Forward calculation of airborne gamma 3D radiation fields based on rapid coupling method of point kernel integrals.

Airborne gamma ray spectrum detection technology is an effective means to measure the concentration and spatial distribution of natural radionuclides in environmental media such as surface rocks and soil during aviation flight. Therefore, it is vital to fully explore the radiation information related to mineralization in airborne gamma spectrometry data and explore the dose distribution law of gamma radiation field of radionuclides in the detection area. This paper is based on the theoretical calculation model of ground-air interface gamma radiation field.

A dataset of voltage and current waveforms in an electric arc under low pressure for aircraft power systems.

This paper presents an experimental dataset developed for the detection of parallel arc faults in aircraft electrical systems. This dataset is based on a total of 960 experiments performed in a low-pressure chamber under different conditions using two electrodes placed on the surface of an insulating material. These experiments correspond to 2 insulating materials, 12 electrode distances, and 10 pressure conditions representative of aircraft environments.

Competing elastic and viscous gradients determine directional cell migration.

Cell migration regulates central life processes including embryonic development, tissue regeneration, and tumor invasion. To establish the direction of migration, cells follow exogenous cues. Durotaxis, the directed cell migration towards elastic stiffness gradients, is the classical example of mechanical taxis.

Electrodialysis with Bipolar Membranes to valorise saline waste streams: Analysing the fate of valuable minor elements.

Brine mining can represent a valuable non-conventional resource for the extraction of Mg, Li, B, Sr and other Trace Elements (TEs) such as Rb, Cs, whose recoveries require chemical reagents such as alkaline and acidic solutions. In a circular strategy, these required chemicals can be produced in-situ through Electrodialysis with Bipolar Membranes (EDBM). In this work, a laboratory EDBM unit was operated using real brines from Trapani saltworks to investigate, for the first time, the migration of minor and trace ions, as Li, B, Sr, Cs and Rb through ion-exchange membranes (IEMs).

Eyelid Dynamics Characterization with 120 GHz mmW Radar.

This paper presents a new approach to measuring eyelid movement using millimeter wave (mmW) radar technology. A two-step method is proposed, involving the observation of a small resolution cell corresponding to the monitored eye and the evaluation of the phase evolution over the measurement period. Simulations are conducted to support radar system optimization and data interpretation with a focus on detecting eyelid movement patterns and compensating for interference from other parts of the body.

Evaluating the Impact of Washing Conditions on the Color Changes of Naturally Colored Cotton Fabrics: A Focus on Detergents, Water Types, and Temperature.

Intrinsically colored cotton is crucial for sustainability as it eliminates the need for chemical dyes, reducing water pollution and carbon footprint. It also preserves biodiversity by using fewer pesticides and supports eco-friendly, ethical product creation. This research aims to examine the factors that influence the color change that occurs in naturally colored organic cotton (NaCOC) fabrics when washed under normal household conditions, and it focuses on special detergents designed for people with skin hypersensitivity.

Analyzing Thermal Degradation Effects on Devulcanized GTR-Based NR/SBR/NBR Rubber Compounds Reinforced with SiO Particles.

The large number of tires produced annually demands new recycling methods. A key challenge associated with recycling elastomers is their crosslinking structure that prevents fusion. It is possible to reverse crosslinking through a process called devulcanization.

Do diffractive intraocular lenses break the beneficial interaction between chromatic and monochromatic aberrations in the eye?

This study investigates whether a diffractive presbyopia-correcting multifocal intraocular lens disrupts the favorable interaction between chromatic and monochromatic aberrations in the eye. This is analyzed not only for distant objects but also for closer viewing distances, where the lens utilizes different diffraction orders depending on its design. We consider diffractive designs based on the zero-diffraction order for far vision and the first diffraction order for near vision (i.

Overt and hidden polymorphism in the binary system involving the Z- and E- isomers of broparestrol.

Broparestrol has been used as a drug to treat acne in the form of a mixture of its two stereoisomers. Although it has been withdrawn from the market, the binary system is rich in polymorphism and understanding the phase behaviour of the binary system involving the E- and Z-isomers is challenging. Physical mixtures do not immediately give rise to equilibrium phase behaviour, whereas recrystallization often leads to metastable phases and the appearance of stable phases can take years.

A European aerosol phenomenology - 9: Light absorption properties of carbonaceous aerosol particles across surface Europe.

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)).

Model-driven exploration of poro-viscoelasticity in human brain tissue: be careful with the parameters!

The brain is arguably the most complex human organ and modelling its mechanical behaviour has challenged researchers for decades. There is still a lack of understanding on how this multiphase tissue responds to mechanical loading and how material parameters can be reliably calibrated. While previous viscoelastic models with two relaxation times have successfully captured the response of brain tissue, the Theory of Porous Media provides a continuum mechanical framework to explore the underlying physical mechanisms, including interactions between solid matrix and free-flowing interstitial fluid.

Retention on antiretroviral therapy and drivers of lost-to-follow up in the Central African Republic: a longitudinal analysis.

Introduction: The retention in care of patients undergoing antiretroviral therapy (ART) is a cornerstone for preventing AIDS-associated morbidity and mortality, as well as further transmission of HIV. Adherence to ART poses particular challenges in conflict-affected settings like the Central African Republic (CAR). The study objective was to estimate the rate of lost-to-follow-up (LTFU) and determine factors associated with LTFU among patients living with HIV under ART in CAR.

The quality, reliability and educational values of YouTube videos for low vision patients.

Clinical Relevance: Access to high-quality educational resources is essential for patients with low vision. Providing curated recommendations for reliable materials can help ensure patients receive accurate information for effective visual health management.

Background: Visual impairment is a global issue affecting millions.

Socioeconomic inequalities in COVID-19 infection and vaccine uptake among children and adolescents in Catalonia, Spain: a population-based cohort study.

Introduction: This study aims to investigate the relationship between deprivation, as measured by a socioeconomic deprivation index (SDI) score for census tract urban areas, and COVID-19 infections and vaccine uptake among children and adolescents before and after the vaccination rollout in Catalonia, Spain.

Methods: We conducted a population-based cohort study using primary care records. Individuals were followed 3 months before the start of the vaccination campaign in Spain and 3 months after.

Rapid, systematic updating of movement by accumulated decision evidence.

Acting in the natural world requires not only deciding among multiple options but also converting decisions into motor commands. How the dynamics of decision formation influence the fine kinematics of response movement remains, however, poorly understood. Here we investigate how the accumulation of decision evidence shapes the response orienting trajectories in a task where freely-moving rats combine prior expectations and auditory information to select between two possible options.

A dynamical study of Hilda asteroids in the Circular and Elliptic RTBP.

The Hilda group is a set of asteroids whose mean motion is in a 3:2 orbital resonance with Jupiter. In this paper, we use the planar Circular Restricted Three-Body Problem (CRTBP) as a dynamical model and we show that there exists a family of stable periodic orbits that are surrounded by islands of quasi-periodic motions. We have computed the frequencies of these quasi-periodic motions and we have shown how the Hilda family fits inside these islands.

Study on rheological properties of composite propellant slurry in the mixing process by using experimental and numerical simulation.

Researchers have extensively focused on the safety of the solid propellant preparation process, particularly the mixing process that was deemed critical for the safety of the entire procedure. Herein, the rheological curves of propellants at different stages of mixing are obtained experimentally. The obtained curves are fitted using the Herschel-Bulkley non-Newtonian model.

A highly-configurable session designer for VR nursing training.

Virtual Reality (VR) has proven to be a valuable tool for medical and nursing education. VR simulators are available at any time and from anywhere, and can be used with or without faculty supervision, which results in a significant optimization of time, space, and resources. In this paper we present a highly-configurable session designer for VR-based nursing education following the Standards for QUality Improvement Reporting Excellence: SQUIRE 2.

Organoleptic characteristics of high-protein snacks with novel and sustainable ingredients: Cricket flour and carob powder.

To fulfill consumer trends in sustainable and healthy food choices, this study explored the application of edible insects and carob powder as sustainable and nutritious ingredients in developing a high-protein snack, known as a protein ball. Four formulations were developed and characterized in terms of moisture content, water activity, color, texture, microbial count, and nutritional profile. Finally, the sensory profile was determined using the flash profile method, and the developed product was compared to a commercial product.