Academic literature on the topic 'Lentic environment'

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Journal articles on the topic "Lentic environment"

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Gonçalves, Inês Corrêa, Bruno Cid, Amanda Frederico Mortati, Letícia Barbosa Quesado, and Jorge Luiz Nessimian. "Relative size of gills of Cloeodes jaragua Salles & Lugo-Ortiz, 2003 (Ephemeroptera, Baetidae) on pool and riffle areas of streams at the Atlantic Rainforest." Biota Neotropica 11, no. 2 (2011): 217–20. http://dx.doi.org/10.1590/s1676-06032011000200022.

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Physical environment of streams present many challenging factors to the organisms living under its influence. Water speed, one of the most important factors affecting such environments, has local influence on substrata, temperature, and oxygen levels. It acts determining species distributions and morphological and behavioral adaptations of organisms. The aim of this study was to assess the relative size of gills of Cloeodes jaragua on two mesohabitats: lentic environment (river dam) and lotic environment (fast flowing area of a stream) in Parque Nacional da Serra dos Órgãos (RJ, Brazil). Twenty individuals were collected on each environment and width of the head and gills were taken. Lentic environment showed nymphs with broader and more constant measurements than the lotic environment. The former, despite being composed of nymphs on different stages of development, presented individuals with narrower gills. Both, head width and environment type explained gills size, showing that streams habitat conditions are important in shaping the morphology of these animals.
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Ferreira Portela, Joelma, João Pedro Rudrigues de Souza, Myller de Sousa Tonhá, José Vicente Elias Bernardi, Jérémie Garnier, and Jurandir Rodrigues SouzaDe. "Evaluation of Total Mercury in Sediments of the Descoberto River Environmental Protection Area—Brazil." International Journal of Environmental Research and Public Health 17, no. 1 (2019): 154. http://dx.doi.org/10.3390/ijerph17010154.

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To evaluate the total mercury accumulation (THg) in the Descoberto river basin environmental protection area (DREPA), nine sediment and water samples were collected from the Descoberto reservoir (lentic environment), and 23 in its tributaries (lotic environment), which are located in a densely urbanized area within the Descoberto river watershed, Brazil. The following physicochemical parameters of water were determined: dissolved oxygen (DO); hydrogen potential (pH); total dissolved solids (TDS); nitrate (NO3−); chloride (Cl−); temperature (T); sulfate (SO42−), and in sediment, the concentration of total mercury (THg) and volatile material (VM) was determined. THg concentrations in sediments showed a significant difference (p = 0.002) between tributaries (0.03 µg g−1 ± 0.02) and reservoir (0.08 µg g−1 ± 0.04), indicating accumulation in the lentic environment. Most of the results evaluated for ecotoxicological risks presented values below the concentration, at which adverse effects would rarely be observed, ERL (effects range low). However, in relation to the enrichment factor (EF), applied to identify the anthropogenic contribution, the results indicate that most of the samples are moderately polluted through atmospheric deposition due to vehicular traffic and agriculture. These results show that the likelihood of methylation in the lentic environment is higher than in the lotic environment.
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Sekar, R., V. P. Venugopalan, K. Nandakumar, K. V. K. Nair, and V. N. R. Rao. "Early stages of biofilm succession in a lentic freshwater environment." Hydrobiologia 512, no. 1-3 (2004): 97–108. http://dx.doi.org/10.1023/b:hydr.0000020314.69538.2c.

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Dunn, Nicholas R., Leanne K. O’Brien, Christopher P. Burridge, and Gerard P. Closs. "Morphological Convergence and Divergence in Galaxias Fishes in Lentic and Lotic Habitats." Diversity 12, no. 5 (2020): 183. http://dx.doi.org/10.3390/d12050183.

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The influence of contrasting lentic and lotic hydrological environments on the morphology of members of the Galaxias vulgaris species complex was examined. Morphological variation between habitat types was investigated by comparison of populations of Galaxias brevipinnis (inferred ancestor), Galaxias gollumoides (roundhead morphotype) and Galaxias vulgaris (flathead morphotype). Interspecific convergence and intraspecific divergence of morphological characters were demonstrated, representing general shifts in morphology towards a common functional form in particular hydrological environments. In all species, more lentic Galaxias had longer bodies; shorter, more stout caudal peduncles; longer, narrower pectoral fins; and longer, wider heads with larger mouths. In comparison, lotic Galaxias had relatively shorter bodies; more slender caudal peduncles; broader pectoral fins; and shorter flatter heads, with smaller mouths. This study suggests that the hydrological environment of a habitat is an important factor moulding and maintaining an individual fish’s morphology to a particular habitat type, most likely representing a phenotypic plastic response.
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Ion, Mihaela C., Adela E. Puha, Tudor Suciu, and Lucian Pârvulescu. "Get a grip: unusual disturbances drive crayfish to improvise." Behaviour 157, no. 2 (2020): 101–20. http://dx.doi.org/10.1163/1568539x-00003583.

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Abstract Animals that face unusual situations react instinctively in order to efficiently adapt to changes in the environment. Persistence leads training and learning the developed solution, which can then be applied to similar challenges in the future. We experimented on adult narrow-clawed crayfish extracted from both lentic and lotic habitats. We proved that the latter were more prone to grabbing objects during acute exposure to water currents. Chronic exposure of specimens from lentic habitat to water currents led to intense training in clumping activity, gripping quickly to adherent side objects regardless of the origin (natural or artificial). The behaviour was significantly reduced after the trained specimens were returned to an environment without water currents for a four-week period. The results suggest that crayfish can learn a solution when faced with a disturbance; once the disturbance disappeared, the trained response was no longer needed and lost.
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Machado, Vanessa de Souza, Cecilia Volkmer-Ribeiro, and Roberto Iannuzzi. "Inventary of the Sponge Fauna of the cemitério Paleolake, Catalão, Goiás, Brazil." Anais da Academia Brasileira de Ciências 84, no. 1 (2012): 17–34. http://dx.doi.org/10.1590/s0001-37652012000100004.

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The Cemitério Paleolake, Catalão, Goiás, is a lacustrine deposit that is rich in spicules of continental sponges. These spicules, which are present in three sections (1-3), were analyzed for the taxonomic identification of the species in order to reconstruct the late Quaternary palaeoenvironment. An indigenous assemblage of lentic sponges was found, consisting of Metania spinata (Carter 1881), Dosilia pydanieli Volkmer-Ribeiro (1992), Radiospongilla amazonensis Volkmer-Ribeiro and Maciel (1983), Trochospongilla variabilis Bonetto and Ezcurra de Drago (1973), Corvomeyenia thumi (Traxler 1895), Heterorotula fistula Volkmer-Ribeiro and Motta (1995), plus Corvoheteromeyenia australis (Bonetto and Ezcurra de Drago 1966), which here has its first record in an assemblage formed by biosiliceous deposits. Furthermore, at the base of the sections, spicules of sponges from lotic environments were detected, including Corvospongilla seckti Bonetto and Ezcurra de Drago (1966), Oncosclera navicella (Carter 1881) and Eunapius fragilis (Leidy 1851), which suggests a contribution from flowing water. We identified 25 spongofacies horizons caused by sponge assemblages typical of a lentic environment, dated from at least 39,700 years BP., and currently occurring in lakes typical of the Cerrado Biome.
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Booth, AJ, WT Kadye, T. Vu, and M. Wright. "Rapid colonisation of artificial substrates by macroinvertebrates in a South African lentic environment." African Journal of Aquatic Science 38, no. 2 (2013): 175–83. http://dx.doi.org/10.2989/16085914.2012.744687.

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Sekar, R., K. Nandakumar, V. P. Venugopalan, K. V. K. Nair, and V. N. R. Rao. "Spatial variation in microalgal colonization on hard surfaces in a lentic freshwater environment." Biofouling 13, no. 3 (1998): 177–95. http://dx.doi.org/10.1080/08927019809378380.

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Silva, G. K. V. P. T., W. A. D. Mahaulpatha, and Anslem De Silva. "Amphibian abnormalities and threats in pristine ecosystems in Sri Lanka." Journal of Threatened Taxa 11, no. 15 (2019): 15004–14. http://dx.doi.org/10.11609/jott.5394.11.15.15004-15014.

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Amphibian abnormalities are caused by numerous etiologies prevailing in the environment. Since amphibians are good bio indicators of the environment, amphibian abnormalities are popularly known as a veritable ecological screening tool to assess ecosystem health. The present study was carried out encompassing within and outside the Horton Plains National Park areas, from January to November 2017. Distribution of amphibian morphological abnormalities were assessed in and around the five lentic water bodies through gross visual encounter. Six quadrates of 1m×2m were randomly placed in each sampling site. Frequency and composition of amphibian abnormalities were assessed in a total of 694 amphibians, belonging to four families and 11 species. Thereby, 4.5% and 80.87% abnormality indexes were accounted for respectively within and outside the park, comprehended surficial abnormalities, ectromelia and femoral projection abnormality types. Surficial abnormalities were the most predominant in both localities, generally occurring at the hind limb region of pre-mature stages of Taruga eques. Two lentic water bodies were identified as “abnormality hotspots” within and outside the Horton Plains National park; however, a multiplicity of possible combinations of potential causes of abnormalities were present in the environment. Hence, finding the exact causes of amphibian abnormalities are an extremely difficult exercise in the field.
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Ferreira, Marco, João Gago, and Filipe Ribeiro. "Diet of European Catfish in a Newly Invaded Region." Fishes 4, no. 4 (2019): 58. http://dx.doi.org/10.3390/fishes4040058.

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Biological invasions are considered to be one of the leading causes of biodiversity loss worldwide. Freshwater ecosystems are amongst the most biodiverse, containing about 50% of the world’s known fish species but, ironically, are the most invaded ecosystems. In Portuguese freshwaters, there are currently 20 identified non-native fishes, arriving at an unprecedented rate of a new species every two years. A recent non-native is the European catfish Silurus glanis, a top predator native to Central and Eastern Europe, that arrived at the Lower Tagus (Portugal) circa 2006. This study compares the dietary habits of this top predator in two different habitats of the Lower Tagus in order to evaluate its potential impact. The stomach contents of 96 individuals were analyzed, 61 from the lotic environment and 35 from the lentic systems. A total of 66 stomachs contained prey items, 38 from the lotic and 28 from the lentic. Diet varied considerably between habitats, with shrimp and crayfish being the most abundant prey items in the lentic systems and shrimp and fish the most abundant prey items in the lotic section. Tendency to piscivory was observed in large-sized individuals. Overall, the findings in this study provide the first evidence of the potential impacts of European catfish through predation on the fish communities.
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Dissertations / Theses on the topic "Lentic environment"

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Christofoletti, Cintya Aparecida. "Avaliação dos potenciais citotóxico, genotóxico e mutagênico das águas de um ambiente lêntico, por meio dos sistemas-teste de Allium cepa e Oreochromis niloticus /." Rio Claro : [s.n.], 2008. http://hdl.handle.net/11449/87679.

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Orientador: Carmem Silvia Fontanetti Christofoletti<br>Banca: Maria Aparecida Marin Morales<br>Banca: Silvia Tamie Matsumoto<br>Resumo: A degradação dos recursos hídricos, como os ambientes lênticos, dentre eles, os lagos, é uma das maiores preocupações atualmente, visto que esta pode causar danos diretos ou indiretos à saúde e à sobrevivência dos organismos expostos. Um dos fatores que contribui para a alteração da qualidade das águas de ambientes lênticos é o despejo de efluentes, principalmente àqueles de origem doméstica, portadores de substâncias que chegam a ser tóxicas para o meio aquático. Por meio dos testes citogenéticos, utilizando os mais diversificados organismos-teste, é possível biomonitorar a extensão da poluição e avaliar os efeitos dessas substâncias presentes no ambiente natural. Com esse intuito, o presente trabalho tomou por modelo de estudo, um lago urbano artificial (Lago Azul, Rio Claro-SP) e objetivou avaliar o potencial citotóxico, genotóxico e mutagênico das águas desse ambiente, por meio dos testes de aberrações cromossômicas e micronúcleos, em células meristemáticas de Allium cepa (cebola), em dois tratamentos: o contínuo e o período de recuperação, em água ultra pura; e, pelo teste do micronúcleo associado às anormalidades nucleares e do ensaio do cometa, aplicados em eritrócitos de Oreochromis niloticus (tilápia). Coletas de águas sazonais foram realizadas na estação seca (agosto/2006 e agosto/2007) e na estação chuvosa (março/2007 e fevereiro/2008). Análises físico-químicas foram feitas para uma coleta de cada estação. A partir dos dados obtidos, pode-se inferir que as águas desse ambiente lêntico apresentam potencial citotóxico, genotóxico e mutagênico, nas duas estações de coletas, para os dois organismos-teste empregados. As análises de metais revelaram concentrações acima do permitido pela legislação de Ag, Cd2+, Cu e Fe3+, em ambas as estações. Embora os... (Resumo completo, clicar acesso eletrônico abaixo)<br>Abstract: The degradation of water resources, as the lentics environments, among them, the lakes, is a major concern now, because it can cause direct or indirect damages to health and to the survival of the exposed organisms. One factor that can contribute to change the water quality of lentics environments is the dumping of effluents, mainly those of domestic origin, carriers of substances that come to be toxic to the aquatic environment. Through the cytogenetic tests, using the most diverse systems-test, it is possible monitoring the extent of pollution and assess the effects of substances on the natural environment. To that end, this work has taken a model of study, an urban artificial lake (Lago Azul, Rio Claro-SP) and aimed to evaluate the cytotoxic, genotoxic and mutagenic potentials of waters that environment, through tests of chromosome aberrations and micronuclei in meristematic cells of Allium cepa (onion) in two treatments: the continued and the period of recovery, in ultra pure water, and by the micronucleus and nuclear abnormalities test and of the comet assay, applied in erythrocytes of Oreochromis niloticus (tilapia). Seasonal collections of waters were held in the dry season (august/2006 and august/2007) and the rainy season (march/2007 and february/2008). Physical and chemical analyses were made for a collection of each season. From the data obtained, it can be infered that the waters of this lentic environment had cytotoxic, genotoxic and mutagenic potentials in two seasons of collections for the two systems-test employed. Analyses of metals detected high concentrations of Ag, Cd2+, Cu, Fe3+, whose values are higher than permitted by law, in both seasons. Although the cytotoxic, genotoxic and mutagenic potentials have been detected in two seasons, the dry season is that presented the highest risk... (Complete abstract click electronic access below)<br>Mestre
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Christofoletti, Cintya Aparecida [UNESP]. "Avaliação dos potenciais citotóxico, genotóxico e mutagênico das águas de um ambiente lêntico, por meio dos sistemas-teste de Allium cepa e Oreochromis niloticus." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/87679.

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Made available in DSpace on 2014-06-11T19:22:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-08-04Bitstream added on 2014-06-13T20:49:39Z : No. of bitstreams: 1 christofoletti_ca_me_rcla.pdf: 3763933 bytes, checksum: d9284f200972936e72e67bb3de745be4 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>A degradação dos recursos hídricos, como os ambientes lênticos, dentre eles, os lagos, é uma das maiores preocupações atualmente, visto que esta pode causar danos diretos ou indiretos à saúde e à sobrevivência dos organismos expostos. Um dos fatores que contribui para a alteração da qualidade das águas de ambientes lênticos é o despejo de efluentes, principalmente àqueles de origem doméstica, portadores de substâncias que chegam a ser tóxicas para o meio aquático. Por meio dos testes citogenéticos, utilizando os mais diversificados organismos-teste, é possível biomonitorar a extensão da poluição e avaliar os efeitos dessas substâncias presentes no ambiente natural. Com esse intuito, o presente trabalho tomou por modelo de estudo, um lago urbano artificial (Lago Azul, Rio Claro-SP) e objetivou avaliar o potencial citotóxico, genotóxico e mutagênico das águas desse ambiente, por meio dos testes de aberrações cromossômicas e micronúcleos, em células meristemáticas de Allium cepa (cebola), em dois tratamentos: o contínuo e o período de recuperação, em água ultra pura; e, pelo teste do micronúcleo associado às anormalidades nucleares e do ensaio do cometa, aplicados em eritrócitos de Oreochromis niloticus (tilápia). Coletas de águas sazonais foram realizadas na estação seca (agosto/2006 e agosto/2007) e na estação chuvosa (março/2007 e fevereiro/2008). Análises físico-químicas foram feitas para uma coleta de cada estação. A partir dos dados obtidos, pode-se inferir que as águas desse ambiente lêntico apresentam potencial citotóxico, genotóxico e mutagênico, nas duas estações de coletas, para os dois organismos-teste empregados. As análises de metais revelaram concentrações acima do permitido pela legislação de Ag, Cd2+, Cu e Fe3+, em ambas as estações. Embora os...<br>The degradation of water resources, as the lentics environments, among them, the lakes, is a major concern now, because it can cause direct or indirect damages to health and to the survival of the exposed organisms. One factor that can contribute to change the water quality of lentics environments is the dumping of effluents, mainly those of domestic origin, carriers of substances that come to be toxic to the aquatic environment. Through the cytogenetic tests, using the most diverse systems-test, it is possible monitoring the extent of pollution and assess the effects of substances on the natural environment. To that end, this work has taken a model of study, an urban artificial lake (Lago Azul, Rio Claro-SP) and aimed to evaluate the cytotoxic, genotoxic and mutagenic potentials of waters that environment, through tests of chromosome aberrations and micronuclei in meristematic cells of Allium cepa (onion) in two treatments: the continued and the period of recovery, in ultra pure water, and by the micronucleus and nuclear abnormalities test and of the comet assay, applied in erythrocytes of Oreochromis niloticus (tilapia). Seasonal collections of waters were held in the dry season (august/2006 and august/2007) and the rainy season (march/2007 and february/2008). Physical and chemical analyses were made for a collection of each season. From the data obtained, it can be infered that the waters of this lentic environment had cytotoxic, genotoxic and mutagenic potentials in two seasons of collections for the two systems-test employed. Analyses of metals detected high concentrations of Ag, Cd2+, Cu, Fe3+, whose values are higher than permitted by law, in both seasons. Although the cytotoxic, genotoxic and mutagenic potentials have been detected in two seasons, the dry season is that presented the highest risk... (Complete abstract click electronic access below)
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FIGUEIRÊDO, Adriana de Carvalho. "Avaliação e diagnóstico da qualidade da água do Açude de Apipucos, Recife-PE." Universidade Federal Rural de Pernambuco, 2008. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5550.

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Submitted by (lucia.rodrigues@ufrpe.br) on 2016-09-19T12:13:00Z No. of bitstreams: 1 Adriana de Carvalho Figueiredo.pdf: 3742546 bytes, checksum: a66487121db91a5bb05bdc8b51a3db2a (MD5)<br>Made available in DSpace on 2016-09-19T12:13:00Z (GMT). No. of bitstreams: 1 Adriana de Carvalho Figueiredo.pdf: 3742546 bytes, checksum: a66487121db91a5bb05bdc8b51a3db2a (MD5) Previous issue date: 2008-04-30<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>This study aimed to evaluate the environmental quality of the Apipucos dam in Recife-PE, through diagnosis of water quality using physical, chemical and microbiological parameters, as a function of the use and occupation of the soil. In this way, was made the water quality monitoring in three campaigns during the period between January 2007 and January 2008. In the first campaign were evaluated physical, chemical and microbiological parameters in bimensal periods on a schedule in three sampling points. During the second campaign the physical-chemical parameters were evaluated in the local, with weekly intervals in four sampling points. In the third campaign the physical-chemical evaluation was made at two depths related to water surface (30 and 60 cm), using 45 sampling points in order to identify areas with greater or lesser degree of impact. A bathymetric study was conducted to check the occurrence of silting in the dam. The observed results indicate that water quality shows high concentrations of organic pollution, with most critical points locatedin cell 2 of the dam. In respect to the presence of toxic substances tested, in general, the concentrations of metals were within the limits of CONAMA Resolution 375/05, except to the iron, copper and aluminum. For those impacts to the water quality of the Apipucos dam, can be considered the human activities, which have increased the process of environmental degradation of this resource. The bathymetric studies indicated that in the Apipucos dam not occurred significant silting or it was not remarkable. The lack of treatment of the domestic sewage and illegal use of land near the banks of the body of water are aggravating factors of their current conditions.<br>O presente trabalho teve como objetivo avaliar a qualidade ambiental do Açude de Apipucos em Recife-PE, por intermédio de diagnóstico da qualidade da água por meio de parâmetros físicos, químicos e microbiológicos, em função do uso e ocupação do solo. Para isso, foram realizados monitoramentos da qualidade da água em três campanhas durante o período compreendido entre janeiro de 2007 e 2008. Na primeira campanha foram avaliados parâmetros físico-químicos e microbiológicos em periodicidade bimensal em três pontos amostrais. A segunda correspondeu à avaliação “in loco” de parâmetros físico-químicos com periodicidade semanal em quatro pontos amostrais. Na terceira campanha efetuou-se avaliação físico-química em duas profundidades em relação à superfície da lâmina d’água (30 e 60 cm), em 45 pontos amostrais, com o intuito de identificar as áreas com maior ou menor grau de impacto. Um estudo batimétrico foi realizado procurando verificar a ocorrência de assoreamento no Açude. Os resultados observados indicam que a qualidade da água apresenta alta concentração de poluiçãoorgânica, com pontos mais críticos localizados na célula 2 do Açude. Quanto à presença de substâncias tóxicas analisadas, as concentrações dos metais, em geral, apresentaram-se dentro dos limites da Resolução CONAMA 375/05, exceto o ferro, cobre, e o alumínio. Em relação aos impactos acarretados à qualidade da água no Açude de Apipucos estão as atividades de origem antrópicas, as quais vêm aumentado o processo de degradação ambiental deste recurso. Os estudos batimétricos indicaram que o Açude de Apipucos não sofreu assoreamento significativo ou este não foi notório. A falta de tratamento do esgoto doméstico e o uso irregular do solo próximo às margens do corpo d’água são fatores agravantes das suas condições atuais.
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JR, MARCOS AURELIO PINTO MARZANO. "ROBOTIC SYSTEM FOR MONITORING WATER QUALITY IN LENTIC ENVIRONMENTS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36947@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Nas últimas décadas, a crescente conscientização ambiental levou ao reconhecimento da necessidade do uso responsável dos recursos hídricos. Para garantir isso, a boa gestão de reservatórios hídricos requer um monitoramento ambiental adequado, com medições confiáveis dos parâmetros de qualidade da água em vários pontos do reservatório, permitindo o controle da qualidade da água e seus impactos na fauna, flora e comunidades ribeirinhas dos reservatórios. O monitoramento das variáveis ambientais dos reservatórios é atualmente realizado por processo tradicional de coleta manual. Infelizmente, no Brasil, as iniciativas de produzir um sistema robótico aquático com tecnologia nacional e de baixo custo, quando comparado a equivalentes importados, são ainda raras e se restringem a algumas poucas instituições acadêmicas, não tendo sido localizado nenhum fabricante comercial deste tipo de veículo no país. Visando preencher esta lacuna, o presente trabalho teve como objetivo o desenvolvimento do protótipo de um sistema robótico aquático capaz de se locomover autonomamente em lagoas, lagos e reservatórios, coletando informações físico-químicas da água e armazenando estes dados na memória. Além disso, foi incluído no protótipo uma câmera de vídeo, sistema de iluminação e um sistema de controle remoto, objetivando o controle pela equipe em terra. Nos testes realizados em dias ensolarados e chuvosos, o robô apresentou boa dirigibilidade, estabilidade e manobrabilidade. O vaso de pressão do sistema robótico resistiu às pressões necessárias durante os testes, a eletrônica conseguiu atender as especificações de projeto e o software conseguiu estabelecer um controle de navegação, cumprindo o trajeto de uma rota estabelecida.<br>In recent decades, the growing environmental awareness has led to the recognition of the need for responsible use of water resources. To ensure this, the good management of water reservoirs requires adequate environmental monitoring, with reliable measurements of water quality parameters in various parts of the reservoir, allowing the control of water quality and its impacts on fauna, flora and riverine communities of the reservoirs. Monitoring environmental variables of the reservoirs is currently performed by traditional process of manual collection. Unfortunately, in Brazil, initiatives to produce a water robotic system with national and low cost technology, compared to imported equivalents, are still rare and restricted to a few academic institutions, and no commercial manufacturer of this type of vehicle was found in the country. Aiming to fill this gap, the main objective of this study was to develop a prototype of a water robotic system capable of autonomously navigate in ponds, lakes and reservoirs, collecting physicochemical information of water and storing this data in memory. Moreover, a video camera, illumination and a remote control system were included in the prototype, allowing the team on the ground to control the prototype. In tests conducted in sunny and rainy days, the robot presented good handling, stability and maneuverability. The robotic system pressure vessel resisted pressures required during testing, the electronics met the design specifications and the software was able to establish a navigation control, fulfilling the path of an established route.
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Velludo, Marcela Roquetti. "Ecologia trófica da comunidade de peixes do reservatório de Cachoeira Dourada, rio Paranaíba, Bacia do Alto Rio Paraná, Brasil." Universidade Federal de São Carlos, 2011. https://repositorio.ufscar.br/handle/ufscar/1803.

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Made available in DSpace on 2016-06-02T19:29:57Z (GMT). No. of bitstreams: 1 5321.pdf: 1686054 bytes, checksum: 8981c0335246dc3aa2d6f05304ecfbbc (MD5) Previous issue date: 2011-06-28<br>Universidade Federal de Sao Carlos<br>The knowledge of the fish s diet and species abundance of a particular community allows us to identify the community s different trophic categories, as well as to infer about its structure. This knowledge may also permit to evaluate the degree of importance of trophic levels and to understand the interrelationships among the components of that community. In order to generate data for a better understanding of the relationships between the ichthyofauna components and other aquatic organisms in the community, this study aimed to characterize the trophic structure of the fish community of the Cachoeira Dourada reservoir - MG/GO, Upper Parana River basin (18° 30' 11.47"S, 49° 29' 18.78"W). The fish sampling occurred monthly from February 2007 to January 2008 and the fishes were captured using gill nets of 2 to 6.5 inches between adjacent knots placed at three sampling points of the reservoir. The biometric analyses was performed by the gauging of the total and standard length and total weight of the collected specimens. The fish stomachs were removed, weighed and fixed in 4% formaldehyde for further analysis in stereomicroscope. The data obtained during the stomach contents analysis was quantified though the Alimentary Index of Kawakami and Vazzoler, which combines the frequency of occurrence and volume of the alimentary items. The description of the species diet allowed the identification of six feeding guilds: (1) Iliophagous, (2) Carnivores-insectivores, (3) Carnivores-piscivores, (4) herbivores, (5) Omnivores, (6) Invertivores. The dietary overlap trophic web built showed interspecific interactions with 20% connectance. Eleven sub-groups or clicks were observed. The iliophagous sub-group showed no interactions with other species guilds. The bipartite network showed the generality of the food items intake of Pimelodus maculatus, the most abundant species in gill nets catches. The prey relative biomass appeared to be larger than that of the predators, this factor may be responsible for maintaining the large amount of piscivorous species found in the community. The ecosystem analyses describe and evaluate the functioning of biological systems considering productivity, interaction between communities and their functional processes. The knowledge of trophic ecology and key species connectivity indicates the paths through which the greater part of the system energy flows. This can help to identify regulatory elements of the community s structure and functioning, since it summarizes the dynamics of environmental energy transfer.<br>A partir do conhecimento da dieta dos peixes de uma comunidade e da abundância específica, podem ser identificadas as diferentes categorias tróficas, inferir acerca da estrutura, avaliar o grau de importância dos distintos níveis tróficos e entender as interrelações entre os componentes da referida comunidade. Com a finalidade de gerar subsídios para um melhor entendimento das relações entre os componentes da ictiofauna e os demais organismos da comunidade aquática, este estudo visou caracterizar a estrutura trófica da comunidade de peixes do reservatório de Cachoeira Dourada MG/GO, na bacia do Alto Rio Paraná (18°30'11.47"S, 49°29'18.78"O). Foram realizadas coletas mensais de fevereiro de 2007 a janeiro de 2008, utilizando redes de espera de 2 a 6,5 centímetros entre nós adjacentes em três pontos do reservatório. Após realizada a biometria, anotando-se o comprimento total e padrão e o peso total dos indivíduos coletados, os estômagos eram retirados pesados e fixados em formol 4% para posterior análise em esteriomicroscópio. As informações obtidas através da análise de conteúdo estomacal eram quantificadas através do índice alimentar de Kawakami e Vazzoler, combinando a freqüência de ocorrência e o volume dos itens. A descrição da dieta das espécies permitiu identificar seis guildas tróficas: (1) Iliófagos; (2) Carnívoros-insetívoros; (3) Carnívoros-piscívoros; (4) Herbívoros; (5) Onívoros; (6) Invertívoros. A teia trófica construída com base na sobreposição alimentar apresentou interações interespecíficas com conectância de 20%. São observados 11 sub-grupos ou cliques, sendo que o sub-grupo formado pelos iliófagos não apresentou interações com as espécies de outras guildas. A rede bipartida mostrou a generalidade na ingestão de itens alimentares por Pimelodus maculatus, espécie mais abundante nas capturas com as redes. A biomassa relativa de presas se apresentou maior que a dos predadores, fator que pode ser responsável pela manutenção da grande quantidade de piscívoros encontrados. As análises ecossistêmicas descrevem e avaliam o funcionamento de sistemas biológicos considerando a produtividade, interação entre as comunidades e seus processos funcionais. O conhecimento da ecologia trófica e da conectividade das espécies-chave indicam os caminhos por onde flui a maior parte da energia do sistema. Isso pode auxiliar na identificação de elementos reguladores da estrutura e funcionamento das comunidades, já que sumariza a dinâmica da transferência de energia no ambiente.
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Ruhl, Nathan A. "The Lotic-Lentic Gradient in Reservoirs and Estuaries." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1339177201.

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Adhikari, Eliina. "Genetic and Environmental Variation on Mineral Nutrient Concentration in Pea and Lentil Seed." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27255.

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Current food supply is expected to be insufficient to support the growing population both in quantity and nutritional quality; therefore, the need to breed for higher yield and greater nutritional quality is urgent. Twenty-five dry pea genotypes, 25 Turkish red lentil and 23 green lentil genotypes were tested across different locations of North Dakota to quantify the nutrient concentration and to characterize the genotype and the environmental factors affecting nutrient concentration. Significant genotypic, environmental and genotype-by-environment interaction was present for Ca, Cu, Fe, K, Mg, Mn, P and Zn analyzed in dry pea and lentil. A range of correlations among and/or between mineral elements and seed yield parameters was observed. This suggests that breeding for quantitative trait like mineral elements is possible through conventional breeding however; multi-location testing is very crucial for analyzing the genetic and environmental effect on mineral concentration in the seeds.
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Sandy, Alexis Emily. "Environmental and Digital Data Analysis of the National Wetlands Inventory (NWI) Landscape Position Classification System." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/33572.

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The National Wetlands Inventory (NWI) is the definitive source for wetland resources in the United States. The NWI production unit in Hadley, MA has begun to upgrade their digital map database, integrating descriptors for assessment of wetland functions. Updating is conducted manually and some automation is needed to increase production and efficiency. This study assigned landscape position descriptor codes to NWI wetland polygons and correlated polygon environmental properties with public domain terrain, soils, hydrology, and vegetation data within the Coastal Plain of Virginia. Environmental properties were applied to a non-metric multidimensional scaling technique to identify similarities within individual landscape positions based on wetland plant indicators, primary and secondary hydrology indicators, and field indicators of hydric soils. Individual NWI landscape position classes were linked to field-validated environmental properties. Measures provided by this analysis indicated that wetland plant occurrence and wetland plant status obtained a stress value of 0.136 (Kruskalâ s stress measure = poor), which is a poor indicator when determining correlation among wetland environmental properties. This is due principally to the highly-variable plant distribution and wetland plant status found among the field-validated sites. Primary and secondary hydrology indicators obtained a stress rating of 0.097 (Kruskalâ s stress measure = good) for correlation. The hydrology indicators measured in this analysis had a high level of correlation with all NWI landscape position classes due the common occurrence of at least one primary hydrology indicator in all field validated wetlands. The secondary indicators had an increased accuracy in landscape position discrimination over the primary indicators because they were less ubiquitous. Hydric soil characteristics listed in the 1987 Manual and NTCHS field indicators of hydric soils proved to be a relatively poor indicator, based on Kruskalâ s stress measure of 0.117, for contrasting landscape position classes because the same values occurred across all classes. The six NWI fieldâ validated landscape position classes used in this study were then further applied in a public domain digital data analysis. Mean pixel attribute values extracted from the 180 field-validated wetlands were analyzed using cluster analysis. The percent hydric soil component displayed the greatest variance when compared to elevation and slope curvature, streamflow and waterbody, Cowardin classification, and wetland vegetation type. Limitations of the soil survey data included: variable date of acquisition, small scale compared to wetland size, and variable quality. Flow had limitations related to its linear attributes, therefore is often found insignificant when evaluating pixel values that are mean of selected pixels across of wetland landscape position polygons. NLCD data limitations included poor quality resolution (large pixel size) and variable classification of cover types. The three sources of information that would improve wetland mapping and modeling the subtle changes in elevation and slope curvature that characterize wetland landscapes are: recent high resolution leaf-off aerial photography, high-quality soil survey data, and high-resolution elevation data. Due to the data limitations and the choice of variables used in this study, development of models and rules that clearly separate the six different landscape positions was not possible, and thus automation of coding could not be attempted.<br>Master of Science
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Chaveiro, Vitor Bernardino Gonçalves. "Tratamento e recirculação de água por osmose inversa em processos de fabricação de lentes oftálmicas. Beneficios ambientais e financeiros." Master's thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5274.

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Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia<br>Due to increased environmental awareness and water costs, industries have increase the need to optimize the use of water by selecting production processes more efficient, with lower water consumption or through a treatment and recirculation of water. This study comes from the Essilor Portugal need to reduce the environmental impact and costs of a water consumption of the main processes for producing ophthalmic lenses, but also the need to improve the quality of the water process due the quality requirements. One of the processes of water treating with an increased use in industrial sector, particularly in processes that require water with very stringent quality characteristics, is reverse osmosis. This process, thanks to its numerous advantages, including the high capacity and effectiveness of treatment, occupying small areas, unnecessary regeneration and energy efficiency has proven to be an economically viable technology. The objectives of this study are based on the evaluation of the environmental and financial benefits due the implementation of water treatment and recirculation by reverse osmosis, in processes of manufacturing of ophthalmic lenses, and also the analysis and optimization of operating conditions. With this system, of water treatment and recirculation, there was a significant improvement in the quality of the water for cleaning of ophthalmic lenses in the coating process (the most demanding in terms of water quality) which serves to protect the surfaces of the lenses from knocks and scratches, giving them hardness and abrasion resistance. The water needs, to clean lenses in the coating process is crucial, to ensure the pre-cleaning of the lens surface before application of the coating and quality of the product, and after the treatment system implementation there were some improvements of the coating process quality service, in terms of non quality costs and process yield. From the analysis of the environmental benefits of the project, we can verifier that there is a reduction of consumption of resources and materials, which translate into a significant positive impact, combined with reduced consumption of water and energy. The present study showed that reverse osmosis is an technology treatment, economically and environmentally feasible for the specific conditions of the project in question, allowing rapid coverage of the initial investment, managing to generate a rate return much higher than the capital cost.
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Silva, Marcelo Jacomini Moreira da. "Uso da filtração lenta e tecnicas de desinfecção para adequação de esgotos sanitarios aos padrões de lançamento e reuso." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257796.

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Orientador: Jose Euclides Stipp Paterniani<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo<br>Made available in DSpace on 2018-08-09T17:15:08Z (GMT). No. of bitstreams: 1 Silva_MarceloJacominiMoreirada_D.pdf: 4911036 bytes, checksum: 621ab01f5e1f061dd69cb5599e64882b (MD5) Previous issue date: 2006<br>Resumo: presente trabalho estudou a melhoria da qualidade de esgoto sanitário tratado com a utilização de pré-filtração em pedregulho, filtração lenta com e sem carvão ativado, cloração, radiação ultravioleta (UV) e radiação solar em fluxo contínuo (SODIS). A unidade piloto constituía um pré-filtro de pedregulho em camadas com fluxo ascendente cujo efluente é destinado a dois filtros lentos com meio filtrante composto de areia com 40cm de espessura (num dos filtros foi inserida, uma camada de 10cm de espessura de carvão vegetal ativado granulado) e 3 camadas de mantas sintéticas não tecidas instaladas no topo da camada de areia seguindo de desinfecção foi realizada em três sistemas paralelos: cloração com hipoclorito de sódio; radiação UV com reator do tipo tubular e lâmpada bactericida submersa; radiação SODIS em fluxo contínuo. O pré-filtro de pedregulho apresentou eficiência de remoção de sólidos em suspensão, atenuou ainda, os picos de concentração de sólidos em suspensão e turbidez no efluente, garantido ao afluente dos filtros lentos menor variabilidade das suas características qualitativas. Os filtros lentos, com e sem carvão granulado, tiveram comportamentos semelhantes com relação a evolução da perda de carga e os resultados mostraram que a utilização do carvão ativado proporciona melhor remoção das impurezas, avaliadas pelos parâmetros adotados. A desinfecção com radiação UV atingiu eficiência próxima a cloração sendo um processo alternativo com menor risco de formação de produtos carcinogênicos, como os trialometanos. A radiação solar (SODIS) não atingiu valores adequados, uma vez que a temperatura no efluente não chegou à 50ºC, e apresentou problemas relativos à proliferação de algas. Concluiu-se que a utilização de tais tecnologias, além de serem de custo baixo e de simples operação e manutenção, conferem ao efluente melhores características físicas e biológicas, de tal modo que se pode adequar o efluente para o reúso em atividades de irrigação e o lançamento em corpos d'água<br>Abstract: The current work demonstrates the viability of domestic wastewater quality improvement by the slow filtration preceded roughing filtration and disinfection by ultraviolet and solar radiation. The pilot plant is constituided of two slow sand filters with 40 cm sand layer thickness and 3 layers of synthetic non woven fabrics installed in the top of the sand layer. Besides, in one of the filters there was inserted 10 cm thickness of granulated vegetal coal. The roughing filter presented efficiency of 22.5% in suspended solids removal, and 22.8% in turbidity removal. The slow filter with granulated coal s, had similar behaviors with the slow sand filter with only sand, regard to evolution of the head loss, so the initial average value was 6.2cm and 7.1cm, respectively. The average of the filtration run was of 40days. The results showed that the use of granulated coal better provides removal of the water impurities. The disinfections systems are installed after the filters. The efficiencies of removal in the slow filter with sand and blanket and of the slow filter I only contend sand coal and weaveeed blanket had not been, respectively: 28% and 36% for solids in suspension, 33% and 43% for turbidez, 26% and 39% for apparent color, 57% and 74% for total coliformes and 70% and 73% for E.coli. The chlorination has done with pump whose applies 2mg_-1 NaOHCl. The UV reactor has tubular layout. The SODIS reactor has continuous flow, TDH = 4hours. The use of such technologies was concluded that, beyond being of cost low e of simple operation and maintenance, confers to effluent the better physical and biological characteristics, being possible still to increase this efficiency with the use of granulated coal. The use of any insumo chemical is still standed out not during the treatment of the effluent one, becoming the applicable process in communities whose infrastructure is precarious. The evaluated system if still gives to adjust the water for reúso in activities that do not demand potable quality<br>Doutorado<br>Saneamento e Ambiente<br>Doutor em Engenharia Civil
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Books on the topic "Lentic environment"

1

The living planet: Lenten reflections on our home environment. United Church Publishing House, 1991.

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Prichard, Don. A User guide to assessing proper functioning condition and the supporting science for lentic areas. U.S. Dept. of the Interior, Bureau of Land Management, National Applied Resource Sciences Center, 2003.

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Favaro, Alice. Después de la caída del ‘ángel’. Edizioni Ca' Foscari, 2020. http://dx.doi.org/10.30687/978-88-6969-416-5.

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Ángel Bonomini was born in Buenos Aires in 1929 where he lived until his death at the age of sixty-four in 1994. He worked for various newspapers and magazines as an art critic and translator, but always maintaining his literary activity. He inherited the tradition of the Argentine fantastic and was a prolific writer: his production includes essays, poems and fantastic tales.Although he lived in a period of great cultural splendor and his literary talent was recognised by authors such as Borges and Bioy Casares, he fell into an unexplained oblivion, disappearing quite early from the contemporary intellectual environment. His first poems, which date back to the 1950s, were published in Sur magazine and some of his tales were included in well-known anthologies of fantastic literature.Among his collections of poems there are: Primera enunciación (1947), Argumento del enamorado. Baladas con Ángel (1952) written with María Elena Walsh, Torres para el silencio (1982) and Poética (1994). In 1972 he achieved great success with the publication of his first collection of fantastic tales, Los novicios de Lerna, followed by the publication of other books: Libro de los casos (1975), Los lentos elefantes de Milán (1978), Cuentos de amor (1982), Historias secretas (1985) and Más allá del puente (1996), posthumously published.A particular use of the fantastic characterises his work and distinguishes him from his contemporary authors. In his tales there is a continuous contrast between metaphysics and existentialism; in this way, he makes a deep investigation of the reality and, at the same time, he tries to go beyond it.This volume aims to analyse some emblematic tales by Bonomini in which it is possible to find the main topoi of Argentine fantastic and to understand why the author’s literary work is worth studying.
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The Protection of beans, peas and lentils, 1979-April 1990: Citations from AGRICOLA concerning diseases and other environmental considerations. U.S. Dept. of Agriculture, National Agricultural Library, 1990.

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Jenkins, Thomas E. The Reception of Hesiod in the Twentieth and Twenty-first Centuries. Edited by Alexander C. Loney and Stephen Scully. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780190209032.013.53.

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This chapter traces the reception of the Works and Days and Theogony in various media throughout the twentieth and twenty-first centuries, including film, television, video games, novels, essays, illustrations, and children’s literature. It argues that the Theogony’s greater emphasis on extended narrative episodes—particularly the violent Titanomachy—has spawned a comparatively greater number of receptions, while the Works and Day’s didactic tone and structure have lent themselves more readily to adaptations that stress the environment and/or management. Hesiod’s representation of women—both mortal and immortal—has engendered some of the most strongly ideological and passionate receptions, especially those concerning Athena, Gaia, and Pandora. The chapter concludes with a glance at the surprising reception of Hesiod in today’s newest media, including Twitter hashtags.
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Johansen, Bruce, and Adebowale Akande, eds. Nationalism: Past as Prologue. Nova Science Publishers, Inc., 2021. http://dx.doi.org/10.52305/aief3847.

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Nationalism: Past as Prologue began as a single volume being compiled by Ad Akande, a scholar from South Africa, who proposed it to me as co-author about two years ago. The original idea was to examine how the damaging roots of nationalism have been corroding political systems around the world, and creating dangerous obstacles for necessary international cooperation. Since I (Bruce E. Johansen) has written profusely about climate change (global warming, a.k.a. infrared forcing), I suggested a concerted effort in that direction. This is a worldwide existential threat that affects every living thing on Earth. It often compounds upon itself, so delays in reducing emissions of fossil fuels are shortening the amount of time remaining to eliminate the use of fossil fuels to preserve a livable planet. Nationalism often impedes solutions to this problem (among many others), as nations place their singular needs above the common good. Our initial proposal got around, and abstracts on many subjects arrived. Within a few weeks, we had enough good material for a 100,000-word book. The book then fattened to two moderate volumes and then to four two very hefty tomes. We tried several different titles as good submissions swelled. We also discovered that our best contributors were experts in their fields, which ranged the world. We settled on three stand-alone books:” 1/ nationalism and racial justice. Our first volume grew as the growth of Black Lives Matter following the brutal killing of George Floyd ignited protests over police brutality and other issues during 2020, following the police assassination of Floyd in Minneapolis. It is estimated that more people took part in protests of police brutality during the summer of 2020 than any other series of marches in United States history. This includes upheavals during the 1960s over racial issues and against the war in Southeast Asia (notably Vietnam). We choose a volume on racism because it is one of nationalism’s main motive forces. This volume provides a worldwide array of work on nationalism’s growth in various countries, usually by authors residing in them, or in the United States with ethnic ties to the nation being examined, often recent immigrants to the United States from them. Our roster of contributors comprises a small United Nations of insightful, well-written research and commentary from Indonesia, New Zealand, Australia, China, India, South Africa, France, Portugal, Estonia, Hungary, Russia, Poland, Kazakhstan, Georgia, and the United States. Volume 2 (this one) describes and analyzes nationalism, by country, around the world, except for the United States; and 3/material directly related to President Donald Trump, and the United States. The first volume is under consideration at the Texas A &amp; M University Press. The other two are under contract to Nova Science Publishers (which includes social sciences). These three volumes may be used individually or as a set. Environmental material is taken up in appropriate places in each of the three books. * * * * * What became the United States of America has been strongly nationalist since the English of present-day Massachusetts and Jamestown first hit North America’s eastern shores. The country propelled itself across North America with the self-serving ideology of “manifest destiny” for four centuries before Donald Trump came along. Anyone who believes that a Trumpian affection for deportation of “illegals” is a new thing ought to take a look at immigration and deportation statistics in Adam Goodman’s The Deportation Machine: America’s Long History of Deporting Immigrants (Princeton University Press, 2020). Between 1920 and 2018, the United States deported 56.3 million people, compared with 51.7 million who were granted legal immigration status during the same dates. Nearly nine of ten deportees were Mexican (Nolan, 2020, 83). This kind of nationalism, has become an assassin of democracy as well as an impediment to solving global problems. Paul Krugman wrote in the New York Times (2019:A-25): that “In their 2018 book, How Democracies Die, the political scientists Steven Levitsky and Daniel Ziblatt documented how this process has played out in many countries, from Vladimir Putin’s Russia, to Recep Erdogan’s Turkey, to Viktor Orban’s Hungary. Add to these India’s Narendra Modi, China’s Xi Jinping, and the United States’ Donald Trump, among others. Bit by bit, the guardrails of democracy have been torn down, as institutions meant to serve the public became tools of ruling parties and self-serving ideologies, weaponized to punish and intimidate opposition parties’ opponents. On paper, these countries are still democracies; in practice, they have become one-party regimes….And it’s happening here [the United States] as we speak. If you are not worried about the future of American democracy, you aren’t paying attention” (Krugmam, 2019, A-25). We are reminded continuously that the late Carl Sagan, one of our most insightful scientific public intellectuals, had an interesting theory about highly developed civilizations. Given the number of stars and planets that must exist in the vast reaches of the universe, he said, there must be other highly developed and organized forms of life. Distance may keep us from making physical contact, but Sagan said that another reason we may never be on speaking terms with another intelligent race is (judging from our own example) could be their penchant for destroying themselves in relatively short order after reaching technological complexity. This book’s chapters, introduction, and conclusion examine the worldwide rise of partisan nationalism and the damage it has wrought on the worldwide pursuit of solutions for issues requiring worldwide scope, such scientific co-operation public health and others, mixing analysis of both. We use both historical description and analysis. This analysis concludes with a description of why we must avoid the isolating nature of nationalism that isolates people and encourages separation if we are to deal with issues of world-wide concern, and to maintain a sustainable, survivable Earth, placing the dominant political movement of our time against the Earth’s existential crises. Our contributors, all experts in their fields, each have assumed responsibility for a country, or two if they are related. This work entwines themes of worldwide concern with the political growth of nationalism because leaders with such a worldview are disinclined to co-operate internationally at a time when nations must find ways to solve common problems, such as the climate crisis. Inability to cooperate at this stage may doom everyone, eventually, to an overheated, stormy future plagued by droughts and deluges portending shortages of food and other essential commodities, meanwhile destroying large coastal urban areas because of rising sea levels. Future historians may look back at our time and wonder why as well as how our world succumbed to isolating nationalism at a time when time was so short for cooperative intervention which is crucial for survival of a sustainable earth. Pride in language and culture is salubrious to individuals’ sense of history and identity. Excess nationalism that prevents international co-operation on harmful worldwide maladies is quite another. As Pope Francis has pointed out: For all of our connectivity due to expansion of social media, ability to communicate can breed contempt as well as mutual trust. “For all our hyper-connectivity,” said Francis, “We witnessed a fragmentation that made it more difficult to resolve problems that affect us all” (Horowitz, 2020, A-12). The pope’s encyclical, titled “Brothers All,” also said: “The forces of myopic, extremist, resentful, and aggressive nationalism are on the rise.” The pope’s document also advocates support for migrants, as well as resistance to nationalist and tribal populism. Francis broadened his critique to the role of market capitalism, as well as nationalism has failed the peoples of the world when they need co-operation and solidarity in the face of the world-wide corona virus pandemic. Humankind needs to unite into “a new sense of the human family [Fratelli Tutti, “Brothers All”], that rejects war at all costs” (Pope, 2020, 6-A). Our journey takes us first to Russia, with the able eye and honed expertise of Richard D. Anderson, Jr. who teaches as UCLA and publishes on the subject of his chapter: “Putin, Russian identity, and Russia’s conduct at home and abroad.” Readers should find Dr. Anderson’s analysis fascinating because Vladimir Putin, the singular leader of Russian foreign and domestic policy these days (and perhaps for the rest of his life, given how malleable Russia’s Constitution has become) may be a short man physically, but has high ambitions. One of these involves restoring the old Russian (and Soviet) empire, which would involve re-subjugating a number of nations that broke off as the old order dissolved about 30 years ago. President (shall we say czar?) Putin also has international ambitions, notably by destabilizing the United States, where election meddling has become a specialty. The sight of Putin and U.S. president Donald Trump, two very rich men (Putin $70-$200 billion; Trump $2.5 billion), nuzzling in friendship would probably set Thomas Jefferson and Vladimir Lenin spinning in their graves. The road of history can take some unanticipated twists and turns. Consider Poland, from which we have an expert native analysis in chapter 2, Bartosz Hlebowicz, who is a Polish anthropologist and journalist. His piece is titled “Lawless and Unjust: How to Quickly Make Your Own Country a Puppet State Run by a Group of Hoodlums – the Hopeless Case of Poland (2015–2020).” When I visited Poland to teach and lecture twice between 2006 and 2008, most people seemed to be walking on air induced by freedom to conduct their own affairs to an unusual degree for a state usually squeezed between nationalists in Germany and Russia. What did the Poles then do in a couple of decades? Read Hlebowicz’ chapter and decide. It certainly isn’t soft-bellied liberalism. In Chapter 3, with Bruce E. Johansen, we visit China’s western provinces, the lands of Tibet as well as the Uighurs and other Muslims in the Xinjiang region, who would most assuredly resent being characterized as being possessed by the Chinese of the Han to the east. As a student of Native American history, I had never before thought of the Tibetans and Uighurs as Native peoples struggling against the Independence-minded peoples of a land that is called an adjunct of China on most of our maps. The random act of sitting next to a young woman on an Air India flight out of Hyderabad, bound for New Delhi taught me that the Tibetans had something to share with the Lakota, the Iroquois, and hundreds of other Native American states and nations in North America. Active resistance to Chinese rule lasted into the mid-nineteenth century, and continues today in a subversive manner, even in song, as I learned in 2018 when I acted as a foreign adjudicator on a Ph.D. dissertation by a Tibetan student at the University of Madras (in what is now in a city called Chennai), in southwestern India on resistance in song during Tibet’s recent history. Tibet is one of very few places on Earth where a young dissident can get shot to death for singing a song that troubles China’s Quest for Lebensraum. The situation in Xinjiang region, where close to a million Muslims have been interned in “reeducation” camps surrounded with brick walls and barbed wire. They sing, too. Come with us and hear the music. Back to Europe now, in Chapter 4, to Portugal and Spain, we find a break in the general pattern of nationalism. Portugal has been more progressive governmentally than most. Spain varies from a liberal majority to military coups, a pattern which has been exported to Latin America. A situation such as this can make use of the term “populism” problematic, because general usage in our time usually ties the word into a right-wing connotative straightjacket. “Populism” can be used to describe progressive (left-wing) insurgencies as well. José Pinto, who is native to Portugal and also researches and writes in Spanish as well as English, in “Populism in Portugal and Spain: a Real Neighbourhood?” provides insight into these historical paradoxes. Hungary shares some historical inclinations with Poland (above). Both emerged from Soviet dominance in an air of developing freedom and multicultural diversity after the Berlin Wall fell and the Soviet Union collapsed. Then, gradually at first, right wing-forces began to tighten up, stripping structures supporting popular freedom, from the courts, mass media, and other institutions. In Chapter 5, Bernard Tamas, in “From Youth Movement to Right-Liberal Wing Authoritarianism: The Rise of Fidesz and the Decline of Hungarian Democracy” puts the renewed growth of political and social repression into a context of worldwide nationalism. Tamas, an associate professor of political science at Valdosta State University, has been a postdoctoral fellow at Harvard University and a Fulbright scholar at the Central European University in Budapest, Hungary. His books include From Dissident to Party Politics: The Struggle for Democracy in Post-Communist Hungary (2007). Bear in mind that not everyone shares Orbán’s vision of what will make this nation great, again. On graffiti-covered walls in Budapest, Runes (traditional Hungarian script) has been found that read “Orbán is a motherfucker” (Mikanowski, 2019, 58). Also in Europe, in Chapter 6, Professor Ronan Le Coadic, of the University of Rennes, Rennes, France, in “Is There a Revival of French Nationalism?” Stating this title in the form of a question is quite appropriate because France’s nationalistic shift has built and ebbed several times during the last few decades. For a time after 2000, it came close to assuming the role of a substantial minority, only to ebb after that. In 2017, the candidate of the National Front reached the second round of the French presidential election. This was the second time this nationalist party reached the second round of the presidential election in the history of the Fifth Republic. In 2002, however, Jean-Marie Le Pen had only obtained 17.79% of the votes, while fifteen years later his daughter, Marine Le Pen, almost doubled her father's record, reaching 33.90% of the votes cast. Moreover, in the 2019 European elections, re-named Rassemblement National obtained the largest number of votes of all French political formations and can therefore boast of being "the leading party in France.” The brutality of oppressive nationalism may be expressed in personal relationships, such as child abuse. While Indonesia and Aotearoa [the Maoris’ name for New Zealand] hold very different ranks in the United Nations Human Development Programme assessments, where Indonesia is classified as a medium development country and Aotearoa New Zealand as a very high development country. In Chapter 7, “Domestic Violence Against Women in Indonesia and Aotearoa New Zealand: Making Sense of Differences and Similarities” co-authors, in Chapter 8, Mandy Morgan and Dr. Elli N. Hayati, from New Zealand and Indonesia respectively, found that despite their socio-economic differences, one in three women in each country experience physical or sexual intimate partner violence over their lifetime. In this chapter ther authors aim to deepen understandings of domestic violence through discussion of the socio-economic and demographic characteristics of theit countries to address domestic violence alongside studies of women’s attitudes to gender norms and experiences of intimate partner violence. One of the most surprising and upsetting scholarly journeys that a North American student may take involves Adolf Hitler’s comments on oppression of American Indians and Blacks as he imagined the construction of the Nazi state, a genesis of nationalism that is all but unknown in the United States of America, traced in this volume (Chapter 8) by co-editor Johansen. Beginning in Mein Kampf, during the 1920s, Hitler explicitly used the westward expansion of the United States across North America as a model and justification for Nazi conquest and anticipated colonization by Germans of what the Nazis called the “wild East” – the Slavic nations of Poland, the Baltic states, Ukraine, and Russia, most of which were under control of the Soviet Union. The Volga River (in Russia) was styled by Hitler as the Germans’ Mississippi, and covered wagons were readied for the German “manifest destiny” of imprisoning, eradicating, and replacing peoples the Nazis deemed inferior, all with direct references to events in North America during the previous century. At the same time, with no sense of contradiction, the Nazis partook of a long-standing German romanticism of Native Americans. One of Goebbels’ less propitious schemes was to confer honorary Aryan status on Native American tribes, in the hope that they would rise up against their oppressors. U.S. racial attitudes were “evidence [to the Nazis] that America was evolving in the right direction, despite its specious rhetoric about equality.” Ming Xie, originally from Beijing, in the People’s Republic of China, in Chapter 9, “News Coverage and Public Perceptions of the Social Credit System in China,” writes that The State Council of China in 2014 announced “that a nationwide social credit system would be established” in China. “Under this system, individuals, private companies, social organizations, and governmental agencies are assigned a score which will be calculated based on their trustworthiness and daily actions such as transaction history, professional conduct, obedience to law, corruption, tax evasion, and academic plagiarism.” The “nationalism” in this case is that of the state over the individual. China has 1.4 billion people; this system takes their measure for the purpose of state control. Once fully operational, control will be more subtle. People who are subject to it, through modern technology (most often smart phones) will prompt many people to self-censor. Orwell, modernized, might write: “Your smart phone is watching you.” Ming Xie holds two Ph.Ds, one in Public Administration from University of Nebraska at Omaha and another in Cultural Anthropology from the Chinese Academy of Social Sciences, Beijing, where she also worked for more than 10 years at a national think tank in the same institution. While there she summarized news from non-Chinese sources for senior members of the Chinese Communist Party. Ming is presently an assistant professor at the Department of Political Science and Criminal Justice, West Texas A&amp;M University. In Chapter 10, analyzing native peoples and nationhood, Barbara Alice Mann, Professor of Honours at the University of Toledo, in “Divide, et Impera: The Self-Genocide Game” details ways in which European-American invaders deprive the conquered of their sense of nationhood as part of a subjugation system that amounts to genocide, rubbing out their languages and cultures -- and ultimately forcing the native peoples to assimilate on their own, for survival in a culture that is foreign to them. Mann is one of Native American Studies’ most acute critics of conquests’ contradictions, and an author who retrieves Native history with a powerful sense of voice and purpose, having authored roughly a dozen books and numerous book chapters, among many other works, who has traveled around the world lecturing and publishing on many subjects. Nalanda Roy and S. Mae Pedron in Chapter 11, “Understanding the Face of Humanity: The Rohingya Genocide.” describe one of the largest forced migrations in the history of the human race, the removal of 700,000 to 800,000 Muslims from Buddhist Myanmar to Bangladesh, which itself is already one of the most crowded and impoverished nations on Earth. With about 150 million people packed into an area the size of Nebraska and Iowa (population less than a tenth that of Bangladesh, a country that is losing land steadily to rising sea levels and erosion of the Ganges river delta. The Rohingyas’ refugee camp has been squeezed onto a gigantic, eroding, muddy slope that contains nearly no vegetation. However, Bangladesh is majority Muslim, so while the Rohingya may starve, they won’t be shot to death by marauding armies. Both authors of this exquisite (and excruciating) account teach at Georgia Southern University in Savannah, Georgia, Roy as an associate professor of International Studies and Asian politics, and Pedron as a graduate student; Roy originally hails from very eastern India, close to both Myanmar and Bangladesh, so he has special insight into the context of one of the most brutal genocides of our time, or any other. This is our case describing the problems that nationalism has and will pose for the sustainability of the Earth as our little blue-and-green orb becomes more crowded over time. The old ways, in which national arguments often end in devastating wars, are obsolete, given that the Earth and all the people, plants, and other animals that it sustains are faced with the existential threat of a climate crisis that within two centuries, more or less, will flood large parts of coastal cities, and endanger many species of plants and animals. To survive, we must listen to the Earth, and observe her travails, because they are increasingly our own.
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Book chapters on the topic "Lentic environment"

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Sekar, R., V. P. Venugopalan, K. Nandakumar, K. V. K. Nair, and V. N. R. Rao. "Early stages of biofilm succession in a lentic freshwater environment." In Asian Pacific Phycology in the 21st Century: Prospects and Challenges. Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-007-0944-7_13.

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Ghanem, Michel Edmond, Hélène Marrou, Julie Guiguitant, and Fatima ez-zahra Kibbou. "Lentil." In Water-Conservation Traits to Increase Crop Yields in Water-deficit Environments. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56321-3_7.

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Purandara, B. K., B. S. Jamadar, T. Chandramohan, M. K. Jose, and B. Venkatesh. "Water Quality Assessment of a Lentic Water Body Using Remote Sensing: A Case Study." In Environmental Pollution. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5792-2_30.

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O’Farrell, Inés, Rodrigo Sinistro, Irina Izaguirre, and Fernando Unrein. "Do steady state assemblages occur in shallow lentic environments from wetlands?" In Phytoplankton and Equilibrium Concept: The Ecology of Steady-State Assemblages. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-2666-5_18.

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Desai, Suseelendra, R. D. Prasad, and G. Praveen Kumar. "Fusarium Wilts of Chickpea, Pigeon Pea and Lentil and Their Management." In Microbial Interventions in Agriculture and Environment. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9084-6_3.

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Moll, Don, and Edward O. Moll. "Communities and Habitats." In The Ecology, Exploitation and Conservation of River Turtles. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195102291.003.0006.

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Rivers are dynamic and diverse ecosystems composed of a variety of habitats including the main channel, side channel, flood plain and backwater lakes as discussed briefly in chapter 2. Each habitat typically contains a characteristic assemblage of turtles (herein considered synonymous with a chelonian community). Although riverine chelonians may appear anywhere in the river, most species specialize in one or more habitats where they occur in maximum numbers and biomass. Thus, the various habitats of the river may have similar species composition but the rank abundance for each species will differ. Basic divisions of typical rivers are lotic (flowing water) habitats and the lentic (still water) habitats. Beyond this, habitat divisions involve such physical features as gradient (headwaters versus lower reaches), substrate (sand, gravel, and mud), size (feeder streams versus the river proper), shoreline heterogeneity (wooded, marsh, swamp, etc.) and even temperature. One can expect differences in species composition associated with any of these habitat features. The composition of river turtle communities is affected by the biotic as well as the physical environment of the stream. The presence or absence of lower and higher plants, competing species, or predators can all affect community composition. This chapter is chiefly concerned with assemblages of species rather than the individual species comprising these groups. It will examine the composition of river turtle communities, their ecology, and their evolution. The concept that organisms occur in assemblages of species interacting to produce distinctive community characteristics was neglected for many years in the herpetological literature. Prior to the mid-1960s, most ecological research on reptiles was autecological (Scott, 1982). Nevertheless, a scattering of early papers described chelonian assemblages associated with particular habitats. Evermann and Clark’s biological survey of Lake Maxinkuckee in 1920 included an overview of the turtle community. In 1942, Fred Cagle delineated the species composition and relative abundance of turtles inhabiting six lentic habitats in southern Illinois. In 1950 he published a similar report with A. H. Chaney on ten lentic and two lotic habitats in Louisiana. Tinkle (1959) compared the species composition and relative abundance of species above and below the “fall line” in five United States rivers emptying into the Gulf of Mexico.
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Marcos da Silva, William, Luci Helena Zanata, Kennedy Francis Roche, et al. "Diversity of the Zooplankton (Alpha and Beta) in the Lentic Environment in the Miranda River Basin (MS, Brazil)." In Water Resources Management. Editora Scienza, 2018. http://dx.doi.org/10.26626/978-85-5953-031-5.2018c004.

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Moll, Don, and Edward O. Moll. "Indirect Factors Contributing to Extinction." In The Ecology, Exploitation and Conservation of River Turtles. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195102291.003.0009.

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Damming and sand mining are examples of factors that indirectly damage or destroy populations of river turtles. Direct factors such as human exploitation are typically more obvious causes of population decline and often serve as stimuli to incite conservation action by a concerned public or government. While direct factors typically kill animals outright or at least remove them from the gene pool, indirect factors can surreptitiously reduce their chances for survival by altering habitat or reducing food supplies. As such, they may decimate a population before it becomes obvious that something is wrong. Though less conspicuous than the direct causes, indirect factors are at least of equal importance in determining the ultimate survival of a species. Table 6.1 summarizes the types of indirect factors affecting selected species. Two important types of indirect factors, habitat alteration and species introduction, are discussed below. Habitat alteration implies any change in an animal’s environment, but herein we will consider human or anthropogenic alterations. Anthropogenic habitat changes are not necessarily harmful to every type of turtle. Riverine specialists are more vulnerable to such changes than are eurytopic generalists that occupy a variety of lotic and lentic habitats. Generalists are by their nature adaptable and thus are less likely to be harmed by changing conditions. A study by D. Moll (1980) on the Illinois River illustrates this principle well. The original environment of the Illinois River has been greatly altered as a result of clearing and draining land for agriculture, dumping of municipal sewage (particularly by the Chicago Sanitary District), and the construction of a series of locks and dams by the Corps of engineers to facilitate barge traffic. Moll found that while these alterations had reduced or eliminated populations of Blanding’s turtles, yellow mud turtles and smooth softshells, generalist species such as the common slider, false map turtles, spiny softshells and common snapping turtles were thriving in the altered environment (see also Mills et al, 1966; Bellrose et al., 1977). Similarly, Anderson (1965) reported that commercial fishermen of the Mississippi and Missouri Rivers noted increases in softshells (spiny?) and snappers in areas having moderate sewage pollution.
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Faris, Mo'ez Al-Islam Ezzat, and Amita Attlee. "Lentils (Lens culinaris, L.)." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-0591-4.ch003.

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Lentils have been part of human diet from ancient times. This chapter focuses on the nutritional composition, presence of bioactive substances, antioxidants and health rendering properties of lentils. Recent definitions have considered lentils as a prophylactic and therapeutic functional food due to its considerable content of essential macronutrients, namely functional proteins and carbohydrates, and essential micronutrients, as well as bioactive phytochemicals such as phytates and polyphenols. Indeed, the presence of an impressive arsenal of secondary metabolites, minerals and bioactive constituents in lentils have shown to be promising contributors in the management and prevention of several human chronic diseases, attributed to their anticarcinogenic, hypoglycemic, hypocholesterolemic and blood-pressure lowering properties.
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"Conservation, Ecology, and Management of Catfish: The Second International Symposium." In Conservation, Ecology, and Management of Catfish: The Second International Symposium, edited by ANDREW L. RYPEL. American Fisheries Society, 2011. http://dx.doi.org/10.47886/9781934874257.ch56.

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&lt;em&gt;Abstract&lt;/em&gt;.—Growth rates are a core characteristic of catfish populations that are of increasing research interest. However, few studies have synthesized growth data across catfish populations and species to examine large-scale drivers of catfish growth. Here, a metaanalysis of growth was conducted for channel catfish &lt;em&gt;Ictalurus punctatus&lt;/em&gt;, blue catfish &lt;em&gt;I. furcatus&lt;/em&gt;, flathead catfish &lt;em&gt;Pylodictis olivaris&lt;/em&gt;, brown bullhead &lt;em&gt;Ameiurus nebulosus&lt;/em&gt;, and black bullhead &lt;em&gt;A. melas&lt;/em&gt;, and relationships were documented between growth and climate variables, hydrologic habitats (lentic versus lotic), and latitudinal countergradients (a tendency for faster subannual growth in the north). Blue catfish, black bullhead, and brown bullhead growth correlated significantly and positively with temperature metrics. Blue catfish, flat-head catfish, and brown bullhead growth also correlated significantly and positively with sunshine fraction, wind speed, and evapotranspiration. Channel catfi sh growth did not correlate to any climate metrics. After removal of growth effects related to climate, blue catfish and brown bullhead had significantly faster growth in lotic than lentic habitats. Channel catfish and black bullhead had faster growth in lentic than lotic habitats. Flathead catfish showed no difference in growth between hydrologic habitat types. After standardizing growth by postsexual maturation age and the thermal opportunity for growth, significant and highly predictive countergradient growth relationships (mean &lt;em&gt;r &lt;/em&gt;&lt;sup&gt;2 &lt;/sup&gt; = 0.47) were found for all five species across sites (i.e., faster temperature-standardized growth in more northerly populations). Slopes of these relationships did not differ among species, suggesting similar responses to latitude. There may be a genetic basis for countergradient growth in catfishes that developed over evolutionary scales via selection by a shared environmental factor. Catfish growth is variable within and among species but can be intensely shaped by all three primary factors evaluated in this study.
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Conference papers on the topic "Lentic environment"

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Sykas, Dimitris, Vassilia Karathanassi, and Spyros Fountas. "A new methodology for the discrimination of plant species and their varieties using hyperspectral data: application on vetch and lentil." In First International Conference on Remote Sensing and Geoinformation of Environment, edited by Diofantos G. Hadjimitsis, Kyriacos Themistocleous, Silas Michaelides, and George Papadavid. SPIE, 2013. http://dx.doi.org/10.1117/12.2027503.

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Shammout, Maisa'a W., and Hana Zakaria. "Wild water lentils plant (Duckweed,Lemnasp.) in nutrients removal of Jordan's irrigation ponds." In 2013 International Conference on Biomedical Engineering and Environmental Engineering. WIT Press, 2014. http://dx.doi.org/10.2495/icbeee130671.

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MALINAUSKAITĖ, Regina, and Edvardas KAZLAUSKAS. "INVESTIGATION OF SOW LENTIL REACTION TO IONIZED ALKALINE WATER DURING EARLY STAGES OF ONTOGENESIS." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.020.

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Plant physiological processes related to plant growth and development strongly depends on the environmental stress factors. Response to stress appears as a complex of different reactions with a particular feedback on plants. Influence of ionized alkaline water to sow lentil physiological reactions was investigated by analyzing changes in biomass accumulation, assimilates partitioning and pigment content. Ionized alkaline water at (8.4 pH) was applied during 6–7 and 8–9 leaves development stage. According to experiment results, at the latest stage of investigation, ionized alkaline water increased lens dry matter content more than 1.44 times. During experimental time increase in dry matter content was 13.96 %, when control plants gained only 3.47 %. Ionized alkaline water application resulted in 8.58 % significantly higher root dry matter content compare to control variant. Results of our experiment revealed the significant effect of ionized alkaline water to chlorophyll content. Chlorophyll a and chlorophyll b in control plants had a tendency to decline, whereas in experimental variant with ionized water, increase in pigment concentration was observed.
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Raimondi, Francesco Maria, Domenico Curto, and Daniele Milone. "Environmental sustainability in non-residential buildings by automating and optimization LENI index." In 2018 Thirteenth International Conference on Ecological Vehicles and Renewable Energies (EVER). IEEE, 2018. http://dx.doi.org/10.1109/ever.2018.8362350.

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Kulikov, Konstantin N., Rinat A. Nizamutdinov, and Andrey N. Abramov. "The Conceptual Solutions Concerning Decomissioning and Dismantling of Russian Civil Nuclear Powered Ships." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96138.

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From 1959 up to 1991 nine civil nuclear powered ships were built in Russia: eight ice-breakers and one lash lighter carrier (cargo ship). At the present time three of them were taking out of service: ice-breaker “Lenin” is decommissioned as a museum and is set for storage in the port of Murmansk, nuclear ice-breakers “Arktika” and “Sibir” are berthing. The ice-breakers carrying radwastes appear to be a possible source of radiation contamination of Murmansk region and Kola Bay because the ship long-term storage afloat has the negative effect on hull’s structures. As the result of this under the auspices of the Federal Targeted Program “Nuclear and Radiation Safety of Russia for 2008 and the period until 2015” the conception and projects of decommissioning of nuclear-powered ships are developed by the State corporation Rosatom with the involvement of companies of United Shipbuilding Corporation. In developing the principal provisions of conception of decommissioning and dismantling of ice-breakers the technical and economic assessment of dismantling options in shiprepairing enterprises of North-West of Russia was performed. The paper contains description of options, research procedure, analysis of options of decommissioning and dismantling of nuclear ice-breakers, taking into account the principle of optimization of potential radioactive effect to personnel, human population and environment. The report’s conclusions contain the recommendations for selection of option for development of nuclear ice-breaker decommissioning and dismantling projects.
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Nagar, Arvind. "Fatigue Damage at Open Holes in Laminated Composite Under Thermo Mechanical Loads." In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/cmda-29080.

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The high temperature composites have been studied for applications to secondary structures due to their light weight and thermal resistance. Relatively few studies have been conducted to consider them for primary structural load bearing capabilities. These studies focused on titanium matrix composites to characterize their material behavior [1], unidirectional [2], simple loading conditions [3, 4] in a laboratory environment or unrealistic structural geometry [5]. The purpose of this work was to study fatigue damage and determine fatigue life in titanium matrix composite panels at unloaded fastener holes subjected to thermo-mechanical fatigue loads with variable amplitudes and temperature ranges. The test panels were machined from a prefabricated structural component with pre-drilled fastener holes. The test material was a 32 ply, quasi-isotropic, approximately .224 inch thick titanium matrix laminated composite with SCS-6 fibers and Ti-15-3 metal matrix. The material was HIP consolidated followed by slow cool to room temperature. The thermal zone area was 2 inches long along specimen length and 1.875 inch wide with a .3125 inch fastener hole at the center of the thermal zone. All specimens were machined using a 3-D water jet cutter. The test system consisted of a closed loop servo-hydraulic 30 Kip test system equipped with an MTS model 458 control system, a 486 PC containing a Keithley Metrabyte DAS 1601 computer card. The specimens were gripped using MTS model 647 side load hydraulic wedge grips equipped with surfalloy grip surface. The thermal loads were provided by an Ameritherm 5 kilowatt induction power supply and a total temperature instrumentation model MC-125 temperature controller. The temperature controller was equipped with analog set point and recorder output of temperatures with both set for 1–5 volt signal levels for 0 to 1832 F. The computer generated the temperature and load profiles and monitored error band for temperature. The computer system was set to null pace the temperature and loads if the temperature exceeded a 18 degree F variation. In effect all processes would hold until the temperature error returned inside the error band. This temperature error control was accomplished by comparing the command signal to the temperature controller to the process temperature signal from the temperature controller. The nominal uniform temperature zone was one inch long centered at the specimen geometric center and maintained required temperatures within 10 degrees. The variations in temperatures along the crack line were controlled to with in 5 degrees. Cooling blocks were attached to the test samples at the end of uniform sections near the fillet blend. These blocks were cooled with water passages and compressed air was passed through holes in the blocks and impinged on the samples to provide additional cooling at the end of the thermal ramp during cool -down. The air was turned on by the computer at about 400 degrees F during each block. On all notched test samples, an extensometer was mounted across the center flaw to obtain load-deflection data (COD). The optical crack lenth measurements were made using a 20 X Gaertner traveling microscope. The load versus crack mouth opening displacement readings were taken to compare with the optical measurements of the crack length. The thermomechanical load spectrum was developed from the distribution and frequency of loading that the airframe will experience based on the design service life and typical design usage. The loads and environmental spectra are used to develop design flight by flight stress environment spectra. The data and failure surfaces were analyzed to study the high stress and low stress failure, environmental degradations, surface cracks in matrix and the effect of notch on crack initiation failure mechanism. During this investigation it was observed that the most difficult task in thermomechanical fatigue testing is to control the cooling rate as required by the thermal profile. The results show that the fatigue life depend on the applied maximum stress, increased temperatures and hold levels of both the loads and the temperatures. The variation in experimental fatigue life is with in the order of magnitude typical of fatigue data considering the complexity of the test and loading conditions. The SEM photographs and micrographs showed that in titanium matrix composite, the mode of cracking is under partial bridging of fibers at the matrix crack. The COD data was of little use for totally automated measurements when comparing with the crack sizes measured.
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Karluk, S. Rıdvan. "Effects of Global Economic Crisis on Kyrgyzstan Economy and Developments in Economic Relations between Turkey and Kyrgyzstan." In International Conference on Eurasian Economies. Eurasian Economists Association, 2011. http://dx.doi.org/10.36880/c02.00239.

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The global crisis which started in September 2008 adversely affected many global economies and also Kyrgyzstan economy. Kyrgyzstan economy which declined and experienced a severe recession in 2009 due to the crisis started recovering from the adverse effects of the crisis after 2010. What lie beneath this positive development is increased foreign exchange revenues abroad and vigor experienced in construction industry and industrial production. The recovery experienced in economies of Russia and neighbor Kazakhstan resulted in increased exports and thus increased revenues in foreign currencies obtained from foreign countries. The political disturbances experienced in Bishkek in April 2011 and ethnic conflicts experienced in southern Kyrgyzstan in June 2011, created an adverse effect on the economy. The crisis resulted in degradation of investment environment, adversely influenced the foreign investments and increased the current account deficit. These developments adversely influenced the banking sector too. The government attempted to diminish effects of the crisis through financial incentives. The budget deficit emerged as a result of crisis was attempted to be closed through support secured from International Monetary Fund (IMF). IMF, World Bank and Asian Development Bank lent great support to invigorating Kyrgyzstan economy after events of April and July. According to IMF, if political instability goes on in Kyrgyzstan in medium and long term, economic problems shall continue. Uncertainties in banking sector are amongst the main factors which increase the economic risks. Recovery of Kyrgyzstan economy is dependent on medium term financial policy measures to be applied to the economy and balancing the foreign trade.
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Victoria, Isabel Cristina Moreira, Attilio Bolivar Ourives de Figueiredo, Eliete Auxiliadora Assunção Ourives, Luiz Fernando Gonçalves de Figueiredo, Giovana De Freitas Rabelo Ribeiro, and Francisco Gómez Castro. "A COMPREENSÃO SISTÊMICA E O PENSAMENTO DO DESIGN PARA O DESENVOLVIMENTO DE PRODUTOS PARA A CULTURA SLOW FOOD E DE PRATICAS COLABORATIVAS." In Systems & Design 2017. Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/sd2017.2017.6645.

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RESUMO A sociedade atual vive em um contexto tumultuoso, sendo comum as pessoas viverem de forma mais estressadas, se alimentando mal e convivendo cada vez menos com as pessoas, perdendo oportunidades de fazer e manter relacionamentos pessoais. Como este estilo de vida está saturado, gerando problemas de saúde aos indivíduos, existem diversos estudos que comprovam a tendência de que as pessoas buscarão um melhor aproveitamento do seu tempo, com um maior contato com a natureza, dando valor ao seu próprio bem-estar, prestando mais atenção no que consome e em como consome, assim como a valorização do prazer de estar em um meio social. Nesse contexto, o objetivo deste trabalho é contribuir por meio da visão sistêmica e do design, o incentivo e a prática da filosofia Slow Food, e dessa forma, promover a preocupação com uma saudável forma de alimentação e a ação colaborativa entre as pessoas, em que um indivíduo possa cooperar com o outro, resgatando o convívio e socialização. Assim, pretende-se atuar em pequenas unidades urbanas externas, como prédios, condomínios, praças e avenidas com intuito de criação de um artefato que motive a prática dessa filosofia, assim como impulsione também as práticas colaborativas nestes locais, buscando a integração social e desenvolvimento econômico e ambiental, atendendo os princípios da sustentabilidade e o desenvolvimento local. O método de pesquisa usado é descritivo, em que se observou e analisou as situações e relações dos indivíduos, tanto de forma individual quanto as relações em sociedade. Os instrumentos escolhidos para coleta de dados foram o questionário, entrevistas e observações abertas, feitas informalmente ao decorrer das entrevistas. Neste trabalho integrou-se dois métodos de projeto, a ferramenta HCD/IDEO (Human Centered Design - Design Centrado no Ser Humano), usado como base, com técnicas para o entendimento dos desejos e necessidades da comunidade estudada e o Guia de projeto NASDesign/UFSC (Núcleo de Abordagem Sistêmica do Design/Universidade Federal de Santa Catarina), dividido em três fases: Sentir, Agir e Realizar, como complementação. Ao final, conclui-se que o modelo físico do produto proposto atende uma lista de requisitos divididos em três grande grupo: requisitos de produto, referentes à forma, materiais e texturas do objeto; requisitos do usuário, referente a necessidade entendida a partir do tipo de ambiente em que o produto está, e de como ele está sendo usado e aos requisitos do contexto de uso, que consiste nas necessidades do usuário observado durante a pesquisa.Palavras Chaves: design de produto, slow food, sustentabilidade. REFERÊNCIAS ANDRADE, Aurélio L. et al. 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BRUNDTLAND, Gro Harlem. Nosso futuro comum: Comissão Mundial sobre Meio Ambiente e Desenvolvimento. 2a. ed. Rio de Janeiro: FGV, 1991. BRUNEL, Felipe Kanarek; O design estratégico em nível metaprojetual como suporte para a inovação social: o caso slow food, p. 202-210 . In: Anais do 5º Simpósio Brasileiro de Design Sustentável [=Blucher Design Proceedings, v.2, n.5]. São Paulo: Blucher, 2016. ISSN 2318-6968, DOI 10.5151/despro-sbds15-2st701b CAPELLO, Giuliana. Slow Life: vida mais calma, lenta e confortável. Planeta Sustentável: 16 set 2008. Disponível em: &amp;lt;http://planetasustentavel.abril.com.br/blog/gaiatos-e-gaianos/109647/&amp;gt;. Acesso em: 4 out. 2016. CAPRA, Fritjof. Teia da vida: uma nova compreensão científica dos sistemas vivos. São Paulo: Cultrix, 1998 CARDOSO, Rafael. Uma Introdução à História do Design. São Paulo: Edgard Blucher, 2008. 56. COGO, Rodrigo. Tendências Globais de Consumo. Disponível em: &amp;lt; http://www.aberje.com.br/blogs/post/tendencias-globais-de-consumo-para-2016/&amp;gt;. Acesso em: 1 nov. 2016. DEHEINZELIN, Lala. Desejável Mundo novo: vida sustentável, diversa e criativa em 2042. 1ª edição. São Paulo, SP | 2012 ERLHOFF, Michael; MARSHALL, Timothy (Ed.) Design Dictionary: Perspectives on Design Terminology. Basel, Switzerland: Birkhauser Verlang Ag, 2008. (Board of International Research in Design). GIL, A. C. Como elaborar projetos de pesquisa. 4. ed. São Paulo: Atlas, 2010. ICSID. Definition of Design. About ICSID: 2013. Disponível em: &amp;lt;http://www.icsid.org/about/about/articles31.htm&amp;gt;. Acesso em: 04 out. 2016. IDEO. HCD: Human Centered Design - kit de ferramentas. 2. ed. 2010. KRUCKEN, L. Design e Território: valorização de identi- dades e produtos locais. São Paulo: Studio Nobel, 2009. KRUCKEN, L.; TRUSEN, C. A comunicação da sustentabilidade em produtos e serviços. In: DE MORAES, D., KRUCKEN, L. Design e Sustentabilidade. 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MELO FILHO, Álvaro de. Designing marketing. Fragmentos de Cultura, Goiânia, 2009. Disponível em: seer.ucg.br/index.php/fragmentos/article/viewFile/994/696. Acesso em: 14/04/2011. MORARES, Dijon de. Metaprojeto: o design do design. São Paulo: Blucher, 2010. MORARES, Dijon de; KRUCKEN, Lia. Cadernos de estudos avançados em design: Sustentabilidade II. Barbacena: EdUEMG, 2009. 79p. MOZOTA, B. B. Gestão do design: usando o design para construir valor de marca e inovação corporativa. Porto Alegre: Bookman, 2011. POTTER, N. Qué es un diseñador: objetos, lugares,mensajes. Buenos Aires: Paidós, 1999. REID, Mariana. A contribuição do design na motivação da prática do Slow Food; Florianopolis,SC, 2014. 149 p. RICHARDSON, R. J. Pesquisa social: métodos e técnicas. 3 ed. São Paulo: Atlas, 2008. Slow Food Brasil, 2013. Disponível em: &amp;lt;http://www.slowfoodbrasil.com/&amp;gt;. Acesso em: 4 out. 2016. Slow Moviment Portugal, 2014. Disponível em: &amp;lt;http://www.slowmovementportugal.com/&amp;gt; Acesso em: 4 de out. 2016. Slow Moviment, 2016. Disponível em &amp;lt;http://www.slowmovement.com/slow_living.php&amp;gt; Acesso em: 4 de out. 2016. STICKDORN,Marc. Isto é design thinking de serviços/ Marc Stickdorn, Jakob Schneider e coautores ; tradução: Mariana Bandarra ; revisão técnica : Clarissa Biolchini. Porto Alegre : Bookman, 2014. SUDJIC, Deyan. A Linguagem das Coisas. Rio de Janeiro: Intrínseca, 2010. THACKARA, John. Plano B: o design e as alternativas viáveis em um mundo complexo - tradução Cristina Yamagami - São Paulo : Saraiva : Versar, 2008. 299 p. VALENTE, Edison. Slow Design. Revista Planeta: Ambiente: out.2013. Disponível em: &amp;lt;http://revistaplaneta.terra.com.br/secao/ambiente/slow-design&amp;gt;. Acesso em: 30 out. 2016. 58 VEZZOLI, Carlo. Design de sistemas para a sustentabilidade: teoria, métodos e ferramentas para o design sustentável de sistemas de satisfação. 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Reports on the topic "Lentic environment"

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Prysyazhna-Gapchenko, Julia. VOLODYMYR LENYK AS A JOURNALIST AND EDITOR IN THE ENVIRONMENT OF UKRAINIAN EMIGRATION. Ivan Franko National University of Lviv, 2021. http://dx.doi.org/10.30970/vjo.2021.50.11094.

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In this article considered Journalistic and editorial activity of Volodymyr Lenika (14.06.1922–02.11.2005) – one of the leading figures of Ukrainian emigration in Germany. First outlined basic landmarks of his life and creation. Journalistic and editorial activity of Volodymyr Lenik was during to forty years out of Ukraine. In the conditions of emigration politically zaangazhovani Ukrainians counted on temporality of the stay abroad and prepared to transference of the created charts and instituciy on native lands. It was or by not main part of conception of liberation revolution of elaborate OUN under the direction of Stepan Banderi, and successfully incarnated in post-war years. Volodymyr Lenik, executing responsible commissions Organization, proved on a few directions of activity, which were organically combined with his journalistic and editorial work. As an editor he was promotorom of creation and realization of models of magazines «Avangard», «Krylati», «Znannia», «Freie Presse Korespondenz», newspapers «Shliakh peremogy». As a journalist Volodymyr Lenik left ponderable work, considerable part of which entered in two-volume edition «Ukrainians on strange land, or reporting, from long journeys». Subject of him newspaper-magazine publications directed on illumination of school, youth, student, cultural, scientific problems, organization and activity of emigrant structures, political fight of emigration, to dethronement of the antiukrainskikh Moscow diversions and provocations. Such variety of problematic of works of V. Lenika was directed in the river-bed of retaining of revolutionary temperament in the environment of diaspore, to bringing in of it to activity in public and political life. Problematic of him is systematized publicism and journalistic appearances, which was inferior realization of a few important tasks, namely to the fight for Ukrainian independence in new terms, cherishing and maintainance of national identity, counteraction hostile soviet propaganda. On an example headed Volodymyr Lenikom a magazine «Knowledge» some aspects are exposed him editorial trade.
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