bluuebunny/crossref_metadata_2025 huggingface dataset:
A retrospective comparative study of outcome with surgical excision and repair versus nonsurgical and ablative treatments for basal cell carcinoma
Authors: Mahajan Soniya , Kalaivani Mani , Sethuraman Gomathy , Khaitan Binod Kumar , Verma Kaushal Kumar , Gupta Somesh
Published: March 2021

Background:

There are few studies on basal cell carcinoma (BCC) from India. Long-term follow-up is available in only one study and the aesthetic outcome of treatment has not been evaluated in Indian patients.

Aims:

In this retrospective study on BCC, we compared treatment failure, recurrence rates and aesthetic outcomes on long-term follow-up between surgical excision and repair, and nonsurgical and ablative treatments.

Methods:

Records of patients with BCC treated in the dermatologic surgery clinic over the past 10 years were analyzed. Patients with histopathologically confirmed BCC who could be contacted were evaluated for recurrence, treatment failure, overall satisfaction and aesthetic outcomes by global aesthetic improvement scale.

Results:

Out of 98 patients, 72 were contactable. Four patients received both nonsurgical and ablative treatments and surgical excision and repair sequentially and were excluded. The mean age of patients was 57.9 ± 15.8 years (24–90 years) and the male: female ratio was 1.6:1. The most common site involved was the face (72.1%) followed by trunk and scalp, and the most common type of BCC was the pigmented superficial type (33.8%), followed by the pigmented noduloulcerative type (16.2%). There was no significant difference between the groups in the number of high-risk cases. The mean follow-up period was 37.1 ± 31.4 (range, 4–120) months. Fifty one patients were treated with surgical excision and repair, and 17 with nonsurgical and ablative treatments (9-imiquimod, 5-cryotherapy, 4-radiotherapy). Treatment failure was seen in 5 (7.4%) patients, all in the nonsurgical and ablative treatments group (P = 0.0006). Recurrence was seen in 2 (2.9%) patients, both in the surgical excision and repair group (P > 0.05). Mean patient satisfaction was significantly higher with surgical excision and repair, though there was no significant difference in the Global Aesthetic Improvement Scale between the groups.

Limitations:

The sample size was low. Only telephonic and pictorial assessments were done where the patient could not come for follow-up.

Conclusions:

Surgical excision and repair was associated with better outcomes than nonsurgical and ablative treatments. Treatment failures and adverse events were high with nonsurgical and ablative treatments. The recurrence rate was low.
Uji Aktivitas Afrodisiaka Infusa Kulit Buah Semangka (Citrullus lanatus)
Authors: Budiawan Antonius
Published: March 2021

Buah semangka (Citrullus lanatus) secara empiris telah digunakan sebagai afrodisiaka dengan cara merebus kulit buahnya. Tujuan penelitian ini adalah untuk mengetahui efek afrodisiaka sediaan infusa kulit buah semangka. Penelitian dilakukan dengan membagi 25 ekor tikus putih jantan galur Wistar dalam 5 kelompok uji masing-masing berisi 5 ekor tdd: kelompok I sebagai kontrol negatif (CMC Na 0,5%), kelompok II sebagai kontrol positif (X-Gra®), kelompok III diberi perlakuan sediaan infusa kulit buah semangka dengan dosis 500 mg/kgBB, kelompok IV diberi perlakuan sediaan infusa kulit buah semangka dengan dosis 1000 mg/kgBB, dan kelompok V diberi perlakuan sediaan infusa kulit buah semangka (Citrullus lanatus) dengan dosis 2000 mg/kgBB. Pengamatan efek afrodisiaka dengan parameter frekuensi climbing tikus putih jantan pada tikus betina yang diinduksi estrus dilakukan selama 7 hari mulai pukul 18.00 WIB. Hasil uji menunjukkan bahwa sediaan infusa kulit buah semangka (Citrullus lanatus) dapat memberikan efek afrodisiaka dengan parameter frekuensi climbing yang berbeda signifikan apabila dibandingkan dengan kelompok kontrol negatif (CMC Na 0,5%) dan pada sediaan infusa dengan dosis 1000 mg/kg BB tidak menunjukkan perbedaan yang signifikan dengan kelompok kontrol positif (X-Gra®).
Karakteristik penderita infeksi HIV/AIDS di klinik voluntary counseling and testing Lazarus RS St. Antonius Pontianak tahun 2017
Authors: Prawira Yuda , Uwan Willy Brodus , Ilmiawan Muhammad In’am
Published: March 2021

Latar Belakang: Human Immunodeficiency Virus (HIV) merupakan jenis retrovirus dari genus lentivirus, yang menginfeksi sel-sel kekebalan tubuh dan menyebabkan turunnya kekebalan tubuh manusia sehingga pada akhirnya dapat menyebabkan sekumpulan gejala penyakit yang disebut dengan Acquired Immune Deficiency Syndrome (AIDS). HIV merupakan salah satu penyakit infeksi utama penyebab kematian bagi seluruh dunia yang terus mengalami peningkatan secara signifikan. Metode: Penelitian ini menggunakan desain deskriptif observasional.Variabel penelitian ini adalah karakteristik sosiodemografi dan klinis penderita HIV/AIDS yang terdaftar di Klinik Voluntary Counseling and Testing (VCT) Lazarus Rumah Sakit Santo Antonius Pontianak sepanjang tahun 2017. Hasil: Terdapat 29 pasien yang memenuhi kriteria inklusi. Karakteristik penderita HIV/AIDS ditemukan kelompok usia terbanyak 25-49 tahun (82.76%), jenis kelamin laki-laki (62.07%), tingkat pendidikan sedang (37.93%), orientasi heteroseksual (96.55%), pekerjaan karyawan swasta (31.03%), status menikah (58.62%), asal daerah Kota Pontianak (55.17%), faktor risiko terbanyak heteroseksual (96.55%), infeksi oportunistik terbanyak kandidiasis (55.10%), kadarsel CD4+ terbanyak pada nilai <200 sel/mm3 (68.97%), stadium II (79.31%), lama terapi ARV selama 6-18 bulan (41.39%), dengan jenis ARV lini 1 (100%), efektoksisitas (-) sebesar 72.41% sedangkan sisanya efek toksisitas ARV terbanyak berupa mual (50%). Kesimpulan. Karakteristik penderita infeksi HIV/AIDS di Klinik VCT Lazarus Rumah Sakit Umum Santo Antonius berdasarkan karakteristik sosiodemografi terbanyak pada usia 25-49 tahun, jenis kelamin terbanyak pada laki-laki, tingkat pendidikan sedang, orientasi heterokseksual, pekerjaan karyawan swasta, berstatus menikah, dan berasal dari Kota Pontianak. Pada karakteristik klinis terbanyak memiliki faktor risiko heteroseksual, infeksi oportunistik kandidiasis, penderita terbanyak dengan kadar sel CD4+ <200 sel/mm3, dengan stadium II, lama terapi ARV selama 6-18 bulan dengan jenis ARV lini 1, lebih banyak penderita tidak mengalami efek toksisitas ARV, dan gejala mual yang lebih sering dialami penderita.
Aktivitas Ekstrak Metanol Daun Sukun (Artocarpus altilis F.) sebagai Larvasida Aedes aegypti
Authors: Alfarizy Jefry , Ilmiawan Muhammad I , Andriani Andriani
Published: March 2021

Latar Belakang. Demam Berdarah Dengue (DBD) merupakan penyakit infeksi yang disebabkan oleh virus dengue melalui gigitan nyamuk betina Aedes aegypti. Penggunaan larvasida sintetik jangka panjang telah banyak menimbulkan resistensi. Daun sukun (Artocarpus altilis F.) memiliki kandungan metabolit sekunder berupa alkaloid, flavonoid, tanin dan saponin yang berpotensi sebagai biolarvasida. Metode. Penelitian ini merupakan penelitian eksperimental dengan post test only control group design. Digunakan 725 ekor larva Aedes aegypti instar III/IV, yang terdiri dari 125 ekor uji pendahuluan dan 600 ekor uji aktivitas larvasida. Uji aktivitas larvasida dibagi dalam 6 kelompok yang terdiri dari kelompok kontrol positif (temefos), kontrol negatif (akuades), serta 4 kelompok perlakuan dengan konsentrasi ekstrak metanol daun sukun 1,5%, 2,5%, 5%, dan 7,5%. Dilakukan 4 kali replikasi. Pengamatan dilakukan setelah 24 jam pasca perlakuan. Hasil. Persentase kematian larva yang dihasilkan oleh ekstrak metanol daun sukun konsentrasi 1,5%, 2,5%, 5% dan 7,5% secara berturut-turut adalah 50%, 52%, 65% dan 69%. Persentase kematian larva pada kontrol negatif sebesar 0%, sedangkan pada kontrol positif sebesar 100%. Terdapat perbedaan bermakna antara kematian larva yang ditimbulkan oleh berbagai kelompok konsentrasi ekstrak metanol daun sukun dengan kontrol positif. Kesimpulan. Ekstrak metanol daun sukun pada konsentrasi 1,5% hingga 7,5% memiliki aktivitas sebagai larvasida Aedes aegypti, namun lebih lemah jika dibandingkan dengan temefos.
Evaluation of the Temperature Dependence of Vaporization Enthalpy and its Correlation with Surface Tension by Machine Learning and Predictive Correlations
Authors: Alibakhshi Amin , Hartke Bernd
Published: March 2021

Temperature dependence of vaporization enthalpy is one of the most important thermophysical properties of compounds. In the present study, we theoretically developed relationships applicable to evaluation of vaporization enthalpy of compounds from diverse chemical families for a wide temperature range from melting point to the critical temperature. One outcome of the proposed approach is a relationship describing the correlation between the surface tension and vaporization enthalpy which outperforms the extensively applied Kabo method proposed for the same purpose.
Damming a Molecular Energy Reservoir: Ion-regulated Electronic Energy Shuttling in a [2]Rotaxane
Authors: Yu Shilin , Kurpryakov Arkady , Lewis James , Martí-Centelles Vicente , Goldup Stephen , Pozzo Jean-Luc , Jonusauskas Gediminas , McClenaghan Nathan
Published: March 2021

Bidirectional electronic energy shuttling is shown to occur between the molecular ring and axle components of a rotaxane. The engineered energetic and kinetic parameters give rise to long-lived, delayed luminescence. Perturbation of the quasi-isoenergetic ring and stopper chromophore excited-state energy levels upon cation binding influences the energy shuttling process, and hence luminescence read-out, representing a new potential mechanism in luminescent molecular chemosensor development
Ozone-Mediated Amine Oxidation and Beyond: A Solvent Free, Flow-Chemistry Approach
Authors: Skrotzki Eric , Vandavasi Jaya Kishore , Newman Stephen
Published: March 2021

Ozone is a powerful oxidant, most commonly used for oxidation of alkenes to carbonyls. The synthetic utility of other ozone-mediated reactions is hindered by its high reactivity and propensity to over-oxidize organic molecules, including most solvents. This challenge can largely be mitigated by adsorbing both substrate and ozone onto silica gel, providing a solvent-free oxidation method. In this manuscript, a flow-based packed bed reactor approach is described that provides exceptional control of reaction temperature and time of this reaction to achieve improved control and chemoselectivity over this challenging reaction. A powerful method to oxidize primary amines into nitroalkanes is achieved. Examples of pyridine, C–H bond, and arene oxidations are also demonstrated, confirming the system is generalizable to diverse ozone-mediated processes.
Programming: an introduction to the profession. In three volumes. Vol.2: Systems and Networks
Authors:   Lomonosov Moscow State University, Stolyarov Andrey
Published: March 2021

The book is aimed at people who learn programming on their own; it considers a wide range of issues, including introductory information, basic concepts and techniques of programming, the capabilities of the operating system kernel and the principles of its functioning, programming paradigms. It is supposed to use operating systems of the Unix family (including Linux) as an end-to-end working and training environment; a number of programming languages are considered: Pascal, assembly language (NASM), C, C++, Lisp, Scheme, Prolog, Hope and Tcl. The book includes information about the most important Unix system calls, including those for communication over computer networks; an introducton to the ncurses, FLTK and Tcl/Tk libraries is also given. The second volume ("Systems and Networks") starts with the fourth part, devoted to the C programming language; it also includes parts about basic Unix programming (input/output, process manipulation etc.); computer networking; parallel programming and dealing with shared data; basics of kernel internals.
Detection of unknown galaxy types in large databases of galaxy images
Authors: Margapuri Venkata Siva Kumar , Thapa Basant , Shamir Lior
Published: March 2021

Modern digital sky surveys utilize robotic telescopes that collect extremely large multi- PB astronomical databases. While these databases can contain billions of galaxies, most of the galaxies are “regular” galaxies of known galaxy types. However, a small portion of the galaxies is rare “peculiar” galaxies that are not yet known. These unknown galaxies are of paramount scientific interest, but due to the enormous size of astronomical databases they are practically impossible to find without automation. Since these novelty galaxies are, by definition, not known, machine learning models cannot be trained to detect them. In this paper, an unsupervised machine learning method for automatic detection of novelty galaxies in large databases is proposed. The method is based on a large and comprehensive set of numerical image content descriptors weighted by their entropy, and the farthest neighbors are ranked-ordered to handle self-similar peculiar galaxies that are expected in the very large datasets. Experimental results using data from the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) show that the ability of the method to detect novelty galaxies outperforms other shallow learning methods such as one-class SVM, Local Outlier Factor, and K-Means, and also newer deep learning-based methods such as auto-encoders. The dataset used to evaluate the method is publicly available and can be used as a benchmark to test future algorithms for automatic detection of peculiar galaxies.
Techniques for Using Virtual Reality Simulations for Self-Defense Skill Development
Authors: Apo John , Redei Alexander
Published: March 2021

KickVR is a training simulation designed to teach self-defense. With realistic training and a user-friendly guide, its aim is to help users learn how to better defend themselves in the real-world. Although the chances of being in a scenario where one may need self- defense are relatively low, self-defense is an important skill to have. The goal is to enable users to learn self-defense even if they do not have the time to attend in-person classes or do not have self-defense classes in their region. Virtual reality provides convenient access to self-defense training for users in their own homes. It also provides the feeling of realism by implementing the use of hand-tracking. The user’s real-world hands are rendered for the self-defense simulation rather than using Oculus hand controllers. This document will cover the current implemented features of KickVR and offer suggestions on areas of improvement based on an internal and external evaluation of software limitations.
Índice de sitio para plantaciones forestales comerciales de Cedrela odorata L. en Quintana Roo, México
Authors: García Cuevas Xavier , Toledo Chiu Carlos , Hernández Ramos Jonathan , Mendoza Muñoz Juan Ángel , Hernández Ramos Adrián
Published: March 2021

Para un manejo sostenible de las plantaciones forestales comerciales (PFC), es fundamental conocer la capacidad productiva del sitio para estimar su rentabilidad. La calidad de estación expresada en función del Índice de Sitio (IS) es una metodología confiable para clasificar las áreas forestales de acuerdo con su productividad. La mayoría de las PFC de Quintana Roo no tienen esa información, por lo que el objetivo del presente estudio fue ajustar y comparar ecuaciones de IS para PFC de Cedrela odorata en el estado de Quintana Roo. Con 1 943 pares de datos de altura dominante–edad (Ad-E) de entre uno y 28 años, se ajustaron tres modelos de crecimiento en el paquete estadístico SAS 9.4®. De acuerdo a los valores de la raíz del cuadrado medio del error (RCME), coeficiente de determinación ajustado (R2adj.) y significancia de los parámetros, además, del sesgo () y desviación agregada (DA %) para las estimaciones, se seleccionó el modelo de crecimiento de Weibull para la construcción de una curva guía y derivar curvas de crecimiento anamórficas y polimórficas de Ad. La edad base (E0) se estableció en 25 años y se definieron tres clases de IS a los 14 m, 17 m y 20 m. Los resultados estadísticos y el análisis gráfico de la tendencia de los datos estimados con los observados confirman que pueden utilizarse de forma confiable para clasificar las PFC por su productividad, o proponer tratamientos silvícolas acorde al crecimiento de C. odorata en Quintana Roo, México.
SOCIALLY ORIENTED BUSINESS AS A TOOL OF ANTI-CRISIS DEVELOPMENT OF TERRITORIES
Authors:   O.M. Beketov National University of Urban Economy in Kharkiv, Romanovska Anna , Velychko Viktoriia ,   O.M. Beketov National University of Urban Economy in Kharkiv
Published: March 2021

The article deals with the origins and formation processes of social responsibility in business. The social concepts of businesses and households cooperation are analyzed. The author clarifies the nature and peculiarities of the application of the concepts of economic responsibility, basic business strategy, duties and stakeholders in foreign countries. The analysis of foreign experience of development of social enterprises is given. Perspective directions of development of socially oriented enterprises are considered. The specific features of these concepts application in foreign companies with regard to the conditions of development in Ukraine are studied. Implementation directions of certain provisions of the following concepts in the domestic realities are offered. Essence and directions of introduction of socially responsible business are analysed in the article, the analysis of advantages and defects is conducted from socially responsible behavior of companies as for them so for the state and society.
THE EFFECTIVENESS OF ENSURING THE FINANCIAL STABILITY OF THE RESTAURANT BUSINESS IN THE CRISIS COVID-19
Authors:   Kyiv National University of Culture and Arts, Batchenko Liudmyla , Honchar Liliia ,   Kyiv National University of Culture and Arts, Beliak Andrii ,   Kyiv National University of Culture and Arts
Published: March 2021

The study identifies and systematizes key indicators and criteria for ensuring the financial stability of the restaurant business. The complex and thorough analysis of features of maintenance of financial stability of the enterprises of restaurant business on an example of one of restaurants of a chain of the Japanese kitchen of LLC «Sushiya» is carried out. After analyzing the key indicators of financial and economic activity of the restaurant, using the method of complex calculation of the rating of the financial condition of enterprises in the hospitality industry, the level of financial stability of the studied enterprise is determined. Based on the results of practice-oriented analysis, the ranking of financial management goals by the degree of impact on the financial stability of the enterprise. The mechanism of ensuring financial stability of restaurant business enterprises is modeled. The developed and substantiated mechanism is based on a unique methodology, which, unlike existing ones, is adapted to the field of hospitality, is carried out by specific tactical and strategic tools of financial management, based on the chosen type of enterprise policy; takes into account the dynamics of the main financial indicators of the enterprise, which is planned to implement the mechanism and the possible impact of factors of the external changing business environment. With the help of the matrix of financial strategies of J. Franchon and I. Romane, the position of the restaurant «Sushiya-Lavina» is determined and the methodological tools for improving the efficiency of its financial stability are substantiated.
FORMATION OF A CRISIS MANAGEMENT TEAM
Authors:   Kyiv National University of Trade and Economics, Molchanova Ellana
Published: March 2021

Today the issue of overcoming crises in companies becomes relevant. Most Ukrainian methods suggest forming anti-crisis teams at the time of the crisis. However, this proposal does not take into account the peculiarities of the psychological state of people at the time of the crisis. This statement is false. At the stage of creating a company, the management should already think about creating an anti-crisis team. We are not talking about crisis planning at the newly created enterprise. We are talking about the fact of the crisis under the influence of external or internal factors. Therefore, this research shows how American managers form a team and what are the functional responsibilities of each member team.
STABILIZATION OF THE NATIONAL CURRENCY RATE IN ENSURING ANTI-CRISIS DEVELOPMENT AND ECONOMIC SECURITY OF UKRAINE
Authors:   Mykolaiv Regional Council, Miroshnychenko Oleksii
Published: March 2021

The results of the study of the reasons for the decrease in the value of the national currency of Ukraine - the hryvnia are presented. A study of the theoretical foundations, political aspects and economic patterns of the devaluation of the hryvnia. The dynamics of consumer prices and the exchange rate of hryvnia to foreign currencies during 1992-2020 is studied. An analysis of the dynamics of the purchasing power of the hryvnia and the exchange rate is given. The inflationary nature of the positive dynamics of Ukraine's GDP is proved. Conclusions on the relationship between inflation and devaluation are presented. The necessity of ensuring the stability of the monetary unit in order to ensure anti-crisis development and increase the level of economic security of Ukraine is proved.
Implementasi Kebijakan Program Indonesia Pintar (PIP)
Authors: Rakista Putri Mutiara
Published: March 2021

Implementasi kebijakan publik merupakan merupakan suatu kegiatan yang dimaksudkan oleh seorang pelaksana atau implementor dengan tujuan untuk merealisasikan suatu program pemerintah sehingga menunjukkan hasil atau mencapai tujuan yang ingin dicapai. Program Indonesia Pintar adalah pemberian bantuan tunai dari pemerintah kepada anak usia sekolah dari keluarga kurang mampu. Tujuan dari Program Indonesia Pintar adalah meningkatkan akses bagi anak usia 6 sampai dengan 21 tahun untuk mendapatkan layanan pendidikan, Mencegah peserta didik dari kemungkinan putus sekolah dan menarik siswa putus sekolah atau tidak melanjutkan agar kembali mendapatkan layanan pendidikan. Penelitian ini terfokus pada dampak program indonesia pintar pada tingkat sekolah dasar. Metode penelitian yang digunakan dalam penelitian ini adalah metode kualitatif. Penelitian ini dilakukan pada tingkat sekolah dasar di Kabupaten Banyumas. Metode analisis data yang digunakan adalah metode analisis interaktif. Hasil Penelitian menunjukan bahwa Implementasi Program Indonesia Pintar pada tingkat Sekolah Dasar di Kabupaten Banyumas sudah berjalan dengan baik hal ini ditandai dengan proses pelaksanaan program yang dilakukan sesuai dengan tujuan dan SOP yang berlaku.

Implementasi kebijakan publik merupakan merupakan suatu kegiatan yang dimaksudkan oleh seorang pelaksana atau implementor dengan tujuan untuk merealisasikan suatu program pemerintah sehingga menunjukkan hasil atau mencapai tujuan yang ingin dicapai. Program Indonesia Pintar adalah pemberian bantuan tunai dari pemerintah kepada anak usia sekolah dari keluarga kurang mampu. Tujuan dari Program Indonesia Pintar adalah meningkatkan akses bagi anak usia 6 sampai dengan 21 tahun untuk mendapatkan layanan pendidikan, Mencegah peserta didik dari kemungkinan putus sekolah dan menarik siswa putus sekolah atau tidak melanjutkan agar kembali mendapatkan layanan pendidikan. Penelitian ini terfokus pada dampak program indonesia pintar pada tingkat sekolah dasar. Metode penelitian yang digunakan dalam penelitian ini adalah metode kualitatif. Penelitian ini dilakukan pada tingkat sekolah dasar di Kabupaten Banyumas. Metode analisis data yang digunakan adalah metode analisis interaktif. Hasil Penelitian menunjukan bahwa Implementasi Program Indonesia Pintar pada tingkat Sekolah Dasar di Kabupaten Banyumas sudah berjalan dengan baik hal ini ditandai dengan proses pelaksanaan program yang dilakukan sesuai dengan tujuan dan SOP yang berlaku.
Organization of volunteer activities during the COVID-19 pandemic
Authors:   federal state budget educational institution of higher education «Saint Petersburg State University of Culture», Paklina E. A.
Published: March 2021

In recent years, there has been a tendency for the active growth of volunteer (volunteer) activities not only in Russia, but also abroad. Volunteering is one of the most effective ways to solve socially significant tasks of the state. At present, it is already difficult to imagine any sphere of human activity without the participation of volunteers (volunteers). The author analyzed the organization of volunteer (volunteer) activities during the COVID-19 pandemic in Russia and abroad. Particular attention in the article is paid to specific examples of the activities of volunteer organizations in large cities of Russia (Moscow, St. Petersburg, Nizhny Novgorod). The results of a questionnaire survey of participants of volunteer organizations are presented, the leading motives of their activities are revealed. Volunteer experience in other countries is characterized, similarities and differences are revealed.
Traditions of decorative and applied arts in the Kazan province (XVI–XX centuries)
Authors:   Institute of Language, Literature and Arts named after G. Ibragimov (Academy of Sciences of the Republic of Tatarstan), Yusupov R. R. , Zinnurova A. F. ,   Kazan State University of Architecture and Engineering
Published: March 2021

The article considers issues of development of Tatar and Russian decorative and applied arts in the Kazan province in the pre-revolutionary period. The specificity of the two national art trends, the differences and the reasons for the peculiarities are highlighted. The prerequisites for the professional training of craftsmen are investigated. It is proved that arts and folk crafts are closest to the academic fi ne arts. Convincing evidence is given that art education by the process of mastering professional skills and aesthetics in a particular form of art, which was originally carried out in Moscow and St. St. Petersburg acquired its special significance with the opening of such educational institutions in the Kazan province itself and contributed to the mutual enrichment and interpenetration of Tatar and Russian arts and crafts.
Textbook by professor Svetlana Nikolaevna Ikonnikova
Authors:   federal state budget educational institution of higher education «Saint Petersburg State University of Culture», Mukhin A. S.
Published: March 2021

Book review: Ikonnikova S. N. History of Cultural Studies: the textbook for acad. bachelor’s degree. – 3rd ed., rev. and exp. M.: Yurayt, publ. house, 2018. 416 p. (Series: Bachelor. Academic course). – ISBN 978-5-534-06217-5
Students Motivation and Mathematical Problem Solving Enhancement through SFAE (Student Facilitator and Explaining) in Problem-Solving Strategies
Authors: Trisnawati Trisnawati , Yanuarto Wanda Nugroho
Published: March 2021

This study was employed to enhance learning motivation and mathematical problem-solving abilities of class VIII A students of SMP Negeri 7 Purwokerto through SFAE learning with problem-solving strategies. The subjects of this study were 31 students of class VIII A SMP Negeri 7 Purwokerto. This study is a Classroom Action Research (CAR), which was conducted collaboratively and participative. The action research was carried out in 3 cycles, with each cycle consisting of 2 meetings. Students were given a questionnaire to measure learning motivation and a test to measure their mathematical problem-solving abilities at the end of each cycle. Data collection techniques in this study include observation, questionnaires, tests, and documentation. Data analysis was carried out by descriptive qualitative and quantitative. The finding showed that implementing of SFAE learning with problem-solving strategies could increase students’ learning motivation and mathematical problem-solving abilities. The study found that (1) The average percentage of the overall learning motivation questionnaire is steadily increased from 61.71% in cycle one to 68.10% in cycle two and 76.03% in cycle three. (2) The average percentage of student tests for problem-solving abilities in cycle one also significantly increases from 35.21% to 53.20% in cycle two and 79.61% in cycle three. The average student test rate for each indicator of problem-solving ability has met the study’s success criteria.
Students Mathematics Learning Achievement from Mathematics Teacher Performance and Principal Managerial Competencies Point of View
Authors: Isnawan Muhamad Galang , Wicaksono Arief Budi
Published: March 2021

Principals and teachers are two important elements that must be at the forefront of improving the quality of students in the school. Do these two things affect learning achievement? It is what the researchers answered in this study. Therefore,this study aims to describe the influence of mathematics teacher performance and principal managerial competence on student mathematics learning achievement. The approach in this study is a quantitative (survey). The population was all mathematics teachers and public high school students in Central Lombok, about 793people. Using the purposive sampling technique obtained a sample of this study were all mathematics teachers in one of the public high schools in Central Lombok, totaling 187 people. The instruments used were mathematics teacher performance and principals managerial competency questionnaires, and computer-based national exam tests to measure student mathematics learning achievement. Data analysis was performed using a regression test, namely the t-test and the F-test, to see the effect of mathematics teacher performance and principal managerial competence (individually and together). The results showed that mathematics teacher performance affected mathematics learning achievement with a t-value of 16.295, and principal managerial competence affected mathematics learning achievement with a t-value of 18.831. Furthermore, mathematics teacher performance and principal managerial competence influence student mathematics learning achievement of public senior high school students in Central Lombok with an F-value of 211.482.
Developing Learning-based Instagram Media on Derivative
Authors: Dhiwangkara Bimba , Arcana I Nyoman , Ayuningtyas Annis Deshinta
Published: March 2021

This study aims to develop learning media using Instagram and determine its feasibility. This research method used Research and Development (RD) with the ADDIE development model through 5 stages, namely Analysis, Design, Development, Implementation, and Evaluation. The research was conducted at SMA N 1 Ngemplak. The data collection technique used a validation questionnaire conducted by two teachers and one lecturer and students response questionnaire. The data analysis techniques were descriptive qualitative and quantitative. The result of this research was a derivative learning media in the form of videos presented through Instagram. The feasibility test results showed that the learning media had met three eligibility criteria for learning media. The assessment of media and material experts showed that learning-based Instagram media was in the good category. Based on students' assessment, learning media's feasibility based on Instagram social media was good to use. The correlation between the students response questionnaire and the learning outcome test also showed a unidirectional and significant correlation. It indicated that there was a correspondence between the questionnaire scores and the learning outcome test scores. Based on these results, learning media through Instagram social media is suitable for the learning process.
Particle creation in the context of the emergent universe
Authors: Hamil B. , Merad M. , Birkandan T.
Published: March 2021

We study the mechanism of particle creation in the context of the emergent universe (EU) scenario which is privileged by certain important characteristics such as the absence of time-like singularity. EU asymptotically coincides with an Einstein static model in the infinite past and it approaches to a de Sitter expansion phase at late times. By introducing the conformal time, we obtain the solution of the Klein-Gordon equation and by applying the "in" and "out" states method, the total number of produced particles and the total energy associated with them are determined.
Ultrafast dynamics of carriers and phonons of photoinjected double-plasma in aluminium nitride
Authors: Rodrigues C. Gonçalves , Luzzi R.
Published: March 2021

Aluminum nitride is attracting great interest of the industry and scientific community due to its interesting properties. In this paper is performed a theoretical study on the ultrafast transient transport properties of photoinjected carriers in wurtzite AlN subjected to electric fields up to 80 kV/cm. For this, the Nonequilibrium Statistical Operator Method was used. The evolution towards the steady state of drift velocity of carriers (electrons and holes) and nonequilibrium temperature (carriers and phonons) subpicosecond scale were determined.
Identification of focal epileptic regions from electroencephalographic data: Feigenbaum graphs
Authors: Guarneros G. , Pérez C. , Montiel A. , Rojas J. F.
Published: March 2021

In the study of problems related to epilepsy analyzing electroencephalograms data is of much importance to help, one hand, to its diagnosis, and, another hand in the possibility of diminishing errors in surgery. We do this analysis making the Feigenbaum graphs for real electroencephalographic signals data sets and calculating characteristic networks (graph) quantities, such as average clustering, degree distribution, and average shortest path length. We manage to characterize two different data sets from each other, from data sets corresponding to focal and non-focal neuronal activity both time out of an epileptic seizure. This method enables us to identify sets of data from epileptic focal zones and suggest our approach could be used to aid physicians with diagnosing epilepsy from electroencephalographic data and/or in an exact establishment of the epileptic focal region for surgery.
Brock University
Authors: Virgulti Ernesto
Published: March 2021

Although Brock University does not have a specific program in Medieval Studies, it does offer a number of courses dealing with die Middle Ages in various departments of the Faculty of Humanities. The Dean of the Faculty, Dr Rosemary Drage Hale, has herself devoted a considerable amount of her research to the Middle Ages, especially in the areas of medieval women’s religious experience and medieval sermons.
The Effect of Auction Game on Students’ Understanding of Simple Past Tense
Authors: Abbas M. Fadhly Farhy , Risnawati Risnawati , Kasriyati Destina
Published: March 2021

The aim of this research was to investigate the effect of auction game on students’ understanding of simple past tense at the eighth grade of MTs. Jabal Nur Kandis. The population of this research was the second year students of MTs. Jabal Nur Kandis consisting of two classes which had 48 students. The sample of this research were VIII A (24 students) as experimental class 1 and VIII B (24 students) as experimental class 2. The researchers applied auction game variation 1 in experimental class 1 while; in experimental class 2 the researcher applied auction game variation 2. The data was the students’ scores in simple past tense taken from the post test. The data was analyzed by using Normality-test, Homogeneity-test, T-test and N-gain. After conducting this research, it was found that the result of n-gain average score in experimental class is 0.39. The Assimp.Sig (2-tailed) is 0.195. So the hyphothesis H01 was accepted and Ha1 is rejected. With the Assimp.Sig (2-tailed) >0.05 it meant there was no any significant effect of the implementation of Auction game (variation 1 and variation 2) on students’ understanding of simple past tense. In conclusion, there was no any significant effect of the implementation of auction Game on students understanding of simple past tense at the eighth grade of MTs. Jabal Nur Kandis. But, auction game can improve students’ understanding on simple past tense.
The Effectiveness of Writing Warm-Ups Strategy to Students' Writing Skill
Authors: Ramasari Maria
Published: March 2021

Writers need to have a warming up before beginning to write. It is the fundamental thing to be done by students as writers for stimulating their critical thinking. It is also useful for them to be easier in developing their ideas at writing activities. The objective of this research investigation was to find out an effectiveness of writing warm-ups strategy on students’ writing skill: report text. Research method used was pre-experimental with only one group pre-test and post-test design. Population was all the seventh grade students of SMP Negeri H. Wukirsari which consisted of 139 students. Sample was taken through cluster random sampling, and number of sample was only 28 students. Written test (report text) was given to students’ sample in collecting the data. In analyzing the data, researcher used individual score, Mastery Minimum Criteria, and matched t-test. Based on the data analysis, the students’ mean score of pre-test was 54.67 and students’ mean score of post-test was 75.10. Result of t-test was 3.88 and t-table was 1.701 since the degree of freedom significant level of it one tailed test. Hence, matched t-test was higher than t-table. For other words, it meant that alternative hypothesis was accepted, and null hypothesis was rejected. In conclusion, it was completely effective to apply writing warm-ups strategy on students’ writing skill of report text.
A propos de la correspondance adressée a Heinrich Morf, conservée à la Bibliothek Jud de l'Université de Zurich
Authors: Trachsler Richard
Published: March 2021

Das Romanische Seminar der Universität Zürich bewahrt in der Forschungsbibliothek Briefe und Unterlagen von Heinrich Morf (1854–1921) auf, dem eigentlichen Begründer des Romanischen Seminars. Dank eines bereits 1960 erfolgten Legats seiner Tochter Gertrud Lehner-Morf
konnten mehr als 660 Dokumente aller Art in die Bibliothek überführt werden, jedoch ist das Material erst in den letzten Jahren gesichtet und geordnet worden. Der vorliegende Beitrag versucht, den Fonds Morf vorzustellen und das Potenzial dieses Torsos einer Gelehrtenkorrespondenz
für die Erkenntnisse der Forschung zu erläutern. Die interessantesten Dokumente stammen aus der Berliner Zeit und bieten Einblick in die Organisation der Erhebungen in den Gefangenenlagern, deren Leitung für den Bereich der Romanistik Morf oblag.
Roles and their three facets: A foundational perspective
Authors: Toyoshima Fumiaki
Published: March 2021

Roles remain nebulous entities, notwithstanding their extensive interdisciplinary research. This paper argues through a meta-ontological conceptual tool of grounding that there are three key facets of roles: a role position, a role specification, and a role potential. A foundational perspective on roles can be specified by “role choices” as to which facet of roles is primary. Role choices are illustrated with theories of roles that are built in compliance with four well-known upper ontologies: GFO, DOLCE, BFO, and UFO. The relationship between such three facets of roles and the GFO-based three kinds of roles (relational, processual, and social) is closely examined. These three facets are also comparatively studied from linguistic (e.g. ‘have a role’ versus ‘play a role’) and methodological (realism versus conceptualism regarding ontology design) perspectives. Furthermore, the family resemblance view of roles as “epistemic trackers” is proposed: the general notion of role is merely (partially) unified by its three facets and helps to keep track of some entity with respect to its role-related aspects. Finally, defining characteristics of roles in conceptual modeling are considered in terms of the three-facet theory. This work provides the grist for future practical development of an ontological module for generic role representation.
YouTube Videos on Parkinson’s Disease are a Relevant Source of Patient Information
Authors: Braczynski Anne K. , Ganse Bergita , Ridwan Stephanie , Schlenstedt Christian , Schulz Jörg B. , Hoog Antink Christoph
Published: March 2021

Background: Parkinson’s disease (PD) is the most frequent movement disorder. Patients access YouTube, one of the largest video databases in the world, to retrieve health-related information increasingly often. Objective: We aimed to identify high-quality publishers, so-called “channels” that can be recommended to patients. We hypothesized that the number of views and the number of uploaded videos were indicators for the quality of the information given by a video on PD. Methods: YouTube was searched for 8 combinations of search terms that included “Parkinson” in German. For each term, the first 100 search results were analyzed for source, date of upload, number of views, numbers of likes and dislikes, and comments. The view ratio (views / day) and the likes ratio (likes * 100 / [likes + dislikes]) were determined to calculate the video popularity index (VPI). The global quality score (GQS) and title - content consistency index (TCCI) were assessed in a subset of videos. Results: Of 800 search results, 251 videos met the inclusion criteria. The number of views or the publisher category were not indicative of higher quality video content. The number of videos uploaded by a channel was the best indicator for the quality of video content. Conclusion: The quality of YouTube videos relevant for PD patients is increased in channels with a high number of videos on the topic. We identified three German channels that can be recommended to PD patients who prefer video over written content.
Design and comparison of scheduling strategy for teleconsultation
Authors: Qiao Yan , Ran Lun , Li Jinlin , Zhai Yunkai
Published: March 2021

BACKGROUND: Telemedicine is playing an increasingly more important role in disease diagnosis and treatment. The market of telemedicine application is continuously promoted, thus bringing some issues on telemedicine operations management. OBJECTIVE: We aimed to compare the teleconsultation scheduling performance of newly designed proactive strategy and existing static strategy and explore the decision-making under different conditions. METHODS: We developed a discrete-event simulation model based on practical investigation to describe the existing static scheduling strategy of teleconsultation. The static strategy model was verified by comparing it with the historical data. Then a new proactive strategy was proposed, whose average waiting time, variance of waiting time and completed numbers were compared with the static strategy. RESULTS: The analysis indicated that the proactive strategy performed better than static under the current resource allocation. Furthermore, we explored the impact on the system of both strategies varying arrival rate and experts’ shift time. CONCLUSIONS: Under different shift times and arrival rates, the managers of telemedicine center should select different strategy. The experts’ shift time had a significant impact on all system performance indicators. Therefore, if managers wanted to improve the system performance to a greater extent, they needed to reduce the shift time as much as possible.
Wireless parathyroid detection device using autofluorescence and smart glasses: A preliminary study
Authors: Ryu Chang Hwan , Seok Jungirl , Choi Yu Lim , Kim Seok-ki , Jung Yuh-Seog , Ryu Junsun
Published: March 2021

BACKGROUND: Autofluorescence imaging technology has been utilized for preserving or identifying parathyroid glands (PTGs) during thyroid surgery. We developed a wireless PTGs detection device linked with smart glasses that allows for real-time video recording and screen switching according to the light source. OBJECTIVE: This study aimed to confirm the feasibility of the device and whether it would help preserve the PTG during the surgery. METHODS: This prospective study was conducted in 30 patients with 66 PTGs. The device’s agreement with the physician’s judgment was evaluated, and we determined how many PTGs were preserved from thyroidectomy. RESULTS: The positive agreement rate for PTGs detection between the surgeon and device was 70.9%. Inadvertent parathyroidectomy was identified in surgical specimens of 6 patients (20%). No PTG was removed when it was confirmed by the device (0/39). Of the 27 glands not detected by the device, there was inadvertent removal of 6 PTGs. CONCLUSIONS: PTGs can be preserved successfully when the detection of them by the device is consistent with the surgeon’s discretion. A large-scale controlled study is necessary to demonstrate the practical effect of this device on hypoparathyroidism after thyroidectomy.
The utility of combined neuroendoscopic- and laparoscopic-assisted ventriculo- peritoneal shunt as a treatment for patients with communicating hydrocephalus
Authors: Song Zhijun , Chen Xiaolei , Sun Zhenghui , Li Fangye , Xue Zhe , Liang Yongping , Zhou Dingbiao
Published: March 2021

BACKGROUND: Ventriculo-peritoneal shunt (VPS) is one of the routine methods used to treat communicating hydrocephalus. OBJECTIVE: To sum up the clinical effectiveness of ventriculo-peritoneal shunt (VPS), assisted with neuroendoscopy and laparoscopy, for the treatment of patients with communicating hydrocephalus. METHODS: From January 2010 to 2014, we performed VPS surgery on 209 patients with communicating hydrocephalus, using neuroendoscopy and laparoscopy, which helped to implant the shunt catheter in a suitable position in the ventricles and abdominal cavity, respectively. The subsequent survival following the surgery was analyzed using Kaplan-Meier analysis. RESULTS: A total of 209 patients received 255 VPSs or revisions and all the operations were successfully completed. Open operation or oraniotomy was not needed for any technical complications, while 46 revisions were performed. After the operations, 203 patients with communicating hydrocephalus exhibited improvement of symptoms following surgery. The follow-up period ranged from one month to four years; the shunt surgery efficiencies were 91.0%, 86.7%, 83.9%, and 82.0% in the first, second, third, and fourth years, respectively. CONCLUSION: For ventriculo-peritoneal shunt, laparoscopy and neuroendoscopy can help to implant shunt catheter in a suitable position, in the ventricles or abdominal cavity, respectively. Hence, the combination of the two techniques can reduce the failure rate of VPS, and has an obvious impact on survival following the surgery.
Dysfunction of anterior insula in the non- affected hemisphere in patients with post- stroke depression: A resting-state fMRI study
Authors: Park Eunhee , Park Jang Woo , Min Yu-Sun , Lee Yang-Soo , Kim Byung-Soo , Kim Ju-Hyun , Lee Hui Joong , Lee Jongmin , Chang Yongmin , Jung Tae-Du
Published: March 2021

BACKGROUND: Post-stroke depression (PSD) is a consequential neuropsychiatric sequela that occurs after stroke. However, the pathophysiology of PSD are not well understood yet. OBJECTIVE: To explore alterations in functional connectivity (FC) between anterior insula and fronto-cortical and other subcortical regions in the non-affected hemisphere in patients with PSD compared to without PSD and healthy control. METHODS: Resting-state FC was estimated between the anterior insula and cortical and subcortical brain regions in the non-affected hemisphere in 13 patients with PSD, 12 patients without PSD, and 13 healthy controls. The severity of depressive mood was measured by the Beck Depression Inventory (BDI)-II. RESULTS: Patients with PSD showed significant differences in FC scores between the anterior insula and the superior frontal, middle frontal, and orbitofrontal gyrus in the non-affected hemisphere than healthy control or patients without PSD (P< 0.05). In post-hoc, patients with PSD showed higher FC scores between the anterior insula and the superior frontal region than patients without PSD (P< 0.05). Furthermore, alterations in FC of the superior frontal, middle frontal, and orbitofrontal gyrus were positively correlated with depression severity, as measured with the BDI-II (P< 0.001).