Assessment of Phytomass and Carbon Stock in the Ecosystems of the Central Forest Steppe of the East European Plain: Integrated Approach of Terrestrial Environmental Monitoring and Remote Sensing with Unmanned Aerial Vehicles.

The rapid and accurate estimation of aboveground forest phytomass remains a challenging research task. In general, methods for estimating phytomass fall mainly into the category of field measurements performed by ground-based methods, but approaches based on remote sensing and ecological modelling have been increasingly applied. The aim is to develop the scientific and methodological framework for the remote sensing estimation of qualitative and quantitative characteristics of forest stands, using the combination of surveys and machine learning models to determine phytomass of forest stands and calculate the carbon balance.

[Various methods to assay carbenicillin activity against Pseudomonas aeruginosa].

It was shown that the cultures of Pseudomonas aeruginosa were sensitive to 75-100 micrograms/ml and resistant to 25-50 micrograms/ml of carbenicillin when tested by the method of serial dilutions in the synthetic medium developed by the authors and in Jorgensen's medium. The cultures were incubated for 4 and 16 hours, respectively. The data did not confirm the resistance of the cultures to 25-75 and 100 micrograms/ml carbenicillin when it was determined with the serial dilution method in Pal's medium and the disk diffusion method, respectively.

[A method for determining the sensitivity of the causative agents of suppurative infection to iodopiron].

Bacterial suspensions of cultures (10(7) PFU) of pathogenic Staphylococcus, vulgar Proteus and pyocyanic bacterium are resistant to 2.9-46.87 mg per disc of iodopyron in 100% of cases.

[Sensitivity of Pseudomonas bacteria to iodopiron and dimexide determined by electron microscopy].

A structure of the pyocyanic bacterium culture was studied by the method of electron microscopy of native preparations and ultrafine sections of the cells, which contained in the quantity of 10(5)/ml of suspension, and were treated with iodopiron in the concentration of 93.75 mg/ml, 10% dimexide solution and their combination. The increase in damaging effect on bacteria of the combined use of chemopreparations permits to recommend their complex administration in local pyocyanic infection in burned patients.

[Structural elements of Pseudomonas aeruginosa based on electron microscopy findings].

The study of negatively contrasted preparations was made with the aim of of finding out the possibility of identifying Ps. aeruginosa by the number and location of flagella. 4,800 bacteria were studied by means of an electron microscopy, type JEM-100; of these, 2,443 bacterium had a single polar flagellum, 414 bacteria had 2 and 138 bacteria had 3 polar flagella, while 1,805 cells had no flagella.

[Morphologic, cultural, and biochemical properties of cultures of Pseudomonas aeruginosa isolated from patients, animals, and the environment].

The properties of 279 Ps. aeruginosa strains were studied in 70 tests. The use of a synthetic peptone-free mineral medium for the determination of sugar oxidation was shown to have advantages over the use of liquid Giess' media.

[Ultrastructural changes in the cells of a nonsynchronous Pseudomonas aeruginosa culture occurring under the influence of chlorhexidine bigluconate].

Total preparations of P. aeruginosa (strain 65) were studied after contrastive treatment with 2% phosphato-tungstic acid and 2% uranyl acetate; ultrathin sections of bacteria treated with chlorhexidine bigluconate in various concentrations and fixied by the method of Hoffmann et al. were also studied with the use of an electron microscope IEM 100 v.