The m-order connectivity index (G) m of a graph G is     1 2 1 1 2 1 ... ... 1 ( ) i i im m v v v i i i m d d d  G where 1 2 1 ... i i im d d d  runs over all paths of length m in G and i d denotes the degree of vertex i v . Also,        1 2 1 1 2 1 ... ... 1 ( ) i i im m v v v i i i ms d d d X G is its m-sum connectivity index. A dendrimer is an artificially manufactured or synth...

Traders in the financial world are assessed by the amount of money they make and, increasingly, by the amount of money they make per unit of risk taken, a measure known as the Sharpe Ratio. Little is known about the average Sharpe Ratio among traders, but the Efficient Market Hypothesis suggests that traders, like asset managers, should not outperform the broad market. Here we report the findin...

Over the course of five years, a total of ten cases were collected of glioma patients in whom a distant lesion at the fourth ventricle was noted. A 'distant lesion' was defined as a lesion with a normal appearing tissue bridge at imaging between the primary and secondary locations. Previous imaging of these patients was reviewed along with clinical history, course of therapy, and available hist...

We present a novel approach to assessing the attentiveness of professional forecasters to news about the macroeconomy. We …nd evidence that professional forecasters, taken as a group, do not always update their estimates of the current state of the economy to re‡ect the latest releases of revised estimates of key data. Key words: Professional forecasters, data revisions, inattention. JEL classi...

The floor of the fourth ventricle in the mouse was studied by scanning and transmission electron microscopy. 1. The fourth ventricular floor is covered by a simple layer of ependymal cells, the cytoplasm of which is characterized by numerous filaments and scanty ribosomes. 2. The ventricular surface of the ependyma is studded with numerous cilia and abundant microvilli. In the medial part of th...