Horizontally propagating chemical fronts leading to the formation of a single stable convection roll are investigated in the iodate-arsenous acid reaction with arsenous acid stoichiometrically limiting, leaving the surface active iodine present in the product mixture. In sufficiently thin solution layers with open upper surface, the contribution of Marangoni instability is significantly enhanced. Acting in the same direction as buoyancy driven instability, it distorts the entire tilted reaction front that becomes 50% more elongated. The corresponding three-dimensional calculations based on the empirical rate-law of the reaction corroborate the experimental findings.

Conflict of laws rules can lead to foreign law as the applicable law. However, it is not always the case that the designated foreign law will be applied at the end. Actually, one of the main questions of private international law concerns the non-application of the foreign law determined by the conflict of law rules. This contribution examines the general part of the new Hungarian Private International Law act in this regard, that is when and how the new Hungarian act can lead to the non-application of the foreign law.

65 Lásd: ibid 31. pont 66 Lásd: ibid 31. pont, illetve az ott hivatkozott joggyakorlat: "the need in certain cases to adapt the products in question to the rules in force in the Member State in which they are marketed prevents the abovementioned requirements from being treated as selling arrangements", C-390/99. sz.

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