In a heterogeneous society with two social groups possessing competing social norms, members of the relatively worse-off group face an incentive to adopt the social norms of the better-off group and assimilate into it. I present a theory in which the cost of assimilation is endogenous and strategically chosen by the better-off group in order to screen those who wish to assimilate. In equilibriu...

Abstract Focusing on EU countries, we analyze the influence of immigration flows demand for different aggregate categories final consumption goods. Using cross-country heterogeneity in and preference structures, find that when people move from a country to another, sectoral preferences characterizing origin affect structure host country. Furthermore, evidence transmission mechanism is reinforce...

Plants assimilate inorganic sulphate for the bio­ synthesis of sulphur containing compounds. The enzymes required for reduction are found pre­ dominantly in the plastids which provide the necessary energy and the reductants. Sulphate re­ duction like nitrate or carbon dioxide assimilation is endergonic; for comparison, N 0 3 reduction to ammonia requires +347 kJ mol1 and C 0 2 re­ duction +478 ...

The anatomy of normal maize (Zea mays L.) ears precludes easy access to the kernel pedicel tissue for in vivo assimilate transport experiments. We investigated the possibility of using the Tassel·seed (Ts·51 mutant of maize as a model system for studies of assimilate movement into developing maize kernels. Hypodermic needles (26 gauge, 9.5 mm long) inserted under the pedicel epidermis of intact...

Formaldehyde (HCHO) is an air pollutant suspected of being carcinogenic and a cause of sick-house syndrome. Microorganisms called methylotrophs, which can utilize reduced C(1) compounds such as methane and methanol, fix and assimilate HCHO, whereas most plants are unable to assimilate HCHO directly. We found that a bacterial formaldehyde-fixing pathway (ribulose monophosphate pathway) can be in...

The aim of the paper is to report on the perception of Estonian vowel categories by L2 learners of Estonian whose L1 is Russian. The Estonian vowel system includes nine vowels whereas Russian has six. Five of the Estonian vowels have counterparts in Russian: /i/, /e/, /u/, /o/ and /a/, the new vowel categories for L2 speakers are /ü/, /ö/, /ä/, and partly /õ/. For the perceptual experiments fou...