10 research outputs found
Holographic RG Flows and Universal Structures on the Coulomb Branch of N=2 Supersymmetric Large n Gauge Theory
We report on our results of D3-brane probing a large class of generalised
type IIB supergravity solutions presented very recently in the literature. The
structure of the solutions is controlled by a single non-linear differential
equation. These solutions correspond to renormalisation group flows from pure
N=4 supersymmetric gauge theory to an N=2 gauge theory with a massive adjoint
scalar. The gauge group is SU(n) with n large. After presenting the general
result, we focus on one of the new solutions, solving for the specific
coordinates needed to display the explicit metric on the moduli space. We
obtain an appropriately holomorphic result for the coupling. We look for the
singular locus, and interestingly, the final result again manifests itself in
terms of a square root branch cut on the complex plane, as previously found for
a set of solutions for which the details are very different. This, together
with the existence of the single simple non-linear differential equation, is
further evidence in support of an earlier suggestion that there is a very
simple model --perhaps a matrix model with relation to the Calogero-Moser
integrable system-- underlying this gauge theory physics.Comment: 14 pages, LaTeX, 1 figur
Umbilical hernia rupture with evisceration of omentum from massive ascites: a case report
<p>Abstract</p> <p>Introduction</p> <p>The incidence of hernias is increased in patients with alcoholic liver disease with ascites. To the best of our knowledge, this is the first report of an acute rise in intra-abdominal pressure from straining for stool as the cause of a ruptured umbilical hernia.</p> <p>Case presentation</p> <p>An 81-year-old Caucasian man with a history of alcoholic liver disease presented to our emergency department with an erythematous umbilical hernia and clear, yellow discharge from the umbilicus. On straining for stool, after initial clinical assessment, our patient noted a gush of fluid and evisceration of omentum from the umbilical hernia. An urgent laparotomy was performed with excision of the umbilicus and devitalized omentum.</p> <p>Conclusion</p> <p>We report the case of a patient with a history of alcoholic liver disease with ascites. Ascites causes a chronic increase in intra-abdominal pressure. A sudden increase in intra-abdominal pressure, such as coughing, vomiting, gastroscopy or, as in this case, straining for stool can cause rupture of an umbilical hernia. The presence of discoloration, ulceration or a rapid increase in size of the umbilical hernia signals impending rupture and should prompt the physician to reduce the intra-abdominal pressure.</p
Development of Precision Livestock Farming (PLF) technologies for the Australian pig industry
The main objective of this review was to assess currently available technologies to be used in Australian Precision Livestock Farming (PLF) systems and the research and development (R&D) work required before these systems can be implemented. Commercially available hardware and software products were assessed and a literature review of current R&D was undertaken to capture emerging technologies. One of the main recommendations of the review was that the implementation of PLF systems within Australia should occur via a coordinated development and linking of existing hardware and software components. The main implementation barriers identified are data compatibility and transfer. In order to achieve these aims investment in (1) industry coordination, (2) awareness raising/training programs (3) effectively targeted R&D projects and in the (4) establishment of demonstration/research sites would be required
Genetic diversity and spatial structure in a new distinct Theobroma cacao L. population in Bolivia
Cacao (Theobroma cacao L.) is an important economic crop in the Bolivian Amazon.
Bolivian farmers both cultivate cacao, and extract fruits from wild stands in the Beni River region and in valleys of the Andes foothills. The germplasm group traditionally used is presently referred to as ??Cacao Nacional Boliviano?? (CNB). Using DNA
fingerprinting technology based on microsatellite markers, we genotyped 164 Bolivian cacao accessions, including both cultivated and wild CNB accessions sampled from the Amazonian regions of La Paz and Beni, and compared their SSR profiles with 78 reference Forastero accessions from Amazonian
cacao populations, including germplasm from
the Ucayali region of Peru. Results of multivariate ordination and analysis of molecular variance show that CNB cacao has a unique genetic profile that is significantly different from the known cacao germplasm
groups in South America. The results also
show that cultivated CNB and wild CNB populations in the Beni River share a similar genetic profile, suggesting that the cultivated CNB is of indigenous origin in Bolivia. The level of genetic diversity,
measured by allele richness and gene diversity in the Bolivian cacao, is moderately high, but was significantly
lower than gene diversity in the other
Amazonian cacao populations. Significant spatial genetic structure was detected in the wild CNB population, using analysis of autocorrelation (rc = 0.232; P\0.001) and Mantel tests (Rxy = 0.276; P\0.001). This finding is also highly valuable to support in situ conservation and sustainable use of
CNB genetic diversity in Bolivia.Centro Agron?mico Tropical de Investigaci?n y Ense?anza (CATIE)-MA