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 8 Documents
 1 
Search results for , issue " Vol 6, No 02 (2007)" : 8 Documents clear
EFEKTIFITAS PENERAPAN STRATEGI PEMBELAJARAN QUANTUM TEACHING DALAM TATANAN KOOPERATIF TIPE STAD PADA PEMBELAJARAN MATEMATIKA KELAS VIII-2 SMPN 29 PEKANBARU Ritonga, Zulfan
Jurnal Pilar Sains Vol 6, No 02 (2007)
Publisher : Jurnal Pilar Sains

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

Abstract

The purpose of this research is to improve the effectiveness of learning through the application oflearning strategies in the teaching of quantum order type STAD cooperative learning. Implementation ofthis strategy refers to (1) determination of the action plan; (2) the actions of the application of quantumteaching strategies in order STAD cooperative type, (3) observation of teacher and student activities, and(4) to reflect on the effectiveness of implementation strategies learning. This course consists of two cyclesof meetings 3 times per cycle. The data collected in this study is the observation and data on learningoutcomes. Data on teacher and student activities, and classroom atmosphere using observation sheets andquestionnaires. While studying the results of data obtained through daily tests test each completed onecycle. Data analysis used descriptive statistical analysis. Based on research results during the cycle I andcycle II shows the effectiveness of the application of teaching learning strategies in order quantumcooperative learning can improve teacher and student activities, improve student learning outcomes, andclassroom atmosphere for the better.Keywords: Effectiveness, Quantum Teaching, Learning Cooperative Type STAD
SISTEM PAKAR UNTUK MENENTUKAN ALTERNATIF KEPUTUSAN MENGGUNAKAN METODE EXPECTED PAY OFF (EP) DAN EXPECTED LOSS (EL) Risanto, Joko
Jurnal Pilar Sains Vol 6, No 02 (2007)
Publisher : Jurnal Pilar Sains

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

Abstract

Decision making basically is choose an alternative. Chooses a decision often bewilders because variousfactors between it. firstly, lack of information causing height of Un-expected Value and second, plenty ofconsideration that causes choice taken is irrational. in general, wrong decision can cause imprecise action andgenerates loss. Some mathematical models has been developed to calculate and analyses every choice indetermining a decision. one of them is Expected Pay Off and Expected Loss mehod. manually that methodwould be difficult and needs time to calculate. Therefore need to exploit ability of computer to calculatequickly and gives objectively and rational solution to userfirst step of this systems development is by mapping mathematically number of alternatives which will beselected and advantage value percentage or loss from every the alternative. hereinafter every value is input tocomputer and processed applies mathematical equation :EP will be calculated repeatedly and compared to every result of its. the expected information from thissystem is an an alternative Information that is most rational for user. The Result indicates that theapplication of competent this and can be applied.Keywords : Expected loss, Expected Pay Off, Decision making.
STEGANOGRAFI DENGAN METODE PENGGANTIAN LEAST SIGNIFICANT BIT (LSB)
Jurnal Pilar Sains Vol 6, No 02 (2007)
Publisher : Jurnal Pilar Sains

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

Abstract

Steganography is the art and science of writing hidden messages in such a way that no one, apartfrom the sender and intended recipient, suspects the existence of the message. Least Significant Bit method (LSB) is one of steganography method to hiding data by changing bit LSB in segment of image with secretdata bit. The changing image can be applied without humanly visible degradationKeywords : Image, Least Significant Bit,, Steganography, degradation.
UJI PENGOLAHAN CRUDE OIL CONTAMINATED SOIL DENGAN UREA DAN TSP UNTUK PENURUNAN TPH
Jurnal Pilar Sains Vol 6, No 02 (2007)
Publisher : Jurnal Pilar Sains

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

Abstract

A research of crude oil contaminated soil (COCS) by addition urea and TSP for decreasing Total PetroleumHydrocarbon (TPH). The research consist of three steps (1) Biodegradability assessment (2) BioavailabillityAssessment (3) Prelimanary Confirmation.The result showed that TPH of COCS was able to decrease until 3.722% with using 35 g Urea/14 kgCOCS. Added liquid urea better than solid urea.Key Words: COCS, Total Petroleum Hydrocarbon
KAJIAN KECEPATAN PERKECAMBAHAN KENERAK MENGGUNAKAN HORMON 2,4-D DAN BAP SECARA IN VITRO (The Study of Germination Rapids on Kenerak using 2,4-D and BAP hormones by in vitro methods) Mahadi, Imam
Jurnal Pilar Sains Vol 6, No 02 (2007)
Publisher : Jurnal Pilar Sains

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

Abstract

Kenerak (Goniothalamus umbrosus) is one species from genus of Goniothalamus and becomes sources ofimportant traditional medicines among local people in Southeast Asia.Goniothalamus plants areconsidered to have great sources of pharmaceuthecial substances. The goniothalamine has a function bothas an anti breast cancer agent and as an abortive agent for early pregnancy. Based on this the preliminarystudies was carried out on germination rapids of kenerak using seed explants showed that best result forgermination rapids on MS A4 (0,5 mg/l 2,4-D) medium after 3-8 weeks culture and totals germination onE6 (2,0 mg/l 2,4-D + 0,5 mg/l BAP) medium 80%. Compered convensional methods is very long timeabout 6-12 moons. In vitro technique can be used for overcoming dormancy seeds of kenerak.Key words: Kenerak, 2,4-D, BAP, Seed .
KONSENTRASI AQUIFER DI ATAS TEROWONGAN KARETA API SASAKSAAT PADALARANG KABUPATEN BANDUNG DENGAN METODA GEOLISTRIK Z, Fakhruddin
Jurnal Pilar Sains Vol 6, No 02 (2007)
Publisher : Jurnal Pilar Sains

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

Abstract

Expression process of under earth surface can be done variosly, one method used is resistivities methodwhich can be used in geothermal exploration, geotechnical application, ancient object seeking, seeking ofground water and others. Saturated water zone determination the above tunnel sasaksaat PadalarangBandung Regency very need, this matter done to know distribution aquifer and earth coat resistivitiesabove tunnel Sasaksaat. This research use Wenner-Schlumberger method with two trajectory direction,that is vertical trajectory of tunnel and unidirectional of tunnel. Obtained some saturated water zone, thisarea have very low resistivities. Generally each trajectory have saturation water point, among other thingsat straighten trajectory, trajectory 1 at 75 meters, trajectory 2 at 80 meters and trajectory 3 at 50 meterspoint. Each +- 10 meters depth from surface since near surface trajectory 3. Unidirectional trajectory mostsaturated water zone point 430 meter with deepness +-25 meters from surfaceKey word : Geoelektical Study, Wenner-Schlumberger method
PEMBERIAN TUGAS MEMBUAT RINGKASAN SEBELUM DAN SETELAH PEMBELAJARAN UNTUK MENCAPAI KETUNTASAN BELAJAR MAHASISWA PADA MATA KULIAH KIMIA FISIKA I Erna, Maria; Rery, R. Usman
Jurnal Pilar Sains Vol 6, No 02 (2007)
Publisher : Jurnal Pilar Sains

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

Abstract

Evaluation of students learning result at department of Chemistry educationFKIP Riau University on 1st Physical Chemistry subject is not reliable yet. It occursbecause students are not ready in lecture caused by less knowledge. It is necessary todevelop ad improve learning quality on this subject by giving task of doing summarybefore and after lesson. Subject of this research is student in 1st Physical Chemistry classon even semester 2006/2008. There are 32 student in this class. From summary sheetsbefore lesson, almost of all student make their summary in order basic theory. Whereasfrom summary sheets after lesson, student just write what was has been taught by lectureand not know much. Observation result as long as learning process shows that studenttrend are active. Development result shows 28 student achieve known degree ≥ 65% and4 students achieve know degree ≤ 65%. This result also shows that learning reliableclassically is of 87,5 %.Keywords: Reliable, Physical Chemistry, Summary
PENGARUH GORENGAN DAN INTENSITAS PENGGORENGAN TERHADAP KUALITAS MINYAK GORENG
Jurnal Pilar Sains Vol 6, No 02 (2007)
Publisher : Jurnal Pilar Sains

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

Abstract

Have been conducted research nfluenced type of fried and frying intensity to quality of cookingoil. This research aim to to know which type is which quickest destroy cooking oil and howmultiply frying be weared according to health standard. Parameter cooking oil quality hadstudied acidic number, iod number and peroxide number. Varies fried studied was tahu, tempeand banana. From research obtained, on third frying all off varies fried, cooking oil wasdemage.Key Word: Kualitas minyak goreng, gorengan, intensitas penggorengan

Page 1 of 1 | Total Record : 8

 1 

Filter by Year

2007 2007


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)