检索结果-南通市图书馆

Journal of Coastal Life Medicine 2014年第11期 849-854页

作者： Maushmi shailesh kumar Sukanya Gopalkrishnan Department of Pharmaceutical Biotechnology Shobhaben Pratapbhai Patel School of Pharmacy and Technology ManagementSVKM’S NMIMSVile Parle westMumbai-400056India

Objective:To test three marine sponges Halichondria glabrata Keller,1891;Spirastrellapachyspira(***)Levi,1958 and Cliona lobata Hancock,1849 for the presence of the acetylcholinesterase(AChE)in both young and developed samples from western coastal area of *** methanolic extract was selected for anti/pro angiogenic ***:They were evaluated for AChE activity using Ellman’s assay based on production of yellow colored *** of the enzyme was planned using ammonium sulphate precipitation and characterization by sodium dodecyl sulfate polyacrylamide gel *** membrane(ChAM)assay model was used for angiogenic/antiangiogenic ***:All the three sponges showed good specific enzyme activity and *** contained maximum specific enzyme *** percent of ammonium sulphate precipitation of crude protein sample gave single band at 66 kDa corresponding to the true *** assay was performed at 62.5,125.0 and 250.0μg/*** beyond 250μg/mL extract showed toxic response with anti angiogenic activity at all the ***:AChE activity was detected in all *** showed good anti-angiogenic response at 62.5μg/*** was highly toxic affecting microvasculature of ChAM as well as normal growth and development of the embryo at 500μg/*** further characterization of bioactive compounds from the extract of ***,the compounds can be developed for anti tumor activity.

关键词： Halichondria glabrata Keller Spirastrella pachyspira Levi Cliona lobata Hancock Acetylcholinesterase Chorioallantoic membrane Antiangiogenic activity Sodium dodecyl sulfate polyacrylamide gel electrophoresis

Mathematical Modeling of Diffusion Phenomenon in a Moderately Constricted Geometry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics 2011年第2期2卷 241-246页

作者： shailesh Mishra Narendra kumar Verma Shafi Ullah Siddiqui 不详

The incorporation of fluid flow through modelled normal and stenosed capillary-tissue exchange system has highlighted issues that may have major applications for the study of diffusion phenomenon. Results clearly demonstrate the important roles played by various physiological characteristics and diffusion variables involved in the analysis on blood flow. Assessment of the severity of the disease could be made possible through the variation of a parameter named as retention parameter. An attempt has been made to study the effects of local variation of viscosity on flow, wall-shearing stress and distribution of dissolved material in diseased artery as compared to the normal.

关键词： Stenosis Diffusion Wall Shear Stress Viscosity Retention Parameter

A SUSPENSION MODEL FOR BLOOD FLOW THROUGH A CATHETERIZED ARTERY

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Biomathematics 2012年第5期5卷 21-35页

作者： shailesh MISHRA NARENDRA kumar VERMA S. U. SIDDIQUI Department of MathematicsHarcourt Butler Technological Institute Kanpur-208002 India

The present work is concerned with the analysis of an axi-symmetric flow of blood through coaxial tubes where the outer tube has an axially symmetric mild stenosis and the inner tube has a balloon which is axi-symmetric in nature. The mild stenosis approximation is used to solve the present problem. The effect of the volume fraction density of the particles, the maximum height attained by the balloon, the radius of the inner tube, which keeps the balloon in position k, and the axial displacement of the balloon have been studied. Flow parameters such as the resistive impedance, the wall shear stress distribution in the stenotic region and its magnitude at the stenosis throat have been computed for different parameters. It is observed that the resistance to flow decreases with increasing values of the axial displacement of the balloon, while the resistance to flow increases with the volume fraction density of the particles, the radius of the inner tube, which keeps the balloon in position k, and the maximum height attained by the balloon. The wall shear stress distribution in the stenotic region possesses a character similar to the resistance to flow with respect to any parameter.

关键词： Blood now stenosis resistive impedance wall shear stress suspension.

Effect of Slip Velocity on Blood Flow through a Catheterized Artery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics 2011年第6期2卷 764-770页

作者： Narendra kumar Verma shailesh Mishra Shafi Ullah Siddiqui Ram Saran Gupta 不详

A mathematical model for pulsatile flow of blood in a catheterized artery in presence of an axisymmetric stenosis with a velocity slip at the constricted wall is proposed. The expressions for the flow characteristics, velocity profiles, the flow resistance, the wall shear stress, the effective viscosity are obtained in the present analysis. The effects of slip velocity on the blood flow characteristics are shown graphically and discussed briefly.

关键词： Pulsatile Stenosis Catheter Flow Resistance Wall Shear Stress Slip Velocity

The keystone-design perforator-based flap for leg defects: a synthesis of philosophies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plastic and Aesthetic Research 2014年第1期1卷 70-74页

作者： Jerry R.John Jyoshid R.Balan Satyaswarup Tripathy Ramesh kumar Sharma Chandan jadhav Department of Plastic Surgery Post Graduate Institute of Medical Education and Research(PGIMER)Chandigarh 160012India Department of Plastic Surgery Sushruta Institute of Plastic SurgeryElite HospitalsThrissur 680007KeralaIndia.

Aim:The classical keystone-design flap,although elegantly employed for various trunk defects,has limited movement on the *** study aims to modify the keystone–design flaps for leg ***:A keystone-design flap,in which perforators are identified and dissected,is described specifically for elliptical defects overlying the ***:It retains the unique advantages of both the perforator island flap concept as well as the keystone-design ***:The technique as well as the possibilities of raising such flaps over various areas of the leg is outlined.

关键词： Flap keystone leg defect lower extremity reconstruction perforator island flap

On-chip excitation of single germanium vacancies in nanodiamonds embedded in plasmonic waveguides

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Light(Science & Applications) 2018年第1期7卷 446-454页

作者： Hamidreza Siampour shailesh kumar Valery A.Davydov Liudmila F.Kulikova Viatcheslav N.Agafonov Sergey I.Bozhevolnyi Centre for Nano Optics University of Southern DenmarkCampusvej 55Odense M DK-5230Denmark L.F.Vereshchagin Institute for High Pressure Physics Russian Academy of SciencesTroitskMoscow 142190Russia GREMAN Universitéde ToursUMR CNRS CEA 615737200 ToursFrance

Monolithic integration of quantum emitters in nanoscale plasmonic circuitry requires low-loss plasmonic configurations capable of confining light well below the diffraction *** demonstrated on-chip remote excitation of nanodiamond-embedded single quantum emitters by plasmonic modes of dielectric ridges atop colloidal silver *** nanodiamonds were produced to incorporate single germanium-vacancy(GeV)centres,providing bright,spectrally narrow and stable single-photon sources suitable for highly integrated *** electron-beam lithography with hydrogen silsesquioxane(HSQ)resist,dielectric-loaded surface plasmon polariton waveguides(DLSPPWs)were fabricated on single crystalline silver plates to contain those of deposited nanodiamonds that are found to feature appropriate single GeV *** low-loss plasmonic configuration enabled the 532-nm pump laser light to propagate on-chip in the DLSPPW and reach to an embedded nanodiamond where a single GeV centre was *** remote GeV emitter was thereby excited and coupled to spatially confined DLSPPW modes with an outstanding figure-of-merit of 180 due to a~six-fold Purcell enhancement,~56%coupling efficiency and~33μm transmission length,thereby opening new avenues for the implementation of nanoscale functional quantum devices.

关键词： excitation silver thereby