| 1. |
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| 2. |
- Malakuti, Iman, et al.
(författare)
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Bilateral TMJ Ankylosis: Total Joint Reconstruction in a Patient With Zero Mouth Opening : A Case Report
- 2032
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Ingår i: Craniomaxillofacial research & Innovation. ; 8:1-6
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Tidskriftsartikel (refereegranskat)abstract
- Present a case of a young patient with bilateral bony ankylosis of the TMJ with zero mouth opening treated with TMJ prosthesis.MethodsThe ankylosis was studied in detail with computed tomography (CT) and we used virtual surgical planning in the pre-operative phase to provide splints and cutting guides. The patient was treated with bilateral custom-made alloplastic TMJ prosthesis.ResultsOptimal functional improvement at the 5.5 year follow up after total joint reconstruction without any adverse effects. Mouth opening was 35 mm and the patient was free from pain. CT-images showed no signs of pathology or increased remodeling and bone formation.ConclusionAnkylosis of the TMJ in young and adult population presents unique challenges given the need to account for growth of the mandible and anatomical variations. This report supports the use of total joint reconstruction for end-stage TMJ disease.
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| 3. |
- Engleryd, Anna, et al.
(författare)
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Air pollution and Climate Change
- 2029
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In order to evaluate the role of air pollution and air pollution control for climate policies, SwedishEnvironmental Protection Agency invited leading experts and scientists, senior administrators andnegotiators, international organisations and industry to an international workshop in Gothenburg, Sweden,19-21 October 2009.
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| 4. |
- Glatz, Terese, 1983-, et al.
(författare)
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A Systematic Review of Parental Self-efficacy Among Parents of School-Age Children and Adolescents
- 2029
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Ingår i: Adolescent Research Review. - : Springer. - 2363-8346 .- 2363-8354. ; 9:1, s. 75-91
-
Forskningsöversikt (refereegranskat)abstract
- What function does parental self-efficacy have for parenting behaviors and children's adjustment, and what explains individual variations in parents' self-efficacy? Parental self-efficacy involves parents' beliefs about their influence on their children and this systematic review presents results from 35 empirical studies published between 2003 and 2022 among parents of school-aged children and adolescents. First, the studies in this review show a bi-directional association between parental self-efficacy and positive parenting, and some empirical evidence that parental self-efficacy influences children indirectly, via parenting. The few longitudinal studies examining associations between parental self-efficacy and child behaviors suggest that self-efficacy might emerge as a reaction to children's behaviors. Second, many child, parent, and sociocultural factors were shown to predict parental self-efficacy (e.g., child gender and age, parents' psychological well-being, and socio-economic status), and results suggest that these associations are similar across multiple countries and age groups. Finally, studies reporting on parental self-efficacy at different time points or a correlation between self-efficacy and the child's age suggested that parental self-efficacy decreases over the school-age and adolescent period. This review shows the complex role of parental self-efficacy in associations with parent and child factors, and it also highlight questions to address for future research.
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| 5. |
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| 6. |
- Adami, Rebecca, 1982-
(författare)
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Childism, Intersectionality and the Rights of the Child : The myth of a happy childhood
- 2025
-
Bok (refereegranskat)abstract
- This book is the first to comprehensively develop the concept of childism to understand, study and analyse age-based discrimination against children.It presents a critical theory to help comprehend intersecting prejudice against children and to examine the weak implementation of the UN Convention on the Rights of the Child (CRC), and in what ways violations against children can be analysed through the intersections of racist, sexist and ableist discrimination. The book further offers scholars a new perspective when studying structural forms of discrimination and oppression against children and provides professionals with a new vocabulary on prejudice targeting children when assessing theory, policy and praxis on ‘child-friendly’ and ‘child-centred’ initiatives that overlook the need to protect children against discrimination.This book will be of key interest to scholars, students and practitioners of human rights, child and youth studies, education, prejudice studies, the United Nations and child law, and more broadly to sociology, social policy, psychology, and social work.
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| 7. |
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| 8. |
- Boström, Magnus, 1981-
(författare)
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The Multifaceted Seafarer: An Explorative Discourse Analysis of Seafarers’ Portrayals in Swedish Maritime Magazines
- 2025
-
Ingår i: Ocean and Society. - : Cogitatio Press. ; 2
-
Tidskriftsartikel (refereegranskat)abstract
- Seafaring is a highly male‐dominated occupation. Within the industry, there is an ambition to increase the proportion of women working in maritime professions. In this endeavor, it is relevant to examine how seafarers are portrayed in various contexts. This study aimed to explore the image of seafarers as presented in Swedish maritime magazines: How are seafarers described, and can these descriptions be seen as performative in shaping a professional identity? To meet this aim, a discourse analysis was performed, based on 20 texts from two maritime magazines, representing both rating and officer seafarers. Overall, six subject positions inhabited by seafarers were identified, with several overlapping characteristics. For example, traits of the traditional seafarer were also found in the masculine seafarer and the flexible seafarer. Furthermore, it is argued that several of the subject positions are difficult to combine with what is referred to as the gender‐equal seafarer, mainly due to challenges in balancing family life with extended periods at sea. The study shows that today’s seafarers, according to how they are depicted in Swedish maritime magazines, have considerable agency in shaping their own professional identity without being forced to conform to a hegemonic masculinity. Finally, it is suggested that the term “seafarer” be used instead of “seaman” in both print and everyday conversations, for increased inclusiveness and representation.
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| 9. |
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| 10. |
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| 11. |
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| 12. |
- Cronqvist, Marie, 1973-, et al.
(författare)
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Afterword : Towards a Tactical Turn?
- 2025
-
Ingår i: Media history in the long twentieth century. - New York & London : Routledge. - 9781032618272 - 9781032618289 - 9781032618326 ; , s. 259-261
-
Bokkapitel (refereegranskat)abstract
- Integrating media studies with history, Media Tactics in the Long Twentieth Century explores the dynamic relationship between tactics and strategies in recent history.Drawing on examples from a range of different countries and world regions, and looking at the infrastructures, entanglements, and institutions involved, the volume makes a strong case for media tactics as a new field of scholarly inquiry and for the importance of a historically informed approach. In contrast to strategic communication approaches, this media historical intervention contributes to new knowledge about the practical implementation of strategies. First foregrounding tactics as an object of study, the volume then counters the presentism of contemporary studies by adding a necessary historical perspective. Moreover, the book theoretically disentangles the concept of strategy – from an abstract contemporary buzzword to concrete, hands-on actions – which in turn reveals the complexity of using media strategies and media tactics in reality.This volume will interest scholars and students working in the field of media and communication in general, and in the subfields of strategic communication, public relations, media history, and propaganda studies.
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| 13. |
- Cronqvist, Marie, 1973-, et al.
(författare)
-
Introduction : Towards a History of Media Tactics
- 2025. - 1
-
Ingår i: Media tactics in the long twentieth century. - New York & London : Routledge. - 9781032618272 - 9781032618289 - 9781032618326 ; , s. 1-15
-
Bokkapitel (refereegranskat)abstract
- Integrating media studies with history, Media Tactics in the Long Twentieth Century explores the dynamic relationship between tactics and strategies in recent history.Drawing on examples from a range of different countries and world regions, and looking at the infrastructures, entanglements, and institutions involved, the volume makes a strong case for media tactics as a new field of scholarly inquiry and for the importance of a historically informed approach. In contrast to strategic communication approaches, this media historical intervention contributes to new knowledge about the practical implementation of strategies. First foregrounding tactics as an object of study, the volume then counters the presentism of contemporary studies by adding a necessary historical perspective. Moreover, the book theoretically disentangles the concept of strategy – from an abstract contemporary buzzword to concrete, hands-on actions – which in turn reveals the complexity of using media strategies and media tactics in reality.This volume will interest scholars and students working in the field of media and communication in general, and in the subfields of strategic communication, public relations, media history, and propaganda studies.
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| 14. |
- De Ridder, Reglindis, Associate Professor
(författare)
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AVT and agency : Revoicing to give a voice to minoritized language communities
- 2025
-
Ingår i: Journal of Audiovisual Translation. - 2617-9148.
-
Tidskriftsartikel (refereegranskat)abstract
- At the 10th Media for All conference, the meagre representation of minoritized languages (including sign language) in audiovisual media on streaming platforms was tackled. In this way, the very ideal of media for all was challenged. Global streaming platforms tend to adopt a ‘one size fits all’ approach in limiting their language settings to a minimum. While the users of minoritized languages often are proficient in the dominant language of their country, it is absolutely crucial that content is available in their smaller — and often endangered — languages as well. Some streaming platforms of local public service broadcasters try to accommodate this need. Still, the questions remain: to what extent do not only minoritized languages users, but also the speakers of the majority languages encounter these minoritized languages in audiovisual content, how linguistically diverse and inclusive is this content, but also: what role can audiovisual translation play here? In this article, the importance of audiovisual translation in and out of minoritized languages, with a special focus on revoicing, is discussed. The children’s content broadcast by Swedish public service broadcaster in the national minority languages and sign language is used as a case study.
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| 15. |
- De Ridder, Reglindis, Associate Professor
(författare)
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Minority/minoritized language audiovisual translation for younger audiences
- 2025
-
Ingår i: The Routledge handbook of translation and children’s literature and media. - London : Routledge.
-
Bokkapitel (refereegranskat)abstract
- Revoicing has historically been used to translate children’s audiovisual content. Of the various audiovisual translation (AVT) modes, lip-sync dubbing completely replaces the original dialogue track with a recording of the translated dialogue lines in the target language. Off-screen narration is also used to guide children through a programme, usually in the form of voice-over that does not include traces of the source language. In addition to animated children’s programmes, live-action content targeting older children that used to be subtitled in so-called ‘subtitling countries’ is likewise often dubbed nowadays. Other than dubbing, different AVT modes can be combined within the same programme to make children’s content accessible to audiences with special needs or specific linguistic preferences. Furthermore, besides professional AVT, efforts by laypersons and language activists to provide content in minority languages are also important. In this chapter, AVT in and out of minority/minoritized languages is discussed, including aspects such as the role of language planning and the language acquisition impact on younger audiences.
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| 16. |
- Gao, Guangbin, et al.
(författare)
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Understanding filamentous cyanobacteria and their adaptive niches in Lake Honghu, a shallow eutrophic lake
- 2025
-
Ingår i: Journal of Environmental Sciences (China). - 1001-0742. ; 152, s. 219-234
-
Tidskriftsartikel (refereegranskat)abstract
- Freshwater lakes globally are witnessing an escalation in the frequency and intensity of cyanobacterial harmful blooms. However, underlying factors influencing the succession or coexistence of cyanobacteria, especially filamentous ones, remain poorly understood. Lake Honghu, a Ramsar Wetland of International Importance with degrading aquatic ecological quality, served as a case study to elucidate the intricate relationship between environmental changes and cyanobacterial dynamics. Our analysis revealed a significant increase in the dominance of filamentous cyanobacteria, marked by high spatiotemporal variability in community structure. This dominance of filamentous diazotrophic cyanobacteria is attributed to a decrease in the ratio of dissolved inorganic nitrogen to total phosphorus and their capacity to utilize organic phosphorus in phosphorus-deficient conditions. Species-specific density variations were linked to diverse environmental factors, with total nitrogen or total phosphorus concentration remaining as a crucial factor influencing dominant cyanobacterial density fluctuations. The dominance of low-temperature-tolerant Aphanizomenon and Pseudanabaena was evident in spring and winter, whereas Dolichospermum and Cylindrospermopsis, which prefer higher temperatures, thrived in summer and autumn. Additionally, non-algal turbidity and heterogeneity can potentially alter the competitive outcome among filamentous cyanobacteria or foster coexistence under conditions of elevated temperatures and nutrient limitation. This study predicts that filamentous cyanobacteria may spread and persist in lakes spanning a wide trophic range. Current findings enhance our comprehension of the dynamic responses exhibited by filamentous bloom-forming cyanobacteria in the face of environmental changes within shallow eutrophic lakes and provide valuable insights for lake managers involved in the remediation of degraded shallow lakes.
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| 17. |
- Gordon, Michelle
(författare)
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Persecution, Oppression and Subjection
- 2025
-
Ingår i: <em>A Cultural History of Violence in the Age of Empire</em>. - London : Bloomsbury Academic.
-
Bokkapitel (refereegranskat)
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| 18. |
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| 19. |
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| 20. |
- Lindberg, Ylva
(författare)
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Feminist Comics in Circulation : Pénélope Bagieu's Inscription on the Swedish Comics Landscape
- 2025
-
Ingår i: Comics, Activism, Feminisms. - London : Routledge. - 9781032545509 - 9781032545523 - 9781003425397 ; , s. 126-140
-
Bokkapitel (refereegranskat)abstract
- As feminist comics circulate globally, understanding their transfer from local to international contexts is crucial. Original comics’ local feminism risks erasure in the translation process, favouring elements suiting the target culture. This study examines how Pénélope Bagieu’s comics work is reinscribed in the Swedish comics landscape. Selection and reception instances are analysed drawing on translation and cultural transfer studies. The study traces the selection instance by publishing houses and the reception of Bagieu and French feminist comics in Francophone and Swedish comics scenes. Results show increased recognition of French and Francophone female and feminist comics artists in Sweden after 2010. Incoming female comics artists often get niched in children’s literature, despite potential within the feminist comics landscape. Sweden shows unawareness of the gap between locally promoted feminist comics and the reception of imported equivalents. Selection and reception orchestration crucially impact how a work is received in the target culture. Awareness of incoming feminist comics artists’ works and their connections to works in the target culture can offer nuanced perspectives on cross-border development in the field.
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| 21. |
- Lundstedt, Lydia
(författare)
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Exhaustion
- 2025
-
Ingår i: Elgar Encyclopedia of Intellectual Property Law. - Cheltenham : Edward Elgar Publishing. - 9781800886926 - 9781800886933
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- This entry describes the theoretical and historical underpinnings of the principle of exhaustion in intellectual property law as well as its internationel legal framework.
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| 22. |
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| 23. |
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| 24. |
- Sarmad, Shokat, et al.
(författare)
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Innovative CO2 capture technologies: Exploring the potential of porous liquids containing deep eutectic solvents and hypercrosslinked polymers
- 2025
-
Ingår i: Separation and Purification Technology. - : Elsevier. - 1383-5866 .- 1873-3794. ; 352
-
Tidskriftsartikel (refereegranskat)abstract
- The current study presented a porous liquid (PL) prepared from propylene glycol-based deep eutectic solvent (DES) and hyper-crosslinked polymers (HCP) that are liquids over wide temperature ranges, including ambient temperature. It was shown that the solvent molecules are too large to penetrate the pores of HCP, so the PL is maintained as a suspension with permanent free volume for several months and can absorb large amounts of gases. This study marks the pioneering use of DESs as the liquid medium, replacing ionic liquids due to their closely matched properties. The structural features of both DES and HCP are retained; the increase in CO2 absorption capacity compared to pure DES is due to the presence of a porous solid and is proportional to the amount of solid. The absorbed CO2 amount rises from 1.0105 mmol·g−1 in pure DES to 1.3232, 1.6027, and 1.2168 mmol·g−1 in PL-1, PL-2, and PL-3, respectively. Thermodynamic analysis revealed that the enthalpy of gas absorption allows straightforward regeneration of the PLs in the studied cases. The investigated PLs show great potential as gas absorbents, with the incorporation of just 0.5 wt% of porous polymer material leading to an impressive increase in solvent absorption capacity, up to 59 %.
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| 25. |
- Sarmad, Shokat, et al.
(författare)
-
Innovative CO2 capture technologies: Exploring the potential of porous liquids containing deep eutectic solvents and hypercrosslinked polymers
- 2025
-
Ingår i: Separation and Purification Technology. - : Elsevier B.V.. - 1383-5866 .- 1873-3794. ; 352
-
Tidskriftsartikel (refereegranskat)abstract
- The current study presented a porous liquid (PL) prepared from propylene glycol-based deep eutectic solvent (DES) and hyper-crosslinked polymers (HCP) that are liquids over wide temperature ranges, including ambient temperature. It was shown that the solvent molecules are too large to penetrate the pores of HCP, so the PL is maintained as a suspension with permanent free volume for several months and can absorb large amounts of gases. This study marks the pioneering use of DESs as the liquid medium, replacing ionic liquids due to their closely matched properties. The structural features of both DES and HCP are retained; the increase in CO2 absorption capacity compared to pure DES is due to the presence of a porous solid and is proportional to the amount of solid. The absorbed CO2 amount rises from 1.0105 mmol·g−1 in pure DES to 1.3232, 1.6027, and 1.2168 mmol·g−1 in PL-1, PL-2, and PL-3, respectively. Thermodynamic analysis revealed that the enthalpy of gas absorption allows straightforward regeneration of the PLs in the studied cases. The investigated PLs show great potential as gas absorbents, with the incorporation of just 0.5 wt% of porous polymer material leading to an impressive increase in solvent absorption capacity, up to 59 %.
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| 26. |
- Sun, Mingyue, et al.
(författare)
-
Out-of-order execution enabled deep reinforcement learning for dynamic additive manufacturing scheduling
- 2025
-
Ingår i: Robotics and Computer-Integrated Manufacturing. - : Elsevier Ltd. - 0736-5845 .- 1879-2537. ; 91
-
Tidskriftsartikel (refereegranskat)abstract
- Additive Manufacturing (AM) has revolutionized the production landscape by enabling on-demand customized manufacturing. However, the efficient management of dynamic AM orders poses significant challenges for production planning and scheduling. This paper addresses the dynamic scheduling problem considering batch processing, random order arrival and machine eligibility constraints, aiming to minimize total tardiness in a parallel non-identical AM machine environment. To tackle this problem, we propose the out-of-order enabled dueling deep Q network (O3-DDQN) approach. In the proposed approach, the problem is formulated as a Markov decision process (MDP). Three-dimensional features, encompassing dynamic orders, AM machines, and delays, are extracted using a ‘look around’ method to represent the production status at a rescheduling point. Additionally, five novel composite scheduling rules based on the out-of-order principle are introduced for selection when an AM machine completes processing or a new order arrives. Moreover, we design a reward function that is strongly correlated with the objective to evaluate the agent's chosen action. Experimental results demonstrate the superiority of the O3-DDQN approach over single scheduling rules, randomly selected rules, and the classic DQN method. The average improvement rate of performance reaches 13.09% compared to composite scheduling rules and random rules. Additionally, the O3-DDQN outperforms the classic DQN agent with a 6.54% improvement rate. The O3-DDQN algorithm improves scheduling in dynamic AM environments, enhancing productivity and on-time delivery. This research contributes to advancing AM production and offers insights into efficient resource allocation.
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| 27. |
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| 28. |
- Wang, Chao, et al.
(författare)
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Characterization and sources of childhood PAEs exposure from residential airborne dust in China cities
- 2025
-
Ingår i: Journal of Environmental Sciences(China). - : Elsevier. - 1001-0742 .- 1878-7320. ; 152, s. 1-13
-
Tidskriftsartikel (refereegranskat)abstract
- To explore the multicenter characteristics of endocrine-like phthalate esters (PAEs) in household dust and propose effective control strategies for global indoor public health. An on-site observational investigation was conducted in nine Chinese cities from 2018 to 2019. A total of 246 household dust samples were collected and analyzed for ten PAE congeners using Gas Chromatography-Mass Spectrometry (GC-MS). Questionnaires were used to gather information on building conditions, indoor behaviors, and ventilation habits. In residential dust from the nine cities, the total concentrations of the ten PAE congeners (∑PAEs) ranged from 0.921 to 29097.297 µg/g. Dicyclohexyl phthalate (DCHP) and di (2-ethylhexyl) phthalate (DEHP) were the dominant congeners in ∑PAEs. Childhood exposure to PAEs through dust ingestion was four orders of magnitude higher than through inhalation, with a carcinogenic risk of 5.47 × 10−6 for DEHP exposure in household dust. Higher ∑PAEs concentrations were associated with higher temperature, double glazing, wall paint usage, television and computer use, and indoor plant growth. This multicenter on-site investigation confirmed PAE pollution characteristics and uncovered the inacceptable risk of daily DEHP exposure in household dust under real living conditions. Effective mitigation measures based on household-related information, residential characteristics, decoration materials, and lifestyle should be taken to build a healthy household environment.
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| 29. |
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| 30. |
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| 31. |
- Yue, Xiaoqi, et al.
(författare)
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Unveiling nano-scale chemical inhomogeneity in surface oxide films formed on V- and N-containing martensite stainless steel by synchrotron X-ray photoelectron emission spectroscopy/microscopy and microscopic X-ray absorption spectroscopy
- 2025
-
Ingår i: Journal of Materials Science & Technology. - : Chinese Society of Metals. - 1005-0302. ; 205, s. 191-203
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Tidskriftsartikel (refereegranskat)abstract
- Nano-scale chemical inhomogeneity in surface oxide films formed on a V- and N-containing martensite stainless steel and tempering heating induced changes are investigated by a combination of synchrotron- based hard X-ray Photoelectron emission spectroscopy (HAXPES) and microscopy (HAXPEEM) as well as microscopic X-ray absorption spectroscopy (μ-XAS) techniques. The results reveal the inhomogeneity in the oxide films on the micron-sized Cr2N- and VN-type particles, while the inhomogeneity on the martensite matrix phase exists due to localised formation of nano-sized tempering nitride particles at 600 °C. The oxide film formed on Cr2N-type particles is rich in Cr2O3 compared with that on the martensite matrix and VN-type particles. With the increase of tempering temperature, Cr2O3 formation is faster for the oxidation of Cr in the martensite matrix than the oxidation of Cr nitride-rich particles.
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| 32. |
- Zhou, Zhenning, et al.
(författare)
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Learning accurate and efficient three-finger grasp generation in clutters with an auto-annotated large-scale dataset
- 2025
-
Ingår i: Robotics and Computer-Integrated Manufacturing. - : Elsevier BV. - 0736-5845 .- 1879-2537. ; 91
-
Tidskriftsartikel (refereegranskat)abstract
- With the development of intelligent manufacturing and robotic technologies, the capability of grasping unknown objects in unstructured environments is becoming more prominent for robots with extensive applications. However, current robotic three-finger grasping studies only focus on grasp generation for single objects or scattered scenes, and suffer from high time expenditure to label grasp ground truth, making them incapable of predicting grasp poses for cluttered objects or generating large-scale datasets. To address such limitations, we first introduce a novel three-finger grasp representation with fewer prediction dimensions, which balances the training difficulty and representation accuracy to obtain efficient grasp performance. Based on this representation, we develop an auto-annotation pipeline and contribute a large-scale three-finger grasp dataset (TF-Grasp Dataset). Our dataset contains 222,720 RGB-D images with over 2 billion grasp annotations in cluttered scenes. In addition, we also propose a three-finger grasp pose detection network (TF-GPD), which detects globally while fine-tuning locally to predict high-quality collision-free grasps from a single-view point cloud. In sum, our work addresses the issue of high-quality collision-free three-finger grasp generation in cluttered scenes based on the proposed pipeline. Extensive comparative experiments show that our proposed methodology outperforms previous methods and improves the grasp quality and efficiency in clutters. The superior results in real-world robot grasping experiments not only prove the reliability of our grasp model but also pave the way for practical applications of three-finger grasping. Our dataset and source code will be released.
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| 33. |
-
3D digital modelling in visual arts education
- 2024
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- The following 3D Digital Modelling in Visual Arts Education forms part of the Tilde seriesand is based on collaboration in a project involving Aalborg University and College University Copenhagen (Denmark), the University of Gothenburg and Umeå University (Sweden).The project’s aim was to explore the learning potential held by 3D sculpting for art teachersby identifying new image-making processes in modelling and sculpting. Another aim wasto integrate the project’s outcome in didactics and teaching activities for teacher educatorsin visual arts connected to the subject area.The project was fnanced by EDDA Norden during 2021 and several seminars werearranged to present research in the subject area visual arts, 3D modelling, and use of technology. The results may be of particular interest to a wider audience in the research felds ofvisual arts education, multimodal learning designs, and teacher education. The publicationis based on presentations made at Aalborg University in Copenhagen during the autumn of2021 and at a symposium called 3D-sculpting: A Nordic Higher Education CollaborationProject at the NERA conference held in Oslo in the spring of 2023.
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| 34. |
- A. B. Marçal, L., et al.
(författare)
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Spatially resolved structural and chemical properties of the white layer in machined Inconel 718 super alloy
- 2024
-
Ingår i: Materials and Design. - 0264-1275. ; 239
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Tidskriftsartikel (refereegranskat)abstract
- Inconel 718 is one type of nickel-based alloy used for a large range of applications, including gas turbines and aeroengines components. Although mechanical and thermodynamic properties of this material have been deeply studied in the past years, a method able to investigate local properties of the thin white layer formed on the alloy surface after machining remains challenging. Here, a 90 nm X-ray beam is used to probe the local strain, crystal orientation, and chemical composition of grains in the white layer. Data reveals mosaicity induced by the tool during machining. The high spatial resolution, combined with crystal lattice sensitivity, shows that the average grain size is around 30 nm throughout the white layer, while the strain is anisotropic nearest to the surface. Results provide new insights on the basic properties of the white layer in super alloys, revealing important information about the impact of finish machining which might help to explain fatigue and cracking formation on these materials during their usage phase.
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| 35. |
-
A World Order in Transformation? : A Comparative Study of Consequences of the War and Reactions to These Changes in the Region
- 2024
-
Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- Russia's full-scale invasion and war of aggression against Ukraine has, in addition to all the destruction, grief and terror for the people concerned, unravelled the profound instability in what has conventionally been understood as the world order.The annual publication CBEES State of the Region report focuses on Central and Eastern Europe, the former Soviet Union, the Balkans, and the Baltic Sea region, where we find countries that are closest to the war. This year, we have engaged over 30 scholars to analyze how the countries in this region have been affected by the war to form a tentative understanding of the unfolding consequences of the war for the region. Understandably, the consequences of the war tie into historical and contemporary conditions that also preceded the war.The report presents a contemporary overview of the diversity of challenges the region and its countries face today, both on a macro level and on a grassroots level and gives a preliminary analysis of the implications for the region's future.
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| 36. |
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| 37. |
- Aabel, Lise, et al.
(författare)
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A TDD Distributed MIMO Testbed Using a 1-bit Radio-Over-Fiber Fronthaul Architecture
- 2024
-
Ingår i: IEEE Transactions on Microwave Theory and Techniques. - 0018-9480 .- 1557-9670. ; In Press
-
Tidskriftsartikel (refereegranskat)abstract
- We present the uplink and downlink of a time-division duplex distributed multiple-input multiple-output (D-MIMO) testbed, based on a 1-bit radio-over-fiber architecture, which is low cost and scalable. The proposed architecture involves a central unit (CU) that is equipped with 1-bit digital-to-analog and analog-to-digital converters, operating at 10 GS/s. The CU is connected to multiple single-antenna remote radio heads (RRHs) via optical fibers, over which a binary radio frequency (RF) waveform is transmitted. In the uplink, a binary RF waveform is generated at the RRHs by a comparator, whose inputs are the received RF signal and a suitably designed dither signal. In the downlink, a binary RF waveform is generated at the CU via bandpass sigma-delta modulation. Our measurement results show that low error-vector magnitude (EVM) can be achieved in both the uplink and the downlink, despite 1-bit sampling at the CU. Specifically, for point-to-point over-cable transmission between a single user equipment (UE) and a CU equipped with a single RRH, we report, for a 10-MBd signal using single-carrier (SC) 16 quadratic-amplitude modulation (QAM) modulation, an EVM of 3.3% in the downlink, and of 4.5% in the uplink. We then consider a CU connected to three RRHs serving over the air two UEs, and show that, after over-the-air reciprocity calibration, a downlink zero-forcing precoder designed on the basis of uplink channel estimates at the CU achieves an EVM of 6.4% and 10.9% at UE 1 and UE 2, respectively. Finally, we investigate the ability of the proposed architecture to support orthogonal frequency-division multiplexing (OFDM) waveforms, and its robustness against both in-band and out-of-band interference.
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| 38. |
- Aacharya, Ananta, et al.
(författare)
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Development of a novel solar dryer with an incorporated heat exchanger
- 2024
-
Ingår i: Solar Energy. - 0038-092X. ; 269
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Tidskriftsartikel (refereegranskat)abstract
- This study analyzes the thermal performance of an indirect-type solar dryer incorporated with a heat exchanger to recover heat from the exhaust. Data were recorded for 8 h from 9:00 to 17:00 from November to January to determine the drying rate for varying airflows from 2 l/s to 12 l/s under the weather conditions of Nepal and Bhutan. The air temperatures in multiple locations in the dryer were recorded and logged for 30-second intervals. The results indicated that incorporating a simple heat exchanger can achieve 78 % and 81 % effectiveness for the lowest tested airflow of 2.5 l/s and 2 l/s in Nepal and Bhutan. The heat transfer effectiveness increases with decreasing flow, resulting in a higher cold side outlet temperature of the heat exchanger for lower airflows. The solar air collector demonstrated efficient performance, achieving 80 % and 90 % efficiencies for the highest tested airflows of 12 l/s and 10 l/s in Nepal and Bhutan, respectively. Due to an increased heat transfer coefficient, the incoming air can effectively remove the accumulated heat from the absorber plate for higher airflows. The drying rates were observed to be the highest for 12 l/s, with a value of 85 g/(h × m2) for apples and 10 l/s, with a value of 56 g/(h × m2) for gingers in Nepal and Bhutan, respectively. From both cases, it can be concluded that the highest tested airflows provide higher air circulation for effective heat and mass transfer from the product to the surrounding air for drying.
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| 39. |
- Aad, G., et al.
(författare)
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A precise measurement of the Z-boson double-differential transverse momentum and rapidity distributions in the full phase space of the decay leptons with the ATLAS experiment at s=8 TeV
- 2024
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Ingår i: European Physical Journal C. - : Springer Nature. - 1434-6044 .- 1434-6052. ; 84:3
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents for the first time a precise measurement of the production properties of the Z boson in the full phase space of the decay leptons. This is in contrast to the many previous precise unfolded measurements performed in the fiducial phase space of the decay leptons. The measurement is obtained from proton–proton collision data collected by the ATLAS experiment in 2012 at s=8 TeV at the LHC and corresponding to an integrated luminosity of 20.2 fb-1. The results, based on a total of 15.3 million Z-boson decays to electron and muon pairs, extend and improve a previous measurement of the full set of angular coefficients describing Z-boson decay. The double-differential cross-section distributions in Z-boson transverse momentum pT and rapidity y are measured in the pole region, defined as 80
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| 40. |
- Aad, G., et al.
(författare)
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Combination of searches for pair-produced leptoquarks at s=13 TeV with the ATLAS detector
- 2024
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 854
-
Tidskriftsartikel (refereegranskat)abstract
- A statistical combination of various searches for pair-produced leptoquarks is presented, using the full LHC Run 2 (2015–2018) data set of 139 fb−1 collected with the ATLAS detector from proton–proton collisions at a centre-of-mass energy of s=13 TeV. All possible decays of the leptoquarks into quarks of the third generation and charged or neutral leptons of any generation are investigated. Since no significant deviations from the Standard Model expectation are observed in any of the individual analyses, combined exclusion limits are set on the production cross-sections for scalar and vector leptoquarks. The resulting lower bounds on leptoquark masses exceed those from the individual analyses by up to 100 GeV, depending on the signal hypothesis.
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| 41. |
- Aad, G., et al.
(författare)
-
Differential cross-section measurements of the production of four charged leptons in association with two jets using the ATLAS detector
- 2024
-
Ingår i: Journal of High Energy Physics (JHEP). - : Springer Nature. - 1126-6708 .- 1029-8479. ; 2024:1
-
Tidskriftsartikel (refereegranskat)abstract
- Differential cross-sections are measured for the production of four charged leptons in association with two jets. These measurements are sensitive to final states in which the jets are produced via the strong interaction as well as to the purely-electroweak vector boson scattering process. The analysis is performed using proton-proton collision data collected by ATLAS at root s = 13TeV and with an integrated luminosity of 140 fb(-1). The data are corrected for the effects of detector inefficiency and resolution and are compared to stateof-the-art Monte Carlo event generator predictions. The differential cross-sections are used to search for anomalous weak-boson self-interactions that are induced by dimension-six and dimension-eight operators in Standard Model effective field theory.
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| 42. |
- Aad, G, et al.
(författare)
-
Electron and photon energy calibration with the ATLAS detector using LHC Run 2 data
- 2024
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Ingår i: Journal of Instrumentation. - : Institute of Physics. - 1748-0221. ; 19:2
-
Tidskriftsartikel (refereegranskat)abstract
- This paper presents the electron and photon energy calibration obtained with the ATLAS detector using 140 fb−1 of LHC proton-proton collision data recorded at √s = 13 TeV between 2015 and 2018. Methods for the measurement of electron and photon energies are outlined, along with the current knowledge of the passive material in front of the ATLAS electromagnetic calorimeter. The energy calibration steps are discussed in detail, with emphasis on the improvements introduced in this paper. The absolute energy scale is set using a large sample of Z-boson decays into electron-positron pairs, and its residual dependence on the electron energy is used for the first time to further constrain systematic uncertainties. The achieved calibration uncertainties are typically 0.05% for electrons from resonant Z-boson decays, 0.4% at ET ∼ 10 GeV, and 0.3% at ET ∼ 1 TeV; for photons at ET ∼ 60 GeV, they are 0.2% on average. This is more than twice as precise as the previous calibration. The new energy calibration is validated using J/ → ee and radiative Z-boson decays. © 2024 Institute of Physics. All rights reserved.
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| 43. |
- Aad, G., et al.
(författare)
-
Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC
- 2024
-
Ingår i: Physical Review Letters. - 1079-7114. ; 132:2
-
Tidskriftsartikel (refereegranskat)abstract
- The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton-proton collision datasets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. These correspond to integrated luminosities of around 140 fb^{-1} for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is 2.2±0.7 times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.
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| 44. |
- Aad, G., et al.
(författare)
-
Evidence for the Higgs Boson Decay to a Z Boson and a Photon at the LHC
- 2024
-
Ingår i: Physical Review Letters. - : American Physical Society (APS). - 0031-9007 .- 1079-7114. ; 132:2
-
Tidskriftsartikel (refereegranskat)abstract
- The first evidence for the Higgs boson decay to a Z boson and a photon is presented, with a statistical significance of 3.4 standard deviations. The result is derived from a combined analysis of the searches performed by the ATLAS and CMS Collaborations with proton-proton collision datasets collected at the CERN Large Hadron Collider (LHC) from 2015 to 2018. These correspond to integrated luminosities of around 140 fb−1 for each experiment, at a center-of-mass energy of 13 TeV. The measured signal yield is 2.2±0.7 times the standard model prediction, and agrees with the theoretical expectation within 1.9 standard deviations.
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| 45. |
- Aad, G., et al.
(författare)
-
Inclusive and differential cross-section measurements of tt¯Z production in pp collisions at s = 13 TeV with the ATLAS detector, including EFT and spin-correlation interpretations
- 2024
-
Ingår i: Journal of High Energy Physics (JHEP). - : Springer Nature. - 1126-6708 .- 1029-8479. ; 2024:7
-
Tidskriftsartikel (refereegranskat)abstract
- Measurements of both the inclusive and differential production cross sections of a top-quark-top-antiquark pair in association with a Z boson (tt¯Z) are presented. Final states with two, three or four isolated leptons (electrons or muons) are targeted. The measurements use the data recorded by the ATLAS detector in pp collisions at s = 13 TeV at the Large Hadron Collider during the years 2015–2018, corresponding to an integrated luminosity of 140 fb−1. The inclusive cross section is measured to be σtt¯Z = 0.86 ± 0.04 (stat.) ± 0.04 (syst.) pb and found to be in agreement with the most advanced Standard Model predictions. The differential measurements are presented as a function of a number of observables that probe the kinematics of the tt¯Z system. Both the absolute and normalised differential cross-section measurements are performed at particle level and parton level for specific fiducial volumes, and are compared with NLO+NNLL theoretical predictions. The results are interpreted in the framework of Standard Model effective field theory and used to set limits on a large number of dimension-6 operators involving the top quark. The first measurement of spin correlations in tt¯Z events is presented: the results are in agreement with the Standard Model expectations, and the null hypothesis of no spin correlations is disfavoured with a significance of 1.8 standard deviations.
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| 46. |
- Aad, G., et al.
(författare)
-
Measurement of t-channel single-top-quark production in pp collisions at s=5.02 TeV with the ATLAS detector
- 2024
-
Ingår i: Physics Letters B. - : Elsevier B.V.. - 0370-2693 .- 1873-2445. ; 854
-
Tidskriftsartikel (refereegranskat)abstract
- The observation of the electroweak production of single-top-quarks is made using 255 pb−1 of proton-proton collision data recorded at s=5.02 TeV with the ATLAS detector at the Large Hadron Collider. An event selection is used to identify single-top-quark candidates arising from t-channel production with the top quark decaying semi-leptonically. Events passing the selection are then used to measure the inclusive cross-section for the combined production of single-top-quarks and antiquarks, σ(tq+t¯q), and the ratio Rt between these two. They are measured to be σ(tq+t¯q)=27.1−4.1+4.4(stat.)−3.7+4.4(syst.) pb and Rt=2.73−0.82+1.43(stat.)−0.29+1.01(syst.). The individual single-top-quark (tq) and single-top-antiquark (t¯q) production cross-sections are measured to be σ(tq)=19.8−3.1+3.9(stat.)−2.2+2.9(syst.) pb and σ(t¯q)=7.3−2.1+3.2(stat.)−1.5+2.8(syst.) pb. All measurements are in good agreement with the Standard Model predictions.
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| 47. |
- Aad, G., et al.
(författare)
-
Measurement of the Centrality Dependence of the Dijet Yield in Formula Presented Collisions at Formula Presented with the ATLAS Detector
- 2024
-
Ingår i: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 132:10
-
Tidskriftsartikel (refereegranskat)abstract
- ATLAS measured the centrality dependence of the dijet yield using Formula Presented of Formula Presented data collected at Formula Presented in 2016. The event centrality, which reflects the Formula Presented impact parameter, is characterized by the total transverse energy registered in the Pb-going side of the forward calorimeter. The central-to-peripheral ratio of the scaled dijet yields, Formula Presented, is evaluated, and the results are presented as a function of variables that reflect the kinematics of the initial hard parton scattering process. The Formula Presented shows a scaling with the Bjorken Formula Presented of the parton originating from the proton, Formula Presented, while no such trend is observed as a function of Formula Presented. This analysis provides unique input to understanding the role of small proton spatial configurations in Formula Presented collisions by covering parton momentum fractions from the valence region down to Formula Presented and Formula Presented. © 2024 CERN, for the ATLAS Collaboration.
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| 48. |
- Aad, G., et al.
(författare)
-
Measurement of the Centrality Dependence of the Dijet Yield in p+Pb Collisions at √sNN=8.16 TeV with the ATLAS Detector
- 2024
-
Ingår i: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 132:10
-
Tidskriftsartikel (refereegranskat)abstract
- ATLAS measured the centrality dependence of the dijet yield using 165 nb−1 of p+Pb data collected at √sNN=8.16 TeV in 2016. The event centrality, which reflects the p+Pb impact parameter, is characterized by the total transverse energy registered in the Pb-going side of the forward calorimeter. The central-to-peripheral ratio of the scaled dijet yields, RCP, is evaluated, and the results are presented as a function of variables that reflect the kinematics of the initial hard parton scattering process. The RCP shows a scaling with the Bjorken x of the parton originating from the proton, xp, while no such trend is observed as a function of xPb. This analysis provides unique input to understanding the role of small proton spatial configurations in p+Pb collisions by covering parton momentum fractions from the valence region down to xp∼10−3 and xPb∼4×10−4.
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| 49. |
- Aad, G., et al.
(författare)
-
Measurement of the H→ γγ and H→ ZZ∗→ 4 ℓ cross-sections in pp collisions at √s=13.6 TeV with the ATLAS detector
- 2024
-
Ingår i: European Physical Journal C. - : Institute for Ionics. - 1434-6044 .- 1434-6052. ; 84:1
-
Tidskriftsartikel (refereegranskat)abstract
- The inclusive Higgs boson production cross-section is measured in the di-photon and the ZZ∗→ 4 ℓ decay channels using 31.4 and 29.0 fb - 1 of pp collision data respectively, collected with the ATLAS detector at a centre-of-mass energy of s=13.6 TeV . To reduce the model dependence, the measurement in each channel is restricted to a particle-level phase space that closely matches the channel’s detector-level kinematic selection, and it is corrected for detector effects. These measured fiducial cross-sections are σfid,γγ= 76-13+14 fb, and σfid,4ℓ= 2.80±0.74 fb, in agreement with the corresponding Standard Model predictions of 67.6 ± 3.7 fb and 3.67 ± 0.19 fb. Assuming Standard Model acceptances and branching fractions for the two channels, the fiducial measurements are extrapolated to the full phase space yielding total cross-sections of σ(pp→H)=67-11+12 pb and 46 ± 12 pb at 13.6 TeV from the di-photon and ZZ∗→ 4 ℓ measurements respectively. The two measurements are combined into a total cross-section measurement of σ(pp→ H) = 58.2 ± 8.7 pb, to be compared with the Standard Model prediction of σ(pp→ H) SM= 59.9 ± 2.6 pb.
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| 50. |
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