Introduction: University students, as the future manpower resources, are of high importance for communities. One of the aspects to focus on is their mental health. The present study was conducted to determine the relationship between alexithymia, irrational beliefs, positive and negative emotions with mental disorders in students. Methods: There were 400 students, selected randomly through stra...

in this paper, construction rules of the root locus of a positive feedback system whose loop transfer function is not strictly proper have been investigated. the root locus method is being used since 1950. it is demonstrated that some of the steps in this technique are not general and for a positive feedback system whose loop transfer function is not strictly proper are not valid. to overcome t...

due to the changes which may occur in their parameters, systems are usually demonstrated by some subsystems for different conditions. this paper employs modified petri nets (mpn) to model theses subsystems and makes it simple to analyze them. in this method, first, the continuous transfer function is converted to a discrete transfer function and then, by mpn, system is modeled and analyzed. all...

One of the most important problems encountered by healthcare system is the increasing prevalence of antimicrobial resistance. It may result from irrational or inappropriate use of antibiotics. The present study was undertaken to screen rational use of antimicrobials in outpatient department (OPD). Prescriptions from medicine, surgery, obstetrics and gynecology (OBG) and pediatrics OPDs were col...

OBJECTIVES The aim of this study was to investigate possible predictors of irrational parenthood cognitions among infertile women seeking treatment. METHODS In a cross-sectional study, 300 women who visited an Infertility Center in Iran during 2010 were studied. A pre-validated inventory was used to assess irrational parenthood cognitions. Potential predictors of the total irrational parentho...

irrational beliefs are messages about life we send to ourselves that keep us from growing emotionally. they are unfounded attitudes, opinions, and values we hold to that are out of synchrony with the way the world really is. the aim of this study is investigation the relationship between irrational beliefs with anxiety in adolescent’s girls. this study is descriptive and correlational. the stud...