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For plasma-wakefield accelerators to fulfill their potential for cost effectiveness, it is essential that their energy-transfer efficiency be maximized. A key aspect of this efficiency is the near-complete transfer of energy, or depletion, from the driver electrons to the plasma wake. Achieving full depletion is limited by the process of re-acceleration, which occurs when the driver electrons dece
Detailed knowledge of particle-beam properties is of great importance to understand and push the performance of existing and next-generation particle accelerators. We recently proposed a phase-space tomography method to reconstruct the five-dimensional (5D) phase space, i.e., the charge density distribution in all three spatial directions and the two transverse momenta. Here, we present the first
FLASHForward is an experimental facility at DESY dedicated to beam-driven plasma-accelerator research. The X-2 experiment aims to demonstrate acceleration with simultaneous beam-quality preservation and high energy efficiency in a compact plasma stage. We report on the completed commissioning, first experimental results, ongoing research topics, as well as plans for future upgrades.
Economic policy instruments are commonly used to address environmental problems. This study examines the historical development of the carbon tax in Sweden. By using the concept of epistemic culture, this study shows how carbon emissions, rather than energy use alone, emerged as an object of taxation. While the leading politicians saw the carbon tax as an innovative instrument for demonstrating cl
Soil microorganisms regulate carbon (C) cycling, and their growth and respiration are strongly dependent on temperature. Yet it remains unclear how warming alters microbial thermal traits, community structure, and the balance between microbial respiration and growth, particularly in subtropical ecosystems where high temperatures coincide with low soil moisture, potentially constraining microbial a
In the years between 1915 and 1921, Harvard professor of Slavic Languages Leo Wiener (1862–1939) published a controversial and now largely forgotten series of philological studies which sought to prove that that all textual sources testifying to the languages, laws, customs, and beliefs of the ancient Germanic peoples had been forged in the eighth century C.E. by a group of Arabicized Goths in the
Background: General practitioners (GPs) do not see men with localised urinary tract infection (UTI) very often which limits their possibility of developing expertise in the area. To gain knowledge of male patients' experiences and perspectives on localised UTIs, qualitative research is needed.Aim: To explore expectations, experiences and symptoms in men with localised urinary tract infection in prBackgroundGeneral practitioners (GPs) do not see men with localised urinary tract infection (UTI) very often which limits their possibility of developing expertise in the area. To gain knowledge of male patients’ experiences and perspectives on localised UTIs, qualitative research is needed.AimTo explore expectations, experiences and symptoms in men with localised urinary tract infection in primar
We present an updated characterization of the planetary system orbiting the nearby M2 dwarf GJ 3090 (TOI-177; d=22 pc), based on new high-precision radial velocity (RV) observations from NIRPS and HARPS. With an orbital period of 2.85 d, the transiting sub-Neptune GJ 3090 b has a mass we refine to 4.52 ± 0.47 M>, which, combined with our derived radius of 2.18 ± 0.06 R2, yields a density of 2.40-0
This paper presents the characterisation and testing of the first wafer-scale monolithic stitched sensor (MOSS) prototype developed for the ALICE ITS3 upgrade that is to be installed during the LHC Long Shutdown 3 (2026–2030). The MOSS chip design is driven by the truly cylindrical detector geometry that imposes that each layer is built out of two wafer-sized, bent silicon chips. The stitching tec
The intense stellar irradiation of ultra-hot Jupiters results in some of the most extreme atmospheric environments in the planetary regime. On their daysides, temperatures can be sufficiently high for key atmospheric constituents to thermally dissociate into simpler molecular species and atoms. This dissociation drastically changes the atmospheric opacities and, in turn, critically alters the temp
Context. The Near InfraRed Planet Searcher (NIRPS) joined HARPS on the 3.6-m ESO telescope at La Silla Observatory in April 2023, dedicating part of its Guaranteed Time Observations (GTO) program to the radial velocity follow-up of TESS planet candidates to confirm and characterize transiting planets around M dwarfs. Aims. We present the “Sub-Neptunes” subprogram of the NIRPS-GTO, aimed at investi
Neophobia, or aversion to novelty, is important for adaptability and survival as it influences the ways in which animals navigate risk and interact with their environments. Across individuals, species and other taxonomic levels, neophobia is known to vary considerably, but our understanding of the wider ecological drivers of neophobia is hampered by a lack of comparative multispecies studies using
The pseudorapidity distribution of charged hadrons produced in Au+Au collisions at a center-of-mass energy of sNN = 200 GeV is measured using data collected by the sPHENIX detector. Charged hadron yields are extracted by counting cluster pairs in the inner and outer layers of the Intermediate Silicon Tracker, with corrections applied for detector acceptance, reconstruction efficiency, combinatoria
There is limited research examining the perspectives on the use of genetic testing in psychiatric care among individuals of non-European ancestry. Adults with obsessive–compulsive disorder (OCD) of Latin American ancestry (n = 1,513) completed a survey assessing their interest in receiving genetic testing for OCD, their level of comfort with disclosing this information, views on the use of genetic
