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The physics of quantized vortex excitations in atomic Bose-Einstein condensates has been extensively studied in recent years.Although simple vortex lines are relatively easy to create, control, and measure in experiments, it is a lot more difficult to do the same for vortex ring structures.Here we suggest and explore a method for generating and controlling superfluid vortex rings, vortex ring latt

We study a two component Bose-Einstein condensate in the presence of an inhomogeneous artificial gauge field. In response to this field, the condensate forms a localised vortex lattice structure that leads to a non-trivial symmetry breaking in the phase separated regime. The underlying physical mechanism can be understood by considering the energy landscape and we present a simplified model that i

Growing evidence suggests that sexual reproduction might be common in unicellular organisms, but observations are sparse. Limited knowledge of sexual reproduction constrains understanding of protist ecology. Although Teleaulax amphioxeia and Plagioselmis prolonga are common marine cryptophytes worldwide, and are also important plastid donors for some kleptoplastic ciliates and dinoflagellates, the

This article aims to analyse the changes in migration regimes in Sweden over the period 1739–1982. We have chosen to divide this into four periods where each is characterized as a specific regime: the pre-industrial period (1739–1860), the laissez faire period (1860–1932), the rising ambitions period (1932–1951) and the Rehn-Meidner period (1951–1982). These four periods reveal different approache

Background: Many people are dying from coronavirus disease 2019 (COVID-19), but consensus guidance on palliative care in COVID-19 is lacking. This new life-threatening disease has put healthcare systems under pressure, with the increased need of palliative care provided to many patients by clinicians who have limited prior experience in this field. Therefore, we aimed to make consensus recommendat

This article discusses sustainability in Human Resource Management (HRM) in the blurred digital working life, focusing on the emotion of stress. Its empirical basis is an activity and emotion diary study conducted with 26 employees of three industrial companies in Sweden. Our results show that work and private life are integrated by digital activities and also by emotions. Due to the extensive use

Y6 is a new type of non-fullerene acceptor, which has led to power conversion efficiencies of single-junction polymer solar cells over 17% when combined with a careful choice of polymeric donors. However, the excited state characteristics of Y6, which is closely correlated with its opto-electronic applications, are not clear yet. In this work, we studied the excited state properties of the Y6 solu

Documentation is the process of recording, examining, analyzing, and archiving information in order to present it to researchers, interested individuals, students, and decision-makers, which entails taking specific policies, strategies, and plans based on that information later on. The article discusses the importance of the documentation process in defending the minorities in Yemen.

Genom regler formulerade på ett språk och med förklaringar som människor förstår kan automatiserade beslutsgrunder visas och granskas. Det skriver Odd Steen, docent i informatik vid Lunds universitet.

Non-photochemical quenching (NPQ) is an important photoprotective mechanism in plants and algae. Although the process is extensively studied, little is known about its relationship with ultrastructural changes of the thylakoid membranes. In order to better understand this relationship, we studied the effects of illumination on the organization of thylakoid membranes in Monstera deliciosa leaves. T

Smokers are at increased risk for surgical complications. Despite the known benefits of smoking cessation, many perioperative health care providers do not routinely provide smoking cessation interventions. The variation in delivery of perioperative smoking cessation interventions may be due to limited high-level evidence for whether smoking cessation interventions used in the general population ar

Measurement of Z-boson production in p-Pb collisions at sNN = 8.16 TeV and Pb-Pb collisions at sNN = 5.02 TeV is reported. It is performed in the dimuon decay channel, through the detection of muons with pseudorapidity −4 < ημ< −2.5 and transverse momentum pTμ> 20 GeV/c in the laboratory frame. The invariant yield and nuclear modification factor are measured for opposite-sign dimuons with invarian

Inclusive and differential cross-sections for the production of top quarks in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 139 fb−1. The data were collected by the ATLAS detector at the LHC during Run 2 between 2015 and 2018 at a centre-of-mass energy of 13 TeV. The measurements are performed in a fiducial volume defined at p

Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), causing Coronavirus Disease 19 (COVID-19), emerged at the end of 2019 and quickly spread to cause a global pandemic with severe socio-economic consequences. The early sequencing of its RNA genome revealed its high similarity to SARS, likely to have originated from bats. The SARS-CoV-2 non-structural protein 10 (nsp10) displays high sequ

Under de senaste åren har västeuropeiska bedömare uttryckt oro över utvecklingen i Ungern och Polen. En ny spricka mellan Väst- och Östeuropa har tagit form, vilket märktes till exempel i samband med valet till Europaparlamentet förra året. Inte minst uppfattas Ungerns premiärminister Viktor Orbán och Frankrikes president Emmanuel Macron som representanter för ett östligt, bakåtblickande respektiv

The transitions to a low carbon and sustainable society are urgent, but at the current level and pace of action there is a significant risk we will escalate and exceed the goals of the Paris Climate Agreement and fail to achieve the Sustainable Development Goals. By engaging cities, we can build momentum around bottom-up interconnected actions and accelerate societal and technological transitions.

“Garden phlox ‘Alma Jansson’ comes from a smallholding in Roslagen. It has been on the farm at least since 1939 when Stina Jansson moved in. It was her mother-in-law, Alma Jansson, who took care of the plants in the garden. ‘Everything comes from Grandma. She had such beautiful flowers’, said Stina. We do not know where she received or bought this variety, but it was not newly planted in 1939.” Th

To shed light on the interaction between macroprudential and monetary policies, we study the inward transmission of foreign monetary policy in conjunction with domestic macroprudential and monetary policies in Norway and Sweden. Using detailed bank‐level data, we show how Norwegian and Swedish banks’ lending reacts to monetary policy surprises arising abroad, controlling for the domestic macroprud

We report the evolution of metastable precursor structures during hydrogen infusion in the near-surface region of a super duplex stainless steel. Grazing-incidence x-ray diffraction was employed to monitor, operando, the lattice degradation of the austenite and ferrite phases. Electrochemical hydrogen charging resulted in the splitting of the diffraction peaks of the austenite phase, suggesting th