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Development of a probabilistic model for Covid-19 dynamics with consideration of non-severe and severe infections

Covid-19 has triggered a massive global challenge with 1,576,069 overall confirmed cases, 1,545,429 recovered cases, and 30,640 deaths across Pakistan. Epidemiological models have always played an important role in understanding the dynamics of such infectious diseases. The severity of Covid-19 infection depends on several factors such as immune system and virus variants. Although detailed epidemi

The Politics of Radio and Television in Western Democracies

Med utgångspunkt i unikt arkivmaterial undersöker denna avhandling skillnader i hur västliga demokratier styrt radio och television. Genom en jämförande studie av fyra länder följer den de intressekonflikter som präglat etermediepolitiken — från de tidigaste radioregleringarna till kabel- och satellit-tv:s genomslag under slutet av nittonhundratalet.Snarare än att tolka politiska konflikter kring Using original archival evidence, this doctoral dissertation describes and explains differences in how Western democracies have governed radio and television, tracing interest group struggles over broadcasting in four countries from early radio policy to the rise of cable and satellite television in the late twentieth century.Rather than framing political conflicts over radio and television as a b

On equal terms? Marketing private label products next to leading national brand products – exploring the phenomena of shielding

Private labels (PL) have gone from being a marginal and rather odd phenomenon in the gro-cery sector 20 years ago, to having a prominent role in the grocery retailing landscape, ac-counting for approximately 25-30% of what is sold in Swedish food stores today. Given the enormous turnover of the grocery trade, amounting to 326 billion SEK in 2023 according to Statistics Sweden (SCB), this is a rema

What determines the 'culture of silence'? : Disclosing and reporting sexual harassment among university employees and students at a large Swedish public university

BACKGROUND: The MeToo-movement challenges the 'culture of silence' regarding sexual harassment (SH). There are few studies regarding this phenomenon in academic settings. The aim of this study was to investigate the relationship between having reported or disclosed SH, on the one hand, and background factors and general health and wellbeing of exposed individuals, types of SH and perpetrator chara

Internal marketing in changing times - Supporting personnel meeting customers in physical retail stores

Abstract NRWC 2024 Internal marketing in changing times - Supporting personnel meeting customers in physical retail storesUlf Johansson, Lund School of Economics and management, Center for retail studies at Lund universityKristina Bäckström, Campus Helsingborg, Lund university, Center for retail studies at Lund universityA lot has been written about the change of retail in later years (Berman, 201

Handelns egna varumärken : Utveckling, användning och påverkan på konkurrensen

Den här rapporten syftar till att undersöka och analysera frågor kring handelns egna märkesvaror (EMV) och deras påverkan på konkurrens, priser, produktutveckling och maktbalans i dagligvarukedjan. Genom att betrakta EMV från ett konkurrensperspektiv, undersöker rapporten motiv och strategier bakom användningen av EMV, samt dess effekter på marginaler, prissättning och sortimentsbredd.Rapporten ko

Minimax Linear Regulator Problems for Positive Systems : with applications to multi-agent synchronization

Exceptional are the instances where explicit solutions to optimal control problems are obtainable. Of particular interest are the explicit solutions derived for minimax problems, as they provide a framework for addressing challenges involving adversarial conditions and uncertainties. This thesis presents explicit solutions to a novel class of minimax optimal control problems for positive linear sy

A Minimax Optimal Controller for Positive Systems

We present an explicit solution to the discrete-time Bellman equation for minimax optimal control of positive systems under unconstrained disturbances. The primary contribution of our result relies on deducing a bound for the disturbance penalty, which characterizes the existence of a finite solution to the problem class. Moreover, this constraint on the disturbance penalty reveals that, in scenar

Childhood neighborhoods and health in later Life : Hospital admissions in Sweden 1939-2015

We study the association between childhood neighborhood socioeconomic status (SES) (ages 1-15) and hospitalization with preventable-type disease in adulthood, using geocoded longitudinal microdata for a Swedish city (1939-1967) linked to national registers (1973-2015). Observing the full residential histories at the address level for the entire population, we construct dynamic and cumulative indiv

Combining Keystroke Logging with Eye-Tracking : Introduction, overview and framework

This subchapter describes the successful development of a new methodology for studying on-line writing. The text-logging tool ScriptLog has been combined with the eye-tracking technology iView X HED HT, in order to enhance the study of the interplay between writing, monitoring and revision. Data on the distribution of visual attention during writing help determining to what extent pauses are used

Theoretical and instructional aspects of learning with visualizations

Multimedia environments consist of verbal and visual representations that, if appropriately processed, allow for the construction of an integrated mental model of the content. Whereas much is known on how students learn from verbal representations, there are fewer insights regarding the processing of visual information, alone or in conjunction with text. This chapter uses a semiotics approach to p

The Influence of Narrative Specificity and Voice Quality When Listening to Audio Descriptions : A Comparison of the Sighted and the Blind

Audio description (AD) serves as a vital means to make visual media accessible to non-sighted and visually impaired audiences. This study systematically investigates the impact of narrative specificity and voice quality on imageability and comprehension in both sighted and non-sighted populations. Twenty non-sighted participants, including congenitally blind individuals and those who lost their si