Results 1 to 10 of about 1,415,071 (353)

A new species of Notacanthella Jacobus & McCafferty, 2008 (Ephemeroptera, Ephemerellidae) from Yunnan, China [PDF]

open access: yesZooKeys, 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]

open access: yesZooKeys, 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

open access: yesFrontiers 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

Algal study in springs and streams from Shaqlawa district, Erbil Province, Iraq I- Euglenophyta

open access: yesمجلة بغداد للعلوم, 2022
In an intensive study of the various species of the Euglenophyceae under different environmental conditions, the algal samples were collected monthly in twelve springs and six related streams from September 2019 to August 2020 within Shaglawa district ...
Janan Jabbar Toma, Farhad Hassan Aziz
doaj   +1 more source

Effects of a realistic pesticide spraying sequence for apple crop on stream communities in mesocosms: negligible or notable?

open access: yesEnvironmental 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

Suitability Assessment of Fish Habitat in a Data-Scarce River

open access: yesHydrology, 2022
Assessing fish habitat suitability in a data-scarce tidal river is often challenging due to the absence of continuous water quantity and quality records.
Aysha Akter   +2 more
doaj   +1 more source

The Many Streams of the Magellanic Stream [PDF]

open access: yesThe 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

The influence of socioeconomic and spatial variables on total maximum daily load progress in the United States

open access: yesWater Policy, 2023
The total maximum daily load (TMDL) program requires each state in the United States to assess their water bodies, list those that are impaired, and develop TMDL plans or programs to restore them.
Charitha Gunawardana, Walter McDonald
doaj   +1 more source

The Magellanic Stream [PDF]

open access: yesSymposium - 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

Duplicating RTP streams [PDF]

open access: yes, 2014
Packet loss is undesirable for real-time multimedia sessions but can occur due to a variety of reasons including unplanned network outages. In unicast transmissions, recovering from such an outage can be difficult depending on the outage ...
Begen, A., Perkins, C.
core   +1 more source

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