetic diversity during the study period.
  • Özgür, Baykara (2015)
    The competitiveness in and of the internal market of the EU is one of the main objectives of the Treaty of the European Union. In the EU, private enforcement is seen as a complimentary mechanism of public enforcement to attain the goals of competition law policy. Following the publication of Regulation 1/2003, the private enforcement of EU competition law has gained steady pace for development. During the past decade multiple legal instruments have been produced by the EU legislators to facilitate actions for damages, however, with limited accuracy and clarity for the victims of competition law infringements. The latest legislative piece, the Damages Directive, does not provide harmonization of the procedures leading up to the quantification phase or the methods for quantification .The procedural elements of the actions for damages are greatly left to the discretion of the national courts as long as the application of the twin EU principles of effectiveness and equality are ensured. The lack of clear guidelines in these aspects of the damages actions often create ambiguity and contrasting outcomes in different member states. Furthermore, the interplay between the tasks assigned to EU competition law combined with the application of “concept of effectiveness” often puts the parties in confusing situations in the hands of the national courts. This study focuses on the possibility of a victim of competition law infringement to effectively bring an action for damages by demonstrating the shortcomings of the various elements of the claim process and assesses whether the legal instruments and applicable other sources of law provide sufficient relief for the claimants. Furthermore, the policy choices of the EU are assessed to their compatibility from the potential victim’s and defendant’s perspective. The methods of quantification, which is the last phase of the claim is also reviewed from both economic and legal perspective. regarding The claim friendliness of the processes is also reviewed through its application, which remains in the hands of recent national case law. The study concludes that the policy choices are the main reason behind the inefficiencies and that effective application of competition law can be found by a more concentrated approach between the deterrence and corrective tasks assigned to private enforcement and advises the claimants to pursue a number of procedural reliefs.
  • Martinmäki, Petri (2013)
    The main purpose of this master's thesis is to present experiences of test automation in an industrial case, and to make recommendations of the best practices for the case. The recommendations are based on successful test automation stories found from the existing literature. The main issues that are hindering test automation seem to be similar in the case example and in the literature. The cost of implementation and maintenance combined with unrealistic expectations are perceived in almost every project. However, in the most successful projects, they have put a lot of effort to plan and implement maintainable sets of automatic tests. In conclusion, the evidence from the literature shows that successful test automation needs investments - especially in the beginning of the project. A few specific best practices are adapted to the case project, and presented in the form that they could be applied.
  • Mäkelä, Ville (2022)
    With their ability to convert chemical energy to electrical energy through electrochemical reactions, rechargeable batteries are widely used to store energy in various applications such as electronic mobile equipment, aerospace aviation, road transportation, power grid, and national defense industry Numerous battery types are available commercially. Lithium ion-based batteries stand out due to several key advantages such as high operating voltage, high specific energy, and long cycle life. They also have a market dominance in a wide range of electric vehicles. However, like all battery technologies, lithium ion-based ones suffer from the effects of aging-induced degradation which can lead to reduced capacity, lifetime, and in some cases even safety hazards. One method of preventing/slowing down these aging reactions is to modify the standard battery materials by using dopants and additives. They are specific impurities purposely introduced into the battery during the manufacturing process. In this master’s thesis, the effect of additives (Mg/Al) on the aging of Li-ion cells was examined by using X-ray absorption spectroscopy, more specifically x-ray absorption near edge structure (XANES). For the experiment, 7 different cells, all containing lithium cobalt oxide as the major component (with 4 having a stoichiometric ration of Li/Co, and 3 being Li-rich), with 5 of them containing Mg/Al as dopants, and 2 containing no dopants were examined using XANES as a function of aging in terms of charge/discharge cycles. The dopants were introduced at different stages of the material preparation, either at the lithiation step or at the synthesis of the precursor. This thesis focuses on the XANES experiment and the data analysis, with extensive literature review on the topic of using additives and dopants. The cells were prepared by the Aalto University. The results showed that of the cells with dopant materials, the cells doped during lithiation stage aged slightly better after cycling than the undoped ones, whereas the cells doped during precursor stage aged worse than the undoped cells. This would suggest that doping might be more effective when done during the lithiation stage.
  • Lucendo Noriega, Alicia (2022)
    Objectives. The world population aged over 60 years is estimated to increase to 1.4 billion by 2030. This increasing trend evidences the current need for promoting healthy ways of living and aging. Previous research has studied music as a protective factor for several aspects in aging-associated neurological illnesses. This thesis aims at researching if healthy amateur choir singers and controls across age in adulthood differ in self-reported cognitive functions, social support and quality of life. It is hypothesized that amateur choir singers will report higher values of the three aspects mentioned above. Methods. Participants (N=93) were recruited from two general population groups, amateur choir singers (N = 54) and controls (N = 46), from 3 age groups split as follows: young adults: 20–39 years (N=34, mean = 29.79, SD = 5.65); middle-aged adults: 40–59 years (N=32, mean = 50.31, SD = 6.47); and older adults: 60–90 years (N=27, mean = 69.37, SD = 7.62). Outcome measures were questionnaires on quality of life (WHO-QOL-BREF), social support (Social Provisions Scale, SPS), cognitive functioning (Cognitive Failures Questionnaire, CFQ; Prospective and Retrospective Memory Questionnaire, PRMQ). Statistical analyses were performed with SPSS. Results and conclusions. The variable “total years of education” was included as a covariate when comparing the age groups, due to significant difference in the demographic pre-analysis. When studying the effects of amateur choir singing (choir vs controls), none of the results were significant. In comparing the three age groups (young, middle-aged, old), significant group differences were found in all the domains of theCFQ (cognitive failures) questionnaire except for Names, with young adults scoring higher (indicating more cognitive failures) than the middle-aged and older adults. A significant singing x age interaction was observed in all CFQ domains (except Names) as well as in the Reliable alliance subdomain of the SPS, with choir singers showing a more positive trend (less cognitive failures, more social support) across the age groups compared to the control group. These findings suggest a possible protective effect of amateur choir singing on subjective cognitive and social functioning in aging, which should be further studied.
  • Ribeiro Moreira de Assumpção, Christine (2017)
    Biochar is a product from the pyrolysis of plant derived-biomass and it is intended to be applied to soil given its potential of carbon sequestration and soil fertility improvement. Some studies also suggest that increasing application rate of biochar has a positive feedback on biological nitrogen fixation (BNF) and on soil microbial biomass. However, these effects are not well known for boreal forests. The purpose of this study was to evaluate the effects of different biochar application rates: 0 t ha-1, 5 t ha-1 and 10 t ha-1 on BNF, on microbial biomass carbon and nitrogen (MBC and MBN), and on moss biomass. The field experiment was established in Juupajoki, Southern Finland in young Scots pine stands. The stands were amended with biochar one year before the measurements took place. BNF was determined using acetylene reduction assay (ARA), and microbial biomass was estimated using chloroform fumigation-direct extraction (CFDE). The microbial biomass samples were incubated at the temperatures: 10 °C, 15 °C and 20 °C. Biochar amendment raised soil pH, whereas no differences were verified for BNF, MBC, MBN, nor for moss biomass. There was, however, variation in the response of N fixation to incubation temperature, and variation in the response of MBC and MBN to the time of measurement. Observed changes in pH are often likely to justify variations in the rates of BNF and MB, however in this study they were not shown to be of significance. It is possible, however that biochar will have a positive effect on soil vegetation as it is incorporated into the soil in the long-term. Although this study focuses on BNF and MB, the findings may well have a bearing on the use of biochar as a tool for C sequestration, since amendment with biochar was demonstrated as neither beneficial nor harmful to the soil biota.
  • Suorsa, Matti Valtteri (2017)
    In Finland, the spent nuclear fuel will be deposited at a depth of 400 m in the granitic bedrock. The disposal is based on KBS-3 concept, which relies on the multi-barrier principle, where different successive barriers prevent the migration of radionuclides to biosphere. The spent nuclear fuel is placed in the disposal tunnels in copper-iron canisters, which are surrounded by bentonite clay to insulate them from the groundwater flow and protect from the movements of the bedrock. Bentonite clay consists mainly of montmorillonite, which like the other aluminosilicates are known to retain radionuclides thus, contributing to the retention or immobilization of them. Besides the contribution to the multi-barrier system, the bentonite buffer is assumed to be a potential source of colloids due to the erosion of bentonite in certain conditions. Colloids in the context of radionuclide migration are nanoparticles in the size range from 1 to 1000 nm that remain suspended in water. The montmorillonite colloids could potentially act as carriers for otherwise immobile radionuclides like transuranium elements in the case of canister failure. Especially, 241Am is an important radionuclide regarding the long-term safety of the final disposal as after a few hundred years 241Am and its mother 241Pu contribute most to the radiotoxicity of the spent nuclear fuel. The relevance of the colloids to the long-term performance is depending on several factors like colloid stability, mobility and their interaction with radionuclides. The colloid stability is depending on the groundwater conditions like ionic strength and pH. In low salinity groundwaters, the montmorillonite colloids have been shown to be stable. On the other hand, the collective processes of the rock matrix, bentonite colloids and radionuclides have to be investigated to assess the long-term performance of the multi-barrier system. It requires the combination of the different scale experiments from the simple laboratory experiments to large, natural scale in-situ experiments to understand the complex processes affecting the colloid-facilitated radionuclide migration. The large-scale laboratory experiments conducted with granite blocks offer an intermediate between the two extremes having a more natural system than the former and a better controllability than the latter. In this study, the radionuclide migration was studied in different scale laboratory experiments. The colloid-facilitated transport of Eu was studied with a block-scale experiment using a granite block with a natural water conducting fracture. The suitability of the block was assessed by conducting several experiments using different non-sorbing and sorbing tracer and montmorillonite colloids separated from synthetic Ni-labeled montmorillonite and Nanocor PGN Montmorillonite (98 %). Laser-induced breakdown detection (LIBD), photon correlation spectroscopy (PCS) and ICP-/MP-OES were utilized in colloid detection. Supportive batch experiments were conducted to study the colloid stability in different ground waters and the interaction between the granite, different montmorillonite colloids and Eu, an analog to Am. Good reproducibility was obtained with non-sorbing tracers. The breakthrough of the radioactive 3H, 36Cl and fluoresceine and Amino-G dyes showed similar behavior. On the other hand, no breakthrough of montmorillonite colloids or 152Eu occurred. Based on the literature review, the low flow rates used could be the reason for this. Low flow rate (50 μl/min) could affect the colloid mobility strongly which could explain that Eu retained in the fracture. More experiments with higher flow velocities would be required. Different montmorillonite materials showed similar but not exact the same sorption behavior of Eu. The fraction of Eu attached to colloids decreased during the experiments and correspondingly the fraction attached to the granite increased. At the same time, colloids remained stable during the expertiments. This indicates that desorption of Eu from the colloids is taking place in the presence of granite. Also, the effect of different water composition on the stability of colloids was clearly seen on the preparation of colloid suspensions in different water simulants. Even a small increase in the ionic strength of the solution made the especially Ni-montmorillonite colloids instable.
  • Karim, Md Rezaul (2017)
    Peat lands are net sinks of carbon (C) and a net source of carbon dioxide (CO2) emissions owing to drainage during the growing season. The surface peat layer can be lost because of aerobic decomposition (oxidation) after drainage resulting in emissions of CO2. One way to reduce these emissions is to keep the water table at a high level as much as possible. The resulting anoxic conditions reduce the decomposition of organic matter and hence CO2 emissions. In the current Finnish agri-environmental scheme, the farmers may receive subsidies for controlled drainage on peatlands, and a raised ground water level through controlled drainage could be used as a greenhouse gas mitigation measure. This study reports the carbon balance of drained peatland under controlled drainage during the growing season in Mouhijärvi, Southwestern Finland. The CO2 fluxes measured with a transparent chamber method were divided into gross primary productivity (GPP) and ecosystem respiration (ER) for modelling based on environmental factors (light and temperature) and canopy reflectance (leaf area index, LAI). The GPP model estimates the effect of light and vegetation status, whereas the ER model captures the share of foliar biomass-dependent respiration and the ground water table. The sum of the study period (June–August 2016) GPP varied from -1301 to -670 g C m-2, ER from 632 to 1029 g C m-2 and net ecosystem exchange (NEE) from -322 to 68.5 g C m-2. NEE indicated a net sink of C in all plots except one with poor crop growth. The net ecosystem carbon balance (as the sum of NEE and carbon export as grains), indicated a net source of carbon in both plots with controlled drainage and a net sink in conventionally drained plots during the cultivation period. The greatest sink reported either as NEE or with the harvest included was the wettest plot, indicating that cereal production is possible in wetter than normal conditions.
  • Shrestha, Subhash (2019)
    SH3 domains are relatively short and most common of modular protein binding domain in eukaryotes. They are present in proteins that play critical role in various cell signaling and regulatory pathway. Human genome encoded 296 types of SH3 domains have been successfully displayed in phagemid using classical PelB signal sequence and used for finding novel binding partners. However, given its shorter length and tendency to fold rapidly it is useful to understand if signal sequence that directs SH3 translocation through Co translational pathway is much more efficient in displaying these domains than the one that translocate protein post translationally. For the study, PelB signal sequence of phagemid displayed human SH3 library was replaced with DsbA signal sequence using round the horn PCR method (Site directed mutagenesis) and verified with agarose gel electrophoresis. Subsequently, infective phages were prepared. The infective titer of newly generated DsbAss based library was found to be higher than that of PelBss based library. Both libraries normalized at 1 x1012cfu/ml were panned against known protein targets MC159(Molluscum contagiosum 159), NCF2(Neutrophil cytosolic factor 2) and NS1(Nonstructural protein 1). Enrichment with DsbAss library was moderately higher for each antigen. However sequencing results showed that results for proteins panned with PelBss library were congruent with previous finding whereas DsbAss library selected some potential weak binders and nonspecific ones along with strong binders. Panning results of DsbAss with NCF2 was striking as all clones selected were NCF1 SH3 domains. Although further functional study was not performed. Based on the study, we concluded that both libraries have its own advantage. PelBss based library can be used for finding strong binders while DsbAss based library can be used for studying weaker interaction and functional role of NCF2-NCF1 SH3 domain interaction is still an open question.
  • Tapper, Julius (2015)
    The role of decompressive craniectomy as a cure in traumatic brain injuries has been widely been discussed. Therefore our aim was to assess the independent effect of decompressive craniectomy the outcome and mortality of the patient. We conducted an open-cohort retrospective study on adult blunt TBI patients. Patients were divided into three groups; conservative treatment, acute craniotomy and mass lesion evacuation (craniotomy) and decompressive craniectomy. Outcome was assessed using Glasgow Outcome Scale and overall mortality six months after the operation. The adjusted multivariate analysis did not show an independent association between decompressive craniectomy and mortality. Decompressive craniectomy prooved to be an independent risk factor for poor neurological outcome with an OR of 3.06. In conclusion, operating TBI patients with decompressive craniectomy was found to be a life-saving intervention for patients who in other cases were destined to die. For stronger evidence this subject needs more research of a prospective type.
  • Saha, Sani (2021)
    Immunodeficiency in neonatal piglet is one of the major causes of pre-weaning mortality. Colostrum supply cytokines to newborn piglets, which play an important role in formation of their immune mechanism. This study aims to identify the relationship between sow’s blood and colostrum cytokines, and effect of resin acid-enriched composition (RAC) in sow’s blood and colostrum cytokines concentration. RAC is a plant extract of coniferous tree, and it is composed of resin acids and fatty acids which exert immunomodulatory function. Two experiments were conducted in two different farms where RAC was supplemented in the diet of late gestation sows, starting from one week before of expected farrowing date till farrowing. Multiplex immunoassay was used to determine the interferon alpha (IFN-α), interferon gamma (IFN-ɣ), interleukin 1 (IL-1), interleukin 10 (IL-10), interleukin 4 (IL-4), interleukin 6 (IL-6), interleukin 8 (IL-8), tumor necrosis factor alpha (TNF-α) and interleukin 12p40 (IL-12p40) cytokines concentration in blood and colostrum of sow collected within 2 hours of the birth of first piglets. There were significant (p < 0.05) positive correlations between sow’s blood and colostrum cytokines concentration. RAC-fed sows had significantly (p < 0.05) higher level of IL-1 and showed positive tendency (p = 0.1) to increase TNF-α cytokine level in blood. Colostrum level of IFN- ɣ, IL-1 and IL-12p40 had also positive tendency (p = 0.1) to rise in RAC supplemented sow. On this basis, it is proposed that application of RAC in late gestation sow diet enhance the cytokine production in sow’s blood, and blood cytokines levels are positively correlated with colostrum cytokines.