bluuebunny/crossref_metadata_2025 huggingface dataset:
The Perception of Jantho City 1 High School Students on Physics Learning Using Youtube Channel
Authors: Syahraini Yuni , Elisa Elisa , Halim A
Published: January 2022

This study aims to determine the perceptions of Jantho City 1 Senior High School students towards the use of the youtube channel as a medium for learning physics. This type of research is descriptive research. The approach used in this study is a qualitative approach, where the sample in this study were all 24 students of senior high school 1 Kota Jantho High School students. The data collection techniques used were questionnaires or questionnaires to obtain data on the perceptions of Jantho City 1 Senior High School students on the use of the youtube channel in physics learning. Processing data using the percentage formula (%). The results of the overall student show that 54% of students perceive strongly agree, 46% of students perceive agree, 0% of students have moderate perceptions, 0% of students perceive disagree, and 0% of students at SMA 1 Kota Jantho perceive strongly disagree with the use of media channels youtube in physics learning. Where the average student has a very good perception of learning physics using the youtube channel
The Influence of Gadget Use on Academic Achievement of 2016 Unsyiah Physics Batch
Authors: Hidayatika Nur Khairina , Mustafa Mustafa , Tarmizi Tarmizi
Published: January 2022

In this globalization era, communication tools are very fast examples. Gadgets are a communication tool that has many functions. Where the function is already using the different features. Gadgets considered more complete than other electronics because of its functionality and different. Gadgets examined included laptops and mobile phones. The approach used in this research is the quantitative study. In the approach comes from the students who actively use the gadget in the context lectured. Collection of activity data using questionnaires and student evidence. As for the CPI data analysis and processing used by the product moment correlation coefficient and linear regression simple shapes in which both the data intervals. Based on the analysis of data, a scoreprice r count is larger than a good table for the error of 5% and 1% (0.76 0.345 0.266), so that Ha is accepted and Ho is rejected. The conclusion of this research is there is a positive use of gadgets to force GPA student education physics, 2016. which is expected to help raise the GPA when the use of gadgets is positively.
The Difficulty Factors of Students to Understand Mathematics Physics 1 at Physics Education Department FKIP Unsyiah
Authors: Bustami Bustami , Ngadimin Ngadimin , Farhan Ahmad
Published: January 2022

This study aims to determine the factors that cause college students to experience difficulty in understanding Mathematics Physics I lectures and any material / subject from Mathematics Physics I subjects that college students experience difficulties. This research uses a qualitative approach. The subjects in this study were college students of FKIP Unsyiah Department of Physics Education 2017 with a population of 50 people . Data collection techniques through questionnaires (questionnaire) and interviews. The results of the study concluded that college student factors, KBM factors, and learning facility factors did not cause college students to experience difficulties in understanding Mathematics Physics I lectures and overall Mathematics Physics I material / subjects were less difficult for college students to understand. .Kata Kunci : Learning Difficulties, Physics Mathematics I
The Effects of Exercise Using Minnesota Strategy Problem Solving Model to Student Learning Outcomes and Critical Thinking Ability
Authors: Merisa NS , Halim A , Mahzum Elmi
Published: January 2022

This study aims to look at the effect of the Physics Problem Solving Exercise by using the "Minnesota Strategy" Problem Solving Model to improve Student Learning Outcomes and Critical Thinking Abilities in SMA 3 Seunagan. The approach used is a quantitative approach in the form of experimental research. Then the data is analyzed using N-gain and t-test. Hypothesis testing used by one-party test that is the right hand side, with criteria accepted by H1 if tcount ttable and H1 is rejected if tcount ≤ ttable. Hypothesis test results obtained for student learning outcomes data tcount = 4.18 and ttable = 1.68 and for critical thinking data tcount = 5.09 and ttable = 1.68 then it can be concluded tcount ttable, in other words H1 accepted. The conclusion of this research is that there is an influence on the use of Physics Problem Solving Exercises by using the "Minnesota Strategy" Problem Solving Model to improve Student Learning Outcomes and Critical Thinking Ability.Keywords: Minnesota Strategy, Learning Outcomes, critical thinking skills.
The Comparison of Multi Representation Based Module and Text Books on Black Principle Material in Physics Learning Reviewed from Student Retention
Authors: Mirzatullah Mirzatullah Mir , Halim A , Hamid Abdul
Published: January 2022

Retention was one of internal factors that influenced learning success. The low level of student retention needed tobe a concern of teachers and educational institutions. This study aimed to determine the differences in student retention abilities from the retest results between experimental class who were taught using a multi-representation based module and the control class students who were taught using textbooks on Black principle material. The approach used in this research was a quantitative approach with a quasi-experimental method. Data collection was done by tests using multiple choice questions. Purposive sampling used to select the samples, the sample in this study were 22 students of class XI MIA I as a control class and 22 students of class XI MIA II as an experimental class. Based on the results of data analysis, the retention score of the two classes in an interval of one week was excellent, but the experimental class students achieved higher score than the control class students with a difference of 4.42%. Hypothesis test results obtained tcount (1.71) ttable (1.68), mean reject Ho and accept Ha, which means that the retention score of experimental class students was better than the retention score of control class students.Keyword: Multi representation-based module, textbooks, student retention.
The Use of Social Media Instagram as Instructional Media for Physics Toward Student’s Learning Motivation
Authors: Mahzum Elmi , Farhan Ahmad , Ramadhani Eka
Published: January 2022

This research aims to determine the use of Instagram toward student’s learning motivation among class XI IPA 4 students at SMAN 2 Banda Aceh. The type of approach used in this research was qualitative. The method use of this research was experiment. the sample in this research were students of class XI IPA 4 at SMAN 2 Banda Aceh. Data collection techniques by using a learning motivation questionnaire. Analysis and data processing using a percentage equation. Based on the results and analysis of data based on the value range of the motivation level score, It was found that Instagram as a physics instructional media is beneficial to increase student motivation.Keywords: instagram, instructional media, and learning motivation
The Effects of Adversity Quotient And Spiritual Quotient on Teacher Performance
Authors: Muztaba Muztaba , Bahri Syamsul , Farizal Farizal
Published: January 2022

This study aims to examine and find out empirical data about the effect of adversity quotient and spiritual quotient on the performance of Al-Azhar Elementary School teachers, Depok City separately or simultaneously. In this study, the authors used a survey method with a correlational approach to quantitative data obtained from the research object. The type of analysis used is correlation and regression analysis which is described descriptively. The results of this study are: First, there is a positive and significant influence between adversity quotient and spiritual quotient of teachers in SD Al-Azhar 46 Depok City. Secondly, there is a positive and significant influence between spiritual quotient and teacher performance of Sd Al-Azhar 46 Depok City. There is a significant positive between Adversity Quotient and Spiritual Quotient. Fourth, there is a positive and significant influence between adversity quotient and spiritual quotient together (simultaneously) with the performance of teachers at SD Al-Azhar 46 Depok City.Keywords: Adversity quotient, spiritual quotient, teacher performance
Analysis Of Critical Thinking Ability Physics Education Students to Solve Geometrical Optics Problems
Authors: Octaviana Sarah , Hamid Abdul , Kasli Elisa
Published: January 2022

This research was conducted aiming to determine the critical thinking skills of Teacher Training and Education Department Syiah Kuala University physics students based on critical thinking indicators in solving optical geometry problems. This research uses a quantitative approach with descriptive research methods. The population of this research is the 2016 Physics Education students as many as 57 students with 40 students as a sample of respondents. Data collection was performed using a test consisting of 5 essay questions that have been validated for use as an instrument for critical thinking tests. The data obtained is then averaged per indicator and then presented and then categorized using the criteria table for critical thinking skills. The results show the average percentage of values obtained by students in solving optical geometry problems for each critical thinking ability is 43% in the ability to provide an explanation simple, 33% in the ability to build basic skills, 25% in the ability to conclude, 33% in the ability to provide further explanation, and 13% in the ability to formulate strategies and tactics. Based on these results it can be concluded that the critical thinking ability of students based on each indicator in the physics education student at Teacher Training and Education Department Syiah Kuala University is still low.
The Implementation of CORE Type Cooperative Learning Model to Improve Students’ Learning Outcome on Integrated Science Module in Junior High School of Pos Keadilan Peduli Umat (PKPU)
Authors: Kasli Elisa , Yusrizal Yusrizal , Lestari Windi
Published: January 2022

The study aims to identify students’ learning outcome, teachers’ skills in managing class, along with students’ response towards the implementation of CORE type cooperative learning model. The study employed Action Research using a descriptive statistical approach. The study was conducted through 4 stages: planning, acting, developing, and reflecting. The participants were 30 second-year Junior High School students of PKPU, and the data were elicited through the scores of students’ learning outcomes, observation sheet of teachers’ skills in managing class, and students’ response sheets toward CORE type cooperative learning model. The finding indicated that students’ learning outcomes improve from cycle 1 to cycle 3: in cycle 1, the individual completeness is 37% and the classical completeness is 40%; in cycle 2, the individual completeness is 63% and the classical completeness is 70%; in cycle 3, the individual completeness is 93% and the classical completeness is 90%. Moreover, teachers’ skills in managing the class improve from moderate to a very good category, along with positive responses indicated by the students, where all students show positive responses towards the implementation of CORE type cooperative learning model. It is concluded that the model can significantly improve the students’ learning outcome on integrated science module
An Identification of The Understanding of Electrical Concept of Student Grade XII of Senior High School 2019/2020 in Central Aceh
Authors: Fristian Angga , Susanna Susanna , Farhan Ahmad
Published: January 2022

This study aims to identify and differentiate the level of understanding of the electrical concepts of students' Grade XII Senior High Schools in Central Aceh. The population of this study was all students of Science students Grade XII Senior High Schools in Central Aceh which consisted of 19 senior high schools. The sample in this study were 115 students from six senior high schools in Central Aceh. The determination of the sample is done by purposive sampling. The approach which used is a qualitative approach with the type of descriptive research. Data collection techniques in this study used the test method. The form of the test instrument used is in the form of a three-tier test with a total of 12 items. The technique of data analysis was used in this study is percentage analysis. The percentage of the results shows there were 7.72% of students understood the concept, 51.52% of students lacked understanding of the concept, and 40.72% of misconceptions students. Thus, it can be concluded that the level of understanding of the electrical concepts of students senior high school in Central Aceh is at level 5 means very poor. As further recommendation for similar research it is best to not only identify the understanding of concepts, but also to overcome the lack of understanding of concepts and misconceptions in students so that students' understanding of concepts increases, especially in electrical concepts.
The identification of Teachers’ Difficulties in Designing of Learning Materials Based on STEM at Central Aceh Senior High School
Authors: Indrawan Deni Fahlawi , Syukri M , Halim Abdul
Published: January 2022

The problem in this research is what components are the difficulties for high school physics teachers at Central Aceh in designing STEM-based learning tools? This study aims to determine the difficulties of high school physics teachers in Central Aceh in designing STEM-based learning tools. The approach used in this research is a quantitative approach and descriptive type. The subjects of this study were all high school physics teachers in Central Aceh. Data collection was carried out by means of a questionnaire. The questionnaire data was processed with a descriptive percentage. The conclusion in this study is that the difficulty level of teachers is the highest in designing STEM-based learning tools on the Pedagogical Content Knowledge (PCK) component as many as 18,20 % of teachers, on the Content Knowledge (CK) component as many as 15,15 % of teachers and on the Technological Content Knowledge (TCK) component as many as 14,05 % of teachers. It is recommended for teachers to master mathematics/science in order to equip teachers’ knowledge in designing classroom learning tools and mastering technology to determine student needs in learning such as Twitter, blog, Facebook to support the teaching and learning process.
Analysis of Item Difficulty Index for Midterm Examinations in Junior High Schools 5 Bengkulu City
Authors: Pratiwi Rapita , Reflianti Septia , Antini Sura , Walid Ahmad
Published: January 2022

This study aims to analyze the difficulty level of the IPA UTS items for Class VII and VIII at SMP Negeri 5 Bengkulu City. This study used a qualitative descriptive research design. The instrument used in this study was the text of the Middle Semester Test (UTS) for the Middle School Science Subject for the in Junior High School. The data collected were analyzed using the Difficulty Index formulation. The results showed that the analysis of the difficulty level of the IPA UTS items for Class VII and VII at SMP Negeri 5 Bengkulu City for the academic year 2018/2019 had a difficult question category in grade VII of only 10%, easy question category 15%, and question category which is being 75%. Likewise, Class VIII has only 5% difficult question categories, 10% easy question categories, and 85% medium question categories. This indicates that the quality of the UTS questions is very good.
Evaluation of the Science Learning Process at SMPN 5 Bengkulu Based Online During the Pandemic
Authors: Marlinsa Engga , Saputri Freti , Mardiyati Mardiyati , Walid Ahmad
Published: January 2022

The purpose of this study was to evaluate the student learning process in science subjects at SMPN 5 Bengkulu online based during the pandemic. The method used is a data analysis method with a descriptive qualitative approach to the sources obtained through interviews and filling in the Google Form wich is distributed to students of class VII and IX of SMPN 5 Bengkulu. The instrument used in this study was a questionnaire. The results showed that online learning was quite fun for students with a percentage of 67.6% and boring for other 32.4% students. And the Whatsapp application is more effectively used in online learning with a percentage of 91.2%, besides that handphone can also be useful for students in the learning process because they are easy to use.
Learning About Reflection of Light Based Ultraviolet Detection System Using Raspberry Pi
Authors: Pramono Nugroho Adi , Purwandani Bertha Anggita , Sofyan Fauzan Ibnu , Ghaisyani Octavia
Published: January 2022

Ultraviolet light is an electromagnetic radiation that has range of wavelengths between 100nm to 400nm. This wavelength can be identified by the ultraviolet index, where at this wavelenght ultraviolet light has an impact to human health. Ultraviolet light with ultraviolet index green to yellow is benefical for human health. Meanwhile, ultraviolet rays with red to purple ultraviolet index are harmful to human health. Ultraviolet rays that are harmful to humans can pass the surface of the earth caused by many factors, one of which is global warming. Therefore, this research was conducted to create an ultraviolet light detection system using Raspberry Pi as a sensor data reader and aims to learn about how much light reflected on the surface of the earth. The data obtained will be processed using the phyton programming language and presented using an LCD touchscreen. From this research, the values of the ultraviolet index from zero to six were obtained based on the ultraviolet index value from the BMKG indicate the categories of ultraviolet light associated with light reflection on the surface of the earth are known. So it can be concluded that the less ultraviolet light on the surface of the earth will be reflected easily by the earth, and the more ultraviolet light on the surface of the earth will be difficult to reflect.
Development of E-Learning Video Using a Contextual Approach to Distance Learning Static Fluid Discussion
Authors: Serevina Vina , Astra I Made , Danoza Feren Vini
Published: January 2022

This research is motivated by the state of distance learning due to the pandemic which has drastically changed teaching and learning activities, so learning media that is suitable for the existing situation is needed. This study aims to develop and produce an e-learning video using a contextual approach to distance learning static fluid discussion. This study uses the Research and Development (RD) method which refers to a 4D model. The instrument in this study was a questionnaire using the Likert scale. This e-learning video has passed the validation test with the proportion of material experts 93.8% and media experts 72%. Video trials were conducted on 35 students of class XI MIPA and 1 physics teacher at SMA Negeri 2 Tangerang with a proportion of 100% according to the teacher and 91% according to the student. This research has improved in terms of material but needs further development in terms of media and science process skills. Based on these results, obtained data that e-learning video that has been developed using a contextual approach to distance learning static fluid discussion is a suitable media for learning physics.
The Influence of Inquiry-based Learning Model on Self-Efficacy and Scientific literacy of High School Students
Authors: Hasanah Desmia Siti
Published: January 2022

This study aimed to determine the effect of the inquiry-based learning model on high school students’ self-efficacy and scientific literacy. This research employed the quasi-experimental research design with a non-equivalent control group design. The purposive sampling technique determined the samples. The research data analysis was carried out quantitatively using the four-tier test to measure scientific literacy. Also, a non-test instrument was used in the form of a questionnaire to measure the level of self-efficacy. The hypothesis testing was used to determine whether the model affected students' self-efficacy and scientific literacy.The analysis result of MANOVA obtained the significant value of self-efficacy was 0.001 0, 05 and the significant value of scientific literacy was 0.000 0.05. therefore, H0 was rejected, and H1 is was accepted. Based on these results, it can be concluded that the inquiry-based learning model affected students’ self-efficacy and scientific literacy.
ORTA GELİR TUZAĞIYLA MÜCADELEDE ÇIKIŞ STRATEJİLERİ VE BÜTÇE POLİTİKALARI: TÜRKİYE ÖRNEĞİ
Authors: USLU Hüseyin
Published: January 2022

Bu çalışmanın temel amacı; Türkiye’de 1996:Q1-2019:Q4 döneminde bütçe politikalarının Orta Gelir Tuzağı üzerindeki etkilerini teorik ve ampirik olarak incelemektir. Serilerin durağanlığı ADF ve PP birim kök testleriyle, seriler arasındaki eşbütünleşme ilişkileri Maki (2012) testiyle incelenmiştir. Regresyon analizleri; FMOLS, DOLS ve CCR yöntemleriyle yapılmıştır. Nedensellik ilişkileri VECM yöntemiyle incelenmiştir. Regresyon analizinde; kamu harcamalarındaki %1’lik artışın Türkiye’deki kişi başına düşen milli geliri %0.93-%1.04 aralığında artırdığı, insani gelişmişlik düzeyindeki %1’lik artışın Türkiye’deki kişi başına düşen milli geliri %0.49-%0.59 aralığında yükselttiği belirlenmiştir. Kısa dönem nedensellik testinde; kişi başına düşen milli gelir ile kamu harcamaları arasında, Ar&Ge harcamaları ile kamu harcamaları ve Ar&Ge harcamaları ile yüksek teknolojili ürün ihracatı arasında iki yönlü, kamu harcamalarından insani gelişmişlik düzeyi ve yüksek teknolojili ürün ihracatına, kişi başına düşen milli gelirden Ar&Ge harcamaları, yüksek teknolojili ürün ihracatı ve insani gelişmişlik düzeyine doğru tek yönlü nedensellik ilişkisi olduğu bulunmuştur. Uzun dönem nedensellik testindeyse; kişi başına düşen milli gelir ile kamu harcamaları ve insani gelişmişlik düzeyi arasında ve kamu harcamaları ile insani gelişmişlik düzeyi arasında karşılıklı, Ar&Ge harcamalarından kamu harcamaları, kişi başına düşen milli gelir ve insani gelişmişlik düzeyine ve yüksek teknolojili ürün ihracatından kişi başına düşen milli gelir ve insani gelişmişlik düzeyine doğru tek yönlü nedensellik ilişkilerinin olduğu bulunmuştur.
THE ROLE OF RELATIONSHIP AND FORMALIZATION IN DECIDING THE INTERNATIONAL FRANCHISING MODE
Authors: KÖKLÜ Yalçın , ÖZSEVEN Mustafa
Published: January 2022

This study aims to find out which international franchising mode has been selected depending on the different formalization levels of franchising contracts as well as the level of relationship between the main company and the dealer. The study has been conducted on the international franchising experiences of two Turkish fast fashion retail companies. The research question has been tried to be solved by focusing on the international franchising strategies of these two companies in the Iran, Russia, Saudi Arabia, Dubai and Qatar between 2005 and 2015. Document examinations and 7 interviews revealed differences and similarities between the international franchising strategies of two companies. Multiple case analysis has shown that level of formalization and relationship are effective in deciding the international frachising mode. The research findings have indicated that both relationship and formalization could be low in the single unit franchising mode, however the area development franchising mode has required higher relationship level. Besides that analyses found out that when master franchising mode has been chosen, the partners would have higher level formalization and relationship levels.
SAVUNMA PROJELERİNDE RİSK ODAKLI İÇ DENETİM; İHTİYAÇ ANALİZ SÜRECİNİN DEĞERLENDİRİLMESİ: TECRÜBESEL BİR YAKLAŞIM
Authors: GÖRMEN Murat , KORKMAZ Goksel
Published: January 2022

Savunma ihtiyaçlarının çok farklı olması, değişen konseptler muvacehesinde giderek karmaşıklaşması, tedarikçilerinin çeşitlenmesi ve tüm bu ve buna benzer faktörlerin maliyetlere yansıması, kaynakların etkili ekonomik ve verimli kullanılmasını zorunlu hale getirmektedir. Kaynakları etkili kullanabilmenin yolu ise ihtiyaçların doğru tanımlanmasından geçmektedir. Bir savunma projesi geliştirilirken; performans, süre ve maliyet hedeflerinin tamamı gerçekleştirilmiş olsa da ihtiyaç doğru belirlenmemişse ve tanımlanmamışsa kaynakların etkili kullanımından söz etmek mümkün değildir. İç denetim, kaynakların etkili ekonomik ve verimli kullanılması için süreçlerin risk, kontrol ve yönetişim üçlemesi perspektifinden değerlendirilmesi ve yöneticilere stratejik bakış açısı sunması ile örgüt için temel destek fonksiyonudur. Bu çalışmanın amacı; iç denetim fonksiyonunun savunma projelerinin ihtiyaç belirleme sürecini risk odaklı yaklaşım ile nasıl denetleyebileceğini ortaya koyabilmektir. Bu çalışmada öncelikle doküman analiz yöntemiyle uluslararası uygulamalardan da istifade etmek suretiyle savunma sistemleri ihtiyacının nasıl belirlendiği incelenmekte, risk odaklı iç denetim yaklaşımının özellikleri anlatılmakta müteakiben de ihtiyaç belirleme sürecinin riskleri, kontrolleri ve bu kontrollerin nasıl test edileceği sistem denetimi yaklaşımıyla analiz edilmekte, sonuç ve önerilerde bulunulmaktadır. Çalışmada ayrıca çeşitli savunma projelerinin yürütülmesi esnasında elde edilen kazanımlardan ve derslerden de istifade edilmektedir.
La digitalización del sector local: una partitura sin orquesta
Authors: Herrero Pombo César
Published: January 2022

El sector público local se enfrenta al reto de su transformación digital lastrado por una secular insuficiencia financiera y una estructura de personal decimonónica, con enormes carencias en competencias directivas y digitales.
Personal temporal en la Administración Pública: soluciones de presente y opciones de futuro
Authors: Boltaina Bosch Xavier
Published: January 2022

Este documento se ha concebido como una reflexión, forzosamente breve y en tiempo actual, de la situación del empleo público temporal, el itinerario histórico desde 1976 a 2020, la perspectiva a 2021-2022 y las opciones de futuro. En este sentido se analizan las razones por las cuáles se ha llegado a que el empleo temporal alcance tasas elevadísimas en la Administración española, el recorrido para intentar reducirlo a unos porcentajes admisibles durante 2021 y finalmente, las medidas que podrían plantearse a corto y medio plazo para evitar repetir los errores del pasado y del presente, para que en un periodo de cinco o diez años no vuelva a repetirse la situación actual.
Síntesis de la jurisprudencia casacional sobre empleo público más significativa del año 2021 (1-11-2020 a 30-11-2021)
Authors: Chaves García José Ramón , Rastrollo Suárez Juan José
Published: January 2022

A lo largo de la presente sección presentamos una síntesis de la jurisprudencia casacional sobre Empleo Público más significativa del año 2021.
Comparative studies on enantioseparation of New Psychoactive Substances using cyclodextrin-assisted capillary electrophoresis with UV detection
Authors:   Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Austria, Hubner Eva-Maria , Steinkellner Patrick ,   Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Austria, Schmid Martin G. ,   Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Austria
Published: January 2022

New psychoactive substances (NPS) count as psychoactive substances, which are slightly modified compared to illicit drugs regarding their chemical structure to circumvent law. Compared to classical drugs such as heroin, cocaine, or amphetamine, they show similar psychoactive effects, however, because of their novelty there is few knowledge about their side effects or toxicity. NPS are available as different chemical substance classes, among them chiral novel derivatives of amphetamine, cathinone, and ketamine. Since in most cases no clinical studies are available about the possibly different effects of the two enantiomers, there is a big demand for enantioseparation method development. Besides high-performance separation techniques such as gas chromatography or HPLC, capillary electrophoresis has turned out to be a powerful alternative for chiral separation development. The addition of chiral additives such as cyclodextrins to the background electrolyte often results in successful attempts. The present study compares the chiral separation power of different previously used non-charged ß-cyclodextrins, among them native ß-cyclodextrin as well as some of its derivatives such as acetyl-, and 2-hydroxypropyl-β-cyclodextrin, with the negatively charged derivatives carboxymethyl-, carboxyethyl- and succinyl-β-cyclodextrin by capillary zone electrophoresis. A total of 136 chiral NPS were investigated with these cyclodextrins, 122 of them were resolved in their enantiomers successfully by means of a simple electrolyte composition consisting of 10 mM aqueous sodium hydrogen phosphate buffer, pH 2.5 and 10 mM of the chiral selector. Furthermore, the presented method turned out to be useful to distinguish between positional isomers and examples for both enantiomer order and positional order for seized samples are given.
The peculiarities of international business communication on the Internet
Authors: Syun Tszyi
Published: January 2022

This article examines the problem of business communication on the Internet on the example of the Russian and Chinese languages. The relevance of this research is substantiated by the progressive international relations, and lies in studying the peculiarities of the culture of international business communication on the Internet, namely between China and Russia. Although the economic cooperation between the two countries are rapidly developing, the problem of mutual intelligibility remains acute. In the globalization era, the Internet is crucial factor that effects the specifics of the culture of business communication. The article aims to reveal the peculiarities of international business communication on the Internet, taking into account the specifics of the parties to communication on the example of China and Russia). The subject of this research is the specifics of international business communication on the Internet between China and Russia. The object is the China-Russia business communication via the Internet. The scientific novelty lies in comprehensive analysis of the forms and specifics of international business communication on the Internet between China and Russia. The main conclusions are as follows: business communication on the Internet is affected by such factors as mentality, national traditions, established etiquette norms and rules; the Russian and Chinese business communication on the Internet is characterized by standardization, use of speech patterns, cliché; Russian and Chinese business representatives must have command of both languages alongside broad knowledge on culture and traditions of the partner country, show flexibility manifested in the use of modern technologies of conducting business, namely the Internet and its capabilities.
A aplicabilidade da telemedicina e os seus reflexos na relação médico-paciente: uma revisão integrativa
Authors: Souza Rodrigo Queiroz de , Menezes Junior Antônio da Silva , Assis Cássio Filho Cysneiros de , Souza Daniele Queiroz de
Published: January 2022

Objetivo Identificar por meio de uma revisão da literatura científica sobre a forma de aplicabilidade da Telemedicina (TM) e suas consequências na Relação Médico-Paciente (RMP). Métodos: Pesquisa qualitativa, crítica e dialética com uma revisão integrativa e análise de conteúdo. Para seleção dos documentos serão realizadas: descritores Mesh: Poder; Internet; Relação Médico-Paciente; Desprofissionalização médica; sem limitação de idiomas. Bases de Dados: PubMed e Scientific Electronic Library Online (SCIELO). Período: 5 últimos anos. Estabelecer categorias de análise a partir do webQDA (Qualitative Data Analysis). Resultados: 12 artigos com aspectos tanto positivos quanto negativos da TM na rotina da RMP foram avaliados, em relação à discrepância de posicionamentos dos autores. Assim, é evidente a dualidade da TM na RMP. Estabeleceu-se a partir do WebQdA as seguintes categorias de análise: relação de confiança, benefícios para atenção à saúde, ferramentas para profissionais de saúde, e limites no estabelecimento da RMP. Considerações finais: A evolução tecnológica acompanha o pensamento na interação entre o médico e o seu paciente. Embora os atendimentos remotos sejam benéficos, podem levar o ser médico humano para dentro de um mundo virtual, o que comprova que a TM deve ser mais uma forma/meio para tornar a RMP cada vez mais sólida.
Can Elon Mask's Twitter Posts About Cryptocurrencies Influence Cryptocurrency Markets by Creating a Herding Behavior Bias?
Authors: HAMURCU Cagri
Published: January 2022

The main purpose of this study is to examine the effects of Elon Mask's Twitter posts about cryptocurrencies on cryptocurrency markets within the scope of herding behavior bias. For this purpose, the daily price values and transaction volumes of Bitcoin and Dogecoin are analyzed by applying the EGARCH models. The results show that Elon Musk's positive Twitter posts increase dogecoin's volatility more than bitcoin in terms of price and trading volume. In addition, the effect of positive tweets has been found to increase Bitcoin and Dogecoin prices and their market transactions. According to the results, while negative tweet sharing negatively affects bitcoin returns, it manifests itself with an increase in volatility after a certain period of time. Another result is that the Dogecoin return and negative tweet interaction vary according to time intervals, but the presence of the effect on volatility cannot be determined. It is also concluded that after the negative tweet, both bitcoin and dogecoin transaction volumes increased in the first days, but their volatility was not affected. The results are important in terms of showing the effects of an influential person's social media posts on the financial markets by creating a herd behavior effect. Revealing the "influential person effect" as a behavioral finance bias is seen as the originality of the study. It is thought that the findings can be evaluated in terms of pointing out a factor that may pose a potential risk to financial stability in the global sense.
Türkiye’de Finansal Serbestleşme Sonrası Rezerv Talebini Etkileyen Faktörlerin Araştırılması
Authors: KAYTANCI Uğur Bülent , KAYTANCI Bengül Gülümser
Published: January 2022

Bretton Woods sisteminin yıkılmasıyla çoğu ülkenin kur sistemi daha esnek hale gelmesine rağmen, merkez bankalarının döviz varlıklarının düşeceği yönündeki öngörü gerçekleşmemiş, aksine merkez bankalarının döviz varlıkları yakın geçmişte önemli ölçüde artmıştır. Dünya döviz rezervlerindeki bu çarpıcı artış; döviz rezervlerinin belirleyicilerini ve hangi ekonomik faktörlerin döviz rezervlerini artırmada etkili olduğunu incelemeyi anlamlı kılmıştır. Bu çalışmada finansal serbestleşme sonrası Türkiye Cumhuriyet Merkez Bankası’nın (TCMB) rezerv talebini etkileyen faktörler, 1990Q1-2018Q4 dönemi için, ARDL sınır testi yaklaşımı kullanılarak araştırılmıştır. Çalışma sonuçlarına göre, uzun ve kısa dönem ilişkiler bakımından, Türkiye’de, sermaye hareketleri, kısa vadeli borçlar, S&P’un Türkiye Notu ve kişi başına GSYH’nin rezervleri 1990Q1-2018Q4 döneminde etkilediğini, bu etkinin; sermaye hareketleri bakımından hem uzun hem de kısa dönem ilişkiler yönünden pozitif yönde ve diğer unsurlara nazaran en yüksek düzeyde olduğunu, kısa vadeli borçlar ve kişi başına GSYH için uzun dönemde pozitif, kısa dönemde negatif yönde olduğunu, S&P’un Türkiye Notu içinse uzun dönemde negatif, kısa dönemde ise pozitif yönde olduğunu ifade edebiliriz.
Amartya Sen: Kapasite Yaklaşımı ve Özgürlükle Kalkınma Sorunu
Authors: YAYLA Yavuz
Published: January 2022

Her kriz döneminde artan ekonomik eşitsizlikler ekonomide hakkaniyetli bir bölüşümün nasıl olması gerektiği üzerine yapılan tartışmaların artmasına da neden olmaktadır. Bu amaçla da bu konuda düşünsel çaba harcayan düşünürlerin görüşleri tekrar ele alınmaktadır. Bu düşünürlerden birisi de önemli bir iktisat felsefecisi ve/ya sosyoloğu olan Amartya Sen'dir. Biz bu çalışmada Amartya Sen'in geliştirdiği kapasite yaklaşımı ile özgürlükle kalkınma arasındaki ilişkiyi nasıl ele aldığını irdeleyeceğiz.
Fonctions continues mais dérivables nulle part : de l’effroi au printemps de l’analyse multifractale
Authors: Loosveldt Laurent
Published: January 2022

Après avoir introduit les « monstres » que sont les fonctions continues mais dérivables nulle part, nous présentons brièvement la théorie des espaces de Hölder ponctuels avant de généraliser cette dernière. Quelques résultats fondamentaux sont passés en revue ainsi que des applications de ceux-ci. Nous expliquons notamment comment la transformée en ondelettes amène à des résultats permettant d’estimer la régularité de fonctions. Nous concluons en remarquant que des méthodes numériques, associées aux espaces fonctionnels présentés dans ce papier, permettent de différencier un mouvement brownien d’autres processus.
Increasing the tolerance to copper of ornamental plants and lawn grasses in urban ecosystems
Authors: Gladkov Evgeny Aleksandrovich , Tashlieva Ilina Igorevna , Dolgikh Yuliya Ivanovna , Gladkova Olga Victorovna
Published: January 2022

The plants are an important part of the urban ecosystem. Plants help to reduce the level of pollution and the effect of adverse environmental factors on urban ecosystems. Among the most dangerous pollutants for plants are copper ions. Copper is one of the main pollutants of urban soil. Copper ions significantly reduce the quality of ornamental plants. One approach to solve this problem is to create plants resistant to adverse environmental factors using cell selection. This method is hardly ever used in urban greening. The aim of the work is to produce plants resistant to copper ions. It was developed technologies to obtain ornamental plants resistant to copper. These plants have substantially increased their resistance to copper. Plants Festuca rubra were resistant to high levels of copper contamination and can grow on the basis of the level of pollution along roads, in residential areas. Plants Brachycome iberidifolia proved to be resistant to the average level of pollution of copper and can grow in parks and squares.
Correlation analysis between biophysical indices and Land Surface Temperature using remote sensing and GIS in Guelma city (Algeria)
Authors: Guechi Imen , Gherraz Halima , Alkama Djamel
Published: January 2022

Urbanization is a phenomenon that is driven by humans. It has significantly influenced biodiversity, ecosystem processes and regional climate. This work explores the relationship between seven biophysical variables (NDVI, SAVI, Greenness, Albedo, DBI, NDBI, and NDBaI indices), and LST over a period of 30 years (1990–2020), based on remote sensing & GIS. A time-series of Landsat images TM, ETM+ and OLI/TIRS data as well as various geospatial approaches were used to facilitate the analysis. The findings have revealed that urban/built-up areas of Guelma city has increased by (20.76 km2), in contrast to the agricultural and forest areas, which have been reduced by (138.26 km2 and 2.7 km2). The average temperature of urban setting was (31,43 C°) in 1990, whereas, it reached (41,90 C°) in 2020. The lowest temperature values were observed in forest bodies with (26,55 C°) in 1990 and (37,78 C°) in 2020. There is a possible rise in LST over time scale owing to the substitution of green cover by urban soil areas. Generally, there was a noticeable increase in mean LST of 10,47 C° for urban areas. The coefficient of correlation between the biophysical indices and LST shows that a strong negative correlation exists between vegetation biophysical indices (NDVI, SAVI and Greenness) and LST. In addition to this, the urban biophysical indices (Albedo, DBI, NDBI, and NDBaI) can effectively retrieve the LST. They were positively correlated in all years. DBI and LST have the highest consistently rising positive relationship (R = 0,62).This investigation provides us with clear understanding of the impacts that the urbanization and biophysical indices have on LST.
Analysis of rare and endemic flora in northeastern Algeria: the case of the wilaya of Souk Ahras
Authors: Touati Leïla , Hamel Tarek , Meddad-Hamza Amel , Bélair Gérard de
Published: January 2022

Scarcity and endemism are considered the most important concepts of a region’s biodiversity and conservation. Nevertheless, our understanding of the models of scarcity and endemism is limited to high biodiversity regions as, for example, the wilaya of Souk Ahras, northeastern Algeria. In this study, we have compiled a list of all heritage species, their taxonomic composition, and geographic distribution. A total of 119 species was documented, and their distribution was as analyzed in the biological environments of two distinct phytogeographic sectors — C1 and H2. The rate of scarcity and endemism increased alongside the organic matter richness and, as a result, the forest and pre-forest area supported an over-representation of these species. The preservation of this biodiversity, exceptional and threatened, urgently requires appropriate scientific studies and environmental protection as short term measures.
A new breeding site of the Algerian Nuthatch Sitta ledanti discovered in Djebel Tababort (north-eastern Algeria)
Authors: Bougaham Abdelazize Franck , Zemouri Mourad , Hamitouche Souad , Bouchareb Abdelouhab
Published: January 2022

La Sittelle kabyle Sitta ledanti est une espèce d’oiseau endémique d’Algérie classée par l’IUCN comme espèce en danger. Ses populations ne cessent de décroître. Elle est connue de quelques forêts sempervirentes et caducifoliées de la Kabylie des Babors (nord-est de l’Algérie). Elle a été découverte le 13 avril 2020 au Djebel Tababort, dans une forêt mélangée de cèdres et de Chênes zéens. Ce site est à ce jour la seule signalisation connue dans la Wilaya de Bejaia. Cette découverte renforce l’intérêt biologique de la Kabylie des Babors en général et du tout nouveau Parc national de Babor-Tababort en particulier.
Approche modèle pour une prise en charge globale des risques hydrologiques dans le bassin méditerranéen
Authors: Menad Wahiba
Published: January 2022

Les risques d’ordre hydrométéorologiques sont les plus fréquents et les plus dévastateurs dans le monde. Le bassin méditerranéen n’échappe pas à cette règle, dont il abrite les formes les plus dangereuses. Néanmoins, une grande partie de son territoire, en particulier celui de la rive sud, n’a jamais été sujet d’une évaluation de risque hydrologique. Dans ce travail on a essayé de développer une méthode d’évaluation des risques hydrologiques notamment d’inondation, de crue et de ruissellement superficiel, causés par des événements météorologiques à caractère intense qui frappent le bassin méditerranéen. Il s’agit d’une méthode applicable sur l’ensemble du bassin, conçue sous forme d’une feuille de route dressant les principales étapes de celle-ci. Pour donner un certain aspect général à ce travail, il était nécessaire que les données utilisées dans les différentes étapes de l’étude soient disponibles et accessibles pour l’ensemble du bassin (gratuites ou à prix symbolique). Cette méthode est ainsi parfaitement transposable à d’autres territoires à leur image et encourant un même type de risque.
Solar system studies with the Indo-Belgian telescopes
Authors: Ganesh Shashikiran , Krishnakumar Aravind , Venkataramani Kumar , Rai Archita , Baliyan Kiran Singh , Joshi Umesh Chandra
Published: January 2022

Indian astronomers have been using their relatively modest instruments and telescopes to contribute greatly in understanding the minor bodies of the solar system. Here we discuss some of the results from observations using Indian facilities by researchers from India and abroad. Results are discussed in imaging/photometry, polarimetry and spectroscopy from the Indian telescopes up to 2 metres in aperture. It is hoped that access to the upcoming 2-m and 4-m class telescopes and sophisticated instrumentation would greatly improve our understanding with more exciting results coming up in future. Access to 2-m and 4-m class telescopes are one of the key points of the BINA collaboration. It is expected that our understanding of the solar system bodies, particularly the minor bodies and other small objects, would be greatly enhanced in terms of statistics as well as detailed characterization of individual ones.
Strong lensing studies with the 3.6-m Devasthal Optical Telescope: opportunities and challenges
Authors: Sluse Dominique
Published: January 2022

Strongly-lensed quasars and active galactic nuclei (AGN), namely active galaxies that appear multiply imaged due to a foreground lensing galaxy, are exceptional astrophysical tools that may be used to probe the expansion rate of the Universe, study the evolution of galaxies and of their dark matter content over cosmic time, and zoom in into the structure of AGNs. We are entering a new era in observational astrophysics, no longer limited by the number of accessible targets, but by our ability to carry out follow-up observations. We list several science cases where the DOT and other Belgo-Indian telescopes may provide crucial high-quality data: (1) Photometric monitoring of strong lenses for cosmography (2) Confirmation of new strongly-lensed candidates in the era of big surveys (3) Advanced study of the structure of AGN using the technique of gravitational microlensing. For each of these topics, we provide a brief scientific overview of the technique and scientific question, and quantify the observational requirements for successful programs.
Spectroscopic study of the Carbon-Enhanced Metal-Poor star: HE 0110-0406
Authors: Purandardas Meenakshi , Goswami Aruna , Doddamani V. H.
Published: January 2022

The halo system of the Milky way comprises the vast majority of the presently observed metal-poor ([Fe/H] <1.0) and very metal-poor ([Fe/H] <2.0) stars. A sizable fraction (~ 30%) of the metal-poor stars with carbon enhancement ([C/Fe] ≤0.7) are called the Carbon-Enhanced Metal-Poor (CEMP) stars. Studies on these objects are of special interest, as they bear the fossil records of nucleosynthesis of the earliest generation of stars. Thus they provide insight into the nucleosynthesis and chemical evolution of the early universe. In the recent past, although these stars have drawn considerable attention as far as their spectroscopic studies are concerned, several questions still remain poorly understood such as the origin, production mechanism(s) and distribution of carbon and neutron-capture elements abundances exhibited by these objects. A comprehensive study of the abundance patterns of various heavy elements in these objects can give important clues to these questions. We have undertaken to perform chemical composition studies of a selected sample of CEMP stars using Hanle Echelle Spectrograph on the 2-m Himalayan Chandra Telescope. In this work, we present abundance results for HE 01100406. Our analysis shows this object to exhibit characteristic properties of CH giants. The abundance distribution patterns and the elemental abundance ratios are critically examined based on existing theories to understand their origin and evolution.