Nothing Gold Can Stay

Can Anything Emerge from Nothing?

Incomplete Nature is about an important and difficult subject: how life and mind evolved from a world of inanimate matter. It is also about what are the right concepts to use in understanding the nature and workings of life and mind. We need to be able to conceive them in such a way that it becomes intelligible that they could have arisen naturally from the kinds of inanimate processes describe...

Can the Gold Coin Futures Prices Forecast the Gold Coin Spot Prices at the Maturity Date?

This paper examines whether the gold coin futures prices in the Iran Mercantile Exchange can forecast accurately the gold coin spot prices at the maturity date. For this, it uses daily data of both futures and spot prices from Azar 1387 to Tir 1397. A cointegration analysis shows that in horizons shorter than 100 days, there is a significant one-to-one relation between these two prices which im...

Trichomonas vaginalis infection: can we afford to do nothing?

For more than a century following its initial description in 1836, Trichomonas vaginalis was considered to be either a harmless vaginal colonizer or simply a minor nuisance [1]. This view may have been sustained by the observation that women with trichomoniasis vaginalis were usually either asymptomatic or had only mild symptoms. More recently, it has been recognized that T. vaginalis infection...

“Not Everything That Is Faced Can Be Changed, but Nothing Can Be Changed Until It Is Faced”: A Response to Recent Commentaries

Modelling perspectives on aging: can mathematics help us stay young?

We survey several types of mathematical models that keep track of age distributions in a population, or follow some aspects of aging, such as loss of replicative potential of stem cells. The properties of a class of linear models of this type are discussed and compared. We illustrate the applicability of such models with a simple example based on hypothetical stem cell dynamics developed to add...