bluuebunny/crossref_metadata_2025 huggingface dataset:
Study Anatomy of Vertebrae Caudalis Asiatic Water Monitor (Varanus salvator)
Authors: Rakhmiyati  , Luthfi Muhammad Jafar
Published: April 2021

Asiatic water monitor lizard (Varanus salvator) is a type of reptile that can be found in several countries on the Asian continent. In Indonesia this species can be found in the Sunda plain (Java, Bali and Nusa Tenggara) and Maluku (the Sula and Obi islands). Asiatic water monitor lizard is long tailed reptile. The functions of tail as a movement aid, to maintain balance, a place to store energy, sexual appearance, and reproduction. The caudalis vertebrae in asiatic water monitor lizard (Varanus salvator) has a structure consisting of centrum, processus, cotyle, condilus, and constriction area. To observe the caudal vertebrae in monitor lizards the experiment was done by cleaning all the sticky tissue, then observed using a stereo microscope with a magnification of 0.8X. The result showed that blood vessels and nerve tissue were protected by sturdy bones.
Histological Structure of Varanus Salvator Intestine
Authors: Widyaningsih Risti
Published: April 2021

Varanus salvator is a common species in Indonesia. This animal is known as the water lizard, who is a member of the family Varanidae or known as the monitor lizard. This research aims to find out histological structure of Varanus salvator intestine. Histological observation was carried out by making histological preparations using the paraffin method. The results of this study were analyzed in a comparative descriptive manner through observation in a microscope and transverse photo histology preparations using a camera. The results of this study indicate that the intestinal histological structure of Varanus salvator consists of Serosa (Sr), Muscle layer (Ml), Muscularis externa (Me), Submucosa (Sm), Mucosa (M), Blood Vessel (Bv) dan Lamina Propria (Lp).
Effect pH Adsorption of Naphtol Dye Using Humic Acid Adsorbent Result of Peat Isolation from Kalimantan
Authors: Prandini Masyithah Nisvi , Rahmayanti Maya
Published: April 2021

Adsorption of naphtol dye has been done by using humic acid adsorbent taken from Kalimantan peat isolation. This study aims to determine the effect of pH adsorption on naphtol dyes with humic acid taken from Kalimantan peat isolation. Humic acid which is using as an adsorbent to adsorb the naphthol dye solution. The adsorption process was measured using a UV-Vis spectrophotometer to determine the concentration of the adsorbed naphthol dye. The adsorption study from the research results showed that the adsorption of naphtol coloring to humic acid was optimal at pH 2.
Tensile Strength of Bamboo After Preservation
Authors: Noverma  , Hapsari Oktavi Elok , Yusrianti
Published: April 2021

Bamboo has high tensile strength, so it can be an alternative to substitute wood or steel. Bamboo is a material that comes from nature, so it is vulnerable to degraded by weather changes and infected by termites and fungi. The effort to overcome this problem is by preserving before using it. This study aims to determine the tensile strength test results of bamboo after preserving and then compare with the tensile strength test results of bamboo without preserving. The research method was carried out by preserving bamboo by soaking the test sample in a container filled with water for a duration of time; 1 x 24 hours; 3 x 24 hours and 14 x 24 hours. The water used in freshwater with a salinity of 0 0/00 measured using a salinometer. The results showed that the tensile strength of bamboo increased compared without preserved with a percentage of 12.50%; 23.12% and 10.59% for the duration of time respectively 1x24 hours; 3x24 hours and 14x24 hours. Optimal tensile strength is obtained at a time duration of 3 x 24 hours and decreases at a longer time duration of 14x24 hours.
Quality Testing of Solid Soap with Mango Leaf Extract (Mangifera indica L.) Produced by Hot and Cold Processes
Authors: Karimah Zulfa Nurul , Kristiana Riska
Published: April 2021

Mango leaves (Mangifera indica L.) contain alkaloids, flavonoids, stereoid compounds, polyphenols, tannins and saponins. The saponin content in mango leaves is able to act as a natural foaming agent. Mango leaf extract can be added in the manufacture of solid soap to produce natural soap. Making solid soap can be done through heating (heat process) and without heating (cold process). This study aims to determine the process of making solid soap in a hot and cold process, comparing the best quality soap analysis based on quality including organoleptic testing and pH balance. The results showed the average quality of the best soap through the heat process with the results of organoleptic tested.
Nano Carbon-based as Supercapacitor Electrode from Cocoa Skin
Authors: Pangarso Zulkaisi Dwi , Cahyaningsih Lina , Kurnia Kahfi Imam Faqih , Purwaningsih Dyah
Published: April 2021

Most cocoa shells contain carbon which can be used as an electrode. Through nano carbon, cocoa skin has the potential to be an electrode material in supercapacitors. Nano carbon is a form of carbon that has a large surface area and pore volume. Material characteristics through FT-IR test showed that the intensity of wave absorption in the graphite group (C-C) decreased which indicates an increase in carbon. The XRD results show that carbon nano has a peak of purity close to graphite at 2θ: 24.75º on the lattice values (002). So that the nano carbon based supercapacitor electrode has an electrode resistance value of 0.0307 S/m with a specific capacitance value of 5.19 F/g.
Analysis of Least Significant Bit Method Using Sequential Encoding-Decoding in Steganography Digital Image
Authors: Hidayasari Nurmi , Yanto Febi
Published: April 2021

The method of steganography commonly used to hide data or information is Least Significant Bit (LSB) method. One of the relevant research is LSB using sequential Encoding - Decoding by David Pipkorn and Preston Weisbrot. In this research, an analysis of the LSB method using Sequential Encoding - Decoding by doing some testing. The tests are on the aspect of message security using tools StegSpy and enhanced LSB algorithm, testing on image quality by calculating the Peak Signal to Noise Ratio (PSNR) value and see the image histogram, testing on robustness of message by doing some image processing operations on stego image, like cropping, rotating, and etc, and then testing on capacity to check size of cover image and stego image and calculates the maximum size of data that can be hidden. From the testing process, we know that there are deficiencies in the aspects of security, robustness and capacity of a message. And then in this research we try to change the location of messages that are hidden in the image bits, which previous research used the 8th bit of each bytes, changed to the 7th bit. To be able to correct deficiencies in the security aspect. After repairing and testing like before, obtained better results in the security aspect. This can be seen from the image of the enhanced LSB algorithm process, the message is not detected, but unfortunately the image quality is reduced, with the low PSNR value generated.
Sentiment Analysis on New Currency in Kenya Using Twitter Dataset
Authors: Noor Ibrahim Moge
Published: April 2021

Social media sites recently became popular, it is clear that it has major influence in society, and almost one third of the entire world are in social media. It became a platform where people express their feelings, share their ideas, wisdoms and give feedback of an event or a product, with help of new technology it gave us an opportunity to analyse these contents easily. Twitter being one of these sites, with full of people opinions, where one can truck sentiment express about different kind of topics, instead of wasting time and energy for long surveys, due to advance sentiment analysis we can now collect a huge data of opinions of people. Sentiment analysis was one of the major interesting research area nowadays. In this paper we focused Sentimental insight into the 2019 Kenya currency replacement. Kenya government has announced that the country currency is to be replace wıth new generatıon of bank notes, the government ordered the Kenyan citizen to return back the old 1000 shilling notes ($10) to bank by 1st October 2019, in a bid to fight against corruption and money laundering. Kenyans citizen expressed their reaction over new banknotes. We perform sentiment analysis of the tweets using Multinomial Naïve Bayes algorithm by utilizing data from one of the social media platform–Twitter and I have collected during this period of demonetization, 1122 tweets from twitter using web scrapper with help of twitter advance search.
Application of Resident Administration Services in The City of Paringin Web-Based
Authors: Audia Rini , Sugiantoro Bambang
Published: April 2021

Paringin District have an application that is still in manual form and not computerized, and searching for information is still lacking because there is on online system so it is easy for citizents to access. So it is slow in the process of adding, changing and deleting data, and seeking information, as well as other population data collection. The purpose of making an administrative service application at this eligible village office so that it can help provide alternative problem solving such as data collection the number of people who come, move, die and are born. It’s easy to get correspondence if needed quickly, get complete information for residents, safe in data storage in the long run and the data is neatly arrange in the application. The method in this study by utilizing certain techniques is with field studies and literature studies. The result of this study are a set of administrative service application software in the Layap village office of Paringin subdistrict. The conclusion of this study is that in the application design provides a lot of convenience in the data processing process in the village office.
From Waste to Energy: Recycling Batik Waste to Electricity
Authors: Mujahid Ahmad , Artika Miranda Refamala Ayuk , Ramadhani Trisna Amalia
Published: April 2021

The World’s electricity consumption continues to increase as the shift from conventional products to electronic products weight the electricity burden in every state. Besides that, power outagesinhibitsocial and industrial activities as the last one occurred in Jabodetabek, August 2019. In this research it is pointed out that the composite of batik waste, charcoals, bilimbi, and tamarinds wrapped in aluminium foil is able to generate 0.5-volt electrical voltage per unit. Experiment method is used in this research by involving 13 samples with different compositions to yield a stable electrical voltage. The most stable one is derived from the composition of charcoal, bilimbi, and tamarind with the addition of batik waste water, which generated 0.5volt electrical voltage per unit. In order to verify the generated voltage, an electrical circuit with 7-unit structure was made and examined to a 3-volt flip-flop lamp circuit. To further develop this prototype in a bigger scale, therefore, the supports from various parties are needed for the sake of a continuous research, so that it can give rise to society’s interest to develop environmentally-friendly products and to provide solutions for batik waste water problem that takes place in Sentra Industry Batik, Laweyan, Surakarta that tends to be disposed vainly.
Prototype System of Solar Tracking Design to Optimize the Energy Absorption Based on Arduino
Authors: Wenda Alex , Putra Rendy Dwi
Published: April 2021

This research optimizes the absorption of solar energy in solar panels by designing mechanical systems that can move solar panels in the direction of incoming sunlight. Light-sensitive sensors are used to track the sun. The solar tracking system is designed using two axes, namely rotation axis and the tilt axis. Both axes are driven by servo motors based on light-sensitive sensors. The system was developed using an ATmega328 microcontroller unit. The test results found that using solar tracking the amount of energy produced was greater than static solar panels. Radiation generated between solar tracking and static sun can increase by 55.2%.
Multivariable Panel Data Cluster Analysis using Ward Method Gross Enrollment Ratio (GER) Data in West Java in the Year 2015-2018
Authors: Ramadhan Reka , Awalluddin Asep Solih , Cahyandari Rini
Published: April 2021

The aim of this study is to determine cluster analysis for panel data with multivariable data structures. Choosing a Ward method Choosing a method in a cluster analysis hierarchical technique. Ward method is a method based on Sum Square Error (SSE) with a measure of homogeneity between two objects based on the minimum number of error squares. The measure of similarity used is the Euclidean distance squared. The Ward method is used to add variation between objects in one cluster and maximize variation with objects in another cluster. The steps of the analysis are described in the discussion of this study. The method of implementation uses education gross enrollment rate (GER) data in West Java Province in 2015-2018. The results of the study indicate that the grouping of education GER data in West Java in 2015-2018 using the Ward method produces four clusters. The first cluster consists of five regions, GER for Elementary school, junior and senior high school in the cluster are below the average APK in West Java. The second cluster consists of two regions, in contrast to the first cluster GER for elementary schools in this cluster according to the average GER in West Java but for junior and senior high school GER below the average GER in West Java. The third cluster consists of seven regions, the GER for elementary, junior and senior high schools in this cluster is above the average GER in West Java while the fourth cluster consists of five regions, the GER for elementary and junior high schools in this area is above the average GER in West Java.
Mechanical Characteristics Testing of Biodegradable Ramie Fiber Reinforced Polylactic Acid (PLA) Fabricated with Hot-Press Molding
Authors: Sujarwadi Roni , Soemardi Tresna Priyana
Published: April 2021

In this research, composite material was fabricated from both renewable resources and biodegradable materials: ramie woven fabric as reinforcement and 3D printed polylactic acid (PLA) filament as resin matrix. The laminate composites were produced using a film stacking method and processed using hot-press molding. The mechanical properties of woven ramie fabric, PLA matrix, and laminate composites were investigated. It is shown that the breaking force of the plain woven ramie fabric in the warp direction was greater than in the weft direction. Further, the tensile and impact properties of laminate at warp direction higher than weft direction when ramie fabric reinforcement is used. In addition, scanning electron microscopy examination of laminate composite showed good bonding between ramie fiber and PLA matrix. In summary, laminated composites based on polylactic acid and woven ramie fabric display good performance capability, which can use for the development of engineering applications.
Support Vector Machine Predictive Analysis Implementation: Case Study of Tax Revenue in Government of South Lampung
Authors: Fikriya Arina Ashfa , Hikmawati Sanny
Published: April 2021

Tax is potential revenue that is used by the government as a source of funding to run the government. One of the conditions needed to implement decentralization is the availability of sources of local revenue. Some local revenue sources are hotel and restaurant taxes. Issues raised in this research are that the number of hotel and restaurant visitors changes every year, resulting in fluctuations in the amount of tax. On the other hand, the Government of South Lampung had difficulty in predicting the target of hotel and restaurant tax revenue when arranging a revenue budget. This is due to the absence of formula to calculate the potential tax revenue accurately, resulting in a lack of strategic management for local revenue improvement. Now, Business Intelligence is becoming a trend. Many sectors use Business Intelligence to analyze and prepare new strategies and improve performance. Thus, it is necessary to use Business Intelligence to predict the potential of hotel and restaurant tax revenue so that the Government of South Lampung can develop appropriate strategies to improve local tax revenue and minimize tax reduction. The method used is a predictive analysis using the Support Vector Machine (SVM).  The result of this study is expected to be taken into consideration for South Lampung Local Government Revenue Service, in particular for the determination of the target of the hotel and restaurant tax sector in the coming year.
The Effect of Android Game Based Learning for Student Interest in Mathematics Learning
Authors: Laksita Ghany Desti , Oktaviani Dewi , Pangestu Aji
Published: April 2021

Nowadays technology is growing very rapidly. The existence of this technology development, helps a lot of people in carrying out their activities. There is one form of development technology that very influential in everyday life and mostly found in the community is an android smartphone. In this age, smartphones have become a lifestyle for the society. The development of smartphone technology has been perceived by all levels of society especially for students. Besides, being used in social media, smartphone purpose is also being used to play a game by students, both online and offline games. In the field of education, smartphones are still rarely used to support learning activities, especially in mathematics learning. This issue is happened  because there are still many educators who are reluctant to switch from conventional learning methods to digital-based learning. Even though the interest of students in the smartphone technology especially game, is high enough. This research, intend to determind the effect of mathematics learning based on interactive android game to student’s study interest. This research use study literature method, that is consider relevant various research, then the researcher conclude it based on the various research. The result of this research is there is an influence of learning based on interactive android game to student’s interest. So, this learning based on android game can be used to increase student interest in mathematics.
Production Rate Modelling towards Salt Consumption as a Solution to Avoid Hypothyroid Disease for Indonesian People
Authors: Setyowisnu Glagah Eskacakra , Febriawan Muhamad Rizky , Asiyah Ai Aas Siti , Khasanah Nisa Uswatun , Prihantini
Published: April 2021

Salt is one of the essential ingredients that is very important for all people. The use of salt has never been separated from everyday life by all corners of the world, including Indonesia. The Indonesian people's need for salt reaches a high enough number that there has never been a shortage of salt. This certainly can be a problem in meeting the basic needs of the Indonesian people and impacting on public health, iodine deficiency which causes hypothyroid disease. From this case, this study aims to model the rate of salt production with the consumption rate momentum among the people. This mathematical model is constructed from one of Newton's new laws of motion, 3rd Newton’s Law with several assumptions and ignores the human factor in production. The results of the model will be analyzed and determined the best solution to overcome the shortage of salt available in Indonesia.
Mathematical Modeling Effect Habbatussauda on Diabetes Mellitus
Authors: Sugiyanto  , 'Aesa Luqyana Khalda
Published: April 2021

Habbatussauda is one of the traditional or herbal medicine existed since a long time ago and this is one of the drugs that was recommended by the Prophet Muhammad. Habbatussauda’s benefits has been studied extensively in the field of health, habbatussauda also has been widely used to cure various diseases although it takes a long time. One of the benefit is to cure diabetes mellitus. This research will analyze the mathematics models of diabetes using three variables which are glucose, insulin and insulin generalization. Then it will look for the differences before and after consuming habbatussauda by using the mathematics model.
The Effect of Addition of Avocado Fruit Seeds On Bioplastic Biodegradation
Authors: Fathurohman Viki , Alisaputra Darmawan , Sedyadi Endaruji
Published: April 2021

Bioplastics can be made with chitosan as a base material with a sorbitol plasticizer and avocado-based seed starch. This study tries to discuss the comparison of avocado seeds to bioplastic biodegradability required based on weight loss in soil media. This research was carried out in empathic, namely making avocado starch, making bioplastics, analyzing bioplastic functional groups, and testing biodegradation of bioplastics in soil media. Variations used are avocado seeds used are 0; 0.1; 0.3; 0.5; 0.7; and 1.4 grams. Bioplastic functional group analysis was performed using FTIR. Bioplastic biodegradability in soil media. Bioplastics are 76% degraded within 12 days in the soil. This shows that bioplastics can be biodegradable.
The Effect of Parenting on The Language Development of Autistic Children
Authors: Badi’ah Atik , Mendri Ni Ketut , Nugroho Heru Santoso Wahito , Handayani Wawuri
Published: April 2021

Autistic children have abilities and characteristics that are different from each other, so different ways of interacting with themselves and the environment and making autistic children as unique individuals (Ginanjar, 2007). The development of autistic children both physically, emotionally, intellectually, and psychosocially has a problem that results in the inhibition of children reaching a level of language development that is appropriate to their age. Parenting in children with autism includes autistic child parents providing emotional, social, informational and practical support. Attention and love from parents and family will encourage autistic children to develop better. An autistic child will feel that he is loved and wanted if more and more people in the family environment who love and care for him. Based on the results of a preliminary study conducted by the author by interviewing 8 autistic schools in the provinces of DIY and Ponorogo, East Java, to 16 parents who have autistic children, the majority of parents (93%) think that by entering autistic children into an outside school ordinary (SLB) autism in accordance with its limitations means their efforts can be said to be enough. Not all parents realize that having children with special needs in accompanying language development can maximize language development. Knowing the effect of parenting on the language development of children with autism This type of quantitative research uses Quasi experiment with the design "Pre test Post test with Control Group Design". Observation was carried out twice. The first observation is to determine the development of an autistic child before being given parenting and the second observation after being given parenting. Sampling was done by purposive sampling with the criteria of parents and autistic children aged 6-12 years in the autistic schools of the provinces of Yogyakarta and Ponorogo, East Java. Examination data were analyzed analytically with the help of SPSS for Windows version 16.0 using paired t-test and Wilcoxon, with a significant level of p <0.05. The experimental group pre-test and post-test with a value of p (sig) 0,000 <0.05 then Ha is accepted and Ho is rejected, meaning there is a difference between pre-test and post-test in the experimental group. In the control group pre-test and post-test with p value (sig) 0.002 <0.05 then Ha is accepted and Ho is rejected, meaning there is a difference between pre-test and post-test in the control group. There is a parenting effect on the language development of autistic children in autistic schools with p (sig) <0.05 means that Ha is accepted and Ho is rejected.
The Transformation of Monopoly Game: Learning Media to Improve Students' Creativity and Interest in Learning
Authors: Hastanti Atika Dinna
Published: April 2021

This study aims to determine and applying how effective the design of The Transformation of Monopoly Game as a learning media in order to increase students' creativity and interest in learning. Technological progress has been rapid development in various fields such as social, political, cultural, economic and even education. Due to technological advances often cause trends and addictions to technology, especially among students. Based on a Study funded by UNICEF (United Nations Children’s Fund) and carried out by the Ministry of Communication and Information by tracking online activities of a sample of children and adolescents aged 10-19 (as many as 400 respondents). The results of this study state the use of social media and digital become an integrated part in the daily lives of Indonesian young people. The study found that 98% of the children and adolescents surveyed knew about the internet and that 79.5% of them were internet users. This research uses descriptive method and action research. Descriptive method is used to describe the phenomena that are taking place now or in the past, and collect data from journals, book, as well as other sources. Then by applying the action research method which research objects use in the learning process. Through this media students not only play but also learn, so this can find out how effective The Transformation of Monopoly Game is as a learning medium in order to increase students' creativity and interest in learning.
Analysis of Student Problem-Solving Ability Topics 3D Reviewed from Geometry Thinking Level
Authors: Ardiyanto Bagas , Gunawan  , Abdulloh Maryam , Septiasari Safrilia
Published: April 2021

Each student has different problem-solving skills on the 3D topic. The study aims to find out the student problem-solving skills in the 3D Topics reviewed from geometry thinking level. This type of research is qualitative research with a case study approach. The subject in this study is as many as 20 subjects consisting of high problem-solving capabilities, moderate problem-solving capabilities, and low problem-solving capabilities. The data collection Instrument on this research is a level test of geometry thinking. The results showed that students in the category of high problem-solving skills were able to master level 0, Level 1, Level 2, and level 3 despite not being perfect, students in the category of problem-solving skills were able to master level 0, Level 1, and Level 2, students in the category of low problem-solving skills are only capable of mastering level 0 and Level 1.
The Effect of Reciprocal Teaching Model on Students’ Self-Regulated Mathematics Learning in SMPN 2 Patikraja Banyumas Regency
Authors: Ulpah Maria , Zaenurrohman  , Sahly Muh. Naffi
Published: April 2021

In mathematics learning, not only cognitive abilities, but affective abilities also need to be improved, especially the ability to learn independently or self-regulated learning. Self-regulated learning is very important because the attitude of independence aims to be able to direct students towards positive behavior that can support success in the learning process. Self-regulated learning makes students trained and manages every action, so students have discipline in the learning process. Students who have good self-regulated learning can complete the task and are able to overcome a learning problem. The learning model that is thought to improve self-regulated learning is reciprocal teaching. This model requires students to study independently with strategies to summarize, make questions, explain, and predict answers. This research uses quantitative approach with a quasi-experiment, conducted in 8th grade of SMPN 2 Patikraja, Banyumas Regency. The instrument used to measure self-regulated learning is a questionnaire consisting of 24 valid questions. The results of this study indicate that there is an effect of the reciprocal teaching model on students' self-regulated mathematics learning. This can be seen from the average score of n-gain 0.353 in the medium category.
Analysis Students Mistakes of Mathematics Major of IAIN Jember in Trigonometry Operations Precondition Calculus Courses
Authors: Septiandi Nur Ega , Aini Novita Nurul , Umami Happy Firda Nuril
Published: April 2021

Not a few students mathematics education of IAIN Jember experience obstacles in studying Calculus courses. This can be seen from many students who say that calculus courses are difficult and the results of the student calculus pretest. The lack of mastery in trigonometric operations which is a prerequisite for calculus courses is one reason. Therefore, error analysis is needed to identify the types of errors and the tendency of errors experienced by students in working on trigonometric problems which are the prerequisite material for calculus courses. Data collection in this study was carried out by the method of tests and interviews, meanwhile the data analysis used descriptive analysis. Through data analysis, it can be concluded that the errors experienced by students in working on trigonometric operations as a prerequisite for calculus courses are errors of fact, concept errors, and skills errors. Of the three errors, what turns out to be a tendency to error is a fact error. In addition, the cause of the error was the very lack of understanding of the concepts that exist in the material trigonometric operations.
Difficulty Analysis Learning Mathematics Society and Factors Cause for Junior Secondary Students
Authors: Sariningtias Rizki , Kusumawardani Noviana , Yasfi Ali , Syafaat Agil , Aliyah Ro’ikhatul
Published: April 2021

The study aims to describe the type of learning difficulties and factors of the learning difficulties of students of class VII SMP N 4 Satu Atap Pakis in studying mathematics subjects on the set material. The type and approach in this research is a type of descriptive research with a qualitative approach. The data collection techniques in this study are with diagnostic tests, polls, and interviews. From the results of the study came the conclusion that the difficulties of students of class VII SMP N 4 Satu Atap Pakis in the material set is a) difficulty understanding the question b) difficulty understanding the mathematical symbols and can not find the keywords of the problem, c) difficulties Transforming the problem, d) difficulties in completing the problem. While the learning difficulty factor is caused by two factors that are internal and external factors. internal factors include: a) lack of interest in students, b) lack of motivation to learn, c) lack of confidence to ask. External factors, among others: a) The class atmosphere is not conducive, b) the influence of handphone in the student concentration, c) lack of parental assistance in supervision at home.
Sustainable Livelihood Strategies Rural Household in Sanden District Bantul Regency
Authors: Pratiwi Liana Fatma Leslie , Al Rosyid Ali Hasyim , Kafiya Maftuh
Published: April 2021

People living in the countryside mostly have a profession as a farmer. Farming is one of the largest sources of income for rural households. In the district of Sanden, rural communities utilize a variety of land agroecosystems for agriculture. Utilization of various types of agricultural land agroecosystem is one of the household livelihood strategies. Livelihood strategies undertaken by rural communities aim to reduce poverty and improve household welfare. This research aims to (1) describe strategy of rural households to support the achievement of sustainable livelihoods (2) Knowing the inequality of farmers ' income distribution based on livelihood strategies used by rural households. The basic method used is a descriptive analytical method. The research site in Sanden district, Bantul regency was then taken by random farmer owners of 30 people as respondents. Rural household strategy to support sustainable livelihood achievement is calculated using descriptive statistics, and the inequality of farmer's income distribution based on livelihood strategies used by rural households is calculated using the Gini index and the Lorentz curve. The results showed that farmers ' household strategy to support the greatest sustainable livelihoods achievement in the form of consolidated strategies, and inequality of revenue distribution based on households livelihood strategies is moderate distribution inequality.
Technology: Technological Advances and Changes in Human Lifestyles in a Socio-Cultural Perspective
Authors: Al Asy ari M. Khoirul Hadi , Rahman Muhammad
Published: April 2021

The development of technology in this day and age can not be denied anymore, technology is very fast and rapid development. So it is not surprising that the need for media technology is increasingly high, with the existence of various jobs technology is very easy and quickly done. From that we wrote this paper aims to: (1) know the process of development of technological progress, (2) find out changes in human life patterns due to technological advances, (3) find out the influence of technological advances in the socio-cultural field, and (4) get solutions in overcoming negative impact of technological progress. This paper is the result of a literature study sourced from books, articles, journals, and completed with survey results on the use of modern technology used as data collection techniques. The data obtained were analyzed descriptively critically by the author using the socio-cultural theory change approach. The results of the discussion in this paper show the following: (1) technological advances continue to develop very rapidly and give birth to digital society; (2) there is a change in the pattern of human life due to technological advances so that it becomes more pragmatic, hedonistic, secular, and gives birth to an instant generation but also prioritizes the effectiveness and efficiency in their behavior and actions; (3) technological advances are double faced because they have positive and negative effects on human life; (4) efforts to reduce and overcome the negative impacts of technological progress can be made by synergizing the roles of family, education, society and the state. With data collection methods, documentation and participation in case studies. To obtain maximum and concrete results, this paper can be used as a solution to various problems related to technology.
Islamic Education Through Islamic Quotes on Instagram: A Study on the Behavioral Changes of Millennial Muslim
Authors: Susanti Sinta Ari , Nur’aini Rosiqoh
Published: April 2021

Islamic quotes as apicture that contains text about Islam has been made by many Instagram users on the last decade. The text usually is about the knowledge of Islam in the form of an advice or information. It is undeniable that Instagram users are dominated by millennials, one of them is millennial muslims. Islamic quotes could be a media for millennial muslim in order to learn about Islam. This study is conducted to analyzethe behavioral changes of millennial muslim after reading Islamic quotes on Instagram. The problems analyzed in this study are the behavioral changes showed by millennial muslim on daily life and the reasons that cause millennial muslim changing behavior. The writer usedGagne and Berliner Theory (Behavioristic Theory) to analyze the behavioral changes. Observation and questioner were used in collecting the data. The data was analyzed using a descriptive qualitative method.The results showed that there were behavioral changes of millennial muslim after reading Islamic quotes on Instagram. Millennial muslim’s knowledge about Islam was being deeper due to the intensity of reading the Islamic quotes, so their behaviorslowly changes close to the sharia. Behavioral changeswere a result of the interaction between stimulus, in the form of Islamic quotes, and responses, in the form of behavioral changes. Based on the result, it was concluded that Islamic quotes on Instagram could be used as a media in providing Islamic education for millennial Muslims.
Local Knowledge on Useful Plants in The Coastal Line Along Parangtritis and its Surroundings
Authors: Handayani Meri , Sulistyowati Eka
Published: April 2021

In the coastal areas of Parangtritis and its surroundings have plant’s diversity which is still not much researched and documented. Documentation of the useful plants by local people (ethnobotany) is needed so that knowledge will be exist. This is due to the development of technology and science, the local knowledge about plant is increasingly degraded. This study aims to find out the knowledge and use of plants by local people. Data about plant’s diversity was carried out by analyzing vegetation in the coastal areas of Parangtritis and its surroundings which consisted of three locations namely Mangrove Forest of Baros, Parangkusumo Sand Dune, and Karst around Langse Cave. Data collection of ethnobotany was carried out by direct observation and semi-structured interviews with key informants. Snowball sampling technique was used to determine the key informants. The results of the study obtained 40 plant species from 27 families. Among 40 species, there were species that had a single function or others that had multiple function.  It divided into 7 usability groups, namely fodder (22 species), medicine (11 species), timber (4 species), household plant (19 species), ritual (2 species), ornamental (6 species), and crafts (2 species).
Techniques and Challenges while Applying Machine Learning Algorithms in Privacy Preserving Fashion
Authors: Kjamilji Artrim
Published: April 2021

Nowadays many different entities collect data of the same nature, but in slightly different environments. In this sense different hospitals collect data about their patients’ symptoms and corresponding disease diagnoses, different banks collect transactions of their customers’ bank accounts, multiple cyber-security companies collect data about log files and corresponding attacks, etc. It is shown that if those different entities would merge their privately collected data in a single dataset and use it to train a machine learning (ML) model, they often end up with a trained model that outperforms the human experts of the corresponding fields in terms of accurate predictions. However, there is a drawback. Due to privacy concerns, empowered by laws and ethical reasons, no entity is willing to share with others their privately collected data. The same problem appears during the classification case over an already trained ML model. On one hand, a user that has an unclassified query (record), doesn’t want to share with the server that owns the trained model neither the content of the query (which might contain private data such as credit card number, IP address, etc.), nor the final prediction (classification) of the query. On the other hand, the owner of the trained model doesn’t want to leak any parameter of the trained model to the user. In order to overcome those shortcomings, several cryptographic and probabilistic techniques have been proposed during the last few years to enable both privacy preserving training and privacy preserving classification schemes. Some of them include anonymization and k-anonymity, differential privacy, secure multiparty computation (MPC), federated learning, Private Information Retrieval (PIR), Oblivious Transfer (OT), garbled circuits and/or homomorphic encryption, to name a few. Theoretical analyses and experimental results show that the current privacy preserving schemes are suitable for real-case deployment, while the accuracy of most of them differ little or not at all with the schemes that work in non-privacy preserving fashion.
Scholars and Literati at the Royal Bourbon College in Aix-en-Provence (1603–1763)
Authors: De la Croix David , Fabre Alice
Published: April 2021

This note is a summary description of the set of scholars and literati who taught at the Royal Bourbon College in Aix-en-Provence (France) from its inception in 1603 to its disappearance, when Jesuits were expelled from Aix-en-Provence, and the College was absorbed into the old University of Aix in 1763.
Investigating a Hampered NRE Utilization in Kaltim’s Energy System: Is there an Energy Policy with a Syndrome of the Energy-abundant Area?
Authors: Asri Novena Damar , Yusgiantoro Purnomo
Published: April 2021

Kaltim presumably experiences an energy paradox, where the energy system is unreliable and unsustainable, despite energy-rich. This study presumes that the paradox is caused by the ‘ill-advised energy policy’ shown by ‘energy-area incompatibility’ that is exacerbated by the ‘energy-rich syndrome’ (a mindset of feeling secure due to energy-abundance leading to a wasteful behavior). This study investigates the indication of the syndrome in Kaltim energy policy by first investigating ‘the incompatibility’ and its impacts by examining Kaltim’s geographical characteristics, energy potential, population-distribution, electricity system, and infrastructure. Also, the impacts of retaining the syndrome through cost analyses. This study finds the incompatibility between energy-sources utilization and geographical characteristics, by conducting a descriptive method with data collection and analyses. Kaltim is forest-dominated with scattered-population, suitable with an off-grid system. However, the electricity development is mostly on-grid, fossil-based designed, explaining the difficulties of electrifying the entire Kaltim, although electricity is surplus. While off-grid should be applied to NRE, the massive use of diesel-gen-sets shows wasteful behavior. By conducting a linear-regression method, this study finds that Kaltim’s electricity consumption (indicating the infrastructure sufficiency) is lower than it should be, given its incredible economic performance. The incompatibility causes infrastructure insufficiency. The cost analysis finds that the massively-used fuel oil is the most expensive. The subsidy would be around 0.003%-0.275% of Kaltim GDRP or 17 billion-1.55 trillion IDR. As the new Capital location, NRE is a must for Kaltim. To conclude, NRE utilization is very low, although its potential is huge, and Kaltim’s forested characteristics suit it. NRE only covers 3% of Kaltim’s electricity, while the potential (hydro alone) is more than 6,900MW. The incompatibility causes an unreliable electricity system, although electricity is surplus. Following Kaltim’s geographical characteristics, NRE should be optimized. This study intends to aware the policy-makers of the syndrome, thereby develop a ‘proper energy policy’.
Systemimmanenz und Transformation: Die Bibliothek der Zukunft als lokale Verwalterin?
Authors: Knöchelmann Marcel
Published: April 2021

Deutschland bemüht sich, als geschlossener, exzellenter Wissenschaftsstandort durch Rahmenverträge mit Großverlagen einen höheren Anteil an Open-Access-Publikationen zu erreichen. Dies erwirkt lediglich eine Transformation im Sinne einer systemimmanenten, sanften Evolution und verhindert den Gerechtigkeitsgedanken, der Open Access ursprünglich war. Die Zukunft der Bibliothek scheint auf die Rolle der lokalen Verwalterin reduziert zu sein, anstatt eine integrative, tatsächlich systemgestaltende Position einzunehmen.1
Projektbericht: Erfahrungen mit bürgerschaftlichem Engagement in der Stadtbibliothek Aachen am Beispiel der „Dialog in Deutsch“®-Gesprächsrunden für Zugewanderte
Authors: Lohe Anne
Published: April 2021

Die Stadtbibliothek Aachen hat seit 2015 mit den Gesprächsgruppen „Dialog in Deutsch“® (DiD)1 ein ehrenamtlich getragenes niederschwelliges Projekt für Zugewanderte in den laufenden Betrieb integriert, das sich am Modell der Bücherhallen Hamburg orientiert. Das Beispiel illustriert das Potenzial für die Weiterentwicklung von einer traditionell aufgestellten Stadtbibliothek zu einem mit anderen Bildungsträgern vernetzten Kulturzentrum. Zugleich zeigt es Herausforderung und Chancen für Öffentliche Bibliotheken bei der Einbindung ehrenamtlichen Engagements angesichts eines offensichtlichen gesellschaftlichen Bedarfs an Integrationsarbeit. Abschließend beleuchtet ein Blick auf die aktuelle Situation in 2020 die Beeinträchtigung des DiD-Projekts durch die Coronapandemie.
Bibliotheken in der Pandemie
Authors: Korthals Julia , Seidl Tobias , Vonhof Cornelia
Published: April 2021

Die aktuelle Situation, in der sich die Welt einer Pandemie ausgesetzt sieht, zeigt einmal mehr, dass sich die Zukunft nicht vorhersagen lässt. Zukunftsforschung bietet Bibliotheken jedoch die Chance, zukünftige Folgen der Pandemie besser einzuschätzen, sich auf möglicherweise eintretende Ereignisse vorzubereiten und bereits heute Strategien für morgen zu entwickeln. Der folgende Beitrag präsentiert verschiedene Methoden der Zukunftsforschung und gibt Antwort darauf, was Zukunftsforschung für Bibliotheken leisten kann. Zudem werden Trends aus Zukunftsreports vorgestellt, die sich momentan am Horizont der Bibliothekswelt andeuten.
Readiness of food producers to reflect regions in their names and trademarks: a perspective for regional branding with sunflower oil
Authors: Ruban Dmitry A. , Ermolaev Vladimir A.
Published: April 2021

Popular food products can be used in regional branding. Names and trademarks of 56 Russian producers of sunflower oil, which is nationally high-demanded culinary oil, are analyzed to find indications of regions. The regional affinity is classified and scored. It is found that about a half of the considered producers indicate region of location in their names and/or trademarks. Often, regions are considered directly, although some producers mention them in unclear or allegoric ways. Many region-concerned producers concentrate in the Altai, Rostov, and Krasnodar regions. These findings indicates on the urgency of support of the region-related naming by regional administrations and professional associations.
Investigation of radiation induced luminescence with modulated signal transmission in optical fiber
Authors: Kadhum Haider A. , Ali Mazin Ali A. , Saleh Zeyad A.
Published: April 2021

In this work, the effect of mixed beta and gamma radiation on the optical fiber properties was investigated, this effect has been studied for different signal frequencies which range 1–100 kHz carrying on laser beam using amplitude shift key (ASK). Single mode (SM) glass optical fiber was utilized, and exposed by (Cs-137) as radioactive point source with different low dose rates. The variation of received optical power (P

r
), peak to peak voltage (Vp-p), voltage gain (A

v
), and signal to noise ratio (SNR) were measured before and after irradiation. It was observed that an improvement in the received signals which propagates in optical fiber after irradiation by exposure of lower dose rates.
Influence of fabrication parameters on the elastic modulus and characteristic stresses in 3D printed PLA samples produced via fused deposition modelling technique
Authors: Tognana Sebastián , Montecinos Susana , Gastien Rosana , Salgueiro Walter
Published: April 2021

Commonly used 3D printed samples are partially infilled to reduce time and cost of printing, with mechanical properties dependent on the infill. In this work, the influence of the percentage and pattern of infill in PLA printed samples on the elastic modulus and characteristic stresses was analyzed. The elastic modulus, E, and characteristic stresses (σ
0.2, σ
4 and the maximum tensile stress) were determined for each sample using impulse excitation technique, IET, and uniaxial tensile tests. An apparent density was calculated for each pattern and infill percentage, and the mechanical parameters were studied as a function of such density. The results of IET obtained in different modes of vibration were analyzed and an apparent value of E was calculated. FEM simulations were carried out and the results were compared with the experimental ones. The mechanical properties for different infill percentages and infill patterns were studied by comparing the specific values of E and the stresses. Samples with higher infill percentages exhibit the best specific values of maximum stress and E, but the sample with 20% infill has the highest specific yield stress and a good value of the specific E from flexural vibrations.