Some nutritional aspects of haemonchosis in experimentally infested lambs

No Abstrac

Investigations into the pH stability of bluetongue virus and its survival in mutton and beef

Experiments are reported in which the in vitro pH stability of bluetongue virus as well as the survival of this virus in muscle of mutton and beef carcasses, have been investigated. (a) A marked loss of infectivity occurred between pH 6·1 and pH 6·3 under laboratory conditions when bluetongue virus was subjected to those hydrogen ion concentrations normally encountered in carcass meat. (b) The survival of bluetongue virus in carcass meat appears to be dependent upon the post-mortal pH changes. The virus was shown to persist for a period of 30 days at 4⁰C in an ovine carcass, where the pH failed to drop below pH 6·3. On the other hand, meat with a pH in the region of 5·4, did not contain infective virus. (c) A bovine carcass was shown to contain infective bluetongue virus on the tenth day after artificial infection, although no clinical signs of disease were encountered. (d) There appeared to be a greater tendency for bluetongue virus to be present in the M. gluteus than in the M. longissimus dorsi.The articles have been scanned in colour with a HP scanjet 5590; 300dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to final presentation PDF-Format

Electron microscopic studies on lumpy skin disease virus type "Neethling"

Electron microscopic studies on lumpy skin disease virus, type "Neethling", have been conducted. Virions which are remarkably similar in size and structural appearance to those of vaccinia virus are described. This is presented as further evidence for classifying lumpy skin disease virus as a member of the pox group.The journals have been scanned in colour with a HP 5590 scanner; 600 dpi. Adobe Acrobat v.11 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format

Observations on a strain of bluetongue virus by electron microscopy

Tissue culture propagated bluetongue virus was partially purified and examined in an electron microscope with the negative staining technique. Virus particles either with or without a distinct envelope were observed. In some cases the capsids appeared to be "empty". The capsid was found to have an average diameter of 60 mµ, while the overall diameter of the enveloped particle was approximately 100 mµ. Some evidence of an icosahedral shape was presented and the number of capsomeres was estimated at 92. The capsomeres appear to have a hollow, tubular nature. The findings have been discussed in relation to some other viruses.The journals have been scanned in colour with a HP 5590 scanner; 600 dpi. Adobe Acrobat v.11 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format

The choleretic action of genebile in a dog

A procedure for cannulating the bile duct of the dog is described. An intramuscular injection of Genebile increased the bile flow rate. A possible mechanism for this increase is suggested.http://www.jsava.co.zaam2020Anatomy and Physiolog

Bluetongue in cattle : typing of viruses isolated from cattle exposed to natural infections

Bluetongue viruses were isolated from five clinically healthy bovines exposed to natural infection over two consecutive bluetongue seasons. The isolated viruses were typed by serum-virus neutralization and found to represent 11 of the established antigenic groups. Two isolations failed to be neutralized and may represent further antigenic types of bluetongue virus. No single virus type could be found to occur in the same bovine for two consecutive seasons and in most instances the particular virus type occurred in the blood ·of a bovine for a period of less than 14 days.The articles have been scanned in colour with a HP Scanjet 5590; 300dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format

Measurement of νˉμ\bar{\nu}_{\mu} and νμ\nu_{\mu} charged current inclusive cross sections and their ratio with the T2K off-axis near detector

We report a measurement of cross section $\sigma(\nu_{\mu}+{\rm nucleus}\rightarrow\mu^{-}+X)$ and the first measurements of the cross section $\sigma(\bar{\nu}_{\mu}+{\rm nucleus}\rightarrow\mu^{+}+X)$ and their ratio $R(\frac{\sigma(\bar \nu)}{\sigma(\nu)})$ at (anti-)neutrino energies below 1.5 GeV. We determine the single momentum bin cross section measurements, averaged over the T2K $\bar{\nu}/\nu$-flux, for the detector target material (mainly Carbon, Oxygen, Hydrogen and Copper) with phase space restricted laboratory frame kinematics of $\theta_{\mu}$500 MeV/c. The results are $\sigma(\bar{\nu})=\left( 0.900\pm0.029{\rm (stat.)}\pm0.088{\rm (syst.)}\right)\times10^{-39}$ and $\sigma(\nu)=\left( 2.41\ \pm0.022{\rm{(stat.)}}\pm0.231{\rm (syst.)}\ \right)\times10^{-39}$in units of cm$^{2}$/nucleon and$R\left(\frac{\sigma(\bar{\nu})}{\sigma(\nu)}\right)= 0.373\pm0.012{\rm (stat.)}\pm0.015{\rm (syst.)}$.Comment: 18 pages, 8 figure

The state of the Martian climate

60°N was +2.0°C, relative to the 1981–2010 average value (Fig. 5.1). This marks a new high for the record. The average annual surface air temperature (SAT) anomaly for 2016 for land stations north of starting in 1900, and is a significant increase over the previous highest value of +1.2°C, which was observed in 2007, 2011, and 2015. Average global annual temperatures also showed record values in 2015 and 2016. Currently, the Arctic is warming at more than twice the rate of lower latitudes

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

Jet size dependence of single jet suppression in lead-lead collisions at sqrt(s(NN)) = 2.76 TeV with the ATLAS detector at the LHC

Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead-lead collisions at sqrt(s) = 2.76 TeV corresponding to an integrated luminosity of approximately 7 inverse microbarns, ATLAS has measured jets with a calorimeter over the pseudorapidity interval |eta| < 2.1 and over the transverse momentum range 38 < pT < 210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R = 0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet "central-to-peripheral ratio," Rcp. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. Rcp varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.Comment: 15 pages plus author list (30 pages total), 8 figures, 2 tables, submitted to Physics Letters B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2011-02