bluuebunny/crossref_metadata_2025_split huggingface dataset:
Coronavirus infection COVID-19 in children: a literature review
Authors: Dolgopolov I. S. , Rykov M. Yu. 
Published: May 2022

Introduction. In late 2019, a new subtype of coronavirus named severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) rapidly spread around the world, causing a global pandemic. Initially, the proportion of confirmed cases among children was relatively small, and it was believed that children were rarely infected. Subsequent observations have shown that in children and adolescents, the infection is either asymptomatic or accompanied by minimal clinical symptoms, and therefore the true incidence is under-estimated due to the low level of testing.Aim. To summarize and systematize the results of studies on the prevalence, diagnosis, clinical picture, vaccination and treatment of children with a new coronavirus infection COVID-19.Materials and methods. PubMed searched articles published up to January 15, 2022 using combinations of the following words: COVID-19, SARS-CoV-2, children, pediatrics, adolescents, infants, and school. We read the abstracts of 101 articles and selected 78 articles based on their relevance to the topics discussed. We also analyzed 3 articles on vaccination of children. A total of 89 articles were included in the review.Results. The SARS-CoV-2 positivity rate throughout the peak of the pandemic in children was low compared to adults, including those who had an acute respiratory infection. Children are not only less likely to become infected with the virus, but they also carry the infection more easily than adults. The mortality rate in children with COVID-19 was < 0.5%. In most children, infection is either asymptomatic or accompanied by an erased clinical picture. Vaccination of children and adolescents is recommended mainly to achieve herd immunity in all age groups. However, there are no convincing data on the duration of the immune response, the level of the required protective antibody titer, as well as on the long-term side effects of vaccination due to the insufficient follow-up period and the uncertainty of the immune response criteria.Conclusion. As information is accumulated on the viral load of children and adolescents, their role in the transmission of the virus, diagnostic approaches in this age group are optimized. The effectiveness of the treatment was tested on patients admitted to the hospital, and recommendations for treatment were developed. Currently, global research efforts are focused on the protection of especially vulnerable children, the prospects for total childhood vaccination, its effectiveness and safety.
Paradoxes and dilemmas of family love
Authors: Manosalva Clara Ines Carreño , Buitrago Maribel Florián 
Published: May 2022

The authors use Bordieu’s constructivist sociological perspective to question the social reproduction of the presupposition of family love in the Colombian context. They examine three of the constitutive elements that define family love: the univocal and colonial position that fuses heteronormativity and family love; the accentuated inequality between a father’s love and a mother’s love; and family love that involves possession of the children. The authors conclude by questioning their inflexible reasoning that defines family love and propose the right of mothers to legally recognize her children.
Supraspinatus Fatty Infiltration Correlation with Handgrip Strength, Shoulder Strength, and Validated Patient-Reported Outcome Measures in Patients with Rotator Cuff Tears
Authors: Mendez Greg , Manske Robert , Smith Barbara , Prohaska Daniel , Hearon Bernard 
Published: May 2022

Introduction. The purpose of this study was to investigate the relationships between supraspinatus atrophy on magnetic resonance imaging (MRI) and other objective parameters in patients with rotator cuff tears. We hypothesized that high-grade supraspinatus fatty infiltration would be negatively correlated with handgrip strength, shoulder strength and patient-reported outcome measures (PROMs).
Methods. Patients with MRI-proven rotator cuff tears treated by a single sports medicine fellowship-trained orthopaedist at a single institution underwent comprehensive preoperative evaluation including bilateral handgrip and shoulder strength measurements with dynamometers and multiple online questionnaires from the Surgical Outcomes SystemTM(Arthrex, Naples, FL). Available shoulder MRIs were reviewed to grade supraspinatus fatty infiltration severity according to the 5-tier Goutallier system and an alternate 3-tier classification scheme. Difference analysis and Spearman (rho) rank order correlation were applied to the collected data to define the relationships between supraspinatus fatty infiltration and key variables including handgrip strength, shoulder strength and scores derived from the shoulder PROMs.
Results. Ninety of the 121 patients enrolled in the study had shoulder MRIs available for review. We found no correlation between supraspinatus fatty infiltration and handgrip strength, shoulder abduction strength or any of the 7 common shoulder PROM scores we evaluated. There was statistically significant albeit weak correlation between MRI-derived fatty infiltration and shoulder external rotation strength.
Conclusions. Contrary to our hypothesis, high-grade supraspinatus fatty infiltration is largely unrelated to and should not be considered predictive of handgrip strength, shoulder strength or common shoulder PROM scores.
Application of DEA to measure the productivity of the academic staff
Authors: Endovitsky Dmitry A. , Komendenko Sergey N. 
Published: May 2022

Subject. Increasing the productivity of each academic staff member is an important condition for the achievement of high indicators by the university. The modern system of the effective contract in Russian higher education institutions provides great growth opportunities which need to be identified by analysts. Appropriate analysis methods are needed to secure a rational use of these opportunities. Objectives. Our goal was to find the best option for using the non-parametric method of Data Envelopment Analysis to solve the task related to the assessment of the productivity of each academic staff member at a middle-size university. Methodology. We used single-stage DEA models with constant and variable returns to scale, including non-discretionary outputs. The choice of a specific model was based on both quantitative and content interpretation of the obtained results. Results. It was established that R.D. Banker and R.C. Morey’s model can properly measure the productivity of academic staff and provide the university management with valuable information which can be used to efficiently manage the productivity of the employees. We identified the most probable difficulties regarding the application of similar models to a large sample of employees under real conditions. We obtained data on the productivity distribution and the dependence of productivity on occupation, which require further analysis. Conclusions. The basic single-stage DEA models are sufficient to measure the productivity of employees if non-discretionary outputs are carefully introduced and the solution's sustainability is controlled. However, the features characteristic of all DEA models cannot be ignored: they set achievable goals to improve the existing results, however they do not search new opportunities; they inform that the goals are achieved but not how significant the achieved results are for the university.
Recognizing Fake Headlines Using Clustering Algorithms
Authors: A. Mary Sowjanya Juthuka Arunadevi, 
Published: May 2022

The credibility of the news sources has hit a new low during the COVID-19. Hence, it is necessary to check for facts before trusting the news. Clustering is extremely important for analysing data, making predictions, and overcoming data abnormalities. So, in this work, the two most prominent clustering algorithms, K-Means and K-Medoids, are tested on a dataset, and K-Means outperforms k-Medoid. We now utilized supervised classification methods like Logistic Regression, K-Nearest Neighbours, and Support Vector classifier to train on the same news headlines we used for clustering with the 'Prediction' column, and then chosen the technique with the highest accuracy. The Support Vector Classifier had the maximum accuracy of 94.93 percent, according to the test. We have developed is a hybrid model consisting of an unsupervised K Means clustering algorithm and a supervised Support Vector classification algorithm. The K Means algorithm organizes the news headlines into clusters by capturing the usage of certain words and the support vector algorithm learns from those clusters to predict the categories into which the unseen news headlines belong to.
Intellective Correlates of the Proficiency Examinations of the Engineering Students
Authors: Guillermo P. Labios Jr. Leila Alagao RGC Jonathan P. Zales, Reymond S. Vasquez, Glenn G. Buenafe, 
Published: May 2022

This study determined possible intellective indicators that could influence the engineering proficiency exams. The intellective attributes of the respondents considered were type of high school graduated, SHS strand, General Weighted Average (GWA), OLSAT Scores, scholastic achievement, and course while engineering proficiency examinations was measured in terms of general education and specialized subjects.
Quantitative research design was utilized in this study. Total enumeration of the 156 freshmen engineering students were the respondents of the study. The OLSAT and the departmental made questionnaires were the main tool. Frequency counts and percentages, weighted mean, t- Test, and ANOVA were utilized.
Findings revealed that the respondents were graduates of public high schools. Their course is parallel to their SHS academic strands. They performed satisfactorily in high school and also in their freshmen scholastic achievement. Mostly wanted to become civil engineers however, they achieved low performance in their OLSAT. Respondents met the standards required by the institution as prescribed by Commission on Higher Education. The BSME students outperformed the other two engineering courses; Students who have low high school GWA and scholastic aptitude displayed higher performance in the engineering proficiency examinations; Proficiency of the students who graduated from public and private in are the same; Students from the engineering courses, and who underwent different senior high school strands displayed the same proficiency.
The intellective correlates to the proficiency exams were their GWA and Scholastic Achievement. Skills enhancement of the engineering performance to track the student’s abilities to level up achievement and the guidance office should consider bridging programs.
The 14 December 2021 Mw 4.9 Offshore Jeju Island, Korea, Earthquake: Seismological Observation of an Intraplate Earthquake Provides Insight into Regional Seismotectonics
Authors: Kim Won-Young , Park Jun Yong , Seo Min-Seong , Son Young Oh , Lim Hobin , Han Sangwoo , Kim YoungHee 
Published: May 2022

AbstractThe Mw 4.9 Offshore Jeju Island, Korea, earthquake of 14 December 2021 is the most significant event that occurred close to the young intraplate volcano on the continental shelf south of the Korean Peninsula. About 185 small earthquakes occurred during nine days following the mainshock. We accurately located 39 events despite limited station azimuthal coverage. We found that the mainshock ruptured along a ∼1.4 km long fault striking east–west (275°) and triggered two distinct clusters in the north–northeast direction. The mainshock is pure strike-slip faulting on the vertical plane. Its horizontal P axis strikes 50°, which differs substantially from the average trend of ∼70° for earthquakes in the southern Korean Peninsula. However, it is consistent with the P-axes orientation of shallow earthquakes in the offshore western Kyushu and along Okinawa trough. The 2021 Offshore Jeju Island earthquake may be the first significant earthquake in southern Korea–East China Sea continental shelf to date, whose causative fault is well constrained by accurate aftershock locations and detailed space–time analysis of the earthquake sequence. This earthquake may represent intraplate deformation in response to the tectonic evolution of the Philippine Sea plate, which is manifested through volcanic activities.
Caracterización del microbioma foliar de banano y su variación en presencia del patógeno Sigatoka Negra (Pseudocercospora fijiensis)
Authors: Paladines-Montero Alejandra , León-Reyes Antonio , Ramirez-Villacis Dario X , Zapata-Ramón Claudia G. 
Published: May 2022

Se describe el microbioma bacteriano y fúngico de la hoja de banano (Musa x paradisiaca) en estado sano y necrótico de la enfermedad Sigatoka Negra (Pseudocercospora fijiensis), evaluando manejos agronómicos orgánico y convencional en la provincia de El Oro, Ecuador. Las muestras recolectadas se sometieron a secuenciamiento de ADN y análisis en las regiones 16S (V3-V4) e ITS. Se encontró que el microbioma fúngico de las hojas de banano del cultivo orgánico disminuye su diversidad en presencia del patógeno, mientras que en el sistema convencional la diversidad aumenta. Además, se describe un ASV del género Pseudomonas sp. incrementado en la hoja sana orgánica, asociado al clado de Pseudomonas fluorescens, un microorganismo benéfico para las plantas. El microbioma endófito presente en la filósfera del banano depende del sistema de cultivo y la presencia del patógeno cambia significativamente la composición microbiana.
Palabras clave: necrótico, secuenciamiento, diversidad, ASV, filósfera
APPLICATION OF LASER DOPPLER FLOWMETRY IN THE EVALUATION OF THE EFFICIENCY OF PREOPERATIVE PREPARATION IN CHILDREN FOR REOPERATION OF A PALATE DEFECT AFTER URANOPLASTY
Authors: Kuchuk Kristina , Chuykin Sergey , AKATYEVA Galina , Chuykin Oleg , Makusheva Natal'ya , Ganieva Rimma , Petrova Ekaterina , Muratov Azamat 
Published: May 2022

Objectives. The results of the state of microcirculation in the region of the defect of the palate and periodontal mucosa after preoperative preparation in children with congenital cleft palate for the planned reoperation of the defect of the palate are presented.
Purpose. To monitor the state of microcirculation according to laser Doppler flowmetry and evaluate the effectiveness of preoperative preparation for reoperation of a palate defect in children with congenital cleft palate and a defect after uranoplasty.
Methodology. The article presents data on the state of microcirculation of periodontal tissues and in the region of the palate defect before and after preoperative preparation for reoperation of the palate defect in 109 children aged 6–12 years with congenital cleft palate and a defect after uranoplasty, which were divided into 4 groups depending on from the methodology used.
Results. Introduction into the algorithm of preoperative preparation for reoperation of a palate defect in children with congenital cleft palate and a defect after uranoplasty of alternating a course of laser therapy of the periodontal mucosa, mucous membrane in the region of the palate defect from the oral cavity and nasal cavity in combination with ultraphonophoresis with an antibacterial gel based on metronidazole and chlorhexidine, with the subsequent use of a dissociating palatal plate, has a positive effect on the state of microcirculation of periodontal and mucosal tissues in the region of the palate defect, namely, it leads to a decrease in the average perfusion index and an improvement in the intensity of blood flow.
Conclusions. After monitoring the state of microcirculation of periodontal tissues and in the region of the palate defect in children with congenital cleft palate, deviations from the norm were noted, indicating a weakening of the arteriolar vascular tone and stagnation in the venular link. The use of alternating laser therapy with a diode laser and ultraphonophoresis with an antibacterial gel made it possible to achieve an improvement in microcirculation in a short time, which is the optimal condition for reoperation.
APPLICATION OF DIODE LASER, ULTRAPHONOPHORESIS AND UNCOVERING PALATAL PLATE IN PREOPERATIVE PREPARATION FOR REOPERATION OF PALATE DEFECT IN CHILDREN AFTER URANOPLASTY
Authors: Chuykin Sergey , Kuchuk Kristina , Davletshin Nail' , Chuykin Oleg , AKATYEVA Galina , Makusheva Natal'ya , Ganieva Rimma , Sakaeva Alia 
Published: May 2022

Objectives. Analysis of oral fluid in children with congenital cleft palate and palate defect after uranoplasty.
Purpose. To analyze oral fluid in children with congenital cleft palate and palate defect after uranoplasty to determine the levels of pro-inflammatory (IL-1β, IL-6, TNF-α) and anti-inflammatory (IL-4, IL-10) cytokines and secretory immunoglobulin sIgA and evaluate physico-chemical (salivation rate, kinematic viscosity, pH) and biochemical parameters (calcium, magnesium, phosphorus, protein) of mixed saliva.
Methodology. The article presents the results of studying the parameters of the oral fluid of 109 children aged 6–12 years with congenital cleft palate and palate defect after uranoplasty and 50 practically healthy children of the same age.
Results. Hyperstimulation of pro-inflammatory (IL-1β, IL-6, TNF-α) and anti-inflammatory (IL-4, IL-10) cytokines in the oral fluid and a decrease in the average level of secretory immunoglobulin sIgA. In children with congenital cleft palate and defects remaining after uranoplasty, there was a deviation in the physicochemical and biochemical parameters of the oral fluid, which are manifested by a decrease in the rate of salivation, an increase in its viscosity and a shift in pH to the acid side. In contrast to the group of children without dental pathology, children with cleft palate and defects after uranoplasty showed a decrease in the content of total protein, phosphorus and calcium in the mixed saliva and an increase in the content of magnesium.
Conclusions. The obtained laboratory data indicate the presence of a local inflammatory process in the oral cavity and a decrease in local immunological anti-inflammatory factors. This should be taken into account for the development of methods for preoperative sanitation of the oral mucosa in children with congenital cleft palate and a palate defect after uranoplasty at the stage of preparation for reoperation.
FEATURES OF CLINICAL MANIFESTATIONS OF MAJOR DENTAL DISEASES IN PATIENTS WITH TYPE 2 DIABETES MELLITUS (LITERATURE REVIEW)
Authors: Senina Valeria , Usmanova Irina , Ishmukhametova Amina , Gerasimova Larisa , Astakhova Margarita , Kinziagulova Svetlana 
Published: May 2022

Subject. The article is a literary review devoted to the peculiarities of clinical manifestations of major dental diseases in patients with impaired carbohydrate metabolism, type 2 diabetes mellitus.
Methodology. The data of Russian and foreign literature were studied using scientific search library databases: PubMed, Elibrary, Cochrane. Literature analysis was carried out on 59 sources over the past 5 years (42 domestic authors and 17 foreign ones). The analysis of the literature data allows us to consider type 2 diabetes mellitus as highly common somatic diseases leading to the development of various symptoms, syndromes and diseases of the hard tissues of the teeth, periodontal and oral mucosa.
Results. Among the wide range of possible complications and symptoms are - impaired taste sensitivity, the presence of xerostomia, burning mouth syndrome, glossalgia, lichen planus, leukoplakia, candidiasis, chronic inflammatory diseases of periodontal tissues, complicated and uncomplicated caries of hard dental tissues. Diagnostic and therapeutic and preventive measures in this case should be aimed at their early diagnosis and prevention.
Conclusions. Against the background of manifestations of DM2, there is a significant prevalence of major dental diseases, which most often depends not only on the duration of the course and severity of DM2, but also on the state of carbohydrate metabolism compensation, age and gender. Undoubtedly, the principle of continuity of interested specialties, including dentists, endocrinologists, gastroenterologists and other specialists, has great prospects both in the diagnosis and prevention of pathology of the oral mucosa.
Study on Mechanism of Rock Burst in Horizontal Section Mining of a Steeply Inclined Extra-Thick Coal Seam
Authors: Wang Songwei , Cao Anye , Wang Zhengyi , Cao Jinrong , Liu Yaoqi , Xue Chengchun , Guo Wenhao 
Published: May 2022

Abstract
With the increase of mining depth, rock burst disasters frequently occur in steeply inclined coal seams. Firstly, this paper analyzes the rock burst of 5521-20 working face in Yaojie No. 3 coal mine and summarizes the characteristics of rock burst in horizontal section mining of steeply inclined extra-thick coal seam (SIETCS). Then, the static load distribution characteristics and the influence of dynamic load in the horizontal section mining of SIETCS are systematically studied by combining theoretical analysis with numerical simulation. On this basis, the mechanism of rock burst in horizontal section mining of SIETCS is put forward, verified by actual measurement. The results show that the SIETCS is “clamped” under the combined action of the same change trend of roof and floor. The maximum principal stress peak values on the roof and floor sides reach 22.0 MPa and 20.5 MPa. The maximum shear stress earned 8.7 MPa and 8.4 MPa, which makes the shear stress concentration in the coal body high and tends to “shear dislocation.” Under this “shear-clamping” action, an approximate “trapezoidal” plastic zone and a “rectangular” stress concentration zone are formed under the section. With the increase of mining depth, the “shear-clamping” action of SIETCS becomes more and more intense. When the roof cantilever reaches the ultimate span and breaks, the intense dynamic load increases the shear stress and failure of coal, which is easy to induce rock burst. The superimposed load greatly affects the area from the roof side to the middle of the working face, and the rock burst is intense. The rock burst is weak on the floor side due to the pressure relief of the surrounding plastic zone. The monitoring results show that the supports pressure and MS events activity on the roof side and near the middle part of the working face is considerable, while the floor side is opposite, which verifies the research results.