Investigation on microbial deterioration of exquisite collection of old manuscripts in Iran

Background and Objectives: The present study was to evaluate the microbial diversity inhabiting biodeteriorated precious manuscripts of the Holy Quran placed in one of the repositories of the Library of Astan Quds Razavi (AQR), and its relation to the air microbial diversity. Materials and Methods: Three non-invasive sampling methods, culture-based techniques, and molecular identification were used to investigate the microorganisms involved in deterioration. To investigate the air microbial quality and its role in the destruction of the repository objects, air samples were taken from six different points inside the repository. Biomodeling studies were designed to verify the impact of microbial isolates. Results: 14 fungal isolates were obtained from three deteriorated ancient Quran manuscripts. The most frequently isolated fungi from the different substrates were Aspergillus spp. and Penicillium spp. In the air, the prevalence across fungal genera was rather uniform. 30 species of the identified bacteria were collected from three manuscripts. The results obtained in the present study showed that the bacterial species from different genera belonged to three phyla: Proteobacteria (n = 2), Actinobacteria (n = 4), and Firmicutes (n = 24). The paper strips were artificially colonized by Aspergillus sp., Penicillium chrysogenum, and Talaromyces diversus producing spots which were visible to the naked eye. In the scanning electron microscopy images, the colonization of the selected organism was observed. Conclusion: The characteristics of paper inoculated artificially with these microbial isolates confirmed their deteriorating effects. Based on molecular identification, the similarity of fungal and bacterial species isolated from both substrates and air samples suggest the direct relationship between microorganisms from the air and those isolated from the manuscripts

Exploring nursing students’ experience of peer learning in clinical practice

Background: Peer learning is an educational process wherein someone of the same age or level of experience level interacts with other students interested in the same topic. There is limited evidence specifically focusing on the practical use of peer learning in Iran. The aim of this study was to explore nursing students’ experiences of peer learning in clinical practice. Materials and Methods: A qualitative content analysis was conducted. Focus groups were used to find the students’ experiences about peer learning. Twenty‑eight baccalaureate nursing students at Bushehr University of Medical Sciences were selected purposively, and were arranged in four groups of seven students each. The focus group interviews were conducted using a semi‑structured interview schedule. All interviews were tape‑recorded, transcribed verbatim, and analyzed using conventional content analysis method. Results: The analysis identified four themes: Paradoxical dualism, peer exploitation, first learning efficacy, and socialization practice. Gained advantages and perceived disadvantages created paradoxical dualism, and peer exploitation resulted from peer selection and peer training. Conclusion: Nursing students reported general satisfaction concerning peer learning due to much more in‑depth learning with little stress than conventional learning methods. Peer learning is a useful method for nursing students for practicing educational leadership and learning the clinical skills before they get a job