Effect of health on economic growth: A panel data study of developed and developing countries

In this paper, we investigate the effect of health, such as fertility rate, total (birth per woman), life expectancy at birth, total (years) and mortality rate, under-5(per 1000 live birth), as well as capital stock on the economic growth of 16 developed countries and 14 developing countries using Panel Unit Root and Panel Data Model for the period 1990-2010. In this investigation we have found that capital stock and life expectancy have a statistically significant positive effect on economic growth in both groups of countries. Mortality rate has a statistically significant negative effect on economic growth in both groups of countries. On the other hand fertility rate has a statistically significant positive effect on economic growth in developed countries while it has a statistically significant negative effect on economic growth in developing countries. Also the study results show that the fixed effects approach is more appropriate

Effect of health on economic growth: A panel data study of developed and developing countries

In this paper, we investigate the effect of health, such as fertility rate, total (birth per woman), life expectancy at birth, total (years) and mortality rate, under-5(per 1000 live birth), as well as capital stock on the economic growth of 16 developed countries and 14 developing countries using Panel Unit Root and Panel Data Model for the period 1990-2010. In this investigation we have found that capital stock and life expectancy have a statistically significant positive effect on economic growth in both groups of countries. Mortality rate has a statistically significant negative effect on economic growth in both groups of countries. On the other hand fertility rate has a statistically significant positive effect on economic growth in developed countries while it has a statistically significant negative effect on economic growth in developing countries. Also the study results show that the fixed effects approach is more appropriate

Effect of health on economic growth: A panel data study of developed and developing countries

In this paper, we investigate the effect of health, such as fertility rate, total (birth per woman), life expectancy at birth, total (years) and mortality rate, under-5(per 1000 live birth), as well as capital stock on the economic growth of 16 developed countries and 14 developing countries using Panel Unit Root and Panel Data Model for the period 1990-2010. In this investigation we have found that capital stock and life expectancy have a statistically significant positive effect on economic growth in both groups of countries. Mortality rate has a statistically significant negative effect on economic growth in both groups of countries. On the other hand fertility rate has a statistically significant positive effect on economic growth in developed countries while it has a statistically significant negative effect on economic growth in developing countries. Also the study results show that the fixed effects approach is more appropriate

Association between IL-8 (-251T/A) and IL-6 (-174G/C) Polymorphisms and Oral Cancer Susceptibility: A Systematic Review and Meta-Analysis

Background and objective: Inflammation and cell-mediated immunity can have significant roles in different stages of carcinogenesis. The present meta-analysis aimed to evaluate the association between the polymorphisms of IL-8 (-251T/A) and IL-6 (-174G/C) and the risk of oral cancer (OC). Methods: PubMed/MEDLINE, Web of Science, Cochrane Library, and Scopus databases were searched until December 18, 2020 without any restrictions. RevMan 5.3 software was used to calculate the results of forest plots (odds ratios (ORs) and 95% confidence intervals (CIs)); CMA 2.0 software was used to calculate funnel plots (Begg’s and Egger’s tests), and SPSS 22.0 was used for the meta-regression analysis. Moreover, trial sequential analysis was conducted to estimate the robustness of the results. Results: Eleven articles including twelve studies were selected for the meta-analysis. The pooled ORs for the association between IL-8 (-251T/A) polymorphism and the risk of OC in the models of A vs. T, AA vs. TT, TA vs. TT, AA + TA vs. TT, and AA vs. TT + TA were 0.97 (p = 0.78), 0.86 (p = 0.55), 0.78 (p = 0.37), 0.83 (p = 0.45), and 1.10 (p = 0.34), respectively. The pooled ORs IL-6 (-174G/C) polymorphism and the risk of OC in the models of C vs. G, CC vs. GG, GC vs. GG, CC + GC vs. GG, and CC vs. GG + GC were 1.07 (p = 0.87), 1.17 (p = 0.82), 1.44 (p = 0.38), 1.28 (p = 0.61), and 0.96 (p = 0.93), respectively. There was no association between IL-8 (-251T/A) polymorphism and OC susceptibility, but the C allele and GC and CC genotypes of IL-6 (-174G/C) polymorphism were associated with the risk of OC based on subgroup analyses, that is to say, the source of control and the genotyping method might bias the pattern of association. Conclusions: The meta-analysis confirmed that there was no association between the polymorphisms of IL-6 (-174G/C) and IL-8 (-251T/A) and the susceptibility of OC. However, the source of control and the genotyping method could unfavorably impact on the association between the polymorphisms of IL-6 (-174G/C) and the risk OC

A Comparative Analysis of Clinical Characteristics and Laboratory Findings of COVID-19 between Intensive Care Unit and Non-Intensive Care Unit Pediatric Patients: A Multicenter, Retrospective, Observational Study from Iranian Network for Research in Viral

Introduction: To date, little is known about the clinical features of pediatric COVID-19 patients admitted to intensive care units (ICUs). Objective: Herein, we aimed to describe the differences in demographic characteristics, laboratory findings, clinical presentations, and outcomes of Iranian pediatric COVID-19 patients admitted to ICU versus those in non-ICU settings. Methods: This multicenter investigation involved 15 general and pediatrics hospitals and included cases with confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection based on positive real-time reverse transcription polymerase chain reaction (RT-PCR) admitted to these centers between March and May 2020, during the initial peak of the COVID-19 pandemic in Iran. Results: Overall, 166 patients were included, 61 (36.7%) of whom required ICU admission. The highest number of admitted cases to ICU were in the age group of 1–5 years old. Malignancy and heart diseases were the most frequent underlying conditions. Dyspnea was the major symptom for ICU-admitted patients. There were significant decreases in PH, HCO3 and base excess, as well as increases in creatinine, creatine phosphokinase (CPK), lactate dehydrogenase (LDH), and potassium levels between ICU-admitted and non-ICU patients. Acute respiratory distress syndrome (ARDS), shock, and acute cardiac injury were the most common features among ICU-admitted patients. The mortality rate in the ICU-admitted patients was substantially higher than non-ICU cases (45.9% vs. 1.9%, respectively; p<0.001). Conclusions: Underlying diseases were the major risk factors for the increased ICU admissions and mortality rates in pediatric COVID-19 patients. There were few paraclinical parameters that could differentiate between pediatrics in terms of prognosis and serious outcomes of COVID-19. Healthcare providers should consider children as a high-risk group, especially those with underlying medical conditions

Q Fever Endocarditis in Northeast Iran

This report presents a case of chronic Q fever endocarditis. A 60-year-old male farmer and rancher was admitted to the hospital with symptoms of weight loss, fever, severe sweating, weakness, and anorexia. PCR was negative for C. burnetii in the blood sample, but phase I and II IgG antibodies against C. burnetii were positive (1 : 16384 and 1 : 2048, respectively) by the indirect immunofluorescent assay (IFA). According to the adjusted Duke criteria, Q fever endocarditis was confirmed, and the patient was successfully treated with doxycycline and hydroxychloroquine

Nonlinear vibration analysis of a rotor supported by magnetic bearings using homotopy perturbation method

In this paper, the effects of nonlinear forces due to the electromagnetic field of bearing and the unbalancing force on nonlinear vibration behavior of a rotor is investigated. The rotor is modeled as a rigid body that is supported by two magnetic bearings with eight-polar structures. The governing dynamics equations of the system that are coupled nonlinear second order ordinary differential equations (ODEs) are derived, and for solving these equations, the homotopy perturbation method (HPM) is used. By applying HPM, the possibility of presenting a harmonic semi-analytical solution, is provided. In fact, with equality the coefficient of auxiliary parameter (p), the system of coupled nonlinear second order and non-homogenous differential equations are obtained so that consists of unbalancing effects. By considering some initial condition for displacement and velocity in the horizontal and vertical directions, free vibration analysis is done and next, the forced vibration analysis under the effect of harmonic forces also is investigated. Likewise, various parameters on the vibration behavior of rotor are studied. Changes in amplitude and response phase per excitation frequency are investigated. Results show that by increasing excitation frequency, the motion amplitude is also increases and by passing the critical speed, it decreases. Also it shows that the magnetic bearing system performance is in stable maintenance of rotor. The parameters affecting on vibration behavior, has been studied and by comparison the results with the other references, which have a good precision up to 2nd order of embedding parameter, it implies the accuracy of this method in current research

Association between IL-8 (-251T/A) and IL-6 (-174G/C) Polymorphisms and Oral Cancer Susceptibility: A Systematic Review and Meta-Analysis

Inflammation and cell-mediated immunity can have significant roles in different stages of carcinogenesis. The present meta-analysis aimed to evaluate the association between the polymorphisms of; IL-8 (-251T/A); and; IL-6 (-174G/C); and the risk of oral cancer (OC).; PubMed/MEDLINE, Web of Science, Cochrane Library, and Scopus databases were searched until December 18, 2020 without any restrictions. RevMan 5.3 software was used to calculate the results of forest plots (odds ratios (ORs) and 95% confidence intervals (CIs)); CMA 2.0 software was used to calculate funnel plots (Begg's and Egger's tests), and SPSS 22.0 was used for the meta-regression analysis. Moreover, trial sequential analysis was conducted to estimate the robustness of the results.; Eleven articles including twelve studies were selected for the meta-analysis. The pooled ORs for the association between; IL-8 (-251T/A); polymorphism and the risk of OC in the models of A vs. T, AA vs. TT, TA vs. TT, AA + TA vs. TT, and AA vs. TT + TA were 0.97 (; p; = 0.78), 0.86 (; p; = 0.55), 0.78 (; p; = 0.37), 0.83 (; p; = 0.45), and 1.10 (; p; = 0.34), respectively. The pooled ORs; IL-6 (-174G/C); polymorphism and the risk of OC in the models of C vs. G, CC vs. GG, GC vs. GG, CC + GC vs. GG, and CC vs. GG + GC were 1.07 (; p; = 0.87), 1.17 (; p; = 0.82), 1.44 (; p; = 0.38), 1.28 (; p; = 0.61), and 0.96 (; p; = 0.93), respectively. There was no association between; IL-8 (-251T/A); polymorphism and OC susceptibility, but the C allele and GC and CC genotypes of; IL-6 (-174G/C); polymorphism were associated with the risk of OC based on subgroup analyses, that is to say, the source of control and the genotyping method might bias the pattern of association.; The meta-analysis confirmed that there was no association between the polymorphisms of; IL-6 (-174G/C); and; IL-8 (-251T/A); and the susceptibility of OC. However, the source of control and the genotyping method could unfavorably impact on the association between the polymorphisms of; IL-6 (-174G/C); and the risk OC