We present a web-based visual analytics framework to visualize viscous fingers that combines particle systems, direct volume rendering, and graphs. In our first step, we apply a Gaussian filter to the particle dataset to obtain a voxel representation for the entire computational domain. Next, we extract and track the viscous fingers using Reeb graphs, where the fingers are treated as level sets...

Invaginations in the membranes of embryonic cells appear to orient cell division in sea squirts.

Sticky fingers for migration R oaming cells send out sticky fi ngers to probe for good attachment points, say Catherine Galbraith, Kenneth Yamada, and James Galbraith (NIH, Bethesda, MD). The fi ngers’ sideways movements give cells a wider fi eld of vision than do forward and reverse movements alone. These sideways movements were picked up by the authors as ripples in the plasma membrane at the...

4 0 7 SUPERNUMERARY FINGERS AND TOES. Bv J. W. CORNWALL, M.A., M.D., d.p.h., LIEUT.-COL., I.M.S., AND S. RAMASAMY AYYAR, Sub-Assistant Surgeon. In the hope that'they may be of some interest and use to students of heredity we publish the pedigrees of two Hindu families each of which possesses several members afflicted with either supernumerary fingers or toes or both. One female from family 2 ma...

THE numnber of spells of certified incapacity due to cellulitis and abscesses of fingers was 6 per cent. of the total from all causes in 1953-4 (Ministry of Pensions and National Insurance, 1953-4). Despite the fact that gross infections requiring radical treatment are now rarely seen, this figure prompts constant vigilance for advances in treatment. This paper reviews the treatment of infectio...

The life cycle of the malaria parasite (Plasmodium) is remarkably complex. Malaria parasites must engage in highly specific and varied interactions with cell types of both the mammalian host and the mosquito vector. In this issue of Cell, report detailed molecular insights into an intimate interaction between a malaria parasite protein and its host cell receptor that enables the parasite to inv...

Pulse oximetry is dependent upon the presence of a pulsating vascular bed. Low pulsatile blood flow in the digits is caused by various factors. Regardless of the cause, if there is sufficient arterial pulse pressure, blocking the sympathetic nerve should cause a local increase in capillary flow and pulse volume. This study was performed to evaluate the effect of digital nerve block on pulse oxi...