42 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..
 
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
LARANGAN PERNIKAHAN ANTAR DESA PLOSOJENAR, GABEL, DAN CARAT KABUPATEN PONOROGO (ANALISIS HUKUM ADAT)
No full textCustomary law is an original law found in an area including traditions, marriage, prohibitions, and others. Starting from community conversations about the prohibition of marriage between the villages of Plosojenar, Gabel, and Carat in Ponorogo Regency, which when asked why it happened they could not explain, in this thesis the author formulates 2 main problems that will be discussed through several references and research. The formulation of these problems is First, What are the causes of the marriage ban between Plosojenar, Gabel, and Carat villages in Ponorogo Regency? Second, What are the consequences of customary law for those who violate this marriage ban? Therefore, the purpose of this research is to examine how customary law regulates the prohibition, what is its history and what consequences are obtained if the prohibition is violated.
This research uses a type of research with empirical legal methods, where this research emphasizes the existing reality in order to obtain data used for research by means of interviews, observation, and documentation. This research uses primary data sources obtained directly from the community, and this research uses data analysis techniques with descriptive methods by explaining the data in a narrative manner to convey an explanation.
The results of this study show that the prohibition starts from the chronicle of the land which gives rise to an assumption that when marrying between villages it will get bad luck, the consequences of this prohibition include broken relationships in the middle of the road, disharmony, and also families who get sanctions. However, it was also found that the prohibition can be circumvented under several conditions. And if examined with Law No. 1 of 1974 this marriage can be null and void because it violates the provisions of Article 8 point f
Isotope (S-Sr-Nd-Pb) constraints on the genesis of the ca. 850 Ma Tumen Mo-F deposit in the Qinling Orogen, China
No full textThe Tumen Mo-F deposit is located on the southern margin of the North China Craton in central China. The deposit represents a fluorite-vein system hosted by carbonate rocks in the Neoproterozoic Luanchuan Group. Previous studies identify four hydrothermal stages at the deposit characterized by: Stage 1 veins of white fluorite, Stage 2 purple fluorite-molybdenite-pyrite (-galena), Stage 3 calcite-galena-pyrite-sphalerite (-chalcopyrite), and Stage 4 carbonate assemblages. The delta S-34 values for sulfides from the Tumen deposit range between -7.1 and 5.0 parts per thousand, with a bimodal distribution. The Stage 2 sulfides have delta S-34 values of -2.7 to 5.0 parts per thousand that are similar to that of granitic rocks, but different from andesite in the Xiong'er Group, amphibolitic gneiss in the Taihua Supergroup and the carbonaceous shale and chert in the Luanchuan Group. The near-zero delta S-34 values indicate a possible magmatic source for the Stage 2 fluids. However, the delta S-34 values for the Stage 3 sulfides have negative mean and a restricted range from -7.1 to -4.6 parts per thousand, which is different from that of the Xiong'er Group and Taihua Supergroup. The S-34-depleted fluid for the Stage 3 sulfides was inherited from the host rocks in the Luanchuan Group with low delta S-34 values of -12.4 to 7.2 parts per thousand. New Sr-Nd-Pb isotope data obtained from fluorite at Tumen indicate that the fluorite has higher Pb-isotope ratios, higher epsilon Nd(t) and lower I-Sr(t) values than the host rocks. The results suggests that the ore-forming fluids had epsilon Nd(t)> -4.8, I-Sr(t)<0.7068, (Pb-206/Pb-204)(i)>17.998, (Pb-207/Pb-204)(i)<15.576 and (Pb-208/Pb-204)(i)<38.201, which overlap the values of (epsilon Nd(t) = -3.8 to -1.3, I-Sr(t) = 0.7006-0.7061 for Neoproterozoic syenite in Qinling Orogen. This suggests that the deposit is related to a magmatic hydrothermal vein system associated with Neoproterozoic syenitic magmatism. (C) 2015 Elsevier B.V. All rights reserved.National Basic Research Program [2012CB416602, 2006CB403508]; National Natural Science Foundation of China [41202050, 41372085, 41373053, 41403032]; China Postdoctoral Science Foundation [2012M510261]SCI(E)[email protected]
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
