The feasibility of disrupting a tumor's vascular structure using (210)Po microspheres is investigated using standard ion and photon absorbed dose methodologies. Calculated absorbed dose profiles for (210)Po alpha particles are sufficient to disrupt a tumor's arteriole structure while minimizing the dose outside the blood vessel wall. (210)Po photons contribute minimal dose to healthy tissue. Th...

The spectra of both protons and alph'a pa•-ticles (1 <• E • 7 MeV/nucleon) during 31 recurrent particle streams are fit well by an exponential in particle rigidity. Although the spectra show considerable temporal variation, the proton and alpha particle spectra are correlated such that the e-folding rigidities Po(•) and Po(P) of the two spectra are in the ratio Po(•)/ Po(P) = 1.5 ñ 0.1. The con...

[1] Due to its high volatility, Po can be effectively released from active volcanoes prior to their explosions. A continuous record of the fallout rate of Po versus that of Pb in northern Taiwan reveals that most of the Po was derived from preeruption gas emission of Philippines’Mayon volcano in the past two years. From this observation we suggest that, if a global network can be properly desig...

Central Veterinary Institute-Lelystad of Wageningen UR (CVI), PO Box 65, 8200 AB Lelystad, The Netherlands; Netherlands Food and Consumer Product Safety Authority (NVWA), PO Box 9102, 6700 HC Wageningen, The Netherlands; National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720 BA Bilthoven, The Netherlands; Department of Infectious Diseases and Immunology, Utrecht Univers...

Objective: The aim of the present study was to compare the effects of Portulaca oleracea (Po) seeds extract and those of valsartan on cardiac function in levothyroxine (T4)-treated rats. Materials and Methods: Forty Wistar rats were divided into four groups (n=10): control, levothyroxine (T4), T4 plus valsartan (T4-Val) and T4 plus hydro-alcoholic extract of the P. oleracea seeds (T4-Po). Contr...

Phenoloxidase (Po) activity was measusred spectrophotometrically in serum, plasma and haemocytes (HLS) of the freshwater crayfish (Pontastacus leptodactylus). The highest activity was found in HLS suggesting that the haemocytes are the major source of the Po or its proform prophenoloxidase (proPO) in crayfish. Furthermore, the enzyme activity in serum samples was reduced after freezing the samp...

Phenoloxidase (Po) activity was measusred spectrophotometrically in serum, plasma and haemocytes (HLS) of the freshwater crayfish (Pontastacus leptodactylus). The highest activity was found in HLS suggesting that the haemocytes are the major source of the Po or its proform prophenoloxidase (proPO) in crayfish. Furthermore, the enzyme activity in serum samples was reduced after freezing the samp...

Purpose: Thus far, no promising drug for Alzheimer disease has been developed. Previously, we documented the beneficial effects of 1,2-dilinoleoyl-sn-glycero-3-phosphocholine (DL-PC) and/or 1palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (PO-PC), which enhanced learning and memory abilities and improved cognitive disorders in both animals and humans. The present study reviews the usefulness of ...

The rapid increase of palm oil (PO) production in the last 20 years has made it the most important oil in the world. By year 2007, the annual global production of PO reached 40 million metric tons. Currently, Malaysia accounts for almost 50% of world palm oil production. As most of natural oils, PO has only a limited application in their original form, as a consequence of its complex chemical c...

A new eulytite-like orthophosphate Pb(3)Bi(PO(4))(3), was synthesized by the high temperature solution growth (HTSG) method and characterized by X-ray single crystal diffraction, powder diffraction and electron microscopy. It crystallizes in the acentric cubic space group (I4[combining macron]3d). The pure-phase powders of Pb(3)Bi(PO(4))(3), Ba(3)La(PO(4))(3) and Ba(3)Bi(PO(4))(3) were also pre...