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Sahar Rezaei,Karamatollah Rezaei,Maryam Haghighi,Mohsen Labbafi 한국식품과학회 2013 Food Science and Biotechnology Vol.22 No.5
Microwave-assisted extraction (MAE) in the presence of ethanol and water as solvents was applied as a modern technique to extract polyphenolic compounds from apple pomace and the results were compared to those of Soxhlet extraction and maceration. Various experimental conditions such as microwave power, extraction time, type of solvent, and solvent to sample ratio were considered for the study. Increasing microwave power (from 90 to 360 W)resulted in lower extraction yields. Ethanol-water (at the ratio of 65 to 35) was the best solvent for MAE. However,for the sake of higher water contribution in the extraction,a ratio of 35:65 (ethanol:water) can be selected for a recovery of -90% at a shorter extraction time. The best solvent to sample ratio was found at 20 to 1 level. When used for the extraction of polyphenolic compounds from apple pomace, MAE was faster than maceration and Soxhlet methods.
Mahshid Rezaei,Zahra Tajary,Zahra Esmaeily,Atefeh Eyvazkhani,Shahrzad Daei,Marjan Mansouri Dara,Mohaddeseh Rezaei,Abolghassem Djazayeri,Ahmadreza Dorosty Motlagh 질병관리본부 2023 Osong Public Health and Research Persptectives Vol.14 No.1
Objectives: Inflammation has been proposed to be one of the main causes of musculoskeletal pain. Diet is a lifestyle factor that plays an important role in managing inflammation; thus, we assessed the inflammatory potential of diets using the empirical dietary inflammatory index (EDII) to investigate the relationship between diet and musculoskeletal pain. Methods: This cross-sectional study included 212 elderly individuals who were selected from health centers in Tehran, Iran. Dietary intake was evaluated using a valid and reliable 147-item food frequency questionnaire. To measure the intensity of pain, a visual analogue scale was used. Multiple linear regression was applied to assess the association between the EDII and musculoskeletal pain. Results: In total, 62.7% and 37.3% of participants had mild and severe pain, respectively. The EDII values were 0.97±0.72 and 1.10±0.66, respectively, in those with mild and severe pain. A higher EDII score was associated with more intense musculoskeletal pain after adjusting for age and sex (β=0.20; 95% confidence interval [CI], 0.06–0.26; p<0.001), but not after adjustment for other confounders (β=–0.13; 95% CI, –1.54 to 0.60; p=0.39). Conclusion: Our findings indicated that higher dietary inflammation might not be associated with musculoskeletal pain in older adults. However, further investigations are required to confirm these findings.
Estimating the Economic Burden of Lung Cancer in Iran
Rezaei, Satar,Sari, Ali Akbari,Woldemichael, Abraha,Soofi, Moslem,Kazemi, Ali,Matin, Behzad Karami Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.10
Objectives: Lung cancer is a major public health problem and one of the most costly illnesses. The study aimed to estimate the economic burden of lung cancer in Iran in 2014. Methods: A cross-sectional study was conducted to estimate the direct and indirect costs for patients with lung cancer using a prevalence-based approach. A human capital approach was employed to estimate the indirect costs. Data were obtained from several sources such as through patient interview using structured questionnaire, medical records, the GLOBOCAN databases, the Iranian Statistical Center, the Iranian Ministry of Cooperation, Labor and Social Welfare, and the Institute for Health Metrics and Evaluation (IHME). Results: The economic burden of lung cancer in Iran in the year 2014 was 3,225,998,555,090 IR. The main components of the cost were associated with mortality (81.9 %) and hospitalization (7.6 %). The costs of direct medical care, non-medical aspects, patient time, and mortality accounted for 10.8%, 2.7%, 4.5%, and 81.5% of the total cost, respectively. Conclusion: Findings from this study indicated that the economic burden of lung cancer is substantial both to Iran's health system and to society as a whole. Early diagnosis, strengthening cancer prevention, implementing new cancer therapy and medical technology, and effective smoking-cessation interventions could offset some of the costs associated with lung cancer in Iran.
Rezaei-Tavirani, Mostafa,Moghaddamnia, Seyed Hassan,Ranjbar, Bijan,Amani, Mojtaba,Marashi, Sayed-Amir Korean Society for Biochemistry and Molecular Biol 2006 Journal of biochemistry and molecular biology Vol.39 No.5
Thermal conformational changes of human serum albumin (HSA) in phosphate buffer, 10 mM at pH = 7 are investigated using differential scanning calorimetric (DSC), circular dichroism (CD) and UV spectroscopic methods. The results indicate that temperature increment from $25^{\circ}C$ to $55^{\circ}C$ induces reversible conformational changes in the structure of HSA. Conformational change of HSA are shown to be a three-step process. Interestingly, melting temperature of the last domain is equal to the maximum value of fever in pathological conditions, i.e. $42^{\circ}C$. These conformational alterations are accompanied by a mild alteration of secondary structures. Study of HSA-SDS (sodium dodecyl sulphate) interaction at $45^{\circ}C$ and $35^{\circ}C$ reveals that SDS affects the HSA structure at least in three steps: the first two steps result in more stabilization and compactness of HSA structure, while the last one induces the unfolding of HSA. Since HSA has a more affinity for SDS at $45^{\circ}C$ compared to $35^{\circ}C$, It is suggested that the net negative charge of HSA is decreased in fever, which results in the decrease of HSA-associated cations and plasma osmolarity, and consequently, heat removal via the increase in urine volume.
SYNDETIC SEQUENCES AND DYNAMICS OF OPERATORS
Rezaei, Hamid Korean Mathematical Society 2012 대한수학회논문집 Vol.27 No.3
In the present paper, we show that a continuous linear operator T on a Frechet space satisfies the Hypercyclic Criterion with respect to a syndetic sequence must satisfy the Kitai Criterion. On the other hand, an operator, hereditarily hypercyclic with respect to a syndetic sequence must be mixing. We also construct weighted shift operators satisfying the Hypercyclicity Criterion which do not satisfy the Kitai Criterion. In other words, hereditarily hypercyclic operators without being mixing.
Rezaei, Milad,Haghshenas, Davoud F.,Ghorbani, Mohammad,Dolati, Abolghasem The Korean Electrochemical Society 2018 Journal of electrochemical science and technology Vol.9 No.3
In this work, Fe-Pd alloy films have been electrodeposited on different substrates using an electrolyte containing $[Pd(NH_3)_4]^{2+}$ (0.02 M) and $[Fe-Citrate]^{2+}$ (0.2 M). The influences of substrate and overpotential on chemical composition, nucleation and growth kinetics as well as the electrodeposited films morphology have been investigated using energy dispersive X-ray spectroscopy (EDS), current-time transients, scanning electron microscopy (SEM), atomic force microscopy (AFM) and X-ray diffraction (XRD) patterns. In all substrates - brass, copper and sputtered fluorine doped tin oxide on glass (FTO/glass) - Fe content of the electrodeposited alloys increases by increasing the overpotential. Also the cathodic current efficiency is low due to high rate of $H_2$ co-reduction. Regarding the chronoamperometry current-time transients, it has been demonstrated that the nucleation mechanism is instantaneous with a typical three dimensional (3D) diffusion-controlled growth in the case of brass and copper substrates; while for FTO, the growth mode changes to 3D progressive. At a constant overpotential, the calculated number of active nucleation sites for metallic substrates is much higher than that of FTO/glass; however by increasing the overpotential, the number of active nucleation sites increases. The SEM micrographs as well as the XRD patterns reveal the formation of Fe-Pd alloy thin films with nanostructure arrangement and ultra-fine grains.
Rezaei, Ali Akbar,Salehi, Iraj,Karimi, Seyed Asaad,Rahnama, Mehdi The Korean Society for Reproductive Medicine 2020 Clinical and Experimental Reproductive Medicine Vol.47 No.1
Objective: The strong antioxidant activity of Commiphora mukul prompted us to conduct the present study to explore whether treatment with C. mukul extract (CME) would have any protective influence on sperm parameters, testosterone levels, and plasma glucose levels in streptozotocin (STZ)-induced diabetic rats. Methods: Male Wistar rats were randomly divided into four groups: control, control animals treated with CME, diabetic animals, and diabetic animals treated with CME. CME extract (300 mg/kg) was administered for 60 days by daily gavage. Diabetes was induced by an intraperitoneal injection of 50 mg/kg STZ. The epididymal sperm count, weight, motility, morphology, viability, and serum testosterone and glucose levels were determined. Results: In the diabetic animals, CME decreased blood glucose levels (p< 0.05), increased the total sperm count (p< 0.05), and decreased the proportion of sperm with abnormal morphology (p< 0.05). Diabetes reduced sperm motility (p< 0.001), and CME supplementation partially reversed this effect of diabetes (p= 0.003). Furthermore, in diabetic animals, CME decreased the proportion of immotile sperm (p< 0.001). In rats, diabetes caused a significant decrease (p< 0.05) in serum testosterone levels (F[3, 28] = 3.283, p= 0.035), but treatment of diabetic animals with CME increased serum testosterone levels. Conclusion: The present study demonstrated that C. mukul possesses proandrogenic activity and exerts a beneficial effect on sperm parameters in diabetic rats.
COMMUTING ELEMENTS WITH RESPECT TO THE OPERATOR Λ IN INFINITE GROUPS
Rezaei, Rashid,Russo, Francesco G. Korean Mathematical Society 2016 대한수학회보 Vol.53 No.5
Using the notion of complete nonabelian exterior square $G\hat{\wedge}G$ of a pro-p-group G (p prime), we develop the theory of the exterior degree $\hat{d}(G)$ in the infinite case, focusing on its relations with the probability of commuting pairs d(G). Among the main results of this paper, we describe upper and lower bounds for $\hat{d}(G)$ with respect to d(G). Here the size of the second homology group $H_2(G,\mathbb{Z}_p)$ (over the p-adic integers $\mathbb{Z}_p$) plays a fundamental role. A further result of homological nature is placed at the end, in order to emphasize the influence of $H_2(G,\mathbb{Z}_p)$ both on G and $\hat{d}(G)$.
COLOCALIZATION OF LOCAL HOMOLOGY MODULES
Rezaei, Shahram Korean Mathematical Society 2020 대한수학회보 Vol.57 No.1
Let I be an ideal of Noetherian local ring (R, m) and M an artinian R-module. In this paper, we study colocalization of local homology modules. In fact we give Colocal-global Principle for the artinianness and minimaxness of local homology modules, which is a dual case of Local-global Principle for the finiteness of local cohomology modules. We define the representation dimension r<sup>I</sup> (M) of M and the artinianness dimension a<sup>I</sup> (M) of M relative to I by r<sup>I</sup> (M) = inf{i ∈ ℕ<sub>0</sub> : H<sup>I</sup><sub>i</sub> (M) is not representable}, and a<sup>I</sup> (M) = inf{i ∈ ℕ<sub>0</sub> : H<sup>I</sup><sub>i</sub> (M) is not artinian} and we will prove that i) a<sup>I</sup> (M) = r<sup>I</sup> (M) = inf{r<sup>IR<sub>𝖕</sub></sup> (<sub>𝖕</sub>M) : 𝖕 ∈ Spec(R)} ≥ inf{a<sup>IR<sub>𝖕</sub></sup> (<sub>𝖕</sub>M) : 𝖕 ∈ Spec(R)}, ii) inf{i ∈ ℕ<sub>0</sub> : H<sup>I</sup><sub>i</sub> (M) is not minimax} = inf{r<sup>IR<sub>𝖕</sub></sup> (<sub>𝖕</sub>M) : 𝖕 ∈ Spec(R) ∖ {𝔪}}. Also, we define the upper representation dimension R<sup>I</sup> (M) of M relative to I by R<sup>I</sup> (M) = sup{i ∈ ℕ<sub>0</sub> : H<sup>I</sup><sub>i</sub> (M) is not representable}, and we will show that i) sup{i ∈ ℕ<sub>0</sub> : H<sup>I</sup><sub>i</sub> (M) ≠ 0} = sup{i ∈ ℕ<sub>0</sub> : H<sup>I</sup><sub>i</sub> (M) is not artinian} = sup{R<sup>IR<sub>𝖕</sub></sup> (<sub>𝖕</sub>M) : 𝖕 ∈ Spec(R)}, ii) sup{i ∈ ℕ<sub>0</sub> : H<sup>I</sup><sub>i</sub> (M) is not finitely generated} = sup{i ∈ ℕ<sub>0</sub> : H<sup>I</sup><sub>i</sub> (M) is not minimax} = sup{R<sup>IR<sub>𝖕</sub></sup> (<sub>𝖕</sub>M) : 𝖕 ∈ Spec(R) ∖ {𝔪}}.
Rezaei, Pouya Sirous,Oh, Daejun,Hong, Yeojin,Kim, Young-Min,Jae, Jungho,Jung, Sang-Chul,Jeon, Jong-Ki,Park, Young-Kwon Pergamon 2017 Energy Conversion and Management Vol. No.
<P><B>Abstract</B></P> <P>Catalytic co-pyrolysis of biomass and hydrogen-rich materials is an effective approach for enhancing the production of bio-based hydrocarbons. In this work, mesoporous solid acid materials, such as hierarchical mesoporous MFI (meso MFI), hierarchical mesoporous Y (meso Y) and Al-SBA-15, were used as the catalysts for the catalytic co-pyrolysis of yellow poplar (YP) and high-density polyethylene (HDPE). Among three catalysts, meso MFI revealed the highest catalytic efficiency for the production of aromatic hydrocarbons from catalytic pyrolysis of YP or HDPE due to its effective pore structure, large channels, and high acidity. Moreover, meso MFI showed the highest synergistic formation of aromatic hydrocarbons during the catalytic co-pyrolysis of YP and HDPE as a result of hydrogen donating effect of HDPE and catalytic interactions between YP- and HDPE-derived pyrolyzates. The amounts of solid residue obtained from the catalytic co-pyrolysis of YP and HDPE over meso MFI were also much lower than their theoretical yields.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Meso-MFI catalyzed pyrolysis of yellow poplar gave high aromatic hydrocarbon yield. </LI> <LI> MFI pore structure, large pore size and strong acidity cause high aromatization. </LI> <LI> Significant synergy occurred between yellow poplar and HDPE over meso-MFI catalyst. </LI> <LI> Catalytic pyrolysis efficiency is a strong function of H/C<SUB>eff</SUB> ratio of feedstock. </LI> </UL> </P>