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Phasor measurement signals are used as only input to a wide-area power system stabilizer to increase interarea mode damping of the Icelandic system. Modal analysis and time simulations of a detailed model show that frequency difference as PSS input gives a damping improvement that is robust to drastic changes in system topology. Field data from phasor measurement units indicate high signal quality
In this chapter, we compare the class composition of four types of anti-austerity demonstrations—Occupy/Indignados, trade union, May Day and other anti-austerity protests—with “new social movement” demonstrations. This allow us to, firstly, scrutinize whether contemporary anti-austerity protests attract more participants from the lower classes—in particular the working class—than from the upper st
The aim of this paper is to present the software development techniques used to build the EIS Patterns development framework, which is a testbed for a series of techniques that aim at giving more flexibility to EIS in general. Some of these techniques are customizations or extensions of practices created by the agile software development movement, while others represent new proposals. This paper a
The paper opens by generalizing the concept of 'informing science'. It then introduces some meta-scientific perspectives and a discussion of a metaphor that has considerable explanatory power. Two main schools of metascience are presented and contrasted. The difference between treating invariances in natural sciences and in social and cultural sciences is discussed. The double helix is introduced
Measuring information systems’ (IS) impact is a long-standing topic in the research community but it is far from complete. To date, there are calls from both practitioners and academia for more contributions on this topic, especially in the area of IS effectiveness in management accounting (MA). This research is inspired by former research results that indicate that it is unclear in practice wheth
The effect of airborne particulate matter on human health is today of considerable research interest. Essential parameters include elemental composition sampling with low pressure cascade impactors and analysis by particle induced x-ray emission spectroscopy (PIXE). It is shown that the aerosol generated by arc welding operations is several orders of magnitude denser than aerosols in ambient air.
Primary retinal cell cultures and immunocytochemistry are important experimental platforms in ophthalmic research. Translation of retinal cells from their native environment to the in vitro milieu leads to cellular stress, jeopardizing their in vivo phenotype features. Moreover, the specificity and stability of many retinal immunochemical markers are poorly evaluated in retinal cell cultures. Henc
From studies on prophylaxis against experimental streptococcal endocarditis using amoxycillin in a single dose, it has been deduced that serum concentrations above 0.12 mg/l should be maintained for at least 10 h after antibiotic administration. Since concentrations above this level are reported to occur following an oral dose of 3 g of amoxycillin, this doses for prophylaxis has become widely acc
BACKGROUND: In patients with sinus rhythm and normal atrioventricular conduction, pacing only the left ventricle with appropriate atrioventricular delays can result in superior left ventricular and right ventricular function compared with standard biventricular (BiV) pacing.OBJECTIVE: To evaluate a novel adaptive cardiac resynchronization therapy ((aCRT) algorithm for CRT pacing that provides auto
BACKGROUND: Older people with multi-morbidity are major users of healthcare and are often discharged from hospital with ongoing care needs. This care is frequently provided by informal caregivers and the time immediately after discharge is challenging for caregivers with new and/or additional tasks, resulting in anxiety and stress.AIM: This study aimed to describe mental health, with particular re
Mutations in the FMS-like tyrosine kinase 3 (FLT3) gene in 13q12.2 are among the most common driver events in acute leukemia, leading to increased cell proliferation and survival through activation of the PI3K/AKT, RAS/MAPK and STAT5 signaling pathways. In this study, we examine the pathogenetic impact of somatic hemizygous 13q12.2 microdeletions in B-cell precursor acute lymphoblastic leukemia (B
Large-scale science research facilities, such as those for investigation into the smallest components of physical matter, often consist of buildings with quite extraordinary features as regards shape and scale. These architectures are semiotically interesting in several ways: they have extraordinary outer forms that reflect the their inner activities; they require forms of mediation and planning t
