Email, stress och coping

Den föreliggande studien grundades på tidigare forskning som funnit samband mellan email-användande och stressrelaterade sjukdomar, såsom utbrändhet och emotionell utmattning, samt en ökad daglig stress. Syftet med studien var att undersöka om det finns ett samband mellan email overload, copingstrategier och upplevd stress. Vidare frågeställningar som studien baserades på var ifall det finns ett samband mellan email volym, email work importance och email overload samt grad av upplevd stress. Studien genomfördes i form av en webb-baserad enkät som 43 anställda inom tjänstesektorn på en svensk koncern besvarade. Studien visade ett positivt, signifikant samband mellan upplevd stress och email overload, samt ett negativt, signifikant samband mellan aktiv coping och stress. Eftersom inga andra signifikanta korrelationer framkom vad gäller coping, genomförde vi inte vidare analyser för att undersöka coping i relation till övriga variabler. I framtida studier föreslås att andra faktorer än coping, kopplat till personlighet undersöks i förhållande till email och stress. Att undersöka fler konsekvenser, negativa såväl som positiva, av email-användande kan också vara av vikt, då email är ett verktyg som frekvent används inom arbetslivet idag.The present study was based on previous research that has found connections between email usage and stress-related diseases, such as burnout and emotional exhaustion, as well as an increased daily stress. The purpose of the study was to investigate whether there is a connection between email overload, coping strategies and percieved stress. Further issues on which the study was based was if there is a connection between high email volume, high email work importance and email overload, as well as degree of perceived stress. The study was conducted in the form of a web-based survey which 43 employees in the service sector of a Swedish corporate group answered. The study showed a positive, significant relationship between perceived stress and email overload, as well as a negative, significant relationship between active coping and stress. Since no other significant correlations were found related to coping, we did not go on with any further analysis to investigate coping in relation to other variables. Suggestions for future studies are that other factors than coping, linked to personality, are investigated in relation to email and stress. To examine more consequences of email usage, negative as well as positive ones, can also be important, since email is a tool frequently used in working life today

Underfilling decreases left ventricular function in pulmonary arterial hypertension

To evaluate the association between impaired left ventricular (LV) longitudinal function and LV underfilling in patients with pulmonary arterial hypertension (PAH). Thirty-nine patients with PAH and 18 age and sex-matched healthy controls were included. LV volume and left atrial volume (LAV) were delineated in short-axis cardiac magnetic resonance (CMR) cine images. LV longitudinal function was assessed from atrio-ventricular plane displacement (AVPD) and global longitudinal strain (GLS) was assessed using feature tracking in three long-axis views. LV filling was assessed by LAV and by pulmonary artery wedge pressure (PAWP) using right heart catheterisation. Patients had a smaller LAV, LV volume and stroke volume as well as a lower LV-AVPD and LV-GLS than controls. PAWP was 6 [IQR 5––9] mmHg in patients. LV ejection fraction did not differ between groups. LV stroke volume correlated with LV-AVPD (r = 0.445, p =.001), LV-GLS (r = − 0.549, p < 0.0001) and LAVmax (r =.585, p < 0.0001). Furthermore, LV-AVPD (r =.598) and LV-GLS (r = − 0.675) correlated with LAVmax (p < 0.0001 for both). Neither LV-AVPD, LV-GLS, LAVmax nor stroke volume correlated with PAWP. Impaired LV longitudinal function was associated with low stroke volume, low PAWP and a small LAV in PAH. Small stroke volumes and LAV, together with normal LA pressure, implies that the mechanism causing reduced LV longitudinal function is underfilling rather than an intrinsic LV dysfunction in PAH

An information fusion demonstrator for tactical intelligence processing in network-based defense

The Swedish Defence Research Agency (FOI) has developed a concept demonstrator called the Information Fusion Demonstrator 2003 (IFD03) for demonstrating information fusion methodology suitable for a future Network Based Defense (NBD) C4ISR system. The focus of the demonstrator is on real-time tactical intelligence processing at the division level in a ground warfare scenario. The demonstrator integrates novel force aggregation, particle filtering, and sensor allocation methods to create, dynamically update, and maintain components of a tactical situation picture. This is achieved by fusing physically modelled and numerically simulated sensor reports from several different sensor types with realistic a priori information sampled from both a high-resolution terrain model and an enemy organizational and behavioral model. This represents a key step toward the goal of creating in real time a dynamic, high fidelity representation of a moving battalion-sized organization, based on sensor data as well as a priori intelligence and terrain information, employing fusion, tracking, aggregation, and resource allocation methods all built on well-founded theories of uncertainty. The motives behind this project, the fusion methods developed for the system, as well as its scenario model and simulator architecture are described. The main services of the demonstrator are discussed and early experience from using the system is shared

Matematikkundervisning

Denna boken är skriven av en grupp erfarna norska och svenska lärarutbildare i matematik. Boken bygger på utprövad erfarenhet - såväl egen som andras - och på aktuell, relevant forskning i matematikdidaktik. Texten väver samman matematik och matematikdidaktik, det vill säga ämnet som det undervisas i och frågor om hur ämnet kan läras och undervisas. Boken innehåller det som är absolut viktigast att få med sig i den grundläggande lärarutbildningen i matmatik