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372 Uppsatser om Uncertainty - Sida 1 av 25

Ovisshetens uttryck : En empirisk studie baserad på berättelser om ovisshet.

Background: Many people within the health care system experience Uncertainty. Uncertainty can be described as a feeling, a condition or as a phenomenon. Uncertainty is often associated with stress and an emotional burden among patients. It?s important for the nurse to have knowledge about the expressions of Uncertainty to get a higher appreciation for the patients? situation.

Uppamma mod och utjämna makt : Ett aktionsforskningsprojekt där arbetsredskap utformades tillsammans med sjuksköterskestudenter för att kunna lindra för personer att leva med ovisshet.

Uncertainty is a well-known phenomenon that is recurring in biographies, imaginative literature and science, but is less studied in nursing science. The aim of this participatory action research project was to, in collaboration with nursing students; explore nursing activities for relieving patients? Uncertainty. A qualitative approach was chosen with focus groups and the text was content analyzed. The students studied their third semester on a nursing program.

Kvantifiering av osäkerheter i lyftkraftsmodellen

With today´s power uprates in BWR reactors the bundle lift force has become aproblem. The lift force is calculated using a best estimate approach and the resultfrom the calculation should pass the existing lift force margin. Lift force margin isdefined so that the lift force may not exceed 80 % of the fuel weight. The margin issupposed to cover all the uncertainties that exist in the lift force calculations.However, no Uncertainty analysis has been conducted to quantify the uncertainties.In this report the uncertainties in the lift force model have been quantified. Each inputparameter to the lift force model which has been assumed to have an Uncertainty isassigned a probability distribution.

Ovisshet, ett begrepp att räkna med. En begreppsanlys

Abstract This Concept Analysis according to Walker & Avant (1995) studies the concept of Uncertainty in the nursing context. It consists of four parts where Uncertainty in general have been encircled in a semantic analysis (part one) and a qualitative content analysis consisting of an questionnaire, distributed to the staff members at one nursing and medicine institution, with an open question about the meaning of Uncertainty (part two). The third part is a literature study of the nursing context to find out how Uncertainty is described (part three). Part four is the actual concept analysis based on the three first parts. Uncertainty in the nursing context is an individual conscious experience witch is changeable and impressionable. It is chained together with its antecendents and consequences.

Systematiskt arbete för att hantera osäkerheter vid mätning : vid Q-Med AB i Uppsala

This report is about helping Q-Med AB in Uppsala to start its implementation of Uncertainty of measurements analyses in their manufacturing department. Prior to this, the company relied solely on personal experience or did not take this Uncertainty into consideration at all during different kind of measurements, which means that some of the processes that the company previously believed were within specified acceptance limits, will actually fail when considering these sources of uncertainties.Q-Med AB needed some sort of instruction to help the company, in a systematic way, to investigate different types of disorders that are affecting all kinds of measurements. This instruction includes a short summary about measurements and Uncertainty of measurements in general and a detailed procedure about how these uncertainties are going to be handled in their daily work.The goal was to be able to use this instruction to systematically locate, eliminate (when possible) and analyze all kinds of disorders when measuring. Q-Med is using a lot of different types of instruments when measuring different types of quantities, including temperature, mass, pressure and density. This instruction will hereafter be used for every instrument, regardless of quantity and type of instrument.The instruction is tested through 4 different kinds of measurements, for mass, temperature and humidity.

Elektronisk Handel : Framtagning av två implementeringsmodeller

This report is about helping Q-Med AB in Uppsala to start its implementation of Uncertainty of measurements analyses in their manufacturing department. Prior to this, the company relied solely on personal experience or did not take this Uncertainty into consideration at all during different kind of measurements, which means that some of the processes that the company previously believed were within specified acceptance limits, will actually fail when considering these sources of uncertainties.Q-Med AB needed some sort of instruction to help the company, in a systematic way, to investigate different types of disorders that are affecting all kinds of measurements. This instruction includes a short summary about measurements and Uncertainty of measurements in general and a detailed procedure about how these uncertainties are going to be handled in their daily work.The goal was to be able to use this instruction to systematically locate, eliminate (when possible) and analyze all kinds of disorders when measuring. Q-Med is using a lot of different types of instruments when measuring different types of quantities, including temperature, mass, pressure and density. This instruction will hereafter be used for every instrument, regardless of quantity and type of instrument.The instruction is tested through 4 different kinds of measurements, for mass, temperature and humidity.

Investering i tidig läkemedelsutveckling. En studie om hur man tar beslut under osäkerhet.

This case study aims to explore how decision making is performed under circumstances characterised by high Uncertainty. We have identified and interviewed two types of organisations dealing with investments in pharmaceutical drug development, a business characterised by high Uncertainty. We have found that the two types of organisations we have interviewed display different decision making behaviour evaluating the same type of investment. Further we have explained these differences in decision making behaviour by using relevant decision making theories. This study has showed that different forms of decision making are appropriate depending on the conditions facing the decision maker..

Osäkerhet i energisimuleringar av flerbostadshus : Analys av fem nybyggnationer

Since energy simulations are used to verify that projected residential buildings will reach the current energy requirements it is important that the results are reliable.This report investigates the extent of Uncertainty in energy simulations, estimates the causes of the Uncertainty and its economic and environmental consequences.The method used in this report is based on three validation methods; empirical validation, analytical validation and comparative validation. The analysis was carried out for five multi-family dwellings in Uppsala with installed meters for energy measurements. One of these objects, Klockarlunden, was studied in more detail than the others.The results show that the deviations are between 10 and 29% for the studied objects, which means that the Uncertainty is estimated to be at least 29%. All simulations underestimate the buildings need of energy. The simulation for Klockarlunden can predict the energy consumption to be within the range of 46-98 kWh/m2year with 90% confidence level based on the current Uncertainty.

Osäkerheter vid riskanalyser i samband med transport av farligt gods

Risk analysis in connection with transportation of dangerous goods is associated with great Uncertainty. In addition there are a number of specific problems that the risk analyst faces when risks associated with transportation of dangerous goods are to be analysed. In this report those problems and uncertainties are described.One of the most important conclusions in this report is that Uncertainty analysis within risk analysis in connection to transportation of dangerous goods has to be made more effective..

Realoptioners förklaringsvärde och praktiska tillämpbarhet: En tillämpning på den svenska onlinespelmarknaden

Real options analysis is a method for assigning value to flexibility in decisions, coming from Uncertainty in future outcomes. This thesis ascertains to what degree this method is superior to traditional net present value analysis, with regards to ease of implementation in relation to the benefits from being able to measure the total value. Real options analysis is evaluated with a case study of the Swedish online gambling market, and conducted with the binomial framework of Copeland and Antikarov (2003). The authors find the sensible use of real options dependant on the specific situation to which it is applied, i.e. a certain degree of future Uncertainty and managerial flexibility is necessary for justification of the increased workload.

Restenos efter PC1 (ballongvidgning i hjärtats kranskärl): Upplevelser ur ett patientperspektiv

Background: The intention of this study was to clarify the patients perspective of what it means to suffer fiom documented restenosis after one or more Percutaneous Coronary Intervention (PCI). Aim: The aim of this qualitative study was to ascertain the patients experience of restenosis. Method: Nine patients were interviewed. They had undergone at least one PC1 and two had also undergone Coronary Arterio Bypass Grafting (CABG). Data collection and analysis were done simultaneously according to Grounded Theory methodology and were continued until new interviews provided no additional information, i.e saturation was met.

Bestämning av osäkerheten hos skattningar av tyngdaccelerationen

In this master's thesis the problem of determining the Uncertainty for an estimator of an unknown parameter is considered. The case we study is the estimation of gravity using a reversible pendulum. This involves the estimation of the point where two regression lines intersect. The estimated gravity is a function the coordinates of this point. One way to determine the Uncertainty of this estimator is to use bootstrap methods.

Photovoltaic installations and land allocation under uncertainty : a real option approach

A real option model is developed to examine the crucial factors affecting the agricultural firms? decision to quit the production and rent out the land to a company building a PV power plant. The public policies in support of investments in renewable energies have created the conditions for a market regarding investments in PV installations in agricultural areas.The decision to switch offers to the agricultural firm and to society several economical, social and environmental benefits, representing sustainability. However, PV installations in agricultural areas require the allocation of a certain land area. By assigning a part of land to PV installations, thereby the area of land allocated to agricultural production decreases.

Risk och osäkerhet vid inträde på den svenska apoteksmarknaden: En studie om nya aktörer på en marknad under omreglering

The Swedish pharmacy market will be re-regulated in July 2009 which will present private actors with an opportunity to enter the market. Several risks and uncertainties are associated with such an entry. The purpose of this thesis is to increase the understanding of identification and management of risks and uncertainties associated with entering the Swedish pharmacy market. We also intend to investigate similarities and differences in risk identification and risk management as well as create an understanding of the underlying reasons for these similarities and differences. Three companies interested in entering the market have been interviewed and the interviews were conducted with an open approach to avoid influencing the companies? answers.

Demokrati och vetenskap - ett problemfyllt förhållande

What role should science play in democracy? Political scientists often assume that it is possible to demarcate between ?instrumental? and ?moral? knowledge, and argue that citizens and/or politicians should use their moral knowledge to agree upon political goals and then apply the instrumental knowledge of scientists to achieve them. This straightforward view is challenged by writers in science studies, who identify three major problems in the use of science in democracy: Uncertainty, risk and hidden values. They suggest that these problems could be solved through citizen participation.In this essay I perform an analysis of the internal logic of their suggestion. Is it likely that citizen participation enhances the democratic decision making process so as to reduce the problems? The internal analysis shows that it is rational to advocate citizen participation by reasons of legitimacy.

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