5,694 results match your criteria: "Universitat Mainz[Affiliation]"

The XENONnT dark matter experiment.

Eur Phys J C Part Fields

August 2024

Physics Department, Columbia University, New York, NY 10027 USA.

The multi-staged XENON program at INFN Laboratori Nazionali del Gran Sasso aims to detect dark matter with two-phase liquid xenon time projection chambers of increasing size and sensitivity. The XENONnT experiment is the latest detector in the program, planned to be an upgrade of its predecessor XENON1T. It features an active target of 5.

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Objective The aim of the study was to examine real differences in the use of psychotherapy in the New Federal States during the GDR era and today. In addition, differences according to the willingness seeking psychotherapy as well as barriers in opinions and contact to the mentally ill between people from the New Federal States, the Old Federal States and people who moved from the New Federal States to the Old Federal States (internal migrants) should be recorded, taking into account generational effects (experience of the Cold War - birth before / after January 1, 1980). Methods To investigate these questions, the data from a representative survey in the New Federal States of N=2729 people as well as the data from a second online based survey of people from the New and Old Federal States as well as internal migrants with a total of N=4789 participants were evaluated.

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We present a wide-reaching revamp of the generalized many-body expanded full configuration interaction (MBE-FCI) method. First, we outline how to automatize the selection of reference active spaces, whereby the inherent bias introduced through a manual identification is reduced, also within the context of traditional complete active space methods. Second, we allow for the use of compact orbital clusters as expansion objects, which works to circumvent the unfavorable scaling with the number of orbitals included in the space complementary to the reference orbitals.

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Statistical combinations of searches for charginos and neutralinos using various decay channels are performed using 139  fb^{-1} of pp collision data at sqrt[s]=13  TeV with the ATLAS detector at the Large Hadron Collider. Searches targeting pure-wino chargino pair production, pure-wino chargino-neutralino production, or Higgsino production decaying via standard model W, Z, or h bosons are combined to extend the mass reach to the produced supersymmetric particles by 30-100 GeV. The depth of the sensitivity of the original searches is also improved by the combinations, lowering the 95% C.

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Hybrid quantum systems integrate laser-cooled trapped ions and ultracold quantum gases within a single experimental configuration, offering vast potential for applications in quantum chemistry, polaron physics, quantum information processing, and quantum simulations. In this study, we introduce the development and experimental validation of an ion trap chip that incorporates a flat atomic chip trap directly beneath it. This innovative design addresses specific challenges associated with hybrid atom-ion traps by providing precisely aligned and stable components, facilitating independent adjustments of the depth of the atomic trapping potential, and positioning trapped ions.

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The first results of the study of high-energy electron neutrino (ν_{e}) and muon neutrino (ν_{μ}) charged-current interactions in the FASERν emulsion-tungsten detector of the FASER experiment at the LHC are presented. A 128.8 kg subset of the FASERν volume was analyzed after exposure to 9.

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Objective: We explore the idea that inhibitory self-control and prohedonic emotion regulation may be incompatible concerns.

Background: Specifically, we propose that because some forms of self-control involve denying oneself hedonic pleasures, it may lead to negative affect. Because people may then prioritize emotion regulation over self-control, negative affect may in turn lead to emotion regulation efforts, specifically the use of emotion regulation strategies, and an increased likelihood of self-control failure.

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Listeners with normal audiometric thresholds show substantial variability in their ability to understand speech in noise (SiN). These individual differences have been reported to be associated with a range of auditory and cognitive abilities. The present study addresses the association between SiN processing and the individual susceptibility of short-term memory to auditory distraction (i.

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Background: CV-NCOV-005 was conducted to generate additional safety and immunogenicity data for the former CVnCoV SARS-CoV-2 mRNA vaccine candidate in healthcare workers (HCW).

Methods: Randomised, observer blinded, placebo-controlled, phase 3 trial performed at the University Medical Center Mainz, Germany. HCWs aged ≥18 years with no history of SARS-CoV-2 infection/positive serology were randomly assigned to receive two doses of CVnCoV, or two doses of placebo (0.

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Resonant noise amplification in a predator-prey model with quasi-discrete generations.

Sci Rep

July 2024

School of Physics and Astronomy, University of Edinburgh, James Clerk Maxwell Building, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, UK.

Article Synopsis
  • Predator-prey models can show resonance-like behavior, where random population fluctuations become amplified when their timing aligns with the system's natural oscillation frequency.
  • This study introduces a more realistic approach where organisms replicate quasi-synchronously, creating a narrower distribution of replication times compared to traditional models with random (Poissonian) replication.
  • The results indicate that when replication frequency matches the model's natural oscillatory frequency, the system experiences stronger population oscillations, leading to quicker instability and potential extinction of one species compared to the random replication model.
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Pandemic Preparedness - A Proposal for a Research Infrastructure and its Functionalities for a Resilient Health Research System.

Gesundheitswesen

October 2024

Zentrum für Evidenzbasierte Gesundheitsversorgung (ZEGV), Medizinische Fakultät und Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.

Während einer Pandemie muss Resilienz nicht nur als Eigenschaft des Gesundheitssystems, sondern auch des umgebenden Forschungsumfelds betrachtet werden. Um verlässliche, evidenzbasierte Empfehlungen aus der Universitätsmedizin an die Gesundheitspolitik und die Entscheidungsträger bereitstellen zu können, müssen wissenschaftliche Erkenntnisse schnell, integrativ und multidisziplinär generiert, synthetisiert und kommuniziert werden. Die Resilienz der öffentlichen Gesundheitssysteme und der Gesundheitsforschungssysteme sind somit eng verknüpft.

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Evolution of Natural Myocardial Shear Wave Behavior in Young Hearts: Determinant Factors and Reproducibility Analysis.

J Am Soc Echocardiogr

November 2024

Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; Department of Cardiovascular Diseases, University Hospitals Leuven, Leuven, Belgium. Electronic address:

Background: Myocardial diastolic function assessment in children by conventional echocardiography is challenging. High-frame rate echocardiography facilitates the assessment of myocardial stiffness, a key factor in diastolic function, by measuring the propagation velocities of myocardial shear waves (SWs). However, normal values of natural SWs in children are currently lacking.

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Article Synopsis
  • * The measurements utilized both semileptonic and hadronic decays of top quarks, along with events focused on single top quark production in the electroweak t channel.
  • * The combined result for the top quark mass is 172.52 GeV, with a reduced total uncertainty of 0.33 GeV, showcasing an improvement of 31% over previous measurements.
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Efficient integral screening techniques are essential for the investigation of extended molecular structures. This work presents a critical assessment of well-established approximate screening techniques and extends them for integrals over London atomic orbitals, which are required in the presence of strong, external magnetic fields. Through the examination of helium clusters in such extreme environments, we demonstrate that seemingly straightforward extensions of field-free screening techniques as proposed in the recent literature can lead to significant errors.

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Background: The Asthma Impairment and Risk Questionnaire (AIRQ), a 10-item, equally weighted, yes/no tool assessing symptom impairment and risk of exacerbations in patients with asthma aged ≥12 years, was developed and validated in a US patient population to evaluate varying levels of asthma control. This study aimed to validate the German language version of the AIRQ in patients aged ≥12 years with different levels of asthma control.

Methods: A cross-sectional, observational, multi-centre study comprising a single visit was conducted in multiple specialised asthma centres and general practices in Germany.

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Brain activity continuously fluctuates over time, even if the brain is in controlled (e.g., experimentally induced) states.

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SMM features of a large lanthanide family of butterfly CrIII2LnIII2 pivalate complexes (Ln = Gd, Tb, Dy, Ho, Er, Tm and Yb).

Dalton Trans

July 2024

Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.

In this work we report the synthesis, structural characterization and magnetic properties of a family of butterfly complexes {CrLn} with Ln = Tb (4), Ho (5), Er (6), Tm (7) and Yb (8), extending the family of previously reported isostructural compounds with Gd (1), Dy (2) and Y (3). As in 1 and 2, an anti-ferromagnetic Cr(III)-Ln(III) exchange interaction is found. For oblate ions 4 and 5, SMM behavior with a purely Orbach relaxation mechanism is observed with thermal barriers of 38 cm (4) and 32 cm (5).

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Female alternative reproductive tactics: diversity and drivers.

Trends Ecol Evol

October 2024

Institute of Ecology and Evolution, Baltzerstrasse 6, University of Bern, 3012 Bern, Switzerland. Electronic address:

It is often argued that anisogamy causes alternative reproductive tactics (ARTs) to be more common in males than females. We challenge this view by pointing out logical flaws in the argument. We then review recent work on the diversity of female ARTs, listing several understudied types such as solitary versus communal breeding and facultative parthenogenesis.

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Silicone is frequently used as a model system to investigate and tune wetting on soft materials. Silicone is biocompatible and shows excellent thermal, chemical, and UV stability. Moreover, the mechanical properties of the surface can be easily varied by several orders of magnitude in a controlled manner.

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The International Committee on Classification of Corneal Dystrophies (IC3D) was founded in 2005 to address difficulties arising from the outdated nomenclature for corneal dystrophies (CD) and to correct misconceptions in the literature. For each of the 22 CDs, a separate template was created to represent the current clinical, pathological and genetic knowledge of the disease. In addition, each template contains representative clinical photographs as well as light and electron microscopic images and, if available, confocal microscopic and coherence tomographic images of the respective CD.

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We investigate the effect of polydispersity on the properties of curved linear brushes in good solvent and for molten brushes. To this end, we extend the strong stretching theory for polydisperse brushes to curved geometries and investigate the polymer chain end profiles, bending moduli and other properties for experimentally relevant polymer chain length distributions of the Schulz-Zimm type. We also investigate the properties of end exclusion zones that may appear in convex geometries under certain conditions and show that their position in the brush can be engineered by careful selection of the polymer length distribution.

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Article Synopsis
  • Active fluids can create stable traveling bands that lead to unique transport behaviors and currents.
  • These bands produce a particle current that moves in a direction perpendicular to the band’s movement, similar to the Hall effect.
  • The study demonstrates that these bands transition to synchronized states under certain conditions and can be explained using a basic hydrodynamic theory that relates to soliton solutions.
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[Update on lupus nephritis].

Z Rheumatol

August 2024

Klinik für Rheumatologie und Hiller Forschungszentrum Rheumatologie, UKD, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Deutschland.

In addition to the butterfly rash, lupus nephritis is the most specific manifestation of systemic lupus erythematosus (SLE). The perspective on this organ manifestation has fundamentally changed as well as the manifestation of SLE itself 40 years after the first multicenter clinical study on lupus nephritis. Even if there is a faint glimpse of hope of a cure, there is still the fight against the problem of nonresponders and also the progressive loss of organ function.

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