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Showing 34 results for Madani
Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract
Autism is a neurocognitive disorder. Many children with autism do not have a change in language and usually tend to have literal interpretations of phrases, which makes it difficult to understand metaphorical language, which can be seen in both visual and visual metaphors. The aim of this study was to compare auditory and visual metaphorical perception in children with mild autism and normal children. The present study is a cross-sectional and causal-comparative study. The statistical sample of this study includes 30 boys aged 7 to 10 years with mild autism studying in educational centers for exceptional children in Mashhad and 30 normal children matched in terms of age who were selected by convenience sampling method. After initial language assessment, they were assessed by metaphorical perception test and U Mann-Whitney test and SPSS 23 software were used to analyze the data. The results of data analysis showed that in metaphorical perception in general there is a significant difference between autistic and normal children (P <0.001), also, in understanding visual and auditory metaphors, the two groups showed a significant difference (P <0/001). The obtained results indicate that compared to normal children, children with autism have a lower performance in terms of understanding visual and auditory metaphors, and considering this issue can be used in planning and designing educational content and rehabilitation interventions in order to improve educational performance and social benefit of these children.
Volume 2, Issue 4 (12-2017)
Abstract
Background: Identifying the health problems of governmental organizations staff, their health needs, and prioritizing these needs are the first step in intervention planning in order to improve their health. This study was conducted to identify health problems and health-related needs of Mellat Bank employees in Yazd, Iran.
Methods and Materials: For this cross sectional study, 179 eligible employees were selected from 34 branches of Mellat Bank in Yazd province. The data collection tool was a questionnaire containing an open question as "What problems affect your health in your workplace". The questionnaire was sent to all employees of the Mellat Bank through official automation system, to which 167 people ultimately responded. Then the problems were combined, listed, and sorted based on their frequency.
Results: In this study, from a total of 167 employees (92%) responded to the questionnaire, of which 152 (91%) cases were man and 15 (9%) cases were woman. Most of the studied subjects had a bachelor's degree of education. A total of 86 (51.4%) subjects suffered from musculoskeletal problems, among which low back pain (n = 61, 71%), neck pain (n = 39, 45%), and knee pain (n = 26, 30%) were the most frequent. In addition, about 47 (28.1%) and 32 (19.1%) cases suffered from stress and psychological disorders, respectively.
Conclusion: According to the results of this study, the most important identified health problem was musculoskeletal pains. Therefore, in addition to further research to be carried out in order to confirm these results, it is suggested that the causes of these problems be investigated in analytical research in order to be able to design and implement appropriate interventions to address these problems.
Volume 3, Issue 1 (1-2017)
Abstract
Multidrug resistance in Acinetobacter baumannii is a growing public health concern all over the world. In the current study, the isolation and antimicrobial resistance pattern and detection of blaOXA-51 and lpxC genes by multiplex PCR method was performed.
All the isolates demonstrated high levels of resistance rates to amikacin, ciprofloxacin, meropenem, imipenem, ceftriaxone, gentamicin, and colistin. Screening of two resistance genes by multiplex PCR showed that all the isolates contained blaOXA-51 and lpxC genes. As we previously reported, nosocomial infections caused by A. baumannii isolates are a major cause of morbidity and mortality in our hospital.
Volume 3, Issue 4 (12-2017)
Abstract
Background: Enterococci play an important role in the spread of drug resistant genes and thus resistant strains. The dissemination of vancomycin-resistant Enterococci (VRE) strains is one of the crucial issues in hospitals worldwide, especially among those hospitalized patients. This study aimed to assess the antibiotic resistance pattern and the prevalence rates of vanA, vanB, and vanC genes among Enterococcus faecalis strains isolated from meat.
Materials and Methods: This cross-sectional study was performed on 181 isolates of E. faecalis isolated from consumed meat samples in Borujerd city. Antibiotic susceptibility testing was performed using the disk diffusion method according to CLSI criteria. The prevalence rate of vanA and vanB genes in vancomycin resistant E. faecalis strains was identify by PCR technique.
Results: Of 181 Enterococci isolates, 100 strains (55.25%) were E. faesium, and 81 strains (44.75%) were E. faecalis. About 13 antibiotics were used in this study. The highest resistance was observed against erythromycin, linezolid, vancomycin, and penicillin antibiotics, and the lowest resistance was observed against meropenem; none of the isolates were resistant to nitrofurantoin and cefotaxime. A total of 68 isolates (83.95%) were resistant to vancomycin. Among the isolates, 38 isolates (46.9%) contained vanA gene, 21 isolates (25.9%) carried vanB gene, and 18 (22.2%) isolates contained vanA and vanB genes, but van C type was not detected in none of the isolates.
Conclusion: The presence of van gene in the majority of isolates is an indicator of resistant genes large reservoir in the strains rotation in the community. Furthermore, in order to limit the incidence of VRE, the use of antibiotics for human or animal should be taken with caution.
Volume 5, Issue 7 (9-2020)
Abstract
Applying Gideon's Theory of Norms in Qualitative Assessment of Translation of Feridoun Moshiri’s Poems in Arabic. Translation acts as one of the agents of thought change as a bridge for the transmission of thoughts from different languages to one another. Translation has long attracted the attention of translators, and its translation or non-translation has always been the subject of controversy among translation theorists. Poetry is in its most succinct form a language whose language is often not explicit but implicit and moving all of its semantic layers to the target language is very difficult. In translating poetry into Arabic, Iranian poets have moved on to other literary works. In this era, we are seeing more translators trying to translate contemporary Persian poetry. Many of these poems have been translated into Arabic by translators. This method deals with the translation process or the act of translation itself. His theory points to the literary formats that exist in any particular culture and one of its main achievements was that Attention to the relationship between the individual texts of origin and the destination focused on the relationships that exist between the destination texts themselves. the main result of the qualitative evaluation of Abdul Moneim's translation to Arabic Indicates that his work It has an acceptance in the destination culture but it is far from sufficient in the Farsi.
Volume 7, Issue 1 (Winter 2019)
Abstract
Aims: Environmental Tobacco Smoke (ETS) implies one’s inevitable inhale of smoke within a polluted environment. The present Study aimed to investigate the extent to which Hormozgan province residents were exposed to ETS.
Materials & Methods: In the present cross-sectional study, a sample of 3962 residents of Hormozgan province (Urban-rural) was selected through a stratified clustering method and entered the study. The data collection instrument was a questionnaire developed by the researcher which was comprised of two sections. The first section contained demographic information and also enquired about subject’s exposure to ETS as well as the smoking site. Chi-squared test and binary regression were used. The collected data were analyzed via SPSS 19.0.
Findings: 984 subjects (24.8%) were exposed to ETS and women were significantly more exposed to ETS than men (p<0.001). The most probable sites of exposure to ETS were found to be respectively home (52.6%), public places (25.5%) and workplace (21.9%). The highest degree of exposure to ETS was found in Bashagard County (69.6%) while the lowest degree showed to belong to Khamir (14.1%). A statistically significant correlation was found between exposure to ETS and age (p<0.001) and education level (p<.019).
Conclusion: Awareness raising towards the hazards of ETS, warning against smoking indoors, monitoring how anti-smoking rules are applied in public places and workplace, the formation of domestic anti-smoking campaigns, informing the youth through mass media especially women and teenagers are all suggested to cut down on exposure to ETS.
Materials & Methods: In the present cross-sectional study, a sample of 3962 residents of Hormozgan province (Urban-rural) was selected through a stratified clustering method and entered the study. The data collection instrument was a questionnaire developed by the researcher which was comprised of two sections. The first section contained demographic information and also enquired about subject’s exposure to ETS as well as the smoking site. Chi-squared test and binary regression were used. The collected data were analyzed via SPSS 19.0.
Findings: 984 subjects (24.8%) were exposed to ETS and women were significantly more exposed to ETS than men (p<0.001). The most probable sites of exposure to ETS were found to be respectively home (52.6%), public places (25.5%) and workplace (21.9%). The highest degree of exposure to ETS was found in Bashagard County (69.6%) while the lowest degree showed to belong to Khamir (14.1%). A statistically significant correlation was found between exposure to ETS and age (p<0.001) and education level (p<.019).
Conclusion: Awareness raising towards the hazards of ETS, warning against smoking indoors, monitoring how anti-smoking rules are applied in public places and workplace, the formation of domestic anti-smoking campaigns, informing the youth through mass media especially women and teenagers are all suggested to cut down on exposure to ETS.
Volume 7, Issue 28 (11-2019)
Abstract
Rituals and arts, Iranian beliefs and traditions, and therefore the role and status of the ancient and innocent heroes of this land bring about diverse events in the rituals, myths and symbols of the Iranian Shiites, especially in Ashurā culture. The traces of these contents and thoughts can be found in many religious traditions. In this sense, the Ta'zieh manuscript is even more widespread because of its reputation among the general public. This article has attempted to show the impact of Siāvash's story on Ta'zieh version of Imam Hussein. Therefore the purpose of this research is through summarizing the two stories and their characteristics, to examine their similarities and their links with the mysterious birth of a celestial mother, their eternal aspect, their actions and reactions of nature to these heroes, their prediction and awareness of their destiny, their presence of supernatural, equipment, martyrdom, repetition of history, worship and protection, as well as common symbols and references. This research attempts to answer the question of how, in addition to tell a historical fact, it would be possible to combine the myths of mythical heroes with religious leaders in order to make the character more credible and even more praiseworthy.
Volume 9, Issue 3 (summer 2024)
Abstract
Aims: Fibromyalgia is a chronic pain disorder characterized by widespread musculoskeletal pain, fatigue, and tenderness in localized areas. The objective of this study is to investigate the effectiveness of Acceptance and Commitment Therapy (ACT) on pain anxiety, perfectionism, and aggression among women diagnosed with fibromyalgia.
Method and Materials: The current research design was semi-experimental with a pre- test-post-test design with a control group. The statistical population of the research included women with fibromyalgia in Ardabil province of Iran in 2024. In this study, 34 women with fibromyalgia were selected through purposive sampling and divided into experimental (n=17) and control (n=17) groups. The experimental group participated in eight 90-minute sessions of ACT, while the control group did not undergo any intervention. Data collection involved administering the assessment Pain Anxiety Symptoms Scale (PASS), Perfectionism Inventory (PI), and Eysenck Aggression Questionnaires (EAQ). The collected data were then analyzed using multivariate analysis of covariance in SPSS-27.
Findings: The results showed that ACT significantly decreases cognitive (F=41.42, P=0.001, η2=0.61), avoidance (F=37.21, P=0.001, η2=0.59), fear (F=54.71, P=0.001, η2=0.68), physiological anxiety (F=46.72, P=0.001, η2=0.64), perfectionism (F=63.20, P0.001, η2=0.71), and aggression (F=52.11, P=0.001, η2=0.66) in women with fibromyalgia.
Conclusion: This research offers valuable insights into the effectiveness of ACT in enhancing psychological well-being among women diagnosed with fibromyalgia. Subsequent studies should delve deeper into the enduring effects of ACT and its viability within comprehensive treatment strategies for fibromyalgia, striving to deliver tailored and holistic care for individuals grappling with this complex condition.
Method and Materials: The current research design was semi-experimental with a pre- test-post-test design with a control group. The statistical population of the research included women with fibromyalgia in Ardabil province of Iran in 2024. In this study, 34 women with fibromyalgia were selected through purposive sampling and divided into experimental (n=17) and control (n=17) groups. The experimental group participated in eight 90-minute sessions of ACT, while the control group did not undergo any intervention. Data collection involved administering the assessment Pain Anxiety Symptoms Scale (PASS), Perfectionism Inventory (PI), and Eysenck Aggression Questionnaires (EAQ). The collected data were then analyzed using multivariate analysis of covariance in SPSS-27.
Findings: The results showed that ACT significantly decreases cognitive (F=41.42, P=0.001, η2=0.61), avoidance (F=37.21, P=0.001, η2=0.59), fear (F=54.71, P=0.001, η2=0.68), physiological anxiety (F=46.72, P=0.001, η2=0.64), perfectionism (F=63.20, P0.001, η2=0.71), and aggression (F=52.11, P=0.001, η2=0.66) in women with fibromyalgia.
Conclusion: This research offers valuable insights into the effectiveness of ACT in enhancing psychological well-being among women diagnosed with fibromyalgia. Subsequent studies should delve deeper into the enduring effects of ACT and its viability within comprehensive treatment strategies for fibromyalgia, striving to deliver tailored and holistic care for individuals grappling with this complex condition.
Volume 10, Issue 1 (2-2025)
Abstract
Aims: Diabetic Neuropathy Pain (DNP) is a chronic condition that arises from nerve damage caused by prolonged hyperglycemia. It leads to burning, tingling, and sharp pain, primarily in the extremities. This study examines the effectiveness of Cognitive-Behavioral Therapy (CBT) in mitigating recurrent negative thoughts, reducing anxiety sensitivity, and enhancing emotional adjustment in individuals with DNP.
Method and Materials: The study employed a quasi-experimental pre-test-post-test design with a control group, involving 36 patients with DNP from Ardabil clinics located in Ardabil, Iran in 2024. Patients were purposively sampled and randomly assigned to intervention (n = 18) and control (n = 18) groups. The intervention group underwent eight 90-minute CBT sessions, while the control group received no intervention. Data were gathered using the Repetitive Negative Thinking Questionnaire, Anxiety Sensitivity Index-3, and Emotional Adjustment Measure. The collected data were analyzed using MANCOVA in SPSS-27.
Findings: The results demonstrated that CBT significantly improves emotional adjustment (F = 49.46) and reduces recurrent negative thoughts (F = 45.41), as well as physical (F = 52.27), cognitive (F = 59.61), and social dimensions of anxiety sensitivity (F = 38.34) in individuals with DNP (P < 0.001).
Conclusion: The findings highlight CBT's transformative impact on the psychological resilience of DNP patients, fostering adaptive emotional regulation and diminishing maladaptive thought patterns. By addressing the interconnected dimensions of anxiety sensitivity and emotional adjustment, CBT offers a pathway to holistic pain management, emphasizing its potential as a cornerstone in the psychological care of chronic pain conditions.
Volume 12, Issue 4 (3-2013)
Abstract
The Direct Torque Control (DTC) of Interior Permanent Magnet Synchronous Motor (IPMSM) offers simple structure and fast torque response. The conventional Switching Table-based DTC (ST-DTC) presents some disadvantages like high torque and flux ripple and also variable switching frequency. This paper investigates the improved ST-DTC strategies to reduce both torque and flux ripple in DTC of IPMSM with emphasis on structure simplicity and fast dynamics. New switching table with only two active vectors for each sector is introduced and the torque control hysteresis band is replaced by duty cycle calculation unit. For flux ripple reduction, conventional hysteresis-based controller is replaced by simple dithering technique. The duty cycle calculation unit is implemented to operate on each selected vector with the aim of torque ripple RMS minimization. The increase of switching frequency in ST-DTC because of delay in torque and flux estimation process, actually, is not possible; even when hysteresis bands are sufficiently diminished. This paper incorporates the combination of duty cycle modulated DTC and dithering technique to enlarge switching frequency. It therefore provides smoother waveform concurrently for the motor torque and the flux. In the proposed method waveform comparison structure for duty cycle calculation is used; hence, the merits of classical ST-DTC, such as fast dynamic and simple structure, are mostly preserved
Volume 12, Issue 56 (May-june 2024)
Abstract
Fantasy is a type of story that has been noticed in the literature of children and teenagers in recent years. The Possessed of Badyan Island is a teenage novel and a fantasy story written by Badri Mashhadhi. In the present research, this story has been analyzed in terms of the elements and structure of fantasy and climate literature by analytical-descriptive and library method. In this research, a new definition of the genre of fantasy has been presented under the title of climatic fantasy, and by examining the mentioned novel, it has been shown that the story of The Possessed of Badyan Island is a climatic fantasy. Also, by using the climatic fantasy genre, in addition to creating a gothic and scary story with a local atmosphere, the author not only satisfied the need for excitement of teenagers, but also directed the attention of teenagers from similar foreign to local and Iranian examples. It has also used the climate fantasy genre to familiarize the audience with the culture, history, customs, superstitions, etc. of a specific region. Therefore, this story can be considered an example of an Iranian climatic fantasy story.
Volume 13, Issue 1 (March & April 2022 2022)
Abstract
Analyzing the process of mystical language formation, considering its main source, i.e. Qur’an, is an important new field of research. Due to the variety and extent of mystical texts, it requires fundamental and innovative researches so as to discover the hidden dimensions of this language. The aim of this research is then presenting a new proposed model for analyzing the process of mystical language formation, which is introduced as word behaviorology. Word behaviorology that analyzes the semantic changes of Qur’anic words in mystical textbooks is a step toward innovative analysis of the process of mystical language formation Word behaviorology model, using the advantages of Kurt Lewin's field theory in psychology and Izutsu's theory, creates a new form of mystical language analysis. Both Lewin's field theory, due to its considering environmental effects on behavior, and Izutu's theory, due to its considering the direct influence of Qur’an on mysticism, Islamic Sufism, basic and relative meaning, are very helpful in this research. The achievement of this research is that it presents word behaviorology as new path toward mystical language analysis.
1. Introduction
Mystical language, originating from all Islamic sources, is primarily related to the Qur'an, and its most important manifestation is mystical-literary works. The analysis of the reflection of this language based on word behaviorology opens a new path in the analysis of the process of formation of this language. Lewin's field theory is in the field of psychological studies and is used in the analysis of human behavior and the factors affecting it. This theory measures a person's behavior based on the environment around them. The reason for paying attention to this theory and introducing it to the field of linguistic studies is that due to its focus on the effect of environmental factors, it can be helpful in word analysis and the effect of environmental factors on its semantic changes in mystical language. The various dimensions, perspectives and details of Lewin's theory and its various applications in the analysis of psychological events are not the purpose of this study. What makes the basis of this research is the main ideas of Lewin's theory which are redefined according to their application in mystical language. On the other hand, in completing this research, what provides the effective and creative application of Lewin's theory is the use of Izutsu's theory in the book of God and Man in the Qur'an. In the second chapter of the book, by discussing “the Qur'an and the Post-Qur'anic systems”, he analyzes the direct impact of the Qur'anic system on subsequent conceptual systems, including Islamic mysticism. Furthermore, his discussions in the field of semantics, including basic meaning and relative meaning, which pay attention to the meaning of words, were used to analyze the semantic changes of Qur'anic words in mystical texts. Based on the creative use of theories and considering the differences that arise due to their application in mystical texts and the field of mystical language, these theories are used in a reconstructed process in this research. This application can lead to a new model in the analysis of mystical language.
This template is provided for analyzing the language of phrases and mystical teaching texts. This research is done with the focus on the word Tawbah (repentance) in the text of Al-Ta'aruf Li-Madhhab Al-Tasawwuf by Al-Kalabadi. The authors have also written another article on "Analysis of the process of formation of mystical language".
Research Question
The main question of this research is whether Lewin's field theory of psychology and Izutsu's theory of mystical language can be used to introduce the word behaviorology as a new way in analyzing the process of mystical language formation?
Research Hypothesis
The hypothesis of this research is that according to the capabilities of Lewin's field theory in psychology, by taking its focus away from man and his behavior, the focus of the theory can be shifted on the field of words and its behavior in mystical texts and with some fundamental changes, it can be introduced to the field of language studies. Therefore, by using the aforementioned theories, in a reconstructed process, a new model called the behavior of the word can be presented.
2. Methodology
Based on its purpose, this research is a fundamental one that seeks to introduce a new model for the analysis of mystical language. The method of this research, considering its approach to the research problem, is descriptive-analytical in which researchers, using the mentioned theories, try to describe a new topic. The method of collecting information is also library type. Accordingly, first in the theoretical part of the research, an introduction is provided in explaining the theories, and then a new form of combining the two theories in the behavioral model of the word is presented. At the end, an example of the application of the new pattern will be shown.
3. Literature Review
This study, which for the first time presents a behavioral model of the word with the aim of analyzing the process of formation of mystical language in the Qur'an and shows an example of its use, does not have much research background; Therefore, considering the main aspects of the research, some of the works that have paid attention to the formation of mystical language, its relationship with the Qur'an and the creation of a model, have been mentioned in the text of the article in the literature review section of the research.
The theoretical foundations of the present study include part of Izutsu's theory in the book of God and Man in the Qur'an, as well as Kurt Lewine's field theory, the main ideas of which are introduced in the text of the article.
4. Results
The results of this study are: 1. This study as a step in analyzing the process of formation of mystical language, focusing on two points, namely the direct impact of the Qur'an on Islamic mysticism and mystical language according to Izutsu's theory and the creative use of Lewine's field theory in psychology, has designed the behavioral model of the word in mystical language; 2. This model, by including the environments that are formed around the word in the mystical text, showed that the behavioral model of the word can be used over time, with the aim of analyzing the semantic changes of words imported from the Qur'an to mystical teaching texts and by analyzing the semantic changes of the words in mystical texts, the evolution of mystical language can be studied. 3. The behavior of the word showed that a Qur'anic word entering the system of Islamic mysticism, when used by a writer in composing a mystical text, has four environments; lexical environment, mystical-linguistic environment, textual environment and other texts environment. The analysis of the interaction of these four environments in mystical teaching texts can draw a timeline which shows how the word entered into mysticism originated from the Qur'an and what new meanings it has received following the influence of the mysticism and Islamic Sufism based on environmental influences.4. The application of this model shows that Qur'anic words have relative meanings by entering the mystical educational texts under the influence of the four environments. The meanings that are different from the Qur'anic meaning of the word and as a result of being in the conceptual system of Islamic mysticism have been loaded on the words and sometimes from the combination of words, new combinations have emerged which, although not used directly in the Qur'an, they have Qur'anic roots. Drawing a pattern based on the word "Tawbah" (repentance) in Al-Ta'aruf showed that the word "Tawbah" entering this educational text, due to the influence of the mentioned environments, carries relative meanings which, although different from the Qur'anic meaning and formed under the influence of Islamic mysticism and Sufism, they are yet under the influence of the great Qur'anic system. Therefore, according to the behavioral model of the word, in the process of formation of mystical language based on mystical educational texts, Quranic words accept new meanings by entering the system of Islamic mysticism, and by moving through a mystical-linguistic path, they create and develop a mystical language.
Volume 13, Issue 2 (Fall & Winter 2009)
Abstract
Studing and explaining the regional power system structure in different geographical regions of the world help us effectively to know the regional countries and powers, specially to reveiew their overseas policies. Grading of such countries based on national power helps us to know them much better. We can determine the geopolitic position of each one of these countries through their geopolitic characteristics in relation to other countries of the world. To find out the geopolitic status of any country, testing the national power of that country is a "must". In other words, it is a necessary evaluate and calculate different physical and non-physical parameters in this sense. In fact, the resultant of the forces, weight or gravity and also the positive and negative elements of national power producers, i.e. the algebric sum of power producing elements will determine the geopolitical status of countries. National power that forms the geopolitical status of countries, is produced based on the indexes of geopolitical structure.Considering the situation of the Islamic Republic of Iran as one of the Middle Eastern countries, and by studying and comparing the differences of power elements in these countries, one can determine the real place of Iran in this strategical region. By determining the superior or inferior powers and also by knowing Iran’s status in the structure of this power system, the regional cooperations will be performed more clearly, and this will help the politicians and policy makers to protect the national interests and to materialize the national goals.
Volume 13, Issue 2 (8-2013)
Abstract
Elastic optical network has recently raised immense research efforts to serve as a highly-flexible and scalable platform required by the emerging on-demand cloud applications. Besides, virtual network embedding on top of elastic optical network has been introduced as a promising solution to fine-grain sharing of node processing and optical bandwidth resources. Owing to the diverse delay sensitivity requirements of heterogeneous cloud applications, an efficient double queue scheduler is presented, to deliver differentiated setup delay embedding in a fair manner. Extensive numerical simulations carried out over two prototype substrate networks, demonstrated that our proposed scheme can concomitantly enhance blocking and fairness performance of the single queue scheduler over wide range of offered traffic loads.
Volume 13, Issue 59 (0-0)
Abstract
Application of microbial lipids as an alternative source of oil was considered in the early years of 20th century. Microbial oil rich in essential polyunsaturated fatty acids (omega series) is one of the important aspects of single cell oil production. By development of technical - economical processes and also by optimization of microbial lipid production, high efficiency of microbial lipid can be provided. In this study, two standard yeast strains and four native strains were evaluated for potential of lipid production. Optimization of lipid production in these strains was carried out using design of experiments and factors affecting lipid synthesis in these strains were compared. Obtained oil was analyzed using Gas Chromatography-Mass spectrometry (GC-MS). Among the standard strains, Yarrowia lipolytica DSM8218 and the native strain Cryptococcus albidus had maximum lipid production rate of 7.65 g/L and 11.81 g/L, respectively. Application of Taguchi method was so effective in optimization of microbial lipid production and significantly increased production in evaluated strains. These lipids have potential for applications in food and pharmaceutical industries.
Volume 13, Issue 60 (0-0)
Abstract
Microbial oil has lots of similarity to the plant’s oil; the only difference between them is that microbial oil is rich in unsaturated fatty acids. This oil can be used in pharmaceutical industry for technical purposes or as edible oil in food industry. The purpose of this study was to increase lipid production and the amount of unsaturated fatty acids in oleaginous yeasts by mutagenesis. In this study, optimization of lipid production in the yeast ,Yarrowia lipolytica, was done using ultraviolet random mutation and screening was done with the inhibitory effect of cerulenin on lipid synthesis. Mutants that had normal growth in the presence of cerulenin were selected as superior strains for further investigations. Lipid production in mutants and wild strains were compared after incubation period. Then, the mutant with significant increase in lipid production was selected. The best mutant had increasing of 50% and 30% in lipid production and growth yield, respectively. Also, Linoleic acid was increased after mutation. The composition of fatty acids in the lipid profile of the evaluated yeast did not change a lot after mutation. Of course, unsaturated fatty acids were increased, so this technique was very effective to improve lipid production. Cerulenin used as an effective screening technique in this study and paved the way for the isolation of superior mutants.
Volume 15, Issue 1 (4-2015)
Abstract
Abstract—Base station assisted device-to-device communications(D2D) lets cellular users communicate directly.
As D2D connections can operate on a joint frequency band,interference management is essential to boost the spectral
eciency and users’ quality of service. Two di erent approaches are proposed to tackle the interference in D2D
networks. A power control scheme and a frequency-time scheduling are examined to achieve long-term fairness among D2D users. The power control maximizes weighted sum-rate of the users, where the weights indicate priorityof the users. The second proposed strategy is to avoid interference when it is high. In this algorithm, the spectrum band is divided among users as interference coupling rises.
A metric from the information theory literature has been adopted to measure the coupling. The proposed schemes
are tested through multiple time slots and the average rate of a user and network sum-rate have been observed.
The results demonstrate the superior performance of the proposed power control scheme.
Volume 15, Issue 3 (Fall 2011)
Abstract
There has long been no compromise between the experts about an important subject such as public regularity. In spite of the high importance of public regularity concept in ordering the legal system and also confining legitimate rights of citizens and exposure of legal return, according to contravention, passing or deviation from it. Hence, two different proponents and opponents have tried to prove their own beliefs against each other according to applying reasons and each of them has offered some logics about their own rightfulness. The authors regarding the parties’ reasons, necessary pillars and criteria about this idea believe that, since in all topics related to public regularity, the target is to avoid doing any task, there identifying and defining the concept of public order is an important issue which cannot be overlooked easily. Authors defend a doctrine with different reasons that needs and necessitates presenting a definite description. It is also emphasized to explain this concept and remove the existing challenges need endeavor of legislators and lawyers in illustrating profits and social benefits as an undeniable subject.
Volume 16, Issue 3 (10-2016)
Abstract
Secure outsourcing is essential to growth of cloud usage. There are some protocols allowing any functionality to be outsourced. However, specific constructions are necessary in order to do so in an efficient way. In this paper, we consider the problem of secure outsourced pattern matching. Our solution is based on Bit-Parallel Shift-ADD algorithm. The properties of this insecure algorithm allow our construction to search in an outsourced text, without revealing any non-trivial information to the computing server. We achieve a round optimal protocol that allows us to search for patterns with wildcards and handles the Hamming distance computation. Since the protocol has no leakage to the server, it cannot be optimal considering communication complexity; however, we suggest efficient techniques to achieve communication optimality through outsourcing of decryption as well. The security of our protocol is proved in the semi-honest setting. Then, in order to retain the efficiency of the protocol, we omit the correctness property in the malicious setting and prove that the scheme remains private in the presence of malicious adversaries.
Payam Rahim Mashaei, Seyed Mostafa Hosseinalipour, Hamid Fazeli, Mohsen Taheri Ghazvini, Sajede Madani, Kazem Esmailpour,
Volume 16, Issue 13 (Conference Special Issue 2017)
Volume 16, Issue 13 (Conference Special Issue 2017)
Abstract