bluuebunny/crossref_metadata_2025_split huggingface dataset:
Confirmatory composite analysis using partial least squares: setting the record straight
Authors: Schuberth Florian 
Published: July 2020

AbstractConfirmatory composite analysis (CCA) is a subtype of structural equation modeling that assesses composite models. Composite models consist of a set of interrelated emergent variables, i.e., constructs which emerge as linear combinations of other variables. Only recently, Hair et al. (J Bus Res 109(1):101–110, 2020) proposed ‘confirmatory composite analysis’ as a method of confirming measurement quality (MCMQ) in partial least squares structural equation modeling. As a response to their study and to prevent researchers from confusing the two, this article explains what CCA and MCMQ are, what steps they entail and what differences they have. Moreover, to demonstrate their efficacy, a scenario analysis was conducted. The results of this analysis imply that to assess composite models, researchers should use CCA, and to assess reflective and causal–formative measurement models, researchers should apply structural equation modeling including confirmatory factor analysis instead of Hair et al.’s MCMQ. Finally, the article offers a set of corrections to the article of Hair et al. (2020) and stresses the importance of ensuring that the applied model assessment criteria are consistent with the specified model.
Frontline robots in tourism and hospitality: service enhancement or cost reduction?
Authors: Belanche Daniel , Casaló Luis V. , Flavián Carlos 
Published: July 2020

AbstractRobots are being implemented in many frontline services, from waiter robots in restaurants to robotic concierges in hotels. A growing number of firms in hospitality and tourism industries introduce service robots to reduce their operational costs and to provide customers with enhanced services (e.g. greater convenience). In turn, customers may consider that such a disruptive innovation is altering the established conditions of the service-provider relationship. Based on attribution theory, this research explores how customers’ attributions about the firm motivations to implement service robots (i.e. cost reduction and service enhancement) are affecting customers’ intentions to use and recommend this innovation. Following previous research on robot’s acceptance, our research framework analyzes how these attributions may be shaped by customers’ perceptions of robot’s human-likeness and their affinity with the robot. Structural equation modelling is used to analyze data collected from 517 customers evaluating service robots in the hospitality industry; results show that attributions mediate the relationships between affinity toward the robot and customer behavioral intentions to use and recommend service robots. Specifically, customer’s affinity toward the service robot positively affects service improvement attribution, which in turn has a positive influence on customer behavioral intentions. In contrast, affinity negatively affects cost reduction attribution, which in turn has a negative effect on behavioral intentions. Finally, human-likeness has a positive influence on affinity. This research provides practitioners with empirical evidence and guidance about the introduction of service robots and its relational implications in hospitality and tourism industries. Theoretical advances and future research avenues are also discussed.
Assisting the Visually Impaired in Multi-object Scene Description Using OWA-Based Fusion of CNN Models
Authors: Alhichri Haikel , Bazi Yakoub , Alajlan Naif 
Published: July 2020

AbstractAdvances in technology can provide a lot of support for visually impaired (VI) persons. In particular, computer vision and machine learning can provide solutions for object detection and recognition. In this work, we propose a multi-label image classification solution for assisting a VI person in recognizing the presence of multiple objects in a scene. The solution is based on the fusion of two deep CNN models using the induced ordered weighted averaging (OWA) approach. Namely, in this work, we fuse the outputs of two pre-trained CNN models, VGG16 and SqueezeNet. To use the induced OWA approach, we need to estimate a confidence measure in the outputs of the two CNN base models. To this end, we propose the residual error between the predicted output and the true output as a measure of confidence. We estimate this residual error using another dedicated CNN model that is trained on the residual errors computed from the main CNN models. Then, the OAW technique uses these estimated residual errors as confidence measures and fuses the decisions of the two main CNN models. When tested on four image datasets of indoor environments from two separate locations, the proposed novel method improves the detection accuracy compared to both base CNN models. The results are also significantly better than state-of-the-art methods reported in the literature.
Environmental protection problems in the areas of former mines with emphasis on sinkholes: selected examples
Authors: Strzałkowski P. , Litwa P. 
Published: July 2020

AbstractThe paper concerns an analysis of causes of sinkholes in the area of the former mines located in the Upper Silesia (Poland). The conducted statistical analysis allowed to determine the share of some types of shallow excavations in the formation of sinkholes. Analyses covered the period from 1966 to 2003 and records of more than 300 sinkholes. The research team determined—on the basis of the considerations—that the factor that poses the greatest threat and contributes to the formation of sinkholes during the operation of the mine is shallow goafs. Other such factors are dog headings that have not been decommissioned yet. It can be assumed that they will also generate a significant number of collapses in mines that are no longer in operation. The transition into the state of cave-in of old and shallow dog headings is often caused by loss of load-bearing capacity of a wooden roof support which biodegrades. Collapses linked to these excavations may be predicted with the use of tools such as the method presented in the paper.
Orthorexic tendencies in the general population: association with demographic data, psychiatric symptoms, and utilization of mental health services
Authors: Greetfeld Martin , Hessler-Kaufmann Johannes Baltasar , Brandl Beate , Skurk Tomas , Holzapfel Christina , Quadflieg Norbert , Schlegl Sandra , Hauner Hans , Voderholzer Ulrich 
Published: July 2020

Abstract
Purpose
Orthorexia nervosa (ON) is characterized by a preoccupation to eat healthily and restrictive eating habits despite negative psychosocial and physical consequences. As a relatively new construct, its prevalence and correlates in the general population and the associated utilization of mental health services are unclear.

Methods
Adults from the general population completed the Düsseldorf Orthorexia Scale (DOS), the Patient Health Questionnaire (PHQ), the Short Eating Disorder Examination (SEED).

Results
Five-hundred eleven (63.4% female) participants with a mean age of 43.39 (SD = 18.06) completed the questionnaires. The prevalence of ON according to the DOS was 2.3%. Considering only effects of at least intermediate size, independent samples t-tests suggested higher DOS scores for persons with bulimia nervosa (p < .001, Cohen’s d = 1.14), somatoform syndrome (p = .012, d = .60), and major depressive syndrome (compared p < .001, d = 1.78) according to PHQ as well as those who reported to always experience fear of gaining weight (p < .001, d = 1.78). The DOS score correlated moderately strong and positively with the PHQ depression (r = .37, p < .001) and stress (r = .33, p < .001) scores as well as the SEED bulimia score (r = .32, p < .001). In multivariate logistic regression analyses, only PHQ depression scores were associated with past psychotherapeutic or psychiatric treatment (OR = 1.20, p = .002) and intake of psychotropic medication in the last year (OR = 1.22, p = .013).

Conclusions
The prevalence of ON was low compared to international studies but is in line with other non-representative German studies. Orthorexic tendencies related to general mental distress and eating disorder symptoms but were no independent reason for seeking treatment.

Level of evidence
Level V, cross-sectional descriptive study.
4440 Enhanced radiation therapy using chlorin-e6 conjugated gold nanoparticles
Authors: Jenkins Samir V , Griffin Robert J. 
Published: July 2020

OBJECTIVES/GOALS:
Development of gold nanoparticles covalently linked to a photosensitizer for use to enhance radiation therapy. The particles will be thoroughly characterized structurally and mechanistically. The gold particles should enhance radiation activity by closer proximity to the photosensitizer and by increasing particle accumulation in the tumor.METHODS/STUDY POPULATION:
Gold nanoparticles were synthesized and coated with amine-terminated poly(ethylene) glycol, then covalently conjugated to chlorin e6, a known FDA-approved photosensitizer. The system was characterized using UV-Vis spectroscopy, transmission electron microscopy, and nanoparticle tracking analysis. The generation of reactive oxygen species was measured after X-irradiation. Enhanced cell killing was evaluated clonogenically in addition to assessment of in vivo efficacy and tumor pathology.RESULTS/ANTICIPATED RESULTS:
Conjugation of the particle to the photosensitizer was achieved, and the molecule was detected by UV-Vis spectroscopy. TEM and NTA showed no aggregation of the particles, and an increase in reactive oxygen species generation was observed. The conjugates increased cell killing during radiation treatment, whereas neither the particle alone nor the photosensitizer significantly affected clonogenic survival at the same concentrations. Breast tumors grown in immunocompetent mice showed increased necrotic tissue after a single 20 gy treatment in the presence of the conjugate.DISCUSSION/SIGNIFICANCE OF IMPACT: Radiation therapy is widely used clinically, but dosage is limited largely to prevent injury to adjacent normal tissue. By increasing the local effect of radiation therapy, our gold conjugate has the potential to augment the effective radiation dose in the tumor, thereby reducing damage to healthy tissue and providing a more effective therapy.
4186 Single IRB and the CTSI: Liaison Model for the IRB Reliance Process
Authors: Caldwell Christine Sego , Trullinger Amy J. , Denne Scott 
Published: July 2020

OBJECTIVES/GOALS: Navigating the NIH Single IRB Policy has been challenging for investigators, study teams, and Human Research Protection Programs (HRPP). In response, the Indiana Clinical and Translational Sciences Institute (CTSI) created an innovative Single IRB Project Manager role (sIRB PM), uniquely placed within the Indiana CTSI. METHODS/STUDY POPULATION: The Single IRB Project Manager role was created in 2018 by the Indiana CTSI in response to the NIH Single IRB Policy for Multi-Site Research. The role of the sIRB PM is to serve as a liaison between the Indiana University HRPP, lead site, coordinating center, and participating sites when Indiana University serves as the Single IRB. This model has proven useful to both the IRB and lead site, notably in the following ways:
At study start-up, the sIRB PM can handle complicated communications among sites and the IRB at the same time the lead site is responsible for many other administrative tasks related to start-up. By absorbing the workload of IRB approval for multiple sites, the sIRB PM provides the lead site more capacity to handle other essential tasks.The sIRB PM translates new terminology and facilitates processes that are new for sites.RESULTS/ANTICIPATED RESULTS: Early assessment of this program is predominantly positive. The sIRB PM currently supports 24 external sites. In an NIA-funded 13 site study, all sites were added within 9 months of initial IRB approval of the protocol. This role fills a gap that benefits:
IRB staff by allowing them to fulfill their duties of screening and review while leaving some of the reliance organization to the sIRBPM.Lead PI by allowing them to focus on conducting the research instead of the many administrative tasks required for single IRB review.Participating sites by having a liaison to enter their amendments and reportable events into an otherwise closed IRB software system.All parties by having the sIRB PM manage document organization, storage, and distribution study-wide.DISCUSSION/SIGNIFICANCE OF IMPACT: The CTSI sIRB PM role effectively shifts administrative work caused by the sIRB mandate by merging research coordinator experience with regulatory experience while building upon an existing strong relationship with the HRPP. Future focus is on process education, standardizing pricing structure, and ensuring sufficient budget support in grants.
4042 Enhancing Scientific Rigor, Reproducibility, and Reporting in Translational Science Training and Practice
Authors: Vaughan Roger , Covey Matthew , Romanick Michelle , Carvalloza Anthony , Coller Barry S. 
Published: July 2020

OBJECTIVES/GOALS: Irreproducible and incompletely reported research lead to misallocated resources, wasted effort in pursing inappropriate avenues of investigation, and loss of public trust. To address this challenge, we employed a Team Science approach to create a multi-modal program to support Rigor, Reproducibility, and Reporting in Translational Science. METHODS/STUDY POPULATION: We conducted literature searches to reveal sources of irreproducibility and recommended corrective actions, invited leaders in the field to give lectures on opportunities to support reproducible science, and worked with the Rockefeller team science leadership group to instill an overarching rigor approach, infused into all training efforts. This multifaceted program was labeled R3 (R-cubed) for Enhancing Scientific Rigor, Reproducibility, and Reporting. RESULTS/ANTICIPATED RESULTS: Didactic Courses:
Introduction to Biostatistics and Critical Thinking – focus on pitfalls in inferential statistics, consequences of poor research, and errors in published research.Scientific Writing – teaches methods and procedures in writing to ensure reproducibility. Lecture SeriesEstablished nine lectures on topics related to R3, including Data Management, Statistical Methods, Genomic Analyses, Data Repositories, Data Sharing, Pharmacy Formulation, and e-lab notebooks. WebsiteCreating a comprehensive website as repository for research, methods, programs, updates, and improvements related to R3. KL2 Clinical Scholars Seminars and NavigationScholars participate in seminars and tutorials to discuss opportunities to improve R3 across the research life-course.DISCUSSION/SIGNIFICANCE OF IMPACT: Striving for research reproducibility takes focused energy, discipline, and vigilance, but the effort is worthwhile as rigorous and reproducible science is the prerequisite for successful translation of great discoveries into improved health. CONFLICT OF INTEREST DESCRIPTION: none
THE COMBINATORICS OF TENSOR PRODUCTS OF HIGHER AUSLANDER ALGEBRAS OF TYPEA
Authors: MCMAHON JORDAN , WILLIAMS NICHOLAS J. 
Published: July 2020

AbstractWe consider maximal non-l-intertwining collections, which are a higher-dimensional version of the maximal non-crossing collections which give clusters of Plücker coordinates in the Grassmannian coordinate ring, as described by Scott. We extend a method of Scott for producing such collections, which are related to tensor products of higher Auslander algebras of typeA. We show that a higher preprojective algebra of the tensor product of twod-representation-finite algebras has ad-precluster-tilting subcategory. Finally, we relate mutations of these collections to a form of tilting for these algebras.
COLONIAL PIG-STICKING, IMPERIAL AGENDAS, AND NATURAL HISTORY IN THE INDIAN SUBCONTINENT
Authors: OOMMEN MEERA ANNA 
Published: July 2020

AbstractAs the sport that purportedly enhanced martial conditioning of the ‘dominant’ race, pig-sticking assumed critical importance for the survival of the British in India. When numerous local insecurities and large-scale anxieties threatened the empire, hunting pursuits involving the wily Indian pig, it was said, made soldiers out of boys; the attendant spectacles of masculinity aimed to exert symbolic dominance over the restive Indian masses. The sport also served as an avenue for upward mobility for the subaltern soldier attempting to upstage aristocratic hunting performances in England and India. While masculinity and symbolic governance have been analysed repeatedly in critiques of hunting, sportsmen's contributions to natural history have seen limited analyses. Here, I show that the local intricacies of pig-sticking motivated a superlative understanding of the Indian wild boar, a tricky, unpredictable customer with a vile temper, and a ready propensity to attack its pursuers. Pig-sticking entailed a multi-faceted immersion with both land and people, incorporating hybrid knowledge-making, shaped within the contact zone of indigenous and colonial encounter. Further, while agreeing with post-colonial critiques on sport and imperialism, I propose looking beyond colonial exceptionalism to situate big-game hunting within the larger scholarship on costly signalling and hunting for prestige among human societies.
Fossil Usnea and similar fruticose lichens from Palaeogene amber
Authors: Kaasalainen Ulla , Rikkinen Jouko , Schmidt Alexander R. 
Published: July 2020

AbstractFruticose lichens of the genus Usnea Dill. ex Adans. (Parmeliaceae), generally known as beard lichens, are among the most iconic epiphytic lichens in modern forest ecosystems. Many of the c. 350 currently recognized species are widely distributed and have been used as bioindicators in air pollution studies. Here we demonstrate that usneoid lichens were present in the Palaeogene amber forests of Europe. Based on general morphology and annular cortical fragmentation, one fossil from Baltic amber can be assigned to the extant genus Usnea. The unique type of cortical cracking indirectly demonstrates the presence of a central cord that keeps the branch intact even when its cortex is split into vertebrae-like segments. This evolutionary innovation has remained unchanged since the Palaeogene, contributing to the considerable ecological flexibility that allows Usnea species to flourish in a wide variety of ecosystems and climate regimes. The fossil sets the minimum age for Usnea to 34 million years (late Eocene). While the other similar fossils from Baltic and Bitterfeld ambers cannot be definitely assigned to the same genus, they underline the diversity of pendant lichens in Palaeogene amber forests.
Race and language teaching
Authors: Von Esch Kerry Soo , Motha Suhanthie , Kubota Ryuko 
Published: July 2020

AbstractIn this review article on race and language teaching, we highlight an urgent need for the international educational community to continue to develop a complex understanding of how language teaching and learners’ lives are shaped by our global history of racist practices of colonial expansion, including settler colonialism and transatlantic slavery. We outline the genesis of research on race and language teaching and review literature that reflects a recent increase in scope and range of studies that problematize the workings of race and racism in language teaching and point to hopeful solutions for addressing effects of racial inequities. We conceptualize two key terms, ‘race’ and ‘language,’ then overview theories that appeared most significant in the research literature. We explore five interconnected themes that featured prominently throughout the existing literature on race and language teaching: standard language ideology and racial hegemony, the idealized and racialized native speaker, racial hierarchies of languages and language speakers, racialization and teacher identity, and race-centered approaches to pedagogies and educational practices. We offer a critical analysis of the current status of scholarship on race and language teaching, including gaps and necessary reframing, and conclude with implications for future directions and questions arising from the work.
Current Operational Model for Veterinary Care in Large Animal Shelters During Disasters
Authors: Dieckmann Hayley G. , Costa Lais R.R. , Madigan John E. 
Published: July 2020

AbstractStandardization of operating guidelines for veterinary care in evacuation and emergency animal shelters is imperative for an organized response and to facilitate treatment and prevention of medical conditions stemming from the effects of a disaster and the associated outcomes of sheltering. Safeguarding animal welfare through creating guidelines should expedite care, assure consistency, and provide appropriate safety measures for animals and veterinary medical providers. Veterinary integration into an incident command system (ICS) and response training allows for proper allocation of roles and responsibilities, as well as coordination of veterinary supplies and personnel. Central components of the operational model include guidelines for animal identification, triage, medical records, medical treatments, and discharge instructions. An outline for communication with disaster response agencies, as well as animal owners, is aimed to inform appropriate conduct. Improving the animal component of disaster response is integral in meeting societal needs and improving animal welfare in the face of a disaster.