1,464 research outputs found
Diagnosis and ultrasound-guided retrieval of a vaginal foreign body in a dog and a cat
In this case report, the diagnosis and ultrasound-guided retrieval of an intravaginal grass awn in a dog and a cat are described. The dog was presented with chronic vaginal discharge for over two years. The cat was presented for acute lethargy and bloody vaginal discharge and a two-week history of a perivulvar leakage. Ultrasonographic diagnosis included the visualization of a linear, hyperechoic and spindle-shaped structure and mild thickness of the vagina. The grass awns were successfully retrieved non-invasively, under general anesthesia using ultrasound-guided Hartmann forceps inserted into the vagina. Ultrasound-guided grass awn retrieval from the vagina appears to be a safe and inexpensive procedure
Potential of bio-indication of chironomid communities for assessment of running water quality in Flanders (Belgium)
Characterization of transport and magnetic properties in thin film La(0.67)(Ca(x)Sr(1-x))(0.33)MnO(3) mixtures
We have grown thin films of (100) oriented
La_{0.67}(Ca_{x}Sr_{1-x})_{0.33}MnO_{3} on (100) NdGaO_{3} substrates by
off-axis sputtering. We have looked at the changes in the resistivity and
magnetoresistance of the samples as the Ca/Sr ratio was varied. We find that as
the calcium fraction is decreased, the lattice match to the substrate
decreases, and the films become more disordered, as observed in transport
measurements and the variation in Curie and peak resistance temperatures. We
find a correlation between the temperature independent and T^2 terms to the low
temperature resistivity. The room temperature magnetoresistance exhibits a
maximum as the peak temperature is increased by the substitution of Sr for Ca,
and a change in the field dependence to the resistivity at room temperature is
observed.Comment: 5 pages, 6 eps figures, to be published in Journal of Applied Physic
Hall carrier density and magnetoresistance measurements in thin film vanadium dioxide across the metal-insulator transition
Temperature dependent magneto-transport measurements in magnetic fields of up
to 12 Tesla were performed on thin film vanadium dioxide (VO2) across the
metal-insulator transition (MIT). The Hall carrier density increases by 4
orders of magnitude at the MIT and accounts almost entirely for the resistance
change. The Hall mobility varies little across the MIT and remains low,
~0.1cm2/V sec. Electrons are found to be the major carriers on both sides of
the MIT. Small positive magnetoresistance in the semiconducting phase is
measured
Multiorbital effects on the transport and the superconducting fluctuations in LiFeAs
The resistivity, Hall effect and transverse magnetoresistance (MR) have been
measured in low residual resistivity single crystals of LiFeAs. A comparison
with angle resolved photoemission spectroscopy and quantum oscillation data
implies that four carrier bands unevenly contribute to the transport. However
the scattering rates of the carriers all display the T^2 behavior expected for
a Fermi liquid. Near Tc low field deviations of the MR with respect to a H^2
variation permit us to extract the superconducting fluctuation contribution to
the conductivity. Though below Tc the anisotropy of superconductivity is rather
small, the superconducting fluctuations display a quasi ideal two-dimensional
behavior which persists up to 1.4 Tc. These results call for a refined
theoretical understanding of the multiband behavior of superconductivity in
this pnictide.Comment: 8pages with supplementary material, 6 figure
Mg-Ni-H films as selective coatings: tunable reflectance by layered hydrogenation
Unlike other switchable mirrors, Mg2NiHx films show large changes in
reflection that yield very low reflectance (high absorptance) at different
hydrogen contents, far before reaching the semiconducting state. The resulting
reflectance patterns are of interference origin, due to a self-organized
layered hydrogenation mechanism that starts at the substrate interface, and can
therefore be tuned by varying the film thickness. This tunability, together
with the high absorptance contrast observed between the solar and the thermal
energies, strongly suggests the use of these films in smart coatings for solar
applications.Comment: Three two-column pages with 3 figures embedded; RevTE
Weak Localization Thickness Measurements of Si:P Delta-Layers
We report on our results for the characterization of Si:P delta-layers grown
by low temperature molecular beam epitaxy. Our data shows that the effective
thickness of a delta-layer can be obtained through a weak localization analysis
of electrical transport measurements performed in perpendicular and parallel
magnetic fields. An estimate of the diffusivity of phosphorous in silicon is
obtained by applying this method to several samples annealed at 850 Celsius for
intervals of zero to 15 minutes. With further refinements, this may prove to be
the most precise method of measuring delta-layer widths developed to date,
including that of Secondary Ion Mass Spectrometry analysis
Using a personality-profiling algorithm to investigate political microtargeting: assessing the persuasion effects of personality-tailored ads on social medi
Fast and low cost analysis of dioxin and dioxin-like compounds in marine matrices: final report
0info:eu-repo/semantics/publishe
Proximity effect in Nb-Mo layered films: Transition temperature and critical current dependence on period
The behavior of the transition temperature and critical current density for a
Mo/Nb repeated bilayer system as a function of the number of periods was
explored. The measured values of the transition temperature are compared to the
theoretical predictions for the proximity effect in the dirty limit. We find
that the transition temperature does not decrease as the number of periods
increase. In addition, inductive critical current density measurements also
show a scaling that indicates the superconductivity properties are not
dependent on the number of bilayers.Comment: 13 pages, 6 figures, to be published Journal of Applied Physic
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