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Search Results: 1 - 10 of 1135 matches for " KM Vinod "
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Roles of Arabidopsis WRKY3 and WRKY4 Transcription Factors in Plant Responses to Pathogens
Zhibing Lai, KM Vinod, Zuyu Zheng, Baofang Fan, Zhixiang Chen
BMC Plant Biology , 2008, DOI: 10.1186/1471-2229-8-68
Abstract: Both WRKY3 and WRKY4 are nuclear-localized and specifically recognize the TTGACC W-box sequences in vitro. Expression of WRKY3 and WRKY4 was induced rapidly by stress conditions generated by liquid infiltration or spraying. Stress-induced expression of WRKY4 was further elevated by pathogen infection and SA treatment. To determine directly their role in plant disease resistance, we have isolated T-DNA insertion mutants and generated transgenic overexpression lines for WRKY3 and WRKY4. Both the loss-of-function mutants and transgenic overexpression lines were examined for responses to the biotrophic bacterial pathogen Pseudomonas syringae and the necrotrophic fungal pathogen Botrytis cinerea. The wrky3 and wrky4 single and double mutants exhibited more severe disease symptoms and support higher fungal growth than wild-type plants after Botrytis infection. Although disruption of WRKY3 and WRKY4 did not have a major effect on plant response to P. syringae, overexpression of WRKY4 greatly enhanced plant susceptibility to the bacterial pathogen and suppressed pathogen-induced PR1 gene expression.The nuclear localization and sequence-specific DNA-binding activity support that WRKY3 and WRKY4 function as transcription factors. Functional analysis based on T-DNA insertion mutants and transgenic overexpression lines indicates that WRKY3 and WRKY4 have a positive role in plant resistance to necrotrophic pathogens and WRKY4 has a negative effect on plant resistance to biotrophic pathogens.Upon pathogen infection, pathogen-associated molecular patterns (PAMPs) such as bacterial flagellin and lipopolysaccharides are recognized by plant receptors to activate PAMP-triggered immunity through a mitogen-activated protein kinase signaling cascade [1]. Gram-negative bacterial pathogens such as Pseudomonas syringae can deliver effector proteins to plant cells to interfere PAMP-triggered resistance to promote pathogen virulence. As a result, the remaining basal defense is usually insuffi
The relative length of Pig chromosomes, and a suggestion for a karyotype system
KM Hansen
Genetics Selection Evolution , 1980, DOI: 10.1186/1297-9686-12-4-313
Abstract:
Identification of the X chromosome of the domestic pig (Sus scrofa domestica)
KM Hansen
Genetics Selection Evolution , 1980, DOI: 10.1186/1297-9686-12-3-225
Abstract:
Identification of the chromosomes of the domestic pig (Sus scrofa domestica). An identification key and a landmark system
KM Hansen
Genetics Selection Evolution , 1977, DOI: 10.1186/1297-9686-9-4-517
Abstract:
Legitimizing the invented Congolese space: The gaze from within in early Congolese fiction
KM Kapanga
Tydskrif vir letterkunde , 2009,
Abstract: Postcolonial discourses describe colonization as a process of invention to impose the will of a conquering West on “backward” societies. The will to power conjugated with the need for raw materials served as the main catalysts. They put side by side a hegemonic intruder bent on duplicating itself, and a powerless and compliant native unable to react to the blitz of transformations. Hence, the master/slave or father/child relationships that describe the colonial framework. The task is to interrogate these generally accepted assumptions and binary oppositions. Although marginalized, the Congolese native was unwilling to become an object for the colonizer's gaze. In fact, the inability to expel the “invader” did not prevent the creation of legitimacies out of what was precipitously brought in. This mechanism of transformation is perceptible in Paul Lomami Tchibamba's novel Ngando (1948), the object of this study. Ngando's imagined colonial city stands out as a site of contrasts and contradictions. However, the duplicated model shows the “transformability” of the new space into “normalcy” by a subversive native
Assessing the Effects of Pilferage, Mutilation and Theft of Library Resources on Institute for Agricultural Research Library
KM Gabriel
Samaru Journal of Information Studies , 2010,
Abstract: The paper presents the prospects, problems and solutions on the effects of pilferage, mutilation and theft of available information resources in an agricultural library. The overall purpose of the study is to identify and ascertain the factors predisposing of culprits to the crime and describe measures appropriate to curb the menace. The findings revealed that well tailored orientation is necessary. Punitive measures were also suggested to salvage poor utilization of services. The study conclude that lack of policy guarding use and misuse of resources contributed significantly and negatively to safeguarding available resources, punitive measures and administration. It therefore recommends punishment on leaving the library with resources not in circulation or not properly checkout. Culprit should be made to pay for resources pilfered, mutilated - deface or destroyed as a result of carelessness, and finally, expulsion from the library.
Advances in obstetric anesthesia: ambulation during labor with combined spinal-epidural analgesia: review
KM Kuczkowski
Southern African Journal of Anaesthesia and Analgesia , 2004,
Abstract: Epidural analgesia is widely considered as the most effective method of providing pain relief in labor. However, epidural labor analgesia is not a generic procedure and many technical modifications have been invented over time. Continuous search for a balanced labor analgesia, which provides relief of pain of contractions while preserving motor function, has led to the development of the ambulatory labor analgesia. The combined spinalepidural analgesia (CSEA) performed with subarachnoid opioids (with or without local anesthetics) causes minimal motor block and is particularly applicable to ambulatory labor analgesia. While there still remains some concern about dural puncture, the CSEA technique offers many advantages to the parturient, and has gained wide spread popularity in obstetric anesthesia worldwide. Southern African Journal of Analgesia and Anaesthetics Vol10(3) 2004: 15-18
Dynamics of Particle in a Box in Time Varying Potential Due to Chirped Laser Pulse  [PDF]
Brijender Dahiya, Vinod Prasad
Journal of Modern Physics (JMP) , 2010, DOI: 10.4236/jmp.2010.16053
Abstract: We describe a computational method for simulating the time dependent quantum mechanical system inter-acting with external field. In this method the Schrödinger equation is solved by expanding the wave function in the basis set of unperturbed Hamiltonian. The expansion yields a set of coupled first order differential equation. For expansion coefficients, the coupled channel method is applied to a particle in a box interacting with external field in the form of chirped laser pulse. The pulse shape is taken as Gaussian. We study the ef-fect of different pulse parameters i.e. chirp rate, intensity, center frequency, box length and laser duration on the dynamics of the particle. Many interesting results are obtained and explained.
Newborn Sex Selection and India’s Overpopulation Problem  [PDF]
Hrishikesh D. Vinod
Modern Economy (ME) , 2013, DOI: 10.4236/me.2013.42013
Abstract:

We begin by noting how India is highly overpopulated and that this creates negative externalities for world environment. Next, we note that females in child-bearing ages alone determine the birth rate, compounding the population growth anywhere. Third, forcing families to have unwanted daughters can increase discrimination against women. Fourth, most countries impose no restrictions on women choosing the sex of their next baby. We use these propositions to argue that cultural preference against daughters in India has important benefits until India achieves net reproduction rate of unity. We argue that the correct policy for malnourished overpopulated India must be the exact opposite of the focus in North America and Europe, where they have an obesity epidemic and declining populations.

Analysis of Mechanical Behavior of Red Blood Cell Membrane with Malaria Infection  [PDF]
Vinod Kumar Katiyar, Demeke Fisseha
World Journal of Mechanics (WJM) , 2011, DOI: 10.4236/wjm.2011.13014
Abstract: Human red blood cells (RBCs) are responsible to transport oxygen and carbon dioxide for human bodies. The physiological functions of RBCs are greatly influenced by their mechanical properties. When RBC is infected by Malaria parasite called Plasmodium falciparum, it shows progressive changes in mechanical properties and loses its deformability. The infected red blood cells (IRBCs) develop properties of cytoadherence (stickiness) and rosetting (the binding of non-infected RBCs to parasitized RBCs). In this paper to analyze the mechanical properties and deformability of the IRBC, we applied stress-stretch ratio relation of its biomembrane .To express this constitutive relation, we proposed a mathematical model (Neo-Hookean model) based on membrane theory. On this model, we present continuous stress-stretch ratio curves for the relation derived from the model for different intracellular developmental stages of the parasite, to determine the mechanical properties of IRBC. The analytical results obtained from the mathematical model are more closed with the experimental data [1] which demonstrates the validity of the model. By restricting our attention to spherically symmetric deformation in the final schizont stage of parasite development, the pressure-extension ratio relation curve also adapted from the proposed strain energy function. The change in osmotic pressure versus volumetric ratio has been also considered for IRBC before hemolysis.
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