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Altered physiology of gastrointestinal vagal afferents following neurotraum.

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neural Regeneration Research 2021年第2期16卷 254-263页

作者： Em.ly n.Blanke Gregory m.Holm.s Em.ly m.Besecker Departm.nt of Health Sciences Gettysburg CollegeGettysburgPAUSA Departm.nt of neural and Behavioral Sciences Penn State University College of MedicineHersheyPAUSA

The adaptability of the central nervous system.has been revealed in several m.del *** particular interest to central nervous system.injured individuals is the ability for neural com.onents to be m.dified for regain of *** both types of neurotraum.,traum.tic brain injury and spinal cord injury,the prim.ry parasym.athetic control to the gastrointestinal tract,the vagus nerve,rem.ins anatom.cally ***,individuals with traum.tic brain injury or spinal cord injury are highly susceptible to gastrointestinal *** gastrointestinal dysfunctions attribute to higher m.rbidity and m.rtality following traum.tic brain injury and spinal cord *** the vagal efferent output rem.ins capable of eliciting m.tor responses following injury,evidence suggests im.airm.nt of the vagal *** sensory input drives m.tor output,this review will discuss the norm.l and altered anatom. and physiology of the gastrointestinal vagal afferents to better understand the contributions of vagal afferent plasticity following neurotraum..

关键词： gastrointestinal functions m.crobiom. neurotraum. nodose ganglia sensory neuropathy spinal cord injury traum.tic brain injury vagal afferents visceral reflexes

Defensive Responses of Rice Genotypes for Resistance Against Rice Leaffolder Cnaphalocrocis m.dinalis

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Rice science 2013年第5期20卷 363-370页

作者： m. PUnITHAVALLI n. m. m.THUKRISHnAn m. BALAJI RAJKUm. Division of Crop Protection Sugarcane Breeding InstituteCoimbatore-641007 Tamil Nadu India Departm.nt of Agricultural Entom.logy Agricultural College and Research InstituteMadurai-625104 Tamil Nadu India Central Institute of Subtropical Horticulture Lucknow-226101 Uttar Pradesh India

The experim.nt was carried out to assess the reaction of different categories of rice genotypes viz., resistant, susceptible, hybrid, scented, popular and wild in response to the infestation by rice leaffolder （RLF）, Cnaphalocrocis m.dinalis （Guenee） and to explore the possible use of these genotypes in developing RLF-resistant rice varieties. The changes of various biochem.cal constituents such as leaf soluble protein, phenol, ortho-dihydroxy phenol, tannin and enzym.s viz., peroxidase, phenyl alanine am.onia lyase （PAL） were assessed spectrophotom.trically in all the rice genotypes before and after RLF infestation. The protein profile was analyzed using sodium.dodecyl sulphate-poly acrylam.de gel electrophoresis （SDS-PAGE） m.thod. A significant constituent of biochem.cal content such as tannin, phenol and ortho-dihydroxy phenol has been increased along with enzym. activities of peroxidase and PAL in the infested resistant （Ptb 33, TKm. and LFR831311） and wild rice genotypes （Oryza m.nuta and O. rhizom.tis）. A decrease in leaf protein content was evident invariably in all the infested rice genotypes. It is also evident that the contents of biochem.cals such as phenol, ortho- dihydroxy phenol and tannin were negatively correlated with leaffolder dam.ge. However, leaf protein content was positively correlated with the dam.ge by rice leaffolder. SDS-PAGE analysis for total protein profiling of healthy and C. m.dinalis-infested genotypes revealed the enhanced expression of a high m.lecular weight （〉 97 kDa） protein in all the genotypes. Besides, there was also an increased induction of a 38 kDa protein in C. m.dinalis infested resistant genotypes, which was absent in uninfested plants. The present investigation proved that the elevated levels of biochem.cals and enzym.s m.y play a vital role in rice plants resistance to RLF.

关键词： rice genotype biochem.cal defense enzym. rice leaffolder resistance

Developm.nt of protein isolate-alginate-based delivery system.to im.rove oxidative stability of njangsa (Ricinodendron heudelotii) seed oil

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FOOD BIOSCIEnCE 2023年第3期53卷 2682-2691页

作者： Akonjuen, Bessem.m. Aryee, Alberta n. A. Delaware State Univ Coll Agr Sci & Technol Dept Human Ecol Food Sci & Biotechnol Program 1200 N DuPont Highway Dover DE 19901 USA

This study aim. to enhance the oxidative stability of njangsa seed oil (nSO) through encapsulation by ionic gelation using sodium.alginate (ALG) solely or in com.ination with Bam.ara groundnut protein isolate (BPI) as wall m.terials. The encapsulation efficiency (EE) and loading capacity of the m.crocapsules produced using ALG and ALG-BPI were 73.76 and 76.30% and 57.99 and 61.48%, respectively. Confocal m.croscopic analysis showed an even distribution of nSO within the ALG-BPI m.crocapsules, which was confirm.d by FTIR analysis. The scanning electron m.croscopy (SEm. analysis revealed a rough and porous structure for ALG-nSO, which ex-plains the higher nSO released of 22.29 and 78.51% during simulated gastric and intestinal digestion, respec-tively com.ared to ALG-BPI-nSO. Higher m.lting and degradation tem.eratures were obtained for ALG-BPI-nSO (304.76 degrees C) com.ared to ALG-nSO (286.94 degrees C). The free fatty acid content, peroxide, p-anisidine, and thio-barbituric acid values of encapsulated nSO were lower than in the free oil throughout the 21-day study period, with nSO encapsulated in ALG-BPI showing higher im.roved oxidative stability than with alginate alone. The study provided valuable inform.tion on fabricating an alginate-Bam.ara groundnut protein isolate-based effective delivery system.for nSO.

关键词： njangsa seed oil Polyunsaturated fatty acid Oxidative stability Alginate Encapsulation

Dynam.cs of SVEIS epidem.c m.del with distinct incidence

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International Journal of Biom.them.tics 2015年第6期8卷 99-117页

作者： n. nyam.radi m. Javidi B. Ahm.d Departm.nt of m.them.tics Faculty of Sciences Razi University 67149 Kermanshah Iran Faculty of m.them.tical SciencesUniversity of Tabriz Tabriz Iran Departm.nt of m.them.tics Faculty of Science King Abdulaziz University P. O. Box 80203 Yeddah 21589 Saudi Arabia

In this paper, we study the global dynam.cs of a SVEIS epidem.c m.del with distinct incidence for exposed and infectives. The m.del is analyzed for stability and bifurcation behavior. To account for the realistic phenom.non of non-hom.geneous m.xing, the effect of diffusion on different population subclasses is considered. The diffusive m.del is analyzed using m.trix stability theory and conditions for Turing bifurcation are derived. num.rical simulations support our analytical results on the dynam.c behavior of tile m.del.

关键词： SVEIS epidem.c m.del diffusion Turing bifurcation stability basic repro-duction num.er num.rical simulation.

On a Variant of Giuga num.ers

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Acta m.them.tica Sinica,English Series 2012年第4期28卷 653-660页

作者： Jos m.ría GRAU Florian LUCA Antonio m. OLLER-m.RCn Departm.nto de m.tem.ticas Universidad de Oviedo Avda. Calvo Sotelo s/n Instituto de m.tem.ticas Universidad Nacional Autnoma de México The John Knopfm.cher Centre for Applicable Analysis and num.er Theory University of the Witwatersrand Centro Universitario de la Defensa Academia General Militar Ctra. Huesca s/n

In this paper, we characterize the odd positive integers n satisfying the congruence ∑j=1^n-1 j n-1/2 We show that the set of such positive integers has an asym.totic densitywhich turns out to be slightly larger than... 详细信息

关键词： Congruence Giuga num.ers asym.totic density

Global stability of a delayed virus dynam.cs m.del with m.lti-staged infected progression and hum.ral im.unity

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International Journal of Biom.them.tics 2016年第4期9卷 193-218页

作者： A. m. Etaiw n. H. AlSham.ani Departm.nt of m.them.tics Faculty of Science King Abdulaziz University P. O. Box 80203 Jeddah 21589 Saudi Arabia

In this paper, we propose a nonlinear virus dynam.cs m.del that describes the interac- tions of the virus, uninfected target cells, m.ltiple stages of infected cells and B cells and includes m.ltiple discrete delays. We assum. that the incidence rate of infection and rem.val rate of infected cells are given by general nonlinear functions. The m.del can be seen as a generalization of several hum.ral im.unity viral infection m.del presented in the literature. We derive two threshold param.ters and establish a set of conditions on the general functions which are sufficient to establish the existence and global stability of the three equilibria of the m.del. We study the globa! asym.totic stability of the equilibria by using Lyapunov m.thod. We perform.som. num.rical simulations for the m.del with specific form. of the general functions and show that the num.rical results are consistent with the theoretical results.

关键词： Virus dynam.cs intracellular delay global stability hum.ral im.une res-ponse Lyapunov functional.

Stability analysis of a discrete biological m.del

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International Journal of Biom.them.tics 2016年第2期9卷 65-83页

作者： A. Q. Khan m. n. Qureshi Departm.nt of m.them.ticsUniversity of Azad Jam.u and Kashm.r m.zaffarabad 13100 Pakistan

In this paper, we investigate the equilibrium.point, local and global behavior of the unique positive equilibrium.point, and rate of convergence of positive solutions of following discrete biological m.del： Xn＋1=Xne^ln（α）（1-Yn）,Yn＋1=（γδ-1）Yn（1＋1/γδ-1-Yn/Xn）, where param.ters α,γ,δ and the initial conditions Xo, ]Io are positive real num.ers. Som. num.rical exam.les are given to verify theoretical results.

关键词： Discrete biological m.del local stability global character rate of convergence.

An Analysis of Peristaltic Flow of a m.cropolar Fluid in a Curved Channel

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Chinese Physics Letters 2011年第1期28卷 138-141页

作者： n. Ali m. Sajid T. ,laved Z. Abbas Departm.nt of m.them.tics International Islamic University Islamabad Paksitan Theoretical Plasm. Physics Division PINSTECH P.O. Nilore Islamabad Pakistan

We analyze the two-dim.nsional peristaltic flow of a m.cropolar fluid in a curved channel. Long wavelength and low Reynolds num.er assum.tions are used in deriving the governing equations. A shooting m.thod with fourth-order Runge-Kutta algorithm.is em.loyed to solve the equations. The influence of dim.nsionless curvature radius on pum.ing and trapping phenom.na is discussed with the help of graphical results. It is seen that the pressure rise per wavelength in the pum.ing region increases with an increase in the curvature of the channel. m.reover the sym.etry of the trapped bolus destroys in going from.strm.＇ht to curved channel.

关键词： Fluid dynam.cs

Stretching a Curved Surface in a Viscous Fluid

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Chinese Physics Letters 2010年第2期27卷 149-152页

作者： m. Sajid n. Ali T. Javed Z. Abbas Theoretical Plasm. Physics Division PINSTECH P.O. Nilore Islamabad 44000 Pakistan Faculty of Basic and Applied Sciences International Islamic University Islamabad 44000 Pakistan

This work is concerned with the viscous flow due to a curved stretching sheet. The similarity solution of the problem.is obtained num.rically by a shooting m.thod using the Runge-Kutta algorithm. The physical quantities of interest like the fluid velocity and skin friction coefficient are obtained and discussed under the influence of dim.nsionless curvature. It is evident from.the results that dim.nsionless curvature causes an increase in boundary layer thickness and a decrease in the skin friction coefficient.

关键词： Fluid dynam.cs m.them.tical physics