769 resultados para subject choice


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Tutkimuksessa tarkastellaan yliopisto-opiskelua, opintojen kokemista ja niiden kulkua alkaen koulutusvalinnoista. Lisäksi tutkimuksessa pyritään ymmärtämään ja kuvaamaan yliopisto-opintojen aikaista koulutuksen vaihtamista prosessina. Kyseessä on seurantatutkimus Turun yliopistossa vuonna 1998 aloittaneesta opiskelijakohortista. Tutkittavat opiskelijat valittiin sillä perusteella, että he vastasivat kolmeen opintoja koskevaan kyselyyn ja olivat vähintään kolmen vuoden ajan läsnä olevina opiskelijoina. Opiskelijat (n=440) jaettiin neljään vertailuryhmään: 1) opintoihinsa tyytyväiset, 2) ensimmäisen vuoden jälkeen koulutusta vaihtaneet, 3) toisen vuoden jälkeen koulutusta vaihtaneet ja 4) koulutusta vaihtaa halunneet. Tutkimusaineisto koostuu kolmesta kyselystä, opintorekisteriaineistosta ja koulutusta opintojen aikana vaihtaneiden opiskelijoiden haastatteluista (n=22). Kyselyt tehtiin ensimmäisen, toisen ja kolmannen opintovuoden kevätlukukausilla ja haastattelut vuonna 2002, jolloin opiskelijat opiskelivat Turun yliopistossa neljättä tai viidettä vuotta. Kyselyiden avulla tutkittiin eroavatko koulutusta vaihtaneet opiskelijat muista opiskelijoista rakenteellisilta tekijöiltään tai opintokokemuksissaan. Opintorekisteriaineiston perusteella tutkittiin eroavatko koulutusta vaihtaneet opiskelijat koulutuksessa pysyneistä opiskelijoista opintojen kulussa. Kyselyiden ja haastatteluiden avulla tutkittiin minkälaisia tietoja ja odotuksia opiskelijoilla oli yliopisto-opiskelusta ollut ennen opintojen aloittamista. Haastatteluiden perusteella tutkittiin mitä syitä koulutuksen vaihtamisen taustalla oli ja minkälaisina kertomuksina koulutuksen vaihtamisprosessi näyttäytyi. Koulutusta vaihtaneet opiskelijat erosivat koulutuksessa pysyneistä opiskelijoista aiemman koulutuksen määrän, iän ja perheellisyyden suhteen. Verrattaessa ensimmäisen ja toisen vuoden jälkeen koulutusta vaihtaneita opiskelijoita keskenään havaittiin näillä ryhmillä olevan erilainen perhetausta. Koulutusta valittaessa tärkein tekijä oli kiinnostus alaa kohtaan. Toiseksi voimakkain hakutekijä oli muilla paitsi ensimmäisen vuoden jälkeen koulutusta vaihtaneilla valmiudet haluttuun ammattiin. Vuorostaan ensimmäisen vuoden jälkeen koulutusta vaihtaneilla toiseksi tärkein tekijä hakeutumisessa oli helppo sisäänpääsy opintoihin. Suurin osa opiskelijoista oli päässyt ensisijaisesti haluamaansa koulutukseen. Koulutusta myöhemmin vaihtaneissa ryhmissä ja koulutuksen vaihtoa halunneiden ryhmässä ensisijaisesti haluttuun koulutukseen päässeitä oli alle puolet. Odotukset opiskelusta eivät täysin täyttyneet ensimmäisen puolen vuoden opiskelun aikana. Tutkittujen ryhmien välillä havaittiin eroja kokemuksissa koulutuksen sopivuudesta itselle. Koulutuksen vaihtaminen oli myönteinen kokemus, ja uusi koulutus koettiin aiempaa koulutusta sopivammaksi itselle. Kolmannen vuoden kevätlukukaudella omaa koulutusta kohtaan koettu kiinnostus oli voimakasta muissa ryhmissä paitsi koulutuksen vaihtoa halunneissa. Harvimmin positiivisia tunteita opiskelua kohtaan kokivat vaihtoa halunneet opiskelijat. Koulutuksen vaihtaminen vähensi opintoihin kiinnittymättömyyttä. Koulutuksen vaihtoa halunneiden kokemukset nykyisen koulutuksensa ilmapiiristä olivat negatiivisimpia. Koulutuksen vaihtaminen vaikutti myönteisesti myös opetuksen kokemiseen. Opinnot etenivät kaikissa tutkituissa ryhmissä tasaisesti. Koulutuksen vaihtamisen jälkeisenä vuonna opinnot etenivät vaihtaneissa ryhmissä keskimääräistä enemmän. Haastatteluiden mukaan pääasiallisia syitä koulutuksen vaihtamiselle olivat päätyminen toissijaiseen koulutukseen ja pettyminen aloittamaansa koulutukseen. Narratiivien analyysin avulla tutkimuksessa löydettiin neljä erilaista tarinaa vaihtamisprosessista: 1) toissijaisesta koulutuksesta ensisijaiseen koulutukseen vaihtaminen, 2) ensisijaiseen koulutukseen pettyminen, 3) kiinnostavampaan koulutukseen ajautuminen ja 4) oman alan löytyminen etsinnän kautta. Vaikka koulutuspolitiikassa koulutuksen vaihtaminen nähdään ongelmana, oli se tämän tutkimuksen mukaan opiskelijalle myönteinen kokemus. Tämän tutkimuksen perusteella tulisikin kiinnittää huomiota opiskelijoihin, jotka haluaisivat vaihtaa koulutuksesta toiseen. Heillä opintojen eteneminen osoittautui hitaimmaksi ja opintokokemukset negatiivisimmiksi. Koulutusta vaihtaneiden opiskelijoiden opintojen eteneminen näytti hitaalta verrattuna opintoihinsa tyytyväisiin opiskelijoihin. Koulutuksen vaihtamisen jälkeen opintojen eteneminen kuitenkin nopeutui ja opintotyytyväisyys lisääntyi.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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OBJECTIVE To assess Spanish and Portuguese patients' and physicians' preferences regarding type 2 diabetes mellitus (T2DM) treatments and the monthly willingness to pay (WTP) to gain benefits or avoid side effects. METHODS An observational, multicenter, exploratory study focused on routine clinical practice in Spain and Portugal. Physicians were recruited from multiple hospitals and outpatient clinics, while patients were recruited from eleven centers operating in the public health care system in different autonomous communities in Spain and Portugal. Preferences were measured via a discrete choice experiment by rating multiple T2DM medication attributes. Data were analyzed using the conditional logit model. RESULTS Three-hundred and thirty (n=330) patients (49.7% female; mean age 62.4 [SD: 10.3] years, mean T2DM duration 13.9 [8.2] years, mean body mass index 32.5 [6.8] kg/m(2), 41.8% received oral + injected medication, 40.3% received oral, and 17.6% injected treatments) and 221 physicians from Spain and Portugal (62% female; mean age 41.9 [SD: 10.5] years, 33.5% endocrinologists, 66.5% primary-care doctors) participated. Patients valued avoiding a gain in bodyweight of 3 kg/6 months (WTP: €68.14 [95% confidence interval: 54.55-85.08]) the most, followed by avoiding one hypoglycemic event/month (WTP: €54.80 [23.29-82.26]). Physicians valued avoiding one hypoglycemia/week (WTP: €287.18 [95% confidence interval: 160.31-1,387.21]) the most, followed by avoiding a 3 kg/6 months gain in bodyweight and decreasing cardiovascular risk (WTP: €166.87 [88.63-843.09] and €154.30 [98.13-434.19], respectively). Physicians and patients were willing to pay €125.92 (73.30-622.75) and €24.28 (18.41-30.31), respectively, to avoid a 1% increase in glycated hemoglobin, and €143.30 (73.39-543.62) and €42.74 (23.89-61.77) to avoid nausea. CONCLUSION Both patients and physicians in Spain and Portugal are willing to pay for the health benefits associated with improved diabetes treatment, the most important being to avoid hypoglycemia and gaining weight. Decreased cardiovascular risk and weight reduction became the third most valued attributes for physicians and patients, respectively.

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We explain the choice between franchising and vertical integration by estimating a model of relative performance in a sample of 250 Spanish car distributors, controlling for self-selection and including environmental factors. The method allows us to estimate performance counterfactuals. Organizational choice seemingly aims to contain moral hazard for both distributors and manufacturers but it is subject to start-up constraints and switching costs. While the market for franchises remained underdeveloped, information asymmetries led to the opening of integrated outlets. Their subsequent conversion into franchised outlets probably involved prohibitive transaction costs. Consequently, they performed worse than would have been expected had they been independent, as confirmed by the systematic improvement observed when they were in fact converted. The timing of such conversions suggests that switching costs were prohibitive until firms developed a substantial cushion of temporary contracts, previously forbidden by regulation.

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This paper proposes new methodologies for evaluating out-of-sample forecastingperformance that are robust to the choice of the estimation window size. The methodologies involve evaluating the predictive ability of forecasting models over a wide rangeof window sizes. We show that the tests proposed in the literature may lack the powerto detect predictive ability and might be subject to data snooping across differentwindow sizes if used repeatedly. An empirical application shows the usefulness of themethodologies for evaluating exchange rate models' forecasting ability.

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It Has Often Been Assumed That a Country's Tax Level, Tax Structure Progressivity and After-Tax Income Distribution Are Chosen by Voters Subject Only to Their Budget Constraints. This Paper Argues That At Certain Income Levels Voters' Decisions May Be Constrained by Bureaucratic Corruption. the Theoretical Arguments Are Developed in Asymmetry Limits the Capacity of the Fiscal System to Generate Revenues by Means of Direct Taxes. This Hypothesis Is Tested Witha Sample of International Data by Means of a Simultaneous Equation Model. the Distortions Resulting From Corruption Ar Captured Through Their Effects on a Latent Variable Defined As the Overall Fiscal Structure. Evidence Is Found of Causality Running From This Latent Variable to the Level of Taxes and the Degree of After Tax Inequality.

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It has been suggested that the evidence used to support a decision to move our eyes and the confidence we have in that decision are derived from a common source. Alternatively, confidence may be based on further post-decisional processes. In three experiments we examined this. In Experiment 1, participants chose between two targets on the basis of varying levels of evidence (i.e., the direction of motion coherence in a Random-Dot-Kinematogram). They indicated this choice by making a saccade to one of two targets and then indicated their confidence. Saccade trajectory deviation was taken as a measure of the inhibition of the non-selected target. We found that as evidence increased so did confidence and deviations of saccade trajectory away from the non-selected target. However, a correlational analysis suggested they were not related. In Experiment 2 an option to opt-out of the choice was offered on some trials if choice proved too difficult. In this way we isolated trials on which confidence in target selection was high (i.e., when the option to opt-out was available but not taken). Again saccade trajectory deviations were found not to differ in relation to confidence. In Experiment 3 we directly manipulated confidence, such that participants had high or low task confidence. They showed no differences in saccade trajectory deviations. These results support post-decisional accounts of confidence: evidence supporting the decision to move the eyes is reflected in saccade control, but the confidence that we have in that choice is subject to further post-decisional processes.

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The determination of skeletal loading conditions in vivo and their relationship to the health of bone tissues, remain an open question. Computational modeling of the musculoskeletal system is the only practicable method providing a valuable approach to muscle and joint loading analyses, although crucial shortcomings limit the translation process of computational methods into the orthopedic and neurological practice. A growing attention focused on subject-specific modeling, particularly when pathological musculoskeletal conditions need to be studied. Nevertheless, subject-specific data cannot be always collected in the research and clinical practice, and there is a lack of efficient methods and frameworks for building models and incorporating them in simulations of motion. The overall aim of the present PhD thesis was to introduce improvements to the state-of-the-art musculoskeletal modeling for the prediction of physiological muscle and joint loads during motion. A threefold goal was articulated as follows: (i) develop state-of-the art subject-specific models and analyze skeletal load predictions; (ii) analyze the sensitivity of model predictions to relevant musculotendon model parameters and kinematic uncertainties; (iii) design an efficient software framework simplifying the effort-intensive phases of subject-specific modeling pre-processing. The first goal underlined the relevance of subject-specific musculoskeletal modeling to determine physiological skeletal loads during gait, corroborating the choice of full subject-specific modeling for the analyses of pathological conditions. The second goal characterized the sensitivity of skeletal load predictions to major musculotendon parameters and kinematic uncertainties, and robust probabilistic methods were applied for methodological and clinical purposes. The last goal created an efficient software framework for subject-specific modeling and simulation, which is practical, user friendly and effort effective. Future research development aims at the implementation of more accurate models describing lower-limb joint mechanics and musculotendon paths, and the assessment of an overall scenario of the crucial model parameters affecting the skeletal load predictions through probabilistic modeling.

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Depending on the regulatory regime they are subject to, governments may or may not be allowed to hand out state aid to private firms. The economic justification for state aid can address several issues present in the competition for capital and the competition for transfers from the state. First, there are principal-agent problems involved at several stages. Self-interested politicians might enter state aid deals that are the result of extensive rent-seeking activities of organized interest groups. Thus the institutional design of political systems will have an effect on the propensity of a jurisdiction to award state aid. Secondly, fierce competition for firm locations can lead to over-spending. This effect is stronger if the politicians do not take into account the entirety of the costs created by their participation in the firm location race. Thirdly, state aid deals can be incomplete and not in the interest of the citizens. This applies if there are no sanctions if firms do not meet their obligations from receiving aid, such as creating a certain number of jobs or not relocating again for a certain amount of time. The separation of ownership and control in modern corporations leads to principal-agent problems on the side of the aid recipient as well. Managers might receive personal benefits from subsidies, the use of which is sometimes less monitored than private finance. This can eventually be to the detriment of the shareholders. Overall, it can be concluded that state aid control should also serve the purpose of regulating the contracting between governments and firms. An extended mandate for supervision by the European Commission could include requirements to disincentive the misuse of state aid. The Commission should also focus on the corporate governance regime in place in the jurisdiction that awards the aid as well as in the recipient firm.

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Most primates live in highly complex social systems, and therefore have evolved similarly complex methods of communicating with each other. One type of communication is the use of manual gestures, which are only found in primates. No substantial evidence exists indicating that monkeys use communicative gestures in the wild. However, monkeys may demonstrate the ability to learn and/or use gestures in certain experimental paradigms since they¿ve been shown to use other visual cues such as gaze. The purpose of this study was to investigate if ten brown capuchin monkeys (Cebus apella) were able to use gestural cues from monkeys and a pointing cue from a human to obtain a hidden reward. They were then tested to determine if they could transfer this skill from monkeys to humans and from humans to monkeys. One group of monkeys was trained and tested using a conspecific as the cue giver, and was then tested with a human cue-giver. The second group of monkeys began training and testing with a human cue giver, and was then tested with a monkey cue giver. I found that two monkeys were able to use gestural cues from conspecifics (e.g., reaching) to obtain a hidden reward and then transfer this ability to a pointing cue from a human. Four monkeys learned to use the human pointing cue first, and then transferred this ability to use the gestural cues from conspecifics to obtain a hidden reward. However, the number of trials it took for each monkey to transfer the ability varied considerably. Some subjects spontaneously transferred in the minimum number of trials needed to reach my criteria for successfully obtaining hidden rewards (N = 40 trials), while others needed a large number of trials to do so (e.g. N = 190 trials). Two subjects did not perform successfully in any of the conditions in which they were tested. One subject successfully used the human pointing cue and a human pointing plus vocalization cue, but did not learn the conspecific cue. One subject learned to use the conspecific cue but not the human pointing cue. This was the first study to test if brown capuchin monkeys could use gestural cues from conspecifics to solve an object choice task. The study was also the first to test if capuchins could transfer this skill from monkeys to humans and from humans to monkeys. Results showed that capuchin monkeys were able to flexibly use communicative gestures when they were both unintentionally given by a conspecific and intentionally given by a human to indicate a source of food.

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BACKGROUND: There is evidence for the superiority of two-implant overdentures over complete dentures in the mandible. Various anchorage devices were used to provide stability to overdentures. The aim of the present study was to compare two designs of a rigid bar connecting two mandibular implants. MATERIALS AND METHODS: Completely edentulous patients received a new denture in the maxilla and an implant-supported overdenture in the mandible. They were randomly allocated to two groups (A or B) with regard to the bar design. A standard U-shaped bar (Dolder bar) was used connecting the two implants in a straight line. For comparison, precision attachments were soldered distal to the bar copings. Group A started the study with the standard bar (S-bar), while group B started with the attachment-bar (A-bar). After 3 months, they had to answer a questionnaire (visual analogue scale [VAS]); then the bar design was changed in both groups. After a period of another 3 months, the patients had to answer the same questions; then they had the choice to keep their preferred bar. Now the study period was extended to another year of observation, and the patients answered again the same questionnaire. In vivo force measurements were carried out with both bar types at the end of the test periods. The prosthetic maintenance service carried out during the 6-month period was recorded for both bar types in both groups. Statistical analysis as performed with the SPSS statistical package (SPSS Inc., Chicago, IL, USA). RESULTS: Satisfaction was high in both groups. Group B, who had entered the study with the attachment bar, gave slightly better ratings to this type for four items, while in group A, no differences were found. At the end of the 6-month comparison period, all but one patient wished to continue to wear the attachment bar. Prosthetic service was equal in groups A and B, but the total number of interventions is significantly higher in the attachment bar. Force patterns of maximum biting were similar in both bar designs, but exhibited significantly higher axial forces in the attachment bar. CONCLUSIONS: Both bar designs provide good retention and functional comfort. High stability appears to be an important factor for the patients' satisfaction and oral comfort. Rigid retention results in a higher force impact and appears to evoke the need for the retightening of occlusal screws, resulting in more maintenance service.

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The University of the 21st century has to establish links with society and prepare students for the demands of the working world. Therefore, this article is a contribution to the integral preparation of university students by proposing the use of authentic texts with social content in English lessons so that students acquire emotional and social competencies while still learning content. This article will explain how the choice of texts on global issues such as racism and gender helps students to develop skills such as social awareness and critical thinking to deepen their understanding of discrimination, injustice or gender differences in both oral and written activities. A proposal will be presented which involves using the inauguration speech from Mandela's presidency and texts with photographs of women so that students analyse them whilst utilising linguistic tools that allow them to explore a text's social dimension.

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National Highway Traffic Safety Administration, Technology Assessment Division, Washington, D.C.

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Mode of access: Internet.

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Transportation Department, Office of University Research, Washington, D.C.