scholarly journals Steganographic Model for encrypted messages based on DNA Encoding

2021 ◽  
Vol 15 (1) ◽  
pp. 43
Author(s):  
Alfian Abdul Jalid ◽  
Agus Harjoko ◽  
Anny Kartika Sari
Keyword(s):  
Human Life ◽  
Algorithmic Complexity ◽  
Test Results ◽  
Complementary Strand ◽  
Dna Encoding ◽  
Least Significant Bit ◽  
Base Pairing ◽  
Average Value

Information has become an inseparable part of human life. Some information that is considered important, such as state or company documents, require more security to ensure its confidentiality. One way of securing information is by hiding the information in certain media using steganography techniques. Steganography is a method of hiding information into other files to make it invisible. One of the most frequently used steganographic methods is Least Significant Bit (LSB).In this study, the LSB method will be modified using DNA Encoding and Chargaff's Rule. Chargaff's Rule or complementary base pairing rule is used to construct a complementary strand. The modification of the LSB method using DNA encoding and Chargaff's Rule is expected to increase the security of the information.The MSE test results show the average value of the LSB method is 0.000236368, while the average value for the DNA Encoding-based Steganography method is 0.000770917. The average PSNR value for the LSB method was 76.82 dB while the DNA Encoding-based Steganography method had an average value of 70.88 dB. The time of inserting and extracting messages using the Steganography method based on DNA Encoding is relatively longer than the LSB method because of its higher algorithmic complexity. The message security of the DNA Encoding-based Steganography method is better because there is encryption in the algorithm compared to the LSB method which does not have encryption.

scholarly journals Peningkatan Hasil Belajar IPA Melalui Model Pembelajaran Think-Talk-Write Bervariasi pada Siswa Kelas VIII.H SMP Negeri 2 Banyudono Semester 1 Tahun Pembelajaran 2013/2014

2016 ◽  
Vol 8 (2) ◽  
pp. 11
Author(s):  
DWI GIYARNI
Keyword(s):  
Student Achievement ◽  
Initial Conditions ◽  
Hypothesis Test ◽  
Human Life ◽  
Test Results ◽  
Learning Models ◽  
Average Value ◽  
School Year ◽  
Improve Student Achievement ◽  
Year 2013

<p class="5abstrak">Application of learning models talk think write varied in an effort to improve student achievement and to increase the interest, motivation, liveliness, creativity, and cooperation of the students in the class IPA maple VIII.H half SMP Negeri 2 Banyudono of the school year 2013/2014. Hypothesis test results obtained from VIII.H grade students of SMP Negeri 2 Banyudono maple IPA 2012/2013 school year on Standards of Competence Understanding the Different Systems In Human Life that: 1) the results of student achievement has increased from the initial conditions to final conditions of the first cycle and continued to the second cycle there is increased as follows: for the highest value of 80 increased to 90 in the first cycle, and increased again to 95 in the second cycle, to the lowest value of 50 rose to 75 in the first cycle, and rose again to 76 in the second cycle, for the average value of 66.25 on Prasiklus rose to 78.61 in the first cycle, and rose again to 85.08 in the second cycle, students complete of 15 (41.67%) rose to 36 students (100%) cycles I, and the second cycle, for students not yet complete of 21 students dropped to 0 students in the first cycle and the second cycle. 2) The process of learning: increased from the initial conditions to final conditions of the first cycle and proceed to the second cycle: Interest 1.95 (or less) to 3.23 (good) and increased again to 3.47 (good). Motivation 2.03 (enough) to 3.13 (good) and increased again to 3.46 (good). Liveliness 1,99 (less) to 3.18 (good) and increased again to 33.45 (good). Creativity 1.83 (or less) to 3.13 (good) and increased again to 3.35 (good) Cooperation 2.04 (enough) to 3.22 (good) and increased again to 3.53 (good).</p><p class="5abstrak"> </p><strong>Keywords</strong>:     IPA, Model <em>think-talk-write</em>, Interest, Motivation, Liveliness and Creativity, Cooperation, Results Achievemen

PENGARUH MODEL PEMBELAJARAN KELILING KELOMPOK (ROUND CLUB) TERHADAP KETERAMPILAN MENULIS LAPORAN PERJALANAN SISWA KELAS V SDN 01 NAGARI BUKIK SIKUMPA

2020 ◽  
Author(s):  
Wirda Linda
Keyword(s):  
Standard Deviation ◽  
Performance Test ◽  
Writing Skills ◽  
Learning Model ◽  
Homogeneity Test ◽  
Test Results ◽  
Class V ◽  
Average Value ◽  
Normality Test ◽  
Lecture Method

This research is motivated by the low desire of students in writing travel reports. The lack of students' knowledge of the report concept, the lack of students' knowledge of the 5W + 1H report points of good and correct language, the lack of students' knowledge of the spatial, time and topic pattern and not yet reached KKM 75. The method used by the teacher has not been interesting, lecture method. The purpose of this study is to describe the skills of writing travel reports by using Round Club learning model which is viewed from the aspect of understanding the report concept, the use of 5W +1H report points, the spatial, time, and topic pattern.The population of this study is the students of class V Lessons Year 2017/2018 which amounted to 2 classes with the number 80. The sample of research as much as two classes taken by the sample of propotional.Class V.1 as experimental class and class V.2 as control class. The research instrument used is performance test. Provide an assessment by specifying the subject of the 5W + 1H report, as well as the spatial, time and topic pattern. Data were analyzed by 't' test by first testing normality, homogeneity, and hypothesis testing.The results showed that the average control class 68 with more than enough qualifications with standard deviation 16.96. 83 experimental class with good qualification and standard deviation of 15.42 and there is a significant influence on the result of writing skill of class V SDN 01 Nagari Bukik SikumpaSubdistrict, Lima Puluh Kota. This is evidenced by the average value of writing skills in the experiment class higher than the average value in the control class. Normality test results indicate that the two sample classes of  Lo  values in the control class -0.2141 are smaller than the normal 0.190 Lt distributed. Homogeneity test results that the variation of this study is homogeneous at a real level of 0.05, because Ftable 2.16 > Fhitung 1.21 and the results of data analysis then obtained = 2.78 > 1.70 t table, so H0 rejected and H1 accepted. It can be concluded that there is Influence. Using  Learning  Model of Student Group Writing  Skills Travel Report of students of class V SDN 01 Nagari Bukik Sikumpa Subdistrict, Kabupaten Lima Puluh Kota.KeyWords: model pembelajaran round club, menulis laporan perjalanan.

scholarly journals Pengaruh Metode Pembelajaran Mind Mapping terhadap Hasil Belajar pada Pokok Bahasan Hukum-Hukum Dasar Kimia Siswa Kelas X Semester Ganjil di SMA Negeri 2 Langowan

2019 ◽  
Vol 1 (2) ◽  
pp. 107
Author(s):  
Frindly Makarawung ◽  
I Dewe Ketut Anom ◽  
John Lombok
Keyword(s):  
Student Learning ◽  
Learning Outcomes ◽  
Student Learning Outcomes ◽  
Control Group ◽  
Test Results ◽  
Mind Mapping ◽  
Learning Methods ◽  
Control Group Design ◽  
Average Value ◽  
Post Test

This research aims to determine the effect of mind mapping learning methods on the basic laws of chemistry toward learning outcomes of students of class X MIPA in SMA Negeri 2 Langowan. The sample used in this study were all students of class X MIPA of SMA Negeri 2 Langowan. This research uses an experimental method, with the research method used is Quasi Experiment  with Nonequivalent Control Group Design design. The research data were obtained from post-test results. Obtained the average value of student learning outcomes Experiment class is 85. The results showed the value of tcount = 15.7> ttable = 2.21, so H0 was rejected and H1 was accepted. Based on the results of the research it can be concluded that there is an influence on student learning outcomes on the basic laws of chemistry using mind mapping learning methods.

scholarly journals EFEKTIVITAS CAPAIAN KOMPETENSI BELAJAR SISWA DALAM PEMBELAJARAN SAINS DI SEKOLAH DASAR

2017 ◽  
Vol 1 (2) ◽  
Author(s):  
Yanti Fitria
Keyword(s):  
Elementary School ◽  
Learning Outcomes ◽  
Student Learning Outcomes ◽  
Test Results ◽  
Qualitative And Quantitative ◽  
Average Value ◽  
Fourth Class ◽  
Fourth Grade Students ◽  
Teachers And Students ◽  
Inquiry Method

This study aimed to describe effecitivity of the learning outcome IPA using inquiry method. This type of research is the Classroom Action Research (CAR). Research procedures conducted through four stages, namely planning, implementation, observation, and reflection. The study uses a qualitative and quantitative approach. Subjects were teachers and students of fourth class in elementary school 08 Padang City. Data was obtained from the results of observations and test results of learning. The research was conducted by two cycles and each cycle consisting of two meetings. The results of the research that has been conducted every cycle seen an increasein the average value of student learning outcomes are: (a) the cognitive aspects of 75 to 93, (b) the affective aspects of 74 to 95, and (c) psychomotor aspects from 76 to 94. It can be concluded that the CAR using the inquiry method can improve learning outcomes of science fourth grade students of fourth class in the state elementary school 08 Padang City.Key words: Learning competency; science learning; inquiry method

scholarly journals Analysis of The Rock Fracture on Uniaxial Compressive Strength Test

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Edward Dinoy ◽  
Yohanes Gilbert Tampaty ◽  
Imelda Srilestari Mabuat ◽  
Joseph Alexon Sutiray Dwene
Keyword(s):  
Compressive Strength ◽  
Uniaxial Compressive Strength ◽  
Poisson Ratio ◽  
Rock Fracture ◽  
Strength Test ◽  
Maximum Pressure ◽  
Test Results ◽  
Average Value ◽  
Compressive Strength Test ◽  
Uniaxial Compressive Strength Test

The compressive strength test is one of the technical properties or compressive strength tests that are commonly used in rock mechanics to determine the collapse point or the elasticity of rock against maximum pressure. The rock collapse point is a measure of the strength of the rock itself when the rock is no longer able to maintain its elastic properties. The purpose of this test is to find out how long the rock maintains its strength or elasticity properties when pressure is applied, and to find out the difference between the strength of compact rock and rock that has fractures when pressure is applied. Rocks that have fractures will break more easily or quickly when pressure is applied compared to compact rocks. This analysis is carried out by comparing the rock strength of each sample, both those that have fractures and compact rocks. To find out these differences, laboratory testing was carried out. The test results show the value (compressive strength test 57.76 MPa), (elastic modulus 5250.000MPa), (Poisson ratio 0.05) and the average value of rock mechanical properties test (axial 0.91), (lateral-0.279), and (volumetric 0.252) . Based on the test results above, it shows that rocks that have fractures will break more easily when pressure is applied, compared to compact rocks that have a long time in the uniaxial compressive strength test.

scholarly journals Improving Mathematics Learning Outcomes Through Cooperative Learning Model Type NHT In Grade VIII A Students MTS Muhammadiyah

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Muhamad Ruslan Layn
Keyword(s):  
Cooperative Learning ◽  
Learning Outcomes ◽  
Mathematics Learning ◽  
Learning Model ◽  
Male Students ◽  
Average Score ◽  
Test Results ◽  
Average Value ◽  
Class Viii ◽  
Pythagoras Theorem

This research is a Classroom Action Research (PTK), which aims to improve the learning outcomes of mathematics through NHT type cooperative learning model in students of class VIII A MTs. Muhammadiyah conducted collaboratively between researchers and teachers of mathematics studies. In the implementation of this research, it is done by giving group worksheet and observation sheet of student activity using NHT type cooperative learning model after giving an explanation about Pythagoras Theorem material as much as two cycles that cycle I and II. After being given group worksheets then conducted the assessment includes assessment of test results of a cycle I and cycles II and group worksheet to students that is by applying learning model of cooperative learning type NHT. The subjects of this study were students of class VIII A which amounted to 20 students consisting of 15 male students and 5 female students. Techniques of collecting data in research are this observation and test. The data obtained were then analyzed. The results of the study showed that the implementation using NHT type cooperative learning model on Pythagoras Theorem material. the ability of students in solving problems on the material above has increased. With the increase of the average value of students in the first cycle was 43.45 and increased in cycle II 83.90. Improvement of student learning outcomes to mathematics learning using NHT type cooperative learning is good. This is indicated by the average value of group learning outcomes in cycle I 60.00 or being in the medium category and the average score of the learning outcomes of the group in cycle I 82.50 or in the high category. This shows the result of increased mathematics learning after conducting cooperative learning model of NHT type

scholarly journals Rancang Bangun Sistem Informasi Rekam Medis (Studi Kasus: Klinik PKU Muhammadiyah Gandrungmangu)

2021 ◽  
Vol 1 ◽  
pp. 149-156
Author(s):  
Fathan Asyhari ◽  
Aridhanyati Arifin
Keyword(s):  
Medical Record ◽  
Record Management ◽  
Test Results ◽  
Medical Record Number ◽  
Average Value ◽  
User Management ◽  
Record Data ◽  
System Input ◽  
Manual Recording ◽  
Management Reporting

Health Services at the PKU Muhammadiyah Gandrungmangu Clinic have not made much use of information technology. Documentation of patient medical records still uses a manual recording system, causing various obstacles; for example, officers often find the same medical record number and difficulties making reports. Thus, creating a medical record information system is necessary to help manage medical record data electronically. The system was developed using the prototyping method. This system has several features: medical record management, user management, reporting system, input checking feature for vital sign results, uploading feature for supporting examination results, and patient queuing system for each poly. The results of the user convenience test using the SEQ method obtained an average value of 6 and 7. The usability test results using the SUS method also got a good response from the questionnaire questions given to the respondents, which got a total score of 90.6, meaning that the system has an excellent usability level.

scholarly journals Pelatihan Upaya Kesehatan Kerja Bagi Masyarakat Cipayung Kota Depok

2020 ◽  
Vol 4 (4) ◽  
pp. 605-610
Author(s):  
Azizah Musliha Fitri ◽  
Fajaria Nurcandra ◽  
Terry Yuliana Rahadian Pristya
Keyword(s):  
Test Scores ◽  
Residential Location ◽  
Wilcoxon Test ◽  
P Value ◽  
Test Results ◽  
Average Value ◽  
Post Test ◽  
Level Of Knowledge ◽  
Initial Survey ◽  
The Village

An initial survey that had been done  found that the location of the settlement where residents of cipayung lived was very close to the location of the Cipayung Landfill. The unhealthy environment tended to cause disease and any other health problems, so that efforts needed to be made to overcome this, one effort that could be done is training on health . This counseling activity was attended by 21 residents living in the village of West Bulak which is the closest residential location to the Cipayung landfill site. Wilcoxon test results on the pre-test and post-test scores of participants showed a P- value of 0.001 which means that there were differences in the level of knowledge of the participants after attending counseling. The average value of pre-test and post-test had a difference of 34.5 shows that counseling that has been carried out is able to increase knowledge.

scholarly journals KORELASI ANTARA POLA PEMBINAAN AKHLAK DENGAN PERILAKU PESERTA DIDIK KELAS XI PONDOK PESANTREN DARUL AMAN GOMBARA MAKASSAR

2020 ◽  
Vol 9 (1) ◽  
pp. 46
Author(s):  
Muhammad Rusmin B
Keyword(s):  
Moral Development ◽  
Correlation Coefficient ◽  
Strong Correlation ◽  
Boarding School ◽  
T Test ◽  
Test Results ◽  
Average Value ◽  
The Relationship ◽  
Correlation Level

The results of the moral development of the students of class XI of the Darul Aman Gombara Islamic Boarding School in Makassar are quite good. This is based on a questionnaire distributed and interviews with several teachers, not found any students who have committed acts that violate the norms of behavior / morals. Behavior of students of class XI Darul Aman Gombara Makassar Islamic Boarding School which obtained the highest score was 87 and the lowest score was 67. The average value obtained from 30 students was 78.3. So it can be concluded that the behavior of students of class XI Darul Islamic Boarding School safe in Gombara Makassar is included in both categories. The relationship between moral development and the behavior of students in class XI Darul Aman Gombara Islamic Boarding School Makassar, namely the level of relationship is classified as very strong. In the correlation coefficient table and the t test results obtained rtable is 0.99> 0.361, then H0 is rejected and H1 is accepted. This can be concluded that there is a correlation or the relationship between moral development with the behavior of students of class XI Darul Aman Gombara Islamic Boarding School in Makassar, with a very strong correlation level.

scholarly journals IoT system terpadu untuk pengelolaan sarang lebah

JURNAL ELTEK ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 9
Author(s):  
Vivien Arief Wardhany ◽  
Vivien Arief Wardhany ◽  
Alfin Hidayat
Keyword(s):  
Honey Bees ◽  
Nutritional Value ◽  
Social Insect ◽  
Human Life ◽  
Web Server ◽  
Load Cell ◽  
Integrated System ◽  
Graphical Form ◽  
Test Results ◽  
Android Application

Lebah madu adalah jenis serangga social yang hidup berkoloni. Lebah memiliki manfaat bagi kehidupan manusia yaitu dalam proses penyerbukan tanaman serta menghasilkan madu yang dapat dikonsumsi karena memilki nilai gizi yang tinggi. Pada sistem peternakan lebah modern ada beberapa hal yang perlu diperhatikan yaitu iklim, lokasi sarang lebah dengan ketersediaan tanaman (bunga) yang menjadi sumber makan bagi lebah dan material sarang lebah. Pada penelitian ini telah dibuat suatu sistem terpadu yang terdiri dari 3 bagian penyusun sistem yaitu hardware yang terdiri dari sensor suhu, kelembaban, load cell dan geo lokasi (penentu lokasi) berikutnya adalah software yang terdiri dari Web Server dan aplikasi Android yang berisi data hasil pembacaan sensor yang disajikan dalam bentuk grafik sehingga memudahkan pembacaan hasil monitoring dari hardware, serta notifikasi apabila tiba saat pemanenan sarang atau kondisi suhu dan kelembaban yang tidak sesuai dengan standar tidak terpenuhi. Hasil pengujian sistem ini didapatkan bahwa Suhu optimal pada kandang lebah dapat dipertahankan dengan aktuator. Aktuator dapat mepertahankan suhu dari 34,4 ℃ ke 32,9℃ selama 1 menit 5 detik dan dari 31,2 ℃ ke 32,2 ℃ selama 1 menit 15 detik. Aplikasi web dan android ini mempermudah para peternak lebah untuk mengelola kondisi sarang lebah dari hasil pengujian untuk monitoring kondisi sarang lebah dapat berjalan dengan baik, dimana data yang ditampilkan adalah suhu, kelembaban dan berat. Honey bees are a type of social insect that live in colonies. Bees have benefits for human life, namely in the process of pollinating plants and producing honey that can be consumed because of their high nutritional value. In the modern beekeeping sistem, there are several things that need to be considered, namely the climate, the location of the beehive and the availability of plants (flowers) which are a source of food for bees and beehive materials. In this research, an integrated system consisting of 3 parts of the system has been created, namely Hardware consisting of temperature, humidity, load cell and geo location sensors. Next is the software consisting of a Web Server and an Android application that contains reading data. sensors are presented in graphical form to facilitate reading of monitoring results from Hardware, as well as notifications when nest harvesting arrives or temperature and humidity conditions that do not comply with standards are not met. The test results of this system show that the optimal temperature in the beehive can be maintained with an actuator. The actuator can maintain temperature from 34.4 ℃ to 32.9 ℃ for 1 minute 5 seconds and from 31.2 ℃ to 32.2 ℃ for 1 minute 15 seconds. This Web and Android application makes it easier for beekeepers to manage the conditions of the beehive. From the test results for monitoring the conditions of the beehive, it can run well, where the data displayed is temperature, humidity and weight.  

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