bluuebunny/crossref_metadata_2025_split huggingface dataset:
A questão das gerações no campo da gestão de pessoas: tema emergente?
Authors: Cordeiro Helena Talita Dante , Freitag Bárbara Beatriz , Fischer André Luiz , Albuquerque Lindolfo Galvão de 
Published: November 2020

O objetivo neste estudo é analisar a produção acadêmica sobre Gerações no campo da Gestão de Pessoas, a partir do levantamento bibliográfico de artigos publicados em fontes selecionadas de acordo com a classificação WebQualis e do índice Journal Citation Reports (JCR). Foram selecionados 64 artigos publicados entre janeiro de 2001 e outubro de 2011. Os artigos internacionais se destacam pela profundidade teórica e uso de conceitos sociológicos e psicológicos. No Brasil, a publicação foi encontrada, exclusivamente, em anais de congresso. O crescimento do número de publicações nos últimos anos permite constatar a emergência do tema.
Relationships Among Perceived Value, Satisfaction, and e-Trust: An e-CRM View of Online Restaurant Consumption
Authors: Zhang Gang , Wang Zongshui , Zhao Hong 
Published: November 2020

AbstractThis paper aims to propose a new trend in research which integrates the online customer relationship management through the perspectives of perceived value, satisfaction, and e-trust regarding the online restaurant in Chinese e-CRM business backgrounds. This study constructs a structural equation model to analyze the online restaurant marketing with the research perspective of the relationships among perceived value, satisfaction and e-Trust, corresponding to the cognitive belief, affective experiences and cognitive behavior of e-CRM. This model proposes six hypotheses concerning the relationships among perceived value, satisfaction and e-trust, aiming to demonstrate the predominant factors affecting the online restaurant sales and further to have a better understanding of the customers’ preferences on placing orders and purchases in the online context. The results show that there is a series of connections among perceived value, satisfaction and e-trust, and most of them are important. First, the perceived value has an incentive effect on satisfaction, e-trust, and customers’ commitment to a relationship. Second, satisfaction has a positive impact on e-trust and leads to the commitment to a relationship. Third, e-trust positively affects the consumer commitment to a relationship. In addition, production quality, service quality and price fairness have a significant impact on the perceived value.
Alloying the Melt of Sliding Bearings Based on Babbitt
Authors: Sheleg V. K. , Levantsevich M. A. , Pilipchuk Y. V. , Kravchuk M. A. , Bogdanovich I. A. , Bogdanova T. Ya. 
Published: November 2020

Abstract.A device design is proposed that makes it possible to obtain composite castings of sliding bearings based on babbitt by mixing alloying additives from antifriction powders of solid lubricants (graphite, molybdenum disulfide, etc.) into the melt, having a density significantly lower than the density of babbitt itself. The principle of mixing is based on the use of numerous turbulent flows resulting from the rotation of a gating rod with a wire pile in the melt material, the packing density coefficient of which is not less than 0.1. Due to the suction effect of these flows, non-metallic particles of solid lubricant powder do not float to the surface of the melt and, after crystallization, remain in the body of the casting. The supply of alloying powder of solid lubricant is carried out simultaneously with the supply of the babbitt melt through the central and distribution gating channels made in a rotating rod. Under the action of centrifugal forces, powder particles and melt material flow through distribution channels to the walls of the mold (mold), passing through the rotation zone of the metal pile. In this case, intensive mixing of the powder particles with the melt material occurs due to the suction effect of turbulent flows arising behind the moving pile. In addition, as a result of the rotation of the wire pile, dendritic constituents are crushed in babbitt castings. Metallographic studies of the castings obtained on the developed device have shown that the structure of the casting obtained by traditional technology contains large quantities of solid crystals of intermetallic compounds SnSb and Cu3Sn, while in the structure of the casting obtained using the proposed device, along with the aforementioned intermetallic compounds, particles of solid lubricant C + MoS2powder embedded in the crystallized melt are observed.
Prediction of Penetration Rate for PDC Bits Using Indices of Rock Drillability, Cuttings Removal, and Bit Wear
Authors: Mazen Ahmed Z. , Rahmanian Nejat , Mujtaba Iqbal , Hassanpour Ali 
Published: November 2020

SummaryPredicting rate of penetration (ROP) has gained considerable interest in the drilling industry because it is the most-effective way to improve the efficiency of drilling and reduce the operating costs. One way to enhance the drilling performance is to optimize the drilling parameters using real-time data. The optimization of the drilling parameters stands on the fact that drilling parameters are interrelated; that is, corrections in one factor affect all the others, positively or negatively.Analysis of the available models in the literature showed that they did not take into account all factors, and therefore, they might underestimate the ROP. To improve the accuracy of predicting the bit efficiency, a new ROP model is developed to preplan and lower the drilling costs. This approach introduces three parts of the process that were developed to describe the challenge of predicting ROP: aggressiveness or drillability, hole cleaning, and cutters wear, which are interrelated to each other. The approach discusses each process individually, and then the influence of all three factors on ROP is assessed. Taking into account the drilling parameters and formation properties, ROP1 is estimated by use of a new equation. Then, lifting the produced cutting to the surface and evaluating how that affects the bit performance is proposed in the second part of the process (hole cleaning). Finally, wear index is introduced in the third part (wear condition) to predict the reduction of ROP2 caused by cutter/rock friction.The approach serves and could be considered as a baseline to identify all factors that can affect the bit performance. The developed model equations are applied to estimate ROP in three vertical oil wells with different bit sizes and lithology descriptions in Libya. The results indicate that the driven model provides an effective tool to predict the bit performance. The results are found in good agreement with the actual ROP values and achieve an enhancement of approximately 40% as compared to the previous models.
A Novel Double-Group Crosslinked Hydrogel with High Thixotropy for Water Control in Horizontal Wells
Authors: Li Gang , Chen Lifeng , Fu Meilong , Wang Lei , Chen Yadong , Chen Lei , Zeng Huiyong 
Published: November 2020

Summary
Horizontal wells that are completed with slotted liners often suffer from a severe water-production problem, which is detrimental to oil recovery. It is because the annulus between the slotted liners and wellbore cannot be fully filled with common hydrogels with poor thixotropy, which determines the ultimate hydrogel filling shape in the annulus. This paper presents a novel hydrogel with high thixotropy to effectively control water production in horizontal wells. This study is aimed at evaluating the thixotropic performance, gelation time, plugging performance, and degradation performance. The thixotropic performance of the new hydrogel was also investigated by measuring its rheological properties and examining its microstructures. It was found that the new hydrogel thickened rapidly after shearing. Its thixotropic recovery coefficient was 1.747, which was much higher than those of traditional hydrogels. The gelation time can be controlled in the range of 2 to 8 hours by properly adjusting the concentrations of the framework material, crosslinker, and initiator. The hydrogel could be customized for mature oil reservoirs, at which it was stable for more than 90 days. A series of laboratory physical modeling tests showed that the breakthrough pressure gradient and the plugging ratio of the hydrogel in sandpacks were higher than 9.5 MPa/m and 99%, respectively. At the same time, it was found that the hydrogel has good degradation properties; the viscosity of the hydrogel breaking solution was 4.22 mPa·s. Freeze-etching scanning-electron-microscopy examinations indicated that the hydrogel had a uniform grid structure, which can be broken easily by shear and restored quickly. This led to the remarkable thixotropic performance. The formation of a metastable structure caused by the electrostatic interaction and coordination effect was considered to be the primary reason for the high thixotropy. The successful development of the new thixotropic hydrogel not only helps to control water production from the horizontal wells, but also furthers the thixotropic theory of hydrogel. This study also provides technical guidelines for further increasing the thixotropies of drilling fluids, fracturing fluids, and other enhanced-oil-recovery polymers that are commonly used in the petroleum industry.
Feasibility Study of Dual-Function Chemical in Reducing Surfactant Adsorption and Interfacial Tension for Chemical Enhanced Oil Recovery Application
Authors: Md Akhir Nur Asyraf , Hamid Afif Izwan , Saaid Ismail Mohd , Idris Ahmad Kamal , Nik Norizam Nik Nor , Yusof Nik Kamarulzaman 
Published: November 2020

Summary
The performance of a low-cost and biodegradable dual-function chemical was evaluated based on its attainment in reducing the interfacial tension (IFT) and surfactant adsorption in synthetic seawater at a temperature of more than 90°C. The phase behavior, interfacial tension, and static adsorption tests were conducted for the feasibility study of a dual-function chemical for a chemical enhanced oil recovery application. The experimental matrices were constructed using Design Expert (Stat-Ease, Minneapolis, Minnesota, USA). Alkyl ether carboxylate (AEC) and amido propyl betaine (APB) were identified for the study to be tested with the dual-function chemical at a temperature of more than 90°C in synthetic seawater. In the phase behavior study, the volume ratio of the aqueous phase to the Malaysian crude oil was kept 1:1. The interfacial tension between the surfactant and dual-function chemical system against the crude oil was performed by using a spinning drop method. Meanwhile, the static adsorption was conducted by using the crushed core at room temperature for up to 30 days, and the analysis was conducted using a high-performance liquid chromatography method. In comparison with two types of surfactants, the dual-function chemical works best with the AEC surfactant in order to reach an ultralow interfacial tension (less than 10−3 mN/m) within 60 minutes. An ultralow interfacial tension for APB surfactant can only be obtained at an earlier time. In contrast, the phase behavior study for AEC and APB surfactants and dual-function chemical obtained was a Type II(−) microemulsion. In the static adsorption study, the dual-function chemical (&gt;0.5 wt%) significantly helped in reducing the adsorption of AEC and APB surfactants by up to 73%. Based on the obtained results, the dual-function chemical worked more efficiently when compounded with AEC than APB surfactant at the same surfactant concentration and reservoir conditions. The findings of this feasibility study are worthwhile for the potential application of dual-function chemical for chemical enhanced oil recovery.
SARS-CoV-2 infection leads to cardiac pericyte loss, fibrosis, cardiomyocyte hypertrophy, and diastolic dysfunction
Authors: Daems Margo , Liesenborghs Laurens , Cuijpers Ilona , Boudewijns Robbert , Raman Jana , Simmonds Steven , Geuens Nadèche , Lox Marleen , Verhamme Peter , Linthout Sophie Van , Heymans Stephane , Tschoepe Carsten , Neyts Johan , Jones Elizabeth 
Published: November 2020

Abstract
Recovered COVID19 patients often display cardiac dysfunction, even after a relatively mild infection. Here, we present the first histological description of cardiac SARS-CoV-2 infection. Within the heart, the ACE2 receptor is mostly expressed by pericytes. Using a COVID19 hamster model, we demonstrate SARS-CoV-2 is replicating in pericytes, and reduced pericyte density is present after infection. In healthy animals, pericytes recover; however, when metabolic comorbidities are present, they fail to recover. These latter animals present with cardiac fibrosis, cardiomyocyte hypertrophy, and early signs of diastolic dysfunction, resembling HFpEF. Biopsies from recovered COVID19 patients showed similar results, with pericyte loss being present.
Excess deaths in the fragility fracture population during the first wave of the COVID-19 pandemic due to altered care pathways
Authors: Norrish Alan , Ikram Adeel , Ollivere Luke , Nightingale Jessica , Valdes Ana , Ollivere Benjamin 
Published: November 2020

Abstract
This study of fragility fracture patients demonstrated non-COVID-19 related mortality was significantly higher during the pandemic period (14.7% n=728) than in controls (10.2%; HR=1.86; 95%CI 1.41-2.45; p<0.0001 n=1014). This is associated with a significant decrease in length of stay, both for the whole group and for the hip fracture subgroup. Altered care-pathways and aggressive discharge criteria during the pandemic are likely responsible for the increase in excess deaths.
Prevalence And Risk Factors Of Internet Addiction Among Hungarian High School Teachers
Authors: Toth Gabor , Kapus Krisztian , Hesszenberger David , Pohl Marietta , Kosa Gabor , Kiss Julianna , Pusch Gabriella , Fejes Eva , Tibold Antal , Feher Gergely 
Published: November 2020

Abstract

The extensive availability of internet has led to the the recognition of problematic internet use (so called internet addiction, IA) mostly involving adolescents. There is insufficient data about the prevalence of IA in adults. Here we present a study focusing on the prevalence and risk factors of internet addiction among high school teachers.Overall 2500 paper-based questionnaires were successfully delivered and 1817 responses received (response rate of 72.7%). 1194 females (65.7%) and 623 males (34.3%) participated in our study.In a multivariate analysis including of all factors (demographic data, internet habits, comorbidity etc) age < 35 years (OR: 6.098, CI: 5.09-7.08, p<0.001), male gender (OR=5.413, CI: 4.39-6.18, p=0.002), surfing on the internet > 5 hours daily (OR 2.568, CI: 2.03-3.39, p<0.001), having no children (OR: 1.353, CI: 1.13-1.99, p=0.0248), and having secondary employment (OR=11.377, CI: 8.67-13.07, p=0.001) were significantly associated with internet addiction.This is the first study from Hungary showing the prevalence and risk factors of internet addiction among high school teachers. A small, but significant proportion suffered from IA. Our study also draws attention to the risk factors of IA such as younger age, family status and working type.
Assessing the relationship self-medication with chronic condition self-medication: analytic-descriptive study.
Authors: Varpaei Hesam Alidn , Onsori Pariya , Esmaeili Faeze , Abachi Saba , Nouroozi Pedram , Farahani Amir Mahdi , Miremami Mohammad Mahdi , Kazami Ali 
Published: November 2020

Abstract
Background: Chronic disease is a stable condition of human health that refers to the disease or its effects or the effects that occur over time. Lack of awareness in chronic patients can be challenging, as it provides the basis for self-medication. This study was performed to investigate the prevalence of self-medication in people with chronic disease and the factors affecting it.Materials and Methods: A cross-sectional study was conducted in Tehran from January to March 2020 and targeted people living in Tehran.Results: The prevalence of self-medication in healthy individuals was 64% and in chronic patients was 90%. The most important reason for self-medication in patients was having an old prescription and easy availability in healthy individuals. Analgesics and cold medications were the most commonly used. Headache, muscle aches, and runny nose were the most common symptoms / illnesses of self-medication. Self-medication was significantly associated with chronic illness, duration of disease, number of chronic disease medications, and study of medication instructions (P <0.05).Conclusion: The prevalence of self-medication among people with chronic diseases is significantly higher due to having a previous prescription or for economic reasons such as the high price of doctor visits and this is a health problem that needs to be addressed. Income, smoking, duration of chronic illness, number of medications taken by the patient and reading medication instructions (drug catalog or brochure) are some of the factors affecting self-medication. One of the simple steps for health promotion in chronic conditions is to educate chronic patients properly that might mitigate the complications of self-medication and prevent dire consequences of inappropriate medication use.
Higher serum lactate dehydrogenase level predicts poor outcome of aneurysmal subarachnoid hemorrhage after microsurgery
Authors: Zheng Shu-Fa , Wang Hao-Jie , Chen Guo-Rong , Shang-Guan Huang-Cheng , Yu Liang-Hong , Lin Yuan-Xiang , Lin Zhang-Ya , Yao Pei-Sen , Kang De-Zhi 
Published: November 2020

Abstract
We explored the clinical significance of serum LDH level in aSAH patients after microsurgical clipping in our single institution, to test the hypothesis that higher serum LDH level predicts the outcome of aSAH patients at 3 months. A total of 2054 aSAH patients were collected, and 874 patients treated by microsurgical clipping were enrolled. And the serum LDH level within 24 hours after aSAH were recorded. The median serum LDH level (U/L) in the good outcome group (180.096±50.237) was obviously lower than that in the poor outcome group (227.554±83.002)(p=0.000). The area under the receiver operating characteristic (ROC) curve was 0.702(95% confidence interval [CI], 0.650 - 0.754; p=0.000). The optimal cutoff value for serum LDH level as a predictor for 3-month poor outcome (mRS>2) was determined as 201.5U/L in the ROC curve. Our finding showed that that higher serum LDH level correlated with Hunt & Hess grade, Fisher grade and neurological functional outcome, and predicted the outcome of aSAH at 3 months, which was involved in the related mechanisms of early brain injury and showed its great clinical significance in aSAH patients.
Heterotrophic Euglenid Rhabdomonas Costata Resembles Its Phototrophic Relatives in Many Aspects of Molecular and Cell Biology
Authors: Soukal Petr , Hrdá Štěpánka , Karnkowska Anna , Milanowski Rafał , Szabová Jana , Hradilová Miluše , Strnad Hynek , Vlček Čestmír , Čepička Ivan , Hampl Vladimir 
Published: November 2020

Abstract
Euglenids represent a group of protists with diverse modes of feeding. To date, only a partial genomic sequence of Euglena gracilis and transcriptomes of several phototrophic and secondarily osmotrophic species are available, while primarily heterotrophic euglenids are seriously undersampled. In this work, we begin to fill this gap by presenting genomic and transcriptomic drafts of a primary osmotroph, Rhabdomonas costata. The current genomic assembly length of 100 Mbp is 14× smaller than that of E. gracilis. Despite being too fragmented for comprehensive gene prediction, comparison of the transcriptomic and genomic data revealed features of its introns, including several candidates for nonconventional introns. 16 % of transcripts bear a recognizable partial splice leader sequence. A set of 39,585 putative R. costata proteins were predicted from the transcriptome. Annotation of the mitochondrial core metabolism provides the first data on the facultatively anaerobic mitochondrion of R. costata, which in most respects resembles the mitochondrion of E. gracilis with certain level of streamlining. R. costata synthesises heme by a mitochondrial-cytoplasmatic C4 pathway with enzymes orthologous to those found in E. gracilis. The low percentage of green algae-affiliated genes, supports the ancestrally osmotrophic status of this species.
Synthetic Observational Health Data with GANs: from slow adoption to a boom in medical research and ultimately digital twins?
Authors: Geogres-Filteau Jeremy , Cirillo Elisa 
Published: November 2020

Abstract
After being collected for patient care, Observational Health Data (OHD) can further benefit patient well-being by sustaining the development of health informatics and medical research. Vast potential is unexploited because of the fiercely private nature of patient-related data and regulations to protect it. Generative Adversarial Networks (GANs) have recently emerged as a groundbreaking way to learn generative models that produce realistic synthetic data. They have revolutionized practices in multiple domains such as self-driving cars, fraud detection, digital twin simulations in industrial sectors, and medical imaging. The digital twin concept could readily apply to modelling and quantifying disease progression. In addition, GANs posses many capabilities relevant to common problems in healthcare: lack of data, class imbalance, rare diseases, and preserving privacy. Unlocking open access to privacy-preserving OHD could be transformative for scientific research. In the midst of COVID-19, the healthcare system is facing unprecedented challenges, many of which of are data related for the reasons stated above. Considering these facts, publications concerning GAN applied to OHD seemed to be severely lacking. To uncover the reasons for this slow adoption, we broadly reviewed the published literature on the subject. Our findings show that the properties of OHD were initially challenging for the existing GAN algorithms (unlike medical imaging, for which state-of-the-art model were directly transferable) and the evaluation synthetic data lacked clear metrics. We find more publications on the subject than expected, starting slowly in 2017, and since then at an increasing rate. The difficulties of OHD remain, and we discuss issues relating to evaluation, consistency, benchmarking, data modelling, and reproducibility.