Publications by authors named "J Scheffer"

Introduction: Providing care for a loved one with dementia can engender intense emotions that contribute to symptoms of anxiety and depression. Caregivers often attempt to regulate their emotions using strategies like cognitive reappraisal (CR; changing how they think about the situation) or expressive suppression (ES; hiding their emotions). However, men and women caregivers may differ in their use of these strategies.

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  • The study explores the crystal and magnetic properties of the van der Waals antiferromagnet α-RuCl using x-ray and neutron diffraction techniques, identifying its crystal structure as monoclinic (C2/m) at room temperature.
  • As the temperature decreases, a phase transition occurs, forming a rhombohedral (R3-) structure with an isotropic honeycomb lattice and three-fold rotational symmetry.
  • Below a critical temperature of around 6-6.6K, a zigzag-type antiferromagnetic order emerges, exhibiting characteristics tied to the Ising model and revealing complex magnetic behaviors influenced by Kitaev spin interactions.
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Objective: The aim of the present study was to evaluate clinical and embryo parameters to predict embryo ploidy.

Methods: In this retrospective analysis, we studied 838 biopsied day-5 blastocysts from 219 patients in the period from May 2021 to July 2022. All embryos were morphologically classified before biopsy and were divided into two groups according to genetic test results.

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  • The study aimed to measure energy availability (EA) in elite female rowers and its link to bone mineral density (BMD), using the LEAF-Q and BEDA-Q questionnaires to identify low EA.
  • A total of 25 athletes participated, with results showing a 64% prevalence of low EA (below 30 kCal * kg * FFM * day) and a normal average BMD Z-score, indicating bone health.
  • Higher BEDA-Q scores were found in rowers with low EA compared to those with normal EA, while no differences were noted using the LEAF-Q, suggesting the latter may not effectively distinguish EA levels.
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Dynamic metabolic engineering is a strategy to switch key metabolic pathways in microbial cell factories from biomass generation to accumulation of target products. Here, we demonstrate that optogenetic intervention in the cell cycle of budding yeast can be used to increase production of valuable chemicals, such as the terpenoid β-carotene or the nucleoside analog cordycepin. We achieved optogenetic cell-cycle arrest in the G2/M phase by controlling activity of the ubiquitin-proteasome system hub Cdc48.

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