Three-dimensional structure of chromosomes displays diverse patterns across the tree of life, with compartments, interaction domains and loops being quite universally observed. The archaeal kingdom remains understudied to this extent so far, despite representing an interesting area from evolutionary and other perspectives. Here we describe the spatial chromosomal organization of a hyperthermophilic crenarchaeon Thermofilum adornatum strain 1910b based on high-throughput chromosome conformation capture (3C-seq) approach. The chromosome contact map showed a curved secondary diagonal almost orthogonal to the main one. No evidence of chromosome loops was present. We were able to identify boundaries of different strengths between chromosome interaction domains (CIDs) albeit moderate. The plaid-like patterns previously reported for Sulfolobus Archaea were not observed. However, the calculation of A/B compartments divided the genome into 2 domains that were different by the density of predicted highly expressed genes and location of origins. Further comparison of these domains with whole-genome gene expression profiles will allow to test whether these domains represent expression-associated compartments. If so, it is possible that they represent primitive compartments evolutionarily older than the plaid patterns of Sulfolobus and higher eukaryotes. Further exploration of 3D chromatin in all branches of archaeal diversity will elucidate the evolution of the links between structural and functional organization in live organisms.

Background: Carbon nanotubes (CNTs) are novel materials with considerable potential in many areas related to nanomedicine. However, a major limitation in the development of CNT-based therapeutic nanomaterials is a lack of reliable and reproducible data describing their chemical and structural composition. Knowledge of properties including purity, structural quality, dispersion state, and concentration are essential before CNTs see widespread use in in vitro and in vivo experiments. In this work, we describe the characterization of several commercially available and two in-house-produced CNT samples and discuss the physicochemical profiles that will support their use in nanomedicine. Methods: Eighteen single-walled and multi-walled CNT raw materials were characterized using established analytical techniques. Solid CNT powders were analyzed for purity and structural quality using thermogravimetric analysis and Raman spectroscopy. Extinction coefficients for each CNT sample were determined by ultraviolet-visible near infrared absorption spectroscopy. Standard curves for each CNT sample were generated in the 0-5 µg/mL concentration range for dispersions prepared in 1,2-dichlorobenzene. Results: Raman spectroscopy and thermogravimetric analysis results demonstrated that CNT purity and overall quality differed substantially between samples and manufacturer sources, and were not always in agreement with purity levels claimed by suppliers. Absorbance values for individual dispersions were found to have significant variation between individual single-walled CNTs and multi-walled CNTs and sources supplying the same type of CNT. Significant differences (P , 0.01) in extinction coefficients were observed between and within single-walled CNTs (24.9-53.1 mL·cm ). The results described here suggest a considerable role for impurities and structural inhomogeneities within individual CNT preparations and the resulting spectroscopic properties of their dispersions. Conclusion: Raw CNT materials require thorough analytical workup before they can be used as nanoexcipients. This applies especially to the determination of CNT purity, structure, and concentration. The results presented here clearly demonstrate that extinction coefficients must be determined for individual CNT preparations prior to their use.

The article gives the justification of the personified approach to diagnostics, prevention and treatment of metabolic syndrome among inhabitants of Khakassia. The article reveals additional data confirming the phenomenon of a population dimorphism of metabolic syndrome referring to a complex clinical laboratory examination of two ethnic populations living in Khakassia – Khakas who represent the indigenous people originating from Mongoloids and non-indigenous population (Caucasians). The authors demonstrate statistically and clinically significant differences in the frequency of their occurrence and intensity of separate symptoms and cardiovascular complications of metabolic syndrome. It is shown that indigenous people suffering from metabolic syndrome have less intensive visceral obesity in comparison with non-indigenous population. Multiagent metabolic syndrome is established to prevail among both indigenous and non-indigenous people. The combination of only two agents is considerably rarer among Khakas with metabolic syndrome than among non-indigenous inhabitants with this disease. The ultrasonic examination of carotids proves that Khakas suffering from metabolic syndrome have more intensive thickening of intima-media in comparison with the non-indigenous, with less intensive visceral obesity among Khakas. Visceral obesity of Khakas associates with high risk of intima-media thickening (OR=2,95).

The issues of risk management that can arise systematically in the economic and financial activities of the organization are considered. The understanding of the essence and content of risks, the process of risk management is presented. The types of risks, methods of risk assessment and risk management are considered. For students studying in the areas of "Economics" and "Management", as well as engineering and technology directions of universities that study the disciplines of the economic and organizational cycle; For graduate students, students of business schools and the system of advanced training and retraining of personnel. It can be useful for teachers of universities, employees of research and consulting firms, business structures, managers and specialists of enterprises.

The paper presents the analysis of clinical case of endoscopic nasal breath restoration and elimination of the secondary cleft lip nasal deformity in 27 years old patient with unilateral choanal atresia and secondary nasal deformity after rhinocheiloplasty. Preoperative examination revealed the absence of nasal breathing on collateral side due to complete bone choanal atresia. Surgical treatment included endoscopic choanal repair, elimination of the secondary nasal deformity, septoplasty, conchotomy and lateroposition of the inferior conchae. The treatment resulted in nasal breath restoration and elimination of nasal deformity. Long-term follow-up at 1 and 12 months post-operatively proved stable positive aesthetic and functional results.