bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh ROA, Proporsi Dewan Komisaris Independen, ACHANGE, LEV, DCHANGE Terhadap Tax Avoidance
Authors: Rahayu Hesti , Cahyani Ulriche Suci , Valeriyan Gilbert Pius , Sinaga Imelda , Purwati Agnes Susana Merry 
Published: July 2024

The background to this research focuses on several companies that carry out deliberate tax avoidance actions such as not remitting taxes that have been collected by not submitting Tax Returns (SPT). Tax avoidance or tax avoidance is an activity to reduce or eliminate tax debts that should be paid by the company by not violating existing laws. This study aims to detect whether there is a significant relationship between the independent variables in detecting tax avoidance in trading industry companies listed on the Indonesia Stock Exchange during the 2017-2021 period. This study uses a quantitative approach with sample data obtained from annual reports of trading industry companies that have been published on the Indonesia Stock Exchange during the 2017-2021 period. The sample selection technique used was purposive sampling, and data was obtained from 30 samples. The method used is descriptive statistical analysis and multiple regression analysis. The results of this study indicate that the variables Return On Assets (ROA) and Pressure from Outside (LEV) have positive and significant results on tax avoidance. Other factors which include the Proportion of Independent Commissioners, Financial Stability (ACHANGE), and Change of Directors (DCHANGE) do not have a significant effect on tax avoidance.
The Effectiveness of Plant Growth Promoting Rhizobacteria (PGPR) on the Growth of Root Nodules of Peanut Genotypes under Water Deficit Condition
Authors: Restiyah Demy Afiya , Kisman Kisman , Hemon A Farid 
Published: July 2024

The deficiency of water sources and soil fertility are obstacles to producing peanuts in dry land. One of effort to increase production on dry land is the utilization of PGPR biofertilizers. This study aimed to determine the growth of plants and root nodules of several peanut genotypes applied with PGPR, to understand the interaction between several peanut genotypes and PGPR on plant growth and root nodules, and to examine the relationship between water deficit conditions and the formation of root nodules. This experiment used a Complete Randomized Design-split split-plot design with the main plots being D0 = optimal conditions (no water deficit) and D1 = water deficit. The subplots were P0 = no PGPR and P1 = with PGPR. The sub-subplots consisted of five peanut genotypes: V1 = Hypoma-I, V2 = Domba, V3 = Talam, V4 = Bison, and V5 = G300-II. The observations showed that the addition of PGPR resulted in higher plant growth compared to those without PGPR and had more effective root nodules in nitrogen fixation compared to treatments without PGPR. The application of PGPR and genotype did not show significant interaction on plant growth and root nodules under water deficit conditions. Water deficit significantly affected all parameters of plant growth and root nodules. PGPR significantly affected the parameters of leaf number rate, nodule number, and nodule weight. Genotype significantly affected the plant height rate. The interaction of water deficit and genotype significantly affected the leaf number rate, while the interaction of water deficit and PGPR, and the interaction of PGPR and genotype did not significantly affect all observation parameters.
Pattern, Interventions and Outcome of Post-Dural Puncture Headache Among Obstetric Patients in Ibadan
Authors: Abdus-salam RA , Idowu OK , Lawal OO , Raji TA , Adeosun OA , Jayeola IA 
Published: July 2024

Background: Post-dural puncture headache (PDPH) is a complication of dura mater puncture. PDPH poses a problem in postpartum women; hence, there is a need to identify and promptly treat it using highly effective, non-invasive techniques that can be easily implemented in low-resource settings to reduce the burden and associated morbidity.
Objective: To examine the interventions and outcomes of PDPH among women who had a subarachnoid block for obstetric indications at the University College Hospital, Ibadan.
Methods: A prospective, cross-sectional study was conducted among women with a subarachnoid block for obstetric indications. A semi-structured interviewer-administered data collection form was used to assess pain at the onset of the headache and followed up to 72 hours post-treatment.
Results: This study evaluated 26 pregnant women with PDPH. Most respondents (18; 69.2%) were ≥30 years old, had a normal BMI of 11 (42.3%), and 26.9% of the women had a prior history of PDPH. Subarachnoid block was performed by a registrar in 24 (92.3%) women. The majority (22; 84.6%) had only one attempt at dural puncture, all in a sitting position with the 25G-sized spinal needle in 96.2%. The headache was incapacitating in 9 (34.6%) cases and got worse in the upright position in 23 (88.5%) women.
Conclusion: PDPH is a notorious morbidity in parturients, and steps should be taken to minimise the duration and effects of the condition. Prevention, prompt identification, diagnosis, and proactive treatment are desirable.
In silico Study on Physicochemical, Pharmacokinetic and Toxicity Profiles of Available Antiviral Drugs and The Drug-Target Interaction with Protease of SARS-CoV-2
Authors: Diyah Nuzul Wahyuning , Ghifari Aileen Syifa , Hidayati Shabrina Wahyu , Ekowati Juni 
Published: July 2024

Introduction:Â In emergency conditions such as the COVID-19 pandemic, many drugs treating SARS-CoV-2 are currently being developed through the concept of repurposing the existing drugs. This study aims to evaluate the physicochemical, pharmacokinetic and toxicity (ADMET) profiles of 15 drugs that have been used clinically for other viral diseases, and inspect their activity as antivirals against SARS-CoV-2.Â Methods:Â The physicochemical properties were obtained by using the ChemDraw and the ADMET were predicted using pkCSM on line tools. The selected drugs based on Lipinski's Rules were docked into main protease of SARS-CoV-2 (PDB. 6LU7) using Molegro program.Â Results:Â Six drugs complied with Lipinski's Rules and showed good ADMET profile except for their hepatotoxicity, but favipiravir and oseltamivir were predicted to be non-hepatotoxic. Oseltamivir also showed high binding affinity with free energy score below -100 kcal/mol.Â Conclusions:Â Oseltamivir is a potential antivirus for COVID-19 based on physicochemical, ADMET profile, and in silico activity against protease of SARS-CoV-2.Â
Nilai Rasio Neutrofil Limfosit (NLR) Terhadap Komorbid Hipertensi Pada Pasien Covid-19
Authors: Maulidiyanti Ellies Tunjung Sari , Azizah Fitrotin , Hidayat Mariza , Purwaningsih Nur Vita , Widiyastuti Rahma 
Published: July 2024

Tingkat kematian pasien Covid-19 lebih tinggi pada pasien yang memiliki komorbid dibandingkan dengan pasien tanpa komorbid dikarenakan imunitas yang lebih rendah. Kondisi dan tingkat keparahan infeksi dapat terjadi akibat peningkatan ikatan virus dengan sel target yang memanfaatkan ACE-2. Disfungsi endotel vascular pada pasien Covid-19 dengan komorbid hipertensi dapat meningkatkan keparahan infeksi hingga beresiko kematian. Hal itu terjadi karena pada pasien yang menderita hipertensi dapat meningkatkan ekspresi reseptor ACE-2 akibat disfungsi pada sel endotel vascular. Parameter pemeriksaan hematologi yang dapat digunakan untuk pemeriksaan adalahÂ Nilai Rasio Limfosit/ Neutrophil Lymphocyte Ratio (NLR). NLR dapat digunakan untuk melihat dan memantau status inflamasi atau prediksi tingkat keparahan yang terjadi sebagai faktor resiko Covid-19. Tujuan dari penelitian ini adalah untuk mengetahui nilai NLR (Neutrophil Lymphocyte Ratio) pada pasien Covid-19 dengan komorbidÂ hipertensi. Jenis penelitian yang digunakan adalah deskriptif, dengan sampel penelitian sebanyak 50 data pasienÂ dalam kurun waktu 1 tahun (Desember 2020 - Desember 2021).Â Didapatkan hasilÂ dari 50 data pasienÂ yaituÂ sebanyak 26 pasien (52%) memiliki nilai NLR normal (<3,13) dan 24 pasien (48%) memiliki nilai NLR diatas nilai normal (>3,13), sertaÂ rata-rata nilai NLR dari 50 pasien Covid-19 dengan komorbid hipertensi adalah 4,13.
Gambaran Penggunaan Obat Anti Tuberkulosis (OAT) di Puskesmas Kabupaten Banyuwangi
Authors: Kustriyani Anung , Amanda Deviani Dita , Sriyanti Titis , Rizki Amalia Saradila , Robiati Andini Nur 
Published: July 2024

Obat Anti Tuberkulosis merupakan obat yang digunakan sebagai terapi farmakologi pada pasien Tuberkulosis. Obat tersebut diberikan oleh Pemerintah sebagai obat program. Pasien Tuberkulosis dapat memperoleh obat tersebut di Puskesmas. Tujuan penelitian ini yaitu mengetahui gambaran penggunaan Obat Anti Tuberkulosis di Puskemas Kabupaten Banyuwangi. Metode penelitian yang digunakan adalah observasional yang dilakukan secara retrospektif. Data yang dihasilkan berupa deskriptif kuantitatif. Sampel yang digunakan dalam penelitian adalah resep obat anti tuberkulosis yang diperoleh dari unit farmasi 4 Puskesmas Kabupaten Banyuwangi. Penggunaan obat pada 4 Puskesmas adalah Kategori 1 dan 2 yaitu Puskesmas Klatak, Sobo, Genteng Kulon, dan Singotrunan masing-masing sejumlah 71 pasien (89,9%) dan 3 pasien (3,8%), 55 pasien (90,1%) dan 4 pasien (6,7%), 52 pasien (85,2%) dan 9 pasien (14,8%), dan 58 pasien (96,7%) dan 2 pasien (3,3%). Kategori anak hanya digunakan di Puskesmas Klatak dan Sobo masing-masing sejumlah 5 pasien (6,3%) dan 2 pasien (3,2%). Pengobatan kategori 1 digunakan pada 4 Puskesmas untuk pengobatan Tuberkulosis paru atau ekstra paru pasien baru. Kesimpulan penelitian ini yaitu penggunaan Obat Anti Tuberkulosis terbanyak yang digunakan di Puskesmas Banyuwangi adalah Kategori 1.
Pengaruh Alat Bantu Pillbox Terhadap Kepatuhan Pasien Diabetes Mellitus Tipe II di RS Umum Nirwana Banjarbaru
Authors: Wati Helmina , Restiana Rusida Esty , Sri Wahyuni Ririn 
Published: July 2024

Kepatuhan pasien untuk meminum obat memegang peranan sangat penting pada keberhasilan pengobatannya untuk menjaga kadar glukosa darah dalam rentang normal. Tujuan dari penelitian ini adalah mengetahui pengaruh pillbox terhadap nilai kadar glukosa darah pada pasien diabetes mellitus tipe 2 di RS Umum Nirwana. Penelitian ini menggunakan metode non-eksperimenal dengan rancangan cross-sectional dengan jumlah sampel 30 orang yang memenuhi kriteria inklusi. Data kadar glukoas darah dianalisis menggunakan uji wilcoxon test. Hasil menunjukkan bahwa nilai rata-rata kadar glukosa darah sebelum dan sesudah diberikan alat bantu pillbox yaitu 318.43 mg/dl;191.93 mg/dl secara berturut turut. Kesimpulan yaitu terdapat pengaruh pillbox terhadap kadar glukosa darah sebelum dan sesudah diberikan pillbox pada pasien diabetes mellitus tipe 2 di RS Umum Nirwana (p value=0,000).
A Brief Reading of the Fox’s Discourse in The Little Prince
Authors: Ray Devjani 
Published: July 2024

This essay briefly looks at how Antoine de Saint-Exupéry in his novella The Little Prince champions a transformation of the world through “establishing ties”. Here, the fox’s discourse on “taming” has been discussed to explore Exupéry intentions. In this paper, we draw from Bakhtin’s concept of heteroglossia, which encapsulates the representation of multiple, distinct voices within a single text. The discussion reveals that throughout the story Exupéry has attempted to expose the futility of the abstract accumulation of wealth and power and has offered in its stead a celebration of childlike wonder and a plea for a unified world founded upon the principles of loving solidarity.
Materials Developments for Ultrasupercritical Steam Turbines
Authors: Scarlin Brendon , Vanstone Rod , Gerdes Ralf 
Published: July 2024

Abstract
Power generation technology selection is driven by factors such as cost, fuel supply security, and environmental impact. Coal remains a popular choice due to its global availability, but efficient, reliable, and cost-effective methods are essential. In Europe, efforts focus on advancing coal-fired steam power plants to ultrasupercritical conditions, with boilers and turbines now operating at up to 600°C. This has improved efficiency and maintained reliability comparable to subcritical plants. Orders are in detailed planning for plants exceeding 600°C, thanks to improved high-temperature steels for components like turbine rotors, casings, steam pipes, and boiler tubes, which undergo rigorous development and testing. Further efficiency gains are expected by increasing steam temperatures to over 700°C using nickel-based alloys. Test facilities are being built for pilot components, leading to a full demonstration plant. This systematic approach to materials development and proven design principles ensures operational reliability.
Materials Development for Boilers and Steam Turbines Operating at 700°C
Authors: Blum Rudolph , Vanstone R.W. , Messelier-Gouze C. 
Published: July 2024

Abstract
In Europe, the development of boilers and steam turbines for operation above 700°C is part of the EU-supported AD700 project. This collaborative effort includes major European power plant manufacturers, utilities, and research institutes. The project began in 1998 and was extended to 2003, with a second phase running from 2002 to 2005, potentially extending further for long-term creep tests. The goal is to develop the necessary technology for constructing and operating such plants. This paper outlines the development of high-temperature materials crucial for the AD700 project. It covers factors influencing alloy design and selection, the scope and results of investigations on candidate alloys, and the ongoing program for full-scale prototype component manufacturing. These prototypes undergo extensive long-term testing. Additionally, the development of joining procedures for these materials is discussed.
Alloy Design of Creep and Oxidation Resistant 9Cr Steels for Thick Section Boiler Components Operating at 650°C
Authors: Abe Fujio 
Published: July 2024

Abstract
To enhance long-term creep strength at 650°C, stabilization of the lath martensitic microstructure near prior austenite grain boundaries has been investigated for a 9Cr-3W-3Co-0.2V-0.05Nb steel. This was achieved by adding boron to stabilize M23C6 carbides and dispersing fine MX nitrides. Creep tests were conducted at 650°C for up to approximately 3 × 104 hours. Adding a large amount of boron exceeding 0.01%, combined with minimized nitrogen, effectively stabilized the martensitic microstructure and improved long-term creep strength. The amount of available boron, free from boron nitrides and tungsten borides, is crucial for enhancing long-term creep strength. Reducing the carbon concentration below 0.02% led to a dispersion of nano-sized MX nitride particles along boundaries and in the matrix, resulting in excellent creep strength at 650°C. A critical issue for the 9Cr steel strengthened by MX nitrides is the formation of Z-phase, which degrades long-term creep strength. Excess nitrogen additions of 0.07 and 0.1% promoted Z-phase formation during creep. The formation of a protective Cr-rich oxide scale was achieved through a combination of Si addition and pre-oxidation treatment in argon, significantly improving the oxidation resistance in steam at 650°C.
Creep Rupture Properties of Grade 91 Weldments
Authors: Cohn Marvin J. , Paterson Steve R. , Coleman Kent 
Published: July 2024

Abstract
The use of creep strength-enhanced ferritic alloys like Grade 91 has become popular in fossil power plants for applications at temperatures above 566°C (1050°F). Compared to Grades 11 and 22, Grade 91 offers higher stress allowables, better ramp rate tolerance, weight reduction, and lower thermal expansion coefficients at operating temperatures. However, Grade 91's superior elevated temperature strength requires specific microstructure and metallurgical considerations. This paper highlights concerns that warrant further investigation. Initial operating stresses in Grade 91 piping systems may exceed 262 MPa (38 ksi), and lack of creep relaxation below 593°C (1050°F) could lead to weldment failures within years, especially above 159 MPa (23 ksi) after one year. While cold spring can reduce initial stresses for systems below 593°C (1050°F), creep relaxation rates up to 206 MPa (30 ksi) need study. Above 593°C (1050°F) and below 103 MPa (15 ksi), weldments may fail prematurely by Type IV creep mechanism. Long-term creep rupture studies on cross-weld and multiaxially loaded thick-walled specimens should evaluate deteriorated weldment properties, particularly below 103 MPa (15 ksi).
Assessment of the Steam Oxidation Behavior of High-Temperature Power Plant Materials
Authors: Osgerby S. , Fry A. 
Published: July 2024

Abstract
This study investigates the growth kinetics and spallation behavior of oxide scales formed under steam environments on alloys used in high-temperature plants. The influence of alloy composition is analyzed using two approaches: an empirical model based on the concept of “chromium equivalent” and a neural network model. Both models demonstrate a good correlation with experimental results when sufficient data is available to generate the model parameters. However, there is insufficient data on scale spallation to develop similar models describing the influence of alloy composition on this phenomenon.
Characterization of Multi-Scale Structures for a Creep-Fatigued Ferritic Heat-Resisting Steel
Authors: Hayakawa M. , Yamaguchi K. , Kimura M. , Kobayashi K. 
Published: July 2024

Abstract
Microstructural analyses by FE-SEM and TEM were performed on a ferritic heat-resisting steel that contained 12mass% chromium and 2mass% tungsten to characterize its multi-scale structure, consisting of prior austenite grains, packets, blocks, subgrains and precipitates. The size distributions of the block, subgrains and precipitates were quantitatively evaluated before and after a creep-fatigue test to relate them to their creep-fatigue property. Our results showed that the occupancy of precipitates on prior austenite grain boundaries increased markedly and subgrains became coarse during the creep-fatigue test, while block size did not change. It is suggested that the growth of grain boundary precipitates and coarse subgrains plays an important role in the intergranular fracture mechanism caused by creep-fatigue.
Dependence of High-Temperature Steam Oxidation Resistance on the Stability of the Chromium Sulfide in High-Chromium Heat-Resistant Steels
Authors: Nakai M. , Murata Y. , Morinaga M. , Hashizume R. 
Published: July 2024

Abstract
The presence of sulfur at an impurity level in heat resistant steels could improve remarkably the steam oxidation resistance. As is well known, sulfur tends to form sulfides, in particular, chromium sulfides when the steel contains chromium. Therefore, there are two possibilities of sulfur states in the steel. One is in atomic sulfur state as a solid solution, and the other is in sulfide state as a precipitate. However, it still remains unclear which sulfur state contributes largely to the improvement of the steam oxidation resistance of the steels. In order to elucidate the sulfur state operated more effectively in improving the oxidation resistance, the steam oxidation resistance was investigated with high chromium ferritic steels, Fe-10mass%Cr-0.08mass%C-(0~0.015)mass%S, with controlling the sulfur states in them by proper heat treatments. From a series of experiments, it was found that the sulfide state played a more important role in improving the steam oxidation resistance than the atomic sulfur state. Furthermore, this sulfur effect worked significantly in the steam oxidation test performed at the temperatures above 873K which corresponded to the temperature for the chromium sulfide to dissolve and instead for the chromium oxide to form in the steels. This result indicates that the beneficial effect of sulfur in improving the steam oxidation resistance is related closely to the sulfide stability against the oxide in the steels.
Life Extension of Main Steam Line
Authors: Erenburg B. 
Published: July 2024

Abstract
Numerous factors, including actual chemical composition, heat treatment, microstructure, dimensions, and service conditions, determine the lifetime of creep-exposed components. This creates a wide gap between the real condition of a given steel pipe and its project specification. For a 141MW unit main steam line, the remaining life calculated according to the German Boiler Code TRD 508 was found to be almost exhausted. It was recommended to remove a pipe sample with a circumference weld for laboratory examination. Stress rupture tests were performed on three types of specimens: tangential, longitudinal, and longitudinal with a heat-affected zone in the middle of the gauge length using the isostress testing method. Metallographic examination of the broken specimens was conducted. Linear extrapolation of the rupture times to the service temperature yielded a residual service life of more than 100,000 hours.
Revealing Creep Associated and Industrial Flaws in Operating High Energy Piping by Quantitative Acoustic Emission Method
Authors: Muravin B. , Muravin G. , Lezvinsky L. 
Published: July 2024

Abstract
High-pressure and high-temperature piping in fossil power plants suffer from unexpected and rarely predictable failures. To prevent failures and ensure operational safety, a Quantitative Acoustic Emission (QAE) non-destructive inspection (NDI) method was developed for revealing, identifying, and assessing flaws in equipment operating under strong background noise. This method enables overall piping inspection during normal operation, locating suspected zones with developing low J-integral flaws, identifying flaw types and evaluating danger levels based on J-integral values, and detecting defective components prior to shutdown. Combining continuous and burst acoustic emission as an information tool, the QAE NDI revealed, identified, and assessed significant flaws like creep, micro-cracks, pore/inclusion systems, plastic deformation, and micro-cracking in over 50 operating high-energy piping systems. Findings were independently verified by various NDI techniques, including time of flight diffraction, focused array transducers, magnetic particles, ultrasonic testing, X-ray, replication, and metallurgical investigations.
High Temperature Cross-Weld Characterization of P22 and P91 Steel Welds by Micro-Tensile Testing
Authors: Dogan B. , Ceyhan U. 
Published: July 2024

Abstract
Material properties and damage mechanisms exhibit significant variation across weldments. Micro tensile (MT) testing of specimens machined from specific narrow weldment zones is one method to characterize local property variation. Although limited, the literature data on micro-tensile specimen testing reports on low-temperature behavior. However, cross-weld local material data at high service temperatures have not been reported yet. In the present study, MT tests are conducted across similar P22 and P91 steel welds at 550°C and 600°C, respectively. To study deformation mechanisms and the role of surface condition on properties, specimens with different surface conditions (machined, polished, and electropolished) are tested. Two different loading rates of 0.2 mm/min and 0.5 mm/min are used to study the effect of loading rate on deformation and mechanical properties. Variations in weldment material properties are presented as a function of specimen surface conditions and loading speeds. Deformation behavior is studied on the side surfaces of tested micro-tensile specimens using SEM. Deformation is correlated to the microstructural constituent observed on side surfaces.