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The purpose of this study is to present a model for influential factors on customer loyalty in public libraries and its evaluation in public libraries of western Iran.

This research is a correlation study and uses a questionnaire as a data gathering tool. The statistical population consists of all members of public libraries in western Iran. The final data analysis was carried out using 467 completed questionnaires and data were analysed using SPSS19 and AMOS19 software.

The findings of this study showed that perceived value has the largest influence on customer loyalty with a factor of 0.451. The second most influential factor is customer satisfaction with a factor of 0.214. Three predictor variables are the effect of the services, controlling the provided information and library as a location, which had the highest influence on perceived value of libraries’ customers. The findings also showed that perceived value with meaningfulness level of p < 0.001 and a value of 0.316 has the most influence on libraries’ customer satisfaction.

Identifying and improving the influential factors on customer loyalty in public libraries can increase the customer return rate of these libraries. Public library managers of Iran, especially in western Iran, can use the findings of this study to improve the influential factors on customer loyalty in libraries under their care.

The purpose of this meta-analysis was to examine the effect of pomegranate juice (PJ) intake on glycemic control in adults.

Materials and methods: PubMed (Medline), ISI Web of Science, Cochrane Library and Scopus databases, measuring glucose and/or insulin and Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) in adults, were searched from inception to December 11, 2021. Moreover, to examine whether grouping factors influenced heterogeneity between research results, subgroup analysis was used.

This meta-analysis showed that PJ intake reduced HOMA-IR significantly, especially if =250 mL was used. This reducing effect remained significant in females, nondiabetic patients and unhealthy subjects.

The authors believe the presented data would be highly motivating and of a wide readership for the readers of your journal, and this paper stimulating a surge of research on the impact of PJ consumption on glycemic indices.