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INDONESIA
SAINS DAN MATEMATIKA
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Mathematics
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Volume 17 Issue 3 Year 2009" : 7 Documents clear
PENGARUH KONSENTRASI DAN LAMA PERENDAMAN DALAM SUPERNATAN KULTUR Bacillus sp.2 DUCC-BR-KI.3 TERHADAP PERTUMBUHAN STEK HORISONTAL BATANG JARAK PAGAR (Jatropha curcas L.) Pamungkas, Febriani Tri; Damranti, Sri; Raharjo, Budi
JURNAL SAINS DAN MATEMATIKA Volume 17 Issue 3 Year 2009
Publisher : JURNAL SAINS DAN MATEMATIKA

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Abstract

ABSTRACT--Jarak pagar (J. curcas L.) is a plant whose the seed can produce oil or it is known as biodiesel. J.  curcas's oil is the source of alternative oil energti that can be renewable and environmentally safe. Another ways  to increase the production of J. curcas's oil is by improving its  productivity. This activity cannot be separated from the problem of supplying the seed. Stem cutting  is one of the most ways to provide the seed than another way. The growth of stem cutting can be stimulated by giving ZPT that is IAA both naturally and synthetically. Bacillus  sp.2  DUCC-BR-KL.3 supernatant culture that contain IAA can be one of naturally alternative hormone. The aims of this research was to study the effect of concentration and submersion period in Bacillus  sp.2 DUCC-BR-KL.3  supernatant culture to the growth of J. curcas L. hoizontal stem cutting. This experiment was  condueted in Plant's Biologi Structure and Function Laboratory, MIPA faculty, Diponegoro University. Experimental design used in this research is Completely Random  Design with Factorial pattern 5x4 by using 5 replications. The first factor was concentration, ie P0 (control), P1 (25%), P2 (50%), P3 (75%) and P4 (100%). The  second factor was submerged periods, i.e T1 (1 hour), T2 (2 hours), and T3 (3 hours). The data were analyzed by using Kruskal-Wallis Test and ANOVA, if there are significantly  influence, were analyzed by using Duncan multiple range test with 95% confidence intevals that is in the variable of root lenght and weight of dry root. The result of this sudy showed that the giving of Bacillus sp.2 DUCC-BR-KL.3 supernatant culture influence to improve the bud and root growth of J. curcas L. Keywords :  Jatropha culcos L., supernalant, concentration, growth
PEMODELAN ANOMALI GRAVITASI DENGAN PENDEKATAN BENDA BERBENTUK SILINDER Rahmanto, Dedi; Yulianto, Tony
JURNAL SAINS DAN MATEMATIKA Volume 17 Issue 3 Year 2009
Publisher : JURNAL SAINS DAN MATEMATIKA

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Abstract

ABSTRACT---A  gravity  anomalies  modeling  program    has  been  made  with  the  approximation  of  cylinder shaped body  for  the case of  N anomalous bodies. This program  is named DRAVECT version 1.1. The modeling program was executed by Microsoft Visual Basic   6.0   programming language.The program was made by identifying gravity problems. Input and output data that be identified from gravity parameters, dimension and position parameters of anomalous bodies. The gravity   anomalies were calculated by  inserting synthetic data  to the  modeling  program.  The  anomaly  profiles  3  D  were  displayed  automatically,  and  the  profiles  of  gravity anomalies 2 D were made respectively. Validation test had been done by compare program result with reference. Based  on  the  graphical  qualitative  interpretation  of  gravity    anomaly  profiles  as  the  result  of  the  conducted modeling, it was obtained the characteristics of gravity anomaly of cylinder shaped body. Keyword : gravity anomalies, cylinder
PENGARUH FORMALIN, DIAZEPAM DAN MINUMAN BERALKOHOL TERHADAP KONSUMSI PAKAN, MINUM DAN BOBOT TUBUH Mus musculus Saraswati, Tyas Rini; Indraswari, Endah; Nurani, Nurani
JURNAL SAINS DAN MATEMATIKA Volume 17 Issue 3 Year 2009
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Abstract

ABSTRACT---Diazepam, formalin and drink which contain alcohol are substances that can be a toxic if they are accumulated  in a body. Drink  that contains alcohol can make someone drunk. Diazepam  is a medicine that calms and  its  function  is  to decrease neuron activity. While  formalin which  is  to used as  food preservation causes metabolism disorder. This aim of this research was to investigate and analyze the physiological aspect of M musculus body after it was treated with diazepam, formalin and drink alcoholic. The research used completely Randomize Design. The animal  that was  in experiment were 16 male M musculus and divided  into 4  treatments and 4 replications. The treatments were P0 (Control), P1 (0.04 mg Diazepam), P2 (100 ppm Formalin), P3 (Drink which contains 4,8% alcohol ). Food and drinking water were ad libitum. The treatments were given daily for 30 days. The data were analyzed with anova. The result  indicated that were not significant for all parameters. So, it was concluded  that 0.04 mg diazepam, 100 ppm  formalin and drink which contains 4,8% alcohol didn’t change the metabolism of M musculus body.  Key words: diazepam, formalin and drink alcoholic
EKSISTENSI DAN KETUNGGALAN LAPANGAN HINGGA Suryoto, Suryoto
JURNAL SAINS DAN MATEMATIKA Volume 17 Issue 3 Year 2009
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ABSTRAK--Lapangan merupakan salah satu bentuk gelanggang yang mempunyai sifat-sifat yang cukup menarik untuk dikaji, khususnya lapangan yang banyaknya unsur berhingga atau yang lebih dikenal dengan lapangan hingga. Yang menarik dari lapangan hingga adalah banyaknya unsur yang terkandung di dalamnya, yang ditentukan sepenuhnya oleh suatu bilangan prima yang merupakan Karakteristik lapangan tersebut. Pada makalah ini akan dikaji eksistensi dan ketunggalan lapangan hingga dengan order atau banyaknya unsur yang terkandung di dalamnya merupakan perpangkatan suatu bilangan prima yang merupakan karakreristiknya, melalui dua buah pendekatan, yaitu pendekatan melalui ruang vektor dan pendekatan dengan suku banyak.Kata kunci : Karakteristik, order, suku banyak monik tak-tereduksi, ruang vektor
UJI EKSTRAK BAWANG BOMBAY TERHADAP ANTI BAKTERI GRAM NEGATIF Pseudomonas aeruginosa DENGAN METODE DIFUSI CAKRAM Wuryanti, Wuryanti; Murnah, Murnah
JURNAL SAINS DAN MATEMATIKA Volume 17 Issue 3 Year 2009
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Abstract

 ABSTRACT---Microbe is a microscopic living organism which is closely linked to human life. One of    patogenic microorganisms such as Pseudomonas  aeruginosa  may cause diseases. Sulfure of several plants are bioactive as antimicrobial. The properties of sulfure in Allium cepa L leads to an assumption that it has antimicrobial properties. Therefore, this study involved the antimicrobial test. The determination steps of antimicrobial Allium cepa L extract consisted of the Allium cepa L extract preparation, microbial regeneration and antimicrobial  test. The antibacterial   determination were performed by paper disk method. Based on  the research  data, determination of antimicrobial white  Allium  cepa  L  extract resulted in inhibition zone area showed that the extract owned antimicrobial property.  Key words : Allium cepa L, sulfure, Pseudomonas aeruginosa
DETEKSI DAN KOREKSI ERROR PADA PESAN DIGITAL DENGAN KODE HAMMING Irawanto, Bambang; Widyaningsih, Santi
JURNAL SAINS DAN MATEMATIKA Volume 17 Issue 3 Year 2009
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Abstract

ABSTRACT--At digital message delivery process in the form of code may will experience of trouble in couse of  its transmission so that generate the error of accepted message. Hamming Code (n,k,d) is one of method that coald detect error and correct error that happened at one blow. Coding process  of message by Hamming  Code (n,k,d) can be done by multiply of message word delivered with the generator matrix G. Then for the Coding process of codewords accepted can be done with method of vector error, the method started by determined the syndrome, and continued with the error detrection process and also error correetion process. The final step is read the codeword by multiply  codeword accepted with parity check matrix H toget the message such as those which transmissionfrom the beginning. Keyword:  Hamming Code (n,k,d), generator matrix, the parity check matrix, syndrome, error correcting code
KARAKTERISTIK PERBEDAAN ANTARA E-COMMERCE (EC) DENGAN E- GOVERNMENT (EG), DAN PENERAPAN PARADIGMA EC PADA EG DENGAN PENDEKATAN EMPIRIS Widodo, Aris Puji; Istiyanto, Jazi Eko
JURNAL SAINS DAN MATEMATIKA Volume 17 Issue 3 Year 2009
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Abstract

ABSTRAKS---Lebih dari satu dekade bahwa aplikasi EC dan EG telah memberikan dampak besar pada beberapa sektor, baik sektor swasta maupun masyarakat. Pemanfaatan Teknologi Informasi dan Komunikasi (TIK) pada EC lebih berhasil dibandingkan dengan pemanfaatan TIK pada pemerintahan dalam hal ini EG. Keberhasilan EC  inilah  yang  akan  digunakan  oleh  pemerintahan  untuk  menerapkan  paradigm  EC  ke  dalam  EG,  dengan mengadopsi  konsep,  proses,  dan  teknologi  yang  diterapkan  pada  bisnis. Kajian  ini  dilakukan  secara  komperatif terhadap dua  fenomena EC dan EG. Pada makalah  ini dibahas  secara empiris mengenai karakteristik persamaan dan perbedaan antara EC dan EG, serta paradigma kekuatan dan kelemahan pada EC untuk diterapkan pada EG. Fenomena  antara  EC  dan  EG  memiliki  banyak  persamaan,  tetapi  pada  prinsipnya  meliliki  perbedaan  secara mendasar terkait mengenai peran bisnis dengan pemerintah.  Kata Kunci : E-Commerce, E-Government, Paradigma, Bisnis, dan Pemerintah   

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