bluuebunny/crossref_metadata_2025_split huggingface dataset:
Entre a mão que escreve e o os olhos que leem: laços familiares e de amizade em escritas epistolares (1903 – 1912/RS)
Authors: Almeida Dóris Bittencourt , Jacques Alice Rigoni 
Published: August 2022

A pesquisa situa-se no campo da História da Cultura Escrita, nas interfaces com estudos de acervos pessoais e correspondências epistolares. Investigaram-se cartas enviadas para Abraão Silverston, entre 1903 e 1912, que por ele foram guardadas. Metodologicamente, reuniram-se os documentos, agrupando, de um lado, aqueles que envolvem diretamente os laços familiares, e, em outra perspectiva, examinaram-se as epístolas escritas por seu amigo Franz. A análise contemplou essas categorias: materialidades, protocolos, redes de sociabilidades, produção de sensibilidades, relações de afeição, questões econômicas e culturais pertinentes à sociedade em que se inseriam. No que se refere às correspondências familiares, pode-se dizer que promoveram a expressão de subjetividades movidas por sentimentos de bem-querer que uniam remetentes e signatário. As cartas de Franz também evidenciam a estima que ambos construíram desde a infância, em meio à abordagem de assuntos cotidianos, pelos olhares juvenis do escrevente. Entende-se que esses manuscritos, datados do início do século XX, importavam a seu receptor, que estava longe de suas referências por residir em Porto Alegre. Assim, as epístolas foram merecedoras de cuidado por Abrahão, pois representavam vínculos afetivos, entrelaçados por familiares e amigo, permitindo que ele se mantivesse perto de sua comunidade de origem, apesar da distância.
Marcas e palavras de estudantes universitárias do Século XX em San Luis Potosí, México
Authors: Vega Martínez Blanca Susana 
Published: August 2022

Este artigo deriva de uma pesquisa em andamento que tem como objetivo recuperar a memória institucional de estudantes universitárias e professoras que ingressaram no ensino superior no século XX. O texto está organizado em duas fases, a primeira apresenta os registros das primeiras alunas da Universidade de San Luis Potosí, em suas várias carreiras; através de fontes documentais, conseguimos apresentar seus nomes e profissões, todas da primeira metade do século XX. Em uma segunda fase, através da história oral, apresentamos os relatos de duas mulheres que estudaram na Universidade, durante a segunda metade do século XX, uma época importante para o acesso das mulheres ao ensino superior. Ambas falam de suas experiências e trajetórias universitárias. Finalmente, nas reflexões, destacamos a importância de resgatar a memória daquelas mulheres que criaram espaços, mas que também foram formadoras de novas mulheres profissionais e, ao mesmo tempo, romperam os estereótipos marcados por uma sociedade que sustentava que a natureza das mulheres estava destinada ao cuidado das crianças e do lar.
La maestra rural y el saber pedagógico, construcción social desde un enfoque biográfico-narrativo
Authors: Buitrago Rincón Libia Consuelo , Argüello Parra Andrés , Costa Conceição Leal da 
Published: August 2022

El presente artículo es resultado de una investigación basada en las características sociales, culturales y personales que hacen parten del saber pedagógico rural en el periodo comprendido entre 1975 y 2015 a partir de la historia de vida de una maestra colombiana, destacada en su misión educativa y comunitaria en Boyacá-Colombia. La finalidad del estudio es comprender el significado de las dimensiones de la trayectoria biográfica, configurando el aporte pedagógico y social desde una investigación de tipo cualitativo, con enfoque hermenéutico, fundado en el enfoque biográfico-narrativo, en el cual se evidenció el relato escritural e intelectual, complementado por la imagen representativa y simbólica a través de los dispositivos utilizados: la autobiografía y la fotobiografía, ésta última como elemento subsidiario constitutivo de la historia de vida. Dentro de los hallazgos se desarrolló la narrativa de cuatro categorías anticipatorias organizadas en las dimensiones subjetiva, social y experiencial. La discusión y las conclusiones se fundamentan en 28 categorías emergentes producto del diálogo entre la sujeto-mujer, los referentes teóricos y el análisis de los autores.
Autoformation d’un village à okinawa et changements de conscience collective: perspectives pour penser l’histoire de vie collective en formation
Authors: Suemoto Makoto 
Published: August 2022

Dans cet article, l’auteur essaie d’approcher un des thèmes de l’éducation asiatique: la formation de l’individu qui vit dans la collectivité. Il le fait en analysant des changements de conscience collective au sein d’un lieu vécu en commun par les habitants d’un petit village au nord de l’île principale d’Okinawa après la seconde guerre mondiale. Ce village nommé « Village H » dans le cadre de cette étude est connu notamment à cause du projet national de construction des bases US qui a rendu nécessaire de remblayer les côtes de l’océan. Cela a provoqué des mouvements de résistance chez les populations locales des préfectures d’Okinawa qui durent encore aujourd’hui. Cependant la visée de l’étude n’est pas de traiter ce problème sur un pan politique mais de l’examiner à partir d’une perspective socio-culturelle et éducative. Les changements radicaux survenus dans le village H ont en effet un sens éducatif s’ils sont pensés comme le résultat d’une évolution des mœurs et des consciences collectives des villageois. Du point de vue de transactions proposées par Gaston Pineau et Marie-Michèle (1983) dans l’ouvrage “Produire sa vie. Autoformation et autobiographique”, la conscience collective d’un village est pensée comme une vie humaine dont le parcours peut être appréhendée de la même manière que celle d’une personne.
Environmental education research and significance of experience: the depth of life history brought about by mutual relationships
Authors: Miki Yuko 
Published: August 2022

This paper describes the correlation between research and researcher and his/her own life story. How is the researcher’s own experience understood, meaningful, and rebuilt? This paper shows that studying the subject using the life story approach itself makes the biography of the researcher vivid. It points out that the interaction between researchers and subjects is dynamic and suggests that the life story approach may enrich the stage of research in the environmental education area.
ANALISIS BUTIR SOAL MATA KULIAH ALGORITMA PEMROGRAMAN
Authors: Lisa Yasinta 
Published: August 2022

ABSTRACTThis study aims to describe item analysis based on Bloom's taxonomy on the mid-semester test instrument for Programming Algorithms and Data Structures and its relation to student perceptions. The sample of the trial target is the Mid-Semester Test Question for the 2020/2021 Academic Year of the STKIP Persada Khatulistiwa Sintang Computer Education Study Program. The research method uses descriptive quantitative research. The results of the data analysis showed that, the results of the validity test stated that of the 30 questions (90%) there were 27 questions which were declared valid and 3 (10) questions invalid. Test the reliability of the test items obtained in the high category. The difficulty level of the questions ranges from 83.3% (Easy Questions), 10% (Medium Questions), and 6.7% (Difficult Questions). The Distinguishing Power of Questions in the moderate category and the Detractor Index have mostly functioned well. The distribution of cognitive levels is mostly at C1 (50%), C2 (23.3%), C3 (6.7%), C4 (10%), C5 (6.7%), and C6 (3.35) . This result is not proportional for the higher education level.Keywords: validity; reliability; level of difficulty; discriminatory power; cognitive level; item analysis.ABSTRAKPenelitian ini bertujuan untuk mendeskripsikan analisis butir soal berdasarkan taksonomi bloom pada instrumen tes tengah semester mata kuliah Algoritma Pemrograman dan Struktur Data dan kaitannya dengan persepsi mahasiswa. Sampel sasaran uji coba yaitu Soal Tes Tengah Semester Tahun Akademik 2020/2021 Prodi Pendidikan komputer STKIP Persada khatulistiwa sintang. Metode penelitian menggunakan penelitian deskriptif kuantitatif. Hasil analisis data menunjukkan bahwa, hasil uji coba validitas menyatakan bahwa dari 30 soal (90%) terdapat 27 soal yang dinyatakan valid dan 3 (10) soal tidak valid. Uji Reliabilitas soal tes diperoleh pada kategori tinggi. Tingkat Kesukaran Soal berkisar 83,3% (Soal Mudah), 10% (Soal Sedang), dan 6,7% (Soal Sukar). Daya Pembeda Soal pada kategori cukup dan Indeks Pengecoh sebagian besar telah berfungsi dengan baik. Sebaran tingkatan kognitif sebagian besar berada pada C1 (50%), C2 (23,3%), C3 (6,7%), C4 (10%), C5 (6,7%), dan C6 (3,35). Hasil ini belum proporsional untuk tingkatan Perguruan Tinggi. Kata Kunci: validitas; reliabilitas; tingkat kesukaran; daya pembeda; tingkatan kognitif; analisis butir soal.
APLIKASI PERAMALAN STOK BARANG RETAIL MENGGUNAKAN METODE TREND MOMENT PADA TOKO RIZKA
Authors: Amalia Rizka , Alkadri Syarifah Putri Agustini , Octariadi Barry Ceasar 
Published: August 2022

Toko Rizka adalah usaha yang bergerak di bidang retail (eceran) yang menjual produk kepada konsumen. Proses bisnisnya dilakukan secara konvensional dalam menentukan ketersediaan stok barang sehingga menyebabkan ketersediaan stok barang mengalami kelebihan dan kekurangan Penelitian ini bertujuan untuk menghasilkan prediksi stok barang agar meminimalkan kesalahan dalam pembelian barang sebagai acuan untuk pembelian barang bulan berikutnya.Pada aplikasi peramalan ini metode yang digunakan adalah metode Trend Moment. Metode Trend Moment adalah metode untuk mencari garis trend yang menggunakan cara-cara perhitungan statistika dan matematika tertentu guna mengetahui fungsi garis lurus sebagai pengganti garis patah-patah yang dibentuk oleh data historis perusahaan dengan demikian pengaruh unsur-unsur subyektif dapat dihindarkan.Peramalan stok barang dilakukan dengan pengujian tingkat kesalahan perhitungan menggunakan metode APE. Data yang digunakan merupakan data penjualan Toko Rizka dari bulan Januari 2019 sampai Juli 2020. Berdasarkan hasil analisis dan pengujian sistem, maka sistem ini dapat meramalkan stok barang. Hasil peramalan menggunakan metode Trend Moment pada Beras Cap Rambutan 10 Kg pada bulan Agustus 2021 adalah 14 ZAK, hasil kesalahan atau error dengan menggunakan metode APE (Absolut Percentage Error) peramalan pada peramalan Beras Cap Rambutan 10 Kg adalah 6,67% dan akurasi peramalan Beras Cap Rambutan 10 Kg yaitu 93,33%.
Evaluasi Taman Kelengkeng di Kota Palembang Berdasarkan Delapan Prinsip Ruang Bermain Ramah Anak
Authors: Sary Reny Kartika , Angrini Sisca Novia , Jaya Meldo Andi 
Published: August 2022

Taman Kelengkeng merupakan salah satu taman yang di bangun oleh Pemerintah Kota Palembang. Awal dari pembangunan fasilitas umum ini merupakan sebuah taman, namun dengan semakin masif nya pembangunan seperti perumahan, kantor, gudang dan showroom di sekitar lokasi taman ini, membuat lahan untuk bermain anak menjadi semakin sempit dan bisa di katakan sudah tidak ada lagi. Hal ini membuat taman Kelengkeng menjadi alternatif bagi warga setempat sebagai tempat untuk bermain anak. Sekarang taman tersebut “terpaksa” menambahkan fungsinya bukan hanya sebagai taman tetapi berfungsi juga sebagai tempat bemain anak dan juga menjadi tempat rekreasi keluarga. Setiap hari khususnya pada sore hari taman tersebut sangat ramai di kunjungi oleh warga sekitar lokasi, baik itu untuk membawa anak-anak bermain, berekreasi keluarga ataupun hanya duduk ngobrol dengan teman atau pasangan masing-masing. Dengan penambahan fungsi tersebut maka di perlukan evaluasi terhadap taman Kelengkeng ini, apakah sudah menjadi ruang ramah anak atau belum. Mengingat pengguna taman tersebut tujuh puluh persen lebih adalah anak-anak. Penelitian ini bertujuan mengevaluasi taman Kelengkeng Palembang apakah sudah memenuhi persyaratan menjadi ruang bermain ramah anak atau atau belum, sehingga dari penelitian ini akan keluar hasil atau rekomendasi perbaikan untuk taman tersebut menjadi taman yang berfungsi menjadi ruang bermain ramah anak. Adapun metode penelitian dilakukan dengan metode deskriptif kualitatif dimana pengamatan dilakukan langsung pada objek penelitian dengan pengambilan gambar atau dokumentasi langsung di lapangan. Pengukuran pada taman dilakukan untuk mengetahui luasan objek penelitian serta wawancara langsung dengan pengunjung taman. Metode ini dilakukan untuk mengetahui fasilitas yang tersedia pada taman Kelengkeng tersebut, jenis kegiatan dan permainan yang ada, elemen-elemen pembentuk taman, pedestrian atau trotoar yang dibuat disana dan jenis tanaman yang ada serta fasilitas penunjang lainnya.
Оцінка впливу експлуатаційних параметрів на роботу авіаційного газотурбінного двигуна
Authors: Morozova Iryna , Tereshchenko Yuriy , Yehunko Vasyl 
Published: August 2022

This paper considers the possibilities of improving the reliability and efficiency of the aircraft engine, which are one of the main indicators of quality and require high-quality fuel. Modern gas turbine engines (GTE) are much more powerful and economical compared with those produced 50 years ago. Nevertheless, manufacturers are constantly working to improve gas turbine engines with the main emphasis on their fuel efficiency. Mechanical impurities present in the fuel can clog the fuel filters, thereby cutting off the fuel supply. The presence of resins in the fuel leads to the formation of various deposits on engine parts, and the content of sulfur, acids and alkalis increases the corrosiveness of the fuel. The completeness of combustion and the tendency of carbon formation are the main performance characteristics of hydrocarbon fuels, which are of great practical importance in improving the efficiency and service life of the engine. Currently, there are many options for improving technical and economic indicators. The proposed ways to prepare a better fuel mixture before supplying it to the engine. The preparation of aviation fuel is carried out because of the electrophysical effects on the fuel. The electrophysical effect on the fuel is determined by a magnetic installation with a sign-changing magnetic field. Studies were conducted to determine the effect of electrophysical impact on the completeness of combustion of aviation fuel and carbon formation in the combustion chamber of a gas turbine engine. The method allows to give a comparative assessment of the completeness of combustion and carbon formation of fuels for engines with a small amount of fuel consumed for testing. It has been established that under electrophysical action on aviation fuel, the fuel combustion efficiency increases by 10...12 %, carbon formation in the gas turbine engine combustion chamber decreases by 20...25 %. The positive effect on the combustion process in the previous phases decreases the afterburning phase, therefore, a decrease in the temperature of the exhaust gases, a decrease in the concentration of nitrogen oxide by 12...16 %, carbon monoxide by 0.64...0.7 % and hydrocarbon by 25...35 %. After the electrophysical impact and the fuel running time, the content of resinous compounds increased four times, the content of oxygen compounds decreased by ~23 %, and the content of sulfur compounds decreased by ~25 %.
Діагностика паливної апаратури, приводу клапанів газорозподілу та форсунок змащення циліндрів сучасних двотактних двигунів
Authors: Varbanets Roman , Malchevskyi Valentyn , Minchev Dmytro , Zalozh Vitalii , Kyrnats Vladislav , Alexandrovskaya Nadezhda 
Published: August 2022

The application of a vibration sensor with an in-cylinder pressure sensor extends the capabilities of internal combustion engines and compressor diagnostics for various types of plants and installations, such as marine diesel engines, refrigeration piston compressors, aircraft engines. The fuel injection equipment malfunctions as valve as valve train system malfunctions could be detected from the experimental indicated diagrams P(V), P(deg) of the engine cylinder operating process as it is known. The main indicators are the following: the shape of the diagram and the parameters of working cycle – the maximum combustion pressure Pmax, the compression pressure Pcomp, mean indicated pressure IMEP, etc. However, it should be considered that different types of malfunctions could have the same reflection on the indicated diagram. For instance, the late fuel injection and the fuel-injection equipment wear could have almost similar effects on the indicated diagram and main diagnostic parameters. Another example is the low compression pressure Pcomp, which could be caused by the cylinder or compression rings wear and by the exhaust valves wrong timing or valve leakage. It should also be mentioned that many types of malfunctions at their early stages are very difficult to detect and clarify based solely on the indicated diagrams analysis. The detection of such malfunctions usually requires the direct measurements of the fuel injection pressure and injector’s needle lift diagrams with accurate valve timing measurements. However, mentioned measurements could be performed under laboratory conditions and are difficult to apply under engine operating conditions. The vibration sensor application could be a reasonable alternative to the direct measurements, as it allows the determination of the injector’s needle lift-off and landing timing, high-pressure fuel pump cut-off and discharge timing, the preheated heavy fuel circulation start/stop timing as well as gas-distribution valves opening and closing timing, the oscillation frequency, and amplitude from the refrigeration system piston compressor valve operation and the cylinder oil injector timing. The vibration sensor has a magnetic basement that allows its easy mounting on the engine parts. All this information could be directly measured during engines and compressor trials by the vibration sensor applied in the advanced diagnostic systems.
Особливості формування дифузійної зони з’єднання платина-титан
Authors: Sanin Anatoliy , Mamchur Igor , Dzhur Yevhen , Mamchur Stella , Nosova Tetjana 
Published: August 2022

This paper considers the possibility of obtaining a high-quality titanium-platinum compound. Difficulties in joining dissimilar metals lie in the fact that during their interaction, brittle intermetallic compounds are formed, which cause the destruction of the product during the operation. Hard-phase welding methods are used to control the thicknesses and dimensions of intermetallic inclusions. Vacuum diffusion welding was chosen as the technology. To determine the formation of phases in the diffuse zone, the phase diagram of Ti-Pt was analyzed. The possible types of interactions between the components were determined. It is determined that the formation of a welded joint occurs due to the formation and growth of a diffusion zone in platinum and titanium. During welding, the growth of intermetallic phases Ti3Pt, TiPt, TiPt3, as well as solid solution zones, is observed. Microsections were made, on which the microstructure of the platinum-titanium compound was studied and microhardness measurements were carried out. The total width of the transitional diffusion layer is determined. The studies carried out made it possible to establish the sequence of the phase components of the diffusion zone. The use of the DRON 1.5 diffractometer made it possible to identify the phases. X-ray diffraction maxima and calculation of line identification established the presence of intermetallic compounds and their mixtures with solid solutions. The following methods were used in the work: microstructural analysis, microhardness measurement, the determination of the phase composition. A special technique was used to obtain high-quality microsections. During long-term grinding in the diffusion zone, a degree is formed due to the different properties of titanium and platinum. The phase composition of the platinum-titanium compound and the extent of each zone were established. The experiments carried out indicate that pressure, temperature and exposure time affect the quality of the joint. By changing these welding parameters, it is possible to change the microstructure of the diffusion zone. To determine the mechanical properties, a tear test was performed. For this, special three-metal samples were made. Determination of the mechanical properties made it possible to establish by what parameters the platinum-titanium compound meets the requirements of operation.
Експериментальне дослідження впливу параметрів газодинамічного напилювання на коефіцієнт використання порошку
Authors: Shorinov Oleksandr , Dolmatov Anatoliy , Polyvianyi Serhii 
Published: August 2022

The effect of temperature and air pressure at the supersonic nozzle inlet, as well as the distance from the nozzle outlet to the surface of the substrate (stand-of-distance) on the powder usage rate of nickel-based powder in low pressure cold gas-dynamic spraying (inlet pressure up to 1.0 MPa) was analyzed. One of the most important parameters characterizing the deposition efficiency of the spraying process is the powder usage rate. This parameter is the ratio of the mass of the coating to the mass of the powder used to obtain this one. For the process of cold gas-dynamic spraying, implemented on the equipment using air pressure up to 1.0 MPa, the main disadvantage is the relatively low-powder usage rate. To increase it (but not limited to it), a ceramic component, such as alumina Al2O3, is added to pure metal powders. In this study a nickel-based powder mixture, in which the content of Al2O3 powder is about 10% mass., was used. Titanium alloy plates BT9 were used as the substrate material. Based on the multifactor planning of the experiment, the effect of the complex parameters of the low-pressure cold gas-dynamic spraying on the powder usage rate was studied. After the coating deposition according to the matrix of the experiment, the samples with coatings were weighed. According to the known mass of the samples before spraying and the increase in their mass, the powder usage rate was calculated. From the analysis of the obtained statistical data, the dependence of the effect of the complex parameters of the deposition process on the powder usage rate was developed. The maximum value of the powder usage rate were obtained up to 35 %. It was confirmed that the air temperature at the nozzle inlet has the greatest effect on the above-mentioned parameter. The explanation of this is the increase in gas flow temperature and velocity, and as a result, the increase in the velocity and temperature of the powder particles in this flow. Higher values of the velocity and temperature of the particles lead to more intense plastic deformation of particles during impact with the substrate and their adhesion to it.
Arte y política en el sostenimiento de los regímenes escópicos
Authors: Contreras Medina Fernando Ramón , Marín Alba 
Published: August 2022

Este artículo estudia el poder de la visualidad en la política. Entre aquello que está permitido ver y aquello que está prohibido mostrar, el régimen escópico se define por la intervención del poder institucional respecto de la mirada del espectador. Este estudio se desarrolla entre la tradición filosófica y otras aportaciones multidisciplinares (estudios visuales, comunicación social, estética, historia del arte, teoría del arte) que evidencian a) el control político en los regímenes escópicos de la mirada del espectador; b) la consolidación de una cultura visual que condiciona el modo de vida de los individuos y las sociedades; c) el dominio del espacio social por medio de la regulación del espacio visual; y d) la manipulación de los afectos por medio de la experiencia visual. En este estudio destacamos la apertura de la consciencia crítica en la modernidad a la estetización de la política.