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This thesis applies the GARCH-MIDAS model to investigate the effects of macroeconomic variables, sentimental indicators, and financial variables on Swedish stock market volatility for the period January 2002 to December 2016. The GARCH-MIDAS framework allows the incorporation of data at different frequencies into the same model and decomposes volatility into two components. A short-term component
Dercum’s disease is a rare disease characterized by chronic pain (>3 months) in the adipose tissue, generalized overweight, and a number of associated symptoms. The pain is often disabling and resistant to traditional analgesics. Liposuction of Dercum’s disease was first described in 1987, and two prospective controlled studies have demonstrated that it can give pain relief and improve quality of
This paper compares credit pricing on the bond market and the credit default swap market with focus on countries of the Euro zone and in particular on Greece. For the period 2006 to 2008 we find that the two markets are closely related and that the CDS market is the main forum of price discovery. After 2008 the relationship loosened, however we find evidence that the bond market still is affected
This research examines whether the items of some of the most well-established five-factor inventories refer to competence. Results reveal that both experts and laymen can distinguish between items that refer to how competently a behavior is performed and items that do not (Study 1). Responses to items that refer to competence create a higher-order factor in the personality inventories (Study 2), a
Why is theorizing important? What does it do? This note reflects on the broad question of what we do when we theorize, taking its starting point from the Greek notion of theoria. The argument is that theorizing as an uncertain journey, i.e. as a form of travelling along a path towards the unknown or unfamiliar, has unjustly fallen into disrepute. The notion of ‘theory’ is today primarily associate
In our meta-study from 2022, “A Literature Review and Meta-Analysis of the Effects of Lockdowns on COVID-19 Mortality – II,” we find that the effect of lockdowns—also referred to as ‘Covid restrictions,’ ‘social distancing measures,’ etc.—on mortality was negligible. The first version of our meta-study received criticism from Banholzer, et al. (2022). The authors raised “concerns regarding the sub
Predictor screening rules, which discard predictors before fitting a model, have had considerable impact on the speed with which sparse regression problems, such as the lasso, can be solved. In this paper we present a new screening rule for solving the lasso path: the Hessian Screening Rule. The rule uses second-order information from the model to provide both effective screening, particularly in
The nanostructure of a series of choline chloride/urea/water deep eutectic solvent mixtures was characterized across a wide hydration range by neutron total scattering and empirical potential structure refinement (EPSR). As the structure is significantly altered, even at low hydration levels, reporting the DES water content is important. However, the DES nanostructure is retained to a remarkably h
This article compares two Islamic organisations, a non-governmental and a national one, in their methods of collecting and distributing zakat, and analyses how they addressed the COVID-19 crisis with these funds in the period 2020–2021. The study examines Islamic Relief as a Muslim non-governmental organisation involved in humanitarian response, and the National Board of the Zakat Republic of Indo
A superporous agarose matrix was compared with a corresponding homogenous matrix in the isolation of recombinant factor VIII SQ (r-VIII SQ) by immunoaffinity chromatography. As a reference, the commercially available Sepharose FastFlow, used for a similar purification in the industry, was also evaluated. Breakthrough curves are described for flows between 50 and 400 cm/h with pre-purified r-VIII S
High-intensity neutron beams, such as those available at the European Spallation Source (ESS), provide new opportunities for fundamental discoveries. Here, we discuss a novel Ramsey neutron-beam experiment to search for ultralight axion dark matter through its coupling to neutron spins, which would cause the neutron spins to rotate about the velocity of the neutrons relative to the dark matter hal
Ph.D. Course at the Social Science Faculty, fall 2019 Political Psychology Hanna Bäck and Magnus Lindén Course description This Ph.D.-course deals with theoretical and empirical approaches to the study of Political Psychology. Political psychology focuses on applying what is known about human psychology to the study of poli- tics. This course starts out with an overview of various theoretical appr
https://www.sam.lu.se/en/internal/sites/sam.lu.se.en.internal/files/political_psychology_2019.pdf - 2026-07-07
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