The 28 Si ( 3 He, d) 29 P reaction has been studied at an incident energy of 29.3 MeV. Comparisons of DWBA and CCBA analyses of angular distributions for low-lying bound states show that channel-coupling effect is not important except for stripping to the 1.95-MeV 5/2 + state. Angular distributions for resonance states are analyzed by using Gamow functions as form factors for DWBA calulations. Such a description gives a reasonable account of the experimental angular distributions except that it fails to reproduce experimentally observed j -dependence.
In a lumped-element two-port isolator, the relationship between the angle across two central conductors and electric characteristics is revealed using circuit analysis. At /spl phi/=90 degree, high isolation loss is achieved. At /spl phi/=60 degree, the bandwidth of insertion loss becomes maximum. This theoretical prediction at /spl phi/=60 degree was confirmed qualitatively by 360 MHz band experiments. Furthermore, we obtained the interesting result that the perfect isolation conditions at /spl phi/=60 degree is quite similar to three-port circulator conditions.
The standard chemotherapy regimen for esophageal cancer is cisplatin and 5-fluorouracil (5-FU). We herein report a case of esophageal cancer associated with colon cancer, which was treated with combination chemotherapy of FOLFOX. The patient received chemotherapy of modified FOLFOX6 (mFOLFOX6) at dosages of 80% of standard regimen (oxaliplatin 68 mg/m2, levofolinate calcium 160 mg/m2, bolus 5-FU 320 mg/m2, and followed by continuous 5-FU 1,920 mg/m2/ 46 hr) in combination with radiotherapy (total 61.6 Gy). He developed grade 3 leukopenia after 2 courses of mFOLFOX6 and the 3rd course was started at dosages of 70% of standard regimen with 1 week delay. After that, no other adverse event without grade 2 esophagitis was appeared. Esophagogram revealed a partial response in primary tumor of the esophagus after 3 courses of chemotherapy with radiotherapy and blood chemistry examination showed negative squamous cell carcinoma antigen. One month after chemoradiotherapy, esophagogram revealed tracheoesophageal fistula, but tumor of the esophagus was well controlled. FOLFOX regimen combined with radiotherapy is well tolerated and effective for inoperable esophageal cancer. FOLFOX cannot be used for esophageal cancer in Japan, so clinical trial of FOLFOX for esophageal cancer should be conducted in the near future in Japan.
We report a case of a patient who developed cytomegalovirus colitis during chemotherapy for esophageal cancer. A 62- year-old man was admitted to our hospital complaining of epigastralgia and dysphagia. He was diagnosed as having esophageal cancer( Mt, type 3, cT3, cN2, cM0, cStage III). Neoadjuvant chemotherapy with 5-fluorouracil( 5-FU) and cisplatin (CDDP) was initiated. However, after 1 course of chemotherapy, the patient experienced a stroke. Subsequently, he was treated with radical chemoradiotherapy. Chemoradiotherapy with low-dose docetaxel was administered. However, he developed interstitial pneumonia, and thus received pulse corticosteroid therapy with methylprednisolone. On the 26th day after steroid therapy, he developed melena. Colonoscopy revealed multiple punched-out ulcers in the transverse colon, and the patient was diagnosed as having cytomegalovirus colitis on the basis of positive cytomegalovirus antigenemia. Intravenous ganciclovir therapy was initiated. On the 13th day after ganciclovir therapy, the patient required an emergency surgery because of perforation-related peritonitis. We identified a perforation in the ascending colon and performed ileocecal resection. Although he was treated with paclitaxel, he died of esophagotracheal fistula and aspiration pneumonitis. We should be aware of cytomegalovirus colitis during chemotherapy and corticosteroid therapy.
The excited states in 91 Zr have been studied by the inelastic proton scattering at 14.52 MeV. Angular distributions for the elastic scattering and for the sixteen excited states have been obtained. They have been analysed by the optical model and the distorted wave Born approximation calculations. The character of some excited states has been discussed on the basis of analysis.
The coercive forces ofhard magnets arecalculated using a one-layer de¬ fect modelbased onmicromagnetism. Nuclea¬ tionprocesses are classified intothreetypes depending on thedefect parameters. Forcer¬ tain values oftheparameters, thenucleation field hasa minimumvalue. Theorigin ofthe decreasing coercive force anda methodfor increasing the coercive forceare also discussed.
