Results 81 to 90 of about 11,488 (329)

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

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

Placental crises: disruptive selection and maternal under‐investment as the foundations of mammalian placental evolution and dysfunction

Biological Reviews, EarlyView.
ABSTRACT Among the vertebrates, mammals are notable for the dominance of live birth and placental nutrition. The structural diversity of the mammalian placenta is remarkable, despite sharing a single common ancestor and conserved physiological functions.
Davis Laundon, Neil J. Gostling, Ian G. Reddin, Bram G. Sengers, Pascale Chavatte‐Palmer, Rohan M. Lewis   +5 more
wiley   +1 more source

The Evolution of Impression Management Research in Social Media: A Bibliometric Perspective

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The purpose of the present study is to investigate impression management (IM) usage by companies in the context of social media communication and emerging technologies through a comprehensive mapping of the scientific literature. In this matter, a bibliometric analysis has been conducted, extracting a sample of 262 peer‐reviewed journal ...
Antonio Iazzi, Amedeo Maizza, Simona Lamusta, Simone Pizzi   +3 more
wiley   +1 more source

Trends in marine species distribution models: a review of methodological advances and future challenges

Ecography, EarlyView.
Correlative species distribution models (SDMs) are quantitative tools in biogeography and macroecology. Building upon the ecological niche concept, they correlate environmental covariates to species presence to model habitat suitability and predict species distributions.
Moritz Klaassen, Tiago A. Marques, Filipe Alves, Marc Fernandez   +3 more
wiley   +1 more source

Operaciones balleneras de la INDUS en aguas Patagónicas: años iniciales (1936-1939) INDUS whaling operations in Patagonian waters: early years (1936-1939)

Magallania, 2012
En este trabajo nos interesa mostrar, desde una perspectiva antropológica e histórica, los inicios (1936-1939) de la Compañía Industrial S.A. (INDUS) como empresa ballenera, cuando la mayoría de sus operaciones se realizaban en aguas patagónicas.
DANIEL QUIROZ, PAULA DE LA FUENTE
doaj  

Between Whale Teeth and the Moral Uses of the Sea: Considering Religion in the US Whaling Industry’s Extractive Zone

Religions
This article argues that the nineteenth century US whaling industry provides an oceanic perspective on extractive zones that illuminates their multi-sited, multiscalar nature where the local and global are deeply entangled.
Richard J. Callahan
doaj   +1 more source

A historical Southern Ocean climate dataset from whaling ships’ logbooks

Geoscience Data Journal, 2019
Historical ship logbooks provide vital historic meteorological observations in the Southern Ocean, one of the largest climate‐data deficient regions on the Earth.
Praveen R. Teleti, W. G. Rees, Julian A. Dowdeswell, Clive Wilkinson   +3 more
doaj   +1 more source

Twenty years of dynamic occupancy models: a review of applications and look to the future

Ecography, EarlyView.
Since their introduction over 20 years ago, dynamic occupancy models (DOMs) have become a powerful and flexible framework for estimating species occupancy across space and time while accounting for imperfect detection. As their popularity has increased and extensions have further expanded their capabilities, DOMs have been applied to increasingly ...
Saoirse Kelleher, Gurutzeta Guillera-Arroita, Jane Elith, Natalie J. Briscoe   +3 more
wiley   +1 more source

Sealing, whaling and krill fishing in the Southern Ocean: past and possible future effects on catch regulations

Polar Record, 2016
This paper (1) reviews the history of sealing and whaling in the Southern Ocean to illustrate how market demands combined with no or ineffective regulation of catches led to the overexploitation and near extinction of southern fur seals, southern ...
R. Hofman
semanticscholar   +1 more source