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Previous work on intact thylakoid membranes showed that transient formation of a zeaxanthin radical cation was correlated with regulation of photosynthetic light-harvesting via energy-dependent quenching. A molecular mechanism for such quenching was proposed to involve charge transfer within a chlorophyll-zeaxanthin heterodimer. Using near infrared (880 - 1100 nm) transient absorption spectroscopy
Working as hairdressers has been associated with increased risk for cancer, particularly bladder cancer. To evaluate if current hairdressers have elevated risks of adverse health effects, we measured several biomarkers related to cancer-related DNA alterations. We enrolled 295 hairdressers and 92 non-hairdressers (all female non-smokers) from Stockholm and southern Sweden. Questionnaire data were
BACKGROUND: Total plasma homocysteine (tHcy) concentration is elevated in elderly patients with mental illness, and patients with vascular disease have higher plasma tHcy concentration than patients without vascular disease. METHOD: We investigated the influence of cobalamin/folate status and renal function on the association between plasma tHcy levels and vascular disease. RESULTS: There was a si
In Parkinson's disease (PD), the main pathology is a loss of nigrostriatal dopamine (DA) neurons. Clinical trials with intrastriatal transplantation of human embryonic mesencephalic tissue have shown that grafted DA neurons reinnervate the striatum, restore striatal DA release and, in some patients, induce major clinical benefit. Stem cells could provide an unlimited source of DA neurons for trans
OBJECTIVES: This study examined which individual and national factors affect condom use among adolescents. STUDY DESIGN: Multilevel analysis. METHODS: This study reviewed the data on bullying, alcohol use and condom use provided by 18 European countries and subnational entities in the Health Behaviour in School-Aged Children survey. Another eight contextual variables were also analysed. Three mult
B-cell development into antibody producing cells is a complex process that relies on the tightly controlled production of hundreds of genes and proteins. A B-cell is activated through the B-cell receptor (BCR) and this activation is modified by different co-stimulatory or inhibitory co-receptors. The concerted action of signals from BCR and from co-receptors decides the fate of the B-cells. The ma
Peripheral nerve tumours are uncommon. Our aims were to calculate the incidence and relative frequencies, to define sites of nerve tumours and to judge preoperative symptoms and outcomes of intervention. The results of 53 patients, with 68 tumours and histopathological diagnoses of true neoplasms, who had been operated on at the Department of Hand Surgery, Malmo, Sweden, between 1986 and 2007, wer
Determination of heart status during dialysis can im- prove patient monitoring. Pressure sensors in the dialysis machine measures the heart pulses that propagates in the body and enter the extracorporeal blood circuit. A peri- staltic blood pump, located in the same circuit, introduces strong periodic pressure pulses that interfere with the much weaker cardiac component. These signal characteristi
The institutional landscape of the EU has been transformed through the establishment of agencies and changes brought by the Lisbon Treaty. This article seeks to contribute to our conceptual and empirical understanding of European agencies post-Lisbon. It maps the current European agencies according to timing of establishment, size, functions, governance structures and financial arrangements, and d
The application of nitrogen vibrational CARS thermometry to sooty, premixed, atmospheric pressure flames has been investigated using a Nd:YAG laser based system. It was found that laser-produced C2 radicals strongly absorb part of the fundamental band peak in the CARS spectrum. This was the most severe interference to the CARS signal. A quantitative investigation of temperature errors caused by th
Background and purpose: beta(2)-Adrenoceptor agonists (beta(2)-agonists) are important bronchodilators used in the treatment of asthma and chronic obstructive pulmonary disease. At the molecular level, beta(2)-adrenergic agonist stimulation induces desensitization of the beta(2)-adrenoceptor. In this study, we have examined the relationships between initial effect and subsequent reduction of respo
Millions of deaf people around the world live without the possibility of going to school or learning a language and experience a prolonged disconnection from their social environments. The purpose of this study was to explore deaf people’s experiences in Mongolia of a transition from social and psychological isolation towards a process of inclusion. The research was carried out by using mainly n
The purpose of this thesis is to highlight the phenomenon of “Sex for Grades” in Liberian universities as an intrinsically relevant category of study by illuminating the relationships between agency and structures; structures that may be enabling or constraining. We do this by analysing how female students use their tactical agency and apply this to the theory of social navigation, a theory that h
This research has analyzed SVT’s broadcasted EU news coverage in 2012. SVT is Sweden’s main public service media outlet, and the point of the research was to understand how EU news has been covered by this media outlet. The reasons for why this is important is because the media plays a vital role in democracies for a number of reasons looked upon in this research, one of them being that the media
The credit is a financial service which holds a vital role to the transactions between the financial and non-financial enterprises with their customers. The goal of credit is to aid the legal and physical persons to successfully face and thus to overcome their difficult economical situations. Due to the fact that the VAT exemption status of granting, negotiation and management of credit causes neg
