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All Journal Jurnal Dikdas Jurnal Kreatif Tadulako Online Kreatif agriTECH Unnes Science Education Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Akademika Kimia Chimica et Natura Acta Indonesian Journal of Chemistry JANGKA Husada Mahakam: Jurnal Kesehatan Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Pendidikan Guru (JPG) Panrannuangku Jurnal Pengabdian Masyarakat Journal for Lesson and Learning Studies Jurnal Kajian Pariwisata Media Eksakta Jurnal Akademika Kimia Mahakam Nursing Journal (MNJ) Jurnal Cendekia Ihya Mitra Sains Jurnal Akademika Kimia
Siti Nuryanti
Department Of Chemistry, Faculty Of Teacher Training And Education, Tadulako University, Jln. Soekarno-Hatta Km 8, Palu
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEAD TOGETHER (NHT) UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATA PELAJARAN IPA KELAS IV SD NEGERI 3 TONDO Suhardi Suhardi; Marungkil Pasaribu; Siti Nuryanti
Jurnal Dikdas Vol 2, No 2 (2014)
Publisher : Universitas Tadulako

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Abstract

Permasalahan pokok pada penelitian ini adalah rendahnya hasil belajar siswa kelas IVa SDN 3 Tondo pada mata pelajaran IPA. Salah satu faktor penyebab rendahnya hasil belajar siswa adalah Kurangnya varian model atau metode yang digunakan oleh guru dalam mengajar. Jenis penelitian ini merupakan penelitian tindakan kelas (PTK) yang dilaksanakan dalam dua siklus, setiap siklus meliputi perencanaan, pelaksanaan, observasi dan refleksi.Penelitian ini bertujuan untuk meningkatkan hasil belajar IPA siswa kelas IVa SDN 3 Tondo khususnya pada pokok bahasan struktur dan fungsi bagian tumbuhan dengan menerapkan model pembelajaran kooperatif tipe Numbered Head Together. Subyek penelitian adalah siswa kelas IVa SDN 3 Tondo yang berjumlah 20 orang. Manfaat penelitian ini adalah memberikan sumbangan pemikiran dan tolok ukur kajian dalam penelitian selanjutnya, selain itu dapat memberikan peningkatan mutu pembelajaran melalui model pembelajaran NHT. Jenis data yang dikumpulkan adalah data kualitatif berupa hasil observasi aktivitas siswa dan guru pada saat proses belajar-mengajar berlangsung, dan data kuantitatif berupa hasil belajar siswa melalui tes evaluasi akhir tindakan. Hasil siklus I diperoleh ketuntasan belajar klasikal 65%, aktivitas guru sebesar 87% dan aktivitas siswa sebesar 78%. Selanjutnya pada siklus II diperoleh ketuntasan belajar klasikal sebesar 85%, aktivitas guru berada pada kategori sangat baik yaitu 95% dan aktivitas siswa berada pada kategori sangat baik sebesar 92% Berdasarkan indikator penelitian maka dapat disimpulkan bahwa penerapan model pembelajaran kooperatif tipe Numbered Head Together dapat meningkatkan hasil belajar IPA siswa Kelas IV SD Negeri 3 Tondo Palu.Kata Kunci : Pembelajaran Kooperatif tipe NHT, Hasil Belajar IPA.
Pembuatan Tepung dari Biji Kakao (Theobroma cacao L) dan Uji Kualitasnya Asmaul Husna; Suherman Suherman; Siti Nuryanti
Jurnal Akademika Kimia Vol 6, No 2 (2017)
Publisher : Universitas Tadulako

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Abstract

Cacao plant is one of the plantation crops which contribute to improving economic for the Province of Central Sulawesi. This study aimed to prepare and test the flour quality of cocoa beans flour after soaking in salt water, NaCl, and lime water, Ca(OH)2, at various concentrations. Samples were cocoa beans taken from Rantekala Sigi Province of Central Sulawesi, furthermore, the cocoa beans were made into flour. Results showed that the moisture, ash, fat, and carbohydrate of cocoa beans flour were almost met the ISO standard, with the exception of the protein level, i.e 5.0% for max. moisture level, 1.6% for max. ash level, 10.0% for min. fat level, and 70% of min. carbohydrates level. But, the best quality was from soaking with lime water at a concentration of 20% with a value of 2.8% moisture level, at a concentration of 15% with a value of 24.6% level, and at a concentration of 10% with a value of 78.26% carbohydrate level. However, for the ash level, the best quality was by soaking in salt water at a concentration of 5% with a value of 4.1%. Based on these results, it can be concluded that the cocoa beans flour is better soaked in lime water than salt water.
Pemanfaatan Kunyit (Curcuma domestica Val) Untuk Memurnikan Minyak Jelantah Muhammad Silmi Hi Abubakar; Siti Nuryanti; Suherman Suherman
Jurnal Akademika Kimia Vol 7, No 1 (2018)
Publisher : Universitas Tadulako

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Abstract

Study on the purification and quality test of used cooking oil with turmeric has been done. This study aims to determine the quality of cooking oil after purified turmeric. The quality parameters of oil studied were the moisture content, free fatty acids (FFA), and peroxide. The methods used for determination of these parameters were gravimetry for moisture content, acid-base titration for free fatty acids, and iodometric for peroxide. The test results for water from 0.6% to 0.4% free fatty acid from 1.2% to 0.2%, and peroxide levels before and after purification were successively from and 6 meq/g to 4 meq/g, respectively. Only free fatty acids of all three parameters met the requirement of SNI.
Antioksidan Dari Daun Sirih Merah (Piper Crocatum) Jeane Maria Mustika Tonahi; Siti Nuryanti; Suherman Suherman
Jurnal Akademika Kimia Vol 3, No 3 (2014)
Publisher : Universitas Tadulako

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Abstract

Research on the antioxidant activity testing has been done using red betel (Piper crocatum) leafs in Palu, Central Sulawesi. This research was conducted to determine the IC50 value and antioxidant activity of red betel leafs extracts which has the ability as a natural antioxidant. This research was conducted with an experimental method using an extraction maceration technique, DPPH (1,1-diphenyl-2-pikrilhidrazil) as free radicals, vitamin C as a positive control, UV-Vis spectrophotometer as an antioxidant test equipment with red betel leafs extracts as samples. Samples of red betel leaves were used as much as 30 grams, and the solvent were absolute ethanol. Various concentrations of the red betel leafs extracts were 20 ppm, 40 ppm, 60 ppm, and 80 ppm. Testing of antioxidant activity was done by using a UV-Vis Spectrophotometer and IC50. The results showed that the IC50 value of the red betel leafs (Piper crocatum) extracts was 47.45 ppm. The red betel leafs extract was categorized into a very powerful antioxidant based on IC50 value, where the optimum percentage of red betel leaf extract activity in inhibiting free radical was 81.82%.
Study of Conceptual Change in Chemistry for Class XI Science High School Students Hartarti Uminah; Ijirana Ijirana; Siti Nuryanti
Jurnal Akademika Kimia Vol. 11 No. 2 (2022)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2022.v11.i2.pp77-82

Abstract

Varied initial concepts can be an obstacle or support in understanding a new concept. The study of changes in students' chemical concepts was carried out on thermochemical material. This study aimed to examine changes in students' thermochemical concepts in each subject of high, medium, and low ability. Qualitative descriptive research with mixed methods was conducted on SMAN 1 Bumi Raya Morowali, Central Sulawesi students. The study began by giving an initial test to all students of class XI IPA 1 and 2, as many as 60 students, to obtain initial concept data and the basis for grouping subjects on each ability criterion (high, medium, and low). Every two people from each ability group in semi-structured interviews. Thermochemical material is re-taught using a metacognitive skill learning model and given a final test and interview to get concept data after learning to assess conceptual changes. Five concepts become variables in this study: the heat of reaction, enthalpy of reaction in a calorimeter, Hess's law, energy diagrams, and bond energies. The results showed that concept changes occurred in all high, medium, and low ability subjects. Changes in students' conceptions occurred in the concepts of the heat of reaction, reaction enthalpy, calorimeter, Hess's law, energy diagrams, and bond energy. The most significant conceptual change occurred in the subject of medium ability and low ability, namely the concept of bond energy.
Uji Daya Hambat Ekstrak Lengkuas (Alpinia galanga) Terhadap Pertumbuhan Jamur Candida albicans Yuma Ardian Allu; Siti Nuryanti
Media Eksakta Vol 18 No 2 (2022)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v18i2.2211

Abstract

Galangal (Alpinia galanga) is a nutritious plant that can cure various diseases. This part of the plant, such as the rhizome, functions as a traditional medicine. This study aims to determine the inhibition of the fungus Candida albicans using galangal extract. Galangal extract was made using three different kinds of the solvents, namely hexane, ethyl acetate, and methanol. The suspension of Candida albicans fungus was obtained from the Biology Laboratory, FMIPA, Tadulako University. Fungal test using the well method. The results showed that the inhibitory power of galangal extract against the growth of Candida albicans using ethyl acetate and methanol was greater than that of hexane. Based on observations, the percentage of inhibitory power of galangal extract on the growth of Candida albicans with hexane, ethyl acetate, and methanol as solvents was 0% for hexane, 1,70% for ethyl acetate, and 4,70% for methanol.
Analisis Kadar Senyawa Flavonoid pada Daun Bawang Hutan (Eleutherine palmifolia (L.) Merr.) Mitha Widya Ningrum; Siti Nuryanti
Media Eksakta Vol 18 No 2 (2022)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/me.v18i2.2473

Abstract

Forest onion (Eleutherine palmifolia (L.) Merr.) is one of the plants commonly used by the community as traditional medicine. This plant can cure diseases such as diabetes mellitus, hypertension, prevent stroke and can lower cholesterol. Forest onions are known to contain compounds such as flavonoids, phenolics, tannins, and saponins. This study aims to determine the levels of flavonoid compounds in forest leek extract. Samples were extracted using maceration method with 70% ethanol as solvent. Determination of flavonoid levels using a UV-VIS spectrophotometer at a wavelength of 432.5 nm and using quercetin as a comparison (QE). The results of this study showed the levels of flavonoid compounds in forest leeks were 27.203 mg/100g±0,348.
HUBUNGAN ANTARA DUKUNGAN KELUARGA DAN MOTIVASI MELAKUKAN ROM PADA PASIEN PASCA STROKE siti nuryanti
MNJ (Mahakam Nursing Journal) Vol 1 No 2 (2016): Nov 2016
Publisher : Poltekkes Kemenkes Kalimantan Timur

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Abstract

The role of the family is needed for post-stroke care for family members who generally suffer sequelae that impact on reliance in meeting basic needs. Family support will motivate family members with post-stroke rehabilitation thus helping the recovery process. The purpose of this study was to determine the relationship between Family Support and Motivation Doing Range Of Motion (ROM) on Post-Stroke Patients in Hospital Dr. Kanudjoso Balikpapan. This type of research is descriptive analytic and cross sectional study design. This research was conducted in Poli Poli Neuroscience and Medical Rehabilitation Hospital Dr. Kanudjoso. Sampling was done by purposive sampling with the number of 60 samples. The results showed no association with the motivation of support information p value = 0,000, there is a relationship of emotional support and motivation p value = 0.005, no instrumental support relationships with the motivation p value = 0,002, there is a relationship of support with motivational awards p value = 0,000, whereas the most dominant factor related to patient motivation did ROM is variable information support wald p (pvalue = 0,003). The hospital suggested to improve information support families in post-stroke patients, for caregivers improve nursing care in patients with post-stroke, for the development of science to follow-up studies using other variables and different research methods that can be used as a comparison.
HUBUNGAN KONSEP DIRI DENGAN PERILAKU BULLYING PADA SISWA SEKOLAH MENENGAH PERTAMA Lilik Suparwati; Rasmun Rasmun; Siti Nuryanti; Edi Sukamto
Husada Mahakam Vol 13 No 1 (2023): Mei 2023
Publisher : Poltekkes Kemenkes Kalimantan Timur (URL: http://poltekkes-kaltim.ac.id/)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35963/hmjk.v13i1.387

Abstract

Bullying adalah bentuk kenakalan remaja yang ditimbulkan dari gangguan perkembangan psikososial yaitu perilaku remaja yang gemar melanggar aturan, mengucilkan kelompok, menghina, dan mengejek. ntuk mengetahui karakteristik respoden, konsep diri, dan perilaku bullying serta hubungan konsep diri dengan perilaku bullying. Jenis penelitian kuantitatif dengan metode cross sectional. Sampel proportional stratified random sampling sebanyak 97 responden. Hasil penelitian menunjukkan remaja dengan konsep diri negatif 52,6%, perilaku bullying tinggi sebanyak 47,4%. p = 2,603×10-11 <0,05 artinya terdapat hubungan bermakna konsep diri dengan perilaku bullying pada siswa kelas VII di SMP Negeri 32 Samarinda dengan r = -0,613 yang berarti hubungan kuat dan arah hubungan negatif. Sehingga dapat disimpu erdapat hubungan konsep diri dengan perilaku bullying pada siswa kelas VII di SMP Negeri 32 Samarinda.
Hubungan Gaya Belajar Dengan Keterampilan Berpikir Kritis Dan Kemampuan Kognitif Siswa Pada Mata Pelajaran Kimia di Kelas X SMKN 1 Bungku Tengah Nurbaeti Nurbaeti; Siti Nuryanti; Indarini Dwi Pursitasari
Mitra Sains Vol 3 No 2 (2015): April
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v3i2.124

Abstract

This research aimed to describe correlation between: (1) learning style and critical thinking skill; (2) learning style and cognitive ability in chemistry subject; and (3) critical thinking skill and cognitive ability of students in chemistry subject at Class X of SMKN I Bungku Tengah. The population of the research was 48 students at Class X of SMKN I Bungku Tengah registered in 2013/2014 academic year. The sample of the research was the overall of the population member (saturated sample). The collecting data used questionnaire and multiple choice test. Data of the research were analyzed by using correlation and regression analyses. Based on the data analyses, it could be concluded that there were positive correlations between: (1) the learning style and the critical thinking skill; (2) the learning style and the cognitive ability; and (3) the critical thinking skill and the cognitive ability in chemistry subject of the students at Class X of SMKN IBungku Tengah.
Co-Authors A. Ma’ruf Afadil Agustin Tiwow Al Gifary, Muhammad Ali Amran Amran Rede Anang Wahid M.Diah Arun Haryanto Arwansyah Asmaul Husna B, Supriadi Baharuddin Hamzah Barau, Fitri Chairil Anwar Chintia N. Barani Cynthia L. Radiman Daini, Dinda Ulan Daud Karel Walanda Dewi Satria Ahmar Dhamayanti, Noviasri Diniyanti, Diniyanti Edi Sukamto Ergina, Ergina Frantauansyah, Frantauansyah Hartarti Uminah I Made Tangkas Ijirana Indarini Dwi Pursitasari Indarini Dwi Puspitasari Irwan Irwan Jamaludin M Sakung Jeane Maria Mustika Tonahi Jusman Lapatta Karmila Karmila Kasmudin Mustapa Laksono Trisnantoro Lamalat, Tri Sulistiyawati Latupeirisa, Veronica Purnama Sari Lilik Suparwati Lis K. Djaledje Ma’ruf, Ahmad Magfirah, Magfirah Male, Kasmir Sy. Marungkil Pasaribu Megawati T. H. Romu Mery Napitupulu Minarni R.J Minarni Rama Jura Mitha Widya Ningrum Moh. Azhar Afandy Muhamad A. Martoprawiro Muhammad Agus Muljanto Muhammad Silmi Hi Abubakar Nesia Andriana Nirwan Syafrin Nur A. O. Buhang Nur, Kurniati Nurbaeti Nurbaeti Nurdin Rahman Nurfadila, Safna Nurhasan, Abdul Kodir Nurmiati Nurmiati Nursucianti, Nursucianti Paulus H. Abram Pratiwi, Tia Putri Radiansah, Roy Rahmasita Rahmasita Rahmawati, Rahmawati Rasmun, Rasmun Ratman Ratman Ratman Ratman Robiansyah, Yal S, Afadil Sabirin Matsjeh Sahida Sahida Saldi, Heri Salsabila, Unik Hanifah Setianingsih, Rahmadiana Siti Aminah Siti Nurbaya Sitti Rahmawati Somang, Olivia Inrawati I. Sri Mulyani Sabang SRI RAHAYU Sri Wahyuni Sriyulaningsi, Sriyulaningsi Sriyundiyati, Ni Putu Sudarmo, I Gede Suhardi Suhardi Suherman Suherman Suherman Suherman Sulhajir, Wahyuni Supriadi Supriadi Suwiyarsa, I Nyoman Tahril Tri Joko Raharjo U.B., Sitti Nadira Ubaidah, Nurcholis Al Winarti Winarti Yani Restiani Widjaja, Yani Restiani Yuli Nurmayanti Yuma Ardian Allu Yusuf Kendek Yusuf Kendek Yusuf Kendek