Filtyp
Background and purpose. The purpose of this study was to evaluate the performance of gantry angle optimisation (GAO) compared to equidistant beam geometry for two inverse treatment planning systems (TPSs) by utilising the information obtained from a range of treatment plans. Material and methods. The comparison was based on treatment plans generated for four different head and neck (H&N) cance
Popular Abstract in Swedish Hjärnan är ett av människans viktigaste organ och är det centra som styr våra känslor, minnen och sociala färdigheter. Hjärnan är också det organ som signalerar till musklerna i kroppen att utföra rörelser. När en person drabbas av Parkinsons sjukdom minskar signaleringen till musklerna, vilket medför att det blir svårt att röra sig och stelhet uppstår. Sjukdomen beror Cell-replacement therapy is a promising approach for treating patients with Parkinson ́s disease (PD). For this purpose, there is a need for developing a protocol that can generate high numbers of human transplantable mesencephalic dopaminer- gic (mesDA) neurons. For decades, studies have therefore been made in mouse and other model organisms in order to elucidate key-factors that can be used for
Negative pressure wound therapy (NPWT) has become widely adopted over the last 15 years and over 1000 peer reviewed publications are available describing its use. Despite this, there remains uncertainty regarding several aspects of usage. In order to respond to this gap a global expert panel was convened to develop evidence-based recommendations describing the use of NPWT. In this paper the result
The evidence for the existence of a chemical mechanism in surface-enhanced resonance Raman scattering (SERRS) of rhodamine 6G (R6G) adsorbed on colloidal silver excited at 1064 nm is reported on the basis of experimental and theoretical analyses. A weak absorption peak at around 1060 nm for R6G-functionalized silver nanoparticles was observed, which is not present in the individual spectra of R6G
A study on diffusion measurements of the protein lysozyme in liquids and agarose gels, at different pH and ionic strengths, has been performed using holographic laser interferometry. The measurements showed that the diffusive flux was very dependent on pH and ionic strength when the protein was not at its isoelectric point or when the charge of the lysozyme molecules was not screened by ions in th
Objectives To determine whether three-dimensional (3D) ultrasound including power Doppler examination of the cervix is useful for predicting time to spontaneous onset of labor or time to delivery in prolonged pregnancy. Methods A prospective study was conducted in 60 women who went into spontaneous labor. All underwent transvaginal 3D power Doppler ultrasound examination of the cervix immediately
In February 2002, the UNITA rebel leader Jonas Savimbi was shot dead by Angolan Government forces, thereby putting an end to almost four decades of war in Angola. Once peace had been declared, the Government of Zambia together with the Government of Angola and the UNHCR began to make arrangements for the voluntary repatriation of the large Angolan refugee population residing in Zambia. However, du
This study contributes to existing theory by underlining that product brands do have a gender. In addition, the results of this study show that the need for product gender congruence is minimized in Generation Y. Therefore, rethinking the traditional gender stereotyping of products may have more consumer appeal by being marketed to both sexes, or at least to emphasize more of the products attribut
The recycling sector and the solid waste management systems (SWMS) in developing countries greatly rely on scavengers, a vulnerable and marginal urban population that recover items or materials to be reused or recycled. As a new mindset towards waste emerges, considering it a resource instead of something useless and undesirable; governments, NGOs, private companies and other stakeholders slowly r
The thesis explores how the political discourse on refugees and asylum seekers is produced within portfolio committee meetings at the South African parliament. A critical discourse analysis investigates how statements of delegates of the Department of Home Affairs and Social Development foster unequal power relations and construct social identities perpetuating the on-going discourse on refugees a
A deterministic and probabilistic model for oilspill fires in nuclear power plant compartments has been developed. It's objective is to predict whether certain components in the compartment will cease to function as a result of the fire and to give the probability of failure. Results are presented for several scenarios in two compartments. The model has been implemented in the computer code OSFIC,
The severity of hand-arm vibration syndrome (HAVS) is usually graded according to the Stockholm workshop scales. Although the Stockholm workshop scales are regarded the gold standard for assessing the severity of HAVS, they are based primarily on subjective symptoms. The aim of the present study was to explore the agreement between Stockholm workshop scales and the outcome from ten well-defined cl
Catalytically active wire meshes were used to combust different pollutants present in flue gases from bio-fuel combustion, e.g. CO, propylene, terpenes and tar. Alumina was spray-deposited onto wire meshes of Kanthal AF (8-20 Tayler mesh) with a plasma spray equipment. The specific surface area of the ceramic layer was increased through wash coating, in-situ precipitation or sol-treatment. The cat
Dark-grown tigrina-d(12) mutants of barley (Hordeum vulgare L.) accumulate abnormally high amounts of the chlorophyll intermediate protochlorophyllide. In light dark cycles this leads to necrotic segments of the seedling leaves and lethality due to photodynamic damage by the excessive protochlorophyllide accumulated in the dark period. Upon inhibition of the early chlorophyll biosynthetic enzyme,
In 2000, the Clinton Administration in the U.S. adopted the Commodity Futures Modernization Act, which deregulated the U.S. trade with financial instruments on commodity markets. With respect to this adoption, it has been regarded as one catalyst for the Global food crisis 2008, where millions of individuals lacked provision and access to agricultural products and nutrition. From the perspective o
Hittills har över 50 miljoner ton e-avfall genererats globalt (World Economic Forum, 2019), vilket väcker frågan om den cirkulära ekonomins roll i kampen mot klimatförändringarna (Ellen MacArthur Foundation, 2021). I detta examensarbete undersöks möjligheterna för Axis Communications att införa ett system i USA för att ta tillbaka produkter som tagits ur bruk och återvinna dem. Inom detta område So far, over 50 million tonnes of e-waste have been generated globally (World Economic Forum, 2019), raising the question of the role of circular economy in combating climate change (Ellen MacArthur Foundation, 2021). This thesis explores the opportunities for Axis Communications to introduce a take back system for recycling decommissioned products in the US. Within this scope, several areas are
This thesis explores the socially constructed phenomenon that has arisen as a result of the proliferation of social network sites that has penetrated our daily lives. The qualitative study analysed how university students experienced the global outage of Facebook, Instagram and, WhatsApp on October 4th, 2021, because of the Meta-owned ecosystem of social media. Moreover, the study examined how 2 g
This paper addresses the problem of urban transport management in Sofia ? the capital city of Bulgaria. It highlights the tensions and contradictions in the current policy and practice and suggests that the adoption of mobility management in policy making would elevate municipal capacity to deal with complex transport-environment conflicts and set the framework for a sustainable development of the
Based on a new Swedish legislation for accident prevention and protection the support of the establishment of municipality accident prevention programs with documented basic data sets for decision-making is discussed. A division into four documents of basic data sets is proposed. A process is projected for the production, decree and compliment of municipal accident prevention programmes and the do
