A 27-year-old asymptomatic woman was investigated for an abnormal finding in the cardiac contour on routine chest radiography. Echocardiography revealed a heterogeneous mass in the anterolateral left ventricular wall. Excision of the tumor disclosed an absence of communication between the residual cavity and the left ventricular endocardium. Histological features of the tumor indicated an intramural myxoma.

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We study the effect from a general ultralocal supermetric on primordial nucleosynthesis for Friedmann-Robertson-Walker Cosmology. The parameter λ of the supermetric changes the effective number of degrees of freedom, g * , which modifies the Friedmann equation. This modification produces variations in the production of primordial 4 He. The observations of the primordial abundances of light elements ( 4 He, D, 3 He and 7 Li) allow to estimate bounds on the values of λ consistent with these observations. We obtain 0.87 ≤ λ ≤ 1.04. In addition we analyze the importance of λ < 1 to explain possible incompatibilities in the standard Big-Bang nucleosynthesis.

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