Results 71 to 80 of about 845 (147)

Os modelos mentais relacionados ao aprendizado de sistemas lineares no ensino superior

open access: yesAlexandria, 2012
Na tentativa de investigar os modelos mentais de sistemas lineares foram entrevistados 58 alunos e 1 professor do Instituto Federal de Minas Gerais (IFMG) Campus Formiga.
Gustavo Venancio Pimenta   +4 more
doaj  

The Effect of Migration on Perceived Safety and Sleep Quality: An Analysis From Rural and Urban Indigenous Wixárika Communities in Jalisco, Mexico El efecto de la migración en la seguridad percibida y la calidad del sueño: un análisis en comunidades indígenas Wixaritari rurales y urbanas en Jalisco, México

open access: yesAmerican Journal of Biological Anthropology, Volume 190, Issue 3, July 2026.
ABSTRACT Objectives This study explores how perceived safety influences sleep quality among Wixárika individuals in Mexico. We compared the sleep quality of those living in a rural town in northern Jalisco with those living in the Guadalajara Metropolitan Area (GMA).
Leela McKinnon   +7 more
wiley   +1 more source

Previsão do consumo de energia elétrica na região Sudeste: aplicação de modelos ARIMA e LSTM

open access: yesRevista Brasileira de Estudos Regionais e Urbanos
O objetivo deste estudo é prever o consumo de energia elétrica na região Sudeste do Brasil, de abril de 2023 a março de 2024, utilizando modelos ARIMA e redes neurais LSTM.
Iago Gomes Gonçalves
doaj   +1 more source

More pumas (Puma concolor) does not change perceptions: The mismatched response of ranchers to the presence of a top carnivore

open access: yesPeople and Nature, Volume 8, Issue 7, Page 2148-2161, July 2026.
Abstract Human‐wildlife conflicts (HWCs) are one of the most critical conservation challenges worldwide. Large carnivores are frequently at the centre of these conflicts because of the perceived and real threats they pose to livestock and human safety.
Esperanza C. Iranzo   +10 more
wiley   +1 more source

High and dry: Environmental conditions drive opportunities for disease transmission in desert bighorn sheep

open access: yesJournal of Applied Ecology, Volume 63, Issue 7, July 2026.
By using probabilistic models to predict contacts as a function of spatially and temporally varying environmental conditions, we show that population‐level conditions at the time of disease introduction can structure opportunities for transmission within each population.
Diana K. Meza   +10 more
wiley   +1 more source

Seeing herbaria in a new light: leaf reflectance spectroscopy unlocks trait and classification modeling in plant biodiversity collections

open access: yesNew Phytologist, Volume 251, Issue 2, Page 811-829, July 2026.
Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White   +6 more
wiley   +1 more source

Tree stem methane emissions are regulated by site‐level biogeochemistry over species identity in Amazon floodplain forests

open access: yesNew Phytologist, Volume 251, Issue 1, Page 179-190, July 2026.
Summary Tree stems in Amazonian floodplains emit substantial methane (CH4), yet controls on emission variability remain unclear. Emissions span orders of magnitude between várzea (nutrient‐rich) and igapó (nutrient‐poor) forests and among trees, suggesting controls beyond flooding.
Holly R. Blincow   +9 more
wiley   +1 more source

Comportamento da relação hipsométrica de Araucaria angustifolia no capão da Engenharia Florestal da UFPR

open access: yesPesquisa Florestal Brasileira, 2010
Esta pesquisa teve como objetivos testar e selecionar os melhores modelos matemáticos para estimar a altura total (ht) e a altura de fuste (hf), em função do diâmetro à altura do peito (DAP), bem como estabelecer a relação dendrométrica entre ht/hf.
Sebastião do Amaral Machado   +6 more
doaj  

Tomada de decisão no mercado financeiro:

open access: yesRevista Eniac Pesquisa
O presente trabalho tem por objetivo realizar a previsão das séries temporais do Índice Bovespa (Ibovespa) utilizando os métodos de Redes Neurais Artificiais – RNA e Adaptive Neuro Fuzzy Inference Systems – ANFIS, tendo em vista a busca de alternativas a
José Willer do Prado   +3 more
doaj   +1 more source

Desenvolvimento e análise de um Protótipo Coilgun

open access: yesRevista Brasileira de Ensino de Física
O artigo descreve a construção e modelagem simples de um protótipo de pequenas dimensões de um Coilgun – arma eletromagnética que dispara um projétil metálico cuja operação se assemelha aos motores elétricos lineares, que também acionam fechaduras ...
Marcelo B. Perotoni, Mateus Mergl
doaj   +1 more source

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