Surveillance of Salmonella in low prevalence swine herds in Denmark

The nation-wide Danish Salmonella surveillance and control program in finisher herds is primarily based on the monitoring of the presence of specific antibodies against Salmonella enterica in meat juice from carcasses

Salmonella serology compared to body weight for finishers and sows

The relation between live body weight and Salmonella OD% for meat juice samples was investigated for finishers. The result was a seagull shaped curve indicating that the risk of being seropositive declines with increasing body weight from 60 to approximately 100 kilos and then rises again

Sehschädigung als Stigma - Inklusions- und Exklusionserfahrungen sehgeschädigter Menschen in Österreich

In der vorliegenden Diplomarbeit wird der Frage nachgegangen, in welchen Lebensbereichen sehgeschädigte Menschen Inklusions- bzw. Exklusionserfahrungen machen. Da es dabei um subjektive Erfahrungen aus dem Alltag Betroffener geht, werden sechs leitfadengestützte Interviews, mit erwachsenen, sehgeschädigten Menschen durchgeführt. Im Anschluss daran werden die Aussagen der Interviewteilnehmer der qualitativen Inhaltsanalyse nach Mayring unterzogen. Nachdem jedes einzelne Interview analysiert wurde, werden die Gemeinsamkeiten und Unterschiede der Interwies herausgearbeitet, um dann auf die, im ersten Teil der Arbeit dargelegte, wissenschaftliche Literatur zum Thema, Bezug zu nehmen.The present diploma thesis deals with the question in which areas of life people with damaged eyesight gain inclusion and exclusion experiences, respectively. Due to the fact that subjective experiences taken from the everyday life of people concerned are involved, six guidelinesupported interviews with adults with damaged eyesight are conducted. Subsequently the statements of the interviewees are subjected to the qualitative content analysis according to Mayring. After having analyzed each single interview, the similarities and the differences between the interviews are worked out in order to refer to the scientific references on the subject, demonstrated in the first part of the thesis

ASAS Light Curves of Intermediate Mass Eclipsing Binaries and the Parameters of HI Mon

We present a catalog of 56 candidate intermediate mass eclipsing binary systems extracted from the 3rd data release of the All Sky Automated Survey. We gather pertinent observational data and derive orbital properties, including ephemerides, for these systems as a prelude to anticipated spectroscopic observations. We find that 37 of the 56, or ~66% of the systems are not identified in the Simbad Astronomical Database as known binaries. As a specific example, we show spectroscopic data obtained for the system HI Mon (B0 V + B0.5 V) observed at key orbital phases based on the computed ephemeris, and we present a combined spectroscopic and photometric solution for the system and give stellar parameters for each component.Comment: 83 pages, 63 figure

Effect of an optimised pelleted diet on Salmonella prevalence and pig productivity

The effect of an optimised, wheat based pelleted diet containing barley, sugar beet pulp and organic acids on Salmonella prevalence and pig productivity was investigated in two finisher herds. The optimised diet significantly reduced Salmonella seroprevalence compared to standard pelleted feed and meal feed. In contrast to previous studies, meal feed did not have a significant Salmonella reducing effect in this study. Meal diet but not the optimised diet had a significant negative effect on pig productivity, compared to the standard pelleted diet. Our results show that the optimised diet is a suitable alternative to wheat based pelleted feed or meal feed in reducing Salmonella prevalence in finisher pigs

The Continuing Outburst of V1647~Orionis: Winter/Spring 2011 Observations

We present optical and near-IR observations of the young eruptive variable star V1647 Orionis which illuminates McNeil's Nebula. In late 2003, V1647 Ori was observed to brightened by around 5 mag to r'=17.7. In early 2006 the star faded back to its quiescent brightness of r'~23, however, in mid-2008 it brightened yet again by ~5 mag. Our new observations, taken in early 2011, show V1647 Ori to be in an elevated photometric state with an optical brightness similar to the value found at the start of the 2003 and 2008 outbursts. Optical images taken between 2008 and 2011 suggest that the star has remained in outburst from mid 2008 to the present. H-alpha and the far-red CaII triplet lines remain in emission with H-alpha possessing a significant P Cygni profile. A self-consistent study of the accretion luminosity and rate using data taken in 2004, 2007, 2008, and 2011, indicates that when bright, V1647 Ori has values of 16+-2 Lsun and 4+-2x10^-6 Msun/yr, respectively. We support the premise that the accretion luminosity and rate both declined by a factor 2-3 during the 5mag fading in 2007. However, a significant parts of the fading was due to either variable extinction or dust reformation. We discuss these new observations in relation to previous published data and the classification schemes for young eruptive variables.Comment: accepted, A

Risk-based analysis of the Danish pork Salmonella program, past and future

The question of where in the production system to best implement control Salmonella policies often ends up between the farm or the abattoir, as control policies further downstream e.g. the kitchen are difficult to implement. The Danish on-farm program involves classification of herd Salmonella status based on statistically based serological sampling

V456 Ophiuchi and V490 Cygni: Systems with the shortest apsidal-motion periods

Our main aim is the first detailed analysis of the two eclipsing binaries V456 Oph and V490 Cyg. The system V456 Oph has been studied both photometrically via an analysis of its light curve observed by the INTEGRAL/OMC and by the period analysis of all available times of minima. V490 Cyg has been studied by means of a period analysis only. Many new times of minima for both systems have recently been observed and derived. This allows us for the first time to study in detail the processes that affect both binaries. The main result is the discovery that both systems have eccentric orbits. For V456 Oph we deal with the eccentric eclipsing binary system with the shortest orbital period known (about 1.016 day), while the apsidal motion period is about 23 years. V490 Cyg represents the eclipsing system with the shortest apsidal motion period (about 18.8 years only). The two components of V456 Oph are probably of spectral type F. We compare and discuss the V456 Oph results from the light curve and the period analysis, but a more detailed spectroscopy is needed to confirm the physical parameters of the components more precisely.Comment: 4 pages, 3 figures, published in A&A: 2011A&A...527A..43

Effect on Salmonella prevalence by feeding sows meal or pelleted feed.

The aim of this study was I: To evaluate the Salmonella reducing effect of feeding meal to sows compared to feeding pellets to sows. 2: To evaluate the effect of the sow feed on the Salmonella shedding of the weaners at approximately 25 kg. There was no overall serological difference between sows fed meal and sows fed pellets over time. Individually there was a statistically significant drop in serology from blood samples taken in the gestation stables to blood samples taken in the farrowing stables. Meal fed sows experienced a drop of 4 OD% and pelleted fed sows had a drop of 6 OD%. This study did not find a significant difference between the Salmonella level of sows fed meal or sows fed pellets. There was a clear relation between the salmonella level of sows and weaners. Only exotic Salmonella serotypes were found

The first light-curve analysis of eclipsing binaries observed by the INTEGRAL/OMC

Three Algol-type binaries in Cygnus constellation were selected for an analysis from a huge database of observations made by the INTEGRAL/OMC camera. These data were processed and analyzed, resulting in a first light-curve study of these neglected eclipsing binaries. The temperatures of the primary components range from 9500 K to 10500 K and the inclinations are circa 73deg (for PV Cyg and V1011 Cyg), while almost 90deg for V822 Cyg. All of them seem to be main-sequence stars, well within their critical Roche lobes. Nevertheless, further detailed analyses are still needed.Comment: 6 pages, 4 figures, 2 tables, published in New As