Results 181 to 190 of about 175,042 (331)

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

The Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Immune Modulation in the Tumor Microenvironment: Bifurcation Analysis of Cancer-CTL-Monocyte Dynamics. [PDF]

Bull Math Biol
Hernandez-Lopez E, Milne R, Wang X.
europepmc   +1 more source

ON THE HOPF BIFURCATION AND EQUILIBRIUM POINTS OF PARTIAL BENEFIT SYMBIOSIS OF FINANCIAL MARKET USING DELAY DIFFERENTIAL EQUATIONS

DONGSHENG LI, ­ Dipesh, Sibel Paşalı Atmaca, PANKAJ KUMAR   +3 more
openalex   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

The Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

A fractional-order approach to predator-prey interactions: Modeling fear and disease dynamics with memory effects. [PDF]

PLoS One
Rahmi E, Anggriani N, Panigoro HS, Peter OJ.   +3 more
europepmc   +1 more source

BIFURCATIONS OF PERIODIC OSCILLATIONS IN THE VICINITY OF LIBRATION POINTS OF A THREE-BODY PROBLEM [PDF]

, 2018
N. R. Isanbaeva
openalex   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Nonlinear stability and vibration of flexible spacecraft solar arrays under thermally induced flutter during the penumbra phase. [PDF]

Sci Rep
Motaharifard O, Daneshjou K, Bakhtiari M.   +2 more
europepmc   +1 more source

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

The Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa, Marcos Vinícius Coelho, Camila Cupello   +2 more
wiley   +1 more source

Competing chemical gradients change chemotactic dynamics and cell distribution. [PDF]

Phys Rev E
Perez Ipiña E, Camley BA.
europepmc   +1 more source