Search results for "I.5"
showing 10 items of 399 documents
The Effects of Banning Smartphone Use During Lectures in High Schools : An explanatory case study
2021
Master's thesis in Information systems (IS501) Research context–During the last decade, smartphonehas become an integral part of our lives. It is undeniable that the smartphone has impacted almost every aspect of our lives, and education is no exception. Banning smartphone use is one of the measures that has been implemented in high school to manage excessive smartphone use among students. Developing an appropriate policy to manage smartphone use during lectures can be a difficult task, because it can have a positive impact on their attention and academic performance, while also having a negative impact on their behavior and mentality. Purpose-This study addresses the issue regarding smartp…
Inhibition of Efavirenz Metabolism by Sertraline and Nortriptyline and Their Effect on Efavirenz Plasma Concentrations.
2015
ABSTRACT Between 22 and 45% of HIV-positive subjects are likely to report symptoms of depression. Considering this background, a potential pharmacokinetic interaction between the nonnucleoside reverse transcriptase inhibitor efavirenz (EFV) and two antidepressants, sertraline (SRT) and nortriptyline (NT), was studied. Rats were administered EFV alone or together with the antidepressants, and changes in the plasma levels and pharmacokinetic parameters of EFV were analyzed. Additional in vitro experiments with rat and human hepatic microsomes were carried out to evaluate the inhibitory effect of SRT and NT on EFV metabolism by determining the formation rate of the major EFV metabolite (8-OH-E…
Harmonization of Neuroticism and Extraversion phenotypes across inventories and cohorts in the Genetics of Personality Consortium:an application of I…
2014
Mega- or meta-analytic studies (e.g. genome-wide association studies) are increasingly used in behavior genetics. An issue in such studies is that phenotypes are often measured by different instruments across study cohorts, requiring harmonization of measures so that more powerful fixed effect meta-analyses can be employed. Within the Genetics of Personality Consortium, we demonstrate for two clinically relevant personality traits, Neuroticism and Extraversion, how Item-Response Theory (IRT) can be applied to map item data from different inventories to the same underlying constructs. Personality item data were analyzed in >160,000 individuals from 23 cohorts across Europe, USA and Australia…
Analysis of Chlorpyrifos in Water, Fruit Juice, and Honeybee Extract by Chemiluminescent Elisa
2008
Abstract The suitability of competitive enzyme-linked immunosorbent assays (ELISAs) with chemiluminescent detection-based immobilized antigen (indirect assay) for rapid and accurate determination of chlorpyrifos in various food matrices was tested. The limit of detection (LOD) values were 1–1.75 ng mL−1, the standard curve midpoint (IC50) was 3.5 ng mL−1, and the assay duration was 1.5 h. Assay application to the analysis of honeybee extract resulted in chlorpyrifos recoveries varying between 62 and 83% in 5–15 ng mL−1 herbicide concentration range.
Ungdom og e-demokrati : hvilke ønsker og forventninger har ungdom til e-demokrati?
2007
Masteroppgave i informasjonssystemer 2007 - Høgskolen i Agder, Kristiansand E-demokrati er et satsningsområde i offentlig sektor. Det har i Norge vært synkende deltagelse i valg både til Storting og kommunevalg ved de siste valgene. Ungdom i aldersgruppen 18 til 21 år har lavere oppslutning rundt valgene enn eldre aldersgrupper. Flere mener at e-demokrati kan bidra til å øke oppslutning rundt demokratiet og valgene. I denne sammenheng er ungdom en viktig målgruppe. Vi har sett nærmere på e-demokrati rettet mot ungdom. Målet for denne masteroppgaven har vært å forstå hvilke ønsker og forventninger ungdom har til informasjonssystemer innen for edemokrati. For å besvare dette spørsmålet har vi…
Coscinolactams A and B: new nitrogen-containing sesterterpenoids from the marine sponge Coscinoderma mathewsi exerting anti-inflammatory properties
2009
Abstract Investigation of the marine sponge Coscinoderma mathewsi led to the isolation of two novel nitrogen-containing cheilanthane sesterterpenoids, coscinolactams A and B, together with known suvanine. The structures were elucidated by extensive spectroscopic measurements including NOE experiments to deduce the stereochemistry. The natural compounds, as well as a semisynthetic derivative, showed moderate anti-inflammatory activity measured as their capability to inhibit PGE2 and NO production. The suvanine aldehyde derivative 4 inhibited inducible nitric oxide protein expression with an IC50 value of 7.3 μM.
How alternative food networks work in a metropolitan area? An analysis of Solidarity Purchase Groups in Northern Italy
2019
AbstractOur paper focuses on Solidarity Purchase Group (SPG) participants located in a highly urbanized area, with the aim to investigate the main motivations underlining their participation in a SPG and provide a characterization of them. To this end, we carried out a survey of 795 participants involved in 125 SPGs in the metropolitan area of Milan (Italy). Taking advantage of a questionnaire with 39 questions, we run a factor analysis and a two-step cluster analysis to identify different profiles of SPG participants. Our results show that the system of values animating metropolitan SPG practitioners does not fully conform to that traditionally attributed to an alternative food network (AF…
Higher education in the fight against poverty from the capabilities approach: The case of Spain
2017
Abstract This article describes relative poverty in Spain in relation to the other States in the European Union, following the European indicator AROPE. The official data provided by the National Statistical Institute of Spain and by Eurostat, refer to the year 2014 (the last one for which definitive data are available is 2015). Given the relative poverty of Spanish population, the failure of conventional economic theories, which conceive social development as GDP growth, is clear, and it is argued in favour of the human capabilities approach as a more adequate option for development, from a theoretical-practical point of view, for the reduction and/or eradication of poverty, as well as the…
Does one size fit all? The impact of cognitive skills on economic growth
2016
Les Documents de Travail de l'IREDU, n°2016-1; This paper tests for heterogeneous effects of cognitive skills on economic growth across countries. Using a new extended dataset on cognitive skills and controlling for potential endogeneity, we find that the magnitude of the effect is about 60 per cent higher for low-income countries compared to high-income countries, and it more than doubles when low TFP countries are compared to high TFP countries. There are also marked differences across geographic regions. Using data on the share of the population with advanced and minimum skill levels, our results also indicate that high-income countries should focus on increasing the number of high skill…
Proximal and distal antecedents of problematic information technology use in organizations
2021
PurposeExcessive use of work-related information technology (IT) devices can lead to major performance and well-being concerns for organizations. Extant research has provided evidence of the incidence of such problematic IT use in organizations. We extend the understanding of problematic IT use by examining its individual (proximal) and organizational (distal) antecedents.Design/methodology/approachDrawing from the self-worth theory and the concept of fear of being left behind, we address proximal antecedents that lead to problematic IT use. Drawing from the concept of autonomy paradox, we address distal antecedents of problematic IT use through a positive association with the two proximal …