bluuebunny/crossref_metadata_2025 huggingface dataset:
Inscription and Thermal Stability of Fiber Bragg Gratings in Hydrogen-Loaded Optical Fibers Using a 266 nm Pulsed Laser
Authors: Zhu Xiangxi , Xin Zixuan , Zhu Haoming , Wang Hongye , Cheng Xin , Tam Hwa-Yaw , Qu Hang , Hu Xuehao
Published: November 2024

Fiber Bragg gratings (FBGs) have gained substantial research interest due to their exceptional sensing capabilities. Traditionally, FBG fabrication has required the use of pre-hydrogenated fibers and high-cost laser systems such as excimer lasers at 193 nm or femtosecond lasers. In this study, we present the first instance of FBG inscription in hydrogen-loaded, standard single-mode silica optical fibers using a more affordable 266 nm solid-state pulsed laser combined with a scanning phase mask lithography technique. We systematically explored the effects of pulse energy and scanning speed on the quality and spectral characteristics of the gratings, achieving reflectivities as high as 99.81%. Additionally, we tracked the spectral evolution during the FBG inscription process, demonstrating uniform growth of the core mode. We also investigated the stability of the core mode during a 24-h thermal annealing process up to 150 °C. The sensitivity was 10.7 pm/°C in the range of 0 to 130 °C. Furthermore, strain measurement was conducted based on the FBG annealed at 100 °C, showing a sensitivity of 0.943 pm/µε in the range of 0 to 1667 µε.
Enhanced Dielectric Properties and Antibacterial Activity of Natural Rubber by Modification with Poly(Acrylic Acid-Co-Acrylamide) Incorporating Silver Nanoparticles and Titanium Dioxide
Authors: Inphonlek Supharat , Kotchapradit Supawat , Marungsri Boonruang , Ruksakulpiwat Yupaporn , Ruksakulpiwat Chaiwat
Published: November 2024

This work aims to enhance natural rubber’s dielectric properties and antibacterial activity by incorporating silver nanoparticles and titanium dioxide. Deproteinized natural rubber (DPNR) was modified through the graft copolymerization of acrylic acid and acrylamide using N′, N′-Methylenebisacrylamide as a crosslinking agent, resulting in poly(acrylic acid-co-acrylamide)-modified, deproteinized natural rubber (MDPNR). This modification facilitated coordination with silver ions and interaction with titanium dioxide. Silver nanoparticles were generated under heat and pressure. Modified natural rubber composites containing silver nanoparticles and titanium dioxide (MDPNR/Ag-TiO2) were prepared. Scanning electron microscopy (SEM) revealed well-distributed silver in the modified natural rubber matrix, while agglomeration of titanium dioxide was observed at a high loading. Both MDPNR and MDPNR/Ag-TiO2 showed high thermal stability compared to DPNR. The MDPNR/Ag-TiO2 composites exhibited higher Tg and lower tan δ, indicating higher stiffness due to the restriction of chain movement compared to that in MDPNR. DPNR exhibited a low dielectric constant, enhanced by poly(acrylic acid-co-acrylamide) modification and silver nanoparticle/titanium dioxide incorporation. Incorporating 0.5 phr of AgNO3 and 2.5 phr of TiO2 in the composites increased the dielectric constant by 1.33 times compared to that of MDPNR. MDPNR showed no antibacterial activity, while the MDPNR/Ag-TiO2 composites exhibited promising antibacterial activity against Staphylococcus aureus and Escherichia coli.
Electrospinning of Poly-3-Hydroxybutyrate Fibers Loaded with Chlorophyll for Antibacterial Purposes
Authors: Tyubaeva Polina M. , Varyan Ivetta A. , Romanov Roman R. , Merzlikin Vasily A. , Gruznova Olga A. , Gruznov Dmitry V. , Popov Nikolay I. , Shcherbakova Gulizar Sh. , Shuteeva Ekaterina N. , Chesnokova Irina P. , Lobanov Anton V. , Olkhov Anatoly A.
Published: November 2024

This work is devoted to the creation of biocompatible fibrous materials with a high antimicrobial effect based on poly-3-hydroxybutyrate (PHB) and chlorophyll (Chl). The data obtained show the possibility of obtaining fibrous materials from PHB and Chl by electrospinning methods. The obtained electrospun matrices were investigated by the SEM, DSC and FTIR methods. Various key properties of the matrices were evaluated, including hydrophilicity and mechanical strength, as well as photodynamic and light-dependent antimicrobial effects against the conditionally pathogenic microorganism Staphylococcus aureus. The results demonstrate a significant improvement in electrospinning properties for a concentration of 0.5% Chl and a reduction in fiber formation defects, as well as an increase in the strength of nonwovens. It was found that the antimicrobial potential of Chl-PHB (with concentrations of Chl of 1.25 and 1.5%) is higher than that of Chl in free form. It was also determined that irradiation increases the inhibitory effect of Chl, both in free form and in the form of a complex with a polymer.
Study on the Effect of SBS/HVA/CRM Composite-Modified Asphalt on the Performance of Recycled Asphalt Mixtures
Authors: Li Haoming , Wang Hongkui , Lin Junning , Yang Jiangang , Yao Yuquan
Published: November 2024

To investigate the feasibility of composite modification techniques in improving the performance of recycled asphalt mixtures, in this study, the high-viscosity agent (HVA) and crumb-rubber materials (CRM) were used to modify asphalt with a styrene-butadiene-styrene block copolymer (SBS), in order to prepare SBS-HVA and SBS-CRM composite-modified asphalts. The virgin asphalt mixtures, as well as three asphalt types of recycled asphalt mixtures with 50% reclaimed asphalt pavement (RAP) content, were designed. The optimal asphalt content of the four types of asphalt mixtures was analyzed, and the rutting test, the asphalt bond strength test, the moisture-induced sensitivity test, and the low-temperature cracking resistance test were conducted to investigate the performance of the four types of asphalt mixtures. The results showed that the higher the asphalt kinematic viscosity, the higher the optimum asphalt content of the asphalt mixtures under the same air voids. HVA significantly improves the adhesion between SBS-modified asphalt and aggregate under dry conditions, while SBS-CRM composite-modified asphalt performs similarly to SBS-modified asphalt. Before and after water immersion, the degree of pull-out strength decay between the asphalts and aggregates follows the sequence of SBS-CRM- > SBS- > SBS-HVA-modified asphalts. Additionally, the residual pull-out work follows the sequence of SBS-HVA- > SBS-CRM- > SBS-modified asphalt. SBS-CRM composite-modified asphalt can significantly improve the moisture sensitivity of recycled asphalt mixtures, as well as low-temperature cracking resistance, while SBS-CRM composite-modified asphalt only improves the low-temperature cracking resistance of recycled asphalt mixtures, and does not improve the moisture sensitivity. Based on the results, it is recommended to select the appropriate composite modification method based on the climate and loading conditions, to maximize the value of asphalt, and to achieve sustainable and durable pavement.
Advances and Challenges in WO3 Nanostructures’ Synthesis
Authors: Pinto Odeilson Morais , Toledo Rosimara Passos , Barros Herick Ematne da Silva , Gonçalves Rosana Alves , Nunes Ronaldo Spezia , Joshi Nirav , Berengue Olivia Maria
Published: November 2024

In recent decades, nanoscience has experienced rapid global advancements due to its focus on materials and compounds at the nanoscale with high efficiency across diverse applications. WO3 nanostructures have proven to be a unique material in the development of new technologies due to their electrical, optical, and catalytic properties. They have been used as raw materials for the fabrication of electrochromic devices, optoelectronic devices, hydrogenation catalysts, gas sensors, adsorbents, lithium-ion batteries, solar driven-catalysts, and phototherapy. One of the most striking characteristics of WO3 is its morphological diversity, spanning from 0D to 2D, encompassing nanoparticles, nanowires, nanofibers, nanorods, nanosheets, and nanoplates. This review discusses common synthesis methods for WO3 nanostructures, including hydrothermal and solvothermal methods, microwave-assisted synthesis, sol-gel, electrospinning, co-precipitation, and solution combustion, with emphasis on the advantages and challenges of each of them. The processes involved, the obtained morphologies, and the resulting applications are also presented. As evidenced here, the fine control of the synthesis parameters allows the production of nanostructures with controlled phase, morphology, and size, essential aspects for the production of high-performance WO3-based devices.
Mechanical Behavior of Oil-Saturated Silicone Membranes for Adipose Tissue Synthesis in Clinical and Theatrical Prosthesis
Authors: Arm Richard , Shahidi Arash , Pislaru Andreea , Marasinghe Kalana , Bibb Richard , Hughes-Riley Theodore
Published: November 2024

Emulating very soft tissues with synthetic materials is important for clinical prosthetists who want to improve compliance in maxillofacial and breast prosthesis. It is equally important for theatrical prosthetists wanting to model bariatric conditions and soft organs for surgical or palpation training. Polydimethylsiloxane (PDMS) gels, which are often used in medical model construction, are stiff and highly elastic compared to the friable soft tissues found in the body. Silicone oil is known to soften PDMS gels, but it is not known precisely how oil dispersal affects these gels and what proportion of oil is needed to simulate very soft tissue membranes like adipose tissue. In this work, internationally agreed test standards were used to mechanically characterize a range of PDMS gel membranes saturated with different amounts of silicone oil to determine whether materials with behavioral similarities to adipose tissue could be created. Mechanical properties like hardness, elasticity, strength, viscoelastic behavior and cure-time are presented in this study, which are all key factors required by the creators of such membranes. Results were compared to identical tests on porcine fat and data in the literature for porcine and human fat. The data revealed a strong correlation between increases in oil content and decreases in membrane hardness, strength and elastic modulus. It was also found that increases in oil content caused proportional increases in cure time, while membranes with equal amounts of oil and gel were best at mimicking characteristics of human and porcine fat, like hardness and elasticity.
Personality Phenomena in Women with Alzheimer’s Dementia
Authors: Henriques-Calado Joana
Published: November 2024

State-of-the-art literature has been enhancing the significance of personality phenomena in Alzheimer’s dementia (AD). This study seeks to identify the relationships of current and premorbid traits and abnormal dimensions in AD. Five-factor model and axis II personality disorders are taken as references. This research was conducted with two groups, which were assessed using the NEO-FFI and PDQ-4+ in individual interview sessions. Current personality measure: AD Group (n = 44 female participants); premorbid personality measure: AD group informants (n = 40 related participants). Findings suggest that in terms of both premorbidity and current studies, the relevance of the dimensions neuroticism (high) and conscientiousness (low), are the most common explanations found in the personality disorder scales, DSM clusters, Appendix B and the global personality disorder index. These data are relevant for the assessment of personality phenomena in Alzheimer’s disease.
The Prophet Problem
Authors: Firestone Reuven
Published: November 2024

Because scripture represents the direct word of God, it is the most sacred source for authority in the scriptural monotheisms. Scripture is conveyed to humanity through extraordinary individuals known as prophets. But if the purported prophet is a false prophet, then the conveyed message is false, resulting in the collapse of the structure upon which religious authority rests. This problem was recognized in the Hebrew Bible, and accusations of flawed prophecy and deceitful prophets figure prominently in relations between the scriptural monotheisms. Jews do not accept the authenticity of Jesus’ role as messiah (and prophet) in the NT, and Jews and Christians do not accept the authenticity of Muhammad’s role as prophet in the Qur’an. But the rejection is unidirectional. As a rule, established religions cannot accept new prophets, while new religions accept the prophets that lived before, though with certain qualifications. Each of the three classic scriptural monotheisms also declares an “end” to prophecy after the canonization of its scripture. Yet despite these deadlines, each acknowledges that God could nevertheless send another prophet, leaving open the wild card for new prophecy, new revelation, and even new religion; within each of the classic scriptural monotheisms, individuals arose after the canonization of scripture who were deemed by many to be prophets or something “like” prophets. This essay presents a preliminary phenomenology of prophethood, around which much of the religious polemics between the scriptural monotheisms are constructed.
Machine Vision-Based Real-Time Monitoring of Bridge Incremental Launching Method
Authors: Xie Haibo , Liao Qianyu , Liao Lei , Qiu Yanghang
Published: November 2024

With the wide application of the incremental launching method in bridges, the demand for real-time monitoring of launching displacement during bridge incremental launching construction has emerged. In this paper, we propose a machine vision-based real-time monitoring method for the forward displacement and lateral offset of bridge incremental launching in which the linear shape of the bottom surface of the girder is a straight line. The method designs a kind of cross target, and realizes efficient detection, recognition, and tracking of multiple targets during the dynamic process of beam incremental launching by training a YOLOv5 target detection model and a DeepSORT multi-target tracking model. Then, based on the convex packet detection and K-means clustering algorithm, the pixel coordinates of the center point of each target are calculated, and the position change of the beam is monitored according to the change in the center-point coordinates of the targets. The feasibility and effectiveness of the proposed method are verified by comparing the accuracy of the total station and the method through laboratory simulation tests and on-site real-bridge testing.
Exploring Cyclists’ Behavior, Traffic Safety Literacy, and Crash Occurrence in Latvia
Authors: Volgemute Katrina , Vazne Zermena , Useche Sergio A.
Published: November 2024

While the role of safe riding behavior as a safety contributor for cyclists has been increasingly studied in recent years, there have been few studies analyzing cycling behavior in relation to crash-related outcomes. Indeed, to the best of our knowledge, this is the first time this issue has been addressed in the case of Latvia. Aim: The objective of this study was to assess the relationships among self-reported cyclists’ behavior, traffic safety literacy, and their cycling crash involvement rates. Method: A total of 299 cyclists aged M = 32.8 from across Latvia participated in an online survey, which included questions regarding respondents’ demographics, frequency of riding, cycling behaviors, and the number of crashes in the previous five years. The Cycling Behavior Questionnaire (CBQ) and the Cyclist Risk Perception and Regulation Scale (RPRS) were applied to assess cyclists’ behavior patterns and traffic safety literacy. Results: According to the findings, it can be inferred that cyclists frequently engage in riding errors and traffic violations while cycling. Those who exhibit more anti-social behavior (such as traffic violations and riding errors) patterns are also more likely to be involved in road crashes. Conversely, cyclists with greater positive behavior rates more often also tend to possess better knowledge of traffic rules and exhibit a heightened risk perception, indicating a greater awareness of road traffic safety. Conclusions: This study underscores key age differences, with older individuals significantly less involved in riding crashes, exhibiting fewer driving errors and a higher level of risk perception, which serves as a relevant factor in road safety. At the practical level, these results stress the need to address both traffic safety literacy and protective cycling factors of cyclists, to improve overall road safety and promote active transport modes in Latvia.
Curvature Analysis of Seed Silhouettes in the Euphorbiaceae
Authors: Cervantes Emilio , Martín-Gómez José Javier , del Pozo Diego Gutiérrez , Tocino Ángel
Published: November 2024

The Euphorbiaceae is a large, diverse, and cosmopolitan family of monoecious or dioecious trees, shrubs, herbs, and lianas. Their name comes from Euphorbia, one of the largest genera in the Angiosperms, with close to 2000 species and a complex taxonomy. Many of their members have an economic interest in multiple applications, including pharmaceutical, nutritional, and others. The seeds of the Euphorbiaceae develop in schizocarps and have a diversity of shapes that have proven useful for species identification and classification. Nevertheless, analytical quantitative methods can be the subject of further development for the application of seed morphology in the taxonomy of this family. With this objective, measurements of size (area, perimeter, length, and width) and shape (circularity, aspect ratio, roundness, and solidity) in seed images of 230 species representative of the main taxonomic groups of Euphorbiaceae are presented, and curvature analysis is applied to 19 species. Seed images corresponding to many species of this family present a tetragonal pattern with a curvature peak in the apical pole and three in the basal pole. The results of the curvature analysis are discussed in relation to other morphological properties, revealing new aspects of seed morphology of taxonomic application.
Variability in Fruit Morphology and Germination Capacity of the Tropical Medicinal Species Securidaca longipedunculata Fres.
Authors: Daboué Edith M. S. , Béné Ali , Dimobe Kangbéni , Dayamba Djibril S. , Zouré Aboubacar B. , Ouattara Bassiaka , Sabo Prospère , Tuina Sévérin , Neya Oblé , Vinceti Barbara , Ouédraogo Amadé
Published: November 2024

Securidaca longipedunculata Fresen, a medicinal tree indigenous to tropical Africa, faces threats due to root overharvesting and limited occurrence. This study assessed the extent of variation in the morphological traits and germination of seeds collected from populations located across the Sudano-Sahelian and Sudanian climatic zones in Burkina Faso. A total of 1600 mature fruits across the two climatic zones were characterized in their morphology. Seed germination tests were conducted with material collected across climatic zones, using six physical and chemical pre-treatments and two substrates. Descriptive statistics and analyses of variance were used to process the data generated. The morphological data showed significant variations in fruit and nut traits across the populations sampled, which may reflect a significant underlying genetic diversity, as expected in wild plants. Samples from the Sudano-Sahelian zone exhibited larger fruits (11.87 ± 1.38 mm) containing heavier (0.12 ± 0.04 g) and larger (5.64 ± 1.02 mm) nuts. Seeds sown on river sand exhibited the highest mean germination percentage (35.24 ± 17.73%) and germination speed (0.40 ± 0.36 seedlings per day). Seed wing and coat removal resulted in the highest mean germination percentages (respectively, 36.5 ± 19% and 35.5 ± 16%). These results suggest the existence of some barriers to germination in S. longipedunculata seeds. For seedling production, preferably heavier fruits should be collected and sowing carried out on river sand after wing or coat removal.
“Inclination Towards Innovation”: Deconstructing Neoliberal Educational Discourses from a School Context
Authors: Luna Diego , Romero Morante Jesús , Pineda-Alfonso José Antonio , Hunt-Gómez Coral I.
Published: November 2024

Educational innovation is a key concept for policymakers, school leaders, and families, but its conflicting aspects make it hard to define clearly. This study explores how pro-innovation narratives are created within Spanish educational policies and how these narratives are received in schools. Using principles of critical discourse analysis, we examined a corpus of ten texts from three different discursive fields with a tailored analytical approach. This paper focuses specifically on findings related to regulations and the private school involved in the study. The results reveal a strong connection between Spanish educational laws and the political environment in which they were developed. Additionally, the study identifies new, economically-driven definitions for key concepts like education, quality, and innovation. A major conclusion is that today’s “innovative” schools align with the principles of educational neoliberalism. In this context, the concept of innovation reflects lawmakers’ goals, which school leaders endorse. At the school level, administrators adopt a self-promotional discourse that often appears contradictory and propagandist.
Career Choices Among Individuals with Disabilities in the Gulf Region: Cultural, Religious, Policy, and Socio-Economic Influences: A Literature Review
Authors: Al-Hendawi Maha , Hussein Esraa , Ismail Fathia
Published: November 2024

This study explores the multifaceted factors influencing career decisions among individuals with disabilities (IWDs) in the Gulf region, emphasizing the interplay between health and cultural/religious contexts. To examine these complex influences, this review adopts Bronfenbrenner’s Ecological Systems Theory as a guiding framework. This theoretical lens facilitates an in-depth analysis of how personal attributes, religious and cultural beliefs, disability-specific challenges, systemic and environmental barriers, gender-related issues, social networks, transition and teachers’ attitudes, work environment, and government policies interact across multiple levels to shape career choices for IWDs in the Gulf region. Cultural and religious beliefs critically shape both the perceptions and opportunities available to IWDs, reflecting the broader macrosystem influences. By applying this multi-layered approach, this review highlights the need to integrate religious and spiritual considerations into support frameworks to enhance the mental and physical well-being of IWDs as they navigate their career paths. The findings suggest actionable implications for policymakers and practitioners dedicated to improving inclusion and equity in the workforce for individuals with disabilities.
A Brief Overview of the Pawns Programming Language
Authors: Naish Lee
Published: November 2024

This paper describes the Pawns programming language, currently under development, which uses several novel features to combine the functional and imperative programming paradigms. It supports pure functional programming (including algebraic data types, higher-order programming and parametric polymorphism), where the representation of values need not be considered. It also supports lower-level C-like imperative programming with pointers and the destructive update of all fields of the structs used to represent the algebraic data types. All destructive update of variables is made obvious in Pawns code, via annotations on statements and in type signatures. Type signatures must also declare sharing between any arguments and result that may be updated. For example, if two arguments of a function are trees that share a subtree and the subtree is updated within the function, both variables must be annotated at that point in the code, and the sharing and update of both arguments must be declared in the type signature of the function. The compiler performs extensive sharing analysis to check that the declarations and annotations are correct. This analysis allows destructive update to be encapsulated: a function with no update annotations in its type signature is guaranteed to behave as a pure function, even though the value returned may have been constructed using destructive update within the function. Additionally, the sharing analysis helps support a constrained form of global variables that also allows destructive update to be encapsulated and safe update of variables with polymorphic types to be performed.
A Spatial–Temporal Bayesian Model for a Case-Crossover Design with Application to Extreme Heat and Claims Data
Authors: Liang Menglu , Li Zheng , Zhang Lijun , Wang Ming
Published: November 2024

Epidemiological approaches for examining human health responses to environmental exposures in observational studies frequently address confounding by employing advanced matching techniques and statistical methods grounded in conditional likelihood. This study incorporates a recently developed Bayesian hierarchical spatiotemporal model within a conditional logistic regression framework to capture the heterogeneous effects of environmental exposures in a case-crossover (CCO) design. Spatial and temporal dependencies are modeled through random effects incorporating multivariate conditional autoregressive priors. Flexible frailty structures are introduced to explore strategies for managing temporal variables. Parameter estimation and inference are conducted using a Monte Carlo Markov chain method within a Bayesian framework. Model fit and optimal model selection are evaluated using the deviance information criterion. Simulations assess and compare model performance across various scenarios. Finally, the approach is illustrated with workers’ compensation claims data from New York and Florida to examine spatiotemporal heterogeneity in hospitalization rates related to heat prostration.
Requirements of Constrictive Binding and Dynamic Systems on Molecular Cages for Drug Delivery
Authors: Montà-González Giovanni , Martínez-Máñez Ramón , Martí-Centelles Vicente
Published: November 2024

Molecular cages have promising host–guest properties for drug delivery applications. Specifically, guest⊂cage complexes can be used for the on-command release of encapsulated guest molecules in response to specific stimuli. This research explores both the dynamic and constrictive binding guest⊂cage systems for drug encapsulation and release in biological environments. In dynamic systems, the guest rapidly passes in-and-out through the portals of the cage, enabling drug delivery in vitro but facing limitations in vivo due to dilution effects that result in guest release. These challenges are addressed by constrictive binding systems, where the guest is trapped in a “gate-closed” state within the cage. In these systems, the on-command release is triggered by a “gate opening” event, which lowers the guest–out energy barrier. A full guest release is achieved when the gate opening reduces the cage–guest affinity, making constrictive binding systems more effective for controlled drug delivery. As a result, this study shows that guest⊂cage complexes have suitable properties for drug delivery in biological contexts.
A Unique and Species-Rich Assemblage of Freshwater Glassfishes (Teleostei: Ambassidae: Dapalis) from the lower Oligocene of the Central Paratethys with the Description of Four New Species
Authors: Ahnelt Harald , Bradić-Milinović Katarina
Published: November 2024

We describe four new species of the fossil genus Dapalis (Ambassidae), Dapalis absconditus sp. nov., Dapalis octospinus sp. nov., Dapalis parvus sp. nov. and Dapalis quintus sp. nov., based on articulated skeletons with otoliths in situ from a freshwater habitat of the lower Oligocene of Raljin/Strelac (Serbia). Besides in body shape (e.g., body length, body depth, head length, preanal length), the species differ in morphological characters like, e.g., the serration of the preopercle, the length of the first two spines of the first dorsal and the anal fin and the morphology of the sagittal otoliths (e.g., ratio of otolith height to otolith length, ratio of otolith width to otolith length). Together with D. pauciserratus, also described from Raljin, these four species represent the most species-rich assemblage of freshwater Dapalis known so far. The compartmentalization of the internal structure of the spines reveals the close relationship of Dapalis and extant Ambassidae. Additionally, we discuss a new character from the ventral field of the otolith, a ventral depression, only found in species from Raljin. This new character is unique among the European Dapalis species and allows us to separate these five species into two species groups.
Rodlet Cell Morpho–Numerical Alterations as Key Biomarkers of Fish Responses to Toxicants and Environmental Stressors
Authors: Manera Maurizio
Published: November 2024

Rodlet cells (RCs) are specialised immune cells found in teleost fish, recognised for their unique morphology and potential roles in both immune responses and environmental adaptation. Herein, current knowledge on RCs is reviewed, focussing on their responsiveness to toxicants and environmental stressors. The historical context of RC research is discussed, including key milestones in the identification and characterisation of these cells. Recent studies highlight RCs’ quantitative and qualitative changes in response to various pollutants, such as heavy metals, organic chemicals, and microplastics, underscoring their utility as biomarkers for environmental monitoring and assessment of ecological health. The underlying mechanisms that govern RC responses are explored, noting the limited research available at the molecular level, which hampers a comprehensive understanding of their functionality. Despite this, the consistent patterns of RC responses position them as valuable indicators of environmental health within the One Health framework, linking aquatic ecosystem integrity to broader human and animal health concerns. Additionally, the potential equivalence of RCs in other vertebrates is examined, which may provide insights into their evolutionary significance and functional roles across different species. The urgent need for further research is emphasised to enhance the understanding of RC biology and its applications in toxicology and environmental pathology.
Assessment of the Physicochemical Properties of Ultrafine Particles (UFP) from Vehicular Emissions in a Commercial Parking Garage: Potential Health Implications
Authors: Vaze Nachiket , Calderon Leonardo , Tsiodra Irini , Mihalopoulos Nikolaos , Serhan Charles N. , Levy Bruce D. , Demokritou Philip
Published: November 2024

Vehicular emissions are a major culprit in the rise of urban air pollution. The particulate matter (PM) emitted from vehicular sources includes primarily ultrafine particles (UFPs) with aerodynamic diameters less than 0.1 µm (PM0.1) and is linked to adverse respiratory and cardiovascular health effects. Despite this knowledge, few exposure assessment studies exist that detail the physicochemical properties of PM in parking garages. In this study, airborne PM emitted by vehicles in a parking garage of a hospital in New Jersey was sampled, during winter and summer seasons, and physicochemically characterized. The results indicate that the mass concentrations of the UFPs in the garage were 2.51 µg/m3 and 3.59 µg/m3, respectively. These UFPs contained a large percentage of elemental carbon and toxic elements. They also contained polycyclic aromatic hydrocarbons (PAHs), having deleterious health effects. An inhalation particle modeling revealed that 23.61% of these UFPs are deposited in the pulmonary region of the lung, translating to a dose of 10.67 µg for winter and 15.25 µg for summer, over a typical 40 h work week. These high deposited levels of UFPs and their complex chemistry levels further warrant the need for toxicological assessment of UFPs related to vehicular emissions.
Black Hole Solutions in Non-Minimally Coupled Weyl Connection Gravity
Authors: Lima Maria Margarida , Gomes Cláudio
Published: November 2024

Schwarzschild and Reissner–Nordstrøm black hole solutions are found in the context of a non-minimal matter–curvature coupling with Weyl connection both in vacuum and in the presence of a cosmological constant-like matter content. This model has the advantage of an extra force term which can mimic dark matter and dark energy, and simultaneously following Weyl’s idea of unifying gravity and electromagnetism. In fact, vacuum Schwarzschild solutions differ from the ones in a constant curvature scenario in f(R) theories, with the appearance of a coefficient in the term that is linear in r and a corrected “cosmological constant”. Non-vacuum Schwarzschild solutions formally have the same solutions as in the previous case, with the exception being the physical interpretation of a cosmological constant as the source of the matter Lagrangian and not a simple reparameterization of the f(R) description. Reissner–Nordstrøm solutions cannot be found in a vacuum, only in the presence of matter fields, with the result that the solutions also differ from the constant curvature scenario in f(R) theories by the term being linear in r, the corrected/dressed charge, and the cosmological constant. These results have bearings on future numerical simulations for black holes and gravitational waves in next-generation wavelet templates.
Required Field of View of a Sensor for an Advanced Driving Assistance System to Prevent Heavy-Goods-Vehicle to Bicycle Accidents
Authors: Tomasch Ernst , Hoschopf Heinz , Ausserer Karin , Rieß Jannik
Published: November 2024

Accidents involving cyclists and trucks are among the most severe road accidents. In 2021, 199 cyclists were killed in accidents involving a truck in the EU. The main accident situation is a truck turning right and a cyclist going straight ahead. A large proportion of these accidents are caused by the inadequate visibility in an HGV (Heavy Goods Vehicle). The blind spot, in particular, is a significant contributor to these accidents. A BSD (Blind Spot Detection) system is expected to significantly reduce these accidents. There are only a few studies that estimate the potential of assistance systems, and these studies include a combined assessment of cyclists and pedestrians. In the present study, accident simulations are used to assess a warning and an autonomously intervening assistance system that could prevent truck to cyclist accidents. The main challenges are local sight obstructions such as fences, hedges, etc., rule violations by cyclists, and the complexity of correctly predicting the cyclist’s intentions, i.e., detecting the trajectory. Taking these accident circumstances into consideration, a BSD system could prevent between 26.3% and 65.8% of accidents involving HGVs and cyclists.
Improving Hydrological Simulations with a Dynamic Vegetation Parameter Framework
Authors: Gu Haiting , Ke Yutai , Bai Zhixu , Ma Di , Wu Qianwen , Sun Jiongwei , Yang Wanghua
Published: November 2024

Many hydrological models incorporate vegetation-related parameters to describe hydrological processes more precisely. These parameters should adjust dynamically in response to seasonal changes in vegetation. However, due to limited information or methodological constraints, vegetation-related parameters in hydrological models are often treated as fixed values, which restricts model performance and hinders the accurate representation of hydrological responses to vegetation changes. To address this issue, a vegetation-related dynamic-parameter framework is applied on the Xinanjiang (XAJ) model, which is noted as Eco-XAJ. The dynamic-parameter framework establishes the regression between the Normalized Difference Vegetation Index (NDVI) and the evapotranspiration parameter K. Two routing methods are used in the models, i.e., the unit hydrograph (XAJ-UH and Eco-XAJ-UH) and the Linear Reservoir (XAJ-LR and Eco-XAJ-LR). The original XAJ model and the modified Eco-XAJ model are applied to the Ou River Basin, with detailed comparisons and analyses conducted under various scenarios. The results indicate that the Eco-XAJ model outperforms the original model in long-term discharge simulations, with the NSE increasing from 0.635 of XAJ-UH to 0.647 of Eco-XAJ-UH. The Eco-XAJ model also reduces overestimation and incorrect peak flow simulations during dry seasons, especially in the year 1991. In drought events, the modified model significantly enhances water balance performance. The Eco-XAJ-UH outperforms the XAJ-UH in 9 out of 16 drought events, while the Eco-XAJ-LR outperforms the XAJ-LR in 14 out of 16 drought events. The results demonstrate that the dynamic-parameter model, in regard to vegetation changes, offers more accurate simulations of hydrological processes across different scenarios, and its parameters have reasonable physical interpretations.
An Activity Network Design and Charging Facility Planning Model Considering the Influence of Uncertain Activities in a Game Framework
Authors: Ma Zechao , Liu Xiaoming , Wang Weiqiang , Yang Shangjiang , Yang Yuqi , Zhao Yingjie , Xia Hanqing , Wang Yuanrong
Published: November 2024

In the planning of public charging facilities and the charging activity network of users, there is a decision-making conflict among three stakeholders: the government, charging station enterprises, and electric vehicle users. Previous studies have described the tripartite game relationship in a relatively simplistic manner, and when designing charging facility planning schemes, they did not consider scenarios where users’ choice preferences undergo continuous random changes. In order to reduce the impacts of queuing phenomenon and resource idleness on the three participants, we introduce a bilateral matching algorithm combined with the dynamic Huff model as a strategy for EV charging selection in the passenger flow problem based on the three-dimensional activity network of time–space–energy of users. Meanwhile, the Dirichlet distribution is utilized to control the selection preferences on the user side, constructing uncertain scenarios for the choice of user charging activities. In this study, we establish a bilevel programming model that takes into account the uncertainty in social responsibility and user charging selection behavior. Solutions for the activity network and facility planning schemes can be derived based on the collaborative relationships among the three parties. The model employs a robust optimization method to collaboratively design the charging activity network and facility planning scheme. For this mixed-integer nonlinear multi-objective multi-constraint optimization problem, the model is solved by the NSGA-II algorithm, and the optimal compromise scheme is determined by using the EWM-TOPSIS comprehensive evaluation method for the Pareto solution set. Finally, the efficacy of the model and the solution algorithm is illustrated by a simulation example in a real urban space.
Navigating Changes: Community Resettlement in Namibia Due to Nkurenkuru’s Urban Expansion
Authors: Sinalumbu Annastasia , Venditto Bruno
Published: November 2024

This study critically investigates the socio-economic effects of urban expansion and forced relocation on peri-urban communities in Nkurenkuru, Namibia. Urban expansion in middle-income countries often has negative impacts on peri-urban and rural communities. Urban expansion leads to the displacement of such communities, and this study focuses on the socio-economic effects of such urbanization-induced displacement. This study used a qualitative research design, with in-depth interviews to chart the effects of relocation on community life and livelihoods. Findings reveal that before relocation, community members were involved in several land-use-related socio-economic activities. Relocation has worsened their living conditions with a significant drop in household income, financial stability, food security, and their access to vital services. Other findings include insufficient support from municipalities during the relocation process. This study shows the socio-economic repercussions of relocation and the importance of community consultations and participation in the urban expansion process.
How do GPs communicate the urgent suspected cancer referral pathway to patients? A qualitative study of GP-patient consultations
Authors: Russell Jessica , Boswell Laura , Ip Athena , Harris Jenny , Singh Hardeep , Meyer Ashley , Giardina Traber D , Bhuiya Afsana , Whitaker Katriina , Black Georgia
Published: November 2024

Background

The UK National Institute for Health and Care (NICE) recommends that GPs inform patients referred onto the Urgent Suspected Cancer (USC) pathway about what to expect from the service. However, there is a lack of evidence on patient experience and information needs at the point of referral. It is a challenge for GPs to communicate the reasons for referral and provide reassurance.

Aim

This study aimed to examine how GPs communicate a potential cancer diagnosis and USC referral in practice.

Design & setting

This is a secondary analysis of a dataset of 23 audio-recorded GP-patient consultations, selected from a larger dataset of 200 consultations collected in Surrey and London, UK in 2017-2018. The consultations were selected based on inclusion criteria related to cancer discussions.

Method

This is a qualitative analysis of video recordings of face to face patient consultations.

Results

We found that most GPs informed patients that they might have cancer and engaged in reassurance using personalised risk statements. Some GPs avoided all mention of cancer, using symptom-led language instead. GPs focused on communicating practical rather than support-based information. While most GPs informed patients that they would be seen by a specialist within two weeks, few discussed patients’ support needs during the referral period.

Conclusion

Clear communication about cancer in primary care is promoted in UK policy, and has an important role driving patient investigations attendance. The study highlights the need for further research on communication practices around cancer referral to improve patient understanding and experience. Our recommendations for enhanced communication may improve patient outcomes by optimising routes to diagnosis via primary care.
Assessment of Non-destructive Methods for Evaluating the Performance of Surface Treatments on Concrete
Authors: Nwaubani Sunday O. , Gilayeneh Victor S.
Published: November 2024

Hydrophobic films are frequently applied to concrete structures to reduce water ingress and provide protection against weathering and chemical attacks. However, these waterproof coatings tend to deteriorate with time and require reapplication to maintain their effectiveness. Deciding when the retreatment should be applied and how to assess existing treated surfaces can sometimes be a challenging task for owners of concrete structures. Consequently, this paper presents findings on the assessment of absorption characteristics of surface-treated concrete using several techniques. Three non-destructive test methods were used to evaluate the efficacy of surface treatment under different curing conditions and with varying numbers of treatments. The methods employed were the initial surface absorption test, Karsten tube test and electrical conductivity test (wet method). The results show that the employed methods were all able to distinguish between treated and untreated surfaces. Treated samples exhibited better resistance to water absorption and electrical conductivity than untreated ones, and the absorption characteristics were found to be influenced by the number of treatments and curing regimes. All three test methods were effective in assessing surface treatment quality, with the Karsten tube test being the most practical for in-situ evaluation due to the simplicity of its setup.
Air-Stable Li
2
C
6
O
6
and Li
4
C
6
O
6
as High-Efficiency Lithium Compensation Additives in Cathode
Authors: Cao Mengyan , Ma Bingyun , Zhang Simeng , Li Huajun , Chu Hang , Gao Yurui , Cheng Tao , Wang Xuefeng , Sun Xueliang , Wang Zhaoxiang , Chen Liquan
Published: November 2024

The continuous lithium consumption during cycling severely reduces the energy density of the lithium battery, and thus, lithium compensation is essential. Herein, Li

x

C
6
O
6
(
x
= 2, 4) was proposed as an air-stable high-efficiency sacrificial additive in the cathode to compensate for the lost lithium ions in solid-state lithium batteries. Below a delithiation (oxidation) potential as low as 3.8 V, Li
2
C
6
O
6
can release most of its Li
+
ions (294.8 mAh g
−1
in theory). Similarly, Li
4
C
6
O
6
is also characteristic of low oxidation potential and high delithiation capacity (547.8 mAh g
−1
in theory). The feasibility of using Li

x

C
6
O
6
as the self-sacrificial additive in the cathode was verified with the marked increase of the initial charge capacity of the Li||LiFePO
4
(half) cells and the initial discharge capacity of Cu||LiFePO
4
(full) cells, and the improved electrolyte/cathode interface stability and interface contact, in the solid-state poly(ethylene oxide)-lithium bis(trifluoromethane)sulfonimide (PEO-LiTFSI) electrolyte. In addition, the structure and delithiation of Li

x

C
6
O
6
and the impacts of its decomposition product on the PEO-LiTFSI solid electrolyte were also evaluated on the basis of the comprehensive physical characterizations and the density functional theory (DFT) calculations. These findings open a new avenue for elevating the energy density and/or elongate the lifespan of the solid-state secondary batteries.
Carbon-Encrusted SnS
2
Decorated on MXene Nanosheets for Advanced Li-Ion Battery Anodes
Authors: Xu Xuezhi , Feng Dong , You Liangsa , Xie Yuhui , Wu Feng , Zhu Yuanzhi , Mei Yi , Xie Delong
Published: November 2024

SnS
2
stands out as a promising lithium storage anode due to its high specific capacity, low voltage plateau, and cost-effectiveness. However, practical applications are hindered by significant limitations, including low electrical conductivity, volumetric expansion, and sulfur dissolution. In this study, carbon-encrusted SnS
2
nanoparticles are anchored onto few-layered MXene via a straightforward ultrasound-assisted ball milling method, yielding SnS
2
@C/MXene nanocomposites. Kinetic experiments demonstrate that this innovative ball milling approach facilitates the infiltration of SnS
2
@C into the distorted sites of MXene, effectively curbing interlayer stacking, expediting ion transfer, and bolstering the pseudocapacitance contribution of the anode. Concurrently, the few-layered MXene intertwines with SnS
2
@C, effectively mitigating the volume fluctuations of the active SnS
2
@C. As a lithium-ion battery (LiB) anode, SnS
2
@C/MXene exhibits a specific capacity of 867.1 mAh g
−1
after 100 cycles at 0.1 A g
−1
. Moreover, the SnS
2
@C/MXene anode demonstrates remarkable reversible specific capacities of 1,162.9, 1,001.0, 838.1, 724.8, 591.5, and 413.9 mAh g
−1
under 0.1, 0.2, 0.5, 1, 2, and 5 A g
−1
, respectively, surpassing those of recently reported SnS

x

-based LiB anodes. These findings underscore the significant potential of SnS
2
@C/MXene nanocomposites for high-performance LiBs.