Showing 5 results for Minab
Maedeh Mollaei, Hussein Sadeghi-Namaghi, Hossein Lotfalizadeh, Farzad Minab,
Volume 0, Issue 0 (9-2025)
Abstract
During a laboratory biological study of a midge, Feltiella acarisuga (Vallot, 1827) (Diptera: Cecidomyiidae), acarivorous on two-spotted spider mites, some ceraphronid specimens were reared from the midge cocoons. A detailed morphological study and comparison with previously known species revealed that the ceraphronid is a new species of Aphanogmus Thomson, 1858 (Hymenoptera: Ceraphronidae). The new species is described as A. feltiellophagus Lotfalizadeh, sp. nov. and compared with closely related species. An identification key for all Aphanogmus species associated with predatory cecidomyiids is provided. As a parasitoid of the pupal stage of Feltiella acarisuga, the potential negative impact of A. feltiellophagus on the biological control of tetranychid mites is discussed.
Farzad Minab, Ehsan Rakhshani, Elijah J. Talamas, Mostafa Ghafouri Moghaddam,
Volume 9, Issue 2 (6-2023)
Abstract
Iranian species of the superfamily Platygastroidea (Hymenoptera) belonging to two families Platygastridae, (12 genera, 35 species) and Scelionidae (13 genera, 46 species), are reviewed. The recorded platygastroid species from Iran represent a very small assemblage of the world fauna, and certainly not the complete list from Iran. Except for a few recently described species, the others are found in many other countries as well. The known distribution for 27 species (77.1%) of Platygastridae of Iran is restricted to the Palaearctic region, while a smaller percentage was found in the Afrotropical (14.3%) and Nearctic (8.6%) regions. The distributions of 77.8% of Iranian scelionids are strictly Palaearctic, while the remaining scelionids were found also in the Nearctic (11.1%), Oriental (11.1%), Afrotropical (8.9%), Australasian (2.2%) and Neotropic regions (2.2%). Considering the sporadic treatment of platygastroids in Iran, it is evident that major parts of the country, including the eastern third, remain unexplored.
Volume 16, Issue 4 (winter 2016 2016)
Abstract
Postulating perfect rationality and full information paves the way for neoclassic economics to explain the process of decision making through equalizing marginal units of variables based on optimizing the behavior of economic agents. This axiomatic approach results in eliminating any uncertainty from the analyses. This problem causes the marginal economics to neglect the issue of institutions. Moralities as a part of social institutions consist of specific rules and regulations, which have large effects on transactions and choices of economic agents, and determine the level of efficiency. This paper tries to develop a theoretical model for explaining the behavior of the economic agents of an Islamic society, which consists of specific and unique institutions. This research hypothesizes that morals in light of belief in the Hereafter eliminate the uncertainty of lack of experiencing the Hereafter and make optimization of economic agents possible. Two issues occur in a society in which the belief in the life after death is mixed with moralities. This paper tackles these two issues. The first one is the inter-world discount rate and the second is the marginal discounted cost (benefit) to the accumulated cost (benefit) ratio which is used as an index by economic agents in decision making process. The result implies that equilibrium condition is not efficient in orthodox economics regarding eternal reward and punishment system and its norms, and requires revision.
Volume 26, Issue 2 (Spring 2023)
Abstract
Introduction
This study investigates the susceptibility and resistance of H. pylori isolates recovered from gastroduodenal patients naive to clarithromycin.
Methods
To that end, H. pylori strains were isolated from antral biopsies of pretreatment patients, and antral biopsy specimens were subsequently cultured. Presumptive H. pylori colonies were also confirmed on enriched Brucella agar by biochemical tests, including catalase, oxidase, rapid urease, and the standard polymerase chain reaction (PCR) method. The antimicrobial susceptibility testing was performed by standard disk diffusion methods according to the Clinical and Laboratory Standards Institute (CLSI) guidelines. Then, the Epsilometer test (E-test) was used to determine the minimal inhibition concentration (MIC).
Results
Of 180 samples, 80 (44%) were positive for urease and were included for further analysis. 65 were also positive in culture base method. The sensitivity test indicated a 23% resistance rate to clarithromycin among the six clarithromycin-resistant strains: four have a common form of the A2143G mutation, and two have A2142G mutation.
Conclusion
The PCR indicated that the level of resistance to clarithromycin was very similar to the resistance level in Iran.
Volume 26, Issue 3 (Summer 2023)
Abstract
Introduction:
This study aimed to detect H. pylori genome in dental plaque samples and determine the frequency of the dupA after bacterial culture and PCR assay.
Materials and Methods:
In this prospective study, the inclusion criteria were as: age greater and equal to 20; the need for dental examination performed by a clinician, and finally no record of antibiotic uptake against H. pylori 30 days before sampling. All demographic information of included subjects such as gender, age, history of smoking, and anti-H. pylori therapy was also recorded. DNA was extracted and bacterial culturing was performed within 4 hours of sample receipt. A patient was declared positive for H. pylori when the confirmatory glmM PCR result.
Results:
Of 40 symptomatic subjects, thirty-five were H. pylori positive (87.5%). Among the H. pylori-positive subjects, 28 (80%) were dupA positive. Meantime, for the subjects in the healthy group, 15 cases were H. pylori positive, and among this population 6 patients (40%) were dupA positive (P value <0.05). According to this study, it has been shown that in both groups with a periodontal pocket depth of 3-4 mm and without this depth H. pylori was detectable in the dental plaques, but this rate was significantly higher in the patient group (P=0.023).
Conclusions:
Conclusively, the study can be the initial step in the designation of a specific bacterial gene to track the H. pylori infection and chance of associated diseases in clinical samples while discarding the endoscopic examination as the invasive method is the highest priority.
