bluuebunny/crossref_metadata_2025 huggingface dataset:
Trimetazidine may normalize left ventricular systolic function and U wave polarity in severe calcific aortic stenosis
Authors: S.R. Mittal
Published: March 2021

A case of severe calcific valvular aortic stenosis with reduced left ventricular ejection fraction is presented. Patient did not agree for surgery. He was advised trimetazidine (60 mg twice a day) in addition to Torsemide, Digoxin, Aspirin and Clopidogrel. After one month, patient showed significant improvement in symptoms, normalization of U waves in electrocardiogram and significant improvement in ejection fraction. Metabolic effects of trimetazidine could be responsible for improvement in left ventricular function in spite of no change in aortic stenosis.

Keywords: Aortic valve stenosis; Electrocardiography; Left ventricular systolic function; Trimetazidine; U wave
RUSSIAN MORTGAGE MARKET AND REGISTERS OF MORTGAGE COLLATERAL OF MBS COVERED BY DOM.RF MORTGAGE AGENCY
Authors:   Postgraduate Student, Financial University under the Government of the Russian Federation, Moscow, Russia, NOVOSELOV I. A.
Published: March 2021

The article examines the main trends in the development of the Russian mortgage market and the market of mortgage-backed securities (MBS) associated with government incentive measures. We consider the importance of the registers of mortgage collateral of MBS for the assessment of various risks arising when working with these securities. We analyze the quantitative aspect of mortgage loans in collateral pools for issues covered by the guarantee of the mortgage agency DOM.RF. The analysis of pools includes the aspects of time to maturity, yield, difficultness of the collateral loans and the changes in the Loan/Value ratio. We propose the directions for the development of models for predicting the prepayment levels for mortgage collateral pools.
COMPARATIVE ANALYSIS OF FOOD SECURITY MANAGEMENT MODELS
Authors:   Doctor of Economics, Professor of the Department of Market and State Institutions of the Kuban State Technological University, Krasnodar, Russia, MOLCHAN A. S. , BOGACHEVA Zh. E. ,   Postgraduate student, Department of Economic Security, Kuban State Technological University, Krasnodar, Russia
Published: March 2021

The theoretical approaches to definition of concepts are shined in the clause. In this aspect, issues related to the issues of ensuring food security and analyzing its current state in the world economic community are considered; suggested ways to improve food security.
METHODOLOGICAL ASPECTS OF INNOVATIVE PROJECTS MANAGEMENT
Authors:   Senior Lecturer, Department of Human Resource Management, Samara National Research University named after Academician S. P. Korolev, Samara, Russia, SOLODOVA E. P.
Published: March 2021

The article highlights the theoretical approaches to the definition of the concepts of “innovation” and “investment project”, identifies their common and specific features. The analysis of the scientific literature led to the conclusion: project management requires constant monitoring of work and processes, which determines the need for a detailed decomposition of the innovation life cycle. The author summarizes and structures the approaches to the content of the phases, stages and stages of the innovation project. The work is interdisciplinary, written at the intersection of innovation and investment management. This view will be of interest to risk managers and economists, specialists in the field of project management, including innovative ones.
APPLYING THE CONCEPT OF 6 SIGMA IN THE HOSPITALITY INDUSTRY
Authors:   Assistant of Department of Hospitality, Tourism and Sports Industry, Plekhanov Russian University of Economics, Moscow, Russia, JARROUJ G. , HASAN S. ,   Post-graduate student of Department of Hospitality, Tourism and Sports Industry, Plekhanov Russian University of Economics, Moscow, Russia
Published: March 2021

Lean and Six Sigma are the two most important methods in assessing the quality of business processes in many industries, helping organizations achieve higher efficiency and improved operational efficiency. Both methods are vital to the hospitality industry, giving hotels a competitive advantage by improving customer service efficiency, leaving guests with a good experience, and providing a high quality of service. By combining these two methodologies, it is possible to anticipate and meet the specific expectations and needs of guests.
DIGITAL TRANSFORMATION OF THE ACTIVITIES OF RUSSIAN ENTERPRISES AS A DRIVER OF THEIR DEVELOPMENT IN THE CONTEXT OF THE CORONAVIRUS PANDEMIC
Authors:   Candidate of Economic Sciences, Associate Professor of the Department of Economics and Man-agement Leningrad State University named after A. S. Pushkin, Saint Petersburg, Russian Federation, OLEKHNOVICH S. A. , SAZHNEVA L. P. ,   Candidate of Economic Sciences, Associate Professor of the Faculty of Technological Management and Innovation, St. Petersburg National Research University ITMO, Saint Petersburg, Russian Federation
Published: March 2021

The article examines the relevance of transformation processes in the activities of Russian enterprises during the COVID-19 pandemic. The authors provide data on the current state of such processes in today's practice, show the benefits of digital transformation, and ways to implement it. The article shows that only the use of a systematic approach in the implementation of transformation processes is able to neutralize the negative conse-quences of the coronavirus pandemic in business practice and activate them as a driver for the development of modern enterprises when they overcome crisis phenomena.
The Relationship of Hope with Life Satisfaction through the Path of Resilience
Authors: Zia Ur Rehman  , Abdul Khaliq Alvi  , Zaeem Ahmad
Published: March 2021

This research aims to check the mediating role of resilience between the relationships of hope with life satisfaction. Hope and mindfulness are independent variables and life satisfaction is the dependent variable. This is cross-sectional research and data was collected from 350 employees of an engineering company randomly.  Simple linear and multiple regression analyses are performed for testing the hypotheses of the study. Results indicate that hope has a direct positive impact on life satisfaction and resilience respectively. Moreover, resilience is partially mediating the relationship of hope with life satisfaction. The current study considers only the employees of Mott MacDonald Group. Current research is a case study on Mott MacDonald Group, so cannot generalize the results on other types of industry and describes only a few predictors of life satisfaction. Future researches will also conduct on the same kind of engineering firm for generalization.  In future researches, some other variables as predictors and outcomes may also include for explaining the phenomenon of life satisfaction. It is also beneficial to conduct this kind of research on sectors like the textile sector, banking sector, and telecom sector. Life satisfaction is very supportive for the organizations to maintain balance in work and lives of employees which may result in dedicated employees. The proposed research model of life satisfaction is satisfactorily supported by empirical tests.
Teaching Power Construction in EFL Classes through Tweets: A Discourse Analytic Based Study
Authors: Dr. Mamona Yasmin Khan  , Syeda Aeliya Raza  , Farhana Yasmin
Published: March 2021

Communicative approaches and methods are still found to be inadequate in addressing the pedagogical issues of EFL learners. In developing countries, there is a dire need for EFL teachers to make the students understand and deconstruct ideologies embedded in the English language. The study sets out to define and explore the ways and dimensions of Critical Discourse Analysis that will assist EFL teachers to reveal and teach power constructions embedded in language. This study focuses on The Ideological Square Model of CDA proposed by Van Dijk (2000). Following a mixed-method approach, twenty tweets of Donald Trump are selected through random sampling dated from 27th May to 5th October 2020. The analysis reveals that Trump’s tweets expose polarization, use of pronouns (54% in-group pronouns, and 46% Out-group pronoun) emphasize positive In-Group representation. These ways expose the stances of extreme power use, criticism, and discriminatory attitude towards Out-Group and reveal that the centralizations of all authorities are entitled to In-Group that holds the status quo. The research implies that EFL learners will be better able to aware of ideological constructions of language by the CDA in teaching. This study can be expanded by adopting CDA as a teaching tool in EFL classes, which can be used to expose and deconstruct many other ideologies like, Feminism, Racism, and Marxism etc. that are rooted in language.
Combined effects of nonuniform temperature gradients and heat source on double diffusive Benard-Marangoni convection in a porous-fluid system in the presence of vertical magnetic field
Authors: Manjunatha N. , Sumithra R. , Vanishree R.K.
Published: March 2021

The physical configuration of the problem is a porous-fluid layer which is horizontally unbounded, in the presence of uniform heat source/sink in the layers enclosed by adiabatic and isothermal boundaries. The problem of double diffusive Bènard-Marangoni convection in the presence of vertical magnetic field is investigated on this porous-fluid system for non-Darcian case and is subjected to uniform and nonuniform temperature gradients. The eigenvalue, thermal Marangoni number is obtained in the closed form for lower rigid and upper free with surface tension velocity boundary conditions. The influence of various parameters on the Marangoni number against thermal ratio is discussed. It is observed that the heat absorption in the fluid layer and the applied magnetic field play an important role in controlling Benard-Marangoni convection. The parameters which direct this convection are determined and the effect of porous parameter is relatively interesting.
Penerapan Model Pembelajaran Realistic Mathematics Education (RME) Terhadap Kemampuan Pemahaman Konsep Matematis Siswa
Authors: Sastia Reta
Published: March 2021

Penelitian ini bertujuan untuk melihat adanya pengaruh pendekatan matematika realistik terhadap kemampuan pemahaman konsep matematika siswa kelas VIII SMP pada materi prisma. Metode penelitian yang digunakan dalam penelitian ini adalah metode kualitatif dengan jenis penelitian studi kepustakaan. Dari hasil tersebut dapat disimpulkan bahwa penggunaan model pendekatan Realisik Matematika Education (RME) berpengaruh positif terhadap kemampuan pemahaman konsep matematika, hal ini disebabkan karena dalam penerapan model pembelajaran  tersebut  (1) Siswa dapat membangun sendiri pengetahuannya sehingga siswa dapat lebih mudah memahami konsep dan tidak mudah lupa dengan pengetahuannya, (2) Siswa diberikan permasalahan matematika yang berkaitan dengan permasalahan kehidupan sehari-hari mereka, (3) Kegiatan di dalam kelas pada saat proses belajar menarik dan juga menyenangkan oleh sebab itu siswa lebih cepat memahami konsep dan tidak cepat bosan untuk belajar matematika
The Study of Consumption Decision Key Factors In Chinese Wedding Banquet
Authors: Lo Chun-Hsien , Wan Tung-Hsuan , Wong Jehn-Yih , Hsieh Yi-Fang
Published: March 2021

Marriage is a once-in-a-lifetime experience for most people and all new couples want the details to be perfect for a good memory. However, in the Chinese world, it is not up to the new couple to decide all details of a wedding banquet on their own, the opinions of their parents must
be considered. Therefore, under the circumstances of many decision makers with different expectations, wedding consumption decisions become onerous and complex. In this study, we used the focus group method to obtain the factors for the selection of the wedding restaurant and confirmed the
key facets and criteria of the factors of wedding restaurant selection and the consumption value model through the Delphi method and then looked for the important correlation among the factors and their causal relationship through DANP analysis. The research shows that the most critical facets
are "emotional value" and "social value" and that the most critical criteria are "word-of-mouth" and "restaurant evaluation." Restaurant operators are suggested to consider the needs of customers, strengthen the quality of project package content, pay attention to online comments and voice
volume, strengthen staff training, and understand consumer demands.
Latifúndio pecuarista e sesmarial
Authors: Nunes Aldo Manoel Branquinho
Published: March 2021

O presente trabalho propõe uma reflexão teórica a partir de uma revisão bibliográfica realizada no sentido de identificar como, no campo da teoria social brasileira, constitui-se e consolidou-se uma tendência que tem influenciado, de forma dominante, desde o século XVIII, a compreensão do processo de ocupação e povoamento do interior do Nordeste. Tendência que fundamentou (como estou chamando) o mito original dos Sertões nordestinos que se apoia na tese sesmarial sobre a formação territorial e na determinação do latifúndio pecuarista como base constituinte dos processos de ocupação do solo e de conformação das relações sociais que serviram para legitimar, de forma quase que inconteste, o construto teórico ideológico da “civilização do couro”. Essa dominância teórica, de certa maneira, tem acomodado muitos estudiosos do meio rural nordestino, levados muitas vezes a assumirem essa versão como pressuposto e a não se empenharem na realização de estudos com o devido rigor empírico de modo a identificar, ao longo desse processo histórico, trajetórias de povoamento e ocupação do solo diferentes, a exemplo das comunidades quilombolas e de cultivadores livres, que coexistiram, muitas vezes de forma paralela, às iniciativas de desocupação/ocupação comandadas pelo avanço das boiadas e da fundação de currais de gado ao longo do Rio São Francisco e de seus afluentes por sesmeiros e fazendeiros.
O Projeto Fosfato Três Estradas no esteio dos conflitos ambientais no Pampa Gaúcho
Authors: Botton Barcellos Sérgio , Dellagnese Prates Camila , Picon Alt Júlio
Published: March 2021

A partir deste artigo, o objetivo é analisar como se configuram os conflitos ambientais na tentativa de instalação da mineração de derivados de fosfato, em Lavras do Sul, no estado do Rio Grande do Sul (RS). O marco teórico que ampara o trabalho é constituído pela lente analítica de processo histórico de longa duração e configurações sociais, em Norbert Elias; neoextrativismo, em Eduardo Gudynas; conflitos ambientais a partir de Henri Acselrad; e Isabelle Stengers para amparar a discussão sobre os papéis desempenhados pela ciência e pela política nesses contextos. Nesta análise, serão levadas em consideração as dimensões históricas, o contexto atual da mineração nessa região, as disputas e conflitos ambientais acerca da possível instalação desse empreendimento. A metodologia é qualitativa, a partir de observação participante, análise documental e de depoimentos públicos dos atores sociais como a empresa mineradora e interlocutores (as) na comunidade estudada. Compreende-se que os conflitos ambientais entre atores “contrários” e “a favor” da instalação deste empreendimento minerário no RS estimulam processos sociais distintos. Conclui-se que há umprocesso de avanço de fronteiras de exploração ambiental e territorialização desses grupos no bioma Pampa, pelo acúmulo de capital econômico financeiro, por meio da extração de bens naturais, como minérios, e atuação de grupos transnacionais com apoio de grupos nacionais e locais.
Sensitivity Analysis of Optimal Power Dispatch for All-Electric Ship
Authors: Tsekouras George J. , Kanellos Fotios D. , Kontosoros Michalis
Published: March 2021

Shipping industry is reforming and changing fast, as the International Maritime Organization (IMO) works towards air pollution prevention and ship-owners pursue more efficient operation of their ships. Formerly, propulsion and electric load dispatch in ship power system is implemented proportionally with respect to nominal power of prime movers and generators respectively. Additionally, integrated full electric propulsion, optimal real-time dispatch to ship generators and the integration of new systems, such as energy storage systems, shaft generators etc. could have gained a wider application. In this paper the optimal dispatch for ship power system based on Lagrange method is presented comparing the classic and all-electric ship design. The developed method is applied to an ten years old Ro-Ro (roll on / roll off) passenger ship and an analytical sensitivity analysis is occurred out with respect not only to technical characteristics of the ship, such as fuel kind, propulsion chain factors, but also voyage characteristics, such as ship speed, route length etc.
Mit fordítsunk?
Authors: Goretity József
Published: March 2021

The study focuses on the reception of Russian literature, more precisely contemporary Russian literature. The author of the article examines the question whether and how much a translated literary work can become an integral part of the recipient culture and what are those fundamental aspects based upon which a national culture, as a recipient, “chooses” certain works of a foreign literature to be translated. After outlining the history of Hungarian reception of translated Russian literature the paper introduces in detail the last 35 years of Hungarian reception of Russian literature, including the well-differentiated periods and the aspects of reception. The paper aims to answer the question fundamental in Russian-Hungarian translation as well: ‘What to translate?’
Nyelvi rétegek, kulturális kódok, térképzetek Jevgenyij Vodolazkin Laurosz és Brisbane című regényeiben
Authors: Pálfalvi Lajos
Published: March 2021

The paper comprehensively interprets two novels by one of the most acclaimed Russian authors, Eugene Vodolazkin, which were published in Hungarian as well. The author of the article – as the Hungarian translator of the two texts – interprets Vodolazkin’s works as the particular meeting place of various cultural codes. Including some of the aspects of postcolonialist literary criticism he concludes that the latent imperial point of view in the novels – due to the diversity of cultural codes – cannot be transferred into the translation.
Lakonizmus Csehov prózájában és a magyar fordításban
Authors: Zoltán Dominika
Published: March 2021

The paper exemplifies how important translation analysis can be to interpret even the original work. It focuses on a certain text, the Hungarian – and in some cases the English, German and Polish – translation of the well-known Chekhov short story, "The Lady with the Dog”, to comprehensively illustrate the different translational solutions, and as a consequence it gets closer to the interpretation of the nature of Chekhov’s laconism, parabolic writing method.
A Csontbrigád orosz fordításának tiszteletteljes kritikája
Authors: Marosi Lajos
Published: March 2021

The paper introduces the criticism of the Russian translation of one of the popular novels of Rejtő, Skeletal Brigade. Demonstrating through numerous examples and by the “backwards translation” of the Russian text, the author sets out to understand through certain instances what might have caused the spectacular mistranslations in the Russian text. The article may also serve as an example for the lack of similar thorough translation criticism in Hungarian critical literature, which might contribute to the improvement of the Hungarian literature translation.
Az „izgalmas és titokzatos példa”
Authors: Gulyás Judit
Published: March 2021

Lúdas Matyi (‘Matthew, the Goose Keeper, an original Hungarian tale’), an epic poem written by Mihály Fazekas in 1804 (published in 1815 and 1817 in Vienna), is the earliest known Hungarian variant of the tale type ATU 1538 (The Revenge of the Cheated Man). The poem has been interpreted as a pioneer work that introduced a peasant hero as well as the genre of the (despised) tale into Hungarian literature. Yet, hardly any variants of this tale type have been recorded from Hungarian oral tradition in the past two centuries. The author investigates this seeming contradiction, and analysing the eight oral variants as well as popular literacy argues that it was precisely the immense (written and theatrical) popularity of the plot that probably hindered the survival of an independent oral tradition of this tale.
A fiziko-teologizmus irodalmának hazai forrásai
Authors: Imre Mihály
Published: March 2021

Our aim is to reimagine the Hungarian reception of physico-theology, demonstrating its significance in terms of the history of science and cultural science, and to present, with attention to other European sources and parallels, the cultural and literary process that leads us to the beginnings of the oeuvre of Mihály Fazekas and to the works of his contemporaries. We seek to obtain a deeper knowledge of the Hungarian and international sources of physicotheology in terms of the science of history in a Protestant environment in the 18th century, as well as of the first appearance of physico-theology in school education, scientific training and schools. In this endeavour, without attempting to be exhaustive, we have extended the sources to works of piety literature and liturgical literature. The scientific collections, manuscripts and printed materials of the Reformed College of Debrecen and the Reformed College of Sárospatak have been the subjects of this research, although western European sources have been used in the research as well. The principles of physico-theology were first widely introduced in Hungarian language in the works of Benjámin Szőnyi, followed by many of his contemporaries later on in the second half of the 18th century.
Introducción. Vila-Matas: ese “oscuro gemelo” transatlántico
Authors: Ríos Baeza Felipe A.
Published: March 2021

Introducción al dossier monográfico.
Borges y Piglia como “dinastías intelectuales” en el ensayismo de Vila-Matas
Authors: Aranda Silva Alfredo
Published: March 2021

El presente trabajo pretende poner en evidencia el predicamento poético que se sustrae de la lectura de la obra de Vila-Matas, con especial particularidad en su naturaleza ensayística, en relación a las polifacéticas influencias de Borges y Piglia. Ambos autores concentran, en efecto, el paradigma de origen latinoamericano más reconocible en torno a los puntos de fuga de desarrollo metacrítico, modos de lectura y engranaje técnico-literario en Vila-Matas. Es por ello que aprecio en Borges y Piglia una suerte de “dinastías intelectuales” en un autor que, como ocurre en el caso de Vila-Matas, es quizá por encima de todo un escritor de escritores o un escritor de literaturas que trata de crear siempre su propio lector en tanto que justificación de la escritura literaria.
Leyendo oblicuamente. Contrapuntos reflexivos de la literatura latinoamericana en la obra crítica de Enrique Vila-Matas
Authors: Ríos Baeza Felipe A.
Published: March 2021

En este ensayo se propone analizar, revisando una porción importante de los ensayos críticos que van desde El viajero más lento (1992), hasta Aunque no entendamos nada (2003), pasando por Para acabar con los números redondos (1997) y Desde la ciudad nerviosa (2000), la forma en que la literatura latinoamericana es asumida por Enrique Vila-Matas (Barcelona, 1948) con el fin de sistematizar usos y costumbres narrativos que el autor catalán emplea, luego, en su propia obra. De entrada, es posible afirmar, primero, que la literatura latinoamericana es importante en su narrativa porque se ofrece como contrapeso a otras literaturas convocadas (la centroeuropea, la francesa, la anglosajona, etc.); segundo, puede asegurarse que le permite cristalizar la manera en que opera la metaficción y la autoconciencia en sus páginas; y tercero, que con ella logra establecer definitivamente su “lugar solitario” dentro de las letras españolas, asunto que entre la década de 1970 y 1990 se había planteado más como voluntad e ideario que como elemento realmente constitutivo de su obra. Aquello se solidificará en el momento en que se aferre a los descubrimientos trasatlánticos que haga como ávido lector.
sujeto que se narra desde la muerte. Los modelos imposibles de "Las babas del diablo" y "Los nuestros"
Authors: González Blanco Azucena
Published: March 2021

El objetivo de este trabajo es, por una parte, conectar la herencia del legado foucaultiano de Los sentidos del sujeto (2016) de Judith Butler –donde Butler desarrolla su teoría del sujeto conformado antes de su propio nacimiento desde una hermenéutica del texto literario– con la herencia del sujeto de muerte de Agamben. La hipótesis de este trabajo fundamenta la configuración estética del sujeto en su dimensión ética y política. Se completa de este modo la hermenéutica retroactiva de Judith Butler con una propuesta de lectura del sujeto literario virtual como sujeto que enuncia desde muerte en las lecturas de “Las babas del diablo”, de Julio Cortázar, y Los nuestros, de Juan Carlos Reche.
Entre realidad y ficción: "Estatua con palomas", de Luis Goytisolo
Authors: Candeloro Antonio
Published: March 2021

Publicada en 1992, Estatua con palomas fue galardonada al año siguiente con el Premio Nacional de Narrativa, confirmando así el valor de la propuesta literaria de Luis Goytisolo. En esta obra, el autor amplía el reto empezado en Antagonía, su tetralogía sobre el acto de escribir y el acto de leer (publicada entre 1973 y 1981), elaborando una trama en la que se solapan: la primera y la tercera persona singular de los diferentes narradores; los espacios y los tiempos evocados (la contemporaneidad que vive el autor en la España de los años 90 y la que vive Publio Cornelio Tácito en el momento en que se desmorona el Imperio Romano y redacta sus Historias); los planes de la ficción y los de la autobiografía (el autor nos ofrece claves fundamentales incluso para poder re-interpretar de forma novedosa Antagonía). En nuestro análisis, se llevará a cabo una doble operación: por un lado, analizar en el detalle los mecanismos que el autor utiliza en relación con el concepto de metaficción y metaliteratura; por otro lado, estudiaremos en qué sentido toda autobiografía falsea los datos reales y está condenada a falsearlos, tal y como demuestran dos obras sucesivas y de explícito corte autobiográfico como son Cosas que pasan (2009) y El sueño de San Luis (2015). Tanto en estos dos casos, como en el Estatua con palomas, al lector le es asignado el papel de co-autor de la obra de ficción o pretendidamente autobiográfica.
Louis Spohr visto como eslabón perdido entre el clasicismo vienés y el romanticismo germánico
Authors: Santacecilia Oller David
Published: March 2021

En este artículo se pretende profundizar en la no suficientemente estudiada figura de Louis Spohr, enfocando su estudio desde el punto de vista de su papel fundamental y decisivo como depositario de parte de la herencia del siglo XVIII (proveniente de W. A. Mozart y J. Haydn) y su aportación a la música de autores tan dispares como F. Mendelssohn y J. Brahms por un lado y R. Wagner y F. Liszt por otro. Dentro de las múltiples facetas en las que Spohr podría considerarse un nexo de unión infravalorado hoy en día entre ambos extremos están diferentes aspectos como, por ejemplo, el origen del leitmotiv, la orquestación, la transmisión de la simbología.de ciertas fórmulas retóricas, etc. De estos aspectos se profundizará en este artículo,principalmente en el desarrollo del lenguaje armónico.
Investigación artística en música en Latinoamérica
Authors: López-Cano Rubén
Published: March 2021

La investigación artística o investigación-creación posee diversos grados de desarrollo en Latinoamérica. Si bien aún no existe una escena profesional y autónoma de esta actividad, es posible detectar una paulatina construcción de infraestructura estable para su desarrollo. Más frecuente es el caso de artistas que investigan de manera puntual pero que no están muy preocupados por construir metodologías, recursos teóricos e infraestructura de largo alcance. Las escenas más activas en la región son, por un lado, la de artistas universitarios que buscan la homologación institucional de su producción artística como investigación académica. Por otro lado, la investigación artística formativa recibe un prometedor impulso a través de diversos programas en los tres ciclos de educación superior. Este trabajo realiza una mirada panorámica y crítica al desarrollo de esta actividad en el subcontinente.
Trasplante renal en pacientes con infección por virus de la inmunodeficiencia humana (VIH)
Authors: Gómez-Dos-Santos Victoria , Santiago-González Marta , Álvarez-Nadal Marta , Galeano-Álvarez Cristina , Jiménez-Álvaro Sara , Elías-Triviño Sandra , García-Vallejo María , Mínguez-Ojeda César , Fernández-Lucas Milagros , Burgos-Revilla Francisco Javier
Published: March 2021

INTRODUCCIÓN: el pronóstico de la infección por VIH ha mejorado tras introducir el tratamiento antirretroviral de gran actividad (TARGA), no contraindicando actualmente el trasplante renal (TR). La nefropatía asociada al VIH (HIVAN) es la principal causa de enfermedad crónica terminal (ERCT) en pacientes VIH a nivel mundial. Los criterios de inclusión para TR de pacientes VIH son multidisciplinares: no infecciones oportunistas; CD4>200; carga viral indetectable. MATERIAL Y MÉTODOS: revisión de historias clínicas de 14 pacientes infectados por VIH receptores de un primer aloinjerto renal (2001-2019), seleccionados según recomendaciones de las guías españolas y americanas. La inmunosupresión se realizó según la práctica habitual en nuestro país. TARGA se inició inmediatamente tras TR. RESULTADOS: la principal causa de ERCT fue glomerulonefritis (6; 42,9%) seguida de HIVAN (4; 28,6%). 10 pacientes (71,4%) recibían hemodiálisis preTR, 7,1% se trasplantaron antes de inicar terapia renal sustitutiva. La mediana de CD4 fue 458 células/µL y todos los pacientes presentaban carga viral indetectable. 13 (92,9%) recibían TARGA preTR. 2 pacientes precisaron trasplantectomía precoz, el resto tuvieron una mediana de seguimiento de 61,0 meses. Función retrasada del injerto y rechazo agudo: 58,3% (7/12) y 33,3% (4/12) respectivamente. Mediana de creatinina a los 3 meses y en la última fecha de seguimiento: 1,3 mg/dL (RIC 0,8) y 2,1 (RIC 7,1) respectivamente. La supervivencia del injerto y del paciente a 1 (75,0%; 100%) y 3 años (67,0%; 89,0%) fue menor que en pacientes no VIH. CONCLUSIÓN: el TR es una alternativa terapéutica segura y efectiva en pacientes seleccionados con VIH.
Situación sanitaria de la población refugiada en los campos de desplazados de Grecia
Authors: Del Prado Sánchez Verónica , Giménez Pardo Consuelo
Published: March 2021

Introducción: Desde 2011 nos encontramos ante una gran crisis migratoria que en Europa afecta especialmente a Grecia. La población desplazada en Grecia la constituyen: 76.099 solicitantes de asilo, 48.026 refugiados, 13.434 en situación parecida a la de los refugiados y 198 apátridas. De ellos, un 40,6% son hombres, un 23% mujeres y un 36,4% menores. La nacionalidad más prevalente es la siria, seguida de la afgana y la iraquí.

Metodología: Se ha realizado una revisión bibliográfica de artículos científicos utilizando como buscador PubMed. Se utilizaron como filtros “free full text” y “5 years”. En total, se encontraron 342 artículos, que se redujeron a 41. Se buscó información introduciendo el término “Grecia” las páginas de Amnistía Internacional, Médicos Sin Fronteras, Médicos del Mundo y Unicef. Por último, se tomaron datos de ACNUR y OCDE.

Objetivos: Caracterizar los problemas sanitarios principales de la población migrante y realizar una valoración del sistema sanitario griego.

Resultados: Se determinan como más prevalentes las patologías relacionadas con hipotermia, infecciones y traumas, en el momento de recepción mientras que en los campos de desplazados toma especial importancia el tratamiento de enfermedades crónicas y de patología psicosocial a raíz del cierre de la ruta de los Balcanes.

Conclusiones: Debido a la crisis económica y a un sistema sanitario desigual e ineficaz, Grecia no cuenta con la capacidad necesaria de recepción de población migrante en general ni para las poblaciones especialmente vulnerables como son las mujeres y los menores no acompañados.  El cierre de la ruta de los Balcanes y el acuerdo UE-Turquía ha empeorado la situación.
Avances en el diagnóstico de la malaria en los programas de eliminación de la enfermedad
Authors: Cuadros González Juan
Published: March 2021

Uno de los aspectos clave de las estrategias actuales de control, eliminación y erradicación de la malaria es aumentar la capacidad de detección de la enfermedad con métodos cada vez más sencillos y robustos que puedan aplicarse fácilmente en el terreno. Para lograr este objetivo, es necesario mejorar la sensibilidad de la microscopía clásica con métodos de concentración de hematíes infectados, utilizar test rápidos ultrasensibles de última generación o técnicas moleculares como el LAMP, que no requieren termocicladores y pueden utilizarse en las zonas endémicas. Los sistemas diagnósticos basados en la atracción magnética de la hemozoína son una opción atractiva también para el cribado poblacional.
An integrated biostratigraphical analysis of the Volkhov–Kunda (Lower Ordovician) succession at Fågelsång, Scania, Sweden
Authors: Stouge Svend , Nielsen Arne Thorshøj
Published: March 2021

The Komstad Limestone is composed of dark grey to black micritic limestone deposited in an outer shelf environment on the margin of the East European Platform. It represents an interval of low sea level during the late Volkhov to early Kunda that led to the spread of limestones into the shale-dominated western lithofacies belt.
The Baltoniodus norrlandicus, Lenodus antivariabilis, Lenodus variabilis, Yangtzeplacognathus crassus and Lenodus pseudoplanus conodont zones were identified in the upper Volkhov to lower Kunda interval. Based on the most recent taxonomic and biostratigraphical framework, the Megistaspis limbata (with two subzones), Asaphus expansus and Asaphus raniceps trilobite zones were identified. A shale intercalation in the lower part of the Komstad Limestone contains the graptolites Phyllograptus cor in association with Glyptograptus sp. and is referred to Darriwilian 1 (Upper Arenig). In the Baltoscandian zonation this matches the upper part of the Didymograptus hirundo graptolite Zone. The upper level of the Komstad Limestone and the basal part of the overlying Almelund Shale do not contain graptolites, whereas the succeeding black shales of the Almelund Shale belong to the Holmograptus lentus Zone (Llanvirn). The Arenig-Llanvirn boundary is situated at or very near the top of the Komstad Limestone.
The conodont assemblage in the lower part of the Komstad Limestone at Fågelsång is associated with forms of Gondwanan affinity, which probably reflects the cool water environment of the outer shelf setting. The higher part of the limestone contains the Whiterockian conodont species Dzikodus sp. and Histiodella tableheadensis. These important Laurentian forms occur together with abundant Gothodus sp. 1 and Cyclopyge umbonata in the base of the Asaphus expansus Zone. The arrival of the Laurentian taxa – as well as Cyclopyge with an ‘Gondwana’ affinity – is related to a transient sea level rise at the base of the A. expansus trilobite Zone.
The Asaphus raniceps problem in the Ordovician of Sweden
Authors: Bergström Jan , Quiang Zhou Zhi , Wei Yuan Wen
Published: March 2021

It has been repeatedly stated that the lower Llanvirn Asaphus raniceps described by Dalman in 1827 and by Angelin in 1854 may represent two different species. This has forced us to live with the concepts of both A. raniceps Dalman and A. ‘raniceps’ sensu Angelin, and with a zone of A. ‘raniceps’ where A. raniceps is supposedly not present. However, new considerations based on large old and new collections have led to the firm conclusion that Angelin was correct in his identification of Dalman’s species. What has been regarded recently as the true Asaphus raniceps, at least by Tjernvik & Johansson in 1980 and by Nielsen in 1995, is instead identical with another generally misidentified species, Asaphus fallax Angelin 1854.
Upper Arenig trilobite biostratigraphy and sea-level changes at Lynna River near Volkhov, Russia
Authors: Hansen T. , Nielsen A.T.
Published: March 2021

Over 5000 trilobites have been collected from Lower Ordovician rocks exposed at the Lynna River in the Volkhov region, east of St. Petersburg, Russia. Bed-by-bed sampling has been carried out through the upper part of Volkhov Formation (top of Jeltiaki Member and the entire Frizy Member), the Lynna Formation and the basal part of the Obukhovo Formation. This interval, which is 7.5 metres thick, correlates with the upper part of the Arenig Series, and presumably even ranges into the very base of the Llanvirn. A preliminary biostratigraphical investigation of top Jeltiaki Member (BIIβ), Frizy Member (BIIγ) and basal Lynna Formation (BIIIα) reveals a rather continuous faunal turnover lacking sharp boundaries, and the biostratigraphical zonation (BIIβ–BIIIα) is primarily defined by the index trilobite taxa. The trilobite ranges are generally in agreement with the pattern described by Schmidt in 1907. The abundance ratio between Asaphus and the ptychopygids seems to be related to changes in relative sea level with Asaphus preferring the most shallow water conditions. A tentative interpretation of sea-level changes suggests an initial drowning at the base of BIIγ, immediately followed by a lowstand that in turn was succeeded by a moderate sea-level rise and then a significant fall. The last marks the BIIγ/BIIIα boundary. Correlation with sections in Scandinavia suggests that the basal part of BIIγ is strongly condensed.
Lower Ordovician mud mounds from the St. Petersburg region, northwestern Russia
Authors: Fedorov Petr V.
Published: March 2021

Hecker-type mud mounds are calcareous-clay buildups occurring in the Lower Ordovician (Billingen and Volkhov regional stages), condensed cool-water carbonates of northwestern Russia. The unusual feature of these buildups is the dominance of terrigenous clay in their cores. In all the buildups an initial gently-sloping mound of unconsolidated fossiliferous clay rests on a hardground surface. A layer of microsparite overlies the clay, with another hardground surface on the top. The mud mounds vary in diameter from tens centimetres to hundreds metres. Large mounds form complex multi-storey structures and contain sedimentary facies, which differ markedly from the facies of surrounding rocks. There is evidence that siliceous sponges formed these mud mounds. The Hecker-type mud mounds are moderate to cold-water sponge buildups with a unique combination of features found in their cold and warm water Phanerozoic counterparts.
Prehistoric settlements and Holocene relative sea-level changes in northwest Sjælland, Denmark
Authors: Hede Signe Ulfeldt
Published: March 2021

The topographic and geographic distribution of the Mesolithic and Neolithic habitations seen today in the Saltbæk Vig area, north-west Sjælland are directly related to relative sea-level changes of the Littorina Sea. The archaeological data indicate that the settlements changed their topographic positions from lower to higher ground. This pattern is explained by a rising relative sea-level during the Atlantic and early Subboreal period. Geological investigations of this phenomenon focused on changes in relative sea-level documented by the sedimentary record. At Smakkerup Huse, a late Mesolithic site, a sequence of stacked transgressive and regressive sediment deposits confirmed that the occupation coincided with a slowing rate of relative sea-level rise and beginning of relative sea-level fall during the late Atlantic period. The timing of the changes in relative sea-level was obtained by radiocarbon measurements of wood and bone fragments together with implements retrieved from contemporaneous sediment deposits. A rise in relative sea-level during the early Subboreal forced the inhabitants at Smakkerup Huse and in the Saltbæk Vig area to relocate to higher grounds.
Alteration of detrital Fe-Ti oxides in Miocene fluvial deposits, central Jutland, Denmark
Authors: Weibel Rikke
Published: March 2021

Miocene fluvial sands from an outcrop at Voervadsbro in central Jutland were studied to assess the Fe-Ti oxides and their alteration products forming during a warm, humid climate and under the influence of scattered organic material. The opaque minerals and their alteration products were investigated by optical light microscope, reflection microscope, microprobe, scanning electron microscope and X-ray diffraction. The detrital Fe-Ti oxides consist of, in decreasing order, ilmenite, titanomagnetite, magnetite, rutile, hematite and silicified leucoxene. Degradation of organic matter created mildly reducing and neutral-acid conditions under which the Fe-Ti oxides (ilmenite, titanomagnetite, magnetite and hematite) were unstable. Ilmenite has a three-step alteration process: ilmenite → pseudorutile → fine leucoxene → coarse leucoxene (single crystals of rutile or anatase). Alteration of titanomagnetite commonly resulted in coarse leucoxene in a trellis texture. Alteration of ilmenite lamellae in titanomagnetite is typically complete, probably because of their small size compared to ilmenite grains. Colloidal leucoxene is an alteration product of ilmenite and titanomagnetite. The formation of colloidal leucoxene seems to be related to organic matter or elements associated with it. Magnetite has been partly dissolved, preferentially around the rim and along fissures. Hematite is rarely a detrital grain due to intensive dissolution, and the exsolution lamellae of hematite are invariably more altered than the ilmenite host. Oxidising conditions prevailed locally e.g. in coarse-grained foresets without organic material and at the atmospheric interface of bogs. In this environment dissolved iron (originating from the alteration of Fe-Ti oxides) precipitated mainly as goethite.
Total synthesis of pyrrolo[2,3-c]quinoline alkaloid: trigonoine B
Authors: Nishiyama Takashi , Hamada Erina , Ishii Daishi , Kihara Yuuto , Choshi Nanase , Nakanishi Natsumi , Murakami Mari , Taninaka Kimiko , Hatae Noriyuki , Choshi Tominari
Published: March 2021

The first total synthesis of the pyrrolo[2,3-c]quinoline alkaloid trigonoine B (1) was accomplished via a six-step sequence involving the construction of an N-substituted 4-aminopyrrolo[2,3-c]quinoline framework via electrocyclization of 2-(pyrrol-3-yl)benzene containing a carbodiimide moiety as a 2-azahexatriene system. The employed six-step sequence afforded trigonoine B (1) in 9.2% overall yield. The described route could be employed for the preparation of various N-substituted 4-aminopyrroloquinolines with various biological activities.
FAKTOR YANG BERHUBUNGAN DENGAN TINGKAT KECEMASAN DI MASA PANDEMI COVID-19 PADA MAHASISWA UNIVERSITAS HALU OLEO
Authors: Kartini Kartini , Jafriati Jafriati , Ismail Cece Suryani
Published: March 2021

AbstrakKecemasan merupakan kondisi emosional yang ditandai dengan kekhawatiran yang berlebihan terhadap berbagaiperistiwa kehidupan sehari hari. Kecamasan di tengah pandemi Covid-19 yang berpotensi terus meningkat danmenjadi suatu ancaman terhadap kondisi kesehatan mental masyarakat di seluruh dunia. Mahasiswa rentan terhadapkecemasan, keadaan dapat menyebabkan perubahan dalam kehidupan seseorang sehingga orang itu terpaksaberadaptasi atau menanggulangi stressor yang timbul. Tujuan umum pada penelitian ini adalah untuk mengetahuifaktor yang berhubungan dengan tingkat kecemasan di masa pandemi Covid-19 pada mahasiswa Universitas HaluOleo. Metode dalam penelitian ini menggunakan pendekatan cross sectional study dengan menggunakan teknikpengambilan sampel proportional random sampling yang berjumlah 364 orang. Uji statistik menggunakan uji Chi square.Hasil penelitian menunjukkan tingkat kecemasan di masa pandemi Covid-19 pada mahasiswa Universitas Halu Oleodidapatkan 57 responden (15,7%) mengalami kecemasan ringan, ditemukan bahwa tidak ada hubungan bermaknaantara status tempat tinggal (p value = 0,074 > 0,05) dan sistem interaksi pembelajaran (p value = 0,152 > 0,05),sebaliknya ada hubungan bermakna antara pengetahuan mengenai Covid-19 (p value = 0,014< 0,05), dukungan sosial(p value = 0,000< 0,05), pendapatan orang tua (p value = 0,031< 0,05) dan keberadaan kerabat atau teman terinfeksiCovid-19 (p value = 0,000< 0,05). Keadaan psikologi mahasiswa harus diperhatikan selama masa pandemi Covid-19berlangsung.Kata kunci : Kecemasan, Pengetahuan, Tempat Tinggal, Dukungan Sosal, Pendapatan, Covid-19, Pembelajaran
FAKTOR YANG BERHUBUNGAN DENGAN KECELAKAAN LALU LINTAS PADA PENGEMUDI OJEK ONLINE (GOJEK) DI KOTA KENDARI TAHUN 2020
Authors: Aris Aris , Yuniar Nani , Pratiwi Arum Dian
Published: March 2021

Kecelakaan lalu lintas merupakan indikator utama tingkat keselamatan jalan raya. Kota Kendari yang merupakan Ibu Kota Provinsi Sulawesi Tenggara adalah salah satu kota yang ada di Indonesia dengan tingkat kecelakaan lalu lintas yang cukup tinggi.  Hal ini menjadikan indikator terhadap pentingnya memahami penyebab kecelakaan. Tujuan dari penelitian ini adalah untuk mengetahui faktor apa yang berhubungan dengan penyebab terjadinya kecelakaan lalu lintas pada pengemudi ojek online (Gojek) di Kota Kendari. Jenis penelitian yang digunakan adalah penelitian analitik dengan pendekatan cross sectional study. Jumlah sampel dalam penelitian ini yaitu 133 sampel dengan teknik pengambilan sampel  menggunakan metode accidental sampling . Analisis data meliputi univariat dan bivariat dengan menggunakan uji Chi square. Hasil penelitian menunjukkan terdapat hubungan antara faktor manusia dengan kejadian kecelakaan lalu lintas pada pengemudi ojek online (Gojek) di Kota Kendari tahun 2020 (p-value =0.000). Faktor kendaraan tidak terdapat hubungan dengan kejadian kecelakaan lalu lintas pada pengemudi ojek online (Gojek) di Kota Kendari tahun 2020 (p-value=0,996). Faktor lingkungan fisik jalan menunjukkan ada hubungan antara faktor lingkungan fisik jalan dengan kejadian kecelakaan lalu lintas pada pengemudi ojek online (Gojek) di Kota Kendari tahun 2020 (p-value=0.000). Adapun kesimpulan dari penelitian ini adalah terdapat hubungan antara faktor menusia dan faktor lingkungan fisik jalan dengan kecelakaan lalu lintas pada pengemudi ojek online (Gojek) di Kota Kendari Tahun 2020. Serta tidak terdapat hubungan antara faktor kendaraan dengan kecelakaan lalu lintas pada pengemudi ojek online (Gojek) di Kota Kendari tahun 2020