Original Articles


Examining the prevalence of various sleep disorders indormitory living students in Kermanshah University of Medical Sciences-2014
Faramarz Gharagouzlo, Zeinab Nazari, Ali Avakh, Mohammad Hossein Ebrahimi, Mohsen Poursadeghiyan, Hamed Yarmohammadi, Mehdi Raei
 
Pages: 1-7
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: One of the human basic need is sleeping. Poor sleep quality due to students' decreased concentration in the classroom would weaken their academic performance.This study aimed to examine the prevalence of various sleep disorders and its relationship with demographic characteristics in dormitory living students in Kermanshah University of Medical Sciences. In this cross - sectional study, )115( females and )85( males students randomly and availability among dormitory students of Kermanshah University of Medical Sciences were selected. In order to collect data, after obtaining students' satisfaction, personal information questionnaire and Pittsburgh standard questionnaire (PSQI) were used. Data were analyzed at a significant level of)p<0.05( using SPSS version 16, and using descriptive statistics techniques (frequency, mean, standard deviation) and inferential statistics (Chi-Square Tests). Findings: In this study, )42.5%( of the subjects were men and )57.5%( were women, age mean was)22 ± 2.3( years.)57.5%( of the students had poor sleep quality which consist)57.3( and )57.6%( of the men and women's population respectively and there did no find significant relationship between sex and sleep quality variable (P = 0.97). There was a significant relationship between sleep quality with consumption of caffeinated beverages (P = 0.01), feeling refreshed in the morning (p = 0.003), difficulty falling asleep (p = 0.001), sense of calm in the morning (p = 0.001), fatigue during the day (p = 0.001). The major consequences of sleep deprivation are drowsiness, dysfunction and grumpy, these factors reduce students' concentration and lead to academic failure. Thus increasing the students' awareness level in terms of sleep hygiene and adverse effects of poor sleep quality can be a useful strategy for improving the quality of students' sleep. Also, authorities can provide suitable educational and welfare conditions for students, take an effective step in enhancing the quality of sleep.
Conducting Risk assessment by William-Fine method in one of Kermanshah tile factory in 2014
Younes Sohrabi, kiamars sharafi, Ali avakh, Mohsen Poursadeghiyan, zeinab nazari, Mohammad Hossein Ebrahimi, hamed yarmohammadi, Mehdi Raei
 
Pages: 8-13
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: The increasing development of industries and industrial technology led to increase various and unknown risks in different working environments. Risks in projects are unknown possible events or conditions which if occur, have positive and negative impact on project objectives. Therefore, risk identification and quantifying positive and negative consequences on project goals has critical importance. This study aimed to determine risks level by separating different units in a Kermanshah tile factory was performed. In this study, William Fine method which has a systematic and organized risk assessment technique in identifying potential hazards and estimating the level of risk in order to managing risk and reduce it to an acceptable level was used. For this purpose, after identifying plant's activities and processes, risks and potential factors were identified and then given to severity impact, likelihood occurrence and possible consequences of exposure to humans, environment and equipment, job evaluated and classification of risks was carried out. Analysis results of William Fine methods identified a total number of 406 risk which of these identified risks, 15.5% of risks were at normal level, 2/37% were at abnormal level and 47.3% were at high-risk level. The highest risk was related to welding unit with 62 risk and lowest risk was related to color making unit with 4 identified risk. According to the high level of risk and resulting dangers in mentioned industry it is suggested to reduce or eliminate risks, necessary training should be given to workers, and also due to the presence of silica dust and high noise pollution, at such industry, corrective measures such as designing and installing ventilation, regarding risk management guidelines and the use of appropriate and standard personal protective equipment is recommended.
A Survey of Third-party Audit for Data Storage Security in Cloud Computing
Fatemeh Mehri, Marzieh Khakzadi, Mahboubeh Shamsi
 
Pages: 14-22
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: As an emerging technology and business paradigm, Cloud Computing has taken commercial computing by storm. Cloud computing platforms provide easy access to a company’s high-performance computing and storage infrastructure through web services. The main goal of cloud computing concept is to secure and protect the data which come under the property of users. The division of distributed resources in cloud computing through the network in an open environment causes some security problems.Cloud data security is a major concern for the client while using the cloud services provided by the service provider. There can be some security issues and conflicts between the client and the service provider can be resolved through the revisions conducted by TPA. To securely introduce an effective TPA, the auditing process should bring in no new vulnerabilities towards user data privacy, and introduce no additional online burden to user. In this paper, first, basic cloud concepts are analyzed, and different models used in it are examined. The significance of security, privacy preserving, and the issues related to reliability in cloud problems are reviewed. Then a brief overview of cloud storage is presented, and to store reliable data using cloud services, different mechanisms are analyzed.
The effect of different foliar application amount and different times of seaweed using (Acadian) on potato yield and yield components
Hamid Gharakhani, Seyyed Mohammad Javad Mirhadi, Mohammad Yazdandoost
 
Pages: 23-27
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: In order to investigate the effect of different foliar application amount and different times of seaweed using (Acadian) on potato yield and yield components, an experiment as a factorial form in a randomized complete block design with three replications in 2015 in Hamedan was conducted. The applied factor was included different levels of seaweed extract at four levels of control (foliar application with distilled water), 0.5, 1 and 2 per thousand and different times of foliar application at four vegetative, flowering, after flowering, vegetative and after flowering stages was observed. The obtained results showed that the using of Acadian increases the plant height, number of stems per plant, number of leaves per plant, number of tubers per plant, plant tubers weight, tuber yield and dry matter content. The most plant height in 2 per thousand of Acadian treatment, the most number of leaves per plant, tuber yield per plant and tuber yield in 1 per thousand of Acadian treatment and the most number of stems per plant, plant tubers weight, and dry matter content in treatments 1 and 2 per thousand of Acadian were obtained. Also the most plant height, number of stems per plant, number of leaves per plant in foliar application at the vegetative stage as well as the vegetative and after flowering stages, the most number of tubers per plant and plants tuber weight in foliar application of Acadian at flowering stage and the most tuber yield and dry matter content of Acadian in foliar application at flowering stage, and also vegetative and after flowering stages were obtained. In general, 2 per thousand foliar application of Acadian at flowering stage had more effect than other treatments on the tuber yield.
The effect of durum wheat yield stability by using of parametric and non-parametric methods
Maryam Akbari, Mostafa Aghaee Sarbarzeh, Khodadad Mostafavi
 
Pages: 28-32
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: Access to high-yielding and stability of crop varieties in various environmental conditions has a particular importance in breeding programs. In order to determine the genotypes of durum wheat with high and stable yield in various environmental conditions and experiment with 20 wheat genotypes by using of randomized complete block design with three replications in three different environmental conditions during two crop years 2012-2013, 2013-2014 in Karaj, Kermanshah and Nishapur was conducted. Various stability statistics with significantly interaction effect of year × location × genotype in order to select of high-yielding and stability genotypes was used. The results show that selected lines based on different methods were somewhat different. In terms of variation coefficient, genotype 4 was selected as stable genotypes. In terms of Rick ecovalance indicators, the genotypes 13 and 16 had the lowest changes. According to the Shukla, genotype 13 by having the most yield amount and stability and the lowest changes was known as the most stable.
Best approximation solution optimal control of the wave equation: optimal boundary control of a string to rest in finite time
Mehdi Ramezani
 
Pages: 33-40
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: In this paper, we present a numerical functional analysis method for approximations the solution of the one-dimensional hyperbolic telegraph equation. We formulate a general problem in a Sobolev space making use of the mixed Schauder basis and the least-squares method to approximate the load function and the solution of the general problem. In addition, we give a convergence result and a numerical solution of the telegraph problem.
What does drive consumers to misbehave on Service Outlets? (Case Study=Iranian chain stores)
Mahsa Akbari, Mohammad Ali Abdolvand, Farhad Ghaffari
 
Pages: 41-48
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: The purpose of this study is to identify the demographic antecedents and motivations, which lead customers to misbehave in an attempt to minimize the impact of customer misbehavior on service setting. Data were collected from a survey of chain stores (n=384). Confirmatory factor analysis and structural equation modeling were used to analyze the data. Using survey responses, the empirical results demonstrate the association for the forwarded research hypothesis. This study draws a link between demographic variables (Age, education, Income) and motivational variables (financial motivation, Ego gain motivation, and Revenge motivation). The data suggest that demographic factors and motivations have impacts on the customer misbehaviors. The research agenda outlines direction and implication for future studies. Summary of statement of contribution: The novelty point of this study is to illuminate the motives of misbehavior for the first time based on the background of Iranian culture.
Interpersonal Relationships in Devout Business Context: a new scale development
Hossein Emari, Hossein Vazifehdoust*, Hashem Nikoomaram
 
Pages: 49-59
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: Devout Business context affects the expectations of stakeholders about interpersonal relationships. This study develops a better understanding of Business relationships in devout context by defining a new construct, Devout Business Relationships (DBR), and by developing a new scale for measuring the construct. The Churchill’s paradigm adapted by Negra and Mzoughi was adopted. A total of 76 items were generated based on the 41 interviews. This set of items was reduced to 18 after dropping out redundant or not representative items. In a pilot study, factor analysis on the 18-item scale yielded a three-factor structure scale of seven items with a reliability ranging from 0.7 to 0.8. The Devout Business Relationships Scale (DBRS) was statistically confirmed and validated, in a subsequent investigation. The proposed measurement scale warrants further exploratory study. Future research should assess the validity across different devout geographies. Academics will find devout context specific measurement instrument useful in their research efforts. Moreover, managers will also find it useful for evaluating their business relationship performance in such context.
Comprising the Quality of Life and Depression in Heart Failure Patients and Healthy Individuals
Sara Mathmir, Seyed Hamzeh Hosseini, Maryam Nabati
 
Pages: 60-63
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: The purpose of the current investigation was to compare quality of life and depression in heart failure patients and healthy individuals. The population of study included all referrals to Al-Zahra hospital of Sari, Iran and two cardiologist doctors’ offices from October 2nd till December 11th in the year 2014 for check-ups or treatment. Sampling method and the sample size were 200 cardiac patients as purposeful and 100 healthy subjects randomly that a total of 300 subjects in two groups of 200 cardiac patients and 100 healthy subjects were selected to complete questionnaires of the research. Questionnaires of HADS and quality of life SF-12 were used to measure the depression and the quality of life respectively. T-test for the two samples was used independently as well as SPSS software for data analysis. The results showed that there were significant differences in depression and quality of life between heart failure patients and healthy individuals so that, depression in people with heart failure was more than in healthy people and the quality of life was less in heart failure patients rather than in healthy individuals.
Increasing Beauty Growing beauty
Kazem Dehqanian Fard, Sayyed Mojtaba Hosseini
 
Pages: 64-69
Published Date: 25 January, 2016
[ Abstract ]
ABSTRACT: By reason of that increasing beauty, daily increasing that Joseph had, I know That love for him would bring Zulaikha forth from the screen of chastity Hafez, (2006, p. 4) Increasing beauty is the beauty and attractiveness that gets more every day, like the beauty of Prophet Joseph (pbuh), which caused Zulaikha not to tolerate and get out of the chastity get trapped in desire and whim. There are two types of human beauty; one is the beauty of face and the other is the beauty of nature or the hidden beauty that Hafez uses the word “ravishing” for it. Some people naturally have the face beauty, and it is not to be acquired, but the beauty of nature interpreted as “light” is a kind of beauty acquired by try and purification of heart. In addition, people are constantly changing, as according to the words of Quran mountains and things are changing. A moment of human is different from his moment ago. In the words of Rumi (Molavī): Life is ever arriving anew, like the stream, though in the body it has the semblance of continuity. (Rumi 2009, p. 387) Moreover, this is why belief and unbelief are both involved in light and darkness of human face and are constantly appear as light or darkness. Believers and those who have a pure and clear heart get light and pleasant face. These people disseminate positive energy and people are comfortable with them. This is called “Increasing Beauty”.
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