Results 11 to 20 of about 7,467 (221)

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

IET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh, Khaled F. Hayajneh, Haythem Bany Salameh, Raed Al Athamneh, Yaser Jararweh   +4 more
wiley   +1 more source

White sharks (Carcharodon carcharias) scavenging on whales and its potential role in further shaping the ecology of an apex predator.

PLoS ONE, 2013
Scavenging, a result of a temporary pulse of resources, occurs in virtually all ecosystems containing carnivores, and is an important energy transfer pathway that can impact ecosystem structure and function, and this ecological significance has largely ...
Chris Fallows, Austin J Gallagher, Neil Hammerschlag   +2 more
doaj   +1 more source

An observation of white whale (Delphinapterus leucas) mating behaviour in the wild

Polar Research, 2023
Herein we describe mating behaviour observed in a group of 20 white whales in Svalbard, Norway. A single female was the centre of attention during the 45-minute encounter, which was observed, photographed and videotaped at an ice edge in Storfjorden in ...
Christian Lydersen, Kerstin Langenberger, Kit M. Kovacs   +2 more
doaj   +1 more source

Abundance of whales in West and East Greenland in summer 2015

NAMMCO Scientific Publications, 2019
An aerial line transect survey of whales in West and East Greenland was conducted in August-September 2015. The survey covered the area between the coast of West Greenland and offshore (up to 100 km) to the shelf break.
Rikke Guldborg Hansen, Tenna K. Boye, Rasmus S. Larsen, Nynne H. Nielsen, Outi Tervo, Rasmus D. Nielsen, Marianne H. Rasmussen, Mikkel H. S. Sinding, Mads Peter Heide-Jørgensen   +8 more
doaj   +1 more source

“Ego non baptizo te in nomine patris...”: On the Fantastic / Supernatural / Demoniac in Melville’s Novel Moby Dick [PDF]

Литература двух Америк, 2020
The paper addresses the theme of the fantastic in Melville’s Moby Dick, or The White Whale. Its importance is underscored in the writer’s letter to Hawthorne, where he mentioned the secret motto of the book, namely, the presence of the demoniac.
Elvira Ph. Osipova
doaj   +1 more source

Analysis of sightings of white sharks in Gansbaai (South Africa)

The European Zoological Journal, 2021
In Gansbaai (South Africa), at Dyer Island Nature Reserve, a large White shark population is present and can be observed due to the support of local ecotourism operators authorised to reach the field observation sites.
P. Micarelli, D. Bonsignori, L. J. V. Compagno, A. Pacifico, C. Romano, F. R. Reinero   +5 more
doaj   +1 more source

Dynamic Habitat Models Reflect Interannual Movement of Cetaceans Within the California Current Ecosystem

Frontiers in Marine Science, 2022
The distribution of wide-ranging cetacean species often cross national or jurisdictional boundaries, which creates challenges for monitoring populations and managing anthropogenic impacts, especially if data are only available for a portion of the ...
Elizabeth A. Becker, Elizabeth A. Becker, Karin A. Forney, Karin A. Forney, David L. Miller, Jay Barlow, Lorenzo Rojas-Bracho, Jorge Urbán R, Jeff E. Moore   +8 more
doaj   +1 more source

WHITE WHALE

RAUDEM. Revista de Estudios de las Mujeres, 2020
White Whale. A short Story by Katrina Kell.
openaire   +2 more sources

An experimental study of postmortem ocular fluid and core temperature analysis in incidentally captured harbour porpoise (Phocoena phocoena)

NAMMCO Scientific Publications, 2003
Determination of elapsed time since death in small cetaceans can be important to our understanding of the nature of their interactions with fishing operations.
C Hood, P-Y Daoust, J Lien, C Richter
doaj   +1 more source

Microbiome structure in large pelagic sharks with distinct feeding ecologies

Animal Microbiome, 2022
Background Sharks play essential roles in ocean food webs and human culture, but also face population declines worldwide due to human activity. The relationship between sharks and the microbes on and in the shark body is unclear, despite research on ...
Zoe A. Pratte, Cameron Perry, Alistair D. M. Dove, Lisa A. Hoopes, Kim B. Ritchie, Robert E. Hueter, Chris Fischer, Alisa L. Newton, Frank J. Stewart   +8 more
doaj   +1 more source