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In this paper, we present a method of constructing new families of LDPC block code ensembles formed by terminating irregular protograph-based LDPC convolutional codes. Using the accumulate-repeat-by-4-jagged-accumulate (AR4JA) protograph as an example, a density evolution analysis for the binary erasure channel shows that this flexible design technique gives rise to a large selection of LDPC block
Studien syftade dels till att undersöka om personlighetsvariabler som visat sig predicera beteende i sociala dilemman även hade ett samband med Organisatoriskt engagemang. Vidare avsåg studien undersöka vad som ligger bakom viljan att arbeta ideellt i form av motivation och personlighet. Urvalet i studien bestod av 203 ideellt aktiva inom tolv olika studentorganisationer. Data inhämtades genom en The aim of the present study was first to examine whether personality variables, which in previous research have been found to predict behaviour in social dilemmas, also were related to Organizational commintment. Second, the study aimed to explore what lies behind a willingness to volunteer in a non-profit organization in terms of motivation and personality. The sample in the study consisted of 2
The phenomenon deepfake was created in 2017 and has since developed and received a lot of attention, especially in pornography thus the absolute majority of all deepfakes on the internet are of pornographic content, with 90% of those who are exposed to deepfakes are woman. The purpose of this essay is to investigate young women’s awareness of deepfakes as well as how the phenomenon used in porn co
Using data on 119 low- and lower-middle-income countries from 2002 to 2020, we fit fixed-effects (FE) models to evaluate the impacts of three types of official development assistance (ODA) on access to three types of sexual and reproductive health (SRH) services: access to skilled birth attendance, access to modern contraceptives and coverage of antiretroviral therapies against HIV/AIDS. The resul
Vitrified bonded aluminum oxide grinding wheels are widespread in use for many applications in grinding, such as internal plunge grinding. However, there are challenges when it comes to the measurement, analysis and (geometric) modeling of their topography, which is crucial to understand and model the influence of the topography on the process behavior. Methodological advances allow for the detail
Purpose: Children and youth with disabilities are at increased risk of abuse a major societal and public health problem in Cameroon. The aim was to explore the causes of abuse among children and youth with disabilities in homes and institutions in the Northwest Region of Cameroon. Methods: A qualitative study was conducted, including 50 in-depth interviews with children and youth with disabilities
NTRU is a public-key cryptosystem, where the underlying mathematical problem is currently safe against large-scale quantum computer attacks. The system is not as well investigated, as for example RSA, and the company behind NTRU has created the NTRU Challenges, to remedy this. These challenges consist of 27 different public keys of increasing size, where the task in each challenge is to calculate
Hexavalent chromium (Cr(VI)) can induce oxidative stress, genomic instability, and epigenetic modifications. In occupational settings, Cr(VI)-exposed workers may also be exposed to other toxicants, such as elements besides Cr, and per- and polyfluoroalkyl substances (PFAS). However, research on the extent of these co-exposures and their combined effects remains limited. The objective of this study
Objective: Psychosocial stress increases the risk for subsequent episodes of alcohol use disorder (AUD) and drug use disorder (DUD), with most studies assessing stress exposure by questionnaire or interview methods. We developed an environmental risk score (ERS) using multiple classes of stressful life events (SLEs) obtained from national Swedish registries. Method: We assessed, in the entire adul
Bakgrund: Barn-och ungdomar med psykisk ohälsa har ofta svårigheter att reglera sensoriska intryck i sin vardag, vilket påverkar målgruppens möjlighet att vara engagerad i aktiviteter i det dagliga livet. För att möta dessa svårigheter använder arbetsterapeuter inom psykiatrin i en internationell kontext sk. sensorisk modulering som intervention. Det är dock oklart hur det ser ut i svensk kontext,Background: Children and adolescent with mental illness often have difficulties regulating sensory inputs in their daily life, which affects their ability to engage in daily activities. To address these difficulties, occupational therapists in an international context, use so called sensory modulation interventions in psychiatry. However, it is unclear what this looks like in the Swedish context,
CEO compensation is a contested topic in business research, shaped by several determinants. One such factor is CEO visibility, which prior research has linked to CEO compensation in traditional media settings. However, it remains unclear whether this visibility-compensation relationship extends to professional social media platforms (PSMPs). This study examines whether CEO PSMP visibility is assoc
This thesis looks into how ideological polarisation of party systems (X) influences affective polarisation (Y) on the individual level. Taking off from social identity theory, I assume that larger ideological divergence between parties fosters more emotionally charged evaluations of political opponents because of identity-based in-group and out-group dynamics as well as due to being by virtue diff
Capsule Nest survival rates could not be explained by distance to habitat edges or other features used by predators. Aims To investigate if predation on Redshank nests was affected by habitat characteristics at a local scale. Methods We examined survival rates of Redshank nests on coastal meadows on the Baltic island of Gotland, Sweden, over two breeding seasons. We analysed nest survival rates
BACKGROUND:: In soft tissue sarcoma, better distinction of high-risk and low-risk patients is needed to individualize treatment and improve survival. Prognostic systems used in clinical practice identify high-risk patients based on various factors, including age, tumor size and depth, histological type, necrosis, and grade. METHODS:: Whole-tumor sections from 239 soft tissue sarcomas of the extrem
The use of a rigid disc as a barrier between the wound bed and the wound filler during negative pressure wound therapy (NPWT) has been suggested to prevent damage to exposed organs. However, it is important to determine that the effects of NPWT, such as wound contraction and fluid removal, are maintained during treatment despite the use of a barrier. This study was performed to examine the effect
Large increases in regional cerebral blood flow (rCBF) have been measured in patients with Parkinson's disease (PD) following the administration of L-DOPA, but the underlying mechanisms have remained unknown. In this study, we have used rats with unilateral 6-hydroxydopamine (6-OHDA) lesions as a model of PD in order to compare the patterns of rCBF and regional cerebral glucose utilisation (rCGU)
Individual aspects of social capital have been shown to have significant associations with health outcomes. However, research has seldom tested different elements of social capital simultaneously, whilst also adjusting for other well-known health determinants over time. This longitudinal individual-level study investigates how temporal changes in social capital, together with changes in material c
Software Engineering has been a fundamental part of many computing undergraduate courses for a number of years. Although many of the tools and techniques used to undertake software engineering have changed, the assessment has typically stayed the same. Students are commonly tasked with producing a number of software artefacts, for example designs using the Unified Modelling Language (UML). We rece
We studied the behavior of an iterative receiver using protograph based LDPC codes (PG-LDPCC) in an UWB short range communication system. An EXIT-Chart-Analysis is applied by means of density evolution of protographs. We show that AWGN-optimized protograph ensembles perform also well on frequency-flat UWB channels, outperform rate-compatible punctured convolutional codes (RCPC), but degrade with i
