Indonesia Conference Directory

Corresponding Author
irwandi Irwandi

Institutions
Universitas Syiah Kuala, Banda Aceh
BMKG Mata Ie, Banda Aceh

Abstract
After Palu Earthquake on September 2018, another earthquake have occured in Banggai Islands which located very close. The Earthquake occurred on shallow depth which caused by thrusting or vertical relative mechanism on Central Sulawesi tectonic system. To understand the tectonic system in Banggai Islands we present a 1-D velocity model of the Earth crust obtained by solving the coupled hypocentre-velocity inversion for 651 local earthquakes recorded at a regional network in Central Sulawesi. A total of 651 earthquakes were selected based on azimuthal gap, minimum number of stations, and root mean square travel&

Keywords
Thrust, Velocity, Magnitude, Inversion, Stress and Energy

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/XpHA2cNPdkGZ

Corresponding Author
Jeddah Yanti

Institutions
(a) Department of Physics Education, State University of Medan, Indonesia
(b) Department of Physics, State University of Medan, Indonesia
*jeddahyanti93[at]gmail.com

Abstract
PISA competency framework has been gained global recognition from 2006 and was developed until the latest version in 2015. PISA competency emphasis is classified into three competencies standard, such as Explaining scientific phenomena, Evaluating and designing scientific inquiry, and Interpreting scientific data and evidence, finally, summarizing research findings. All of the PISA standard competency is reflected in each of the three types of knowledge consist of Content knowledge, Procedural knowledge and, Epistemic knowledge. PISA science assessment is based on science literacy. This article will analyze the three competencies of PISA science literacy determined by each knowledge in basic physics topics such as wave. Furthermore, the subject matter refers to wave phenomenon, types of wave, the magnitude, the formula, superposition of wave, reflection and refraction, resonance, and the energy of wave.

Keywords
Competency, Science literacy in PISA, Wave science

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/rtUAhdEQ8DGN

Corresponding Author
Rizki Nursa-adah

Institutions
Program Studi Pendidikan Fisika, Pascasarjana Universitas Negeri Medan

Abstract
This study aims to determine the quality of physics objective test High Order Thinking (HOT) in the temperature and heat material that fulfills good qualifications which include aspects of validity, reliability, level of difficulty, differentiating power and effectiveness of deceivers used in the learning assessment process as learning evaluation materials. This research includes research development (research and development) with the Borg and Gall model. Distribution of material in research on expansion, heat relationship with object temperature and shape, the principle of Black, heat transfer, ideal gas and thermodynamics. From each question material, several competency questions are obtained as a reference in making questions. This HOT test can be used as a standard test to measure students high-level abilities on high temperature and heat material in high school.

Keywords
HOT, Temperature and Heat, Validity, Reliability.

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/yvXeNZB9VGUk

Corresponding Author
tukiran surbakti

Institutions
Center for Nuclear Reactor Technology and Safety, BATAN,
Kawasan PUSPIPTEK Gd. No. 80 Serpong, Tangerang Selatan, 15310 Indonesia

Abstract
The RSG-GAS is using U3Si2-Al dispersion fuels with uranium density of 2.96 gU/cc. The silicide uranium fuels is not used anymore for the future. To anticipate the usage of other fuels in the RSG-GAS core, UMo-Al fuels were chosen. The UMo-Al fuel has many advantages some of them, it can be used at higher density in the reactor core. There are high uranium densities in UMo-Al dispersion fuels up to 16 gU/cm3 with numerous contents of Mo. In this analysis, the RSG-GAS core is used with high density of UMo-Al fuel. The neutronic parameter are such as reactivity balances, keff and power peaking factor and safety reactivity factor of UMo-Al fuel with higher density. The UMo-Al core criticality data are achieved by calculation using Batan-FUEL code. The UMo-Al fuel macroscopic cross-section data as the output of cell calculation WIMSD-B5 (ENDFVII.0) were used for the calculation. The core calculations were performed using 2 and 3 dimension diffusion code. The calculation results show that the good fuel for RSG-GAS is U7Mo-Al with maximum radial and axial power peaking factor of U7Mo-Al with high density at 20 cm control rod depth is 1.32 and 1.73 respectively and safety reactivity factor more than 1.5. The results show that all neutronic parameter are met the safety criteria. Hence U7Mo with higher density could be applied for RSG-GAS core and operated for 1500 MWD cycle length

Keywords
UMo-Al fuel, neutronic parameter, core reactivity, Batan-FUEL code, RSG-GAS core

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/LzxrCkhb87Dy

Corresponding Author
edo barlian

Institutions
a).universitas negeri medan; jl.wilem iskandar psr V medan
b).Universitas Sumatera Utara; Pasca Sarjana Program doktor Perencanaan Wilayah; JL. Dr. Masyur Medan

Abstract
In supporting the objectives of the urban zone spatial plan necessary a study of preparedness to geological natural disasters especially areas located in active fault zones to reduce the risks that will occur and prepare serious mitigation studies on disaster management with prevent, reduce risk and increase community preparedness in the face of disasters. Part of the Deli Serdang Regency is an area located in the active fault zone, in part of Pancur Batu District and parts of Namorambe District. Based on these conditions, it is necessary to look at the impact caused by active faults on the development of the area around the fault zone. The method used in this study is a quantitative method by requiring seismic hazard data which includes Peak Ground Acceleration (PGA), earthquake risk level, frequency of earthquake events, earthquake strength and seismic hazard assessment. From the results of the analysis, it is necessary to make prevention around the area that has an earthquake disaster so that it can reduce the impact of disasters in the long term and mitigation in the response in the event of a disaster by applying the Zoning Regulation and Building Code

Keywords
regional planning, fault, earthquake

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/DRGXuxH9N4tV

Corresponding Author
yaumil silvini

Institutions
1. Physics Education Study Program, State University of Medan
2,3. Lecturer in Physics Education, State University of Medan
Jl. Willem Iskandar, Pasar V Medan Estate, Percut Sei Tuan, Deli Serdang, Medan, Indonesia
*yaumilsilvini92[at]gmail.com

Abstract
Physics is the science that studies an object, and interactions between objects, also studies natural phenomena that include matter, space, and interactions between humans. Human interaction is related to culture and customs that are inherent in peoples lives. Every region in Indonesia has different customs and customs in the community. Aceh is one area that has diverse customs in the way of making food, playing games and using its musical instruments. The culture of peoples original knowledge relating to scientific physics knowledge is called ethnoscience. The study examines, analyzes the application of the concepts of temperature and heat and impulse momentum in Aceh culture. The method used is a literature study with study materials including (1) Acehnese unique culture of kekuriken, and (2) Acehnese Pisang sale typical food.

Keywords
The concepts of temperature and heat;impulse momentum;ethnoscience and Aceh culture

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/PYen6u39zCNw

Corresponding Author
Novitasari Novitasari

Institutions
a). Electromedical Research Group, Research Center for Quality and Testing Technology LIPI, Indonesia
*novitasari[at]lipi.go.id
Faculty of Medicine and Health Sciences, Warmadewa University, Indonesia

Abstract
Anthropometry is the most universally applicable, inexpensive, and non-invasive method available to evaluate the proportion, size and composition of the human body. Many research shows that elevated blood pressure and excess weight are established major risk factors for cardiovascular disease (CVD). The preliminary studies addressed issues raised by this relationship. These included the strength of relationship between hypertension and aging, cigarettes smoking, physical activity, the prevalence of hypertension at various levels of obesity, and blood glucose. On the other side, the accuracy of sphygmomanometer is crucial to give the true value of blood pressure. The failure of sphygmomanometer can change blood pressure classification in these patients. In this study, we evaluate the correlation between body weight, aging and blood pressure value as preliminary study to get the critical value of sphygmomanometer calibration. The interactions between blood pressure and body weight and aging were examined using data from 100 participants. Either the systolic and diastolic blood pressure was examined with body weight and age, then the cardiovascular disease (hypertension risk) analyze using WHO classification of blood pressure range. The correlation between blood pressure (both systolic and diastolic) with body weight shows the negative correlation (p<0.05). The odds ratio for hypertension increased by 10% for each additional body weight, compared to 6% for each year increase in age. The correlation between blood pressure with body weight is negative. Furthermore, the association between blood pressure and body weight is higher than age. It is found the new paradigm about critical value of sphygmomanometer calibration, the calibration should have specific range for the certain body weight.

Keywords
Blood pressure, body weight, spyhgmomanometer

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/Q6Ah3fE7LeaB

Corresponding Author
Liana Dwi Sri Hastuti

Institutions
Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Jl.Bioteknologi No.1 Padang Bulan, Medan Baru 20155

Faculty of Public Health Sciences, Universitas Sumatera Utara, Jl. Universitas No. 32 Padang Bulan, Medan Baru 20155

Abstract
Trash is still a problem that the solution still continues to innovate until now. Based on information by the Ministry of Environment and Forestry (KLHK), the Republic of Indonesia has released a list of cities in Indonesia based on its cleanliness level. The Deli River is one of the garbage prone spots, and the waste will accumulate and surely will pollute the environment, all garbage is in the downstream or middle, all will be down to Bagan Deli village which eventually all the garbage will be Sources of pollution and disease for communities in Bagan Deli village. Programs with waste banks have been encouraged, but the management and facilities are still lacking, with community service is expected to understand the importance of maintaining environmental hygiene and utilizing waste as a source of and able to manage the waste bank as a new search eye, sorting based on the categories of till that are more detailed and specific so as to provide convenience during the presses, also will be made miniature garbage bank counter to Well-coordinated fitting management. The result of the Survey shows the level of customer satisfaction of the Trash bank belongs to the category quite well, and need some evaluation for the improvement of Waste Bank. The last will be created special training on how to create another pilot waste bank in other environment of Bagan Deli.

Keywords
Bagan Deli, Waste, Bank

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/yEgLbHUtfeCG

Corresponding Author
Rostime Simanullang Simanullang

Institutions
Department of Biology FMIPA Universitas Sumatera Utara, Jalan Dr. Mansyur Medan, Indonesia, 20155

Abstract
Andaliman (Zanthoxylum acanthopodium DC) is an endemic plant from Northen Sumatera Indonesia that have high antioxidant. Cervical cancer is an abnormally growing cell in the cervix and then undergoes tumor growth. The number of cervical cancer cases in Indonesia was increasing every years. The aim of this study was to determine the role of andaliman methanol extract on cervical cancer. This research used 4 groups of female rats consisting of: Control positive (Normal Rats), Control Negative (Rats were Injected Benzo(&

Keywords
152

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/7CefTa9wz3Lt

Corresponding Author
Arini Herdayanti

Institutions
Physics Education, Postgraduate State University of Medan

Abstract
The purpose of this research is to develop dynamic fluid teaching aids for senior high school. Visualized aid tool based on dynamic fluid material. The methods used in research are the ADDIE development model (analysis, design, development, implementation and evaluation). This device was designed using the Arduino UNO sensor that can be connected to the sensor, the water flow sensor serves as a discharge meter, the LCD display screen serves the result of the calculation of the water flow sensor, the sensors water work so that water is not abundant in the container, and feeding as on/off. There is a certain height of water faucet that can make the students adjust the height that will be calculated flow discharge, the difference in the height of the stream on the venturimeter and the difference in gas pressure in the pitot tubes. The aid tool also have a worksheet for students. Based on the result of expert validation of aid tool is 86% and the validation of material experts on the students worksheet is 94% and efficiency on learning is 88%. The overall result of the expert validation test gets a good rating so the development of aid tool using the Arduino uno sensor and water flow sensor for dynamic fluid.

Keywords
Research Development, ADDIE, Learning Media, Dynamic Fluid aid,Feasible, Effective.

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/m8Zr4pCM6cWk

Corresponding Author
Uswatun Hasanah

Institutions
(a) Jurusan Fisika Pascasarjana Universitas Negeri Medan
(b) Dosen Fisika Pascasarjana Universitas Negeri Medan

Abstract
A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas (the working &

Keywords
stirling engine, heat , mechanical and electricity

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/WmRuMc8KJQPz

Corresponding Author
Vera Permatasari

Institutions
a) Research Center for Testing Technology, Indonesian Institute of Science, PUSPIPTEK area Setu, Tangerang Selatan 15314 Indonesia
b) Biomedical Science, Medical Faculty, Sriwijaya University, Jl.Dr.Moh Ali, Komplek RSMH Palembang 30126 Indonesia

Abstract
Endometriosis is characterized by the growth of endometrial outside the uterine cavity, which is found in women with subfertility and pelvic pain problems. The development in reproductive age and the decrease after menopause or ovariectomy prove that endometriosis is an estrogen dependent disease. Effect of the estrogen hormone depends on the binding to its receptor. Estrogen receptor alpha (ERa) polymorphisms which admit by PvuII enzyme restriction has associate to some womens disease like endometriosis. This Study aimed to determine the correlation between ERa 397 T/C with the risk of endometriosis. This study is an analytical observational study with the case control design. There were 70 samples which were divided into 2 groups: 35 cases (endometriosis group) and 35 controls (non-endometriosis group). The determination of genotypes and allotypes used PCR-RFLP method and the data analysis by chi square test a<0,05.The results showed that genotype frequencies of case group are 11,4% TT, 54,3% TC and 12% CC while genotype of control group are 34,3% TT, 51,4% TC and 14,3% CC with p value 0,032. Allele frequencies of case group are 38,6% T and 61,4% C while control group are 60% T and 40% C with p value 0,011. Conclusion: there is a significant correlation between the genotype and allel polymorphism of ERa gene 397 T/C with the risk of endometriosis.

Keywords
Polymorphism; ERa; PvuII; Endometriosis

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/wvMe9hFVqnEa

Corresponding Author
Hidayati Wijaya

Institutions
Postgraduate Physics Education Study Program UNIMED

Abstract
Abstract. The purpose of this article is to find out the integration of physics concepts in Javanese culture. Physics is very closely related to daily life. In the daily life of Javanese culture there are many concepts related to physics. The environment of traditional Javanese society always believes in ancestral messages and customs about how to behave and apply to nature. Various problem solving continues to be associated with science and technology for the growth, development and welfare of human life. In this universe, everything can be explained with the help of science, especially physics. One distinctive feature of Javanese cultures local wisdom is batik making which applies the concept of capillary physics.

Keywords
-

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/fvYdjgtPmpDy

Corresponding Author
Vera Permatasari

Institutions
Indonesian Institute of Science (LIPI), Research Center for Testing Technology,Electromedical Division
Kawasan PUSPIPTEK Gedung 417 Setu, Tangerang Selatan 15314 Indonesia

Abstract
Abstrak: The quality of medical devices is paramount to establish the anamnesis, diagnosis and also treatment of patient. Arterial pressure measurement as one of the first indicators in the Hypertension Management Guidelines requires the accuracy as well as their function. Error in the detection of blood pressure should not occur during measurement because the errors will also make failure in determining the diagnosis and therapy for hypertensive patient, related on their hypertensive classification. Clinicians requires accurate medical measurement in order to monitor patients, diagnose diseases and deliver treatments. The failure of detection will certainly have diverse effects. Preliminary studies have shown that differences in results that are generated by two types of blood pressure devices, aneroid sphygmomanometers and digital blood pressure. The differences higher 2 to 3 mmHg using digital blood pressure than aneroid sphygmomanometer. This difference could lead to a new determination of blood pressure classification and could the accuracy of blood pressure devices that are widely used in medical circles. Therefore, it is necessary for medical staff to get information about the accuracy of blood pressure devices and its critical parameters in determining blood pressure, it is also necessary for a regulation on a blood pressure classification based on the type and level of accuracy of measuring instruments.

Keywords
digital blood pressure, blood pressure classification

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/wZzu7rBgmNGh

Corresponding Author
syarifa mayly

Institutions
1 Program study of Agroecotechnology, Faculty of Agriculture, University of Al Washliyah, Medan 20155, Indonesia
2 Program study of Agrotechnology, Faculty of Science and Technology, University of Pembangunan Panca Budi, Medan 20122, Indonesia

Abstract
The study aims was to obtain the root characteristic of soybean in various biochar application. The research design used was factorial randomized design with two factors and two replications. Various biochar application used as first factor were biochar from rice husk, biochar from rice straw, without biochar. Two varieties of soybeans were used in this research were Dering and Demas. Root characteristic observed were specific root length, root length : root volum ratio, root tissue density, root to shoot ratio, root biomass ratio, root length ratio. The research result showed that the highest value of root characteristic like pecific root length, root length : root volum ratio, root tissue density were found from rice husk biochar and other root characteristic like root to shoot ratio, root biomass ratio, root length ratio which the highest value were found from without biochar application.

Keywords
root, biochar, soybeans, dryland

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/rJftQknB8gHT

Corresponding Author
Yenni amalia Siregar

Institutions
UNIMED

Abstract
This study aims to determine: Problem solving skills with a static fluid material and self efficacy. The instrument used was a test students problem solving ability and self-efficacy tests in the form of a questionnaire. Data was analyzed using ANOVA two lanes. The results showed that the ability of solving problems with static fluid material and self efficacy of the experiment better than problem solving skills with a static fluid material and self efficacy in control with the average value of problem-solving abilities to the experiment of 65.66 while in control of 63.5, problem-solving ability have high self-efficacy is better than problem solving skills that have a low self-efficacy with an average value of self-efficacy high of 76.65 and a low of 47.00 in the experimental class. While in the control class average high self-efficacy of 65.00 and a low of 53.84, and there is interaction between the static fluid material and self efficacy in affecting the ability of problem solving.

Keywords
Fluid Static, Problem Solving Ability, Self Efficacy

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/9FeaVjbRkuqf

Corresponding Author
Syukrya Ningsih

Institutions
(a) UIN Sulthan Thaha Saifuddin Jambi
Jl. Jambi-Ma.Bulian km.16 Simp. Sei. Duren
Kabupaten Muaro Jambi Provinsi Jambi
*syukryaningsih[at]uinjambi.ac.id

Abstract
The relationship between culture and waste recycling has been determined, to provide an estimate of the possible impact of cultural participation on household behavior in the sustainability meta-issue. Percentage of wastewater management methods in Jambi Province is known that waste management is still dominated by burning 60.5%, transported by officers as much as 18.4%, discharged into rivers or sea as much as 11.2%, buried in soil 6%, 3.7% removed and only 0.3% compost. We use data on household behavior to highlight the determinants of recycling of waste with culture. This analysis highlights a strong positive relationship between the tendency to take part in several cultural activities and the tendency to adhere to guidelines and recipes for waste recycling. Our empirical results suggest that policies aimed at influencing sustainable development by encouraging pro-environment behavior may be more effective when considering dimensions of cultural participation as complementary factors.

Keywords
Waste Recycling; Culture; sustainability.

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/WqrH9jZaT7PM

Corresponding Author
Widyaningrum Indrasari

Institutions
Department of Physics, Faculty of Mathematics and Science, Universitas Negeri Jakarta

Abstract
Prototype of a hybrid solar panel with a Fresnel lens concentrator and a solar tracking system has been developed in this research. This hybrid solar panels are a combination of conventional solar cells and thermoelectric generators. Solar cells work to convert solar radiation, whereas thermoelectric generator converts solar heat into electrical energy. A Fresnel lens, a refractive lens type, is used as a solar concentrator, whereas the solar drive system uses solar azimuth data. This prototype is equipped by INA219 sensor as a measure of electric current and the output voltage of solar panels. The temperature gauge uses a DS18B20 sensor, and the GY 49 MAX44009 light sensor is a light intensity detector. Solar panel drive uses MG995 servo motor and RTC module. Measured parameters are stored in the Secure Digital (SD Card) module. Through optimization, the obtained tilt angle of the solar panel is 10 degree. Meanwhile, the optimized distance of the Fresnel lens to the solar panel is 0.2 F. The addition of Fresnel lens resulted increasing of the output power of hybrid solar panel, there is 9.1 percent in the Sawah Lama-Tangerang Selatan area, and 23.83 percent in the Rawamangun - East Jakarta area.

Keywords
hybrid solar panel, Fresnel lens,concentrator, thermoelectric

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/LFev94Upnxwb

Corresponding Author
Sahid Mochtar

Institutions
Universitas Pembangunan Jaya
Universitas Islam Bandung

Abstract
Various evidence on the success of green building concepts, particularly passive strategies, in saving energy use and reducing environmental impacts has been widely shared in various scientific and popular media. The information is not only about theoretical but also best practice of green building implementation, including information about the addition of investment value, savings and profit earned on the operation. The government and the private sector have also encouraged the acceleration of its implementation through the establishment of regulations and rating tools that regulate liabilities and appeals for property industry actors to participate in implementing passive strategies as part of the implementation of green building concepts. This study aims to find out the obstacles of green building implementation through policy review and also questionnaires and interviews to stakee holders. Apparently, the policy system is still need to be completed in order to manage and control the building and also the stake holders to implement the green bulding concept.

Keywords
Policy, Regulation, Green Building, Indonesia

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/Gup9vNUxRqEQ

Corresponding Author
Amalia Ekaputri Hidayat

Institutions
Environmental Engineering Study Program, Civil Engineering Department, University of Indonesia
*Corresponding author: ssarwanto[at]eng.ui.ac.id

Abstract
Acid mine drainage (AMD) is one of the by-product from coal and mineral mining. AMD can terminally impair waterways and contaminate the water quality due to its acid characteristic and its high concentration of trace metal ions including iron, manganese, zinc, and copper. The aim of this research is to investigate the effect of competing cation in acid mine drainage on zinc adsorption using synthesized zeolite from coal fly ash. The adsorption study was conducted using batch method in synthetic AMD, which contain zinc as the primer ion and iron, manganese, copper as competing ions. The desorption study was also carried out in this study, using eluents such as, H2SO4, HNO3, and NaCl. The removal efficiency of zinc was reduced significantly with the present of other metal ions. The desorption study shown that the acidic eluents tend to destruct the synthesized zeolite, while the desorption efficiency in eluent such as NaCl was not significant either. Further research is needed to investigate more about the eluent that fit the adsorbent, the desorption time, or consider other method for the regeneration of the adsorbent.

Keywords
adsorption, desorption, acid mine drainage, zeolite

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/jkLV87fPaA4G

Corresponding Author
ZUILEN VAN BOY SINAGA

Institutions
Universitas Negeri Medan

Abstract
This study aims to: (1) Know the learning outcomes of students who are learning gography learning with problem based learning models and STAD learning models (2) to find out the geography learning outcomes of students who have independent cognitive styles, and dependent cognitive styles (3) know the interactions between learning models with cognitive styles in influencing student learning outcomes in geography. This research is a quasi-experimental research. Student learning outcomes taught by the problem based learning model are higher than students who are taught with the STAD learning model

Keywords
learning model, problem based learnig model learning, STAD learning model, cognitive style and learning Outcomes

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/LCyF39Hzv6Bf

Corresponding Author
Daniel Saputra

Institutions
a) Ph.D. Graduate Student of Agricultural Sciences, Faculty of Agriculture, Universitas Sriwijaya
b) Agricultural Engineering Study Program, Faculty of Agriculture, Universitas Sriwijaya
* drdsaputra[at]unsri.ac.id
c) Agricultural Product Technology Study Program, Faculty of Agriculture, Universitas Sriwijaya
d) Fishery Product Technology Study Program, Faculty of Agriculture, Universitas Sriwijaya, Indonesia
*Coresponding author: drdsaputra[at]unsri.ac.id

Abstract
Pempek is a traditional ethnic food originated from Palembang, South Sumatra, Indonesia. Currently, there is not exist any profiles which could be used as a determining factor for quality, originality, and ethnicity of pempek. The objective of this research was to obtain the chemical profile of pempek as a determining factor of quality, originality and ethnicity. The samples were collected from the ten famous branded vendors in Palembang. The fish used in making pempek of the samples are snake head fish, Spanish mackerel, and the mix of snake head and Spanish mackerel. The type of pempek used in this experiment was steamed cook pempek lenjer (cylindrical) type. The analysis was performed at a KAN accredited laboratory. It was found that the energy content of pempek used in this experiment was in the range of 125 to 160 kkal/100 g sample and all the pempek used had a 0% of fat. All pempek used had 17 types of amino acid, and all of them had an essential amino acid. The significant finding was that the concentration of glutamic acid was 200% of the concentration of common concentration which indicated that all the vendors used artificial mono-sodium glutamate to improve the taste of pempek. The analysis of color show that the color of pempek is a bright yellow with a little greenish. All pempek contained the mineral Ca+, Na+, and Fe+ in the various degree. Out of texture variables measured: hardness, adhesiveness, cohesiveness, springiness, gumminess, and chewiness it was found out that pempek only had the significant parameter of hardness, springiness, and gumminess. The type of fish used and the art of making pempek gave a different external surface profile which was measured with the help of Scanning Electron Microscopy. It was concluded that the chemical and physical profile found on this research could be used as database for creating a standard of identity of pempek.

Keywords
pempek, profile, standard of identity

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/CXbVFPfD3jHY

Corresponding Author
Latifah Hanum Anas

Institutions
Department of Physic Education, Postgraduate of State University of Medan

Abstract
Science and technology advances provide space for teachers to be able to create a variety of learning media that can be used in the learning process This study is aimes to determined the process of implementation of learning and improvement of students learning critical thingking with video technology media based on heat and temperature at class XI MIPA of MAN Serdang Bedagai. Video technology media based on heat temperature is a form of learning media that can accommodate student learning needs in accordance with the critical thingking of students. The method is quasi experimental type of research while subject of this research are students of class XI MIPA 1 dan XI MIPA 2 academic year 2019 / 2020 which consist of 60 students. Data collection techniques is test with the instrument of written test of essay that consist of 15 questions. The stages in this research are preliminary study, video design, research implementation and conclusions.

Keywords
Video Technology Media, Heat and Temperature, Critical Thingking

Topic
Applied Basic Science and Multidisciplinary

Link: https://ifory.id/abstract/PbQ3LAXNDhrF