bluuebunny/crossref_metadata_2025 huggingface dataset:
Intra-cavity selective absorption polarizer for a 1 µm solid-state laser
Authors: Yu Pingzhang , Pan Xiaobo , Wang Zhengping , Liu Yanqing , Yu Fapeng , Xu Xinguang
Published: August 2023

A type of intra-cavity polarizer based on a selective absorption mechanism was reported. For Sm:GdCa4O(BO3)3 (Sm:GdCOB) crystal, its polarized absorption property takes on significant anisotropy, and at 1 µm waveband its Y- polarized absorption is close to zero. Utilizing such special property, Sm:GdCOB intra-cavity polarizer are developed for 1 µm solid-state lasers, to generate Y-polarized laser output. This method has been successfully applied to different laser crystals, including cubic Nd:Y3Al5O12 (Nd:YAG), uniaxial Nd:LiGd(MoO4)2 (Nd:LGMO), and biaxial Nd:Lu2Y2SiO5 (Nd:LYSO). In summary, this research supplies a novel, effective, convenient, and cost-saving route to control the polarization and wavelength of solid-state lasers.
An objective criterion to evaluate sequence-similarity networks helps in dividing the protein family sequence space
Authors: Hornung Bastian Volker Helmut , Terrapon Nicolas
Published: August 2023

The deluge of genomic data raises various challenges for computational protein annotation. The definition of superfamilies, based on conserved folds, or of families, showing more recent homology signatures, allow a first categorization of the sequence space. However, for precise functional annotation or the identification of the unexplored parts within a family, a division into subfamilies is essential. As curators of an expert database, the Carbohydrate Active Enzymes database (CAZy), we began, more than 15 years ago, to manually define subfamilies based on phylogeny reconstruction. However, facing the increasing amount of sequence and functional data, we required more scalable and reproducible methods. The recently popularized sequence similarity networks (SSNs), allows to cope with very large families and computation of many subfamily schemes. Still, the choice of the optimal SSN subfamily scheme only relies on expert knowledge so far, without any data-driven guidance from within the network. In this study, we therefore decided to investigate several network properties to determine a criterion which can be used by curators to evaluate the quality of subfamily assignments. The performance of the closeness centrality criterion, a network property to indicate the connectedness within the network, shows high similarity to the decisions of expert curators from eight distinct protein families. Closeness centrality also suggests that in some cases multiple levels of subfamilies could be possible, depending on the granularity of the research question, while it indicates when no subfamily emerged in some family evolution. We finally used closeness centrality to create subfamilies in four families of the CAZy database, providing a finer functional annotation and highlighting subfamilies without biochemically characterized members for potential future discoveries.
The role of sex and handedness in the performance of the smartphone-based Finger-Tapping Test
Authors: Brito Felipe André Costa , Monteiro Luis Carlos Pereira , Rocha Santos Enzo Gabriel , de Lima Ramon Costa , Santos-Lobato Bruno Lopes , Cabral André Santos , Callegari Bianca , Costa e Silva Anselmo de Athayde , Souza Givago Silva
Published: August 2023

The Finger Tapping Test (FTT) is a classical neuropsychological test that assesses motor functioning, and recently it has been employed using smartphones. For classical protocols, it has been observed that sex and handedness influence the performance during the test. By assessing the influence of sex and handedness on the test, it is possible to adjust the performance measurements to ensure the validity of test results and avoid sex- and handedness-related bias. The present study aimed to evaluate the influence of sex and handedness on smartphone-based FTT performance. We developed an Android application for the FTT and recruited 40 males and 40 females to carry out three spatial designs on it (protocols I, II, and III). Participants’ performance was measured using the global, temporal, and spatial parameters of the FTT. We observed that for the performance in protocol I, handedness had a significant influence on global and temporal variables, while the interaction between handedness and sex had a greater influence on spatial variables. For protocols II and III, we observed that handedness had a significant influence on global, temporal, and spatial variables compared to the other factors. We concluded that the smartphone-based test is partly influenced by handedness and sex, and in clinical implications, these factors should be considered during the evaluation of the smartphone-based FTT.
Acceptability of breast milk donor banking: A qualitative study among health workers in Greater Accra Regional Hospital, Ghana
Authors: Tende Fred Kafui , Nwameme Adanna Uloaku , Tabong Philip Teg-Nefaah
Published: August 2023

Despite the compelling evidence demonstrating the immediate and long-term health advantages of prompt breastfeeding from birth, not all newborns are breastfed exclusively for a variety of reasons. As a result, the World Health Organization has made new recommendations for the adoption of breastmilk donor banks to make sure that children receive breastmilk when mothers are unable to produce it. In order to better understand how health professionals at the Greater Accra Regional Hospital, who would be leading the charge in putting this policy into practice, perceive and accept the practice of storing breastmilk, this study was conducted. At the Greater Accra Regional Hospital, 18 healthcare professionals were chosen using maximum variation purposive sampling procedures. They were made up of eleven midwives, a medical officer, six nurses, and two nutritionists and all participants were interviewed face to face using a semi structured interview guide. Data was transcribed verbatim and was analyzed using thematic analysis. Participants in the study admitted that they would be open to using or contributing to a bank of breastmilk. Participants also said that if safety precautions are taken, they would urge their customers to give breastmilk and recommend breastmilk from a breastmilk bank to them when the situation calls for it. Health professionals recommended that education be provided prior to the installation of breast milk donor banking to lessen or eliminate any misconceptions people may have about it. The concept of breastmilk donor banking was fairly accepted among health workers. Misconceptions about the safety of breast milk was the main concern. The results emphasize the necessity of greater stakeholder engagement and education prior to the implementation of this policy in order to boost acceptance and uptake.
Determinants of incomplete child vaccination among mothers of children aged 12–23 months in Worebabo district, Ethiopia: Unmatched case-control study
Authors: Abegaz Mesfin Yimer , Seid Awol , Awol Shikur Mohammed , Hassen Seid Legesse
Published: August 2023

In nations like Ethiopia, vaccination rates are low despite being one of the most effective public health treatments to protect infants from common infectious diseases that can be prevented by immunization. In Worebabo District, the reasons of the underutilization of vaccination programs are poorly understood. Therefore, this study aimed to identify determinants of incomplete childhood vaccination in the study setting. Community based unmatched case-control study was carried out among 441 mothers of children aged 12–23 months old (147 cases and 294 controls) in Worebabo District, Ethiopia from March 1—April 30, 2020. Using a multistage sampling process, mothers were chosen. Health professionals were trained to collect data using a pre-tested standardized questionnaire. Data entered into Epi Info version 7.2 and put through statistical analysis in SPSS version 23. Binary logistic regression was performed to determine the odds ratio with a 95%CL. A p-value of under 0.05 was estimated statistically significant. The study found that older moms (>35 years old) were more likely than younger mothers to fail to properly immunize their children (AOR = 2.4, 95% CI: 1.09, 5.28). In addition, mothers with incomplete vaccinations had lower knowledge of the benefits of vaccination (AOR = 2.02, 95% CI: 1.20, 3.39), Negative attitudes towards immunization (AOR = 4.9, 95% CI: 2.82, 8.49), less access to prenatal care (AOR = 3.68, 95% CI: 1.58, 8.54), home delivery (AOR = 5.47, 95% CI: 2.58)., 11.58), absent home visits (AOR = 3.56, 95% CI: 1.69, 7.48), and longer time to reach vaccination site (>1 h) (AOR = 10.07)., 95% CI: 1.75, 57.79) were found associated with mother incomplete vaccination of the child. Mothers being older age, less access to antenatal care services, place of home delivery, longer time to reach vaccination site, negative attitude and poor knowledge towards the benefit of vaccination were associated with mothers’ incomplete vaccination of the child. Therefore, health professionals should inform and counsel mothers about the advantages of childhood immunization as well as the consequences of incomplete or not vaccination of children at the time of the facility visit and by community health workers during the routine home visit.
Cardiometabolic multimorbidity and associated patterns of healthcare utilization and quality of life: Results from the Study on Global AGEing and Adult Health (SAGE) Wave 2 in Ghana
Authors: Otieno Peter , Asiki Gershim , Wilunda Calistus , Wami Welcome , Agyemang Charles
Published: August 2023

Understanding the patterns of multimorbidity, defined as the co-occurrence of more than one chronic condition, is important for planning health system capacity and response. This study assessed the association of different cardiometabolic multimorbidity combinations with healthcare utilization and quality of life (QoL). Data were from the World Health Organization (WHO) study on global AGEing and adult health Wave 2 (2015) conducted in Ghana. We analysed the clustering of cardiometabolic diseases including angina, stroke, type 2 diabetes, and hypertension with unrelated conditions such as asthma, chronic lung disease, arthritis, cataract and depression. The clusters of adults with cardiometabolic multimorbidity were identified using latent class analysis and agglomerative hierarchical clustering algorithms. We used negative binomial regression to determine the association of multimorbidity combinations with outpatient visits. The association of multimorbidity clusters with hospitalization and QoL were assessed using multivariable logistic and linear regressions. Data from 3,128 adults aged over 50 years were analysed. We identified four distinct classes of multimorbidity: relatively “healthy class” with no multimorbidity (47.9%): abdominal obesity only (40.7%): cardiometabolic and arthritis class comprising participants with hypertension, type 2 diabetes, stroke, abdominal and general obesity, arthritis and cataract (5.7%); and cardiopulmonary and depression class including participants with angina, chronic lung disease, asthma, and depression (5.7%). Relative to the class with no multimorbidity, the cardiopulmonary and depression class was associated with a higher frequency of outpatient visits [β = 0.3; 95% CI 0.1 to 0.6] and higher odds of hospitalization [aOR = 1.9; 95% CI 1.0 to 3.7]. However, cardiometabolic and arthritis class was associated with a higher frequency of outpatient visits [β = 0.8; 95% CI 0.3 to 1.2] and not hospitalization [aOR = 1.1; 95% CI 0.5 to 2.9]. The mean QoL scores was lowest among participants in the cardiopulmonary and depression class [β = -4.8; 95% CI -7.3 to -2.3] followed by the cardiometabolic and arthritis class [β = -3.9; 95% CI -6.4 to -1.4]. Our findings show that cardiometabolic multimorbidity among older persons in Ghana cluster together in distinct patterns that differ in healthcare utilization. This evidence may be used in healthcare planning to optimize treatment and care.
Selection/control concurrent optimization of BLDC motors for industrial robots
Authors: Padilla-García Erick Axel , Cervantes-Culebro Héctor , Rodriguez-Angeles Alejandro , Cruz-Villar Carlos Alberto
Published: August 2023

This paper aims to concurrently select and control off-the-shelf BLDC motors of industrial robots by using a synergistic model-based approach. The BLDC motors are considered with trapezoidal back-emf, where the three-phase (a,b,c) dynamics of motors are modeled in a mechatronic powertrain model of the robot for the selection and control problem, defining it as a multi-objective dynamic optimization problem with static and dynamic constraints. Since the mechanical and electrical actuators’ parameters modify the robot’s performance, the selection process considers the actuators’ parameters, their control input, operational limits, and the mechanical output to the transmission of the robot joints. Then, three objective functions are to be minimized, the motor’s energy consumption, the tracking error, and the total weight of installed motors on the robot mechanism. The control parameterization approach via a cascade controller with PI controllers for actuators’ voltage and a PID controller for actuators’ torque is used to solve the multi-objective dynamic optimization problem. Based on simulations of the closed-loop system, a Pareto front is obtained to examine trade-offs among the objective functions before implementing any actuators in the existing robotic system. The proposed method is tested on an experimental platform to verify its effectiveness. The performance of an industrial robot with the actuators originally installed is compared with the results obtained by the synergic approach. The results of this comparison show that 10.85% of electrical power can be saved, and the trajectory tracking error improved up to 57.41% using the proposed methodology.
Carrot populations in France and Spain host a complex virome rich in previously uncharacterized viruses
Authors: Schönegger Deborah , Marais Armelle , Babalola Bisola Mercy , Faure Chantal , Lefebvre Marie , Svanella-Dumas Laurence , Brázdová Sára , Candresse Thierry
Published: August 2023

High-throughput sequencing (HTS) has proven a powerful tool to uncover the virome of cultivated and wild plants and offers the opportunity to study virus movements across the agroecological interface. The carrot model consisting of cultivated (Daucus carota ssp. sativus) and wild carrot (Daucus carota ssp. carota) populations, is particularly interesting with respect to comparisons of virus communities due to the low genetic barrier to virus flow since both population types belong to the same plant species. Using a highly purified double-stranded RNA-based HTS approach, we analyzed on a large scale the virome of 45 carrot populations including cultivated, wild and off-type carrots (carrots growing within the field and likely representing hybrids between cultivated and wild carrots) in France and six additional carrot populations from central Spain. Globally, we identified a very rich virome comprising 45 viruses of which 25 are novel or tentatively novel. Most of the identified novel viruses showed preferential associations with wild carrots, either occurring exclusively in wild populations or infecting only a small proportion of cultivated populations, indicating the role of wild carrots as reservoir of viral diversity. The carrot virome proved particularly rich in viruses involved in complex mutual interdependencies for aphid transmission such as poleroviruses, umbraviruses and associated satellites, which can be the basis for further investigations of synergistic or antagonistic virus-vector-host relationships.
Immediate and short-term effects of single-task and motor-cognitive dual-task on executive function
Authors: Zhang Weibin , Liu Hua , Zhang Tong
Published: August 2023

Objectives

Executive function plays an important role in our daily life and can be affected by both single task (acute aerobic exercise or cognitive training) and dual-task (acute motor-cognitive training) interventions. Here we explored the immediate and short-term effect on executive function to texted whether dual-task interventions are more effective at promoting executive function.

Methods

Forty-six young men were recruited (mean age: 20.65 years) and assigned randomly to aerobic exercise (n = 15), cognitive training (n = 15), or dual-task (n = 16) groups. Executive functions were assessed before, immediately after, and 30 min after intervention using Go/No-go, 2-back, and More-Odd-Shifting tests.

Results

Working memory function improved after all three interventions (significant Time effect, F(2,86) = 7.05, p = 0.001). Performance on the 2-back test was significantly better immediately after dual-task intervention (p = 0.038) and the response time was shorter (p = 0.023). Performance on the More-Odd-Shifting test improved over time (significant Time effect, F(2,86) = 30.698, p = 0.01), both immediately after the dual-task intervention (p = 0.015), and 30 min later (p = 0.001). Shifting-test performance was also better immediately after (p = 0.005) and 30 min after (p < 0.001) aerobic exercise.

Conclusion

Executive function was enhanced by single-task (acute aerobic exercise or cognitive training) and dual-task interventions. The effect continued for 30 min after both the single-task aerobic exercise and the dual-task intervention. For short-term intervention, the dual-task was not more effective than either of the single tasks.
Editorial
Authors: Brezavšček Pia
Published: August 2023

With the overflow of free and personalized internet content available practically everywhere at any moment simply by clicking on a link, publishing a printed magazine with in-depth content and extremely lengthy articles that exceed an average reader’s ability to pay attention long enough to read them doesn’t seem like the most obvious choice. The amount of available online content is enormous, information overflows the world much faster than one is able to register, we’re bombarded by aggressive clickbait every day, access to our personal information is hacked and exploited on a daily basis continuously and aggressively attempting to grab our attention by using our most intimate data. Contemporary interdisciplinary studies talk about the “attention economy“ because attention – compared to the amount of data that’s being produced in this era overwhelmed with (useless) information – has become a very scarce and precious raw material that can be monetized and traded with. But isn’t one of the possible ways to rebel against this exploitation and abuse of attention precisely to meticulously nurture reading practices and participate in interest groups in order to stand up to the fragmentation of readers and individualization of content?
The potency of cabaret performance
Authors: Zupan Metod
Published: August 2023

The cabaret form, which was a popular form of performance practice in the early years of the last century, nowadays most often exists within the margins, but in the view of writer Metod Zupan, An Evening of Dance Solos (NDA Slovenija, 2022) by Dejan Srhoj relocates this form to the field of contemporary dance and explores the current trends in this genre of performance.
Mislim
Authors: Özdemir Görkem
Published: August 2023

It is my one and a half year in this city. Quite naturally I met with people from different ways of life and backgrounds within this relatively short time span; I attended live concerts, festivals, film screenings, theatre and dance performances, public happenings etc. However, I think my perception is still unblemished in terms of prejudices toward the cultural scene in Ljubljana. In general, I think it is getting harder and harder to focus our attention on a single thing, but rather we get washed under unfiltered information from many directions, for the benefit of few. Being a multitasker in any occupation was a thing that has been practiced by less people then now. The roles were more precise for us to function within the modern society. Harnessing the attention has always been a part of human society and it is closely related with many kinds of economies, whether it is financial, affective, or political. In the meantime – as a recent additional actor – digital algorithms (which are owned by some elites and non-human corporate bodies) run and sustain a boring dystopia nowadays. Moreover, excessive use of media devices may be causing digital and chemical addictions and hormonal rushes to survive this condition.
Attention as distraction
Authors: Berger Neja
Published: August 2023

Attention, as sustained thoughtful focus, differs from distraction solely in view of the deliberated object’s social value. Social risks and contradictions, typically regarded as a collective concern, have colonised privacy through processes of individualization and are nowadays considered exclusively from individual’s positions – attention aimed inwards as an outside distraction. Coincidentally, in this era of “the attention/distraction economy,” what we socially evaluate as distraction is extremely profitable for perpetuating the system and respective capital. Individual(‘s) guilt while serving the aforementioned purpose, reinforces the perception of individual responsibility and steers the(ir) focus towards strengthening personal discipline and continuously upgrading one’s biography. However, if disruption, which steers our thoughts towards the collective or outward, does exist, I’d call it art.
I have 43 tabs open, 6 are used for this contribution, the rest are random
Authors: Hrvatin Varja
Published: August 2023

The question of bipolarity in understanding theatre as the concept of live event in contrast to the concept of mediation is in the frame of the economy of attention turned to the question of post-digital dramaturgy and the direction of the spectators’ gaze. In the mentality of the society, trapped in a constant bombardment with information and impulses, we the theatre makers have to ask ourselves: with what kind of procedures in performing arts can we address that issue? How and if at all can we transform the logic of the infinite open tabs in our browsers and our brains into a theatre experience?
Sam sad texting
Authors: Buh Maša Radi , Bozovičar Rok
Published: August 2023

So why, on the occasion of an insight into the oeuvre of one of the most exciting theatre artists of the moment, will we devote a large part of this text to his (theatre-dance) serialisation? And why will we look for an adequate form through the way of writing itself too? Because there seems to be something at the very heart of his performance-making processes that corresponds in the relations of interdependence to the serial productivity, serialisation and narrativization of contemporary dance and theatre. [does life therefore submit to serialisation, or does serialisation frame life?] In this text, rather than focusing on individual performances, […] we are concerned with the approaches, processes and effects that govern Ferlin’s creativity – and in a visible way also influence the very way in which this text is written, structured and shaped.
Comunidades Tradicionais, racismo ambiental e escola: um olhar para as políticas nacionais de educação
Authors: NASCIMENTO LISÂNGELA KATI DO
Published: August 2023

Neste artigo discutiremos a relação entre comunidades tradicionais, racismo ambiental, identidade, escola, currículo e políticas nacionais de educação a partir dos resultados da pesquisa de pós-doutoramento, a qual teve como recorte espacial de análise a região do Vale do Ribeira-SP, onde se concentra o maior número de comunidades tradicionais do estado do São Paulo, incluindo quilombolas, caboclos, caiçaras e indígenas. Partindo do princípio que é papel da escola desenvolver concepções educativas e estratégias didáticas que favoreçam o enfrentamento de conflitos e discriminação entre grupos sociais, analisaremos a inserção de temáticas relacionadas às comunidades tradicionais nas políticas nacionais de educação e os principais desafios encontrados nas escolas públicas do Vale do Ribeira.
Marx, Educação e Sociologia da Educação
Authors: Souza Iael
Published: August 2023

Este artigo tem como objetivo sistematizar, de modo sumário, as considerações de Karl Marx sobre a educação e sua relação com a visão (e posicionamento) de mundo, de formação humana, de sociedade e de classe do autor/militante e pensador, a ser utilizado na disciplina de Sociologia da Educação.
Estratégias para a formação continuada de professores: relato de experiência do Projeto Aprender a Estudar Textos em um Município da Região Metropolitana de São Paulo
Authors: Caruso Bruna Henrique
Published: August 2023

O presente relato tem o objetivo de compartilhar uma experiência de implementação do Projeto Aprender a Estudar Textos (AET). Desenvolvida pelo Laboratório de Educação, a metodologia de formação continuada do Projeto apoia professoras dos 4º e 5º ano do Ensino Fundamental no estudo e planejamento de atividades que incorporam a linguagem acadêmica como ferramenta de ensino e de aprendizagem, tanto da leitura quanto da área de História. Por meio de um conjunto estruturado de ações formativas, contribui à reflexão docente sobre interações comunicativas e práticas pedagógicas em torno dos textos escolares.
Enzymatic Assisted Treatments of Lycopene Extraction from Tomato (Lycopersicon Esculentum) Peels using Rice Bran Oil
Authors: T. Nguyen Trang M. , H. Nguyen Ha V.
Published: August 2023

Although having the potential to prevent oxidation and cardiovascular diseases due to the substantial amount of lycopene it contains, the massive quantity of tomato peels is now solely discarded as a by-product of the processing industry. In the present study, the effects of enzymatic treatments on lycopene content extracted from tomato peels using rice bran oil were evaluated. A two-step protocol was followed: the tomato peels were treated with enzyme and then extracted with rice bran oil for 1 h at 25 °C and a solid percentage of 3.5%. Treatment factors investigated were Viscozyme L. concentrations (0.5–2.5 %), incubation time (30–150 min) and incubation temperatures (30–70 °C). Antioxidant capacity, peroxide value, acid value and color changes of the rich-pigmented oil product were analyzed. Under the best extraction conditions (Enzyme concentration = 2%; Incubation time = 90 min; Incubation temperature = 50 °C), the lycopene content was extracted up to 320 mg/100 g of dry weight. Results showed that using Viscozyme L. significantly (p ≤ 0.05) increased the lycopene content in the pigmented oil product. These results suggested the idea of using a cell-wall degrading enzyme in the extraction to promote the use of tomato by-products as a rich source of lycopene and a good approach for waste utilization.
IMPLEMENTATION OF PROPORTIONAL AND PI ROASTING TEMPERATURE CONTROL IN DRUM-TYPE COFFEE ROASTER
Authors: Rachman Mohamad Nur Aulia , Setiyono Budi , Zahra Ajub Ajulian
Published: August 2023

Indonesia ranks as 4th highest coffee exporter by capacity and export value in the world, behind Brazil, Vietnam and Colombia. Statistics from The World Bank shows 2841 tons caffeinated roasted bean coffee from both varieties being exported from Indonesia throughout the world, while the National Statistics Board of Indonesia reported 380.173 tons of green bean coffee exported from Indonesia within 2019. Based on previous developments of coffee roasting technology, as this undergraduate thesis will explain about a coffee roaster prototype which is an improvement from previous researches, equipped with centralized temperature control and monitoring system from Artisan roasterscope that eases the operator or user’s workload to monitor the coffee beans’ roast level based on roast temperature and duration. In the experimentation of Ziegler-Nichols proportional control proves to give the best result for Robusta coffee with average rate of rise at 52.1° Celsius/min and average roast temperature of 140.8° Celsius which yields 100% roast uniformity at 95 Agtron roast scale. Following the addition of Astrom-Hagglund’s Proportional-Integral control, the result shows a formidable difference between each coffee bean varieties due to water content difference between both varieties. Keywords: coffee roasting, coffee roaster, proportional control, Artisan RoasterScope
PERANCANGAN JARINGAN AKSES PADA PERUMAHAN MENGGUNAKAN TEKNOLOGI NG-PON2 DENGAN ALGORITMA K-MEDOID CLUSTERING
Authors: Nabella Nur , Sukiswo Sukiswo , Christyono Yuli
Published: August 2023

Dalam era digital saat ini, ketersediaan akses internet yang cepat dan stabil sangat penting dalam mendukung aktivitas keseharian seperti bekerja, belajar, dan mengakses informasi. Oleh karena itu, penggunaan FTTH menjadi pilihan yang semakin populer untuk menyediakan layanan akses internet yang cepat dan berkualitas tinggi di rumah. Fiber to the Home (FTTH) adalah teknologi jaringan yang memungkinkan penggunaan internet super cepat melalui serat optik hingga ke rumah pengguna. Perancangan jaringan FTTH dilakukan pada Perumahan Punsae dengan menggunakan algoritma K-Medoids clustering untuk menentukan lokasi Optical Distribution Point (ODP) pada instalasi kabel aerial dan pedestal. Hal ini juga mencakup perancangan dengan dua metode penggelaran, yaitu moda penggelaran aerial dan pedestal. Perancangan FTTH di Perumahan Punsae menunjukkan bahwa instalasi kabel aerial lebih disarankan karena memiliki daya terima ONT yang lebih tinggi dan efisien dalam pengelompokkan ONT pada beberapa jalur distribusi. Meskipun instalasi kabel pedestal dapat menghemat penggunaan kabel distribusi dan kabel drop karena memiliki rata-rata total panjang kabel serat optik yang lebih pendek. Total biaya implementasi pada instalasi kabel menggunakan metode aerial juga lebih hemat biaya dibandingkan dengan metode pedestal sebesar sekitar Rp 47.527.548,00. Penggunaan algoritma K-Medoids clustering dalam penentuan lokasi ODP pada instalasi kabel FTTH dapat mengoptimalkan penggunaan kabel dan meminimalkan biaya implementasi.
Tracing Shumi: Politics and Aesthetics in Doppo’s ‘Musashino’ and Sōseki’s Kusamakura
Authors: van der Meer Jurriaan
Published: August 2023

This article traces the significance of the notion of shumi through a comparison between Kunikida Doppo’s ‘Musashino’ and Natsume Sōseki’s Kusamakura. I demonstrate how the language of shumi functioned as a mediator between an observing subject and an observed object, ultimately in order to establish an aesthetic vocabulary for a burgeoning middle class. Both narratives make use of shumi in order to draw out a specific experience of the narrator’s natural surroundings but with very different outcomes.Whereas Doppo’s text uses the language of shumi to draw the attention of the reader to the aesthetic features of the Musashi Plain and presents this way of seeing as natural and universal, it simultaneously works to mask the socio-political unbalance between the possessors of such sensibilities and the inhabitants of the land that is the object of the aesthetic gaze. By contrast, Sōseki’s narrative exposes the untenableness of such an artificial language as the basis for the construction of a bourgeois identity and rejects the narrator’s claims to any kind of mastery over the landscape or its occupants as a result of his heightened sensibilities. Analyzing both narratives from the vantage point of shumi therefore reveals the political, aesthetic, and ontological tensions present in its own discursive structures.
Laminar Rayleigh–Benard convection in a closed square field with meshless radial basis function method
Authors: Santosa Irfan , Budiana Eko Prasetya , Hadi Syamsul , Wijayanta Agung Tri
Published: August 2023

Research on natural convection is exciting in some experimental and numerical cases, especially in rectangular cavities with relatively low heat dissipation and thermal control systems with low cost, reliability, and ease of use. The present study will use the meshless radial basis function method to solve the velocity formulation of the Navier–Stokes equations by varying some nominal Rayleigh numbers of 104, 105, and 106. The numerical accuracy is compared with the previous research. The advantages of the meshless method are that it does not require a structured mesh and does not require inter-nodal connectivity. The results show that the temperature pattern is identical to the previous research. The calculations have been done for three different Rayleigh numbers of 104, 105, and 106 for 151 × 151 nodes. The variations of the Ra number will affect the isothermal, velocity contours, and Nusselt number.
Characterization of the active site in the thiocyanate-forming protein from Thlaspi arvense (TaTFP) using EPR spectroscopy
Authors: Hashemi Haeri Haleh , Schneegans Nicola , Eisenschmidt-Bönn Daniela , Brandt Wolfgang , Wittstock Ute , Hinderberger Dariush
Published: August 2023

Glucosinolates are plant thioglucosides, which act as chemical defenses. Upon tissue damage, their myrosinase-catalyzed hydrolysis yields aglucones that rearrange to toxic isothiocyanates. Specifier proteins such as thiocyanate-forming protein from Thlaspi arvense (TaTFP) are non-heme iron proteins, which capture the aglucone to form alternative products, e.g. nitriles or thiocyanates. To resolve the electronic state of the bound iron cofactor in TaTFP, we applied continuous wave electron paramagnetic resonance (CW EPR) spectroscopy at X-and Q-band frequencies (∼9.4 and ∼34 GHz). We found characteristic features of high spin and low spin states of a d
5 electronic configuration and local rhombic symmetry during catalysis. We monitored the oxidation states of bound iron during conversion of allylglucosinolate by myrosinase and TaTFP in presence and absence of supplemented Fe2+. Without added Fe2+, most high spin features of bound Fe3+ were preserved, while different g’-values of the low spin part indicated slight rearrangements in the coordination sphere and/or structural geometry. We also examined involvement of the redox pair Fe3+/Fe2 in samples with supplemented Fe2+. The absence of any EPR signal related to Fe3+ or Fe2+ using an iron-binding deficient TaTFP variant allowed us to conclude that recorded EPR signals originated from the bound iron cofactor.
Effects of build orientation and hatch spacing on high-speed milling behavior of L-PBF 316L stainless steel
Authors: Kaya Gürkan , Köklü Uğur , Ergüder Tevfik Oğuzhan , Cengiz Furkan , Yıldız Fatih
Published: August 2023

Due to the philosophy of the process, the surface roughness is usually high for the parts produced with laser powder bed fusion (L-PBF) additive manufacturing (AM). Parts produced by this method need surface quality improvement processes for many applications. One of the methods used for this purpose is high speed machining (HSM). HSM is a modern manufacturing technique that offers several benefits, including improved productivity, enhanced product quality, and reduced production costs. In addition, HSM can improve the quality of finished products by reducing machining errors. In this study, samples produced with 316L powder in size of 10 × 10 × 5 mm using three different hatch spacings (60, 70, 80 µm) and building orientations (0°, 45°, 90°) were produced by L-PBF method, and HSM process was applied to these samples. In this context, the present study aimed to investigate the effects of porosity, microstructure and microhardness properties of 316L samples produced by L-PBF method using different hatch spacings and build orientations on cutting forces, surface roughness and burr formation in HSM. When the numerical values of the cutting forces were analyzed in both x and y directions, it was observed that the greatest cutting force occurred in the x direction. While the Fx force ranged from 6.23 to 9.35 N, the Fy force ranged from 4.88 to 8.27 N. It has been determined that as the build orientation increases at the same hatch spacing value, the cutting forces increase due to the increased porosity ratio.
E-mpoliteness – creative impoliteness as an expression of digital social capital
Authors: Andersson Marta
Published: August 2023

This paper investigates the formal, conceptual, and functional characteristics of impoliteness in social media interactions, arguing that face-threatening acts can be viewed as an effective manifestation of social capital if delivered in a way that has potential to grant the user distinction in cyberspace – the process contingent on recognition by some groups and elimination of others. As argued in the following, social capital manifests itself through a distinct habitus that exploits relevant cultural resources specific to social media interactions for the purpose of successful differentiation between spaces and participants in this context. In order to account for the complex, richly intertextual nature of creative impoliteness on social media, the study introduces the concept of “e-mpoliteness,” which refers not only to the surface form of the examined instances but also to the plethora of other resources and references that instantiate the habitus of meaning-making in online discourse.
DANISH GRANT AND SCHOLARSHIP POLICIES TOWARDS RUSSIA IN 2011–2021
Authors:   Northern (Arctic) Federal University named after M.V. Lomonosov, Ragozin German
Published: August 2023

The paper deals with issues of cooperation between Denmark and Russia in Arctic research and academic mobility projects, making an emphasis on scholarship and grant policy. Despite the fact, that international cooperation in research and education is one of the core priorities in both Arctic strategies, before the year 2022 it was functioning in specific conditions. Scholarship and grant policy appeared to be a «soft power» tool for Copenhagen due to research topics, concentration of project management in Danish hands and disproportions in student mobility scholarship programmes. Interaction between Russian and Danish researchers has not been a subject to special attention from Danish authorities and foundations. On the contrary, researchers from both countries interacted within investigating the issues of the Arctic region actively. Even international turbulence after 2014 did not affect it: both countries stated that the «Arctic vector» is to stay aside from any turbulence. Expanding the scholarship programmes for Russian researchers in order to support their mobility to Denmark, Greenland and Faroe Islands enforced this idea. So did formal prioritization of cooperation with Russian research and educational institutions in Arctic research in 2021 for grant support. Though turbulent situation in 2022 led to suspending the interaction, it is clear that there are formal and informal grounds to restore it upon normalization. That fact will require revisiting the previous cooperation experience and implementation of the best grant and scholarship practices by Russian relevant agencies.
TURKEY’S POLICY IN THE BALKANS: A FACTOR OF «COVID DIPLOMACY»
Authors:   Kazan Federal University, Islamov Damir
Published: August 2023

Despite the focus in recent years on developments in the Middle East, North Africa, South Caucasus, the Balkans still play a crucial role in Turkey’s new foreign policy of trying to become a regional power using a personalized foreign policy, soft power, trade. The COVID-19 crisis also presented an opportunity for Turkey to represent itself as a «savior» in tough times. During the COVID-19 outbreak Turkey took steps to expand its influence in different regions, including the Balkans, by means of using the tools of «mask» and «vaccine» diplomacy. As a result, Turkey was one of the first countries to start delivering medical supplies to the region, frequently pointing out the failure of the EU’s performance as a crisis manager. In 2021, this is the point where Turkey’s policy limits become evident because of a lack of its COVID vaccine and the deterioration of the internal economic and financial climate. Thus, the purpose of the study is to examine the effectiveness of Turkey’s COVID-diplomacy towards the several Balkan states (Albania, Bosnia and Herzegovina, North Macedonia, Serbia, Montenegro, Kosovo). Moreover, the launch of the special military operation in Ukraine has revealed new opportunities for Turkey to promote itself as a mediator in diplomacy, energy, trade, transport, etc., including towards the Balkans.
PRIORITIES OF THE VISEGRAD COUNTRIES IN CONVENTIONAL AND NUCLEAR ENERGY
Authors:   MGIMO University, Drynochkin Alexey
Published: August 2023

The Visegrad countries, as members of the EU, are implementing a common line to reduce oil and gas supplies from Russia. This is accompanied by a number of problems, since not all B4 countries equally have sufficient energy potential to ensure sustainable economic growth. In this regard, the article discusses the strategic steps and operational measures necessary to eliminate conflicts that arise in the course of the process of replacing Russian energy resources implemented by the Visegrad countries. The state and prospects of cooperation between the Visegrad countries in the field of nuclear energy are also being studied. Other energy sectors where the Russian presence in the form of supplied resources or participation in investment activities is minimal (i.e. hydropower, as well as the use of coal and renewable energy sources) are not considered. It was noted that the Visegrad countries apply different energy policy strategies, depending on the sufficiency of their own energy resources, the availability of coastal terminals, the development of energy transport infrastructure, and even on demonstrating a solidarity position on a number of pressing issues for the European Union.
GERMAN GOVERNMENT APPROACHES TO RUSSIAN ACTIVISTS IN GERMANY AFTER 2022
Authors:   MGIMO University, Sokolov Artem , Pankov Evgeni ,   MGIMO University
Published: August 2023

The purpose of the study is to determine the nature of the actions of the German government in relation to politically active Russian citizens staying in Germany in the context of the deterioration of Russian-German relations in 2022 and to consider the dynamics of the transformation of the approach of the German authorities to interaction with certain groups of the Russian-speaking population. Based on the analysis of public speeches by German politicians, official government and party documents, it was concluded that Berlin is moving towards the institutionalization of the political activities of Russian activists and promoting the formation of horizontal ties between political movements. In this context, special attention is paid to the work of «near-party» political funds as structures formally independent of the parties, indirectly contributing to the implementation of their political programs – the key features of their cooperation with representatives of the Russian-speaking community are highlighted. The conclusion is made about the actualization of human rights issues in the framework of the interaction of the government with representatives of Russian civil society and the use of the latter as a resource for influencing political processes in Russia. The fact of the work of the German authorities with Russian supporters of the ideas of separatism and changes in the constitutional order of the Russian Federation living in Germany is also emphasized. The conclusions are of particular importance in the context of countering external interference in internal affairs and adapting Russia’s national security policy to new challenges and threats.
CZECH-UKRAINIAN RELATIONS AMIDST SPECIAL MILITARY OPERATION
Authors:   Institute of Europe, RAS, Vedernikov Mikhail
Published: August 2023

The article outlines the main trends in Czech-Ukrainian relations since the start of the special military operation in Ukraine. The main events of the bilateral agenda between Prague and Kiev were considered. The author notes that after February 24, the current Cabinet under the leadership of P. Fiala began to perceive the Ukrainian issue as a key one in the country’s foreign policy. This was manifested in the increased intensity of contacts and a qualitative change in the content of the talks. An assumption is made about bringing relations to a strategic level. Moreover, it was noted that the Czech Republic sought to promote its vision of the Ukrainian issue among partners in international organizations through innovative proposals and playing ahead of the curve.
OPTIMIZATION OF WAX ADDITION LEVEL IN SUNFLOWER OIL OLEOGELS VIA RESPONSE SURFACE METHODOLOGY
Authors: ÖĞÜTCÜ Mustafa , ALBAYRAK Elif , KARABAYIR Elif Sultan
Published: August 2023

In this study, oleogels were produced with a wax mixture (sunflower wax, SW; beeswax, BW) instead of single wax in order to reduce the total wax addition level and maintain the optimal properties of the oleogels. The textural and thermal properties were evaluated using the response surface methodology to determine the optimum wax addition level to form a gel with the similar properties to margarine. The firmness values and melting point were dominated by SW levels in the wax mixture. The XRD patterns showed that all of the samples had the β polymorphic form. The optimization results showed that oleogel prepared with 0.20%-SW and 2.80%-BW had lowest melting peak (46.42 °C). In conclusion, using a wax mixture instead of single wax type, a structurally stable gel with a lower melting point could be formed at a lower wax addition level.
Assessing a country ’s scientific contribution towards sustainability from higher education: a methodology for measuring progress towards the Sustainable Development Goals (SDG)
Authors: Ostos Ortiz Olga Lucia , Aparicio-Gómez Oscar Yecid , Von Feigenblatt Otto Federico
Published: August 2023

Objetivo. Desarrollar una metodología para evaluar la producción científica del país en relación con el cumplimiento de los Objetivos de Desarrollo Sostenible. Metodología. Se configuró un conjunto de datos de repositorios nacionales e internacionales de ciencia y tecnología donde se aloja la producción científica de Colombia; estos repositorios son reconocidos por alojar productos relacionados con las temáticas de los Objetivos de Desarrollo Sostenible. Como metodología se utilizó el análisis de redes complejas e indicadores como perplejidad y coherencia. Resultados. Entre los resultados más importantes destacala sincronización de productos científicos relacionados con los objetivos «Fin de la Pobreza», «Hambre Cero» y «Salud y Bienestar».Se destaca la metodología utilizada como herramienta para analizar la producción científica de un país en relación con el cumplimiento de los objetivos de desarrollo sostenible.
An Investigation on the Utilization of R470A for Air-Conditioning Systems Towards 2025
Authors: Devecioğlu Atilla G. , Oruç Vedat
Published: August 2023

The refrigerants with GWP > 750 will not be used in air conditioners according to the application of European Union restrictions that will become valid as of 2025. In this context, this study aims to investigate theoretically the utilization of the non-flammable and low-GWP refrigerant of R470A in the air conditioning system. In the analysis, R470A and R32 are compared for the evaporation temperatures of 5, 10, and 12°C while the condenser temperatures of 40 and 50°C. Although the COP of R470A is determined to be lower than R32 for a given situation of evaporation and condenser temperature, it can be safely used in systems requiring a higher amount of refrigerant charge due to its non-flammable property.