Results 81 to 90 of about 100,030 (223)

On the First Anthropic Argument in Astrobiology

open access: yes, 2003
We consider the little-known anthropic argument of Fontenelle dealing with the nature of cometary orbits, given a year before the publication of Newton's Principia.
Cirkovic, Milan M.
core   +1 more source

Spectral properties of the largest asteroids associated with Taurid Complex [PDF]

open access: yes, 2014
We obtained spectra of six of the largest asteroids (2201, 4183, 4486, 5143, 6063, and 269690) associated with Taurid complex. The observations were made with the IRTF telescope equipped with the spectro-imager SpeX.
Birlan, M.   +4 more
core   +3 more sources

Complex interactions in ant–plant mutualisms: The role of multiple ant food resources in mediating plant defence, pollination and fitness in a tropical shrub

open access: yesEcological Entomology, Volume 50, Issue 6, Page 1137-1147, December 2025.
Our results show that ants reduced leaf herbivory on plants offering both EFN and trophobiotic insects. Although ants did not directly affect pollinator behaviour, leaf herbivory in plants hosting treehoppers indirectly influenced pollination by reducing both visit duration and frequency.
Vitor Miguel Costa‐Silva   +5 more
wiley   +1 more source

A produtividade digital dos torcedores de futebol brasileiros: formatos, motivações e abordagens

open access: yesRevista Contracampo, 2015
O objetivo deste texto é analisar a produtividade digital dos torcedores de futebol brasileiros. A partir de entrevistas em profundidade e análise do material produzido por torcedores de um clube específico, o Clube Atlético Mineiro, o artigo investiga ...
Ana Carolina Vimieiro
doaj   +1 more source

Bract size affects resource availability and fruit set in a hummingbird‐pollinated plant with distyly polymorphism

open access: yesPlant Biology, Volume 27, Issue 7, Page 1478-1487, December 2025.
In Psychotria poeppigiana, larger bracts honestly signal greater nectar availability but have higher mortality, while smaller bracts produce more fruit, revealing a surprising trade‐off and hints of sexual role specialization in this distylous species. Abstract Plants can use non‐floral signals to advertise the presence of resources to pollinators. The
R. Trevizan   +4 more
wiley   +1 more source

Quantifying Serpentinization‐Driven Remagnetization From Ridge Axis to Subduction Zone Using Quantum Diamond Microscopy

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Diachronous ferromagnetic (sensu lato) mineral populations are often juxtaposed on micrometer‐to‐millimeter scales. This poses significant challenges for extracting reliable paleomagnetic information because standard methods measure bulk magnetic moments and cannot distinguish between magnetic minerals with overlapping demagnetization spectra.
Liang Qi   +6 more
wiley   +1 more source

Variability in Proto-Planetary Nebulae: I. Light Curve Studies of 12 Carbon-Rich Objects

open access: yes, 2009
We have carried out long-term (14 years) V and R photometric monitoring of 12 carbon-rich proto-planetary nebulae. The light and color curves display variability in all of them. The light curves are complex and suggest multiple periods, changing periods,
Alcock   +54 more
core   +1 more source

A leitura de contos como recurso didático para a formação do leitor em Clube do Livro a partir da Pedagogia Histórico-Crítica = Reading tales as teaching method for the Club Reader based on Historical-Critical Pedagogy

open access: yesRevista Educação Por Escrito, 2018
O presente artigo trata de uma proposta de intervenção pedagógica em escola pública estadual do Ceará por meio da elaboração e execução de um clube de leitura intitulado Clube do Livro.
Pereira, Karla Raphaella Costa   +2 more
doaj  

Envolvimento dos Torcedores de Futebol nas Redes Sociais, Satisfação e Intenções Comportamentais

open access: yesLicere, 2019
Esta tese teve como objetivo compreender o envolvimento dos torcedores de futebol nas redes sociais e o seu efeito na satisfação e nas intenções comportamentais.
Thiago de Oliveira Santos
doaj  

The Tapanui region of New Zealand: Site of a Tunguska around 800 years ago? [PDF]

open access: yes
Evidence is discussed that the wide-spread fires ca. 800 years ago which denuded the southern provinces of the South Island of New Zealand of the extensive forests present at that time were due to the entry of a large bolide into the atmosphere, the ...
Snow, Peter, Steel, Duncan
core   +1 more source

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