11 research outputs found

    Horava-Lifshitz early universe phase transition beyond detailed balance

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    The early universe is believed to have undergone a QCD phase transition to hadrons at about 10μs10\mu s after the big bang. We study such a transition in the context of the non-detailed balance Horava-Lifshitz theory by investigating the effects of the dynamical coupling constant λ\lambda in a flat universe. The evolution of the relevant physical quantities, namely the energy density ρ\rho, temperature TT, scale factor aa and the Hubble parameter HH is investigated before, during and after the phase transition, assumed to be of first order. Also, in view of the recent lattice QCD simulations data, we study a cross-over phase transition of the early universe whose results are based on two different sets of lattice data.Comment: 14 pages, 11 figures, to appear in Eur. Phys. J. C. arXiv admin note: text overlap with arXiv:0912.2541, arXiv:0807.3066, arXiv:1005.3508, arXiv:1011.4230 by other author

    Evaluating the Anti-Leech Effects of Methanolic Extracts of Peganum harmala L. and Olea europaea L. on Limnatis nilotica. World's Vet

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    ABSTRACT Leeches had several complications such as pain, itching, inflammation, severe anemia, short-term bleeding, hypersensitivity, and anaphylactic reactions in their hosts. Harmal Peganum harmala L. is used as an analgesic and anti-inflammatory agent and it has antibacterial activity. Olive Olea europaea L. has antibacterial, anti-viral, hypoglycemic and the relaxation of blood vessels properties. Antioxidant properties of olive also had been reported. This study was carried out to detect the effects of methanolic extracts of P. harmala L. and O. europaea L. on L. nilotica immature form. In 2011, 55 immature leeches collected from the southern area of Ilam province were prepared. The methanolic extract of O. europaea L and P. harmala L. were compared with levamisole as the control drug. Distilled water was evaluated as the placebo group which investigated L. nilotica using anti-leech assay. Then extract and drugs were added and their effects were screened for 720 min and time to paralyze, kill and death of each leech was recorded. The results showed that olive methanolic extractions (600 and 300mg) could kill the leeches in an average time of 145±77.57 and171±33.28 min, respectively. An average death time for levamisole was found to be 15±7.49 min. The highest effectiveness was found for levamisole at dose 300 mg. Methanol extracts of the Harmal (300 and 600 μg/m) and springs water showed no anti-leech. In sum, olive plant could use for anti Limnatis nilotica expenditure

    National guidelines for cognitive assessment and rehabilitation of Iranian traumatic brain injury patients

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    Background: Individuals with moderate to severe traumatic brain injury (TBI) often have prolonged cognitive impairments, resulting in long-term problems with their real-life activities. Given the urgent need for evidence-based recommendations for neuropsychological management of Iranian TBI patients, the current work aimed to adapt eligible international guidelines for cognitive assessment and rehabilitation of the TBI patients in Iran. Methods: The project was led by an executive committee, under the supervision of the Iranian Ministry of Health and Medical Education (MOHME). Following a systematic literature search and selection process, four guidelines were included for adaptation. Clinical recommendations of the source guidelines were tabulated as possible clinical scenarios for 90 PICO clinical questions covering all relevant phases of care. After summing up the scenarios, our initial list of recommendations was drafted according to the Iranian patients� conditions. The final decision-making, with the contribution of a national interdisciplinary panel of 37 experts from across the country, was conducted in two rounds using online and offline survey forms (Round 1), and face-to-face and telephone meetings (Round 2). Results: A total of 63 recommendations in six sections were included in the final list of recommendations, among which 24 were considered as key recommendations. In addition, some of the recommendations were identified as fundamental, meaning that proper implementation of the other recommendations is largely dependent on their implementation. Conclusion: Iranian health policy makers and rehabilitation program managers are recommended to address some fundamental issues to provide the necessary infrastructure to set up an efficient cognitive rehabilitation service system. © 2020 Academy of Medical Sciences of I.R. Iran. All rights reserved

    The evaluation of diagnostic and predictive values of helicobacter pylori stool antigen test in Iranian patients with dyspepsia

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    Background and Objectives: Iran, as a developing country, is experiencing high burdens of Helicobacter pylori (Hp)-associated non-communicable diseases. Hp stool antigen test (HpSA) is widely used as an inexpensive and feasible noninvasive method to diagnose Hp infection, instead of invasive approaches. The current study aimed at evaluating the diagnostic and predictive values of HpSA test for Hp infection in Iranian patients with dyspepsia. Methods: The current cross sectional study was performed on 100 patients with dyspepsia. Gastric mucosal specimens were taken, processed, and examined according to the standard protocols. Simultaneously, stool samples were obtained and sent to laboratory for further analyses. Hp stool antigen titers were assessed using enzyme-linked immunosorbent assay (ELISA) technique. Results: Stool antigen titers were not associated with gender (P-value=0.284), but correlated to age (r=0.213, P-value=0.034). Considering 0.385 as a cutoff point, the HpSA test had 80.4 sensitivity and 85.7 specificity. Conclusion: Based on cost-effectiveness of HpSA test, the current study findings corroborated the use of HpSA test to detect and follow-up patients with Hp infection, as an alternative method to detect Hp rather than invasive procedures. © 2017, IRANIAN JOURNAL OF PATHOLOGY

    The evaluation of diagnostic and predictive values of helicobacter pylori stool antigen test in Iranian patients with dyspepsia

    No full text
    Background and Objectives: Iran, as a developing country, is experiencing high burdens of Helicobacter pylori (Hp)-associated non-communicable diseases. Hp stool antigen test (HpSA) is widely used as an inexpensive and feasible noninvasive method to diagnose Hp infection, instead of invasive approaches. The current study aimed at evaluating the diagnostic and predictive values of HpSA test for Hp infection in Iranian patients with dyspepsia. Methods: The current cross sectional study was performed on 100 patients with dyspepsia. Gastric mucosal specimens were taken, processed, and examined according to the standard protocols. Simultaneously, stool samples were obtained and sent to laboratory for further analyses. Hp stool antigen titers were assessed using enzyme-linked immunosorbent assay (ELISA) technique. Results: Stool antigen titers were not associated with gender (P-value=0.284), but correlated to age (r=0.213, P-value=0.034). Considering 0.385 as a cutoff point, the HpSA test had 80.4 sensitivity and 85.7 specificity. Conclusion: Based on cost-effectiveness of HpSA test, the current study findings corroborated the use of HpSA test to detect and follow-up patients with Hp infection, as an alternative method to detect Hp rather than invasive procedures. © 2017, IRANIAN JOURNAL OF PATHOLOGY
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