Results 61 to 70 of about 48,990 (297)

Newly discovered brown dwarfs not seen in microlensing time scale frequency distribution? [PDF]

open access: yes, 1999
The 2-Micron All Sky Survey (2MASS) (Skrutskie et al. 1997) and the DEep Near Infrared Survey of the southern sky (DENIS) (Epchtein et al. 1997) have revealed a heretofore unknown population of free brown dwarfs that has extended the local mass function ...
S. J. Peale, Zhao H. S., Zhao H. S.
core   +4 more sources

Listening to Hong Kong children's perspectives through pretend play

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Quality in early childhood education and care (ECEC) has become an increasing concern in recent years. The issue has been regularly discussed by different stakeholders. However, the rising concern regarding quality in ECEC has not seriously taken into account children's perspectives.
Suzannie K. Y. Leung
wiley   +1 more source

Brown Dwarf Binaries [PDF]

open access: yesProceedings of the International Astronomical Union, 2011
AbstractNearly 500 brown dwarfs have been discovered in recent years. The majority of these brown dwarfs exist in the solar neighborhood, yet determining their fundamental properties (mass, age, temperature & metallicity) has proved to be quite difficult, with current estimates relying heavily on theoretical models.
openaire   +1 more source

Between public service and market: Portraying the bifront university in a platformized world

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This paper contributes to the international debate on the changes affecting recruitment and orientation processes toward higher education. Based on qualitative research involving 19 Italian public universities, the study analyses the transformations in communication, recruitment and orientation activities within platformization and increasing ...
Marco Pitzalis   +2 more
wiley   +1 more source

A Smooth Transition from Giant Planets to Brown Dwarfs from the Radial Occurrence Distribution

open access: yesThe Astronomical Journal
Measuring the occurrence rates of celestial objects is a valuable way to study their origins and evolution. Giant planets and brown dwarfs produce large Doppler signatures that are easily detectable by modern instrumentation, and legacy radial velocity ...
Judah Van Zandt   +5 more
doaj   +1 more source

The potential for Earth-mass planet formation around brown dwarfs

open access: yes, 2007
Recent observations point to the presence of structured dust grains in the discs surrounding young brown dwarfs, thus implying that the first stages of planet formation take place also in the sub-stellar regime.
Lodato, Giuseppe, Payne, Matthew J.
core   +1 more source

Sustainable Development Goals' Discourse in the Accounting and Business Literature: A Rhetorical Lens

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The role of academia in shaping the Sustainable Development Goals (SDGs) remains insufficiently understood. This study examines how SDG discourse is constructed within accounting and business research by integrating bibliometric analysis with a systematic review of 731 peer‐reviewed articles published between 2020 and 2024.
Silvia Panfilo   +2 more
wiley   +1 more source

Diversity of Cold Worlds: A Near-complete Spectral Energy Distribution for 2MASS J04151954−0935066 Using JWST

open access: yesThe Astrophysical Journal
We present a near-complete spectral energy distribution (SED) for an extrasolar world: the T8 brown dwarf 2MASS J04151954−0935066. Spanning from optical to mid-infrared (0.7–20.4 μ m) wavelengths, the SED for this substellar atmosphere is constructed ...
Sherelyn Alejandro Merchan   +27 more
doaj   +1 more source

Optimized Risk Assessment in Forensic Practice: A Comparison of Machine Learning and Manual Scoring Approaches

open access: yesBehavioral Sciences &the Law, EarlyView.
ABSTRACT As correctional jurisdictions and risk instrument developers look to optimize scoring for specific population needs, an open question remains ‐ which method is optimal. Popular scoring methods range from manual simple scoring approaches (e.g., Burgess) to more complex machine learning algorithms (e.g., random forests).
Danielle J. Rieger   +2 more
wiley   +1 more source

A New Brown Dwarf Orbiting an M Star and an Investigation of the Eccentricity Distribution of Transiting Long-period Brown Dwarfs

open access: yesThe Astrophysical Journal Letters
The orbital eccentricities of brown dwarfs encode valuable information on their formation and evolution history, providing insights into whether they resemble giant planets or stellar binaries.
Tianjun Gan   +34 more
doaj   +1 more source

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