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Ball-rolling dung beetles are known to integrate multiple cues in order to facilitate their straight-line orientation behaviour. Recent work has suggested that orientation cues are integrated according to a vector sum, that is, compass cues are represented by vectors and summed to give a combined orientation estimate. Further, cue weight (vector magnitude) appears to be set according to cue reliab
BackgroundOlder patients are often vulnerable and highly dependent on healthcare professionals’ assessment in the event of acute illness. In the context of ambulance services, this poses challenges as the assessment is normally conducted with a focus on identifying life-threatening conditions. Such assessment is not fully satisfactory in a patient relationship that also aims to promote and protect
BACKGROUND: This is an open-label, single-arm, single-center pilot study using 7-Tesla in vivo proton magnetic resonance spectroscopy (1H MRS) to measure brain cortical glutathione concentration at baseline before and during the use of oral fumarates as a disease-modifying therapy for multiple sclerosis. The primary endpoint of this research was the change in prefrontal cortex glutathione concentr
Water damage in the indoor environment is a rising issue within Nordic countries with about 90 000 cases in appx. 6.5 millioninsurance is reported annually in Sweden, and corresponding numbers are in Denmark and Norway. The question thenbecomes what type of measures residents, building managers, and insurance companies can take in the maintenance andoperation phase to decrease the impact of the wa
Purpose: Tau pathology is associated with concurrent atrophy and decreased cerebral blood flow (CBF) in Alzheimer’s disease (AD), but less is known about their temporal relationships. Our aim was therefore to investigate the association of concurrent and longitudinal tau PET with longitudinal changes in atrophy and relative CBF. Methods: We included 61 individuals from the Amsterdam Dementia Cohor
Importance: We know little about the transmission of obsessive-compulsive disorder (OCD) across generations. Objective: To evaluate the sources of parent-offspring transmission of OCD and familial cross-generational association with more typical anxiety disorders. Design, Setting, and Participants: This Swedish population register-based study analyzed data for offspring born in Sweden from 1960 to
In this study of the effects of lead on the endocrine system, 77 secondary lead-smelter workers (i.e., 62 active and 15 retired) were compared with 26 referents. Lead concentrations were determined in plasma with inductively coupled plasma mass spectrometry (i.e., index of recent exposure), in blood with atomic absorption spectrophotometry, and in fingerbone with K x-ray fluorescence technique (i.
Purpose: Avian haemosporidians are widespread parasites, occurring in many bird families and causing pathologies ranging from rather benign infections to highly virulent diseases. The state of knowledge about lineage-specific intensities of haemosporidian infection (i.e., parasitaemia) is mainly based on infection experiments conducted under laboratory conditions. The levels and range of parasitae
Water is an essential parameter for fungal degradation of wood, but degradation primarily occursat high moisture levels at water potential in the range of -4 to -0.1 MPa, which corresponds to 97-99.9% relative humidity. At these moisture levels, water is present in the wood structure both inand outside of cell walls. The majority of previous studies on the interaction between wood andwater for unt
To achieve global change in order to battle climate change, it is important that consumers all over the world actively engage in more sustainable consumption. This is particularly important in Asia where 90 percent of the global consumption growth will occur during the next decade. This chapter looks at two countries in Asia, Taiwan, and China, which share a similar culture and language, but diffe
The core-multishell wurtzite structure (In,Ga)As–(Ga,Al)As–(Ga,Mn)As semiconductor nanowires have been successfully grown on GaAs(111)B substrates using MBE technique. The nanowires cores were grown with gold eutectic catalyser in vapour–liquid–solid growth mode. The double shell overgrowth, on the side facets of nanowires, was performed using lower substrate temperature (about 400 ◦C, and 230 ◦C,
BACKGROUND: Parkinson's disease (PD) is a chronic neurodegenerative disorder. There is limited knowledge about the function of the hypothalamic-pituitary-adrenal axis in PD. The primary aim of this prospective study was to analyze diurnal salivary cortisol concentrations in patients with PD and correlate these with age, gender, body mass index (BMI), duration of PD, and pain. The secondary aim was
Sammanfattning: På nordöstra Gotland, i Slite, har en metod för kemisk karaktärisering av den siluriska lagerfölj-den prövats. Syftet med studien har varit, att på uppdrag av Cementa AB ta fram en förbättrad och effektivare me-tod för karaktärisering av kalksten från borrhålsinformation som är anpassad för deras industriella verksamhet. Själva metodutvecklingen baseras på resultat från kemisk analAbstract: On the north–eastern part of Gotland, in Slite, a mapping method has been tested in the Silurian bed-rock. The aim of the study was to develop a new mapping method adapted for industrial purposes on behalf of Ce-menta AB. The developed method is based on chemical analyses of drill cuttings and geophysical surveys. The combination of both of these methods forms the basis for the classific
The purpose of the study is to investigate in what ways the safety work on site differs from the recommendations in the statutory regulations. The purpose is also to determine in what ways safety precautions are taken in order to avoid the hazards of falls from heights. Furthermore, the purpose of the study is to cast light on the level of knowledge that the construction workers possess regarding
This research aims to create a better understanding of a little-known phenomenon by exploring the ways consultants create and perceive personal digital brands on an internal collaboration platform, together with the different dimensions of expectations they experience. Following the interpretive paradigm, our primary method contained ten semi-structured interviews with consultants working at a glo
Syfte Syftet med denna uppsats är på kort sikt undersöka om det finns en optimal placeringshorisont för frimärksaktier efter deras IPO. Utifrån detta analyseras huruvida en investeringsstrategi kan skapas som genererar överavkastning i förhållande till OMXSPI. Metod Studien är en kvantitativ eventstudie som enbart använder sekundärdata. Studien använder ett antal olika statistiska och ekonometrPurpose The purpose for this thesis is to evaluate the short-term optimal holding period for penny stocks on the Swedish market after IPO. It analyzes if there can be an investment strategy formed that yields an abnormal return compared to the general index OMXSPI. Methodology This study is a quantitative event study that only utilizes secondary data. The paper uses several different statistica
This thesis purpose is to investigate to what extent gender equality norms have developed in Sweden over the last 40 years. In order to do this I will use Carol Bacchi’s method, ”What’s the problem represent to be”, and six questions that she has created within this method. These questions are applied on four different governmental propositions, that discuss the parental leave insurance and gender
This research departs from two domains within the research field of consumer culture theory (CCT), Consumer Identity Projects and Marketplace Cultures. The goal was to add insights to the field by investigating social distinction through exploration of a context that traditionally has been characterized as being democratic and folksy. This research will study speciality coffee consumers as they di
Utveckling av mätteknik för mätning av rörligheten i knäleder hos barn med Cerebral pares Cerebral pares (CP) är en neurologisk störning som kan leda till förlust eller nedsättning av de motoriska funktioner som påverkar kroppens rörelser, muskelkontroll, koordination och balans. CP kan orsaka obalanser mellan musklerna som kan leda till kontrakturer. Kontrakturer innebär att musklerna förkortas Cerebral Palsy, commonly referred to as CP, is a neurological disorder that results in loss or impairment of motor function, which affects body movement, muscle control, muscle coordination and balance. In Sweden, about 200 children are diagnosed with Cerebral Palsy every year and the disorder can cause imbalances between the muscles. These imbalances can lead to contractures which is equiva- lent
Moral and ethical considerations have always been important in discussions about warfare and the development of the international community and body of international humanitarian law, laws whose fundamental ethics that can be attributed to Just War Theory. With the changing nature of conflicts and due to the lack of internationally declared principles of just and unjust wars, this thesis argues th
