Search results for " value"
showing 10 items of 3662 documents
MR-Tomographie versus CT-Arthrographie bei glenohumeralen Instabilitäten
1992
In a prospective study the diagnostic value of MRI compared to CT arthrography (CT-A) was evaluated in 26 patients with 27 instable shoulder joints. Surgical and/or arthroscopic correlation was available in all cases. Both methods showed a high accuracy (96% CT-A, 94% MRI) in the evaluation of the glenoid labrum. CT-A was significantly superior to MRI in the detection of capsular lesions (sensitivity 96% vs. 44%, accuracy 96% vs. 72%, negative predictive value 96% vs. 67%). CT-A and MRI results regarding humeral head fractures were similar; fractures of the glenoid rim were better detected by CT-A, the difference, however, was statistically not significant. Overall, CT-A proved to be superi…
Is time to joint replacement a valid outcome measure in clinical trials of drugs for osteoarthritis?
2003
The rate of radiographic joint space narrowing is commonly used today as a structural outcome measure in clinical trials evaluating potential disease-modifying drugs in patients with hip osteoarthritis, but this results in a continuous variable. Among the methods proposed to circumvent this problem, it has been suggested that the incidence of total hip arthoplasty (THA) provides a hard outcome measure. It is a dichotomized variable, easy to measure and sensitive to change, with acceptable intrinsic validity. However, because this measure is limited by the variability of factors underlying the decision to perform surgery and the length of waiting lists, it has been suggested that time to ful…
Poisto museokokoelmasta : museologinen arvokeskustelu kokoelmanhallinnan määrittäjänä
2016
This dissertation studies the issue of disposal in Finnish art museums. It is a research in the field of museology, in which museography plays a significant role. The field of museology functions as a science bridging theory and practice. In the research, museum collection management is divided into seven areas: acquisition, inventory, condition assessment, value assessment, conservation, upkeep and disposal. It is essential that collection management be viewed as a unified chain of operations, starting from acquisition and ending in disposal. This creates a bridge from the start of collection management to its end procedures, at which point the total disposal of an item is a possibility. A…
LE BÉNÉVOLAT POUR DES ÉVÉNEMENTS SPÉCIAUX: COMPARAISON ENTRE LA VALEUR ATTENDUE ET LA VALEUR PERÇUE
2016
Resumen: El fenómeno del voluntariado, como parte del sector no-lucrativo, puede ser estudiado desde una perspectiva de marketing como un comportamiento de consumo en el contexto de la realización de eventos especiales. En este estudio se busca explorar la dimensionalidad de la experiencia de ser voluntario en un megaevento religioso a través del concepto valor analizado con un enfoque diacrónico: pre-uso (valor esperado) vs. post-uso (valor percibido). Para ello, proponemos un estudio longitudinal sobre 711 voluntarios a través de dos análisis de componentes principales diferentes, antes y después del evento, sobre las mismas escalas de las dimensiones de valor. La estructura propuesta es …
The Motivation Scale for the Game (EMJ) : study of the use of the game in educational contexts
2014
Aunque el juego ha sido estudiado y descrito desde múltiples ópticas, relevando su importancia en el desarrollo humano, su uso en el ámbito educativo pareciera estar restringido mayoritariamente al nivel de educación parvularia. En este sentido, la motivación de los docentes por la integración de nuevas metodologías (incluido el juego) parece ser una variable relevante a la hora de estudiar el cambio y la mejora en educación. El objetivo de este artículo es presentar una escala que puede ayudar al estudio de la motivación por el uso del juego y reportar sus características psicométricas. La Escala de Motivación por el Juego (EMJ) ha sido construida a partir del Modelo de Expectativa y Valor…
Struggles for moral value and the reproduction of gendered and racialised hierarchies in online discussions of violence
2019
The article examines online discussions in Finland that focus on violence committed by Finnish women, on one hand, and non-white migrant men, on the other. Drawing on the perspective of sociology of value, the article illustrates how these discussions function as sites of struggles over moral worth in a contemporary context characterised by crises of both male and white hegemony. The authors suggest that, through the discussions, these current crises are projected on migrant men and certain groups of women, who thereby become construed as morally reprehensible. The analysis sheds light on processes of (re-)legitimating the moral virtue historically attached to both masculinity and whitenes…
Improving Economic Management Decisions in Forestry with the SorSim Assortment Model
2020
The sustainable supply of timber is one of the most important forest ecosystem services and a decisive factor determining the long-term profitability of forest enterprises. If timber production is to be economically viable, there must always be a way to analyse forest stands and trees felled for exploitation with regard to the wood assortments they contain. Only then can the expected timber yields, achieved by various silvicultural strategies or actions and different sorting options, be quantified with sufficient accuracy. The SorSim assortment simulator was developed for forest practitioners and forest scientists in Switzerland to realistically simulate the sorting of individual trees and …
Real options analysis as a tool for start-up company investment valuation
2015
Pro Gradu -tutkielman tavoitteena oli tutkia Real Option Analysis -metodin sopivuutta start-up yhtiön investoinnin arvonmääritykseen. Jotta tutkimuskysymykseen saatiin vastaus, tuli myös case-yhtiön liiketoimintasuunnitelma selvittää ja edelleen mitkä ovat liiketoiminnan potentiaaliset rahavirrat, joihin arvonmääritys perustuu. Tutkimusmenetelmä oli kvantitatiivinen case-tutkimus ja tutkimusmetodi oli konstruktiivinen ja deskriptiivinen. Tutkimuksessa konstruoitiin työkalu ja arvonmääritys case-yrityksen suunnitellulle investoinnille. Toisaalta tutkimuksessa kuvailtiin arvonmääritystä yleisesti sekä Real Options Analysis -metodia. Tutkimuksen pohjaksi tutustuttiin start-up yhtiöihin, arvonm…
Sensitivity analysis in investment project of biogas plant
2017
The article shows the practical value of biogas as the second generation biofuel. All the projects dealing with biogas are subjected to external risks, such as the change of market condition, customer needs, governmental regulation, etc. In conditions of uncertainty it is necessary for administration to concentrate on decisionmaking. Fluctuations of sales volume, energy resources and raw material prices, etc. should be taken into account. Sensitivity analysis can predict the result of negative external pheno mena. We developed the economic-mathematical model for the analysis of biogas complexes sensitivity. The profitability index as a criterion for the effectiveness of investment projects …
Numerical construction of the density-potential mapping
2018
We demonstrate how a recently developed method Nielsen et al. [Nielsen et al., EPL 101, 33001 (2013)] allows for a comprehensive investigation of time-dependent density functionals in general, and of the exact time-dependent exchange-correlation potential in particular, by presenting the first exact results for two- and three-dimensional multi-electron systems. This method is an explicit realization of the Runge–Gross correspondence, which maps time-dependent densities to their respective potentials, and allows for the exact construction of desired density functionals. We present in detail the numerical requirements that makes this method efficient, stable and precise even for large and rap…