BIOPHYSICS: A Gentle Tug

A Tug of War

Early repolarization pattern (ERP) is a common ECG variant, characterized by J point elevation manifested either as terminal QRS slurring (the transition from the QRS segment to the ST segment) or notching (a positive deflection inscribed on terminal QRS complex) associated with concave upward ST-segment elevation and prominent T waves in at least two contiguous leads.1,2 The J point deflection...

A gentle introduction to

The PythonTEX package allows authors to combine computational and typesetting tasks by embedding Python code in TEX documents. This package allows access to many powerful Python modules, providing support for such things as symbolic mathematics, plotting, arbitrary precision numerical calculations, and networking. Python’s intuitive syntax, popularity, and extensibility along with TEX’s formatt...

A chemokine tug-of-war

ny cell therapy risks introducing mutated and possibly tumorigenic cells. Now results from Peter Stambrook (University of Cincinnati, Cincinnati, OH) and colleagues underline this concern for embryonic stem (ES) cells, which are one possible source for therapeutic cells. Stambrook constructed a cell line in which he could detect loss or mutation of a heterozygous marker gene. Loss (rather than ...

Biophysics.

Cryptographic Voting - A Gentle Introduction

These lecture notes survey some of the main ideas and techniques used in cryptographic voting systems. The write-up is geared towards readers with little knowledge of cryptography and it focuses on the broad principles that guide the design and analysis of cryptographic systems, especially the need for properly designed security models. We use a system proposed by Fujioka, Okamoto and Ohta as s...