Two Comments on Fetal Loss and Wastewater Workers

Comments on information loss and remnants.

The information loss and remnant proposals for resolving the black hole information paradox are reconsidered. It is argued that in typical cases information loss implies energy loss, and thus can be thought of in terms of coupling to a spectrum of “fictitious” remnants. This suggests proposals for information loss that do not imply planckian energy fluctuations in the low energy world. However,...

Comments on Multiparameter Estimation in Truncated Power Series Distributions under the Stein's Loss

This comment is to show that Theorem3.3 of Dey and Chung (1991) (Multiparameter estimation intruncated power series distributions under the Stein's loss.emph{Commun. Statist.-Theory Meth.,} {bf 20}, 309-326) may giveus misleading results. Analytically and through simulation, weshow that the Theorem does not improve the given estimator.

Wastewater workers and hepatitis A virus infection.

BACKGROUND The main occupational hazard of wastewater workers (WWs) is the direct exposure to the variety of infectious agents present in sewage material, with hepatitis A virus (HAV) being the most frequent one. Most epidemiological studies have shown a higher risk of hepatitis A among WWs, although some studies have produced conflicting evidence. AIMS To evaluate the hypothesis of increased...

Comments on "Chemistry of Pyrolysis and Kinetic Studies of Shea Nut (Vitellaria Paradoxa) Shells Activated Carbon for Textile Wastewater Treatment"

Comments on two password based protocols

Recently, M. Hölbl et al. and I. E. Liao et al. each proposed an user authentication protocol. Both claimed that their schemes can withstand password guessing attack. However, T. Xiang et al. pointed out I. E. Liao et al.’s protocol suffers three kinds of attacks, including password guessing attacks. We present an improvement protocol to get rid of password guessing attacks. In this paper, we f...