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Showing 45 results for Zaki


Volume 2, Issue 4 (12-2013)
Abstract

Fusarium graminearum is one of the most important causes of FHB or wheat scab in different part of the world. This fungus is able to produce widespread Trichothecene mycotoxins such as Nivalenol (NIV) and Deoxynivalenol (DON) which are harmful for both human and animals. To determine chemotypes of Trichothecene, a total of 100 isolates from different fields of Golestan province in Iran including Gorgan, Kordkuy, Bandaregaz, Gonbad, Minodasht, Kalaleh and Azadshahr were identified as F. graminearum using morphological features then 96 isolates were confirmed by polymerase chain reaction (PCR) assay using F. graminearum species-specific primers (Fg16F/Fg16R). Based on sequences of Tri13 gene involved in the mycotoxin biosynthetic pathway, PCR assays was used to detect Nivalenol (NIV) and Deoxynivalenol (DON) chemotypes. Of the 96 tested isolates with Tri13 PCR assays, 70 classified as NIV chemotype and the remaining 26 isolates as DON producers. These results indicated that NIV chemotype was the most dominant chemotype in studied zones. A greater proportion of NIV chemotype was found in Gorgan fields (P < 0.05, P < 0.0001), whereas greater proportion of DON was detected in Gorgan and Gonbad fields (P < 0.05, P < 0.0001). Chemotyping by PCR assay were confirmed using HPLC method. These results demonstrated that PCR assay and HPLC could be used as rapid, reliable and cost-effective methods for the detection and identification of mycotoxin-producing Fusarium-species and may thus help to develop strategies to avoid or reduce mycotoxin contamination of cereals.  

Volume 3, Issue 1 (Winter 2020)
Abstract

Three countries, turkey, Syria and Iraq that have the common spillway and basin of Tigris and Euphrates due to increasing dependence to these rivers they have had to establish a dam and control the water streams in their territories. In this regard turkey government which is located upper than its south neighbors based on eastern south Anatolia project or GAP for developing agriculture and industry in its eastern south territory need a huge amount of water of Tigris and Euphrates. Furthermore because of dam building in its territory has decreased the share of water for Iraq and Syria. The reduction of water of Tigris and Euphrates has had negative impacts on environmental security and inappropriate political, economic and social effects on Iraq and Syria. This problem and political goals of turkey in recent decades have made the conflicts and challenges among these three countries. This research based on descriptive and analytic method and resources try to answer this question that what is the effect of hydropolitic gab project on environmental security of Iraq and Syria and what are the turkey goals of this plan? Implementing the phases of gap project in recent decades has had negative environmental impacts such as water pollution, eliminating the rare species, increasing the desertification, destroying the swamps and basins and producing hazes in Iraq and Syria and it seems that turkey government is establishing the hydrohegemony in the region.
Sepideh F.alizadeh, Eshagh Zakipour Rahimabadi, , ,
Volume 4, Issue 1 (6-2015)
Abstract

The effect of partial replacement of NaCl by KCl on sensory and microbial properties of hot smoked kilka (Clupeonella cultriventris caspia) during storage in refrigeratorwas investigated in two stages. Samples were initially prepared and, in the first stage, were exposed to brine solution with 15% mixture of NaCl/KCl at 5 different levels (NaCl 100%, control; NaCl/KCl 75/ 25 %, treatment A;  NaCl/KCl (50/ 50%, treatment B; NaCl/KCl 25/ 75%, treatment C; KCl 100%, treatment D) for 3 hrs. The smoking process included turning the samples into drying and hot smokes by slow and high rates of Atmos set.All samples were tested by sensoryanalysisand saltintaketo select the nominated treatments.In the second stage, sensory and microbial properties of selected treatment were compared with the control samples during storage in refrigerator for 15 days. Microbial tests revealed significantly greaterrate of mold contamination in treatment A (25/75% KCl/NaCl) than the control (100% NaCl) in the early days, but reduced later in both. The sensory analysis indicated no significant difference between the two treatments. According to the results, sodium chloride could be replaced up to 25%with potassium chloride for hot-smoked kilka without negative effects on microbial and sensory properties.
Elnaz Nami, Eshagh Zakipour Rahimabadi, Ali Asghar Khanipour,
Volume 5, Issue 3 (12-2016)
Abstract

The antioxidant effect of sodium alginate coating containing vitamin C was examined on prolongation of the shelf life of rainbow trout (Oncorhynchus mykiss) fillets. The treatments included control group without any additive (C), sodium alginate 1.5% (A), sodium alginate 1.5% containing 5% Vitamin C (A+Vc). The treatments underwent periodic tests of proximate composition (moisture, protein, fat, ash and pH), chemical decays and oxidation tests, including total volatile base nitrogen (TVB -N), peroxide value (PV), tiubarbutic acid (TBA) and free fatty acids (FFA). Based on the statistical analyses, pH, TVB-N, PV, TBA and FFA in A+Vc were significantly (p<0.05) lower than C and A during storage in refrigerator. Significant increases were observed in all mentioned indices in all the  treatments in correlation with the duration of storage time in refrigerator (p<0.05). The coated treatments maintained better quality in comparison to the control group and treatment 3 (sodium alginate containing vitamin C) reduced oxidation of rainbow trout fillets during storage in cold condition (4± 1˚C). 
A. Saffar Shargh, E. Zakipour Rahimabadi, E. Alizadeh Doughikollaee , F. Gheybi,
Volume 7, Issue 1 (Winter 2018)
Abstract

Aims: The functional properties of proteins extracted by Isoelectric Solubilization/Precipitation (ISP) method are influenced by various factors such as the use of acid or base while protein extraction. The aim of this study was to investigate the functional properties of protein extracted from Crucian carp (Carassius carassius), using acidic and basic ISP method.
Materials & Methods: This experimental study was carried out on 56 Crucian carps in Bandar Torkaman City, Iran. The minced meat of fish was randomly divided to 2 homogeneous groups for implementing acidic and basic ISP method. The protein was isolated from meat and its functional properties were evaluated. The data were analyzed by SPSS 21 software, using two-sample t-test.
Findings: The protein extracted from Crucian carp meat had a significant difference in acidic and basic treatments (p<0.05). There was no difference in water holding between two treatments (p>0.05). The emulsion capacity of the extracted protein was significantly higher in basic treatment than the acidic treatment (p<0.05). The emulsion stability index was also significantly higher in basic treatment than acidic treatment. All samples had a flow behavior index (n) less than 1, indicating that these samples had a pseudoplastic behavior.
Conclusion: The protein extracted from Crucian carp meat is higher in the acidic treatment, but the basic treatment has better functional properties. The basic treatment has a higher emulsion capacity than the acidic treatment, and the stability index is high in the basic treatment. Protein solutions as well as acidic and basic emulsions have a pseudoplastic property. The amount of food viscosity is higher in acidic treatments compared to the basic treatment.


Volume 7, Issue 2 (6-2021)
Abstract

In this study, the distribution of 88 species of the family Megachilidae, out of 3678 specimens in the Iranian Pollinator Insects Museum of Yasouj University (IPIM), which were collected in spring and summer 2009–2017 from different regions of Iran including Ardabil, Chaharmahal-o Bakhtiari, Fars, Golestan, Isfahan, Kerman, Khuzestan, Kohgiluyeh-va Boyer-Ahmad, Sistan-o Baluchestan, Alborz, are presented. Data on the number of specimens, locations, coordinates and distribution maps for Iran and global distribution of all species (where available) are also provided. Megachile (Megachile) octosignata Nylander 1852 is first recorded from Iran. Ninetheen species are reported for the first time from Chaharmahal-o Bakhtiari and Kohgiluyeh-va Boyer-Ahmad Provinces.

Volume 7, Issue 2 (Spring 2022)
Abstract

Aim: Musculoskeletal pain is widespread preventive problem in adolescence and have many consequences for their working life and the future of society. This study with the aim of evaluation of evidences on preventable risk factors for musculoskeletal disorders in adolescents was performed.
Method and Materials: In this study, databases such as Science Direct, Web of Science, PubMed, Scopus, Magiran, and Google Scholar were examined. in the period from 2010 to 2020. Totally, 22 articles were included in the study, the selectedcases were thoroughly studied and finalized.
Findings: This study showed that there are several preventable risk factors for musculoskeletal disorders in adolescents, such as low physical activity, psychological factors, unhealthy sleep patterns, ergonomic position at home and school, unproper posture while using digital media, smoking, unhealthy eating, and lack of awareness and appropriate training platforms that have an influential role in musculoskeletal disorders.
Conclusion: Considering the role of various preventable risk factors in the occurrence of musculoskeletal disorders in adolescence, it seems that the participation and common approach of all influential people in providing the desired infrastructure and conditions in the home, school, and community is essential. However, it is suggested that more research be done on other factors affecting the incidence of musculoskeletal disorders in adolescents.


Volume 7, Issue 2 (Spring 2025)
Abstract

The creation of utopian communities and areas based on specific political beliefs, within the framework of the relationship between ideology and space, has manifested in various instances, the most recent being the concept of "no-go areas." This term describes territorialization in urban and rural settings by radical groups that gain control over regions, rendering them dangerous for outsiders, such as immigrants, to reside in or even pass through. This study examines the territorialization of neo-Nazis in the Federal Republic of Germany at the local level between 2006 and 2024, focusing on Jamel as a case study. The data collection method is library-based, utilizing primary Latin and German references, with a descriptive-analytical research methodology. The findings indicate that factors such as concerns over the arrival of foreign immigrants and population decline, particularly in small towns and villages across Germany, have created fertile ground for some extremist right-wing social groups to establish no-go zones. These groups attempt to construct their desired geographical spaces in certain small villages, especially in eastern Germany, by employing symbols and signs associated with the Nazi era. However, the research results reveal that neo-Nazis have limited acceptance, operating only on a local scale among a very small segment of the German population. They differ significantly from new right-wing parties, such as the AfD, in terms of ideology, organization, and performance.


Volume 8, Issue 3 (Summer 2023)
Abstract

Aims: This study is centered on the identification of key factors that contribute to the maintenance of proper posture, aiming to mitigate the occurrence of musculoskeletal disorders (MSDs) arising from repetitive motions and inadequate body positioning in work settings.
Methods: This ross-sectional research was performed to examine the factors influencing the maintenance of proper body posture while working in the assembly line by 250 female workers. The study employed a two-phase cluster sampling technique for participant selection and gathered information about demographic traits, variables associated with Social Cognitive Theory (SCT), and behavior through self-report surveys. The amassed data were subjected to analysis using SPSS version 21 software. This analysis encompassed statistical techniques including Pearson’s correlation and regression tests which all conducted at a significance threshold of p<0.05.
Findings: Totally 250 female workers with mean age of 35.15±7.99 took part in the study. The mean years of their work experience was 8.00±5.91. The study’s results demonstrated a noteworthy correlation between maintaining proper body posture during work and SCT
constructs (p<0.05), except for outcome expectations. Moreover, barrier structures, normative beliefs, intention, and knowledge were recognized as the most crucial determinants of behavior.
Conclusions: The study reveals a noteworthy connection between proper posture and (SCT) components, validating its predictive capacity for endorsing ergonomic practices. This enriches our comprehension of how SCT factors impact the adoption of correct task posture, aiding in targeted interventions and underlining the need for varied strategies to tackle the complex behavioral influences in workplaces.


Volume 9, Issue 2 (Spring 2023)
Abstract

Backgrounds: Several studies have elucidated vitamin D as an important immunomodulatory factor regulating immune responses to different viral infections and vaccines. This study aimed to evaluate the impact of 25(OH) D serum levels on immune responses to hepatitis B virus (HBV) vaccine.
Materials & Methods: This study was conducted on 134 healthy individuals aged 18-35 years, referring to health centers for HBV vaccination in Mane and Samalghan city in North Khorasan, Iran from June to September 2021. Demographic data were collected through a questionnaire. Serum 25(OH) D levels were analyzed using commercial sandwich ELISA kits. Anti-hepatitis B surface antibody (anti-HBsAb) levels were determined in blood samples 4-6 weeks post-vaccination.
Findings: The prevalence of vitamin D deficiency and insufficiency among the participants was 46.3 was 34.3%, respectively. The level of 25(OH) D was insignificantly higher in women than in men. There was no significant association between serum 25(OH) D levels and participants' ethnicities and BMI ranges. Anti-HBsAb titer was significantly higher in participants with sufficient vitamin D levels compared to those with insufficient and deficient levels (1835 ± 252.55 vs. 1129 ± 120.7 and 1363 ± 0.125 ng/ml). Serum anti-HBsAb levels post HBV vaccination were significantly higher in women and younger individuals than in men and older individuals, respectively.  
Conclusion: This study findings suggest that participants with different serum vitamin D levels produce seroprotective antibody titers post HBV vaccination, while those with sufficient vitamin D levels may produce higher titers against HBV vaccine.
 

Volume 9, Issue 3 (Summer 2021)
Abstract

Aims: Training has an important role in improving quality of life. The current study aimed to compare the effect of peer and family-based training on the quality of life of rural diabetic elderly.
Materials & Methods: In this quasi-experimental study conducted in 2020, 30 older adults referring to Shahid Abad village health center in Babol, northern Iran, were randomly assigned to peer group (N=15) and family-based training group (N=15). The intervention in both groups consisted of 6 sessions of 30 to 60 minutes for six weeks. Quality of life was assessed using the LEIPAD QOL questionnaire before, immediately, and two months after the intervention. Data were analyzed using SPSS software version 21.0., Fisher test, Independent t-test, Paired t-test, and MANCOVA.
Findings: Before the intervention, the mean quality of life in the peer group was 61.35±16.49, and the family-based training group was 53.18±6.98, and there was no significant difference (p=0.147). According to paired t-test, changes in quality of life score in the family-based training group was significant in two time periods (before intervention to two months after intervention (p=0.048)), immediately after intervention to two months after intervention (p=0.036), but was not significant in the peer training group.
Conclusion: Family-based training effectively affects the quality of life of rural diabetic elderly in two time periods.


Volume 10, Issue 2 (Spring 2019)
Abstract

Liposomes or biological vesicles are formed from cholesterol, phospholipids, and water. Also, sometimes other biological and non-biological molecules imported in the structure of liposome. The stability of the liposomes in the treatment of diseases and drug delivery, it is vitally important and can be influenced by the composition of phospholipid. In addition, the presence or absence of cholesterol may also affect the stability of liposome. Also, the formation of liposomes is affected by the presence or absence of cholesterol. In this study, we are seeking to affect the presence or absence of cholesterol on the stability and the formation of the liposome. For this purpose, the molecular dynamics simulation method is used. Liposomes that they are simulated was of two types of liposomes type I and liposome type II. The formation analyzes including radial distribution function and solvent accessible surface area showed that each of liposomes created. The type I liposome created one nanodisc structure and type II liposome created two nanodisc structures. Also, energy analysis including total energy, van der Waals interaction energy, and electrostatic interaction energy showed that type I liposome is more stable. Because the cholesterol molecules are the presence of in this liposome structure, that ability to gives hydrogen bonding with side lipids and an increase of stability. In addition, hydrophobic interactions between cholesterol and phospholipids as well as distribution and proper orientation of these parts play a major stake in the stability of the structure.


Volume 10, Issue 2 (6-2024)
Abstract

The New World insect species Frankliniella minuta (Moulton, 1907) is reported from Asia for the first time. This is a member of the Order Thysanoptera and is placed in the subfamily Thripinae of the Thripidae. A total of 45 female and 14 male adults were found on Tridax procumbens (Asteraceae) at the Malaysian Agricultural Research and Development Institute (MARDI) in Selangor, Peninsular Malaysia. Both sexes were taken from the capitula of T. procumbens. The potential threat of this species to the horticultural industry is inconclusive, but the discovery will alert horticulturalists and quarantine entomologists to possible invasion pathways. Diagnostic characters, relevant figures and a key to Frankliniella species in Malaysia are provided.



Volume 12, Issue 2 (6-2009)
Abstract



Volume 13, Issue 2 (3-2022)
Abstract

This paper examines the role of loya Jirga as a traditional civil society. The problem addressed by this study is defined in term of mismatch between actions of Loya Jirga as a traditional civil society and civil society functions; sometimes Loya Jirga has contributed to the process of democratization and occasionally assisted authoritarian rulers in Afghanistan. The paper aims to answer the question: what conditions make Loya Jirga contribute to the process of democratization in Afghanistan? Conceptual framework model used in the research is composed of socioeconomic underdevelopment, tribalism and limitation of Loya Jirga’s democratic action. The empirical findings indicate that if the rate of economic development increases and tribalism, as an anti-democratic political culture, is weak, Loyal Jirga contributes to the democratization in Afghanistan. It means that Loya Jirga has an institutional capacity to democratize the country, however, the nature of its functions depends on its economic, social and political contexts.


Volume 13, Issue 5 (November & December 2022 (Articles in English & French) 2022)
Abstract

Technology has become a quintessential component of educational practice over the past years. Research in this area has shown that the integration of various technologies positively contributed to language education and facilitated learning different language skills. Despite the extensive application of computer assisted language learning for adults, little research has examined Young Language Learners’ (YLL) language development through technology. In this regard, the current study investigated the impact of using a mobile technology on YLLs’ (age range: 6 to 8) vocabulary development. Seventy-one learners participated in the study who were divided into a control (N = 32) and an experimental (N = 39) groups. Data were collected using a vocabulary test in three rounds of pre-test, post-test, and delayed post-test. The collected data in terms of vocabulary test scores were analyzed using mixed between-within subjects analysis of variance. The results revealed that the experimental group who used mobile devices for vocabulary learning outperformed the control group in the posttest and gained significant improvements in the delayed posttest. The study provides implications for various educational stakeholders including teachers, learners, and material developers to exploit the affordances of technology in effectively contributing to YLLs’ vocabulary development.



 

Volume 13, Issue 49 (Spring 2020)
Abstract

The concept of determinism has been studied in Hafiz poetry by many scholars. Some considered determinism, like many other concepts, as a means for literary creation, some viewed it as a justification for astute utterances, while others regarded it as the outcome of Hafiz’ own deterministic views. Though the first two accounts seem accurate, the third one seems imprecise. His literary creation style and worldview, indicative of his free will and open-mindedness, which was manifested in his poems, coupled with the inherent paradox between determinism and reformism, makes it hard to presuppose a relation between determinism and Hafiz’ worldview.
By employing an academic and methodological approach, while recognizing different interpretations, one can gain an understanding, which is closely related to Hafiz’ worldview, of deterministic propositions in his poetry. Following this approach, one should refrain from forming arguments on the basis of single verses. Therefore, the current paper has attempted to analyze deterministic propositions in Hafiz poems by applying Ernesto Laclau and Chantal Mouffe theory. Moreover, based on CDA’s presuppositions, language plays a major role in forming understandings and its means is not always clear. Hence, the paper was aimed at indicating that Hafiz’ use of deterministic propositions can be interpreted not as an indication of his worldview but as a method and medium to expand the discourse of astuteness and, at the same time, to undermine the hegemony of ascetic discourse, which had dominated the cultural atmosphere of Iran for centuries.
 

Volume 13, Issue 52 (4-2016)
Abstract

In this study the effect of different slaughter methods were examined on the quality of rainbow trout during 12 days storage in refrigerator. Treatments were included choked (suffocated) the fish out of water (control), blows to the head with a mallet, cut the base of gill and abdominal drain and the use of water and ice and then hit in the head with a mallet. Peroxide value in abovementioned treatments were increased from 0.96 to 11.03, from 0.92 to 10.60, from 0.86 to 10.20 and from 0.88 to 10.40 meq/kg during storage at 4 ºC, respectively. There were significant differences (P<0.05) in peroxide value (PV), thiobarbituric acid (TBA) and free fatty acid (FFA) content between different slaughter treatments during storage in refrigerator. Slaughter treatments had significant effect on bacterial loading. Lower mesophilic and TVC count during storage period was observed in use of water and ice and then hit in the head treatment followed by cut the base of gill and abdominal drain treatment. All treated samples reached to 7 logCFU/g at day 9. The result showed that gill based amputation treatment had best impact on the quality of rainbow trout during storage period.

Volume 14, Issue 2 (3-2012)
Abstract

Mechanical properties of non-split pistachio nuts are among the lada required for the design of equipment needed for processing of the nut. Unsplit pistachio nut samples were uniaxially loaded to determine the nut’s needed splitting force and energy, as well as Poisson’s ratio and Young’s modulus of elasticity. The tests were carried out at four moisture contents (5, 10, 15 and 20% wb), under four loading rates (10, 20, 30 and 40 mm min-1), and on two varieties (O’hadi and Badami) of the nut. The highest splitting forces for the varieties (281.9 N for Badami and 102.4 N for O’hadi) were obtained at a moisture content of 5% wb and loading rate of 40 mm min-1, while the lowest forces, 97.0 N for Badami and 16.8 for the case of O’hadi, occured at moisture contents of 20% wb along with loading rate of 10 mm min-1. Different trends were observed between O'hadi and Badami varieties for the required energy to split nuts with increasing moisture content and loading rates. By increasing moisture content, Poisson’s ratio for unsplit pistachio nuts increased from 0.374 to 0.388 and from 0.326 to 0.337 for O’hadi and Badami varieties, respectively. Young’s modulus exhibited an indirect relationship with moisture content while a direct relationship with loading rate, in either of the varieties. Increase in moisture content from 5 to 20% wb led to a decrease in Young's modulus, from 322.59 to 223.23 MPa and from 816.25 to 719.28 MPa, for O’hadi and Badami variety nuts, respectively.

Volume 14, Issue 10 (1-2015)
Abstract

The nitrogen oxide emission is known as a potentially hazardous pollutant in reacting flows. To improve this process, it is of fundamental importance to take into consideration environment protection through reduction of fuel consumption in addition to increasing combustion efficiency. The control of NO emission from the combustion process is an important design criterion in modern gas turbine technology. In the present work a two-dimensional combustion simulation is developed for a model gas turbine combustion chamber. The k−ε turbulence model and the eddy dissipation concept model are applied for flow predictions and reaction rate simulation respectively. The flow field pressure linked equations are solved using the SIMPLE algorithm. In the present work, the thermal and prompt NO formations are estimated and calculated for three different methane, propane and pentane fuels. Also the effects of equivalence ratio and primary aeration on nitrogen oxide emission are considered. Results of numerical simulation show that the nitrogen oxide emission significantly affected by the equivalence ratio for all three type of fuels. Also by applying primary aeration the averaged nitrogen oxide production can be significantly reduced.

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