Results 21 to 30 of about 12,853 (286)
Frequency Analysis of Functionally Graded Carbon Nanotube-reinforced Cylindrical Panels by Mesh-free Galerkin Method [PDF]
In this work, the three-dimensional mesh-free (3D-Mfree) method is used for free vibration analysis of functionally graded (FG) cylindrical panels reinforced by carbon nanotubes.
Jaber Alihemmati +3 more
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Value of species and the evolution of conservation ethics [PDF]
The theory of evolution by natural selection can help explain why people care about other species. Building upon recent insights that morality evolves to secure fitness advantages of cooperation, we propose that conservation ethics (moral beliefs ...
Darragh Hare +2 more
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Vibration Analysis of Different Types of Porous FG Conical Sandwich Shells in Various Thermal Surroundings [PDF]
Vibration behavior of different types of porous functionally graded (FG) conical sandwich shells are investigated based on a modified high order sandwich shells theory for the first time. Sandwich shell includes FG face sheets covering a homogeneous core
Mohsen Rahmani +3 more
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Limits of Hamilton's rule [PDF]
The evolution of cooperation is a fundamental problem in evolutionary biology. Over the last decades a wealth of models and mechanisms have been proposed for explaining how cooperators can thrive under Darwinian selection. At the same time, discussions of the conceptual connections between the different approaches have often been neglected.
M, Doebeli, C, Hauert
openaire +2 more sources
The inclusive fitness controversy: finding a way forward [PDF]
This paper attempts to reconcile critics and defenders of inclusive fitness by constructing a synthesis that does justice to the insights of both. I argue that criticisms of the regression-based version of Hamilton's rule, although they undermine its use
Jonathan Birch
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Two studies investigated whether perceived closeness of siblings, and aggression between siblings, were associated with genetic relatedness. In following Hamilton’s rule, we predicted that as the coefficient of relatedness between siblings increased ...
Roxanne Khan, Gayle Brewer, John Archer
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Hamilton's rule, inclusive fitness maximization, and the goal of individual behaviour in symmetric two-player games [PDF]
Hamilton's original work on inclusive fitness theory assumed additivity of costs and benefits. Recently, it has been argued that an exact version of Hamilton's rule for the spread of a pro-social allele (rb > c) holds under nonadditive pay-offs, so ...
Martens, Johannes, Okasha, Samir
core +1 more source
A novel quasi-3D hyperbolic shear deformation theory (QHSDT) with five unknowns is here employed, together with the Hamilton’s principle and the modified couple stress theory (MCST) to analyze the vibrational behavior of rectangular micro-scale sandwich ...
Hossein Arshid +4 more
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Generalisations of Hamilton's Rule Applied to Non-Additive Public Goods Games with Random Group Size
Inclusive fitness theory has been described as being limited to certain special cases of social evolution. In particular some authors argue that the theory can only be applied to social interactions having additive fitness effects, and involving only ...
James A R Marshall
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Evolutionary Influences on Assistance to Kin: Evidence from the Panel Study of Income Dynamics
Amid the changes that have diversified family life, studies have shown the continuing importance of attachment to kin through established patterns such as ties among full siblings and newer patterns such as efforts by donor-conceived individuals to find ...
Andrew J. Cherlin
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