G. G. F. Hegel

Rossi, Mario M.; Ruggiero, Guido De

doi:10.2307/2019487

Cited by 23 publications

(45 citation statements)

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“…Furthermore, in those left handers shown to have bilateral speech centres on intracarotid amylobarbitone tests (Rasmussen, 1971;Rossi, 1971), no stuttering was noted. It would thus appear that the aetiology of stuttering is more obscure than Jones's work suggests.…”

Section: Discussionmentioning

confidence: 94%

Stuttering: an investigation into cerebral dominance for speech

Andrews

Quinn

Sorby

1972

Journal of Neurology, Neurosurgery & Psychiatry

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SUMMARY Over the past decade research has suggested that stutterers have bilateral cerebral motor or auditory speech areas. Three typical adult stutterers showed normal unilateral left cerebral dominance for speech on the intracarotid sodium amylobarbitone (amytal) test, but one 'dysphatic' stutterer had bilateral cortical speech representation. The latter is a very rare finding in right handed individuals and presumably is a consequence of the head injury induced aphasia that preceded the onset of stuttering.Some 40o of children stutter, and while most subsequently remit, stuttering persists in about

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Section: Discussionmentioning

confidence: 94%

Stuttering: an investigation into cerebral dominance for speech

Andrews

Quinn

Sorby

1972

Journal of Neurology, Neurosurgery & Psychiatry

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“…The main purpose of the present work is to provide a simple model for the distribution of halo shapes at any given time as seen in the simulations, starting from first principles. Following Rossi (2008), our analytic prescription has two independent parts: the first is a scheme for how an initially spherical patch evolves and virializes; the second is the correct assignment of initial shapes to haloes of different masses.…”

Section: Introductionmentioning

confidence: 99%

Modelling the shapes of the largest gravitationally bound objects

Rossi

Sheth

Tormen

2011

Monthly Notices of the Royal Astronomical Society

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We combine the physics of the ellipsoidal collapse model with the excursion set theory to study the shapes of dark matter haloes. In particular, we develop an analytic approximation to the non-linear evolution that is more accurate than the Zeldovich approximation; we introduce a planar representation of halo axial ratios, which allows a concise and intuitive description of the dynamics of collapsing regions and allows one to relate the final shape of a halo to its initial shape; we provide simple physical explanations for some empirical fitting formulae obtained from numerical studies. Comparison with simulations is challenging, as there is no agreement about how to define a non-spherical gravitationally bound object. Nevertheless, we find that our model matches the conditional minor-to-intermediate axial ratio distribution rather well, although it disagrees with the numerical results in reproducing the minor-to-major axial ratio distribution. In particular, the mass dependence of the minor-to-major axis distribution appears to be the opposite to what is found in many previous numerical studies, where low-mass haloes are preferentially more spherical than high-mass haloes. In our model, the high-mass haloes are predicted to be more spherical, consistent with results based on a more recent and elaborate halo finding algorithm, and with observations of the mass dependence of the shapes of early-type galaxies. We suggest that some of the disagreement with some previous numerical studies may be alleviated if we consider only isolated haloes

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“…Addition of KC1 strongly inhibited Ca 2÷ binding in both mitbchondrial spaces. A similar inhibition of external Ca2*binding by K ÷ occurs in rat liver mitochondria but internal Ca 2÷ binding is inhibited by K + only in the presence of valinomycin or gramicidin [11,12]. However, corn mitochondria are passively permeable to external K ÷ in the absence of an ionophore [ 13] and internal Ca 2+ binding is presumably inhibited by spontaneously penetrating K ÷ ( fig.3).…”

Section: Resultsmentioning

confidence: 78%

The mechanism of K⁺‐stimulated exogenous NADH oxidation in plant mitochondria

Earnshaw

1975

FEBS Letters

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G. G. F. Hegel

Cited by 23 publications

References 0 publications

Stuttering: an investigation into cerebral dominance for speech

Stuttering: an investigation into cerebral dominance for speech

Modelling the shapes of the largest gravitationally bound objects

The mechanism of K⁺‐stimulated exogenous NADH oxidation in plant mitochondria

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G. G. F. Hegel

Cited by 23 publications

References 0 publications

Stuttering: an investigation into cerebral dominance for speech

Stuttering: an investigation into cerebral dominance for speech

Modelling the shapes of the largest gravitationally bound objects

The mechanism of K+‐stimulated exogenous NADH oxidation in plant mitochondria

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The mechanism of K⁺‐stimulated exogenous NADH oxidation in plant mitochondria