Preparation, acid modification and catalytic activity of kaolinite nanotubes in α-pinene oxide isomerization.

In this work kaolinite nanotubes (KNT) were obtained from commercial kaolin AKF-78 (Uzbekistan) by starting material sequential intercalation by DMSO and methanol, followed by treatment with a cetyltrimethylammonium chloride solution. Acid functionalization of KNT for catalytic applications was successfully performed for the first time using a two-step treatment with piranha solution (HSO-HO), which resulted in the removal of organic impurities as synthetic artifacts and an increase in specific surface area by 3.9 times (up to 159 m g), pore volume by 1.

Record-High Thermoelectric Performance in Al-Doped ZnO via Anderson Localization of Band Edge States.

Oxides are of interest for thermoelectrics due to their high thermal stability, chemical inertness, low cost, and eco-friendly constituting elements. Here, adopting a unique synthesis route via chemical co-precipitation at strongly alkaline conditions, one of the highest thermoelectric performances for ZnO ceramics (  21.5 µW cm K and  0.

Phase Formation during the Synthesis of the MAB Phase from Mo-Al-B Mixtures in the Thermal Explosion Mode.

This work focused on the production of the MoAlB MAB phase through self-propagating, high-temperature synthesis in the thermal explosion mode. The influence of the method of a Mo-Al-B-powder reaction mixture preparation on the combustion temperature, mechanism, and stages of the MAB phase formation in the combustion process was investigated. The combustion temperatures of the mixtures obtained in the rotary ball mill and high-speed planetary ball mill were 1234 and 992 °C, respectively.

Piezo-Responsive Hydrogen-Bonded Frameworks Based on Vanillin-Barbiturate Conjugates.

A concept of piezo-responsive hydrogen-bonded π-π-stacked organic frameworks made from Knoevenagel-condensed vanillin-barbiturate conjugates was proposed. Replacement of the substituent at the ether oxygen atom of the vanillin moiety from methyl (compound ) to ethyl (compound ) changed the appearance of the products from rigid rods to porous structures according to optical microscopy and scanning electron microscopy (SEM), and led to a decrease in the degree of crystallinity of corresponding powders according to X-ray diffractometry (XRD). Quantum chemical calculations of possible dimer models of vanillin-barbiturate conjugates using density functional theory (DFT) revealed that π-π stacking between aryl rings of the vanillin moiety stabilized the dimer to a greater extent than hydrogen bonding between carbonyl oxygen atoms and amide hydrogen atoms.

[PSYCHOLOGICAL CARE FOR SCHOOL-AGE PATIENTS WITH CORONAVIRUS INFECTION IN THE HOSPITAL].

For the first time in pediatric practice, the psychological state of 100 children (7-17 years old) with COVID-19 in the state of hospitalization was studied on the basis of the Scientific Medical Research Center of Children's Health of the Russian Ministry of Health Care and the directions of psychological and pedagogical assistance were determined. Analysis of medical and psychological-pedagogical documentation, conversation, observation, screening diagnostics were conducted. It was established that according to the totality of physical and psychological factors (the main psychological difficulty) patients can be grouped into the following groups: children in a severe physical state, with unstable manifestations of mental activity (n = 4; 4%); children in a predominantly moderately severe state with significant distress related to the disease (n = 48; 48%); children in a satisfactory physical state, with mild and mostly situational difficulties in adapting to the situation of hospitalization (n = 46; 46%); children in a satisfactory physical state, in a relatively stable positive psychological state (n = 2; 2%).

Study of microbiome changes in patients with ulcerative colitis in the Central European part of Russia.

Ulcerative colitis (UC) is an inflammatory disease that affects the colon and rectum. Recently, evidence has emerged about the influence of microbiota on the development of this disease. However, studies on the role of intestinal microbiota in the pathogenesis of UC have been incomplete.

[Possibilities of application of modern training methods (project activities) in training health care organizers on the example of a military medical educational organization].

The efficiency of health care and the quality of medical care can be improved by implementing modern management methods and technologies. It requires modern and high-quality training of medical management personnel. Qualified personnel are the key factor in the organization and transformation of the health system.

[Organisational aspects of medical support for civilians employed in the Armed Forces in the military-medical institutions of the Ministry of Defence, deployed in Moscow].

Organisational aspects of medical support for civilians employed in the Armed Forces in the military-medical institutions of the Ministry of Defence, deployed in Moscow. To ensure social protection of the civilian personnel of the Armed Forces is one of the main tasks of the Ministry of Defence of the Russian Federation. In Moscow formed a territorial system of medical support of citizens who have the right for medical care in military medical institutions of the Ministry of Defence of the Russian Federation.

[The Study of Psychological Characteristics of Children and Adolescents with Digestive Diseases].

Objective: The present study was aimed at the psychological characteristics of children with different chronic diseases of the digestive system and the identification of key factors influencing the formation of their personality.

Methods: The continuous prospective study of psychological peculiarities of 125 patients (7-17 y.o.

[Marketing in the system of military-medical facilities].

Military medical facilities of the Ministry of Defence of the Russian, have received the right to provide additional services and have been involved in the sphere of market relations. The strong influence of market relations - an objective reality that must be used for the development of military medical institutions and improving quality of care.Effective commercial activity can improve capabilities of the military medical institutions.

[Determination of morphine and codeine in forensic chemical studies with the use of a single quadrupole mass-selective detector coupled to the HPLC system].

It was shown that a single quadrupole mass-selective detector coupled to the HPLC system can be used in forensic chemical practice for the detection and quantitative measurement of morphine and codeine in forensic in various biological objects. An algorithm for the reliable identification of opiates in a concentration range starting from 0.002 mg% with a relative error below 20% (mean ca 9.

Modeling myocardial infarction in mice: methodology, monitoring, pathomorphology.

Myocardial infarction is one of the most serious and widespread diseases in the world. In this work, a minimally invasive method for simulating myocardial infarction in mice is described in the Russian Federation for the very first time; the procedure is carried out by ligation of the coronary heart artery or by controlled electrocoagulation. As a part of the methodology, a series of anesthetic, microsurgical and revival protocols are designed, owing to which a decrease in the postoperational mortality from the initial 94.

[Histological and molecular-biological markers of malignancy in different variants of thyroid papillary carcinoma].

Material for this study from 61 patients (thyroid papillary carcinoma) is shown to represent a heterogenic group of tumors differing from each other morphologically, molecular-biologically and histogenetically. The most malignant were long-cell and B-cell variants and the least malignant--a follicular variant. 81% of the tumors had neuro-endocrine differentiation and their malignant potential was higher compared to tumors without this differentiation.

[Changes in prostate-specific antigen in casodex (bicalutamide) monotherapy in a dose 150 mg/day given to patients with locally advanced and/or advanced prostatic cancer].

Three-month treatment with casodex (150 mg/day) of untreated patients with locally advanced and/or advanced cancer of the prostate is well tolerated. The only side effect encountered in 9(60%) patients was temporary breast painfulness and swelling. Subjective effects consisted of higher activity (in 40% of patients), pain relief (in 33.

[Effects of infant formula feeding on the distribution of copper in the body of 8-day-old rats].

The oxidase activity of ceruloplasmin (Cp, EC 1.16.3.

Zinc in the human prostate gland: normal, hyperplastic and cancerous.

Zinc concentration in a prostate gland is much higher than in other human tissues. Data for zinc changes in different prostate diseases are limited and greatly contradictory. To analyze transrectal puncture tissue biopsy and resected materials, zinc content was estimated in benign prostatic hyperplasia (BPH) and cancer.

Zinc concentration in human prostatic fluid: normal, chronic prostatitis, adenoma and cancer.

Radionuclide induced energy dispersive X-ray fluorescence was used to estimate zinc content in prostatic fluid in normal, chronic prostatitis, adenoma and cancer cases, Groups of patients suffering from chronic prostatitis, adenoma and malignant tumours consisting of 28, 28 and 13 men, respectively, were examined. The control group included 22 healthy volunteers. Expressed prostatic fluid was obtained by digital rectal massage.

[The late results of the combined hormonal chemoradiation treatment of prostatic cancer].

Combined treatment of 111 patients with prostatic cancer stage IV including 3 components (hormones, drugs and radiation) proved superior by survival and tolerance over hormone therapy alone. Relevant dosages and regimens are detailed.

[The immune homeostasis of patients with prostatic cancer on hormonal chemotherapy, radiation treatment and immunological action].

The trial covered 58 patients with prostatic cancer aged 50-79. Before treatment these patients exhibited weak proliferative response of T-cells to PHA, increased number of T-suppressors/killers, enhanced suppressive influence of regulatory cells. Hormone chemotherapy produced immunodepressive and immunomodulating effects (normalization of the count of T-suppressors/killers and their function).

[Assisted blood circulation, efferent detoxication and hyperbaric oxygenation in the treatment of exotoxic shock].

Experimental and clinical data on the employment of assisted circulation with extracorporeal oxygenation of the blood, exchange replacement of the blood in high volumes, hemoperfusion, and hyperbaric therapy in the treatment of exotoxic shock caused by methemoglobin-forming and corrosive poisons demonstrate a high efficacy of assisted circulation in the normalization of central hemodynamics (which permits exchange replacement of the blood and hemoperfusion), of the hepatorenal function, hemostasis, and other parameters of the internal media in humans and animals. The method is recommended for wide use at large reanimation and toxicological centers.