OALib Journal期刊

ISSN: 2333-9721



匹配条件: “Ghodratollah Roshanaie” ,找到相关结果约27条。
Evaluation of Student Satisfaction from Hamadan University of Medical Sciences Educational Process and Programs in 2011-2012
Edris Hoseinzadeh,Yadollah Hamidi,Ghodratollah Roshanaie,Parvin Cheraghi
Pajouhan Scientific Journal , 2013,
Abstract: Introduction: Mission of Universities is to respond to the needs and expectations of its key stakeholders and specially their students. Quality promotion and continuous improvement of education and research processes in universities of medical sciences is important. Determining of student satisfaction level as the most important indicators to reach the desired quality should be considered. Thus this study with purpose of student satisfaction evaluation from education and research processes in Hamadan medical sciences faculties was performed.Material and Methods: This cross - sectional study was conducted in Hamadan University of Medical Sciences at 2011-2012. 385 students selected from all schools based on stratified method. To measure student satisfaction a researcher made questionnaire consisted of 71 questions related to various aspects of educational services (9 compasses) was used. Obtained data were analyzed using SPSS 16 software the chi-square test.Results: Most of the participants (72.2%) were in the age group 25 to 21 years. 50.3 percent of students were female. Most of students were at the undergraduate level (38.8%) and physician (32.9%). Level of satisfaction for all compasses was at moderate level. Based on statistic result only in internships and apprenticeships compasses satisfaction level showed a significant correlation with studying duration (P<0.05). Also in the teachers counseling, workshops and laboratory activity compasses the stratification level had a significance relation with degree (P<0.05).Conclusion: The results showed that the student’s satisfaction from educational processes is at moderate level. Satisfaction level based on degree of students is different, so managers and policy makers of educational system as well as teachers of various degrees can utilize the present study results to restructure of educational strategy in order to promotion the quality and the satisfaction level of educational services.
Isolation of Bacillus Cereus from wounds and burns
Behzadiannejhad Gh,Jammshidi P,Roshanaie M
Tehran University Medical Journal , 1997,
Abstract: The culture results of 203 cases with different wounds were studies; 150 of the latter were burn cases (mainly second and third degree burns), and 53 were of other types (surgical, traumatic, ect). Four subtypes of Bacillus cereus were isolated upon culture, and the different toxins produced in DHT broth with 0.1% glucose were assessed. The lethal toxin was injected intravenously to Syrian rats, none of whom died. VPR factor was assessed in the 4 subtypes. Three subtypes produced VPR in significant amounts.
Ghodratollah Talaei,Mehran Nejati
Lex et Scientia , 2008,
Abstract: Corporate Social Responsibility (CSR) is a concept which suggests organizations, especially (but not only) corporations, have an obligation to consider the interests of customers, employees, shareholders, communities, and ecological considerations in all aspects of their operations. CSR is closely linked with the principles of Sustainable Development, which argues that enterprises should make decisions not only based on financial factors such as profits or dividends, but also based on the immediate and long-term social and environmental consequences of their activities. In the absence of evidence of the research in the area of CSR in auto industry domain in Iran, the current paper may be a starting-point for a debate and possible strategies to implement CSR concept in this area. Also, CSR indicators for assessing companies’ of the industry based on their commitment toward their social responsibilities are proposed in this research. These indicators can also be adapted with appropriate modifications to meet th needs and conditions of similar companies in other countries or companies in other industries.
On the Cayley graph of a commutative ring with respect to its zero-divisors
Ghodratollah Aalipour,Saieed Akbari
Mathematics , 2013,
Abstract: Let $R$ be a commutative ring with unity and $R^{+}$ be $Z^*(R)$ be the additive group and the set of all non-zero zero-divisors of $R$, respectively. We denote by $\mathbb{CAY}(R)$ the Cayley graph $Cay(R^+,Z^*(R))$. In this paper, we study $\mathbb{CAY}(R)$. Among other results, it is shown that for every zero-dimensional non-local ring $R$, $\mathbb{CAY}(R)$ is a connected graph of diameter 2. Moreover, for a finite ring $R$, we obtain the vertex connectivity and the edge connectivity of $\mathbb{CAY}(R)$. We investigate rings $R$ with perfect $\mathbb{CAY}(R)$ as well. We also study $Reg(\mathbb{CAY}(R))$ the induced subgraph on the regular elements of $R$. This graph gives a family of vertex transitive graphs. We show that if $R$ is a Noetherian ring and $Reg(\mathbb{CAY}(R))$ has no infinite clique, then $R$ is finite. Furthermore, for every finite ring $R$, the clique number and the chromatic number of $Reg(\mathbb{CAY}(R))$ are determined.
Application of some combinatorial arrays in coloring of total graph of a commutative ring
Ghodratollah Aalipour,Saieed Akbari
Mathematics , 2013,
Abstract: Let $R$ be a commutative ring with unity and $Z(R)$ and ${\rm Reg}(R)$ be the set of zero-divisors and non-zero zero-divisors of $R$, respectively. We denote by $T(\Gamma(R))$, the total graph of $R$, a simple graph with the vertex set $R$ and two distinct vertices $x$ and $y$ are adjacent if and only if $x+y\in Z(R)$. The induced subgraphs on $Z(R)$ and ${\rm Reg}(R)$ are denoted by $Z(\Gamma(R))$ and $Reg(\Gamma(R))$, respectively. These graphs were first introduced by D.F. Anderson and A. Badawi in 2008. In this paper, we prove the following result: let $R$ be a finite ring and one of the following conditions hold: (i) The residue field of $R$ of minimum size has even characteristic, (ii) Every residue field of $R$ has odd characteristic and $\frac{R}{J(R)}$ has no summand isomorphic to $\mathbb{Z}_3\times \mathbb{Z}_3$, then the chromatic number and clique number of $T(\Gamma(R))$ are equal to $\max\{|\mathfrak{m}|\,:\, \mathfrak{m}\in {\rm Max}(R)\}$. The same result holds for $Z(\Gamma(R))$. Moreover, if the residue field of $R$ of minimum size has even characteristic or every residue field of $R$ has odd characteristic, then we determine the chromatic number and clique number of $Reg(\Gamma(R))$ as well.
The Determination of Promising Mineral Zones in 1:100,000 Varamin Sheet Based on Geochemical Studies (Heavy Minerals)  [PDF]
Seyyed Reza Mortazavi, Ghodratollah Mohammadi
Open Journal of Geology (OJG) , 2016, DOI: 10.4236/ojg.2016.68057
Abstract: In many parts of the world, data obtained from geochemical exploration of stream sediments are integrated with geological and geophysical data as one of the most efficient methods of exploring potential deposits at regional and semi-detailed scales. The aim of regional investigation is to study large areas to identify anomalies that might have been arisen from increased concentrations of an element or some elements in a region. A total of 78 geochemical samples were taken from Varamin sheet to identify regions of anomalies. The following information was used to perform a detailed geochemical exploration, in particular for geochemical sampling. 1) 1:100,000 geological map of Varamin. 2) 1:50,000 topographic maps of the region. 3) 1:100,000 airborne geophysical map of the region to locate shallow intrusions and hidden faults. The sampling network was designed using the above data and the analysis of 1:500,000 topographic maps. The sampling density was higher around faults and apparent and hidden intrusions, and lower in plains and lowlands.
The Relationship between Empowerment and Organizational Citizenship Behavior of the Pedagogical Organization Employees
Ghodratollah Bagheri,Hassan Zarei Matin,Faezeh Amighi
Iranian Journal of Management Studies , 2011,
Abstract: Employee empowerment and organizational citizenship behavior have very important roles in the process of accomplishment and continuous development of organizational performance. Therefore, the purpose of this article is to determine the relationship between these two variables in employees of Qom province pedagogical organization. Ninety nine statistical samples were selected from the population through classified sampling. The researcher-made questionnaire was used to measure the empowerment and its components and the Moorman and Black s standardized questionnaire was employed to measure organizational citizenship behavior and its components.The components of empowerment are expertise, courage in action, work ethics, communicative skills, thinking, and experience gaining. The results of t-test showed that the situation of empowerment and organizational citizenship behavior were relatively desirable. But the results of Spearman s correlation coefficient and partial correlation coefficient showed that there was no relationship between empowerment and organizational citizenship behavior of employees (p<0.05). However, the relation of communicative and behavioral skills to organizational citizenship behavior was significant.
Survival estimating following recurrence in gastric cancer patients and its relative factors
Ghodratollah Roshanaei,Anoshirvan Kazemnejad,Sanambar Sadighi
Koomesh , 2011,
Abstract: Introduction: Gastric cancer (GC) is one of the most common cancers in the world. Despite of improvements in cancer treatment, survival rate of these patients is low. There are various factors that influence on the recurrence. The aim of this study was to assess the survival of the gastric cancer patients with relapse and determine the related risk factors. Materials and Methods: A total of 93 gastric cancer patients with relapse who entered from 21 March 2003 to 21 March 2007 to the cancer institute of Imam Khomeini Hospital (Tehran) were surveyed in this study. The survival time was considered monthly from the time of cancer diagnosis up to death or end of study. The effect of various risk factors such as gender, diagnosis age, tumor site, pathologic stage of disease, type of treatment, degree of differentiation on survival patients after relapse are considered in this study. Result: From 93 patients with relapse, 79.6% were men. 48.4% of patients were died during their follow up. The mean age from diagnosis to relapse was 15.7 ± 11.7 and half of the patients experienced relapse 11 months after the treatment. Survival mean and median were 14.5 and 9 months respectively. One, three and five year survival of the patients was 0.42, 0.19 and 0.13 respectively. Pathologic stage, age at diagnosis, degree of differentiation and using radiography were significantly related to the survival. Conclusions: Half of the patients experienced relapse in the first year following their treatment. Thus, monthly referral of patients is necessary for timely diagnosis.
Estimated survival time in gastric cancer patients and its associated factors
Ghodratollah Roshanaei,Sanambar Sadighi,Maliheh Safari,Javad Faradmal
Koomesh , 2012,
Abstract: Introduction: Gastric cancer is the second most common cancer after lung cancer and the leading causeof cancer mortality. Gastric cancer of the lining of the stomach gradually affects the adjacent layers ofstomach and spreads out. With studying the characteristics of these patients and determining factors inpredicting affecting survival, it may be possible to predict or to improve their survival.Materials and Methods: In this study, 199 patients with metastatic gastric cancer were studied and theage at the time of diagnosis, type of treatment, degree of tumor differentiation, the number of sites involvedand many other factors affecting the length of survival time of patients were evaluated. For data analysis,Kaplan-Meier and Cox proportional hazards model were used.Results: 151 patients (75.9%) were male and 71 patients (35.7%) died in the end of follow-up. The meanand median survival time of patients was 24.7±3.9 and 19 months, respectively. Survival probability of one,three and five year of patients were 0.66, 0.19 and 0.06, respectively. Fitted model showed that age atdiagnosis and level of hemoglobin associated with survival in patients with metastatic gastric cancers(P<0.05).Conclusion: With early diagnosis in patients with gastric cancer, risk can be greatly reduced
Phylogenetic Analysis of HBV Based on PreS Region in Iranian Hepatocellular Carcinoma Patients
Zahra Goodarzi,Reza Malekzaedeh,Ghodratollah Montazeri,Seyed-Moayed Alavian
Hepatitis Monthly , 2007,
Abstract: Background and Aims: There are eight genotypes (A-H) of hepatitis B virus (HBV), which show a characteristic worldwide distribution. Genotyping can be accomplished based on a partial sequence of HBV genome such as the PreS or S gene. The aim of this study was to determine the HBV genotypes in Iranian hepatocellular carcinoma (HCC) patients with chronic HBV infection.Methods: Serum sample of 10 HCC patients with chronic HBV infection were subjected to PreS Hemi-Nested PCR. The viral genotype of each sample was determined by bi-directional sequencing of the PreS amplicon and phylogenetic analysis by comparing the nucleotide sequence with 33 reference HBV strains obtained from the GenBank.Results: Phylogenetic analysis based on PreS region sequences disclosed that all isolated strains belonged to genotype D. Analysis of sequences revealed that all the sequences contained amino acid substitutions. In the PreS2 region of two samples, a point mutation in the start codon was found. There were some deletions with 3, 6 and 8 amino acids in PreS2 region of three samples. Conclusions: Despite the low number of samples, these data revealed that the HBV genotype D is dominant in Iranian HCC patients. Most of the mutations are located at immunodominant epitopes involved in B or/and T cell recognition.

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