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Soleiman Mohammadzadeh,Narmin Baghi,Fayegh Yousefi,Bahar Yousefzamani 대한소아청소년과학회 2019 Clinical and Experimental Pediatrics (CEP) Vol.62 No.9
Background: Attention deficit-hyperactivity disorder (ADHD) is one of the most common chronic behavioral disorders in school-aged children. Purpose: This study aimed to evaluate the effect of omega-3 supplementation as an alternative therapy for ADHD, which can be caused by vitamin and mineral deficiencies. Methods: This was a double-blinded clinical trial study. Sixty-six children with ADHD (aged 6–12 years) referred to our child and adolescent psychiatric educational and therapeutic clinic were selected based on Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision criteria. Instruments including the Parent ADHD Rating Scale were used to assess ADHD at 0, 2, 4, and 8 weeks during the study. Results: The results showed no statistically significant difference between the methylphenidate with omega-3 group and methylphenidate with placebo group based on the Parents ADHD Rating Scale between week 0 (P≥0.96) and week 8 (P≥0.75). There were no significant intergroup differences between the Inattention (P≥0.48) and hyperactivity/impulsivity (P≥0.80) subscale scores on the Parents ADHD Rating Scale. The most common drug complications in the methylphenidate with placebo and methylphenidate with omega-3 groups were anorexia (27 [54%] vs. 41 [60.29%], respectively) and diarrhea (10 [20%] vs. 8 [11.76%], respectively), but the differences were not statistically significant (P> 0.05). Conclusion: Our results demonstrate that a specific dose of omega-3 for 8 weeks had no effect on ADHD.
Soleiman Mahjoub,Arezoo Ghadi,Roghayeh Pourbagher,Karimollah Hajian-Tilaki,Jila Masrour-Roudsari 대한신경과학회 2016 Journal of Clinical Neurology Vol.12 No.4
Background and Purpose Regular exercise can result in changes in the levels of oxidative stress in the hippocampus; however, little attention has been paid to physical-activity-induced neuronal protection to exposure to lead compounds. This study investigated the effects of regular treadmill exercise on a DNA oxidative-damage marker [8-hydroxy-2’-deoxyguano¬sine (8-OHdG)] and the total antioxidant capacity (TAC) of hippocampal tissue in lead-ace¬tate exposed rats. Methods This study investigated the effects of 8 weeks of regular treadmill exercise on 8-OHdG and the TAC of hippocampal tissue in lead-acetate-exposed rats. Wistar rats were randomly divided into four groups: baseline, sham (control), lead, and exercise+lead. The ex¬ercise program involved running on a treadmill with increasing intensity five times a week for 8 weeks. Animals in the lead and exercise+lead groups received lead acetate at 20 mg/kg body weight intraperitoneally three times weekly for 8 weeks. Animals in the sham group re¬ceived solvent (ethyl oleate) at 30 mg/kg body weight three times weekly for 8 weeks. TAC and 8-OHdG were measured by spectrophotometric and ELISA techniques, respectively. Data were analyzed by ANOVA and Tukey’s post-hoc test with a significance cutoff of p≤0.05. Results The level of 8-OHdG and the TAC were significantly higher and lower, respective¬ly, in the lead group than in the baseline and sham groups (p<0.01). However, the 8-OHdG level and TAC value in hippocampal tissue were significantly decreased and increased, re-spectively, in the exercise+lead group relative to the lead group (p<0.05). Conclusions The TAC of hippocampal tissue may be directly associated with neural protec¬tion mechanisms of exercise following lead acetate injection, and the beneficial effects of regular exercise in preventing hippocampal neuronal damage could be due to decreased hippocampal oxidative stress such as reflected by a lower 8-OHdG level and increased TAC.
GLOBAL THEORY OF VERTICAL RECURRENT FINSLER CONNECTION
Soleiman, Amr Korean Mathematical Society 2021 대한수학회논문집 Vol.36 No.3
The aim of the present paper is to establish an intrinsic generalization of Cartan connection in Finsler geometry. This connection is called the vertical recurrent Finsler connection. An intrinsic proof of the existence and uniqueness theorem for such connection is investigated. Moreover, it is shown that for such connection, the associated semi-spray coincides with the canonical spray and the associated nonlinear connection coincides with the Barthel connection. Explicit intrinsic expression relating this connection and Cartan connection is deduced. We also investigate some applications concerning the fundamental geometric objects associated with this connection. Finally, three important results concerning the curvature tensors associated to a special vertical recurrent Finsler connection are studied.
Ramezanifar Soleiman,Beyrami Sona,Mehrifar Younes,Ramezanifar Ehsan,Soltanpour Zahra,Namdari Mahshid,Gharari Noradin 한국산업안전보건공단 산업안전보건연구원 2023 Safety and health at work Vol.14 No.1
The human reproductive system can be affected by occupational exposure to many physical and chemical risk factors. This studywas carried out to reviewthe studies conducted on the issue of the pathophysiological effects of occupational physical and chemical risk factors on the reproductive systemof females andmales. In this systematic review, the databases such as “Google Scholar,” “Pub-Med,” “Scopus,” and “Web of Science” were used. Following the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA 2020), the studies included in our study were published between 2000 and 2021. In order to extract the required data, all sections of the articles were reviewed. Out of 57 articles we reviewed, 34 articles were related to field studies and 23 articles to clinical studies. Among them, 43 studies dealt with the pathophysiological effects of chemical agents, six studies dealt with the pathophysiological effects of physical factors, and 8 studies dealt with the pathophysiological effects of physicochemical factors on the human reproductive system. Physical (noise, heat, and radiofrequency radiation) and chemical (such as carbamate and organophosphate pesticides, benzene, toluene, xylene, formaldehyde,NO2, CS2,manganese, lead, nickel, and n-hexane) risk factors had pathophysiological effects on the human reproductive system. The presence of these risk factors in the workplace caused damage to the human reproductive system. The rate of these negative pathophysiological effects can be reduced by performing appropriate managerial, technical, and engineering measures in work environments.
Mohammadzadeh, Soleiman,Baghi, Narmin,Yousefi, Fayegh,Yousefzamani, Bahar The Korean Pediatric Society 2019 Clinical and Experimental Pediatrics (CEP) Vol.62 No.9
Background: Attention deficit-hyperactivity disorder (ADHD) is one of the most common chronic behavioral disorders in school-aged children. Purpose: This study aimed to evaluate the effect of omega-3 supplementation as an alternative therapy for ADHD, which can be caused by vitamin and mineral deficiencies. Methods: This was a double-blinded clinical trial study. Sixty-six children with ADHD (aged 6-12 years) referred to our child and adolescent psychiatric educational and therapeutic clinic were selected based on Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision criteria. Instruments including the Parent ADHD Rating Scale were used to assess ADHD at 0, 2, 4, and 8 weeks during the study. Results: The results showed no statistically significant difference between the methylphenidate with omega-3 group and methylphenidate with placebo group based on the Parents ADHD Rating Scale between week 0 ($P{\geq}0.96$) and week 8 ($P{\geq}0.75$). There were no significant intergroup differences between the Inattention ($P{\geq}0.48$) and hyperactivity/impulsivity ($P{\geq}0.80$) subscale scores on the Parents ADHD Rating Scale. The most common drug complications in the methylphenidate with placebo and methylphenidate with omega-3 groups were anorexia (27 [54%] vs. 41 [60.29%], respectively) and diarrhea (10 [20%] vs. 8 [11.76%], respectively), but the differences were not statistically significant (P>0.05). Conclusion: Our results demonstrate that a specific dose of omega-3 for 8 weeks had no effect on ADHD.
Intrinsic theory of $C^v$-reducibility in Finsler Geometry
Salah Gomaa Elgendi,Amr Soleiman 대한수학회 2024 대한수학회논문집 Vol.39 No.1
In the present paper, following the pullback approach to Finsler geometry, we study intrinsically the $C^v$-reducible and generalized $C^v$-reducible Finsler spaces. Precisely, we introduce a coordinate-free formulation of these manifolds. Then, we prove that a Finsler manifold is $C^v$-reducible if and only if it is $C$-reducible and satisfies the $\mathbb{T}$-condition. We study the generalized $C^v$-reducible Finsler manifold with a scalar $\pi$-form $\mathbb{A}$. We show that a Finsler manifold $(M,L)$ is generalized $C^v$-reducible with $\mathbb{A}$ if and only if it is $C$-reducible and $\mathbb{T}=\mathbb{A}$. Moreover, we prove that a Landsberg generalized $C^v$-reducible Finsler manifold with a scalar $\pi$-form $\mathbb{A}$ is Berwaldian. Finally, we consider a special $C^v$-reducible Finsler manifold and conclude that a Finsler manifold is a special $C^v$-reducible if and only if it is special semi-$C$-reducible with vanishing $\mathbb{T}$-tensor.
An intrinsic proof of Numata's theorem on Landsberg spaces
Salah Gomaa Elgendi,Amr Soleiman 대한수학회 2024 대한수학회지 Vol.61 No.1
In this paper, we study the unicorn's Landsberg problem from an intrinsic point of view. Precisely, we investigate a coordinate-free proof of Numata's theorem on Landsberg spaces of scalar curvature. In other words, following the pullback approach to Finsler geometry, we prove that all Landsberg spaces of dimension $n\geq 3$ of non-zero scalar curvature are Riemannian spaces of constant curvature.