bluuebunny/crossref_metadata_2025 huggingface dataset:
Mechanical response of carbon nanotube reinforced particulate composites with implications for polymer bonded explosives
Authors: Iglesias Eliseo E , Rowe Tyler , Fernandez Kyle , Chocron Sidney , Wilkerson Justin
Published: February 2021

Modern polymer bonded explosives (PBX) are often characterized by a sensitive response to external thermomechanical insult that in some cases lead to accidental detonation. Current strategies for desensitizing PBXs come at the expense of a significant reduction in performance. A possible method for desensitizing PBX without adverse performance effects is the multifunctional tailoring of mechanical properties through strategic incorporation of multi-walled carbon nanotubes (MWCNTs) directly into the binder phase. In this work, a fabrication method is presented that produces polymer bonded simulants (PBS) of PBX that incorporate MWCNTs into the binder phase, hydroxyl-terminated polybutadiene (HTPB). These materials were characterized via microscopy and unconfined quasi-static compression testing to determine the effects of MWCNTs. Quasi-static compression showed evidence of a MWCNT induced structural skeleton effect that provided the binder with an increased strength, load transfer, and a greater ability to resist strain localizations prior to failure. These enhancements demonstrate the potential of using MWCNTs to enhance energetic materials.
Managing Members, Donors, and Member-Donors for Effective Nonprofit Fundraising
Authors: Kim Sungjin , Gupta Sachin , Lee Clarence
Published: February 2021

Nonprofit organizations (NPOs) play a central role in many economies in the form of private entities serving a public purpose. Strengthening the fundraising capabilities of NPOs can have a large impact on their survival and effective functioning. NPOs typically elicit financial contributions through multiple forms of giving, such as donation and membership. These options enable individuals to express their altruism by giving in one or multiple forms. The authors develop a utility-based multiple discrete-continuous model that provides insights into potentially large differences in individuals’ giving behaviors. Through Bayesian Gaussian processes, the model also incorporates changes in givers’ preferences for forms of giving. The authors apply their model to five years of individual giving data. They find that the effects of lifetime, recency, seasonality, and appeals on donation and membership options change nonmonotonically over time and in distinctive ways. The authors demonstrate that the model estimates help predict who will give in more than one form in the future as well as build appeal targeting strategies. The model also shows that fundraising attempts should emphasize participation rather than amount, and that long-lapsed members are still worth pursuing for renewal, whereas long-lapsed donors are less productive for repeat giving.
The Concept of Authenticity: What It Means to Consumers
Authors: Nunes Joseph C. , Ordanini Andrea , Giambastiani Gaia
Published: February 2021

The literature is filled with numerous idiosyncratic definitions of what it means for consumption to be authentic. The authors address the resulting conceptual ambiguity by reconceptualizing authenticity, defining it as a holistic consumer assessment determined by six component judgments (accuracy, connectedness, integrity, legitimacy, originality, and proficiency) whereby the role of each component can change according to the consumption context. This definition emerges from a two-stage, multimethod concept reconstruction process leveraging data from more than 3,000 consumers across no fewer than 17 types of consumption experiences. In stage one, the authors take a qualitative approach employing both in-depth interviews and surveys (one conducted on a nationally representative sample) to identify authenticity’s six constituent components. The final components are based on themes emerging from consumer data that were integrated and reconciled with existing definitions in the literature. In stage two, quantitative analyses empirically estimate the six components and support the composite formative nature of the construct. The authors document how certain components contribute to assessments of authenticity differently across contexts; in addition, they show that authenticity has consumer-relevant downstream consequences while being conceptually distinct from consumer attitudes. Their findings offer practitioners direction regarding what to emphasize to convey authenticity to consumers.
Gimmicky or Effective? The Effects of Imaginative Displays on Customers’ Purchase Behavior
Authors: Keh Hean Tat , Wang Di , Yan Li
Published: February 2021

Prior research indicates the strategic importance of the store environment in enhancing customers’ shopping experience and their purchase decisions. This article examines the effects of imaginative displays on customers’ purchase behavior. An imaginative display is constructed using multiple units of the same product in a novel or innovative yet aesthetically appealing form, which could be themed (i.e., having a particular shape mimicking an object) or unthemed. Six studies in both lab and field settings show that, relative to standard displays (i.e., non-novel and neutral aesthetics), imaginative displays can increase customers’ purchase behavior and intentions. Importantly, for themed imaginative displays, these effects work through the dual mechanisms of affect-based arousal and cognition-based inferred benefits, which are contingent on congruence between display form and perceived product benefit. Findings from this research not only contribute to the literature on in-store display and store atmospherics but also have significant practical implications for retailers. Specifically, while imaginative displays may appear gimmicky, they can favorably influence customers’ purchase behavior and increase product sales at relatively low costs.
Influence of alphaxalone on motor somatosensory evoked potentials in a female rhesus macaque (Macaca mulatta)
Authors: Bertrand Henri Georges Michel Justin , Middleton Joseph Adam , Baker Stuart Nicolas , Glover Isabel , Flecknell Paul Andrew
Published: February 2021

This communication reports the effect of alphaxalone on motor somatosensory evoked potential (SEPs) in a rhesus macaque. The animal was deeply anaesthetised with an infusion of ketamine, medetomidine, midazolam and alfentanil. The median nerve was stimulated, and SEPs were recorded from the motor cortex. The successive administration of three doses of alphaxalone (0.5, 1 and 2 mg/kg) induced an increase of the latency time and a decrease of the amplitude of the SEPs. However, the structure of the waveforms was conserved, and hence alphaxalone might represent a suitable general anaesthetic option in neuroscience research as well as veterinary or human medicine.
Prevalence and potential consequences of child labour in India and the possible impact of COVID-19 – a contemporary overview
Authors: Kaur Navpreet , Byard Roger W
Published: February 2021

Child labour is a global phenomenon occurring predominantly in countries with lower socioeconomic status and resources. Societal and familial poverty, loss or incapacitation/illness of parents, lack of social security and protection, and ignorance about the value of, or limited access to, education are among the myriad reasons for the involvement of children in the workforce. Child labour is a barrier to the development of individual children and their society and economy. Global estimates indicate that 152 million children (64 million girls and 88 million boys) are working, accounting for almost one in 10 of all children worldwide. Currently the COVID-19 health pandemic and the resulting economic and labour market consequences are having a major impact on people’s lives and livelihoods. Unfortunately, impoverished families and their children are often the first to suffer, which may push many more vulnerable children into child labour situations. Child labour in India is more prevalent than in many other countries, with approximately 10 million children actively engaged in, or seeking, work. This paper focuses on the issue of child labour, its causes and its ill effects. Further, it also reviews the international legal framework relating to child labour and legislative issues in India. There is clearly an urgent need for this issue to be effectively addressed and resolved.
Applying the AFIX Quality Improvement Model to Increase Adult Immunization in Wisconsin
Authors: Borchardt Stephanie M. , Mitchell Kailynn , Larson Taylor , Ehlers Ellen , Schauer Stephanie L.
Published: February 2021

Objectives

Assessment, Feedback, Incentives, and eXchange (AFIX) is a quality improvement model used to increase childhood and adolescent immunization rates in the United States. We evaluated implementation of a similar quality improvement model to boost adult immunization rates.

Methods

During November 2016 through May 2017, adult immunization outreach specialists conducted 124 in-person visits to clinics in Wisconsin that immunize adults, submit immunization information to the Wisconsin Immunization Registry (WIR), and agreed to participate in adult AFIX. Outreach specialists ran immunization assessment reports using the WIR and showed a paper copy of the report during the visit. Health care providers were encouraged to implement at least 1 of 18 strategies (eg, reminder-and-recall intervention, giving adult immunization resources to patients) to increase adult immunization rates. Outreach specialists conducted follow-up with health care providers at 3, 6, and 9-18 months after the initial visit to encourage strategy implementation. We compared AFIX sites with control clinics on practice type, geographic location, and clinic size.

Results

Clinics that participated in adult AFIX had a significantly larger increase in median adult immunization rates for completion of the human papillomavirus vaccine series at the 9- to 18-month follow-up than control clinics did (10.4% vs 7.7%; P = .02). The median immunization rate for 13-valent pneumococcal conjugate vaccine/23-valent pneumococcal polysaccharide vaccine completed in series was higher, but not significantly so, among adult AFIX clinics than among control clinics (12.6% vs 10.7%; P = .18).

Conclusions

Adult AFIX resulted in increased awareness about adult immunization recommendations and may be a useful tool for increasing adult immunization rates.
The coloniality of distinction: Class, race and whiteness among post-crisis Italian migrants
Authors: Varriale Simone
Published: February 2021

This article explores how strategies of class distinction reproduce racialised hierarchies between ‘modern’ and ‘backward’ European populations. Drawing on 57 interviews with Italian migrants who moved to England after the 2008 economic crisis, and combining Bourdieusian class analysis and decolonial critique, the article shows that migrants in different social positions are equally concerned with claiming closeness to the UK’s meritocratic culture and with distancing themselves from Italy’s backwardness. However, they mobilise unequal forms of capital to sustain this claim. More resourceful migrants use economic and cultural capital to demonstrate fit with British culture and to racialise less resourceful co-nationals as too ‘Southern’ to belong. The latter stress self-resilience and Italianness as sources of distinction, but more frequently report exploitation and stigma in the context of insecure professional fields. The article advances research on class, racialisation and European whiteness, unravelling the coloniality of distinction, namely how class helps more resourceful migrants to symbolically claim North European whiteness while displacing ‘race’ – in the forms of laziness, lack of rationality and self-restraint – onto less resourceful migrants. This reveals how, in the post-2008 context, enduring narratives of South–North difference legitimise class inequalities, exploitation and neoliberal forms of self-governance.
Microfibers from synthetic textiles as a major source of microplastics in the environment: A review
Authors: Acharya Sanjit , Rumi Shaida S , Hu Yang , Abidi Noureddine
Published: February 2021

Microplastic fibers, also known as microfibers, are the most abundant microplastic forms found in the environment. Microfibers are released in massive numbers from textile garments during home laundering via sewage effluents and/or sludge. This review presents and discusses the importance of synthetic textile-based microfibers as a source of microplastics. Studies focused on their release during laundering were reviewed, and factors affecting microfiber release from textiles and the putative role of wastewater treatment plants (WWTPs) as a pathway of their release in the environment were examined and discussed. Moreover, potential adverse effects of microfibers on marine and aquatic biota and human health were briefly reviewed. Studies show that thousands of microfibers are released from textile garments during laundering. Different factors, such as fabric type and detergent, impact the release of microfibers. However, a relatively smaller number of available studies and often conflicting findings among studies make it harder to establish definitive trends related to important factors contributing to the release of microfibers. Even though current WWTPs are highly effective in capturing microfibers, due to the presence of a massive number of microfibers in the influent, up to billions of fibers per day are released through effluent into the environment. There is a need to establish standardized protocols and procedures that can allow meaningful comparisons among studies to be performed.
Support vector machine classification model for color fastness to ironing of vat dyes
Authors: Yu Xinliang , Wang Hanlu
Published: February 2021

Investigations of quantitative relationships between structure and color fastness of dyes are crucial in seeking novel dyes. For the first time, this work reported a classification model based on a quantitative structure–property relationship to predict color fastness to ironing of vat dyes. By performing binary classification analysis based on a support vector machine (SVM) and genetic algorithm, 56 vat dyes in the training set together with seven molecular descriptors were used to develop the classification model, which was validated with 59 vat dyes in the test set. The optimal SVM model ( C = 208.465 and γ = 5.9692) possesses overall accuracy of 91.1% for the training set and 83.1% for the test set, which is more accurate than those from the binary logistic regression model (87.5% and 81.4%, respectively). Furthermore, the mechanism of molecular descriptors correlated with color fastness to ironing of vat dyes is discussed.
Contextual Text Coding: A Mixed-methods Approach for Large-scale Textual Data
Authors: Lichtenstein Matty , Rucks-Ahidiana Zawadi
Published: February 2021

With the growing availability of large-scale text-based data sets, there is an increasing need for an accessible and systematic way to analyze qualitative texts. This article introduces and details the contextual text coding (CTC) method as a mixed-methods approach to large-scale qualitative data analysis. The method is particularly useful for complex text, textual data characterized by context-specific meanings and a lack of consistent terminology. CTC provides an alternative to current approaches to analyzing large textual data sets, specifically computational text analysis and hand coding, neither of which capture both the qualitative and quantitative analytical potential of large-scale textual data sets. Building on hand coding techniques and systematic sampling methods, CTC provides a clear six-step process to produce both quantitative and qualitative analyses of large-scale complex textual data sources. This article includes two examples, using projects focusing on journal and interview data, respectively, to illustrate the method’s versatility.
Faith styles and perceptions of other faiths among Muslims
Authors: Tarar Amina Hanif , Hasan Syeda Salma , Keller Barbara
Published: February 2021

The positive role of religion in reducing prejudice has remained a neglected theme in Psychology of religion, concerning itself mostly with prejudice and fundamentalism. Recently, noting the absence of a positive antithesis to prejudice and fundamentalism, faith development theory presents xenosophia as going beyond mere tolerance to a creative engagement with other religious faiths to develop new insights and broaden one’s own worldview. The current research undertakes a study of Muslim faith contents to get insights into how these beliefs shape construction of self in relation to other faith communities. Conducting inductive thematic analysis of faith development interviews from 12 Muslim participants from three major religious affiliations in Pakistan (equally divided for gender and ages ranging from 31 to 76 years) in an earlier research, the research analyzes a range of xenological patterns from xenophobia to xenosophia with associated potentials for inter-faith dialogue. Focusing on residents of a country with a dense Muslim population, the study carries implications for religious socialization and religious education in a globalized world.
Use of Geographic Information System Mapping in the Examination of Specialized Low Vision Resources and Areas of Need in Michigan
Authors: Connors Elyse , Willard Amber E. , Baker Kathleen M. , Debiak Katie , Beranek Renee , Roodbar Sam
Published: February 2021

Introduction:

The number of adults with visual impairments (i.e., blindness or low vision) is increasing, especially with the aging of the population. Although awareness of vision loss as a public health problem is growing, public health budgets are decreasing. This study exemplifies the use of publicly available secondary data and geographic information system (GIS) mapping to spatially map areas of potential higher risk for vision loss and identify where specialized, low vision resources are located, by county, in Michigan.

Methods:

County-level, publicly available data on risk factors for low vision (health and demographic) and specialized low vision resources (medical, rehabilitation, and community) are extracted from existing public health data sets and information published on the Internet. GIS mapping is applied to visually examine potential areas of disparity between need and resources.

Results:

Broadly speaking, counties in Michigan with the highest number of risk factors for low vision are clustered in the center of the Lower Peninsula and on the eastern and western ends of the Upper Peninsula. Areas that have fewer resources for low vision are clustered in the thumb area and the middle to upper part of the Lower Peninsula. Resources are concentrated near the state’s metropolitan areas (i.e., Detroit and suburbs, Kalamazoo, and Grand Rapids).

Discussion:

Maps can be helpful in locating areas of health disparities, but they need to be interpreted carefully such as by considering the county’s population size. Understanding the eligibility criteria of available services can help to uncover groups of persons not being served.

Implications for practitioners:

With increasing need for services and shrinking budgets, strategic planning may help alleviate anticipated shortfalls in available services. Use of publicly available data and GIS mapping may be an affordable and efficient method to identify areas of need and resources, for targeted public health efforts in vision.
Locus of Control in College Students with and Without Visual Impairments, and the Visual Characteristics that Affect It
Authors: Abbasi Jondani Javad
Published: February 2021

Introduction:

According to previous research, locus of control (LOC) has a crucial role in an individual’s psychological well-being. The purpose of this study was 3-fold: (1) comparing LOC of college students with and without visual impairments while controlling for gender, educational level, and age; (2) investigating the relationship between LOC and visual characteristics in college students with visual impairments; and (3) predicting LOC of these students using their visual characteristics.

Methods:

The design of this study was causal-comparative. The statistical population included a sample of college students with and without visual impairments who were enrolled at the University of Isfahan, Iran. Fifteen of the 20 college students with visual impairments were selected through convenience sampling and amongst sighted students, 15 individuals were selected in a way that they were matched with college students with visual impairment regarding gender, educational level, and age. The Rotter Locus of Control Scale was used to measure LOC. Also, visual impairment characteristics and demographic data were collected. The results were analyzed by t-test and stepwise regression analysis.

Results:

Results indicated no significant difference between LOC of college students with and without visual impairments ( p > .05), and both groups tended to have internal LOC on average. The results indicated that adjustment to visual impairment and the recent status of visual impairment might predict the LOC of a college student who is visually impaired and explained 59.2% of its variance with this sample ( p < .005).

Discussion:

LOC of college students with visual impairments was similar to their sighted counterparts. The better adjusted the person was to his or her visual impairment and the less worsening the status of visual impairment was, the higher internal LOC he or she had.

Implications for practitioners:

Families and society can help individuals with visual impairments build their internal LOC, by teaching them how to adjust to their disability and providing them the conditions to increase their independence. At the same time, preparing them for entering university may also help them develop their sense of internal LOC.
Local Government Roles in Filling the Sustainability Policy Vacuum: Insights from Local Government Managers
Authors: Lee Robert E. , Feiock Richard C.
Published: February 2021

This paper investigates four roles that local governments play in sustainability within the contemporary intergovernmental system—minimalist, implementing agent, entrepreneur, and regional champion. A conceptual framework is advanced to explain these roles based on the time horizons and capacities within which local governments operate. Interviews with local government managers offer insights into how these two dimensions shape the roles that local governments play in sustainability. Although the interviews offer support for the utility of the sustainability role framework, they also suggest additional factors influencing the roles that local governments play in sustainability.
Nurse Fatigue and Nurse, Patient Safety, and Organizational Outcomes: A Systematic Review
Authors: Cho Hyeonmi , Steege Linsey M.
Published: February 2021

Hospital nurses are at high risk of fatigue due to stressful work environments with heavy workloads and non-standard work schedules. This systematic review examined the relationship between hospital nurse fatigue and outcomes. Full-text English language quantitative studies published between January 2000 and July 2020 were included. A total of 22 articles were reviewed and synthesized. The findings were synthesized into three major categories: nurse outcomes, nurse-reported patient outcomes, and organizational outcomes. Some of the most commonly studied outcomes include nursing performance (n=3), sickness absence (n=3), and intention to leave (n=4). Fatigue was consistently associated with mental health problems, decreased nursing performance, and sickness absence. Many studies confirmed that nurse fatigue is negatively associated with nurse, patient-safety, and organizational outcomes. However, our findings highlight gaps in current knowledge and the need for future research using a longitudinal design and measuring additional outcomes to better understand the consequences of nurse fatigue.
‘German Theory’: Cosmopolitan geographies, counterfactual histories and the (non)travel of a ‘German Foucault’
Authors: Korf Benedikt
Published: February 2021

In this paper, I propose the notion of ‘German Theory’ to allude to the processes of translation and circulation of theoretical ideas discussed in the German humanities and German geography across and beyond the linguistic boundaries of its origin. However, these ideas did not travel, at least not to Anglophone geography. This paper investigates why not, and it maps out the lost theoretical potential that has been foregone as a result. ‘German Theory’ is thus read here as a potentiality that has not actualised. More specifically, this paper studies the reception of Foucault, as it emerged in two distinct territories of thought, each with their own interpretation: first, Kittler’s work on the materiality of discourse in German humanities, and second, the ‘discourse school’ in German geography. The latter’s insistence on the textuality of discourse disconnected their Foucault reception not only from Kittler’s, but equally so from ongoing debates in Anglophone geography. By reflecting on why the ‘German Foucault’ did not travel to Anglophone geography, I raise a speculative epistemological question about the im/potentiality of ‘German Theory’: could a more cosmopolitan theory have emerged from a circulation of these ideas had they travelled across linguistic boundaries?
‘We’re on their side, aren’t we?’ Exploring Qualified Teacher of Children and Young People with Vision Impairment (QTVI) views on the role of supporting the emotional well-being of visually impaired children
Authors: Pilson Anna
Published: February 2021

Mindful of the assertion that children with vision impairment (VI) are three times more likely than their peers to develop a mental health problem, this study aimed to identify practitioner-perceived priorities in supporting the emotional well-being of visually impaired children, via eliciting self-reported explorations of professional practice and experiences of Qualified Teacher of Children and Young People with Vision Impairment (QTVI). Using a focus group-based interviewing technique with QTVIs from a single peripatetic VI advisory service in England, the study found that despite evident good practice, the QTVIs could feel inhibited by a lack of confidence in their ability to deliver adequate and appropriate intervention. This stems from a perceived lack of knowledge of resources available, a feeling of ‘reinventing the wheel’ and ‘bolting on’ to existing generic materials to try to improve their relevance to VI, and also an uncertainty regarding ownership of delivery of such interventions. QTVIs demonstrated clear willingness to support the emotional well-being of pupils on their caseload, but expressed a desire for more professional training, a clearer understanding of the breadth of the QTVI role, and a centralisation of knowledge and resources pertaining to emotional well-being. Therefore, this article recommends the development of resources for sharing good practice, as well as encouraging the VI educational sector to provide additional continuing professional development opportunities, and also potentially a review of the course specification of the Mandatory Qualification for Vision Impairment Teaching in England.
Setting research priorities in age-related vision loss: The first step in a critical participatory action research approach
Authors: McGrath Colleen
Published: February 2021

There are no known examples of studies utilizing a critical participatory action research (CPAR) approach with older adults aging with vision loss, to better understand how environmental factors impact activity engagement. As such, the aim of this article was to share the process of initiating a CPAR approach with older adults with age-related vision loss to identify a set of research and/or rehabilitation priorities related to the influence of physical, social, cultural, political, and institutional environmental factors on activity engagement. This study utilized a CPAR approach. Eight older adults (aged 65 years of age and older) with a diagnosis of age-related vision loss (including macular degeneration, glaucoma, and/or diabetic retinopathy) took part in three half-day meetings as well as a one-on-one interview over a period of 2 months. Through a series of facilitated group discussions, the older adults identified research and/or rehabilitation priorities related to how environmental influences support or limit the participation of older adults with age-related vision loss (ARVL) in everyday activities. Three research and/or rehabilitation priorities were identified including (1) community mobility; (2) assistive technology; and (3) community support and services. For each priority, the older adults, along with the researchers, answered four key questions including (1) What do we need to know more about? (i.e., research question); (2) How could we learn more about this? (i.e., proposed methods of data collection); (3) Who would we need to involve as key stakeholders? (i.e., participants); and (4) What would change look like? (i.e., action potential). This study shared the process of initiating a CPAR process with eight older adults with ARVL to identify research and/or rehabilitation priorities. By doing so, this study will help to provide direction for future ARVL research and rehabilitation that is grounded, methodologically, in a CPAR approach.
On the relationship between perception and production of L2 sounds: Evidence from Anglophones’ processing of the French /u/–/y/ contrast
Authors: Melnik-Leroy Gerda Ana , Turnbull Rory , Peperkamp Sharon
Published: February 2021

Previous studies have yielded contradictory results on the relationship between perception and production in second language (L2) phonological processing. We re-examine the relationship between the two modalities both within and across processing levels, addressing several issues regarding methodology and statistical analyses. We focus on the perception and production of the French contrast /u/–/y/ by proficient English-speaking late learners of French. In an experiment with a prelexical perception task (ABX discrimination) and both a prelexical and a lexical production task (pseudoword reading and picture naming), we observe a robust link between perception and production within but not across levels. Moreover, using a clustering analysis we provide evidence that good perception is a prerequisite for good production.
‘They make a business out of desperate people’: The role of recruitment agents in cross-border labour chains
Authors: Stringer Christina , Kartikasari Ani , Michailova Snejina
Published: February 2021

This article examines the role recruitment agents play in the complex web of forced labour. Our focus is the abusive treatment of Indonesian crew onboard South Korean factory trawlers fishing in New Zealand’s waters. We gathered data from multiple sources: (1) documents, including Indonesia’s national legislation and migrants’ employment contracts; (2) 27 interviews with Indonesian crew; and (3) translation work for New Zealand government ministries, court cases, and film productions. We analyse how recruitment agents are implicated, as seen through the crew’s eyes, in three phases – before departure, onboard the vessels, and following their return home.

JEL Classification: J81, F55, F66
Assessing the Effects of Limited Curbside Pickup Capacity in Meal Delivery Operations for Increased Safety during a Pandemic
Authors: Fotouhi Hossein , Mori Nicholas , Miller-Hooks Elise , Sokolov Vadim , Sahasrabudhe Sagar
Published: February 2021

Meal delivery has become increasingly popular in past years and of great importance in past months during the COVID-19 pandemic. Sustaining such services depends on maintaining provider profitability and reduced cost to consumers while continuing to support autonomy and independence for customers, restaurants, and delivery drivers (here crowdsourced drivers). This paper investigates the possible enactment of curbside regulations in the U.S. that limit the number of drivers simultaneously waiting at restaurants to pick up meals for delivery on both public safety and delivery efficiency. Curbside regulations would aim to increase safety by enabling social distancing between delivery personnel at pickup locations and have a secondary benefit of improving local traffic flows, which are sometimes impeded in busier, urban locations. Curbside space limits are studied in relation to their impacts on consumer-related performance measures: freshness of the food on delivery and click-to-door time. This investigation is enabled through a proposed hybrid discrete-event and time-advanced simulation platform that replicates meal delivery service calls and pickup and delivery operations across a region built on data from a leading meal delivery company. Embedded within the simulation is an integer program that optimally assigns orders to drivers in a dynamically changing environment. Order assignments are constrained by imposed curbside capacity limits at the restaurants, and potential efficiencies and curbside violation reductions from bundling orders are assessed. Results of analyses from numerical experiments provide insights to state and local communities in designing curbside restrictions that reduce curbside crowding yet enable delivery companies to retain their profitability.
Do Larger Sample Sizes Increase the Reliability of Traffic Incident Duration Models? A Case Study of East Tennessee Incidents
Authors: Zhang Zihe , Liu Jun , Li Xiaobing , Khattak Asad J.
Published: February 2021

Incident duration models are often developed to assist incident management and traveler information dissemination. With recent advances in data collection and management, enormous achieved incident data are now available for incident model development. However, a large volume of data may present challenges to practitioners, such as data processing and computation. Besides, data that span multiple years may have inconsistency issues because of the data collection environments and procedures. A practical question may arise in the incident modeling community—Is that much data really necessary (“all-in”) to build models? If not, then how many data are necessary? To answer these questions, this study aims to investigate the relationship between the data sample sizes and the reliability of incident duration analysis models. This study proposed and demonstrated a sample size determination framework through a case study using data of over 47,000 incidents. This study estimated handfuls of hazard-based duration models with varying sample sizes. The relationships between sample size and model performance, along with estimate outcomes (i.e., coefficients and significance levels), were examined and visualized. The results showed that the variation of estimated coefficients decreases as the sample size increases, and becomes stabilized when the sample size reaches a critical threshold value. This critical threshold value may be the recommended sample size. The case study suggested a sample size of 6,500 to be enough for a reliable incident duration model. The critical value may vary significantly with different data and model specifications. More implications are discussed in the paper.
Sanctioning Genocide: To What Effect?
Authors: Taylor Whitney K. , Nyseth Brehm Hollie
Published: February 2021

Although economic sanctions have become a prominent response to mass atrocity, there has been relatively little scholarship assessing the impact of economic sanctions on genocidal violence. This article examines whether and how economic sanctions are associated with both the magnitude and the duration of state-led genocide. We analyze 39 genocides that occurred between 1955 and 2005. Results indicate that economic sanctions are not significantly associated with decreased magnitude or duration of genocide. These findings contribute to theory regarding the impact of sanctions on state behavior and hold significance for policy decisions in the face of genocide.
COVID-19 Protective Behaviors: The Role of Living Arrangements and Localities
Authors: Cohn-Schwartz Ella , Ayalon Liat
Published: February 2021

Objectives:

Guided by the human-ecological model, we aimed to identify contextual factors related to protective behaviors during the COVID-19 outbreak.

Method:

Data are based on a nationally representative survey of adults aged 50+ in Israel during the COVID-19 outbreak ( N = 1,019). Regression models predicted three behaviors: using hand sanitizers and masks, stocking up food, and avoiding social meetings. The independent variables were living arrangements (microsystems) and type of localities (macrosystems).

Results:

Participants who lived alone or lived in rural localities were less likely to adopt protective measures.

Conclusion:

Policy makers should pay particular attention to adults who live alone or live in rural areas as they might be less likely to adopt protective behaviors and face higher health risks during the pandemic.
Point-of-Care Lung Ultrasound for COVID-19: Findings and Prognostic Implications From 105 Consecutive Patients
Authors: Yasukawa Kosuke , Minami Taro , Boulware David R. , Shimada Ayako , Fischer Ernest A.
Published: February 2021

Background:

The prognostic value of point-of-care lung ultrasound has not been evaluated in a large cohort of patients with COVID-19 admitted to general medicine ward in the United States. The aim of this study was to describe lung ultrasound findings and their prognostic value in patients with COVID-19 admitted to internal medicine ward.

Method:

This prospective observational study consecutively enrolled 105 hospitalized participants with COVID-19 at 2 tertiary care centers. Ultrasound was performed in 12 lung zones within 24 hours of admission. Findings were assessed relative to 4 outcomes: intensive care unit (ICU) need, need for intensive respiratory support, length of stay, and death.

Results:

We detected abnormalities in 92% (97/105) of participants. The common findings were confluent B-lines (92%), non-homogenous pleural lines (78%), and consolidations (54%). Large confluent B-lines, consolidations, bilateral involvement, and any abnormality in ≥ 6 areas were associated with a longer hospitalization and need for intensive respiratory support. Large confluent B-lines and bilateral involvement were also associated with ICU stay. A total lung ultrasound score <5 had a negative predictive value of 100% for the need of intensive respiratory support. A higher total lung ultrasound score was associated with ICU need (median total 18 in the ICU group vs. 11 non-ICU, p = 0.004), a hospitalization ≥ 9d (15 vs 10, p = 0.016) and need for intensive respiratory support (18 vs. 8.5, P < 0.001).

Conclusions:

Most patients hospitalized with COVID-19 had lung ultrasound abnormalities on admission and a higher lung ultrasound score was associated with worse clinical outcomes except death. A low total lung ultrasound score (<5) had a negative predictive value of 100% for the need of intensive respiratory support. Point-of-care ultrasound can aid in the risk stratification for patients with COVID-19 admitted to general wards.
Psychological Predictors of Bystanders’ Intention to Help Cyberbullying Victims Among College Students: An Application of Theory of Planned Behavior
Authors: Hayashi Yusuke , Tahmasbi Nargess
Published: February 2021

The goal of the present study was to evaluate the Theory of Planned Behavior (TPB) as an explanation for bystanders’ intention to help cyberbullying victims among college students. Participants completed an online survey in which their intention, attitude, subjective norm, and perceived behavioral control toward helping cyberbullying victims were assessed. In addition to these traditional TPB variables, empathy toward cyberbullying victims and anticipated regret from not helping victims were included in the model. Results showed that empathy and anticipated regret significantly predicted intention to help cyberbullying victims over and above the traditional TPB variables. Results also showed that gender altered how traditional TPB variables, empathy, and anticipated regret predict bystander’s intention to help cyberbullying victims: Empathy and anticipated regret were most robust predictors for males and females, respectively. These results suggest that the TPB is a useful theoretical framework for understanding bystanders’ intention to help cyberbullying victims. Implications for developing effective prevention and intervention strategies are discussed.
Mentoring Barriers, Expected Outcomes, and Practices in Scientific Communication: Scale Development and Validation
Authors: Anderson Cheryl B. , Chang Shine , Lee Hwa Young , Baldwin Constance D.
Published: February 2021

Developing new scales to measure aspects of mentoring, including guidance in scientific communication (SciComm), is important to enhance success among trainees pursuing research careers in science and medicine. This study examined the psychometric properties of three new measures, based on social cognitive career theory (SCCT), as mentors address skills in scientific writing, oral presentation, and impromptu speaking. Faculty research mentors ( N = 194) completed online questionnaires assessing perceptions of mentoring barriers in SciComm, outcome expectations, and practice behaviors in research and SciComm. Exploratory and confirmatory factor analyses rendered support for a three-factor measure of barriers, one-factor measure of expected outcomes, and a five-factor measure of practices. Good support was also found for a path model that included the variables in the prediction of mentoring practices. Findings support applying SCCT to mentoring and clarify contextual barriers–choice outcome relations which can inform barrier-coping, SciComm interventions among mentors.
Partners, Not Providers: A Collaboration Typology for Congregations and Community
Authors: Cooper Katherine R. , Cooper Lynn O.
Published: February 2021

Scholars have long been interested in nonprofits, religious congregations, and their collaborative activity. This research builds upon past large-scale studies of congregations to suggest a nuanced understanding of how clergy approach congregational partnerships and make decisions about collaborating with community organizations. Using qualitative data from a geographically bounded sample of 30 Protestant congregations and grounded theory methodology, we suggest that clergy view their congregations as serving a different purpose from nonprofit partners and navigate numerous tensions inherent in congregational life in their pursuit of collaborative activity. We introduce a new typology of congregational collaboration that posits collaboration as a strategy for providing material and spiritual resources, in and outside of their congregations.
Human rights and ideology in foreign policy discourse: A case study of U.S. State Department Human Rights Country Reports 2000–2019
Authors: Kuosmanen Sonja
Published: February 2021

The promotion of human rights has faced challenges in recent years in the United States and elsewhere. In this study, human rights discourses are examined in the context of strategic foreign policy rhetoric by the United States. The routine of foreign policy statements is meant to create audiences receptive to U.S. foreign policy aims, but also reveals underlying ideologies and assumptions. The analysis examines U.S. State Department Human Rights Country Reports between 2000 and 2019. The results show that the assumed ideal model of human rights is heavily based on U.S. political tradition. The performance of other countries is evaluated against the ‘exceptionalist’ U.S. model without consideration of different cultural or societal contexts. Linguistic choices are made to highlight the agency of authorities and events, which can be seen as a strategy of diplomatic face-saving. In some cases, countries are evaluated on an unequal basis based on political expediency.
Effect of fenofibrate on proliferation of SMMC-7721 cells via regulating cell cycle
Authors: Li B , Jiang H-Y , Wang Z-H , Ma Y-C , Bao Y-N , Jin Y
Published: February 2021

Liver cancer is a malignant cancer with great harmfulness. Fenofibrate is a peroxisome proliferation activated receptor (PPARα) agonist widely used in the treatment of dyslipidemia. Previous studies have shown that fenofibrate may promote cell proliferation, but the underlying mechanism has not been fully characterized. The aim of this study was to investigate the role of PPARα agonist fenofibrate in cell proliferation of SMMC-7721 cells compared with that of THLE-2 cells. SMMC-7721 and THLE-2 cells were treated with different concentrations of fenofibrate. Cell proliferation was analyzed by MTT, using flow cytometry for cell cycle analysis, and CyclinD1, Cyclin-dependent kinases2 (CDK2) and Proliferating Cell Nuclear Antigen (PCNA) were analyzed by Western blotting. RT-qPCR method was used to assess CDK2, CyclinD1 and PCNA mRNA levels. The results showed that 10−9–10−4 mol/L fenofibrate could induce cell growth and 10−4, 10−5, 10−6 mol/L fenofibrate could reduce the number of G0/G1 phase cells and increased in the number of cells in S and G2/M phase of cell cycle in SMMC-7721 cells. Furthermore, fenofibrate could significantly increase the expression of cell cycle related protein (CyclinD1, CDK2)and cell proliferation related proteins (PCNA). The use of PPARα inhibitor MT886 inhibited cell cycle progression and promote tumor cell apoptosis. But fenofibrate had no obvious effect on THLE-2 cells. These results revealed the effect of fenofibrate on the cell cycle of liver cancer cells, and provided a reasonable explanation for studying how fenofibrate promotes cell proliferation.
Audit as Accountability: Technical Authority and Expertise in the Governance of Private Financing for Development
Authors: Tan Celine
Published: February 2021

The paper examines the emergence of a new landscape of international development finance that is blurring traditional boundaries between public and private resources for meeting the Sustainable Development Goals (SDGs) and other global public goods (GPGs). In the SDG financing ecosystem, private actors are no longer passive bystanders in the development process but as active contributors to and investors in development projects and programmes. The paper argues that the emerging ‘private turn’ in the architecture of development finance represents a technology of governance that is rooted in the assemblage of international development policy and practice. This regime constitutes an emerging complex and often problematic framework of organising and managing countries’ access to external finance and establishing their terms of engagement with the broader global economy.
What Did Angola Learn from the World and What Did the World Learn from COVID-19? Reflection on Epidemiological Surveillance in Health
Authors: Sacomboio Euclides Nenga Manuel
Published: February 2021

The global community is racing to slow down and eventually stop the spread of COVID-19, which is a pandemic that has killed thousands of lives and made tens of thousands sick. The new coronavirus has already reached Angola, with 25 confirmed cases, among them 2 died and 6 were cured. The government has decreed a state of emergency on 24 March 2020 for 15 days, which was extended twice for the same number of days that will make it possible to reduce clusters of people and keep them at home. This study reflected on the diverse ways of leadership. It is an article of theoretical, technical and scientific reflection, based on the experience of a new epidemiological situation, with a critical analysis based on technical, scientific and professional experience, with bibliographic input of data obtained from information published in scientific articles, newspapers, magazines and other official documents published in Angola and worldwide related to COVID-19. This article emerged from critical thinking based on the current situation of COVID-19 in Angola in the world and is reflected in this article, what Angola should learn and learned from the experience of other countries that also imported the disease, their history of investment in health, characteristics of their populations, their economies and other aspects.