Molecular Polar Surface Area, Total Solvent Accessible Surface Area (SASA), Heat of Formation, and Gamma-Ray Attenuation Properties of Some Flavonoids

The chemical and physical characteristics of several flavonoid compounds such as geraniol, thymoquinone, betaine, apigenin, N-acetylcysteine, catechin, l-carnosine, epigallocatachin, and saponarin were examined in this work. Numerous molecular properties of all flavonoid compounds used in this study were calculated using the Calculate Molecular Properties module of Accelrys Discovery Studio v20.1.0.19295.0. These properties included molecular polar surface area, total solvent accessible surface area, and heat of formation. We used the MCNPX general-purpose Monte Carlo code in combination with the Phy-X PSD software to determine gamma-ray interaction parameters such as attenuation coefficients, effective atomic numbers, and buildup factors. The findings indicate that the flavonoids’ elemental compositions have a direct effect on their chemical and physical properties. Additionally, a synergistic interaction of chemical and physical behaviors has been observed. Among the flavonoids studied, saporanin was shown to have the highest polar surface area and solvent accessible surface area, as well as the highest stability. Additionally, saporanin had the strongest gamma-ray attenuation characteristics across a broad photon energy range. It may be inferred that saporanin’s elemental structure enables a synergistic relationship between its chemical and physical characteristics. The findings of this study may contribute to the evaluation of saporanin’s hypoglycemic, antibacterial, and hepatoprotective effects. Copyright © 2022 Tekin, ALMisned, Issa, Kasikci, Arooj, Ene, Al-Buriahi, Konuk and Zakaly.Princess Nourah Bint Abdulrahman University, PNU: PNURSP2022R149The authors express their sincere gratitude to Princess Nourah bint Abdulrahman University Researchers Supporting Project Number (PNURSP2022R149) and Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia

Characteristic Properties of Dy-Eu-Ag co-Doped TiO2 Nanoparticles Prepared by Electrospinning Processes

International Conference on Computational and Experimental Science and Engineering (ICCESEN) -- OCT 25-29, 2014 -- Antalya, TURKEYWOS: 000363011700088TiO2 with high photoactive wide band gap energy semiconductor has been studied intensively for its attractive applications as photo catalyst and solar cell. TiO2 has three kinds of different crystal structures; anatase, brookite and rutile. TiO2-nanoparticles could become valuable light emitting materials when they are doped with highly luminescent rare earth ions. In this study, Dy-Eu-Ag co-doped TiO2 nano particles were prepared by electrospinning method. The crystal structures of nanofibers were determined X-Ray Diffraction device (XRD), morphology of the samples were analyzed by scanning electron microscope (SEM), and the optical properties of the samples were determined by ultraviolet/visible spectrometer (UV/VIS) measurements. Electrical and electronic properties of the sampled were determined using the data obtained from four point prob technique (FPPT).Turkish Scientific and Technologic Research Council [TUBITAK] [110M344]; Afyon Kocatepe University [10.MUH.04]This work was supported by Turkish Scientific and Technologic Research Council [TUBITAK PROJECT-110M344] and Afyon Kocatepe University via Scientific Research Projects (No: 10.MUH.04

THE COMPARATIVE ANALYSIS ON THE OVERVIEW OF HAIR GOAT BREEDINGS TO SUSTAINABLE FOREST RESOURCES MANAGEMENT

Goat breedings in Turkey is a traditional profession dating back centuries which is carried out in and around forests of rural regions. The purpose of this study was to determine the factors with an impact on sustainable natural resource management based on the opinions of goat breeders and to put forth the contributions that may be provided to establish a sustainable management. The study will contribute to establishing a sustainable goat breeding system in Turkey as well as the management of sustainable forest resources. In this scope, the study was carried out in two different areas in the Mediterranean region of Turkey where goat breeding is widespread. The opinions of goat breeders on demographics, socioeconomic, hair goat breeding and sustainable forest resources management were acquired via survey method and used as the primary data of the study. Descriptive statistics such as frequency, percentage and crosstab values along with Mann-Whitney U Test, Chi-Square Test of Independence and Multivariate Linear Regression Analysis were used as the method. It was determined based on the study results that grazing in forest area is the most important problem for goat breeders and various other problems were also observed related to cooperation with the forest administration. It was observed that goat breeding is carried out via traditional methods by families that are above middle age. The findings indicate that the number of goat breeders decrease as a result of increasing age due to interventions for preventing damages given to trees in the forest by goats during grazing, decrease in the education level and the duration of experience in this profession

Synthesizing of (Bi2O3)(1-x-y)(Ho2O3)(x)( Dy2O3)(y) Electrolytes for Intermediate-Temperature Solid Oxide Fuel Cells

WOS: 000371642600025In present study, Ho2O3 and Dy2O3 doped Bi2O3 composite materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs) were investigated. (Bi2O3)(1-x-y)(Ho2O3)(x)(Dy2O3)(y) ternary systems (x = 0.11, 0.13, 0.15 and y = 0.01, 0.03, 0.05, 0.07) were fabricated using conventional solid-state synthesis techniques. The samples were characterized by means of X-ray powder diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, differential thermal analysis/thermal gravimeter, and the four-point probe technique. X-ray powder diffraction measurements indicated that all samples have the stable fluorite type face centered cubic (fcc) delta-Bi2O3 phase. Scanning electron microscopy micrographs of all of the samples showed that grain size distribution was uniform. Four-point probe technique measurements showed that the conductivity of the samples increase with increase of temperature. Additionally, it has been found that the maximum conductivity values of all samples fall in a range 8.4 4 x 10(-2)-4.60 x 10(-1) S cm(-1) and their conductivity values corresponding to the intermediate-temperature region vary in the range 1.65 x 10(-3)-2.30 x 10(-1) S cm(-1). The activation energy values of the samples were calculated from log sigma graphics versus 1000/T using the Arrhenius equation. It was found that there is a good agreement between the activation energy values and conductivity values.TUBITAK [BIDEB 2211/C]The authors would like to thank TUBITAK, for this study has been supported by TUBITAK with program number BIDEB 2211/C

Effect of sample storage on stability of salivary glutathione, lipid peroxidation levels, and tissue factor activity

Saliva samples are often required to be stored for longer periods of time either because of the project protocol or because of lack of funding for analysis. The effects of 6 months storage (fresh, 30, 60, 90 120, 150, and 180d) on the stability of salivary reduced glutathione (GSH), lipid peroxidation (LPO) and 90days of storage (fresh, 15, 30, 60, and 90d) on the stability of salivary tissue factor (TF) activity and the stability of saliva imprint samples at 20 C were evaluated in this study. Salivary GSH, malondialdehyde (MDA) levels as an index of LPO, and TF activities were determined using the methods of Beutler, Yagi, and Quick, respectively. Saliva imprint samples were stained with Giemsa and microscopically examined. Salivary GSH levels and TF MDA levels increased significantly after 6 months of storage at -20 C. Leucocyte, epithelium and bacterium cell counts did not significantly change at the end of 90 d of storage. Saliva samples may be stored up to 1 month at -20 C for LPO assay. For cytological examinations, saliva samples may be stored for 90 d at -20 C. Further studies are needed to determine the stability of salivary GSH, and salivary TF activity stored less than 30 days at -20 C. On the other hand, if saliva samples are required to be stored, to avoid the changes because of different storage periods, we recommend that they must be stored under the same circumstances and in the same time period. J. Clin. Lab. Anal. 23:93-98, 2009. (C) 2009 Wiley-Liss, Inc