bluuebunny/crossref_metadata_2025 huggingface dataset:
EXPLORING PRE-SERVICE CHEMISTRY TEACHERS’ PROBLEM SOLVING SKILLS ON VOCATIONAL CONTEXT-BASED LEARNING
Authors: Wiyarsi Antuni , Damanhuri Muhd Ibrahim , Fitriyana Nur
Published: November 2021

Problem-solving skill is an important component in achieving a successful 21st-century learning system. This research aimed to explore Pre-service Chemistry Teacher’ (PsCT’) problem-solving skill after CBL (Context-based learning) implementation with vocational case on petroleum and polymer topic of chemistry. A descriptive study on the CBL implementation was adopted in this research. The study focused on the exploration of PsCT’ problem-solving skill. Through convenient sampling technique, the sample covered a total of 34 PsCT (10 males and 24 females) who enrolled in vocational chemistry course were selected in this study. The data of PsCT’ problem-solving skill were collected through Rubric for Problem-solving skill (RPSS). There were four aspects of problem-solving skill used in this research, namely problems identification skills, information collection skills, skills to provide possible solution, and skills of communicating the possible solution. These data were analysed according to descriptive quantity and one-way ANOVA technique. Three open-ended questions were used to explore PsCT’s view about the relevance, usefulness, and effectiveness of the CBL implementation. There was a significant difference on PsCT’ problems solving skills among petroleum and polymer topic.  The result of this study indicated that PsCT’ problem-solving skill still in sufficient category. Hence, these skills should be improved especially on the skills to analyse the problem comprehensively and make an appropriate conclusion. The PsCT have positive view toward CBL implementation about the relevance, usefulness, and effectiveness. The implementation of CBL with vocational case is promising since it could improve PsCT’ problem-solving skills.
REMOTE LEARNING IMPLEMENTED BY BIPA TEACHERS DURING COVID-19 PANDEMIC
Authors: Hardini Tri Indri , Setyarini Sri , Harto Sri
Published: November 2021

This research aimed to describe how BIPA teachers implemented remote learning process, identify the problems encountered during COVID-19 pandemic, and explore how Indonesian cultural elements were introduced to students of primary and secondary schools. This research applied a case study design involving eight BIPA teachers in Victoria, Australia as participants. The data were collected through survey questionnaire, virtual interviews, and document analysis. The research data were analysed by making data categories regarding the implementation of remote learning, identification of its problems, and the introduction of Indonesian cultures to students. Interpretation of research findings was done by using relevant theoretical framework. The research findings indicated that the BIPA teachers implemented the remote learning through providing a learning model, listening to students’ individual reading practices, doing a discussion with the students, and implementing simple practices on the selected materials. One of the problems encountered was about students’ motivation. The elements of Indonesian cultures were introduced through identifying its types, describing the identified types of cultures, and writing short essays on the selected cultural topics.
KETERAMPILAN BERPIKIR TINGKAT TINGGI DALAM SOAL UJIAN NASIONAL BAHASA INDONESIA
Authors: Suwandi Sarwiji , Sudaryanto Memet , Wardani Nugraheni Eko , Zulianto Sugit , Ulya Chafit , Setiyoningsih Titi
Published: November 2021

Penelitian ini bertujuan untuk menganalisis konstruksi higher order thinking skills pada soal ujian nasional Bahasa Indonesia di jenjang SMP. Penelitian ini menggunakan pendekatan kualitatif dengan content analysis soal ujian nasional SMP. Keabsahan data diuji dengan trianggulasi teori. Teknik analisis data menggunakan model analisis interaktif. Penelitian dilakukan dengan mengonstruksi teori mengenai higher order thinking skills dari beberapa buku, jurnal, dan kajian riset lainnya. Pedoman analisis data dikaji expert melalui content validity oleh Aiken. Hasil penelitian menunjukkan bahwa data teks pada soal ujian nasional yang diteskan pada peserta didik mengandung dimensi berpikir kritis dan berpikir kreatif. Peserta tes dituntut untuk mampu menelaah secara kritis dalam kasus-kasus yang disajikan melalui wacana teks soal. Selain itu, peserta tes juga diharapkan mampu menemukan lebih dari satu perspektif untuk mengkaji wacana tersebut. Berdasarkan taksomi Blooms dimensi yang dikonstruk pada soal ujian nasional pada ranah analisis dan evaluasi kebahasaan. Dimensi yang diukur dalam soal ujian nasional belum bisa memproyeksikan kemampuan yang dibutuhkan oleh peserta didik untuk jenjang pendidikan yang lebih tinggi.HIGHER ORDER THINKING SKILLS IN INDONESIAN LANGUAGE NATIONAL EXAM This study aimed to analyze the construction of higher order thinking skills in Indonesian national exam questions at the Junior High School level. This study used a qualitative approach with content analysis for Junior High School national exam questions. The validity of the data was tested by theoretical triangulation. The data analysis technique used interactive analysis methods. The research was conducted by constructing a theory about higher order thinking skills from related books, journals, and other research studies. The data analysis guidelines were reviewed by experts through content validity proposed by Aiken. The results showed that the text data on the national exam questions tested on students contained dimensions of critical thinking and creative thinking. Test participants were required to be able to critically analyze the cases presented through the question text discourse. In addition, test participants were also expected to be able to find more than one perspective to study the discourse. Based on Blooms' taxonomy the dimensions constructed in the national exam questions in the realm of language analysis and evaluation. The dimensions measured in the national exam questions have not been able to project the abilities needed by students for higher education levels.
PENGARUH PENERAPAN ASYNCHRONOUS LEARNING DAN MOTIVASI BELAJAR TERHADAP HASIL BELAJAR
Authors: Siswanto Siswanto , Kartanagara M. Abdul Rohman , Liu Su-Chuan
Published: November 2021

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan Asynchronous Learning dan Motivasi Belajar terhadap Hasil Belajar Administrasi Pajak peserta didik kelas XII Akuntansi Sekolah Menengan Kejuruan. Penelitian ini merupakan penelitian ex-post-facto dengan pendekatan kuatitatif. Populasi dalam penelitian ini adalah seluruh siswa kelas XII Jurusan Akuntansi Keuangan dan Lembaga sejumlah 162 peserta didik dan jumlah sampel yang diambil sebanyak 64 siswa.  Metode pengumpulan data menggunakan angket/kuesioner. Uji prasyarat analisis data meliputi uji Normalitas, linearitas, uji multikolinearitas, dan uji heteroskedastisitas. Teknik analisis data yang digunakan dalam penelitian ini adalah analisis regresi sederhana dan analisis regresi ganda. Hasil penelitian menunjukkan terdapat pengaruh positif dan signifikan antara penerapan Asynchronous learning terhadap hasil belajar administrasi pajak. Adanya pengaruh positif dan signifikan antara motivasi belajar terhadap hasil belajar administrasi pajak. Hasil penelitian juga menunjukkan pengaruh positif dan signifikan secara bersama-sama antara penerapan Asynchronous learning dan motivasi belajar terhadap terhadap hasil belajar administrasi pajak. THE EFFECT OF ASYNCHRONOUS LEARNING IMPLEMENTATION AND LEARNING MOTIVATION TOWARD LEARNING OUTCOMES  AbstractThis study aimed to determine the effect of the application of Asynchronous Learning and Learning Motivation on Tax Administration Learning Outcomes for Class XII Accounting Vocational High School students. This research was an ex-post-facto research with a quantitative approach. The population in this study were all students of class XII of the Department of Financial Accounting and Institutions with a total of 162 students and the number of samples taken as many as 64 students. The data collection method used a questionnaire/questionnaire. Prerequisite tests of data analysis included normality, linearity, multicollinearity, and heteroscedasticity tests. The data analysis techniques used in this research were simple regression analysis and multiple regression analysis. The results showed that there was a positive and significant effect between the application of Asynchronous Learning on the learning outcomes of tax administration. There is a positive and significant influence between learning motivation on tax administration learning outcomes. The results also show a positive and significant effect jointly between the application of Asynchronous learning and learning motivation on the learning outcomes of tax administration
ANALYSIS DIMENSIONS OF CREATIVITY IN STEM INTEGRATED PROJECT-BASED LEARNING
Authors: Thongsri Prapawan , Susilowati Eko
Published: November 2021

This study aims to analyze the dimensions of creativity in integrated project-based learning in Science, Technology, Engineering, and Mathematics (STEM). The research method uses descriptive statistical analysis. This research was conducted on students of the Physics Education Study Program in Banjarmasin. The research subjects consisted of 24 physics teacher prospective students programming Applied Physics courses. Data obtained through tests, questionnaires and interviews. Data were analyzed by calculating the normality test, difference test, and N Gain. The results showed the order of increasing the percentage of N Gain in the creativity dimension from the lowest to the highest, namely the person dimension, the press dimension, the product dimension, and the process dimension. The strength of this research is to train the creativity of prospective teacher students through project creation by integrating STEM fields that combine cognitive, affective, and psychomotor abilities by exploring the problems that exist in their neighborhood. Further research on the dimensions of creativity in other learning models is needed to explore student creativity continuously and sustainably in order to produce quality resources.
DEVELOPMENT OF MEDIA LEARNING STAND STATER SYSTEM ON MOTORCYCLES TO IMPROVE VOCATIONAL STUDENTS' LEARNING OUTCOMES
Authors: Suyitno Suyitno , Kamin Yusri Bin , Lukman Nurma Amri , Widiyatmoko Widiyatmoko , Jatmoko Dwi , Primartadi Aci
Published: November 2021

This study aims to reveal: 1) To develop the Learning Media of the Starter System on a motorcycle, at SMK Institut Indonesia Kutoarjo, 2) To find out the Learning Media of the Starter System on a Motorcycle, 3) To find out the improvement of Student Learning Outcomes of XI TBSM after using the Learning Media. The starter system on a motorcycle at the Indonesian Institute of Kutoarjo SMK. This type of research uses the Four - D method with research subjects, namely class XI TBSM A as an experimental class with a total of 14 students and class XI TBSM B as a control class with a total of 14 students. Collecting data using a questionnaire (questionnaire) to determine the media used for research and a written test in the form of multiple choice with a total of 25 questions. The data analysis test used normality test, homogeneity test, and t-test. From the results of the research, it shows that: 1) the procedure for developing learning media for the starter system stand on a motorcycle includes the search for the definition stage, the planning stage, the development stage, and the deployment stage. 2) the learning media of the starter system stand on the motorcycle that was developed is suitable to be used as a learning medium for the subject of Motorcycle Maintenance, at SMK Institut Indonesia Kutoarjo. This can be proven from the results of the validation carried out by media expert lecturers who showed results of 80.00% of the scores obtained indicating good criteria, validation by material expert lecturers who showed results of 70.00% of the scores obtained showed quite good criteria. 3) the results of the t-test effectively prove that the learning media is made to improve learning outcomes (tcount = 21.304 and p = 0.000) for class XI TBSM students at the State Vocational School of the Indonesian Institute of Kutuarjo. This is shown through student responses, which include small group trials, which include 89.5%, which includes 5 students, and large group trials, obtaining a score of 90.89%, which includes 14 students. Students' interest in learning shows the learning outcomes of students who do not use the starter system media stand on a motorcycle and those who use the starter system media stand on a motorcycle. Through the normality test, it was obtained that p = 0.144, because p > 0.05, it indicated that the two groups were normally distributed. Through the homogeneity test, it was obtained that F count = 3.081 with p = 0.091, because p > 0.05, the second group had a homogeneous variant. Thus the learning media stand starter system has succeeded in improving student learning outcomes at SMK Institu Indonesia Kutoarjo.
IMPROVING ENVIRONMENTAL AWARENESS THROUGH A PARTICIPATORY FIELDWORK
Authors: Permata Alviani -
Published: November 2021

This study aims to analyze the provision of field assignments for students to increase their awareness of the environment. This research is an analysis of students' assignments on fieldwork. This fieldwork was an assignment of a course called Ilmu Kealaman Dasar (Basic Natural Science), Faculty of Bussiness, Chirstian Duta Wacana University. This course aimed to enable students to increase their understanding and concern for the natural environment. Lecturing with a teachercentered approach is believed to be unable to achieve the expected lecture goals. Therefore, this approach needs to change by implementing a participative learning strategy. The implementation of this strategy involves students' participation in some activities. Thus, students can comprehend more of the course materials and enthusiastic in their learning process. This work used a text analysis approach by examining the results of student reflections on the vegetable planting process in an organic farm. From the data analysis, it can be seen that there is an increase in students' awareness and concern for the natural environment after they do fieldwork and there are hopes to participate in its maintenance.MENINGKATKAN KESADARAN TERHADAP LINGKUNGAN MELALUI TUGAS LAPANGAN YANG PARTISIPATORIS Penelitian ini bertujuan untuk menganalisis pemberian tugas lapangan bagi mahasiswa untuk peningkatan kesadarannya terhadap lingkungan. Penelitian ini merupakan analisis tugas lapangan mahasiswa. Kerja lapangan ini merupakaan tugas mata kuliah Ilmu Kealaman Dasar mahasiswa Fakultas Bisnis di Universitas Kristen Duta Wacana. Mata kuliah ini bertujuan agar mahasiswa dapat meningkatkan pemahaman dan kepeduliannya terhadap lingkungan alam. Perkuliahan dengan pendekatan berpusat pada guru diyakini tidak dapat mencapai tujuan perkuliahan yang diharapkan. Oleh karena itu, pendekatan ini perlu diubah dengan menerapkan strategi pembelajaran yang partisipatif. Penerapan strategi ini melibatkan partisipasi mahasiswa dalam beberapa kegiatan. Dengan demikian mahasiswa dapat lebih memahami materi perkuliahan dan lebih antusias dalam proses pembelajaran. Penelitian ini menggunakan analisis teks berupa analisis Sarana Tanda dengan menelaah hasil refleksi mahasiswa tentang proses penanaman sayur di pertanian organik. Dari analisis data dapat diketahui adanya peningkatan kesadaran dan kepedulian para mahasiswa terhadap lingkungan alam setelah mereka melakukan tugas lapangan dan timbul harapan untuk berpartisipasi dalam pemeliharaannya.
PENDIDIKAN HOLISTIK BERBASIS KARAKTER DALAM TASYRIH WASIAT RENUNGAN MASA KARYA TGKH. MUHAMMAD ZAINUDDIN ABDUL MAJID
Authors: Muliadi Agus , Pahmi Muhammad Zainul
Published: November 2021

Studi ini bertujuan untuk mengeksplorasi relevansi nilai-nilai Pendidikan Holistik Berbasis  Karakter melalui sembilan pilar karakter dengan tasyrih kaidah-kaidah Wasiat Renungan Masa. Studi ini  merupakan penelitian deskriptif kualitatif melalui kajian pustaka (liberary research) dengan sumber  utama yaitu buku Wasiat Renungan Masa karya Maulana Syaikh TGKH. Muhammad Zainuddin Abdul  Majid  dan  buku  Pendidikan  Karakter:  Solusi  Yang  Tepat  Untuk  Membangun  Bangsa  karya  Ratna  Megawangi.  Teknik  analisis  data  dilakukan  dengan  tahapan  yaitu  membaca,  mencatat,  menelaah,  mengumpulkan konsep, kemudian dilakukan elaborasi. Hasil studi menunjukkan bahwa 48 bait Wasiat  Renungan Masa yang secara eksplisit dan tersurat menasyrihkan konsepsi pemikiran, kaidah, amanat,  dan  harapan  besar  tentang  Pendidikan  Holistik  Berbasis  Karakter  melalui  sembilan  pilar  karakter  dengan rincian yaitu Mencintai Tuhan dan ciptaan-Nya ditasyrihkan dalam 9 bait; Kemandirian dan  Tanggung jawab dalam 7 bait; Kejujuran dan Amanah dalam 4 bait; Hormat dan Santun dalam 5 bait;  Dermawan, Suka Tolong-Menolong, dan Gotong Royong dalam 5 bait; Percaya Diri dan Pekerja Keras  dalam 4 bait; Kepemimpinan dan Keadilan dalam 4 bait; Baik dan Rendah Hati dalam 5 bait; Toleransi,  Kedamaian, dan Kesatuan dalam 5 bait. Jadi, Tasyrih Wasiat Renungan Masa mengandung konsepsi  pemikiran dan kaidah Pendidikan Holistik Berbasis Karakter. CHARACTER-BASED HOLIS TIC EDUCATION IN TASYRIH OF WASIAT RENUNGAN  MASA OF TGKH. MUHAMMAD ZAINUDDIN ABDUL MAJIDThis study aims to explore the relevance of character-based holistic education values through  the nine pillars of character with the norms of the Will of the Devotion. This study is a qualitative  descriptive study through liberary research with the main sources, namely a book of Wasiat Renungan  Masa by Syaikh TGKH. Muhammad Zainuddin Abdul Majid and the book of Character Education: The  Right Solution for Building the Nation by Ratna Megawangi. The data analysis technique was carried  out in stages, namely reading, taking notes, analyzing, collecting concepts, then elaborating. The results  of the study show that 48 verses of the  Wasiat Renungan Masa explicitly and expressly embody the  conceptions of thoughts, rules, mandates, and high hopes about Character-Based Holistic Education  through nine pillars of character with details, namely Loving God and His Creation is revealed in 9  stanzas;  Independence  and  responsibility  in  7  stanzas;  Honesty  and  Trust  are  taught  in  4  stanzas;  Respect and courtesy in 5 stanzas; Generous, Helpful-Helpful, and Mutual Cooperation in 5 stanzas;  Confidence and Hard Work in 4 stanzas; Leadership and Justice in 4 stanzas; Good and Humble in 5  stanzas; Tolerance, Peace, and Unity in 5 stanzas. Therefore, the book of Wasiat Renungan Masa contains  explicit  and  expressly  express  conception  of  thoughts  and  rules  regarding  character-based  holistic  education.
MODEL PENDEKATAN KEPEMIMPINAN TRANSFORMASIONAL KEPALA SEKOLAH BERBASIS NILAI-NILAI BUDAYA, HUMANISTIK, DAN NASIONALISME DALAM PENGUATAN PENDIDIKAN KARAKTER
Authors: Effendi Yulius Rustan
Published: November 2021

This study aims to describe the reasons for applying the cultural, humanistic, and nationalism approaches by school principals in supporting transformational leadership behavior. In addition, to explore the steps of the principal's transformational leadership role based on three forms of approach in the implementation of character education strengthening programs. This study used a qualitative approach, case study design. Data collection through in-depth interviews, participant observation, and learn documentation. Data analysis used a modified analytic analysis method. The level of credibility, transferability, dependability, and confirmability examines the validity of the data. The research findings explain that culture or tradition greatly influences the school environment, personal excellence, and encouragement to revive the humanistic spiritual inspirational figure, as well as the image of the school foundation managed by the Military unit, Kodam V-Brawijaya, being the basic reason that inspires the principal to use a cultural, humanistic approach, and nationalism. Besides that the steps of the principal's transformational leadership role based on cultural, humanistic, and nationalism approaches have an effective effect in optimizing the implementation of character education strengthening in schools.
ANALISIS IMPLEMENTASI BUDAYA SEKOLAH DALAM MEMBENTUK KARAKTER RELIGIUS PESERTA DIDIK
Authors: Lutfiana Rose Fitria , Mey R Aflahul Awwalina , Handayani Trisakti
Published: November 2021

Abstrak: Penelitian ini bertujuan untuk mendeskripsikan bentuk budaya sekolah,  implementasi budaya sekolah, dan kendala implementasi budaya sekolah dalam membentuk karakter religius siswa serta solusinya. Penelitian ini menggunakan pendekatan deskriptif kualitatif. Penelitian dilakukan di MAN Kota Batu mulai Juli sampai September 2020. Subjek penelitian terdiri atas Plt. Kepala, Wakil Kepala bidang Kurikulum, guru PPKn, guru Akidah-Akhlak, dan siswa. Pengumpulan data menggunakan Teknik observasi, wawancara, dan dokumentasi. Analisis data dilakukan dengan teknik induktif. Hasil penelitian menunjukkan bahwa terdapat 16 budaya sekolah yang diimplementasikan di MAN Kota Batu. Impelementasi budaya sekolah dalam membentuk karakter religius siswa dilakukan melalui tiga aspek, yaitu kegiatan harian, mingguan, dan tahunan dengan berpedoman pada visi dan misi sekolah yang ingin dicapai. Kendala implementasi budaya sekolah dalam membentuk karakter religius siswa di antaranya: (a) karakteristik siswa yang beragam (b) lingkungan yang kurang mendukung, dan (c) kendala yang berasal dari guru. Solusi yang diberikan yaitu melakukan pendekatan khusus kepada siswa, membangun komunikasai dan memberikan pemahaman kepada orang tua, serta membangun komitmen yang kuat untuk keberhasilan pengimplementasi budaya sekolah. Kata kunci: implementasi, budaya sekolah, karakter religius.
Kesadaran Siswa terhadap Nilai-Nilai Karakter dalam Pembelajaran Virtual Trigonometri
Authors: Nugroho Wachid
Published: November 2021

Abstrak: Penelitian ini bertujuan untuk mengeksplorasi dan mendeskripsikan tingkat kesadaran siswa terhadap nilai-nilai karakter dalam pembelajaran virtual trigonometri. Pembelajaran virtual diharapkan berlangsung kaya makna dengan tetap menyajikan pengembangan nilai-nilai karakter walaupun guru dan siswa tidak dapat bertatap muka langsung karena situasi pandemi covid-19. Penelitian ini menggunakan pendekatan penelitian kualitatif dengan jenis penelitian deskriptif. Pengumpulan data menggunakan isian angket pertama melalui google form tentang pendapat siswa terhadap nilai-nilai karakter dalam pembelajaran virtual trigonometri. Pengumpulan data pendukung melalui isian angket kedua dengan pernyaaan skala likert 1-5 terhadap nilai karakter jujur, mandiri, rasa ingin tahu, kerja keras, berpikir kritis, tanggung jawab, kreatif, dan disiplin. Analisis data angket pertama dan kedua dilengkapi dan dikonfirmasi wawancara dengan beberapa siswa secara daring. Hasil penelitian menunjukkan bahwa kesadaraan siswa terhadap nilai-nilai karakter jujur, mandiri, rasa ingin tahu, kerja keras, tanggung jawab, dan disiplin pada kategori sangat tinggi. Kesadaran siswa terhadap nilai karakter berpikir kritis dan kreatif pada kategori tinggi. Kesadaran siswa terhadap nilai-nilai karakter tersebut diperoleh dari proses dan interaksi pembelajaran virtual trigonometri menggunakan microsoft teams dan link video youtube. Kata Kunci: kesadaran siswa, nilai-nilai karakter, pembelajaran virtual trigonometri.
HUBUNGAN WAKTU BERKUALITAS BERSAMA KELUARGA DAN KEPEDULIAN PEMBINA EKSTRAKURIKULER DENGAN KARAKTER SISWA
Authors: Adeyasa Rama , S.Hubeis Aida Vitayala , Purnaningsih Ninuk , Sadono Dwi
Published: November 2021

abstrak: Keluarga dan lingkungan sekolah memiliki peran penting dalam membentuk kepribadian remaja. Penelitian ini bertujuan untuk menggunakan konsep Positive Youth Development (PYD) yang belum populer di Indonesia. Konsep PYD meyakini bahwa potensi kebaikan dalam diri remaja akan tumbuh sebagai hasil interaksi antara karakteristik internal dan eksternal. Penelitian ini menggunakan pendekatan kuantitatif. Pengambilan data menggunakan kuesioner dengan format pernyataan menggunakan skala Likert 1-4 terhadap 316 siswa dari 15 SMA di Kota Bogor yang dipilih secara sengaja berdasarkan keikutsertaan mereka di dalam program ekstrakurikuler di sekolah. Analisis data dilakukan secara kuantitatif. Hasilnya bahwa waktu berkualitas remaja putri lebih tinggi daripada remaja laki-laki, sedangkan kompetensi remaja laki-laki lebih tinggi daripada remaja perempuan. Selain itu, terdapat hubungan positif dan signifikan antara empat komponen PYD yaitu kepercayaan diri, karakter, kepedulian, dan koneksi dengan waktu berkualitas bersama keluarga. Selain itu, terdapat hubungan positif antara seluruh komponen PYD dengan kepedulian pembina. Rekomendasi dari penelitian ini yaitu diperlukan dukungan dari berbagai pihak untuk memperbaiki waktu berkualitas bersama keluarga, sementara kepedulian pembina perlu terus dijaga agar tetap terlaksana dengan baik. Kata kunci: Positive Youth Development, Remaja, Sekolah Menengah Atas
PEMANFAATAN EKSTRAK DAUN JARAK PAGAR DAN LIMBAH MINYAK GORENG SEBAGAI SABUN ANTIBAKTERI
Authors: Aris Asmi , Gistiana Ilyas , Hanafia Hafiizhoh , Arianingrum,M.Si. Retno
Published: November 2021

Penelitian ini bertujuan untuk mengetahui karakteriktik sabun dari limbah minyak goreng dengan bahan aditif ekstrak daun jarak pagar (Jatropha curcas Linn) dan  menguji aktivitas bakterinya terhadap bakteri Staphylococus aureus dan Escherichia coli. Sabun dibuat melalui reaksi saponifikasi NaOH dengan limbah minyak goreng.antibakteri dengan bahan tambahan ekstrak daun jarak pagar (Jatropha curcas Linn) berdasarkan persyaratan SNI dan aktifitas antibakteri sabun dengan ekstrak daun jarak pagar terhadap bakteri Staphylococus aureus dan Escherichia coli. Metode yang digunakan dalam penelitian ini yaitu ekperimen laboratorium, dengan melakukan ekstraksi, pembuatan sabun, analisis karakteristik sabun dan uji aktifitas antibakteri. Hasil percobaan menunjukkan bahwa ektrak daun jarak pagar memiliki kandungan senyawa aktif fenol, saponin, tanin, dan flavonoid. Berdasarkan analisis ANOVA variasi konsentrasi ekstrak memberikan pengaruh sgnifikan pada pH dan kadar akali bebas sabun. Sabun menunjukan akivitas anti bakteri Staphylococus aureus dan Escherichia coli yag diketahui melalui pengukuran zona bening. Penelitian ini dapat diaplikasikan dimasyarakat sehinga memiliki prospek yang baik dari segi lingkungan dan ekonomi.
Влияние углеродных нанотрубок на термоэлектрические свойства сплавов Гейслера p- и n-типа
Authors: Elsehly E.M. , El-Khouly A. , Hassan Mohamed Asran , Новицкий А.П. , Карпенков Д.Ю. , Пашкова Д.С. , Чеченин Н.Г. , Uchimoto T. , Miki H. , Пархоменко Ю.Н. , Ховайло В.В.
Published: November 2021

This paper presents the results of studying the effect of carbon nanotubes on thermoelectric properties of
p-type (Nb0.6Ta0.4)0.8Ti0.2FeSb and n-type Ti0.5Zr0.25Hf0.25NiSn half Heusler alloys. The experimental data obtained indicate a strong effect of the carbon nanotubes on electrical conductivity and Seebeck coefficient of the n-type compound, while the changes in these properties in the p-type compound were significantly less. It is suggested that a possible reason for this difference is the formation of a conducting cluster of carbon nanotubes in the sample of the n-type Heusler alloy.
Исследование влияния технологических факторов на неопределенность результатов измерения теплопроводности методом лазерной вспышки
Authors: Макарова Е.С. , Асач А.В. , Тхоржевский И.Л. , Фомин В.Е. , Новотельнова А.В. , Митропов В.В.
Published: November 2021

The estimation of the deviation in the measurements of thermal conductivity by the laser flash method for materials with different thermal conductivity coefficients, arising due to the presence of a graphite coating on the sample and the small thickness of the sample, is carried out. A computer model of the method was created in the Comsol Multiphysics software environment. For bulk samples with a graphite coating thickness of 20 μm, the deviation is 5.5 %. The thickness of bulk samples does not affect the measurement results. For materials with low thermal conductivity, a sharp increase in the deviation is observed, reaching 60%. For thermally conductive materials, the deviation is 16-18%. For thin samples less than 10 μm thick, the thickness of the graphite coating does not affect the measurement results. The decisive factor is the duration of the laser pulse.
Деформация тонких пленок полуметаллов методом купольного изгиба подложки
Authors: Суслов А.В. , Герега В.А. , Грабов В.М. , Демидов Е.В. , Комаров В.А.
Published: November 2021

The results of a study of the semimetal films deformation produced by dome bending of the substrate are presented. Deformation control was carried out by means of X-ray diffraction analysis. It is shown that the dome bending method can be used to study films under planar deformation in a film-substrate system with different thermal expansion coefficients. The maximum in-plane deformation for bismuth films of 1 mkm
thickness order was found. It was shown that the deformation created by the dome bending of the substrate in combination with the use of substrates with different temperature expansion makes it possible to obtain a relative in-plane deformation of bismuth films up to 0.8% at 300 K.
Влияние ионной подсистемы на термоэлектрический эффект в коллоидных растворах
Authors: Сидоров А.В. , Грабов В.М. , Зайцев А.А. , Кузнецов Д.В.
Published: November 2021

The thermoelectric effect is investigated in mixtures of colloidal solutions with ionic electrolytes in the initial state, when the formation of concentration gradients under the influence of an inhomogeneous temperature field can be neglected. Based on experimental measurements in mixtures with different concentrations of colloidal particles and ions, the conditions under with the coefficient of thermoelectric EMF is determined by the ion subsystem and under which the main contribution to the value of the thermoelectric force is made by colloidal particles are determined.
МДП транзистор на основе пленки PbSnTe : In с подзатворным диэлектриком Al-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=--=SUP=-*-=/SUP=-
Authors: Климов А.Э. , Голяшов В.А. , Горшков Д.В. , Матюшенко Е.В. , Неизвестный И.Г. , Сидоров Г.Ю. , Пащин Н.С. , Супрун С.П. , Терещенко О.Е.
Published: November 2021

Results on the creation and properties of transistor-type MIS structures (MIST) with an Al2O3 thin-film gate dielectric based on PbSnTe:In films obtained by molecular beam epitaxy are presented. The source-drain current-voltage characteristics (CVC) and gate characteristics of the MIST at Т = 4.2 К have been investigated. It is shown that in MIST based on PbSnTe:In films with n ~ 1017 cm-3 the modulation of the channel current reaches 7 – 8 % in the range of gate voltages – 10 V < Ugate < + 10 V. The features of the source-drain CVC and the gate characteristics for a pulsed and sawtooth variation of Ugate are considered.
The Use of Wearable Pulse Oximeters in the Prompt Detection of Hypoxemia and During Movement: Diagnostic Accuracy Study
Authors: Santos Mauro , Vollam Sarah , Pimentel Marco AF , Areia Carlos , Young Louise , Roman Cristian , Ede Jody , Piper Philippa , King Elizabeth , Harford Mirae , Shah Akshay , Gustafson Owen , Tarassenko Lionel , Watkinson Peter
Published: November 2021

Background

Commercially available wearable (ambulatory) pulse oximeters have been recommended as a method for managing patients at risk of physiological deterioration, such as active patients with COVID-19 disease receiving care in hospital isolation rooms; however, their reliability in usual hospital settings is not known.

Objective

We report the performance of wearable pulse oximeters in a simulated clinical setting when challenged by motion and low levels of arterial blood oxygen saturation (SaO2).

Methods

The performance of 1 wrist-worn (Wavelet) and 3 finger-worn (CheckMe O2+, AP-20, and WristOx2 3150) wearable, wireless transmission–mode pulse oximeters was evaluated. For this, 7 motion tasks were performed: at rest, sit-to-stand, tapping, rubbing, drinking, turning pages, and using a tablet. Hypoxia exposure followed, in which inspired gases were adjusted to achieve decreasing SaO2 levels at 100%, 95%, 90%, 87%, 85%, 83%, and 80%. Peripheral oxygen saturation (SpO2) estimates were compared with simultaneous SaO2 samples to calculate the root-mean-square error (RMSE). The area under the receiver operating characteristic curve was used to analyze the detection of hypoxemia (ie, SaO2<90%).

Results

SpO2 estimates matching 215 SaO2 samples in both study phases, from 33 participants, were analyzed. Tapping, rubbing, turning pages, and using a tablet degraded SpO2 estimation (RMSE>4% for at least 1 device). All finger-worn pulse oximeters detected hypoxemia, with an overall sensitivity of ≥0.87 and specificity of ≥0.80, comparable to that of the Philips MX450 pulse oximeter.

Conclusions

The SpO2 accuracy of wearable finger-worn pulse oximeters was within that required by the International Organization for Standardization guidelines. Performance was degraded by motion, but all pulse oximeters could detect hypoxemia. Our findings support the use of wearable, wireless transmission–mode pulse oximeters to detect the onset of clinical deterioration in hospital settings.

Trial Registration

ISRCTN Registry 61535692; http://www.isrctn.com/ISRCTN61535692

International Registered Report Identifier (IRRID)

RR2-10.1136/bmjopen-2019-034404
Early Adopters of Apple Health Records at a Large Academic Medical Center: Cross-sectional Survey of Users
Authors: Rolnick Joshua , Ward Robin , Tait Gordon , Patel Neha
Published: November 2021

Background

Mobile applications offer a new approach to personal health records, which are internet-based tools for patients to consolidate and manage their health information. The University of Pennsylvania Health System (UPHS) was one of the first health systems to participate in Apple Health Records (AHR), a prominent example of this new generation of personal health records.

Objective

This study aimed to characterize early adoption of AHR among UPHS patients and understand user perspectives.

Methods

An email-based survey with fixed answer, Likert scale, and open-ended questions was administered to all UPHS patients using AHR in the first 10 months of enrollment. Survey data linked to the UPHS electronic health record system were used to analyze responses. Multivariable logistic regression modeled the association of patient characteristics with user ratings. Content analysis was used to analyze open-ended questions.

Results

At the time of the survey, a total of 1458 patients had used AHR at least once. Mean age of AHR users was 47.5 years, 66.3% (967/1458) were male, 70.9% (1033/1458) were white, and 80.8% (1178/1458) had private insurance. Response rate was 26.8% (391/1458); 46.3% (180/389) were very satisfied with AHR, and 67.7% (264/390) described it as very easy to use. The most commonly utilized features were lab results (324/391, 82.9%), clinical vitals (264/391, 67.5%), and medications (253/391, 64.7%). No patient characteristics were associated with reporting high satisfaction or ease of use. The most common reason for using AHR was convenience/ease of use, and 58.2% (160/275) of users reported allowing no other apps to access their health information, citing privacy as one consideration.

Conclusions

Early adopters of AHR were demographically white, male, and privately insured. Convenience was an important facilitator, and users were selective in which apps they allowed to access their health information.
Patients’ Perspectives on Transforming Clinical Trial Participation: Large Online Vignette-based Survey
Authors: Nguyen Van Thu , Ravaud Philippe , Tran Viet Thi , Young Bridget , Boutron Isabelle
Published: November 2021

Background

Patients’ participation is crucial to the success of randomized controlled trials (RCTs). However, recruiting and retaining patients in trials remain a challenge.

Objective

This study aims to describe patients’ preferences for the organization of RCTs (visits on- site or remotely) and evaluate the potential impact of fulfilling preferences on their willingness to participate in a clinical trial.

Methods

This was a vignette-based survey. Vignettes were case scenarios of real clinical trials assessing pharmacological treatments. These RCTs evaluated 6 prevalent chronic diseases (ie, osteoporosis, osteoarthritis, asthma, cardiovascular diseases, diabetes, and endometriosis). Each vignette described (1) the RCT and characteristics of the treatment tested (ie, doses, administration routes) and (2) the trial procedures and different options (on-site or remotely) for how the trial was organized for informed consent, follow-up visits, and communication of results when the trial was completed. We recruited 628 participants from ComPaRe (www.compare.aphp.fr), a French e-cohort of patients with chronic diseases. The outcomes were the participants’ preferences for the way the trial was organized (on-site or remotely) and their willingness to participate in the trial.

Results

Of the 628 participants who answered the vignettes, 491 (78.2%) were female (median age 55 years), with different chronic diseases ranging from endometriosis in 59 of 491 (12%) patients to asthma in 133 of 628 (21.2%) patients. In addition, 38 (6.1%) participants wanted to provide informed consent and all trial visits on-site, 176 (28%) wished to participate in the trial entirely remotely, and 414 (65.9%) wanted to combine remote-based and hospital-based visits. Considering the trial as a whole, when the trial was organized in a way that the patients preferred, the median (Q1-Q3) likelihood of participation in the trial was 90% (80-100) versus 60% (30-80) if the trial followed the patients’ nonpreferred model. Furthermore, 256 (40.8%) patients responded to open-ended questions expressing their experience with trial participation and visits to the hospital and providing suggestions for improvement. The patients emphasized the need to personalize the way a trial is organized according to each patient’s needs and conditions.

Conclusions

There was a significant diversity in the participants’ preferences. Most participants preferred hybrid organization involving both on-site and remote visits. Participants were more likely to participate in a trial organized according to their preferences.
Toward Using Twitter Data to Monitor COVID-19 Vaccine Safety in Pregnancy: Proof-of-Concept Study of Cohort Identification
Authors: Klein Ari Z , O'Connor Karen , Gonzalez-Hernandez Graciela
Published: November 2021

Background

COVID-19 during pregnancy is associated with an increased risk of maternal death, intensive care unit admission, and preterm birth; however, many people who are pregnant refuse to receive COVID-19 vaccination because of a lack of safety data.

Objective

The objective of this preliminary study was to assess whether Twitter data could be used to identify a cohort for epidemiologic studies of COVID-19 vaccination in pregnancy. Specifically, we examined whether it is possible to identify users who have reported (1) that they received COVID-19 vaccination during pregnancy or the periconception period, and (2) their pregnancy outcomes.

Methods

We developed regular expressions to search for reports of COVID-19 vaccination in a large collection of tweets posted through the beginning of July 2021 by users who have announced their pregnancy on Twitter. To help determine if users were vaccinated during pregnancy, we drew upon a natural language processing (NLP) tool that estimates the timeframe of the prenatal period. For users who posted tweets with a timestamp indicating they were vaccinated during pregnancy, we drew upon additional NLP tools to help identify tweets that reported their pregnancy outcomes.

Results

We manually verified the content of tweets detected automatically, identifying 150 users who reported on Twitter that they received at least one dose of COVID-19 vaccination during pregnancy or the periconception period. We manually verified at least one reported outcome for 45 of the 60 (75%) completed pregnancies.

Conclusions

Given the limited availability of data on COVID-19 vaccine safety in pregnancy, Twitter can be a complementary resource for potentially increasing the acceptance of COVID-19 vaccination in pregnant populations. The results of this preliminary study justify the development of scalable methods to identify a larger cohort for epidemiologic studies.
Outcomes Following eHealth Weight Management Interventions in Adults With Overweight and Obesity From Low Socioeconomic Groups: Protocol for a Systematic Review
Authors: Myers-Ingram Richard , Sampford Jade , Milton-Cole Rhian , Jones Gareth David
Published: November 2021

Background

Obesity is a complex health condition with multiple associated comorbidities and increased economic costs. People from low socioeconomic status (SES) backgrounds are more likely to be overweight and obese and are less successful in traditional weight management programs. It is possible that eHealth interventions may be more successful in reaching people from low SES groups than traditional face-to-face models, by overcoming certain barriers associated with traditional interventions. It is not yet known, however, if eHealth weight management interventions are effective in people living with overweight and obesity from a low SES background.

Objective

The primary aim of this study is to evaluate the efficacy of eHealth weight management interventions for people with overweight and obesity from low SES groups.

Methods

A systematic review on relevant electronic databases (MEDLINE, Embase, Emcare, and CINAHL) will be undertaken to identify eligible studies published in English up until May 2021. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) statement to guide the systematic review, two reviewers will independently screen, select, and extract data and complete a risk of bias assessment of search results according to predefined criteria. Studies that have investigated an eHealth weight management intervention within a low SES population will be included. Primary outcomes include weight, BMI, and percentage weight change compared at baseline and at least one other time point. Secondary outcomes may include a range of anthropometric and physical fitness and activity measures. If sufficient studies are homogeneous, then we will pool results of individual outcomes using meta-analysis.

Results

Searches have been completed, resulting in 2256 studies identified. Once duplicates were removed, 1545 studies remained for title and abstract review.

Conclusions

The use of eHealth in weight management programs has increased significantly in recent years and will continue to do so; however, it is uncertain if eHealth weight management programs are effective in a low SES population. The results of this systematic review will therefore provide a summary of the evidence for interventions using eHealth for people living with overweight and obesity and from a low SES background.

Trial Registration

PROSPERO International Prospective Register of Systematic Reviews CRD42021243973; https://tinyurl.com/2p8fxtnw

International Registered Report Identifier (IRRID)

DERR1-10.2196/34546
Multiculturalism in Worldview Nizami Ganjavi
Authors: OQLU KAZIMI PARVIZ FIRUDIN
Published: November 2021

Articles about the “concept” and “danger” of “Turanism” in political and publicistic works are often published in the international media, and this is so convincing that it has an impact on some scientific literature. In fact, on the contrary, materials obtained from scientific literature should be a source of political science and journalistic materials. In this context, we see that attempts to find a “brand” in historical research are still ongoing.We try to reveal the general picture, taking contradictions on this topic from the sources of the works of Nizami Ganjavi and Firdosi, as well as on the basis of existing historical documents. Has there ever been a state called Turan in history? If not, what was the source and purpose of this legend? If there was no Turan, how did Iran exist? Who won the war between Iran and Turan? If Firdosi knew this story, then why does Nizami write in his works the complete opposite of this story?As you can see, in addition to collecting tips from the works of Nizami and Firdosi to answer many questions, one can distinguish place names and ethnonyms from ancient mythology and Zoroastrianism and determine the true “threat” by creating a general picture, defining the history and geography of events.This article attempts to answer some questions by comparing a number of historical, literary events and positions.
Delineating Delhi: Spaces of the Neoliberal Urbanism in Tarun Tejpal’s The Story Of My Assassins
Authors: Nandi Swaralipi
Published: November 2021

Recent Indo-Anglican literature has also seen a burgeoning of the genre of urban crime fictions set against the backdrop of India’s modernizing metropolises. While explorations of the contemporary Indian city mostly consists of non-fictional, journalistic writings, like Katherine Boo’s Pulitzer winning book Behind the Beautiful Forevers, William Dalrymple’s City of Djinns and Suketu Mehta’s Maximum City, the genre also includes fictions like Altaf Tyrewala’s critically acclaimed debut novel No God in Sight, Vikram Chandra’s bestseller Sacred Games, Tarun Tejpal’s The Story of My Assassins, Hrish Sawhney’s volume of short stories Delhi Noir, Atish Tasser’s The Templegoers and others, which deal with the dark underside of the cities. Significantly, as rapid urban growth deepens existing disparities, a distinct rhetoric conflating impoverishment and criminality emerges, further justifying the exclusion of certain sections from the vision of urbanism. This paper looks at the representation of Delhi in Tarun Tejpal’s novel The Story of My Assassins, as a dystopic space riddled with contradictions of.
MAPIRANJE ZAKONOM DEFINISANIH USLUGA SOCIJALNE ZAŠTITE U REPUBLICI SRBIJI ZA ŽENE I DECU ŽRTVE NASILJA U PORODICI I NJIHOVO RAZMATRANJE U KONTEKSTU ODGOVORA NA KRIZNU SITUACIJU IZAZVANU KORONAVIRUSOM
Authors: Lacmanovic Vedrana , Zecevic Anja
Published: November 2021

Predmet članka bio je normativni okvir kojim su definisane usluge socijalne zaštite i njihovo ostvarivanje u praksi u kontekstu odgovora na kriznu situaciju izazvanu koronavirusom. Cilj je bio da se ustanovi koje usluge socijalne zaštite namenjenih ženama koje preživljavaju nasilje u partnerskim odnosima i u porodici obezbeđuju jedinice lokalne samouprave, koliko one odgovaraju na njihove specifične potrebe, ali i koliki su i kakvi kapaciteti sistema socijalne zaštite da na te potrebe odgovori. Korišćene su kvantitativna (izračunavanje procenata) i kvalitativna (kategorisanje, deskripcija, komparacija) metoda. Ustanovljeno je da su usluge malobrojne, da nisu odgovarajuće geografski raspoređene, da su nedovoljno pristupačne za žene pripadnice višestruko marginalizovanih grupa, da se za njih izdvajaju minimalna budžetska sredstva, kao i da sistem nema dovoljno resursa i znanja da ih obezbedi. Uočene su dodatne poteškoće u kontekstu adaptacije pružanja usluga u kontekstu odgovora na kriznu situaciju izazvanu koronavirusom. U zaključku su date preporuke u pogledu toga šta je potrebno uraditi kako bi se uklonile postojeće prepreke.
МЕХАНИЗМ КОЭРЦИТИВНОСТИ В ТОНКИХ ПЛЕНКАХ NI0,76FE0,18CO0,06
Authors: Грабов А.Б. , Баранов А.А. , Обижаев Д.Ю. , Жукова С.А.
Published: November 2021

Рассмотрен механизм возникновения коэрцитивности в тонких пленках мягких ферромагнетиков. Показана связь Hc с параметрами гальваномагнитного транспорта в металле. В тонких пленках Ni0 76Fe018Co0 06 6-зондовым методом измерены гальваномагнитные эффекты. Описаны два типа зависимостей Нс = f(9).
РАЗРАБОТКА И ИССЛЕДОВАНИЕ МИКРОМЕХАНИЧЕСКОГО ДАТЧИКА УДАРА
Authors: Кочурина Е.С. , Виноградов А.И. , Боев Л.Р. , Зарянкин Н.М. , Анчутин С.А. , Тимошенков А.С.
Published: November 2021

Приведено описание разработанной конструкции микромеханического датчика удара, изложены результаты моделирования: модального анализа, анализа при воздействии удара. Приведены результаты испытаний, показывающие соответствие изготовленных датчиков модели.