scholarly journals A, Dwi Rindi PERBANDINGAN UJI METABOLIT SEKUNDER PADA EKSTRAK BUAH, KULIT, DAN DAUN MAJA DENGAN METODE SPEKTROFOTOMETRI UV-VIS

2021 ◽  
Vol 8 (1) ◽  
pp. 39-48
Author(s):  
Dwi Rindi Atika
Keyword(s):  
Antioxidant Activity ◽  
Secondary Metabolites ◽  
Random Sampling ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Extraction Methods ◽  
Leaf Extracts ◽  
Central Java ◽  
Fruit Skin ◽  
Metabolite Content

Introduction Some plants in Indonesia contain secondary metabolites and antioxidants, one of which is the Maja Plant. The part of the maja plant used in this research is the structure of the plant which includes the fruit, skin and leaves because it is thought to have antioxidant content. Purpose  this study was to compare secondary metabolites found in the fruit, skin and leaves of maja. And to determine the antioxidant activity in these samples. Method experimental study method was used in this research. The population used is the maja plant. Samples were obtained from the Slerok Village, Tegal City, Central Java using the simple random sampling technique. Results The results yield extracts of maja fruit, skin, and leaves were 48,5%, 90,4% and 32,8%, respectively. The fruit, skin and leaf extracts of maja have the same secondary metabolite content in the form of tannins, alkaloids (Wagner), and vitamin C. While the IC50 obtained in the fruit, skin and leaf extracts of maja are 2897,3434 ppm, 7321,49 ppm, and 37,0937 ppm. Conclusion of this study is that there are secondary metabolites in the extracts of fruit, skin and leaves of maja. And the strongest antioxidant activity is found in maja leaf extract. Suggestion Further researchers are expected to be able to carry out research again with different extraction methods in order to know the results of different extraction methods. 

scholarly journals Antioxidant activity of soybean and gembus tempeh

2021 ◽  
Vol 10 (1) ◽  
pp. 83
Author(s):  
Sunarti Sunarti ◽  
Rosyida Awalia Safitri ◽  
Agustina LN Aminin ◽  
Mohammad Sulchan ◽  
Banundari Rahmawati
Keyword(s):  
Antioxidant Activity ◽  
Random Sampling ◽  
Functional Food ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Traditional Foods ◽  
Cross Sectional ◽  
Ethanol Extraction ◽  
Antioxidants Activity ◽  
Dpph Method

Soybean tempeh and <em>gembus </em>tempeh are traditional foods that have long been known in Indonesia, which in a modern way are classified as functional food. Various studies related to the antioxidant activity of soybean and <em>gembus </em>tempeh has been reported. This study aimed to compare the antioxidant capacity of soybean tempeh and <em>gembus </em>tempeh that are circulating in the community. The results of the research are expected to be an evaluation of soybean tempeh and <em>gembus </em>tempeh quality available in the market. The results of this research are expected to be an evaluation of soybean tempeh and <em>gembus </em>tempeh quality available in the market. The research design was a cross-sectional experimental study to measure antioxidants activity of 31 soybeans tempeh and 29 <em>gembus </em>tempeh. Sample of this study was selected through simple random sampling technique. The measurement of antioxidant activity carried out was the 2.2-diphenyl 1-picrylhydrazyl (DPPH) method; ethanol extraction of 95%. Results revealed that the antioxidant activity of <em>gembus </em>tempeh was significantly higher than soybean tempeh; (32.521; 19.831) vs., (17.016; 13.195), respectively.

scholarly journals Marsela Fishing Habits (Parachromis managuensis) In Penjalin Reservoir Brebes, Central Java

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Dewi Kresnasari ◽  
Anggun Dwita Darajati
Keyword(s):  
Random Sampling ◽  
Eating Habits ◽  
Negative Impact ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Fish Population ◽  
Native Fish ◽  
Introduced Fish ◽  
Central Java ◽  
Fish Samples

Abstract. The presence of introduced fish populations in the Penjalin Reservoir is increasing, one of the dominant ones being caught is Marsela (Parachromis managuensis). It is feared that this fish population will continue to increase and will have a negative impact on other organisms, especially native fish communities. This study aims to determine the eating habits of Marsela fish, the composition of the type of food and its relationship to the abundance of plankton in the waters. This research was conducted in September-October 2018. The method used was CPUE with a sampling technique that is Simple Random Sampling. Sampling of fish in one day is done 6 times, namely at 05:00, 11:00, 17:30, 21:00, 00:00, and 03:00. Fish samples obtained are then grouped according to length and then an analysis of the contents of the stomach. The results showed that in the Penjalin Reservoir the percentage of phytoplankton presence was 96% with the highest abundance found in the Bacillariophyta group. Marsela is an omnivorous fish with popular foods are Chlorophyta and Charophyta. However, in adulthood Marsela fish also eat animals.Keywords: Marsela Fish (Parachromis managuensis), Fish Eating Habits, Penjalin Reservoir

Investigation of Online Learning Satisfaction During COVID 19: In Relation to Academic Achievement

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Abdul Basith ◽  
Rosmaiyadi Rosmaiyadi ◽  
Susan Neni Triani ◽  
Fitri Fitri
Keyword(s):  
Academic Achievement ◽  
Online Learning ◽  
Random Sampling ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Research Data ◽  
Student Academic Achievement ◽  
Learning Satisfaction ◽  
High Level ◽  
The Relationship

The aim of this research is; 1) investigating the level of online learning satisfaction among students during COVID 19; 2) analyzing the influence of differences in gender, years of study, major in determining online learning satisfaction among students during COVID 19; 3) to analyze the relationship between online learning satisfaction and student academic achievement during COVID 19. The population was 656 students at STKIP Singkawang, and then a sample of 357 students (87 males and 270 females) was taken using a simple random sampling technique. The instrument in this study was adapted from Aman's Satisfaction instrument, which was then used to collect research data. Data analysis using SPSS with descriptive statistical techniques, MANOVA, and correlation. The results showed that online learning satisfaction was at a high level, meaning that students were satisfied with the online learning that had been implemented. The major differences have a significant effect on determining online learning satisfaction. Intercorrelation shows that there is a significant relationship on each indicator of online learning satisfaction with academic achievement, meaning that the higher the satisfaction felt by students in online learning, the student's academic achievement will increase.

E-Voting Kepala Desa dan Modal Sosial

2019 ◽  
Vol 2 (6) ◽  
pp. 759
Author(s):  
Khaulah Afifah ◽  
Lala M Kolopaking ◽  
Zessy Ardinal Barlan
Keyword(s):  
Social Capital ◽  
Random Sampling ◽  
Qualitative Data ◽  
Sampling Technique ◽  
Cost Effective ◽  
Simple Random Sampling ◽  
Community Based ◽  
Time Saving ◽  
The Social ◽  
Voting System

Head of a village election with e-voting system is a new thing for community The success level of e-voting system can be reached by fulfil several principles in order to the implementation going effective and the result of the election can be accepted by all. The objectives of this research is to analyze the relation between the success level of e-voting system with social capital of the community. This research is carried out with the quantitative approach and supported by qualitative data. This research takes 60 respondents using simple random sampling technique. The results showed that the success level of e-voting has a correlation with the level of social capital of the community. Based on the field study, the social capital of the community is classified as high. The high social capital makes the implementation of e-voting successful and the success level is also high, because in the election ten years ago occurred a conflict. The community considers e-voting easier and more practical, cost effective and time-saving, and the results of e-voting are also reliable. A practical and fast of e-voting system can be a solution especially for “rural-urban” community who are busy or work outside the village.Keywords: E-voting, the success level of the system, social capital Pemilihan kepala desa dengan sistem e-voting merupakan hal yang baru bagi masyarakat. Keberhasilan penerapan sistem e-voting dilihat dari terpenuhinya beberapa prinsip agar penerapannya berlangsung efektif dan hasilnya dapat diterima oleh seluruh masyarakat. Penelitian ini bertujuan untuk menganalisis hubungan tingkat keberhasilan sistem e-voting dalam pemilihan kepala desa dengan tingkat modal sosial masyarakat. Bentuk penelitian ini adalah penelitian kuantitatif yang didukung oleh analisis data kualitatif. Penelitian ini mengambil enam puluh responden dengan teknik simple random sampling. Hasil penelitian menunjukkan bahwa tingkat keberhasilan e-voting memiliki hubungan dengan tingkat modal sosial masyarakat. Berdasarkan kajian di lapang, modal sosial masyarakat tergolong tinggi. Tingginya modal sosial tersebut membuat pelaksanaan e-voting berhasil dan tingkat keberhasilannya juga tergolong tinggi karena pada pemilihan sepuluh tahun silam sempat terjadi konflik. Masyarakat menganggap sistem evoting lebih mudah dan praktis, hemat dalam segi biaya dan waktu, serta hasil dari pemilihan juga dapat dipertanggungjawabkan. Sistem e-voting yang praktis dan cepat dapat menjadi solusi khususnya bagi masyarakat daerah “desa-kota” yang memiliki kesibukan atau pekerjaan di luar desa.Kata Kunci: E-voting, keberhasilan sistem, modal sosial. 

Kapasitas Adaptasi dan Resiliensi Komunitas Menghadapi Bencana Erupsi Gunung Merapi

2019 ◽  
Vol 2 (5) ◽  
pp. 617
Author(s):  
Nyimas Ayu Dillashandy ◽  
Nurmala K Panjaitan
Keyword(s):  
Adaptive Capacity ◽  
Random Sampling ◽  
Qualitative Data ◽  
Sampling Method ◽  
Sampling Technique ◽  
Community Resilience ◽  
Simple Random Sampling ◽  
Quantitative Approach ◽  
Institutional Memory ◽  
Innovative Learning

Mount Merapi eruption has occurred several times in Indonesia and the biggest eruption that last occurred in 2010. The community were suffered losses and were affected by eruptions. The purposes of this research are to analyze community resilience, to analyze the level of vulnerability, and to analize the community adaptive capacity. The research using a quantitative approach supported by qualitative data. Simple random sampling technique is used as the sampling method and the informant was taken purposively. The results of this research showed that when the eruption occurred the community has a high vulnerability. The adaptive capacity is also high with innovative learning based on institutional memory and supported by the connectedness. Communities achieve resilience and can adapt to changes with high adaptive capacity.  Keywords: adaptive capacity, community resilience, eruption, vulnerability ABSTRAK Erupsi Gunung Merapi sudah terjadi beberapa kali di Indonesia dan erupsi terbesar yang terjadi terakhir kalinya yaitu pada tahun 2010. Komunitas mengalami berbagai kerugian dan terkena dampak dari erupsi. Tujuan dari penelitian ini adalah untuk menganalisis resiliensi komunitas, menganalisis tingkat kerentanan komunitas, dan menganalisis kapasitas adaptasi komunitas. Penelitian ini dilaksanakan dengan menggunakan pendekatan kuantitatif yang didukung oleh data kualitatif. Pemilihan responden dilakukan dengan teknik sampel acak sederhana sedangkan pemilihan terhadap informan dilakukan secara sengaja. Hasil penelitian ini menunjukkan bahwa saat erupsi terjadi komunitas memiliki kerentanan yang tinggi. Kapasitas adaptasi komunitas tinggi dengan adanya innovative learning yang didasari oleh pengetahuan dan pengalaman dan didukung oleh jaringan yang dimiliki. Komunitas berhasil mencapai resiliensi dan dapat beradaptasi dengan perubahan-perubahan dengan kapasitas adaptasi yang tinggi.Kata kunci : kapasitas adaptasi, kerentanan, erupsi, resiliensi komunitas

Peran Kedisiplinan Belajar dan Kecerdasan Matematis Logis Dalam Pembelajaran Matematika

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Supardi Supardi
Keyword(s):  
Mathematics Achievement ◽  
Multiple Regression ◽  
Random Sampling ◽  
Survey Design ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Normality Test ◽  
Simultaneous Impact ◽  
Inferential Analysis ◽  
Test Requirements

<p>The purpose of this study was to determine the influence of learning discipline <br />and logical mathematical intelligence on mathematics achievement. This study is a survey design. This research did in student class XI IPA SMA Negeri 98 Jakarta semester 2012/2013. The sample taken by simple random sampling technique, involved 40 students. The instrument were in the forms of questionnaires and tests. The data were analyzed first by test requirements, the normality test, linearity and multicollinearity. Based on the fulfillment of the criteria in terms of the tes analyzed, inferential analysis to the test the research hypothesis. The data were analyzed using correlation and multiple regression. The findings showed that (1) learning discipline and logical mathematical intelligence had a positive and significant simultaneous impact on mathematics achievement. (2) learning discipline had a positive and significant impact on mathematics achievement. (3) logical mathematical intelligence had a positive and significant impact on mathematics achievement. </p>

PENGARUH KEPEMIMPINAN DAN MOTVASI KERJA TERHADAP KUALITAS PELAYANAN PUBLIK (STUDI KASUS PADA KANTOR KEMENTERIAN AGAMA SUNGAI PENUH )

2020 ◽  
Author(s):  
Pahrizal
Keyword(s):  
Data Analysis ◽  
Service Quality ◽  
Public Service ◽  
Random Sampling ◽  
Secondary Data ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Primary Data ◽  
Analysis Techniques ◽  
Intervening Variables

The research is proposed to test the influence of Leadership and Motivation Work on Public Service Quality. The population in this study was the Kantor Kementerian Agama Sungai Penuh who had received the last 1 year service at the Kantor Kementerian Agama Sungai Penuh, amounting to 260 people. Furthermore, by using the Slovin formula, a sample size of 158 people was chosen with a sampling technique based on Simple Random Sampling. This study uses primary data and secondary data. Data analysis techniques used are path analysis and hypothesis testing using t test with data analysis using SPSS version 20. The results of the study based on showing that partially the Leadership and motivation work have a positive and significant effect on Public Service Quality. The results also show that motivation work variables act as intervening variables between Leadership and Public Service Quality.

Pengaruh Pembelajaran Daring Berbantuan Laboratorium Virtual Terhadap Minat dan Hasil Belajar Kognitif Fisika

2020 ◽  
Vol 3 (2) ◽  
pp. 351-359
Author(s):  
Egidius Dewa ◽  
Maria Ursula Jawa Mukin ◽  
Oktavina Pandango
Keyword(s):  
Online Learning ◽  
Learning Outcomes ◽  
Random Sampling ◽  
Cognitive Learning ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Virtual Labs ◽  
A Value ◽  
Virtual Lab ◽  
Learning Interest

Abstrak: Tulisan ini bertujuan untuk mengetahui pengaruh pembelajaran daring berbantuan laboratorium virtual terhadap minat belajar fisika peserta didik dan mengetahui pengaruh pembelajaran daring berbantuan laboratorium virtual terhadap hasil belajar kognitif fisika peserta didik. Jenis penelitian ini adalah quasi eksperimen dengan desain eksperimen one group pretest posttest. Sampel penelitian ini adalah peserta didik kelas X MIPA 1 yang berjumlah 33 orang yang ditentukan dengan teknik simple random sampling. Instrumen yang digunakan dalam penelitian ini adalah tes hasil belajar kognitif dan angket minat belajar peserta didik. Hasil analisis data dapat disimpulkan bahwa ada pengaruh pembelajaran daring berbantuan laboratorium virtual terhadap minat belajar peserta didik dengan nilai sig (2-tailed) lebih kecil dari 0,05 (0,0063 < 0,05) dan ada pengaruh pembelajaran daring berbantuan laboratorium virtual terhadap hasil belajar kognitif peserta didik dengan nilai sig (2-tailed)  lebih kecil dari 0,05 (0,000 < 0,05) Abstract: This article aims to determine the influence of online learning with virtual labs on the learning interest of students ' physics and to know the influence of online learning with virtual labs on cognitive learning outcomes of student physics. This type of research is a quasi experiment with the experimental design of one group Pretests posttest. This research sample is a student of class X MIPA 1 which amounted 33 people determined with simple random sampling technique. The instruments used in this study are cognitive learning results test and Angket learning interest learners. Data analysis results can be concluded that there is a virtual lab-assisted online learning influence to the learning interest of learners with a value of sig (2-tailed) smaller than 0.05 (0.0063 < 0.05) and there is a virtual lab-assisted online learning influence to the outcome of the students ' cognitive learning with a sig (2-tailed) value smaller than 0.05 (0.000 < 0.05).

scholarly journals Constraints to livelihood diversification of rural farmers in selected areas of Patuakhali district

2019 ◽  
Vol 44 (2) ◽  
pp. 355-365 ◽  
Author(s):  
PK Mittra ◽  
MGR Akanda
Keyword(s):  
Random Sampling ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Family Education ◽  
Livelihood Diversification ◽  
Annual Income ◽  
Interview Schedule ◽  
Organizational Participation ◽  
Rural Farmers ◽  
Medium Level

The present study was aimed at determining the constraints confronted by the farmers in livelihood diversification. The purposes of this study were to determine the extent and nature of livelihood diversification of the farmers and also to explore relationships of 13 selected characteristics of the farmers with their livelihood diversification. There were a total of 1270 farmers in the 5 villages constituted the population of the study, out of which 10 percent of the total farmers were selected through simple random sampling technique. This gave a sample size of 127 such farmers. Data were collected by the researcher himself with the help of pre-tested interview schedule during 15 February 2013 to 30 March, 2013. The livelihood diversification scores of the respondents ranged from 0.22 to 0.79 with an average of 0.41. It is seen that more than half of the farmers 53.5% had medium level of livelihood diversification compared to 19.7 percent of them having low livelihood diversification and 26.8 percent had high livelihood. Out of 13 selected characteristics of the farmers, seven of those viz. education, family education, income generating experience, household annual income, communication exposure, organizational participation and attitude towards livelihood diversification had positive significant relationship with livelihood diversification. Bangladesh J. Agril. Res. 44(2): 355-365, June 2019

Technological Innovation: An Imperative Tool for Entrepreneurship Development in Nigeria

2013 ◽  
Vol 03 (08) ◽  
pp. 41-47
Author(s):  
OYEWALE I.O ◽  
ADEYEMO S.A ◽  
OGUNLEYE P.O
Keyword(s):  
Technological Innovation ◽  
Random Sampling ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Primary Data ◽  
Entrepreneurship Development ◽  
Mature Organizations ◽  
The Impact ◽  
Structured Questionnaire ◽  
Innovation And Entrepreneurship

Sustainable economic development does not occur without entrepreneurship and entrepreneurship is the practice of starting new organizations or revitalizing mature organizations. This study therefore is done to analyse the impact of innovation, technology and on the entrepreneurial development activities in Nigeria. Simple random sampling technique was used to select a total of 12 entrepreneurs from Lagos State that constituted our sample size. The primary data consists of a number of items in well- structured questionnaire that was administered to and completed by the respondents. Regression analysis was used to analyse the data. The results showed that there is significant relationship between technological innovation and entrepreneurship development in Nigeria. It is therefore recommended that government should create a friendly or an enabling environment for entrepreneurship and consumer goods to boost the Nigeria economy.

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