bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development and experimental validation of reactor kinetic model for catalytic cracking of eugenol, a potential bio additive fuel blend
Authors: Mani Mythily , Thangavelu Thyagarajan , Perumal Santhana Krishnan , Kannan Shanthi 
Published: June 2021

Abstract
An integrated kinetic model representing catalytic cracking of eugenol in a fixed bed reactor is developed. Eugenol, a major component of clove oil can act as the most potential bio additive fuel for improving the diesel quality thereby reducing the exhaust emission of the engine. The proposed integrated model includes four lump kinetic model which is plugged with catalyst deactivation model. The reactor design parameters are also included in the integrated model. The effectiveness of the proposed integrated model is compared with the conventional kinetic models and the results are presented. The proposed integrated model is validated against the real time data obtained by conducting an experiment in a real time setup with MoS2(Ni2P) Al-SBA-15(10) as the catalyst. The advantages of the proposed integrated model are highlighted.
Developing teamwork skills in baccalaureate nursing students: impact of TeamSTEPPS® training and simulation
Authors: Greene Debbie A. , Doss Josie L. 
Published: June 2021

Abstract

Objectives
Examine the impact of TeamSTEPPS® training and simulation experiences on student knowledge and teamwork attitudes in a baccalaureate-nursing program.

Methods
This study used a quasi-experimental, pre-test, post-test design. The intervention included a workshop followed by 2 days of simulation experiences. Participants included a total of 46 nursing students. Instruments included the TeamSTEPPS learning benchmark and the Teamwork Attitudes Questionnaire (T-TAQ).

Results
Scores on the learning benchmark increased following the intervention. In addition, changes in subscores of teamwork strategies, leadership, situation monitoring, and mutual support on the T-TAQ indicate an improvement in student attitudes toward teamwork.

Conclusions
Incorporating TeamSTEPPS® strategies into undergraduate education can be effective in increasing student knowledge and improving attitudes toward interdisciplinary teamwork.
“We thought about it together and the solution came to our minds”: languaging linguistic problem-solving in multilingual Finnish classrooms
Authors: Repo Elisa , Kivimäki Riia , Kekki Niina , Alisaari Jenni 
Published: June 2021

Abstract
This study examines a learning experiment in which linguistic problem-solving tasks designed to increase students’ (aged 9–13) language awareness through collaborative dialogue were introduced in multilingual primary school classrooms in Finland. The aim was to analyse how the students (N = 126) reported what was happening during the linguistic problem-solving tasks, drawing on the method of languaging. Additionally, the study investigates how meaningful, relevant and novel the students with diverse backgrounds found the tasks. The data were collected via a survey. Students’ problem-solving reports were analysed via content analysis, with the Taxonomy of Cognitive Process applied. Statistical analysis was used to measure the experienced meaningfulness, relevance and novelty. The analysis resulted in an understanding of the multiple voices in which the students articulated their thinking regarding linguistic problem-solving. The study sheds light on how to develop language aware learning materials to engage all students, regardless of their backgrounds, in discussions on language.
Intermittent exposure to green and white light-at-night activates hepatic glycogenolytic and gluconeogenetic activities in male Wistar rats
Authors: Ige Abayomi O. , Adekanye Olubori S. , Adewoye Elsie O. 
Published: June 2021

Abstract

Objectives
Exposure to light-at-night (LAN) has been reported to impair blood glucose regulation. The liver modulates blood glucose through mechanisms influenced by several factors that include peroxisome proliferator-activated receptor gamma coactivator-1alpha (PGC-1α) and glucose-6-phosphatase (G6Pase). This study investigated the effect of intermittent exposure to green and white LAN on some hepatic glucose regulatory factors in male Wistar rats.

Methods
Animals were divided into three equal groups. Group I (control) was exposed to normal housing conditions. Groups II and III were each daily exposed to either green or white LAN for 2 h (7–9 pm) for 14 days. Body weight and blood glucose was monitored on days 0, 7, and 14. Thereafter, retro-orbital sinus blood was obtained after light thiopental anaesthesia and serum insulin was determined. Liver samples were also obtained and evaluated for glycogen, PGC-1α, and G6Pase activity. Insulin resistance was estimated using the HOMA-IR equation.

Results
Body weight and blood glucose on days 7 and 14 increased in groups II and III compared to control. Hepatic PGC-1α and G6Pase increased in group II (2.33 ± 0.31; 2.07 ± 0.22) and III (2.31 ± 0.20; 0.98 ± 0.23) compared to control (1.73 ± 0.21; 0.47 ± 0.11). Hepatic glycogen was 71.8 and 82.4% reduced in groups II and III compared to control. Insulin in group II increased (63.6%) whiles group III values reduced (27.3%) compared to control. Insulin resistance increased in group II (0.29 ± 0.09) compared to control (0.12 ± 0.03) and group III (0.11 ± 0.03), respectively.

Conclusions
Exposure to 2 h green and white LAN in the early dark phase increases hepatic glycogenolysis and gluconeogenetic activities resulting in increased blood glucose. In male Wistar rats, exposure to green but not white LAN may predispose to insulin resistance.
High serum neurotensin level in obese adolescents is not associated with metabolic parameters, hyperphagia or food preference
Authors: Cingöz Gülten , Özyurt Gonca , Uzun Hamide , Doruk Özlem Gürsoy , Küme Tuncay , Dündar Bumin Nuri , Çatlı Gönül 
Published: June 2021

Abstract

Objectives
Obesity is often the result of a high-calorie and unbalanced diet for a long time and can sometimes be associated with hyperphagia and eating disorders. Neurotensin (NT) is an anorexigenic peptide, which is secreted from the central nervous system and intestines, and increases intestinal fat absorption. In the literature, conflicting results regarding serum NT level in obesity and the relation of NT with metabolic parameters were reported. Besides, there is no data regarding the relation of NT with eating disorders or food preference in obese individuals. We aimed to evaluate the relation of serum NT level with metabolic parameters, hyperphagia, binge eating disorder (BED) and food preference in obese adolescents.

Methods
The study included 65 obese adolescents and 65 healthy controls. Anthropometric measurements, biochemical analyzes and body fat analyzes were performed in all cases. Hyperphagia score, presence of BED and three-day food intake records were also evaluated.

Results
NT level was significantly higher in obese adolescents than in controls and it was not associated with metabolic parameters, hyperphagia or food preference. In the obese group, NT level was not significantly different according to the presence of BED.

Conclusions
Serum NT level is high in obese adolescents; however, it is not associated with metabolic parameters, hyperphagia, BED or food preference.
Hereditary hypophosphatemic rickets and craniosynostosis
Authors: Arenas María Alejandra , Jaimovich Sebastián , Perez Garrido Natalia , del Pino Mariana , Viterbo Gisela , Marino Roxana , Fano Virginia 
Published: June 2021

AbstractBackgroundCraniosynostosis is an underdiagnosed complication associated with hypophosphatemic rickets. The study aims to describe the clinical and auxological characteristic of children with hypophosphatemic rickets and craniosynostosis, describe the usual treatment, and compare the characteristics with those of children without craniosynostosis.Methods and patientsAn observational and retrospective cohort study was conducted. Clinical notes and cranial images were reviewed. Out of 96 children, only the 50 patients who had skull images were included.ResultsOut of 50 patients, 26 (15 males) had craniosynostosis (52%). No differences were observed in birth size, age, height, body proportions, alkaline phosphatase, serum phosphate, or percent tubular reabsorption of phosphate at first appointment among children with or without craniosynostosis. Among patients with craniosynostosis, dolichocephaly was prevalent. The sagittal suture was affected in all patients with craniosynostosis, with 19 of 26 children (73%) affected with isolated scaphocephaly. Pan-sutural craniosynostosis was present in 7 children (27%). None of the children had microcephaly, 7 of them presented macrocephaly and, in the remaining subjects, head circumference was normal. Five patients had undergone at least 1 cranial remodeling surgery. One patient with craniosynostosis was diagnosed with a Chiari I malformation. Molecular characterization of PHEX gene was performed in 14 cases.ConclusionsCraniosynostosis is an underdiagnosed complication of hypophosphatemic rickets. Many patients with normal head size and growth may go undiagnosed, thus it is important to consider this association for early diagnosis and possible surgical treatment. A multidisciplinary approach is necessary for a correct long-term follow-up.
Why They Know Not What They Do: A Social Constructionist Approach to the Explanatory Problem of False Consciousness
Authors: Wilson Lee 
Published: June 2021

AbstractFalse consciousness requires a general explanation for why, and how, oppressed individuals believe propositions against, as opposed to aligned with, their own well-being in virtue of their oppressed status. This involves four explanatory desiderata: belief acquisition, content prevalence, limitation, and systematicity. A social constructionist approach satisfies these by understanding the concept of false consciousness as regulating social research rather than as determining the exact mechanisms for all instances: the concept attunes us to a complex of mechanisms conducing oppressed individuals to mistake social understandings of themselves as natural self-understandings—the limits lie where these overlap, or are entirely absent.
Development and usage of the digital SAMG system
Authors: Chen Y. , Wang M. , He C. , Li L. , Yang W. 
Published: June 2021

Abstract
In order to reduce the work burden during the training and drilling of the severe accident and severe accident management guidelines, and improve the implementation efficiency of the guidelines, a method of digitizing the SAMG program files is proposed. A set of digital SAMG system supported by information technology and combined with software and hardware is developed to transform the manual processes of paper file browsing, data searching, logical judgment and auxiliary calculation into automatic and digital processes, which can be used for SAMG training and drilling, and also for verifying the SAMG execution process and the effectiveness of mitigation measures.
Crystal structure of 4-(2,2-difluoroethyl)-2,4-dimethyl-6-(trifluoromethyl)isoquinoline-1,3(2H,4H)-dione, C14H12F5NO2
Authors: Liu Jianlian , Du Chaojun , Hao Hong 
Published: June 2021

Abstract
C14H12F5NO2, monoclinic, P21/c (no. 14), a = 11.8292(10) Å, b = 11.0987(8) Å, c = 11.6480(10) Å, β = 115.282(11)°, V = 1382.8(2) Å3, Z = 4, R

gt
(F) = 0.0913, wR

ref
(F
2) = 0.1609, T = 293(2) K.
Optimization of Metallographic Sample Preparation for AFM/SKPFM Based Phase Distinction of Complex and Dual Phase High Strength Steels
Authors: Traxler I. , Schimo-Aichhorn G. , Muhr A. , Commenda C. , Jerrar A. , Sagl R. , Mraczek K. , Rudomilova D. , Luckeneder G. , Duchaczek H. , Stellnberger K.-H. , Prošek T. , Hassel A. W. , Hild S. 
Published: June 2021

Abstract
For the comprehensive investigation of advanced high strength steel grades, like complex and dual phase steels, Atomic Force Microscopy (AFM) and Scanning Kelvin Probe Force Microscopy (SKPFM) have proven to be useful tools, especially for analysis of hydrogen permeability of the individual steel phases. However, for these studies a preparation route, exposing the microstructure of the steel, is necessary. Various sample preparation methods were examined, focusing on electropolishing and sputtering, and the selected route was optimized to guarantee reproducibility and stability of the prepared surface. Electropolishing was shown to be highly efficient to selectively reveal the individual steel phases without introducing strong topographical features disturbing the AFM measurements. A subsequent sputtering step was introduced to improve the stability and preservability of the surface up to several months. Finally, distinction of the steel phases via AFM/SKPFM, was complemented and compared with results from EBSD and XRD.
Removal of cadmium and lead from aqueous solutions using iron phosphate-modified pollen microspheres as adsorbents
Authors: Zhang Xiaoxing , Liu Hui , Yang Jin , Zhang Li , Cao Binxia , Liu Libo , Gong Weimin 
Published: June 2021

Abstract
Iron phosphate-modified pollen microspheres (pollen@FePO4) were prepared and applied as sorbents for the removal of heavy metals (Cd2+ and Pb2+) from the aqueous solution. Batch sorption studies were conducted to investigate the effects of solution pH, contact time, sorbent dosage, and metal concentration on the adsorption process. The sorption of Cd2+ and Pb2+ ions on pollen@FePO4 corresponds to the pseudo-second-order model and Langmuir isotherm, which is similar to the unmodified pollen. At pH 5.92, pollen@FePO4 offers maximum adsorption capacities of 4.623 and 61.35 mg·g−1 for Cd2+ and Pb2+, respectively. The faster sorption kinetics and higher adsorption capacities of Cd2+ and Pb2+ ions onto pollen@FePO4 than pollen indicates that it might be a promising material for the removal of heavy metal ions in aqueous solutions. The possible adsorption mechanism involves electrostatic and chemisorption for Cd2+ and mainly complexion for Pb2+.
Accuracy of the typicality approach using Chebyshev polynomials
Authors: Schlüter Henrik , Gayk Florian , Schmidt Heinz-Jürgen , Honecker Andreas , Schnack Jürgen 
Published: June 2021

Abstract
Trace estimators allow us to approximate thermodynamic equilibrium observables with astonishing accuracy. A prominent representative is the finite-temperature Lanczos method (FTLM) which relies on a Krylov space expansion of the exponential describing the Boltzmann weights. Here we report investigations of an alternative approach which employs Chebyshev polynomials. This method turns out to be also very accurate in general, but shows systematic inaccuracies at low temperatures that can be traced back to an improper behavior of the approximated density of states with and without smoothing kernel. Applications to archetypical quantum spin systems are discussed as examples.
Reliability-Based Design Optimization of Chemically Stabilized Coal Gangue
Authors: Ashfaq Mohammed , Moghal Arif Ali Baig , Munwar Basha B. 
Published: June 2021

Abstract
The coal gangue (CG) is a noncombustible waste mechanically separated from coal during the sorting or coal washing phase of mining. Because of the negative implications of unscientific disposal of CG, there is a need to utilize it in bulk civil engineering works. More precisely, the application of CG in earthworks facilitates its bulk application. The present study aims to evaluate the unconfined compressive strength (UCS) characteristics of lime- and gypsum-treated CG. The lime and gypsum dosages were varied from 2 to 6 % and 0.5 to 1.5 %, respectively. The influence of lime and gypsum addition on the UCS was evaluated for varying curing periods (CPs) of 7, 14, and 28 days. An exponential model is developed to evaluate UCS based on the experimental data using lime content, gypsum content, and CP. Further, attempts were made to estimate the optimum amounts of lime and gypsum content for satisfactory UCS performance of stabilized CG using target reliability-based design optimization (TRBDO). Furthermore, carbon footprint analysis (CFA) was performed to quantify the environmental benefits attainable by applying CG as subbase material in the pavement. The results showed that the maximum dry density increased from 1.74 to 1.84 g/cc for 4 % lime addition. The UCS of CG linearly increased with an increase in lime dosage, gypsum dosage, and CP. The highest increment of 1,050 % was attained for 1.5 % gypsum and 6 % lime addition. The CFA results indicate that CG’s procurement (embodied) emissions are substantially higher, with an 88 % share in overall emissions. From the reliability studies, it is noted that the TRBDO is helpful in predicting the optimum dosages of lime and gypsum for the satisfactory performance of pavements.
Adaptive backstepping control design for ball and beam system
Authors: Al-Dujaili Ayad Q. , Humaidi Amjad J. , Pereira Daniel Augusto , Ibraheem Ibraheem Kasim 
Published: June 2021

AbstractBall and Beam system is one of the most popular and important laboratory models for teaching control systems. This paper proposes a new control strategy to the position control for the ball and beam system. Firstly, a nonlinear controller is proposed based on the backstepping approach. Secondly, in order to adapt online the dynamic control law, adaptive laws are developed to estimate the uncertain parameters. The stability of the proposed adaptive backstepping controller is proved based on the Lyapunov theorem. Simulated results are presented to illustrate the performance of the proposed approach.
Challenges of Diagnosing Congenital Heart Defects — Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery
Authors: Naumenko E. I. , Grishutkina I. A. , Samoshkina E. S. 
Published: June 2021

Background. Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) also known as Bland — White — Garland syndrome is a rare congenital heart defect that affects 1 in every 300 000 newborns, thus comprising 0.22% of all congenital heart defects and 0.4–0.7% of critical congenital heart defects. In case of a more favorable disease course, symptoms typically appear between the 1st and 2nd months after birth. The ECG may show typical signs of ischemia, myocardial infarction, and left ventricular hypertrophy. The EchoCG is more informative as it enables the visualization of coronary artery orifices. Surgical correction is the only treatment method for this heart defect.Case report.Patient G.S.V., one month of age, was admitted to the neonatal pathology unit. Based on the physical examination the patient’s condition was severe. The skin was pale with cyanosis of the nasolabial triangle. The respiration rate was accelerated (50–52 breaths per minute) with the indrawing of the intercostal spaces. The displacement of the apex beat 1 cm to the left of the left midclavicular line was revealed by palpation. The displacement of the left border of the relative cardiac dullness to the anterior axillary line was revealed by percussion. Upon auscultation, the first heart sound at the heart apex was decreased, and there was a blowing systolic murmur radiating to the left anterior axillary line. Upon examination the child was diagnosed with severe acute acquired non-rheumatic diffuse viral bacterial carditis. The lack of improvement in the child’s condition following the myocarditis treatment and the examination results were suggestive of the anomalous coronary artery. The child was transferred by emergency to the Penza Federal Center of Cardiovascular Surgery where the diagnosis was confirmed.Conclusion. Despite being rare, this congenital heart defect may be diagnosed in clinical pediatric practice. A thorough record of complaints and medical history is an important step in its early diagnosis, and the presence of signs of heart failure requires additional examination. In case of suspected myocardial lesions, presence of high troponin levels and other markers of myocardial injury in the blood, ECG signs of myocardial ischemia and lack of improvement despite the treatment conducted, pathologic changes in the coronary arteries must be ruled out.
Diagnosis and treatment of heart tamponade (a literature review)
Authors: Evtushenko A. V. , Tarasov R. S. , Mamchur S. E. , Shukevich D. L. , Lebedev D. I. , Sizova I. N. 
Published: June 2021

Highlights. Current and emerging approaches in diagnosis and treatment strategies in cardiac tamponade are discussed. Particular attention is focused on the choice between pericardiocentesis or open surgical drainage as live-saving approaches to treat pericardial effusion in patients with urgent conditions.The article provides a systematic review of the literature on current and emerging approaches in the diagnosis and treatment of cardiac tamponade. We explored the decision-making process in diagnosis and treatment of pericardial decompression in pericardial effusion to provide clinicians with additional support in the assessment of high-risk patients requiring immediate intervention and those patients who should be transferred to specialized clinics and/or can be safely delayed for pericardiocentesis. The complex issues of choosing between pericardiocentesis or open surgical drainage of pericardial effusion to save the lives of patients with urgent conditions are considered. In addition, the practical aspects of manipulations and technologies for monitoring their implementation are highlighted.
Current trends in routine myocardial revascularization
Authors: Ivanov S. V. , Sumin A. N. 
Published: June 2021

Highlights. A 12-year experience of myocardial revascularization at the Research Institute of Complex Issues of Cardiovascular Diseases is reported. An increase in the number of patients with comorbidities resulted in more complex surgeries. Perioperative mortality and complication rates are consistent with the reported global data.Aim. To assess the temporal changes in baseline characteristics of patients with coronary artery disease (CAD), the range of surgical interventions, and the structure of significant in-hospital complications following coronary artery bypass grafting (CABG).Methods. 9,043 patients who underwent CABG between 2006 and 2018 were identified from a prospective CABG registry. 1,847 (20.4%) were women (the mean age of 63.11±7.4 years) and 7,196 (79.6%) were men (the mean age of 59.0±7.9 years). The main parameters on the underlying cardiovascular disease and comorbidities, the prevalence and extent of non-cardiac atherosclerosis, the type of CABG, and the volume of associated surgical interventions as well as the structure of perioperative complications were included in the statistical analysis.Results. We determined several trends characterizing the temporal changes in the clinical, morphological, and functional status of patients. The number of women undergoing CABG has increased 2.7-fold. The mean age of patients undergoing CABG has increased by 7.3 years. Patients are present with higher rates of comorbidities, including AF, diabetes (a 2.5-fold increase), hypertension (a 12% increase), as well as severe BCA stenoses (a 2.7-fold increase), a positive history of stroke, or TIA (a 2.1-fold increase). The number of combined surgical procedures during CABG has increased by 2.9. The prevalence of perioperative neurological and hemorrhagic complications requiring revision surgery, and deep wound infection have increased 4.3-fold. Waiting time for elective CABG has significantly reduced. The number of patients with a history of myocardial infarction (a 14.5% decrease) and severe peripheral artery disease has decreased. In-hospital mortality has decreased over the past decade.Conclusion. Over the past decade, the number of patients with comorbidities who require more complex surgeries has increased at the Research Institute for Complex Issues of Cardiovascular Diseases. Perioperative mortality tends to decrease. However, an increase in the number of neurological, hemorrhagic, and infectious perioperative complications requires the initiation of new preventive measures.