bahram amini

This study was conducted for the analysis of hijacked journal and presenting new features to apply them and reduce internet frauds.
To reach this goal, First according to studies done on the websites the of authentic and hijacked journals, the features of this kind of attacks are extracted and then a training dataset is created. The number of collected data records is 104 were collected and analyzed using WEKA data mining tools. The results showed that the applied method has an error rate of 1 percent.
Findings: The collected data of this research was analyzed by Weka data mining software. The algorithms used in this survey were developed by the Decision Tree Algorithm. An algorithm with a lower error rate is selected. The results showed that the applied method has an error rate of 9 percent.
The previous studies showed an increase in the number of fake publishers and hijacked journals. This article is dealt with finding a way to identify these type of journals. The results obtained from the data collected using a decision tree and the analysis thereof was shown.

Salmonella typhimurium is one of the most important species of Salmonella that is intracellular parasite and attacks host mucus membrane. These bacteria can cause gastroenteritis, and their main transmission route is water, poultry, meat, egg, and raw food. The aim of this study was to detect three virulence genes associated with S. typhimurium named invA, STM4497, and fliC183 genes by Multiplex PCR method.
183 samples of poultry were collected from food products in Zanjan (Iran) and cultured in BPW (Buffered Peptone Water) for 18 hr and at 37°C, and in RVS broth (Rappaport Vassiliadis Soya) for 6 hr at 41.5°C. After amplification of genomic DNA by Multiplex PCR method, occurrence of pathogen contamination was checked and compared with standard strain.
From the total of 183 collected samples, 52(28.4%) samples were positive for S. typhimurium. The frequency of STM4497, fliC183, and invA genes were 49 (27%), 3 (2%), and 53 (29%), respectively.
Simultaneous detection of invA, STM4497, and fliC183 genes were recognized as a key for detection of S. typhimurium by Multiplex PCR method.

Trichomonas vaginalis infection is a common sexually transmitted protozoal infection and is associated with several adverse outcomes such as preterm labour، delivery of a low-birth weight infant، and facilitation of sexually transmission of human immunodeficiency virus. In Iran، the prevalence of trichomoniasis has been reported between 2 to 8%. The aim of the study was to investigate the prevalence of this infection among women referred to a laboratory in Zanjan. ­In this Cross-sectional study، 328 women were selected via convenience sampling. Because of vaginal discharge، itching، burning and malodor، they were referred to a laboratory by a gynecologist. After preparing a demographical check list، the vaginal specimens were examined by wet smears for Trichomonas vaginalis، in 2010. To analyze the data، we use chi square and fisher exact test. The clients (54. 43%) ­are 25-­34 years old، homemaker­ (87%)، illiterate or­­ primary school education­ (48%). ­The prevalence of T. Vaginalis infection is­ 6. 4%. there is no significant relationship between T. ­Vaginalis infection and factors like age، education level، marriage age، contraceptive method، occupation، dwelling place and number of labour. In comparison with other studies، the prevalence of Trichomonas vaginalis in Zanjan is moderate. Because of co-existing with other sexually transmitted diseases (STDs)، we suggest conducting further studies about the prevalence of other STDs in Zanjan.

Information integration plays an important role in academic environments since it provides a comprehensive view of education data and enables mangers to analyze and evaluate the effectiveness of education processes. However, the problem in the traditional information integration is the lack of personalization due to weak information resource or unavailability of analysis functionality. In this research the layered service-oriented framework was proposed which augmented recommendation approaches with components of semantic based integration to provide adaptive, flexible, and context based information integration and analysis for decision makers in Higher Education Institutes. This framework encompassed the integration of structured information from internal data sources as well as unstructured data from the Web. The main objective of this paper was to adapt the content as well as appropriate services for personalized information analysis. In addition, the framework could enable administrators to analyze instances of education information and receive recommendation of new information sources as well as web services based on the current education status. Service orientation paradigm provides adaptive, flexible, and scalable means of communication for service interoperability and interaction among the framework components. Semantic web technologies help to overcome the heterogeneity among information sources and facilitate on-demand web service discovery and invocation for efficient information analysis.

Brucellosis is a major health problem worldwide, especially in developing countries. Following infection with brucella, antibodies appear in the serum and its titer detection can help us to evaluate the course and epidemic status of the infection. The aim of this study was to determine the seroprevalence of anti-brucella antibody titer in rural population of Abhar. Patients and In this descriptive study, 300 individuals were randomly selected for whom blood samples were screened to determine anti-brucella antibody titter, using standard tube agglutination (STA) and Coombs tests. The seroprevalence of anti-brucella antibody titer was 1.25% for STA and 4.58% for Coombs test. Totally, 14 (5.83%) individuals had titers of 1/80 or higher in STA and/or Coombs tests. Our results emphasizes on the necessity of conducting comprehensive and scheduled program of seroprevalence survey, particularly in rural area, aimed at reducing brucella prevalence as well as to guide planning and resource allocation of decision makers for future interventions.

Sub inhibitory concentrations (sub-MICs) of antibiotics, although unable to kill bacteria, can modify their physiologic and biochemical integrity and may to some extent interfere with some bacterial functions. In this study the effect of penicillin, vancomycin, and ceftazidime were evaluated on two pathogenic and commonly encountered bacterial species in clinical practice. The test bacterial strains included Staphylococcus aureus ATCC 29213 and Pseudomonas aeruginosa ATCC 2783. In this study, coagulase and DNase activity, mannitol fermentation and morphologic change of S. aureus and oxidase activity, pigment production and morphologic change of P. aeruginosa were evaluated. Except for some changes in the morphology being apparent as enlarged and undivided cocci in 1/2 to 1/8 sub MIC of all above-mentioned antibiotics, S. aureus showed no change in any of its properties, like coagulase and DNase production and mannitol fermentation. In P.aeuginosa, except for some morphologic changes, i.e. elongation and filamentation, in 1/2 to 1/8 dilution of ceftazidime, no further changes were observed. Exposure of bacteria to sub MICs of antibiotic can produce some detectable morphologic changes without any alteration in other biochemical properties.

The extensive pollution of natural ecosystems has occurred by organophosphorus pesticides, being used for improvement of crop production in agriculture. Biodegradation is interested in application of multifunctional bacteria containing genetical elements which specially degrade organophosphorus compounds. In this paper the detection of two bacteria species, Pseudomonas and Flavobacterium, which harbouring organophosphorus degrading elements from environmental samples is reported.Several resistant strains isolated from different cultures that previously were cultivated with related sources such as soils and waters. These bacteria had been isolated from organophosphorus enriched mineral solutions, and following inoculation, visible colonies were observed on mineral and MacConkey’s agar medium. The resistant bacteria were identified by conventional procedures and monitored with certain properties like stability, tolerance, resistance to organophosphorus compounds and different antibiotics. The genetical elements for organophosphate degradation were confirmed by adding acridine orange to culture of resistant strains which could delete these capabilities. Fifty strains were optimally grown in presence of three classes of organophophoruses like guthion, dimethoate and methyl parathion with concentrations of 2.5, 4, and 8 gl-1 respectively. The gram-negative bacteria were identified using conventional diagnostic procedures, asPseudomonas and Flavobacterium species. These strains were harbouring organophosphorus degrading elements which were deleted by acridine orange as mutagen. Also, most of these bacteria were resistant to different antibiotics that used as biomarkers in discrimination of sensitive strains to organophosphoruses.The genetical elements such as resistance to organophosphoruses and antibiotics were transferred to the sensitive bacteria by matting technique and cured as multifunctional organisms which had high capability for various organophosphoruses. The multi-degrading strains might be suggested as useful tools for detoxification of harmful organophosphoruses in agriculture.