bluuebunny/crossref_metadata_2025 huggingface dataset:
Implementation of Incubation Class and Exhibition As Marketing Strategies for Students' Television Program Projects
Authors: Surya Cempaka Putri , Srimayasandy Syahyuni
Published: March 2024

Broadcasting Study Program at Polimedia requires its final year students to make television programs as one of their Final Projects. In the process, students were given materials to support the creation of the final work. However, it is such a shame for those Final Projects are just sitting uselessly in campus repository. The initiation of forming an incubation class as an exhibition preparation to market these works is gradually being implemented through courses in the final semester. Thus, this research was conducted with the aim of identifying the effectiveness of the implementation of incubation and exhibition classes in marketing television programs to the industry. The method used is the implementation of the incubation class and exhibition observationally and experimentally. The results achieved are the application of academic and practical processes by students to present their media value program to investors in broadcasting industry.
Keywords: incubation class, exhibition, television programs, broadcasting
Pecipaw (Peci Angpaw): Adding a Wallet in Traditional Peci with Enhancement of Betawi Gigi Balang Ornament
Authors: Kusumowardhani Pratiwi , Indrianti Pingki , Nurhayati Hesti
Published: March 2024

This paper sets out the additional value of peci, a hat usually worn by Muslim males in Jakarta during the celebration of Eid al-Fitr, as a symbol of Indonesian cultural identity and modesty. It is common practice for individuals to store money (angpau) in the peci for easy access, however, there is a problem with the existing traditional peci design. Money will scatter when the peci falls off, thus, compromising user comfort and safety. The peci design was explored by introducing an additional wallet feature with a zipper that allows customization and versatility. Additionally, the use of Betawi traditional ornaments further enhances the peci value, making it suitable as an iconic souvenir from Jakarta. This research applied the design thinking approach of the Hasso Platner Institute (HPI) Stanford model with five steps comprised of empathize, define, ideate, prototype, and test as a problem-solving tool to provide a better understanding of the needs and perspectives of peci users. The results show that pecipaw innovation could cater to the added value of traditional peci products as an iconic souvenir of Jakarta. Further research will help to expand more explorative design and conduct user evaluation to establish objective measurements of the final prototype.
Keywords: peci, gigi balang, betawi, ornament, wallet
Alternative Designs of Coat for Pharmacists
Authors: Rachmawaty Rachmawaty , Kusumowardhani Pratiwi , Putri Dara Hajidah
Published: March 2024

To date, a pharmacist’s coat cannot be distinguished from a doctor’s coat. In general, people still identify the profession of pharmacist with that of a doctor, because the color and attributes of their coats are still the same. The purpose of this research is to design a special pharmacist’s practice coat that can differentiate it from a doctor’s practice suit with new innovations and designs that are more ergonomic and equipped with the right pocket placement and more functional. A practice coat is formal attire worn by professionals in the health or medical field with white or light blue characteristics, is designed to be easy, and gives a clean and professional look. Design thinking was implemented using the Hasso Plattner model through five stages, namely empathize, define, ideate, prototype, and evaluation. The results of the research are clothing in the form of a pharmacist’s coat with inner pocket and a model that can increase the efficiency and comfort of a pharmacist’s work.
Keywords: pharmacist coat, design thinking, ergonomics
Designing Company Profile of Betawi Cultural Village Setu Babakan in Photo Book
Authors: Made WIdiastuti Ni , Riana Irpan , Halim Muhammad
Published: March 2024

This research aims to create promotional media for Betawi Culture in the form of photo books. The photo book was designed in several stages, namely taking photos of all areas in Setu Babakan with the Rule of Third composition; filling the frame, diagonal, symmetry; low angle, eye level, high angle; available lighting and artificial lighting. The photo book was designed with Betawi identity colors, namely green and yellow on the front and back covers and a white background on the content. League Gothic font type for the title and Montserrat for the content were used. Content editing and styling were done using the Canva application. Then, it was tested and evaluated to produce a photo book with the title Setu Babakan Betawi cultural village. This photo book contains 80 pages about Setu Babakan and Betawi Culture along with descriptions.
Keywords: photo book, company profile, Betawi Culture, Setu Babakan, promotional media
Creating a Catalog of UMKM Setu Babakan Products for the Development of Betawi Culture to International Markets
Authors: Halim Muhammad , Akmalia Nurul , . Zaenab , Pathia Laelatul , Refo Alfarizi Waskita Mochammad
Published: March 2024

Betawi culture is a culture that is passed down through generations in Betawi society and is mostly prevalent in the capital city of Jakarta. One of the cultural products that still exist today are produced by the local Small and Medium Enterprise (SME). These products can be promoted through the medium of photography. However, in fact, these local SME products do not have the proper documentation that represents the culture. This research aims to display local SME product in Setu Babakan Betawi village in a visually attractive and informative way. So that, more people will know about the existence of these local SME products in Betawi Cultural village. The catalog will be made not only as media documentation but also as a branding medium to promote in the commercial or industrial sector. The catalog will be in the form of that contains complete list of the products sold and offered and display photos showing the product details. The catalog will be either in the form of print or digital so it could be seen by domestic or foreign tourists. The method used in this study is descriptive qualitative analysis; data were gathered through observation as well as interview with the SME owner regarding the products sold by them.
Keywords: Betawi Culture, SME, catalogs, product branding, tourists
Implementation of BMC to Look Up Student Entrepreneurship Mindset
Authors: Ridwan Muhamad , Ulfah Maria
Published: March 2024

This study aims to find out how the application of the BMC to look up the entrepreneurial mindset of students is applied at the Creative Media State Polytechnic. The research methods were qualitative and quantitative. The two research methods can be used together or combined in a concurrent study. BMC material is introduced first to students who have taken entrepreneurship practice courses. Students will be taught BMC material and its application. At this implementation stage, the actual student mindset will be observed first. After that, it will be measured quantitatively to determine the effect of applying BMC on the entrepreneurial mindset of students. The data analysis used is simple linear regression using the SPSS 16.0. Primary data were collected through interviews and observations of respondents to find out the actual shape of the entrepreneurial mindset of students at that time, while to measure the effect of BMC on increasing their entrepreneurial mindset a questionnaire was used with a Likert scale as the measurement.
Keywords: BMC, entrepreneurship, mindset
Implementation of the 3-O Approach As an Innovation in Radio Program Production
Authors: Ismed Mohammad , D. Mongkau Ronald , Amala Marventyo
Published: March 2024

Radio is one of the mass media that evolves along with the development of technology. Innovations are made not only in techniques, but also in broadcast program production. In the past, radio focused more on producing programs for On-Air and Off-Air, now radio has added a platform for producing its programs, that is Online. This innovation was carried out not only to be able to expand opportunities for advertising as a source of income, but also to meet the needs of listeners whose ways of consuming media have also changed along with the development of digital technology. This prompted the current research. The problem raised is how the implementation of On-air, Off-air, and also online approaches can be carried out in a broadcast radio program production. The purpose of this research is to find out and understand the implementation and its influence on the quality of programs on radio media. By using a qualitative approach and descriptive interview and observation methods, it is hoped that this research can describe the process of applying the On-Air, Off-Air, and Online approaches to radio broadcast programs. The results of this study are expected to provide solutions in improving the quality of radio broadcast programs which can provide great opportunities for advertising.
Keywords: radio program, 3-O, On Air – Off Air Online, radio vision
Compare Means Analysis of Domestic Tourists Habits: Daily Actions and Vacationing Actions in Rural Destinations
Authors: Voraseyanont Parameth , Supina Supina , Bellia Annishia Fristi , Augustine Lorenza Felicia
Published: March 2024

The concept of sustainability should be followed by all tourism destinations in Indonesia to ensure the balance of ecological, social/cultural, and economic impacts on all. One of the main concerns of the sustainability is the maintenance of environmental aspects, which can be measured in many ways, human behavior being the key to that. Therefore, initial profiling of tourist behavior can be a great start and can be applied to all tourism destinations in Indonesia. By knowing the general behavior of tourists (daily and vacationing behavior), local managers may adapt environmentally friendly tourism activities, which will actually increase the demand side (tourists). The findings of 134 respondents in this study show not only a comparison of each respondent’s profile but also a connection to previous related studies. Thus, future research may cross-examine the profiles as well as check their relations simultaneously.
Keywords: daily actions, vacationing actions, rural destinations, domestic tourists, compare means
Development of Basic Housekeeping Virtual Reality Learning Module For Students
Authors: Adryans Adryans , Putro Pirastyo Swastono , Y. Br Lumban Toruan Reny
Published: March 2024

The Virtual Reality (VR) Basic Housekeeping Module helps students to gain and experience practical experience even though they are studying from home. Polimedia as a vocational campus that prioritizes practice in transferring knowledge to students must look for new methods so that students continue to gain knowledge. The VR learning module development method that the author uses is the Waterfall SDLC (System Development Life Cycle ) method. The system design stages in this research are explained through process design using cases and sequence diagrams. In the design, the results are in the form of a VR application. Testing the system interface was declared good based on an assessment using 3 aspects (usability aspects, user aspects and interaction aspects).
Keywords: virtual reality, housekeeping, education, new media, interactive
A magyar bruttó villamosenergia-termelés struktúrájának alakulása 2010 és 2021 között
Authors: Bozsik Nándor , Bozsik Norbert , Tánczos Tamás
Published: March 2024

A magyar villamosenergia-termelés három pilléren nyugszik, a fosszilis, a nukleáris és a megújuló energiákon. Míg a hazai villamosenergia-termelés mintegy 6,5%-kal visszaesett 2010 és 2020 között addig a bruttó villamosenergia-felhasználás mintegy 10%-kal növekedett, ami a villamosenergia-import jelentős növekedését eredményezte. Az import növekedésének fő oka, hogy Magyarország olcsón vásárolhat áramot a szomszédos országoktól. Pozitív fejleménye az elmúlt időszaknak, hogy a megújulók egyre nagyobb szerepet játszanak a villamosenergia-termelésben. A megújuló energiafogyasztás növekedése a szén és a gáz felhasználás csökkenésével jár együtt, mely összhangban van üvegházhatású gázok kibocsátásának mérséklésével kapcsolatos EU-vállalásokkal és fontos tényező a klímaváltozás elleni küzdelemben. A villamosenergia-termelés és felhasználás kitettségének csökkentése érdekében fontos lenne a megújuló energiák további bővítése. Cikkünkben a magyar villamosenergia-termelés szerkezeti átalakulását elemeztük a 2010 és 2020 közötti időszakra vonatkozólag, kiegészítve a 2021-es év előrejelzéseivel. A kutatás során korrelációszámítást és lineáris regresszió vizsgálatot végeztünk, feltárva a lehetséges kapcsolatokat az energiahordozók között. Az eredmények azt mutatják, hogy a napelemes energiatermelés növekedése a szénalapú villamosenergia-termelés csökkenésével, míg a földgázalapú villamosenergia‑termelés növekedése a nettó villamosenergia import csökkenésével jár együtt. Magyarország számára a következő évtizedekben komoly kihívást jelent, hogy saját villamosenergia-szükségletét biztonságosan, gazdaságosan és környezetbarát módon tudja biztosítani.
A Mezőgazdaság 4.0 jelenségének vizsgálata és lehetséges trendjei
Authors: Dajka Máté Ferenc , Oláh Izabella
Published: March 2024

A Mezőgazdaság 4.0 egy az ipari fejlődés történetéből átvett kifejezés, amely arra utal, hogy a fejlődéstörténetben korábbi szakaszaiban mindig egy-két jelentős technológiai innováció állt a középpontban, amely hosszútávon meghatározta a szektor fejlődését. A jelen mezőgazdaságának esetében ezt a technológiai fejlődést a digitalizáció és az adatalapú gazdálkodás megjelenése jelenti. A mezőgazdasági fejlődés egyes szakaszai egymásra épülnek, előbbi elterjedése nélkül nem beszélhetünk az azt követő megjelenéséről sem: azaz a számítógépes rendszerek és a precíziós gazdálkodás nélkül, az adatalapú gazdálkodás megjelenése sem lehetséges. A mindennapi gazdálkodás során használt adatok különböző csoportokba oszthatóak, azonban ezek egy, integrált rendszerben való tárolása, illetve megfelelő módszerekkel történő feldolgozása megkönnyíti a gazdálkodást, a piaci versenyben előnyhöz juttatja a gazdálkodót. Az adatalapú gazdálkodást a korábbi innovációk terjedésével összehasonlítva az látszik, hogy egy új technológiai fejlődési ciklus korai szakaszában vagyunk. A 4.0 szakaszban a rendszerek fő funkciója a döntéstámogatás, de várhatóan a következő szinten döntéshozatalban is nagyobb funkciójuk lesz majd.
Fókuszban az alkalmazotti jóllét: lisztérzékeny munkavállalók életminőségének vizsgálata
Authors: Greutter Zoltán Gergely , Greutter-Gregus Éva , Szira Zoltán , Varga Erika Erzsébet
Published: March 2024

Az emberierőforrás-menedzsment (HRM) a szervezetekben alkalmazott stratégiák és gyakorlatok összessége, amelyek a munkaerő felvételét, kiválasztását, fejlesztését és fenntartását célozzák. A HRM kulcsfontosságú szerepet játszik az alkalmazottak jóllétének és hatékonyságának biztosításában. Tanulmányunka lisztérzékenység és az HRM közötti összefüggésekre fókuszál. A HRM szerepe a lisztérzékenység esetében az alkalmazottak támogatásában és beilleszkedésében rejlik. A HRM tevékenységek segíthetnek az alkalmazottak számára megfelelő táplálkozási lehetőségek biztosításában, például gluténmentes ételek elérhetőségével és információkkal való ellátásban, az alkalmazottak egészségi állapotának és jóllétének nyomon követésében, valamint a munkakörülmények és az alkalmazottak igényeinek igazításában. Az olyan kezdeményezések, mint az alkalmazottak oktatása és tudatosságának növelése a lisztérzékenységről, valamint a munkakörnyezet és a szervezeti politikák alkalmazkodása a speciális étrendi igényekhez, hozzájárulhatnak a lisztérzékenységgel élő alkalmazottak jobb munkahelyi élményhez és eredményességéhez. Tanulmányunk rámutat a HRM jelentőségére a lisztérzékenységben szenvedő alkalmazottak szempontjából, és hang-súlyozza az olyan HRM intézkedések fontosságát, amelyek a megfelelő támogatást és feltételeket biztosítják számukra, hozzájárulva az alkalmazottak egészségéhez, elégedettségéhez és produktivitásához, ily módon a szervezet hosszú távú sikeréhez.
Investigating and ranking the factors affecting the failure of entrepreneurship development in the tourism industry : Case study of Shiraz City, Iran
Authors: Hadigheh Morabi Jouybari , Ritter Krisztián
Published: March 2024

The aim of this study is to investigate and prioritize the factors that contribute to the failure of entrepreneurship development in the tourism industry in Shiraz, using the Analytical Hierarchy Process (AHP) method. The first step involved reviewing the scientific literature and consulting with experts to identify 20 factors that affect entrepreneurship development in the tourism industry, which were then grouped into five main factors. A hierarchical decision tree was created to guide the research process. The opinions of 22 experts and specialists were obtained through a paired comparison questionnaire designed specifically for the AHP method. Factors were then weighted and ranked using the AHP technique and Choice Expert software. The findings indicate that the primary factors contributing to the lack of progress in entrepreneurial development within the tourism industry of Shiraz City can be categorized as follows: services-related factors hold the highest significance, personal and psychological factors follow closely in second place, social and cultural factors, economic policies, government laws, and financial and economic factors hold the subsequent importance levels, Furthermore, the sub-factors within each main category were assessed and ranked, leading to the formulation of practical recommendations based on these priorities.
A gödöllői német nemzetiségi nyelvoktatás helyzetének és hatásának elemzése
Authors: Kalocsai Ottó , Kolta Dóra
Published: March 2024

The study analyses the situation of the German minority in Gödöllő and the possibilities of language education, the added value of teaching in the national minority language for children, the impact of national minority language education on attitudes towards language learning and further education, the feeling of belonging to the national minority, and the sense of national community. The impact of the socialisation environment at home, culture and family, language use, will also be analysed. Drawing on the literature, we will review the historical and legislative background, the language use of Germans in Hungary, and the guidelines for national minority schooling. The study is based on a presentation of the German national minority language teaching at the Petőfi Sándor Primary School in Gödöllő. Based on this, an online questionnaire survey was carried out, in which 105 pupils (36 national minority language speakers and 69 non-national minority language speakers) were interviewed, focusing on the links between language socialisation and mother tongue education. The results from the questionnaires were processed using SPSS and Microsoft Excel.
Effect of Stad Model of Cooperative Learning on Students’ Learning Outcome on Nomenclature of Hydrocarbon
Authors: Nanor Emmanuel , Mahama Alhassan , Hanson Ruby
Published: March 2024

Students Team Achievement Division model of cooperative learning was employed to examine its effect on the learning outcome of students in the concept of nomenclature of hydrocarbons. Forty-one (41) students were purposively sampled for the study. The study employed an action research design. Pre and post-intervention tests were conducted before and after the intervention respectively to determine the effect of the intervention on students’ learning outcome. The findings from the study showed that the STAD model of cooperative learning significantly improved learning outcome of the students in nomenclature of hydrocarbons. The study concluded that STAD model of cooperative learning was an effective learning model for improving students’ learning outcome. The STAD model of cooperative learning provided conducive environment for active participation of learners resulting in meaning construction of knowledge. The intervention provided opportunities for developing analytical and critical thinking skills. The study therefore recommended the use of STAD model of cooperative learning for students owing to its effectiveness in improving learning outcome.
My Data Are Ready, How Do I Analyze Them: Navigating Data Analysis in Social Science Research
Authors: Fodouop Kouam Arthur William
Published: March 2024

This paper offers a practical guide for researchers to effectively analyze their data in social science research, addressing the challenges and pitfalls commonly encountered in data analysis. By exploring various data analysis techniques, highlighting key challenges such as data quality issues and statistical assumptions violations, and providing practical tips and guidelines, this study fills a gap in the existing literature by offering a comprehensive approach to navigating data analysis in social science research. The significance of this study lies in its potential to improve the quality and reliability of research findings in the social sciences, equipping researchers with the necessary knowledge and skills to conduct robust data analysis. This study is a valuable resource for researchers seeking to enhance their analytical skills, avoid common pitfalls, and advance knowledge in their field of study.
辐射制冷材料的发展与进步
Authors: 金城  , 裴刚  , 赵斌
Published: March 2024

工业时代以来，化石能源的大量使用导致温室气体的排放量不断增加，进而加速全球变暖。制冷能耗是能源消耗的重要组成部分，约占全球总能源消耗的20%，因此迫切需要发展低能耗、高效且环保的新型制冷技术以满足不断增长的制冷需求。辐射制冷因其零能耗制冷特性受到国内外学者的广泛关注，它的基本原理是地表物体通过大气层在“大气窗口”（8–13 μm）波段的高透过特性，将自身废热以热辐射的形式散失至低温太空，从而获得被动降温和制冷效果。早期阶段，辐射制冷的研究和探索局限于夜间工况，因此辐射制冷材料的核心在于红外发射率的优化与调控。相比于单纯的夜间辐射制冷，日间辐射制冷还可以在太阳辐射条件下实现被动降温与制冷，因此更具应用价值。
Natural Revolution: Sharing value with the first owners. The case of AJE in Peru
Authors: Landeo Romina , Sordo Kabu , Cordova Miguel , Ilieva María
Published: March 2024

This study reveals how a company designed and developed a shared value initiative from a new product line, contributing to the sustainable development goals in Peru. The paper aims to identify the main characteristics of the collective impact achieved by Shared Value strategies of the Peruvian multinational company, AJE Group. The authors use an empirical case study of one of the biggest multinational companies in Peru to build upon Kramer’s model for shared value initiatives and analyze each of its five elements for shared value. The findings of this paper allow practitioners, as well as policy-makers, to identify sustainable managerial practices and opportunities for sustainability-oriented public policy design which can be implemented in other organizations.
Des idées pour le travail d’influence : comprendre les chemins d’impact dans la réponse aux crises
Authors: Clark Louise , Carpenter Jo , Taylor Joe
Published: March 2024

Le programme Covid-19 Responses for Equity (CORE) est une initiative sur trois ans financée par le Centre de recherches pour le développement international (CRDI) du Canada, qui a rassemblé 20 projets issus des pays du Sud afin de comprendre les impacts socio-économiques de la pandémie de Covid-19, d’améliorer les réponses existantes et d’élaborer de meilleures options politiques pour favoriser la relance. Les recherches ont porté sur 42 pays d’Afrique, d’Asie, d’Amérique latine et du Moyen-Orient afin de comprendre comment la pandémie a affecté les régions et les personnes les plus vulnérables en aggravant les fragilités existantes. Les projets de recherche ont couvert un large éventail de thèmes, notamment les politiques macroéconomiques de soutien et de redressement, l’appui aux activités économiques essentielles et la protection des entreprises informelles, des petits producteurs et des femmes au travail, ainsi que la promotion d’une gouvernance démocratique pour renforcer la responsabilité, l’inclusion sociale et l’engagement civique. L’Institute of Development Studies (IDS) a apporté aux partenaires de recherche du programme CORE un appui à l’application des connaissances afin de maximiser l’apprentissage généré dans l’ensemble du portefeuille de recherche et d’approfondir l’engagement auprès des gouvernements, de la société civile et de la communauté scientifique. Dans le cadre de ce soutien, l’équipe d’application des connaissances de l’IDS a travaillé avec les équipes de projet du programme CORE pour reconstruire et réfléchir à leurs chemins d’impact afin de faciliter l’échange de connaissances Sud-Sud sur des stratégies efficaces pour l’impact de la recherche et de partager l’apprentissage sur la façon dont la cohorte du programme CORE a influencé les politiques et produit des changements. Ce rapport présente une vue d’ensemble de ces chemins d’impact et des enseignements tirés d’une sélection de projets choisis pour représenter la diversité des approches visant à mobiliser les décideurs politiques, la société civile et les médias afin de générer et de partager des données probantes des effets de la pandémie sur différents groupes vulnérables.
A Proof of the Riemann Hypothesis Based on a New Expression of the Completed Zeta Function
Authors: Zhang Weicun
Published: March 2024

The Riemann Hypothesis (RH) is proved based on a new absolutely convergent expression of $\xi(s)$, which was obtained from the Hadamard product, through paring $\rho_i$ and $\bar{\rho}_i$, and taking the possible multiple zeros into consideration with their real (unique and unchangeable) multiplicities, i.e. $$\xi(s)=\xi(0)\prod_{\rho}(1-\frac{s}{\rho})=\xi(0)\prod_{i=1}^{\infty}(1-\frac{s}{\rho_i})(1-\frac{s}{\bar{\rho}_i})=\xi(0)\prod_{i=1}^{\infty}\Big{(}\frac{\beta_i^2}{\alpha_i^2+\beta_i^2}+\frac{(s-\alpha_i)^2}{\alpha_i^2+\beta_i^2}\Big{)}^{d_{i}}$$ where $\xi(0)=\frac{1}{2}$, $\rho_i=\alpha_i+j\beta_i$ and $\bar{\rho}_i=\alpha_i-j\beta_i$ are the complex conjugate zeros of $\xi(s)$, $0<\alpha_i<1$ and $\beta_i\neq 0$ are real numbers, $d_i\geq 1$ is the real multiplicity of $\rho_i$, $\beta_i$ are arranged in order of increasing $|\beta_i|$, i.e., $0<|\beta_1|\leq|\beta_2|\leq|\beta_3|\leq \cdots$, $i =1,2,3, \cdots, \infty$.\\ Then, according to the functional equation $\xi(s)=\xi(1-s)$, we have $$\prod_{i=1}^{\infty}\Big{(}1+\frac{(s-\alpha_i)^2}{\beta_i^2}\Big{)}^{d_{i}}=\prod_{i=1}^{\infty}\Big{(}1+\frac{(1-s-\alpha_i)^2}{\beta_i^2}\Big{)}^{d_{i}}$$ which, owing to the uniqueness and unchangeableness of $d_i$ (see Lemma 3 for the proof details), is equivalent to $$\Big{(}1+\frac{(s-\alpha_i)^2}{\beta_i^2}\Big{)}^{d_{i}}=\Big{(}1+\frac{(1-s-\alpha_i)^2}{\beta_i^2}\Big{)}^{d_{i}} \Leftrightarrow \alpha_i=\frac{1}{2}; 0<|\beta_1|<|\beta_2|<|\beta_3|<\cdots; i =1,2,3, \cdots, \infty$$ Thus, we conclude that the RH is true.
How Simply One Can Considerably Improve Performance of the Gas Stripper at the GSI UNILAC (Proposal)
Authors: Varentsov Victor
Published: March 2024

Here we propose a simple way in which one can considerably improve performance of the gas stripper setup at the GSI UNILAC. To do so, it will be enough to replace inside the main GSI stripper chamber the present nozzle and the short windowless storage gas cell (for pulsed gas-jet operation mode) by a simple conical diverging nozzle combined with a gas catcher tube placed on the axis of gas-jet at some distance downstream the nozzle exit. As a result, the background pressure in the main and differentially pumped adjacent vacuum chambers of the gas stripper at the GSI UNILAC will dramatically reduce, and it will make possible to achieve the required optimal thickness of gas targets. The pulsed gas stripper operation is simply realized by implementing a commercially available fast gas valve connected to the nozzle entrance. Moreover, the ion beam pulses repetition rate can be increased and it will allow for the considerably higher average intensity of the ion beams extracted from the GSI UNILAC. Performance of the proposed GSI UNILAC gas stripper modification we explored by means of detailed computer experiments, which give a realistic description of supersonic gas jets flowing out the nozzle into vacuum. Results of these computer experiments have presented and discussed.
Evaluation of the Mechanical Behavior of Asphaltic Mixtures Utilizing Residue of the Processing of Iron Ore
Authors: Guimarães Antonio Carlos Rodrigues , de Arêdes Márcio Leandro Alves , Castro Carmen Dias , Coelho Lisley Madeira
Published: March 2024

The increasing world steel production has contributed to the generation of million tons of mining residues. But, the huge demand of aggregates for the execution of pavements and the lack of raw material for this purpose, the research for new materials to be used in this area has become vital. The sandy residue that was studied was collected at Mariana– MG county, which was the result of the iron ore processing of the company Samarco S.A. This research has as objective the evaluation of the mechanical behaviour of asphalt mixtures utilizing residue from the processing of iron ore in substitution of the fine aggregate in the asphalt mixtures of the Asphaltic Concrete type, aiming its use in the rolling layer of a road pavement. To do so, the Marshall dosage of three asphalt mixtures and the mechanical tests characterized by the resilient modulus and fatigue life at a controlled tension were performed. It was also performed the determination of the optimum content by the Superpave dosage method conducted in two of these mixtures to obtain the Compaction Index and the mechanical behaviour by the Flow Number value. Concluded that the residue is compatible with all current standards for the use in asphalt mixtures, being able to be used in the CBUQ rolling layer, showing an improvement in the behaviour compared to the standard mixture.
Generalized Electron Emission Theory for One-Dimensional Conducting Materials
Authors: Kim Heetae , Park Chang-Soo , Yu Soon Jae
Published: March 2024

This research focuses on exploring generalized electron emissions in one-dimensional conducting materials, specifically examining field emission and thermionic emission. Additionally, the study investigates one-dimensional thermal radiation. The current density is derived for both one-dimensional thermionic emission and one-dimensional field emission. A generalized current density in one dimension is devised, taking into account arbitrary accelerating fields and temperature conditions. The formula for the one-dimensional current density is depicted with accelerating field and temperature across various work function materials. The current is also represented as a function of both temperature and electric field for various temperatures.
Fiber Structure and Stability Theorems for Symmetry Breaking Transitions
Authors: Bodnia Eve
Published: March 2024

We discuss three key points: defining mathematically the notions of phase, symmetry breaking, topological defects and their stability in a formal language of homotopy theory and fiber bundle formalism; postulating and proving two theorems for successive symmetry breaking scenarios in condensed matter physics and cosmology, and demonstrating application of theorems to superfluid Helium 3 and Kibble-Lazarides-Shafi (KLS) walls, supporting and mathematically justifying the results of [Volovik, 2020].
Surface Chalking upon Weathering of Dark-Colored PVC Articles and Relevant Stabilizers
Authors: Gardi Stefano , Giannone Lorenzo , Sarti Gianfranco , Sarti Gianluca
Published: March 2024

PVC items are environmentally friendly as, unlike polyolefins, they are mainly based on chlorine, one of the most abundant elements on earth. However, in the eco-design context, articles' durability plays the crucial role, contributing to the enhancement of their sustainability. In this framework the research on additives capable of increasing the weatherability of outdoor articles is essential. The theory section of the paper reviews the mechanisms of weathering leading to PVC degradation that undermine the durability of items such as window frames or roller shutters. The weathering of PVC items is a complex phenomenon involving photo-chemical and secondary chemical reactions, that yields the formation of conjugated polyene sequences underskin in absence of oxygen and carbonyls in the surface. Here the chain scission of the polymer backbone occurs, bringing the disintegration of the surface of the item and causing the typical discoloration called chalking, especially evident in dark-colored articles. In the experimental section of the paper the effect of different acid scavengers on the item weathering has been studied with natural outdoor and two accelerated exposures, xenon-arc and Q-UV testing devices. Results confirm that some acid scavengers are efficient in preventing chalking, but some are ineffective or even detrimental. Thus, the PVC formulations of durable articles upon weathering still depend on a complex choice of the appropriate ingredients, and several outdoor and indoor accelerated weathering tests are needed to predict the articles' lifetime.
Fluorescent Nanodiamonds for Nanoscale Thermometry in Biology
Authors: Ermakova Anna
Published: March 2024

Color centers in diamond and nanodiamonds can be utilized as quantum sensors for measuring various physical parameters, particularly magnetic and electric fields, as well as temperature. Due to its small size and possible surface functionalization, fluorescent nanodiamonds are attractive systems for biological and medical applications since they can be used for intracellular experiments. This review focuses on fluorescent nanodiamonds for thermometry with nanoscale spatial resolution for living systems. The current state of the art, possible further development, and potential limitations will be discussed here.
N-acetylcysteine Attenuates Cisplatin Toxicity in Cerebrum and Lung of Young Rats with Artificially Produced Protein Deficiency
Authors: Calderon Guzman David , Osnaya Brizuela Norma , Ortiz Herrera Maribel , Valenzuela Peraza Armando , Labra Ruiz Norma , Juarez Olguin Hugo , Santamaria Del Angel Daniel , Barragan Mejia Gerardo
Published: March 2024

Neurotoxicity is a major obstacle to the effectiveness of cisplatin (CDDP) in cancer chemotherapy. In this process, oxidative stress and inflammation are considered to be the major mechanisms involved. The aim was to study the influence of protein quantity on some oxidative parameters in brain and lung of rats treated with cisplatin and N-Acetylcysteine (NAC). Four groups of Wistar rats (6 each one) were fed with a protein diet at 7% for 15 days. Thereafter, the groups were given either a unique dose of cisplatin® 5mg/kg or Acetylcysteine® 5mg/kg as follows: group 1 (control), NaCl 0.9% vehicle; group 2, Cisplatin; group 3, NAC; and group 4, NAC + Cisplatin. The animals were sacrificed, a sample of blood were used to measure blood triglycerides and glucose. The brain and lung were used to assay lipids peroxidation (TBARS), glutathione (GSH), serotonin metabolite (5-HIAA), catalase and the activity of Ca+2, Mg+2 ATPase, using validated methods. TBARS, H2O2 and GSH decreased significantly in cortex and cerebellum/medulla oblongata of groups treated with CDDP and NAC. Total ATPase showed a significant increase in the lung and cerebellum/medulla oblongata, while 5-HIAA depicted the same tendency in cortex of the same group of animals.
5-HIAA and ATPase increase during NAC and Cisplatin administration resulted in brain protection. This effect could even be more powerful when membrane fluidity is increased; thus, proving the efficacy of combined NAC and CDDP drug therapy, which appears to be a promising strategy for future chemotherapy in malnourished patients.
Discussion and Demonstration of RF-MEMS Attenuators Design Concepts and Modules for Advanced Beamforming in the Beyond-5G and 6G scenario – Part 1
Authors: Tagliapietra Girolamo , Giacomozzi Flavio , Michelini Massimiliano , Marcelli Romolo , Sardi Giovanni Maria , Iannacci Jacopo
Published: March 2024

This paper describes different variants of broadband and simple attenuator modules for beamforming applications, based on Radio Frequency Micro Electro-Mechanical Systems (RF-MEMS), framed within Coplanar Waveguide (CPW) structures. The modules proposed in the first part of this work differ in their actuation voltage, topology, and desired attenuation level. Fabricated samples of basic 1-bit attenuation modules, characterized by a moderate footprint of 690 x 1960 µm2 and aiming at attenuation levels of -2, -3 and -5 dB in the 24.25-27.5 GHz range, are presented in their variants featuring both low actuation voltages (5-7 V) as well as higher values (~ 45V), the latter ones ensuring larger mechanical restoring force (and robustness against stiction). Beyond the fabrication non-idealities that affected the described samples, the substantial agreement between simulations and measurement outcomes proved that the proposed designs could provide precise attenuation levels up to 40 GHz, ranging up to nearly -3 dB and -5 dB for the series and shunt variants, respectively. Moreover, they could be effective building blocks for future wideband and reconfigurable RF-MEMS attenuators. In fact, in the second part of this work, combinations of the discussed cells and other configurations meant for larger attenuation levels will be investigated.
An Experimental Approach to Improve the Geometric Accuracy of Micro-features Fabricated by Stereolithography (SLA)
Authors: Modica Francesco Giovanni , Basile Vito , Fassi Irene
Published: March 2024

In this paper, we present an experimental procedure to enhance the dimensional accuracy of fabrication via Stereolithography (SLA) of features at the micro-scale. Using a custom benchmark part, deviations in feature dimensions (micro-pores diameters and depths) were detected and measured by confocal microscopy. Samples characterization and experimental observations allowed the identification of inaccuracy sources, mainly due to the laser beam scanning strategy and to the incomplete removal of uncured liquid resin in post-processing (i.e., IPA washing). As a technology baseline, the measured dimensional errors on pores diameters were up to -46%. A compensation method of the nominal laser spot diameter (85m) was defined and implemented resulting in relevant improvements in dimensional accuracy of 9.8% and 11.3% on full-open pores diameter and depth, respectively. Further investigation was performed on a customized test part to adjust the calibration procedure. The measurements revealed that the estimate of the laser beam spot size is 968m. Measurements on micro-pores having different sizes revealed that a constant compensation parameter (i.e., C=85, 96, 120m) is not fully effective at the micro-scale, where average errors still remain at -24%, -18.8%, and -16% for compensations equals to 85, 96 and 120m, respectively. A further experimental campaign allowed the identification of an effective nonlinear compensation law where the compensation parameter depends on the micro-feature size C= f (D). Results show a sharp improvement in dimensional accuracy on micro-pore fabrication, with errors consistently below +8.2%. The proposed compensation method can be extended for the fabrication of any micro-features without restrictions on the specific technology implementation. Concerning the inaccuracy introduced by the laser path, experimentation with a customized part allowed the optimization of the part orientation to reduce the errors and their differences along the X and Y machine axes.
A Step Forward Understanding Directional Limitations in Markerless Smartphone-based Gait Analysis
Authors: Martiš Pavol , Košutzká Zuzana , Kranzl Andreas
Published: March 2024

The progress in markerless technologies is bringing clinicians tools to rapidly evaluate tests such as Timed Up and Go (TUG) without compromising the time of the assessment, yet it raises questions about the potential trade-off in accuracy compared to traditional marker-based systems, suggesting that the precision of these evaluations is not yet conclusively established. The OpenCap system is an easy tool to process 3D kinematics with two iPhone cameras placed in front of the subject. Previous research has primarily focused on walking and movement towards the cameras with the subject facing the cameras (WF) and thus has been unable to disentangle the differences in the movement directions. We have compared the OpenCap system with a standard marker-based system for both walking directions. In OpenCap, we found significantly worse results capturing walking facing away from the cameras (RW). Compared to the marker-based system, our findings indicate troubles measuring kinematic parameters but provide good accuracy in measuring spatial-temporal parameters. These insights pave the way for refining markerless assessment technologies, potentially enhancing their utility in clinical settings.
Identification of High-Order Nonlinear Coupled Systems Using a Data-Driven Approach
Authors: Velázquez-Sánchez Rodolfo Daniel , Escobedo-Alva Jonathan Omega , Peña-García Raymundo , Tapia-Herrera Ricardo , Meda-Campaña Jesús Alberto
Published: March 2024

Most works related to the identification of mathematical nonlinear systems make one suppose that such approaches can always be directly applied to any nonlinear system. This misconception produces a great deal of discouragement when the obtained results are not the expected ones. Thus, the current work hypothesizes that the most information one has about the mathematical structure of the model, the most precise the identification result should be. Therefore, a variant of the Sparse Identification of Nonlinear Dynamics (SINDY) approach is presented to obtain the full mathematical nonlinear model of a high-order system with coupled dynamics, namely, a commercial quadcopter. Furthermore, due to its high sensitivity to inputs, a control system is devised using the identified model to stabilize the quadcopter. This illustrates the effectiveness of the proposed identification method.
Exploring the Accuracy of ab Initio Prediction Methods for Viral Pseudoknotted RNA Structures
Authors: Medeiros Vasco Miguel , Pearl Jennifer M , Carboni Mia , Er Ece Melis , Zafeiri Stamatia
Published: March 2024

The prediction of tertiary RNA structures is significant to the field of medicine (e.g. mRNA vaccines, genome editing), and the exploration of viral transcripts. Though many RNA folding software exist, few studies have condensed their locus of attention solely to viral pseudoknotted RNA. These regulatory pseudoknots play a role in genome replication, gene expression, and protein synthesis. This study explores five RNA folding engines that compute either the minimum free energy (MFE) or the maximum expected accuracy (MEA). These folding engines were tested against 26 experimentally derived short pseudoknotted sequences (20-150nt) using metrics that are commonly applied to software prediction accuracy (e.g. F1 scoring, PPV). This paper reports higher accuracy RNA prediction engines (pKiss) when compared to previous iterations of the software, and when compared to older folding engines. They show that MEA folding software does not always outperform MFE folding software in prediction accuracy when assessed with metrics such as percent error, sensitivity, PPV, and F1 scoring when applied to viral pseudoknotted RNA. Moreover, the results suggest that thermodynamic model parameters will not ensure accuracy if auxiliary parameters such as Mg2+ binding, dangling end options, and H-type penalties are not applied. The observations reported in this paper highlight the quality between different ab initio prediction methods while enforcing the idea that a better understanding of intracellular thermodynamics is necessary for a more efficacious screening of RNAs.
Life Cycle Assessment of Wheat Straw Pyrolysis With Volatiles Fraction Chemical Looping Combustion
Authors: Mendiara Teresa , Navajas Alberto , Abad Alberto , Pröll Tobias , Munárriz Mikel , Gandía Luis M. , García-Labiano Francisco , De Diego Poza Luis Francisco
Published: March 2024

Keywords: Biomass pyrolysis, Chemical Looping Combustion, Life Cycle Assessment, Environmental Impacts, Carbon Footprint.
İmgelerin Eleştirel Gücü ve Tarih İmgesi Üzerine Bir İnceleme
Authors: MUTLUER Kenan
Published: March 2024

İmgelerin hakiki bilgi edinme yolundaki statüsü felsefe tarihi boyunca çeşitli biçimlerde tartışılagelmiştir. Geleneksel metafizikten Kant’ın transendental felsefesine kadar epistemolojik ve ontolojik olarak yanılsamalara, sanı ve kanaatlere yol açtığı ileri sürülmüştür. Duyum ile algıya dayanan duyusal ya da hissedilir dünyanın nesneleri, kavram ve fikirlere göre çok daha düşük bir mertebede yer almıştır. Kant’ın transendental felsefesiyle birlikte hayal-gücü ile imgeler, zihinde üretimi ve canlandırılması bakımından asli bir konuma yerleştirilmiştir. Günümüzdeyse imgeler, bilişsel kapasitelerin yanında, kişisel ve toplumsal yaşımı yeniden kurma ve temsil etme bağlamında oldukça kurucu bir role sahiplerdir. Toplumsal yaşamı yeniden kurma gücü, kültür inşasındaki merkezi konumu ve toplumsal bellek yaratımındaki etkin rolü, imgeleri tarih ve gelenek kavramlarıyla birlikte yeniden düşünmenin önüne açmıştır; böylelikle imgeler aracılığıyla zaman-dışı ya da tarih-dışı bir noktada konumlanmanın felsefi olanakları etik ve politik bir eksende tartışılabilir. Bu çalışmada öncelikle, imgelerin ele alınış biçiminin felsefe tarihindeki serüvenini betimledikten sonra, Erwin Panofskyci ikonoloji geleneği ve William Mitchell ile Gottfried Boehm gibi “resimsel dönüş” temsilcileri ekseninde, imgelerin çağdaş tartışmalarındaki konumu ele alıyoruz. Ardından imge ve tarih ilişkisini, tarih felsefesinin temel tartışmaları ekseninde tartışıp “tarih imgesi” kavramını derinleştiriyoruz. Daha sonra, imge ile tarih imgesi kavramını, Walter Benjamin’in “diyalektik imge” ve “aura” kavramıyla ilişkilendiriyoruz. Böylelikle tarih, gelenek, kültür, kavramlarını imgelerin eleştirel gücü ekseninde değerlendirmeyi, imgelerin eleştirel gücünü ise “hümanite” kavramıyla birlikte ele almayı öneriyoruz.
MODIFIABLE AND NON-MODIFIABLE RISK FACTORS FOR TUBERCULOSIS AMONG ADULTS IN INDONESIA: A SYSTEMATIC REVIEW AND META-ANALYSIS
Authors: NINDREA Ricvan Dana , SUSANTI Rika , INDIKA Pudia M , MAISA Benny Alexander , SUKMA Muthia , ROSALINA Linda , WIDYA Astri , TAUFIQA Zuhrah , AGUSTIAN Dede Rahman , FITHRIA Rahmi , PUTRI Nomira , NINGSIH Dianni Arma Wahyu Setia , LUBIS Bella LucintaRillova Arif , MARDIAH Ainil , EZEDDIN Maudy Octarini , LINDA Nova , MARISA Yosa Tamia , RAHMI Afriyeni Sri , SARI Anggun Permata , OKTAVIANA Mimin , HUMANI Flori Puspa , AMSAL Mochammad Fariz
Published: March 2024

Background: Controlling tuberculosis (TB) determinant factors in Indonesia is one way TB control in the community. A review is needed to explore risk factors for TB in Indonesia as the key strategies for accelerating the TB preventive program. Aim: The purpose of this review was to determine modifiable and non-modifiable risk factors for TB among adults in Indonesia. Methods: A meta-analysis was undertaken to review current studies related to modifiable and non-modifiable risk factors for TB among adults in Indonesia. A search of PubMed, ProQuest, and Google Scholar for related articles published (January 2000 until December 2023). The Pooled Odds Ratio (POR) from the acquired data was calculated with a 95% CI. The fixed and random effects analysis was performed. The results were presented as forest plots, and Egger's test was used to examine study bias. Review Manager (RevMan) 5.4 and Stata 14.2 were used to process and analyze all of the data. Results: This study results revealed the POR of non-modifiable risk factors (family history of TB) for TB among adults in Indonesia was 6.08 (95% CI 2.99-12.34). Based on modifiable risk factors, it is known household contact has the highest POR (6.01, 2.57-14.04), followed by malnutrition (5.86, 2.50-13.69), inappropriate ventilation (5.57, 1.74–17.86), diabetes mellitus (4.92, 3.04-7.96), smoking behavior (3.24, 2.22-4.72), and low-income level (2.34, 1.42-3.87). Conclusion: Based on significant factors that are related to TB incidence, the results of this review may be valuable to the government in identifying the optimal strategy for TB prevention among adults.