Giovambattista Amendola, Adele Manes (1986)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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In this work we prove that the thermoelastic equilibrium problem in the context of the linear theory for thermoelastic incompressible solids has one and only one solution.
Valerio Scali, Paolo Mosti (1975)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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Seven males of the stick insect B. rossius (out of the twenty collected on the Isola del Giglio in July 1974) have shown a chromosomal rearrangement of a definite kind in all the spermatogonia and spermatocytes I which could be analysed in spite of extensive stickiness. Five of them had a pericentric inversion affecting one of the medium sized autosomes (4 heterozygotes and 1 homozygote); this chromosomal rearrangement appears to be the same in the 5 specimens. For one of the heterozygotes...
Clara Silvia Roero, Tullio Viola (1981)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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This paper discusses from a historical standpoint the incomplete reasoning of Book I proposition 9 of Archimedes' On the sphere and cylinder and gives a proof, which only uses means available to Archimedes himself. This paper also discusses some demonstrations which, through the centuries, have been proposed to solve this problem. One of these is the previously unpublished proof by Jakob I Bernoulli, which is here reported, recently discovered at the Universitätsbibliothek of Basel. ...
Clara Silvia Roero, Tullio Viola (1981)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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This paper discusses from a historical standpoint the incomplete reasoning of Book I proposition 9 of Archimedes' On the sphere and cylinder and gives a proof, which only uses means available to Archimedes himself. This paper also discusses some demonstrations which, through the centuries, have been proposed to solve this problem. One of these is the previously unpublished proof by Jakob I Bernoulli, which is here reported, recently discovered at the Universitätsbibliothek of Basel. ...
Roberto Bertolani, Gian Piero Buonagurelli (1975)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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Having found no males during three years of breeding in Macrobiotus dispar the parthenogenesis has been demonstrated. The karyological examination has shown that M. dispar has a diploid meiotic and chiasmatic parthenogenesis and the restitutive process takes place at the beginning of the 2nd oocyte division.
Rocek, Martin
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Michele Carriero, Antonio Leaci, Eduardo Pascali (1982)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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In this paper we present a few results on convergence for the prime integrals equations connected with the bounce problem. This approach allows both to prove uniqueness for the one-dimensional bounce problem for almost all permissible Cauchy data (see also [6]) and to deepen previous results (see [3], [5], [7]).
Michele Carriero, Antonio Leaci, Eduardo Pascali (1982)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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In this paper we present a few results on convergence for the prime integrals equations connected with the bounce problem. This approach allows both to prove uniqueness for the one-dimensional bounce problem for almost all permissible Cauchy data (see also [6]) and to deepen previous results (see [3], [5], [7]).
Giancarlo Fava (1972)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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Laboratory populations of Tisbe clodiensis have been studied to provide information on the action of temperature on the fitness of some genotypes. All the populations were started with virgin females and males of the three genotypes (pp, pP, PP) at f(p) = 0.2 in agreement with Hardy-Weinberg distribution. Three of them were maintained at I5°C. and sampled at intervals of about 30 days, during a period of 273 days. Other populations have been kept at 18°C. and sampled at shorter intervals....
Barbara Lazzari, Antonio Scalia (1984)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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In this paper we prove that for elastic, isotropic, omogeneus materials for which the heat flux vector obey the relation of Cattaneo there is a unique continuously differentiable entropy function.
Barbara Lazzari, Antonio Scalia (1984)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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In this paper we prove that for elastic, isotropic, omogeneus materials for which the heat flux vector obey the relation of Cattaneo there is a unique continuously differentiable entropy function.
Rosa Maria Corbo (1979)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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We studied a 22 months-old girl with severe selective T-cell deficiency and no measurable purine nucleoside phosphorylase activity in the RBC and granulocytes. No inhibitor was found in the patient's erythrocytes. Her parents are second cousins and their red cells exhibited about half the normal level of NP activity. The identification of heterozygotes within a three generation pedigree confirms that PNP deficiency is inherited as a mendelian autosomal trait and that erythrocytes can...
Luigi Amerio (1965)
Bollettino dell'Unione Matematica Italiana
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Marisa Leonardi Cigada, Fiorenza Laria De Bernardi, Anna Maria Scarpetti Bolzern (1975)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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An analysis of RNA and protein synthesis has been carried out on Xenopus laevis embryos, cut into two portions, during the early stages of their development. Actinomycin D was employed to inhibit the synthesis. The action of actinomycin on synthesis is stronger during gastrulation than during neurulation. In each stage a correlation between RNA synthesis inhibition and protein synthesis inhibition has been observed. In the ventral fragments of the neurula the ratio between the two inhibitions...
Sergio Bressan (1984)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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According to a thermodynamic theory proposed by G. Grioli, we consider the problem of determining the solutions for the growth of acceleration waves in an elastic body. At first we determine a property of the velocities of waves propagation and we determine some limitations for the free energy; then we resolve the above mentioned problem for the «small» waves working on the iperacceleration waves.
Sergio Bressan (1984)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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According to a thermodynamic theory proposed by G. Grioli, we consider the problem of determining the solutions for the growth of acceleration waves in an elastic body. At first we determine a property of the velocities of waves propagation and we determine some limitations for the free energy; then we resolve the above mentioned problem for the «small» waves working on the iperacceleration waves.
Sergio Bressan (1984)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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According to a thermodynamic theory proposed by G. Grioli, we consider the problem of determining the solutions for the growth of acceleration waves in an elastic body. At first we determine a property of the velocities of waves propagation and we determine some limitations for the free energy; then we resolve the above mentioned problem for the «small» waves working on the iperacceleration waves.
Sergio Bressan (1984)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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According to a thermodynamic theory proposed by G. Grioli, we consider the problem of determining the solutions for the growth of acceleration waves in an elastic body. At first we determine a property of the velocities of waves propagation and we determine some limitations for the free energy; then we resolve the above mentioned problem for the «small» waves working on the iperacceleration waves.
Dionigi Galletto, Bruno Barberis (1985)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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Starting from the considerations developed in [4], it is shown that the only forces at a distance exerted among the elements of an isolated spherical cluster of incoherent matter which, preserving homogeneity, is collapsing are those expressed by Newton's law of gravitation and those of the elastic type. Furthermore the reverse is shown, that is if the forces at a distance are of these two types during the collapse the homogeneity is preserved.
Dionigi Galletto, Bruno Barberis (1985)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
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Starting from the considerations developed in [4], it is shown that the only forces at a distance exerted among the elements of an isolated spherical cluster of incoherent matter which, preserving homogeneity, is collapsing are those expressed by Newton's law of gravitation and those of the elastic type. Furthermore the reverse is shown, that is if the forces at a distance are of these two types during the collapse the homogeneity is preserved.
Archangelskij, A. V.
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