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- Stocklassa, B, et al.
(author)
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Evaluation of a new X-ray fluorescent analysis technique for the creation of a Nordic hair database : Elemental distributions within the root and the virgin segment of hair fibers
- 2001
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In: JOURNAL OF COSMETIC SCIENCE. - New York : Society of Cosmetic Chemists. - 0037-9832 .- 1525-7886. ; 117:3, s. 312-
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Journal article (peer-reviewed)abstract
- A new, non-destructive X-ray fluorescence technique for quantitative estimation of elemental content in biological tissues has been developed. Technical and instrumental characteristics of the ITRAX X-ray spectrometer have been evaluated in relation to the properties of biological samples, i.e., human hair fibers. Thus, attenuation variations of the fluorescent X-rays in the hair bulk mass were demonstrated by analysis of sulfur, calcium, and zinc in a virgin part near the root of one hair fiber with elliptical cross section. By rotation of the hair fiber and successive analyses made of the same part of the hair fiber, the results showed that concentrations of elements varied as functions of the diameter of the analyzed hair volume. Other sources of errors are also discussed. The ITRAX instrument allows for precise, fast, non-destructive, simultaneous, quantitative recording of the detected elements and trace elements down to levels of 1 ppm (mug/g). It was used fur assessment of normal values of physiologically important elements present in hair in a cohort of normal, healthy Swedish, Caucasian individuals. The database constructed from data retrieved from a conceivably homogenous ethnic set of individuals represents, to our knowledge, the first of its kind.
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- Nilsson, Desirée
(author)
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Internally displaced, refugees and returnees from and in the Sudan : a review
- 2000
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Reports (other academic/artistic)abstract
- The Sudan has been at war since independence intermitted only by a brief period of peace that lasted for a decade. The civil war that has been ravaging the country as well as the conflicts in the neighbouring countries have contributed to the difficult problem of population displacement in the region. Sweden has for many years contributed disaster relief to the Sudan. The Swedish humanitarian development assistance directed to meet the needs of the Sudanese people is currently at a stable 70 million SEK. It is very important to take into account the experiences gained on population displacement in order to prevent more disasters from taking place but also to improve the assistance given to the people who have already left their homes. With this aim, the Swedish Government has just adopted a new strategy for humanitarian assistance to Sudan, focusing on protection for the internally displaced, particularly women and children. State of the art reviews concerning refugees and the displaced in Mozambique and Somalia have previously been published by the Nordic Africa Institute and Sida within the series Studies on Emergencies and Disaster Relief. This report is another contribution within that series and it will hopefully serve as a source to some of the research on population displacement from and in the Sudan. The report comprises a review of the literature and includes comments on priorities for future research.
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- Nilsson, Desirée
(author)
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Liberia - the eye of the storm : a review of the literature on internally displaced, refugees and returnees
- 2003
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Reports (other academic/artistic)abstract
- One of the most prominent, and from a humanitarian and human rights perspective most troubling aspects of internal conflicts during recent years is the plight of the internally displaced persons, and refugees. Forced to leave their homes in search of refuge, internally displaced persons often find themselves with little protection, with unclear rights, and without safe livelihoods. While their most important support generally comes from the communities receiving them, which often have very few resources, international humanitarian organisations have not been able to agree on clear mandates with regard to who should have the overall responsibility for assisting them. Although the international community is better organised to care for those who have crossed borders and become refugees, it is still struggling to finetune and coordinate available aid instruments and to mobilize sufficient resources in order to facilitate their post-conflict return, resettlement and reintegration. As this literature review of internally displaced persons, refugees and returnees shows in relation to Liberia, there are ongoing conflicts where we lack sufficient understanding of migration patterns and the socio-economic conditions of the displaced, an understanding which is a prerequisite for designing appropriate preventive and mitigating action. This review also highlights the severe lack of protection of civilians in Liberia, children in particular, which leads to forced recruitments to local armed groups as well as exposure to sexual violence.
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