bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of a novel bioactive wound dressing: an in vitro and in vivo study
Authors: Azhar Fahimeh Farshi , Rostamzadeh Paria , Khordadmehr Monireh , Mesgari-Abbasi Mehran
Published: June 2021

Objective:

Hard-to-heal wounds, such as pressure ulcers and diabetic ulcers, are a major challenge for wound dressings. The aim of this study was to develop a bioactive dressing based on polymers and natural materials with unique biological and therapeutic properties.

Method:

The dressing was composed of an active layer containing polyvinyl alcohol (PVA), honey, curcumin and keratin, and an upper layer with lower hydrophilicity comprising PVA to induce flexibility. Physicochemical properties of the dressing were characterised by Fourier transform infrared spectroscopy, field emission scanning electron microscopy, swelling behaviour and antibacterial measurements. A wound healing study was performed using an experimental rat model and two different compositions of the bioactive dressing were compared with a commercial wound dressing (Comfeel, Coloplast, Denmark). Histopathological evaluation was conducted for this purpose.

Results:

Characterisation results showed that a smooth bilayer film with two homogenous but distinct layers was produced. The dressing also provided adequate moisture to the wound environment without infection and adhesion due to dryness occurring. Our results exhibited significant bactericidal activity against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria and improved the wound healing process without any scarring. Histopathological findings demonstrated a significant higher healing rate in vivo together with well-formed epidermis, granulation tissue formation and tissue contraction, when compared with the commercial wound dressing.

Conclusion:

Our results demonstrated acceptable physical and healing effects for the novel bioactive wound dressing; however, more investigations are recommended.
Design of a transmissive metasurface antenna using deep neural networks
Authors: Noh Jaebum , Nam Yong-Hyun , So Sunae , Lee Chihun , Lee Sun-Gyu , Kim Yongjune , Kim Tae-Hyung , Lee Jeong-Hae , Rho Junsuk
Published: June 2021

This article presents design methods for a transmissive metasurface antenna composed of four layers of meta-structures based on the deep neural network (DNN). Owing to the structural complexity as well as side effects such as couplings among the adjacent meta-structures, the conventional design of metasurface unit cell strongly relies on the researcher’s intuition as well as time-consuming iterative simulations. A design method for a metasurface antenna unit cell with a size of a quarter wavelength operating at a frequency of 5.8GHz is presented. We describe two unique implementations for designing the target metasurfaces: 1) utilizing the inverse network 2) data augmentation by the forward network and a random search algorithm. With the usage of the two DNNs, the average transmittance of the unit cells is improved by about 0.024 than that of the unit cells designed by the conventional approach. This research invokes the application of DNN in designing antennas and other structures operating at radio frequency.
Switchable dual-band and ultra-wideband terahertz wave absorber
Authors: Chen Yi , Li Jiu-Sheng
Published: June 2021

In this paper, we introduced a switchable dual-band and ultra-wideband terahertz wave absorber based on photoconductive silicon combining with vanadium dioxide (VO2). In the terahertz absorber, photoconductive silicon cross array, silicon dioxide layer, vanadium dioxide windmill type array, silicon dioxide dielectric layer, and gold ground plane are placed from the top layer to bottom layer in sequence. When VO2 is in a metallic state and the conductivity of photoconductive silicon is 2.5×10−4 S/m, the designed structure represents an ultra-wideband absorber with an absorption larger than 90% in the range of 3.14∼7.80 THz. As VO2 is in an insulation state and the conductivity of photoconductive silicon becomes 8.0×104 S/m, the designed device acts as two absorption bands, with a terahertz wave absorber with absorption more than 98% at 1.78∼2.90 THz and 7.35∼8.45 THz. The results show that the absorption band (dual-band or ultra-wideband) and absorption intensity (from 2% to 99%) can be switched by changing the phase transition of the VO2 and the conductivity of photoconductive silicon. Furthermore, the proposed device exhibits polarization insensitive and wide incident angles (lager than 70°) for TE- and TM- polarizations incidence.
Prevalence and characteristics of childfree adults in Michigan (USA)
Authors: Watling Neal Jennifer , Neal Zachary P.
Published: June 2021

Childfree individuals choose not to have children, which makes them a distinctive group from parents who have had children, not-yet-parents who plan to have children, and childless indivduals who would have liked to have children. Most research on parental status and psychosocial characteristics has not effectively distinguished childfree individuals from other non-parents or has relied on non-representative samples. In this study, we use a representative sample of 981 Michigan adults to estimate the prevalence of childfree individuals, to examine how childfree individuals differ from parents and other types of non-parents in life satisfaction, political ideology, and personality, and to examine whether childfree individuals are viewed as an outgroup. We find that over a quarter of Michigan adults identified as childfree. After controlling for demographic characteristics, we find no differences in life satisfaction and limited differences in personality traits between childfree individuals and parents, not-yet-parents, or childless individuals. However, childfree individuals were more liberal than parents, and those who have or want(ed) children felt substantially less warm toward childfree individuals than childfree individuals felt toward each other. Given the prevalence of childfree individuals, the risks of their outgroup status, and their potential role in politics as a uniquely liberal group, it is important for demographic research to distinguish the childfree from others and to better understand these individuals.
Central venous catheter insertion- guidewire migration ratio: Right heart to inferior vena cava
Authors: Reichmann-Ariel Daphna , Sadeh Re’em , Galante Ori , Almog Yaniv , Fuchs Lior
Published: June 2021

Background

Central Venous Catheters (CVC) are being used in both intensive care units and general wards for multiple purposes. A previous study Galante et al. (2017) observed that during CVC insertion through Subclavian Vein (SCV) or the Internal Jugular Vein (IJV) the guidewire is sometimes advanced to the Inferior Vena Cava (IVC), and at other times to the right atrium. The rate of IVC wire cannulation and the association with side and point of insertion is unknown.

Objective

In this study, we describe guidewire migration location during real time CVC cannulation (right atrium versus IVC) and report the association between the insertion site and side of the CVC and the location of guidewire migration, Right Atrium (RA)/Right Ventricle (RV) versus IVC guidewire migration.

Methods

This is a retrospective study in the medical intensive care unit among patients that have received CVC during the study years 2014–2020. The rate of IVC versus right atrium/right ventricle wire migration during the procedure were analyzed. The association between the side and point of CVC insertion and the wire migration site was analyzed as well.

Results

One hundred and sixty-six patients were enrolled. 33.7% of wires migrated to the IVC and 66.3% to the versus right atrium/right ventricle. The rate of wire migration to the IVC was similar in the IJV site and the SCV site. There was no association between the side of CVC insertion and wire migration to the IVC.

Conclusion

About a third of all wire migrations, during CVC Seldinger technique insertion, were identified in the IVC, with no potential for wire associated arrhythmia. There was no association between CVC insertion point (SCV versus IJV) nor the side of insertion and the site of guidewire migration.
Contenidos, fuentes y metodología para el estudio de las relaciones de género en el Egipto ptolemaico y romano (Siglos IV a.C-IV d.C): Identidades, poder y situación socioeconómica de las mujeres a través de fuentes papirológicas
Authors: Goñi Zabalegui Amaia
Published: June 2021

En el presente trabajo se exponen los contenidos y la metodología de un futuro trabajo de investigación que concluirá con la lectura de la tesis. Éste tiene como principal objetivo profundizar en las relaciones de género en el Egipto ptolemaico y romano entre los siglos IV a.C y IV d.C, para lo cual resulta necesario conocer las identidades, el poder y la situación socioeconómica de las mujeres de este marco histórico. Así, el trabajo de investigación cuyas bases se exponen en el siguiente artículo constituye un ejemplo de laimplantación de la perspectiva de género en los estudios del mundo antiguo. Para ello, se utilizarán fuentes papirológicas escritas por mujeres o por mandato suyo, así como las que hacen referencia explicita a éstas. En concreto, el trabajo se centrará encartas personales que informan sobre la existencia y preocupaciones de un grupo determinado de mujeres del Egipto greco-romano.
Mortality in Patients With Genetic and Environmental Risk of Liver Disease
Authors: Schneider Carolin V. , Fromme Malin , Schneider Kai Markus , Bruns Tony , Strnad Pavel
Published: June 2021

INTRODUCTION:

The increasing liver-related mortality calls for hepatic surveillance programs. To design them, factors selectively increasing liver-related vs overall mortality need to be identified.

METHODS:

We analyzed mortality data from 467,558 individuals recruited by the community-based UK Biobank. The mean follow-up was 11.4 years.

Results:

While all assessed genetic factors associated with increased liver-specific mortality, only homozygous TM6SF2 mutation and SERPINA1 mutation conferred elevated overall mortality. Among the environmental factors, obesity and metabolic syndrome disproportionately contributed to liver-related deaths.

Discussion:

Our data demonstrate an interplay between genetics and environment and provide a basis for hepatic surveillance programs.
Failing Forward: Educative Curriculum Materials, an English Teaching App, and a Revolution
Authors: Darragh Janine Julianna , Petrie Gina Mikel , Pichinevskiy Stan
Published: June 2021

Educative Curriculum Materials (ECMs) are teaching materials that have the dual function of providing learning activities to students and providing professional development to the teachers that use them. Answering a call for professional development opportunities, and with input from English teachers in rural Nicaraguan schools, the designers created a set of ECMs aligned with the Nicaraguan Ministry of Education Curriculum. When physically bringing the completed materials to educators in rural Nicaraguan schools became impossible, it was determined that the delivery system had to change. With support from a team of undergraduate computer science students, the ECMs were transferred to a digital delivery system, the new format allowing for even more English teaching and learning support. This paper shares how a revolution in Nicaragua and failed project ultimately led to the creation of the English teaching app Reaching for English.
Interreligious Nursing: A conceptual framework
Authors: Tanriverdi Gülbu
Published: June 2021

Religion, which is one of fundamental element that affects and changes culture. One of the most important functions of religions is to unite their members around a common belief. People who share the same belief look at the world from the same window and think that they see the same things through that window.  It is stated that, thanks to religious belief, people are relieved significantly by means of emotional comfort and calmness, coping with death anxiety and seeking wisdom in their illnesses.  In order for nurses to know how the individual's religious beliefs will affect their care; they are expected the relationship between religion, culture and health. Westbeerg proposed an innovative nursing role for faith communities in the mid-1980s, and interest in this area has grown exponentially over the past 25 years.In this review, it is proposed to develop the field by creating a conceptual framework for the field of "Interreligious Nursing", which is based on religion integrated care.
 
Özet
Din, kültürü etkileyen, değiştiren ona süreklilik kazandıran temel unsurlarından birisidir. Dinlerin en önemli işlevlerinden birisi mensuplarını ortak bir inanç etrafında birleştirmeleridir. Aynı inancı paylaşan insanlar dünyaya aynı pencereden bakar ve o pencereden aynı şeyleri gördüklerini düşünürler.  Dini inanç sayesinde insanların duygusal bir rahatlık ve sakinlik yaşadıkları, ölüm kaygısıyla başaçıktıkları ve hatta geçirdikleri hastalıklarda bir hikmet olduğunu düşünerek rahatladıkları belirtilmektedir. Hemşirelerin, bireyin dini inançlarının bakım sürecini nasıl etkileyeceğini bilmek için; din, kültür ve sağlık ilişkisini bilmeleri beklenmektedir.  Westbeerg'in 1980'lerin ortasında iman (inanç) toplulukları için yenilikçi bir hemşirelik rolü önermiş ve son 25 yılda bu alana ilgi katlanarak artmıştır. Bu derlemede dinin entegre adildiği bakımı esas alan “Dinlerarası hemşirelik” alanına yönelik kavramsal çatı oluşturularak, alanın geliştirilmesi önerilmektedir.
A Multi-Dimensional Model of Israeli Travelers’ Experience in Duty-Free Stores
Authors: Gavish Iris , Gavish Yossi , Shoham Aviv
Published: June 2021

Travelers’ duty-free shopping represents an under-researched consumption behavior with far reaching management and marketing implications. This study explores the extent to which three surface personality traits (impulsiveness, shopping involvement, and escapism) mediated by store atmosphere, store temptation, and shopping enjoyment, lead to buying in duty-free stores. A convenience sample of 163 Israeli adults in Israel’s Ben-Gurion International airport was used. A SEM-PLS model was used to analyze the relationships among the model’s constructs. The model supports the positive impacts of traits impulsiveness, shopping involvement, and escapism on buying behavior in duty-free stores, mediated by store atmosphere and store temptation (shopping enjoyment only affecting store temptation). A post-hoc analysis showed a positive relationship between store atmosphere and store temptation. This paper contributes to the literature by developing and testing an integrative model with important implications for tourism and hospitality industries. Deriving from the findings of this study, it behooves managers of stores and centers to promote the environmental sustainability aspects of the products sold in these stores.
Flexible Work Arrangements Program Implementation Evaluation
Authors: Sa Yongjin
Published: June 2021

This research primarily focuses on construction of the program evaluation proposal for the flexible work arrangements. In order to make the program evaluation design, this paper specifically discusses evaluation questions and data collection analysis regarding three kinds of evaluations including needs assessment, implementation evaluation, formative evaluation, and summative evaluation. Furthermore, the expected positive effects and main functions of the flexible work arrangements program evaluation are also suggested.
Compulsive behaviors in the workplace
Authors: Deciu Valeriu
Published: June 2021

Compulsive behaviors are psychiatric challenges that interfere with the regular life practices of those who exhibit them. This study qualitatively identified compulsive behaviors within three organizations located in no.2 major cities from Romania, aiming to explore their effects on workers' productivity and extended community, including coworkers and employers. To understand the exact behaviors, a literature search was done from Google Scholar to understand examples of compulsive behaviors in the workplace before gathering data from the participants. Using three organizations, from construction materials and adjacent industries, 15 participants were selected and agreed to be interviewed. Further, a survey questionnaire was used to explore the severity and effect of the behaviors on productivity at work. The main results noted workplace compulsive behaviors like repetitive cleanliness, ritualistic behaviors like repetitive ordering or organizing things in a particular manner, persistent repetition of certain words or actions for the perfection of the work assigned, and isolation from other members. The findings from the results entailed an understanding that most compulsive behaviors conflict with established workplace code of conduct. Also, employees confirmed their continued struggle to control the exhibited behaviors. The effects of the behaviors on the employees' productivity and time management were also highlighted. Importantly, most participants confirmed that most employers and coworkers understand their situations and provide social support.
Developing linguistic and cultural competence: participants' evaluation of a Maltese language and culture awareness program
Authors: SCHEMBRI NEVILLE
Published: June 2021

Malta is facing an increasing demand and decreasing supply of local nurses and engagement of culturally and linguistically diverse (CALD) personnel is becoming the main solution to mitigate such problems.  The case study examines the perceptions of CALD nurses about the content and utility of a Maltese language and culture awareness program. A qualitative methodology was adopted and data collected through focus group interviews  conducted with sixteen (16) participants. Qualitative content analysis using Framework Method  was used to analyse the data.

Views on the training program have been divided between elements related to individual utility, service user utility, quality of delivery and areas for improvement. The results indicate that training can provide significant advantages in terms of enhancing cultural competence and cross-cultural encounters amongst CALD nurses working in elderly long term care and it is recommended that such programs are encouraged to be taken on board by organisations operating in similar health and social care services.
Transient Luminous Events, into the Stratosphere and the Mesosphere, observed during violent thunderstorms lightning, are explained thanks to laboratory jets of photons in air, occuring during emission of Gravitational Quanta
Authors: POHER Claude , POHER Danielle
Published: June 2021

Abstract : A Gravitational field emitter, as we patented in 2006, is composed of an “active” material squeezed between two metallic electrodes. The active material is superconducting, with conductive or insulating grains added inside, to get local electric fields during brief electric discharges made into that emitter. Along such a discharge, the emitter propels itself, by anisotropic re-emission of interacting Gravitational Quanta. These emitted quanta accelerate distant matter particles placed along their trajectory. With early YBCO superconducting material emitters, cooled down by liquid nitrogen, we observed systematically a bright emission of light into the bath. This light emission is caused by nitrogen molecules’ ionization by gravitational quanta push. In 2012, the partial superconducting behavior of natural Graphite, at room temperature, was discovered, so we built new emitters from Graphite. These shown the same propelling effect as the early ones made of YBCO, with a lower performance. Here we record and discuss light emission in the form of jets of photons, in air, at room temperature, and pressure, during strong electric discharges into Graphite based emitters. These results enhance the confirmation of predictions from our theoretical Quantum model of Inertia and Gravitation. They explain also the enigmatic Transient Luminous Events observed in the atmosphere over thunderstorms clouds.
The effect of Chinese EFL students’ learning motivation on learning outcomes within a blended learning environment
Authors: Peng Renzhong , Fu Rongrong
Published: June 2021

The purpose of this study was to explore the relationship between Chinese English as a foreign language (EFL) students’ learning motivation and learning outcomes in a blended learning environment. A questionnaire was administered to 960 EFL students, and 10 of them participated in an interview. Following a series of analyses on the data collected through the questionnaire, consisting of exploratory factor analysis, reliability analysis, descriptive analysis, and correlation analysis, a structural relationship model that integrated learning motivation and learning outcomes was developed and tested. The results reveal that both intrinsic motivation and extrinsic motivation have a positive relationship with learning outcomes within a blended learning environment, both of which are conducive to improving students’ English linguistic competence and facilitating their psychological development of English learning. Moreover, intrinsic motivation is more important than extrinsic motivation. In intrinsic motivation, intrinsic interest in English and the intrinsic goal of understanding English culture are the two most important motives. Based on these results, implications and recommendations for future research are provided.

 

Implications for practice or policy:

Foreign language educators should consider the stimulation of students' learning motivation as the main task in blended courses.

Foreign language educators should pay more attention to the development of students’ intrinsic motivation than extrinsic motivation to produce more favourable learning outcomes in blended courses.

Foreign language educators should focus on developing students’ intrinsic interest in foreign language and culture in terms of the cultivation of students’ intrinsic motivation in blended courses.
Die Zivilgesellschaft in der Krise
Authors: Hutter Swen , Teune Simon , Daphi Priska , Nikolas Ana-Maria , Schäfer Ines , Sommer Moritz , Steinhilper Elias , Zajak Sabrina
Published: June 2021

Dieser Beitrag präsentiert erste Einblicke in eine Organisationsbefragung zur Auswirkung der COVID-19 Pandemie auf Vereine und Initiativen in Deutschland. Die Studie unterstreicht, dass die Zivilgesellschaft mit großer Wucht getroffen wurde und weitreichende, negative Auswirkungen der Pandemie zu verzeichnen sind. Dennoch zeigen die Ergebnisse ebenfalls, dass sich Teile der Zivilgesellschaft der pandemischen Entwicklung anpassen und ihre Handlungsfähigkeit aufrechterhalten konnten. Besonderes Augenmerk wird in dem Beitrag auf Muster der (De-)Aktivierung sowie die Digitalisierung zivilgesellschaftlicher Akteure in der Krise gelegt.
Inhibiting PDE7A Enhances the Protective Effects of Neural Stem Cells on Neurodegeneration and Memory Deficits in Sevoflurane-Exposed Mice
Authors: Huang Yanfang , Chen Yingle , Kang Zhenming , Li Shunyuan
Published: June 2021

Sevoflurane is widely used in general anesthesia, especially for children. However, prolonged exposure to sevoflurane is reported to be associated with adverse effects on the development of brain in infant monkey. Neural stem cells (NSCs), with potent proliferation, differentiation, and renewing ability, provide an encouraging tool for basic research and clinical therapies for neurodegenerative diseases. We aim to explore the functional effects of injecting NSCs with phosphodiesterase 7A (PDE7A) knock-down in infant mice exposed to sevoflurane. The effects of PDE7A in NSCs proliferation and differentiation were determined by cell counting kit-8 (CCK-8) assay and differentiation-related gene expression assay, respectively. The effects of NSCs with modified PDE7A on mice’s long-term memory and learning ability were assessed by behavioral assays. Our data demonstrated that depleting PDE7A promoted, whereas forcing PDE7A suppressed the activation of cAMP/cAMP-response element binding protein (CREB) signaling as well as cell proliferation and neuronal differentiation of NSCs. Inhibition of PDE7A in NSCs exhibited profound improved effects on long-term memory and learning ability of mice exposed to sevoflurane. Our results for the first time show that knock-down of PDE7A improves the neurogenesis of NSCsin vitroandin vivo, and is beneficial for alleviating sevoflurane-induced brain damage in infant mice.
The Experimental Multispecies Household
Authors: Coen Deborah R.
Published: June 2021

Under what conditions have people in the past come to arrange their domestic lives more intentionally, and what role have the sciences played in this process? To address this question, this essay examines the transformation of human homes into experimental sites for the study of animal behavior. Between 1880 and 1920, the “insectarium” became both a popular toy and a key tool for the scientific study of the social insects. At the same time, social change and feminist politics were calling into question bourgeois norms of domesticity. In this context, the enterprise of domestic entomology took the rigid, seemingly timeless idea of a “natural home” and transformed it into a research question: how malleable were insects’ home-making instincts? The essay argues that the idea of behavioral plasticity as it emerged in entomology circa 1900 reflected and informed an experimental, multispecies approach to human homemaking. In this way, the essay demonstrates the value of studying the history of science together with the history of private life.
Utjecaj financijskog trenja na razvoj i opstanak srednjih poduzeća u Republici Hrvatskoj
Authors: Brlečić Valčić Sonja
Published: June 2021

Financijsko trenje kao poveznica povrata financijskog kapitala, tj. povrata kapitala i imovine, troška kapitala koji plaćaju poduzeća i iznosa koji ulagači zarađuju od financijskih zahtjeva, u ekonomskoj se teoriji rijetko koristi i uvodi u politiku financijske analize, uglavnom monetarnih vlasti.

Dosadašnja istraživanja o tome ukazala su na potrebu uvođenja takvih modela u financijsku analizu, uglavnom radi ispitivanja potrebe za povećanjem priljeva raspoloživoga kapitala po prihvatljivim stopama. U ovome radu predložen je drugačiji pristup ovom problemu, tj. na uzorku financijskih podataka za pet poslovnih godina pedeset srednjih hrvatskih poduzeća, primjenom modela temeljenih na ANFIS-u, analiziran je utjecaj financijskog trenja na razvojni potencijal poduzeća. U definiciji modela korištene su varijable povrat imovine (ROA), povrat na kapital (ROE), koeficijent vlastitog financiranja, faktor zaduženosti i EBITDA marža. Provedena analiza može poslužiti poduzetnicima u pronalaženju optimalnih omjera financijske poluge za održivo poslovanje okrenuto razvojnim strategijama, ali i kreatorima politike u definiranju potrebe za subvencioniranjem kamatnih stopa na poslovne zajmove.
Viscoelastic Properties of Filled Polyurethane Auxetics
Authors: Shevchuk T.M. , Bordyuk M.A. , Krivtsov V.V. , Kukla V.V. , Mashchenko V.A.
Published: June 2021

The paper presents experimental values of lateral and extension transmission ultrasonic waves speed and their absorbance coefficient obtained with the help of discrete immersed method in metal filled polymer auxetic samples with polyurethane matrix. Poisson’s ratio, real and imaginary parts of complex dynamic elastic modulus (Young’s modulus, shear modulus, bulk modulus) and mechanical losses tangent of angle for extension, lateral and bulk deformation have been calculated regarding paper’s results. Viscoelastic properties of polyurethane auxetic have been examined regarding different theoretical approaches. To support negative values of Poisson’s ratio, a filled polymer model with critical filler amount and auxetic deformation models have been used. Models structural characteristics for filled polyurethane auxetics have been defined. Systems modeling with solid bulky inclusions, that are able to absorb and to disseminate ultrasonic waves, enables to consider suchlike systems as complex density materials. It is shown that in certain ratio of wave parameters and environment structural and mechanical properties, resonance effects take place, regarding filler’s particles vibration as inclusions in general.
Problems and Improvement Strategies of Chinese Rural Elementary School Students’ Extracurricular Practice
Authors: Zheng Suqin , Yuan Suojun , Zhou Longjun
Published: June 2021

Extracurricular practice is an activity that promotes the overall development of students and continues the content of classroom teaching. How to realize the effective development of extracurricular practice is a complex educational problem. When students face a boring and single classroom form, extracurricular practice will play a vital role in realizing the comprehensive development of students’ morality, intelligence, physical education, and art. According to observation and literature analysis, it is found that rural elementary school students participate in less extracurricular practice and are closely related to students, parents, and schools. Teachers’ and parents’ excessive demands on academic performance have become the main reason for less extracurricular practice. Further analysis of the reasons, including the low salary of teachers, limited teaching and training opportunities; the effect of extracurricular practice is not proportional to the investment; the practice results are difficult to unify the standard; the rural extracurricular practice lacks sufficient financial support. Based on this, we suggest trying to put forward some suggestions to promote the development of extracurricular practice from the aspects of understanding of extracurricular practice, course structure, homework form, feedback results, urban and rural resources, etc.
Sogni, cinema e rovine
Authors: Trapanese Elena
Published: June 2021

In questo testo analizziamo le riflessioni che la filosofa María Zambrano sviluppò, durante i suoi soggiorni a Roma, su due temi principali: il cinema, e  in particolare il neorealismo italiano; i sogni ed il sognare come dimensione fondamentale dell’essere umano.
Los juicios de proporcionalidad en la teoría moral y jurídica de la escolástica española aurisecular
Authors: Miranda Montecinos Alejandro
Published: June 2021

En este trabajo se estudian los criterios utilizados por los moralistas y juristas de la escolástica española (siglos XVI y XVII) para efectuar juicios de proporcionalidad. El autor procura mostrar que los escolásticos efectuaron importantes aportes para el desarrollo de una teoría que, reconociendo la inconmensurabilidad de los bienes y males humanos fundamentales, acepta que es posible realizar comparaciones que permitan hablar de bien (o mal) mayor o de bien (o mal) menor.
mutabilidad del Derecho natural
Authors: Grande Yáñez Miguel
Published: June 2021

La evolución del Derecho natural facilita su aproximación a la Hermenéutica jurídica. Ahora bien, esto se tornaría más delicado en una concepción clásica inmutable como la que defiende sólidamente Francisco Suárez, o incluso con un iusnaturalismo excepcionalmente mutable como el de Santo Tomás. En cualquier caso, la epistemología de la subjetividad hermenéutica y el sentido como profundidad del espíritu dificultan o imposibilitan el encuentro entre el pensamiento hermenéutico jurídico y el Derecho natural, aun mutable.
Paralelismos y tensiones entre Ernst Bloch y Walter Benjamin: concepciones del tiempo y redención en aras de la revolución en la disyuntiva entre utopía o mesianismo.
Authors: Acosta Iglesias Lorena
Published: June 2021

El cometido de este artículo es explorar algunos de los paralelismos y tensiones entre el concepto de utopía en la obra El espíritu de la utopía (1918) y años más tarde el concepto de asincronicidad —Miguel Salmerón, traductor al castellano de Erbschaft dieser Zeit, prefiere el término asimultaneidad— [Ungleichzeitigkeit] en la obra Herencia de esta época (1935) de Ernst Bloch y, por otro lado, el mesianismo político articulado tanto en el Fragmento teológico-político (1920-21) así como, mucho más tarde, en el Konvolut N de la Obra de los Pasajes y el texto Sobre el concepto de historia (1940) de Walter Benjamin.
Automatic Makers as a Source for Olympiad Tasks
Authors: PANKOV Pavel S. , IMANALIEV Taalaibek M. , KENZHALIEV Azret A.
Published: June 2021

Automatic maker is meant as a device to produce (or compose) things by itself, by
a model, customization or a program. Nowadays the most advanced automatic makers in mass use are 3D-printers.The purpose of the paper is to present methods of generating various Olympiad tasks by using evident images of virtual automatic makers. As a perspective, production (performing) of processes is also considered (as automatic 4D-makers). Besides of the main operation: putting a pixel (voxel), the following primitives with virtual things can be involved: cutting; gluing; putting a building block; erasing a building block; copying a fragment, (for 4D-) shifting a building block. Tasks are generated naturally: to make a given thing (perform a given simple process) optimally in any sense (with respect to time; to number of primitives; to number of building blocks etc.). Such tasks are well-understood, have short formulations and are difficult to be solved even with initial data of small volume; a “brute force” method is either inapplicable or gives too overestimate of complexity.
Reviews of Two Programming Books
Authors: LAAKSONEN Antti
Published: June 2021

In this article I review two recent competitive programming books, published in 2020,
which have not yet been presented in the Olympiads in Informatics journal. The books
are Algorithmic Thinking by Daniel Zingaro and Competitive Programming in Python
by Christoph Dürr and Jill-Jênn Vie.
Both the books are introductory books but their approaches are different. Algorithmic
Thinking focuses on the process of learning algorithmic problem solving and uses competitive programming problems as motivating challenges. Competitive Programming in Python develops skills for programming contests and job interviews, and shows how the
Python language can be used in competitive programming.
Mapping of the descriptive logic into RDF using binary relational data model
Authors:   Institute of Software Systems NAS of Ukraine, Chystiakova I.S.
Published: June 2021

This paper is dedicated to the data integration problem. To establish relationships between data models is one of the key tasks in this solution. The descriptive logic and the relational data model are at the heart of a study. They have been used to create a mapping method on the theoretical level. The binary relational data model has been developed as a part of a mapping method. The previous studies are continued in this paper to prove on practice a mapping creation method between the descriptive logic and the binary relational data model. The method uses the binary relational data model as an integrating model. This paper continues the previous research of practical implementation of the mapping creation between the descriptive logic and the binary relational data model. The task to prove the theoretical mapping method on practice was formulated. A question how to map the binary relational data model into RDF-triples was considered. A brief overview of the R2R ML conversion tool was given. Triple maps were created to convert a conceptual information model of descriptive logic into RDF triplets with the help of R2R ML. Also, triples maps are described to convert basic mapping mechanisms into RDF with the help of R2R ML.
Some Manifestations of Vindictive Behavior in Pedagogical Discourse
Authors: Zavrazhin Sergey A. , Fomina Marina M.
Published: June 2021

Introduction. The problem of vindictive behavior in modern pedagogy is poorly studied both at the theoretical and empirical level. It is only indirectly touched on in studies on disciplinary measures in the educational environment, the prevention of non-normative activity of children.The aim of the research is to learn the genesis of the problematization of vindictive activity in a pedagogical format, as well as to study experimentally the features of vindictiveness of at-risk adolescents.
Materials and Methods. The empirical part of the article highlights the results of an experiment to detect the features of vindictiveness in adolescents at risk using a questionnaire and diagnostics of the “Scale of resentment and vindictiveness” (E. P. Ilyin, P. A. Kovalev). 50 people took part in the survey. The authorʼs questionnaire includes an associative experiment to determine the semantic field of the concept of vindictiveness and a method for analyzing situations. The questionnaire “Scale of resentment and vindictiveness” involves determining a personʼs tendency to hostility through resentment and vindictiveness, by collecting questionnaire data-responses.
Results. According to the results of an empirical study, it was revealed that the vindictive activity of adolescents in the social risk group is a form of manifestation of frustration-driven conscious hidden aggression. In general, adolescents of the risk group are characterized by a high level of vindictiveness; gender differences in the description of the phenomenon are determined: underage students of rehabilitation centers are more prone to resentment, while male students are more prone to hostility.
Discussion and Сonclusion. The obtained results contribute to the development of the ideas about the determination of the vindictive behavior of minors in the social risk group, enrich pedagogical knowledge with the methodology for identifying destructive forms of establishing justice in young people.
Substantiation of the Parameters of a Soil Tillage Machine Ripper
Authors: Syromyatnikov Yuriy N.
Published: June 2021

Introduction. Production of safe food requires the avoidance of using chemical means to bring weeds under control in cultivating crops. Existing tillage loosening and separating machine PRSM-5 Dokuchaevskaya optimizes the physical and mechanical state of the cultivated soil layer, while the weeds are carefully removed from the soil by combing out together with the whole weed root system and laid on the surface, where they dry up under the influence of climatic factors. During the operation of the tillage machine, about 30% of the total energy consumption is spent on the rotor drive. Therefore, this machine is not working satisfactorily in firm soils.
Materials and Methods. The soil was considered as an elastic-plastic medium. The generalized Hookeʼs law model and a variant of the plastic flow theory were taken into account. To simplify the calculations, there was used the experimental study information on the position in space of the soil deformation surface. The intensity of stresses of polyplastic deformations of the soil layer was determined. For the numerical solution of the problem, the Ritz method was used.
Results. In connection with the indicated disadvantages, the parameters of the rotor ripper are justified taking into account the reduction in energy consumption for its drive. As a result of solving the problem by the Ritz method, the geometric shape of the rotor ripper was determined. The energy performance of the section of the tillage machine was evaluated by the torque of the rotor drive of the loosening-separating device. The rotor drive torque was determined for rippers with flat, convex, and concave profiles and for the profile substantiated during the study.
Discussion and Conclusion. The profile substantiated during the study provides the best conditions for transporting the soil at the initial moment of the rotor entry into the soil and the minimum energy consumption for its drive.
Improving the Efficiency of the Liquid Heater in the Pre-Start Preparation of the Internal Combustion Engin
Authors: Samikov Ruslan F. , Nigmatullin Shamil F. , Razyapov Makhmut M. , Kozeev Arseniy A. , Smolyanov Alexey V. , Galin Dmitriy A.
Published: June 2021

Introduction. In this article the study subject is the power supply system of the pre-start heater. The purpose of the study is to evaluate the possibility of using a thermoelectric generator to power the liquid preheater with optimization of the flow section of the thermoelectric generator heat exchanger.
Materials and Methods. It is proposed to use a thermoelectric generator as an additional energy source to reduce electric power consumption by a pre-start heater. In the course of the study, various structures of the flow section of the thermoelectric generator heat exchanger have been modeled. The thermal and hydrodynamic analyses were carried out in the software environment ANSYS Workbench, Solidworks Flow Simulation to develop the most effective design for the flow section of the thermoelectric generator heat exchanger
Results. An experimental installation was assembled and the dependence of the temperature modes of the pre-start heater on the output parameters of the thermoelectric generator was determined.
Discussion and Conclusion. It has been proved the possibility of reducing the power consumption of the vehicle battery during thermal preparation of the internal combustion engine by using a thermoelectric generator adapted to the power supply system of the liquid pre-start heater.
Fiscal policy effectiveness and risks in the development of Azerbaijan’s economy during economic shock
Authors: Guliyeva Shafa , Gadimli Nushaba , Azizov Yalchin , Hajiyev Zaur , Bayramov Sanan
Published: June 2021

The study aimed to empirically evaluate the effectiveness of fiscal policy in the context of the economic slowdown  in Azerbaijan caused by the COVID19 pandemic. Using the Granger test, causal relationships between fiscal indicators and indicators of macroeconomic development in Azerbaijan have been determined. Presented an integrated assessment of the development of the national economy under the influence of the fiscal policy in the country. Using the regression analysis, fiscal risks have been identified that have a destabilizing effect on the economy and aggravating its state during a period of economic shock in the short term. The hypothesis about the different influence of the values of the public expenditure multipliers on the economy, depending on their functional directions, has been confirmed. The structure of expenses of the state budget of Azerbaijan has been empirically optimized, increasing production expenses.
Person-centered approach effectiveness in Human Resource Management in the agriculture of Azerbaijan
Authors: Guliyeva Shafa , Sadigov Yunus , Guliyeva Narmin , Isayeva Leyla , Aliyeva Shahla
Published: June 2021

The purpose of this study is to substantiate employee value (EV) and its impact on labor productivity in agriculture using the example of Azerbaijan. Using a survey of employees in agricultural enterprises, personnel values have been determined that determine the level of labor productivity in agriculture. A factor structure of EV has been determined, which has the following form: basic moral values, values of self-development and self-realization, democratic values, hedonistic values, dedication, tolerance, and power factor. The modeling by structural equations method has been used to determine the relationship between the priority of EV, the level of consistency of the system of EV, and labor productivity. The study has determined that a stimulating effect on labor productivity is provided by an increase in the priority and development of moral values, democratic values, values of self-development and self-realization of employees. The development of hedonistic values, however, has a destabilizing effect.
O esvaziamento do texto e o controle das decisões jurídicas
Authors: Adeodato João Maurício
Published: June 2021

Resumo O artigo pretende investigar por que os textos da lei não estão aptos a controlar o discurso jurídico. Para isso situa o problema na filosofia retórica da linguagem e estuda a incompatibilidade entre discursos gerais e eventos individuais. Como a lei não consegue garantir o acordo hermenêutico, o artigo sugere a tese de que os significados de textos e eventos são institucionalizados por meio de procedimentos.
A amplitude axiológica da categoria trabalho: contra o trabalho (estranhado) e pelo trabalho (substancialmente livre)
Authors: Coelho Bruna da Penha de Mendonça , Matos Felipe de Souza
Published: June 2021

Resumo O artigo objetiva perquirir a amplitude axiológica da categoria trabalho, dada sua relevância para a compreensão dos processos de resistência social contra o estranhamento do trabalho humano. Investiga o conceito ontológico de trabalho, as circunstâncias histórico-sociais que caracterizam o trabalho sob o modo de produção capitalista, além da importância da reivindicação social por um conteúdo emancipatório para o trabalho humano.
Diagnostic accuracy of pelvic imaging for acute pelvic inflammatory disease: protocol for a systematic review and meta-analysis v1
Authors: Okazaki Yuji
Published: June 2021

Introduction Acute pelvic inflammatory disease (PID) is one of the most common causes of the acute abdomen at an emergency department. Women of reproductive age who present acute lower abdominal pain need gynecological examination for the diagnosis of acute PID. It is not well-known how accurate imaging modalities such as contrast-enhanced computed tomography (CT) and magnetic resonance imaging (MRI) are for the diagnosis. If these modalities have enough diagnostic accuracy, they can alternate diagnostic tools from the gynecological examination. Purpose The purpose of this systematic review is to evaluate the diagnostic accuracy of pelvic imaging for acute PID among women of reproductive age. Methods and analysis This systematic review was adhered to the Preferred Reporting Items for a Systematic Review and Meta-analysis of Diagnostic Test Accuracy Studies (PRISMA-DTA) statement. We will include all studies on the diagnostic accuracy of pelvic imaging for evaluating acute PID. The target participants are women of reproductive age with acute lower abdominal pain who are suspicious of PID and required gynecological examinations. The target condition is acute PID including any combination of endometritis, salpingitis, tubo-ovarian abscess, and pelvic peritonitis. We expect studies conducted in emergency settings. The index test is pelvic imaging as contrast-enhanced CT and MRI. The reference standard is gynecological examinations defined as examinations by gynecologists using standard diagnostic criteria with or without laparoscopy or transcervical endometrial biopsy. The quality of studies will be evaluated by QUADAS-2. We will present a summary table of evidence, estimates of sensitivity and specificity with 95% confidence interval, and a receiver operating characteristic (ROC). The meta-analysis will be performed using a hierarchical summary ROC model. Ethnics and dissemination Data from previously performed studies will be analyzed. We will publish this systematic review in peer-reviewed journals.
LANGUAGE MAINTENANCE IN AN INTERRACIAL MARRIAGE: THE CASE OF INDONESIAN FEMALES’ LANGUAGE CHOICE IN CANADA
Authors: Kadir Rahmawaty
Published: June 2021

This study aims to investigate Indonesian females’ language choice in their interracial family in the home domain and factors that contribute to their language choice. Ultimately, the study seeks to describe the influence of language choice on maintaining the Indonesian language amidst multilingual Canada.  Semi-structured interviews and observations were employed to collect the data. The participants of this study were three female Indonesians with their Canadian spouses living in Canadian cities.  The study revealed that English was chosen as the language spoken at home in each family despite having an Indonesian mother. Although all (Indonesian) mothers code-switch between the Indonesian language and English, the study discovered that the children are passive speakers of Indonesian, some do not even understand their mother language.  Social context and motivation are some factors that influence the participants’ language choice. The findings also indicate that language shifts from Indonesian to English were taking place in the participants’ repertoire.