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Showing 4 results for Bahadoran


Volume 5, Issue 4 (12-2017)
Abstract

Aim: Babies form the most sensitive and most vulnerable group in every society. Some studies have shown that improving the quality of infant sleep is a way to improve the quality of his/her life.
Methods: The present interventional study was conducted on 110 mothers and babies using random sampling in three groups (face-to-face, e-learning and control). Educational interventions included the researcher’s individual meetings with the mothers in the face-to-face training group and giving educational CDs in the e-learning group to improve the quality of infant’s sleep. Information was completed in the parents’ diary registration forms. ANOVA and analysis of variance with repeated measures were used to analyze the data.
Findings: The mean scores of infant sleep quality in the first care before and after the intervention between the three groups of face-to-face training, e-learning and control were not significantly different. While in the second and third cares, infant sleep in e-learning and face-to-face groups was better than in the control group. Moreover, at certain hours of the day, infants in face-to-face group had better sleeping in comparison with those in the e-learning group, and the difference was significant.
Conclusion: Due to lack of statistically significant difference between the three groups in terms of infant sleep and given that increased sleep can be considered as a normal phenomenon in infants, more studies are needed in this area to achieve accurate results.
Alireza Omidvar, Peiman Mosaddegh, Hadi Bahadoran,
Volume 16, Issue 9 (11-2016)
Abstract

Metals and polymers are frequent materials for engineering purposes. Technological advances have called for new materials with high stiffness and low production cost, especially in automotive industry. Up until now, the more common approach was to employ high strength metals like steel in manufacturing different parts and coating them subsequently with regard to their application, in order to reach maximum performance. One of the novel composites is metal-polymer hybrid which is produced by injection molding a layer of polymer on a laser cladded metal to form a laminated composite. The superiority of this method lies in the diversity of pattern and powder material and feed rate in cladding that can be optimized for a particular loading in different applications. Evaluating parameters are, holding pressure, mold temperature, cladding pattern, and polymer thickness. Simple Tension and three-point bending tests showed that the maximum strength of joint adhesion was achieved at mold temperature, lower holding pressure (70MPa), higher thickness (3mm), and parallel pattern. Moreover, better flexural modulus was reached at mold temperature, lower holding pressure (70MPa), lower thickness (2mm), and parallel pattern.

Volume 17, Issue 2 (3-2015)
Abstract

Tuberose (Polianthes tuberosa L.) is one of the most important bulbous ornamental crops of tropical and subtropical areas. The objective of the present study was to determine the interaction effects of salinity and irrigation intervals on growth and flowering of two important commercial cultivars (‘Mahallati’ and ‘Dezfuli’) of tuberose (Polianthes tuberosa L.). Irrigation treatments consisted of four irrigation intervals 2, 4, 6, and 8 days, and salinity treatments in the irrigation water were EC values of 0.7 (control), 1.9, 3.1, and 4.3 dS m-1. This research was carried out in a complete randomized design with factorial arrangement. It can be concluded that tuberose is sensitive to water and salinity stress. In both cultivars of tuberose, vegetative and reproductive parameters were unfavorably affected by these stresses. However, ‘Mahallati’ was more sensitive to those stresses than ‘Dezfuli’. Further investigations are needed to clarify in depth the mechanism of tuberose sensitivity to the studied environmental stresses at both molecular and ultra-structural levels.

Volume 21, Issue 1 (Spring 2018)
Abstract

Aims: Environmental pollution and exposure to toxic metals such as lead can induce to chronic and malignant diseases and has considerable complications including carcinogenicity, immunotoxicity, and neurotoxicity. The aim of this study was to compare the protective effect of clove essential oil and vitamin C on the toxicity of lead accumulation in quail eggs.
Materials and Methods: The current clinical trial study was performed on 360 quail chicks in a poultry farm of the Veterinary Medicine faculty of Shahrekord University in 2016. Quails were randomly divided into 6 groups with different diets. After intervention, at the age of 42 days, 5 eggs were gathered from each group. An Atomic Absorption Spectroscopy (AAS) was used to determine the tissue accumulation of lead in quail eggs. To measure the amount of lipid oxidation, TBARS (Thiobarbituric Acid Reactive Substances) test and Malondialdehyde (MDA) was measured. The data were analyzed using one-way analysis of variance and Tukey's post hoc test by GraphPad Prism 5 software.
Findings: The mean of lead accumulation in quail eggs in the group receiving lead and clove essential oil was significantly lower than those receiving lead (p<0.05). Also, the mean concentration of malondialdehyde in the lead intake group was significantly higher than that of the two groups receiving the lead plus the essential oil of clove or vitamin C (p<0.05).
Conclusion: The use of clove essential oil in quail diet has a more protective effect than vitamin C on the toxicity of lead accumulation in quail eggs.

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