Lärarens direktiv i svenskundervisningen i grundskolan

Tarkastelen pro gradu -tutkielmassani opettajan direktiivejä eli ohjailevia lausumia peruskoulun ruotsinopetuksessa. Aineistoni koostuu kuudennella ja kahdeksannella luokalla nauhoitetuista ruotsintunneista, ja sitä on yhteensä 3 tuntia 15 minuuttia. Analysoin sitä, miten opettaja muotoilee direktiivinsä, annetaanko direktiivit suomeksi vai ruotsiksi ja miten opettajan ohjaileva puhe vaikuttaa oppilaiden käytökseen. Direktiivien tehtävänä on saada oppilaat toimimaan opettajan toivomalla tavalla. Direktiivit ovat yleensä vierusparin etujäseniä, jolloin oppilaiden kielellinen tai ei-kielellinen reaktio muodostaa jälkijäsenen. Opettajan direktiivi voi olla myös jälkijäsen, jolloin se on reaktio siihen, mitä oppilaat ovat tehneet. On preferoitua, että oppilaat noudattavat opettajan ohjeita. Opettaja voi käyttää direktiivinä imperatiivia, kysymys- ja väitelausetta sekä nominaalilauseketta. Imperatiivi on tunnusmerkitön tapa ilmaista ohjailua, ja opettaja käyttää sitä rutiininomaisissa kehotuksissa. Kysymyslauseen muotoisia direktiivejä opettaja käyttää varmistaakseen, että opetus voi jatkua, ja säilyttääkseen työrauhan. Väitelauseilla opettaja puolestaan antaa erilaisia ohjeita ja säätelee työrauhaa. Nominaalilauseketta opettaja voi käyttää direktiivinä antaessaan oppilaalle vastausvuoron tai kieltäessään oppilasta häiritsemästä työrauhaa. Suomea käytetään direktiiveissä, jotka liittyvät kieliopin opettamiseen, kun taas ruotsiksi ilmaistaan usein toistuvat direktiivit. Usein opettaja käyttää ensin ruotsia ja toistaa sitten direktiivin suomeksi. Opettajan institutionaaliseen rooliin kuuluu se, että hänellä on auktoriteetti luokkahuoneessa. Siksi oppilaiden on noudatettava opettajan ohjeita, ja tavallisesti he tekevätkin niin, mutta siihen kuluu joskus paljon aikaa.

Enzyme-catalysed non-oxidative decarboxylation of aromatic acids: I.Purification and spectroscopic properties of 2,3 dihydroxybenzoic acid decarboxylase from Image Image

In order to understand the molecular mechanism of non-oxidative decarboxylation of aromatic acids observed in microbial systems, 2,3 dihydroxybenzoic acid (DHBA) decarboxylase from Image Image was purified to homogeneity by affinity chromatography. The enzyme (Mr 120 kDa) had four identical subunits (28 kDa each) and was specific for DHBA. It had a pH optimum of 5.2 and Km was 0.34mM. The decarboxylation did not require any cofactors, nor did the enzyme had any pyruvoyl group at the active site. The carboxyl group and hydroxyl group in the Image -position were required for activity. The preliminary spectroscopic properties of the enzyme are also reported.

Hydrothermal phase equilibria in Ln2O3-H2O-CO2 systems : I. The lighter lanthanides

Phase diagrams for Nd2O3-H2O-CO2 and Gd2O3-H2O-CO2 systems at 1500 atm are given along with the results of selected runs in La, Sm and Eu systems. The stable phases in systems of La and Nd, are Ln(OH)CO3-B, Ln2O2CO3-II and LnOOH, in addition to the Ln(OH)3 phase at extremely low partial pressures of CO2 in the system. The systems become more and more complex with decreasing ionic radi and the number of stable carbonate phases increases. Ln2(CO3)3 · 3H2O orthorhombic (tengerate-like phase) is stable from Sm to Gd in addition to the other phases. The Gd(OH)CO3-A (ancylite-like phase) is hydrothermally stable at XCO2 greater-or-equal, slanted 0.5 while its hexagonal polymorph, Gd(OH)CO3-B is stable at low partial pressures of CO2 in the system.

Non-linear resonance in strings under narrow band random excitation, part I: Planar response and stability

Non-linear planar response of a string to planar narrow band random excitation is investigated in this paper. A response equation for the mean square deflection σ2 is obtained under a single mode approximation by using the equivalent linearization technique. It is shown that the response is triple valued, as in the case of harmonic excitation, if the centre frequency of excitation Ω lies in a certain specified range. The triple valued response occurs only if the excitation bandwidth β is smaller than a critical value βcrit which is a monotonically increasing function of the intensity of excitation. An approximate method of investigating the almost sure asymptotic stability of the solution is presented and regions of instability in the Ω-σ2 plane have been charted. It is shown that planar response can become unstable either due to an unbounded growth of the in-plane component of motion or due to a spontaneous appearance of an out-of-plane component.

Om naturens förvandlingar : Vetenskap, kunskap och frihet i Rudolf Steiners tidiga tänkande. Idéhistoriska perspektiv på Waldorfpedagogiken

TRANSFORMATIONS OF NATURE Science, Knowledge and Freedom in the Early Thinking of Rudolf Steiner. Perspectives on Waldorf Education in the light of the History of Ideas Waldorf Education is based on the worldview that Rudolf Steiner (1861-1925) developed to a wide-ranging anthroposophical movement in the first decades of the 20th century. This thesis takes as its departure the early thinking of Rudolf Steiner that precedes anthroposophy, and its main purpose is to uncover the tradition of ideas represented in Steiner´s early life and which, in different ways, have emerged in the practice of Waldorf Education. Through systematic analysis I attempt to bring to light different aspects of Steiner’s early thinking: his concept of science, his epistemological startingpoints and his philosophy of freedom. By departing from J. W. Goethe’s qualitative concept of science, Steiner strove in his early works to formulate a monistic worldview which appears to be closely related to the Romantic Movement and its philosophy of nature. Characteristic traits of his thinking are, on the one hand, a critique of a one-sided enlightenment and, on the other hand, an aspiration to see the world as a living organic unity. Human beings can, by developing our intuitive faculties, get a deeper understanding of the indissoluble relationship between man and nature. Against this background Steiner´s early thinking can be read as a special kind of romantic development narrative. Steiner’s early thinking also opens the way for romantic perspectives on Waldorf Education. It appears that many central aims and conceptions in Waldorf Education can be illuminated by the epistemological perspective upon which Steiner elaborated early in his life. An organic curriculum, phenomenological didactics and high ideal of freedom can be considered seen as educational applications of conceptions that played an important role in Goethe and his age. Thus, Waldorf Education provides in our contemporary society an exceptional set of educational values: a holistic education with romantic undertones.

Nonlinear I-V characteristics of senmiconducting paints

The oxide-based high resistivity semiconducting Paints can be used on high voltage insulators for improved performance. They were found to exhibit nonlinear I-V characteristics which are reported here. The paints exhibited power law relationship and a sharp transition in merhanism of conduction at a critical voltage.

Tidigt fullständigt svenskt språkbad i Esbo

Avhandlingen behandlar tidigt fullständigt svenskt språkbad i Esbo. Arbetet utreder vad tidigt fullständigt språkbad innebär samt vad språkbadsföräldrars och språkbadslärares åsikter om språkbadet i Esbo är. Undersökningen omfattar 60 familjer samt samtliga lärare (14 st) som arbetar med språkbad i Esbo. Undersökningen består av två enkäter; en till språkbadsföräldrar och en tillspråkbadslärare. Av de 60 enkäter som sändes ut till språkbadsföräldrarna besvarades 45, dvs. 75%. 12 lärare av 14, dvs. 86%, besvarade den andra enkäten. Det är viktigt att känna till centrala begrepp i anslutning till tvåspråkighet, då man talar om andraspråkstillägnandet i språkbad. I detta arbete presenteras en modell (Sahi, 1999) som åskådliggör centrala begrepp i anslutning till tvåspråkighet. Tidigtfullständigt språkbad är ett program som är planerat att omfatta hela grundskolan. Språkbad är ämnat för enspråkiga majoritetsbarn i ett tvåspråkigt land. Dessa barn tillägnar sig minoritetsspråket i skolan. Språkbadet är inte enbart ett program, utan även en metod. Skillnaden mellan språkbad och traditionell undervisning i språk är att man i språkbadet betonar kommunikation framom grammatik. Målet medspråkbadet är funktionell tvåspråkighet. Många faktorer inverkar på andraspråkstillägnandet i språkbadet. I detta arbete betonas attitydernas och motivationens betydelse. Språkbad kräver en medveten och aktiv insats av föräldrarna. Vidare betonar litteraturen som behandlar språkbad undervisningsmetodernas betydelse samt språkbadslärarens viktiga roll. Föräldrarna är nöjda med språkbadsprogrammet, eftersom det givit goda resultat och motsvarat förväntningarna. Enligt föräldrarna är språkbad ett mjukt, modernt och effektivt program. Föräldrarna anser att barnen lär sig badspråket på ett naturligt sätt och även får en öppnare inställning till språk och kulturer. Föräldrarna betonar lärarnas viktiga insatser samt kontinuitetens betydelse. Vidare tycker föräldrarna att språkbadet borde inledas i ett tidigare skede och att eleverna borde ha mera kontakt med badspråket utanför skolan. Målet med att barnen går i språkbad är, enligt föräldrarna, att barnen ska förstå och tala språket flytande samtkänna kulturen som hör ihop med språket. Både föräldrarna och lärarna tycker att språkbadsklasserna är för stora och att det är brist på material. Lärarna anser att man mer än tidigare borde informera allmänheten, beslutsfattare samt föräldrar om verksamheten. Därtill tycker lärarna att samarbetet mellan daghem och skola samt specialundervisningen borde utvecklas. Lärarna betonar att språkbad inte lämpar sig för alla barn. Lärarna anser sig främst behöva praktiska råd av andra som arbetar med språkbad samt teoretisk kunskap. Både föräldrarna och lärarna tycker att språkbadsverksamheten i Esbo borde koordineras och att språkbadselevernas prestationer noggrant borde följas upp. Nyckelord: Tvåspråkighet, Språkbad, Andraspråkstillägnande Keywords: Bilingualism, Immersion, Second Language Aquisition.

Microsomal 11-Alpha-hydroxylation of progesterone in Aspergillius ochraceus: Part I: Characterization of the hydroxylase system

Microsomes (105,000xg sediment) prepared from induced cells of A.ochraceus was found to hydroxylate progesterone to 11-Alpha-hydroxyprogesterone (11a-OHP) in high yields (85-�90% in 30 min.) in the presence of NADPH and O2. The pH optimum for the hydroxylase was found to be 7.7. However, for the isolation of active microsomes grinding of the mycelium should be carried out at pH 8.3. Metyrapone, carbon monoxide, SKF-525A, p-CMB and N-methyl maleimide inhibited the hydroxylase activity indicating the involvement of cytochrome P-450 system. The inhibition of the hydroxylase by cytochrome Image and the presence of high levels of NADPH-cytochrome Image reductase in induced microsomes suggest that the reductase could be one of the components in the hydroxylase system.

The limit to wheat water-use efficiency in eastern Australia. I. Gradients in the radiation environment and atmospheric demand

In the wheatbelt of eastern Australia, rainfall shifts from winter dominated in the south (South Australia, Victoria) to summer dominated in the north (northern New South Wales, southern Queensland). The seasonality of rainfall, together with frost risk, drives the choice of cultivar and sowing date, resulting in a flowering time between October in the south and August in the north. In eastern Australia, crops are therefore exposed to contrasting climatic conditions during the critical period around flowering, which may affect yield potential, and the efficiency in the use of water (WUE) and radiation (RUE). In this work we analysed empirical and simulated data, to identify key climatic drivers of potential water- and radiation-use efficiency, derive a simple climatic index of environmental potentiality, and provide an example of how a simple climatic index could be used to quantify the spatial and temporal variability in resource-use efficiency and potential yield in eastern Australia. Around anthesis, from Horsham to Emerald, median vapour pressure deficit (VPD) increased from 0.92 to 1.28 kPa, average temperature increased from 12.9 to 15.2°C, and the fraction of diffuse radiation (FDR) decreased from 0.61 to 0.41. These spatial gradients in climatic drivers accounted for significant gradients in modelled efficiencies: median transpiration WUE (WUEB/T) increased southwards at a rate of 2.6% per degree latitude and median RUE increased southwards at a rate of 1.1% per degree latitude. Modelled and empirical data confirmed previously established relationships between WUEB/T and VPD, and between RUE and photosynthetically active radiation (PAR) and FDR. Our analysis also revealed a non-causal inverse relationship between VPD and radiation-use efficiency, and a previously unnoticed causal positive relationship between FDR and water-use efficiency. Grain yield (range 1-7 t/ha) measured in field experiments across South Australia, New South Wales, and Queensland (n = 55) was unrelated to the photothermal quotient (Pq = PAR/T) around anthesis, but was significantly associated (r2 = 0.41, P < 0.0001) with newly developed climatic index: a normalised photothermal quotient (NPq = Pq . FDR/VPD). This highlights the importance of diffuse radiation and vapour pressure deficit as sources of variation in yield in eastern Australia. Specific experiments designed to uncouple VPD and FDR and more mechanistic crop models might be required to further disentangle the relationships between efficiencies and climate drivers.

I konstens namn - scenen som arbetsmiljö : Arbetsplatsmobbning ur skådespelarperspektiv

Workplace bullying is a topic of current interest in Finland. Workplace bullying is found in all professions, including the artistic ones. This thesis aims to explore workplace bullying from the view of the Finland-Swedish actors as a phenomenon that within dramatic art is difficult to define due to the fact that the body and emotions of an actor constitute his or her working tools. The research aims to deepen the understanding of the actors’ working situation, and particularly of the difficulties and problems actors face when exercising their job. The research problems are: What forms of bullying are the actors exposed to? Who is bullying? How is the bullying received by the actors, and what are the possible consequences? The theoretical orientation of this thesis is based upon dialogical philosophy where phenomenology, hermeneutics and dialog meet in an orientation where the unseen is emphasized and made visible. Artistic leadership should be based upon a pedagogic understanding that by an open and equal dialog with the Other recognizes human diversity. The narrative research was undertaken by using an interview guide for the interviews with eleven actors, six women and five men with the voice of a sixth man represented by an article. The interviews, each on average 118 minutes, were recorded and transcribed. The method of discursive analysis was initiated by numerous reflective readings based on analytic induction. The inductive part of the analysis consisted of mapping out the individual experiences of bullying where after the process of finding connecting common features in the extensive material took place. The coded data was then deductively grouped together according to the research problems, and subgroups were formed for deeper description. The research findings show that workplace bullying is an everyday occurrence within the field of dramatic art. Actors are bullied by theatre managers and directors as well as by colleagues and other personnel. The main areas of bullying is depreciation of one’s professional skills, the existing jargon, sexual harassment, collective bullying and bullying because of personal qualities. A significant finding concerning this problem was the existing culture of silence. Even if actually seeing and hearing a colleague being bullied, few stood up to defend the person being bullied because of fear of retaliation. Even the person actually being the object for bullying found it difficult to take any actions.

DNase I Site Mapping and Micrococcal Nuclease Digestion of Pachytene Chromatin Reveal Novel Structural Features

A comparison of the DNase I digestion products of the 32P-5’-end-labeled pachytene nucleosome core particles (containing histones H2A, TH2A, X2, H2B, THPB, H3a, nd H4) and liver nucleosome core particles (containing somatic histones H2A, H2B, H3, and H4) revealed that the cleavage sites that are 30, 40, and 110 nucleotidesa way from the 5’-enda re significantly more accessiblei n the pachytene core particles than in the liver core particles. These cleavage sites correspond to the region wherein H2B interacts with the nucleosome core DNA. These results, therefore, suggest that the histone-DNA interactiona t these sites in the pachytene core particles is weaker, possibly because of the presence of the histone variant THBB interacting at similar topological positions in the nucleosome core as that of its somatic counterpart H2B. Such a loosened structumrea y also be maintainede ven in the native pachytene chromatin since micrococcal nuclease digestion of pachytene nuclei resulted in a higher ratio of subnucleosomes (SN4 + SN?) to mononucleosomes than that observed liinv er chromatin

Datorstödda studier i hälso- och socialvård : MuPSiNet-projektet

The aim of the study was to explore why the MuPSiNet project - a computer and network supported learning environment for the field of health care and social work - did not develop as expected. To grasp the problem some hypotheses were formulated. The hypotheses regarded the teachers' skills in and attitudes towards computing and their attitudes towards constructivist study methods. An online survey containing 48 items was performed. The survey targeted all the teachers within the field of health care and social work in the country, and it produced 461 responses that were analysed against the hypotheses. The reliability of the variables was tested using the Cronbach alpha coefficient and t-tests. Poor basic computing skills among the teachers combined with a vulnerable technical solution, and inadequate project management combined with lack of administrative models for transforming economic resources into manpower were the factors that turned out to play a decisive role in the project. Other important findings were that the teachers had rather poor skills and knowledge in computing, computer safety and computer supported instruction, and that these skills were significantly poorer among female teachers who were in majority in the sample. The fraction of teachers who were familiar with software for electronic patient records (EPR) was low. The attitudes towards constructivist teaching methods were positive, and further education seemed to utterly increase the teachers' readiness to use alternative teaching methods. The most important conclusions were the following: In order to integrate EPR software as a natural tool in teaching planning and documenting health care, it is crucial that the teachers have sufficient basic skills in computing and that more teachers have personal experience of using EPR software. In order for computer supported teaching to become accepted it is necessary to arrange with extensive further education for the teachers presently working, and for that further education to succeed it should be backed up locally among other things by sufficient support in matters concerning computer supported teaching. The attitudes towards computing showed significant gender differences. Based on the findings it is suggested that basic skills in computing should also include an awareness of data safety in relation to work in different kinds of computer networks, and that projects of this kind should be built up around a proper project organisation with sufficient resources. Suggestions concerning curricular development and further education are also presented. Conclusions concerning the research method were that reminders have a better effect, and that respondents tend to answer open-ended questions more verbosely in electronically distributed online surveys compared to traditional surveys. A method of utilising randomized passwords to guarantee respondent anonymity while maintaining sample control is presented. Keywords: computer-assisted learning, computer-assisted instruction, health care, social work, vocational education, computerized patient record, online survey

Study of strontium compounds and minerals by X-ray absorption spectroscopy. I. K-edge shifts

The chemical shifts in the X-ray K-absorption edge of strontium in various compounds and in six minerals are measured using a single crystal X-ray spectrometer. Besides valence, the shifts are found to be governed by ionic charges on the absorbing ions, which are calculated employing Pauling's method. For the minerals the plot of chemical shift against the theoretically calculated ionic charges is used to determine the charges on the strontium ions.