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| 2. |
- Berglund, E, et al.
(författare)
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Parental reports of spoken language skills in children with Down syndrome.
- 2001
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Ingår i: Journal of Speech, Language and Hearing Research. - 1092-4388 .- 1558-9102. ; 44:1, s. 179-191
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Tidskriftsartikel (refereegranskat)abstract
- Spoken language in children with Down syndrome and in children in a normative group was compared. Growth trends, individual variation, sex differences, and performance on vocabulary, pragmatic, and grammar scales as well as MaxLU (maximum length of utterance) were explored. Subjects were 330 children with Down syndrome (age range: 1-5 years) and 336 children in a normative group (1;4-2; 4 years;months). The Swedish Early Communicative Development inventory-words and sentences (SECDI-w&s) was employed. Performance of children with Down syndrome at ages 3;0 and 4;0 was comparable with that of children in the normative group at ages 1,4 and 1;8 respectively. In comparison with children in the normative group of similar vocabulary size, children with Down syndrome lagged slightly on pragmatic and grammar scales. The early development proceeded in most cases with exponential or logistic growth. This stresses the great potential of early intervention.
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| 3. |
- Darvishi, Mehdi, et al.
(författare)
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InSAR-based Ground Motion Service of Sweden: evaluation and benefit analysis of a nationwide InSAR service
- 2022
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Konferensbidrag (refereegranskat)abstract
- Space-geodetic techniques such as Global Navigation Satellite Systems (GNSS) and Syntenic Aperture Radar interferometry (InSAR) are powerful tools to measure and monitor ground surface motion. InSAR has widely been used for the detection and quantification of slow mass movements over the past three decades mainly at the local and regional scales. The high performance and millimeter-level measurement accuracy of radar satellite to provide a dense deformation map at different spatial and temporal resolutions are the key factors to think of using SAR data and InSAR technique as an efficient tool for geohazards motoring system at the nationwide scale.Sweden has recently joined to the countries having InSAR Ground Motion Service (GMS) at a nationwide scale. The InSAR service of Sweden, which will soon be freely available for users, provides the displacement time-series of measurement points for the entire country. The Swedish GMS project was started last year and is an ongoing collaboration between the Geological Survey of Norway (NGU) and several Swedish organizations (led by the Swedish National Space Agency (SNSA)). The InSAR-based GMS of Sweden has been generated by NGU using Sentinel-1 data (2015–2020) and the Persistent Scatterer Interferometry (PSI) technique. The web-based GMS of Sweden consists of ~1,5 billion time-series measurement points obtained from both descending and ascending satellite orbital modes.Currently, the Swedish GMS is under evaluation and validation phase and the given plan has been designed to assess the quality or validate the GMS products. We plan to conduct the data validation through two main phases: 1) a cross-comparison between InSAR measurement points and ancillary data such as GNSS, Corner Reflectors (CR), Electronic Corner Reflectors (ECR) and leveling data, and 2) assessment of tropospheric and ionospheric effects on InSAR measurement points. Specifically, we will evaluate different approaches and data for the InSAR tropospheric corrections, such as Very-Long-Baseline Interferometry (VLBI), Water Vapour Radiometry (WVR), and GNSS data at the Onsala Space Observatory (OSO).In the first phase of validation, leveling data collected in Gothenburg and Stockholm cities, mainly over the residential areas and public transport infrastructures compared to the corresponding InSAR measurements points (vertically converted) for a five-year period. The initial results present a high correlation between two sets of the vertical displacements. The same procedure will be performed for the Kiruna city where the mining activities resulted in adrastic urban land subsidence. Since the CRs and ECRs have recently been installed in different parts of Sweden, we do not have them as PS points in the current version of the GMS. Therefore, those CR-based measurement points will be used in future accuracy assessments. In the second phase, we investigated the effects of phase delay induced by troposphere on displacement time-series using two approaches, i.e., time-space filtering and using external data (e.g., atmospheric reanalysis data, GNSS, VLBI and Water Vapor Radiometer (WVR)). Recently, European GMS (EGMS) has been released and the Ortho displacement map is now available for users freely. We also evaluated and compared the EGMS-Ortho displacement map with our independent InSAR processing and GNSS data over the Kiruna.As the InSAR-based GMS can be used to monitor and identify the potential risk of geo-related hazards in Sweden, the society will directly benefit from the outcomes of this project. This open access product will help the stakeholders with decision support for prioritization of risk-reducing measures, and identification of the need for further investigations for areas in danger. The service could also assist municipalities and county administrative boards to have an update information regarding urban areas which are more prone to land subsidence and disruption urban infrastructure.
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| 4. |
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| 5. |
- Eriksson, Mårten, et al.
(författare)
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A screening version of the Swedish Communicative Development Inventories designed for use with 18-month-old children.
- 2002
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Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 46:5, s. 948-960
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Tidskriftsartikel (refereegranskat)abstract
- An instrument designed to assess young children's communicative skills at 18 months is described. The instrument consists of a 103-item parental report checklist based on the Swedish version of the Communicative Development Inventories (SECDI). We present descriptive data from a study at the Swedish Community Health Care Centres, including parental reports of 1021 18-month-old children. The response rate was 88%. Performance at the 10th percentile consisted of 8 communicative gestures, 45 comprehended words, and 7 spoken words. The overall results indicate that the instrument is reliable and has validity approximating that of the SECDI. Furthermore, parents of the children with the poorest vocabulary indicated approval of the assessment procedure in interviews especially directed to this group.
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| 6. |
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| 7. |
- Hugosson, Håkan Wilhelm, 1972-, et al.
(författare)
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Stabilization of potential superhard RuO2 phases: A theoretical study
- 2002
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Ingår i: Physical Review B Condensed Matter. - : American Physical Society. - 0163-1829 .- 1095-3795. ; 66:17
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Tidskriftsartikel (refereegranskat)abstract
- First-principles full-potential linear muffin-tin orbital calculations have been used to study RuO2 in the fluorite (CaF2) and rutile structures. An investigation of the effects of metal and nonmetal alloying, oxygen vacancies, and lattice strain on the phase stabilities and electronic structure has been made. From these theoretical results suggestions on how the cubic phase may be stabilized are made. The pressure induced phase transitions between the rutile, CaCl2, Pa3 and fluorite phases and the bulk moduli of several 4d and 5d transition metal dioxides have also been studied.
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| 8. |
- Marsh, John E., et al.
(författare)
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Executive Processes Underpin the Bilingual Advantage on Phonemic Fluency : Evidence From Analyses of Switching and Clustering
- 2019
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Ingår i: Frontiers in Psychology. - : Frontiers Media S.A.. - 1664-1078. ; 10
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Tidskriftsartikel (refereegranskat)abstract
- Bilinguals often show a disadvantage in lexical access on verbal fluency tasks wherein the criteria require the production of words from semantic categories. However, the pattern is more heterogeneous for letter (phonemic) fluency wherein the task is to produce words beginning with a given letter. Here, bilinguals often outperform monolinguals. One explanation for this is that phonemic fluency, as compared with semantic fluency, is more greatly underpinned by executive processes and that bilinguals exhibit better performance on phonemic fluency due to better executive functions. In this study, we re-analyzed phonemic fluency data from the Betula study, scoring outputs according to two measures that purportedly reflect executive processes: clustering and switching. Consistent with the notion that bilinguals have superior executive processes and that these can be used to offset a bilingual disadvantage in verbal fluency, bilinguals (35-65 years at baseline) demonstrated greater switching and clustering throughout the 15-year study period.
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| 9. |
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| 10. |
- Westerlund, M., et al.
(författare)
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A short-term follow-up of children with poor word production at the age of 18 months
- 2004
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Ingår i: Acta Paediatrica. - 0803-5253 .- 1651-2227. ; 93:5, s. 702-706
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Tidskriftsartikel (refereegranskat)abstract
- Aim: (a) To study the stability of poor language development assessed by a new screening instrument based on parents' recognition of words their 18-mo-old children use; (b) to evaluate the predictability of the less-than-eight-words cut-off used by Child Health Centres (CHCs) in Sweden at the present 18-mo check-up--an assessment based on parents' recall of their children's vocabulary. Methods: All failures of the less-than-eight-words criterion, corresponding to about 10% of 1000 children from a community-based study, were followed up within half a year after the first assessment. The follow-up instrument was an extensive, internationally well-known and structured parent questionnaire, standardized for Swedish children. Results: Almost half of the followed-ups performed below the 10th percentile and more than two-thirds were found below the 20th percentile. Thus, after a few months about one-third of the children had caught up to a fairly normal level of performance. Two of the children who had recovered performed above median. More relaxed cut-off criteria were applied ad hoc , reducing the proportion of children with a fast recovery.
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