bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kajian Agronomi Potensi Pengembangan Tanaman Sorgum Varietas Numbu di Kabupaten Ende
Authors: Murdaningsih Murdaningsih , Uran Adrianus F G 
Published: September 2021

Sorghum is a cereal crop that has the potential to be developed on dry land as a food source, has the ability to adapt widely, and requires less agricultural inputs than other food crops. Ende Regency is an area that has a dry climate and is dominated by dry land agriculture, so it has the potential for the development of sorghum plants. The purpose of this study was to conduct an agronomic study of the development of Nambu sorghum variety with the application of chicken manure. The research was conducted using a randomized block design, with 5 treatments chicken manure doses, i.e. A0: 0 tons per ha (control), A1: 3.25 tons per ha, A2: 6.5 tons per ha, A3: 9.75 tons per ha, and A4: 13 tons per ha. The application of chicken manure of 13 tons per ha to sorghum plants resulted in growth and yield variables with the highest values, i.e., plant height 277.08 cm, leaf number 15.69 pieces, leaf area 8720.03 cm2, fresh stover weight base 354.69 g, dry stover weight 249.38 g, panicle length 20.54 g, panicle dry weight 24.63 g, number of seeds per panicle 1392.19 g, 1000 seeds weight 7.50 g.
Keywords: Chicken manure, dry land, food, sorghum.

ABSTRAK
Sorgum merupakan tanaman serealia yang berpotensi untuk dikembangkan pada lahan kering sebagai sumber pangan, memiliki kemampuan beradaptasi secara luas, serta membutuhkan input pertanian relatif lebih sedikit dibandingkan tanaman pangan lainnya. Kabupaten Ende merupakan daerah yang beriklim kering dan dengan dominasi pertanian lahan kering, sehingga berpotensi untuk pengembangan tanaman sorgum. Tujuan penelitian ini adalah untuk melakukan kajian agronomis pengembangan tanaman sorgum varietas Nambu dengan aplikasi pupuk kandang ayam. Penelitan dilakukan dengan percobaan menggunakan rancangan acak kelompok, dengan 5 perlakuan penggunaan pupuk kandang ayam, yakni A0: 0 ton per ha (kontrol), A1: 3,25 ton per ha, A2: 6,5 ton per ha, A3: 9,75 ton per ha, dan A4: 13 ton per ha. Aplikasi pupuk kandang ayam sebesar 13 ton per ha terhadap tanaman sorgum menghasilkan variabel-variabel pertumbuhan dan hasil dengan nilai-nilai tertinggi, yaitu tinggi tanaman 277,08 cm, jumlah daun 15,69 helai, luas daun 8720,03 cm2, bobot brangkasan basah 354,69 g, bobot brangkasan kering 249,38 g, panjang malai 20,54 g, bobot malai kering 24,63 g, jumlah biji per malai 1392,19 g, bobot 1000 biji 7,50 g.
Kata Kunci: Lahan kering, pangan, pupuk kandang ayam, sorgum.
Scientometric indicators and features of evaluating the scholars’ scientific activity effectiveness using citation indices (review of domestic and foreign studies)
Authors: Spasennikov Valeriy , Androsov Kiril 
Published: September 2021

Topical problems of domestic and foreign science studies associated with the contradictions in evaluating the contribution of domestic scientists to the world science are considered. The erroneousness of the approaches caused by the priority evaluation of the scientific activity effectiveness of Russian scientists based on using international scientometric ratings and databases is shown. The main tools of traditional scientometrics are presented, methodological approaches to determining the researchers’ ratings based on scientometric indicators are shown. Various options for modifying the calculations of the Hirsch index values for different numbers of publications are described.
It is shown that, on the basis of the considered indices, it becomes possible to evaluate a scientist’s publication activity by three ratings, namely: rating of significant works; rating of work intensity; a complex rating, including both ones. When establishing a rating, it is advisable to give preference to the index of basic publications.
As a result of a comparative analysis of domestic and foreign studies, it is revealed that scientometrics is a real tool for analyzing and evaluating scientists’ activities, scientific organizations and educational institutions.
Ethnomathematics Exploration of The Masjid Raya Bandung Ornaments in Transformation Geometry Materials
Authors: Purniati Tia , Turmudi Turmudi , Juandi Dadang , Suhaedi Didi 
Published: September 2021

The mosque is the result of acculturation between Islamic culture and local culture. Many mosque ornaments use geometric motifs. This research is an ethnomathematics study that aims to explore the ethnomathematics aspects of mosque ornament, especially the material of geometric transformation Ethnomathematics research is part of qualitative research, so this research uses qualitative research. The purpose of ethnomathematics research is to study the mathematical ideas contained in a culture, so the method used is ethnographic. The research location is Masjid Raya Bandung which was selected by purposive sampling. The researcher acts as an instrument that collects data through observation, documentation, and literature review. The research data were analyzed through data condensation, data display, and concluding. The results showed that there are ethnomathematics aspects of Masjid Raya Bandung ornaments in the material of transformation geometry, namely translation, reflection, rotation, and dilation. The mosque ornaments can be used as an alternative source of learning in mathematics learning, especially transformation geometry material.
Keywords: ethnomathematics, transformation geometry, mosque ornament.
Seamless Induction Hardening of a 42CrMo4 Slewing Bearing
Authors: Scarpellini L. , Cesano M. , Ciscato D. , Pillin B. 
Published: September 2021

Abstract
Large slewing bearings are employed in wind turbines and other energy industry applications where they are subjected to harsh working conditions. In order to bear heavy dynamic loads, slewing ring tracks can be surface hardened by induction heating with a seamless process which allows for a uniform heat treatment without soft zones. In comparison with the traditional furnace carburizing, seamless induction hardening is faster, consumes less energy, and has been developed to achieve the same results utilizing medium carbon steel. The presence of a pre-heating coil, with an independent power source, allows for the adjustment of the heat input rate in order to tune the heating process according to the steel characteristics. The pre-heating operation allows for case depths up to 10 mm to be reached without a reduction in scanning speed or productivity. A mechanical tracking system adjusts the coils to compensate for ring deformation and thus assure a uniform heating pattern. Surface hardness tests and metallography have been performed in different process stages to verify the process consistency. A fine grain microstructure in the end zone has been obtained thanks to the pre-heating coil, which avoids surface overheating.
Optimization of the Heating Phase for the Bi-frequency Heat Treat Process of a Gear
Authors: Elamin Mohammad , Lombard Patrick , Rodriguez Alejandro , Wendling Philippe 
Published: September 2021

Abstract
In this contribution, we attempt to optimize the heat process of a gear. The goal is to evaluate the best use of two frequencies to complete the heating phase in the least amount of time achieving a uniform distribution of temperature in the treated area of the gear. Assuming the application of the appropriate cooling, this temperature distribution will lead to the appropriate hardness along and between the teeth of the gear. A 3D model of part of the gear wheel is modelled in a multiphysics magneto-thermal analysis. The two frequencies used for the heating are first evaluated. In the optimization process, the duration of the application for each frequency is a parameter. Temperatures are evaluated through the heating process at selected locations as constraints of the optimization process.
Pearlite Spheroidization and Its Relationship with Tensile Strength in Hypoeutectoid Steels
Authors: López-Cornejo Monserrat Sofía , Vergara-Hernández Héctor Javier , Garnica-González Pedro , Vázquez-Gómez Octavio , Arreola-Villa Sixtos Antonio 
Published: September 2021

Abstract
A hypoeutectoid steel was austenitized at 840 °C for one hour and cooled at two rates. Examination by optical and scanning electron microscopy showed a change in the pearlite microstructure. Cooling in air as compared to furnace cooling reduced the pearlite interlamellar spacing and increased the hardness. The slower cooling resulted in a lower tensile strength, higher tensile elongation, and different fracture appearance.
Production and Characterization of Boride and Carbide Layers on AISI 15B30 Steel
Authors: Triani Rafael Magalhães , De Assis Gomes Lucas Fuscaldi , Casteletti Luiz Carlos , Neto Amadeu Lombardi , Totten George Edward 
Published: September 2021

Abstract
This work investigates the effect of boriding and thermo-reactive deposition on 15B30 steel. The results presented in the paper show that these thermochemical treatments produce boride and carbide rich layers that improve surface hardness and wear resistance, and they do so without the adverse effects of adding more boron to the alloy.
Improvement in Quenching Uniformity through Flow Conditioning
Authors: Flynn Brian P. , Mouilleseaux Michael L. , Banka Andrew L. 
Published: September 2021

Abstract
A number of modifications were made to a batch quenching process for pinion gears to reduce the amount of size change in the ID. This paper assesses the impact of adding vertical plates to the load elevator to better condition oil flow to the stacked part baskets. Data collected from pinion gears before and after the modification show a reduction in the average and range of ID bore change, indicating an improvement in quench uniformity. CFD analyses suggest that improvement is due to a significant reduction in turbulence, resulting from the addition of the vertical plates. As the authors explain, high levels of turbulence promote collapse of the vapor film that occurs at the start of the quench process, and disparity in the timing causes unwanted variation in part size change throughout the load.
Distortion Minimization of Bevel Gear Press Quench Hardening Process Using Computer Modeling
Authors: Li Zhichao , Ferguson B. Lynn , Sims Justin 
Published: September 2021

Abstract
Press quenching is often used to harden parts that are sensitive to distortion, but it is a difficult process to control due to the effects of tooling and the relatively large number of process parameters. In this paper, the authors show how they use finite element analysis to optimize the process and tooling design for a spiral bevel gear made of carburized 9310 steel. Several designs adaptations are assessed, one of which is shown to minimize radial shrinkage and taper distortion in the inner diameter of the bore.
The Students’ Strategies in Online Learning Interaction: Exploring Politeness in Google Classroom during Covid-19 Pandemic
Authors: Sembiring Elita Modesta Br. , Sianturi Srisofian , Simanjuntak Faido Marudut Pardamean , Tarigan Sri Ninta 
Published: September 2021

Teacher-student politeness has been well-explored over the years, but mostly in direct or face-to-face communication. This study aims to fill the gap of politeness between students and educators in online learning, specifically in the sessions of one of the staple and most used educational platforms during the Covid-19 pandemic, namely Google Classroom. This study applies qualitative research method by describing the phenomenon of the language. This study observed the interaction of 36 English Literature Department students during their Google Classroom sessions from April to July 2021. The researchers analysed the students’ interaction with their lecturer according to Brown and Levinson’s politeness theory. Five politeness strategies were identified, namely the positive politeness strategies (i.e., greeting, gratitude and address term), negative politeness (i.e., apology) and vernacular language. The gratitude and address term expression conveyed by “Thank you, Mam” is dominantly used by students to minimize threat when giving comments for every instruction created by lecturer. Results of this study showed that the students use politeness strategies to ensure the effectiveness of online learning, yet they also limit their text-based interaction with the short expressions of politeness such as “Hi, mam” or “Yes, mam”. This finding contributes to shedding light on the aspect of politeness in online interaction in Google Classroom and directs future studies to explore politeness in other contexts.
Tergerusnya Gotong Royong di Desa Tadang Palie Kecamatan Ulaweng Kabupaten Bone
Authors: Bagas Bagas , Radjab Mansyur 
Published: September 2021

Gotong royong merupakan kegiatan sosial kemasyarakatan yang berorientasi pada tindakan untuk saling meringankan beban pekerjaan. Dewasa ini, nilai gotong royong kian mengalami peluruhan yang drastis setelah masuknya modernisasi pertanian dan monetisasi di pedesaan. Penelitian ini bertujuan untuk mendeskripsikan proses tergerusnya gotong royong di Desa Tadang Palie Kecamatan Ulaweng Kabupaten Bone. Penelitian ini menggunakan purposive sampling dengan informan: Kepala Urusan Umum, Ketua Rukun Tetangga, Ketua Rukun Warga, Ketua Kelompok Tani, Petani, Ibu Rumah Tangga, dan Mahasiswa. Tipe penelitian yang digunakan yaitu tipe penelitian deskriptif dan dasar penelitian studi kasus. Hasil penelitian menunjukkan bahwa; gotong royong di Desa Tadang Palie telah tergerus terutama penanaman jagung. Hal itu disebabkan antara adanya ketidakseimbangan luas lahan jagung masyarakat yang semakin bertambah dengan sumber daya manusia yang semakin sedikit. Mayoritas masyarakat membabat kebun kakaonya untuk ditanami jagung, begitupula masyarakat banyak yang bekerja sebagai Tenaga Kerja Indonesia (TKI) dan bermigrasi bercocok tanam, sebagai solusi masyarakat menggunakan tenaga buruh dari desa lain. Adapun kegiatan masyarakat lainnya yang membutuhkan tenaga orang lain, maka masyarakat masih antusias dalam bergotong royong. Realitasnya di masyarakat, meskipun arus perubahan tidak bisa dibendung, namun nilai-nilai yang selama ini menjadi salah satu patokan dalam bermasyarakat masih tetap terinternalisasi dalam kehidupan sehari-hari. Hal tersebut dapat ditemukan dalam berbagai kegiatan-kegiatan yang ada di Desa Tadang Palie.
POM-based metal–organic compounds: Assembly, structures and properties
Authors: Li Jian , Liu Zhe , Liu Yue-Yan , Liu Jie , Li Yuan-Yuan , Qiao Xiu-Ying , Huang Wen-Ming , Niu Yun-Yin 
Published: September 2021

Four POM-based inorganic-organic hybrid compounds, which are {[(Cu·L1’·H2O)·(α-Mo8O26)0.5]·H2O}n (1), {(Cu·L2’·H2O)·(α-Mo8O26)0.5}n (2), {[(Cu·L3’·H2O)·(β-Mo8O26)0.5]·5H2O}n (3), {(Cu·L4’·H2O)·(β-Mo8O26)}n (4)[L1’ = 1,5-bis (4-carboxylpyridine) pentane dibromide, L2’ = 1,7-bis (4-carboxylpyridine) heptane dibromide, L3’ = 1,2-bis [(4-carboxylpyridine) - N-methylene] benzene dibromide, L4’ = 1,4-bis [(4-carboxylpyridine) - N-methylene] benzene dibromide] have been successfully synthesized under hydrothermal conditions by tuning ligands. Compounds 1–4 were characterized by single crystal X-ray diffraction, infrared spectrum (IR), powder X-ray diffraction (PXRD), and thermogravimetric (TG). The transformation of ligands have a momentous effect on the [Mo8O26]4 - structures of this series. In addition, the adsorption and photocatalytic properties of organic dyes for compounds 1–4 have been investigated.
Aesthetic Rehabilitation of Anterior Incisor: Post and core treatment –A Case Report
Authors: Tomar Anil K , Mushtaq Hysum , Jain Shivangi , Tyagi Ayush , Sabharwal Geetika , Poonia Sachin 
Published: September 2021

This case report describes the post and core treatment of a maxillary central incisor. An 18-year-old female patient reported to the Department of Conservative Dentistry and Endodontics with the chief complaint of pain in upper front tooth region. On clinical examination, there was Ellis class III fracture resulting in loss of significant tooth structure necessitating post and core treatment. Treatment was initiated with removal of carious region, canal was located, working length was established followed by chemo mechanical preparation and obturation. Post space preparation was done in the canal followed by post cementation and core build up.
Keywords: Post, core, ceramic, crown lengthening.
Correlation of Lead Exposure on Calcium Metabolism, Vitamin D3 in Battery Manufacturing Workers
Authors: Malik Kiran , Rathore Savita , Chandel Mahakal 
Published: September 2021

Background: Chronic lead exposure from the lead-acid–battery manufacturing process has been linked to a variety of health effects, including dental health, cardiovascular disease risk, Matrix–gamma– carboxy glutamic acid protein (MGP) polymorphism, oxidative stress, immunological, genotoxicity, reproductive, neuropsychological, and pteridine metabolism with neurotransmitters synthesized.
Aim of the Work: effects of lead exposure on calcium metabolism in battery workers.
Subjects and Methods: The present study will be conducted in Department of Biochemistry, Index Medical College and research center, Indore. A total of 100 lead exposed battery workers and 100 aged (20-60 yr) matched non lead exposed controls. Blood sample was withdrawn from the anticubital vein and centrifuged to obtain serum after that serum was quantitatively analyzed for lead level, calcium, phosphorous and vitamin D3.
Result and Conclusion: In lead-exposed battery workers, correlation analysis revealed a strong negative connection between blood lead levels and serum vitamin D levels. Similarly, serum calcium levels were found to be inversely linked with blood lead levels.
Keywords: Battery workers, Lead
Narrativas de professores iniciantes sobre seus processos de inserção profissional docente
Authors: Coutinho Neves Americano Rego Flaviane , Amaral da Fontoura Helena 
Published: September 2021

Este artigo objetiva socializar achados de uma pesquisa de Mestrado em Educação realizada a partir da colaboração de três professores iniciantes ao narrarem suas experiências de inserção profissional. O conceito de experiência, com base nas contribuições de Josso, tem como cerne a transformação do sujeito mediante tomada de decisão a partir da reflexividade. Apostamos nas narrativas por constituírem uma relação afetiva com a formação, ao narrar suas histórias, os participantes deixaram emergir o que os constituiu professores, possibilitando repensar suas trajetórias de vida e de formação, refletir sobre práticas em um movimento de transformação. A tematização de Fontoura foi a estratégia utilizada para análise das narrativas. As principais contribuições do estudo foram refletir e compreender processos de formação de professores iniciantes, a construção da identidade profissional docente e a aparição do ser-sujeito de formação em seus diversos registros, psicossomáticos, sociológicos, emocionais, culturais e políticos.
Palavras-chave: Inserção profissional docente; Professor iniciante; Narrativas; Formação de Professores.
Globalização, Estado, políticas públicas e exclusão digital: interrelacionando conceitos
Authors: Da Silva Figueiredo Chermont Nelceia Margareth , Machado Fiuza Fialho Lia 
Published: September 2021

O texto trata acerca da interface entre conceitos importantes, tais como globalização, Estado, políticas públicas e Tecnologias Digitais de Informação e Comunicação. O mote foi elaborar um ensaio como objetivo de discutir a interface entre a globalização e as TDIC, considerando as políticas públicas para sua universalização numa sociedade eminentemente capitalista. Fundamentado principalmente nos estudos de Bauman (2001; 2008), Souza (2003), Kenski (2007), Alves (2011) e Santana, Oliveira e Meira (2013). Discute-se que as TDIC fomentaram a globalização e a ampliação do sistema capitalista. Todavia, não reverberou em maior igualdade e justiça social, na contramão, o Estado não consegue assegurar a inclusão digital e, na lógica da acumulação do capital, parte considerável da população brasileira permanece sem conhecimento para fazer uso dos artefatos digitais e recursos para a sua aquisição ou acesso. Esse quadro de exclusão foi asseverado em tempos de pandemia causada pela Covid-19.
Palavras-chave: Estado democrático; Desigualdade social; Inclusão digital.
Комплексна методика дослідження та формування складових воєнно-економічного потенціалу держави
Authors: Tkach Mykola 
Published: September 2021

Стаття є цікавою для фахівців в економічній сфері, які займаються дослідженням проблем розвитку економічного та воєнно-економічного потенціалу держави. Метою статті є розвиток існуючих підходів щодо дослідження та формування складових воєнно-економічного потенціалу держави. Поставлене наукове завдання вирішувалося шляхом аналізу існуючих підходів щодо дослідження та оцінювання воєнно-економічного потенціалу, підходів щодо оцінювання людського капіталу та технологічного розвитку економіки держави, як ключових складових воєнно-економічного потенціалу, їхнього розвитку та розробкою методології оцінювання технологічного розвитку економіки держави.
В процесі досягнення мети дослідження використані наступні методи наукового пізнання: історичної аналогії, аналізу, синтезу, індукції, дедукції, системного підходу.
В ході проведеного дослідження здійснено: удосконалено комплексну методику дослідження воєнно-економічного потенціалу держави; удосконалено методику розрахунку індексу людського капіталу держави; розроблено методологію оцінювання технологічного розвитку економіки держави з урахуванням технологічного розвитку оборонно-промислового комплексу.