the functional response of aphidius ervi to different sitobion avenae densities on two wheat cultivars (sardary and alvand) was examined in laboratory conditions. experiments were carried out in test tubes on an f2 lab generation without wheat clusters and also on f2 and f5 generations in pots using wheat clusters. in the tubes, female wasps were exposed to aphid densities of 2, 4, 7, 14, 28, 3...

regulations of use of social networks, as one of the key components in these networks, serve an important role in controlling the flow of traffic. the study of the harmonization of these terms and regulations can be a significant step to avoid congestion and (users’) rejection in the network. harmonization of traffic control regulations (tcr) among social networks is one of the best solutions...

introduction: exposure to 3, 4- methylenedioxymethamphetamine (mdma) could lead to serotonergic system toxicity in the brain. this system is responsible for learning and memory functions. studies show that mdma causes memory impairment dose-dependently and acutely. the present study was designed to evaluate the chronic and acute effects of mdmd on spatial memory and acquisition of passive avoid...

SUMMARY In this paper, we address latency issue in Xen-ARM virtual machines. Despite the advantages of virtualization in mobile systems, the current Xen-ARM is difficult to apply to mobile devices because it has unpredictable I/O latency. This paper analyzes the latency of incoming packet handling in Xen-ARM, and presents how virtualization affects the latency in detail. To make the latency pre...

Introduction: Today Nano-medicine tries to produce new drugs to reduce the dosage and side effects of their conventional forms. According to the interaction between zinc and opioidergic system activity, this study has investigated the effect of new kind of zinc supplement, nano zinc oxide (nZnO), in compared to its conventional form (cZnO), in presence and absence of opioidergic system activity...

Introduction: The role of ovarian hormones and nitric oxide (NO) in learning and memory and their interaction has been widely investigated. The present study carried out to evaluate different effect of L-NAME on spatial learning and memory of ovariectomized (OVX) and sham operated rats. Methods: 32 rats were divided into 4 groups: 1) Sham 2) OVX 3) Sham-LN and 4) OVX-LN. The animals of groups 3...

Enabling one way in set associative cache during operation is proposed in literature. However, this architecture degrades the average memory access time. This paper proposes an algorithm to map to certain way in set associative cache improving the performance. The address is mapped to certain way by certain transformations involving XOR'ing and shifting and bit selection. The line is accessed o...

For any time bound f , let H(f) denote the hierarchy conjecture which means that the restriction of the numbers of work tapes of deterministic Turing machines to b ∈ N generates an infinite hierarchy of proper subclasses DTIMEb(f) ⊂ DTIME(f). We show that H(f) implies separations of deterministic from nondeterministic time classes. H(f) follows from the gap property, G(f), which says that there...

background: previous studies on the relationship between sleep patterns and obesity in the elderly are limited and have conflicting results. moreover, few studies have measured sleep patterns objectively. in this study, we investigated objective sleep patterns and their relationship with obesity in the elderly in tehran, iran. methods: in this cross-sectional study, 88 elderly (≥60 years old) w...