Results 121 to 130 of about 69,295 (229)
Bounded fitness landscapes and the evolution of the linguistic diversity
A simple spatial computer simulation model was recently introduced to study the evolution of the linguistic diversity. The model considers processes of selective geographic colonization, linguistic anomalous diffusion and mutation.
Abrams +21 more
core +1 more source
The pollinators and breeding system of two species of Vellozia (Velloziaceae) from high-altitude quartzitic grasslands in SE Brazil were studied. Vellozia leptopetala is shrubby and grows solely on rocky outcrops, V. epidendroides is herbaceous and grows on stony soils.
Claudia Maria Jacobi +1 more
openaire +1 more source
Operational and Technical Updates to the Object Reentry Survival Analysis Tool [PDF]
The Object Reentry Survival Analysis Tool (ORSAT) has been used in the NASA Orbital Debris Program Office for over 25 years to estimate risk due to uncontrolled reentry of spacecraft and rocket bodies.
Bacon, J. +8 more
core +1 more source
Upper tropospheric ozone production from lightning NOx-impacted convection: Smoke ingestion case study from the DC3 campaign [PDF]
©2015. American Geophysical Union. All Rights Reserved. As part of the Deep Convective Cloud and Chemistry (DC3) experiment, the National Science Foundation/National Center for Atmospheric Research (NCAR) Gulfstream-V (GV) and NASA DC-8 research aircraft
Apel, EC +27 more
core +1 more source
VULNERABILIDADE DA VEGETAÇÃO DE CAMPOS DE ALTITUDE ÀS MUDANÇAS CLIMÁTICAS
Mayara Vescovi Assis +1 more
openaire +2 more sources
O presente trabalho visa à identificação e caracterização das espécies da subtribo Laeliinae (Orchidaceae) ocorrentes no Parque Nacional do Caparaó, localizado na Serra do Caparaó, na divisa dos Estados de Minas Gerais e Espírito Santo, sendo sua ...
Wellington Forster +1 more
doaj +1 more source
Passifloraceae sensu stricto no Parque Estadual da Serra do Brigadeiro, Minas Gerais, Brasil
Resumo O presente estudo visou inventariar a diversidade taxonômica da família Passifloraceae sensu stricto no Parque Estadual da Serra do Brigadeiro (PESB), Minas Gerais e investigar os aspectos ecológicos relacionados à distribuição, estado de ...
Andreza Magro Moraes +2 more
doaj +1 more source
A hipótese do presente estudo é a de que diferentes metodologias de avaliação da aptidão agrícola dos solos podem resultar em diagnósticos diferenciados para a mesma área.
Denilson Dortzbach +3 more
doaj
MELASTOMATACEAE NO PARQUE NACIONAL DO ITATIAIA, SUDESTE DO BRASIL: TRIBOS BERTOLONIEAE E MERIANIEAE
RESUMO Realizou-se o estudo taxonômico de Melastomataceae, tribos Bertolonieae e Merianieae, no Parque Nacional do Itatiaia , situado entre os limites dos estados do Rio de Janeiro e Minas Gerais.
Felipe Fajardo Villela A. Barberena +2 more
doaj +1 more source
Emissions of Volatile Organic Compounds Inferred From Airborne Flux Measurements over a Megacity [PDF]
Toluene and benzene are used for assessing the ability to measure disjunct eddy covariance (DEC) fluxes of Volatile Organic Compounds (VOC) using Proton Transfer Reaction Mass Spectrometry (PTR-MS) on aircraft.
Apel, E +6 more
core +1 more source

