5,291 results match your criteria: "University Berlin[Affiliation]"
Am J Sports Med
May 2024
The Steadman Clinic, Vail, Colorado, USA.
Background: Snapping scapula syndrome (SSS) is a rare condition that is oftentimes debilitating. For patients whose symptoms are resistant to nonoperative treatment, arthroscopic surgery may offer relief. Because of the rarity of SSS, reports of clinical outcomes after arthroscopic SSS surgery are primarily limited to small case series and short-term follow-up studies.
View Article and Find Full Text PDFACS Energy Lett
April 2024
The Electrochemical Energy, Catalysis, and Materials Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, 10623 Berlin, Germany.
Nonconductive porous polymer substrates, such as PTFE, have been pivotal in the fabrication of stable and high-performing gas diffusion electrodes (GDEs) for the reduction of CO/CO in small scale electrolyzers; however, the scale-up of polymer-based GDEs without performance penalties to technologically more relevant electrode sizes has remained elusive. This work reports on a new current collector concept that enables the scale-up of PTFE-based GDEs from 5 to 100 cm and beyond. The present approach builds on a multifunctional current collector concept that enables multipoint front-contacting of thin catalyst coatings, which mitigates performance losses even for high resistivity cathodes.
View Article and Find Full Text PDFNephrol Dial Transplant
November 2024
International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou, China.
Background: Activation of nuclear factor-kappa B (NF-κB) signalling is key in the pathogenesis of chronic kidney disease (CKD). However, a certain level of NF-κB activity is necessary to enable tissue repair.
Methods: The relationship between activated and inactivated NF-κB signaling and the pathogenesis of CKD was investigated using mouse models of NF-κB partial inactivation (mutating cysteine at position 59 of the sixth exon on the NF-κB gene into alanine) and activation (mutating cysteine at position 59 of the sixth exon on the NF-κB gene into serine).
J Interv Card Electrophysiol
August 2024
Department of Medicine, Division of Cardiology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA.
Rheumatol Int
July 2024
Division of Musculoskeletal and Dermatological Sciences, Centre for Musculoskeletal Research, School of Biological Sciences, The University of Manchester, Manchester, UK.
Anal Bioanal Chem
June 2024
GALAB Laboratories GmbH, Am Schleusengraben 7, 21029, Hamburg, Germany.
The analysis of almost holistic food profiles has developed considerably over the last years. This has also led to larger amounts of data and the ability to obtain more information about health-beneficial and adverse constituents in food than ever before. Especially in the field of proteomics, software is used for evaluation, and these do not provide specific approaches for unique monitoring questions.
View Article and Find Full Text PDFTrends Endocrinol Metab
September 2024
Institute for Experimental Endocrinology, Max Rubner Center, Charité University Berlin, Germany. Electronic address:
Selenium (Se) is an essential trace element, which is inserted as selenocysteine (Sec) into selenoproteins during biosynthesis, orchestrating their expression and activity. Se is associated with both beneficial and detrimental health effects; deficient supply or uncontrolled supplementation raises concerns. In particular, Se was associated with an increased incidence of type 2 diabetes (T2D) in a secondary analysis of a randomized controlled trial (RCT).
View Article and Find Full Text PDFJ Orthop Res
September 2024
Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Cornell Medicine, New York, USA.
Paraspinal muscle atrophy is gaining attention in spine surgery due to its link to back pain, spinal degeneration and worse postoperative outcomes. Electrical impedance myography (EIM) is a noninvasive diagnostic tool for muscle quality assessment, primarily utilized for patients with neuromuscular diseases. However, EIM's accuracy for paraspinal muscle assessment remains understudied.
View Article and Find Full Text PDFBackground: Growth hormone (GH) resistance is characterized by high GH levels but low levels of insulin-like growth factor-I (IGF-I) and growth hormone binding protein (GHBP) and, for patients with chronic disease, is associated with the development of cachexia.
Objectives: We investigated whether GH resistance is associated with changes in left ventricular (LV) mass (cardiac wasting) in patients with cancer.
Methods: We measured plasma IGF-I, GH, and GHBP in 159 women and 148 men with cancer (83% stage III/IV).
Front Hum Neurosci
March 2024
Department of Biomedical Engineering, Neurophotonics Center, Boston University, Boston, MA, United States.
Proc Natl Acad Sci U S A
April 2024
Institute for Mathematics, University of Potsdam, Potsdam 14476, Germany.
The self-assembly of spheres into geometric structures, under various theoretical conditions, offers valuable insights into complex self-assembly processes in soft systems. Previous studies have utilized pair potentials between spheres to assemble maximum contact clusters in simulations and experiments. The morphometric approach to solvation free energy that we utilize here goes beyond pair potentials; it is a geometry-based theory that incorporates a weighted combination of geometric measures over the solvent accessible surface for solute configurations in a solvent.
View Article and Find Full Text PDFACS Appl Mater Interfaces
April 2024
Institute for Physical Chemistry, Justus Liebig University Giessen, Giessen 35392, Germany.
Sodium all-solid-state batteries may become a novel storage technology overcoming the safety and energy density issues of (liquid-based) sodium ion batteries at low cost and good resource availability. However, compared to liquid electrolyte cells, contact issues and capacity losses due to interface reactions leading to high cell resistance are still a problem in solid-state batteries. In particular, sulfide-based electrolytes, which show very high ionic conductivity and good malleability, exhibit degradation reactions at the interface with electrode materials and carbon additives.
View Article and Find Full Text PDFMicrob Cell Fact
April 2024
Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China.
Surfactin is a cyclic hexalipopeptide compound, nonribosomal synthesized by representatives of the Bacillus subtilis species complex which includes B. subtilis group and its closely related species, such as B. subtilis subsp subtilis, B.
View Article and Find Full Text PDFElife
April 2024
Science of Intelligence Excellence Cluster, Technical University Berlin, Berlin, Germany.
In the unpredictable Anthropocene, a particularly pressing open question is how certain species invade urban environments. Sex-biased dispersal and learning arguably influence movement ecology, but their joint influence remains unexplored empirically, and might vary by space and time. We assayed reinforcement learning in wild-caught, temporarily captive core-, middle-, or edge-range great-tailed grackles-a bird species undergoing urban-tracking rapid range expansion, led by dispersing males.
View Article and Find Full Text PDFSci Total Environ
May 2024
Institute of Geography, Humboldt-University Berlin, Unter den Linden 6, 10099 Berlin, Germany; Department of Computational Landscape Ecology, Helmholtz Centre for Environmental Research - UFZ, 04318 Leipzig, Germany. Electronic address:
Cultural ecosystem services (CES) and disservices shape landscape planning policy to a huge extent. We focus on the benefits and disbenefits associated with CES. The study aimed to explore the co-occurrence of the benefits and disbenefits associated with CES as well as the relationship between spatial and landscape characteristics and specific benefits and disbenefits.
View Article and Find Full Text PDFMolecules
March 2024
GALAB Laboratories GmbH, Am Schleusengraben 7, 21029 Hamburg, Germany.
Supplementing fish oil is one of the strategies to reduce the risk of cardiovascular disease, the leading cause of death around the world. Contradictorily, fish oil may also contain trimethylamine--oxide, a recently emerged risk factor for cardiovascular disease, as well as one of its precursors, trimethylamine. A method suitable for routine quantification of trimethylamine--oxide and trimethylamine in fish oil with a quick and easy liquid extraction without derivatization has been developed.
View Article and Find Full Text PDFMedicina (Kaunas)
February 2024
Department of Oral, Craniomaxillofacial and Plastic Surgery, University Hospital Ruppin-Brandenburg, Faculty of Medicine, Medical University Brandenburg, D-16816 Neuruppin, Germany.
While the World Health Organization (WHO) has de-escalated coronavirus disease 2019 (COVID-19) from a global health emergency, ongoing discussions persist as new viral variants. This article aimed to consolidate German recommendations and international research to offer health care providers (HCPs) a comprehensive guide on COVID-19 boosters in 2024. The review outlines key recommendations from the German Robert Koch Institute.
View Article and Find Full Text PDFSci Rep
March 2024
Department of Comparative Cultural Psychology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Human cognition is incredibly flexible, allowing us to thrive within diverse environments. However, humans also tend to stick to familiar strategies, even when there are better solutions available. How do we exhibit flexibility in some contexts, yet inflexibility in others? The constrained flexibility framework (CFF) proposes that cognitive flexibility is shaped by variability, predictability, and harshness within decision-making environments.
View Article and Find Full Text PDFNat Commun
March 2024
Center for Adaptive Rationality, Max Planck Institute for Human Development, Berlin, Germany.
Collective dynamics emerge from countless individual decisions. Yet, we poorly understand the processes governing dynamically-interacting individuals in human collectives under realistic conditions. We present a naturalistic immersive-reality experiment where groups of participants searched for rewards in different environments, studying how individuals weigh personal and social information and how this shapes individual and collective outcomes.
View Article and Find Full Text PDFEcol Evol
March 2024
NABU (The Nature and Biodiversity Conservation Union) Berlin Germany.
Five years after a German study on insect biomass described a multi-decade decline in nature protected habitats, the DINA (Diversity of Insects in Nature protected Areas) project has investigated the status of insects in 21 selected nature reserves across Germany in the years 2020 and 2021. We used the same methods and protocols for trapping and measuring the biomass of flying insects as in the earlier study. Across two vegetation periods, we accumulated a comprehensive data set of 1621 data points of two-week emptying intervals to evaluate the insect biomass along gradients from arable land into nature reserves through transects of Malaise traps.
View Article and Find Full Text PDFIt is a central tenet of attachment theory that individual differences in attachment representations organize behavior during social interactions. Secure attachment representations also facilitate behavioral synchrony, a key component of adaptive parent-child interactions. Yet, the dynamic neural processes underlying these interactions and the potential role of attachment representations remain largely unknown.
View Article and Find Full Text PDFJ Am Chem Soc
April 2024
Department of Physics, Free University Berlin, Arnimallee 14, D-14195 Berlin, Germany.
Tuning the photophysical properties of iron-based transition-metal complexes is crucial for their employment as photosensitizers in solar energy conversion. For the optimization of these new complexes, a detailed understanding of the excited-state deactivation paths is necessary. Here, we report femtosecond transient mid-IR spectroscopy data on a recently developed octahedral ligand-field enhancing [Fe(dqp)] () complex with dqp = 2,6-diquinolylpyridine and prototypical [Fe(bpy)] ().
View Article and Find Full Text PDFAngew Chem Int Ed Engl
June 2024
Macromolecular Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany.
Although sulfurated polymers promise unique properties, their controlled synthesis, particularly when it comes to complex and functional architectures, remains challenging. Here, we show that the copolymerization of oxetane and phenyl isothiocyanate selectively yields polythioimidocarbonates as a new class of sulfur containing polymers, with narrow molecular weight distributions (M=5-80 kg/mol with Đ≤1.2; M=124 kg/mol) and high melting points of up to 181 °C.
View Article and Find Full Text PDFJ Clin Exp Neuropsychol
April 2024
Clinic for Cognitive Neurology, University Hospital Leipzig, Leipzig, Germany.
Background: Neglect can be a long-term consequence of chronic stroke that can impede an individual's ability to perform daily activities, but chronic and discrete forms can be difficult to detect. We developed and evaluated the "immersive virtual road-crossing task" (iVRoad) to identify and quantify discrete neglect symptoms in chronic stroke patients.
Method: The iVRoad task requires crossing virtual intersections and placing a letter in a mailbox placed either on the left or right.
Xenotransplantation
March 2024
Institute of Virology, Free University Berlin, Berlin, Germany.