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The Chiffchaff Phylloscopus collybita is represented in Sweden by two different subspecies; the northern well-established abietinus and the southern recently established collybita which has expanded its range northward during the past two decades. At present, an area approximately 500 km wide separates the two subspecies. In order to document differences between the northern and southern populatio
The fourth generation broadband (4GBB) concept aims for ubiquitous and high-speed data communication over the existing twisted copper pairs between the last distribution point and the customer premise equipment. Although it saves deployment cost for the last-mile communication, using the existing copper infrastructure makes the system vulnerable to crosstalk due to electro-magnetic coupling from t
The radiation balance of urbanised catchments differs from their rural counterparts, with snowpacks experiencing either enhanced or decreased irradiance depending on snowpack location and condition. As snowmelt is largely driven by radiation inputs, changes to localised irradiance (and melt rates) have implications for urban runoff generation. Storm- and wastewater drainage systems in cold regions
The extent of behavioral recovery following neural transplantation in part depends on the amount of surviving graft tissue. The main objective of this thesis was to study parameters affecting the survival of embryonic striatal and mesencephalic neurons in experimental models of Huntington's and Parkinson's disease. Firstly, we studied the survival and maturation of embryonic striatal neurons that
This thesis investigates the applicability and performance of reinforcement learn- ing (RL) for inventory management of spare parts in a single-echelon setting. Traditional inventory control methods, such as (R,Q)-policies, typically decou- ple forecasting and ordering decisions, which may lead to suboptimal system- wide performance, particularly in environments characterized by intermittent and s
Problem Area: Hotel operations strive to deliver a seamless service experience while operating in a dynamic environment where demand fluctuates and is often actively driven through revenue management. This may push operations towards or beyond their operational capacity, creating tensions between economic objectives and operational conditions. Despite this, there is limited understanding of how th
In this work the inhomogeneous (zero-phonon line) and homogeneous linewidths and the permanent electric dipole moment change (averaged value of all dipole orientations) for the Ce 4f-5d transition in Y2SiO5 were measured in order to investigate the possibility for using Ce as a sensor to detect the hyperfine state of a spatially close-lying Pr or Eu ion. The experiments were carried out on Ce dope
In structural engineering the system effect is known as the possibility of transversal collaboration among parallel load-bearing elements due to mechanical load sharing. The statistical system effect, related to the variation of strength within structural timber elements, is investigated in this paper. The system investigated is a roof truss of W-type. The strength variation within and between tim
The objective of this study was to examine to what extent ergonomics simulations of manual assembly tasks correctly predict the real outcomes in the plants and if recommended measures originating from ergonomics simulations are taken into consideration. 155 ergonomics simulation cases were used in the study and all cases were performed by nine simulation engineers at Volvo Car Corporation in Gothe
Primordial black holes formed through the collapse of cosmological density fluctuations have been hypothesized as contributors to the dark matter content of the Universe. At the same time, their mergers could contribute to the recently observed population of gravitational-wave sources. We investigate the scenario in which primordial black holes form binaries at late times in the Universe. Specific
The traditional method for recycling brass chips is to send the scrap back to the material manufacturer for re-melting. Alternatively, brass chips can be reclaimed through hot forging operations at the production site. As an initial screening of the environmental impact of this novel reclamation method, the impacts of this new method was compared to conventional brass production (including recycli
Why should we teach tourism at universities?This presentation targets the question of why tourism should be part of university education. Presently, this is questioned by colleagues in traditional academic disciplines as well as by parts of the tourism industry, which are somewhat reluctant to employ people with a university degree. It is thus time for this matter to be raised. If we are to answer
Background: Breastfeeding rates in Sweden are declining, and it is important to identify women at risk for early cessation of exclusive breastfeeding. Objective: The aim of this study was to investigate factors associated with exclusive breastfeeding lasting less than two months postpartum. Methods: A population-based longitudinal study was conducted at Uppsala University Hospital, Sweden. Six hun
When literature, conflict and memory are linkaged one to another. This is the main intention that this article brings about into the centre of discussion. Written in a form of personal reflection, then followed by a deeper discussion on the main topic, I address the notion of so-called constructed memory in the context of understanding the Indonesian literature as the impact of the 1965 conflict o
The correct communication of the severity of violence is essential in the context of legal trials, custody cases, support of victims, etc., for providing fair treatment. A narrator that communicates their experiences of interpersonal violence may rate the seriousness of the incident differently than a rater reading the narrator’s text, suggesting that there exist perceptual differences (PD) in sev
The aim of the dissertation is to explore how actors within the food value chain form meaningful relationships, practically and emotionally, with food and through food. It analyzes the making of these relations through the lens of organic, local and heritage food. It demonstrates that the impetus common to various food initiatives – such as organic, local and heritage food – is that they try to br
The possible association between stress-related exhaustion and reduced activity in the hypothalamo-pituitary-adrenal (HPA) axis is increasingly in focus. The aim of the present study was to examine whether exhaustion measured in a non-patient population is associated with alterations in diurnal cortisol profile. The study population included 78 working individuals. The study group was dichotomised
An anthropomorphic phantom study was carried out in 2013-14 in two hospitals, one located in Russia (Mariinsky Hospital, Saint Petersburg) and the other in Sweden (Skåne University Hospital, Malmö). The aim of the study was to investigate the possibilities to reduce the patient dose from digital X-ray chest screening examinations. The existing chest imaging protocols were adjusted by changing the
Popular Abstract in Swedish Rovdjur påverkar strukturen och artsammansättningen i de flesta system. Både genom att äta upp bytesdjur och genom att inducera olika typer av försvar hos bytesdjuret kan rovdjur påverka andra organismer i systemet. Att undvika att bli upptäckt, och därmed sannolikt uppäten, av ett rovdjur är grundläggande för fortlevnaden hos alla bytesdjur. Under utvecklingens gång ha
We presented a study of charge-independent (CI) and charge-dependent (CD) two-particle differential number correlation functions R2 and transverse momentum correlation functions P2 in pp collisions at s=2.76 TeV with the PYTHIA and HERWIG models.Calculations were presented for unidentified hadrons in three pT ranges 0.2 < pT≤ 2.0 GeV/c, 2.0 < pT≤ 5.0 GeV/c, and 5.0 < pT≤ 30.0
