bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of 3D printers for concrete structures: mix proportion design approach and laboratory testing
Authors: Pham Loan Thi , Nguyen Thu , Trinh Thanh , Nguyen Anh , Do Quang , Bui Bien , Xiao Jianzhuang 
Published: August 2022

PurposeThis study deals with three major topics: (1) the developed generations of 3D concrete printers, (2) the mix design approach for cement-based materials and (3) laboratory testing.Design/methodology/approachThe big question is how to approach and follow the trend of 3D concrete printing technology with limited conditions such as printers, technology issues and budget. Therefore, this research focused on dealing with prominent issues, including printing equipment, mixed proportion design approaches and laboratory testing methods will be presented and analyzed.FindingsThe details of three printing equipment, including a printhead, a small-scale 3D printer, a 3D concrete printer and the printing process related to Simplify and Mach3 software, will be revealed. Secondly, the classification and efficient process will be given according to the mixture proportion design method proposed. Thirdly, laboratory testing will be conducted, including extrudability, buildability and printability. Finally, some highlight conclusions are given based on the appearance and quality of the samples printed.Research limitations/implicationsResearch has been carried out with cement-based materials and 3D concrete printer which adopted the screw extruders.Practical implicationsMix design proportion method via coefficient and slump value proposed by the authors is a relatively effective and convenient method; the rheological properties, printing process and geometry of a sample are the most significant factors that decide the success of the printing work.Social implicationsAdditive manufacturing, widely known as 3D printing, has recently drawn the attention of researchers worldwide for a few decades. Thanks to its capability to transform a drawing into an object, the idea of 3D printing has also attracted the attention of engineers, architects and investors.Originality/value(1) Mix design proportion via coefficient and slump value proposed by the authors is a relatively effective and convenient method that can be implemented simply at the laboratory or the site. (2) The ranges of coefficients by weight of the water, sand and PP fibers to binder are (0.27–0.3), (0.6–1.0) and around 0.3, respectively. The maximum sand size was smaller than 2.5 mm, and the small amount of PP fibers enhanced the quality and significantly reduced the printed samples' shrinkage. (3) The printability is affected by mix proportion and the relationship between nozzle printing speed parameter and extrusion speed of motor turning. (4) The chosen layer height recommended smaller than 0.83 times nozzle diameter is reasonable and improves adhesions and buildability. (5) The printing open time of the concrete mixture of (12–15) minutes is a barrel to promote 3D concrete printing technology and needs improvement.
Mechanical testing and characterization of tin–zinc–antimony–lanthanum lead-free solders produced using mechanical alloying and furnace melting techniques
Authors: D. Arthur Jebastine Sunderraj , D. Ananthapadmanaban , Kathiresan Arun Vasantha Geethan 
Published: August 2022

Purpose
The purpose of this paper is to investigate the effects of two different weight percentages of lanthanum on tin–zinc–antimony solder alloys. Two manufacturing techniques were used: the furnace melting method (FMM) and ball milling method (BMM). The alloys were characterized and mechanically tested.

Design/methodology/approach
Tin–zinc–antimony alloys with 0.5 and 1% lanthanum were prepared by FMM and BMM for 25, 30 and 35 h. The tensile, shear, hardness, wear and corrosion properties were characterized using optical microscopy, scanning electron microscopy and X-ray diffraction.

Findings
Ball-milled samples were harder and more resistant to wear than furnace-melted samples. Corrosion tests showed that ball-milled samples of both the 0.5 and 1% lanthanum tin-based solders showed higher corrosion than furnace-melted samples. The ball-milled samples exhibited a uniform particle distribution. The ductility of the milled samples was significantly higher than that of the furnace-melted ones. There was strong evidence of the presence of nanoparticles. X-ray diffraction revealed some amorphous phases, which have not been previously reported.

Originality/value
The quality of solder alloys prepared by FMM and BMM was compared. This comparison was not made in previous studies. In addition to the hardness, the wear and corrosion resistances were measured, which have not been previously reported. There seems to be evidence of the presence of nanoparticles in the solder, as suggested by the increase in the elongation. Tensile, elongation and shear tests were performed, and a theory was provided for the results obtained.
Understanding the role of transparency, participation, and collaboration for achieving open digital government goals in Oman
Authors: Al Sulaimani Ahmed Hamed Abdullah , Ozuem Wilson 
Published: August 2022

Purpose
This study aims to understand the roles of transparency, participation and collaboration in pursuit of achieving open digital government (OPG) goals in Oman. The study explores the extent to which these interactive digital apps and other initiatives can enhance digital transparency, collaboration and public participation to achieve ODG goals.

Design/methodology/approach
This study has used triangulation of qualitative method by selecting semi-structured interviews, focus group interviews and public user reviews of ODG apps.

Findings
This research found that collaboration among institutions and transparency of actions and operations besides citizens’ participation in ODG enhance the trust to use ODG services. Therefore, a research framework is devised for synthesizing the significance of public participation and transparency where the aim is to facilitate collaboration among institutions with the purpose to achieve ODG goals. Such collaboration is highly useful for enhancing the ODG public value chain as well as achieving the ODG goals.

Research limitations/implications
This study has recommended practical implications for public institutions and Information technology developers to work collaboratively with the purpose to address the issues of interactivity and compatibility in ODG apps that can enhance public participation and improve the public value chain.

Originality/value
This study has used the institutional theoretical support to build a research framework that can extend the understanding that what factors can play role to achieve ODG goals.
Opening the path of gastro-tourism cluster development: the case of Cyprus
Authors: Garanti Zanete , Stylianou Christiana 
Published: August 2022

PurposeThis study aims to identify stakeholders and dimensions of the gastro-tourism cluster in Cyprus in order to facilitate the creation of a network of unique culinary experiences for tourists.Design/methodology/approachThe qualitative research approach was undertaken through interaction with academics, researchers, and public and private sector stakeholders during the Gastro-Tourism Conference, which was organized by the University of Nicosia, Cyprus, in May 2022. The study draws on data from non-structured interviews conducted with tourism industry professionals and stakeholders.FindingsFour stakeholders of the gastro-tourism cluster were identified: enterprises from the gastro sector, supportive enterprises and industries, public institutions, and other institutions. Geographic proximity and knowledge sharing are the main dimensions affecting the gastro-tourism cluster in Cyprus.Originality/valueThe authors identified stakeholders in and dimensions of the gastro-tourism cluster in Cyprus, each of which plays a significant role in creating culinary experiences for visitors and ensuring more sustainable and less seasonal development of the island as a destination.
Coordinating Activity Interdependencies in the Contemporary Economy: The Principle of Distributed Control
Authors: Harrison Debbie , Munksgaard Kristin B. , Prenkert Frans 
Published: August 2022

AbstractThis study addresses the lack of knowledge about inter‐organizational activity coordination in the contemporary economy. Existing understanding of economic coordination within inter‐organizational research is based on the three modes of organization, market, and cooperative relationship. We extend the framework of Richardson that analyses specialization and complementarity within the industrial division of labour in terms of these three coordination modes. We propose a novel mode of coordinating economic activity, namely multi‐actor arrangements, which is based on the coordination of very dissimilar yet complementary activities, grounded in the principle of distributed control. This fourth mode is necessary to explain contemporary phenomena such as the circular economy and blockchain because these involve interdependencies that were previously framed as too different or unrelated to coordinate. The extension is important because it changes our understanding of mixed‐mode coordination. Our proposed fourth mode enables the conceptualization of how activity interdependencies are coordinated within inter‐organizational relationships and networks undergoing transformation.
Digital health: A sociomaterial approach
Authors: Marent Benjamin , Henwood Flis 
Published: August 2022

AbstractThe notion ofdigital healthoften remains an empty signifier, employed strategically for a vast array of demands to attract investments and legitimise reforms. Rather scarce are attempts to develop digital health towards an analytic notion that provides avenues for understanding the ongoing transformations in health care. This article develops a sociomaterial approach to understanding digital health, showing how digitalisation affords practices of health and medicine to cope with and utilise the combined and interrelated challenges of increases in quantification (data‐intensive medicine), varieties of connectivity (telemedicine), and unprecedented modes of instantaneous calculation (algorithmic medicine). This enables an engagement with questions about what forms of knowledge, relationships and control are produced through different manifestations of digital health. The paper then sets out, in detail, three innovative strategies that can guide explorations and negotiations into the type of care we want to achieve through digital transformation. These strategies embed Karen Barad’s concept ofagential cutssuggesting that responsible cuts towards the materialisation of digital health require participatory efforts that recognise the affordances and the generativity of technology developments. Through the sociomaterial approach presented in this article, we aim to lay the foundations to reorient and sensitise innovation and care processes in order to create new possibilities and value‐centric approaches for promoting health in digital societies as opposed to promoting digital health per se.
Detection rates of a national fetal anomaly screening programme: A national cohort study
Authors: Aldridge Nicholas , Pandya Pranav , Rankin Judith , Miller Nicola , Broughan Jennifer , Permalloo Nadia , McHugh Annette , Stevens Sarah 
Published: August 2022

AbstractObjectiveTo measure condition‐specific detection rates for 14 physical conditions screened for by the NHS fetal anomaly screening programme (FASP) fetal anomaly (FA) ultrasound scan.DesignRetrospective audit of 12 694 diagnoses across a 3‐year national cohort.SettingAll English NHS and crown‐dependency hospital trusts providing maternity services.PopulationPregnancies booked for maternity services with an expected date of delivery between 1 April 2017 and 31 March 2020 and at least one diagnosis of a condition screened for by FASP.MethodsActive multi‐source ascertainment, linkage, audit and validation of clinical information to identify the subset of diagnoses meeting the condition‐specific positivity threshold for the FA scan.Main outcome measureThe accuracy of the FA scan compared with diagnostic reference standards.ResultsFA scan detection rates were: anencephaly 96.3% (95% confidence interval [CI] 81.7–99.3%), atrioventricular septal defect: 69.2% (95% CI 65.8–72.4%), bilateral renal agenesis: 98.7% (95% CI 95.4–99.6%), cleft lip: 89.5% (95% CI 87.8–90.9%), congenital diaphragmatic hernia: 60.8% (95% CI 56.5–65%), Edwards syndrome: 73.8% (95% CI 67.5–79.3%), exomphalos: 59.4% (95% CI 49.4–68.7%), gastroschisis: 88.6% (95% CI 79–94.1%), hypoplastic left heart syndrome: 92.7% (95% CI 90–94.8%), lethal skeletal dysplasia: 93.2% (95% CI 88.6–96%), Patau syndrome: 82.3% (95% CI 72.4–89.1%), spina bifida: 93.8% (95% CI 91.8–95.3%), tetralogy of Fallot: 75.4% (95% CI 72.1–78.4%) and transposition of the great arteries: 84.9% (95% CI 81.7–87.5%).ConclusionsThe performance of the FA scan is above the expectations set in 2010 for most conditions. For the remaining conditions, the majority of fetuses and babies affected are detected before the FA scan.
Telehealth for geriatric post‐emergency department visits to promote age‐friendly care
Authors: McQuown Colleen M. , Snell Kristina T. , Abbate Lauren M. , Jetter Ethan M. , Blatnik Jennifer K. , Ragsdale Luna C. 
Published: August 2022

AbstractObjectiveTo describe a feasibility pilot study for older adults that addresses the digital divide, unmet health care needs, and the 4Ms of Age‐Friendly Health Systems via the emergency department (ED) follow‐up home visits supported by telehealth.Data Sources and Study SettingData sources were a pre‐implementation site survey and pilot phase individual‐level patient data from six US Department of Veterans Affairs (VA) EDs.Study DesignA pre‐implementation survey assessed existing geriatric ED processes. In the pilot called SCOUTS (Supporting Community Outpatient, Urgent care & Telehealth Services), sites identified high‐risk patients during an ED visit. After ED discharge, Intermediate Care Technicians (ICTs, former military medics), performed follow‐up telephone, or home visits. During the follow‐up visit, ICTs identified “what matters,” performed geriatric screens aligned with Age‐Friendly Health Systems, observed home safety risks, assisted with video telehealth check‐ins with ED providers, and provided care coordination. SCOUTS visit data were recorded in the patient's electronic medical record using a standardized template.Data Collection/Extraction MethodsSites were surveyed via electronic form. Administrative pilot data extracted from VA Corporate Data Warehouse, May–October 2021.Principle FindingsSite surveys showed none of the EDs had a formalized way of identifying the 4 M “what matters.” During the pilot, ICT performed 56 telephone and 247 home visits. All home visits included a telehealth visit with an ED provider (n = 244) or geriatrician (n = 3). ICTs identified 44 modifiable home fall risks and 99 unmet care needs, recommended 80 pieces of medical equipment, placed 36 specialty care consults, and connected 180 patients to a Patient Aligned Care Team member for follow‐up.ConclusionsA post‐ED follow‐up program in which former military medics perform geriatric screens and care coordination is feasible. Combining telehealth and home visits allows providers to address what matters and unmet care needs.
Average weighted nucleotide diversity is more precise than pixy in estimating the true value of π from sequence sets containing missing data
Authors: Konopiński Maciej K. 
Published: August 2022

AbstractNucleotide diversity remains an important statistic in population genetic/genomic studies. Although recent advances in massive sequencing make generating sequence data sets cheaper and faster, currently used technologies often introduce substantial amounts of missing nucleotides in their output. A novel method of estimating π from data sets containing missing data – pixy ‐ has also recently been proposed. In this study, the pixy estimator, πpixy, was compared to average weighted nucleotide diversity, πW. The estimators were tested both on sequences simulated in fastsimcoal and real sequence sets. Both sets were modified by random insertion of missing nucleotides. Weighted nucleotide diversity performed better in all pairwise comparisons. It was characterized by a smaller error and a narrower distribution of the results. πpixy tends to overestimate the nucleotide diversity when both the proportion of missing data and the level of variation is low. Of the two estimators, only πW estimated the true nucleotide diversity in a part of the simulations. A simple formula for estimating πW allows for easy integration of the estimator in packages such as pixy, which would allow obtaining more precise estimates of nucleotide diversity either in a sliding window or for discrete genomic regions.
Alterations in high‐dimensional T‐cell profile and gene signature of immune aging in HIV‐infected older adults without viremia
Authors: Shin Min Sun , Park Hong‐Jai , Salahuddin Syim , Montgomery Ruth R. , Emu Brinda , Shaw Albert C. , Kang Insoo 
Published: August 2022

AbstractAlterations in the components of the immune system occur with aging. The introduction of combination antiretroviral therapy (ART) has dramatically improved life expectancy in human immunodeficiency virus (HIV) infected individuals by suppressing viral replication and increasing CD4+ T‐cell counts. Immunosenescence‐like changes, including the expansion of memory CD8+ T cells with senescent features, are reported in young HIV‐infected individuals who do not have clinically detectable viremia on ART. However, it is less known whether HIV infection affects the immunosenescent status in older HIV‐infected individuals. Here, we addressed this question in older HIV‐infected, HIV‐uninfected, and frail individuals (all groups age ≥65 years) by examining a set of aging‐associated genes in peripheral blood mononuclear cells (PBMCs) as well as by analyzing subsets of CD4+ and CD8+ T cells in depth using high‐dimensional CyTOF analysis. Older HIV‐infected individuals had increased expression of aging‐associated genes such as CX3CR1 in PBMCs which are related to IL‐7 receptor low effector memory (IL‐7Rαlow EM) CD8+ T cells, a cell population known to expand with age. The subsets of IL‐7Rαlow EM CD8+ T cells expressing senescent, cytotoxic, and inflammatory molecules, including CD57, perforin, and CX3CR1, as well as memory CD4+ T cells expressing CD161 and CXCR3, molecules associated with replication‐competent HIV‐1 harboring cells, were increased in older HIV‐infected individuals. Overall, older HIV‐infected individuals without detectable viremia on ART had augmented levels of age‐associated immune alterations in PBMCs, suggesting that HIV infection has a persistent impact on senescence in older HIV‐infected individuals despite the clinically controlled viremia.
Systematic review: Rates of psychopathology, substance misuse, and neuropsychological dysfunction among transitional age youth experiencing homelessness
Authors: Burke Colin W. , Firmin Elizabeth S. , Wilens Timothy E. 
Published: August 2022

AbstractBackground and ObjectivesTransitional age youth experiencing homelessness (TAY‐EH) bear a disproportionate burden of morbidity and mortality related to psychopathology, substance use disorders (SUD), and neuropsychological dysfunction. Prior reviews examining these conditions are now nearly a decade old, have focused on younger adolescent populations, or have utilized nonsystematic approaches. To our knowledge, no prior reviews have reported on all three of these domains in an integrated fashion. Here, we provide a contemporary, critical synthesis of the literature on the functioning of TAY‐EH in North America within these three domains.MethodsBased upon PRISMA guidelines, a search of PubMed, Medline, and PsycInfo databases was conducted, including literature published between January 2015 and June 2021.ResultsThe initial search yielded 2024 citations; 104 underwent full text review and 32 met inclusion criteria, with a final aggregate sample size of 13,516. Studies revealed elevated rates of mood disorders, PTSD, anxiety disorders, and alcohol misuse. There is insufficient data to draw generalizable conclusions regarding neuropsychological functioning, other SUD, or other psychiatric diagnoses. No studies reported on co‐occurrence of disorders among or between the domains of psychopathology, SUD, and neuropsychological dysfunction. Four studies used structured interviews for diagnoses, with the remainder relying upon brief screeners or self‐report measures.Conclusions and Scientific SignificanceTo our knowledge, this is the first systematic review to provide integrated findings on psychopathology, SUD, and neuropsychological dysfunction among TAY‐EH. Further research using structured, DSM‐based tools is needed to characterize rates of single and co‐occurring conditions to inform tailored treatment interventions.
Evaluation of the impact of The Little Things training on personal care assistants' confidence to communicate with residents in aged care
Authors: Mackey Phillipa Jane , Hampton Ilsa , Wells Yvonne , Haines Simon , Solly Kane 
Published: August 2022

AbstractObjectivesTo evaluate The Little Things training program, designed to assist personal care assistants (PCAs) from culturally and linguistically diverse (CALD) backgrounds to communicate more effectively with aged care residents.MethodsThis project included PCAs from residential aged care facilities (RACFs) and Certificate III students from registered training organisations (RTOs) in Melbourne, Australia. A control group (n = 18) was also included. Measures included the following: pre‐ and posttraining confidence to communicate and rankings of task importance; posttraining perceived change in confidence; and posttraining impacts on practice.ResultsAltogether, 75 PCAs and 30 RTO students participated in Intake I of the training and 31 PCAs and 34 RTO students in Intake 2. Confidence increased in The Little Things participants relative to those in the control group (β = 0.11, T = 1.99, p = 0.05). Change did not vary by Intake or whether someone was in the RACF or RTO group, F (2, 147) = 0.58, p = 0.5; nor by sociodemographic characteristics. Most training participants (84%) thought their ability to communicate with older people would ‘improve a lot’ as a result of the training. Training participants also ranked the importance of duties such as ‘Speaking in a friendly and informal way to older people’ more highly after than before the training (p = 0.01), while little change was observed in the control group.ConclusionsThe Little Things program increased training participants' confidence to communicate and shifted perceived priorities towards interacting with residents in a way that enhanced resident well‐being.
The Practice and Legitimacy of Border Control
Authors: Sandven Hallvard 
Published: August 2022

AbstractThis article interrogates the widely held, but rarely defended, view that states wield legitimate power over potential immigrants when and because they refrain from violating their human rights. I reconstruct a strong argument for this view, which turns on a claim about the limited power states claim over migrants. Drawing on recent empirical work, I show how this argument is inapplicable to the border regimes of a set of wealthy democracies. These regimes are characterized by a practice that is coordinated and extraterritorial in a way that undercuts the case for holding them to a minimal legitimacy standard. By participating in this practice, these states wield significant power over potential immigrants. I argue that this power exposes potential immigrants to novel risk, which in turn triggers a demand for the satisfaction of a higher standard of legitimation.