113,332 research outputs found
Contracting minors in the sphere of music show business: world experience and Ukrainian challenges
No full textMoskalenko K. V. Contracting minors in the sphere of music show business: world experience and Ukrainian challenges / K. V. Moskalenko // Актуальні проблеми держави і права : зб. наук. пр. / редкол.: С. В. Ківалов (голов. ред.), В. М. Дрьомін (заст. голов. ред.) Ю. П. Аленін [та ін.] ; МОН України; НУ ОЮА. – Одеса : Юрид. л-ра, 2014. – Вип. 73. – С. 321-327.The article provides general analysis of the legal status of minors engaged in the music show business industry. The author investigates international and national legal framework concerning protection of minor performers and suggests entering amendments into the Law of Ukraine “On сopyright and related rights”
Moskalenko Ekaterina Petrovna: teacher, scientist, organizer and public figure. to the 90th birthday
No full textMoskalenko Ekaterina Petrovna: teacher, scientist, organizer and public figure. to the 90th birthday
Excitation of erbium ions in SiO2 with Si nanocrystals via virtual Auger process
No full textHere we propose a possible mechanism of fast Er3+ ions excitation in SiO2 matrix with Si nanocrystals. We show that the presence of Si nanocrystals allows for non-resonant optical pumping of erbium ions by virtual Auger transition, which is the second order process via an intermediate virtual state: the first step is the optical transition inside the Si NC, and the second one is Auger excitation of Er3+ ion accompanied by intraband transition of the confined carrier. This mechanism of excitation can take place when the energy of photon absorbed is larger than the sum of the confined electron-hole ground state energy and the excitation energy of Er3+ ion. We have calculated the excitation cross-section as a function of the excitation energy for erbium ions situated both inside and outside the NC. We show that virtually all Er3+ ions inside NCs can be excited directly into the first excited state 4I13/2 (responsible for the 1.5 μm emission) by the laser pulse of duration 5-10 ns. The results obtained for ions located outside NCs demonstrate the efficiency of the virtual excitation Auger process for transition of erbium ions into the higher excited states. 1.5 μm PL appears in this case as a result of nonradiative relaxation of excited ions down to the 4I13/2 state. Correspondingly, the rise time of the 1.5 μm PL should be about several microseconds. The cross-sections calculated demonstrate the efficiency of such Auger process.
Moskalenko,1
No full textWe use recent data obtained by three (OSSE, BATSE, and COMPTEL) of four instruments on board the Compton Gamma Ray Observatory (CGRO) to construct a model of Cyg X-1 that describes its emission in a broad energy range, from soft X-rays to MeV c-rays, self-consistently. The c-ray emission is interpreted to be the result of Comptonization, bremsstrahlung, and positron annihilation in a hot, optically thin, and spatially extended region surrounding the whole accretion disk. For the X-ray emission, a standard corona-disk model is applied. We show that the Cyg X-1 spectrum accumulated by the CGRO instruments during a D4 year time period between 1991 and 1995, as well as the HEAO 3 and c 1 c 2 spectra, can be well represented by our model. The derived parameters match the observational results obtained from X-ray measurements. Subject headings : elementary particles È gamma rays : theory È plasmas È radiation mechanisms : nonthermal È scattering È stars : individual (Cyg X-1) 1. INTRO..
Eulimnogammarus tchernykhi Moskalenko & Neretina & Yampolsky 2020, sp. nov.
No full textEulimnogammarus tchernykhi sp. nov. (Fig. 1B, Fig. 3) Holotype: female, body length 8 mm, Baikal, Bolshoy Ushkanii Island, Pescherka bay, 53.852N, 108.660E, depth 15–20 m, dredge on sandy substrate with pebbles, August 2013. 2 paratypes (1 male, 1 female), same location and date. Holotype location: Zoological Museum, Moscow State University, Moscow, Russia. Paratypes: Department of Biological sciences, East Tennessee State Universiry, Johnson City, TN, USA and Baikal Museum, Listvyanka, Russia. See Supplementary materials for holotype museum ID. Etymology: The species is named after Valery Chernykh who participated in the collection of the holotypes. Diagnosis: This species can be distinguished from other Eulimnogammarus spp. by 1- or 2-articulate accessory flagellum, lack of calceoli, a single pair of spines only on the last 2 segments of urosome and dense setation of outer ramus and strong spines on peduncle of uropod III. Description: Description is based on female holotype and two male paratypes. No sexual dimorphism noted other than the presence of brood chamber in females. Body compact, smooth, 6-10 mm, red when alive, with crosshatching on the head segment. Two strong spines on the last two segments of the urosome, bundles of setae on the last segment of pleosome and all segment of urosome, individual setae on the 2 nd segment of pleosome. Eyes kidney-shaped, black. Rostrum very short, rounded, antennal sinus deeply cut (Fig. 1B). Antennae I short (1/3 body length) with the first peduncle article about 1/2 as long as the head segment and the length ratio of peduncle segments 1:0.8:0.6, carrying a few setae on the distal end of each peduncle segment. Flagellum consists of 12–15 articles (Fig. 3A). Accessory flagellum 1-articulate (in holotype female and several paratype males, sometimes 2-articulate (in two paratype males), in this case the second article is very short, 1/10 of the length of the terminal setae of the 1 st article. Antennae II ¾ as long as antennae I, peduncle and flagellum segments with groups of long setae on ventral side, flagellum consists of 6 articles. No calceoli found (Fig. 3B). Mouthparts typical for subgenus Philolimnogammarus (sensu Bazikalova 1945). Basal article of mandible palpus without setae, terminal article slightly shorter than the subterminal one; the comb consists of two rows of spines and is much shorter than the apical setae (Fig. 3C). Outer plate of maxillae I carries hooks with 6-7 short dense teeth, inner plate triangle with dense pennate setae (Fig. 3D). Maxillae II (Fig. 3E) and maxillipedae (Fig. 3F) as in any Eulimnogammarus spp. Gnathopods I with very strong and powerful almond-shaped propodus with 4–5 strong spines on posterior margin and a large blunt spine at the middle of the palmate margin and with with a group of long setae at the base of the dactylus (Fig. 3G). Gnathopods II with much weaker, heavily setose subrectangular elongated propodus with 4 transverse rows of long setae on the posterior edge (Fig. 3H). Pereopods short, with strong spines and few setae, coxal plates short, rounded, with very short setae on the posterior edge. Basipodite of pereopod VII with a triangle lobe tempering distally into a very short triangle protrusion not reaching the distal end of the basipodite (Fig. 3I). Posterior edge with 5-6 setae one of which, near the distant end, longer than others. Anterior margin with 3 spines, the one on distal-anterior corner of the basipodite stronger and longer than others. Pleopods of typical gammarid morphology, with 2 small (50 microns) retinacles on the basal article, with convex side smooth and 4–5 hooks on the concave side. Uropodes I and II with spines. Uropod III short, carrying numerous simple setae in bundles and strong spines on both sides of the outer ramus, which is twice as long as the peduncle. Peduncle with 1 weak and 3 strong spines, that reach beyond the tip of the inner ramus, which is short, triangle, ¼ as long as the outer ramus and caries only 4 long terminal setae. (Fig. 3J). Telson cleft to the base, carries 1 spine and 5 long setae on each branch (Fig. 3K). Remarks: Molecular phylogeny places this species within the paraphyletic genus Eulimnogammarus, (Fig. 4 below). Uropod III structure similar to that of E. viridiformes, E. lividus and E. cyanoides, but differs from these species by smaller body size, red coloration, much shorter antennae and lack of calceoli, and only one pair of spines only on the last 2 segments of urosome. Differs from E. obsoletus, E. exiguus and E. viridulus by the lack of distally protruding distant-posterior corner of posterior lobe on basipodite of pereopod VII and much denser setation of outer ramus of uropod III; from E. exiguus, to which it is probably closely related, also by much denser setation of antenna II, shorter inner ramus of uropod III and by presence of strong spines on peduncle of uropod III and on telson. Differs from all other Eulimnogammarus spp. except the previous species by having a 1-articulate accessory flagellum in at least some adults. This species is different from the previous one by very strong gnathopods, inner branch of uropod III shorter than 1/4 of the outer branch, dense setation on antennae II and uropod III and a nearly absent distal lobe on pereopod VII basipodite. The two species are remarkably similar in their red coloration when live, a typical homoplasy common among Baikal amphipods.Published as part of Moskalenko, Victoria N., Neretina, Tatiana V. & Yampolsky, Lev Y., 2020, To the origin of Lake Baikal endemic gammarid radiations, with description of two new Eulimnogammarus spp., pp. 457-471 in Zootaxa 4766 (3) on pages 465-466, DOI: 10.11646/zootaxa.4766.3.5, http://zenodo.org/record/376560
FIGURE 1 in To the origin of Lake Baikal endemic gammarid radiations, with description of two new Eulimnogammarus spp.
No full textFIGURE 1. Whole body outline of two newly described species. A: Eulimnogammarus etingovae sp. nov. B: Eulimnogammarus tchernykhi sp. nov. Bar = 1 mm.Published as part of Moskalenko, Victoria N., Neretina, Tatiana V. & Yampolsky, Lev Y., 2020, To the origin of Lake Baikal endemic gammarid radiations, with description of two new Eulimnogammarus spp., pp. 457-471 in Zootaxa 4766 (3) on page 463, DOI: 10.11646/zootaxa.4766.3.5, http://zenodo.org/record/376560
CIRCULAR DICHROISM OF LIGHT-HARVESTING COMPLEXES FROM PURPLE PHOTOSYNTHETIC BACTERIA
No full textThe CD spectra of a range of antenna complexes from several different species of purple photosynthetic bacteria were recorded in the wavelength range of 190 to 930 nm. Analysis of the far UV CD (190 to 250 nm) showed that in each case except for the B800-850 from Chr. vinosum the secondary structure of the light-harvesting complexes contains a large amount of α-helix (50%) and very little 0-pleated sheet. This confirms the predictions of the group of Zuber of a high a-helical content based upon consideration of the primary structures of several antenna apoproteins. The CD spectra from the carotenoids and the bacteriochlorophylls show considerable variations depending upon the type of antenna complex. The different amplitude ratios in the CD spectrum for the bacteriochlorophyll Qy, Qx and Soret bands indicate not only different degrees of exciton coupling, but also a strong and variable hyperchromism (Scherz and Parson, 1984a, b)
Eulimnogammarus etingovae Moskalenko & Neretina & Yampolsky 2020, sp. nov.
No full textEulimnogammarus etingovae sp. nov. (Fig. 1A, Fig. 2) Holotype: female, body length 11 mm. South Baikal, near Kultuk, 51.696N, 103.874E, depth 10–20 m, dredge on sandy substrate, August 2013. Numerous paratypes of both sexes, same location and date. Holotype location: Zoological Museum, Moscow State University, Moscow, Russia. Paratypes: ETSU museum of Natural History, Johnson City, TN, USA and Baikal Museum, Listvyanka, Russia. See Supplementary materials for holotype museum ID. Etymology. The species is named after Anna Etingova who participated in the collection of the holotypes. Diagnosis. The species can be distinguished from other Eulimnogammarus spp. by a 1-articulate accessory flagellum, sparse setation on rami of uropod III, lack of calceoli, lack of setae on uropods I and II and of plumose setae on uropod III and presence of spines only on the last two body segments. Description. Description is based on female holotype and two male paratypes. No sexual dimorphism noted other than the presence of brood chamber in females and slightly weaker gnathopods I in female. Body slender, smooth, 8–11 mm, red when alive, with yellow spots on the posterior half of the head segment. Small spines on the last two segments of the urosome, setae on the last segment of pleosome and the first segment of urosome. Eyes kidney-shaped, white with black spots (black in preserved material). Rostrum very short, rounded, antennal sinus shallow (Fig. 1A). Antennae I short (1/4 body length) with the first peduncle article about 2/3 as long as the head segment and the length ratio of peduncle segments 1:0.6:0.4, carrying small setae on the distal end of each segment of peduncle and main flagellum. Flagellum consists of 9-12 articles. Accessory flagellum 1-articulate, very short, often barely visible (Fig. 2A). Antennae II shorter than I, peduncle articles carrying rare single setae, flagellum consists of 6 articles carrying short setae. No calceoli found (Fig. 2B). Mouthparts typical for subgenus Eurybiogammarus (Bazikalova 1945). Basal article of mandible palpus with- out setae, terminal article slightly shorter than the subterminal one; the comb is much shorter than the apical setae (Fig. 2C). Outer plate of maxillae I carries hooks with up to 5 teeth, inner plate triangle with dense pennate setae (Fig. 2D). Maxillae II (Fig. 2E) and maxillipedae (Fig. 2F) as in any Eulimnogammarus spp. Gnathopods I with weak, almond-shaped, weakly setose propodus with 8 pairs of spines on posterior margin (Fig. 2G), and with a group of weak setae at the base of the dactylus, somewhat more powerful in males. Gnathopods II with even weaker, heavily setose subrectangular elongated propodus with oblique palmar edge and a group of spines at the palmar-posterior corner (Fig. 2H). Pereopods short, stalky, with short spines and few setae, coxal plates short, rounded, with short setae on the posterior edge. Basipodite of pereopode VII with a large, round lobe extending distally in a rounded protrusion that reaches to the distal end of the next segment (Fig. 2I). Posterior edge serrated, with a weak seta under each notch. Uropods I and II with spines. Pleopods of typical gammarid morphology, with 2 small (50 microns) retinacles on the basal article, each equipped with 4-5 bumps on the convex side and 1-2 hooks on the concave side. Uropod III elongated, nearly bare, peduncle with 2 groups of 3-4 spines, outer ramus 2-2.5 times longer than the peduncle, 2-articulate, with 3 short spine and 1-3 weak simple setae on the outer margin, no spines or setae on the inner margin, 4-5 spines and a few setae at the distal end, spines reaching to ½ of the length of the triangle 2 nd article (Fig. 2J). Inner ramus narrow, about 2/3 as long as the outer ramus, narrow and slightly curved, completely bare, except for 1 spine and 2-3 setae at the distal end. Telson cleft to the base with 1-3 short spines at the tip of branches (Fig. 2K). Remarks: this species shares morphological affinities with both Echiuropus (1-articulate accessory flagellum, sparse to no setation on rami of uropod III) and Eulimnogammarus (2-articulate outer ramus of uropod III). It is similar to Eulimnogammarus aheneus and Eulimnogammarus similis, but it has neither calceoli, nor setae on uropods I and II nor plumose setae on uropod III. Similar to E. hyacynthus, but is smaller, red rather than blue and has spines only on the last two body segments. Differs from all other Eulimnogammarus spp. except the next species by having a 1-articulate accessory flagellum and by the structure of uropod III. Molecular phylogeny places this species basally within the paraphyletic genus Eulimnogammarus, with possible affinities to either the genus Macropereiopus which clusters within Eulimnogammarus (Naumenko et al. 2017; Fig. 5 below), or to the Echiuropus which is basal to Baikal clade 2 (Naumenko et al. 2017; Supplementary Fig. 1), depending on the nucleotide vs. amino acid sequences of the protein coding genes analyzed. This species is different from the next one by weak gnathopods, inner branch of uropod III longer than 2/3 of the outer branch, no setation on antennae II, uropod III and telson and a more protruding distal lobe on pereopod VII basipodite.Published as part of Moskalenko, Victoria N., Neretina, Tatiana V. & Yampolsky, Lev Y., 2020, To the origin of Lake Baikal endemic gammarid radiations, with description of two new Eulimnogammarus spp., pp. 457-471 in Zootaxa 4766 (3) on pages 462-465, DOI: 10.11646/zootaxa.4766.3.5, http://zenodo.org/record/376560
Spatial Patterns of Bird Communities of the Lower Dnieper Sands During the Breeding Season: Differentiation Factors
No full textFig. 3. The abundance (the mean number of individuals per sample) of campophilous and dendrophilous birds in groups of samples A (Clusters I–IV) and B (Clusters V–VI). N o t e. The central line represents median, the lower and upper limits of the rectangle — the first and third quartile respectively, "whiskers" — ± 1.5 of interquartile range; circles — outliers.Published as part of Moskalenko, Yu. O, 2014, Spatial Patterns Of Bird Communities Of The Lower Dnieper Sands During The Breeding Season: Differentiation Factors, pp. 539-546 in Vestnik Zoologii 48 (6) on page 543, DOI: 10.2478/vzoo-2014-0064, http://zenodo.org/record/645341
EVALUATION OF PERINATAL RIKS FACTORS OF RH-SENSIBILIZATION
No full textMaricherada V. G., Chernievskaya S. G., Moskalenko T. Ya. EVALUATION OF PERINATAL RIKS FACTORS OF RH-SENSIBILIZATION. ВІСНИК МОРСЬКОЇ МЕДИЦИНИ. 2018;3(80):70-80. ISSN 0049-6804.
DOI http://dx.doi.org/10.5281/zenodo.1450835
http://www.herald.com.ua
УДК 618.3-097-06
EVALUATION OF PERINATAL RIKS FACTORS OF RH-SENSIBILIZATION
Maricherada V. G., Chernievskaya S. G., Moskalenko T. Ya.
Odessa National Medical University,
e-mail: [email protected].
Summary
Implementation of anti -D prophylaxis significantly reduced the degree of allogenic immunization (AI), while this method of prevention is not universal. According to the data of different authors, about 0.3% of Rh (D) - negative women still become Rh (D) AI. The objective: to find significantly important factors of AI. Materials and methods. 82 pregnant women ere examined in the dynamics of gestation, 37 had Rh-S with different titers of antibodies, control group comprised 45 healthy women without rhesus sensitization. Сonclusions: The manifestation of Rh-conflict is directly dependent on parity of labors. The risk of Rh-conflict increases with each subsequent pregnancy. Women with Rh-negative blood constitute a high-risk group for miscarriage.
Key words: rhesus-sensitization, risk of miscsrridge, multivariate analysis
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