bluuebunny/crossref_metadata_2025_split huggingface dataset:
revisão Kuhniana na imagem da ciência
Authors: Silva Rafael Cordeiro 
Published: November 2022

Resumo: O artigo tem a intenção de explicitar o alcance e o significado da revisão que Thomas Kuhn faz da ciência, a partir da exposição de suas ideias e do debate com o pensamento de Karl Popper. Explicita-se, também, as inovações representadas pela posição kuhniana em face da popperiana, pois a primeira é construída a partir de bases histórico-sociológicas.
Palavras-chaves: Filosofia da Ciência; Teoria do Conhecimento; Revolução Científica.

Abstract: L'article a l'intention d'expliciter la portée et la signification de la revision que Thomas Kuhn fait de la science, à partir de l' exposition de ses idées et du débat avec la pensée de Karl Popper. On explicite aussi les inovations presentées par la position de Kuhn face à la de Popper, car la premiêre est construite a partir de bases historico-sociologiques.
Cambios sensoriales, químicos y microbiológicos durante el almacenamiento de manto de calamar gigante (Dosidicus gigas) a 0 y 5°C
Authors: Pariona-Velarde Daniel , Barriga-Sánchez Maritza 
Published: November 2022

El objetivo del estudio fue evaluar los cambios sensoriales, químicos y microbiológicos en manto de calamar gigante (Dosidicus gigas) con piel (CP) y sin piel (SP) almacenados en hielo (0 ± 1 ºC) por 19 días y en refrigeración (5 ± 1 ºC) por 8 días. La evaluación química se realizó mediante el análisis de nitrógeno de trimetilamina (N-TMA), nitrógeno de bases volátiles (N-BVT), relación de hipoxantina/adenosina monofosfato (Hx/AMP), pH, aminas biogénicas, y la evaluación microbiológica mediante el recuento de bacterias mesófilas, psicrófilas y enterobacterias. Las características sensoriales evaluadas fueron olor (crudo y cocido), sabor, textura y aceptabilidad general. Se utilizó el Análisis de Componentes Principales (ACP) y la Correlación de Pearson (p<0.05) para encontrar la asociación entre el deterioro sensorial y los análisis químicos o microbiológicos. Se concluye que los análisis Log(Put+Cad+Hist), Log (Psicrófilos) y Log. (Mesófilos) serían los adecuados para describir los cambios en el manto de calamar gigante almacenados a 0 y 5 °C.
Operation variables in transesterification of vegetable oil: an enzymatic catalysis review
Authors: Rojas González Andrés Felipe , Girón Gallego Erika , Torres Castañeda Harlen Gerardo 
Published: November 2022

This paper presents the results of a literature review regarding how operating conditions influence vegetable oil enzymatic transesterification yield. The following parameters were studied: temperature and time reaction, alcohol:oil molar ratio, alcohol type, biocatalyst type and concentration, solvent, mixed intensity, reagent purity and free fatty acid and moisture concentration. Yields greater than 90% can be achieved in the enzymatic catalyst of vegetable oil using 35-50°C temperatures, long time reactions (7-90h) and a 3:1 alcohol:vegetable oil molar ratio; however, such values would intrinsically depend on the type of lipase and oil used. It was also found that free fatty acid and moisture concentration were parameters which did not require rigorous control due to high enzyme specificity. Lipases immobilized from Pseudomona cepacia bacteria and Rhizopus orizae fungi were most used in vegetable oil enzymatic transesterification.
Sodium aluminates obtained from the (NO3)3 • 9H2O - NaOH system using the controlled precipitation method
Authors: Ruiz Madroñero Christhy Vanessa , Rodríguez Páez Jorge Enrique 
Published: November 2022

Sodium aluminate, NaAlO2• xH2O, is an important commercial chemical used in water treatment, as a source of aluminium in the preparation of zeolites and other catalytic materials and as an additive in paper manufacturing. Sodium aluminates were synthesised in this work by using the Al(NO3)3 • 9H2O- NaOH system's controlled precipitation method. Using the controlled precipitation method enabled identifying the process's different stages from potentiometric titration of Al(NO3)3 • 9H2O dissolved in water and using NaOH as precipitating agent to ensure control and reproducibility and also identify final product characteristics. Powders were characterised by infrared spectroscopy (FTIR), X-ray diffraction (XRD) and gravimetric and differential thermal analysis (GDTA). The results indicated that NaAlO2 crystallised well at 1,000°C (obtained as the main crystalline sodium aluminate phase) and that β-alumina treatment began to form at 1,500°C.
The feasibility of daily, weekly and ten-day water-level forecasting in Colombia
Authors: Domínguez Calle Efraín Antonio , Angarita Héctor , Rivera Hebert 
Published: November 2022

This paper analyses the feasibility of forecasting daily, weekly and ten-day water-levels at 20 hydrological stations forming part of the monitoring network supporting the Institute of Hydrology, Meteorology and Environmental Studies' (IDEAM) Alert Service in Colombia (http://www.ideam.gov.co). Such viability was determined by a set of orthogonal performance criteria and implementing optimally adaptive linear combinations (OALC) was recommended for this study as a viable operator for configuring a real-time hydrological forecast system. It is shown that the forecast for daily, weekly and ten-day levels had satisfactory viability for 70% of the cases studied.
Prognostic value of the Metabolic Score for Insulin Resistance in the development of myocardial infarction in patients with coronary artery disease and obesity after coronary stenting
Authors: Svarovskaya A. V. , Arzhanik M. B. , Garganeeva A. A. 
Published: November 2022

Aim. To assess the predictive value of anthropometric indices in relation to the risk of myocardial infarction in patients with coronary artery disease (CAD) and obesity after coronary stenting.Material and methods. The study included 229 patients with class II-IV angina pectoris, hospitalized for elective percutaneous coronary intervention with stenting. The median age was 55±7,5 years. Depending on the presence of obesity according to the World Health Organization criteria (1999), patients were divided into 2 groups. Group 1 included 107 obese patients, while group 2 — 122 non-obese patients. Patients were measured waist circumference (WC) and hip circumference (HC). In addition, waist-to-hip ratio was assessed. Lipid spectrum parameters were determined (total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C). The following indices were calculated: body mass index, visceral adiposity index, Homeostasis Model Assessment of Insulin Resistance (HOMA-IR), Metabolic Score for Insulin Resistance (METS-IR), TG-glucose index, lipid accumulation product, TG/HDL-C ratio, and metabolic index.Results. In the group of patients with obesity, higher values of cholesterol (p<0,001), TG (p<0,001), LDL-C (p=0,006), and lower HDL-C (p<0,001) levels were established. Comparative analysis of metabolic indices showed that all indices significantly differed in both groups. In order to determine the critical values for quantitative predictors, ROC curves were constructed with the determination of threshold values that increase the likelihood of myocardial infarction after revascularization. It has been shown that only the METS-IR has prognostic significance. It was found that the METS-IR >48,16 is a predictor of myocardial infarction in patients with CAD and obesity (area under the ROC curve, 0,653, sensitivity — 75%, specificity — 64,39%; 95% confidence interval: 0,587-0,716; p=0,045).Conclusion. In our study, we demonstrated the significance of the novel METS-IR. We found that the value of METS-IR >48,16 is a predictor of myocardial infarction in patients with CAD and obesity after coronary revascularization (area under the ROC curve, 0,653, sensitivity — 75%, specificity — 64,39%).
Changes of creatine phosphokinase MB levels in the context of myocardial reperfusion injury
Authors: Semenyuta V. V. , Maksimov N. I. , Anisimov S. V. , Rykov V. V. , Mykolnikov A. V. , Nazarov S. B. 
Published: November 2022

In patients with initially elevated levels of creatine phosphokinase MB (CPK-MB), its increase after percutaneous coronary intervention (PCI) may be due not only to additional injury, but also to natural release during myocardial infarction. Therefore, CPK-MB should be evaluated relative to the initial values.Aim. To compare the CPK-MB dynamics after myocardial reperfusion relative to baseline values and the upper limit of normal (ULN) for the optimal approach to determining myocardial reperfusion injury in patients with acute coronary syndrome.Material and methods. A single center observational study was conducted with the participation of 90 patients hospitalized with a diagnosis of acute coronary syndrome. Patients underwent a biochemical blood test for CPK-MB twice and its dynamics was determined relative to the initial value and ULN.Results. Between the ischemia time and CPK-MB dynamics relative to the initial values, there is a moderate negative correlation. At the same time, the ratio of CPKMB after surgery to ULN is not associated with ischemia time. Analysis of covariance showed that the CPK-MB dynamics, determined relative to the initial values, is 20% dependent on the ischemia time. Individual features of coronary system anatomy, localization of the infarct-associated artery and the subsequent reperfusion procedure together explain the CPK-MB dynamics after surgery by 27%. When the ratio of CPK-MB to ULN is included in the analysis of covariance, all the above factors lose statistical significance.Conclusion. Thus, for a more accurate assessment of myocardial reperfusion injury after PCI, not the upper limit of normal should be analyzed, but the initial values of CPK-MB. In patients with the left heart dominant, as well as in the infarction localization in the system of right or left anterior descending artery, there is a slight change in the marker. On the contrary, more pronounced dynamics is observed in patients with tortuous coronary arteries and with implantation of 2 or more stents. At the same time, the assessment of CPK-MB in relation to ULN is not associated with the ischemia time and does not depend on the clinical and angiographic characteristics and tactics of the operation.
Profibrotic genetic polymorphisms as possible risk factors for the development of diastolic dysfunction in patients with epicardial adiposity
Authors: Gritsenko O. V. , Chumakova G. A. , Gruzdeva O. V. , Ponasenko A. V. , Barbarash O. L. 
Published: November 2022

Aim. To determine the associations of variable sites of fibrogenesis genes with the risk of left ventricular (LV) diastolic dysfunction (DD) in patients with epicardial adiposity (EA).Material and methods. The study included 101 men with general obesity (Altai Territory) without cardiovascular diseases, diabetes and documented LVDD, of which, after determining the epicardial fat thickness (EFT), 2 groups were formed: group 1 — with EA (EA+), EFT ≥7 mm or more (n=70); group 2 — without EA (EA-), EFT <7 mm (n=31). The control group was formed from Kemerovo region residents of the corresponding sex and age and without a history of cardiovascular diseases and general obesity. Polymorphisms of the MMP9 rs17576, TGFB1 rs1800469, MMP3 rs6796620, MMP3 rs626750, MMP1 rs514921, LOC101927143 rs4290029, TIMP2 rs2277698 genes were determined in all patients using the polymerase chain reaction. After 4,7±0,3 years, all patients with general obesity underwent repeated echocardiography to assess LVDD.Results. We found that in the group with EA for rs626750 MMP3, the carriage of the homozygous T allele is 2 times more common (recessive inheritance, p=0,0022). After 4,7±0,3 years, LVDD was registered in 18 patients in the EA+ group and in 2 patients in the EA- group. When analyzing inheritance patterns, as well as comparing genotypes in groups of patients with EA with developed LVDD (n=20) and without LVDD (n=78), we found that patients with EA and LVDD are 3,4 times more likely to be a carrier of the homozygous T allele (recessive inheritance, p=0,02) for rs1800469 TGFB1.Conclusion. In patients with EA and LVDD, the carriage of the T rs1800469 TGFB1 allele is more common, which probably contributes to cardiac fibrosis and LVDD according to a recessive inheritance.
A Novel Energy Aware Clustering Mechanism with Fuzzy Logic in MANET Environment
Authors: Prasad C.V.P.R. , Vuyyuru Veera Ankalu. , Sushma T. , Uppalapati Sri Lakshmi , Apparao G. 
Published: November 2022

A Mobile Ad Hoc Networks (MANETs) comprises of the vast range of devices such as sensors, smart phones, laptops and other mobile devices that connect with each other across wireless networks and collaborate in a dispersed fashion to offer network functions in the absence of a permanent infrastructure. The Cluster Head (CH) selection in a clustered MANET is still crucial for lowering each node's energy consumption and increasing the network's lifetime. However, in existing clustering mechanism trust of the all nodes are presumed those causes increased challenge in the MANET environment. Security is a crucial factor when constructing ad-hoc networks. In a MANET, energy consumption in route optimization is dependent on network resilience and connectivity. The primary objective of this study is to design a reliable clustering mechanism for MANETs that takes energy efficiency into account. For trusted energy-efficient CH in the nodes, a safe clustering strategy integrating energy-efficient and fuzzy logic based energy clustering is proposed to address security problems brought about by malicious nodes and to pick a trustworthy node as CH. To improve the problem findings Bat algorithm (BAT) is integrated with Particle Swarm Optimization (PSO). The PSO technique is inspired because it imitates the sociological characteristics of the flock of the birds through random population. The BAT is a metaheuristic algorithm inspired by microbat echolocation behavior that uses pulse average with global optimization of the average path in the network. Hybrid Particle Swarm Optimization (HPSO) and BAT techniques are applied to identify the best route between the source and destination. According to the simulation results, the suggested Fuzzy logic Particle Swarm Optimization BAT (FLPSO-BAT) technique has a minimum latency of 0.0019 milliseconds, with energy consumption value of 0.09 millijoules, maximal throughput of 0.76 bits per sec and detection rate of 90.5% without packet dropping attack.
Diagnostic difficulties of small intestinal neuroendocrine tumors: clinical case
Authors: Kotelnikova L. P. , Shatrova N. A. , Trukhacheva E. A. 
Published: November 2022

The objective of the study was to demonstrate the difficulties of diagnosing the neuroendocrine tumor (NET) of the small intestine at the example of a concrete clinical case. In the case presented, clinical manifestations of the disease were nonspecific and the examination began from a low-informative method multispiral computed tomography (MSCT) without a bolus contrast study that was the reason of wrong diagnosis for 7 months. The detection of the swollen lymph node in the mesentery was interpreted incorrectly; additionally, only endoscopic investigation of the stomach and large intestine was used. By means of MSCT-angiography we succeeded to diagnose not only the lymph node conglomerate in the mesentery, but to reveal a tumor sized 915 cm in the ileac wall. Laparoscopy with lymph node biopsy after its morphological study permitted to verify the diagnosis before the surgery.
To reduce the period of diagnostics of small intestinal NET, general practitioners should be informed on specific features of clinical manifestations of the disease and rational diagnostic methods. MSCT-angiography showed its efficiency in detection of small-sized small intestinal NET, and laparoscopy with biopsy of the mesentery lymph node will permit to verify the diagnosis before surgery.
Dissection of the VI cervical lymph collector for papillary thyroid cancer
Authors: Aleksandrov Yu. K. , Dyakiv A. D. 
Published: November 2022

Objective. To assess the expediency and necessity of implementing the dissection of the central cervical lymph nodes (group VI) in patients with papillary thyroid cancer.
Materials and methods. The results of preoperative examination, surgical treatment and its follow-up were evaluated in 210 patients, who along with thyreoidectomy, underwent dissection of the central cervical lymph nodes (group VI).
Results. It was established that for papillary thyroid cancer, a high frequency of cervical lymph node metastasis is typical. During the preoperative examination, (US and cytological study), metastases were detected in 23.5 % of patients, and while pathomorphological study of the removed central neck cellular tissue in 47.4 % more. Therefore, preventive dissection of the central cervical lymph nodes (VI group) is worthwhile.
Though expansion of the volume of operations in patients with papillary thyroid cancer at the expense of dissecting the central cervical lymph nodes in addition to the thyroid gland, leads to insignificant elevation of the number of complications but in the remote period (35 years), volume expansion of operations has no negative impact on the indicators of physical and psychical components of the life quality.
Conclusions. The obtained objective information regarding the presence or absence of metastatic lesion of the cervical lymph nodes permits to ground the process staging in papillary thyroid cancer and form treatment tactics.
Laser-induced thermotherapy of thyroid nodules with ablation of vessels feeding the nodule
Authors: Petrov V. G. , Sozonov A. I. , Baksheev E. G. , Ivashina E. G. , Ermakova A. A. , Ermakova P. A. 
Published: November 2022

Objective. To improve the results of treatment in patients with benign nodular pathology of the thyroid gland (TG) by means of perfecting the technique of minimally invasive treatment with a high-intensive laser under the sonographic control.
Materials and methods. An original technique of laser-induces thermotherapy (LITT) of the thyroid nodule with the ablation of the vessels, feeding the nodule was developed and introduced. The procedure was used in the treatment of 91 patients with benign nodular pathology of the thyroid gland, 116 patients underwent laser-induced thermotherapy by the standard technique (comparison group). Three months later, US was used to assess and compare the results of treatment in both groups. The results of thermometry were analyzed depending on the initial volume of the TG nodular neoplasm.
Results. A decrease in the nodules with the initial volume up to 2 cm3 in both groups was statistically significant and took place practically similarly 78.7 % in the main group and 71.7 % in the comparison group. When exposing the nodules of larger sizes, the efficiency of standard LITT method fell. In the comparison group, patients with the nodular sizes of 68 cm2 had a decrease in the volume only by 25.8 % % (from 6.74 cm3 to 5.0 cm3). When using an original method of thermoablation (TA), a decrease in the nodules of the same size was 69.3 % (from 6.98 cm3 to 2.14 cm3). The difference was statistically significant (p = 0,003) that proves the efficiency of this technique. In the subgroup with the nodules 8 cm3, a nodular volume decrease was 33.3 % (from 11.05 to 7.36 cm3) in the main group and 28.8 % (from 14.07 to 10.02 cm3) in the comparison group. The difference was not statistically significant (p = 279).
Conclusions. Laser-induces thermotherapy of the thyroid gland with the ablation of the vessel, feeding the nodule, leads to a statistically significant reduction of the benign colloid nodular neoplasms of any size. The original technique indicated higher efficiency compared with standard LITT in relation to the nodules sized from 6 to 8 cm.
Research Project "Media as a Language Enviroment for Native Speakers of the Sami Language": Experience of Development and Implementation
Authors: Бакула В.Б. , Коренева А.В. , Рычкова Т.А. 
Published: November 2022

Представлен исследовательский проект «Медиа как языковая среда для носителей саамского языка», реализованный преподавателями кафедры филологии и медиакоммуникаций Мурманского арктического государственного университета. Раскрываются цель, задачи и основные направления проекта, ориентированного на поддержку и популяризацию языка саами – одного из коренных народов Арктики. Описываются содержание и результаты устного опроса саамов, в ходе которого было уточнено количество носителей саамского языка, определен уровень его востребованности носителями в повседневной жизни, охарактеризовано его место в системе ценностей респондентов. Выявлена степень поддержки в изучении языка со стороны саамской общественности и языкового сообщества. Сделан вывод о целесообразности создания языковой медиасреды для ревитализации саамского языка.
The research project «Media as a language environment for native speakers of the Sami language», implemented by teachers of the Department of Philology and Media Communications of the Murmansk Arctic State University, is presented. The purpose, objectives and main directions of the project, focused on supporting and popularizing the Saami language, one of the indigenous peoples of the Arctic, are revealed. The content and results of an oral survey of the Saami are described, during which the number of speakers of the Saami language was specifi ed, the level of demand for it by speakers in everyday life was determined, and its place in the system of values of the respondents was characterized. The degree of support in learning the language from the Sami public and the language community was revealed. The conclusion is made about the expediency of creating a language media environment for the revitalization of the Sami language.
Synergetic and Heutagogical Approaches, Connectivism and Humanistic Psychology in Modern Postgraduate Education and Personality Development
Authors: Мынбаева А.К. 
Published: November 2022

В статье актуализируется проблема разработки современных основ педагогики и психологии послевузовского образования, направленных на развитие личности в течение жизни. Рассмотрены положения синергетики и эвтагогики, коннективизма и гуманистической психологии, включенные в образовательный курс «Синергетика и эвтагогика для саморазвития личности». Представлены подходы к обучению, включающие теорию и практические инструменты саморазвития личности: коучинговые технологии, сторителлинг, проективные методы.
The article actualizes the problem of developing modern foundations of pedagogy and psychology of postgraduate education aimed at the development of personality during life. The provisions of synergetics and heutagogics, connectivism and humanistic psychology included in the educational course “Synergetics and eutagogics for personal self-development” are considered. The approaches to training are presented, including theory and practical tools for personal self-development: coaching technologies, storytelling, projective methods.