Injuries and Diseases of the Population of the Upper Sura and Moksha Rivers in the 17th–18th CC

The article characterizes the anthropological materials with traces of pathological changes. All material has been discovered in the territory of the Upper Sura and Moksha rivers, and dated the 17th-18th centuries. Two osteological collections from older cemeteries were studied. The first collection was found in the territory of Penza city, and the second collection was found discovered in Narovchat town. Traces of post-traumatic changes are often identified on the bones. They are localized on the cranial vault, in the orbit region, etc. Traces of fractures on the clavicles are often revealed. Traces of oncology disease are relatively rare. There are nu­merous bones with traces of syphilis pathological changes in the materials from the territory of Penza. These traces are discovered on the skulls and bones of the postcranial skeleton (mostly the tibia). The materials from Narovchat feature two skulls with tooth incision pathologies. In one case, there were signs of anomalies in the development of pelvic bones as a result of rhizomelic spondylitis

Male Skeleton from Burial No. 7 of the Mordva-Moksha Bednodemyanovsk Burial Ground of the XIII–XIV Centuries

The article presents the complex characteristic of the skeleton from burial № 7 of the Bednodemyanovsk burial ground of the Mordva-Moksha. The archeological site is dated to the Golden Horde period (XIII–XIV centuries) and is located in Upper Moksha river. The skeleton belonged to the man aged 35–55 years. The aim of the study was to make the most complete reconstruction of the morphological specifics of the individual and his life activity. For this purpose, the bones were carefully studied visually and metrically. Cone beam computed tomography was performed on a VATECH PAX 1 3D device with Ez3D-i64 software. The approximate body length of the individual was determined (about 169.0 cm). The longitudinal measurements of the long tubular bones were the base for it. The skeleton showed multiple traces of pathological changes and indicators of mechanical stress. The individual (apparently in infancy) had the foot trauma. The fracture of the right clavicle in the middle third of the body was in adulthood. A specific characteristic of the individual was spastic contraction of the facial muscles of the lower right side of the face, possibly as a result of facial nerve injury. It was habitual for the individual to move with tensely flexed legs. This may have been related to labor activity or may have been the result of pathology. The characteristic structure of the sternum suggests that the individual was engaged in heavy lifting using a strap across the chest. The arms were slightly bent at the forearms to hold the weight. The hands were tensely flexed at the same time. The study of the skeleton from burial № 7 will let know the lot about the life of the medieval Mordvins and the level of medicine of that time

Time-resolved photoelectron spectroscopy of organic molecules in aqueous solutions

We use time-resolved photoelectron spectroscopy with wavelength-selected XUV femtosecond pulses to study photoinduced dynamics of organic molecules in solutions at millimolar concentrations. Upon electronic excitation we observe relaxation processes, such as excited state intramolecular proton transfer and trans-cis isomerization

Time-resolved photoelectron spectroscopy of organic molecules in aqueous solutions

We use time-resolved photoelectron spectroscopy with wavelength-selected XUV femtosecond pulses to study photoinduced dynamics of organic molecules in solutions at millimolar concentrations. Upon electronic excitation we observe relaxation processes, such as excited state intramolecular proton transfer and trans-cis isomerization

Applying Ant Colony Optimisation When Choosing an Individual Learning Trajectory

The effectiveness of learning depends in many ways on the organization of the educational process. These days, the educational environment is becoming more flexible and responsive to the needs of students. The traditional form of learning is expanding through the use of new approaches and teaching methods, learning systems, and information technology. Individual learning trajectory allows the learner to regulate the order of studying course modules and the pace of mastering the subject material. Decision-making in choosing the learning trajectory can be supported by specialized methods and tools. This paper proposes the use of ant colony optimisation to support decision making on the choice of an individual learning trajectory. #CSOC1120

Asymmetric PTC C-alkylation catalyzed by chiral derivatives of tartaric acid and aminophenols. Synthesis of (R)- and (S)-alpha-methyl amino acids

A new type of efficient chiral catalyst has been elaborated for asymmetric C-alkylation of CH acids under PTC conditions. Sodium alkoxides formed from chiral derivatives of tartaric acid and aminophenols (TADDOL's 2a-e and NOBLN's 3a-h) can be used as chiral catalysts in the enantioselective alkylation, as exemplified by the reaction of Schiff's bases Pa-e derived from alanine esters and benzaldehydes with active alkyl halides. Acid-catalyzed hydrolysis of the products formed in the reaction afforded (R)-alpha -methylphenylalanine, (R)-alpha -naphthylmethylalanine, and (R)alpha -allylalanine in 61-93% yields and with ee 69-93%. The procedure could be successfully scaled up to 6 g of substrate 1b. When (S,S)-TADDOL or (R)-NOBIN are used, the (S)-amino acids are formed. A mechanism rationalizing the observed features of the reaction has been suggested