blastocystis hominis is a protozoan parasite which mainly found in human fecal samples both from symptomatic patients and asymptomatic population in developing countries. in this study we reported a patient referred to gi clinic with abdominal pain, nausea, vomiting, fever for 2 or 3 days and passed watery stools because of blastocystis sp. subtype 2 infection.

Oil production may be accompanied by Sand Production (SP) in the weak sandstone reservoirs. Fluid flow is an important factor in transporting the separated grains and completing the SP mechanism. In this paper, the effect of fluid parameters, fluid flow, and fluid pressure on the SP is investigated by applying the Discrete Element Method (DEM). Parametric studies show that fluid velocity is red...

A review on the Chinese species of Tetraserica Ahrens, 2004, is presented. The lectotype of Tetrasericatonkinensis (Moser, 1908), comb. n. is designated. Twenty-nine new Tetraserica species are described from China and adjacent regions: Tetrasericaanhuaensis sp. n., Tetrasericachangjiangensis sp. n., Tetrasericachangshouensis sp. n., Tetrasericadamaidiensis sp. n., Tetrasericadaqingshanica sp. ...

The parasite fauna of 50 specimens of spiny eel obtained from two lakes, Zarivar (in Kurdistan province) and Parishan (in Fars province) and one river, Heleh (Booshehr province) were examined during the year 2003. A total of nine parasite species were found. Gills of spiny eel were infected with Ichthyophthirius multifiliis , Trichodina pediculus (protozoa) and Mastacembelocleidus heteranchorus...

IBM SP{2 has become a popular MPP for scientiic community. Its programming environment includes several message passing libraries. In this paper, we analyse performance of communication operations in 3 libraries installed on SP{2, namely Parallel Virtual Machine (PVM), Message Passing Library (MPL), and Message Passing Interface (MPI).

Poterrioochromonas sp., isolated from Microcystis cultures in 2002, was described with LM, SEM, TEM. The grazing characteristics of this strain were also observed in laboratory experiments. The results showed that this strain has the representative features of the genus except for the lorica, and the most conspicuous feature of Poterioochromonas sp. was about the chromatophores.

Background：Vibrio splendidusVs is an important aquaculture pathogen that can infect a broad host of marine organisms. In our previous study, an antagonistic bacterium Vibrio sp. V33 that possessed inhibitory effects on the growth and virulence of a pathogenic isolate V.splendidusVs was identified. O...

Surfactant protein A (SP-A) constitutes an important part of the innate immune defense in the lung. In humans there are two functional genes (SP-A1 and SP-A2). The functional importance of having two distinct chain types in human SP-A is undefined. Amino acid substitutions in the primary structure of the protein may have effects on structural stability or on activity. To address this issue, SP-...

Petroleum hydrocarbon contamination is a major global prevalent issue in the petroleum sector. This research focuses on evaluating biodegradation of three Gram-negative bacilli, isolated from cowpea planted soil, contaminated with kerosene. The Gram negative bacilli strains have been characterized and identified, using MicrobactTM ID24E systems for the identification of Enterobacteriaceae and c...