bluuebunny/crossref_metadata_2025_split huggingface dataset:
In-vitro Cytotoxic activity of Papaverine compound isolated from Aqueous Ethanolic leaf extract of Erythrina subumbrans (Hassk.) Merr.
Authors: Ganesh S  , Vijey Aanandhi M  
Published: May 2021

Natural compounds that occur either in pure form or as extract after standardization from medicinal plants, provide a limitless chance for new discovery leads because of consummate chemical diversity. The rising demand for compounds that occur naturally during screening studies, that has therapeutic action predominantly on the vegetative part of the plant has grown across the world. In this study, Papaverine compound was isolated from aqueous Ethanolic extract (80%) from vegetative (leaf) part of herbal plant Erythrina subumbrans (Hassk.) Merr. Isolated compound was subjected for characterization studies like Thin layer chromatography (TLC), Mass spectrophotometry (MS), Fourier Transform Infra-Red (FTIR), 1H and 13C Nuclear magnetic resonance spectroscopy. Confirmatory study using the aqueous ethanolic crude extract by MS technique and mass library match confirms the presence of Papaverine compound. Further, in-vitro cytotoxic activity using Human Melanoma cell line (A375) was carried out using the isolated compound (papaverine), Aqueous ethanolic extract and standard Cisplatin. Six different Concentration ranging from 3.125 to 100 µg/ml were prepared. Control samples were prepared without standard and samples solution. Absorbance measured at 570 nm in UV-Vis spectrophotometer using a microplate reader and the % of viability was calculated. IC50 value of Aqueous ethanolic extract of Erythrina subumbrans, isolated compound-Papaverine and standard Cisplatin exhibits value of 82.14µg, 23.43 µg & 4.02 µg respectively.
Perencanaan Areal Pariwisata Berdasarkan Isu dan Potensi Lokal di Desa Tanah Lemo, Kecamatan Bontobahari, Kabupaten Bulukumba, Provinsi Sulawesi Selatan
Authors: Mulya Setyardi Pratika , Jusman Nurkhusnul Inayah , Pravitasari Andrea Emma 
Published: May 2021

Sektor pariwisata merupakan salah satu sektor utama di Kabupaten Bulukumba. Berdasarkan Rencana Tata Ruang Wilayah (RTRW) Kabupaten Bulukumba tahun 2018-2038 Desa Tanah Lemo merupakan salah satu bagian dari rencana pengembangan destinasi pariwisata. Salah satu destinasi potensi pariwisata yang belum berkembang di Desa Tanah Lemo adalah Pantai Lemo-Lemo. Penelitian ini bertujuan identifikasi penggunaan lahan tahun 2019, menganalisis landrent setiap penggunaan lahan, menentukan prioritas lahan untuk pengembangan kawasan wisata, dan mengidentifikasi strategi pengembangan Kawasan Wisata Pantai Lemo-Lemo. Data yang digunakan adalah citra google earth, peta pola ruang, peta persil, bidang tanah, lahan kritis, arahan pertanian, kemiringan lereng dan lain sebagainya serta hasil wawancara responden. Metode yang digunakan dalam penelitian ini, yaitu interpretasi visual dan klasifikasi tutupan lahan (SIG), analisis landrend, penentuan tingkat prioritas lahan untuk pengembangan kawasan wisata, dan analisis SWOT. Hasil penelitian menunjukkan terdapat 11 jenis penggunaan lahan di lokasi penelitian yaitu badan air, empang, emplasmen, hutan berkerapatan tinggi, hutan berkerapatan rendah, kebun campuran, lahan terbuka, pemukiman kerapatan padat, pemukiman kerapatan sedang, semak belukar dan tegalan. Penggunaan lahan terluas adalah tegalan. Nilai landrent terbesar adalah permukiman penduduk padat sebesar Rp. 150.458/m2/tahun. Berdasarkan tingkat prioritas lahan untuk pengembangan kawasan wisata, prioritas I seluas 49 ha (1.7%), sedangkan yang paling luas adalah prioritas III (54%). Strategi pengembangan kawasan wisata Pantai Lemo-Lemo adalah dengan cara menggiatkan promosi wisata, diantaranya dengan menjadi tuan rumah kegiatan festival wisata lokal atau nasional, mengembangkan wisata mata air, taman hutan rakyat, situs budaya dan mengembangkan alternatif wisata buatan, misalnya taman bermain/outbound dan lain sebagainya. Desa Tanah Lemo memiliki potensi untuk pengembangan pariwisata di masa mendatang.
Process and In-Service Residual Stresses in Thermal Barrier Systems
Authors: Wigren J. , Pejryd L. , Gudmundsson B. , McGrann R.T.R. , Greving D.J. , Rybicki E.F. , Shadley J.R. 
Published: May 2021

Abstract
Thermal barrier coatings are used in several industries to improve thermal efficiency, for example, of gas turbine engines. The performance and life of thermal barrier coated components depend on many factors. One important factor is the residual stresses in the coating and substrate. Residual stresses can be influenced by the parameters of the application process. Parameters affecting residual stresses include the condition of the substrate, the type of spray application process, and the prespray heat treatment of the substrate. Residual stresses can also change significantly during the life of a thermal barrier coated material. The goal of this work is to quantitatively evaluate the changes in residual stresses of the thermal barrier coating and the substrate during the stages of processing and during simulated in-service testing. Through-thickness residual stresses distributions of the coating and the substrate material were determined using a destructive laboratory method, called the "Modified Layer Removal Method." Thin thermal barrier coatings (less than 0.5 mm) were evaluated in this work. Residual stresses in thermal barrier coated specimens were evaluated at three stages of the processing history: (1) after grit blasting of the Hastelloy substrate, (2) after application of the bond coat, and (3) after spraying the top coat. The effect on residual stresses of substrate temperature during spraying is examined. Changes in the residual stresses for thin thermal barrier coatings are shown at selected stages during the processing history of the coated materials. Differences between residual stresses at the selected stages are identified and discussed. Changes to residual stress distribution due to in-service conditions are examined. The effect of bond coat oxidation is examined by long-term, high-temperature exposure. Also, residual stresses are evaluated for thick thermal barrier coatings after thermal shock testing.
New Fusible Alloys with Enhanced Corrosion Resistance
Authors: Kretschmer I. , Heimgartner P. , Polak R. , Kammer P.A. 
Published: May 2021

Abstract
Fusible Ni-B-Si alloys with a variety of alloy additions (Cr, Mo, Cu etc.) have been in service for many years as fused coatings with moderate corrosion resistance. Both gas- and water-atomised powders have been used with the spray and fuse and with the plasma transferred arc process to produce coatings. As the severity of corrosive industrial environments has increased, for example in waste burning boilers, existing alloys have not provided the desired service performance. This study was undertaken to develop a new family of alloys with improved corrosion resistance without sacrificing usability, wear resistance or cost effectiveness. A range of compositions was prepared and evaluated for deposition characteristic, microstructure, hardness, wear resistance and corrosion resistance in various media. The resulting alloy has an exceptional combination of wear and corrosion resistance in comparison to conventional alloys, when tested under comparable conditions.
Microstructure and Abrasion Resistance of WC-Co Coatings Produced by High Velocity Oxy-Fuel Spraying
Authors: Khan M.S.A. , Clyne T.W. , Sturgeon A.J. 
Published: May 2021

Abstract
Coatings have been produced by HVOF spraying of four different WC-Co powders, using two fuel gases and two oxygen contents in the flame, and characterised in terms of microstructure and resistance to abrasive wear. It is concluded that there is a close correlation between high levels of chemical reaction, occurring during spraying (and possibly during powder production), and poor wear resistance. Good wear resistance is favoured by using low porosity powders, which interact with the atmosphere less readily during spraying, and also by using a flame with a relatively low oxygen content. This probably minimises the degree of reaction by ensuring that conditions are reducing. Use of propylene rather than hydrogen gives coatings with slightly better wear resistance, despite the fact that the flame temperatures are higher. It is concluded that, for this relatively small rise in temperature, the positive effect on inter-splat cohesion seems to outweigh the negative effect of increased decarburisation.
Changes in the Microstructure of Plasma-Sprayed Yttria-Stabilized Zirconia Deposits during Simulated Operating Conditions
Authors: Ilavsky J. , Long G.G. , Allen A.J. , Berndt C.C. , Herman H. 
Published: May 2021

Abstract
The microstructures of as-sprayed and thermally-cycled freestanding and on-substrate deposits of yttria-stabilized zirconia were studied using small-angle neutron scattering (SANS). The SANS analysis allows the interlamellar pores and the intralamellar cracks, which are the two dominant void systems in the microstructure, to be characterized separately. Whereas up to 20% of the void surface area in the as-sprayed deposits was found to be in the cracks, the thermally-cycled deposits contained only a negligible quantity of cracks. At the same time, changes in the pore surface areas between the lamellae (i.e., the interlamellar pores) were much smaller. As a result, the microstructure of the thermally-cycled deposits was much more anisotropic than the microstructure of the as-sprayed deposits. Varying the cooling and the heating rates did not significantly change the microstructure but varying the total time that the deposits were at high temperature did affect the evolution of the surface area. The presence or absence of a bond coat and substrate also did not measurably influence the results.
Fatigue Behavior and Deformation of Aluminum and Steel HVOF Sprayed with WC-Co Coatings
Authors: Ibrahim A. , Berndt C.C. 
Published: May 2021

Abstract
The effect of WC-Co coating on the high cycle fatigue (HCF) behavior of SAE 12L14 steel and 2024-T4 aluminum was investigated. The fatigue tests were performed at room temperature and 370°C. The fatigue life distributions of specimens in the polished, grit blasted, peened, and coated conditions are presented as a function of the probability of failure. HVOF sprayed WC-Co coating has influenced the fatigue life of aluminum and steel. Factors contributing to this influence, which include grit blasting, elastic modulus, and residual stress, are discussed. A three-dimensional finite-element model (FEM) of the coated specimen was used to calculate the stress distribution across the coating and the substrate. The results of the analytical model are in good agreement with fatigue lives observed experimentally.
Damage in Thermal-Sprayed WC-Co Coatings by Repeated Load
Authors: Tajiri T. , Sakoda N. , Yamamoto S. , Watanabe S. 
Published: May 2021

Abstract
Two types of WC-12wt%Co powders, each manufactured by a different process, were thermally sprayed on a medium carbon steel by HVOF, and repeated load tests (rolling contact fatigue test and high cycles fatigue test) were carried out. The surface damages for the two types of coatings were investigated. It has been clear that the coating damages depend on the types of powders. It has been found that in rolling contact fatigue, there are the coatings, in which damage is characterized by delamination, and by a mixture of delamination and cracks. And it has also been found that in high cycles fatigue, there are the coatings, in which damage is characterized by net-like fatigue cracks, and by linear fatigue cracks.
In-Situ Measurements of Residual Stress within Coatings Plasma-Sprayed Under Industrial Conditions
Authors: Bianchi L. , Blein F. , Baradel N. , Jeandin M. 
Published: May 2021

Abstract
In order to determine residual stresses in industrial plasmasprayed coatings, a rather simple apparatus, which monitors the curvature of a beam substrate during the deposition process, has been developed. The experimental set-up consists of a water-cooled rotating cylinder, holding an initially plane substrate, whose curvature is continuously measured using a contacting displacement sensor disposed into the cylinder. The combination of the plasma gun translation and the cylinder rotation allows to reach industrial spraying velocities. Liquid argon cryogenic system is used to control the substrate temperature from about 50°C to more than 300°C independently from the process velocity. A typical recording is analyzed thoroughly and a theoretical approach to residual stress calculation discussed. This method is applied to partially stabilized zirconia coatings performed onto stainless steel substrates for spraying temperatures between 80°C and 210°C.
Analysis of the Influence of Traditional Economic Management Thoughts on Contemporary Economic Management
Authors: Meng Lingyan 
Published: May 2021

In today’s business environment, due to the complexity of organizational phenomena, the quick repair methods used in traditional economic management control will have adverse effects and more serious problems. The focus of this article is to integrate traditional economic management thoughts related to economic and social management to improve contemporary economic management, and to demonstrate the potential contribution of socio-economic management methods to guiding overall sustainable performance.
Faktor yang Mempengaruhi Perilaku Karyawan terhadap Penerapan SMK3 di PT. Angkasa Pura I (Persero) Bandara Internasional Sultan Hasanuddin Makassar
Authors: Afri Senjani Lucky , Rahman  , Ella Andayanie  
Published: May 2021

Sistem Manajemen Keselamatan dan Kesehatan Kerja (SMK3) merupakan bagian dari sistem manajemen secara keseluruhan yang dibutuhkan dalam rangka pengendalian resiko yang berkaitan dengan kegiatan kerja guna tercapainya tempat kerja yang aman, efisien dan produktif. Tingkat penerapan SMK3 pada tahun 2019 adalah 92,16%. Tujuan penelitian ini adalah mengetahui faktor yang mempengaruhi perilaku karyawan terhadap penerapan SMK3 di PT. Angkasa Pura I (Persero) Bandara Internasional Sultan Hasanuddin Makassar. Metode penelitian yang digunakan penelitian kuantitatif dengan pendekatan cross sectional. Populasi dalam penelitian ini adalah karyawan bagian airport operation dan airport technic sebanyak 60 orang, jumlah sampel sebesar 60 diambil menggunakan teknik total sampling. Data diperoleh menggunakan kuesioner. Analisis data menggunakan uji regresi dengan α=0,05. Hasil penelitian menunjukkan ada pengaruh pengetahuan (Sig=0,024), lingkungan kerja (Sig=0,14) dan kebijakan K3 (Sig=0.48) terhadap penerapan SMK3. Ada pengaruh pengetahuan, lingkungan kerja dan kebijakan K3 terhadap penerapan SMK3 di PT. Angkasa Pura I (Persero) Bandara Internasional Sultan Hasanuddin Makassar.
Hubungan Pola Konsumsi dengan Aktivitas Fisik pada Wanita Usia Subur di Kabupaten Bulukumba
Authors: Yuliana  , Sumiaty  , Septiyanti  , Sitti Patimah  , Andi Surahman Batara  
Published: May 2021

Dalam melakukan aktivitas fisik, otot membutuhkan energi diluar metabolisme untuk bergerak. Tubuh manusia mendapatkan energi dari hasil pembakaran karbohidrat, protein, dan lemak. Namun, apabila terjadi ketidakseimbangan energi, maka akan menimbulkan masalah kesehatan. Penelitian ini bertujuan untuk mengetahui hubungan pola konsumsi dengan aktivitas fisik pada wanita usia subur di Kabupaten Bulukumba. Jenis penelitian ini menggunakan observasional analitik dengan pendekatan Cross Sectional Study. Populasi dalam penelitian ialah wanita usia subur (WUS) yang ada di RT 002, Kelurahan Caile, Kabupaten Bulukumba. Teknik pengambilan sampel yaitu menggunakan purposive sampling dengan jumlah sampel sebanyak 109 orang berusia 15-49 tahun yang dipilih sesuai kriteria inklusif dan ekslusif. Metode analisis data menggunakan analisis univariat dan bivariat (uji chi square). Dari hasil penelitian diperoleh bahwa responden sering mengonsumsi sumber karbohidrat (76,1%), protein (77,0%), dan lemak (78,0%). Sedangkan, fastfood (83,1%) jarang dikonsumsi oleh responden dengan tingkat aktivitas fisik yang rendah (78,0%). Sementara itu, hasil analisis bivariat tidak menunjukkan hubungan yang signifikan antara pola konsumsi sumber karbohidrat (p=1,000>0,05), protein (p=0,843>0,05), dan lemak (p=0,976>0,05) dengan aktivitas fisik pada WUS di Kabupaten Bulukumba. Namun, terdapat hubungan antara pola konsusmsi fastfood (0,020<0,05) dengan aktivitas fisik pada WUS di Kabupaten Bulukumba. Berdasarkan hasil tersebut, disimpulkan bahwa tingkat keseringan seseorang dalam mengonsumsi karbohidrat, protein, dan lemak tidak mampu membuktikan adanya hubungan yang signifikan dengan aktivitas fisik pada WUS di Kabupaten Bulukumba. Meskipun begitu, disarankan agar sekiranya WUS tetap memperhatikan pola hidup dengan menjaga keseimbangan antara makanan yang dikonsumsi dan aktivitas fisik seperti berolahraga agar mampu mencegah terjadinya penyakit degeneratif.
Exploratory Study on Internalization of Character Values through Educational Profession Course
Authors: Mesterjon Mesterjon , Suwarni Suwarni , Selviani Diah 
Published: May 2021

This study was based on the findings during teaching and learning process at FKIP Universitas Dehasen Bengkulu (the Faculty of Educational Science and Teacher Training of Dehasen University of Bengkulu). There was a phenomenon of declining of good character value and morality. This is because of the misused of advancing technology by students that brings negative impact on the students' character and morality. This phenomenon was especially found among new students of FKIP (Faculty of Educational Science and Teacher Training) on their early stage of study. At the meeting of Educational Profession (Profesi Pendidikan) course, we did early observation by making contract with the new student.. They generally still brought their local character and moralor their old behavior. This could be seen, for example, they talked to their lecturers and seniors impolitely or often used their local language. Everyone's patience was needed in dealing withthis phenomenon. As the lectures progressed, especially Educational Profession course, we tried to internalize character values toward the students. This had positive impact for them. Today, they are found to be more polite, for example, they greet their lecturers and seniors when they meet them. This study dealt with character values such as: religious, discipline, honest, hard work, responsible, love peace, appreciate achievements, and friendly or communicative. This Exploratory study which was done to internalize character value of the students, has positive impact, this can be seen fromthepositive progress of students' character. Students who already have good character will keep learning to have better personality. This wil affect their future job, especially if they become teachers.
Improving Students’ Toefl Listening Skill through Task-Based Learning Approach
Authors: Juliana Juliana 
Published: May 2021

Toefl is urgently needed as an administrative requirement to work and participate in the scholarship competition. Students are required to master skills of this test. However, based on the results of pre-observations conducted in Information System class of Potensi Utama University, it is known that the average Toefl scores of students in Reading (37.8%), structure (32.7%), and Listening (29.5%). This phenomenon occurs because Toefl learning emphasizes a lot of activities on reading and structure skills so students do not get listening tasks with good quality and quantity. Therefore, the effective learning approach is needed to make Toefl learning process more effective in improving the listening skill of students. The result showed that there was an Improving of students’ listening skill from the test results of before observation with the highest conversion score of students’ Toefl listening is 43. Meanwhile, after being given action and application of task-based learning approach there was a change that the highest score of students’ Toefl listening in cycle I is 54 and the highest score of students’ Toefl listening in cycle II is 62. Therefore, it can be concluded that using the task-based learning approach has significantly improved students' Toefl listening skill.
How Perception use of e-Filling Technology Enhance Knowledge of Indonesian Disability Taxpayers and Impact Tax Compliance
Authors: Hendayana Yana , Mulyadi Harry , Reyta Fitriani , Halim Radhi Abdul 
Published: May 2021

Taxes are a source of state revenue used to finance government spending and development. One of the taxes that the government imposes on its people is income tax including income from dissability. Referring to the large number of persons with disabilities in Indonesia, indeed there should be no difference in the treatment of the fulfillment of rights between normal people and disabilities. Philosophically and constitutionally, based on Pancasila and the 1945 Constitution, every citizen has a chance which is equally good in terms of work, accessing public facilities, get a decent life and livelihood, and so on. This is emphasized for the fulfillment of the rights of disabilities. Innovation of online accessibility for public services is one solution for disabilities taxpayers in Indonesia. SPT reporting via djponline one of them. The presence of efilling intended for makes disability taxpayers easier to participate in carrying out their tax obligations as citizens, but there is contrast in the field often taxpayers with special needs have not felt much benefit from the existence of this technology, for this reason the researcher decides to examine whether e-filling can affect the increase in taxpayer knowledge among disabilities, 85 samples taken from disabilities SMes in Bandung West Java, The data is processed using the partial least square method and using a quantitative approach, result shown as much as 58.47% the existence of e-Filling enchance the tax knowledge of persons with disabilities and non significance impact the tax compliance, they argue that all it needs is advanced technology on a disability-friendly website..
The Effect of Training on Work Performance and Career Development: The Role of Motivation as Intervening Variable
Authors: Niati Dewi Rama , Siregar Zulkifli Musannip Efendi , Prayoga Yudi 
Published: May 2021

This study aims to determine the effect of training on work performance and career development by mediating work motivation. Respondents in this study were employees of PT. Asam Jawa in South Labuhanbatu Regency, amounting to 135 employees. Collecting data in this study using a questionnaire. The process of distributing questionnaires was carried out via online (Google form). The collected data is processed using path analysis using Amos Software Version 23. The results showed that training and motivation can improve job performance. Training, motivation, and job performance can improve career development of employees at work. It is recommended to improve training program, motivation and work performance of employess. For further research, we suggest to increase the population and variables in order to get better results.