A Break?

Study Break: Bacterial Cancer

Rarely, do we think of cancer as “bacterial”, such that we are often told that “cancer is NOT contagious” Persistent bacterial infections cause persistent irritation of the host’s defense systems, which when ineffective in eradication of the infection, result in a multitude of self-destructive damages. This in some cases occurs to such severity that the resu...

Break *

Dynamic stress concentration in a hybrid composite laminate subjected to a sudden internal break

In this work, transient dynamic stress concentration in a hybrid composite laminate subjected to a sudden internal crack is examined. It is assumed that all fibers lie in one direction and the applied load acts along direction of fibers. Two types arrangements are considered for the fiber; square and hexagonal arrangement. Using shear lag model, equilibrium equations are deduced and upon proper...

Break to Make a Connection

Meiosis is the cell division program utilized by most sexually reproducing organisms as a strategy to produce haploid gametes (i.e., sperm and eggs) from diploid parental cells. As suggested by its name, which stems from the Greek word meaning ‘‘to diminish or reduce’’, meiosis reduces the chromosome number by half. This is accomplished by following a single round of DNA replication with two co...

A way to break supersymmetry

I study the spontaneous breakdown of supersymmetry when higher-dimensional Yang-Mills or the type-I SO(32) string theory are compactified on magnetized tori. Because of the universal gyromagnetic ratio g = 2, the splittings of all multiplets are given by the product of charge times internal helicity operators. As a result such compactifications have two remarkable and robust features: (a) they ...