| 1. |
- Bull, Peter, et al.
(author)
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Förstudie obemannade farkoster
- 2012
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Reports (pop. science, debate, etc.)abstract
- Obemannade farkoster används allt oftare, och i allt fler roller, i dagens kon- flikter. Denna rapport ger en bred överblick över området militära obemannade farkoster, samt rekommendationer för inriktningen av framtida FoU-satsningar inom området.Överblicken över området har fokus på både system, förmågor och verksam- heter som är relevanta för Försvarsmakten. Genom att låta de insatsförmågor som definieras i FMUP (Försvarsmaktens utvecklingsplan) gå som en röd tråd genom rapporten, både när specifika system diskuteras och när möjliga scena- rier där obemannade farkoster kan vara till nytta beskrivs, har vi försökt hålla både bredd och relevans i dokumentet.Rekommendationerna vilar på en genomgång av de inriktningsdokument som producerats i Försvarsmakten, t.ex. Perspektivplanneringen och FMUP, besök vid de enheter som dagligen använder obemannade farkoster, UAV-enheten i Karlsborg och Swedec i Eksjö, samt den områdesöverblick som nämns ovan. Slutsatserna är att den effektivaste kompetensuppbyggnaden och kunskapsöver- föringen fås om man skapar breda tvärvetenskapliga projekt inom respektive systemkategori (UAV, UGV, etc) med nära kontakter till materielförsörjnings- processen och perspektivplaneringen. Dessa kan samla kompetensen inom FHS och FOI, övervaka forskningsfronten genom att bevaka tävlingar, konferenser samt delta i internationella samarbeten, samt överföra det samlade resultaten till Försvarsmakten genom demonstrationer av verkliga eller simulerade delsy- stem och interaktiva simuleringar av hela system. Just systemsimuleringar kan göras särskilt realistiska, eftersom interaktionen med de riktiga obemannade systemen till stor del sker igenom kontrollstationernas datorer. På så sätt ska- pas en känsla för både hot och möjligheter med de nya systemen, vilket gagnar både taktikutveckling och materielprocesser.
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| 2. |
- Kangsepp, P., et al.
(author)
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Filter-based treatment of leachate from an industrial landfill containing shredder residues of end-of-life vehicles and white goods
- 2010
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In: Waste Management. - : Elsevier. - 0956-053X .- 1879-2456. ; 30:2, s. 236-245
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Journal article (peer-reviewed)abstract
- A pilot plant was set up to treat leachate from an industrial landfill containing shredder residues of end-of-life vehicles and white goods. The treatment plant consisted of aeration and sedimentation steps for pre-treatment, and a filter. The plant was designed to simultaneously remove various types of pollutants. The efficiencies of pre-treatment and of the main treatment step were investigated over a period of 3 years at the landfill site. By continuous aeration of the leachate the concentrations of Fe and Mn were reduced by 55% and 49%, respectively. By prolonged sedimentation suspended solid content was noticeably reduced (72%). in the filter, consisting of a mixture of peat and carbon-containing ash as a treatment medium, very high reduction of polar organic compounds, e.g. phenol (74%), o-and p-cresol (91%), and 2,4-dimethylphenol (73%), high average reduction of metals, e.g. Pb (78%), Fe (74%), Cu (73%), Mn (56%), Sn (55%), and Zn (47%), and good average reduction of DOC (26%), Tot-N (23%) and NH4-N (46%) were achieved. Sixty non-polar compounds in the leachate, identified by GC-MS screening, occurred at trace level. Most of them were considerably reduced in the filter.
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| 3. |
- Nilson, K., et al.
(author)
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Potassium-intercalated H2Pc films : Alkali-induced electronic and geometrical modifications
- 2012
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In: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 137:4, s. 044708-
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Journal article (peer-reviewed)abstract
- X-ray spectroscopy studies of potassium intercalated metal-free phthalocyanine multilayers adsorbed on Al(110) have been undertaken. Photoelectron spectroscopy measurements show the presence of several charge states of the molecules upon K intercalation, due to a charge transfer from the alkali. In addition, the comparison of valence band photoemission spectra with the density functional theory calculations of the density of states of the H2Pc- anion indicates a filling of the formerly lowest unoccupied molecular orbital by charge transfer from the alkali. This is further confirmed by x-ray absorption spectroscopy (XAS) studies, which show a decreased density of unoccupied states. XAS measurements in different experimental geometries reveal that the molecules in the pristine film are standing upright on the surface or are only slightly tilted away from the surface normal but upon K intercalation, the molecular orientation is changed in that the tilt angle of the molecules increases.
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| 4. |
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| 5. |
- Boldemann, C., et al.
(author)
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Preschool outdoor play environment may combine promotion of children's physical activity and sun protection. Further evidence from Southern Sweden and North Carolina
- 2011
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In: Science and Sports. - : Elsevier BV. - 0765-1597. ; 26:2, s. 72-82
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Conference paper (peer-reviewed)abstract
- Objective. - To study the impact of preschool outdoor environments on children's physical activity and solar ultraviolet (UV) exposure at different latitudes and countries. Methods. Outdoor environments of 11 preschools (two in Raleigh NC, USA, Lat.36 degrees N, nine in Malmo, Sweden, Lat.55 degrees N) were scored (OPEC) regarding space, vegetation, hilly terrain and level of integration between open spaces, vegetation and play structures. Free sky (%) was determined by imaging. Physical activity was measured by pedometers and solar UV-exposure by polysulphone dosimeters during 5 days in spring 2009, and individual background data gathered by questionnaires and anthropometric measurements. Global UV radiation was measured and available individual UV radiation (%) computed. Results. - In Malmo, mean step count/minute was 21.2 in preschools with high-scored environment vs. 17.6 in low-scored environments, and UV-exposure lower, 26% vs. 43% of available UV during outdoor stay. In Raleigh, step count/minute was 12.3 and UV-exposure of available UV 27% during outdoor stay. Conclusions. - Step count/minute was lower in Raleigh than in Malmo, but in Malmo children at low-scored environments ran a higher risk of sunburn than in Raleigh. Trees and shrubbery integrated in children's playscape trigger both physical activity and sun-protective behaviour in Sweden, and previous measurements in Stockholm were confirmed. Such outdoor environment should be recommended, but the role of season and climate needs to be further explored. (C) 2011 Elsevier Masson SAS. All rights reserved.
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| 6. |
- Holldack, K., et al.
(author)
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Single bunch X-ray pulses on demand from a multi-bunch synchrotron radiation source
- 2014
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 5
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Journal article (peer-reviewed)abstract
- Synchrotron radiation facilities routinely operate in a multi-bunch regime, but applications relying on time-of-flight schemes require single bunch operation. Here we show that pulse picking by resonant excitation in a storage ring creates in addition to the multi-bunch operation a distinct and separable single bunch soft X-ray source. It has variable polarization, a photon flux of up to 10(7)-10(9) ph s(-1)/0.1%BW at purity values of 10(4)-10(2) and a repetition rate of 1.25 MHz. The quasi-resonant excitation of incoherent betatron oscillations of electrons allows horizontal pulse separation at variable (also circular) polarization accessible for both, regular 30 ps pulses and ultrashort pulses of 2-3 ps duration. Combined with a new generation of angularly resolving electron spectrometers this creates unique opportunities for time-resolved photoemission studies as confirmed by time-of-flight spectra. Our pulse picking scheme is particularly suited for surface physics at diffraction-limited light sources promising ultimate spectral resolution.
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| 7. |
- Isung, J, et al.
(author)
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Low vascular endothelial growth factor and interleukin-8 in cerebrospinal fluid of suicide attempters
- 2012
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In: Translational Psychiatry. - : Springer Science and Business Media LLC. - 2158-3188. ; 2, s. e196-
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Journal article (peer-reviewed)abstract
- A dysregulated immune system influencing pathways for cytokine regulation and growth factor expression is implicated in the pathophysiology of several neuropsychiatric disorders. Here, we analyzed cerebrospinal fluid (CSF) cytokines and growth factors with an ultra-sensitive immunoassay system in 43 medication-free suicide attempters and 20 healthy male volunteers. CSF vascular endothelial growth factor (VEGF) and CSF interleukin-8 (IL-8) levels were significantly lower in suicide attempters compared with healthy controls. Further, CSF VEGF showed a significant negative correlation with depression severity. CSF IL-6 levels did not differ between suicide attempters and healthy controls. Low CSF levels of VEGF may represent a lack of trophic support to neurons and downregulation of neurogenesis in the hippocampus reflecting more severe depressive states. IL-8 has also been reported as important in neuroprotection as well as having chemokine activity in the innate immune response. The results support a role for an impaired innate immunity and dysregulation of neuroprotection in the pathophysiology of depression and suicidal behavior.
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| 8. |
- Jaarsma, Tiny, et al.
(author)
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Sexual counselling of cardiac patients : nurses´ perception of practice, responsibility and confidence
- 2010
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In: European Journal of Cardiovascular Nursing. - : Sage Publications. - 1474-5151 .- 1873-1953. ; 9:1, s. 24-29
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Journal article (peer-reviewed)abstract
- Background: Cardiac patients may experience problems with sexual activity as a result of their disease, medications or anxiety and nurses play an important role in sexual counselling. We studied the practice, responsibility and confidence of cardiac nurses in the sexual counselling of these patients.Method: An adapted version of the nurses' survey of sexual counselling of MI patients was administered during a scientific meeting of the Council on Cardiovascular Nursing and Allied Professionals within the European Society of Cardiology.Results: Most of the 157 cardiovascular nurses (87%) who completed the survey felt responsible to discuss sexual concerns with their clients, especially when patients initiated a discussion. However in practice, most respondents rarely addressed sexual issues. The items that nurses reported to counsel patients were closely related to the cardiac disease, symptoms and medications and seldom more sensitive subjects (e.g. foreplay, positions). Nurses estimated that their patients could be upset (67%), embarrassed (72%) or anxious (68%) if they were asked about sexual concerns. One-fifth of the nurses felt they had insufficient knowledge and 40% sometimes hesitated to discuss sexual concerns with clients because they might not know how to answer questions. Additional education on sexuality was significantly related to being more comfortable and active in sexual counselling.Conclusion: Although cardiac nurses feel responsible and not anxious discussing patients' sexual concerns, these issues are not often discussed in daily practice. Nurses might need more knowledge and specific practical training in providing information on sexual concerns and sexual counselling to cardiac patients.
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| 9. |
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| 10. |
- Lind, Ulrika, et al.
(author)
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Octopamine receptors from the barnacle balanus improvisus are activated by the alpha2-adrenoceptor agonist medetomidine.
- 2010
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In: Molecular pharmacology. - : American Society for Pharmacology & Experimental Therapeutics (ASPET). - 1521-0111 .- 0026-895X. ; 78:2, s. 237-48
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Journal article (peer-reviewed)abstract
- G protein-coupled octopamine receptors of insects and other invertebrates represent counterparts of adrenoceptors in vertebrate animals. The alpha(2)-adrenoceptor agonist medetomidine, which is in clinical use as a veterinary sedative agent, was discovered to inhibit the settling process of barnacles, an important step in the ontogeny of this crustacean species. Settling of barnacles onto ship hulls leads to biofouling that has many harmful practical consequences, and medetomidine is currently under development as a novel type of antifouling agent. We now report that medetomidine induces hyperactivity in the barnacle larvae to disrupt the settling process. To identify the molecular targets of medetomidine, we cloned five octopamine receptors from the barnacle Balanus improvisus. We show by phylogenetic analyses that one receptor (BiOctalpha) belongs to the alpha-adrenoceptor-like subfamily, and the other four (BiOctbeta-R1, BiOctbeta-R2, BiOctbeta-R3, and BiOctbeta-R4) belong to the beta-adrenoceptor-like octopamine receptor subfamily. Phylogenetic analyses also indicated that B. improvisus has a different repertoire of beta-adrenoceptor-like octopamine receptors than insects. When expressed in CHO cells, the cloned receptors were activated by both octopamine and medetomidine, resulting in increased intracellular cAMP or calcium levels. Tyramine activated the receptors but with much lesser potency than octopamine. A hypothesis for receptor discrimination between tyramine and octopamine was generated from a homology three-dimensional model. The characterization of B. improvisus octopamine receptors is important for a better functional understanding of these receptors in crustaceans as well as for practical applications in development of environmentally sustainable antifouling agents.
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