bluuebunny/crossref_metadata_2025 huggingface dataset:
Design parameters of dental implants: A review
Authors: Rahmanivahid P. , Heidari M.
Published: March 2022

An ideal dental implant is a design that maximizes the anchorage strength of implants in human jawbones and minimizes peak stress values in bone-implant interfaces under given standard loads. The stress concentration at the bone-implant contact is controlled by implant design, which determines the bone biological response. Implant design has improved as a result of marketing demands. The modification of shape, size, material, and surface topography of primary designs has been the focus of dental implant design in response to marketing needs. Since the integration of bone-implant has been highlighted in dentistry investigations, improving implant design depends on the prediction of mechanical reactions and remodeling response of bony tissues around implants. There are four types of implants design including Screws, cylinders, Conical cylinders, and Blades type implants. The major difference between these designs is in implant primary stability. With the development of computational technologies, researchers can predict long term oral bone remodeling around implants by use of the finite element method. This review considers the design parameters of dental implants in which affect stress, strain in bone-implant interfaces, and bone remodeling around the implant.
Pemanfaatan Limbah Minyak Jelantah Menjadi Sabun Berbasis Ecogreen dalam Meningkatkan Pendapatan Rumah Tangga Di Desa Klambir Lima Kebun
Authors: Erwansyah Erwansyah
Published: March 2022

Kegiatan kepada Masyarakat dengan judul “Pemanfaatan Limbah Minyak Jelantah Menjadi Sabun Berbasis Ecogreen Dalam Meningkatkan Pendapatan Rumah Tangga di Desa Klambir Lima Kebun, Kecamatan Hamparan Perak Kabupaten Deli Serdang” berguna untuk memberikan pengetahuan melatih membuat sabun Ecogreen dari minyak jelantah tersebut kepada masyarakat di Desa Klambir Lima Kebun Kecamatan Hamparan Perak Kabupaten Deli Serdang khususnya Ibu rumah tangga agar menambah pendapatan. Dari kegiatan ini diharapkan nantinya hasil limbah yang telah menjadi produk sabun Ecogreen dapat menyeimbangkan pemasukan dan pengeluaran rumah tangga pada masayarakat di Desa Klambir Lima Kebun, Kecamatan Hamparan Perak Kabupaten Deli Serdang.Kata Kunci : Limbah Minyak Jelantah, Ecogreen, Pendapatan Rumah Tangga
Health Students Perception of Online Learning Environment during the COVID-19 Pandemic: Survey on Quality of Online Learning in Indonesian University
Authors: Rumalessin Ummu Artha Tsary , Sutapa Johanes Pramana Gentur , Martani Wisjnu
Published: March 2022

The COVID-19 pandemic has disrupted the teaching and learning process at various universities, especially for health science students. Electronic learning (E-Learning) is applied as a core learning method to carry out learning during the pandemic. This study aimed at investigating health science students’ perception about the quality of their online learning during the pandemic. A mixed method research design was implemented in this current study. The modified version of Online Learning Environment Survey (OLES) was used as the main instrument to collect data from 390 health science students at 'Aisyiyah University in Yogyakarta consisting of seven study programs such as nursing, anesthesiology, midwifery, physiotherapy, nutrition, medical lab technology and radiology. Contrary assumption from the previous research, this study found that there were only slight differences between students from the seven study programs with regard to their perception of online learning. Majority of students agreed that during pandemic they have studied real cases and considered to be relevant to issues that occur outside the classroom. However, in health science education system where many courses are practical oriented, students confirmed that shifting completely to online mode may not be possible to enhance their skill to become a professional medical in the future. Therefore, it is prominent to design an effective curriculum for health science education system for the new normal.
Un libro maquiavélico
Authors: Vila Esteban Ezequiel
Published: March 2022

Revisión del libro Maquiavelo en la Argentina. Usos y lecturas, 1830-1940 por L. Losada
Notas codicológicas sobre algunos testimonios de las Siete Partidas
Authors: Fradejas Rueda José Manuel
Published: March 2022

El deber básico de todo investigador que aborde la edición de un texto con transmisión manuscrita, e incluso impresa, es el examen directo de todos los testimonios. Alberto Blecua indicaba, también, que “son sumamente importantes las descripciones (…) antiguas de manuscritos” (1983, p. 38). El trabajo de campo realizado en las bibliotecas y archivos que conservan algún testimonio de las Siete Partidas y el análisis de muchas de las viejas descripciones nos han mostrado que se han de tomar con cierta prevención debido a la poca atención que se le ha prestado tanto al soporte material como al contenido de esos testimonios. Producto de la revisión y análisis directo de los originales son las tres notas codicólogicas siguientes. En la primera, se establece que una copia manuscrita conservada en el Archivo Histórico de la Nobleza (Toledo) está basada en un ejemplar de la edición incunable de Díaz Montalvo (1491). En la segunda se demuestra que la tabla inicial del ms. VITR/4/6 de la BNE no está desplazada y que se reubicó en ese lugar cuando se creó el volumen definitivo a lo largo de la segunda mitad del siglo xv. En el tercero se demuestra que el ms. 8721 de la BNE contiene una copia completa, pero mutilada de la Séptima Partida.
La princesa Kristina de Noruega en la novela histórica postmoderna: proyecciones ficcionales e interpretaciones actuales de la cultura alfonsí
Authors: Albert Mechthild
Published: March 2022

El presente artículo analiza el reciente boom de novelas históricas dedicadas a la princesa Kristina de Noruega (1234–1262), esposa del infante Felipe de Castilla, que contribuyen a construir la época de Alfonso X como lugar de la memoria desde una perspectiva actual, enfocando, entre otros, la condición femenina, la convivencia intercultural y la idea de Europa. Asimismo, varios recursos metaficcionales sirven a poner de relieve la relación entre ficta y facta.
¿Un anacronismo que desacredita toda la narrativa? A propósito de los caballeros romanos en los fragmentos diodoreos de la primera guerra servil
Authors: Piantanida Fernando Martín
Published: March 2022

El presente artículo tiene por objeto analizar la problemática del anacronismo diodoreo sobre los caballeros romanos que actúan como jueces de los gobernadores provinciales y su relación con la credibilidad histórica del resto de su narrativa de la primera guerra servil. En contraposición a una postura historiográfica hipercrítica, se argumenta que el anacronismo no tiene un rol central en el relato del siciliano. Pues la revuelta no se explica por esa afirmación errónea, sino por las referencias a los terratenientes itálicos en la isla y su influencia perniciosa sobre los sicilianos. Por otra parte, cotejando la información de la narrativa diodorea con los indicios procedentes de otras fuentes literarias y epigráficas, se sostiene que Diodoro no parece desconocer la realidad siciliana del siglo II a.C. y que su anacronismo no socava el valor histórico de los otros fragmentos conservados.
La dinámica política en la Argentina 2015-2020. Giro, contra giro ¿y después?
Authors: Retamozo Martín , Schuttenberg Mauricio
Published: March 2022

Este artículo propone ordenar el campo político argentino en torno a dos clivajes. El primero está representado por el clásico izquierda y derecha, el segundo por el peronismo y la posición antiperonista o “gorila”. Luego de una caracterización de los espacios ideológicos, usamos conceptos de la física (masa, fuerza y campo gravitacional) para analizar la dinámica de los partidos políticos hacia las elecciones presidenciales de 2019. El estudio de la dinámica tanto al interior de cada espacio como en la totalidad del campo político permite apreciar la frágil estabilidad alcanzada. Este ordenamiento es condición de posibilidad y efecto de las estrategias políticas y los resultados electorales.
Analysis of Collection Management Practices in Esa Unggul University Library
Authors: Nisa Andi Khaerun
Published: March 2022

The practices of collection management at the Esa Unggul University Library is still being distorted. There are several cases of collections that should have been weeded but still maintained which are the limitations of human resources to make the process to be inhibited and inefficient, budgeting, and space in the library so that the procurement of new bookshelves is still delusion. The data were obtained through observation, interview with librarians and from the official website of Esa Unggul University Library. The practices of collection management at Esa Unggul University Library, including: deselection, preservation and conservation, and storage. The deselection practice is scheduled every year. The preservation and conservation practices are carried out by termite and bookbinding methods on books, while for the electronic collections by duplicating files. Storage practices, Mezanin’s shelf as a special space for old and copied books.ABSTRAKPengelolaan koleksi di Perpustakaan Universitas Esa Unggul dalam praktiknya masih terjadi distorsi. Ada beberapa kasus koleksi yang seharusnya sudah disiangi namun tetap dipertahankan, keterbatasan SDM membuat prosesnya menjadi terhambat dan tidak efisien, dan karena keterbatasan anggaran dan ruang di perpustakaan sehingga pengadaan rak buku baru masih sebatas angan-angan. Data dikumpulkan melalui observasi, wawancara kepada pustakawan dan dari hasil studi dokumen pada website resmi Perpustakaan Universitas Esa Unggul. Praktik pengelolaan koleksi di Perpustakaan Universitas Esa Unggul, meliputi: praktik deseleksi, preservasi dan konservasi, dan storage. Praktik deseleksi dilakukan secara terjadwal yakni setiap tahun. Praktek preservasi dan konservasi dilakukan dengan metode umpan rayap dan penjilidan pada buku, sedangkan untuk koleksi elektronik dilakukan penggandaan file. Praktek storage, Rak Mezanin sebagai tempat penyimpanan khusus koleksi buku lama dan buku fotocopy.
Analysis of the Implementation INLISlite (Integrated Library System)
Authors: Yuniar Pira , Mathar Taufiq
Published: March 2022

Sistem otomasi perpustakaan telah banyak diterapkan di berbagai macam perpustakaan karena manfaatnya yang sangat besar. Dinas Perpustakaan dan Kearsipan (DPK) Kabupaten Bantaeng telah menggunakan INLISlite sejak tahun 2015 lalu. Penelitian deskriptif ini akan menggambarkan bagaimana penerapan dan hambatan yang dialami perpustakaan tersebut. Sumber data diperoleh dari hasil wawancara kepada pustakawan dan staf perpustakaan yang mengoperasikan INLISlite di perpustakaan tersebut. Data dianalisis dengan menggunakan teknik analisis data kualitatif; reduksi, display, verifikasi, dan kesimpulan. Hasil penelitian menunjukkan bahwa INLISlite di perpustakaan ini telah diterapkan dengan baik meskipun tetap menyisakan hambatan-hambatan yang cukup berarti. Penelitian ini dapat menjadi rujukan bagi perpustakaan lainnya yang telah menerapkan sistem otomasi perpustakaan.ABSTRACTLibrary automation systems have been widely implemented in various libraries because of its benefits. Dinas Perpustakaan dan Kearsipan (DPK) District of Bantaeng has been using INLISlite since 2015. This descriptive research will describe how the application and the obstacles experienced by the library. The sources of data were obtained through interviews with librarians and library staff who operate INLISlites in the library. The data were analyzed using qualitative data analysis techniques; reduction, display, verification, and conclusion. The results showed that INLISlite has been implemented well even though it still remains significant obstacles. This research can be a reference for other libraries that have implemented a library automation system or integrated library system
Gestão humanizada e capitalismo consciente
Authors: Baggio Daniel Knebel , Sausen Juliana da Fonseca Capssa Lima , Roveda Taísa Schéfer , Brizolla Maria Margarete Baccin
Published: March 2022

O cooperativismo é relevante para o desenvolvimento socioeconômico territorial. A gestão humanizada, por meio do movimento Capitalismo Consciente, constitui-se como diferencial valorativo e competitivo organizacional. Assim, este artigo propôs identificar as inter-relações, aplicações e contribuições da gestão humanizada quanto aos princípios e práticas cooperativistas, com foco no cooperativismo de crédito. Para tanto, utilizou-se pesquisa bibliográfica, pesquisa documental e entrevistas, a partir de estudo de caso em uma agência Sicredi, no Noroeste do Rio Grande do Sul. Identificou-se inter-relações das estratégias e práticas cooperativistas com os pilares da gestão humanizada, e proximidades destes pilares e das práticas evidenciadas com princípios cooperativistas. Conclui-se que a gestão humanizada tem significativa inter-relação com os princípios e práticas cooperativistas, contribuindo para o desenvolvimento da agência Sicredi do estudo, sua cooperativa e para o Sicredi, perante o mercado do cooperativismo e do cooperativismo de crédito, e a sociedade.
Palavras-chave: Gestão humanizada. Capitalismo Consciente. Cooperativismo.
The impact of urban expansion in Beijing and Metropolitan Area urban heat Island from 1999 to 2019
Authors: Yang Jinpei , Alahmadi Khaled Mohammad , Shirowzhan Sara
Published: March 2022

This article is a quantitative study of the urban expansion of Beijing in the past two decades and its impact on the city’s heat island effect. The overall idea of this paper is a ‘basic fact description to phenomenon and law reveal-basic cause analysis-mechanism analysis-model simulation’. In this paper, the effects of urbanisation on warming in Beijing are deduced by nonlinear fitting method. Based on Google Earth Engine remote sensing image data within Beijing Inner Sixth Ring Road and using ArcGIS to retrieve Beijing’s surface temperature, the heat island effect intensity index is calculated. This paper quantitatively analyses the temporal and spatial distribution characteristics and development trends of Beijing’s urban heat island effect, combined with land use cover change (LUCC), Land Surface Temperature (LST), Normalised difference Vegetation Index (NDVI), Normalised difference Building Index (NDBI), which can explore the impact of surface vegetation distribution and building density on the urban heat island effect.
Arabidopsis thaliana for Spaceflight Applications–Preparing Dormant Biology for Passive Stowage and On-Orbit Activation
Authors: Sng Natasha J. , Callaham Jordan , Ferl Robert J. , Paul Anna-Lisa
Published: March 2022

Biological experiments on-orbit that demonstrate the effects of gravity on plants require precise control of the initiation of plant development. Preserving seed dormancy is critical to experiments that endeavor to study the effects of the orbital environment, independent of contributions from either a normal gravity, or launch. However, spaceflight experiments are often tightly constrained with respect to the configuration of the biology and associated hardware, and it is rarely possible to launch dry seeds separated from their growth substrate. Described here are techniques established to maintain viable seeds that can remain dormant for up to a month at room temperature, and hydrated on the surface of solid, Phytagel growth medium. The configuration can also accommodate a brief (less than one minute) exposure to light during the quiescent period for quick inspection for any breaks in dormancy, and for contamination. The data presented outline the preparation of sealed, Phytagel media plates of dormant Arabidopsis thaliana seed that can be activated in situ when unwrapped and installed within a lighted growth habitat. These protocols were developed primarily for spaceflight scenarios where seeded plates must be prepared ahead of time and kept at ambient temperatures. However, these protocols can be adapted for any field application where it is desirable to transport dormant, seeded plates to a remote location where it would not be possible to prepare sterile culture plates.
Kontribusi Nilai Sejarah dan Budaya dalam Pengembangan Sumber Daya Manusia Menuju Pembangunan Daerah Maluku
Authors: Sahusilawane Florence
Published: March 2022

No Abstract
Sumberdaya Arkeologi Menuju Industri Pariwisata di Maluku: Masalah, Peluang, Tantangan dan Solusinya
Authors: Handoko Wuri
Published: March 2022

Wilayah Maluku memiliki konstribusi besar sebagai daerah yang banyak menyimpan sumberdaya warisan budaya (cultural heritage). Namun sejak terpecah menjadi dua provinsi, masing-masing mengejar PAD, yang kemudian terkesan menelantarkan potensi sumber daya budaya tersebut. Besarnya potensi sumberdaya budaya dan arkeologi itu sesungguhnya dapat dikembangkan menjadi obyek industry pariwisata. Namun hal ini perlu dilakukan melalui perencanaan yang matang yang diawali dengan menjaring aspirasi dari bawah (bottom up). Hal ini untuk memperoleh dukungan kolektif public, sebagai salah satu syarat agar industri pariwisata dapat berkembang. Bagaimanapun masyarakat sangat berhak, mengingat sumberdaya arkeologi justru banyak dijumpai diwilayah pemukiman masyarakat setempat. Namun demikian untuk mengembangkan sebuah industry wisata, perlu dilakukan melalui berbagai upaya skala prioritas mengingat Maluku  masih dalam proses pemulihan sosial.
Aktualisasi Nilai-Nilai Budaya Tradisional dalam Pengembangan Pariwisata di Daerah Maluku
Authors: Sahusilawane Florence
Published: March 2022

No Abstract
Peran Lembaga Kebudayaan Daerah Maluku (Lkdm) dalam Mengaktualisasikan Kearifan Lokal Dalam Pengembangan Budaya di Maluku dan Sumber Daya Budaya dalam Upaya Peningkatan Kualitas Sumber Daya Manusia
Authors: Sihasale W.R.
Published: March 2022

No Abstract
Lingkungan Alam dan Pertumbuhan Budaya Buleleng
Authors: Kusumawati Ayu
Published: March 2022

No Abstract
Kerajaan Sahulau: Melacak Fragmen Sejarah Yang Hilang, Potret Sejarah, Tutur dan Arkeologi
Authors: Sudarmika G.M. , Handoko Wuri
Published: March 2022

One of countryside in middle Regency Maluku region, trusted by Moluccassociety as a empire secondhand in old world. That countryside is so called of Countryside Sahulau. In a few history note and say society, mentioning this empire represent big empire founded by somebody coming from so called Buton of La Ode Muna. This Figure is myth as a miraculous but his body is not perfect, his body human being like snake. History note mention this empire fall to pieces in the year 1858 when a period of/to Dutch occupying. But regional previously this represent a empire region of a period of Islam and Colonial. If previously assumed this empire have annihilate and nothing; there is no existence marking and also considered to be a missing history, hence archaeology mean to try to attend something that have disappeared the. Pursuant to archaeology data, there are some indication that Sahulau is true aim to secondhand a empire of a period of/to Colonial and Islam. Some foreign ceramic evidence, walk stick Sahulau supported by area sites, environmental condition and the social face of society culture which look cultural growth of old world life which still hold out. Small tread of archaeology though still very the and need continuation data minim, but can early making way to tread empire Sahulau history therewith [his/its] cultural dynamic.
Potensi Sumberdaya Arkeologi Pulau Saparua, Maluku Tengah
Authors: Suantika I Wayan
Published: March 2022

No Abstract
Akukturasi Budaya Austronesia, Tinjauan pada Tempayan Kubur di Wilayah Sumatera Bagian Selatan
Authors: Indriastuti Kristantina
Published: March 2022

No Abstract
Kajian Historis tentang Sistem Perdagangan di Maluku Tengah pada Abad ke-19
Authors: Huwae Andrew
Published: March 2022

No Abstract
Fungsi Perahu dalam Kehidupan Masyarakat Waropen
Authors: Maryone Rini
Published: March 2022

No Abstract
Masa Surut Perdagangan Rempah-rempah Maluku
Authors: Suroto Hari
Published: March 2022

No Abstract
Tinggalan Megalitik sebagai Media Religi di Pura Luhur Muncak Sari Dusun Anyar, Desa Sangketan, Penebel, Tabanan Bali: Tinjauan Sosiofak dan Orientasi Lingkungan
Authors: Surbakti Karyamantha
Published: March 2022

No Abstract
Pelestarian dan Pemanfaatan Kuburan Batu Waruga di Kabupaten Minahasa Utara
Authors: Marzuki Irfanuddin W.
Published: March 2022

No Abstract
Tradisi Penggunaan Dolmen di Situs Batu Berak, Desa Purawiwitan Kecamatan Sumberjaya, Kabupaten Lampung Barat (Kajian Fungsi dan Faktor-Faktor yang Mempengaruhi Pendirian Dolmen)
Authors: Surbakti Karyamantha
Published: March 2022

No Abstract
Tayangan Arkeologi di Televisi: Catatan Ringan tentang Sebuah Peluang
Authors: Ririmasse Marlon NR
Published: March 2022

Fenomena selama dekade terakhir menunjukan kecenderungan meningkatnya tayangan bertema arkeologi pada televisi nasional dan lokal di Indonesia. Meskipun kuantitas dan kualitasnya masih jauh dibanding tayangan sejenis di kanal-kanal internasional, kemajuan ini perlu direspon secara positif. Tulisan ini mencoba mengulas fenomena ini sebagai sebuah peluang bagi pengembangan studi arkeologi di Indonesia.
Türkiye İşgücü Piyasasında Düşük Ücret Kalıcılığı
Authors: GEMİCİOĞLU Selçuk , ŞAHİN Hasan
Published: March 2022

Düşük ücretli istihdam hem gelişmiş hem de gelişmekte olan ülkelerin işgücü piyasasında yaygın bir şekilde görülen bir istihdam türüdür. Düşük ücretli istihdamın ortaya çıkmasının nedenlerinden biri düşük ücret kalıcılığıdır. Bu çalışmanın amacı Türkiye işgücü piyasasında düşük ücret kalıcılığının olup olmadığını ve düşük ücret kalıcılığının nedenlerini araştırmaktır. Düşük ücret kalıcılığı, Gelir ve Yaşam Koşulları Araştırması’ndan (GYKA) elde edilen 2013-2016 dönemine ait panel veriler kullanılarak başlangıç koşulları problemini dikkate alan örnek seçiminin olduğu içsel iki değişkenli probit modeli ile analiz edilmiştir. Ulaşılan sonuçlar başlangıç koşullarının göz önünde bulundurulması gerektiğini, Türkiye işgücü piyasasında düşük ücret kalıcılığının olduğunu ve bu kalıcılığın önemli bir kısmının gerçek duruma bağımlılıktan kaynaklandığını göstermiştir. Buna ilaveten düşük ücret kalıcılığının geriye kalan kısmının cinsiyet, eğitim seviyesi, vasıf ve firma büyüklüğü gibi gözlenen heterojenlik tarafından açıklanabildiği ortaya çıkmıştır.
Distribución de Haplaxius crudus (van Duzee, 1907) (Hemiptera: Cixiidae), en las zonas de palma de aceite en Colombia
Authors: Castillo-Villarraga Natalia Julieth , Bustillo- Pardey Alex Enrique , MOrales-Rodríguez Anuar
Published: March 2022

La marchitez letal (ML) es una enfermedad de importancia económica de la palma de aceite Elaeis guineensis Jacq., 1897 (Arecales: Arecaceae) en Colombia que ha alcanzado niveles epidémicos en la Zona Oriental palmera, en donde se han registrado 902.529 casos entre 1997 y 2018. El insecto vector de la ML posiblemente es el salta hojas de la palma Haplaxius crudus. El objetivo de este estudio fue obtener información sobre la presencia y distribución de H. crudus en las zonas palmeras de Colombia, para lo cual se adelantó una prospección en estas zonas, a través de jameos al follaje de la palma en búsqueda de adultos, y revisando gramíneas y ciperáceas hospederas de las ninfas. Los resultados indican que el insecto está presente en 163 plantaciones de palma de aceite, ubicadas en 42 municipios palmeros distribuidos en las Zonas Palmeras Norte, Central y Oriental de Colombia. Se concluye que la presencia de este insecto es más amplia de lo que se había registrado inicialmente; este trabajo aporta información importante al sector palmero, ya que permite estar alerta sobre la posible diseminación de la ML, una vez que se detecte una palma enferma, en zonas libres de esta enfermedad.
Surface Clutter Reduction for Ground Penetrating Radar
Authors: Ramadhamy Queen Hesti , Ali Erfansyah , Pramudita Aloysius Adya
Published: March 2022

Surface clutter is one of the problem in GPR survey that may caused the difficulty in detecting object. The rough of the ground surface caused the surface clutter is a method for reducing the clutter is need to improved the detection result. One of method is used to achieve that objective is averaging method. In this experiment, GPR system is modelled using VNA and the averaging method is resulting on target object detection which is recognized more clearly.
IMPROVING THE QUALITY OF MODELING THERMODYNAMIC PROCESSES
Authors:   Omsk State Technical University, Omsk, Russia, Brazhnikova K. A.
Published: March 2022

На примере моделирования термодинамических процессов, происходящих в бортовой системе газификации (БСГ) невырабатываемых остатков жидкого топлива в баках ступени ракеты-носителя (РН), с использованием уменьшенной физической модели топливного бака - экспериментальная модельная установка (ЭМУ) в составе экспериментального стенда (ЭС), проектно-конструкторские параметров которой определяются (геометрические параметры, теплоноситель и характеристики модельной жидкости) на основе теории подобия теплофизических процессов, протекающих в реальной конструкции топливного бака ступени РН по критериям Рейнольдса, Нуссельта, Прандтля , предлагаются методические рекомендации по улучшению качества процесса теоретико-экспериментальных исследований на этапе научно-исследовательских работ (НИР).
DETERMINATION OF THE THRUST OF AN ION THRUSTER BY THE AERODYNAMIC METHOD OF DOUBLE ANGLE (AMαß-METHOD)
Authors:   Omsk State Technical University, Omsk, Russia, Vavilov I. S. , Yachmenev P. C. ,   Omsk State Technical University, Omsk, Russia, Zharikov K. I. ,   Omsk State Technical University, Omsk, Russia, Fedyanin V. V. ,   Omsk State Technical University, Omsk, Russia, Stepen P. V. ,   Omsk State Technical University, Omsk, Russia, Lukyanchik A. I. ,   Omsk State Technical University, Omsk, Russia
Published: March 2022

В данной работе представлены результаты экспериментального исследования реактивной тяги смешанной струи нейтрального и ионизированного азота, истекающего из рабочей камеры экспериментального образца ускорительного ионного двигателя в вакуумное пространство. Основным методом исследования был выбран аэродинамический метод двойного угла (АМαß-метод). Предложена методика определения малых тяг и конструкция стенда реализации АМαß-метода. Объектом исследования является прототип ускорительного двухзазорного ионного двигателя с твердотельным СВЧ- генератором плазмы и тороидальным резонатором. Исследование показало, что СВЧ-генератор мощностью 2.5 Вт совместно с источником напряжения ускоряющей разности потенциалов мощностью 2.5 Вт при расходе азота 0.05 -1 мг/с может повысить скорость рабочего газа в 2.3 раза. Реактивная тяга, согласно результатам испытаний, составила 1-3.6 мкН. Показано, что компоненты тяги (газодинамическая составляющая, ионная составляющая высокочастотного разряда, ионная составляющая тлеющего разряда) имеют различные уровни в зависимости от массового расхода газа.
EXPERIMENTAL STUDIES OF THERMODYNAMIC COMBUSTION PROCESSES OF COMBUSTIBLE DEMONSTRATORS
Authors:   Omsk State Technical University, Omsk, Russia, Iordan Yu. V.
Published: March 2022

Приведено описание экспериментальных стендов для сжигания демонстрационных элементов образцов материалов - сжигаемых демонстраторов (СД). Разработаны СД для исследования термодинамических процессов при сжигании на экспериментальных стендах. Представлены результаты экспериментальных исследований сжигания СД, изготовленных из различных материалов (существующих и синтезированных). Сформулировано новое направление исследований - разработка сжигаемых материалов и конструкций из них, обеспечивающих заданные характеристики на всех этапах эксплуатации.
Desmoplastic Malignant Melanoma Clinically Presenting as a “Cyst”
Authors: Heibel Haley Danielle , Burger Robin , Cockerell Clay
Published: March 2022

Abstract not available.
31-Gene Expression Profile Testing Survival Benefit in a Population-based Analysis of Cutaneous Melanoma Patients ≥65 Years of Age
Authors: Bailey Christine , Martin Brian , Petkov Valentina , Siegel Jennifer , Kurley Sarah , Covington Kyle
Published: March 2022

N/A
Calcipotriene And Betamethasone Dipropionate Cream Demonstrates High Treatment Success In Patients With Scalp Psoriasis
Authors: Pinter Andreas , Præstegaard Morten , Selmer Johan , Reich Adam
Published: March 2022

N/A
Rare case of migration and perforation of the urinary bladder by ventriculoperitoneal shunt catheter with intravesical knotted formation: A case report and literature review
Authors: Guimarães Amanda Silva , Vaz Júnior Mário , Martins Samuel Paiva , Fagundes-Pereyra Walter J.
Published: March 2022

Background:

The most commonly used technique in the management of hydrocephalus is a neurosurgical procedure, known as ventriculoperitoneal shunt (VPS). Several complications of the distal end of a VPS catheter have been described in the literature, although migration and erosive bladder perforation of this shunt are extremely uncommon.

Case Description:

We relate a rare pediatric case of a 4-year-old boy, with long-term dysuria, intermittent incontinence, and chronic abdominal pain developed during a myelomeningocele postoperative period, without other symptoms. A bladder fistula with the distal end of the VPS inside the bladder was observed while performing an ultrasound to investigate the urinary tract. Two months before the current surgical approach, the patient, with hydrocephalus and alterations compatible with Chiari malformation, was treated with VPS and subsequently subjected to the third ventriculostomy. The child was unsuccessfully treated with an infraumbilical laparotomy, with section and careful traction of the catheter. A vesicostomy was then performed and the catheter was observed to form an intravesical knot.

Conclusion:

The intravesical knot formation is extremely rare and its mechanism of formation is still not well understood. Patients with VPS need adequate medical follow-up to identify possible complications of the shunt.
Künstliche Intelligenz in der Hochschullehre: Empirische Untersuchungen zur KI-Akzeptanz von Studierenden an (sächsischen) Hochschulen
Authors:   TU Dresden, Zentrum für Qualitätsanalyse/ Kompetenzzentrum für Bildungs- und Hochschulforschung (ZQA/KfBH), Stützer Cathleen M.
Published: March 2022

The extent to which AI can effectively accompany new types of university teaching and learning is being investigated in the BMBF joint project 'tech4comp: Personalised competence development through scalable mentoring processes'. Together, they are researching socio-technical artefacts for personalised digitally-supported mentoring for students. For this purpose, framework conditions and (social) contextual factors, among others, are being researched in order to support the implementation of AI in higher education. It is assumed that regardless of the type of technology and the pandemic context, the acceptance and willingness of the stakeholders involved in particular contributes to the successful use of intelligent educational technologies. Under the direction of Dr. Cathleen M. Stützer, the ZQA/KfBH at TU Dresden is dedicated to the elaboration of fields of action resulting from socio-technical research on AI in higher education. Case studies on this topic address questions such as the conditions for success and the effectiveness of digital higher education in order to (prospectively) support the successful implementation of AI-supported adaptive mentoring systems with evident research reports.
SARS-Cov-2 Infection after Vaccination in Health Care Workers-Moffitt Cancer Center, Florida
Authors:   H.Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA, N Chaudhary , JN Greene ,   Infectious Disease and Hospital Epidemiologist, H.Lee Moffitt Cancer Center and Research Institute Tampa, Florida, USA
Published: March 2022

In April 2020, the United States established Operation Warp speed to develop a Corona Virus Disease 2019 (COVID-19) vaccine and produce 300 million doses by January 2021. History suggest that the initiative is aptly named as Barney S. Graham notes, “Vaccine development is usually measured in decades, so having access to approved vaccines available for large scale distribution before the end of 2020 or even 2021 would be unprecedented. Emergency use of authorization for two Messenger RNA (m-RNA) vaccine-the BNT162b2 vaccine (Pfizer-BioNTech) and the mRNA-173 vaccine (Moderna) Marked important milestones in efforts to respond to the corona virus disease pandemic. The effect of vaccination on the preservation of the workforce has also been noticed.6Prospective cohorts of health care personnel first responder, and other essential and frontline worker over 13 weeks in eight U.S. location confirmed that authorized mRNA COVID-19 vaccines (Pfizer-BioNTech’s BNT162b2 and moderna’s mRNA-1273) are highly effective in real world conditions [7].
Predicting Solubility Limits of Organic Solutes for a Wide Range of Solvents and Temperatures
Authors: Vermeire Florence , Chung Yunsie , Green William
Published: March 2022

The solubility of organic molecules is crucial in organic synthesis and industrial chemistry, it is important in the design of many phase separation and purification units, and it controls the migration of many species into the environment. Solubility limits force chemists and engineers to change the solvent or adjust the temperature of their process, often by trial and error. Here we present a fast and convenient computational method for estimating the solubility of any neutral organic molecule in water and any organic solvent at any temperature. The model is developed by combining fundamental thermodynamic equations with machine learning models for solvation free energy, solvation enthalpy, Abraham solute parameters, and aqueous solubility at 298K. We provide free open-source and online tools for the prediction of solubility limits and a curated data collection (SolProp) that includes more than 5,000 experimental solubility values for validation of the model. The model predictions are accurate for aqueous systems and for a huge range of organic solvents up to 550K or higher. Methods to further improve solubility predictions by providing experimental data on the solute of interest in any solvent at any temperature, or on the solute’s sublimation enthalpy, are also presented.
Investigating educators’ perspectives towards systems thinking in chemistry education from international contexts
Authors: Szozda Alisha R. , Bruyere Kathryn , Lee Hayley , Mahaffy Peter G. , Flynn Alison B.
Published: March 2022

Systems thinking in chemistry education (STICE) has been proposed as an approach that could better equip students with abilities to connect their chemistry knowledge with other disciplines, with the skills needed to tackle complex global issues. However, educational change in chemistry is a complex effort that involves many interconnected factors that enable or hinder chemistry educators’ adoption of new pedagogical approaches. Using an adapted version of the Teacher-Centered Systemic Reform (TCSR) model, we investigated factors that connect with chemistry educators’ willingness and ability to implement a STICE approach in their courses. We surveyed a group of 56 secondary and post-secondary chemistry educators from ten different countries, to capture chemistry educators’ perspectives towards a STICE approach. Through thematic analysis of responses, we found that educators’ willingness and ability to implement STICE is influenced by their knowledge, beliefs, experiences, contextual and personal factors. We discuss specific aspects of the reform model that experts and administrators can address to reduce barriers to implement and engage with STICE. We also highlight future chemistry education research that is needed to explore specific aspects of educators’ perspectives and STICE more broadly.
Development and Pre-Clinical Evaluation of Polyherbal Hand Wash
Authors: Prakash Gnana
Published: March 2022

Hand-washing is significant in agriculture, housekeeping, and in addition vital in houses and daycare plans. The artificial handwash formulations an effort antiquated entice formulate a polyherbal hand wash victimization extract of Sida cardifolia, Azadirachta indica, aloe vera gel, and lemon juice. The pH of hand wash was ranging from 6.36 to 6.88. The handwash formulations were ranges from 56 cp to 62 cp. The formulation planned out along with lemon juice displayed the best antimicrobial utilization than the formulation while not lemon juice. The stableness reports no change in pH & Viscosity referred to in the formulations. The effects of the present work support the internalization as well as utilization of herbs in the formulation to help give better results.
EFFECT OF FREE VALENCE ON THE ELECTRON DENSITY DISTRIBUTION IN A BENZENE RING
Authors: Чернова Елена Михайловна , Русакова Наталья Петровна , Мирошниченко Евгений Александрович , Орлов Юрий Димитриевич
Published: March 2022

Методом DFT B3LYP 6-311++G(3df,3pd) найдено распределение электронной плотности бензола и фенил-радикала. В рамках квантовой теории атомов в молекуле (QTAIM) проведено исследование влияния свободной валентности на структуру бензольного кольца.

The electron density of benzene and phenyl-radical were found by DFT B3LYP 6-311++G(3df,3pd) method. Within the framework of the quantum theory of atoms in a molecule (QTAIM), the effect of free valence on the structure of a benzene ring has been studied.
SUPRAMOLECULAR HYDROGELS BASED ON AMINO ACID L-CYSTEINE, SILVER NITRATE AND CHITOSAN
Authors: Зеников Герман Романович , Хижняк Светлана Дмитриевна , Пахомов Павел Михайлович
Published: March 2022

Получены гидрогели на основе L-цистеин-серебряного раствора (ЦСР), имеющего супрамолекулярную природу, и низкомолекулярного водорастворимого хитозана (ХЗ). С помощью физико-химических методов (вискозиметрия, УФ спектроскопия, динамическое светорассеяние, просвечивающая электронная микроскопия) исследованы прочностные и структурные характеристики гидрогелей различного композиционного состава: ЦСР/ХЗ и ЦСР/NaSO/ХЗ. Установлено, что под влиянием ХЗ изменяется электронная конфигурация супрамолекулярных кластерных цепочек ЦСР, состоящих из цвиттер-ионов меркаптида серебра, и размер формирующихся в растворе агрегатов. Обнаружено, что добавление сульфата натрия к ЦСР/ХЗ системе не способствует упрочнению гидрогелей, а наоборот делает их менее стабильными во времени.

Novel hydrogels based on L-cysteine-silver solution, (CSS), having supramolecular nature, and low molecular weight water soluble chitosan (CS) are obtained. Hardness and structural properties of the hydrogels of various composition (CSS/CS and CSS/NaSO/CS) are studied by physicochemical techniques (viscometry, UV spectroscopy, dynamic light scattering, transition electron microscopy). It is established that electron configuration of supramolecular cluster chains in CSS, consisting of silver mercaptide zwitter-ions, and size of aggregates forming in the system, are changed slightly under the influence of CS. It is found out also that an addition of sodium sulphate into CSS/CS systems doesn’t increase hydrogel hardness, but otherwise decrease their stability over time.
ULTRASONIC EXTRACTION OF PROTEIN COMPLEXES FROM SEEDS OF LEGUME CROPS
Authors: Ожимкова Елена Владимировна , Орлов Владимир Владимирович
Published: March 2022

В настоящее время все более актуальной задачей становится разработка и внедрение эффективных технологий переработки растительного сырья. Ультразвуковую экстракцию рассматривают как перспективный метод получения разнообразных биологически активных веществ из растительного материала. Однако, несмотря на большое разнообразие доказательств эффективности использования ультразвукового воздействия для интенсификации экстракционных процессов и большой потенциал применения данного метода в промышленности, актуальными являются научные исследования, позволяющие разрабатывать эффективные ресурсосберегающие методики получения различных классов биологически активных веществ из конкретного растительного сырья. В данной работе экспериментально подобраны условия ультразвукового воздействия, обеспечивающие максимальный выход белковых комплексов из семян бобовых культур.

In recent years, the development and implementation of effective technologies for processing plant raw materials has become an increasingly urgent task. Ultrasonic extraction is considered as a promising method for obtaining a variety of biologically active substances from plant material. However, despite the wide variety of evidence of the effectiveness of the use of ultrasonic exposure to intensify extraction processes and the wide potential for the application of this method in industry, scientific research is relevant, allowing the development of effective resource-saving methods for obtaining various classes of biologically active substances from specific plant raw materials. In this work, the conditions of ultrasonic exposure have been experimentally selected to ensure the maximum yield of protein complexes from legume seeds.
RUSSIAN EMPIRE AS AN OBJECT OF COMMEMORATION IN THE MEMORIES OF FOREIGNERS SECOND HALF OF THE XVIII CENTURY
Authors: Кокорина Галина Алексеевна
Published: March 2022

В статье анализируются источники личного происхождения иностранцев, находившихся на территории Российской империи во второй половине XVIII в. Рассматриваются различные формы источников личного происхождения: дневники, воспоминания, записки, личные письма. Изучается содержательная часть источников личного происхождения. На основе мемуарных данных автор выявляет основные моменты, связанные с формированием образа Российской империи. Автор приходит к выводу, что воспоминания, представленные в текстах, позволяют увидеть зависимость влияния различных факторов на формирование облика государства. Даётся небольшой историографический обзор. Автор использовал комплексный подход, позволивший рассматривать роль памяти в контексте коммеморативных практик в источниках личного происхождения. Исследователь приходит к выводу, что образ России является связующим элементом между иностранцами, которые были в Российской империи во второй половине XVIII в.

The article analyzes the sources of the personal origin of foreigners who were on the territory of the Russian Empire in the second half of the 18th century. Various forms of sources of personal origin are considered: diaries, memoirs, notes, personal letters. The content of the sources of personal origin is being studied. On the basis of memoir data, the author identifies the main points associated with the formation of the image of the Russian Empire. The author comes to the conclusion that the memories presented in the texts make it possible to see the dependence of the influence of various factors on the formation of the state's image. A small historiographic overview is given. The author used an integrated approach, which made it possible to consider the role of memory in the context of commemorative practices in sources of personal origin. The researcher comes to the conclusion that the image of Russia is a connecting element between foreigners who were in the Russian Empire in the second half of the 18th century.
THE HISTORY OF THE FESTIVAL OF AMATEUR ARTISTIC CREATIVITY «STUDENT SPRING» OF THE KALININ STATE UNIVERSITY IN THE 1980S
Authors: Воробьёв Дмитрий Николаевич
Published: March 2022

В статье показано влияние городского межвузовского фестиваля на проведение в КГУ конкурса «Студенческая весна», которое привело в первой половине 1980-х гг. к более строгому административному контролю и активному привлечению профессиональных специалистов. Благодаря этим мерам в университете увеличилось количество постоянно действующих творческих коллективов. Несмотря на достигнутые успехи в культурно-массовой работе вуза, на факультетах росло недовольство новыми порядками и становилось всё больше сторонников «студенчества» в художественной самодеятельности. Серьёзное влияние на фестиваль «Студенческая весна» во второй половине 1980-х гг. оказали происходящие в стране события. Они способствовали ослаблению административного контроля за художественной самодеятельностью вуза и у студентов появилось больше свободы для самовыражения.

The article continues the study of the history of the annual festival of amateur artistic creativity «Student Spring» at Kalinin State University, which was started in the last issue. The influence of the city interuniversity festival on the competition at KSU, which led to stricter administrative control and active involvement of professional specialists in the first half of the 1980s, is shown. Thanks to these measures, the number of permanent creative teams at the university has increased. Despite the successes achieved in the cultural and mass work of the university, dissatisfaction with the new orders grew at the faculties and there were more and more supporters of «students» in amateur art. The events taking place in the country had a serious impact on the Student Spring festival in the second half of the 1980s. They contributed to the weakening of administrative control over the amateur artistic activity of the university and students had more freedom for self-expression.
Boas práticas de manipulação em serviços de alimentação no município de Santa Rosa - RS
Authors: Silva Lachno Andressa , Hermanns Gislaine , Dos Santos Oliveira Melissa , Abentroth Klaic Paula Michele
Published: March 2022

A segurança higiênico-sanitária dos locais e dos produtos oferecidos nos estabelecimentos alimentícios é uma preocupação dos órgãos públicos. A fim de garantir a segurança dos alimentos aos consumidores, no Rio Grande do Sul, em 2009, a Secretaria Estadual de Saúde (SES/RS) desenvolveu um checklist para verificação da adoção das boas práticas em serviços de alimentação. Assim, o objetivo deste estudo foi verificar a adoção e adequação das BPM — Boas Práticas de Manipulação — em estabelecimentos manipuladores de alimentos, no município de Santa Rosa - RS. Foi realizado um estudo transversal de caráter descritivo e exploratório, em que foram levantadas as conformidades e não conformidades, em relação às BPM de alimentos, nesses locais. A coleta de dados se deu por meio da aplicação do checklist anexo à Portaria Nº 078/2009 da SES/RS. Foram avaliados doze estabelecimentos, classificados como serviços de alimentação, entre os quais sete restaurantes, três pizzarias e dois bares, no primeiro semestre de 2019. Apenas 56,8% dos itens analisados se mostraram em conformidade com a legislação. O maior percentual de conformidades observado (90,5%) estava relacionado ao controle integrado de pragas; o menor (6,3%), ao item “documentação e registros”. Os resultados do estudo apontaram para um alto percentual de BPM não atendidas, o que pode possibilitar riscos à saúde dos consumidores. O não atendimento às normas estabelecidas na legislação contribui para uma baixa qualidade higiênico-sanitária dos alimentos produzidos, sugerindo-se, portanto, que os estabelecimentos invistam em treinamentos e medidas para a correção dessas não conformidades.