background: in diagnostic radiology there are two reasons for measuring or estimating radiation doses to patients. firstly measurements provide a means for setting and checking standards of good practice as an aid to the optimization of patient protection. secondly estimates of the absorbed dose to tissue and organs in the patients. materials and methods: a total of 2382 patients were studied t...

acute  pancreatitis (ap) is a common clinical  disease  caused mainly by gallstone impacting  the distal common bile-pancreatic duct and alcohol abuse, but other potential causes as  endoscopic  retrograde cholangiopancreatography  (ercp),  intra duct papillary mucinous tumor and hypercalcemia are claimed .  the incidence of ap has been increasing in recent years . accordingly, ap is a multifac...

Many students have difficulty understanding the concept of dynamic programming, a problem solving approach appropriate to use when a problem can be broken down into overlapping sub-problems. In addition, computer science majors seldom take a course in which a spreadsheet application is taught or used, although spreadsheet applications can be a great tool in visualizing and solving problems. Thi...

Current forecasting software can be problematic in its level of integration with Microsoft Excel forecasting models. Standalone forecasting software operates in a batch mode with Excel and is impossible to run interactively without custom programming. Excel forecasting add-ins are designed to work within Excel and can be automated to use with forecasting models, but lack support for damped tren...

Data clustering refers to the method of grouping data into different groups depending on their characteristics. This grouping brings an order in the data and hence further processing on this data is made easier. This paper explains the clustering process using the simplest of clustering algorithms the K-Means. The novelty of the paper comes from the fact that it shows a way to perform clusterin...

Introduction: Ureteropelvic junction obstruction (UPJO) is associated with inadequate urine drainage from renal pelvis into ureter. UPJO results from incomplete recanalization of proximal ureter during fetal period which finally leads to hydrostatic distention of renal pelvis and calyces. Diagnosis is based on clinical symptoms, ultrasound, and diuretic isotopic renogram. Various surgical metho...

Females are generally better than males at recognizing facial emotions. However, it is not entirely clear whether and in what way females may also excel at non-affective face recognition. Here, we tested males and females on two perceptual face recognition tasks that involved only neutral expressions: detection and identity discrimination. On face detection (Experiment 1), females were signific...

A critical component essential to good research is the accurate and efficient collection and preparation of data for analysis. Most medical researchers have little or no training in data management, often causing not only excessive time spent cleaning data but also a risk that the data set contains collection or recording errors. The implementation of simple guidelines based on techniques used ...