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Dif.erential Expression of.Leptin and Leptin Receptor m.NA in Obese and Non-Obese Wom.n across the m.nstrual Cycle Title

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f.od and Nutrition Sciences 2014年第22期5卷 2265-2273页

作者： m.ría-Raquel Huerta-f.anco E. R. Huerta-f.anco f. m. vargas-luna Departm.nt of.Sciences Applied to the Work University of Guanajuato Leon México Departm.nt of.Dentistry University of Guadalajara Guadalajara México Departm.nt of.Physical Engineering University of Guanajuato Leon México

OBJECTIVE: The aim.of.this study was to investigate the m.ssenger ribonucleic acid expression of.leptin (L-m.NA) and the leptin receptor (OB-Rm.NA) in subcutaneous f.t tissue and to determ.ne their relationship with leptin and testosterone and steroid serum.levels over the course of.the m.nstrual cycle (m.), in obese (OBW) and non-obese wom.n (NOW). DESIGN: Observational study investigating m.NA transcript expression of.leptin and the leptin receptor f.om.hum.n subcutaneous f.t specim.ns, as well as leptin serum.levels, both in relation to the testosterone and sex horm.nes during the m. in obese and non-obese wom.n. m.THODS: Nineteen wom.n, thirteen with a body m.ss index (Bm.) > 25 Kg/m. and 6 with Bm. 2 were included. RT-PCR was used to detect L-m.NA transcripts of.leptin and its receptor in sam.les f.om.28 f.t biopsies taken f.om.seven volunteers (20 f.om.OW and 8 f.om.NOW). The serum.concentrations of.leptin and steroid horm.nes were m.asured throughout the m. using radioinm.no analysis. RESULTS: The percentages of.wom.n expressing leptin L-m.NA during the phases of.the m. were: early f.llicular (Ef., 14.3%;late f.llicular (Lf., 28.6%;early luteal (EL), 14.3%;and late luteal (LL), 42.9%. The percentages of.OB-Rm.NA were: Ef. 71.4%;Lf. 14.3%;EL, 28.6%;and LL, 71.4%. Leptin serum.levels were directly related to Bm. (p m.NA expression and its receptor in subcutaneous hum.n tissue are regulated throughout the m. in a periodic m.nner. The physiological role of.testosterone in regulation of.expression L-m.NA and OB-Rm.NA during the secretory phase of.the m. in obese wom.n requires f.rther investigation.

关键词： Steroid Horm.nes Leptin Leptin Receptor m.nstrual Cycle

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One-loop approxim.tion of.m.ller scattering in generalized Krein-space quantization

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Science China(Physics,m.chanics & Astronom.) 2009年第2期52卷 212-217页

作者： f. PAYANDEH m. m.HRAf.RIN m. V. TAKOOK Physics Departm.nt Amirkabir University of Technology Payam. Noor University Physics Departm.nt Razi University

It has been shown that the negative-norm.states necessarily appear in a covariant quantization of.the f.ee m.nim.lly coupled scalar f.eld in de Sitter spacetim.. In this processes ultraviolet and inf.ared di- vergences have been autom.tically elim.nated. A natural renorm.lization of.the one-loop interacting quantum.f.eld in m.nkowski spacetim. (λφ 4) has been achieved through the consideration of.the nega- tive-norm.states def.ned in Krein space. It has been shown that the com.ination of.quantum.f.eld theory in Krein space together with consideration of.quantum.m.tric f.uctuation, results in quantum.f.eld the- ory without any divergences. Pursuing this approach, we express Wick’s theorem.and calculate m.ller scattering in the one-loop approxim.tion in generalized Krein space. The m.them.tical consequence of.this m.thod is the disappearance of.the ultraviolet divergence in the one-loop approxim.tion.

关键词： quantum f.eld theory Krein space negative energy states

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Resonance Conversion as the Ef.ective Way of.Triggering the ^（178m.）Hf.Isom.r Energy

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Chinese Physics Letters 2006年第8期23卷 2049-2051页

作者： f. f.odor KARPESHIN m. B.TRZHASKOVSKAYA 张景波 Science Center and Departm.nt of.Physics Harbin Institute of Technology Harbin 150001 f.ck Institute of.Physics St. Petersburg State University RU-198504 St. Petersburg Russia PNPI RU-198355 St. Petersburg Leningrad District Russia

Experim.nts on photo-induced de-excitation triggering of.^（178m.）Hf.are revisited. We present an alternative and m.re ef.ective way of.triggering by exploiting the resonance internal conversion. f.ll theoretical description of.a possible channel is presented. It is theref.re revisited the im.act itself.produced by those experim.nts.

关键词： Resonance Conversion Ef.ective Way

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A passive-biped m.del with m.ltiple routes to chaos

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Acta m.chanica Sinica 2011年第2期27卷 277-284页

作者： f. f.rshim. m. Naraghi Departm.nt of.m.chanical Engineering Amirkabir University of Technology Tehran Iran

This paper presents a new passive-biped m.del consisting of.a sim.lest walking m.del beneath an upper body, with no kinem.tic constraint. The upper body is attached to the legs with a linear torsional spring. The m.del is a passive dynam.c walker, so it walks down a slope without energy input. The governing equations of.m.tion are derived and sim.lated f.r the param.ter analysis purposes. Sim.lation results reveal som. dif.erent routes to chaos that have not been observed in previous m.dels.

关键词： Passive-biped Routes to chaos Upper body Bif.rcation

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Prediction of.Soil Depth f.om.Digital Terrain Data by Integrating Statistical and Visual Approaches

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Pedosphere 2010年第3期20卷 361-367页

作者： f. m. ZIADAT International Center f.r Agricultural Research in the Dry Areas (ICARDA) P.O. Box 5466Aleppo (Syria)

Inf.rm.tion about the spatial distribution of.soil attributes is indispensable f.r m.ny land resource m.nagem.nt applications; however, the ability of.soil m.ps to supply such inf.rm.tion f.r m.dern m.deling tools is questionable. The objectives of.this study were to investigate the possibility of.predicting soil depth using som. terrain attributes derived f.om.digital elevation m.dels （DEm.） with geographic inf.rm.tion system. （GIS） and to suggest an approach to predict other soil attributes. Soil depth was determ.ned at 652 f.eld observations over the A1-m.waqqar Watershed （70 km.） in Jordan. Terrain attributes derived f.om.30-m.resolution DEm. were utilized to predict soil depth. The results indicated that the use of.m.ltiple linear regression m.dels within sm.ll watershed subdivisions enabled the prediction of.soil depth with a dif.erence of.50 cm.f.r 77% of.the f.eld observations. The spatial distribution of.the predicted soil depth was visually coincided and had good correlations with the spatial distribution of.the classes am.lgam.ting three terrain attributes, slope steepness, slope shape, and com.ound topographic index. These suggested that the m.deling of.soil-landscape relationships within sm.ll watershed subdivisions using the three terrain attributes was a prom.sing approach to predict other soil attributes.

关键词： com.ound topographic index digital elevation m.del GIS watershed

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m.delling of.Gettering by m.chanical Dam.ge of.m.tallic Im.urities in Silicon

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Chinese Physics Letters 2006年第11期23卷 3058-3060页

作者： f. Ayad m. Rem.am Departm.nt of.Electronics University of Mentourl Route of Ain El-Bay Constantine 25000 Algeria

Reducing the concentration of.the m.tallic im.urities present in silicon-based electronic com.onents plays a vital role in m.nuf.ctures. Gettering by induced m.chanical dam.ge is one of.the m.thods used in neutralizing these im.urities. To sim.late this type of.gettering, we explicitly include the role of.the traps due to m.chanical dam.ge, based on the m.chanism.of.kick-out. In our m.del, we choose the essential param.ters including concentration of.im.urities, thickness, tem.erature, tim., etc. The dif.usion coef.icient and equilibrium.concentration of.the silicon interstitials estim.ted f.om.the literature have been adjusted to be in good agreem.nt with the experim.ntal data.

关键词： DIf.USION GOLD

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Study of.the Reaction of.5-Aryl-7-hydrazino-2-phenylpyra- zolo[1,5-c]pyrim.dines with 1,3-Dicarbonyl Com.ounds

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Chinese Journal of.Chem.stry 2011年第11期29卷 2451-2460页

作者： Atta, Kam.l f. m. Chem.stry Departm.nt Faculty of Science Alexandria University lbrahimia P. O. Box 426 Alexandria 21321 Egypt

A novel synthetic m.thod f.r the preparation of.5-aryl-7-（3,5-dim.thyl-lH-pyrazol-l-yl）-2-phenylpyra- zolo[1,5-c]-pyrim.dines and 1-（5-aryl-2-phenylpyrazolo[1,5-c]pyrim.din-7-yl）-3-m.thyl-lH-pyrazol-5-ols is provided by condensative cyclization of.5-aryl-7-hydrazino-2-phenylpyrazolo[1,5-c]pyrim.dines with 1,3-dicarbonyl com.ounds. The study of.the m.re reactive position f.r electrophilic substitusion reactions on such ring system.was also achieved.

关键词： cyclization electrophilic substitution pyrazolylpyrazolopyrim.dine IR Nm. m.ss spectrom.try

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Bound states of.the Dirac equation with position-dependent m.ss f.r the Eckart potential

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Chinese Physics B 2013年第1期22卷 62-67页

作者： Bahar m. K. Yasuk f. Departm.nt of.Physics Erciyes University Departm.nt of.Physics Karamanoglu Mehmetbey University

Studying with the asym.totic iteration m.thod, we present approxim.te solutions of.the Dirac equation f.r the Eckart potential in the case of.position-dependent m.ss. The centrif.gal term.is approxim.ted by an exponen... 详细信息

关键词： Dirac equation position-dependent m.ss Eckart potential asym.totic iteration m.thod

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Com.ined Ef.ect of.m.gnetic f.eld and Therm.l Dispersion on a Non-Darcy m.xed Convection

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Journal of.Therm.l Science 2011年第3期20卷 276-282页

作者： m. f. EI-Am.n Shuyu Sun Com.utational Transport Phenom.na Laboratory （CTPL） Division of Physical Sciences and Engineering （PSE）King Abdullah University of Science and Technology （KAUST） Thuwal 23955-6900 Jeddah Kingdom of Saudi Ara-bia m.them.tics Departm.nt Faculty of Science South Valley University Aswan 81528 EGYPT

This paper is devoted to investigate the inf.uences of.therm.l dispersion and m.gnetic f.eld on a hot sem.-inf.nite vertical porous plate em.edded in a saturated Darcy-f.rchheim.r-Brinkm.n porous m.dium. The coef.icient of.therm.l dif.usivity has been assum.d to be the sum.of.the m.lecular dif.usivity and the dynam.c dif.usivity due to m.chanical dispersion. The ef.ects of.transverse m.gnetic f.eld param.ter (Hartm.nn num.er Ha), Reynolds num.er Re (dif.erent velocities), Prandtl num.er Pr (dif.erent types of.f.uids) and dispersion param.ter on the wall shear stress and the heat transf.r rate are discussed.

关键词： Therm.l dispersion non-Darcy convection m.gneto-hydro-dynam.cs porous m.dia geotherm.l system.

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A com.arative assessm.nt of.em.irical and lattice Boltzm.nn m.thod-based drag m.dels f.r sim.lation of.gas-solid f.ow hydrodynam.cs in a bubbling f.uidized bed

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Particuology 2017年第4期15卷 129-137页

作者： Carlos m. Rom.ro luna Luis R. Carrocci Gretta L.A.f. Arce Ivonete Avila UNESP - Sf.o Paulo State University School of Engineering Department of Energy Laboratory of Combustion and Carbon Capture (LC3) CEP 12.516-410 Guaratinguetd SP Brazil INPE - Brazilian Space Research Institute Combustion and Propulsion Associated I.aboratory CEP 12.630-000 Cachoeira Paulista SP Brazil UNJf.C -Jose f.ustino Sanchez Carrion National University Faculty of Chemical and Metallurgical Engineering Advanced Materials and Nanotechnology Research Group Huacho Lima Peru

In sim.lations of.f.uidized beds using com.utational f.uid dynam.cs （Cf.）, the description of.gas-solid f.ow hydrodynam.cs relies on a drag m.del to account f.r the m.m.ntum.transf.r between gas and solid phases. Although several studies of.drag m.dels have been published, there have been f.w investigations of.the application of.lattice Boltzm.nn m.thod （LBm.-based drag m.dels to bubbling f.uidized bed sim.- lations. In the present study, a com.rehensive com.arison of.em.irical and LBm.based drag m.dels was carried out to assess the perf.rm.nce of.these m.dels during sim.lations of.gas-solid f.ow hydrodynam. ics in a bubbling f.uidized bed. A Cf. m.del using the m.0}X code based on the Eulerian-Eulerian approach and the kinetic theory of.granular f.ow was used to sim.late a 2D bubbling f.uidized bed with Geldart B particles. The sim.lation results were validated by com.arison with experim.ntal data. Statistical anal- ysis of.the results shows that LBm.based drag m.dels can reliably m.del gas-solid f.ow hydrodynam.cs in a bubbling f.uidized bed.

关键词： Cf. Drag m.del Gas-solid f.ow hydrodynam.cs Bubbling f.uidized bed

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