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All Journal SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Jurnal Penelitian Pendidikan IPA (JPPIPA) Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal PGSD: Jurnal Ilmiah Pendidikan Guru Sekolah Dasar Klinikal Sains (Jurnal Analis Kesehatan) JURNAL MUTIARA KESEHATAN MASYARAKAT JURNAL MUTIARA PENDIDIKAN INDONESIA JURNAL ANALIS LABORATORIUM MEDIK Jurnal Indah Sains dan Klinis Jurnal Farmanesia Jurnal Multidisiplin Madani (MUDIMA) Jurnal Puan Indonesia JURNAL KIMIA SAINTEK DAN PENDIDIKAN JGK (Jurnal Guru Kita) JURNAL HANDAYANI PGSD FIP UNIMED Jurnal ABDIMAS MUTIARA JURNAL TEKNOLOGI, KESEHATAN DAN ILMU SOSIAL
Eka Margareta Sinaga
Universitas Katolik Santo Thomas
Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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FORMULASI KRIM ANTI-AGING DARI EKSTRAK KULIT BUAH JERUK LEMON (Citruslimon) Silalahi, Yosy Cinthya Eriwaty; Sinaga, Eka Margaret; Thaib, Cut Masyithah
Jurnal Farmanesia Vol 6 No 1 (2019): Jurnal Farmanesia
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Anti-aging is a preparation that is useful for preventing or slowing down the effects of aging such as wrinkles, dark spots, rough skin, and enlarged pores. Lemon peel contains flavonoids, namely hesperidin which can prevent aging and can improve skin health. This study aims to formulate anti-aging cream preparations, test the anti-aging effect, and determine the best concentration of anti-aging cream from lemon peel extract. The concentration of lemon peel extract used as a cream ingredient are: 2.5%, 5%, 7.5%, 10%. The tests carried out were homogeneity test, determination of emulsion type, pH, stability observation, skin irritation test. The test was carried out for 4 weeks. The results showed that the anti-aging cream preparations produced were homogeneous and showed an o/w type. The pH test when the cream was made was: 6-7 and after 12 weeks of storage, it was: 5-7. Anti-aging cream preparations have shown a significant increase in skin effects after 1 week, 2 weeks, 3 weeks, and 4 weeks. F5 (10% cream) provides the best anti-aging effectiveness. Lemon peel extract can be formulated into an o/a cream preparation that is able to provide anti-aging effects on the skin. Formula 5 (F5) with a concentration of 10% lemon peel extract was the most.
PENENTUAN KADAR BESI DI DALAM AIR SUMUR GALI PENDUDUK DI DESA KAMPUNG LALANG SECARA SPEKTROFOTOMETRI SINAR TAMPAK Thaib, Cut Masyithah; Sinaga, Eka Margaret; Purba, Dina Riani
Jurnal Farmanesia Vol 6 No 1 (2019): Jurnal Farmanesia
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/jf.v6i1.2743

Abstract

Water is one of the sources of iron compound contaminants and the iron content in dug well water used as a water source is influenced by location and environment. The purpose of this study was to determine the iron content in dug well water used in daily life in the village of Kampung Lalang. Samples were taken from five different dug wells. Determination of iron content was carried out according to the spectrophotometric method in accordance with the procedures and spectrophotometers used in the chemical laboratory of the University of Sari Mutiara Indonesia. The results showed that of the 5 samples tested there were 2 samples containing iron compounds exceeding the levels of iron compounds set by the Ministry of Health of the Republic of Indonesia Number 907/MENKES/SK/VII/2002, the permissible levels of iron compounds, which should not be more than 0.3 mg/day. l. The iron content of 5 wells ranged from 0.2457 - 0.405 mg/l.
IDENTIFIKASI ANTALGIN DALAM JAMU PEGAL LINU SECARA KROMATOGRAFI LAPIS TIPIS Supartiningsih, Supartiningsih; Sinaga, Eka Margaret; Silitonga, Maringan
Jurnal Farmanesia Vol 6 No 2 (2019): Jurnal Farmanesia
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/jf.v6i2.2754

Abstract

Traditional medicine is an ingredient or ingredient in the form of plant material, animal material, mineral material, preparation of extracts (galenic), or a mixture of these materials which have been used for generations. Jamu is traditional medicine, in general, herbal medicine cannot cure all kinds of diseases and its natural effect is not as fast as chemical drugs. Lately, medicinal chemicals are often added which are prohibited under the provisions of BPOM (Food and Drug Supervisory Agency). Antalgin is an analgesic-antipyretic and anti-inflammatory drug. Identification of antalgin in herbal aches and pains by thin layer chromatography aims to determine whether the herbal aches and pains circulating around Jalan Captain Muslim, Medan city contain levorphanoll drug chemicals or not. Antalgin identification in herbal pain relief was applied using Thin Layer Chromatography method with 60 F Silica gel stationary phase and chloroform-acetone-toluene (65: 25:10) mobile phase. From the results of identification by thin-layer chromatography (TLC) on herbal pain relief, it was found that the Rf value of the chromatogram spot on the levorphanol 0.16 reference standard was close to the sample Rf value (E) of 0.12. Based on the examination that has been carried out, it can be concluded that the positive herbal pain relief contains levorphanol drug chemicals so that the sample (E) tested does not meet the requirements.
ANALISIS MINERAL KALSIUM (Ca) DAN ZAT BESI (Fe) DENGAN VARIASI WAKTU PERENDAMAN PADA PEMBUATAN SUSU KEDELAI SECARA SPEKTROFOTOMETRI SERAPAN ATOM Sinaga, Eka Margaret; Silalahi, Yosy Cinthya Eriwaty; Sianipar, Artha Yuliana
Jurnal Farmanesia Vol 7 No 1 (2020): Jurnal Farmanesia
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/jf.v7i1.2768

Abstract

Minerals, calcium, and iron are needed for humans to stay healthy and active and have various roles in the human body. The purpose of this study was to determine the levels of calcium and iron in SK1, SK2, SK3, and SK4 milk. To compare calcium and iron levels in SK1, SK2, SK3, and SK4 milk. The results of the determination of calcium and iron levels by atomic absorption spectrophotometry showed that there was a difference in the content of calcium and iron in SK3 soy milk (12.178 ± 46, 399 mg/100 ml), SK1 milk (5, 3008 ± 8, 798 mg/100). ml), SK2 milk (9, 8821 ± 55, 676 mg/100 ml), SK4 milk (4, 8634 ± 125, 845). The iron content of SK4 milk is (1.3851 ± 82.709 mg/100 ml), SK1 milk is (0.5501 ± 68.924 mg/100 ml), SK2 milk is (0.6450 ± 50.026 mg/100 ml), SK3 milk of (0.7464 ± 64 mg/100 ml). The results showed that SK3 soy milk contained more calcium than SK1, SK2, and SK4. The results of iron levels showed that SK4 soy milk contained greater iron than SK1, SK2, and SK3 soy milk.
PENETAPAN KADAR PROTEIN DALAM SUSU FORMULA BAYI DAN ASI DI MEDAN SECARA KJELDAHL Sinaga, Eka Margaret; Maimunah, Siti; Sitompul, Erly
Jurnal Farmanesia Vol 6 No 1 (2019): Jurnal Farmanesia
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

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Abstract

Breast milk (ASI) is the best food for babies. Breast milk has advantages compared to other milk, including guaranteed cleanliness, the composition of breast milk is also very suitable for digestion, growth, and development of babies, one of the compositions contained in breast milk is protein. Currently, many mothers cannot breastfeed their own babies, so they choose infant formula as a substitute for breast milk. The purpose of this study was to determine differences in protein levels in infant formula and breast milk. Determination of protein content was carried out using the Kjeldahl method which is a simple method for determining total nitrogen in protein and other nitrogen-containing compounds. The Kjeldahl method is carried out through 3 processes, namely: the destruction process, the distillation process, and the titration process according to the procedures and tools used in the Chemistry Laboratory of the Sari Mutiara Indonesia University. The results of the determination of protein levels using the Kjeldahl method contained a protein with average levels in infant formula brand A (10.10 -+ 0.96) %, infant formula brand B (10.95 -+ 2.43) %, infant formula brand C (11.0666 -+ 1.6932) %, and breast milk (20.5733 -+ 3.1828) %.
GAMBARAN TELUR CACING TAMBANG PADA TINJA MASYARAKAT YANG BERUSIA 30-40 TAHUN DI DESA ALUE CANANG KECAMATAN BIRUEN BAYEUN KABUPATEN ACEH Siahaan, Maniur Arianto; Sinaga, Eka Margaretha; Sipayung, Apriska Dewi
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 7 No. 2 (2023): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v7i2.3861

Abstract

Infeksi telur cacing merupakan salah satu masalah kesehatan bagi masyarakat dunia. Sebagian besar terinfeksi kecacingan terjadi di daerah tropis dengan kelembaban tinggi, terutama menginfeksi masyarakat dengan kebersihan diri dan sanitasi yang kurang. Di indonesia prevalensi kecacingan masih tinggi diantaranya 60%-90% tergantung pada sanitasi lingkungan. Cacing tambang termasuk ke dalam golongan Nematoda Usus. Nematoda Usus berhabitat di saluran pencernaan manusia dan hewan. Tujuan penelitian untuk menganalisis adanya telur cacing tambang pada tinja masyarakat yang berusia 30-40 tahun di Desa Alue Canang, Kecamatan Bireun Bayeun, Kabupaten Aceh Timur. Jenis penelitian bersifat deskriptif dan pemeriksaan laboratorium dilakukan dengan metode flotasi (NaCl 40%). Hasil pemeriksaan tinja petani dengan jumlah sampel 15 orang masyarakat yang berusia 30-40 tahun ditemukan adanya infeksi telur cacing tambang sebanyak 4 orang (26%), dan 11 orang (74%) tidak ditemukan adanya infeksi telur cacing tambang.
Pendampingan Uji Kandungan Karbohidrat Pada Makanan Bagi Calon Guru Sekolah Dasar Dongoran, Jhonas; Sinaga, Eka Margareta; Br. Ginting, Siska Yolandasari; Situmorang, Desi Ratna Sari; Girsang, Kormeliaty; Panjaitan, Nomita; Sinaga, Ida Hotnauli
PUAN INDONESIA Vol. 6 No. 2 (2025): Jurnal Puan Indonesia Vol 6 No 2 Januari 2025
Publisher : ASOSIASI IDEBAHASA KEPRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37296/jpi.v6i2.341

Abstract

The implementation of the mentoring activity of carbohydrate content testing in food for prospective elementary school teachers as a learning innovation aims to improve teacher skills in learning and can improve the learning outcomes of students in science learning in grade IV of Elementary School 060893 Medan in the 2023/2024 academic year. This activity aims for prospective teachers to be able to integrate learning innovations through carbohydrate testing in food, so that the learning process activities become effective and efficient in accordance with the characteristics of elementary school science learning. The activity method is carried out through several stages of activities including: preparation activities, implementation, and evaluation. The results of the community service program show that science learning outcomes have increased in grade IV at Elementary School 060893 Medan.
Upaya Meningkatkan Kemampuan Berpikir Kritis Siswa dengan Model Pembelajaran Numbered Head Together Pada Pembelajaran Bahasa Indonesia di Kelas IV SDN 066048 Medan Helvetia Eka Margareta Sinaga; Defensus Situmorang; Wanrimar Rambe; Kevin Parbarita Purba; Pelita Ananda Sianturi; Rafiah Fatma; Elisabeth Ulima Siahaan
JGK (Jurnal Guru Kita) Vol. 9 No. 2: Maret 2025 (Article In Progress )
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jgk.v9i2.64641

Abstract

Penelitian ini bertujuan untuk meningkatkan kemampuan berpikir kritis siswa dalam pembelajaran Bahasa Indonesia melalui penerapan model pembelajaran Numbered Head Together (NHT). Penelitian ini menggunakan metode Penelitian Tindakan Kelas (PTK) yang dilakukan dalam dua siklus, dengan masing-masing siklus terdiri atas tahap perencanaan, tindakan, observasi, dan refleksi. Subjek penelitian adalah siswa kelas IV SDN 066048 Medan Helvetia, yang berjumlah 21 siswa. Teknik pengumpulan data dilakukan melalui observasi, tes, dan dokumentasi, serta hasil data dianalisis secara deskriptif kualitatif dan kuantitatif. Hasil penelitian menunjukkan adanya peningkatan yang signifikan dalam kemampuan berpikir kritis siswa. Pada siklus I, rata-rata nilai siswa sebesar 65 dengan persentase ketuntasan 38%. Setelah dilakukan perbaikan pada siklus II, rata-rata nilai meningkat menjadi 85 dengan persentase ketuntasan 81%. Hasil ini membuktikan bahwa penerapan model pembelajaran Numbered Heads Together efektif dalam meningkatkan kemampuan berpikir kritis siswa. Penerapan Numbered Heads Together juga mendorong siswa untuk lebih aktif, kooperatif, dan mampu bekerja sama dalam pembelajaran Bahasa Indonesia.
Upaya Meningkatkan Kemampuan Berpikir Kritis Siswa dengan Model Pembelajaran Numbered Head Together Pada Pembelajaran Bahasa Indonesia di Kelas IV SDN 066048 Medan Helvetia Sinaga, Eka Margareta; Situmorang, Defensus; Rambe, Wanrimar; Purba, Kevin Parbarita; Sianturi, Pelita Ananda; Fatma, Rafiah; Siahaan, Elisabeth Ulima
JGK (Jurnal Guru Kita) Vol. 9 No. 2: Maret 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jgk.v9i2.64641

Abstract

Penelitian ini bertujuan untuk meningkatkan kemampuan berpikir kritis siswa dalam pembelajaran Bahasa Indonesia melalui penerapan model pembelajaran Numbered Head Together (NHT). Penelitian ini menggunakan metode Penelitian Tindakan Kelas (PTK) yang dilakukan dalam dua siklus, dengan masing-masing siklus terdiri atas tahap perencanaan, tindakan, observasi, dan refleksi. Subjek penelitian adalah siswa kelas IV SDN 066048 Medan Helvetia, yang berjumlah 21 siswa. Teknik pengumpulan data dilakukan melalui observasi, tes, dan dokumentasi, serta hasil data dianalisis secara deskriptif kualitatif dan kuantitatif. Hasil penelitian menunjukkan adanya peningkatan yang signifikan dalam kemampuan berpikir kritis siswa. Pada siklus I, rata-rata nilai siswa sebesar 65 dengan persentase ketuntasan 38%. Setelah dilakukan perbaikan pada siklus II, rata-rata nilai meningkat menjadi 85 dengan persentase ketuntasan 81%. Hasil ini membuktikan bahwa penerapan model pembelajaran Numbered Heads Together efektif dalam meningkatkan kemampuan berpikir kritis siswa. Penerapan Numbered Heads Together juga mendorong siswa untuk lebih aktif, kooperatif, dan mampu bekerja sama dalam pembelajaran Bahasa Indonesia.
SYSTEMATIC LITERATURE REVIEW : TREND PENELITIAN MODEL PEMBELAJARAN CONCEPTUAL LEARNING DI PERGURUAN TINGGI Margareta Sinaga, Eka; Molliq Rangkuti, Yullita; Surya, Edy
SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Vol. 14 No. 4 (2024): SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/sejpgsd.v14i4.66216

Abstract

This research aims at using appropriate learning models to help students avoid misconceptions and help students construct new knowledge through appropriate learning models. The method used is a systematic literature review taken from national journals and international journals. Search for library sources in this article via Google, SagePub, Science Direct, Emerald Insight, Hindawi, Springer, Taylor and Francis, and Wiley databases for 2013-2024. Based on the results of the study, it was found that the concept learning model is a learning model that has the view that students are not only required to be able to form concepts through classifying data, but they must also be able to form concepts using their own abilities. By using the concept learning model in the learning process, it is hoped that students' understanding of concepts will increase. The concept learning model is designed to teach concepts and help students more effectively learn the concepts of the material they are studying so that it can significantly help them in the process of improving their learning outcomes. This model is an efficient method of presenting structured and planned information from a wide range of topics for students at every level of development.
Co-Authors Adiansyah Ahmad Hafizullah Ritonga Anas, Nirwana Angela Mericci Alpa Manurung Anton Sitepu Antonius Remigius Abi Apriska Dewi Sipayung Aritonang, Barita Ayu Vevariantina Bogor Lumbanraja Br. Ginting, Siska Yolandasari Darinda Sofia Tanjung Defensus Situmorang Dicky Yuswardi Wiratma Dongoran, Jhonas Dyan Wulan Sari Hs Edy Surya Eka Kartika Silalahi Elisabeth Ulima Siahaan Elly Sitorus Erdina Gultom Erly Sitompul Erly Sitompul Ester Julinda Simarmata, Ester Julinda Fahrur Rozi Fahrur Rozi Fatma, Rafiah Frikson Jony Purba Girsang, Kormeliaty Gultom, Erdiana Heka Maya Sari Sembiring Hotvera Marianis Irmina Pinem Irmnina Pinem Isra Kristina Sitohang Izwita Dewi Jon Kenedy Marpaung Juliana Junita Siahaan Kevin Parbarita Purba KMS. Muhammad Amin Fauzi Kms. Muhammad Amin Fauzi Kristini Siboro Lestari Sitohang Mahyudi Mahyudi Mahyudi Maniur A Siahaan Maniur Siahaan Maringan Silitonga Marpaung, Jon Kenedy Mitra Wati Ndruru Molliq Rangkuti, Yullita Nababan , Evi Lasrohana Nasution, Pandapotan Nikmat Jayadi Nova Florentina Ambarwati Nurhayati Simanullang, Damaris Panal Sitorus Panjaitan, Nomita Paskah Sri Ulina Tarigan Pelita Ananda Sianturi Purba, Dina Riani Purba, Kevin Parbarita Purwandari, Vivi Rafiah Fatma Rambe, Wanrimar Regina Sipayung Siahaan, Elisabeth Ulima Siahaan, M.Si, Maniur Arianto Siahaan, Maniur A Siahaan, Maniur Arianto Sianipar, Artha Yuliana Sianturi, Pelita Ananda Sihombing , Betty Agatha Silaban, Patri Silitonga, Maringan Simarmata, Yettrie Simbolon , Indah Sinaga, Ida Hotnauli Sipayung, Apriska Dewi Siregar, Hartaty Anna Siti Maimunah Siti Maimunah Siti Nurbaya Sitompul, Erly Sitorus, Elly Sitorus, Panal Situmorang, Defensus Situmorang, Desi Ratna Sari Sriadhi Sriadiprastio Sriadiprastio Supartiningsih - - Supartiningsih Supartiningsih Thaib, Cut Masyithah Tiara Rajagukguk Tiara Rajagukguk Tua Yohana Sinaga Turnip, Rotama Angelina Vevariantina, Ayu Wanrimar Rambe Yanti, Surfin Putri Yettrie Simarmata Yosy Cinthya Eriwaty Silalahi Yosy Cinthya Eriwaty Silalahi Yusron Abda'u Ansya Zai, Setiani Zuhairiah Nasution, Zuhairiah