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Gholamour Azizi I.,Islamic Azad University at Babol | Rouhi S.,Islamic Azad University at Qaemshahr
Iranian Journal of Public Health | Year: 2013

Background: Fumonisins and aflatoxins are mycotoxins that are produced by Fusarium and Aspergillus genus respectively. Due to the toxicity of aflatoxin and fumonisin and its effects on human and animals' health, the purpose of this study was analysis of total fumonisin and total aflatoxin contamination in biscuit and cookie samples in Babol City, Northern Iran. Methods: Thirty biscuit (n=15) and cookie (n=15) samples were randomly collected at supermarkets in Babol City in winter 2011. Competitive ELISA was conducted for total fumonisin and total aflatoxin separately. Results: Out of 30 biscuit and cookie samples, 28 (93.4%) samples were contaminated with <2ppm of total fumonisin and 2 (6.6%) showed infection with 2-4ppm of this toxin. The highest contamination rate of total fumonisin was 2.3 ppm in biscuit samples. In addition, none of the samples was infected by > 4ppm of total fumonisin. From 30 samples, 26 (86.7%) were contaminated with <4ppb of total aflatoxin and 4 (13.3%) were positive in total aflatoxin with ≥4ppb and highest contamination rate was found 7.9 ppb in biscuit samples. Contamination rate of samples by total aflatoxin was higher than total fumonisin. Conclusion: Since biscuits and cookies are extensively used among all ages of humans, consumption of contaminated food causes different diseases in human. Therefore, determination, management, and prevention of mycotoxins according to the climatic conditions should be considered. Source

Fazlpour B.,Islamic Azad University at Babol | Banijamali A.,Iran University of Science and Technology
Advances in High Energy Physics | Year: 2015

We study dynamics of generalized tachyon scalar field in the framework of teleparallel gravity. This model is an extension of tachyonic teleparallel dark energy model which has been proposed by Banijamali and Fazlpour (2012). In contrast with tachyonic teleparallel dark energy model that has no scaling attractors, here we find some scaling attractors which means that the cosmological coincidence problem can be alleviated. Scaling attractors are presented for both interacting and noninteracting dark energy and dark matter cases. © 2015 Behnaz Fazlpour and Ali Banijamali. Source

Fazlpour B.,Islamic Azad University at Babol | Banijamali A.,Iran University of Science and Technology
Journal of Cosmology and Astroparticle Physics | Year: 2015

We perform a full investigation on dynamics of a new dark energy model in which the four-derivative of a non-canonical scalar field (tachyon) is non-minimally coupled to the vector torsion. Our analysis is done in the framework of teleparallel equivalent of general relativity which is based on torsion instead of curvature. We show that in our model there exists a late-time scaling attractor (point P4), corresponding to an accelerating universe with the property that dark energy and dark matter densities are of the same order. Such a point can help to alleviate the cosmological coincidence problem. Existence of this point is the most significant difference between our model and another model in which a canonical scalar field (quintessence) is used instead of tachyon field. © 2015 IOP Publishing Ltd and Sissa Medialab srl. Source

Esmaeili H.R.,Shiraz University | Gholami Z.,Islamic Azad University at Babol
Iranian Journal of Fisheries Sciences | Year: 2011

The normal and lateral line cycloid scales of a cyprinid fish Rutilus frisii kutum Kamenskii, 1901 have been subjected to scanning electron microscopy technique to study their detailed structure. The scales have the general morphological characteristics of the cycloid scales. In the normal scale located below the dorsal fin, the focus lies on the anterior region with few mucous pores. There is a clear-cut demonstration between the anterior and posterior region. In the posterior part, the scale has several rows of pigmented granules (tubercles) with different shapes of round to oval, semi-oval and even oblong structure. On the dorsal side, some circuli bear teeth-like structures called lepidonts can be seen which help the scale in firm attachment to the skin. The circuli may also have calcium projections. The lateral line scale has a canal which characteristically lies along the anterior-posterior axis with anterior and posterior openings. The anterior opening is wider than the posterior one and is hidden by an evelike extension cantilevered over it. Based on the obtained results it could be concluded that the shape and size of lepidonts on the circuli crest, the position, shape and size of tubercles and the presence of both anterior and posterior radii may provide reliable taxonomic tools. Changes in the circuli pattern, breakage of the circuli, loss of lepidonts and tubercles may be used to access the habitat condition of this carp especially habitat pollution. Source

Haghdadi M.,Islamic Azad University at Babol
Monatshefte fur Chemie | Year: 2013

Density functional theory (B3LYP/cc-pVDZ// B3LYP/cc-pVDZ) is used to optimize the geometries of 1,2,7-thiadiazepane and natural bond orbital (NBO) analyses have been carried out employing the HF/6-31G(d,p) level using B3LYP/cc-pVDZ geometries to study the stereoelectronic effects on the stability of the stereoisomers (axial-axial, equatorial-equatorial, and axial- equatorial). The results of NBO calculations showed that the axial-axial or axial-equatorial stereoisomers are the most stable conformers, where not only the stereoelectronic effect, but also the steric repulsion significantly affects their stability. © Springer-Verlag Wien 2013. Source

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