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Aims and objectives: To examine the relationship between significant others' expected and received knowledge and their background characteristics in three Mediterranean countries (Cyprus, Greece, Spain), all of which deal with economic restrictions, have similar social support systems with the family members acting as family caregivers, and cultural similarities. Background: Significant others' role is a key element in the older patients' postoperative recovery. However, people who take care of persons older than 65 years, as persons undergoing arthroplasty, are usually old themselves and need special support. Design: Multicentre, descriptive, correlational study. Methods: Data were collected preoperatively from 189 and postoperatively from 185 significant others using the Knowledge Expectations and the Received Knowledge of Significant Others Scales during 2010‐2012. Results: Approximately one‐fourth of the significant others were older than 65 years. Their knowledge expectations were not adequately addressed in any of the countries; they expected to be educated more on biophysiological issues and received the lowest knowledge regarding financial issues. The highest difference between expected and received knowledge was found in Greece and the lowest in Cyprus. Significant others may be less prepared for dealing with situations at home due to the knowledge difference between expected and received knowledge. Conclusions: Significant others receive less education comparing to what they expect; therefore, they are not prepared for dealing with problematic situations during their old relative's recovery. This is especially important in Mediterranean countries, where family members often provide patient care. Implications for practice: As health care is changing towards active participation of patients and family, it is important that nurses provide the education needed, as lower education may lead to poor patient outcomes and higher education may lead to significant others' anxiety. Nurses may keep in mind that older significant others do not report higher knowledge difference, but may have lower expectations. [ABSTRACT FROM AUTHOR]

BACKGROUND Eruca sativa (rocket) contains a wide range of compounds with nutraceutical and organoleptical properties. This research aimed to characterise the nutraceutical interest of four rocket accessions by analysis of glucosinolates, isothiocyanates, phenolics, carotenoids and carbohydrates. Different methods based on chromatographic separation with ultraviolet absorbance or mass spectrometry detection were used. RESULTS The total content of glucosinolates ranged from 14.02 to 28.24 µmol g−1 of dry weight. Glucoraphanin represented up to 52% of the total glucosinolates in leaves of one accession. Accessions showed differences in the hydrolysis of glucoraphanin to the isothiocyanate sulforaphane. No correlation between these compounds was observed, which insisted differences in the myrosinase activity within accessions. Rocket leaves had variable phenolic profiles represented by quercetin-3-glucoside, rutin, myricetin, quercetin and ferulic and p-coumaric acids. A high variability was observed for the total carotenoids ranged from 16.2 to 275 µg g−1 with lutein as the main carotenoid. Glucose was the predominant sugar, representing >70% of the total soluble carbohydrates. CONCLUSIONS Some accessions could be candidates for future breeding programmes because of their pattern of beneficial compounds for human health. However, further research is essential to evaluate the biological activity of these accessions before designing functional food. © 2013 Society of Chemical Industry [ABSTRACT FROM AUTHOR]