Indonesia ranks seventh in the world for cases of early marriage and the second highest after Cambodia in Southeast Asia. Early marriage occurs in women less than 21 years and men less than 25 years, which poses a health risk for women because it can experience complications of pregnancy and childbirth and even cause maternal and infant death. The purpose of this study was to determine the culture of the developing community as a factor in the occurrence of early marriage. This research design is quantitative using cross-sectional, with a sample of 72 people in Karangrejo District in June 2022. The sample recruited randomly using simple random sampling. The data obtained by distributing questionnaires to respondents and data analysis using the Chi-Square statistical test. Based on the results of the study, there is a significant relationship between community culture and the occurrence of early marriage (p-value = 0.028). Community culture is related to early marriage, so the community and parents pay more attention to the impact of early marriage on their children. Therefore, it is necessary to educate parents and society about the risks of early marriage.

Robot lengan merupakan sebuah alat mekanik yang dapat melakukan sebuah proses manipulasi dengan mengguanakan lengan mekanik. Robot lengan dibuat menyerupai lengan manusia memiliki sifat fleksibel sehingga mudah digunakan untuk melakukan suatu pekerjaan. Robot lengan memiliki jumlah derajat kebebasan (degree of freedom) DOF untuk melakukan gerakan tertentu. Rancangan robot lengan ini memiliki 3 derajat kebebasan  atau 3-dof dimana setiap  joint  (sendi)  memiliki gerakan berputar atau rotasi yang dapat melakukan  pergerakan  pada sumbu x, y, dan z dalam ruang tiga dimensi sebagai acuan gerak robot lengan ini menggunakan 3 motor stepper sebagai pengeraknya. Ada berbagai cara untuk membuat sebuah rancangan robot lengan, salah satunya adalah mengunakan invers kinematik yaitu, mencari solusi untuk setiap sudut pada tiap motor stepper agar posisi end-effector dapat tercapai. Dengan harapan proses rancangan robot lengan ini dapat membantu pembelajaran mengenai perubahan gerak pada robot lengan untuk menggambar menggunakan invers kinematik.

Corona virus or commonly known as COVID-19, where the virus can be transmitted by animals or by humans, with symptoms such as a high fever that can reach 37.7? or more, or low blood oxygen levels and handling cases of the covid- 19 virus has been pursued properly. With direct treatment by doctors, treatment in hospitals to self-isolation treatment and with the application of self-isolation for covid-19 patients, it is hoped that they can always see the condition of body temperature and oxygen levels in the blood. This study, the method of checking the number of heart beats of isoman patients and the amount of oxygen in the patient's body was developed by connecting the device to the IOT Telegram, which for the microcontroller used is Wemos D1minilite and with this development it is hoped that it can help the front group to overcome COVID-19 to always be able to help patients who are running isoman. The results of the testing of the tools made obtained a data success of 99.71% by comparing the results of the two tools, namely a tool made by researchers with an oximeter, and in these results obtained a data error value of 0.29% of the total data of 20 isoman patients. The data used were taken from COVID-19 patients who were self-isolating, and there were some patients whose test results were below the specified parameters.