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41.
K Ueda M Konishi K Maeda K Hamada M Sakamoto E Yoshimoto T Majima K Mikasa E Kita R Sano T Masutani N Narita 《Canadian Metallurgical Quarterly》1998,72(12):1325-1329
A 78-year-old female was admitted with complaints of malaise and fatigue in the legs. The patient was diagnosed as severe aplastic anemia and treatment was started with metenolone and steroid pulse therapy. Administration of antibiotics and granulocyte-colony stimulating factor which led to a resolution of the high fever. About four months after admission, the patient developed vomiting and abdominal pain with a spiking fever. The next day after suddenly losing consciousness, she died. B. cereus was isolated from blood cultures. Autopsy specimens of the liver, cardiac muscle and lung showed changes due to B. cereus. This pathogen is widely distributed in nature. We should not overlook B. cereus as a contamination, but rather should consider it a potential pathogen in immunocompromised hosts, when it is isolated from blood cultures. 相似文献
42.
The pathogenic mechanism of drug allergy was investigated by determining leucocyte migration activating factor (LMAF), interleukin-1 alpha (IL 1 alpha) and 1 beta (IL-1 beta), and tumor necrosis factor-alpha (TNF-alpha) levels in 13 patients with suspected hypersensitivity to drugs, following with the relevant agents. LMAF was detected in 10 out of 11 patients in the absence of serum and in 8 out of 9 patients in the presence of serum by means of the leucocyte migration inhibition test (LMIT). The drug-stimulated group had a significantly higher level of IL-1 alpha production than a non-stimulated group, both without serum (p < 0.05) and with serum (p < 0.05), among patients positive for LMAF. Moreover, the LMAF-positive group had a significantly higher level of IL-1 alpha production than the LMIT-negative group, both without serum (p < 0.05) and with serum (p < 0.05). In contrast, the level of IL-1 beta production showed no significant difference, either without or with serum, between drug-stimulated and non-drug-stimulated patients who were positive for LMAF. The production of TNF-alpha in the LMAF-positive group was significantly greater in drug-stimulated patients than in non-drug-stimulated patients, but only in the presence of serum (p < 0.05). However, the level of TNF-alpha production showed no significant difference, either without or with serum, between the LMAF-positive group and the control group. Our findings suggest that IL-1 alpha may be prominently involved in the production of LMAF in allergic reactions to drugs and that the production of TNF-alpha may be enhanced in the presence of serum. 相似文献
43.
To more completely describe acromion morphology and its relationship to impingement syndrome, we performed three-dimensional magnetic resonance imaging (N = 111) or computed tomography (N = 27) on 132 symptomatic shoulders. The mean patient age was 46.2 years (range, 14 to 86). Four parameters were evaluated: the angle of anterior slope of the acromion in the midsagittal and lateral-sagittal planes, lateral acromial angulation in the coronal plane, and the presence or absence of medial encroachment in the acromioclavicular joint. Twenty-five asymptomatic age-matched shoulders were used as controls. All imaging data were combined because no significant differences existed between the two imaging techniques. The mean acromion angle was 19.4 degrees in the midsagittal plane and 20 degrees in the lateral-sagittal plane. In the coronal plane, 97 (73%) acromions were neutral and 35 (27%) were downward sloping. Medial encroachment was present in 31 (24%) shoulders. Age distribution from the 2nd to 8th decade demonstrated a consistent and gradual transition from a flat acromion in the younger decades to a more hooked acromion in the older decades that was significant in both the midsagittal and lateral-sagittal planes. Furthermore, a greater percentage of patients were found to have downward angulating acromions with increasing age. Ninety-eight patients (74%) had stage II or III impingement. Of these shoulders, 39 (40%) had type I acromions, 51 (52%) type II, and 8 (8%) type III. Twenty-eight of 33 acromions with coronal lateral downward sloping had impingement, and all 31 shoulders with medial encroachment had impingement. 相似文献
44.
Sang Chul Shim Fumitaka Tsukihashi Nobuo Sano 《Metallurgical and Materials Transactions B》1993,24(2):333-337
Although a great number of works on BaO-bearing fluxes for refining Fe-Cr and Fe-Mn alloys have been carried out, there still
remain several unresolved problems on using them in the refining process. The principal aim of the present study is to understand
the thermodynamic properties of the BaO-MnO system, which has been shown to be very effective for dephosphorization of Fe-Mn
alloys. The activity of manganese oxide in the BaO-MnO flux was measured at 1573 and 1673 K by equilibrating the flux, a Ag-Mn
alloy, and a gas mixture of CO and CO2 as functions of the flux composition and temperature. The influence of BaF2, which is an effective additive for lowering the melting temperature of the flux, on the thermodynamics of the BaO-MnO system,
including the solubility of MnO in the BaO-BaF2 system, was also investigated. 相似文献
45.
High-voltage power distribution systems are connected in a branch configuration so as to meet the need for highly reliable power service. When service is interrupted the faulty section is automatically isolated and the power supply is rerouted from an adjacent power distribution system thereby minimizing the service interruption area. The faulty section in the power distribution system is quickly located by means of time relays installed in the switchgears. The settings of those time relays, however, must be monitored constantly. For this reason, we have proposed a “section management method” which can supervise each section of the power distribution system. From this method, we developed a prototype automated distribution system for overall management of time relays through the use of internal software, facilities and customer feedback. This paper describes the section management of power distribution systems. 相似文献
46.
Yoshio Iwai Shinji Miyamoto Hideaki Ikeda Yasuhiko Arai Shigetoshi Kobuchi Yuji Sano 《Polymer Engineering and Science》1993,33(6):322-327
The mutual diffusion coefficients for styrene-butadiene rubber(SBR)-n-nonane systems were measured using a sorption apparatus with a quartz spring at 100 and 130°C for mass fractions of n-nonane ranging from 0 to 0.16. The mutual diffusion coefficients were correlated with good agreement by the free-volume theory. 相似文献
47.
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49.
The evaporation, carburization and diffusion behavior of Nb-coated Mo and of Nb-coated Ti were investigated in order to estimate the surface characteristics of the coated systems. Nb layers were formed on Mo by both chemical and physical vapor deposition and on Ti by just physical vapor deposition. From the diffusion behavior, interdiffusion coefficients were obtained at 1860°C, 1980°C and 2080°C for the chemically vapor-deposited Nb/Mo system. From evaporation experiments it was found that simultaneous evaporation of Nb and Mo occured at about 2300°C for thick films of Nb on Mo. For thin films of Nb on Mo, the evaporation of both Nb and Mo was confirmed at 1900°C by ion microprobe analysis of the condensate. For Nb/Ti, rapid diffusion of Nb into Ti and evaporation of Ti similar to the case of Nb-Ti alloys were observed. From the carburization study, it was found that an Nb coating appreciably retards the carburization of Ti and Mo. 相似文献
50.
Electron microscopic in situ hybridization (EM-ISH) is a useful method in determining the localization of a specific nucleic acid at the ultrastructural level. Since the EM-ISH protocol includes many steps, no standard protocol for EM-ISH is available yet. In this study, we optimized quantitatively the critical conditions with respect to embedding resin, nucleic acid labeling and hybridization reaction time, by using adenovirus-infected cells as the indicator cells. The optimal detection of an adenovirus-specific nucleic acid was obtained by overnight hybridization reaction on sections embedded in Lowicryl K4M resin. Random-primed-labeled probes improved the reactivity. At least 60% of virus particles in paracrystalline arrays was found to contain viral DNA. These arrays in adenovirus-infected cells are useful in evaluating quantitatively the efficiency of protocols of EM-ISH. 相似文献