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Diana Eka Pratiwi
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Unit Publikasi Lantai 11 Gedung ICP FMIPA UNM Jln. Daeng Tata, Kampus UNM Parangtambung, Makassar, Indonesia 90224
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INDONESIA
SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
Published by Universitas Negeri Makassar
ISSN : 20866755     EISSN : 25795686     DOI : https://doi.org/10.35580/sainsmat
Core Subject :
The objective of this journal is to publish original, fully peer-reviewed articles on a variety of topics and research methods in sciences, mathematics, statistics, education, and applied science. The journal welcomes articles that address common issues in mathematics, sciences, statistics, education, applied science, and cross-curricular dimensions more widely.
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Articles 282 Documents
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Efektivitas Penerapan Protokol Kesehatan 3M padaPenularan Covid-19 dengan Model SEIR di Kota Makassar Syafruddin Side; Aisyah Mukhlisah Araaf; Munadiya Yunadia; Nur Qamariah; Yusnalia Kadir; La Ode Salman Yassar
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 11 No. 1 (2022): Volume 11 Nomor 1 (Maret 2022)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

The aims of this study was to build a SEIR model on Covid-19 transmission, to find out the analysis and simulation of the SEIR mathematical model for the prevention of Covid-19 transmission and to determine the effectiveness of the application of the 3M health protocol recovered Covid-19 from January 2021 to April 2021. The results shown that the SEIR model can be used to prevent transmission of Covid-19. The results of the analysis of the SEIR model shown that the basic reproduction number 푹ퟎ<1for the three simulations with the presentation of the application of the 3M health protocol were 10%, 50% and 90%, respectively. Meanwhile, the simulation results of the model shown that the higher the 3M application presentation, the smaller the value of the basic reproduction number. This shown that the implementation of the 3M health protocol against Covid-19transmission in Makassar City is effective, because it is able to minimize the rate of increase in the number of Covid-19 cases. This can be a reference for the Makassar City Government so that the application of 3M continues to be carried out to break the chain ofCovid-19spreadingin Makassar.
Pemetaan Risiko Relatif Kasus Stunting di Provinsi Sulawesi Selatan Aswi Aswi; Sukarna Sukarna; Nurhilaliyah Nurhilaliyah
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 11 No. 1 (2022): Volume 11 Nomor 1 (Maret 2022)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

ndonesia is a country with the third-highest prevalence of stunting in the Southeast Asian region. South Sulawesi Province, one of the provinces in Indonesia, has a fairly high number of stunting cases. The implementation of the Bayesian Spatial Conditional Autoregressive (CAR) model in estimating the relative risk (RR) of stunting cases has not been carried out in Indonesia, especially in South Sulawesi Province. This study aims to determine the relative risk of stunting cases by using the Bayesian spatial CAR Leroux model and to build a thematic map of the relative risk of stunting cases in all districts/cities in South Sulawesi Province. The results show that the Bayesian spatial CAR Leroux model with hyperprior IG(0.5; 0.0005) is the best model based on the criteria used. Toraja district, Parepare City, and Enrekang district are the three districts/cities with the highest relative risk of stunting. On the other hand, Gowa district, Makassar City, and Pinrang district are the three regions with the lowest relative risk of stunting.
Preliminary Study on Antifungal Activity of Leaf Extract from Four O’clock Flowers (Mirabilis jalapa) Against Rizoctonia and Fusarium Fungi Ahmad Fudhail Majid; A.Irma Suryani
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 7 No. 1 (2018): Volume 7 Nomor 1 (Maret 2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Leaf extract from Four O’clock Flowers (Mirabilis jalapa) has secondary metabolites compound that can be used as botanical pesticide. In addition, the synergism of the leaf extract of this plant with entomopathogenic microbes such as entomopathogenic fungi to maximize the effect and its activity in controlling insects. However, it is necessary to study the antifungal activity of M. jalapa leaf extract against fungi. This research uses extract of M. jalapa concentration 0 (control), 0,1; 0.2; 0.4; and 0.8% (w / v). the antigungal activity test using the agar diffusion method. The results showed that leaf extract from M. jalapa did not inhibit the activity of Rizoctonia and Fusarium fungi so as to allow M.jalapa leaf extract to be combined with mushrooms for further research on botanical combinations of pesticides.
Dispersi: Studi Pendahuluan Revitalisasi Pemanfaatan Karbon Aktif sebagai Material Elektroda. Shielda Natalia Joris; Nelson Gaspersz; Mario Rowan Sohilait
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 12 No. 1 (2023): Volume 12 Nomor 1 (Maret 2023)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Activated carbon is a cheap carbon material with high specific surface area, porosity, and electrical conductivity. This fact makes the various applications of activated carbon as an adsorbent, water treatment, and energy sector. Activated carbon dispersion studies facilitate the application of activated carbon as a primary material in the design of electrodes in fuel cells and batteries. In this study, dispersion studies of activated carbon were carried out in an aqueous system using surface active agents (surfactants) Cetyl Trimethyl Ammonium Bromide (CTAB), Sodium Dodecyl Sulfate (SDS), and Polysorbate 80 (Tween 80). The ratio of activated carbon to surfactants varies from 1:0–1:5 for each surfactant. The UV-Vis spectrophotometer measurements at a wavelength of 200–500 nm showed that Tween 80 surfactant with a 0,05 g activated carbon with 3 mL Tween 80 could disperse activated carbon in water solvents better than CTAB and SDS.
Analisis Kandungan Zat Gizi dan Asupan Zat Gizi Santri serta Status Gizi Santri MA. Sultan Hasanuddin Pattunggalengang-Limbung Kabupaten Gowa Sulawesi Selatan Tauhidah Bachtiar; Satriani Satriani; Nursaidah Hardiyanti
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 11 No. 1 (2022): Volume 11 Nomor 1 (Maret 2022)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

A person's health is affected by how they maintain the pattern of nutritional intake consumed daily.The purpose of this study is to assess the content and intake of nutrients in MA. Sultan Hasanuddin as well as to measure the nutritional status of santri MA. Sultan Hasanuddin. This type of research is research that is observational with a descriptive approach. The research design used in this study is Cross sectional study is a research design that is intended to identify variables in nutritional content and nutritional intake santri and nutritional status santri at the same time. The variables in this study consisted of the content of nutrients, the intake of nutrients santri and the nutritional status of santri. Data collection is done by taking primary and secondary data, primary data includes the content and intake of nutrients (type and level of consumption) and nutritional status by anthropometric means. The study sample was selected at random sampling, The sample size is 34 people. Based on the results of research, it can be known that the value of the content and intake of macro and micronutrients in MA. Sultan Hasanuddin generally did not meet the standard needs of AKG. As for the results of the nutritional status analysis based on body mass index (BMI) santri MA. Sultan Hasanuddin can be said to be good because the percentage of santri that has good nutritional status is 58.82%.
Implementation of Auditory Intellectually Repetition (AIR) Learning Model to Students’ Cognitive Learning Outcomes Winda Elinawati; Hilarius Jago Duda; Hendrikus Julung
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 7 No. 1 (2018): Volume 7 Nomor 1 (Maret 2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

his research aimed at knowing the implementation of auditory intellectually repetition (AIR) learning model on student cognitive learning result on the Environmental Pollution learning material. The research approach used is quantitative descriptive. The research method used is experiment type Quasi-experiment with design research Nonequivalent Control Group Design. The population in this study is all students of class VII SMPN 7 Dedai. Samples are VIIA and VIIB classes. The sampling technique used was purposive sampling technique. The data collection instruments used were observation sheets, questions test, and questionnaires. Data analysis for obesrvation and questionnaire by percentage and for test with parametric statistic that is t-test of two samples. The result of analysis on teacher observation sheet at the first and second meeting obtained an average value of 97.70%, belonged to very strong criteria, while the analysis of student observation sheets at the first and second meeting obtained average value of 95.45% belonged to very strong criteria. Based on the posttest hypothesis test on the experimental and control class obtained tcount was 14,77 and ttable was 2,00665. Testing the hypothesis proves that tcount> ttable(14,77> 2,00665) which means Ha accepted and Ho rejected. Hence, it was proved that there was a significant difference on students' cognitive learning result on the Environmental Pollution learning material between the experimental class and the control class. Based on the students' response questionnaire processing is obtained by the average percentage value of 86.81% belonged to strong category
Generalized Space-Time Autoregressive Integrated Moving Average Modeling in Forecasting Covid-19 Cases in Indonesia Rahmawati; Suwardi Annas; Aswi Aswi
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 12 No. 1 (2023): Volume 12 Nomor 1 (Maret 2023)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Covid-19 is an infectious disease caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). The spread of Covid-19 in Indonesia has grown rapidly that the World Health Organization has declared Covid-19 a pandemic. Covid-19 cases have spread to 34 provinces in Indonesia. Covid-19 data in Indonesia involves space and time so the appropriate modeling is the space-time model. Space-time modeling of the Covid-19 cases in Indonesia using the Generalized Space-Time Autoregressive Integrated Moving Average (GSTARIMA) model has not been carried out. The purpose of this research is to get the best GSTARIMA model and forecast the Covid-19 cases for the next several times. This model incorporates time and location interdependence with different parameters for each location. Identification of the order of the AR and MA used the STACF and STPACF plots. For simplicity of interpretation, the spatial order is chosen first order. In this study, the queen contiguity and the inverse distance location weighting matrix were used. The parameter estimation used is Ordinary Least Square (OLS). The results show that the best model for predicting Covid-19 cases in 34 provinces in Indonesia is the GSTARIMA model (1,1,0)1 using an inverse distance weighting matrix with the smallest RMSE value of 1.22.
Management of Bantimurung National Park Bulusaraung in Ethnoecology Perspective (Kelurahan Kalabbirang Case Study) Amal Arfan; Suprapta; Nur Hikmah
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 7 No. 1 (2018): Volume 7 Nomor 1 (Maret 2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

This research aims to know 1) The local communities understanding of Bantimurung National Park Bulusaraung, 2) The interaction that occurs between the local communities. Informants came from the community in Kelurahan Kalabbirang selected by using purposive sampling then followed by snow ball sampling. Data obtained from observation, documentation and interview. The research results showed that 1) The communities understands the existence of the boundary and it’s benefits because the community has long been living even since the area has not been used as a National Park. 2) The interaction seen from the utilization of land managed by the communities as agricultural land; utilization of the area as a tourist park; as well as a variety of conservation actionsin the form of mutual assistance in cleaning the surroundings; monitoring of the butterfly habitat; and patrols conducted by community and forestry police.
Development of Project Assesment in Physics Learning Muhammad Harisah Ali; Muh. Tawil; Nurhayati; Sitti Rahma Yunus
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 7 No. 1 (2018): Volume 7 Nomor 1 (Maret 2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

This study aims at finding out (1) the characteristics of project assessment in assessing learning outcomes of grade X students of SMA Negeri 1 Bantaeng, (2) whether or not project assessment is valid to assess learning outcomes of grade X students of SMANegeri 1 Bantaeng, (3) the learning outcomes of grade X students of SMA Negeri 1 Bantaeng in using project assessment.. This research is a research development which refers to Plomp Development Model. Project assessment consists of an instrument of assessment in planning the project, assessment rubrics of the planning and implementation, assessment rubrics of product reports, assessment rubric of video products. The results of this study indicated that (1) project assessment has characteristics : at the pre-investigation phase, there were some problems appeared in project assignment in case of unsystematic assessment process. At the design phase, there were project assessment. At the realization phase, there were prototype I. At the evaluation phase, therewere a project assessment which assess the phase of planning, implementation, and evaluation. (2) The Development of Project assessment can be categorized as a valid criteria so it can be feasible to used, (3) the learning outcomes of grade X students of SMA Negeri 1 Bantaeng in using project assessment is in high category.
Determination of NORM in Chemical Fertilizer using Gamma Ray Spectrometry Rindi Genesa Hatika
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 7 No. 1 (2018): Volume 7 Nomor 1 (Maret 2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

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Abstract

Chemical fertilizer is a mixture of chemical compounds which provide for the needs of chemical elements and nutrients in plants (Chauhan et al., 2013). One example rather than chemical fertilizer that is widely used as a fertilizer phosphate. Phosphate rock is the starting material for the production of all products are the main source of phosphate and phosphate fertilizers (Roselli et al., 2010).Natural uranium in phosphate rock has the properties can replace the position of calcium, resulting in a certain time will accumulate uranium in fertilizers. the existence of uranium in phosphates depending on levels of uranium in phosphate rock (Indri et al., 2006). In the manufacture of phosphate fertilizers, many radionuclides come into the fertilizer, so fertilizer spreading into the environment and become NORM radioactive sources (Rehman et al., 2006). This study was conducted to determine the radioactive material (NORM) in the chemical fertilizer in Indonesia using gamma ray spectrometry. Based on the research that has been done, it can be concluded that the six types of samples of fertilizers namely Urea, ZA, KCL, NPK, TSP and Phosphate has a content of natural radioactive materials (NORM).

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