bluuebunny/crossref_metadata_2025 huggingface dataset:
Tad pilus-mediated twitching motility is essential for DNA uptake and survival of Liberibacters
Authors: Cai Lulu , Jain Mukesh , Sena-Vélez Marta , Jones Kathryn M. , Fleites Laura A. , Heck Michelle , Gabriel Dean W.
Published: October 2021

Axenically cultured Liberibacter crescens (Lcr) is a closely related surrogate for uncultured plant pathogenic species of the genus Liberibacter, including ‘Candidatus L. asiaticus’ (CLas) and ‘Ca. L. solanacearum’ (CLso). All Liberibacters encode a completely conserved gene repertoire for both flagella and Tad (Tight Adherence) pili and all are missing genes critical for nucleotide biosynthesis. Both flagellar swimming and Tad pilus-mediated twitching motility in Lcr were demonstrated for the first time. A role for Tad pili in the uptake of extracellular dsDNA for food in Liberibacters was suspected because both twitching and DNA uptake are impossible without repetitive pilus extension and retraction, and no genes encoding other pilus assemblages or mechanisms for DNA uptake were predicted to be even partially present in any of the 35 fully sequenced Liberibacter genomes. Insertional mutations of the Lcr Tad pilus genes cpaA, cpaB, cpaE, cpaF and tadC all displayed such severely reduced growth and viability that none could be complemented. A mutation affecting cpaF (motor ATPase) was further characterized and the strain displayed concomitant loss of twitching, viability and reduced periplasmic uptake of extracellular dsDNA. Mutations of comEC, encoding the inner membrane competence channel, had no effect on either motility or growth but completely abolished natural transformation in Lcr. The comEC mutation was restored by complementation using comEC from Lcr but not from CLas strain psy62 or CLso strain RS100, indicating that unlike Lcr, these pathogens were not naturally competent for transformation. This report provides the first evidence that the Liberibacter Tad pili are dynamic and essential for both motility and DNA uptake, thus extending their role beyond surface adherence.
Rare plant communities of lakes and river estuaries of the Arkhangelsk Region
Authors: Moseev Dmitry S. , Sergienko Ludmila A. , Leshchev Andrey V. , Bragin Albert V. , Romanov Roman E. , Churakova Elena Yu.
Published: October 2021

The problem of protecting rare communities in the vegetation cover still remains poorly studied. Currently, it is relevant for aquatic and coastal aquatic plant communities of lakes and river estuaries of the Arkhangelsk Region. Two critical criteria were used to distinguish rare communities: 1) protected species are cenosis-formers, 2) species that were first noted outside the northern border of the ranges are either cenosis-formers, or abundant in the composition of communities. The first criterion includes communities with species listed in the Red Data Books of the Russian Federation (2008) and the Arkhangelsk Region (), if these species are significant from the point of phytocenosis. The last includes taxa and plant populations of the Arkhangelsk Region that need special attention to their state in the natural environment and are recommended for bio-surveillance. The second criterion includes the communities of the Glycerietum fluitantis association located on the coast of the Pechora Inlet, which were described here for the first time.
The communities’ habitats are water bodies that differ significantly in hydrological conditions. Lobelietum dsortmannae, Isoëto lacustris–Lobelietum dortmannii, Isoëto echinosporae–Lobelietum dortmannae, Lobelieto dortmannae–Phragmitetum australis, Lobelieto dortmannae–Caricetum rostratae, Fontinalieto dalecarlicae–Phragmitetum australis, Fontinalieto dalecarlicae–Nupharetum lutea associations are typical for oligotrophic and oligo-mesotrophic lakes of the hydrocarbonate class with low water salinity. Nympheto candidae–Nupharetum pumilae, Potamogeneto natantis–Nymphaeetum tetragonae, Chareto virgatae–Scirpetum lacustris associations are identified in eutrophic and mesotrophic lakes. Communities of Chareto strigosae–Charetum asperae, Charetum subspinosae, Chareto subspinosae–Phragmitetum australis charosum subspinosae associations develop in sulfate lakes with increased water salinity. Ruppietum maritimae, Glycerietum fluitantis purum, Hippurideto tetraphillae–Glycerietum, and Zannichellia pedunculata communities are typical for river estuaries.
We have described most of the rare communities for specially protected natural areas of the Arkhangelsk Region: in the Kenozero National Park, the Onega Pomorie National Park, the Pinezhskiy Nature Reserve, the Nenetskiy Nature Reserve, and the Pakhanchenskiy Nature Reserve. At the end of the article, some recommendations for the protection of rare communities are given. They are useful for monitoring such species in protected areas. The protection of rare communities is based on the principle that any species that is part of the community is its integral part. The destruction of cenosis-forming species leads to the disappearance of both an integral unique community and protected species as a part of it, regardless of whether they are phytocenotically significant, or grow singularly within the community.
Spore morphology of Taenitis, Syngramma, and Austrogramme species (Pteridoideae, Pteridaceae) from South-Eastern Asia and Oceania. II
Authors: Vaganov Alexey V. , Gureyeva Irina I. , Shmakov Alexander I. , Kuznetsov Alexander A. , Romanets Roman S.
Published: October 2021

This paper continues consideration of the spores of three paleotropical fern genera – Taenitis, Syngramma, and Austrogramme (Pteridoideae, Pteridaceae) from South-Eastern Asia and Oceania. At the second stage, we carried out a comparative scanning electron microscopy study of spores of three species of Austrogramme, four species of Syngramma, and six species of Taenitis and added information about previously studied spores of seven species of these genera. Spores of all examined species are trilete, tetrahedral or tetrahedral-globose with convex to hemispherical distal side and plane, convex or conical proximal side. The spores of Austrogramme species are the smallest, simplest in ornamentation and similar to each other. Sculpture of the proximal and distal sides are microverrucate, the surface of the spores is covered by granular deposits. Spores of most Syngrammaspecies are very similar to spores of Austrogramme species in shape and surface sculpture: their distal and proximal surfaces are microverrucate, whereas the spores of S. borneensis and S. cartilagidens have the low-tuberculate sculpture. Spores of Taenitis species are very different from the spores of Austrogramme and Syngramma. Seven of nine studied species have spores with well-expressed cingulum (T. blechnoides, T. cordata, T. diversifolia, T. interrupta, T. luzonica, T. obtusa, and T. requiniana), three species (T. cordata, T. hookeri, and T. pinnata) have spores with prominent laesural ridges. The spores have well-expressed ornamentation – tuberculate, baculate, rugate, tuberculate-rugate. The most conspicuous character of the ornamentation of spore surfaces is the presence of rodlets associated with sculpture elements. The densest rodlets are characteristic of Taenitis diversifolia, T. luzonica, T. obtusa, and T. requiniana. Spore size (equatorial diameter) ranges on average between 22 μm and 37 μm in Austrogramme, between 27 μm and 41 μm in Syngramma, and between 26 and 51 μm in Taenitis species.
Phytocoenotical behaviour of boreal plant species in broadleaved-forest zone communities
Authors: Kucherov Ilja B. , Zverev Andrey A.
Published: October 2021

Phytocoenotic behaviour of 11 species of boreal vascular plants and mosses is analyzed within the broadleaved-forest zone in comparison with that in different subzones of the boreal-forest zone, based upon the set of 1417 relevés made in European Russia in 1996–2017. The significance of differences in species cover is estimated by means of the one-way ANOVA. The cover of species like Vaccinium myrtillus, V. vitis-idaea, andHylocomium splendens in broadleaved / spruce forests of zonal types is constantly decreasing southwards. On the contrary, the cover of Luzula pilosain Scots pine forests and Pleurozium schreberi and Dicranum polysetum in paludified Norway spruce forests is subject to southward increase. Finally, Oxalis acetosella and Equisetum sylvaticum demonstrate maximae of their cover in forests of zonal types in the southern-boreal and hemiboreal subzones. The dark-coniferous boreal forest “cortege” of species is breaking down into several different floristic elements in the broadleaved-forest zone. These are: “vaccinietal” species p. p. sensu Yu. D. Kleopov (like Vaccinium myrtillus), “quasi-boreal” species sensu V. B. Sochava (Oxalis acetosella, Maianthemum bifolium, Trientalis europaea), hygromesophytes with aged areas (Equisetum sylvaticum), associated species with European-Ancient-Mediterranean nemoral (Luzula pilosa) or East-Asian boreal-montane (Rubus saxatilis) origins. Phytocoenotical behaviour of species is not always different in the intrazonal and the zonal community types but is rather similar in many cases like those of Vaccinium vitis-idaea and Equisetum sylvaticum. The more distinct differences in species positions are found in the extrazonal communities. The statistically proved differences are lacking in phytocoenotical behaviour of Maianthemum bifolium and Trientalis europaea in different zones and subzones due to either florogenetical, or purely methodical reasons, the latter connected with low abundance but high constancy of these species. Disintegration of vegetation “corteges” and individualization of coenotic patterns of species previously growing together are usually observed at the climatically determined (zonal / subzonal or altitudinal) distribution limits.
Indirekte Referenz - Pragmatischer Realismus und Medientheorie
Authors: Renn Joachim
Published: October 2021

Wenn Übersetzungszwänge zwischen sozialen Sinnhorizonten den Kardinaleffekt sozialer Differenzierung bilden, kann eine entsprechende Soziologie multipler Differenzierung ihren eigenen Realitätsbezug, wie den jedes anderen Sinnzusammenhanges, nur als eine Art »indirekter Referenz« ausweisen. Joachim Renns Analyse geht einen medientheoretischen Umweg: Sie konzentriert sich zunächst auf die Bedeutung verschiedener Kommunikationsmedien für die eigenlogische Formatierung möglicher Gegenstände der Bezugnahme und erst dann auf die Referenzansprüche der Soziologie selbst. Es zeigt sich: Diese pragmatistische Rekonstruktion einer medialen »Welt-Erschließung« wird - anders als der weit verbreitete Konstruktivismus - der realistischen Intuition einer Soziologie als empirischer Wissenschaft gerecht.
"Tense encounters"
Authors: Kirndörfer Elisabeth , Pilz Madlen
Published: October 2021

We discuss the 'postmigrant condition' of contemporary Western European societies at the example of women's initiatives which aim at promoting encounter between women with and without a history of forced migration. We analyse these initiatives in their potential to forge affective spaces of solidarity and empowerment while at the same time being embedded in hegemonic discursive dynamics of othering and differentiation. Against this background, we ask: Under which conditions can women's initiatives become sites of trust, comfort and solidarity and thus of micro-political struggle? Which paradoxical dynamics can practices of solidarity and empowerment engender in contexts of uneven power relations?
Technikimplementierung in der Pflege: die Bedeutung der soziotechnischen Innovationsbewertung aus gesundheitsökonomischer Sicht
Authors: Zerth Jürgen
Published: October 2021

Zerth adressiert Bedingungsfaktoren für Adoption und Implementierung von Pflegetechnologien mit einem dezidierten Blick auf die soziotechnische Umgebung, in der Technologien in den Interaktions- und Sorgebeziehungen und abhängig vom Setting eingesetzt werden sollen.
Erfolg
Authors: Niehaus Michael , Peeters Wim , Gruner Horst , Wollmann Stephanie
Published: October 2021

Zwischen 1890 und 1933 etabliert sich im deutschen Sprachraum ein neues Genre der Ratgeberliteratur, in der Erfolg als etwas vorgestellt wird, das jeder durch Selbstformung erreichen kann. Zum Programm dieser Texte gehören neben Techniken der Rationalisierung oder Willenssteigerung auch unterschiedliche Lehrformate, Adressierungsstrategien und Erzählungen, die von erfolgreichen Unternehmern, ewigen Pessimisten und nervenstarken Aufsteigern handeln. In diesem Buch geben ein theoretischer Aufriss und 14 Einzelanalysen repräsentativer Erfolgsratgeber Einblicke in das Zusammenspiel institutioneller und narrativer Vermittlungsebenen, das bis heute die Selbstoptimierungsliteratur maßgeblich prägt.
Kunst mit allen Sinnen
Authors: Preiß Cecilia Mareike Carolin
Published: October 2021

Die in diesem Buch vorgenommene Auseinandersetzung mit den Sinnen in der Kunst entfaltet sich an der Schnittstelle von Medien- und Kunstwissenschaft. Entgegen der Auffassung, dass in virtuellen Räumen Körperlichkeit und die Vielfalt sinnlicher Wahrnehmung an Bedeutung verlieren, deuten aktuelle Beispiele der Medienkunst in eine andere Richtung. Kunst löst sich hierbei vom Objekt und wandert auf die interagierenden Körper der Rezipient:innen. Wenn deren ephemere sensomotorische Erfahrung zum eigentlichen künstlerischen Gegenstand wird, kommen neue Praktiken des Dokumentarischen ins Spiel. Cecilia Preiß geht der Konjunktur der Multimodalität in zeitgenössischer digitaler Medienkunst auf den Grund.
Geschichte digital schreiben
Authors: Wachter Christian
Published: October 2021

Geschichte als nicht-linearen Verlauf aufzufassen heißt, historische Zusammenhänge in all ihrer Komplexität auszudrücken. Dabei stoßen wir mit gedruckten Texten an Grenzen. Christian Wachter zeigt: Digitaler Hypertext hingegen erweist sich als konstruktive Erweiterung für die Erkenntnisvermittlung - non-linear gedachte Zusammenhänge werden mit einem non-linearen Medium explizit repräsentiert. Entgegen einem netzwerkartigen Schreiben drängen sich multilinear angelegte und visualisierte Erzählpfade auf, die den narrativen und argumentativen Aufbau der Wissensangebote abbilden. Sie vermitteln dadurch epistemisch Wesentliches.
Method for calculating the resistance of an asynchronous squirrel cage motor according to passport data and estimation of its error
Authors: Kotenev Viktor I. , Stulov Alexander D.
Published: October 2021

A simpler method is proposed for determining the resistances of an induction motor (total inductive resistance, active resistance of the stator and reduced active resistance of the rotor) according to reference data. Three algebraic equations are obtained from the equations of reactive power dissipation and electromagnetic power in the nominal mode and the equation of electromagnetic power in the critical mode: the first is relative to three resistances, the second is the equation of the dependence of the active resistance of the stator relative to the total inductive resistance, and the third is the active resistance of the rotor relative to the total inductive resistance. An iterative method is proposed for solving this system of equations, which gives a small error already at the second step of the calculations. When assessing the error of the method, the specified values ​​of the electromagnetic power and the multiplicity of the maximum torque were used, which are expressed relative to the reference resistances of the control motors. An estimate is given of the total error from the imperfection of the method and the discrepancy between the reference values ​​of the multiplicity of the maximum torque and power on the motor shaft with their refined values ​​calculated from the resistances from the reference book. Based on the calculated resistances in the nominal mode, the dependences of the active and inductive resistances of the motor are constructed using an accurate and approximate method.
Technological aspects of manufacturing and preparation of mock-up samples of liquid metal fuses for thermal and switching tests
Authors: Kuznetsov Аnatoly V. , Yurenkov Yuriy P. , Agliullov Airat I.
Published: October 2021

The advantages of current limiters based on liquid metal self-healing fuses (LMSHF) provoke interest and the need for the development and continuation of research in the direction of creating prototypes and industrial samples of LMSHF, determining the sphere of their application. One of the significant reasons for the lack of the necessary results of experimental research in the literature sources is the technological problems of manufacturing prototypes of LMSHF and preparing them for testing. This is especially noticeable when using fusible elements made of alkali metals that are aggressive to the environment. The proposed approach to solving the technological problems of manufacturing and preparing prototypes for testing is of interest and can be used by scientific groups engaged in research related to LMSHF. The development and discussion of such a technology can contribute to the activation of research towards of creating prototypes, their research aimed at obtaining new practical results.
Alcance de los créditos a tasa subsidiada para mipymes argentinas
Authors: Corzo Lilia , Guercio M. Belén , Vigier Hernán Pedro
Published: October 2021

El objetivo de este trabajo es analizar el alcance de los créditos bancarios a tasa subsidiada para mipymes. Seestima un modelo Logit para examinar los determinantes de la demanda efectiva y potencial para empresas argentinas en 2017. Los principales resultados muestran que las empresas con necesidades insatisfechas de crédito bancario tradicional presentan una menor demanda efectiva y potencial. Además, se observa una relación positiva entre el tamaño de la empresa y la demanda efectiva. La demanda potencial, por suparte, es explicada por la forma jurídica, el acceso al crédito comercial, la educación del gerente y haber experimentado una pérdida de inversión por falta de crédito. Este estudio genera bases para rediseñar y mejorar el alcance de los programas de financiamiento para mipymes.
Adesp. 741 K.-A. Some Aspects of Comic Stylistics
Authors: Bartol Krystyna
Published: October 2021

This article explores the thematic and stylistic function of the anaphora in the anonymous fragment of Old Comedy (741 K.-A.). It also analyses an interpretation of Plutarch’s comment on these lines.
A High-Pressure Shear Testing Approach to Measure Flow Stresses Near a Friction Stir Welding Tool
Authors: Prymak David , Miles Michael , Nelson Tracy , Michael Fredrick
Published: October 2021

A new approach for measuring flow stresses near a spinning friction stir welding (FSW) tool is evaluated on AA 6061-T6 plate. The test consists of plunging a cylindrical tool with a flat face into the plate at different rotational speeds, using a variety of constant vertical loads. A viscosity-based model of the shear layer created under the tool is employed to estimate local flow stresses. The flow stresses measured by this approach exhibited an inverse relationship with temperature and a positive dependence on the pressure imposed by the spinning flat-faced tool. Compared to hot compression and hot torsion results, estimated flow stress levels in high-pressure shear were lower by 20–68 %, for similar temperatures and strain rates, owing to grain refinement induced by continuous dynamic recrystallization. This high-pressure shear approach could be used to characterize material behavior near a rapidly spinning FSW tool, leading to improved process model predictions.
SERUM EXPRESSION OF MICRORNA-142 IN A COHORT OF BULGARIAN PATIENTS WITH INFLAMMATORY BOWEL DISEASES
Authors: Atanassova A.
Published: October 2021

The study aims to assess the expression of serum miRNA-142_3p and miRNA-142_5p in IBD patients and its correlation with disease extent, activity and severity. It was performed on 35 patients with ulcerative colitis (UC), 35 patients with Crohn’s disease (CD) and 30 healthy controls. Serum miRNA-142 expression was assessed using reverse transcriptase quantitative real time PCR (RT-qPCR), and then correlated with that of a group of 30 healthy subjects. It was also correlated with disease extent and disease activity and severity indices (CDAI, Montreal classification, Partial Mayo score). The patients’ group showed mean serum miR-142_3p expression of 2.69±1.96 for CD, 1.66±0.90 for UC and 1.25±0.91 for the control group and serum miR-142_5p expression of 2.42±2.08 for CD, 1.61±1.12 for UC and 1.21±0.78 for the control group with a significant difference between groups. Conclusion: The expression of miR-142_3p and miR-142_5p was significantly higher in patients with CD compared to patients with UC and the control group.
Development of validated UHPLC–PDA with ESI–MS-MS method for concurrent estimation of magnoflorine, berbamine, columbamine, jatrorrhizine, palmatine and berberine in Berberis aristata
Authors: Basera Ishita A. , Girme Aboli , Bhatt Vijay P. , Saste Ganesh , Pawar Sandeep , Hingorani Lal , Shah Mamta B.
Published: October 2021

A validated UHPLC-PDA with an ESI-MS/MS method has been developed for simultaneous estimation of six bioactive alkaloids (magnoflorine, berbamine, columbamine, jatrorrhizine, palmatine and berberine) in the different extracts of the roots of Berberis aristata DC (Family:Berberdiaceae). It is an important medicinal herb native to Northern Himalaya and commonly known as ‘daruharidra’, ‘daruhaldi’, ‘Indian barberry’ or ‘tree turmeric’. An insight into the research literature uncovered reports on isoquinoline alkaloids like magnoflorine, berbamine, columbamine, jatrorrhizine, palmatine, and berberine as major bioactives in B. aristata roots, possessing different pharmacological and therapeutic effects. In the present study, these aforementioned alkaloids were separated on Phenomenex Luna®, 5 µm-C8 analytical column. The HPLC-MS analysis was performed at a flow rate of 0.90 mL min−1. Each alkaloid that is resolved was characterized by precursor ions and fragment ions with electrospray ionization (ESI) source in both positive and negative ionization using scan mode. The limit of detections (LODs) were 0.087, 0.727, 0.035, 0.124, 0.782 and 0.794 μg mL−1 for magnoflorine, berbamine, columbamine, jatrorrhizine, palmatine and berberine, respectively. The proposed UHPLC-PDA method was fully validated according to international (ICH) guidelines and was found to be selective, sensitive and highly accurate for the concomitant estimation of the aforementioned symbolic bio-markers of B. aristata roots.
Use of different options of anti-inflammatory therapy in patients with severe COVID-19
Authors: Skoryk Vita
Published: October 2021

The aim of the study. To compare the effectiveness of methylprednisolone, dexamethasone and tocilizumab in patients with severe coronavirus disease. Identify the most appropriate treatment option.
Materials and methods. Patients of group 1 (n=20) received for anti-inflammatory purposes tocilizumab at a dose of 600–800 mg. Patients in group 2 (n=82) received pulse therapy with methylprednisolone. Patients in group 3 (n=20) received dexamethasone 6 mg / day. Data are presented as M [25–75]. Statistical analysis of the results was performed using the program "Statistica 10". Significance of differences in indicators was assessed using the nonparametric Wilcoxon test. The results were considered reliable at values of p <0.05.
Results. The severe course of coronavirus disease with the development of cytokine storm and respiratory distress syndrome is characterized by an increase in markers of inflammation: in group 1 the median CRP was 89.2 g / l, in group 2 – 64.2 g / l, and in 3 – 76.2 g / l, and did not differ significantly between groups (p> 0.05). The level of IL-6 in group 1 was 61.8 pg / ml, in group 2 – 64.6 pg / ml, and in group 3 – 46.5 pg / ml without significant differences between groups (p> 0.05). The level of ferritin in all groups exceeded normal values.
Conclusions The most favourable result was obtained when using methylprednisolone: it was possible to reduce the mortality rate to 59.8 %. The relative risk of developing VTE was significantly higher in groups 1 and 3 (RR12 6.8 [2.7–16.8] p12 <0.0001, RR23 0.15 [0.06–0.35] p23 <0.0001), which gives grounds to confirm the presence of anticoagulant activity in methylprednisolone
Impact of ranolazine on exercise tolerance and arrhythmias in patients with INOCA
Authors: Tseluyko Vira , Pylova Tetyana
Published: October 2021

The aim of the study to evaluate the effect of supplementation of basic therapy by ranolazine in patients with INOCA on exercise test parameters and Holter ECG monitoring.

Materials and methods. 53 patients with stable coronary heart disease were examined, including 18 men (33.9 %) and 35 (66 %) women, the average age of patients was 57 (±9.68) years. According to the results of coronary angiography all patients had non-obstructive coronary arteries. In addition to physical and laboratory examination, bicycle ergometry, Holter ECG monitoring and echocardiography were included in the examination of patients. Patients were divided into 2 groups: group I - patients who in addition to standard therapy received ranolazine at a dose of 1000 mg twice a day for 6 months, and group II patients with standard coronary heart disease therapy. After 6 months from the beginning of the observation an objective examination, echocardiography, exercise test, Holter ECG monitoring were repeated.

Results. The study found that patients receiving ranolazine in addition to standard therapy had a statistically significant increase in exercise duration after 6 months compared with baseline and group II. Before treatment in group I, the duration of the exercise test was 356.51±180.24s, and after treatment 414.32±142.10s (p=0.03). In group II, the duration of the test before treatment was 361.4±160.24 c, and after 380.5±152.2 s (p=0.15). It was also found that the duration of the test differed significantly in group I after treatment of patients from group II after treatment of patients with a standard treatment regimen (p=0.04). According to the results of Holter ECG monitoring in group I found a positive effect of ranolazine on the frequency of ventricular arrhythmias: before treatment n=1142 [30; 2012], after treatment n=729 [23; 1420], while in group II a significant difference between the number of extrasystoles before treatment and after not detected (n=1026 [17; 1920], n=985 [15; 1680], respectively) p=0.18.

Conclusions. The addition of ranolazine to the basic therapy of patients with non-obstructive coronary arteries disease helps to increase exercise tolerance (according to the loading stress test) and contributes to a significant reduction in the number of ventricular arrhythmias (according to Holter-ECG) compared with both baseline and group II
ESP teacher professional development during the COVID-19 era at Igor Sikorsky Kyiv polytechnic institute
Authors: Olizko Yuliia , Saienko Nataliia
Published: October 2021

This article analyses professional development, completed by 34 in-service ESP teachers of the Department of English for Engineering No. 1 at Igor Sikorsky KPI during March-December 2020. In total 3344.3 hours of professional teacher development were analysed. They were confirmed by certificates of attendance and completion. A significant rise in the number of hours ESP teachers of the Department of English for Engineering No. 1 at Igor Sikorsky KPI spend professionally developing was noticed compared to the years before the pandemic. Quantitative methods and statistical and mathematical processing were used to analyse the data. Nine main categories of professional development were outlined. ICT teacher skills (51.8 % hours), teaching approaches, methods and techniques (18.4 %), student and teacher assessment and evaluation (14.5 %) were distinguished as the three top categories of professional development during the COVID-19 era at the department. Together these categories embraced approximately 85 % of all time, spent on professional growth by ESP teachers of the Department of English for Engineering No. 1 at Igor Sikorsky KPI. Other six categories included: connections with other disciplines (6.6 %), academic publications and research issues (4.8 %), international teacher collaboration (2.1 %), student and teacher behavior problems (1.6 %), language issues (0.2 %), curriculum development (0.07 %). The results confirmed the high demand for learning new ICT tools, platforms, and Google services in March-December 2020, the high interest in teaching approaches, methods and techniques, which can be used during the COVID-19 era, and ways to assess and evaluate students’ and teacher’s performance. Webinars, online conferences and online courses turned out to be the most popular forms of professional development of ESP teachers at Igor Sikorsky KPI during March-December 2020. Another discovered trend was the variety of providers of trainings for ESP teachers during the COVID-19 era. The list of them included 37 different organisations, institutes and centers, such as Dinternal education, Training Center Linguist (Cambridge University Press), Educational project “Na urok”, The Ukrainian Institute of Information Technologies in Education, Oxford University Press, Macmillan Education and others
Global imperatives of economic component development of general secondary education in Ukraine
Authors: Klymchuk Iryna
Published: October 2021

A literary analysis of economic issues of financing education by the state, in accordance with international law and globalization of the world economy in order to implement the right to quality education is presented. A conceptual analysis of the system of improving the financing of educational institutions in Ukraine, in particular the specifics and various mechanisms for raising funds and international cooperation of developing countries with developed countries and international programs has been conducted. In addition, the results of international assistance to Ukraine, including financial assistance at the level of general education – international charitable assistance in the form of an international project "House of Europe", within the international programs "Erasmus +" and "European Solidarity Corps" are analyzed. The international program "House of Europe" is presented, which supports creative cooperation between Ukrainian organizations, educational institutions and their partners from the EU and the UK, finances the development of cultural infrastructure and educational programs for young people. Also presented is the Erasmus + Program (2021–2027), an EU program to support and develop education, training, youth and sport in Europe. The program focuses on the social integration of young people, the environmental and digital development of developing countries, and the participation of young people in democratic life.
According to the results of joint activities within the international program / project "House of Europe", the international program "Erasmus" and the European Solidarity Corps, the most defined criteria for the quality of general secondary education are identified, namely: objective assessments of educational institutions - student performance tests, the probability of successful entry into prestigious colleges and universities after graduating from primary and secondary school; as well as subjective assessments - attendance of classes, received assessments (success), students' interest in certain training courses / programs, taught in an educational institution.
Statistics on the activities of the "ESC Summary" / European Solidarity Corps and "Erasmus +" for 2019–2020 according to the reporting "ESC Summary" / European Solidarity Corps and "Erasmus +" are presented
Research of antiulcer activity of dietary concentrate of phenolic compounds of apples on models of experimental ulcer in rats.
Authors: Galuzinska Liubov , Kravchenko Vira , Kravchenko Ganna , Briukhanova Tetiana , Fylymonenko Victoriia
Published: October 2021

Medicinal plants have been widely used in the treatment of many diseases, especially in the gastroenterology, given that the use of synthetic antiulcer drugs in clinical practice often leads to the development of various kinds of side effects and, accordingly, have a large list of contraindications. The aim of this experimental work was the study of the antiulcer activity of the food concentrate of phenolic compounds of apples on the models of experimental ulcers in rats. Materials and methods. The studies included two stages, which were carried out on models: stage I – a model of alcohol–prednisolone stomach ulcer in rats, stage II – a model of indomethacin stomach ulcer in rats in accordance with the methodological recommendations of the SEC of the Ministry of Health of Ukraine. The studied concentrate was administered in a dose based on the total content of polyphenols – 9 mg per 100 g of weight. Quercetin at a dose of 5 mg / kg and ranitidine at a dose of 20 mg / kg were used as reference drugs. After replicating the models, a macroscopic examination of the gastric mucosa was carried out and the content of TBA-reactants and reduced glutathione in the stomach homogenate was determined. Results. Under pathological conditions, the therapeutic effect of the food concentrate of phenolic compounds of apples and reference drugs was comparable in terms of the degree of ulcer defect. It was proved that food concentrate of phenolic compounds of apples and reference drugs inhibit the course of lipid peroxidation reactions and support endogenous antioxidant defense systems. Conclusions. The obtained results make it possible to recommend a further study of the food concentrate of phenolic compounds of apples for the creation of a pharmaceutical preparation on its basis. A promising area of application of this concentrate will be the prevention and treatment of gastric ulcer
Direct induction of adventitious root in Schefflera octophylla (Lour.) Harms from leaf explants cultured in vitro
Authors: Thi Luy Huynh , Huu Ho Nguyen , Van Le Bui
Published: October 2021

Schefflera octophylla (Lour.) Harms is a precious plant species belonging to the Araliaceae family. All parts of plant have been used to create products for human health. In tissue culture of medicinal plants, the induction and multiplication of adventitious root of Schefflera octophylla for biomass collection have been studied. In this report, results on induction of adventitious root from leaf explants cultured in vitro of this plant species were presented. Leaf disks (~ 10 x 10 mm), leaf transverse - thin cell layers (t-TCLs) (~ 3 x 10 mm) were cultured on different mineral media MS, ½MS, B5, SH with NAA (0 - 5 mg/L), sucrose (0 - 50 g/L) and light intensity (0 - 4,000 lux). The results showed that, 30 days after culturing on ½MS solid medium plus 3 mg/L NAA, and 30 g/L sucrose in 4,000 lux light condition, direct formation of adventitious root was best from leaf disks, t-TCLs with rooting rate (%) 100, 100; root number/sample 68.80, 21.96; root lenght (mm) 16.53, 15.53, respectively. Leaf disk culture resulted in better rooting than t-TCL culture in two criteria of root number and root length. Morphological and histological observations of adventitious root primordia formation in the leaf disk were also performed. This is the first report on direct formation of adventitious root by in vitro culture of leaf disks/t-TCLs in Schefflera octophylla with very high efficiency, creating basis for further studies on root biomass multiplication for production of bioactive compounds.
B. I. Simenach: the life devoted to science
Authors: Golubeva Inna , Baburkina Olena
Published: October 2021

B. I. Simenach: the life devoted to science
Current trends in the treatment of acetabular fractures (literature review)
Authors: Vyrva Oleg , Vatamanitsa Dmytro
Published: October 2021

Acetabular fractures are known for their disabling outcomes, so the search for optimal treatment tactics is an actual problem for modern orthopedics and traumatology. Materials and methods. Randomized trials that reflect the results of acetabular fractures treatment depending on the method of treatment were analyzed. The literature was searched in the PubMed Central database. Hip joint is a complex two-component articulated system. Traumatic lesion of all elements of the joint creates the conditions for the development of a wide range of complications and secondary changes that must be taken into account at preoperative treatment. Aceta­bular fracture is an intra-articular injury, where the visualization methods have the prominent significance. Nowadays the treatment can be conservative and surgical. Surgical treatment can be divided into two areas: osteosynthesis and arthroplasty. Anatomical reposition and stable fixation of fragments, in the most of cases, is the key to a satisfactory functional result, but the development of post-traumatic changes in the joint nullifies the results of even perfect osteosynthesis, encourages repeated surgery and, finally, hip replacement. In recent years, primary arthroplasty has been successfully used to treat acetabular fractures, reducing inpatient and rehabilitation period, compared with osteosynthesis, preventing the possible development of secondary degenerative changes in the joint. Conclusions. Acute hip replacement is an effective treatment, however, the technical aspects of reliable fixation of the ace­tabular component of the implant are insufficiently substantiated and highlighted in actual literature and constitute significant research interest.
The influence of group life-design-based counselling on learners’ academic self-construction: A collective case study
Authors: Maree N , Maree JG
Published: October 2021

The purpose of this study was to explore how life-design-based counselling can influence young learners’ academic self-construction within a group context. The study involved a qualitative mode of enquiry with 12 participants. Life-design-based intervention strategies, together with various (postmodern) qualitative techniques, were used to gather data. Thematic analysis was used to analyse the data and identify themes and sub-themes. The findings indicate that the participants exhibited enhanced academic self-construction in general after the intervention. More specifically, they displayed improved future aspirations as they made sense of their current learning. Future research could assess the feasibility and value of life-design counselling as early as the primary school years, as it seems to hold numerous benefits for young individuals that may positively influence their life-long career development.
Urban consumption in modern Iran (Case study: City of Zanjan)
Authors: Fathalibiglou Mona , Pirbabaei Mohammad Taghi
Published: October 2021

Abstract Numerous studies have been conducted on consumption within urban spaces. However, how people from different socio-economic classes consume urban spaces has not been sufficiently studied specially in Iran. To fill these gaps, the distinguishing feature of this paper is providing answer to how people consume urban spaces in everyday life and focusing on understanding style of consumption in urban spaces considering the dominant category of purchasing, taking heed of the various socio-economic classes in lieu of merely sex issues in modern life. To this end, abductive research strategy was employed. Using data encoding method in Grounded Theory, the results were analyzed which indicated four patterns for urban consumption and 24 consumption spaces in Zanjan. These consumption spaces were studied based on six styles of consumption. The results of the study indicated symbolic consumption is the most prominent style of consumption and that in many consumption spaces in Zanjan, different socio-economic classes are segregated and people from certain socio-economic classes are mostly present and the presence of people from other classes is insignificant. While social mixing was seen in some spaces, it was found that in urban space consumption people associate meanings with the spaces which convey their desired identities.
Territorialidade e desastre: a gestão dos desastres no Brasil com base no estudo de caso da Defesa Civil em Santa Catarina
Authors: Joner Késia , Avila Maria Roseli Rossi , Mattedi Marcos Antonio
Published: October 2021

Resumo O artigo aborda a gestão dos desastres a partir do estudo de caso da Defesa Civil de Santa Catarina. Argumenta que quanto maior a centralização e tecnificação, menor a coordenação e mais burocrática a gestão. A burocratização resulta em uma atuação mais voltada à Gestão dos Desastres (GD) do que à Gestão do Risco de Desastres (GRD) como preconizam o Marco de Ação de Hyogo e o Marco de Sendai. Com a centralização e a tecnificação, fases importantes da GRD como a participação social e comunitária nos processos decisórios são ignoradas, bem como o conhecimento científico e os saberes locais. Estes últimos, premissas importantes para a GRD pois atuam no fortalecimento da resiliência de um sistema ou comunidade.
Modelos de estimativa do grau de saturação do concreto a partir das variáveis ambientais aplicados à análise de confiabilidade de estruturas de concreto armado atacadas por íons cloreto
Authors: Favretto Felipe , Magalhães Fábio Costa , Guimarães André Tavares da Cunha , Climent Miguel Ángel , Real Mauro de Vasconcellos
Published: October 2021

RESUMO A problemática da durabilidade de estruturas de concreto armado inseridas em ambientes de severa agressividade se apresenta como uma das principais dificuldades enfrentadas pela cadeia da construção civil. Dos vários agentes capazes de degradar estas estruturas tem-se atenção especial aos íons cloreto capazes de causar a corrosão de armaduras, estes íons estão amplamente presentes em ambientes marinhos. Neste espectro, a estimativa de vida útil das estruturas de concreto armado se torna uma temática fundamental na avaliação da durabilidade de estruturas. Apesar de vários processos causarem penetração de cloretos no concreto tem-se praticamente como consenso que o mecanismo de difusão é o predominante, tendo-se como um modelo clássico de caracterização da penetração de cloretos a 2ª Lei da difusão de Fick. O processo de difusão iônica sofre forte influência do grau de saturação (GS) dos poros do concreto, está influencia incide diretamente sobre o coeficiente de difusão de cloretos (D). Ainda que se tenham desenvolvido metodologias de medição do GS elas se apresentam dispendiosas em tempo e recursos. Objetiva-se então apresentar estimativas do Grau de Saturação, baseadas nas condições ambientais de exposição da estrutura, e analisar a influência deste parâmetro na estimativa de vida útil de elementos estruturais de concreto armado sob a ótica da confiabilidade. São utilizados dados meteorológicos e de medição do GS de duas regiões litorâneas, sendo uma em Rio Grande, no sul do Brasil e outra em Santa Pola, sudeste da Espanha. Obtiveram-se modelos de estimativa do GS do concreto para cada situação pesquisada e também para ambos os ambientes em conjunto. Constatou-se então, através de uma abordagem probabilística, a forte influência do uso destes modelos na estimativa de vida útil de elementos de concreto armado.
Avaliação de propriedades relacionadas à penetração de cloretos em concretos produzidos com substituição parcial de cimento por resíduo de beneficiamento de rochas ornamentais
Authors: Teixeira Fernando Ritiéle , Wally Gustavo Bosel , Magalhães Fábio Costa , Sell Junior Félix Krolow , Paliga Charlei Marcelo , Torres Ariela da Silva
Published: October 2021

RESUMO Recentemente muitas estruturas de concreto armado têm apresentado manifestações patológicas precocemente, tendo sua vida útil reduzida. Dentre essas manifestações, destaca-se a corrosão das armaduras desencadeada, principalmente, pela ação deletéria dos íons cloreto ou do dióxido de carbono. Em busca de alternativas que reduzam a penetração desses agentes no concreto, neste trabalho é avaliada a influência da substituição parcial de cimento Portland pelo resíduo gerado durante o beneficiamento de rochas ornamentais (RBRO). O resíduo utilizado foi caracterizado através de ensaios de massa específica, granulometria a laser, difração de raios X (DRX) e fluorescência de raios X por dispersão de energia (EDX). Foram produzidos concretos com substituição de cimento por RBRO nos teores de 5 %, 7,5 % e 10 % em relação à massa de cimento, além de um traço referência. Desses concretos foram avaliadas a resistência à compressão, a absorção de água por imersão e por capilaridade e a penetrabilidade de cloretos. Os resultados indicam que a substituição parcial de até 7,5 % de cimento por RBRO conduziu à obtenção de um material que apresenta comportamento similar ao concreto referência em aspectos como resistência mecânica, absorção de água e penetrabilidade de cloretos, proporcionando um uso sustentável a um resíduo que seria descartado no meio ambiente.
Desempenho da argamassa técnica decorativa antes e após envelhecimento acelerado em câmara de intemperismo
Authors: Silva Adriano de Paula , Carvalho Júnior Antônio Neves de , Gouvêa Gabriel Henriques Rabelo , Vieira Mauro Eugênio Lechi
Published: October 2021

RESUMO O sistema monocamada se apresenta como uma alternativa ao sistema de revestimentos convencionais em argamassa e pintura decorativa. Neste trabalho foi realizada a análise do desempenho do sistema monocamada em relação a resistência de aderência à tração e estanqueidade pelo método do cachimbo antes e após a submissão de placas de substrato padrão ao envelhecimento acelerado em câmara de intemperismo. Protótipos foram submetidos a ciclos de envelhecimento, equivalentes à 6 anos e 3 meses de exposição natural. Conclui-se que os substratos não intemperizados são mais permeáveis que os intemperizados. A resistência de aderência à tração dos substratos com e sem intemperismo, atenderam aos parâmetros estabelecidos pela norma ABNT NBR 16648 [1].
Asymmetries in Perceptual Adjustments to Non-Canonical Pronunciations
Authors: Babel Molly , Johnson Khia A. , Sen Christina
Published: October 2021

This paper examines two plausible mechanisms supporting sound category adaptation: directional shifts towards the novel pronunciation or a general category relaxation of criteria. Focusing on asymmetries in adaptation to the voicing patterns of English coronal fricatives, we suggest that typology or synchronic experience affect adaptation. A corpus study of coronal fricative substitution patterns confirmed that North American English listeners are more likely to be exposed to devoiced /z/ than voiced /s/. Across two perceptual adaptation experiments, listeners in test conditions heard naturally produced devoiced /z/ or voiced /s/ in critical items within sentences, while control listeners were exposed to identical sentences with canonical pronunciations. Perceptual adaptation was tested via a lexical decision test, with devoiced /z/ or voiced /s/, as well as a novel alveopalatalized pronunciation, to determine whether adaptation was targeted in the direction of the exposed variant or reflected a more general relaxation. Results indicate there was directional and word-specific adaptation for /z/-devoicing with no evidence for generalization. Conversely, there was evidence of /s/-voicing generalizing and eliciting general category relaxation. These results underscore the role of perceptual experiences, and support an evaluation stage in perceptual learning, where listeners assess whether to update a representation.