Results 1 to 10 of about 1,173,515 (384)
A new species of Notacanthella Jacobus & McCafferty, 2008 (Ephemeroptera, Ephemerellidae) from Yunnan, China [PDF]
ZooKeys, 2022 Notacanthella jinwu Li & Jacobus, sp. nov. is described based on egg, nymph, and winged stages from Dali Bai Autonomous Prefecture, Yunnan Province, China. The nymph of the new species is closely related to N.
Xian-Fu Li +4 more
doaj +3 more sources
A new species of Siphlonurus Eaton, 1868 (Ephemeroptera, Siphlonuridae) from Yunnan, China [PDF]
ZooKeys, 2023 Siphlonurus dongxi Li & Tong, sp. nov. from Shangri-La City, Yunnan Province, China, is described based on egg, nymph, and winged stages. The new species is closely related to S. davidi (Navás, 1932), and can be distinguished by the colour of the
Kun Yang +3 more
doaj +3 more sources
Metabolomic Analysis of Hexagenid Mayflies Exposed to Sublethal Concentrations of Naphthenic Acid
Frontiers in Molecular Biosciences, 2021 The oil sands region in northeastern Alberta, Canada contain approximately 165 billion barrels of oil making it the third largest oil reserves in the world.
Sarah M. Pomfret +3 more
doaj +1 more source
Environmental Sciences Europe, 2023 Background Several large-scale studies revealed impacts and risks for aquatic communities of small rural lakes and streams due to pesticides in agricultural landscapes.
Silvia Mohr +5 more
doaj +1 more source
The Many Streams of the Magellanic Stream [PDF]
The Astrophysical Journal, 2008 AbstractAs a part of the ongoing H i survey by the consortium for Galactic studies with the Arecibo L-band Feed Array (GALFA-HI), we have recently imaged the tip of the MS and found several long filamentary structures. This demonstrates that the northern portion of the MS, which has been interacting with the Galactic halo for a long time, is more ...
Snezana Stanimirovic +5 more
openaire +6 more sources
RMLStreamer-SISO: an RDF stream generator from streaming heterogeneous data [PDF]
The Semantic Web - ISWC 2022, 2022 Stream-reasoning query languages such as CQELS and C-SPARQL enable query answering over RDF streams. Unfortunately, there currently is a lack of efficient RDF stream generators to feed RDF stream reasoners. State-of-the-art RDF stream generators are limited with regard to the velocity and volume of streaming data they can handle.
arxiv +1 more source
Symposium - International Astronomical Union, 1974 A southern sky survey of H I in the velocity range — 340 km s−1 to +380 km s−1 has shown that a long filament of H I extends from the Small Magellanic Cloud (SMC) region down to the South Galactic Pole and connects with the long H I filament discovered recently by Wannier and Wrixon (1972) and van Kuilenburg (1972). There is also some evidence that the
D. S. Mathewson +2 more
openaire +4 more sources
Uniform Modelling of the Stellar Density of Thirteen Tidal Streams within the Galactic Halo [PDF]
, 2022 We present the results of fitting a flexible stellar stream density model to a collection of thirteen streams around the Milky Way, using photometric data from DES, DECaLS, and Pan-STARRS. We construct density maps for each stream and characterise their tracks on the sky, width, and distance modulus curves along the length of each stream.
arxiv +1 more source
Acta Limnologica Brasiliensia, 2020 : Aim Describe the diversity of immature stages of Odonata (Insecta) in streams from a subtropical island in southern Brazil and investigate the influence of environmental variables on the composition of their assemblages.
Mateus Marques Pires +3 more
doaj +1 more source
Characterization of Stream Meanders for Stream Restoration [PDF]
Journal of Hydraulic Engineering, 1997 Recently increased emphasis and attention has been given to river management and restoration of modified streams. A variety of restoration techniques and objectives exist, including asymmetrical cross-section construction, point bar development, two-stage channel design, floodplain approaches, pools and riffles re-creation, and sinuosity and meander ...
RINALDI, MASSIMO, Johnson P. A.
openaire +3 more sources