bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental Analysis of Partial Replacement of Glass Powder and Fly Ash with Different-Different Percentages of Cement to Improve the Compressive and Flexural Strength of Concrete
Authors: Gupta Ronak
Published: September 2021

Abstract: The ordinary material for construction is concrete in India and its production causes some environmental effects during the production. There are many countries seeing deficiency of human dumping wastes or it’s becoming very serious day by day for each nation. In order to deal with atmospheric impact related with cement manufacturing and so there is a requirement to produce an alternative binding material for preparing concrete. The development of concrete could reducing the utilization of naturally occurring sources or lesser the load of pollutants on atmosphere. In current scenario, no. of researchers have recognized the uses of additional cementing materials like silica fumes, fly ash, glass powder, rice husk ash, blast furnace slag etc. It could also change the different properties of hardened and freshen state of concrete, and also contributing the financial system in constructional cost. Efforts put on the concrete construction to mix fly ash and waste glass powder as half substitute with cement .Now a days Glass used in different way in day-to-day life. As glass is non-biodegradable, landfills don’t provided an environmental eco-friendly resolution for dumping. Fly ash containing large amount of silica in comparison to cement. In current scenerio lots of industries producing more quantity of fly ash or its sold out very cheapest price in market. Glass is an inert material which could be recycled and used several times without altering its chemical property. Glass is an amorphous material which having high % of silica content. This property makes it probable pozzolanic property when its particles sizes is less than 75 mm. An important anxiety related to the uses of glass powder in concrete mix is that is chemical reaction happen among the alkali in pore solution and silica rich glass particle, which is called Alkali-Silicate. Reactions could be more harmful for the stability parameters of concrete, for this proper safety measure should be taken to reduce its effects. The addition of fly ash in glass concrete reducing the alkalies, silica reaction and improves the workability and durability of concrete. Unwanted glass powder is using for preparing concrete which leads environmental ecofriendly. The main purpose of this study is to find out effectiveness on durability of unwanted glass powder and fly ash based concrete. For analysis it was proposed that the uses of unwanted glass powder and fly ash as half substitution with cement in following proportion (10%, 20%, 30%, 40%) in concrete mix. Compressive strengthening of cubes and flexural strengthening of beams at the interval of 7th, 28th days were considered and compared with the conventional concrete. The results showing the probability of using unwanted glass powder and fly ash as half substitution with cement in concrete. Keywords: Silica fumes, Blast furnace, Rice husk, Glass powder, Fly ash, Compressive strengthening, Flexure strengthening
WI-FI Access Point (WAP) OPTIMAL Placement in an Indoor Location
Authors: Farheen Roohi
Published: September 2021

Abstract: The popularity of location based applications is undiminished today. They require accurate location information which is a challenging issue in indoor environments. Wireless technologies can help derive indoor positioning data. Especially, the WiFi technology is a promising candidate due to the existing and almost ubiquitous Wi-Fi infrastructure. The already deployed WiFi devices can also serve as reference points for localization eliminating the cost of setting up a dedicated system. However, the primary purpose of these Wi-Fi systems is data communication and not providing location services. This accuracy can be increased by carefully placing the Wi-Fi access points to cover the given territory properly. This method is based on simulated annealing which finds the optimal number and placement of Wi-Fi access points with regard to indoor positioning and investigate its performance in a real environment scenario via simulations. Keywords: Wi-fi access point (WAP), simulated annealing, router, wireless, placement, locationing.
Foundations of Turkish Claims in the Eastern Mediterranean
Authors: Gudev Pavel Andreevich
Published: September 2021

The Eastern Mediterranean is becoming a new region of interstate confrontation and clash of national interests. This is largely due to the discovery of oil and gas reserves, the development of which is becoming possible with the existing technology. The Republic of Turkey has a special position regarding this maritime region. The paper analyzes those bases - historical, political and legal - that determine Turkeys current policy with regard to maritime delimitation and the settlement of maritime disputes in the Eastern Mediterranean. Particularly, it is shown that Turkeys policy in the region continues to be based on the approaches that were announced by Turkey during the I-III UN Conferences on the Law of the Sea (1958, 1960, 1973-1982 respectively), which have remained unchanged up to now. This position, as regards both the outer limits of the territorial sea, the legal regime of islands and the delimitation of the continental shelf, continues to define the essence of the controversy between Turkey and other countries of the region, including Greece and the Republic of Cyprus. At the same time, it is shown that there is a set of circumstances that significantly limit the prospects of solving these interstate contradictions within the framework of international judicial instances, including the International Court of Justice and the International Tribunal for the Law of the Sea. The conclusion is made that, for both Turkey and Greece, the most acceptable option would be to work out a model of settlement, which would not imply the obligation of its immediate implementation. Particular attention is paid to the ideological and practical framing of Turkish claims within the framework of the Blue Homeland doctrine, developed by a number of retired Turkish officers. It shows how Ankara uses the ideas of pan-Turkism and neo-Ottomanism to justify its claims to vast maritime spaces. The distinctive feature of this doctrine most likely is its anti-American, anti-NATO and anti-European orientation. There is a paradoxical situation when certain ideas enshrined in this concept directly correlate with the interests of the Russian Federation.
Internet Revolution or Just Fitna: Towards the Tenth Anniversary of the Arab Spring
Authors: Vasiliev Aleksey Mikhailovich , Zherlitsina Natalia Aleksandrovna
Published: September 2021

The article is dedicated to the analysis of the tenth anniversary of the revolutionary events in the Middle East and North Africa (MENA), called the Arab Spring. The relevance of the study of the consequences of political transformations in Arab countries is due to the incompleteness of the modernization processes in such areas as public administration, justice and human rights, which gave rise to the discontent of the active part of society, which had initiated the protests. The idea of the research was to compare the causes of popular uprisings, the methods of political struggle, the main actors and the results of the Arab Spring for most of the countries affected by this process. Particular attention has been paid to the growing popularity of Islamist political forces, which have given their answers and pseudo-answers to acute societal issues. With the help of comparative and typological analysis, the peculiarities of different models of political development in the Middle East and North African countries have been studied. Over the past decade, world science has accumulated a significant layer of research on the Arab Spring phenomenon. The authors have taken into account a wide range of opinions of scholars from Europe, the United States, Turkey, Israel, and the Arab states. Aiming to assess the political transformation of the MENA region over the past 10 years, this study analyzes changes in the position of external actors such as Russia and the USA. The authors conclude that the influence of the US as a whole in the region has decreased, while the influence of Russia, Turkey, Iran, and Saudi Arabia has increased. Israel has managed to strengthen its own security by establishing normal relations with a number of Arab states in the region. The popular unrest that erupted again in Iraq, Lebanon, Sudan, Algeria, and Tunisia in 2018-2021 was objectively caused by the same conditions that had given rise to the Arab Spring and with the same uncertain results so far.
Admission of Turkey into the European Union: “Does Religion Matter?”
Authors: Aryal Saroj Kumar , Nair Adithyan , Bhattarai Gaurav
Published: September 2021

With the rising fear of Islamisation in Europe and increasing Islamist sentiment in Turkey, the issue of religion in the context of integration of Turkey into the European Union remains relevant. After a long-lasted wait and continuous negotiations, Turkey seems to be moving further away from getting accepted in the EU. The research focuses on the religious factor in this unrelenting friction between the two regions / entities and answers the question as to why the EU and Turkey should consider religion as one of the variables in the European integration. The analysis is done with the use of primary and secondary sources with special focus on Samuel Huntingtons realism-inspired work Clash of the Civilization. Turkish sources were used for better understanding the dynamics of Turkey. In terms of methodological approach the research is done with using the content analysis and contemporary observation of socio-political scenario and behavioral changes that the EU and Turkey going through. The authors conclude that there is no proper mechanism to consider religion as a variable, but psychologically it is still playing a major role in both the EU and Turkey. The authors believe that the EU and Turkey should discuss the religious dimension of integration while talking other dynamics.
Book review: Fenenko, A.V. (2020). History of International Relations: 1648-1945. 2nd edition. Moscow: Aspekt Press publ., 800 p. (In Russian)
Authors: Alekseeva Tatiana Alexandrovna
Published: September 2021

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Kempen Tanggungjawab Sosial Korporat (CSR) dan Persepsi Khalayak: Kesan Kempen CSR Terpilih Petronas Terhadap Sikap Kasih Sayang Golongan Pelajar kepada Ibu Bapa
Authors: Zainal Abidin Muhammad Zaiamri , Shaid Nursyamira , Zanuddin Hasmah
Published: September 2021

Corporate Social Responsibility (CSR) is a form of corporate commitment to society. The commitment is made to improve the economy and the quality of life of all stakeholders including employees and the community. The purpose of today’s CSR does not only for the purpose of organization’s branding, it is also contributed in community development especially in educating moral values. Thus, this study focuses on identifying the influence of CSR campaigns conducted by corporate organizations in an effort to create noble values among individuals. This includes research on the impact of watching the Petronas CSR advertising campaign “Burung Murai” broadcasted in 2007, especially to the youth in Malaysia. To conduct this study, set of survey questionnaire distributed to 270 students of the Faculty of Arts & Social Sciences, University of Malaya by using random sampling. The results of the study found that there are correlations between the aspects of individual observation in influencing the formation of perception which ultimately affects the formation of pure values towards themselves.
Influence of self-presentation on Facebook towards social capital among UCSI students
Authors: Ling Zhi Yong , Ahadzadeh Ashraf Sadat , Tee Jing Ni
Published: September 2021

This study aims to investigate the correlation between self-presentation on Facebook and social capital, which includes bridging and bonding social capital among university students in Kuala Lumpur. Total 375 university students took part in this study. The results show that most of the participants have used Facebook for 7 to 9 years, and spent time on Facebook 1 to 2 hours every day. The self-presentation on Facebook and each type of social capital were rated as moderate level among these participants. Pearson Correlation analysis revealed that self-presentation on Facebook has a significant relationship with bridging and bonding social capital. This study provides a better understanding among university students in Kuala Lumpur campus on how these students engage in strategies of self-presentation on Facebook. Limitations and future recommendations were discussed in the last section of this paper.
Analisis Pelaporan Atlet Wanita Islam Semasa Sukan Sea 2015 dan 2017 dalam Utusan Online dan Berita Harian Online
Authors: Mohamad Saleh Mohamad Saifudin , Zamri Muhammad Syahir
Published: September 2021

The involvement of female Muslim in the sports arena is not new in Malaysia. In the national sports history, there are several big names such as Farah Ann Abdullah, Nur Dhabitah Sabri and others who are female Muslim athletes that have contributed medals and honour the country’s name in international sports. Despite reporting on their success, female Muslim athletes are also not excluded from controversial reporting by the media, particularly with regard to their attire or lifestyle. Taking into account on the lack of previous studies exploring the reporting of female Muslim athletes’ in the local newspaper, this study was conducted by studying the types of frames, sources and pictures used by Utusan Online and Berita Harian Onlineon their reporting of female Muslim athletes during the SEA Games 2015 and 2017. Results from content analysis on 83 reporting on female Muslim athletes during the SEA Games showed that both newspapers tend to use conflict frames in their reporting.
Netizens’ Political Engagement in Malaysia: Impact of Anti Fake News Act 2018
Authors: Abu Seman Rabiah Adawiah , Laidey Nooraneda Mutalip , Shouket Ali Rizwanah
Published: September 2021

The 14th Malaysia General Elections (GE14) in 2018 witnessed a historic victory for the opposition party led by Tun Mahathir Mohamed against the 60 years government holding party; BN coalition. Concurrently, it also witnessed social media tools; WhatsApp and Facebook as the most dominant and effective messaging tools, but also a source of fake and unverified news; followed by blogs and other sources. Prior to the election, the Anti-Fake News Act 2018 had been enforced in April 2018 where any creation, offering, publishing, distribution or dissemination of fake news is a crime. This research explores the effect of Anti-Fake News Act 2018 on netizens' political engagement through Facebook and Whatsapp during the 14th Malaysia General Election 2018 with impulsivity and habitual conduct as moderators. Data has been collected from 556 participants through online survey based on a framework integrating Theory of Planned Behaviour (TPB) and Self Control Theory (SCT). Limited studies have tested the integration of TPB and SCT on knowledge about Anti-Fake News Act 2018 and political engagement. The findings of the study explain the influence of knowledge, impulsivity and habitual conduct on political engagement among Malaysian netizens through Facebook and Whatsapp during the GE14. Political engagement intensity has changed consequently after the Anti-Fake News Act 2018’s enforcement due to impulsivity. This study further adds to the literature in the area of online political participation and cyber law; uncovering the role of impulsivity and habitual conduct on netizens’ political engagement, suggesting the basis for future research in this phenomenon.
Language and Visuals in Contradiction: A Semiotic and Discourse Analysis of a Moroccan Public Service Announcement for Forest Protection
Authors: Mohamed Mliless , Larouz Mohammed , Yachoulti Mohammed
Published: September 2021

In Morocco, public service announcement is a complex field in which various linguistic practices and semiotic representations collide. Hence, the aim of the present work is to demystify the misalignment between language and visuals in the public service announcement in a video on the protection of the environment, namely towards forests. This study adopts a discourse and a visual analysis to clarify the extent to which the interpretation of the announcement leas to misunderstanding and causes a lot of ambiguity. The study also shows that the trees and forests are linguistically reported as feminine constructs while the visuals portrayed them as masculine constructs. This article has a lot of implications for public institutions, advertising companies, and future researchers whose efforts are required to reconsider the pendulum between the linguistic and the visual in public announcements so as to effectively raise people’s awareness towards environmental issues.
Ludvig Holberg and Russo-Scandinavian Literary Relations in the 18th Century
Authors:   A.M. Gorky Institute of World Literature of the Russian Academy of Sciences, Ljustrov Mikhail Yu.
Published: September 2021

The study deals with the reception of the works by a Danish classic writer, comedyThe study deals with the reception of the works by a Danish classic writer, comedydramatist, fabulist, poet, novelist, historian and moralist Ludvig Holberg in Russia ofthe 18th century focusing on the writings translated into Russian from the German,Latin and Danish — or untranslated yet containing information about Russia, its monarchs and history. The author addresses Holberg`s works within the context of the Russian-Scandinavian literary relations, for this purpose involving works of Danish and Swedish authors of the 17th–18th cs., in one way or another linked with the subject under study.The book is addressed to Slavic scholars, university professors, graduate students and students of philology.
Desarrollo de software de simulación para generar un documento clínico XML - CDA
Authors: Gómez Ortega Luis Fernando , Yunda Perlaza Leonardo , Torres Pérez Myriam Leonor , González Clavijo Claudio Camilo
Published: September 2021

El presente documento de trabajo se centra en el proceso de desarrollo de un simulador que permita llenar los campos de un documento denominado epicrisis y generar un documento XML-CDA y PDF, en el marco del proyecto denominado “Diseño y construcción de un documento HL7 CDA para historia clínica colombiana”. En el proyecto “Diseño y construcción de un documento HL7 CDA para historia clínica colombiana”, se plantea el desarrollo de un simulador basado en software para ser usado en la formación de estudiantes de la escuela de ciencias de la salud de la Universidad Nacional Abierta y a Distancia. El propósito del software es poder brindar a los estudiantes una experiencia mucho más completa que la actual, a través del diligenciamiento del documento epicrisis que incluye aspectos legislativos, conjuntos estandarizados de datos y el uso de estándares como Loinc y HL7. En adelante se procede a explicar el proceso de desarrollo del simulador y su respectiva justificación de acuerdo con las necesidades del proyecto.
Documento diagnóstico inicial de 11 E.S.E. en la apropiación de la telesalud en el modelo integral de atención en salud de treinta y cuatro (34) Empresas Sociales del Estado
Authors: Cruz Suarez Magda Gioanna , Alvis Duffó Paola , Torres Pérez Myriam Leonor
Published: September 2021

El documento diagnóstico responde a la necesidad del fortalecimiento del “Proyecto Plan Fronteras para la Prosperidad” como estrategia del Gobierno Nacional a través de la Cancillería en aras de responder de manera oportuna a lo descrito en el Plan Nacional de Desarrollo 2010 – 2014 Prosperidad para todos, en el cual se define como un propósito nacional las áreas fronterizas, la promoción de políticas diferenciadas y la focalización de recursos, favoreciendo sectores estratégicos para el desarrollo de estas regiones. Por otro lado, contribuye a la gestión de la salud, mediante el desarrollo de las capacidades básicas para actuar en la planificación e interacción de las acciones relacionadas con la producción social de la salud dentro y fuera del sector. Así mismo la UNAD bajo el liderazgo de la Escuela de Ciencias de la Salud, y en corresponsabilidad con otros sectores y actores propone acciones para impactar positivamente los determinantes sociales y económicos de la salud, propiciando condiciones de vida, desarrollo social y económico sostenible en toda la población del país, incluidas las zonas fronterizas de manera transversal bajo los lineamientos definidos en el Plan Decenal de Salud Pública 2012-2021, en concordancia con la Política de Atención Integral en Salud y el Modelo Integral de Atención en Salud, entre otras políticas públicas vigentes.
Riesgo psicosocial en tecnólogos en radiología
Authors: García Salamanca Angela Viviana , Diaz-Muñoz Ihmaidan Gabriela , Rojas Gómez Ciro Alfonso
Published: September 2021

Los resultados parciales que se presentan a continuación son producto de un proyecto de investigación que tiene como objetivo Identificar la relación entre las condiciones de la organización del trabajo y la carga de enfermedad de los trabajadores de la salud expuestos a radiaciones ionizantes. Su diseño metodológico es de tipo cualitativo, con enfoque descriptivo, el tipo de muestreo es no probabilístico por conveniencia, las técnicas e instrumentos de generación de información se encuentran articuladas a cada una de las fases del proyecto a ejecutar, las cuales son: primera fase, caracterización de condiciones del trabajo, segunda fase, descripción a exposición a radiaciones ionizantes y tercera fase, comprensión de relación causal entre las condiciones del trabajo y la carga de enfermedad de trabajadores expuestos a radiaciones ionizantes. Los resultados que se presentan son la caracterización sociodemográfica, niveles de riesgo según las características de riesgo psicosocial.
Optimization of exopolysaccharide synthesys by medicinal fungus Trametes versicolor in submerged culture
Authors:   University of Food Technologies – Plovdiv, Angelova Galena , Govedarova Elizabet , Brazkova Mariya ,   University of Food Technologies – Plovdiv, Kostov Georgi ,   University of Food Technologies – Plovdiv, Krastanov Albert ,   University of Food Technologies – Plovdiv
Published: September 2021

The species Trametes versicolor refers to medicinal mushroom well known in traditional Asian medicine for over 2000 years. Due to the long time required for basidiocarp formation, attention has recently been given to the submerged cultivation method for the production of mycelial biomass and various bioactive components. Exopolysaccharides (EPS) produced by Trametes versicolor are essential components possessing numerous functionalities and exhibiting potential medicinal applications. The subject of this investigation is higher fungus Trametes versicolor isolated from Bulgaria. Four well-defined culture media were studied to select the medium that maximizes production of EPS in submerged cultivation. The M3 was shown to provide the highest yields of EPS and was further investigated to optimize EPS production conditions. The initial glucose concentration was found to be the most important factor in both EPS production and cell growth. The maximum biopolymer quantity of 1.067 g/L was obtained at 40 g/L glucose. For examination and evaluation of the correlation between the carbon source and the complex influence of the nitrogen sources over the mycelial growth and the EPS synthesis and the optimization of the media orthogonal central composition design 23 with star arm ±α=1.454671 was applied. The experimental design was based on 21 combinations. Dynamic cultivation was carried out after the optimization of the media for determination of the effect of the duration of the cultivation process over the Trametes versicolor growth and EPS gain. Maximum EPS yield was observed after 216 hours.
Learning Multimedia Based on RPG Maker MV Material for Circumference and Area of Flat Shapes for Elementary School Students
Authors: Dewi Ni Luh Putu Jayanti , Sujana I Wayan
Published: September 2021

It is known that the implementation of learning during the Covid-19 pandemic causes students to become bored quickly and online learning multimedia is not yet available. To overcome this, development research is carried out to produce designs and learn multimedia that are suitable for use after going through the material expert test, learning media experts test, learning design experts test, individual trials, and small group trials. This research develops circumference and area of flat shapes for fourth-grade elementary school students based on RPG Maker MV by using the Hannafin and Peck model. The types of data used are qualitative and quantitative, with data collection methods and instruments namely questionnaires. Data analysis methods and techniques used are descriptive qualitative and descriptive quantitative analysis. The results of this development research are: 1) The design of learning multimedia based on RPG Maker MV is made for elementary students using the Hannafin and Peck model, 2) Feasibility of learning multimedia based on RPG Maker MV for circumference and area of flat shapes in elementary school students which include: (a) Material expert test get a percentage of 90% with very good qualifications (very feasible), (b) Learning media expert test get a percentage of 96.7% with very good qualifications (very feasible), (c) Learning design expert test get a percentage of 95% with very good qualifications (very feasible), (d) The individual trials get a percentage of 96.7% with very good qualifications (very feasible), (e) The small group trial get a percentage of 95.6% with very good qualifications (very feasible). So it can be concluded that the resulting learning multimedia is very feasible to be used in the learning process.
Development of Flipped Classroom Learning Combined with Google Classroom and Video Conference to Improve Students’ Learning Independent and Mathematics Learning Outcomes
Authors: Suryawan I Putu Pasek , Pratiwi Kadek Ayu Mutiara , Suharta I Gusti Putu
Published: September 2021

The problem of this research arises from learning independent is a crucial part needed in learning which then gives certain influence toward learning outcome; hence a right strategy is needed to gain it. This study was developmental study toward flipped classroom learning aiming at: analyzing the validity, practicality and the effectiveness of flipped classroom learning combined with google classroom and video conference. This study was based on ADDIE model. In accordance to the subject of this study, there were three experts in developing learning administrations and two experts in developing learning media in validating stage and 32 students from Junior High School in implementing stage. The results of this research in terms of quantitative findings revealed that the validity of learning administration was worth to be implemented with validity average of lesson plan was around 88,10%, teaching materials was around 90,00%, evaluation instrument was 90,48% and learning media was 90,00 % and those result was categorized into very worth-implementing. The practicality of flipped classroom seen from the questionnaire result showed that students’ respond gained 3,22 which could be categorized into high category, and teachers’ respond was at 3,70 which can be categorized into very high category. In term of learning independent, an improvement was also found, where before learning an average of 2.49 with the low category, and after learning 2.90 with the high category. The result of gain-analysis showed that the gained score reached 0,44 which could be categorized into medium. This result could be categorized into quite effective in improving the students’ math learning outcome. Based  on the result gained during the data analysis, it could be concluded that flipped classroom combined  with google classroom and video conference was effective in improving students’ learning independent and mathematics learning outcomes.
The Potential of Jenderal Soedirman's Short Film as Learning Media in National Events of the Colonial Period’s Material for Fifth Graders: A Semiotics Analysis
Authors: Supriatna Encep , Savira Ratu Tiara
Published: September 2021

The stories of Jenderal Soedirman, one of the national instrumental figures in seizing Indonesia's independence from the invaders, have been visualized in many films. Films containing events about the struggle for independence need to be studied, understood and remembered so that the values of nationalism are embedded. This film has the potential to be used as a learning media in packaging stories into interesting and meaningful learning for elementary school students. This leads researchers to analyze Jenderal Soedirman’s short film as learning media on the IPS national events of the time colonization of 5th graders of elementary school. This study  used a qualitative approach in observing an individual behavior and to describe the data of research’s findings in detail and moderation. The research method used was Roland Barthes’s semiotic analysis that focused on signs and symbols as markers interpreted by denotation, connotation and myth on the film. The data collecting techniques used were observation, student's journal, questionnaires and documentation. Based on research and discussion of semiotic analysis of Jenderal Soedirman’s short film as learning media on three meanings, it is evident that researchers can better understand the hidden meaning contained in the film. The researchers deeply identify the figure of Jenderal Soedirman, the myth believed by the Indonesian freedom people during his  struggle and this film potential to be used as a learning media because it increases students’ learning motivation by a score of  3,00 earned in a reasonably good category.
ANALYSIS OF CALORIMETRIC METHOD OF MEASUREMENT OF NATURAL GAS CALORIFIC VALUE
Authors:   Gas industry management “LvivGazvydobuvannya”, Ukraine, Motalo Andrij , Motalo Vasil ,   Lviv Polytechnic National University
Published: September 2021

The article considers the current methods of measuring the calorific value of natural gas which are valid in the upto-date gasometry. The procedure for measuring the gross and net volume-basis specific calorific value of natural gas by the calorimetric method is analyzed. It is shown that to increase the accuracy and validity of measurement results, the experiment to determine the values of gross and net volume-basis specific calorific should be performed for at least 5 samples of the investigated gas. A methodology for estimating the accuracy of measuring the gross and net volume-basis specific calorific values of natural gas by the calorimetric method by finding estimates of the uncertainty of the obtained measurement results taking into account both random and systematic influencing factors are developed. The uncertainty budgets for measuring the gross and net volumebasis-specific calorific values of natural gas have been developed for the practical implementation of the methodology. The results of experimental studies of samples of one of the natural gas fields are given and the objective values of the gross and net volumebasis specific calorific with estimates of extended uncertainty are obtained.
MODELING A NETWORK OF UNMANNED AERIAL VEHICLES
Authors:   Lviv Polytechnic National University, Mykyjchuk Mykola , Zihanshyn Nataliya ,   Lviv Polytechnic National University
Published: September 2021

The research concerns the methods of UAV group control in networks with duplex communication between nodes built on the "client-server" architecture. Such systems belong to self-organized networks with variable topology. It is important to study the allowable parameters of deviation from the task in the management of a group of UAVs and analysis of the network topology for the group flighting. The network was optimized according to the Ant Colony algorithm ACO. The application of different types of algorithms prevents routing problems in networks, such as ANTMANET, AntNet, ACODV and others. Methods of coordination of group joint actions are considered. A method is proposed by which the optimal number of UAVs operated by one operator can be determined and the traffic intensity of the communication channel is calculated, as well as the bandwidth and packet transmission delay are estimated.
The organizational and economic mechanism of the determinant’s activation of the regional development intensification in the conditions of digitalization
Authors: Tulchynska Svitlana , Derhaliuk Marta , Kravchuk Nataliia , Smerichevska Svitlana , Desiatov Tymofii
Published: September 2021

The purpose of the study is to substantiate the organizational and economic mechanism of the determinant’s activation of the regional economic systems development intensification in the context of digitalization. The study uses general and special methods of scientific research, including scientific knowledge, analysis, synthesis, dialectical, monographic, generalizations, functional, process, system and other methods. It is determined that the organizational and economic mechanism of the determinants activation of the development intensification of regional economic systems is an ordered set of objects, subjects, set goals, objectives, priorities, principles and specific management tools in terms of digitalization of economic development. As a result of the research, the conceptual identification of key elements of instrumental support of the determinants activation of the modern economic systems development intensification in the conditions of digitalization was carried out. The normative-legal mechanisms of the regional development intensification are offered.
Antimicrobial activity of Leuconostoc mesenteroides biofilm against different microorganisms
Authors: Ahmed Asmaa S. , Awad Abdullah
Published: September 2021

Back ground: Leuconostoc is one of the species of lactic acid bacteria that produced biofilms.Probiotic bacteria that produced biofilm  has  been used as naturopathy  against different microbial pathogens.

Objective: This study was conducted to determine the antimicrobial activity of  Leuconostoc  biofilm , against 24 isolates (4 of 6 different types) of food borne pathogens including Staphylococcus aureus , Salmonella spp, Escherichia coli , Klebsiella spp , Pseudomonas aeruginosa , Streptococcus mutans , Bacillus subtillus , Bacillus cereus, Bacillus sterothermophillus and Candida albicans.

Materials and methods: using various concentration in vitro by filter paper disk diffusion method .

Result: The present study showed the potent antimicrobial activity of the Leuconostoc mesenteroides biofilm against the all tested bacterial pathogens except  Bacillus species and yeast Candida albicans. Biofilm produced by Leuconostoc mesenteroides  showed highest zone of inhibition (13mm) against  Escherichia coli  and lowest zone of inhibition (7.0mm) against Streptococcus mutans .

Conclusion: Consequently, Leuconostoc mesenteroides biofilm may be used as an antimicrobial agent in food products to prevent spoilage.
Ser childfree en México: narrativas personales de quienes no desean ser madres o padres y su negociación con los estigmas sociales
Authors: Mandujano-Salazar Yunuen Ysela
Published: September 2021

El presente artículo explora la elección childfree en México e indaga particularmente el impacto de los estigmas sociales hacia las personas que deciden rechazar para sí la maternidad/paternidad. Luego de extraer las cualidades y roles normativos de la masculinidad y feminidad de los discursos hegemónicos en la sociedad mexicana, a partir del análisis interpretativo de encuestas en línea y entrevistas en profundidad, se develan las narrativas que emplearon las personas que se identifican a sí mismas como childfree para negociar con los estigmas sociales y defender su decisión. El alcance de este estudio exploratorio es limitado, pero sienta bases para la construcción de un panorama del fenómeno en México y visibiliza diversas problemáticas que requieren analizarse en profundidad. Asimismo, a diferencia de la tendencia de estudios sobre childfree alrededor del mundo, en este se incluyeron no sólo a mujeres, sino también a varones, buscando las similitudes y diferencias entre los estigmas que perciben y sus implicaciones en círculos privados y laborales. Los hallazgos nutren el debate relacionado con identidades de género en América Latina.
Energy availability during training camp is associated with signs of overreaching and changes in performance in young female cross-country skiers
Authors: Kettunen Oona , Ihalainen Johanna K. , Ohtonen Olli , Valtonen Maarit , Mursu Jaakko , Linnamo Vesa
Published: September 2021

Study aim: The aim of this study was to evaluate if young female skiers meet their energy and macronutrient requirements, and how energy availability (EA) and macronutrient intake affects their performance during an intensive training camp.

Material and methods: 19 female cross-country skiers (age 16.7 ± 0.7) filled in 48-hour food and training logs during a 5-day training camp. Fasting concentrations of hemoglobin, leptin, triiodothyronine (T3), insulin, insulin-like growth factor 1 (IGF-1), and glucose were measured before (PRE) and after (POST) the camp. Blood lactate (LA), heart rate (HR) and rating of perceived exertion (RPE) from a submaximal treadmill running test, jump height from counter movement jump (CMJ), and power from a reactive jump test (RJ) were also measured PRE and POST.

Results: Mean EA was 40.3 ± 17.3 kcal · kgFFM–1 · d–1. 58% of the participants had suboptimal EA, 37% had low EA, and 53% had suboptimal carbohydrate intake. HR, HR/RPE ratio, LA/RPE ratio, CMJ, hemoglobin, leptin, T3, and insulin decreased from PRE to POST. RPE and glucose increased from PRE to POST. EA during the camp correlated with changes in LA (r = 0.54, p = 0.018), LA/RPE (r = 0.65, p = 0.003), and RJ (r = 0.47, p = 0.043).

Conclusions: Many athletes had difficulties in meeting their energy and carbohydrate requirements during a training camp. Furthermore, sufficient EA may help to avoid overreaching and to maintain performance during an intensive training period.
Calidad de vida y autoestima en mujeres en etapa de menopausia, Jazán, Perú
Authors: Muñoz Julca Karmita Milagros , Ordinola Ramírez Carla María , Herrera García Yamira Iraisa
Published: September 2021

El objetivo de la investigación fue determinar la relación que existe entre la calidad de vida y autoestima de las mujeres en etapa de menopausia del Barrio Nueva Esperanza, en el distrito de Jazán, provincia de Bongará, departamento de Amazonas, Perú, durante el año, 2020. El enfoque fue cuantitativo. La muestra estuvo conformada por 40 mujeres en etapa de menopausia. Para la recolección de datos se utilizó como instrumento para calidad de vida el cuestionario “Menopause Rating Scale" y para la autoestima se utilizó el test de Rossemberg. Los resultados demuestran que el 57.7% (23) tienen una calidad de vida alta y autoestima alta, 17.5% (7) tienen una calidad de vida alta con autoestima media, , el 0.0% (0) tienen una calidad de vida alta con autoestima baja, 10.0% (4) tienen una calidad de vida buena con autoestima alta, 7.5% (3) tienen una calidad de vida buena y autoestima media, el 0.0% (0) tienen una calidad de vida buena con autoestima baja, 2.5% (1) tienen una calidad de vida baja y autoestima alta , el 2.5% (1) tienen una calidad de vida y autoestima baja y el 2.5% (1) tienen una calidad de vida baja y autoestima media. Concluyéndose que existe una relación altamente significativa entre calidad de vida y autoestima en mujeres en etapa de menopausia (X2c = 14.092 > X2t = 9.49, gl = 4, p = 0,007< α = 0.05) en esta población en estudio.
Percepción de la imagen social del profesional de enfermería, Chachapoyas, región Amazonas, 2020
Authors: Lobato Diaz Jordany Siday , Silva Diaz Yshoner Antonio
Published: September 2021

El objetivo del estudio fue determinar la percepción de la imagen social del profesional de enfermería en pacientes del puesto de salud Pedro Castro Alva, en el distrito de Chachapoyas, región Amazonas, Perú, 2020. El enfoque fue cuantitativo, de nivel descriptivo, de tipo prospectivo, observacional, transversal y univariado. La muestra fue de 49 pacientes; se recolectó los datos de forma virtual aplicando el cuestionario "Imagen social del profesional de enfermería". Los resultados fueron, que del 100% de pacientes el 54% tienen una percepción de la imagen social del profesional de enfermería favorable y el 46% desfavorable. En las dimensiones, información el 73.5% tiene una percepción desfavorable y el 26.5% favorable, en el campo de presentación el 71.4% posee una percepción favorable y el 28.6% desfavorable, en la actitud el 75.5% tiene una percepción favorable y el 24.5% desfavorable y en la dimensión religión el 69.4% posee una percepción favorable y el 30.6% desfavorable. Se concluye que gran parte de los pacientes tiene una percepción favorable acerca de la imagen social del profesional de enfermería, y en la dimensión información es desfavorable.
A “polymorphous low-grade neuroepithelial tumor of the young (PLNTY)” diagnosed in an adult. Report of a case and review of the literature
Authors: Broggi Giuseppe , Certo Francesco , Altieri Roberto , Caltabiano Rosario , Gessi Marco , Barbagallo Giuseppe Maria Vincenzo
Published: September 2021

Background:

Polymorphous low-grade neuroepithelial tumor of the young (PLNTY) is a rare neuropathological entity, recently introduced in neuro-oncology. These tumors, histologically similar to oligodendrogliomas, cause epilepsy, occurring in children and young adults. Only few cases of PLNTY have been described in literature and all reported cases invariably focused on the onset of these tumors in children and young adults.

Case Description:

We report the case of a 50-year-old woman suffering from epilepsy since the 1styear of her life. Computed tomography scan and magnetic resonance imaging of the brain documented the presence of a calcified mass involving left temporal lobe. The tumor was surgically excised and the histological examination showed a hypocellular and massively calcified neoplasm with morphological and immunohistochemical features consistent with the diagnosis of “PLNTY.”

Conclusion:

A review of the literature revealed that there are 31 cases of PLNTY reported in literature, most of which are children or young adults. The present case represents the second PLNTY diagnosed in a middle-aged adult to the best of our knowledge, suggesting that PLNTY should always be included in the differential diagnosis of low-grade brain tumors, also in adult patients.
A case of transpetrosal penetrating head injury near the sigmoid sinus
Authors: Kawai Nobuhiko , Yabuno Satoru , Hirashita Koji , Yoshino Kimihiro
Published: September 2021

Background:

Penetrating brain injury is relatively rare, which occurs in 0.4% of all head trauma. In past reports, the orbit, nasal cavity, and oral cavity are the most common routes of entry of foreign substances into the skull. In this case report, we experienced a rare case of head trauma who injury through the petrosal bone. To the best of our knowledge, there is no similar literature.

Case Description:

A 69-year-old man accidentally fell from a stepladder with a height of 3 m. There was a sprinkler on the ground, and it went through his posterior part of the right auricle at the collision. He was alert on admission. However, neurological examination showed right trigeminal, abducens, and facial nerve palsy. Computed tomography was performed, and it revealed that the objects penetrated the petrosal bone. Furthermore, it caused traumatic subarachnoid hemorrhage and acute subdural hemorrhage. Fortunately, it did not reach any cerebral artery and cerebral parenchyma. Immediately it was surgically removed with a good outcome.

Conclusion:

When suspected sigmoid sinus injury in head penetrating injury, craniotomy should be considered with bleeding from the sigmoid sinus during surgery.
The impact of subcaudate tractotomy on delusions and hallucinations in psychotic patients
Authors: Vilela-Filho Osvaldo , Ragazzo Paulo C. , Canêdo Darianne , Barreto Uadson S. , Oliveira Paulo M. , Goulart Lissa C. , Reis Manoel D. , Campos Telma M.
Published: September 2021

Background:

Delusions and hallucinations, hallmarks of the psychotic disorders, usually do not respond to surgical intervention. For many years, the surgical technique of choice for the treatment of refractory aggressiveness in psychotic patients in our Service was amygdalotomy in isolation or associated with anterior cingulotomy. No improvement of hallucinations and delusions was noticed in any of these patients. To improve the control of aggression, subcaudate tractotomy was added to the previous surgical protocol. The main goal of the present study was to investigate the impact of this modified surgical approach on delusions and hallucinations.

Methods:

Retrospective analysis of the medical records of psychotic patients presenting with treatment-resistant aggressiveness, delusions, and hallucinations submitted to bilateral subcaudate tractotomy + bilateral anterior cingulotomy + bilateral amygdalotomy in our institution.

Results:

Five patients, all males, with ages ranging from 25 to 65 years, followed up by a mean of 45.6 months (17–72 months), fulfilled the inclusion criteria. Delusions and hallucinations were abolished in four of them.

Conclusion:

These results suggest that the key element for relieving these symptoms was the subcaudate tractotomy and that the orbitofrontal and ventromedial prefrontal cortices play an important role in the genesis of hallucinatory and delusional symptoms of schizophrenia and other psychoses.
The Role of Social Media in the Intercultural Adaptation of Pekanbaru Immigrants
Authors: Tessa Shasrini  , Yudi Daherman
Published: September 2021

The role of Social Media in the process of cultural adaptation plays a very important role. Immigrants to foreign cultures have applied various technologies to assist them in cultural adaptation and acculturation processes. In recent years, the most common technique and useful that newcomers use is social media, which plays a role important in connecting people around the world together to share and exchange knowledge and cultural traditions. This research aims to find out the role of Social Media on the intercultural adaptation of Pekanbaru immigrants. By using the method qualitative descriptive through interviews with immigrants at the Pekanbaru Rudenim. Results from this study is that in the adaptation process carried out by immigrants going through several phases, honeymoon phases, culture shock, resolution and integration. Social media It has been used among migrants to maintain contact with family members and friends in their home country