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1.
Sustainability: A Study of the Level of Ecological Behavior of Postgraduate Students in Brazil 下载免费PDF全文
Damiana Machado de Almeida Lucia Rejane da Gama Madruga Luis Felipe Dias Lopes Lucas Veiga Avila Thiago Kader Rajeh Ibdaiwi 《环境质量管理》2015,25(2):71-89
The decline in the supply of natural resources is a cause for concern, especially given continued worldwide population growth. New habits and attitudes toward resource use are slowly being introduced into the everyday lives of persons residing in a number of countries. The term “ecological behavior” refers to acting in favor of the environment, whether these actions are voluntarily or not, or learned or not (Pato & Tamayo, 2006 ). The general objective of this study is to identify the environmental behavior—one of several terms used interchangeably with ecological behavior—of graduate students from a Brazilian federal institution of higher education. We chose this particular group because many of them already act, or will act, as professors. Thus, by virtue of their positions, they will function as opinion leaders who will influence the education of future professionals, establishing a chain through which shared values can gradually change the environmental behavior of society. 相似文献
2.
Hycenth Tim Ndah Johannes Schuler Sandra Uthes Peter Zander Karim Traore Mphatso-S Gama Isaiah Nyagumbo Bernard Triomphe Stefan Sieber Marc Corbeels 《Environmental management》2014,53(3):620-635
Despite the reported benefits of conservation agriculture (CA), its wider up-scaling in Sub-Saharan Africa (SSA) has remained fairly limited. This paper shows how a newly developed qualitative expert assessment approach for CA adoption (QAToCA) was applied to determine its adoption potential in SSA. CA adoption potential is not a predictor of observed adoption rates. Instead, our aim was to systematically check relevant factors that may be influencing its adoption. QAToCA delivers an assessment of how suitable conditions “and thus the likelihood for CA adoption” are. Results show that the high CA adoption potentials exhibited by the Malawi and Zambia case relate mostly to positive institutional factors. On the other hand, the low adoption potential of the Zimbabwe case, in spite of observed higher estimates, is attributed mainly to unstable and less secured market conditions for CA. In the case of Southern Burkina Faso, the potential for CA adoption is determined to be high, and this assessment deviates from lower observed figures. This is attributed mainly to strong competition of CA and livestock for residues in this region. Lastly, the high adoption potential found in Northern Burkina Faso is explained mainly by the fact that farmers here have no alternative other than to adopt the locally adapted CA system—Zaï farming. Results of this assessment should help promoters of CA in the given regions to reflect on their activities and to eventually adjust or redesign them based on a more explicit understanding of where problems and opportunities are found. 相似文献
3.
Adriana Melo Jousilene de Sales Tavares Marianny de Assis Costa Renato Santana de Aguiar Gustavo Malinger Fabiana de Oliveira Melo Mariana Balbino da-Silva Bruno Luiz Fonseca Schamber-Reis Gabriela Gama Amilcar Tanuri Leila Chimelli Patricia Oliveira-Szejnfeld Melania M. Ramos de Amorim 《黑龙江环境通报》2020,40(13):1732-1740
4.
Gama Nuno Godinho B. Barros-Timmons Ana Ferreira Artur 《Journal of Polymers and the Environment》2022,30(4):1451-1461
Journal of Polymers and the Environment - Aiming at minimizing the issues associated with the disposal of polymers, in this study, elastomeric materials derived from 100% recycled feedstocks were... 相似文献
5.
Miagostovich Marize Pereira Rocha Mônica Simões dos Reis Fabiane Bertoni Sampaio Marcelo Santos de Saldanha da Gama Gracie Carrijo Renata Malta Fabio Correia Rodrigues Janaína Genuino Amanda Ribeiro da Silva Assis Matheus Fumian Tulio Machado Barrocas Paulo Rubens Guimarães 《Food and environmental virology》2020,12(2):130-136
Food and Environmental Virology - The availability of drinking water is one of the main determinants of quality of life, disease prevention and the promotion of health. Viruses are important agents... 相似文献
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Marize Pereira Miagostovich Flávia Ramos Guimarães Carmen Baur Vieira Tulio Machado Fumian Nilson Porto da Gama Matias Victoria Jaqueline Mendes de Oliveira Anna Carolina de Oliveira Mendes Ana Maria Coimbra Gaspar José Paulo Gagliardi Leite 《Food and environmental virology》2014,6(2):110-115
The preservation of water resources is one of the goals of the designation of parks that act as natural reservoirs. In order to assess the impact of the presence of humans in an environmental preservation area bordering urban areas, the presence of four pathogenic enteric viruses [group A rotavirus (RV-A), norovirus (NoV), human adenoviruses (HAdV), and hepatitis A virus (HAV)], as well as the physico-chemical parameters, and Escherichia coli levels were assessed in riverine water samples. From June 2008 to May 2009, monthly monitoring was performed along the Engenho Novo River. RV-A, NoV, and HAdV were observed in 29 % (31/108) of the water samples, with concentrations of up to 103 genome copies/liter. The natural occurrence of infectious HAdV was demonstrated by Integrated Cell Culture-PCR (ICC-PCR). This study confirms the suitability of using the detection of fecal-oral transmitted viruses as a marker of human fecal contamination in water matrices and indicates the spread of pathogenic viruses occurring in an alleged area of environmental protection. 相似文献
8.
Beatriz Jabour Figueiraujo Vescovi Rosa Luciana Falci Theza Rodrigues Gilmar Simões de Oliveira Roberto da Gama Alves 《Environmental monitoring and assessment》2014,186(11):7771-7779
Considering the importance of benthic macroinvertebrates for diagnosis of variations in the ecological conditions of aquatic habitats, the aim of this study was to investigate the structure of the Chironomidae and Oligochaeta assemblages along an organic pollution gradient. The fauna specimens were obtained with the use of artificial substrates, and the environmental variables were recorded at five sites of the São Lourenço River, during 12 months. Metrics of the assemblage and detrended correspondence analysis were used to verify the response of the fauna to the pollution gradient. Procrustes analysis was used to verify whether the data on the Chironomidae and Oligochaeta assemblages, as well as the taxonomic and numerical resolution of these groups, provide similar results in relation to the pollution gradient. The richness, evenness, and taxonomic composition of the Chironomidae and Oligochaeta assemblages varied significantly among the collection sites, with distinct conservation conditions. Genera of the subfamilies Orthocladiinae and Tanypodinae were associated with the sites upstream of the urban area, where the dissolved oxygen levels are higher. Species of Oligochaeta and the genus Chironomus were associated with more organically polluted sites. No concordance was observed in the response of the Chironomidae and Oligochaeta assemblages in relation to the environmental variables, indicating the need to use both groups in biomonitoring studies. On the other hand, both the data on composition (presence or absence) and those on the lowest taxonomic resolution (abundance of subfamilies) were effective to diagnose the pollution gradient in the river studied. Therefore, when the environmental conditions along a river’s gradient are contrasting, we suggest the use of the lowest taxonomic resolution of Chironomidae and Oligochaeta in biomonitoring. That procedure considerably reduces the assessment time, besides being a method that can be used by people not specializing in the taxonomy of groups. 相似文献
9.
E. E. G. Clavico G. Muricy B. A. P. da Gama D. Batista C. R. R. Ventura R. C. Pereira 《Marine Biology》2006,148(3):479-488
In the Brazilian coast, high numbers of the small brittle star Ophiactis savignyi usually live associated with the sponge Geodia corticostylifera (Demospongiae, Geodidae), but not with other sympatric sponge species. In order to check whether this association was related
only with the physical shelter provided by the sponge body or was chemically mediated, the crude organic extract of G. corticostylifera was added to sponge mimics made of phytagel and spongin skeleton. Control and treated mimics were simultaneously offered
to previously sponge-associated O. savignyi in both static seawater and flow-through laboratory experiments. Ophiuroids were allowed to move towards the preferred mimic.
The defensive properties of the sponge extract against fish predation and fouling were also evaluated. Chemotaxis assays showed
that symbiotic ophiuroids were able to chemically recognize its host sponge, moving significantly more towards mimics containing
G. corticostylifera extract. Chemical deterrence assays showed that the natural concentration of the extract of this sponge was also able to
inhibit generalist fish predation on field experiments and the attachment of the common mussel Perna perna in laboratory assays. These results indicate that the crude extract of G. corticostylifera plays multiple functions in the marine environment, presumably being responsible for a closer association of this sponge
with O. savignyi, providing protection for this ophiuroid and inhibition of epibionts on itself. 相似文献
10.
Yong Sheng Aleksey Benderev Donka Bukolska Kenneth Imo-Imo Eshiet Carlos Dinis da Gama Torsten Gorka Michael Green Nikolay Hristov Ismini Katsimpardi Thomas Kempka Jordan Kortenski Nikolaos Koukouzas Natalie Nakaten Vasilis Sarhosis Ralph Schlueter Vidal Navarro Torres Ana Carina Veríssimo Velemir Vesselinov Dongmin Yang 《Mitigation and Adaptation Strategies for Global Change》2016,21(4):595-627
This paper presents the outcome of a feasibility study on underground coal gasification (UCG) combined with direct carbon dioxide (CO2) capture and storage (CCS) at a selected site in Bulgaria with deep coal seams (>1,200 m). A series of state-of-the-art geological, geo-mechanical, hydrogeological and computational models supported by experimental tests and techno-economical assessments have been developed for the evaluation of UCG-CCS schemes. Research efforts have been focused on the development of site selection requirements for UCG-CCS, estimation of CO2 storage volumes, review of the practical engineering requirements for developing a commercial UCG-CCS storage site, consideration of drilling and completion issues, and assessments of economic feasibility and environmental impacts of the scheme. In addition, the risks of subsidence and groundwater contamination have been assessed in order to pave the way for a full-scale trial and commercial applications. The current research confirms that cleaner and cheaper energy with reduced emissions can be achieved and the economics are competitive in the future European energy market. However the current research has established that rigorous design and monitor schemes are essential for productivity and safety and the minimisation of the potential environmental impacts. A platform has been established serving to inform policy-makers and aiding strategies devised to alleviate local and global impacts on climate change, while ensuring that energy resources are optimally harnessed. 相似文献