bluuebunny/crossref_metadata_2025 huggingface dataset:
Sistem Perekam Detak Jantung Berbasis Pulse Heart Rate Sensor pada Jari Tangan
Authors: RACHMAT HENDI HANDIAN , AMBARANSARI DIENAR RASMI
Published: October 2018

ABSTRAKPada studi ini dilakukan rancang bangun sistem perekam detak jantung portabel berbasis pulse heart rate sensor. Studi ini bertujuan untuk mengetahui keakuratan pulse heart rate sensor dalam mendeteksi detak jantung pada jari tangan, dimana tahap selanjutnya sistem ini akan digunakan untuk merekam detak jantung pasien seharian dalam kondisi beraktivitas. Sistem ini dirancang menggunakan modul pulse heart rate sensor yang dihubungkan dengan mikrokontroller Arduino Nano. Data detak jantung direkam pada modul SD Card. Hasil pengukuran sistem ini dibandingkan dengan hasil pengukuran alat Oxymeter. Pengujian dilakukan dengan mengukur detak jantung bagian jari tengah dengan alat Oxymeter dan bagian jari telunjuk dengan sistem ini. Pengujian dilakukan masing-masing satu kali pada 2 jari tangan kanan dan tangan kiri dari 30 orang naracoba dengan rentang usia 18-23 tahun. Hasil pengujian menunjukkan rata-rata error akurasi sistem ini adalah 2 bpm terhadap Oxymeter dengan selisih terbesar 5 bpm. Kata kunci: detak jantung, jari tangan, Oxymeter, SD Card, sensor pulse heartrate. ABSTRACTIn this study, we implemented a portable pulse heart rate sensor based heart beat recording system. The goal of this study is to evaluate an accuracy of the sensor for detecting the heart beat on both a right finger and a left finger in order to implement an ambulatory heart beat recording system. The pulse heart rate sensor was connected to an Arduino Nano contoller module to calculate the heart beat. The heart beat was then recorded in a SD Card module. The system’s results were compared to an oxymeter. Thirty healthy young adult volunteers were involved in this study by measuring the heart beat on a middle finger with Oxymeter and on an index finger with our system. The measurement was tested on both hands’s fingers. The results showed that an accuracy of the system is 2 bpm relative to the Oxymeter’s with the biggest difference of 5 bpm.Keywords: fingers, heart rate, Oxymeter, pulse heart rate sensor, SD Card
Perencanaan Sistem Proteksi Generator dari Putaran Balik di PLTMH Totabuan
Authors: ARFIANTO TEGUH , HARIYANTO NASRUN , SITOHANG DELFAN TONIUS
Published: October 2018

ABSTRAKPada penelitian ini penulis melakukan perhitungan, simulasi dengan aplikasi ETAP 12.6.0 kemudian membandingkan hasil simulasi dengan standar PLN. Pada setting relay daya balik penulis menerapkan standart IEEE C37.102-2006, daya balik generator dengan kapasitas 2 x 2,5 MW adalah 50000 watt dengan waktu tunda relay 10 detik. Sedangkan daya balik untuk generator kapasitas 4 x 0,7 MW adalah 14000 watt dengan waktu tunda relay 10 detik. Hasil yang didapat dari simulasi saat terjadi kenaikan tegangan 110% adalah 0,57 detik dan saat 130% adalah 0,105 detik. Sedangkan untuk setting relay tegangan saat terjadi turun tegangan 50% adalah 0,125 detik dan saat 80% adalah 1,25 detik. Hasil simulasi dengan standar PLN tidak jauh berbeda, waktu yang diterapkan PLN ketika naik tegangan 110% adalah 2 detik dan saat 130% adalah 0,1 detik kemudian untuk turun tegangan 50% adalah 0,1 detik dan saat 80% adalah 1 detik.Kata Kunci: Generator, Daya Balik, Proteksi, Setting, Relay ABSTRACTIn this study the authors perform calculations, simulations with software ETAP 12.6.0 and then compare the results of simulation with standard PLN. On setting power relay writer applying standart IEEE C37.102-2006, generator reverse power capacity 2 x 2.5 MW is 50000 watt with relay time delay 10 second. While reverse power for generator capacity 4 x 0,7 MW is 14000 watt with a 10 second delay time. The results obtained from simulation when there is a 110% increase voltage 0.57 seconds and when 130% is 0.105 seconds. As for the setting of voltage relay when there voltage drop of 50% is 0.125 seconds and when 80% is 1.25 seconds. The result of simulation with PLN standard is not much different, the time applied by PLN when the voltage rise of 110% adds 2 seconds and when 130% is 0.1 seconds later to drop the 50% voltage 0.1 second and 80% is 1 second.Keywords: Generator, Reverse Power, Proteksi, Setting, Relay
Kendali Logika Fuzzy pada Car Like Mobile Robot (CLMR) Penjejak Garis
Authors: FAHMIZAL FAHMIZAL , MURTI BUDI BAYU , PRATAMA DONNY BUDI , MAYUB AFRIZAL
Published: October 2018

ABSTRAKMakalah ini memaparkan perancangan sistem kendali logika fuzzy untuk mengatur kecepatan dan arah sudut steering pada car like mobile robot (CLMR) dengan menggunakan metode Ackermann steering. CLMR penjejak garis dirancang menggunakan 16 buah photodiode, dan terdapat 7 buah membership fuzzfikasi dari pembacaan error dan last error sehingga terbentuk 49 aturan. Untuk menguji perfoma kendali fuzzy pada sistem CLMR dalam mengikuti lintasan garis maka dilakukan pengujian dengan bentuk lintasan berupa garis lurus dan berbelok serta zig-zag dalam satu lintasan putar. Proses variasi nilai keanggotaan fuzzifikasi masukan dan defuzzifikasi keluaran dilakukan sebanyak lima kali. Dari hasil pengujian diperoleh bahwa kendali logika fuzzy yang diaplikasikan pada sistem mampu membuat pergerakan CLMR sukses mengikuti lintasan uji selama 9,38 detik lebih baik 0,53 detik dari kendali PID. Selanjutnya, hasil rancangan sistem CLMR ini merupakan sebuah prototipe self-driving car.Kata kunci: car like mobile robot, robot penjejak garis, fuzzy, self-driving car ABSTRACTThis paper describes the design of a fuzzy logic control system to adjust the speed and direction of the angle of the steering on the car like mobile robot (CLMR) using the Ackermann steering method. CLMR line tracking is  designed using 16 photodiode pieces, and there are 7 fuzzfication membership from reading error and last error so that 49 rules are formed. To test the fuzzy control performance on the CLMR system in following the line trajectory, it was tested with the form of a straight line and a turn and a zigzag in a rotary track. The process of varying input membership fuzzification values and output defuzzification is done five times. From the test results, it was found that the fuzzy logic control applied to the system was able to make CLMR movement successfully followed the test path for 9.38 seconds better than 0.53 seconds of PID control. Furthermore, the results of the CLMR system design are a prototype self-driving car.Keywords: car like mobile robot, line tracking robot, fuzzy, self-driving car
Antecedents and Adoption of E-Banking in Bank Performance: The Perspective of Private Bank Employees
Authors: Magboul Ibrahim , Abbad Muneer
Published: October 2018

Aim/Purpose: This paper identifies the antecedents that affect E-Banking (EB) adoption and investigates the relationship between the level of EB adoption and the performance of private banks.

Background: Rapid technological advancement has transformed the business environment dramatically. These advancements particularly the Internet has reshaped the way businesses operate. Over the last decade, the banking industry has become highly complex and competitive and operates in a highly volatile and unpredictable global economy. With the increasing demand for electronic services, banks are harnessing EB technology to improve their products and services.

Methodology: Quantitative research using Structural Equation Modelling (SEM) was carried out with a sample size of 211 by sending questionnaires to employees of six banks in Khartoum, Sudan. The study is based on different technology theories and models.

Contribution: The study provides insights into the employees’ perception of EB adoption in their banking transactions.

Findings: The results showed that four factors are significant in the adoption of EB in Sudan. However, training and user trust were insignificant in determining its adoption. Moreover, the level of adoption of EB significantly affected private bank performance.

Recommendations for Practitioners: Private banks in Sudan that are interested in EB might find these findings helpful in guiding their technology adoption and application initiatives.

Recommendation for Researchers: To validate the research model, cross data from different countries are encouraged to apply the model to capture the differences and similarities among them. In addition, a longitudinal research could be conducted to gather data for adoption process over a longer period rather than one point of time, to investigate antecedents and bank performance outcomes by the end of the study period. Other antecedents and outcomes could possibly be included to improve the power of the study model.

Impact on Society: This study provides a reference for banks with similar developing country backgrounds in adopting EB to enhance their performance. Moreover, knowledge of antecedents and outcomes of EB adoption could be positively reflected in service quality performance.

Future Research: This research is limited to the employees’ perspective, and future research could consider the perception of customers from a developing country towards EB adoption.
Grau de consciência ambiental e consumo ecológico dos estudantes de Ciências Biológicas e de Engenharia Florestal de uma IES em Patos-PB
Authors: Souza de Assis Adriele Mércia , Monteiro Mayara Santiago , Marques Ricardo Ribeiro Rocha
Published: October 2018

A consciência ambiental é um aspecto que leva as pessoas a terem uma predisposição ao consumo ecológico. Este último atrai a atenção de empresas que investem ou pretendem investir em produtos ou serviços “verdes”. Nessa perspectiva, o presente estudo buscou analisar o grau de consciência ambiental e de consumo ecológico dos acadêmicos dos cursos de Ciências Biológicas e de Engenharia Florestal de uma Instituição de Ensino Superior da Paraíba, no município de Patos-PB. Quanto à metodologia, utilizou-se do método quantitativo, do tipo descritivo e com levantamento de campo para obter os resultados. Desse modo, identificou-se que os estudantes possuem potenciais traços de consciência ambiental, visto que são capazes de reconhecer atitudes que podem ser adotadas para a preservação do meio ambiente. Além disso, os discentes dispõem de uma potencialidade para se tornarem consumidores ecologicamente corretos, tendo em vista a utilização de determinados critérios de relativos aspectos ambientais durante suas compras. Logo, é presumível que os conhecimentos acerca do meio ambiente que estes indivíduos obtêm em seus cursos, exerçam certa influência nas suas decisões de compra. Por fim, são apresentadas as considerações finais com as limitações da pesquisa e as sugestões para futuros trabalhos. Environmental awareness is an aspect that leads people to have a predisposition to ecological consumption which attracts the attention of companies that invest or intend to invest in "green" products or services. In this perspective, this study aimed to analyze the degree of environmental awareness and ecological consumption of the academics of the Biological Sciences and Forestry Engineering courses of a higher education institution of Paraíba, in the municipality of Patos -PB. Regarding the methodology, the descriptive- quantitative method was used through field research to obtain the results. Thus, it was identified that the students have potential traits of environmental awareness, since they are able to recognize attitudes that can be adopted in order to the preserve the environment. In addition, the students have the potential to become ecologically correct consumers, considering the use of certain criteria of relative environmental aspect during their purchases. Therefore, it is presumed that the knowledge about the environment that these individuals obtain in their courses influence their purchasing decisions. Finally, the final considerations with the limitations of the research and the suggestions for future work are presented.
Métodos de Gestão, segundo Peter Drucker
Authors: Montenegro Adauto De Vasconcelos
Published: October 2018

Trata-se de uma Resenha da obra intitulada "Peter Drucker: Melhores práticas: Como aplicar os métodos de gestão do maior consultor de todos os tempos para alavancar os resultados do seu negócio", de autoria de William A. Collen.
Standardisation in life-science research - Making the case for harmonization to improve communication and sharing of data amongst researchers
Authors: Hollmann Susanne , Regierer Babette , D'Elia Domenica , Gruden Kristina , Baebler Špela , Frohme Markus , Pfeil Juliane , Sezerman Ugur , Evelo Chris T , Ehrhart Friederike , Huppertz Berthold , Bongcam-Rudloff Erik , Trefois Christophe , Gruca Aleksandra , Duca Deborah A. , Colotti Gianni , Merino-Martinez Roxana , Ouzounis Christos , Hunewald Oliver , He Feng , Kremer Andreas
Published: October 2018

Modern, high-throughput methods for the analysis of genetic information, gene and metabolic products and their interactions offer new opportunities to gain comprehensive information on life processes. The data and knowledge generated open diverse application possibilities with enormous innovation potential. To unlock that potential skills in generating but also properly annotating the data for further data integration and analysis are needed. The data need to be made computer readable and interoperable to allow integration with existing knowledge leading to actionable biological insights. To achieve this, we need common standards and standard operating procedures as well as workflows that allow the combination of data across standards. Currently, there is a lack of experts who understand the principles and possess knowledge of the principles and relevant tools. This is a major barrier hindering the implementation of FAIR (findable, accessible, interoperable and reusable) data principles and the actual reusability of data. This is mainly due to insufficient and unequal education of the scientists and other stakeholders involved in producing and handling big data in life science that is inherently varied and complex in nature, and large in volume. Due to the interdisciplinary nature of life science research, education within this field faces numerous hurdles including institutional barriers, lack of local availability of all required expertise, as well as lack of appropriate teaching material and appropriate adaptation of curricula.
PENGEMBANGAN MEDIA FLASH MATERI IKATAN KIMIA SISWA KELAS X SMA NEGERI 1 PONTIANAK
Authors: Shelawaty Ananda Rizki , Hadiarti Dini , Fadhilah Raudhatul
Published: October 2018

ABSTRACTThis study aimed by the students’ low mastery score on Chemical Bond material at SMA Negeri 1 Pontianak. The mastery score gained by the students was only 44,3%. Based on the results of the questionnaires given to the students, they tend to study by using computer than power point program and video that have been used by the teachers. Therefore, this study aimed to develop teaching materials of Chemical Bond flash media for the students of grade X, SMA Negeri 1 Pontianak. A 3D (Define, Design, and Develop) development model suggested by Thiagarajan was carried out in this study. The data collection technique used were indirect communication, measurement, and observation. While the instruments were questionnaire sheets, pre-test and posttest questions, and observation sheet. The feasibility of the flash media developed was based on the aspects of validity, practicality, and effectiveness. The results obtained in this study were: (1) the average score of the flash media validity was 89.78% and was considered valid, (2) the practicality of the media based on the students’ response was 80.02% and was considered very strong and the teacher’s response was 75% and considered strong, and (3) the effectiveness of the media based on the learning outcomes showed significant results between before and after using the media (0.000 <0.05). As a result, flash media is regarded successful developed for the students of SMA Negeri 1 Pontianak and it is applicable to teach Chemical Bond material. Keywords: Chemical Bond, Flash media, media development
PENGEMBANGAN INSTRUMEN PENILAIAN TES DIAGNOSTIK PILIHAN GANDA DUA TINGKAT UNTUK MENGUKUR HASIL BELAJAR SISWA MATERI HIDROKARBON DI SMA 10 NEGERI PONTIANAK
Authors: Dewati Deska , Hadiarti Dini , Fadhilah Raudhatul
Published: October 2018

ABSTRACT In general, the used evaluation form to measure the students’ abilities is evaluation form in multiple choice and essay, but this evaluation still has weaknesses which are there are possibilities that the students do not know the correct answer and it has low realibility. From the weaknesses, the researcher wanted to produce two levels multiple choice diagnostic test assessment instrument in order to find outthe passing of the students’ outcomes with 21 students for the first trial and 118 students for the main trial. This research consisted of 7 steps which were (1) Research and the collection of information, (2) Planning, (3) The development of introductory product, (4) Preliminary trial, (5) The revision on main product, (6) Field trial, and (7) The revision of product. The research result showed that the two levels multiple choice diagnostic test was feasible to be used. The test result from 118 students using the two levels multiple choice diagnostic test showed the validity value of Vainstrument was 3.97, the effectiveness value was 85.57 %, and the practical value was 78.80%. The obtained test result, before and after using the two levels multiple choice diagnostic test showed that there was improvement on students’ learning outcomes which was 59.3 %. Therefore, the two levels multiple choice diagnostic test can measure and improve the students’ learning outcomes.Keywords: Development, Two Levels Multiple Choice, Two Levels Multiple Choice DiagnosticTest
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE SNOWBALL THROWING MENGGUNAKAN MEDIA FLASH PADA MATERI REAKSI REDOKS TERHADAP HASIL BELAJAR SISWA KELAS X SMK NEGERI 2 PONTIANAK
Authors: Istiqomah Istiqomah , Somantri Elin B , Kurniati Tuti
Published: October 2018

ABSTRACTThis study aimed by the students’ low learning outcomes class at the elemerith grade X of SMK Negeri 2 Pontianak on chemistry subject, especially in the matter of redox reactions. The aim of this study was to determine differences in learning outcomes class at the elemerith grade X of SMK Negeri 2 Pontianak in the matter redox reactions being taught by cooperative learning model snowball throwing type by flash media with the lecture method by flash media and to determine the influence of cooperative learning model snowball throwing using flash media on learning outcomes class at the elemerith grade X of SMK Negeri 2 Pontianak academic year 2014/2015. This research was Quasi Experimental Research Nonequivalent Control Group Design. The sampling system was simple random sampling technique. This study employed the students of grade X TITL as the samples of experiment group, and the students of grade X TSM as the samples of control group. The techniques of data collections used measurement and observation. Meanwhile the instruments employed that is the achievement test in the form of essay. The calculation results of the post test effect size of 0.83, which meant cooperative learning model snowball throwing type by flash media influence which was 29.67 % and considered high which indicated the positive effect. The results showed differences between the learning outcomes which were taught by using cooperative learning model snowball throwing type by flash media with the lecture method by flash media.Keywords: Learning Outcomes, Snowball Throwing, Redox Reactions, Flash Media
ANALISIS HUBUNGAN KEMAMPUAN BERPIKIR FORMAL DENGAN HASIL BELAJAR SISWA DALAM PEMBELAJARAN KIMIA DI KELAS X SMA NEGERI 9 PONTIANAK
Authors: Juliansyah Juliansyah , Kurniati Tuti , Fitriani Fitriani
Published: October 2018

ABSTRACTThe complex and abstract characteristics of Chemical materials requires students to have higher thinking skills to learn. Relationship of students' thinking skills and the ability to learn chemistry indicates the need of formal thinking skills in learning chemistry. This study aimed at describing the grade X students’ thinking skills and learning outcomes, and finding the correlation of grade X students’ learning outcomes and their formal thinking skills. The results of analysis revealed that as many as 7 students were able to correctly answer the burney test questions and achieved value range of 17-24. This value was included in the criteria of formal thinking. In addition, the preferred correct answers were the correlation a land combinatorial reasoning. A total of 10 students of grade XD, SMA Negeri 9 Pontianak obtained test results of chemistry achievement at ≥ 65, while 26 students scored completeness at ≤ 65. The data obtained showed the positive correlation between formal thinking skills and learning outcomes with correlation coefficient sof 0.514 or 51.4%. Hence, it can be concluded that there is a positive relationship of formal thinking skills and students’ learning outcomes in learning chemistry.Keywords : Students’ learning outcomes, The ability of Formal thinking, Learning Chemistry
PENGARUH METODE PEMECAHAN MASALAH BERBANTUAN BUKU SAKU TERHADAP HASIL BELAJAR PADA MATERI POKOK STOIKIOMETRI DI KELAS X SMA NEGERI 1 SUNGAI RAYA
Authors: Purwati Purwati , Qurbaniah Mahwar , Fadhilah Raudhatul
Published: October 2018

ABSTRACTThis research had the purpose to find out the difference between students’ learning outcomes which were taught using problem solving method assisted pocket book and lectures method assisted pocket book as well as to know how large the effect of problem solving method assisted pocket book on students’ learning outcomes in class X of SMA Negeri 1 Sungai Raya on stoichiometry material. This research was Quasi Experimental Nonequivalent Control Group design. The sampling system was purposive sampling technique which considered the score of final exam. Based on the sampling technique, X C was choosen as control class and XA was choosen as experimental class. The techniques of data collection used measurement, direct communication, and direct observation techniques. The result of data analysis showed the mean score of pretestposttest in experimental class (73.1) was higher compared to control class (43.6). According to the statistical analysis of U-Mann witney test on pretest score (α= 0,05), it was obtained the P value which was 0.766 which meant that there was no difference between the ability of learning outcomes in experimental and control class. The calculation using effect size showed ES=1.88 which meant problem solving method assisted pocket book affected students’ learning outcomes which was 46.99 %. Problem solving method had high effect on students’ learning outcomes because the students were motivated to find the information or solution to solve the problem.Keywords : Pocket Book, Learning Outcome, Problem Solving Method, Stoichiometry
ANALISIS KESULITAN BELAJAR KIMIA PADA MATERI LARUTAN PENYANGGA SISWA KELAS XI IPA 1 MAN 2 PONTIANAK
Authors: Purnama Rita Dwi , Mawardi Mawardi , Fadhilah Raudhatul
Published: October 2018

ABSTRACTThe low students’ learning outcomes and the failure in achieving the maximum mastery standard in Buffer Solutions material are caused by the students’ inability in understanding the questions. Students tend to merely pay attention on the Buffer Solutions material when the learning process takes place. However, they face confusion when they have to answer the questions of the task and the test. This study aimed at discovering the difficulties and the factors related to the students’ difficulties on Buffer Solutions material at XI IPA 1 class of MAN 2 Pontianak. Using case study descriptive method and qualitative approach, this study employed 29 students as the samples. The data collection technique used were indirect communication (questionnaires), direct communication (interview), and documentation techniques. While the data collection tools used were achievement test, questionnaires and interview. The data analysis results indicated that 68.3% students had difficulties on pH and pOH Buffer Solutions. On the other hand, the internal factorsthat affected the student learning difficulties were motivation aspect, that is, the students 'attention to the Buffer Solutions (54.31%), and talent aspect that influenced the student’s learning difficulties, that is, the students’ ability in recognizing numbers and figures respectively (48,6%) and talent aspect that influenced the student’s learning difficulties in Buffer Solutions materials (47%). In addition, the external factor that affected the student learning difficulties were family as the place to study (56%), and school as the facilitator (56,56%). Thereby, students are expected to further enhance the knowledge on the Buffer Solutions and have a discussion with both teachers and peers to cope with their learning difficulties.Keywords: Analysis, Students’ Learning Difficulties, Buffer Solutions
PEMANFAATAN KULIT PISANG KEPOK SEBAGAI ADSORBEN ZAT ORGANIK PADA AIR GAMBUT DENGAN VARIASI WAKTU PENGADUKAN
Authors: Qurbaniah Mahwar
Published: October 2018

ABSTRACTThe functional groups that act as adsorbent in kepok banana peel (Musa acuminate L.) can be identified are -OH, -COO, and -NH. Products in the form of a biological charcoal adsorbent from kepok banana peel can increase the economic value of a banana peel. This research aimed to study of using the kepok banana peel sour as adsorbent for reducing the content of organic matter in peat water. Parameter observed was the shaking time. Kepok banana peel that has been obtained from industrial waste bananas fried in Pontianak burned to charcoal. Activated charcoal that has been obtained with a solution of 0.1 M NaOH,washed with 0.1% HCl and distilled water and then dried to constant weight. Furthermore, biological charcoal from kepok banana peels used as adsorbent to reduce the content of organic matter in peat water which measured to decrease the color intensity of peat water (absorbance measurement) by using UV-VIS spectrophotometer in the wavelength of 254 nm. The results showed that decreasing in organic matter content in 70 mL of water peat obtained in 1 gram of adsorbent was 60 minutes. This results showed that the adsorbent of kepok banana peel can reduce water content of organic matter in peat water.Keywords: adsorbents, peat water, kepok banana peel (Musa acuminate L.)
IMPLEMENTASI METODE PRAKTIKUM BERBASIS LINGKUNGAN PADA MATERI REAKSI KIMIA SISWA KELAS X MADRASAH ALIYAH AL JIHAD NANGA TEPUAI KAPUAS HULU
Authors: Suryadi Linlin , Somantri Elin B , Kurniawan Rizmahardian Azhari
Published: October 2018

ABSTRACTThe students practicial work in Madrasah Aliyah Al Jihad does not have laboratories facilities and infrastructures still minimal. It be over come by using simple tools and simple materials within students evironment and ussually encontered in everyday. In this research the result of the study before and after implementation practicial work based learning will be analyzing. This reasearch was conducted on to students by using pre- experimental research and one group pretest-posttest design. The subject in this research were students of class X Madrasah Aliyah Al Jihad. This research was condacted three phases: Preparation imlementation and data analysis, the data were collected by using the test (Pretest and Posttest) observation, and interviews. The everage value pretest is 38.00 and 74,00 for posttest. The data pretest and postest were analyzed by using T test which assuming variance test was not homogeneous. T test result by using pretest and posttest is different in significant. The imlpementation method lab-based enveronment can be improve  student`s learning outcome. The students participate actively in teaching learning process.Keywords: Learning outcome, Lab-based environment method
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES TOURNAMENT (TGT) BERBANTUAN QUESTION BOX TERHADAP HASIL BELAJAR SISWA PADA MATERI KELARUTAN DAN HASIL KALI KELARUTAN KELAS XI IPA MAN 1 PONTIANAK
Authors: Sari Puspa , Kurniati Tuti , Fitriani Fitriani
Published: October 2018

ABSTRACTThe low level of students’ learning outcomes at MAN 1 Pontianak on solubility and the result of solubility multiply was caused by lack of students’ understanding on basic concept. This research had the purpose to find out the difference between the students’ learning outcomes which were taught by using Teams Games Tournament (TGT) type of Cooperative Learning Method Assisted Question Box and the lectures teaching method assisted Question Box as well as to know the effect of TGT type of Cooperative Learning Method Assisted Question Box. This research was Quasi Experimental Control Pretest Posttest Group Design. The sampling system was simple random sampling technique. The techniques of data collection used measurement technique, observation and direct communication (interview). The result of data analysis showed that the mean score of experimental class was 73.8 which was higher compared to the mean score of control class which was 62.97. The result of statistical analysis using U-Mann whitney test with α 5% obtained 0.00 value which was smaller than α value (0.00 <0.05). It meant that there was difference between the learning outcomes in experimental and control class. The calculation result using effect size showed the value of ES 0.91 which was included in high category. It could be concluded that TGT type of Cooperative Learning Method assisted Quesion Box gave high effect on the improvement ofstudents’ learning outcomes which was 31.86 %. Keywords: Learning Outcomes, Solubility and The Result of Solubility Multiply, TGT, QuestionBox
DESKRIPSI KEMAMPUAN MATEMATIKA DAN KORELASINYA DENGAN HASIL BELAJAR SISWA PADA MATA PELAJARAN KIMIA KELAS X MIPA SMA NEGERI 4 PONTIANAK
Authors: Kurniawati Eka , Kurniati Tuti , Kurniawan Rizmahardian Azhari
Published: October 2018

ABSTRACT Learning chemistry is a combination of theories with calculation that require good mathematical abillity in solving problems. This research was investigate and examined the student’s mathematic skill and correlation of the results class X MIPA SMA Negeri 4 Pontianak. This research was a correlation study. The selected samples consisted of 69 students in the class X MIPA 3 and MIPA 4 used Random Sampling technique. The data ware obtained using mathematical skill tests, documentation of the value of the results of class X student second semester of 2015/2016 and interview. This research was indicates that students with high math skills, students achievment chemical is no longer influenced by mathematical abilities. Data were analyzed with a nonparametric test (Spearman Rank test) showed there is no significant correlation between the skill of mathematics to chemistry student learning achievment at 0.236 and correlation coefficient of 0.145 including very low category. The skill of Mathematics class X SMAN 4 Pontianak totaling 69 students were good to excellent category the percentage of students 53.6%, 40.5% good category, the category was sufficient 4.5%, 1.4% less category.Keywords: Corellation, Mathmatics skill, Student’s learning achievement chemistry
EFEKTIVITAS METODE PEMBELAJARAN PROBLEM POSING BERSETTING ADVANCE ORGANIZER PADA MATERI REAKSI REDOKS TERHADAP HASIL BELAJAR SISWA KELAS X SMA NEGERI 3 PONTIANAK
Authors: Triani Ragil , Wibowo Muhamad Agus , Fadhilah Raudhatul
Published: October 2018

ABSTRAK This research had the purpose to find out the difference between students’ learning outcomes which were taught using learning problem posing method set in advance organizer and lecture method as well as to know how large the effect problem posing set in advance organizer on students’ learning outcomes in class X of SMA Negeri 3 Pontianak on redox reactions. This research was Quasi Experimental Nonequivalent Control Group design. The sampling system was purposive sampling, based on the sampling technique, X F was choosen as control class and X I was choosen as experimental class. The technique of data collection used measurement, direct communication, and direct observation techniques. The result of data analysis showed the mean score of pretest-posttest in experimental class (88,37) was higher compared to control class (69,6). According to the statistical analysis of U-Mann witney test on posttest score (α= 0,05), it was obtained the Pvalue which was 0,000 which mean that there was difference between the ability of learning outcomes in experimental and control class. The calculation using effect size showed ES=0,72 which meant problems posing set in advance organizer effected students’ learning outcomes which was 26,42%. Learning problem posing method set in advance organizer had medium effect on students’ learning outcomes.Keywords: advance organizer, learning outcome, problem posing, redox reactions
EFEKTIVITAS MEDIA MIND MAP BERBASIS METODE LATIHAN BERJENJANG TERHADAP HASIL DAN RETENSI BELAJAR SISWA PADA MATERI KONSEP MOL DI KELAS X SMA NEGERI 8 PONTIANAK
Authors: Permatasari Tesa Puteri , Hadiarti Dini , Fadhilah Raudhatul
Published: October 2018

ABSTRACTThe results and retention of student learning is still low in learning the concept of mole due to the difficulties of students to understand the concept and the lack of ability to resolve the matter of calculation. This study aimed to determine the differences in the results and retention of learning between the students who were taught with and without using mind-map media based on tier training method in the material of mole concept, knowing the great effectiveness of mind-map media based tier training method toward the results and retention of students in the material of mole concept at X grade students of SMAN 8 Pontianak. This research used Quasi Experimental Research with control group design. This research used purposive sampling with X MIA 4 as the experimental class and X MIA 3 as the control class. The techniques of collecting data used measurement techniques, observation and interviews, while the data collection tools used the test results and retention of learning, observation sheet and questionnaire. Mann-Whitney U test as the data analysis showed that there were some differences in learning while the t-test showed that there were differences in retention of learning. The results of the data showed that there were differences in learning outcomes and retention between the students who were taught with and without mindmap media based on tiered training method. Learning by using mind-map media gave effectiveness to the result of students learning outcomes which 24,86% categorized as medium category, the retention of student learning for 8 days was 28,52% categorized as medium category.Keywords: learning outcomes, tier training method, mind-map, retention
ANALISIS KESULITAN BELAJAR SISWA PADA MATA PELAJARAN KIMIA KELAS X DI SMA NEGERI 1 SUNGAI AMBAWANG
Authors: Yakina Yakina , Kurniati Tuti , Fadhilah Raudhatul
Published: October 2018

ABSTRACTThis study aimed at discovering the students’ in chemistry class at grade X of SMA Negeri 1Sungai Ambawang. A qualitative descriptive method was employed in this study. As many as62 students participated as the subjects. Two techniques were used in this study. They weremeasurement and indirect communication techniques. The indirect technique used 30 testquestions and 30 items of questionnaire. The result of analysis indicated that the students who had problems in understanding the terms were 48,99 %, the students who had problem in understanding the concept were 41,32%, and the students who had problems in calculating were 70,97%. The results of the questionnaire showed that the internal factors of motivation and interest were 59,25%. This is considered as the influential factor in the students’ difficulties. While the external factor, with the average percentage of 85,4% deal with the students’ difficulties were family, facilities and infrastructures, family condition, school, teachers, learning facilities, school building, mass media, and neighborhood. This is considered as the factor that didn’t influent the students’,difficulties in chemistry class.Keywords: Analysis, learning difficulties, chemistry learning
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE TAI (TEAM ASISSTED INDIVIDUALIZATION) BERBANTUAN VIDEO TERHADAP HASIL BELAJAR SISWA PADA SUB MATERI KONFIGURASI ELEKTRON KELAS X SMA NEGERI 5 PONTIANAK
Authors: Yumna Yumna , Cawang Cawang , Hadiarti Dini
Published: October 2018

ABSTRACTThe proces of chemistry learning in SMAN 5 Pontianakstill used lectures method which was not allowed the students to be active in learning chemistry. Therefore this research aimed toinvestigates the difference of students. Learning achievement and the effect size of the used of cooperative learning type TAI with video to help students learn the electron configuration material. The method of this research was quasi experimental non equivalent control group design. The sample was chosen using saturated sampling. The technique of data collecting was essay test with validation value 1. The test showed that the reliability coefficient was 0,057 which scored as moderate and worth to be used as research instrument. The hypothesis testing showed that Zvalue = 2,824 which means that the alternative hypothesis Ha was accepted. The effect size results was 21,57%. Bases in the results above the used of cooperative learning type TAI with video was effective to increase students learning achievement of electron configuration material.Keywords: Outcomes Learning, Team Assisted Individualization (TAI) Video, ElectronConfiguration.
PENGARUH PENDEKATAN MODIFICATION OF RECIPROCAL TEACHING PADA MATERI REDOKS TERHADAP AKTIVITAS DAN HASIL BELAJAR SISWA KELAS X SMA KOPERASI PONTIANAK
Authors: Kusuma Retno Anjar , Kurniati Tuti , Kurniawan Rizmahardian Azhari
Published: October 2018

The background of this research was the lack of students’ learning activities in the classroom and the low of student learning outcomes in the oxidation reduction material. This research aimed to determine whether there are any differences in the activities and learning outcomes of students who were taught using modification of reciprocal teaching approach and students who were taught using the expository approach and how much the influence of modification of reciprocal teaching approach to the activities and student learning outcomes. This research used experimental method with nonequivalent control group design. Samples were selected using saturation sampling technique. Data collection techniques used were measurement, observation and direct communication techniques. Data collection tools used were learning result test, observation sheet and interview guide. Based on the results of statistical analysis using SPSS 22.0, it can be concluded that there were differences in activity and student learning outcomes students who were taught using modification of reciprocal teaching approach and expository approach. The value of effect size showed that the effect of 92.07% approach to student learning activities and 99.20% of student learning outcomes. So it can be concluded that the modification of reciprocal teaching approach can be used to improve student activity and learning outcomes.Keywords: Learning activities, Learning outcomes, Modification of Reciprocal Teaching, Redox
PENGEMBANGAN ALAT EVALUASI BERBASIS WONDERSHARE QUIZ CREATOR PADA MATERI KOLOID KELAS XI DI SMA KOPERASI PONTIANAK
Authors: Iqbal Wan Muhammad Gustian , Fadhilah Raudhatul , Hadiarti Dini
Published: October 2018

Evaluation tools used in schools were still classified as conventional so that they had weaknesses, including the old assessment process and during the evaluation activities were less effective. Therefore, it needed an interactive evaluation tool and habituation for students in Computer-Based National Exam. The purpose of this research was to produce evaluation tool based on wondershare quiz creator for class XI on material about colloid in SMA Koperasi Pontianak. This development research used the Borg & Gall model. The research instruments used were validation sheet, response questionnaire, and test of learning result. The results of the validity of the material and media experts showed the percentage of each valuation of 83.98% and 90.69%. Practical results in initial and main field trials showed the percentage of each valuation of 79.07% and 86.24%. Results of effectiveness in initial and main field trials showed the percentage of each valuation of 83.3% and 85%. Item discrimination power of the initial and main field tests was not found to be a negative category, so no items were discarded, while for the difficulty level of the items on the initial and main field trials was only easy and medium category. Thus evaluation tool based on developed wondershare quiz creator can be declared eligible for using and has a variation of discrimination test items and level of difficulty of test items in the evaluation.Keywords: Evaluation Tool, Colloid Material, Wondershare Quiz Creator
HUBUNGAN ANTARA AKTIVITAS BELAJAR SISWA DAN HASIL BELAJAR PADA MATA PELAJARAN KIMIA KELAS X SMA NEGERI 5 PONTIANAK
Authors: Nuraini Nuraini , Fitriani Fitriani , Fadhilah Raudhatul
Published: October 2018

Learning activity was a student’s activeness in learning process to achieve outcome and aim of learning which had been determined. This research aimed to describe the degree of student’s learning activity, its outcome and the correlation between them. Collecting data used purposive sampling technique which used 36 students of class XB as a sample. The data of student’s learning activity was analyzed by using observation checklist. The observation result showed that the mean of student’s learning activity was 51,76 % with the category of active enough. The result of second term examination 2016/2017 showed that the mean of student’s score was 40,42 as less good category. The correlation between students’ learning activity and its outcome was analyzed by the correlation of product moment formula. The result of analyzing data showed that there was positive correlation between students’ learning activity and outcome in chemistry X class at SMA Negeri 5 Pontianak with correlation coefficient 0,67 as high category. The contribution of students’ learning activity and outcome was obtained coefficient of determination (r2) equal to 0,451. Thus, it could be concluded that there was a influence and positive relationship with the strong category between student learning activities and learning outcomes in chemistry class X at SMA Negeri 5 Pontianak.Keywords : Students’ learning activity, Students’ learning outcome, Chemistry
EFEKTIVITAS MODEL PEMBELAJARAN INKUIRI TERBIMBING PADA SUB MATERI REAKSI PENGENDAPAN DI KELAS XI IPA SMA MUHAMMADIYAH 1 PONTIANAK
Authors: Gustiah Gustiah , Kurniasih Dedeh , Fitriani Fitriani
Published: October 2018

Student learning outcomes were influenced by learning model which applied by teacher. One of the learning model required active student involvement in the learning process was the guided inquiry approach. The guided inquiry learning model emphasized on the discovery and mastery of the concept through the experimental process. This research aimed to identify between the differences of student’s learning outcomes by using guided inquiry learning model and using direct learning model on the sub-material of deposition reaction and the influence of guided inquiry learning model on students’ learning outcomes. This research used quasi experimental design and this purposive sampling technique to determine the sample. The sample of research was the students of grade XI IPA SMA Muhammadiyah 1 Pontianak. Data collection used a test and observation method. Data analysis used SPSS 17.0 for Windows. Based on the result, there were differences between learning outcomes using guided inquiry learning model and direct learning model. This research used Effect Size (ES) with ES = 2,44 as high category with 49,27%, mean guided inquiry learning model gave high effectiveness to students’ learning outcomes. Based on the research results, the guided inquiry learning model was effectively applied in SMA Muhammadiyah 1 Pontianak.Keywords: Learning outcomes, Guided inquiry, Deposition reaction
PENGEMBANGAN LEMBAR KERJA SISWA (LKS) PRAKTIKUM BERBASIS INKUIRI TERBIMBING PADA MATERI LARUTAN PENYANGGA DI SMA NEGERI 4 SUNGAI RAYA
Authors: Utari Wiji Tri , Fadhilah Raudhatul , Fitriani Fitriani
Published: October 2018

This research aimed to develop student worksheet for experiment based on guided inquiry in buffer solution at SMA Negeri 4 Sungai Raya which are valid, practical, and effective. The development of student worksheet in this research used Borg & Gall model. The results of this research showed that : (1) This student worksheet was stated as a valid result with an average score 1,00 which classified very high criteria. (2) This student worksheet was stated as a practical result with the percentage of preliminary field testing was 83,71% and 85,65% in main field testing which classified very high criteria. (3) This student worksheet was stated as an effective result with the classical completeness percentage was 76,47%. Based on the results, it can be concluded that the worksheet for experiment based on guided inquiry can be used in learning process.Keywords: Guided Inquiry, Buffer solution, Student worksheet for experiment.
PENGEMBANGAN PENUNTUN PRAKTIKUM KOLOID BERBASIS INKUIRI TERBIMBING PADA SISWA DI KELAS XI IPA SMA NEGERI 1 SUNGAI RAYA
Authors: Pratiwi Tika , Kurniasih Dedeh , Kurniawan Rizmahardian Azhari
Published: October 2018

Colloid is chemistry material which can be teached by experiment method. However, teacher’s practical guide didn’t match with the students characteristics and laboratory equipment in SMA Negeri 1 Sungai Raya. Therefore, this research aimed to develope the colloid practical guide based on guide inquiry. This research method was used Borg and Gall’s development model. Sampling technique used in this research was purposive sampling technique. Samples are students at eleventh grade in IPA 1 and IPA 2 SMA Negeri 1 Sungai Raya. The data was collected by using questionnaires and posttest sheet. The results of the research showed that the colloid practical guide are valid, practice, and effective. Validity test consists of three aspects (content, media, and language) were obtained coefficient validity with the average 1.00 or can be categorized "very valid". The practicality test used questionnaires for teacher and students which obtained the average percentage is 91.6% or can be categorized "very practice". Meanwhile, the effectiveness test obtained the average of posttest is 94, with the completeness classical is 100% or can be categorized "very effective". Based on the results, the colloid practical guide based on guide inquiry can be used as learning materials for students at eleventh grade in the second semester of IPA SMA Negeri 1 Sungai Raya.Keywords: Based on Guide Inquiry, Colloid, Practical Guide, Research and Development