bluuebunny/crossref_metadata_2025 huggingface dataset:
Del "Diseño universal del aprendizaje" al "diseño universal de la enseñanza formativa": críticas y propuestas desde la pedagogía y la didáctica1
Authors: Rodríguez Herrero Pablo , De la Herrán Gascón Agustín
Published: October 2021

Este capítulo aborda el modelo de ‘diseño universal del aprendizaje’ (DUA) como enfoque desde el que llevar la práctica de la educación inclusiva al aula. Se realiza una crítica desde la Pedagogía, que detecta que, por la asociación del DUA con disciplinas como la Arquitectura, la Tecnología, la Psicología o la Neuropsicología, ha avanzado con limitaciones importantes en cuanto a sus posibilidades educativas. Desde esta crítica, se propone el ‘diseño universal de la enseñanza formativa’ (DUEF) como un modelo revisado que, sin negar los anteriores, incluye aspectos fundamentales para la educación inclusiva: el reconocimiento de las limitaciones de los modelos que pretenden una enseñanza universal para todos, la incorporación de finalidades educativas o la trascendencia del aula como único espacio formativo. Todo ello configura, a nuestro modo de ver, un enfoque emergente de educación inclusiva ‘con sentido’ y centrado en la persona.
Educación y atención a la primera infancia: concepción y síntesis histórica
Authors: Trujillo Vanegas Catalina , Sierra Barón Willian , Rincón Perdomo Julieth Milena
Published: October 2021

El presente trabajo tuvo como objetivo documentar elementos que han definido el marco de referencia de la educación y la primera infancia, así como aportar de forma concreta algunos elementos históricos que han caracterizado la atención a la primera infancia y distintos procesos educativos. Se esbozan algunas concepciones que han orientado la atención a la primera infancia, en un recorrido histórico por perspectivas en Europa, Estados Unidos, Latinoamérica y Colombia. Finalmente, se hace énfasis en el horizonte y sentido de la atención a la primera infancia en el contexto nacional. El texto concluye que los desafíos que se presentan en la atención integral a la primera infancia han sido objeto de reestructuración constante a través de las politicas que las han definido y que se han orientado hacia la educacion, el cuidado y la proteccion de los menores, guiado principalmente por variaciones en la evolucion sobre el concepto y comprension de la infancia.
Influence of the load level, change in the freatic level and height of the cohesive stratum on the consolidation settlements in a symmetrical building
Authors: Cárdenas Gutiérrez Javier Alfonso , Jacome Carrascal Jose Leonardo , Vergel Ortega Mawency
Published: October 2021

La investigación evalúa las liquidaciones de consolidación generadas por un edificio de cuatro cuadrantes, donde se estudia cada uno de los tipos de pie cambiando algunos de estos parámetros, para saber cuál de estos tres aspectos es el que más influye en la liquidación de consolidación en edificios de tres niveles, La metodología incluye cambio la cantidad de niveles que afectan a la carga y dimensiones de la zapata, análisis de variables e influencia del cambio de nivel freático en otra de las zapatas y finalmente se evalúa el asentamiento con el cambio de altura del estrato blando, que será el estrato consolidado. Se concluye que el análisis de la variabilidad de los asentamientos causada por el cambio de factores niveles de carga, dimensiones de las zapatas, variabilidad del nivel freático y cambio en la altura del estrato cohesivo, donde se presentará la consolidación.
Los propósitos y métodos de investigación de la inclusión en educación: algunos desplazamientos
Authors: Betancur Agudelo Julián Eduardo , Murcia Peña Napoleón
Published: October 2021

El artículo presenta los resultados de un estudio bibliográfico que buscó definir las tendencias de investigación de la inclusión en educación, tomando en consideración los objetivos y métodos utilizados. Se realizó a partir de bases de datos científicas y tesis postgraduales nacionales e internacionales, con los siguientes descriptores (Inclusión Educativa; Educación Inclusiva). Se utilizaron unos focos de análisis, tomados del estudio ‘Regiones Investigativas de la Educación y Pedagogía en Colombia’, a través de una matriz doxográfica. Los resultados muestran una gran relevancia hacia los métodos y objetivos direccionados a comprender e interpretar las realidades de la inclusión en educación.
El reconocimiento de la variación en textos escolares de español
Authors: Cisneros Estupiñán Mireya , Muñoz Dagua Clarena
Published: October 2021

La variación lingüística es un tema que invita al debate en los actuales escenarios educativos. Si bien, en muchos estudios se reconoce que las instituciones escolares inciden significativamente en la construcción del discurso de sus estudiantes, son menos los trabajos que analizan y explican cómo las prácticas de exclusión e inclusión de las diferencias entre los hablantes y sujetos educativos, se encuentran registradas y sistematizadas en los textos que sirven como guía y referente para el profesor y el estudiante en formación. Desde esta perspectiva, en el presente trabajo interesa, por un lado, precisar las condiciones contextuales que deberían enmarcar el estudio de la variación lingüística, con base en la categoría de Registro de la Lingüística Sistémico Funcional (Halliday, 1982) y, por otro, presentar argumentos para la formulación de una propuesta tendiente al reconocimiento de las diferencias en los usos lingüísticos de quienes provienen de comunidades de habla distintas. De este modo, con base en un corpus compuesto por textos de Español de primero a quinto año de básica primaria, se muestran los factores de situación que determinan las características lingüísticas de los textos escolares que son referente para los niños colombianos en su proceso de formación.
Modelos de intervención naturalista y lenguaje infantil: aproximación para una educación inclusiva
Authors: Puentes Chávez Daniela , Fernández Almudena
Published: October 2021

Desde la psicología en educación se han desarrollado diversas investigaciones dirigidas a explicar los procesos de enseñanza y aprendizaje en diferentes contextos educativos, mediante el uso de modelos de enseñanza que sirven de apoyo para potenciar aprendizajes significativos. El presente estudio tiene como objetivo identificar los elementos teóricos que constituyen los modelos de intervención naturalista, entendidos como una estrategia para ayudar a los padres y docentes a impulsar el desarrollo del lenguaje en contextos naturales, como el familiar o el escolar. Se realizó una revisión sistemática de diferentes investigaciones asociadas a los modelos naturalistas, lo cual permitió identificar características y aspectos relevantes para promover la elaboración de propuestas educativas que estén al servicio de la educación infantil.
Significaciones sobre la paz, el proceso de internalización del aprendizaje y las competencias socioafectivas, en los nichos de interacción pedagógica de la escuela en el preescolar.
Authors: Perdomo Cruz Emperatriz , Cuervo Leidy Carolina , Plazas Motta Eduardo
Published: October 2021

La cultura de la violencia se ha internalizado en las formas de pensar, de hablar, en las actitudes y comportamientos en la Escuela, la violencia es ejercida hacia los niños, las niñas, por lo que se hace necesario promover la paz estrategia fundamental. La Paz interior es el fundamento de este estudio, es un estado de serenidad y armonía perdurable e inalterable que trasforma a la persona desde su interior, se sustenta en las virtudes. Y la Paz Imperfecta que reconoce el conflicto como elemento constitutivo de la vida humana y potenciador de la misma, motor del desarrollo, son los conflictos los que desinstalan, generan incomodidad y conducen a buscar formas de vida más conciliadoras e incluyentes. (Muñoz, 1998, p. 46). “La internalización hace referencia a un proceso de autoconstrucción y reconstrucción psíquica, a una serie de transformaciones progresivas internas, originadas en operaciones o actividades de orden externo, mediadas por signos y herramientas socialmente construidas” (Vigotsky, 1978, citado en Tortoza et al, 2012). Las competencias socioafectivas, las competencias son concebidas entonces como el conjunto de “recursos de funcionamiento cognitivo” con que los niños se enfrentan y responden a las demandas crecientes de un entorno que se considera variable durante el largo período de la infancia. (MEN, 2010, p. 6). A demás se elaboró la discusión de estos resultados contrastándolos con el referente teórico y conceptual del estudio, la Tesis de la Paz interior y la Paz Imperfecta.
Fundamentos de óptica : Curso introductorio
Authors: Mejía Barbosa Yobani
Published: October 2021

El objetivo de este libro es que sirva de guía para los estudiantes del curso Fundamentos de óptica y también para aquellos estudiantes de otras carreras que deseen tener un primer acercamiento a la óptica.
The Investigation of Using Out-Classroom Experiences to Enhance Indonesian EFL Learners’ Speaking Performance
Authors: Sidik Ezis Japar , Utomo Dhafid Wahyu , Juniardi Yudi
Published: October 2021

The role of English in Indonesia can be said quite special because English is the only compulsory foreign language included in secondary curriculums. However, the special status of English in national education is not accompanied by satisfactory results. Out-classroom experience (OCE) is believed to overcome this issue and has been applied successfully. Therefore, this study investigates the use of out-classroom experience in enhancing Indonesian EFL learners’ ability in speaking English. By conducting a case study approach, the research used triangulation data collection techniques consisting of classroom observation, interview, and speaking performance test. The study involved 40 undergraduate students from one of the public universities in Banten province as its subjects. The result showed that the use of OCE positively contributes to the development of students’ speaking development. Out-classroom activities can facilitate the learners to access or even create language exposures by themselves. This study provided some implications about using OCE for language teachers and educational practitioners.

Keywords: Out-Classroom experiences, speaking, college students, EFL context
Pengaruh Media, Temperatur Dan Waktu Perlakuan Annealing Pada Spesimen Standar ASTM D638 Type IV Menggunakan Filamen ST PLA
Authors: Subakti Yulian , - Hasdiansah , Kurniawan Zaldy
Published: October 2021

Fused Deposition Modeling (FDM) is a technique of 3D Printing machines that is popularly used to print products. The printed product certainly has the ideal tensile strength characteristics if it has a precise size and good shape according to the standard. One of the materials that can be processed in a 3D printing machine is ST PLA. Research in terms of tensile testing has been carried out on PLA/ABS materials. However, tensile testing with annealing process using ST PLA filament is still very rarely done. From these problems, it is necessary to research to obtain optimal process parameters on 3D printing machines, to obtain the highest tensile strength from the annealing process using ST PLA material. This research was conducted using a 3D printer DIY Prusa model with a printing area of ​​XYZ, 300 mm x 300 mm x 350 mm. The material used is ST PLA filament with a diameter of 1.75 mm in green. The process parameters in this research are layer thickness, nozzle temperature and flow rate. For annealing media use beach sand, coffee and wheat. The shape of the test specimen follows the ASTM D638 type IV standard. As for the design of the process parameters using the Taguchi L9 method (33). The process parameter values ​​that produce the highest tensile strength without annealing are layer thickness 0.3 mm, nozzle temperature 205oC, and flow rate 100%. The annealing process parameters that produce the highest tensile strength are annealing time of 15 minutes, oven temperature of 110oC, for annealing media using coffee.
Analisa Kerusakan Pompa OCCWP Pada Pembangkit Listrik Tenaga Uap 2 x 115 MW
Authors: Sianturi Tambos , Hutauruk Sindak , Sihombing Fiktor
Published: October 2021

The use of pumps in the industrial world, especially in power plants, cannot be separated from problems that arise that can cause losses. The research was conducted at PLTU 2 X 115 MW by taking a case that had happened to the pump, namely the Open Cycle Cooling Water Pump 2A. The analytical method used in this final project is the vibration analysis method, namely by reading the spectrum of the data retrieval results so that it can be seen what happens to the equipment that experiences an increase in vibration.

 Bearing damage can be seen in the spectrum image of the measurement results, where the appearance of the spectrum in the high frequency range is an indication of bearing damage. And the high vibration which reaches 13.06 mm/s and is already in the danger category based on ISO 10816-3.
New Findings on the Origin and Making of Napoli, Biblioteca Nazionale, Ms VI E 40
Authors: Ferrari Nicolò
Published: October 2021

Recent research into the manuscript Napoli, Biblioteca Nazionale, VI.E.40 (I-Nn 40) has led to the identification of the coat of arms present at the end of the manuscript, and to a new updated codicological description. The same coat of arms is present also in a 1476 printed book of Pliny the Elder’s Historia Naturalis belonging to the rather obscure de Janly family of Burgundy, made up of courtiers and civil servants, ennobled in the first half of the fifteenth century. Discussed in this article are three members of the de Janly family who might have been the original owner of I-Nn 40, with Philibert de Janly identified as the most plausible candidate. The historical context of ownership and gift-giving typical of Burgundian courtiers of the new nobility is discussed, as well as manuscript’s donation to Beatrice of Aragon, and its history after it left Burgundy. The article also presents a new codicological description of the manuscript, offering new insights into its preparation and the copying process.
Antonio Chemotti, The Hymnbook of Valentin Triller (Wroclaw 1555). Musical Past and Regionalism in Early Modern Silesia, Warsaw 2020
Authors: Honisch Erika Supria
Published: October 2021

Book Review of: Antonio Chemotti, The Hymnbook of Valentin Triller (Wroclaw 1555). Musical Past and Regionalism in Early Modern Silesia, Warsaw 2020
PENGARUH MEDIA PEMBELAJARAN FLASHCARD TERHADAP KEMAMPUAN MEMBACA PERMULAAN PADA ANAK KELAS 1 SD NEGERI 01 SITIUNG KABUPATEN DHARMASRAYA
Authors: Lestari Endang Dwi
Published: October 2021

Berdasarkan latar belakang pada penelitian ini terdapat masalah terhadap kemampuan membaca permulaan siswa yang masih mengeja huruf dan belum digunakannya media pembelajaran yang bervariasi. Penelitian ini bertujuan untuk mengetahui tingkat pengaruh yang signifiksn dalam penggunaan media flash card terhadap kemampuan membaca permulaan pada anak kelas I SD Negeri 01 Sitiung. Penelitian ini menggunakan Pre-Experimental Desain. Desain penelitian Pre-Experimental yang di gunakan adalah One-Group Pretest-Posttest Desig. Pengumpulan data dilakukan dengan memberikan pretest dan posttest, pengumpulan data di kelas I SD Negeri 01 Sitiung hasil data pretest dan posttest tersebut di uji dengan menggunakan paired sample t-test pada SPSS20. Hasil penelitian menunjukkan bahwa penggunaan media flash card berpengaruh terhadap kemampuan membaca permulaan. Dimana nilai rata-rata pretes yaitu 65,6 sedangkan nilai rata-rata posttest yaitu 80,5. Serta uji T-tes diperoleh kedua data tingkat signifikannya lebih kecil dari 0,05 hasil perhitungan diperoleh sign < α (0,000 < 0,05). Hal ini menunjukan bahwa ada pengaruh penggunaan media flash card terhadap kemampuan membaca permulaan

 

Kata kunci : media flash card, membaca permulaan, pembelajaran Bahasa Indonesia
Kontribusi Orang Tua Dalam Pembelajaran Luring Selama Pandemi Covid-19 Pada Siswa Kelas III B Di SDN 136/II Sumber Harapan
Authors: Silvi Feni Rahmawati
Published: October 2021

This research is a problem in offline learning. Where some students who are active while attending lessons at school they get good learning outcomes but when given offline learning assignments they get low learning outcomes. This study aims to find out about the form of parental contribution in offline learning during the covid-19 pandemic. This research is a descriptive qualitative research type, conducted in class IIIB SDN 136/II Sumber Harapan in the even semester of the 2020/2021 academic year. Sources of data in this study were parents and students of class IIIB. Data collection techniques used in this study are interview methods and documentation methods. Data analysis is done by collection, reduction, display and verification. The results obtained are the form of parental contributions consisting of four contributions, namely: As caregivers and educators including scheduling children's study time and reminding children to do school assignments, as mentors including accompanying children while studying and overcoming children's difficulties in offline learning, as a motivator including parents can motivate by giving praise or gifts for positive things that have been done by children, as facilitators including parents can provide facilities such as books, worksheets, android mobile phones, internet quota. The obstacles faced by parents in offline learning during the COVID-19 pandemic are: parents do not understand the content of the subject matter, parents have little time to accompany their children to study, facilities are inadequate or limited, and children are difficult to teach by their parents.
Strategi Guru Kelas IV C SD Negeri 102/II Sungai Kerjan Dalam Menumbuhkan Minat Baca Peserta Didik Pada Masa Belajar Jarak Jauh Di Era Covid-19
Authors: Andini Bunga , Husni Rauldatul , Fitri Alchonity Harika
Published: October 2021

Strategi guru dilakukan untuk tercapainya suatu proses pembelajaran yang telah di rencanakan. Minat baca pada peserta didik tidak bisa tumbuh dengan sendirinya, akan tetapi membutuhkan peranan orang lain dalam menumbuhkan minat baca. Penelitian ini bertujuan untuk menganalisis adakah strategi guru kelas IV C SD Negeri 102/II Sungai Kerjan dalam menumbuhkan minat baca peserta didik pada masa belajar jarak jauh di era covid-19. Jenis penelitian ini penelitian kualitatif yaitu penelitian yang bersifat deskriptif dan cenderung menggunakan analisis berupa kata-kata seseorang, tulisan, atau lisan tentang perilaku seseorang yang dapat diamati. Pengumpulan data dilakukan dengan cara mewawancarai guru wali kelas IV C. Teknik pengumpulan data penelitian dengan melakukan observasi, wawancara dan dokumentasi. Hasil penelitian menunjukkan bahwa guru wali kelas IV C memiliki strategi dalam menumbuhkan minat baca peserta didik yaitu dengan cara memberi tugas membaca, memberi bahan bacaan yang menarik, memotivasi peserta didik, memberikan instruksi dengan jelas, memanfaatkan pojok baca, memberikan reward untuk menambah semangat peserta didik membaca dan bekerjasama dengan orang tua.
PENGARUH MODEL PEMBELAJARAN NUMBERED HEAD TOGETHER (NHT) TERHADAP HASIL BELAJAR SISWA MUATAN PEMBELAJARAN PPKn KELAS IV DI SDN 221/II TALANG PAMESUN
Authors: Wulandari Isti , Novitasari Ana , Pratama Deded
Published: October 2021

Berdasarkan latar belakang peneliti, banyak sekali ditemukannya siswa yang pasif saat proses pembelajaran, interaksi antar siswa yang kurang saat belajar, jarang adanya diskusi kelompok saat belajar, siswa kurang bertanggung jawab mengerjakan tugasnya, dan rendahnya hasil belajar siswa PPKn di kelas IV. Upaya mengatasi permasalah tersebut, diperlukan model pembelajaran yang inovatif dan menarik yaitu Model Pembelajaran Numbered Head Together (NHT). Penelitian ini bertujuan untuk membuktikan pengaruh model pembelajaran Numbered Head Together (NHT) terhadap hasil belajar siswa muatan pembelajaran PPKn kelas IV di SDN 221/II Talang Pamesun. Jenis penelitian ini adalah kuantitatif yang menggunakan metode penelitiannya yaitu Ekperimen. Desain penelitian yang digunakan adalah Pre-Experimental Design dengan bentuk One group pretest posttest design. Sampel yang digunakan adalah seluruh siswa kelas IV di SDN 221/II Talang Pamesun. Hasil penelitian eksperimen ini  datanya diolah dengan uji normalitas dan uji hipotesis. Hasil dari uji normalitas yaitu data pretest yaitu 0,550>0,05 dan signifikansi yang diperoleh dari data posttest yaitu 0,264>0,05. Artinya data pretest dan posttest siswa kelas IV SDN 221/II Talang Pamesun adalah berdistribusi normal.  Sedangkan hasil uji hipotesis yaitu 0,000<0,05 artinya  ditolak dan   diterima. Maka dapat disimpulkan bahwa terdapat pengaruh model pembelajaran Numbered head Together (NHT) terhadap hasil belajar siswa muatan pembelajaran PPKn kelas IV di SDN 221/II Talang Pamesun.
Pengembangan Modul Bergambar Pada Tema 8 Untuk Meningkatkan Keterampilan Membaca Untuk Peserta Didik Kelas II Pembelajaran Bahasa Indonesia Di SD N 107 Ngaol I Kabupaten Merangin
Authors: Safitri Defa Gustia , Prasetyo Dian Estu , Saputra Riyadi
Published: October 2021

Penelitian ini dilatar belakangi oleh kurangya keterampilan membaca peserta didik dalam pembelajaran bahasa Indonesia, sehingga diperlukan modul bergambar, ini membantu peserta didik agar dapat membaca dengan mudah mempelajari, tertarik untuk membaca ini dengan desain yang menarik dan bergambar, tujuannya yaitu modul bergambar ini valid, praktis dan efektif.  Pengembangan modul bergambar menggunakan model ADDIE yang terdiri dari 5 tahapan yaitu, analisis (analyze), Perencanaan (design), pengembangan (development), implementasi (implementation), evaluasi (evaluation). Kelima tahapan dilakukan memulai analisis materi, analisis peserta didik, analisis kebutuhan. Kemudian uji validasi olen 3 orang validator ( tim ahli ) mengatakan  valid dan pratis delanjutnya dilakukan uji efektifitas dengan melakukan tes soal oleh peserta didik di SD N 107 Ngaol I Kabupaten Merangin Hasil penelitian pengembangan modul bergambar ini uji oleh tiga validator memperoleh nilai dengan rata – rata  84,72% dengan dikategori sangat valid, Nilai pratikalitas guru memperoleh nilai rata- rata 96% dan nilai Pratikalitas Peserta didik memperoleh nilai rata – rata 94,42% dengan kategori sangat praktis dan nilai efektifitas memperoleh nilai rata – rata 92,85% dengan kategori sangat. Dapat disimpulkan bahwa modul bergambar ini pembelajaran bahasa Indonesia dengan hasil memenuhi kategori valid, pratis dan efektifitas. Dapat memudahkan peserta didik dan pendidik memcapai tujuan pembelajaran.
Вміст фотосинтетичних пігментів у хвої сосни звичайної (Pinus sylvestris L.) в умовах заповідних об'єктів міста Черкаси
Authors: Чемерис І. А. , Ключка С. І.
Published: October 2021

Деревні насадження парків міст, що належать до природно-заповідного фонду держави, перебувають під впливом стресових чинників, тому є актуальним питання їх діагностики. Фотосинтетичний апарат рослин є одним з показників їх життєвого стану. Досліджено фотосинтетичний апарат хвої сосни звичайної парків-пам'яток садово-паркового мистецтва Черкас. Встановлено, що в Черкасах поєднання перепадів температури та збільшення середньої літньої температури і зниження відносної вологості повітря створює умови для посух. Високий рівень забруднення атмосферного повітря (індекс забруднення 7,22) у поєднанні з низьким потенціалом до розсіювання шкідливих домішок в атмосфері сприяють послабленню соснових деревостанів парків міста. Виявлено збільшення концентрації хлорофілів та каротиноїдів хвої порівняно з деревами контрольної ділянки у парках "Сосновий бір" (Ахл а – в 1,2 раза; Ахл b – в 1,6 раза; Акар – в 1,3 раза) та "Обласна лікарня" (Ахл а – в 1,4 раза; Ахл b – в 1,9 раза; Акар – в 1,4 раза), а у дерев парку "Перша міська лікарня" встановлено, що концентрація хлорофілу а та каротиноїдів в 1,5 раза, а хлорофілу b в 1,05 раза менша, ніж у контрольних дерев. Виявлено достовірний зворотній зв'язок між концентрацією сульфатів у снігових опадах та концентрацією хлорофілу а (r = -0,844 при ts = 6,24 ˃ t0,05 = 2,26) та хлорофілу b (r = -0,762 при ts = 5,37 ˃ t0,05 = 2,26). З'ясовано, що співвідношення вмісту хлорофілу a до хлорофілу b у досліджуваних дерев нижче (2,50-2,59) порівняно з контрольними деревами (3,52). Виявлено, що співвідношення вмісту хлорофілів до вмісту каротиноїдів у дерев контрольної ділянки (4,09) менше, ніж у дерев паркових насаджень (4,21-4,53). З'ясовано, що фотохімічна активність хлоропластів соснових деревостанів досліджуваних ділянок нижча порівняно з контролем (425,84±18,24): парк "Сосновий бір" – 386,44±15,63, парк "Обласна лікарня" – 354,26±12,34, парк "Перша міська лікарня" – 300,01±13,85. Встановлено, що зміни фотосинтетичного апарату рослин парків "Сосновий бір" та "Обласна лікарня" свідчать про розвиток адаптивної специфічної реакції на стресогенні чинники міського середовища, а зниження всіх досліджуваних показників сосни звичайної "Парку Першої міської лікарні" діагностує пригнічення фотосинтетичної функції деревостанів та розвиток деструктивних процесів.
Аналітичне визначення коефіцієнта форми зубця пило
Authors: Ребезнюк І. Т. , Дзюба Л. Ф. , Ліщинська Х. І. , Лазарчук К. Я. , Саловський С. А.
Published: October 2021

Встановлено, що рекомендовані в літературі величини коефіцієнта форми зубця пилок не дають змоги точно визначати коефіцієнт напруженості западини та швидкість подавання деревини, оскільки мають широкий діапазон значень. Показано, що для обчислення дійсних величин коефіцієнта форми зубця пилок за відомого кроку зубців необхідно знати площі западин, тому що неточності визначення цих площ на підставі рекомендованих у літературних джерелах величин коефіцієнта форми зубця пилок є істотними. Це підтверджено визначенням дійсних площ міжзубцевих западин за відбитками зубчастих вінців пилок. Використовуючи методи аналітичної геометрії у роботі отримано аналітичні залежності для визначення площ міжзубцевих западин та коефіцієнта форми зубця пилок, профілі зубчастих вінців яких відповідають міжнародному стандарту. На підставі геометрії зубчастого вінця пилки профілю NV із закругленою западиною та прямою задньою поверхнею розроблено формули для визначення площ міжзубцевих западин та коефіцієнтів форми зубця пилок із зубчастими вінцями профілів NU, KV, KU, PV, PU. В аналітичних залежностях враховано такі параметри зубчастого вінця: крок зубців; кутові параметри зубців (головний передній кут, головний кут загострення, головний задній кут); радіус закруглення міжзубцевої западини. Для зубчастого вінця пилки профілю KV у формулах для визначення площі міжзубцевої западини та коефіцієнта форми зубця пилок враховано зменшення площі міжзубцевої западини порівняно з площею профілю NV унаслідок наявності трикутного виступу. Для пилки із зубцями профілю PV прийнято припущення, що радіус закруглення задньої поверхні дорівнює подвоєному крокові зубця. Зменшення площі міжзубцевої западини зубчастого вінця профілю PV порівняно з профілем NV враховано наявністю кругового сектора. Для зубчастих вінців пилок профілів NU, KU, PU збільшення площ міжзубцевих западин порівняно з площами міжзубцевих западин профілів NV, KV, PV враховано додаванням площі прямокутника, яка дорівнює добутку довжини дна западини на висоту зубця. Залежності для визначення коефіцієнта форми зубця пилок із зубчастими вінцями профілів NV, NU, KV, KU, PV, PU отримано як відношення площ міжзубцевих западин до квадрата кроку зубців. Показано, що отримані аналітичні залежності дають змогу достатньо точно визначати площі міжзубцевих западин та коефіцієнт форми зубця пилок.
A Graph Theory of Rook Placements
Authors: Barrese Kenneth
Published: October 2021

Two boards are rook equivalent if they have the same number of non-attacking rook placements for any number of rooks. Define a rook equivalence graph on an equivalence class of Ferrers boards by specifying that two boards are connected by an edge if you can obtain one of the boards by moving squares in the other board out of one column and into a single other column. Given such a graph, we characterize which boards will yield connected graphs. We also provide some cases where common graphs will or will not be the graph for some set of rook equivalent Ferrers boards. Finally, we extend this graph definition to the m-level rook placement generalization developed by Briggs and Remmel. This yields a graph on the set of rook equivalent singleton boards, and we characterize which singleton boards give rise to a connected graph.
Zero-Sum Squares in Bounded Discrepancy $\{-1,1\}$-Matrices
Authors: Arévalo Alma R. , Montejano Amanda , Roldán-Pensado Edgardo
Published: October 2021

For $n\geqslant 5$, we prove that every $n\times n$ matrix $\mathcal{M}=(a_{i,j})$ with entries in $\{-1,1\}$ and absolute discrepancy $\lvert\mathrm{disc}(\mathcal{M})\rvert=\lvert\sum a_{i,j}\rvert\leqslant n$ contains a zero-sum square except for the split matrices (up to symmetries). Here, a square is a $2\times 2$ sub-matrix of $\mathcal{M}$ with entries $a_{i,j}, a_{i+s,s}, a_{i,j+s}, a_{i+s,j+s}$ for some $s\geqslant 1$, and a split matrix is a matrix with all entries above the diagonal equal to $-1$ and all remaining entries equal to $1$. In particular, we show that for $n\geqslant 5$ every zero-sum $n\times n$ matrix with entries in $\{-1,1\}$ contains a zero-sum square.
Electronic Word Of Mouth Dan Brand Image Dalam Minat Beli Layanan Aplikasi Musik Spotify
Authors: Masdaner Reynanta , Ruliana Poppy
Published: October 2021

Currently the trend of listening to music using music application is gaining popularity. One of the most popular streaming music applications is Spotify. Spotify’s strong brand image makes it easy for the public to remember. Spotify’s brand image was formed through electronic word of mouth (eWOM). eWOM is marketing communication strategy that influences and generates buying interest when users see interesting and positive comments on the internet regarding the Spotify streaming music application product. This study aimsto determine the effect of eWOM and brand image on interest in purchasing Spotify premium services. What is meant by premium service is a paid feature to get full and ad free access. This study uses a quantitative approach using a survey method which conducted on 100 students of STIKOM Interstudi who are users of the Spotify streaming music application. The results show that eWOM and brand image have a positive influence on the interest in buying premium services for the Spotify streaming music application
Faktor Menonton Drama Korea Melalui Media Online (Web) Pada Remaja Putri
Authors: Talitha Reyhan Widana  , Hermanu Diajeng Herika
Published: October 2021

This study aims to identify the factors of watching Korean dramas through online media (web) in young women. The study was conducted by distributing 400 questionnaires to young women in DKI Jakarta through an online survey. Quantitative data analysis methods are used and analyzed through factor analysis. The factor analysis summarizes two factors of watching Korean dramas, namely the learning factor and the sociability factor. It was found that Learning and Sociability are factors that influence young women to watch Korean dramas through online media (web) be-cause of the easy internet access and complete streaming facilities.
Study of Riamilovir Activity Against SARS-CoV-2 Infection In Syrian Hamsters
Authors: Chepur S. V. , Smirnova A. V. , Kirienko A. N. , Myasnikova I. A. , Kanevsky B. A. , Sorokin P. V.
Published: October 2021

The activity of the antimetabolic drug Riamilovir (Triazavirin®) was studied on a model of SARS-CoV-2 infection on Syrian hamsters. Infectious process was caused by the intranasal administration of the virus accumulated in the Vero-B culture with a concentration of 4.25×104 TCID50, in a volume of 26 µl/hamster. The eﬀects of the drug at a dose of 20 mg/kg intraperitoneally daily in the midst of the infectious process were traced to accelerate the clearance of the virus in the lungs, prevent body weight loss and the severity of pulmonary edema, as well as preserve the mass of the spleen. The protective eﬀects of Riamilovir on the structure of the lungs and brain are shown, it is suggested that the drug has the ability to penetrate the blood-brain barrier. It was concluded that Riamilovir has antiviral activity against SARS-CoV-2.
Nifuroxazide Pharmaceutical Preparations in the Russian Federation. Publication One: Nomenclature, Chemical and Pharmaceutical Characteristics of the Preparations’ Composition
Authors: Kocherovets V. I. , Mardanly S. G.
Published: October 2021

One of the most used antimicrobial nitrofurans in Russian medical practice is nifuroxazide, which is distinguished by high therapeutic eﬃcacy, drug safety, as well as economic availability in the treatment of acute bacterial diarrhea without deterioration of the general condition, fever, and intoxication. In the Russian Federation (RF), nifuroxazide preparations in general circulation are supplied by 19 domestic and foreign pharmaceutical organizations. The aim of this study was to analyze the nomenclature, as well as chemical and pharmaceutical characteristics of excipients (EXs) in the composition of nifuroxazide preparations, which received state registration in the RF. A comparative study of the chemical and pharmaceutical characteristics of EXs of 42 nifuroxazide preparations in the form of capsules, tablets, and suspension for oral administration was carried out. The pharmaco-economic status is noted and the demand prospects for all forms of nifuroxazide preparations in the RF are outlined. Quantitative and qualitative diﬀerences in the composition of the EXs of a number of nifuroxazide preparations in the form of capsules and suspensions has been shown.
TESS Data for Asteroseismology (T’DA) Stellar Variability Classification Pipeline: Setup and Application to the Kepler Q9 Data
Authors: Audenaert J. , Kuszlewicz J. S. , Handberg R. , Tkachenko A. , Armstrong D. J. , Hon M. , Kgoadi R. , Lund M. N. , Bell K. J. , Bugnet L. , Bowman D. M. , Johnston C. , García R. A. , Stello D. , Molnár L. , Plachy E. , Buzasi D. , Aerts C. ,   The T’DA collaboration
Published: October 2021

The NASA Transiting Exoplanet Survey Satellite (TESS) is observing tens of millions of stars with time spans ranging from ∼27 days to about 1 yr of continuous observations. This vast amount of data contains a wealth of information for variability, exoplanet, and stellar astrophysics studies but requires a number of processing steps before it can be fully utilized. In order to efficiently process all the TESS data and make it available to the wider scientific community, the TESS Data for Asteroseismology working group, as part of the TESS Asteroseismic Science Consortium, has created an automated open-source processing pipeline to produce light curves corrected for systematics from the short- and long-cadence raw photometry data and to classify these according to stellar variability type. We will process all stars down to a TESS magnitude of 15. This paper is the next in a series detailing how the pipeline works. Here, we present our methodology for the automatic variability classification of TESS photometry using an ensemble of supervised learners that are combined into a metaclassifier. We successfully validate our method using a carefully constructed labeled sample of Kepler Q9 light curves with a 27.4 days time span mimicking single-sector TESS observations, on which we obtain an overall accuracy of 94.9%. We demonstrate that our methodology can successfully classify stars outside of our labeled sample by applying it to all ∼167,000 stars observed in Q9 of the Kepler space mission.
New Investigations of Dark-floored Pits In the Volatile Ice of Sputnik Planitia on Pluto
Authors: Alan Stern S. , Keeney Brian , Hoover Rachael , Protopapa Silvia , White Oliver , Grundy Will , Cruikshank Dale P. ,   And the New Horizons Team
Published: October 2021

Sputnik Planitia, Pluto’s gigantic, volatile ice glacier, hosts numerous scientific mysteries, including the presence of thousands of elongated pit structures. We examine various attributes of these pit structures in New Horizons data sets, revealing their length, aspect ratio, and orientation properties; we also study their reflectivities, colors, and compositions, and compare these attributes to some other relevant regions on Pluto. We then comment on origin mechanisms of the pits and also the fate of the missing volatiles represented by the pits on Sputnik Planitia. From a sample of 317 pits, we find typical length/width ratios of 2–4, with their major axis preferentially oriented approximately north–south. We also find that the floors of large pits in our sample have similar single-scattering albedos and colors to dark material on crater rims and floors (i.e., possible subsurface windows) in Burney basin. We also find that the base of the three pits in our sample, large enough to study with LEISA IR spectroscopy, display both CH4 and N2 absorption features, as do the dark regions in crater windows in Burney basin. Evidence for a sublimation erosion origin for the pits is supported over both the explosion/ejecta venting and structural collapse alternatives. Finally, we find that the mass lost by the pits on Sputnik Planitia most likely lies condensed elsewhere, on Pluto’s surface, relocated there by volatile transport as opposed to removal by escape to space or photochemical conversion.
AT 2019qyl in NGC 300: Internal Collisions in the Early Outflow from a Very Fast Nova in a Symbiotic Binary*

†
Authors: Jencson Jacob E. , Andrews Jennifer E. , Bond Howard E. , Karambelkar Viraj , Sand David J. , van Dyk Schuyler D. , Blagorodnova Nadejda , Boyer Martha L. , Kasliwal Mansi M. , Lau Ryan M. , Mohamed Shazrene , Williams Robert , Whitelock Patricia A. , Amaro Rachael C. , Bostroem K. Azalee , Dong Yize , Lundquist Michael J. , Valenti Stefano , Wyatt Samuel D. , Burke Jamie , De Kishalay , Jha Saurabh W. , Johansson Joel , Rojas-Bravo César , Coulter David A. , Foley Ryan J. , Gehrz Robert D. , Haislip Joshua , Hiramatsu Daichi , Howell D. Andrew , Kilpatrick Charles D. , Masci Frank J. , McCully Curtis , Ngeow Chow-Choong , Pan Yen-Chen , Pellegrino Craig , Piro Anthony L. , Kouprianov Vladimir , Reichart Daniel E. , Rest Armin , Rest Sofia , Smith Nathan
Published: October 2021

Nova eruptions, thermonuclear explosions on the surfaces of white dwarfs (WDs), are now recognized to be among the most common shock-powered astrophysical transients. We present the early discovery and rapid ultraviolet (UV), optical, and infrared (IR) temporal development of AT 2019qyl, a recent nova in the nearby Sculptor Group galaxy NGC 300. The light curve shows a rapid rise lasting ≲1 day, reaching a peak absolute magnitude of M

V
= −9.2 mag and a very fast decline, fading by 2 mag over 3.5 days. A steep dropoff in the light curves after 71 days and the rapid decline timescale suggest a low-mass ejection from a massive WD with M
WD ≳ 1.2 M
⊙. We present an unprecedented view of the early spectroscopic evolution of such an event. Three spectra prior to the peak reveal a complex, multicomponent outflow giving rise to internal collisions and shocks in the ejecta of an He/N-class nova. We identify a coincident IR-variable counterpart in the extensive preeruption coverage of the transient location and infer the presence of a symbiotic progenitor system with an O-rich asymptotic-giant-branch donor star, as well as evidence for an earlier UV-bright outburst in 2014. We suggest that AT 2019qyl is analogous to the subset of Galactic recurrent novae with red-giant companions such as RS Oph and other embedded nova systems like V407 Cyg. Our observations provide new evidence that internal shocks between multiple, distinct outflow components likely contribute to the generation of the shock-powered emission from such systems.
A Detailed View of the Broad-line Region in NGC 3783 from Velocity-resolved Reverberation Mapping
Authors: Bentz Misty C. , Williams Peter R. , Street Rachel , Onken Christopher A. , Valluri Monica , Treu Tommaso
Published: October 2021

We have modeled the full velocity-resolved reverberation response of the Hβ and He ii optical broad emission lines in NGC 3783 to constrain the geometry and kinematics of the low-ionization and high-ionization broad-line region (BLR). The geometry is found to be a thick disk that is nearly face-on, inclined at ∼18° to our line of sight, and exhibiting clear ionization stratification, with an extended Hβ-emitting region (

r

median

=

10.07

−
1.12

+
1.10

lt-day) and a more compact and centrally located He ii-emitting region (

r

median

=

1.33

−
0.42

=
+
0.34

lt-day). In the Hβ-emitting region, the kinematics are dominated by near-circular Keplerian orbits, but with ∼40% of the orbits inflowing. The more compact He ii-emitting region, on the other hand, appears to be dominated by outflowing orbits. The black hole mass is constrained to be M
BH =

2.82

−
0.63

+
1.55

×

10

7

M
⊙, which is consistent with the simple reverberation constraint on the mass based on a mean time delay, line width, and scale factor of 〈f〉 = 4.82. The difference in kinematics between the Hβ- and He ii-emitting regions of the BLR is intriguing given the recent history of large changes in the ionizing luminosity of NGC 3783 and evidence for possible changes in the BLR structure as a result.
The Final Fates of Close Hot Subdwarf–White Dwarf Binaries: Mergers Involving He/C/O White Dwarfs and the Formation of Unusual Giant Stars with C/O-Dominated Envelopes
Authors: Schwab Josiah , Bauer Evan B.
Published: October 2021

Recently, a class of Roche-lobe-filling binary systems consisting of hot subdwarf stars and white dwarfs (WDs) with sub-hour periods has been discovered. At present, the hot subdwarf is in a shell He-burning phase and is transferring some of its remaining thin H envelope to its WD companion. As the evolution of the hot subdwarf continues, it is expected to detach, leaving behind a low-mass C/O-core WD secondary with a thick He layer. Then, on a timescale of ∼10 Myr, gravitational wave radiation will again bring the systems into contact. If the mass transfer is unstable and results in a merger and a catastrophic thermonuclear explosion is not triggered, it creates a remnant with a C/O-dominated envelope, but one still rich enough in He to support an R Corona Borealis-like shell-burning phase. We present evolutionary calculations of this phase and discuss its potential impact on the cooling of the remnant WD.
Eating insects – from acceptable to desirable consumer products
Authors: Fischer A.R.H.
Published: October 2021

There is a considerable amount of research into consumer acceptance of insects as food in high-income countries. Most of this research has focussed on identifying the reasons why consumers either resist or are enticed into trying eating insects. In this paper I argue that consumers trying insects is an insufficient, albeit necessary first, step towards creating a relevant market for insects as food. I advocate that the creation of such a market requires an increase in research into what makes insect products desirable rather than merely acceptable.
Agile Project Management in International Logistics Operations
Authors: Faganel Armand , Janeš Aleksander
Published: October 2021

The chapter discussed a business model (BM) perspective as an innovating practice to analyze the transition of the EuroPacific LL Company (EuroPacific) from regional logistic operator to domestic logistic operator or third-party logistic provider (3PL) for Asian companies. The company operates regionally in markets of Croatia, Hungary, Serbia, Slovakia, and Slovenia and globally in South Korea, India, and Singapore. The chosen long-term business vision of the company is based on the goal of becoming the key logistics provider of goods from the Far East directed to the European markets. The company was confronted with the first period of crisis from 2008 to 2010 and again with the second crisis started in 2020 when they realized that, although known as the crisis breaker, the company is not being exempted from market challenges, extraordinary situations like pandemic, and consecutive economic downturn effects.
Agile Project Management
Authors: Verma Rahul
Published: October 2021

This chapter presents the notion of agile project management and identifies the existing challenges in agile project management in the new millennium. It sets the scene for discussions presented by various authors too. In particular, the chapter identifies the experience and the related problems with agile project management. It also identifies the importance of adoption of agile project management and debates about the measure of agility.
Machine Learning and Data Science Project Management From an Agile Perspective
Authors: Uysal Murat Pasa
Published: October 2021

Successful implementations of machine learning (ML) and data science (DS) applications have enabled innovative business models and brought new opportunities for organizations. On the other hand, research studies report that organizations employing ML and DS solutions are at a high risk of failure and they can easily fall short of their objectives. One major factor is to adopt or tailor a project management method for the specific requirements of ML and DS applications. Therefore, agile project management (APM) may be proposed as a solution. However, there is significantly less study that explores ML and DS project management from an agile perspective. In this chapter, the authors discuss methods and challenges according to the background information and practice areas of ML, DS, and APM. This study can be viewed as an initial attempt to enhance these knowledge and practice domains in view of APM. Therefore, future research efforts will focus on the challenges as well as the experimental implementation of APM methods in real industrial case studies of ML and DS.
Effective Agile Project Leadership Through Competency-Based Self-Reflection
Authors: Saruchera Fanny
Published: October 2021

The agile revolution and increasing cross-functionality nature of project teams imply an increasing need for effective and results-orientated project leadership. Irrespective of one's role in a project, there is a need for self-examination and self-reflection regarding how members relate during the various phases of project implementation. This chapter focuses on a theoretical review of the various elements necessary for effective agile project leadership. Through a synthesis of both old and more recent literature, the chapter identifies and conceptualizes ten determinant factors of effective agile project leadership and proposes a self-reflection framework for each of the ten project leadership competency areas. The chapter concludes by proposing a personal agile project leadership development plan (PAPLDP) template with an agility component that can be adopted for improvement and growth. This chapter challenges project managers and/or project team leaders to define their own value-based leadership competence and continuously reflect, evaluate, and improve themselves.
Climate Integration in Sustainable Urban Planning
Authors: Lachir Asia
Published: October 2021

Currently, cities are home to more than half of the world's population. The increasing urbanization rates create an unprecedented urban sprawl that worsens the urban climate situation. Urban areas modify their local climate and face the consequent urban climate impacts, which are particularly exacerbated by global climate change. This chapter shares scientific knowledge on how cities affect their climate and how urban spatial planning can mitigate the negative impacts of urban climate. Focus is given on the urban heat island, the most documented aspect of urban climate, directly linked to city spatial characteristics and functions. This phenomenon is explained, and tools and methods to assess it and mitigate its intensity are introduced in an attempt to help urban planners and designers to use climatic knowledge in urban planning to build more sustainable and climate-resilient cities.