A 3D-Printed Anatomical Pancreas Model for Robotic-Assisted Minimally Invasive Surgery.

The paper presents the design, manufacturing, and evaluation of a 3D-printed pancreas phantom model used for preoperative surgical planning and surgical training. Several manufacturing and design alternatives have been explored, leading to the final solution, which consisted of a transparent 3D printed elastic shell of the pancreas, resulting in an empty volume that was filled with a custom hydrogel to ensure an anatomically realistic behaviour. Additionally, specific vascular structures were printed using elastic material and specific colours.

Childhood adversities and their associations with mental disorders in the World Mental Health International College Student surveys initiative.

Purpose: This study investigates associations of childhood adversities (CAs) with lifetime prevalence, 12-month prevalence, and 12-month persistence of mental disorders in a large cross-national sample of university students.

Methods: Data came from epidemiologic surveys carried out by the World Mental Health International College Student (WMH-ICS)Initiative across 18 countries (n=60,719). The web-based surveys screened for lifetime and 12-month prevalence and age-of-onset of common DSM-5 disorders (Major Depressive Disorder, Bipolar I/II Disorder, Generalized Anxiety Disorder, Panic Disorder, Posttraumatic Stress Disorder, Alcohol and Drug Use disorders, Attention-Deficit/Hyperactivity Disorder) and five types of CAs (family dysfunction, emotional abuse, physical abuse, sexual abuse, neglect).

Analysis of Proton NMR Transverse Magnetization Decay of Mixtures of Compounds and Semicrystalline Polymers: A Least-Squares Fit and the Inverse Laplace Transform.

The present study aimed to determine the strategy for analysis of NMR transverse magnetization decay (the decay) of semicrystalline polymers using two alternative methods, i.e., a least-squares fit of decays and their inverse Laplace transform (ILT).

Experimental Study of Comprehensive Performance Analysis Regarding the Dynamical/Mechanical Aspects of 3D-Printed UAV Propellers and Sound Footprint.

The present study evaluates the viability of fabricating unmanned aerial vehicle (UAV) propellers using fused filament fabrication (FFF), with an emphasis on low-cost, desktop-scale production. The study's backdrop is the recent adoption of UAVs and advancements in additive manufacturing. While the scope targets accessibility for individual and small-scale users, the results have broader implications for scalable UAV propulsion systems.

A novel dynamic prescribed performance fuzzy-neural backstepping control for PMSM under step load.

In order to meet the performance requirements of permanent magnet synchronous motor (PMSM) systems with time-varying model parameters and input constraints under step load, this paper proposes a dynamic prescribed performance fuzzy-neural backstepping control approach. Firstly, a novel finite-time asymmetric dynamic prescribed performance function (FADPPF) is proposed to tackle the issues of exceeding predefined error, control singularity, and system instability that arise in the traditional prescribed performance function under load changes. To address model accuracy degradation and control quality deterioration caused by nonlinear time-varying parameters and input constraints in the PMSM system, a backstepping controller is designed by combining the speed function (SF), fuzzy neural network (FNN), and the proposed FADPPF.

A Computational Approach to Increasing the Antenna System's Sensitivity in a Doppler Radar Designed to Detect Human Vital Signs in the UHF-SHF Frequency Ranges.

In the context of Doppler radar, studies have examined the changes in the phase shift of the S transmission coefficient related to minute movements of the human chest as a response to breathing or heartbeat. Detecting human vital signs remains a challenge, especially when obstacles interfere with the attempt to detect the presence of life. The sensitivity of a measurement system's perception of vital signs is highly dependent on the monitoring systems and antennas that are used.

Analysis of the Mechanical Behavior of Tree-like Fractal Structures in SLM-Manufactured Components.

Tree-like fractals as internal structures are a novel alternative to conventional lattice structures for mechanical components produced via Selective Laser Melting (SLM). This study explores the mechanical behavior of tree-like fractals, targeting flexure tests on SLM test samples manufactured using two distinct fractal configurations. The main objective is to develop numerical models that can predict the effect of the branching angle on the stress-strain curves, for both fractal configurations, from experimental flexure tests.

New care pathways for supporting transitional care from hospitals to home using AI and personalized digital assistance.

Transitional care may play a vital role in the sustainability of Europe's future healthcare system, offering solutions for relocating patient care from hospital to home, therefore addressing the growing demand for medical care as the population is ageing. Re-hospitalization for the same initial pathological cause is a recurrent problem among older adults with chronic conditions such as heart failure or chronic obstructive pulmonary disease. However, to be effective, it is nowadays essential to integrate into the transitional care process innovative Information and Communications Technology technologies to ensure that patients with comorbidities experience a smooth and coordinated transition from hospitals or care centers to home, thereby reducing the risk of rehospitalization.

Enhancing Electrochemical Properties of Vitreous Materials Based on CaO-FeO-Fe-Pb and Recycled from Anodic Plate of a Spent Car Battery.

This paper presents a novel approach for the recycling of spent anodic plates from lead-acid batteries through the melt quenching method using iron and calcium oxides and iron powder. The resulting recycled samples, with a 3CaO·5FeO·xFe·(92 - x)Pb composition, where x = 0, 1, 3, 5, 8, 10, 15, and 25% mol Fe, were characterized and analyzed in terms of their electrochemical performance. X-ray diffractograms show vitroceramic structures with varied crystalline phases.

A Development and Comparison Study of PVDF Membranes Enriched by Metal-Organic Frameworks.

This study is concerned with the research and development of nanofibrous hybrid materials functioning as membranes composed of polyvinylidene fluoride (PVDF) polymer and enriched with metal-organic frameworks (MOFs) as dopants for the adsorption and detection of gases, dyes, and heavy metals in wastewater. Several types of nanofiber composites are fabricated by electrostatic spinning. The prepared samples and their chemical, optical, and material properties are analyzed.

Ecological Building Material Obtained Through the Moderate Thermal Consolidation of Ceramic Slurry Collected from Industrial Waste Waters.

The slurry collected from the waste water resulting from ceramic tile processing contains significant amounts of quartz, kaolinite, and mullite, along with traces of iron hydroxides as observed using XRD analysis coupled with mineralogical optical microscopy (MOM). Such an admixture would be ideal for the development of ecologic building materials. Microstructural conditioning enhances the binding properties of kaolinite.

Growth and resistance to mechanical stress in the young phase of black locust (Robinia pseudoacacia L.) trees based on geographical provenances.

The black locust (Robinia pseudoacacia L.) is valued for its rapid growth, adaptability, and high-quality wood. This study analyzed seedlings from eight Romanian provenances to assess their growth potential, physiological traits, and mechanical resistance.

Mental disorders and sexual orientation in college students across 13 countries of differing levels of LGBTQ+ acceptance.

Mental health disparities have been reported among sexual minority individuals; minority stress theory posits that such disparities are a result of stigma and discrimination. We estimated the prevalence of mental disorders across sexual orientation groups among first-year college students and whether differences across sexual orientation groups varied by gender and country-level LGBTQ+ (lesbian, gay, bisexual, transgender, queer) social acceptance. Using data (N = 53,175; 13 countries) from the World Mental Health Surveys International College Surveys, we performed multilevel logistic regressions to estimate the associations between sexual orientation (i.

Influence of Polymers Surface Roughness on Noise Emissions in 3D-Printed UAV Propellers.

Following the rising popularity of Unmanned Aerial Vehicles (UAVs) among large-scale users, in the form of domestic as well as professional drones, with applications in domains such as safety (e.g., surveillance drones), terrain mapping (using geo-scanning UAVs), videography drones, and high performance drones used in FPV (First Person View) drone competitions-as well as the rising wide accessibility of Fused Filament Fabrication (FFF)-especially considering the recent apparition and popularization of 3D printers capable of displaying exponential increases in performance metrics, the present work takes into consideration the practice of fabricating UAV propellers by means of FFF, focusing on the theoretical, as well as on the practical aspects of the roughness and quality observed at the level of the resulting surfaces.

Bioconversion of FeO Nanoparticles by Probiotics.

: Iron deficiency anemia remains a primary global health concern, affecting millions worldwide. Despite the widespread availability of iron supplements, their efficacy is often hindered by poor bioavailability and adverse gastrointestinal effects. This study explores the potential of probiotics to enhance the bioavailability of FeO NPs through probiotic-mediated mechanisms.

ATRX, OLIG2, MGMT, and IDH2 in Glioblastoma: Essential Molecular Mechanisms and Therapeutic Significance.

: Glioblastoma (GBM) is among the most aggressive and lethal primary brain tumors, characterized by high heterogeneity, invasive growth, and resistance to conventional therapies. The 2021 WHO classification highlights the importance of molecular diagnostics, integrating genetic, transcriptomic, and epigenetic alterations alongside histological and immunohistochemical criteria. : Key molecular regulators, including ATRX, OLIG2, MGMT, and IDH2, play critical roles in chromatin remodeling, transcriptional reprogramming, DNA repair, and metabolic adaptation.

Implementing High-Intensity Interval Training in Physical Education: Effects on Adolescents' Exercise Motivation.

(1) Background: The aim of this study was to determine the effects of high-intensity interval training (HIIT) implemented in physical education classes on adolescents' motivation for exercise. (2) Methods: This study involved 60 male adolescents (16.23 ± 0.

Paraffin Graphite Composite Spheres for Thermal Energy Management.

The paper presents a simple and cost-effective way of enhancing the thermal conductivity of the paraffin/graphite phase change material (PCM) composite spheres manufactured by using a low-cost and eco-friendly method. The composite materials were made of an admixture of 5-20% vol. graphite powder.

Heuristic based federated learning with adaptive hyperparameter tuning for households energy prediction.

Federated Learning is transforming electrical load forecasting by enabling Artificial Intelligence (AI) models to be trained directly on household edge devices. However, the prediction accuracy of federated learning models tends to diminish when dealing with non-IID data highlighting the need for adaptive hyperparameter optimization strategies to improve performance. In this paper, we propose a novel hierarchical federated learning solution for efficient model aggregation and hyperparameter tuning, specifically tailored to household energy prediction.

Advancements in Cellulose-Based Materials for CO Capture and Conversion.

This study explores the recent advances of cellulose-based materials in the context of carbon capture and conversion amid the global imperative to reduce COemissions. The review emphasizes the critical importance of selecting suitable materials for establishing a robust and secure carbon capture technology. From elucidating celluloses' molecular structure and unique properties to detailing the advancements in CO capture technologies, the narrative provides a comprehensive understanding of the intricate interplay between cellulose and sustainable CO management.

Online and personalised control of the Depth of hypnosis during induction using fractional order PID.

Introduction: The integration of information technology and control engineering has significantly increased in clinical practice research, especially in the management of drug dosing for general anaesthesia.

Objective: The main focus of the research is to achieve a personalised control of the Depth of Hypnosis based on a novel approach. The primary objective is to regulate the Bispectral Index by administering Propofol during the hypnotic phase of anaesthesia.

A Sensor-Based Classification for Neuromotor Robot-Assisted Rehabilitation.

Neurological diseases leading to motor deficits constitute significant challenges to healthcare systems. Despite technological advancements in data acquisition, sensor development, data processing, and virtual reality (VR), a suitable framework for patient-centered neuromotor robot-assisted rehabilitation using collective sensor information does not exist. An extensive literature review was achieved based on 124 scientific publications regarding different types of sensors and the usage of the bio-signals they measure for neuromotor robot-assisted rehabilitation.

A Deep Learning-Based Detection and Segmentation System for Multimodal Ultrasound Images in the Evaluation of Superficial Lymph Node Metastases.

: Even with today's advancements, cancer still represents a major cause of mortality worldwide. One important aspect of cancer progression that has a big impact on diagnosis, prognosis, and treatment plans is accurate lymph node metastasis evaluation. However, regardless of the imaging method used, this process is challenging and time-consuming.

New Biocompatible Cyanoacrylate and Polylactic Acid Hemostatic Patch: An In Vivo Proof of Concept Study.

Background: Traumatic injuries cause millions of deaths annually, with intra-abdominal hemorrhage as a leading cause. Achieving hemostasis remains challenging. This study evaluates the hemostatic properties of a novel biocompatible cyanoacrylate-polylactic acid patch.