bluuebunny/crossref_metadata_2025_split huggingface dataset:
Social media ‘addiction’: The absence of an attentional bias to social media stimuli
Authors: Thomson K. , Hunter S. C. , Butler S. H. , Robertson D. J. 
Published: April 2021

AbstractBackground and aimsSocial media use has become a ubiquitous part of society, with 3.8 billion users worldwide. While research has shown that there are positive aspects to social media engagement (e.g. feelings of social connectedness and wellbeing), much of the focus has been on the negative mental health outcomes which are associated with excessive use (e.g. higher levels of depression/anxiety). While the evidence to support such negative associations is mixed, there is a growing debate within the literature as to whether excessive levels of social media use should become a clinically defined addictive behaviour.MethodsHere we assess whether one hallmark of addiction, the priority processing of addiction related stimuli known as an ‘attentional bias’, is evident in a group of social media users (N = 100). Using mock iPhone displays, we test whether social media stimuli preferentially capture users' attention and whether the level of bias can be predicted by platform use (self-report, objective smartphone usage data), and whether it is associated with scores on established measures of social media engagement (SMES) and social media ‘addiction’ severity scales (BSNAS, SMAQ).ResultsOur findings do not provide support for a social media specific attentional bias. While there was a large range of individual differences in our measures of use, engagement, and ‘addictive’ severity, these were not predictive of, or associated with, individual differences in the magnitude of attentional capture by social media stimuli.ConclusionsMore research is required before social media use can be definitively placed within an addiction framework.
Lactoferrin for the treatment of age-associated inflammation – A pilot study
Authors: Laskow T. , Langdon J. , Abadir P. , Xue Q.-L. , Walston J. 
Published: April 2021

AbstractBackgroundChronic inflammation (CI) is a common trait of aging associated with adverse outcomes including mortality. We hypothesized that recombinant human Lactoferrin (rhLf) would reduce chronic inflammation of aging.MethodsThirty-six community dwelling older adults were randomly assigned to rhLf or placebo treatment in 1:1 ratio for 3 months. IL-6, sTNFR1, Comprehensive Metabolic Panel (CMP), and Complete Blood Count (CBC) were measured at baseline, 1 month, 3 months, and 6 months. Physical and cognitive measures were completed at same timepoints, including 4-m walking speed (m/s), grip strength (kg), 6-min walking distance (m), home activity measured by accelerometer, trail making test – Part A (s) and – Part B (s), and Digit symbol substitution test (number correctly coded). Primary outcomes were differences in IL-6 and sTNFR1 concentrations evaluated by generalized linear model with log-link and gamma family distribution, controlling for baseline cytokine concentrations.ResultsrhLF was well-tolerated. There were a significant number of abdominal complaints and increased drop-out rate in placebo group. Participants in rhLf arm had non-significant lower mean percent increase in IL6 at 3 months (rhLf mean IL-6 6% lower than control,P= 0.843), and sTNFaR1 (rhLf mean 2% lower than control,P= 0.36). No significant changes were observed for the cognitive or physical measures.ConclusionTreatment with rhLf did not significantly alter serum IL6 or sTNFR1 concentrations of older adults. This study may have been underpowered to detect difference, but provided evidence that a larger sample-size could more definitively determine the effect of rhLF on age-associated CI.
Effect of zinc doping on electrical properties of LaAlO3 perovskite
Authors: Egorova Anastasia V. , Belova Ksenia G. , Animitsa Irina E. , Morkhova Yelizaveta A. , Kabanov Artem A. 
Published: April 2021

New solid solution with the general formula of LaAl1-xZnxO3-1/2x was prepared by a solid-state reaction route. According to XRD, the crystal structure of LaAlO3 is rhombohedral, while the solid solution possesses cubic symmetry. Homogeneity region of the solid solution LaAl1-xZnxO3-1/2x was narrow and limited to the maximum concentration of 5 mol. %. Computer simulations using crystalochemistry and density functional theory approaches showed that LaAlO3 has high energy barriers for O2–-ion transport (2.79 eV). These results are in good agreement with the low values of electrical conductivity obtained experimentally. The electrical conductivity of LaAl1-xZnxO3-1/2x was measured by impedance spectroscopy in the temperature range of 200–1000 °C. The partial substitution of Al3+ by Zn2+ was found to increase the electrical conductivity by ~2 order of magnitude. The electrical conductivity of doped phase LaAl0.95Zn0.05O2.975 as a function of oxygen partial pressure was measured, and the partial contributions (oxygen-ionic and electronic) were determined. It was found that the sample has mixed ionic and p-type electronic conductivity, while the electronic contribution increases with the rise of the temperature.
Phase equilibria in the YFeO3 – YСoO3 system in air
Authors: Bryuzgina A. V. , Urusova A. S. , Ivanov I. L. , Cherepanov V. A. 
Published: April 2021

YFe1-xСоxO3 solid solutions were prepared by glycerol-nitrate technique. The homogeneity range of solid solutions was studied within the temperature range 1173 – 1573 K. A continues series of solid solution below the decomposition temperature of YСоO3, which was shown to be equal to 1266 ± 6 K, begins to narrow at higher temperatures and becomes equal to 0 ≤ x ≤ 0.1 at 1573 K. The phase diagram of the YFeO3 – YСoO3 system in the “T – composition” coordinates was divided into three fields. Similar to the parent ternary oxides, all single-phase YFe1-xСоxO3 solid solutions possess orthorhombically distorted perovskite structure (Pnma space group). Unusual behavior of orthorhombic distortions in YFe1-xСоxO3 with temperature was explained by probable changes in spin state of Co3+ ions.
The Cross-Sector Collaboration for Development Policy of Rural Creative Economy: The Case of Bengkoang Creative Hub
Authors: Rosyadi Slamet , Sabiq Ahmad , Ahmad Abdul Aziz , Yamin Muhammad 
Published: April 2021

This paper examines a cross-sector collaborative model for development policy in a creative economy in a rural area setting. The creative economy based on the village’s creative potential is considered capable of contributing to the national economy, but it should be supported by public policies that are adaptive to the potential and needs of creative economy actors. The paper used a qualitative approach with case studies in Banyumas Regency, Central Java, Indonesia. This village represents one of the leading creative economy subsectors in Indonesia, which is culinary. The study found that collaboration among Penta Helix forces played multiple roles in driving rural creative actors and building rural creative ecosystems. The stages of collaboration were identified in strengthening organizational structure, program implementation, and organizational consolidation. Organizational capability and innovation have been growing in rural creative economy actors during cross-sector collaboration implementation. This study provides insights into how Penta Helix collaborates with rural creative actors to promote the rural creative economy. From a public policy perspective, this study fills a significant gap in the literature regarding rural development models that are not covered much in the creative economy policy.
Powerful Custom, Dominated Country: Domination of functionary Custom over Village Government in Kerinci
Authors: Maulana Rio Yusri , Wahid Makmun , Efendi Dori , Rakhman Moh. Arif , Yusuf M. , Lega Michael 
Published: April 2021

The discussion on the power relationship between the state and adat or customs is always exciting because although adat is most likely getting tension from the state through various regulations, it keeps signifying its existence. An interesting phenomenon that happened after the downfall of the New Order regime and the expansion of the Regional Autonomy System’s implementation was adat power’s reappearance at the local level. For instance, Adat Functionary in the Kerinci Regency signified their dominance over the village government. The studies about the relationship between adat and the state tend to put adat as an identity and spirit for gaining support, power, and fund also tools to deal with the government. This study begins with the fact that adat is dominant over the village government in decision-making. This study found in the Kerinci regency obtained a new government structure by the returning of adat power in governance, and affected the stability of the village administration, also used it as the solidarity mechanism of the community in Kerinci Regency to resolve various conflicts. Thus, the meaning of domination, which is commonly interpreted as something negative, is turning out to be a contrary one since it makes the community more solid through adat.
Venous Tumor Thrombus in Primary Bone Sarcomas in the Pelvis
Authors: Liang Haijie , Guo Wei , Tang Xiaodong , Yang Rongli , Yan Taiqiang , Yang Yi , Ji Tao , Sun Xin , Xie Lu , Xu Jie 
Published: April 2021

Background:
Few investigations of venous tumor thrombus (VTT) in primary pelvic bone sarcomas are available. We aimed to identify the prevalence, associated factors, and prognosis of VTT across different types of pelvic sarcomas and to propose an algorithm for management.

Methods:
We included 451 consecutive cases of primary, bone-derived, treatment-naive, pelvic sarcomas in this study. Demographic data and the results of initial laboratory tests, imaging examinations, and oncological evaluations were extracted and analyzed. Forty-four cases of VTT were diagnosed with radiographic examinations, and 18 of them were verified histologically.

Results:
The cohort consisted of chondrosarcomas (41.2%), osteosarcomas (30.4%), Ewing sarcomas (15.5%), bone-derived undifferentiated pleomorphic sarcomas (5.8%), and other bone sarcomas (7.1%). The prevalence of VTT was 9.8% in the whole group, and associated factors included a lactate dehydrogenase (LDH) level of ≥230.5 U/L and invasion of the L5-S1 intervertebral foramen. Patients with pelvic osteosarcoma had a high prevalence of VTT (22.6%), and the associated factors in this group included a chondroblastic subtype, an LDH level of ≥187 U/L, and invasion of the obturator foramen and the L5-S1 intervertebral foramen. Patients with VTT had a poor prognosis with a median overall survival time of 14 months. Subgroup analyses of localized pelvic osteosarcoma indicated that the presence of VTT decreased the median overall survival time (21.5 versus 54.0 months for those without VTT, p = 0.003), median recurrence-free survival time (18.6 versus 32.4 months, p = 0.020), and median metastasis-free survival time (11.2 versus 41.0 months, p < 0.001).

Conclusions:
VTT is most common in patients with pelvic osteosarcoma as compared with patients with other primary bone sarcomas, and it is associated with several factors. It is a negative prognostic factor. An algorithm for management of pelvic sarcomas with VTT stratified by the classification of the VTT might be beneficial, but further validation is necessary.

Level of Evidence:
Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
COVID-19: Impact on Orthopaedic Graduate Medical Education in the U.S.
Authors: Van Heest Ann , Brandt Aaron M. , Dyer George , Homer Cole J. , Murray Peter M. 
Published: April 2021

Abstract:
The COVID-19 crisis has challenged the U.S. health-care system in a variety of ways, including how we teach and train orthopaedic surgery residents and fellows. During the spring of 2020, the cessation of all elective surgical procedures and the diminished number of outpatient visits challenged graduate medical education. While residency programs in less affected areas may not have had to make many dramatic adjustments, some of those located in pandemic hotspots had to redirect trainees from orthopaedic rotations to COVID-19 units. No matter the region, the time that trainees have spent in rotations has been altered, and absences have occurred due to quarantines. This symposium summarizes the impact of restrictions related to the COVID-19 pandemic on residency and fellowship programs from the perspectives of the Accreditation Council for Graduate Medical Education (ACGME), a program director, and a graduating resident. Although new opportunities for virtual curricula, virtual surgical simulation, and virtual interviews have been innovated, residency programs and residents report primarily a negative effect from the pandemic due to decreased surgical volumes and the limitation of patient-care experiences. Ultimately, program directors have an obligation to the program, the trainee, and the general public to graduate only those residents and fellows who are truly prepared to practice independently; they have the responsibility of making the final decision regarding graduation. The COVID-19 pandemic has continued to underscore the need for competency-based medical education. Assessing competency includes evaluation of the knowledge, the operative skills, the nonoperative patient-care skills, and the professional behavior of each and every individual graduating from orthopaedic residency and fellowship training programs. A hybrid model for time and competency-based training, with established national standards not only for accreditation for our training programs but also for board certification of our graduating residents, was enhanced by the COVID-19 pandemic and is highlighted in this symposium.
Novel Graft Technique for Lumbopelvic Reconstruction After Sacral Tumor Resection
Authors: McLain Robert F. 
Published: April 2021

Case:
Reconstruction after sacral tumor resection carries a high risk of nonunion and requires a slow return to weight-bearing. A bilateral iliac-crest graft, mobilized on a muscular pedicle, was used to graft and fuse the spine and pelvis after resection of a massive sacral schwannoma. Long-term follow-up and three-dimensional computed tomography imaging demonstrate rapid incorporation and solid fusion, with hypertrophy of the graft struts and excellent return to function.

Conclusion:
This novel graft technique provides structural autograft bone that bridges the iliolumbar resection gap, providing a vascularized autograft that incorporates rapidly and reliably.
Quadrilateral Surface Restoration by Medial Buttressing Before Revision in Periprosthetic Acetabular Fracture
Authors: Boudissa Mehdi , Porcheron Geoffrey , Nowak Tobias , Hofmann Alexander , Wagner Daniel , Rommens Pol Maria 
Published: April 2021

Case:
We report a case of periprosthetic acetabular fracture with pelvic discontinuity (PAFPD) classified Paprosky IIIb around an infected hip resurfacing prosthesis. A 3-stage revision was performed with (1) implants removal and surgical debridement to treat the infection; (2) open reduction and internal fixation using a medial buttress plate to treat pelvic discontinuity; and (3) custom-made total hip replacement with acetabular-ring reinforcement. The patient recovered with excellent clinical and radiographic results at 4-year follow-up.

Conclusions:
In complex cases of PAFPD, a collaboration between pelvic trauma surgeons and orthopaedic hip surgeons allows to provide stability for revision surgeries with good outcomes.
Quantitative Characterization of Organic Pore Structure from Gas Adsorption in Lower Cretaceous Lacustrine Shales in the Songliao Basin, NE China
Authors: Gao Fenglin , Wang Chengxi , Song Yan , Wan Chengxiang , Xiong Fengyang , Li Zhuo , Moortgat Joachim 
Published: April 2021

Abstract
Organic matter (OM) pores are widely considered to be important for gas storage and transportation. In this work, we quantitatively analyze the pore structure of OM and its controlling factors through geochemical and petrologic analyses, optical microscope, OM isolation, and adsorption isotherms. These analyses were carried out on lacustrine shale samples from the Lower Cretaceous Shahezi Formation, which is located in the Changling Fault Depression in Songliao Basin. The results show that the content of soluble OM (SOM) is low, accounting for 0.26%-3.75% of total OM. The contribution of pore development from SOM itself is limited. After extraction of SOM by chloroform, pore volume (PV), specific surface area (SSA), and average pore diameter (APD) exposed to gas molecules greatly increase. The existence of SOM has an obvious effect on pores of &gt;10 nm, especially the clay mineral-related pores that contribute the most to the total PV. The content of kerogen is higher than SOM and accounts for 9.9%-65.5% (averaging 24.0%) of total PV in bulk shale, only second to minerals. More importantly, kerogen is the dominant contributor to organic PV, accounting for 95.8%-99.7% (averaging 98.3%) of the total organic PV. The pores developed in the kerogen peak at 0.4-0.7 nm and 10-30 nm. The solid bitumen (SB) followed by vitrinite and inertinite in kerogen contributes the most to the total kerogen PV.
Perspective Architectural Techniques for the Formation and Development of Public Spaces in Hospitals
Authors: BULAKH Irina 
Published: April 2021

Abstract
The paper is devoted to important issues of perspective modern directions and methods of organizing public space in hospitals. The innovative world design experience of the newest hospitals is considered, in which places of communication for people were organized in a non-traditional way and received a more functionally intense form. The following latest architectural and planning techniques have been identified and systematized: “pedestrian street”, “hospital-park”, “courtyard”, intuitive orientation and “open room”. The experience of the considered ways of organizing spaces for communication, leisure and recreation for visitors, patients and staff of medical complexes in the design of modern healthcare facilities and reconstruction of existing hospitals will significantly increase the emotional and physical comfort of medical buildings visitors, promote design customization and development of healing potential of the architectural environment and consequently improve the quality and efficiency of treatment delivery.
Innovative Office Workplaces
Authors: PIKLIKIEWICZ-KĘSICKA Izabela 
Published: April 2021

Abstract
The paper aims is to present the situation of the Polish creative sector offices environment against the background of European examples. The research material was developed on the basis of literature, survey and statistical research. Significant differences between Polish and foreign office buildings have been identified in the scope of workspace arrangements. The results of the research classify systematise of new functional zones for employees, who are expected to shape the future vision of our world.
Lessons of the Lost Shopping Complex of the Late 19th Century
Authors: SMOLENSKA Svitlana , BORYSENKO Artem 
Published: April 2021

Abstract
The paper is dedicated to the study and visual reconstruction of the Old Arcade – the first commercial structure of its kind for the Ukrainian city of Kharkiv, which was irrevocably lost during WWII. Its peculiar architecture reflected specifics of the place and way of citizens’ life. Its seven decades-long popularity and success as a commercial complex intrigue to this day. The methods of study consist of an analysis of texts (journal articles and books), visual documents (photographs and maps) depicting the central part of the city in 1870–1940s, as well as an on-site examination of other Kharkiv’s buildings from the end of 19th century. They also include a comparison with studies on the development of towns of adjacent regions, as conducted by other researchers. This allows authors of the paper to propose the first hypothetical spatial model of the Old Arcade, describing its supposed construction and stylistic solutions, as well as highlighting the stages of its transformation and the causes for its destruction during the war. The lessons of its spatial and visual integration with urban environment can be of use to designers and researchers of modern shopping complexes.
The Overview of Fracture Mechanics Models for Concrete
Authors: AKRAM Amanda 
Published: April 2021

Abstract
Fracture mechanics of concrete is a complex matter still thoroughly researched from different angles. It is not an easy task to describe fracture process in concrete, as there are many factors affecting crack development and propagation. Practical applications of fracture mechanics could allow engineers to design concrete structures more effectively and safely. At the minimum, it could help estimate the “safe” period of time left before the unstable, dangerous crack propagation. This utilitarian goal was the reason for many researchers to invent numerous theoretical models in order to describe the crack occurrence better. However, dealing with various analytical problems was not a simple matter and thus existing models of fracture mechanics for concrete have different limitations. Over the years first fracture theories for concrete were reviewed repeatedly. All of these investigations lead to modifications of older models in order to overcome found drawbacks, which proved not to be an easy task. Recently, new approaches to fracture analyses seemed to produce promising results, like universal size effect law (USEL) or modified two parameter fracture model (MTPM) with alternative ways for evaluating fracture parameters. In the paper some of them will be discussed together with other fracture models, starting from some of the very first ones introduced for concrete, like fictitious crack model (FCM) and crack band model (CBM).
Energy Efficiency Assessment of Heat Insulation Building Products: Fuzzy-Probabilistic Approach
Authors: BIKS Yuriy , LYALYUK Olena , RATUSHNYAK Georgiy , RATUSHNYAK Olga , LYALYUK Andrey 
Published: April 2021

Abstract
The expediency of using heat-insulating construction products from a straw at the erecting of energy-efficient envelope constructions is considered in the paper. The hierarchical model in the form of an inference tree of the factors influencing the target function – reliability of energy efficiency of heat-insulating building products made of straw has resulted. A fuzzy matrix of knowledge is proposed which reflects the influence of thermophysical, physic-mechanical and durability parameters on the target function. The hierarchical connections between classified factors proceeded by apparatus of fuzzy logic and linguistic variables. A system of fuzzy logical equations which describes linguistic expressions of input variables according to the corresponding terms is proposed. In the research the expressions which describe the objective function – reliability of energy efficiency of heat-insulating construction products made of straw were obtained. It was made with the of membership functions following linguistic variables, by taking into account both qualitative as well as quantitative factors of influence. Represented in the paper model can be used as the design and engineering tool for the prediction of thermal performance of any multilayered wall assembly at the design stage of the project to assess complex energy efficiency parameters, which could be applied in practice during the decision-making process.