• Title/Summary/Keyword: Supernormal

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Egg Retrieval as a Source of Nests with Supernormal and Mixed Egg Clutch in Little Terns Sterna albifrons (쇠제비갈매기 Sterna albifrons의 과산란 및 이종 알 혼합 둥지 생성 원인으로서 알 회수 행동)

  • Kim, Jeong-Hoon;Nam Hyung-Kyu;Fulton Graham R.;Yoo Jeong-Chil
    • Journal of Ecology and Environment
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    • v.29 no.6
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    • pp.545-550
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    • 2006
  • Ten supernormal clutches of little terns Sterna albifrons and seven clutches having mixed eggs by little terns and kentish plovers Charadrius alexandrinus were recorded during the breeding seasons of 2003$\sim$2005 at Ganwol lake, Hongsung-gun, Chungcheongnam-do, Korea. The frequency of egg retrieval by Little Terns was higher after the second egg laying regardless of the clutch size and incubation stage. The frequency of egg retrieval was high at all incubation stage. When experimental eggs were placed within 15 cm from the nests, the percentage of egg retrieval was highest (almost 100%). However the percentage dropped rapidly over 35$\sim$55 cm range and finally to zero at 60 cm distance. Little terns retrieved all kinds of eggs set near their nests regardless of its kind or size. This study suggests that egg retrieval by little terns may be a source of the nest with supernormal and mixed egg clutch observed in this species.

A Study on Nerd-chic Look in Modern Fashion (현대패션에 나타난 너드시크룩)

  • Lee, Jin Min;Lee, Jung Ho
    • Journal of the Korean Society of Clothing and Textiles
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    • v.42 no.1
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    • pp.58-73
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    • 2018
  • This study examines the socio-cultural background of a Nerd-chic look, establishes a conceptual foundation for Nerd-chic look and examines its aesthetic characteristics in order to understand the latest modern fashion phenomenon. Nerd-chic look is a combination of 'nerd' as a popular collective style and 'chic', which refers to the aesthetic value of a costume style. It is a look that is expressed in fashion that reflects the contemporary aesthetic desires based on a nerd's external features and inner values. The aesthetic characteristics of the Nerd-chic look are as follows. First, the Nerd-chic look express the aesthetic characteristic of bricolage that transforms the familiar meaning of an outdated nerd style to 'chic' image by the rearrangement of the typical nerd style and retro fashion elements. Second, the Nerd-chic look express the aesthetic characteristic of supernormal, as a plain, restrained beauty based on the Normcore fashion mood, disassembly and recombination of ordinary items, fit-free styling, and asexual styling. Third, the Nerd-chic look expresses the aesthetic characteristics of deluxe poor, which rejects stereotypical and expensive luxury and presents a more contemporary and futuristic spirituality. It is expressed in oversized shapes that are not intended to fit the body and show incompatibility between fashion items or way of dressing.

Breeding Status and Ecology of Saunders' Gulls (Larus saundersi) in Songdo Reclaimed Land, West Coast of Korea (서해안 송도매립지에서 번식하는 검은머리갈매기의 현황과 번식생태)

  • Kwon, Young-Soo;Chung, Hoon
    • Ocean and Polar Research
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    • v.31 no.3
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    • pp.277-282
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    • 2009
  • Saunders' gulls (Laurs saundersi) which are listed as globally vulnerable species on the IUCN Red List are distributed in East Asia and breed mainly in China and Korea. Their population is estimated to be between 7,100 to 9,600. Songdo reclaimed lands in the western coast of South Korea are the main breeding sites for these species. However, most of these breeding sites have been seriously disturbed in the last several years because of new urban development constructions. This study was conducted to provide baseline data on the breeding ecology of Saunders' gulls. Since 1998, the breeding population has rapidly increased in South Korea, with the number of nests rising from 85 nests in 2000 to 185 nests in 2005. Egg volume is more variable than breadth or length. Clutch size, hatching and breeding success were $2.9{\pm}0.81$ (n=182, mean$\pm$sd.), 48.07% (75 hatched egg/156 eggs) and 29.08% (155 fledglings/533 eggs), respectively. Factors affecting breeding failure were predation, rainfall, starvation and supernormal clutches. These results are provided along with other cited literature to argue for conservation of Saunders' gulls.

Effects of Supplementary Copper-Chelate on the Performance and Cholesterol Level in Plasma and Breast Muscle of Broiler Chickens

  • Paik, I.K.;Seo, S.H.;Um, J.S.;Chang, M.B.;Lee, B.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.12 no.5
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    • pp.794-798
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    • 1999
  • An experiment was conducted to determine the effects of supernormal level of copper (Cu) from different supplementary sources on the performance, cholesterol level in plasma and breast muscle, and accumulation of fat and Cu in broilers. In a 5 wk feeding trial, two hundred forty hatched male broiler chickens were assigned to four dietary treatments: control diet containing 10 mg/kg supplementary Cu, control diet plus 250 mg/kg Cu from $CuSO_4$ ($CuSO_4-250$), control diet plus 125 mg/kg Cu from Cu-methionine chelate (Cu-Met-125), and control diet plus 250 mg/kg Cu from Cu-methionine chelate (Cu-Met-250). Weight gain in Cu-Met-125 treatment and Cu-Met-250 treatment were not different, but they were significantly (p<0.05) greater than that in $CuSO_4-250$ treatment. Plasma total cholesterol and reduced glutathione (GSH) in blood were significantly reduced by supplementation of $CuSO_4-250$, but were not significantly affected by Cu-Met supplementations. Plasma HDL cholesterol, plasma triglycerides and breast muscle cholesterol were not significantly affected by Cu supplementation. $CuSO_4-250$ improved metabolizability of crude fat, which resulted in low abdominal fat pad weight. Cu from Cu-Met was better absorbed and accumulated more in the breast muscle and lesser in the liver compared with Cu from $CuSO_4$.

Alterations in Left ventricular End-systolic Wall Stress During Short-term Follow-up After Correction of Isolated Congenital Aortic Stenosis (선천성 대동맥 협착증의 술전 및 술후 단기간의 수축말기 좌심실 내벽 스트레스의 변화)

  • 김시호
    • Journal of Chest Surgery
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    • v.33 no.10
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    • pp.777-784
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    • 2000
  • Congenital aortic stenosis in children is characterized by "excessive" left ventricular hypertrophy with reduced left ventricular systolic wall stress that allows for supernormal ejection performance. We hypothesized that left ventricular wall stress was decreased immediately after surgical correction of pure congenital aortic stenosis. Also measuring postoperative left ventricular wall stress was a useful noninvasive measurement that allowed direct assessment for oxygen consumption of myocardium than measuring the peak systolic pressure gradient between ascending aorta and left ventricle for the assessment of surgical results. Material and Method: Between September 1993 and August 1999, 8 patients with isolated congenital aortic stenosis who underwent surgical correction at Yonsei cardiovascular center were evaluated. There were 6 male and 2 female patients ranging in age from 2 to 11 years(mean age, 10 years). Combined Hemodynamic-Ultrasonic method was used for studying left ventricular wall stress. We compared the wall stress peak systolic pressure gradient and ejection fraction preoperatively and postoperatively. Result: After surgical correction peak aortic gradient fell from 58.4${\pm}$17.6, to 23.7${\pm}$17.7 mmHg(p=0.018) and left ventricular ejection fraction decreased but it is not statistically significant. In the consideration of some factors that influence left ventricular end-systolic wall stress excluding one patient who underwent reoperation for restenosis of left ventricular outflow tract left ventricular end-systolic pressure and left ventricular end-systolic dimension were fell from 170.6${\pm}$24.3 to 143.7${\pm}$27.1 mmHg and from 1.78${\pm}$0.4 to 1.76${\pm}$0.4 cm respectively and left ventricular posterior wall thickness was increased from 1.10${\pm}$0.2, to 1.27${\pm}$0.3cm but it was not statistically singificant whereas left ventricular end-systolic wall stress fell from 79.2${\pm}$24.9 to 57.1${\pm}$27.6 kdynes/cm2(p=0.018) in 7 patients. For one patient who underwent reoperation peak aortic gradient fell from 83.0 to 59.7 mmHg whereas left ventricular end-systolic wall stress increased from 67.2 to 97.0 kdynes/cm2 The intervals did not change significnatly. Conclusion ; We believe that probably some factors that are related to left ventricular geometry influenced the decreased left ventricular wall stress immediately after surgical correction of isolated congenital aortic stenosis. Left ventricular wall stress is a noninvasive measurement and can allow for more direct assesment than measuring peak aortic gradient particularly in consideration of the stress and oxygen consumption of the myocardium therefore we can conclude it is a useful measurement for postoperative assessment of congenital aortic stenosis.

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