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排序方式: 共有37条查询结果,搜索用时 218 毫秒
1.
Kenzi Takamura 《Ecotoxicology (London, England)》1995,4(4):245-257
The effect of the surfactant LAS was investigated on chironomid emergence using six outdoor artificial channels. The concentrations of LAS were mostly between 1 and 2 mgl-1 in the three treated channels. Chironomus yoshimatsui, Cricotopus tamapullus, Eukiefferiella coerescens, Eukiefferiella sp. and Thienemanniella majuscula were the major chironomids obtained with emergence traps. The number of midges trapped did not differ significantly between the treatment and the control for either of the species. On the other hand, the ratios of midges failing to emerge to the total midges trapped was significantly higher in the treatment than in the control for all of the species. The results show that chironomids emergence is difficult as a result of LAS treatment probably due to the lowered surface tension. 相似文献
2.
Kobayashi T Matsumoto T Tateda K Isogai K Kimura K Uchida K Kashitani H Yoshida K Shinozawa Y Kashiyama T Nakatani T Yamaguchi K 《Kansenshōgaku zasshi. The Journal of the Japanese Association for Infectious Diseases》2002,76(12):995-1002
We evaluated a new rapid urinary antigen detection kit. NOW Streptococcus pneumoniae (Binax Inc., USA) that detected S. pneumoniae antigen by immunochromatographic membrane assay, with 66 Japanese adult patients of community acquired pneumonia. Twenty-two (33.3%) patients were found to be positive with the kit and S. pneumoniae was isolated from six patients (27.3%) of these 22 patients. S. pneumoniae was not isolated from eight of the 22 patients by blood or sputum culture. Analysis of clinical laboratory data showed that the levels of C-reactive protein (CRP) in the serum were significantly higher in the urine-antigen positive group than those in the urine-antigen negative group. There were no significant difference between the two groups including renal function, urinalysis, clinical symptom, and severity of pneumonia. Our study suggests that more cases of community acquired pneumonia are caused by S. pneumoniae than conventional tests can currently confirm. Since it is not technically complex, does not require equipment, and detects within as quickly as in 15 minutes, the S. pneumoniae urinary antigen kit is useful for rapid diagnosis of community acquired pneumonia in adults. 相似文献
3.
A double-blind, parallel-group, placebo-controlled trial was performed on 50- to 80-year-old Japanese men and women diagnosed with mild cognitive impairment in order to examine the efficacy of oral administration of Yamabushitake (Hericium erinaceus), an edible mushroom, for improving cognitive impairment, using a cognitive function scale based on the Revised Hasegawa Dementia Scale (HDS-R). After 2 weeks of preliminary examination, 30 subjects were randomized into two 15-person groups, one of which was given Yamabushitake and the other given a placebo. The subjects of the Yamabushitake group took four 250 mg tablets containing 96% of Yamabushitake dry powder three times a day for 16 weeks. After termination of the intake, the subjects were observed for the next 4 weeks. At weeks 8, 12 and 16 of the trial, the Yamabushitake group showed significantly increased scores on the cognitive function scale compared with the placebo group. The Yamabushitake group's scores increased with the duration of intake, but at week 4 after the termination of the 16 weeks intake, the scores decreased significantly. Laboratory tests showed no adverse effect of Yamabushitake. The results obtained in this study suggest that Yamabushitake is effective in improving mild cognitive impairment. 相似文献
4.
Susumu Nagamine Shigeru Shinozaki Kenzi Ohsaka Hidemitu Kakihata 《The Japanese Journal of Thoracic and Cardiovascular Surgery》2001,49(3):175-177
Three adults, 2 with tricuspid aortic valve and 1 with bicuspid valve, underwent valvuloplasty for aortic valve regurgitation resulting from cusp prolapse. Surgical procedures consisted of combined cusp plication by triangular cusp resection and subcommissural annuloplasty. Doppler echocardiography revealed trivial aortic valve regurgitation intraoperatively and less than I/IV at discharge in all cases. After mean follow-up of 15 months, 2 tricuspid aortic valve patients remain I/IV regurgitation and II/IV in the bicuspid patient. Although long-term results remain unclear, our results show that this procedure is feasible and beneficial in patients with aortic valve regurgitation due to cusp prolapse. 相似文献
5.
Mayumi Tai Nozomu Somata Ryou Onitsuka Kenzi Mori Osamu Ichii Yoshikuni Nagashio Tatsuyuki Watanabe Etsuko Noguchi Tomohiro Suzuki Hironobu Ochiai Yutaka Ejiri Hando Hakozaki 《Nihon Shokakibyo Gakkai zasshi》2008,105(1):86-92
A 57-year-old woman was admitted to the hospital because of obstructive jaundice. Abdominal computed tomography and ultrasonography showed a homogeneous mass 7cm in diameter at the head of the pancreas. Gamma-scintigraphy showed uptake in the head of the pancreas. Histological diagnosis was obtained by endoscopic ultrasoundscopy-fine needle aspiration (EUS-FNA). The pathological and immunohistochemical studies showed diffuse lymphoma with large B-cells. We experienced a rare case of pancreatic malignant lymphoma and EUS-FNA was usefull in the diagnosis. 相似文献
6.
Yoshinari Wakisaka Yoshiyuki Taenaka Kenzi Araki Ken-ichi Chikanari Takeshi Nakatani Yuzo Baba Hirohumi Anai Kazuhiro Eya Koichi Toda Hisateru Takano 《Artificial organs》1997,21(2):148-153
Abstract: Antithrombogenicity in an initial type (Nl) of a centrifugal pump (CP) developed in our institute is provided by the central balancing hole of an impeller. A new CP (N2) was modified to obtain better antithrombogenicity, in which the balancing hole was widened to improve self washout flow velocity (Vsf), and an edge of the thrust bearing was rounded off to minimize flow separation. Effects of the modifications were assessed in vitro and in vivo studies. The Vsf of the Nl and the N2 evaluated by a Doppler velocimeter were 12.8 and 22.1 cm/s, respectively. Flow around the thrust bearing, which was visualized by a light cutting method, confirmed less flow stagnation in the N2. The hemolytic indices of the Nl and the N2 were 0.023 and 0.008 mg/dl, respectively. In vivo antithrombogenicity and the hemolytic properties of the N2 and the Nl were investigated without anticoagulation therapy in 3 goats. In each goat the N2 was driven for 1 week and exchanged for the Nl, which was driven for the same period. Red thrombi at the thrust bearing were found in 2 Nls, and 2 small thrombi were on the impeller of another Nl, whereas a thrombus of less than 1 mm3 at the TB was noted in 1 N2. Plasma free hemoglobin was not increased in either CP. These results indicate that the N2 has better antithrombogenicity and hemolytic properties than the Nl. 相似文献
7.
Koichi Koyama Terue Okamura Joji Kawabe Nozomi Ozawa Kenzi Torii Naohiko Umesaki Masato Miyama Hironobu Ochi Ryusaku Yamada 《Journal of nuclear medicine》2003,44(3):353-358
The purpose of this study was to evaluate PET using (18)F-FDG for gynecologic lesions with continuous bladder irrigation to eliminate artifacts from the (18)F-FDG activity in the bladder. METHODS: Forty-one patients were studied. They had 23 cervical uterine lesions (15 cases of cancer, 5 recurrences, 3 nonrecurrences); 8 cases of uterine corpus cancer, including 2 recurrences; and 10 ovarian masses (6 malignant, 4 nonmalignant). All cases of cancer were histologically proven; however, 2 cases of nonrecurrent uterine cervical carcinomas were diagnosed by clinical course. Continuous bladder irrigation was performed 35-55 min after intravenous administration of 185-370 MBq (18)F-FDG, and an emission scan was obtained 40-55 min after intravenous administration. Standardized uptake value (SUV) was used to estimate the degree of (18)F-FDG uptake quantitatively. RESULTS: After bladder irrigation, the (18)F-FDG activity in the urinary tract was eliminated in 33 patients, so that detection of tumor (18)F-FDG accumulation was easy. Two patients showed residual activity in the urinary bladder, and 6 patients showed activity in the ureter. An artifact was seen in 1 patient with residual activity in the urinary bladder caused by insufficient irrigation. However, these residual activities had no influence on detecting (18)F-FDG accumulation in tumor. The mean (+/-SD) of SUVs of malignant lesions was 6.04 +/- 3.22, that of nonmalignant lesions was 1.71 +/- 1.12, and the difference was significant (P = 0.0002). SUVs of all malignant lesions were greater than 2.0, and SUVs of all nonmalignant lesions, except the 1 case of ovarian fibroma, were less than 2.0. CONCLUSION: (18)F-FDG PET with continuous bladder irrigation is useful for eliminating (18)F-FDG activity in the bladder and for differentiating between malignant and nonmalignant uterine or ovarian masses. 相似文献
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9.
Noriyuki OGAWA Jun HOSOMI Seigo KOURA Takeshi OSHIKAWA Nobuyasu TATEISHI Mutuhide TANAKA Kenzi KAMIJYO Yoshihiro TANIGAWA 《Psychogeriatrics》2012,12(2):133-136
In Alzheimer's‐type dementia, significant nerve cell degeneration is seen in the medial temporal lobe, including the hippocampal region, and in the temporoparietal association area. As symptoms progress, impairments in various behaviours begin to occur in daily life. In particular, higher brain dysfunction, including parietal association area dysfunction, are major impediments to providing care or rehabilitation. Herein, we explain behavioural disorders stemming from higher brain dysfunction and discuss the methodology in providing specific care and appropriate rehabilitation. To provide appropriate rehabilitation, it is important to properly assess the causes of behavioural disorder by organizing the characteristics of symptoms, the person and the environment. 相似文献
10.