during a survey conducted on syrphidae fauna in guilan province (masuleh & lakan) in august 2006, some species of the genus eristalis latreille were collected and identified, of which e. similis (fallen) is newly reported from iran. the identification was confirmed by heikki hippa, swedish musem of natural history.

pollen grains of five olive cultivars (olea europaea l .) were examined, using scanning electron microscopy (sem) for identification purposes. four measurments, polar axis (p), equatorial diameter (e), p/e ratio and exine patterns were made. forty pollen grains of each cultivar were viewed before finally selecting a representative pollen grain. polar diameter ranged between 22.76 μm for the...

diarrheagenic escherichia coli have developed different strategies for establishment of infection in their host. understanding these pathogenic mechanisms has led to the development of specific diagnostic tools for identification and categorization of e. coli strains into different pathotypes. this review aims to provide an overview of the various categories of diarrheagenic escherichia coli an...

Background: Shiga toxin-producing Escherichia coli (STEC) are group of E. coli causing bloody diarrhea. The goal of this survey was to determine the prevalence of multidrug resistant shiga toxin-producing E. coli in cattle meat and its contact surfaces. Methods: Swab samples (n=120) were randomly collected from meat and contact surface of butchery shops in Sharkia province, Egypt. Prevalence o...

E-Toll transponders are commonplace in the US: they allow vehicles to pay highway tolls electronically; and in many highways, they are actually required. The core of an E-Toll transponder is a battery-powered RFID. When queried by a radio signal from a reader, it responds by transmitting a radio signal at a fixed carrier frequency with its identity encoded. By decoding this radio signal, the re...

Ayu (Plecoglossus altivelis), one kinds of valuable cultured fish species, show almost no morphological difference between male and female until sexual maturity. Here, we report the identification of sex-linked markers for the ayu, based on Amplified Fragment Length Polymorphism (AFLP) generated from cultured fish (15 males and 15 females) by using 63 different primer combinations. Genomic frag...

Analysis of scab samples collected from poultry during outbreaks of fowlpox in Mozambique in 2016 revealed the presence of clade E avipoxviruses. Infected poultry were from flocks that had been vaccinated against fowlpox virus. These findings require urgent reevaluation of the vaccine formula and control strategies in this country.

As for security of RFID network, this paper has proposed a safe, effective and scalable RFID Authentication Protocol (CRFID) with cloud database as server. Firstly, the tree-structure management tag is used to achieve privacy protection, and the time complexity of RFID system in search of cloud database is reduced from O (N) to O (logN); then, the size of each subkey in keys route of the RFID t...

background : cockroaches mechanically spread pathogenic agents, however, little is known about their gut microbiota. identification of midgut microbial community helps targeting novel biological control strategies such as paratransgenesis. here the bacterial microbiota of periplaneta americana midgut, were identified and evaluated for finding proper paratransgenesis candidate. methods : midgut ...