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Marini Damanik
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Anti-Hyperlipidemia Effects of Sijukkot Leaf Extract Ethanol (Lactuca Indica) Ida Duma Riris; Saronom S ilaban; Marini Damanik; Nora Susanti
Indian Journal of Forensic Medicine & Toxicology Vol. 16 No. 2 (2022): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v16i2.18090

Abstract

Lactuca indica from Indonesia (Humbang Hasundutan) is a plant used to treat as antihyperlipidemia :Cholesterol, Trigliserida (TG), High Density Lippoprotein (HDL), Low Density Lippoprotein (LDL),on 28 male rats of the wistar strain (Rattus norvegicus) that have been given high-fat diets were given to3 control groups, namely rats given standard feed, groups of rats given standard and high-fat diets, andgroups of rats given simvastatin with treatment for 21 days. The groups with different doses were 100mg/kg bw, 200 mg/kg bw, 300 mg/kg bw and 400 mg/kg bw. Giving the ethanol extract of the leaves ofthe sijukkot plant has an effect on reducing total cholesterol levels. With the analysis obtained that theShapiro-Wilk Normality Test with a sig value > 0.05, the data is normally distributed. The results of theanalysis in the Test of Homogeneity of Variances table obtained a Sig value of 0.510. Cholesterol SigValue 0.510 > 0.05; TG 0.102>0.05; HDL 0.01 <0.05 and LDL 0.257> 0.05. Thus, the ethanolic extractof sijukkot leaves gave a positive effect on cholesterol levels in the serum lipid profile of High DensityLippoprotein (HDL and Low Density Lippoprotein (LDL).
Analysis Of Student Cognitive Results Using The Team Games Tournament Model Integrated On The Ferris Wheel Media For Buffer Solution Subjects Rizka Fahreza; Ayu Rahmi; Isna Rezkia Lukman; Marini Damanik; Eddiyanto Eddiyanto
Jurnal Siliwangi: Seri Pendidikan Vol 7, No 1 (2021): Jurnal Siliwangi Seri Pendidikan
Publisher : LP2M-PMP Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/jspendidikan.v7i1.4214

Abstract

This study aims to determine the effect of the Teams Games Tournament (TGT) learning model using the Ferris wheel on students' cognitive learning outcomes on the buffer solution. The form of research is a quasi-experimental design using the posttest only design method with non-equivalent groups. The sampling technique used purposive sampling technique. The population in this study were all students of class XI Mathematics and Natural Sciences, State High School 1 Lhokseumawe Year 2019/2020, totaling 294 students. With a research sample of 50 students. Data collection methods in the form of observation, interviews, and tests. Before conducting the research, the questions that will be used are first tested to a school that is equivalent to the place of research. The questions tested are viewed in terms of the level of problem difficulty, discriminatory power, validity, reliability, to test distractors. The results showed that there was a significant difference in the Experiment I class and the Experiment II class. Cognitive, shown from the average of the experimental class I was 85.37 while the experimental class II was 79.58. Cognitive results sig. (2-tailed) t-test for equality of means on equal variances assumed is 0.008 according to the existing criteria if the value of sig 0.05 then Ha is accepted. It was concluded that the use of the TGT model using the Ferris wheel had a positive effect on student learning outcomes in the material for the buffer solution for class XI MIA SMA Negeri 1 Lhokseumawe.
PERKEMBANGAN PENELITIAN PENDIDIKAN MENGENAI PENGEMBANGAN E-MODUL DENGAN SIGIL SOFTWARE Nadia Afi Shafira Nst; Nurfajriani Nurfajriani; Marini Damanik
PROSIDING SEMINAR KIMIA 2021: SEMINAR NASIONAL KIMIA 2021
Publisher : PROSIDING SEMINAR KIMIA

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Abstract

Inovasi pengembangan media pembelajaran dalam proses pembelajaran dapat meningkatkan kreativitas di abad ke-21 yang salah satunya adalah modul elektronik atau e-modul. Modul elektronik dapat dibuat dengan berbagai aplikasi, diantaranya adalah dengan sigil software. Dalam penelitian ini, peneliti tertarik untuk melakukan analisis perkembangan penelitian pendidikan dalam proses pembelajaran yang telah dipublikasi di Google Scholar dengan tujuan untuk memberikan gambaran dan kecenderungan perkembangan penelitian pendidikan selama rentang waktu 2018 sampai 2021. Hasil penelitian yang didapatkan yakni terdapat 88 artikel yang sudah dipublikasi di Google Scholar. Banyak peneliti melakukan penelitian pengembangan R&D dengan berbagai macam desain penelitian yang digunakan seperti studi kasus, studi fenomenologi, pra-eksperimen, deskriptif kualitatif dan lain-lain. Dalam teknik pengumpulan data, peneliti-peneliti menggunakan teknik wawancara, angket, dokumentasi, tes, dan observasi dengan subjek penelitian yang beragam. Jenis, desain, dan subjek penelitian serta teknik pengumpulan data dan juga analisis data dipilih berdasarkan dengan permasalahan yang akan diteliti serta kebutuhan peneliti dalam melengkapi hasil penelitiannya. Kata kunci: E-modul, Perkembangan, Sigil
Uji Organoleptik Dan Analisis Kandungan Gizi Cookies Subtitusi Tepung Biji Alpukat Lady Violita; Rasita Purba; Esi Emilia; Marini Damanik; Juliarti Juliarti
Jurnal Gizi dan Kuliner (Journal of Nutrition and Culinary) Vol 1, No 2 (2021): EDISI AGUSTUS
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.914 KB) | DOI: 10.24114/jnc.v1i2.26854

Abstract

Penelitian ini bertujuan untuk : 1). Menganalisis tingkat kesukaan (rasa, aroma, tekstur, dan warna) cookies dengan penambahan tepung biji alpukat sebanyak 30 persen, 50 persen, dan 70 persen; 2). Menganalisis formula terbaik pada cookies tepung biji alpukat; 3). Menganalisis kandungan gizi (kadar protein, lemak, dan karbohidrat) pada produk terbaik cookies tepung biji alpukat. Lokasi penelitian di Universitas Negeri Medan dan Laboratorium Balai Riset dan Standarisasi Industri Medan. Subjek (panelis) penelitian ini berjumlah 25 orang. Data hasil uji organoleptik dianalisis secara deskriptif dengan menggunakan persentase penerimaan responden dari masing-masing taraf perlakuan. Untuk mengetahui pengaruh subtitusi tepung biji alpukat terhadap perlakuan digunakan analisis statistik Kruskal Wallis. Hasil penelitian ini menunjukkan bahwa formula terbaik pada cookies dengan substitusi tepung biji alpukat sebesar 50 persen diperoleh rerata nilai 1,2 untuk rasa, 0,3 untuk warna, 0,6 untuk tekstur, dan untuk aroma 0,3 dengan total nilai keseluruhan 2,4. Berdasarkan hasil uji Kruskal Wallis diketahui bahwa terdapat perbedaan persepsi secara nyata dilihat dari tingkat kesukaan warna, aroma, rasa, dan tekstur cookies tepung biji alpukat (p=0,000). Kandungan gizi cookies dengan substitusi tepung biji alpukat 50 persen diperoleh kadar karbohidrat (53,9%),kadar protein (7,25%), karbohidrat (29,473%) sesuai dengan ketentuan SNI No. 2973-2011.Kata Kunci : Uji Organoleptik, Cookies, Tepung biji alpukat
Pengaruh Model PBL Terhadap Keaktifan Siswa dan Hasil Belajar Kimia SMA/MA pada Materi Koloid Muhammad Husny Roza; Marini Damanik
Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Vol 4, No 2 (2022): OKTOBER 2022
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v4i2.36101

Abstract

This study aims to determine whether there is a significant difference in student learning activities that are taught using the Problem Based Learning (PBL) model compared to the conventional model on colloidal material. The samples of this study were two students of class XI IPA MAN 2 Medan Silent Model, 1 (one) experimental class using the PBL model, 1 (one) control class using the conventional learning model. The research instrument used was an observation sheet on student learning activities and a total test instrument with 20 questions. The results showed that student learning activities in the experimental class were 89.33 and in the control class was 85.86, while student learning outcomes in the experimental class were 91.33 and in the control class was 86.88. In testing the data through the SPSS 22.0 for Windows program, if Sig. (2-tailed) < 0.05, then Ha is accepted. Meanwhile, if Sig. (2-tailed) > 0.05, then Ha is rejected. From the test results obtained results for hypothesis 1, where the value of Sig. obtained is smaller than 0.05, namely 0.01, so it can be concluded that the first hypothesis is accepted. From the test results for the results of hypothesis 2, where the value of Sig. obtained is smaller than 0.05, namely 0.02, so it can be concluded that the second hypothesis is accepted. For the hypothesis 3, where rcount = 0.64 while rtable at = 0.05 (N=36) is 0.36. Because rcount > rtable, then Ho is rejected, which means Ha is accepted.Penelitian ini bertujuan untuk mengetahui apakah terdapat perbedaan yang signifikan aktivitas belajar siswa yang dibelajarkan dengan model Problem Based Learning (PBL) dibandingkan dengan model konvensional pada materi koloid. Sampel penelitian ini adalah dua siswa kelas XI IPA MAN 2 Model Medan diam1 (satu) kelas eksperimen menggunakan model PBL, 1 (satu) kelas kontrol menggunakan model pembelajaran konvensional. Instrumen penelitian yang digunakan lembar observasi aktivitas belajar siswa dan instrumen tes jumlah dengan 20 soal. Hasil penelitian menunjukkan aktivitas belajar siswa pada kelas eksperimen sebesar 89,33 dan pada kelas kontrol sebesar 85,86, sedangkan hasil belajar siswa pada kelas eksperimen sebesar 91,33 dan pada kelas kontrol sebesar 86,88. Dalam pengujian data melalui program SPSS 22.0 for Windows, jika Sig. (2-tailed) < 0,05, maka Ha diterima. Sedangkan jika Sig. (2-tailed) > 0,05, maka Ha ditolak. Dari hasil pengujian didapatkan hasil untuk hipotesis 1, dimana nilai Sig. diperoleh lebih kecil dari 0,05 yaitu 0,01, sehingga dapat disimpulkan hipotesis pertama diterima. Dari hasil pengujian untuk hasil hipotesis 2, dimana nilai Sig. diperoleh lebih kecil dari 0,05 yaitu 0,02, sehingga dapat disimpulkan hipotesis kedua diterima. Untuk hipotesis 3, dimana rhitung = 0,64 sedangkan rtabel pada = 0,05 (N=36) adalah 0,36. Karena rhitung > rtabel, maka Ho ditolak yang berarti Ha diterima.
PENINGKATAN PENGETAHUAN GIZI DAN HIGIENE SANITASI PENGOLAHAN PRODUK PADA USAHA TAMBAR TINUKTUK KHAS SIMALUNGUN DI KOTA PEMATANGSIANTAR Nila Reswari Haryana; Tyas Permatasari; Marini Damanik; Caca Pratiwi; Halimul Bahri
ABDIMAS UNWAHAS Vol 7, No 2 (2022)
Publisher : Universitas Wahid Hasyim Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/abd.v7i2.7506

Abstract

Tinuktuk atau Sira lada merupakan sambal khas Simalungun. Tambar Tinuktuk ini sangat berpotensi untuk sebagai produk khas Simalungun, namun produksi masih sangat sederhana karena belum memiliki alat bantu untuk mempercepat persiapan bahan. Selain itu, pengetahuan mengenai kandungan gizi dan penerapan hygiene sanitasi yang bisa meningkatkan nilai jual Tambar Tinuktuk juga belum dimiliki oleh mitra. Oleh karena itu, dilakukanlah kegiatan pemberian alat bantu persiapan bahan dan penyuluhan guna meningkatan pengetahuan gizi dan hygiene sanitasi. Kegiatan pengabdian kepada masyarakat di Siantar Timur pada Usaha Tambar Tinutuk dilakukan dengan kegiatan yang diawali dengan sosialisasi serta diskusi kebutuhan mitra. Berdasarkan hasil diskusi, diketahui bahwa diperlukan sosialisasi materi tentang manfaat dan kandungan gizi Tambar Tinuktuk serta hygiene dan sanitasi pengolahan produk. Hasil pre dan post test menunjukkan bahwa terdapat peningkatan skor pengetahuan pada kedua materi ini. Selain itu, Mitra juga menerima alat bantuan untuk meningkatkan kuantitas produksi. Dengan demikian Kegiatan Kemitraan Masyarakat ini mampu mendorong Mitra untuk meningkatkan kualitas dan kuantitas produk, yaitu Tambar TinuktukKata kunci: Gizi, Higiene Sanitasi, Pengetahuan, Simalungun, Tinuktuk
PENGEMBANGAN E-MODUL BERBASIS DISCOVERY LEARNING MENGGUNAKAN MOODLE KELAS X SEMESTER GENAP Ika Sundari; Nurfajriani Nurfajriani; Marini Damanik
PROSIDING SEMINAR KIMIA Vol 1 No 1 (2022): Prosiding SNK 2022
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

This stuy aims to develop e-modules for class X high school student and to obtain innovative e-modules for even semester of class X high school students. The research method develop (R&D) using the ADDIE floating model. The subject and location of this research in class X SMA Swasta Harapan is located in Langkat. The instrument used in the BNSP instrument with four criteria namely content feasibility,language,graphic and presentation. The BNSP instrument is used to determine the suitability of the e-module that has been developed is assessed as a validator expert. From the result of the e-module validator based on discovery learning using moodle class X even semester,totality value is 4,20 with a valid category without revision. After the e-module was developed , it wa obtained average very suitable for use of 3,86 category very suitable for use in class X even semester Keyword: Development, E-modul,Discovery Learning, Moodle
PENGEMBANGAN PRODUK ROTI TAWAR SUBTITUSI PUREE TALAS BENENG (Xanthosoma undipes K. Koch) SEBAGAI MAKANAN ALTERNATIF SUMBER SERAT PADA LANSIA Aini Rahayu; Fatma Tresno Ingtyas; Esi Emilia; Marini Damanik
Jurnal Sains Boga Vol 7 No 1 (2024): Jurnal Sains Boga Volume 7 Nomor 1, Mei 2024
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JSB.007.1.05

Abstract

The purpose of this study was to determine the production of white bread as a substitute for puree taro beneng as a food source of fiber in the elderly. Knowing the acceptability of panelists to plain bread with taro beneng puree substitution 25%, 50% and 75% from the aspect of color, aroma, taste and texture. Knowing the nutritional content (ash content, moisture content, carbohydrate content, fat content, protein content and fiber content). This type of research is experimental research with a Completely Randomized Design (CRD) consisting of 1 control and 3 treatments for formulation development from the number of substitutes for beneng taro puree (Xanthosoma undipes K. Koch), namely: F1 (75% wheat flour: 25% taro puree), F2 (50% wheat flour: 50% taro puree), F3 (25% wheat flour: 75% taro puree). The acceptance test used 30 elderly panelists with a hedonic test (very like, like, somewhat like, don't like, really don't like). The data analysis technique was carried out descriptively and analyzed using the Kruskal Wallis test method and the follow-up test using the Man-Whitney. The research results showed that the best white bread that was most popular with the panelists based on the acceptability test results was the F2 treatment (50% wheat flour: 50% taro puree) with average values ​​for color (3.77), aroma (3.8), taste and texture (4.23). The results of the analysis of nutrient content were 31.79% water content, 1.80% ash content, 49.1 gr carbohydrates, 8.81 gr protein, 9.08 gr fat and 4.51 gr crude fiber.
Pemberdayaan Petani Jagung dalam Mengolah Limbah Tongkol Jagung Empowerment of Corn Farmes in Processing Corn Cob Waste Sri Adelila Sari; Marini Damanik; Puji Prastowo; Muslim, Muslim; Makhrany Dalimunthe; Feri Yuni Asiyah Kabeakan; Hanisah Hasibuan
Jurnal Pengabdian UntukMu NegeRI Vol. 8 No. 2 (2024): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jpumri.v8i2.7491

Abstract

Corn cob waste is a problem faced by corn farmers who live in Amplas Village, Dusun I Tambak Rejo, Percut Sei Tuan District, Deli Serdang Regency. This community service project was aimed to provide knowledge and training to the community about processing corn cob waste into organic fertilizer. The people involved were corn farmers those who were named the Reformasi Jaya Farmers Group. The method used was the lecture method by presenting agricultural expert speakers to provide knowledge to farmer groups. Apart from that, training was carried out, where farmer groups were taught and trained about processing corn cobs so that they become organic fertilizer. The results of this activity showed that the farming community was very enthusiastic and enthusiastic. Their knowledge increased by showing that they understood how to prepare fertilizer from processed corn cobs. After the fertilizer was applied to the corn plants, within 5 weeks, it was found that the stems and leaves of the corn plants were growing well. This fertilizer production was also expected to be able to improve the standard of living of farming communities.
The Effect of the iSpring - Assisted PBL Model on Students' Literacy HOTS on Reaction Rate Seli Cornelya Marantara Tambunan; Marini Damanik
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 6 No. 2 (2024): OCTOBER 2024 EDITION
Publisher : Universitas Negeri Medan

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Abstract

Every student is enforced to master scientific literacy in everyday life because this literacy is relevant to students' ability to related issues about science and their ideas as citizens. This research aims to analyze students' HOTS literacy scores using the PBL model with the assistance of iSpring Presenter media on reaction rate material to the hypothesized value of 70 and to present the aspects of HOTS literacy that are experiencing the most progress. This research used a One-Group Pretest-Posttest design. Based on test validation, 20 questions out of 22 valid questions were used (12 questions on the C4 aspect of reasoning, 6 questions on the C5 aspect of reasoning, and 2 questions on the C6 aspect of reasoning). Data analysis shows that the N-Gain value meets the high criteria, namely 70.03%. Hypothesis test analysis shows that ha is accepted or exceeds what was hypothesized (70), the tvalue is 6.96, and the ttable is 2.03 which is outside the ho acceptance area with a two-party test. As well as the results of the analysis of the HOTS aspect of literacy that was most developed in this research was the C5 aspect of reasoning with a percentage of 73.44%.
Co-Authors Aini Rahayu Ayu Rahmi Caca Pratiwi Eddiyanto Eddiyanto Emilia, Esi Fatma Tresno Ingtyas Feri Yuni Asiyah Kabeakan Halimul Bahri Hanisah Hasibuan Haryana, Nila Reswari Ida Duma Riris Ika Sundari Juliarti Juliarti Lady Violita Lukman, Isna Rezkia Makhrany Dalimunthe Muhammad Husny Roza Muslim Muslim Nadia Afi Shafira Nst Nurfajriani Nurfajriani Nurul Khumaida Puji Prastowo Rasita Purba Rizka Fahreza Saronom S ilaban Seli Cornelya Marantara Tambunan Sri Adelila Sari Tyas Permatasari