bluuebunny/crossref_metadata_2025 huggingface dataset:
Data Integrity Attacks in Cloud Computing: A Review of Identifying and Protecting Techniques
Authors: Kaja Durga Venkata Sowmya , Fatima Yasmin , Mailewa Akalanka B.
Published: February 2022

Cloud computing is growing tremendously in recent years. Many organizations are switching their traditional computing model to a cloud based because of its low cost and pay-as-you-go manner. Although Cloud Service Provider (CSP) ensures that the data stored in their remote cloud server will be intact and secure. But there are many data integrity issues exist that needed to be addressed. In Cloud environment, lack of data integrity is a major concern. In this paper, we have surveyed several past studies which identifies the issues related to the cloud data storage security such as data theft, unavailability, and data breach of cloud server data. We have also provided a detailed analysis of types of data integrity attacks and their mitigation techniques.
Eurasia: Dawning of New Dark Age? The G20 Meeting in Hamburg 2017, a Milestone on the Blind Alley towards Common Global Future
Authors:   International Institute for Applied Systems Analysis, Sassin Wolfgang
Published: February 2022

The globalisation of mankind as a moral and ethical justification for the installation of a worldwide domestication policy distracts the attention of leading Eurasian politicians from the actual fundamentals and detrimental threats of globalisation in the Eurasian space, especially if economic issues, investment programmes and lending are put in the foreground. These topics can relate to only short-term necessary regulation and control interventions without strategic perspectives of development of Eurasia. Such a narrow understanding of the situation creates a myth that the global expansion of the Western “value system” can continue in Eurasia indefinitely. This basic assumption of the modern "Enlightened" politics of Europeanisation of Eurasia is not just a utopia, a non-existent place like the ancient Greeks thought. It may create a dystopia, the worst place in the world. Will we live in such Eurasia like this?
Europeanising Eurasia beyond the Boundaries of European Union: Extimity in Gender as an Export Product
Authors:   Koltzov Institute of Developmental Biology of Russian Academy of Sciences, Sharov Konstantin S. , Dupont Lucille ,   Nouveaux changements politiques political observing agency
Published: February 2022

Extimity as a socio-psychological phenomenon that was created and matured in European political discourse and social programmes, during the last ten-fifteen years became a product of exportation from European Union to the whole of Eurasia. It is widely depicted by media and many politicians as a part of the worldwide gender equality movement, but in fact it represents a political means of pre-designed formation, attribution, consolidation and transformation of gender social roles and statuses in Eurasia. Such use of extimity is performed according to common mould that presumably reflects a centripetal force which has to additionally unify Eurasian population across a common idea shared by the majority, ultimately the idea of the global unified humanity. In the instrumental aspect, extimity is associated with the re-transmission of neo-liberal gender communicative stereotypes and behaviour models in non-European parts of Eurasia. In the paper, we analyse social and political implications and consequences of such extimity exportation from EU to the rest of Eurasia.
Availability, Utilization of Iodized Salt, Status of Iodine Deficiency Disorder and Level of Iodine Content at Households’ Salt among Coastal Areas of Population in India
Authors:   Assistant Professor of Statistics, Department of Pharmacy Practice, College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia., Vasudevan Senthilvel , Natesan Murugan ,   Professor, Department of Community Medicine, Pondicherry Institute of Medical Sciences, Kalapet, Pondicherry, India.
Published: February 2022

Background: Iodine deficiency disorder is common public health problem in developed and developing countries. In Worldwide, nearly 70% of the households only using adequate iodized salt in their regular food. To estimate the household salt utilization, prevalence of goiter, status of iodine deficiency disorder, and to find the iodine level at household level in the study areas. Materials and Methods: We have done a community-based observational study on IDD in the coastal areas of Villupuram District, Tamil Nadu with examined households salt in 1233 households in selected eight villages. All data were analyzed using Chi-Square test. p–value<0.05 was considered as statistically significant. Results: Totally 1233 households were recruited and incorporated in this study. Among 1233 households, male 385 (31.2%) and female 848 (68.8%). The male and female age-group was showed statistically highly significant association with p<0.01. Out of 1233 individuals, 141 (11.4%) were found as total goiter. The prevalence of goiter was 105 (12.4%) in female than male was 36 (9.4%) and no statistical association between gender among goiter prevalence (p>0.05). Conclusion: From our present study findings, we have concluded that majority of the study population was used iodized salt in their regular food. But, very less adequately iodized salts were available nearby study areas. Nevertheless, majority of the households didn’t know about the benefits about the usage of iodized salt. Health education is needed in to the shopkeepers and local vendors. This will be conducted by non-Governmental organization, Government organization and other nearby medical colleges. Keywords: household salt, utilization, iodine, iodine deficiency disorder, coastal areas
A multivariate analysis approach on identifying of influencing factors and the chance of development of diabetic eye disease among diabetes in a diabetic Centre of Southwestern Malabar region of India
Authors:   Biostatistician Technician, IQVIA, World Trade Center Kochi (Brigarde), 7th floor, Tower A, Info Park SEZ, Info Park Phase-1 Campus, Kakkanad, Kochi, Kerala, India., Prasad Amitha , Vasudevan Senthilvel ,   Assistant Professor of Statistics (Biostatistics and Epidemiology), Department of Pharmacy Practice, College of Pharmacy, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.
Published: February 2022

Background: Diabetic Retinopathy is a non-communicable disease and metabolic disorder. It is a public health problem in Worldwide. In this paper, finding influencing factors and how much probability to development of DR among known T2DM patients. Materials and Methods: This was a hospital-based cross-sectional and observational study among T2DM patients, with and without DR in the diabetes clinic with sample of 150 patients. Statistical analysis used chi-square and binary logistic regression analysis was used to identify correlates of DR after controlling of confounders. Results: In this present study, among 150 patients, 39 (26%) patients had DR. Smoking habit was strongly associated with development of DR (AOR=15.39, p=0.002), patients had history of hypertension was associated with DR (AOR=1.10, p=0.016), medication, in that insulin users were strongly associated with DR (AOR=5.72, p=0.002), duration of diabetes mellitus with >10 years was associated with DR (AOR=1.18, p=0.001), total cholesterol with abnormal was 5-fold more increase in risk with the development of DR (AOR=5.86, p=0.065) but not significant, high hba1c with >6.5% was associated with the progression of DR (AOR=1.34, p=0.035), and fasting blood sugar with abnormal was associated with the progression of DR (AOR=1.01, p=0.027) except age but, showed positive association with DR. Probability of developing DR in a T2DM patient was 98%. Conclusion: From this study, we revealed that influencing variables were hba1c, smoking habit, intake of tablet/insulin, duration of DM, history of hypertension and fasting blood sugar. The chance/probability of developing retinopathy was very high among known diabetes patients those who had longer duration of DM. Hence, we have recommended a periodic eye screening is mandatory in T2DM patients. Keywords: diabetes mellitus, diabetic retinopathy, influencing factors, probability, multivariate analysis
On tropical Drosera rotundifolia L.
Authors: Fleischmann Andreas
Published: February 2022

Two aspects on the morphology and biology of the Philippine population of D. rotundifolia were not answered by Coritico and Fleischmann (2016), namely its seed morphology and seasonal growth cycle - especially regarding hibernaculum formation, as it is known from its temperate congeners. These gaps can now be covered from observations made from cultivated plants and shall be reported here. Further aspects on the biology of Philippine D. rotundifolia (and other tropical populations of temperate Drosera) in cultivation and natural habitat are presented.
Does urban renewal impact social interaction in public open space? Evidence from Sham Shui Po, Hong Kong
Authors: HE Yuxiao , TALAMINI Gianni , JIANG Luzheng
Published: February 2022

Urban renewal positively impacts the development of cities, enhancing building quality in deprived urban areas. However, relatively little research has been conducted on the relationship between urban renewal and social interaction in public open space. Does urban renewal have a positive impact on face-to-face social interaction? This study aims to answer this question, using the revelatory case of Sham Shui Po, a neighbourhood in Hong Kong undergoing fast urban renewal. We identified 5,372 individuals engaging in social interaction on a total number of 9,343 observations. We employed behaviour mapping and statistical analysis to investigate the association between building age and social interactions. The results show a strong linear correlation between the two variables demonstrating that in Sham Shui Po, urban renewal is detrimental to life between buildings.
A formação de professores no curso de Licenciatura em Computação: um relato das práticas educacionais de iniciação a docência
Authors: Almeida Cristina C. , Carvalho Luciano P.
Published: February 2022

O curso de Licenciatura em Computação do IFSULDEMINAS - Campus Machado busca capacitar futuros educadores na área de informática para atuação nas redes de ensino público e privado. Para isto, o curso procura oferecer ao futuro professor uma visão tecnológica em computação para que possa desempenhar suas atividades com profissionais de outras áreas, as quais podem integrar a computação ao aprendizado dos conteúdos de outras ciências. Contribuições significativas têm sido dadas através das práticas de ensino como componente curricular e pela participação dos alunos no PIBID/CAPES - Programa Institucional de Bolsas de Iniciação à Docência.
Aligning Digital Storytelling to The TPACK Framework: A Learning Experience for Pre-Service Teachers in A Learning-By-Designing Project
Authors: Harriman Cátia Luzia Silva , Branch Robert Maribe
Published: February 2022

This article describes research that explored the role that the TPACK (Technological Pedagogical Content Knowledge) framework had on digital storytelling, a design-based learning opportunity for pre-service teachers taking a technolgy integration course. The results indicated that there were gains in the technological pedagogical and content knowledge of the pre-service teachers involved in the research and that they acquired a holistic view of the process of teaching with technology, as a consequence of their participation in the designed digital storytelling project.
Desafios do uso da Tecnologia Informação e Comunicação na Inclusão Digital de Professores de uma Escola Pública Quilombola
Authors: Müller Liziany , Bastos Giséli Duarte , Bandeira Andrieli Hedlund , Barin Cláudia Smaniotto , Marshall Débora , Biondo Jean Cecchin
Published: February 2022

O escopo deste trabalho é a discussão acerca da inclusão digital e a reflexão sobre a inserção das TIC como ferramentas de apoio pedagógico na Escola Municipal Manuel Albino Carvalho, visando a democratização ao acesso da informação respeitando as peculiaridades e particularidades da cultura afro-brasileira do Quilombo de São Miguel. A metodologia foi da pesquisa exploratória qualitativa sendo os dados avaliados a partir da aplicação de questionários tipo survey. Os resultados obtidos apontam para o desafio do uso das TIC no ensino tanto no que tange a capacitação adequada dos professores quanto ao planejamento e a metodologia que promovam a motivação dos estudantes e dinamização do processo ensino-aprendizagem vinculados às realidades sociais.
Desenvolvimento de um Sistema Web para Visualização de Imagens Microscópicas: Resultados Iniciais e Próximos Passos
Authors: Olguín Carlos José M. , Brancalhão Rose Meire C. , Schmitt Marcos F. , de Lima Bernardo
Published: February 2022

O microscópio de luz é um instrumento didático de fundamental importância nos processos de ensino e aprendizagem de tecidos corpóreos. Contudo, tal instrumento nem sempre está disponível ao estudo nos ensinos de graduação, pós-graduação e, em especial, no ensino básico. Com isso, a criação de um Atlas Virtual Histológico, aliado a ampla acessibilidade da internet, possibilitará uma fonte alternativa de informações na construção do saber científico. Diferentemente dos Atlas disponíveis na literatura, que normalmente apresentam a imagem de determinado tecido em apenas um aumento, o Microscópio Virtual, proposto neste estudo, irá apresentar a imagem em aumentos progressivos, de forma a simular uma visualização no microscópio. Este artigo apresenta o estado atual do desenvolvimento do microscópio virtual e próximos passos.
Novas Tecnologias na Educação: Transformações da Prática Pedagógica no Discurso do Professor
Authors: Molin Suênia Izabel Lino , Raabe André
Published: February 2022

Este artigo apresenta os resultados de uma pesquisa que investigou as percepções de um grupo de professores sobre possíveis transformações ocorridas em suas práticas pedagógicas após terem participado do Curso de Formação Continuada "Introdução à Educação Digital", evento promovido pelo Programa Nacional de Formação Continuada em Tecnologia Educacional (Proinfo Integrado) e desenvolvido pelo Núcleo de Tecnologia Educacional (NTE) de Itajaí/SC. Os dados foram coletados por meio da aplicação de dois questionários denominados pré-curso e pós-curso. Os resultados apontaram que, após a participação nesse curso, ocorreram mudanças na prática pedagógica, com incremento no uso técnico-pedagógico do computador e introdução de recursos mais avançados. Contudo, a pesquisa também revelou que o número de professores que usam o computador nas atividades com os alunos é ainda pequeno e este uso se restringe aos laboratórios de informática das escolas.
O Ensino de Ciências em Escolas UCA: Uma Análise das Estratégias de Mediação Didática
Authors: Lima Filho Cícero Bandeira , Castro Filho José Aires de , Campos Arliene Santisteban
Published: February 2022

Este trabalho teve como propósito refletir sobre a utilização do laptop educacional em escolas contempladas pelo Programa Um Computador por Aluno (UCA). Considerando que uma das propostas centrais do UCA é a adoção de metodologias que favoreçam o surgimento de práticas colaborativas entre alunos e professores, analisamos planos de aula produzidos em escolas participantes do programa e disponibilizadas no Portal do Professor, a fim de verificar como o laptop está sendo utilizado e partir de quais estratégias de mediação. A pesquisa tem caráter qualitativo e voltou-se para a disciplina ciências naturais, do ensino fundamental II. OS resultados desta análise serão apresentados a seguir.
Os processos de Multi, Inter e Transdisciplinaridade em um Curso voltado para a Formação Continuada de Professores em Informática na Educação
Authors: Nobre Isaura Alcina Martins , Nunes Vanessa Battestin , Fávero Rutinelli da Penha , Gava Tânia Barbosa Salles , Bazet Lydia Márcia Braga
Published: February 2022

Este artigo tem por objetivo compartilhar as experiências de planejamento e desenvolvimento de um curso de Pós-Graduação, ofertado na modalidade a distância, que contou com o estudo e a integração da equipe em busca de uma proposta multi, inter e transdisciplinar de ensino, visando oferecer formação continuada a professores nas áreas de Informática na Educação.
Processo de Implantação do Projeto Um Computador por Aluno
Authors: de Andrade Elisa Daniele , Hubel Nayron , Gomes Mônica de Fátima Jess
Published: February 2022

Este artigo tem como finalidade explanar a implantação por iniciativa e recursos próprios do Projeto UCA (Um Computador por Aluno) em um município da Região Metropolitana de Curitiba, capital do Estado do Paraná, visando salientar a importância do Projeto como um todo, desde a estruturação da escola para receber os Laptops Educacionais, a conscientização da comunidade escolar a respeito da utilização deste recurso e também a formação continuada de todos os profissionais envolvidos no Projeto.
Projeto Lótus: Um relato da transformação de máquinas caça-níqueis em computadores de apoio ao ensino fundamental
Authors: Bortoluzzi Fabrício , Wernner Hendrig , Carneiro Ana Carolina R. , Raabe Renate , Raabe André
Published: February 2022

Este artigo descreve o modelo de trabalho adotado pelo Projeto Lótus para a transformação de máquinas caça-níqueis em computadores com o sistema operacional Linux e a suíte educacional GCompris como um esforço para melhorar a inclusão digital nas escolas municipais do ensino fundamental em Balneário Camboriú, SC. Os resultados obtidos entre 2009 e 2012 foram a instalação de 12 laboratórios nos núcleos de educação infantil, 122 computadores e um total de 2.433 estudantes favorecidos.
Reflexões sobre o Uso da Tecnologia Digital da Informação e Comunicação na Formação do Licenciando de Ciências
Authors: de Lima Luciana , Ribeiro Júlio Wilson , Costa Mário Jorge Nunes , Loureiro Robson Carlos
Published: February 2022

Busca-se analisar as relações estabelecidas entre os conhecimentos prévios e as propostas de ação pedagógica de licenciandos na área de Ciências concernentes ao uso das TDIC na escola. A pesquisa foi efetivada junto a licenciandos das áreas de Ciências Biológicas e Física, no semestre 2011.2 e se caracteriza como Estudo de Caso. Subdividida nas etapas: conhecimentos prévios; planejamento de aula e análise de dados, utiliza questionários e planos de aula digitais como instrumentos de coleta de dados. Constatou-se que os licenciandos apresentam uma visão aplicacionista do uso das TDIC nas aulas de Ciências, com possibilidades de mudança nos casos em que se colocam a favor da construção do conhecimento a partir da reflexão.
Uma Reflexão sobre o Projeto Um Computador por Aluno - UCA
Authors: Marques Antonio Carlos C. , de Jesus Andreia
Published: February 2022

Este artigo tem como objetivo fazer uma reflexão crítica da condução do Projeto Um Computador por Aluno - UCA. Partiu-se da premissa de que os computadores são um importante apoio para a modernização do sistema educacional, mas ainda não foram aproveitados em toda sua plenitude. A falta de preparo dos professores para o Projeto UCA é visível e não está atendendo às demandas, deixando claro que a inclusão digital no Brasil ainda é uma utopia, pois poucas ações do Governo têm a finalidade da equiparação de oportunidades a todos os cidadãos. Desse modo, as práticas do Projeto UCA estão bem longe do esperado e isso exige que o formador e o conjunto de atores sociais envolvidos se apoderem mais amplamente desse instrumento, para evoluir em seu trabalho pedagógico.
Usando heurísticas de Nielsen para avaliar objetos de aprendizagem e softwares educacionais: um estudo exploratório na área de Matemática para ensino superior
Authors: Borges Karen Selbach , Rapkiewicz Clevi Elena , Feijó Ana Carolina
Published: February 2022

Atualmente é possível encontrar diversos repositórios de objetos de aprendizagem (OAs) no Brasil. No entanto, poucos desses repositórios tiveram o seu conteúdo analisado, principalmente sob o foco da avaliação de usabilidade Nesse contexto o presente artigo verifica a possibilidade de aplicação de critérios de usabilidade na avaliação de OAs. Para tanto, adotou-se como base um estudo exploratório realizado com objetos de aprendizagem na área de Matemática para o ensino superior.
Gestational Endotheliopathy as Trigger Disorder of Haemodynamics Pregnancy Supply
Authors: Konkov Dmytro , Belkania George , Dilenyan Levon , Rud Victor , Puchalska Liana , Piskun Alina , Klimas Larisa
Published: February 2022

The idea for this study is based on endothelial-dependent adaptation of hemodynamic circulation in pregnancy. The optimization of the circulatory component of the cardiovascular system (CVS) during pregnancy via blood pressure (BP), especially in physiological pregnancy (PhP), is accompanied by a clear overall increase in systolic characteristics of the pumping function of the heart. This orientation in cardiac output (CO) is unambiguously manifested throughout all three trimesters as with PhP—in a prone and standing position in total according to 24 characteristics out of 24 (P < 0.01), while for gestational endotheliopathy (PaP)—by 18 out of 24 (P < 0.05) clear restructuring of the dynamic organization of the circulatory state according to the anthropophysiological ratio to the hyperkinetic state according to CO in a standing position (type III) was noted with all blood pressure (BP) regimes. If the manifestation of type III under hypotonic, normotonic, and hypertonic regimes in BP was 8, 12, and 6%, respectively, then in the case of PhP, it was 21, 36, and 50%, respectively (P < 0.01), and for PaP, it was 48, 66, and 76% (P < 0.01). Hemodynamically identified heart failure (HF) syndrome, as the earliest preclinical circulatory endothelial-dependent form, is examined as a trigger of formation of perinatal pathology corresponding to preeclampsia.
The Prevalence of Low Back Pain and Evaluation of Prevention Strategies among the Electrophysiology and Catheterization Laboratory Community (Physicians, Nurses, Technicians) in Rural Hospitals
Authors: Sawalha Khalid , Beresic Nicholas , Khan Shoaib , Kamoga Gilbert-Roy
Published: February 2022

Musculoskeletal disorders, such as low back pain, are a common and costly problem in today’s workforce. Employees who work in a rural hospital’s electrophysiology (EP) or catheterization lab (Cath lab) appear to be especially susceptible to injury. This increase in risk has been attributed to a shortage of physicians, less community-based resources available to hospital staff, and the forward-flexed postures EP/Cath lab professionals maintain for extended periods of time while working in the operating room. Traditionally, exercise and physical activity routines, health education, and continued management support have been promoted as low cost/low risk interventions to address low back pain. However, the extent to which hospital policy and culture enable these prevention strategies to be implemented is unknown. Thus, the objective of this study was to determine the prevalence of low back pain in rural EP/Cath laboratories and the significance of exercise and physical activity routines, health education, and continued management support as low back pain prevention strategies in the rural EP/Cath lab community.
Management of Traumatic Brain Injury
Authors: Wunna Htay Soe
Published: February 2022

Head trauma or traumatic brain injury (TBI) is one of the most serious, life-threatening conditions in trauma victims. Prompt and appropriate therapy is essential to obtain a favorable outcome. The aim of the acute care of patients with brain injury is to optimize cerebral perfusion and oxygenation and to avoid secondary brain injury. Secondary brain injury develops with times and cause further damage to nervous tissues. The common denominators of secondary injury are cerebral hypoxia and ischemia. A systemic approach such as the Advanced Trauma Life Support (ATLS) algorithm has been recommended for managing head injury patients. Quick initial assessment of the patient’s neurologic condition thoroughly is mandatory. There should be attention in evidence of intrathoracic or intraperitoneal hemorrhage in multiple traumatized patients. Optimizing the open airway and adequate ventilation depending on patient’s neurologic condition is first step in emergency therapy. Cerebral perfusion pressure should be maintained between 50 and 70 mmHg. Systemic hypotension is one of the major contributors to poor outcome after head trauma. Careful stabilization of the blood pressure with fluid resuscitation and a continuous infusion of an inotrope or vasopressor may be necessary. Standard monitoring with direct arterial blood pressure monitoring and periodical measurement of arterial blood gases, hematocrit, electrolytes, glucose, and serum osmolarity are important. Brain monitoring as with an electroencephalogram, evoked potentials, jugular venous bulb oxygen saturation (Sjo2), flow velocity measured by transcranial Doppler (TCD), brain tissue oxygenation (btPo2), and ICP monitoring may be used. The reduction of elevated ICP by means of giving barbituates, hyperventilation, diuretics and hyperosmolar fluid therapy, body posture and incremental CSF drainage are critical. Seizure prophylaxis, early enteral feeding, stress ulcer prophylaxis, prevention of hyperglycemic state, fever and prophylaxis against deep venous thrombosis in neurointensive care unit are also important after successful resuscitation of head trauma patients.
Post-Neo-Kantianism and/or Transcendental Idealism
Authors: Belov Vladimir , Lebedeva Anastasia
Published: February 2022

This article explores the development of continental philosophy of critical transcendentalism after World War II. The intention to interpret Kant’s transcendentalism corresponds both to the demand to establish feasibility and necessity of conclusive rational grounds for the validity of our cognition and to the need to legitimise the claim of philosophy to be irrefutable in the justification of its principles. While resisting attempts to find the basis for the determination of reason outside the reason itself, post-neo-Kantian continental transcendentalism also rejects the voluntarist scheme of the constructive relation of reason to the external environment. This approach implies the emergence of philosophical projects that offer alternatives to the postmodernist relativisation of philosophical results and to the skepticism that emerges within that framework.
Scheming the Political Landscape: A New Communist Domain
Authors: Wang Yin
Published: February 2022

The paper analyses and interprets Western radical left-wing scholars’ view on communism from the three dimensions of Ego, Other and the World in the modern philosophical context. The purpose of the research is to compare and reconstruct the three scientific categories of relations represented by communism, namely, the logical dialectical relations of Ego domain, Other domain and the World domain. The theoretical reconstruction and contextual analysis of Jacques Lacan and Sigmund Freud’s psychoanalysis, as well as numerous researchers of their work are used. The methodological basis of this research is a philosophical reconstruction and deductive speculation, inductive speculation and insight speculation approach. It is shown that the radical left scholars reexamine the evolution of communism from three basic categories: imaginary domain, symbolic domain and real domain. Furthermore, they reconsider the construction of communism through the study of the interrelations among Ego, Other and the World. Simultaneously, they also excavate the structural contradiction of contemporary capitalism and criticise its deficiencies. The weaknesses of the argument about these relations are shown by reconstructing this upward spiral relations, which can be considered an ideal model of domain structure in ‘The Neo-Communist domain’. On the basis of this claim, it is shown that these three types of domain structures may well coexist at least in ideal society, thus mankind should adhere to Marx’s dialectical materialism to consider problems. The scientific significance of the research is justifying that the philosophical reconstruction does not only enrich Marxist communist ideology and is of great practical significance for Socialist countries to reshape the ideals and beliefs of Marxism, but also stick to the development of Marxism and to expand the research horizon of communism. Nevertheless, the communist thought of western radical left scholars still has the dilemma of separating theory from practice and failing to transform theoretical communism into combatant communism.
Ethno-cultural identity manifestation: Varėna District children’s folklore groups
Authors: Zabielienė Aušra
Published: February 2022

At present, the Dzūkija ethnographical region has the largest number of folklore groups in Lithuania. There are 23 adult and 12 children’s folklore groups in the District of Varėna alone. This article seeks to reveal realities of the Varėna District children’s folklore groups. The major objective of children’s folklore groups is education. In primary schools, the learning process of folk songs and dances is carried out alongside with playing, teaching and communication. Alongside with their direct responsibilities, leaders of children’s folklore groups are often forced to act as social workers and even as psychologists. Some of the children attending Varėna District folklore groups come from asocial families. For such children, folklore activities serve as a means of social integration. The survey of motivations stimulating children’s involvement in ethno-musical activities has revealed that children attending folklore groups name singing in the first place. Concerts and concert tours take the second score. Tradition continuity for children is in the forth position. Analysis of children’s folklore group activities has shown that folklore groups acting at schools and culture centres are almost the only remaining place where the ethno-cultural identity of children and youth can be actively nurtured by promoting the continuity of ancient ethno-musical traditions.
Imaginación crítica
Authors: Garcés Marina
Published: February 2022

Cuando los hechos se convierten en predicciones o incluso en profecías catastróficas, solo pueden ser acatados o negados. La imaginación crítica queda entonces bloqueada en una doble experiencia de la ausencia de límites: la ausencia de límites que conduce al Apocalipsis o la ausencia de límites de la producción de imágenes en la fábrica global de la innovación y la creatividad. La tradición crítica acertó desde un principio al establecer que la condición para la verdadera autonomía (de la razón, de la decisión o del aprendizaje) es poder participar en la elaboración de los propios límites. Este artículo parte de la hipótesis de que el pensamiento crítico necesita elaborarse hoy en alianza con una ecología de la imaginación. La crítica es el arte de los límites, del examen y del discernimiento cauteloso acerca de las producciones humanas y de sus condiciones de posibilidad. La imaginación es la relación viva con ellos. Se sitúa en un «entre» que enlaza, más allá del principio de no contradicción, el ser y el no ser bajo sus distintas formas: lo que sabemos y lo que no sabemos, lo que vemos y lo que no vemos, así como las distintas dimensiones del tiempo. Por eso, como argumentaremos a lo largo del artículo, la imaginación es una potencia de la extrañeza que nos devuelve la posibilidad de relacionarnos con un mundo y una temporalidad comunes, pero no únicas.
Cultura de la participación cívica: movilización transmedia y hacktivismo en comunidades de práctica (casos de fans y makers)
Authors: Corona-Rodríguez José Manuel
Published: February 2022

Este artículo presenta los resultados de una investigación etnográfica sobre las prácticas de participación (orientadas a causas cívicas) realizadas por dos comunidades de práctica en el contexto de la cultura participativa. Se propone el concepto de cultura de la participación cívica como una apuesta por evidenciar las prácticas de participación relacionadas con temas y causas cívicas, a partir de relatos y discursos mediáticos ficcionales y basados en el movimiento maker. La metodología desarrolla una estrategia que recupera las formas de agencia comunicativa presencial y virtual de las personas integrantes de dos comunidades de práctica. Se realiza una propuesta de categorización de las prácticas observadas a partir de la movilización transmedia que incorpora referentes de la cultura popular al involucramiento cívico de los participantes, y de una forma de hacktivismo fan caracterizado por el uso creativo y alternativo de la tecnología digital y analógica para la resolución de problemas sociales.
Jugabilidad asíncrona. Los rasgos del videojuego en el cine experimental y la videocreación
Authors: Alcoz Albert
Published: February 2022

Existen numerosas obras audiovisuales creadas por cineastas y videoartistas que anticipan recursos visuales y propuestas conceptuales aplicados posteriormente al ámbito de los videojuegos. El cine experimental y la videocreación no solo influyen en la implementación de estrategias estéticas y narrativas introducidas en la cultura del videojuego, sino que también son permeables a esta. Así, diversos juegos de ordenadores, máquinas de arcade y videoconsolas sirven como inspiración para realizar piezas videográficas que problematizan los usos y abusos de una industria en auge constante. Reflexionar sobre la idiosincrasia de esta conexión bidireccional es el propósito de un texto que pone en juego el valor de una serie de intercambios perceptibles en ambas disciplinas. De este modo, se estudian los inicios de la creación de imágenes por computadora (CGI) en diálogo con la animación abstracta; el carácter interactivo de los videojuegos en consonancia con videoinstalaciones coetáneas; los juegos de simulación y los first-person shooter (FPS), junto al punto de vista subjetivo en las prácticas fílmicas de vanguardia; el reciclaje de imágenes digitales extraídas de videojuegos de acción en el género de la machinima y la radicalidad de los discursos políticos presentes en los artists’ game mods. Estos son los apartados explorados en un texto que propone un acercamiento transversal al mundo del videojuego, dejando de lado el cine de ficción para concentrarse en el cine experimental y la videocreación. Abordar las similitudes formales e ideológicas que estos últimos tienen con el universo virtual del videojuego son objetivos prioritarios de un artículo que constata el carácter asíncrono de estas influencias. Observar cómo este intercambio incrementa exponencialmente alcanzada la era digital es un signo del fructífero devenir que supone este encuentro.
Entrepreneurship in The System of Resources for The Urban Agglomeration Development: The Case of Krasnodar City Agglomeration
Authors: Kolba Alexey , Tereshina Maria
Published: February 2022

Entrepreneurs, as a rule, are one of the significant subjects in the urban agglomeration development. Agglomeration effects create new business opportunities. However, analysis of specific situations does not always confirm these theoretical provisions. The results of the study conducted by the authors in the form of an expert survey to identify the problems and resources of the development of Krasnodar city agglomeration show that the development business is the most active participant and stakeholder in this project. At the same time, companies operating in this area prefer not to take their interests into the public space, but to implement them as part of lobbying activities at the level of regional authorities and municipalities. The interests of entrepreneurs representing other sectors of the economy are latent, and entrepreneurs, being potential beneficiaries of the systemic agglomeration development project, at this stage do not act as an independent entity. Opportunities and risks for most entrepreneurial structures (primarily small and medium-sized businesses) are not aggregated and articulated, which does not allow them to become a driver of agglomeration processes.
Renewable Energy Promotion with Economic Incentives: The Case of the EU
Authors: Melnyk Leonid , Kubatko Oleksandr , Piven Vladyslav
Published: February 2022

The paper investigates the economic ways of green energy promotion in the European Union. It is stated that environmental friendliness and economic expediency are the main drivers of renewable energy development. The paper emphasizes that the EU has significant achievements in green energy promotion. The EU encourages the use of renewables in a variety of ways, including tariff and non-tariff instruments. In the research different economic incentives are classified by certain criteria. It is outlined in the research that the feed-in tariff was the first and most widely used mechanism of support for green energy producers. At the same time, it is gradually being replaced by a feed-in premium (a system of allowances for additional generation). The paper also highlights the importance of non-tariff instruments, including tax incentives, green certificate system, investment grants, and subsidies.
Field-free spintronic terahertz emitters based on IrMn/Fe/Pt exchage bias heterostructures
Authors: Zhu Zhao-Zhao , Feng Zheng , Cai Jian-Wang ,   Beijing National Laboratory for Condensed Matter, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China,   School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China,   Microsystem and Terahertz Research Center, China Academy of Engineering Physics, Chengdu 610200, China,   Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China
Published: February 2022

Spintronic terahertz (THz) emitter has more advantages such as lower cost, broader spectrum and easier operation than the commercial THz emitters, and thus has become a focus of research towards the next-generation THz source. However, in such a spintronic THz emitter, an external magnetic field is technologically required to align the orientation of the magnetization, which is detrimental for practical applications. Here, a spintronic terahertz emitter based on IrMn/Fe/Pt exchange bias structure is presented. By means of ultrafast spin injection on Fe/Pt interface followed by the spin-to-charge conversion in Pt, plus the effective magnetic field originating from the IrMn/Fe interface, the THz pulse with considerable intensity can be generated in such a structure without the assistance of external field. Besides, the remanent magnetization for thin Fe layer is enhanced by inserting an ultrathin Cu layer between the IrMn surface and the Fe surface, which is beneficial to the field-free THz emission. The range of obtained dynamic THz spectrum exceeds 60 dB and the positive saturation field can reach up to ~ –10 mT by optimizing the multilayer thickness, meeting the standard for commercial application. By rotating the sample, it is found that the polarization direction of the generated THz wave circulates simultaneously and keeps perpendicular to the direction of exchange bias field in the film plane. Moreover, we design a spin valve THz emitter based on the structure of IrMn/Fe/Pt/Fe by adding a free ferromagnetic Fe layer into the exchange bias multilayers. The emitted THz pulse amplitude is larger for the antiparallel alignment of the Fe layers at zero field than for the parallel alignment or exchange bias structure. The present work shows that the spin terahertz emitter based on IrMn/Fe/Pt exchange bias structure can produce the considerable terahertz signals without external field. Furthermore, the polarization direction of the emitted THz signal can be easily manipulated by rotating the sample. Because of this series of advantages, such exchange bias heterostructures are expected to play an important role in designing the next-generation THz source.
Band Pass Negative Group Delay demonstration on a VHF RLC parallel passive lumped circuit
Authors: Sambatra E. J. R. , Mombo Boussougou Y. C. , Ramifidisoa Lucius , Kouadio J.-P. , Ngoho S. , Jaomiary A. , Murad N. M.
Published: February 2022

This paper demonstrates the bandpass (BP) negative group delay (NGD) function on a passive RLC-parallel lumped network at Very High Frequencies (VHF). After the topological description of the RLC cell, the BP NGD analysis is introduced. The NGD circuit is modelled theoretical by means of voltage transfer function (VTF) expression. The analytical equations illustrating the BP NGD specifications as the NGD center frequency, NGD value, NGD bandwidth and the VTF attenuation are established in function of the R, L and C component parameters. A proof of concept is designed, fabricated as a SMD on printed circuit board, and measured. As expected, the different models (calculated, simulated and measured) present a BP NGD and are significantly corelated. The POC prototype (resp the calculated and simulated model), presents an NGD value of - 8 ns (resp -12 ns) and attenuation of - 10 dB (resp -8 dB) around a 225 MHz (resp 240 MHz) NGD center frequency. Uncertainties analysis (UA) of BP NGD specifications is also studied in order to show the influence of quality and tolerance of components for NGD circuit. The theoretical formulas of NGD specification UAs in function of R, L and C tolerances are derived. UAs with respect to 1%, 2% and 5% relative tolerances of R, L and C components constituting the POC designed circuit are performed.
Temporal Spectrum of a Scattered Electromagnetic Waves in the Conductive Collision Turbulent Magnetized Plasma
Authors: Jandieri G. , Ishimaru A. , Rawat B. , Tugushi N.
Published: February 2022

Using WKB method the peculiarities of the temporal spectrum of an ordinary and extraordinary electromagnetic wave scattered in a weakly randomly inhomogeneous three-dimensional nonstationary and conductive magnetized plasma are investigated. On the basis of the stochastic differential transport equation for the frequency fluctuation the broadening and the displacement of the temporal spectrum for both waves are obtained for the polar terrestrial ionosphere. These statistical characteristics contains anisotropic parameters: velocity of a plasma stream, conductivities of the ionosphere, elongated electron density irregularities are characterized by the anisotropy factor and inclination angle with respect to the geomagnetic lines of forces. The analysis of the power spectrum of the waves as a function of the propagation distance and the nondimensional frequency parameter containing the carrier frequency and characteristic temporal scale of electron density fluctuations are carried out. Analytical and numerical calculations have shown that the terrestrial conductivity and anisotropy factors exert a substantial influence on evaluation of the temporal spectrum than the inclination angle. It was found that the wave spectrum increases initially as the square root of the propagation distance, but at large distances it approaches a limiting value. Statistical moments of a scattered ordinary and extraordinary waves do not depend on an absorption sign and valid for both absorptive and active media.
DBFU-Net: Double branch fusion U-Net with hard example weighting train strategy to segment retinal vessel
Authors: Huang Jianping , Lin Zefang , Chen Yingyin , Zhang Xiao , Zhao Wei , Zhang Jie , Li Yong , He Xu , Zhan Meixiao , Lu Ligong , Jiang Xiaofei , Peng Yongjun
Published: February 2022

Background

Many fundus imaging modalities measure ocular changes. Automatic retinal vessel segmentation (RVS) is a significant fundus image-based method for the diagnosis of ophthalmologic diseases. However, precise vessel segmentation is a challenging task when detecting micro-changes in fundus images, e.g., tiny vessels, vessel edges, vessel lesions and optic disc edges.

Methods

In this paper, we will introduce a novel double branch fusion U-Net model that allows one of the branches to be trained by a weighting scheme that emphasizes harder examples to improve the overall segmentation performance. A new mask, we call a hard example mask, is needed for those examples that include a weighting strategy that is different from other methods. The method we propose extracts the hard example mask by morphology, meaning that the hard example mask does not need any rough segmentation model. To alleviate overfitting, we propose a random channel attention mechanism that is better than the drop-out method or the L2-regularization method in RVS.

Results

We have verified the proposed approach on the DRIVE, STARE and CHASE datasets to quantify the performance metrics. Compared to other existing approaches, using those dataset platforms, the proposed approach has competitive performance metrics. (DRIVE: F1-Score = 0.8289, G-Mean = 0.8995, AUC = 0.9811; STARE: F1-Score = 0.8501, G-Mean = 0.9198, AUC = 0.9892; CHASE: F1-Score = 0.8375, G-Mean = 0.9138, AUC = 0.9879).

Discussion

The segmentation results showed that DBFU-Net with RCA achieves competitive performance in three RVS datasets. Additionally, the proposed morphological-based extraction method for hard examples can reduce the computational cost. Finally, the random channel attention mechanism proposed in this paper has proven to be more effective than other regularization methods in the RVS task.
Drivers of phenotypic divergence in a Mesoamerican highland bird
Authors: Robles-Bello Sahid M. , Vázquez-López Melisa , Ramírez-Barrera Sandra M. , Terrones-Ramírez Alondra K. , Hernández-Baños Blanca E.
Published: February 2022

Animals derive their coloration from a variety of pigments as well as non-pigmentary structural features. One of the most widespread types of pigments are carotenoids, which are used by all invertebrate taxa and most vertebrate orders to generate red, pink, orange and yellow coloration. Despite their widespread use by diverse animal groups, animals obligately obtain carotenoid pigments from diet. Carotenoid-based coloration is therefore modulated by evolutionary and ecological processes that affect the acquisition and deposition of these pigments into tegumentary structures. The Flame-colored Tanager (Piranga bidentata) is a highland songbird in the cardinal family (Cardinalidae) that is distributed from Mexican sierras through Central America up to western Panama. While female plumage throughout its entire range is predominantly yellow, males exhibit a noticeable split in ventral plumage color, which is bright orange on the West slope and the Tres Marias Islands and blood red in Eastern Mexico and Central America. We used Multiple Regression on Matrices (MRM) to evaluate the relative contributions of geographic distance, climate and genetic distance on color divergence and body differences between geographically disjunct populations. We found that differentiation in carotenoid plumage coloration was mainly explained by rainfall differences between disjunct populations, whereas body size differences was best explained by variation in the annual mean temperature and temperature of coldest quarter. These results indicate that climate is a strong driver of phenotypic divergence inPiranga bidentata.
СОЛНЕЧНЫЙ ВЕТЕР И ТОКОВЫЕ СЛОИ: КЛАССИЧЕСКИЕ ПРЕДСТАВЛЕНИЯ И НОВЫЕ ОТКРЫТИЯ, "Земля и Вселенная"
Authors: Кислов Р.А.
Published: February 2022

Представления о токовых слоях и солнечном ветре развивались синхронно. Фундамент современных знаний о них заложили в 1950-е и 60-е гг. советские и американские ученые. За полвека развития наши знания о гелиосфере, токовых слоях и плазме углубились, но работы отцов-основателей столь удачно смогли передать основные черты наблюдаемых явлений, что и сейчас любое отклонение от старых моделей воспринимается научным сообществом как нетривиальное, несмотря на накопившиеся противоречия и новые результаты, о которых ниже пойдет речь.