It appeared certain that elastin condensates retain liquid-like properties. However, a recent experimental study demonstrated that their aggregate states might depend on the length of hydrophobic domains. To gain microscopic insight into this behavior, we employ atomistic modeling to assess the conformational properties of hydrophobic elastin-like polypeptides (ELPs).
View Article and Find Full Text PDFNucleation is an essential step of overall crystallization, yet crystal nuclei are elusive to direct observation due to their small size and transient nature. A method for assessing the nuclei size distribution and growth rate based on selective melting/dissolving was developed recently, making use of the rapid heating/cooling rate available in fast scanning calorimetry. The method was first employed to study the nuclei in the polymer poly-L-lactic acid.
View Article and Find Full Text PDFA new complex of copper(II) with methyl-5-(trifluoromethyl)pyrazol-3-yl-ketazine (HL) was synthesized with the composition [CuL]∙CHOH (). Recrystallization of the sample from DMSO yielded a single crystal of the composition [CuL((CH)SO)] (). The coordination compounds were studied by single-crystal X-ray diffraction analysis, IR spectroscopy, and static magnetic susceptibility method.
View Article and Find Full Text PDFProbl Sotsialnoi Gig Zdravookhranenniiai Istor Med
July 2024
The article considers social, demographic and professional factors determining choice by general practitioners and district therapists of place of employment and their professional motivation. The special questionnaire was developed to be applied in sociological survey. The sampling included general practitioners and district therapists of outpatient medical organizations of the Health Department and the private health care sector of Moscow.
View Article and Find Full Text PDFProbl Sotsialnoi Gig Zdravookhranenniiai Istor Med
March 2024
The article presents comparative analysis of demographic, social and professional characteristics of general practitioners and district therapists in state and private medical organizations. Sociological, statistical and analytical research methods were applied. The study was carried out on the basis of polyclinics of both Moscow Health Department and Moscow private health care sector.
View Article and Find Full Text PDFProbl Sotsialnoi Gig Zdravookhranenniiai Istor Med
November 2023
The patient satisfaction is one of the key criteria of quality of medical care and indicator of patient-oriented approach and factor determining competitiveness of medical organization. The purpose of the study - the comparative analysis of patient satisfaction with primary health care provided by general practitioner and district physician, taking into account their gender, age characteristics, frequency and goals of visiting polyclinic. Sociological study was carried out on the basis of out-patient medical organizations in Moscow, Kemerovo and Belgorod.
View Article and Find Full Text PDFProbl Sotsialnoi Gig Zdravookhranenniiai Istor Med
September 2023
The choice of specialty by graduate of medical university can be promoted by particular social, demographic and personal characteristics. Purpose of the study is to investigate demographic, social and personal characteristics of students in residency on specialty "General Medical Practice" in the Russian Federation. The sociological, statistical and analytical methods are applied.
View Article and Find Full Text PDFProbl Sotsialnoi Gig Zdravookhranenniiai Istor Med
July 2023
In conditions of active development of medical and pharmaceutical sciences and dynamically changing work environment the education of physician is to be both continuous and personalized. Purpose of the study. To investigate effect of gender, age and work experience on educational needs and on preferences of forms and methods of training in the system of continuing medical education of Russian general practitioners.
View Article and Find Full Text PDFEmulsions often act as carriers for water-insoluble solutes that are delivered to a specific target. The molecular transport of solutes in emulsions can be facilitated by surfactants and is often limited by diffusion through the continuous phase. We here investigate this transport on a molecular scale by using a lipophilic molecular rotor as a proxy for solutes.
View Article and Find Full Text PDFProbl Sotsialnoi Gig Zdravookhranenniiai Istor Med
December 2022
The feminization and middle age decreasing in general practitioner profession is a worldwide trend.Purpose of the study is to explore gender and age structure, professional characteristics of general practitioners in Moscow.The retrospective analysis of personal records of students of the Chair of General Medical Practice of the Institute of Professional Education of the The I.
View Article and Find Full Text PDFIn the fall of 2020, a long-lasting and massive harmful algal bloom (HAB) with extensive fields of yellow sea foam was observed in relatively cold waters (7-13 °C) off the coasts of the Kamchatka Peninsula, Russia. According to the estimates based on bio-optical parameters in satellite imagery, the Kamchatka bloom 2020 lasted for two months and covered a vast area of more than 300 × 100 km. An abundance of dead fish and invertebrates, including sea urchins, sea anemones, chitons, cephalopods, bivalves were found on shore during the bloom.
View Article and Find Full Text PDFObjectives: Patients undergoing cardiac surgery develop post-sternotomy pain syndrome. The aim of this study was evaluation of the influence of , and genes polymorphisms on the efficacy and safety of postoperative analgesia with ketoprofen in patients with coronary artery disease after cardiac surgery.
Methods: The study included 90 patients undergoing cardiac surgery.
Background: Prenatal exposure to ethanol can cause fetal alcohol spectrum disorder (FASD), a prevalent, preventable pediatric disorder. Identifying genetic risk alleles for FASD is challenging since time, dose, and frequency of exposure are often unknown, and manifestations of FASD are diverse and evident long after exposure. Drosophila melanogaster is an excellent model to study the genetic basis of the effects of developmental alcohol exposure since many individuals of the same genotype can be reared under controlled environmental conditions.
View Article and Find Full Text PDFWe investigate the temperature dependence of thermodynamic (density and isobaric heat capacity), dynamical (self-diffusion coefficient and shear viscosity), and dielectric properties of several water models, such as the commonly employed TIP3P water model, the well-established four-point water model TIP4P-2005, and the recently developed four-point water model TIP4P-D. We focus on the temperature range of interest for the field of computational biophysics and soft matter (280-350 K). The four-point water models lead to a spectacularly improved agreement with experimental data, strongly suggesting that the use of more modern parameterizations should be favored compared to the more traditional TIP3P for modeling temperature-dependent phenomena in biomolecular systems.
View Article and Find Full Text PDFDespite impressive results in restoring physical performance in rodent models, treatment with renin-angiotensin system (RAS) inhibitors, such as Lisinopril, have highly mixed results in humans, likely, in part, due to genetic variation in human populations. To date, the genetic determinants of responses to drugs, such as RAS inhibitors, remain unknown. Given the complexity of the relationship between physical traits and genetic background, genomic studies which predict genotype- and age-specific responses to drug treatments in humans or vertebrate animals are difficult.
View Article and Find Full Text PDFThe purpose of the study is to estimate the effectiveness of complex treatment of patients with pulmonary tuberculosis in the phase of resorption and carnification at the spa stage with the use of drinking mineral water of medium mineralization and focused pulse magnetic therapy in combination with antituberculous chemotherapy. In order to solve the tasks, the study included 120 patients with focal pulmonary tuberculosis in the phase of resorption and carnification who came to sanatorium "Teberda" to get spa treatment. The patients were distributed into 3 groups by simple randomization: in the comparison group the patients received climatic- and anti-tuberculosis chemotherapy; in the main group 1 the patients were additionally prescribed drinking mineral water "Teberda"; in the main group 2 the patients had a focused magnetic therapy in addition to the treatment of the 1st group.
View Article and Find Full Text PDFThe aim of the study is to assess the effectiveness of quality control of transport environments in accordance with the requirements of domestic and international standards using aerobic and optional anaerobic microorganisms. The results of a comparative assessment of the survival of 10 strains of aerobic and optional anaerobic microorganisms after storage in the semi-liquid transport environment of Ames for 24 and 48 hours at temperatures (4-8)0 C and (20-25)0 C in accordance with the requirements of domestic and international standards are presented. The methodology described in ICC 4.
View Article and Find Full Text PDFUnlabelled: The active exploration of space requires minimizing negative effects induced by weightlessness (microgravity). Risk reduction can be achieved with the use of artificial gravity created by short-radius centrifuge (SRC). Short-radius centrifuge causes redistribution of body liquids towards the caudal portion of the body imitating a vertical human pose.
View Article and Find Full Text PDFA historical cohort study in workers occupationally exposed to chrysotile was set up in the town of Asbest, the Russian Federation, to study their cause-specific mortality, with a focus on cancer. Chrysotile has different chemical and physical properties compared with other asbestos fibres; therefore it is important to conduct studies specifically of chrysotile and in different geographical regions to improve the knowledge about its carcinogenicity. Setting was the town of Asbest, Sverdlovsk oblast, the Russian Federation.
View Article and Find Full Text PDFThe results of the comparative testing of the susceptibility of M. tuberculosis clinical strains to isoniazid, streptomycin, rifampicin and ethambutol using the TB test kit, developed in SCRAMB, (Obolensk) and the absolute concentrations method; the TB test kit and the BACTEC MGIT 960 automated system are presented in the study. A total of 629 and 220 strains, respectively, were tested.
View Article and Find Full Text PDFA new technology platform built on the integration of theory and experiments to enable the design of Janus colloids with precision control of surface anisotropy and amphiphilicity could lead to a disruptive transformation in the next generation of surfactants, photonic or phononic materials, and coatings. Here, we exploit molecular dynamics (MD) simulations to guide the rational design of amphiphilic polymer Janus colloids by Flash NanoPrecipitation (FNP), a method capable of the production of colloids with complex structure without the compromise of reduced scalability. Aided by in silico design, we show in experiments that amphiphilic Janus colloids can be produced using a unique blend of hydrophobic homopolymers and the addition of an amphiphilic block copolymer.
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