In this paper we prove that all the hyperbolic components of the family λ tan z except the punctured unit disk are simply connected. Then, restricting λ to the imaginary axis, We show that there is a “Sharkovskii-like” ordering of the periods of the hyperbolic components. Finally, again for λ in the imaginary axis, we show that period doubling phenomena occur.

The invention of polymerase chain reaction (PCR) in 1983 revolutionized many areas of science, due to its ability to multiply a number of copies of DNA sequences (known as amplicons). Here we report on a method to double the throughput of quantitative PCR which could be especially useful for PCR-based mass screening. We concurrently amplified two target genes using only single fluorescent dye. ...

We assessed the growth kinetics of pathologically proven benign neoplastic cystic lesions of the pancreas. The volume and longest axial diameter (LAD) of 20 pathologically proven pancreatic cystic lesions (12 mucinous cystic neoplasms (MCN) and 8 serous cystadenomas (SCN)) on 2 multidetector computed tomography scans, obtained before resection, were measured. Reciprocal of doubling time, doubli...