989 research outputs found
The influence of xylate on the volumo- and osmoregulatory function of the kidneys in diabetes complicated by the syndrome of endogenous intoxication of purulent-septic origin.
The combination of insulin-independent diabetes mellitus with endogenous purulent-septic genesis syndrome is a fairly common nosology. The search for ways to optimize the results of its treatment, after screening observations, led to the expediency to consider the pharmacodynamic aspects of the action of polyhydric alcohols through the prism of homeostatic support functions. Detailing this direction was focused on the consideration of the action of xylate mediated through the volumetric and osmoregulatory function of the kidneys. The effect of xylate on the volumo-and osmoregulatory function of the kidneys in insulin-independent diabetes mellitus complicated by the syndrome of endogenous intoxication of purulent-septic origin was investigated. The study group consisted of 53 patients with insulin-independent diabetes mellitus complicated by the syndrome of endogenous intoxication of purulent-septic origin (IDCSEI). Under the condition of infusion loading (3 ml/kg/h for three hours) with Ringer's solution or xylate within the fragments of planned intensive care, indicators characterizing the state of the volumo- and osmoregulatory function of the kidneys were investigated. The loading with Ringer's solution in patients with IDCSEI increases sodium clearance by 260±47.8% (Δ, p=0.020), without changing the concentration of sodium ions in the blood plasma and filtration fraction and purifying the blood plasma from osmotically active substances 147±46.9% ( Δ, p=0.011). Extension of the extracellular space by infusion solutions by 3 ml/kg/h for three hours in patients with insulin-dependent diabetes mellitus, complicated by the syndrome of endogenous intoxication by purulent-septic genesis, activates volumetric and osmoregulatory function. Extension of extracellular space with infusion solution by 3 ml/kg/h for three hours in patients with insulin-independent diabetes mellitus activates volumo- and osmoregulatory function. Activation of volumetric function occurs by reducing the reabsorption of sodium and water in the proximal nephron, without increase of glomerular filtration rate, increasing the distal transport of sodium and water
ALGORITHMS FOR ADJUSTMENT OF SYMMETRY AXIS FOUND FOR 2D SHAPES BY THE SKELETON COMPARISON METHOD
Reflection symmetry detection for 2D shapes is a well-known task in Computer Vision, but there is a limited number of efficient and effective methods for its solution. Our previously proposed approach based on pair-wise comparison of sub-sequences of skeleton primitives finds the axis of symmetry within few seconds. In order to evaluate the value of symmetry relative to the found axis we use the Jaccard similarity measure. It is applied to the pixels subsets of a shape which are split by the axis. Often an axis found by the skeleton comparison method diverges more or less from the ground-truth axis found by the method of exhaustive search among all the potential candidates. That is why the algorithms that allow adjusting the axis found by the fast skeleton method are proposed. They are based on the idea of searching the axis which is located near the seed skeleton axis and has greater Jaccard similarity measure. The experimental study on the ”Flavia” and ”Butterflies” datasets shows that proposed algorithms find the ground-truth axis (or the axis which has slightly less Jaccard similarity value than the ground-truth axis) in near real time. It is considerably faster than any of the optimized brute-force methods
Isomeric pair in photonuclear reactions on Mo at end-point bremsstrahlung energy of 35-95 MeV
The Nb photonuclear reaction
was studied using the electron beam from the NSC KIPT linear accelerator
LUE-40. Experiment was performed using the activation and off-line -ray
spectrometric technique. The experimental isomeric yield ratio was
determined for the reaction products at the end-point
bremsstrahlung energy range of 35-95 MeV. The obtained
values of are in satisfactory agreement with the
results of other authors and extend the range of previously known data. The
theoretical values of the yields and the
isomeric yield ratio for the isomeric pair from the reaction were
calculated using the partial cross-sections from the TALYS1.95 code
for six different level density models . The comparison showed a noticeable
excess (more than 3.85 times) of the experimental isomeric yield ratio over all
theoretical estimates. At the investigated range of the
theoretical dependence of on energy was confirmed -
the isomeric yield ratio smoothly decreases with increasing energy.Comment: 9 pages, 9 figures, 1 tabl
Production of Hf in photoproton reaction Ta at energy = 35-95 MeV
The production of the nuclei in the photoproton
reaction was studied at end-point bremsstrahlung
energies = 35-95 MeV. The experiment was performed at the
electron linear accelerator LUE-40 NSC KIPT with the use of the
activation and off-line -ray spectroscopy.
The experimental values of the bremsstrahlung flux-averaged cross-sections
for the
reaction were determined, and at
MeV obtained for the first time.
The measured values, also as the literature data, are significantly exceed
the theoretical flux-averaged cross-sections . The values were calculated using the cross-section
computed with the TALYS1.95 code for six different level density
models.
A comparative analysis of the calculated total cross-sections for the
reactions and
was performed. It was shown that the
photoproton to photoneutron strength ratio is
consistent with the estimates based on the isospin selection rules and the
value from the experiment.Comment: 9 pages, 4 figures, 2 table
Microwave waveguide polarizer with 3 posts
Представлені результати розробки регульованого поляризатора на основі квадрат-ного хвилеводу із трьома штирями. Розроблений поляризатор працює в діапазоні від 8.0 ГГЦ до 8.5 ГГц.The results of the development of a tunable polarizer based on a square waveguide with three posts are presented. The developed polarizer operates in the range from 8.0 GHz to 8.5 GHz
Determining the toxicity of the biomass of Cladophora sp.
Finding new or alternative feeds, feed additives, and raw materials safe for health and the environment is significant in intensifying livestock production. At the same time, the fodder base obtained from aquatic ecosystems – algae – deserves special attention. The advantage of using algae as fodder is using small areas for their cultivation and a high reproduction rate. In addition, algae are grown where other plants cannot grow, and the productivity of algae is several times higher than that of higher plants. Algae can produce beneficial compounds and biomass, which are also used to increase the nutritional value of food products. Biomass obtained from algae is a source of necessary vitamins, minerals, proteins, polyunsaturated fatty acids, antioxidants, and other necessary nutrients. The composition of algae depends on the environment from which this biomass is collected, the conditions of algae cultivation, the season, the species of algae, and many other factors. In addition, it should be noted that some algae, out of the total amount, are toxic when consumed. That is why it is essential to research their toxicity. The article presents the results of studying the toxicity of the biomass of Cladophora sp. on the body of guppy fish. When studying the effect of biomass Cladophora sp. on the body of guppy fish, it was established that its use for 96 hours in doses of 5, 10, 25, 50, and 100 mg/l did not cause their death, and its LC50 is higher than 100 mg/l. In addition, no changes were detected in the behavior of the fish; they were active, mobile, and actively responding to external stimuli. The fish of the experimental groups were not distinguished from those of the control group
Photonuclear reactions cross-sections at energies up to 100 MeV for different experimental setups
In experiments on the electron linac LUE-40 of RDC "Accelerator" NSC KIPT,
the flux-averaged cross-sections of photonuclear reactions
,
,
,
, and
were measured using the
-activation technique. The theoretical flux-average cross-sections
were computed using the
partial cross-section values from the TALYS1.9-1.95 codes and
bremsstrahlung -flux calculated using GEANT4.9.2. Two different
experimental setups were used in the experiments: an aluminum electron absorber
and a deflecting magnet to clean the bremsstrahlung -flux from
electrons. A comparison of the flux-average cross-sections measured for two
experimental setups was performed. The possibility of using the reactions
,
,
,
, and
as monitors of the bremsstrahlung
-flux for the energy range 30-100 MeV was investigated.Comment: 8 pages, 6 figures, 1 tabl
Clinico–anatomical characteristic of the traffic trauma in the megapolis environment.Second report: anatomical verification of injuries
Objective.Verification of clinic–anatomical characteristics of trauma as a consequence of traffic accident in the megapolis environment.
Materials and methods. Retrospective analysis of the data obtained was conducted in 1159 injured persons, who were traumatized as a consequence of a traffic accident in megapolis.
Results.There was established, that as a result of traffic accident in the megapolis environment, the injured persons most frequently obtained trauma of the head – 68.31%, of thoracic cage – 57.07%, and of the extremities – 53.99%. The majority of the injured persons survived have had the trauma of the head (67.13%), of the thoracic cage (55.74%) and extremities (53.63%), while mostly rare – pelvic trauma (15.70%). Among the injured persons, who died, the head injuries was noted in 94.0%, thoracic trauma – in 86.0%, and abdominal injuries – in 76.0%.
Conclusion.Trauma as a consequence of traffic accident in the megapolis environment constitutes a multicomponent injury (2.4 damages in every injured person). The result of the traumatic process course depends on the injury composition (in the injured persons survived, the combination coefficient was 2.3, while in the dead – 3.8) and on damage of a certain anatomic–functional local site.The head, thoracic and pelvic sites have constituted the most dangerous localizations
Mesoscopic scattering of spin s particles
Quantum effects in weakly disordered systems are governed by the properties
of the elementary interaction between propagating particles and impurities.
Long range mesoscopic effects due to multiple scattering are derived by
iterating the single scattering vertex, which has to be appropriately
diagonalized. In the present contribution, we present a systematic and detailed
diagonalisation of the diffuson and cooperon vertices responsible for weak
localisation effects. We obtain general expressions for eigenvalues and
projectors onto eigenmodes, for any spin and arbitrary elementary interaction
with impurities. This description provides a common frame for a unified theory
of mesoscopic spin physics for electrons, photons, and other quantum particles.
We treat in detail the case of spin-flip scattering of electrons by freely
orientable magnetic impurities and briefly review the case of photon scattering
from degenerate dipole transitions in cold atomic gases.Comment: published version, with a new figure and new section
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