An answer to a question of M. Newman on matrix completion

When to Reproduce? A New Answer to an Old Question.

We present a life-history model based on the assumptions that juvenile survival follows a negative exponential function and that fecundity gain increases linearly with time to maturity. This model predicts that the optimal fitness is achieved when survival at maturity is 0.368 (e(-1)). Survival at the time of maturity is therefore an invariant. We tested this prediction by using published data ...

On Foguel's Answer to Nagy's Question

Nagy's question is whether or not every power-bounded operator is similar to a contraction [3]. ("Power-bounded" means that the norms of the positive powers are bounded.) Foguel's answer is no [l]. The purpose of this note is to look at Foguel's ingenious counterexample from a point of view somewhat different from his own. The advantage of the new look is that it is less computational; its draw...

A Question and Answer Session on the Meaning of Being Human , with Dr. Gholamreza Aavani

Are Agents an Answer or a Question?

This short position paper attempts to place current debates about the eecacy and morality of \intel-ligent agents" into a larger historical context that includes the work of Kant, Babbage, and Minsky, among others, and that emphasizes the cyclic nature of such debates. We also try to add some social and ethical reenements to the debate.

OCs and VTE: a practical answer to an old question.

an old question In a recent commentary in this journal, Jürgen Dinger1 argued that that “the risk of VTE [venous thromboembolism] attributable to COCs [combined oral contraceptives] is a class effect, primarily dependent on the dose of estrogen” and that the type of progestogen used in the COC probably does not influence this risk. In an editorial in the British Medical Journal that accompanied...