1,971 results match your criteria: "National Centre for Scientific Research "Demokritos".[Affiliation]"
Phys Rev Lett
December 2024
CERN, Geneva, Switzerland.
High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.
View Article and Find Full Text PDFACS Nano
January 2025
Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
Perovskite nanocrystals (PNCs) are promising active materials because of their outstanding optoelectronic properties, which are finely tunable via size and shape. However, previous synthetic methods such as hot-injection and ligand-assisted reprecipitation require a high synthesis temperature or provide limited access to homogeneous PNCs, leading to the present lack of commercial value and real-world applications of PNCs. Here, we report a room-temperature approach to synthesize PNCs within a liquid crystalline antisolvent, enabling access to PNCs with a precisely defined size and shape and with reduced surface defects.
View Article and Find Full Text PDFData Brief
December 2024
Universidad Politécnica de Madrid, Spain.
This dataset comprises information about 1242 lung cancer patients collected by the Medical Oncology Department of the Puerta de Hierro University Hospital of Majadahonda in Madrid, Spain. It includes information about cancer diagnosis and treatment, as well as personal and medical data recorded during anamneses. The dataset could assist in data analysis with the aim of discovering relationships between the applied treatment(s), the evolution of the disease and the associated adverse effects.
View Article and Find Full Text PDFNat Aging
December 2024
Molecular Carcinogenesis Group, Department of Histology and Embryology, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
The emerging field of senolytics is centered on eliminating senescent cells to block their contribution to the progression of age-related diseases, including cancer, and to facilitate healthy aging. Enhancing the selectivity of senolytic treatments toward senescent cells stands to reduce the adverse effects associated with existing senolytic interventions. Taking advantage of lipofuscin accumulation in senescent cells, we describe here the development of a highly efficient senolytic platform consisting of a lipofuscin-binding domain scaffold, which can be conjugated with a senolytic drug via an ester bond.
View Article and Find Full Text PDFJ Intell
November 2024
Department of Special Education, University of Thessaly, 38221 Volos, Greece.
Autism spectrum disorder (ASD) has a significant impact on a person's social, emotional, and communication functioning. According to research, individualized instruction can significantly improve these deficits. One of the most successful methods of achieving this outcome is by gaming platforms that provide serious games (SGs).
View Article and Find Full Text PDFAging Cell
December 2024
Laboratory of Cell Proliferation and Ageing, Institute of Biosciences and Applications, National Centre for Scientific Research "Demokritos", Athens, Greece.
Ultraviolet B (UVB) radiation is a major contributor to skin photoaging. Although mainly absorbed by the epidermis, UVB photons managing to penetrate the upper dermis affect human dermal fibroblasts (HDFs), leading, among others, to the accumulation of senescent cells. In vitro studies have shown that repeated exposures to subcytotoxic UVB radiation doses provoke HDFs' premature senescence shortly after the end of the treatment period.
View Article and Find Full Text PDFACS Med Chem Lett
December 2024
National Center for Scientific Research "Demokritos", Agia Paraskevi, Attiki 15341, Greece.
Endoplasmic reticulum aminopeptidase 1 (ERAP1) cleaves the -terminal amino acids of peptides, which can then bind onto major histocompatibility class I (MHC-I) molecules for presentation onto the cell surface, driving the activation of adaptive immune responses. In cancer, overtrimming of mature antigenic peptides can reduce cytotoxic T-cell responses, and ERAP1 can generate self-antigenic peptides which contribute to autoimmune cellular responses. Therefore, modulation of ERAP1 activity has potential therapeutic indications for cancer immunotherapy and in autoimmune disease.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Section of Condensed Matter Physics, Department of Physics, National and Kapodistrian University of Athens, University Campus, 15784 Athens, Greece.
The rational design of photonic crystal photocatalysts has attracted significant interest in order to improve their light harvesting and photocatalytic performances. In this work, an advanced approach to enhance slow light propagation and visible light photocatalysis is demonstrated for the first time by integrating a planar defect into CoO-TiO inverse opals. Trilayer photonic crystal films were fabricated through the successive deposition of an inverse opal TiO underlayer, a thin titania interlayer, and a photonic top layer, whose visible light activation was implemented through surface modification with CoO nanoscale complexes.
View Article and Find Full Text PDFMaterials (Basel)
November 2024
Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research Demokritos, Patr. Gregoriou E & 27 Neapoleos Street, 15341 Agia Paraskevi, Greece.
This study explores the layer-by-layer (LBL) modification of polyacrylonitrile (PAN) hollow fibers for effective Mg/Li separation. It employs an LBL method of surface modification using polyelectrolytes, specifically aiming to enhance ion selectivity and improve the efficiency of lithium extraction from brines or lithium battery wastes, which is critical for battery recycling and other industrial applications. The modification process involves coating the hydrolyzed PAN fibers with alternating layers of positively charged polyelectrolytes, such as poly(allylamine hydrochloride) (PAH), polyethyleneimine (PEI), or poly(diallyldimethylammonium chloride) (PDADMAC) and negatively charged polyelectrolytes, such as poly(styrene sulfonate) (PSS), to form polyelectrolyte multilayers (PEMs).
View Article and Find Full Text PDFFront Med (Lausanne)
November 2024
Department of Computer Science, University of Crete, Heraklion, Greece.
Digital innovation can significantly enhance public health services, environmental sustainability, and social welfare. To this end, the European Digital Innovation Hub (EDIH) initiative was funded by the European Commission and national governments aiming to facilitate the digital transformation on various domains (including health) via the setup of relevant ecosystems consisting of academic institutions, research centres, start-ups, small and medium-sized enterprises, larger companies, public organizations, technology transfer offices, innovation clusters, and financial institutions. The ongoing goal of the EDIHs initiative is to bridge the gap between high-tech research taking place in universities and research centres and its deployment in real-world conditions by fostering innovation ecosystems.
View Article and Find Full Text PDFEnviron Int
December 2024
Institute of Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain. Electronic address:
Carbonaceous aerosols (CA), composed of black carbon (BC) and organic matter (OM), significantly impact the climate. Light absorption properties of CA, particularly of BC and brown carbon (BrC), are crucial due to their contribution to global and regional warming. We present the absorption properties of BC (b) and BrC (b) inferred using Aethalometer data from 44 European sites covering different environments (traffic (TR), urban (UB), suburban (SUB), regional background (RB) and mountain (M)).
View Article and Find Full Text PDFHardwareX
September 2024
Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Aghia Paraskevi, Athens 15341, Greece.
Spin coating stands out as the most employed thin-film deposition technique across a variety of scientific fields. Particularly in the past two decades, spin coaters have become increasingly popular due to the emergence of solution-processed semiconductors such as quantum dots and perovskites. However, acquiring commercial spin coaters from reputable suppliers remains a significant financial burden for many laboratories, particularly for smaller research or educational facilities.
View Article and Find Full Text PDFIntegr Mater Manuf Innov
April 2024
Center for Bits and Atoms, Massachusetts Institute of Technology, Cambridge, MA 02143 USA.
To describe a new method for the automatic generation of process parameters for fused filament fabrication (FFF) across varying machines and materials. We use an instrumented extruder to fit a function that maps nozzle pressures across varying flow rates and temperatures for a given machine and material configuration. We then develop a method to extract real parameters for flow rate and temperature using relative pressures and temperature offsets.
View Article and Find Full Text PDFEur J Pain
January 2025
UCD School of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland.
Background: Pain is the leading cause of disability and reduced quality of life worldwide. Despite the increasing burden for patients and healthcare systems, pain research remains underfunded and under focused. Having stakeholders identify and prioritize areas that need urgent attention in the field will help focus funding topics, reduce 'research waste', improve the effectiveness of pain research and therapy and promote the uptake of research evidence.
View Article and Find Full Text PDFEur Phys J C Part Fields
December 2024
Cureus
November 2024
First Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens, Alexandra Hospital, Athens, GRC.
J Natl Cancer Inst
November 2024
Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
The first search for soft unclustered energy patterns (SUEPs) is performed using an integrated luminosity of 138 fb^{-1} of proton-proton collision data at sqrt[s]=13 TeV, collected in 2016-2018 by the CMS detector at the LHC. Such SUEPs are predicted by hidden valley models with a new, confining force with a large 't Hooft coupling. In events with boosted topologies, selected by high-threshold hadronic triggers, the multiplicity and sphericity of clustered tracks are used to reject the background from standard model quantum chromodynamics.
View Article and Find Full Text PDFACS Nano
December 2024
Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14850, United States.
We report a family of carbon sorbents synthesized by integrating hypergolics with activation reactions on a templated substrate. The materials design leads to nanoporous carbons with a BET area of 4800 m g with an impressive total pore volume of 2.7 cm g.
View Article and Find Full Text PDFbioRxiv
November 2024
Dept. of Anatomy and Neurobiology, Boston University Chobanian and Avedisian School of Medicine, Boston, MA.
The RNA binding protein TIA1 is known to regulate stress responses. Here we show that TIA1 plays a much broader role in inflammatory cells, being required for the microglial sensome. We crossed TIA1 cKO mice (using a CX3CR1 driven cre element) to PS19 MAPT P301S tauopathy mice.
View Article and Find Full Text PDFSci Rep
November 2024
Institute of Nanoscience and Nanotechnology, National Center for Scientific Research 'Demokritos', AgiaParaskevi 15341, Athens, Greece.
Eur J Clin Microbiol Infect Dis
November 2024
Laboratory of Clinical Microbiology, School of Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Background: Studies link multidrug-resistant organism (MDRO) rectal colonization to increased infection risk, data from Greece, a country with high rates of MDRO, are limited.
Methods: We assessed bloodstream infection (BSI) risk following rectal colonization by MDROs across three Greek hospitals (2019-2022).
Results: Of 4,370 inpatients, 31.
Environ Int
December 2024
Institute of Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain. Electronic address:
There is a body of evidence that ultrafine particles (UFP, those with diameters ≤ 100 nm) might have significant impacts on health. Accordingly, identifying sources of UFP is essential to develop abatement policies. This study focuses on urban Europe, and aims at identifying sources and quantifying their contributions to particle number size distribution (PNSD) using receptor modelling (Positive Matrix Factorization, PMF), and evaluating long-term trends of these source contributions using the non-parametric Theil-Sen's method.
View Article and Find Full Text PDFACS Med Chem Lett
November 2024
Radiochemical Studies Laboratory, INRASTES, N.C.S.R. "Demokritos", Agia Paraskevi Attikis, 15310 Athens, Greece.
Prostate-specific membrane antigen (PSMA) and gastrin-releasing peptide receptor (GRPR) have been used for diagnostic molecular imaging/therapy of prostate cancer (PCa). To address tumor heterogeneity, we synthesized and evaluated a bispecific PSMA/GRPR ligand () combining PSMA-617 () and the GRPR antagonist RM2 () with the radiometal chelator DOTA. was radiolabeled with Ga ([Ga]Ga-) and Lu ([Lu]Lu-).
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