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Variable selection properties of procedures utilizing penalized-likelihood estimates is a central topic in the study of high-dimensional linear regression problems. Existing literature emphasizes the quality of ranking of the variables by such procedures as reflected in the receiver operating characteristic curve or in prediction performance. Specifically, recent works have harnessed modern theory

In this paper, we study rational Collet–Eckmann maps for which the Julia set is not the whole sphere and for which the critical points are recurrent at a slow rate. In families where the orders of the critical points are fixed, we prove that such maps are Lebesgue density points of hyperbolic maps. In particular, if all critical points are simple, these maps are Lebesgue density points of hyperbol

Catalonia, like the rest of Spain, is a homeownership society. The most recent official statistics (2011) state that 74 per cent of the population are homeowners, 20 per cent are tenants and 2 per cent live in social housing. Related to tenure status, the state of housing in Catalonia – the second wealthiest autonomous community in Spain – has undergone noteworthy shifts in the first decades of th

Background and purpose — Radiostereometry (RSA) is the current gold standard for evaluating early implant migration. CT-based migration analysis is a promising method, with fewer handling requirements compared with RSA and no need for implanted bone-markers. We aimed to evaluate agreement between a new artificial intelligence (AI)-based CT-RSA and model-based RSA (MBRSA) in measuring migration of

What constraints and conditions are conducive to the innovation of more advanced watercraft technology? This paper explores this question by modeling ancient voyages in the Channel Island region of southern California. The Chumash and Tongva cultures of this region invented an advanced form of boat, the sewn plank canoe, around 500 CE. This new technology led to a rapid increase in maritime travel

This thesis provides an account of the pledge-making and eventual pledge fulfilment of the Swedish government of 2014, which consisted of the Social Democratic Party and the Green Party. It is grounded in the theoretical approaches of the mandate model of representation and promissory representation. It explores whether the pledges these two parties made within issue areas that their voters identi

This study investigates the level of engagement among female politicians in Örebro Municipal Council, with a particular focus on their commitment to climate policy compared to their male counterparts. The purpose of the study is to explore whether women generally exhibit greater dedication to climate issues. To address the research questions, a combination of interviews and quantitative content an

Denna studie undersöker människors prioritering mellan värdena frihet och säkerhet kvantitativt utifrån SOM-institutets enkätundersökning 2022. Säkerhet är enligt postmaterialistisk teori ett materialistiskt värde som prioriteras högre i tider av osäkerhet. Hypotesen är formulerad utifrån teorin och lyder: människor som anser att utvecklingen i Sverige går åt fel håll borde prioritera säkerhet öve

This thesis examines gender equality policies of the European Union in external affairs. The aim is to discover how the meaning and “problem” of gender (in)equality is constructed, represented, and problematized in the gender policies for external action. The study also ascertains what logics underpin the problem representations, whose voices are silenced, and what subject positions are created. E

The aim of this exploratory research has been to examine the lean startup methodology process and foster a better way of applying this method in the global south. This is done by assessing the method’s application process of a solar startup targeting the Kenyan market - the strengths and weaknesses the company encountered during the process, measures taken by the company to overcome those weakness

The aim of my study is to find out how Peru's recently signed free trade agreements have affected the volume of imports of fishmeal by the partner countries.

This is a project that have been conduct at IKEA of Sweden in Älmhult. Due to the limitation of time for this project, the study has only been conduct for one several Home Furnisher Business (HFB) within IKEA. The purpose of the project was to provide suggestions on how to improve the Sales and Supply process in order to enhance balancing of demand and supply. Within the concerned HFB there are