28 research outputs found

    Development of Liveworksheet Assisted Teaching Materials for Students' Mathematical Problem-Solving Ability

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    Problem-solving ability is one of the hard skills that students need to solve everyday math problems. The learning model is felt to be in line with the ability to solve mathematical problems, namely the problem-based learning model because learning can be oriented to the ability to solve various problems, especially those related to the application of learning materials in everyday life. This study aims to develop teaching materials in the form of student worksheets with a problem-based learning model assisted by Liveworksheet on students' mathematical problem-solving abilities. This study used the development research method in two stages, namely preliminary design and formative evaluation design which was conducted on 50 junior high school students. Data collection techniques used are content validity by expert judgement and test. The instruments are expert assessment sheet and question sheet after content validity being conducted. Data analysis is done by finding the average of expert validation and learning achievement score. It is continued by comparing the score of validity and effectivity criteria. The results show that the student worksheets assisted by Liveworksheets and the developed mathematical problem-solving abilities are categorized as very valid and effective

    ANALISIS DAN PERANCANGAN KUALITAS LAYANAN ROUTER MIKROTIK PADA LOCAL AREA NETWORK ( LAN ) KAMPUS UNIGA JATI

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    Penelitian ini mengenai manajemen jaringan komputer dengan menggunakan salah satu router OS yang ada yaitu MikroTik Router. Adapun tujuan penelitian adalah untuk mengetahui kualitas sistem layanan router mikrotik di kampus UNIGA yang memberikan potret yang sebenarnya pada waktu sekarang. Metode analisis yang digunakan dalam penelitian ini adalah metode eksperimen yaitu suatu tindakan eksperimen yang dilakukan untuk mengidentifikasi masalah dari objek yang akan diteliti dan menguji masalah tersebut untuk mengetahui apakah masalah tersebut mempengaruhi objek yang akan di teliti. Hasilnya Kualitas layanan router mikrotik pada LAN di kampus UNIGA dipengaruhi oleh parameter kualitas layanan seperti bandwidth, delay dan paket loss serta cuaca yang buruk. Kata Kunci : Aplikasi Pelayanan Pengaduan, Sistem Informasi, Web, Smartphone, Access Point, Wif

    SISTEM TELEMETRI PADA GROUND CONTROL STATION (GCS) MUATAN BALON ATMOSFER (PAYLOAD) MENGGUNAKAN DELPHI 7

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    Sistem telemetri adalah proses pengukuran parameter suatu objek (benda, ruang dan kondisi alam), yang hasil pengukurannya dikirimkan ke tempat lain melalui proses pengiriman data baik dengan menggunakan kabel maupun tanpa kabel. Pembahasan penelitian ini membahas mengenai perancangan dan realisasi sistem telemetri menggunakan aplikasi Delphi 7 yang digunakan untuk menampilkan sebuah parameter data dari alat ukur muatan balon atmosfer yang dikerjakan oleh peneliti lain. Pengiriman informasi dari payload ke komputer dengan menggunakan modul Radio Frekuensi 433 MHz yang bekerja sebagai pengirim dan modul Radio Frekuensi 433 MHz sebagai penerima yang terkoneksi satu sama lain yang bertujuan agar data dari payload dapat diterima, diproses dan dapat ditampilkan serta data dapat tersimpan berdasarkan data masuk pada interface dalam aplikasi yang sudah dirancang. Pengujian aplikasi yang menerima, memproses dan menampilkan data numerik dan grafik, data numerik yang sudah ditampilkan dapat tersimpan dalam format *txt. Hasil pengujian terhadap interface yang sudah dirancang dengan skenario komunikasi serial 9600 8N1 dalam artian 9600 untuk buad rate, 8-bit data, none parity serta 1-bit stop. Parameter yang ditampilkan diantaranya ialah suhu udara, tekanan udara, kelembaban udara, ketinggian, garis melintang dan garis membujur. Riwayat data dapat dilihat pada aplikasi windows yaitu notepad atau sejenisnya yang dapat membaca format *txt. Kata Kunci : Telemetri, radio frekuensi 433 MHz, Delphi 7

    CATU DAYA ALTERNATIF MENGGUNAKAN SOLAR CELL

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    Pada saat ini penggunaan lampu di Indonesia masih menggunakan teganggan AC yang berasal dari PLN. Dilain pihak, PLN sebagai penyedia sumber energi listrik di Indonesia masih banyak mengalami kesulitan dalam menyediakan listrik baru karena beberapa hal diantaranya pembangkit – pembangkit yang kekurangan bahan bakar sehingga menyebabkan sering adanya pemadaman bergilir dan untuk pemasangan lampu jalan raya masih kurang diperhatikan. Pemanfaatan energi matahari merupakan satu diantara sumber energi yang dapat dimanfaatkan untuk penerangan lampu jalan raya yang menggunakan lampu LED . Dengan aplikasi yang lebih spesifiknya lampu jalan raya menggunakan lampu LED dengan tenaga surya bisa digunakan dimana saja. Dari solar cell energi listrik disimpan dalam aki dengan cara melakukan pengecasan melalui baterai charge dan output aki digunakan untuk sumber tegangan dari aki tersebut, yang nantinya akan digunakan sebagai sumber dari lampu LED. LDR sebagai sensor redup dan terang serta relay yang digunakan untuk sakelar on / off lampu. Kata Kunci : Battery, Battery Charger, Lampu LED, Sensor Cahaya (LDR)

    The Effect of Inflation Rate, Exchange Rate, The Certificate of Bank Indonesia (SBI) Interest Rate and Sharia Stock Trading Volume on Sharia Stock Performance in Companies Listed on the Indonesian Sharia Stock Index (ISSI)

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    This study aims to determine and analyze the effect of the inflation rate, exchange rate, SBI interest rate and Sharia stock trading volume on the performance of Sharia stocks in companies listed on the Indonesian Sharia Stock Index. In this study, a research model was created using Sharia stock performance as the dependent variable. While the independent variables are the inflation rate, exchange rate, certificate of Bank Indonesia (SBI) interest rate and Sharia stock trading volume. The research method used is quantitative research method with multiple regression models using panel data. The research object employs Sharia stocks from companies that are in the Indonesian Sharia Stock Index (ISSI), namely Sharia stocks that are listed on the stock exchange, active, and meet the requirements of the Capital Market in Indonesia during the period January 2014 to December 2018. The object of this research includes all 392 companies using purposive sampling technique. Further, the samples used are 278 companies that meet the requirements. Based on the results, it shows that the inflation rate has no effect on the performance of Sharia stocks. Next, the exchange rate and the SBI interest rate have a significant negative effect on the performance of Sharia stocks, while the trading volume of Sharia stocks has no effect on the performance of Sharia stocks

    Identifikasi Jenis-jenis Rotan pada Kawasan Arboretum Universitas Riau

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    Rattan is one of timber forest products that was commercial and high value. Arboretum area was located in University of Riau, has a collection of rattan. However, the data information on the types of rattan was contained in the arboretum area does not exist, it is necessary to do this research. The purpose of this research is to determine the types of rattan found in the Arboretum Area in University of Riau and was knowing rattan species diversity found in the arboretum Area in University of Riau. This research have been used descriptive data analysis or describe data obtained directly in the field. The results has been showed that the types of rattan that are in arboretum Area in University of Riau is Rattanudang (KorthalsiaechinometraBeccari), Rattan umbut (DaemonoropskorthalsiiBlume), Rattan manau(CalamusmananMiquel), Rattan manautikus (Calamustumidus Furtado), Rattan bubuai(Plectocomiaelongata Martius ex Blume) and Rattan rukong(Daemonoropssabut Becc). The results was showing the value of diversity index rattan species in the arboretum area University of Riau is low with the value H '1.57

    WEBINAR TRAINING OF EARLY DETECTION OF CONGENITAL HEART DISEASE FOLLOWED BY ECHOCARDIOGRAPHY AND PULSE OXIMETRY SCREENING IN LUMAJANG, EAST JAVA, INDONESIA

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    Congenital heart disease (CHD) affects about 0.8% to 1.2% with the mortality rate being 81 cases per 100,000 live births. Generally, CHD is a structural abnormality of the heart and (or) large blood vessels that appear at birth. The purpose of this activity is to conduct webinar training on early detection of congenital heart disease followed by ecocardiography and oximetry pulse screening in lumajang east Java Indonesia the novelty in this service activity because it provides training on early detection of heart disease. The training method was carried out through webinars with health worker participants in Lumajang. The material provided includes early detection methods, diagnosis and therapy, as well as simulations of CHD cases. Pre and Post-test are used to evaluate the level of knowledge. A visit to the echocardiography and pulse oximetry examination by a pediatric cardiologist was carried out two weeks later in Lumajang. As a result of the activity, there were 140 participants who took part in the webinar training. The average score of the pre-test was 11.13/15 with only 5 participants getting a perfect score. At the end of the webinar, the average post-test score was 14.34/15 with 115 participants who finally got a perfect score. A total of 28 children were examined by echocardiography examination. 20 children were diagnosed with cyanotic CHD, 6 children were diagnosed with cyanotic CHD, and 2 were normal children. On pulse oximetry examination, all babies had an oxygen saturation of 95% or more and there was no difference of more than 3% between the pre and post duct sites. Conclusion Webinar training can increase health workers' knowledge about early detection of CHD.Keywords : Congenital Heart Disease; Filtering; Echocardiography; Pulse oximetry

    SISTEM KEAMANAN KENDARAAN RODA EMPAT BERBASIS MIKROKONTROLER

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    Salah satu ketakutan dalam masyarakat yang mempunyai kendaraan khususnya mobil adalah kasus criminal seperti pencurian mobil, asesoris mobil bahkan spion mobil. Untuk mengurangi kasus criminal terjadi saat mobil terpakir. Maka ditawarkan sistem pengamanan kendaraan diamankan tetap ditempat secara interaktif. Sistem keamanan mobil ini bekerja otomatis manakala terdeteksi adanya bahaya atau gangguan di sekitar mobil, karena terdapat sensor suara untuk mendeteksi gangguan di sekitar mobil ,sensor ultrasonic yang akan di tempatkan disudut mobil sensor ini bekerja manakala ada perubahan kondisi di dalam mobil dan sensor inframerah yang ditempatkan di bawah mobil yang fungsinya untuk mengetahui perubahan posisi, sensor-sensor ini akan diolah oleh mikrokontroler At Mega 16. Kata kunci : sensor ultrasonic, At Mega 1

    Perancangan Sistem Pemutus Daya Listrik Otomatis Pada Laboratorium Komputer Berbasis Arduino

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    Kebutuhan masyarakat akan teknologi terutama alat elektronika semakin meningkat. Sedangkan hampir semua sistem elektronik saat ini menggunakan pengolahan sinyal dan transmisi digital. Dalam elektronika digital digunakan sistem bit yang hanya mengenal logika 0 dan 1. Logika nol biasanya diwakili oleh besar tegangan 0V-0,7V sedangkan logika 1 biasanya diwakili oleh besar tegangan 5V. Dari permasalahan di atas diperlukan suatu alat yang bisa memastikan kesesuaian dari nilai tegangan logic sebagai solusi dalam perancangan suatu alat elektronika digital. Maka dalam proyek akhir ini akan dirancang alat yang bisa memastikan nilai logika suatu tegangan dengan tahapan perancangan sebagai berikut : mengumpulkan referensi, melakukan perancangan dan survei kebutuhan, melakukan pembuatan alat dan kemudian dilakukan pengujian dan analisa untuk mendapatkan suatu kesimpulan. Kata Kunci : sistem elektronik , Pengolahan sinyal, transmisi digital

    Pengaruh Beban Kerja, Kepuasan Kerja, Dan Work Life Balance Terhadap Kinerja Karyawan Pt. Multimestika Daya Semesta

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    The purpose of this study was conducted in order to see the strong influence of workload, job satisfaction, and work life balance to employee performance. A hundred respondents were sampled and used simple random sampling techniques, as well as multiple linear analysis. Data was taken from interviews and filling out questionnaires. The calculation of H1 (Workload variable) is tcount (3.697) > ttable (1.985) and sig (0.000) < (0.05), has a positive and significant influence. The calculation of H2 (Job satisfaction variable) is tcount (3.704) > ttable (1.985) and sig (0.000) < (0.05), has a positive and significant effect. Calculation of H3 (Worklife balance variable) is tcount (3.697) > ttable (1.985) and sig (0.000) < (0.05), has a positive and significant effect. calculation of H4 (Workload variable, job satisfaction, work life balance) is Fhitung (210.395) > Ftabel (3.09) and sig (0.000) < (0.05), together have a positive and significant effect. Keywords: Workload, Job Satisfaction, Work Life Balance, Employee Performanc
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