Why are students choosing STEM and when do they make their choice?

BACKGROUND OR CONTEXT The higher education sector plays an important role in encouraging students into the STEM pipeline through fostering partnerships with schools, building on universities long tradition in engagement and outreach to secondary schools. Numerous activities focus on integrated STEM learning experiences aimed at developing conceptual scientific and mathematical knowledge with opportunities for students to show and develop skills in working with each other and actively engaging in discussion, decision making and collaborative problem solving. (NAS, 2013; AIG, 2015; OCS, 2014). This highlights the importance of the development and delivery of engaging integrated STEM activities connected to the curriculum to inspire the next generation of scientists and engineers and generally preparing students for post-secondary success. The broad research objective is to gain insight into which engagement activities and to what level they influence secondary school students’ selection of STEM-related career choices at universities. PURPOSE OR GOAL To evaluate and determine the effectiveness of STEM engagement activities impacting student decision making in choosing a STEM-related degree choice at university. APPROACH A survey was conducted with first-year domestic students studying STEM-related fieldswithin the Science and Engineering Faculty at Queensland University of Technology. Of the domestic students commencing in 2015, 29% responded to the survey. The survey was conducted using Survey Monkey and included a variety of questions ranging from academic performance at school to inspiration for choosing a STEM degree. Responses were analysed on a range of factors to evaluate the influence on students’ decisions to study STEM and whether STEM high school engagement activities impacted these decisions. To achieve this the timing of decision making for students choice in study area, degree, and university is compared with the timing of STEM engagement activities. DISCUSSION Statistical analysis using SPSS was carried out on survey data looking at reasons for choosing STEM degrees in terms of gender, academic performance and major influencers in their decision making. It was found that students choose their university courses based on what subjects they enjoyed and exceled at in school. These results found a high correlation between enjoyment of a school subject and their interest in pursuing this subject at university and beyond. Survey results indicated students are heavily influenced by their subject teachers and parents in their choice of STEM-related disciplines. In terms of career choice and when students make their decision, 60% have decided on a broad area of study by year 10, whilst only 15% had decided on a specific course and 10% had decided on which university. The timing of secondary STEM engagement activities is seen as a critical influence on choosing STEM disciplines or selection of senior school subjects with 80% deciding on specific degree between year 11 and 12 and 73% making a decision on which university in year 12. RECOMMENDATIONS/IMPLICATIONS/CONCLUSION Although the data does not support that STEM engagement activities increase the likelihood of STEM-related degree choice, the evidence suggests the students who have participated in STEM activities associate their experiences with their choice to pursue a STEM-related course. It is important for universities to continue to provide quality engaging and inspirational learning experiences in STEM, to identify and build on students’ early interest and engagement, increase STEM knowledge and awareness, engage them in interdisciplinary project-based STEM practices, and provide them with real-world application experiences to sustain their interest.

Romantic terrorism? Survivor narratives of psychological and emotional tactics of domestic violence

This paper draws on the theoretical arguments outlined in Hayes (2014) to frame critical analyses of two real life domestic violence narratives. The authors are both academic criminologists and victims/survivors of domestic violence, but within differing contexts – one a conventional heterosexual relationship, the other a female same-sex relationship. Their experiences are intertwined in an extensive collaborative auto-ethnographic analysis that spans seven years of working and socialising together, in which each provided a sounding board and support for the other. The analysis therefore documents two personal journeys. The academic and theoretical are intertwined with the personal and subjective to elicit an evocative and yet empirically validated study. The theoretical underpinnings of romantic love distortion, misogyny and sexism are used to frame these experiences of domestic violence and the differing sexualities of the authors provide a rich context for exploring the ways in which domestic violence victimisation experiences are impacted by gender, sexuality, and heteronormative discourses of love, sex and relationships.

Evaluating the effects of international exposure from networks ties and mimetic pressure on clustered SMEs in Brazil

Research on the internationalisation of small and medium-sized enterprises (SMEs) has received increasing attention in recent years due to the important role they play in today’s economic environment. Internationalisation prompting, or awareness, is an already recognised phase of the innovation-related stages model (I-model). This phase of awareness is closely related to the international exposure that a firm may experience during the occasion when it realises its competitors are already internationalising. Although the literature has discussed the various forms in which international exposure may happen, there has been limited attention given to the extent of its effect on the internationalisation of clustered SMEs that behave according to the I-Model. This study will assess the applicability of the I-Model in a dynamic, competitive and co-operative setting of an industrial cluster. It also evaluates the impact (if any) of international exposure derived from networks and the mimetic pressure that these firms may experience due to their embeddedness in an industrial cluster. Results from this study will indicate the effectiveness of the improved adapted model that will provide a richer insight for both academic researchers and policy makers.

Luke, The Friend of Sinners

I examine the portrayal of Jesus as a friend of toll collectors and sinners in the Third Gospel. I aim at a comprehensive view on the Lukan sinner texts, combining questions of the origin and development of these texts with the questions of Luke s theological message, of how the text functions as literature, and of the social-historical setting(s) behind the texts. Within New Testament scholarship researchers on the historical Jesus mostly still hold that a special mission to toll collectors and sinners was central in Jesus public activity. Within Lukan studies, M. Goulder, J. Kiilunen and D. Neale have claimed that this picture is due to Luke s theological vision and the liberties he took as an author. Their view is disputed by other Lukan scholars. I discuss methods which scholars have used to isolate the typical language of Luke s alleged written sources, or to argue for the source-free creation by Luke himself. I claim that the analysis of Luke s language does not help us to the origin of the Lukan pericopes. I examine the possibility of free creativity on Luke s part in the light of the invention technique used in ancient historiography. Invention was an essential part of all ancient historical writing and therefore quite probably Luke used it, too. Possibly Luke had access to special traditions, but the nature of oral tradition does not allow reconstruction. I analyze Luke 5:1-11; 5:27-32; 7:36-50; 15:1-32; 18:9-14; 19:1-10; 23:39-43. In most of these some underlying special tradition is possible though far from certain. It becomes evident that Luke s reshaping was so thorough that the pericopes as they now stand are decidedly Lukan creations. This is indicated by the characteristic Lukan story-telling style as well as by the strongly unified Lukan theology of the pericopes. Luke s sinners and Pharisees do not fit in the social-historical context of Jesus day. The story-world is one of polarized right and wrong. That Jesus is the Christ, representative of God, is an intrinsic part of the story-world. Luke wrote a theological drama inspired by tradition. He persuaded his audience to identify as (repenting) sinners. Luke's motive was that he saw the sinners in Jesus' company as forerunners of Gentile Christianity.

Literacy, Place and Pedagogies of Possibility

How can teachers ensure a pedagogy of possibility underpinned by social justice, and what has literacy got to do with this? This book explores the positive synergies between critical literacy and place-conscious pedagogy. Through rich classroom research it introduces and demonstrates how a synthesis of insights from theories of space and place and literacy studies can underpin the design and enactment of culturally inclusive curriculum for diverse student communities, and illustrates how making place and space the objects of study provide productive resources for teachers to design enabling pedagogical practices that extend students' literate repertoires. The argument is that systematic study of and engagement with specific elements of place can enable students' academic learning and literacy.

The application of learning analytics to improve learning: Questions from the academy

Since 2007, close collaboration between the Learning and Teaching Unit’s Academic Quality and Standards team and the Department of Reporting and Analysis’ Business Objects team resulted in a generational approach to reporting where QUT established a place of trust. This place of trust is where data owners are confident in date storage, data integrity, reported and shared. While the role of the Department of Reporting and Analysis focused on the data warehouse, data security and publication of reports, the Academic Quality and Standards team focused on the application of learning analytics to solve academic research questions and improve student learning. Addressing questions such as: • Are all students who leave course ABC academically challenged? • Do the students who leave course XYZ stay within the faculty, university or leave? • When students withdraw from a unit do they stay enrolled on full or part load or leave? • If students enter through a particular pathway, what is their experience in comparison to other pathways? • With five years historic reporting, can a two-year predictive forecast provide any insight? In answering these questions, the Academic Quality and Standards team then developed prototype data visualisation through curriculum conversations with academic staff. Where these enquiries were applicable more broadly this information would be brought into the standardised reporting for the benefit of the whole institution. At QUT an annual report to the executive committees allows all stakeholders to record the performance and outcomes of all courses in a snapshot in time or use this live report at any point during the year. This approach to learning analytics was awarded the Awarded 2014 ATEM/Campus Review Best Practice Awards in Tertiary Education Management for The Unipromo Award for Excellence in Information Technology Management.

Yrittäjyyden arvottaminen akateemisten nuorten argumentoinnissa

Evaluation of entrepreneurship in the speech of academic students and newly qualified young academics a summary of a qualitative attitude study. In Finland very few university students plan to become entrepreneurs. The aim of this research was to examine entrepreneurial attitudes expressed in speech. The material was gathered from interviews with university students and newly qualified young academic adults. The interviewees commented on twelve different sentences with claims formulated using research literature and views that have appeared in public discussions. The interviewees were divided into three different groups based on their self-expressed entrepreneurial intentions. The method of qualitative attitude research (Vesala & Rantanen 1999, 2007) was used in the interviews. The research material was studied using two interpretative theories: (1) The planned behaviour theory (Ajzen 1985, 1991a, b), which makes it possible to focus on the separate elements (attitude towards an act, subjective norms and perceived feasibility) necessary for intentions to develop; and (2) The theory of the two images of entrepreneurship (Vesala 1996), where individualism and relationism can be seen as resources for evaluating entrepreneurship. The subject of the research was how university students and newly qualified young adults viewed entrepreneurship as a general phenomen and in relation to the academic world. A second focus was on the attitudes expressed toward entrepreneurial university education and the possibility of combining entrepreneurship and academic knowledge. Of interest were also questions such as whether academic studies, knowledge and the university itself are resources or barriers to entrepreneurial intentions and entrepreneurship whether university students received any support for their entrepreneurial ambitions from the university and their fellow academic students. The problems tackled by this research were thus the following: How was entrepreneurship seen, both as a general phenomen and in an academic context, when it was evaluated positively, negatively or neutrally by the interviewees? In what way was entrepreneurship constructed in the interviewees attitudes? How were entrepreneurship and the academic world related in the interviewees attitudes? What kind of role did the university as an academic context play in the interviewees attitudes for example were university education and academic knowledge seen as resources or barriers to their entrepreneurial intentions. Traditional attitude studies claim that attitudes are a stable property of an individual. In contrast, rhetorical social psychological and qualitative attitude studies emphasize the contextual and linguistic aspects of attitude, and they offered an alternative viewpoint for this research. The study was based on two general assumptions: attitudes have objects and are evaluative. Here attitude was defined as an evaluative interpresentation made towards an object; adopting an attitude is a contextual process in the sense that attitudes are always concerned with the action context of the persons presenting them. Entrepreneurship, both as a general phenomen and in an academic context, was specified as the object to which an attitude was taken. From a theoretical point of view, qualitative methods suited the general structure of this research well. In a particular, qualitative approach which emphasized contextual elements proved to be both empirically valid and useful for avoiding the problematic assumptions associated with traditional attitude study. The subject of the analysis was the argumentative speech produced by the interviewees. The results of the study show the subjects responses to three main ways of viewing entrepreneurships. The first was an individualistic, ideal image of entrepreneurship. This was mostly evaluated positively and gained wide approval especially among interviewees who included entrepreneurship among their employment choices. Entrepreneurship was seen as the decision to earn one s living independently. In this individualistic image of entrepreneurship, the social context was hardly ever mentioned. Elements which were seen to threaten this ideal image were evaluated negatively. When entrepreneurship was evaluated negatively using the individualistic image of entrepreneurship, it was mentioned that it forced one into a never ending cycle of work and uninterested duties. The relationistic image of entrepreneurship was used as a speech resource when the social context was constructed as an economic resource or a threat to the ideal image of entrepreneurship. In the second view, entrepreneurship was characteristically seen as being based on economics, which was seen as a threat to the ideal individualistic image of entrepreneurship. The risk of economic failure was seen as a limiting factor to entrepreneurial ambitions as it forced entrepreneurs to work around the clock. The third view concerned the relationship between entrepreneurship and the academic world. Entrepreneurship as an employment choice for university educated persons was evaluated as relevant, and thus positively, when university education was constructed as a resource for entrepreneurship - and irrelevant and thus negatively when it was construed as an obstacle, too wide, or when successful entrepreneurship was seen as being mostly based on an individual s personal characteristics. The interviewees with no entrepreneurial intentions expressed the view that academic education didn t provide the proper skills and knowledge for entrepreneurship. The interviewees also expressed interest in university entrepreneurship education, although none had experience on this. The interviewees emphasized the fact that the University didn t encourage them to consider entrepreneurship as a relevant employment choice. The assumption made by this study was that becoming an entrepreneur is a conscious decision, the environment may influence an individual s decisions on how to make a living as it tends to socialise people to act in accordance with cultural traditions. Keywords: Entrepreneurship, Attitudes towards entrepreneurship, Intentional behaviour, Entrepreneurial intention, University entrepreneurship education, Qualitative attitude research (Vesala & Rantanen 1999, 2007), Rhetorical social psychology (Billig 1986), The theory of entrepreneuship s two images: individualism and relationism (Vesala 1996 ), The planned behaviour theory (Ajzen 1985, 1991a, b)

Lastensuojelun sosiaalityö asiakirjoina : Dokumentoinnin ja tiedonmuodostuksen dynamiikka

Tutkimuksen keskeinen tehtävä on selvittää, mikä on dokumentoinnin merkitys lastensuojelun sosiaalityön tiedonmuodostuksessa ja ammattikäytännöissä. Asiakirjateksteistä koostuvaa tutkimusaineistoa tarkastellaan kolmesta eri suunnasta kysymällä: 1)Miten asiakirjoja kirjoitetaan? 2) Mitä asiakirjoihin kirjoitetaan? 3) Miksi asiakirjoja kirjoitetaan niin kuin kirjoitetaan? Tutkimusaineisto muodostuu lastensuojelun sosiaalityöntekijöiden laatimista asiakastietojärjestelmään tallennetuista muistiinpanoista ja huostaanottopäätöksistä. Tutkimukseen on valittu 20 huostaanotetun eri-ikäisen lapsen ja heidän perheensä asiakirjat yhteensä 1613 asiakirjatulostussivua. Tekstit ajoittuvat vuodesta 1989 vuoteen 2000. Tutkimusmenetelmä on diskurssianalyyttinen ja tukeutuu Fairclough`n (1997)esittämään kolmiulotteiseen malliin, jossa diskurssi määritellään tekstin, käytäntöjen ja sosiokulttuurisen ympäristön suhteeksi. Diskurssianalyysi on näiden rakenteiden ja niiden välisten suhteiden kuvaamista, tulkintaa ja selittämistä. Fairclough’n mallia mukaillen tutkimuksen analyysi koostuu retoriikan ja tematiikan analyyseistä sekä pragmatiikan näkökulman sisältävästä tarkastelusta. Asiakirjatekstien pilkkominen puhujakategorioihin osoitti tekstien olevan moniäänisiä, useiden henkilöiden näkemyksiä ja mielipiteitä sisältäviä tekstipintoja. Retoriikan analyysi näytti, että lastensuojelun sosiaalityön asiakirjat sisältävät paljon dynaamisia kuvauksia työstä. Asiakirjojen kirjoittaminen moniäänisiksi tuo tekstiin uskottavuutta, ja se on myös yksi retorinen vaikuttamiskeino. Tematiikan tarkastelu osoitti,että asiakirjojen sisällölliset teemat (lapsen hoiva, arjen hallinta, yhteistyö ja päihteiden käyttö) ja kokemukselliset teemat (huoli, vastuu, yhteys ja moraali) toistuvat sisäkkäisinä ja päällekkäisinä säikeinä dynaamisesti vaihdellen. Sosiaalityöntekijät kirjaavat teksteihin monia yhtäaikaisia teemoja, joiden avulla rakentavat ammatillista ymmärrystä kyseessä olevasta tilanteesta. Asiakirjojen tutkiminen pragmatiikan suunnasta toi esiin, kirjoittamisen ja lukemisen kontekstiulottuvuudet sekä tiedonmuodostusprosessin. Asiakirjojen laatiminen on osa sosiaalityön käytäntöjä. Se on myös keskeinen alue ammattikunnan yhteisen ammatillisen ymmärryksen luomisessa ja ylläpitämisessä. Muistiinpanot, huostaanottopäätökset ja lakitekstit ovat intertekstuaalisia. Lastensuojelun sosiaalityön asiakirjojen tutkiminen on avannut uusia mahdollisuuksia ymmärtää sosiaalityön dokumentointiprosessia, merkitystä ja roolia sekä tiedonmuodostuksen dynamiikkaa. Tekstien kirjoittaminen, niiden lukeminen, tietojen siirtäminen ja asiakkaan kuuleminen samoin kuin kuulemisen kirjaaminen ovat sosiaalityön dokumentoinnin keskeisiä haasteita. Tutkimus pyrkii avaamaan ymmärrystä asiakirjatekstien monivivahteiseen ja dynaamiseen maailmaan ja siten myös sosiaalityön dokumentoinnin arkeen. Tarkastelut mahdollistavat työn kehittämisen erityisesti sosiaalityön asiakasvaikuttavuuden mittaamisen ja parantamisen suuntaan. Asiakirjoissa ilmenevä tiedonmuodostuksen dynamiikka syntyy kirjoittamiskäytäntöjen, kirjoittamisen ja lukemisen sekä toimintakäytäntöjen yhteisessä alueessa. Avainsanat: sosiaalityö, lastensuojelu, dokumentointi, asiakirja, diskurssianalyysi, tiedonmuodostus.

Yliopisto-opetuksen yhteistoiminnallinen kehittäminen

The main aim of this work is to study the possibility of applying the cooperative learning approach to develop academic learning and teaching culture. In this work cooperative learning refers to a pedagogical approach that applies social psychological knowledge of group dynamics and small group teaching. Furthermore, theories of collaborative learning and organization development have been applied. Based on these theories a model of developing learning and teaching culture was developed. The model was tested in the development project that was carried out in the Faculty of Agriculture and Forestry of Helsinki University. The research questions were: How were the theories of cooperative and collaborative learning and organization development applied in the project? What kind of effects did the development project have on the learning and teaching culture? Through which kind of mechanisms did the project influence this culture? How should the development model be revised after the empirical test? The project lasted five years and the major part of the project consisted of a one-year pedagogical training course. Altogether 145 people (teachers, researchers, library staff, and students) participated in the training, two to three departments at a time. In the pedagogical training cooperative learning methods were widely used. A questionnaire was used to study effects of the development project. The questionnaire was sent to 87 people and 65.5 % answered it. Both the answers to the questionnaire and a sample of learning diaries (n=61) were used to study the mechanism of the project. A sample of the learning diaries consisted of two pedagogical training group members diaries. The frequency distributions were calculated as extrapolations from the answers to the structured questions. Furthermore the answers were classified by the main background variables. The analysis of the open answers to the questionnaire and the learning diaries were data-based. According to the answers to the questionnaire, the effects of the pedagogical training were as follows: The participants consider learning more as an active process of constructing knowledge. Furthermore they considered the individual learning styles and strategies, cooperation and motivation as more important part of the learning process than before the pedagogical training. The role of the teacher was viewed more challenging than before. Additionally the cooperation between teachers, other staff members and students had projected to increase. After the project had ended the teaching methods in the whole faculty were viewed to become varied and the teaching was considered to be more valued than before. According to the answers to the questionnaire, the project influenced through the following ways: the project stimulated the change process, provided new methods for learning and teaching, had an effect on conceptions of learning and teaching and facilitated meaningful communication with others (staff and students). The analysis of the learning diaries supported these findings. In addition, the analysis of the learning diaries deepened the understanding of how the cooperative learning methods supported positive learning atmosphere and reduced the negative effect of the status differences between the members of the group. The critical comments in the learning diaries could be interpreted as collision between cooperative and traditional teaching culture. Cooperative learning gives theory-based methods to develop academic learning and teaching culture. The approach helps the developer to create positive collaborative learning environment and gives ways to support learning in small groups, which can promote cultural change. On the other hand, to understand the whole process of organization development and promote change the theories of organizations and more sosioconstructivist theory of learning are needed. Cooperative learning, collaborative learning, higher education, group dynamics, social constructionism, organisational culture, organisation development

Assessment of Nanoscience and Nanotechnology Initiatives in India

Nanotechnology is a new technology which is generating a lot of interest among academicians, practitioners and scientists. Critical research is being carried out in this area all over the world.Governments are creating policy initiatives to promote developments it the nanoscale science and technology developments. Private investment is also seeing a rising trend. Large number of academic institutions and national laboratories has set up research centers that are workingon the multiple applications of nanotechnology. Wide ranges of applications are claimed for nanotechnology. This consists of materials, chemicals, textiles, semiconductors, to wonder drug delivery systems and diagnostics. Nanotechnology is considered to be a next big wave of technology after information technology and biotechnology. In fact, nanotechnology holds the promise of advances that exceed those achieved in recent decades in computers and biotechnology. Much interest in nanotechnology also could be because of the fact that enormous monetary benefits are expected from nanotechnology based products. According to NSF, revenues from nanotechnology could touch $ 1 trillion by 2015. However much of the benefits are projected ones. Realizing claimed benefits require successful development of nanoscience andv nanotechnology research efforts. That is the journey of invention to innovation has to be completed. For this to happen the technology has to flow from laboratory to market. Nanoscience and nanotechnology research efforts have to come out in the form of new products, new processes, and new platforms.India has also started its Nanoscience and Nanotechnology development program in under its 10(th) Five Year Plan and funds worth Rs. One billion have been allocated for Nanoscience and Nanotechnology Research and Development. The aim of the paper is to assess Nanoscience and Nanotechnology initiatives in India. We propose a conceptual model derived from theresource based view of the innovation. We have developed a structured questionnaire to measure the constructs in the conceptual model. Responses have been collected from 115 scientists and engineers working in the field of Nanoscience and Nanotechnology. The responses have been analyzed further by using Principal Component Analysis, Cluster Analysis and Regression Analysis.

A Method for Comparing Scholarly Journals as Service Providers to Authors

When authors of scholarly articles decide where to submit their manuscripts for peer review and eventual publication, they often base their choice of journals on very incomplete information abouthow well the journals serve the authors’ purposes of informing about their research and advancing their academic careers. The purpose of this study was to develop and test a new method for benchmarking scientific journals, providing more information to prospective authors. The method estimates a number of journal parameters, including readership, scientific prestige, time from submission to publication, acceptance rate and service provided by the journal during the review and publication process. Data directly obtainable from the web, data that can be calculated from such data, data obtained from publishers and editors, and data obtained using surveys with authors are used in the method, which has been tested on three different sets of journals, each from a different discipline. We found a number of problems with the different data acquisition methods, which limit the extent to which the method can be used. Publishers and editors are reluctant to disclose important information they have at hand (i.e. journal circulation, web downloads, acceptance rate). The calculation of some important parameters (for instance average time from submission to publication, regional spread of authorship) can be done but requires quite a lot of work. It can be difficult to get reasonable response rates to surveys with authors. All in all we believe that the method we propose, taking a “service to authors” perspective as a basis for benchmarking scientific journals, is useful and can provide information that is valuable to prospective authors in selected scientific disciplines.

Silent Communication - A Challenge to Established Marketing Communication Practice

Purpose The paper examines the concept of silent communication and its implications in marketing communication. It defines silent communication and proposes an analytic framework enabling an expanded view of marketing communication. Design/methodology/approach By explicitly adopting a customer-oriented perspective, combined with insights from service marketing and relationship communication, the paper extends current models of marketing communication. Findings The paper identifies different types of silent communication and presents new perspectives on marketing communication. The authors outline a framework for understanding how the company can/cannot control different forms of marketing communication and discuss the implications of this. Research implications/limitations The paper concentrates on a conceptual analysis, offering a number of empirical illustrations. The conceptual development creates new research issues that should lead to a deeper understanding of customers’ meaning creation, actions and reactions. Practical implications Silent communication constitutes a managerial challenge as it is often invisible to the management. The paper points to the need to develop methods to reveal the effects of silent communication as well as create guidelines for managerially handling silent communication. Originality/value The customer-based perspective and the focus on silent communication provide a completely new approach to analysing and understanding marketing communication. The paper contributes to service marketing and marketing communication research by introducing conceptualisations of silent communication that have an interest for both academic research and practitioners.

How the development of condensation particle counters is reforming our view on atmospheric nucleation

Aerosol particles deteriorate air quality, atmospheric visibility and our health. They affect the Earth s climate by absorbing and scattering sunlight, forming clouds, and also via several feed-back mechanisms. The net effect on the radiative balance is negative, i.e. cooling, which means that particles counteract the effect of greenhouse gases. However, particles are one of the poorly known pieces in the climate puzzle. Some of the airborne particles are natural, some anthropogenic; some enter the atmosphere in particle form, while others form by gas-to-particle conversion. Unless the sources and dynamical processes shaping the particle population are quantified, they cannot be incorporated into climate models. The molecular level understanding of new particle formation is still inadequate, mainly due to the lack of suitable measurement techniques to detect the smallest particles and their precursors. This thesis has contributed to our ability to measure newly formed particles. Three new condensation particle counter applications for measuring the concentration of nano-particles were developed. The suitability of the methods for detecting both charged and electrically neutral particles and molecular clusters as small as 1 nm in diameter was thoroughly tested both in laboratory and field conditions. It was shown that condensation particle counting has reached the size scale of individual molecules, and besides measuring the concentration they can be used for getting size information. In addition to atmospheric research, the particle counters could have various applications in other fields, especially in nanotechnology. Using the new instruments, the first continuous time series of neutral sub-3 nm particle concentrations were measured at two field sites, which represent two different kinds of environments: the boreal forest and the Atlantic coastline, both of which are known to be hot-spots for new particle formation. The contribution of ions to the total concentrations in this size range was estimated, and it could be concluded that the fraction of ions was usually minor, especially in boreal forest conditions. Since the ionization rate is connected to the amount of cosmic rays entering the atmosphere, the relative contribution of neutral to charged nucleation mechanisms extends beyond academic interest, and links the research directly to current climate debate.

Kiinnostusta vai ahdistusta? : Opettajaksi opiskelevien akateemiset tunteet, motivaatio ja opiskelun ongelmat suhteessa hyvinvointiin ja menestykseen aktivoivalla luentokurssilla

Previous studies indicate that positive learning experiences are related to academic achievement as well as to well-being. On the other hand, emotional and motivational problems in studying may pose a risk for both academic achievement and well-being. Thus, emotions and motivation have an increasing role in explaining university students learning and studying. The relations between emotions, motivation, study success and well-being have been less frequently studied. The aim of this study was to investigate what kind of academic emotions, motivational factors and problems in studying students experienced five days before an exam of an activating lecture course, and the relations among these factors as well as their relation to self-study time and study success. Furthermore, the effect of all these factors on well-being, flow experience and academic achievement was examined. The term academic emotion was defined as emotion experienced in academic settings and related to studying. In the present study the theoretical background to motivational factors was based on thinking strategies and attributions, flow experience and task value. Problems in studying were measured in terms of exhaustion, anxiety, stress, lack of interest, lack of self-regulation and procrastination. The data were collected in December 2009 in an activating educational psychology lecture course by using a questionnaire. The participants (n=107) were class and kindergarten teacher students from the University of Helsinki. Most of them were first year students. The course grades were also gathered. Correlations and stepwise regression analysis were carried out to find out the factors that were related to or explained study success. The clusters that presented students´ problems in studying as well as thinking strategies and attributions, were found through hierarchical cluster analysis. K-means cluster analysis was used to form the final groups. One-way analysis of variance, Kruskal-Wallis test and crosstabs were conducted to see whether the students in different clusters varied in terms of study success, academic emotions, task value, flow, and background variables. The results indicated that academic emotions measured five days before the exam explained about 30 % of the variance of the course grade; exhaustion and interest positively, and anxiety negatively. In addition, interest as well as the self-study time best explained study success on the course. The participants were classified into three clusters according to their problems in studying as well as their thinking strategies and attributions: 1) ill-being, 2) carefree, and 3) committed and optimistic students. Ill-being students reported most negative emotions, achieved the worst grades, experienced anxiety rather than flow and were also the youngest. Carefree students, on the other hand, expressed the least negative emotions and spent the least time on self-studying, and like committed students, experienced flow. In addition, committed students reported positive emotions the most often and achieved the best grades on the course. In the future, more in-depth understanding how and why especially young first year students experience their studying hard is needed, because early state of the studies is shown to predict later study success.

Kestävästi vaihtuva muoti : Kestävän muodin mahdollisuudet ja haasteet vaatesuunnittelijan näkökulmasta

The concept of sustainable fashion covers not only the ecological and ethical matters in fashion and textile industries but also the cultural and social affairs, which are equally intertwined in this complex network. Sustainable fashion does not have one explicit or well-established definition; however, many researchers have discussed it from different perspectives. This study provides an overview of the principals, practices, possibilities, and challenges concerning sustainable fashion. It focuses particularly on the practical questions a designer faces. The aim of this study was to answer the following questions: What kind of outlooks and practices are included in sustainable fashion? How could the principles of sustainable fashion be integrated into designing and making clothes? The qualitative study was carried out by using the Grounded Theory method. Data consisted mainly of academic literature and communication with designers who practice sustainable fashion. In addition to these, several websites and journalistic articles were used. The data was analyzed by identifying and categorizing relevant concepts using the constant comparative method, i.e. examining the internal consistency of each category. The study established a core category, around which all other categories are integrated. The emerged concepts were organized into a model that pieces together different ideas about sustainable fashion, namely, when the principles of sustainable development are applied to fashion practices. The category named Considered Take and Return is the core of the model. It consists of various design philosophies that form the basis of design practice, and thus it relates to all other categories. It is framed by the category of Attachment and Appreciation, which reflects the importance of sentiment in design practice, for example the significance of aesthetics. The categories especially linked to fashion are Materials, Treatments of Fabrics and Production Methods. The categories closely connected with sustainable development are Saving Resources, Societal Implications, and Information Transparency. While the model depicts separate categories, the different segments are in close interaction. The objective of sustainable fashion is holistic and requires all of its sections to be taken into account.