bluuebunny/crossref_metadata_2025 huggingface dataset:
DEVELOPING OF PERSONAL LEADERSHIP LEARNING MODEL FOR VOCATIONAL SCHOOL STUDENTS
Authors: Adnan Dana Rizki Nur
Published: July 2020

This study was aimed at developing and investigating the feasibility of the personal leadership learning model for vocational students in the Mechanical Engineering Expertise Program. The personal leadership learning model used in this study is a learning model adapted from Scouller's personal leadership model. The subjects in this study were students of class X of the Mechanical Engineering Department of 2017/2018 and the teachers, while the object of research was the personal leadership model. Research and development approach was used in this study with the development procedure including data collection and analysis, initial product development, validation, product testing, revision, and final product. The data were gathered by interviews, observations, and survey. The data then were analyzed using qualitative descriptive method. The results of the study produce a personal leadership learning model which is declared by material experts and expert learning models, as a feasible and applicable model. Personal leadership learning model is effective in improving students' activity, especially in asking or giving opinion.PENGEMBANGAN MODEL PEMBELAJARAN PERSONAL LEADERSHIP PADA SISWA SEKOLAH MENENGAH KEJURUANPenelitian ini bertujuan mengembangkan dan menguji kelayakan model pembelajaran personal leadership untuk siswa SMK Program Keahlian Teknik Pemesinan. Model pembelajaran personal leadership yang digunakan dalam peneltian ini merupakan model pembelajaran yang diadaptasi dari model personal leadership menurut Scouller. Subjek dalam penelitian ini adalah siswa kelas X Jurusan Teknik Pemesinan 2017/2018 dan Guru SMK, sedangkan objek penelitian adalah model personal leadership. Pendekatan penelitian dan pengembangan (Research & Development) digunakan dalam penelitian ini dengan prosedur pengembangan mencakup analisis dan pengumpulan data, pengembangan produk awal, validasi, uji coba produk, revisi, dan produk akhir. Pengumpulan data dilakukan dengan wawancara, observasi, dan survei. Data dianalisa dengan menggunakan metode deskriptif kualitatif. Hasil penelitian menyatakan bahwa model pembelajaran personal leadership yang dikembangkan dinyatakan sangat layak oleh ahli materi dan ahli model pembelajaran, serta dinyatakan dapat diterapkan dalam proses pembelajaran oleh siswa dan guru. Model pembelajaran personal leadership efektif dalam meningkatkan aktivitas siswa, terutama dalam aktivitas bertanya atau berpendapat.
MODEL PENDIDIKAN OLAH RAGA BERBASIS KETERAMPILAN GERAK DASAR
Authors: Ginanjar Agi , Suherman Adang , Juliantine Tite , Hidayat Yusuf
Published: July 2020

Penelitian ini bertujuan untuk menguji perbedaan pengaruh Sport Education Model (SEM) atau model pendidikan olah raga menggunakan racquet sports antara siswa yang memiliki Fundamental Movement Skills (FMS) tinggi dan siswa yang memiliki FMS rendah terhadap orientasi olahraga siswa SMP. Metode yang digunakan dalam penelitian ini adalah metode penelitian eksperimen murni dengan posttest-only control design. Populasi dalam penelitian ini siswa SMP sebanyak 174 orang dengan sampel sebanyak 40 orang menggunakan simple random sampling. Program ini meliputi tiga tahap, yaitu skill/tactical development, inter/intra team games with practices, dan postseason dengan menggunakan gabungan dari berbagai model pembelajaran, seperti direct instruction, cooperative, dan peer. Instrumen penelitian untuk FMS menggunakan tes FMS dan untuk orientasi olah raga menggunakan Sport Orientation Questionnaire (SOQ). Uji signifikansi dengan independent samples t-test. Hasil penelitian menyatakan bahwa terdapat pengaruh SEM pada siswa dengan FMS tinggi dan FMS rendah terhadap orientasi olah raga siswa SMP sehingga penelitian ini menyimpulkan bahwa SEM memberikan pengaruh terhadap orientasi olah raga siswa. Daya saing merupakan subskala yang paling berperan dalam orientasi olah raga siswa.SPORT EDUCATION MODEL WITH FUNDAMENTAL MOVEMENT SKILLSThis study was aimed at examining the differences in the effect of SEM using racquet sports between the students who have high FMS and students who have low FMS towards the sports orientation of junior high school. The method used in this study was the true experimental research method with posttest-only control group design. The population in this study consisted of 174 junior high school students with a sample of 40 people taken using the simple random sampling method. This program included three stages, namely skill/tactical development, inter/intra-team games with practices, and postseason by using a combination of various learning models, such as direct instruction, cooperative learning, and peer learning. The instruments for examining the FMS was an FMS test while for examining sports orientation was the Sport Orientation Questionnaire (SOQ). Independent samples t-test was used to test the significance. The results show that SEM had an influence on students' sports orientation. Competitiveness is the subscale that plays the most role in student sports orientation.
PENGARUH E-LEARNING EDMODO DENGAN MODEL BLENDED LEARNING TERHADAP MINAT BELAJAR
Authors: Fauziyah Syifa , Triyono Mochamad Bruri
Published: July 2020

Penelitian ini bertujuan untuk menginvestigasi pengaruh dari pembelajaran e-learning edmodo dengan model blended learning terhadap minat belajar. Jenis penelitian yang digunakan adalah penelitian kuantitatif menggunakan quasy-experimental design with pretest-posttest and control group. Pengambilan sampel penelitian dilakukan dengan menggunakan intax group comparison. Jumlah sampel yang digunakan berjumlah 60 siswa yang terdiri dari 2 kelas pada Program Keahlian Teknik Komputer dan Jaringan di salah satu SMK Negeri yang ada di Yogyakarta. Pengumpulan data penelitian menggunakan metode kuisioner dan observasi. Analisis data yang digunakan dalam penelitian ini mengunakan uji-t sedangkan untuk mengetahui efektivitas pembelajaran e-learning edmodo dengan model blended learning menggunakan rumus standart gain dari Ricard R. H. Hasil penelitian menunjukkan bahwa adanya pengaruh yang signifikan antara siswa yang belajar menggunakan e-learning edmodo model blended learning dengan siswa yang belajar dengan bantuan slide presentasi. Selain itu, ditinjau dari nilai gain pada pembelajaran e-learning edmodo dengan model blended learning memiliki kriteria sedang dan pada kelas yang dibelajarkan dengan bantuan slide presentasi memiliki kategori rendah. THE EFFECT OF EDMODO E-LEARNING USING BLENDED LEARNING MODEL ON LEARNING INTERESTThis study was aimed at investigating the effect of edmodo e-learning using blended learning model on learning interest. This study used quantitative research combined with quasy-experimental design and pretest-posttest and control group. The sample was chosen using intax group comparison. Sixty students were chosen as the sample of this study consisting of 2 classes of Computer and Network Engineering Expertise Program at one of the State Vocational Schools in Yogyakarta. The data were collected using questionnaire and observation methods. The data then analyzed using t-test. To determine the effectiveness of edmodo e-learning using blended learning model, the standard gain formula proposed by Ricard R.H. was used. The results of this study show that there is a significant effect between the students learning using edmodo e-learning with blended learning model compares to the students learning using presentation slides only. Viewed from the gain value, edmodo e-learning with blended learning model has medium criteria, while the class taught with the aided of presentation slides has a low category.
UJI ANTIBAKTERI MASKER KEFIR SUSU KAMBING PADA Staphylococcus epidermidis SECARA IN VITRO
Authors: Ningsih Ajeng Desti , Khikmah Nur
Published: July 2020

Penelitian ini bertujuan untuk mengetahui antibakteri masker kefir susu kambing pada Staphylococcus epidermidis dan menghitung jumlah koloni Bakteri Asam Laktat (BAL) dan khamir. Uji antibakteri dilakukan dengan metode difusi sumuran. Antibakteri masker kefir ditunjukkan dengan adanya zona hambat yang terbentuk di sekitar sumuran. Spread plating dilakukan untuk menghitung koloni bakteri asam laktat dan khamir. Medium MRSA dan PDA diinkubasi pada suhu 37ºC selama 2-3 x 24 jam. Jumlah koloni yang tumbuh dihitung menggunakan metode Standard Plate Count dengan jumlah koloni 30-300, dan dinyatakan dalam satuan CFU/g. Hasil penelitian menunjukkan bahwa masker kefir mempunyai sifat bakteriostatik. Kemampuan antibakteri masker kefir susu kambing pada Staphylococcus epidermidis disebabkan karena di dalam supernatan masker kefir terdapat senyawa antibakteri. Hal ini ditandai dengan terbentuknya zona irradikal. Rerata koloni BAL pada masker kefir susu kambing A dan B adalah 1,5×109 dan 1,2×1010 CFU/g. Rerata jumlah koloni khamir pada masker kefir susu kambing A dan B adalah 2,1×1010 dan >3,0×1010 (3,9×1010) CFU/g.ANTIBACTERIAL OF GOAT’S MILK KEFIR MASK ON Staphylococcus epidermidis IN VITROThis study was aimed at determining the antibacterial goat’s milk kefir mask on Staphylococcus epidermidis and the number of Lactic Acid Bacteria (BAL) and the number of yeast colonies. The antibacterial test was carried out using the diffusion method of the wells. The antibacterial activity in the kefir mask is shown by the presence of inhibitory zones that form around the well. Spread plating was done to calculate the colonies of lactic and yeast acid bacteria. MRSA and PDA medium were incubated at 37ºC for 2-3 x 24 hours. The number of growing colonies is calculated using the Standard Plate Count method with the number of colonies of 30-300 and expressed in units of CFU/g. The results showed that kefir masks had bacteriostatic properties. The antibacterial ability of goat’s milk kefir mask was since the kefir supernatant contained antibacterial compounds. This is indicated by the formation of an nonradical zone. The mean of BAL colonies in goat milk masks A and B was 1.5 × 109 and 1.2 × 1010 CFU/g. The average number of yeast colonies in Goat milk masks A and B was 2.1 × 1010 and> 3.0 × 1010 (3.9 × 1010) CFU/g.
Impact of National Containment Measures on Decelerating the Increase in Daily New Cases of COVID-19 in 54 Countries and 4 Epicenters of the Pandemic: Comparative Observational Study
Authors: Wong Carlos K H , Wong Janet Y H , Tang Eric H M , Au Chi Ho , Lau Kristy T K , Wai Abraham K C
Published: July 2020

Background

Coronavirus disease (COVID-19) is a worldwide epidemic, and various countries have responded with different containment measures to reduce disease transmission, including stay-at-home orders, curfews, and lockdowns. Comparative studies have not yet been conducted to investigate the impact of these containment measures; these studies are needed to facilitate public health policy-making across countries.

Objective

The aim of this study was to describe and evaluate the impact of national containment measures and policies (stay-at-home orders, curfews, and lockdowns) on decelerating the increase in daily new cases of COVID-19 in 54 countries and 4 epicenters of the pandemic in different jurisdictions worldwide.

Methods

We reviewed the effective dates of the national containment measures (stay-at-home order, curfew, or lockdown) of 54 countries and 4 epicenters of the COVID-19 pandemic (Wuhan, New York State, Lombardy, and Madrid), and we searched cumulative numbers of confirmed COVID-19 cases and daily new cases provided by health authorities. Data were drawn from an open, crowdsourced, daily-updated COVID-19 data set provided by Our World in Data. We examined the trends in the percent increase in daily new cases from 7 days before to 30 days after the dates on which containment measures went into effect by continent, World Bank income classification, type of containment measures, effective date of containment measures, and number of confirmed cases on the effective date of the containment measures.

Results

We included 122,366 patients with confirmed COVID-19 infection from 54 countries and 24,071 patients from 4 epicenters on the effective dates on which stay-at-home orders, curfews, or lockdowns were implemented between January 23 and April 11, 2020. Stay-at-home, curfew, and lockdown measures commonly commenced in countries with approximately 30%, 20%, or 10% increases in daily new cases. All three measures were found to lower the percent increase in daily new cases to <5 within one month. Among the countries studied, 20% had an average percent increase in daily new cases of 30-49 over the seven days prior to the commencement of containment measures; the percent increase in daily new cases in these countries was curbed to 10 and 5 a maximum of 15 days and 23 days after the implementation of containment measures, respectively.

Conclusions

Different national containment measures were associated with a decrease in daily new cases of confirmed COVID-19 infection. Stay-at-home orders, curfews, and lockdowns curbed the percent increase in daily new cases to <5 within a month. Resurgence in cases within one month was observed in some South American countries.
The Unparalleled Growth of COVID-19 Publications (Preprint)
Authors: Fontelo Paul , Bastola Mrigendra , Locatis Craig , Liu Fang
Published: July 2020

UNSTRUCTURED

The global pandemic of COVID-19 has generated an unprecedented number of research papers from clinicians and scientists worldwide. We searched PubMed for articles on coronaviruses from 1970 to June 2020. Surges of publications occurred in 2003 from SARS and, again in 2012 from MERS. Although the name COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was only announced by WHO in February 2020, the number of publications has already exceeded 16000 by June this year. China and the US lead in publications, but a significant number also come from countries hardest hit by the illness. International collaborative publishing is significant. Since these publications are generally free to access worldwide, it provides a rich evidence base for clinicians and scientists combatting the COVID-19 pandemic.
A proposed static electricity mechanism of covid19 spreading. (Preprint)
Authors: Amdur Shimon
Published: July 2020

BACKGROUND

Explain a proposed static electricity mechanism of covid19 spreading.

OBJECTIVE

Explain a proposed static electricity mechanism of covid19 spreading.

METHODS

Explain a proposed static electricity mechanism of covid19 spreading.

RESULTS

Explain a proposed static electricity mechanism of covid19 spreading.

CONCLUSIONS

Explain a proposed static electricity mechanism of covid19 spreading.

CLINICALTRIAL

Explain a proposed static electricity mechanism of covid19 spreading.
Dissemination and Refutation of Rumors During the COVID-19 Outbreak in China: Infodemiology Study (Preprint)
Authors: Chen Bin , Chen Xinyi , Pan Jin , Liu Kui , Xie Bo , Wang Wei , Peng Ying , Wang Fei , Li Na , Jiang Jianmin
Published: July 2020

BACKGROUND

During the outbreak of COVID-19, numerous rumors emerged on the internet in China and caused confusion among the public. However, the characteristics of these rumors in different phases of the epidemic have not been studied in depth, and the official responses to the rumors have not been systematically evaluated.

OBJECTIVE

The aims of this study were to evaluate the rumor epidemic and official responses during the COVID-19 outbreak in China and to provide a scientific basis for effective information communication in future public health crises.

METHODS

Data on internet rumors related to COVID-19 were collected via the Sina Weibo Official Account to Refute Rumors between January 20 and April 8, 2020, extracted, and analyzed. The data were divided into five periods according to the key events and disease epidemic. Different classifications of rumors were described and compared over the five periods. The trends of the epidemic and the focus of the public at different stages were plotted, and correlation analysis between the number of rumors and the number of COVID-19 cases was performed. The geographic distributions of the sources and refuters of the rumors were graphed, and analyses of the most frequently appearing words in the rumors were applied to reveal hotspots of the rumors.

RESULTS

A total of 1943 rumors were retrieved. The median of the response interval between publication and debunking of the rumors was 1 day (IQR 1-2). Rumors in text format accounted for the majority of the 1943 rumors (n=1241, 63.9%); chat tools, particularly WeChat (n=1386, 71.3%), were the most common platform for initial publishing of the rumors (n=1412, 72.7%). In addition to text rumors, Weibo and web pages were more likely to be platforms for rumors released in multimedia formats or in a combination of formats, respectively. Local agencies played a large role in dispelling rumors among social media platforms (1537/1943, 79.1%). There were significant differences in the formats and origins of rumors over the five periods (P<.001). Hubei Province accounted for most of the country’s confirmed rumors. Beijing and Wuhan City were the main centers for debunking of disinformation. The words most frequently included in the core messages of the rumors varied by period, indicating shifting in the public’s concern.

CONCLUSIONS

Chat tools, particularly WeChat, became the major sources of rumors during the COVID-19 outbreak in China, indicating a requirement to establish rumor monitoring and refuting mechanisms on these platforms. Moreover, targeted policy adjustments and timely release of official information are needed in different phases of the outbreak.
АЛГОРИТМ АВТОМАТИЧЕСКОГО ПОСТРОЕНИЯ МАЛОСИГНАЛЬНОЙ МОДЕЛИ GAAS PHEMT- ТРАНЗИСТОРА И ЕГО РЕАЛИЗАЦИЯ В САПР
Authors: Калентьев А.А. , Попов А.А. , Билевич Д.В. , Добуш И.М. , Горяинов А.Е. , Файль Т.Н.
Published: July 2020

Показаны результаты разработки алгоритма построения малосигнальной модели GaAs pHEMT-транзистора. Алгоритм реализован в виде плагина для САПР СВЧ-устройств NI AWR Design Environment. Алгоритм представляет собой комбинацию различных методик построения малосигнальных моделей. Он позволяет получить модели СВЧ-транзисторов в автоматическом режиме непосредственно в САПР. Экспериментальные исследования показали хорошее совпадение модели, полученной прямой экстракцией, с результатами измерений.

The paper highlights the results of developing a GaAs pHEMT small-signal modeling algorithm. The algorithm has been implemented in the microwave EDA NI AWR Design Environment. The algorithm is a combination of the different techniques for small-signal model extraction. It allows automatically getting the microwave transistor model directly in the EDA. Experimental studies have shown a good agreement between directly extracted model and measurements results.
THE RELATIONSHIP BETWEEN POPULATION AGING AND MEDICAL EXPENDITURES IN ROMANIA
Authors: Sala Lucian Adrian
Published: July 2020

With recent developments in the medical field and faster access to medical professional and healthcare services providers, accompanied by better education and a higher level of hygiene, life expectancy for both males and females in Romania is increasing at a steady pace. From a medical point of view, this is a remarkable accomplishment when compared with past decades when the average life expectancy was much lower than in recent times. A longer life span will automatically, for the most part, have the unwanted effect of increasing spending on medical services on behalf of the state to ensure a better quality of life for the elderly. Therefore, the public health system will be placed under additional pressure on behalf of healthcare providers to offer higher quality services to the elderly. This paper aims to explore the degree of influence that age and income have on the growing costs of medical expenditures on a per capita level. The method employed in exploring to what extent the growing share of elderly individuals and income can explain the rise in medical expenditures is a multiple linear regression model. The expected results are that as the share of elderly individuals grows within Romania’s population and similarly as income on a per capita bases rises, there will be a noticeable increase in per capita medical expenditures.
An Assessment of Room Acoustics Performance of Baiturrahman Grand Mosque
Authors: Sari Laina Hilma , Zulfian Zulfian
Published: July 2020

Abstract : Acoustical design as part of the audio comfort influences the architectural design strategy of a mosque significantly. As belonging to the speech room criteria, a mosque should meet some acoustic room requirements to deliver the solemnness to the worshipper during the prayer. Concerning this, the study aims to assess the indoor acoustics performance of Baiturrahman Grand Mosque, Banda Aceh. Baiturrahman grand mosque is an important place of worship for Acehnese and becoming a landmark of Banda Aceh City. The mosque which contains a lot of history of Aceh was built in heavy construction, i.e. concrete wall, marble coated floor, and concrete dome ceiling. Due to its significance, the room acoustics of the mosque as the primary design considerations in a speech room type is evaluated. The acoustics parameters estimated are Noise Criteria (NC), Sound Pressure Level (SPL), Reverberation Time (RT), and Rapid Speech Transmission Index (RASTI). The background noise was recorded for delivering the noise criteria and being the primary data carried out in the acoustic simulation. The study utilised CATT-Acoustic v7.2 software for simulating predicting SPL, RT, and RASTI.Abstrak : Desain akustik merupakan bagian dari parameter audio yang mempengaruhi desain arsitektur masjid secara signifikan. Masjid termasuk dalam kategori speech room yang harus memenuhi beberapa persyaratan akustik ruang untuk dapat menghadirkan kekhusyukan kepada jamaah selama sholat. Penelitian ini bertujuan untuk menilai kinerja akustik dalam ruangan Masjid Raya Baiturrahman, Banda Aceh. Masjid Raya Baiturrahman adalah tempat ibadah yang penting bagi orang Aceh dan menjadi simbol Kota Banda Aceh. Masjid yang memuat banyak sejarah Aceh ini terbuat dari dinding beton, lantai berlapis marmer, dan langit-langit kubah beton. Pada studi ini, parameter akustik ruang yang dievaluasi adalah Kriteria Kebisingan (NC), Tingkat Tekanan Suara (SPL), Waktu Gema (RT), dan Indeks Transmisi kecepatan Bicara (RASTI). Kebisingan latar belakang direkam untuk memberikan kriteria kebisingan dan menjadi data primer yang dilakukan dalam simulasi akustik. Studi ini menggunakan perangkat lunak CATT-Acoustic v7.2 untuk mensimulasikan prediksi SPL, RT, dan RASTI.
The Characterization of Oyster Shell (Crassostrea gigas) as Adsorbent in The Removal of Cr(VI) Ions. A Study of NaOH and H2SO4 Activation Effect
Authors: Handayani Lia , Rahmawati Cut , Nurhayati Nurhayati , Astuti Yayuk , Darmawan Adi
Published: July 2020

Abstract : Oyster shell as one of the highest bio-waste in Alue Naga Aceh Besar District, Indonesia, was used as an adsorbent to remove a heavy metal Cr (VI) ion. The study was started by calcinating oyster shells at a high temperature of 800 ºC for 3 hours. The effect of various acid (H2SO4) and base (NaOH) activator was studied using characterization and adsorption experiments. The characterization obtained the sample activated by 10% NaOH (Na10-ACT) and 10% H2SO4 (H10-ACT) had the highest surface area which had 14.23 m2/g, 10.77 m2/g, respectively. Furthermore, the adsorption experiments confirmed the highest surface area by showing the highest Cr (IV) ion removal of 57.66%, 70.7%, respectively. The further investigation using X-ray fluorescence (XRF) determined that the Na10-ACT adsorbent has a better composition compared to the H10-ACT due to its high purities.Abstrak : Cangkang tiram sebagai salah satu bio-limbah padat di Desa Alue Naga Kabupaten Aceh Besar, digunakan sebagai adsorben untuk menghilangkan ion logam berat Cr (IV). Penelitian ini diawali dengan mengkalsinasi cangkang tiram pada temperatur tinggi 800ºC selama tiga jam. Pengaruh penambahan aktivator asam (H2SO4) dan basa (NaOH) juga dipelajari melalui karakterisasi dan pengujian adsorpsi. Hasil karakterisasi menunjukkan sampel yang diaktivasi dengan 10% NaOH (Na10-ACT) dan 10% H2SO4 (H10-ACT) memiliki luas permukaan tertinggi yaitu 14,23 m2/g, 10,77 m2/g, masing-masing. Lebih lanjut, pengujian adsorpsi juga mendukung luas permukaan yang tinggi dengan menghilangkan ion Cr (IV) sebesar 57,66%, 70,7%, masing-masing. Investigasi melalui analisa XRF menyimpulkan bahwa Na10-ACT memiliki komposisi yang lebih baik dibanding H10-ACT karena memiliki kemurnian yang tinggi.
EFEKTIVITAS PEMBELAJARAN MATEMATIKA MELALUI PEMBELAJARAN AKTIF TIPE EVERYONE IS A TEACHER HERE (ETH) PADA SISWA KELAS X SMA NEGERI 8 TAKALAR
Authors: Wahyuddin Wahyuddin , Nurcahaya Nurcahaya
Published: July 2020

This type of research was pre-experimental research (one group pretest-posttes design) which involved a class as an experimental class that aimed to determine the effectiveness of the Everyone Is A Teacher Here (ETH) Active Learning Model in Mathematics learning at 10th grade students in SMA Negeri 8 Takalar. This study referred to the criteria of the effectiveness of learning, namely: (1) individual learning completeness, gain and classical, (2) students’ activity in learning process, and (3) students’ response in learning process, (4) improvement of students' mathematics learning outcomes after the application of active learning model type Everyone Is A Teacher Here.Subjects in this study were students of class X MIA 3 SMA Negeri 8 Takalar as many as 30 students. The research was conducted for 6 meetings. Data collection techniques used are the test of learning outcomes, student activity observation sheets and the implementation of learning, and questionnaire responses of students. Data analysis techniques used were descriptive analysis to describe the learning outcomes, student activities, learning implementation, and student responses and infrensial analysis with normality test and hypothesis testing with One Sample t-test. The results shown that: (1) the average score of students' mathematics learning outcomes before being applied Active learning model Type Everyone Is A Teacher Here (ETH) was 85.7 and in the high category, where 27 students or 90% reach individual completeness, 3 students or 10% did not reach the completeness of individuals and this mean that the completeness of the classical was achieved with a normalized gain value of 0.78 in the high category. (2) Student activity in following learning with average percentage of student active activity is 83,3%. (3) The average of learning activity is 3.57 and it was in the category was done very well. (4) Student response to learning mathematics with Active Learning Model Type Everyone Is A Teacher Here (ETH) students who responded positively with the percentage of 85.1% and 14.9% of students who responded negatively. Thus it can be concluded that the Active Model of Learning Type Everyone Is A Teacher Here (ETH) was effectively applied in learning mathematics of students of class X SMA Negeri 8 Takalar.
PENGGUNAAN SOFTWARE ANATES DALAM PEMBELAJARAN EVALUASI PENDIDIKAN PADA MAHASISWA NON MATEMATIKA FTIK IAIN LANGSA
Authors: Nazliati Nazliati
Published: July 2020

Evaluation is a process of measurement and assessment. It is a very crucial in teaching learning process. Education and teacher training faculty (FTIK) of IAIN Langsa stated that educational evaluation as a compulsory subject that the students have to study.  However, some of non-mathematics students face difficulty in analyzing data because of number, formulas and accuracy in calculation. The objective of this study is to determine the use of Anates software in studying educational evaluation. This study is conducted in quantitative method while pretest-posttest group experimental design is used. The unit 3 of PAI students is assigned as a sample by using purposive sampling. The result shown that there is a significant different result between before and after Anates software taught where 3 categories of enhancement have indicated, 47,06% for high level,  35,29% for moderate level and 17,65% for low level. Hence, the use of Anates software can help non mathematics students in studying educational evaluation and the learning process is more efficient and accurate.
PENDEKATAN PEMECAHAN MASALAH UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI TRIGONOMETRI
Authors: Hayati Rahmi
Published: July 2020

This study is entitled Problem Solving Approach to improve student learning outcomes in Trigonometry Materials. The purpose of this study is to describe learning that can improve student achievement with the Problem Solving Approach in Trigonometry Materials in Class X SMA Negeri 1 Bireuen. This study uses a qualitative approach to the type of Classroom Action Research (CAR). As for the subjects of the study were all grade X students of SMA Negeri 1 Bireuen and 5 students were taken as interview subjects with high, medium, and low ability criteria. Research data collected in the form of tests, interview observations and field notes. Student responses about problem solving approaches were also very good. It was proven that they enjoyed learning with the problem solving approach. This research was carried out in one action with II cycle. In the first cycle, the results of the study showed that the observations of the researchers 'activities reached 87.50% and the results of observations of the students' activities reached 81.67%. While the success of the final test of the first cycle I action reached 78.13%. Thus according to the established criteria said to be unsuccessful, for that the researcher entered the second cycle and corrected the existing weaknesses in cycle I. In the second cycle, the results of the study showed that the observations of the researchers 'activities reached 91.67% and the results of observations of the students' activities reached 89.17%. While the success of the final test cycle II action reached 87.10%. Based on the results of the final test I cycle II action that learning has reached the specified criteria that is 85% of students got a score ≥ 65 so that this study was said to be successful. Student responses about problem solving approaches were also very good. It was proven that they enjoyed learning with a problem solving approach.
PENINGKATAN HASIL BELAJAR MATEMATIKA MATERI VOLUME TABUNG MELALUI PENDEKATAN OPEN-ENDED PADA SISWA MTS TERPADU KOTA LANGSA
Authors: Azizah Azizah
Published: July 2020

The research objective was to determine the improvement of student learning outcomes in mathematics learning through the adoption of an open-end approach in class IX-A Integrated MTs of Langsa City even semester 2018/2019. By using classroom action research, because this research was conducted to solve learning problems in class through cycles of plans, actions, observations and reflections. The results of this study indicate that the open-ended approach has a positive impact in improving learning outcomes on the tube volume material in learning mathematics. This can be seen from the better understanding of students of the material delivered by the teacher (mastery learning increases from the first and second cycles), namely respectively 62% and 94%. In the second cycle classical student mastery learning has been achieved.
Pengaruh Motivasi Kerja, Kemampuan dan Kreativitas Terhadap Kinerja UKM Kerupuk Udang di Kecamatan Tungkal Ilir Kabupaten Tanjung Jabung Barat
Authors: Jaya Indra , Sumarni Sumarni
Published: July 2020

Penelitian ini berjudul pengaruh Motivasi Kerja, Kemampuan dan Kreativitas terhdap kinerja UKM ( studi kasus usaha pengolahan kerupuk udang) di Kecamatan Tungkal Ilir kabupaten tanjung jabung Barat. Tujuan dilakukannya penelitian ini adalah untuk : (1)  Menganalisis pengaruh motivasi kerja terhadap kinerja usaha UKM pengolahan kerupuk udang di Kecamatan Tungkal Ilir Kabupaten tanjung jabung Barat. (2) (1)  Menganalisis pengaruh kemampuan terhadap kinerja usaha UKM pengolahan kerupuk udang di Kecamatan Tungkal Ilir Kabupaten tanjung jabung Barat (3) (1)  Menganalisis pengaruh kreativitaskerja terhadap kinerja usaha UKM pengolahan kerupuk udang di Kecamatan Tungkal Ilir Kabupaten tanjung jabung Barat (4) (1)  Menganalisis pengaruh motivasi kerja, kemaaampuan dan kreativitas  terhadap kinerja usaha UKM pengolahan kerupuk udang di Kecamatan Tungkal Ilir Kabupaten tanjung jabung Barat. Temuan penelitian ini menunjukkan bahwa, motivasi kerja, kemampuan dan kreativitas, baik msecara parsial maupun sevcara simultan berpengaruh positif dan signifikan terhadap kinerja UKM pengolahan kerupuk udang di Kecamatan Tungkal Ilir Kabupaten tanjung jabung Barat. Dan hal ini memberikan implikasi teoritik penting bagi pengembangan teori-teori  motivasi kerja, kemampuan dan kreativitas terhadap kinerja usaha UKM. Pesan menegerial penting dari temuan penelitian ini adalah bahwa kinerja usasha UKM khususnya pengussaha kerupuk udang akan dapat ditingkatkan melalui motivasi kerja yang tinggi, diikuti oleh kemampaun kerja serta kreativitas dari pengusaha itu sendiri.
Analisis Faktor-Faktor Yang Mempengaruhi Cost Stickiness Pada Perusahaan Manufaktur Yang Terdaftar Di Bursa Efek Indonesia Periode 2014-2018
Authors: Jazuli Muhammad Asrin , Maksum Azhar , Rini Endang Sulistya
Published: July 2020

Penelitian ini bertujuan untuk mengetahui dan menganalisis perilaku cost stickiness serta faktor-faktor yang mempengaruhinya seperti asset intensity, employee intensity, equity intensity, return on equity, free cash flow, leverage, dan size pada perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia periode 2014-2018. Penelitian ini merupakan penelitian kuantitatif dengan penelitian bersifat asosiatif kausal dan menggunakan data sekunder berupa laporan keuangan perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia periode 2014-2018. Populasi dalam penelitian ini adalah seluruh perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia periode 2014-2018 yang berjumlah 184 perusahaan. Teknik pengambilan sampel menggunakan teknik purposive sampling dengan berdasarkan kriteria-kriteria tertentu sehingga terdapat 120 perusahaan manufaktur yang dijadikan sebagai sampel penelitian. Data dalam penelitian ini diolah dengan menggunakan software SPSS versi 22. Hasil penelitian menunjukkan bahwa terdapat perilaku cost stickiness pada kategori biaya penjualan, administrasi, dan umum perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia periode 2014-2018. Selain itu, faktor asset intensity dan leverage berpengaruh positif dan signifikan terhadap cost stickiness. Employee intensity memiliki pengaruh signifikan negatif terhadap tingkat cost stickiness. Sedangkan faktor equity intensity, return on equity, free cash flow, dan size tidak berpengaruh terhadap cost stickiness.
Kaitan Antara Kondisi Keamanan Lingkungan terhadap Jumlah Industri Mikro dan Kecil pada Perdesaan di Indonesia
Authors: Prasetiyo Muhammad Dwi , Sukartini Ni Made
Published: July 2020

Sektor usaha di Indonesia pada saat ini masih didominasi oleh usaha atau industrimikro kecil. Pada Tahun 2016 jumlah usaha ini mencapai lebih dari 26 juta usaha atau setara dengan 98,68 persen dari total usaha non pertanian di Indonesia. Penelitian ini bertujuan untuk mengetahui apakah kondisi keamanan lingkungan menghambat proses industrialisasi pada wilayah perdesaan di Indonesia pada Tahun 2018.Data yang digunakan adalah data sekunder yang bersumber dari hasil pendataan potensi desa (Podes) Tahun 2018 oleh BPS RI. Metode yang digunakan dalam penelitian ini menggunakan regresi dummy variabel dengan menggunakan metode estimasi ordinary least square (OLS).Hasil yang diperoleh dari penelitian ini adalah tindak kejahatan seperti pencurian dan penipuan signifikan mempengaruhi sebagian besar industri mikro dan kecil yang ada di perdesaan. Namun hal yang menarik dari penelitian ini adalah ketika ada kejadian tindak kejahatan pencurian dan penipuan membuat jumlah industri mikro dan kecil menjadi lebih tinggi dibandingkan saat tidak ada aktivitas kedua tindak kejahatan tersebut. Hal ini menunjukkan rata-rata keberadaan industri mikro dan kecil di perdesaan Indonesia belum mempertimbangkan lokasi yang memiliki kecenderungan daerah dengan kerawanan sosial yang rendah seperti ditandai dengan minimnya atau rendahnya aktivitas tindak kejahatan di lokasi tersebut.
Interrelation between body weights of sire, dam and their lambs at early stage of growth
Authors: Caro-Petrovic Violeta , Petrovic Milan , Ruzic-Muslic Dragana , Maksimovic Nevena , Sycheva Irina , Cekic Bogdan , Cosic Ivan
Published: July 2020

Records of female lambs and their parents of the Mis sheep breed have used.
All animals are approximately have weaned at 90 days of age. Descriptive
statistics, paired sample test, paired differences, measures of association,
correlations and regression of body weights between female lambs and their
parents have done. A complementary least body weights at 30 days and weaning
between dams and lambs but utmost weight at 30 days, the lambs were higher
while at weaning, the dams had higher weight. It can observe that the
averages on body weights the rams were the highest, followed by lambs and
the lowest the dams? body weights. The coefficient of determination of R2
varies from low to high, indicating that the lamb's body weight has more
influenced by other factors that we have not considered. There were
significant correlations between lamb body weight at birth and sire/dam body
weight at birth. The results showed highly significant correlations of
lamb's body weight at 30 days with dams but with sires, positive and very
low. There had positive but no significant correlation between lamb body
weight at weaning and sire body weight at weaning. Lamb body weight at
weaning and dam body weight at weaning are highly correlated.
Change of antlers morpho-metric parameters and total trophy score in roe deer (Capreolus capreolus L.) in relation to age
Authors: Popovic Zoran , Davidovic Vesna , Bozickovic Ivana , Stojanovic Bojan , Ivanovic Bojan , Bojanic-Rasovic Mirjana
Published: July 2020

The aim of this study was to determine the change in the value of
morpho-metric parameters of antlers and the total trophy score in relation
to the age of roe deer (Capreolus capreolus L.). The study was conducted on
228 roe deer trophies from the "Barajevska reka" hunting ground in Serbia,
aged one to seven years. From the second to the fourth year, the growth of
antlers was the most intense, and the differences compared to one year old
animals were significant (P <0.001). The highest average length of the
branches was monitored in six years old animals (22.4 ? 2.05 cm), with
significant differences (P <0.001) compared to younger animals, except for
the three years old animals (P>0.05). From the second to the fifth year, a
gradual increase in antler weight (from 192.2 ? 30.41 g to 221.9 ? 61.86 g)
and antler volume (from 74 cm3 to 90 cm3) was observed, with the highest
values of antler weight (291.8 ? 58.43 g and 319.1 ? 98.89 g, respectively)
and antler volume (123.8 cm3 and 121.2 cm3) in six and seven year old
animals. Overall trophy scores increased from year one to year seven (42.6 ?
7.86 vs 97.4 ? 27.40), with differences in trophy scores for animals aged
six and seven years significantly greater than for animals aged one to five
years (P <0.001). The highest quality antlers have six and seven year olds,
at which time their hunting should be conducted.
Thermal performance evaluation of hot oils and nanofluids by simulation of an indirect heating plant
Authors: Ostigard Lis , Mattedi Silvana
Published: July 2020

This paper aims to analyze the thermal performance of four different heat transfer fluids in a hot oil system located in a paraffin hydrotreatment and fractionation plant of a petroleum refinery. The software Petro-SIM? (KBC- -Yokogawa) was employed to elaborate steady-state simulations intended to compare the heat transfer fluid currently used (eutectic of biphenyl and diphenyl oxide) and three fluids proposed as substitutes: paraffin oil (namely n-C13 +) produced in the same industrial unit, a nanofluid of eutectic of biphenyl and diphenyl oxide and copper at a 6% volume fraction, and a CuO/polydimethylsiloxane nanofluid at a 6% volume fraction. The results showed that n-C13 + was the only heat transfer fluid that could replace the eutectic diphenyl oxide/biphenyl in the system under analysis since it absorbed the heat duty of 13.79 Gcal/h, which exceeded the thermal energy of 10.57 Gcal/h absorbed by the heat transfer fluid currently used at the same operating parameters. The Cu/eutectic of biphenyl and diphenyl oxide and CuO/polydimethylsiloxane nanofluids presented lower heat duty than the energy needed for the operation of the hot oil system, which was 8.31 and 8.51 Gcal/h, respectively.
Pupillary response in air force and air defence pilots when exposed to Gz+ acceleration
Authors: Randjelovic Danijela , Sreckovic Suncica , Sarenac-Vulovic Tatjana , Petrovic Nenad
Published: July 2020

Background/Aim. In aviation, visual functions are important for the simultaneous monitoring the instrument panel and signs in the environment. From the very beginning of the development of aviation, visual function has been deemed particularly important. The effect of +Gz acceleration on the organ of vision is very significant for investigations in aviation medicine. Visual functions are the most important of all sensory functions where flight safety and quality of flight performance are concerned. High acceleration onset rates may cause changes in pupil diameter of a pilot with significant changes in visual function. However, it is important to maintain visual functions due to rapid pilot?s orientation in the space. The aim of this study was to establish whether there was any pupillary response in Air Force and Air Defence pilots or changes in pupil diameter when exposed to +Gz acceleration in the human centrifuge. ??thods. The study was conducted on 65 Air Force and Air Defence pilots aged from 28 to 45 years of age. The pilots were exposed to an acceleration of +5.5Gz to +7Gz. We examined the obtained differences in pupil diameter according to a rate of acceleration in the period of three consecutive days. R?sults. Changes in pupil diameter during the pilot?s exposure to different high values of acceleration in the course of three days, measured before, during and after the exposure, generated statistically significant results. No statistically significant differences in pupil diameter were noticed when the pilots were exposed to the same values of acceleration before the testing on the first, second or third day. During the test, pupil diameter was statistically significantly larger than before the test. Conclusion. Transient changes in pupil diameter occurred in pilots exposed to a +7Gz acceleration. Pilots were able to withstand exposure to a +5.5Gz acceleration, without any major changes in the pupil diameter. Physiological training of pilots in the human centrifuge mimicking conditions of real G acceleration, improves tolerance to acceleration, which is important for flight safety.
KEEFEKTIFAN MODEL PEMBELAJARAN SNOWBALL THROWING BERBANTU MEDIA PUZZLE TERHADAP HASIL BELAJAR
Authors: Setianto Jevri Nugroho , Rais Rahmat , Fajriyah Khusnul
Published: July 2020

Peneliti ini bertujuan untuk mengetahui adanya keefektifan untuk meningkatkan hasil belajar atau tidaknya model pembelajaran Snowball Throwing dengan media Puzzle. Penelitian ini merupakan penelitian pre-experimental jenis kuantitatif. Penelitian ini menggunakan one-group pretest-posttest design. Populasi dalam penelitian ini adalah seluruh peserta didik kelas IV SD Negeri Ketitangwetan 02 berjumlah 20 siswa tahun ajaran 2019/2020. Intrumen yang digunakan adalah wawancara, dokumentasi dan tes. Analisis Data menggunakan Teknis analisis data peneliti menggunakan uji normalitas dan (uji-t). Uji normalitas digunakan untuk mengetahui kelas tersebut berdistribusi normal atau tidak. Uji t-test digunakan untuk mengetahui perbedaan hasil belajar. Hasil penelitian yang dilakukan dapat disimpulkan bahwa model pembelajaran Hasil penelitian dapat disimpulkan bahwa model pemeblajaran Snowball Throwing dengan media Puzzle dapat meningkatkan hasil belajar siswa kelas IV tema 2 subtema 2 pembelajaran 1-3. Hal ini dapat dilihat Hal tersebut dilihat dari hasil perhitungan uji-t dengan taraf signifikan = 5% Dengan menggunakan uji-t satu pihak didapatkan nilai 1,68595. Dari perhitungan diatas diperoleh   sebesar 6,242283. Maka hasilnya > yaitu 6,242283 > 1,68595. Dengan demikian 𝐻0 ditolak dan 𝐻𝑎 diterima. Artinya model pembelajaran snowball throwing  dengan media puzzle efektif terhadap hasil belajar.
UPAYA MEMPERBAIKI MISKONSEPSI DAN HASIL BELAJAR SISWA KELAS XI-IPA1 SMAN 2 BAU-BAU MELALUI PENERAPAN MODEL PEMBELAJARAN ICI (INTERACTIVE CONCEPTUAL INSTRUCTION) BERBANTUAN LKS BERBASIS LINGKUNGAN
Authors: Salamah Ummi
Published: July 2020

An understanding of nature and the environment is one of the initial capital to meet future life, which all depend on the findings and breakthroughs in science and technology. This study aims to improve the misconceptions and physics learning outcomes of class XI-IPA students through the application of an environment-based worksheet based ICI learning. This type of research is Classroom Action Research. Implementation study consisted of two cycles of cycle one and cycle 2 with stages in each cycle of planning, action, observation, evaluation, and reflection. The research subjects were students of class XI-IPA Senior High School of  2 Bau-Bau with a total of 35 students. Research instruments and data collection techniques consisted of misconception tests, learning outcomes tests, psychomotor observation sheets, and affective observation sheets—data analysis technique using descriptive analysis of quantitative and qualitative consisting of completeness in classical analysis. The study showed that an increase in the learning outcomes of cycle one and cycle 2 in terms of cognitive, affective, and psychomotor. While on a review of misconceptions changes from cycle 1 to cycle 2. So it can be said that  ICI model can reduce student misconceptions and can improve student learning outcomes.
PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION UNTUK MENINGKATKAN PRESTASI BELAJAR PPKn
Authors: Kalih I Ketut
Published: July 2020

Penelitian ini bertujuan mendeskripsikan tentang model pembelajaran Problem Based Instruction (PBI) sebagai upaya untuk meningkatkan prestasi belajar PPKn siswa Kelas X MIPA.2 SMA Negeri 1 Mendoyo Semester 1 Tahun Pelajaran 2018/2019. Subjek penelitian ini adalah siswa kelas X MIPA.2 sebanyak 35 orang yang terdiri dari 17 orang laki-laki dan 18 orang perempuan. Dipilihnya siswa Kelas X MIPA.2 tersebut yaitu karena dari hasil pengamatan awal ditemukan adanya kelemahan prestasi belajar pada siswa tersebut dan peneliti adalah guru mata pelajaran di kelas tersebut yang merasa berkewajiban memperbaiki prestasi belajar siswa melalui perbaikan model pembelajaran. Penelitian tindakan ini dilaksanakan dalam 4(empat) tahap, yaitu: 1). Perencanaan Tindakan, 2). Pelaksanaan Tindakan, 3). Pengamatan/Observasi, dan 4) Refleksi. Data yang diamati selama proses tindakan adalah prestasi belajar siswa yang dicerminkan dari hasil tes dicapai oleh siswa. Setelah data terkumpul dianalisis dengan mencari rerata dan prosentase ketuntasan dengan mengacu pada indikator keberhasilan, dengan metode statistik deskriptif. Hasil yang diperoleh selama proses tindakan, yaitu: 1). Dengan penerapan model Problem Based Instruction dapat meningkatkan prestasi belajar siswa kelas X MIPA.2 SMA Negeri 1 Mendoyo Semester 1 Tahun Pelajaran 2018/2019 dengan rata-rata 75,49 pada Pra Siklus, menjadi 78,03 pada Siklus I, dan meningkat menjadi 82,86 pada Siklus II, dan 2).Dengan penerapan model Pembelajaran Problem Based Instruction dapat meningkatkan prestasi belajar siswa kelas X MIPA.2 SMA Negeri 1 Mendoyo Semester 1 Tahun Pelajaran 2018/2019 dengan ketuntasan 62,86% pada Pra Siklus, menjadi 82,86% pada Siklus I, dan meningkat menjadi 94,29% pada Siklus II. Jadi berdasarkan hasil tersebut dapat disimpulksn bahwa: ”Peningkatan prestasi belajar siswa mata pelajaran PPKn dapat dilakukan secara signifikan dengan penerapan model problem based instruction (PBI).