background: breast cancer is the most common cancer in women. prostate‑specifc antigen  (psa) is a marker of prostate gland malignancy, which has been considered in cases with breast cancer in recent years. the goal of this study was to determine total and free psa levels in cases with malignant and benign breast lesions. methods:   in  this case–control study, ninety women with histological pr...

We propose and test several computational methods to automatically determine possible saliency cut-off points in Sketch Engine (Kilgarriff and Tugwell, 2001). Sketch Engine currently displays collocations in descending importance, as well as according to grammatical relations. However, Sketch Engine does not provide suggestions for a cut-off point such that any items above this cut-off point ma...

Background: Hypoglycemia is one of the most common neonatal disorders, associated with severe complications. There has been a great deal of controversy regarding the definition and screening of hypoglycemia. Therefore, in this study, we aimed to determine a cut-off value for blood glucose level in glucometer readings. Methods: This cross-sectional study was conducted on 238 newborns at risk of ...

In ELISAs, sera of individuals infected by Trypanosoma cruzi show absorbance values above a cut-off value. The cut-off is generally computed by means of formulas that need absorbance readings of negative (and sometimes positive) controls, which are included in the titer plates amongst the unknown samples. When no controls are available, other techniques should be employed such as change-point a...

Abstract A major challenge in simulating chemical reaction processes is integrating the stiff systems of Ordinary Differential Equations (ODEs) describing reactions due to stiffness. Thus, it would be interest search systematically for solvers that are close optimal such problems. This paper presents an implicit 3-Point Block Backward Differentiation Formula with one off-step point (3POBBDF) so...

High residual platelet reactivity (PR) in patients on clopidogrel therapy is associated with thrombotic events after percutaneous coronary intervention (PCI) with drug-eluting stents. It is well documented that determining an optimal PR cut-off point helps to better predict major adverse cardiovascular events (MACE). In addition, determining the optimal PR cut-off point helps to sufficiently su...

introduction: compulsive internet use scale (cius) is a newest and prestigious questionnaire in the diagnosis of internet addiction .the goals of this study was to investigate the reliability and validity (psychometric properties) of persian version of cius in internet users of isfahan's universities. methods: in this descriptive and cross- sectional research  400 isfahan university students we...

background: progressions in science and technology have generated several methods for delaying preterm delivery and abortion; therefore, discovering an easy, non-invasive, practical, and non-expensive predictive factor can help us to perform preventive methods in healthy pregnant women, without any risk factors. objective: to indicate an appropriate index for predicting abortion in early pregna...

objective: early discharge of newborns is essential because of social, economic an medical reasons in our area, but it increases readmission rates especially for hyperbilirubinemia. hence, predicting the high risk neonates for subsequent hyperbilirubinemia is required. this study was designed to investigate which level of total serum bilirubin (tsb) at the first day could be used to predict hyp...