bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Weather Conditions on COVID-19 Case in Several Regions of Indonesia
Authors: Deswanti Bella , Marzuki Marzuki , Muharsyah Robi , Yusnaini Helmi , Ramadhan Ravidho
Published: July 2022

This study investigates the relationship between COVID-19 and weather conditions in six regions in Indonesia, namely South Jakarta, East Jakarta, North Jakarta, Jember Regency, Semarang City, and West Pasaman Regency. The study uses the daily number of positive cases of COVID-19 and weather data. Weather parameters used in this study are the average, maximum, and minimum temperature, rainfall, and relative humidity. Weather data were obtained from surface observation of Agency for Meteorology, Climatology and Geophysics (BMKG) and reanalysis product (ERA-5) from European Centre for Medium-Range Weather Forecasts (ECMWF). The effect of weather conditions on the number of COVID-19 cases was evaluated using the Spearman and Kendall correlation. It was found that the number of positive cases of COVID-19 had a relationship with weather parameters. A negative correlation was found between the temperature and the number of positive COVID-19 cases. Thus, the number of positive COVID-19 cases increases when the temperature decreases. On the other hand, rainfall and relative humidity positively correlate to the number of positive cases of COVID-19, which means that when the rainfall and relative humidity increase, the number of positive cases of COVID-19 increases. The relationship between weather conditions and the number of COVID-19 cases is more apparent in areas with a higher population density, such as Jakarta. The results of this study can be valuable information in handling COVID-19 cases.
Effectiveness of Guided Inquiry Learning Tools to Improve Understanding Concepts of Students on Momentum and Impulse Materials
Authors: Susilawati Susilawati , Doyan Aris , Muliyadi Lalu
Published: July 2022

This study aims to the effectiveness of guided inquiry learning tools to improve understanding concepts of students on momentum and impulse materials. The learning device was developed using a 4D model consisting of four steps, namely define, design, develop and disseminate. This research was conducted at SMAN 4 Mataram in the tenth grade of MIPA 1 with a total of 20 people. The data was obtained in the form of pre-test and post-test scores. The data were analyzed using the Shapiro Wilk test and paired sample t-test at a significance level of 5%. The results of the Shapiro Wilk test show that the data are normally distributed and meet the requirements to perform a parametric test. The results of the paired sample t-test show that the t-count (24.347) is greater than the t-table (2.093).  This means that there is influence of guided inquiry learning tools improves understanding concepts of students. These results indicate that the guided inquiry learning model is effective to improve understanding concepts of students on momentum and impulse materials
Analysis Validation of Quantum Physics Learning Devices using Blended Learning Models to Improve Critical Thinking and Generic Science Skills of Students
Authors: Doyan Aris , Susilawati Susilawati , Hadisaputra Saprizal , Muliyadi Lalu
Published: July 2022

This study aims to develop a quantum physics learning device with a blended learning model to improve the critical thinking and generic science skills of students. The learning device is made with a 4D development model which includes four steps, namely: define, design, develop, and disseminate. The learning tools developed to consist of semester program plans (SPP), student activity sheets (SAS), quantum physics teaching materials, instruments to measure critical thinking skills, and generic science skills of students. The validity results show that the quantum physics learning device with the blended learning model has an average value of more than 4.20. This shows that the learning tools are very feasible to improve the critical thinking and generic science skills of students.
Strategi kepala madrasah dalam menyiapkan peserta didik menghadapi asesmen nasional di MIN 1 Yogyakarta
Authors: Fitriyana Fitriyana , Subiyantoro Subiyantoro
Published: July 2022

In preparing the National Assessment/Assessment, the right strategy is needed from the head of the madrasa for the implementation of the assessment process so that students can follow the assessment process properly without any obstacles. The research that will be conducted aims to find out the strategies prepared by the madrasa head in preparing students to take part in the National Assessment (AN) at MIN 1 Yogyakarta. The method in this study uses a qualitative method with a descriptive approach. The data collection system is done through interviews, observation, and documentation. The data analysis technique uses the Miles Huberman data analysis model as quoted by Sugiyono which consists of 3 (three) related processes, namely data reduction, data presentation, and conclusion drawing/verification. Based on the research results, it can be seen that the National Assessment is designed to map the education system which will later be used as a reference for improving and evaluating the quality of education in each educational unit. Efforts made by the head of the madrasa to prepare students for the AKM (Minimum Competency Assessment) are by providing additional study hours and facilitating books to support the success of the program. However, the program cannot be fully implemented due to the pandemic. The supporting factors in the success of the National Assessment at MIN 1 Yogyakarta are the support and willingness of the madrasa head to be responsible and special supporting book facilities to be given to teachers and students of the National Assessment.
Kajian etnosains dalam ritual belaq tangkel pada masyarakat suku sasak sebagai sumber belajar IPA
Authors: Mukti Husnul , Rahmawati B Fitri , Marzuki M. Marzuki
Published: July 2022

The Sasak community has a diversity of customs, arts, and culture as well as traditions that have been passed down from generation to generation, including the Belaq Tangkel tradition which is part of the ritual during the first pregnancy. This study aims to find the concept of science in the ritual of belaq tangkel in the tradition of the Sasak tribe that can be implemented in learning. This research is an ethnographic study. Data were collected through various literature studies, field observations, and interviews with informants who understand the implementation of the Belaq Tangkel ritual in the traditions of the Sasak people. The results of this study indicate that in the Sasak community, pregnancy is considered a gift (paice) given by God to a family. Therefore, the phases of pregnancy are greeted with certain rituals which are a form of gratitude for being given this gift. One of the rituals performed is the Belaq Tangkel ritual. This ritual is carried out when the womb enters the age of 7 months. The Belaq Tangkel (breaking coconut) ritual is a ritual to ask God Almighty, so that the mother will be facilitated in the birthing process and the child will become a pious and pious child like water and the contents of a clean and white coconut. This ritual tradition is a tradition passed down from generation to generation from the ancestors which is believed to be a ritual to honor the child in the womb and is a deposit that must be guarded and protected and given love by both parents. The Belaq Tangkel tradition is carried out in two stages. The stages of the ritual are reconstructed from the original knowledge of the community into scientific knowledge that has the potential to be used as a science learning resource.
Pengembangan bahan ajar menggunakan software articulate storyline 3 pada materi konsep manajemen
Authors: Rohmah Siti Nur , Nisa' Nadia Fikrotun
Published: July 2022

Teaching materials are generally used as a reference in supporting the learning process because they consist of learning materials that play an important role in helping learning activities. The development of knowledge and technology makes teaching materials develop in various forms and types, one of which is technology-based teaching materials. The presence of teaching materials must be an alternative in order to solve problems in the classroom. This study aims to develop interactive learning media about Management Concepts This teaching material was developed because there were various learning problems experienced by students at SMA Tuban. These teaching materials are compiled through the Articulate Storyline 3 application software with research and development methods through the ADDIE approach (Analyze, Design, Development, Implementation, and Evaluation). It is known that the results of the trials that have been carried out have shown that the teaching materials developed meet the appropriate criteria. Through the preparation of these teaching materials, the writer hopes that students can learn independently in the current era of educational technology, then can increase the enthusiasm of students' learning so that they can realize the value of satisfying learning outcomes.
Analisis pemanfaatan e-learning madrasah: studi kasus di kabupaten Indramayu
Authors: Ilmi Aziz Rizki Miftahul , Duryat Masduki , Nurmantoro Muh. Aripin
Published: July 2022

E-learning madrasah is a learning media that aims to facilitate learning activities in order to get good learning outputs during the covid-19 pandemic. The results of a preliminary study conductedon all MTs Negeri in indramayu districts during covid-19 showed that there were still many teachers who had not yet utilized this learning media in the learning they have done and the output of learning outcomes had decreased. This decrease can be seen from the average repetition of 54 from the Minimum Completeness Criteria (MCC) which is set at 76. This study aims to explain the supporting and inhibiting factors experienced by students and teachers in learning science using madrasa e-learning during the covid-19 pandemic. The research method used in this study is a qualitative method with a case study type. This research was conducted on science learning at the madrasah tsanawiyah level in Indramayu districts. Respondents involved in this study were 458 class VIII students and five madrasah tsanawiyah teachers who were selected using two sampling techniques, namely cluster random sampling and purposive sampling. The supporting instruments in this study were observation sheets and interview sheets. Observation sheets were used to collect data related to the use of e-learning madrasah in science learning. Meanwhile, the interview sheets were used to obtain information about respondents' experiences in using e-learning madrasah and to digest information about the observed phenomena. The results showed that the use of e-learning madrasah in science learning had inhibiting and supporting factors including IT (Information and Technology) capabilities, adequate equipment, learning methods and modes, characteristics of teaching materials, network availability, parental support, and training on the use of e-learning madrasah for students. These seven things act as supporting factors and inhibiting factors that support the characteristics of each school.
Aplikasi Pengelolaan Inventaris Barang Berbasis Web Pada Pondok Pesantren Darul Muta’allimin Kota Tasikmalaya
Authors:   Program Studi Sistem Informasi Kampus kota Tasikmalaya, Universitas Bina Sarana Informatika, Adiwisastra Miftah Farid
Published: July 2022

Managing inventory of goods in educational institutions must gain serious attention because the quality of educational institutions is extremely affected by the availability of facilities and infrastructure and the management of supporting goods inventory. Darul Muta'allimin Islamic Boarding School, in Kota Tasikmalaya, is an Islamic educational institution utilizing a Microsoft Excel application spreadsheet to manage the inventory of goods. However, they frequently encountered several problems while operating it, such as untidy goods data archives and challenges of reporting inventory data. For this reason, employing applications remained demanding to manage inventory data. The waterfall method was adopted to develop an application. The application was cultivated based on the Codeigniter framework (web-based) and the bootstrap with a Mysql database to be more responsive. The results revealed that the developed application was able to manage the inventory of goods, including facilities and infrastructure department. It occurred due to its supporting features, such as the features of borrowing goods, returning goods, and automatic report generation features
Protoptype Pengairan Sawah dan Monitoring Kualitas PH Tanah Berbasis IOT
Authors:   Program Studi Informatika, Universitas Sulawesi Barat, Megah Sari Dian , Jumardi Jumardi ,   Program Studi Informatika, Universitas Sulawesi Barat, Rasyid Nurdina ,   Program Studi Informatika, Universitas Sulawesi Barat
Published: July 2022

Rice is a food crop commodity that produces rice which plays an important role in the economic life of Indonesia. Rice as a staple food is very difficult to replace by other staples. This study aims to determine the results of the design of the internet-based monitoring system for rice field irrigation and to determine the results of monitoring soil pH with Thinger.io. The tools used in the design of this system are Node MCU ESP8266, Ultrasonic Sensor HC-SR04, Soil pH Sensor, Servo Motor (MicroServo 9G – SG90), UTP Cable. Soil pH sensor can send soil acidity level data to NodeMCU and send data to thingger to display results, while ultrasonic sensor can read elevation value on surface if water level (11 cm) then servo will receive signal to open and when water level height value ( 6 cm) then the servo will receive a signal to close, the last process is to send data to the web server or thingger.io. The results of the pH test are that with a pH value equal to 7 then it is suitable for planting rice seeds and if the pH value is below 7 then it is not suitable for planting rice and dolomid lime will be added to neutralize the acidity level in the soil of paddy fields. The tests carried out are using the BlackBox method and the results of this test are the system runs as expected
Perancangan Game Edukasi Pengenalan Bahasa Pemrograman Menggunakan Construct 2
Authors:   Universitas Adhirajasa Reswara Sanjaya, Anshori Iedam Fardian , Ayuni Kaffah Salsabila ,   Universitas Adhirajasa Reswara Sanjaya, Supa Nahdayanti ,   Universitas Adhirajasa Reswara Sanjaya, Rizal Setiawan Mail Rizal ,   Universitas Adhirajasa Reswara Sanjaya
Published: July 2022

Coding or computer programming for children is now increasingly popular. According to various studies, children who learn coding at a very young age will benefit from learning to critically assess situations, explore different perspectives, build creative solutions, and even develop cognitive abilities. But of course the difficulty of the learning process itself is another level, and again, we need to see the fact that children nowadays are more into video games than learning makes this kind of situation become more complex. Therefore, this research was carried out which aims to design and create an Android-based coding introduction educational game called Funcode. Game development is assisted by the Construct 2 game engine and using the waterfall method from the SDLC or System Development Life Cycle. The game is in the form of a module equipped with a quiz by introducing HTML and CSS programming languages, as well as applying a little Computational Thinking material. Based on the blackbox test results, this mobile game called Funcode is successfully runs without any errors on various types of smartphones that have been tested
Perancangan Sistem Reservasi Meja dan Makanan Pada Rumah Makan Berbasis Web (Studi Kasus Di Rumah Makan Ayam Bakar Celup Mang Rojak)
Authors:   STMIK Rosma, Meiniarti Meiniarti , Gunawan Rahmat ,   STMIK Rosma, Setiawan Anjar ,   STMIK Rosma
Published: July 2022

This study aims to design a reservation system table and food at Roast Chicken Restaurant Mang Rojak that has not utilized internet technology. This application is a solution to the reservation problems that occur and can be used as a means of developing services to customers. The system development method used is the waterfall model. This method consists of several stages of activity flow that runs in one direction from the beginning to the end of the system development project, starting from the analysis of design, design, coding, testing and system implementation. In the analysis phase, the data were collected by observation and interview. The testing of this application is done with Black Box Testing. The results of the study have provided sufficient information about the current food ordering procedure, so that the new system is needed. This table and food reservation information system is website-based that supports online ordering process. This system also provides menu price information and other promotions without coming to the restaurant. Development of this application is needed in order to be able to help issues related to information needs both for the company and customers
Prototipe Alat Kontrol Kualitas Air Dan Penebar Pakan Otomatis Pada Tambak Udang Berbasis Internet Of Things (IOT)
Authors:   Universitas Hamzanwadi, Gunawan Indra , Sadali Muhamad ,   Universitas Hamzanwadi, Wasil Muhammad ,   Universitas Hamzanwadi, Fathurrahman Imam ,   Universitas Hamzanwadi
Published: July 2022

Among all parameters of shrimp pond water quality, the degree of acidity (pH) and temperature play the most important role. Determination of the pH value is usually done by means of manual and periodic measurements by the operator using a pH meter, as well as the feeding process which is still done manually, which of course will occur in the process of feeding that is not. Therefore, the researchers designed a tool that can monitor the degree of acidity (pH) and temperature and make a shrimp pond feed spreader automatically using the internet. The use of connected intelligent software and systems to utilize data collected by sensors using the Internet of Things (IOT) technology approach and control automation using the blynk application platform. This research resulted in a prototype control system and monitoring data related to water temperature, pH content and control of fish feed automatically according to a predetermined time schedule.
Pemetaan Lokasi Penjualan Pupuk Dan Obat-Obatan Pertanian Di Kabupaten Sumbawa Berbasis GIS (Geographic Information System)
Authors:   Universitas Hamzanwadi, Muliawan Nur Amri , Sudianto Aris ,   Universitas Hamzanwadi, Salmiah Salmiah ,   Universitas Hamzanwadi, Suhartini Suhartini ,   Universitas Hamzanwadi
Published: July 2022

Most of the residents of Sumbawa Regency live in rural areas with a livelihood as farmers. In agriculture, of course, farmers need the availability of fertilizers and agricultural medicines. Fertilizers and agricultural drugs have many benefits for farmers, one of which is to stimulate plant growth and to prevent pests on plants. This is done to increase the productivity of agricultural products. However, the existence of shops selling fertilizers and medicines spread across Sumbawa, especially in several sub-districts in Sumbawa Regency, makes farmers and the general public who do not know the area have difficulty finding information on the location of the sales shop. This study aims to produce a Web-based Geographic Information System by displaying a map visualization containing the location of shops selling agricultural fertilizers and medicines spread across Sumbawa Regency. In making this system using the programming language PHP and MySQL. The use of this system is expected to help the general public as well as local farmers who do not know the area in finding the location of shops selling agricultural fertilizers and medicines. This information system contains the address mapping of fertilizer and agricultural drug stores. The research was conducted in Sumbawa Regency. The results of this study are that the public can obtain information via smartphones, assist farmers and the general public in finding the location of sales stores. In addition, to shorten the time for farmers to find locations for selling agricultural fertilizers and medicines in the Sumbawa Regency area
Algoritma Random Forest Untuk Prediksi Kelangsungan Hidup Pasien Gagal Jantung Menggunakan Seleksi Fitur Bestfirst
Authors:   Universitas Bina Sarana Informatika, Yuliani Yuri
Published: July 2022

Heart failure is a global health problem that not only causes physical problems, other impacts such as psychological, social, and economic, as well as depression, which affects treatment, worsens functional status, and increases hospitalization rates to death. According to the World Health Organization (WHO), nearly 17.5 million people die from cardiovascular disease, which represents 31% of deaths in the world. Using machine learning to predict the survival of patients with heart failure so that they can take precautions from the start. The stages of the research carried out include the business understanding stage, the data understanding stage, the data preparation stage, the modeling stage, and the evaluation stage. In this study, using feature selection using best-first resulted in 4 very influential features, namely age, injection_fraction, serum_creatinene and time, and handling imbalance class using the class balancer model. Random forest algorithm with 80% percentage split method which produces 91.45% accuracy, mean absolute error 0.1874, incorrectly classified instances 8.55%, precision 0.915, recall 0.914, AUC 0.953.
Rancang Bangun Pelaporan Penyalahgunaan Narkoba Badan Narkotika Nasional (BNN) Kota Kediri Berbasis Android
Authors:   Universitas Stikubank Semarang, Nuryanto Lilik , Santoso Dwi Budi ,   Universitas Stikubank Semarang
Published: July 2022

This study aims to observe, understand, design and build an information system for reporting drug abuse in the city of Kediri. This study uses the Waterfall method. The research subject is a system that can report drug abuse itself. The theoretical basis of the research used by the author uses Geographic Information Systems. GIS is a computer-based system that aims to store, manipulate, and analyze geographic information. In this research the author uses the Java programming language and the MYSQL database system as user data storage. Username using the primary key Employee Identification Number (NIP). For location mapping that has been carried out by the RPE Action, users who have created an account will be able to access the camera on a smartphone. Later the photos taken by the user will show the location of Latitude and Longitude. The research modeling uses DFD (Data Flow Diagram) modeling which contains DFD level 0 and level 1, ERD (Entity Realionship Diagram) and Flowchart. This study contains interface design, login interface design, main menu design, abuse reporting menu design, service menu design, socialization request menu design, rehabilitation request menu design, P4GN menu design, counseling request menu design, user menu design, mentoring menu design abuse, abuse report table design, edit profile menu design. Interface design is an important part of the application, because the first thing you see running is the application interface
Sistem Informasi Berbasis WEB Pada Alumni Pondok Pesantren Nurul Haramain NWDI Narmada
Authors:   Universitas Hamzanwadi, Fathurrahman Imam , Saiful Muhammad ,   Universitas Hamzanwadi, Samsu Lalu Muhammad ,   Universitas Hamzanwadi, Nurhidayati Nurhidayati ,   Universitas Hamzanwadi
Published: July 2022

Nurul Haramain NWDI is a boarding school founded by TGKH. Djuaini Muchtar (late) in 1991, which is located in Narmada District, West Lombok Regency. Santri do not only come from the islands of Lombok or West Nusa Tenggara, but also come from various regions in Indonesia, as the years go on, more and more students enter Islamic boarding schools and of course, every year there are always students who finish their education. The lack of information about alumni that is published every year makes it difficult for students and the outside community to get information. Alumni are an important part of an educational institution, so to overcome this problem, an alumni information system is needed, to make it easier to get to know each other. Based on the results of the research that has been done by the author in the form of an information system for alumni of the Nurul Haramain Islamic Boarding School NWDI Narmada web-based, where in building this system used system development tools in the form of software used, such as data flow diagrams (DFD), PHP, which is a programming language. and My SQL for the database.
Evaluasi User Interface Website Prodi Teknik Informatika UNRI Menggunakan User Experience Questionnaire (UEQ)
Authors:   Universitas Riau, Susilo Edi , Rizal Andhi Rahmat ,   Universitas Riau, Ramadhani Dian ,   Universitas Riau
Published: July 2022

The current website of Informatics Programme at Riau University is being redesign. This process need to be done because the past design had a few shortcomings, such as not being responsive and less attactive to user, in term of UI. To figure out weather the new design meets the UX aspects, it is necessary to make an evaluation. This research does that evaluation about current website User Interface (UI) using UEQ. UEQ,as for today, is consider a fast and simple tools to test UX aspects of certain website. The UEQ will be distributed to 50 respondents which is Informatics Programme’s student. This respondent consist of 25 men and 25 women. Respondent data was analyzed using UEQ Data Analysis Tools. The result was 4 aspects which is consider good, such as attractiveness, efficiency, dependability and stimulation. There was 1 aspect which score above average, namely perspicuity. One last aspect was score below average, which is novelty. From this research result, in general the UI design and UX aspects of this website is consider good. However, to reach maximum performance some adjustment need to be done. Especially from the perspicuity ascpect. The developer need to clarify the way to use this website. The approach can be taken from general web design principal. As for novelty aspects, improvement need to be done to its content with creative and inovatif idea. This will bring unique value for informatics programme website compare to another sites.
Aplikasi Penjualan Gerabah Berbasis Android Sebagai Media Pemasaran Online (Studi Kasus : UD Barokah Desa Penakak Masbagik)
Authors:   Universitas Hamzanwadi, Candra Permana Baiq Andriska , Nurhaliza Siti ,   Universitas Hamzanwadi, Nurhidayati Nurhidayati ,   Universitas Hamzanwadi, Mahpuz Mahpuz ,   Universitas Hamzanwadi
Published: July 2022

One of several forms of handicrafts that are widely sold in East Penakak Masbagik Village is pottery. UD. Barokah is one of the shops selling pottery products. However, the transaction system used so far still uses a manual system where buyers directly come to the pottery sales place to find or buy the preferred item. With the increase in the current electronic-based sales system, it is necessary for business actors to implement an online-based sales system (e-commerce) so that the marketing reach of goods becomes wider, one of them is by utilizing the android platform which is almost owned by most people these days. With the application of an Android-based online e-commerce system, it is expected to help increase sales of pottery at UD. Barokah especially to deal with the pandemic period where some conventional buying and selling activities are starting to decrease due to the limited community activities in public areas
Pengembangan Sistem Aplikasi Barbershop Berbasis Android Untuk Menumbuh Kembangkan Usaha Barbershop
Authors:   Universitas Hamzanwadi, Bahtiar Hariman , Mahmudah Huswatun ,   Universitas Hamzanwadi, Putra Yupi Kuspandi ,   Universitas Hamzanwadi, Fathurahman Fathurahman ,   Universitas Hamzanwadi
Published: July 2022

The development of communication and information technology is one of the developments that can be felt in everyday life. The development of smartphones or smartphones and the internet is one of the real evidences. Another development that has felt its impact is the development of fashion. Nowadays fashion is no longer synonymous with women, but also for men. Not only fashion clothes or accessories, but also hair fashion. More and more hairstyles are becoming more and more confusing for consumers to choose the type of hairstyle they want. Many men also do not know the details obtained from other people about the new hairstyle. Therefore, the development of this Barbershop application can also help choose the desired hairstyle and can assist application users in making their choice. In addition, the application can determine the location of the nearest or best Barbershop for its users. Based on the conclusions of the results of this study, the application of barbershop services at Barbershops is useful for facilitating information problems and ordering barber services without customers having to come to the Barbershop and being able to create a good system that can facilitate employee performance at the Barbershop itself
Effect of Milling Time on Physical and Mechanical Properties of Ceramics Derived from the CaO-MgO-Al2O3-SiO2 System
Authors:   School of Materials and Mineral Resources Engineering,  Universiti Sains Malaysia, Nibong Tebal, Penang, 14300 MALAYSIA, Ismail Hamisah , Mohamad Hasmaliza ,   School of Materials and Mineral Resources Engineering,  Universiti Sains Malaysia, Nibong Tebal, Penang, 14300 MALAYSIA, Hussin Rosniza ,   Advanced Manufacturing and Materials Centre (AMMC), Faculty of Mechanical and Manufacturing Engineering,    Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, MALAYSIA,   Department of Mechanical Engineering Technology, Faculty of Engineering Technology  Universiti Tun Hussein Onn Malaysia, Pagoh Campus, Edu Hub Pagoh, KM 1, Jalan Panchor, 84600 Johor,    MALAYSIA
Published: July 2022

This study produced ceramics powder derived from the CaO-MgO-Al2O3-SiO2 system using mechanical wet milling and cold pressing method. The milling time was changed between 30 min to 2 h and sintered at 950 ⁰C for 1 h. The pellet was performed via cold pressing in ambient temperature and pressure of 5 tonnes. The effect of milling time on the linear shrinkage, density, porosity and compressive strength of the derived from CaO-MgO-Al2O3-SiO2 system were investigated. X-ray diffraction results demonstrated that a multi-phase of quartz and akermanite-gehlenite was obtained after sintering at 950 °C for 1 h. The results show that the increasing milling time had significantly affected the ceramics' particle size, specific surface area, phase, linear shrinkage, density, porosity, compressive strength and Young's modulus. When the milling time was raised, the density and compressive strength decreased. However, the increase in milling time increased the linear shrinkage and porosity. It was observed that the compressive strength of the pellets reached their maximum value (16.6 MPa) at a milling time of 1h and then decreased with increasing milling time.
A LoRa-Cloud Based Water pH and Air Temperature Sensor Hub
Authors:   Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, MALAYSIA, Ly Yap Sze , Hairom Nur Hanis Hayati ,   Institute for Integrated Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, MALAYSIA, Harun Nor Hazlyna ,   Data Science Research Lab, School of Computing, Universiti Utara Malaysia, 06010 Sintok, Kedah Darul Aman, MALAYSIA, Soon Chin Fhong ,   Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, MALAYSIA
Published: July 2022

Water pollution has become one of the important issues in Malaysia which occurs frequently especially in the rivers of Selangor. One of the indicators of pollution is the pH of the water. Thus, the main purpose of this study was to design a LoRa-Cloud-based water pollution sensor hub to monitor the real-time water quality. Sensor devices for pH (SEN0161-V2), and temperature and humidity (DHT11) were used to accurately detect water pH, and air temperature and humidity, respectively. REYAX RYLR896 Long Range Low Power (LoRa) transceiver module enabled the transmission of sensor data from the sensor node to the gateway node, while NodeMCU ESP8266 enabled transmission of sensor data to the Cloud. Ubidots IoT platform was used to monitor the real-time sensor data. A 3 W power supply was continuously supplied to the prototype and autonomy was guaranteed with the addition of monocrystalline solar cells. The performance of the prototype device was tested based on the monitoring function, and the overall pH level of Taman Metropolitan Batu Park Lake was slightly alkaline as the pH of the lake water ranged from 7.32 to 9.08 with data updating every 5 minutes on the Ubidots dashboards. The LoRa-Cloud-based water pollution sensor hub was successfully developed to monitor the real-time water quality through the Ubidots IoT platform.
A Study of MPPT Charge Controller Roles in Photovoltaic Energy Management
Authors:   College of Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, MALAYSIA, Ahmad Nordin Atiqah , Sazali Norazlianie ,   College of Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, MALAYSIA
Published: July 2022

Nowadays, the world's demand the energy is increasing. So, we need a good energy management system to use the available energy. An energy management system consists of maximum power point tracking (MPPT) charge controller, battery management, and the power conversion stage to control and reduce energy consumption. Solar energy is used solar radiation and is converted into electrical energy. In photovoltaic (PV) system consists of a PV module, charge controller, battery storage, and load. Arduino NANO is used in this project because it's low cost and has an efficient microcontroller in the MPPT charge controller to prevent the battery from overcharging and display the maximum power point (MPP). Perturb and Observe (P&O) and Incremental Conductance (InC) algorithm is used in the MPPT charge controller to transfer maximum power from the PV module which is executed using a microcontroller. The voltage, current, and power from the MPPT charge controller, are shown on a liquid crystal display (LCD). The benefit of this project is to achieve high efficiency and low cost of photovoltaic modules for the design of photovoltaic systems with a simple MPPT.
A Bluetooth and Vision Controlled Automatic Guided Vehicle
Authors:   Faculty of Electrical and Electronic Engineering,  Universiti Tun Hussein Onn Malaysia, Batu Pahat, 84600, MALAYSIA, Xiang Wong Chun , Fhong Soon Chin ,   Faculty of Electrical and Electronic Engineering,  Universiti Tun Hussein Onn Malaysia, Batu Pahat, 84600, MALAYSIA
Published: July 2022

The aim of this project is to construct a Bluetooth (2.4GHz) and vision controlled auto guided vehicle (AGV) for use during the COVID-19 pandemic. The auto guided vehicle can be maneuvered by using an application in mobile phone or auto guided function. The auto guided function of the vehicle is following the label that is affixed on the user. Bluetooth communication was applied to control the AGV at a maximum distance of 10 m. The auto guided vehicle can carry a maximum of 10 kg load. The vision system applied could track and follow the human movement affixed with a label. The best following distance of the AGV developed is within 80cm and the angle of detection is 55°. The auto guided vehicle can reduce the risk of the user in contacting the AGV and hence, minimising the risk of virus infection. It also helps the senior user to save energy in pushing the heavy cart.
Estimating the prevalence of anemia and its association with perioperative blood transfusion in patients who have no haemoglobin measurement using multiple imputation and inverse probability of treatment weighting
Authors: Miller Matthew , Delroy-Buelles Ilana , Congreve Kate , Ho Shir-Jing , Morris Richard
Published: July 2022

Anemic patients are at increased risk of intraoperative and postoperative transfusion, infection and mortality. Anemia is common in surgical patients, previous studies report a prevalence of 30-40%. While patient blood management programs advise screening for anemia, other perioperative initiatives advocate limiting preoperative laboratory testing. Therefore, a large number of surgical patients may not be screened, missing the opportunity for further investigation and management. In our single-center retrospective cohort study of all adult surgical patients over one year, we sought to estimate the proportion of anemia in patients without a preoperative blood test and their associated intraoperative and postoperative transfusion risk using multiple imputation to estimate missing hemoglobin values and inverse-probability-of-treatment-weighting to balance the study groups. Multiple imputation generated 39 datasets containing plausible hemoglobin values for patients missing a hemoglobin. Patients were classified as known-anemic, known-not-anemic, imputed-anemic and imputed-not-anemic if the hemoglobin was measured or imputed. We then compared red-cell transfusion yes/no by logistic regression, and number of red-cell units transfused by linear regression, pooling the results. Thirty-nine percent of 7879 patients were missing a hemoglobin, of whom 20-35% may be anemic. Only known-anemic patients had an increased intraoperative transfusion risk (odds ratio (OR) 3.13, 95% confidence interval (95%CI) 2.19 to 4.48). Both known-anemic and imputed-anemic patients had increased postoperative transfusion risk (OR 3.93 (95%CI 2.92 to 5.29), OR 2.99 (95%CI 1.61 to 5.56), respectively). Anemia may be common in patients missing a haemoglobin, and may confer an increased risk of postoperative transfusion compared to known-anemic patients. Removing them from observation studies on anemia risks sample bias. Excluding patients from pre-operative testing may miss the opportunity to identify anemia and modify postoperative transfusion risk and other adverse health outcomes. Future research could use point-of-care tests to reduce screening costs, and further investigate adverse outcomes risks in these missing patients.
How will our collaborative projects work?
Authors: AISDL Mindsponge
Published: July 2022

This special first post on the Collaborative Projects topic will serve as a guide for a prospective participant to work with us and an invitation to join one of our ongoing research projects.
Specimen editionis criticae digitalis: Nicolai episcopi Modrussiensis oratio de funere Petri cardinalis S. Sixti (1474)
Authors: Jovanovic Neven
Published: July 2022

De editione docta et editione digitali. De Nicolao Modrusiensi (c. 1427 – c. 1480). De editione digitali orationis eius in funere Petri Riarii cardinalis S. Sixti: editionis divisio, inscriptiones interretiales (URI), fontes, historice, grammatice, rhetorice, vis verborum, usus clausularum, versio Croatica. Ubi inveniatur, quomodo utamur, quomodo citemus.
Lone Gunmen, politics, technology and culture. [ep. 7-12] (historiography V:5)
Authors: Akmut Camille
Published: July 2022

Computer science and technology : historiography V (5)
Comments to “Yes, Stephen Hawking Lied To Us All About How Black Holes Decay”
Authors: Maes Stephane
Published: July 2022

This paper discusses the comments presented in “Yes, Stephen Hawking Lied To Us All About How Black Holes Decay”. It shows that there are actually two contributions to, or two ways to characterize, Hawking radiations: the one from particles pairs created on the horizon of the black hole, with one particles falling behind the horizon, and the one from particle pairs created between the horizon and infinity, which have one particle reach infinity. We thought it is worth making sure all realize this.
Science Policy
Authors: Cranier Louis
Published: July 2022

Science policy focuses on knowledge production and the role of knowledge networks, collaborations, and the complex distributions of expertise, equipment, and know-how. Understanding the processes and organizational context of generating novel and innovative science and engineering ideas is a core concern of science policy.
Virtual image patch-based cloud removal for Landsat images
Authors: Wang Zhanpeng , Ke Yinghai , Zhou Demin , Li Xiaojuan , Zhu Lin , Gong Huili
Published: July 2022

The inevitable thick cloud contamination in Landsat images has severely limited the usability and applications of these images. Developing cloud removal algorithms has been a hot research topic in recent years. Many previous algorithms used one or multiple cloud-free images in the same area acquired on other dates as reference image(s) to reconstruct missing pixel values. Although it has been widely recognized that reference image(s) has great impacts on the performances of cloud removal algorithms, it still remains challenging to determine the optimal reference image(s). In addition, abrupt land cover change can substantially degrade the reconstruction accuracies. To address these issues, we present a new cloud removal algorithm called Virtual Image patch-based Cloud Removal (VICR). For each cloud region, VICR reconstructs the missing surface reflectance by three steps: virtual image patch construction based on time-series reference images, similar pixel selection using the newly proposed temporally weighted spectral distance (TWSD), and residual image estimation. By establishing two buffer zones around the cloud region, VICR allows automatic selection of the optimal set of time-series reference images. The effectiveness of VICR was validated at four testing sites with different landscapes (i.e., urban, croplands and wetlands) and land change patterns (i.e., phenological change, abrupt change cause by flooding and tidal inundation), and the performances were compared with mNSPI (modified neighborhood similar pixel interpolator), WLR (weighted linear regression) and ARRC (AutoRegression to Remove Clouds). Experimental results showed that VICR outperformed the other algorithms and achieved lower Root Mean Square Errors in surface reflectance estimation at the four sites. The improvement is particularly noticeable at the sites with abrupt land change. By considering the difference in the contributions from each reference image, TWSD improved the ability of VICR in predicting abrupt change in surface reflectance. Moreover, VICR is more robust to different cloud sizes and to changing reference images. VICR is also computationally faster than ARRC and mNSPI. The framework for time-series image cloud removal by VICR has great potential to be applied for large datasets processing.
Misperceiving the value of information in predicting the performance of others
Authors: Loewenstein George , Moore Don A , Weber Roberto
Published: July 2022

Economic models typically allow for “free disposal” or “reversibility” of information, which implies non-negative value. Building on previous research on the “curse of knowledge” we explore situations where this might not be so. In three experiments, we document situations where participants place positive value on information in attempting to predict the performance of uninformed others, even when acquiring that information hurts their earnings. In the first experiment, a majority of participants choose to hire informed – rather than uninformed – agents, leading to lower earnings. In the second experiment, a significant number of participants pay for information – the solution to a puzzle – that hurts their ability to predict how many others will solve the puzzle. In the third experiment, we find that the effect is reduced with experience and feedback on the actual performance to be predicted. We discuss implications of our results for the role of information and informed decision making in economic situations.
Signals of copying in the cultural evolution of cattle brands are robust to time- and space-averaging
Authors: Youngblood Mason , Miton Helena , Morin Olivier
Published: July 2022

Cattle brands (ownership marks left on animals) are subject to forces influencing other graphic codes: the copying of constituent parts, pressure for distinctiveness, and pressure for complexity. The historical record of cattle brands in some US states is complete due to legal registration, providing a unique opportunity to assess how sampling processes leading to time- and space-averaging influence our ability to make inferences from limited datasets in fields like archaeology. In this preregistered study, we used a dataset of ~81,000 Kansas cattle brands (1990-2016) to explore two questions: (1) the relative influence of copying, distinctiveness, and complexity on the creation and diffusion of brand components, and (2) the effects of time- and space- averaging on statistical signals. By conducting generative inference with an agent-based model, we found that the patterns in our data are consistent with copying and pressure for intermediate complexity. In addition, by comparing mixed and structured datasets, we found that these statistical signals of copying are robust to, and possibly boosted by, time- and space-averaging.
Identity Avoidance in Turkish Partial Reduplication: Feature Specificity and Locality
Authors: Tang Kevin , Akkus Faruk
Published: July 2022

This study investigates the Turkish partial reduplication phenomenon, in which the reduplicant is derived by prefixing C1VC2 syllable, where C1V are identical to the word-initial CV of the base and the C2 ends in one of the four linking consonants: -p, -m, -s, -r. This study re-examines the factors conditioning the choice of the linking consonant, by focusing the nature of the (dis)similarity (feature specificity) and the proximity (locality) between the consonants in the base and the linking consonant, using an acceptability rating task with over 200 participants and a diverse set of stimuli in terms of length and word shapes. Results indicate a gradient identity avoidance effect that extends over all consonants in the base. Crucially, the effect of all consonants is not uniform, with the strength of the effect decreasing further into the base. The study also uncovers an elusive interplay between the distance-based decay effect and the syllable position effect, both of which turn out to play a role in these non-categorical patterns with multiple features. Furthermore, results indicate that identity avoidance operates over both individual features as well as whole segments. Overall, the study argues that locality-sensitive feature-specific identity avoidance constraints are part of the grammar.
How can I lead social change when I feel like a fake? Exploring the impostor phenomenon among social justice allies in the workplace
Authors: Warren Michael Thomas , Warren Meg Aum , Smith Brooklynn , LaVelle John
Published: July 2022

Purpose: Sustained allyship requires complex and challenging work, often in hostile environments. We propose that these characteristics can induce feelings of impostorism among allies. Our purpose is to examine the prevalence of impostorism and test links with allies’ mental health and workplace functioning.Design/Methodology/Approach: Survey data from two samples (N = 778) and (N = 973) were used, latent profile analyses were conducted, and links between profile membership and mental health and workplace outcomes were examined.Findings: Results indicated that 'Competent Ally Impostors' had higher depressive symptoms and anxiety than 'Confident Allies', suggesting that this subgroup may be impeded by impostorism, and their mental health may suffer. Conversely, 'Disengaged Individuals' and 'Average Allies' reported less psychological safety, work efficacy, and job satisfaction than 'Confident Allies' and 'Competent Ally Impostors' suggesting that allyship competencies - not impostorism - may drive psychological safety, work efficacy, and job satisfaction.Originality/Value: This paper is among the first to examine the role of impostor phenomenon among allies, and its effects on allies’ mental health and workplace outcomes. Consequently, it carries implications for impostorism posing as a barrier to sustained allyship in organizations.