Is sperm really so cheap? Costs of reproduction in male adders,Vipera berus

Is the Universe Really so Simple?

The intriguing recent suggestion of Tegmark that the universe—contrary to all our experiences and expectations—contains only a small amount of information due to an extremely high degree of internal symmetry is critically examined. It is shown that there are several physical processes, notably Hawking evaporation of black holes and non-zero decoherence time effects described by Plaga, as well a...

Is the p value really so significant?

Is drusen area really so important?

This letter is in reference to the article by Friberg et al. entitled ‘‘Is Drusen Area Really So Important?’’ The paper concludes that a larger drusen area does not necessarily increase an eye’s risk of conversion to choroidal neovascularization (CNV) (Table 1), which disagrees with the established evidence that a larger drusen area is associated with increased risk of CNV based on large cohort...

Is clinical neurology really so difficult?

Is the New Immigration Really So Bad?

Is the New Immigration Really So Bad? This paper reviews the recent evidence on U.S. immigration, focusing on two key questions: (1) Does immigration reduce the labor market opportunities of less-skilled natives? (2) Have immigrants who arrived after the 1965 Immigration Reform Act successfully assimilated? Looking across major cities, differential immigrant inflows are strongly correlated with...