bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of Tilt Angle on The Performance of The Photovoltaic Systems for Different Row Spacing
Authors: AKSOY Muharrem Hilmi , İSPİR Murat , YEŞİL Emin
Published: September 2023

The optimum tilt angle for a photovoltaic (PV) system depends on the row spacing because it affects the amount of shading on the panels. This study modeled PV systems for four different panel row spacings of 2 m, 2.5 m, 3 m, and 4 m in a fixed 3000 m² area in Konya province, Turkey. For different panel row spacings, the system performances were compared using a constant tilt angle of 35°, expressed as a proper angle for PV installations at the considered location. In addition, the optimum tilt angle is found for four different cases in terms of electricity generation. In systems with 35° tilt angles at electricity were produced annually as 622.77 MWh, 566.49 MWh, 495.36 MWh, and 385.72 MWh, respectively, for panel row spacings of 2 m, 2.5 m, 3 m, and 4 m. In addition, these electricity productions are 6.19%, 4.41%, 2.56%, and 0.92% higher with optimum tilt angles as 1°, 15°, 21° and 27°. Similarly, the Performance Ratio (PR) values obtained with the optimum angles are 20.61%, 8.39%, 4.12%, and 1.44%, higher than the fixed tilt angle cases. According to the economic analysis, systems with a fixed tilt angle for these panel row spacings pay back themselves in 5.13, 4.67, 4.44, and 4.28 years, respectively, while systems at optimum angles pay back themselves in a shorter time by 5.83%, 4.26%, 2.49%, and 0.91%. Furthermore, the highest NPV/INV, IRR, and ROI values were obtained from the system with 3 m panel row spacing with the optimum tilt angle of 21° as 0.915, 20.42%, and 91.57%, respectively, which is techno economically found to be the most feasible case.
Short-stem hip arthroplasty in Australia and the Netherlands: a comparison of 12,680 cases between the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) and the Dutch Arthroplasty Register (LROI)
Authors: Van Veghel Mirthe H W , Hannink Gerjon , Lewis Peter L , Holder Carl , Van Steenbergen Liza N , Schreurs B Willem
Published: September 2023

Background and purpose: We compared the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) and the Dutch Arthroplasty Register (LROI) regarding patient, prosthesis, and procedure characteristics as well as revision rates for uncemented short-stem total hip arthroplasties (THAs).Patients and methods: All THAs with an uncemented short-stemmed femoral component performed between 2009 and 2021 were included from the AOANJRR (n = 9,328) and the LROI (n = 3,352). Kaplan–Meier survival analyses and multivariable Schemper’s weighted Cox regression analyses with data from 2009–2021 and 2015–2021 were performed with overall revision as endpoint.Results: In Australia, the proportion of male patients (51% vs. 40%), patients with ASA III–IV score (30% vs. 3.7%), BMI ≥ 30.0 (39% vs. 19%), and femoral heads of 36 mm (58% vs. 20%) were higher than in the Netherlands. Short-stem THAs in Australia and the Netherlands had comparable 10-year revision rates (3.4%, 95% confidence interval [CI] 2.9–4.0 vs. 4.8%, CI 3.7–6.3). Multivariable Cox regression analyses with data from 2009–2021 showed a higher risk for revision of short-stem THAs performed in the Netherlands (HR 1.8, CI 1.1–2.8), whereas the risk for revision was comparable (HR 0.9, CI 0.5–1.7) when adjusted for more potential confounders using data from 2015–2021.Conclusion: Short-stem THAs in Australia and the Netherlands have similar crude and adjusted revision rates, which are acceptable at 10 years of follow-up.
Management of common conditions of the musician: a narrative review for plastic surgeons
Authors: Chu Daniel , Eftekari Sahand C. , Nicksic Peter J. , Poore Samuel O.
Published: September 2023

Career-related injuries and disorders in professional musicians are prevalent across all their respective instruments and fields. They often endure long hours of intensive practice that demand high levels of precision, dexterity, and flexibility of their head, neck, hands, and upper extremities. Unlike the average patient, musicians are sensitive to even mild symptoms and deficits that can interfere with performance, which can potentially be career-threatening. Increasing attention to the care of musicians motivated performing arts medicine to tailor the practice to their individual and unique needs. Plastic surgeons are at the forefront of this practice; however, there are very limited reviews discussing plastic surgery management of the common injuries and disorders in musicians. This article reviews the most relevant literature of the past several decades regarding treatment modalities of the most common conditions endured by professional instrumentalists, with an emphasis on surgical considerations in the field of plastic surgery. A thorough literature search was performed for articles that encompass the interface between plastic surgery and musicians. We examined disorders of the head, ears, eyes, nose, throat, hands, and upper extremities including stress velopharyngeal incompetence, disruption of the embouchure, nerve entrapments, arthritis, traumatic injuries, focal dystonia, Linburg–Comstock syndrome, and overuse disorder. Overall, the goal of this review is to provide a summary of the existing and successful procedures performed to address prevalent musician conditions.
Evaluation of Safety and Anti-RBD IgG Sars Cov-2 after Indovac Administration in Depok
Authors: Harimurti Kuntjoro , Jasmin Harningtyas , Sekartini Rini , Aini Muhammad , Yuniar Irene , Indawati Wahyuni , Wirahmadi Angga
Published: September 2023

The WHO declared the COVID-19 pandemic on March 11, 2020, then several centres developed Covid-19 vaccines. The Indovac vaccine contains SARS-CoV-2 RBD antigen adjuvanted with Alum and CpG1018. This article reported Jakarta Centre Phase 1 trial results of the safety and immunogenicity of Indovac in Kota Depok. This study is a randomised, observer-blinded, active-control (Sinovac) clinical trial. The study included 175 healthy adults aged 18–70 and 75 participants were enrolled by the Jakarta centre. Two vaccine doses were given 28 days apart. Four vaccine formulas were tested. Safety evaluations included solicited and unsolicited adverse events (AE) up to 28 days post-injection. SARS-CoV-2 anti-RBD IgG was tested before, 14, and 28 days after second injection to determine immunogenicity. Most solicited AEs were injection site pain. Local pain was highest in the RLCL group after the first dose (38.62%) and RHCH after the second dose (23.08%). 13.33% and 6.67% of control group subjects experienced local pain after the first and second injections, respectively. RHCL has the highest seroconversion (100%) after two injections. Anti-RBD IgG responses increased (p<0.005) in all groups and plateaued 28 days after the second dose injection. In conclusion, Indovac was safe and immunogenic in Jakarta.
desenvolvimento da atenção voluntária:
Authors: Coelho Carolina Nicodemos , Lima Cárita Portilho de , Silva Célia Regina da
Published: August 2023

Este artigo propõe-se a apresentar aspectos essenciais das análises construídas a partir de uma pesquisa teórica que teve o objetivo de analisar as contribuições que a Pedagogia Histórico-crítica e a Psicologia Histórico-cultural apresentam em relação às potencialidades e possibilidades de que o ensino escolar e a atividade de ensino do professor promovam o desenvolvimento da atenção voluntária dos estudantes. Dessa forma, assumiu-se como objeto de estudo o desenvolvimento dessa função psicológica em sua dimensão cultural. As análises buscaram mostrar, nas produções da Psicologia Histórico-cultural e da Pedagogia Histórico-crítica, elementos acerca do desenvolvimento da atenção que possam auxiliar na concretização do objetivo apresentado por esta investigação, destacando a necessidade de considerar o materialismo histórico-dialético como perspectiva teórico-metodológica orientadora das teorias analisadas e também das análises propostas por este trabalho. O material empírico da investigação consistiu em artigos, teses e livros que discorrem sobre o desenvolvimento da atenção e o papel do ensino para tal desenvolvimento. Como síntese das dimensões essenciais identificadas por meio da análise das obras destaca-se a necessidade de compreender que o desenvolvimento das funções psicológicas humanas não se esgota em um processo de maturação biológica, mas articula e submete esta dimensão aos aspectos culturais, históricos e sociais do desenvolvimento humano, sendo que a adoção da Psicologia Histórico-cultural, como perspectiva teórico-metodológica para a organização do ensino e da atividade docente, mostra ser uma importante ferramenta para o enfrentamento da lógica medicalizante.
"Agriculture 4.0": Content Content and Conceptual Elements
Authors: Cheshev A. S. , Melenkin V. L.
Published: August 2023

The content features of the concept of "Agriculture 4.0" are considered, which significantly deter-mines the trends in the development of modern agricultural production systems. The author analyzes the prerequisites for the emergence of this concept, various theoretical approaches to its content, and targets for the practical implementation of its postulates. Considerable attention is paid to the con-sideration of the key elements that together form the technological basis of "Agriculture 4.0".
The Concept of "Remote Sensing of the Earth" and its Significance at this Stage of Development of Society
Authors: Ovchinnikova N. G. , Primakova A. S.
Published: August 2023

The system of remote sensing of the Earth (remote sensing) is becoming more and more part of human life every year and finds application in various industrial and scientific fields of activity. This article defines the concept of "remote sensing system", considers its basic principles and areas of application, as well as the need to use at the moment of the development of society.
The Importance of the Digitization Process for the Promotion of Cultural Heritage of the Republic of Serbia: Empirical and Statistical Findings
Authors: Sančanin Branislav , Penjišević Aleksandra
Published: August 2023

Timely, comprehensive, and continuous protection, as well as the use and presentation of authentic tangible and intangible cultural-historical heritage of a certain area can greatly contribute to the economic, ecological and social development of the community and the strengthening of the competitive position. Digitization should relax all previously known forms of cultural expression and enable access to the broadest audience and their participation in cultural life. This paper has the ambition to contribute to a more comprehensive appreciation of the digitization process, facilitate access to digital content and motivate new thinking about the continuous improvement of the availability of movable and immovable cultural assets, as well as intangible cultural heritage. A primary questionnaire was created in order to assess the views and opinions of the citizens of the Republic of Serbia on the importance of the digitization process for the promotion of cultural heritage. The research sample was an opportunistic, convenient sampling of residents of the Republic of Serbia from all 5 regions (n=138). The importance of the digitization process for the promotion and preservation of cultural heritage has been established. Modern technologies are insufficiently represented in the promotion and preservation of cultural heritage, while this attitude is supported by a slightly higher percentage of respondents with the highest level of education. The importance of the digitization process for the promotion and preservation of cultural heritage has been proven, and respondents with the highest level of education attach the highest degree of importance to it. The greatest contribution can be seen in the preservation of the national identity and cultural diversity of the national communities, of our region, with social networks being the media that can contribute the most to the promotion of cultural heritage.
Learning Through Games and Its Impact on the Development of Student’s Knowledge During the Pandemic Period
Authors: Havziu Besa , Barakovska Aneta , Memedi Lulzim , Ramadani Rasimi Teuta
Published: August 2023

Learning through play in the teaching process is a technique that has received a lot of attention since play itself increases the focus of students, and develops memory, creativity, and creative skills in students. However, the COVID-19 pandemic period was a very challenging period for every character included in the educational system, where many techniques used with physical presence were evaporated, or transformed in another form, as played through gamification. The objective of our research was to analyze the level and form of implementation of games as a teaching technique during COVID-19 in primary schools, among teachers N=120, students N=80 from I do 5th grade, and parents N=100 in Kosovo and North Macedonia. Results showed that there is a strong correlation of the implementation of games as a technique by parents and teachers in the implementation of the pandemic and the students learning and mental health, respectively their learning success has risen and their mental health was improved.
Designing a Multimodal Environment for Cognitive and Creative Activity in Pre-School Education – Competence of the Teacher
Authors: Dermendjieva Sofiq Hristova , Tsankov Nikolay
Published: August 2023

This article focuses on the formation of pedagogical competence for the design of multimodal educational environment, the functionality of which is the foundation of the cognitive and creative activity of the child in pre-school age. It problematizes the need for adequate professional reflection of the teacher in the context of the transgressive approach and highlights the parameters of organizing pedagogical interactions that utilize multimodality as a communication phenomenon. The understanding that the competence of the teacher for designing a multimodal environment as well as cognitive and creative activities develops as transgressive and is continuously created in the cultivation of new knowledge and skills, while expanding the cognitive and practical limits of the subject, is affirmed. Based on this affirmation, the thesis that if a child has entered the “communicative state” and has engaged in multimodal educational interactions, the child appropriates the social experience by forming a transgressive attitude of behavioral response.
Development of Interparticle Bonding during Sintering of Metal Powders with the Addition of Carbon
Authors: Egorov M. S. , Egorova R. V.
Published: September 2023

Introduction. Publications on sintered metal powder parts consider interparticle bonding in hot-deformed materials and features of low-alloy structural steels, as well as the use of carbon-containing materials. The authors of the presented article have previously investigated sintering in relation to structural changes in the material, described changes in physical and mechanical properties, reduction of oxides, recrystallization, etc. This paper shows the relationship of mechanical properties of powder steels with the parameters of intracrystalline bonding. The kinetics of its development during sintering is demonstrated for the first time. The study objective is to find out how sintering affects the interparticle bonding and structure of powder alloys with iron and carbon. The task is to study the technological modes of sintering samples from alloyed and pure iron powder to achieve the best mechanical characteristics.

Materials and Methods. The powders of the Höganäs company were sintered at a temperature of 900-1150 ºС for 0.5–2.5 hours. The protective gas medium (dissociated ammonia) made it possible to prevent oxidative and other sintering reactions. For static cold pressing, a hydraulic press 2PG-125 with a maximum force of 1250 kN was used.

Results. For the first time, the presence of intracrystalline bonding mechanisms with different intensity during sintering has been experimentally established. The dependences of the increment of the relative area of the contact surface on the duration of the isothermal exposure were constructed. With an increase in the sintering temperature to 1150 ºС and a holding time of more than 80 minutes, the contact surface area gradually increased. It was shown that the samples from the powder grades under consideration formed an intracrystalline bonding on the entire contact surface at 1150 ºС. Therefore, this technology can be recommended for practical use. The addition of graphite to the charge slows down the growth of the contact surface. At the same time, the molds from pure powder ABC100.30 and from Distaloy HP-1 powder showed differences. In the first case, with the addition of graphite to the charge, the contact surface developed more intensively than in the second one. The obtained results were recorded in the photo and visualized in the form of graphs.

Discussion and Conclusion. According to the results of mechanical tests, it is possible to estimate the proportion of the contact section of the molding with intracrystalline bonding. Its feature is the structural correspondence of the interparticle surface of the splice and the intergrain boundary. The value of this boundary is determined by comparing the relative area of the contact section with the intracrystalline bonding and the relative area of the contact surface. The possibilities of improving the quality of bonding of powder steels by increasing the temperature and time of their exposure during sintering are determined.
The Relationship Between Learning Outcomes Of Pastry And Bakery Courses With Students Entrepreneurial Interest Of Family Welfare Education Study Program
Authors: Zalukhu Yulisia , Yulastri Asmar
Published: August 2023

The background of this research is motivated by the high number of educated unemployment in Indonesia. This study aim to describe: 1) learning outcomes of pastry courses, 2) learning outcomes of bakery courses, 3) student entrepreneurial interest, 4) analyze the relationship between learning outcomes of pastry courses and entrepreneurial interest of family welfare education study program students majoring in culinary arts, 5) analyze the relationship between learning outcomes of bakery courses and entrepreneurial interest of family welfare education study program students majoring in culinary arts, 6) analyze the relationship between learning outcomes of pastry and bakery courses with entrepreneurial interest of family welfare education study program students majoring in culinary arts. This type of research is quantitative with a correlational approach. The research population was 196 students of family welfare education study program majoring in culinary arts class of 2018 and 2019. The sample is 66 people taken by Proportionate Random Sampling. The primary data collection technique uses a questionnaire distributed is measured using a likert scale. Then for secondary data using learning outcomes in pastry and bakery courses. The analysys requirement test was carried out with normality test and linearity test, then test the hypothesis using pearson product moment and multiple correlation coefficient analysis, and then test the significance of the\ correlation with the t test using help of SPSS 24.00 version. The results showed that: 1) learning outcomes of pastry courses students is in the excellent category (34,8%), 2) learning outcomes of bakery courses students is in the very good category (51,5%), 3) entrepreneurial interest students is in the medium category as many as 37 students, 4) there was a positive and significant relationship between learning outcomes of pastry courses and entrepreneurial interest of family welfare education study program students majoring in culinary arts with a correlation value of rxy0,621 means that it has a strong level of relationship, 5) there was a positive and significant relationship between learning outcomes of bakery courses and entrepreneurial interest of family welfare education study program students majoring in culinary arts with a correlation value of rxy 0,701 means that it has a strong level of relationship, 6)there was a positive and significant relationship between learning outcomes of pastry and bakery courses with entrepreneurial interest of family welfare education study program students majoring in culinary arts with a correlation value of 0,000 < 0,005.
“Stopping by Woods on a Snowy Evening”– A Quintessential Search for Truth and Nature-Elements
Authors: Sherfudeen Chagla Mohammad
Published: September 2023

Much of Robert Frost’s poems begin in delight and end in wisdom with a sharp clarity of life’s problems and approaches. Unlike Wordsworth, who worshipped nature, Robert Frost presented man as the focal point in most of his poems; his treatment of nature was a mixed feeling – both a sense of awe and mysticism. Man, nature, and environment are the three issues that come under repeated scrutiny in most of his poems, where he explores the effect of man on his environment and vice-versa. His portrayal of the situation where human beings grapple their way out patiently in their disagreeable mood – makes it more relevant in today’s context. Robert Frost reveals man – the nature dichotomy, the interrelationship between them to strike tragic depths though not communicative but always at loggerheads. This poem under study stretches afar and meanders into a quintessential search for truth and problems confronting man pitted against nature. The main aim of this article is to unravel his ambivalent views of nature, human character, and the mutual interrelationship between them with a specific focus on the poem “Stopping by Woods on a Snowy Evening” which, expresses profound clarification on human experience against the backdrop of nature. What is Robert Frost’s understanding of nature? Why is man endlessly confronting with nature/surroundings? Does man’s inner strength have any role to play are some of the questions that seek to find out in this study. A detailed analysis of this poem reveals man’s quest for truth in the contemporary consumeristic culture, offering little space for man to be in harmony with nature. Robert Frost universalized this encounter with nature
Comparing Two Chinese Translations of Amoretti 67 Based on Reception Aesthetics
Authors: Yuqing Chen , Chwee Fang Ng , Izat Zainal Zainor
Published: September 2023

Similar to other sonnets, Edmund Spenser’s Amoretti followed Petrarchan courtship but also demonstrated the unique Spenserian form. Spenser’s superb creative skills profoundly influenced his contemporaries and the English poets of later generations. Nevertheless, the translation of Spenser’s sonnets began exceedingly late in China with few results. Guided by the horizon of expectation in reception aesthetics, this study compared Cao Minglun and Hu Jialuan’s versions of Amoretti Sonnet 67 (Amoretti 67) based on their content, rhyme, and language style. The main question is to understand what horizons of expectations Hu and Cao’s translations reflect based on reception aesthetics, and how do Hu and Cao’s horizons fuse with the original author’s horizon of expectation? Guided by translators’ vision of expectation, Hu emphasized that both the content and style of the translation should be faithful to the original text. Thus, Hu’s translation is the closest to the original poem. Contrarily, Cao’s translation sought a balance between the original text and the translation. Cao aimed to maintain the content and format of the original poetry while capitalizing on the strengths of the Chinese language. Both Chinese versions embody their translator’s values. The significance of this study extends to its implications for Chinese readers delving into Spenser’s poetic world. Analyzing Cao and Hu’s diverse strategies empowers readers to navigate Amoretti 67’s depth, fostering understanding of Spenser’s artistry and the intricacies of translation.
Mechanism of protecting inheritance rights of minors under conditions of martial law in Ukraine
Authors: Barankevych А.
Published: September 2023

The article is devoted to the study of the peculiarities of protecting the inheritance rights of minors under conditions of martial law in Ukraine.It was established that the order of accepting inheritance was changed because of temporary occupation of the territories of Ukraine, migration processes, the need to protect personal data of Ukrainian citizens under conditions of martial law. It is stated that the current political situation complicates the ability to determine the size of heritage, the circle of heirs by law, to submit the application for accepting inheritance or disclaiming it.Considering the features of the legal status of minors, it was emphasized that the legal mechanism of protecting their inheritance rights have been strengthened and renewed by new elements under conditions of martial law.It is noted that the strengthening of such mechanism under conditions of martial law have occurred due to procedural changes and the change of the place of opening of the inheritance.On the basis of the analysis of the legislative provisions, the question of the deadlines for accepting inheritance in the context of the right of minors to refuse to accept the inheritance have been characterized.It is mentioned that under conditions of martial law the extension of the deadlines for accepting inheritance helped to protect the inheritance rights of minors because it provides additional time to determine the advisability of accepting inheritance.It is emphasized that changes regarding the place of opening the inheritance that were made by the legislator are determined, first of all, by the temporary occupation of Ukrainian territories by russian federation since February 19, 2014.It is noted that the innovations in the Civil Code of Ukraine regarding the determination of the place of opening the inheritance change the traditional for civil law rules of it understanding.It is also noted that such changes contribute the protection of the inheritance rights of minors, who may be abroad and have an ability to submit the application for accepting inheritance at the place of staying.The author singled out the advantages and disadvantages of these changes. It is payed attention to the bills that restore the preliminary confirmation of the place of opening the inheritance.The specific features of the accepting inheritance by minors who are abroad and the role of consuls in the protection of their inheritance rights are illustrated.It was established that the legislator tries to simplify the mechanism of protecting the inheritance rights of minors and the registration of the right to inheritance.
Approaches to research and classification of forest fuel
Authors: Hurzhii Roman V. , Sydorenko Serhii H. , Andrusyak Yuri I.
Published: September 2023

Abstract

Forests of Ukraine and the whole world in recent decades are regularly exposed to uncontrolled large wildfires. In Ukraine, huge forest areas were burnt in 2009, 2014 and 2015. In 2018, even the northern Scandinavian countries suffered from forest fires. Global climate change (increasing average temperature and aridity) is expected to contribute to the increasing number and area of fires in the future. The occurrence of fire is impossible without the presence of a source of fire, oxygen and fuel (so-called triangle of fire), but only forest fuel (FF) can be controlled by forestry treatment or by prescribed fire. Effective fire management is impossible without the knowledge of the distribution and qualitative characteristics of FFs. This article provides brief information on the history of research studies on FF in Ukraine and in the countries of the former Soviet Union and the factors that influence the formation of reserves and structure of FF. According to those research articles, the most important factors were soil and climatic conditions and characteristics of plantations. Information about the trends in accumulation of FFs in the Ukrainian pine forests is given. After the evaluation of the research works about FF, it was concluded that the study of fuel in Ukraine is fragmentary, and such studies should be continued, but necessarily after the unification of the methods of sampling and recording data about FF. In the future, this work allows the mapping of FF at the national level. The need to continue collecting field data from forest ecosystems is indicated by the use of new world-class methods for the development of fuel models, taking into account the local conditions.
A Few Notes on Art Auctions
Authors: Drabik Ewa
Published: September 2023

The art market, following the example of financial markets, is divided into a primary market, where works are traded directly from artists, and a secondary market that is mainly the auction market. Coronavirus disease 2019 (COVID-19) and galloping inflation have influenced the creation of a bull market in artwork. The high incomes of some buyers and inflation have influenced the emergence of the so-called ‘glittery’ art market. Works by neglected artists have ‘very much taken on a life of their own’: fantasy art, works by young poster artists, casting ‘nightmares’ – have been selling well for more than a year. People terrified of inflation are putting their money ‘in works of art’. The auction market dominates the primary market because anonymity makes it easier to enter the art market. The gallery market does not guarantee this anonymity. Very often, the auction market for works of art is used for money laundering. The purpose of this paper is to show that auction mechanisms are a good tool for the efficient allocation of goods and money in an area of galloping inflation and most art auctions are asymmetry.
Harmonic reduction of grid-connected multilevel inverters using modulation of variable frequency carriers
Authors: Tran Quang-Tho
Published: August 2023

Multilevel three-phase inverters are increasingly popular due to their ability to generate high-quality output voltage with harmonic distortion lower than traditional inverters. They are used in various applications, including grid-connected renewable energy systems, motor drives, and power transmission systems, to improve efficiency and reduce costs. The control quality of grid-connected multilevel inverters depends on various factors such as the modulation technique, switching frequency, and control strategy. A good control system can achieve a balance between output current harmonics and switching losses, improving the efficiency and performance of the inverter. This paper suggests a technique for reducing current harmonics of grid-connected multilevel three-phase inverters using variable frequency carriers, without any corresponding increase of the number of switching commutations. The effectiveness of the suggested method has been confirmed through simulation results, which were compared to those obtained from the method of phase opposite disposition modulation using fixed frequency carriers.
Throughput performance optimization of NOMA-assisted cooperative relay system with realistic impairments
Authors: Bachan P. , Shukla Aasheesh , Bansal Atul
Published: August 2023

This work aims to investigate the outage and throughput performance of non-orthogonal multiple access assisted cooperative relay system (CRS-NOMA) considering the realistic impairments caused due to in-phase and quadrature-phase imbalance (IQI), channel estimation errors (CEE), and successive interference cancellation (SIC) errors. More specifically, we investigate a model in which two-phase downlink transmission is carried out in two different modes: (i) CRS-NOMA without direct links and (ii) CRS-NOMA with direct links (CRS-DLNOMA). In CRS-NOMA mode, the source broadcasts a composite NOMA signal to destination users with the assistance of a decode-and-forward (DF) relay. In contrast, in CRS-DLNOMA, direct and cooperative links are available for transmission. We derive the analytical expressions of outage probability and throughput for both the NOMA destinations to evaluate the system performance of both CRS-NOMA and CRS-DLNOMA modes of transmission. Furthermore, numerical simulations also study and validate the influence of IQI, CEE, and SIC errors on the outage and throughput performance. The simulation results verify that realistic impairments degrade the system performance, but the presence of direct link has a positive impact on outage and throughput. Additionally, we use the golden search method to optimize the power allocation factor (PAF) and transmission rate to maximize the throughput at the near user while ensuring the throughput constraint at the far user.
Distribution of carp edema virus in organs of infected juvenile common carp
Authors: Matras Marek , Stachnik Magdalena , Borzym Ewa , Maj-Paluch Joanna , Reichert Michał
Published: September 2023

Introduction

The disease caused by carp edema virus (CEV) manifests with lethargy as a primary sign; this observation in koi in Japan gained the disease the name koi sleepy disease (KSD). In the years following the discovery of the virus in Japan, KSD cases have been noted in the UK in koi and common carp. Conducting research in order to expand knowledge of the processes of distribution of CEV in infected fish organs will be helpful for eradication and diagnostic purposes.

Material and Methods

Carp edema virus–affected fish with clinical signs of KSD were experimentally cohabited with common carp fry (30 fish). Three fish were euthanised by bath in a 0.5 g L−1 tricaine solution at one week intervals (7, 14, 21 and 28 days post cohabitation). Tissue samples from the brain, gills, spleen, kidney, intestines and skin were collected, and the total DNA was extracted and tested by real-time PCR.

Results

By the seventh day post infection, CEV DNA was most often found in the skin, gills and brain and less frequently in the kidney and intestines. In many of the common carp fry, CEV DNA could typically be found in several organs of each individual fish, although it was only found in one sample of spleen tissue.

Conclusion

In this experimental study the pathogenesis of the CEV infection process was shown, the high infectivity of CEV was confirmed and the best organs were determined for sampling in CEV-infection experimentation. The real-time PCR method used in our cohabitation experiments was shown to be useful at the clinical and asymptomatic stage of virus infection.
Quality by design-based method development for the determination of related substances of ezetimibe by high performance liquid chromatography
Authors: Ferencz Elek , Sipos Emese , Kelemen Éva-Katalin , Obreja Mona , Urkon Melinda , Tóth Gergő , Szabó Zoltán-István
Published: August 2023

The pharmaceutical industry is one of the fastest developing industries, and therefore, the chromatographic methods used to ensure the quality of products are constantly evolving, based on current regulatory requirements. Relevant guidelines state that a good understanding of the effects of all parameters on method performance should be predicted and controlled to ensure that test methods are safe and reliable. This quality by design-based approach is increasingly applied in chromatography. One of the pillars of this method development is the design space that results from pre-designed and systematically realized experiments, which contributes to a better understanding of the separation processes and provides flexibility and robustness to the final method. Modeling softwarewares can be used to experimental design and data evaluation, providing possibilities that empirical development does not allow, such as predicting optimal operating conditions or in silico robustness testing, to understand the separation process. This paper describes the steps of chromatographic method development according to the ICH Q14 guideline, keeping in mind the quality by design principles and taking advantage of the possibilities offered by the DryLab chromatographic modeling software. As an example, the development of an analytical method for the determination of the related substances of ezetimibe is presented, including the design of experiments, method optimization, robustness testing, validation, method specification and lifecycle management, and finally testing of the method applicability. We have demonstrated that experimental design-based retention modeling is an effective way of method development, and the in silico robustness testing is a reliable approach to identifying critical method parameters and setting up control strategies. In chromatographic method development, instead of using a rigid system based on strict and fixed rules, the understanding of separation processes offers higher flexibility. This paper aims to present and promote this new approach to those involved in chromatographic method development.
Strengthen EU/NATO Relationship: A Necessity, Now More Than Ever
Authors: Nieto Fernández María Isabel
Published: August 2023

This study aims to analyse the evolution of the relationship between the European Union (EU) and the North Atlantic Treaty Organisation (NATO) in the recent decades, particularly with the implementation of the EU's Common Security and defence Policy (CSDP). This study also aims to improve knowledge of the trends of different approaches in the EU about this relationship. Strengthening the cooperation in the field of security and defence is vital for the EU, considering the implications of the Russian invasion of Ukraine and the current hostile international environment, with increasing geopolitical competition between the great powers.
Cultural Analysis of the Impact of Cultural Differences on Non-Verbal Communication during the On-Site Business Meetings of Slovenian and Montenegrin Partners
Authors: Lacmanovic Jelena
Published: August 2023

This research addresses challenges of the intercultural business encounters of Slovenian and Montenegrin business partners with a focus on the non-verbal communication (NVC; body language, physical appearance, proxemics, haptics, chronemics, oculesics) during intercultural business meetings between partners. Analysis was built on the theoretical framework on the basis of Hofstede's six dimensions of culture. The comparison between the two countries was performed, showing that there are no significant differences except for the masculinity–femininity aspects, but when considering the Indulgence and Long Term Orientation, Slovenia exhibits equally dispersed traits of both extremes. This comparison served as a starting point for developing a research structure. Before conducting the qualitative study, nine managers from Slovenian and Montenegrin companies were sampled using snowball technique, conveniently being from partner companies in both countries. They were interviewed by the semi-structured interview technique, which addresses differences and similarities within NVCs: their posture, eye contact, physical appearance, chronemics and proxemics during onsite business meetings. The research data findings demonstrate that respondents did not perceive significant differences, which could impact the quality of NVC or lead to greater conflicts. In the comparative analysis of two business cultures, several aspects were identified within two areas, namely paralanguage and chronemics: Montenegrins are reported to be more talkative, louder and fast-speaking, more gesticulating, and rushing decisions and discussions, while Slovenians are reported to be more reserved, calm, less expressive during the meetings, and taking more time for decisions and discussions. Analysis also revealed that both sides show a relatively low level of awareness of the NVC and not paying enough attention to these specific NVCs and their impact during intercultural business communication. The findings indicate that some cultural differences exist between the cultures; however, respondents showed a low level of awareness and reported no ability to approach or manage NVC during the business encounters.
Kommentiertes Artenspektrum der Habichtskräuter (Gattungen Chlorocrepis, Hieracium und Pilosella) im Burgenland (Österreich)
Authors: Gottschlich Günter , Brandstätter Gerald
Published: August 2023

From 2016 to 2018 a comprehensive mapping of hawkweeds (Hieracium s. str., Pilosella and Chlorocrepis) accompanied by intensive activities in collecting of herbarium specimens was carried out in the Burgenland (Austria). Additionally, records cited in literature and obtained by revision work in several European herbaria were added to our database. As a result, an annnotated list of hawkweeds species in Burgenland country is presented. It is based on almost 2900 datasets, of which nearly 2700 are documented by herbarium specimens. In additition to Chlorocrepis staticifolia the list includes 22 species of the genus Hieracium with 64 subspecies and 32 species of the genus Pilosella with five subspecies. All of them are documented by herbarium specimens. In addition, 31 subspecies from literature are cited in the text. Eight species of the genus Hieracium (H. diaphanoides, H. glaucinum, H. neostenophyllum, H. pillii, H. pseudobifidum, H. rotundatum, H. sibaricum, H. transylvanicum) and eight species of the genus Pilosella (P. acrothyrsa, P. calodon, P. erythrochrista,P. flagellaris, P. heterodoxa, P. koernickeana, P. tubulata and P. ziziana) were detected for the first time in Burgenland. Seven species, mentioned in the botanical literature (H. clusii, H. saxatile, H. schmidtii, H. subramosum, P. dubia, P. onegensis, Schlagintweitia intybacea) are classified as wrong or dubious information. The name of H. brevifolium subsp. brachysteleon is validated, the name of H. pilosellinum subsp. purbachense is lectotypified. Six new combinations are made: H. rotundatum subsp. lancifolium, H. rotundatum subsp. leptocephaloides, H. rotundatum subsp. platyrhombum, H. rotundatum subsp. pleiophyllopsis, H. rotundatum subsp. praecurrens, H. rotundatum subsp. subserratifolium.
The Evaluation of Medical Records of Gingival Recession in Chronic Periodontitis Patient
Authors: Astuti Luki , Shafina Syifa
Published: September 2023

Background: Periodontitis is inflammation of the gingiva accompanied by alveolar bone loss, which causes loss of attachment. Local factors that can exacerbate periodontitis are gingival recession, a condition where the gingival margin is pulled away from the cemento-enamel junction (CEJ), resulting in the opening of the root surface that was initially closed. Objective: This study aimed to determine the distribution of gingival recession features in chronic periodontitis patients at the Universitas Trisakti Dental Hospital, Indonesia. Material and Methods: This type of research is an observational descriptive with a cross-sectional research design with periodic medical record samples from January 2013 to December 2017. Data obtained from medical records were recorded and grouped in tables and then analyzed manually. Results: Of the 583 periodontal patients, there were 311 patients with gingival recession consisting of 11 maxillary gingival recession patients, 21 mandibular gingival recession patients with the majority of mild classification of gingival recession (3.0 mm from the exposed root surface) and 279 patients suffering from in both jaws with the majority classification of severe gingival recession ( 4.0 mm exposed root surface). Conclusion: Gingival recession in patients with chronic periodontitis is more common in the mandible than the maxilla. Patients with chronic periodontitis mostly experience gingival recession of more than 1 tooth in the upper and lower jaw with severe classification ( 4 mm).
Relationship of Temporomandibular Joint Disorders and Psychological Distress in Young Adults
Authors: Hanin Isya , Putri Pramudita Wiyani
Published: September 2023

Background: Temporomandibular disorders (TMD) relate to dysfunctions that impact the temporomandibular joint (TMJ), masticatory muscles, and connected structures. Psychological well-being can be among the various factors that TMD affects. Prior studies conducted in different countries have demonstrated a correlation between TMD symptoms and psychological distress in young adults. However, research on this topic is limited in Indonesia. Objective: To assess the association of symptoms of temporomandibular joint disorder and psychological stress in young adults. Materials and Methods: This research employed an analytical cross-sectional design and involved 354 participants (141 males and 213 females) aged 19-21 from Kampus A of Universitas Trisakti. The subjects' general characteristics, including gender, age, and ethnicity, were described. The data were gathered through two types of questionnaires: DC/TMD axis I (Symptom Questionnaire) and axis II (Patient Health Questionaire-PHQ-4), and were analyzed using the Spearman correlation test administered through Google Form. Result: The study's findings revealed that 141 participants (39.8%) were male, while 213 (60.2%) were female. Among the research subjects, 91 individuals - 32 males and 59 females - experienced the most discomfort in the pain category, with the mean PHQ-4 score for pain being the highest at 4.68. The bivariate analysis demonstrated a moderate correlation coefficient value (r = 0.401) and a significant relationship (p 0.05) between temporomandibular disorders (TMD) in the pain category and psychological distress. The prevalence of TMD was 39.8% in males and 60.2% in females. Conclusions: TMD is a common problem among young adults aged 19-21 years, and pain associated with TMD can lead to psychological distress in this age group.
FAKTOR-FAKTOR YANG MEMENGARUHI MAHASISWA DALAM MENGGUNAKAN OJEK ONLINE
Authors: DESKA DELVI AMY , JAYANEGARA KETUT , NILAKUSMAWATI DESAK PUTU EKA
Published: September 2023

Transportation is a very important field of activities in the life of Indonesian people. Recognizing the importance  role of transportation, traffic and road transportation must be organized in an integrated national transportation system and able to realize the availability of transportation services in accordance to the level of need. One of the most widely used transportation is ojek online. Of course, some factors become the influence of the use of online motorcycle taxis. One quantitative method that can measure customer perception using online motorcycle taxis is the Factor Analysis method, which is a statistical analysis used to find out the factors that underlie and show interrelationships between changemakers. Based on questionnaires distributed to 150 students in the FMIPA environment of Udayana University in 2021 and after an analysis of factors on questionnaire data, it was obtained that factors which influence students' decisions to use online motorcycle taxis are location and destination factors, service factors, application factors, and promotional factors. These factors can explain the diversity of students to use online motorcycle taxis by 34.666%; 28,897%; 22.563% and 10.873%. The dominant factor that mostly influence students' decision to use online motorcycle taxis is the factor of place and destination location that can be explained by 34.666%.
PENENTUAN PRIORITAS ATRIBUT PRODUSEN MINUMAN INSTAN DENGAN MENGGUNAKAN METODE ANALYTIC HIERARCHY PROCESS
Authors: RIOTISNA I MADE AGUS , SUKARSA I KOMANG GDE , SRINADI I GUSTI AYU MADE , KENCANA I PUTU EKA NILA
Published: September 2023

Decision Support System is a computer-based interactive system that helps decision making in utilizingnthe use of data and decision model models to solve problems that are semi-structured and unstructured The decision support system method is very diverse several methods that are often used, including the fuzzy logic method Expert System Method and the Analytical Hierarchy Process (AHP) method in this study will use the analytical hierarchy method  AHP Process to Determine the Priority of Instant Drink Manufacturer Attributes at PT Kembar Putra Makmur The results of the study showed that the highest criteria were found in the delivery criteria with a value of 0 27 and the highest alternative was found in alternative KINO producers with a value of 0 55