Results 171 to 180 of about 222,937 (306)

Unrecognised ant megadiversity in the Australian monsoonal tropics: The Melophorus dicyrtos Heterick, Castalanelli and Shattuck complex

open access: yesBiological Diversity, EarlyView.
Here we show that the ant Melophorus dicyrtos from Australia's monsoonal (seasonal) tropics represents dozens of species. It is further documentation of undescribed ant hyperdiversity in the region, which appears to harbour the world's richest ant fauna.
Alan N. Andersen   +2 more
wiley   +1 more source

Rotation and Abundances of the Benchmark Brown Dwarf HD 33632 Ab from Keck/KPIC High-resolution Spectroscopy

open access: yesThe Astrophysical Journal
We present the projected rotational velocity and molecular abundances for HD 33632 Ab obtained via Keck Planet Imager and Characterizer (KPIC) high-resolution spectroscopy. HD 33632 Ab is a nearby benchmark brown dwarf companion at a separation of ∼20 au
Chih-Chun Hsu   +26 more
doaj   +1 more source

Hydroxyl radical enhanced carbon dots fluorescence quenching immunoassays for simultaneous detection of six kinds of antibiotics

open access: yesFood Bioengineering, Volume 1, Issue 3-4, Page 212-223, December 2022., 2022
A label‐free fluorescence quenching immunoassays using hydroxyl radical‐sensitive carbon dots as fluorescence probe was established for simultaneous extraction and highly sensitive detection of six wide‐spectrum antibiotics (nitrofuran metabolites, chloramphenicol, and florfenicol) in animal‐derived food.
Shijie Li   +5 more
wiley   +1 more source

Near-Infrared Spectral Classification of Late M and L Dwarfs [PDF]

open access: bronze, 2001
I. Neill Reid   +4 more
openalex   +1 more source

Candidates for Substellar Members of the Orion Nebula Cluster from JWST/NIRCam

open access: yesThe Astronomical Journal
In 2022, the James Webb Space Telescope (JWST) obtained 1–5 μ m images of the center of the Orion Nebula Cluster (ONC). I have analyzed these data in an attempt to search for substellar members of the cluster. Using a pair of color–color diagrams, I have
K. L. Luhman
doaj   +1 more source

NICS-TNG Low-Resolution 0.85–2.45 micron Spectra of L Dwarfs: A Near-Infrared Spectral Classification Scheme for Faint Dwarfs [PDF]

open access: bronze, 2001
L. Testi   +10 more
openalex   +1 more source

The Impact of Climate Change on the Income of Wine Producers in the Bordeaux Region

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT In the Bordeaux region, climate change has a very significant impact on wine production, with an increase in vineyard area, but a decrease in yield and income. We use a Ricardian approach to assess the magnitude of these changes. We combine very detailed individual, structural and financial data at the farm level with weather data to measure ...
Geoffroy Enjolras   +1 more
wiley   +1 more source

Analysis of Keck HIRES Spectra of Early L‐Type Dwarfs [PDF]

open access: bronze, 2001
A. Schweitzer   +4 more
openalex   +1 more source

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