bluuebunny/crossref_metadata_2025 huggingface dataset:
Os desafios da superação do racismo no Brasil: considerações a partir do lugar de fala / The challenges of overcoming racism in Brazil: considerations from the place of speech
Authors: Katrib Cairo Mohamad Ibrahim , Silva Júnior Astrogildo Fernandes da
Published: January 2021

A presente entrevista aborda questões sobre como o racismo e a discriminação vem sendo abordados nas discussões acadêmicas. Em suas análises, a entrevistada reflete sobre as contribuições das Leis 10.639/03 e 11.645/08 para uma educação antirracista. Além disso, problematiza as contribuições das Universidades para implementação de políticas afirmativas, discute os desafios da educação étnico-racial no ensino brasileiro em relação ao debate sobre a religiosidade africana e afro-brasileira. Nesse ínterim, avalia sobre as políticas afirmativas de ingresso no ensino superior de pessoas negras e faz uma análise sobre as políticas de igualdade racial no atual contexto brasileiro.
Políticas de igualdade racial e suas interfaces com a Educação Indígena, do Campo e Quilombola: reivindicações históricas e conquistas dos movimentos sociais / Racial equality policies and their interfaces with Indigenous, Rural and Quilombola Education:
Authors: Araújo Gilberto Paulino de , Costa Antônio Cláudio Moreira , Hage Salomão Antônio Mufarrej
Published: January 2021

O artigo apresenta uma discussão sobre as políticas de igualdade racial e suas interfaces com a Educação Indígena, do Campo e Quilombola no Brasil. A análise tem como foco as reivindicações históricas e as conquistas dos movimentos sociais representativos dos povos tradicionais, indígenas e camponeses. A metodologia fundamenta-se na pesquisa bibliográfica e documental, tendo como base a revisão de autores que tratam da temática em pauta, assim como as legislações que reconhecem o direito à educação desses povos. Dentre os resultados, destacamos o papel dos movimentos sociais no surgimento e fortalecimento das políticas públicas de igualdade racial, de Educação Indígena, do Campo e Quilombola como instrumentos de resistência e (re)existência à lógica capitalista.
Políticas públicas e relações étnico-raciais: reflexões sobre uma experiência docente compartilhada na Universidade Federal do Sul da Bahia / Public Policies and ethnic-racial relations: reflections about a shared teaching experience at Universidade Feder
Authors: Oliveira Carolina Bessa Ferreira de , Souza Lidyane Maria Ferreira de
Published: January 2021

O texto apresenta reflexões teórico-metodológicas a partir da experiência docente compartilhada pelas autoras no Componente Curricular Políticas Públicas e Relações Étnico-raciais do Programa de Pós-graduação em Ensino e Relações Étnico-raciais na Universidade Federal do Sul da Bahia. Para tanto, discute os principais dilemas e desafios encontrados na prática de docência compartilhada, evidenciando as escolhas metodológicas e os referenciais teóricos no campo das políticas públicas, raça e etnia à luz das políticas educacionais de combate ao racismo. Adota-se a pesquisa bibliográfica e o relato da experiência. Conclui-se que a docência compartilhada favoreceu a horizontalidade, o diálogo e a reflexividade almejadas para o estudo e o ensino de tais relações.
Educação Escolar Quilombola: entre silenciamentos e produção de ausências / School Education in the Quilombo: between silencings and production of lacks
Authors: França Evanilson Tavares de , Mendes Jackeline Rodrigues
Published: January 2021

Há sempre brandura no silêncio. E há doses de violência nos silenciamentos, ainda que elas variem quanto ao volume e à constância. As linhas radicais, sobre as quais fala Santos (2009), instituintes de duas realidades, ainda animam os silenciamentos. Mais que isso: continuam a produzir inexistências (de saberes e de pessoas). Como essas linhas não são fixas, as escolas são atravessadas por elas; e isto parece evidenciar-se ainda mais quando situadas em comunidades tradicionais. À vista disso, e objetivando refletir sobre as razões que tornam, no cotidiano, o currículo de escolas quilombolas uma ferramenta de silenciamento e de produção de ausências, escrevemos o presente artigo. Provocar outras discussões é nossa intenção; tensionar as práticas curriculares, também.
Identidade racial negra no contexto da produção do Plano Municipal de Educação de Diamantina/MG / Black racial identity in the context of the production of the Municipal Education Plan of Diamantina/MG
Authors: Meira Vanderson Ely , Couto Regina Célia do
Published: January 2021

O presente artigo tem por objetivo discutir como o tema da identidade racial negra foi apropriado no processo de elaboração do Plano Municipal de Educação de Diamantina/MG (2015-2025). Auscultamos os colaboradores sobre: compreensão do plano de elaboração dessa política; identificação das vozes integrantes; participação do movimento negro; abordagem do tema da identidade racial negra. Pelo exposto, a cena de elaboração do PME de Diamantina/MG configurou-se como um campo político marcado por debates sobre identidades, mas nem todas as vozes tiveram expressão para definir as matrizes da Lei nº 3.880/2015, que aprova o referido plano. Nesse campo de disputas, a identidade racial negra desenhada no processo de tessitura do plano é caudatária da visão colonial, uma vez que a população negra presente no contexto educacional diamantinense ainda não é considerada parte integrante desse processo.
Análise dos indicadores de eficiência, de eficácia e de efetividade na Universidade Federal de Pernambuco / Analysis of efficiency, efficacy and effectiveness indicators at the Federal University of Pernambuco
Authors: Oliveira Jamine Bruno de , Lopes Alba de Oliveira Barbosa , Raposo Maria Cristina Falcão
Published: January 2021

O artigo tem como objetivo analisar a evolução da Universidade Federal de Pernambuco (UFPE) quanto à eficiência, à eficácia e à efetividade nos Indicadores de Desempenho do Tribunal de Contas da União nos anos de 2000 a 2017. A metodologia utilizada foi quantitativa com confecção de gráficos e com análise por meio da técnica de regressão linear. Verificou-se que a UFPE, apesar dos desafios econômicos, com a redução de recursos financeiros e um cenário instável, tem obtido um desempenho favorável em sua eficiência, eficácia e efetividade, através da análise desenvolvida pelos indicadores.
The Transfer of Imagos in Translation of Nationally Oriented and Transnational Texts (As Seen in the Novels of Czech, Slovak and Russian Writers)
Authors: Kniazkova Viktoria S. , Kotova Marina Yu.
Published: January 2021

This work is an attempt to highlight the specific features of nationally oriented and transnational prose texts. Nationally oriented texts reflect history, culture and identity of one nation (e.g. prose by Solzhenitsyn and Krištúfek), transnational texts compound two or more national culture codes (e.g. prose by Brežná, Kaminer, Moníková and Škvorecký). The goal of this study is to identify specific difficulties in the process of their translation and transfer of imagos, that is stereotypical images of other identities. With the use of stylistic method, some typical ways of transmitting these imagos in literary texts are demonstrated.
Имя собственное в составе современных белорусских пословиц на фоне чешских паремий
Authors: Bojewa Наталия Е.
Published: January 2021

Имя собственное – важный объект анализа при сравнении пословиц на материале разных языков и культур. Объектом исследования являются чешско-белорусские пословичные параллели с компонентом-именем собственным. Некоторые исследования посвящены вопросу об именах собственных в составе чешских и белорусских паремий и их роли в формировании стереотипов, но в данной работе этот вопрос рассматривается в новом аспекте. Цель исследования – сравнить имена собственные в современных чеш-ских и белорусских пословицах; выявить культурные коннотации имен собственных в паремиях, а также выявить лакуны в белорусском Паремиологическом фонде современных активных пословиц.
Ty jo, to seš dobrá!
Authors: Zeman Jiří
Published: January 2021

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Nourishing Life – Chinese Environmental Wisdom and Practices
Authors: Dłużewicz Alicja
Published: January 2021

Increasingly recognized threats from climate change and the progressive sixth mass extinction require not only searching for new technological solutions, but also changing the perception of the world and the beings living in it. There is an urgent need to include individual practices; practices that are an integral part of integrated policies to protect habitats, the climate, and the homo sapiens itself. Eric S. Nelson, in his latest book Daoism and Environmental Philosophy. Nourishing Life introduces the reader to the environmental approach known to Chinese communities for centuries. In a comprehensive and accurate manner, the author presents the Chinese approach to life and development, the understanding and interpretation of which has changed over the centuries, invariably emphasizing man’s belonging to the world of nature. This review introduces the author’s assumptions presented in the book, combining them with relatively new thoughts and paradigms appearing in the 20th and 21st centuries in Western Europe and the United States.
Why Is Recreational Hunting a Moral Evil?
Authors: Szklarska Anna
Published: January 2021

The paper reviews the recent book edited by Dorota Probucka, entitled The Ethical Condemnation of Hunting (in Polish: Etyczne potępienie myślistwa), Universitas Press, Kraków 2020, pp. 426. Probucka is one of the most prominent Polish experts in animal studies, especially in applied ethics and the field of animal rights (e.g., Probucka 2018a, 2018b, 2017). The discussed monograph encompasses the contributions of 19 authors representing 9 universities from Poland and abroad. Their core issue of consideration was the topical problem of hunting, examined from various perspectives: ethical and legal, psychological, social and cultural, both on the theoretical level and in relation to the practice of hunting. This review focuses on the core arguments against hunting and discusses them in detail.The Ethics in Progress journal had the honour of contributing to the media patronage of Dorota Probucka’s et al. edition.
Trace Operators on Regular Trees
Authors: Koskela Pekka , Nguyen Khanh Ngoc , Wang Zhuang
Published: January 2021

We consider different notions of boundary traces for functions in Sobolev spaces defined on regular trees and show that the almost everywhere existence of these traces is independent of the chosen definition of a trace.
El concepto de delito en el sistema penal rumano
Authors: Dipse Valentina Ileana
Published: January 2021

El vigente Código penal rumano, aprobado por la Ley 286/2009, de 17 de julio y en vigor desde el 1 de febrero de 2014, ha optado por incluir una definición legal de delito en el art. 15 del Capítulo I del Título II. Se trata de uno de los elementos más originales y difíciles de interpretar del Código penal rumano que mantiene dividida a la doctrina penal rumana tanto en lo que se refiere a las categorías que lo integran como al alcance o ubicación de estas.
Acoger y amoblar: Estéticas e ideas sobre el hogar
Authors: Edward Salazar Celis , Paula Camila Amador Cardona , William Conteras Alfonso
Published: January 2021

Este documento reúne algunos de los avances de investigación frente al hogar bogotano de la clase media-alta, en diálogo con la producción artística colombiana sobre el mismo tema. Se presentan las ideas que modelan las decisiones estéticas y de diseño al interior del hogar desde los resultados escenográficos, así como sus conexiones con las preguntas y resultados plásticos de artistas colombianos frente a su indagación por el hogar.
Estado del arte en Software educativo
Authors: Mario Dustano Contreras Castro
Published: January 2021

Se contextualiza inicialmente en Diseño Instruccional en cuanto a su definición, modelos instruccionales, desarrollo en el Modelo ADDIE (Análisis, Diseño, Desarrollo, Implementación, Ejecución), como también, MEC (Modelo Educativo Computarizado). Luego, se colocan los referentes de Edumatica como experiencia, aportes y renovación de Metodología de Software Educativo orientados a objetos de Conocimiento de Formación y Estudio como su representación de Escenas, Esquema, Navegación.
Tecnologías de la información y ciudadanías creativas: el caso de la escuela audiovisual Caminos de Paz en Cauca, Colombia
Authors: Pablo Felipe Gómez Montañez , Clara Victoria Meza Maya , Sandra Lucía Ruíz
Published: January 2021

El siguiente artículo muestra los resultados de la primera fase de una escuela de comunicación audiovisual, la cual es mediada por tecnologías de la información. Para ello identificamos dos tipos de narrativas. En primer lugar, una sobre los impactos benéficos en el acceso y apropiación de tecnología, y en valores derivados de procesos colaborativos llevados a cabo por los estudiantes para fortalecerse como colectivo social. En segundo lugar, otras que conforman un primer corpus de contenidos, con los cuales la escuela busca narrarse y representarse como caso exitoso de construcción de paz en la región. Nuestra tesis consiste en que dichas narrativas evidencian que los procesos de apropiación de tecnologías de información y comunicación digital llevados a cabo por este grupo de beneficiarios fortalecen procesos de comunicación comunitaria y de ciudadanías creativas, sustentadas en los valores que emergen en medio de relaciones e interacciones colaborativas.
Presentación de Signo Distintivo Grupo de investigación GRINBIC
Authors: Fabián Moreno , Luz Miryam Malagón
Published: January 2021

Este documento da cuenta de la Presentación del Signo Distintivo del Grupo de investigación GRINBIC desarrollado en el marco del programa Pi-e Aliado, ruta de desarrollo tecnológico e innovación.
Plan estratégico red juvenil alternativa para la paz
Authors: Claudia Yasmin Hurtado Hurtado , Claudia Patricia Tarquino Acosta , Jhonny Alberto Botero Guzmán , Daniel Alejandro Contreras Castro , Jhon Fernando Soto Mancera
Published: January 2021

La iniciativa Red Juvenil Alternativa para la Paz busca formar desde diversos ambientes democráticos concretos, sin necesidad de expresarlo como parte de un contenido curricular, sino a través de un ejercicio en contexto donde se vayan desarrollando las habilidades necesarias hasta llegar al punto de reconocerse como sujetos democráticos que participan y promueven espacios.
Presentación Signo Distintivo CEC
Authors: Juan Sebastián Casallas Reinel , Lizeth Karina Barreto Pacheco , Yordan Nicolás Pisco Guabave , Paula Andrea Murillo Perez
Published: January 2021

Este documento da cuenta de la Presentación Signo Distintivo CEC
Presentación Signo Distintivo del Semillero de Investigación Working Minds
Authors: Laura Lorena Araujo Medina , Hoover Samuel González Pineda
Published: January 2021

El presente documento da cuenta de la Presentación Signo Distintivo del Semillero de Investigación Working Minds
IL CONCETTO DI RESTAURO A CUBA AI LIMITI DELLA SOSTENIBILITÀ. IL CONVENTO DI SANTA TERESA DE JESÚS NEL CENTRO STORICO DELL’HABANA
Authors: Paradiso Michele , Garuglieri Sara , Ferrarini Viola
Published: January 2021

L’articolo affronta il caso studio del Convento di Santa Teresa de Jesús situato nel centro storico dell’Habana (Cuba), facente parte della lista dei siti a rischio “2000 World Monuments Watch” della Word Monuments Fund ed oggetto di restauri dal 2005 ad opera dell’Oficina del Historiador de la Ciudad de La Habana. Il presente studio si è sviluppato a partire dal 2015 grazie alla cooperazione interuniversitaria tra l’Università degli Studi di Firenze ed il Colegio Universitario San Geronimo de La Universidad de La Habana in occasione della tesi di Laurea Magistrale in Architettura dell’Università di Firenze. L’articolo rappresenta un estratto del complesso lavoro svolto, esponendo inizialmente i ceni storici del convento per poi soffermarsi sugli aspetti strettamente legati all’opera di restauro, sottolineando l’importanza del processo conoscitivo del fabbricato come paso previo alla diagnostica del suo degrado strutturale. Il lavoro trova compimento con un approccio alle proposte per il consolidamento strutturale e progetto di rifunzionalizzazione, applicando metodologie presenti nelle raccomandazioni ICOMOS, ponendole a confronto con il modus operandi cubano.
WUNDERKAMMER, UNA COLLEZIONE DI PENSIERI SUL RUOLO DELL’ARCHITETTO POST-PANDEMIA E RIFLESSIONI SULLA QUALITA’ DELL’ABITARE, ATTRAVERSO L’ATTO DELLA PARTECIPAZIONE
Authors: Borea Francesca , Pederzini Giulia
Published: January 2021

La pandemia globale ha nettamente destabilizzato e ridefinito gli equilibri del vivere contemporaneo sia nel breve, che nel lungo periodo. La messa in discussione della “normalità” e delle forme abitative ordinarie, incentiva a ripensare al concetto di “nuovo normale” e a riprogettare i luoghi dell’abitare. Così nasce Wunderkammer, un progetto di ricerca architettonica che promuove l’atto del collezionare come strumento di riflessione e di confronto. Sono stati invitati architetti, artisti, scrittori, psicologi e professionisti sensibili al tema, a condividere il loro pensiero sui valori della resilienza e della partecipazione, riassumendolo in un’immagine e un testo di circa 1000 battute. Durante la reclusione domestica, i social media si sono rivelati l’unico strumento di comunicazione efficace e fruibile a tutti: la raccolta e la diffusione dei contributi, tramite l’utilizzo di piattaforme virtuali, ha permesso al progetto di alimentarsi e di evolversi, fino a collezionare oltre 60 riflessioni. L’interpretazione, l’analisi e il confronto degli elaborati raccolti hanno permesso di riconoscere un sentimento collettivo in corrispondenza delle diverse fasi della quarantena. In parallelo alla collezione di pensieri, che continuano ad arricchire la nostra “teca” virtuale, si analizzano i primi contributi raccolti, considerato materiale utile e propedeutico allo studio di nuove soluzioni architettoniche più consapevoli. É auspicabile dunque che i relativi elaborati e documenti possano diventare un supporto storico e sociologico prezioso per il nostro futuro; essenziali per il progetto che qui viene presentato in modo sintetico attraverso un approccio riflessivo, ottimista e partecipativo.
Pneumocystis Jirovecii Pneumonia in a Kidney Transplant Recipient 13 Months after Transplantation: A Case Report and Literature Review
Authors: Varnas Dominykas , Jankauskienė Augustina
Published: January 2021

Background. Pneumocystis jirovecii pneumonia (PCP) is an opportunistic and prevalent fungal infection in immunocompromised hosts, including patients after kidney transplantation (KTx). It is a life threatening infection. While with effective prophylaxis it became less common, it still remains an issue among solid organ transplant (SOT) recipients during the first year. There are no specific clinical signs for PCP. Computed tomography (CT) is a better method for detecting PCP, but definite diagnosis can only be made by identification of the microorganism either by a microscopy or by a polymerase chain reaction (PCR).Clinical case. We present a case of a 17 year old with severe PCP 13 months after KTx followed by reduction in kidney function and respiratory compromise. The pathogen was detected by PCR from bronchoalveolar lavage fluid (BALF) and patient was treated successfully with trimethoprim-sulfamethoxazole (TMP-SMX). Patient’s condition, respiratory status and kidney function gradually improved. Our presented case is unusual because patient had no known risk factors for PCP and he was more than one year after KTx, what is considered rare. In addition patient and his parents delayed in notifying the treating physician about ongoing symptoms because did not deem them important enough.Conclusions. Clinicians treating patients in risk groups for PCP must always remain vigilant even in era of effective prophylaxis. The vigilance should also extend to the patient and patient’s family.
The link between Brain and Hearing system
Authors: Bina Alireza
Published: January 2021

There are some studies which confirmed that dysfunction in Central Nervous System(CNS) may cause a malfunction in the Peripheral Auditory system (Cochlea_ Auditory Nerve, Auditory Neuropathy), but the question is could Brain Disorder without any lesion in the Cochlea and/or Auditory nerve cause Sensorineural Hearing Loss? It means that the Audiogram shows that the patient suffers from sensorineural hearing loss but the site of the lesion is neither Sensory nor Neural while Brain may be involved in charge of this. And if the answer is yes then could we hear with our Brain and without Cochlea and /or Auditory nerve? We deal with this subject in this paper by: Otosclerosis and Meniere’s disease and The Brain Involvement. Hearing Loss following dysfunction in the Central Auditory and/or central non auditory system. Auditory Brainstem Implant in Patients who suffer from Neurofibromatosis Type two compare to Non Tumor cases, Mondini Syndrome, Michel aplasia. Possible role of Utricle and Saccule in Auditory (Hearing) System We propose a new Hypothesis that the External Ear Canal is not the only input of Auditory Signals, Sounds could transfer by our eyes and skin to the Cerebral Cortex and approach to the Cochlea (Backward Auditory input pathway of Sounds).
FINNO-UGRIC SCIENTIFIC AND PUBLIC FORUM “WE ARE ALL RUSSIA!”: PUBLIC INTERESTS AND SCIENTIFIC OBJECTIVES
Authors: Arsentyev Nikolay M. , Skvortsova Larisa G.
Published: January 2021

October 8-9, 2020 in the city of Saransk within the framework of the Finno-Ugric scientific and public forum “We are all Russia!” the most significant issues related to the preservation of the ethnic and civic identity of the Finno-Ugric peoples were discussed. The main organizers of the forum were the Federal Agency for Nationalities of the Russian Federation, the All-Russian Public Movement “Association of the Finno-Ugric Peoples of the Russian Federation”, Ogarev Mordovia State University. The key events of the forum were the International Scientific Conference “Finno-Ugric Peoples in the Context of Formation of the All-Russian Civic Identity and the Changing Environment”, the All-Russian Scientific Conference “Finno-Ugric Peoples in the Socio-Economic and Cultural Space of Russia”, the meeting of the Bureau of the Association of Finno-Ugric Peoples of the Russian Federation. The events were held dew to the financial support of the Russian Foundation for Basic Research and “The History of the Motherland” Fund. The actualization of the topic of the forum is due to the need to conduct and present the results of interdisciplinary research in the field of complex Finno-Ugric studies as an important area of modern science. It is focused on promoting the further development of scientific, cultural, linguistic and other cooperation of kindred Finno-Ugric peoples. Representatives of the scientific world, public organizations, federal and regional authorities, experts who successfully study the development of the multinational people of the Russian Federation and the Finno-Ugric peoples of Russia and foreign countries, the most important components of ethnic culture, largely determining and reflecting its features, preservation of the identity of the multinational people. The holding of the forum strengthened the integration of scientific developments, a productive dialogue was formed between specialists and scientists not only in the social and humanitarian field, but also in natural science, information and other fields of scientific knowledge, increasing the effectiveness of their research and applied developments in the study of Finno-Ugric issues.
Descriptive Model of Regional Philosophies on the Example of the Study of Kazan Philosophy of the XIX–XX centuries
Authors: Poroshenko Olga U. , Prokhorov-Malyasov Georgy S.
Published: January 2021

Introduction. The article discusses a descriptive model of regional philosophies on the example of the study of Kazan philosophy of the period XIX – early XX centuries. Of particular interest is the problem of describing regional philosophical systems, schools, communities, study of their structures, “mentalities” and the figures of the subjectivity of scientists, which is still little disclosed in the field of internal regional studies in Russia. According to the authors of the publication the philosophical “space” of the region can be studied both from the perspective of history, cultural studies, regional studies, regional studies, and from the perspective of sociology and philosophy itself. Materials and Methods. The sociological analysis of “regional philosophies” by R. Collins, which has significant research potential and can be used not only in the study of national/regional science, but is applicable primarily to describe the philosophical community, as the definition of structure and standards of activity of the philosophical community is largely possible due to the analysis of the influence of the social environment on the formation of philosophical views of man and the dissemination of philosophical ideas in whole. Results. The application of the sociological approach of R. Collins to develop the parameters of the descriptive model of philosophical thought in Kazan and the analysis of philosophical concepts of regional scientists revealed the “spheres of influence” and features of social networks of representatives of this regional intellectual community, thereby expanding the “colorful palette” for its description in the direction of the search for self-identity. The parameters of the model of the sociological description of “network schemes” of representatives of philosophical thought of Kazan of the XIX–XX centuries were developed and their philosophical concepts. Discussion and Conclusions. It is worth counting on a significant shift in research interest in the direction of the transition from the personal biographical data of a particular thinker in the historical era to a comprehensive analysis of scientific communities, taking into account the interaction of social, historical, economic, political and regional factors that influence the formation of the intellectual and creative life of the scientific community.
Social and Emotional Skills – a Requirement for Personal Development at School Age
Authors: Uzunova Veneta
Published: January 2021

The focus of the current article is the age group of 12-14 years of age (6th-7th grade) due to the global tendency in society today where more and more families are not able to provide an adequate support in life and the schools become the only place where children could obtain the needed corrective measures to make up for their lack of emotional and social competency. The selected age group represents the most fragile period of human life span. The family and the peers are the most influential factors in the socialization process. The striving toward autonomy and the search for the real self, the interest toward what is new and different, the perception of adulthood draws teenagers closer to their peer group. That however does not replace the need for safety, trust, protection which keeps attracting them back to their families. At the center of our research is the question is the balance between functioning in different fields of social interaction a measurement for a complete life and for a successful implementation of the process of establishment of social and emotional skills.
OPPORTUNITIES FOR QUALITY ASSURANCE IN TOURISM BUSINESS
Authors: Ilieva Lyubka
Published: January 2021

In order to achieve long-term national priorities - competitiveness and sustainable growth, tourism businesses need to realize the economic relevance of quality management. The study of this problem and its application in tourism practice is particularly relevant given current state and industry initiatives, regulatory and voluntary quality assurance tools. As the quality of the tourist product is a collection of many elements, including the development of modern and developed infrastructure at local and state level; professional training of staff employed in the sector; ensuring security of residence; ensuring a clean environment; the provision of safe services, etc., the main objective of the present study is to research and elucidation the possibilities for quality assurance in Bulgarian tourism enterprises. To achieve this, it is necessary to carry out a theoretical analysis and practical study of the tools used to ensure the quality of the tourist business. As a result of the research, the main normative and voluntary instruments for quality assurance and control in the tourist business are examined, the attitude of the tourism business and the consumers towards the voluntary certification of Quality Management Systems and offered effective measures proposed to promote the initiative of the Bulgarian business to quality assurance of the services offered.
New record of Euphorbia thymifolia L. (Euphorbiaceae) from the state of Acre, Brazil
Authors: Souza Maria Cristina de , Silva Otávio Luis Marques da
Published: January 2021

Euphorbia thymifolia (Euphorbiaceae) is a prostrate herb, distinguished from similar species by the combination of serrate leaf margin, puberulous ovary/fruit with capitate styles and pedicel not accrescent in fruit, splitting the involucre of the cyathia during maturation. In this paper we present the first record of E. thymifolia for the state of Acre, in Alto Juruá region, municipality of Cruzeiro do Sul, in a residential sidewalk crack habitat (07°36′58″S, 072°41′14.12″W WGS84). We also comment on its habitat and distribution, and include comparisons with commonly misidentified related species.
USING METAL WASTE SLAGS AS THE HETEROGENEOUS CATALYSTS OF OZONE FOR TREATMENT OF PULP WASTEWATER
Authors: Van Hu Tap
Published: January 2021

Catalytic ozonation is one of the promising treatment methods for removal of persistent organic compounds from water and wastewater. In this study, some metal slags such as: iron slag, lead slag, zinc slag, cadmium slag and copper slag originated from solid waste of Thai Nguyen Non-ferrous Metals Limited Company, Vietnam were used as heterogeneous catalysts for ozonation process to remove organic compounds from pulp wastewater. The effects of the initial pH (pHi) of pulp wastewater and the metal slag dosage on efficiency of decolorization and mineralization of pulp wastewater, in term of COD were investigated. The results indicated that iron slag was the most suitable catalyst for treatment of pulp wastewater by ozonation process with the highest removal efficiency of COD, namely, after 120 min of ozonation (with flowrate of O3 of 3.038 g/h) of the pulp wastewater (initial COD 1809 mg/L), COD removal efficiency, respectively, reached 91,16%; 84%; 83,83 %; 83,91%; 83,41% and 83,14% in the presence of iron, copper, zinc, lead, cadmium slag and ozone alone. Simultaneously, the color was almost completely removed (95.55 – 98.79%) by ozonation processes with using all before-mentioned metal slags as heterogeneous catalysts and ozone alone. Maximum COD and color removal efficiency obtained at pH 7 for ozonation alone and its combinations with iron slag. Moreover, an increase in the iron slag dosage from 0.125 g/L to 2.0 g/L for O3/iron slag could enhance COD and color removal of pulp wastewater. The K values (apparent first-order rate constant values) showed that the COD removal rate followed the pseudo-first-order kinetic model. This study also indicated that the main constituent FeO presence in iron slag reaction with O3 in heterogeneous catalytic ozonation system enhances removal efficiency of color and COD of pulp wastewater.
REMOVAL OF NORFLOXACIN BY TiO2-SBA-15 PHOTOCATALYST
Authors: Trang Nguyễn Thị Thu , Vinh Trần Quang , Đồng Nguyễn Thành , Linh Phạm Tuấn , Hoàng Nguyễn Viết , Giang Hà Văn , Mai Nguyễn Sao , Tân Nguyễn Minh
Published: January 2021

Ordered SBA-15 mesoporous silica support was synthesized by a sol-gel method using triblock copolymer Pluronic P123 and immobilized with different amounts of photocatalyst TiO2. The synthesized composites were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and N2 adsorption-desorption isotherms. The synthesized materials possessed specific surface areas SBET of 768 m2/g, 544 m2/g, 421 m2/g and 333 m2/g at the TiO2:SiO2 ratio of 0, 0.25, 1.0 and 5.0, respectively. The adsorption capacities and photocatalytic activities under UV light irradiation of these materials were evaluated for Norfloxacin degradation. Experimental results indicate that the highest activity was observed on the sample with TiO2:SiO2 ratio of 1.
PURIFICATION OF PHOSPHOGYPSUM FOR USE AS CEMENT RETARDER BY SULPHURIC ACID TREATMENT
Authors: Phuong Dang Ngoc , Chi Ngo Kim , Lam Tran Dai , Truyen Chu Quang , Kien Tran Trung , Dinh Dang Thi
Published: January 2021

Phosphogypsum is a by-product of the wet phosphoric acid production. In this study, chemical compositions of phosphogypsum waste (PG) in Hai Phong diammonium phosphate plant (DAP1) and Lao Cai diammonium phosphate plant (DAP2) in Vietnam were surveyed for the purpose of gypsum recovery by P2O5, F removal to meet TCVN11833 for use treated gypsum as cement retarder. Studies of impurities P2O5, F, TOC removal by sulfuric acid 10 % at 28 0C was presented. The results found that the combination of a low concentration of sulfuric acid treatment, washing, lime neutralizing, and thermal treatment was successful in Phoshogypsum treatment for use as cement retarder. The cement test proved that treated PG could partially replace natural gypsum as a retarder.Keywords:  phosphogypsum treatment, phosphorus pentoxide removal, calcium sulfate transition phase, cement retarder.
ARSENIC AND OTHER METALS CONTAMINATION IN GROUND WATER RESOURCE IN DAK NONG PROVINCE, VIETNAM
Authors: Tran Viet Tuan , Trinh Nguyet Thi Anh , Tran Quoc Ai , Ta Trung Duc , Ho Huy Nguyen , Nie H Wien , Tran Minh Quoc , Pham Nhat Hong
Published: January 2021

This study aimed at understanding the concentrations of selected heavy metals including arsenic, iron, manganese, cadmium and mercury in groundwater used for domestic purposes in Dak Nong Province of Vietnam. A total number of 572 groundwater samples including 61 duplicates were collected during October, 2018 – April, 2019. The collected samples were measured onsite for pH and preserved with 2% HNO3 before being analyzed in the laboratory for heavy metals by inductively coupled plasma mass spectrometry. The relative percent differences of all duplicate samples were less than 30%, indicating that the analytical results were within acceptable ranges. The average concentrations of As, Fe, Mn, Cd, Hg and Pb in groundwater were 9.53±46.36, 307.1±1,178, 166±478, 4.66±6.2, 1.0±1.8 and not detected, respectively. Amongst all the analytical results, however, some values on the concentrations of studied metals exceed the Vietnamese regulation values for groundwater quality and for domestic use requirements. The research results therefore suggest that groundwater containing rather high concentrations of heavy metals at the studied area should not readily be used for domestic purposes without proper treatments.
EFFECTS OF SALT STRESS ON PLANT GROWTH AND BIOMASS ALLOCATION IN SOME WETLAND GRASS SPECIES IN THE MEKONG DELTA
Authors: Pham Han Thi , Vo Viet Hoang , Dang Trang Thi Thu , Nguyen Tung Chau Thanh , Nguyen Dong Minh , Taku Nishimura , Pham Toan Van , NGO Trang Thuy Diem
Published: January 2021

Salt stress causes serious damage to many cellular and physiological processes that leads to yield reduction. The study induced salt stress using Hoagland solution added NaCl to evaluate its effects on plant growth and biomass allocation of some wetland grass species in order to identify salt-tolerant species for replacing and/or supplementing rice/grass in rice-shrimp model and salt-affected area in the Mekong Delta. The study also seeks to evaluate the response of leaf chlorophyll (SPAD unit) and proline content in salt-treated plants to varying application of salinity. Typha orientalis, Lepironia articulata, Eleocharis dulcis and Scirpus littoralis were studied in hydroponics condition with four levels of NaCl of 5, 10, 15, 20‰ and the control treatment (without adding NaCl). The experiment was arranged in a completely randomized design with 3 replications. The salt-treated plants showed visually clear responses of inhibited growth under salt stress condition compared to the control plants. Among the four studied species, T. orientalis produced the highest dry shoot biomass (15.5 g DW/plant), while E. dulcis had the lowest value (2.8 g DW/plant). However, only T. orientalis showed significantly decreased in biomass as salinity increased with 9.3 and 4.6 times lower of fresh and dry biomass in plants grown at the salinity level of 20‰ compared to those grown in the control treatment. The other three plant species did not affect by salinity levels. The results indicated that S. littoralis, L. articulata and E. dulcis could tolerate at high salinity of 20‰ (eq. to the EC value in the nutrient solution of 38.0 dS/m) and could be potential candidate to grow in the rice-shrimp model or in the salt-affected soils.
MODELING OF PLANKTON DEVELOPMENT PROCESSES IN THE PANGASIUS (PANGASIANODON HYPOPHTHALMUS) PRODUCTION POND IN VIETNAM
Authors: Le Thinh Xuan , Dang Hien Xuan
Published: January 2021

Pangasius (Pangasianodon hypophthalmus) is a popular food in many countries around the world as well as Vietnam, at the same time, Pangasius (catfish) also brings great economic benefits from the exportation. However, unplanned catfish farming leads to environmental degradation. Fish farming is more susceptible to disease and consumes more water. Feed for fish is only partially used, the rest is released into the environment. The industrial feeds with high nutrient content, especially those rich in nitrogen (N) and phosphorous (P), are the strongest contributors to the water index. Thus, within high volume and high pollution levels of wastes from catfish pond which has had a great impact on the water environment, negatively affecting the catfish farming and the community. Modeling is a solution that helps to better control the biological processes in the pond, optimizes feed supply and water use. Modeling has many advantages compares to the real research because the cost is too expensive; requires too long time; does not affect to production or endangers to persons and equipment. In some cases, it is not possible to do experiments on real systems. Therefore, the application of the modelling is a suitable way to identify and control biological processes in catfish ponds. This research will study the plankton development processes taking place in catfish ponds by modeling using Matlab software to simulate the nutrition and development processes of fish in catfish ponds. These equations were solved by the fourth-order Runge-Kutta method and coded in the Matlab programming language.As a result, the plankton development processes of pangasius pond is simulated includes (green algae, cyanobacteria, diatoms), (the ratio of nitrogen content in green algae, cyanobacteria, diatoms), (the ratio of phosphorus content in green algae, cyanobacteria, diatoms) at different temperatures 28, 30oC.
FORECAST ON WATER QUALITY OF TO LICH RIVER BASED BY SCENES OF HA NOI SEWERAGE PLANNING BY MODEL QUAL2K
Authors: Tran Ha Duc , Le Hung Viet , Tran Hai Duc Minh , Nguyen Quyen Duc
Published: January 2021

To Lich River is well-known as a main drainage river and plays a vital role to the landscape distribution of Hanoi city, which is currently polluted due to improperly untreated wastewater flow. Thanks to QUAL2K model, the variation of river water quality has been forecasted by 4 particular scenarios. For the first scenario, the whole generated wastewater along To Lich River is not totally collected and treated. For the second one, it occurs as the former one with an addition of diluted water of 5m3/s from Red river. Next, wastewater is mostly well managed but minor sources are not collected. Finally, the whole generated wastewater is properly treated and added with a diluted amount of 5m3/s from Red river. The study indicated that in order to meet standard of column B1, QCVN 08-MT:2015/BTNMT (Vietnam National Regulation), centralized and decentralized generated sewerage is required the appropriate treatment to reach column B National Standard 02:2014/BTNMT, with the BOD5 is lower than 20 mg/L before discharging into the nature.
ASSESSMENT OF USAGE CONDITIONS OF SEPTIC TANKS IN HA NOI AND HAI PHONG
Authors: Hoang Huong Thi Thu , Nguyen Tuyet Thi Anh , Dinh Hung Quang
Published: January 2021

The study had been conducted in 2017-2018 to generate usage conditions of septic tanks in Ha Noi and Hai Phong through (1) collecting information on usage condition of septic tanks by interview survey; (2) obtaining analytical results of wastewater inflowing to and out flowing from the septic tanks selected by interview survey results. The number of target interview surveys was 200 including both type of the septic tanks treating (i) black water only, and (ii) black and grey water. Among the septic tanks surveyed, 20 septic tanks were selected for collecting discharged wastewater sample and analysing discharged wastewater quality. The analysed parameters included water temperature, pH, BOD5, COD, TSS, Total Phosphorous (TP), Total Nitrogen (TN), NH4-N, and total coliform. Poor quality of wastewater discharged from septic tanks proved the inefficiency of septic tanks in treating black water from the households. As the results, desludging frequency of the septic tanks were recommended through the relationship between desludging interval and effluent water quality from septic tank. And the recommended volume of water-saving toilets was determined through the distributions of “water volume per flush in toilet”, “water consumption”, “estimated volume of septic tanks” and “desludging frequency” in Ha Noi and Hai Phong.
WILLINGNESS-TO-PAY FOR WATER SERVICE OF PEOPLE IN A COASTAL COMMUNE – A CASE STUDY IN VINH XUAN COMMUNE, PHU VANG DISTRICT, THUA THIEN HUE PROVINCE
Authors: MAI CHAU NGOC , NGUYEN GIANG BAC
Published: January 2021

These days, clean water plays a vital role in the life but many inhabitants in Vinh Xuan, a coastal commune, are facing the clean water shortages. This paper presents the results of water use situation, Willingness-To-Pay (WTP) and analyzing the factors affecting WTP for water service of residents in Vinh Xuan. A survey on water consumption and WTP estimation of users for water service experienced that only one-third of Vinh Xuan people have had access to clean water. This situation illustrated getting access as well as using clean water have been still limited while the demand of water use has been rising. Besides, more than a half of inhabitants in this commune accepted to pay for better water quality and regular water supply even the water price is higher from 500 to 1,000 dong per m3. The average WTP was calculated, 8,519 dong per m3 with households using piped-supplied water and about 8,750 dong per m3 with non-using tap water households. Through interview and regression model, some main factors affecting household’s water use were awareness of water use, income of residents, etc. Several solutions were proposed to improve the situation of water use and WTP for water service in Vinh Xuan.
QUANTIFICATION OF POLLUTANTS MASS AND ENERGY CONSUMPTION AS A TOOL FOR INDUSTRIAL WASTEWATER POLLUTION CONTROL IN STEEL INDUSTRY
Authors: My Nguyen Tra , Anh Nguyen Viet , Anh Nguyen Hoang
Published: January 2021

Quantification of mass flows in production lines and waste treatment lines, as well as quantification of energy consumption at a factory is always challenges in cleaner production and pollution control decision making. The case study has conducted at a representative steel making complex in Vietnam, simulating the material flows of water and waste streams, and energy balance (EB) for water production and wastewater treatment processes, by using STAN (subSTance flow ANalysis) and SANKEY software, respectively. Input data were taken from secondary data sources, and additional monitoring of wastewater flows at the complex. COD was a selected parameter for material flow analysis (MFA) for evaluation of performance of wastewater treatment plants. Further, two scenarios were given for comparison of water and energy consumptions at existing and upgraded wastewater treatment plants. The results have shown that scenario 2, using disc filter (DF) and ultrafiltration (UF) membrane in combination with ultraviolet (UV) for improving quality of treated wastewater, could allow factory to reuse wastewater for production purposes. At the saved amount of fresh water 10,000 m3/day by reuse of treated wastewater, the saved energy was 1,489.5 kWh/day. The quantitative flows of MFA and EB were clearly presented in STAN and SANKEY diagrams.
EVALUATING FUTURE WATER QUALITY OF URBAN RIVERS IN HANOI UNDER EFFECT OF URBANIZATION AND CLIMATE CHANGE - THE APPLICATION OF WEAP MODEL FOR CAU BAY RIVER
Authors: Nguyen Lan Huong , Tran Viet Nga Thi
Published: January 2021

Every day, up to 750,000 cubic meters of wastewater in Hanoi metropolitan areas is discharged directly into rivers and lake, of which only 10% is treated to the Vietnamese standards. According to the water drainage development master plan for the capital city of Hanoi until 2030, the government aim at dealing with flooding and improve environmental sanitation for local residents. With respect to the baseline and Master plan implementation scenarios, this study evaluates the future water quality of urban rivers in Hanoi under the effect of urbanization and climate change using Water Evaluation And Planning tool (WEAP) and take the Cau Bay catchment as the case study. The result shows that, without implementation of wastewater treatment plant, the water quality of Cau Bay River will be worse with the DO in dry season is 0.2-1.2 mg/l and BOD is 52.0-55.0 mg/l. With the implementation of Master plan, the level of DO and BOD would be 7.1-7.3 mg/l and 7.0-13.8 mg/l respectively in the dry season whereas the values are 3.7 mgO/l and 36.1-41.8 mg/l in the wet season. The degradation of wastewater during the wet season is results from the combine- overflow sewage system as designed in the master plan.
ENHANCEMENT OF WATER DISINFECTION EFFICIENCY USING UV RADIATION WITH THE AID OF A LIQUID-FILM-FORMING DEVICE
Authors: Loc Dang Thi Thanh , Tuan Le Van , Harada Hidenori , Hieu Duong Van , Lieu Pham Khac , Chung Duong Thanh
Published: January 2021

This study presents results for the use of UV radiation and a liquid-film-forming device (LFFD) for disinfection of water. Escherichia coli was used as a model microorganism for examining the bactericidal performance of UV. Bacterial inactivation was conducted in a LFFD with various condition of UV dosages, air flow rates, and initial bacterial concentrations. Combined UV/LFFD treatments resulted in a greater inactivation efficiency than those for the UV treatment alone. Combined treatment with UV (UV dosage = 3.020×10-20 kJ/m2, initial bacterial concentration = 1.1×105 – 2.2×105 CFU/mL, and room temperature) and LFFD (air flow rate = 2400 L/min) caused 89% inactivation in terms of the bacterial load. In contrast, when the UV treatment was used, only 29% of the E. coli load was inactivated. These findings suggest that the combined UV/LFFD treatments could provide a promising method for water disinfection.