Simulated emergence of cyclic sexual-asexual reproduction

Motivated by the cyclic pattern of reproductive regimes observed in some species of green flies (``{\it aphids}''), we simulate the evolution of a population enduring harsh seasonal conditions for survival. The reproductive regime of each female is also seasonal in principle and genetically acquired, and can mutate for each newborn with some small probability. The results show a sharp transition at a critical value of the survival probability in the winter, between a reproductive regime in the fall that is predominantly sexual, for low values of this probability, or asexual, for high values.Comment: 9 pages, 4 figures, requires RevTe

O Auto da Compadecida - A Dog's Will: an analysis of the translation of idioms in the English subtitle

TCC (Graduação) - Universidade Federal de Santa Catarina. Centro de Comunicação e Expressão. Letras Inglês.The objective of this study is to analyse the English subtitles of the Brazilian film O Auto da Compadecida – A Dog’s Will (Arraes, 2000) – in order to verify which strategies were used in the translation of idioms and fixed expressions. The choices of translation strategies were described based on concepts discussed within Translation Studies (TS). The results reveal that despite the technical constraints of subtitling, especially with regard to time and space, the translator managed to use strategies, albeit varied, that reproduced the idioms in the subtitles, which shows an understanding of the important role of these elements in the mood of the film. / / / Este trabalho tem como objetivo analisar as legendas em língua inglesa do filme brasileiro O Auto da Compadecida (Arraes, 2000) a fim de verificar quais estratégias foram utilizadas na tradução de expressões idiomáticas. As escolhas de estratégias de tradução foram descritas com base em conceitos discutidos no campo dos Estudos da Tradução. Os resultados revelam que apesar das limitações técnicas da legendagem, especialmente com relação ao tempo e espaço, o tradutor conseguiu usar estratégias, embora variadas, que reproduziram as expressões idiomáticas nas legendas, o que mostra uma compreensão do importante papel destes elementos no espírito do filme

Hyla multifasciata

Number of Pages: 4Integrative BiologyGeological Science

Fragmentation Experiment and Model for Falling Mercury Drops

The experiment consists of counting and measuring the size of the many fragments observed after the fall of a mercury drop on the floor. The size distribution follows a power-law for large enough fragments. We address the question of a possible crossover to a second, different power-law for small enough fragments. Two series of experiments were performed. The first uses a traditional film photographic camera, and the picture is later treated on a computer in order to count the fragments and classify them according to their sizes. The second uses a modern digital camera. The first approach has the advantage of a better resolution for small fragment sizes. The second, although with a poorer size resolution, is more reliable concerning the counting of all fragments up to its resolution limit. Both together clearly indicate the real existence of the quoted crossover. The model treats the system microscopically during the tiny time interval when the initial drop collides with the floor. The drop is modelled by a connected cluster of Ising spins pointing up (mercury) surrounded by Ising spins pointing down (air). The Ising coupling which tends to keep the spins segregated represents the surface tension. Initially the cluster carries an extra energy equally shared among all its spins, corresponding to the coherent kinetic energy due to the fall. Each spin which touches the floor loses its extra energy transformed into a thermal, incoherent energy represented by a temperature used then to follow the dynamics through Monte Carlo simulations. Whenever a small piece becomes disconnected from the big cluster, it is considered a fragment, and counted. The results also indicate the existence of the quoted crossover in the fragment-size distribution.Comment: 6 pages, 3 figure