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<![CDATA[ANALYSIS OF TRITERPENOID COMPOUNDS AT THE LEVEL OF SOLUTION POLLARITY FROM WATER EXTRACT OF BEAN FRUIT (Phaseulus Vulgaris L) ]]>
<![CDATA[Ragaya Abd. R Balafif]]>;
<![CDATA[Yayuk Andayani]]>;
<![CDATA[Erin Ryantin Gunawan]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v1i2.1017
<![CDATA[This study aims to analyze the triterpenoid group compounds from solvent partition result extract green bean fruit extract (Phaseulus vulgaris Linn) through increasing solvent polarity level. Extracts of beans was extracted by maceration using a water solvent (1: 18 w / v). The result of preliminary test resulted that the viscous water extract of green beans positively contained triterpenoid, and the result of GC-MS analysis showed that triterpenoid compound was present in the fraction of methanol extract that is tetracyclic triterpenoid type, lanostane: 9,19-cyclolanost-24-en-3-ol ( cycloartenol) which has the molecular formula C30H50O (m / z = 426).]]>
<![CDATA[EXPLORATION OF RBC AND HGB IN MENCIT (Mus musculus) HYPEROLOLERINOLEMIA ]]>
<![CDATA[Nofisulastri Nofisulastri]]>;
<![CDATA[Baiq Mirawati]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v1i2.1008
<![CDATA[So far there is no clear information about RBC and HGB linkage with hypercholesterolemia, especially for arteriosclerosis and hypertension patient. In the future, this research is expected to add a repertoire of knowledge and people knew about hypercholesterolemia and the utilization of appropriate alternative medicine. A total of 20 mice (Mus musculus) age ± 2 months of hypercholesterolemia caused by cholesterol-rich diet (ad libitum). The data were analyzed by analysis of variance based on Randomized Block Design (RAK) 1% with 5 (five) groups and 4 replications (positive control, negative group, and the group of celery extract dose 0,5 ml with concentration 25%, 50%, 100%). It was concluded that HGB in line with RCB (either treated with celery extract or mice treated with hypercholesterolemia) and the provision of celery extract significantly did not affect RBC and HGB with total blood cholesterol level of mencit.]]>
<![CDATA[DEVELOPMENT OF ANIMATION MEDIA TO IMPROVE STUDENTS’ LEARNING MOTIVATION AND CHEMISTRY LEARNING ACHIEVEMENT AT SMAN 4 PRAYA ]]>
<![CDATA[Zar’atul Muhsinin]]>;
<![CDATA[H. Wildan]]>;
<![CDATA[Muntari Muntari]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v1i2.1013
<![CDATA[This study aims to develop chemistry animation media of redox reactions. The study was conducted by using the approach of R & D by Borg & Gall including preliminary study, early product development, validation, limited testing, product revision, and the testing stage. To examine the effectiveness of media on students’ motivation and learning outcomes using the stages of classroom action research (CAR) was conducted at SMAN 4 Praya. Data of the study was collected through activity observation, questionnaires, and achievement test. Based on the result, it can be concluded that students’ cognitive achievement hasclassical completeness by 61% in cycle 1 and 78 % in cycle 2. The average of students’ motivation also improveby 69 in cycle 1 and by 75 in cycle 2 although both are included in the middle category.]]>
<![CDATA[THE EFFECT OF DISCOVERY-INQUIRY LEARNING MODELS APPLICATION TOWARD LEARNING ACHIEVEMENT ON COLLOID SUBJECT MATTER REVIEWED FROM STUDENTS INITIAL ABILITY ]]>
<![CDATA[Louisiana Muliawati]]>;
<![CDATA[Wildan Wildan]]>;
<![CDATA[Agus Abhi Purwoko]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v1i2.1009
<![CDATA[The research has been done to evaluate the influence of discovery-inquiry learning model application on colloid subject to students learning result refer to their initial ability in SMAN 7 Mataram academic year 2012/2013. The result of this research is to know: (1) The result of chemistry learning of students who have high initial ability and low initial ability that learn through discovery-inquiry model with students who follow expository learning in SMAN 7 Mataram. (2) Interaction between learning model and student's early ability to student's chemistry learning result in SMAN 7 Mataram. Research Data processing was conducted through Microsoft Excell. The results of the data analysis showed that students learning results taught using the discovery-inquiry model were higher than using expository in both students with high initial ability and low initial ability. There is no interaction between model and initial ability with students learning result.]]>
<![CDATA[UTILIZATION OF PINEAPPLE LEATHER WASTE (ANANAS COMOCUS) AS AN OKSALATE ACID SOURCE TO IMPROVE THE EFFECTIVENESS OF Cu (II) IONALIZED ION PHOTOREDUCTION OF TiO2 ]]>
<![CDATA[Husnul Hatimah]]>;
<![CDATA[Suryati Suryati]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v1i2.1014
<![CDATA[A study has been carried out on the effect of the addition of TiO2 photocatalysts and oxalic acid sourced from pineapple skin at various pH and concentrations, to the effectiveness of Cu (II) ion photoreduction catalyzed by TiO2. The photoreduction process was carried out by irradiating the mixture consisting of a solution of Cu (II) ion and TiO2 photocatalyst powder without or in the presence of oxalic acid in a closed reactor equipped with a UV lamp with stirring. The photoreduction process conditions are 50 mL of 10 ppm Cu (II) ion solution (0.157 mmol / L) and varying concentrations of oxalic acid, and 20 mg of TiO2, with a 24-hour reaction time. The photoreduction product was determined based on the difference in the initial Cu (II) ion concentration and the remaining Cu (II) ion concentration in the solution after the photoreduction process was determined by the Atomic Absorption Spectrophotometry (AAS) method. The results showed that the addition of TiO2 could increase the effectiveness of Cu (II) ion photoreduction from 9.03% to 43.22%, which was initiated by the adsorption process. The presence of oxalic acid in pineapple skin in a photoreduction reaction system with greater concentration causes a relatively high increase in Cu (II) ion photoreduction because oxalic acid can prevent recombination of electrons with OH radicals, so that the Cu (II) photoreduction process can run optimally due to the amount of relatively large number of available electrons.]]>
<![CDATA[THE EFFECT OF ELECTRIC FLOW ON DECORATIVE KROM ELECTROPLATING WITH COPPER BASE METAL TOWARD CORROSION RATE ]]>
<![CDATA[Ahmadi Ahmadi]]>;
<![CDATA[Citra Ayu Dewi]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v1i2.1010
<![CDATA[In this study a decorative chrome electroplating process has been carried out with a copper base metal, metal electroplating is often used as a means to provide a thin layer on the surface of other metals or substrates using metal which has advantages in terms of property and corrosion resistance. In decorative chrome electroplating nickel and chrome are used as coatings, nickel and chrome are used as coatings because of their protective and decorative properties, protective means they can prevent corrosion and decorative because they look shiny so they look attractive. Copper metal is chosen because of its huge application in the community. This study aims to measure the corrosion rate in copper metal after a decorative chrome electroplating process based on electric current used during the electroplating process. This research is important because during the electroplating process a decorative chrome electoplating technique will be obtained in the form of modules, and the module will be used to train students to increase their skills. This research was conducted in the IKIP Mataram chemical laboratory with a time of one year. The process carried out in this study sequentially is to prepare an electrolyte solution used for electroplating, preparing the copper base metal to be free of oxide or rust, nickel coating and finally coating with chrome. From the coating process carried out then the results will be analyzed the corrosion rate by immersion in NaCl solution at a concentration of 36.05 grams / L for 336 hours, based on variations in electric current used during the electroplating process of 0.5; 1; 1.5; 2; and 2.5 Ampere, the corrosion rate results were 0.029; 0.013; 0.017; 0.022; and 0.012 mm / yr; while the copper metal which is not coated with a corrosion rate is 0.308 mm / yr. Thus it can be concluded that copper metal coated with nickel chrome will effectively resist the lowest rate of corrosion in the current given 2.5 Ampere.]]>
<![CDATA[VIBRATION SENSOR BASED ON FLAT KOIL FOR EARTHQUAKE EARLY DETECTION IN LOMBOK NUSA TENGGARA BARAT REGION ]]>
<![CDATA[Islahudin Islahudin]]>;
<![CDATA[M. Firman Ramdhan]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v1i2.1015
<![CDATA[In this research has been developed the application of flat coil as vibration sensor for early detection of earthquake. The flat coil is a very thin wire winding and acts as an inductor. This flat coil along with the capacitor constructs an oscillator which generates frequencies depending on the value of inductance and capacitance. This oscillator is called the LC oscillator. The flat coil inductance depends on the distance of the metal object in front of the flat coil. If the inductance changes, the frequency will change as well. Frequency can be converted into voltage form to represent distance. This effect is then applied to low frequencies using a pendulum on the sensor housing. The sensor system created can measure low-frequency vibrations in the range 0.26 - 1.0 Hz. Based on the research, the vibration sensor that has been made can measure one of the low frequency vibrations of 0.468 Hz at the frequency of 0.46 Hz vibration source]]>
<![CDATA[SECONDARY IMMUNITY RESPONSE OF MENCIT BALB / C (MUS MUSCULUS) EXPORTED BALI COW TESTISICULAR EXTRACT (BOS SONDAICUS) ]]>
<![CDATA[Sri Novita Primawati]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
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DOI: 10.33394/j-ps.v1i2.1011
<![CDATA[Based on previous research by observing leukosit ploriferation of Balb / c mice given Balinese cow testical extract which showed significant result on observation to 72 hours after injection, while at 3 hours and 24 hours is not significant, it is suspected that the immunological response given to testicular extract a secondary immune response. This study aims to determine the ploriferation of Balb / c mice leukocytes exposed at some observation time, whether these include primary or secondary immune responses. Therefore it is necessary to do further research by adding exposure time of 1 day, 3 days, 5 days, and 7 days with only one exposure Con A (at 0 hour only). This study was designed with a complete randomized factorial design. The data obtained were analyzed by ANOVA analysis using F test. The results of this study showed that the influence of immunosuppression was highest on the third day (72 hours) and disappeared on the seventh day. This shows that the immunological response shown during observation of leukocyte proliferation of Balb / c mice is a secondary response.]]>
<![CDATA[ANTIPLASMODIUM ACTIVITIES OF KELUWIH (Artocarpus camansi) METHANOL LEAF EXTRACTS IN THE MENCIT (Mus musculus) Balb / c INFECTED WITH Plasmodium berghei ]]>
<![CDATA[Dmitry Arditya Harsya Priangga]]>;
<![CDATA[Dwi Soelistya Dyah Jekti]]>;
<![CDATA[Yayuk Andayani]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
Publisher : <![CDATA[IKIP Mataram ]]>
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DOI: 10.33394/j-ps.v1i2.1016
<![CDATA[Antiplasmodium activity test of methanol extract of leaves of kelwih (Artocarpus camansi) was carried out in vivo in mice (Mus musculus) Balb / c infected with Plasmodium berghei. The purpose of this study was to determine the effective dose of methanol extract of leaves of kelwih as antiplasmodium. Antiplasmodium activity test was carried out in vivo in Balb / c mice that had been infected with Plasmodium berghei. Parameters observed were parasite growth, and parasite inhibition. After the administration of methanol extract of leaves of kelwih and as many as 30 mice were grouped into 5 treatment groups which were given extract doses of 1, 25, 50, 75, and 100 mg / kg BB and one negative control group (without the administration of methanol extract of kelwih leaves). Observations were carried out for 7 days, starting from day 0 (before treatment), 4 days during treatment and 2 days after treatment. The data obtained were analyzed statistically ANOVA using the Kruskal-Wallis H test and continued with Mann-Whitney U test. The results showed that the lowest parasite growth (1.636%) was obtained from the group dose of 100 mg / kg BB, the largest parasite inhibition (72.832% ) also produced by a group dose of 100 mg / kg BB. An extract is said to have positive antimalarial activity if it can reduce parasitemia by 30% or more. A dose of 100 mg / kg body weight produces parasitic growth values, and parasite inhibition is significant to the control (p <0.05). So, from the explanation above, it can be concluded that giving a dose of 100 mg / kg BB of methanol extract of leaves of kelwih has potential activity as an antimalarial.]]>
<![CDATA[THE EFFECTIVENESS OF MATHEMATICAL LEARNING BASED ON PROBLEM SOLVING REVIEWED FROM STUDENTS’S MOTIVATION AND LEARNING ACHIEVEMENT ]]>
<![CDATA[Lalu Saparwadi]]>
<![CDATA[ Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 1, No 2: December 2013 ]]>
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DOI: 10.33394/j-ps.v1i2.1007
<![CDATA[This study aims to describe whether there are differences in learning mathematics-based problem-solving in terms of results and student motivation of mathematics. This type of research is a quasi-experimental research and the design carried out on this study is a pretest-postest nonequivalent group design. In this research, the observation was done twice, before and after treatment. Observations made earlier are called pre-test and later observations are called post-test. The result of the calculation of the implementation of mathematics learning with the problem-solving based approach to student achievement is significant (p = 0,000 <0.05). It showed a Fcount of 1.002 <Ftabel of 1.76 with a significance level of 5%. Thus H0 is accepted and Ha is rejected, meaning there is a significant difference in mathematics learning achievement between problem-solving approach and conventional. The result of the calculation of the implementation of mathematics learning with the problem-solving-based approach to student's learning motivation is significant (p-count = 0.03 <0.05) or refer to Fcount of 1.07 <Ftable of 1.76 with a significance level of 5%. So that Ho accepted, it means there are differences in student learning motivation that is taught between using problem-solving based learning and conventional learning. Learning with problem-solving approaches will be effective if the teacher as an educator prepares the problems according to the context. From the results of this study, the researchers recommend being used as a reference for similar research with different subject materials. This research can be developed by adding other attribute variables such as student self-confidence, verbal ability, motivation, nor critical thinking ability.]]>
