Sökresultat

We propose a model with two Higgs doublets and several SU(2) scalar singlets with a global non-Abelian flavor symmetry Q6× Z2. This discrete group accounts for the observed pattern of fermion masses and mixing angles after spontaneous symmetry breaking. In this scenario only the third generation of fermions get their masses as in the Standard Model (SM). The masses of the remaining fermions are ge

The formation of globular clusters remains an open debate. Dwarf starburst galaxies are efficient at forming young massiveclusters with similar masses as globular clusters and may hold the key to understanding their formation.Aims.We study star cluster formation in a tidal debris - including the vicinity of three tidal dwarf galaxies - in a massive gas dominatedcollisional ring around NGC 5291. Th

This thesis addresses how graphene can be a valuable asset for surface science studies. Using a combination of X- ray photoelectron spectroscopy, scanning tunneling microscopy, and low-energy electron diffraction, we take advantage of graphene’s sensitivity to changes in its chemical environment to obtain an atomic scale understanding of different reactions occurring above and below the film.As a

The COVID-19 crisis is a global event that has created and amplified social inequalities, including an already existing and steadily increasing problem of employment and income insecurity and erosion of workplace rights, affecting workers globally. The aim of this exploratory study was to review employment-related determinants of health and health protection during the pandemic, or more specifical

One of the most prominent and widely adopted COVID-19 countermeasures globally was the recommendation to work from home for all non-essential workers. Working from home (WFH) already entails many challenges, including difficulties in maintaining a healthy work-life balance. Moreover, the COVID-19 enforced remote working differed from planned remote work, as it was unplanned and involuntary, not ba

We analyze the oxygen abundances of a stellar sample representative of the two major Galactic populations: the thin and thick disks. The aim is to investigate the differences between members of the Galactic disks and contribute to the understanding of the origin of oxygen chemical enrichment in the Galaxy. The analysis is based on the [O i] = 6300.30 Å oxygen line in high-resolution spectra (R ∼ 5

The COVID-19 accelerated shift towards hybrid workspaces places major pressure onworkplace communities and culture. This study explores the emergence of a collaborative academic workspace, which is still in the real estate development phase. The aim is to establish preconditions for community building, and the relationship between the community and the physical space. The study employs a qualitati

Aim: Macroecological analyses provide valuable insights into factors that influence how parasites are distributed across space and among hosts. Amid large uncertainties that arise when generalizing from local and regional findings, hierarchical approaches applied to global datasets are required to determine whether drivers of parasite infection patterns vary across scales. We assessed global patte

The SDSS-IV Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey has obtained high-resolution spectra for thousands of red giant stars distributed among the massive satellite galaxies of the Milky Way (MW): the Large and Small Magellanic Clouds (LMC/SMC), the Sagittarius Dwarf Galaxy (Sgr), Fornax (Fnx), and the now fully disrupted Gaia Sausage/Enceladus (GSE) system. We present

Sharing is considered as one of the key elements in circular economy, as well as away to deliver social impact. According to the New Bauhaus initiative by the EuropeanCommission, new neighbourhoods should be environmentally sustainable, provide anaesthetic experience, and deliver social inclusion. This study explores the emergence of sharing business models in the real estate industry. The aim is

Refuse and reduce are amongst the most influential actions within Circular Economy and refer to the act of using less, reducing consumption. Within the spatial context, sharing is one way of reducing the need for physical space. Recently, other ways have emerged, such as, virtual or hybrid solutions enabling users to be part of a community and access content which would otherwise be delivered with

Repurposing former industrial sites to creative uses (so-called 'creative reuse') contributes to both cultural heritage and environmental sustainability, as it maintains the existing building stock. Creative reuse may also have positive impacts on the site surroundings. This study explores the prerequisites, functioning, and consequences of creative reuse in a small post-industrial town in Sweden.

Antibiotikaresistens har länge utgjort en växande fara som innebär att enkla infektioner inte längre går att behandla. För att genomföra de nödvändiga förändringarna måste de mer välbeställda länderna bära en större del av bördan och kostnaderna än fattigare länder. Ett solidariskt förhållningssätt understryker vårt ömsesidiga beroende av varandra. Det ökar också möjligheten att antibiotika kommer

This dissertation investigates the role of dress in the ancient Greek author and intellectual Plutarch. The works of Plutarch comprise one of the most prolific authorships preserved to us from classical antiquity. His writings span a plethora of disciplines in ancient scholarship and have preserved a multitude of references to the lives and customs of both his contemporaries and his predecessors.

This thesis consists of four independent empirical papers on monetary policy and economic inequality. The first paper explores the Romer and Romer (R&R) (2004) framework to estimate monetary policy shocks. R&R propose a simple method to estimate shocks using forecast and real-time data, but such data is not always available. We study the consequences of using revised outcome data when esti

Healthy subjects frequently report minor bleedings that are frequently 'background noise' of normality rather than a true disorder. Nevertheless, unexpected or unusual bleeding may be alarming. Thus, the distinction between normal and pathologic bleeding is critical. Understanding the underlying pathologic mechanism in patients with an excessive bleeding is essential for their counseling and treat

Social cognition entails all cognitive processes involved in social interactions. To study the evolution of social cognition, it is crucial to investigate several distantly related lineages. Studies in comparative cognition have traditionally been biased towards primates and a few social mammalian species, limiting evolutionary interpretations to few and closely related lineages.To obtain a better

The development of mesencephalic dopamine neurons and their survival later in life requires the continuous presence of the transcription factor Nurr1 (NR4A2). Nurr1 belongs to the nuclear receptors superfamily. However, it is an orphan member that does not require a ligand to regulate the transcription of its target genes. Therefore, controlling the expression of Nurr1 is an important manner to co

INTRODUCTION: The main objective was to present characteristics and outcome of patients without sustained field return of spontaneous circulation (ROSC) transported to hospital with ongoing cardiopulmonary resuscitation (CPR). Our secondary objectives were to investigate hospital-based interventions and the performance of the universal Termination of Resuscitation-rule (uTOR).METHODS: In this retr