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Background : In carrying out daily activities, of course, it requires good body health, but with age the body's health condition decreases which is prone to problems, one of which is osteoarthritis. Osteoarthritis is a cartilage disorder characterized by cartilage degeneration and reduced synovial fluid in a joint which eventually causes joint stiffness, swelling, pain, and limited mobility. Objective : The counseling was held aimed at providing education to the elderly about cases of osteoarthritis, especially about the definition, symptoms, causes, prevention and benefits of active and active resisted exercise at home to reduce complaints of elderly people with osteoarthritis. Research methode : The method used is to provide health education about osteoarthritis to the elderly by using leaflets as a media for counseling, giving pre-test and post-test in the form of questions to the elderly in order to measure the effectiveness of the education provided. Result : The counseling went smoothly and in the evaluation results there was an increase in the knowledge of the elderly from 20% to 100% after being given education. The outreach activities that have been carried out at the Elderly Posyandu “KRESNA”, RW 11-Bedali Indah, Ds. Bedali, Lawang, Malang can increase the knowledge and insight of the elderly about osteoarthritis and how to prevent and treat osteoarthritis independently by doing active exercise and active resisted exercise. &nbsp, Pendahuluan : Dalam melakukan aktifitas sehari-hari pastinya memerlukan kesehatan tubuh yang baik, namun seiring bertambahnya usia kondisi kesehatan tubuh mengalami penurunan yang rentan akan terjadinya masalah-masalah salahsatunya adalah osteoarthritis. Osteoarthritis merupakan suatu kelainan pada kartilago yang ditandai dengan adanya degenerasi pada tulang rawan dan berkurangnya cairan synovial pada suatu sendi yang akhirnya menyebabkan kekakuan pada sendi, pembengkakan, nyeri, dan keterbatasan mobilitas. Tujuan : Penyuluhan diadakan bertujuan untuk memberikan edukasi kepada lansia tentang kasus osteoarthritis terutama tentang definisi, gejala, penyebab, pencegahan dan manfaat latihan aktif dan aktif resisted secara mandiri dirumah untuk mengurang keluhan lansia yang penderita osteoarthritis. Metode: Metode yang digunakan dengan memberikan penyuluhan kesehatan tentang osteoarthritis kepada lansia dengan menggunakan leafleat sebagai media penyuluhan, pemberian pre test dan post test berupa pertanyaan kepada lansia yang guna mengukur keefektifan dari penyuluhan yang diberikan edukasi. Hasil : Penyuluhan berjalan dengan lancar dan dalam hasil pengevaluasian terdapat peningkatan pengetahuan lansia dari 20% hingga 100% setelah diberikan edukasi. Kegiatan penyuluhan yang sudah dilaksanakan di Posyandu Lansia “KRESNA”, RW 11-Bedali Indah, Ds. Bedali, Lawang, Malang dapat meningkatkan pengetahuan dan wawasan lansia mengenai osteoarthritis serta bagaimana cara pencegahan dan penanganan osteoarthritis secara mandiri dengan melakukan latihan aktif dan latihan aktif resisted.

PT Kereta Api Indonesia provides services to prospective passengers in the provision of services related to the only railway services in Indonesia. In this study aims to determine the extent of the quality of service that has been given by Klaten Station to train passengers. This research was carried out on trainers. The study was conducted by distributing 25 questionnaires to train passengers at Klaten Station. Then tested the validity and reliability, to determine the suitability of the distributed questionnaire, then measured the level of importance with Service Performance, then carried out the calculation of the Customer Satisfaction Index to determine the level of passenger satisfaction, then make a chart Importance Performance Analysis to determine the level of importance and customer satisfaction. The calculation results from Service Performance obtained the value of the suitability level of 44.45% -77.45%, the value of the Customer Satisfaction Index of 61.60% which is included in the Very Poor's criteria or needs to be improved, the Importance Performance Analysis calculation has the highest priority quality attributes namely the attributes number 6, 7, 12, 20, and 21. With the proposed improvements using the Theory Resheniya Izobreatatelskikh Zadatch, that is, increase the number of seats for prospective passengers and introductory. Adding supporting facilities that do not yet exist in the Klaten Station environment, PT KAI will educate Klaten Station officers to be more disciplined and prioritize the best service to customers. Keywords: Servqual, Customer Satisfaction, Performance, Importance

One function of drilling mud is designed to reduce fluid loss in formation. A fluid loss control agent is an additive added to the drilling mud formulation to reduce fluid loss. Various polymers have been used as additives to control fluid loss. Starch is a type of natural polymer. The use of starch can reduce fluid loss. Making cassava starch is washed with water and mashed and then filtered. The filtered water is deposited for 6 hours, after that it is dried in the sun to dry and do a sieve analysis with a size of 200 mesh. Then corn starch is mixed with mud with a composition of 2.5 gram, 4.5 gram, 6.5 gram, 8.5 gram and 10 grams to determine the filtrate volumeand the thickness of the mud cake. Testing of filtration loss and mud cake is done by using an LPLT (Low Pressure Low Temperature) by placing a measuring cup to accommodate the volume of filtrate that exits for 30 minutes, and thick mud cake on the filter paper that has been installed on the LPLT device. In testing mud rheology such as viscosity using a Marsh Funnel, while the yield point, plastic viscosity and gel strength using the Fann VG Meter. The results showed that the filtration loss obtained was 6.7 – 4.8 ml and the mud cake thickness was 1.55 - 1.35 mm, viskositas 22,4 – 28,8 second, plastic viscosity 5 – 10 cp, yield point 13 – 17 lb/100 ft², dan gel strength 0,2 – 0,5 lb/100 ft². Then addition of starch mass to the mud can reduce filtration loss, mud cake thinckness, and vice versa with the addition of a larger starch mass it will increase the rheology value of the mud (viscosity, yield point, plastic viscosity, and gel strength).