Role of chemical treatments in pharmaceuticals degradation and its consequences and environmental risks

2020 ◽  
pp. 521-548
Author(s):  
Majid Gholami Shirkoohi ◽  
Ali Khosravanipour Mostafazadeh ◽  
Yassine Ouarda ◽  
Patrick Drogui
Keyword(s):  
Environmental Risks ◽  
Chemical Treatments ◽  
Pharmaceuticals Degradation

scholarly journals Megacities in climate governance: the case of Rio de Janeiro

2016 ◽  
Vol 17 ◽  
Author(s):  
Alberto Teixeira Da Silva ◽  
Mercedes Pardo Buendía
Keyword(s):  
Technological Innovation ◽  
Rio De Janeiro ◽  
Vital Role ◽  
Environmental Risks ◽  
Climate Governance ◽  
Latent Form ◽  
Domestic Policies ◽  
Social Empowerment

This paper shows the vital role of cities in climate governance, as places where the crisis is expressed in latent form, but also as emblematic spaces in terms of technological innovation and social empowerment. It discusses challenges of megacities like Rio de Janeiro, given their vulnerability, resilience and environmental risks to the transition of a more intelligent and sustainable patterns of urbanization, through its domestic policies and paradiplomacy networks.Este artigo mostra o papel vital das cidades na governança do clima, como lugares onde a crise se expressa de forma latente, mas também como espaços emblemáticos em termos de inovação tecnológica e empoderamento social. Discute os desafios de megacidades como Rio de Janeiro, considerando suas vulnerabilidades, riscos socioambientais e resiliências para a transição de modelos mais inteligentes e sustentáveis de urbanização, através de suas políticas domésticas e redes de paradiplomacia. 

scholarly journals Digital Storytelling in Tomorrow’s World: Through Students’ Metaphors

2015 ◽  
Vol 8 (3Α) ◽  
Author(s):  
Marianna Vivitsou ◽  
Dimitris Konetas ◽  
Anastasia Tzima ◽  
Christos Pasias
Keyword(s):  
Cultural Landscapes ◽  
Environmental Risks ◽  
Learner Engagement ◽  
Human Relationships ◽  
Student Views ◽  
Digital Stories ◽  
Increasing Demand ◽  
Active Learner ◽  
Do So

The increasing demand for global citizenship education and the expansive use of digital technologies for learning create the need for innovative pedagogical approaches and classroom practices. These should encourage active learner engagement and a critical view of the surrounding world, such as, for instance, the role of social networks in young people’s lives, environmental hazards and how human relationships develop nowadays.<br />In this study we will discuss storytelling in a social network for pedagogy by examining how adolescent (14 and 15 year-old) students from a lower secondary school in Greece experienced knowledge construction, sharing and learning with networked peers from Finland and California in the Boundless Classroom project. To do so, we will analyze the content of student interviews and their digital stories.<br />As part of their learning activities the participating students from California, Finland and Greece created digital stories and developed traditional (e.g., speaking, writing etc.), digital (e.g., filming, editing, remixing etc.) and networking (e.g., appreciating and responding to projected cultural landscapes) literacies. Importantly, among others, through stories students expressed their views and worries concerning potential dangers of social networking, and what attitudes would reduce environmental risks. It is these student views that we intend to analyze in order to unlock meanings and metaphors underlying pedagogical storytelling that combined the physical (or actual) and the digital site of learning.

scholarly journals A Note on the Representation of Environmental Risks in the News

2000 ◽  
Keyword(s):  
Space Exploration ◽  
News Coverage ◽  
Environmental Hazards ◽  
Environmental Risks ◽  
Large Majority ◽  
Newspaper Coverage ◽  
Toxic Exposure ◽  
Space Probe ◽  
The Media

This paper examines the role of the media in representing environmental risks to society, focusing on how environmental realities are constructed via the objectivist and subjective perspectives. This study explores the construction of reality centered on space exploration, namely, the Cassini space probe. In this study, 200 respondents were asked to read four news articles from various sources and comment on the information contained in the articles. Their comments addressed the extent to which the articles were useful in helping them assess their risk to potential plutonium exposure in the event of a launch disaster. A large majority of the respondents noted that while the information presented by newspaper coverage helped to provide insight, the news coverage often left more questions than answers. However, respondents also noted that the information was not sufficient to help draw specific conclusions about their risk of toxic exposure. Rather, this information was considered adequate for making a general assessment of potential environmental hazards in their immediate environment.

scholarly journals Selected Process Alternatives for Biomass Refining: A Review

2010 ◽  
Vol 4 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Patricia Gullón ◽  
Enma Conde ◽  
Andrés Moure ◽  
Herminia Domínguez ◽  
Juan Carlos Parajó
Keyword(s):  
Raw Materials ◽  
Added Value ◽  
Chemical Treatments ◽  
Low Volume

The role of biorefineries in the production of energy and chemicals from biomass of lignocellulosic nature is reviewed. Special attention is devoted to biorefinery schemes dealing with the fractionation of lignocellulosic raw materials by chemical treatments. The potential of hydrothermal treatments as the first stage of future biorefineries is discussed. Special attention is devoted to the low-volume, high-added value products that can be solubilized by this type of technology.

scholarly journals INTELLIGENT SOLUTIONS IN THE CONSTRUCTION OF MODERN BALING MACHINES

2020 ◽  
Author(s):  
I.V. Kokunova ◽  
Keyword(s):  
Working Conditions ◽  
Agricultural Production ◽  
Digital Technologies ◽  
Environmental Risks ◽  
Electronic Systems ◽  
Feed Production ◽  
Machine Operators ◽  
Forage Harvester

The article shows the role of digital machine technologies used in feed production. The analysis of intelligent solutions used in the designs of modern balers from the world's leading manufacturers of agricultural machinery is carried out. It is noted that electronic systems not only perform information functions during the operation of forage harvesters, but also provide control over the operation of both individual assemblies and systems of balers, and the entire machine-tractor unit. Digital technologies make it possible to optimize the operation of the forage harvester, improve the quality of harvested forage, reduce environmental risks, improve the working conditions of machine operators, as well as increase the attractiveness and prestige of agricultural professions, and attract promising young personnel to agricultural production.

scholarly journals MATERIAIS PEDAGÓGICOS PARA O ENSINO DE GEOGRAFIA FÍSICA NO ENSINO FUNDAMENTAL II

2021 ◽  
Vol 11 (21) ◽  
Author(s):  
Luana De Almeida Rangel
Keyword(s):  
Middle School ◽  
Core Curriculum ◽  
Basic Education ◽  
Physical Geography ◽  
Environmental Risks ◽  
Geographic Education ◽  
Geography Teaching ◽  
The Subject ◽  
Common Core Curriculum

Esta pesquisa parte de inquietações referentes ao papel da Geografia Física no currículo de Geografia na educação básica e da abordagem dos conteúdos relacionados à temática. Portanto, a pesquisa teve como objetivo propor a criação e utilização de recursos didático-pedagógicos para o ensino de Geografia Física. (GF) Para tal, analisou-se o livro didático (LD) “Expedições Geográficas” do 6° ano do Ensino Fundamental visando identificar lacunas na abordagem de conteúdos. Optou-se pela análise do livro do 6° ano, pois, apresenta, de acordo com a BNCC e o Currículo Carioca, mais conteúdos voltados para a temática de GF. Os materiais e atividades lúdico-pedagógicas elaborados foram baseados nas lacunas encontradas no LD com relação à GF. Com a análise do LD, observou-se que há ausência de temáticas específicas relacionadas à sustentabilidade, riscos e solos. A elaboração de materiais para o ensino desses temas é uma ferramenta que pode contribuir para a aprendizagem significativa e despertar o interesse dos estudantes. Conclui-se que há necessidade da produção de materiais para abordar temas ausentes no LD. Além disso, verificou-se que atividades lúdicas são importantes para o ensino de Geografia Física, pois permitem maior envolvimento dos alunos com os conteúdos. Palavras-chave Recursos pedagógicos, Materiais lúdicos, Educação Geográfica, Currículo Carioca.   PEDAGOGICAL MATERIALS FOR PHYSICAL GEOGRAPHY TEACHING IN MIDDLE SCHOOL Abstract This research starts from concerns regarding the role of Physical Geography in the Geography curriculum in basic education and the approach to the contents related to the theme. Therefore, these research aimed to propose the creation and use of didactic-pedagogical resources for teaching Physical Geography.For this, the textbook “Geographical Expeditions” of the 6th year of middle school was analyzed in order to identify gaps in the content. We opted for the analysis of the 6th grade book, because it has, according to the BNCC and the Carioca Curriculum, more content focused on the subject of Physical Geography. According to the Brazilian Common Core Curriculum and the Carioca Curriculum, the 6th grade has more content about physical geography. The pedagogical materials and activities developed were based on the gaps found in the textbook. It was also observed that such content has gaps, such as the lack of integration between themes related to sustainability, socio-environmental risks and soils. It is concluded that the development of playful materials for teaching Physical Geography is a tool that can contribute to meaningful learning. In addition, it was found that recreational activities are important for Physical Geography learning. Keywords Pedagogical resources, Playful materials, Geographic Education, Carioca Curriculum.

scholarly journals Evaluation of toxic effect of bamboo preservatives on Lactuca sativa germination and growth

2021 ◽  
Vol 43 ◽  
pp. e34
Author(s):  
Hugo Rocha Scharfenberg ◽  
Marcos Massao Shimano ◽  
Antônio Ludovico Beraldo ◽  
Ana Carolina Borella Marfil Anhê
Keyword(s):  
Electrical Conductivity ◽  
Boric Acid ◽  
Toxic Effect ◽  
Environmental Impacts ◽  
Copper Sulfate ◽  
Root Development ◽  
Lactuca Sativa ◽  
Environmental Risks ◽  
Chemical Treatments ◽  
Germination And Growth

Materials such as wood and bamboo in their various applications are subject to degradation by deteriorating organisms like fungi and insects. Chemical treatments are routinely used by bamboo professionals aiming to control this degradation. However, it is usual the dispose of these used solutions on soil and the environmental risks and effects on vegetation of this improper disposal are still unknown. Thus, this study aims to evaluate the phytotoxicity of CCB solutions (compound based on copper, chromium and boron), tetrahydrate sodium octaborate and CB (copper sulfate with boric acid) under different concentrations in the germination and development of lettuce (Lactuca sativa). The pH and electrical conductivity of the prepared solutions were also measured. The results show that the three preservatives are phytotoxic and inhibit root development, even after dilutions of 50 times that used by professionals. Thus, the disposal of these effluents in the soil or water bodies may have negative environmental impacts on vegetation, requiring treatment after use on preservation of the culms or higher dilutions of the effluents before the disposal.

scholarly journals Formation of programmes the housing-and-communal utilities complex development

2020 ◽  
Vol 217 ◽  
pp. 07009
Author(s):  
Elena Vasilyeva ◽  
Artem Nelyubov
Keyword(s):  
Life Quality ◽  
Environmental Risks ◽  
Public Utilities ◽  
Research Purpose ◽  
Theoretical Justification ◽  
Sector Condition ◽  
Complex Development ◽  
Municipal Development

The article is devoted to the problems of housing-and- communal services in the cities of Russia and their development in modern conditions. The research purpose was to give the theoretical justification as well as to develop some methodical recommendations on formation and implementation of the programmes of complex development of housing- and-communal services in the municipal units. The authors systematized the typical properties and specifics of housing-and-communal utilities, the role of the sector in preserving the environment, revealed the factors complicating their development significantly, carried out the analysis of the housing-and-communal sector condition and the sector’s needs for investments. According to the analysis results, the authors prove that modernization and improvement of housing-and-communal sector demands drawing up target programmes of complex development. In article Principles and stages of the development of the programmes of the improvement of the housing-and-communal utilities were offered, the directions, considered to be the most relevant, were pointed out. The authors recognize such consequence of the housing-and-communal utilities modernization as the increase of the utility tariffs and the need of assessment of the availability of housing-and-communal services for consumers. The authors offer the new indicator, namely, the share of the provided subsidies in the total amount of payments for premises and utilities, for the improvement of such assessment. The results of the research can be used by the practicians, forming target municipal development programmes of housing-and-public utilities development within the general strategies of the cities and regions development, aimed at the improvement of the population life quality and at the decrease in the environmental risks.

Characteristics of Acoustic Resonance Excitation by Flow Around Inline Cylinders

2019 ◽  
Vol 141 (5) ◽  
Author(s):  
Mahmoud Shaaban ◽  
Atef Mohany
Keyword(s):  
Acoustic Pressure ◽  
Tube Bundle ◽  
Cross Flow ◽  
Acoustic Resonance ◽  
Environmental Risks ◽  
Critical Parameters ◽  
Resonance Excitation ◽  
Tube Bundles ◽  
Flow Oscillations

Excitation of acoustic resonance by flow over tube bundles in heat exchangers can cause hazardous levels of acoustic pressure that may pose operational and environmental risks. The previous studies have indicated that inline arrangements of cylinders excite acoustic resonance of a nature different from that of a single cylinder. In this work, the excitation of acoustic resonance by cross-flow around inline arrangements of cylinders is experimentally investigated to identify the role of critical parameters on resonance characteristics. Results show that flow around inline tube bundles can excite acoustic resonance due to periodic flow oscillations over the cavity formed between successive cylinders rather than periodic wake phenomena. Based on precoincidence resonance characteristics, a criterion is introduced to predict the occurrence of acoustic resonance in inline arrangements of cylinders. The proposed parametric criterion does not only identify the potential for resonance excitation for inline arrangements of cylinders experimentally investigated in this work but it also provides a method to separate resonant from nonresonant cases for inline tube bundle data from the literature.

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