2,619 results match your criteria: "Humboldt University of Berlin.[Affiliation]"
Cells
January 2025
Department of Hepatology and Gastroenterology, Charité University Medicine Berlin, 13353 Berlin, Germany.
Neuroendocrine neoplasms (NENs) are a diverse group originating from endocrine cells/their precursors in pancreas, small intestine, or lung. The key serum marker is chromogranin A (CgA). While commonly elevated in patients with NEN, its prognostic value is still under discussion.
View Article and Find Full Text PDFNat Metab
January 2025
Division of Tumor Metabolism and Microenvironment, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Increased glycolytic flux is a hallmark of cancer; however, an increasing body of evidence indicates that glycolytic ATP production may be dispensable in cancer, as metabolic plasticity allows cancer cells to readily adapt to disruption of glycolysis by increasing ATP production via oxidative phosphorylation. Using functional genomic screening, we show here that liver cancer cells show a unique sensitivity toward aldolase A (ALDOA) depletion. Targeting glycolysis by disrupting the catalytic activity of ALDOA led to severe energy stress and cell cycle arrest in murine and human hepatocellular carcinoma cell lines.
View Article and Find Full Text PDFScience
January 2025
Instituto de Investigaciones Forestales de la Amazonía, Universidad Autónoma del Beni José Ballivián, Riberalta, Bolivia.
Sci Rep
January 2025
Department of Orthopaedic, South China Hospital of Shenzhen University, Shenzhen, 518116, Guangdong, China.
Before patients begin out-of-bed exercises following internal fixation surgery for acetabular fractures, turning over in bed serves as a crucial intervention to mitigate complications associated with prolonged bed rest. However, data on the safety of this maneuver post-surgery are limited, and the biomechanical evidence remains unclear. This study aims to introduce a novel loading protocol designed to preliminarily simulate the action of turning over in bed and to compare the biomechanical properties of two fixation methods for acetabular fractures under this new protocol.
View Article and Find Full Text PDFBehav Brain Sci
January 2025
Winckelmann Institute, Humboldt University of Berlin, Berlin,
Stibbard-Hawkes presents a much-needed case for distinguishing between different types of evidence for cognition in past cultures. However, he does not outline an applicable approach for moving forward in making claims about the cognition of past cultures. We present an initial model for calibrating both absolute and comparative claims about past cultures' cognition and other traits.
View Article and Find Full Text PDFNat Commun
January 2025
Molecular Genetics of Eukaryotes, University of Kaiserslautern, Kaiserslautern, Germany.
Molecular chaperones are essential throughout a protein's life and act already during protein synthesis. Bacteria and chloroplasts of plant cells share the ribosome-associated chaperone trigger factor (Tig1 in plastids), facilitating maturation of emerging nascent polypeptides. While typical trigger factor chaperones employ three domains for their task, the here described truncated form, Tig2, contains just the ribosome binding domain.
View Article and Find Full Text PDFJ Pers Soc Psychol
January 2025
Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine.
People who are higher in conscientiousness, extraversion, and agreeableness and lower in neuroticism tend to live longer. The present research tested the hypothesis that personality trait change in middle and older adulthood would also be associated with mortality risk, above and beyond personality trait level. Personality trait change may causally influence mortality risk through corresponding changes in health behaviors, social processes, and stress experience.
View Article and Find Full Text PDFJ Pers Soc Psychol
January 2025
Department of Psychology, University of Zurich.
Self-esteem and depressive symptoms are important predictors of a range of societally relevant outcomes and are theorized to influence each other reciprocally over time. However, existing research offers only a limited understanding of how their dynamics unfold across different timescales. Using three data sets with different temporal resolutions, we aimed to advance our understanding of the temporal unfolding of the reciprocal dynamics between self-esteem and depressive symptoms.
View Article and Find Full Text PDFMolecules
December 2024
National Institute for Research and Development of Isotopic and Molecular Technologies, Str. Donat 67-103, 400293 Cluj-Napoca, Romania.
The recently developed phenoplast-related polymer, poly(benzofuran--arylacetic acid), presents a versatile molecular structure containing lactone and carboxylic acid functionalities that offer significant flexibility in creating cured materials with tailored properties for diverse applications, wherein also the thermal conductivity is an important factor. This study analyses the possibility of forming amide moieties of poly(benzofuran--arylacetic acid) with diamines resulting in cross-linked products in order to control its thermal properties. The cross-linking process is achieved by utilizing three distinct diamines, 1,6-diaminohexane, -xylylenediamine, and 4,7,10-trioxa-1,13-tridecanediamine, each possessing different degrees of polarity, flexibility, and reactivity.
View Article and Find Full Text PDFAnn N Y Acad Sci
January 2025
Department of Infectious Diseases and Public Health, City University of Hong Kong, Kowloon, Hong Kong.
Among hornbill birds, the critically endangered helmeted hornbill (Rhinoplax vigil) is notable for its casque (a bulbous beak protrusion) being filled with trabeculae and fronted by a very thick keratin layer. Casque function is debated but appears central to aerial jousting, where birds (typically males) collide casques at high speeds in a mid-flight display that is audible for more than 100 m. We characterized the structural relationship between the skull and casque anatomy using X-ray microtomography and quantitative trabecular network analysis to examine how the casque sustains extreme impact.
View Article and Find Full Text PDFFront Plant Sci
December 2024
Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Piacenza, Italy.
The impact of combined heat and drought stress was investigated in and compared to individual stresses to reveal additive effects and interactions. A combination of plant metabolomics and root and rhizosphere bacterial metabarcoding were used to unravel effects at the plant holobiont level. Hierarchical cluster analysis of metabolomics signatures pointed out two main clusters, one including heat and combined heat and drought, and the second cluster that included the control and drought treatments.
View Article and Find Full Text PDFFront Sociol
December 2024
Department of Social Sciences, Humboldt University of Berlin, Berlin, Germany.
This paper advances the theory of Configurational Field Analysis (CFA) as a reconfiguration of Pierre Bourdieu's field theory, aiming to address the limitations of Global Field Theory in analyzing the complexities of global and transnational phenomena. While the concept of the Global Field extended Bourdieu's ideas to transnational and global arenas, it has been critiqued for its structural determinism, Eurocentrism, and its inability to fully capture the fluid, indeterminate, and contingent nature of global social dynamics. In response, this paper introduces social configurations as dynamic, relational constructs that emerge from specific historical and contextual conditions, rather than as fixed and universal structures.
View Article and Find Full Text PDFBehav Brain Sci
December 2024
Department of Experimental and Applied Psychology, VU Amsterdam, Amsterdam, Netherlands, and University of Cologne, Germany; www.paulvanlange.com.
Women are often viewed as more romantic than men, and romantic relationships are assumed to be more central to the lives of women than to those of men. Despite the prevalence of these beliefs, some recent research paints a different picture. Using principles and insights based on the interdisciplinary literature on mixed-gender relationships, we advance a set of four propositions relevant to differences between men and women and their romantic relationships.
View Article and Find Full Text PDFEnviron Monit Assess
December 2024
Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany.
Soil conditions of croplands are a frequent topic of scientific research. In contrast, less is known about large-scale commercial plantations of perennial crops such as oil palm. Oil palm is a globally important tropical commodity crop which contributes to both food and energy security due to its exceptional productivity.
View Article and Find Full Text PDFQuant Imaging Med Surg
December 2024
Department of Spine Surgery, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
Background: Sonodynamic therapy (SDT) is a non-invasive cancer treatment technique stemming from photodynamic therapy (PDT) and has garnered escalated interest among researchers in recent years. Numerous aspects of cancer SDT remain contentious, and the global research trajectory within this domain remains insufficiently explored. This study seeks to delineate the comprehensive knowledge framework, developmental trends, and pivotal research focal points concerning cancer SDT.
View Article and Find Full Text PDFSci Total Environ
January 2025
Professorship for Land Surface-Atmosphere Interactions, Technical University of Munich, Hans-Carl-v.-Carlowitz-Platz 2, Freising 85354, Germany.
Germany experienced extreme drought periods in 2018 and 2022, which significantly affected forests. These drought periods were natural experiments, providing valuable insights into how different tree species respond to drought. The quantification of species-specific drought responses may help to identify the most climate-change-resilient tree species, thereby informing effective forest regeneration strategies.
View Article and Find Full Text PDFPsychol Aging
December 2024
Department of Psychology, Arizona State University.
According to the Flynn effect, performance on cognitive ability tests has improved over the past decades. However, we know very little about whether such historical improvements generalize to middle-aged adults (aged 45-65) and differ across nations. We used harmonized data on episodic memory from nationally representative longitudinal panel surveys across a total of 16 countries (United States, Mexico, China, England, and countries in Continental, Mediterranean, and Nordic Europe).
View Article and Find Full Text PDFBehav Res Methods
December 2024
Move'N'Brains Lab, Department of Psychology, University of Turin, Via Verdi, 10, 10124, Turin, Italy.
Aside from some common movement regularities, significant inter-individual and inter-trial variation within the same individual exists in motor system output. However, there is still a lack of a robust and widely adopted solution for quantifying the degree of similarity between movements. We therefore developed an innovative approach based on the Procrustes transformation to compute 'motor distance' between pairs of kinematic data.
View Article and Find Full Text PDFNanoscale
January 2025
Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia.
This study focuses on the modulatory effects of gold nanoclusters with 25 gold atoms and 18 acetyl cysteines (AuAcCys) in human microglia, human iPSC-derived neurons and SH-SY5Y differentiated human neuronal cells. The combination of chemical, biological, and computational methods shows the well-retained viability of these human cells treated with AuAcCys, interactions between AuAcCys and transcription factor TFEB (computational approach), interactions between TFEB and HMGB1 (proximity ligation assay and molecular modeling using AlphaFold), modulation of the abundance and location of acHMGB1 by AuAcCys (immunocytochemistry), and the reduction of ROS in cells treated with AuAcCys (CellROX live imaging). These novel findings in human neural cells, particularly neurons, encourage further studies in experimental animal models of neurological disorders and/or human organoids to exploit the unique structural and photophysical properties of gold nanoclusters and to better understand their ability to modulate molecular mechanisms in human cells.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
December 2024
In situ Structural Biology, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin 13125, Germany.
Synaptic vesicles (SVs) store and transport neurotransmitters to the presynaptic active zone for release by exocytosis. After release, SV proteins and excess membrane are recycled via endocytosis, and new SVs can be formed in a clathrin-dependent manner. This process maintains complex molecular composition of SVs through multiple recycling rounds.
View Article and Find Full Text PDFFront Psychiatry
November 2024
Berlin School of Mind and Brain, Humboldt University of Berlin, Berlin, Baden-Württemberg, Germany.
Int J Adolesc Med Health
December 2024
Humboldt University of Berlin, Berlin, Germany.
Objectives: Problematic gaming behavior has been an issue in many countries, raising the need for assessment tools. The Game Addiction Scale for Adolescents (GASA) by Lemmens et al. is widely used for assessing game addiction and has been adopted for use in various countries.
View Article and Find Full Text PDFLancet Planet Health
December 2024
Barcelona Supercomputing Center, Barcelona, Spain; Centre on Climate Change and Planetary Health and Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK; Catalan Institution for Research and Advanced Studies, Barcelona, Spain.
J Am Chem Soc
November 2024
Department of Chemistry, Humboldt University of Berlin, Berlin 12489, Germany.
The photoisomerization rate of -stilbene (tS) and trans-trans-diphenylbutadiene (ttD) is studied in solution and compared to that in jet/gas. Rice-Ramsperger-Kassel-Marcus (RRKM) theory correctly predicts the tS rate in jet, = exp(-/) with = 1398 cm, and = 1.8 ps corresponding to frequency ν = 60 cm of the reactive mode, being the molecular temperature.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
November 2024
Center for Adaptive Rationality, Max Planck Institute for Human Development, Berlin 14195, Germany.
Nearly five billion people use and receive news through social media and there is widespread concern about the negative consequences of misinformation on social media (e.g., election interference, vaccine hesitancy).
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