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521.
Akira?HaraEmail author Takumi?Ichimura Katsumi?Yoshida 《Journal of Intelligent Manufacturing》2005,16(6):645-661
Much of the research on extracting rules from a large amount of data has focused on the extraction of a general rule that
covers as many data as possible. In the field of health care, where people’s lives are at stake, it is necessary to diagnose
appropriately without overlooking the small number of patients who show different symptoms. Thus, the exceptional rules for
rare cases are also important. From such a viewpoint, multiple rules, each of which covers a part of the data, are needed
for covering all data. In this paper, we describe the extraction of such multiple rules, each of which is expressed by a tree
structural program. We consider a multi-agent approach to be effective for this purpose. Each agent has a rule that covers
a part of the data set, and multiple rules which cover all data are extracted by multi-agent cooperation. In order to realize
this approach, we propose a new method for rule extraction using Automatically Defined Groups (ADG). The ADG, which is based
on Genetic Programming, is an evolutionary optimization method of multi-agent systems. By using this method, we can acquire
both the number of necessary rules and the tree structural programs which represent these respective rules. We applied this
method to a database used in the machine learning field and showed its effectiveness. Moreover, we applied this method to
medical data and developed a diagnostic system for coronary heart diseases 相似文献
522.
A surface-active rhodamine dye, combined with arachidic acid or with arachidic acid and merocyanine dye, is squeezed out from the monolayer at the air- water interface above a certain surface pressure and forms a two-storey structure with each component possessing an ordered molecular arrangement. Photoelectrical measurements have revealed that the two-storey structure composed of rhodamine, merocyanine and arachidic acid can be deposited on solid substrates to form an alternating p-n hetero Langmuir-Blodgett film, which is an entirely new way of constructing p-n junction heterostructures. 相似文献
523.
Nonionic surfactants of the polyethylene oxide type are precipitated by carboxy vinyl polymer (CVP) in its acid form. While
the reduced viscosity of the CVP solution is affected more markedly by a surfactant with a longer polyethylene oxide chain,
the binding to CVP of the nonionic surfactants with the same hydrophobic parts occurs more effectively with shortening of
the polyethylene oxide chain or with lowering of the critical micelle concentration. The structure of the complexes formed
is discussed. 相似文献
524.
Summary: In‐situ rheo small‐angle X‐ray scattering (SAXS), rheo‐light scattering, and rheo‐optical methods were employed to investigate the resultant morphology of polyhydroxybutyrate (PHB) under varying shear flow conditions. Immediately after shear flow application, a highly orientated structure emerged and row nucleation was identified at high shears. Only the initial stages of shish growth (we term the partial shish) were confirmed at excessively high shear conditions. However, only the kebabs were identified at medium shears, below this neither the shish nor kebab were observed. We believe this partial shish is a result of insufficient stability resulting from using such a low‐molecular‐weight species. We conclude that from our observations the shish kebab mechanism appears to display similarities to the Janeschitz‐Kriegl model of precursor formation.
525.
526.
We report a case of fixed drug eruption due to allylisopropylacetylurea. A 21-year-old female developed purplish-red round eruptions on her neck and left thigh after taking an analgesic containing isopropylantipyrine, allylisopropylacetylurea, phenacetin and anhydrous caffeine. Patch testing with the analgesic and its ingredients on the eruptive area showed positive reactions to the analgesic and allylisopropylacetylurea, while patch testing on the non-eruptive area showed negative reactions. We diagnosed her condition as a fixed drug eruption due to allylisopropylacetylurea in an analgesic. 相似文献
527.
M Ogino S Namie Y Ozono M Miyazaki T Harada S Kohno 《Canadian Metallurgical Quarterly》1998,13(12):3126-3131
BACKGROUND: Carpal tunnel syndrome (CTS) is a major complication in long-term haemodialysis patients and is thought to be a form of haemodialysis-associated amyloidosis. CTS may be due to the deposition of amyloid as well as local inflammatory process in the carpal tunnel. Although macrophage-like cells infiltrating the tenosynovium of carpal tunnel are known to express mRNA for adhesion molecules, the level of expression of adhesion molecules on peripheral blood mononuclear cells (PBMC) in patients with CTS is unknown. METHODS: We compared the expression of very late activation antigen (VLA-4) on PBMC by flow cytometry in 14 patients on haemodialysis (6-21 years) with CTS, nine on haemodialysis (1-6 years) but without CTS and six patients on chronic ambulatory peritoneal dialysis (CAPD, 1-5 years) without CTS. RESULTS: The expression of VLA-4 on peripheral lymphocytes was not different among the groups. However, the FACScan fluorescence histogram of VLA-4 expression on peripheral monocytes showed a bimodal pattern in the CTS group, and the rate of the high intensity portion of the expressed VLA-4 on monocytes was significantly higher in CTS than other groups (P<0.05). The observed differences were not based on differences in the type of the dialysis membrane. We also examined the adhesion of PBMC to fibronectin-coated plates. The number of adherent PBMC was significantly higher in patients with CTS than in other groups (P<0.05). CONCLUSION: Our results suggest that increased expression of VLA-4 on peripheral monocytes and augmented adhesion capacity of PBMC to fibronectin may be involved in the development of CTS in haemodialysis patients. 相似文献
528.
529.
AE Busch S Waldegger T Herzer G Raber E Gulbins T Takumi K Moriyoshi S Nakanishi F Lang 《Canadian Metallurgical Quarterly》1995,270(8):3638-3641
Slowly activating IsK channels were expressed in Xenopus oocytes and exposed to oxidative agents. Oxidative treatment reduced the resulting current IsK, while no inhibition was observed for IsK protein mutants carrying a Ser mutation instead of a highly conserved Cys residue in the intracellular domain. In contrast, Hg2+, which may not only oxidize thiol groups but also form chelates with dibasic amino acids, caused a use-dependent, positive regulation of IsK. This effect was reversed in an IsK protein mutant with a deletion in the extracellular domain. These data suggest opposite effects of peroxides and Hg2+ on IsK, a peroxide-mediated IsK inhibition by intracellular oxidation and a Hg(2+)-mediated IsK increase, caused by extracellular Hg2+ chelation of the IsK protein. 相似文献
530.
M Inoue A Hirakata D Miki T Hida F Kohda K Ogino 《Canadian Metallurgical Quarterly》1996,100(5):358-362
Four eyes of four patients with Coats' disease underwent vitrectomy because of exudative or tractional detachments involving the macula or premacular fibrosis. All cases had gelatinous vitreous and had no complete posterior vitreous detachment. The exudates decreased and the retina reattached after removing vitreous traction and coagulating abnormal vessels with endodiathermy and not removing subretinal fluid in 3 eyes with retinal detachment. In one eye with tractional detachment, retinal breaks were found beneath the proliferative membrane during the initial vitrectomy procedure. This eye needed multiple operations because of recurrent traction by the remaining peripheral vitreous. Exudation into the vitreous and vitreous traction may cause mutual progression in these eyes, and vitrectomy is an effective treatment, although there are difficulties in removing vitreous traction completely. 相似文献