bluuebunny/crossref_metadata_2025_split huggingface dataset:
EFEKTIVITAS PEMBELAJARAN DARING BERBASIS MASALAH BERBANTUAN GEOGEBRA TERHADAP KEMAMPUAN PENALARAN MATEMATIS DI ERA COVID-19
Authors: Sugandi Asep Ikin , Bernard Martin , Linda Linda 
Published: January 2021

Pada masa covid-19 pembelajaran dilaksanakan secara daring (online), sehingga dibutuhkan beberapa alat belajar berbantuan ICT yang mampu menunjang efektivitas pembelajaran dengan baik yaitu Geogebra. Penelitian ini bertujuan untuk menelaah efektivitas pembelajaran berbasis masalah berbantuan Geogebra terhadap kemampuan penalaran matematis. Metode yang digunakan dalam penelitian ini adalah metode kuasi eksperimen. Populasi penelitian ini adalah seluruh siswa SMK Swasta di kota cimahi, sedangkan sampelnya dipilih tiga kelas yang banyaknya 80 dari satu SMK swasta di kota Cimahi. Instrumen yang digunakan dalam penelitian ini adalah seperangkat tes kemampuan penalaran yang berbentuk soal uraian sebanyak 4 soal. Soal tersebut sudah memenuhi soal yang baik berdasarkan validitas, reliabilitas, daya pembeda dan indeks kesukaran. Berdasarkan hasil perhitungan menggunakan SPSS 18 diperoleh hasil bahwa model berbasis masalah dengan bantuan Geogebra dengan model berbasis masalah maupun biasa memiliki nilai sign. sebesar 0,000, karena nilai sign. < 0,05, maka dapat disimpulkan bahwa pembelajaran menggunakan model berbasis masalah berbantuan Geogebra lebih efektif dibandingkan model pembelajaran berbasis masalah maupun model biasa ditinjau dari kemampuan penalaran matematis siswa. Dengan demikian penerapan model berbasis masalah berbantuan Geogebra lebih efektif dibandingkan model berbasis masalah maupun konvensional terhadap kemampuan penalaran matematis. Abstract During the Covid-19 period, learning was carried out online, so it needed several ICT-assisted learning tools that were able to support the effectiveness of learning well, namely Geogebra. This study aims to examine the effectiveness of Geogebra-aided problem-based learning on abilities. The method used in this study is a quasi-experimental method. The population of this study was all private vocational students in the city of Cimahi, while the sample was selected in three classes with a total of 80 from one private vocational school in the city of Cimahi. The instrument used in this study was a set of reasoning ability tests in the form of 4-item description questions. These questions have fulfilled good questions based on validity, reliability, distinguishing features and difficulty index. Based on the results of calculations using SPSS 18 shows that the problem-based model base on Geogebra with problem-based and ordinary models has a sign value. of 0.000, because of the sign value. <0.05, it can be concluded that learning using a Geogebra-assisted problem-based model is more effective than problem-based learning models and ordinary models in terms of students' mathematical reasoning abilities. Therefore the results are obtained the application of a Geogebra-based problem-based model is more effective than a problem-based or conventional model in terms of mathematical reasoning abilities.
COMPUTATIONAL THINKING ABILITY STUDENTS BASED ON GENDER IN CALCULUS LEARNING
Authors: Harmini Triana , Annurwanda Pradipta , Suprihatiningsih Siti 
Published: January 2021

The purpose of this study was to determine differences in the computational thinking skills of first students of the Department of Informatics Engineering based on genders. This study uses quasi-experimental methods. The subjects in this study were semester two students of the Department of Informatics Engineering in 2019/2020. The research subjects were 34 male students and 23 female students. Methods of data collection using tests and observations. The research instrument used was a computational thinking ability test and an observation sheet. Data analysis using a t-test (independent sample) with analysis prerequisites in normality and homogeneity tests. Test analysis utilizing the help of IBM SPSS Statistics 20. The study of research data shows that there are significant differences between the computational thinking ability of male and female students. The average results of the computational thinking ability test showed that male students' computational thinking ability is better than the female students' computational thinking ability. The male and female students' computational thinking skills reach the generalization stage, where male students can find solutions directly through easy-to-understand and straightforward ideas. Meanwhile, female students can explain the flow and concepts used to solve problems. AbstrakTujuan penelitian ini adalah untuk mengetahui perbedaan kemampuan berpikir komputasi mahasiswa semester awal jurusan Teknik Informatika berdasarkan jenis kelamin. Penelitian ini menggunakan metode eksperimen semu. Subjek dalam penelitian ini adalah mahasiswa semester 2 jurusan Teknik Informatika tahun ajaran 2019/2020. Subjek penelitian adalah 34 siswa laki-laki dan 23 siswa perempuan. Metode pengumpulan data menggunakan tes dan observasi. Instrumen penelitian yang digunakan adalah tes kemampuan berpikir komputasi dan lembar observasi. Analisis data menggunakan uji-t dengan prasyarat analisis berupa uji normalitas dan homogenitas. Uji analisis menggunakan bantuan IBM SPSS Statistics 20. Hasil penelitian dapat disimpulkan bahwa terdapat perbedaan yang signifikan antara kemampuan berpikir komputasi siswa laki-laki dan perempuan. Hasil rata-rata tes kemampuan berpikir komputasi diperoleh bahwa kemampuan berpikir komputasi siswa laki-laki lebih baik daripada kemampuan berpikir komputasi siswa perempuan. Kemampuan berpikir komputasi mahasiswa putra dan putri mencapai tahap generalisasi, dimana mahasiswa putra mampu mencari penyelesaian secara langsung melalui ide sederhana dan mudah dipahami. Sedangkan mahasiswa putri mampu menjelaskan alur dan konsep yang digunakan untuk menyelesaikan masalah.
Pengaruh Bahan Pakan terhadap Jumlah Tribolium Castaneum dan Susut Bobot Pakan dalam Penyimpanan
Authors: Pratama Ardana Reswari , Wiradimadja Rachmat , Hernaman Iman 
Published: January 2021

Penelitian bertujuan untuk mengetahui jumlah Tribolium castaneum dan susut bobot bahan pakan (jagung, dedak padi, pollard, kulit biji coklat, dan kulit kopi). Penelitian dilakukan dengan metode eksperimental. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan lima perlakuan yang masing-masing diulang sebanyak empat kali. Berdasarkan analisis statistik, hasil penelitian menunjukkan bahwa pengaruh jagung, dedak padi, pollard, kulit biji coklat, dan kulit kopi tidak berbeda nyata (P>0,05) terhadap tingkat serangan Tribolium castaneum. Namun, pengaruh perlakuan bahan pakan nyata berpengaruh (P<0,05) terhadap penyusutan bobot bahan kering. Jagung menghasilkan susut bobot paling tinggi, diikuti kulit kopi dan kulit biji coklat, dan terendah dedak padi dan pollard. Kesimpulan dari penelitian menunjukkan bahwa Tribolium castaneum menyerang kelima bahan pakan, dengan jumlah penyusutan yang paling sedikit adalah dedak padi dan pollard.
Analysis on Homoeopathic Preparation of Asterias Rubens for Evaluating Anti Breast Cancer Cell Line using Similia Principle
Authors: Ravikumar Raju  , Teja  , Sravanathi P  , Muthu Babu K  
Published: January 2021

Breast cancer is the subsequent foremost reason of cancer death in a woman and ranks as the primary foremost reason of death in India. In its conduct, several measures and recommendation are considered. Homoeopathic medicines are one of the part of a corresponding, and another medicine is utilized for the treatment of cancer. The main purpose of the investigation is to evaluate the anticancer action of homoeopathic arrangements of Asterias rubens on the basis of the similia principle. We directed an in vitro study using MTT assay to control the result of ultra diluted homoeopathic preparation in contradiction of two human breast glandular cancer cell lines(MCF-7 and MDA-MD- 231), frequently used for the breast cancer treatment, by testing the feasibility of breast cancer (MCF-7 and MDA-MD-231) cell line, with various attenuations of Asterias rubens at 24 hrs. Multiple comparisons between tested reagents at different concentrations confirmed the significance of the said results. At a dilution of 1:25 6CH and 30CH potency shown superior activity on MCF-7 and no such significant changes on MDA-MD-231 at any dilutions As it fails to offer estrogen receptor(ER) Also progesterone receptor (PR) expression, and also HER2 (human epidermal development variable receptor2) so continuously a triple-negative breast cancer it will be a hostility manifestation for breast cancer with restricted medicine choices. However, further potency needs to be tested. These preliminary significant results warrant further in vitro and in vivo studies to estimate the possible of Asterias rubens a medicine to treat breast cancer.
European river lamprey Lampetra fluviatilis L. in the Baltic and Caspian seas basins of Tver region
Authors: Колотей Анжелика Вячеславовна , Звездин Александр Олегович , Кучерявый Александр Васильевич , Павлов Дмитрий Сергеевич 
Published: January 2021

Представлена дополненная информация о распространении и условиях обитания речной миноги (Lampetra fluviatilis L.) на территории Тверской области. Ареал на территории области представляет собой сочетание исторического (водотоки бассейна Балтийского моря) и инвазионного (водотоки бассейна Каспийского моря) компонентов. Обоснована идея вселения миноги в систему р. Волга по системам искусственных судоходных каналов. Состояние популяций в Каспийском бассейне указывает на продолжающийся процесс освоения новых местообитаний.
Additional information on the distribution and habitat of the European river lamprey (Lampetra fluviatilis L.) in the Tver Region is presented. The areal of the European river lamprey in the Region consists of the historical (watercourses of the Baltic Sea Basin) and invasive (watercourses of the Caspian Sea Basin) components. The idea of the lamprey invasion in the Volga River through the system of manmade shipping canals is substantiated. The condition of the lamprey’s populations in the Caspian Sea Basin indicates the ongoing process of the species expansion.
Perspectives of growing decorative perennials of the genus Iris L. for introduction in the Kuzbass botanical garden
Authors: Цандекова Оксана Леонидовна , Вронская Оксана Олеговна 
Published: January 2021

В статье представлены результаты морфо-биологических наблюдений и биохимических показателей декоративных корневищных многолетников рода Iris L. семейства Iridaceae, произрастающих в условиях Кузбасского ботанического сада. Установлена видоспецифичность по продолжительности вегетации и уровню накопления антиоксидантов в листьях декоративных травянистых многолетников: I. aphylla>I. halophila>I. chrysographes>I. ruthenica>I. pseudacorus. Выявленные перестройки в функционировании антиоксидантной системы ирисов позволяют рассматривать их, как приспособительные и защитные реакции, направленные на их выживание и декоративные качества в окружающей среде. Исследуемые показатели можно использовать в качестве информативного параметра для оценки состояния растений в интродукции.
Here we present the results of morphological and biological observations and biochemical parameters of decorative rhizome perennials of the genus Iris L. of the Iridaceae family, growing in the Kuzbass Botanical Garden. We assess the duration of the growing season in relation to particular species. We also estimate the level of antioxidants in the leaves of decorative herbaceous perennials: I. aphylla> I. halophila> I. chrysographis> I. ruthenica> I. pseudacorus. The revealed rearrangements in the functioning of the antioxidant system of irises make it possible to consider them as adaptive and protective reactions aimed at their survival and preservation of decorative qualities. The studied indicators can be used as an informative parameter for assessing plants' state in the introduction.
Assessment of contamination of water samples from the lake Peno and lake Soblago of the Penovsky district of the Tver region on physical, chemical and microbiological indicators
Authors: Панкрушина Алла Николаевна , Чикурова Кристина Михайловна , Игнатьев Данила Игоревич 
Published: January 2021

Проведено комплексное исследование образцов проб воды, взятых из оз. Пено и оз. Соблаго Пеновского района Тверской области: определены значения ХПК, БПК, эпидемиологические показатели, изучено содержание ряда химических элементов - загрязнителей водных экосистем. По результатам проведённого исследования сделан вывод об удовлетворительном состоянии изученных озерных экосистем Тверской области, что свидетельствует об их определённой адаптации к оказываемым антропогенным нагрузкам
We studied the water samples taken from two lakes of Penovsky District in Tver Region. We assessed the values of COD and BOD, epidemiological indicators, the content of pollutants in aquatic ecosystems. Lakes Peno and Soblago are in a relatively good condition. This is partially due to the lakes’ ability to withstand the anthropogenic loads.
The Language Learning Strategies Used by Students of Merchant Marine Studies Polytechnics Makassar
Authors: Rustam Nilam Sari , Hamra Arifuddin , Weda Sukardi 
Published: January 2021

This thesis aims to (1) to investigate the kinds of language learning strategies the merchant marine polytechnics students use in learning English, (2) to investigate the most dominant language learning strategies used by successful and unsuccessful students, and (3) to find out whether or not the successful students employ different language learning strategies from the unsuccessful students. The researcher applied descriptive quantitative method. The population of this research was the students of merchant marine polytechnics of Makassar in academic year 2014/2015. The sample was the fourth semester students of nautical study program, class C which consisted of 30 students. This research used cluster random sampling technique. This research used 2 kinds of instruments; they were English skill tests and questionnaire. The research data was collected by using English skill tests and SILL questionnaire which were analyzed by descriptive and inferential statistic through SPSS 20.0 for windows program.The result of the descriptive quantitative data showed that (1) the nautical students of merchant marine polytechnics used six kinds of language learning strategies namely metacognitive, compensation, social, memory, cognitive, and affective strategy (2) the most dominantly used language learning strategies among the successful students is metacognitive strategy and the most frequently used language learning strategies among unsuccessful students is social strategy (3) there is a difference in using language learning strategies between successful students and unsuccessful students. The six language learning strategies were employed by the students in learning English. The successful students employed two kinds of language learning strategies; metacognitive and compensation strategy while the unsuccessful students employed four kinds of language learning strategies namely social, memory, cognitive, and affective strategy. Keywords: Language Learning Strategies, Successsful/Unsuccessful Students, Metacognitive, Compensation, Social, Memory, Cognitive, And Affective Strategy
The Effects of Lecturers’ Personality on Students’ Learning Motivation
Authors: Sudarsi Elim Trika , Hamra Arifuddin , Mahmud Murni 
Published: January 2021

The objectives of the research are; (i) to find out the kinds of lecturers’ personalities they have at English Education Study Program of FKIP UKI Toraja, (ii) to describe whether the lecturers’ personalities affect students’ learning motivation at English Education Study Program of FKIP UKI Toraja, (iii) to describe the personalities which give positive and negative effect to students’ learning motivation.The researcher employed qualitative method. The subjects of this research were the lecturers and students at English Education Study Program of FKIP UKI Toraja. The data of this research was collected by employing recording, observation and interview. The obtained data was analyzed in three major phases are; reduction, displaying, conclusion/ drawing verification.The result of the research revealed that (1) The lecturers’ personalities of the lecturers in teaching English at English Education Study Program of FKIP UKI Toraja are; extrovert, sensing, thinking, feeling and judging. (2) The lecturers’ personalities affect students’ learning motivation in studying English at English Education Study Program of FKIP UKI are extrovert, sensing, thinking, feeling and judging that gave positive and negative effect on students’ learning motivation. (3) The lecturers’ personalities have the positive and negative effect on students’ learning motivation. Keywords: Personality, Learning motivation.
The Students’ Perception on the Characteristics of Effective and Ineffective English Language Teachers
Authors: Khaerati Khaerati 
Published: January 2021

Effective and ineffective English teacher will determine the success of teaching and learning process. This research was conducted to find out the students’ perception on the characteristics of effective and ineffective English language teachers. The methodology employed in this research was qualitative method by applying coding of qualitative data. The main instrument of this research was data in the form of essay. The essays were collected from the students. The data analysis was carried out by following the grounded theory procedure and technique comprised three steps: open coding (inductive), axial coding and selective coding. This research found out that there are several characteristics of effective and ineffective English teacher. They are teacher’s personality, teacher’s appearance, teacher’s classroom performance, material mastery and classroom management. Keywords: effective, ieneffective, perception
The Integration of Social Skills in Teaching Speaking to Undergraduate English Language Teaching Students
Authors: Rusdiah Rusdiah 
Published: January 2021

This study aimed at identifying (1) The social skills. (2) The ways of the lecturer’s social skills in teaching speaking. This research employed a descriptive qualitative research design. The instrument of this study involved interview, passive participant observation, and documentation. The subject of this research is the lecturer who teaches speaking and the fourth year students at undergraduate English language teaching students in Universitas Sulawesi Barat. The result of this study showed that there were eighteen social skills that lecturer integrated in teaching speaking both in verbal and nonverbal communication, namely; integrity, diligence, courage, responsibility, religiosity, discipline, creative thinking, curiosity, hard working, self-reliance, problem solving, critical thinking, communication skills, self confidence, decision making, collaborative working/cooperative, respect, and, caring. The ways of lecturer social skills integration in teaching speaking is by verbal and nonverbal communication. In verbal communication are by saying greeting when entering the class, praying before starting and ending the class, taking the register, giving advice to motivate students to study, calling on students by name when talking to them, responding to students reasons for being late, giving feedback to students, asking students to tell their most impressive learning English experience, inserting humor in teaching, telling students his personal experience, allowing students to have individual group consultation, allowing students to call him by his first name, asking students how they feel about their lesson and assignment given, and, using terms like “we” and “us” to refer to the class. Meanwhile, in nonverbal communication are by starting and ending the lesson on time, being enthusiastic in teaching, looking at the class while teaching, looking at the class while teaching, using gesture while talking to the class, using vocal variety, smiling at class while talking, dressing neatly, having a relaxed body posture while talking to the class, having eye contact when calling on a students’ name, nodding along students’ responses, coming closer to the students when lecturing, walking from back to the front and side-to-side between rows when teaching (moving around the class when teaching), looking very little at board or notes while talking to the class, and shaking hands with students. Key words: social skills, speaking, undergraduate English language teaching students
The Challenges in Undertaking English Speech Training Program at an Islamic Boarding School : A Study of Students’ Perspectives
Authors: Abubakar Bahrun , Atmowardoyo Haryanto , Korompot Chairil Anwar 
Published: January 2021

The objectives of this research were to find out (1)the students’ perspective about the English Speech Training through the Muhadharah Program at IMMIM Putera Islamic Boarding School; (2) the most significant problems that challenge the students in undertaking English Speech Training through the Muhadharah Program; (3) the actions that the students already took in attempt to deal with the problems they had in undertaking the English Speech Training through the Muhadharah Program.This research employed descriptive qualitative research design. It applied purposive sampling technique. The participants of this research were two students, they are grade 2: 1 student and grade 6: 1 student. The data were collected by using interview and observation. The interview was used to gather the data about the students’ perspectives on the English Speech Training through the Muhadharah Program at IMMIM Putera Islamic Boarding School, the challenges they faced and the solutions they took dealing with the English Speech Training through the Muhadharah Program. The result of research showed that (1) the perspectives of the students on the Muhadharah program in IMMIM Putera Islamic Boarding School are quite positive; (2) the most significant problems that challenge the students in undertaking the program are mostly related to the linguistic factors; peers’ generated anxiety; monotonous design of the program; and speech by rote; (3) the solutive action taken by the students to tackle the problems in undertaking the Muhadharah program; preparing the speech materials and speech techniques. This is done in two ways: consulting to supervising teachers (done by junior students); preparing everything independently (done by senior students). The implications of this research are; (1) promoting a term to address a new speaking feature called “Speech by Rote”; (2) pesantren should recruit supervising teachers with good English command; (3) pesantren should vary the design of the program.