Bones from porphyric animals are treated first with 40% sodium hydroxide and subsequently with concentrated hydrochloric acid which dissolves the chalky residue from the alkaline digestion under violent foaming. The porphyrins are precipitated from the acid solution at pH ca. 3 together with calcium salts and subsequently washed and dissolved in about 50% acetic acid. The solution is then dilut...

We use direct N-body simulations to study the inspiral and internal evolution of dense star clusters near the Galactic center. These clusters sink toward the center due to dynamical friction with the stellar background, and may go into core collapse before being disrupted by the Galactic tidal field. If a cluster reaches core collapse before disruption, its dense core, which has become rich in ...

We present a model of He relaxation on the surface of borosilicate glass which accurately predicts observed relaxation rates and their temperature dependence. Above room temperature He dissolves into Pyrex, where interactions with Fe3þ ions result in a relaxation time of 1 ms. Gas exchange across the glass surface of an enclosed vessel leads to T 1 1 1⁄4 A=V ð3:9 1:4Þ 10 2 cm/h at room temperat...

The recycling of waste plastics that include plastics that contain chlorine, such as polyvinyl chloride, is difficult because the chlorine leads to the corrosion of equipment. Then, the dechlorination method of waste plastics containing chlorine (CCWP) that consists of a series of melt process and hot water process was examined. CCWP was put into the melt process with coal tar (HOB) and convert...

Fibrinolytic therapy has an expanding role in the treatment of many thromboembolic disorders. Four fibrinolytic drugs are currently marketed: streptokinase, anisoylated plasminogen-streptokinase activator complex, urokinase, and recombinant human tissue-type plasminogen activator. All 4 of these drugs activate the fibrinolytic system by converting plasminogen to the active enzyme, plasmin. Plas...

University have developed an approach of integrating single crystalline silicon electronics, made out of nanomembranes, into silk that is both biocompatible and absorbable by the body. This can lead to the introduction of monitors and therapeutic devices into spaces where traditional electronics cannot function safely. The small size of the thin silicon circuits avoids adverse biological reacti...

In this paper, we propose a new method for detecting shot boundaries in video sequences by performing Hilbert transform and extracting feature vectors from Gray Level Co-occurrence Matrix (GLCM). The proposed method is capable of detecting both abrupt and gradual transitions such as dissolves, fades and wipes in the video sequences. The derived features on processing through Kernel k-means clus...

Bulk quantities of electrically conducting nanotubes of polypyrrole having narrow pore diameter (6 nm) can be synthesized rapidly by chemical oxidative polymerization of pyrrole in the presence of stoichiometric amounts of V2O5 nanofibers. The V2O5 nanofibers act as templates for polymerization and yield, as the initial product, polypyrrole nanotubes with pores filled with V2O5. The V2O5 dissol...

We describe a new approach to the detection and classiication of scene breaks in video sequences. Our method can detect and classify a variety of scene breaks, including cuts, fades, dissolves and wipes, even in sequences involving signiicant motion. We detect the appearance of intensity edges that are distant from edges in the previous frame. A global motion computation is used to handle camer...

Screen-printing provides an economically attractive means for making Ag electrical contacts to Si solar cells, but the use of Ag substantiates a significant manufacturing cost, and the glass frit used in the paste to enable contact formation contains Pb. To achieve optimal electrical performance and to develop pastes with alternative, abundant and non-toxic materials, a better understanding the...