| 1. |
|
|
| 2. |
- Bivik Stadler, Caroline, 1986-, et al.
(författare)
-
Proactive Construction of an Annotated Imaging Database for Artificial Intelligence Training
- 2021
-
Ingår i: Journal of digital imaging. - : Springer-Verlag New York. - 0897-1889 .- 1618-727X. ; 34, s. 105-115
-
Tidskriftsartikel (refereegranskat)abstract
- Artificial intelligence (AI) holds much promise for enabling highly desired imaging diagnostics improvements. One of the most limiting bottlenecks for the development of useful clinical-grade AI models is the lack of training data. One aspect is the large amount of cases needed and another is the necessity of high-quality ground truth annotation. The aim of the project was to establish and describe the construction of a database with substantial amounts of detail-annotated oncology imaging data from pathology and radiology. A specific objective was to be proactive, that is, to support undefined subsequent AI training across a wide range of tasks, such as detection, quantification, segmentation, and classification, which puts particular focus on the quality and generality of the annotations. The main outcome of this project was the database as such, with a collection of labeled image data from breast, ovary, skin, colon, skeleton, and liver. In addition, this effort also served as an exploration of best practices for further scalability of high-quality image collections, and a main contribution of the study was generic lessons learned regarding how to successfully organize efforts to construct medical imaging databases for AI training, summarized as eight guiding principles covering team, process, and execution aspects.
|
|
| 3. |
- Ebrahimi, Sheida, et al.
(författare)
-
Application of PET/MRI in Gynecologic Malignancies
- 2024
-
Ingår i: Cancers. - : MDPI. - 2072-6694. ; 16:8
-
Forskningsöversikt (refereegranskat)abstract
- Simple Summary This article reviews the value of Positron Emission Tomography/Magnetic Resonance Imaging (PET/MRI) in evaluating female pelvic cancers. It also provides a comparative analysis of PET/MRI with other imaging modalities in the context of female pelvic malignancies and outlines their respective strengths and limitations. The aim of this narrative review is to introduce to clinicians up and coming technology and how it may be valuable to their assessment of female pelvic cancers.Abstract The diagnosis, treatment, and management of gynecologic malignancies benefit from both positron emission tomography/computed tomography (PET/CT) and MRI. PET/CT provides important information on the local extent of disease as well as diffuse metastatic involvement. MRI offers soft tissue delineation and loco-regional disease involvement. The combination of these two technologies is key in diagnosis, treatment planning, and evaluating treatment response in gynecological malignancies. This review aims to assess the performance of PET/MRI in gynecologic cancer patients and outlines the technical challenges and clinical advantages of PET/MR systems when specifically applied to gynecologic malignancies.
|
|
| 4. |
- Eggers, Jeannette, et al.
(författare)
-
Balancing wood production and biodiversity in intensively managed boreal forest
- 2022
-
Ingår i: Scandinavian Journal of Forest Research. - : Informa UK Limited. - 0282-7581 .- 1651-1891.
-
Tidskriftsartikel (refereegranskat)abstract
- Fennoscandian boreal forests are managed intensively for wood production, which has had a negative impact on biodiversity. The harvesting pressure on the forests is likely to increase in the future because wood is seen as an important resource in a bio-based economy. Thus, there is an urgent need to better describe the trade-offs between wood production and biodiversity, and to understand how these trade-offs can be alleviated by adapting forest management. Encompassing a broad range of biodiversity aspects, we studied how forest management can increase biodiversity indicators while maintaining or increasing current harvest levels. We found that there is considerable leeway for forestry to pursue multiple objectives simultaneously in Fennoscandian forest landscapes. We show that it is possible to both increase harvests and structural elements of importance for biodiversity compared to present levels in a forest landscape that is representative of conditions in boreal forests in northern Sweden. Achieving this requires a variation in management strategies at the landscape level, and an adaptation of management practices to explicitly consider and implement multiple objectives in the planning process.
|
|
| 5. |
- Eggers, Jeannette, et al.
(författare)
-
Management Strategies for Wood Fuel Harvesting-Trade-Offs with Biodiversity and Forest Ecosystem Services
- 2020
-
Ingår i: Sustainability. - : MDPI AG. - 2071-1050. ; 12
-
Tidskriftsartikel (refereegranskat)abstract
- Bioenergy is expected to contribute to mitigating climate change. One major source for bioenergy is woody biomass from forests, including logging residues, stumps, and whole trees from young dense stands. However, at increased extraction rates of woody biomass, the forest ecosystem, its biodiversity, and its ability to contribute to fundamental ecosystem services will be affected. We used simulation and optimization techniques to assess the impact of different management strategies on the supply of bioenergy and the trade-offs between wood fuel harvesting, biodiversity, and three other ecosystem services-reindeer husbandry, carbon storage, and recreation. The projections covered 100 years and a forest area of 3 million ha in northern Sweden. We found that the development of novel and cost-effective management systems for biomass outtake from young dense stands may provide options for a significant supply of bioenergy to the emerging bioeconomy, while at the same time securing biodiversity and important ecosystem values in future stand developments. In addition, there is potential to increase the extraction of harvest residues and stumps while simultaneously improving conditions for biodiversity and the amount of carbon stored in forest ecosystems compared to current levels. However, the projected continuing trend of increased forest density (in terms of basal area) has a negative impact on the potential for reindeer husbandry and recreation, which calls for researching new management strategies on landscape levels.
|
|
| 6. |
- Ekström, Sara, et al.
(författare)
-
Micro-teaching i Grundlärarprogrammet : Ett utvecklings- och forskningsprojekt för att stödja lärarstudenter att utveckla yrkesspecifik kunskap i matematik
- 2023
-
Ingår i: Abstracts för Decemberkonferensen. - Trollhättan : Högskolan Väst. ; , s. 1-1
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Vid matematikutbildningen i lärarprogrammen vid Högskolan Väst (HV) genomförs ett utvecklings- och forskningsprojekt (med flera delstudier) för att stödja lärarstudenter att utveckla specifik yrkeskunskap som förbereder dem för undervisningens komplexitet. Kontexten i den här studien är förskoleklassen, den skolform som ska knyta samman förskolans och skolans pedagogik. I en granskning av undervisningen i förskoleklassen (Skolinspektionen, 2015) framkom att endast en fjärdedel av eleverna får en undervisning som motsvarar läroplanens övergripande mål för kunskaper. Det finns därför ett stort behov av att utveckla undervisningen i förskoleklass. Detta gäller särskilt undervisningen i matematik.Teoretisk utgångspunkt i projektet är Banduras teori om självtillit i att undervisa (1997). Forskningen behandlar individens föreställningar om sin kompetens och inte den reella undervisningsförmågan. Det finns dock en tydlig koppling mellan lärares uppfattningar om sin kompetens och vad deras elever presterar. I studien undersöker vi lärarstudenters tilltro till deras egen förmåga att undervisa i matematik och hur den förändras när studenterna får genomföra micro-teaching inför sin VFU (Pekdağ et al., 2020).Studien inleddes med att studenterna fick undervisning i matematik och därefter med handledningsstöd planera en matematiklektion. Lärarutbildare och studentkollegor gav feedback via ett strukturerat observationsprotokoll i ett intilliggande hybridklassrum. Samma undervisningssession genomfördes sedan på VFU där läraren observerade och gav feedback. Datainsamling har skett genom fokusgrupper för att fånga studenternas upplevelse av micro-teaching och om/hur den förändrat deras tillit till att undervisa i matematik. Teoretiskt analysverktyg är fyra aspekter som stöd för utveckling av självtillit (Bandura, 1997).Generellt upplevde studenterna micro-teaching som lärorikt och vill gärna möta liknande upplägg igen. Kontinuerlig återkoppling på ett begränsat innehåll upplevdes positivt. Studenterna tyckte tekniken med micro-teaching var en bra lärsituation, som blandade teori och praktik samt gav dem nya perspektiv på deras egen undervisning, en “levande kunskap”.
|
|
| 7. |
- Hammarsten, Maria, et al.
(författare)
-
Rum för meningsfull fritid?
- 2022
-
Ingår i: TTELA – före detta Trollhättans Tidning och Elfsborgs Läns Allehanda..
-
Tidskriftsartikel (populärvet., debatt m.m.)
|
|
| 8. |
- Hammarsten, Maria, et al.
(författare)
-
Rum för meningsfull fritid?
- 2022
-
Ingår i: TTELA. - 1652-9391. ; :10 oktober
-
Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Ingress: Insändare. Fritidshemmets miljöer, så väl fysiska, som sociala och psykosociala, har betydelse för barns utveckling och lärande, menar debattörer.
|
|
| 9. |
- Lindvall, Martin, et al.
(författare)
-
TissueWand, a rapid histopathology annotation tool
- 2020
-
Ingår i: Journal of Pathology Informatics. - : Medknow Publications. - 2229-5089 .- 2153-3539. ; 11:27
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Recent advancements in machine learning (ML) bring great possibilities for the development of tools to assist with diagnostic tasks within histopathology. However, these approaches typically require a large amount of ground truth training data in the form of image annotations made by human experts. As such annotation work is a very time-consuming task, there is a great need for tools that can assist in this process, saving time while not sacrificing annotation quality. Methods: In an iterative design process, we developed TissueWand – an interactive tool designed for efficient annotation of gigapixel-sized histopathological images, not being constrained to a predefined annotation task. Results: Several findings regarding appropriate interaction concepts were made, where a key design component was semi-automation based on rapid interaction feedback in a local region. In a user study, the resulting tool was shown to cause substantial speed-up compared to manual work while maintaining quality. Conclusions: The TissueWand tool shows promise to replace manual methods for early stages of dataset curation where no task-specific ML model yet exists to aid the effort.
|
|
| 10. |
|
|
