3 settimane dopo ovariectomia le ghiandole mammarie di topine mostrano (i) nessuna modificazione del peso fresco, (ii) una velocità residua di incorporazione di uridina-[H] nello RNA del 20% e (iii) una velocità residua di incorporazione di leucina-[H] nelle proteine del 90%. Un singolo inoculo di 17--estradiolo in questi topi ovariectomizzati produce, durante le successive 17 ore, una serie di rapidi aumenti di incorporazione di uridina-[H] nello RNA della ghiandola mammaria; gli aumenti che sono...
In this paper, we derive and analyze a Reissner-Mindlin-like model for isotropic heterogeneous linearly elastic plates. The modeling procedure is based on a Hellinger-Reissner principle, which we modify to derive consistent models. Due to the material heterogeneity, the classical polynomial profiles for the plate shear stress are replaced by more sophisticated choices, that are asymptotically correct. In the homogeneous case we recover a Reissner-Mindlin model with as shear correction factor....
In this paper, we derive and analyze a Reissner-Mindlin-like model
for isotropic heterogeneous linearly elastic plates.
The modeling procedure is based on a Hellinger-Reissner principle,
which we modify to derive consistent models.
Due to the material heterogeneity, the classical polynomial profiles
for the plate shear stress are replaced by more sophisticated choices,
that are asymptotically correct.
In the homogeneous case we recover a Reissner-Mindlin model
with as shear correction factor....
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