A fever, also known as a high temperature, is not caused by an illness. It's usually a symptom of an underlying condition, most often an infection. In children with fever, accompanying symptoms such as lethargy, fussiness, poor appetite, sore throat, ear pain, vomiting and diarrhea. Some parents think they should not go to the hospital when children get fever, because they will be ridiculed. As a first-aid solution, An Application of expert system (AExS) can help parents to identify fever caused by viral infection. It implements forward chaining as the technique of searching through rule-base system. Some programming code were also written in PHP for making deduction of new fact from rules in the knowledge base. The web based expert system enables user to diagnose the children's disease anytime and anywhere, just by accessing the internet. It is very interesting and has created considerable importance system to diagnose fever caused by viral infection.

Hemodialysis is a procedure for cleaning the blood from the waste products of the body’s metabolism. this is one of modality to treat end stage kidney disease. There are two main classifications of this disease, namely acute kidney failure and chronic kidney failure. Kidney failure occurs when kidney damage is severe enough or lasts a long time so that the disease is generally the final stage of kidney disease. Dialysis is performed on patients with kidney failure, both acute kidney failure and chronic kidney failure. This study is aimed to predict the mortality risk of hemodialysis patients. The Taiwanese hemodialysis center enrolled a total of 665 hemodialysis patients. The prediction is based on Logistic Regression. Compared with K-Nearest Neighbor, linear discriminant, Tree, and ensemble, Logistic Regression performed better. As for related medical variables like parathyroid surgery, urea reduction ratio, etc., they play a much smaller role in mortality risk factors than diabetes and cardiovascular disease.

Abstract-The main goal of parathyroidectomy (PTX) is to