Measuring the Cosmic Microwave Background : Topics along the analysis pipeline

The first quarter of the 20th century witnessed a rebirth of cosmology, study of our Universe, as a field of scientific research with testable theoretical predictions. The amount of available cosmological data grew slowly from a few galaxy redshift measurements, rotation curves and local light element abundances into the first detection of the cos- mic microwave background (CMB) in 1965. By the turn of the century the amount of data exploded incorporating fields of new, exciting cosmological observables such as lensing, Lyman alpha forests, type Ia supernovae, baryon acoustic oscillations and Sunyaev-Zeldovich regions to name a few. -- CMB, the ubiquitous afterglow of the Big Bang, carries with it a wealth of cosmological information. Unfortunately, that information, delicate intensity variations, turned out hard to extract from the overall temperature. Since the first detection, it took nearly 30 years before first evidence of fluctuations on the microwave background were presented. At present, high precision cosmology is solidly based on precise measurements of the CMB anisotropy making it possible to pinpoint cosmological parameters to one-in-a-hundred level precision. The progress has made it possible to build and test models of the Universe that differ in the way the cosmos evolved some fraction of the first second since the Big Bang. -- This thesis is concerned with the high precision CMB observations. It presents three selected topics along a CMB experiment analysis pipeline. Map-making and residual noise estimation are studied using an approach called destriping. The studied approximate methods are invaluable for the large datasets of any modern CMB experiment and will undoubtedly become even more so when the next generation of experiments reach the operational stage. -- We begin with a brief overview of cosmological observations and describe the general relativistic perturbation theory. Next we discuss the map-making problem of a CMB experiment and the characterization of residual noise present in the maps. In the end, the use of modern cosmological data is presented in the study of an extended cosmological model, the correlated isocurvature fluctuations. Current available data is shown to indicate that future experiments are certainly needed to provide more information on these extra degrees of freedom. Any solid evidence of the isocurvature modes would have a considerable impact due to their power in model selection.

Medicalising Prohibition : Harm reduction in Finnish and International Drug Policy

The increase in drug use and related harms in the late 1990s in Finland has come to be referred to as the second drug wave. In addition to using criminal justice as a basis of drug policy, new kinds of drug regulation were introduced. Some of the new regulation strategies were referred to as "harm reduction". The most widely known practices of harm reduction include needle and syringe exchange programmes for intravenous drug users and medicinal substitution and maintenance treatment programmes for opiate users. The purpose of the study is to examine the change of drug policy in Finland and particularly the political struggle surrounding harm reduction in the context of this change. The aim is, first, to analyse the content of harm reduction policy and the dynamics of its emergence and, second, to assess to what extent harm reduction undermines or threatens traditional drug policy. The concept of harm reduction is typically associated with a drug policy strategy that employs the public health approach and where the principal focus of regulation is on drug-related health harms and risks. On the other hand, harm reduction policy has also been given other interpretations, relating, in particular, to human rights and social equality. In Finland, harm reduction can also be seen to have its roots in criminal policy. The general conclusion of the study is that rather than posing a threat to a prohibitionist drug policy, harm reduction has come to form part of it. The implementation of harm reduction by setting up health counselling centres for drug users with the main focus on needle exchange and by extending substitution treatment has implied the creation of specialised services based on medical expertise and an increasing involvement of the medical profession in addressing drug problems. At the same time the criminal justice control of drug use has been intensified. Accordingly, harm reduction has not entailed a shift to a more liberal drug policy nor has it undermined the traditional policy with its emphasis on total drug prohibition. Instead, harm reduction in combination with a prohibitionist penal policy constitutes a new dual-track drug policy paradigm. The study draws on the constructionist tradition of research on social problems and movements, where the analysis centres on claims made about social problems, claim-makers, ways of making claims and related social mobilisation. The research material mainly consists of administrative documents and interviews with key stakeholders. The doctoral study consists of five original articles and a summary article. The first article gives an overview of the strained process of change of drug policy and policy trends around the turn of the millennium. The second article focuses on the concept of harm reduction and the international organisations and groupings involved in defining it. The third article describes the process that in 1996 97 led to the creation of the first Finnish national drug policy strategy by reconciling mutually contradictory views of addressing the drug problem, at the same as the way was paved for harm reduction measures. The fourth article seeks to explain the relatively rapid diffusion of needle exchange programmes after 1996. The fifth article assesses substitution treatment as a harm reduction measure from the viewpoint of the associations of opioid users and their family members.

Social Networks and Everyday Practices in Russia

My doctoral dissertation in sociology and Russian studies, Social Networks and Everyday Practices in Russia, employs a "micro" or "grassroots" perspective on the transition. The study is a collection of articles detailing social networks in five different contexts. The first article examines Russian birthdays from a network perspective. The second takes a look at health care to see whether networks have become obsolete in a sector that is still overwhelmingly public, but increasingly being monetarised. The third article investigates neighbourhood relations. The fourth details relationships at work, particularly from the vantage point of internal migration. The fifth explores housing and the role of networks and money both in the Soviet and post-Soviet era. The study is based on qualitative social network and interview data gathered among three groups, teachers, doctors and factory workers, in St. Petersburg during 1993-2000. Methodologically it builds on a qualitative social network approach. The study adds a critical element to the discussion on networks in post-socialism. A considerable consensus exists that social networks were vital in state socialist societies and were used to bypass various difficulties caused by endemic shortages and bureaucratic rigidities, but a more debated issue has been their role in post-socialism. Some scholars have argued that the importance of networks has been dramatically reduced in the new market economy, whereas others have stressed their continuing importance. If a common denominator in both has been a focus on networks in relation to the past, a more overlooked aspect has been the question of inequality. To what extent is access to networks unequally distributed? What are the limits and consequences of networks, for those who have access, those outside networks or society at large? My study provides some evidence about inequalities. It shows that some groups are privileged over others, for instance, middle-class people in informal access to health care. Moreover, analysing the formation of networks sheds additional light on inequalities, as it highlights the importance of migration as a mechanism of inequality, for example. The five articles focus on how networks are actually used in everyday life. The article on health care, for instance, shows that personal connections are still important and popular in post-Soviet Russia, despite the growing importance of money and the emergence of "fee for service" medicine. Fifteen of twenty teachers were involved in informal medical exchange during a two-week study period, so that they used their networks to bypass the formal market mechanisms or official procedures. Medicines were obtained through personal connections because some were unavailable at local pharmacies or because these connections could provide medicines for a cheaper price or even for free. The article on neighbours shows that "mutual help" was the central feature of neighbouring, so that the exchange of goods, services and information covered almost half the contacts with neighbours reported. Neighbours did not provide merely small-scale help but were often exchange partners because they possessed important professional qualities, had access to workplace resources, or knew somebody useful. The article on the Russian work collective details workplace-related relationships in a tractor factory and shows that interaction with and assistance from one's co-workers remains important. The most interesting finding was that co-workers were even more important to those who had migrated to the city than to those who were born there, which is explained by the specifics of Soviet migration. As a result, the workplace heavily influenced or absorbed contexts for the worker migrants to establish relationships whereas many meeting-places commonly available in Western countries were largely absent or at least did not function as trusted public meeting places to initiate relationships. More results are to be found from my dissertation: Anna-Maria Salmi: Social Networks and Everyday Practices in Russia, Kikimora Publications, 2006, see www.kikimora-publications.com.

Women and Marital Breakdown in South India : Reconstructing Homes, Bonds and Persons

Women and Marital Breakdown in South India: Reconstructing Homes, Bonds and Persons is an ethnographic analysis of the situation of divorced and separated women and their families in the South Indian city of Bangalore. The study is based on 16 months of anthropological fieldwork, i.e., participant observation and life history interviews among 50 divorced and separated women from different socio-religious backgrounds in their homes, in the women s organisations and in the Family Court. The study follows the divorced and separated women from their natal homes to their affinal homes through homelessness and legal battles to their reconstructed natal, affinal or single homes in order to find out what it means to be a person within hierarchical gender and kinship relations in South India. Marital breakdown impacts on kin relations and discloses the existing gender relations and power structure through its consequences. It makes the transformability of relational personhood as well as the transformability of relational society and culture visible. Although the study reveals the painful history of women s ill-treatment in marriage, family and kinship systems, it also demonstrates the women s rejection of the domination; and shows their ability to re-negotiate and promote changes not only to their own positions but to the whole hierarchical system as well. The study explores the divorced and separated women s manifold dilemmas, complicated legal battles, and endless arrangements when they have to struggle with the very practical problems of supporting themselves financially, finding and making a new home for themselves, and re-arranging relationships with their kin and friends. As marital breakdown fundamentally transforms the women s relational field, it forces them to recreate substitutive relations in a flexible way and, simultaneously, to re-construct themselves and their lives without a ready or positive cultural or behavioural template. This process reveals the agency of the divorced and separated women as well as shedding light on issues of gender and the cultural construction of the person in South India. This topical study explores the previously neglected subject of marital breakdown in India and shows the new meaning of kinship in South India.

Canopy processes, fluxes and microclimate in a pine forest

Interaction between forests and the atmosphere occurs by radiative and turbulent transport. The fluxes of energy and mass between surface and the atmosphere directly influence the properties of the lower atmosphere and in longer time scales the global climate. Boreal forest ecosystems are central in the global climate system, and its responses to human activities, because they are significant sources and sinks of greenhouse gases and of aerosol particles. The aim of the present work was to improve our understanding on the existing interplay between biologically active canopy, microenvironment and turbulent flow and quantify. In specific, the aim was to quantify the contribution of different canopy layers to whole forest fluxes. For this purpose, long-term micrometeorological and ecological measurements made in a Scots pine (Pinus sylvestris) forest at SMEAR II research station in Southern Finland were used. The properties of turbulent flow are strongly modified by the interaction between the canopy elements: momentum is efficiently absorbed in the upper layers of the canopy, mean wind speed and turbulence intensities decrease rapidly towards the forest floor and power spectra is modulated by spectral short-cut . In the relative open forest, diabatic stability above the canopy explained much of the changes in velocity statistics within the canopy except in strongly stable stratification. Large eddies, ranging from tens to hundred meters in size, were responsible for the major fraction of turbulent transport between a forest and the atmosphere. Because of this, the eddy-covariance (EC) method proved to be successful for measuring energy and mass exchange inside a forest canopy with exception of strongly stable conditions. Vertical variations of within canopy microclimate, light attenuation in particular, affect strongly the assimilation and transpiration rates. According to model simulations, assimilation rate decreases with height more rapidly than stomatal conductance (gs) and transpiration and, consequently, the vertical source-sink distributions for carbon dioxide (CO2) and water vapor (H2O) diverge. Upscaling from a shoot scale to canopy scale was found to be sensitive to chosen stomatal control description. The upscaled canopy level CO2 fluxes can vary as much as 15 % and H2O fluxes 30 % even if the gs models are calibrated against same leaf-level dataset. A pine forest has distinct overstory and understory layers, which both contribute significantly to canopy scale fluxes. The forest floor vegetation and soil accounted between 18 and 25 % of evapotranspiration and between 10 and 20 % of sensible heat exchange. Forest floor was also an important deposition surface for aerosol particles; between 10 and 35 % of dry deposition of particles within size range 10 30 nm occurred there. Because of the northern latitudes, seasonal cycle of climatic factors strongly influence the surface fluxes. Besides the seasonal constraints, partitioning of available energy to sensible and latent heat depends, through stomatal control, on the physiological state of the vegetation. In spring, available energy is consumed mainly as sensible heat and latent heat flux peaked about two months later, in July August. On the other hand, annual evapotranspiration remains rather stable over range of environmental conditions and thus any increase of accumulated radiation affects primarily the sensible heat exchange. Finally, autumn temperature had strong effect on ecosystem respiration but its influence on photosynthetic CO2 uptake was restricted by low radiation levels. Therefore, the projected autumn warming in the coming decades will presumably reduce the positive effects of earlier spring recovery in terms of carbon uptake potential of boreal forests.

Luottamus koulussa : Tutkimus yhdeksännen luokan oppilaiden luottamus- ja epäluottamuskertomuksista ja niiden merkityksestä oppilaiden kouluarjessa

The aim of this study is to explore trust at school and its meaning for 9th grade students. The intent is to investigate students views about trust and mistrust in school relationships. Three research questions are posed: 1) what meanings do students give to their experiences of trust and mistrust at school and how do they evaluate connection of these experiences to their well-being and enjoyment in the classroom? 2) what and how important, is the teacher s role according to the students writings, and 3) what might the different pedagogical and administrative structures of schools reveal about trust and mistrust in a particular school culture? The data consists of 134 writings of 9th grade students (secondary school) from three schools in one of the biggest cities in Finland. The schools differ from others in terms of their pedagogical or structural backgrounds. The study is restricted to the micro-level of, disposition of Educational Sociology, focusing on trust in schools relationships. The theoretical framework of the study is trust, as a part of social capital; however trust is also approached from the sociological, the psychological and philosophical perspective. The methodological approach is narrative research concerning school practice . Analysis of narrative consist mostly content analysis, but also some elements of holistic-content reading, thematic reading and categorical content. The analysis found three main themes: 1) individual stories of trust, 2) the teachers role in making trust possible in the classroom, and 3) school as a community of trust. According to the study trust at school (1) is a complex phenomenon consisting of people s ability to work together and to recognize the demands that different situations present. Trust at school is often taken for granted. In the students experiences trust is strongly connected to friendship, and the teacher s ability to connect with students. Students experiences of mistrust stem from bulling, school violence, lack of respect as well as teachers lacking basic professional behavior. School relationships are important for some students as source of enjoyment, but some feel that it is difficult to evaluate the connection between trust and enjoyment. The study found that students trust of teachers (2) is linked to the teacher s professional role as a teacher, a caring human being open to dialogue. In other words, the students describe teachers abilities to create a sense of trust in terms of three expectations: the teacher was better, the same or worse than expected. Better than expected, means the teacher engender a high degree of trust and has excellent communication skills. Same as expected means the teacher comes across as familiar and secure, while lower than expected means the teacher creates no trust and has poor communication skills. Finally, it was shown that trust at school (3) should not only exist between some individuals, but between (all) members of the school community. In other words, according to the study there is some evidence that trust is strongly committed to school culture. Further, trust seems to depend on (school-) cultural background, values, beliefs, expectations, norms as well as staff behaviour. The basic elements of an optimum level of trust at school are favourable school structure and pedagogical background; however, good relationships between teachers and students as well as high professional skills are also needed. Trust at school is built by good communication, working together and getting to know each other.

Oppilaan interkulttuurisuus ja asennoituminen englannin kielen opiskeluun kaksikielisellä luokalla

The purpose of this research was to study the bilingual class students attitudes toward schoolwork, studying in English and their attitudes toward ethnic diversity. Bilingualism has been shown to promote a person s cultural knowledge and to increase one s cultural tolerance. Also, it has been proven that young people are among the most receptive toward ethnic diversity. Students in bilingual classes have often lived abroad, travelled extensively, or have had contacts with different cultures through their parents work. This thesis seeks to clarify whether bilingualism has an effect on lower and upper graders intercultural competence. Also, it seeks to determine what the students think about their English language skills and what their abilities are to tolerate cultural differences. The research was carried out in one of Espoo Finland schools grades 4 to 9 in December 2008. One hundred fourteen (114) students participated in the research. Students answered the questions on a form where they were asked to submit their background information and answer which language they prefer in studying the school subjects. Students were also asked to choose from 18 pictures with ethnically different persons, telling which ones could be their friends and which ones they wished not to meet, as well as stating the reasons why. Also, the students answered to Likert-scale questions concerning their English studies and interculturalism. The data has been processed with qualitative and quantitative methods. The results show that the study language is not significant. Most of the students experienced studying in a bilingual class as a positive thing, and thought highly about their English skills. The students positive attitudes toward ethnic diversity and intercultural sensitivity were present in their answers. Tolerance and intercultural competence was especially noticeable in the written explanations by the older students.

"Ni sit mä tajusin, et on muitakin kuin minä" : Suomenuskoisten sosiaalinen identiteetti

Työ on uskontososiologian tutkimusalaan lukeutuva laadullinen tapaustutkimus, joka perustuu argumentatiiviseen haastatteluaineistoon ja sosiaalisen identiteetin teoriaan. Tutkimuskysymys liittyy sosiaalisen identiteettiin. Miten suomenuskoinen hahmottaa oman yhteisönsä ja sen jäsenyyden? Mitä merkitystä yhteisöllä on suomenuskoiselle? Tutkimuksen aihepiiri on suomalainen uuspakanuus ja sen eräs suuntaus, suomenusko. Työn eräänä tarkoituksena on määritellä suomenuskon käsitettä ja sijoittaa suomenuskoinen suuntaus nykyajan suomalaisen uuspakanuuden kentälle. Hypoteesin mukaan suomenusko on uusiin uskontoihin lukeutuva uuspakanallinen liike. Se kuuluu ásatrún tavoin etnopakanuuden luokkaan, eli kansallisista muinaisperinteistä inspiraationsa ammentaviin suuntauksiin. Suomenuskolle on omalaatuista esikristillisten suomalaisten uskontoperinteiden sekä suomalaisen kansanuskon korostaminen lähteinä. Suomenuskon muut ominaispiirteet vastaavat tyypillistä uuspakanuutta: Luonnon ja perinteiden kunnioitus sekä epädogmaattisuus ja tasavertaisuus ovat keskeisiä arvoja. Työ tehtiin puolistrukturoituna haastattelututkimuksena. Seitsemää suomenuskoista haastateltiin laadullisen asennetutkimuksen menetelmän mukaisesti. Menetelmä on uudehko ja kiinnostava. Se perustuu argumentatiivisen haastatteluaineiston tuottamiseen väittämäkorttien avulla. Analyysissä haastatteluaineistosta paikannetaan asenteita, eli subjektin ilmaisemaa jonkin kohteen arvottamista. Asenteista pyrittiin löytämään ulkoryhmiin kohdistuvia vertailuja ja retorisia erottautumisia. Työn teoreettisena tukirankana on Henri Tajfelin ja John C. Turnerin kehittämä sosiaalisen identiteetin teoria. Teorian mukaan sosiaalista identiteettiä on mahdollista tutkia ainoastaan sosiaalisten ryhmien keskinäisen vertailun asetelmassa. Omia sisäryhmiä vertaillaan aina ulkoryhmiin siten, että oma ryhmä näyttäytyy voittajana. Tämä takaa yksilölle myönteisen omanarvontunnon. Karmela Liebkindin mukaan vähemmistöryhmät vertailevat itseään valtakulttuurin enemmistöryhmiin. Heikki Pesosen ja Elina Huhdan mukaan vähemmistöuskonnot pyrkivät oikeuttamaan omaa uskontoaan tekemällä omalle ryhmälle suotuisia vertailuja. Tutkimuksessa havaittiin haastateltavien tekemiä retorisia erottautumisia ulkoryhmistä sekä heidän ilmaisemiaan asenteita, jotka liittyvät suomenuskoisten sisäryhmän dynamiikkaan. Tulosten perusteella haastatellut suomenuskoiset erottautuvat ryhmänä muusta uuspakanuudesta ja vielä selvemmin New Agesta ja satanismista, jotka eivät ole uuspakanuutta. Lisäksi haastateltavat korostavat eroa dogmaattisiin valtauskontoihin, varsinkin evankelis-luterilaisen valtionkirkon enemmistöryhmään. Suomenuskoisten yhteisöön liittymisen prosessin havaittiin muistuttavan sosiaalista itsekategorisointia yhteisön jäsenyydessä ratkaiseva tekijä on oman jäsenyyden tajuaminen itse. Teorian mukaan tämä johtaa sosiaalisen identiteetin muodostumiseen ja siten ryhmäkäyttäytymiseen. Haastateltavilla oli havaittavissa vahva sosiaalinen identiteetti. Uuspakanuuden kenttään suhteutettuna se oli poikkeuksellisen yhtenäinen. Lisäksi selvisi, että suomenuskoiset suunnittelevat uskonnolliseksi yhdyskunnaksi rekisteröitymistä.

Carbon dioxide and methane exchange between a boreal pristine lake and the atmosphere

Lakes serve as sites for terrestrially fixed carbon to be remineralized and transferred back to the atmosphere. Their role in regional carbon cycling is especially important in the Boreal Zone, where lakes can cover up to 20% of the land area. Boreal lakes are often characterized by the presence of a brown water colour, which implies high levels of dissolved organic carbon from the surrounding terrestrial ecosystem, but the load of inorganic carbon from the catchment is largely unknown. Organic carbon is transformed to methane (CH4) and carbon dioxide (CO2) in biological processes that result in lake water gas concentrations that increase above atmospheric equilibrium, thus making boreal lakes as sources of these important greenhouse gases. However, flux estimates are often based on sporadic sampling and modelling and actual flux measurements are scarce. Thus, the detailed temporal flux dynamics of greenhouse gases are still largely unknown. ----- One aim here was to reveal the natural dynamics of CH4 and CO2 concentrations and fluxes in a small boreal lake. The other aim was to test the applicability of a measuring technique for CO2 flux, i.e. the eddy covariance (EC) technique, and a computational method for estimation of primary production and community respiration, both commonly used in terrestrial research, in this lake. Continuous surface water CO2 concentration measurements, also needed in free-water applications to estimate primary production and community respiration, were used over two open water periods in a study of CO2 concentration dynamics. Traditional methods were also used to measure gas concentration and fluxes. The study lake, Valkea-Kotinen, is a small, humic, headwater lake within an old-growth forest catchment with no local anthropogenic disturbance and thus possible changes in gas dynamics reflect the natural variability in lake ecosystems. CH4 accumulated under the ice and in the hypolimnion during summer stratification. The surface water CH4 concentration was always above atmospheric equilibrium and thus the lake was a continuous source of CH4 to the atmosphere. However, the annual CH4 fluxes were small, i.e. 0.11 mol m-2 yr-1, and the timing of fluxes differed from that of other published estimates. The highest fluxes are usually measured in spring after ice melt but in Lake Valkea-Kotinen CH4 was effectively oxidised in spring and highest effluxes occurred in autumn after summer stratification period. CO2 also accumulated under the ice and the hypolimnetic CO2 concentration increased steadily during stratification period. The surface water CO2 concentration was highest in spring and in autumn, whereas during the stable stratification it was sometimes under atmospheric equilibrium. It showed diel, daily and seasonal variation; the diel cycle was clearly driven by light and thus reflected the metabolism of the lacustrine ecosystem. However, the diel cycle was sometimes blurred by injection of hypolimnetic water rich in CO2 and the surface water CO2 concentration was thus controlled by stratification dynamics. The highest CO2 fluxes were measured in spring, autumn and during those hypolimnetic injections causing bursts of CO2 comparable with the spring and autumn fluxes. The annual fluxes averaged 77 (±11 SD) g C m-2 yr-1. In estimating the importance of the lake in recycling terrestrial carbon, the flux was normalized to the catchment area and this normalized flux was compared with net ecosystem production estimates of -50 to 200 g C m-2 yr-1 from unmanaged forests in corresponding temperature and precipitation regimes in the literature. Within this range the flux of Lake Valkea-Kotinen yielded from the increase in source of the surrounding forest by 20% to decrease in sink by 5%. The free water approach gave primary production and community respiration estimates of 5- and 16-fold, respectively, compared with traditional bottle incubations during a 5-day testing period in autumn. The results are in parallel with findings in the literature. Both methods adopted from the terrestrial community also proved useful in lake studies. A large percentage of the EC data was rejected, due to the unfulfilled prerequisites of the method. However, the amount of data accepted remained large compared with what would be feasible with traditional methods. Use of the EC method revealed underestimation of the widely used gas exchange model and suggests simultaneous measurements of actual turbulence at the water surface with comparison of the different gas flux methods to revise the parameterization of the gas transfer velocity used in the models.

Nationalism Circumscribed : Transnational Governance of Minority Rights in Post-Cold War Europe

For the past two centuries, nationalism has been among the most influential legitimizing principles of political organization. According to its simple definition, nationalism is a principle or a way of thinking and acting which holds that the world is divided into nations, and that national and political units should be congruent. Nationalism can thus be divided into two aspects: internal and external. Internally, the political units, i.e., states, should be made up of only one nation. Externally each nation-state should be sovereign. Transnational national governance of rights of national minorities violates both these principles. This study explores the formation, operation, and effectiveness of the European post-Cold War minorities system. The study identifies two basic approaches to minority rights: security and justice. These approaches have been used to legitimize international minority politics and they also inform the practice of transnational governance. The security approach is based on the recognition that the norm of national self-determination cannot be fulfilled in all relevant cases, and so minority rights are offered as a compensation to the dissatisfied national groups, reducing their aspiration to challenge the status quo. From the justice perspective, minority rights are justified as a compensatory strategy against discrimination caused by majority nation-building. The research concludes that the post-Cold War minorities system was justified on the basis of a particular version of the security approach, according to which only Eastern European minority situations are threatening because of the ethnic variant of nationalism that exists in that region. This security frame was essential in internationalising minority issues and justifying the swift development of norms and institutions to deal with these issues. However, from the justice perspective this approach is problematic, since it justified double standards in European minority politics. Even though majority nation-building is often detrimental to minorities also in Western Europe, Western countries can treat their minorities more or less however they choose. One of the main contributions of this thesis is the detailed investigation of the operation of the post-Cold War minorities system. For the first decade since its creation in the early 1990s, the system operated mainly through its security track, which is based on the field activities of the OSCE that are supported by the EU. The study shows how the effectiveness of this track was based on inter-organizational cooperation in which various transnational actors compensate for each other s weaknesses. After the enlargement of the EU and dissolution of the membership conditionality this track, which was limited to Eastern Europe from the start, has become increasingly ineffective. Since the EU enlargement, the focus minorities system has shifted more and more towards its legal track, which is based on the Framework Convention for the Protection of National Minorities (Council of Europe). The study presents in detail how a network of like-minded representatives of governments, international organizations, and independent experts was able strengthen the framework convention s (originally weak) monitoring system considerably. The development of the legal track allows for a more universal and consistent, justice-based approach to minority rights in contemporary Europe, but the nationalist principle of organization still severely hinders the materialization of this possibility.

Arrested Drunk Drivers : Trends, social background, recidivism and mortality

The aim of this study was to examine the trends, incidence and recidivism of drunken driving during a 20-year period (1988 - 2007) using the data on all suspected drunken driving in this period. Furthermore, the association between social background and drunken driving, and the mortality of drunk drivers were studied by using administrative register data provided by Statistics Finland. The study was completely register-based. In 1989 - 1991, every year 30,000 drivers were suspected of drunken driving, but the number fell to less than 20,000 by 1994, during the economic recession. The changes in the arrest incidence of the youngest age groups were especially pronounced, most of all in the age group of 18 - 19-year olds. Even though the incidence among youth decreased dramatically, their incidence rate was still twice that of the general population aged 15 - 84 years. Drunken driving was associated with a poor social background among youth and working-aged men and women. For example, a low level of education, unemployment, divorce, and parental factors in youth were associated with a higher risk of being arrested for drunken driving. While a low income was related to more drunken driving among working-aged people, the effect among young persons was the opposite. Every third drunk driver got rearrested during a 15-year period, whereas the estimated rearrest rate was 44%. Findings of drugs only or in combination with alcohol increased the risk of rearrest. The highest rearrest rates were seen among drivers who were under the influence of amphetamines or cannabis. Also male gender, young age, high blood alcohol concentration, and arrest during weekdays and in the daytime predicted rearrest. When compared to the general population, arrested drunk drivers had significant excess mortality. The greatest relative differences were seen in alcohol-related causes of death (including alcohol diseases and alcohol poisoning), accidents, suicides and violence. Also mortality due to other than alcohol-related diseases was elevated among drunk drivers. Drunken driving was associated with multiple factors linked to traffic safety, health and social problems. Social marginalization may expose a person to harmful use of alcohol and drunken driving, and the associations are seen already among the youth. Recidivism is common among drunk drivers, and driving under the influence of illicit and/or medicinal drugs is likely to indicate worse substance abuse problems, judging from the high rearrest rates. High alcohol-related mortality in this population shows that drunken driving is clearly an indicator of alcohol abuse. More effective measures of preventing alcohol-related harms are needed, than merely preventing convicted drunk drivers from driving again.

Hoivakodin työntekijöiden työhyvinvointi symbolisen interaktionismin näkökulmasta - Työssä kohdattujen ongelmien ja sosiaalisten suhteiden tarkastelua

Tutkielma keskittyy hoivahenkilöstön työhyvinvoinnin merkityksiin ja sen ongelmakohtiin erään vanhusten hoivalaitoksen henkilökunnan kertomana. Tutkimuksen teoreettisena viitekehyksenä toimii Blumerin (1969) teoria symbolisesta interaktionismista, sekä Strykerin strukturaalinen symbolinen interaktionismi (2008). Tutkimuskohteena ovat sosiaaliset prosessit siltä osin kuin ne haittaavat tai tukevat työhyvinvointia hoivalaitoksissa. Tutkielman tavoitteena ei ole käyttää grounded theorya uuden teorian löytämiseen, vaan uusien työhyvinvoinnin tekijöiden kartoittamiseen. Tutkimuskysymykset käsittelivät sitä, millaisena työhyvinvointi näyttäytyy haastateltavien kertomana. Ja lisäksi tarkasteltiin sitä, miten sosiaaliset suhteet työyhteisössä kytkeytyvät työhyvinvoinnin eri aspekteihin. Vanhustenhoidon erityispiirteitä ja aikaisempia työhyvinvoinnin tutkimuksia käydään läpi, sekä kartoitetaan vanhustenhoidon tilaa suomalaisessa yhteiskunnassa. Työhyvinvoinnin käsitettä tarkastellaan sekä yleisesti että vanhustenhoidon osalta. Tutkimusmenetelmänä toimi laadullinen aineistolähtöinen symboliseen interaktionismiin perustuva grounded theory. Aineisto koostui puolistrukturoiduista haastatteluista ja käsitti yhteensä 24 haastattelua, joista 12 valittiin tähän tutkielmaan. Kaikki haastateltavat olivat naisia, johon kuului 8 lähi- ja perushoitajaa, 2 sairaanhoitajaa ja 2 osastonhoitajaa. Haastateltavien valinnan kriteerinä oli työskentely pitkäaikaispotilaiden osastolla. Aineisto analysoitiin glaserilaista grounded theory metodologiaa käyttäen hyödyntäen abduktion logiikkaa. Haastattelut analysoitiin grounded theory metodologian mukaisesti avoimen ja selektiivisen koodauksen avulla CAT-ohjelmaa apuna käyttäen. Tutkimustulosten perusteella havaittiin, että työhyvinvointi koostuu dynaamisista työyhteisön prosesseista, joita säätelevät luottamuksen ja vallankäytön tasapainottelu. Työhyvinvointia kannatteleviin tekijöihin lukeutui avoin kommunikaatio, kollegiaalinen tuki, tasavertaisuus ja yhteiset pelisäännöt. Työhyvinvointia haittaaviksi sosiaalisiksi prosesseiksi fokusoitui vallankäyttö, joka oli selkein työhyvinvointia uhkaava kategoria haastateltavien puheessa. Se oli yhteydessä lukuisiin suoriin ja epäsuoriin interaktion muotoihin, kuten vaientamiseen, syyllistämiseen ja nonkommunikaatioon. Hoivaorganisaation keskeinen dynaaminen elementti oli hoivaorganisaation jähmeys, joka näkyi monella tapaa työyhteisön arjessa vaikeuttaen koko organisaation toimintaa. Organisaation johdolla on merkitystä hoivaorganisaation toiminnan kannalta sekä puheen kulttuurin että konservatiivisen johtamisen muodossa. Merkityssisältöjen erilaisuus johdon ja alaisten välillä aiheutti vuorovaikutuksen vaikeutumista. Sosiaaliset suhteet olivat odotetusti tärkeässä asemassa hoivahenkilöstön työn arjessa. Analyysin tulokset tukivat hoivalaitoksien työntekijöiden työhyvinvointitutkimuksen aikaisempaa linjaa, joissa on korostettu sosiaalisten suhteiden, luottamuksen ja vallankäytön merkitystä työhyvinvointiin. Työn tarkoituksena oli tuottaa uusia työhyvinvoinnin tekijöitä. Tällaisena voidaan pitää nonkommunikaation merkitystä organisaation vuorovaikutusprosessien kannalta. Tutkielman keskeisimmät lähteet ovat: Blumer, H.: Symbolic Interactionism: Perspective and Method; Utriainen, K.: Arvostava vastavuoroisuus ikääntyvien sairaanhoitajien työhyvinvoinnin ytimenä hoitotyössä, sekä Stryker, S.: From Mead to a Structural Symbolic Interactionism and Beyond.

Oppineiden talossa : Helsingin yliopiston slavistien kansainväliset verkostot Suomen Yliopistollisen Avustuskomitean toiminnan yhteydessä vuosina 1921-1925.

Tutkimuksessani tarkastelen kolmen Helsingin yliopiston slavistin, kirjastonhoitaja Andrei Igelströmin, kansan-runoudentutkija Viljo Johannes Mansikan ja kielentutkija Jooseppi Julius Mikkolan, kansainvälisiä tieteellisiä ja poliittisia verkostoja. Nämä verkostot muodostuivat venäläisten tiedemiesten avustamiseksi perustetun Suomen Yliopistollisen Avustuskomitean kansainvälisen toiminnan ja siihen keskeisesti liittyneiden venäläisten tieteellisten julkaisujen välityksen ja Helsingin yliopiston konsistorin alaisen Venäläisten kirjaston ostohankkeen ympärille vuosina 1921-1925. Tutkimuksessani olen pyrkinyt vastamaan kysymyksiin: Millaista kansainvälistä tieteellistä ja poliittista yh-teistyötä suomalaiset slavistit Avustuskomitean yhteydessä harjoittivat? Millaisia tavoitteita Igelström, Mansikka ja Mikkola asettivat Suomen Yliopistollisen Avustuskomitean toiminnalle? Millaisia poliittisia ja tieteellisiä toimintamuotoja Avustuskomitea slavistien ohjaamana sai, mitä ulkopuolisia tavoitteita avustustoimintaan liittyi, ja lopulta miten Avustuskomitean toiminta heijasteli kansainvälisen tieteellisen yhteistyön muutosta uudessa valtiollisessa tilanteessa 1920-luvun alussa? Aihettani olen jäsentänyt verkosto-käsitteen ja verkostoteorian mallien avulla. Keskeisiä lähteitä ovat olleet Igelströmin, Mansikan ja Mikkolan Avustusko-miteaa käsittelevä kirjeenvaihto, Avustuskomitean kirjanpito ja avustustoimintaan osallistuneiden yhteisöjen julkaisemattomat ja julkaistut raportit sekä muistiot. Tutkimuksessa on käytetty historiantutkimuksen mene-telmiä, ja se liittyy Helsingin yliopiston slaavilaisen filologian oppiaineen ja Venäläisen kirjaston historiaan. Tutkimus osoitti Igelströmin, Mansikan ja Mikkolan kansainvälisten tieteellisten verkostojen olleen ratkaisevassa asemassa Suomen Yliopistollisen Avustuskomitean muodostamisessa ja kansainvälisen avustustoiminnan järjestämisessä. Tieteellisistä verkostoista keskeisessä asemassa oli Pietarin Tiedeakatemian tieteellisten julkaisuiden myynti ja vaihto. Painotuotteiden vaihto länsimaisten tieteellisten instituuttien kanssa järjestettiin Venäläisen kirjaston ja sen kirjastonhoitajan Andrei Igelströmin välityksellä. Vuosina 1921 1923 Igelströmin hallinnoima vaihtokeskus oli kansainvälisesti ainutlaatuinen ja rakensi uudelleen tieteellisen yhteistyön Suomen ja Venäjän välille sekä loi edellytyksiä kansainvälisen tiedeyhteistyön elvyttämiselle venäläisen tiedeyhteisön kanssa. Poliittisten verkostojen näkökulmasta suomalaisten slavistien kontaktit T ekkoslovakian ulko-asianhallinnon kanssa paljastuivat läheisiksi ja yhteistyö ulottui avustustoiminnan lisäksi myös Suomen kau-pallisten etujen edistämiseen ja kysymykseen venäläisten emigranttien asemasta T ekkoslovakiassa 1920-luvun alkuvuosina. Venäläisten emigranttien asema Prahassa ja Suomen Yliopistollisen Avustuskomitean välinen yhteys konkretisoitui Venäläisen kirjaston ostohankkeessa. Kirjastonostohankkeen syyksi on tässä tutkimuksessa osoitettu T ekkoslovakian ulkoasianhallinnon action russe -politiikka ja T ekkoslovakian valtion pyrkimys luoda edellytyksiä uudelle tieteelliselle orientaatiolle, johon slavistisen tutkimuksen ja kielitieteiden kehitys 1920-luvun Prahassa liittyivät. Aloitteentekijöiksi kirjastonostohankkeeseen on osoitettu Helsingissä ja Prahassa toiminut ukrainalainen emigrantti Vladimir Tukalevski, joka yhdessä Igelströmin ja T ekkoslovakian varaulkoasiain-ministerin Václav Girsan kanssa suunnitteli Venäläisen kirjaston ostamista ja sen siirtämistä Prahaan.

Aikapankki - Tutkimus lahjaperustaiseen vaihtoon perustuvasta yhteisöllisyyden rakentamisesta Helsingissä

Pro gradu -tutkielmassani tutkin aikapankkijärjestelmässä tapahtuvaa palveluiden vaihtoa vertaamalla sitä lahjanvaihtoon. Tutkielmassa kuvaan kuinka Kumpulan Vaihtopiirinä toimintansa aloittaneen Stadin Aikapankin aktiiviset jäsenet kokevat toiminnan, kun se on laajennut oman asuinalueen ulkopuolelle. Aikapankin voi mieltää uudenlaiseksi vapaaehtoistyön muodoksi. Aikapankin jäsenet tuottavat toisilleen palveluita ja mittaavat näihin käytettyä aikaa aikapisteillä, jotka toimivat vaihdon välineenä. Aikapankissa kaikkien työ arvotetaan saman arvoiseksi. Tutkielman pääaineistona on kymmenen käyttäjän avohaastattelut. Näitä täydennetään vaihtotilastolla ja osallistuvan havainnoinnin menetelmällä. Tutkimusta varten on kerätty tausta-aineistoa kahdella sähköpostihaastattelulla kahdelta Ruotsissa ja Englannissa toimivien aikapankkien työntekijältä. Merkittävin tutkimusongelma liittyy aikapankin tasa-arvoisen työnarvottamiseen. Kysyn miten ja millä ehdoin aikapankin kaltainen sosiaalinen innovaatio toimii? Lisäksi kysyn, mitä ehtojen täyttymisestä seuraa? Lähestyn kysymystä Emil Durkheimin modernisaatioteoriaan ja Marcel Maussin lahjanvaihtoa käsittelevään teoreettiseen ajatteluun nojaten. Teoreettisessa keskustelussa viitataan myös Karl Polanyin Maussia tukevaan näkemykseen esimodernien vaihtokäytäntöjen ilmenemisestä markkinatalouden rakenteistamassa maailmassa. Lisäksi pohdin tutkielmassani sitä, mitä aikapankissa vaihdettavat aikapisteet tekisivät, mitä oikea raha ei tekisi paremmin. Vastaus on se, että tutkittavani eivät saisi rahalla sitä, mitä he tavoittelevat – yhteisöä. Tutkielman lopussa keskustelen myös sitä, mikä on aikapankin luomien epämarkkinataloussuhteiden taloudellinen konteksti. Kontekstiin liittyen voidaan todeta, että tutkittavat eivät pakene rahataloutta. He solmivat perinteisen yhteisöllisen siteen (perheen) mukaista (lahjaperustaista) vaihtoa lähellä asuviin ihmisiin. Tutkielmassa päädytään siihen tulokseen, että aikapankin haasteeksi ei muodostu niinkään markkinoille vieras tasapuolinen työn hinnoittelu, vaan sellaisten yhteisöllisten siteiden heikkous, joiden varaan vaihto leviäisi. Tästä syystä aikapankkia perustettaessa ratkaisevaksi muodostuu se, minkä yhteisöllisen siteen varaan vaihtosuhteet muodostuvat. Tästä syystä tutkielmassa tullaan siihen tulokseen, että aikapankkitoiminta olisi hyvä pitää paikallisena. Sosiaalipoliittisesta näkökulmasta katsottuna tutkimusaihe on merkittävä ja tuore. Aihetta tutkittu jo sosiaalipolitiikan alalla, muttei aikaisemmin Suomessa. Aikaisemman muualla tehdyn tutkimuksen tulokset ovat lähestyneet aihetta muun muassa sosiaalisen pääomaan käsitteen avulla. Tutkittavani vaihtavat myös sellaisia palveluita, joita julkinen sektori tuottaa suomessa, kuten lastenhoitoa. Taustoitan tutkimusta aikaisemmalla tutkimuskirjallisuudella ja kuvaan Suomessakin yleistynyttä vertaistuotantokeskustelua. Vertaistuotanto avaa uuden näkökulman palvelutuotantoon 1990-luvulla jalansijaa saaneiden tilaaja-tuottaja–mallien rinnalle. Tutkielman tarkoitus on tuottaa käytännönläheistä tietoa aikapankkitoiminnasta kiinnostuneille yhteisöille ja organisaatioille. Tämän lisäksi tutkimus täydentää aiempien aikapankkeja käsitelleiden tutkimusten tuloksia tarkastelemalla toiminnan ehtoja, ei ainoastaan sen seurauksia.

Cliffordin analyysi ja sovelluksia

Cliffordin algebrat ovat äärellisulotteisia reaali- tai kompleksikertoimisia algebroja, jotka yleistävät kvaterneja ja kompleksilukuja. Näitä algebroja on kutsuttu myös geometrisiksi algebroiksi. Tässä tutkielmassa tarkastellaan analyysiä Cliffordin algebroilla ja sen sovelluksia. Analyysi tässä tarkoittaa sitä, että tarkastellaan Cliffordin algebraarvoisia funktioita, jotka omaavat erikseen määriteltyjä sileysominaisuuksia. Sovelluskohteina ovat osittaisdifferentiaaliyhtälöt ja reuna-arvo-ongelmat. Menetelmät ovat klassisia kompleksianalyysin menetelmiä. Tutkielmassa esitellään Cliffordin algebrat yleisille neliömuodollisille avaruuksille. Keskeisiä algebrallisia ominaisuuksia ovat Frobeniuksen teoreema ja perusoperaatiot. On yleisesti tunnettua, että kvaterneilla voidaan esittää kolmiulotteisen ja neljäulotteisen avaruuden rotaatiot. Tutkielmassa esitellään, miten Cliffordin ryhmiä, jotka ovat Cliffordin algebrojen osajoukkoja, käytetään useamman ulottuvuuden rotaatioiden esityksessä. Toinen sovelluskohde on Möbius-kuvausten esittäminen Vahlenin matriiseilla. Tutkielman toisessa osiossa määritellään monogeeniset funktiot erään Diracin operaattorin nollaratkaisuina. Monogeenisten funktioiden pääominaisuus on Cauchyn integraalikaava. Välittömiä seurauksia ovat esimerkiksi potenssisarjakehitelmät, analyyttisuus, Liuvillen teoreema ja muut klassisen kompleksianalyysin tuloksien yleistykset. Toisaalta monet kompleksianalyysin tulokset eivät yleisty. Esimerkiksi monogeenisten funktioiden tulo ei ole yleisesti ottaen monogeeninen. Potenssisarjat voidaan esittää monogeenisten polynomeiden avulla. Esitämme kannan monogeenisten polynomien avaruudelle käyttäen CK-laajennusta. Cauchyn ytimen ominaisuuksien avulla tarkastelemme Diracin operaattorin reuna-arvo-ongelmia ja nk. D-ongelmaa. Käyttäen Rungen lauseen yleistystä osoitamme D-ongelman yleisen ratkaistavuuden. Toisaalta reuna-arvo-ongelman ratkaistavuus karakterisoidaan käyttäen Cauchyn ytimen reuna-arvo-ominaisuuksia ja hyppyrelaatioita. Keskeinen sovellus tuloksille on aikaharmonisen Maxwellin yhtälön reuna-arvo-ongelmien tarkastelu. Mielenkiintoista on myös, miten Diracin operaattori linearisoi Laplacen operaattorin ja aalto-operaattorin. Toisaalta Diracin operaattorin avulla voidaan ilmaista Maxwellin yhtälöt tiiviissä muodossa. Muita tuloksia tutkielmassa ovat meromorfifunktioiden määritelmä ja Mittag-Lefflerin lause. Tutkielman lopuksi tarkastellaan lyhyesti harmonisten funktioiden ja monogeenisten funktioiden suhdetta. Jokainen harmoninen funktio on jonkin monogeenisen funktion reaaliosa. Tosin monogeeninen funktio ei ole yksikäsitteisesti määrätty sen reaaliosan avulla.