In many time-to-event studies, particularly in epidemiology, the time of the first observation or study entry is arbitrary in the sense that this is not a time of risk modification. We present a formal argument that, in these situations, it is not advisable to take the first observation as the time origin, either in accelerated failure time or proportional hazards models. Instead, we advocate u...

where M is the mass of the ground state, and Γ is channel dependent. The presence of the decaying exponential has led to investigations being focused on the large Euclidean time “tails” of the two-point functions, and data at small times being discarded. The question was asked, “Is there a way of obtaining information from short times?”. The answer was “Yes” a QCD Sum Rules approach. Lattice QC...

Using limited data, I argue that the review times in statistics are far too long for the field to keep pace with the rapidly changing environment in science. I note that statisticians do not appear to believe in statistics because data on the review process are not widely available to members of the profession. I suggest a few changes that could be made to speed up the review process, although ...

BACKGROUND Excision of a leiomyoma has never been a choice during caesarean section. METHOD Myomectomy of a massive fibroid was necessitated prior to delivering the baby. RESULTS Delivery of a healthy was effected by Classical caesarean section. CONCLUSION Leiomyoma in pregnancy is not an unknown entity and is a cause of concern for being a source of excruciating pain, at times, during th...

The Crab nebula is the remnant of supernova 1054 (SN 1054). The progenitor of this supernova has, based on nucleosynthesis arguments, been modeled as an 8 − 10 M ⊙ star. Here we point out that the observations of the late light curve of SN 1054, from the historical records, are not compatible with the standard scenario, in which the late time emission is powered by the radioactive decay of smal...

The financial crisis which has hit Europe (and beyond) in 2008 has been described as a “health system shock” by the WHO which has urged EU Member States to ensure that the national healthcare systems would continue to promote universal access to health services by increasing efficiency in the health sector. The challenge for Member States is to ensure access to innovative medicines for unmet me...