Sökresultat

Popular Abstract in Swedish För att förstå på vilket sätt viktiga pollinerande insekter påverkas av det omgivande landskapets struktur och innehåll, har jag studerat populationer av humlor (fam. Bombus). Jag har också gjort en analys av sambandet mellan jordbruksintensitet of landskapets komplexitet. Mina studier har utförst i Skåne och jag har valt studieområden bl.a. baserat på hur stora åkrar oTo investigate recent declines in bumblebee populations, I carried out landscape analyses, made field studies of bumblebees, flowering plants and pollination in an agricultural region in southernmost Sweden. Studies were carried out in landscapes of contrasting agricultural intensity and land-cover configuration; "simple" landscapes highly dominated by large crop fields, and "complex" with mixed f

A warmer climate may increase the risk of attacks by insect pests on agricultural crops, and questions on how to adapt management practice have created a need for impact models. Phenological models driven by climate data can be used for assessing the potential distribution and voltinism of different insect species, but the quality of the simulations is influenced by a range of uncertainties. In th

Background: A European concerted action (the EuroNatal study) investigated differences in perinatal mortality between countries of Europe. This report describes the methods used in the EuroNatal international audit and discusses the validity of the results. Methods: Perinatal deaths between 1993 and 1998 in regions of ten European countries were identified. The categories of death chosen for the s

Som ett komplement till den allmänna linjelagda kollektivtrafiken finns anropsstyrd kollektivtrafik, vilken kan förekomma i olika varianter och ämnar svara mot den låga efterfrågan på kollektiva resor som finns på exempelvis landsbygd. Närtrafik är en svensk benämning på de olika former av anropsstyrd kollektivtrafik som förekommer. I södra Sverige arbetar regionala kollektivtrafikmyndigheter (RKMDemand responsive transport (DRT) occurs in different varieties and intends to respond to the low demand for public transport in rural areas, for example. In southern Sweden, regional public transport authorities work together in a network with the ambition to improve public transport within the regions. This applies not least to the regional DRT. The aim of this study is to compile and analyze ho

I detta examensarbete kommer sex miljöcertifieringssystem att jämföras med varandra för att se hur dessa beaktar inomhusmiljön i nybyggnationer för skolor, lokaler och bostäder. Dessutom kommer det att redovisas vilka krav och förordningar som dessa förhåller sig till för att uppnå en god inomhusmiljö samtidigt som man beaktar människans behov. Dessa miljöcertifieringssystem som kommer att jämföraIn this thesis, six environmental certification systems will be compared with each other, in order to analyze how these systems, take the indoor environment into account in new buildings for schools, premises and housing. In addition, it will be reported what requirements and regulations these relate to in order to achieve a good indoor environment while taking into account people's needs. The

Background & Problem: In previous years, there has been low focus on inventory control. Due to high margins on the products, a high inventory level has been kept to reduce the risk for lost sales. Today, the company is expanding, and therefore need to improve the inventory control to reduce tied-up capital. Purpose: The main purpose of this thesis is to reduce capital tied-up in inventories. B

This study attempts to receive insights and thus, expand the general understanding of customers‟ perceptions and associations towards store image for grocery store in an emerging Lithuania market. The case study of Rimi Baltic company is taken as an example. Further on, a qualitative strategy is employed in this research. Information is collected by employing photo elicitation method, tw

Plant species effects on microbial communities are attributed to changes in microbial community composition and biomass, and may depend on plant species specific differences in the quality of resources (carbon) inputs. We examined the idea that plant-soil feedbacks can be explained by a chance effect, which is the probability of a highly productive or keystone plant species is present in the commu

Ensuring sustainable consumption and production is one of the United Nations’ Sustainable Development Goals. Sustainable consumption can be supported through regulatory processes. Voluntary private regulatory schemes claiming to contribute to sustainability are a rapidly growing form of regulation. We study one such voluntary sustainability scheme in order to look at the opportunities and challeng

Wildfires pose a significant risk to human livelihoods and are a substantial health hazard due to emissions of toxic smoke. Previous studies have shown that climate change, increasing atmospheric CO2, and human demographic dynamics can lead to substantially altered wildfire risk in the future, with fire activity increasing in some regions and decreasing in others. The present study re-examines the

Cloud computing has become a compelling paradigm built on compute and storage virtualization technologies. The current virtualization solution in the Cloud widely relies on hypervisor-based technologies. Given the recent booming of the container ecosystem, the container-based virtualization starts receiving more attention for being a promising alternative. Although the container technologies are g

This project consists of a thorough study of an energy efficient and moisture safe row-house, located in the Nordic climate of Sweden. Climate and site analysis, building scale design decisions and finally the evaluation and optimization of its energy performance were different steps of a holistic process aiming at the architectural quality, energy efficiency, comfort and the well-being of users.

The procurement process can be defined as all the activities required in getting a product or a service from the supplier to a final destination. It encompasses the purchasing function, storing, transportation and manages the relations between suppliers and internal customers. It is a cyclical process involving the following activities: analysis, planning, implementation, and measurement. The perf

Optimally using multi-source remote-sensing (RS) and/or reanalyzed hydrological products requires knowledge of each product's accuracy and inter-product error cross-correlations. Quadruple collocation (QC) analysis can potentially solve for this error information without the reliance of high-quality ground references. However, QC requires at least three independent products for a variable of inter

Importance: Obsessive-compulsive disorder (OCD) is associated with adverse health-related outcomes. However, pregnancy and neonatal outcomes among women with OCD have been sparsely studied. Objective: To evaluate associations of maternal OCD with pregnancy, delivery, and neonatal outcomes. Design, Setting, and Participants: Two register-based cohort studies in Sweden and British Columbia (BC), Can

Loss and fragmentation of semi-natural grasslands have had negative consequences for grassland biodiversity, such as butterflies. Urban parks and other urban green spaces have so far largely been overlooked as suitable butterfly habitats, although they could potentially sustain diverse butterfly populations over time. We analysed the temporal change in butterfly species assemblages in urban green

BackgroundMany countries and regions undergo structural changes that intent to improve the effectiveness and quality of care. Until 2007, the municipalities, counties, hospitals and pharmacies shared the smoking cessation activities almost equally in Denmark. Among others, the Danish Healthcare Reform 2007 intended to add responsibility for smoking cessation intervention at county level to the mun

The ecosystem-atmosphere flux of biogenic volatile organic compounds (BVOCs) has important impacts on tropospheric oxidative capacity and the formation of secondary organic aerosols, influencing air quality and climate. Here we present within-canopy measurements of a set of dominant BVOCs in a managed spruce- and pine-dominated boreal forest located at the ICOS (Integrated Carbon Observation Syste

Regeneration of Norway spruce, Picea abies, forests is to a large extent depending on the production of seeds from high quality plus trees in orchards. However, the seed yield is variable and unpredictable due to weather, pest insects and diseases. Thus, more knowledge is needed to improve planning of harvest and mitigation of pests and diseases to secure future forest regeneration. In this study,