cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Abdulah, S.Si., M.Si
Contact Email
abdoel71@gmail.com
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota pekanbaru,
Riau
INDONESIA
Jurnal Pilar Sains
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Mathematics Physics
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue " Vol 2, No 02 (2003)" : 7 Documents clear
Parameter Ambang Dalam Regresi Wavelet Suanto, Elfis
Jurnal Pilar Sains Vol 2, No 02 (2003)
Publisher : Jurnal Pilar Sains

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

Abstract

Considered a regression model yi=f (ti)+ei ,i= 1,2 ,3 ,....,n where ei assumed iid N(0, ). To found the best estimator of fungtion f in regression waveletswill be associated with chosen threshold parameter t. The Cross-Validation method is a goodto choose the parameter t.
Penerapan Pembelajaran Yang Dari Pemberian Soal Cerita Pada Siswa Kelas I SLTPN Kecamatan Banuhampu Sungai Puar Heleni, Susda
Jurnal Pilar Sains Vol 2, No 02 (2003)
Publisher : Jurnal Pilar Sains

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

Abstract

Developing students skill in solving story-based question is one of infortant objectives mathematics teaching atschool, since such story-based question will upgrade student’s ability in problem solving. Problem solvingability should be possed by students, because through this activity student are expected to understandmathematic materials well, and indirectly the creativity of students can be attracted. In fact, during learningprocess is undergoing, most students find it difficult answering story-based question. On other hand, if thequestion not based on stories, they can answer perfectly. Besides that teachers conjess that they rarely give andteach story-based question for such questionsplaced at last number and teacher are unexperienced on how tosolve the questions. Therefore, class action research is badly needed to increase student learning result basesdon story-based question learning. By doing so, giving story-based question refering to the daily students willgive much attention the use and benefit of mathematics. It stand to reson students will give much attentiontoward the leaning process that will give positive effect toward their learning outcome. The result in thisresearch is learning with started with giving the essay that can increase the studying result of the 1st classstudent in SLTPN at the subdistrict Banuhampu Sungai Puar in Period 2000/2001
Aplikasi Metoda Geolistrik Konfigurasi Wenner-Alpha Untuk Eksplorasi Batubara Farma, Rakhmawati
Jurnal Pilar Sains Vol 2, No 02 (2003)
Publisher : Jurnal Pilar Sains

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

Abstract

Geoelectrical method uses variation of resistivity values to study subsurface geology structure, thereforeit can be applied to explore groundwater, pollution of groundwater, and geothermal exploration. In thisstudy, a physical modeling was built in the laboratory, that is used to resistivity measurement on coalsamples. The measurements employ Wenner-Alpha configuration. The result of the tests show that coallayer can be detected based on resistivity variation. The semi-antharasite sample showed higherresistivity than bituminous sample. This result is in accondance with the fact that semi antharsite drierthan bituminous sample.
Pengaruh Temperatur Growth Terhadap Morfologi dan Laju Growth Film Tipis Gallium Antimony yang Ditumbuhkan dengan MOCVD
Jurnal Pilar Sains Vol 2, No 02 (2003)
Publisher : Jurnal Pilar Sains

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

Abstract

Undoped galliumantimony apitexiallayers were grown on(100) GaAs substrstes by vertical reactor metal organicchemical vapor deposition. The tridimenthylaminoantimony/trimethylgallium mole fraction (V/III ratio) wasconstant at 2.0 and the growth temperatures were varied 5200C-5400C. The growth pressure in this research wasabout 60 torr. Purified hydrogen was used as gas carrier. By using scanning electron microscope, it was found thatsurface morphology and the growth rate of the layers were strongly depend on growth temperatures. The optimalgrowth temperature in this research was observed at 5400C with more good morphology than the others andhighest growth rate, 1.7 m/h.
Energi dan Saling Ketergantungan dalam Suatu Ekosistem Suatu Pengembangan Perangkat Pembelajaran Terpadu Tipe Connected di SLTP 21 Surabaya Yenni, Ervi
Jurnal Pilar Sains Vol 2, No 02 (2003)
Publisher : Jurnal Pilar Sains

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

Abstract

The comprehension of learning sciences (IPA) connected type in senior high school (SLTP) 21 Surabayapurposes to describing as follows: (1) The activities of teacher and students, (2) The abilities of teacher onlearning management, (3) Students Respons to learning proses, (4) Evaluation student Result after attendinglearning Process (KBM) IPA type connected. Data observation had been done during 5-19 May 2001. Theresearch result showed teather activities in KBM increasing significantly, Student respons to KBM wasinterested in continuing the lessons. The proportion of answer-question is right encrising from 0.23 to 0.92.The conclusion of research is connected type.
Isolasi Streoid Dari Fraksi Etil Asetat Hedyotis Philippensis
Jurnal Pilar Sains Vol 2, No 02 (2003)
Publisher : Jurnal Pilar Sains

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

Abstract

Chemical constituent has been isolated from the dry acrial parts of Hedyotis philippensis. The finely choppedmaterial was bextracted with methanol then fractionated into different polarity of solvent; hexane, ethilacetate and buthanol. Needled colorless (Melting point 140-1420C) has been isolated from Ethil acetatefraction and based on its spectroscopic data particularly IR (Infra red) and ‘H-NMR (Proton of NuclearMagnetic Resonantion), it is identified as stigmasterol.
Kajian Inbreeding Terhadap Fenotip Lalat Buah (Drosophila sp) Tipe Liar
Jurnal Pilar Sains Vol 2, No 02 (2003)
Publisher : Jurnal Pilar Sains

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

Abstract

The purpose of this research is to examine the effect and heritability inbreeding to fruit fly phenotype(Drosophila sp) in wild type. This research works on July – September 2001 in laboratory Biologic FKIPUNRI Pekanbaru. Design used completely randomized design consist of 5 mating patterns: outbreeding(P0), ful sib (P1) half sib (P2), uncle naice (P 3) and parent offspring mating patterns (P4) with 3 replication.The phenothype with observation: population, viability, abdomen lengh and wing lengh. The phephenotypes were analized using ANOVA with Duncan’s Multiple Rang Test (DMRT) the viability of thetest was 5% and genetics analysis regresi Strickberger 1962. The result of this research showed that effectinbreeding with mating pattern variance significant to phenotype all. Reduction highly occurred at parentoffspring mating pattern. Heritability inbreeding varience to phenotype all. Heritability highly occurred athalf sib mating pattern.

Page 1 of 1 | Total Record : 7

 1 

Filter by Year

2003 2003


Reset
Filter By Issues
All Issue Vol 11, No 01 (2011) Vol 7, No 2 (2008) Vol 7, No 1 (2008) Vol 6, No 02 (2007) Vol 5, No 01 (2006) Vol 4, No 01 (2005) Vol 2, No 02 (2003)