Search results

Datering med accelerator? Måhända låter det otympligt, men när det handlar om att datera med hjälp av sällsynta slag av grundämnen kan varje atom räknas. Då handlar det om att kunna räkna enskilda atomer, vilket är möjligt med acceleratorbaserad masspektrometri, AMS. Lunds Universitet har en accelerator anpassad just för den här sortens mätningar, vilken främst nyttjas av institutionerna för fysiFor decades, accelerator mass spectrometry (AMS) has been used for radiocarbon dating. The background of this technique is outlined along with an in-depth look at the graphitization process used to prepare samples for AMS analysis. The technology necessary to achieve the vacuum quality needed in graphitization and accelerator mass spectrometry is discussed as well. The graphitization system belong

Reklam kan inte ses som en isolerad kommunikation mellan företag och konsumenter, den existerar i samtiden, i en kontext och i ett samhälle som låter sig påverkas av den. Vad som exponeras i det offentliga påverkar de uppfattningar och föreställning människor har om omvärlden i ett långsiktigt perspektiv. Syftet med studien är att undersöka och skapa förståelse för hur reklambyråer hanterar balans

Molecular imprinting technology is a field where polymer technology is utilised to synthesise high affinity particles, much like antibodies. This project has dealt with the imprinting of the neurotransmitter molecules serotonin and histamine. Serotonin polymers were synthesised using methacrylic acid and acrylamide as functional monomers relying on hydrogen bonding for the imprinting effect. None

Syftet med mitt master projekt i industriell design vid IKDC var att utveckla och uppgradera produkten trygghetslarm. Detta larm skall kunna göra det möjligt för äldre och rörelsehindrade att bo kvar i hemmiljön, med tryggad kontakt till hemtjänsten när olyckan är framme. Bakgrunden till valet av projekt är bland annat personliga skäl, då trygghetslarm varit livsavgörande för några av mina släktin

The road haulage industry is a fundamental part of today’s society. The companies of haulage stand before a challenge, as the environmental and economic sustainability demands are increasing. The automotive industry tries to meet these demands by developing intelligent systems that will decrease the fuel consumption. The two systems, predictive controller and platooning, are two intelligent solut

In this report we study systems governed by the Saint-Venant shallow water equations interacting with boundary conditions including control. We derive closed form formulas for the open-loop behavior. These formulas rely on first, second and third order approximations which are based on a perturbation that we develop. Properties of these solutions are studied and comparisons with existing non-linea

Background The EU’s 20-20-20 targets determine that Finland’s share of energy consumption from renewable energy sources is to be 38 % by 2020, a target that the government intends to reach by expansion of wind power. The government has a beneficial feed-in tariff in place as an incentive for rapid wind power expansion, which has made both domestic and international developers evaluate the business

Resultatet av studien visar att det finns komparativa skillnader på tre olika nivåer. (1) På den nationella nivån framhålls den för arbetstagaren extensiva svenska arbetsrätten och den generösa sjukförsäkringen som potentiella orsaker till att sjukfrånvaron är högre i Sverige än i Danmark. (2) På den organisatoriska nivån konkluderas att de svenska organisationerna har starkare tonvikt på hälsa oc

The study aims to explore the relationship between migration and the quality of education, considering the lowering quality of higher education in Georgia as one of the main ‘push-factors’. The research itself tries to identify the main motivations of why Georgian students migrate. Furthermore, the main gaps and disadvantages of the higher education system of Georgia are investigated. The findings

BackgroundCapsaicinoids are produced by plants in the Capsicum genus and are the main reason for the pungency of chili pepper fruits. They are strong agonists of TRPV1 (the transient receptor potential cation channel subfamily V member 1) and used as active ingredients in pharmaceuticals for the treatment of pain. The use of bioengineered microorganisms in a fermentation process may be an eff

The impact of different spark designs on the ignition and combustion stability is studied using a 13-liter CNG fueled heavy duty spark ignited engine to search for the “optimal” spark design. Experimental results show that robust ignition can be achieved using a significantly shorter spark duration and lower energy than expected. A capacitive discharge ignition (CDI) system enabled to separately

Introduction: Current drug treatment of lower urinary tract disorders, for example, overactive bladder syndrome and lower urinary tract symptoms associated with benign prostatic hyperplasia, is moderately effective, has a low treatment persistence and some short- and long-term adverse events. Even if combination therapy with approved drugs may offer advantages in some patients, there is still a ne

Reuse of different types of experience is a key issue in successful improvement in software engineering. The approach taken in the Quality Improvement Paradigm (QIP) and its supporting organisation, tile Experience Factory (EF), is to define an Experience Base (EB), where all types of reusable objects are organised and stored. The objects may be of any type related to software development, for exa

Many long-term childhood cancer survivors suffer from treatment-related late effects, which may occur in any organ and include a wide spectrum of conditions. Long-term follow-up (LTFU) is recommended to facilitate early diagnosis and to ensure better health outcomes. Due to the heterogeneity of these sequelae, different specialists work together in the diagnosis and treatment of these conditions.

This open-access book surveys how digital technology can contribute effectively to improving our understanding of the past, through a sensory engagement based on the evidence of material culture. In particular, it encourages specialists to consider senses and human agency as important factors in studying ancient space, while recognising the role played by digital tools in enhancing a human-centred

The cleaning process of the bimetallic Pt3Sn(111) surface has been studied by means of low-energy electron microscopy (LEEM), microspot low-energy electron diffraction (μ-LEED), and X-ray photoemission electron microscopy (XPEEM). Different cleaning procedures, performed under ultra-high vacuum conditions (UHV), including sputtering with argon ions and repeated cycles of annealing up to 1500 K wer

BACKGROUND: eHealth applications are considered a technological fix that can potentially address some of the grand challenges in healthcare, including burnout among healthcare professionals, the growing burden of patients with chronic conditions, and retaining and recruiting healthcare professionals. However, as the deployment of eHealth applications in healthcare is relatively novel, there is a l

The beamlines at CERN's North and East Areas offer secondary beams in a wide range of momenta between 0.5 GeV/c and 400 GeV/c for fixed-target experiments as well as for test beam campaigns with a flexible configuration and variable beam composition and intensities. Recently, two new facilities for neutrino detectors tests have been established in an extension of the CERN North Area in context of

Asylum-seekers, like any population, need healthcare services, yet national laws sometimes restrict access to such services. The European Social Charter (revised) protects the right to health and medical services. However, the Charter has a complex application, and its scope is limited concerning foreigners. This article analyses to what extent the provisions of the Charter on the right to health