bluuebunny/crossref_metadata_2025 huggingface dataset:
Los costos y la realidad empresarial
Authors: Luperdi Castañeda José Américo , Alzamora Carrión José Henry , Velasco Taipe Marco Antonio
Published: October 2023

En la actualidad hay que tener en consideración que las empresas no se encuentran a la vanguardia de todos aquellos conocimientos que se deben aplicar en la determinación de los costos. Por eso es importante que quien esté preparándose para ser un especialista en costos tenga el conocimiento básico necesario para poder determinar no solamente el costo del producto sino también que sirva como herramienta en la toma de decisiones. Por consecuencia, este libro se está preparando en función de desde el inicio de analizar o identificar si es un gasto o un costo; después de la identificación nos va a permitir que el valor que represente a cada elemento de costo sea el real, el apropiado, dándonos la seguridad de que dicha determinación es la correcta; permitiendo de esta manera que los datos que vamos a usar en la toma de decisiones son aquellos que nos van a permitir que esa decisión sea la correcta.
STUDENTS’ PERCEPTIONS OF THE USE OF GOOGLE DOCS FOR ONLINE COLLABORATIVE WRITING
Authors: Wahyuningsih Imelda , Herawati Henny , Prabandari Carla Sih
Published: October 2023

The existence of technology, particularly Google Docs, is vital to supporting students in surviving the online learning environment. This research, therefore, aims to investigate students’ perceptions of using Google Docs for online collaborative writing, as well as its benefits and limitations. There are two research questions addressed: (1) What are the students’ perceptions of the use of Google Docs for the ELESP students’ online collaborative? (2) What are the possible benefits and challenges of using Google Docs for the ELESP students’ online collaborative writing? This qualitative case study was conducted at the English Language Education Study Program of Sanata Dharma University. A close-ended questionnaire and semi-structured interview were utilized to collect data. The researchers discovered that most students had positive perceptions of using Google Docs for online collaborative writing. With the aid of its capabilities, Google Docs made online collaborative writing easier and more successful, particularly in students’ performance during group work, communication, and accessibility. Aside from the functionality of Google Docs, students’ active participation was also an important factor for successful online collaborative writing.
El Régimen Simplificado de Confianza como alternativa de tributación para los negocios informales mexicanos
Authors: Gómez González Martha Sheila , Reyes Rodríguez Mónica Araceli , Pelayo Velázquez Marcela de Guadalupe
Published: October 2023

La legislación tributaria mexicana ha establecido diversos regímenes fiscales tendientes a incentivar a quienes realizan actividades económicas de manera informal, a adherirse al padrón fiscal, con cargas administrativas simplificadas y tasas de impuesto reducidas. Desde el Régimen de Pequeños Contribuyentes en 1998, reemplazado por el Régimen de Incorporación Fiscal en 2014, y en enero del 2022 con el Régimen Simplificado de Confianza, siendo todos estos regímenes el punto de partida para incentivar a este sector a cumplir con sus obligaciones fiscales e incrementar la recaudación. En la presente investigación se presenta un análisis de la economía informal mexicana; las acciones implementadas por las autoridades fiscales con la creación de estos regímenes, su comparación, análisis y resultados
¿Postconflicto o postpandemia? Selección del beneficio de los descuentos en el impuesto a la renta para inversiones turísticas
Authors: León Cárdenas Mauricio Javier
Published: October 2023

En este artículo se explora la conveniencia y oportunidad de seleccionar entre las alternativas de descuento en el impuesto a la renta, establecidas para incentivar inversiones en el sector turismo en condiciones de postconflicto o de la reforma tributaria de 2022 (postpandemia). El análisis está condicionado por el monto invertido, los indicadores operacionales del sector y las razones financieras de rotación y rentabilidad, asociadas a las metas de la organización. La decisión se concreta en el retorno del activo (inversión), el plazo de recuperación y la contribución a la financiación del proyecto. El 2022 es un año de inflexión a partir del cual se identifica mayor certidumbre y conveniencia financiera para acogerse a la normativa incluida en la reforma mencionada.
Revisión descriptiva. Efectos del regreso a las oficinas luego de la no presencialidad en empleados americanos entre los años 2020 y el 2022
Authors: Alzate Restrepo Felipe , Guevara Jaramillo Alejandra
Published: October 2023

Este trabajo pretendió evidenciar los cambios en el ámbito laboral y los efectos que se han documentado en los trabajadores americanos en la postpandemia, a través de una investigación descriptiva, fundamentada en el análisis bibliográfico de diferentes estudios al respecto. Estos indicaron que, parte de los efectos que se dieron en países americanos, estuvieron ligados con su actualidad económica antes de la pandemia. Ninguno propuso un análisis profundo frente a los efectos psicológicos que vivieron los empleados. Uno de los fenómenos documentado fue la gran renuncia que visibilizó la crisis laboral y las expectativas que tenían las personas frente a las formas de emplearse. Debido a esto, las empresas vieron la necesidad de considerar alternativas de trabajo flexible para responder a la resignificación del balance entre vida personal-vida laboral. Adicionalmente, la gran renuncia parece encubrir un reto de salud mental como secuela de la pandemia que sigue vigente.
Development, Implementation and Assessment of Efficiency of Additional Educational Program on Electrical Safety
Authors:   Russian State Vocational Pedagogical University, Nekrasova Veronika N. , Konovalov Ilya D. ,   Russian State Vocational Pedagogical University
Published: October 2023

Currently, the fourth industrial revolution has a significant impact on educational activities, as a result of which many aspects of human life are digitalized, in this regard, there is a need for rapid and high-quality retraining of specialists in the field of electric power engineering. The article touches upon the urgent problem of reducing the level of fatalities at power facilities by introducing an additional educational program. The practical signifi-cance of the study lies in the improvement of additional educational program on electrical safety. The concept of “additional educational programs” (AEP) is disclosed. Particular attention is paid to the formation of neces-sary knowledge and skills of enterprise employees and future specialists in the field of electric power engineer-ing with the help of additional educational program. The article considers the efficiency of using the additional educational programs and reveals their potential for improving the quality of education. In conclusion, the arti-cle reveals the main principles of successful implementation of an additional educational program.
A Semiotic Analysis on FIFA World Cup 2022 Qatar Memes
Authors: Panjaitan Amos Ruben , Pasaribu Arsen Nahum
Published: October 2023

Memes have become a unique way of conveying messages and sharing experiences in today's social media era. The FIFA World Cup is one of the biggest sporting tournaments in the world, and its audience, which is divided into various regions and circles, has attracted researchers to make it an object. The aims of this semiotic analysis study are to determine the signifier and the signified, as well as the denotation and connotation, as well as the meaning of FIFA World Cup Qatar 2022 memes. The descriptive qualitative method is being used in the study. To analyze the data, the researchers applied Roland Barthes' theory. Memes are classified as signifiers and signified, which can be expressed verbally or visually. The researchers also explained the denotative and connotative interpretations of the 2022 FIFA World Cup in Qatar. The writers selected four memes for this analysis that talked about watching experiences, trolling the fans and players, and giving thoughts about the FIFA World Cup 2022 Qatar tournament. The results show that the signifiers in the memes were very random and unique, such as the heartbeat display in the first image, scientists in the second image, actors in the third image, scientists, and cartoon characters with flags in the last image. These signs certainly have objective or literal meanings (denotation) and subjective or other meanings (connotation).  Most of the connotational meaning from memes that have been analyzed focuses on sharing the experience of watching the FIFA World Cup 2022 competition and also trolling the football supporters or even the players that participated
The Implementation of 15-Minute Extensive Reading Approach As School Literacy Movement Activity: Students' Perceptions
Authors: Nizma Nizma , Kusumawardani Irene Nany
Published: October 2023

The low rate of Indonesian students’ literacy skills need to be deliberated more. Responding to this issue, the government created the school literacy movement program to improve Indonesian students’ literacy. The aim of this study is to investigate the implementation as well as the students' perceptions towards 15-minute extensive reading as school literacy movement (GLS) activity in the classroom. This study employed a qualitative method which applied descriptive case study design. The research was conducted at SMP Brawijaya Smart School Malang. The instruments were observation notes and interview guidelines. The interview involved two students who have been undergoing extensive reading activity at school. The collected data were analysed by using interactive analysis model which was carried out in four stages, namely collecting data, data reduction, data display, and conclusion drawing. The findings showed that the implementation of 15-minute extensive reading approach as school literacy movement in SMP Brawijaya Smart School Malang was held quite well by involving and reflecting 9 of the 10 principle of extensive reading as well as two stages of the school literacy program (GLS) namely habituation and development. The findings also revealed that the implementation of 15-minute extensive reading approach as school literacy movement activity is categorically helpful for SMP Brawijaya Smart School Malang students’ literacy and second language acquisition.
The Combination of British Parliamentary Debate and Peer Assessment in Teaching Speaking
Authors: Rasyid Asriadi
Published: October 2023

The main problems of this research were how to improve the speaking ability of EFL students converting grammar, vocabulary, pronunciation, discourse, and strategies. therefore, how to encourage them to use English.  This research aimed to see whether the combination of British Parliamentary Debate and Peer Assessment may enhance the speaking ability of EFL students. A quasi-experimental method with non-equivalent group design was carried out in this research. The population was the third semester of English Department students at Universitas Muhammadiyah Parepare. Two classes from the population, representing the experimental class and the control class, were selected using the cluster random selection technique as the study's sample. This research used an interview test with a variety of themes as its instrument. Pre-test, treatment, and post-test were the three steps that made up the data collection processes. The data that obtained by the test were then submitted to a quantitative analysis. The research findings demonstrate that the experimental class students' speaking abilities were better to those of the control class. The data from the experimental class showed that the students' mean score was higher compared to the control class (59,68 > 49,06). In conclusion, the combination of British Parliamentary Debate and Peer Assessment was improved the students’ speaking ability.
تقييم التطوير الاداري لدى الأندية الرياضية في محافظة نينوى من وجهة نظر اعضاء الهيئات الادارية
Authors: خالد احمد محمد
Published: October 2023

- بناء مقياس  التطوير الاداري  للأندية الرياضية في محافظة نينوى من وجهة نظر اعضاء الهيئات الادارية وكذلك التعرف على التطوير الاداري للأندية الرياضية في محافظة نينوى من وجهة نظر اعضاء الهيئات الادارية فيها، اشتمل مجتمع البحث على اعضاء الهيئة الادارية للأندية الرياضية في محافظة نينوى، والذين تم اختيارهم بالطريقة العمدية لتحقيق اهداف البحث، والبالغ عددهم (230) عضو هيئة ادارية، اذ حاول الباحث استخدام اسلوب الحصر الشامل في اختيار افراد المجتمع لتحقيق اهداف البحث، وبناء مقياس متكامل من جميع الجوانب.

اما عينة البحث (عينة بناء المقياس) فقد تمثلت بأعضاء الهيئات الادارية للأندية الرياضية في في محافظة نينوى، اذ تم الحصول على إجابات (160) اداريا، وذلك بعد استبعاد عينة الثبات والتجربة الاستطلاعية للمقياس  وبعض الاستمارات غير مكتملة الإجابة، وبذلك بلغت نسبة عينة البحث (69%) من المجتمع الكلي للبحث.

وقد بلغ المقياس بصورته النهائية من (44) فقرة وذلك بعد حذف (6) فقرة حسب أسلوبي المجموعتين المتطرفتين والاتساق الداخلي.

واستنتج الباحثان ما يأتي:

- بناء مقياس  التطوير الاداري  للأندية الرياضية في محافظة نينوى من وجهة نظر اعضاء الهيئات الادارية ، والذي يتكون من (44) فقرة، تتمتع بالصدق والثبات.

- امتلاك الاندية الرياضية في محافظة نينوى التطوير الاداري.

ويوصي الباحثان بما يأتي:

اعتماد المقياس المعد في معرفة التطوير الاداري للأندية الرياضية في محافظة نينوى من وجهة نظر اعضاء الهيئات الادارية لهذه الاندية الرياضية في محافظة نينوى.

إجراء دراسة ارتباطية بين درجة عضو الهيئة الادارية في المقياس المعد في هذا البحث وبين ترتيب الاندية الرياضية حسب البطولات التي تشارك بها هذه الاندية.
تأثير تمرينات مهارية بأسلوب التدريب الضاغط في بعض المهارات الاساسية والقدرتين الهوائية واللاهوائية للاعبي كرة القدم للصالات
Authors: Hamdoon younus Mahmood
Published: October 2023

The research aims to reveal the effect of skill exercises in the pressure training style on some basic skills and the aerobic and anaerobic capacities of futsal players. The researcher used the experimental method for its suitability and nature of the research, and the experiment was implemented on a sample of the players of the Al-Mashreq Al-Mustaqbal Sports Club in futsal football for the youth category for the year (2020-2021), whose number is (16) players. They were chosen by the intentional method and divided randomly into two groups (experimental and control) and by (8) players for each group, and homogeneity was achieved in the variables (age, height, mass) as well as conducting equivalence between the two research groups in physical characteristics, basic skills, and aerobic and anaerobic capacities. The experimental design, which is called the design of the randomly selected control group with two pre and post tests, and the researcher used (the arithmetic mean, standard deviation, coefficient of variation, coefficient of torsion, t-test for related samples, t-test for independent samples as statistical means The researcher concluded that the skillful exercises by the pressure training method implemented by the experimental group achieved a development in all basic skills and the aerobic and anaerobic capacities of the players of the experimental group. The experimental group that carried out the skill exercises using the pressure training method developed better than the control group in basic skills and anaerobic capacity, and did not achieve superiority in aerobic capacity, by comparing the results of the post-tests of the two groups.
تأثير برنامج أرشادي في تحسين التهيئة النفسية وسرعة ودقة (اخماد ومراوغة والمناولة ) لدى لاعبي كرة القدم للصالات في اندية محافظة ميسان
Authors: ناجي فهد اسيل
Published: October 2023

هدفت هذه الدراسة اعداد مقياس التهيئة النفسية و بناء برنامج أرشادي في تحسين التهيئة النفسية وسرعة ودقة  (اخماد ومراوغة والمناولة ) لدى لاعبي كرة القدم للصالات في اندية محافظة ميسان و التعرف على التهيئة النفسية وسرعة ودقة (اخماد ومراوغة والمناولة ) لدى لاعبي كرة القدم للصالات في اندية محافظة ميسان و التعرف على تأثير البرنامج الارشادي على التهيئة النفسية   وسرعة ودقة (اخماد ومراوغة والمناولة ) لدى لاعبي كرة القدم للصالات في اندية محافظة ميسان . واستخدمت الباحثة المنهج التجريبي لملائمة مع مشكلة البحث. وتتمثل مجتمع البحث  من لاعبوا اندية ميسان/محافظة ميسان   البالغ عددهم 126وتم اختيار عينة البحث بطريقة عمدية  . وتم تطبيق البرنامج الارشادي على عينة البحث  وبعد جمع البيانات عولجت باستخدام البرنامج الاحصائي spss. وأوصت الباحثة حث المدربين وانتباه على ان يكون هناك بعض ضعف في بعض المهارات للاعبين  ليس من الضروري هو امكانيه الضعف هو اسباب في القابليات البدنية  ممكن ان يكون هناك حاله نفسيه يمر بها اللاعب تؤثر وتأثر في حالة النفسية.
The effectiveness of an indicative training program in dealing with psychological stress ‎among football players
Authors: Abd Majid , Muhammad Anbras ‎ , Ahmed Abdel Wadood
Published: October 2023

The aim of the research is to prepare a psychological program and measure psychological stress for football players, to identify the degree of stress among young football players, and to identify the differences between the tribal and remote tests to reduce stress among young football players, and the researchers adopted the experimental research method by designing the experimental group on A sample of the players of the Youth Football League Youth Club of (175) players, so the number of the main sample is (23) players, with a percentage of (30.666%) from their community of origin, which represents the football league players in Salah al-Din Governorate for the sports season (2019/2020), as The researchers determined topics for the sessions of the psychological training program for research, and this program was applied at a rate of two sessions per week, and the duration of each training session was (40-45) minutes, and the number of psychological training sessions was (14) sessions, and the researchers processed the results of the study with the (SPSS) program, and concluded The researchers found that the application of the psychological training program helps in decreasing the level of psychological stress surrounding the players, which leads to an improvement in the sports performance of football players, and they progress in the level of those who train without it. The researchers recommended that it is necessary to implement the psychological training program to relieve the psychological pressures of football players and work to remove the players from the pressures surrounding them, making them progress at the positive level of the program.
Social and occupational motivations of students in the College of Physical Education and ‎Sports Sciences at the University of Anbar
Authors: Suleiman Thabit
Published: October 2023

The study aimed to identify the most important motivations of students in the College of Physical Education and Sports Sciences at Anbar University (social and professional).  And the professional from a scale prepared by Mohamed Ibrahim Al-Dhahabi, Mansoura University, 2010.  The results were that the most important social motives are the assertion that the personality is able to modify the attitudes and behaviors of students, followed by the motive of achieving a better social position, while the most important professional motive is increasing the chances of obtaining external work, followed by the multiplicity and diversity of job opportunities for graduates of physical education and sports sciences.  The researcher recommended the necessity of investing students' motives and directing them in the light of those motives in academic and vocational preparation, as well as adopting these measurements in identifying students' attitudes towards studying in physical education and sports sciences.
" The role of information sources and services in making public policies
Authors: Salam jasem Abdullah  , Tamem e. sadk  , Hussain A. Hussain
Published: October 2023

Social media has become an important aspect of societies, and its role is no longer limited to personal and social communication among individuals, but it has also taken on political roles. Words such as "Facebook", "Twitter", and "YouTube" have become common in the political arena since the Arab Spring revolutions, which some called "the Facebook revolutions" due to the significant role these sites played in delivering the message of the revolution to the world, creating a sense of organization and management for the revolution's progress under the security control and intense surveillance imposed by the regimes."
Leveraging Machine Learning for Generating and Utilizing Motion Primitives in Adversarial Environments
Authors: Goddard Zachary C. , Rajasekar Rithesh , Mocharla Madhumita , Manaster Garrett , Williams Kyle , Mazumdar Anirban
Published: October 2023

Motion primitives enable fast planning for complex and dynamic environments. Adversarial environments pose a particularly challenging and unpredictable scenario. Motion-primitive-based planners have the potential to provide benefit in these types of environments. The key challenge is to design a library of maneuvers that effectively capture the necessary capabilities of the vehicle. This work presents a primitive-based game tree search to solve adversarial games in continuous state and action spaces and applies a reinforcement learning framework to autonomously generate effective primitives for the given task. The results demonstrate the ability of the learning framework to produce maneuvers necessary for competing against adversaries. Furthermore, we propose a method for learning a model to estimate the state-dependent value of each motion primitives and demonstrate how to incorporate this model to increase planning performance under time constraints. Additionally, we compare our primitive-based algorithm against forward simulated methods from existing literature and highlight the benefits of motion primitives.
The Nature of Schadenfreude in Consumption Contexts: A Systematic Literature Review
Authors: OKAN Mehmet , ALTINİĞNE Neşenur , IŞIKSAL Didem Gamze
Published: October 2023

This study aims to present a holistic perspective on schadenfreude in the context of consumption and to provide a framework that theoretically explains the social-psychological mechanisms behind consumers' schadenfreude. For this purpose, a systematic literature review integrating studies on schadenfreude in the context of consumption has been conducted in our current study. A systematic literature review that integrates studies on schadenfreude in consumption contexts is employed. Drawing on appraisal theory and social comparison framework, a general overarching framework explaining the market and consumption-related mechanisms that elicit schadenfreude and its consumer and brand-related outcomes is suggested. We argue that the elicitation of consumer schadenfreude is dependent on the appraisal of social comparisons. In this framework, the roles of the market and consumption-related factors behind the schadenfreude elicitation, uncovering the general appraisal structure behind this emotion are explained. By doing this, implications for the firms on how to manage this emotion in the marketplace and the potential consequences of schadenfreude emotion on different types of brand-related outcomes are provided.
System analysis as a tool for implementing low–waste and waste–free production at oil and gas industry enterprises
Authors:   Yuri Gagarin State Technical University of Saratov, Kulbyakina A. V. , Savelyeva A. I. ,   Yuri Gagarin State Technical University of Saratov, Ozerov N. A. ,   Yuri Gagarin State Technical University of Saratov, Batrakov P. A. ,   Omsk State Technical University
Published: October 2023

The introduction of low–waste and waste–free technologies is an actual development direction for oil and gas enterprises, in particular for oil refineries. Development of methodological approaches to the analysis and synthesis of complex energy systems in order to increase the efficiency and environmental safety of the objects under study through the introduction of low–waste and waste–free technologies, the implementation of technological cycles close to closed. The solution of the task is carried out in accordance with the basic principles of the system analysis of complex objects, in stages: analysis of the structure of the object using the decomposition–aggregation approach; determination of internal and external links between the elements of the system; determination of the regularities of the functioning of the object and the complex of influencing factors. A block–hierarchical structure of an oil refining enterprise has been developed, which establishes quantitative and qualitative links between the elements of the system at all levels of the hierarchy. A system of performance indicators is proposed, in accordance with which an assessment is made of the current state of the object under study. The most energy–intensive production facilities of an oil refining enterprise have been determined, their exergy balances, have been calculated. The analysis made it possible to assess the potential for increasing environmental and energy efficiency, the main directions for the implementation of low–waste and waste–free technologies. Science–based directions for improving environmental safety and energy efficiency of the object of study are determined. Several options for schemes are proposed, an assessment of the energy and technical and economic efficiency of the integration of the proposed solutions into the energy complex of oil refineries is carried out. The results obtained confirm the feasibility of integrating the proposed scheme in an existing enterprise.
Modernization of the load gripping device for forestry industry
Authors:   Industrial University of Tyumen, Korolevskikh A. N. , Dvinskaya O. A. ,   Industrial University of Tyumen, Bogdanova E. A. ,   Industrial University of Tyumen
Published: October 2023

The article proposes to install toothed plates on the contact surfaces of a foreign-made friction-clamping load-gripping device. The modernization of the friction-clamping load-gripping device is designed to use the device when moving goods from wood. The need for modernization is substantiated. The parameters of the gear plate are determined. The reliability of the upgraded friction-clamping loadgripping device is estimated. The article will be useful to engineers and researchers working on reverse engineering of foreign-made industrial equipment.
Design and development of Cartesian propulsion system of the autonomous docking module for target acquisition
Authors:   Omsk State Technical University, Trushlyakov V. I. , Yudintsev V. V. ,   Omsk State Technical University, Urbansky V. A. ,   Omsk State Technical University, Onishchuk S. Yu. ,   Omsk State Technical University, Klenin D. A. ,   Omsk State Technical University
Published: October 2023

The concept of building an orbital complex for operational interception of a target is proposed, including in its composition the method of ballistic construction of operational interception, recommendations to the design appearance of the Cartesian propulsion system of the autonomous docking module, functioning at the stage of close-in guidance during tether delivery from the upper stage to the target, at the stage of capture and transfer of the target to the disposal orbit as part of the rotating tether space system. As a criterion for selecting the Cartesian propulsion system design (fuel reserves, thrust of each chamber and their number, minimum change in the coordinates of the autonomous docking module center of mass over the entire interval of Cartesian propulsion system operation), the minimum mass of the autonomous docking module is taken. For comparison, two methods of constructing the ballistic scheme of target intercept are considered: the classical method, with the orbital complex entering the target orbit with zero relative velocities, and the method based on the use of rotating tether space system, with the orbital complex entering the target intercept orbit with velocities at the rendezvous point of up to 200 m/s.
Development of mathematical model of processes in gas generator with unitary fuel for powering turbine of liquid rocket engine
Authors:   Omsk State Technical University, Yakovlev A. B.
Published: October 2023

The article considers the dynamic model of a gas generator with control throttle of liquid rocket engine with pumping supply system and unitary fuel for powering the turbine. The system of dynamic equations describing the processes occurring in a single-component gas generator and a throttle valve is obtained. The mathematical model makes it possible to analyze and identify the main patterns of the influence of input quantities on the controlled quantity.
Mutations in the germline: How the mother repairs the father’s damaged genome
Authors: Schumacher Björn , Wang Siyao , Meyer David
Published: October 2023

Germline mutations can have a severe impact on genetic diseases, genome evolution and the fate of a species. The vast majority of inheritable mutations are passed on by the paternal genome. We discovered how paternal DNA damage is repaired by maternal repair leading to the inheritance of structural variants.
APPLICATION OF PEEK: A FUTURE REVOLUTION IN PROSTHODONTICS
Authors: Pravin Kumari Sindhu , Prasanna Bibhuti , Chatterjee Ujjal , Sinha Neeta , Mandal Nagbhushan , Roy Sumit Kr
Published: October 2023

The aim of this study is to review polyether ether ketone (PEEK), its characteristics and use in prosthodontics. Polyetheretherketone (PEEK) is one of the most used semi-crystalline thermoplastic polymers in aeronautics and aerospace. This new material matches the technological advancements and patient's desires for a natural and aesthetic look, thanks to its strength, superior biocompatibility, low plaque affinity and aesthetics characteristics close to the desired natural dental structure. PEEK has good mechanical and electrical properties such as resistance to high temperature and resistance to hydrolysis. Satisfactory findings have also been observed when used in knee, hip, spine and other implants.

PEEK polymer is suitable to use in prosthodontics. PEEK can fulfil the long-term demand of an ideal multipurpose material for biomedical applications. However, there are not enough statements about complications, biofilm formation on PEEK surface and its resistance to compression. More research should be done to find out the results.
NEWER GINGIVAL RETRACTION MATERIALS: A REVIEW
Authors: Vaidya Neha , Kishlay Komal , Roy Sumit Kumar , Rani Pooja
Published: October 2023

The factors responsible for the longevity and aesthetics of a restoration are intimately linked to the gingival and periodontal tissues. The placement of any restoration placed in close proximity to the gingival tissues requires adequate access and isolation, for which various gingival retraction methods and materials are available. These are classified broadly as mechanical, chemo-mechanical, cordless and surgical techniques. This review focuses on the rationale behind gingival retraction and a discussion of the newer modalities developed in this regard.
Clinical and functional results of idiopathic macular holes treatment with foveal internal limiting membrane sparing
Authors:   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Shpak A.A. , Avakyan F.A. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation, Kolesnik A.I. ,   S. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation
Published: October 2023

Purpose. To evaluate clinical and functional results of originally developed technique of preserving foveal internal limiting membrane (ILM) in the surgical treatment of idiopathic macular holes (IMH) with a minimum diameter of less than 500μm in comparison with standard technique that does not require preservation of the foveal ILM. Material and methods. This study included 75 patients (75 eyes) with IMH with a minimum diameter of less than 500μm and complaints manifestation of no more than 12 months. 35 patients (35 eyes, control group) were operated using standard technique. In 40 patients (40 eyes, main group) surgical intervention was performed using originally developed technique of foveal ILM sparing. Results. The anatomical closure of the IMH after surgery was obtained in all 75 patients. In two patients (one in the main and one in the control groups) within 1 month after surgery, a recurrence of IMH developed. All functional results in the main group had significant positive dynamics if compared with control group: increase in central and general light sensitivity, spatial contrast sensitivity, low-contrast visual acuity without and with glare. The increase in the best corrected visual acuity was also greater in the main group, but the difference from the control group was not significant. Conclusion. Originally developed technique of preserving the foveal ILM is highly effective in the surgical treatment of IMH with a minimum diameter of less than 500μm. In comparison with the standard technique of surgery with the removal of the ILM, this technique allows to achieve higher functional results with an equal frequency of positive anatomical outcomes. Key words: idiopathic macular hole, ILM peeling, surgical treatment, foveal sparing, ILM peeling, light sensitivity, contrast sensitivity, low contrast visual acuity
PECULIARITIES OF PAIN MANAGEMENT IN PATIENTS WITH GUNSHOT WOUNDS IN MEDICAL AND NURSING TEAMS
Authors: KUCHYN YU.L. , POSTERNAK G , GOVSEEV D.O.
Published: October 2023

Summary. During the Anti-Terrorist Operation/Joint Forces Operation in eastern Ukraine, gunshot wounds account for about 74% of the casualties. Such injuries are accompanied by high intensity pain. At the stage of treatment in medical and nursing teams, effective pain management is important, because in the long term, more than 70% of these patients suffer from chronic pain. Therefore, studying the features of pain management at this stage of treatment can play an important role in improving the results of their treatment.

Objective. To study the peculiarities of pain treatment in patients after gunshot wounds at the stage of treatment in medical and nursing teams.

Methods. Study of patients with gunshot and mine-blast wounds. A visual analog scale was used to study the intensity of pain. The results of the study were analyzed using the EZR v.1.35 package (R statistical software version 3.4.3, R Foundation for Statistical Computing, Vienna, Austria). The Shapiro-Wilk, Mann-Whitney, Friedman, and Bonferroni correction criteria were used.

Results. The results of the study of 769 patients after gunshot wounds indicate that: 1) upon admission to the nursing teams (before anesthesia), the VAS pain intensity in group 1 was statistically different from group 2 (p<0.001) – in group 2, this indicator was higher; 2) the dynamics of VAS pain intensity during 2 days of observation shows no difference between the observation groups: 1 day – p=0.636, 2 days – p=0.465; 3) intervals between analgesia during the 1st day indicate a statistically significant difference between the groups (p=0.001), and on the 2nd day of observation no such difference was observed (p=0.818).

Conclusion. At the time of admission to the medical and nursing team, the pain intensity according to the VAS was 7-8 points, which meets the criteria for high intensity. This intensity of pain is likely to affect the chronicization of pain in the future. The number of injured anatomical areas of the body is important for determining the tactics of pain treatment in patients with gunshot wounds, because the intervals between the administration of painkillers indicate that those patients who were injured in 3 or more anatomical areas of the body more often needed the administration of painkillers.
MULTIMODAL LOW-OPIOID GENERAL ANESTHESIA FOR ELECTIVE CAESAREAN SECTION
Authors: PADALKO A. , DZIUBA D.
Published: October 2023

Introduction: The frequency of general anaesthesia during caesarean section is up to 15 %. The main disadvantages of general anaesthesia during caesarean section are: a high percentage of consciousness during surgery and a pronounced hemodynamic reaction to surgical trauma. The most dangerous part of this surgical intervention is the period before the birth of a child.

Purpose: To compare the "routine" technique of total intravenous anaesthesia with artificial lung ventilation for elective caesarean section and multimodal low-opioid general anaesthesia.

Materials and methods: Our study is based on an examination of 60 patients. All patients were divided into 2 groups. The first group is a "routine" method of general anaesthesia, the second group is multimodal low-opioid general anaesthesia. Intravenous forms of medical drugs were used as adjuvants: paracetamol (1000 mg), clonidine (100 μg), 30 minutes before surgery and intravenous infusion of lidocaine (after the childbirth). Perioperative monitoring and treatment were based on the recommendations of the Enhanced Recovery After Caesarean Section and the American Association of Anaesthesiologists, the bispectral index and determination of the stress-induced substances (glucose, cortisol) blood levels were added. The newborns were evaluated with the Apgar scale and umbilical venous blood gas analysis was carried out. In the postoperative period, the intensity of pain, the time of patient activation and transfer from the intensive care unit were evaluated. The two-sided Student's t-test was used for statistical data processing (p value = 0.001; t > ± 3,466).

Results: The obtained data showed the presence of statistically significant differences between the two groups: mean blood pressure (t = 18.25); heart rate (t = 9.2); bispectral index (t = 5.9); assessment of newborns with the Apgar scale at 1 minute (t = - 4.2); parameters of umbilical venous blood gas analysis (t = - 6,5); glucose (t = 14.5); cortisol (t = 26,2); patient activation time (t = 8.12); the time of transferring from the intensive care unit (t = 8.67); pain assessment on a numerical rating scale (t = 13.4); using of opioids intraoperatively (t = 9.9); using of intravenous anaesthetics (t = 5.25); using of opioids after surgery (t = 8.78). Better indicators were determined in the multimodal low-opioid general anaesthesia group.

Conclusions: Based on the obtained results, the multimodal low-opioid general anaesthesia has reasonable (statistically significant) advantages over the "routine" technique of total intravenous anaesthesia with artificial lung ventilation for elective caesarean section.
Honeypot-as-a-Service dengan Kubernetes Cluster
Authors: Purwoko Rahmat , Priambodo Dimas Febriyan , Permana Ghiffari Adhe , Saptomo Wawan Laksito Yuly , Siswanti Sri , Hasbi Muhammad
Published: October 2023

Honeypot merupakan salah satu strategi yang digunakan untuk melindungi jaringan dari serangan siber. Honeypot digunakan untuk menarik penyerang agar menyerang honeypot tersebut daripada perangkat-perangkat jaringan. Namun, penggunaan honeypot masih jarang terjadi di tingkat korporat maupun individu karena membutuhkan tenaga profesional dan infrastruktur khusus untuk mengelolanya selama implementasi. Berdasarkan permasalahan ini, peneliti mengusulkan solusi Software-as-a-Service  (SaaS) yang disebut Honeypot-as-a-Service  (HaaS). HaaS adalah layanan honeypot berbasis cloud yang dikelola oleh orkestrasi kontainer Kubernetes Cluster. Penggunaan Kubernetes Cluster dirancang untuk mengotomatiskan konstruksi, penjadwalan, pemeliharaan, dan penghapusan honeypot berkontainer. Otomatisasi ini dimaksudkan untuk membantu pelanggan yang ingin menggunakan sistem pertahanan berbasis honeypot dalam jaringan mereka tanpa harus menjalankan honeypot mereka sendiri. Pengguna dapat mendaftar akun dan mengonfigurasi honeypot menggunakan dashboard yang langsung terhubung ke cloud honeypot. Sistem ini sedang dikembangkan di lingkungan pusat data Departemen Keamanan Siber dari Politeknik Siber dan Sandi Negara, yang dikelola dengan manajemen virtualisasi Proxmox Virtual Environment. Komponen-komponen dari sistem HaaS terdiri dari honeypot di Kubernetes Cluster, HaaS-proxy, dan HaaS Dashboard. Sistem yang telah dibuat kemudian diuji availability, performance, functionality, and scenario. Hasil evaluasi sistem menunjukkan bahwa sistem HaaS membutuhkan pengembangan lebih lanjut. Meskipun ketersediaan dan performa sistem HaaS telah memenuhi kriteria layanan berbasis cloud, namun fungsionalitas sistem tidak memenuhi standar layanan SaaS secara umum. Namun, honeypot dibangun untuk memenuhi tujuan honeypot dalam menarik penyerang.
Analisa Dini Gangguan Disleksia Anak Sekolah dengan Metode Backpropagation
Authors: Yanti Novi , Setiawan Adil , Defit Sarjon
Published: October 2023

Disleksia sering disalah artikan sebagai kebodohan atau kemalasan pada anak. Gejala disleksia dikenal dengan gangguan belajar yang meliputi mengenal huruf, mengeja, membaca, dan menulis. Meskipun gejala disleksia tidak terlihat dengan jelas, kondisi ini dapat berdampak pada perkembangan pola belajar anak. Tujuan penelitian adalah untuk mengidentifikasi gejala disleksia sedini mungkin agar tidak mengganggu perkembangan belajar pada anak. Selain itu, penelitian juga bertujuan untuk mengevaluasi keakuratan teknik yang digunakan. Analisa menggunakan metode jaringan syaraf tiruan dengan teknik backpropagation dengan memberikan nilai bobot, sehingga dapat memberikan nilai input dengan benar. Penelitian menggunakan 150 dataset, 40 variabel input dan 40 lapisan tersembunyi. Keluaran yang diharapkan mencakup disleksia atau non-disleksia. Hasil implementasi dan pengujian untuk data latih dan data uji terbaik adalah 90:10. Dengan nilai epoch maksimum 5000 dan nilai error target 0,001. Metode backpropagation dapat memberikan hasil akurasi terbaik 100% pada learning rate 0,5. Sehingga metode backpropagation dapat dengan baik mendeteksi gangguan disleksia pada anak sejak dini.
Sistem Penilaian Jawaban Singkat Otomatis pada Ujian Online Berbasis Komputer Menggunakan Algoritma Cosine Similarity
Authors: Kurniadi Dedy , Gernowo Rahmat , Surarso Bayu , Wibowo Adi , Warsito Budi
Published: October 2023

Penggunaan teknologi di bidang pendidikan sekarang ini sedang trending ke arah penilaian secara otomatis, namun penilaian secara otomatis ini memiliki permasalahan yaitu belum bisa mengkoreksi jawaban teks singkat secara otomatis, selain itu pada saat ini juga belum tersedia platform yang bisa mengkoreksi jawaban singkat secara otomatis, penilaian jawaban teks singkat ini membutuhkan waktu koreksi yang lama dan hasil penilaian yang tidak konsisten jika koreksi dilakukan oleh manusia, pada penelitian ini diusulkan sistem yang mampu mengkoreksi ujian peserta didik pada bagian jawaban singkat secara otomatis atau disebut dengan Automated Short Answer Grading (ASAG) dengan menggunakan metode cosine similarity, tahapan yang dilakukan adalah melakukan ekstraksi pada dua variabel inputan yaitu teks pada jawaban peserta didik dan teks pada kunci jawaban yang dilakukan dengan ekstraksi teks casefolding, tokenizing, stopword removal, setelah tahapan tersebut dilakukan kemudian dihitung nilai similarity antara kunci jawaban ujian dengan jawaban peserta didik apakah jawaban peserta didik sama dengan kunci jawaban atau tidak, dengan menggunakan skor yang dinilai otomatis menggunakan sistem, dihasilkan similarity antara jawaban peserta didik dengan kunci jawaban rata-rata sebesar 85,4%, untuk menguji korelasi koreksi jawaban peserta didik dengan sistem dan koreksi yang dilakukan oleh manusia maka dilakukan uji korelasi antara hasil penilian yang dilakukan oleh sistem dengan hasil penilaian yang dilakukan oleh manusia (instruktur) dengan menggunakan kendall’s w value menghasilkan nilai w antara instruktur 1 dengan sistem sebesar 0,885 dan instruktur 2 dengan sistem sebesar 0,883 dengan nilai chi square sebesar 135,4 dan 133,8 dengan p sebesar 0,0001, hasil tersebut menunjukkan ASAG memiliki korelasi yang tinggi dan sistem ASAG ini bisa melakukan penilaian secara otomatis.
Role of electrolyte pH on water oxidation for iridium oxides
Authors: Liang Caiwu , Katayama Yu , Tao Yemin , Morinaga Asuka , Moss Benjamin , Celorrio Verónica , Ryan Mary , Stephens Ifan , Durrant James , Rao Reshma
Published: October 2023

Understanding the effect of non-covalent interactions of intermediates at the polarized catalyst-electrolyte interface on water oxidation kinetics is key for designing more active and stable electrocatalysts. Here, we combine operando optical spectroscopy, X-ray absorption spectroscopy and surface-enhanced infrared absorption spectroscopy to probe the effect of non-covalent interactions on OER activity of IrOx in acidic and alkaline electrolyte. Our results suggest the active species for OER (Ir4.x+-*O) binds much stronger in alkaline compared with acid at low coverage, while the repulsive interactions between these species is higher in alkaline electrolyte. These differences are attributed to the larger fraction of water within the cation hydration shell at the interface in alkaline electrolytes compared to acidic electrolytes, which can stabilise oxygenated intermediates and facilitate long-range interactions between them. Quantitative analysis of the state energetics shows that although the *O intermediates bind more strongly than optimal in alkaline electrolyte; the larger repulsive interaction between them results in significant weakening of *O binding with increasing coverage, leading to similar energetics of active states in acid and alkaline at OER-relevant potentials. By directly probing the electrochemical interface with complementary spectroscopic techniques, our work goes beyond conventional computational descriptors of OER activity to explain the experimentally observed OER kinetics of IrOx in acidic and alkaline electrolytes.
Automated statistical analysis of Raman spectra of nanomaterials
Authors: Martín Natalia , Eaton Matthew , Moreno-Da Silva Sara , Naranjo Alicia , Perez Emilio
Published: October 2023

Both at the academic and the industrial level, material scientists are exploring routes for mass production and functionalization of graphene, carbon nanotubes (CNT), carbon dots, 2D materials, and heterostructures of these. Proper application of the novel materials requires fast and thorough characterization of the samples. Raman spectroscopy stands out as a standard non-invasive technique capable of giving key information on the structure and electronic properties of nanomaterials, including the presence of defects, degree of functionalization, diameter (in the case of CNT), different polytypes, doping, etc. Here, we present a computational tool to automatically analyze the Raman spectral features of nanomaterials, which we illustrate with the example of CNT and graphene. The algorithm manages hundreds of spectra simultaneously and provides statistical information (distribution of Raman shifts, average values of shifts and relative intensities, standard deviations, correlation between different peaks, etc.) of the main spectral features defining the structure and electronic properties of the samples, as well as publication-ready graphical material.
Infrared Free Induction Decay (IR-FID) of Non-Interfacial Origin Observed in the Interfacial Sum-Frequency Generation Vibrational Spectroscopy (SFG-VS)
Authors: Zhao Bojun , Peng Xingxing , Zhang Li , Cao Jingming , Yang Shuyi , Liu An-An , Wang Hongfei
Published: October 2023

We report the observation of infrared free induction decay (IR-FID) signal of the anti-symmetric modes around ~ 2350 cm-1 of the gaseous CO2 molecules in the air in the sum-frequency generation vibrational spectroscopy (SFG-VS) measurement from the gold surface. These signals appeared with time-dependent interference pattern in the 15-73 ps range and beyond after the time-zero of the SFG-VS process. The interference pattern was found to reflect the rotational coherence of the gaseous CO2 molecules. Similar IR-FID and rotational coherence was also observed for the symmetric and asymmetric stretching modes of gaseous H2O molecules in air. The gold surface in this case serves as the up-conversion agent with the visible pulse as the time-gate for the ultrafast IR-FID emissions. We tested this hypothesis by replacing the gold surface with a β-BBO (beta-barium borate, β-BaB2O4) and found a five orders of magnitude increase of the signal in the reflecting geometry. The up-conversion of the IR-FID radiation of non-interfacial origin into the SFG-VS signal also provides the mechanistic understanding of the ‘abnormal spectral bands’ in broadband SFG-VS induced by bulk absorption and refraction reported in the literature.