[Dyspnea in post-COVID-19 patients: A review].

New coronavirus infection may lead to long-term consequences, particularly to post-COVID syndrome, one of the most common manifestations of which is dyspnea. Post-COVID-19 shortness of breath may persist from one to several months and even years that results in low quality of life of patients. The review highlights possible risk factors and causes of dyspnea in post-COVID period such as lung damage, cardiovascular pathology, hyperventilation syndrome, dysfunction of the autonomic nervous system, detraining, anemia, etc.

Influence of Dietary Addition of Mineral Shungite and on Production Performance, Egg Quality, Nutrients Digestibility, and Immunity Status of Laying Hens.

The main purpose of this study was to assess the impact of using the thermally modified mineral adsorbent shungite (MAS) and the dried seaweed meal (DSM) with different doses in Brown Nick cross laying hens' diet on their productivity, nutrient digestibility, morphological and blood profile, immunity status, and egg quality. A total of 261,720 hens were used in this experiment at the age of 63 weeks, and they were randomly divided into 5 groups (feeding program) with six repetitions of 8724 chickens in each. The first served (control) as a control group where laying hens were fed the basal diet that was used on the farm only; the second and the third groups represented MAS+ and MAS++, where they received the basal diet supplemented by 0.

An Investigation on the Effects of Partial Replacement of Rapeseed Cake in Ayrshire Dairy Heifers' Diets with By-Product Source of Animal Protein on Body Weight Dynamics, Nutrient Balancing, and Blood Biochemical Markers.

Recently, the secondary use of by-products of the processing industry resulting from the production of poultry meat, which can be included in animal diets, has become a popular topic in the feed industry. For studying the effects of partial replacement of rapeseed cake (RC) with the by-product source of animal protein concentrate Agro-Matic (PCAM) on growth dynamics, nutrient absorption and nitrogen balance, as well as blood biochemical parameters during the growing period, a total of 48 Russian Ayrshire dairy heifers were selected for this experiment and they were divided into three experimental groups (16 in each group, including the control group). The heifers of the control group were fed the basal diet which contained rapeseed cake (30%), while the second (RC + PCAM) and third groups (PCAM + RC) were fed the basal diet after replacing a part of the rapeseed cake with 2.

Using AI and BES/MFC to decrease the prediction time of BOD measurement.

Biochemical oxygen demand (BOD) is one of the most important water/wastewater quality parameters. BOD is the amount of oxygen consumed in 5 days by microorganisms that oxidize biodegradable organic materials in an aerobic biochemical manner. The primary objective of this research is to apply microbial fuel cells (MFCs) to reduce the time requirement of BOD measurements.

Role of Dietary Inclusion of Phytobiotics and Mineral Adsorbent Combination on Dairy Cows' Milk Production, Nutrient Digestibility, Nitrogen Utilization, and Biochemical Parameters.

Our research purpose was to study the effect of the inclusion of a combination of phytobiotics in the form of dry grits (FG) and a mineral adsorbent from the heat-treated mineral shungite (TMS) on milk productivity, nutrient digestibility, and biochemical parameters of the Suksun dairy cows. A total of 80 dry-hardy cows of the Suksun breed were divided into four groups (20 heads each), balanced primarily by breed, age, body weight, body condition score, and indicators of milk yield for the previous lactation. The selected cows were with an average live body weight of 512.

Detection of Asthma Inhaler Use via Terahertz Spectroscopy.

Inhaled medications are commonplace for administering bronchodilators, anticholinergics, and corticosteroids. While they have a defined legitimate use, they are also used in sporting events as performance-enhancing drugs. These performance enhancers can be acquired via both legal (i.

Terahertz Spectroscopic Molecular Sensor for Rapid and Highly Specific Quantitative Analytical Gas Sensing.

Quantitative analytical gas sampling is of great importance in a range of environmental, safety, and scientific applications. In this article, we present the design, operation, and performance of a recently developed tabletop terahertz (THz) spectroscopic molecular sensor capable of rapid (minutes) and sensitive detection of polar gaseous analytes with near "absolute" specificity. A novel double-coil absorption cell design and an array of room-temperature sorbent-based preconcentration modules facilitate quantitative THz detection of light polar volatile compounds, which often challenge the capabilities of established gas sensing techniques.

Destructive coastal sea level oscillations generated by Typhoon Maysak in the Sea of Japan in September 2020.

Typhoon Maysak (Julian in the Philippines) was a powerful tropical cyclone that strongly impacted coastal regions of the Sea of Japan on 2-4 September 2020. Destructive winds, violent storm waves, and intense rainfall occurred in Japan, on the Korean Peninsula, and in Far-Eastern Russia. Devastating coastal floods caused severe damage to coastal infrastructure and to ships and boats anchored in harbours and were responsible for numerous deaths.

Classical master equations and broadened classical master equations: Some analytical results.

Some analytical results for the steady-state properties of the single-molecule tunneling junction are obtained with the use of the broadened classical master equations and classical master equations. The case of the one electronic level of the bridge molecule coupled to a single classical harmonic oscillator is considered within the spin-less model. Based on these equations, we establish some relations between different average values of interest, considering the large bias limit and the limit of the weak electron-oscillator coupling.

Case Report: A 64-Year-Old Man with 10-Year History of Eosinophilic Granulomatosis with Polyangiitis with Bronchiectasis and Severe Klebsiella pneumonia.

BACKGROUND Eosinophilic granulomatosis with polyangiitis (EGPA) is a rare and severe progressive disease with multiple clinical manifestations and organ damage. Usually, it requires long-term monitoring of the state of many organs due to the gradual character of its manifestations. CASE REPORT We report a case of a long-term follow-up of a patient with eosinophilic granulomatosis with polyangiitis with emphasis on specific clinical features in this patient.

Continuous Hue-Based Self-Calibration of a Smartphone Spectrometer Applied to Optical Fiber Fabry-Perot Sensor Interrogation.

Smartphone-based optical spectrometers allow the development of a new generation of portable and cost-effective optical sensing solutions that can be easily integrated into sensor networks. However, most commonly the spectral calibration relies on the external reference light sources which have known narrow spectral lines. Such calibration must be repeated each time the fiber and diffraction grating holders are removed from the smartphone and reattached.

[Hypervitaminosis B12 - a new marker and predictor of prognostically unfavorable diseases].

A high serum vitamin B12 level (hypercobalaminemia) is a underestimated anomaly. Clinically, it can be paradoxically accompanied by signs of deficiency, which are related to defects in tissue uptake of vitamin B12. The increase in the level of serum cobalamin occurs mainly in serious diseases that require early diagnosis: hemoblastosis, liver and kidney diseases, etc.

Atmospheric and Marine Corrosion of PEO and Composite Coatings Obtained on Al-Cu-Mg Aluminum Alloy.

Wrought Al-Cu-Mg aluminum alloy (D16) was treated by bipolar plasma electrolytic oxidation to create a base plasma electrolytic oxidation (PEO)-coating with corrosion protection and mechanical properties superior to bare alloy's natural oxide layer. Additional protection was provided by the application of polymer, thus creating a composite coating. Electrochemical and scratch tests, scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction studies were performed.

Immune-inflammatory concept of the pathogenesis of chronic heart failure in dogs with dilated cardiomyopathy.

Background: Dilated cardiomyopathy is common in dogs. This form of cardiomyopathy is the main cause of death due to heart disease in dogs. Death can occur suddenly in clinically normal animals as a result of the progression of congestive heart failure (CHF).

Difficulties in Goodpasture's syndrome diagnosing.

The article analyzes the diagnosis and treatment of anti-GBM antibody disease (Goodpasture's syndrome) - a rare, severe progressive disease, associated with anti-glomerular basement membrane antibody-induced pulmonary hemorrhage and glomerulonephritis. The main problem of this pathology is late diagnosis, resulted in ineffective treatment. The article provides current information on the epidemiology, etiology and pathogenesis, diagnosis, and treatment of Goodpasture's syndrome, as well as clinical case of a patient with this rare disease.

Analytical expression for the tunnel current through the redox-mediated tunneling contact in the case of the adiabatic electron transfer at one of the working electrodes and any possible type of the electron transfer at the other electrode.

We study the tunnel current through a one-level redox molecule immersed into the electrolyte solution for the case when the coupling of the molecule to one of the working electrodes is strong while it is arbitrary to the other electrode. Using the Feynman-Vernon influence functional theory and the perturbation expansion of the effective action of the classical oscillator coupled both to the valence level of the redox molecule and to the thermal bath representing the classical fluctuations of the polarization of the solvent, we obtain, following the canonical way, the Langevin equation for the oscillator. It is found that for the aqueous electrolyte solution, the damping and the stochastic forces which arise due to the tunnel current are much smaller than those due to the thermal bath and therefore can be neglected.

Relative prosthesis-patient mismatch after transcatheter aortic valve replacement: The impact of morbid obesity.

Prosthesis-patient mismatch (PPM) is defined as a small effective orifice area (EOA) of a normally functioning prosthetic valve in relation to patient body size. Even moderate impediment to forward flow has been associated with an increase in all-cause mortality. We report an unusual cause of PPM where a transcatheter implantation of a large EOA valve in an aortic position results in relative PPM in a patient with morbid obesity.

A rigorous detection of interstellar CHNCO: An important missing species in astrochemical networks.

The recent analysis of the composition of the frozen surface of comet 67P/Churyumov-Gerasimenko has revealed a significant number of complex organic molecules. Methyl isocyanate (CHNCO) is one of the more abundant species detected on the comet surface. In this work we report extensive characterization of its rotational spectrum resulting in a list of 1269 confidently assigned laboratory lines and its detection in space towards the Orion clouds where 399 lines of the molecule have been unambiguously identified.

[Dynamics of violations of intravascular platelet activity in rats during the formation of metabolic syndrome using fructose models].

Objective: To trace the development of disorders intravascular platelet activity in experimental form of the metabolic syndrome. The study included 61 rat male Wistar rats at the age of 2.5-3 months.

[Conditionally pathogenic microorganisms in patients with bisphosphonate jaw osteonecrosis].

The objective of the study was to define treatment strategy in cases of facial bones bisphosphonate induced osteonecrosis based on the study of the role of conditionally pathogenic oral microorganisms. Three typical clinical cases of bisphosphonate osteonecrosis of the facial bones were analyzed and 15 conditionally pathogenic oral microorganisms were identified in these patients using real-time PCR in saliva, wound and bone samples. A comparative analysis was carried out with purulent-inflammatory diseases of maxillofacial area.

Improved Sensitivity MEMS Cantilever Sensor for Terahertz Photoacoustic Spectroscopy.

In this paper, a microelectromechanical system (MEMS) cantilever sensor was designed, modeled and fabricated to measure the terahertz (THz) radiation induced photoacoustic (PA) response of gases under low vacuum conditions. This work vastly improves cantilever sensitivity over previous efforts, by reducing internal beam stresses, minimizing out of plane beam curvature and optimizing beam damping. In addition, fabrication yield was improved by approximately 50% by filleting the cantilever's anchor and free end to help reduce high stress areas that occurred during device fabrication and processing.

[PLATELET AGGREGATION IN CLINICALLY HEALTHY PERSONS OF THE SECOND COMING OF AGE LIVING IN THE KURSK REGION].

This work is dedicated to the study of the aggregation of platelet activity in healthy persons the second coming of age. The study group included 146 clinically healthy people of the second coming of age, leading a healthy lifestyle and not having metabolic and cardiovascular diseases. In healthy people of 36-45 years noted the lack of reliable antioxidant dynamics of platelets and levels of lipid peroxidation.

[Platelet functional activity in clinically healthy elderly].

The article contains the results of a study platelet aggregation in carefully selected clinically healthy elderly. The study was performed on 121 clinically healthy elderly people, leading a healthy lifestyle, and do not have metabolic, cancer and cardiovascular disease. We surveyed people between 61 and 74 years showed a significant weakening of antioxidant protection and increasing in platelet levels in their lipid peroxidation.