A 32 year o ld whi te woman presented wi th ulcerat ive co l i t i s o f approx imate ly two years durat ion . The phys ica l s igns , symptoms and f ind ings on chemica l examinat ion o f serum were compat ib le wi th magnes ium def ic i ency . Remarkable improvement wi th treatment o f magnes ium su l fa te was obta ined in a short per iod o f t ime . Addi t iona l t reatment , h igh prote in...

A bstract . An artificial universe is defined th at has entirely deterministic laws with exclusively local interactions, and th at exhibits the funda mental quantum uncert ainty phenomenon: superposed states mutually interfere, but only to the extent that no observat ion dist inguishes among them. Showing how such a universe could be elucidates interpret ational issues of act ual quant um mecha...

PURPOSE To evaluate the factors that affect postoperative astigmatism and post-suture removal astigmatism, and to evaluate the risk factors associated with astigmatism axis shift. METHODS We performed a retrospective chart review of 130 eyes that had undergone uneventful phacoemulsification cataract surgery. Preoperative astigmatism was divided into four groups (Groups I, II, III, and IV) acc...

The m a j o r i t y o f n o r m a l h u m a n se ra h e m o l y z e sheep e r y t h r o c y t e s in the p r e s e n c e o f c o m p l e m e n t ( "hemoly zers") , w h e r e a s s e ra o f the r e m a i n i n g populat ion do not lyze sheep e r y t h r o e y t e s C~nonhemolyzers") . The antibodies respons ib le for this lyt ic ac t iv i ty a r e n o w identified as be ing specific to F o r s s...

The removal of the chromium (VI) ion from aqueous solutions with the Lewatit FO36 ion-exchange resin is described at different conditions. The effects of adsorbent dose, initial metal concentration, contact time and pH on the removal of chromium (VI) were investigated. The batch ion exchange process was relatively fast and it reached equilibrium after about 90 min of contact. The ion exchange p...

The oxygen electrode does not behave reversibly in LiC1-KC1 at temperatures of 400~176 and at oxide ion concentrat ions of 0.1-0.2M. The following electrode systems behave revers ibly as electrodes of the second kind: Cu/ Cu~O,O=; Pt/PtO,O=; Pd/PdO,O=; Bi/BiOC1,O=. The Ni/NiO,O= and Bi/Bi~O~,O: electrodes did not show reversible behavior. Because of the relat ively high solubilities of the meta...

the carrier facilitated transport of lithium picrate was studied using a series of non-cyclic polyethers containing different end groups and chain lengths through bulk liquid membrane (blm) and supported liquid membrane (slm) systems. the various membrane supports used are viz. ptfe, cellulose nitrate, and dialysis membrane and onion membrane. the amount of li+ transported depends upon the stru...

the purpose of this study was to find a relatively inexpensive method for removal of arsenate and arsenite from drinking water. the capability of iranian natural clinoptilolites, relevant synthetic zeolites a and p and iron(п) modified of them was investigated for the uptake of arsenic anions from drinking water. data obtained from ion-exchange using batch (static) technique showed that among t...