bluuebunny/crossref_metadata_2025 huggingface dataset:
Oferta y demanda y el ciclo económico: una interpretación de la situación económica actual
Authors: García Lizana Antonio
Published: November 2021

Tomando como punto de partida las dificultades económicas actuales, se pretende, siguiendo el modelo cíclico de Ibn Jaldún, una aproximación a las oscilaciones de la actividad económica teniendo en cuenta simultáneamente los lados de la oferta y de la demanda, entendiendo que el protagonismo de uno y otro lado puede modificarse en el tiempo, o que los dos pueden actuar simultáneamente, como sería el caso en la situación económica actual a juzgar por los síntomas observados. Asimismo, se llama la atención sobre la complejidad existente en la práctica, si se tiene en cuenta la riqueza de las motivaciones humanas, frente al carácter unidimensional del homo oeconomicus smithiano, a partir del cual se han elaborado nuestras concepciones económicas.
Evaluación del coste por pérdida de jornadas laborales asociado al estrés laboral: propuesta para España
Authors: HernandezGamero-Burón Carlos
Published: November 2021

Este artículo presenta una evaluación para España del coste que conlleva la existencia de entornos laborales estresantes. Nuestra investigación se centra en una de las partidas de coste asociadas al estrés: la pérdida de jornadas de trabajo. Se usan varias encuestas nacionales (ISSP y ECVT) para, en primer lugar, estimar modelos econométricos que permiten cuantificar el comportamiento diferencial de los asalariados estresados frente a las ausencias laborales. En segundo lugar, se traducen tales diferencias detectadas en términos monetarios, aprovechando para ello la representatividad a nivel nacional de las muestras utilizadas. Entre otros hallazgos, las estimaciones sitúan la factura por jornadas laborales perdidas atribuible al estrés laboral en el año 2004 en el 0,11% del PIB español. Sin duda alguna, un país como España, que afronta en estos momentos déficits de productividad significativos respecto a los países de su entorno, no puede permitirse contribuciones negativas de tal índole.
Capital humano y turismo: Rendimiento educativo, desajuste y satisfacción laboral
Authors: Lillo-Bañuls Adelaida , Casado-Díaz José Manuel
Published: November 2021

El capital humano es un elemento clave para el logro de objetivos en términos de competitividad y crecimiento del sector de turismo en España. En este trabajo se utilizan datos muy recientes (procedentes de la Encuesta de Calidad de Vida en el Trabajo, ECVT) para abordar tres aspectos fundamentales en su análisis: el rendimiento educativo que los trabajadores obtienen a cambio de la inversión que realizan en su formación reglada; la medición de los niveles de desajuste entre dicha formación y los puestos de trabajo que ocupan, y su relación con el salario; y, por último, el análisis de diversas dimensiones de la satisfacción laboral y de la relación que se establece entre ellas y la sobre-educación de los trabajadores.
El efecto de la participación en actividades de ocio sobre la influencia de la distancia en la elección de destinos
Authors: Nicolau Juan Luis
Published: November 2021

En la elección de destinos, la distancia presenta un efecto negativo debido al esfuerzo que supone desplazarse y a que generalmente implica mayores costes. Este artículo analiza si los individuos están dispuestos a recorrer mayores distancias para ir a un destino en el que pueden practicar, por ejemplo, actividades de ocio distintas a las que hacen el resto del año, o aumentar la frecuencia de sus actividades preferidas. La idea es que la sensibilidad a la distancia está influenciada a la hora de elegir un destino por la motivación de búsqueda de destinos que poseen determinadas actividades de ocio disponibles.
¿Hay relación entre los estilos educativos de las madres y la inteligencia emocional de los hijos?
Authors: Alegre Albert
Published: November 2021

Introducción. En el campo académico, la inteligencia emocional ha sido propuesta como una facultad humana que puede tener un fuerte impacto en diferentes componentes del desarrollo de los niños tales como el rendimiento escolar, la influencia de los amigos, y el ajuste de conducta. En el mismo campo académico, se ha propuesto también que la labor educativa de los padres puede influir en el desarrollo de la inteligencia emocional de sus hijos. Sin embargo, estas propuestas prácticamente no han sido investigadas.Método. Este estudio investiga la relación entre la labor educativa de las madres y la inteligencia emocional de los hijos. Se ha desarrollado en dos fases. En la fase 1 se han examinado dos grupos de conductas educativas de las madres - positivas y negativas - y su relación con la inteligencia emocional de los hijos. En la fase 2 se han investigado los estilos educativos de los padres: democrático, autoritario, permisivo, y no-implicado. Los datos han sido recogidos a través de las respuestas de las madres y los hijos a una batería de cuestionarios.Resultados. En la fase 1, no se obtuvieron correlaciones entre la inteligencia emocional de los niños y las conductas educativas de las madres: positivas y negativas. En la fase 2, el análisis de varianza ANOVA no mostró diferencias significativas en la inteligencia emocional de rasgo de los niños entre los cuatro estilos educativos de las madres.Discusión y Conclusión. Estos resultados, unidos a la revisión de la literatura, sugieren que la inteligencia emocional de rasgo de los niños está más influenciada por estrategias educativas específicamente relacionadas con emociones concretas que por los estilos educativos de las madres
The Influence of Parents and Teachers on the Deep Learning Approach of Pupils in Norwegian Upper-Secondary Schools
Authors: Elstad Eyvind , Christophersen Knut-Andreas , Turmo Are
Published: November 2021

Introduction. The purpose of this article was to explore the influence of parents and teachers on the deep learning approach of pupils by estimating the strength of the relationships between these factors and the motivation, volition and deep learning approach of Norwegian 16-year-olds.Method. Structural equation modeling for cross-sectional survey data was used to estimate the path coefficients. A total of 1,112 students voluntarily participated. The analysis indicated that the teachers’ perceived efforts to influence and stimulate the deep learning approach of the pupils had some effect.Results. Parental efforts in this respect did not appear to have any noticeable influence on the pupils’ motivation, volition or deep learning approach. Teacher pressure was found to influence the motivation and deep learning approach, and teachers can make conscious use of this effect in order to improve the students’ performance.Conclusion. For pupils who lack educational motivation, the teacher has an important function in motivating greater effort with schoolwork and stimulating a more effective deep learning approach. The current study provides new knowledge concerning the influence of teachers and parents on students’ learning efforts.
El currículum oculto visual en los libros de texto de Educación Física: Una revisión sistemática
Authors: Moya-Mata Irene , Riera Faus Roberto
Published: November 2021

El presente estudio tiene como objetivo principal revisar las diferentes investigaciones relacionadas con el análisis de las imágenes de los libros de texto de Educación Física (EF) en la enseñanza obligatoria del sistema educativo español, en el período que comprende las leyes educativas de la Ley Orgánica 1/1990 de Ordenación General del Sistema Educativo (LOGSE), la Ley Orgánica 2/2006 de Educación (LOE) y la Ley Orgánica 8/2013 para la Mejora de la Calidad Educativa (LOMCE). Para ello se realizó una búsqueda sistemática siguiendo las pautas de PRISMA en las bases de datos de Dialnet, Google Scholar, Redalyc, Scielo, Scopus y Web of Science, seleccionando 20 artículos de 253 encontrados inicialmente, que cumplían con los requisitos de inclusión y de exclusión relacionados con  el análisis de las imágenes y estereotipos de género, raza, edad y/o discapacidad en función de la actividad física representada en dichos materiales curriculares, y su influencia en el currículum oculto. Los resultados mostraron que los libros de texto de EF en la enseñanza obligatoria española continúan transmitiendo un mensaje estereotipado en el que prevalece la representación del sexo masculino, joven, de raza blanca y sin discapacidad, además de una deportivización del currículum, en entornos competitivos y con un enfoque elitista. Se hace necesario, que tanto las editoriales como el profesorado adopten una actitud crítica, reflexiva, activa y responsable en cuanto a la elección y uso de este material curricular, para no continuar reproduciendo creencias, prejuicios y estereotipos en el alumnado perteneciente al sistema educativo español.
Model Pengambilan Keputusan Pemilihan Bibit Unggul Sapi Bali Menggunakan Metode Weighted Product
Authors: Khairina Dyna Marisa , Pramukti Indra Cahya , Hatta Heliza Rahmania , Maharani Septya
Published: November 2021

Kesulitan dalam mencari bibit unggul pada ternak sapi bali, menyebabkan bibit unggul yang terpilih semakin tidak produktif dalam hal penggemukan ternak. Penentuan bibit unggul pada ternak sapi bali merupakan hal yang sangat krusial bagi para pengambil keputusan yang terkait dalam hal ini adalah peternak sapi bali. Jika tidak dilakukan secara tepat dan akurat, maka pemilihan bibit unggul  pada sapi bali yang keliru seringkali mengakibatkan berbagai permasalahan. Model pengambilan keputusan dapat digunakan untuk membantu manusia khususnya peternak sapi dalam mengambil keputusan. Metode Weighted Product adalah metode yang sangat efektif dan efisien dalam pemilihan bibit unggul, karena waktu yang diperlukan untuk perhitungan jauh lebih singkat. Tujuan penelitian ini adalah membuat suatu model pengambilan keputusan untuk pemilihan bibit unggul terbaik pada ternak sapi bali. Adapun model pengambilan keputusan ini membantu memberikan rekomendasi kepada peternak dalam proses pemilihan bibit unggul sapi bali sebagai bahan pertimbangan dalam memilih secara tepat, akurat dan mempermudah proses pemilihan dengan keputusan terbaik.

 

Abstract

The difficulty to look for superior seeds of Bali cattle causes the selected superior germ plasm being more unproductive in case of fattening cattle. The decision of superior seeds of Bali cattle is a crucial thing for the decision maker, related with this case is Bali cattle breeder. If it is not organized accurately, then the selection of superior seeds on the wrong bali cows often lead to various problems. Decision-making models can be used to help humans, especially cattle ranchers in making decisions. Weighted Product Method is a very effective and efficient method for selecting superior seeds, because the timing needed for calculation is much shorter. The purpose of this research is to make a model of decision making for selection superior seeds of Bali cattle. The decision-making model helps provide recommendations to farmers in the process of selecting superior bali cattle seeds as a material consideration in choosing the right, accurate and simplify the selection process with the best decision.
Deteksi Gulma Berdasarkan Warna HSV dan Fitur Bentuk Menggunakan Jaringan Syaraf Tiruan
Authors: Fitriyah Hurriyatul , Maulana Rizal
Published: November 2021

Gulma merupakan tanaman pengganggu dalam lahan pertanian. Herbisida merupakan obat yang efektif membunuh gulma tersebut. Penyemprotan herbisida harus tepat sasaran kepada gulma saja dan tidak mengenai tanaman. Penelitian ini membuat sistem yang dapat mendeteksi gulma secara otomatis di antara tanaman pada lahan pertanian riil. Sistem ini menggunakan gambar lahan pertanian riil dimana tanaman tampak utuh (daun dapat lebih dari satu) yang diambil menggunakan kamera dengan posisi vertikal menghadap ke bawah. Algoritma yang dibuat menggunakan segmentasi berdasarkan warna hijau dalam ruang warna HSV untuk mendeteksi daun, baik gulma maupun tanaman pada beragam pencahayaan. Sebanyak tiga fitur bentuk domain spasial digunakan untuk membedakan gulma dengan tanaman yang memiliki karakteristik bentuk daun yang berbeda. Fitur bentuk yang digunakan adalah Rectangularity, Edge-to-Center distances function, dan Distance Transform function. Klasifikasi gulma dan tanaman menggunakan metode Jaringan syaraf tiruan (JST) yang dapat dilatih secara offline. Dari 149 tanaman yang terdeteksi dimana 70% sebagai data training, 15% data validasi dan 15% data uji, didapati akurasi pengujian sebesar 95.46%.

Abstract

Weed is a major challenge in a crop plantation. A herbicide is the most effective substance to kill this unwanted vegetation. Spraying the herbicide must be done carefully to target the weeds only. Here in this research, we develop an algorithm that detects weeds among the plants based on the shape of their leaves. The detection is based on images that were acquired using a camera. The leaves of weeds and plants were detected based on their green color using segmentation in HSV color-space as it is more effective to detect objects in various illumination. Three shape features were extracted, which are Rectangularity that is based on Rectangularity, Edge-to-Center distance function, and Distance Transform function. Those features were fed into a learning algorithm, Artificial Neural Network (ANN), to classify whether it is the plant or the weed. The testing on the weed classification in a real outdoor environment showed 95.46% accuracy using a total of 149 detected plants (70% as training data, 15%  as validation data, and 15% as testing data).
Pengujian Usability Google Classroom Berdasarkan Model Use-Questionnaire
Authors: Arifin Suci Ramadhani , Merdekawati Etha Gustin
Published: November 2021

Pembelajaran online adalah solusi ketika lembaga pendidikan ditutup karena wabah COVID-19. Sistem Manajemen Pembelajaran (LMS) merupakan alat untuk memfasilitasi pembelajaran online. Google Classroom dianggap sebagai salah satu LMS yang paling cepat diimplementasikan di pendidikan tinggi. Tujuan dari penelitian ini adalah untuk mengukur tingkat usability Google Classroom sebagai salah satu alat yang digunakan untuk memfasilitasi pembelajaran online di STMIK Dipanegara Makassar. Tingkat usability akan menentukan apakah penggunaan layanan Google Classroom telah efektif, efisien, dan memberikan kepuasan terhadap mahasiswa. Tingkat usability Google Classroom diukur menggunakan USE-Questionnaire. Berdasarkan hasil pengukuran usability terhadap Google Classroom diperoleh nilai rata-rata untuk keseluruhan variabel Usefulness (Daya Guna), Ease of Use (Kemudahan Penggunaan), Ease of Learning (Kemudahan Belajar), dan Satisfaction (Kepuasan Pengguna) adalah 459,1 atau sebesar 76%. Maka dapat disimpulkan bahwa mahasiswa setuju tingkat usability Google Classroom dirasakan sudah baik dan penggunaan layanan Google Classroom telah efektif, efisien, dan memberikan kepuasan terhadap mahasiswa dengan tingkat presentase sebesar 76%.

 

Abstract

Online learning is a solution when educational institutions are closed because of the COVID-19 outbreak. Learning Management System (LMS) is a tool to facilitate online learning. Google Classroom is considered as one of the fastest implementing LMSs in higher education. The purpose of this research is to measure the usability level of Google Classroom as one of the tools used to facilitate online learning at STMIK Dipanegara Makassar. The level of usability will determine whether the use of Google Classroom services has been effective, efficient, and gives satisfaction to students. Google Classroom usability level is measured using USE-Questionnaire. Based on the results of usability measurements on Google Classroom, the average value for all variables of Usefulness, Ease of Use, Ease of Learning, and Satisfaction is 459.1 or 76 %. So it can be concluded that students agree that the usability level of Google Classroom is good and the use of Google Classroom services has been effective, efficient, and provides satisfaction to students with a percentage level of 76%.
Análise epidemiológica das fichas de notificação de mulheres vítimas de violência no município de Foz do Iguaçu
Authors: Santos Caroline Cavalcante dos , Merces Pamela Carolina de Souza , Martins Wesley , Strada Cinthya de Fátima Oliveira
Published: November 2021

Objetivo: Analisar fichas de notificação compulsória de mulheres vítimas de violência do município de Foz do Iguaçu-PR. Métodos: Trata-se de uma pesquisa descritiva e exploratória utilizando-se de fichas de notificação compulsória de casos de violência contra a mulher registrados em 2020. Foram levantados dados de caracterização das participantes, os distritos sanitários com maiores índices de violência, os tipos de violência e o vínculo de parentesco do agressor. Resultados: Foram notificados 330 casos violência contra a mulher no município de Foz do Iguaçu, com idade predominante de 18 a 34 anos, solteiras, que residem em regiões de grandes vulnerabilidades sociais. A agressão física foi o principal tipo de violência, ocorridos no período da noite e na residência. Conclusão: Por meio do estudo, foi possível traçar o perfil dos casos de violência contra a mulher registradas no município. Faz-se necessário a aplicação de busca ativa dessa população de risco, pois ficou evidente que essas mulheres estão em grande vulnerabilidade.
Percutaneous gastrostomy tube placement in a patient with prior sleeve gastrectomy
Authors: Pate Taylor Alexander , O’Neal Daniel William , Dobzyniak Chris
Published: November 2021

Sleeve gastrectomies have quickly become the most common bariatric weight loss surgery performed in the United States (U.S.). Given that hundreds of thousands of gastrostomy tubes (G tubes) are also placed each year, the number of patients with prior sleeve gastrectomies requiring a G tube will surely rise in the coming years. The case presented herein is a patient with prior sleeve gastrectomy who underwent percutaneous G tube placement.
ПРОПЕЛЛАНЫ – ПЕРСПЕКТИВНЫЕ КАРКАСНЫЕ СОЕДИНЕНИЯ В СОЗДАНИИ ВЫСОКОЭНЕРГЕТИЧЕСКИХ ВЕЩЕСТВ
Authors: Минакова А.А. , Ильясов С.Г.
Published: November 2021

Важной задачей современной органической химии является открытие новых, ранее не известных науке веществ, которые могли бы расширить область наших знаний и пополнить номенклатуру высокоэнергетических или биологически активных продуктов. 3,7,10-Триоксо-2,4,6,8,9,11-гексааза[3.3.3|пропеллан и его нитропроизводные являются новейшими продуктами класса гетероциклов, их азотсодержащая полициклическая структура предполагает наличие интересных и полезных свойств, что обусловливает проявленный интерес к данной работе. Химия 3,7,10-триоксо-2,4,6,8,9,11-гексааза[3.3.3|пропеллана малоизучена и представлена лишь двумя алкилпроизводными и теоретическими расчетами энергетических характеристик нитропроизводных. В статье преставлены результаты исследования нитрования 3,7,10-триоксо-2,4,6,8,9,11-гексааза[3.3.3]пропеллана (THAP) концентрированнойазотной кислотой. Установлено, что в процессе нитрования наблюдается протекание двух конкурирующих реакций – лактам-лактимной перегруппировки и нитрования. Было показано, что продукты реакции сильно зависят от температуры реакционной массы. Установлено, что температуре -40 ºС протекает образование лактимной формы ТНАР, тогда как при постепенном увеличении температуры сначала образуется мононитропроизводное пропеллана, а при температуре 40 ºС идёт селективное образование 3,7,10-триоксо-2,6-динитро-2,4,6,8,9,11-гексааза[3.3.3]пропеллана с выходом 30%.

An important task of modern organic chemistry is the discovery of new substances previously unknown to science, which could expand the area of our knowledge and replenish the range of high-energy or biologically active products. 3,7,10-Trioxo-2,4,6,8,9,11-hexaaza[3.3.3]propellane and its nitro derivatives are the newest products of the class of heterocycles; interest in this work. The chemistry of 3,7,10-trioxo-2,4,6,8,9,11-hexaaza[3.3.3]propellane is poorly understood and is represented by only two alkyl derivatives and theoretical calculations of the energy characteristics of nitro derivatives. The article presents the results of a study of the nitration of 3,7,10-trioxo-2,4,6,8,9,11-hexaaza[3.3.3]propellane (THAP) with concentrated nitric acid. It was found that in the process of nitration, there are two competing reactions - lactam-lactam rearrangement and nitration. It was shown that the reaction products strongly depend on the temperature of the reaction mixture. It was found that at a temperature of -40 ºС the formation of the lactimic form of THAP proceeds, whereas with a gradual increase in temperature, a mononitro derivative of propellane is first formed, and at a temperature of 40 ºС, the selective formation of 3,7,10-trioxo-2,6-dinitro-2,4,6,8,9,11-hexaaza[3.3.3]propellane in 30% yield.
МЕТОДИКА ОБРАБОТКИ ЭКСПЕРИМЕНТАЛЬНЫХ ДАННЫХ И АЛГОРИТМ ДЛЯ ЕЕ РЕАЛИЗАЦИИ ПО ОПРЕДЕЛЕНИЮ ПАРАМЕТРОВ РЕОЛОГИЧЕСКОЙ МОДЕЛИ ДИЛАТАНТНОЙ ЖИДКОСТИ С ЭФФЕКТОМ «ОТВЕРДЕВАНИЯ»
Authors: Колодежнов В.Н. , Колтаков А.В. , Капранчиков С.С. , Веретенников А.С.
Published: November 2021

В различных технических приложениях применяются рабочие среды типа суспензий, которые при достаточно высокой концентрации частиц твердой фазы демонстрируют аномалии вязкости. Существо этих аномалий заключается в том, что при приближении скорости сдвига к некоторому пороговому значению наблюдается явление резкого возрастания вязкости жидкости. При этом в соответствующих зонах течения рабочая среда начинает вести себя подобно твердому телу. Механическое поведение такой рабочей среды может быть описано в рамках реологической модели вязкопластической жидкости, которая позволяет учитывать проявление эффекта“упрочнения” или “отвердевания”. Рассмотрена методика определения параметров такой реологической модели на основе обработки экспериментальных данных зависимости касательного напряжения от скорости сдвига. Предложен алгоритм для реализации этой методики.

In various technical applications, working media such as suspensions are used, which, at a sufficiently high concentration of solid phase particles, demonstrate viscosity anomalies. The essence of these anomalies lies in the fact that when the shear rate approaches a certain threshold value, the phenomenon of a sharp increase in the viscosity of the liquid is observed. At the same time, in the corresponding flow zones, the working medium begins to behave like a solid. The mechanical behavior of such a working medium can be described within the framework of a rheological model of a viscoplastic fluid, which allows for the manifestation of the effect of “hardening” or “solidification”. The method of determining the parameters of such a rheological model based on the processing of experimental data on the dependence of the shear stress on the shear rate is considered. An algorithm for the implementation of this technique is proposed
ИССЛЕДОВАНИЕ МОДЕЛИ ОБРАЩЕНИЯ К WEB-СЛУЖБЕ ASP.NET ЧЕРЕЗ ПРОКСИ СБОРКУ НА ПРИМЕРЕ РАЗРАБОТКИ СЕРВИСА ПО АРЕНДЕ ВИДЕОФИЛЬМОВ
Authors: Маслов Н.Д. , Попова Е.В.
Published: November 2021

В статье рассматривается исследование модели соединения Web-приложения и Web-службы напрямую и через прокси. Рассматривается кроссплатформенная высокопроизводительная среда ASP.NET. При разработке используется паттерн MVC. Формирование запросов реализуется с помощью архитектурного стиля REST и протокола передачи гипертекста HTTP. Строится модель взаимодействия Web-приложения и Web-службы. Целью данной работы является исследование данной модели взаимодействия напрямую и через прокси. Были разработаны Web-приложение, являющееся сервисом по аренде видеофильмов и Web-служба, функциональное назначение которой – работа с базой данных Web-сервера. Для реализации прокси сборки было создан отдельный проект. В настройках проекта были прописаны протокол передачи данных, хост API, порт и роутинги перенаправления запросов. Исследование модели проводилось с помощью программного обеспечения Postman и инструментов браузера. Результаты исследования показывают плюсы и минусы использования прокси при взаимодействии Web-приложения и Web-службы. Данная статья поможет заказчикам, разработчикам Web-приложений выбрать модель соединения Web-приложения и Web-службы, соответствующую решаемым задачам.

The article considers the study of the connection model of a Web application and a Web service directly and through a proxy. A cross-platform high-performance environment is considered ASP.Net. The MVC pattern is used during development. Request generation is implemented using the REST architectural style and the HTTP hypertext transfer protocol. A model of interaction between a Web application and a Web service is being built. The purpose of this work is to study this model of interaction directly and through a proxy. A Web application was developed, which is a video rental service and a Web service, the functional purpose of which is to work with a Web server database. A separate project was created to implement the build proxy. In the project settings, the data transfer protocol, API host, port and request forwarding routings were registered. A previously developed service was used as an API. The model was studied using Postman software and browser tools. The results of the study show the pros and cons of using a proxy when interacting with a Web application and a Web service. This article will help customers, developers of Web applications to choose a model for connecting a Web application and a Web service that corresponds to the tasks being solved.
Second Lieutenant Chernik Porpecite
Authors: Генералов М.Е. , Паутов Л.А.
Published: November 2021

При изучении образцов порпецита, переданных в 1909 г. в коллекцию Минералогического музея Г.П. Черником, выяснено, что кроме собственно порпецита (палладистого золота пробностью 600–700) в них присутствует самородный палладий и сульфидные фазы состава Pd4S. Выяснено также, что россыпи, где в конце XIX века были найдены минералы платиноидов, расположены не в Грузии, как указывается в литературе, а на территории Турции, близ города Артвин.
Vanadium dravite from the South-East Uzbekistan
Authors: Гореликова Н.В. , Портнов А.М. , Таскаев В.И. , Рассулов В.А. , Чижова И.А. , Каримова О.В. , Балашов Ф.В. , Боева Н.М.
Published: November 2021

Ванадиевый травяно-зеленый дравит обнаружен в маломощных (до 10 см) кварцевых жилах, пересекающих черные кремнистые сланцы позднего протерозоя, обогащенные ураном и ванадием (до 50 ppm). Содержание V2O3 в – до 5.34% при низком содержании железа и повышенном магния. По всей вероятности, ванадий занимает в структуре минерала в основном Z-позицию. Получены спектры диффузного отражения в диапазоне 350–2500 нм и люминесценции при возбуждении УФ-излучением N-лазера. Появление ванадия в качестве хромофора и люминофора в метаморфических породах интерпретируется как индикатор древних океанических структур на континентах. В статье 11 рисунков, 2 таблицы, 21 литературная ссылка.
Spatial distribution of “Amber” defects in diamond: results of IR mapping
Authors: Ширяев А.А. , Титков С.В.
Published: November 2021

Методом инфракрасной микроспектроскопии исследовано пространственное распределение точечных дефектов в пластинах, вырезанных из природных алмазов. Показано, что пространственное распределение так называемых «янтарных» (amber) дефектов не связано напрямую с распределением азотных А-центров, скорее наблюдается антикорреляция между ними. На основании полученных данных можно предположить, что образование «янтарных» дефектов, хотя и, вероятно, связано с деформационными процессами, требует сравнительно редкой комбинации ростовых точечных дефектов.
On the cadmium mineralization in the Darai-Pioz alkaline massif
Authors: Карпенко В.Ю. , Паутов Л.А. , Агаханов А.А. , Сийдра О.И.
Published: November 2021

Впервые в щелочном массиве Дараи-Пиёз (Таджикистан) встречены собственные минералы кадмия – гринокит CdS (гекс.с.) и отавит CdCO3, а также получены дополнительные данные о содержании Cd в сфалерите (от 0.12 до 3.65 мас.%). Гринокит (с 3.3 – 3.8 Zn, мас.%) находится в виде зерен до 0.4 мм в гнездах галенита из эгирин-кварц-полевошпатовой породы в ассоциации с полилитионитом, цезий-куплетскитом, амфиболом серии рибекит-арфведсонит, туркестанитом, англезитом. Параметры гексагональной ячейки: a = 4.171(2), c = 6.772(1) Å, V = 102.1(1) Å3. Отавит встречен на контакте галенитового прожилка в гранулированном кварце в виде рыхлых агрегатов (~0.5 x 0.5 мм), по которым развивается Cd-сод. церуссит (CdO 2.3 мас.%). Состав отавита неоднороден (мол.%): 77–87 CdCO3, 4–19 CaCO3, 4–9 PbCO3, 1–5 ZnCO3. Для диагностики минералов использованы рентгеновский метод (фотометод), микрозондовый анализ. Для гринокита приведен спектр отражения. Обсуждаются возможные механизмы разделения Zn и Cd. Вероятно, это первый случай находок собственно кадмиевых минералов в щелочных породах.В статье 5 таблиц, 7 рисунков, список литературы из 56 названий.
Environmentally friendly and roll-processed flexible organic solar cells based on PM6:Y6.
Authors: Fernández Castro Marcial , Truer Jean , Espindola-Rodriguez Moises , Andreasen Jens Wenzel
Published: November 2021

Organic Solar Cells (OSCs) have reached the highest efficiencies using lab-scale on active areas far below 0.1 cm^2. This tends to widen the so-called “lab-to-fab gap”, which is one of the most important challenges to make OSCs competitive. The most commonly used fabrication technique is spin-coating, which has poor compatibility with large-scale techniques and substantial material waste. Moreover, other techniques such as blade or slot-die coating are much more suitable for roll-to-roll manufacturing processes, which is one of the advantages the technology has compared, for example, to silicon solar cells. However, only a few studies report solar cells using these fabrication techniques. Additionally, for the environmentally friendly OSC scale-up, inks based on non-hazardous solvent systems are needed. In this work, slot-die coating has been chosen to coat the PM6:Y6 active layer, using o-xylene, a green solvent, without additives. The optimal coating parameters are defined through fine-tuning of the coating parameters, such as the drying temperature and solution concentration. Moreover, ternary devices with PCBM, and fully printed devices are also fabricated. Power conversion efficiencies of 6.26% and 7.16% are achieved for binary PM6:Y6 and ternary PM6:Y6:PCBM devices, respectively.
Elucidating the germanium distribution in ITQ-13 zeolites by density functional theory
Authors: Fischer Michael , Bornes Carlos , Mafra Luís , Rocha João
Published: November 2021

ITQ-13 is a medium-pore zeolite that can be prepared in all-silica form and as silicogermanate with Si/Ge ratios as low as 3. Usually synthesised in the presence of fluoride, ITQ-13 is among the very few systems containing fluoride anions in two distinct cage types, cube-like d4r units and [4·5^6] cages. Here, dispersion-corrected density functional theory (DFT) calculations are used to investigate the energetically most favourable Ge distributions for Si/Ge ratios between 55 and 6. The calculations show Ge atoms are incorporated at both the corners of d4r cages and at the basal plane of the [4·5^6] cages, in accordance with 19F-NMR spectroscopy. Two Ge atoms at adjacent corners of [4·5^6] cages are stable at the highest Ge content. Such a local environment has not yet been considered in the experimental literature. A calculation of the corresponding 19F-NMR resonance points to overlap with other resonances, which might preclude its clear identification. Additional calculations investigate the variation of the dynamic behaviour of the fluoride anions as a function of the local environment as well as the selective defluorination of the [4·5^6] cages.
Kernel Charge Equilibration: Efficient and Accurate Prediction of Molecular Dipole Moments with a Machine-Learning Enhanced Electron Density Model
Authors: Staacke Carsten , Wengert Simon , Kunkel Christian , Csányi Gábor , Reuter Karsten , Margraf Johannes T.
Published: November 2021

State-of-the-art machine learning (ML) interatomic potentials use local representations of atomic environments to ensure linear scaling and size-extensivity. This implies a neglect of long-range interactions, most prominently related to electrostatics. To overcome this limitation, we herein present a ML framework for predicting charge distributions and their interactions termed kernel Charge Equilibration (kQEq). This model is based on classical charge equilibration models like QEq, expanded with an environment dependent electronegativity. In contrast to previously reported neural network models with a similar concept, kQEq takes advantage of the linearity of both QEq and Kernel Ridge Regression to obtain a closed-form linear algebra expression for training the models. Furthermore, we avoid the ambiguity of charge partitioning schemes by using dipole moments as reference data. As a first application, we show that kQEq can be used to generate accurate and highly data-efficient models for molecular dipole moments.
Good Vibrations: Calculating Excited State Frequencies Using Ground State Self-Consistent Field Models
Authors: Abou Taka Ali , Corzo Hector , Pribram-Jones Aurora , Hratchian Hrant
Published: November 2021

△SCF methods have proven to be reliable computational tools for the assignment and interpretation of photoelectron spectra of isolated molecules. These results have increased the interest in △SCF techniques for electronic excited states based on improved algorithms that prevent convergence to ground states. In this work, one of these △SCF improved algorithms is studied to demonstrate its ability to explore the molecular properties for excited states. Results from △SCF calculations for a set of representative molecules are compared with results obtained using time-dependent density functional theory and single substitution configuration interaction method. For the △SCF calculations, the efficacy of a spin-purification technique is explored to remedy some of the spin-contamination presented in some of the SCF solutions. The obtained results suggest that the proposed projection-based SCF scheme, in many cases, alleviates the spin--contamination present in the SCF single determinants, and provides a computational alternative for the efficient exploration of the vibrational properties of excited states molecules.
Approximate bounds and temperature dependence of adiabatic connection integrands for the uniform electron gas
Authors: Harding Brittany P. , Mauri Zachary , Pribram-Jones Aurora
Published: November 2021

Thermal density functional theory is commonly used in simulations of warm dense matter, a highly energetic phase characterized by substantial thermal effects and by correlated electrons demanding quantum mechanical treatment. The numerous approximations for the exchange-correlation energy component in zero-temperature density functional theory, though often used in these high-energy-density simulations with Fermi-weighted electronic densities, are known to miss temperature-dependent effects in the electronic structure of these systems. In this work, the temperature-dependent adiabatic connection is demonstrated and analyzed using a well-known parameterization of the uniform electron gas free energy. Useful tools based on this formalism for analyzing and constraining approximations of the exchange-correlation at zero temperature are leveraged for the finite-temperature case. Inspired by the Lieb-Oxford inequality, which provides a lower bound for the ground-state exchange-correlation energy, bounds for the exchange-correlation at finite temperatures are approximated for various degrees of electronic correlation.
Сhanging the lubricity of diesel fuel with vegetable oil additive
Authors: Krivtsov S. N. , Krivtsova T. I.
Published: November 2021

Intriduction. The environmental safety of cars with a diesel engine does not lose its relevance. In the conditions of stricter requirements for diesel fuel, the content of many substances harmful to the environment, including sulfur, is not allowed. As is known, low-sulfur fuels require the presence of additives that improve the lubricating properties of diesel fuel. Non-compliance with the requirements for lubricity significantly affects the resource of the fuel supply system of a diesel engine, primarily the Common Rail system. In order with the circumstances listed above, we hypothesized that vegetable oil can serve in small concentrations to improve the lubricating properties of fuels.Materials and methods. In our research, we conducted experiments using the standard HFRR method (highfrequency translational motion of a ball rubbing against a plate in fuel). A microscope was used to visually assess the wear spots and measure their size. Diesel fuel was taken as samples for experiments and vegetable oil was added to it as an additive in certain proportions.Discussion and conclusions. The vegetable oil additive can improve the lubricity of diesel fuel, even if it does not comply with GOST for this parameter. The experiments conducted allow us to conclude that the vegetable oil additive as a percentage of diesel fuel almost linearly reduces the diameter of the wear spot
Estimation of truck reduction factors applicable to calculation of parameters of a regulated intersection
Authors: Donchenko V. V. , Shumskiy A. N.
Published: November 2021

Introduction. The rapid growth of the country’s car park and the increasing rate of traffic volume lead to various types of transport problems. This is especially acute in regulated areas located near logistics parks, as well as in industrial zones of cities. Here, in the general traffic flow, trucks prevail, which differ from passenger cars primarily in their overall dimensions and dynamic characteristics. For the uniformity of the traffic flow, a certain difference is compensated by specialized coefficients of converting to a conventional passenger car. The performed research is aimed at establishing the main methods used in bringing freight vehicles to a conventional passenger car and assessing the current coefficients of converting freight vehicles to a conventional passenger car by determining the value of the reduced traffic intensity.Methods and materials. Within the framework of the study performed, natural methods of data collection were used for the subsequent calculation. When analyzing certain parameters, mathematical models have been established that underlie certain values of the coefficients of converting trucks to a conventional passenger car.Results. In the course of the study, the authors classified the methods for determining the coefficients of bringing a truck to a conventional passenger car. The values of the reduction factors for some of them have been established, which can be used when calculating the parameters of the regulated section. The present value of road traffic on the set object of the study - the regulated intersection - has been calculated using different actuation coefficients established earlier. The results obtained are assessed.Conclusion. The analysis of the values obtained as a result of calculations showed their significant difference from each other with a difference of 12%, 53% and 300% of the value of the total (not reduced) intensity. Based on the results obtained, the main tasks of further research are determined.
Influence of soil moisture on the deformation properties of soil-crushed stone samples during compression
Authors: Prolygin A. S. , Dolgikh G. V. , Kalinin A. L. , Alexandrova N. P.
Published: November 2021

Introduction. The purpose of the article is to determine the dependence of the influence of soil moisture and the content of crushed stone in a soil-crushed stone sample on the secant modulus of deformation under uniaxial compression. The need for such a mathematical model is necessary in order to introduce correction factors to the values of the stamped deformation moduli of the gravel layer calculated from test data delivered at other soil moisture conditions, e.g. for flume or road tests during a non-calculated period of the year.Materials and methods. Cylindrical samples with a height of 20 cm and a diameter of 10 cm were made to perform tests using a large standard sealing device. The content of crushed stone of a mixture of fractions of 5-10 and 10-20 mm varied in the samples. The methods of saturation of samples with water and their testing by uniaxial compression are given. The rules for processing the experimental results are described, which include: correction of the initial part of the graphical dependence of deformation from pressure and statistical processing of the results. The analysis of methods for calculating the deformation modulus, which are classified into three types, is performed: secant module, tangent module and piecewise linear module. Based on this analysis, a method for calculating the deformation modulus of a soil-crushed stone sample under uniaxial compression is justified.Results. The results of experimental determination of the deformation characteristics of soil-crushed stone samples under uniaxial compression are presented. A mathematical model of the dependence of the deformation modulus of a soil-crushed stone sample from the soil moisture and the content of crushed stone used in the soil-crushed stone mixture is obtained.Discussion and conclusions. Recommendations are given on the application of the research results for the development of an album of standard constructions of road pavement of the lowest type in the districts of the Omsk region.
A Critical Consideration of Current Social Insurance Policy Developments in New Zealand
Authors: Chapple Simon , Fletcher Michael
Published: November 2021

Recent surprising announcements about the development of a social unemployment insurance (SUI) system by the Labour government are critically considered. Introducing SUI represents a major philosophical lurch from a welfare system mainly about family poverty alleviation towards one which has a stronger focus on market income replacement for individual low- and middle-income earners. We critically consider the policy process, the reasons why an SUI system might be desirable, and several alternative solutions to the likely proposal. We express scepticism about the democratic credentials of the process thus far and conclude that a persuasive case for such major reform has not yet been made.
Social Unemployment Insurance: A case (more or less) in favour
Authors: Duncan Grant
Published: November 2021

Budget 2021 announced a social unemployment insurance (SUI) system, to be developed in partnership with BusinessNZ and the New Zealand Council of Trade Unions, and modelled on the accident compensation (ACC) scheme. This new policy addresses the needs of workers involuntarily laid off as industries restructure and seek new skills. This article considers concerns raised about the SUI proposal, drawing comparisons with the ACC experience. While SUI would perpetuate market income inequalities and may not do much to prevent poverty, it could also reduce other sources of inconsistency and disadvantage.
Sex, Gender and Women's Rights
Authors: Rivers Jan , Abigail Jill
Published: November 2021

Despite legislation proposing sex self-identification being deferred in early 2019, numerous government departments and agencies have implemented self-identification in their policies and practices. If a man can declare himself to be a woman, what, then, is a woman, and how can women’s rights as a political class be maintained? This article explores the tensions between women’s sex-based human rights and the claims of transgender advocates. In so doing, it discusses the nature and implications of gender ideology and highlights the failure of public sector institutions, in embracing key tenets of this ideology, to follow well-established policymaking processes.
Integrated Marketing Communication and Customer Satisfaction as a function of Customer Loyalty with the Moderating role of Product Innovation Moderation
Authors: Adnan Muhammad , Khan Ather Ummad , Hayee Raisham
Published: November 2021

Purpose: The basic aim of the current study is to investigate the impact of integrated marketing communication on customer loyalty especially in the individuals living in South Punjab, Pakistan. Design/Methodology/Approach: The paper focuses on a survey with a 7.0-point Likert Scale questionnaire using 55 items including all variables and constructs. The sample population was used from South Punjab, Pakistan comprising of individuals living in this area. PLS-SEM was used as an analysis tool for this quantitative data. Findings: The primary finding of the study is to use the innovative technology so as to provide the new and unique features within brands so as to enhance the loyalty within customers. Implications/Originality/Value: The study uses a single moderator and mediator which restricts the study to this domain only. Future research may use some other variables like brand trust and brand commitment as moderator and/or mediator to extend this current study. Moreover, future research may use longitudinal approach to avoid any data bias. The researchers focus on the technological advancement for product innovations so as to satisfy the needs and wants of customer which consequently leads to increase the customer loyalty towards the brands.  This study is novel in its nature as it discusses the relationship between IMC and Customer loyalty with the moderating effect of Product Innovation. The paper provides an illusion to the fact that the employees require the new and innovative brands which forces the companies to augment not only the features of their brands but the communication campaign as well
PENGARUH DURASI CAMSHAFT TERHADAP PRESTASI MESIN BENSIN 110 CC
Authors: Halim Halim , Bachmid Reza , Yudha Sabdha Purna
Published: November 2021

Effect camshaft duration on performance of 110 cc gasoline engine carried out by comparing the duration of standard and modified camshafts of 303.5o to obtain maximum power produced by 110 cc smash type Suzuki engine and its effect on fuel consumption. This study aims to know of, (1) torque machine with modification in duration camshaft, (2) knowing total fuel consumption (FC), spesific fuel consumption (SFC), and thermal efficiency of the standard engine and engine has modified in the duration of its camshaft. A method of testing in the research was done with to the chassis of dynamometer as for testing done in PT.Suzuki galesong pratama through adhering to a standard testing suzuki that has been set. The results showed a change in the value of power and torque on standard engine power obtained by 5.3 HP or 3.88 kW to 6.0 HP or 4.63 kW with a torque value of 6.14 N.m, then decreased at 9000 rpm rotation of 5.02 Nm. While the duration of power modification camshaft obtained is 7.5 HP or 5.60 kW with a torque of 8.65 Nm, it also decreases at 9000 rpm of 7.9 HP or 5.89 kW. The significant effect occurs at 9000 rpm. Standard camshaft FC value is obtained at 0.8946 kg / h, SFC = 0.1932 kg / kWh. For duration of modified camshaft, at 9000 rpm,  FC value obtained was 1.6526 kg / h, SFC = 0.2806 kg / kWh. From these results, it is known that an increase occurred in the FC value with a difference of 0.758 from previous results with an SFC of 0.0874. Furthermore, thermal efficiency obtained by 50.01% at 6000 rpm decrease by 40.29 % at 9000 rpm for standard camshaft. The duration of a modified camshaft was obtained by 53.34% at 6000 rpm and decrease by 30.02 %  at 9000 rpm.