scholarly journals FUNCTIONAL CHARACTERISTIC STATE OF VEGETATIVE SYSTEMS IN STUDENTS WITH DIFFERENT LEARNING FORM

Author(s):  
Mirzo Ustoev ◽  
Behzod Ustoev
Author(s):  
Ichie Ojiro ◽  
Hiromi Nishio ◽  
Toyomi Yamazaki-Ito ◽  
Shogo Nakano ◽  
Sohei Ito ◽  
...  

Abstract Many functional food ingredients activate human bitter taste receptors (hTAS2Rs). In this study, A novel inhibitor, Trp-Trp, for hTAS2R14 was identified by searching for the agonist peptide's analogs. Trp-Trp also inhibited hTAS2R16, hTAS2R43, and hTAS2R46, which share the same agonists with hTAS2R14. The multi-functional characteristic of Trp-Trp is advantageous for use as bitterness-masking agents in functional foods.


Author(s):  
Alexenko T. ◽  
Shevchenko I.

For the first time, systematic studies of the structural and functional properties of macrozoobenthos of Lake Zakіtne were conducted. A taxonomic list of macroinvertebrates with their zoogeographical characteristics is given. According to the results of research, 3 types of benthic invertebrate groups were identified and described, of which Oligochaeta-Chironomidae type were the most widespread. Only two species were common to all found groups: Einfeldia longipes and Glyptotendipes glaucus of Chiromonidae family. The calculated biotic indices indicate a fairly high degree of use of existing biotopes by macroinvertebrates, as well as the predominance of species characteristic of the α-β-mesosaprobic zone.The variety of ways and mechanisms of feeding of benthic invertebrates is shown. Collectors, scraper collectors, sedimentators, filter feeders, shredders, predators, as well as macroinvertebrates with an indeterminate feeding type were identified in the trophic structure by the predominant type of feeding. The number of species, as well as their representation in trophic groups, varied in different years, yet 54-73% of them were nonpredatory forms.According to the obtained data, the components of the energy balance for macroinvertebrates were calculated. The active participation in the production of organic matter of Chironomidae larvae (from 29 to 62% of the total production of nonpredatory and predatory forms) is indicated. In some years, Ephemeroptera and Mollusca were actively involved in production. The largest flow of energy passed through insects (Ephemeroptera, Trichoptera) and leeches. Attention is drawn to the role of predators, which can significantly reduce the production of groups. High production and food ration of predators do not allow to ignore them when calculating the production of the entire zoocenosis.In average, during the vegetation season, the total production of nonpredatory and predatory benthic invertebrates was 77,89 kJ/m2, and the predator's food ration was 61,80 kJ/m2.Key words:macroinvertebrates, taxonomic structure, trophic structure, community, production, food ration, energy balance. Вперше проведено систематичні дослідження структурно-функціональних властивостей макрозообентосу озера Закітне. Наведено таксономічний список макробезхребетних з їх зоогеографічною характеристикою. За результатами досліджень виявлено та описано 3 типи угруповань донних безхребетних, з яких найбільшепоширення отримали олігохетно-хірономідні комплекси. Лише двавиди виявилися спільними для всіх знайдених угруповань: Einfeldia longipes і Glyptotendipes glaucus (родина Chironomidae).Розраховані біотичні індекси свідчать про достатньо високий ступень використання існуючих біотопів макробезхребетними, а також про переважання видів, що характерні для α-β-мезосапробної зони.Показанарізноманітність способів і механізмів живлення донних безхребетних. У трофічній структурі угруповань за переважаючим способомживлення було виділено збирачів, збирачів-шкребачів, седиментаторів, фільтраторів, подрібнювачів, хижаків, а також макробезхребетних із невизначеним типом живлення. Кількість видів, а також їх представленість утрофічних групах в різні роки була неоднакова, але на 54–73% це були мирні форми.За отриманими даними було розраховано складові енергетичного балансу за макробезхребетними. Вказано на активну участь упродукуванні органічної речовини личинок родини Chironomidae, яким належить від 29 до 62% від сумарної продукції мирних і хижих форм. В окремі роки в продукування активно включалися одноденки та молюски. Найбільший потік енергії проходив через комах (Ephemeroptera, Trichoptera) і п’явок. Звернуто увагу на роль хижаків, які можуть суттєво знижувати продукцію угруповань. Високапродукція і раціон хижаків не дозволяють нехтувати ними при розрахунку продукції всього ценозу.Підраховано, що в середньому за вегетаційний період сумарна продукція мирних і хижих донних безхребетних дорівнювала 77,89 кДж/м2, а раціон хижаків складав 61,80 кДж/м2.Ключові слова: макробезхребетні, таксономічна структура, трофічна структура, угруповання, продукція, раціон, енергетичний баланс.


TEM Journal ◽  
2020 ◽  
pp. 1571-1579
Author(s):  
Ruslan Mudrak ◽  
Volodymyr Lagodiienko ◽  
Nataliia Lagodiienko ◽  
Vitalii Rybchak

The conducted correlation-andregression analysis revealed a close inverse connection between the functional characteristic "share of the expenditures for food and non-alcoholic beverages in the structure of the total expenditures of the households" and the factorial characteristic "GDP per capita by purchasing power parity, at constant prices". The response of the share of food expenditures in the structure of the total expenditures of the households to per capita GDP growth corresponds to the law of diminishing returns. The pattern is manifested in the long-term period.


2021 ◽  
Author(s):  
Silvia Perez-Yanes ◽  
Maria Pernas ◽  
Silvia Marfil ◽  
Romina Cabrera-Rodríguez ◽  
Raquel Ortiz ◽  
...  

The understanding of HIV-1 pathogenesis and clinical progression is incomplete because of the variable contribution of host, immune and viral factors. The involvement of viral factors has been investigated in extreme clinical phenotypes from rapid progressors to long-term non-progressors (LTNPs). Among HIV-1 proteins, the envelope glycoprotein complex (Env) has concentrated many studies for its important role in the immune response and in the first steps of viral replication. In this study, we analyzed the contribution of 41 Envs from 24 patients with different clinical progression rates and viral loads (VLs), LTNP-Elite Controllers (LTNP-ECs); Viremic LTNPs (vLTNPs), and non-controller’s individuals contemporary to LTNPs or recent, named Old and Modern progressors. We analyzed the Env expression, the fusion and cell-to-cell transfer capacities as well as viral infectivity. The sequence and phylogenetic analysis of Envs were also performed. In every functional characteristic, the Envs from subjects with viral control (LTNP-ECs and vLTNPs) showed significant lower performance compared to those from the progressor individuals (Old and Modern). Regarding sequence analysis, the variable loops of the gp120 subunit of the Env (i.e., V2, V4 and mainly V5) of the progressor individuals showed longer and more glycosylated sequences than controller subjects. Therefore, HIV-1 Envs presenting poor viral functions and shorter sequences were associated with viremic control and the non-progressor clinical phenotype, whereas functional Envs were associated with the lack of virological control and progressor clinical phenotypes. These correlations support the central role of Env genotypic and phenotypic characteristics in the in vivo HIV-1 infection and pathogenesis.


2020 ◽  
Vol 174 ◽  
pp. 01029
Author(s):  
Danil Zorkov ◽  
Alexey Renev ◽  
Konstantin Filimonov ◽  
Rinat Zainulin

Submitted by generalized experience entry longwall into pre- driven recovery room (PDRR) in foreign and Russian mine.Submitted by research characteristic state parameters of the roof at failed entry. Give a classification of roof collapse at the entrance longwall into PDRR.On the example of longwall panel 5а-10-18 mine Raspadskaya reviewed formation process of stress-strain condition in area for PDRR. Has been modeled process of entry longwall into PDRR in the conditions of heavy roof. Determine the expected load on the anchor and standing support, installed in the PDRR. Assessed the load on the longwall shield. When calculating the loads was taken into account the following parameters: width pre-driven recovery room, number of standing support in the PDRR and especially its placement, the rate of entry longwall into PDRR.


2012 ◽  
Vol 182-183 ◽  
pp. 778-782
Author(s):  
Yun Bing Yang ◽  
Yong Gang Lu ◽  
Yan Zhou

Based on integration design method for semi-armor-piercing warhead, the design and implementation of CAD system are illuminated. The whole frame of CAD system is established. The function of integration design system is analyzed by IDEF0 method, and the functional modules are established. System software structure is founded based on system functional characteristic. Based on the technique of database and visualization, the key techniques of system implementation are analyzed in detail, which include database, visualization, etc. Finally, an application example of CAD system is given.


1986 ◽  
Vol 51 (6) ◽  
pp. 1405-1411 ◽  
Author(s):  
G. A. Frolov ◽  
A. A. Korol' ◽  
V. V. Pasichnyi ◽  
V. Ya. Berezhetskaya ◽  
E. I. Suzdal'tsev ◽  
...  

Author(s):  
Roberto Scazzieri

AbstractEconomic complexity highlights the relationship between interdependence (a positional characteristic of elements belonging to a given network or structure) and connectivity (a functional characteristic of elements belonging to a given field of interaction). Positional interdependence (as the one between pieces in a jigsaw puzzle) is central to studies investigating the architecture of a complex system (Simon) while connectivity is central to the analysis of responsiveness patterns in social networks and strategic action fields. This paper discusses the fundamentals of a structural approach to economic and spatial complexity by highlighting the hierarchical arrangement of network elements as a distinctive feature of system identity. The positional distribution of network elements is a fundamental characteristic of complex networks and a central condition constraining the dynamics of those networks through the principle of relative structural invariance. The paper investigates the role of this principle by connecting it with the aggregation criterion followed in assigning network elements to specific subsystems. The type of aggregation is essential in determining the resilience properties of the network with respect to specific dynamic impulses. The paper concludes highlighting the need to combine the investigation of positional interdependence with the analysis of connectivity since positional interdependence is fundamental in determining which patterns of connection are more likely to arise (and which ones are excluded), due to the role of alternative properties of relative invariance constraining the feasible transformations in the positions of network elements.


Botany ◽  
2013 ◽  
Vol 91 (2) ◽  
pp. 82-90 ◽  
Author(s):  
David R. Johnson ◽  
Laura Gough

Greater soil nutrients are thought to increase graminoid tolerance to herbivory (within-season regrowth following herbivore damage) by enabling new growth in response to defoliation, but these responses vary among graminoid species. We studied how two arctic graminoids, Eriophorum vaginatum (L.) in moist acidic tussock (MAT) tundra and Hierochloe alpina (Roem. & Schult.) in dry heath (DH) tundra, tolerate both experimental and natural herbivory when fertilized with nitrogen and phosphorus. Fertilization reduced the tolerance and recovery (regrowth in subsequent years) of defoliated Eriophorum relative to plants growing without fertilization. In contrast, fertilized Hierochloe plants regrew well following defoliation. These opposing results may be due to differential abilities of these two species to access other resources in MAT and DH when fertilized. Herbivory may be affecting access to light of Eriophorum in the more productive, closed canopy MAT, in spite of its ability to grow bigger when fertilized. Hierochloe may not face such a limitation in the more open DH community. Alternatively, the different responses between these two species could be caused by environmental differences between the two communities. Regardless, our results suggest that although high tolerance is thought to be a functional characteristic of graminoids, tolerance to herbivory varies within and between species with soil nutrient availability and thus caution must be exercised in predicting responses to herbivory within this plant growth form.


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