bluuebunny/crossref_metadata_2025 huggingface dataset:
RANCANG BANGUN PENGELOLAAN BANDWIDTH INTERNET MENGGUNAKAN METODE QUEUE TREE DENGAN ROUTER MIKROTIK DI PT XYZ
Authors: Salim Agus , Wijaya Tanto , Pusparini Nur Nawaningtyas
Published: February 2024

Basically, the use of internet activities in companies is very dense, causing various problems, among the problems encountered related to internet connection is bandwidth usage that has not been optimally regulated, so that no matter how much bandwidth capacity is available, it will not meet the needs of internet bandwidth usage if it is not managed properly. . In order for internet user bandwidth allocation to be distributed evenly, bandwidth management is needed to overcome the existing bandwidth limitations. Bandwidth management aims to find a solution so that all user computer devices get internet bandwidth allocation and can find out how to manage good bandwidth so that user devices get a fair or even distribution of bandwidth. The methodology for implementing bandwidth management with the queue tree method is to observe a running network system, identify problems, collect data, then design a configuration system. After going through the design process then carrying out the configuration stage, and if the configuration is successfully applied then proceed to the testing phase using several user computers assisted by using the wireshark application to find out incoming or received data packets, the next stage is monitoring using monitoring applications such as Torch Winbox, speedtest or wireshark and the final stage is evaluation or management such as configuration backups and so on. This research and testing also takes into account Quality of Services (QoS) parameters such as throughput, delay, jitter, and packet loss to find out in more detail the calculation of packet traffic that has been captured by the wireshark application. So that with good design, proper configuration, careful monitoring, an even, optimal bandwidth usage and quality internet connection is produced, so that the implementation of the queue tree method of bandwidth management provides an effective solution in managing bandwidth allocation.
METODE UAT PADA IMPLEMENTASI SISTEM INFORMASI PENYEWAAN DAN PERAWATAN MESIN FOTOCOPY BERBASIS WEB
Authors: Taufik Ahmad , Doharma Rouly , Saputro Wahid Hadi
Published: February 2024

The Information System is a collection of systems in its aspect consisting of software, hardware and brainware in a structured manner with performance in a gradual and interconnected process so as to create a specific product that is needed by the user, with regard to copiers in companies generally have processes such as leasing and maintenance, then along with the development of a website-based information system that can make it easier for users to carry out the process of renting and maintaining photocopiers, but from the rental and maintenance of photocopiers there are several problem factors that influence it, namely, customers experience difficulties in renting photocopiers which have to wait for stock from the company if stock is not available. available so that it takes quite a long time during the rental process, in the process of handling photocopier maintenance from customers the procedure takes a long time to repair because there is no system that support in service delivery as well as miss communication between technicians and customers in carrying out photocopier maintenance for spare parts needs so that the technician brings the wrong spare parts when the customer experiences problems from the photocopier, the purpose of which is a reference for research is to create an information system for leasing and maintaining photocopiers for staff and customers at PT. Micostar Karyagraha, Based on these 3 problems as a solution, an information system is needed for the process of renting and maintaining photocopier machines in a website-based performance, besides that tests were carried out using UAT on 50 respondents on 28 staff and 22 customers, the results are good with an average percentage of 82.36%, the final stage of the results of the machine rental and maintenance information system photocopies made for staff and customers on a website basis.
PENERAPAN MODEL PEMBELAJARAN GQGA UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA SMP
Authors: Rahmat Edelbertus , Mei Maria Fatima , Meke Konstantinus Denny Pareira
Published: February 2024

The objectives of this study are 1) to determine student activities while applying the GQGA learning model to comparative materials; and 2) to find out the improvement of students' mathematics learning outcomes on comparative materials. The type of research used was Classroom Action Research (CAR). CAR is carried out in two cycles where each cycle is made in three meetings. Data collection techniques are learning outcomes tests and observations of learning implementation. The data analysis technique used qualitative data analysis techniques and quantitative data. The results showed that the application of the GQGA learning model could improve students' mathematics learning outcomes and student activities. This can be seen from the results of the analysis of student activity observations in the first cycle, which is 51.5%, and in the second cycle it reaches 91.5% and the results of the students' mathematics learning test in the first cycle is 58% and in the second cycle it reaches 92%, exceeding the KKM. Therefore, the researcher concludes that the application of the GQGA learning model can improve students' mathematics learning outcomes in comparative material.
PENDIDIKAN KEWIRAUSAHAAN DALAM KESIAPAN BERWIRAUSAHA MAHASISWA
Authors: Husain Ahmad , Hafid Radia , Mahmud Melizubaida , Ilato Rosman , Bahsoan Agil
Published: February 2024

The present research aimed to determine the effect of entrepreneurship education on students entrepreneurial readiness at the Department of Economics Education, Universitas Negeri Gorontalo, Class of 2019. This research employed a quantitative approach with a survey research method. The primary data were obtained by distributing questionneires to students at the Study Program Of Economics Education, Class of 2019, with a total sample of 35 respondens. In addition, the data analysis technique used simple linear regeression. The research discovered that entrepreneurship education affected student’s entrepreneurial readiness at the Department of Economics Education, Universitas Negeri Gorontalo, Class of 2019. The effect of entrepreneurship education on student’s entrepreneurship readiness was 40,1%, while the remaining 59,9% were affected by variabels that were not examined in this research.
The Use of Artificial Intelligence in Scientific Research with Integrity and Ethics
Authors: Limongi Ricardo
Published: February 2024

This paper addresses the evolution of Artificial Intelligence (AI) in scientific research and the ethical and integrity challenges that arise with its integration. AI has become an indispensable tool for researchers, accelerating discoveries and optimizing processes. However, using these algorithms raises concerns about bias, transparency, and accountability. The ability of machines to learn and create knowledge challenges the paradigms of authorship and credibility, putting integrity and ethics under new scrutiny. The discussion emphasizes robust ethical governance, collaboration among stakeholders, ongoing education, and the creation of transparent and auditable algorithms. It further highlights the importance of maintaining ethics and integrity at the heart of AI research to ensure its advancement benefits humanity fairly and responsibly, emphasizing the need for a holistic approach involving education, transparency, accountability, and active participation of multiple stakeholders. Finally, it reiterates that as we embark on this new era of AI-driven discovery, we must embrace both the opportunities and the ethical challenges it presents, ensuring that the use of AI in scientific research continues to benefit humanity by promoting knowledge and well-being.
Effectiveness of Evidence-Based Practice (EBP) Training Program on the Level of Competencies of Faculty Members in a School of Nursing
Authors: Febes Catalina T. Aranas, RN, MAEd, MAN
Published: February 2024

The vision for the future of nursing has led to convergence of knowledge, quality, and new functions in nursing that require new competencies beyond evidence-based practice (EBP). However, the success of teaching and implementing EBP rely on the competencies of nursing educators. This study aimed to determine the effectiveness of the Evidence-Based (EBP) Training Program in enhancing the EBP competencies of faculty members. An EBP Training Program was conducted among 13 nurse educators. The participants cognitive and psychomotor competencies were measured before and after the EBP Training Program using a self-made cognitive and psychomotor competency questionnaire. Pre-test and post-test scores were then analyzed using RM-MANOVA. Results revealed that the EBP Training Program caused a large improvement in the cognitive competency in EBP of nurse educators. However, the training program was not sufficient to cause a significant effect on the psychomotor competency of the nurse educators.
Innovative Teaching Pedagogy in Nursing Education
Authors: Beulah Jasmine Rao
Published: February 2024

There are a variety of teaching strategies that instructors can use to improve student learning. It is of great importance to select appropriate teaching strategies in nurse education to make the training more appealing and more effective. In this article, few teaching strategies will be introduced to help instructors learn how to involve the teaching strategy in the nurse education, Faculty and students work together to create environments that promote leadership, Interprofessional education, transformative research and cultural inclusiveness. Through innovative teaching and learning approaches that address a variety of learning styles, professors actively engage students. Whether it’s future researchers and nursing faculty looking to advance their careers or nurses, nurse practitioners and physician assistants seeking greater clinical knowledge, all students at the School of Nursing benefit from professors with diverse interests who create learning environments that empower them to be agents of health care change. Technology allows students to maximize learning time by completing coursework before coming to class. The elimination of lecture-style instruction engages students in a twoway flow of information. Faculty recognizes adults learn differently and instruction must accommodate multiple learning styles. New research validates that student-driven education promotes retention far better than lecturing. Ultimately, School of Nursing graduates effectively function to the highest standards of care
Cumhuriyet'in 100. Yılında 100 Türk Yazar
Authors: Tuğluk Abdulhakim , Kalsın Şirvan , Karaca Nesrin , Arıkan Seda , Özyön Arzu , Yılmaz Nusret , Doğan Nur , Taştan Zeki , Yavuz Mehmet Cihan , Özher Sema , Kılıçarslan Veli , Mengi Nesrin , Şahin Ahmet Metehan , Durukoğlu Salim , Aras Emel , Kut Belenli Pelin , Yetiş Kâzım , Doğan Abide , Özkaya Hilal , Belenli Ali , Çetin Nurullah , Aydoğan Bedri , Özen İbrahim , Mutlu Betül , Timur Kemal , Sayak Bülent , Aydemir Mustafa , Yanardağ Mehmet Fetih , Gültekin Mustafa , Acar Yunus , Yıldız Alper , Malak Merve , Öner Gündüz Başak , Sakın Hasan , Erdal Kelime , İlgen Ebru , Lidar Veysel , Türk Hatem , Türk Emine Bilgehan , Nerkiz Ummahan , Özdemirel Seyfettin , Serdar Ali , Uslu Üstten Aliye , Karaca Yalçın Hünkar , Aras İnci , Özcan Recai , Törenek Mehmet , Yılmaz Çebin Burcu , Aydoğan Bedri , Sarıkaya Makbule , Tiken Servet , Soydaş Hakan , Yetim Arzu , Kösteloğlu Zeynep , Sivri Medine , Aydın Yahya , Yavuz Suzan , Üstün Kaya Senem , Balcı Kurtar Beyza Nur , Bakır Sinan , Aksoy Serdaroğlu Özge , Energin Ayşe , Özgürel Emine Gözde , Güven Akın Gonca , Dinçer Fatih , Karahan Ali , Olpak Koç Canan , Geçer Genç Osman , Oruç Sema , Güneş Mehmet , Akgün Ünsal Ferhan , Ünsal Kubilay , Sürücü Özlem , Özdarıcı Öznur , Kacıroğlu Murat , Somuncu Selim , Özker Başak , Altun Ferhat , Tonga Necati , Gündoğan Hatice , Güven Kılıçarslan Zehra , Koçyiğit Fırat Ender , Canarslan Yıldız Demet , Kaleli Mehmet Emir , Koşar Emel , Doğan Mine Nihan , Ergün Atbaşı Nurtaç , Tutumlu Reyhan , Akça Hilal , Cömert Saliha , Türk Mehmet Taner , Üstün Koray , Cuşa Hasan , Yıldız Sevinç , Kurt Begüm , Sancar Ebru , Bulut Ayhan
Published: February 2024

-
Chiral phosphoric acid-catalyzed transfer hydrogenation of 3,3-difluoro-3H-indoles
Authors: Wang Yumei , Wang Guangzhu , Zhu Yanping , Dong Kaiwu
Published: February 2024

A convenient and efficient method for the synthesis of optically active difluoro-substituted indoline derivatives starting from the corresponding 3H-indoles by chiral phosphoric acid-catalyzed transfer hydrogenation was developed. Using Hantzsch ester as the hydrogen source under mild reaction conditions, the target products can be obtained with excellent yield and enantioselectivity.
Social Network Theory in Advertisers' Development to Increase Luxury Goods Purchases
Authors: Hamami Finka , Masnita Yolanda , Madliyas Madliyas
Published: February 2024

The influence of advertising attitude as a mediator in the relationship between advertisers and purchasing intention. This research also aims to see the influence of friends and peers and celebrities on purchasing intention. The sample in this study was 113 respondents with the criteria of having purchased luxury goods. To obtain a sample, this research uses a non-probability sampling technique. Using a structural equation model (PLS), this research shows that advertising attitude can mediate the positive influence of advertisers on purchasing intention. also shows that friends and peers and celebrities have a positive influence on purchasing intention. From the results of research that has been conducted, it shows that advertising attitude mediates the positive influence of advertisers on purchasing intention. The results of this research show that friends and peers have a positive influence on purchasing intention. The research results also show that celebrities have a positive effect on purchasing intention. In this research, social network theory provides an understanding that the development of social media which aims to become a link between individuals has an impact on purchasing behavior, especially online purchases. This research contributes to new literature in the field of marketing management related to advertisers, advertising attitudes, friends and peers, celebrities and purchasing intention. For further research, other variables can be used that might influence purchasing intention other than the variables used in this research.
The Role of Brand Trust, Brand Image, Brand Equity on Repurchase Intention
Authors: Sutanto Wullyatri Dewi Risma , Kussudyarsana Kussudyarsana
Published: February 2024

In the rapidly growing business world, companies are faced with intense competition due to the emergence of new companies. This research analyzes the role of brand trust, brand image and brand equity on repurchase intention of Wardah brand cosmetics. The aim of this research is to determine brand trust, brand image and brand equity on repurchase intentions. This research uses quantitative analysis with purposive sampling technique. The population of this study were FEB students at Muhammadiyah University, Surkarta who had purchased Wardah cosmetics with a sample of 192 respondents. The data collection technique uses a questionnaire with a standardized Likert scale using SPSS version 26. The analytical method used in this research is multiple linear regression analysis using several variables, namely brand trust, brand image, brand equity and repurchase intention. The results of this research show that brand trust has a significant effect on repurchase intentions, brand image has a positive and significant effect on repurchase intentions, brand equity has a significant effect on repurchase intentions. This is proven by F sig. 0.000 is smaller than 0.05. The R Square value of 0.982 indicates that the ability of the brand trust model (X1), brand image (X2), brand equity (X3) explains the variation in the repurchase intention variable (Y) by 98.2% and the remainder is influenced by other independent variables by 1.8 %.
Klippel-Trenaunay-Weber syndrome with intracranial dural arteriovenous fistula and spinal arteriovenous shunt
Authors: Su Xin , Ma Yongjie , Zhang Hongqi , Li Guilin , Li Jingwei
Published: February 2024

Our clinical image revealed a case of Klippel-Trenaunay-Weber syndrome (KTWS) accompanied by a spinal arteriovenous shunt and an intracranial dural arteriovenous fistula. There have been few reports of KTWS patients developing dural arteriovenous fistulas. This clinical image highlights the strong association between KTWS and CNS vascular malformations. It is important to note that KTWS patients are at risk of developing central nervous system vascular diseases. Therefore, early detection and screening are recommended.
Fabrication of Cellulose Powder Dielectric Composite Material using Pineapple Leaves Fiber
Authors: Rudraa Devi Giamasrow  , Nurhafizah Abu Talip Yusof  , Azahani Natasha Azman  , Norazwina Zainol  , Mohamad Shaiful Abdul Karim
Published: February 2024

Pineapple, known for its delicious taste and nutritional value, generates substantial waste in the form of cores, leaves, and skin, resulting in significant yearly accumulations. Efficient disposal of pineapple waste has become a critical challenge due to its increasing production and potential environmental pollution. The objective of this paper is to volarize natural fibre derived from pineapple waste by fabricating it into a new dielectric composite material. The fabrication process of dielectric composite material was achieved by using the optimization technique through Design Expert software, resulting in noteworthy findings. Then, the properties of the fabricated materials were analysed in terms of their permittivity value and elemental composition. The permittivity value of the newly fabricated dielectric materials was measured using the vector network analyser (VNA) method, while their elemental composition was characterized using energy-dispersive X-ray (EDX) spectroscopy. The correlation between elemental composition and the permittivity value of newly fabricated composite materials is analysed in this paper. As a result, the dielectric composite material attained its highest permittivity (4.08) when composed of 76.02% carbon and 22.61% oxygen. Conversely, the material exhibited a lower permittivity value (2.87) when its carbon content decreased to 69.32% and its oxygen content increased to 29.81%. This outcome highlights the crucial role of carbon in absorbing and storing electromagnetic signals, influencing the dielectric properties of the material. In conclusion, this paper unveils a ground-breaking use for waste pineapple leaves, showcasing how their carbon content significantly affects the resulting dielectric composite material's permittivity. This innovative eco-friendly material presents a sustainable alternative for non-recyclable dielectric materials in electronic devices such as PCBs, antennas, and sensors, for example.
The Evaluation of Augmented Reality Dictionary to Improve English Vocabulary
Authors: Norshahila Ibrahim  , Erni Marlina Saari  , Noor Hidayah Azmi  , Muhammad Azeem Abbas  , Khairunnisa Hasin  , Mimi Dalina Ibrahim
Published: February 2024

English is an important subject for scoring in primary and secondary school exams in Malaysia. However, students are exposed to countless grammatical errors and are affected by the dialect they use in daily communication, especially for students who live in Kelantan. They are used to the use of dialect words in daily conversation. Therefore, they faced difficulties in understanding and translating the words from Bahasa Melayu to English. Furthermore, there is a lack of mobile application dictionaries to help primary school students to translate Kelantan’s dialect into English. The objectives of this research are (i) to analyse the needs and requirements to develop an AR mobile application to translate Kelantan’s dialect into English, (ii) to develop an AR mobile application that can look up the meaning of Kelantan’s dialect in English accurately, (iii) to evaluate the usability of the mobile application in terms of compatibility, consistency, flexibility, and learnability, and (iv) to evaluate the effectiveness of the mobile application to improve the vocabulary of the users. ADDIE model has been chosen in this research which consists of five phases involved in completing this research which is: (i) analysis phase, (ii) design phase, (iii) development phase, (iv) implementation phase, and (v) evaluation phase. The main contribution of this research is an AR mobile application Kelantan Dictionary called MyBrainy Kelate for primary school to improve English vocabulary. MyBrainy Kelate will help primary school students who have difficulties translating Kelantan’s dialect words into English words. The usability testing proved that MyBrainy Kelate has met the requirements of usability elements. Meanwhile, the effectiveness testing proves that the application is an effective tool for the user to improve their knowledge of English vocabulary. For future works, the research can be improvised by taking into consideration the game-based learning in the mobile application. The playability test can be conducted to test the playability of the game.
Enhancing Maintenance Services Quality: A Study of Student Satisfaction and Maintenance Strategies in Student’s Residential College
Authors: Amirul Hafizi Mohd Midhal  , Mohd Syafiq Syazwan Mustafa  , Anies Faziehan Zakaria  , Fatimah Yusof  , Kamaruzaman Musa  , Ashraf Abdul Rahman  , Muhamad Faiz Abd Latif  , Maranatha Wijayaningtyas  , Ahmad Rusyaidi Jumat
Published: February 2024

Maintenance services play a pivotal role in maintaining existing facilities, structures, buildings, and real property, encompassing routine maintenance, repairs, and replacement. In the contemporary landscape, the quality of maintenance has emerged as a critical factor in ensuring the optimal function of buildings and their components. This research endeavors to ascertain the perceived levels of students’ satisfaction and expectation towards the quality of maintenance services at the residential college of Universiti Tun Hussein Onn Malaysia Pagoh Campus. This study also aimed to delineate maintenance strategies that leverage several technologies to enhance maintenance service quality. Through questionnaires, this study collected responses from a sample of participants and employed SERVQUAL approach, comprising five distinct elements, for analysis. Findings indicated that students' expectation and satisfaction levels, particularly in the realms of reliability, tangibles, and assurance, yielded high scores. However, responsiveness and empathy recorded comparatively lower scores. Additionally, the Importance Index (I) analysis measured the significance of maintenance strategies and revealed that all identified strategies were not only essential but also of paramount importance. The primary contribution of this study lies in the implementation of SERVQUAL model, which explained the relationship between maintenance service quality and various strategies employed. Recognizing the pivotal role of maintenance service quality in influencing student productivity, this study provides valuable insights for public institutions to enhance their maintenance services. The institutions can effectively elevate maintenance service quality towards advanced technology by emphasizing strategies that align with the five SERVQUAL elements.
Real-Time Pavement Crack Detection Based on Artificial Intelligence
Authors: Norsuzila Ya’acob  , Mohamad Danial Ikmal Zuraimi  , Amirul Asraf Abdul Rahman  , Azita Laily Yusof  , Darmawaty Mohd Ali
Published: February 2024

Pavement as a structural element is closely related to the road traffic system because it is essentially a support structure for the movement of vehicles. Modern technology has attained significant improvements in road durability, quality, and safety through the use of new materials and construction technology. All civil engineering infrastructures have a specific lifespan. The road surface can be the worst, and repair is more costly if the pavement is not maintained. The objective of this research is to spot the damages over the inspected road and detect cracks in a short time, useful to achieve more comprehensive monitoring and assessment of the condition of road pavement using a smartphone equipped with You Only Look Once (YOLO) to reduce maintenance costs. The method uses advanced image processing techniques and uses YOLO to detect cracked pavement in a short time. More specifically, it is based on the latest generation of Deep Neural Network (DNN) algorithms, such as YOLO V5. YOLO V5 is used as a detector for cracked pavement and image processing as an automated pavement distress detector. The obtained result for longitudinal cracks shows that the area of cracks is 1.1682 m2, with a threshold value of 0.91, while the result for transversal cracks shows the area of cracks of 1.9627 m2, with a threshold value of 0.85. Otsu’s method works best under conditions such as low noise level, homogeneous lighting, and higher intra-class variance than an inter-class variance. The outcome of this project is improved recognition accuracy compared to the manual recognition currently used.
Visualising Current Research Trends in Class Imbalance using Clustering Approach: A Bibliometrics Analysis
Authors: Nurul Syahida Abu Bakar  , Wan Fairos Wan Yaacob  , Yap Bee Wah  , Wan Marhaini Wan Omar  , Utriweni Mukhaiyar
Published: February 2024

In recent years, extensive research has been carried out on big data class imbalance problems using the clustering approach. The bibliometric analysis employs statistical techniques to map and assess trends in a specific research domain based on keywords, author affiliations, and citations. Bibliographic analysis assists us in comprehending unstructured big data. This study aims to present a comprehensive literature review on class imbalance problems using the clustering approach and identify gaps in the research domain using bibliometric analytical techniques. The Scopus and Web of Science databases were used to extract 663 articles on class imbalance data using a clustering approach published between 2010 and 2021. We used the VOS (Visualisation of Similarities) viewer to visualise the bibliometric analytical outcomes. Co-citation and co-word analysis were used to visualise the publication trend and identify areas of current research interest. The study's key findings evidenced a growing interest in the research domain. Herrera, f., and Chawla N. V. are dominant authors in this field, and China is leading the publication in the clustering approach for the big data imbalance problem. The top three affiliations are from China: Tsinghua University, the Chinese Academy of Sciences, and Beihang University. Conducting an in-depth bibliometric analysis using other databases such as Science Direct, IEEE, and Emerald is recommended. This study may assist researchers in understanding the nature of the big data imbalance problem using a clustering approach and providing insights for future research derived from these worldwide databases.
Guided bone regeneration the alveolar part of low jaw with skeletal titanium membrane: clinical case
Authors: Налчаджян А.М. , Мураев А.А. , Бопхоев С.В. , Казарян Г.Г. , Тунян Г.Д. , Мартиросян М.П.
Published: February 2024

При проведении направленной костной регенерации в области альвеолярного гребня успешно применяются каркасные титановые мембраны. Интраоперационное использование стандартных каркасных мембран трудоемко, так как необходимо вручную моделировать их форму, что значительно увеличивает время операции. Кроме этого, титановые сетки часто прорезаются через слизистую оболочку раньше времени, необходимого для созревания костного регенерата. С помощью аддитивных технологий, в частности лазерной 3D-печати титаном, появилась возможность изготавливать индивидуализированные титановые каркасные мембраны, которые точно повторяют границы области реконструкции, не имеют острых краев и не деформируются. Применение таких мембран позволяет точно переносить виртуальный план лечения на операционное поле, сокращает время операции, снижает риск преждевременной экспозиции и тем самым повышает успех реконструкции. Цель исследования — продемонстрировать новый протокол направленной костной регенерации (НКР) альвеолярной кости с использованием индивидуализированной титановой каркасной мембраны. После операции высота альвеолярного гребня была увеличена на 6,44 мм относительно исходного значения, ширина альвеолярного гребня в области вершины составила 9,64 мм. Поэтапная реконструкция альвеолярной части нижней челюсти, включающая первичную пластику мягких тканей с формированием кератинизированной десны и последующую НКР с использованием индивидуализированной каркасной титановой мембраны, продемонстрировала высокую эффективность, выражающуюся в формировании достаточного размера костного регенерата для установки дентальных имплантатов, а также в успешной и стабильной во времени остеоинтеграции установленных имплантатов.

When conducting guided bone regeneration in the area of the alveolar ridge, skeletal titanium membranes are successfully used. Intraoperative use of standard scaffold membranes is laborious, since it is necessary to manually model its shape, which significantly increases the operation time. With the help of additive technologies, in particular, titanium laser 3D printing, it became possible to manufacture individualized titanium frame membranes that do not deform and exactly repeat the boundaries of the reconstruction area. The use of such membranes reduces the operation time and increases the success of the surgery. The aim of the study — to demonstrate a new protocol for guided bone regeneration (GBR) of alveolar bone using a customized titanium frame membrane. . After the surgery, the height of the alveolar ridge was increased by 6.44 mm relative to the initial value, the width of the alveolar ridge in the region of the apex was 9.64 mm. . The individualized skeletal titanium membrane was used to demonstrate its effectiveness in eliminating the defect of the alveolar bone, which indicates the success of this technique.
Chronic pain management using combination of non-pharmacological therapy on elderly with arthritis rheumatoid: Case study
Authors: Devi Hilda Mazarina , Setyowati Lilis
Published: February 2024

Arthritis rheumatoid are among the chronic conditions causing motor system decline in the elderly. The limited implementation of a non-pharmacological therapy combination involving warm compresses with deep breathing relaxation serves as the basis for this study. The aim of this scientific work is to conduct an analysis of pain management in elderly individuals with Arthritis rheumatoid.Method: A case study design was employed involving three clients, elderly individuals suffering from Arthritis rheumatoid. The nursing problem addressed was chronic pain (D.0078). The intervention applied to address chronic pain in these elderly individuals with an autoimmune condition involved a combination of warm compresses and deep breathing relaxation given three times over three consecutive days. The analysis was performed using the SMART (specific, measurable, achievable, relevant, and time-bound goals) method. The UNITRI FIKes gerontic nursing care format was used from data collection through action evaluation.Results: The case study revealed that on the initial assessment, all three elderly individuals experienced chronic pain at a moderate level. The planned nursing intervention was pain management, with pain level as the outcome criterion. After a three-day implementation, the issue of chronic pain was resolved in these elderly individuals, showing an increased ability to complete activities, reduced pain and grimacing, less protective attitude, and decreased sleep complaints.Conclusion: The combination therapy effectively reduced pain levels. This research serves as an addition to information and a resource for further studies concerning chronic pain management in elderly individuals with Arthritis rheumatoidKeywords: Arthritis, Breathing Exercises, Chronic pain, Hot Temperature, Rheumatoid
Revealing the Accountability of Tadulako University as a Step to Realizing Sustainable Development Goals
Authors: JURANA Jurana , BAKRY Mohammad Iqbal , INDRIASAR Rahayu , PARWATI Ni Made Suwitri , MAPPARESSA Nurlela , RIDWAN Muhammad
Published: February 2024

This research aims to reveal the accountability of Tadulako University's 'tadulako-ness'. This research was conducted to reveal the accountability of the Tadulako University higher education institution for its various Tadulako activities in various fields related to achieving the goals and targets of the Sustainable Development Goals (SDGs). This is important to reveal the accountability of Tadulako University as the highest and largest educational institution in Central Sulawesi. Tadulako University's involvement during this pandemic is important to know considering that the philosophy of the name 'tadulako' used contains an important and deep meaning, namely the foundation of origin or leadership so that Tadulako University's involvement in carrying out its functions and activities is certainly very necessary. This research supports and is in line with the 17 Goals and 169 targets of the Sustainable Development Goals (SDGs). This is because the initial findings of this research are in the form of Tadulako University's concept of 'keadulakoan' accountability which is the basis and value as a reference for carrying out its accountability and aligning it with the vision and mission of Tadulako University as a form of implementing sustainable development goals. This research uses a descriptive approach. Data collection is carried out by collecting various data available in various existing reporting forms. The data was then analyzed in the context of the ketadulakoan philosophy. The results of the research show that disclosures regarding the character of ketadulakaon have not been fully revealed.
Flight of the Bumblebee: the Early Excess Flux of Type Ia Supernova 2023bee Revealed by TESS, Swift, and Young Supernova Experiment Observations
Authors: Wang Qinan , Rest Armin , Dimitriadis Georgios , Ridden-Harper Ryan , Siebert Matthew R. , Magee Mark , Angus Charlotte R. , Auchettl Katie , Davis Kyle W. , Foley Ryan J. , Fox Ori D. , Gomez Sebastian , Jencson Jacob E. , Jones David O. , Kilpatrick Charles D. , Pierel Justin D. R. , Piro Anthony L. , Polin Abigail , Politsch Collin A. , Rojas-Bravo César , Shahbandeh Melissa , Villar V. Ashley , Zenati Yossef , Ashall C. , Chambers Kenneth C. , Coulter David A. , de Boer Thomas , DiLullo Nico , Gall Christa , Gao Hua , Hsiao Eric Y. , Huber Mark E. , Izzo Luca , Khetan Nandita , LeBaron Natalie , Magnier Eugene A. , Mandel Kaisey S. , McGill Peter , Miao Hao-Yu , Pan Yen-Chen , Stevens Catherine P. , Swift Jonathan J. , Taggart Kirsty , Yang Grace
Published: February 2024

We present high-cadence ultraviolet through near-infrared observations of the Type Ia supernova (SN Ia) 2023bee at D = 32 ± 3 Mpc, finding excess flux in the first days after explosion, particularly in our 10 minutes cadence TESS light curve and Swift UV data. Compared to a few other normal SNe Ia with early excess flux, the excess flux in SN 2023bee is redder in the UV and less luminous. We present optical spectra of SN 2023bee, including two spectra during the period where the flux excess is dominant. At this time, the spectra are similar to those of other SNe Ia but with weaker Si ii, C ii, and Ca ii absorption lines, perhaps because the excess flux creates a stronger continuum. We compare the data to several theoretical models on the origin of early excess flux in SNe Ia. Interaction with either the companion star or close-in circumstellar material is expected to produce a faster evolution than observed. Radioactive material in the outer layers of the ejecta, either from double detonation explosion or from a 56Ni clump near the surface, cannot fully reproduce the evolution either, likely due to the sensitivity of early UV observable to the treatment of the outer part of ejecta in simulation. We conclude that no current model can adequately explain the full set of observations. We find that a relatively large fraction of nearby, bright SNe Ia with high-cadence observations have some amount of excess flux within a few days of explosion. Considering potential asymmetric emission, the physical cause of this excess flux may be ubiquitous in normal SNe Ia.
Constraining Stellar Rotation at the Zero-age Main Sequence with TESS
Authors: Douglas S. T. , Cargile P. A. , Matt S. P. , Breimann A. A. , Pérez Chávez J. A. , Huang C. X. , Wright N. J. , Zhou G.
Published: February 2024

The zero-age main sequence (ZAMS) is a critical phase for stellar angular momentum evolution, as stars transition from contraction-dominated spin-up to magnetic wind-dominated spin-down. We present the first robust observational constraints on rotation for FGK stars at ≈40 Myr. We have analyzed TESS light curves for 1410 members of five young open clusters with ages between 25 and 55 Myr: IC 2391, IC 2602, NGC 2451A, NGC 2547, and Collinder 135. In total, we measure 868 rotation periods, including 96 new, high-quality periods for stars around 1 M
⊙. This is an increase of ten times the existing literature sample at the ZAMS. We then use the τ
2 method to compare our data to models for stellar angular momentum evolution. Although the ages derived from these rotation models do not match isochronal ages, we show that these observations can clearly discriminate between different models for stellar wind torques. Finally, τ
2 fits indicate that magnetic braking and/or internal angular momentum transport significantly impact rotational evolution even on the pre-main sequence.
CMZoom. IV. Incipient High-mass Star Formation throughout the Central Molecular Zone
Authors: Hatchfield H Perry , Battersby Cara , Barnes Ashley T. , Butterfield Natalie , Ginsburg Adam , Henshaw Jonathan D. , Longmore Steven N. , Lu Xing , Svoboda Brian , Walker Daniel , Callanan Daniel , Mills Elisabeth A. C. , Ho Luis C. , Kauffmann Jens , Kruijssen J. M. Diederik , Ott Jürgen , Pillai Thushara , Zhang Qizhou
Published: February 2024

In this work, we constrain the star-forming properties of all possible sites of incipient high-mass star formation in the Milky Way’s Galactic Center. We identify dense structures using the CMZoom 1.3 mm dust continuum catalog of objects with typical radii of ∼0.1 pc, and measure their association with tracers of high-mass star formation. We incorporate compact emission at 8, 21, 24, 25, and 70 μm from the Midcourse Space Experiment, Spitzer, Herschel, and SOFIA, cataloged young stellar objects, and water and methanol masers to characterize each source. We find an incipient star formation rate (SFR) for the Central Molecular Zone (CMZ) of ∼0.08 M
⊙ yr−1 over the next few 105 yr. We calculate upper and lower limits on the CMZ’s incipient SFR of ∼0.45 and ∼0.05 M
⊙ yr−1,respectively, spanning roughly equal to and several times greater than other estimates of CMZ’s recent SFR. Despite substantial uncertainties, our results suggest the incipient SFR in the CMZ may be higher than previously estimated. We find that the prevalence of star formation tracers does not correlate with source volume density, but instead ≳75% of high-mass star formation is found in regions above a column density ratio (N
SMA/N
Herschel) of ∼1.5. Finally, we highlight the detection of atoll sources, a reoccurring morphology of cold dust encircling evolved infrared sources, possibly representing H ii regions in the process of destroying their envelopes.
The Factory and the Beehive. V. Chromospheric and Coronal Activity and Its Dependence on Rotation in Praesepe and the Hyades
Authors: Núñez Alejandro , Agüeros Marcel A. , Curtis Jason L. , Covey Kevin R. , Douglas Stephanie T. , Chu Sabine R. , DeLaurentiis Stanislav , Wang Minzhi (Luna) , Drake Jeremy J.
Published: February 2024

Low-mass (≲1.2 M
⊙) main-sequence stars lose angular momentum over time, leading to a decrease in their magnetic activity. The details of this rotation–activity relation remain poorly understood, however. Using observations of members of the ≈700 Myr old Praesepe and Hyades open clusters, we aim to characterize the rotation–activity relation for different tracers of activity at this age. To complement published data, we obtained new optical spectra for 250 Praesepe stars, new X-ray detections for 10, and new rotation periods for 28. These numbers for Hyads are 131, 23, and 137, respectively. The latter increases the number of Hyads with periods by 50%. We used these data to measure the fractional Hα and X-ray luminosities, L
Hα
/L
bol and L
X/L
bol, and to calculate Rossby numbers R
o. We found that at ≈700 Myr almost all M dwarfs exhibit Hα emission, with binaries having the same overall color–Hα equivalent width distribution as single stars. In the R
o–L
Hα
/L
bol plane, unsaturated single stars follow a power law with index β = −5.9 ± 0.8 for R
o > 0.3. In the R
o–L
X/L
bol plane, we see evidence for supersaturation for single stars with R
o ≲ 0.01, following a power law with index

β

sup

=

0.5

−
0.1

+
0.2

, supporting the hypothesis that the coronae of these stars are being centrifugally stripped. We found that the critical R
o value at which activity saturates is smaller for L
X/L
bol than for L
Hα
/L
bol. Finally, we observed an almost 1:1 relation between L
Hα
/L
bol and L
X/L
bol, suggesting that both the corona and the chromosphere experience similar magnetic heating.
Validation of Elemental and Isotopic Abundances in Late-M Spectral Types with the Benchmark HIP 55507 AB System
Authors: Xuan Jerry W. , Wang Jason , Finnerty Luke , Horstman Katelyn , Grimm Simon , Peck Anne E. , Nielsen Eric , Knutson Heather A. , Mawet Dimitri , Isaacson Howard , Howard Andrew W. , Liu Michael C. , Walker Sam , Phillips Mark W. , Blake Geoffrey A. , Ruffio Jean-Baptiste , Zhang Yapeng , Inglis Julie , Wallack Nicole L. , Sanghi Aniket , Gonzales Erica J. , Dai Fei , Baker Ashley , Bartos Randall , Bond Charlotte Z. , Bryan Marta L. , Calvin Benjamin , Cetre Sylvain , Delorme Jacques-Robert , Doppmann Greg , Echeverri Daniel , Fitzgerald Michael P. , Jovanovic Nemanja , Liberman Joshua , López Ronald A. , Martin Emily C. , Morris Evan , Pezzato Jacklyn , Ruane Garreth , Sappey Ben , Schofield Tobias , Skemer Andrew , Venenciano Taylor , Wallace J. Kent , Wang Ji , Wizinowich Peter , Xin Yinzi , Agrawal Shubh , Do Ó Clarissa R. , Hsu Chih-Chun , Phillips Caprice L.
Published: February 2024

M dwarfs are common host stars to exoplanets but often lack atmospheric abundance measurements. Late-M dwarfs are also good analogs to the youngest substellar companions, which share similar T
eff ∼ 2300–2800 K. We present atmospheric analyses for the M7.5 companion HIP 55507 B and its K6V primary star with Keck/KPIC high-resolution (R ∼ 35,000) K-band spectroscopy. First, by including KPIC relative radial velocities between the primary and secondary in the orbit fit, we improve the dynamical mass precision by 60% and find

M

B

=

88.0

−
3.2

+
3.4

M

Jup

, putting HIP 55507 B above the stellar–substellar boundary. We also find that HIP 55507 B orbits its K6V primary star with

a
=

38

−
3

+
4

au and e = 0.40 ± 0.04. From atmospheric retrievals of HIP 55507 B, we measure [C/H] = 0.24 ± 0.13, [O/H] = 0.15 ± 0.13, and C/O = 0.67 ± 0.04. Moreover, we strongly detect 13CO (7.8σ significance) and tentatively detect

H

2

18

O

(3.7σ significance) in the companion’s atmosphere and measure

12

CO

/

13

CO
=

98

−
22

+
28

and

H

2

16

O

/

H

2

18

O
=

240

−
80

+
145

after accounting for systematic errors. From a simplified retrieval analysis of HIP 55507 A, we measure

12

CO

/

13

CO
=

79

−
16

+
21

and

C

16

O

/

C

18

O
=

288

−
70

+
125

for the primary star. These results demonstrate that HIP 55507 A and B have consistent 12C/13C and 16O/18O to the <1σ level, as expected for a chemically homogeneous binary system. Given the similar flux ratios and separations between HIP 55507 AB and systems with young substellar companions, our results open the door to systematically measuring 13CO and

H

2

18

O

abundances in the atmospheres of substellar or even planetary-mass companions with similar spectral types.
Disruption of Dark Matter Minihalos in the Milky Way Environment: Implications for Axion Miniclusters and Early Matter Domination
Authors: Shen Xuejian , Xiao Huangyu , Hopkins Philip F. , Zurek Kathryn M.
Published: February 2024

Many theories of dark matter beyond the weakly interacting massive particles paradigm feature an enhanced matter power spectrum on subparsec scales, leading to the formation of dense dark matter minihalos. Future local observations are promising to search for and constrain such substructures. The survival probability of these dense minihalos in the Milky Way environment is crucial for interpreting local observations. In this work, we investigate two environmental effects: stellar disruption and (smooth) tidal disruption. These two mechanisms are studied using semianalytic models and idealized N-body simulations. For stellar disruption, we perform a series of N-body simulations of isolated minihalo–star encounters to test and calibrate analytic models of stellar encounters before applying the model to the realistic Milky Way disk environment. For tidal disruption, we perform N-body simulations to confirm the effectiveness of the analytic treatment. Finally, we propose a framework to combine the hierarchical assembly and infall of minihalos to the Milky Way with the late-time disruption mechanisms. We make predictions for the mass functions of minihalos in the Milky Way. The mass survival fraction (at M
mh ≥ 10−12
M
⊙) of dense dark matter minihalos, e.g., for axion miniclusters and minihalos from early matter domination, is ∼60% with the relatively low-mass, compact population surviving. The survival fraction is insensitive to the detailed model parameters. We discuss various implications of the framework and future direct detection prospects.
MINDS. JWST/MIRI Reveals a Dynamic Gas-rich Inner Disk inside the Cavity of SY Cha
Authors: Schwarz Kamber R. , Henning Thomas , Christiaens Valentin , Gasman Danny , Samland Matthias , Perotti Giulia , Jang Hyerin , Grant Sierra L. , Tabone Benoît , Morales-Calderón Maria , Kamp Inga , van Dishoeck Ewine F. , Güdel Manuel , Lagage Pierre-Olivier , Barrado David , Caratti o Garatti Alessio , Glauser Adrian M. , Ray Tom P. , Vandenbussche Bart , Waters L. B. F. M. , Arabhavi Aditya M. , Kanwar Jayatee , Olofsson Göran , Rodgers-Lee Donna , Schreiber Jürgen , Temmink Milou
Published: February 2024

SY Cha is a T Tauri star surrounded by a protoplanetary disk with a large cavity seen in the millimeter continuum but has the spectral energy distribution of a full disk. Here we report the first results from JWST/Mid-InfraRed Instrument (MIRI) Medium Resolution Spectrometer (MRS) observations taken as part of the MIRI mid-INfrared Disk Survey (MINDS) GTO Program. The much improved resolution and sensitivity of MIRI-MRS compared to Spitzer enables a robust analysis of the previously detected H2O, CO, HCN, and CO2 emission as well as a marginal detection of C2H2. We also report the first robust detection of mid-infrared OH and rovibrational CO emission in this source. The derived molecular column densities reveal the inner disk of SY Cha to be rich in both oxygen- and carbon-bearing molecules. This is in contrast to PDS 70, another protoplanetary disk with a large cavity observed with JWST, which displays much weaker line emission. In the SY Cha disk, the continuum, and potentially the line, flux varies substantially between the new JWST observations and archival Spitzer observations, indicative of a highly dynamic inner disk.