The possible protective effect of lactoferrin on lipopolysaccharideinduced memory impairment in albino rats

No Abstrac

PHYSIOLOGICAL AND ANATOMICAL STUDIES ON THE BENDING IN ROSE AND GERBERA CUT FLOWERS TREATED WITH SILVER NANOPARTICLES AND THYME OIL

Bent neck or stem bending is the most essential problem of some cultivars of rose and gerbera cut flowers in the postharvest stage, as it decreases vase life as well as its commercial value. This research was conducted to evaluate the effectiveness of silver nanoparticles (SNPs) at 9 mg/l, 0.2 ml/l thyme oil and 200 mg/l 8-hydroxyquinoline sulfate (8-HQS) as holding solutions and 20 mg/l  silver nanoparticles as a pulsing solution compared to distilled water (control) in delaying bent neck in Rosa hybrida cv. Avalanche and stem bending in Gerbera jamesonii cv. Julia cut flowers (these are more cultivars sensitive to bending). Our results indicated a positive effect of SNPs and thyme oil on delaying the bent neck and decreasing bacterial counts. The flowers placed in 9 mg/l SNPs significantly delayed the bending, reduced the number of bacteria, improved water relations, maintained a higher lignin percentage, and extended longevity in both flowers compared to control and other treatments. The results of scanning microscopy pictures of the bending area indicated that 9 mg/l SNPs prevented vessel blockage and maintain anatomical structures such as epidermis cells, parenchyma cells, and vascular bundles in both cut rose and gerbera flowers. The results indicated that SNPs are superior to thyme oil in improving the quality, prolonging vase life, and delaying the bending of rose and gerbera cut flower

On modeling two immune effectors two strain antigen interaction

In this paper we consider the fractional order model with two immune effectors interacting with two strain antigen. The systems may explain the recurrence of some diseases e.g. tuberculosis (TB). The stability of equilibrium points are studied. Numerical solutions of this model are given. Using integer order system the system oscillates. Using fractional order system the system converges to a stable internal equilibrium. Ulam-Hyers stability of the system has been studied

On fractional order models for Hepatitis C

In this paper we present a fractional order generalization of Perelson et al. basic hepatitis C virus (HCV) model including an immune response term. We argue that fractional order equations are more suitable than integer order ones in modeling complex systems which include biological systems. The model is presented and discussed. Also we argue that the added immune response term represents some basic properties of the immune system and that it should be included to study longer term behavior of the disease

Search for the standard model Higgs boson in the H to ZZ to 2l 2nu channel in pp collisions at sqrt(s) = 7 TeV

A search for the standard model Higgs boson in the H to ZZ to 2l 2nu decay channel, where l = e or mu, in pp collisions at a center-of-mass energy of 7 TeV is presented. The data were collected at the LHC, with the CMS detector, and correspond to an integrated luminosity of 4.6 inverse femtobarns. No significant excess is observed above the background expectation, and upper limits are set on the Higgs boson production cross section. The presence of the standard model Higgs boson with a mass in the 270-440 GeV range is excluded at 95% confidence level.Comment: Submitted to JHE

Search for anomalous t t-bar production in the highly-boosted all-hadronic final state

A search is presented for a massive particle, generically referred to as a Z', decaying into a t t-bar pair. The search focuses on Z' resonances that are sufficiently massive to produce highly Lorentz-boosted top quarks, which yield collimated decay products that are partially or fully merged into single jets. The analysis uses new methods to analyze jet substructure, providing suppression of the non-top multijet backgrounds. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 5 inverse femtobarns. Upper limits in the range of 1 pb are set on the product of the production cross section and branching fraction for a topcolor Z' modeled for several widths, as well as for a Randall--Sundrum Kaluza--Klein gluon. In addition, the results constrain any enhancement in t t-bar production beyond expectations of the standard model for t t-bar invariant masses larger than 1 TeV.Comment: Submitted to the Journal of High Energy Physics; this version includes a minor typo correction that will be submitted as an erratu