bluuebunny/crossref_metadata_2025_split huggingface dataset:
Weld Solidification Behavior and Performance of Nickel-Base Superalloy GH750 for Use in 700 °C Advanced Ultra-Supercritical Boiler
Authors: Zhao Shuangqun , Wang Yanfeng , Li Qiang , Fu Rui 
Published: March 2024

Abstract
A new nickel-base superalloy GH750 has been developed as boiler tube of advanced ultrasupercritical (A-USC) power plants at temperatures about and above 750°C in China. This paper researched the weld solidification of GH750 filler metal, microstructure development and property of GH750 welded joint by gas tungsten arc weld. Liquid fraction and liquid composition variation under non-equilibrium state were calculated by thermo-dynamic calculation. The weld microstructure and the composition in the dendrite core and interdendritic region were analyzed by SEM(EDX) in detail. The investigated results show that there is an obvious segregation of precipitation-strengthening elements during the weld solidification. Titanium and Niobium are the major segregation elements and segregates in the interdendritic region. It was found that the changing tendency of the elements’ segregation distribution during the solidification of GH750 deposit metal is agree with the thermodynamic calculation results. Till to 3,000hrs’ long exposure at 750°C and 800°C, in comparison with the region of dendrite core of solidification microstructure, not only the coarsening and the accumulation of γʹ particles are remarkable in the interdendritic region, but also the small quantity of the blocky and needle like η phases from. The preliminary experimental results indicate that the weakening effect of creep-rupture property of the welded joint is not serious compared with GH750 itself.
Creep Life Assessment of γ′ Precipitation Strengthened Ni-Based Superalloys for High Efficiency Turbine Components
Authors: Oinuma Shun , Takaku Reki , Nakatani Yujiro , Takeyama Masao 
Published: March 2024

Abstract
700°C advanced ultra-supercritical system and supercritical CO2 turbine system are developed for high efficiency turbine systems for next generation. This study covered the feasibility of creep life assessment of γ’-Ni3(Al,Ti) precipitation strengthened Ni-based superalloy rotor material, TOS1X-2, a modified alloy of UNS N06617 for these systems, based on hardness measurement method. It was found that the hardness of TOS1X-2 was governed by the change in precipitation strengthening and strain hardening during creep. The clear relationship between hardness increase in crept portion and macroscopic creep strain was observed, suggesting that it might be possible to estimate the creep strain or initiation of acceleration from hardness measurement. Microstructure inhomogeneity and microstructure evolutions during creep especially focused on dispersion of creep strain were characterized by EBSD quantitative analysis. It was found that creep strain was accumulated along the grain boundary, while it was relatively absent in coarse grains with low Schmid factor of {111} &lt;110&gt; slip system in fcc structure. The upper limit of hardness scatter band is thought to be important, since it represents the local and critical creep damage of the alloy.
Microstructural Evolution of a Creep Aged Tempered Martensitic Ferritic Steel during Welding
Authors: Marx G , Westraadt JE , Neethling JH , Pete T , Bezuidenhout M 
Published: March 2024

Abstract
The present study presents a detailed investigation on the evolution of the microstructure during welding on virgin and long-term service exposed (creep aged 1 = 535°C; 16.1 MPa; 156 kh and creep aged 2 = 555°C; 17.0 MPa; 130 kh) 12% Cr (X20CrMoV11-1) martensitic steel. This study was carried out in order to understand the impact of welding on prior creep exposed Tempered martensite ferritic (TMF) steel and to explain the preferential failure of weldments in the fine grained heat affected zone (FGHAZ) of the creep aged material side instead of the new material side. Gleeble simulation (Tp = 980°C; heating rate = 200 °C/s; holding time = 4 seconds) of the FGHAZ was performed on the materials to create homogeneous microstructures for the investigation. Quantitative microstructural investigations were conducted on the parent plate and simulated FGHAZ materials using advanced electron microscopy to quantify: a) voids, b) dislocation density, c) sub-grains, and d) precipitates (M23C6, MX, Laves, Z-phase) in the materials. Semi-automated image analysis was performed using the image analysis software MIPARTM. The pre-existing creep voids in the creep aged parent material and the large M23C6 carbides (Ø &gt; 300 nm) in the FGHAZ after welding are proposed as the main microstructural contributions that could accelerate Type IV failure on the creep aged side of TMF steel weldments.
Analisa Yuridis Tingginya Dispensasi Perkawinan di Kota Banjarmasin
Authors: Septarina Muthia , Munajah Munajah , Nahdhah Nahdhah 
Published: March 2024

Di Indonesia pernikahan merupakan hak setiap warga Negara. Di dalam Pasal 28B ayat(1) Undang-Undang Dasar Negara Republik Indonesia (UUD-NRI) menjamin akan hal ini. Pasal tersebut berbunyi :”Setiap orang berhak membentuk keluarga dan melanjutkan keturunan melalui perkawinan yang sah.” Aturan dasar tersebut diwujudkan dengan keberadaan UndangUndang Nomor 1 Tahun 1974 Tentang Perkawinan (UUP). Pada dasarnya, setiap orang berhak untuk melangsungkan pernikahan, termasuk orang yang masih terkategori anak. Akan tetapi dengan pertimbangan perkawinan pada usia anak menimbulkan dampak negatif bagi tumbuh kembang anak dan akan menyebabkan tidak terpenuhinya hak dasar anak, Pemerintah kemudian merevisi mengenai batasan usia kawin melalui Undang-Undang Nomor 16 Tahun 2019. Pria maupun wanita ditentukan usia minimal untuk menikah adalah 19 (sembilan belas) tahun. Apabila akan melangsungkan pernikahan di bawah usia tersebut, maka orang tua pihak pria dan/atau orang tua pihak wanita dapat meminta dispensasi kepada Pengadilan. Pengadilan Agama memberikan izin kawin karena alasan mendesak. Pada kenyataannya permohonan dispensasi kawin ini angkanya cukup tinggi. Metode yang digunakan dalam penelitian ini adalah yuridis sosiologis yaitu penelitian yang akan mengkaji dari sisi perundang-undangan sekaligus dengan memperhatikan kenyataan yang terjadi di masyarakat dari tingginya angka dispensasi kawin. Hasil dari penelitian ini yaitu Faktor Penyebab Pengajuan Dispensasi Perkawinan di Kota Banjarmasin, yaitu : pertama, dampak dari ketentuan usia 19 tahun maka meningkatkan permohonan dispensasi nikan serta kekhawatiran orangtua terhadap pergaulan bebas. Kedua, Penerapan Ketentuan Dispensasi Perkawinan di Kota Banjarmasin untuk menolak atau mengabulkan dengan memperhatikan apakah calon suami sudah bekerja atau belum atau apakah calon istri masih sekolah ataukah tidak memperhatikan pula kepada alasan mendesak sebagaimana ketentuan di dalam PERMA.
PREVALENCE AND STRUCTURE OF DENTO-MAXILLOFACIAL ANOMALIES IN CHILDREN
Authors: Byala O.-Kh.A. 
Published: March 2024

The high level of dental morbidity in the children's population of Ukraine remains one of the urgent problems of modern dentistry. Dental health is largely characterized by the correctness of the structure of the mandibular system, its proper functioning and balance, and its condition is one of the preventive and quite clearly fixed indicators of health/ ill health of the human body in general. The pathology of the maxillofacial system affects not only the state of health, but also the quality of life of the patient, his emotional and social well-being.
In this context, information on the prevalence of dentomandibular abnormalities and the overall need for orthodontic treatment is essential to provide objective information to health care stakeholders in order to make an adequate allocation of health care resources based on objective epidemiological data. In addition, dento-mandibular anomalies, which are not detected and not eliminated in childhood, in the process of growth and development of the facial skeleton over time acquire more severe forms, which become more pronounced and are less amenable to treatment. Therefore, the analysis of the prevalence and severity of ASD in children is an important stage in the process of planning preventive and therapeutic measures.
Data from literary sources indicate a high prevalence of dento-maxillofacial anomalies among children in different age periods and depending on the characteristics of the area of residence. In particular, the results of the examination of children aged eight months to seventeen years, residents of different regions of Ukraine, given in scientific works of recent years, indicate a high prevalence of dento-jaw anomalies (41%77.9%).
The high prevalence of dento-mandibular anomalies indicates the need for timely diagnosis at the early stages of the development of orthodontic pathology, which will contribute to timely treatment, which will subsequently be able to ensure the normal development of the child's dento-mandibular system and improve the quality of life.
USING OF THE MODELS IN PRACTICE-ORIENTED EDUCATION DURING LEARNING OF PEDIATRIC DENTISTRY
Authors: Kaskova L.F. , Yanko N.V. , Novikova S.Ch. , Chupryna L.F. , Artemyev A.V. 
Published: March 2024

Teachers of clinical departments of establishments of higher medical education are faced with the problem of practical training of students, and many methods have been proposed for its improvement.
The purpose of the study was to consider the models of practice-oriented education that can be used
during the teaching of pediatric therapeutic dentistry.
One Minute Preceptor model is used by the teacher during a 1-5-minute conversation with the student to guide diagnostic and treatment processes; initially a student examines a patient, then presents the clinical case, after which the teacher manages his behavioral reactions.
SNAPPS model (Summarize + Narrow + Analyze + Probe + Plan + Select) describes 6 stages of the clinical training. The model includes analysis of the medical history and examination methods, choice of the diagnoses for differential diagnostic, proper differential diagnosis, questions to the teacher about uncertainties, discussion of patient’s treatment plan and questions and sources related to the clinical case for independent processing.
Within the framework of pattern recognition and reproduction model (standard cases), student talks about the main problem that worries the patient and offers his diagnosis based on key symptoms during 30 seconds. Teacher personally examines patient, makes a diagnosis or discusses why it cannot be made with certainty, and evaluates the student’s actions.
All described models of practice-oriented learning improve the expression of reasoning without much impact on the time spent for case presentation. Pattern recognition and reproduction model is especially useful in dentistry to recognize widespread clinical cases. One Minute Preceptor model, which involves the initiative and mentoring role of the teacher, fits well for beginners, while SNAPPS model, that focused on independent work of students, for strong students.
Factors influencing blood tumor marker concentrations in the absence of neoplasia
Authors: Trapé Jaume , Fernández-Galán Esther , Auge Josep Maria , Carbonell-Prat Marina , Filella Xavier , Miró-Cañís Sílvia , González-Fernández Carolina ,   on behalf of Oncology Biomarkers Section of the Catalan Association of Clinical Laboratory Science
Published: March 2024

BACKGROUND: Tumor markers (TMs) are a heterogeneous group of molecules used in the diagnosis, prognosis and follow-up of cancer patients. During neoplastic differentiation, cells can either directly synthesize or induce the synthesis of TMs, and the release of these molecules into the bloodstream allows their quantification in biological fluids. Although very small concentrations of TMs are usually present in the serum or plasma of healthy subjects, increased concentrations may also be found in the presence of benign diseases or due to technical interference, producing false positive results. MATERIAL AND METHODS AND RESULTS: Our review analyses the causes of false positives described between January 1970 to February 2023 for the TMs most frequently used in clinical practice: α-fetoprotein (AFP), β2-microglobulin (β2-M), cancer antigen 15-3 (CA 15-3), cancer antigen CA 19-9 (CA 19-9), cancer antigen CA 72-4 (CA 72-4), cancer antigen 125 (CA 125), carcinoembryonic antigen (CEA), chromogranin A (CgA), choriogonadotropin (hCG), cytokeratin 19 fragment (CYFRA 21-1), neuron-specific enolase (NSE), human epididymis protein 4 (HE4), serum HER2 (sHER2), squamous cell carcinoma antigen (SCCA), protein induced by vitamin K absence-II (PIVKA-II), Pro-gastrin-releasing peptide (Pro-GRP), prostate-specific antigen (PSA), Protein S-100 (S-100) and thyroglobulin (Tg). A total of 247 references were included. CONCLUSIONS: A better understanding of pathophysiological processes and other conditions that affect the concentration of TMs might improve the interpretation of results and their clinical application.
me-dÃ©rive: toronto: Remediating the [AR]chival Impulse
Authors: Morais Ana Rita 
Published: March 2024

<p>This dissertation is an innovative exploration of the intersections between participatory archiving and augmented reality (AR), rooted in the necessity to engage more fully with Torontoâ€™s diverse and historical cultural heritage. Foregrounded as research-creation, this work describes, theorizes, and disseminates an AR counter-archiveâ€” <em>me-deÌ rive: toronto</em>. Mobilizing power away from institutional archives and into the hands of the public, me-deÌ rive: toronto uses the power of locative media in order to provide records of Torontoâ€™s diverse past and present in-situ. A portmanteau of the word â€˜mediationâ€™ and the Situationistâ€™s notion of the <em>deÌ rive</em>, the app produces a new paradigm to the archiveâ€” one that is simultaneously participatory and techno-informed. With every found photograph and submission alike the project multiples both in volume and vigor to combat the archival injustices that fail to narrativize Canadian immigrant identities.Â </p>
<p>This counter-archive reclaims space through a participatory visual account of history, allowing for a different kind of knowledgeâ€”one that is techno-embodiedâ€”to emerge and be embraced. As the scope of the records and overall scale of the project amplifies, it engages a layer of complementary principlesâ€” the accrual of diverse narratives, the opposition of pre-prescribed history by governing institutions, and the dynamism to employ technology to engage critically with heritage records beyond the confinements of exclusive cultural spaces.Â </p>
<p>Through historical research, precedent scanning, insights into cultural production, participatory and mobile app observation and research-creation projects, counter-archival projects demand that institutions become more inclusive, not only in collection practices, but in dissemination and access practices as well. My research addresses the gaps and omissions that exist in our institutional archives, while making explicit what is needed to make a more holistic, comprehensive archive of Torontoâ€™s diverse narratives.Â </p>
Efficacy of Oral Prednisolone in the Management of Idiopathic Granulomatous Mastitis
Authors: Tazdina Hoque Khan  , Shahidul Huq  , S M Minhajul Hasan Chowdhury  , Tahira Benzir  , Abdullah Al Maruf  , Faisal Mostafa  , Syed Aminul Haque  
Published: March 2024

Background: Idiopathic granulomatous mastitis (IGM) is a benign inflammatory lesion of the mammary gland. Globally it possesses a major diagnostic and therapeutic problem. To date, there is no universally agreed treatment for this condition. Many treatment modalities have been attempted from conservative therapy to mastectomy but none of them has shown satisfactory results. Recent studies have shown promising results of corticosteroids on idiopathic granulomatous mastitis, so steroid therapy can be an effective treatment for idiopathic granulomatous mastitis. The goal of the study is to provide a therapeutic strategy in the future for idiopathic granulomatous mastitis. Methods: Our study included all patients with idiopathic granulomatous mastitis confirmed histologically by core needle/incisional biopsy at the general surgery unit of Chittagong Medical College Hospital and the private hospitals in the Chittagong Metropolitan City for a period of one year from October 2016 to September 2017. A total of seventy patients were included in the study provided they fulfilled predetermined criteria. All of them were included in this study by purposive sampling. After diagnosis oral prednisolone (1mg/kg/day) was given and the cases were observed by personal interview and through telephone interview. The patients were on follow-up for 06 months. Age, size of the breast lump, breast pain, nipple discharge, and skin changes were recorded in all cases. Results were analyzed using mean, percentage, and proportion as appropriate. Results: The mean age was 26.35±13.5 years ranging from 19 to 40 years. Out of 70 patients, Core cut biopsy was done in 55 patients (78.58%), and incisional biopsy with abscess drainage was performed in 15 patients (21.42%). 59 patients (84.28%) had complete recovery after a single cycle of steroid treatment, remaining 11 patients (15.72%) had recurrence, among them 6 patients were cured after 2nd cycle of steroids but unfortunately, 5 patients did not respond. Though complications were found in 50 patients, all of them made good progress in the short term. Conclusion: We recommend steroid therapy as the first-line treatment in our study. However, prospective, randomized clinical trials are needed to determine the treatment algorithm.
Mediscope 2024;11(1): 22-26
EDUKASI PENGGUNAAN ANTIBIOTIK RASIONAL DI DESA PESISIR WAWORAHA KECAMATAN SOROPIA KONAWE SELATAN SULAWESI TENGGARA
Authors: Ihsan Sunandar , Ruslin Ruslin , Henny Kasmawati  , Munasari Solo Dian 
Published: March 2024

Penggunaan antibiotik di indikasikan untuk infeksi bakteri, namun dalam praktek penggunaanya di masyarakat masih banyak dijumpai tidak rasional. Hal ini dapat menyebabkan resistensi antibiotik yang terus meningkat. Diperlukan edukasi pada masyarakat untuk meningkatkan penggunaan antibiotik yang bijak dan rasional. Kegiatan ini dilakukan untuk mengedukasi masyarakat pesisir agar menggunakan antibiotik lebih tepat, aman dan efektif. Kegiatan ini dilakukan Desa Waworaha Kecamatan Soropia, Kabupaten Konawe Selatan. Metode yang digunakan adalah ceramah dan tanya jawab. Target sosialisasi adalah masyarakat umum dengan target khusus berupa ibu-ibu PKK, karang taruna dan warga sekitar lokasi sosialisasi yaitu di Balai Desa Waworaha. Selain ceramah juga dibagikan leaflet yang berisi informasi penggunaan antibiotik yang rasional. Pembagian leaflet dilakukan oleh mahasiswa PSPPA FF UHO yang tersebar diantara peserta sosialisasi yang bertujuan untuk pemberian informasi lebih lanjut dari materi edukasi yang diberikan. Hasil kegiatan menunjukan masyarakat antusias dengan materi sosialisasi yang ditandai dengan banyaknya pertanyaan yang diajukan oleh peserta sosialisasi. Pertanyaan tersebut berkaitan dengan apa itu antibiotik, bagaimana cara minum obatnya, apa yang harusnya dihindari kalau minum amntibiotik, bisakah minum antibiotik untuk sakit gigi, demam dan flu serta apakah antibiotik diminum hanya diwaktu sakit saja. Pertanyaan ini menunjukan tingkat pengetahuan warga tentang antibiotik memang masih kurang. Diharapkan dengan informasi yang diberikan baik dari materi sosialisasi, leaflet dan jawaban dari pertanyaan yang diajukan, pemahaman masyarakat Desa Waworaha dapat lebih bijak dan rasional dalam menggunakan antibiotik.
Oleh karena itu peningkatan pemahaman terhadap masyarakat perlu terus dilakukan untuk menjamin peningkatan penggunaan antibiotik yang lebih bijak dan rasional.
Multicriteria GIS-based assessment of biomass energy potentials in Nigeria
Authors: Ukoba M. O. , Diemuodeke E. O. , Briggs T. A. , Ojapah M. M. , Okedu K. E. , Owebor K. , Akhtar K. , Ilhami C. 
Published: March 2024

The understanding of the geographical variability of biomass energy is an essential requirement for the optimal location of biomass energy conversion plants. This research presents a multicriteria GIS-based assessment of biomass energy potentials and the appropriate siting of biomass plants in Nigeria. The study applies the weighted overlay multicriteria decision analysis method. Crop and forest areas, settlement (energy supply areas), shrub/grasslands, barren land, water bodies, distance from water sources, road accessibility, topography, and aspect are the criteria that were considered for locating a biomass facility in this study. The results suggest that the theoretical, technical, and economical energy potentials of crop residues are highest in the North-East region of Nigeria and estimated at 1,163.32, 399.73, and 110.56 PJ/yr, respectively, and lowest in the South-East at 52.36, 17.99, and 4.98 PJ/yr, respectively. The theoretical, technical, and economical energy potentials of forest residues are highest in the North-West, estimated at 260.18, 156.11, and 43.18 PJ/yr, respectively, and lowest in the South-East at 1.79, 1.08, and 0.30 PJ/yr, respectively. Although most areas were identified to be suitable for siting biomass plants across Nigeria, the most suitable areas are located in the northern part of the country and include Niger, Zamfara, the Federal Capital Territory, Nassarawa, Kano, Kebbi, Kaduna, and Borno State. The study supports the Nigerian bio-energy policy that proposes to effectively utilize Nigeria’s non-fuelwood as a substitute for the felling of trees. This is very important to strengthen its commitment at the COP26 International Climate Conference, which is to conserve and restore its forest. Furthermore, this study will serve as a good reference for policymakers to make well-informed decisions on tackling the energy insecurity in Nigeria.
TAVR-in-TAVR with a balloon-expandable valve for paravalvular leak
Authors: Nagasaka Takashi , Patel Vivek , Koren Ofir , Shechter Alon , Chakravarty Tarun , Cheng Wen , Ishii Hideki , Jilaihawi Hasan , Nakamura Mamoo , Makkar Raj R. 
Published: March 2024

IntroductionParavalvular leak (PVL) is a severe complication of transcatheter aortic valve replacement (TAVR) that can lead to poor outcomes. TAVR-in-TAVR is a promising treatment for PVL; however, reports on its safety or efficacy are limited. In this study, we aimed to investigate the clinical outcomes of TAVR-in-TAVR using balloon-expandable prostheses for PVLs after TAVR.MethodsWe retrospectively analyzed data from patients who underwent TAVR-in-TAVR using balloon-expandable Sapien prostheses for PVL after an initial TAVR at our institution. The procedural success, in-hospital complications, all-cause mortality, and echocardiographic data for up to 2 years post-surgery were evaluated.ResultsIn total, 31 patients with a mean age of 81.1 ± 7.9 years and mean Society of Thoracic Surgeons score of 8.8 ± 5.4% were identified. The procedural success rate of TAVR-in-TAVR was 96.8% (30/31). No in-hospital deaths, cardiac tamponade, or conversion to sternotomy occurred. Re-intervention was performed in only one patient (3.2%) during hospitalization. The all-cause mortality rates at 30 days and 2 years were 0% and 16.1%, respectively. A significant reduction in the PVL rate was observed at 30 days compared with that at baseline (p &lt; 0.01).DiscussionOur findings suggest that TAVR-in-TAVR using balloon-expandable prostheses is safe and effective for PVL after TAVR with low complication rates and acceptable long-term outcomes. Further studies with larger sample sizes are needed to confirm our findings.