Games are one of the entertainments that are often and in demand by many children, especially those that can be used in electronic media. The educational game media developed in this research is "Petualangan Alja" which includes algebraic material. Addie model is used in research research and development (R&D) and there are 5 stages of development, namely: analysis, design, development, implementation, and evaluation. This educational game has confirmed its validity as a learning medium by materials and media experts with 95% and 95% results obtained. 5 students of grade 7 of SMP Negeri 1 Getasan and SMP Negeri 6 Salatiga were selected as research subjects. The results showed that the percentage of practicality obtained was 94.7% with a very good category. The significance result of the Paired T-Test test was 0.039 which was less than 0.05 with the learner's learning outcomes increasing significantly from the higher posttest average score of the pretest score. The conclusion of this study is that the educational game "Petualangan Alja" is valid, practical, and effective.

Community service activities in the field of internal audit are carried out in the Satya Wacana Christian High School to assess the existing 3E (efficient, effective, and economical). The methods in this internal audit activity include identifying risks, audit programs and procedures, interviewing, observing, confirming, distributing questionnaires, and providing recommendations based on audit findings. The results if this activity are in the form of recommendations for prevention, improvement of the library operational activitiesbased of the 3E principle.

PGK merupakan suatu proses patofisiologi dengan etiologi beragam, mengakibatkan penurunan fungsi ginjal yang progresif dan umumnya berakhir dengan gagal ginjal. Selanjutnya gagal ginjal adalah suatu keadaan klinis yang ditandai dengan penurunan fungsi ginjal yang reversible, pada suatu derajat yang memerlukan terapi pengganti ginjal yang tetap, berupa dialysis atau transplantasi ginjal. Uremia adalah suatu sindroma klinik dan laboratorik yang terjadi pada semua organ, akibat penurunan fungsi ginjal pada penyakit ginjal kronik (Suwitra, 2009).
 
Gejala sindroma uremia dini ialah gangguan fungsi gastrointestinal. Penderita merasa  mual-mual,  muntah-muntah  dan  tidak  nafsu  makan.  Gejala-gejala  tersebut diduga akibat timbunan metabolit, antara lain: metilguanidin, asam guanidinosuksinat, asam parahidroksi-fenilasetat, fenol, indol, asam-asam aromatik, dan senyawa-senyawa amin. Metabolit-metabolit tersebut berasal dari degradasi protein (Syaifuddin, 2006).
 
Gejala gastrointestinal  yang lain ialah kerusakan epitel dan perdarahan, mulut kering, lidah terasa pahit, perdarahan gusi, hematemesis, melena. Kerusakan epitel dan gangguan fungsi epitel, diduga karena iritasi oleh timbunan metabolit dan gangguan metabolisme sel-sel- epitel. Gangguaan juga terjadi pada epitel kulit, garukan karena gatal meninggalkan ekskoriasi ditungkai, lengan dan di badan. Rasa gatal diduga akibat timbunan atau endapan kalsium dan ureum di dermis. Gejala kardiovaskuler dapat menyertai PGK, hipertensi, jantung hipertensif, payah jantung kongesif, perikarditis uremik, hemoperikardium, tamponade jantung (Syaifuddin, 2006).
 
 

With the development of communication technology today, the smartphone is one of the choices on communication tools that many users have now. Even now, smartphones have various types and prices that reach user needs, so that with limited funds, they can adjust it to their needs. By creating a smartphone selection recommendation systems, it can make it easier for people in determining smartphone purchases based on available funds, with features, brands, and advantages that are already sophisticated today. The recommendation system is made using a combined method called Modified Simple Additive Weighting (M-SAW), where Simple Additive Weighting (SAW) is used for weighting and normalization process, meanwhile Weighted Product (WP) is used for fixing the weight of criteria, determinating vector S, and ranking process. The result for best recommendation using this method is Oppo F5 Youth with score 0,444. With this recommendation results, makes the user make their decision for smartphone recommendation using this system.