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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Information Technology Management
- نوع مقاله: Journal Article
- کلمات کلیدی: Grounded Theory,Information Technology,Organizational Learning,Iran Khodro Co (IKCO),Knowledge Management Implementation,Resource Based View of Organization
- چکیده:
- چکیده انگلیسی:
- انتشار مقاله: 11-10-1348
- نویسندگان: Mahdi Saedi,Hamid Reza Yazdani
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Immunology
- نوع مقاله: Journal Article
- کلمات کلیدی: atherosclerosis,FOXP3,Natural Tregs,CD45RO
- چکیده:
- چکیده انگلیسی: Background: Atherosclerosis is a chronic inflammatory disease affecting large and medium arteries. CD4+ T cells are known to play a role in the progression of the disease. CD4+CD25+Foxp3+ natural Treg (nTreg) cells seem to have a protective role in the disease and their reduction in acute coronary syndrome is recently shown. Objective: To investigate the frequency of nTreg subsets in the peripheral blood of patients with atherosclerosis. Methods: Confirmation of atherosclerosis was done by angiography and 15 ml heparinized blood was obtained from each of the 13 nondiabetic patients and 13 non-diabetic, non-smoker individuals with normal/insignificant coronary artery disease which was also confirmed by angiography. Lipid profiles of the patients and controls were measured at the time of sampling. Mononuclear cells were used for both RNA extraction and immunophenotyping by real-time PCR and flowcytometry techniques, respectively. Results: In natural Treg subsets, the frequency of CD4+CD45RO-CD25+Foxp3lo T-cells (resting nTregs) was greater in controls than patients (p=0.02). The frequency of CD4+CD45RO+CD25hiFoxp3hi T-cells (activated nTregs) was significantly higher in controls compared with patients (p=0.02). However, the frequency of CD4+CD25+CD45RO+Foxp3- T-cells (effector/memory) increased in patients compared with controls (p=0.01). Both the MFI and gene expression of Foxp3 were higher in control group than in patients (p=0.015 and p=0.017, respectively). Moreover, the TGF-β gene expression showed a decrease in the peripheral blood mononuclear cells of patients compared with controls (p=0.03). Conclusion: Decrease in both subsets of resting and activated nTregs along with a decrease in the expression of Foxp3 and TGF-β genes in patients with atherosclerosis suggests phenotypic changes in these subsets, which may as well be correlated with a more inflammatory profile in their lymphocytes.
- انتشار مقاله: 04-10-1395
- نویسندگان: Mohammadreza Yazdani,Shahdad Khosropanah,Ahmad Hosseini,Mehrnoosh Doroudchi
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Finance and Managerial Accounting
- نوع مقاله: Journal Article
- کلمات کلیدی: Credit Risk,KMV model,Probability of Default
- چکیده:
- چکیده انگلیسی: According to the adverse consequences that are brought by financial distress for companies, economy and financial –monetary institutions, the use of methods that can predict the occurrence of financial failure and prevent the loss of wealth is of great importance. The major models of credit risk assessment are based on retrospective information and using the methods which use the updated market data for prediction of the probability of default can lead to the increase of the reliability of results. The purpose of this study is to obtain optimal default barrier in KMV model by using an approach based on genetic algorithm and compare the performance of the proposed model to KMV model. Research data included all data of listed companies in the Tehran stock exchange that were bankrupted from 2009 to 2014 according to the article 141 of the commercial code. In total, 25 companies were considered as distressed companies and 50 non-bankrupted companies were also selected as the control group and then results of the two models were compared. The study results showed that the performance of the presented model in prediction of bankruptcy and separating distressed from non-distressed companies is better than KMV model. At the end, the optimal cut off rate was calculated to determine whether a specific company will be bankrupt or healthy according to its probability of default. The results showed that the calculated optimal value led to 80% correct prediction in 2015.
- انتشار مقاله: 10-05-1396
- نویسندگان: Meysam Hasanzadeh,Ahmad Reza Yazdanian
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Agricultural Management and Development
- نوع مقاله: Journal Article
- کلمات کلیدی: Transition Period,Personal And Social Indices,Managerial Strategies,Managerial And Economic Indices
- چکیده: The purpose of this research was to study the effects of four personal and social variables including the age, literacy, job experience and size of herd on different variables such as implementing of managerial strategies in transition period, relevant costs of these strategies, average production per head and gross income of milk sale per head. For this purpose all required information were collected through questionnaire distribution among the owners of commercial dairy farms of Shahroud district. This questionnaire was included three parts. Relevant information about personal and social indices was inserted in first part. Second part included of relevant information about performance and non-performance of considered managerial strategies in transition period and third part was about relevant information about production and economic records. Finally all information about 50 herds was obtained and compared as well. Data analysis was through applying Multiple Linear Regression (MLR) method. Also it was possible to specify any relation among independent and dependent variables through calculation of Pearson Correlation Coefficient. Finally it was revealed that social and personal factors have a significant effect on the implementation of management strategies and other independent factors.
- چکیده انگلیسی: The purpose of this research was to study the effects of four personal and social variables including the age, literacy, job experience and size of herd on different variables such as implementing of managerial strategies in transition period, relevant costs of these strategies, average production per head and gross income of milk sale per head. For this purpose all required information were collected through questionnaire distribution among the owners of commercial dairy farms of Shahroud district. This questionnaire was included three parts. Relevant information about personal and social indices was inserted in first part. Second part included of relevant information about performance and non-performance of considered managerial strategies in transition period and third part was about relevant information about production and economic records. Finally all information about 50 herds was obtained and compared as well. Data analysis was through applying Multiple Linear Regression (MLR) method. Also it was possible to specify any relation among independent and dependent variables through calculation of Pearson Correlation Coefficient. Finally it was revealed that social and personal factors have a significant effect on the implementation of management strategies and other independent factors.
- انتشار مقاله: 07-06-1394
- نویسندگان: Hamed Kashfi,Ahmad Reza Yazdani,Farhad Shirani Bidabadi,Mehrdad Latifi
- مشاهده
- جایگاه : پژوهشی
- مجله: Immunology and Genetics Journal
- نوع مقاله: Journal Article
- کلمات کلیدی: Consensus,management,Symptoms,guideline,Primary immunodeficiency
- چکیده:
- چکیده انگلیسی: Primary immunodeficiency (PID) is a group of more than 400 distinct genetic disorders affecting both children and adults. As signs and symptoms of PID are usually heterogeneous and unspecific, based on the available human resources and laboratory facilities, diagnosis and follow-up of these patients can be challenging. In line with this notion, management and treatment of PID are practiced divergently in different PID centers. In order to reach a distinct national protocol and given the little evidence on appropriate or universal guidelines to improve the current status of management of the disease, the Iranian PID network designed a consensus suitable for regional resources. This review summarizes this PID guideline based on the importance of different clinical complications and the level of medical authority visiting those at the first line. Further, for each complication, appropriate interventions are mentioned to improve the approach.
- انتشار مقاله: 29-10-1397
- نویسندگان: Hassan Abolhassani,Marzieh Tavakol,Zahra Chavoshzadeh,Seyed Alireza Mahdaviani,Tooba Momen,Reza Yazdani,Gholamreza Azizi,Masoud Movahedi,Amir Ali Hamidieh,Nasrin Behniafard,Mohammamd Nabavi,Saba Arshi,Mohammad Hassan Bemanian,Morteza Fallahpour,Sima Shokri,Rasol Molatefi,Roya Sherkat,Afshin Shirkani,Reza Amin,Soheila Aleyasin,Reza Faridhosseini,Farahzad Jabbari-Azad,Iraj Mohammadzadeh,Javad Ghaffari,Alireza Shafiei,Arash Kalantari,Mahboubeh Mansouri,Mehrnaz Mesdaghi,Delara Babaie,Hamid Ahanchian,Maryam Khoshkhui,Habib Soheili,Mohammad Hossein Eslamian,Taher Cheraghi,Abbas Dabbaghzadeh,Mahmoud Tavassoli,Rasoul Nasiri Kalmarzi,Seyed Hamidreza Mortazavi,Sara Kashef,Hossein Esmaeilzadeh,Javad Tafaroji,Abbas Khalili,Fariborz Zandieh,Mahnaz Sadeghi-Shabestari,Sepideh Darougar,Fatemeh Behmanesh,Hedayat Akbari,Mohammadreza Zandkarimi,Farhad Abolnezhadian,Abbas Fayezi,Mojgan Moghtaderi,Akefeh Ahmadiafshar,Behzad Shakerian,Vahid Sajedi,Behrang Taghvaei,Mojgan Safari,Marzieh Heidarzadeh,Babak Ghalehbaghi,Seyed Mohammad Fathi,Behzad Darabi,Saeed Bazregari,Nasrin Bazargan,Alireza Khayatzadeh,Naser Javahertrash,Bahram Bashardoust,Mohammadali Zamani,Azam Mohsenzadeh,Sarehsadat Ebrahimi,Samin Sharafian,Ahmad Vosughimotlagh,Mitra Tafakoridelbari,Maziar Rahimi,Parisa Ashournia,Anahita Razaghian,Fatemeh Aghaeimeybodi,Setareh Mamishi,Nima Parvaneh,Nima Rezaei,Asghar Aghamohammadi
- مشاهده
- جایگاه : پژوهشی
- مجله: Desert
- نوع مقاله: Journal Article
- کلمات کلیدی: Climate,Agroforestry systems,Agrosilviculture,Agrosilvopasture,Component
- چکیده:
- چکیده انگلیسی: There has been some decline in the land potential capacity in many developing countries, and depending on location,
the multi objective management strategy of Agroforestry can make effective use of natural resources to be feasible.
Environmental principles which are effective on Agroforestry systems and their components, together with climatic
factors, are the important parameters which been evaluated in this study. Two cities, Kazeroun (with warm climate) and
Sepidan (with cold climate) in Fars province, were chosen for the purpose of this research, and after proper identification
and classification of the Agroforestry systems, the effects of climatic factors were analyzed. Nineteen points were
identified in these two cities by field investigations, with each type of Agroforestry systems and their corresponding
components determined in each point. From the results, most of the systems in Kazeroun, characterized with warm
climate, were Agrosilvopastoral, while Sepidan with a characteristic cold climate was the Agrosilvicultural system. Also,
the components of each system clearly changed with change in climate, owing to the great importance of the livestock and
crop components in Kazeroun and Sepidan, respectively. In general, it can be concluded that the impact of climatic factors
on Agroforestry systems and their components has been approved in this study, and the results can be applied in
developing these systems in other regions.- انتشار مقاله: 23-06-1393
- نویسندگان: Pardis Goudarzian,Mohammad Reza Yazdani
- مشاهده
- جایگاه : پژوهشی
- مجله: Chemical Methodologies
- نوع مقاله: Journal Article
- کلمات کلیدی: Iran,Trauma,Accidents,fracture,Spine injures
- چکیده:
- چکیده انگلیسی: Spinal cord injury is known as a kind of injury that causes inability. The investigation of the epidemiology of spinal cord injury and time in different regions might help to collect information for preventative measures of work. This study was conducted to investigate the epidemiology and radiologic findings of patients with traumatic spine injures among patients subjected to Emergency Department of Shahid Mohammadi Hospital of Hormozgan University of Medical Sciences. A retrospective descriptive-analytic method was adopted with an analysis of all the patients who were admitted by the diagnosis of traumatic spine injury in Shahid Mohammadi hospital. They all underwent a radiologic study. After receiving permission from the ethics committee, we extracted the data from patients’ files and carried out the analyses. Mean of age for subjects was 40.2 and 148 patients (71.50%) were men and 59 patients (28.50%) were women. The most trauma was associated with road accidents (n=124, 59.9%) and 83 cases (40.10%) were related to falling from height. Ten patients (4.80%) were dead due to trauma and 197 patients (95.20%) survived. Compress fracture (n=88, 42.50%), burst fracture (n=64, 32.40%), fracture dislocation (n=57, 27.50%) and transverse process fracture (n=43, 23.80%) accounted for all the cases. The most fracture was associated with L1 vertebrae (n=53, 15.9%), T12 (n=43, 13.40%), L2 (n=36, 11.20%) and C5 (n=16, 5%). The results for fracture in main parts showed that highest fractures were observed in cervical (n=69, 21.63%), thoracic (n=98, 30.72%) and lumbosacral (n=152, 47.64%). Our results showed that the most common causes of spinal injury in Bandar Abbas are accidents that must be reduced by observing traffic rules and guarantying transport safety.
- انتشار مقاله: 12-06-1399
- نویسندگان: Reza Yazdani,Saeed Hayati,Mahdieh Yousefi Kafshgari,Alireza Ghasemi,Seyed Ashkan Tabibzadeh Dezfuli
- مشاهده