bluuebunny/crossref_metadata_2025 huggingface dataset:
Solidão e qualidade de vida em brasileiras vivendo em Portugal
Authors: Nazaré Oliveira Eliany , Oliveira Lycelia , Ximenes Neto Francisco Rosemiro Guimarães , Martins Moreira Roberta Magda , Aguiar Ribeiro Marcos , Ferreira Lima Gleisson
Published: January 2020

Este pesquisa possui como tema qualidade de vida e solidão de imigrantes brasileiras vivendo em Portugal. Delinea-se com o seguinte objetivo: averiguar em que medida a solidão interfere na qualidade de vida e saúde de mulheres imigrantes brasileiras que vivem em Portugal. Estudo transversal conduzido de julho a setembro de 2016, em Portugal, com 682 imigrantes brasileiras maiores de 18 anos que viviam no país há mais de três meses. Os instrumentos utilizados foram um questionário sociodemográfico, a Escala de Solidão - UCLA e o questionário Medical Outcomes Study 36-item short-form health survey (SF-36). Ao fazer a correlação entre a Escala de qualidade de vida e saúde SF-36 e a Escala de solidão – UCLA, as evidências são de que as imigrantes brasileiras que apresentaram maior qualidade de vida, apresentaram menos solidão. Os resultados evidenciaram que a qualidade de vida e saúde quando estão em bom nível podem ser redutores da solidão. A qualidade de vida e saúde podem ser diminuída em situações onde a solidão for preponderante.
Cognições Gerenciais sobre Práticas Gerenciais Inovadoras e Gestão de Pessoas
Authors: Pinho Ana Paula Moreno , Silva Mara Rosália , Ramos Nathaia
Published: January 2020

O objetivo geral desta pesquisa é analisar o contexto da gestão de pessoas e a inovação gerencial em uma empresa de comunicação, através da percepção de seus gestores. Foram estabelecidos os seguintes objetivos específicos: identificar mudanças ocorridas na área de gestão de pessoas, analisar a percepção de gestores a respeito das ações gerenciais que indicam inovação e analisar a relação entre o contexto da gestão de pessoas e da inovação gerencial. A metodologia usada para a coleta de dados foi qualitativa, com a aplicação de entrevista semiestruturada em 6 sujeitos, todos em alto cargo de gerência dentro da empresa. Para a análise dos resultados, foi realizada análise de conteúdo. As cognições gerenciais revelaram que as inovações estão presentes nas ações dos gestores e no processo evolutivo da gestão de pessoas da empresa. Também, foi observado a necessidade de alinhamento dos arranjos internos da empresa a fim de possibilitar o alcance das expectativas dos seus stakeholders. Este artigo busca colaborar na forma como gestores podem implementar práticas que promovam a evolução da gestão de pessoas na organização e estimulem a criação de inovações gerenciais. Soma-se a isto o melhor entendimento da dinâmica gerencial de uma empresa de comunicação, que enfrenta o desafio de produzir informações de valor para os clientes e manter-se competitiva no mercado.
Prematuridade e Paternidade: Um Estudo de Revisão Sistemática
Authors: Teixeira Kanopf Darrif Luana Dara , Bortolin Denice , Tabaczinski Carine
Published: January 2020

Objetivou-se com o presente estudo, mapear e compreender os sentimentos vivenciados pelo pai em casos de nascimento de filho prematuro internado em uma Unidade de Terapia Intensiva Neonatal (UTIN). Para isso, realizou-se uma busca e análise dos artigos, incluindo pesquisas nas bases eletrônicas Scielo, Psyclnfo, Pepsic, PubMed, Scopus e nos portais Capes e BVS, nos meses de junho e julho de 2018. Foram incluídas publicações compreendendo o período de 2008 a 2018 com o uso de termos padronizados e previstos pelo DECS e Mesh Terms: premature, paternity e neonatal intensive care unit. Foram incluídos na pesquisa os artigos publicados em revistas científicas no intervalo dos últimos dez anos, em língua portuguesa, inglesa e espanhola. Pesquisas que examinavam o papel do pai em uma Unidade de Terapia Intensiva Neonatal (UTIN) foram inclusas. Concluiu-se que, profissionais da enfermagem possuem maior interesse em pesquisar a respeito do papel paterno em contextos de prematuridade. Estes estudos verificaram que os pais (homens), integrantes das pesquisas, relataram sentimentos de surpresa e medo quanto ao nascimento do filho prematuro, estes mesmos pais queriam estar inseridos nos cuidados do recém-nascido internado, e por fim descobriram seu verdadeiro papel como pai.
Wit Stwosz jako „figura autobiograficzna” Wincentego Pola
Authors: Kubski Grzegorz
Published: January 2020

Wincenty Pol, człowiek pochodzenia niemiecko-francuskiego, bohaterski powstaniec listopadowy, uznany twórca poezji patriotycznej, więzień w 1846 r., mężczyzna tracący wzrok, na skutek pomówienia w 1851 r. został pozbawiony stanowiska profesora Uniwersytetu Jagiellońskiego, a jednocześnie nasiliła się krytyka jego poezji. W 1854 r. ukazał się jego poemat Wit Stwosz – autobiograficzne wyznanie ociemniałego geniusza średniowiecznego, a zarazem Polaka w obcej mu Norymberdze. Utrwaliło się odczytanie tego poematu jako autobiograficznej wypowiedzi samego Pola.Nie ulega wątpliwości, że poemat jest poetycką adaptacją francuskiego gatunku biografii artysty, tzw. livret. Fikcjonalna fabuła poematu Pola skłania do poszukiwania „figury autobiograficznej” (Philippe Lejeune). Lecz taka interpretacja być może jest tu tylko wtórnym nałożeniem literackich stereotypów romantyzmu, czyli „literaturą w funkcji negatywnej” (Wolfgang Iser). W istocie bowiem u Pola nie to co aktualne i jednorazowe, nie „ja” jako uniwersum, lecz uniwersum sztuki i religii ma być kontemplowane.
Ciężki los łagodnego naukowca Piotra Bohdana Krypiakiewicza
Authors: Rudenko Oleh
Published: January 2020

Artykuł poświęcony jest jednemu z fundatorów szkoły krystalochemicznej na Uniwersytecie Lwowskim Bohdanowi Piotrowi Krypiakiewiczowi (1923–1980), synowi wybitnego ukraińskiego historyka. Przez całe swoje życie naukowe walczył ze skutkami nieuleczalnej w tym czasie choroby (poliomyelitis), na którą zapadł podczas studiów. Mimo iż był ciężko chory, nie tylko skończył uniwersytet, ale obronił doktorat, następnie zrobił habilitację. Pracował na uniwersytecie, prowadząc seminarium dyplomowe i spotkania ze studentami w domu. Dbał o poziom wykształcenia, wspierał młodych, czytał, redagował monografie, referaty z krystalochemii i krystalografii, publikował wyniki badań w czasopismach. Oprócz tego był bardzo szlachetny, posiadał pogodę ducha i nigdy nie wykazywał innym, jak bardzo cierpi.
Kresy Wschodnie ii rp kulturowym fundamentem biografii oraz duszpastersko-pedagogicznej i społecznej misji ks. Henryka Nowika (xx–xxi w.)
Authors: Małachowski Ryszard
Published: January 2020

Artykuł dotyczy ks. dr. Henryka Nowika urodzonego w 1933 r., w polskiej rodzinie religijnej i patriotycznej. Najpierw ministrant, w 1951 r. przyjęty do Wyższego Seminarium Duchownego w Gorzowie Wielkopolskim, w 1957 r. przyjął święcenia kapłańskie. W 1958 r. podjął studia filozoficzne na Katolickim Uniwersytecie Lubelskim. W 1966 r. uzyskał stopień naukowy doktora filozofii. Pełniąc funkcję proboszcza, prowadził działalność społeczno-patriotyczną. Na gruncie duszpastersko-wychowawczym: kapłańskim, społeczno-politycznym, jako kapelan, brał udział w protestach robotników polskich, był doradcą i kapelanem chłopów, inspirował obronę życia poczętego, duszpasterstwo pątnicze rolników. Ks. Nowik, „arystokrata ducha”, wrażliwy moralnie człowiek, uczony (teolog, biolog, filozof, pedagog), asceta, człowiek ducha modlitwy. Ukryta osobowość mistyczna, odznaczająca się nieczęsto spotykaną kulturą intelektualną i moralną. Zaangażowany w prace na rzecz „Ojczyzny”, Kościoła katolickiego, człowieka i społeczeństwa. Mimo ofensywy dyktatury relatywizmu w XX i XXI w. zaangażował do działalności kulturotwórczej setki oddanych Ojczyźnie i Kościołowi Polaków, w tym młodzież akademicką”. Dlatego w opinii społeczności Dolnego Śląska jest wzorem kapłana, podobnym do śp. Kardynała Stefana Wyszyńskiego, wielką osobowością, spowiednikiem i duszpasterzem-wychowawcą, krzewicielem historycznego ethosu Kresów Wschodnich i Zachodnich, patriotą, kontynuatorem i współtwórcą polskiej kultury narodowej, a przy tym wybitnym społecznikiem, godnym naśladowania przez ludzi świeckich i duchownych.
Recommendations' Impact on Customer Behavior and Visiting Catering Organizations
Authors: Pauliene Rasa , Tamasevicius Virginijus , Gaivenis Silvestras
Published: January 2020

In scientific literature the recommendation definition is often contradictory, which only shows how wide and diverse this field is. The impact of recommendations is becoming increasingly relevant, analyzing different customer target groups, segmented by demographic, geographic, psychographic, and consumer behavior criteria. The aim of the study is to analyze recommendations’ significance and impact on customers visiting points of sales. In order to achieve the aim a number of tasks are formulated: first, to form a conceptual model of recommendations’ impact on customers behavior and visiting points of sales; second, to carry out a quantitative study in order to identify statistically significant impact of recommendations on visiting catering organizations in integral sample of respondents as well as in different demographic groups. The study presents scientific literature review on social networks, online blogging, recommendation systems’ and informal word-of-mouth recommendations’ impact on customer behavior and visiting points of sales. Main research methods: comparative analysis of scientific literature, quantitative research – a survey. Summarizing empirical findings of the study it must be concluded that family members, friends and co-workers’ recommendations impact visiting catering organizations in the integral sample of respondents. Although advertising on radio, television and outdoor advertising influences the choice of the catering organization, such advertising does not necessarily encourage the frequency of visiting catering organization. However, recommendations on the range of dishes, interior of a catering organization as well as convenient billing and discounts for loyal customers have a positive impact on respondents’ visiting catering organizations.
Islamic versus Conventional Fiscal policy: The Effect of Zakat on Education and Employment
Authors: Raies Asma
Published: January 2020

Zakat is one of the pillars in Islam. It is the portion of a man’s wealth designed for the poor.  It is deemed to empower eight specific groups in society, i.e. the poor, the needy, those in debt, those in the wayfarer, the sympathizers, those in the cause of God, those in bondage and the fund administrators. The main goal of Zakat is to alleviate poverty through assistance to the poor and the needy and to achieve socioeconomic justice by closing the gap between the poor and the rich in the society. This paper focuses on the effect of Zakat on employment namely the effect of subsidising education of individuals who fulfil the criteria to be recipients of Zakat, thought taxing rich workers who are above Nisab, on employment. We also compare this Islamic policy (zakat) with the conventional one (namely subsidising education of all individuals by taxing their wages) used by most of countries and evaluates the effectiveness of both fiscal systems in reducing unemployment. We develop a theoretical neoclassic model showing that the conventional fiscal policy does not affect employment, which may justify the persistence of high unemployment rates observed in many developed and developing countries despite the massive public resources devoted to the education sector in these countries. The model proves that the Islamic fiscal policy will reduce unemployment.
Latin American Direction of Ukrainian Economic Diplomacy: The Overview of Successes and Failings
Authors: Khmel Anastasiia , Tykhonenko Iryna
Published: January 2020

In the article, the authors analyzed successes and failings of the Ukrainian economic diplomacy in Latin America region. Such results were achieved by analyzing the degree of scientific investigation the possibilities, features and basic characteristics of economic diplomacy by contemporary Ukrainian and foreign researchers, as well as by analyzing the websites of Ukrainian embassies in Latin American countries and using the information of the State Statistics Service of Ukraine and mass media. Researchers drew attention to the peculiarities of economic relations between Ukraine and Latin America countries. It has been found that bilateral relations between Ukraine and Latin American countries are generally poorly developed, the embassies of Ukraine exist only in five countries: Mexico, Cuba, Argentina, Brazil and Chile, and these embassies in turn represent Ukraine’s national interests in 15 other Latin American countries. Ukraine has the most well-established economic relations with the first five above-mentioned countries as a result of economic diplomacy. It was concluded that Ukrainian economic diplomacy has some achievements (the developing of volume of export-import operations between Ukraine and all regional countries, except Cuba, and the opening of the honorary consulate in Chile) and failings (the lack of diplomatic missions in all LA countries, problems with updating information on planned activities in the economic sphere (2015, 2016) on the embassies’ web-site, negative trade balance for Ukraine).
Rebranding the Electoral Process in Nigeria’s Fourth Republic (1999-2019): Constraints and Prospects of the Independent National Electoral Commission
Authors: Ajagba Caleb Okezie , Gberevbie Daniel Eseme , Agbu Osita
Published: January 2020

Nigeria continued to dominate both national and international political discourse as a model of democracy for the rest of Sub-Saharan Africa immediately after the successful conduct of the 2015 general elections that saw for the first time peaceful conduct of elections and transition from one civilian administration to the other and which brought the opposition party to power without violence or bloodshed.  However, following the conclusion and outcome of the 2019 general elections, the perception of Nigeria has changed from being a beacon of hope for democratic Africa to being an amazement to Political scholars and commentators who find it difficult to unravel how she failed to consolidate the gains of the 2015 general elections and to emerge stronger as a democratic nation. This study leverages the governance approach, and explores the need to rebrand the electoral process for enhanced democratic governance in Nigeria. It examines the need for a healthy synergy between the electorate, the political class, political parties and the institutions of government for inclusive nation building. It adopts both the qualitative and quantitative methods of research in its exploration between 1999 and 2019. It takes a critical look at what has become characterized as Nigeria’s ‘brand of politics’- which is essentially corrupt, violent, and manipulative of the wishes of the people. The work argues that except the electoral process is rebranded in line with acceptable international best practices of democratic culture where the will of the people is seen to prevail, political apathy may persist.
The Approach to Safety of Children’s Toys in United States and European Union: A Comparative Study
Authors: Ismail Rahmah , Haniff Wan Amir Azlan Wan , Isa Suzanna Mohamed , Fadzil Rozlinda Mohamed , AlSagoff Syed Sagoff , Talib Khalid Kartini Aboo
Published: January 2020

Following the ‘Year of Recall’ in 2007 which saw greatest number of children’s toys product recalls from United States of America (US) and European Union (EU) markets, both regions instituted new legislations governing children’s products: the US Consumer Product Safety Improvement Act of 2008 (CPSIA 2008) and EU 2009 Toy Safety Directive. This article analyses the approaches to safety of toys adopted in US and EU in light of the potential for cross-jurisdictional use of the framework. This qualitative research utilizes secondary data gained from scientific database analysis and library research, including documents and precedents on toys safety. These data were analyzed by using legal interpretation and comparative assessment. The study finds key features of each jurisdiction as well as notable similarities and differences in terms of regulations, safety standards used such as International Organization for Standardization (ISO 8124); The American Society for Testing and Materials (ASTM F963); and European Standards (EN 71). Further, two competing systems, each with its own reigning global governor namely, Third-Party Assessor (3PA) supported by the US and Supplier’s Declaration of Conformity System (SDOC) adopted by the EU, were assessed. When both systems were put into an evaluation, the extra third-party inspection for issuing certificate on the product based on 3PA enable to provide important protection to consumers over the SDOC system.
Oral History: An Unpredictably Effective Strategy for Teaching ESL to Saudi Arabian Students
Authors: Strachan Laura M. , Winkel Carmen
Published: January 2020

For more than thirty years, collecting oral histories has been recognized as an effective teaching strategy in the West. Although it is rare in Gulf Cooperative Council (GCC) countries, the authors adopted it to bridge knowledge gaps they observed in their Saudi Arabian students. The reclamation of familial stories and tribal information using oral history methodologies reconnected students to their past while facilitating a unique learning experience. This paper describes how an oral history project was created for undergraduate students in Saudi Arabia to help them move beyond the hard science approach supported in the Arabian world to one that embraces a narrative based methodology. Historically, oral histories – an important pillar of Arabian society - were used to transfer significant tribal information, customs, traditions and stories from one generation to the next. Since the discovery of oil, the kingdom has undergone dramatic societal and lifestyle transformations resulting in the loss of some traditions, namely oral history. Consequently, younger generations know very little about their Arabian heritage. The fundamental goal for this project was to improve the students’ comprehension of humanities and social science courses by reconnecting them to their past using oral history methods.
Theory of Differential Association
Authors: Maloku Ahmet
Published: January 2020

In the broad spectrum of criminological theories on the causes of deviant behavior, sociological theories of criminality involve particular importance. These theories, the causes of such behaviors are only seen in the conditions and social interactions of the individual in their environment. However, with scientific explanations about the causes of criminal behavior, special place has the theory who gives a special importance to the delinquent's interaction with its environment. This is known as theory of various associations or more commonly known as the theory of differential association. The creator of this theory is the famous American sociologist and criminologist Edwin Sutherland, who has left indelible imprints on the relatively short but very important tradition of American criminological theories of criminality. The famous creator's lessons have been taken and modified by many prominent criminologists in their reviews of criminal etiology. As a result this lesson has also been the basis for numerous subsequent empirical research on criminal behavior. In this paper, using the comparative, theoretical, and meta-analysis methods, will be presented the views of some criminology authors and their interpretation of Sutherland's lessons on differential association. Due to this, a brief section of some empirical studies of delinquent behaviors based on E. Sutherland's lessons will be presented, and also the final discussion on these issues will be discussed.
Social Media Centrality in Identity (Re)construction in Higher Education
Authors: Sá Maria José , Serpa Sandro , Ferreira Carlos Miguel , Santos Ana Isabel
Published: January 2020

Social media, including digital social networks, runs through a large part of society. This position paper analyses the social media centrality in identity (re)construction in higher education, seeking to add to the understanding of the social media’s role in the identity, both in the individual dimension – of several higher education actors (academics and students) – and in the identity of higher education institutions. In methodological terms, a selection and review of publications addressing this topic were conducted. Results allow concluding that it is critical to consider the growing relevance of digital social networks in shaping these actors’ identity, without disregarding the individual situations of great limitation or even rejection by the presence of digital social networks in identity (re)construction. Regarding the implications, at the theoretical level and according to the existing corpus of knowledge, there is a need for further studies to deepen the understanding of this topic. As a practical implication, while the presence of digital social media in human relationships is unavoidable in many instances, the intentional and relevant mobilization of these digital social media is crucial, both for higher effectiveness and efficacy of the academic-student interaction and for the dissemination and positive image of higher education institutions and academics.
Informational and Psychological Influence on Student Youth in the Conditions of the Information-Psychological War
Authors: Habro Irina , Vovchyk Ludmila , Shevchuk Oleksandr
Published: January 2020

Peculiarities of informational and psychological influence on social consciousness as a destructive tool in the conditions of conducting the information-psychological war are considered in the article. The danger of informational and psychological influence on the citizens’ consciousness is that such influence changes the normal behavior of people, their reactions to the surrounding world. It makes the person's psyche vulnerable and encourages the individual to destructive actions against society. This is a danger not only for the psychological state of an individual member of society, but also for the whole country. The purpose of the study is to reveal the peculiarities of informational and psychological influence on social consciousness in the conditions of the information-psychological war. The research was conducted using the following methods: methods of mathematical statistics, experiment, prosopographical method. It was proved that the verification of information received from the media is not verifiable by representatives of student youth on the basis of the survey. Informational and psychological influence is an important tool for conducting the information-psychological wars and operations. It is seriously detrimental to social consciousness. Young people need special protection because the future of the country depends on them. It is noted that there is a need to develop mechanisms for protecting young people from negative informational and psychological influence. The media must submit proven information in a dosed form using a simple vocabulary. Government agencies should develop rules of work in the Internet space of the state, which will help to protect society as a whole, and student youth in particular, from the negative informational and psychological influence.
The Pragmatic Functions of the Discourse Marker Bas in Jordanian Spoken Arabic: Evidence from a Corpus
Authors: Al Rousan Rafat , Al Harahsheh Ahmad , Huwari Fadia
Published: January 2020

This study investigates the pragmatic functions of the discourse marker bas (Lit. But) in Jordanian Spoken Arabic. To this end, a corpus of 24 dyadic conversations, consisting of 93313 words were obtained from natural conversations of native speakers of Jordanian Arabic (males and females). 1113 instances of bas were identified in the data. This study is based on Fraser’s (2006) grammatical-pragmatic framework. Qualitative methods were employed to answer the question of the study. The analysis was based on the pragmatic functions introduced by Brinton (1996) and Fraser (2006). The data analysis reveals that the DM bas serves the following pragmatic functions in JSA: initiating a topic, signaling topic change, closing a turn, ending a conversation, indicating speaker’s hesitancy, mitigating Face Threatening Acts, making a correction, attracting hearer’s attention, expressing restrictions and conditions, showing disbelief and indicating a question, providing interpretation, showing contrast, expressing regret , showing agreement, indicating emphasis, and finally filling in gaps in an interaction. Finally, this study suggests that DMs in Arabic play a vital role in people’s daily communication; therefore, they should not be neglected by linguists.
Perceived Electricity Supply Prices for Political Socialization in Education: University Functionality in Cross River State, Nigeria
Authors: Ekanem Ekpenyong E. , Mbon Usen F. , Etor Comfort R.
Published: January 2020

This study examined electricity supply prices for political socialization in education and its implications for functionality in university education in Cross River State, Nigeria. The study was a descriptive survey research. The population included 942 head of departments in the two public universities located in Cross River State, Nigeria. Stratified sampling technique was used to select 250 respondents from the universities studied. The instrument designated ‘Electricity Prices For Political Socialization Questionnaire (EPFPSQ)’ was designed to collect data for the study. The instrument was validated and had a reliability co-efficient of 0.853. The data collected were analyzed using frequency counts and percentage score. The study revealed that electricity supply prices, through management techniques of cost effectiveness, cost efficiency, access to and control of education moderately empowered the university system for political socialization. Electricity prices showed inadequate contributions with weak impact on benefit-related factors for political socialization. Government did not provide support in electricity price reduction though encouraged investment in electricity supply through Power Holding Company Ltd (PHCN). It was concluded that the perception of electricity supply prices could guarantee political socialization towards functionality in university education. Some of the recommendations made were: universities should give attention to electricity supply prices for political socialization. Government should see electricity supply prices and political socialization as a sine-qua-non for functionality in university education.
DEVELOPMENT AND IMPLEMENTATION OF SUSTAINABLE DEVELOPMENT STRATEGIES OF TERRITORIES IN THE CONTEXT OF SELF-GOVERNMENT AND DECENTRALIZATION
Authors: Sivagrakau Aleg
Published: January 2020

The issues of development and implementation of regional and local sustainable development strategies in Belarus and Ukraine, their role in self-management and decentralization are analyzed. The author's algorithm for the formation of strategies for sustainable development of the territory (SSDT), a model for managing this process and implementing strategies, as well as recommendations for the use of relevant indicators are given.
Effect of External Calcium and other Divalent Cations on K+ Contractures in Denervated Slow Skeletal Muscle Fibers of the Frog
Authors: Hernández Leonardo
Published: January 2020

The influence of Ca2+ and other divalent cations on contractile responses of slow skeletal muscle fibers of the frog (Rana pipiens) under conditions of chronic denervation was investigated.Isometric tension was recorded from slow bundles of normal and denervated cruralis muscle in normal solution and in solutions with free calcium concentration solution or in solutions where other divalent cations (Sr2+, Ni2+, Co2+ or Mn2+) substituted for calcium. In the second week after nerve section, in Ca2+-free solutions, we observed that contractures (evoked from 40 to 80 mM-K+) of non-denervated muscles showed significantly higher tensions (p<0.05), than those from denervated bundles. Likewise, in solutions where calcium was substituted by all divalent cations tested, with exception of Mn2+, the denervated bundles displayed lower tension than non-denervated, also in the second week of denervation. In this case, the Ca2+ substitution by Sr2+ caused the higher decrease in tension, followed by Co2+ and Ni2+, which were different to non-denervated bundles, as the lowest tension was developed by Mn2+, followed by Co2+, and then Ni2+ and Sr2+. After the third week, we observed a recovery in tension. These results suggest that denervation altering the binding capacity to divalent cations of the voltage sensor.
Ways to improve the design of gear granulator presses
Authors: Boltianska N.
Published: January 2020

Purpose. Analyze gear press granulators in order to determine directions for improving their designs.
Methods. In the analysis of the gear presses-granulators used the methods of comparative and systemic analysis, synthesis, scientific generalizations, and the method of argumentation.
Results. The article analyzes the main works of scientists devoted to the study of work gear presses-granulators, identify ways to improve the performance and reliability of pellet press machine ring die, reducing energy consumption of the pelletizing process and the complexity of maintenance of the working bodies, providing the possibility of regulating the quality of the pellets revealed the complex structural and technological shortcomings.
Conclusions. The development of the structural and technological scheme of the gear press granulator should be aimed at the following: simplicity of design; providing quick access to its main components and parts for the convenience of replacing them; ensuring optimal operation with the ability to control performance; increasing its productivity and reducing the energy intensity of the granulation process.
Keywords: gear press granulator, design, granulation, enhanced performance, increased reliability, advantages, disadvantages.
The results of experimental studies of the force rolling resistance MEZ-330 “Autotractor”
Authors: Pogorily S.
Published: January 2020

Purpose. Determine the effect on the tire pressure of the wheels of the wheels and the condition of the wheelbase differential on the force of rolling resistance of the MEZ-330 “Autotractor”.
Methods. The studies were conducted experimentally by measuring the force of rolling resistance of the MEZ-330 “Autotractor”. System analysis and methods of statistical processing of the obtained research results are used.
Results. The prototype of the new mobile energy vehicle MEZ-330 “Autotractor” combines the characteristics of a truck and a tractor, which is used both on transport operations on solid roads and on traction and technological operations on the field. The MEZ-330 “Autotractor” has three drive bridges and tires with adjustable air pressure, so research into the force of rolling resistance for such mobile energy facilities is relevant and poorly researched.
The paper presents the methodology for conducting experimental studies and presents the measuring and recording equipment for conducting the research. The researches were carried out with the prototype of the mobile power tool MEZ-330 “Autotractor”, which was developed by NSC “IАЕE” together with PJSC “AvtoKrAZ”. The studies were conducted on asphalt road and field. The test conditions and method meet the requirements of GOST 7057-2003.
According to the results of experimental studies, a graphical dependence was constructed, which reflects the dependence of the rolling resistance of the tire pressure on the wheels of the wheels and the condition of the axial differential on the asphalt road and the field.
Conclusions. According to the results of studies, it is found that moving the asphalt road reduces the air pressure in the tires of the wheels of the MEZ leads to an increase in the force of rolling resistance by 168%, and the field – to reduce the rolling resistance of the MEZ to 46%.
When moving on paved roads, it is necessary to increase the air pressure in the tires of the wheels to reduce the rolling resistance and to avoid movement with a locked wheelbase. Moving on the field, it is necessary to reduce the air pressure in the tire wheels in proportion to the hardness of the ground and to use the interlocking differential lock to obtain high traction.
Keywords: mobile power tool, motor tractor, rolling resistance, tire pressure, wheelbase, hysteresis.
Use of biological oils for agricultural machinery
Authors: Zhuravel D. , Milko D. , Bondar A.
Published: January 2020

Purpose. Improvement of tribotechnical properties of organic oil to ensure the reliable operation of nodes and units of functional systems of mobile agricultural machinery.
Methods. The methods of estimation of tribotechnical properties of lubricants of biological origin were used.
Results. The methodology of improvement of tribotechnical properties of biological oil for mobile agricultural machinery is considered.
As a result of the conducted researches it is established that materials that work in the environment of biological lubricants have the best resistance to wear, in addition, the wear in the environment of biological oils is practically independent of the tribosystem load. However, organic oil is prone to negative processes that lead to polymerization and oxidation. To improve the tribotechnical properties of organic oil, it is necessary to introduce special additives and additives in it, which will allow to level these processes.
Conclusions.
1. It is established that the use of blended oil is promising. The widespread use of vegetable oil in the production of lubricants will solve some of the complex environmental problems.
2. The chemical and tribotechnical properties of organic oil are better than those of mineral oils, but they are inferior to the resistance to oxidation, so it is advisable to introduce multifunctional additives and additives to improve its basic characteristics. However, additives to organic oils have structural components of different origin, they are unsystematized and have no scientific justification to ensure the wear resistance of the surface layers of friction pairs of nodes and aggregates of mobile machinery.
3. As a result of the researches it was established that the wear of the samples for friction steam “spool – the valve body” decreased in the environments: rapeseed oil by 62.5%, and with 1.0% by the addition of ICF-18 by 75%; of sunflower oil by 62.5%, and with 1.0% by the addition of MKF-18 by 80%.
Keywords: agricultural technology, the reliability of functional systems, tribotechnical properties, metalplating additives, biological fluids, lubricants, units and aggregates.
Analysis of the operation of biogas plants
Authors: Skliar A. , Skliar R.
Published: January 2020

Purpose. To analyze the existing designs of biogas plants and especially their use. Provide guidance on the application of different methods of operation of biogas plants, as well as identify the advantages and disadvantages.
Methods. The methods of comparative and system analysis, scientific generalizations and the method of argumentation were used in the analysis of the methods of operation of biogas plants.
Results. Existing designs of biogas plants with different methods of work and production of biogas have been analyzed. The following methods are justified: batch and flow, complete mixing, the method of “cork” pushing the substrate, one- and multi-stage method, on solid and liquid substrates. As a result of the analysis of the above methods the characteristics of their application, as well as the advantages and disadvantages, were obtained.
Conclusions. Despite the variety of methods of operation of biogas plants, only the following were distributed: flowing, variable reservoirs, flow-cumulative. The advantages of such methods are relatively low investment costs, cumulative installations are easy to operate and easy to control.
Keywords: biogas plant, methane tank, working methods, substrate, sludge, anaerobic fermentation, manure.
Analysis of the operation of pumps when used in biogas plants
Authors: Skliar A. , Skliar R.
Published: January 2020

Purpose. Analyze the operation of pumps when used in biogas plants and the features of their use. Provide guidance on the use of different types of pumps, their advantages and disadvantages, and features of maintenance.
Methods. In the analysis of different types of pumps the methods of system and comparative analysis, scientific generalizations and method of argumentation are used.
Results. The article analyzes existing pump designs for pumping manure (substrate). The comparative characteristics of the following pumps, which are most commonly used in biogas plants, are given: centrifugal, eccentric auger and rotary piston. As a result of the analysis the characteristics of their application, advantages and disadvantages, variants of structures and features of maintenance were obtained.
Conclusions. The choice of suitable pumps according to the capacity and characteristics depends largely on the substrates used, their degree of preparation and/or dry matter content. An analysis of existing designs has shown that the use of plunger pumps (especially rotary ones) has many advantages over centrifugal ones: the ability to work with viscous substrates, self-priming and more pressure stable, suitable for substrate dosing, easy to maintain.
Keywords: pump, biogas plant, methane tank, substrate, sludge, dry matter, manure.
Researched the wear resistance of hardened plowshares by electroarc and spot welding
Authors: Vаsylenko M. , Buslаiev D. , Kаlinin O. , Kononogov Yu.
Published: January 2020

Purpose. The researched of the wear resistance of hardened plowshares by electroarc and abrasion-resistant electrodes, when they are used in soils of different types.
Methods. Conducting and planning an experiment, mathematical statistics and analytical processing of experimental data, field tests of experimental plowshares using the basic principles of the theory of friction and abrasive wear.
Results. The characteristic defects of shares operating in different types of soils are determined. According to the proposed hardening technology, the wear rate of experimental shares is reduced.
Conclusions
1.It has been established that the nature of the parts of tillage machines wear is significantly different when operating on various types of soils.
2.It was found that the wear rate of hardened plowshares for sandy soils is 1.2–1.6 times less than that of serial parts; hardened plowshares for clay soils also have a wear rate of 1.2–1.3 times less than serial ones.
Keywords: exploitation, hardfacing, plowshares, soils of different types, wear, wear resistance.
Information support system for determining a rational start date for the harvest of cereals
Authors: Myronenko V. , Tutunnik N.
Published: January 2020

Purpose. To reduce losses and improve the quality of the grain crop by optimizing the timing of the start of grain harvesting on a specific field.
Methods. Synthesis of algorithms for calculating the plan of harvesting work and logistics of grain flows. Methods of system analysis, database design methods and knowledge bases, mathematical programming methods.
Results. An algorithm, toolkit and method for determining a rational start day for harvesting grain spikelet’s on a specific field based on the dynamics of grain moisture in the ripening phase.
Conclusions
1.It is established that the use of the developed hydrometer and methods of research and analysis of the dynamics of grain moisture allows to determine the most favorable day of the beginning of harvesting in a particular field and the route of its transportation to the storage site, will provide a reduction of crop losses, increase of grain quality and reduction of operating costs for its transportation. .
2.Estimated economic effect in experimental research with wheat yield of 40 kg/ha in winter was 500 UAH/ha.
Keywords: grain, humidity, terms of harvesting, loss of harvest, logistics of grain.
Modeling of performance in estimation of design parameters transport-technological machines
Authors: Vitrukh P.
Published: January 2020

Purpose. Reduction of costs and increase of productivity of use of transport-technological machines.
Methods. Analytical.
Results. The above dependencies for the calculation of productivity can be used at different stages of development and design of transport technology machines (TTM) make it possible to reduce costs.
Conclusions. The above dependencies for the calculation of performance can be used at various stages of the development and design of TTM. In particular, it is advisable to use dependencies to evaluate the implementation of the design parameters of the TTM, since cycle performance is most sensitive to the parameters. In addition, the value Wц is the maximum achievable performance for some fixed values of the design parameters (ВР, Vк), characteristics (Vp, Qs, Rn) and conditions ( г, Q3, l4.1). It is advisable to use operational productivity for comparison of different variants of execution of TTM, since its value is influenced not only by design parameters and characteristics, but also by technological and technical reliability, operational manufacturability, organizational and technical factors.
Keywords: operational productivity, transport and technological machine, development and design, comparative assessment.
Theoretical studies of the process of distribution of biomaterial on the surface of the field
Authors: Maranda S.
Published: January 2020

Purpose. Improving the quality of resettlement through Trichogramma the establishment of rational modes of operation of the dosing and seeding device (DVP) of an unmanned aerial vehicle (UAV).
Methods. Theoretical studies of the motion of a particle of the test material. Experimental studies using the method of planning a three-factor experiment, methods of statistical data processing.
Results. On the basis of the analysis of trichogram resettlement means, the design of the dosing and seeding device of the unmanned aerial vehicle for trichogram resettlement was determined. As a result of the theoretical studies, the trajectory of motion of the particle of the test biomaterial was determined, which makes it possible to set the working width of the capture.
According to the results of experimental studies, the quality of material distribution does not change significantly with increasing flight altitude. However, factors such as plant height and obstacles in the field must be taken into account, so flight altitudes of at least 5 m should be respected.
Due to the air flow from the quadcopter propellers, the grip width is significantly reduced. Therefore, for qualitative distribution of biomaterial on the surface of the field, the distance between adjacent passages should be 6 m.
Conclusions
1.According to the results of theoretical calculations and experimental studies it is established that the flight altitude of an unmanned aerial vehicle during trichogram settlement should not be less than 5 m from the surface of the plant.
2.The qualitative estimation of material distribution on the surface of the field depends on the flight speed, which should be within 3–5 m/s.
3.The uniformity of distribution of biomaterials is greatly enhanced by the correct selection of the working width of the grip, which should be about 6 m.
Keywords: dosing sowing device, ejector, unmanned aerial vehicle, biological protection of plants, reshaping of trichograms, norm of settlement, width of capture.
Analysis of the influence of non-uniformity of air flow velocity on the trajectory of grain particles motion in a pneumatic inertial separator
Authors: Kotov B. , Stepanenko S.
Published: January 2020

Purpose. Determination of influence of non-uniform velocity field of air in horizontal channel of pneumatic inertial separator on efficiency of separation of components of grain material into fractions by aerodynamic properties.
Methods. The specificity of the issue under consideration determines the analytical method of study based on the compilation and analysis of kinetic equations of motion of a particle, in the form of a ball in the air flow of a horizontal channel with uneven distribution of air flow velocity over the height of the pneumatic channel.
Results. The mathematical description of the motion of particles of the grain mixture in the chamber of the gravitational-air separator under the action of air flow of variable speed air is given. The trajectories of motion of particles of different size were obtained.
The obtained equation of motion of a particle under the action of air flow allows to determine the dependence of the speed of movement of the material in the layer of grain material on a number of factors: geometric parameters of the separator, the angle of feed of the material, the initial kinematic mode of the material, as well as the coefficient of sail of the particle.
The technological possibilities of the proposed method of grain separation under the action of air flow are theoretically substantiated and the influence on the technological parameters of the basic parameters: air velocity, coefficient of live section taking into account the layer thickness of the material entering the channel is established.
Conclusions
1.On the basis of the analysis of the force interaction of the grain material particle with the air stream, an advanced mathematical model of particle motion in a non-uniform field of air flow velocity in the horizontal channel was obtained.
2.The real possibility of controlling the process of separation of components of grain material by aerodynamic properties by changing the plot of the air flow velocity along the height of the horizontal channel is determined.
Keywords: variable air velocity, trajectory, resistance of forces, fractions, air flow, wind factor, fractionation process, grain mixture, air separator.
Exploring Visual Methods in Teaching Tourism
Authors: Rodrigues Ana Isabel
Published: January 2020

Humankind is becoming increasingly image based. Visual culture is everywhere: it surrounds us all with still and moving images. Based on this pictorial change, working with the visual in education has the potential for engaging students in a process of self-reflection in an effort to
change ways of thinking and behavior, aiming to consolidate concepts taught in classes. Nevertheless, there are key elements to consider as a set of methodologies and practices. The aim of this study is to explore multiple ways of working with the visual, within educational environments, specifically
in classes taught in the second and third year of a degree in Tourism. Two examples of visual methodologies were considered for this study. An image-based exercise through the use of tourism cartoons as visual stimuli to evoke opinions and incite thoughts was fully implemented. Analysis was
undertaken and the results are presented. A reflexive photography method is also proposed as another example for a visual-based exercise. The results from the cartoons exercise demonstrate that knowledge is continuously derived from the experience of the learner. The student's impressions
and full comprehension of the concepts taught in a particular subject were achieved with this exercise.