6,846 results match your criteria: "University of Rome-La Sapienza[Affiliation]"

This work illustrates a physico-chemical study of the structural, dynamic, and transport properties of electrolytes made of LiTFSI solutions in sulphoxide and sulphone solvent mixtures. Experimental measurements, by Raman and NMR spectroscopies, as well as electrochemical impedance spectroscopy, reveal the formation of a variety of ionic aggregates depending on the solvent composition that significantly affect the ion mobility and conductivity of the electrolyte. Mixtures containing tetrahydrothiophene-1-oxide exhibit a larger ion mobility due to a rapid exchange mechanism between solvent molecules, whereas the use of tetramethylene sulphone favors the formation of ionic aggregates due to the strong dipolar interactions between solvent molecules.

View Article and Find Full Text PDF

The study examines the chemical composition and antimicrobial properties of petroleum ether and hydro-methanolic extracts of Achillea santolina(A. santolina)  from Algeria. Chemical profiling was performed using High-Performance Liquid Chromatography with Diode Array Detection (HPLC-DAD) for the hydro-methanolic extract and Gas Chromatography-Mass Spectrometry (GC-MS) for the petroleum ether extract.

View Article and Find Full Text PDF

Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterized by differences in social communication and repetitive behaviors, often associated with atypical visual attention patterns. In this paper, the Gaze-Based Autism Classifier (GBAC) is proposed, which is a Deep Neural Network model that leverages both data distillation and data attribution techniques to enhance ASD classification accuracy and explainability. Using data sampled by eye tracking sensors, the model identifies unique gaze behaviors linked to ASD and applies an explainability technique called TracIn for data attribution by computing self-influence scores to filter out noisy or anomalous training samples.

View Article and Find Full Text PDF

The impact of smoking in arthroscopic surgery for femoroacetabolar impingement (FAI) is controversial. This systematic review updates and discusses current evidence on the influence of cigarette smoking on the outcome of arthroscopic management of FAI. The outcomes of interest were to compare patient-reported outcome measures (PROMs) and complications.

View Article and Find Full Text PDF

Background: Malaria remains a significant public health challenge in Cameroon, particularly affecting children under 5 years of age. Despite these efforts, its prevalence persists, highlighting the need for comprehensive epidemiological studies to guide interventions.

Methods: A cross-sectional study was conducted in five randomly selected health areas across five regions of Cameroon.

View Article and Find Full Text PDF

Intrinsic and environmental drivers of pairwise cohesion in wild Canis social groups.

Ecology

December 2024

Wildlife Research and Monitoring Section, Ministry of Natural Resources and Forestry, Peterborough, Ontario, Canada.

Animals within social groups respond to costs and benefits of sociality by adjusting the proportion of time they spend in close proximity to other individuals in the group (cohesion). Variation in cohesion between individuals, in turn, shapes important group-level processes such as subgroup formation and fission-fusion dynamics. Although critical to animal sociality, a comprehensive understanding of the factors influencing cohesion remains a gap in our knowledge of cooperative behavior in animals.

View Article and Find Full Text PDF

Pulmonary hypertension (PH) is a frequent complication of chronic lung disease (CLD). However, PH is difficult to diagnose early since accompanying symptoms overlap and are similar to those of the underlying CLD. In most cases the PH is mild to moderate and therefore physical signs may be absent or subtle.

View Article and Find Full Text PDF

Structure-based drug design with equivariant diffusion models.

Nat Comput Sci

December 2024

École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.

Article Synopsis
  • - Structure-based drug design (SBDD) focuses on creating small molecules that accurately target specific proteins, using structural data to help propose new drug candidates.
  • - Current methods typically require extensive dataset preparation and retraining for different tasks, while our approach introduces a single pretrained model that can handle multiple design challenges.
  • - We introduce DiffSBDD, a diffusion model that generates new ligands based on protein structures, and demonstrate how it can be enhanced with constraints for better drug candidate quality.
View Article and Find Full Text PDF

How to define temperature in active systems?

J Chem Phys

December 2024

Institute of Condensed Matter Physics, Department of Physics, Technical University of Darmstadt, Hochschulstraße 8, D-64289 Darmstadt, Germany.

We are used to measuring temperature with a thermometer, and we know from everyday life that different types of thermometers measure the same temperature. This experience can be based on equilibrium thermodynamics, which explains the equivalence of different possibilities to define temperature. In contrast, for systems out of equilibrium such as active matter, measurements performed with different thermometers can generally lead to different temperature values.

View Article and Find Full Text PDF

Introduction: Recent advancements in single-port surgery, robotic platforms, 3D models and artificial intelligence have transformed surgical procedures, especially in urology. These innovations enhance precision, safety, and efficacy, reducing invasiveness and recovery times. The review focuses on the latest in robotic-assisted surgery for genitourinary cancers, highlighting the shift toward personalized, minimally invasive treatments.

View Article and Find Full Text PDF

This study was aimed at introducing a new method for predicting the original metrics of fragmented standardized artifacts, specifically of flint blades from the Middle Pre-Pottery Neolithic B (10,200/100-9,500/400 cal B.P.) in the Southern Levant.

View Article and Find Full Text PDF

Patients with acute pulmonary embolism (PE) have a wide spectrum of clinical presentations, from incidental findings to sudden cardiac death. Management and treatment recommendations in currently available guidelines vary according to patient risk and haemodynamic profile. A clot-in-transit (CiT) in the right heart chambers may be occasionally identified and is, therefore, an under-recognised but challenging condition, often preceding an abrupt clinical deterioration, and associated with increased mortality.

View Article and Find Full Text PDF

The widely utilized Global Positioning System (GPS) plays a crucial role in everyday navigation. The literature has predominantly focused on GPS use for reaching destinations rather than exploring its various strategic applications and relations with individual factors. The current paper is intended to develop a GPS Uses Scale assessing a variety of GPS uses for wayfinding and other GPS uses (Study 1).

View Article and Find Full Text PDF

Skin cancers affecting the concha and antihelix are quite common, because of anterior auricular projection from the head and subsequent actinic exposure, leading to the need for effective ear reconstruction post-surgery. Various methods such as skin grafts, free tissue transplantation, and local flaps have been used. This study introduces a refined technique for concha-antihelix defect reconstruction, based on a minimally invasive modification of the revolving-door flap procedure.

View Article and Find Full Text PDF

: Low back pain is common. For patients with mechanic or non-specific chronic LBP (cLBP), the current guidelines suggest conservative, nonpharmacologic treatment as a first-line treatment. Among the available strategies, physiotherapy represents a common option offered to patients presenting with cLBP.

View Article and Find Full Text PDF

In this narrative review we describe the main optical coherence tomography biomarkers appearing in eyes with neovascular age-related macular degeneration (AMD) that do not directly correspond to exudation. We highlight those signs that may mimic exudation and therefore do not require active treatment, such as outer retinal tubulations, pseudocysts, lipid globules, or hyporeflective wedges. Other signs may indicate impending exudation such as hyperreflective foci or shallow irregular retinal pigment epithelium elevation, and therefore should be carefully monitored.

View Article and Find Full Text PDF

Background: Transformational leadership fosters trusting relationships; new visions; and personal, professional, and cultural growth. Effective leaders support their team's motivational growth and organizational goals. This study aims to underscore the importance of transformational leadership and its various dimensions, focusing on its impact on job satisfaction and personal mastery among nursing leaders in healthcare organizations.

View Article and Find Full Text PDF

Inertial Active Matter with Coulomb Friction.

Phys Rev Lett

November 2024

Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany.

Friction is central to the motion of active (self-propelled) objects such as bacteria, animals, and robots. While in a viscous fluid friction is described by Stokes's law, objects in contact with other solid bodies are often governed by more complex empirical friction laws. Here, we study active particles subject to Coulomb friction using a combination of active granular experiments and simulations, supported by theoretical predictions.

View Article and Find Full Text PDF
Article Synopsis
  • The text reviews advancements in dual-source photon-counting detector CT (PCD-CT) technology for cardiovascular imaging since its approval in 2021, focusing on innovative applications and research.
  • A structured literature review identified studies that highlighted benefits such as improved image quality, better radiation dose management, and feasibility for non-invasive diagnostics in diverse patient populations.
  • Despite these advantages, there are ongoing challenges like high costs, extensive data handling, slower reconstruction times, and the need for more clinical evidence to validate the technology's superiority.
View Article and Find Full Text PDF

Background: According to the literature, about one third of patients with brain ischemic symptoms lasting <24 h, which are classified as Transient ischemic attacks (TIAs) according to the traditional "time-based" definition, show the presence of acute ischemic lesions at neuroimaging. Recent evidence has shown that the presence of acute ischemic lesions at neuroimaging may impact on the outcome of patients with transient ischemic symptoms treated with dual antiplatelet treatment (DAPT). This uncertainty is even more compelling in recent years as short-term DAPT has become the standard treatment for any non-cardioembolic TIA or minor ischemic stroke.

View Article and Find Full Text PDF

Introduction: Prehospital emergency nursing is a critical domain requiring specialized competencies and robust clinical preparation. Nurses in this sector manage high-complexity situations necessitating a broad range of competencies. This study aimed to identify and validate the essential competencies required for specialized ambulance nurses in Italy using a modified Delphi methodology.

View Article and Find Full Text PDF

Urogenital schistosomiasis caused by Schistosoma haematobium is a major cause of disability in endemic areas. Despite its socio-economic burden, no vaccine exists and the parasite's immunobiology remains underexplored. Genome annotation has revealed over 40 different genes encoding tetraspanins, transmembrane proteins with known immunomodulatory properties in other plathelminthes.

View Article and Find Full Text PDF

Olecranon fractures: An old fixation device for a new surgical technique.

Injury

September 2024

Department of Orthopaedic and Trauma surgery, S. Andrea Hospital, University of Rome La Sapienza, Italy.

Introduction: Internal fixation in not-comminuted oblique and transverse olecranon fractures is commonly performed with tension band wiring. However, despite its high healing rate, this technique is associated with a high rate of complications, often requiring the removal of fixation devices in up to 80 % of cases. The aim of our study was to describe a surgical technique using eyelet pins that maintains the effectiveness of the classic tension band wiring while reducing intolerance or displacement of the fixation devices.

View Article and Find Full Text PDF

Green bonds efficiency and renewable energy: Insights from the Covid-19 pandemic.

J Environ Manage

December 2024

Department of Management, University of Turin, Corso Unione Sovietica 218 bis, 10134, Torino, Italy; Finance and Financial Accounting Research Group, School of Accounting and Finance, University of Vaasa, Wolffintie 34, 65200, Vaasa, Finland. Electronic address:

This study investigates the efficiency of green bonds as a financial instrument for promoting renewable energy production, with a specific focus on their performance during the Covid-19 pandemic. Using a sample of 55 countries from 2014 to 2022 and employing the Fully Modified Ordinary Least Squares (FMOLS) model to address non-stationarity and cointegration of variables, we find that green bond issuance positively impacts overall renewable energy generation. However, when examining specific sources of green energy, we observe that wind energy benefits the most from green bond financing, while estimates show only marginal significance for hydro energy and no significance for solar energy.

View Article and Find Full Text PDF