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Incremental rotary encoder is a sensor that can be used to measure the degree of rotation in ship steering simulations. To create a ship steering simulation, Visual Basic software was used to simulate the movement of the rudder and ship. Meanwhile, to obtain incremental rotary encoder reading data, serial communication is used via Universal Serial Bus (USB) media bridged by Arduino which is programmed to convert incremental sensor signals into ASCII signals with a bolt rate of 9600 bps. The aim of this research is to test the accuracy level of the incremental rotary encoder sensor in ship steering simulations using Visual Basic software on commercial ships by using the Solas rule that a ship's rudder must comply when rotated from the midship position to the 35 degree port side position followed by the 35 degree position. starboard side and returning to midship, the rudder movement time was less than 28 seconds. Test results in terms of response speed of the incremental rotary encoder sensor are very good, while in terms of accuracy level for one degree of steering rotation, the result is 4.571 on the Arduino IDE serial monitor reading..

Protracted labor is correlated with an increase in maternal and fetal motility, an increase in abnormalities in the physiology of labor, and an escalation in the rate of caesarean section delivery. In women with prolonged labor, there is an increased risk of death due to atonic uterus, birth canal lacerations, infection, fatigue, and shock, however in infants, prolonged labor is not associated with an increase in infant mortality, decreased APGAR score, trauma, and infection. With adequate physical and psychological preparation, the impact of prolonged labor can be reduced. The (PRE) is a bodywork involving waist and hip rotations. This research employs Systeematic Literature Reviews (SLR), a synthesis of systematic, clear, and comprehensive literature studies, by identifying, analyzing, and evaluating existing data using explicit research methods and incorporating critical review procedures into the selection study. The data consists of 6 national journals and 1 international publication indexed by Shiinta Indonesia and Scopus with Q2standard Results in 7 journals utilizing observation sheets and parttographs for data collection instruments. In one of the seven journals reviewed, the Pellvic Rocking Exercise technique was applied at TM 3 gestational age, between 34 and 35 weeks. When the laboring mother enters the first stage of the active phase, another publication employs the Pelvic Rocking Exercise technique. Conclusion: Pelvic Roccking Exercise is effective in shortening the active phase till the full opening of the cervix in primiparous moms. Pelvic rocking using a birth ball helps the baby to rotate into the optimal position and shortens the first stage of labor, therefore reducing labor pain and providing comfort to the mother. It is anticipated that health care workers will become facilitators for expectant mothers and provide physical support for the profession.

The method of learning the universe at TK Pertiwi Bebengan, Kec. Boja, Kab. Kendal, Central Java is still simple, namely explaining the material by displaying a 2-dimensional still image. This makes students unable to see directly the process of rotation and movement of celestial bodies in the universe. For this reason, it is necessary to create an application that can display the process through 3D animated moving images using Augmented Reality (AR) based technology. The research method used is Prototype, while the architectural design uses UML and software applications using Unity3D, Vuforia, Photoshop CS6 and Blender. The final results of the study are 1) on testing application features made with Unity3D and Vuforia software can run well, 2) on device testing there are 2 out of 4 smartphones that cannot run the application so that a minimum specification of a smartphone is required, 3) on distance testing with a height of 20 cm, it requires the right camera tilt angle, which is between200 to 900. The conclusion of the research is that this application can run well on mobile devices registered in Google's ARCore database and minimum specifications of Android 8.0 Oreo. In addition, it is necessary to pay attention to the right camera tilt angle so that it can display 3D objects.