Direct Homogeneous Synthesis of Compounds with Two O Atoms and Long-Chain Hydrocarbons from CO and H: Co-Ru/N-methylpyrrolidone Catalyst.

The homogeneous acetic acid synthesis-type Ru-Co-Li/N-methylpyrrolidone catalyst for CO and H transformations has been studied at moderately high pressures. For 1CO:2H, low acetic acid selectivity has been observed, along with remarkable methyl acetate selectivity, the absence of aldehydes and ethyl acetate and sharp deviations from the Anderson-Schultz-Flory distribution for both alcaohols and long-chain hydrocarbons. For 1CO:1H and slightly elevated pressure, acetic acid selectivity slightly increased, notable ethyl acetate formation was detected, and both long-chain hydrocarbons and alcohols disappeared.

[Study of lutein and zeaxanthin content in the diet with the assessment of the relationship between the level of alimentary intake of non-vitamin carotenoids and the density of the macular region of the retina at a young age].

Lutein and zeaxanthin are carotenoid pigments that affect the function of the visual analyzer. They selectively accumulate in the yellow spot of the retina, form macular pigment and determine the density of the retina macula. Lutein and zeaxanthin slow down the progression of age-related macular degeneration, a leading cause of senior-age blindness.

Analysis of the Efficiency of Microencapsulated Sustained-Release Form of Naloxone on the Experimental Model of Fentanyl Poisoning.

We compared samples of microencapsulated naloxone prepared by using spray drying technique. 2-Hydroxypropyl-β-cyclodextrin, sodium alginate, polycaprolactone, and carboxymethyl cellulose were used as the carriers. It was found that the combination of naloxone with sodium alginate was characterized by the highest naloxone content in the matrix and the lowest release rate (100% release time was 60 min).

[The mechanical properties of the bone tissue from the middle facial region].

The objective of the present work was to study age-related features of the reaction of the maxillary sinus cavity walls to a variety of impacts associated with the surgical interventions. To this effect, a variety of stress-strain conditions were simulated that are known to arise in the maxillary sinus cavity walls under the action of different force vectors taking into consideration the age-specific peculiarities of the mechanical structure of the bone tissue. The 3D model of the maxillary sinus cavity was built up based on the results of spiral computed tomography with the use of the Solid Works 2012 software package (USA).