FLOW BIOREACTOR FOR STUDYING BACTERIAL-CHEMICAL LEACHING OF SULFIDE COPPER-NICKEL ORES AND CONCENTRATES

Bacterial and chemical leaching of metals has established itself as an alternative technology for hydrometallurgical processing and enrichment of ore due to a reduction in capital costs and adverse environmental impact. Various bioleaching processes are successfully used for the processing of sulfide concentrates, poor sulfide and oxidized ores. One of the most important tasks for further development of this branch of biotechnology is the improvement of bioreactor installations (in particular – flow type) and installation of systems of additional control of technological parameters. The article briefly highlights the main results obtained at the GSRC of FEB of RAS within the framework of bioleaching studies of sulfide cobalt-copper-nickel ore. A description of a bioreactor for the study of bioleaching in a batch mode and a cascade type reactor for studying bioleaching in a continuous mode is given. A model of an improved bioreactor for bacterial-chemical leaching of sulfide ore is presented. A detailed description of the microcontroller control method for technological parameters is given. The field of application of the presented results is laboratory, integrated and semi-industrial tests of the technology of tank and reactor bacterial-chemical leaching of sulfide ores

Morphometric characteristics of common carotid arteries bifurcation in men with different shape of the neck

Introduction: In the last decade, the anatomical structure of the bifurcation of common carotid arteries has attracted particular attention of anatomists and clinicians. Objective: To identify the morphometric characteristics of the bifurcation of common carotid arteries in men with different forms of the neck. Techniques: 90 male cadavers (36-60 years) were studied. The lengths of the neck, its frontal and sagittal dimensions of its base were measured. Classification of forms of the neck by A. Sozonov-Yaroshevich: long and narrow neck, index < 67,2; neck of average length and average diameter, index = 67,3-79,5; short and wide neck, index > 79,6. Morphometry was performed at bifurcation of the common carotid artery (CCA) on the right and left (length, diameter, angle of bifurcation, the lateral angles with the external (ECA) and internal (ICA) carotid arteries). Results: Cadaveric material was distributed into 3 groups: men with long, narrow neck, n = 27, men with a neck of medium length and average diameter, n = 38; men with short and wide neck, n = 25. The length of the bifurcation of the OCA in men with long, narrow neck was the highest in comparison with the other groups studied, and was right on average 23,2 ± 5,4 mm, and left to 21,4 ± 5,1 mm, while the diameter was the smallest - 9,3 ± 2,2 mm on the right and 9,2 ± 2,3 mm on the left. The angle of bifurcation of men in this group was also lower and averaged 6,6 ± 0,6 ° to the right and 7,2 ± 0,8 ° to the left. The average value of the right side corner of the NSA was 178 ± 1,2 °, on the left, it was 176 ± 0,7 °. The value of the lateral angle of the ICA was equal to an average of 174 ± 0,9 ° right and 175 ± 0,5 ° to the left. A group of people with short and wide neck, the average length of the bifurcation of the CCA was minimal, with both its greatest diameter. Its length is right on average 14,9 ± 5,3 mm, and left to 14,6 ± 5,0 mm. The diameters were equal to the values of 22,2 ± 6,4 mm and 23,5 ± 6,9 mm on the right and left, respectively. The apical angle in this group of men studied was 27,0 ± 0,9 ° to the right and 29,3 ± 0,8 ° to the left. Angle with the NSA was on average 167 ± 1,5 °, and the left - 164 ± 2,6 °. Side angle with the right internal carotid artery was 158 ± 2,4 °, the left was equal to the value of 160 ± 1,4 °. On the neck of average length and average diameter values of the parameters studied the bifurcation of the OCA, both right and left were located between the similar values of the two above groups. Length of the bifurcation of the right CCA average was equal to 18,5 ± 5,2 mm, and left to 19,8 ± 5,3 mm. The average value of the diameter of the bifurcation of the right CCA was 16,3 ± 3,9 mm and the left - 16,9 ± 4,9 mm. The angle of the branch on the right CCA was equal to 17,2 ± 0,6 °, left it was 19,6 ± 1,1 °. Side right angle with the NSA was equal to 176 ± 1,7 °, the left is the value was 170 ± 1,5 ° Side angle with the internal carotid artery was equal to 161 ± 0,9 ° right and 161 ± 1,9 ° to the left. Conclusions: Our studies have revealed clear differences of morphometric characteristics of the bifurcation of the OCA in men with different forms of the neck

Взаємодія слідчого з оперативними підрозділами під час проведення слідчих (розшукових) дій

Безсонна, Т. Ф. Взаємодія слідчого з оперативними підрозділами під час проведення слідчих (розшукових) дій / Т. Ф. Безсонна, С. А. Левенець // Теорія і практика судової експертизи і криміналістики : зб. матеріалів ІІ-ої наук.-практ. конф. (м. Київ, м. Маріуполь, 27 лютого 2019 року) / Приватний вищий навчальний заклад «Європейський університет», Донецький державний університет управління, Громадська організація «Фундація науковців та освітян» (ESF). - Київ-Маріуполь, 2019. - С. 26-28.Розкрито сутність взаємодії слідчого з оперативними підрозділами під час проведення слідчих (розшукових) дій.Interaction of the investigator with the operational units during the conduct of investigative (search) actions.Рассмотрено заимодействие следователя с оперативными подразделениями во время проведения следственных (розыскных) действий

Land Snail Sphyradium Doliolum (Stylommatophora, Orculidae) In Ukraine And Moldova: Distribution, Habitats, Variability And Origin

Balashov, I., Levenets, T., Markova, A., Kramarenko, A., Kramarenko, S. (2023): Land Snail Sphyradium Doliolum (Stylommatophora, Orculidae) In Ukraine And Moldova: Distribution, Habitats, Variability And Origin. Zoodiversity 57 (1): 29-40, DOI: 10.15407/zoo2023.01.029, URL: http://dx.doi.org/10.15407/zoo2023.01.02

Індекс вільних андрогенів у дівчаток-підлітків із вторинною аменореєю

In the study group of 92 girls aged 13 to 17 years with secondary amenorrhea (SA), and the control group of 54 age-matched girls with regular menstrual cycle, the levels of testosterone and sex hormone-binding globulin (SHBG) have been estimated; free androgen index (FAI) has been calculated. Not only normal or increased FAI values, but also low FAI levels have been found. The FAI value was connected to the intensity of hirsutism syndrome, the duration of amenorrhea, the values of the body weight index and the menarche date.У 92 девочек 13-17 лет с вторичной аменореей и 54 девочек того же возраста с регулярным менструальным циклом определены уровни тестостерона, сексстероидсвязывающего глобулина (ССГ), рассчитан индекс свободных андрогенов. Показано, что у девочек-подростков с вторичной аменореей обнаруживается не только нормальный и повышенный, но и сниженный индекс свободных андрогенов. Величина индекса свободных андрогенов связана с выраженностью гирсутного синдрома, длительностью аменореи, показателями индекса массы тела и временем появления первой менструации.У 92 дівчаток 13-17 років із вторинною аменореєю і 54 дівчаток того ж віку з регулярним менструальним циклом визначені рівні тестостерону, сексстероїдзв’язуючого глобуліну (ССГ), розрахований індекс вільних андрогенів. Показано, що в дівчаток-підлітків із вторинною аменореєю виявляється не тільки нормальний і підвищений, але і знижений індекс вільних андрогенів. Величина індексу вільних андрогенів пов'язана з вираженістю гірсутного синдрому, тривалістю аменореї, показниками індексу маси тіла і часом появи першої менструації

FLOW BIOREACTOR FOR STUDYING BACTERIAL-CHEMICAL LEACHING OF SULFIDE COPPER-NICKEL ORES AND CONCENTRATES

Bacterial and chemical leaching of metals has established itself as an alternative technology for hydrometallurgical processing and enrichment of ore due to a reduction in capital costs and adverse environmental impact. Various bioleaching processes are successfully used for the processing of sulfide concentrates, poor sulfide and oxidized ores. One of the most important tasks for further development of this branch of biotechnology is the improvement of bioreactor installations (in particular – flow type) and installation of systems of additional control of technological parameters. The article briefly highlights the main results obtained at the GSRC of FEB of RAS within the framework of bioleaching studies of sulfide cobalt-copper-nickel ore. A description of a bioreactor for the study of bioleaching in a batch mode and a cascade type reactor for studying bioleaching in a continuous mode is given. A model of an improved bioreactor for bacterial-chemical leaching of sulfide ore is presented. A detailed description of the microcontroller control method for technological parameters is given. The field of application of the presented results is laboratory, integrated and semi-industrial tests of the technology of tank and reactor bacterial-chemical leaching of sulfide ores

Fig. 2 in Land Snail Sphyradium Doliolum (Stylommatophora, Orculidae) In Ukraine And Moldova: Distribution, Habitats, Variability And Origin

Fig. 2. Centroid ordination of the shells' series from the populations of S. doliolum in Ukraine and Moldova in the space of the first three principal components: А — for РС 1 and РС2; В — for РС2 and РС3.Published as part of &lt;i&gt;Balashov, I., Levenets, T., Markova, A., Kramarenko, A. &amp; Kramarenko, S., 2023, Land Snail Sphyradium Doliolum (Stylommatophora, Orculidae) In Ukraine And Moldova: Distribution, Habitats, Variability And Origin, pp. 29-40 in Zoodiversity 57 (1)&lt;/i&gt; on page 37, DOI: 10.15407/zoo2023.01.029, &lt;a href="http://zenodo.org/record/7841268"&gt;http://zenodo.org/record/7841268&lt;/a&gt

Fig. 1 in Land Snail Sphyradium Doliolum (Stylommatophora, Orculidae) In Ukraine And Moldova: Distribution, Habitats, Variability And Origin

Fig. 1. Sphyradium doliolum: A — distribution in Ukraine and Moldova (map by A. Markova); B — shells (adult and juvenile) from the Kaniv Nature Reserve (photo by K. Martynova and I. Balashov).Published as part of &lt;i&gt;Balashov, I., Levenets, T., Markova, A., Kramarenko, A. &amp; Kramarenko, S., 2023, Land Snail Sphyradium Doliolum (Stylommatophora, Orculidae) In Ukraine And Moldova: Distribution, Habitats, Variability And Origin, pp. 29-40 in Zoodiversity 57 (1)&lt;/i&gt; on page 34, DOI: 10.15407/zoo2023.01.029, &lt;a href="http://zenodo.org/record/7841268"&gt;http://zenodo.org/record/7841268&lt;/a&gt

Fig. 3 in Land Snail Sphyradium Doliolum (Stylommatophora, Orculidae) In Ukraine And Moldova: Distribution, Habitats, Variability And Origin

Fig. 3. Ordination of all measured S. doliolum specimens from Ukraine and Moldova in the space of the first two canonical axes.Published as part of &lt;i&gt;Balashov, I., Levenets, T., Markova, A., Kramarenko, A. &amp; Kramarenko, S., 2023, Land Snail Sphyradium Doliolum (Stylommatophora, Orculidae) In Ukraine And Moldova: Distribution, Habitats, Variability And Origin, pp. 29-40 in Zoodiversity 57 (1)&lt;/i&gt; on page 37, DOI: 10.15407/zoo2023.01.029, &lt;a href="http://zenodo.org/record/7841268"&gt;http://zenodo.org/record/7841268&lt;/a&gt