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WIENER POLYNOMIALS AND WIENER INDICES OF THE TRANSFORMATION GRAPHS
S. B. Chandrakala,B. SOORYANARAYANA,K. Manjula,Ismail Naci CANGUL 장전수학회 2020 Advanced Studies in Contemporary Mathematics Vol.30 No.4
Topological graph indices are proven to be one of the most useful mathematical tools in the study of graphs, especially molecular graphs. Probably the most famous one is the Wiener index which was primarily used in determining the boiling points of the isomers of alkane molecules. The Wiener polynomial of G, denoted by W(G; q) is dened by W(G; q) = P fu;vgV (G) qd(u;v) where d(u; v) is the distance between the vertices u and v. The Wiener index W(G), a distance based graph invariant, is given by W(G) = P fu;vgV (G) d(u; v). In this paper, mo- tivated by the above facts, the Wiener polynomial and Wiener index of transformation graph G+++ are determined when G is isomorphic to Pn; Cn; K1;n; Kn; Wn+1, the comb and nally the tadpole graph. We have also determined the Wiener polynomial and Wiener index of trans- formation graphs Gxyz of G when G isomorphic to Pn and Cn. Finally, the formula for W(G++ ; q) is given.
Lee, S.H.,Lee, H.K.,Kim, C.,Kim, Y.K.,Ismail, T.,Jeong, Y.,Park, K.,Park, J.W.,Kwon, O.S.,Kang, B.S.,Lee, D.S.,Park, M.J.,Park, D.S.,Lee, H.S. Academic Press 2016 Biochemical and biophysical research communication Vol.477 No.4
Alternative splicing is a major mechanism regulating pattern of gene expression through the production of multiple mRNAs from a single gene transcript. Any misregulation can cause various human diseases and also have severe effects on embryogenesis. SRSF1 is one of the critical factors regulating alternative splicing at many stages of vertebrate development and any disturbance in SRSF1 leads to serious consequences. In current study, we investigated the effects of loss of the SRSF1 gene using antisense morpholino oligonucleotides (MO) in Xenopus embryogenesis. It is evident from the results of RT-PCR and whole-mount in situ hybridization that SRSF1 is a maternal gene having strong expression in head, eyes and central nervous system. Moreover, SRSF1 morphants exhibited malformed phenotypes, including miscoiled guts, heart and cartilage formation, edema in the head and heart, and small eyes. Especially, in SRSF1 morphants, bone cartilage formation was reduced in the brain and Nkx-2.5 expression was dramatically reduced in the heart of SRSF1 morphants. In addition, a dramatic reduction in functional chordin RNA in SRSF1 morphants was observed suggesting that chordin is one of the targets of SRSF1. Thus, we concluded that SRSF1 is an essential factor for pattern formation including heart, cartilage and germ layers through the regulation of specific genes.
New Primary Standards for Establishing SI Traceability for Moisture Measurements in Solid Materials
Heinonen, M.,Bell, S.,Choi, B. Il,Cortellessa, G.,Fernicola, V.,Georgin, E.,Hudoklin, D.,Ionescu, G. V.,Ismail, N.,Keawprasert, T.,Krasheninina, M.,Aro, R.,Nielsen, J.,Oğ,uz Aytekin, S.,Ö,ste Springer-Verlag 2018 International journal of thermophysics Vol.39 No.1
Suhaila M Sanip,A. F. ISMAIL,P. S. GOH,B. C. NG,M. S. ABDULLAH,T. SOGA,M. TANEMURA,H. YASUHIKO 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2010 NANO Vol.5 No.4
The functionalization of multiwalled carbon nanotubes (MWNTs) with β cyclodextrin (β-CD) is described. The functionalization using β-CD treatment is an environmentally friendly and nondestructive method to modify carbon nanotubes. It was observed that the degree of functionalization increases with increasing ratios of β-CD as seen from the Raman analysis. The Raman spectra also indicated that the nanotubes walls were not damaged. The presence of functional groups associated with β-CD on the functionalized MWNTs indicated that the cyclodextrin groups were found to be adsorbed at the surface of the nanotubes walls. Mixed matrix membrane (MMM) was prepared by a phase inversion process. Enhanced selectivity and permeability for CO2 over CH4 was observed for MMM prepared using functionalized MWNTs.
Irwanto M.,Gomesh N.,Irwan Y. M.,Ismail B.,Leow W. Z.,Hardi S.,Saleh K.,Alam H.,Suwarno 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.3
An inverter is an important component used to generate alternating current (AC). One of the most common types is the multilevel inverter (MLI), which generates an AC multilevel voltage waveform. This device is designed from a simple topology with the power switching components in the full-bridge circuit connected in a series connection. The circuit consists of a total harmonic distortion (THD), voltage total harmonic distortion (VTHD), and current total harmonic distortion (CTHD). However, creating a suitable MLI technique capable of generating AC multilevel voltage waveform to achieve the lowest harmonic is one of the problems commonly faced. Therefore, this research aims to design a voltage level time division based on maximum pulse width to reduce THD on a multilevel transformerless photovoltaic inverter (TPVI) system. The direct current supplied to this is from the photovoltaic (PV) module. This research also aims to generate the phase delay time and pulse width of waves by proposing a division factor, n, proposed through mathematical modeling and simulated using SIMULINK Matlab. The results showed that the modeled PV is valid to the datasheet, therefore, it is suitable to supply the 11-level TPVI system. Furthermore, the proposed technique has the ability to generate the AC 11-level voltage waveform with diff erent division factors, n . The lowest VTHD and CTHD are achieved at values of 8, respectively.
Bioactive Prenylated Flavonoids from the Stem Bark of Artocarpus kemando
Seo, Eun-Kyoung,Lee, Dong-Ho,Shin, Young-Geun,Chai, Hee-Byung,Navarro, Hernan-A.,Kardono, Leonardus B.S.,Wani, Mansukh, C.,Rahman, Ismail,Cordell, Geoffrey-A.,Farnsworth, Narman-R.,Pezzuto, John-M.,Ki The Pharmaceutical Society of Korea 2003 Archives of Pharmacal Research Vol.26 No.2
Four known prenylated flavonoids, artonins E (1) and O (2), artobiloxanthone (3), and cycloartobiloxanthone (4), were isolated from the stem bark of Artocarpus kemando by bioassayguided fractionation using the DNA strand-scission and the KB cytotoxicity assays as monitors. Compounds 1 and 3 exhibited strong DNA strand-scission activity, and all four compounds were found to be cytotoxic.