The purpose of this study was to investigate the impact of cyberspace on the lifestyle of young female students. The statistical population of the study was 90 students of Shahid Modarres Girls School of Chenaran city. Considering the number of the population, the complete enumeration method was used to distribute the questionnaire. In general, two major methods of library and field methods hav...

abstract the pythium spp. are known as the principle agents of seedling blight, damping-off and root rot of cucurbits. this study was performed for determination of pythium species involved in this diseases as well study their pathogenecity on different cucurbits. the numerous samples were taken at cultivation seasons 2006- 2007 from the fields of cucumber, tomato, egg plant, muskmelon, cucurbi...

abstract beet yellows virus (byv), the type member of the genus closterovirus and one of the most economically important yellowing viruses, causes serious losses in sugarbeet. in order to study infection and distribution of beet yellows virus during summer 2007, about 530 samples were collected from beet’s fields in razavi khorasan province (fariman, torbate jam, ghoochan, chenaran, torbate hey...

abstract during a survey for detection of pvs in potato fields in northern khorasan province, some tubers from the plants which have been already marked and showing mosaic, rugosity, undulation on leaf margins, little leaf and slightly vein deepening, were collected in bodjunrd region, also, some tubers from potato fields of mashhad, chenaran, ghoochan, faruj and shirvan regions were randomly c...

carnation etched ring virus (cerv) is a member of the caulimovirus genus of the caulimoviridae. the virus is the second most important virus of carnation around the world and the only dna virus among infecting viruses of carnation. the virus infected plants were collected from greenhouse in chenaran and two fragments of ~1500 bp and ~1000 bp respectively for coat protein and movement protein we...

in a faunistic survey conducted on auchenorrhyncha in sugar beet fields of mashhad and chenaran regions during 2008-2010, a total of 2741specimens belonging to 5 families were collected. as a result, 10 species were added to the fauna of the study area including: family cicadellidae: rhytidodus decimusquartus (schrank 1776), viridicerus malicola (dubovxdy 1966); handianus procerus (herrich-scha...

background: alveolar echinococcosis (ae) is a chronic, rare and sometimes lethal parasitic infection in humans, caused by the larval stage of the fox tapeworm echinococcus multilocularis. this study aimed to investigate the clinical aspects and treatment outcomes of patients with alveolar hydatid disease. methods: the medical records of patients with alveolar echinococcosis admitted between 199...

abstract in order to study the effect of density and time of nitrogen application on morphological, phenological characteristics, yield and yield components of black cumin (nigella sativa l) a field experiment was conducted at chenaran in khorasan razavi province in 2005 growing season. three nitrogen fertilizer (urea) application times (1- control 2- at 4-6 leaves stage 3-preblooming 4-complet...

abstract during the winter and spring of 2007 and 2008, 450 samples (leaves of carnation plants) showing symptoms of yellowing, mottling, leaf malformation, and stunting were collected from greenhouses in mashhad and chenaran regions. the samples were tested by das-elisa for the presence of carmv. total rna was extracted by rnxtm (-plus) solution from positive infected samples confirmed in das-...