10 research outputs found
Food Security Status of Elders and Its Related Factors in Arak in 2012
Abstract
Introduction: Today, increased life expectancy, reduced mortality rates, and improved health conditions caused to an increase in number of elderly people, as one of the vulnerable groups in the society. On the other hand, food security is one of the necessary prerequisites for the health of the elderly people. Therefore, the present study intended to investigate the food security status of the elderly people as well as its related factors.
Methods: This descriptive cross-sectional study was conducted in 2012 consisting of 300 elderly people of Arak city. The study data were collected through FaCPS-FSSM food security questionnaire validated for the elderly via conducting interviews. In order to analyze the study data, SPSS software was utilized applying Chi square test, independent t–test, Pearson's correlation and regression.
Results: The results of the present study revealed that 39.3% of the elderly people had a full food security, 29 % reported food insecurity without hunger, 20.7% showed moderate food insecurity and 11% had severe food insecurity. Moreover, a significant relationship was detected between education level, occupation, marital status, body mass index, disease and household dimension with the food security (p <%5).
Conclusions: Considering that close to 60.7% of the studied elderly revealed some degree of food insecurity as well as the various factors significantly associated with this problem in the present study, this problem in this level of vulnerable population demonds to be attended more than ever
Comparative study of individual and traditional bedside metered-dose inhaler use and group teaching with video demonstration
Zur photometrischen Titration von Arsenat mit Thoriumnitrat im Mikrogramm- und Milligrammbereich
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Tuning the electronic and the crystalline structure of LaBi by pressure: From extreme magnetoresistance to superconductivity
Physical Review B.
Volume 95, Issue 1, 10 January 2017, Article number 014507.Extreme magnetoresistance (XMR) in topological semimetals is a recent discovery which attracts attention due to its robust appearance in a growing number of materials. To search for a relation between XMR and superconductivity, we study the effect of pressure on LaBi. By increasing pressure, we observe the disappearance of XMR followed by the appearance of superconductivity at P≈3.5 GPa. We find a region of coexistence between superconductivity and XMR in LaBi in contrast to other superconducting XMR materials. The suppression of XMR is correlated with increasing zero-field resistance instead of decreasing in-field resistance. At higher pressures, P≈11 GPa, we find a structural transition from the face-centered cubic lattice to a primitive tetragonal lattice, in agreement with theoretical predictions. The relationship between extreme magnetoresistance, superconductivity, and structural transition in LaBi is discussed. © 2017 American Physical Society