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Partially Bonded Crystals: A Pathway to Porosity and Polymorphism.
ACS Nano
January 2025
Institut für Theoretische Physik, TU Wien, Wiedner Hauptstraße 8-10, A-1040 Wien, Austria.
In recent years, experimental and theoretical investigations have shown that anisotropic colloids can self-organize into ordered porous monolayers, where the interplay of localized bonding sites, so-called patches, with the particle's shape is responsible for driving the systems away from close-packing and toward porosity. Until now it has been assumed that patchy particles have to be fully bonded with their neighboring particles for crystals to form, and that, if full bonding cannot be achieved due to the choice of patch placement, disordered assemblies will form instead. In contrast, we show that by deliberately displacing the patches such that full bonding is disfavored, a different route to porous crystalline monolayers emerges, where geometric frustration and partial bonding are decisive process.
View Article and Find Full Text PDFNetwork segregation during episodic memory shows age-invariant relations with memory performance from 7 to 82 years.
Neurobiol Aging
January 2025
Center for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo 0317, Norway; Department of Radiology and Nuclear Medicine, University of Oslo, Oslo 0317, Norway.
Lower episodic memory capability, as seen in development and aging compared with younger adulthood, may partly depend on lower brain network segregation. Here, our objective was twofold: (1) test this hypothesis using within- and between-network functional connectivity (FC) during episodic memory encoding and retrieval, in two independent samples (n = 734, age 7-82 years). (2) Assess associations with age and the ability to predict memory comparing task-general FC and memory-modulated FC.
View Article and Find Full Text PDFPhotic drive response in people with epilepsy: Exploring the interaction with background alpha rhythm.
Vision Res
January 2025
Eccles Institute of Neuroscience, John Curtin School of Medical Research, Australian National University, Acton, ACT, Australia. Electronic address:
Photic drive responses (PDRs) are used to explore cortical hyperexcitability. We quantified PDRs and interactions with the alpha rhythm in people with epilepsy (PwE). Fifteen PwE (mean age ± SD 47.
View Article and Find Full Text PDFEvaluation of Global South's efficiency at the Summer Olympics.
PLoS One
January 2025
Chair of Sports Economics and Health Economics, Friedrich Schiller University Jena, Jena, Germany.
States differ significantly in international sports competitions in how they use the resources they have and whether they do so in an efficient manner. In this paper, we investigate the efficiency of the nations from the so-called "Global South", in total 52 states, during the 2000-2024 Summer Olympics. By doing this, our paper is the first using the Bayesian stochastic frontier analysis for exploring the performance of the states of the Global South.
View Article and Find Full Text PDFLaparoscopic treatment of perineal hernia after previous abdominal perineal rectal resection due to cancer. Case report.
Wiad Lek
January 2025
DEPARTMENT OF GENERAL, ONCOLOGICAL AND DIGESTIVE TRACT SURGERY, MEDICAL CENTRE OF POSTGRADUATE EDUCATION, ORŁOWSKI HOSPITAL, MEDICAL CENTRE OF POSTGRADUATE EDUCATION, WARSAW, POLAND.
The aim of this study is to present a case of laparoscopic treatment of perineal hernia in a patient after abdominoperineal resection od the rectum. We present the case of a 63-year-old woman who was operated on laparoscopically with a mesh sewn in at the level of the sacrum, iliac vessels and pubic symphysis. And covered with a peritoneal flap above the urinary bladder.
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