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Spectra, current flow, and wave-function morphology in a model PT -symmetric quantum dot with external interactions
In this paper we use numerical simulations to study a two-dimensional (2D) quantum dot (cavity) with two leads for passing currents (electrons, photons, etc.) through the system. By introducing an imaginary potential in each lead the system is made symmetric under parity-time inversion (PT symmetric). This system is experimentally realizable in the form of, e.g., quantum dots in low-dimensional se
Azimuthal anisotropy of charged jet production in √sNN=2.76 TeV Pb–Pb collisions
We present measurements of the azimuthal dependence of charged jet production in central and semi-central sNN=2.76 TeV Pb–Pb collisions with respect to the second harmonic event plane, quantified as v2 ch jet. Jet finding is performed employing the anti-kT algorithm with a resolution parameter R=0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy o
Search for electroweak production of supersymmetric particles in final states with two or three leptons at √s = 13 TeV with the ATLAS detector
A search for the electroweak production of charginos, neutralinos and sleptons decaying into final states involving two or three electrons or muons is presented. The analysis is based on 36.1 fb−1 of √s = 13 TeV proton– proton collisions recorded by the ATLAS detector at the Large Hadron Collider. Several scenarios based on simplified models are considered. These include the associated production
Investigating the architecture and internal structure of the TOI-561 system planets with CHEOPS, HARPS-N, and TESS
Moving away from the throwaway society : Five policy instruments for extending the life of consumer durables
The majority of all environmental impacts can be linked to our consumption. As real wages increase, so does consumption levels – more holiday trips, more clothing purchases, faster replacement of products for newer versions,etc. This trend poses a threat to the state of our planet. While the Nordic countries are high in the overall rankings of achieving the UN’s Sustainable Development Goals, they
Nanoantenna effect of surface-enhanced Raman scattering : managing light with plasmons at the nanometer scale
Manipulating light on the nanometer scale is a challenging topic not only from a fundamental point of view, but also for applications aiming toward the design of miniature optical devices. Nanoplasmonics is a rapidly emerging branch of photonics, which offers variable means to manipulate light using surface plasmon excitations on metal nanostructures. As a spectroscopic phenomenon discovered nearl
Search for K+ decays to a muon and invisible particles
The NA62 experiment at CERN reports searches for K+→μ+N and K+→μ+νX decays, where N and X are massive invisible particles, using the 2016–2018 data set. The N particle is assumed to be a heavy neutral lepton, and the results are expressed as upper limits of O(10−8) of the neutrino mixing parameter |Uμ4|2 for N masses in the range 200–384 MeV/c2 and lifetime exceeding 50 ns. The X particle is consi
Association between Adherence to Swedish Dietary Guidelines and Mediterranean Diet and Risk of Stroke in a Swedish Population
Dietary factors associated with stroke risk are still rather unknown. The aim was to examine the association between adherence to healthy dietary patterns and incidence of stroke among 25,840 individuals from the Swedish Malmö Diet and Cancer Study cohort. Dietary data were obtained using a combination of a 7-day food record, diet questionnaire, and interview. A Swedish Dietary Guidelines Score (S
The Later Life Audio and Radio Co-operative: considering radio as a technology to promote citizen dialogue in later life
The Later Life Audio and Radio Co-operative (LLARC) is an England-widenetwork of older content creators, age-inclusive radio stations,third sector organisations, local authorities and academics workingon ageing issues. The co-operative was established in 2019 as anoutcome from a participatory action research project. Aiming topromote talk-based content created by older adults, the LLARCadvocates f
Geometrical Confinement Modulates the Thermoresponse of a Poly (N-isopropylacrylamide) Brush
The structure of grafted-from poly(N-isopropylacrylamide) (PNIPAM) brushes is investigated as a function of confining stress and system temperature using neutron reflectometry (NR), numerical self-consistent field theory, and the reanalysis of colloid probe atomic force microscopy (AFM) data from the literature. For NR experiments, confinement is achieved using a custom-made sample environment, an
Search for dark matter in association with a Higgs boson decaying to two photons at √s=13 TeV with the ATLAS detector
A search for dark matter in association with a Higgs boson decaying to two photons is presented. This study is based on data collected with the ATLAS detector, corresponding to an integrated luminosity of 36.1 fb-1 of proton-proton collisions at the LHC at a center-of-mass energy of 13 TeV in 2015 and 2016. No significant excess over the expected background is observed. Upper limits at 95% confide
The bimodal [Mg/Fe] versus [Fe/H] bulge sequence as revealed by APOGEE DR14
Context. The Galactic bulge has a bimodal metallicity distribution function: different kinematic, spatial, and, potentially, age distributions characterize the metal-poor and metal-rich components. Despite this observed dichotomy, which argues for different formation channels for those stars, the distribution of bulge stars in the ff-abundance versus metallicity plane has been found so far to be a
Making sense of circularity. An institutional logic perspective on circular business model transitions in incumbent firms.
Circular business models (CBMs) promise improved resource efficiency, value creation and retention. Still, CBM operationalization among large incumbents remains slow in practice. Yet, this plays a critical role in driving industry transformations towards sustainability. Prior research outlines challenges that incumbents encounter when operationalizing CBMs - yet remains fragmented and unable to ex
Ophrys apifera, en ny orkidé för Sverige
Pushing the MAX IV 3 GeV storage ring brightness and coherence towards the limit of its magnetic lattice
The MAX IV 3 GeV storage ring is presently being commissioned and crucial parameters such as machine functions, emittance, and stored current have either already been reached or are approaching their design specifications [1, 2]. Once the baseline performance has been achieved, a campaign will be launched to further improve the brightness and coherence of this storage ring for typical x-ray users.
Low Risk of Procedure Related Major Amputation Following Revascularisation for Intermittent Claudication : A Population Based Study
Objective: To investigate the risk of procedure-related major amputation attributable to revascularization for intermittent claudication (IC) in a population-based observational cohort study. Methods: All patients who underwent open or endovascular lower limb revascularisation for IC in Sweden between 12 May 2008 and 31 December 2012 were identified from the Swedish National Quality Registry for V
3ΛH and 3ΛH production in Pb-Pb collisions at √sNN=2.76 TeV
The production of the hypertriton nuclei HΛ3 and H[U+203E]Λ-3 has been measured for the first time in Pb-Pb collisions at sNN=2.76 TeV with the ALICE experiment at LHC. The pT-integrated HΛ3 yield in one unity of rapidity, dN/dy×B.R.(HΛ3→He3,π-)=(3.86±0.77(stat.)±0.68(syst.))×10-in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same