Caryophyllaceae is the fifth largest Iranian plant family in terms of number of species where most of its species are Irano-Turanian. About 30% of these species are endemic of Iran. There are continuously uncertainties regarding the circumscription of genera, and especially because of new molecular and phylogenetic studies that in many cases do not confirm the traditional generic circumscriptio...

Correspondence: Gary Rolfe, School of Health Science, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, UK. E-mail: [email protected] ROLFE G. (2006) Journal of Advanced Nursing 53(3), 304–310 Validity, trustworthiness and rigour: quality and the idea of qualitative research Aim. In this paper, I call into question the widely-held assumption of a single, more or less unified par...

Application of qualitative research in management (why, when and how) Qualitative research has been increasingly used in all sciences. In this paper we will discuss about the applications of qualitative research methods in management sciences. The differences between quantitative and qualitative researches will be clarified and the statistical methods which are suitable for such researches will...

All heptoses produce with orcinol in dilute HCl two characteristic colored compounds which differ greatly in their absorption spectra. Three different modifications of this reaction were found useful. Procedure i--To 2 cc. of a solution containing 20 to 100 y per cc. of ketoheptose or 5 times as much of an aldoheptose is added 0.4 cc. of concentrated HCl, sp. gr. 1.19, in a test-tube with a gro...

Research indicates that service utilization rates in migrant groups are low, although levels of distress appear high when compared with host populations. This paper systematically reviews quantitative and qualitative literature on factors associated with attitudes toward seeking psychological help among working age migrants. Data were extracted from MEDLINE, EMBASE, PsycINFO, Science Direct and...

The purpose of this research review is to open dialog about quantitative, qualitative, and mixed research methods in engineering education research. Our position is that no particular method is privileged over any other. Rather, the choice must be driven by the research questions. For each approach we offer a definition, aims, appropriate research questions, evaluation criteria, and examples fr...

Systems of selective distribution involve essentially two elements. First, the distribution does not supply every dealer, retailer, or wholesaler who is willing to sell the products in question. Only those who meet certain criteria are appointed as authorized retailers or wholesalers. Second, authorized dealers may sell only to other authorized dealers, or, in the case of retailers, to users. I...

OBJECTIVE The objectives were to critically appraise the medical education research literature of 2015 and review the highest-quality quantitative and qualitative examples. METHODS A total of 434 emergency medicine (EM)-related articles were discovered upon a search of ERIC, PsychINFO, PubMED, and SCOPUS. These were both quantitative and qualitative in nature. All were screened by two of the ...