44 research outputs found
Pengolahan Air Limbah Industri Penyamakan Kulit Menggunakan Abu Terbang Bagas Secara Batch
No full textThe objective of this research was to evaluate the adsorption ability of chemically activated bagasse fly ash using H O or H SO to remove COD from tannery wastewater and to obtain 2 adsorption isotherm model in batch system. Two stages have been carried out, namely the activation experiment and the adsorption isotherm experiment. In the activation experiment, effect of H O dan H SO (3% and 7,5% w/w) were studied. The best result of the variation was used in the next experiment. In the adsorption isotherm experiment, variation of the initial concentrations of COD from 52,53 to 1665,79 mg/L and mass of bagasse fly ash from 0,1 to 0,4 g were used. Equilibrium data was used to evaluate the parameters in the Langmuir, Freundlich, and Temkin equations. The best model was evaluated using determination coefficients. The results showed that bagas fly ash had better ability to reduce the COD when it was not activated with H O nor H SO (3% and 7,5%). Freundlich model was best to describe COD removal using bagasse fly ash in batch system. Freundlich equation constants K and n were F 0,4360 (mg/g)/(L/mg)1/n and 1,2969 respectively and the determination coefficient obtained was 0,93
Manajemen Organisasi Kemahasiswaan (Studi terhadap Senat Mahasiswa STIKES Indah Medan 2023/2024)
No full textManajemen organisasi yang baik diperlukan pengelolaan yang terarah, dan berkesinambungan maka sangat diperlukan manajemen yang baik, implementasi fungsi-fungsi manajemen dalam sebuah aktifitas kelembagaan merupakan penentu utama bagi tujuan organisasi. Tujuan penelitian mendeskripsikan penerapan manajemen organisasi kemahasiswaan di Senat Mahasiswa STIKES Indah Medan. Penelitian menggunakan pendekatan deskriptifkualitatif. Pengumpulan data dengan wawancara, observasi, dan dokumentasi. Adapun analisis data menggunakan teknik reduksi data, penyajian data, dan verifikasi data. Subjek penelitian Ketua Senat Mahasiswa STIKES Indah Medan dan Anggota-anggota Senat Mahasiswa STIKES Indah Medan dan objek penelitian adalah manajemen organisasi kemahasiswaan Senat Mahasiswa STIKES Indah Medan. Pengabsahan data menggunakan uji credibility, transferability, dependability, dan confirmability. Hasil penelitian meliputi : a) Perencanaan dirumuskan melalui rapat internal komisi, dilanjutkan rapat kerja, dilakukan di awal periode, namun belum memiliki visi dan misi; b) Pengorganisasian dilanjutkan dalam bentuk komisi-komisi dengan tugas masing-masing yang ditopang dengan adanya Job description; c) dalam penggerakan sebagian besar anggota SEMA tidak mengerti tugasnya, mayoritas bukan berlatar legislatif dan kehadirannya di rapat rendah dan belum melaksanakan amanah sesuai GBHO; d) pengawasan pelaksanaan tugas SEMA setiap bulan dan di akhir kegiatan, namun tidak semua anggota SEMA hadir dalam evaluasi tersebut
Pengaruh Motivasi Belajar Dan Coping Stress Terhadap Kesulitan Belajar Mahasiswa Baru Pada Masa Pembelajaran Daring Di Fakultas Pertanian Dan Peternakan Universitas Tjut Nyak Dhien
No full textTujuan dari penelitian ini adalah untuk mengetahui : 1) Pengaruh motivasi belajar
terhadap kesulitan belajar pada Mahasiswa Baru Fakultas Pertanian dan
Perkebunan Universitas Tjut Nyak Dhien; 2) Pengaruh Coping stres terhadap
kesulitan belajar pada Mahasiswa Baru Fakultas Pertanian dan Perkebunan
Universitas Tjut Nyak Dhien; 3) Pengaruh motivasi belajar dan Coping stres
terhadap terhadap kesulitan belajar pada Mahasiswa Baru Fakultas Pertanian dan
Perkebunan Universitas Tjut Nyak Dhien. Sebanyak 93 Mahasiswa baru Angkatan
2020 Fakultas Pertanian dan Peternakan Universitas Tjut Nyak Dhien dilibatkan
dalam penelitian ini. Instrumen yang digunakan adalah skala kesulitan belajar, skala
motivasi belajar dan skala coping stress. Analisis data yang digunakan adalah uji
asumsi klasik dan uji hipotesis. Hasilnya menunjukkan : 1) berdasarkan uji asumsi
bahwa data penelitian terbukti secara normalitas, homogenitas dan linieritas; 2)
terdapat hubungan positif dan ada pengaruh yang siginifikan Antara Motivasi
Belajar Terhadap Kesulitan Belajar Mahasiswa Pada Saat Pembelajaran Daring di
Fakultas Pertanian dan Peternakan Universitas Tjut Nyak Dhien yaitu sebesar
51,4%; 3) terdapat hubungan yang lemah dan ada pengaruh Coping Stress dengan
kesulitan belajar mahasiswa baru yang sangat signifikan pada masa pembelajaran
daring di Fakultas Pertanian dan Peternakan Universitas Tjut Nyak Dhien yaitu
sebesar 16%; 4) terdapat hubungan positif dan ada pengaruh Motivasi Belajar dan
Coping Stress dengan kesulitan belajar mahasiswa baru pada masa pembelajaran
daring di Fakultas Pertanian dan Peternakan Universitas Tjut Nyak Dhien sebesar
58.6%
Pengaruh pendekatan “resource based learning” terhadap hasil belajar matematika siswa kelas xi man 3 Medan t.p 2016/2017
No full textMasalah dalam penelitian ini adalah rendahnya hasil belajar matematika
siswa di kelas XI IPA MAN 3 Medan. Hal ini terlihat dari hasil observasi dan
wawancara yang telah dilakukan oleh peneliti, dikarenakan kurangnya sumber
belajar yang digunakan oleh guru. Sehingga diperlukan usaha dan strategi guru
dalam menggunakan metode pelajaran.
Penelitian ini bertujuan untuk mengetahui hasil belajar matematika di
kelas XI IPA MAN 3 Medan dengan menerapkan pendekatan resource based
learning. Penelitian ini menggunakan 2 tes yaitu pretest dan posttest.
Yang menjadi subjek dalam penelitian ini adalah siswa kelas XI IPA 2
sebagai kelas eksperimen dan XI IPA 3 sebagai kelas kontrol yang berjumlah
perkelas 40 orang. Setelah memberikan pretest pada kelas eksperimen dan kontrol
maka diperoleh nilai rata-rata kelas eksperimen 33,125 dan nilai rata-rata kelas
kontrol 38,275. Sedangkan setelah dilakukan penerapan strategi resource based
learning diperoleh nilai rata-rata pada kelas eksperimen sebesar 81,425 dan kelas
kontrol sebesar 43,9.
Dari hasil penelitian ini maka dapat disimpulkan bahwa terdapat pengaruh
pendekatan resource based learning terhadap hasil belajar matematika siswa dan
merekomendasikan para pelaksana pembelajaran untuk mengajarkan materi
dengan mengembangkan strategi pembelajaran resource based learning
Perlindungan Hukum terhadap Konsumen atas Permintaan Biaya Tambahan diluar Kesepakatan oleh Pelaku Usaha Pembiayaan Konsumen Pt.Citifin Multifinance berdasarkan Undang-Undang Nomor 8 tahun 1999 tentang Perlindungan Konsumen (Studi Kasus Putusan : Nomor 02/BPSK-PBG/PUTARBITRASE/VII/2016)
No full textKehadiran berbagai lembaga pembiayaan turut membawa andil yang besar dalam pembangunan ekonomi masyarakat khususnya masyarakat kecil. Kegiatan lembaga pembiayaan salah satunya adalah pembiayaan konsumen, yaitu merupakan model pembiayaan yang dilakukan oleh perusahaan finansial dalam bentuk pemberian bantuan dana untuk pembelian produk-produk tertentu. Adapun dalam skripsi ini membahas mengenai perlindungan hukum terhadap Konsumen jasa pembiayaan konsumen berdasarkan Undang-Undang Nomor 8 Tahun 1999 Tentang Perlindungan Konsumen, karena terdapat permasalahan mengenai permintaan biaya tambahan (denda) diluar kesepakatan oleh Pelaku usaha pembiayaan konsumen akibat keterlambatan pembayaran angsuran oleh Konsumen, yakni antara Muhammad Fadholi sebagai Konsumen dan PT.CITIFIN Multifinance sebagai Pelaku usaha. Penelitian ini menggunakan metode penelitian yuridis normatif dengan pendekatan perundang-undangan, data yang digunakan dalam penelitian ini adalah data sekunder dan data primer sebagai data pendukung dari data sekunder. Pengumpulan data melaui studi kepustakaan terhadap peraturan perundangundangan yang terkait. Data diuraikan dalam bentuk teks naratif secara sistematis dan metode analisis data yang digunakan adalah metode normatif kualitatif. Berdasarkan hasil penelitian terhadap Putusan Nomor: 02/BPSK- PBG/PUT-ARBITRASE/VII/2016 dapat disimpulkan bahwa Muhammad Fadholi sebagai Konsumen telah mendapat perlindungan hukum atas permintaan biaya tambahan oleh PT.CITIFIN Multifinance sebagai Pelaku usaha berdasarkan putusan Majelis Hakim BPSK Purbalingga yang didasarkan dengan Keputusan Mahkamah Agung Nomor: 2027K/BU/1984 Tentang Denda (Pinalty) yang menolak permintaan biaya tambahan (denda) tersebut, namun dalam putusan tersebut Majelis Hakim BPSK Purbalingga tidak secara jelas menggunakan Pasal 7 huruf (a), (b),(g) dan Pasal 4 huruf (c) dan (h), serta Pasal 8 ayat (1) huruf (f) Undang-Undang Nomor 8 Tahun 1999 Tentang Perlindungan Konsumen
PENGARUH PENDEKATAN STRATEGI RESOURCE BASED LEARNING TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS XI MADRASAH ALIYAH NEGERI 3 MEDAN
No full textThis study aims to analyze and know the Mathematics students’ learning outcome of grade XI of Madrasah Aliyah Negeri 3 Medan by applying resource based learning approach. This quasi-experimental study used a non-equivalent control group design with pre-test and post-test. . The sample of this study were 80 students who were divided into two classes, namely 40 students as the control class (class XI IPS) and 40 students as the experimental class (Class XI IPA1). The sampling technique used was purposive sampling. The results of this study indicated that by giving the pretest to the experimental and control classess, it was gained that the average value of the experimental class wa 33.125 and the average value of the control class wa 38.275. the experimental class is 81,425 and the control class is 43.9. From the results of this study, it can be concluded that there is was positive effect of the resource based learning approach on students' mathematics learning outcomes and it is recommended to develop resource based learning learning approach in learning process..
 
OPTIMIZATION OF LASER CUTTING ENGRAVING PERFORMANCE WITH ACRYLIC MATERIAL USING THE TAGUCHI METHOD APPROACH
No full textToday's laser cutting machining process is often utilized in large industries as well as individual and student scientific projects. Acrylic is one of the materials whose processing involves a lot of laser cutting, but currently many laser cutting, especially low power ones, are not optimally optimized. In this study, the author wants to optimize laser cutting with 6.5 Watt power using the Taguchi optimization method on solid black acrylic material with a thickness of 3 mm, with reference to the surface roughness value of the workpiece after being subjected to the laser cutting process using the Ra unit. The control factors included are laser distance, laser power, cutting speed and cooling time. The experimental process was carried out 27 times with replication of measurements 2 times. The best result from the experiment was the roughness measurement value of 0.782 µm while the mean roughness value was 2.271 µm. After conducting the experiment, it is known that the best results are obtained with a laser distance factor of 20.6mm, cutting speed of 70 mm/min, laser power of 6.5 watts and cooling time of 10 s. Meanwhile, the effect of factors on the surface roughness results is the laser distance 27%, cutting speed 40.9%, laser power 18.9% and cooling time 7.05%. After calibrating the laser cutting, the cutting accuracy increased from ± 1mm to ± 0.4 mm or an increase of 60%, with an average final dimension measurement of 24.87 mm
Penetapan Kadar Besi dan Seng Air Sumur Gali dan Sumur Bor pada Daerah Lenggadai Hilir secara Spektrofotometri Serapan Atom
No full textMany people in Lenggadai Hilir Village, Rimba Melintang District, Rokan Hilir Regency, Riau use dug well water and drilled well water as clean water, drinking water and household needs that look cloudy, colored and slightly odorous, possibly containing metals such as Fe and Zn. The content of Fe and Zn metals in clean water has the requirements of the Regulation of the Minister of Health of the Republic of Indonesia Number 416 / Menkes / PER / IX / 1990, namely a maximum of 1.0 mg / l Fe and a maximum of 15 mg / l Zn. The purpose of this study was to determine the levels of Fe and Zn in the water used by the population. This research method is descriptive quantitative. Determination of Fe and Zn levels in water samples in the village was carried out using Atomic Absorption Spectrophotometry (AAS), which were previously destroyed with nitric acid. Before determining the levels, it began with an identification test with several chemical reactions to ensure the presence of Fe and Zn content in the samples. The results showed that all samples tested contained Fe and Zn. All samples of drilled wells contain Fe, the levels of which do not meet the requirements and all Zn samples meet the requirements, from 8 dug well samples there are 6 dug well samples contaminated with Fe, namely dug well 1 (1), dug well 1 (2), dug well 2 (1), dug well 2 (2), dug well 3 (1) and dug well 3 (2). Thus, the water used by the community as clean water and household needs should not be used for household water needs and drinking water before processing and filtering before consumption
Implementation Of Game-Based Learning Using Kahoot Application In Increasing Student Interest And Motivation
No full textIn this era of rapidly evolving information and communication technology, approaches to learning also need to be adjusted to remain relevant and effective. One approach that is gaining popularity is the use of game-based learning, where game elements are used in the context of learning. Digital applications such as Kahoot are one of the tools that attract attention in the implementation of game-based learning. This study aims to explore the potential and effectiveness of game-based learning implementation using the Kahoot application in improving students' learning achievement at IT Indah Junior High School in Medan. The population in the research conducted had a total of 120 students. Meanwhile, the research sampling was conducted by utilizing the Krejcie and Morgan tables, resulting in 90 research samples. The results of the validity test of learning interest with learning motivation have a distribution of rcount > rtable. Meanwhile, the reliability test provides a description of the Alpha Cronbach results for each variable having a value greater than 0.6. The results showed a significant effect. The results of the study showed a sig value (2-tailed) of 0.000, meaning that the sig value <0.05, which means that the game-based learning method using the Kahoot application can increase student interest and motivation to learn at IT Indah Medan Junior High School
Tomb of Gubah Kh Sulaiman who spread Islamic knowledge on earth in Sedulang Setudung
No full textIn general, Islam came to the archipelago because it was brought by traders from various countries who had embraced Islam first. Like the Islamic heritage belonging to KH Sulaiman Bin Abdurrahman Delamat where he came to Pangkalan Balai to spread Islam and left traces of heritage that became cultural heritage and many pilgrims came to pay Nazar and he was a hero of independence in Sumatra. The author uses a qualitative research method that is produced from interviews and direct documentation by conducting observations at the location of the tomb located on Jalan Kelurahan Kendodong Raye,Banyuasine, Banyuasin III District, Banyuasin Regency 111. There are two results that will be discussed by the researcher, namely the first background of KH Sulaiman bin KH Abdurrahman Delamat and the spreader of Islamic religious knowledge in Pangkalan BalaiIn general, Islam came to the archipelago because it was brought by traders from various countries who had embraced Islam first. Like the Islamic heritage belonging to KH Sulaiman Bin Abdurrahman Delamat where he came to Pangkalan Balai to spread Islam and left traces of heritage that became cultural heritage and many pilgrims came to pay Nazar and he was a hero of independence in Sumatra. The author uses a qualitative research method that is produced from interviews and direct documentation by conducting observations at the location of the tomb located on Jalan Kelurahan Kendodong Raye,Banyuasine, Banyuasin III District, Banyuasin Regency 111. There are two results that will be discussed by the researcher, namely the first background of KH Sulaiman bin KH Abdurrahman Delamat and the spreader of Islamic religious knowledge in Pangkalan Bala
