• Title/Summary/Keyword: calculi

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WEAK CONVERGENCE THEOREMS IN FEYNMAN'S OPERATIONAL CALCULI : THE CASE OF TIME DEPENDENT NONCOMMUTING OPERATORS

  • Ahn, Byung Moo
    • Journal of the Chungcheong Mathematical Society
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    • v.25 no.3
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    • pp.531-541
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    • 2012
  • Feynman's operational calculus for noncommuting operators was studied by means of measures on the time inteval. And various stability theorems for Feynman's operational calculus were investigated. In this paper we see the time-dependent stability properties when the operator-valued functions take their values in a separable Hilbert space.

Biologic Activities of Lysimachiae Herba II-Analgesic and antiinflammatory effects of ethyl acetate fraction and a phenyl propanoid component

  • Choi, Jong-Won;Park, Jong-Cheol;Lee, Chung-Kyu
    • Natural Product Sciences
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    • v.3 no.2
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    • pp.135-140
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    • 1997
  • The methanolic extract of Lysimachiae christinae Herba, which has been used for diuretic, calculi remover and jaundice remedy in oriental countries, was found to possess analgesic and antiinflammatory effect in Freund's complete adjuvant treated rat. From ethyl acetate fraction of the herb a phenyl propanoid isoferulic acid was isolated as an active principle.

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A Case Report on Urethrotomy for Treatment of Urethral Calculi in Korean Cattle (한우의 요도결석증 치료를 위한 요도절개시술일례)

  • Kwun Hae Byeng
    • Journal of the korean veterinary medical association
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    • v.16 no.1112
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    • pp.369-374
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    • 1980
  • The treatment of a Korean cattle aged 1.8 years which had the urinary calculus in the middle region between the scrotum and the anus was carried out in Kyungju, 1978. This case is very rare in animal surgery but the result of' the surgery was very effecti

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FEYNMAN′S OPERATIONAL CALCULI FOR TIME DEPENDENT NONCOMMUTING OPERATORS

  • Brian Jefferies
    • Journal of the Korean Mathematical Society
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    • v.38 no.2
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    • pp.193-226
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    • 2001
  • We study Feynman's Operational Calculus for operator-valued functions of time and for measures which are not necessarily probability measures; we also permit the presence of certain unbounded operators. further, we relate the disentangling map defined within the solutions of evolution equations and, finally, remark on the application of stability results to the present paper.

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Non-associative fuzzy-relevance logics: strong t-associative monoidal uninorm logics

  • Yang, Eun-Suk
    • Korean Journal of Logic
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    • v.12 no.1
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    • pp.89-110
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    • 2009
  • This paper investigates generalizations of weakening-free uninorm logics not assuming associativity of intensional conjunction (so called fusion) &, as non-associative fuzzy-relevance logics. First, the strong t-associative monoidal uninorm logic StAMUL and its schematic extensions are introduced as non-associative propositional fuzzy-relevance logics. (Non-associativity here means that, differently from classical logic, & is no longer associative.) Then the algebraic structures corresponding to the systems are defined, and algebraic completeness results for them are provided. Next, predicate calculi corresponding to the propositional systems introduced here are considered.

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A CONVERGENCE THEOREM FOR FEYNMAN′S OPERATIONAL CALCULUS : THE CASE OF TIME DEPENDENT NONCOMMUTING OPERATORS

  • Ahn, Byung-Moo;Lee, Choon-Ho
    • Communications of the Korean Mathematical Society
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    • v.19 no.4
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    • pp.721-730
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    • 2004
  • Feynman's operational calculus for noncommuting operators was studied via measures on the time interval. We investigate that if a sequence of p-tuples of measures converges to another p-tuple of measures, then the corresponding sequence of operational calculi in the time dependent setting converges to the operational calculus determined by the limiting p-tuple of measures.

Short-term Supplementation with a Trace Mineral-fortified Microbial Culture May Increase Trace Minerals in Longissimus dorsi Muscle and Prevent Incidence of Urolithiasis in Finishing Hanwoo Steers

  • Kim, Young Il;Ahmadi, Farhad;Lee, Sang Moo;Lee, Youn Hee;Choi, Do Young;Kwak, Wan Sup
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.36 no.3
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    • pp.191-198
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    • 2016
  • This study evaluated the effects of TMC (trace mineral-fortified microbial culture) supplementation on growth performance, carcass characteristics, and meat quality parameters of Hanwoo steers during the last 4 months of finishing period. The TMC was a combination of 0.4% trace minerals, 20.0% Na-bentonite, and 79.6% feedstuffs, which was inoculated with a mixed microbial culture (Enterobacter ludwigii, Bacillus cereus, B. subtilis, Lactobacillus plantarum, and Saccharomyces cerevisiae). Twenty-four steers were blocked by initial BW ($634{\pm}16kg$) and randomly allocated to one of two treatments (control vs. 3.3% TMC). The effect of TMC supplementation on the growth performance was not significant. There was no incidence of urolithiasis in TMC-fed steers. However 3 out 12 steers (25%) fed the control diet were observed to have urinary calculi. The carcass yield and meat quality parameters were not affected by TMC supplementation, however marbling score was increased in TMC-fed steers (P = 0.08). There was no effect of TMC treatment on the chemical composition of longissimus dorsi muscle (LM). The TMC supplementation increased concentrations of manganese (P < 0.01), cobalt (P = 0.02), iron, and copper (P = 0.06) in LM. In conclusion, TMC treatment did not negatively affect growth performance and meat quality parameters, and positively affected the trace minerals profile of LM.

Usefulness of Twinkling Artifacts in Color Doppler Ultrasonography (컬러 도플러 초음파에서 Twinkling artifacts의 유용성)

  • Sim, Hyun-Sun;Kwon, Kyung-Tae
    • The Journal of the Korea Contents Association
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    • v.16 no.10
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    • pp.291-298
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    • 2016
  • The aim of the study was to investigate the diagnostic value of the color Doppler twinkling artifact in disease of urinary system. The intensity of twinkling artifact(TA) with color Doppler was classified into 3 levels, 0(non-TA) to 3(distinct TA). In the in vitro study, acorn jelly with various materials on top was examined using color Doppler at B-mode sonography in a water bath for TA. 31 patients with diagnosis of urinary calculi(renal stones 16, urinary stones 15) based on B-mode sonography were studied in vivo for TA. The materials with rough surfaces such as salt, screw and cubics at B-mode sonography with color Doppler contributed to causing TA. At B-mode sonography without color Doppler 37% of renal stones and 60% of ureter stones were detected. but at B-mode sonography with color Doppler TA was demonstrated for all cases. Superficial roughness of materials affected occurrence of TA at B-mode sonography with color Doppler. Therefore, TA at B-mode sonography without color Doppler could play a role in confident diagnosis of the disease of urinary system.

Removal of Submandibular Stones via Intraoral approach (구강내 접근을 이용한 악하선 타석의 제거)

  • Lee, Sung-Bu;Lee, Jong-Cheol;Choi, Seung-Ho;Kim, Sang-Yoon;Nam, Soon-Yuhl
    • Korean Journal of Bronchoesophagology
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    • v.14 no.1
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    • pp.23-28
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    • 2008
  • Background and Objectives : Traditionally, the excision of submandibular gland (SMG) has been commonly used for treatment of calculi in the proximal duct or gland parenchyma. Over the last 10 years several new minimally invasive techniques including lithotripsy, sialendoscope were introduced in the treatment of sialolithiasis. But these have some limitation on large, infected calculi. The aim of this study is to assess the intraoral treatment of submadibular stones. Subjects and Method : The records of one hundred and seventy-three patients who underwent intraoral removal of submadibular sialolithiasis between June 1, 1989 and July 31, 2006 were retrospectively reviewed. Results : Stone location was distal to the edge of the mylohyoid muscle in 127 patients and proximal to gland in 48 patients (mean size of sialoliths, 7.1mm [range 3.0-25mm]). The complete removal of stones was observed in 170 (97.1%) patients regardless of size and location. Recurrence of lithiasis was found in 8 patients (then treated with intraoral removal in 5 patientsand resection of SMG (submandibular glands) in 3 patients). Acalculous sialadenitis in 9 patients (5.1%) and cyst formation in 2 patients (1.1%) was found. But no evidence of postoperative complications including hemorrhage, fistula, damage to lingual nerve were found. Conclusion : The intraoral removal of submandibular stone is useful in preservation of submandiblar function and effective in palpable stones regardless of location, size.

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The analysis about the course of studying renal stones -On the basis of incurable and relapse renal stones' differentiation of symptoms and signs- (요로결석(尿路結石) 연구동향(硏究動向)에 대한 분석(分析) - 난치(難治)와 재발(再發)의 판증(辦證)을 중심으로 -)

  • Lee, Jung-Won;Kim, Chueng-Jung;Cho, Chung-Sik
    • Journal of Haehwa Medicine
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    • v.14 no.2
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    • pp.143-151
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    • 2005
  • Gobjectives and Methods to investigate into the course of incurable and relapse renal stones' differentiation of symptoms and signs and to effectively improve treatment of incurable and relapse renal stones through Oriental Medicine. To search for the papers about treatment of incurable and relapse renal stones from 1994 till 2004, and re-search papers about treatment for indicated differentiation of disease. Result and conclusions : 1. It is the kidney vacuity additionally the deficiency of qi(氣) in middle-burner that the incurable and relapse renal stones' differentiation of disease. 2. The cause is taking an overdose of attacking renal stones to eliminate dampness and heat medicine, aging, chrome disease. a sex act excess, insufficiency of congenital qi(氣), insufficient exercise, wrong treatment and stress. 3. Herb medicines are constituted supplementing kidney drugs for inhibition of renal stone's creation, drugs to diuresis and dissolve calculi, and drugs 10 exclude stasis blood(瘀血) on account of renal stones. 4. Anti-renal stone measures me sufficiently drinking water, not eating greasy food. taking medicine for supplementing kidney, diuresis and dissolve calculi by periods, and drinking substitute water to boll down medical herb as Lysimachiae Herba (金錢草) Polygoni Avicularis Herba(篇蓄).

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