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INDONESIA
SAINTIFIKA
Published by Universitas Jember
ISSN : 14415433     EISSN : 25052768     DOI : https://doi.org/10.25037/saintifika.v24i2.130
Core Subject : Health, Science, Education, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Health Professions Mathematics Medicine & Pharmacology Physics Social Sciences
SAINTIFIKA: Jurnal Ilmu Pendidikan MIPA dan MIPA publishes a scientific paper on the results of the study and review of the literature in the sphere of natural science education in primary education, secondary education and higher education. Additionally, this journal also covers the issues on environmental education. SAINTIFIKA: Jurnal Ilmu Pendidikan MIPA dan MIPA is issued two times annually, i.e. Juny and December. The number of articles is 7 articles per year. Every article that is sent to the Editor, will be reviewed and scrutinized by the editorial board for eligibility or publication without diminishing the substance of the article.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 100 Documents
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ISOLASI DAN IDENTIFIKASI RIZOBAKTERI DARI TANAMAN KOPI ROBUSTA (Coffea canephora) YANG TERSERANG Prattylenchus coffeae Siti Rosida; Iis Nur Asyiah; Imam Mudakir
saintifika Vol 19 No 2 (2017)
Publisher : FKIP Universitas Jember

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Abstract

The majority of Indonesian coffee production is robusta coffee. The increasing coffee production with large scale causes changes in the soil ecosystem, it profitable for development of pest populations and diseases in coffee. One of pests that attack coffee plant is Pratylenchus coffeae. Rizosphere is ground around the roots measuring about 1 mm and surrounds entire surface of roots. Rizobacteria are beneficial bacteria that live in a saprophyte in a rhizosphere. This research aims to perform the isolation and identification of rhizobacteria from robusta coffee plants in Kali Bendo plantation, Banyuwangi Regency, East Java. In this research, the determination of research location is using purposive sampling technique, while the sampling technique is using random sampling method. The results showed there were 8 isolates obtained Bacillus sp. with isolate code 3R, G20, and I13, Micrococcus sp. with isolate code L20, Acinetobacter sp. with isolate code 4R and C13 and Pseudomonas sp. with isolate code M20 and A13.
PENINGKATAN HASIL BELAJAR SISWA MELALUI MODEL KOOPERATIF DENGAN PENDEKATAN TIPE NUMBERED HEADS TOGETHER Tulus Wijayanto; Dwi Sugeng Winarto
saintifika Vol 23 No 1 (2021)
Publisher : FKIP Universitas Jember

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Abstract

In teaching and learning activities, students who are active in the learning process will gain learning experiences that will affect student learning outcomes. When the teacher only uses the lecture method in delivering material, students will tend to listen and not be actively involved in teaching and learning activities. This research is a classroom action research consisting of two cycles with different materials, each cycle consisting of four stages, namely: planning, action, observation and reflection. The population in this study were all students of class VIII B of SMPN 7 Jember in the 2019/2020 lesson, totaling 32 students. Learning outcome data is in the form of psychomoric learning outcomes in the form of mental activities and student affective learning outcomes obtained from observation sheets during the teaching process, and cognitive learning outcome data is obtained from evaluation tests. The results showed that from the two cycles taken, data was obtained that the completeness of the students' classical mental learning outcomes was 73.50% in the first cycle and 89.00% in the second cycle, respectively. Classical mastery of cognitive learning outcomes 72.10% in cycle I and 88.90% in cycle II. While the classical completeness of affective learning outcomes was 78.40% in the first cycle and 90.30% in the second cycle.
ISOLASI BAKTERI ASAL SALURAN PENCERNAAN RAYAP PEKERJA (Macrotermes spp.) Nur Antriana
saintifika Vol 16 No 1 (2014)
Publisher : FKIP Universitas Jember

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Abstract

Rayap merupakan salah satu makroinvertebrata yang paling melimpah dan memainkan peran yang penting dalam ekologi di ekosistem tropis. Rayap mampu mendegradasi selulosa karena pada saluran pencernaannya terdapat mikroorganisme simbion seperti bakteri dan protozoa. Penelitian ini bertujuan untuk mengisolasi bakteri endofit yang bersimbiosis dengan rayap, kemudian dilakukan karakterisasi morfologi, fisiologi dan biokimia. Penelitian ini merupakan penelitian eksploratif. Rayap yang digunakan dalam penelitian ini merupakan rayap pekerja (Macrotermes spp.) yang diambil dari tanah. Isolasi dilakukan melalui dua cara yaitu tusuk dan gerus. Isolat tunggal yang diperoleh kemudian diinokulasikan pada media agar miring TSA untuk dilakukan uji fisiologis berupa uji indol, MR-VP, simmon sitrat, urease, fermentasi, katalase, oksidase, TSIA. Hasil isolasi diperoleh dua isolat yaitu isolat a dan isolat b. Isolat a berwarna putih dengan bintik hitam di tengah, berbentuk sirkular dengan tepi periferal, tepi luar koloni entire tegas dan nyata dengan elevasi rata sedangkan isolate b berwarna putih dengan bintik hitam di tengah, berbentuk sirkular dengan tepi periferal, tepi luar koloni undulate bergelombang dengan elevasi cembung. Hasil uji biokimia dan fisiologi isolat a uji indol negatif, MR negatif, VP negatif, simmon sitrat positif, urease positif, fermentasi positif, katalase positif, oksidase negatif, TSIA negatif sedangkan untuk isolat b uji indol negatif, MR positif, VP negatif, simmon sitrat negatif, urease positif, fermentasi positif, katalase positif, oksidase negatif, TSIA negatif.
KEKAYAAN JENIS TUMBUHAN HERBA ANGIOSPERMAE DI TAMAN HUTAN RAYA RADEN SOERJO SUB WILAYAH MOJOKERTO Nadya Grace Meidy Respitosari; Pujiastuti Pujiastuti; imam Mudakir
saintifika Vol 18 No 2 (2016)
Publisher : FKIP Universitas Jember

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Abstract

Raden Soerjo The Indonesian archipelago, The Java Island still has a tropical rain forest area with high diversity of species that located in the Raden Soerjo Grand Forest Park, East Java. The diversity of plant species is an important foundation for forest. One of the species diversity to be maintained is teh herbaceous plant. The herbaceous plant is a plants that have soft and succulent stems, little or no secondary tissue at all. Purpose of the research was to know the type of herbaceous plant in Raden Soerjo Grand Forest Park. This research includes descriptive explorative research. The processes in this study include sampling, identifying, classifying, and calculating spesies richness. The research started from February to March 2018. The research method used cruising method, while the sampling technique is purposive sampling technique. The angiosperm herbaceous that found in Raden Soerjo Grand Forest Park are 1183 plants, consisting of 31 species and divided into 17 families. The families consist of Asteraceae, Araceae, Colchicaceae, zingiberaceae, Commelinaceae, Begoniaceae, Urticaceae, Polygonaceae, Orchidaceae, Amaranthaceae, Acanthaceae, Ranunculaceae, Xanthorrhoeaceae, Pytolaccaceae, Solanaceae, Rubiaceae and Balsaminaceae
The Perbandingan Toksisitas Supernatan dan Endapan Ekstrak Terpurifikasi Daun Mindi (Melia Azedarach L.) terhadap Mortalitas Larva Nyamuk Aedes Aegypti L. Rachmita Mustika Putri; Dwi Wahyuni; Kamalia Fikri
saintifika Vol 24 No 1 (2022)
Publisher : FKIP Universitas Jember

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Abstract

One of the efforts to replace chemical insecticides to eradicate DBD is to obtain natural larvicides and it’s so environmentally friendly. Vegetable insecticides are carried out using a purified extraction process. The purpose of this study was to compare the toxicity of the supernatant and precipitated purified extract of mindi leaf (Melia Azedarach L.) on the mortality of Aedes aegypti L mosquito larvae. The samples used in this study ranged from 600-700 Aedes aegypti L mosquito larvae. This study used a design design. Completely Randomized (CRD) and the Minitab 14 for Windows application help to perform the analysis. The results showed the comparison of the toxicity of the purified extract supernatant of mindi leaf (Melia azedarach L). lower with an LC50 value > 1000 while the toxicity of the precipitated purified extract of mindi leaves (Melia azedarach L). higher with LC50 value < 1000. This research can be further tested regarding the magnitude of the toxicity in this study related to the measurement of environmental factors and also related to the KLT test to determine the possibility of new compounds, which are synergistic in the precipitate (fraksi etanol) and supernatant (fraksi n-heksan) in purified mindi leaf extract (Melia azedarach L).
EKSTRAK ETANOL DAUN ALPUKAT (Persea americana Mill.) SEBAGAI PENURUN EDEMA GLOMERULUS DAN KERUSAKAN SEL GINJAL TIKUS PUTIH (Rattus norvegicus) Indah Retuwati Ramadhana; Joko Waluyo; Kamalia Fikri
saintifika Vol 20 No 2 (2018)
Publisher : FKIP Universitas Jember

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Abstract

Avocado leaves (Persea americana Mill.) historically used as a herbal medicine used to ease the expense of urine and crushed a kidney stone in the urinary tract. Avocado leaves contain sugar, d-parseit, quercetin, flavonoids, and compounds sterin. The availability of avocado leaves in the society becames a great opportunity to be utilized as a herbal medicine, it is unknown yet whether the avocado leaves extract was able to decrease edema glomerulus and cell damage in the kidneys. The aim of this research knew the effect of ethanol extract of avocado leaves to decrease edema glomerulus and cell damage kidney of white rat. The research method used The Post Test Only Control Group Design. The dose was 100 mg/0.2kg bw, 200 mg/0.2kg bw, 300 mg/0.2kg bw, with inducer (ethylene glycol + ammonium chloride) as positive control, the treatment carried out during 10 days. Data analysis used Anova. The results showed for parameter damage the glomerulus with (F = 4.931, p = 0.027, < 0.05) which means there was the effect of the ethanol extracts of avocado leaves significantly to decrease edema glomerulus, while parameters proximal tubule damage with (F = 5.755, p = 0.018, < 0.05) which means there was the effect of the ethanol extracts of avocado leaves significantly to decrease cell damage kidney white rat. The dose of ethanol extract of avocado leaves which are most effective against the decrease of edema glomerulus was 100 mg/0.2kg bw and cell damage kidney white rat was 200 mg/0.2kg bw.
PROFIL SISWA BERKEMAMPUAN MATEMATIKA TINGGI DALAM MEMECAHKAN SOAL CERITA POKOK BAHASAN ARITMATIKA SOSIAL Kamila Duwi Fatmawati; Dinawati Trapsilasiwi; Erfan Yudianto
saintifika Vol 22 No 2 (2020)
Publisher : FKIP Universitas Jember

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Abstract

Profil pemecahan masalah merupakan gambaran secara umum mengenai kegiatan memecahkan masalah matematika yang dilakukan oleh siswa dengan menggunakan lima tahapan pemecahan masalah model IDEAL, yaitu mengidentifikasi masalah, mendefinisikan masalah, mencari solusi, melaksanakan strategi, dan mengkaji kembali serta mengevaluasi pengaruhnya. Hal tersebut menjadi menarik ketika dikaitkan dengan kemampuan matematika. Penelitian ini bertujuan untuk mendeskripsikan profil siswa berkemampuan matematika tinggi dalam memecahkan soal cerita pokok bahasan Aritmatika Sosial. Jenis penelitian ini adalah penelitian kualitatif. Siswa berkemampuan matematika tinggi diberi dua soal tes pemecahan masalah, kemudian dilakukan wawancara untuk mengetahui lebih dalam proses dalam memecahkannya. Hasil yang diperoleh adalah siswa berkemampuan matematika tinggi mampu memenuhi semua indikator dari setiap tahap pemecahan model IDEAL. Hal ini terlihat dari hasil pekerjaan yang diberikan dan wawancara yang dilakukan oleh peneliti terhadap siswa tersebut.
Pengujian Tingkat Kelembaban Lembaran Kertas Setelah Melalui Tahap Pengeringan Era Budi Prayekti; Anggun Amalia; Iin Afriyanti; Tresno Santoso
saintifika Vol 18 No 1 (2016)
Publisher : FKIP Universitas Jember

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Abstract

Proses pembuatan kertas terbagi menjadi dua bagian utama yaitu Stock Preparation dan Paper Machine. Pada bagian Paper Machine terjadi berbagai proses fisika yang akan mempengaruhi kualitas kertas hasil produksi. Salah satu proses pada paper machine yang berkaitan dengan temperatur adalah tahap pengeringan (dryer section). Pada tahap pengering lembaran kertas akan mendapatkan perlakuan perbedaan temperatur. Proses pengeringan terjadi dengan cara menaikkan temperatur secara bertahap sampai mencapai temperatur maksimal kemudian diikuti kembali dengan penurunan temperatur. Temperatur awal pada tahap pengering sebesar 73oC, selanjutnya dinaikkan sampai 109oC, kemudian diturunkan lagi menjadi 82oC. Temperatur tahap pengeringan dapat mempengaruhi kualitas kertas. Proses pada tahap pengeringan dapat mempengaruhi ikatan antar serat, yakni ikatan hidrogen yang menyebabkan kekuatan jaringan meningkat. Parameter pengujian kualitas kertas yang berkaitan dengan temperatur pada tahap pengeringan adalah kelembaban kertas. Lembaran kertas yang melewati bagian pengering akan memiliki kelembaban antara 5% - 6%.
TOKSISITAS EKSTRAK TERPURIFIKASI DAUN PULUTAN (Urena lobata L.) FRAKSI ETANOL TERHADAP MORTALITAS LARVA NYAMUK Aedes Aegypti Indah Atika Amalia; Dwi Wahyuni; Kamalia Fikri
saintifika Vol 23 No 2 (2021)
Publisher : FKIP Universitas Jember

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Abstract

Dengue hemorrhagic fever (DHF) is a disease that is a major public health problem throughout the world. Indonesia is one of the countries with the largest dengue cases in the world. One of the largest dengue cases in Indonesia is in East Java Province whic h reached 5,733 cases. Dengue fever is transmitted to humans through the Aedes aegypti mosquito infected with the dengue virus. The way to control DHF is to control the vector, namely by breaking the mosquito life cycle using selective and safe biological larvicides. Plants that have potential as biological larvicides are pulutan ( Urena lobata L.) especially the leaves. Pulutan leaves are used as biological larvicides through an extract purification process. This study aims to determine the toxicity of puri fied extract of pulutan leaf ( Urena lobata L.) ethanol fraction on mortality of Aedes aegypti mosquito larvae. Toxicity based on WHO standard (2002), was determined by LC 50 of purified extract of pulutan leaf ethanol fraction on mortality of Aedes aegypti mosquito larvae. Results Based on probit analysis using the Minitab 14 application software, the LC 50 value was 905,36 5 ppm with a lower limit of 810 , 626 ppm and an upper limit o f 992 , 277 ppm. According to this study, purified extract of pulutan leaf ethanol fraction was toxic to Aedes aegypti mosquito larvae and had a larvicidal effect
ANALISIS PENGGUNAAN MEDIA VIDEO PEMBELAJARAN ETNOMATEMATIKA TARI JEJER GANDRUNG KEMBANG MENUR SEBAGAI HASIL BELAJAR SISWA Sofia Novaliyanti Mahmuda; Susanto Susanto; Erfan Yudianto
saintifika Vol 21 No 2 (2019)
Publisher : FKIP Universitas Jember

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Abstract

Mathematics has an important role in education and other sciences. Generally learning mathematics seems conventional and theoretical, so students assume that mathematics seems stiff, difficult, and boring. Education can be combined with local culture in creating a more contextual education atmosphere, especially in the mathematical concept commonly referred to as ethnomatematics. This study aims to examine the use of video media for learning ethnomatematics Traditional Dance of Gandrung Kembang Menur typical of Banyuwangi on increasing student interest in learning. This study uses qualitative methods, the data obtained is the result of pre-test and post-test with 8 multiple choice questions. The results showed that there was an utilization of Etnomatematics learning video media on the Jejer Gandrung Kembang Menur dance typical of Banyuwangi in the process of influencing student learning outcomes.

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