13 research outputs found
Three-Prong Distribution of Massive Narrow QCD Jets
We study the planar-flow distributions of narrow, highly boosted, massive QCD
jets. Using the factorization properties of QCD in the collinear limit, we
compute the planar-flow jet function from the one-to-three splitting function
at tree-level. We derive the leading-log behavior of the jet function
analytically. We also compare our semi-analytic jet function with parton-shower
predictions using various generators.Comment: 59 pages, 9 figure
Optically Modulated Propulsion of Electric Field Powered Photoconducting Janus Particles
Herein we demonstrate the ability to optically tune the mobility of
electrically powered Janus particles (JP) that are half coated with various
Zinc Oxide (ZnO) semiconducting layers, i.e. polycrystalline, amorphous and
amorphous with a SiO2 passivation layer. The ZnO semiconductor photo-response
enables increase in its electrical conductivity with light having wavelengths
of sufficient photon energy with respect to the semiconductor bandgap. This
effect, termed optically modulated electrokinetic propulsion (OMEP), can be
harnessed to increase the contrast in polarizability between the dielectric and
semiconducting hemispheres, which in turn, results in an increased
electrokinetic mobility. The addition of optical activation to the electrical
field enables an additional degree of control of JP mobility. We also
demonstrate optical control of collective behavior and particle-particle
interactions for dense semi-conducting Janus particle populations
The quest for canine leishmaniasis in Romania: the presence of an autochthonous focus with subclinical infections in an area where disease occurred
Complete uterine torsion diagnosed during an elective caesarean section following failed external cephalic version: a case report
Particle dynamics and rapid trapping in electro-osmotic flow around a sharp microchannel corner
First report of Anaplasma platys infection in red foxes (Vulpes vulpes) and molecular detection of Ehrlichia canis and Leishmania infantum in foxes from Portugal
BACKGROUND: The bacteria Anaplasma platys and Ehrlichia canis and the protozoan Leishmania infantum are vector-borne agents that cause canine vector-borne diseases, some of which are zoonotic. The present survey investigated the prevalence of Anaplasma, Ehrlichia and Leishmania in red foxes (Vulpes vulpes) from Portugal by molecular analysis, in order to evaluate the epidemiological role of these canids as reservoirs of infection. METHODS: Blood and/or bone marrow samples were collected from 78 red foxes obtained in eight districts of northern, central and southern Portugal. Real-time polymerase chain reactions (PCR) amplified a 123 bp fragment of the 16S rRNA gene of Anaplasma spp. and Ehrlichia spp. and a 265 bp fragment of the L. infantum internal transcribed spacer one (ITS1) region of the rRNA operon evaluated by PCR-high resolution melt analysis (PCR-HRM), with sequencing of the DNA products. A phylogenetic analysis was carried out to compare these to other sequences from Anaplasma spp. and Ehrlichia spp. deposited in GenBank®. RESULTS: A. platys was detected in 10 (14.5%) and E. canis in two (2.9%) out of 69 foxes; and L. infantum was detected in one (1.3%) of the 78 foxes. The prevalence of A. platys was significantly different from the prevalence of E. canis (p=0.016) and from that of L. infantum (p=0.002). No co-infections were found in any one of the 78 foxes. No statistically significant differences were found between the type of sample (blood and bone marrow), geographic regions (north/centre and south), age (<2 years and ≥2 years) and gender for any one of the agents. CONCLUSIONS: This is the first known report of A. platys in red foxes worldwide, as well as the first molecular evidence of E. canis in foxes from Portugal. The moderate prevalence of A. platys suggests that red foxes may play a role in the epidemiology of infection with this bacterium and serve as a reservoir for domestic dogs
Additional file 1: of The quest for canine leishmaniasis in Romania: the presence of an autochthonous focus with subclinical infections in an area where disease occurred
Table S1. Geographical distribution of sand fly fauna in Romania. (XLSX 12 kb