bluuebunny/crossref_metadata_2025 huggingface dataset:
Professional PR-community in the Russian Far East: identification and self-organization
Authors:   the Pacific State University, Markina Yu. M. , Pestova Ya. N. ,   Railways Corporate University
Published: May 2021

The article is devoted to the issues related to the study of the process of identification and professional self-organization of public relations specialists in the Far-Eastern region of Russia. This process is studied from the point of view of defining the group identity, group norms, and the activities of professional communities. The empirical basis of analysis was the results of an expert survey of public relations specialists in the Far-Eastern federal district. The authors identify the current professional PR communities of the Russian Far East, identify the motives of their members for more active participation in the communities life. There is an independent association of representatives of professional group due to the grassroots activity «spontaneous self-organization» and the presence of experience in consolidating PR specialists in a specific field (state) with an external actor. It is concluded that today there is a willingness of the self-organized PR community to participate in solving the socially significant issues for the region, the development of inter-sector partnership, as a result of formation of trusting attitude of population to the decisions taken in the region.
Inclusão Digital: um mapeamento sistemático de ferramentas e aplicativos para pessoas com deficiência
Authors: Benício de Barros Souza Mayara , Nascimento Souza Walla
Published: May 2021

Este artigo busca identificar ferramentas e aplicativos para a inclusão digitalde pessoas com deficiência. Para isto, foi realizado um mapeamento sistemático para coletar e identificar essas informações. Esse mapeamento retornou inicialmente 339 estudos, dos quais foram selecionados 27 como estudos primários, possibilitando extrair 35 ferramentas e aplicativos, e 12 características funcionais deles. Essa quantidade de ferramentas e aplicativos obtidas desse mapeamento pode ser considerada relevante, o que possibilita inferir sobre a importância da utilização desses meios para a inclusão digital dos indivíduos portadores de algum tipo de deficiência.
Uma Revisão Sistemática da Literatura para Identificação de Lacunas de Pesquisa Relacionadas a Mineração de Processos Educacionais
Authors: Manoel da Silva Lucielton , Lins Rodrigues Rodrigo , Carlos Sedraz Silva João , Medeiros Chaves de Vasconcelos Gibran Medeiros Chaves de Vasconcelos , Luis Cavalcanti Ramos Jorge
Published: May 2021

This paper has as objective present the state of art of Educational Process Mining(EPM) and the application of yours results in Learning Management Systems (LMS), to do this was made a systematic review of literature(SRL), where through a well defined and objective process was selected articles to serve as base to the SRL. After the definition of the protocol and the realization of the methodological process we got nine articles that contributed satisfactorily to the responses of research questions related with the studied phenomenon, where was analisade many aspects of them to get informations about the current state of arte of EPM.
Implementações no Design do Jogo Going Abroad : descrição de sistemas e avaliação inicial do protótipo
Authors: Cristina dos Reis Susana , Siqueira Gazen Quélvin , De Siqueira Cecchin Renan
Published: May 2021

Este artigo reporta o desenvolvimento de um jogo digital educacional, cujo processo de design envolveu uma pesquisa exploratória que fomentou a criação de um novo produto 1tecnológico. Going Abroad (GA) caracteriza-se como um jogo sério (crítico) e tem caráter inovador porque oferece uma proposta de jogo para o ensino de língua inglesa de modo lúdico, que não se detém no ensino de conteúdos específicos (tais como vocabulário descontextualizado ou sentenças isoladas), mas que inclui em seu design a possibilidade de construção narrativa por meio de um sistema de escolhas. Esse sistema se propõe a favorecer o uso da linguagem pelos jogadores, buscando desse modo cativar e inserir o aluno-jogador em contextos que podem propiciar a diversão, o engajamento e a aprendizagem. Aliamos à proposta de narrativa não linear os desafios, com o objetivo de chamar a atenção do jogador à resolução dos problemas. As implementações feitas na versão Demo, até o presente momento, refletem as etapas de desenvolvimento que são orientadas por pressupostos teóricos multidisciplinares, o que nos permitiu elaborar quatro sistemas fundamentais no jogo, os quais são: diálogo, inventário, navegação e espírito.
Análise Pedagógica e Ergonômica da Combinação de Diferentes Metodologias para o Ensino de Estrutura de Dados
Authors: Luis Vieira Azevedo André , Veloso dos Santos Bruno , Junior Almeida Leão Benedito , Rodrigues de Alfaia Jacó , Dos Santos Portela Carlos , De Souza Farias Fabricio
Published: May 2021

Existem diversas metodologias que visam melhorar o desempenho dos alunos, no entanto, uma que se adequa para um estudante pode ser ineficiente para outro. Com isso o índice de desmotivação e desinteresse nas disciplinas de programação só aumenta. No curso de Sistemas de Informação da Universidade Federal do Pará isso é refletido em um elevado número de reprovações, que indica a necessidade da busca por novas metodologias para o ensino. Diante deste contexto, este trabalho visa avaliar o impacto pedagógico, ergonômico e de desempenho da aplicação de um conjunto de metodologias de ensino durante a disciplina de Estrutura de Dados I. Os resultados indicam que a metodologia proposta atende satisfatoriamente os critérios pedagógicos e ergonômicos, assim como, pode vir a auxiliar na redução do número de reprovações.
Criação de Narrativas Digitais Utilizando Elementos das Redes Sociais para Apoiar o Ensino de Eletrônica
Authors: Rodrigues Ferreira Iury , Freitas Duarte Filho Nemésio
Published: May 2021

As narrativas digitais vêm sendo utilizadas em diversas áreas do conhecimento, proporcionando ludicidade ao processo de ensino, inclusive por meio do apoio das redes sociais. O ensino na área de Eletrônica pode ser apoiado pela utilização de narrativas digitais. Neste contexto, este trabalho discute a criação de narrativas digitais utilizando elementos das redes sociais para auxiliar o ensino na disciplina de Eletrônica Básica. O conteúdo educacional das narrativas foi modelado por meio da criação de personagens e diálogos, sendo avaliado por docentes e alunos. Os resultados demonstram que as narrativas apresentam uma organização didática bem estruturada, proporcionando maior engajamento e motivação por parte dos usuários.
Métodos e ferramentas para o processo de planejamento docente no contexto dos estudos da área de Design da Aprendizagem
Authors: Dos Santos Gabrielle , Scherer Bassani Patrícia
Published: May 2021

O planejamento docente se caracteriza a partir de três etapas complementares: a definição dos resultados pretendidos, a proposição das atividades de ensino e as atividades avaliativas. Estudos na área de Design da Aprendizagem focam na proposição de ferramentas e métodos para guiar o planejamento e o compartilhamento de atividades de aprendizagem. Assim, este estudo tem por objetivo identificar quais as ferramentas e os métodos usados no contexto do planejamento docente a partir dos estudos na área de Design da Aprendizagem. A metodologia de pesquisa envolveu uma revisão sistemática de literatura, a partir de três bases de dados. Como resultados foram identificadas 12 ferramentas e métodos produzidos entre os anos de 2007 e 2018, que podem ser utilizados no processo de planejamento docente.
Um retrato sobre o ensino do Pensamento Computacional em anos finais do Ensino Fundamental no Sertão Paraibano
Authors: Ribeiro dos Santos Júnior Francisco , Rousy Dias Ricarte Danielle
Published: May 2021

O Pensamento Computacional, tido como uma das competências para habilidades exigidas no século XXI para o exercício da cidadania, está relacionada a capacidade de utilizar conceitos de computação para a resolução de problemas de diversas áreas de conhecimento. Ele abre caminhos para os futuros profissionais e ajuda no desenvolvimento mais efetivo de conhecimentos da capacidade de resolver problemas, apoiando e relacionando-se com outras ciências. Nesta perspectiva, o presente trabalho propôs investigar, através de uma pesquisa exploratória, o ensino de conceitos e abordagens do pensamento computacional nos anos finais do ensino fundamental (6º ao 9º ano), tendo como campo de pesquisa, escolas públicas do Sertão da Paraíba. Utilizou-se um questionário para coleta de informações a respeito do perfil socioprofissional dos professores e seu entendimento a respeito do Pensamento Computacional. Pode-se concluir que a definição de Pensamento Computacional ainda é desconhecida pela maioria dos participantes da pesquisa, além de ser amplamente associado ao uso de computadores e outras tecnologias digitais em sala de aula. Os conceitos de paralelização, análise de dados e coleta de dados, ligados a computação, foram identificados os mais abordados nas aulas, sendo matemática a disciplina que utiliza com maior frequência os conceitos abordados.
Fenalco Risaralda 1992 - 2017 : un gremio en expansión y con visión de ciudad. Comercio en Pereira y memoria de ciudad
Authors: Correa Ramírez Jhon Jaime , Echeverri Arango Victoria Eugenia
Published: May 2021

El presente libro constituye un interesante aporte para entender no solo la evolución y las transformaciones del gremio del comercio en la ciudad de Pereira entre 1992 y 2017, sino para comprender la manera particular en que la directora ejecutiva de FENALCO Risaralda, Victoria Eugenia Echeverri, y un importante grupo de conspicuos líderes empresariales de la ciudad aportan su visión –a modo de relato memorístico– sobre la Pereira de finales de siglo XX y los cambios vertiginosos en la economía y los nuevos patrones de consumo durante los primeros años del siglo XXI. Esta especie de balance de la gestión Esta especie de balance de la gestión gremial realizado por la doctora Echeverri combina la consulta de los archivos de la entidad y de un sinnúmero de recortes de prensa con su propia memoria del proceso que ha venido liderando en esta entidad por más de 25 años, a lo que suma la realización de entrevistas a los principales miembros de la Junta Directiva de Fenalco durante cinco ...
What dermatologists should communicate
Authors: Diamandis Dr. Carolina , Bodrov Dimitri V , Davis Alexander
Published: May 2021

In the case of a suspicious skin mole, the question always arises as to
whether it is benign or malignant. Is it a harmless mole, a capillary
malformation or a basal cell carcinoma, squamous cell carcinoma or even
a melanoma? Often the nevus can already be assessed by a close
examination of the lesion and a few questions regarding its development.
But most important: the patients need to be informed about their
condition in a simple but professional way.
Comparison of ambulance usage characteristics in children between the pre-pandemic and pandemic periods in Turkey
Authors: Sarı Eyüp , Şan İshak , Bekgöz Burak , AKÇA HALİSE
Published: May 2021

Aim: A pandemic is an epidemic of an infectious disease that has spread
across a large region of the world and affects many people. In this
study, it was aimed to evaluate the impact of the coronavirus disease
2019 (COVID-19) pandemic on ambulance use by pediatric patients in
……………., Turkey. Materials and
Methods: This retrospective study was conducted in the spring-summer of
2019 and 2020. The electronic medical records of pediatric patients who
were transported to the hospital by ambulance were analyzed. Results: It
was determined that 49.6% of the 23,201 patients included in the study
were transported during the pandemic period. Male gender was higher in
both the pandemic and pre-pandemic periods, there was no difference in
terms of average age. The rate of forensic cases and refugee patients
increased, while that of emergency patients decreased. Both the arrival
at the scene time and intervention time were prolonged. Medical cause
was the most common cause of emergency calls in both years, however, it
increased significantly in 2020. The decrease in cases of traffic
accidents, suicides, and other accidents was statistically significant.
In the pandemic period, total rate of COVID-19 infection and suspicion
was 29.7%. Most of the patients had been referred to a public hospital.
Conclusion: It was found that most of the ambulances were used for
transporting patients with minor illnesses that did not require
immediate medical attention.
Analysing the Capability of the Catchment's Spectral Signature for the Regionalization of Hydrological Parameters
Authors: Fragoso-Campón Laura , Durán-Barroso Pablo , Rosado Elia
Published: May 2021

Water resource management in ungauged catchments is complex due to the
uncertainties around the hydrological parameters that dominate the
streamflow behaviour. These parameters are usually defined by
regionalization approaches in which hydrological response patterns are
transferred from gauged to ungauged basins. Regression-based methods
using physical properties derived from cartographic data sources are
widely used. The current remote sensing techniques offer us new
standpoints in regionalisation processing since the hydrological
response depends on the physical attributes related to the spectral
responses of the territory. Moreover, machine learning approaches have
not been specifically applied to the regionalization of hydrologic
parameters. This work studies the capability of a catchment’s spectral
response based on Sentinel-1 and Sentinel-2 data to address a
regression-based regionalization of hydrological parameters using a
machine learning approach. Hydrological modelling was conducted by the
HBV-light model. We tested the random forest algorithm in several
regionalization scenarios: the new approach using the catchments’
spectral signature, the traditional method using physical properties and
a fusion of them. The calibration results were excellent (median KGE =
0.83), and the regionalized parameters obtained with the random forest
algorithm achieved good performance in which the three scenarios showed
almost the same goodness of fit (median KGE = 0.45 to 0.50). We found
that the effectiveness depends on the climatic environment and that
predictions in humid catchments exhibited better performance than those
in the driest catchments. The physical approach (median KGE= 0.71)
exhibited better performance than the spectral approach (median KGE=
0.64) in humid catchments, whereas spectral regionalization (median KGE=
0.33) outperformed the physical scenario in the driest catchments
(median KGE= 0.25). Herein, our results confirm that regionalization is
still challenging in Mediterranean climate variants where the new
spectral approach showed promising results and time series of satellite
data could improve seasonal regionalization methodologies.
The Regulatory Role of Credit Ratings and Voluntary Disclosure
Authors: Basu Riddha , Naughton James P. , Wang Clare
Published: May 2021

We find that corporate credit rating changes have an effect on firms' voluntary disclosure behavior that is independent of the information they convey about firm fundamentals. Our analyses exploit two separate quasi-experimental settings that generate either exogenous credit rating downgrades or credit rating upgrades (i.e., credit rating label changes). We find evidence of a negative relation between the direction of the credit rating label change and the provision of voluntary disclosure in both settings—firms respond to exogenous downgrades by increasing voluntary disclosure and to exogenous upgrades by decreasing voluntary disclosure. The effects we document are attributable to the regulatory role rather than the information role of credit ratings. Overall, our analyses indicate that credit rating agencies as gatekeepers influence firms' provision of voluntary disclosure.

Data Availability: Data are available from the public sources cited in the text.

JEL Classifications: G15; G18; M41.
Securities-Based Crowdfunding by Startups: Does Auditor Attestation Matter?
Authors: Gong Jing , Krishnan Jayanthi , Liang Yi
Published: May 2021

We examine financing outcomes for small businesses seeking to sell public securities in a setting characterized by high information asymmetry, weak requirements for auditor participation, and a complete absence of Big N auditors. Issuers that raise capital from small, unsophisticated investors through crowdfunding, under the Securities and Exchange Commission's Regulation Crowdfunding (RegCF), often need no auditor attestation or need only weak attestation in the form of reviews, not audits, of their financial statements. We find that auditor reviews are positively associated with both the probability of crowdfunding success and the total amount raised. Further, we compare outcomes for issuers that procure auditor reviews voluntarily and mandatorily, and document that issuers with voluntary reviews have better outcomes. We conjecture that for issuers that voluntarily procure reviews, the reviews serve as signals of high future prospects. Finally, the positive effect of reviews is concentrated in PCAOB-registered auditors.

JEL Classifications: G18; M41; M42; M48.
The Determinants and Consequences of Big 4 Lobbying Positions on Proposed Financial Accounting Standards
Authors: Monsen Brian R.
Published: May 2021

Despite the considerable participation of Big 4 accounting firms in accounting standard setting, there is no systematic evidence on what factors shape Big 4 support or opposition toward proposed accounting standards or whether their lobbying positions materially influence standards. Using textual features of Big 4 comment letters on FASB proposals, I find that Big 4 firms' lobbying positions reflect profit motives through support for standards that will generate more fees or are supported by their clients. Big 4 lobbying support is concentrated in proposals exhibiting both characteristics, with some evidence suggesting client agreement dominates fee-generating incentives. Big 4 lobbying positions are significantly associated with standard setting outcomes, both in isolation and relative to other FASB constituents, including financial statement users. Although I primarily focus on Big 4 accounting firms, results indicate the tone of comment letters submitted by users is unassociated with the standard setting outcomes measured in this study.

Data Availability: All data are publicly available from the sources indicated.

JEL Classifications: M41; M42.
Study The Relationship of Thermal Reflection Intensity with Its Height and Thickness
Authors: Al-Ghrybawi Shahad R. , Al-Jiboori Monim H.
Published: May 2021

Surface heat inversion (SHI) is important in determining the spread of pollutants in the lower part of the troposphere. This paper presents the relationship between heat inversion intensity and its height and thickness using the daily radiosonde data (midnight) of the period from (2013-2014) obtained from the Iraq Meteorological Organization and Seismology (IMOS). The results of the study were that heat inversion intensity increases with the increase in height in winter, summer, and autumn, during the spring, so there is no relationship. The relationship of heat inversion thickness with intensity is linear in spring, summer, and autumn, but inverse in winter.
X-Ray Solar Flares Observed and Detected by the New Very-Low-Frequency Receiver in Nasiriyah City, South of Iraq
Authors: Allawi Habeeb , Jasim Moataz , Difar Kareem Abdulameer
Published: May 2021

A receiver station was installed at Nasiriyah (Dhi Qar University - Faculty of Sciences) to receive very low frequency (VLF) radio signals from transmitters around the world. VLF waves are excellent probes of the sudden ionospheric disturbance (SID); they detect varying properties of the D layer presented as a lower region of the ionosphere when these waves propagate through the Earth-Ionosphere Waveguide. This study describes the set-up of our station system and it demonstrates its ability to detect sudden ionospheric disturbances caused by solar flares in May, June, July, August, and September 2017. We found out that the monitoring station is working successfully to receive FLV signals, and to detect sudden ionospheric disturbances. We detected 17 events resulting from solar flare C-class, 8 events from M-class, and 3 events from X-class that caused an increase in the received FLV amplitude.
Dynamical Study for Selective Extreme Events over Iraq and their Relations with General Circulations
Authors: Mohammed Ali. j. , Mohammed Samir K. , Kadhum Jasim H.
Published: May 2021

The cold events and Precipitation conditions having special attention in the last years due to their impact on human health, ecosystems, and other aspects such as agriculture, hydrology. The ECMWF ERA-Interim 12-hourly (03 and 15 UTC) total precipitations and Tmin in a 1º x 1º grid covering Iraq, from 29° N to 38° N and from 39° W to 48° E, with a total of 10 by 10 cells, was used. At each grid point, extremes were defined as those events in which total precipitations were above 99th percentile for the 25 years period 1994-2018. For more investigation, the Hybrid Single-Particle Lagrangian Integrated The trajectory (HYSPLIT) model was used to study the dynamical mechanism that led to producing the cold events in Iraq. The number of extreme precipitations patterns shows an increasing behavior in the number of extreme events especially in the last decade, farther more there is a significant increase in the number of extreme precipitations in the last three years ago. No correlations were found with NAO, EA index, in contrast, there is a significant negative correlation with winter Arctic oscillations index. The aim of this work is studying the precipitation and cold extreme events in Iraq and their relations of most hemispheric pattern which influence in the Middle East region such as North Atlantic Oscillation (NAO), East Atlantic index (EA), Artic oscillation index (AO) and Mediterranean index (MOi). We speculate that the results of this study can provide a better understanding of extreme cold and precipitations anomalies in Iraq from a large-scale view.
Global Threats to the Development of Civilization in the 21st Century. VII Cartesian readings. Part 2
Authors:   Национальный исследовательский университет  «Московский институт электронной техники»  Институт философии Российской академии наук  Философское общество «Диалектика и культура»  Российская академия народного хозяйства и государственной службы при Президенте Российской Федерации  Белорусский национальный технический университет Университет Калабрии (Италия), Team of authors MIET
Published: May 2021

The materials of the conference reflect the results of applied and creative research of the scientific and educational community in the fields of philosophy, psychology, pedagogy, physical-mathematical and natural science knowledge. The aim of the conference is to identify and consider clusters of global threats in the systems of nature, society, and man. The author's team is represented by recognized scientists and young researchers from Russia, Belarus, Kazakhstan, Germany.
Student Mobility – Attractiveness and Premise of Improving the City Image. Case Study: Alexandru Ioan Cuza University of Iași
Authors: DULCE Cezara Ionela , MUNTELE Ionel
Published: May 2021

Nowadays, brand image dominates almost any field of activity and becomes a source of power, being much more efficient than a word. Our article aims to analyse the evolution of Erasmus+ mobility at Alexandru Ioan Cuza University of Iași between 2013 and 2019 and to highlight, by the increasing attractiveness, the important role of these internships in the improvement of the city image. Regarding the methodology, our descriptive study was based on statistical information provided by the International Relations Office of the university. The purpose of the analysis was to identify the dynamics and distribution of student mobility flows, following the expressed trends. The results revealed a series of transformations: on the Outgoing component, numerous Romanian students chose for study notorious university centres in France, Spain, Italy, Germany and Poland and destinations in Greece, Italy or Iceland for an internship and, on the Incoming component, the increasing number of foreign students arrived from France, Spain, Poland and Portugal. Together with the traditional cultural assets of Iași, the increasing number of students involved in Erasmus+ internships can improve the city image as an attractive urban centre.
Tiempo y memoria en el proceso de conocimiento de las ciencias de la información
Authors: Alfaro López Héctor Guillermo
Published: May 2021

Tiempo y memoria son parte constitutiva de la información y, más aún, son su condición de posibilidad. Para comprender y fundamentar cognoscitivamente tal afirmación en las ciencias de la información, se lleva a cabo una reflexión dividida en dos fases: en la primera se busca responder qué son el tiempo y la memoria; en el caso del tiempo, a partir de la propuesta del sociólogo Norbert Elias que define el tiempo como “símbolo social comunicable” y, respecto a  la memoria se hacen una serie de consideraciones a partir de su plasmación en las textualidades. En la segunda, fase se lleva a cabo la fundamentación epistemológica del tiempo y la memoria, para estatuirlos como conceptos que tienen la función de ser soporte y operativos de los otros conceptos en las ciencias de la información con que construyen sus objetos de conocimiento. Todo este proceso de conocimiento se ejemplifica en el caso de la lectura, dentro del marco de la bibliotecología; para ello se implementan los conceptos relacionales de intermediario, mediador-traducción, acuñados por Bruno Latour. Se muestra cómo la lectura transporta la información en cuanto significado, que puede ser conducido como mediador-traductor o intermediario, a cuya base se encuentran el tiempo y la memoria.
Opening the black box of implementing activation in Ireland
Authors: Whelan Nuala
Published: May 2021

This paper focuses on Ireland’s ‘activation turn’ and the roll-out of the Pathways to Work policy, contextualising these reforms within recent international developments in activation. Using a qualitative approach, the study explores the perceptions of a range of key stakeholders – jobseekers, employment guidance practitioners, employment service managers, ancillary services and policymakers – offering some important insights into Ireland’s move towards activation and the implementation of Pathways to Work. Three overarching themes were identified: depersonalisation, the missing ‘how to’ of implementation, and the reform agenda. These findings, although tentative, provide a new understanding of the perceptions of key stakeholders, described as ‘insiders’ and ‘outsiders’, and their views about both implementation and perceived effectiveness.
Moving towards a more tailored Public Employment Service?
Authors: Johnston Helen , McGauran Anne-Marie
Published: May 2021

In this paper the authors draw on a qualitative study of low-work-intensity households in a disadvantaged suburb of Dublin in 2016–17 to identify some of the gaps in Ireland’s reformed ‘one-stop shop’ Public Employment Service. Drawing on the issues recognised as being required in an integrated Public Employment Service, the paper draws attention to gaps in information; training; services that support employment, such as childcare and housing; and links to employers. The authors conclude by drawing lessons on the issues which need to be addressed for a more tailored Public Employment Service.
Contamination of Acorns of Pedunculate Oak (Quercus robur L.), as Feed Material, by Moulds and Mycotoxins
Authors: Kosicki Robert , Twarużek Magdalena , Kannenberg Krystyna , Grajewski Jan
Published: May 2021

In the past, pigs were commonly fed with acorns, and this was of remarkable economic importance. Currently this habit is continued in some areas, especially for production of prime-quality Iberian ham. Mature acorns, after shedding and during storage in unsuitable conditions, can be quickly infected with spores of many moulds, which cause mummification, blackening, dehydration, and nutrient loss. This study aimed to evaluate the quality of acorns of pedunculate oak (Quercus robur L.). The samples were collected in 2017 in southern Wielkopolska (central part of Poland), as feed material. In mouldy acorns a very high number of fungi was found (2.6 × 106 cfu/g), and 97% of them represented pathogenic Penicillium spp. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis showed in mouldy acorns high concentrations of mycophenolic acid (14580 μg/kg) and patulin (50 μg/kg). The dominant mould species, Penicillium expansum, showed a high cytotoxicity of swine kidney cells using assay based on the conversion of the tetrazolium salt, 3-(4,5, dimethylthiazol-2-yl)-2-5 diphenyltetrazolium (MTT). This raises the question if the pathogenic metabolites of moulds present in acorns can be dangerous for livestock, especially pigs, and people, as acorns are beginning to be seen as an interesting and functional part of their diet.
Etiological and Pathomorphological Investigations of Coronavirus and Rotavirus Gastroenteritis in Goat Kids and Lambs
Authors: Kalkanov Ismet , Dinev Ivan , Zarkov Ivan
Published: May 2021

The aim of the performed field and laboratory investigations was to determine the commonest enteropathogens in neonatal and juvenile lambs and goat kids, as well as induced macro- and microscopic alterations in the different digestive system compartments. The study comprised a total of 850 newborn and juvenile lambs (600) and goat kids (250) from 9 private dairy farms (3 goat farms, 6 sheep farms). The age of animals was from 24 hours to 20 days. The following rapid antigen detection tests were used: (Rainbow calf scour 5 BIO K 306, Monoclonal Antibody anti-Coronavirus аnd Rotavirus FITC conjugated, BIOX Diagnostics, Belgium). Gross anatomy and histopathological examination of tissue samples was performed on 21 carcasses (9 goat kids and 12 lambs) from animals that died with signs of gastroenteritis. The main detected agents of intestinal infections were Cryptosporidium parvum, rotaviruses, coronaviruses and Escherichia coli.
Determination of Aflatoxins and Ochratoxin a in Animal Liver using HPLC-FD Method with Immunoaffinity Column Clean-Up
Authors: Stojanovska-Dimzoska Biljana , Dimitrieska-Stojkovic Elizabeta , Hajrulai-Musliu Zehra , Uzunov Risto , Angeleska Aleksandra , Jankuloski Dean , Blagoevska Katerina
Published: May 2021

Analytical methods based on immunoaffinity column clean-up and quantitative determination with liquid chromatography-fluorescence detection were used to determine aflatoxins and ochratoxin A in liver samples. The validation of the procedures was performed. The linearity of the methods was checked, and a good coefficient of correlation was found for all aflatoxins and OTA as well. The LOD and LOQ were acceptable: 0.003 µg/kg and 0.009 µg/kg for AFB1; 0.001 µg/kg and 0.005 µg/kg for AFB2; 0.006 µg/kg and 0.020 µg/kg for AFG1; 0.007 µg/kg and 0.022 µg/kg for AFG2; 0.08 µg/kg and 0.27 µg/kg for OTA. The results for the repeatability estimated by the relative standard deviation (RSDr) were satisfactory and the obtained values were in the acceptable range (1.97–14.41% for all aflatoxins and 3.76-8.31% for OTA) at three proposed concentration levels. RSDR values showed acceptable correlation between two analysts for all four aflatoxins and OTA. The RSDR values were as followed: 2.37% and 5.60% for AFB1, 6.71% and 8.78% for AFB2, 4.40% and 7.00% for AFG1 and 10.30% and 13.91% for AFG2 (for the first and second analyst, respectively). The RSDR values for OTA were 4.91% and 3.15% (1 µg/kg); 3.76% and 4.12% (5 µg/kg) and 8.31% and 8.21% (10 µg/kg). The mean recovery for total aflatoxins and OTA were 78.10% and 93.34%, respectively. All validation parameters were in accordance to European legislation. They indicate that the proposed analytical procedures are suitable and they could be methods of choice for the determination of aflatoxins and OTA in liver samples.
Measuring Outcomes of Digital Transformation in Public Administration: Literature Review and Possible Steps Forward
Authors: Dobrolyubova Elena
Published: May 2021

Digital transformation is the modern mainstream of social and economic development promising significant digital dividends to citizens and businesses worldwide. The theory highlights the importance of digitalization for optimizing the public value of government services for citizens; however, despite the high enthusiasm about the prospects of digital transformation in public administration, there is little literature on measuring actual benefits this process might provide to all stakeholders concerned.

While some recent research suggests high correlation between governance indicators and e-government development, the causality between the two is not confirmed statistically for most public administration indicators. International indices used to measure government digitalization (such as the UN E-Government Development Index) often concentrate only on e-services and are based on measuring the availability rather than the actual use or quality of such modes of service delivery; they concentrate more on measuring G2C and, to some extent, G2B interactions and often omit the effects of digitalization for the G2G and G2E dimensions. The EU Digital economy and society index (DESI) is one of the most advanced cases for measuring the progress of digitalization in the EU, but even in this case the costs of digitalization and potential risks of digital government are not fully accounted for.

The paper provides an extensive review of theoretical and practical approaches to measuring government digitalization, identifies key limitations and proposes some steps for enhancing the existing practices. The paper argues that government digital transformation should not be performed for its own sake but should be a means for raising effectiveness and efficiency of public administration. Therefore, both benefits and risks of digital transformation of performing all core government functions for various stakeholders (citizens, businesses, government itself, and public officials) should be accounted for.
Innovative Concept of Providing Local Public Services Based on ICT
Authors: Meričková Beáta Mikušová , Muthová Nikoleta Jakuš
Published: May 2021

The public sector faces the challenge of re-evaluating public service delivery mechanisms with a citizen orientation. The eGovernment concept should not only focus on delivering a large number of services to increase efficiency and effectiveness when deciding on a top-down approach, based on government needs, but decisions should be made on the basis of citizens’ needs, a bottom-up approach. The object of the paper is to identify problems of public service innovations demand and supply, which determinate the adoption of local public service innovations based on the use of IT technology in the condition of Slovak Republic. The results of the investigation confirmed that there is citizen demand for innovation of local public services, but the process of developing and implementing innovative concepts of public services fails on the grounds of the low innovation potential of the service providers.
Purification of Oil-Containing Waste Using Solar Energy
Authors: Abdibattayeva Мaral , Bissenov Kylyshbay , Zhubandykova Zheniskul , Orynbassar Raigul , Tastanova Lyazzat , Almatova Bayan
Published: May 2021

Significant oil losses in oil-containing wastes and their adverse impact on the region environmental setting bring about the need to develop an oil-containing wastes treatment technology. To tackle this issue, the authors have set an aim of designing a helio device and creating an oil-containing wastes treatment method based on it to extract oil products. Considering a widespread in the composition and properties of potential oil sludge raw materials and their tendency for either formation of stable emulsions or phase separation, we have conducted in-depth modern physical and chemical studies and defined the need to develop a commercial oil-containing wastes purification method. We have designed the device, in which oil product hydrocarbons undergo thermal treatment using solar energy. Following oil-containing wastes purification using solar energy, the particulate load in soil does not exceed 6.65–6.79 % and the absolute molecular weight of hydrocarbons approaches that of bitumen. The developed oil-containing wastes purification method solves an important environmental issue of oil-containing wastes recycling, promotes recovery, and prevents degradation of natural complexes, and reduces soil and water pollution.
Modelling Total Factor Productivity in a Developing Economy
Authors: Eita Joel Hinaunye , Pedro Marcio Jose
Published: May 2021

Total factor productivity is an important driver of economic growth. It is therefore important to understand its determinants. This will help to enhance it and accelerate economic growth. The objective of this paper is therefore to investigate drivers of total factor productivity in Angola. The investigation covers the period 1995 – 2018. It is conducted for selected sectors of the economy. The results show that foreign direct investment has a positive effect on total factor productivity in all sectors. Increase in openness of the economy and depreciation the exchange rate have a positive effect on total factor productivity in the manufacturing sector. However, an increase in these two variables is associated with a decrease in total factor productivity of the primary and service sectors. The results indicate that a rise in inflation is associated with a decrease in total factor productivity in the manufacturing and service sectors. However, an increase in inflation is positively associated with an increase in total factor productivity in the primary sector. Increase in official development assistance impact negatively on total factor productivity in the primary and service sectors. This variable has a positive effect on total factor productivity of the manufacturing sector. The implication of these results is that Angola should pursue policies that attract foreign direct investment in order to ensure sustainable total factor productivity growth. The impact of other drivers such as openness of the economy, inflation, official development assistance and exchange rate depends on sectors. This implies that it is important for Angola to implement policies, which are specific to sectors. This will help to enhance the growth of total factor productivity.
The Crisis of Artistic Forms after 1945; Abstractionism and the Theatre of the Absurd versus Abstract Theatre Dilemma
Authors: Rusu Cristian
Published: May 2021

The present study aims to revive the discussion on Martin Esslin’s 1961 labeling of the post-war theater as “absurd” and proposes the consideration of a new paradigm: “abstract theater”. In the great existential and artistic crisis triggered by the end of the Second World War, post-war art oriented itself towards an abstract expression that would dominate the 5th and 6th decades of the 20th century. A panoramic study of the second wave of the avant-garde represented by abstract art could also include these dramatic texts in the great abstract movement of the period. This approach could reopen, in the spirit of the analysis of that Zeitgeist, a fruitful discussion, integrating the art of theater in the great post-war abstractionist spirit.
Way Beyond Art
Authors: Nedelcu Liviu
Published: May 2021

On the private and independent art scene, the male and female artist and curator addressing socio-political issues are recurring presences, explained by the art historian Beti Zerovc through the spreading of curating accompanied by a politicized discourse on how art and its institutions can contribute to building a better, more democratic, more egalitarian and freer world1. In this article, I will focus on male and female artists who address sensitive issues in society either to make them visible or to offer possible alternatives, using performance as a means of artistic expression due to its immaterial character and specific immediacy it implies.

I propose a brief account of the history of performance in the field of visual arts, to review the role given to art in a close relationship with society, in a transversal and close relationship with the viewer, in a relationship with artistic institutions which is often critical. Finally, I will present a series of artistic projects carried out in the past ten years in Romania, to explore the dynamics of art - society - artist - spectator - institution and to identify the sensitive issues involved and the forms, values, lifestyles that art performance projects that I propose.
Assessing the demographic situation in single-industry cities: The Nizhny Novgorod agglomeration case study
Authors: NIKONOVA Mariya A. , AKINFEEVA Ekaterina V.
Published: May 2021

Subject. This article deals with the issues of development of the economy of monocities and creation of agglomerations.
Objectives. The article aims to assess the impact of an urban agglomeration on changing the demographic situation in the monocities that make up its membership.
Methods. Examining the data of the Federal State Statistics Service, and official websites of the Nizhny Novgorod Oblast and monocities under consideration, we used a comparative analysis.
Results. Manufacturing and agriculture are the basis of the industry specialization of the monocities under consideration. During the period 2018–2020, the demographic situation in the monocities of the Nizhny Novgorod metropolitan area has not changed much.
Conclusions. To include a monocity in the metropolitan area, its various features should be considered. Comprehensive institutional measures to create effective governance models are necessary to heighten an agglomeration effect.
Konsensualna interpretacja filmu dokumentalnego – na przykładzie "Siły kobiet" w reżyserii JR
Authors: Stoch Magdalena
Published: May 2021

Niniejszy artykuł to case study – egzemplifikacja sposobu wykorzystania metody konsensualnego podejmowania decyzji (ang. CODM – Consensus-Oriented Decision-Making) w interpretacji filmu dokumentalnego. Przedmiotem analizy jest Siła kobiet (tytuł oryginalny: Women are heroes), film francuskiego artysty posługującego się pseudonimem JR. Dokument został nakręcony we Francji w 2010 roku. W Polsce pokazano go po raz pierwszy trzy lata później.
Evaluation of nasal symptoms to distinguish eosinophilic from noneosinophilic nasal polyps based on peripheral blood
Authors: Pan Xiaodan , Zhang Yuan , Wang Chengshuo , Zhang Luo
Published: May 2021

Background: Patients with eosinophilic chronic rhinosinusitis with nasal polyps (eCRSwNP) have poorer outcomes after endoscopic sinus surgery and a higher recurrence rate. Objective: This study aimed to investigate the profile of clinical symptoms of eCRSwNP
and the related risk factors. Methods: We prospectively enrolled 298 inpatients with CRSwNP from February 2019 to December 2019. The patients were divided into eCRSwNP and non-eCRSwNP groups based on the percentage of blood eosinophils; the cutoff value was set at 3.05%.
Clinical data on questionnaires, visual analog scale (VAS) scores, and laboratory tests were collected. The differences in clinical symptoms, including nasal congestion, rhinorrhea, olfactory disorders, and head and/or facial pain, between the two groups were analyzed to identify the influential
factors. Logistic analysis and receiver operating characteristic curves were used to determine the diagnostic benefit for the specific symptom in the patients in the eCRSwNP group. Results: Nasal congestion and olfactory disorders were significantly different between the
eCRSwNP and non-eCRSwNP groups. The patients in the eCRSwNP group more frequently had concerns about olfactory disorders (p = 0.002), whereas patients in the non-eCRSwNP group mostly had nasal congestion (p = 0.001). The logistic analysis showed that the primary
risk factors for olfactory disorders of eCRSwNP were disease duration (p = 0.014) and alcohol intake (p = 0.012). Olfactory disorders were not associated with the disease course of the eCRSwNP group but were correlated with the disease duration of non-eCRSwNP (p = 0.008).
A VAS score for the olfactory disorders of >5.75 could be used to predict the diagnosis of eCRSwNP (area under the curve, 0.674 [95% confidence intervals, 0.559‐0.689]; P < 0.001). Conclusion: Olfactory disorder might be the major nasal symptom
that could be used to distinguish a peripheral eosinophilia‐based definition of eCRSwNP and non-eCRSwNP. The disease duration was a limiting factor for using olfactory to distinguish two subgroups of nasal polyp. The investigation with regard to the accurate time boundary should be
further addressed.
The relationship between mast cell activation syndrome, postural tachycardia syndrome, and Ehlers-Danlos syndrome
Authors: Wang Edwin , Ganti Tej , Vaou Eleni , Hohler Anna
Published: May 2021

Background:Postural tachycardia syndrome (POTS), hypermobile Ehlers-Danlos syndrome (EDS), and mast cell activation syndrome (MCAS) can occur in the same patient. In this study, we investigated the relationship among these three syndromes.Objective:To establish the relationship of MCAS in patients diagnosed with POTS and hypermobile EDS as well as characterize the demographics of the patients affected by these syndromes.Methods:A total of 195 medical records of patients by using a diagnostic codes data base search for disorders of autonomic dysfunction were identified. The demographics of the patients and diagnoses of POTS, EDS, or MCAS were recorded. Confidence intervals of the proportion of patients MCAS within a population of patients with POTS and EDS were compared with the proportion of patients with MCAS and without POTS and EDS. Odds ratios were also calculated within these groups.Results:The percentage of MCAS within the group of POTS and EDS was 31% in comparison with 2% within the non‐POTS and EDS group. The 95% confidence interval calculated for the MCAS in the POTS and EDS group did not overlap with 2%, which showed a statistically significant result. The odds ratio between the two groups was found to be 32.46.Conclusion:There was a marked percentage of MCAS among the patients with diagnoses of POTS and EDS.