I n November 2004, in addition to electing a president and other representatives, voters nationwide acted as legislators themselves, weighing in on 162 statewide ballot propositions. Voters in 11 states amended their constitutions to ban gay marriage. Voters in California approved a $3 billion bond issue for stem cell research and repealed a state law requiring businesses to provide health insu...

Human milk is a complex secretion that is the sole ideal food for babies for at least the first 6 months of life. The amount and composition of the milk is largely independent of the mother's diet. The composition of the milk changes during lactogenesis II, and these changes can be used as biochemical markers of the onset of copious milk secretion. After 1 month of lactation, there are few furt...

The first illusion is called “visual capture” and it works as given below. If something nearby makes a sound, you can pretty much tell where the sound comes from. But if you see something else move at exactly the same time, you might get the impression that the sound actually comes from the moving object. If a bird chirps in a bush, and you see a door open at the same time, you might think that...

At some time in the 1780s the Industrial Revolution began—firstly in Britain then in other European countries. Technical and commercial advances enabled European societies to break through their pre-industrial production ceiling, initiating the seemingly limitless multiplication of goods and services. Expanding industry attracted labourers and their families to towns and cities, which grew rapi...

‎In addition to his countless contributions to spectral graph theory‎, some works of Dragos Cvetkovic are concerned with chemical problems‎. These are briefly outlined‎, ‎with emphasis on his collaboration with‎ ‎the present author‎.