Physical Context Research Articles

Computational study of effect of hybrid nanoparticles on hemodynamics and thermal transfer in ruptured arteries with pathological dilation

The intended research aims to explore the convection phenomena of a hybrid nanofluid composed of gold and silver nanoparticles. This research is novel and significant because there is a lack of existing studies on the flow behavior of hybrid nanoparticles with important physical properties of blood base fluids, especially in the case of sidewall ruptured dilated arteries. The implementation of combined nanoparticles rather than unadulterated nanoparticles is one of the most crucial elements in boosting the thermal conduction of fluids. The research methodology encompasses the utilization of advanced bio-fluid dynamics software for simulating the flow of the nanofluid. The physical context elucidates the governing equations of momentum, mass, momentum, and energy in terms of partial differential equations. The results are displayed in both tabular and graphical forms to demonstrate the numerical and graphical solutions. The effect of physical parameters on velocity distribution is illustrated through graphs. Furthermore, the study’s findings are unique and original, and these computational discoveries have not been published by any researcher before. The finding implies that utilizing hybrid nanoparticles as drug carriers holds great promise in mitigating the effects of blood flow, potentially enhancing drug delivery, and minimizing its impact on the body.

A study of street trees and their effects on pedestrians’ perceptions during summer

Poor thermal and light climates can have significant negative effects on human living qualities. Exploring sustainable ways to address these issues is an urgent task, and at the street level, trees pose a potential solution. This study aimed to determine the effect of street trees on pedestrians’ physiological comfort under different conditions. This was accomplished by field surveys, including questionnaires distributed at several forested streets in the Qingbaijiang District (QBD), a suburban area of Chengdu, China. Data analysis showed that people had different responses towards either physical or meteorological factors. They responded differently to various environmental factors, and the responses varied over physical and meteorological contexts. It was found that pedestrians’ neutral temperature and lighting levels were 28.64 °C, as indicated by physiologically equivalent temperature (PET, °C), and 0.91 klx, as indicated by illumination (klx). The percentage of people in favor of larger tree crowns increased considerably for PET (from 60 % at 30 °C to 90 % at 45 °C) and illumination (from 30 % at 0 klx to 100 % at 20 klx) elevations under small-sized trees. People preferred larger crowns and shorter trunks as they made them more comfortable. Their responses were also different for various PETs and daily periods. This is evident from the change in either thermal sensation vote (TSV) or overall comfort vote (OCV). The increase of either PET or illumination might result in TSV increase and OCV decrease. In relative terms, tree crown sizes (diameter, TCD) had a significant influence on pedestrians’ comfort. Increasing TCD by 1 m resulted in a TSV reduction of 0.449 and/or an OCV increase of 0.475 (sig. < 0.001). Results from this study may aid in future urban design and forestation works with the goal of improving pedestrians’ comfort.

ARPocketLab—A Mobile Augmented Reality System for Pedagogic Applications

The widespread adoption of digital technologies in educational systems has been globally reflecting a shift in pedagogic content delivery that seems to fit modern generations of students while tackling relevant challenges faced by the current scholar context, e.g., progress traceability, pedagogic content fair access and intuitive visual representativeness, mobility issue mitigation, and sustainability in crisis situations. Among these technologies, augmented reality (AR) emerges as a particularly promising approach, allowing the visualization of computer-generated interactive data on top of real-world elements, thus enhancing comprehension and intuition regarding educational content, often in mobile settings. While the application of AR to education has been widely addressed, issues related to performance interaction and cognitive performance are commonly addressed, with lesser attention paid to the limitations associated with setup complexity, mostly related to experiences configurating tools, or contextual range, i.e., technical/scientific domain targeting versatility. Therefore, this paper introduces ARPocketLab, a digital, mobile, flexible, and scalable solution designed for the dynamic needs of modern tutorship. With a dual-interface system, it allows both educators and students to interactively design and engage with AR content directly tied to educational outcomes. Moreover, ARPocketLab’s design, aimed at handheld operationalization using a minimal set of physical resources, is particularly relevant in environments where educational materials are scarce or in situations where remote learning becomes necessary. Its versatility stems from the fact that it only requires a marker or a surface (e.g., a table) to function at full capacity. To evaluate the solution, tests were conducted with 8th-grade Portuguese students within the context of Physics and Chemistry subject. Results demonstrate the application’s effectiveness in providing didactic assistance, with positive feedback not only in terms of usability but also regarding learning performance. The participants also reported openness for the adoption of AR in pedagogic contexts.

Planetarium pedagogy and technical learning experience: an investigation from instructional perspectives

The research focused on the National Planetarium Kuala Lumpur’s education programs, investigating the types and target audiences. It examined the educational theories and strategies used, including multiple intelligence theory and cooperative learning. The study also explored the alignment of astrophysics in Pearson Edexcel International General Certificate of Secondary Education (IGCSE) Physics with the Planetarium’s programs. Document analysis and participant observation were employed. The results revealed two program types: on-site and online. The programs showed alignment with IGCSE Physics and utilized theories like social cognitive theory. The National Planetarium positively impacted students through multi-intelligence theory, sociocultural theory, experiential theory, and constructivism. Gamification and group activities enhanced the learning experience. The Planetarium’s ability to simulate astronomical events made it an effective medium for instructional science institutions. Overall, the study highlighted the diverse education programs of the National Planetarium Kuala Lumpur, their alignment with IGCSE Physics, and their positive impact on students’ personal, physical, and social contexts.

The Effects of Contextual Interference Learning on the Acquisition and Relatively Permanent Gains in Skilled Performance: A Critical Systematic Review with Multilevel Meta-Analysis

The paradoxical effects of contextual interference (CI) assume that high CI practices hinder performances during the acquisition phase of learning, while providing more permanent enhancement during the retention phase. This meta-analysis evaluates the possible generalizability of the CI phenomenon in physical education (PE) and sports contexts, with regard to the acute and relatively permanent gains in performance outcomes. A total of 933 records from five electronic databases were screened using the PICOS criteria, of which 36 studies were selected. Outcomes evaluating the performance changes (Δ) from pre-post, post-retention, and pre-retention tests were included. Out of 183 overall pooled outcomes, Δ in only 37 performance outcomes (20%) agreed with the paradoxical CI effects on the acquisition or the relatively permanent gains. No statistically significant overall difference was detected for “Δ pre-post” between low (blocked) (28.9 ± 59.5%) and high (random/serial) (27.9 ± 52.8%) CI (effect size (ES) = 0.1, p = 0.35). An overall significant difference (p = 0.001) in favor of high CI practice was detected in “Δ post-retention.” However, this difference was not large enough (ES = − 0.35) to produce an overall greater long-term gain following high (24.56 ± 4.4%), compared to low (21.9 ± 9.8%) CI (ES = − 0.13, p = 0.18). Out of 10 tested variables, only the age significantly moderated both CI effects (p < 0.0001 for both Δ pre-post and Δ pre-retention) and the female proportion significantly moderated only the first CI effect (p = 0.009 for Δ pre-post). These findings found very limited evidence supporting the recommendation to employ high CI practices to gain a longer-term performance advantage, calling into question the generalization of the CI model to PE and sports practices. High-quality follow-up research evaluating alternative motor-learning models are therefore needed.

MMpowerment: Empowering patients with multiple myeloma for shared decision-making by developing an intervention to integrate personal preferences into digital care pathways

ObjectiveAs part of a quality improvement initiative in the context of value-based health care we aimed to optimize the shared decision-making (SDM) process in the care pathway for Multiple Myeloma as part of a digital care pathway (DCP). For this, more insight was needed in health care professionals’ (HCPs’) perspectives on SDM, and how SDM elements could be addressed in a DCP for MM to facilitate HCPs’ performance of SDM. MethodsHCPs were interviewed as per the theory of planned behaviour and the model of organizational context and SDM (phase 1). Multidisciplinary development sessions were organized to discuss concepts of the solution with HCPs (phase 2). The solution was evaluated with two patients from the quality improvement team. ResultsIn phase 1, ten interviews were held. HCPs’ attitudes and the subjective norm towards SDM were positive, and the intention to perform SDM was high. The clinical environment (physical context, disease characteristics, assumptions about patient characteristics, and workflows) for MM posed challenges on the actual SDM behavior. Education and use of the DCP to create awareness of SDM were seen as possible facilitators for SDM. A prepared and active patient would facilitate the SDM process. In phase 2, three concept solutions were developed before arriving at the final solution. The final solution consisted of three elements to incorporate SDM steps in the DCP: 1) creating patient awareness and activation with two questions about their preferences prior to a consultation, 2) visualisation of preferences centrally in the DCP to trigger HCP to discuss them, 3) monitoring and improving SDM with patient-questionnaires after decision-making. Patients and HCPs were willing to implement it. ConclusionHCPs intention to engage in SDM was high, but their actual behaviour was challenged by the clinical environment. A 3-element DCP-based intervention was developed to increase SDM. Patient or public contributionInput on the solution was obtained from end-users including two patients and ten healthcare professionals.

NONLINEARITY AND MEMORY EFFECTS: THE INTERPLAY BETWEEN THESE TWO CRUCIAL FACTORS IN THE HARRY DYM MODEL

This study investigates the nonlinear time-fractional Harry Dym ([Formula: see text]) equation, a model with significant applications in soliton theory and connections to various other nonlinear evolution equations. The Harry Dym ([Formula: see text]) equation describes the propagation of nonlinear waves in various physical contexts, including shallow water waves, nonlinear optics, and plasma physics. The fractional-order derivative introduces a memory effect, allowing the model to capture nonlocal interactions and long-range dependencies in the wave dynamics. The primary objective of this research is to obtain accurate analytical solutions to the [Formula: see text] equation and explore its physical characteristics. We employ the Khater III method as the primary analytical technique and utilize the He’s variational iteration ([Formula: see text]) method as a numerical scheme to validate the obtained solutions. The close agreement between analytical and numerical results enhances the applicability of the solutions in practical applications of the model. This research contributes to a deeper understanding of the [Formula: see text] equation’s behavior, particularly in the presence of fractional-order dynamics. The obtained solutions provide valuable insights into the complex interplay between nonlinearity and memory effects in the wave propagation phenomena described by the model. By shedding light on the physical characteristics of the [Formula: see text] equation, this study paves the way for further investigations into its potential applications in diverse physical settings.

Creating environments for risky play: Understanding the interplay between parents, play professionals and policymakers

AbstractPlaying outside is essential to growing up actively, socially and in good health. It is theorized that children particularly benefit from risky play situations. Opportunities for risky play, however, have declined in the last decades. Based on interviews with parents, play professionals and municipal policymakers in the Netherlands, we illustrate how environments for children's (risky) play are produced through the interplay between these three groups of stakeholders. Beliefs, attitudes and decisions of these stakeholders influence choices on risk and safety, which, in turn, become manifest in the social and physical context for play.

Hidden dual mathematical symmetry in the genetic code

We describe the genetic code in terms of numbers that help us to find several dual symmetries. Our formulation can even be rewritten regarding the up-down and right-left dual concepts. We argue that our work may bring many topological tools to studying the DNA molecule, including the Grassmann-Plücker coordinates, which are important in mathematical and physical contexts.

‘Commensal scenes’: Problematizing presence in restaurants in the digital age

As guests’ norms and behaviours are rapidly evolving in the digital world, explicitly problematizing commensality, a term designating the social aspects of eating with others, is needed in hospitality contexts. This article introduces the "commensal scene" concept, applying Social presence theory to redefine commensality in dining settings amidst digital-age transformations. Challenging traditional views of physical co-presence, it explores the multi-spatial, multi-levelled dynamics of being 'with others' in both physical and digital contexts. The model allows for a deeper understanding of how digital media reshapes presence beyond mere spatial factors. It highlights the evolving nature of guest behaviours and norms, focusing on the interplay between different communication mediums and responsive social spaces. This innovative approach offers new insights into emerging commensal practices, proposing a framework for designing relevant dining experiences in a digitally-influenced world.

Scaling carbon removal systems: deploying direct air capture amidst Canada’s low-carbon transition

Carbon dioxide removal (CDR) technologies, such as direct air carbon capture and storage (DACCS), will be critical in limiting the rise of the average global temperature over the next century. Scaling up DACCS technologies requires the support of a complex array of policies and infrastructure across multiple overlapping policy areas, such as climate, energy, technology innovation and resource management. While the literature on DACCS and other CDR technologies acknowledges the path-dependent nature of policy development, it has tended to focus on abstract policy prescriptions that are not rooted in the specific political, social and physical (infrastructural) context of the implementing state. To address this gap, this paper provides a country-level study of the emerging DACCS policy regime in Canada. Drawing on the existing literature that identifies idealized (acontextual) policy objectives that support DACCS development and effective regulation, we identify the actionable policy objectives across six issue domains: general climate mitigation strategies; energy and resource constraints; carbon storage and transport regulation and infrastructure; financing scale-up and supporting innovation; removal and capture technology availability and regulation; and addressing social acceptability and public interest. Using a database of Canadian climate policies (n = 457), we identify policies within the Canadian (federal and provincial) policy environment that map to the idealized policy objectives within each of these domains. This exercise allows us to analyze how key policy objectives for DACCS development are represented within the Canadian system, and enables us to identify potential niches, and landscape influences within the system, as well as gaps and potential barriers to the system transition process. This paper contributes to our understanding of national DACCS policy development by providing a framework for identifying components of the DAC system and linking those components to desired policy outcomes and may provide a basis for future cross-country comparisons of national-level DACCS policy.

Examining associations between physical activity context and children meeting daily physical activity guidelines: the role of outdoor play, sports, and other organized activities.

Less than one-quarter of US children meet physical activity (PA) guidelines. Understanding the context in which PA occurs and how these contexts may play a role in meeting PA guidelines is an essential step toward developing effective behavioral interventions. The purpose of this study was to examine associations between PA context (sports participation, participation in other organized physical activities, active travel to school, and outdoor play) and the number of days children met PA guidelines in a representative sample of children living in Texas. We analyzed cross-sectional data from a statewide sample of fourth-grade children in Texas who completed the 2019-2020 Texas School Physical Activity and Nutrition (Texas SPAN) survey. The Texas SPAN survey was designed to monitor the statewide prevalence of overweight/obesity among school children and assess habitual self-reported obesity-related behaviors, including diet and PA. Weighted Poisson regression models were employed to examine the associations between PA contexts (sports participation, participation in other organized physical activities, active travel to school, and outdoor play) and the number of days children met PA guidelines, adjusting for sex, race/ethnicity, overweight/obesity, urban-rural status, and economic disadvantage. A total of 16.7% of fourth-grade children met physical activity guidelines every day during the week (mean age = 9.4 ± 0.6 years; female = 48.7, 51.8% Hispanic, mean days meeting PA guideline = 3.6 ± 2.3 days). One in ten (11.2%) children did not meet daily PA guidelines on any day of the week, and 72.1% met them between 1 and 6 days. Participating in sports (b = 0.22, 95%CI:0.14, 0.30), any other organized physical activities (b=0.13, 95%CI:0.017, 0.19), and playing outdoors 1-3 days (b = 0.25, 95%CI:0.04, 0.46) and 4-7 days in the past week (b = 0.77, 95%CI:0.57, 0.97) was significantly and positively associated with the number of days children met PA guidelines. Participating in sports, participating in other organized physical activities, and playing outdoors may beneficially influence the number of days children meet PA guidelines. PA programs should consider these contextual factors and investigate how to promote organized activities and outdoor play effectively and appropriately among children.

Causal self-dual electrodynamics

Many theories of nonlinear electrodynamics (NLED) that have been proposed in physical contexts involving strong fields are causal for weak fields but acausal for strong fields. We show that for any such theory there is a unique causal and self-dual (electromagnetic duality invariant) theory with the same Lagrangian at zero magnetic field. This follows from a construction of the general causal self-dual NLED, which shows that strong-field causality is implied by weak-field causality for self-dual theories. We illustrate our results with explicit examples. Published by the American Physical Society 2024

Lexical Expressions of Motion in Physical Environments a Cognitive Linguistics Perspective

This study aims to delve into the interaction between motion verbs, manners, and paths in the Vietnamese language to look at the lexicalization of motion occurrences. Utilizing Talmy's lexicalization patterns for cognitive linguistics, the study seeks to understand how Vietnamese encodes and conceptualizes motion events in a variety of physical contexts, such as the air, water, and land. A mixed-methods approach is used in this work, integrating qualitative analysis of annotated textual data with quantitative frequency analysis. Vietnamese has a rich system of motion verbs that may be paired with manner and path expressions to produce complex and subtle descriptions of movement, according to the research. The language displays intricate differences when describing the direction, velocity, and kind of vehicle of motion, in addition to various linear, curved, vertical, circular, and multidirectional routes. The complex interplay between language, cognition, and the embodied experience of motion is highlighted by this linguistic variety, which is a reflection of Vietnamese speakers' astute observation and interpretation of the physical world. The work adds to our knowledge of how language organizes and expresses the basic idea of motion and provides insights into the cognitive and cultural bases of language expression.

A reduced kinetic method for investigating non-local ion heat transport in ideal multi-species plasmas

A reduced kinetic method (RKM) with a first-principles collision operator is introduced in a 1D2V planar geometry and implemented in a computationally inexpensive code to investigate non-local ion heat transport in multi-species plasmas. The RKM successfully reproduces local results for multi-species ion systems and the important features expected to arise due to non-local effects on the heat flux are captured. In addition to this, novel features associated with multi-species, as opposed to single species, cases are found. Effects of non-locality on the heat flux are investigated in mass and charge symmetric and asymmetric ion mixtures with temperature, pressure, and concentration gradients. In particular, the enthalpy flux associated with diffusion is found to be insensitive to sharp pressure and concentration gradients, increasing its significance in comparison to the conductive heat flux driven by temperature gradients in non-local scenarios. The RKM code can be used for investigating other kinetic and non-local effects in a broader plasma physics context. Due to its relatively low computational cost it can also serve as a practical non-local ion heat flux closure in hydrodynamic simulations or as a training tool for machine learning surrogates.

Current state of the art and future directions: Augmented reality data visualization to support decision-making

Augmented Reality (AR), as a novel data visualization tool, is advantageous in revealing spatial data patterns and data-context associations. Accordingly, recent research has identified AR data visualization as a promising approach to increasing decision-making efficiency and effectiveness. As a result, AR has been applied in various decision support systems to enhance knowledge conveying and comprehension, in which the different data-reality associations have been constructed to aid decision-making.However, how these AR visualization strategies can enhance different decision support datasets has not been reviewed thoroughly. Especially given the rise of big data in the modern world, this support is critical to decision-making in the coming years. Using AR to embed the decision support data and explanation data into the end user’s physical surroundings and focal contexts avoids isolating the human decision-maker from the relevant data. Integrating the decision-maker’s contexts and the DSS support in AR is a difficult challenge. This paper outlines the current state of the art through a literature review in allowing AR data visualization to support decision-making.To facilitate the publication classification and analysis, the paper proposes one taxonomy to classify different AR data visualization based on the semantic associations between the AR data and physical context. Based on this taxonomy and a decision support system taxonomy, 37 publications have been classified and analyzed from multiple aspects. One of the contributions of this literature review is a resulting AR visualization taxonomy that can be applied to decision support systems. Along with this novel tool, the paper discusses the current state of the art in this field and indicates possible future challenges and directions that AR data visualization will bring to support decision-making.

An Exploratory Study About Child-Friendly Trips

The main idea of child-friendly tourism is to consider children's physical and psychological health in all kinds of travel and holiday experiences. Also, it aims to arrange activities in line with children's development skills. Child-friendly trips are an essential part of these skills, as they support personal, sociocultural, and physical contexts for children. Tour guides are one of the most critical companions that support these contexts. This paper tries to uncover how child-friendly trips are done from the perspective of tour guides. It aims to reveal child-friendly trip interpretation, child-friendly tour guides' features, and difficulties. A qualitative research method was used, and tour guides who made domestic and daily child-friendly trips in TURKEY attended the study. Twenty-two semi-structured interviews based on content analysis were examined. The findings revealed that although child-friendly trips have the same characteristics as other group tours, they have different interpretation styles. Tour guides should have specific attributions to successfully affect the children and slog on the trip. Child-friendly tourism literature is a developing field of study with some theoretical gaps. This study contributes to the literature by offering a broader perspective of child-friendly trip context regarding tourist guides.

Building the Environment for Narrative Inquiry With Young People With Intellectual Disability

Narrative inquiry methods are central to qualitative research that seeks to understand phenomena through the lived experiences of research participants. This research used a form of narrative inquiry—storytelling, to invite four young people with intellectual disability referred to as the “story owners” to share their stories about sexuality and relationships. Through a reflexive approach, this article unpacks the relational and physical contexts that surrounded the narrative inquiry methods, which the researchers describe as the narrative environment. In this narrative environment, each story owner co-developed their story with an academic researcher. The research found that the key components of the narrative environment which were co-created somewhat differently by each story owner were space and place, objects, people, and relationships and communication. Take home messages provided in this research can assist novice researchers and co-researchers in their methodological approach to narrative research with people with intellectual disability.

An approach towards total quality in architectural education in India track: higher education (architecture education)

Architecture Education is a service and product, which demands, quality delivery to meet the expectations of stakeholders. Architecture Education in India is over 100 years old, and the focus of higher education in India post-independence has been on addressing the demand for skilled professionals required for a developing nation. Over the years the emphasis on quantity has impacted the quality of graduates and there is a need for a quality framework for better delivery to all the stakeholders and to produce more employable graduates. Quality imperatives are critical to all contemporary societies which demand a better quality of life through holistic built environments across the globe delivered through professionals having the skill set to meet societal aspirations There is an increasing demand for trained professionals given the tremendous growth in the physical infrastructure in urban and rural areas particularly the current shortfall in the housing sector besides other tertiary sectors of the economy. The paper addresses the issues about architectural education as mandated through statutory processes prescribed by the Council of Architecture, New India’s Minimum Standards of Architectural Education in India, and the New Education Policy -2020 of the Government of India. The research process adopted identifies the gaps in the current system of education through content and perception analysis through interviews and expert opinions and suggests methodologies that can transform the current processes through an understanding of total quality principles and their application to the higher education sector. The paper evaluates various aspects of architectural education such as institutional mechanisms, the process of admission, curricula structure, pedagogy, teaching-learning processes, scheme of examinations, faculty selection process, and their growth through the perspective of total quality parameters for the service sector. The paper attempts to suggest an approach towards Total Quality in Architectural Education in India driven by quality and research, relevant to the socio-economic, cultural, and physical context of the developing economies in the 21st Century.

Empowering pro-environmental behavior in tourists through digital media: the influence of eco-guilt and empathy with nature.

In the digital economy era, leveraging digital media to foster tourists' pro-environmental behavioral intention (TPEBI) has become crucial in the field of sustainable tourism. While existing studies have mainly focused on the driving mechanism of TPEBI within physical tourism contexts, the correlation between digital media information sharing and TPEBI remains unclear. Our study employs the cognitive-affective-conative framework to construct a theoretical model, considering eco-guilt and empathy with nature as mediating variables. It aims to explore the influencing mechanism of destination environmental information sharing through digital media on TPEBI from a presence perspective. Thereby, two scenario experiments were designed: Study 1 examined the impact of different formats of destination environmental threat information presentation on digital media on the sense of presence, while Study 2 explored the influencing mechanism of presence on TPEBI based on the conclusions of Study 1. Results indicate that (1) vivid and visible presentation formats of destination environmental threat information on digital media enhance individuals' sense of presence; (2) sense of presence positively influences TPEBI; and (3) eco-guilt and empathy with nature mediate between presence and TPEBI. These findings not only contribute to theoretical and empirical research on digital media information sharing in sustainable tourism but also offer guidance for governments and tourism destinations to effectively stimulate TPEBI through digital media, achieve the sustainable development of destinations.