bluuebunny/crossref_metadata_2025_split huggingface dataset:
Creep Behavior of Commercially Pure Titanium at Low and Intermediate Temperatures
Authors: Matsunaga T. , Hongo H. , Tabuchi M. , Yamabe-Mitarai Y. , Ito T. 
Published: March 2024

Abstract
Titanium is extensively utilized in the aerospace industry due to its low density and excellent mechanical and chemical properties. Given that components in this sector are exposed to temperatures up to 873 K, representing 45% of the metal's melting point, understanding the mechanical properties in this temperature range is crucial for ensuring flight safety. This study focuses on examining the creep behavior of pure titanium to gain insights into its fundamental mechanical response. Creep was observed to occur at stresses exceeding micro-yielding levels around 297 K, primarily attributed to overcoming the pinning effect caused by interstitial atoms. Interestingly, at intermediate temperatures, an inverted primary creep phenomenon was noted, with an activation energy of approximately 240 kJ/mol within this range. This value, significantly larger than those associated with lattice or dislocation-core diffusions, suggests the potential movement of dislocations with interstitial atoms, similar to the diffusion of oxygen or nitrogen within titanium. Moreover, fracture strain exceeded 80% at temperatures surpassing 673 K, possibly resulting from grain boundary diffusion mechanisms akin to superplasticity. The activation energy for this mechanism, at 97 kJ/mol, is adequate for activating grain boundary deformation at intermediate temperatures.
Update on United States Advanced Ultra-Supercritical Component Test Project for 760 °C Steam Conditions
Authors: Hack Horst , Purgert Robert , Schrecengost Robert 
Published: March 2024

Abstract
Following the successful completion of a 15-year effort to develop and test materials that would allow advanced ultra-supercritical (A-USC) coal-fired power plants to be operated at steam temperatures up to 760°C, a United States-based consortium has been working on a project (AUSC ComTest) to help achieve technical readiness to allow the construction of a commercial scale A-USC demonstration power plant. Among the goals of the ComTest project are to validate that components made from the advanced alloys can be designed and fabricated to perform under A-USC conditions, to accelerate the development of a U.S.-based supply chain for key A-USC components, and to decrease the uncertainty for cost estimates of future commercial-scale A-USC power plants. This project is intended to bring A-USC technology to the commercial scale demonstration level of readiness by completing the manufacturing R&D of A-USC components by fabricating commercial scale nickel-based alloy components and sub-assemblies that would be needed in a coal fired power plant of approximately 800 megawatts (MWe) generation capacity operating at a steam temperature of 760°C (1400°F) and steam pressure of at least 238 bar (3500 psia).The A-USC ComTest project scope includes fabrication of full scale superheater / reheater components and subassemblies (including tubes and headers), furnace membrane walls, steam turbine forged rotor, steam turbine nozzle carrier casting, and high temperature steam transfer piping. Materials of construction include Inconel 740H and Haynes 282 alloys for the high temperature sections. The project team will also conduct testing and seek to obtain ASME Code Stamp approval for nickel-based alloy pressure relief valve designs that would be used in A-USC power plants up to approximately 800 MWe size. The U.S. consortium, principally funded by the U.S. Department of Energy and the Ohio Coal Development Office under a prime contract with the Energy Industries of Ohio, with co-funding from the power industry participants, General Electric, and the Electric Power Research Institute, has completed the detailed engineering phase of the A-USC ComTest project, and is currently engaged in the procurement and fabrication phase of the work. This paper will outline the motivation for the effort, summarize work completed to date, and detail future plans for the remainder of the A-USC ComTest project.
Dampak Penyederhanaan Perizinan Lingkungan yang diatur oleh Undang-Undang No 11 Tahun 2020 Tentang Cipta Kerja Terhadap Lingkungan Hidup Masyarakat Serta Pelaku Usaha
Authors: Yuniardi Ricky , Suharyanto Yoyok , Satory Agus 
Published: March 2024

Sebagai hukum administrasi dengan sifatnya yang instrumental, maka fungsi yang menonjol dalam hukum lingkungan administratif adalah bersifat preventif berupa pencegahan terhadap pencemaran dan/atau kerusakan lingkungan. Dalam Pasal 13 ayat (1) Undang-Undang Nomor 32 Tahun 2009 tentang Perlindungan dan Pengelolaan Lingkungan Hidup (UU PPLH) disebutkan bahwa Pasal 13 ayat 1 Pengendalian pencemaran dan/atau kerusakan lingkungan hidup dilaksanakan dalam rangka pelestarian fungsi lingkungan hidup. Sejak diterbitkannya Undang-undang Nomor 11 Tahun 2020, ruang lingkup dalam perizinan lingkungan sangatlah berbeda misalnya saja berdasarkan ketentuan lama, izin lingkungan terpisah dari Perizinan Berusaha, maka apabila ada pelanggaran dan dikenakan sanksi pencabutan izin, yang dicabut hanya izin lingkungan, izin usah tetap jalan. Namun, di UU Cipta Kerja, izin lingkungan terintegrasi dengan perizinan berusaha, apabila ada pelanggaran dan dikenakan sanksi pencabutan izin, yang dicabut sekaligus Perizinan Berusaha. Hal ini sangatlah berdampak bagi masyarakat juga para pelaku usaha dibidang yang keterkaitan dengan perizinan lingkungan.
EFFECT OF USING A RELAXATION SPLINT ON REDUCING CHRONIC NECK PAIN
Authors: Tereshchuk O.H. 
Published: March 2024

Background: Approximately 80% of patients seeking dental care exhibit parafunctional manifestations of the temporomandibular joint (TMJ), while approximately 70% of patients with TMJ dysfunction experience pain in the cervical spine. It is noteworthy that neck pain is a socially significant phenomenon, as this condition can lead to a substantial decline in the patient's quality of life and disability.
Aim: To determine the effect of using a relaxation mouthguard in patients with TMJ dysfunction on reducing chronic neck pain.
Materials and methods: The study involved 16 individuals with manifestations of TMJ dysfunction, who were divided into 2 groups. The diagnosis was based on a questionnaire following the research diagnostic criteria for TMD, VAS, and the Oswestry cervical scale. Questionnaires and other examinations were conducted on all patients four times (before treatment, on days 8, 15, and 23 after treatment). Cervical spine mobility was assessed in all patients, and mandibular axiography was performed. Patients in the experimental group, comprising 8 individuals, were fitted with individual relaxation splints and prescribed manual massage of the masticatory and cervical muscles. Patients in the control group, also consisting of 8 patients, were instructed to perform manual massage of the masticatory and cervical muscles.
Results: Patients in both study groups demonstrated a reduction in clinical symptoms. According to the study data, the reduction of pain in the experimental group from the beginning to the end of treatment was 62.86% (p < 0.001) of the initial value, whereas in the control group, it was 13.75% (p < 0.001). There was an increase in mobility of the cervical spine in both study groups (p < 0.001). The index of cervical spine disability in the experimental group improved by 225% compared to the control group.
Conclusions: The use of a relaxation mouthguard in patients with TMJ dysfunction and existing neck pain symptoms can alleviate chronic pain manifestations in the cervical spine.
CLINICAL STATE OF DIRECT RESTORATION OF SIDE TEETH IN ORTHODONTIC PATIENTS
Authors: Udod O.A. , Dramaretska S.I. 
Published: March 2024

Relevance. During long-term orthodontic treatment, there are favorable conditions for the development of dental caries and periodontal diseases.
Aim of the study. Retrospective clinical evaluation of direct restorations of teeth in patients during treatment of orthodontic pathology with fixed appliances.
Materials and methods. The condition of 227 direct photocomposite restorations of lateral teeth with localization on the occlusal and one of the contact surfaces and duration of functioning from 1 to 5 years was studied in 57 people who were treated with the use of fixed orthodontic equipment. Marginal fit, secondary caries and contact points were evaluated.
Research results. In restorations with terms of 1-2 years, a violation of the marginal fit on the occlusal surface was found in 5 restorations (6.4% of their number with the given terms), on the vestibular and oral surfaces – in 7 (9%), in the area near the gums – in 10 restorations (12.8%). Secondary caries was detected on the vestibular surface in 2 restored teeth (2.6%), in the area near the gums – in 8 teeth (10.3%). There were violations of the contact point in 4 cases (5.1%). With terms of 4-5 years, in 3 restorations (10.3% of the number with these terms), violations of marginal fit were established on the occlusal surface, in 9 (31%) on the vestibular and oral surfaces, in 17 restorations (58.6%) – in the area near the gums. Secondary caries on the occlusal surface was found in 2 teeth (6.9%), on the vestibular and oral surfaces in 4 (13.8%), in the area near the gums – in 16 teeth (55.2%). Defects of the contact point were established in 19 cases (65.5%). Conclusions. In the conditions of orthodontic treatment with fixed equipment, the risk of developing disorders in photocomposite restorations in the area near the gums of the contact surfaces of the lateral teeth increases significantly.
Investigating the Dark Side of Social Media Marketing: Case of Cyberbullying on Micro Celebrities
Authors: Lefi Leila , Sghaier Sarra 
Published: March 2024

A substantial growth of using social media is the new marketing trend in last few years. Influencers are now recognized as new micro-celebrities. So that, marketing professionals are increasingly using them for a better placement of their products. This new trend is considered as the bright side of social media. But, little is known about the dark side. This research investigates the dark side of social media in the particular case of Instagram platform. We focused on cyberbullying as an abusive way usually used by followers in order to highlight the real effects on micro-celebrities. This research innovatively used netnography method to extract and analyse Instagram posts on the official account of one well-known Tunisian micro-celebrity. All contents shared during 3 months by individuals involved in this research were recorded using Nvivo 11.0 for thematic analysis and coding. Results shown that strangely, cyberbullying in Tunisian context doesn’t cause psychological disorder but made the victim viral and famous. It seems that masquerading was provoked by the micro-celebrity to get more followers, more endorsement and more profit. Limitations and future research directions were stipulated.
Soil Characteristics of Settlements in Sukadono Hamlet, Helvetia District, Deli Serdang Regency
Authors: Bin Azmi Muhammad Azran , Carolina Panggabean Yoan , Andriyani Yunilda , Prayugo Bambang 
Published: March 2024

Abstract. Introduction: Soil is where humans can do an abundance of activities. Soil can be contaminated by various factors. Soil is also a medium of development, storage and transmission of several types of worms, commonly referred to as Soil-Transmitted Helminths (STH). Soil Transmitted Helminths are usually found in individuals with poor individual hygiene, low socioeconomics and at risk of infection. Sukadono Hamlet villagers mostly work as pig and chicken breeders. Objective: The purpose of this study was to find out the characteristics of residential land in the Sukadono Hamlet Helvetia District Deli Serdang. Methods: The sample in this study was 72 soils taken from the front, back left or right of the house. The soil is measured in temperature, humidity, pH value and is checked using a Digital Soil Analyzer. Then for the STH examination conducted at the Parasitology Laboratory of the Faculty of Medicine, Universitas Sumatera Utara. This research uses research method descriptive - observaional with across sectional approach. Sample was chosen using the technique probability sampling with simple random sampling. Results: The results showed that most of the soil characteristics in Sukadono Hamlet Helvetia District Deli Serdang were abnormal. The STH examination results also showed that (45.8%) of the 72 soil samples examined positively contained STH. Hookworms were found in (32.9%) soil samples, Ascaris lumbricoides species in (5.3%) soil samples, Strongyloides stercoralis species were found positive in (7.9%) soil samples and a mixture of STH is present in 2 (3.9%) soil samples. Conclusion: The resident soil in Sukadono Hamlet, Helvetia Ward, Deli Serdang District has been contaminated by Soil Transmitted Helminths.
Keywords: Contamination. Soil Characteristics, Soil Transmitted Helminth
Production and Quality Evaluation of Herbal Tea Mixtures from Phyllanthus Debilis, Osbeckia octandra, and Artrocarpus heterophyllus Leaves
Authors: I. Dias P. Gayani , J. Marapana R.A. Upul , S.K. Rathnayaka R.M. Udaya 
Published: March 2024

Abstract. Introduction: This study investigated the acceptability and quality of herbal tea mixtures prepared using Phyllanthus debilis, Osbeckia octandra, and Artrocarpus heterophyllus leaves powders in different proportions. Preference for different sensory attributes of tea samples was evaluated using thirty untrained panelists. Proximate composition, tea quality parameters, and microbial counts of tea samples were evaluated as per AOAC and ISO standard methods. The amount of major and trace minerals was evaluated using atomic absorption spectrophotometer. Results revealed that dark-colored samples were much preferred by the consumers. A significant positive correlation (r=0.920) showed among redness (a*) of teas and color preference. Yet, the overall preference was reduced in more bitter and astringent samples. Overall acceptability scores highest for A. heterophyllus tea (M9), yet the color preference was highest in P. debilis tea (M8) and mix of P. debilis and O. octandra (M4). The tea samples were rich in nutrients, yet crude fiber and moisture contents exceed the required maximum limits. Heavy metal concentrations and microbial counts lay within the standard limits. This study showed mixing herbs can enhance the acceptability and quality of herbal infusions. With such optimizations, these novel tea mixtures can thrive commercially in the tea market.
Keywords: Herbal tea, Quality parameters, Sensory attributes
Revolutionizing Herbal Medicine: Exploring Nano Drug Delivery Systems
Authors: Prabhakar Pranav Kumar , Anand Keshav , Bala Indu , Shakya Rupendra , Massaon Harpreet Kaur , Suwalka Abhilasha , CP Bineesh , N Anush 
Published: March 2024

Abstract. Introduction: Traditional herbal medicine has been practiced for centuries and continues to play a significant role in healthcare systems worldwide. However, the efficacy and therapeutic potential of herbal remedies can be limited due to various factors such as poor bioavailability, instability, and non-specific targeting. In recent years, nanotechnology has emerged as a promising approach to overcome these limitations and revolutionize the field of herbal medicine. This review explores the application of nano drug delivery systems in enhancing the effectiveness of herbal therapeutics. The utilization of nanotechnology in the context of herbal medicine involves the design and development of nano-sized carriers that can encapsulate and deliver herbal bioactive compounds to the target sites in a controlled and targeted manner. Various types of nanocarriers, such as liposomes, polymeric nanoparticles, solid lipid nanoparticles, and nanoemulsions, have been extensively investigated for their potential in improving the bioavailability, stability, and controlled release of herbal compounds. The integration of nanotechnology with herbal medicine offers several advantages, including enhanced solubility, protection against degradation, prolonged circulation time, and specific targeting to diseased tissues or cells. Furthermore, nano drug delivery systems can also facilitate the combination of multiple herbal ingredients, enabling synergistic effects and customized therapeutic approaches. This review provides an overview of the recent advancements in nano drug delivery systems for herbal medicine, highlighting their potential applications in various therapeutic areas, such as cancer treatment, neurodegenerative disorders, cardiovascular diseases, and inflammatory conditions. Additionally, challenges and future perspectives regarding the clinical translation of these nanotechnological approaches are discussed. In conclusion, the integration of nanotechnology with herbal medicine holds great promise in revolutionizing the field of healthcare. The development of efficient and targeted nano drug delivery systems can significantly enhance the therapeutic efficacy of herbal remedies, leading to improved patient outcomes and the potential for personalized medicine. Further research and collaborations between scientists, herbalists, and clinicians are needed to unlock the full potential of nano drug delivery systems in herbal medicine.
Keywords: Revolutionizing, Herbal medicine, Nano drug delivery systems, Bioavailability, Stability, Nanotechnology, Nanocarriers, Liposomes, Polymeric nanoparticles, Solid lipid nanoparticles, Nanoemulsions
Strategi Rekrutmen Dan Seleksi Dalam Meningkatkan Profesionalisme Guru MTs. Jam'iyah Mahmudiyah
Authors: Ritonga Lia Ariska , Neliwati Neliwati , Khalila Daulay Nurika 
Published: March 2024

Penelitian ini adalah Strategi Rekrutmen dan Seleksi Tenaga Pendidik dan Kependidikan di Mts, Jamâ€™iyah Mahmudiyah Tanjung Pura Langkat. Adapun tujuan dalam penelitian ini adalah untuk mengetahui Strategi Rekrutmen dan Seleksi Dalam meningkatkan Profesionalisme Guru di Mts Jamâ€™iyah Mahmudiyah Tanjung Pura Kabupaten Langkat. Jenis penelitian ini adalah merupakan penelitian deskriftif kualitatif yaitu prosedur penelitian yang menghasilkan data deskriptif berupa kata-kata tertulis atau lisan dari orang-orang dan pelaku yang diamati, diarahkan dari latar belakang individu secara utuh (holistic) tanpa mengisolasikan individu dan organisasinya dalam variable tetapi memandangnya sebagai bagian dari suatu keutuhan. Dalam teknik pengumpulan data pada penelitian ini dipergunakan berbagai teknik, yaitu wawancara, observasi dan dokumentasi. Prosedur analisis data yang digunakan dalam penelitian ini adalah analisis kualitatif. Berdasarkan temuan hasil penelitian dan pembahasan maka hasil penelitian ini dapat disimpulkan bahwa pelaksanaan rekrutmen dan seleksi tenaga pendidik dan kependidikan di Mts Jamâ€™iyah Mahmudiyah Tanjung Pura dilaksanakan dengan beberapa tahap yaitu tahap pertama dilaksanakan sesuai dengan tahapan rekrutmen karena tahapan rekrutmen dan seleksi yang pertama adalah melakukan penentuan kebutuhan yang diperlukan untuk menjadi tenaga pendidik, kemudian mengonfirmasi adanya lowongan melalui media massa, kedua Seleksi administrasi dilakukan oleh sekolah, seleksi administrasi ini meliputi seleksi berkas-berkas lamaran yang dimasukan oleh calon tenaga pendidik dan kependidikan untuk menentukan apakah sesuai dengan persyaratan yang ditentukan, Pelaksanaan tes calon tenaga pendidik di Mts Jamâ€™iyah Mahmudiyah Tanjung Pura meliputi tes wawancara. Namun demikian, kegiatan rekrutmen dan seleksi ini tidak selalu dilakukan pada setiap tahun pelajaran, tetapi berdasarkan kebutuhan saja
The Impact of Technology Medium on Learning Effectiveness: Comparison of Animated Video-based Scenario, Game Movie and Serious Game
Authors: Djafarova Naza 
Published: March 2024

<p>Many proponents of the digital game-based learning (DGBL) approach believe that learning through games can revolutionize education. Indeed, DGBL is recognized as having the potential to enhance the learning experience, but it is not well researched how it improves learning effectiveness. </p>
<p>This study compares the efficacy between the game and video-based learning tools. Based on Self-Determination Theory and Flow Theory of Optimal Experience, we investigated a relationship between learning tools, motivation, flow, and learning outcomes. </p>
<p>We used the experimental data collection method under controlled conditions with 340 university students. Results showed significantly higher learning outcomes for those who learned through learning tools designed using instructional design methodologies. We suggest that the application of instructional design practices matters, and well-designed game-based and videobased learning tools can be equally effective. It should not be assumed that one format of learning tool is more effective than another.</p>
Hasil Luaran Bayi pada Ibu Hamil yang Mengalami Preeklampsia
Authors: Nurlana Zamaun  , Anna Sari Dewi  , Syamsu Rachmat Faisal , Andi Mappaware Nasruddin , Arfah Arni Isnaini , A. Madjid Djauhariah , Syarifuddin Rauf  
Published: March 2024

Preeklampsia adalah sindrom klinis pada masa kehamilan setelah kehamilan 20 minggu yang ditandai dengan peningkatan tekanan darah >140/90 mmHg. Faktor resiko terjadinya preeklamsia adalah usia, nulliparitas, riwayat preeklamsia sebelumnya, riwayat penyakit hipertensi dan diabetes melitus, riwayat keluarga dan obesitas. Beberapa teori mengemukakan tentang bagaimana terjadinya preeklampsia antara lain teori genetik, teori iskemia uteroplasenter, teori kerusakan endotel pembuluh darah. Tujuan dari literature review ini bertujuan untuk mengetahui hasil luaran bayi pada ibu yang mengalami preeklampsia. Jenis penelitian ini menggunakan literature review dengan desain narrative review yaitu mencari artikel yang membahas tentang hasil luaran bayi pada ibu yang mengalami preeklampsia yang telah dipublikasikan pada jurnal dari tahun 2017-2020. Jurnal dipilih berdasarkan kriteria inklusi dan eksklusi yang telah ditetapkan sebelumnya. Berdasarkan telaah dari beberapa jurnal, didapatkan hasil luaran bayi pada ibu yang mengalami preeklampsia adalah bayi kurang bulan kecil masa kehamilan (KMK), bayi kurang bulan sesuai masa kehamilan (SMK), dan asfiksia.
Evaluation of Prognostic Significance of Serum Magnesium Level in Patients with Acute Myocardial Infarction
Authors: Sumaiya Binte Wahid  , Shahin Ara  , Ayub Ali  , Farzana Sharmin Payel  , Rahaman Md Arifur , Farhana Yasmin  
Published: March 2024

Background: Magnesium has been considered an important factor in the pathogenesis of acute myocardial infarction and its complications. Magnesium ions are essential for the maintenance of the functional integrity of the myocardium. It also improves vascular tone, afterload and cardiac output, and decreases peripheral vascular resistance and cardiac arrhythmias. Serum magnesium concentration has great significance in the prognosis of acute myocardial infarction (MI). Aim and objective: This study aimed to assess the relation of low serum magnesium levels with post-infarction complications of acute MI. Methods: This cross-sectional descriptive study was conducted in the Department of Pharmacology & Therapeutics, Rajshahi Medical College in collaboration with the Cardiology department between July 2019 to June 2020. Assessment and comparison of the serum magnesium level of the patients on the 5th day of post-infarction with the 1st day of admission in 50 patients of acute MI was done in this study. Results: The mean magnesium level was 2.25 ± 0.15 mg/dl in patients without any complications which was significantly higher than the patients who had multiple complications. The level of magnesium was 1.79 ± 0.37 mg/dl in complicated cases. (P˂0.001). These observations suggest that in acute myocardial infarction, patients with low magnesium levels are more prone to develop complications. Conclusion: So it can be concluded that measurement of serum magnesium levels has prognostic significance and magnesium treatment can be implicated in patients of acute myocardial infarction with low magnesium levels.
Mediscope 2024;11(1): 27-33