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Chaotic behavior of quantum cascade lasers at ignition
The ignition of Quantum Cascade Lasers can occur from a state of oscillating field domains. Here, the interplay between lasing and the kinetics of traveling domain boundaries provides complex oscillation scenarios. We analyze our numerical findings in detail for a device operating at terahertz frequencies and manifest chaotic evolution by positive Lyapunov exponents. This shows that these importan
Violating the thermodynamic uncertainty relation in the three-level maser
Nanoscale heat engines are subject to large fluctuations which affect their precision. The thermodynamic uncertainty relation (TUR) provides a trade-off between output power, fluctuations, and entropic cost. This trade-off may be overcome by systems exhibiting quantum coherence. This Letter provides a study of the TUR in a prototypical quantum heat engine, the Scovil–Schulz-DuBois maser. Compariso
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Structure of the native pyruvate dehydrogenase complex reveals the mechanism of substrate insertion
The pyruvate dehydrogenase complex (PDHc) links glycolysis to the citric acid cycle by converting pyruvate into acetyl-coenzyme A. PDHc encompasses three enzymatically active subunits, namely pyruvate dehydrogenase, dihydrolipoyl transacetylase, and dihydrolipoyl dehydrogenase. Dihydrolipoyl transacetylase is a multidomain protein comprising a varying number of lipoyl domains, a peripheral subunit
Cortical Activity During an Attack of Ménière's Disease-A Case Report
Background: Ménière's disease (MD) is a chronic peripheral vestibular disorder with recurrent episodes of vertigo accompanied by fluctuating hearing loss, tinnitus and aural fullness in the affected ear. There are several unanswered fundamental questions regarding MD, one of these being cortical activity during a MD attack. However, it is not possible to plan an investigation in an episodic diseas
Antonio Fábregas & Michael Putman: Passives and Middles in Mainland Scandinavian. Microvariation through Exponency
Scientific Authorship and Copyright Law in Big Science User Facilities: the Case of ESS
European Market Integration and the Behaviour of Prices, 1850-1914
Hårresande dyra kändisklenoder
Psychosocial working conditions and social participation. A 10-year follow-up of senior workers.
Prices and Market Integration : Sweden and Britain during the 19th and 20th Centuries
Authors and Creative Users : Addressing the Conceptual Challenges of Digital Creativity to EU Copyright Law from the Perspective of the Author
To be an “author” might mean many different things, depending on the context in which the word is used. This thesis explores the EU copyright’s concept of author and how it relates to the everyday digital creativity on the Internet. It invites to consider what EU copyright law might look like if the digital creators which this thesis calls Creative Users were included in the legal system as “autho
Big Science and the Law
The European Spallation Source (ESS) is a state-of-the-art neutron scattering facility, built on the outskirts of Lund in Southern Sweden, and expected to be taken into scientific operation in 2023. It is funded, run, and built by a consortium of thirteen (to date) European governments who jointly provide for its funding and establish its overarching governance principles, and it is co-hosted by S
RIFM fragrance ingredient safety assessment, methyl decanoate, CAS Registry Number 110-42-9
”Klimatkompensation i svensk skog en dålig idé”
Företag som ser sig om efter åtgärder för att minska sin klimatpåverkan och samtidigt stärka sitt varumärke bör undvika klimatkompensation i svenska skogar. Det skriver sex forskare.
RIFM fragrance ingredient safety assessment, tricyclo[5.2.1.02,6]decan-8-one, CAS Registry Number 13380-94-4
Second primary cancers after liver, gallbladder and bile duct cancers, and these cancers as second primary cancers
Background: Second primary cancers (SPCs) are important clinically as they may negatively influence patient survival and they may tell about therapeutic side effects and general causes of cancer. Population-based literature concerning SPCs after hepatobiliary cancers is limited and here we assess risks of SPCs after hepatocellular cancer (HCC), and cancers of the gallbladder, bile ducts and ampull
Visualization of wrist anatomy—a comparison between 7T and 3T MRI
Objective: Injuries to the wrist are, due to its small size and complex anatomical structures, difficult to assess by MR, and surgical interventions such as diagnostic arthroscopy are often necessary. Therefore, improved visualization using non-invasive methods could be of clinical value. As a first step of improvement, the purpose of this study was to evaluate visualization of anatomical structur
Ambulance clinicians’ attitudes to older patients’ self-determination when the patient has impaired decision-making ability: A Delphi study
ObjectiveThe proportion of older people is increasing and reflects in the demand on ambulance services (AS). Patients can be more vulnerable and increasingly dependent, especially when their decision-making ability is impaired. Self-determination in older people has a positive relation to quality of life and can raise ethical conflicts in AS. Hence, the aim of this study was to empirically explore