128 results on '"Izadi F"'
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2. On a Family Of Elliptic Curves With Positive Rank arising from Pythagorean Triples
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Izadi, F. A., Nabardi, K., and Khoshnam, Foad
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Mathematics - Number Theory - Abstract
The aim of this paper is to introduce a new family of elliptic curves in the form of $y^2=x(x-a^2)(x-b^2)$ that have positive ranks. We first generate a list of pythagorean triples $(a,b,c)$ and then construct this family of elliptic curves. It turn out that this new family have positive ranks and search for the upper bound for their ranks.
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- 2010
3. A new family of elliptic curves with positive ranks arising from the Heron triangles
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Izadi, F. A., Khoshnam, Foad, and Nabardi, K.
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Mathematics - Number Theory - Abstract
The aim of this paper is to introduce a new family of elliptic curves with positive ranks. These elliptic curves have been constructed with certain rational numbers, namely a, b, and c as sides of Heron triangles having rational areas $k$. It turned out that the torsion groups of this family are of the form $\frac{\Bbb{Z}}{2\Bbb{Z}}\times \frac{\Bbb{Z}}{2\Bbb{Z}}$ and also the rank is positive.
- Published
- 2010
4. Unveiling of the Anti-Tumor Activity of Green Synthesized Zinc Nanoparticles against Ehrlich Solid Tumors in Mice.
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Izadi, F. and Ramalakshmi, S.
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GLUTATHIONE peroxidase ,ANTINEOPLASTIC agents ,TUMOR necrosis factors ,CARCINOEMBRYONIC antigen ,MICE ,NANOPARTICLES - Abstract
Cancer, a disease threatening human life, is caused by the disturbance of the normal cell cycle, which results in the spontaneous growth of normal and malignant cells, the lack of differentiation between the two, and consequently malignant growths. Nowadays, various synthetic agents are applied for cancer therapy; nevertheless, reports have confirmed that these chemical agents are associated with various adverse complications. This experimental study was designed to assess the antitumor activities of zinc nanoparticles (ZnNPs) green synthesized by the Astragalus maximus (A. maximus) extract against Ehrlich solid tumors (EST) in mice. To induce the EST model, 0.2 ml of cell suspension was intramuscularly injected into the right thigh of the mice. Five days post-injection, the mice were assigned to five groups (eight mice each): EST mice treated with normal saline, EST mice orally treated with ZnNPs 10 mg/kg/day, EST mice orally treated with ZnNPs 25 mg/kg/day, and EST mice orally treated with ZnNPs 50 mg/kg/day for 14 days. Afterward, the volume of the tumor, tumor growth inhibition, body weight, tumor markers, oxidant/antioxidant markers, and tumor necrosis factor-alpha level were assessed in the tested mice. The results showed that after the treatment of EST mice with cyclophosphamide and ZnNPs at 10, 25, and 50 mg/kg, the volume of the tumor, and the serum amount of tumor markers (alpha-fetoprotein and carcinoembryonic antigen) were significantly reduced (P<0.001). It was found that ZnNPs at 10, 25, and 50 mg/kg markedly declined oxidative markers and increased the level of antioxidant enzymes (superoxide dismutase and glutathione peroxidase), compared to the control group, which received normal saline (P<0.001). To conclude, this study reported the unveiling of the anti-tumor activity of ZnNPs green synthesized by the A. maximus extract, mainly at a dose of 50 mg/kg against EST in mice. However, further supplementary studies are required to clarify all the anti-tumor aspects of these nanoparticles. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Assessing Prospective Teachers' Geometric Transformations Thinking: A Van Hiele Theory-Based Analysis with Eye Tracking Cognitive Science Method.
- Author
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Ghorbani, M., Izadi, F. S., Roshan, S. S., and Ebrahimpour, R.
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TEACHERS ,EYE tracking ,COGNITIVE science ,ROTATIONAL symmetry ,AUGMENTED reality ,TEACHING experience - Abstract
Background and Objectives: Geometric transformations have played a crucial role throughout history in various aspects of human life. Symmetry is one of the important concepts in school mathematics. Students' academic performance is intricately connected to the knowledge and skills of their educators. Recognizing the importance of prospective teachers (PTs) as future educators, in the initial stage, the aim of this research is to assess and analyze the levels of geometric thinking among prospective elementary teachers (PETs) utilizing Van Hiele's theory. Subsequently, the research seeks to delve into the thinking process and gaze patterns of prospective mathematics education teachers (PMETs) using the cognitive science method of eye tracking. Materials and Methods: This study focuses on investigating and evaluating the thinking of geometric transformations and problem-solving skills among prospective teachers (PTs). The research method employed a combined survey method, encompassing two distinct tests conducted on two groups of PTs. The accessible statistical sample includes 50 participating PETs and 21 participating PEMTs from Iran. The PETs of Farhangian University of Isfahan were divided into two groups: 42 students who had not learned the concept of geometric transformations in their undergraduate program (NPGT), and 8 students who had learned this concept in their undergraduate program (PGT). To assess the level of geometric thinking among participants, a self-made geometric test based on Van Hiele's theory was utilized. The test reliability was assessed using Cronbach's alpha coefficient, which yielded a value of 0.68. Additionally, the validity of the test has been confirmed by some professors. In evaluating geometric thinking, a cognitive science method was performed. This method involved designing a psychophysical experiment and recording eye movements of the PMETs. The psychophysical experiment part was conducted in the computer laboratory of Shahid Rajaee Teacher Training University, Tehran, and was performed by Eyelink device and MATLAB software on student teachers of mathematics education of this university. Findings: The results of the research show that students recognize the shape with symmetry as a symmetrical shape, but they perform poorly in determining the type of symmetry of symmetrical shapes, especially when a shape has rotational symmetry or oblique axial symmetry or a combination of several types of symmetry. In the first stage, the evaluation of PETs responses showed that 34% of them were in the first level and 18% in the second level of Van Hiele. The cognitive findings revealed that PMETs demonstrated superior performance in recognizing symmetries characterized by a single type of symmetry, in contrast to shapes involving combinations of various symmetries. Examining the recorded eye-tracking images of the students revealed a difference in gaze patterns between the groups that gave correct and incorrect answers. In addition, this difference is also evident among images with different symmetries (reflection, central, rotational). Conclusions: The current research confirms the weakness of students in identifying the type of symmetry in symmetrical shapes. It also emphasizes the need to pay more attention to the training of PTs during their academic years. To address this, it is suggested to revise the curriculum concerning geometric transformations in the university courses for PTs training, additionally, the utilization of software such as Augmented Reality (AR) and GeoGebra can contribute to enhancing cognitive and visual abilities of PTs in comprehending the concept of symmetry. [ABSTRACT FROM AUTHOR]
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- 2024
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6. . China’s Belt and Road Initiative amid Obama’s Negligence and Trump’s pessimism
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Abdollahpour, B., primary, Falarti, M. M., additional, and Izadi, F., additional
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- 2022
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7. O086 Genomic analysis of response to neoadjuvant chemotherapy in oesophageal adenocarcinoma
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Breininger, SP, primary, Izadi, F, additional, Sharpe, B, additional, Secrier, M, additional, Gibson, J, additional, Walker, R, additional, Rahman, S, additional, Devonshire, G, additional, Lloyd, M, additional, Walters, Z, additional, Fitzgerald, R, additional, Rose-Zerilli, M, additional, and Underwood, T, additional
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- 2022
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8. Hexachlorobenzene-negative ion formation in electron attachment experiments
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Kumar, S., primary, Izadi, F., additional, Ončák, M., additional, Limão-Vieira, P., additional, and Denifl, S., additional
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- 2022
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9. O29: PREDICTING RESPONSE TO NEOADJUVANT THERAPY IN OESOPHAGEAL ADENOCARCINOMA PRE-TREATMENT BIOPSIES
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Lloyd, M, primary, Izadi, F, additional, Rahman, S, additional, Walker, R, additional, Hayden, A, additional, Harrington, J, additional, Grace, B, additional, Horne, J, additional, Machado, M, additional, and Underwood, T, additional
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- 2021
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10. Exploring Potential Biomarkers Underlying Pathogenesis of Alzheimer’s Disease by Differential Co-expression Analysis
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Izadi, F. and Mohammad Hasan Soheilifar
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Computational biology ,Original Article ,Dementia ,Alzheimer’s disease - Abstract
Background: Alzheimer’s Disease (AD) is the most common form of dementia in the elderly. Due to the facts that biological causes of AD are complex in addition to increasing rates of AD worldwide, a deeper understanding of AD etiology is required for AD treatment and diagnosis. Methods: To identify molecular pathological alterations in AD brains, GSE36980 series containing microarray data samples from temporal cortex, frontal cortex and hippocampus were downloaded from Gene Expression Omnibus (GEO) database and valid gene symbols were subjected to building a gene co-expression network by a bioinformatics tool known as differential regulation from differential co-expression (DCGL) software package. Then, a network-driven integrative analysis was performed to find significant genes and underlying biological terms. Results: A total of 17088 unique genes were parsed into three independent differential co-expression networks. As a result, a small number of differentially co-regulated genes mostly in frontal and hippocampus lobs were detected as potential biomarkers related to AD brains. Ultimately differentially co-regulated genes were enriched in biological terms including response to lipid and fatty acid and pathways mainly signaling pathway such as G-protein signaling pathway and glutamate receptor groups II and III. By conducting co-expression analysis, our study identified multiple genes that may play an important role in the pathogenesis of AD. Conclusion: The study aimed to provide a systematic understanding of the potential relationships among these genes and it is hoped that it could aid in AD biomarker discovery.
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- 2018
11. Theory of Sequences
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Izadi, F. A., primary
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- 2009
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12. Appendix A 2-Variable Discrete Analysis
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Izadi, F. A., primary
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- 2009
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13. Discrete Calculus
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Izadi, F. A., primary
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- 2009
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14. Boundary Value Problems
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Izadi, F. A., primary
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- 2009
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15. 514 CANCER CELLS PERSIST AFTER COMPLETE PATHOLOGICAL RESPONSE IN ESOPHAGEAL ADENOCARCINOMA
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Walker, R, primary, Harrington, J, additional, Grace, B, additional, Sharpe, B, additional, Breininger, S, additional, Izadi, F, additional, Kelly, J, additional, Byrne, J, additional, Noble, F, additional, Rose-Zerilli, M, additional, and Underwood, T, additional
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- 2020
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16. 474 GENOMIC ANALYSIS OF RESPONSE TO NEOADJUVANT CHEMOTHERAPY IN ESOPHAGEAL ADENOCARCINOMA
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Izadi, F, primary, Devonshire, G, additional, Walker, R, additional, Lloyd, M, additional, Gibson, J, additional, Secrier, M, additional, Fitzgerald, R, additional, Rose-Zerilli, M, additional, and Underwood, T, additional
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- 2020
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17. Relationship between Body Mass Index, Waist-to-Hip Ratio, and Serum Lipid Concentrations and Thyroid-Stimulating Hormone in the Euthyroid Adult Population
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Rahbar, A. R., Mohammadreza Kalantarhormozi, Izadi, F., Arkia, E., Rashidi, M., Pourbehi, F., Daneshifard, F., and Rahbar, A.
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endocrine system ,lcsh:R5-920 ,endocrine system diseases ,Brief Report ,Thyrotropin ,Obesity ,lcsh:Medicine (General) ,hormones, hormone substitutes, and hormone antagonists ,Dyslipidemias - Abstract
The aim of this cross-sectional study was to investigate the relationship between body mass index (BMI), waist-to-hip ratio, and lipid parameters and serum thyroid-stimulating hormone (TSH) levels in healthy euthyroid individuals. This cross-sectional study was conducted between June 1st and July 20th, 2013, at Bushehr University of Medical Sciences. One hundred forty euthyroid individuals were divided into 2 groups: a high-TSH group (TSH between 2.0 and 5.5 mIU/L, n=67) and a low-TSH group (TSH between 0.3 and 2.0 mIU/L, n=73). After overnight fast, total cholesterol, triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), TSH, thyroxine (T4), and triiodothyronine (T3) were measured. Height and weight were measured with a stadiometer, and BMI was calculated as weight in kilograms divided by the square of height in meters. Waist-to-hip ratio was determined as waist circumference divided by hip circumference. The simple independent t-test and a general linear model were used for statistical analysis. All statistical analyses were done using the SPSS, version 15, statistical software package. BMI and LDL-C were significantly higher in the high-TSH group than in the low-TSH group after adjustment for age, sex, calorie intake, total fat and carbohydrate intakes, and physical activity. No significant differences were found between the groups in TG, cholesterol, and HDL-C. The association between TSH levels andT4 was significant. Individuals with TSH levels at the upper limit of normality might be at risk of hypercholesterolemia and obesity.
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- 2017
18. Peripheral neuropathy in type 2 diabetes mellitus in Isfahan, Iran: prevalence and risk factors
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Janghorbani, M., Rezvanian, H., Kachooei, A., Ghorbani, A., Chitsaz, A., Izadi, F., and Amini, M.
- Published
- 2006
19. Three Dimensional FSI Modelling of Sulcus Vocalis Disorders of Vocal Folds
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Vazifehdoostsaleh, A., primary, Fatouraee, N., additional, Navidbakhsh, M., additional, and Izadi, F., additional
- Published
- 2018
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20. The role of Human papilloma virus (HPV) genotyping in recurrent respiratory papillomatosis in Rasoul Akram Hospital
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Izadi, F., Hamkar, R., Ghanbari, H., Abdolmotallebi, F., and Hesam Jahandideh
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Respiratory tract diseases ,Human papillomavirus ,lcsh:R5-920 ,lcsh:Medicine (General) ,Original Research ,Papillomatosis ,Laryngeal neoplasms - Abstract
AbstractBackground: The most common laryngeal mass in children is recurrent respiratory papillomatosis (RRP). Studies have attempted to correlate viral typing and its aggressiveness.Method: 29 patients with histologically confirmed RRP enrolled in adjuvant therapies. Patients underwent several surgical interventions.Results: HPV genotyping demonstrated 45% HPV-6 and 55% HPV-11. The mean age at the first surgical intervention was 52.39 months (SD=102.28) (range from 4 months to 426 months). The mean number of surgical intervention was 10.39 (SD=7.76) (range from 2 to 30). The mean time of surgical intervals was 4.63 months (SD=4.02) (range from 2 to 24 months). In fourteen patients (48%) tracheotomy was done. All patients who had tracheotomy received alpha-interferon. One of our cases was a male who had pulmonary extension with HPV-6.Conclusion: A review of patients with RRP was regarding to HPV genotyping and need for adjuvant therapy and tracheostomy. Mean number of surgical procedure was 10/40 and nearly fourteen patients (48%) need to tracheotomy. The clinical differences between HPV6 and HPV11 disease may not be accurately predictable. Patients with less age and with HPV-11 seemed to have more severe problems, but these differences were not statistically significant which needs much more investigations for reasonable starting point of evaluation for these differences. 
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- 2012
21. ENDOLARYNGEAL NEUROFIBROMA
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Izadi, F., Arbabi, M. D., Ahmadzad-Asl, M., and Abtin Doroudinia
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lcsh:R5-920 ,lcsh:Medicine (General) - Abstract
"nNeurofibromatosis is a benign neurogenic tumor, originatig from Schwann cells of the nerve sheath. This tumor forms a round, white mass on the course of the involved nerve. It occurs sporadically or in association with von Recklinghausen's disease. Laryngeal involvement is a rare occasion that affects women more than men (F/M ratio 3:2). The most common symptoms are hoarseness, dyspnea and dysphagia. The most common sites of origin are arytenoids and aryepiglottic folds. Because of benign nature of this tumor, conservative surgery is recommended as the management of choice. Only few cases of laryngeal involvement have been reported in literatures and this article presents two cases of laryngeal neurofibroma with brief review of literatures. Both cases had submucosal, non-ulcerated, endolaryngeal mass with signs and symptoms of airway compromise. In both cases surgical approach was endolaryngeal conservative surgery with CO2 laser.
- Published
- 2008
22. Numerical Analysis of the Sulcus Vocalis Disorder on the Function of the Vocal Folds
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Vazifehdoostsaleh, A., primary, Fatouraee, N., additional, Navidbakhsh, M., additional, and Izadi, F., additional
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- 2016
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23. Peripheral neuropathy in type 2 diabetes mellitus in Isfahan, Iran: Prevalence and risk factors
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Janghorbani M., Mohsen, Rezvanian H., Hasan, Kachooei A., Ali, Ghorbani A., Abbas, Chitsaz A., Ahmad, Izadi F., Farzad, and Amini M., Masoud
- Abstract
Background: To estimate the prevalence and risk factors of peripheral neuropathy (PN) in people with type 2 diabetes mellitus. Methods: 810 patients with type 2 diabetes (289 male and 521 female) from Isfahan Endocrinology and Metabolism Research Centre outpatient clinics, Iran , were examined. Part of the examination included an assessment of neurological function including neuropathic symptoms and physical signs, and nerve conduction velocity. Results: The prevalence of PN was 75.1% (95% confidence interval (CI) 72.1, 78.0). Peripheral neuropathy was associated with age, proteinuria, and duration of diabetes, insulin-treatment, and presence of retinopathy and ischaemic heart disease (IHD). The age-adjusted prevalence rate of PN was 78% higher among patients with IHD, 64% higher among patients with any retinopathy, 66% higher among insulin-treated type 2 diabetes, and greater with duration of diabetes. Using a stepwise binary logistic regression model, age, duration of diabetes and proteinuria were significant independent predictors of PN. Conclusion: PN is a common complication in this population of Iranian type 2 diabetic patients. It increases with age, duration of diabetes and proteinuria. (Int J Diabetes Metab 14: 126-133, 2006)
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- 2019
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24. Numerical Analysis of the Sulcus Vocalis Disorder on the Function of the Vocal Folds.
- Author
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Vazifehdoostsaleh, A., Fatouraee, N., Navidbakhsh, M., and Izadi, F.
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- 2017
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25. Discrete Calculus by Analogy
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Izadi, F. A., Bagirov, G., Aliev, N., Izadi, F. A., Bagirov, G., and Aliev, N.
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- Calculus, Computer science--Mathematics
- Abstract
With its origins stretching back several centuries, discrete calculus is now an increasingly central methodology for many problems related to discrete systems and algorithms. The topics covered here usually arise in many branches of science and technology, especially in discrete mathematics, numerical analysis, statistics and probability theory as well as in electrical engineering, but our viewpoint here is that these topics belong to a much more general realm of mathematics; namely calculus and differential equations because of the remarkable analogy of the subject to this branch of mathematics. It is precisely this viewpoint which distinguishes this text from the previous ones. Although the topics are discrete, our approach is analytical. As in continuous mathematical analysis, we first introduce the main concepts such as the definition of a function, power and exponential functions, discrete differentiation and integration, series expansion, complex analytic functions and their integrals, the Cauchy theorem for analytic functions, as well as the harmonic functions in discrete cases. Then, we relate these concepts to the theory of discrete differential equations. The book serves to demonstrate the relationship of various aspects of mathematics with discrete differential equations. It should prove to be useful for mathematics graduates and researchers, regardless of their background on discrete calculus.
- Published
- 2009
26. Role of spirometry in detection of nasal obstruction
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Farhadi, M, primary, Ghanbari, H, additional, Izadi, F, additional, Amintehran, E, additional, Eikani, M S, additional, and Ghavami, Y, additional
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- 2013
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27. ON SILVERMAN'S CONJECTURE FOR A FAMILY OF ELLIPTIC CURVES.
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IZADI, F. and NABARDI, K.
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- *
ELLIPTIC curves , *POLYNOMIALS , *INTEGERS , *LOGICAL prediction , *WEIERSTRASS points , *RANKING (Statistics) - Abstract
Let E be an elliptic curve over Q with the given Weierstrass equation y² = x³ + ax + b. If D is a squarefree integer, then let E(D) denote the D-quadratic twist of E that is given by E(D) : y² = x³ + aD²x + bD³. Let E(D)(ℚ) be the group of Q-rational points of E(D). It is conjectured by J. Silverman that there are infinitely many primes p for which E(p)(ℚ) has positive rank, and there are infinitely many primes q for which E(ℚ)(ℚ) has rank 0. In this paper, assuming the parity conjecture, we show that for infinitely many primes p, the elliptic curve E(p)n: y² = x³ - np²x has odd rank and for infinitely many primes p, E(p)n (ℚ) has even rank, where n is a positive integer that can be written as biquadrates sums in two different ways, i.e., n = u4 + v4 = r4 + s4, where u; v; r; s are positive integers such that gcd(u; v) = gcd(r; s) = 1. More precisely, we prove that: if n can be written in two different ways as biquartic sums and p is prime, then under the assumption of the parity conjecture E(p) n (ℚ) has odd rank (and so a positive rank) as long as n is odd and p ≡ 5; 7 (mod 8) or n is even and p ≡ 1 (mod 4). In the end, we also compute the ranks of some specific values of n and p explicitly. [ABSTRACT FROM AUTHOR]
- Published
- 2016
28. A novel missense mutation in exon 7 of the ECM1 gene in an Iranian lipoid proteinosis patient
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Izadi, F., primary, Mahjoubi, F., additional, Farhadi, M., additional, Tavakoli, M.M., additional, and Samanian, S., additional
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- 2012
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29. Genetic diversity of the major histocompatibility complex region in commercial and noncommercial chicken flocks using the LEI0258 microsatellite marker
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Izadi, F., primary, Ritland, C., additional, and Cheng, K.M., additional
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- 2011
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30. Application of Morphological Method for Detection of Unauthorized Tissues in Processed Meat Products.
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Latorre, R., Sadeghinezhad, J., Hajimohammadi, B., Izadi, F., and Sheibani, M. T.
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MEAT analysis ,FOOD inspection ,PROCESSED foods ,MEAT quality ,FOOD consumption ,CONNECTIVE tissues - Abstract
Background: Nowadays, there is an increase of meat and animal carcass consumption worldwide. Due to the economic value of meat, the likelihood of using unauthorized tissue is possible in meat products. Based on these observations, the aim of the present study was to apply morphological method for detection of unauthorized tissues in processed meat products. Methods: In this study, a total of 20 samples of different types of processed meat products including Kabab Loghme (n=5), sausage (n=5), handmade hamburger (n=5) and Kabab Koobideh (n=5) were randomly collected from restaurants and supermarkets in Iran. The samples were divided into three parts and then, one piece was taken from each part for the histological study. The tissues were fixed in 10% neutral-buffered formalin and were dehydrated and embedded in paraffin and routinely processed for light microscopy. The paraffin-embedded blocks were cut into 6 μm sections and stained using hematoxylin and eosin (H&E) for histological study. Results: The skeletal muscle tissues were visible clearly in all samples. A wide range of unauthorized tissues have been detected including connective tissue (n=20), gizzard (n=2), adipose tissue (n=7), soya (n=11), cartilage (n=5) and ovary (n=1). Conclusion: The present study showed the use of unauthorized tissues in Iranian processed meat products which were detectable by histological method. Therefore, histological technique may be a simple and economic tool for evaluation of the meat adulteration and to improve hygiene and meat quality. [ABSTRACT FROM AUTHOR]
- Published
- 2015
31. Peripheral neuropathy in type 2 diabetes mellitus in Isfahan, Iran: Prevalence and risk factors
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Janghorbani M., Mohsen, primary, Rezvanian H., Hasan, additional, Kachooei A., Ali, additional, Ghorbani A., Abbas, additional, Chitsaz A., Ahmad, additional, Izadi F., Farzad, additional, and Amini M., Masoud, additional
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- 2006
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32. Autologous Cricoid Cartilage as a Graft for Airway Reconstruction in an Emergent Technique - A Case Report
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Izadi, F., Reza Vaghardoost, Derakhshandeh, V., Sobouti, B., and Ghavami, Y.
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Autologus Cricoid Cartilage ,Case Report ,respiratory system ,Reconstruction ,lcsh:Otorhinolaryngology ,lcsh:RF1-547 ,Airway trauma - Abstract
Introduction: Laryngotracheal stenosis can be caused after traumatic injuries to the neck from the subglottic larynx to the trachea. Patients with laryngotracheal stenosis often need a tracheotomy and occasionally may become tracheotomy dependent. Different procedures have been described for the management of these lesions. Management options include techniques of endoscopic dilation, laser resection, laryngo-fissure, and an innovative array of plastic reconstructions with or without the use of stents. Case Report:This paper presents airway reconstruction in a young patient with severe subglottic stenosis due to a blunt trauma to the neck, who was treated using particles of an autologous fractured cricoid cartilage as the source for airway augmentation. An incision was made in the anterior midline of the cricoid lamina and deepened through the scar tissue to the posterior cricoid lamina. Then two lateral incisions (right & left) were made in the cricoid lamina and fractured cartilage particles and the scar tissue were removed via these two lateral incisions. The mucosal lining at the right and left of the midline incision, after debulking, were sutured to a lateral position. Thereafter three cartilage particles were used to reconstruct the anterior cricoid lamina and augment the lumen. Conclusion: It is worth to mention that an autologus cartilage graft can be used for certain cases with traumatic airway stenosis. Further follow up and more patients are needed to approve this method of reconstructive surgery in emergent situations.
33. The effects of size and type of vocal fold polyp on some acoustic voice parameters
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Akbari, E., Seifpanahi, S., Ghorbani, A., Izadi, F., and farhad Torabinezhad
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Voice disorders ,lcsh:R5-920 ,surgical procedures, operative ,Polyps ,otorhinolaryngologic diseases ,Original Article ,pathological conditions, signs and symptoms ,Acoustics ,lcsh:Medicine (General) ,neoplasms ,digestive system diseases ,Vocal cords - Abstract
Background: Vocal abuse and misuse would result in vocal fold polyp. Certain features define the extent of vocal folds polyp effects on voice acoustic parameters. The present study aimed to define the effects of polyp size on acoustic voice parameters, and compare these parameters in hemorrhagic and non-hemorrhagic polyps. Methods: In the present retrospective study, 28 individuals with hemorrhagic or non-hemorrhagic polyps of the true vocal folds were recruited to investigate acoustic voice parameters of vowel/ æ/ computed by the Praat software. The data were analyzed using the SPSS software, version 17.0. According to the type and size of polyps, mean acoustic differences and correlations were analyzed by the statistical t test and Pearson correlation test, respectively; with significance level below 0.05. Results: The results indicated that jitter and the harmonics-to-noise ratio had a significant positive and negative correlation with the polyp size (P=0.01), respectively. In addition, both mentioned parameters were significantly different between the two types of the investigated polyps. Conclusion: Both the type and size of polyps have effects on acoustic voice characteristics. In the present study, a novel method to measure polyp size was introduced. Further confirmation of this method as a tool to compare polyp sizes requires additional investigations.
34. Role of the internal superior laryngeal nerve in the motor responses of vocal cords and the related voice acoustic changes
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Seifpanahi, S., Izadi, F., Jamshidi, A. -A, farhad Torabinezhad, Sarrafzadeh, J., and Mohammadi, S.
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lcsh:R5-920 ,Voice ,Electric stimulation ,Original Article ,sense organs ,Acoustics ,lcsh:Medicine (General) ,Laryngeal nerves ,Vocal cords - Abstract
Background: Repeated efforts by researchers to impose voice changes by laryngeal surface electrical stimulation (SES) have come to no avail. This present pre-experimental study employed a novel method for SES application so as to evoke the motor potential of the internal superior laryngeal nerve (ISLN) and create voice changes. Methods: Thirty-two normal individuals (22 females and 10 males) participated in this study. The subjects were selected from the students of Iran University of Medical Sciences in 2014. Two monopolar active electrodes were placed on the thyrohyoid space at the location of the ISLN entrance to the larynx and 1 dispersive electrode was positioned on the back of the neck. A current with special programmed parameters was applied to stimulate the ISLN via the active electrodes and simultaneously the resultant acoustic changes were evaluated. All the means of the acoustic parameters during SES and rest periods were compared using the paired t-test. Results: The findings indicated significant changes (P=0.00) in most of the acoustic parameters during SES presentation compared to them at rest. The mean of fundamental frequency standard deviation (SD F0) at rest was 1.54 (SD=0.55) versus 4.15 (SD=3.00) for the SES period. The other investigated parameters comprised fundamental frequency (F0), minimum F0, jitter, shimmer, harmonic-to-noise ratio (HNR), mean intensity, and minimum intensity. Conclusion: These findings demonstrated significant changes in most of the important acoustic features, suggesting that the stimulation of the ISLN via SES could induce motor changes in the vocal folds. The clinical applicability of the method utilized in the current study in patients with vocal fold paralysis requires further research.
35. Porous high-density polyethylene in facial reconstruction and revision rhinoplasty: a prospective cohort study
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Mohammadi Shabahang, Ghourchian Shadi, Izadi Farzad, Daneshi Ahmad, and Ahmadi Aslan
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Medpor ,Rhinoplasty ,Frontal reconstruction ,Reconstruction of orbital rim ,Specialties of internal medicine ,RC581-951 - Abstract
Abstract Introduction Initial methods which used human tissues as reconstruction materials caused different problems including rejection, limited shapes and infection. In 1970s, PHDPE (Medpor®) was introduced by its exclusive advantageous including no donor site morbidity, easily shaped and the minimal foreign body reaction. Hereby, we report our experience of using Medpor® in facial reconstruction especially in frontal reconstruction and orbital rim with a large sample size. Methods This study was a prospective cohort study. Surgical techniques included using Medpor® in reconstruction of lamina papiracea (LP) (15 patients), frontal bone (15 patients), orbital rim (18 patients) and open rhinoplasty (8 patients). All interventions on LP were performed by endoscopic procedures. All frontal operations were carried out by bicoronal incision. In orbital defects, we used subciliary incision. Results From all 56 patients, 1 case had primitive neuroectodermal tumor (PNET) of maxillary sinus. In that case, reconstruction of inferior orbital rim was not successful and extrusion was occurred after radiotherapy. In rhinoplasty and other experiences no extrusion or infection were detected within the next 1 to 3 years of follow up. There were not any palpable and visible irregularities under the skin in our experiences. Conclusions In this study the patients did not experience any complications during the follow up periods and the satisfaction was remarkable. Gathering these data gives rise to future review studies which can provide more organized evidences for replacing classic reconstructive methods by the presented material.
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- 2012
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36. Detection of helicobacter pylori in benign laryngeal lesions by polymerase chain reaction: a cross sectional study
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Izadi Farzad, Ahmadi Aslan, Ghourchian Shadi, Daneshi Ahmad, Memari Faramarz, Khadivi Ehsan, and Mohammadi Shabahang
- Subjects
Helicobacter Pylori ,Laryngeal lesion ,Benign ,In-house PCR ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background Although Helicobacter Pylori (HP) was detected in some cases of chronic laryngitis, the results were not confirmed by polymerase chain reaction (PCR). By this time, it has not been found in laryngeal lesions by in house PCR, the most sensitive method for detecting the genome tracks. Regarding the previous results and also few numbers of studies about the presence of HP in benign laryngeal lesions, specifically by PCR, we aimed to investigate the presence of HP in benign laryngeal lesions by in-house PCR. Methods The samples were taken from 55 patients with benign laryngeal lesions and frozen in −20°C. One milliliter (ml) of lysis buffer was added to 100 mg (mg) of each sample and the tube was placed in 56°C overnight. Then DNA extraction was carried out. Results To find HP DNA, in-house PCR was performed that revealed 5 positive results among 55 patients with benign laryngeal lesions. Of them, 3 were polyp, 1 was nodule and 1 was papilloma. Conclusion Although the number of positive results was not a lot in this study, it was in contrast with previous studies which could not find any HP tracks in benign laryngeal lesions by other methods. More studies about the prevalence of HP in benign laryngeal lesions improve judging about the effect of this infection on benign laryngeal lesions.
- Published
- 2012
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37. Genetic variations in immune-related genes in free-run and free-range chicken flocks.
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Izadi, F., Lamont, S. J., Kaiser, M. G., and Cheng, K. M.
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- *
CHICKENS - Abstract
The article presents an abstract of the research paper "Genetic variations in immune-related genes in free-run and free-range chicken flocks," by F. Izadi and colleagues.
- Published
- 2008
38. Dissociative Electron Attachment Dynamics of a Promising Cancer Drug Indicates Its Radiosensitizing Potential.
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Izadi F, Luxford TFM, Sedmidubská B, Arthur-Baidoo E, Kočišek J, Ončák M, and Denifl S
- Subjects
- Molecular Structure, Quantum Theory, Azetidines chemistry, Azetidines pharmacology, Electrons, Radiation-Sensitizing Agents chemistry, Radiation-Sensitizing Agents pharmacology, Antineoplastic Agents chemistry, Antineoplastic Agents pharmacology
- Abstract
2-Bromo-1-(3,3-dinitroazetidin-1-yl)ethan-1-one (RRx-001) is a hypoxic cell chemotherapeutics with already demonstrated synergism in combined chemo-radiation therapy. The interaction of the compound with secondary low-energy electrons formed in large amounts during the physico-chemical phase of the irradiation may lead to these synergistic effects. The present study focuses on the first step of RRx-001 interaction with low-energy electrons in which a transient anion is formed and fragmented. Combination of two experiments allows us to disentangle the decay of the RRx-001 anion on different timescales. Sole presence of the electron initiates rapid dissociation of NO
2 and HNO2 neutrals while NO2 - and Br- anions are produced both directly and via intermediate complexes. Based on our quantum chemical calculations, we propose that bidirectional state switching between π*(NO2 ) and σ*(C-Br) states explains the experimental spectra. The fast dynamics monitored will impact the condensed phase chemistry of the anion as well., (© 2024 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.)- Published
- 2024
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39. Protective effects of silymarin on preventing vancomycin nephrotoxicity in infectious patients: a randomized, double-blinded, placebo-controlled, pilot clinical trial.
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Karimian A, Karimzadeh I, Shafiekhani M, Heidari R, Masjedi F, Izadi F, Barshan-Tashnizi N, Kane-Gill SL, and Mahmoudi L
- Abstract
Nephrotoxicity is one of the most common complications of vancomycin use in clinical practice. Silymarin has potential to be a renoprotective agent for nephrotoxic drugs due to its antioxidant, anti-inflammatory, and anti-apoptotic effects. The aim of this clinical study is evaluating the potential effects of silymarin on preventing vancomycin nephrotoxicity. A multicenter, randomized, double-blinded, placebo-controlled, clinical trial was conducted on patients with the indication of systemic vancomycin for at least 7 days. Patients were screened daily and those who met the inclusion criteria were selected and randomly assigned into either silymarin or placebo groups. Accordingly, 140 mg silymarin tablet (Livergol®) or placebo was given orally three times daily. Silymarin or placebo were provided in conjunction with vancomycin for at least 7 days. If vancomycin therapy was extended beyond 7 days, the administration of silymarin or placebo was continued until the end of vancomycin treatment. Malondialdehyde, glutathione, and total antioxidant capacity were measured in the serum on days 0 and 7. A trough level of vancomycin was assessed 30 min before the fifth dose of vancomycin. Acute kidney injury (AKI) was monitored in each patient daily during the course of vancomycin treatment. The causality assessment of all identified cases of vancomycin associated AKI was performed by the Naranjo scale. The primary endpoint was vancomycin nephrotoxicity. It was defined based on the KDIGO 2012 criteria for AKI as either an increase of 0.3 units or more in serum creatinine level during 48 h or 50% (1.5-fold) or more during 7 days compared to baseline values. During the study period, 34 patients in the silymarin group and 32 patients in the placebo group completed the clinical trial. Demographic, baseline clinical, and laboratory characteristics were comparable between placebo and silymarin groups. The number of patients with AKI on days 5, 6, 7, 11,12, 13, and 14 in the placebo group was significantly higher than that in the silymarin group (p-value < 0.05). The incidence of acute tubular injury on the day 5 and 7 of vancomycin treatment was significantly lower in the silymarin group (p-value = 0.005 and p-value = 0.032, respectively). Antioxidant indexes including serum total antioxidant capacity and glutathione significantly increased in the silymarin group (p-value < 0.001 for both indexes). In contrast, serum malondialdehyde as an end product of lipid peroxidation pathway significantly decreased in the silymarin group during 7 days (p-value < 0.001). The results of the present pilot, clinical trial suggested that silymarin co-administration may prevent vancomycin nephrotoxicity., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2024
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40. Adipocyte derived exosomes promote cell invasion and challenge paclitaxel efficacy in ovarian cancer.
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Williams ME, Howard D, Donnelly C, Izadi F, Parra JG, Pugh M, Edwards K, Lutchman-Sigh K, Jones S, Margarit L, Francis L, Conlan RS, Taraballi F, and Gonzalez D
- Subjects
- Female, Humans, Cell Line, Tumor, Omentum pathology, Omentum metabolism, Cell Proliferation drug effects, Carcinoma, Ovarian Epithelial genetics, Carcinoma, Ovarian Epithelial pathology, Carcinoma, Ovarian Epithelial drug therapy, Carcinoma, Ovarian Epithelial metabolism, Epithelial-Mesenchymal Transition genetics, Epithelial-Mesenchymal Transition drug effects, Exosomes metabolism, Paclitaxel pharmacology, Paclitaxel therapeutic use, Ovarian Neoplasms pathology, Ovarian Neoplasms drug therapy, Ovarian Neoplasms genetics, Ovarian Neoplasms metabolism, Adipocytes metabolism, Adipocytes drug effects, Adipocytes pathology, MicroRNAs genetics, MicroRNAs metabolism, Neoplasm Invasiveness
- Abstract
Background: Epithelial ovarian cancer (EOC) is the deadliest gynaecological cancer with high mortality rates driven by the common development of resistance to chemotherapy. EOC frequently invades the omentum, an adipocyte-rich organ of the peritoneum and omental adipocytes have been implicated in promoting disease progression, metastasis and chemoresistance. The signalling mechanisms underpinning EOC omentum tropism have yet to be elucidated., Methods: Three-dimensional co-culture models were used to explore adipocyte-EOC interactions. The impact of adipocytes on EOC proliferation, response to therapy and invasive capacity was assessed. Primary adipocytes and omental tissue were isolated from patients with ovarian malignancies and benign ovarian neoplasms. Exosomes were isolated from omentum tissue conditioned media and the effect of omentum-derived exosomes on EOC evaluated. Exosomal microRNA (miRNA) sequencing was used to identify miRNAs abundant in omental exosomes and EOC cells were transfected with highly abundant miRNAs miR-21, let-7b, miR-16 and miR-92a., Results: We demonstrate the capacity of adipocytes to induce an invasive phenotype in EOC populations through driving epithelial-to-mesenchymal transition (EMT). Exosomes secreted by omental tissue of ovarian cancer patients, as well as patients without malignancies, induced proliferation, upregulated EMT markers and reduced response to paclitaxel therapy in EOC cell lines and HGSOC patient samples. Analysis of the omentum-derived exosomes from cancer patients revealed highly abundant miRNAs that included miR-21, let-7b, miR-16 and miR-92a that promoted cancer cell proliferation and protection from chemotherapy when transfected in ovarian cancer cells., Conclusions: These observations highlight the capacity of omental adipocytes to generate a pro-tumorigenic and chemoprotective microenvironment in ovarian cancer and other adipose-related malignancies., (© 2024. The Author(s).)
- Published
- 2024
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41. Plasmon-driven chemical transformation of a secondary amide probed by surface enhanced Raman scattering.
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Dutta A, Ončák M, Izadi F, Arthur-Baidoo E, Ameixa J, Denifl S, and Bald I
- Abstract
Plasmon-driven chemical conversion is gaining burgeoning interest in the field of heterogeneous catalysis. Herein, we study the reactivity of N-methyl-4-sulfanylbenzamide (NMSB) at nanocavities of gold and silver nanoparticle aggregates under plasmonic excitation to gain understanding of the respective reaction mechanism. NMSB is a secondary amide, which is a frequent binding motive found in peptides and a common coupling product of organic molecules and biomolecules. Surface-enhanced Raman scattering (SERS) is used as a two-in-one in-situ spectroscopic tool to initiate the molecular transformation process and simultaneously monitor and analyze the reaction products. Supported by dissociative electron attachment (DEA) studies with the gas phase molecule, a hot electron-mediated conversion of NMSB to p-mercaptobenzamide and p-mercaptobenzonitrile is proposed at the plasmonic nanocavities. The reaction rate showed negligible dependence on the external temperature, ruling out the dominant role of heat in the chemical transformation at the plasmonic interface. This is reflected in the absence of a superlinear relationship between the reaction rate constant and the laser power density, and DEA and SERS studies indicate a hot-electron mediated pathway. We conclude that the overall reaction rate is limited by the availability of energetic hot electrons to the NMSB molecule., (© 2024. The Author(s).)
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- 2024
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42. Surprising Radiolytic Stability of 8-Thiomethyladenine in an Aqueous Solution.
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Datta M, Szczyrba A, Zdrowowicz M, Wyrzykowski D, Ciupak O, Demkowicz S, Izadi F, Denifl S, and Rak J
- Abstract
8-Thiomethyladenine (ASCH
3 ), a potentially radiosensitizing modified nucleobase, has been synthesized in a reaction between 8-thioadenine and methyl iodide. Despite favorable dissociative electron attachment (DEA) characteristics, the radiolysis of an aqueous solution of ASCH3 with a dose of X-ray amounting to as much as 300 Gy leads to no effects. Nevertheless, crossed electron-molecule beam experiments in the gas phase on ASCH3 confirm the theoretical findings regarding the stability of its radical anion, namely, the most abundant reaction channel is related to the dissociation of the S-CH3 bond in the respective anion. Furthermore, electron-induced degradation of ASCH3 has been observed in aprotic acetonitrile, which is strong evidence for the involvement of proton transfer (PT) in stabilizing the radical anion in an aqueous solution. These findings demonstrate that PT in water can be the main player in deciding the radiosensitizing properties of modified nucleobases/nucleosides.- Published
- 2024
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43. The Potential Therapeutic Applications of CRISPR/Cas9 in the Treatment of Gastrointestinal Cancers.
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Mehrabadi S, Salmani Izadi F, Pasha S, Pourali R, Khazaei M, Hassanian SM, Ferns GA, and Avan A
- Abstract
Gastrointestinal (GI) cancer is one the most prevalent types of cancer. Despite current chemotherapy's success, patients with GI cancer continue to have a dismal outcome. The onset and progression of cancer are caused by alterations and the abnormal expression of several families of genes, like tumor-suppressor genes, oncogenes, and chemotherapy-resistant genes. The final purpose of tumor therapy is to inhibit cellular development by modifying mutations and editing the irregular expression of genes It has been reported that CDH1, TP53, KRAS, ARID1A, PTEN, and HLA-B are the commonly mutated genes in GI cancer. Gene editing has become one potential approach for cases with advanced or recurrent CRC, who are nonresponsive to conventional treatments and a variety of driver mutations along with progression cause GI progression. CRISPR/Cas9 technique is a reliable tool to edit the genome and understand the functions of mutations driving GI cancer development. CRISPR/Cas9 can be applied to genome therapy for GI cancers, particularly with reference to molecular-targeted medicines and suppressors. Moreover, it can be used as a therapeutic approach by knocking in/out multiple genes. The use of CRISPR/ Cas9 gene editing method for GI cancer therapy has therefore resulted in some improvements. There are several research works on the role of CRISPR/Cas9 in cancer treatment that are summarized in the following separate sections. Here, the use of CRISPR/Cas9-based genome editing in GI and the use of CRISPR/Cas9 is discussed in terms of Targeting Chemotherapy Resistance-related Genes like; KRAS, TP53, PTEN, and ARID1A., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2024
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44. Comparison of Laryngeal Palpatory Scale (LPS), With Surface Electromyographic Measures in Patients with Muscle Tension Dysphonia.
- Author
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Jafari N, Izadi F, Ebadi A, Talebian S, Dabirmoghadam P, Jordens K, Bahmani K, and Van Lierde K
- Subjects
- Male, Humans, Female, Adult, Lipopolysaccharides, Muscle Tonus, Treatment Outcome, Laryngeal Muscles, Dysphonia diagnosis, Dysphonia therapy, Larynx
- Abstract
Objectives: The aim of this study was to examine the laryngeal palpatory scale (LPS) to ascertain possible correlation with neck surface electromyography (sEMG)., Methods: Two otolaryngologists and one certified speech-language pathologist assessed 21 participants (seven women and 14 men; with a mean age of 42.8 years; ranged: 21 to 70 years) with muscle tension dysphonia (MTD) diagnosed with the current version of the LPS rating system. Consequently, relationships between LPS and objective measures of sEMG were evaluated using Spearman's rank correlation coefficient (r)., Results: The results show that there was a low to moderate between correlations, (statistically positive and significant in 10 correlations among the examined items/states)., Conclusions: In conclusion, low-moderate positive correlations between sEMG and LPS ratings were found with particular strength for LPS ratings of tightness and ratings made during dynamic tasks. Further investigations can provide useful evidence for researchers and clinicians to document treatment outcomes by using LPS and sEMG in patients with MTD and leading to the more standardized care and improved information about patient progress., (Copyright © 2021 The Voice Foundation. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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45. Griffiths singularity in quasi-one-dimensional restricted ±J Ising spin glass.
- Author
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Izadi F and Sepehrinia R
- Abstract
We obtain the exact ground-state energy of the quasi-one-dimensional restricted ±J Ising spin glass in a uniform magnetic field using the transfer matrix method. Magnetic field dependence allows us to derive the magnetization as a function of concentration and magnetic field. It turns out that, in the limit of zero field, the magnetization tends to a nonzero value with a singular dependence on the magnetic field. We derive the explicit form of the singularity in thermodynamic quantities such as energy E≃E_{0}+m_{0}h+E_{1}e^{-h_{0}/h}, which is an essential singularity known as Griffiths singularity. We confirm our analytical results using the numerical approach based on iterative equations for energy.
- Published
- 2023
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46. Prevalence of Delirium and Its Related Factors in Burn Patients; a Systematic Review and Meta-Analysis.
- Author
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Alizadeh Otaghvar H, Farzan R, Tamimi P, Ghaderi A, Najafi M, Tohidian M, Izadi F, and Mazhari SA
- Abstract
Introduction: Considering the importance of delirium disorder in burn patients and its complications, the present systematic review and meta-analysis aimed to determine the prevalence of delirium and its related factors in burn patients., Methods: A comprehensive, systematic search was performed in different international electronic databases, such as Scopus, PubMed, and Web of Science, as well as Persian electronic databases such as Iranmedex, and Scientific Information Database (SID) using keywords extracted from Medical Subject Headings such as "Prevalence", "Delirium", and "Burns" from the earliest to the 17th of July, 2023., Results: In total, 2,710 burn patients participated in ten original studies. Among the participants, 64.6% were male. In the ten studies, the reported pooled prevalence of delirium among burn patients was 20.5% (95% CI: 10.9% to 35.0%; I
2 =96.889%; P<0.001). Also, factors such as total body surface area, duration of hospitalization, mortality, days on ventilator, alcoholism, benzodiazepine dose, methadone dose, age, male gender, ICU days, operation days, wound care under anesthesia, and opioid dose had a significant correlation with the prevalence of delirium in burn patients., Conclusion: Health managers and policymakers can reduce the prevalence of delirium in burn patients by eliminating or reducing factors associated with it., Competing Interests: The authors declare no conflict of interest.- Published
- 2023
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47. The Effect of Aromatherapy with Lavender on Pain of Needle Insertion and Severity of Restless Legs Syndrome in Hemodialysis Patients; a Systematic Review and Meta-analysis.
- Author
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Izadi F, Mazhari SA, Najafi M, Ashoobi MT, Sarafi M, Karkhah S, Ghorbani Vajargah P, Takasi P, Firooz M, Hosseini SJ, and Ozen N
- Abstract
Introduction: Pain experienced during the insertion of a catheter into the arteriovenous fistula (AVF) and restless legs syndrome (RLS) are prevalent issues among Hemodialysis (HD) patients. The primary objective of this systematic review and meta-analysis was to consolidate the findings from randomized clinical trial (RCT) studies examining the impact of aromatherapy with lavender on the pain associated with AVF catheter insertion and RLS in HD patients., Methods: A systematic search was conducted on PubMed, Web of Science, Scopus, Cochrane, Embase, ClinicalTrials.gov, and Google Scholar search engine from inception to August 1, 2022, using keywords extracted from Medical Subject Headings, such as "Aromatherapy", "Lavender", "Arteriovenous fistula", "Pain", "Restless legs syndrome", and "Hemodialysis"., Results: Finally, eleven articles were included in this systematic review and meta-analysis. The results showed that aromatherapy reduced the average pain of catheter insertion in AVF compared to the control group (Standard Mean Difference: -1.60, 95% Confidence Interval: -2.32 to -0.87, Z=4.32, I
2 :90.3%, P<0.001). Also, aromatherapy massage reduced the average severity of RLS compared to the control group, which was statistically significant (Weighted Mean Difference: -13.21, 95% Confidence Interval: -17.50 to -8.91, Z=6.03, I2 :93.0%, P<0.001). Also, the subgroup analysis showed that lavender in the intervention group significantly decreased the pain intensity compared to the "no intervention" group (P<0.001), yet it was not significant compared to the placebo group (P=0.12)., Conclusion: In summary, the findings indicate a notable reduction in catheter insertion pain in AVF and relief from RLS among HD patients through the use of lavender essential oil. As a result, future research is encouraged to include a comparison of lavender's effects with those of a placebo group., Competing Interests: The authors declare that there is no conflict of interest.- Published
- 2023
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48. Prevalence and Related Factors of Rupture among Cases with Ectopic Pregnancy; a Systematic Review and Meta-Analysis.
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Xu C, Mao Z, Tan M, Mazhari SA, Ghorbani Vajargah P, Karkhah S, Izadi F, and Rouhi P
- Abstract
Introduction: In the absence of timely treatment, the risk of rupture in patients with ectopic pregnancy (EP) increases, which is associated with extensive bleeding, complicated surgery, and maternal death. This study aimed to investigate the prevalence of rupture and its related factors among EP cases., Methods: A comprehensive, systematic search was conducted in electronic databases, such as Scopus, PubMed, Web of Science, and Persian electronic databases such as Iranmedex, and Scientific Information Database using keywords extracted from Medical Subject Headings such as "Ectopic pregnancies", "Extrauterine pregnancies", and "Ruptured ectopic pregnancy" from the earliest to the 13th of December 2022. The CMA program, version 3, was utilized for analysis. The overall effect size was calculated using the sample size and the frequency of rupture in each of the studies. Heterogeneity was measured using the I
2 statistics., Results: A total of 5,269 women with EP participated in 17 studies. The pooled prevalence of rupture was 56.4% (95%CI: 44.9% to 67.2%; I2 =98.09%; P<0.001). Factors such as number of parties, amount of β-hCG, age, history of ectopic pregnancy, cornual and isthmic pregnancies, gestational age, number of gravidities, history of tubal ligation, tubal diameters, periods of infertility, history of infertility, pregnancy by ovulation induction, extensive hemoperitoneum, ampullar and isthmic pregnancies, ampullar pregnancies, preoperative heart rate (HR), triage, triage shock index (SI), abdominal pain, single marital status, preoperative hemoglobin levels, preoperative hematocrit levels, history of pelvic inflammatory disease (PID), and use of contraceptives were associated with the prevalence of rupture in EP cases., Conclusion: Based on the findings, 56.4% of EP cases experienced rupture and various factors influence its prevalence. As a result, health managers and policymakers can address and mitigate modifiable factors contributing to rupture in EP cases by implementing regular consultations and screenings., Competing Interests: The authors declare no conflict of interest.- Published
- 2023
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49. Platelet distribution widths and white blood cell are associated with cardiovascular diseases: data mining approaches.
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Poudineh M, Mansoori A, Sadooghi Rad E, Hosseini ZS, Salmani Izadi F, Hoseinpour M, Mahmoudi Zo M, Ghoflchi S, Tanbakuchi D, Nazar E, Ferns G, Effati S, Esmaily H, and Ghayour-Mobarhan M
- Abstract
Objective: To investigate the association between cardiovascular diseases (CVDs) and haematologic factors in a cohort of Iranian adults., Method: For a total population of 9,704 aged 35 to 65, a prospective study was designed. Haematologic factors and demographic characteristics (such as gender, age, and smoking status) were completed for all participants. The association between haematologic factors and CVDs was assessed through logistic regression (LR) analysis, decision tree (DT), and bootstrap forest (BF)., Results: Almost all of the included factors were significantly associated with CVD ( p <.001). Among the included factors, were: age, white blood cell (WBC), and platelet distribution width (PDW) had the strongest correlation with the development of CVD. For unit OR interpretation, WBC has been represented as the most remarkable risk factor for CVD (OR: 1.22 (CI 95% (1.18, 1.27))). Also, age is associated with an increase in the odds of CVD + occurrence (OR: 1.12 (CI 95% (1.11, 1.13))). Moreover, males are times more likely to develop CVD than females (OR: 1.39 (CI 95% (1.22, 1.58))). In DT model, age is the best classifier factor in CVD development, followed by WBC and PDW. Furthermore, based on the BF algorithm, the most crucial factors correlated with CVD are age, WBC, PDW, sex, and smoking status., Conclusion: The obtained result from LR, DT, and BF models confirmed that age, WBC, and PDW are the most crucial factors for the development of CVD.
- Published
- 2023
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50. Dissociative Electron Attachment to 5-Iodo-4-thio-2'-deoxyuridine: A Potential Radiosensitizer of Hypoxic Cells.
- Author
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Saqib M, Arthur-Baidoo E, Izadi F, Szczyrba A, Datta M, Demkowicz S, Rak J, and Denifl S
- Subjects
- Thiouridine, Anions, Electrons, Radiation-Sensitizing Agents pharmacology, Radiation-Sensitizing Agents chemistry
- Abstract
In the search for effective radiosensitizers for tumor cells, halogenated uracils have attracted more attention due to their large cross section for dissociation upon the attachment of low-energy electrons. In this study, we investigated dissociative electron attachment (DEA) to 5-iodo-4-thio-2'-deoxyuridine, a potential radiosensitizer using a crossed electron-molecule beam experiment coupled with quadrupole mass spectrometry. The experimental results were supported by calculations on the threshold energies of formed anions and transition state calculations. We show that low-energy electrons with kinetic energies near 0 eV may effectively decompose the molecule upon DEA. The by far most abundant anion observed corresponds to the iodine anion (I
- ). Due to the associated bond cleavage, a radical site is formed at the C5 position, which may initiate strand break formation if the molecule is incorporated into a DNA strand. Our results reflect the conclusion from previous radiolysis studies with the title compound, suggesting its potential as a radiosensitizer.- Published
- 2023
- Full Text
- View/download PDF
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