Sökresultat

Insekters DNA i luften? På senare år har flera forskningsrapporter visat att olika insektgrupper drastiskt minskar i antal. Till följd av detta kan man även se att artkompositionen förändrats och att andra organismer som är beroende av insekter, antingen för pollinering eller som föda, också minskar i antal. För att kunna förstå varför dessa förändringar sker så krävs en kontinuerlig övervakning In the face of widely reported declines in insect abundance and diversity, there is a great need for faster and easier insect monitoring methods as the already established methods are time consuming and only target specific species groups. In this study I investigate if metabarcoding of eDNA samples collected from the air can i) detect and identify insect species, ii) help quantify spatial and tem

Gynna pollinerande insekter i Ängelholms grönområden Ängelholms kommun vill förbättra förutsättningarna för pollinerande insekter i sina grönområden i staden. För att kartlägga förekomsten av humlor, solitärbin och blomflugor har inventeringar gjorts på ett antal platser. För att gynna pollinatörerna har förslag tagits fram på hur man kan öka mängden blommor genom att omvandla gräsmattor till merThe municipality of Ängelholm requested information on how to improve their urban green areas for pollinators. To find out the current status of pollinators, bumblebees, other bees and hoverflies, and to identify the key determinants of their diversity, two types of inventories were made during 2018, field observations and collection with pan traps. 14 sites in central Ängelholm were chosen based

Tänk om Apples Siri kunde fylla i en blankett åt dig på jobbet. Eller om Google Assistant planerade veckans inköpslista. Tänk om alla banala sysslor som du utför rutinmässigt utan någon djupare åtanke kunde skötas automatiskt av en artificiell intelligens, AI. Hur underhållande detta scenario än får vara så är en framtid där alla har en personlig universell assistent fortfarande långt borta. Men äThe Cascade-Correlation learning algorithm, Cascor, is a self-constructive learning algorithm introduced by Fahlman in 1990, which builds the networks one node at the time based on the errors of the network. Cascor has been criticized for creating excessively deep networks and easily overfit. This thesis investigates a few methods that use an internal validation set to add nodes that perform bette

The period of 1880-1910 was a time of fast modernization and industrialization in Transylvania. Fertility decline only started in the South, while in the North there was a marked fertility increase. This paper attempts to explain these differences, using a cross-sectional analysis of fertility for 4112 Transylvanian settlements. The factors affecting fertility are modeled using the Eastrelin-Crimm

Pollination av paranötsträd i ett föränderligt skogslandskap Paranötsträdet (Berthollethia excelsa) växer vilt i stora delar av Amazonas regnskog. Paranötter konsumeras globalt och är en viktig inkomstkälla för många småbrukare i Peru, Bolivia och Brasilien. På grund av dess ekonomiska värde är trädet fridlyst i dessa tre länder. Då skogsavverkning ökar till förmån för bland annat gruvdrift och The Brazil nut tree (Bertholletia excelsa) produces Brazil nuts, an economically important non-timber forest product. As land-conversion from forest to field increases throughout the Brazil nut tree’s range, many trees end up being the only remaining mature tree in open fields or in secondary forest. The Brazil nut tree is dependent on a variety of large bees for pollination and fruit set. It is t

Varje stjärna vi ser på himlavalvet en stjärnklar natt tillhör vår galax Vintergatan, och var och en har de en historia att berätta. Målet med astronomi, den äldsta grenen av naturvetenskapen, är att förstå hur dessa magnifika strukturer uppstod och formades till den skepnad de antar i dag. Stjärnor bildas ur enorma gasmoln, och vid slutet av sin livstid slungar de ut sina beståndsdelar i galaxen.Metal-poor (MP) stars in the Milky Way (the Galaxy) and its satellite galaxies open a window into the earliest times in the history of the Universe, probing the chemistry of the earliest times. Recent galaxy formation simulations predict that the oldest MP stars are those on tightly bound orbits in the inner regions of a galaxy (Tumlinson 2010). Applying this to the Milky Way, MP stars in the bulg

Visionen när områden ska detaljplaneläggas för ny bebyggelse, i centrala delar av städer, är att skapa gaturum med stadsliknande karaktär. Önskan finns om att skapa mötesplatser och ett livfullt område. För att uppfylla denna vision har detaljplaner utformats utan kvartersmark mellan byggnader och allmän plats vilket innebär att husfasaderna går i användningsgräns till den allmänna platsen. FöljdeThe vision when municipalities are planning new areas is to create a feeling of urbanity and create vibrant and safe places. Usually the municipalities have designed the detailed development plan with a space between the public space and the buildings. Lately this place has been removed from many detailed development plans in central urban areas to fulfil the vision of urbanity. It means that balc

Popular Abstract in Swedish Omkring 16% av alla cancerfall i världen beräknas vara orsakade av infektioner och omkring 5% av dessa orsakas av humant papillomvirus (HPV). HPV har etablerats som orsak till livmoderhalscancer och kondylom (könsvårtor). HPV-typer som förekommer på hud har förknippats med icke-melanom hudcancer såsom skivepitelcancer (SCC) men också ofarliga hudhudförändringar som aktiAround 5% of all cancer cases worldwide are caused by human papillomavirus (HPV) which has been established as the cause of cervical cancer and genital warts (condylomas). Cutaneous HPV types have been weakly associated with non-melanoma skin lesions such as squamous cell carcinoma (SCC) and actinic keratosis (AK). We have analyzed skin and genital lesions for presence of HPV-DNA in order to searc

The aim of this project is to make a model which could be used during risk identification in swedish underground stations. The model is based on a risk identification in T-centralen, Stockholm and will in a foreseeable way structure the risk sources that can affect personal safety. There will be suggestions concerning preventive measures in an underground station, both material and organizational.

Genom alla tider har migration varit ett frekvent inslag i människans utveckling. Idag har globaliseringen och de teknologiska framstegen möjliggjort ett än större flöde av människor världen över. De flesta länderna i den industrialiserade världen har en svag och i vissa fall till och med en negativ befolkningstillväxt samtidigt som många av u-länderna kämpar med en stark befolkningstillväxt. Dett

INTRODUCTION: The FEV1 quotient (FEV1Q), calculated as the index between FEV1 and a theoretical lower survivable FEV1 threshold of 0.4L for females and 0.5L for males, has been investigated as a novel method of interpreting results from lung function testing. The applicability of the FEV1Q in populations with chronic respiratory failure has not been studied, and the continuous association between

Accurate assessments of symptoms and illnesses are essential for health research and clinical practice but face many challenges. The absence of a single error-free measure is currently addressed by assessment methods involving experts reviewing several sources of information to achieve a best-estimate assessment. This assessment method is called the Expert Panel method in medicine, and the Best-Es

Title: The future is looking bright - Studies of burnout among musicians and music teachers. Since late 1970's, the burn-out-syndrome has been researched in several ways, especially among people working in care-oriented employments. The object with this study is to find out the biggest issues about why musicians and music teachers burn themselves out. This is based on musicians and music teach

This work focuses on the investigation on both local and global dielectric properties for a random wound single tooth winding, which represents a segment of the in-field electrical machine used on an Hybrid Wheel Loader. Finite Element Analysis (FEA) is used to predict the temperature stress while loading and illustrate the influences of dielectric properties (i.e. conductivity and dielectric cons

Deterministic lateral displacement (DLD) is a promising method for particle separation in the micrometer range, the proof of principle of which has been demonstrated to be successful in fields such as biomedicine and physics [1]. However, the enhanced particle dispersion (Figure 1 & 2) arising when separating very small particles (such as viruses and proteins) constitutes the main functional b

Using Deterministic Lateral Displacement (DLD), we are able to separate bacteria by their size and their chain length. This separation enables the study of these properties as factors of virulence.

We present an assay, based on optical DNA mapping in nanochannels that is capable of characterizing the plasmid content of bacterial isolates resistant to antibiotics in a fast an detailed way. In a single experiment we determine the number of different plasmids in each sample, their size, as well as a barcode that can be used for plasmid identification and tracing. In addition we demonstrate that

A theoretical framework for understanding public library development is presented; plural agonistics is used in combination with an approach inspired by post-humanism. The framework is related to examples from a study of two Swedish public libraries. Antagonism is viewed as foundational, and democracy as an ongoing process, the task being to transform antagonism to agonism, with institutions like