bluuebunny/crossref_metadata_2025 huggingface dataset:
The energy flux of three-dimensional waves in the atmosphere: Exact expression for a basic model diagnosis with no equatorial gap
Authors: Aiki Hidenori , Fukutomi Yoshiki , Kanno Yuki , Ogata Tomomichi , Toyoda Takahiro , Nakano Hideyuki
Published: August 2021

A model diagnosis for the energy flux of off-equatorial Rossby waves in the atmosphere has previously been done using quasi-geostrophic equations and is singular at the equator. The energy flux of equatorial waves has been separately investigated in previous studies using a space-time spectral analysis or a ray theory. A recent analytical study has derived an exact universal expression for the energy flux which can indicate the direction of the group velocity for linear shallow water waves at all latitudes. This analytical result is extended in the present study to a height-dependent framework for three-dimensional waves in the atmosphere. This is achieved by investigating the classical analytical solution of both equatorial and off-equatorial waves in a Boussinesq fluid. For the horizontal component of the energy flux, the same expression has been obtained between equatorial waves and off-equatorial waves in the height-dependent framework, which is linked to a scalar quantity inverted from the isentropic perturbation of Ertel’s potential vorticity. The expression of the vertical component of the energy flux requires computation of another scalar quantity that may be obtained from the meridional integral of geopotential anomaly in a wavenumber-frequency space. The exact version of the universal expression is explored and illustrated for three-dimensional waves induced by an idealized Madden-Julian Oscillation forcing in a basic model experiment. The zonal and vertical fluxes manifest the energy transfer of both equatorial Kelvin waves and off-equatorial Rossby waves with a smooth transition at around 10°S and around 10°N. The meridional flux of wave energy represents connection between off-equatorial divergence regions and equatorial convergence regions.
Pasteur's Quadrant as the Bridge Linking Rigor with Relevance
Authors: Smith Garnett J. , Schmidt Matthew M. , Edelen-Smith Patricia J. , Cook Bryan G.
Published: August 2021

A tension exists between educational practitioners and researchers, which is often attributed to their dichotomous and oftentimes polarizing professional ideologies or Discourse communities. When determining what works in education, researchers tend to emphasize evidence-based practices (EBPs) supported by research that is rigorous and internally valid, whereas practitioners tend to value practice-based evidence (PBE) that is relevant and externally valid. The authors argue that these separate mindsets stem from the classical view of research as being either rigorous or relevant. In his canonical Pasteur's Quadrant, Stokes (1997) proposed that rigor and relevance are complementary notions that, when merged, further the production, translation, and implementation of instructional practices that are both rigorous (i.e., evidence-based) and relevant (i.e., practice-based). The authors propose educational design research (EDR) and communities of practice (CoPs) as frameworks through which to realize the promise of Pasteur's quadrant.
Implementation Science, Professional Development, and Autism Spectrum Disorders
Authors: Odom Samuel L. , Cox Ann W. , Brock Matthew E.
Published: August 2021

The increased prevalence of autism spectrum disorders (ASD) has intensified the need for high-quality special education services designed for children and youth with ASD and their families. Implementation science provides guidance for moving innovation, such as utilizing evidence-based practices for students with ASD, into regular practice in schools. The National Professional Development Center on ASD (NPDC) incorporated the principles of implementation science, the scientific knowledge about evidence-based practices, and the measurement of program quality into an intervention approach for students with ASD. This article presents the NPDC model as an example of using implementation science to build systems of professional development that increase the quality of services and promote teachers’ use of evidence-based practices.
Fritz Tillmann, Discipleship and the Renewal of Moral Theology
Authors: Chalmers Stuart Patrick
Published: August 2021

The notion of discipleship has come to be considered an essential foundation and perspective in modern Catholic moral theology. Fritz Tillmann’s manual Die Idee der Nachfolge Christi was a landmark work in the early 20th century whose popularity led to a wide diffusion of the biblical concept of discipleship in Catholic moral theology. However, little mention is made of Tillmann in current academic writing. The article aims to explore the thought of Tillmann by outlining his understanding of Christian moral discipleship in conjunction with examples of key authors who influenced Tillmann, such as Hirscher and Linsenmann of the Tübingen School, as well as Neo-Scholastic authors who severely criticized his approach. The article concludes with a reflection on the current implications of discipleship in moral theology, calling for a greater recognition of the need for a transformative, loving relationship with Christ to fuel the desire to choose the good.
Examining Nietzsche’s Epigram: Having a Why Helps You Bear Almost Any How?
Authors: Li P. F. Jonah , Wong Y. Joel , McDermott Ryon C.
Published: August 2021

How does having purpose in life help people develop successful routes to achieve their life goals? The authors address this question in the current study by examining the relationships among U.S. college students’ purpose in life, resilience, and pathways thinking, defined as the belief that one can successfully generate plans to achieve one’s life goals. Purpose in life was positively associated with resilience and pathways. Moreover, a mediation analysis revealed that purpose in life was indirectly associated with pathways via its correlation with pathways. Based on the findings, the authors outlined a theoretical framework that explains the role of purpose in life in people’s psychological functioning.
Oscillatory Components of Psychedelic Experience
Authors: Grof Paul
Published: August 2021

As humanity has been utilizing psychedelic substances for millennia, much knowledge has already been accumulated about the exploratory potential and therapeutic power of the psychedelic-induced nonordinary states of consciousness (NSC). However, we still have only a limited understanding of the process that unfolds in mind and the brain. Only recently have systematic investigations become possible, as the myths about psychedelics are abating and the legal strictures gradually loosening. With the availability of brain imaging techniques, exciting findings have been made about the associated dynamic brain processes. Our prospective observations of spontaneously generated NSC, major mood disorders, have been elucidating another dynamic aspect, the oscillatory brain processes. The findings indicate that the NSC’s propensity is markedly increased at the peaks of the oscillatory brain activity and that the NSC entirely unfolds when the oscillations exceed their normal range. The observation that neurobiological correlates of experientially opposite NSC, melancholy and mania, appear qualitatively the same is compatible with the concept that the experiential content is emerging from nonlocal consciousness. Psychedelic experiences are triggered by the administration of the psychedelic drug. However, they are influenced by nondrug factors and molded, in particular, by the individual’s mental set and the setting of the session. The transformative process can be utilized psychotherapeutically for healing and profound inner restructuring.
Comparative study of the illumination effect on the appearances of woven fabrics composed of single and multiple colors of yarns
Authors: Chae Youngjoo
Published: August 2021

Color has been strategically used to attract consumers in the textile and clothing industry, and yarn color mixing is one of the most typical methods of imparting color to textile products. However, the fact that color appears different depending on the illumination has concerned textile designers and sellers at the point of color communication and sale. This study quantitatively analyzed how the color appearance of woven fabrics composed of single and multiple colors of yarns changes under a broad spectrum of illumination conditions. The lightness, chroma, and hue appearance values of 36 chromatic fabrics, in which red, yellow, green, and blue yarns were woven together, under 16 different illumination conditions were calculated. For the illumination conditions, correlated color temperatures (CCTs) of 2700, 4000, 5000, and 6500 K and luminance of 100, 1000, 4000, and 8000 cd/m2 were employed. The color appearance values of fabrics under the 16 light sources were compared with each other and also with their true physical colors. It was observed that the ranges of the varying lightness, chroma, and hue appearances of fabrics ranged up to 8.49, 16.24, and 27.04, respectively, indicating the huge effect of illumination on color appearance changes. In particular, the lower CCT of light sources induced the larger lightness appearance changes of fabrics from their actual physical colors. It was also found that the magnitudes of the color appearance changes of fabrics induced by light sources differed significantly according to the number of yarn colors and the overall colorimetric properties of the fabrics.
A Concept of Two Authors: Commons and Williamson on Transactions
Authors: Guedes Sebastião Neto Ribeiro , Jeronimo Rodrigo Constantino
Published: August 2021

The idea of transactions in social sciences was conceived by John Rogers Commons in the beginning of the 1920s, representing a mental instrument capable of describing capitalism and its peculiarities. On the other hand, Oliver Williamson’s approach in late 1970s reduced the concept to the mere transfer of goods and services in institutions that are or are not guided by the price system. The aim of this article is to present the characteristics of these two different approaches to the concept of transactions, evidencing the role of epistemological aspects and investigative purposes (referred to relevant research context and problem originated in it) as the causes of its metamorphosis. John Commons’ effort to build up a concept not only capable of transcending the idea of exchange but also of giving a totalising perspective to the interpretation of capitalism is emptied in Williamson’s appropriation of the term. By utilising Commons’ conception of transactions and trying to subsume it to his ‘general theory of transaction costs’, Williamson limits its scope and meaning, adjusting it without producing rupture with the neoclassical economy. This article tries to catch the vicissitudes of this concept found in both authors.

JEL: B15, B25, B31
Element-Level Optimization Module for Bridge Planning and Programming
Authors: Naji Karim , Santini-Bell Erin , Kwiatkowski Kyle
Published: August 2021

The overall objective of this research is to support state departments of transportation with their decision-making processes and transitions to performance management and performance-based planning and programming mandated by the Moving Ahead for Progress in the 21st Century Act. Accomplishing this objective requires a systematic multiobjective optimization methodology. This research proposes such a methodology, referred to as an “element-based multiobjective optimization” (EB-MOO) methodology, which produces optimal or near-optimal sets of short- and long-term intervention strategies detailed at the bridge element level for planning and programming. The methodology currently focuses on the bridge asset class and consists of five modules: (1) data processing, (2) improvement, (3) element-level optimization (ELO), (4) bridge-level optimization (BLO), and (5) network-level optimization (NLO) modules. This paper details the ELO module, specifically: the basic framework of underlying processes and concepts, the alternative feasibility screening process, optimization problem types and mathematical formulations, and the heuristic algorithm used to solve the ELO problems. The paper also includes an illustrative example using a prototyping tool developed to implement EB-MOO methodology. The example presents several ELO problems under unconstrained scenarios. The implementation demonstrated the module’s capability in producing optimal or near-optimal ELO solutions, recommending element intervention actions, predicting performance, and determining funding requirements for the specified improvement type and program year. The broader EB-MOO methodology uses the ELO results as inputs for the BLO and NLO modules.
The politics of mutiny: The Pompée at Spithead and beyond, 1797
Authors: Rogers Nicholas
Published: August 2021

This is a micro-study of the most radical ship in the Spithead mutiny of 1797, the Pompée, which experienced another mutiny soon after the Spithead confrontation was settled. The court martial papers of this singular event reveal a politically divided crew, which leads one to reconsider the dynamics of mutiny in this tumultuous year. I argue against the conventional interpretation of inside-outside influences, of pre-political seamen infiltrated by radical forces and also against reductive binaries such as mutiny versus subversion. While stressing the seamen's own capacity for collective action and their exposure to the political currents of the 1790s, I suggest the Pompée's experience illustrates the volatility of maritime protest in a rapidly changing environment in which Britain dug deep into its population, maritime and non-maritime, national and international, to man its fleets.
Labour Market Segmentation within Ethnic Economies: The Ethnic Penalty for Invisible Kurdish Migrants in the United Kingdom
Authors: Kesici Mehmet Rauf
Published: August 2021

Despite the extensive literature on the labour market outcomes of migration, little attention has been given to labour market inequalities within ethnic economies containing internal ethnicity. This article, using a field-study, multi-segmented labour market approach and the enclave hypothesis, contributes to the literature by demonstrating the key roles of different migration patterns and ethnic disparities in shaping labour market segmentation. It focuses on how and why Kurdish migrants are located in the lower segments of the labour market in their shared ethnic (migrant) economy in London. It argues that the Kurds’ underprivileged position associated with an ethnic penalty for them in the UK results from their relatively recent migration history, (un)documented asylum status and the ongoing persecution against them in Turkey. The article concludes that different migration histories, particular motivations for migration and ethnic disparities stratify migrants into distinct segments of the labour market in the country of destination.
A novel tracking control method for the distributed-drive and active-steering articulated virtual rail train
Authors: Zhang Dehua , Yang Caijin , Zhang Weihua , Cheng Yao
Published: August 2021

To realize the running control of distributed-drive and active-steering articulated virtual rail trains travelling on urban roads under non-contact virtual rail constraints, target trajectory generation and active-steering control are crucial issues. In this article, a novel tracking control method is proposed, which includes a dynamic target trajectory generation and a new active-steering tracking control system. First, a distributed-drive and active-steering articulated virtual rail train kinematics model with n-sections is derived, and then a new target trajectory generation method is proposed using data filtering and compression, coordinate transformation and spline difference, and the simulation comparison shows that the proposed method has less data storage space and high computational efficiency. Second, a new active-steering tracking control system composed of a rear axle preview active-steering controller, a front axle coordinated steering controller, and a differential-distribution controller is designed to achieve tracking control and coordinated movement of distributed-drive and active-steering articulated virtual rail train. Finally, a distributed-drive and active-steering articulated virtual rail train simulation model was constructed in ADAMS, and then simulations are performed under three rail conditions and compared with the other two methods, which show that the proposed method has good tracking control accuracy, adaptability, and superiority under various rails and different speeds.
Additive rates model for recurrent event data with intermittently observed time-dependent covariates
Authors: Lyu Tianmeng , Luo Xianghua , Huang Chiung-Yu , Sun Yifei
Published: August 2021

Various regression methods have been proposed for analyzing recurrent event data. Among them, the semiparametric additive rates model is particularly appealing because the regression coefficients quantify the absolute difference in the occurrence rate of the recurrent events between different groups. Estimation of the additive rates model requires the values of time-dependent covariates being observed throughout the entire follow-up period. In practice, however, the time-dependent covariates are usually only measured at intermittent follow-up visits. In this paper, we propose to kernel smooth functions involving time-dependent covariates across subjects in the estimating function, as opposed to imputing individual covariate trajectories. Simulation studies show that the proposed method outperforms simple imputation methods. The proposed method is illustrated with data from an epidemiologic study of the effect of streptococcal infections on recurrent pharyngitis episodes.
A survival mediation model with Bayesian model averaging
Authors: Zhou Jie , Jiang Xun , Amy Xia Hong , Wei Peng , Hobbs Brian P
Published: August 2021

Determining the extent to which a patient is benefiting from cancer therapy is challenging. Criteria for quantifying the extent of “tumor response” observed within a few cycles of treatment have been established for various types of solids as well as hematologic malignancies. These measures comprise the primary endpoints of phase II trials. Regulatory approvals of new cancer therapies, however, are usually contingent upon the demonstration of superior overall survival with randomized evidence acquired with a phase III trial comparing the novel therapy to an appropriate standard of care treatment. With nearly two-thirds of phase III oncology trials failing to achieve statistically significant results, researchers continue to refine and propose new surrogate endpoints. This article presents a Bayesian framework for studying relationships among treatment, patient subgroups, tumor response, and survival. Combining classical components of a mediation analysis with Bayesian model averaging, the methodology is robust to model misspecification among various possible relationships among the observable entities. A posterior inference is demonstrated via an application to a randomized controlled phase III trial in metastatic colorectal cancer. Moreover, the article details posterior predictive distributions of survival and statistical metrics for quantifying the extent of direct and indirect, or tumor response mediated treatment effects.
Why Does Microfinance Target Women? Empirical Evidence from Nigeria
Authors: Okesina Musiliu
Published: August 2021

Over the last three decades, microfinance has featured in the Global South development policies as a potential contributor to inclusive financial services, poverty reduction and women empowerment. However, why women are the primary customers of microfinance banks and institutions remains an ongoing research subject. This article presents a study of women in Rivers State, Nigeria, using qualitative research approach. It was found that microfinance financial inclusion objectives in Nigeria are targeted at the active poor—those who own small business and rely on group lending methodology and collateral substitutes to minimize lending risks. Of the active poor, microfinance prioritizes women because of gender stereotypes that women have more “integrity,” show more commitment to loan contracts and are more susceptible to social pressure and sanctions. Targeting women is, therefore, a deliberate and strategic policy to advance the interest of microfinance backers. Therefore, this author contends that microfinance is not a scheme that provides whole-scale financial inclusion and poverty reduction. Instead, it seeks to leverage income-generating activities of the active poor to extract profits. Consequently, the article contributes towards illuminating the role of gender and local context in microfinance practices.
Learning Through Redesigning a Game in the STEM Classroom
Authors: Rahimi Farzan Baradaran , Kim Beaumie
Published: August 2021

Background

Play is an important part of the childhood. The learning potential of playing and creating non-digital games, like tabletop games, however, has not been fully explored.

Aim

The study discussed in this paper identified a range of activities through which learners redesigned a mathematics-oriented tabletop game to develop their ideas and competencies in an integrated STEM (science, technology, engineering, and mathematics) class.

Method

Third and fourth graders worked as teams to make changes on Triominos over a period of six weeks. Considering what could be changed from the original game, each group provided a different design for Triominos to accommodate the changes introduced. We gathered data through weekly observations of two classes (about 45 learners, ranging from age eight to ten) in a west-Canada school. In this paper, we present the works of three groups of three teammates.

Results

We found that any change made by learners not only influenced mechanics, dynamics, and aesthetics of the game but also helped engage learners, encourage unconventional ideas, promote learning, and solve problems. Based on our findings, we suggest redesigning games facilitated learners deepen their understanding of mathematical concepts as part of a designed game system in STEM classes.
A Human Factors Evaluation of a Screening System for Diabetic Retinopathy Centered in Psychological Theory
Authors: Casimir Alexander T. , Pavone Adrian M. , Faircloth Abby , Khan Amina , Khawaja Ommar , Grace Landon , Fransen Stephen , McLaughlin Anne Collins
Published: August 2021

People with diabetes are at risk for diabetic retinopathy (DR), a leading cause of blindness. Early treatment can preserve sight; however, screening rates are low. We utilized psychological theories of motivation in tandem with human factors tools such as heuristic evaluation and task analysis to develop interventions to improve screening rates at a single clinic. Interventions addressed the system of screening, from the patients and their choices to clinic workers, device usability, and the clinic environment. Findings showed potential solutions to the screening issue situated within the theory of planned behavior. Future steps are to refine interventions and measure effectiveness.
The torsion of the proximal femur in cementless total hip arthroplasty: a 3-dimensional evaluation
Authors: Wettstein Michael , Mouhsine Elyazid , Aubaniac Jean-Manuel , Audigé Laurent , Ollivier Matthieu , Leyvraz Pierre-François , Argenson Jean-Noël
Published: August 2021

Introduction:

The anatomy of the proximal femur at the time of total hip arthroplasty has been widely studied but the horizontal plane was never considered, or only limited to the torsion of the femoral neck.

Methods:

Using CT-scan images from a group of 178 patients scheduled for cementless total hip arthroplasty (THA), we analysed the evolution of the torsion of the proximal femoral metaphysis, in reference to the posterior bicondylar plane of the femur. The evolution of the torsion, between 20 mm below the centre of the lesser trochanter and 20 mm above, was evaluated.

Results:

In cases of primary osteoarthritis, osteonecrosis, rheumatoid arthritis and epiphysiolysis capitis femoris, the mean torsion decreased from 46° to 20° without significant differences in average values between the different diagnoses, but important individual variations were found. In the groups of dysplasia and congenital hip dislocation, the torsion values were significantly higher, decreasing in mean from 59° to 25° and 63° to 34° respectively, and with important individual variations.

Conclusions:

These data are important when using cementless femoral stems, since an ideal fit-and-fill in the proximal femur zone has been shown to positively influence bone ingrowth of the stem. However, a strict adaptation of the stem to the medullary canal, without considering its torsion, can lead to an increased or decreased torsion of the prosthesis neck and thus to an instability of the arthroplasty. For these reasons, if a perfect adaptation of the stem to the intramedullary anatomy and an optimal reconstruction of the extramedullary anatomy are to be achieved, 3-dimensional planning should ideally be obtained for every patient. This will allow the best stem choice adapted to every single patient and every kind of anatomy.
Potentials for increasing resident wellbeing in energy renovation of multi-family social housing
Authors: Jensen S. R. , Gabel C. , Petersen S. , Kirkegaard P. H.
Published: August 2021

The paper explores potentials for increasing residents' wellbeing in multi-family social housing (MSH) undergoing energy renovation. The renovation measures needed to reach national and global climate goals are often not financially feasible when viewed in isolation. Therefore, it is relevant to identify potentials for added value, which can justify more extensive measures. This paper is based on the hypothesis that every renovation project holds potentials for added value in terms of increased resident wellbeing. Further, that it is crucial to extend current understandings of wellbeing beyond single, quantitative wellbeing parameters in order to promote more holistic, long-term sustainable renovation solutions. The paper sheds light on potentials for increased resident wellbeing based on an analysis of residents’ experience and satisfaction with gestures in the existing built environment and comparing these findings to their perceived health. The analysis is based on data collected through a mixed-methods approach in three MSH areas facing extensive renovation. The findings demonstrate and exemplify that energy renovation measures may influence a number of interrelated physiological, mental and social wellbeing aspects across scales. As such, the paper contributes with new insights, which can help promote previously neglected aspects of resident wellbeing in future energy renovation design processes.
Identification of eccentricity for disc milling cutter of indexable two sided inserts
Authors: Li Gensheng , Xian Chao , Xin Hongmin
Published: August 2021

Tool eccentricity has a significant impact on machining quality, accuracy, and operation status of machine tool. It is difficult to accurately identify tool eccentricity. In this paper, the mathematical models of instantaneous undeformed cutting thickness and cutting force considering tool eccentricity are determined by theoretical method. Based on the model, the identification method for eccentricity parameters is proposed, and the eccentricity parameters of disc milling cutter is identified. According to the identified parameters, the cutting force is verified. The results show that most of the values of measured cutting forces are greater than the predicted ones considering tool eccentricity. In the future, it is necessary to establish a new cutting force model considering both tool eccentricity and tool wear.
The influence of religious/spiritual beliefs on Malaysian hospital healthcare workers’ attitudes towards suicide and suicidal patients: a qualitative study
Authors: Siau Ching Sin , Wee Lei-Hum , Wahab Suzaily , Visvalingam Uma , Yeoh Seen Heng , Halim Nur Atikah Abdul , Ibrahim Norhayati
Published: August 2021

Background

There has been mixed findings on whether a healthcare workers’ religious beliefs contribute positively or negatively to their attitudes towards suicidal patients.

Aims

This study aims to explore qualitatively the influence of religious/spiritual beliefs on healthcare workers’ attitudes towards suicide and suicidal patients in the culturally heterogeneous Malaysian population.

Methods

Thirty-one healthcare workers from diverse religious backgrounds, professions and medical disciplines were interviewed. Thematic analysis revealed the centrality of religion in determining healthcare workers’ acceptability of suicide, specific religious beliefs that influenced their views on the right-to-die issue, perceptions of the suicidal patient’s religiousness/spirituality, and the aspects and extent of religious relevance in professional philosophy and practice.

Results

Healthcare workers who could perceive the multifactorial nature of suicide causation had a more empathetic response. There were high levels of paternalism in the care of suicidal patients, involving unsolicited religious/spiritual advice practised as a form of suicide deterrent and social support.

Conclusions

The formal integration of religious/spiritual practices into the professional care of suicidal patients was indicated.
Reliability assessment of the standby system with dependent components by bivariate exponential distributions
Authors: Yaghoubi Afshin , Gholami Peyman
Published: August 2021

In the reliability analysis of systems, all system components are often assumed independent and failure of any component does not depend on any other component. One of the reasons for doing so is that considerations of calculation and elegance typically pull in simplicity. But in real-world applications, there are very complex systems with lots of subsystems and a choice of multiple components that may interact with each other. Therefore, components of the system can be affected by the occurrence of a failure in any of the components. The purpose of this paper is to give an explicit formula for the computation of the reliability of a system with two parallel active components and one spare component. It is assumed that parallel components are dependent and operate simultaneously. Two distributions of Freund’s bivariate exponential and Marshall–Olkin bivariate exponential are used to model dependency between components. The results show that the reliability of the system with Freund’s bivariate exponential distribution has lower reliability. The circumstances that lead to them, namely load-sharing in the case of Freund, results in lower reliability. Finally, a numerical example is solved to evaluate the proposed model and sensitivity analysis is performed on the system reliability function. The obtained results show that because the proposed model is influenced by the dependency, compared to traditional models, it has the characteristic of leading to reduced time to (first) failure for achieving specified reliability.
A multi-level weighted alarm security system for passenger and checked-baggage screening
Authors: Seth Sonal , Feng Qianmei
Published: August 2021

Persistent and ever-changing threat of terrorism has led to the evolution of security systems in the air transportation industry. Passenger and checked-baggage screening prior to boarding an aircraft has become a priority for the airport security system. We propose a two-stage screening system by integrating the passenger prescreening and a multi-level checked-baggage screening. Based on the concept of the weighted k-out-of-n system, we introduce an integrated weighted alarm security screening system for a multi-level baggage screening system, where the system alarms when the total weight of its working levels is greater than a predefined system alarm threshold. To improve the security and efficiency of aviation systems, two optimization models are formulated to enhance the detection of possible threats in the passenger and baggage screening with consideration of the system life cycle cost. The optimal solutions of the threshold values are obtained for screening technologies and passenger classes to achieve the maximum security and efficiency. Numerical analysis is implemented to demonstrate the effectiveness of the proposed two-stage screening system.
Supporting educator well-being during the COVID-19 pandemic: A case study of leadership in early childhood education and care organisations
Authors: Logan Helen , McFarland Laura , Cumming and Tamara , Wong Sandie
Published: August 2021

The goal of this qualitative study was to understand the impacts of the COVID-19 pandemic on early childhood educators’ well-being in Australia and to identify strategies for supporting educator well-being throughout this crisis. Data were gathered using a multi-site case study with five Senior Managers or CEOs of early childhood education and care organisations. Using elite interviews, participants were asked how the pandemic impacted educator well-being and what strategies their organisations implemented to support educator well-being. Guided by a phenomenological framework, thematic analysis was used to interpret the interviews. Participants reported that educator well-being was negatively impacted by exposure to physical risk, fear and anxiety, financial stress and feelings of betrayal. Participants reported supporting educator well-being through crisis-planning, increased and focused communication, support for physical safety, well-being resources and programmes, and advocacy for and recognition of educators’ contributions to society . Implications for critical incident planning in ECEC are discussed.
Humility in Seminary Student Formation: A Mixed Method Community Action Study
Authors: Captari Laura E. , Tomlinson James , Sandage Steven J. , Oleson Dottie A.
Published: August 2021

This cross-sectional mixed method community action study exploring the virtue of humility was conducted as part of a collaborative practical theology project at a pluralistic, ecumenical Mainline Protestant seminary. Students ( N = 65) in a spiritual formation graduate class completed quantitative measures of humility, spiritual well-being, differentiation of self (DoS), mentalization, and mindfulness, while open-ended qualitative data captured their perspectives about the role of humility in formation. Qualitative results revealed important nuances about emerging religious leaders’ views on humility, including experiencing this virtue as (a) facilitative to their vocational growth (e.g., promoting learning, self-understanding, relational connections, and deeper spirituality), (b) challenging (e.g., self-deprecating, unnecessary, and contrary to ministry), or (c) some combination of both. Quantitative results documented positive associations between relational capacities (e.g., DoS, mentalization) and humility, and these links were mediated by mindful awareness. Implications for measuring and promoting holistic spiritual development among emerging religious leaders are discussed.
Differential Effects of Experience and Information Cues on Metacognitive Judgments About Others’ Change Detection Abilities
Authors: Ortega Jeniffer , Montañes Patricia , Barnhart Anthony , Kuhn Gustav
Published: August 2021

This study explored the interaction between visual metacognitive judgments about others and cues related to the workings of System 1 and System 2. We examined how intrinsic cues (i.e., saliency of a visual change) and experience cues (i.e., detection/blindness) affect people’s predictions about others’ change detection abilities. In Experiment 1, 60 participants were instructed to notice a subtle and a salient visual change in a magic trick that exploits change blindness, after which they estimated the probability that others would detect the change. In Experiment 2, 80 participants watched either the subtle or the salient version of the trick and they were asked to provide predictions for the experienced change. In Experiment 1, participants predicted that others would detect the salient change more easily than the subtle change, which was consistent with the actual detection reported in Experiment 2. In Experiment 2, participants’ personal experience (i.e., whether they detected the change) biased their predictions. Moreover, there was a significant difference between their predictions and offline predictions from Experiment 1. Interestingly, change blindness led to lower predictions. These findings point to joint contributions of experience and information cues on metacognitive judgments about other people’s change detection abilities.
Using mobile sensing data to assess stress: Associations with perceived and lifetime stress, mental health, sleep, and inflammation
Authors: Byrne Michelle L , Lind Monika N , Horn Sarah R , Mills Kathryn L , Nelson Benjamin W , Barnes Melissa L , Slavich George M , Allen Nicholas B
Published: August 2021

Background

Although stress is a risk factor for mental and physical health problems, it can be difficult to assess, especially on a continual, non-invasive basis. Mobile sensing data, which are continuously collected from naturalistic smartphone use, may estimate exposure to acute and chronic stressors that have health-damaging effects. This initial validation study validated a mobile-sensing collection tool against assessments of perceived and lifetime stress, mental health, sleep duration, and inflammation.

Methods

Participants were 25 well-characterized healthy young adults ( Mage = 20.64 years, SD = 2.74; 13 men, 12 women). We collected affective text language use with a custom smartphone keyboard. We assessed participants’ perceived and lifetime stress, depression and anxiety levels, sleep duration, and basal inflammatory activity (i.e. salivary C-reactive protein and interleukin-1β).

Results

Three measures of affective language (i.e. total positive words, total negative words, and total affective words) were strongly associated with lifetime stress exposure, and total negative words typed was related to fewer hours slept (all large effect sizes: r = 0.50 – 0.78). Total positive words, total negative words, and total affective words typed were also associated with higher perceived stress and lower salivary C-reactive protein levels (medium effect sizes; r = 0.22 – 0.32).

Conclusions

Data from this initial longitudinal validation study suggest that total and affective text use may be useful mobile sensing measures insofar as they are associated with several other stress, mental health, behavioral, and biological outcomes. This tool may thus help identify individuals at increased risk for stress-related health problems.
Does Social Capital Promote Garbage Classification? Evidence From China
Authors: Liu Mingwei , Feng Qingxiang
Published: August 2021

A new round of garbage classification campaign is carrying out in China. Using Chinese General Social Survey (CGSS) Data in 2013, the study focuses on the influence mechanism of social capital on garbage classification in China and the difference between urban and rural areas. Descriptive analysis, Ordered Logit model and “Coefficient clustering method” were used in this study. The results show that social capital (online social capital, social network, social trust) can effectively promote garbage classification after controlling the relevant individual characteristic variables in China. China’s garbage classification is embedded in the Chinese social environment. Further analyzing the marginal effect of social capital found that online social capital has the large marginal effect. The effect of social network is greater than the influence effect of social trust. But the marginal effect of social trust is higher than the marginal effect of social network. And social trust has the largest marginal effect. This not only makes up for the previous literature’s neglect of online social capital, marginal effect, but also illustrates the importance of online social capital. And it proves the interaction between traditional Chinese social network and modern social trust. In addition, the influence of social capital on urban and rural garbage classification is heterogeneous in China. Both social trust and social network have influence on the urban classification garbage. However, only social network have a significant influence in rural areas, and social trust has not played a role. China’s garbage classification should focus on social factors, that is, the influence of social capital. It is necessary to follow the coupling between the top-down logic of government and the bottom-up logic of society, and realize the nationwide participation. It is of great significance for promoting the sustainable development of China and the sustainable development of the world.
Investigating Teachers’ and Students’ Perceptions of Online English Learning in a Maritime Context in China
Authors: Shi Jingyi , Fan Lidong
Published: August 2021

English is required as the official working language for oceangoing seafarers across the world. In China, much time and effort has been dedicated to improving maritime students’ Maritime English (ME). However, low English proficiency is still one of the main barriers for Chinese seafarers to compete in the international maritime labor market. Online technology has introduced great opportunities for ME education in China. A deep understanding of the current status of online ME education in China is essential for enhancing its quality and effectiveness. This article investigates the current status of online ME education in China from the perspectives of Chinese maritime students and ME teachers by examining four key factors: online ME materials, online assessment and feedback, online interactions, and related online support. In total, 255 maritime students and 34 ME teachers from different maritime education and training (MET) institutions in China participated in this research. The study finds that online ME education in China was underdeveloped. Limited and simple online methods were being used in ME teaching and learning. The exam-oriented teaching mode greatly impeded the implementation of creative online methods. Many online functions had not been fully exploited and individual learning needs should be highlighted.
Exploring Factors That Influence Children’s Growth and Development During a Pandemic
Authors: Amjadi Kimiya
Published: August 2021

The potential long-term impacts of natural or man-made disasters on children and adolescents have been the subject of numerous scientific research studies over the past decades. Since the rise of the COVID-19 pandemic, however, it has become even more important to continue these investigations in order to address the special needs of our youth. While the virus itself appears to cause less pathology in them compared to adults, the effects go beyond the disease itself. The pandemic has caused extremely high levels of stress for both the children and their families. As a result, special attention has to be given to the possible long-term impacts on their growth and development. It is very important for physicians and other healthcare providers to recognize the signs and symptoms of stress and monitor for physical and mental health inequities, and to be able to provide support when help is needed. Identifying culturally effective solutions and reaching out to community based organizations or partners for resources and programs with which families identify is an important part of this healing provision. Mind-body therapies and practices such as meditation, visualization, breathing exercises, Movazeneh®, and Tamarkoz® are effective complementary therapies that can be utilized in pediatrics and help children and adolescents learn self-care skills that they could apply throughout their lives. Health providers should become educated in these safe and noninvasive techniques themselves, and consider them as possible therapeutic approaches for the treatment of stress in their pediatric patients.
What Really Motivates You? A Data-Driven Exercise and Discussion
Authors: Tosti-Kharas Jennifer , Lamm Eric
Published: August 2021

Why do I work? Despite instructors’ best efforts, students struggle to understand how different people answer this question differently. This exercise enables students to explore what motivates them in comparison to their peers and previous generations while reinforcing the distinction between intrinsic and extrinsic motivation. Students prioritize job reward factors, share their rankings to appreciate that people are motivated differently, and are given archival data to appreciate changes in workplace dynamics. This simple but thought-provoking exercise fosters rich discussions of intrinsic and extrinsic motivation, self- and other-awareness, changes to the nature of the workplace, and differences in demographics, including generational age cohort, gender, and job level. This exercise is suitable for management or organizational behavior courses at both the undergraduate and graduate levels, using face-to-face and online formats, and synchronous and asynchronous modalities.
Philanthropy to the rescue? Detroit’s schools and urban policymaking under austerity
Authors: Cohen Dan
Published: August 2021

As municipal governments in the US struggle under austerity, philanthropic elites have seemingly come to the rescue. Their money has not come without strings attached, however. By leveraging political contributions and donations to non-profits, philanthropists have moved beyond funding services and into the promotion of their preferred policies to cash-strapped municipalities. This has meant that the super-wealthy can now set the terrain of urban policy debates in cities struggling under austerity, ignoring democratic processes and often working to actively co-opt or stifle dissent. Through a study of the politics surrounding an impending bankruptcy of the Detroit public school system in the mid-2010s, this article provides crucial insights into the nature of elite-led urban policymaking under conditions of racialized austerity. Specifically, it focuses on how competing coalitions of liberal and conservative philanthropists used their wealth and influence to define the parameters of the policy debate over the future of Detroit’s schools. In doing so, these coalitions constrained the ability of residents with alternative visions to participate in decision-making processes and promoted a market-based system of schooling that served Detroit students poorly. This result must be understood as facilitated by the city’s context of racialized austerity, as manifested both through the financial crisis facing Detroit’s schools and through the system of emergency management used to take over Michigan’s majority-Black municipal institutions. These findings highlight that as philanthropic funding and influence have grown under conditions of racialized austerity, we must critically examine their effects on policymaking and on systems of democratic accountability.