UH Research Archive: Recent submissions
Now showing items 6661-6680 of 11145
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Immunological quantification of the nematode parasitic bacterium Pasteuria penetrans in soil
(2001-11)Currently, the abundance of Pasteuria penetrans in soils, an unculturable bacterial parasite of root-knot nematodes (Meloidogyne spp,). is estimated by the percentage of nematode juveniles infected with bacteria and the ... -
Cross section measurements of the Nb-93(p,gamma)Mo-94 reaction at E-p=1.4-4.9 MeV relevant to the nucleosynthetic p process
(2001-11)In-beam cross section measurements of the Nb-93(p,gamma)Mo-94 reaction have been carried out at E-p = 1.4-4.9 MeV, by using high efficiency high-purity Ge detectors, partly with BGO shields for Compton background suppression. ... -
A framework for evaluation and prediction of software process improvement success
(2001-11-15)The literature shows that software process improvement (SPI) is a current popular approach to software quality and that many companies are undertaking formal or informal SPI programs. However, the anticipated improvements ... -
Phosphorylation of Pak1 by the p35/Cdk5 Kinase Affects Neuronal Morphology
(2001-12-28)The small GTPase Rac and its effectors, the Pak1 and p35/Cdk5 kinases, have been assigned important roles in regulating cytoskeletal dynamics in neurons. Our previous work revealed that the neuronal p35/Cdk5 kinase associates ... -
Response of tomato (Lycopersicon esculentum L.) cultivars to foliar application of zinc when grown in sand culture at low zinc
(2002-02-28)Plants of two tomato cvs., 'Blizzard' and 'Liberto' were grown in sand culture in a glasshouse at Zn concentrations of 0.15 and 7.70 μmol 1 in the nutrient solution. Foliar treatments entailed applying zinc as either 0, ... -
Modelling the daily progress of light leaf spot epidemics on winter oilseed rape (Brassica napus), in relation to Pyrenopeziza brassicae inoculum concentrations and weather factors
(2002-02-15)The progress of light leaf spot (Pyrenopeziza brassicae) epidemics on winter oilseed rape was monitored in 1998/99 and 1999/2000 at Rothamsted, and weather factors and P. brassicae ascospore concentrations were recorded ... -
The polypeptide components of the parasporal fibres of Pasteuria penetrans
(2002-03)A variety of treatments were tested for their ability to solubilize the parasporal fibres from Pasteuria penetrans, a parasite of some plant-parasitic nematodes. Selective solubilization of the parasporal fibres resulted ... -
Transepidermal water loss does not correlate with skin barrier function in vitro
(2002-05)The purpose of this study was to investigate the relationship between transepidermal water loss and skin permeability to tritiated water ((H2O)-H-3) and the lipophilic penetrant sulfur mustard in vitro . No correlation was ... -
New Maxwellian averaged neutron capture cross sections for Cl-35,Cl-37
(2002-05)The Oak Ridge Electron Linear Accelerator (ORELA) was used to measure neutron total and capture cross sections of natural chlorine in the energy range from 100 eV to 600 keV. We performed an R-matrix analysis of our new ... -
Improved PCR-based assays for pre-symptomatic diagnosis of light leaf spot and determination of mating type of Pyrenopeziza brassicae on winter oilseed rape
(2002-05)An existing PCR-based method for diagnosis of the winter oilseed rape (Brassica napus ssp oleifera) fungal pathogen Pyrenopeziza brassicae (cause of light leaf spot) was improved by the development of a pair of primers ... -
The relationship between notification to the Home Office Addicts Index and deaths of notified addicts
(2002-06)Aims: This paer examines (a) the relationship between notifications to the Home Office Addicts Index and deaths of notified addicts, and (b) the survival rates of such addicts. Design and participants: Data came from the ... -
Detection of airborne inoculum of Leptosphaeria maculans and Pyrenopeziza brassicae in oilseed rape crops by polymerase chain reaction (PCR) assays
(2002-06)The potential use of DNA-based methods for detecting airborne inoculum of Leptosphaeria maculans and Pyrenopeziza brassicae, both damaging pathogens of oilseed rape, was investigated. A method for purifying DNA from spores ... -
Colonization of winter oilseed rape tissues by A/Tox(+) and B/Tox(0) Leptosphaeria maculans (phoma stem canker) in France and England
(2002-06)The colonization of winter oilseed rape plants and epidemiology of phoma stem canker differed between A/Tox(+) and B /Tox(0) Leptosphaeria maculans. In France and England, where plant colonization was investigated during ... -
Anti-inflammatory effects of carprofen, carprofen enantiomers, and NG-nitro-L-arginine methyl ester in sheep
(2002-06)Objective-To assess anti-inflammatory effects of carprofen (CPF), CPF enantiomers, and N(G)-nitro-L-arginine methyl ester (L-NAME) in sheep. Animals-8 sheep. Procedure-Sheep with SC tissue cages were used. After intracaveal ... -
Simulation of vertical spread of plant diseases in a crop canopy by stem extension and splash dispersal
(2002-06-01)Upward displacement of light leaf spot lesions by winter oilseed rape stem extension and dispersal of Pyrenopeziza brassicae conidia by rain-splash were both incorporated into a model to describe vertical spread of light ... -
V-45(p,gamma) thermonuclear reaction rate relevant to Ti-44 production in core-collapse supernovae : General estimates and shell model analysis
(2002-07)The lack of knowledge of the V-45(p,gamma) reaction rate has been shown to contribute a large uncertainty to the production of Ti-44 in core-collapse supernovae. By considering likely contributions from resonances associated ... -
alpha- and neutron-induced reactions on ruthenium isotopes
(2002-07)The uncertain origin of the proton rich Mo and Ru isotopes has motivated cross-section measurements of alpha- and neutron-induced reactions. The experiments were performed via the activation technique by irradiating thin ... -
Pak1 phosphorylation on T212 affects microtubules in cells undergoing mitosis
(2002-07-23)The Pak kinases are targets of the Rho GTPases Rac and Cdc42, which regulate cell shape and motility [1-5]. It is increasingly apparent that part of this function is due to the effect Pak kinases have on microtubule ... -
Effects of timing of Leptosphaeria maculans ascospore release and fungicide regime on phoma leaf spot and phoma stem canker development on winter oilseed rape (Brassica napus) in southern England
(2002-08)At Rothamsted during 1997/98, 1998/99 and 1999/2000 winter oilseed rape growing seasons, numbers of air-borne ascospores of Leptosphaeria maculans were often > 4 m(-3) from autumn (September/October) to spring (April/May), ... -
Measurement of the (gamma, n) cross section of the nucleus Au-197 close above the reaction threshold
(2002-08-26)The cross section and the astrophysical reaction rate of the reaction Au-197(gamma,n)Au-196 have been measured close above the reaction threshold at E-thr = 8.071 MeV using the method of photoactivation. The results are ...