University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
2345-6914
27
2
2016
04
01
Gene Expression Profile of Adherent Cells Derived From Human Peripheral Blood: Evidence of Mesenchymal Stem Cells
105
112
EN
Z.
Fazeli
1 Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
M.
Rajabibazl
2 Department of Clinical Biochemistry, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
S.
Salami
2 Department of Clinical Biochemistry, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
N.
Vazifeh Shiran
3 Department of Hematology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran
SMH.
Ghaderian
4 Urogenital stem cell research center, Shahid Beheshti University of medical sciences, Tehran, Islamic Republic of Iran
MD.
Omrani
4 Urogenital stem cell research center, Shahid Beheshti University of medical sciences, Tehran, Islamic Republic of Iran
Mesenchymal stem cells (MSCs) provide a novel option in cellular therapy and tissue engineering. Recent studies indicated that it is possible to obtain MSCs from peripheral blood by attachment ability to plastic surface. To evaluate adherent cells derived from peripheral blood, their expression profile and surface markers were investigated. The results of RT-PCR indicated that these cells expressed MECP2, SLITRK2, SLITRK4 as well as the neuronal markers Nestin, β III tubulin, NFM, MAP2 and NSE. In the present study, a panel of surface markers were analysed by flow cytometry. These cells display a fibroblast like morphology as well as known sources of MSCs. The results obtained from immune-staining represented that these cells were negative for CD14, CD45, CD15 and CD24, whereas they were positive for CD29, CD44, CD105, CD73, CD166 and CD184. Our data indicated that the peripheral blood could be considered as a source of MSCs with high yield.
Mesenchymal stem cells,Neuronal markers,Expression profile,Immune-phenotyping
https://jsciences.ut.ac.ir/article_56994.html
https://jsciences.ut.ac.ir/article_56994_cd3fafc8b23654aac6943bee814547c8.pdf
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
2345-6914
27
2
2016
04
01
Synthesis and Characterization of Copper(II)-Oxide Nanoparticles from Two Cu(II) Coordination Polymers
113
117
EN
M. J.
Soltanianfard
Department of Chemistry, Faculty of Chemical Science, Firoozabad Branch, Islamic Azad University, Firoozabad, Fars, P.O. Box 74715-117, Islamic Republic of Iran
A.
Firoozadeh
Department of Chemistry, Faculty of Chemical Science, Firoozabad Branch, Islamic Azad University, Firoozabad, Fars, P.O. Box 74715-117, Islamic Republic of Iran
CuO nano particles were obtained by calcination of nano-sized [Cu(C<sub>4</sub>H<sub>4</sub>O<sub>4</sub>)(bipy)(H<sub>2</sub>O)<sub>2</sub>].2H<sub>2</sub>O (1) and [Cu(2‚2′-bipy)](C<sub>4</sub>H<sub>4</sub>O<sub>4</sub>)<sub>0.5</sub>(NO<sub>3</sub>)(H<sub>2</sub>O) (2) which are two Cu(II) coordination polymers. The two coordination polymers [Cu(C<sub>4</sub>H<sub>4</sub>O<sub>4</sub>)(bipy)(H<sub>2</sub>O)<sub>2</sub>].2H<sub>2</sub>O and [Cu(2‚2′-bipy)](C<sub>4</sub>H<sub>4</sub>O<sub>4</sub>)<sub>0.5</sub>(NO<sub>3</sub>)(H<sub>2</sub>O) were synthesized and characterized by Fourier transform infrared spectra (FT-IR spectroscopy), thermal gravimetric (TGA) and differential thermal analyses (DTA). CuO nano particles were characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM).The two coordination polymers obtained possessed nano sizes.
Copper(II) Oxide,nanoparticles,Coordination polymer,Calcination
https://jsciences.ut.ac.ir/article_56997.html
https://jsciences.ut.ac.ir/article_56997_3a49598bff6cd56bd0be06de99f593e0.pdf
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
2345-6914
27
2
2016
04
01
Efficient Synthesis of Dihydropyrimidine and Amidoalkyl Naphthol Derivatives Using Zinc Chloride-Based Deep Eutectic Systems as Solvent & Catalyst
119
127
EN
M.
Mahdipour
Department of Chemistry, Faculty of Sciences, Shahid Bahonar University of Kerman
7616914111, Kerman, Islamic Republic of Iran
H.
Khabazzadeh
Department of Chemistry, Faculty of Sciences, Shahid Bahonar University of Kerman
7616914111, Kerman, Islamic Republic of Iran
E.
Tavakolinejad Kermani
Department of Chemistry, Faculty of Sciences, Shahid Bahonar University of Kerman
7616914111, Kerman, Islamic Republic of Iran
Dihydropyrimidine and amidoalkyl naphthol derivatives have been prepared efficiently in a one-pot synthesis using ZnCl<sub>2</sub>/urea and ZnCl<sub>2</sub>/acetamide deep eutectic systems as reaction medium and homogeneous catalyst. This method offers some advantages such as simple procedure, inexpensive solvent and catalyst and good yields of the final products in short reaction times. The use of non-toxic and environmentally benign catalyst and solvent system are the main remarkable features of this procedure.
Deep eutectic,3, 4-dihydropyrimidine,Amidoalkylnaphthol,Homogeneous catalyst
https://jsciences.ut.ac.ir/article_56998.html
https://jsciences.ut.ac.ir/article_56998_80ca7e2b0a9db75ff1450c8fab1cc070.pdf
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
2345-6914
27
2
2016
04
01
In-vitro Antibacterial Evaluation of Some Fluoroquinolone Derivatives Against Food Borne Bacteria
129
133
EN
N.
Shariatifar
1Department of Environmental of Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
M.
Rezaei
1Department of Environmental of Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
M.
Sayadi
1Department of Environmental of Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
M. H.
Moshafi
2Department of Pharmaceutics, Faculty of Pharmacy, Haft-Bagh Boulevard, Kerman University of Medical Sciences, Kerman, Islamic Republic of Iran
M.
Saeedi
3Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
N.
Mohammadhosseini
5Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
S.
Moghimi
5Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
A.
Foroumadi
5Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
Food poisoning has been emerged as a worldwide health issue and related illness in both developed and developing countries confirms its significance as an important public health priority.<em>In vitro</em> antibacterialevaluationof nine fluoroquinolone derivatives against food borne bacteria including Gram-positive (<em>Staphylococcus aureus</em>) and Gram-negative (<em>Salmonella enterica</em>, <em>Escherichia coli</em>, <em>Yersinia enterocolitica</em>, <em>Vibrio </em><em>cholerae</em>) organisms was developed using agar dilution technique and compared with ciprofloxacin and norfloxacin as reference drugs.Most compounds showed good activity against Gram-positive and the Gram-negative bacteria. All compounds were active against <em>Staphylococcus aureus</em> (MIC=3.12-6.12µg/mL) and compounds 1a, 1c-e, 2a, and 3c(MIC=3.12µg/mL) exhibited excellent antibacterial activity in comparison to ciprofloxacin and norfloxacin (MIC=6.25µg/mL). Fluoroquinolone derivatives exhibited good activity against food borne bacteria and are appropriate candidates for food poisoning prevention.
Antibacterial evaluation,Fluoroquinolone,Food borne bacteria
https://jsciences.ut.ac.ir/article_57001.html
https://jsciences.ut.ac.ir/article_57001_0459e51e7ef6c2f71de6e26dce86cf22.pdf
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
2345-6914
27
2
2016
04
01
Miospore assemblages from Late Ordovician (Katian-Hirnantian), Ghelli Formation, Alborz Mountain Range North-eastern Iran: Palaeophytogeographic and palaeoclimatic implications
135
159
EN
M.
Ghavidel-syooki
Institute of Petroleum Engineering of Tehran University, Tehran, P. O. Box, 11365-4563, Islamic Republic of Iran.
<span>Well-preserved miospore assemblages are recorded from the Late Ordovician (Katian-Hirnantian), Ghelli Formation in Pelmis-gorge at the north-eastern Alborz Mountain The palynomorphs were extracted from siliciclastic deposits which are well-dated by using of marine palynomorphs (acritarchs and chitinozoans). The encountered miospore assemblages consist of 14 genera (28 species: 26 cryptospores and 2 trilete spores). Six new cryptospore taxa are described: Rimosotetras punctata, Rimosotetras granulata, Dyadospora asymmetrica, Dyadospora verrucata, Segestrespora iranense and Imperfectotriletes persianense. The present findings contribute to improving knowledge of origin and onset of development of vegetative cover during the Late Ordovician. The recovery of diverse and abundant cryptospores in the Late Ordovician (Katian-Hirnantian) Ghelli Formation are probably related to increasing input of land-derived sediments during the global sea-level fall linked to the Late Ordovician glaciation, and tolerance of the primitive land plants in a wide range of climatic conditions. These miospore taxa were produced by earliest primitive land plants which probably grew close to the shoreline and washed in from the adjacent areas and produced high amount of miospores. The associated marine palynomorphs consist of acritarchs (13 genera and 18 species), chitinozoans (9 genera and 10 species), prasinophycean algae, scolecodonts and graptolite remains which are not discussed in detail herein. The established chitinozoan biozones of this part of Palaeozoic sequences are Armoricochitina nigerica, Ancyrochitina merga, Tanuchitina elongata and Spinachitina oulebsiri, suggesting the Late Ordovician (Katian-Hirnantian). These chitinozoan biozones are well-known only in peri-Gondwanan Domain, indicating that the study area has been part of this palaeo-continent during the Late Ordovician. </span>
Miospores,Late Ordovician,Palaeo-biogeography,Palaeo-climatology,Alborz Mountain Ranges
https://jsciences.ut.ac.ir/article_57002.html
https://jsciences.ut.ac.ir/article_57002_f34606bf89b5f557cc5858ecc71a752c.pdf
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
2345-6914
27
2
2016
04
01
APG2: a New Version of APG, an Application for Amphibole-Plagioclase Geothermobarometry
161
167
EN
M.
Sayari
Department of Geology, Faculty of Science, University of Isfahan, Isfahan, Islamic Republic of Iran
APG2 is a computer application designed for amphibole-plagioclase geothermobarometry. It is the first updated version of APG and supports 4 thermometer models and 6 barometer models involving either amphibole-plagioclase or amphibole only. APG2 has capability to integrate all 4 thermometer models with 6 barometer models and produce 24 different states which user can export them all at once to an Excel table. APG2 works in both graphical and analytical way. APG2 is also able to calculate the H<sub>2</sub>O content and Oxygen fugacity (log<em>f</em>O<sub>2</sub>) of magma hosting amphiboles.
APG2 application,Amphibole,Plagioclase,Geothermobarometry
https://jsciences.ut.ac.ir/article_57003.html
https://jsciences.ut.ac.ir/article_57003_b50b4db72e52d50bd58fb652f4cd9884.pdf
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
2345-6914
27
2
2016
04
01
Estimation of Scale Parameter Under a Bounded Loss Function
169
173
EN
N.
Sanjari Farsipour
Department of Statistics, Faculty of Mathematical Sciences, Alzahra University, Tehran, Islamic Republic of Iran
The quadratic loss function has been used by decision-theoretic statisticians and economists for many years. In this paper the estimation of scale parameter under a bounded loss function, which is adequate for assessing quality and quality improvement, is considered with restriction to the principles of invariance and risk unbiasedness. An implicit form of minimum risk scale equivariant estimator and Bayes estimators are obtained. Fisher’s problem of the Nile as an example is included.
Best invariant estimator,Bayes estimator,Scale parameter,Bounded loss function,Fisher’s problem of the Nile
https://jsciences.ut.ac.ir/article_57004.html
https://jsciences.ut.ac.ir/article_57004_098efcfea12d14d2c1c50f822f764e4e.pdf
University of Tehran
Journal of Sciences, Islamic Republic of Iran
1016-1104
2345-6914
27
2
2016
04
01
Studying Transition Behavior of Neutron Point Kinetics Equations Using the Lyapunov Exponent Method
175
186
EN
M.
Seidi
1 Department of Physics, Faculty of Sciences, Ilam University, P.O.Box: 516-69315, Ilam, Islamic Republic of Iran
R.
Khodabakhsh
2 Department of Physics, Faculty of Sciences, Urmia University, P.O.Box:165-57153, Urmia, Islamic Republic of Iran
S.
Behnia
3 Department of Physics, Urmia University of Technology, P.O.Box:419-57157, Urmia, Islamic Republic of Iran
The neutron density is one of the most important dynamical parameters in a reactor. It is directly related to the control and stability of the reactor power. Any change in applied reactivity and some of dynamical parameters in the reactor causes a change in the neutron density. Lyapunov exponent method is a powerful tool for investigating the range of stability and the transient behavior of the reactor power. In contrast to the other linear stability methods, this method can be used for large perturbations and is not needed to construct Lyapunov function. In this work, the range of stability using Lyapunov exponent method is evaluated for neutron point kinetics equations with six-groups delayed neutrons. Here, effects of four set of applications, namely, step, ramp, sinusoidal, and temperature feedback reactivities on power reactor were investigated with Lyapunov exponent method. The results of qualitative analysis were compared with traditional methods and were in good agreement with other works.
Temperature feedback,Neutron density,Delayed neutron,Lyapunov exponent
https://jsciences.ut.ac.ir/article_57005.html
https://jsciences.ut.ac.ir/article_57005_d86b6ac033d30e208a5d3aea4a087a8d.pdf