536 resultados para motive
Resumo:
The goal was to define how growth creates problems in small companies with a staff of uner 20, and how the problems are solved. It is not about fast growing companies, but about smoothly or even slowly growing companies. The growth is started through the turnover and the main motive is to have a economic stability. Almost all the companies felt that the main reason for this strate-gic growth was to increase the competitivety. Growth was mainly from the domestic market, and new products and new markets. The biggest problem with this growth was providing capital and also a lack of reas-surance. In additinon to this it was dificult to find suitable personnel and there was a lack of time needed to plan and develop the operation. The lack of product develop-ment, was found to be a problem to some extent, particulary in smaller companies. The follow-up of the finances take place mainly through the profit and loss account, income statement and balance sheets. Apart from that they find the follow up by pro-duct was important. Another important element was to have company tailor-made consulting/sparring in order to develop the operation.
Resumo:
Tutkimuksen tavoitteena oli tapaustutkimuksen avulla analysoida ja kehittää case-organisaation siirtohinnoittelua ja siirtohinnoitteludokumentointia. Siirtohinnoittelun osalta analysoitiin tarkoitus, motiivi, vaikuttavat tekijät, tekniikka ja tavoitteet. Kun siirtohinnoittelu avaintekijät saatiin selvitettyä, keskityttiin siirtohinnoittelun dokumentointiin ja erityisesti siirtohinnoittelumenetelmien analysoitiin. Tutkielman teoriaosassa analysoitiin siirtohinnoittelua ja siirtohinnoitteludokumentointia käsittelevää kirjallisuutta ja tutkimuksia. Empiirisen osion aineisto kerättiin haastattelemalla, tutustumalla kohdeyrityksen dokumentteihin ja tietojärjestelmiin sekä osallistuvalla havainnoinnilla. Tutkielman empiirisessä osiossa tarkasteltiin kohdeyrityksen siirtohinnoittelua ja siirtohinnoitteludokumentointia. Tulokseksi saatiin, että sisäiset ohjeet, liiketoiminnalliset ja strategiset tavoitteet vaikuttivat eniten siirtohinnoitteluun. Jatkossa kohdeyrityksen tulisi kiinnittää enemmän huomiota siirtohinnoittelussaan kapasiteetteihin ja niistä aiheutuviin kustannuksiin. Kohdeyritys ei ole aikaisemmin suorittanut siirtohinnoitteludokumentointia. Siirtohinnoitteludokumentoinnin toteuttaminen on mahdollista saatujen tutkimustulosten avulla. Kustannusvoittolisämenetelmä on parhaiten kohdeyritykselle soveltuva siirtohinnoittelumenetelmä.
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RESUM L’aigua és un recurs limitat necessari per a l’establiment de qualsevol forma de vida sobre la Terra. Aquest recurs, es veu regit pel cicle hidrològic i durant les diferents fases del seu cicle, l’aigua pot ser captada per ser aprofitada per l’ésser humà. En els darrers anys, la necessitat d’aigua per a la població ha estat incrementada provocant un impacte negatiu sobre aquest recurs. Per aquest motiu sorgeix la necessitat de crear polítiques globals per protegir l’aigua que vagin encaminades a minimitzar l’efecte negatiu provocat per l’home. Tota captació d’aigua destinada al consum humà ha de garantir uns paràmetres de qualitat i per tal de poder aconseguir aquest objectiu amb eficàcia és imprescindible l’aplicació d’una eina legal molt important: els perímetres de protecció. A l’article 6 de la Llei de policia i protecció de les aigües del 31 de juliol del 1985, s’estableix que tota captació d’aigua potable haurà de quedar aïllada mitjançant un perímetre de protecció, a l’interior del qual no podrà dur-se a terme cap activitat sense prèvia autorització de Govern. Els objectius principals d’aquest estudi son recopilar la informació existent en referència a les captacions d’aigua i els seus respectius perímetres de protecció, elaborar una base de dades que pugui contenir tota la informació existent i elaborar cartografia especifica amb la finalitat de realitzar una diagnosi de la situació actual de les captacions i perímetres associats i identificar els principals riscos potencials existents en aquestes àrees. Entre les conclusions mes rellevants obtingudes amb aquest treball, cal destacar que s’ha constatat que algunes activitats antròpiques potencialment contaminants es troben situades en zones properes a les captacions destinades a consum humà, inclòs dins dels seus perímetres de protecció, amb el conseqüent risc que aquesta situació comporta.
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A healthy and balanced diet can reduce health problems, such as overweight and metabolic syndrome. In general, people have a considerably good knowledge of what constitutes a healthy diet and how they could achieve it with their food choices. Besides, people argue that health is among their top five food choice motives. Nevertheless, the prevalence of overweight is increasing and other food choice motives, such as taste, seem to conflict with the health. Liking for food does not necessarily determine acceptance alone, thus several non-sensory factors, such as brand, country of origin and nutrition claim, can also influence. Moreover, consumers are individuals in how they prioritize sensory and nonsensory factors of foods, but e.g. increasing age, female gender and health concern have been connected to a more health-oriented dietary behaviour. To sum up, identifying different factors that can increase the liking and consumption of healthy food is essential in order to develop more attractive healthful food products. Adding vitamins, minerals, fibre or other ingredients to a food product can be used to enrich the nutritional quality of the products. However, this may be difficult in practice as regards the sensory quality and pleasantness of the foods. Generally, consumers are not willing to compromise on taste in food. On the other hand, consumers are very heterogeneous in their likings, and their personal values and attitudes may interact with preferences for specific sensory characteristics. The aims of this study were to investigate the effects of intrinsic product characteristics on sensory properties and hedonic responses; to determine the impact of few non-sensory factors; and to examine the interaction between sensory and non-sensory factors with consumers’ demographics, values and attitudes in liking of healthy model foods. The results showed that product composition influenced sensory quality and had an effect on hedonic responses. Adding flaxseed to bakery products showed a significant improvement in the nutritional quality without negative effects on sensory properties. On the other hand, the fortification of wellness beverages with vitamins and minerals may impart off-flavours. In general, sweetness of yoghurts, freshness of wellness beverages and low intensity of rye bread flavour appealed to consumers. Information about the domestic origin of yoghurts and claiming a specific function for wellness beverages enhanced liking. However, consumers who were more concerned about their health and considered natural content as an important food choice motive, rated sourer and less sweet yoghurts and wellness beverages as more pleasant. In addition, interest in health increased the consumption of rye breads and other whole grain breads among adolescents. The results showed that the optimal product quality in terms of intrinsic and extrinsic factors differs between individual consumers, and personal values and food choice motives can be connected to preferences for specific sensory characteristics of foods. This indicates that each food product needs to be considered in relation to its specific market niche, and to which segment of consumer will respond most positively to its characteristics.
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Kansainvälisen talouden muutokset viimeisen parin vuosikymmenen aikana ovat saaneet aikaan uudenlaisen, kansainvälisen kilpailukentän yrityksille. Kilpailun lisääntyminen ja markkinoiden avautuminen ovat vaikuttaneet yritysten toimintaan, jolloin yhä useamman yrityksen pitää muokata ajattelutapaansa kohti globaalia toimintaympäristöä. Kansainvälisten suhteiden parantumisen, markkinoiden yhtenäistymisen sekä esimerkiksi Internetin ja kommunikaation lisääntymisen myötä yritysten on helpompi kansainvälistyä kuin aiemmin. Samalla toimijoiden määrä on kuitenkin lisääntynyt ja kilpailun määrä kasvanut. Usealle yritykselle kansainvälistyminen ja toiminnan laajentaminen ulkomaille onkin nykyään lähes elinehto, erityisesti kovasti kilpailuilla toimialoilla. Uusien tuoteinnovaatioiden, palveluiden ja teknologian nopea kehittyminen ovat muuttaneet tapoja tehdä kauppaa. Yritysten on helpompi siirtyä maasta toiseen rajojen auetessa, mikä on lisännyt kilpailua ja ekonomisten syklien lyhentymistä. Tilanteiden muuttuessa nopeasti yritysten on oltava valmiita ennakoimaan muutoksia, ja mahdollisesti laajennettava toimintojaan kotimarkkinoiden ulkopuolelle. Kansainvälistymiseen on olemassa monia eri tapoja, joista suosituin on viennin harjoittaminen. Tutkielma pyrkii esittelemään yleisiä syitä pk- yritysten kansainvälistymiseen, keskittyen erityisesti kansainvälistymisen ja viennin aloittamisen motiiveihin.
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Direct torque control (DTC) is a new control method for rotating field electrical machines. DTC controls directly the motor stator flux linkage with the stator voltage, and no stator current controllers are used. With the DTC method very good torque dynamics can be achieved. Until now, DTC has been applied to asynchronous motor drives. The purpose of this work is to analyse the applicability of DTC to electrically excited synchronous motor drives. Compared with asynchronous motor drives, electrically excited synchronous motor drives require an additional control for the rotor field current. The field current control is called excitation control in this study. The dependence of the static and dynamic performance of DTC synchronous motor drives on the excitation control has been analysed and a straightforward excitation control method has been developed and tested. In the field weakening range the stator flux linkage modulus must be reduced in order to keep the electro motive force of the synchronous motor smaller than the stator voltage and in order to maintain a sufficient voltage reserve. The dynamic performance of the DTC synchronous motor drive depends on the stator flux linkage modulus. Another important factor for the dynamic performance in the field weakening range is the excitation control. The field weakening analysis considers both dependencies. A modified excitation control method, which maximises the dynamic performance in the field weakening range, has been developed. In synchronous motor drives the load angle must be kept in a stabile working area in order to avoid loss of synchronism. The traditional vector control methods allow to adjust the load angle of the synchronous motor directly by the stator current control. In the DTC synchronous motor drive the load angle is not a directly controllable variable, but it is formed freely according to the motor’s electromagnetic state and load. The load angle can be limited indirectly by limiting the torque reference. This method is however parameter sensitive and requires a safety margin between the theoretical torque maximum and the actual torque limit. The DTC modulation principle allows however a direct load angle adjustment without any current control. In this work a direct load angle control method has been developed. The method keeps the drive stabile and allows the maximal utilisation of the drive without a safety margin in the torque limitation.
Resumo:
The aim of this thesis is to gain new understanding of health based on the work Penseés (Thoughts) by Blaise Pascal. The research interest originates from the motive of the heart for the greatness of man in conjunction with his baseness. The study is hermeneutic and the purpose is to describe health formulated as new abductive theses based on the assumption that caring science and caring theology can be conjoined in the same ontology. The work Penseés is, in Gadamer’s sense, alive since the text is constantly being made use of and is in this occurence interpreted through the requirements made by caring science. Pascal’s arguments continue through the historically effected consciousness while the interpretation is confronted with the ontological model of health. In the initial horizon we find the understanding of the motion of health and the extension towards text materials which is undertaken by Pascal’s Penseés. to open up the perspective and be able to project the horizon of the text. In the encounter with the text, the core content will first be discussed in an interpretative part after which the understanding gained will be summarized into new abductive assumptions. On the basis of Gadamer’s emphasis on the applications of the interpretations, the merging of the horizons will identify health as something desired by man, what he is and what he wants to accomplish. The creation of health is the reason of the heart, and on the basis of what man wants to confide in, the rise of health will be established. The totality of greatness and baseness of man is achieved by the accomplishment of health. That man owns spiritual devotedness means health whereas unhealthy means that he is insecure of his character and leads a life with ill-considered amusements. When according to Pascal, man’s desires and thoughts are joined in the heart, a connecting relation will arise. Hence the spiritual edification that man will fail to secure if he puts too much of his confidence in transient reason is included, something that is insufficient when it comes to understand the meaning of health.
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The home as ethos, an ethical dimension of human beings, is this study’s focus of interest. Can the home as ethos comprise motive and driving force for a human being? This dissertation has a mainly hermeneutic approach with a Caring Science interpretive horizon. Firstly, the purpose of this study is to develop the concept “home” through etymological and semantic analysis. The concept’s Caring Science content is also investigated. Secondly, the purpose of this study is to investigate, through the use of a history of ideas method, how the home as ethos is made visible and evident in public health nurses’ caring during the first half of the 20th century. Which motives compromise the driving force behind public health nurses’ caring? Which idea patterns are stressed? Material for the study’s concept determination consists of tymological dictionaries as well as Swedish language dictionaries published from 1850 – 2001. The results of the concept determination provide a preliminary idea-model, where dimensions such as ethos as a human being’s innermost room, human beings’ manner of being, and the metaphor “my home is my castle” are stressed. These results comprise the background of the history of ideas portion of the study. The study’s history of ideas investigation occurs through the evaluation and interpretation of historical sources focusing on the caring provided by public health nurses. Public health nurses comprise both the context and prevalent traditions during the time-period studied. The historical sources consist of three different types of sources, namely textbooks, archived material, and the professional nursing journals Epione and Sairaanhoitajatarlehti. The purpose is to rediscover fundamental idea-patterns through the thematic structuring of the patterns appearing in the historical sources. Three main idea-patterns and underlying themes are rediscovered: love- a fire which burns inside human beings; reverence for human beings and home; and the honor of responsibility. The emerging patterns are tightly interwoven and form a pattern. A new interpretation occurs, widening the study’s horizon and leading to the emergence of the theory-model’s contours. The study’s theory-model is formed from three different levels. Ethos as a human being’s innermost room- the spirit, encompasses a human being’s value base and the spirit that he/she is permeated with. Fundamental values are converted into an internal ethic, becoming visible in human beings’ manner of being- the manner of conduct. The metaphor “my home is my castle”- the tone, symbolizes the room where a human being’s abstract or concrete being lives. The spirit, the ethos, is expressed in a home’s culture and atmosphere, that is to say the tone of a home or how one lives in a room. Communion is a significant component in the creation of a culture and atmosphere. This study’s theory-model gives rise to a new perspective that can generate new patterns of action. The study’s theory-model results in a new historically-based view that create new patterns of action in care and Caring Science today.
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Pray and work. The development of Onni Puhakka: from innovator to nonconformist This ethnological biographical study examines the modernization which began in the mid-1800s, continued into the mid-1900s, and has changed Finnish society in many ways. This era has been studied on a general level quite extensively, but this work explores the life and everyday experiences of Onni Puhakka (1870−1955), a farmer who spent most of his life in the town of Liperi. The goal is to find new perspectives on the development of the modernization process in society through the experiences of an individual. In this study, a central theme is the rural co-operative movement represented in Finland by Pellervo as well as its development in this country and as a significant undertaking in Onni Puhakka’s life. The co-operative movement was one of the most significant sectors affecting modernization in rural communities. The main character in the study is the grandfather of the present author, and thus this research belongs to the newly accepted ethnological research tradition of studying one’s own community. Written documents, mainly collected and preserved by Onni Puhakka himself during his lifetime, form the research material. The material consists mainly of Puhakka’s extensive correspondence, personal notes and diaries, documents related to his farm, and photographs taken by him. Earlier research and other written material examining the general development of the period were used to provide a background for the study. The co-operative movement formed a comprehensive ideology for Onni Puhakka, in which the possibilities for the development of both individuals and the community were combined. His life was based on a religious conviction, and he felt that the co-operative movement was the application of Christian love for one’s neighbour in practice. At the beginning of his active working career, Puhakka was an innovator, a reformer at the forefront of progress, but quite soon he became a sworn critic of the development of the co-operative movement in particular. One of Puhakka’s criticisms of the co-operative movement was the shifting of decision-making power to professional managers and central organizations, far from the reach of local actors. A fundamental reason for his dissatisfaction was the development within the co-operative movement in which the ideological background was forgotten, and economic goals and making a profit took an excessive significance. This assessment of the co-operative movement made by Onni Puhakka and his predictions about its development were not unfounded. This has been shown by several studies examining the development of both the Pellervo and working class cooperative movements. The professionalization of management, managerialism, as well as the direct links between professional managers of local co-operatives and central organizations have lead to the situation in which fewer and fewer people make the decisions, and management has as its goal economic success and growth. Co-operative enterprises that have grown in size have become estranged from the everyday life of their members. Instead of taking care of relations with the membership of the co-op, competitive ability and the market share have become the most important concerns of the management. As the membership has become alienated, their interest in large-scale co-ops has also become largely economic. A significant change among the membership of the Pellervo movement occurred at the stage when the co-operative movement shifted from rural areas to urban centres. This meant that the commitment of the membership became much looser than it had been in the farmers’ production and consumer co-ops. From the point of view of its members, the nature of the co-operative movement has become diametrically opposed to its point of departure: the active members who previously formed the subject of the co-operative movement have become the object of the economic activities of that same movement. The co-operative movement has been transformed from the progressive agent of change of its early years into a business activity which no longer has any significant task as a social reformer. This study confirms the observations of the latest research on modernization which states that modernization has not been a straightforward and inevitable development that has lead to the present situation. For example, the criticism directed by Puhakka toward the co-operative movement includes information that shows that a few others who were initially actively involved also criticized the development of the movement. Despite his occasional frustration, Onni Puhakka continued his criticism and attempts to get the co-operative movement to change its course and return to its ‘roots’. In the early years of the cooperative movement he probably did not differ much from the other pioneers in the sense that many of them had adopted and internalized the same values and motive for being involved that he had. However, Puhakka differed from his colleagues in the sense that he was able to believe in what he called the “fundamental values” of the co-operative movement longer than many of them.
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The aim of this study was to simulate blood flow in thoracic human aorta and understand the role of flow dynamics in the initialization and localization of atherosclerotic plaque in human thoracic aorta. The blood flow dynamics in idealized and realistic models of human thoracic aorta were numerically simulated in three idealized and two realistic thoracic aorta models. The idealized models of thoracic aorta were reconstructed with measurements available from literature, and the realistic models of thoracic aorta were constructed by image processing Computed Tomographic (CT) images. The CT images were made available by South Karelia Central Hospital in Lappeenranta. The reconstruction of thoracic aorta consisted of operations, such as contrast adjustment, image segmentations, and 3D surface rendering. Additional design operations were performed to make the aorta model compatible for the numerical method based computer code. The image processing and design operations were performed with specialized medical image processing software. Pulsatile pressure and velocity boundary conditions were deployed as inlet boundary conditions. The blood flow was assumed homogeneous and incompressible. The blood was assumed to be a Newtonian fluid. The simulations with idealized models of thoracic aorta were carried out with Finite Element Method based computer code, while the simulations with realistic models of thoracic aorta were carried out with Finite Volume Method based computer code. Simulations were carried out for four cardiac cycles. The distribution of flow, pressure and Wall Shear Stress (WSS) observed during the fourth cardiac cycle were extensively analyzed. The aim of carrying out the simulations with idealized model was to get an estimate of flow dynamics in a realistic aorta model. The motive behind the choice of three aorta models with distinct features was to understand the dependence of flow dynamics on aorta anatomy. Highly disturbed and nonuniform distribution of velocity and WSS was observed in aortic arch, near brachiocephalic, left common artery, and left subclavian artery. On the other hand, the WSS profiles at the roots of branches show significant differences with geometry variation of aorta and branches. The comparison of instantaneous WSS profiles revealed that the model with straight branching arteries had relatively lower WSS compared to that in the aorta model with curved branches. In addition to this, significant differences were observed in the spatial and temporal profiles of WSS, flow, and pressure. The study with idealized model was extended to study blood flow in thoracic aorta under the effects of hypertension and hypotension. One of the idealized aorta models was modified along with the boundary conditions to mimic the thoracic aorta under the effects of hypertension and hypotension. The results of simulations with realistic models extracted from CT scans demonstrated more realistic flow dynamics than that in the idealized models. During systole, the velocity in ascending aorta was skewed towards the outer wall of aortic arch. The flow develops secondary flow patterns as it moves downstream towards aortic arch. Unlike idealized models, the distribution of flow was nonplanar and heavily guided by the artery anatomy. Flow cavitation was observed in the aorta model which was imaged giving longer branches. This could not be properly observed in the model with imaging containing a shorter length for aortic branches. The flow circulation was also observed in the inner wall of the aortic arch. However, during the diastole, the flow profiles were almost flat and regular due the acceleration of flow at the inlet. The flow profiles were weakly turbulent during the flow reversal. The complex flow patterns caused a non-uniform distribution of WSS. High WSS was distributed at the junction of branches and aortic arch. Low WSS was distributed at the proximal part of the junction, while intermedium WSS was distributed in the distal part of the junction. The pulsatile nature of the inflow caused oscillating WSS at the branch entry region and inner curvature of aortic arch. Based on the WSS distribution in the realistic model, one of the aorta models was altered to induce artificial atherosclerotic plaque at the branch entry region and inner curvature of aortic arch. Atherosclerotic plaque causing 50% blockage of lumen was introduced in brachiocephalic artery, common carotid artery, left subclavian artery, and aortic arch. The aim of this part of the study was first to study the effect of stenosis on flow and WSS distribution, understand the effect of shape of atherosclerotic plaque on flow and WSS distribution, and finally to investigate the effect of lumen blockage severity on flow and WSS distributions. The results revealed that the distribution of WSS is significantly affected by plaque with mere 50% stenosis. The asymmetric shape of stenosis causes higher WSS in branching arteries than in the cases with symmetric plaque. The flow dynamics within thoracic aorta models has been extensively studied and reported here. The effects of pressure and arterial anatomy on the flow dynamic were investigated. The distribution of complex flow and WSS is correlated with the localization of atherosclerosis. With the available results we can conclude that the thoracic aorta, with complex anatomy is the most vulnerable artery for the localization and development of atherosclerosis. The flow dynamics and arterial anatomy play a role in the localization of atherosclerosis. The patient specific image based models can be used to diagnose the locations in the aorta vulnerable to the development of arterial diseases such as atherosclerosis.
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Acquisitions are a way for a company to grow, enter new geographical areas, buy out competition or diversify. Acquisitions have recently grown in both size and value. Despite of this, only approximately 25 percent of acquisitions reach their targets and goals. Companies making serial acquisitions seem to be exceptionally successful and succeed in the majority of their acquisitions. The main research question this study aims to answer is: “What issues impact the selection of acquired companies from the point of view of a serial acquirer? The main research question is answered through three sub questions: “What is a buying process for a serial acquirer like?”, “What are the motives for a serial acquirer to buy companies?” and “What is the connection between company strategy and serial acquisitions?”. The case company KONE is a globally operating company which mainly produces and maintains elevators and escalators. Its headquarter is located in Helsinki, Finland. The company has a long history of making acquisitions and does 20- 30 acquisitions a year. By a key person interview, the acquisition process of the case company is compared with the literature about successful serial acquirers. The acquisition motives in this case are reflected upon three of the acquisition motive theories by Trautwein: efficiency theory, monopoly theory and valuation theory. The linkage between serial acquisitions and company strategy is studied through the key person interview. The main research findings are that the acquisition process of KONE is compatible with a successful acquisition process recognized in literature (RAID). This study confirms the efficiency theory as an acquisition motive and more closely the operational synergies. The monopoly theory can only vaguely be supported by this study, but cannot be totally rejected because of the structure of the industry. The valuation theory does not get any support in this study and can therefore be rejected. The linkage between company strategy and serial acquisitions is obvious and making acquisitions can be seen as growth strategy and a part of other company strategies.
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The purpose of this study was to examine and expand understanding concerning young Finnish registered nurses (RN) with an intention to leave the profession and the related variables, specifically when that intention has emerged before the age of 30. The overall goal of the study was to develop a conceptual model in relation to young RNs’ intention to leave the profession. Suggestions for policymakers, nurse leaders and nurse managers are presented for how to retain more young RNs in the nursing workforce. Suggestions for future nursing research are also provided. Phase I consists of two sequential integrative literature reviews of 75 empirical articles concerning nurses’ intention to leave the profession. In phase II, data had been collected as part of the Nurses’ Early Exit (NEXT) study, using the BQ-12 structured postal questionnaire. A total of 147 young RNs participated in the study. The data were analysed with statistical methods. In phase III, firstly, an in-depth interpretive case study was conducted in order to understand how young RNs explain and make sense of their intention to leave the profession. The data in this study consisted of longitudinal career stories by three young RNs. The data was analysed by using narrative holistic-content and thematic methods. Secondly, a total of 15 young RNs were interviewed in order to explore in-depth their experiences concerning organizational turnover and their intent to leave the profession. The data was analysed using conventional content analysis. Based on earlier research, empirical research on the young RNs intention to leave the profession is scarce. Nurses’ intention to leave the profession has mainly been studied with quantitative descriptive studies, conducted with survey questionnaires. Furthermore, the quality of previous studies varies considerably. Moreover, nurses’ intention to leave the profession seems to be driven by a number of variables. According to the survey study, 26% of young RNs had often considered giving up nursing completely and starting a different kind of job during the course of the previous year. Many different variables were associated with an intention to leave the profession (e.g. personal burnout, job dissatisfaction). According to the in-depth inquiries, poor nursing practice environments and a nursing career as a ‘second-best’ or serendipitous career choice were themes associated with young RNs’ intention to leave the profession. In summary, young RNs intention to leave the profession is a complex phenomenon with multiple associated variables. These findings suggest that policymakers, nurse leaders and nurse managers should enable improvements in nursing practice environments in order to retain more young RNs. These improvements can include, for example, adequate staffing levels, balanced nursing workloads, measures to reduce work-related stress as well as possibilities for advancement and development. Young RNs’ requirements to provide high-quality and ethical nursing care must be recognized in society and health-care organizations. Moreover, sufficient mentoring and orientation programmes should be provided for all graduate RNs. Future research is needed into whether the motive for choosing a nursing career affects the length of the tenure in the profession. Both quantitative and in-depth research is needed for the comprehensive development of nursing-turnover research.
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In photosynthesis, light energy is converted to chemical energy, which is consumed for carbon assimilation in the Calvin-Benson-Bassham (CBB) cycle. Intensive research has significantly advanced the understanding of how photosynthesis can survive in the ever-changing light conditions. However, precise details concerning the dynamic regulation of photosynthetic processes have remained elusive. The aim of my thesis was to specify some molecular mechanisms and interactions behind the regulation of photosynthetic reactions under environmental fluctuations. A genetic approach was employed, whereby Arabidopsis thaliana mutants deficient in specific photosynthetic protein components were subjected to adverse light conditions and assessed for functional deficiencies in the photosynthetic machinery. I examined three interconnected mechanisms: (i) auxiliary functions of PsbO1 and PsbO2 isoforms in the oxygen evolving complex of photosystem II (PSII), (ii) the regulatory function of PGR5 in photosynthetic electron transfer and (iii) the involvement of the Calcium Sensing Receptor CaS in photosynthetic performance. Analysis of photosynthetic properties in psbo1 and psbo2 mutants demonstrated that PSII is sensitive to light induced damage when PsbO2, rather than PsbO1, is present in the oxygen evolving complex. PsbO1 stabilizes PSII more efficiently compared to PsbO2 under light stress. However, PsbO2 shows a higher GTPase activity compared to PsbO1, and plants may partially compensate the lack of PsbO1 by increasing the rate of the PSII repair cycle. PGR5 proved vital in the protection of photosystem I (PSI) under fluctuating light conditions. Biophysical characterization of photosynthetic electron transfer reactions revealed that PGR5 regulates linear electron transfer by controlling proton motive force, which is crucial for the induction of the photoprotective non-photochemical quenching and the control of electron flow from PSII to PSI. I conclude that PGR5 controls linear electron transfer to protect PSI against light induced oxidative damage. I also found that PGR5 physically interacts with CaS, which is not needed for photoprotection of PSII or PSI in higher plants. Rather, transcript profiling and quantitative proteomic analysis suggested that CaS is functionally connected with the CBB cycle. This conclusion was supported by lowered amounts of specific calciumregulated CBB enzymes in cas mutant chloroplasts and by slow electron flow to PSI electron acceptors when leaves were reilluminated after an extended dark period. I propose that CaS is required for calcium regulation of the CBB cycle during periods of darkness. Moreover, CaS may also have a regulatory role in the activation of chloroplast ATPase. Through their diverse interactions, components of the photosynthetic machinery ensure optimization of light-driven electron transport and efficient basic production, while minimizing the harm caused by light induced photodamage.
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Tutkimus käsittelee noottikriisin suomalaista kuvaa. Noottikriisi on saanut nimensä Neuvostoliiton Suomelle 30.10.1961 antamasta nootista, jonka mukaan Länsi-Saksan aseellinen varustautuminen aiheutti sellaisen sotilaallisen uhkan, että vuoden 1948 yya-sopimuksen mukaiset sotilaalliset konsultaatiot olivat perusteltuja. Presidentti Urho Kekkonen ja pääministeri Nikita Hruštšov sopivat kuitenkin runsaan kolmen viikon kuluttua, ettei niitä pidetä. Noottikriisi on ollut hyvin kiistanalainen. Eniten on erimielisyyttä aiheuttanut nootin motiivi. Siksi tämän tutkimuksen pääaiheena ovat sen tulkinnat suomalaisten kirjoittamissa painetuissa teksteissä nootin jättämisen jälkeisestä päivästä vuoteen 2013. Erimielisyys johtuu pääasiassa käsityksestä, että noottia ei lähetetty Länsi-Saksan aiheuttaman uhkan takia vaan Kekkosen auttamiseksi vuoden 1962 presidentinvaaleissa. Tätä tulkintaa yksinään tai yhdistettynä yhteen tai useampaa muuhun tekijään on myös kannatettu eniten. Kekkonenkin ilmaisi päiväkirjassaan, että tarkoituksena oli hänen tukemisensa. Julkisuudessa hän ei kuitenkaan sanonut koskaan niin eksplisiittisesti. Erityinen piirre ovat vaihtelut huomattavan monen akateemisenkin kirjoittajan tulkinnoissa. Sama koskee sanomalehtiä. Monet nimesivät jälkeenpäin nootin tarkoitukseksi Kekkosen auttamisen, vaikka olivat aluksi kirjoittaneet jotain muuta. Ilmiö paljastaa että sanomalehdet harjoittivat heti nootin saapumisen jälkeen itsesensuuria.
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The aim of the study and research questions: The aim of this study is to illuminate how caring communion can aid in promoting health as becoming in elderly people in the context of natural caring. The target group of the study consists of elderly citizens living at home. The focus of this thesis is on the concept of communion and how caring communion can affect the inner health resources in a patient’s inner health domain, as well as how caring communion can support health as becoming and inner health resources in the elderly. The main research questions of this study are the following: 1) what does communion mean? 2) what does caring communion mean? 3) what is the connection between caring communion and health? Theoretical perspective: The theoretical perspective of this qualitative study relies on the caritative caring theory as developed by scholars of caring sciences at the Åbo Academi University’s Vasa unit. The caritas motive is based on an ethos built on a consideration of togetherness, i.e. caring communion, a place where one feels at home and where one can be the person one was meant to be. Methodology: A hermeneutic research approach based on Gadamer (1997) permeates the study. This entails that understanding and interpretation become central. The study conducted in the thesis is divided into three sub-studies. Sub-study one and two are based on ontological determination whereas the third sub-study is carried out by contextual determination. The first sub-study is conducted by etymological and semantic analysis of the concept of communion (gemenskap) based on Koort (1975) and the second sub-study by determining the basic epistemological category of the concept based on Eriksson (2010b). Sub-study three is conducted through content analysis of 18 multidisciplinary and 13 caring science articles and dissertations based on Kvale (2009). The aim in the third sub-study is to define caring communions in various contexts of meaning based on Eriksson´s model of conceptual determination (2010b). All studies are interpreted through hermeneutic interpretation where the continuous movement from a part of a whole, to the whole, to part again, leads to new understanding. Finally, the findings from all the three sub-studies are compared to the concepts of pre-understanding and the inner-health-domain model of Wärnås (2002). Results: The results of the study offer a description of the dimensions of caring communion and a model that illuminates how caring communion can further health as becoming. The fundamentals of caring communion rest on the idea of a human being’s absolute right to dignity as a base for communion. The concept of communion contains a moral, an ethical, and a spiritual component. In communion, there exists a moral and ethical responsibility and a willingness to commit oneself. The individual is part of a connection or relation and knows the aim and course for the communion. A caring connection, a caring culture, a caring atmosphere and caring listening are characteristics of caring communion. In caring communion, the elderly feel trusting and see themselves as unique, powerful, and valuable. The model demonstrates that when the elderly are able to rest in caring communion, the virtues of courage and faith become strong and desire for life awaken within the elderly and health as becoming becomes possible. Conclusions: The outcome of the study is that all communion is not necessarily caring communion. In order for communion to be caring and for the elderly to achieve health as becoming, there are certain criteria that must be met. This is especially important when designing activities for the elderly in the context of natural caring.