bluuebunny/crossref_metadata_2025 huggingface dataset:
Lesão queratocística em arco central mandibular. Uma região incomum
Authors: Pulino Bianca de Fátima Borim , Guerra Raphael Capelli , Collini Gabriel Cunha , Collini Guilherme Cunha , Sanches Marcelo José , Lima Marcelo Vinícius Andrade , Hochuli-Vieira Eduardo
Published: November 2021

O tumor queratocístico odontogênico (TOQ), anteriormente conhecido como queratocisto odontogênico, tem características únicas, incluindo comportamento localmente agressivo, alta taxa de recorrência e aparência histológica distinta. O TOQ é uma das neoplasias odontogênicas mais comuns da mandíbula, representando cerca de 12 e 14% de todos os quistos odontogênicos das mandíbulas. Seu comportamento apresenta potencial de destruição local e extensão em tecidos, crescimento rápido, maior taxa de recorrência e uma tendência à multiplicidade. Embora várias terapias para o TOQ tenham sido documentadas na literatura, a abordagem aceita permanece indecisa. Estas variam desde métodos conservadores, como enucleação, descompressão e marsupialização, até tratamentos agressivos que incluem ostectomia periférica, crioterapia, aplicação da solução de Carnoy e ressecção da mandíbula. Todas as técnicas têm objetivos similares: a erradicação do cisto e a redução dos riscos de recidiva e morbidade cirúrgica. Este artigo tem como objetivo relatar um caso de TOQ na região anterior da mandíbula e discutir os principais métodos de tratamento cirúrgico descritos na literatura.
AS DIMENSÕES CURRICULARES COMO MOVIMENTO FORMATIVO NO PROGRAMA RESIDÊNCIA PEDAGÓGICA
Authors: Siqueira Radetzke Franciele , Dallagnol Frison Marli
Published: November 2021

A temática central do presente artigo é a formação de professores em espaço formativo do Programa Residência Pedagógica (PRP) com enfoque na área de Ciências da Natureza e suas Tecnologias. Por meio de pesquisa bibliográfica junto ao BDTD e da Capes buscou-se compreender aspectos que se reportam para as dimensões curriculares presentes nos discursos das pesquisas realizadas.  A análise dos dados foi realizada por meio da ATD que oportunizou considerar categorias intermediárias: i) Importância de incorporar ao currículo questões do espaço escolar; ii) Construção de saberes docentes; iii) Necessidade do fortalecimento das relações entre teoria e prática; iv) Reflexão sobre as ações desenvolvidas como viés formativo, bem como categorias finais: ContextualizAção e InterAção. O processo de construção do metatexto interpõe o olhar para as dimensões curriculares como movimento reflexivo no contexto formativo do PRP potencializado pelo diálogo entre diferentes níveis de conhecimento - formação inicial, professores da educação básica e professores formadores. A reflexão é trazida como categoria formativa pela qual se desenvolvem os processos de Investigação-Formação-Ação em Ciências e sinalizam apostas para a formação de professores tanto inicial como continuada.
Li-fi: Current state, progress and forward projection
Authors: Rodríguez David , Leguizamon Paez Miguel Ángel , Tottes Geral
Published: November 2021

Problem: The increase in wireless devices connected to the internet, saturation of the electromagnetic spectrum used by wireless technologies based on current radio frequencies (Wi-Fi, Bluetooth, ZigBee, among others), new requirements for bandwidth, speeds and energy efficiency for the new generations of telecommunications are the cause of the birth of Li-Fi as an alternative and / or complementary technology of wireless telecommunication that is based on the visible light spectrum.

Objective: The objective of this research is to expose the development of Li-Fi technology in the field of telecommunications, covering it in three main aspects such as the current state of technology, recent advances, and future projections.

Methodology: Different types of bibliographic sources were used, including research and opinion articles, marketing studies, forums, books, conferences, among others with a publication date of 2012 onwards (some exceptions are found in the references); taking as selection criteria title, authors, date of publication, abstract, results and / or conclusions in relation to the research guidelines (Current Status, Advances and Future Projection of Li-Fi technology)

Conclusion: The literature review article manages to highlight the importance of Li-Fi in the new generations of telecommunications of the future and its complementarity with current networks, optimally contextualizing the technology, exposing its advantages and recent advances in technical and commercial aspects as well like its disadvantages and points. weaknesses that should be addressed in the development of this technology in the future
Towards a competitive ST system in the defense sector
Authors: Florez Jimmy
Published: November 2021

Summary: This article describes a diagnostic investigation called, sustainable military science and technology (ST) in Colombian Air Force (FAC), developed in Aerospace Technological Development Centre (CETAD) between 2019 and 2020, which seeks to identify its weaknesses and strengths to achieve a competitive and sustainable ST system according to the National Security needs that enhances national development and achieve technological sovereignty.

Problem: Is it possible to implement a sustainable and competitive ST system in the defense sector, that enhances the economic and industrial development of the country?

Objective: This research seeks to diagnose the institutional ST system, identifying weaknesses and strengths and proposing strategies to generate a sustainable and competitive ecosystem.

Methodology: A comparison was made between relevant bibliography analysis, the national context, and the result of the diagnoses of the ST system.

Results: ST system is characterized by a efforts dispersion and a disconnection with the mission objectives and its leaders, however, there is a success case that shows how with a pragmatic orientation to the mission, results can be achieved.

Conclusion: It was determined that it is possible to achieve a system that from the sector supports national development, integrating effective marketing and transfer practices and concentrating efforts on the mission.

Originality: Through this research, was possible stablish the ST state of Colombian Air Force in order integrate the system capabilities to the missional process.

Limitations: The lack of information provided by personal that conform the ST and the lack of knowledge of missionary processes.
Introduction: Victoria’s Self-Fashioning: Curating the Royal Image for Dynasty, Nation, and Empire
Authors: Hatt Michael , Marschner Joanna
Published: November 2021

This introduction sets out the structure and contents of this issue of 19: ‘Victoria’s Self-Fashioning: Curating the Royal Image for Dynasty, Nation, and Empire’.
Afterword
Authors: Munich Adrienne , Homans Margaret
Published: November 2021

This afterword reflects on this issue of 19’s accomplishments and on prior studies of Queen Victoria in local and global contexts, and suggests directions for future scholarship.
Regularities of metal flow and defects transformation during rolling in roughing stands of a universal rail and structural mill
Authors: Umanskii A. A. , Yur'ev A. B. , Dumova L. V.
Published: November 2021

Experimental studies carried out in the conditions of a laboratory rolling mill have determined the regularities of the processes of metal flow and roll-out defects of billets during deformation in roughing stands of a universal rail and structural mill. In relation to the box size and gauges types "lying trapeze" and "trapeze", we have determined a significant irregularity of drawing coefficients of the surface layers by roll length and width, as well as the irregularity of drawing in the cross-section of the roll during rolling. It is shown that during deformation the surface zones adjacent to the ends of the roll are subjected to the greatest drawing, and dependence of irregularity of the drawing coefficients over the cross-section of the roll on the shape of the deformation zone has a distinct power-law character. We have established a significant effect of the drawing coefficient, as well as the location and spatial orientation of the billet defects, while the geometric dimensions of the defects don't have such influence on their roll-out coefficients. According to the obtained data, the defects located on the rolling edges are rolled out most intensively both in depth and width, and the transverse defects are rolled out the least intensively. At the same time, the rollability of any defects increases with the growth of drawing coefficient. It is determined that near the side edges of the roll there is an increase in the width (disclosure) of transverse and inclined defects relative to the rolling axis, as well as the disclosure of defects occurs at the end sections of the roll in relation to longitudinal defects. For internal defects, it was found that, similar to surface defects, an increase in the drawing coefficient during rolling contributes to an increase in their roll-out, while the rollout coefficient of internal defects in absolute value is significantly lower than this indicator for surface defects. It was determined that the minimum roll-out coefficient of internal defects occurs when they are located in the core of the sample, while the roll-out coefficient of such defects increases linearly when moving towards the roll surface. The influence of the location, spatial orientation, and drawing coefficient on the rollability of surface and internal defects is generalized in the form of regression equations. It makes it possible to use them in practice to predict the quality of finished rolled metal when changing rolling modes.
Iron reduction from concentrates of hydrometallurgical dressing
Authors: Rybenko I. A. , Nokhrina O. I. , Rozhikhina I. D. , Golodova M. A. , Khodosov I. E.
Published: November 2021

The article presents results of theoretical and experimental studies of the processes of iron solid-phase reduction from an iron-containing concentrate obtained as a result of hydrometallurgical dressing of ferromanganese and polymetallic manganese-containing ores with coals of grades D (long-flame) and 2B (brown). The method of thermodynamic modeling using TERRA software complex was used to study the reducing properties of hydrocarbons by calculating equilibrium compositions in the temperature range of 373 - 1873 K. The authors obtained the dependences of compositions and volume of the gas phase formed as a result of the release of volatile components during heating on the temperature for the coals of the grades under consideration. As a result of thermodynamic modeling, the optimal temperatures and consumption are determined, which ensure the complete iron reduction from an iron-containing concentrate. The results of experimental studies were obtained by modern research methods using laboratory and analytical equipment, as well as methods of statistical processing. Results of the coals analysis carried out using the Setaram LabSys Evo thermal analyzer showed that the process of thermal decomposition of coals of the studied grades proceeds according to general laws. The process of thermal decomposition of long-flame coal proceeds less intensively than of brown coal. The results of an experimental study of the processes of thermal decomposition of reducing agents have shown that volumes of the gas phases, formed when coals are heated to a temperature of 1173 K in an argon atmosphere, practically coincide with the calculated values. As a result of thermodynamic modeling and experimental study, the optimal consumption of D and 2B grades of coal is determined at a temperature of 1473 K. The best reducing agent with a minimum specific consumption is long-flame coal of D grade. When determining the optimal amount of reducing agent in charge mixtures during the study of metallization processes, it was found that with an excess of reducing agent, it is possible to achieve almost complete extraction (98 - 99 %) of iron from the concentrate.
Thermodynamic analysis of strontium deoxidizing ability in liquid iron at presence of aluminum
Authors: Makrovets L. A. , Samoilova O. V. , Mikhailov G. G. , Bakin I. V.
Published: November 2021

Phase diagram of the ternary oxide system FeO - SrO -Al2O3 was constructed for the first time. In this system, the following compounds can be formed: hercynite FeAl2O4 and five strontium aluminates - Sr4Al2O7 , Sr3Al2O6 , SrAl2O4 , SrAl4O7 , SrAl12O19 . According to the calculations performed, solid solutions of oxides are not formed in the system, as it is confirmed by the literature data. In the course of modeling, the optimal energy parameters of the theory of subregular ionic solutions were selected for the components of the oxide melt (FeO, SrO, Al2O3 ). Thermodynamic analysis of strontium deoxidizing ability in liquid iron at presence of aluminum was carried out using the technique for constructing the surface of solubility of strontium and aluminum in metal for steelmaking temperatures (1550 and 1600 °C) and carbon concentrations of 0.1 and 0.4 %. The equilibrium constants of the reactions of formation of strontium aluminates Sr3Al2O6 and SrAl2O4 from the components of the metal melt were calculated for the temperature range of 1550 - 1650 °C. It was found that the rest of strontium aluminates can be formed in liquid metal only at temperatures above 1750 °C. The base of thermodynamic data for the studied systems is given: temperature dependences of equilibrium constants for reactions occurring between components; values of interaction parameters of the first order (according to Wagner) for elements in liquid iron; values of energy parameters of the theory of subregular ionic solutions (for oxide melt). It follows from the calculations that the formation of strontium monoaluminate SrAl2O4 and corundum Al2O3 is most probable as the interaction products in Fe -Al - Sr - O and Fe -Al - Sr - C - O systems.
Thermal analysis of stress-strain state of Al2O3‒SiС ceramics surface layer with AlN and TiN coatings
Authors: Kuzin V. V. , Volosova M. A. , Fedorov M. Yu.
Published: November 2021

The regularities of influence of AlN and TiN coatings on stress-strain state of Al2O3‒TiC ceramics structural elements, which forming its surface layer, under influence of heat flow are established. The formation of microstructural stress concentrators at the boundary of AlN and TiN coatings with the initial ceramics is revealed.
XVIII International conference of refractorists and metallurgists (May 20‒21, 2021)
Authors: Gavrik G. G.
Published: November 2021

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Değer İnanç Norm Teorisi Temelinde Çevresel Duyarlılık Davranışlarının Ölçümü
Authors: FARHADİ ANDARABİ Feriyal , HASSAN Azize
Published: November 2021

Uluslararası Yavaş Şehir Birliği Bilim Kurulu, iklim değişikliğine ve çevresel sorunların çözülmesine ilişkin hassasiyetini, sunduğu üyelik kriterleri kapsamında bildirmiştir. Bu doğrultuda Türkiye’nin yavaş şehirlerindeki konaklama işletmesi yöneticilerinin işyerinde çevresel duyarlılık davranışları hakkında bilgi edinmek amaçlanmıştır. Araştırma amacına ulaşılması için Değer İnanç Norm Teorisi’nden (DİN) yararlanılmıştır. Basit tesadüfî yöntemle 18 yavaş şehirdeki üst ve orta kademe yöneticilerden 265 anket toplanmıştır. Verilerin analizinde LISREL ve SPSS paket programlarından yararlanılmıştır. Doğrulayıcı faktör analizi sonuçlarına göre bu örneklemde hesaplanan uygunluk değerlerinin kabul edilebilir aralıklar içerisinde olduğu görülmüştür. Değişkenler arasında bulunan korelasyon katsayıları ve faktör maddelerinin arasında regresyon ağırlıklarının kabul edilebilir değerler kapsamında yer aldığı saptanmıştır. Araştırmanın nedensel zincirinde çevresel sorunların farkındalığıyla, atfedilen sorumlulukları üstlenmeye hazır olma arasındaki korelasyon katsayısı en düşük değeri temsil etmiştir. Çevresel norm ile çevresel duyarlılık davranışları arasında da zayıf ilişki bulunmuştur. Bireylerin proaktif çevresel duyarlılık davranışlarının motive edilmesinde sosyal psikoloji faktörlerinin dikkate alınması gerektiği, bu araştırmanın sonuçlarıyla desteklenmiştir.
Occurrence and Fate of Amoxicillin and Penicillin G Antibiotics in Hospital Wastewater Treatment Plants: A Case Study - Gonbad Kavous, Iran
Authors: Golchin Maryam , Khani Mohammadreza , Sadani Mohsen , Sadeghi Mehdi , Jahangiri-rad Mahsa
Published: November 2021

ABSTRACT Release of antibiotics to the environment as a result of wastewater effluent discharge is a cause for concern worldwide, as they pose a potential threat to human health and the earth ecosystem. Penicillin and amoxicillin are widely used antibiotics. Despite their rapid hydrolysis in aqueous matrices, their presence in the environment is widely investigated. The current study reported and analysed the current state of four hospital wastewater treatment plants (WWTPs) in Gonbad Kavous, Iran, during 2019, from the perspective of amoxicillin and penicillin G removals. WWTPs were sampled at various stages of the treatment process to determine at which stage the antibiotics are being removed. Concentrations of amoxicillin and penicillin G in raw wastewater, analysed by HPLC, varied from 0.35 to 1.02 and 0.02-0.31 /AgL-1, respectively. These values reduced in the final effluent, corresponding to overall efficiency in removing the studied antibiotics of 20-60.5%. Anaerobic processes (i.e. septic tank) slightly outperformed aerobic biological processes for both antibiotics' removal, and penicillin G was removed more efficiently than amoxicillin. Effects of wastewater physicochemical properties, including chemical oxygen demand (COD), biochemical oxygen demand (BOD), and total suspended solids (TSS) on antibiotics removal, were also studied. Whereas statistically significant correlations were noticed between COD, amoxicillin and penicillin G removals, their decline showed no correlation with TSS removal. Our study shows that despite the deployment of treatment plants, a considerable amount of antibiotics is released into receiving water bodies, resulting in significant amounts of these pharmaceuticals entering the environment. There is abundant room for further progress in the detection and quantification of pharmaceuticals and other emerging contaminants in hospital wastewaters and their metabolites and biodegradation products. Keywords: amoxicillin; penicillin G; high-performance liquid chromatography; hospital wastewater treatment plants; removal.
Selective Solid-Phase Extraction Using Molecularly Imprinted Polymers for the Analysis of Target Pesticides in Cannabis Bud
Authors: Myburgh Paul , Kemp Gerdus , Forbes Patricia
Published: November 2021

ABSTRACT A molecularly imprinted solid-phase extraction (MISPE) procedure was developed for the GC-MS analysis of four high priority pesticides (atrazine, terbuthylazine, acetochlor and alachlor) in a cannabis bud sample matrix. The study demonstrated that the synthesised polymer had a high affinity and good selectivity for either chloroacetamide or triazine classes of pesticide used as a template molecule during the molecularly imprinted polymerisation reaction. The MISPE procedure was optimised in terms of loading, washing and elution fractions utilising a range of aqueous methanol solutions for optimal recovery and minimal matrix interferences. The optimal wash fraction was 20% (v/v) methanol in an aqueous solution, whilst 70% (v/v) was used for the elution fraction. The selectivity, accuracy and recovery of the MISPEs were verified using a synthesised non-imprinted polymer and a commercial C18 cartridge as reference sorbents in comparative experiments. Approximately 3 g of the cannabis bud sample was spiked at a 0.05 mg/kg maximum residue limit (MRL) concentration. The recovery of the four selected pesticides extracted from the spiked samples ranged between 76.4-85.0% when utilising the optimised MISPE methods, compared to 91.6-96.9% for the C18 SPE. However, the use of the MISPE resulted in enhanced selectivity, as evidenced by GC-MS analysis, due to the extraction of less matrix interferences. Therefore, it can be concluded that the MISPE is a viable pre-treatment method for selective pesticide analysis in cannabis flowers using GC-MS when selectivity is valued for the extraction of target pesticides from a complex sample matrix. Keywords: molecularly imprinted polymer; solid-phase extraction; Cannabis; pesticides; atrazine; terbuthylazine; acetochlor; alachlor
Ethylene Trimerization over Supported SNS and PNP
Authors: Catalysts Chromium , Shozi Mzamo L. , Zulu Xolelwa , Friedrich Holger B.
Published: November 2021

ABSTRACT Chromium(III) complexes with sulphur, nitrogen and phosphorus tridentate ligands were synthesized and characterized. These complexes were supported on SiO2 and characterized by BET surface area measurements, XRF, SEM-EDX and FTIR. The complexes were tested for activity and selectivity in the trimerization of ethylene. The substituent's effect and influence on the sulphur on the supported catalysts were studied using the ethyl and the decyl substituted catalysts. The influence of temperature on catalytic performance was evaluated using the PPP supported system. The most active supported catalyst, the decyl substituted SNS catalyst, showed good activity of up to 19 500 g/g Cr h-1 and selectivity of 97.3 % to C6 products (98.2 % 1-hexene). This activity and selectivity were comparable to the homogeneous counterpart's performance that achieved 22 000 g/g Cr h-1 and 98.2 % C6 products (96.7 % 1-hexene), which surpassed the ethyl substituted catalyst, which was not supported, under the same reaction conditions. The supported PPP catalyst activities showed it was sensitive to higher temperatures, but this depends on the supporting technique. Keywords: Ethylene trimerization, sulfanyl ligands, phosphine ligands, supported catalysts.
An African violin – The feasibility of using indigenous wood from southern Africa as tonewood
Authors: Meincken Martina , Roux Gerhard , Niesler Thomas
Published: November 2021

The wood used to make musical instruments needs to have particular properties. Depending on its function, such as a soundboard for string instruments or the body of a wind instrument, different properties are desirable to obtain the best musical quality. Several different classification schemes exist that correlate physical and mechanical properties of wood to define desirable ranges for tonewoods, and to allow suitable wood species to be chosen. The physical and mechanical properties of various wood species indigenous to southern Africa were characterised and then assessed in terms of their suitability for violin construction using these classification schemes. The results of this analysis show that the most suitable of the wood species assessed are yellowwood and sapele. These were subsequently used by a professional luthier to build an ‘African’ violin. The sound quality of this instrument was determined subjectively through performances to an audience and more objectively via spectral analysis of audio recordings. This analysis shows clear differences in the relative magnitude of the harmonics between the violin made from indigenous wood and an instrument made with conventional wood species. Despite the differences, yellowwood and sapele were found to be suitable tonewoods, resulting in an instrument with a unique sound.Significance:

Good quality violins are always made from spruce and maple wood, which have to be imported to South Africa – often at high cost. However, the growth conditions of most southern African wood species should make them suitable tonewoods. We showed that several species are suitable to be used as tonewoods and that the sound produced with such a violin is – although somewhat different – of high quality.
Evaluation of the binding and disintegrating properties of gum obtained from the stem bark of Cinnamomum zeylanicum
Authors: Sarkodie Louisa C. , Entsie Philomena , Boakye-Gyasi Mariam E. , Owusu Frederick W.A. , Bayor Marcel T. , Ofori-Kwakye Kwabena
Published: November 2021

Excipients are the various ingredients, apart from the active pharmaceutical ingredients, which are added to pharmaceutical formulations. Excipients obtained from natural sources are preferred over those from synthetic sources because they are cheap, biocompatible and readily available. Gums are made up of carbohydrate units which are linked by glycosidic bonds. This study was aimed at evaluating the potential binding and disintegrating properties of gum obtained from the bark of Cinnamomum zeylanicum, which was obtained from Effiduase in the Ashanti region of Ghana. The gum was extracted using 96% ethanol and the moisture content, Fourier transform infrared spectroscopy spectra, water holding capacity, swelling index and flow properties of the gum were determined. The gum was used to formulate tablets at different concentrations (10% w/v, 15% w/v and 20% w/v) as binder with acacia as the standard. The gum was also used to formulate tablets at different concentrations (5% w/v, 7.5% w/v and 10% w/v) as disintegrant with starch as the standard. Quality control tests were then conducted on all formulated tablets. The gum exhibited good flow and physicochemical properties. All formulated tablets passed the uniformity of weight test, friability test, disintegration test, hardness test, uniformity of dimensions test and drug content. All batches of tablets, except Batch 7, passed the dissolution test. Based on the study carried out, C. zeylanicum gum can be used as an alternative excipient to acacia and starch as a binder and a disintegrant, respectively.

Significance:

A natural polysaccharide (gum) from the bark of Cinnamomum zeylanicum tree can be harnessed and commodified as a pharmaceutical excipient (binder and disintegrant) in the production of immediate release tablets.
Filyos Çayı Deltasında (Karadeniz) kıyı çizgisi değişiklikleri ve yakın geleceğe yönelik göstergeler
Authors: TUROGLU Hüseyin , DURAN Abdulkadir
Published: November 2021

Hisarönü (Filyos) Balıkçı Barınağı ve Filyos Limanı inşaatları sonrasında, Filyos Çayı Deltası kıyılarında;kıyı çizgisi, plaj ve artkıyı alanında zamana bağlı değişiklikler dikkat çekici olmaya başlamıştır.Bu çalışmada; Filyos Çayı Deltası kıyılarında kıyı çizgisinin zamana bağlı değişimi analiz edilerek,bu değişimlerinin miktarları, hızı, alan ve lokasyon özelliklerinin belirlenmesi amaçlanmıştır. Araştırma,Coğrafi Bilgi Sistemleri ve Uzaktan Algılama teknolojileri ile gerçekleştirilen analiz yöntemlerinedayalı olarak gerçekleştirilmiştir. Sonuçlar arazi çalışmaları ile test edilmiştir. Veri kaynağıolarak 1984-2020 yıllarına ait 5 er yıllık dönemler için Landsat uydu görüntüleri tercih edilmiştir.Kıyı çizgilerinin belirlenmesi için “Normalized Difference Water Index (NDWI)” yöntemi, kıyı çizgilerinindeğişimi, kıyı erozyonu ve birikimi analizi için ise “Digital Shoreline Analysis System (DSAS)”kullanılmıştır. Plaj ve artkıyıdaki alansal değişimleri belirlemek için ArcGıs 10.5 yazılımdaki “ImageAnalyst” uzantısında bulunan “Difference” aracından yararlanılmıştır. Analiz sonuçları, HisarönüBalıkçı Limanı’nın doğu kıyısında 36 yılda 51.70 - 259.42 metre arasında kıyı çizgisi ilerlemesinin vekum birikiminin gerçekleştiğini göstermektedir. Diğer taraftan, Filyos Limanı proje sahasında, kıyıçizgisinin -229.49 ile -366.32 metre arasında gerilediği tespit edilmiştir. Analiz sonuçları kıyı çizgisideğişimlerinin, kıyı yapılarının inşaatından sonra belirgin olarak hızlandığını göstermektedir. Kıyıçizgisi ilerlemeleri ve oluşan kum birikimlerinin gelişim hızları da dikkate alındığında, yakın gelecekte;Hisarönü Balıkçı Barınağının girişinin kapanacağı, Hisarönü Balıkçı Barınağının doğusundaki Tiosantik limanının kum birikimi altında kalacağı öngörülmektedir.
Reducing of Sterically Hindered Pyridine Substituted Para-Nitrosophenols
Authors:   Reshetnev Siberian State University of Science and Technology, Kukushkin Alexey A.
Published: November 2021

Reduction of para-nitrosopyridylphenols with hydrazine hydrate in ethanol made it possible to obtain previously unavailable per-substituted para-aminophenols with pyridine substituents. The structure of the compounds obtained for the first time was confirmed by IR, 1H NMR spectroscopy and mass spectrometry
Experimental and Mathematical Optimization of the β-Sitosterol extraction from Mechanically Activated Pine Bark
Authors:   Siberian Federal University, Ionin Vladislav A. , Kazachenko Aleksandr S. , Skripnikov Andrei M. , Veprikova Evgeniia V. , Belash Mikhail Yu. , Taran Oxana P.
Published: November 2021

The optimization of the process of β-sitosterol extraction from the original and activated with two different methods (drum mill, explosive autohydrolysis) pine bark was carried out. The effect of the duration of the extraction process and the concentration of NaOH in the saponification solution on the yield of β-sitosterol was explored. The concentration of NaOH in the saponification solution appeared to have the highest effect on the β-sitosterol yields from activated pine bark. Mechanical activation of pine bark significantly increased the yield of β-sitosterol and reduced the duration of the isolation process. The highest yield of β-sitosterol was achieved with the use of pine bark activated by explosive autohydrolysis. According to the proposed mathematical model, the maximum predicted value of the β-sitosterol yield from this sample is 0.078 (wt%). This could be achieved using the process duration 10.3 hours and a 0.5 N solution of NaOH. This yield is close to the content of β-sitosterol in the original pine bark
Machine learning based on laboratory data for disease prediction
Authors: Gusev A. V. , Novitskiy R. E. , Ivshin A. A. , Alekseev A. A.
Published: November 2021

Objective: to review domestic and foreign literature on the issue of machine learning methods applied in medical information systems (MIS), to analyze the accuracy and efficiency of the technologies under study, their advantages and disadvantages, the possibilities of implementation in clinical practice.

Material and methods. The literature search was performed in the PubMed/MEDLINE databases covering the period from 2000 to 2020 (using groups of keyphrases: "machine learning", "laboratory data", "clinical events", "prediction diseases"), CyberLeninka ("machine learning", "laboratory data", "clinical events", "prediction diseases" Russian keyphrases combinations) and Papers With Code ("clinical events", "prediction diseases", "electronic health record"). After reviewing the full text of 30 literature sources that met the selection criteria, the 19 most relevant articles were selected.

Results. An analysis of sources that describe the application of artificial intelligence techniques to obtain predictive analytics, taking into account information about patients, such as demographic, anamnestic, and laboratory data, the data of instrumental studies, information about existing and former diseases available in MIS, was performed. The existing ways of predicting adverse medical outcomes using machine learning methods were considered. Information about the significance of the used laboratory data for constructing high-precision predictive mathematical models is presented.

Conclusion. Implementation of machine learning algorithms in MIS seems to be a promising tool for effective prediction of adverse medical events for wide application in real clinical practice. It corresponds to the global trend in the development of personalized medicine based on the calculation of individual risk. There is an increase in the activity of research in the field of predicting noncommunicable diseases using artificial intelligence technologies.
Malopolska Educational Cloud: an innovative educational project for able-bodied and disabled users
Authors: Zielińska Jolanta
Published: November 2021

Introduction The article describes the design assumptions and the practical implementation of the educational project called Malopolska Educational Cloud. It is an example of an innovative solution using modern technology in the field of education. The problem and purpose of the research The implementation of the project resulted from the observation of unfavorable phenomena occurring in the area of education at the junction of upper secondary and higher schools, which were confirmed in the research described in the paper. Successively, the issues covering the project's objectives were discussed, the target group: recipients, was characterized and the project's innovation was assessed. State of knowledge Then the issue of a disabled person as a user of the Educational Cloud was presented. The assessment indicated that the project implementation allows for greater activation of people with disabilities, including thanks to the possibility of participating in virtual classes, lectures and laboratories, and thus remote learning using the created network, without the need to move. It has been shown that the project implements the principle of equal opportunities and non-discrimination, including accessibility for people with disabilities, has a positive impact on it and is made in accordance with the principle of universal design. Summary The described project consists in incorporating technology into improving the course of cognitive processes and the importance of this research for education, including increasing the effectiveness of the learning and teaching process by virtualizing education. The conclusions drawn concern the most difficult group in terms of education: disabled students as users.
Parents and school in the process of education of foster children – the division of responsibility from the perspective of parents. A research report
Authors: Bartnikowska Urszula , Ćwirynkało Katarzyna
Published: November 2021

Introduction: Children in a foster family have a difficult life situation. This is a challenge for both foster parents and teachers. Cooperation based on shared commitment and understanding gives the child a chance to gain positive life experiences. The acquired knowledge and skills can be a resource that will allow the child to change the (often negative) pattern of life of the biological family they come from. Aim of the study: The aim of the study was understanding how foster parents perceive their cooperation with the school their children attend. Method: The authors applied the interpretive paradigm, the phenomenography method in the study. To collect the data, focus interviews were conducted in three groups of foster parents. In total, 21 parents took part in the study. Results: Foster parents notice the division of responsibility in the process of educating children brought up in their families. Their role is to select an institution, start cooperation, help the child learn and accompany rehabilitation, inform the school staff about the specificity of the child’s functioning, and be the advocate for the child. The role of the staff side, according to parents, is to implement the recommendations of specialists, cooperate with parents, set adequate requirements for the child, and present a friendly attitude towards the child and the foster family. Conclusions: Based on the research results, guidelines for the good cooperation of foster parents with the school were formulated. It is important for teachers to understand the specific situation of not only the child (their life experiences, developmental disorders), but also the foster parent, as well as appreciate their commitment to the child. It would be important to create a support system.
Education of Children with Borderline Intellectual Functioning - Specificity and Areas of Support
Authors: Śmietańska Justyna
Published: November 2021

A characteristic feature of each class in a public school is the presence of children with a borderline intellectual functioning. This article presents the specificity of the functioning of children with the above-mentioned intellectual potential.
Disabled Everyday Life in the Context of the Concept of Social Labeling
Authors: Banach Iwona
Published: November 2021

The article deals with issues related to the perception and positioning of people with disabilities in the current space of social life. It was pointed out that the conditions and possibilities of everyday human existence and access to everyday spaces, regardless of the level of fitness, constitute an opportunity to normalize interpersonal relations based on a democratic order.
The Humanistic Perspective of Creativity in the Discourse of Involved Educators - Irena Wojnar and Janusz Korczak
Authors: Wróblewska Halina Monika
Published: November 2021

The role of the educator is to reflect on the processes of creation, co-creation and self-creation of man. One of the areas of social experience is concern about the fate of man in the modern world. The second area is the sense-forming activity present in experiments. Research Aim: The presented study is an attempt to present the issue of the humanistic perspective of creativity present in the discourse of educators distinguished in their involvement in the affairs of other people – Irena Wojnar and Janusz Korczak.
Poznan University Pedagogy at “Secret” University of the Western Lands in Warsaw (1940-1945)
Authors: Nowak-Kluczyński Konrad
Published: November 2021

During the Second World War, besides the fact that Poznan University stayed closed, Poznan University pedagogy was continuing its didactic, research and organizational activities under the „Secret” University of the Western Lands (UZZ) in Warsaw, which was set up in 1940-1945. In the UZZ structure, there was the Department of Humanistic Studies with a pedagogy section.
The Child in the Process of Education – Connotations of Styles of Knowledge Acquisition
Authors: Wawer Rafał Ireneusz
Published: November 2021

Human brain is set of connections, circuits and countless branches and blockers. Individual features decide on way of information absorption. It is possible to observed a kind of programming of the method of receiving and selecting information.
Pengaruh Tuned Mass Damper (TMD) Terhadap Respons Getaran pada Struktur Bangunan
Authors: Suryadi Dedi , Ridlo M. Rasyid , Daratha Novalio , Agustian Indra
Published: November 2021

Penelitian ini didasari oleh banyaknya kehancuran struktur bangunan yang terjadi akibat gempa bumi, sehingga dibutuhkan suatu sistem peredam yang efektif sebagai solusi untuk struktur bangunan. Penelitian ini menganalisis pengaruh penambahan Tuned Mass Damper (TMD) pada struktur bangunan berlantai satu. Penelitian ini dilakukan pengujian secara eksperimental dengan cara membandingkan respons getaran struktur tanpa TMD dan dengan penambahan TMD. Nilai rasio massa dan kekakuan yang gunakan masing-masing adalah dari 2% sampai 20% dari nilai parameter struktur utama dengan variasi kenaikan 2% untuk setiap langkah.  Rasio massa didefinisikan sebagai perbandingan massa struktur dengan massa damper, sedangkan rasio kekakuan adalah perbandingan antara kekakuan struktur dan kekakuan damper. Frekuensi gaya gangguan adalah sebesar 10,5 rad/s, 11 rad/s, dan 11,5 rad/s. Hasil penelitian ini menunjukkan bahwa penambahan TMD pada struktur dengan rasio TMD yang tepat cukup efektif dalam mengurangi respons amplitudo pada struktur. Nilai rasio TMD dengan md 12% dan kd 10% untuk frekuensi gaya gangguan 11,5 rad/s memperlihatkan hasil reduksi amplitudo struktur sebesar 75,19% dibandingkan dengan amplitudo struktur tanpa TMD.
Evaluasi Variabilitas Kinerja Struktur Perkerasan Jalan Berbasis Pengujian Seismik
Authors: Rosyidi Sri Atmaja P.
Published: November 2021

Evaluasi perkerasan jalan diperlukan untuk memeriksa kerusakan awal yang terjadi pada perkerasan. Penilaian perkerasan dilakukan untuk memprediksi kualitas material perkerasan secara fungsional dan struktural. Penelitian ini bertujuan untuk menilai dan mengevaluasi perkerasan jalan secara struktural menggunakan pengukuran seismik Spectral Analysis of Surface Waves (SASW). Metode SASW menguji sifat material perkerasan sebagai teknik evaluasi struktural. Metode SASW merupakan metode seismik non-destruktif yang menghasilkan, mengukur, dan memproses gelombang Rayleigh yang terdispersi. Selanjutnya, proses inversi dengan teknik optimasi digunakan untuk menganalisis data dispersi gelombang Rayleigh guna menghasilkan profil kekakuan setempat, dalam parameter kecepatan gelombang geser dan modulus elastisitas. Parameter kekakuan dari metode ini yang dihasilkan pada tingkat regangan mikroskopis yaitu kurang dari 0,001%, di mana pada tingkat ini, bahan tanah berperilaku elastis linier. Hasil dari uji SASW selanjutnya dibandingkan dengan uji Marshall dan nilai uji Dynamic Cone Penetrometer (DCP). Pengamatan visual juga dilakukan untuk menentukan penilaian fungsional untuk mengukur seberapa besar kerusakan permukaan jalan. Hasil penelitian menunjukkan bahwa metode SASW dapat secara efektif mengukur kecepatan gelombang geser dan variabilitas modulus elastisitas pada setiap lapisan perkerasan. Studi ini merekomendasikan pengujian seismik untuk memeriksa variabilitas kinerja struktural perkerasan jalan terpasang.
Kinerja Boiler dengan Sistem Pembakaran Bersama antara Ampas Tebu dengan Sekam Padi dan Cangkang Kelapa Sawit
Authors: Harnowo Saptyaji , Yunaidi Yunaidi
Published: November 2021

Operasional boiler di sebagian besar pabrik gula saat ini banyak yang mengalami kekurangan pasokan bahan bakar ampas tebu karena penurunan kapasitas giling. Kondisi ini menimbulkan masalah terhadap kontinuitas pasokan energi uap dan listrik di pabrik gula, sehingga untuk mengatasi masalah tersebut banyak dilakukan dengan penambahan bahan bakar alternatif dengan model pembakaran bersama (co-firing). Penelitian ini mencoba melakukan kajian model pembakaran bersama ampas tebu dengan sekam padi dan cangkang kelapa sawit berbasis persentase berat bahan bakar. Penelitian dilakukan berdasarkan data operasional boiler di pabrik gula Trangkil saat musim giling tahun 2020. Data yang dikumpulkan meliputi tekanan, kapasitas, dan temperatur uap, serta temperatur air masuk boiler dan temperatur gas buang. Analisis bahan bakar yang dilakukan adalah uji proksimat dan ultimat. Perhitungan dan simulasi pemakaian bahan bakar, kebutuhan volume furnace, efisiensi, dan rugi-rugi boiler dilakukan menggunakan bantuan analisis software Firecad WTPB. Hasil penelitian menunjukkan bahwa co-firing dapat menaikkan efisiensi boiler, menurunkan rugi-rugi boiler, menurunkan pemakaian bahan bakar dan kebutuhan volume furnace, serta menurunkan kecepatan gas buang di sekitar pipa-pipa uap utama. Mitigasi risiko harus dilakukan karena sistem ini dapat meningkatkan temperatur furnace, yang dapat meningkatkan potensi slagging dan fouling sehingga mengganggu kinerja boiler saat musim giling.
Pengaruh Interlayer Elektroplating Zinc pada Kekuatan Mekanik Friction Stir Spot Welding Aa1100-Ss400
Authors: Saputra Lingga Arti , Sukarno Nota Ali , Zulaehah Siti
Published: November 2021

Sambungan FSSW dengan material yang berbeda banyak digunakan pada kendaraan. Namun, masalah muncul ketika material tersebut tidak tersambung dengan sempurna. Penggunaan interlayer Zn mampu meningkatkan kemampuan sambungan. Variasi penggunaan dwell time dan diameter shoulder digunakan untuk memperjelas peranan interlayer electroplating Zn. Pengujian tarik geser yang telah dilakukan membuktikan bahwa penggunaan interlayer electroplating Zn memiliki kemampuan sambungan yang lebih baik. Nilai maksimal pengujian tarik geser sebesar 3.8 kN. Nilai maksimal sambungan tanpa interlayer elektroplating Zn 2.5 kN. Pengujian kekerasan menunjukkan nilai yang lebih besar 63 HV dari pada sambungan tanpa menggunakan interlayer elektroplating Zn.
The acceptability of COVID-19 vaccination during spring crisis in Myanmar
Authors: Aung Yadanar , Htun Zaw Z. , Marzo Roy R.
Published: November 2021

Background: During the spring crisis, the coup and COVID-19 have led to a weakening vaccination program and Myanmar’s coronavirus prevention measures have been collapsed. The objective of this study was to determine the COVID-19 vaccine acceptance and assess its associated factors among the general adult population in Myanmar.Methods: A cross-sectional, web-based survey was conducted with a total of 301 participants. The association between vaccine acceptability and its determinants was assessed by binary logistic regression analysis.Results: The majority (90.4%) responded that they would like to accept vaccination if it is successfully developed and approved for listing in the future. Among the respondents, two-fifths (40.5%) had already received 1st dose of the COVID-19 vaccine, and 86.4% of the respondents thought that doctor’s recommendation is a crucial factor in vaccination decision-making, while 70.4% responded that vaccine price is an essential factor. If the younger age of participants who possessed lower monthly household income and agreed that the doctor’s recommendation is an important factor in vaccine decision making, the probability of accepting vaccine was more chance than those of older age participants.Conclusions: The study highlighted that majority of the respondents wanted to accept the vaccine although they were concerned about the side effects and political unrest. It is the recommended to develop a strategy successfully to strengthen vaccine convenience.
Factors influencing Bachelor of Science in Clinical Medicine students performance in Clinical Officer Council Licensure examination, Kenya
Authors: Kuria Eunice M. , Nyongesa Margaret W. , Choge Joseph K. , Boruett Norbert
Published: November 2021

Background: Clinical medicine program has recorded high rates of student’s enrolment to training while their performance in clinical officers’ council (COC) licensure examination remains variable. This study investigated performance of clinical medicine degree student’s in COC examinations by determining student characteristics, institutional and regulatory body factors in relation to performance.Methods: A retrospective study, using mixed method approach to collect data. A sample total of 427 of students was analyzed while cluster and purposive sampling were used for key informants interviewed. Quantitative data was converted from Microsoft excel to statistical package for the social sciences (SPSS) software version 26 and analysed. Odd ratio was used to measure strength of association between students,institutions and regulatoy body charateristics and performance with p<0.05 being considered significant. Qualitative data was transcribed  for content analysis.Results: The results indicated that there was highly significant relationship among the performance of students in government and private institutions respectively (p<0.001) unlike faith-based institutions (p=0.292). Private institutions were 0.158 more likely to perform better than other institutions while government institutions were 5 times more likely to perform better than any other institutions.Conclusions: Age, mode of study and years of experience were found to be significant factors associated with performance while intergrity in marking was an important concern. The recommendations from the study are that training institutions continue upgrading program but factors contributing to low performances should be looked into. There is need to select experienced faculty to teach and set competency based licensure examination after internship.The study has demonstrated that results can be used to predict performance which are reliable for developing recruitment and examination policies.