Temporal dynamics of change of polycrystalline component of bioctisses and blood of death from poisoning by alcohol and carbon with different time since death

The article contains the results of a study of the effectiveness of forensic medical determination of the prescription of death by the method of differential Müller-matrix polarization-phase tomography, which is implemented by multichannel probing of rhizopolarization with laser beams of histological sections of the brain, myocardium, adrenal glands, liver and blood of the deceased and multichannel polarization filtration series images with algorithmic reproduction (reconstruction) of coordinate distributions (tomograms) of the average linear birefringence (LD) of polycrystalline networks. Aim of the work. Efficiency study by the method of differential Müller-matrix polarization-phase tomography for determining the duration of death. Materials and methods. The object of the study was the histology of samples of human internal organs (brain, myocardium, adrenal glands, and liver) with different duration of damage from 6 hours to 48 hours (we used BT samples from those who died from alcohol poisoning and carbon monoxide poisoning). For control, we used BT samples from those who died from ischemic heart disease with different duration of damage from 6 hours to 48 hours. The studies were carried out using the method of differential Muller-matrix polarization-phase tomography. Results. The range of linear change in the magnitude of the higher-order statistical moments, and accordingly the analytical determination of the DNS, lies in the range from 20 hours to 48 hours. The accuracy of determining the DNS is also significantly improved and amounts to 0.5 hours. Conclusion. The high efficiency of Muller matrix algorithmic reproduction of maps of average values of birefringence of the optically anisotropic component of biological preparations of the deceased was revealed.

ENTERAL INSUFFICIENCY COURSE SEVERITY DEGREES DIAGNOSTICS IN PERITONITIS BY SMALL INTESTINAL MICROSCOPIC IMAGES PHASE MAPING

Summary. The aim is to determine the efficiency of diagnostics of the enteric insufficiency syndrome severity in peritonitis by phase mapping of microscopic images of histological sections of the laboratory rats’ small intestine. Material and methods. Seventy-eight white nonlinear rats of both sexes were selected, weighing from 180 to 220 g, underwent simulated mild, moderate and severe experimental peritonitis according to the standard method. Samples of optically thin histological sections of the small intestine of rats with different severity of the course of peritonitis were used as the research object. Results. As a result of the study, a structural and logical scheme for studying the effectiveness of differential diagnosis of the severity of peritonitis by means of statistical analysis of the structure of the distribution of phases of microscopic images of biological preparations of rats was developed, which helped to determine the relationships between the distribution of statistical parameters of the 1st–4th orders, which characterize phase maps depending on the severity of the peritonitis course. Conclusion. The revealed changes in the statistical structure of phase maps fully correlate with the measurement data for the polarization phase manifestations of the properties of the polycrystalline component of histological sections, both in the case of the phase measurement of polycrystalline blood films and the wall of the small intestine.

Migrating tide climatologies measured by a high-latitude array of SuperDARN HF radars

This study uses hourly meteor wind measurements from a longitudinal array of 10 high-latitude SuperDARN high-frequency (HF) radars to isolate the migrating diurnal, semidiurnal, and terdiurnal tides at mesosphere–lower-thermosphere (MLT) altitudes. The planetary-scale array of radars covers 180∘ of longitude, with 8 out of 10 radars being in near-continuous operation since the year 2000. Time series spanning 16 years of tidal amplitudes and phases in both zonal and meridional wind are presented, along with their respective annual climatologies. The method to isolate the migrating tides from SuperDARN meteor winds is validated using 2 years of winds from a high-altitude meteorological analysis system. The validation steps demonstrate that, given the geographical spread of the radar stations, the derived tidal modes are most closely representative of the migrating tides at 60∘ N. Some of the main characteristics of the observed migrating tides are that the semidiurnal tide shows sharp phase jumps around the equinoxes and peak amplitudes during early fall and that the terdiurnal tide shows a pronounced secondary amplitude peak around day of year (DOY) 265. In addition, the diurnal tide is found to show a bi-modal circular polarization phase relation between summer and winter.

High-dimensional quantum key distribution using polarization-phase encoding: security analysis

In this work, we introduce a high-dimensional polarization-phase (PoP)-based quantum key distribution protocol, briefly named PoP[Formula: see text], where [Formula: see text] is the dimension of a hybrid quantum state including polarization and phase degrees of freedom of the same photon, and [Formula: see text] is the number of mutually unbiased bases. We present a detailed description of the PoP[Formula: see text] protocol as a special case, and evaluate its security against various individual and coherent eavesdropping strategies, and in each case, we compare it with the BB84 and the two-dimensional (TD)-PoP protocols. In all the strategies, the error threshold and the effective transmission rate of the PoP[Formula: see text] protocol are far greater than the other two protocols. Unlike most high-dimensional protocols, the simplicity of producing and detecting the qudits and the use of conventional components (such as traditional single-photon sources and quantum channels) are among the features of the PoP[Formula: see text] protocol.