| 1. |
- Momeni, Naghi, et al.
(författare)
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High complement factor I activity in the plasma of children with autism spectrum disorders
- 2012
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Ingår i: Autism Research and Treatment. - : Hindawi Publishing Corporation. - 2090-1925 .- 2090-1933.
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Tidskriftsartikel (refereegranskat)abstract
- Autism spectrum disorders (ASDs) are neurodevelopmental and behavioural syndromes affecting social orientation, behaviour, and communication that can be classified as developmental disorders. ASD is also associated with immune system abnormality. Immune system abnormalities may be caused partly by complement system factor I deficiency. Complement factor I is a serine protease present in human plasma that is involved in the degradation of complement protein C3b, which is a major opsonin of the complement system. Deficiency in factor I activity is associated with an increased incidence of infections in humans. In this paper, we show that the mean level of factor I activity in the ASD group is significantly higher than in the control group of typically developed and healthy children, suggesting that high activity of complement factor I might have an impact on the development of ASD.
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| 2. |
- Persson, Bengt, et al.
(författare)
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Screening for Infants With Developmental Deficits and/or Autism A Swedish Pilot Study.
- 2006
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Ingår i: Journal of Pediatric Nursing: Nursing Care of Children and Families. - : Elsevier BV. - 1532-8449. ; 21:4, s. 24-313
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this study was to develop an instrument (SEEK) for the early detection of developmental deficits and/or autistic spectrum disorders among children by the age of 8 months at eight child health care centers in southern Sweden. Health visitors, trained by the research team, screened 312 infants. SEEK captured 5 infants with several points. Twenty-one percent of the infants obtained at least one SEEK point. At the 18-month follow-up, 5 children still showed more obvious signs of developmental problems. The health visitors found SEEK to be very satisfactory and easy and quick to use and its items and questions to be easy to administer. The results have indicated a new systematic methodology to examine infants, which is to be further developed.
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| 3. |
- Sivberg, Bengt, et al.
(författare)
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Screening of infants at eight months for atypical development in primary health care in southern Sweden
- 2016
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Ingår i: Early Child Development and Care. - : Informa UK Limited. - 0300-4430 .- 1476-8275. ; 186:2, s. 287-306
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Tidskriftsartikel (refereegranskat)abstract
- Screening studies of a population in primary health care are sparsely reported. The aim was to describe observed atypical behaviours that may be associated with autism spectrum conditions, in a population (n = 4329) of infants at eight months. Observations were performed by paediatric nurses. An observational instrument, named SEEK developed for child health care, was used focusing on social interaction, communication, motor skills, and an interview with parents. The analysis contains descriptive statistics, correlation analysis and a logistic regression model (cut-point 8 SEEK points). Infants scoring 8 points or more were observed a second time by psychologists and judged to be in the risk zone for atypical development. Delayed reaction to stimuli and preverbal language development were significant atypical behaviours together with deficits in communication skills, the latter more often among boys than girls. However, 7% scored 4 points or more indicating minor developmental problems. Catching early signs are crucial for both proactive care and intervention. © 2015 Taylor & Francis.
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| 4. |
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| 5. |
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| 6. |
- Aronsson, Per, et al.
(författare)
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An operational decision support tool for stump harvest
- 2011
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- A multi-criteria decision support tool was developed to optimise stump harvesting for energy in Sweden. The decision tool takes account of multiple, sometimes conflicting, criteria relating to stump harvest; energy and climate, economics, biodiversity, and soil and water. Data on harvested stems are used as primary input data in the tool. Such data are routinely collected in harvester computers. The tool effectively deals with mixed sets of data; quantitative harvest data are re-calculated to metric (e.g. stump biomass), and qualitative data (e.g. biodiversity implications) are incorporated. A digital terrain map derived from air-borne laser scanning provides basic data for estimating soil wetness, while digital maps of water courses, key habitats and protected areas, or other sensitive habitats, are used to identify potentially and practically harvestable stumps.In four sub-models, an index from 0 to 10 is calculated for each stump, with 0 representing ‘Not at all suitable’ and 10 ‘Highly suitable for extraction’. Through this, a stump of high value for wood-living species is assigned a low index in the biodiversity sub-model and a large, easily accessible stump is assigned a high index in the economic sub-model. When calculating the net index, the sub-indices can be weighted according to the preferences of the end-user.An energy and climate sub-model incorporates greenhouse gas (GHG) emissions from forest operations and the effect of advancing GHG emissions when stump biomass is incinerated instead of being left to decompose. In the economic sub-model the potential monetary return from each stump is calculated based on estimated revenue from harvested stump biomass and the costs of stump harvesting and forwarding operations (based on cost functions and GIS calculations of transport distances).The biodiversity sub-model considers four types of wood-dependent organisms (lichens, mosses, insects and fungi) in terms of their habitat requirements, vulnerability, sun exposure preferences, locality, etc. A panel of external experts has drawn up a grading scale of stump values for the different taxonomic groups. The proximity to key habitats and exposure to sunlight are derived from a spatial model.Soil and water issues are handled within a sub-model estimating the consequences for long-term soil fertility (nutrient cycling and soil compaction) and water (leaching of plant nutrients and mercury, and particle transport due to soil damage by heavy machinery).The tool offers the end-user possibilities to prioritise and plan for cost-effective stump harvesting, while minimising negative environmental impacts.
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| 7. |
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| 8. |
- Benderix, Ylva, et al.
(författare)
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Parents' experience of having a child with autism and learning disabilities living in a group home: A case study.
- 2006
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Ingår i: Autism. - : SAGE Publications. - 1362-3613 .- 1461-7005. ; 10:6, s. 629-641
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Tidskriftsartikel (refereegranskat)abstract
- Some children with autism and learning disabilities also have aberrant behaviours that are difficult to regulate and stressful for both the child and family members. This case study concerns experiences of 10 parents from five families before and 2 years after entrusting their 10- to 11-year-old child with autism to a group home. Hermeneutic phenomenological analysis of narrative interviews with the parents before the child’s moving showed them experiencing grief and sorrow, total exhaustion because of inability to regulate their child’s behaviours, social isolation, and negative effects on the child’s siblings, but experiencing themselves as more sympathetic than previously towards other people with problems. Two years later they experienced relief for the family due to the group home arrangement and the child’s improvement, but with an ethical dilemma which made them feel guilty, despite increased hope for the future. Some also felt unhappy with the staff situation at the group home.
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| 9. |
- Campana, Pietro Elia, 1984-, et al.
(författare)
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Evaluation of the first agrivoltaic system in Sweden
- 2023
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Photovoltaic (PV) systems in Sweden have primarily been seen as an energy efficiency measure to reduce the amount of purchased electricity for buildings, both residential and commercial. Only recently utility-scale solar systems have begun to increase their share of the solar market to support national energy and emissions targets. Due to the economies of scale, conventional ground-mounted PV (CGMPV) installations represent the best solution for producing electricity at the lowest specific initial investment costs. This relatively new solar market segment, with large-scale ground-mounted solar farms on agricultural land, has faced several challenges with the permitting process. Agricultural land that is suitable for cultivation is of "national importance" according to the Swedish Environmental Code. Cultivable agricultural land may be exploited for other purposes on a permanent basis only if it is necessary to satisfy essential societal interests and there is no other possible land to use within the area in question. Traditionally, ground-mounted solar farms have increased competition for land resources for food production and drawn criticism in the so-called "food-versus-fuel (electricity)" debate over whether agricultural land should be used for electricity generation or food production. Agrivoltaic (APV) systems represent an intelligent solution to avoid land use competition by combining arable farming and electricity production on the same agricultural land. The main objective of this project was to study how APV systems perform from an energy, agricultural and economic perspective compared to CGMPV systems and agriculture production. The project aimed to highlight advantages and disadvantages of APV systems at northern latitudes with an energy-food-water perspective. The aim was pursued by establishing an APV test site, the first APV system in Sweden, monitoring its performance both from an energy and agricultural point of view, and developing new techno-economic models. Data from the APV test site were used to better understand how APV systems at northern latitudes affect: 1) the efficiency of the solar modules; 2) crop productivity, and 3) the financial return for ground-based solar PV systems. The first agrivoltaic system in Sweden has been built on a permanent ley grass field, at Kärrbo Prästgård, Västerås, and research activities have been carried out on the ley grass during 2021 and 2022. As in previous research studies in other countries, we defined three sub-fields: 1) a sub-field is covered only by the ley grass (reference area), 2) a sub-field is a CGMPV system 11.8 kWp solar PV system with two rows of solar modules with a 30° tilt and 3) the last subfield is a 22.8 kWp APV system with three rows of vertically mounted solar modules, with ley grass between the modules. This field set-up allowed for comparisons between practices (agriculture and electricity generation) and technologies (CGMPV systems versus APV systems). The calculated specific electricity production during a typical meteorological year for the APV system and the CGMPV system was 1,067 kWh/kWp/year and 1,116 kWh/kWp/year, respectively. Nevertheless, the APV system tends to have higher efficiency than the CGMPV systems due to the solar irradiation patterns on the solar cell surfaces and wind cooling of the PV modules. The main results of the project in terms of shadow effects on the ley grass showed that the APV system did not significantly affect the productivity of the forage grass in 2021-2022. There was no statistically significant difference between the yield of the samples taken in the APV system and the reference area. Even so, the yield per hectare is reduced by approximatively 10%, when the distance between the vertically mounted solar modules is 10 meters, due to the area under the solar modules that cannot be mechanically harvested. The measurements performed at the test site allowed us to validate the earlier developed model for both electricity production and the effects of shading on crop production. Having a model to assess crop yields under APV systems is of utmost importance to be able to pre-assess the system's effects on food production, which is one of the main goals of APV system regulations worldwide. From an economic perspective, APV systems cannot compete with CGMPV systems due to lower electricity production per hectare, lower density of the solar modules per hectare, and higher investment costs per hectare. Nevertheless, APV systems can be the solution to overcome the legal obstacles that prohibit or hinder the use of agricultural land for electricity generation with PV systems.
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| 10. |
- Coquand, Thierry, 1961, et al.
(författare)
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A simple type-theoretic language: Mini-TT
- 2009
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Ingår i: From Semantics to Computer Science : Essays in Honour of Gilles Kahn. - : Cambridge University Press. - 9780521518253 ; , s. 139-164
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- This paper presents a formal description of a small functional language with dependent types. The language contains data types, mutual recursive/ inductive definitions and a universe of small types. The syntax, semantics and type system is specified in such a way that the implementation of a parser, interpreter and type checker is straightforward. The main difficulty is to design the conversion algorithm in such a way that it works for open expressions. The paper ends with a complete implementation in Haskell (around 400 lines of code).
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