Separating different components of a plastic mixture is crucial in its recycling. Among the separation techniques, flotation was selected as cheap, non-toxic, and efficient process. Basis technique refers to selective adsorption depressant on plastics surface which cause alteration energy plastic. Adsorption lignosulfonic acid sodium salt (SL) available waste stream studied. Plastics used this ...

Sulfomethylation of radiata pine kraft lignin was performed using formaldehyde and sodium sulfite under alkaline conditions to determine its potential as a mineral depressant for the separation molybdenite chalcopyrite by froth flotation. Optimal sulfomethylation reaction were 20% (w/w) Na2SO3 at 130 °C 4.2 h, which resulted in with sulfonate content 2.2 mmol/g. Microflotation assays showed tha...

Morphine and related narcotic agonists produce mixed depressant and/or stimulant effects in a wide variety of animals including man (1,2) . These effects are not only species but also time and dose related . It is not gener ally appreciated that even a single dose of morphine in a given species, such as the rat, may have initial depressant and subsequent stimulant effects. We believe this is an...

The protective effects of Mucuna pruriens seed extract (MPE) against the cardio-respiratory depressant and neuromuscular paralytic effects induced by injection of Calloselasma rhodostoma (Malayan pit viper) venom in anaesthetized rats were investigated. While MPE pretreatment did not reverse the inhibitory effect of the venom on the gastrocnemius muscle excitability, it significantly attenuated...

various extracts of sarcostemma viminale were screened for central analgesic activity by hot plate test, peripheral analgesic activity by acetic acid-induced writhings, cns depressant activity by pentobarbitone-induced sleep and locomotor activity testing methods and anthelmintic activity on the earthworms pheretima posthuma . results showed that petroleum ether and ethyl acetate extracts had g...

we have studied the effect of amitriptyline, a tricyclic anti-depressant drug on several immune parameters of the balb/c mice in order to evaluate its immunomodulatory effects. results showed that amitriptyline will potentiates all of the immunocytes functions except for the production of pge2 by lps stimulated monocytes. we have also showed that amitriptyline can normalize the immunosuppressiv...

Office of Naval Research 11 ARSTRACT The question of the precise role of the heart in shock has been laroely unresolved. Previous separate reports have shown that both excitatory and depressant actions on the myocardium after endotoxin are observed. The purpose of the present study was to assay the possibility of a direct myocardial toxic aqtion of endotoxin or a circulatino mvocardial depressa...

background: in some disorders such as diabetes mellitus patients can display depressive symptoms. metformin is among the first-line treatments for management of the type 2 diabetes mellitus which may have some anti-depressant effect. objective: current investigation was performed to examine the anti-depressant effects of metformin and the involvement of nitric oxide (no) in this way, in an expe...