Showing papers by "Takashi Kubo published in 1992"
TL;DR: The cross section for the {sup 8}Li({alpha},{ital n}){sup 11}B reaction, which is crucial to predictions of primordial nucleosynthesis in inhomogeneous models, has been measured using the radioactive-beam facility of theRIKEN.
Abstract: The cross section for the $^{8}\mathrm{Li}$(\ensuremath{\alpha},n${)}^{11}$B reaction, which is crucial to predictions of primordial nucleosynthesis in inhomogeneous models, has been measured using the radioactive-beam facility of the Institute for Physical and Chemical Research (RIKEN). The reaction cross section to all allowed $^{11}\mathrm{B}$ states was found to be larger than that to just the $^{11}\mathrm{B}$ ground state by about a factor of 5.
61 citations
TL;DR: The decay property of {Sup 20}Na was studied using a {sup 20}Mg beam to learn better the onset mechanism of the rapid-proton process and there is no clear beta decay to the first excited 1{sup +} state above the proton threshold, suggesting that this state would not be the {ital s}-wave resonance in the thermal reaction of {sup 19}Ne+{ital p} as was expected before.
Abstract: The decay property of {sup 20}Na was studied using a {sup 20}Mg beam to learn better the onset mechanism of the rapid-proton process. The delayed protons were successfully measured, which correspond to one of the possible 1{sup +} states in {sup 20}Na. There is no clear beta decay to the first excited 1{sup +} state above the proton threshold, suggesting that this state would not be the {ital s}-wave resonance in the thermal reaction of {sup 19}Ne+{ital p} as was expected before. The half-life time of {sup 20}Mg is determined to be 114{plus minus}17 ms. The stellar reaction rate of {sup 19}Ne({ital p},{gamma}){sup 20}Na is also discussed based on the present experimental result.
13 citations
TL;DR: A 70-year-old man had a history of total laryngectomy for larynGEal cancer and bilateral inguinal hernia repair 5 years previously and had been treated for prostatic hypertrophy at the authors' department and was discharged on the 40th postoperative day.
Abstract: A 70-year-old man had a history of total laryngectomy for laryngeal cancer and bilateral inguinal hernia repair 5 years previously. The patient had suffered from difficulty with urination since then and had been treated for prostatic hypertrophy at our department. He developed microscopic hematuria from June 1991, and was admitted because a bladder tumor was detected by cystoscopy. Cystography showed a scrotal bladder hernia with filling defects in the bladder per se and the bladder hernia as well. Cystoscopy revealed tumors in the hernia and in the vicinity of the ureteral orifice. Biopsy indicated transitional cell carcinoma. Voiding cystourethrography showed normal urination and no residual urine. Excision of the tumor-containing hernia, partial cystectomy with right ureteral orifice, and reconstruction of the right inguinal canal were performed on October 25, 1991. The postoperative course was favorable and he was discharged on the 40th postoperative day. The tumors were respectively stage as TCC, G1, and pT1a, and TCC, G1 greater than G2, and pT1b. Thirty five cases of bladder hernia that have been reported in Japan. Eight cases of accompanied by cancer have been reported in Japanese (3 cases) and foreign (5 cases) literatures. These are reviewed and discussed.
3 citations
Journal Article•
TL;DR: Because sarcomatoid renal cell carcinoma has a highly malignant behavior and poor prognosis, an adjuvant treatment effective in controlling the disease is awaited.
Abstract: We report 3 cases of sarcomatoid renal cell carcinoma, which is an uncommon neoplasm consisting of a typical renal cell carcinoma associated intimately with a sarcomatoid component. All patients were symptomatic at hospitalization and underwent nephrectomy. Two patients died of metastatic renal cancer within a year, and another is alive without evidence of metastasis for 12 months after the surgery. Because sarcomatoid renal cell carcinoma has a highly malignant behavior and poor prognosis, an adjuvant treatment effective in controlling the disease is awaited.
1 citations