Stroke is the number one cause of disability and the second cause of death in the world. Blood flow that is not smooth in stroke patients causes hemodynamic disorders including changes in the value of oxygen saturation in the blood (SpO2) which can interfere with the function of internal organs including the heart due to lack of oxygen intake. So we need a system to monitor the oxygen saturation value which can be used as an early indicator in recognizing stroke patients.
This system uses detection of two sensors to measure oxygen saturation in the blood, a microcontroller to process data, a monitor to display data, a buzzer as a warning of the lower limit of measurement and a micro sd card module to store measurement data that has been running. Parameters displayed include the date of measurement, patient ID, SpO2-1, SpO2-2, last SpO2-1 and last SpO2-2. This system will measure and display the SpO2 value of both right and left arms simultaneously. Stroke patients who experience muscle weakness in one hand may experience different values with a hand that does not experience muscle weakness. This study aims to develop an SpO2 monitoring system that will be used to detect stroke patients with non-invasive methods.
The results show that the system has been developed and can be used to measure the patient's SpO2 from both hands simultaneously with a measurement error rate of ±2% for each sensor from standard medical equipment.

Article history:

Received 30 Mei 2020
Received in revised form 2 Juni 2020
Accepted 10 Juni 2020
Available online 12 Juni 2020



















ABSTRACT

Alcohol is the common name for organic compounds that have a hydroxyl group attached to carbon and hydrogen atoms. The alcohol that is commonly found in liquor is ethyl alcohol or it is also called ethanol, but it is usually referred to as alcohol alone. Drinks with an alcohol content of 40% can lose consciousness, leading to accidents for alcohol-affected drivers. To detect alcohol in the body using an alcohol tester. Researchers tried to make a measuring instrument for alcohol levels in the body using several components such as Arduino nano, MQ 3 sensor, OLED, charger module, battery, resistor, push button, and buzzer. The design of a portable alcohol level detector through breath can work well, namely the results of the reading of alcohol levels in the body by the MQ-3 sensor through the breath and displayed on the Oled Display in units of% BAC (Blood Alcohol Concentration), in the sample comparison of the alcohol level reading between Final project tool with a comparison tool alcohol tester obtained the percentage difference in an average of 0.01% BAC.

Keywords: Alcohol, Arduino Pro Micro, MQ-3 Sensor, OLED, Charger Module, Battery, Resistor, Push Button, and Buzzer

Sentiment analysis of comments from visitors to tourist attractions and the public on tourist attractions in Sukabumi Regency which is one of the areas with various categories of tourist objects and is a sector of economic income for the surrounding community or for related parties such as the government and managers, in sentiment analysis research This includes using the Nave Bayes classification algorithm to examine the sentiment of tourist visitors and the performance of the classification model used. The data used in this research was taken from the website from Tripadvisor and Google Maps using a crawling technique, which then processed the data by a pre-processing process and then applied a classification to the data and got a sentiment visualization by processing word frequency on tourist visitor sentiment data. The results of the accuracy of the model used were re-tested with the k-fold cross validation method and the results of sentiment visualization got the frequency of words that most often appear on negative sentiment labels are garbage, beaches, lacking, places, roads, parking, dirty, entering, caring, clean , expensive, pay, manage, good and water.

The COVID-19 pandemic had a significant impact on UMKM. Social distancing has changed consumer behavior from conventional to digital. UMKM Shapro Official is an original automotive t-shirt vendor that was established in 2017. Shapro Official has difficulty in introducing and marketing products with a clear target consumer and competitive price competition. Sales promotions have not been managed optimally and sales data management is still manual (notes). Owners also have difficulty monitoring sales reports in real time. Website created using CMS Wordpress to help Shapro Official difficulties. The system development method is Rapid Application Development (RAD). System analysis method using fishbone diagram and system modeling using Unified Modelling Language (UML). The results showed that the existence of a website can help the management to manage promotions, sales and sales reports. Having a website makes sales targets focus and increase. 
 

In the current era, learning adheres to the 2013 curriculum which includes HOTS (Higher Order Thinking Skills) consisting of critical thinking competencies, creativity and innovation, communication skills, collaboration skills and selfconfidence. These five things need to be trained or improved for deaf children so that they can take part in learning well. So learning media products are made that can be used to recognize letters and numbers. This Learning Media is equipped with sign language to support the understanding of deaf children in addition, it is packaged with an attractive appearance so that deaf children are interested in learning it. Often in daily teaching and learning activities students still often experience problems in remembering the material being taught both in the
introduction of letters and also the introduction of numbers and what becomes an obstacle for students learning must be done repeatedly so that they can
remember it and can really understand what it means. being taught and also they are sometimes bored and lazy in learning. From the problems that occur above,
it is necessary to have a learning media that can help children with disabilities, especially the deaf, especially for the introduction of numbers and letters
so that they can easily understand and understand letters and numbers. not bored, bored and lazy in learning. Learning media in the form of an android
application so that it can be used on smartphones which are currently very widely used by both teachers and parents of students with disabilities.

Football School (SSB) is a supporting facility for children who have potential in the field of soccer in order to improve their skills. Football is a large ball game played in teams with a team of 10 players and 1 goalkeeper. In this game, teamwork is an important value that must be possessed to achieve competitive victory. However, along with problems in the form of discrepancies in operational standardization in soccer schools, causing negative public perceptions of the existence of this school. Therefore, a research was conducted to build a decision-making model in determining the choice of soccer schools in accordance with legal standards for children, namely using the Analytical Hierarchy Process (AHP) method. The AHP method is one method that can solve a problem because there is a hierarchy where there are several important aspects, namely Objects, Criteria, Sub Criteria, and Alternatives. By combining data and knowledge, it can increase effectiveness in decision makers. It is hoped that in the future, this research can help the community to support their children in the field of soccer by determining the appropriate soccer school.

SMA YATPI Godong merupakan perwujudan dalam membentuk, mencerdaskan generasi muda Bangsa Indonesia. Semakin bertambahnya jumlah siswa setiap tahun, menuntut ketelitian dan ketelitian dalam memberikan informasi yang akurat dan tepat kepada siswa tanpa mengulang data yang sama atau informasi, serta tentang transparansi data keduanya nilai, kehadiran dan biaya kuliah harus dapat diakses kapan saja baik oleh siswa maupun orang tua wali. SMA YTPI Godong sangat membutuhkan a sistem yang dapat mendukung proses penyajian informasi akademik, saat ini sistem akademik diimplementasikan dengan menggunakan metode konvensional, data hanya disimpan di komputer dan tidak dapat diakses oleh seluruh civitas akademika dan orang tua. Untuk menghadapi ini masalah, sistem Informasi Akademik Berbasis Web dibutuhkan di SMA YTPI Godong sebagai amemberikan solusi yang akurat, cepat dan tepat informasi. Sistem informasi akademik ditawarkan dapat mengelola informasi akademik, baik data kehadiran siswa, absensi mengajar dan absen mengajar guru, mengelola data nilai, jadwal pelajaran, jadwal mengajar guru, dan bisa mempublikasikan informasi yang berkaitan dengan akademik. Itu pengembangan informasi akademik berbasis web ini sistem menggunakan pengembangan aplikasi cepat (RAD) metode, model pengembangan ini digunakan karena ini model dianggap model dengan mengutamakan waktu, jadi prosesnya relatif singkat sehingga dengan pengembangan sistem informasi ini dapat dilakukan bermanfaat dalam memberikan kemudahan baik bagi siswa maupun guru.

By looking at current technological developments that already use automatic sensors, the application of the concept to this system can be a solution for dealing with ornamental fish farming owners. In this research, a tool is made that can perform feeding, checking temperature, water turbidity, feed level, water level and water pump control, from this information will be sent to android by firebase automatically monitored and controlled anywhere via android. This tool is designed with ease of maintenance and is an extension of the existing tools. IoT technology is used to monitor online, based on Firebase and Nodemcu Esp8266. In this study, researchers used the research method of the Borg and Gall (1987) model from 10 steps to 6 steps. The results of this study were carried out by an expert validation test to get a value of 30 which means "Very Good (Valid)". While the effectiveness test by 10 users plus by experts and employee users get a total score of 35.16 which means the effectiveness test is classified as "Very Good (Valid)" it can be said that the new system is more effective than the old system.

Covid-19 has spread widely with various variants, disrupting human social activities, the activities in question include the implementation of events, but there are other alternatives by utilizing technology, events can still be held online. However, the number of events that are held online makes it difficult for someone to find the event they want because there are too many events on the website so someone experiences information overload. Therefore, the authors conduct research with the goal to make it easier for someone to find the event they want by implementing a recommendation system on the website. In this study, the authors make a recommendation system using the Content-Based Filtering method in recommending an online event. The results of this study obtained an accuracy of 86% of the performance of the model carried out by SVM.

The behavior of changing the use of technology for business actors is very rapid. Information of system is form of data that has been processed through a certain model into information that can be used by the recipient in making decisions.
Some MSME actors with a Data List of product images and detailed information on their products to be marketed to customers using laminated paper. Marketing information using the Website implements CMS with E-Catalog as an alternative solution. Reader and Viewers can view the Catalog privately or together. The treatment of the Plugin model with the CMS that has been embedded on the website is reliable because it is online.
Several list images are displayed on WhatsApp Status and social media to introduce products to the public with the aim of increasing sales volume and selling in the market. This is an obstacle if one day people need pictures but do not have complete detailed information. High purchasing power is expected to be created from the spread of E-Catalog regarding products from MSMEs that have been installed on the E-Catalog website. Websites with online CMS can be opened on any device by requiring an internet connection, making it easier for marketing and complete information for consumers, customers and MSME business players.