| 1. |
- Berg, Jan, et al.
(författare)
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Perceived audio quality of realistic FM and DAB+ radio broadcasting systems
- 2013
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Ingår i: Journal of The Audio Engineering Society. - 1549-4950. ; 61:10, s. 755-777
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Tidskriftsartikel (refereegranskat)abstract
- The perceived audio quality of a digital broadcasting system such as DAB+ is dependent on what type of coding and bit rates are applied. Due to bandwidth constraints, audio quality is prone to be in conflict with other service demands such as the number of channels and the transfer of ancillary data. Compared to DAB+, several other audio services have superior bit rates that challenge the audio quality of DAB+. This paper reviews audio-quality criteria and investigates how the perceived audio quality of different broadcasting systems complies with the criteria. Two studies were conducted: Test 1 where DAB+ codecs were tested at bit rates between 96 and 192 kbit/s and Test 2 where DAB+ systems between 48 and 192 kbit/s as well as FM systems were tested. The systems in Test 2 were designed to as far as possible model a realistic broadcasting signal chain including commonly used dynamic processors. The studies were realized through two listening experiments using the ITU-R recommendations BS.1116 and BS.1534 (MUSHRA) followed by a closing interview. The results showed that the currently highest available subchannel bit rate for DAB+ (192 kbit/s) was insufficient for attaining perceptually transparent quality for critical items, whereas it enabled a quality comparable to or in some instances better than a modern FM system. Extrapolation of data indicates that critical items may need to be coded at even higher bit rates to reach perceptually transparent quality. From the interviews, auditory features important for the subjects’ assessment of quality were observed. This study concludes that when making decisions on broadcasting systems, it is important to have well-founded and clearly defined criteria for minimum acceptable quality and/or perceptually transparent quality.
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| 2. |
- Mårtensson, Johan, et al.
(författare)
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White matter microstructure predicts foreign language learning in army interpreters
- 2020
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Ingår i: Bilingualism. - : Cambridge University Press. - 1366-7289 .- 1469-1841. ; 23:4, s. 763-771
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Tidskriftsartikel (refereegranskat)abstract
- Adult foreign language acquisition is challenging, and the degree of success varies among individuals. Anatomical differences in brain structure prior to training can partly explain why some learn more than others. We followed a sample of conscript interpreters undergoing intense language training to study learning-related changes in white-matter microstructure (FA, MD, RD and AD) and associations between differences in brain structure prior to training with acquired language proficiency. No evidence for changes in white matter microstructure relative to a control group was found. Starting values of RD, AD and MD were positively related to final test scores of language proficiency, corroborating earlier findings in the field and highlighting the need for further study of how initial brain structure influences and interacts with learning outcomes.
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| 3. |
- Nyberg, Lennart, et al.
(författare)
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Dikten och ögat
- 2003
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Ingår i: Vidgade sinnen : en antologi. - 9157804354
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
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| 4. |
- Andersson, Linus, 1979-, et al.
(författare)
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Neurocognitive processes underlying heuristic and normative probability judgments
- 2020
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Ingår i: Cognition. - : ELSEVIER. - 0010-0277 .- 1873-7838. ; 196, s. 1-7
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Tidskriftsartikel (refereegranskat)abstract
- Judging two events in combination (A&B) as more probable than one of the events (A) is known as a conjunction fallacy. According to dual-process explanations of human judgment and decision making, the fallacy is due to the application of a heuristic, associative cognitive process. Avoiding the fallacy has been suggested to require the recruitment of a separate process that can apply normative rules. We investigated these assumptions using functional magnetic resonance imaging (fMRI) during conjunction tasks. Judgments, whether correct or not, engaged a network of brain regions identical to that engaged during similarity judgments. Avoidance of the conjunction fallacy additionally, and uniquely, involved a fronto-parietal network previously linked to supervisory, analytic control processes. The results lend credibility to the idea that incorrect probability judgments are the result of a representativeness heuristic that requires additional neurocognitive resources to avoid.
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| 5. |
- Brounéus, Fredrik, et al.
(författare)
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”Vi måste förbereda oss för att antibiotika slutar fungera”
- 2021
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Ingår i: Dagens Nyheter. - Stockholm : AB Dagens nyheter. - 1101-2447. ; :2021-02-17
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- 11 forskare: En framtid utan verksam antibiotika är inte nödvändigtvis ett undergångsscenario eller en nattsvart dystopi. Men samhällets alla sektorer måste förbereda sig i god tid. Då kan detta postantibiotiska samhälle mycket väl utgöra en levbar framtid.
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| 6. |
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Klarälven
- 2011
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- Det är en strävan inför framtiden att skapa en hållbar utveckling där sociala, ekonomiska och ekologiska aspekter vägs mot varandra i en kontinuerlig process. I denna bok har forskare, författare och lokalt historiskt verksamma personer samlats för att ge olika perspektiv på Klarälven med omnejder som ett bidrag för skapandet av en hållbarare framtid.
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| 7. |
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Monastic culture: the long thirteenth century : essays in honour of Brian Patrick McGuire
- 2014
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Samlingsverk (redaktörskap) (refereegranskat)abstract
- Monasteries were important cultural centers in the Middle Ages. In monasteries, classical authors were copied and studied, new music and new sermons were composed, and new standards from abroad were introduced and spread throughout an ever larger Europe. Monks and nuns created European networks, connecting them to individuals with whom they shared particular interests in theology and learning, but they also had a keen eye for the importance of cultivating connections to local magnates and kings. In the long 13th century, new orders like the mendicants emerged, and monastic life as a whole flourished. Sustained experimentation, the adaptation of new intellectual inspirations, and the adjustment of organizational structures were major characteristics of this life. There was a balance between contemplating the transcendent and securing the material foundation that allowed the individual monk or nun to disappear into the Divine. Monastic communities were powerful centers for innovation that decisively influenced secular life and shaped European history. The contributions in this festschrift are offered in honor of Professor Brian Patrick McGuire, a recognized authority on the Cistercians, and in acknowledgment of his significant contribution to the study of European monastic culture.
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