bluuebunny/crossref_metadata_2025 huggingface dataset:
Optical neuromorphic processing with Kerr microcombs: Scaling the network in size and speed to the PetaOp regime
Authors: Moss David
Published: January 2022

Convolutional neural networks (CNNs), inspired by biological visual cortex systems, are a powerful category of artificial neural networks that can extract the hierarchical features of raw data to greatly reduce the network parametric complexity and enhance the predicting accuracy. They are of significant interest for machine learning tasks such as computer vision, speech recognition, playing board games and medical diagnosis [1–7]. Optical neural networks offer the promise of dramatically accelerating computing speed to overcome the inherent bandwidth bottleneck of electronics. Here, we demonstrate a universal optical vector convolutional accelerator operating beyond 10 Tera-OPS (TOPS - operations per second), generating convolutions of images of 250,000 pixels with 8-bit resolution for 10 kernels simultaneously — enough for facial image recognition. We then use the same hardware to sequentially form a deep optical CNN with ten output neurons, achieving successful recognition of full 10 digits with 900 pixel handwritten digit images with 88% accuracy. Our results are based on simultaneously interleaving temporal, wavelength and spatial dimensions enabled by an integrated microcomb source. We show that this approach is scalable and trainable to much more complex networks for demanding applications such as unmanned vehicle and real-time video recognition.
Camrelizumab successfully treated a patient with hepato-pulmonary metastasis of gastric cancer: a case report and literature review
Authors: Sun Jiangang , Zhang Ming , Li Xiaojing , Chen Peng , Gao Yongshun
Published: January 2022

The application of camrelizumab in gastrointestinal tumors is in ongoing clinical trials and has shown good outcomes, which provides a new idea for the diagnosis, treatment and research of gastric cancer. A 70-year-old male patient with advanced gastric cancer developed liver and lung metastasis one year after laparoscopic-assisted radical total gastrectomy, despite postoperative trastuzumab and conventional chemotherapy. To treat this metastatic tumor, camrelizumab was started on August 8, 2019. On November 11, 2020, a CT review showed significantly reduced multiple liver metastases as well as nodules in the left upper lung. At the same time, patients had achieved free progression survival of 16 months and overall survival of more than 31 months. This case report provides a new and strong evidence for the treatment of hepato-pulmonary metastasis with camrelizumab in gastric cancer.
Weights Allocation Based on Optimal Uncertainty Evaluation
Authors: Xiaoming Ye , Shijun Ding , Haibo Liu
Published: January 2022

In the traditional measurement theory, precision is defined as the dispersion of measured value, and is used as the basis of weights calculation in the adjustment of measurement data with different qualities, which leads to the trouble that trueness is completely ignored in the weight allocation. In this paper, following the pure concepts of probability theory, the measured value (observed value) is regarded as a constant, the error as a random variable, and the variance is the dispersion of all possible values of an unknown error. Thus, a rigorous formula for weights calculation and variance propagation is derived, which solves the theoretical trouble of determining the weight values in the adjustment of multi-channel observation data with different qualities. The results show that the optimal weights are not only determined by the covariance array of observation errors, but also related to the model of adjustment.
Is serum vasohibin 1 level associated with the development of kidney disease in diabetic patients?
Authors: Sezal Didem Tutuncu , Seyithanoglu Muhammed , Sahin Murat , Ozturk Ilyas , Eren Necmi , Erken Ertugrul , Gungor Ozkan , Altunoren Orcun
Published: January 2022

Background: Glomerular filtration surface area and glomerular filtration rate (GFR) are increased in patients with diabetic nephropathy. Glomerular neoangiogenesis contributes to this increased GFR. Vasohibin-1 is an inhibitor of neoangiogenesis. The aim of this study is to evaluate serum vasohibin-1 levels of diabetic patients with and without diabetic kidney disease (DKD).Methods: One hundred and five diabetic patients and 35 healthy controls matched for age and gender were included in the study. Diabetic patients with eGFR<60 ml/min/1,73m2 and/or those who had persistent proteinuria (>200 mg/gr) measured by urine protein/creatinine ratio (UP/C) were diagnosed as DKD if they haven’t any other known kidney diseases or findings suggested another kidney disease. Serum creatinine, eGFR, UP/C and vasohibin-1 levels were recorded.Results: Thirty-four percent of diabetic patients had DKD. Systolic blood pressure and UP/C were higher in diabetic patients than healthy controls and age, sex, eGFR were similar. Diabetic patients have slightly lower but statistically non-significant serum vasohibin-1 levels than healthy controls. Patients with DKD had higher UP/C, lower eGFR and long-standing diabetes compared to diabetic patients without kidney disease. Serum vasohibin-1 levels were similar between patients with DKD and those without DKD. There was no correlation between serum vasohibin-1 levels and eGFR or UP/C.Conclusions: For the first time we showed that diabetic patients have slightly lower vasohibin-1 levels than healthy subjects but there was no difference between diabetic patients with and without kidney disease in terms of serum vasohibin levels. Because, vasohibin-1 exhibits its anti-angiogenetic properties by acting via autocrine-paracrine pathways; local vasohibin activity at the tissue level may be more important than the circulating levels.
A Hybrid Encoded and Adapted-tuned Neural Network for Asset Medical Image Watermarking Technique
Authors: hanna mina , Tayel Mazhar
Published: January 2022

Digital image watermarking techniques are used to authenticate identity of owners and copyright protection of asset images. Asset medical images (AMI) specially require extreme care when embed a watermark message because additional information should affect the AMI quality and the changes in AMI gray levels may interfere with its interpretation. This paper introduces a hybrid encoded and adapted-tuned neural network (TNN) for AMI watermarking technique to cover almost essential watermarking requirements. To attain robustness, security and invisibility, uses human visual system (HVS) and TNN to tune the AMI and to find the maximum amount of adaptive watermark message before the watermark message becomes visible. To achieve transparency, enhance AMI using histogram equalization. Embedding is performed into the middle frequency coefficients of discrete cosine transform of the AMI, to avoid visual parts in the low frequency coefficient and the noise and attacks in high frequency to improve image robustness and increase capacity comparing to spatial domain.
Effect of Inorganic Ions on the Discoloration of Rhodamine B by the Fenton Process
Authors: Ollo Kambiré , Abollé Abollé , Rodrigue Kouakou Adjoumani , Eudoxie Koffi Akissi , Sylvestre Koffi Konan , Etienne Kouadio Kouakou , Jocelin Kimou Kouakou , Souleymane Koné , Lassiné Ouattara
Published: January 2022

This study showed that the oxidation of rhodamine B by the Fenton process is a very fast method because the reaction takes place within the first 20 minutes. The mixture of Fe2+ and H2O2 produces hydroxide radicals responsible for the degradation of rhodamine B. The study of pH influence on the rhodamine B oxidation reveals that for maximum oxidation of rhodamine B, the pH must be less than or equal to 2. For pH > 2, there is a decrease in rhodamine B oxidation. This is due to side reactions that occur if the concentration of Fe2+ is high. This reduces the amount of oxidized rhodamine B. We note that the oxidation of rhodamine B is faster for low concentrations than for high concentrations of rhodamine B. According to our results, for a maximum oxidation of 5 mg / L of rhodamine, it takes 8.4.10−4 mg / L of Fe2+, 3.10−3 M of H2O2 and pH = 2. This work also showed that the presence of inorganic ions strongly slows down the rate of degradation of rhodamine in the following order: Cl− ˂ NO3− ˂ SO42− ˂ PO43−.
Prediction of the Accuracy of the Tapered Thread Profile
Authors: Panchuk V. , Onysko O. , Kotwica K. , Barz C. , Borushchak L.
Published: January 2022

The efficiency of drill string largely depends on the pipe-end connector’s accuracy named tapered thread tool joint. Most of those are made by using lathes. Turning tools were made with a profile identical to the thread profile, and all well-known world brands’ plants make the back rake angle of such a cutter with zero value. This is obviously due to the lack of a precise algorithm for calculating the cutter profile and ensuring the accuracy of the tapered thread profile. A virtual experiment was carried out of three-dimensional modeling of the process for shape creation. It showed that in the case of lathe machining of the thread of NC23 type, the deviation from the nominal half profile of the obtained thread is only 0.02°. This result prompted the decision to propose a new algorithm for predictive calculation of the half-angle of the cut profile based on the parameter associated with actual turning – the working height of the profile – h in contrast to previous scientific sources where this calculation was based on the parameter H – not truncated thread Height which is associated with the theoretical base of the accuracy of the thread. The result of the program application, created based on the algorithm proposed in the article, showed that the predicted accuracy of the obtained profile’s half-angle could be in a range from –0.03° to +0.10°, which is equivalent to 4–13 % of tolerance of this dimension.
Effects of cold extrusion on the mechanical properties of scrapped copper coil
Authors: Olawore A.S. , Oladosu K.O. , Sadiq T.O. , Ahmed M. , Adesope W.A.
Published: January 2022

The recycling of copper coil into finished products via sand casting with subsequent cold extrusion was investigated. This paper examined the effects of cold extrusion on the mechanical properties of the scrapped copper coil using a locally manufactured extruder with a conventional face die. The mechanical properties tested on the extrudates are limited to hardness, tensile, and compressive strength. The results reveal that the hardness of extruded copper of 11.10 mm and 11.45 mm improved significantly by 39 % and 41 %, respectively, compared with respective non-extruded copper. The compressive and tensile strength increases by 42 % and 22 %, respectively, for 11.10 mm extruded copper compared with the corresponding non-extruded copper. Also, the elongation of the extruded copper of 11.10 mm and 11.45 mm increases by 33 % and 34 %, respectively. It was deduced that the extruded copper is more ductile than the non-extruded copper. The micrograph reveals that grains in non-extruded copper are relatively coarse and nonuniform with voids, but fine and relatively uniform grains are obtained in extruded copper. The grains are refined during cold extrusion, and voids and dislocations are reduced significantly.
Mechanical Behaviors of Hybrid Composites Reinforced with Epoxy Resin
Authors: Harikrishna V. , Kumar K.V.
Published: January 2022

Natural fibres have emerged as a renewable and cheaper substitute to synthetic materials such as glass and carbon. A composite material can be defined as combining two or more materials that result in better properties. The constituents are reinforcement, and the other is a matrix. The main advantages of composites are high strength, stiffness combined with low density. As natural fibres are gaining more importance in recent times, many industries are focusing on these natural fibre composites, so that is why they are used as a component in composite materials. In this experiment, the analysis aims to characterize different natural fibres when combined with different ratios of the coconut coir and the bamboo. So, to fabricate the specimen, the hand lay-up method is used. The coconut coir and the bamboo composition are considered in three different variations. Then the natural fibres are subjected to resin and hardener compositions to test the suitability, tensile strength, flexural strength, and shore hardness test. We also conduct static analysis through ANSYS software.
Analysis of the Three-Dimensional Accelerating Flow in A Mixed Turbine Rotor
Authors: Chelabi M.A. , Basova Y. , Hamidou M.K. , Dobrotvorskiy S.
Published: January 2022

An investigation on new rotor blade designs conceived to produce higher exit relative kinetic energy of a mixed flow turbine is undertaken. Accelerating the flow through the rotor in a relative frame of reference improves energy transfer to the shaft, which is only produced in a rotating rotor. A three-dimensional converging rotor channel might respond to the analysis requirements in the subsonic flow regimes. Effectively, the machine experiences a 3.71 % and 3.67 % increase in work output and efficiency, respectively, representing this study’s primary intent. This has been accomplished by varying the shroud profile to a lesser eye tip diameter, then the hub profile to a larger eye root diameter. At last, both shroud and hub profiles are varied. It appears possible to enhance the performance of the rotor in terms of optimum work done and efficiency by devising suitable blade geometry designs. ANSYS CFX 15 is the code of all simulation works.
Parameter Identification of Nonlinear Bearing Stiffness for Turbopump Units of Liquid Rocket Engines Considering Initial Gaps and Axial Preloading
Authors: Verbovyi A. , Khomenko V. , Neamtu C. , Pavlenko V. , Cherednyk M. , Vashyst B. , Pavlenko I.
Published: January 2022

This article is devoted to developing a mathematical model of nonlinear bearing supports for turbopump units of liquid rocket engines considering initial gaps and axial preloading. In addition to the radial stiffness of the bearing support, this model also considers the stiffness of the bearing cage, the rotational speed of the rotor, axial preloading of the rotor (due to which the inner cage shifts relative to the outer, changing the radial stiffness of the support), as well as radial gaps between contact elements of the bearings. This model makes it possible to calculate the stiffness of the bearing supports more accurately. The proposed model is realized using both the linear regression procedure and artificial neural networks. The model’s reliability is substantiated by the relatively small discrepancy of the obtained evaluation results with the experimental data. As a result, this model will allow determining the critical frequencies of the rotor with greater accuracy. The results have been implemented within the experience of designing turbopump units for State Company “Yuzhnoye Design Office”.
Real Power Loss Reduction by Enhanced RBS Algorithm
Authors: Kanagasabai L.
Published: January 2022

In this paper enhanced red-breasted sapsucker (ERBS) algorithm has been proposed to solve the power loss lessening problem. RBS algorithm is designed on the copulate actions of RBS. Male RBS (MRBS) will attract the female with an exclusive tone. Concerning the concentration of the tone female RBS (FMBS) will progress in the direction of the MRBS. Various tone engendered by MRBS will catch the fancy of FRBS, and this action is analogous to data contribution in Evolutionary techniques. Naturally, so many MRBS will put huge efforts simultaneously to attract the FRBS for copulate. RBS has been integrated with the sine-cosine algorithm (SCA) and opposition-based learning (OBL). SCA process shifts resourcefully from exploration to exploitation by acclimatizing the functions. Solutions are frequently streamlined to the premium solution and optimization of the premium region of the exploration zone. OBL is one of the significant optimization procedures to improve the convergence pace of different optimization procedures. The successful execution of the OBL holds the assessment of the opposite population and present population in the analogous generation to find out the better contender solution. The proposed enhanced RBS (ERBS) algorithm is corroborated in IEEE 30 bus test systems. Power discrepancy compressed, power reliability amplified, and power loss condensed.
Capturing Aerosol Particles in a Device with a Regular Pulsating Nozzle
Authors: Kozii I.S. , Plyatsuk L.D. , Hurets L.L. , Volnenko A.A.
Published: January 2022

The paper is dedicated to reducing the technogenic impact on the environment of using highly efficient apparatus for the complex exhaust gas treatment, operating in the advanced turbulence regime – an apparatus with a regular pulsating nozzle (RPN). Devices with on-load tap-changers are characterized by high efficiency of capturing solid particles of different dispersion (e.g., fog, dust, and smoke), the possibility of self-cleaning of contact elements from sticky dust, low material consumption, and high reliability in operation. Purpose of the study – to obtain analytical solutions for assessing the efficiency of capturing polydisperse aerosols in an apparatus with an on-load tap-changer due to diffusion and inertial mechanisms. The paper proposes a new solution for the minimum effective diameter of aerosol particles that can be captured in devices with an on-load tap-changer and can be used for a wide range of diameters of absorbing liquid droplets and their number in the volume of the apparatus. The calculations allow us to say that the minimum effective diameter of aerosol particles captured by liquid drops in an apparatus with an on-load tap-changer is less than 0.3 microns.
Comparative Study of Rheological Properties of Polyvinyl Alcohol and Polyethylene Glycol
Authors: Javanbakht T.
Published: January 2022

Hydrogels are promising biomaterials for diverse applications that require studying their rheological properties. While some properties of hydrogels have been investigated, their comparative analysis for a deeper understanding of their rheological properties is required to determine their mechanical behavior. Polyvinyl alcohol (PVA) and polyethylene glycol (PEG) are among the hydrogels with diverse applications in engineering. This study aims to provide comparative data on their rheological properties. Both PVA and PEG showed steady shear viscosity as their viscosity did not show a huge change with time. Their shear viscosity increased with shear strain. PEG showed more shear thickening behavior than PVA. While the shear viscosity of PVA reached a plateau, that of PEG continued to increase. This was attributed to the sensitivity of PEG to its deformation because of the junction separations after the application of mechanical force on the polymer. Furthermore, the slow increase in the shear viscosity of both polymers was observed with the increase of the shear rate. This increase was 2.4 % for PVA and 8.7 % PEG, respectively. As these polymers are among the candidates for the preparation of nanocomposites, the results of this study can provide the required information for their applications in engineering.
Innovative accounting methodology of ensuring the interaction of economic and cybersecurity of enterprises
Authors: Zadorozhnyi Zenovii-Mykhaylo , Muravskyi Volodymyr , Shevchuk Oleg , Bryk Mykhailo
Published: January 2022

Implementation of computer communication technologies in social and economic processes has led to increased cyberattacks aimed to provide third parties with economic benefits or cause enterprises economic damages. The paper substantiates the impact of cyber risks on the economic security of enterprises, including the influence on the cybersecurity of accounting data as its important component. The aim of the article is to assert accounting as an innovative multilevel mechanism of ensuring the interaction of economic and cyber security. Theoretical and methodological aspects of positing accounting as a set of multi-option methods of implementing economic and cyber security interaction were investigated using institutional and innovational methods of scientific research. Economic and mathematical methods of analysis were used to substantiate the interdependence of global indices of state development.It is proven that the extent of digital competitiveness has the greatest influence on the frequency of cyber threats. At the same time, the development of information and communication technologies, innovativeness of the economy, connectivity, and Internet accessibility affect it to a lesser degree. Five levels of information interaction between economic and cyber security of enterprises are identified, viz: the methodological level: determined the impact of cyber threats on the principles and functions of accounting; the quality level: impact on the quality of accounting information; the methodical level: impact on accounting items and accounting types; the communication level: impact on accounting communication with stakeholders; the reputation level: impact on the business image and enterprise goodwill. If cyber threats are realized at these levels, this adds up to increasing economic losses for the enterprise. The paper argues for implementing a feedback mechanism for economic and cyber security conducted using accounting whose task is to credibly identify and evaluate economic losses arising due to cyber risks. It is proven that the methodology of identifying and evaluating economic losses arising in the enterprise due to cyber threats through accounting requires further scientific investigation.
Willingness to Use E-Commerce During Coronavirus Pandemic in Saudi Arabia
Authors: Albliwi Saja , Alsolami Leenah A.
Published: January 2022

The traditional retail market has been declining in recent years, while e-retailing has grown at an accelerated rate during the COVID-19 pandemic's lockdown era. The main purpose of the research is to look at the effect of the coronavirus outbreak on the shifting trends of electronic commerce (e-commerce) in Saudi Arabia. The authors investigate the impacts of factors derived by COVID-19 had on the e-commerce market. One hundred sixty individuals operating in e-commerce in the private sector in Saudi Arabia completed a self-administered questionnaire, including demographic information and three sections of five scale questions that meet the study's objectives. Most participants were males (66.2%), 56.2 % were aged between 30 and 40 years old, 38.75% had 5-10 years of experience in the private sector, 40.6% worked in companies with more than 500 employees, and 43.0% of them from lives in Riyadh. The weighted average of the 1st section is 3.19 ± 0.75, indicating that the trend of the establishment of whether lack of alternatives has a positive implication on the intent of using e-commerce during the COVID-19 pandemic is «Neutral». The weighted average of the 2nd section is 3.43 ± 1.17, which indicates the trend of determining whether the perceived ease of use has a positive implication on the adoption intent of consumers using e-commerce during a COVID-19 outbreak is «Agree». The weighted average of the 3rd section is 3.29 ± 0.90, which indicates the trend of exploring the underlying factors that leads to losses for many businesses during the crisis is «Neutral». Furthermore, the highest percentage of participants (56.2%) mentioned that their company was not prepared for another lockdown. The research results could be useful for further analysis of different domains of the e-commerce market that developed during the pandemic. They could be utilized for examining opinions about e-commerce and whether the public wanted to switch from offline to online mode of marketing.
BROOD: Bilevel and Robust Optimization and Outlier Detection for Efficient Tuning of High-Energy Physics Event Generators
Authors: Wang Wenjing , Krishnamoorthy Mohan , Muller Juliane , Mrenna Stephen , Schulz Holger , Ju Xiangyang , Leyffer Sven , Marshall Zachary
Published: January 2022

The parameters in Monte Carlo (MC) event generators are tuned on experimental measurements by evaluating the goodness of
fit between the data and the MC predictions. The relative importance of each measurement is adjusted manually in an often time-consuming, iterative process to meet different experimental needs. In this work, we introduce several optimization formulations and algorithms with new decision criteria for streamlining and automating this process. These algorithms are designed for two formulations: bilevel optimization and robust optimization. Both formulations are applied to the datasets used in the ATLAS A14 tune and to the dedicated hadronization datasets generated by the SHERPA generator, respectively. The corresponding tuned generator parameters are compared using three metrics. We compare the quality of our automatic tunes to the published ATLAS A14 tune. Moreover, we analyze the impact of a pre-processing step that excludes data that cannot be described by the physics models used in the MC event generators.
TRUMAN DOCTRINE (1946); DEFENSE PLANNING GUIDANCE (1991) & THE NATIONAL SECURITY STRATEGY (2002): THE MACKINDER & SPYKMAN DIALECTICS REVISITED
Authors: Varella Neves Andre Luiz
Published: January 2022

The aim of this article is to test the hypothesis that Halford Mackinder and Nicholas Spykman’s geopolitical theories, which sustained the grand strategy of the United States with the implementation of 1946 Truman Doctrine, are still relevant today after their termination. The results indicate that the intellectual matrixes were found in documents of the grand strategy of the United States in two moments. First, in 1992, in the George Herbert Walker Bush’s government’s Defense Planning Guidance document, formulated by the Pentagon, in February 1992. Second, they were found replicated 10 years after in the first term of President George Walker Bush, inaugurated in 2001. In the latter, the theoretical formulations repercussions were depicted in the official documents Quadrennial Defense Review (2001) and the National Security Strategy (2002). The article concluded that the authors’ ideas remain valid to explain and interpret the actions of the United States’ grand strategy in the international scenario.
Distribution pattern of enamel fluorosis severity: What is it telling us about local fluoride exposure?
Authors: Castiblanco Gina Alejandra , Silva-Hermida Blanca Cecilia , Opazo G Mario , Gonzalez-Carrera Maria Clara , Avila Viviana , Gamboa Luis Fernando , Marin Lina Maria , Usuga-Vacca Margarita , Cortes Andrea , Cortés-Muñoz Fabián , Ruiz-Carrizosa Jaime Alberto , Martignon Stefania
Published: January 2022

Introduction and objective: dental fluorosis severity reflects fluoride exposure during dental enamel development. Recently, prenatal and postnatal exposure to fluoride has been associated with negative neurodevelopmental outcomes. The aim of this study was to describe and compare the severity and distribution pattern of dental fluorosis in the primary and permanent dentition, as a basis to discuss the timing and extent of fluoride exposure of children living in endemic areas of fluorosis in the department of Huila. Materials and methods: 840 children (preschoolers and schoolchildren) from four municipalities of the Huila Department were examined by trained dentists for dental fluorosis using the Thylstrup & Fejerskov Index. To estimate the prevalence of severities of fluorosis, each child was classified according to the most severe score. The distribution of the prevalence of enamel fluorosis severity by age-group  and type of dentition were reported as prevalence rates (%). Results: Prevalence of dental fluorosis in preschoolers was of 97.2% and in schoolers of 99.9%. For both preschoolers and schoolers moderate fluorosis was the most prevalent (75.6% and 63.5%, respectively). For both primary and permanent teeth, mild fluorosis was more prevalent in anterior teeth than in posterior teeth. Moderate and severe fluorosis were more prevalent in posterior teeth than in anterior teeth. Conclusions: the distribution pattern of the severity of dental fluorosis suggests both prenatal and postnatal exposure to fluoride above recommended levels. This study raises the importance of the validation of dental fluorosis as a potential historical biomarker of fluoride exposure at moments that are critical for neurodevelopment.
Salud bucal en sujetos con trastorno del espectro autista: consideraciones para la atención odontológica
Authors: Tirado Amador Lesbia Rosa , Madera Meisser , Leal-Acosta Carlos Arturo
Published: January 2022

El estado de salud bucal y la atención odontológica en sujetos con Trastornos del Espectro Autista (TEA), amerita atención, dada las características específicas en su fisiopatología bucal y algunos factores comportamentales que influyen el progreso de enfermedades bucales como la caries dental y la enfermedad periodontal. El objetivo de la presente revisión fue describir la evidencia referente a salud bucal, así como consideraciones relevantes para la atención odontológica en sujetos con TEA. Se realizó búsqueda sistemática de la literatura empleando los buscadores de información: EBSCOhost, ScienceDirect, y Scopus. Los descriptores empleados fueron: Trastorno del Espectro Autista, Salud Bucal, Caries dental, Enfermedades Periodontales, Atención Odontológica (DeCS-Bireme), sus combinaciones y equivalencias en inglés Autism Spectrum Disorder, Oral health, Dental caries, Periodontal Diseases, Dental care (MeSH-Database). Considerando artículos publicados entre 2014 y septiembre de 2019. Inicialmente, se revisaron los títulos y aplicaron criterios de elegibilidad para la descripción de evidencia incluida, correspondiente a 46 artículos, considerando su enfoque, tipología, idioma y año de publicación y luego se plantea un análisis de la información. Concluyendo que la evidencia sigue siendo controversial y limitada con tendencia a destacar deficiencias en la higiene bucal que se realiza en los hogares de sujetos con TEA, la presencia de caries dental, enfermedad periodontal y algunos hallazgos que condicionan la fisiología oral y progreso de enfermedades bucales. Así mismo, se resalta la dificultad en la atención odontológica a causa de la cuestionable preparación del personal de odontología y los consecuentes temores en los padres que puede limitar la asistencia a la consulta de manera oportuna y en edades tempranas para lograr una buena adaptación. Por todo lo anterior, la atención odontológica se convierte en un desafío que deberá orientar sus acciones con empatía para atender esta población con participación de la familia, profesores y otros miembros de instituciones especializadas, con carácter holístico y de medicina familiar.
Toxicidades orais da terapia oncológica em crianças e adolescentes: um estudo descritivo
Authors: Daltro Borges Alves Lísia , Sampaio Cerqueira Isabela , Arsati Franco , Pinho Valente Pires Alessandra Laís , Souza Freitas Valéria
Published: January 2022

Introdução e objetivo: O câncer é a segunda maior causa de morte entre crianças e adolescentes no Brasil. Avaliar a prevalência de toxicidades orais decorrentes do tratamento oncológico em crianças e adolescentes atendidos no Hospital Estadual da Criança, no período de 2016 a 2017. Materiais e métodos: Trata-se de um estudo descritivo com dados obtidos de prontuários médicos. Foram estudadas variáveis relacionadas à neoplasia, ao portador, às toxicidades orais e ao tratamento oncológico, que foram analisadas descritivamente e o teste χ2 de Fisher foi aplicado para algumas delas. Resultados: Foram identificados 58 pacientes, com maioria do sexo feminino (53%) e idade entre 3 e 5 anos (28%), com média de 6,62 anos. A neoplasia maligna mais frequente foi a leucemia linfóide aguda (38%), sendo a quimioterapia isolada a modalidade terapêutica mais empregada (67%), especialmente com uso de citarabina (60%) e vincristina (56%). Vinte e três (40%) das crianças e adolescentes exibiram alguma toxicidade oral durante a terapia oncológica, e por esta razão, 4 (17,4%) tiveram o tratamento antineoplásico interrompido. A mucosite oral (70%) foi a toxicidade mais comum, acometendo os lábios em 55% e estando associada a dor em 64% dos casos. Dezoito (78,2%) pacientes receberam tratamento para as toxicidades orais, sendo a nistatina prescrita em 88,9% dos casos. Ademais, observou-se associação significante entre status de sobrevida e local de residência (p=0.03). Conclusões: Dentre as 58 crianças e adolescentes estudadas, 40% apresentou toxicidades orais e 4 tiveram o tratamento antineoplásico interrompido por esta razão. Desta forma, reforça-se a importância e a necessidade da atuação do cirurgião-dentista na equipe multiprofissional em oncologia.
Consideraciones diagnósticas para la exodoncia de primeros molares permanentes severamente afectados por la Hipomineralización de Molares e Incisivos
Authors: Laverde-Giraldo Melissa , Mejía-Roldán Juan Diego , Jhonson-Giraldo Natalia , Santos-Pinto Lourdes , Restrepo Restrepo Manuel
Published: January 2022

La Hipomineralización de Molares e Incisivos (HMI) es un defecto de desarrollo del esmalte de origen multifactorial que afecta de uno a cuatro primeros molares permanentes y frecuentemente está asociada con incisivos permanentes. Clínicamente se caracteriza por presentar opacidades demarcadas de color blanco-crema y/o amarillo-café. En casos severos puede haber dolor, fracturas posteruptivas, lesiones de caries dental y/o restauraciones atípicas. Entre las opciones de tratamiento se encuentran restauraciones temporales con cemento de ionómero de vidrio, restauraciones en resina compuesta, coronas, restauraciones indirectas y exodoncia. El objetivo de este caso es analizar las consideraciones diagnósticas de la exodoncia de primeros molares permanentes severamente afectados por la HMI. Paciente de sexo femenino, 9 años de edad, patrón esquelético Clase I, maloclusión Clase I bilateral e HMI severa. Para el tratamiento se optó por realizar la exodoncia de los cuatro primeros molares permanentes bajo anestesia general. Luego de 10 meses, se observa que los segundos molares permanentes están clínicamente sanos y presentan inclinaciones y posiciones favorables para el cierre espontáneo del espacio. Se concluye que la exodoncia de primeros molares permanentes severamente afectados por la HMI es una estrategia que mejora el pronóstico del paciente y para realizarla, se requiere trabajar en conjunto con el ortodoncista para diagnosticar y planear individualmente cada caso.
TO THE PROBLEM OF CREATING A MODEL OF DISCURSIVE ANALYSIS (BASED ON THE TEXTS OF GERMAN RAPPERS)
Authors:   Astrakhan State University, MASLOVA A.N. , KOSHELEVA O.N. ,   Astrakhan State University
Published: January 2022

The article attempts to highlight the main approaches to defining the concept of "discourse" in modern linguistics. It indicates the importance of discourse analysis as a method for studying the movement of information in discourse. The authors consider the currently existing discursive models and develop a model that makes it possible to analyze masculine discourse, suggesting 4 levels of its implementation. The approbation of the model is carried out on the lyrics of German rappers.
POTENTIAL TRANSLATION OPPORTUNITIES IN THE ASPECT OF COMMUNICATION THEORY
Authors:   Baku Slavic University, MUSTAFAYEVA MALAKHAT MUSTAFA
Published: January 2022

The presented article is written on a topical topic. In it, within the boundaries of the main acts of communication, emphasis is placed on some supporting factors. First of all, the two-part formula is subject to correction: translator-reader. Without in any way questioning the inviolability of this traditional formulation, the article attempts to saturate it with new content. In particular, based on the works of leading Russian and European scientists, it is shown that the translator, using different communicative capabilities, brings to the reader the meaning of the transmitted information, drawing ideas from the arsenal of several options. This is how the discussion about the variability of translation activity arises and develops, which in turn is closely related to the signification and denotation of the text. These terms are not only disclosed, but also subjected to a little critical analysis. The article is written exclusively in a theoretical way: a large place is occupied by the statements of scientists who are actively involved in the problems chosen in the article, and from various linguistic positions. Meanwhile, such an approach, in our opinion, fully justifies the goal set: to point out the broad potential possibilities of translation, using purely theoretical material for this. It includes: A) Definition of monolingual or bilingual communication as an integral part of translation; B) An indication of the equivalence, identity or difference of the language codes of the sender and the recipient of the information; C) Identification of the nature of language communication with its inherent factors; D) Definition of the role of significates and denotations. At the end of the article, the translation possibilities are subordinated to some cultural ideas.
POETRY BY S. MUSUKAEVA: MODAL SPECIFICITY (MATERIALS FOR THE BIOBIBLIOGRAPHIC DICTIONARY "KARACHAY-BALKARIAN WRITERS")
Authors:   Institute for the Humanities Research, UZDENOVA F.T.
Published: January 2022

The features of S. Musukayeva's poetry are investigated: poetics and philo-sophical-humanistic principle, apperceptive and sensitive models, emotive-modal character of a literary text. The conclusion is made about the resistance of the axiological modality in the texts of the Karachai-Balkarian authors and a tendency to increase the “meaningfulness” (M. Meerovich). In the work gnoseological and hermeneutic approaches are applied, a short literary analysis was made.
GEOECOLOGICAL ASSESSMENT OF THE CURRENT CHROMIUM CONTENT IN THE URBANIZED SOILS OF THE SOUTH OF RUSSIA
Authors:   Astrakhan State University, SINTSOV ALEXANDER V. , BARMIN ALEXANDER N. ,   Astrakhan State University, ZIMOVETS PETER A. ,   Astrakhan State University, VALOV MIKHAIL V. ,   Astrakhan State University, SINTSOVA NATALIA V. ,   Astrakhan State University
Published: January 2022

On the territory of the city, the soil cover is exposed to significant anthropogenic and technogenic impacts, which contribute to the development of a number of negative processes of soil degradation. One of these processes is the process of soil pollution with heavy metals, which have high biochemical activity and toxicity. Heavy metals are able to accumulate in the components of the environment, including in the body of living beings, having a negative effect on their condition. A great danger to humans and the environment arises when the content of pollutants belonging to the group of heavy metals exceeds the maximum permissible concentration in the soil of an urbanized area. The presence of a large number of sources of anthropogenic and technogenic impact on the environment of the urban area contributes to the development of the process of soil pollution with heavy metals. One of the main chemical elements-pollutants of urban soil belonging to the group of heavy metals is chromium (Chromium, Cr). The paper describes the results of a study conducted in 2020 on the current chromium content in the soil of the city of Astrakhan. The relevance of the work lies in the geochemical analysis of the current content of heavy metals in the soil of the city of Astrakhan. The aim of the work was to study the chromium content in the soil of the city of Astrakhan and its participation in the process of soil pollution. The work was based on the task of determining the degree of exceeding the hygienic standards of the maximum permissible concentration of chromium in soil samples. Methods of ecological and geographical research were used in the work, soil samples were collected, followed by determination in a certified laboratory of the concentration of a substance in each of the soil samples. In the course of the work, indicators of exceeding the maximum permissible concentration of chromium in the soil of Astrakhan were determined and the main sources of input into the environment were identified.
Cultura organizacional e desempenho financeiro: evidências em empresas listadas no Índice Brasil 100
Authors: Portella Ilowski Leonardo , França Lopes Iago , Lopes da Silva Vieira Cintia , De Assis Machado Danieli , Gonçalves de Matos Ruberval , Thais Krespi Musial Nayane
Published: January 2022

Objetivo: O estudo investiga a relação entre cultura organizacional e desempenho financeiro de empresas listadas no IBrX 100.

Metodologia: Analisou-se a cultura organizacional de 83 empresas por meio da análise textual, a partir das tipologias culturais desenvolvidas por Cameron et al. (2006) e os dados referentes ao desempenho foram extraídos da Thomson Reuters®.

Resultados: Os resultados da regressão linear múltipla destacam que a cultura organizacional se relaciona de diferentes formas com o desempenho financeiro. No entanto, nem todas as dimensões da cultura tiveram a mesma relação na promoção do desempenho. As dimensões de controle e a criativa tem impacto no desempenho financeiro. Já as orientações culturais voltadas para a competitividade e para colaboração não se relacionam com o desempenho. Nessa perspectiva, o desempenho financeiro incorpora dois aspectos principais da cultura organizacional: (i) a permeabilidade de elementos inovadores e de flexibilidade; e (ii) a condução de processos por meio da eficiência e controle operacional.

Contribuições do Estudo: A pesquisa oferece para sociedade um mapeamento explícito das tipificações de cultura organizacional, assim em longo prazo esse documento pode servir de informações estratégicos para as instituições sociais construírem mecanismos que maximizem a qualidade e tempestividade informacional das narrativas contábeis. Do ponto de vista teórico a pesquisa contribui para o fomento das discussões a respeito da posicionalidade das narrativas contábeis no que tange influenciar o desempenho e a cultura da companhia.
Impactos na eficiência do gasto público na educação fundamental dos municípios paulistas por meio das categorias do elemento da despesa
Authors: Santana Machado Gabriel , Crozatti Jaime , Macedo de Moraes Vinicius , De Oliveira Bianca , Eduardo de Oliveira Silva Carlos
Published: January 2022

Objetivo: este trabalho tem como objetivo mensurar os impactos dos gastos públicos na educação fundamental dos municípios paulistas sobre a eficiência do gasto público educacional.

Método: o cálculo da eficiência se dá a partir da Análise Envoltória de Dados (DEA), tendo como input os gastos públicos em educação nos anos de 2014 à 2017 e output a nota municipal da Prova Brasil 2017. A mensuração do impacto dos gastos públicos sobre a eficiência se dá a partir da técnica de Regressão Linear Múltipla (RLM) por Mínimos Quadrados Ordinários (MQO), tendo como variáveis explicativas os gastos educacionais classificados em salários, compras, viagens, juros e materiais permanentes, e variável resposta o índice de eficiência do gasto público.

Resultados: a partir dos modelos estatísticos de RLM foram obtidos diferentes coeficientes de regressão, que estimam a mudança no índice de eficiência do gasto público quando os gastos são incrementados ou retraídos. Os resultados expressam que há correlação negativa entre todas as categorias do elemento da despesa e a eficiência do respectivo gasto público educacional no período de 2014 a 2017.

Contribuições do Estudo: de forma pioneira este trabalho adota a classificação contábil orçamentária das categorias do elemento da despesa, aproximando assim o estudo da eficiência do objeto mais próximo possível a que a classificação do gasto se refere.
Análise da relação da quantidade de participantes ativos das entidades fechadas de Previdência Complementar (EFPC) com o ambiente socioeconômico
Authors: Lima Ivone Pedro de , Oliveira Elis Regina de , Santos Geovane Camilo , Santos Dryelle Laiana de Jesus Silva dos , Dihl Oliveira Elcio
Published: January 2022

Objetivo: analisar a associação entre a quantidade de participantes ativos de planos de previdência, vinculados às EFPC, e as variáveis: PIB, taxa de desocupação, inflação (INPC), taxa de juros (Selic), quantidade de EFPC e fluxo de entrada e saída de participantes ativos.

Metodologia: utilizaram-se métodos de pesquisa quantitativa, descritiva e documental. Os dados relativos à população de EFPC, no período de jul./2008 a jun. 2019, foram tratados por meio de estatísticas descritivas, testes de médias (Mann-Whitney e Kruskal-Wallis), e correlação de Spearman, com nível de significância de 5%.

Resultados: os segmentos privado, instituidor e público apresentam diferenças significativas quanto à quantidade de participantes ativos.  Observou-se associação direta entre a quantidade de participantes (setor privado) e taxa de desocupação; e inversa com a quantidade de EFPC, evidenciando redução de entidades e aumento de participantes. A quantidade de participantes (instituidor) está associada positivamente com quantidade de EFPC e taxa de desocupação, e negativamente com taxa Selic. Assim, observou-se crescimento do número de participantes ativos do setor privado e instituidor, mesmo com aumento de desemprego. No setor público, a quantidade de participantes está associada inversamente com a taxa de desocupação.  

Contribuições do Estudo: verificou-se uma lacuna teórica sobre a relação entre o ambiente socioeconômico e a quantidade de participantes ativos de planos de previdência administrados pelas EFPC. Quanto ao aspecto prático, os resultados subsidiam os gestores dessas entidades na definição de estratégias minimizadoras de riscos atuariais e financeiros, decorrentes das associações entre a quantidade de participantes ativos e alterações das taxas de desocupação e juros, aos quais os planos estão expostos.
Transparência corporativa e desempenho: qual o papel das mulheres nessa relação?
Authors: Alves de Freitas Verivaldo , Elmiro Gomes Loiola de Oliveira Messias , Trindade Medeiros Jislene , De Luca Márcia Martins Mendes
Published: January 2022

Objetivo: Esta pesquisa tem por objetivo investigar a influência da participação feminina no conselho de administração na relação entre a transparência corporativa e o desempenho de empresas brasileiras.

Metodologia: A pesquisa caracteriza-se como empírico-analítica. A amostra reúne 297 empresas não-financeiras listadas na B3 no período 2015-2019. Para atingir o objetivo da pesquisa, aplicaram-se o Teste t de Student e o Teste de Mann-Whitney e a técnica de regressão com dados em painel.

Resultados: Verificou-se a baixa participação feminina nos CAs, haja vista que apenas 6,9% dos membros desse tipo de colegiado são mulheres. A partir dos testes t de Student e de Mann-Whitney, identificou-se que no conjunto das empresas da amostra, aquelas com presença feminina no CA e aquelas contempladas com o Troféu Transparência não apresentam desempenho econômico diferente na comparação com as demais. Entretanto, ostentam maior desempenho de mercado. De acordo com os resultados das regressões, verifica-se que a transparência corporativa não influencia de forma significante o desempenho e, apesar do crescente debate na sociedade sobre a participação das mulheres em cargos de alta gestão, a participação feminina no conselho de administração das empresas estudadas não altera essa relação. Portanto, esses resultados sinalizam que a participação de mulheres em cargos da alta gestão não resulta em benefícios econômicos para as empresas.

Contribuições do Estudo: O estudo amplia o debate sobre a influência da presença feminina nos cargos de alta relevância nas grandes empresas brasileiras de capital aberto e contribuir para uma melhor compreensão da influência da participação das mulheres na relação entre a transparência corporativa e o desempenho econômico e o desempenho de mercado.