Background: Black henbane with the scientific name of Hyoscyamus niger which has a wide geographic distribution, is considered as one the most important species for tropane alkaloids extraction. Objective: In this research, morphological and tropane alkaloids variations were assessed within different population of H. niger in their natural habitats. Methods: Totally, 56 individuals were colle...

Introduction: Fever and convulsions are one of the most common forms cause hospitalization in children under 5 years old. The occurrence fever a child causes parents to worry about child’s death, this mental pressure can harm parent’s health. Objectives: This study was conducted investigate effect education reducing intensity anxiety with seizures due Gorgan. Patients Methods: In quasi-experime...

BACKGROUND Waste produced in dental clinics has been the topic of investigations for many years. These waste materials have important health impacts and are hazardous to humans and the environment. OBJECTIVE To investigating solid waste production and its management in dental clinics in Gorgan, northern Iran. METHODS In this cross-sectional study, 45 of 143 public dental practices and 5 of ...

BACKGROUND The aims of this study was to analysis the current situation of malaria and to find the distribution of anopheline mosquitoes, as probable vectors of the disease, in Qom Province, central Iran. METHODS This study was carried out in two parts. First stage was data collection about malaria cases using recorded documents of patients in the Province health center, during 2001-2008. The...

BACKGROUND Hepatitis D virus (HDV) is a defective RNA virus that depends on the hepatitis B surface antigen (HBsAg) of hepatitis B virus for its replication, developing exclusively in patients with acute or chronic hepatitis B. There are little data regarding the routes of HDV transmission in Iran. The risk factors for HDV infection in Iran are blood transfusion, surgery, family history, Hejama...

BACKGROUND Hepatitis B is the most common chronic viral infection in humans and the most common cause of death among viral hepatitis. As 70% to 80% of chronic hepatitis cases are caused by HBV in Iran, this virus alone is considered the most important cause of liver diseases and the major cause of mortality arising from viral hepatitis cases in Iran. OBJECTIVES We planned this study to determ...

BACKGROUND Recent studies have demonstrated controversial results and somewhat increased frequency of multiple sclerosis (MS). We reevaluated the files of MS patients from Qom Province of Iran in order to investigate the epidemiology of the disease. METHODS Demographic and clinical records of 592 MS patients were reviewed, which included; age, sex, date of birth, marital and occupation status...

Metal-organic framework-177 (MOF-177) is one of the most porous materials whose structure is composed of octahedral Zn4O(-COO)6 and triangular 1,3,5-benzenetribenzoate (BTB) units to make a three-dimensional extended network based on the qom topology. This topology violates a long-standing thesis where highly symmetric building units are expected to yield highly symmetric networks. In the case ...