Results 101 to 110 of about 111,392 (348)

On the properties of discs around accreting brown dwarfs

open access: yes, 2010
We present a grid of models of accreting brown dwarf systems with circumstellar discs. The calculations involve a self-consistent solution of both vertical hydrostatic and radiative equilibrium along with a sophisticated treatment of dust sublimation. We
Allen   +95 more
core   +1 more source

Geochronology of the Whittlesey sedimentary succession, eastern England: The ‘Pompeii’ of the British late Middle Pleistocene to Holocene record

open access: yesJournal of Quaternary Science, EarlyView.
Abstract The sedimentary succession at Whittlesey preserves a unique British late Middle Pleistocene to Holocene record back to a time equivalent to at least marine oxygen isotope stage 8 (ca. 250 ka). This study builds on previously published sedimentology, geochronology and palaeoecology results to establish 20 sedimentary facies associations, with ...
H. E. Langford   +3 more
wiley   +1 more source

The Trigonometric Parallax of the Brown Dwarf Planetary System 2MASSW J1207334-393254

open access: yes, 2007
We have measured a trigonometric parallax to the young brown dwarf 2MASSW J1207334-393254. The distance [54.0 (+3.2,-2.8) pc] and space motion confirm membership in the TW Hydrae Association. The primary is a ~25 M_jup brown dwarf.
John E. Gizis   +4 more
core   +1 more source

Reducing response bias in reports of trauma and posttraumatic stress disorder: An application of the nonverbal response card in a survey of youth in Burkina Faso

open access: yesJournal of Traumatic Stress, EarlyView.
Abstract Response bias for sensitive questions in face‐to‐face interviewer‐administered surveys is a common problem. Our objective was to evaluate the effectiveness of the nonverbal response card (NVRC) in soliciting responses to questions about lifetime trauma exposure and posttraumatic stress disorder (PTSD) symptoms.
David P. Lindstrom   +4 more
wiley   +1 more source

Convergence Deficits in Myoclonus‐Dystonia Point to Cerebellar Impairment

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Myoclonus‐dystonia (M‐D) is a monogenic movement disorder, with proposed cerebellar dysfunction. Vergence eye movement deficits, characteristics of degenerative cerebellar disease, have not been studied in M‐D. Cerebellar transcranial alternating current stimulation (tACS) is considered a potential therapeutic approach.
Skadi Gerkensmeier   +13 more
wiley   +1 more source

The missing woodland story: Implications of 1700 years of stand‐scale change on ‘naturalness’ and managing remnant broadleaved woodlands

open access: yesPeople and Nature, EarlyView.
Abstract Longer‐term perspectives—equivalent to the lifespans of long‐lived trees—are required to fully inform perceptions of ‘naturalness’ used in woodland conservation and management. Stand‐scale dynamics of an old growth temperate woodland are reconstructed using palaeoecological data.
Annabel Everard   +4 more
wiley   +1 more source

The search for planetary mass companions to field brown dwarfs with HST/NICMOS

open access: yes, 2010
We present the results of a high-resolution spectral differential imaging survey of 12 nearby, relatively young field L dwarfs ( 0.8 confirm the preference for equal mass systems similar to a large number of other surveys. Furthermore, we found tentative
Bouy, H.   +6 more
core   +1 more source

Precise Mass, Orbital Motion, and Stellar Properties of the M-dwarf Binary LP 349−25AB

open access: yesThe Astrophysical Journal
LP 349−25 is a well-studied close stellar binary system comprised of two late M dwarf stars, where both stars are close to the limit between star and brown dwarf. This system was previously identified as a source of gigahertz radio emission.
Salvador Curiel   +3 more
doaj   +1 more source

Extending the Canada-France Brown Dwarf Survey to the near infrared

open access: yesEPJ Web of Conferences, 2011
We present the first results of the Canada-France Brown Dwarfs Survey-InfraRed, hereafter CFBDSIR, our near infrared extension to the optical wide field survey CFBDS.
Bertin E.   +8 more
doaj   +1 more source

Some love them, others hate them: Understanding farmers' tree planting decisions in Scotland

open access: yesPeople and Nature, EarlyView.
Abstract Agroforestry is increasingly recognized as a sustainable agricultural land use system with potential to sequester carbon, create and repair habitats, enhance biodiversity and offer environmental and socio‐economic benefits, including improved agricultural productivity.
Albert Mvula, Katrin Prager, Josie Geris
wiley   +1 more source

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