A revision of the Mediterranean and the Aegean geographic regions of Turkey of Salvia L. (Labiatae) is presented. According to the results, the study area has 60 taxa, 32 of which are endemic (mainly local endemics), 5 of which are non-endemic rare, and the remaining 23 taxa are widely distributed. The rate of endemism is 53% in the area. At the beginning of the thesis, history and worldwide distribution of the family and the genus are briefly given. Phylogenetic studies and infrageneric grouping of the genus are discussed. As well as, recent studies on the genus such as taxonomical, morphological, micromorphological and karyological are provided. Geographic, phytogeographic, topographic, and climatic features of the area are explained. Since 2005, about 2000 specimens have been collected and examined as the research materials. In addition, a large number of specimens have been seen and studied in ANK, AEF, BM, E, ERCIYES, G, GAZI, HUB, K, KNYA, LE, ISTE and ISTF herbaria. Digital photos of some specimens including type specimens have been seen from B, W and A herbaria. In the field when the specimens were detected geographical location (including GPS), habitat, phenological data and relevant field observations were all recorded. In the study, comparative morphological characters and their variations are discussed Anatomical features, such as root, stem, leaf and petiole, micromorphological properties, such as trichome, pollen and nutlet, of the species are comprehensively studied and their taxonomic implications are discussed. According to field studies and literature surveys, endemism, pyhtogeography, habitat, phenology, chorology, new distribution areas and conservation status of the species are determined. Infrageneric delimitation of the species using multivariety analysis is performed. In addition, first sectional key and sectional grouping of the species are made. As well as, identification key of the species is given. At the end of the thesis, expanded and corrected description, address, photographs and some notes on taxonomy of the species are given. The taxonomic studies revealed one new species, Salvia marashica, two new varieties, S. sericeo-tomentosa var. hatayica, S. cadmica var. bozkiriensis, one new combination, S. aucheri subsp. canescens and one new record, S. viscosa. As well as, S. sericeo-tomentosa and S. quezelii are rediscovered.

Registered Nurse (RN) turnover is costly for hospitals and healthcare facilities. The problem that healthcare administrators face today is their inability to retain nurses for long periods of time and the detrimental effects that come from the lack of retention. The purpose of this quantitative secondary data analysis is to explore the relationship between the retention of RNs and the geographic regions in which they work. The theoretical framework for this study was Barney's concept of viewing people as resources. Deidentified secondary data of RNs was utilized from the Healthforce Center at the University of California San Francisco to probe differences in retention rates between full-time and part-time RNs and the differences in retention rates between new graduate and specialty RNs in California geographic regions. The data was analyzed through descriptive and inferential statistical techniques to perform a t test of independent means. As a result, it was determined that there was no significance in geographic regions in California influencing the retention rates of full and part-time RNs neither was there a significant finding that geographic regions in California influence the retention rates of new graduate RNs or specialty nurses. It was concluded that the retention of RNs is determined by how well they are maintained and managed. A recommendation would be to investigate retention strategies that create longevity among RNs. This study can contribute to positive social change by having a cohesiveness that builds trust and creates a better work environment and positive outcomes for healthcare facilities which will reduce overall cost.