This paper introduces a family of tetravalent graphs called rose window graphs, denoted by Rn(a, r), and investigates their symmetry properties. Four families of these graphs are shown to be edge-transitive and it is conjectured that every Rn(a, r) which is edge-transitive belongs to one of these families. Proofs and conjectures about the size of a dart-stabilizer and about regular maps contain...

It shows him in his Public Health Service uniform sometime after 1915, when he attained the rank of Assistant Surgeon General. Carter was a quarantine officer and a field epidemiologist, best known for his discovery in 1898 of the extrinsic incubation period of yellow fever. His discovery led directly to the historic finding by Reed, Carroll, Agra-monte, and Lazear in 1900 that mosquitoes are t...

The chronic effects of glycine transporter 1 and 2 inhibitors (sarcosine and ALX-1393, respectively) on miniature inhibitory postsynaptic currents were studied in cultured spinal neurons. We found that sarcosine increased the frequency of overall miniature inhibitory postsynaptic currents without affecting the ratio of glycinergic, mixed and GABAergic miniature inhibitory postsynaptic currents,...

On June 2, 2015, Irwin (Ernie) Rose died quietly in his sleep at age 88, after a long and fruitful lifetime of sleuthing for the secrets of life at the molecular level. Truly great scientists are much more than the sum of their publications and awards. This is especially true for Ernie who, when informed that he had been awarded the 2004 Nobel Prize in Chemistry, wondered aloud whether he reall...

Hierarchical structure is ubiquitous in data across many domains. There are many hierarchical clustering methods, frequently used by domain experts, which strive to discover this structure. However, most of these methods limit discoverable hierarchies to those with binary branching structure. This limitation, while computationally convenient, is often undesirable. In this paper we explore a Bay...

This paper is an introduction to rose links and some of their properties. We used a series of invariants to distinguish some rose links that are rotationally symmetric. We were able to distinguish all 3-component rose links and narrow the bounds on possible distinct 4 and 5-component rose links to between 2 and 8, and 2 and 16, respectively. An algorithm for drawing rose links and a table of ro...

The genus Rosa Linn. (Rosaceae) is widely distributed in the temperate parts of the northern hemisphere and on tropical mountains. About 20 species and hundreds of varieties have been recorded in India in wild state and many have been introduced for cultivation as ornamentals. Mostly hybrid varieties exhibit a marked fragrance and are suitable for the extraction of Rose water and Rose oil (atta...