The classical economic production quantity (EPQ) model is a well-known and commonly used inventory control technique. Common assumptions in this model are that all units produced are of perfect quality and shortage is not allowed, since in practice shortage, non-conforming product or scrap items are possible, these assumptions will underestimate the actual required quantity. The objective of th...

Objective: To explore the effect of cluster nursing mode combined with blood pressure regulation on surgical tolerance patients esophageal cancer and hypertension. Methods: The clinical data 86 hypertension treated in our hospital (February 2016–February 2017) were retrospectively analyzed. randomly split into research group reference group, 43 cases each group. received routine nursing, while ...

in the fundamental production inventory model, in order to solve the economic production quantity (epq) we always fix both the demand quantity and the production quantity per day. but, in the real situation, both of them probably will have little disturbances every day. therefore, we should fuzzify both of them to solve the economic production quantity (q*) per cycle. using α-cut for defuzzific...

it is possible that society and media attention to national athletes increase their narcissism. based on this possibility, this study which was descriptive and field aimed at comparing narcissism between elite and non-elite athlete students and non-athlete students. the population consisted of students of physical education and sport sciences faculties of tehran universities. 105 athlete studen...

Objectives. Deep brain stimulation of the subthalamic nucleus (STN-DBS) is a recognized therapy that improves motor symptoms in advanced Parkinson's disease (PD). However, little is known about its impact on personality. To address this topic, we have assessed personality traits before and after STN-DBS in PD patients. Methods. Forty patients with advanced PD were assessed with the Temperament ...

The relationship between the SSS and EPQ personality dimensions and reinforcement sensitivity was examined in 140 undergraduates using a non-reversal shift concept formation task. Differences in reinforcement sensitivity related to sensation seeking (SS) were not found, although this trait and the EPQ scales were correlated with the Reward and Punishment Expectancy scales from a newly developed...

The classical economic production quantity (EPQ) model assumes that items produced are of perfect quality and the production rate is constant. However, production quality depends on the condition of the process. Due to process deterioration or other factors, the production process may shift and produce imperfect quality items. These imperfect quality items sometimes can be reworked and repaired...

OBJECTIVE This study aimed to develop and validate a questionnaire to measure waiting anxiety. METHODS This was a cross-sectional study. Extensive review of literature and expert opinions were used to develop and validate the waiting anxiety questionnaire. A sample of 321 participants was recruited through random cluster sampling (n= 190 Iranian men and n= 131 women). The participants filled ...

People meeting diagnostic criteria for anxiety or depressive disorders tend to score high on the personality scale of neuroticism. Studying this dimension of personality can therefore give insights into the etiology of important psychiatric disorders. Neuroticism can be assessed easily via self-report questionnaires in large population samples. We have examined the genetic and phenotypic stabil...

The purpose of the study was to examine whether poor working conditions influenced drivers' psychological health, and to identify drivers' personality characteristics. The subjects were 208 bus drivers working in the European sector in Istanbul. Their personality characteristics, psychological symptoms and anxiety levels were investigated using the Eysenck Personality Questionnaire (EPQ), the S...