Proceeding International Conference on Mathematic, Science, Technology, Education and their Applications
Not a member yet
50 research outputs found
Sort by
Analysis Von Bertalanffy Equation With Variation Coefficient
Full text linkGrowth is the increase of size, both its length and weight at a specific time period. In studying the behavior of the growth of fish used a growth model that is Von Bertalanffy models. However Von Bertalanffy models showed that the growth rate is a constant function. Meanwhile these assumptions can only describe the dynamics of growth of marine life in an environment of constant and fail to describe the dynamics of the growth of marine organisms whose growth varies seasonally or by time. Von Bertalanffy models thus developed with a coefficient of variation which gives additional biological realism of Von Bertalanffy models into a population that enables the growth rate by changing the size of the body with seasonal variations. This study aims to find solutions of to the equations Von Bertalanffy Model with a coefficient of variation and actualize the model on Wader pari fish and skipjack, with the incorporation coefficient time varied significantly will increase the the ability of Von Bertalanffy’s model to describe the changes of fish’s body size up to the long asymtot by considering the growth factors such as temperature, water temperature and food availability that exist within the environment. Keywords: Growth, Von Bertalanffy, Varying Coefficient, actualizatio
Results Increasing Student Learning Through The Use of Biology Learning Model Cooperative Think Pair Share (TPS) The Student Class XI IPA SMA Negeri 5 Makassar
Full text linkThis research is a research class actions that aims to improve the students learning biology class XI IPA SMA Negeri 5 Makassar through the use of cooperative learning TPS. The subject of this research is the students’ class XI IPA SMA Negeri 5 Makassar even semester 2008/2009 year lessons as much as 32 students. Investigation of the factors is a cooperative learning model TPS, activities, results and study biology students. Implementation research consists of two cycles. Engineering data collection, namely to study the activity contains a number of indicators in accordance with the observation activities syntax TPS cooperative learning model that analyzed the quantitative and qualitative, while the results of data obtained from the value of learning tasks and the value of the test study analyzed the results of descriptive statistics. The observed activity results shows that students learn in general was increasing from cycle I to cycle II on each indicator to study the activity observed. The statistical analysis of the results of descriptive biology students study shows the average value for the students in the cycle that I 77,04. The frequency of students who obtain good grades in all categories, namely 18.75%, good categories, namely 81.25%, enough categories, less and failure is 0%. In the second cycle obtained by the average value of students is 81.07. The frequency of students who obtain good grades in all categories, namely 71.88%, good categories, namely 28,12%, enough categories, less and failure is 0%. In general, it was increasing the value of biological study of Cycle I to Cycle II Class XI students IPA SMA Negeri 5 Makassar on the concept of food digestion system. Keywords: Cooperative TPS, Activity, Students Learnin
Water Content Influence to Electrical Properties From Soil Volcanic
Full text link The use of geophysical methods in agricultural studies requires a full understanding on the characters of soils, including the electrical properties. In turn, these properties might be affected by soil composition and mineralogy as well as the water content. In this study, models of volcanic soil were reconstructed using river sediments in the slope of a Bukit Tunggul, a mountain near Bandung, West Java, Indonesia. The sediments were sieved to obtain the component three textual components of soils, i.e., sand, silt, and clay. Furthermore, next compositions base on ternary diagram i.e., loam, sandy loam, silty loam, sandy clay loam and silty clay loam. These soil samples were then inundated and dried while their volumetric water content, electrical conductivity as well as dielectric constant were observed every 2 minutes using EM50 Data Logger. The results show that the water content was dissolved media for ions mineral soil and didn’t major factors in controlling electrical properties. Keywords: volcanic soil, water content, electrical conductivity, dielectric permittivit
The Effect of Neem (Azadirachta indica) Coated Urea Fertilizer against NH4+ and NO3- Concentration in Clay Loam Soil Texture
Full text linkThe study aims to determine the level NH4+ and NO3- in the soil with clay loam texture with addition neem coated urea fertilizer. This study was conducted in Experimental Farm of Biology Faculty of Mathematic and Natural Science Makassar State University and Laboratory of Assessment Institute for Agriculture Technology in Maros. This research was an experimental study using a Completely Randomized Design (CDR) with five treatments are control, urea, neem (2,5%) coated urea, neem (5%) coated urea and DCD (5%) coated urea with three replicates. Analysis of NH4+ and NO3- levels in this study using colourimetric method. Results obtained by the levels of NH4+ and NO3- produced after applied of nitrification inhibitor materials coated urea fertilizer as indicated by concentration of NH4+ and NO3- produced in soil. Neem (5%) coated urea as a nitrification inhibitor showed the best effect in increasing levels of NH4+ in the soil, while DCD (5%) coated urea were the best inhibitor in reducing levels of NO3- in the soil
EFFECT OF MIXTURE INOCULUM OF LACTIC ACID BACTERIA (LAB) AND MOLD AMYLOLYTIC IN VARIOUS CONCENTRATION AND FERMENTATION TIME OF CHANGING PROTEIN AND HCN CONTENT OF BITTER CASSAVA ROOTS (Manihot aipi Phol.)
Full text linkThe purpouse of this study were to determine the effect of mixture inoculum of lactic acid bacteria (LAB) and mold amylolytic in various concentration and fermentation time of changing protein and HCN content of bitter cassava roots during fermentation of bitter cassava roots. Inoculum used is a mixture of LAB and molds amylolytic isolated from "Wikau Maombo" fermented with the highest amylolytic activity. This study was an experimental research in the pattern completely randomized design (CRD) two factorial. Substrate of bitter cassava roots inoculated as many 5%, 10% dan 15% of inoculum consentration and incubated at room temperature for 8th days. Method of measuring protein content used the Biuret method, whereas the method of measuring the HCN content used argentometry method. Analysis of data used SAS software (Statistical Analysis System). The result of this research showed that the highest of protein content was 177,28 mg/g, whereas the lowest HCN was 16,42 mg/kg on the 6th days of fermentation used 15% of inoculum consentration.Keywords: LAB, Mold, Protein, HCN, Bitter Cassava Roots
Marica Goat’s Response To The Provision of Superior Feed
Full text linkMarica goat is an endemic local goat found only in South Sulawesi province. This kind of goat is one of the genotypes of goat originally from Indonesia. According to FAO report this kind of goat belongs to scarce category and is almost endangered. Marica goat has a genetic potential to adapt well in agro-ecosystem area of dry land that is in an annual very low rainfall area. Marica goat can survive at dry season although they feed only on hay in rocky land area. The aim of this study was to find out how marica goat responds to the provision of superior feed. The study was complete random design with 3 treatments and 3 cattle as replication. The treatment applied was the types of foliage provided: field grass (RL), superior grass (RU) and superior grass plus legume (RU+L) . Marica goat used was growing female goat (research result Stage III). The pen used for intensive breeding was individual pen in the form of stage 1.5 x 1.5 m in size made of bamboo supplied with place to feed and place to drink.The results of the study indicate that marica goat had a good response to intensive breeding and provision of superior feed foliage at ex-situ condition. The provision of superior feed foliage at intensive breeding system gave response to body weight increase, feed consumption and efficiency of the use of marica goat’s feed better compared to the provision of superior grass plus legume and field grass.Keywords: Marica goat; superior fee
Application of Sutte Indicator in Predicting Movement of Indonesian Stock (A Case Study of XL Axiata Tbk and Smartfren Telecom Tbk)
Full text linkThe purpose of this study is to apply technical analysis e.g. Sutte Indicator in Stock Market that will assist in the investment decision-making process to buy or sell of stocks. This study took data from XL Axiata Tbk and Smartfren Telecom Tbk which listed in the Indonesia Stock Exchange (IDX) in the period of 5 April 2001 to 20 September 2016. Performance of the Sutte Indicator can be see with comparison with other technical analysis e.g. Simple Moving Average (SMA) and Moving Average Convergence/Divergence (MACD). Comparasion of reliability of prediction from Sutte Indicator, SMA, and MACD using the mean of square error (MSE), mean absolute deviation (MAD), and mean absolute percentage error (MAPE)
IMPLEMENTATION OF WORKSHEET BASED ON PRODUCTIVE QUESTIONS TO IMPROVE INQUIRY SKILL OF SENIOR HIGH SCHOOL STUDENTS
Full text linkThis article was result of research and development (R & D) which aims to obtain profile of inquiry ability of students. Model of the tool development was based on 4-D model of Thiagarajan et al., which are consist of define, design, develop, and disseminate. In 2015, we had produced the tool, which was student worksheets, that meets validity criterion both by experts and practitioners. The model/framework of the worksheet consists of title, question of investigation, analysis questions, and question to infer. The model/framework minimized guidance statement just like as in laboratory activity guidance book (which were like “cake recipe”). Limited testing in this study was conducted in develop stage, using descriptive analysis approach. The subject of research was students of X1 class consist of 30 students, at SMAN 1 Makassar in even semester of academic year 2016/2017 on heat and temperature. The results of study showed that the average of inquiry ability of students of SMA N 1 Makassar was in enough skilled categories. Learning process by using this student worksheet (LKPD) could train the inquiry ability of students because this worksheet consists of scientific activity based on science process skill. The SMA students, who were the subject of this research, were unfamiliar with independent learning, therefore the use of similar worksheet for another topic was needed. If students have familiarity with this LKPD, their inquiry ability would be getting better and better, students will be accustomed with scientific activity, and we expect that the scientific habitual will be formed and would be character.Keywords : student worksheets, productive question, inquir
THE INFLUENCE OF MATHEMATICAL’S REASONING ABILITY AND GENDER DIFFERENCE TOWARDS MATHEMATICAL CONCEPTUAL UNDERSTANDING
Full text linkThis research was an ex-post facto which was used to determine the influence of mathematical reasoning ability and gender for understanding mathematics’ concepts. The population in this research was all senior high school students at North Luwu regency. The sample of this research are students in classes of IX A and IX B in SMA Negeri 2 Masamba and students in classes of IX A and IX B of SMA Negeri 1 Bone-bone. The technique of sampling was two stage random sampling. The technique of collecting data was giving two tests. The first test was used for measuring student’s mathematical’s reasoning ability and the second one was used for measuring student’s understanding of mathematics’ concepts. The data were analyzed using inferential statistics. Furthermore, the finding suggests that mathematical’s reasoning ability and gender together influence mathematical concepts’s understanding of th students
THE INFLUENCE OF USING DESTINATION CARD THROUGH TEAM GAMES TOURNAMENT (TGT) TYPE OF COOPERATIVE LEARNING TOWARD STUDENT’S XII GRADE ACHIEVEMENT AT SMA NEGERI 01 UNGGULAN KAMANRE, LUWU REGENCY
Full text linkThe Influence of Using Destination Card Through Team Games Tournament (TGT) Type Of Cooperative Learning Toward Student’s XII Grade Achievement at SMA Negeri 01 Unggulan Kamanre, Luwu Regency. Thesis. Biology Departement. Mathematics And Science Faculty. Makassar State University (Supervised by Dr. Ismail., M.S dan Dr. Ir. Hj. Hilda Karim., M.). This research was a quasy-experiment used Nonequivalent Control Group design that aimed to know the effect of destination card through Team Games Tournament (TGT) type of cooperative learning Toward Student’s XII Grade Achievement at SMA Negeri 01 Unggulan Kamanre. The independent variables in this study was using of destination cards through cooperative learning Team Games Tournament (TGT) type of learning cooperative model, and the dependent variable was the learning outcomes of students in the subject of genetics. The study sample comprised two classes of class XII B as an experimental class with the number of students 25 people and the class as a class XII E control with the number of students 28 people. Data retrieval result of learning performed by administering a pretest and posttest. Learning outcome data analyzed using descriptive and inferential statistics. The analysis showed the average value of the experimental class student learning outcomes at pretest and posttest are 78, 08 and 70, 14. Results of hypothesis tested by t-test with a significance level α = 0.05, the value F = 0547; Sig = 0463; df = 51. Then H0 rejected and H1 accepted. So, based on the hypothesis test results show that there was influences of Using Destination Card Through Team Games Tournament (TGT) Type Of Cooperative Learning Toward Student’s XII Grade Achievement at SMA Negeri 01 Unggulan Kamanre, Keywords: Destination Cards, Team Games Tournament (TGT), Learning outcome