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Background and Aim: Aspergillosis are the most prevalent cause of the respiratory infections. These fungi show invasive aspergillosis(IA) in immunocompromised patients. The number of immunocompromised patients are increasing due to immunodisorder illnesses, grafts and immunosuppressor drugs, so, rapid identification methods are very important. The aim of this study was to detect the Aspergillus spp. In fluid samples by nested PCR, and compare with culture and direct smear.

Materials and Methods: Conventional detection methods such as culture and direct smear are unsensitive and time consuming. Some methods such as immunodetecting methods have high false positive and are unreliable. Nowadays, molecular methos and PCR are very helpful. These methods are both sensitive and reliable and very rapid. In this study, we used Nested PCR, culture and direct smear to detect Aspergillus spp in BAL fluid samples.

Results: This research is a descriptive-comparative study and has been done for rapid identification of fungi related to Aspergillosis such as culture, direct smear and nested- PCR. Findings of this study show that positive results by nested-PCR were more effective and sensitive than culture and direct smear.
Conclusions: We found that positive results by PCR were more effective and sensitive than two other methods.

Background and Aim: Problems such as hypothyroidism and aggressiveness may lead the organizations to reduced and seek to increase further behaviors that have the benefits for organization, such as productivity. One of the factors that produce productivity organization is organizational citizenship behavior. The aim of this study was to determine the relationship between the component of organizational citizenship behavior with human resources productivity among selected hospital's staff in Tehran University of Medical Sciences and Shahid Beheshti University of Medical Sciences.

Materials and Methods: This research was carried out in 6 Hospitals of Tehran University of Medical Sciences and Shahid Beheshti University of Medical Sciences by attitude approach survey and data has been collected via questionnaire that was distributed among 429 staff of these hospitals by 2 stage stochastic sampling method. Research methodology has been descriptive, analytical and cross sectional. For survey to accept or reject the study hypothesis, was performed spearman correlation and regression tests with SPSS software.

Results: The study results showed that, in our population perception, there was a significant relationship between organizational citizenship behavior and productivity in people. This means that, in these hospitals, implementation of organizational citizenship behavior has effect on the amount of peoples productivity.
Conclusion: In this study, the effect of magnanimity and look over component on productivity had different results in the studied hospitals. But results are same as the initiative of individual creativity component. In addition the potential reasons for probable low levels of these components and their related indices have been analyzed and the solutions have been presented for their improvement.

Background and Aim: Firms are always looking for a way to increase the profitability of products or services. Therefore, the determination of cost of services to achieve this goal seems necessary. Aiming to clarify such costs in governmental units, the present study was designed to explain the allocation of costs based on each unit’s activities.

Materials and Methods: This was a descriptive study. Using field methods, the data were obtained from the activities carried out in Medical Imaging Center of Imam Khomeini Hospital in 2010-2011. To calculate the expenses of each unit, both direct and indirect costs of that unit were included. Data were analyzed using activity-based calculations. And ultimately, the cost-benefit of services rendered in each unit was calculated based on the difference between revenues and expenses.

Results: With the average revenue of 573,486 rials and a cost of 527,962 rials per service, the benefit per service was computed to be equal to 45,524 rials.

Conclusion: With the full implementation of the accrual accounting system, the cost of all services can be obtained, and services will be priced optimally in each unit. Besides, the management of all costs and elimination of unnecessary ones will lead to the reduction of the total cost of services while maintaining the necessary efficiency. Moreover, it will enable the organization to survive and develop based on its strategic activities.

 Background and Aim: Scientific journals are the most major tools in disseminating research findings. With the increasing number and price of scientific journals, libraries need to select journals. Citation analysis is a practical method in identifying the best titles to be subscribed. This study was to identify core journals in the field of dentistry using citation analysis.

 Materials and Methods: Two hundered and seventy six documents including dentistry theses (241 titles) and faculty papers (35 titles) indexed in Science Citation Index (SCIE) were selected and their references were extracted and evaluated using citation analysis methods. The distribution frequency of journals confirmed the Bradford’s Law of Scattering representing core dentistry journals.

 Results: Eleven thousand twenty three references were totally extracted. Average reference per theses and papers was 39/25 and 44/74, respectively. English journals and books were the most frequent referred documents having 95% of total references approximately. The most updated references were in English dated during 2001-2005 and 2006-2010. Using the Bradford’s Law, five journals were introduced as core dentistry journals.

 Conclusion: Selecting and subscribing core journals leads into cost-effectiveness in libraries and plays an important role in meeting user’s needs. While having many challenges in accessing scientific resources, core journals selection and subscription is an intelligent action resulting in effective use of financial resources.