1 School of Computer Science and Technology, Nanjing Normal University, Nanjing, Jiangsu 210023, China 2Department of Mathematics, Anand International College of Engineering, Agra Road, Near Bassi, Jaipur, Rajasthan 303012, India 3 Ambedkar Institute of Advanced Communication Technologies and Research, Government of NCT of Delhi, Geeta Colony, Delhi 110031, India 4Department of Electrical Engin...

BACKGROUND Cutaneous leishmaniasis (CL) is a widespread tropical infection which has a high incidence rate in Iran. The aim of this study was to determine some epidemiological aspects of disease in Northern Khorasan Province, Iran. METHODS From 2005 to 2008, data concerning 1453 patients with CL were collected and analyzed from the different districts of health service registry of the provinc...

BACKGROUND Intestinal parasitic infection is one of the major public health problems in developing countries. Children are more vulnerable to these infections. In addition, the prevalence of infection is different among various communities; hence, there is a need for the periodical prevalence evaluation. This study was performed to define the prevalence of intestinal parasitic infection among t...

BACKGROUND Stroke in young adults causes morbidity in this socioeconomically active age group. The etiologic frequency of ischemic stroke in young adults differs around the world. METHODS The study population consisted of 314,000 'young adult' residents in Southern Khorasan province in Iran. All patients with stroke are routinely admitted to the Valie Asr tertiary care hospital. Data on patie...

BACKGROUND Because of the low prevalence of Human T Lymphotropic Virus type I (HTLV-I) in comparison with Khorasan Province, considering HTLV-I as an etiology of spastic paraparesia, it may be neglected in evaluation of spastic paraparesis in the other regions of Iran. Some reports of spastic paraparetic patients due to HTLV-I infection in West Azarbaijan, caused us to reconsider the importance...

The prevalence of Theileria spp. infection was studied in sheep in the South Khorasan province in Iran from 2003 to 2004. A total of 840 sheep from 34 flocks were clinically examined and investigated for the presence of Theileria spp. in the appropriate blood smears and any tick species on the body of the animals. In this study, 11.9% of sheep were infected with Theileria spp., with a parasitem...

BACKGROUND During the last decades, the number of dentistry units increased significantly across the country. The aim of this study was to assess the efficiency of dental units of Iran provinces regarding dental health inputs and outputs using Data Envelopment Analysis approach. METHODS In this applied descriptive-analytical study, the study population included all of Iran 31 provinces. The o...

Background This cross-sectional investigation aimed to evaluate the prevalence of IgM and IgG anti-Toxoplasma gondii antibodies and the associated risk factors among healthy blood donors in Khorasan Razavi Province, northeast of Iran from Nov 2014 to May 2015. Methods Overall, 491 serum samples from apparently healthy blood donors referred the six biggest blood centers in Razavi Khorasan, Ira...

BACKGROUND Pediculosis (head lice) is considered as one of the most common health problems of the students in primary schools. The purpose of this study was to survey the prevalence rate of the infestation in the schools of Gonabad City (south of Khorasan-e-Razavi Province) to prevent its outbreak by on-time planning. METHODS In this retrospective-descriptive study, data were collected from t...

The equilibrium chemical reactions taken place in a converter reactor of the Khorasan Petrochemical Ammonia plant was studied using the minimization of Gibbs free energy method. In the minimization of the Gibbs free energy function the Davidon– Fletcher–Powell (DFP) optimization procedure using the penalty terms in the well-defined objective function was used. It should be noted that in the DFP...