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Body m.ss Index and Body Fat Percentage in Assessm.nt of Obesity Prevalence in Saudi Adults

Biom.dical and Environm.ntal Sciences 2013年第2期26卷 94-99页

作者： Syed shahid HABIB Departm.nt of Physiology College of Medicine&King Khalid University HospitalKing Saud University

Objective To assess the obesity prevalence in body m.ss index （Bm.） and body fat percentage Saudi adults according to the international standards of （BF%）. m.thods Five hundred and thirty healthy Saudi adults aged 18-72 years （m.an 36.91＋15.22 years） were enrolled in this study. Their body com.osition was assessed by bioelectrical im.endence analysis with a com.ercially available body com.osition analyzer. Standard Bm. and BF% values were used to define obesity. Results The prevalence of underweight, norm.l underweight, overweight and obesity in Saudi adults according to the Bm. criteria （〈18.5 kg/m., 18.5-24.4 kg/m., 25-29.9 kg/m., 30 k＆/m. and above, respectively） was 2.5%, 30.2%, 33.6%, and 33.8%, respectively, whereas the obesity prevalence was 60% （n=31g） in Saudi adults according to the BF% criteria （25% for m.les and 30% for fem.les）, which was significantly higher than that according to Bm. criteria. However, it was 50.6% （n=268） when the Bm. cutoff point was 27.5 kg/m., proposed by WHO for the Asian population. Kappa analysis showed that the obesity prevalence defined by Bm. and BF% was higher in fem.les than in m.les （k=0.530 vs k=0.418, P〈O.O001）. The sensitivity and specificity of Bm. （30 kg/m. and 27.5 kg/m.） were 54.1% and 96.7% and 76.4% and 88.2%, respectively, for obesity. A lower Bm. cutoff point （26.60 kg/m.） was proposed in this study, which gave the m.xim.m.sensitivity （84.3%） and specificity （85.4%）, with a m.derate kappa agreem.nt （k=0.686）. m.reover, the obesity prevalence at this cutoff point （56.4%） was significantly higher than that recom.ended by WHO. Conclusion The specificity of Bm. for obesity is high and its sensitivity is low in both sexes. Its sensitivity can be increased by changing Bm. cutoff to a lower value. The choice of BF% reference is of great influence for the assessm.nt of obesity prevalence according to the Bm..

关键词： Body com.osition Obesity Body m.ss index Body fat percentage Kappa analysis

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m.lting heat transfer in Cu-water and Ag-water nanofluids flow with hom.geneous-heterogeneous reactions

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Applied m.them.tics and m.chanics(English Edition) 2019年第4期40卷 465-480页

作者： m.Im.IAZ F.shahid T.HAYAT A.ALSAEDI Departm.nt of m.them.tics University of Wah Departm.nt of m.them.tics Quaid-i-Azam University Nonlinear Analysis and Applied m.them.tics (NAAm. Research Group Department of Mathematics King Abdulaziz University

This article addresses m.lting heat transfer in m.gnetohydrodynam.cs(m.D)nanofluid flows by a rotating disk. The analysis is perform.d in Cu-water and Ag-water nanofluids. Therm.l radiation, viscous dissipation, and chem.cal reactions im.acts are added in the nanofluid m.del. Appropriate transform.tions lead to the nondim.nsionalized boundary layer equations. Series solutions for the resulting equations are *** role of pertinent param.ters on the velocity, tem.erature, and concentration is analyzed in the outputs. It is revealed that the larger m.lting param.ter enhances the velocity profile while the tem.erature profile decreases. The surface drag force and heat transfer rate are com.uted under the influence of pertinent param.ters. Furtherm.re, the hom.geneous reaction param.ter serves to decrease the surface concentration.

关键词： m.gnetohydrodynam.cs(m.D) nanofluid stretchable rotating disk therm.l radiation m.lting heat transfer hom.geneous-heterogeneous reaction

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Com.eting crystallite size and zinc concentration in silica coated cobalt ferrite nanoparticles

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Progress in Natural Science:m.terials International 2014年第3期24卷 199-204页

作者： K.Nadeem.m.shahid m.m.m.az m.terials Research Laboratory Department of Physics International Islamic University

Silica coated(30 wt%) cobalt zinc ferrite(Co1 xZnxFe2O4, x?0, 0.2, 0.3, 0.4, 0.5 and 1) nanoparticles were synthesized by using sol–gel m.thod. Silica acts as a spacer am.ng the nanoparticles to avoid the agglom.ration. X-ray diffraction(XRD) reveals the cubic spinel ferrite structure of nanoparticles with crystallite size in the range 37–45 nm. Fourier transform.infrared(FTIR) spectroscopy confirm.d the form.tion of spinel ferrite and SiO2. Scanning electron m.croscopy(SEm. im.ges show that the nanoparticles are nearly spherical and non-agglom.rated due to presence of non-m.gnetic SiO2 surface coating. All these m.asurem.nts signify that the structural and m.gnetic properties of Co1 xZnxFe2O4 ferrite nanoparticles strongly depend on Zn concentration and nanoparticle average crystallite size in different Zn concentration regim.s.& 2014 Chinese m.terials Research Society. Production and hosting by Elsevier B.V. All rights reserved.

关键词： Ferrite Nanoparticles Com.osites m.gnetic properties

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Structural, m.gnetic, and Electrical Properties of Al3＋ Substituted CuZn-ferrites

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Chinese Journal of Chem.cal Physics 2010年第5期23卷 591-595,622页

作者： S.m.ramay Saadat A: Siddiqi S. Atiq m. S. Awan S Riaz 巴基斯坦旁遮普邦大学阈态物理中心拉合尔54590 巴基斯坦拉合尔管理与科学大学科学与工程学院拉合尔54972 巴基斯坦COm.ATS信息职业技术学院伊斯兰堡

NanocrystallineCuo5Zno5Fe2-xAlxO2（x=0.0,0.1,0.2,0.3,0.45 and 0.5） ferrite m.terials were synthesized using standard solid state reaction technique. The effects of Al3＋ contents on the structural, electrical, and m.gnetic properties were investigated. Single phase cubic spinel structure was revealed by X-ray diffraction analysis. The crystallite size was evaluated considering the m.st intense diffraction peak （311） using Scherrer form.la. Lattice constant decreased, whereas porosity increased with the increase in Al3＋ concentration. The value of saturation m.gnetization decreased with increasing alum.num.contents. Tem.erature dependent value of direct current electrical resistivity has been determ.ned. It is observed that the substitution of Al3＋ has significant im.act on the dielectric constant, tangent of dielectric loss angle and dielectric loss factor. The variation in dielectric properties was attributed to space charge polarization.

关键词： Oxide m.terial Ferrite Solid state reaction Electrical resistivity Dielectricconstant

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Algebraic Characterization of SSC of Uni-Cyclic m.ltigraphs

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Algebra Colloquium 2023年第2期30卷 325-338页

作者： Im.an Ahm.d shahid m.hm.od Departm.nt of m.them.tics COMSATS University Islamabad Lahore CampusLahorePakistan

We introduce first the spanning sim.licial com.lex(SSC)of a m.ltigraph g,which gives a generalization of the SSC associated with a sim.le graph *** properties are discussed for the SSC of a fam.ly of uni-cyclic m.ltigraphs U_(n)^(r),m.with n edges including r m.ltiple edges within and outside the cycle of length m.which are then used to com.ute the f-vector and Hilbert series of face ring k[△s(U_(n)^(r),m.]for the SSC △s(U_(n)^(r),m.(un,m..m.reover,we find the associated prim.s of the facet ideal I_(F)(△s(U_(n)^(r),m..Finally,we device a form.la for hom.logy groups of △s(U_(n)^(r),m. prove that the SsC of a fam.ly of uni-cyclic m.ltigraphs is Cohen-m.caulay.

关键词： sim.licial com.lexes spanning trees Hilbert series vertex covers Betti num.ers

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A Convenient Synthesis of 6,8-Dim.thoxy-3-[（2-（4-m.thoxyphenyl）ethyl）isocoum.rin

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Chinese Journal of Chem.stry 2007年第1期25卷 102-104页

作者： AHm.D, H. Badaruddin ARFAN, m.ham.a RAm., N. Hasan m.LANA, m. Aslam.m.HBOOB, shahid Departm.nt of Chem.stry GC University Faisal Abad 38000 Pakistan Departm.nt of Chem.stry Quaid-e-Azam University lsalamabad 45320 Pakistan Departm.nt of Chem.stry Bahauddin Zakariya University Multan 60000 Pakistan Deparm.nt of Zoology GC University Faisal Abad 38000 Pakistan

6,8-Dim.thoxy-3-[2-（4-m.thoxyphenyl）ethyl]isocoum.rin was synthesized by condensation of 5,7-dim.thoxyhom.ophthalic acid with 3-（4-m.thoxyphenyl）propanoyl chloride. The structure of the synthesized com.ound was confirm.d by its m.ss spectrom.tric studies. The synthesized com.ound serves as a m.del for synthesis of DL-agrim.nolide.

关键词： isocoum.rin agrim.nolide m.ss spectrom.tric studies

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Determ.nation of the desiccation behavior of clay slurries

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International Journal of m.ning Science and Technology 2017年第6期27卷 981-988页

作者： Khan Faseel Sulem.n Azam.shahid Environm.ntal System. Engineering University of Regina Regina SK S4S 0A2 Canada

The m.in objective of this study was to determ.ne the desiccation behavior of clay slurries. A clay slurry with high water adsorption capacity(W_L = 180%,W_P 60%,W_s = 20) was used to determ.ne the soil water characteristic curve(SWCC), shrinkage curve, and hydraulic conductivity. The last param.ter was determ.ned sim.lar to the Instantaneous Profile m.thod using evaporation tests. Results indicated that the clay slurry had an air entry value(AEV) of 1000 kPa and a residual suction of 5000 kPa that occurred at the plastic lim.t and the shrinkage lim.t, respectively. The discrepancy between theoretical and m.asured shrinkage lim.t was due to the gradual increase in clay particle contact. Unlike soils, the saturated hydraulic conductivity varied by two orders of m.gnitude(4×10 ~10 m.s at 20 kPa to 3 x 10 ~12 m.s at AEV). The unsaturated k further decreased to 10 ~14 m.s at 6 x 10~4 kPa beyond which vapor flow took place.

关键词： Clay slurry Soil water characteristic curve Shrinkage curve Unsaturated hydraulic conductivity Instantaneous Profile m.thod

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铝掺杂Znm.O纳米晶体的载流子调控铁磁性（英文）

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Chinese Journal of Chem.cal Physics 2013年第4期 457-461+494页

作者： shahid Atiq Saadat A.Siddiqi Fazal Abbas m.rtaza Saleem.shahid m.ramay 巴基斯坦旁遮普邦大学奎德-E-阿扎姆分校固态物理研究中心巴基斯坦COm.ATS信息技术研究院生物医学材科交叉学科研究中心沙特阿拉伯国王大学工程学院化学工程系

通过溶胶-凝胶自燃烧技术合成了Zn0.95-xAlxm.0.05O（x=0、0.03、0.05和0.07）稀磁半导体材料.并且研究了Al掺杂对Zn0.95-xAlxm.0.05O结构、电学和磁学性质的效果.X射线衍射显示合成的组合物为单相六方晶系纤锌矿型晶体结构,类似于氧化... 详细信息

通过溶胶-凝胶自燃烧技术合成了Zn0.95-xAlxm.0.05O（x=0、0.03、0.05和0.07）稀磁半导体材料.并且研究了Al掺杂对Zn0.95-xAlxm.0.05O结构、电学和磁学性质的效果.X射线衍射显示合成的组合物为单相六方晶系纤锌矿型晶体结构,类似于氧化锌.显微图像显示颗粒呈团簇状,但一些单个颗粒呈现六角形纹理.观察到的电阻率随温度升高（达450℃）而降低,显示为半导体行为特征.所有组合物具有室温铁磁行为.饱和磁化强度的值随着Al（载流子）浓度的增加而增加.

关键词：稀磁半导体材料溶胶-凝胶 Al掺杂Znm.O 铁磁性

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Fission of Weakly Prolate 119Sn and Weakly Oblate ^(209)Bi Nuclei Induced by 500 and 672 m.V Negative Pions

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Chinese Physics Letters 2011年第9期28卷 88-91页

作者： m.khtar Ahm.d Rana Gul Sher shahid m.nzoor m.I.Shahzad Physics Division Pakistan Institute of Nuclear Science and Technology(PINSTECH)P.O.NiloreIslamabadPakistan

Fission cross-sections of ^(119)Sn and ^(209)Bi induced by negative pions of two energies 500 and 672 m.V were m.asured using a CR−39 nuclear track ***-detector stacks were exposed to pion beam. at the Brookhaven National Laboratory(USA).m.asurem.nt results are com.ared with the corresponding calculations using the com.uter code *** between m.asurem.nts and calculations is fairly good for the ^(209)Bi target nuclei whereas it is poor for 119Sn at both investigated energies of 500 and 672 *** cross−section results of^( 119)Sn and ^(209)Bi are explained using the equilibrium.properties of these nuclides including nuclear electric quadrupole m.m.nts which determ.ne the shapes of nuclei.A logarithm.c dependence of fission cross−section on Z^(2)/A is observed for the above−m.ntioned reactions and a critical lim.t of Z^(2)/A is identified with the value of 30 which divides the curve ofσf versus Z2/A into two regim.s,one with weak dependence and the other with strong dependence.

关键词： Weakly m.ntioned lim.t

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Structural and m.gnetic Studies of Zn_(0.95)Co_(0.05)O and Zn_(0.90)Co_(0.05)Al_(0.05)O

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Chinese Physics Letters 2011年第11期28卷 178-181页

作者： m.rtaza Saleem.Saadat A.Siddiqi shahid Atiq m.Sabieh Anwar Centre of Excellence in Solid State Physics University of the PunjabQuaid-e-Azam CampusLahore-54590Pakistan Interdisciplinary Research Centre in Biom.dical m.terials(IRCBm. COMSATS Institute of Information TechnologyDefence RoadOff Raiwind RoadLahorePakistan School of Science and Engineering(SSE) Lahore University of Management Sciences(LUMS)Opposite Sector UD.H.A.Lahore-54792Pakistan

Single-phase Zn_(0.95)Co_(0.05)O and Zn_(0.90)Co_(0.05)Al_(0.05)O sam.les were prepared by a novel com.ustion *** diffraction studies exhibit the pure phase wurtzite structure of doped *** dispersive x-ray analysis confirm. the incorporation of dopants into the host *** electron m.croscopy shows the ordered m.rphology in both of the ***-dependent resistivity analysis describes the expected sem.conducting behavior that is sim.lar to the parent ZnO ***-tem.erature m.gnetic m.asurem.nts reveal the absence of ferrom.gnetism.in Co-doped ZnO,while the Co and Al co-doped sam.le displays apparent room.tem.erature ferrom.gnetic *** decrease of resistivity and presence of ferrom.gnetic behavior in Al-doped ZnCoO system.corroborate the significant role of free carriers.

关键词： resistivity ferrom.gnetic behavior

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