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The Study of Railroad Signal control system for old line speed elevation (기존선 속도향상을 위한 철도신호시스템의 동향 연구)

  • Kim You-Ho;Lee Hoon-Koo;Lee Soo-Hwan;Kim Young-Kyu;Baek Jong-Hyen
    • Proceedings of the KSR Conference
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    • 2005.11a
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    • pp.958-963
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    • 2005
  • Much research for speed elevation of old first move of internal railroad is achieved. Also, several fees of foreign flag age of forty years improvement of a signal system and development accomplish. This treatise examines about. improvement and development. of consisting signal system in internal. Also, examine about development for technological reduced scale of internal relationship and research propulsion system. Wish to present direction accordingly.

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Parental Controls and Antisocial Behavior of Children (부모의 통제유형과 자녀의 반사회적 행동과의 관계)

  • Kim, Sun Ae;Kim, Joon Ho
    • Korean Journal of Child Studies
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    • v.16 no.2
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    • pp.49-63
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    • 1995
  • The purpose of the present study was to investigate effective parental controls by age of child. The subjects participating in this study were 10, 12, 15, and 18-year-old school boys residing in Seoul. A total of 1,468 boys was used in the final analysis. Factor analysis and multiple regression of SPSS $PC^+$ were utilized to test the hypotheses. The findings of the analysis showed that the impact of various parental controls on antisocial behavior varied with developmental stages of the children. Younger boys were more susceptible to direct controls, while indirect controls proved more effective for older youngsters.

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How to Finance Fashion Venture Business at Start-up and Growing Stages

  • Kim, Moon-Sook
    • The International Journal of Costume Culture
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    • v.3 no.2
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    • pp.88-99
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    • 2000
  • Venture industry is becoming a driving force of Korean economy in the digital age of the 21 st century. The success of venture business depends on innovative technology, capital investment, and optimal environment providing industrial flexibility. Although venture business is starting to settle down in Korea, many barriers and challenges still remain. The current study analyzes the present status of venture business including fashion business and issues concerning the venture fund raising and provides prospective views to promote and improve venture industry in Korea.

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The Study on the Check-list of User Paid Welfare Housing for the Elderly (유료노인 주거 계획에 관한 평가 도구 개발)

  • 이현애;윤정숙
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2002.11a
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    • pp.173-178
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    • 2002
  • An increase in population of advanced age people according to medical development and progress of small family system by industrial development, changed our traditional large family system and paved way for creating a new dwelling culture in Korea. The purpose of this study are consisted of user paid welfare housing for elderly, pointing out the typical problems on present the elderly housing by check- list.

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A Competitive Equilibrium Model of the Market for Used Goods (내구재 시장의 경쟁 균형 모형)

  • Kim, Jae-Cheol
    • IE interfaces
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    • v.2 no.2
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    • pp.63-73
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    • 1989
  • The present paper determines the equilibrium price function of used goods and their carry-over age when there are heterogeneous firms with different factor prices. It is shown that the used good market enables more efficient use of durable goods and thereby gains from trades. It is also shown that firms with a lower interest rate and a higher wage rate specialize in using newer goods.

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Familial congenital myopathy with prominent decremental responses in repetitive nerve stimulation testing

  • Kim, Dayoung;Sunwoo, Il Nam;Oh, Jeeyoung
    • Annals of Clinical Neurophysiology
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    • v.23 no.1
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    • pp.53-55
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    • 2021
  • Congenital myasthenic syndromes (CMSs) are rare genetic disorders characterized by weakness and fatigue resulting from impaired neuromuscular transmission. Genetic testing can confirm the diagnosis for some types of CMS; however, variations in genotype, clinical phenotypes, age at disease onset, and responses to treatment make diagnosis very difficult. Here we present two adult patients who had significant decremental responses in repetitive nerve stimulation testing and multi-minicore pathology, and who responded to treatment with a cholinesterase inhibitor.

Effects of supplementary UV-B radiation on growth and protein biosyntheses in rice (Oryza sativa L.)

  • Takeuchi, Atsuko;Hidema, Jun;Kumagai, Tadashi
    • Journal of Photoscience
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    • v.9 no.2
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    • pp.332-334
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    • 2002
  • We examined the effects of supplementary ultraviolet-B (UV-B) radiation on the changes in synthesis and degradation of ribulose-I, 5-biphosphate carboxylase /oxygenase (Rubisco) and light-harvesting chlorophyll a/b binding protein of PSII (LHCII), as well as mRNA levels for small and large subunits of Rubisco (rbcS and rbcL, respectively) and LHCII (cab) with leaf age in UV-sensitive rice (Norin I) and UV-resistant rice (Sasanishiki). Both Rubisco and LHCII were actively synthesized until the leaf had fully expanded, and then decreased with leaf age. Synthesis of Rubisco, but not LHCII, was significantly suppressed by UV-B in Norin 1. The degradation of Rubisco was enhanced by UV-B around the time of the leaf maturation in the two cultivars. The levels of rbcS and rbcL were reduced by UV-B at the early leaf stages after emergence in both cultivars. The level of cab was first present at the highest level in the two cultivars, but drastically decreased due to UV-B treatment immediately after leaf emergence in Norin 1. It was proved that synthesis and degradation of Rubisco and LHCII greatly changed with leaf age: Rubisco synthesis was significantly suppressed by supplementary UV-B radiation at the transcription step during the early leaf stages. It was also suggested that the difference between the two rice cultivars in sensitivity to UV-B in the synthesis of Rubisco might be due to the specific suppression not only after transcription but also at transcription.

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Patients' Profile, Clinical Presentations and Histopathological Features of Colo-rectal Cancer in Al Hassa Region, Saudi Arabia

  • Amin, Tarek Tawfik;Suleman, Waseem;Al Taissan, Abdul Aziz;Al Joher, Abdul Latif;Al Mulhim, Othman;Al Yousef, Abdul Hameed
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.1
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    • pp.211-216
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    • 2012
  • Background: Patients' demographics, presenting clinical and histopathological features for colo-rectal cancer (CRC) are important factors for patients' outcome and disease prognosis. This study aimed to describe the pattern of CRC in terms of patients' demographics, main presenting symptoms and histopathological features in Al Hassa region of Saudi Arabia. Subjects and Methods: A retrospective hospital records-based study which included reviewing of patients' records diagnosed with CRC at three general hospitals in Al Hassa region, Saudi Arabia. A compilation form was designed to collect information regarding socio-demographics, age at diagnosis; referral sites and the main presentations at CRC diagnosis. sites and the main presentations at CRC diagnosis. Histopathological reports were reviewed to delineate the main cytopathologic features, prominent cytological characteristics, the presence of predisposing pathology, and disease stage. Results: Of the 142 cases with CRC, 15.5% and 33.1% were affected before 40 and 50 years of age respectively. Emergency rooms were main referral sites for CRC cases (31.0%). Right colon was affected in 16.9% while left colonic lesions accounted for 62.7%. Intestinal obstruction was the main presentations (41.5%), and 26.1% presented with symptoms indicating distant metastastic lesions. Adenocarcinoma was the predominant pathological lesions (86.6%). Metastastic CRC was diagnosed in 62.7%. Duke's staging showed that 22.5% and 40.1% of lesions were classified into C and D categories respectively. Conclusion: Saudi patients with CRC present late with distant metastasis, and advanced disease stage. A sizeable proportion of patients developed the lesions at relatively young age. Screening recommendations should be enacted and revised in response to current change with younger age of affection.

pH and Colour Characteristics of Carcasses of Broilers Fed with Dietary Probiotics and Slaughtered at Different Ages

  • Karaoglu, Mevulut;Aksu, M.I.;Esenbuga, N.;Macit, M.;Durdag, H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.4
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    • pp.605-610
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    • 2006
  • The objective of the present experiment was to determine the effects of slaughtering at different ages and the use of a commercial probiotic (115-Biogallinox) in broiler diets on the color properties of carcasses, during the first 24 h following slaughter. Ross 308 male broiler chickens obtained from a commercial hatchery were raised to either 35 or 42 days of age. Chickens were fed with different levels of probiotic ($P_0$: 0.0%, $P_1$: 0.1% and $P_2$: 0.2%) containing Saccharomyces cerevisiae during the experimental period. At the end of the trial all birds were slaughtered and then stored at $3^{\circ}C$ for 24 h. The pH and skin colour of carcasses were determined 1, 3, 7, 10, 13, 17 and 24 h after slaughter. Although the use of probiotic and post-mortem ageing time affected the pH (p<0.01), it was not affected by slaughter age (35 and 42 days) (p>0.05). The highest pH values occurred in carcasses of broilers fed 0.2% probiotic. The pH values of carcasses decreased with post-mortem ageing time (p<0.01). Main factors (treatment, slaughter age and post-mortem ageing time) had an effect on colour ($L^*$, $a^*$ and $b^*$) values (p<0.01). $L^*$ values of 42d-old slaughter and $P_2$ group were lower than those of 35d-old slaughter and other probiotic groups. The $a^*$ and $b^*$ values of 35d-old slaughter were lower than those of 42d-old slauhgter. The $a^*$ and $b^*$ values increased during post-mortem ageing (p<0.01). It was determined that changing of the colour traits of broiler carcasses was correlated with probiotic, pH and post-mortem ageing time. Also, it was observed that darkness of carcass colour increased as time progressed.

Comparison of growth performance of Berkshire purebreds and crossbreds sired by Hereford and Tamworth breeds raised in alternative production system

  • Park, Hyeon-Suk;Spann, Kristal;Whitley, Niki;Oh, Sang-Hyon
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.9
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    • pp.1358-1362
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    • 2017
  • Objective: The objective of the present study was to compare growth performance of Berkshire purebred pigs (BB), Hereford (HB) and/or Tamworth (TB) sired Berkshire crossbred pigs reared in a hoop structure in two experiments. Methods: In the first experiment, BB was compared to TB while HB and TB were compared in the second. Body weights (BW) were recorded at 3 days of age and every 28 days from birth until 140 days of age. There was no significant difference between the BW of BB and TB, but HB was heavier than TB by 84 days of age. Least square means of average daily gain (ADG) were evaluated using one-way analysis of variance. Results: The mean parity (${\pm}$standard deviation) of the sows was $3.42{\pm}2.14$ and a total of 45 farrowing occurred from year 2012 to 2014. The mean number of total born, number born alive, number of mummies, and number weaned were $9.23{\pm}2.52$, $7.87{\pm}2.53$, $0.04{\pm}0.21$, and $5.94{\pm}2.74$, respectively. Parity did not have a significant effect on the growth performance of the pigs. For BB and TB, there was only one time frame in which there was a significant difference in the ADG: between 28 and 56 days of age. For HB and TB, the overall ADG of HB was significantly greater than the total ADG of TB. Conclusion: The breed of the sire did not affect the growth performance of the progeny between Berkshire purebreds and Tamworth${\times}$Berkshire crossbreds. The breed of the sire did have an effect between Hereford and Tamworth sired Berkshire crossbreds (p<0.05). The Hereford sired pigs were found to have increased growth performance compared to Tamworth sired.