Garuda - Garba Rujukan Digital

INCLINATION ANALYSIS OF STUDENT CAPABILITIES IN PROMISED TEACHERS OF THE LEARNING INDEPENDENCE PERSPECTIVE: EXPLORATION STUDY Hidayati, Siti Nurul; Subekti, Hasan; Dasna, I Wayan; Wonorahardjo, Surjani; Munzil, Munzil; Nurkholis, Nurkholis
Jurnal Penelitian Pendidikan IPA Vol 4, No 1 (2019): Juni 2019
Publisher : Perkumpulan Pendidik IPA Indonesia (PPII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppipa.v4n1.p1-7

Capabilities include competence, self-efficacy; self-confidence; self-discipline; to be responsible; self-initiative; and metacognition and what someone will bring to the workforce. This research strives to analyze the capability preferences of the prospective teacher in terms of learning independence. This descriptive study uses learning methods. Participants in this research were 21 students from the State University in East Java using purposive sampling techniques. The probing question is used as a research instrument. Descriptive data analysis. The consequences of data analysis explained that the ability in the aspect of high score learning skills was 85.4% responsible, 84.1% confidence, and 82.5% self-discipline. The conclusion of this study is the efficacy of the prospective student teacher from the perspective of independence learning shows the quality in the aspects of responsibility, self-confidence, and self-discipline. Nevertheless, the representative of self-establishment shows a lower trend correlated to other guidelines as much as 79.5%, or in other words, the meaning of participants is not optimum concerning their own desire for independence. This study reserves the need for further investigation into efforts to enhance the ability of prospective student teachers in higher education in theoretical and practical examinations.Keywords: Capabilities, Exploration, Learning independence, Promised teachers

INCLINATION ANALYSIS OF STUDENT CAPABILITIES IN PROMISED TEACHERS OF THE LEARNING INDEPENDENCE PERSPECTIVE: EXPLORATION STUDY Hidayati, Siti Nurul; Subekti, Hasan; Dasna, I Wayan; Wonorahardjo, Surjani; Munzil, Munzil; Nurkholis, Nurkholis
Jurnal Penelitian Pendidikan IPA Vol 4, No 1 (2019): Juni 2019
Publisher : Perkumpulan Pendidik IPA Indonesia (PPII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppipa.v4n1.p1-7

Capabilities include competence, self-efficacy; self-confidence; self-discipline; to be responsible; self-initiative; and metacognition and what someone will bring to the workforce. This research strives to analyze the capability preferences of the prospective teacher in terms of learning independence. This descriptive study uses learning methods. Participants in this research were 21 students from the State University in East Java using purposive sampling techniques. The probing question is used as a research instrument. Descriptive data analysis. The consequences of data analysis explained that the ability in the aspect of high score learning skills was 85.4% responsible, 84.1% confidence, and 82.5% self-discipline. The conclusion of this study is the efficacy of the prospective student teacher from the perspective of independence learning shows the quality in the aspects of responsibility, self-confidence, and self-discipline. Nevertheless, the representative of self-establishment shows a lower trend correlated to other guidelines as much as 79.5%, or in other words, the meaning of participants is not optimum concerning their own desire for independence. This study reserves the need for further investigation into efforts to enhance the ability of prospective student teachers in higher education in theoretical and practical examinations.Keywords:Â Capabilities, Exploration, Learning independence, Promised teachers

Chemical Cues in Tritrophic Interaction on Biocontrol of Insect Pest Nurindah Nurindah; Surjani Wonorahardjo; Dwi Adi Sunarto; Sujak Sujak
The Journal of Pure and Applied Chemistry Research Vol 6, No 1 (2017): Edition of January - April 2017
Publisher : Chemistry Department, The University of Brawijaya

Tritrophic interaction among host plant-herbivore-parasitoid involves chemical cues. The infested plant by herbivores has been reacted to produce volatiles which is a cue used by the herbivore parasitoids for host location. These volatiles can be developed to enhance natural control of insect pests, especially by optimally use of parasitoids. Egg parasitoids are biocontrol agents that play an important role in natural control of herbivores. This research used a tritrophic interaction model of rice plant-brown plant hopper (BPH)-egg parasitoid of BPH. Research on analysis of chemical cues in tritrophic interactions was aimed to identify volatiles that are used by the parasitoid to find its host. The volatiles that effectively affect the parasitoid orientation behavior could be developed into a parasitoid attractant. Extraction of volatiles as the egg parasitoid cues was done using soxhlet, and identification of the volatiles using Gas Chromatography-Mass Spectrometry (GC-MS). Bioassay of the volatiles on the BPH parasitoid orientation behavior was performed using Y-tube olfactometry. The volatiles that are used for host location cues by the parasitoid affect the parasitoid orientation behavior by showing the preference of the parasitoid females to the odor of volatile. Volatiles extracted from BPH-egg-infested plants and uninfested plants contain alcohol, hydrocarbon, and ester compounds. Based on the difference of the compound composition of both extractions, five compounds of long-chain hydrocarbon, both branched and unsaturated compounds are the main volatile components which caused positive orientation behavior of the egg parasitoid. The egg parasitoids showed positive behavior orientation toward the volatiles extracted from BPH-egg-infested plant. Those hydrocarbon compounds are potential materials to be developed into bio attractants of BPH egg parasitoid.

Surface Behavior of Rhodamin and Tartrazine on Silica-Cellulose Sol-Gel Surfaces by Thin Layer Elution Surjani Wonorahardjo; Anugrah Ricky Wijaya; Suharti Suharti
The Journal of Pure and Applied Chemistry Research Vol 5, No 2 (2016)
Publisher : Chemistry Department, The University of Brawijaya

Physical and chemical interactions are the principles for different types of separation systems as the equillibrium dynamics on surface plays a key-role. Surface modification is a way for selective separation at interfaces. Moreover, synthesis of gel silica by a sol-gel method is preferred due to the homogeneity and surface feature easily controlled. Cellulose can be added in situ to modified the silica features during the process. Further application for to study interaction of rhodamin and tartrazine in its surface and their solubilities in mobile phase explains the possibility for their separation. This paper devoted to evaluate the surface behavior in term of adsorption and desorption of tartrazine and rhodamin on silica-cellulose thin layer in different mobile phase. Some carrier liquids applied such as methanol, acetone, n-hexane and chloroform. The result proves tartrazine and rhodamin is separated and have different behavior in different mobile phase. The retardation factors (Rf) of the mixtures suggest complexity behavior on silica-cellulose surface.

PENGARUH STRATEGI PEMBELAJARAN PRAKTIKUM SIFAT KOLIGATIF TERHADAP HASIL BELAJAR SISWA KELAS XII Muhammad Hubbi; I Wayan Dasna; Surjani Wonorahardjo
EduChemia (Jurnal Kimia dan Pendidikan) Vol 2, No 1 (2017): Available Online in January 2017
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Abstract: The process of learning colligative properties have tend to learn chemistry as a product so that students have difficulty understanding this topic. Guided inquiry-based learning laboratory is a learning strategy that can accommodate chemistry learning as product and process. This research aims to know the effect of practice learning strategy based on guided inquiry to the instructional result of year 12 of science of MA Ma’arif 7 Lamongan on the topic of colligative properties of solution. The instructional result is the score from a report of practice result and written test. The subject of this research is 34 students of 12-E IPA class of MA Ma’arif 7 Lamongan in the academic year 2015-2016. The research design that used is the one group pretest-posttest. The research instruments used written test and observation checklist. The written test measured the result of validated instrcution before it is used and has reliability 0,802. The obtained data then was analysed with a descriptive analysis and different test. The different test used t-paired test. Paired t-test results obtained sig 0,000 which is smaller than 0.05 so H0 is rejected by 95% reliability. Based on these results it can be concluded that there was significant improvement of learning outcomes using laboratory procedures of colligative properties. The average value of student learning outcomes was increased from 61.05 into 81.44. This increase showed that the practice learning based on guided inquiry had a good level of effectiveness.Abstrak: Proses pembelajaran materi sifat koligatif cenderung hanya mempelajari kimia sebagai produk sehingga siswa mengalami kesulitan dalam memahami topik ini. Pembelajaran praktikum berbasis inkuiri terbimbing merupakan strategi pembelajaran yang dapat mengakomodasi pembelajaran kimia sebagai produk dan proses. Penelitian ini bertujuan untuk mengetahui pengaruh strategi pembelajaran praktikum berbasis inkuiri terbimbing terhadap hasil belajar siswa kelas XII IPA Madrasah Aliyah Ma’arif 7 Lamongan pada materi sifat koligatif larutan. Hasil belajar berupa nilai yang berasal laporan hasil praktikum dan tes tulis. Subyek penelitian ini adalah 34 siswa kelas XII-E IPA Madrasah Aliyah Ma’arif 7 Lamongan tahun pelajaran 2015-2016. Rancangan penelitian yang digunakan adalah the one group pretest-posttest. Instrumen penelitian menggunakan tes tulis dan lembar observasi. Tes tulis untuk mengukur hasil belajar divalidasi sebelum digunakan dan memiliki reliabilitas 0,802. Data yang diperoleh selanjutnya dianalisis dengan analisis deskriptif dan uji beda. Uji beda menggunakan uji t-paired. Hasil uji-t berpasangan diperoleh sig 0,000 yang berarti lebih kecil dari 0,05 sehingga H0 ditolak dengan reliabilitas 95%. Berdasarkan hasil tersebut dapat disimpulkan bahwa terdapat peningkatan hasil belajar yang signifikan pada pembelajaran praktikum dengan menggunakan prosedur praktikum sifat koligatif larutan. Nilai rata-rata hasil belajar siswa meningkat dari 61,05 menjadi 81,44. Peningkatan ini menunjukkan pembelajaran praktikum berbasis inkuiri terbimbing memiliki tingkat efektivitas yang baik.

SINTESA HYDROXYAPATITE (Ca10(PO4)6(OH)2) BERBASIS BATU KAPUR Mailinda Ayu Hana Margareta; Abdulloh Fuad; Siti Alfiah Ilmiawati; Surjani Wonorahardjo
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 5 No. 1 (2015)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v5n1.p15-20

Telah dilakukan penelitian tentang sintesa Hydroxyapatite (Ca10(PO4)6(OH)2) menggunakan Batu gamping atau yang disebut dengan batu kapur. Batu kapur selain dimanfaatkan sebagai bahan bangunan juga dapat dimanfaatkan sebagai bahan dasar dalam pembuatan Hydroxyapatite yang dapat digunakan sebagai tulang buatan. Batu kapur yang kandungan utamanya adalah kalsium dalam bentuk CaCO3 dapat digunakan sebagai bahan dasar pembuatan Hydroxyapatite yang digunakan sebagai sumber kalsium. Dalam pembuatan Hydroxyapatite sumber utama yang dibutuhkan adalah Ca dan P. Dalam pembuatan Hydroxyapatite batu gamping dilarutkan terlebih dahulu dengan air. Batu gamping yang diperoleh kemudian ditambahkan HNO3. Larutan yang diperoleh ditambahkan Diamonium Hydrogen Phosphate sebagai sumber P dan dalam prosesnya kondisi dijaga dalam keadaan basa. Hasil yang diperoleh dilakukan variasi pH dan variasi suhu pemanasan yang kemudian dianalisis dengan XRD dan XRF. Hydoxyapatite yang diperoleh memiliki pH optimal dalam pembuatannya yaitu pada pH10 yang dilihat dari hasil analisis menggunakan High Score Plus dari hasil XRD yang memiliki score 22. Dalam variasi suhu pemanasan, kondisi pembuatan digunakan pH 10 dan dari hasil yang diperoleh suhu optimum dalam memanaskan hasil Hydroxyapatite adalah suhu 700°C selama 3 jam dengan score 49 yang hampir mirip dengan Hydroxyapatite sintetik yang memiliki score 59.

MENJELAJAH ALAM SEBUAH RENUNGAN FILOSOFIS TENTANG SAINS Surjani Wonorahardjo
Studia Philosophica et Theologica Vol 3 No 2 (2003)
Publisher : Litbang STFT Widya Sasana Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35312/spet.v3i2.140

The achievement of modern science discovered many aspects of the nature that give the ability to reflect deeply to the root of our existence. Dynamics plays a crucial role in micro scale of object, and according to the Heisenberg principle, the exactness of the small object can be expressed only by probabilities. The nature of small objects can also be the main constituent of the bigger object in nature. This makes the stability of bigger objects to a certain extent depends on the microscale´s nature. Along with the progress in science, philosophy shitfts the direction of its topics. Subjectivity comes forwards but the objectivity is not put aside. These two alternate during the time as the consciousness plays ist role. The beauty of nature is then seen more and more clearly, in „order“ as well as in „chaos“. The micro nature is the new subject in science, and fenomenology in post modernism is also the field of today´s philosophy.

DILEMA DETERMINISME MANUSIA: Sebuah Perjalanan Reflektif Sains Surjani Wonorahardjo
Studia Philosophica et Theologica Vol 2 No 2 (2002)
Publisher : Litbang STFT Widya Sasana Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35312/spet.v2i2.155

The development of science and technology cannot be excluded from the human thinking in modern world. One of the major problem which echo comes and goes along the time is the what so called "dilemma of determinism", which is also associated inclusively to the problem of God's existence. Natural science brings a deep implication in thinking leading to determinism of human being as a part of the nature and moves together with the natural processes, that flows according to the natural laws without human decision. But modern science which development is accelerated by the combination of concepts in physics, chemistry and computer, explains that the previous natural laws do not apply in micro systems and the quantum mechanics takes over to rule the behavior of elementary particles in atomic scale. Then modern concepts in science aroused: chaos, complexity, dissipative structure, fractal, which speak about irregularity, unpredictability, then a causality of things that rooted deeply from the microscale dynamics, are expected to be one way out which provides a "chance" which in turn still offers a place for human freedom.

INCLINATION ANALYSIS OF STUDENT CAPABILITIES IN PROMISED TEACHERS OF THE LEARNING INDEPENDENCE PERSPECTIVE: EXPLORATION STUDY Siti Nurul Hidayati; Hasan Subekti; I Wayan Dasna; Surjani Wonorahardjo; Munzil Munzil; Nurkholis Nurkholis
JPPIPA (Jurnal Penelitian Pendidikan IPA) Vol. 4 No. 1 (2019): Juni 2019
Publisher : Universitas Negeri Surabaya in collaboration with Perkumpulan Pendidik IPA Indonesia (PPII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jppipa.v4n1.p1-7

Capabilities include competence, self-efficacy; self-confidence; self-discipline; to be responsible; self-initiative; and metacognition and what someone will bring to the workforce. This research strives to analyze the capability preferences of the prospective teacher in terms of learning independence. This descriptive study uses learning methods. Participants in this research were 21 students from the State University in East Java using purposive sampling techniques. The probing question is used as a research instrument. Descriptive data analysis. The consequences of data analysis explained that the ability in the aspect of high score learning skills was 85.4% responsible, 84.1% confidence, and 82.5% self-discipline. The conclusion of this study is the efficacy of the prospective student teacher from the perspective of independence learning shows the quality in the aspects of responsibility, self-confidence, and self-discipline. Nevertheless, the representative of self-establishment shows a lower trend correlated to other guidelines as much as 79.5%, or in other words, the meaning of participants is not optimum concerning their own desire for independence. This study reserves the need for further investigation into efforts to enhance the ability of prospective student teachers in higher education in theoretical and practical examinations.Keywords: Capabilities, Exploration, Learning independence, Promised teachers

Optimasi pH dan Konsentrasi Elektrolit dalam Elektrokoagulasi Limbah Surfaktan Hanumi Oktiyani Rusdi; Surjani Wonorahardjo; Yudhi Utomo; Anugrah Ricky Wijaya
JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Vol 4, No 1 (2020)
Publisher : State University of Malang or Universitas Negeri Malang (UM)

Surfactants are organic materials that act as active ingredients in detergents, soaps and shampoos which can reduce the surface tension of the water so that the particles attached to the materials being washed are released and float or dissolved in water thus polluting the environment. Therefor it is necessary to separate or change them into other harmless materials before being discharged into the environment. One of the methods used is electrocoagulation. The electrocoagulation method is an environmentally friendly method of treating liquid waste by combining the principles of coagulation, flotation and electrochemistry. In this study, the electrocoagulation method was carried out by varying pH and electrolyte concentrations in the simulated surfactant waste treatment. Surfactant levels were determined by spectrophotometer in methylene blue. The optimization of the method is done by determining the maximum absorption length, optimum pH, and the effect of adding electrolytes with different concentrations. The results showed that the maximum absorption at a wavelength of 659 nm. The electrocoagulation process runs optimally at pH 2 with the addition of 7mM Na2SO4 electrolyte resulting in a% removal of 65%.

Title

Found 26 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 26 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 26 Documents
Search