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All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Penelitian Saintek INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni Jurnal Pendidikan Matematika dan IPA Jurnal Sains Dasar Journal of Degraded and Mining Lands Management Jurnal Pendidikan Biologi Indonesia Jurnal Edukasi Matematika dan Sains Indonesian Journal of Science and Technology Jurnal Tadris Kimiya Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Jurnal Ilmiah Peuradeun Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Chemistry Warta Penelitian Perhubungan Faletehan Health Journal Molekul: Jurnal Ilmiah Kimia JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Journal Evaluation in Education (JEE) Jurnal Keperawatan 'Aisyiyah Molekul: Jurnal Ilmiah Kimia Jurnal Pendidikan MIPA Health Idea IJIS Edu : Indonesian Journal of Integrated Science Education
SRI ATUN
Universitas Negeri Yogyakarta
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Education Engineering Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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STUDENTS’ CURIOSITY PROFILE IN EXCRETION SYSTEM TOPIC TAUGHT USING AUTHENTIC INQUIRY LEARNING Mouromadhoni, Kasyfi Rifqi; Atun, Sri; Nurohman, Sabar
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol 5, No 3 (2019): November
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v5i3.7689

Abstract

Curiosity is a basic important aspect encourages students in finding various information which, in turn, aid them to encompass the concept learnt. This descriptive research aimed at elaborating the curiosity profile of junior high school students in science learning, particularly in excretion system topic who were taught using the authentic inquiry learning. This research was conducted at SMP Negeri 14 Yogyakarta with 32 of eight graders as the subjects. The instrument used was curiosity response questionnaire. The data obtained was analyzed using percentage. The results showed that the average of curiosity achievement obtained was categorized as strong (75%). However, the comparison of implementations between the authentic inquiry learning and the other learning models are needed to get more comprehensive information.
The Effect of Science Technology Society (STS) Learning On Students’ Science Process Skills Dewi, Ni Putu Laksmi Cintya; Atun, Sri
Jurnal Ilmiah Peuradeun Vol 7 No 1 (2019): Jurnal Ilmiah Peuradeun
Publisher : SCAD Independent

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (830.907 KB) | DOI: 10.26811/peuradeun.v7i1.288

Abstract

This study aims to determine the effect of the application of Science Technology Society (STS) learning in high school students of class XI IPA. This research is a quasi-experimental research using posttest only design. The sample used is 64 students from Senior High School in Bantul district, Yogyakarta. Samples were obtained using purposive random sampling. Data were collected using posttest value to determine the effect of Science Technology Society (STS) learning and using Student Worksheet to know student ability. The data were analyzed by using ANOVA. The results showed that Science Technology Society (STS) study had significant effect, with a significance value 0,043 (p<0,05). Based on these studies, it can be concluded that the learning Science Technology Society (STS) influential in students’ science process skills.
EVALUASI PERILAKU (CONSUMER BEHAVIOR) PENGGUNA DAN OPERATOR ANGKUTAN UMUM PERKOTAAN Atun, Sri
Warta Penelitian Perhubungan Vol 22, No 12 (2010): Warta Penelitian Perhubungan
Publisher : Sekretariat Badan Penelitian dan Pengembangan Perhubungan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3442.929 KB) | DOI: 10.25104/warlit.v22i12.1159

Abstract

In the context of public transport and urban areas, the main problem faced is traffic congestion. Ihismn be mused m; many things, such as traffic discipline is relatively low, not optimal role has not beenimplemented angktuan general and mass transit in urban areas optimally. Conduct public Searaurban transport users have not shown good discipline. On the other side of the urban public transportavailable was impressed not planned on a needs basis. Type of public transportation in some areascontinue to grow with the reason for fleet renewal, while tlze aging of the existing jl. t is still operating.Condud public transport operators in urban areas seem to find profit without regard to rules that should be applied.
INTEGRASI ANGKUTAN KERETAAPI DENGAN BUS DAMRI DI STASIUN TUGU YOGYAKARTA Lestari, Sri; Atun, Sri
Warta Penelitian Perhubungan Vol 22, No 7 (2010): Warta Penelitian Perhubungan
Publisher : Sekretariat Badan Penelitian dan Pengembangan Perhubungan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7100.148 KB) | DOI: 10.25104/warlit.v22i7.1119

Abstract

Yogi;akarta cihj is one of the tourist cihj and a universihj to11m and a cih; full of culture that hard tobreak, other than within the cih;, as well as tourists from abroad and students wlw want to registersclwols that migrate out of population yogi;aknrtn yogyaknrta with routine e7.1en; Idul Fitri, flockflocked to visit nyeknr fogjaknrtn . One of tile 11zo1ks arf' quite populnr and beazme tlze people's choiceis rail, because beside the railwm; is a mode of mass transit modes of transportation also has someadvantages safe, comfortable, safe and timely when compared with other transportation modes.Yogi;aknrta Tugu station to sen1e several hjpes of rail freight business executives and train withpassengers on auerage each dm; to reach 6.5 t/wusand passengers, especially on big dm;s and weeksand, with the number of passengers, the passengers off the train modes require continued until hereached the final destination, especially passengers wlw headed jogja town with a bus transportationmodes, especially road Oamri. One of tlze expected proficienci; le7.1el in these sulusi overcome theMunicipal Government of Yogi;aknrtn (Yogi;aknrtn Transportation AgenCIJ) with PT. Rnilwm;s andPerum Oamri cooperation provided means of road transport continued until he reached the finaldestination of the integration of rail with bus transportation Oamri.
IDENTIFICATION AND BIOLOGICAL ACTIVITY TEST SOME ISOLATED COMPOUNDS FROM STEM BARK OF MELINJO (GNETUM GNEMON) Atun, Sri; Arianingrum, Retno; Masatake, Niwa
Jurnal Sains Dasar Vol 1, No 1 (2012): April 2012
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (122.897 KB) | DOI: 10.21831/jsd.v1i1.2350

Abstract

Isolation and structure elucidation of two compounds, namely resveratrol (1), and 3- methoxyresveratrol (2) from stem bark of Melinjo (Gnetum gnemon) had been done. The isolation of those compounds was carried out by chromatographyc method and structure elucidation was performed by interpretation of spectroscopic data, including UV, IR,  1H and 13C NMR 1D and 2D, and FABMS. The result of this study showed that activity each compounds as radical hydroxyl scavenger of resveratrol (1), and 3-methoxyresveratrol (2), with an  IC50 45,17 and 60,12; g/ml respectively. Each compound showed significant activity as UV-B protection. Activity test as UV-B protection showed that resveratrol and methoxyresveratrol have maximum protections (SPF 8,03 and 12,34 respectively), each compounds on 50 g/ml. Key word : melinjo; Gnetum gnemon; natural antioxidant; UV-B protection
Students’ curiosity profile in excretion system topic taught using authentic inquiry learning Kasyfi Rifqi Mouromadhoni; Sri Atun; Sabar Nurohman
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol. 5 No. 3 (2019): NOVEMBER
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v5i3.7689

Abstract

Curiosity is a basic important aspect encourages students in finding various information which, in turn, aid them to encompass the concept learnt. This descriptive research aimed at elaborating the curiosity profile of junior high school students in science learning, particularly in excretion system topic who were taught using the authentic inquiry learning. This research was conducted at SMP Negeri 14 Yogyakarta with 32 of eight graders as the subjects. The instrument used was curiosity response questionnaire. The data obtained was analyzed using percentage. The results showed that the average of curiosity achievement obtained was categorized as strong (75%). However, the comparison of implementations between the authentic inquiry learning and the other learning models are needed to get more comprehensive information.
SYNTHESIS GLYCEROL STEARATE OF STEARIC ACID WITH GLYCEROL BY PRODUCT OF BIODISEL FROM USED COOKING OIL Ika Rosdiani; Sri Atun
Jurnal Penelitian Saintek Vol 20, No 1: April 2015
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1386.725 KB) | DOI: 10.21831/jps.v20i1.5605

Abstract

The aim of this research is to synthesis glycerol stearate compound from stearic acid with glycerol by product of biodiesel from used cooking oil, and to determine of product using IR and GC-MS spectroscopy. Method of the research was esterifi cation of glycerol and stearic acid with concentrated HCl as catalyst, by refl uct at 120-160 0C for 8 hours. The result was recrystallized by n hexan. The compound characterized by using IR spectroscopy and GC-MS spectroscopy. The compound has solid form, white to yellowish colour and has 58- 59 0C melting point value with rendement 80.53%. IR spectrum showed the presence C=O carbonil, C-O ester, -OH and C-H aliphatic group. The result of GC-MS analysis showed the compound which have synthesized has similarities with glycerol 2-monostearate with similarity index (SI) of 88% with a purity of 98,94%.
TEST OF ACTIVITY OF BIOACTIVE COMPOUNDS IN EXTRACT FRACTION METHANOL SARGASSUM SP (ALGA CHOCOLATE) AS ANTI HEPATOTOKSIK Nurfina Aznam; Sri Atun; Susila Kristianingrum
Jurnal Penelitian Saintek Vol 6, No 1: Saintek 2001
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7607.001 KB) | DOI: 10.21831/jps.v6i1.5564

Abstract

The objectives  of this  research  are  to  identify  whether  the  bioactivecompound of methanol fraction  extracts of Sargasum sp can be used as anti hepatotoxic and to determine the dose of such compound in order that  it  may  be  used as anti hepatotoxic.  The population  used  in  this research was 2-month male white rats with almost similar weight. 39 rats were  taken for  the samples.  Treating  CCl4  injection carried   out  the bioactive compound activity test and the treatment of these compound extracts was observed by examining the liver cell damage microscopically and analyzing the GPT content. Examination was a/so conducted to the control rats (without CCI4  injection and bioactive compound treatment). From the result of the research it can be concluded that methanol fraction extract of Sargasum sp may be used as anti hepatotoxic. It wasfound  that the bioactive compound activity appeared at the dose of 500 mglkg of weight with 5 times treatments.
PEMBUATAN DAN KARAKTERISASI NANOPARTIKEL EKSTRAK ETANOL TEMU KUNCI (Boesenbergia pandurata) PADA BERBAGAI VARIASI KOMPOSISI KITOSAN Dessy Kurniasari; Sri Atun
Jurnal Sains Dasar Vol 6, No 1 (2017): April 2017
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (461.388 KB) | DOI: 10.21831/jsd.v6i1.13610

Abstract

Tujuan penelitian ini adalah untuk membuat dan mengetahui karakteristik nanopartikel dari ekstrak etanol temu kunci (Boesenbergia pandurata) dan rasio optimal variasi konsentrasi kitosan dan NaTPP dalam pembuatan nanopartikel temu kunci.            Pembuatan ekstrak temu kunci (Boesenbergia pandurata) menggunakan metode maserasi menggunakan etanol teknis 96% dilanjutkan evaporasi hingga terbentuk ekstrak kental temu kunci. Koloid nanopartikel dibuat dengan mencampurkan ekstrak temu kunci dalam etanol p.a, akuades, larutan kitosan dalam asam asetat glasial, dan larutan NaTPP. Ada 9 variasi komposisi antara larutan kitosan dan  NaTPP yakni rasio (5:1); (10:1); (15:1); (20:1); (3,33:1); (8:1); (9:1); (11:1); dan (12:1). Padatan dalam koloid nanopartikel dipisahkan dengan cara sentrifugasi. Endapan yang didapatkan disimpan dalam freezer. Koloid nanopartikel yang terbentuk dikarakterisasi menggunakan Particle Size Analyzer (PSA) dan Zeta Sizeruntuk mengetahui ukuran partikel dan nilai zeta potensial. Padatan yang didapatkan dari proses sentrifugasi selanjutnya dikarakterisasi menggunakan Scanning Electron Microscopy (SEM) untuk mengetahui kondisi morfologi padatan tersebut. Karakterisasi dengan KLT pada padatan yang didapatkan bertujuan untuk mengetahui kesamaan kandungan senyawa antara ekstrak etanol temu kunci dan ekstrak etanol temu kunci dalam sediaan berukuran nano.            Koloid nanopartikel yang telah dibuat berwarna kuning dan setelah di sentrifugasi terbentuk padatan berwarna kuning kecokelatan. Karakterisasi menggunakan PSA menunjukkan ukuran partikel pada rentang 389-877 nm sebanyak 98,1% pada rasio konsentrasi kitosan dan NaTPP = (8:1). Nilai rerata zeta potensial adalah 41,87 mV. Hasil foto SEM menunjukkan morfologi partikel yang memiliki permukaan yang tidak rata. Rf keenam sampel menunjukkan hasil bahwa senyawa yang terkandung dalam ekstrak etanol temu kunci maupun ekstrak etanol temu kunci dalam sediaan nanopartikel adalah sama. Kata Kunci : kitosan, NaTPP, ekstrak etanol temu kunci, KLT, SEM, PSA, zeta sizer
MODIFICATION POLISAKARIDA GALAKTOSA SULPHATE EXTRACTION EXPORT FROM GRACILARIA SP (ALGA MERAH) WITH ALKALI BOROHIDRIDA Sri Atun
Jurnal Penelitian Saintek Vol 6, No 1: Saintek 2001
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6138.235 KB) | DOI: 10.21831/jps.v6i1.5277

Abstract

The   objective   of   the   study   is   to  modify   the   sulphate   galactanspolysaccharide  (gelatine) provided from  extraction of Gracilaria sp with borohydride  alkali and  its result  characterization.  The sample  of  this study   was   the   sulphate   galactans   polysaccharide   provided   from extraction of Graci/aria sp. The modified reaction using the Rees method used  NaBH4 and  NaOH  in  various  compositions.  The physical   and chemical characteristics of the modification reaction results were compared to the characteristics of the seaweed gelatine provided from the extraction before the treatment and agarosa p.a.  The result of this study indicates that the sulphate galactans polysaccharide can be modified by borohidrida alkali reagent in base condition at the composition variations of the seaweed gelatine:   NaBH4 : NaOH =  1:  0,5 : ] ; 1 : 1 : 2  and 1:   2  :   4  .The  characterization  showed  that  the  compound  of  the modification reaction result compared to the sulphate galactans polysaccharide   before  the  treatment  indicated  the  change  of  their physical   and   chemical   characteristics.   The   characteristics   of   the compound  resulted from   modification  reaction  of  sulphate  galactans polysaccharide  at the composition variations of the seaweed gelatine: NaBH4 : NaOH  = 1 :  1 : 2 and 1 : 2 : 4 were almost similar  to the characteristics of agarosa p. a.
Co-Authors Abas Susilo Agusta, Fauji Alfin, Riandi Althaaf, Nabila Tsabita Alya Rizkita Irwan Anak Agung Gede Sugianthara Anna Rakhmawati Anugrah Anang Respati Apriani, Nuni Arifudin Idrus Astuti Lestari Azeeza, Sabira Nurul Azizah, Fidasari Nur Bian Ihda An Naila Buhera, Rusdiman Darmono Dessy Kurniasari Dewi ANGGRAENI Dewi Anggraini Dini, Naffa Afkarina Izzata Elmi Royani Erlina Erlina Fajar Naqsyahbandi Fapriyan Wijoyo Mulyopratikno Heru Kuswanto Hurrahman, Mifta Ika Rosdiani Indah Puspita Sari, Mega Insih Wilujeng Kasyfi Rifqi Mouromadhoni Latifah Kurnia Devani Luthfia Ulva Irmita M. Agung Satriya Maemonah, Maemonah Masatake Niwa Mizzan Ayubi Mouromadhoni, Kasyfi Rifqi muhamad arif nur rokhman Muhammad Ikhsan Mukti Syarifah Mulyopratikno, Fapriyan Wijoyo Nadiya Fitri Anisa Naqsyahbandi, Fajar Nelly Fadliyani Ni Putu Laksmi Cintya Dewi, Ni Putu Laksmi Cintya Nida Qurbaniah Juhara Niwa Masatake Nova Irawati Simatupang Nova Irawati Simatupang, Nova Irawati Nur Aini Purnamaningsih Nurfina Aznam Pamungkas, Oky Rahman, Nanang Rayasari, Fitrian Retno Arianingrum RISHA KURNIA DWI HARTANTI S. Senam Sabar Nurohman Sabar Nurohman Sangal, Aditi Sarip, Muhamad Senam Senam Simbolon, Doly siswanti ningsih Siti Aisyah SITI NUR'AINI Sitorus, Patar Ariyanto Sogen, Jasintah Tagan Suhartati, Ika Sujangka, Arsyad Sukmawati, Agatha Suryadi Prasetyo Susila Kristianingrum Suyanta Suyanta Tia Rachmatika Wahyuni Tien Aminatun Unayah, Habibatul Vegha Dwi Arthamena Yasaroh, Sabila