De Quincey’s Ambivalent Echoes

Ambivalent jew

Ambivalent antihistamines.

-In mice with a transplantable mammary carcinoma, treatment with the prostaglandin-synthesis inhibitors flurbiprofen or indomethacin produced various beneficial effects. Survival time after excision of the transplanted tumour was increased, particularly when the drugs were given with the chemotherapeutic agents methrotrexate and melphalan, and there were more disease-free survivors. The combine...

Ambivalent Dopamine

Many of animal behaviors can be considered as the end product of the motivation to maximize benefits and minimize costs to the animal. Through intensive investigation based on psychopharmacological manipulations , dopamine in the mammalian nucleus accumbens (NAcc) has been implicated to play a key role in multiple aspects of moti-vational control of behaviors. However, the exact mechanism by wh...

From ambivalent to divalent

Despite decades of research on the effects of zinc in infectious diarrhea, there is surprisingly little consensus on how zinc works (or even if it works), on whether zinc’s effects are pathogen-specific, and what patient populations are most likely to benefit from zinc supplementation. Some recent articles focus on the growthpromoting effects of zinc on the pathogen itself, leading the reader t...

Spin Echoes

Intense radiofrequency power in the form of pulses is applied to an ensemble of spins in a liquid placed in a large static magnetic Geld H&. The frequency of the pulsed r-f power satisGes the condition for nuclear magnetic resonance, and the pulses last for times which are short compared with the time in which the nutating macroscopic magnetic moment of the entire spin ensemble can decay. After...