bluuebunny/crossref_metadata_2025 huggingface dataset:
Азотные астралены: теоретическое исследование структуры новых высокоэнергетических аллотропов азота
Authors:   Национальный исследовательский ядерный университет ", Меринов В.Б. ,   МИФИ",   , Москва, Россия
Published: January 2021

Анализируется структура и устойчивость каркасных молекул, состоящих из атомов азота. Предложен новый класс таких молекул, состоящих из нескольких сросшихся нанотрубок нанометровой длины — астралены. В зависимости от формы центральной части (ядра) астралены могут быть разделены на кубические, гексагональные и тетраэдрические. Их структура и электронные свойства определены при помощи теории функционала электронной плотности. Показано, что на основе астраленов возможно формирование ковалентных кристаллов, представляющих собой новые аллотропные формы азота. Они имеют симметрию Pm3m, P6/m и Fd3m и являются полупроводниками с энергетической щелью в диапазоне от 0.32 эВ до 2.04 эВ.
A first-principles investigation of heterostructures consisting of halide perovskite CsPbI3 and lead chalcogenide for optoelectronic applications
Authors:   Binjiang College, Nanjing University of Information Science and Technology, Nanjing, P. R. China, Su J. , Zhang L. , Qiang Y. ,   School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing, P. R. China
Published: January 2021

The heterostructure consisting of lead chalcogenide and halide perovskite materials are recently identified as excellent candidates for optoelectronic devices such as solar cells. Several theoretical works are carried out to understand the nanoscopic structures and properties of halide perovskite/lead chalcogenide heterostructures. However, the detailed features of the heterosystems, including the effects of the solute concentration, types of lead chalcogenide, and polaronic states are not investigated. In this manuscript, we employ first-principles calculations to provide an alternative view of the halide perovskite/lead chalcogenide heterostructure, focusing on CsPbI3 and the molecular size of PbS/PbSe lead chalcogenide. The calculations confirm the constituent concentration and the elemental substitution can be employed to fine tune the optoelectronic properties of halide perovskite/lead chalcogenide heterostructures. This work facilitates the fundamental understanding of the halide perovskite/lead chalcogenide systems toward optoelectronic applications.
Хирально-зависимое водородное связывание и энергетика диастереоморфных кристаллов 1-бензил-3-бром-5-гидрокси- 4-[(4-метилфенил)сульфанил]-1,5-дигидро-2Н-пиррол-2-она
Authors:   Институт органической и физической химии им. А.Е. Арбузова ФИЦ КазНЦ РАН, Казань, Россия, Герасимова Д.П. , Сайфина А.Ф. , Захарычев Д.В. , Зарипова А.Р. , Файзуллин Р.Р. , Курбангалиева А.Р. , Лодочникова О.А. ,   Химический институт им. А. М. Бутлерова, Казанский (Приволжский) федеральный университет, Казань, Россия
Published: January 2021

Получены и охарактеризованы две кристаллические формы rac-1-бензил-3-бром-5-гидрокси-4-[(4-метилфенил)сульфанил]-1,5-дигидро-2Н-пиррол-2-она, а именно: рацемическое соединение (P21/c) и нормальный конгломерат (P65, P61). Показано, что конгломерат термодинамически более предпочтительный, а рацемическое соединение оказывается метастабильной формой во всем исследованном диапазоне температур. Эти две модификации образуются в виде смеси при обычной кристаллизации из раствора, характеризуются одинаковой плотностью, но их структуры существенно различаются параметрами водородных связей. Небольшая разница в свободной энергии двух фаз при комнатной температуре, определенная из данных ДСК, объясняет экспериментальную доступность обеих форм при кристаллизации из раствора. Формирование более прочной водородной связи в кристаллах конгломерата, зафиксированное методами рентгеновской дифракции и колебательной спектроскопии, может объясняться более благоприятным взаимным расположением донорной и акцепторной группировок соседних молекул в составе гомохиральной спирали по сравнению с гетерохиральным димером, который является основным мотивом в кристаллах рацемического соединения.
Control of a COVID-19 outbreak in a nursing home by general screening and cohort isolation in Germany, March to May 2020
Authors: Krone Manuel , Noffz Annette , Richter Elisabeth , Vogel Ulrich , Schwab Michael
Published: January 2021

Elderly care facilities have become a major focus of coronavirus disease (COVID-19) control. Here, we describe an outbreak of COVID-19 in a nursing home in Germany from 8 March to 4 May 2020 (58 days), and the effect of an intervention of general screening and cohort isolation. COVID-19 cases among residents and staff were recorded on a daily basis from the first positive SARS-CoV-2 test from a resident on 8 March 2020, until 4 May 2020 when the last staff member was classified COVID-19 negative. Eighty of 160 residents (50%) and 37 of 135 staff members (27%) tested positive for SARS-CoV-2. Twenty-seven of the 80 residents were asymptomatic but tested positive during the first general screening. Cohort isolation of SARS-CoV-2 positive residents by reorganising the facility proved to be a major effort. After the intervention, four further asymptomatic residents tested positive in follow-up screenings within a period of 6 days, and were possibly infected prior to the intervention. Thereafter, no further infections were recorded among residents. The described outbreak was controlled by implementing general screening and rigorous cohort isolation, providing a blueprint for similar facilities.
Land rent as a factor in the modernization of the post-reform city. On the example of Nizhny Novgorod 1860–1910s
Authors:   Lobachevsky National Research State University of Nizhny Novgorod, Akasheva A.
Published: January 2021

The problem of studying prices, areas, the number of tenants, and the duration of land lease for the production of building materials – red bricks and sawn wood in Nizhny Novgorod over a long period of time is posed. The original time series in current prices were deflated. A primary analysis of the dynamics was carried out. Three stages of development of land lease processes are identified. The conclusion is made about low rates of urban modernization. The study is accompanied by online spreadsheets containing the source data, calculations and graphs.
Methodological approaches to modeling the role of institutions and technologies in the economic growth of the late USSR (mid-1950s – late 1980s)
Authors:   Russian Academy of National Economy and Public Administration under the President of the Russian Federation,, Didenko D. , Grineva N.
Published: January 2021

Based on historical data, we test our modified production functions, derived from exogenous growth model by Mankiw, Romer, Weil (1992) and theoretical ideas by Romer (1990). Besides physical and human capital, we augment them with proxy indicators for institutional and technological environments, and with a source of endogenous growth, i.e. R&D expenditures. We present our preliminary assessments of the role of these factors in economic growth of the late USSR in inter-country comparison.
Light industry during the years of the Kosygin reform (1965–1970): analysis of the growth rates of the total volume of light industry output based on reference books on Soviet industry and Consolidated reports of the Central Statistical Administration of the USSR Council of Ministers
Authors:   Russian Academy of National Economy and Public Administration under the President of the Russian Federation, Moscow, Maximov O.
Published: January 2021

The article represents indices of the Soviet Union’s light industry, such as gross output, rate of growth of gross output during the eighth five-year plan. The data for statistical analysis were taken from industrial reference books and the Central Statistical Administration of the Council of Ministers of the USSR’s archive fund. Problem of the research is disparity of same indices in different sources. During a statistical analysis arithmetical mean was count for each analysed index, and it was discovered which source’s data were the closest to the means.
The natives of Smolensk province – first-year students of Moscow university of 1917
Authors:   Moscow Lomonosov State University, Pushkov V. , Zavjalov S. ,   Museum «New Jerusalem»
Published: January 2021

In 1917 Smolensk province stood on the second place by the quantity of sophomores of the Moscow university next to Vladimir province (139 and 158 students correspondingly). 7 districts out from 11 were represented. Mainly graduators of gymnasia and the Seminary entered the university. For the first time 8 girls became students. Principally the social structure of students included petty bourgeoisie, clergy and peasantry. Most part of students entered physics and mathematics department, much smaller part entered medical department and ones of law and of linguistics and history.
Tools of extraction and procedures of preparation of linguistic data for statistic analysis in the historical corpus «Manuscript»
Authors:   Kalashnikov Izhevsk State Technical University, Baranov V. , Gnutikov R. ,   Udmurt State University, Izhevsk
Published: January 2021

Considered is the task of automatic reduction of the text forms with variable graphics and orthography of the corpus “Manuscript” (manuscripts.ru), comprising exact transcriptions of Slavonic medieval manuscripts, to one and only one lemma, which is necessary for correct statistic analysis of the corpus linguistic data. Several ways and procedures of comparison of normalized forms, which are available in the corpus electronic dictionary, with the text forms are proposed.
Charitable activities in the Perm province in the initial period of the First World War (1914–1915): the experience of spatial analysis (Based on the materials of the newspaper «Perm Zemskaya Nedelya»)
Authors:   National Research University «Higher School of Economics», Perm, Renev D.
Published: January 2021

The publications are analyzed, containing data on charitable activities in Russia in the First World War, in the issues of the magazine “Perm Zemskaya Week”. The information is entered into a relational database. Based on this information, a mathematical-cartographic model was created, that reflects the spatial distribution of militarized charitable actions in the Perm province during the campaigns of 1914 and 1915. The most active were the economically developed cities, the least active were the counties far from the center of the province, and the agricultural counties show an average involvement in charitable activities
The problem of the development of the historical and cultural heritage of the Returned Lands (Poland) on the pages of the Osadnik magazine: the experience of content analysis
Authors:   Immanuel Kant Baltic Federal University, Kaliningrad, Saenko A.
Published: January 2021

After the Second World War the former eastern provinces of Germany, called the Recovered Territories, were joined to Poland. The purpose of the study is to identify the main approaches to the development of the historical and cultural heritage of new territories, presented on the pages of the Polish magazine “Osadnik” (1946–1948), using the methods of computerized text analysis. It is concluded that two interrelated tendencies were the main ones in the policy of the state – the removal from the cultural landscape German features and the return of its Polish appearance.
The sectoral newspaper of the Soviet food industry in 1928–1937 as a historical source (analysis possibilities in MAXQDA computer program)
Authors:   Lomonosov Moscow State University, Soloshchenko N.
Published: January 2021

The subject of the research is the features of the sectoral newspaper of the Soviet food industry in 1928–1937 and the possibilities offered to historians by analyzing its texts in the MAXQDA program. The report concludes that the study of the newspaper using content analysis made it possible to systematize the dynamics of changing the agenda of one of the largest industries in the USSR in 1928–1937 and highlight the factors that influenced this process
“Manor libraries of the Tambov province of the late 18th – early 20th centuries”: a method of creating an information resource
Authors:   Derzhavin Tambov State University, Zhitin R. , Topil'skiy A. ,   Derzhavin Tambov State University
Published: January 2021

The article analyzes the main approaches to creating an information resource “Estate libraries of the Tambov province of the late XVIII – early XX century. The author analyzes the source base, identifies ways to systematize book collections of Tambov nobles of the XVIII–XIX centuries in Russian, French, Greek, Latin, English and German, and their significance for the study of book culture in the region
Altered olfaction, obesity, and glycosylated hemoglobin; Indicators of accelerated ageing in apparently healthy, Pakistan's young aged population
Authors: Mirza Faizan , Fazal Amaila , Siddiqui Najia , Ahmed Sadaf
Published: January 2021

Background:  Obesity is an associated risk of devastating diseases and increased mortality. Thereby, the study objective was to evaluate the predisposing obese individuals towards accelerated ageing and determine the smell test as the possible indicator for early biological ageing.

Methodology: This was a descriptive cross-sectional study carried out in Karachi, Pakistan, from 8th June 2016- 4th December 2019. A total of 412 individuals were included in the study. The data for age, gender, body mass index (BMI), sniffing score, and hemoglobin A1c (HbA1c) levels were collected from the target population. The screening 12 test was intended to be used for the examination of smell disorders in humans. The test results were used to differentiate between Normosmia, Hyposmia, and Anosmia. 

Results: Four hundred and twelve participants were recruited in the study with a mean age of 32.65±12.6 years and divided into three age groups; 20 to 36, 37 to 53, and 54 to 70 years. There were 194 (47.1 %) females and 218 (52.9 %) males. Out of the total, 19.9 % of individuals were underweight, 58.5 % were normal, 21.6 % were overweight. It was also observed that of the total, 24 % of participants were pre-diabetic.  Cross analysis of the variables showed that the olfaction decreased as the BMI was increasing (p=0.000 for obese).

Conclusion: As the sense of olfaction decreased with an increase in BMI and HbA1c levels, it was concluded that obese individuals have an increased predisposition towards accelerated ageing and the increased risk of predisposition to diabetes to obesity significantly accelerate the process of biological ageing.
Causal Relations of Factors Representing the Elderly Independence in Doing Activities of Daily Livings Using S3C-Latent Algorithm
Authors: Effendy Christantie , Tou Nurhaeka , Rahmadi Ridho
Published: January 2021

The growth of the elderly population in Indonesia from year to year has always increased, followed by the problem of decreasing physical strength and psychological health of the elderly. These problems can affect the increase in dependence and decrease the independence of the elderly in ADL. In previous studies, various factors affect independence in ADLs such as cognitive, psychological, economic, nutrition, and health. However, In general, these studies only focus on predictive analysis or correlation of variables, and no research has attempted to identify the casual relationship of the elderly independence factors. Therefore, this study aimed to determine the mechanism of the causal relationship of the factors that influence the independence of the elderly in ADLs using a casual method called the Stable Specification Search for Cross-Sectional Data With Latent Variables (S3C-Latent). In this research we found strong causal and associative relationships between factors.The causal relationship of elderly independence in ADLs was influenced by cognitive, psychological, nutritional and health factors and gender with α values respectively (0.61; 0.61;1.00, 0.65;0.70). Cognitive factors associated with psychological, economic, nutrition, and health with a value of α (0.77; 1.00; 1.00; 0.64). Furthermore, psychological factors associated with economy, nutrition, and health with a value of α (0.77; 0.95; 0.63). Bisides, economic factors are associated with nutrition and health with α values of ( 0.86; 0.75) and nutrition with health with α values of 0.64. The last association was found between nutritional factors and gender with a value of α 0.76. This research is expected to increase the independence of the elderly in carrying out daily activities.
El problema del espacio-tiempo en ‘La teoría de ciudad’.
Authors: Gasca Salas Jorge
Published: January 2021

En este artículo se indaga teóricamente, a modo desíntesis, acerca del problema complejo de la relaciónespacio-tiempo indispensable en la construcciónde los puntos de partida fundamentales parael estudio y la elaboración de la teoría social entorno a la ciudad, la teoría urbana y del espacio humanoen general, producido o edificado histórica,social y culturalmente. Se establecen con claridadlas implicaciones derivadas de la discusión filosóficade la que forman parte y se establece el nudoproblemático que se perfila en la teoría sobre suproblematización así como el esclarecimiento dela salida fáctica a tal problemática.Del problema filosófico (ontológico) se establecenlos canales histórico-antropológicos quepermiten la resolución humanista y concreta quedirigen la facticidad de la vida material y espiritual(objetiva y subjetiva) de los seres humanos que habitany edifican el espacio social. Destacamos ladimensión histórica como elemento relevante dela construcción del mundo material y del sentido(significatividad), sin lo cual la construcción demundo sería un entorno carente de humanismo yde todo fundamento.
Análisis de la técnica de administración de hemoderivados por enfermeras a pacientes adultos de los hospitales públicos de tercer nivel en Quito
Authors: Guzmán Velasco Magdalena , Morales Veneras Gladys
Published: January 2021

Contexto: la administración de hemoderivados es un procedimiento que reviste cuidado y amerita conocimiento, uso de técnicas adecuadas, cumplimiento de normas y protocolos. En hospitales del Ministerio de Salud Pública, los hemoderivados son administrados por profesionales de enfermería. Objetivo: evaluar el procedimiento de administración de hemoderivados por enfermeras a pacientes adultos del Hospital Eugenio Espejo y Hospital Ginecológico-Obstétrico Isidro Ayora, en el período abril-septiembre de 2016. Métodos: diseño descriptivo observacional ejecutado en 52 enfermeras de los hospitales Eugenio Espejo (n=41) e Isidro Ayora (n=11). Se aplicó un cuestionario con 16 reactivos para evaluar el nivel de conocimientos y una guía de observación para determinar destrezas y procedimientos aplicados en la administración de hemoderivados. Resultados: el 92,31%, de profesionales que respondieron el cuestionario coinciden que el consentimiento informado y la correcta identificación del paciente son imprescindibles antes de iniciar la transfusión de hemoderivados. Ante una reacción transfusional, el 90,38 % contesta que la primera acción a realizarse es detener la transfusión. El 100% mencionó que no dispone de un documento dónde realizar el registro y las anotaciones del procedimiento de administración de hemoderivados. Mediante la guía de observación, se determinó que el 80% de profesionales realizaron correctamente el procedimiento; al valorar los pasos previos a la administración de hemoderivados, la respuesta fue positiva en el 50% de casos; la verificación del correcto procedimiento luego de administrar hemoderivados fue superada por más del 50% de profesionales. Conclusión: los profesionales de enfermería desconocen la existencia de un formulario específico para registro de la administración de hemoderivados; en las unidades evaluadas, no existe un protocolo para la administración de hemoderivados.
Turkey's Involvement in the Syrian Conflict from a Defense Management Perspective
Authors: Zulham Muhammad , Saragih Hendra Maujana , Thamrin Suyono , Silitonga Tatar Bonar
Published: January 2021

This article will discuss Turkey's interests in resolving the Syrian conflict from the perspective of defense management. The Syrian conflict that demanded the resignation of President Bashar al-Assad made all countries in the world want to participate in conflict resolution. Turkey is no exception. Turkey is one of Syria’s close neighbors and is interested in it. National defense and economic interests are the main factors of Turkey in the Syrian conflict. The deployment of strategic depth of foreign policy has become the benchmark for conflict resolution. National defense management is a new science for realizing national interests, and its strategic environment must be reviewed. Therefore, as one of the important actors in the Middle East, Turkey has the aforementioned policies in realizing its national interests. This article uses qualitative methods in the conclusion. This article uses assumptions from realism to constructivism, national interest theory of national defense theory and national defense management theory. The conclusion of this article is that defense management (Assad's call for resignation) is based on preventing Syrian refugees from going to Turkey. A large number of refugees from Syria may undermine Turkey's security and stability. The aim is to maintain Turkey’s social and economic stability, which may be shaken by the existence of these refugee groups. Achieving this goal by providing support and weapon assistance to the Syrian rebels is considered a form of preventing the spread of the Syrian conflict. In addition, Turkey also hopes to join NATO
Securitization of Islam: A Case of Muslims in Cyprus
Authors: Ramadhan Riskiansyah
Published: January 2021

This paper analyzes how Muslims, as a religious community in the Republic of Cyprus, became an object of discrimination. Furthermore, the paper tries to understand and describe how Muslims’ daily lives are as a minority in the country through a case study approach. The study found that Islamophobic incidents often occur in the form of hate speech and discrimination in the workplace, schools, and even government institutions. These Islamophobic behaviors are an attempt to securitize Islam on the island. Moreover, prominent figures like political and religious leaders actively contribute to the phenomena of this securitization. Although religious freedom is protected by law, the Christian Greek Cypriot is not ready to accept multiculturalism. Thus, both government and society, and the community must support each other in bringing about peace in the country
PEMETAAN ZONA EKOLOGIS DAN IDENTIFIKASI GEOMORFOLOGI LANSKAP GEO-AREA CILETUH DI KABUPATEN SUKABUMI
Authors: Putri Hardini Aisyah Sabilla , Makalew Afra DN , Munandar Aris
Published: January 2021

Geopark Nasional Ciletuh terletak di Geo-area Ciletuh, saat ini sangat dipromosikan dan sedang diupayakan untuk mendapatkan pengakuan dari UNESCO sebagai Global Geopark Network (GGN) pada tahun 2016, tetapi sampai sekarang belum menerima keputusan. Geo-area Ciletuh memiliki batuan khas yang terbentuk dari dua fragmen kerak bumi, lempeng samudera dan lempeng benua. Di sisi lain, keunikan dan keindahan sumber daya alam yang dimiliki oleh Geo-area Ciletuh dapat berdampak negatif pada dirinya sendiri. Penelitian ini bertujuan untuk mengidentifikasi zona ekologi lanskap dan pendekatan geomorfologi sebagai cara untuk mengatasi masalah dan mengantisipasi dampak negatif di masa depan. Zona ekologis kawasan Geo-area Ciletuh tergolong sedang, yaitu 72,03% dari total luas dengan penggunaan lahan seperti pertanian, perkebunan, dan sawah. Hasil analisis morfometrik didominasi oleh relief bergelombang lemah 35,36% atau cukup curam sebesar 37,08%. Jenis utama batuan yang terkandung (diurutkan berdasarkan kekuatan struktur) adalah Batu Breksi Tufa (37,09%), Batupasir Kwarsa (13,80%), Batupasir Gamping (6,89%), Batupasir Tufa (15,53%), Tanah Liat (22,62%, dan Pantai). Aluvial Sludge (4,07%).
Persepsi dan Preferensi Masyarakat terhadap Infrastruktur Hijau Kota Yogyakarta
Authors: Pratiwi Ririk Darti , Fatimah Indung Sitti , Munandar Aris
Published: January 2021

Green infrastructure has been indicated as promising measure for adaptation to climate change impact, especially in densely populated cities where green spaces in a big scale were rare. Yogyakarta City expected would be a good representative case study, due the urban density and limited green spaces. In order to gain a better understanding and awareness of climate change impact and green infrastructure benefit, it is important to find out how people think about issues related to it. Perceptual studies can generate more understanding of the research areas, and knowing the preferences for implementing green infrastructure can help urban planners identify more effective policy responses. The objective of this study is to analyze public perceptions and preferences on climate change and green infrastructure in Yogyakarta City. The study area located in Yogyakarta City is divided into three groups based on the difference proportion of surface temperature. Data collecting conducted by online questionnaires, and samples selection used accidental sampling method. Descriptive statistics used to analyze descriptive data, chi square and Kruskal-Wallis analysis were used to determine the differences between three study areas, then logistic regression method used to find out the influence of socio-demographic factors. The results showed that there were not many significant differences between the 3 groups of study areas on community perceptions and preferences, while socio-demographic factors such as age, occupation, and gender affect some results of community perceptions and preferences. This study explains how community’s awareness of climate change impacts and understanding of the benefits of green infrastructure and local preferences, so that the benefits of green infrastructure can be accepted by the community effectively.
Studi Netnografi Tentang Keputusan Konsumen Menggunakan Jasa Pesan Antar Makanan Online di Sidoarjo.
Authors: Wahyu Ranny Buggy , Diana Nur , Putra Raditya Koesdijarto , Laksana Vinsa Adi , Hermawan Sigit
Published: January 2021

ABSTRACT Research Objectives - This study aims to determine the effect of prices, products, promotions and distribution on consumer decisions using online food delivery services. Design / Methodology / Approach - The study was conducted by distributing questionnaires to 200 respondents who used an online food delivery service application, namely the Go-Food, GrabFood, McDelivery, KFC Online Delivery and Pizza Hut Delivery applications. This research uses ethnographic methods Findings - The results found that the decision to use online food delivery service is significantly influenced by e-marketing mix with e-place factor as the most dominant factor, while of all these factors it is known that e-product factors do not significantly influence user decisions online food delivery service in Sidoarjo. Originality / value - This research examines the influence of the marketing mix of prices, products, promotions and distribution with different digital concepts from previous studies that still use the traditional marketing mix concept. Keywords: e-Marketing mix, Consumer decision, Online food delivery.
Analisis Faktor Penentu Struktur Modal: Studi Empiris Pada Perusahaan Kecil Menengah di Pasar Modal Indonesia
Authors: Gusni Gusni
Published: January 2021

Tujuan penelitian – Struktur modal masih menjadi isu yang kontroversial dan masih sering diperdebatkan dalam literatur keuangan perusahaan. Studi ini dilakukan dengan tujuan untuk mengetahui faktor-faktor penentu struktur modal pada perusahaan kecil menengah yang tercatat dalam indeks papan pengembangan (DBX) di pasar modal Indonesia.Desain/Metodologi/Pendekatan – Riset yang dilakukan ini merupakan jenis penelitian terapan (applied research) dengan pendekatan kuantitatif. Metode analisis data yang digunakan yaitu data panel terhadap 172 perusahaan yang menjadi sampel penelitian yang dipilih dengan teknik purposive sampling.Temuan – Hasil penelitian menunjukkan bahwa likuiditas memiliki pengaruh negatif terhadap struktur modal perusahaan kecil menengah, kemudian non-debt tax shield memberikan efek positif pada struktur modal perusahaan kecil menengah. Sementara itu, growth opportunities, tangibility, dan risiko bisnis tidak memberikan pengaruh terhadap struktur modal perusahaan kecil menengah. Bukti pada umumnya menunjukkan relevansi hipotesis pecking order dalam menjelaskan faktor penentu struktur modal perusahaan kecil menengah.Keterbatasan penelitian – Penelitian ini hanya menggunakan perusahaan kecil menengah yang terdaftar di pasar modal Indonesia dengan jumlah sampel yang masih terbatas selama periode 2013 – 2017, dan hanya memakai lima variabel independen. Diharapkan kepada peneliti lainnya untuk menggunakan sampel yang lebih luas dan variabel independen yang lebih banyak sesuai dengan teori dan hasil penelitian terdahulu.Originality/value – Penelitian ini menjelaskan tentang faktor penentu struktur modal pada perusahaan kecil dan menengah yang terdaftar dipasar modal Indonesia menggunakan variabel yang biasa digunakan untuk menjelaskan faktor penentu struktur modal pada perusahaan besar, sekaligus menjelaskan teori struktur modal yang sesuai untuk perusahaan kecil menengah. Riset tentang struktur modal perusahaan kecil menengah ini masih jarang diteliti di Indonesia.Keywords : Struktur Modal, Faktor Penentu, Perusahaan Kecil Menengah, Pasar Modal
PENGEMBANGAN MEDIA KOKAMI PADA PEMBELAJARAN TEMATIK DI KELAS V SEKOLAH DASAR KECAMATAN PEMENANG
Authors: Faturrahman Lalu Yani , Ermiana Ida , Khair Baiq Niswatul
Published: January 2021

Penelitian ini bertujuan untuk mengetahui kelayakan media Kokami sebagai media pembelajaran menurut validasi ahli dan uji coba terbatas. Jenis penelitian ini adalah R&D (Research and Development) dengan model pengembangan 4-D dari Thiagarajan yang terdiri dari tahap define (pendefinisian), design (perancangan), develop (pengembangan), dan disseminate (penyebaran). Instrumen yang digunakan berupa kuesioner validasi ahli media, validasi ahli materi, respon guru, dan respon siswa. Rata-rata jumlah skor (X) yang diperoleh dari validasi ahli media tahap II sebesar 99 yang terletak pada interval X > 92.4, sehingga termasuk dalam kategori sangat layak. Rata-rata jumlah skor (X) yang diperoleh dari validasi ahli materi tahap II sebesar 92 yang terletak pada interval X > 79.8, sehingga termasuk dalam kategori sangat layak. Rata-rata jumlah skor (X) yang diperoleh dari respon guru sebesar 144 yang terletak pada interval X > 126, sehingga termasuk dalam kategori sangat layak. Rata-rata jumlah skor (X) yang diperoleh dari respon siswa  sebesar 55 yang terletak pada interval X > 50.4,  sehingga termasuk dalam kategori sangat layak. Dengan demikian, dapat disimpulkan bahwa pengembangan media pembelajaran Kokami pada pembelajaran tematik sudah mememenuhi kategori kelayakan untuk digunakan sebagai media pembalajaran.
Users Acceptance of E-Government System in Sintok, Malaysia: Applying the UTAUT Model
Authors: Safiah Maznorbalia Anisa , Aiman Awalluddin Muhammad
Published: January 2021

E-government services have become a vital tool to provide citizens with more accessible, accurate and high-quality services and information. E-government system provides an efficient dissemination of information to people and eases people to communicate directly with government services. The utilization of ICT through e-government enhancing efficiency and effectiveness of service delivery in the public sector. The system is regarded as one of the vital elements to be a developed country. The application of e-government indicates the readiness and ability of the nation utilizing technology within public administration periscope. Although the Malaysian government has introduced e-government for many years, its acceptance still not very high. Therefore, this paper studies the key factors of Malaysian citizens’ in Sintok, Kedah, a semi- rural area on approval on e-government services based on the Unified Theory of Acceptance and the Use of Technology (UTAUT Model). The survey data was collected from 83% respondents to measure people understanding and awareness toward e-government system. The results show that there is an excellent understanding among Malaysian towards e-government system.
Structural and functional condition of the myocardium and the relationship of metabolic disorders in patients with chronic kidney disease
Authors: Kazakova I. A. , Ievlev E. N. , Glushkov I. A. , Giyazov М. I.
Published: January 2021

Purpose. Study of the structural and functional characteristics of the heart in patients receiving long term hemodialysis (HD) treatment, and the identification of links with bone mineral, lipid disorders and anemia.

Material and methods. A total of 160 patients with chronic kidney disease (CKD) of the 5th dialysis (5D) stage (70 men, 90 women) who were treated in the hemodialysis departments of Izhevsk were examined. The average age of patients is 52.9 ± 2.0 years old (31 to 78 years old). The procedures were performed 3 times a week for 4–4.5 hours. The inclusion criteria were the duration of dialysis therapy for at least one year and the availability of informed consent. The adequacy index Kt / V amounted to1.56 ± 0.2. Echocardiographic examination assessed the structural and functional parameters, calculated Left Ventricular Mass, LVM index, relative thickness index, “inner membrane”, fractional-shortening of the middle fibers. A study of general clinical indicators of mineral-bone disorders, Lipemic index, erythrocytes was carried out.

Results. Violation of left ventricular (LV) geometry was found in 140 (87.5%) patients with 5D CKD stage. Concentric and eccentric hypertrophy prevailed. No significant dependence on patient’s sex was revealed. Patients with eccentric hypertrophy showed high rates of inter-dialysis weight gain (p < 0.05) and ultrafiltration (p < 0.05). In patients with concentric hypertrophy, high indicators of calcium-phosphorus metabolism (p < 0.05), pre-dialysis systolic pressure (p < 0.05) and pulsatility (p < 0.05) were obtained. They also tended to have higher triglyceride indices and more pronounced anemia. The correlation of the structural and functional state of the myocardium with the level of phosphorus, calcium, calcium-phosphorus ratio and pulsatility was established.

Conclusions. In most patients with stage 5D CKD, LV remodeling with the prevalence of concentric and eccentric hypertrophy is observed. No significant gender differences were found. In patients with hypervolemia requiring more intense ultrafiltration during dialysis, eccentric LV hypertrophy was detected. High values of pre-dialysis and pulsatility, as well as levels of calcium and phosphorus, are observed with the concentric remodeling type. Correlations of structural changes in the myocardium with calcium-phosphorus metabolism were revealed. The data obtained may open new ways of influencing the regression of LV hypertrophy and improve the cardiovascular prognosis in patients receiving programmed hemodialysis treatment.
High-frequency electrical activity of the brain in patients with hemispheric ischemic stroke in combination with cognitive functions
Authors: Novikova L. B. , Sharapova K. M. , Dmitrieva O. E.
Published: January 2021

Abstract. The mathematical analysis of electroencephalography (EEG) provides information about the functional state of the brain, expands the understanding of the mechanisms of interaction between different areas of the brain, increases the possibilities of diagnostics and allows to put forward new tasks in the field of studying brain activity. Aim. To assess changes in the gamma-rhythm in patients with hemispheric ischemic stroke in the most acute and acute periods in comparison with cognitive and anxiety-depressive disorders. Material and methods. The study included 32 patients with hemispheric ischemic stroke. All patients underwent complex clinical, neurological, instrumental and laboratory studies. The study and recording of the EEG was carried out on the 1st and 21st days of the disease, lasting 20 minutes. The method of mathematical analysis was used to estimate the power spectra and the peak frequency of the gamma — rhythm of the background EEG. Results. As a result of the study, it was found that cognitive and anxiety-depressive disorders are detected already in the most acute and acute periods of ischemic stroke. In the mathematical analysis of the EEG statistically significant correlations between the gamma — rhythm index and cognitive, anxiety-depressive disorders in the frontal, central temporal areas are noted. Conclusion. The complex of examination of patients should include, in addition to clinical and neuropsychological research, mathematical analysis of EEG data.
Myelopathy associated with acute leukemia. Multidisciplinary view on the problem
Authors: Polushin A. Yu. , Krasnov V. S. , Bardakov S. N. , Skulyabin D. I. , Agafonov A. O. , Voydak I. V. , Bubnova E. V. , Sergiyenya O. V. , Ayubova B. I. , Bondarenko S. N. , Vladovskaya M. D. , Moiseev I. S. , Kulagin A. D.
Published: January 2021

Leukemia-associated myelitis is a rare but underestimated complication. It has a different etiology associated with both, the main disease and its treatment methods. It requires differential diagnosis with funicular myelosis, polyradiculoneuropathy, tumor and hemorrhagic formation, stroke, dysmetabolic manifestations, as well as with the consequences of treatment of the underlying disease using radiation, cytostatic, targeted therapy.It should also be differentiated from paraneoplastic myelopathy and progression of the underlying disease. However,with the help of neuroimaging methods, it can be detected more recently than a detailed clinical picture appears. A case report of myelopathy in a 31 year old patient with acute lymphoblastic leukemia is presented. Treatment of the underlying disease was carried out with the use of chemotherapy, radiation therapy, allogeneic hematopoietic stem cell transplantation and targeted therapy. The nature of the disease,i.e. recurrent course of acute lymphoblastic leukemia, the variety of treatment methods, and the absence of focal changes in neuroimaging in the zone that determines clinical manifestations, made it necessary to consider a wide range of possible etiological factors for the development of myelopathy. Myelopathy was confirmed by MRI 2.5 months after the debut of neurological symptoms, which corresponds to modern concepts and time criteria for visualization in neurooncology. The article presents the criteria for diagnosing myelopathy, a complication of acute lymphoblastic leukemia. It should also be differentiated from However, with the help of neuroimaging methods, it can be detected more recently than a detailed clinical picture appears.
Analisis Paralelisasi Konverter Melalui Multi Input - Single Output Transformator Frekuensi Tinggi dengan MatLab Simulink
Authors: Fitriadi Fitriadi , Yandri Valdi Rizki , Herisanjani Herisanjani
Published: January 2021

Two parallel converters DC/AC with isolated control can be applied by a high frequency transformer with a switching pattern. However, the switching pattern and control technique of the converter needs more research so the process of electrical energy distribution on the parallel output side can produce the optimum value. Furthermore, in this research, parallelization method is applied by utilizing two converters in high frequency transformer with multi input-single output capability controlled by Matlab/Simulink. The input side of transformer consists of two full bridge converters while secondary side represents the parallelization of output side. Two converters DC/AC is simulated by phase shifted full bridge (PSFB) of switching pattern and voltage mode control (VMC) technique. The distribution condition of optimum energy is investigated by observation of influences of ON condition duration of each switching period cycle on input converter to ON condition duration of secondary transformer terminal. The ON condition duration of each converter with switching PSFB is the condition depends on shifted/delay phase of signal on gate control. According to this simulation, optimum ON condition occurs when shifted/delay phase of each gate control signal converter is 135° (α1=α2=135°) and this condition is more efficient than phase of gate control signal is 45° (α1=α2=45°). The simulation results show that larger α of converters give the optimum distribution.
Koordinasi Proteksi Arus Lebih Penyulang Tembuku terhadap Indeks Keandalan Sistem Distribusi 20 KV PT. PLN (Persero) ULP Bangli
Authors: I Wayan Sukadana  , Risma Fauziyah Ramadhani
Published: January 2021

Penyulang Tembuku dilengkapi peralatan proteksi over current relay (OCR) pada Recloser Tembuku dan rele PMT Outgoing Penyulang Tembuku di GI Gianyar. Berdasarkan data yang tercatat pada monitoring PLN UP3 Bali Timur, tiga dari empat kali gangguan yang terjadi pada Penyulang Tembuku disebabkan oleh kesalahan koordinasi pengaman sehingga terjadi pemadaman meluas. Hipotesa awal penyebab dari kesalahan koordinasi merupakan akibat dari rekonfigurasi jaringan Penyulang Tembuku. Dampak dari kesalahan koordinasi mempengaruhi salah satu kinerja indeks keandalan PLN ULP Bangli, yaitu pencapaian nilai SAIFI. Perhitungan arus hubung singkat menunjukkan nilai arus hubung singkat semakin besar setelah rekonfigurasi jaringan dikarenakan jarak penyulang yang semakin pendek. Hasil analisa dari setting eksisting menunjukkan bahwa waktu kerja antara PMT dan Recloser terlalu rapat, sehingga direkomendasikan untuk penyetelan ulang. Hasil perhitungan sebagai dasar rekomendasi diperoleh TMS PMT 0,19 s dan TMS Recloser 0,05 s dengan karakterisrik Standard Inverse. Analisa terhadap SAIFI menunjukkan jika kinerja proteksi sesuai dengan harapan, maka kontribusi pemadaman karena gangguan pada Penyulang Tembuku dapat ditekan sebesar 31% pada Triwulan I 2019.
Dewan Redaksi
Authors: Rohman Taufiq
Published: January 2021

Dewan Redaksi
Fiqh Pandemi: Tinjauan Kritis terhadap PP No. 21 Tahun 2020 tentang PSBB dengan Pendekatan Sadd al-Dhari’ah
Authors: Shodiq Ja'far , Ali Ridho Muh. Mahrus , Abror Mufidul
Published: January 2021

Presiden Indonesia memulai mengadakan pembatasan interaksi sosial mulai dari tingkat dasar sampai regional untuk mencegah penyebaran virus Corona di bebrapa wilayah Indonesia. Virus Corona adalah virus yang membahayakan dan pembatasan ini sangat penting sekali apalagi di wilayah-wilayah yang masyarakatnya tidak bisa diatur dan tidak memungkinkan untuk mencegah meluasnya virus tersebut di wilayah-wilayah itu. Karena virus Corona telah memakan korban lebih dari seribu orang. Data korban ini tertanggal 28 Maret 2020. Pembahasan Ini dianggap sebagai bagian dari pembelajaran normatif yg konseptual. Sedangkan tema dari pembahasan ini adalah; Regulasi tentang Penerapan Pembatasan interaksi sosial. Sasaran dari pembelajaran ini adalah; 1. Pengetahuan tentang kaidah-kaidah hukum di Indonesia yang mengatur tentang pembatasan interaksi sosial mulai dari tingkat lokal sampai regional. 2.Pengetahuan tentang pembatasan interaksi sosial ditunjumau dari sisi pemutusan mata rantai virus. Sedangkan hasil dari pembahasan ini adalah; 1. Regulasi yang dipakai presiden untuk pembatasan interaksi sosial pada peraturan pemerintah nomor 21 tahun 2020. Seperti pada ayat 1 pasal 4 yang didalamnya mencantumkan larangan bepergian ke sekolahan untuk belajar dan larangan bepergian ke tempat kerja untuk bekerja yang hal ini termasuk bagian dari pembatasan terhadap hak-hak kemanusiaan, 2. Pembatasan ini dinilai  menjadi wasilah untuk menjaga nyawa masyarakat Indonesia namun di sisi lain mencabut pembatasan ini hukumnya wajib.The President of Indonesia began to implement social restrictions ranging from local to regional level to prevent the spread of the Corona virus in several parts of Indonesia. The Corona virus is a dangerous one and these restrictions are very important, especially in areas where the community cannot be controlled and it is not possible to prevent the spread of the virus in these areas. Moreover the Corona virus has killed more than a thousand people. The Corona deaths data is dated March 28, 2020. This study is considered as part of conceptual normative one. While the theme of this study is the Regulation on the implementation of social interaction restrictions. The objectives of this study are; 1. the understanding of legal principles in Indonesia that regulate the social interaction restrictions from local to regional levels. 2. the understanding of social interaction restrictions viewed from the breaking of the chains of infection. While the results of this study are; 1. The regulation used by the president to implement social interaction restrictions are the government regulation number 21, 2020. As in paragraph 1, article 4, which includes the prohibition on going to school and traveling to work which is part of the restrictions on human rights, 2. These restrictions are considered to be a means of protecting the lives of the Indonesian people but on the other hand lifting the restrictions is obligatory.
Phytochemical Screening And Tyrosinase Inhibition Activity Of Leaves Cassia siamea L.
Authors: Sholikha Munawarohthus , Wulandari Ainun
Published: January 2021

Cassia siamea L. has been used traditionally as medicine and in previous studies had an IC­50 antioxidant activity of 144.12 µg / mL. Cassia siamea L. potential as a medicinal substance is thought to have chemical constituents such as saponins, anthraquinones, alkaloids, flavonoids, tannins, terpenoids and steroids. Indonesia, which is located in a tropical region with high temperatures and ultraviolet (UV) radiation, can cause skin disorders such as hyperpigmentation due to excess melanin synthesis. Tyrosinase enzymes can prevent or inhibit melanin formation. The purpose of this study was to determine the chemical content of Cassia siamea L. leaves extract with various solvents and the inhibitory activity of tyrosinase enzymes. In this study, the leaves of Cassia siamea L. were macerated with methanol as a solvent. The dry methanol extract was fractionated using the liquid-liquid method using aquadest, butanol and chloroform as solvents. The four dried extracts were then phytochemical screening to determine their chemical content. After that, the tyrosinase inhibition test was carried out in vitro with L-Dopa as a substrate using ELISA plate well reader at concentrations of 100, 1000 and 100000 ppm with three repetitions (triplo). The methanol extract had percent inhibition of 19.993 ± 1.125%, 28.984 ± 0.624%, 57.164 ± 0.623%, respectively; butanol fraction 25.914 ± 0.541%, 32.566 ± 0.767%, 52.120 ± 1.616%; chloroform fraction 19.920 ± 0.730%, 26.425 ± 0.937%, 62.865 ± 0.167% and aquadest fraction 23.830 ± 0.879%, 30.885 ± 0.778%, 67.471 ± 0.352%. Kojic acid had tyrosinase activity and acts more active than the other extract and fraction with 91.155±0.228% at 500 ppm. The butanol fraction had the highest percent inhibition at 100 and 1000 ppm which was thought to be due to the presence of alkaloids, tannins, flavonoids, steroids and terpenoids from the results of the phytochemical screening test.