A game of simultaneous free entry and sequential output choices is analyzed. Firms enter simultaneously in stage 1 by paying a fixed cost, and they choose output levels sequentially in subsequent stages. At the subgame-perfect equilibrium of the game, the production level of a firm is decreasing with the order of the firm in the decision-making. The firm that is the last to choose output produc...

background and aim: tanacetum parthenium l. is herbaceous perennial medicinal plant belonging to the asteraceae family. feverfew is used as an analgesic, housing, fever-lowering, anti-rheumatism and migraines in traditional medicine. the most important active ingredient of the herb is essential oil. variation on genetic and environmental conditions play a major role in the growth, development, ...

In This Issue In This Issue Rabs make their way to mitochondria he large family of Rab GTPases has various functions, including the assembly of proteins required for endocytosis and membrane trafficking. Now, a new function for a Rab is emerging. On page 659, Alto et al. describe a Rab that affects mitochon-drial fission. This GTPase, Rab32, also has an unusual binding partner, the cAMP-depende...

Aggregators rely on votes, and links to select and present subsets of the large quantity of news and opinion items generated each day. Opinion and topic diversity in the output sets can provide individual and societal benefits, but simply selecting the most popular items may not yield as much diversity as is present in the overall pool of votes and links. In this paper, we define three diversit...

Multiple Classifier Systems (MCSs) have been widely used in the area of pattern recognition due to the difficult task that is to find a single classifier that has a good performance on a great variety of problems. Studies have shown that MCSs generate a large quantity of classifiers and that those classifiers have redundancy between each other. Various methods proposed to decrease the number of...

This study reports the relationship between the diversity and functioning of fungal and bacterial soil communities with vegetation in Mediterranean woodland that experienced severe die-off after a drought episode. Terminal restriction fragment length polymorfism (TRFLP) was used to describe microbial community structure and diversity five years after the episode in different habitats (Juniperus...

Aggregators rely on votes, and links to select and present subsets of the large quantity of news and opinion items generated each day. Opinion and topic diversity in the output sets can provide individual and societal benefits, but simply selecting the most popular items may not yield as much diversity as is present in the overall pool of votes and links. In this paper, we define three diversit...

arguments for the recognition of cultural diversity have led to a fundamental question in political theory: on what basis the process of political decision making should be formed to accommodate cultural diversity as a permanent feature of contemporary societies? the aim of this paper is to examine whether 'dialogue' can be employed as a means in such a process. the first section of this paper...

Pathogens have evolved diverse strategies to maximize their transmission fitness. Here we investigate these strategies for directly transmitted pathogens using mathematical models of disease pathogenesis and transmission, modeling fitness as a function of within- and between-host pathogen dynamics. The within-host model includes realistic constraints on pathogen replication via resource depleti...