Search results for "ICT."
showing 10 items of 7941 documents
Tinkering with the two-to-one interview: Reflections on the use of two interviewers in qualitative constructionist inquiry
2021
Abstract Typically, qualitative interviews implicate a single interviewer. In this article, we consider an alternative comprising the simultaneous, active involvement of two interviewers. We base our considerations on experiences using the two-to-one interview in a nationwide research project on disability and physical activity. In addition to untapping and developing a qualitative interview method, the article provides an example in action of tinkering in qualitative inquiry. Tinkering entails a constant questioning of what to do, what is best, and what is appropriate within each moment of the research. Echoing social constructionist scholars, we argue that this flexible approach is useful…
A series expansion of the extended Debye-H�ckel equation and application to linear prediction of stability constants
1996
The Debye-Hückel semiempirical extended equation is frequently used to calculate activity coefficients of chemical species and equilibrium constants at ionic strengths different from those used in their experimental evaluation. A series expansion of the extended Debye-Hückel equation is proposed here and checked with experimental data taken from the literature. The expansion is linear in the ionic parameters and yields a geometrical series which converges rapidly and that enables the accurate calculation of interpolated and extrapolated activity coefficients and equilibrium constants by simple and multiple linear regression without previous knowledge of the ionic parameters.
Intellectual Capital and Company Value
2014
AbstractThe bulk of traditional corporate valuation methods reflect historical performance, while it is necessary to also take into consideration the value which is off-balance-sheet and possible growth. Large differences exist between company market and book value, and a part of this can be explained by intellectual capital. The aim of the study is to make an empirical investigation of the impact of intellectual capital on company value. Empirical results show that one can find mixed results regarding relationship between value added intellectual coefficient VAICTM and company value.
Targeting Acute Leukemia and Cancer by High-Affinity T-Cell-Receptor Transfer
2003
Accumulation and subsequent overexpression of human mdm2 (hdm2) and altered p53 protein is associated with high-level presentation of hdm2 and wild-type (wt) p53 derived peptides by major histocompatibility complex (MHC) class I molecules on a wide range of malignant cells. A major barrier to the design of broad-spectrum hdm2 and p53 specific immunotherapeutics for leukemia and cancer, however, has been the observation that low-level expression of hdm2 and wt p53 peptides by non-transformed tissues and cells results in self-tolerance of T-lymphocytes with high avidity for self-class I MHC / self-peptide complexes. Although the peripheral T-cell repertoire is mostly devoid of such high-avidi…
Prognostic Factors in APL
2018
The prognosis of acute promyelocytic leukemia (APL) has significantly improved since the introduction of anthracyclines, but especially after the advent of all-trans retinoic acid (ATRA) and arsenic trioxide (ATO). The identification of prognostic factors is a key process in clinical investigation, since their recognition allows the stratification of disease risks and promotes refined therapeutic adjustments. In fact, most treatments are now designed following risk-adapted strategies in order to optimize the therapeutic efficacy and minimizing side effects. The efficacy of treatment is one major determinant in prognosis. Therefore, the impact of a number of disease and patient characteristi…
Data-based modeling of vehicle crash using adaptive neural-fuzzy inference system
2014
Vehicle crashes are considered to be events that are extremely complex to be analyzed from the mathematical point of view. In order to establish a mathematical model of a vehicle crash, one needs to consider various areas of research. For this reason, to simplify the analysis and improve the modeling process, in this paper, a novel adaptive neurofuzzy inference system (ANFIS-based) approach to reconstruct kinematics of colliding vehicles is presented. A typical five-layered ANFIS structure is trained to reproduce kinematics (acceleration, velocity, and displacement) of a vehicle involved in an oblique barrier collision. Subsequently, the same ANFIS structure is applied to simulate different…
Type-2 Fuzzy Control of a Bioreactor
2009
Abstract—In this paper the control of a bioprocess using an adaptive type-2 fuzzy logic controller is proposed. The process is concerned with the aerobic alcoholic fermentation for the growth of Saccharomyces Cerevisiae a n d i s characterized by nonlinearity and parameter uncertainty. Three type-2 fuzzy controllers heve been developed and tested by simulation: a simple type-2 fuzzy logic controller with 49 rules; a type-2 fuzzyneuro- predictive controller (T2FNPC); a t y p e -2 selftuning fuzzy controller ( T2STFC). The T2FNPC combines the capability of the type-2 fuzzy logic to handle uncertainties, with the ability of predictive control to predict future plant performance making use of a…
A distributed real-time data prediction and adaptive sensing approach for wireless sensor networks
2018
International audience; Many approaches have been proposed in the literature to reduce energy consumption in Wireless Sensor Networks (WSNs). Influenced by the fact that radio communication and sensing are considered to be the most energy consuming activities in such networks. Most of these approaches focused on either reducing the number of collected data using adaptive sampling techniques or on reducing the number of data transmitted over the network using prediction models. In this article, we propose a novel prediction-based data reduction method. furthermore, we combine it with an adaptive sampling rate technique, allowing us to significantly decrease energy consumption and extend the …
1653 – The developemnt of adaptive and maladaptive patterns of internet use among european adolescents at risk for internet addictive behaviors: a gr…
2013
Introduction Full findings from the European Commission funded EU-NET-ADB study (Safer Internet Programme) will be presented. Objectives Empirical findings that elucidate the development of an internet addictive behaviour are still incomplete. This is also related to risk as well as protective factors of internet use. Here a process oriented approach to identify underlying conditions of an internet addictive behaviour was chosen. Aims The aim of the study is to enhance the knowledge and understanding of underlying processes which lead to situation were internet addictive behaviour can evolve. Methods In total 124 in-depth interviews were conducted with adolescents with an age of 14-17 year.…