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Mozaheb Z.,Mashhad University of Medical Sciences | Aledavood A.,Mashhad University of Medical Sciences | Farzad F.,Azad University of Mashhad
Pan African Medical Journal | Year: 2012

Background: The role of dietary factors in the epidemiology of Non-Hodgkin's lymphoma (NHL) remains largely undefined. Dietary habits may play a role in the etiology of NHL by influencing the immune system. Methods: Dietary patterns and the risk of NHL were analyzed in a case control study; including 170 NHL cases and 190 controls. All subjects completed a validated food-frequency questionnaire. The dietary pattern was investigated separately and in nine nutritional groups. Crosstab tables were used to estimate the odds ratios (OR), and Ptrend. Results: Consumption of highest versus lowest quartile of proteins (OR, 8.088 Ptrend=0.000), fats (OR, 6.17 Ptrend=0.000) and sweets (OR, 8.806 Ptrend=0.000) were associated with a significantly increased NHL risk. The inverse association was found for fresh fruits (OR, 0.117 Ptrend=0.000) and vegetables (OR, 0.461 Ptrend =0.010). Conclusion: An association between dietary intake and the risk of NHL is biologically plausible due to immunosuppressive effects of fat and animal proteins, and antioxidant properties of vegetables and fruits. © Zahra Mozaheb et al.

Kashefi F.,North Khorasan University of Medical Sciences | Ziyadlou S.,Shiraz University of Medical Sciences | Khajehei M.,Curtin University Australia | Ashraf A.R.,Shiraz University of Medical Sciences | And 2 more authors.
Complementary Therapies in Clinical Practice | Year: 2010

Objective: We conducted this study to assess the effect of acupressure at the Sanyinjiao point on primary dysmenorrhea. Methods: Eighty-six students participated in the study. All participants met the inclusion criteria. The study group received acupressure at Sanyinjiao point, while the control received sham acupressure. The severity of dysmenorrhea was assessed at the following time periods: prior to the intervention, 30. min, 1, 2 and 3. h following the intervention. Data were analyzed using SPSS. Results: The acupressure caused decline in the severity of dysmenorrhea immediately after intervention in both groups during their first menstrual cycle, although, there difference was not significant (p>0.05). In addition, during the same cycle, the severity of the dysmenorrhea decreased more in study group rather than control group at 30. min, 1, 2 and 3. h after intervention (p<0.05). During the second menstrual cycle, acupressure made dysmenorrhea reduced in both study and control groups; however, the decline was more salient among participants of the study group at all stages after the intervention (p<0.05). Conclusions: Acupressure at Sanyinjiao point can be an effective, feasible, cost-effective intervention for improving primary dysmenorrhea. © 2010 Elsevier Ltd.

Fazeli A.,Alzahra University | Oskooie H.A.,Alzahra University | Beheshtiha Y.S.,Alzahra University | Heravi M.M.,Alzahra University | And 2 more authors.
Monatshefte fur Chemie | Year: 2013

A simple and solvent-free route for the synthesis of 5-substituted 1H-tetrazoles is reported. In this method, 5-substituted 1H-tetrazoles are synthesized from nitriles and [bmim]N3 with heteropolyacid (H 3PW12O40) as a catalyst under solvent-free conditions. © 2013 Springer-Verlag Wien.

Yaghouby F.,University of Kentucky | Ayatollahi A.,Iran University of Science and Technology | Bahramali R.,University of Applied Science and Technology of Iran | Yaghouby M.,Azad University of Mashhad
Expert Systems | Year: 2012

In this study, two variants of genetic programming, namely linear genetic programming (LGP) and multi-expression programming (MEP) are utilized to detect atrial fibrillation (AF) episodes. LGP- and MEP-based models are derived to classify samples of AF and Normal episodes based on the analysis of RR interval signals. A weighted least-squares (WLS) regression analysis is performed using the same features and data sets to benchmark the models. Another important contribution of this paper is identification of the effective time domain features of heart rate variability (HRV) signals upon an improved forward floating selection (IFFS) analysis. The models are developed using MIT-BIH arrhythmia database. The diagnostic performances of the LGP and MEP classifiers are evaluated through receiver operating characteristics (ROC) analysis. The results indicate that the LGP and MEP models are able to diagnose the AF arrhythmia with an acceptable high accuracy. The proposed models have significantly better diagnosis performances than the regression and several models found in the literature. © 2011 Blackwell Publishing Ltd.

Parvaneh V.,Shahrood University of Technology | Parvaneh V.,Azad University of Mashhad | Shariati M.,Shahrood University of Technology
Acta Mechanica | Year: 2011

In this paper, the influence of various vacancy and Stone-Wales defects on the Young's modulus of single-walled carbon nanotubes is investigated via a structural model. Dispersion in experimental results is the motivation for this work. Our results show that the type of method used (loading and boundary condition) for the prediction of the Young's modulus of SWCNTs is very important for the results. The effect of different types of defects on the Young's modulus is also studied for zigzag and armchair nanotubes with various aspect ratios (length/diameter). A comparison of our results with those of experimental methods indicates that for the exact prediction of the Young's modulus of SWCNTs we need to apply the correct conditions. © 2010 Springer-Verlag.

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