Results 31 to 40 of about 123 (108)
Functional Morphology of the Scaphoid in Extant African Apes, Humans and Fossil Hominins
American Journal of Biological Anthropology, Volume 188, Issue 4, December 2025.ABSTRACT Objectives The morphology of the hominoid scaphoid has played a key role in functional and evolutionary hypotheses related to the emergence of hominin bipedalism and tool use. However, the scaphoid's complex morphology is challenging to comparatively analyze via traditional 2D linear measurements.
Nadine G. Steer +5 more
wiley +1 more source
Ion Reflection From the Martian Bow Shock
Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.Abstract We utilize Mars Atmospheric and Volatile EvolutioN (MAVEN) observations to study reflected ions upstream from the Martian bow shock. We conduct back‐tracing of trajectories to separate ions in velocity space and quantify the reflected ion characteristics.
J. S. Halekas +4 more
wiley +1 more source
Necessary conditions for a nonlinear control system [PDF]
, 1985 In this note it is proved that x(·) a boundary trajectory of a Lipschitz-continuous differential inclusion ẋ ϵ F(t, x), x(0) = 0, the tangent cone to F(t, x(t)) at ẋ(t) that of attainable set E(t) at x(t) coincide for almost every t provided that ∂F(t, x)
Suarez, R, Plís, A, Łojasiewicz, S
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Continuity of HYM connections with respect to metric variations
Journal of the London Mathematical Society, Volume 112, Issue 1, July 2025.Abstract We investigate the set of (real Dolbeault classes of) balanced metrics Θ$\Theta$ on a balanced manifold X$X$ with respect to which a torsion‐free coherent sheaf E$\mathcal {E}$ on X$X$ is slope stable. We prove that the set of all such [Θ]∈Hn−1,n−1(X,R)$[\Theta] \in H^{n - 1,n - 1}(X,\mathbb {R})$ is an open convex cone locally defined by a ...
Rémi Delloque
wiley +1 more source
Normality of necessary optimality conditions for calculus of variations problems with state constraints [PDF]
, 2019 We consider non-autonomous calculus of variations problems with a state constraint represented by a given closed set. We prove that if the interior of the Clarke tangent cone of the state constraint set is non-empty (this is the constraint ...
Lopes, S. O., Khalil, N.
core +1 more source
, 2021 Journal of Medical Radiation Sciences, Volume 68, Issue S1, Page 3-79, June 2021.
wiley +1 more source
On the validity of the transversality condition for different concepts of tangent cone to a set [PDF]
, 2008 In the nonsmooth versions of the Pontryagin Maximum Principle, the transversality condition involves a normal cone to the terminal set. General versions of the principle for highly non-smooth systems have been proved by separation methods for cases that ...
Héctor J. Sussmann
core
Excitatory Projections of Wide Field Collicular Neurons to the Nucleus of the Optic Tract in the Rat
Journal of Comparative Neurology, Volume 532, Issue 7, July 2024.We report a novel class of rat collicular neurons (SCWFNOT) with horizontally oriented and spiny‐rich dendrites in the retinorecipient superficial layers of the superior colliculus. This subpopulation of excitatory wide field neurons invariably project to the nucleus of the optic tract (NOT), and some of them express the calcium‐binding protein ...
Athanasia Tzanou +3 more
wiley +1 more source
Existence of Equilibria and Fixed Points of Set-Valued Mappings on Epi-Lipschitz Sets with Weak Tangential Conditions [PDF]
, 2020 We prove a new result of existence of equilibria for an u.s.c. set-valued mapping on a compact set of R which is epi-Lipschitz and satisfies a weak tangential condition. Equivalently this provides existence of fixed points of the set-valued mapping ( ) −
Messaoud Bounkhel
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