Sökresultat

Filtyp

Din sökning på "*" gav 530798 sökträffar

Managing the remediation strategy of contaminated megasites using field-scale calibration of geo-electrical imaging with chemical monitoring

Groundwater contamination is a threat to drinking water resources and ecosystems. Remediation by injection of chemical reagents into the aquifer may be preferred to excavation to reduce cost and environmental footprint. Yet, successful remediation requires complete contact between contamination and reagents. Subsurface heterogeneities are often responsible for diffusion into low-permeable zones, w

Synthesis of glycophospholipid conjugates with mono- and disaccharides by enzymatic transphosphatidylation

Phospholipids, PLs, are interesting and highly abundant amphiphilic molecules, which self-assemble into 3D nanostructures that have big interest as formulation excipients in, for example, pharma industry. However, the structures that are formed by naturally occurring PLs usually suffer from rigidity problems, and the nanostructures have to be modified in various ways for improved stability. One su

Assessing the risks and opportunities posed by AI-enhanced influence operations on social media

Large language models (LLMs) like GPT-4 have the potential to dramatically change the landscape of influence operations. They can generate persuasive, tailored content at scale, making campaigns using falsified content, such as disinformation and fake accounts, easier to produce. Advances in self-hosted open-source models have meant that adversaries can evade content moderation and security checks

The potential of wetlands for mitigation of eutrophication and brownification

Increasing nutrient concentrations (eutrophication) and water color due to dissolved organic matter (brownification) pose continuous threats to freshwater ecosystems worldwide, threatening ecosystem services like drinking water supply. Changing the increasing trends of eutrophication and brownification on our aquatic ecosystems is challenging. However, constructed wetlands could be a potential loc

Decarbonising plastics – On the technologies and framings of carbon capture and utilisation

Plastics consist of fossil fuels, from both a feedstock and energy perspective and thus need to decarbonise. This thesis maps and explores the framings and technologies that surround plastics decarbonisation and the potential mitigation pathway of carbon capture and utilisation. Here, three of the main findings are presented.By unpacking how EU policymakers understand issues concerning plastics, t

Computational Methods and Measurements for Direct and Inverse Scattering of Microwaves

Electromagnetic waves are widely used in society today for a multitude of applications. Design of electromagnetic devices and applications requires accurate methods for evaluating performance, which often means modern computational methods. While these methods have seen tremendous development in recent decades, it is still very important to perform measurements to validate the performance of devic

The contributions of avoidable causes of death to gender gap in life expectancy and life disparity in the US and Canada: 2001–2019

ObjectivesThis study measures public health policies' and healthcare system's influence, by assessing the contributions of avoidable deaths, on the gender gaps in life expectancy and disparity (GGLD and GGLD, respectively) in the United States (US) and Canada from 2001 to 2019.MethodsTo estimate the GGLE and GGLD, we retrieved age- and sex-specific causes of death from the World Health Organizatio

Tomographic ultrasound for three-dimensional visualization of temporal arteries

ObjectiveConventional two-dimensional ultrasound has been assessed for the non-invasive diagnosis of giant cell arteritis (GCA), but the results are operator dependent, resulting in low sensitivity. Tomographic three-dimensional (3D) ultrasound is a novel technique that enables the objective documentation of vessel geometry. Here, for the first time, its utility is assessed for visualizing tempora

Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC

The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton-proton collision datasets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. These correspond to integrated luminosi

Against Book Enclosures : Moving Towards More Diverse, Humane and Accessible Book Publishing

Matthew Gandy's Commentary in Area (2023) criticised the decision of the national funder UKRI to mandate that all books resulting from the research that it funds must be published open access (OA) from 2024. This raises many issues of importance to geographers. We argue that scholars in the discipline need to fight for affordable and ethically produced OA books, not ‘legacy’ modes of publishing. I

Queer Littoral Desire in Edmund Gosse's Father and Son (1907)

This article investigates Edmund Gosse's Father and Son (1907) through the lens of the queer blue humanities. Drawing on the marine science of the English naturalist Philip Henry Gosse and the Jamaican naturalist Richard Hill, and the fin-de-siècle literary interest in the queer littoral, I show how encounters with coastal life fostered playful, fluid ways of thinking about gender and sexuality. A

Correlation Attacks on Stream Ciphers

Correlation attacks apply mainly to stream ciphers and can be considered as an extension of the idea of distinguishing attacks to collect information on secret key bits. The original correlation attack was proposed by Siegenthaler on nonlinear combination generators. In a nonlinear combination generator, the keystream is generated as the output of a Boolean function with inputs being sequences fro

Demographic, clinical, biomarker, and neuropathological correlates of posterior cortical atrophy: an international cohort study and individual participant data meta-analysis

Background: Posterior cortical atrophy is a rare syndrome characterised by early, prominent, and progressive impairment in visuoperceptual and visuospatial processing. The disorder has been associated with underlying neuropathological features of Alzheimer's disease, but large-scale biomarker and neuropathological studies are scarce. We aimed to describe demographic, clinical, biomarker, and neuro

Kontroll i Kaoset - En Fallstudie på Oatlys Kris- och Kommunikationsstrategier

Forskningsfråga: Hur samspelar intern och extern kriskommunikation med varandra och hur spelar detta roll för krishanteringen i företag som tillämpar varumärkesaktivism? Syfte: Syftet med denna uppsats är att få en djupare förståelse för hur intern och extern kriskommunikation påverkar varandra och hur samspelet mellan dessa påverkar företagets krishantering. Metod: Det metodval som gjordes var uResearch questions: How do internal and external crisis communication interact with each other and how does this play a role in crisis management in companies that apply brand activism? Purpose: The purpose of this essay is to gain a deeper understanding of how internal and external crisis communication affect each other and how the interaction between these affect the company's crisis managem

The role of customer-based brand equity in the direct-to-consumer business model

This paper aims to explore and analyze the intricate relationship between the direct-to-consumer (D2C) business model and customer-based brand equity. This study utilizes a qualitative approach to gather primary data, aiming to gain profound insights into customer perspectives regarding the impact of the D2C business model on trust, loyalty, and value perception. A focus group methodology was chos

How to Become a Successful Challenger Brand

The purpose of this paper is to find the critical success factors of becoming a successful Challenger Brand. This paper aims to analyse the strategies and factors that contribute to the success and failures of these challenger brands. The report examines the importance of market research, customer-centricity, timing, and differentiation as the foundational principles for Challenger Brands to enter

Multi-Level-Marketing shaping and supporting Brand Identity

Purpose: The purpose of this study is to assess potentially existing interdependencies between Brand Identity and a Multi-Level Marketing approach. Furthermore, the study aims to give theoretical and managerial recommendations for marketers as well as brand managers in order to make use of these interdependencies. The broader aim is to present the concept of Multi-Level Marketing that can be a val