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The x-ray absorption spectrum of the O2+ molecular cation is measured. The ions are stored in a cryogenically cooled radiofrequency ion trap and probed by tunable synchrotron radiation. The spectrum exhibits several salient features: a three-state composite π∗ resonance at the low-energy side followed by a two-component exchange split, a highly dissociative, σ∗ resonance pulled down well below the
In an era of rapid technological advancements, the digital economy has witnessed significant transformations, resulting in the emergence of dominant technology giants. The rising dominance of companies like Google and Amazon has raised concerns in the European Union (“EU”) regarding fair competition and consumer welfare. This thesis comprehensively examines the impact of digital markets and online
Background: The aim of this study was to compare maternal labour and birth outcomes between women who gave birth on a birth seat or in any other position for vaginal birth and further, to study the relationship between synthetic oxytocin augmentation and maternal blood loss, in a stratified sample. Methods: A re-analysis of a randomized controlled trial in Sweden. An on-treatment analysis was used
gamma-Ray irradiation at liquid nitrogen temperature of a dimethylformamide solution of the tetranuclear complex [(Mn4O6)-O-IV(bipy)(6)](4+) (bipy = 2,2'-bipyridine) allowed the generation of the first mixed-valence tetranuclear system containing Mn-III and Mn-IV ions and exhibiting a S = 1/2 ground state. The X-band EPR spectrum of this tetranuclear system has been obtained. Simulations have been
Our hypothesis is that neighborhood infrastructure modifies the association between state-level income distribution and self-rated health. In our findings neighborhood infrastructure amplifies the association between income equality and self-rated health, yet with a differential impact on health according to sex, race and education level favoring individuals at higher socioeconomic positions. Most
Purpose: To examine any associations between postural asymmetries, postural ability, and pain for children with cerebral palsy in sitting and supine positions. Methods: A cross-sectional study of 2,735 children with cerebral palsy, 0-18 years old, reported into the Swedish CPUP registry. Postural asymmetries, postural ability, the gross motor function classification system levels I–V, sex, age and
This paper examines how professionals position themselves and negotiate their identity in the intersection of professional work and sales work in the context of two professional service firms. We propose the concept of camouflaging as identity work to illustrate how professionals (re)construct their identity and position themselves as professionals by integrating and blurring the lines between the
Preamble: Robotic magnetic navigation (RMN)-guided catheter ablation (CA) technology has been used for the treatment of cardiac arrhythmias for almost 20 years. Various studies reported that RMN allows for high catheter stability, improved lesion formation and a superior safety profile. So far, no guidelines or recommendations on RMN-guided CA have been published. Purpose: The aim of this consensu
ISIS is not a state. Legal considerations point at that ISIS is a non-state actor and a terrorist organisation. Out of the declaratory theory of recognition, effective control, rule through consent, stabilisation of national conditions and the constitutive theory of recognition ISIS quite convincingly fulfils the first two criteria. In UNC article 2.4 we find a prohibition on the use of force. The
BACKGROUND: With a growing elderly population worldwide, the prevalence of dementia is rapidly increasing. Studies from high income countries have shown that belonging to a minority ethnic group increases the risk of health disadvantages.OBJECTIVE: The aim of the present registry-based study was to identify potential differences in diagnostics, treatment, and care of individuals with dementia focu
To avoid harm to the public and the environment, lost ionizing radiation sources must be found and brought back under the regulatory control as soon as possible. Usually, mobile gamma spectrometry systems are used in such search missions. It is possible to estimate the position and activity of point gamma sources by performing Bayesian inference on the measurement data. The aim of this study was t
Microsoft Word - STATISTICAL MECHANICS2.doc 31 4. Two-level systems 4.1 Introduction Two-level systems, that is systems with essentially only two energy levels are important kind of systems, as at low enough temperatures, only the two lowest energy levels will be involved. Especially important are solids where each atom has two levels with different energies depending on whether the electron of th
https://www.particle-nuclear.lu.se/sites/particle-nuclear.lu.se/files/2025-01/statistical-mechanics-2.pdf - 2026-09-12
How are galaxies, stars and planets created in our gigantic universe? And what forces in the quantum world affect the smallest constituents of matter? Our researchers are contributing pieces of the puzzle and are also involved in the quest for knowledge about dark matter and new elements, as well as in development work at the MAX IV Laboratory. Stars and planets of the Milky WayIn astrophysics, ou
https://www.science.lu.se/research/our-research-areas/physics-quantum-particles-universe - 2026-09-11
