We prove that, for z ∈ {1/2, 2/3, 3/4, 4/5}, at least one of the two numbers ∞ ∑ l=1 zl l2 + log(1 − z) log z and ∞ ∑ l=1 zl l3 + 1 2 log(1 − z) log2 z is irrational. Mathematics Subject Classification (2000) 11J72 · 11G55 · 33C20 · 33C60 The irrationality result that we prove here, involves the values of the functions f j (z) = Li j (z)− Li1(z) · log j−1 z ( j − 1)! , j = 2, 3, . . . . Kh. Hes...

INTRODUCTION AND OBJECTIVES In view of the complications of Attention-Deficit Hyperactivity Disorder (ADHD) and significance of its treatment, the present study was aimed to investigate the prevalence of ADHD among elementary school students of Shahrekord and to assess the obstacles preventing patients from accessing mental health services. MATERIALS AND METHODS In this cross-sectional study,...

BACKGROUND Patients with β-thalassemia major (TM) develop iron overload through increased iron absorption and transfusional therapy and it's the most important complication of TM. Thalassemia is common in coastal regions and lands with low altitudes. The aim of this study is to determine the effect of high and low altitude on serum ferritin and treatment requirement in two groups of β-thalassem...

DEAR EDITOR, We read with great interest, the published article entitled “relationship of serum magnesium and Vitamin D levels in a nationally-representative sample of Iranian adolescents; the CASPIAN-III study” by Kelishadi et al. They aimed, to assess the association of serum magnesium and Vitamin D (25(OH) D) levels in 330 students, aged range from 10 to 18 years. At this study, they found t...

BACKGROUND Traditional statistical models often are based on certain presuppositions and limitations that may not presence in actual data and lead to turbulence in estimation or prediction. In these situations, artificial neural networks (ANNs) could be suitable alternative rather than classical statistical methods. STUDY DESIGN  A prospective cohort study. METHODS The study was conducted i...

BACKGROUND Urinary Tract Infections (UTI), and their complications, cause serious health problems, which affect millions of people every year. Infections of the urinary tract are the second most common type of infection in the body and approximately 20% of women are especially prone to UTIs for reasons not yet well understood. Urinary Tract Infections in men are not as common as in women yet ca...

There are many hypothesis to explain the relationships between some factors in an earlier time and diseases in later time like salt hypothesis. The effects of early life conditions and diseases in later life have been studied in several studies. Little experience exists on the possible impact of early life circumstances on trends in mortality from atherosclerotic cardiovascular diseases within ...

Rotaviruses have been confirmed as causative agents of nosocomial gastroenteritis in children, but limited data exist concerning the epidemiology of nosocomial rotavirus gastroenteroentritis in Iran. The aim of this study was to determine the prevalence and molecular characteristics of rotavirus in children less than five years old with nosocomial diarrhea in Shahrekord (southwest of Iran).This...