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This study reviewed the advancements of Agriculture 4.0 in mechanized sugarcane harvesting, analyzing the efficiency of the mechanized harvesting system and evaluating the impact of the harvesting, loading, and transportation process costs. The mechanized sugarcane harvesting system in the 2020/21 harvest reached 91.6% or approximately 588 Mg in Brazil. As this activity demands a high amount of capital - assets, labor, inputs - the cost of the harvesting, loading, and transporting process represents 40% of the sugarcane production cost. The continuous delivery of raw material to the industrial processing unit is essential to ensure stability and maximum yield for obtaining sugar and ethanol, especially in an environment with geographical dispersion of harvesting fronts and agronomic factors linked to crop management. Therefore, tools that enable real-time equipment tracking benefit process management. Digital agriculture, defined as the application of technologies that seek to add intelligence and process automation, allows for improved agricultural management of farms, making it possible to reach new productivity levels in the field. The data generated through digital agriculture allows for the creation of models to construct scenarios that improve decision-making, both in terms of operational strategies - distribution of resources by harvesting front - and long-term strategies - the adoption of new technologies in the process. [ABSTRACT FROM AUTHOR]

A urbanização do município de Ubá, em Minas Gerais, foi condicionada pelo relevo dos “mares de morro” e sua a ocupação se iniciou no fundo de vale, na várzea do Ribeirão Ubá. Este, sem suas margens preservadas e sofrendo diversas intervenções, tornou a cidade vulnerável a eventos extremos de precipitação, que desencadeiam inundações urbanas. O presente estudo objetivou mapear as áreas que estão mais suscetíveis a esses eventos. Com essa finalidade se utilizou um modelo de multicritérios construído com três planos de informação: altitude, declividade e uso e ocupação. Os resultados do mapeamento foram confrontados com dados registrados de inundações pela Defesa Civil e pelos portais de notícia da região. A conclusão é que o modelo, apesar de possuir limitações, é uma ferramenta funcional para identificação de áreas de risco a tais eventos, possibilitando ao poder público intervir em áreas críticas e ordenar futuras ocupações urbanas. .

This article is an excerpt from doctoral research that investigated the limits and possibilities of the didactic methodology study and research path (SRP), of the anthropological theory of the didactic (ATD), as a teaching alternative for basic education in Brazil. We started the research by considering the following question: How can we find the shortest possible route connecting an origin (O) and a destination (D)? This problem led us to consider the development of what in ATD is called the reference epistemological model (REM). The REM model must be explained whenever you want to formulate an authentic didactic problem or study-generating question. This work initially presents a comparison of the modeling between ATD and other theoretical currents and then an example of an epistemological reference model based on the problem of choosing the shortest access path from one point to another under certain conditions. We consider the objective of this article to relate, through the notion of praxeology, the possibility of modeling in the light of ATD. The comparative study shows us that modeling within the scope of ATD is not an object to be taught nor a means to learn and teach certain mathematical concepts. The main characteristic of modeling in ATD consists of the elaboration and experimental contrast of epistemological mathematics models to approach didactic problems as a provisional hypothesis, which can be modified while developing an SRP. [ABSTRACT FROM AUTHOR]

One of the most common environmental impacts that has caused irreversible effects on ecosystems is the introduction of exotic species. In addition to the ecological disasters that can be caused, such as the decline and extinction of native species, this phenomenon can generate significant economic losses and the possibility of the spread of parasites that are transmitted by these exotic species. These processes can be accentuated by climate change, which over time alters the global distribution pattern of the affected species, generating cases of niche overlap with species that share similar niches. In this sense, the knowledge about the areas with possible occurrence these species can direct the monitoring and control measures. In this study, we developed current and future prediction models to identify areas of suitability in the Neotropics for Melanoides tuberculata (Müller, 1774) and nine species of mollusks native to the American continent using the ecological niche modeling tool. In addition, we evaluated the ecological niche overlap between the invasive species and the native species of freshwater mollusks to verify whether the effects of climate change would alter the distribution of these organisms. The following methodological procedures were adopted to prepare the forecasting models: records of occurrence of the mollusks in different databases and search of environmental data for climate conditions in current and future scenarios in WorldClim 2.0 (SSP2-4.5 and SSP2-8.5). Besides, modeling procedures using seven packages of R software, evaluation of the models using the true skill statistic (TSS) metric, construction of maps and quantification and overlapping of ecological niche of the species included in the analysis. The results indicated that several areas of the Neotropics are suitable for the occurrence of M. tuberculata in the current scenarios. Moreover, the suitable areas for its occurrence will probably be expanded in both future scenarios. For native species, there were significant differences in relation to the areas of suitability, with a reduction for some species. Niche similarity tests indicated significant overlap only between M. tuberculata and the planorbid Biomphalaria straminea (Dunker, 1848). We discuss that the expansion of M. tuberculata can have negative consequences, including the reduction of native gastropod species and the spread of trematodes of medical and veterinary importance that this mollusk can transmit. [ABSTRACT FROM AUTHOR]

This research article presents the results of implementing a didactic design based on the "hourglass model" for teaching ecology. This model is based on environmental history and the interactions among organisms in space-time systemically. This study was conducted with 16 high school students from a public school in Bogotá, focusing on wetland ecosystems as a reference. The guiding activities were based on modeling, environmental history, and georeferencing. These activities included: 1) a field trip to the Torca wetland, and 2) a video about the environmental history of wetlands in Bogotá. The students, in pairs, constructed models that reflected their initial perception of the wetland, which were cotinually refined through socialization and feedback until they arrived at a more complex second version. This research has a qualitative approach and is a multiple-case study. For analysis, NVivo software was used with three pre-established categories: the material model, the intercultural approach, and socio-ecological factors. Both versions of the models were considered, and word clouds were generated from the transcriptions of the presentations. Among the results, it is highlighted that students were able to georeference bodies of water, eastern hills, roads, garbage, and buildings, not only from the video but also thanks to the experience on the field trip. Most students understood past events as a result of current socio-cultural and environmental conditions. The models, as a didactic resource, demonstrate the importance of developing models as sensory tools that facilitate the construction of explanations. [ABSTRACT FROM AUTHOR]

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Copyright of Revista Ciencia y Poder Aéreo is the property of Escuela de Postgrados de la Fuerza Aerea Colombiana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

O objetivo deste estudo foi avaliar as características morfométricas e modelar os principais índices morfométricos de um povoamento de P. taeda, submetido a diferentes regimes de desbastes. Foram coletadas informações de circunferência a altura do peito (cap), altura total (h) e altura de inserção de copa (hic) e raios de copa (N-S, L-O) de 252 árvores pertencentes a nove tratamentos (T0: sem desbaste, T1: desbaste fraco, T2: fraco/médio, T3: médio, T4: médio/médio, T5: médio/forte T6: sistemático, T7: forte, T8: extremo). Posteriormente, foram calculados os índices morfométricos de diâmetro de copa (dc), comprimento de copa (cc), proporção de copa (pc), grau de esbeltez (ge), índice de saliência (is), índice de abrangência (ia) e formal de copa (fc). Para a modelagem dos índices morfométricos foram ajustados oito modelos matemáticos para estimar a variável dc, e para os demais índices foi realizado a modelagem pelo método Stepwise. Os critérios de seleção da melhor equação foram o R²aj, Sy.x%, significância dos coeficientes e análise gráfica dos resíduos. Foi realizado a correlação entre os índices morfométricos por Pearson a 95% de probabilidade. De maneira geral, as aplicações dos desbastes favoreceram o crescimento da copa das árvores com crescimento gradativo à medida que se intensificava o desbaste, sendo que o extremo apresentou ac média quatro vezes maior que os demais, influenciando diretamente no dap médio e nos índices de diâmetro de copa e grau de esbeltez. As equações deste estudo podem ser utilizadas para estimar as variáveis de grau de esbeltez.

A segurança hídrica é ampla, ainda assim tem sido modelada como sinônimo de escassez hídrica. No Brasil, a ANA criou o Índice de Segurança Hídrica (ISH) que seguiu este mesmo viés. Como ainda há poucos modelos que considerem outros fatores igualmente importantes, como as inundações, em suas análises de segurança hídrica, neste trabalho se propôs a desenvolver um modelo (denominado ISHajustado) a partir do ISH, incorporando inundações para torná-lo mais coerente com o conceito de segurança hídrica. Metodologicamente, modificou-se a dimensão resiliência do ISH, adicionando-se o “índice de vulnerabilidade às inundações” (IVI) em sua composição. O ISH ajustado foi aplicado em uma projeção para 2035 da segurança hídrica na Região Hidrográfica do Rio Jucu (RHJ), no estado do Espírito Santo. O novo modelo apontou que algumas áreas com maior vulnerabilidade a inundações passaram a apresentar menor segurança hídrica do que no ISH original. Esses resultados se mostraram sensíveis ao contexto da segurança hídrica na RHJ e coerente com percepções locais. Conclui-se que o aprimoramento realizado aponta para a necessidade de modelos que abordem mais representativamente a segurança hídrica da forma como ela é conceituada.

Investigações científicas sobre a dinâmica de comunidades vegetais promovem estratégias apropriadas para o manejo de florestas naturais, com fins conservacionistas ou sustentavelmente exploratórios. O objetivo foi avaliar a acurácia de modelos de regressão para projetar o crescimento em diâmetro e calcular o tempo de passagem por classe diamétrica de fustes em um fragmento de Mata Atlântica sob recuperação. O trabalho foi conduzido em um fragmento de 2,53 ha no município de São João Evangelista (MG). O inventário foi realizado aos 80 e 104 meses após início do processo de recuperação. As informações de incremento periódico anual (IPA) em diâmetro foram utilizadas para os cálculos do tempo de passagem e idade relativa. A estimativa do IPA oscilou em torno de 1,5 a 1,7 cm ano-1 (tempo de passagem de 3 anos em amplitudes de 5 cm) no intervalo de 10 a 25 cm de diâmetro. A idade relativa para os fustes alcançarem 5 cm de diâmetro foi de, aproximadamente, 5 anos. Conclui-se que os modelos logístico e de Curtis, adaptados para a estimativa de IPA, são eficientes para a análise do tempo de passagem no fragmento em estudo. Fragmentos durante a recuperação florestal podem exibir taxas de crescimento similares entre classes diamétricas.

A linguagem Modelica surge em 1996 e é uma POO (Programação Orientada a Objetos), que permite a reutilização de elementos programados individualmente. Devido a essa característica, tornou-se uma linguagem ideal para a modelagem de vários sistemas físicos e matemáticos, incluindo áreas da Engenharia como a hidráulica, eletrônica e química. O software OMedit utiliza a linguagem Modelica, mas ainda carece de uma biblioteca pneumática. Este trabalho, portanto, propõe a criação de uma biblioteca computacional de elementos pneumáticos, assim como a validação de diversos modelos matemáticos utilizados. Foi realizada uma revisão bibliográfica com o objetivo de identificar as principais equações que regem os componentes pneumáticos. Foram discutidos o comportamento da vazão em massa através de válvulas solenoides, como também a dinâmica das pressões nas câmaras dos atuadores pneumáticos ao longo do tempo. Depois de modelados computacionalmente cada um dos elementos no software, experimentos no laboratório foram realizados para a coleta de dados empíricos para obter não só o comportamento das partes como também os parâmetros que serão utilizados nos modelos computacionais. Uma placa de aquisição de dados foi utilizada junto com transdutores de pressão e posição para obter o comportamento dos componentes ao longo do tempo. Houve a necessidade de um tratamento de dados como o descarte de leituras de ruídos, devido aos instrumentos de medição utilizados, e um levantamento de aproximações polinomiais para a aplicação de métodos matemáticos de minimização de erros. Por fim, foram simulados e obtidos com êxito curvas características da pressurização de um reservatório e avanço e retorno de um atuador pneumático computacionalmente, com as curvas experimentais e teóricas comparadas para expor o grau de exatidão obtido. Com isso, obtém-se uma ferramenta para a simulação computacional de um atuador pneumático utilizando-se linguagem Modelica, bem como a proposta de uma biblioteca pneumática para o OMedit.

Copyright of Ingeniería Solidaria is the property of Universidad Cooperativa de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Brasileira de Engenharia Agricola e Ambiental - Agriambi is the property of Revista Brasileira de Engenharia Agricola e Ambiental and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Gestión Joven is the property of Asociacion Espanola de Contabilidad y Administracion de Empresas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A busca por novas metodologias de ensino da Matemática nos primeiros anos do Ensino Fundamental tornou-se maior nos últimos dois decênios. Tal fato se deve à discussão acerca da melhoria da chamada “qualidade” do ensino da Matemática ofertado, bem como da própria formação do professor pedagogo, responsável por esse ensino na Educação Básica. Dessa forma, assumindo como contexto um curso de formação continuada com professores pedagogos, o presente artigo tem por objetivo apresentar um estudo hermenêutico-fenomenológico acerca da Modelagem Matemática (MM) entendida como metodologia de ensino, investigando quais seriam as concepções manifestadas nos discursos proferidos durante a realização de um curso de formação continuada. Para tanto foram analisados os discursos de três dos professores participantes, bem como suas atividades enviadas para o ambiente virtual. Como resultados, foi percebido que duas das três professoras compreenderam a MM como metodologia discutindo-as pedagogicamente, além das compreensões acerca da continuidade metodológica que o processo de ensino da Matemática deve apresentar nos primeiros anos do Ensino Fundamental.

Este trabalho propõe uma Sequência Didática (SD) inclusiva, abordando conteúdos de Termodinâmica para estudantes surdos de classes comuns da segunda série do Ensino Médio. Trata-se de uma pesquisa teórica, em que a proposta está fundamentada na teoria da modelagem científica de Mario Bunge e estruturada metodologicamente segundo os ciclos de modelagem apresentados por David Hestenes, os quais podem ser divididos em dois estágios: o desenvolvimento do modelo e implementação dele a partir de situações problemas. Por esta via, a SD poderá favorecer a participação ativa dos discentes no processo de ensino-aprendizagem, tendo em vista que, a modelagem explora o espaço-visual característico da Língua Brasileira de Sinais - Libras, possibilita a explicitação das concepções prévias, permite a elaboração e o teste de hipóteses, a manipulação de materiais concretos, assim como, a visualização de fenômenos, propiciando a evolução conceitual e o reconhecimento do conteúdo em situações do cotidiano.

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This article investigates the knowledge of secondary school students about immunity and vaccines, using an open-ended questionnaire along with its evaluation rubric. Thus, the rubric includes four response categories for each question, whose meanings reveal the kinds of ideas held by the students. The qualitative results obtained show ideas that are not very consistent with the referent learning model for immunity; however, an analysis of Rasch shows articulated knowledge, which is evidence through the unidimensionality of the measurements obtained. This suggests the possibility of using them as a guide to a possible progression itinerary that facilitates student learning over the course of their education. These results not only have implications at a theoretical and classroom practice levels, but also entail the validation of the rubric constructed for use with this student population. [ABSTRACT FROM AUTHOR]

Identifying, quantifying and spatialising factors that condition water erosion processes, such as erosivity, can help to understand the process of sediment input to watercourses and, in this specific case, to hydroelectric plant reservoirs. The aim of this study was to estimate and spatialise rainfall and erosivity indices in the Area of Direct Influence (AID) of the Batalha reservoir (GO/MG). Using the database provided by the National Water Agency's (ANA) HIDROWEB portal, the equation proposed Silva et al. (1997) was adopted, and to measure the accuracy of the erosivity estimation models, the Fournier index (1958) was adopted for rainfall in the region, for a historical series from 1991 to 2021. To do this, the estimates took into account monthly and annual rainfall and their spatial variability for the south-eastern regions of Goiás and north-western Minas Gerais. By means of a descriptive analysis and spatialisation of the Erosivity Index (EI), in the study of annual variability, there was a tendency for it to increase in an approximately north-south direction, towards the south and centre-south. Similarly, in the study of monthly variability, there was an increase in the EI also in an approximately north-south direction, towards the south and centre-south, in the months with the highest rainfall. It was also observed that the months with the highest rainfall, corresponding to the spring and summer seasons, had the highest Erosivity Indices, classified as high and very high, except for October. For the drier months, corresponding to autumn and winter, these indices were classified as low and very low. Overall, the average annual erosivity was classified as high. [ABSTRACT FROM AUTHOR]

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This article discusses the use of electroencephalography (EEG) in neuromarketing research. It provides a list of articles that have applied EEG to study various aspects of marketing, such as product preferences, advertising effectiveness, brand extension, and consumer behavior. The article also presents a proposed model for the experimental process in neuromarketing research using EEG. The model was validated by experts in the field. Overall, the article highlights the growing interest in using EEG as a tool to understand consumer responses and decision-making processes in marketing. [Extracted from the article]

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Copyright of Environmental & Social Management Journal / Revista de Gestão Social e Ambiental is the property of Environmental & Social Management Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Environmental & Social Management Journal / Revista de Gestão Social e Ambiental is the property of Environmental & Social Management Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Environmental & Social Management Journal / Revista de Gestão Social e Ambiental is the property of Environmental & Social Management Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Devido à escassez hídrica superficial, típica do norte de Minas Gerais, o uso das águas subterrâneas disponíveis assegura a disponibilidade de água em padrões de qualidade. Os problemas enfrentados pelo uso de águas subterrâneas de formas diversas (consumo humano, mineração, transportes, indústria alimentícia dentre outros) estão, possivelmente, relacionados com a salinização, alcalinização e precipitação, conforme à composição química dessas águas. Isso, geralmente, potencializa a solidificação dos solos, problemas de saúde relacionados ao consumo de águas inadequadas, além da obstrução ou corrosão de tubulações e equipamentos. O monitoramento da composição química e das características físico-químicas das águas pode ser feito por meio de modelagens hidrogeoquímica. O software PHREEQC simula reações químicas e prevê condições de supersaturação, o que indica a possibilidade de formação de sais de baixa solubilidade em sistemas aquosos, por meio de cálculos das constantes de equilíbrio químico. Outro método que permite calcular o índice de saturação de um sistema aquoso é pela equação de Langelier (LSI). Neste contexto, este trabalho tem a finalidade de calcular e classificar a dureza das águas subterrâneas e superficiais da região de Janaúba e Jaíba, bem como estimar as respectivas condições de supersaturação para sais carbonatados, usando o PHREEQC, além de calcular os índices de saturação, utilizando a equação de Langelier. O cálculo da dureza das águas dos poços estudados inferiu a classificação destes como muito duras. Já as águas superficiais foram classificadas como moderadamente duras. De acordo com a modelagem, as águas subterrâneas estão supersaturadas com CaCO3 e CaMgCO3. Logo, apresentam tendência de precipitação destes sais. As amostras do rio Gorutuba e do rio Lagoa Grande apresentaram índices de saturação negativos, indicando impossibilidade de cristalização dos sais carbonatados. Tal tendência pode estar relacionada ao menor tempo de contato das águas superficiais com rochas cársticas do que as águas subterrâneas. Os índices de saturação da calcita calculados e modelados apresentaram concordância nos resultados de todas as amostras de poços e rios estudados. Logo, indica a aplicabilidade do uso do software PHREEQC, no contexto deste trabalho.

Neste artigo, analisamos o movimento de uma mola Slinky em queda, a partir do repouso, inicialmente suspensa em uma de suas extremidades. É bem conhecido que, nessas condições, a Slinky se move de forma inusitada: sua extremidade inferior fica em repouso até a chegada da extremidade superior – como se a gravidade estivesse sendo desafiada! Fizemos uma revisão da literatura, e identificamos que a explicação mais amplamente divulgada para esse fenômeno de levitação aparente da base da Slinky em queda faz uso do conceito de informação (e parece não agradar a muitos). Mostramos que tal fenômeno pode ser explicado – e reproduzido através de uma simulação computacional, com um modelo simples – sem a ideia de que “leva um tempo para a informação de que a Slinky foi solta, em sua extremidade superior, chegar à extremidade inferior”.

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The pandemic situation has forced teaching and learning practices around the world to reassess their systems and innovate in terms of ergonomics. Highly visible changes have overturned teaching and learning habits. Initially highly improvised, distance learning in Moroccan schools has taken its first steps through repeated trial and error until it has established itself as a possible educational tool. Teachers and decision-makers, in unison, are faced with the urgent need to reinvent education and combine it with technology. A plethora of formats and platforms are now part of the vocabulary of education. However, in addition to diligent health conditions, distance learning is required to break with the accidental nature of its advent and become an optional, alternative or even blended mode. This study looks at the forms of distance assessment that need to be implemented in order to capitalise on, verify and enhance learners' achievements. [ABSTRACT FROM AUTHOR]

Forest fuel quantification in a typical Cerrado area is difficult due to the high costs and long field times associated with collecting data. In search of alternatives that facilitate data collection, indirect estimation has been studied, resulting in local equations for predicting the load based on easily obtainable variables. In this context, we sought to develop local equations to estimate the load of forest fuel, in a Cerrado area, in the Cantão Park State - Tocantins. As a function of variables measured in the field and digital variables from the processing of RGB digital images (Red, Green and Blue) acquired through aerial surveys. With the processing of digital images, the following variables were extracted: mean height in the digital model (hMDA) and point density in the threedimensional model (DPM). After the aerial survey, field sampling was carried out, collecting the following variables: mean height in the field (hc), number of individuals (Qti) and Total Fuel Material (MCT). Subsequently, equations were fitted, adopting the entire sample set. The model selection criterion was based on R²aj, Syx% and residual graph, in which adjusted coefficient of determination (R²aj) from 0.12 to 0.83 and residual standard error (Syx%) of 19.4 were obtained at 44%. It was observed that the use of control points performed by the MDA reduces the occurrence of errors, the correlations between the analyzed variables indicate the importance of considering multiple factors when performing analyzes and predictions in the study areas. [ABSTRACT FROM AUTHOR]

Forestry measurement is aimed at volumetric production of wood; however, for the pulp processing industry, the main interest is productivity in wood biomass and, to know this variable, it is necessary to determine the basic wood density (BWD) beforehand. Artificial neural networks (ANN) have been used in the forestry sector quite successfully to describe the dynamics of forest characteristics, such as estimating wood volume. In this context, the objective of this study was to assess the accuracy of the basic wood density estimates by means of ANN's with Continuous Forest Inventory (CFI) and edaphoclimatic input variables. The database consisted of 3,797 data, from permanent plots of the CFI conducted in Eucalyptus sp stands and edaphoclimatic data from the planting sites. The five best ANNs were selected and the analysis of the estimates was carried out through the correlation between the estimated and BWD, the relative root mean square error (RMSE%) and graphical information. It was observed that both the CFI, edaphoclimatic information and the combination of both are potential and present similar results for the basic wood density estimate, and the errors associated with the estimates are between 3.9% to 3.5%. The ANNs based only on the CFI information presented higher RMSE. The use of ANN's is feasible for estimating BWD and allows for excellent accuracy statistics. [ABSTRACT FROM AUTHOR]

Today biological invasion is one of the most dangerous threats to biodiversity and there are only few tools to monitor and control. This study structure and tested the potential of niche modeling procedures from data of occurrence of Hovenia dulcis Thunberg, and Tithonia diversifolia (Hemsl.) A.Gray, using the algorithm GARP and MaxEnt, associated with sets of environmental variables, in order to develop tools not yet used to predict invasion risk in the State of Santa Catarina. The potential niche models generated with GARP and MaxEnt algorithms proved efficient to generate potential niche models for species, indicating locations with risk of biological invasion. From this study it was observed that the niche modeling for invasive species represents an important tool for the mapping of invasions established and niche prediction for invasive species. These ecological niche models generated from the GARP and MaxEnt algorithms can provide relevant information on areas with risk of invasion to Tithonia diversifolia and Hovenia dulcis and may become a tool of institutional control in anticipation of new invasions and tracking the spread of invasive species in the State of Santa Catarina. [ABSTRACT FROM AUTHOR]

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Sigmae is the property of Universidade Federal de Alfenas (UNIFAL-MG) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

No desenvolvimento histórico da geografia física, diferentes autores contribuíram para o avanço metodológico de apreensão da realidade nesse campo científico. No contexto brasileiro, um dos principais expoentes foi Tricart (1977) através de sua classificação em unidades ecodinâmicas: meios estáveis, intergrades e fortemente instáveis. A partir disso, objetiva-se com esse artigo compreender as contribuições desse autor para a geografia física brasileira, a partir de sua obra Ecodinâmica. A partir da classificação morfodinâmica de Tricart (1977), verifica-se que as contribuições deste são deveras significativas e influentes para os estudos em Geografia Física, sobretudo no tocante às pesquisas abordando sistemas como meios físicos apresentando relações integradas, onde a paisagem é caracterizada por seu dinamismo e influências mútuas entre os elementos.

In this article is presented a proposal for modeling in the teaching-learning and evaluation of the Human Macroscopic Anatomy (HMA), based on the analysis of several models made by second semester students of the academic program of Medicine and Surgery. These models were carried out within the framework of a short course called Preanatomy, in which a participant observation was developed, followed by means of a field diary recorded by the main researcher. The models were evaluated with a rubric with five performance levels: preformal, receptive, resolutive, autonomous and strategic. It was found that 33.3 % of the students' models were at a strategic level, 25 % at a receptive level, 16.6 % at a resolutive level, 16.6 % at a preformal level and 8.3 % at an autonomous level. Regarding the students' difficulties by engaging in modeling activities, problems were detected to understand the use of anatomical terminology, identification and differentiation of structures in different cuts and views, and spatial location. According to these results, the modeling proposal includes the following stages: identification of a topic of interest; search, review, analysis and comparison of different texts; observation, inquiry and experimentation; development of the project for the construction of the anatomical model, interdisciplinary work; socialization; improvements to the anatomical model and writing of a manuscript with the model construction process. [ABSTRACT FROM AUTHOR]

Copyright of ECCOM: Educação, Cultura e Comunicação is the property of ECCOM: Educacao, Cultura e Comunicacao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Environmental & Social Management Journal / Revista de Gestão Social e Ambiental is the property of Environmental & Social Management Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

O caráter dinâmico do bem-estar animal na pecuária leiteira é um atributo útil para o planejamento, manejo e avaliação de sistemas de produção de bovinos leiteiros, mas este é um aspecto ainda pouco desenvolvido e raramente considerado, em parte, devido à falta de indicadores dinâmicos. Este trabalho propõe a resiliência como indicador dinâmico de bem-estar animal para ser utilizado nos protocolos de avaliação da pecuária leiteira. Esta resiliência foi definida como a capacidade do animal ou rebanho em lidar com distúrbios ao longo do tempo e recompor a trajetória do bem-estar após sofrer um distúrbio. A metodologia de dinâmica de sistemas viabilizou a operacionalização do conceito de resiliência por meio da construção de modelos conceitual e computacional e simulação dos índices: dureza, robustez, elasticidade, rapidez de recuperação e índice de resiliência. Os valores dos índices de resiliência simulados, como exemplo, indicaram a sua adequação como indicador dinâmico do bem-estar animal por serem aderentes aos conceitos etológicos intrínsecos e fornecerem um conjunto de informações úteis para comparar a dinâmica do estado do bem-estar animal em diferentes situações e cenários da bovinocultura leiteira.

Copyright of Revista Góndola, Enseñanza y Aprendizaje de las Ciencias is the property of Gondola, Ensenanza y Aprendizaje de las Ciencias and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Actas de Diseño is the property of Facultad de Diseno y Comunicacion, Fundacion Universidad de Palermo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Sipha maydis (Passerini) (Hemiptera: Aphididae) is a pest of cultivated cereals and wild grasses introduced into America and first reported in South America at Argentina in 2002. In Brazil, this aphid was detected first in wheat in Oct 2006 at Rio Grande do Sul State. Between 2007 and 2013 the aphid was reported in several localities in the humid subtropical region of Brazil (southern states of Rio Grande do Sul, Santa Catarina, and Paraná) on different plant species including Triticum aestivum L., Avena strigosa Schreb., Lolium multiflorum Lam., Hordeum vulgare L., Zea mays L. (all Poaceae) and uncultivated grasses. Sipha maydis also has been captured in yellow tray traps. Peak flight activity for S. maydis occurred in the spring-summer transition and was apparently correlated with average air temperature. Sipha maydis was able to complete its life cycle on A. strigosa, L. multiflorum, H. vulgare, Z. mays, and T. aestivum. During the nymphal phase the best hosts were A. strigosa, L. multiflorum, H. vulgare, and T. aestivum. Hordeum vulgare and T. aestivum were the best for the reproductive period and longevity. The intrinsic rate of increase was greatest on A. strigosa, L. multiflorum, and T. aestivum. Generation time was longer on H. vulgare, Z. mays, and T. aestivum. Net rate reproduction was greater in H. vulgare and T. aestivum, and the finite rate of increase was greatest on A. strigosa, L. multiflorum, H. vulgare, and T. aestivum. Although the distribution of S. maydis is expanding and covering the main wheat-growing region of Brazil, and despite the wide range of hosts and the direct damage it causes to local foraging sites, aphid populations are low and their economic importance is limited. However, it reveals that S. maydis has the potential to colonize subtropical regions. Sipha maydis (Passerini) é uma praga de cereais cultivados e gramíneas silvestres introduzida na América e relatada pela primeira vez na América do Sul na Argentina em 2002. No Brasil, o pulgão-preto-dos-cereais foi detectado pela primeira vez em Triticum aestivum L. em outubro de 2006 no Estado do Rio Grande do Sul. Entre 2007 e 2013, o pulgão foi relatado em várias localidades da região subtropical húmida do Brasil (Estados da Região Sul: Rio Grande do Sul, Santa Catarina e Paraná) em diferentes espécies de plantas como T. aestivum, Avena strigosa Schreb., Lolium multiflorum Lam., Hordeum vulgare L., Zea mays L. (todas Poaceae), e gramíneas não cultivadas. Sipha maydis também foi capturado em armadilhas do tipo bandeja amarela para pulgões alados. O pico de ocorrência das formas aladas na transição primavera-verão é aparentemente correlacionado com a temperatura média do ar. S. maydis foi capaz de completar o ciclo de vida em A. strigosa, L. multiflorum, H. vulgare, Z. mays, e T. aestivum. Durante a fase de ninfa, os melhores hospedeiros foram A. strigosa, L. multiflorum, H. vulgare, e T. aestivum. A H. vulgare e o T. aestivum foram os melhores para o período reprodutivo e longevidade. A taxa intrínseca de aumento foi grande em A. strigosa, L. multiflorum, e T. aestivum; o tempo de uma geração foi mais longo em H. vulgare, Z. mays, e T. aestivum; a taxa líquida de reprodução foi ótima em H. vulgare e em T. aestivum e a taxa de aumento finito foi grande em A. strigosa, L. multiflorum, H. vulgare, e T. aestivum. Embora a distribuição de S. maydis esteja se expandindo e cobrindo a principal região tritícola do Brasil, e a despeito da ampla gama de hospedeiros e dos danos diretos que causa aos sítios de alimentação, as populações de pulgões são baixas e sua importância econômica ainda é limitada. No entanto, revela que S. maydis tem potencial para colonizar regiões subtropicais. [ABSTRACT FROM AUTHOR]