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Two rat experiments shed light on how variation in behavior is regulated. Experiment 1 used the peak procedure. On most trials, the 1st bar press more than 40 s after signal onset ended the signal and produced food. Other trials lasted much longer and ended without food. On those trials, the variability of bar-press duration increased greatly after the 1st(More)
The successful use of methadone in cancer pain has been supported by numerous case reports and clinical studies. Methadone is usually used as a second or third line opioid medication. As the use of methadone increases we are facing the challenge of converting methadone to other opioids as part of sequential opioid trials. Data on the equianalgesic ratios(More)
Based on an animal model to improve the antitumor activity of 5-fluorouracil (FUra), a Phase I study of N-(phosphonacetyl)-L-aspartate, methotrexate, FUra, and leucovorin was conducted on 44 patients. Methotrexate was given in an intermediate dose (250 mg/m2) to overcome potential drug resistance, and N-(phosphonacetyl)-L-aspartate was given at a low dose(More)
Recognizing delirium and its impact on older patients and their caregivers is an important aspect of oncology nursing. Delirium is the most common complication of hospital admissions for older adults and is associated with a significant amount of morbidity and mortality, prolonged hospital stays, functional decline, and decreased quality of life. Oncology(More)
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