• Title/Summary/Keyword: shortening

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Studies on the non-surgical embryo collection by shortening of uteri in swine I. Effect of uterus shortening on the pvaries, the length of uterine horns and the recovery of embryos (돼지에 있어서 자궁각 단축술에 의한 수정란의 비외과적 채란에 관한 연구 I. 자궁각 단축이 난소, 자궁각 길이와 수정란의 회수에 미치는 영향)

  • 김희석;정종태
    • Journal of Veterinary Clinics
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    • v.14 no.2
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    • pp.223-229
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    • 1997
  • This study was carried out to determine the effect of uterus shortening on the pvaries, the length of uterine horn and the recovery of embryos. The length of the shortened uterine horns increased more in part of uterine tip from connecting part for shortening than in base (P<0.05), and collection of embryos was also difficult in gilts because of its narrow pelvis. The embryos collected surgically from gilts with shortened uterine horns were developed into 2~8cells (87.5%) 3days and 4cell~morula (88.9%) 5days after mating.

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An Introduction of IMS(Intramuscular Stimulation Therapy) with Theoretcial Basis and Clinical Applications (IMS(Intramuscular Stimulation Therapy)의 이론적 배경과 임상적 운용에 대한 고찰)

  • Kwon, Ki-Rok;Gok, Kyung-Seung;Kim, Sung-Wook
    • Journal of Pharmacopuncture
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    • v.6 no.2
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    • pp.159-164
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    • 2003
  • Results : 1. The most important concept of IMS is chronic pain illness that may develop into hypersensitivity of the nerves, i.e., neuropathy. 2. Muscle shortening may be triggered by stress, including emotional, physical, external, and internal factors. 3. Muscle shortening increases mechanical tension on the muscles as well as inducing abrasion of the tissues by stretching ligament, tendon, cartilage, bone, and etc. 4. Pain from neuropathy is normally manifested on musculoskeletal system and spasm or shortening play as the central axis of this pain. 5. Neuropathy often appears at the nerve root level and the most important decisive factor of radiculopathy is muscle shortening. 6. Spondylosis is the most common cause of radiculopathy. 7. The most significant treatment principle of IMS is to relieve muscle shortening and remove stimulating determinant from the vertebrae. 8. Dry needling is quite effective for treating various pain caused by muscle shortening.

Effects of dietary fish oil and trans fat on rat aorta histopathology and cardiovascular risk markers

  • Park, Seon-Hye;Park, Yong-Soon
    • Nutrition Research and Practice
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    • v.3 no.2
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    • pp.102-107
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    • 2009
  • Fish oil and shortening have been suggested to have opposite effects on cardiovascular disease (CVD). This study investigated the effect of shortening and fish oil on CVD risk factors and aorta histopathology, and the association between risk factors and aorta histopathology. Male Wister rats (n=30) were fed an AIN-93G diet containing 20% fat in the form of fish oil, shortening, or soybean oil for 4 weeks. Total cholesterol (TC), triacylglyceride (TG), and C-reactive protein levels were significantly (P<0.001) lower in the fish oil than in soybean oil and shortening groups. HDL-cholesterol concentrations were significantly different (P<0.001) between groups. In addition, LDL-cholesterol levels were significantly (P<0.001) lower in the fish oil and shortening groups than in the soybean oil group. Insulin and glucose concentrations did not differ among groups. Effect of dietary fat on tissue fatty acid composition significantly differed in abdominal fat and brain compared with RBC, heart, kidney and liver. The aortic wall was significantly (P=0.02) thinner in the fish oil group than in the soybean oil and shortening groups. The aortic wall thickness was positively correlated with TG and TC, but negatively with EPA + DHA levels of all tissues. These results suggested that fish oil had protective effects on aorta histopathology by hypolipidemic action in this rat model.

Analysis of Material Tests for Predicting and Correcting the Shortening of Vertical Members (수직부재 축소량 예측 및 보정을 위한 재료시험 분석)

  • Park, Hee-Gon;Kwon, Hae-Won;Lee, Jin-Woo;Bae, Yeoun-Ki;Youn, Kang-Sup;Lee, Jae-Sam
    • Proceedings of the Korea Concrete Institute Conference
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    • 2009.05a
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    • pp.173-174
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    • 2009
  • With the recent emergence of high rise buildings, this study was conducted in order to examine shortening, which has been used only in civil engineering structures, in such buildings. Examination of the shortening of vertical members is basically focused on deformations caused by load applied to concrete, material characteristics, etc. Shortening is analyzed through calculating parameters from the factors or characteristics of concrete, but analysis in the aspect of material tests has been somewhat unsatisfactory. Thus, this study purposed to analyze basic material test items for correcting the shortening of vertical members, namely, columns, to determine the reliability of material tests before parameter calculation for correcting shortening, and to examine the performance of material tests.

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The Analysis on Relation between Hamstring Length and Static Uprighting Balance (넙다리 뒤근육의 길이와 정적 기립균형과의 상관성 분석)

  • Nam, Kun-Woo
    • Journal of Korean Physical Therapy Science
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    • v.18 no.1
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    • pp.51-60
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    • 2011
  • Purpose: The purpose of this study was to investigate hamstring length during static uprighting position using weight distribution ratio. Methods: Ninety-six volunteers(56 males) were participated. The active knee extension test(AKE) was measured 3 times on both legs. The mean score of AKE was obtained. Then, the measurement of weight distribution ratio was observed 3 times on both legs, and its mean value was also calculated. Subjects were divided four groups based on their hamstring length measurement; both hamstring shortening group, left hamstring shortening group, right hamstring shortening group and normal hamstring length group. One-way ANOVA was employed to analyse collected data. Pearson's correlation was also hired to see any relationship between the hamstring length and the weight distribution. Results: In anterior/left area and posterior/right area, both hamstring shortening group left hamstring shortening group were superior to right hamstring shortening group and normal hamstring length group. Significant difference was existed statistically(p<.05) between groups. The correlation analysis between hamstring length and weight distribution ratio has not been shown any significant findings(Pant/post=0.733, Plt/rt=0.135). Conclusion: The results of the study may be applied to therapeutic management in posture and movement skill in musculoskeletal physical therapy.

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Studies on the Non-surgical Embryo Collection by Shortening of Uterine Horn in Swine II. Effect of Uterus Shortening on the Estrus Cycle and the Level of Progesterone and Prostaglandin Fao in Serum (돼지에 있어서 자궁각 단축술에 의한 수정란의 비외과적 채란에 관한 연구 II. 자궁각 단축이 발정주기 및 혈청 중 호르몬 수준변화에 미치는 영향)

  • 김희석
    • Journal of Veterinary Clinics
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    • v.15 no.1
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    • pp.94-99
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    • 1998
  • This study was carried out to determine the effects of uterus shortening on the duration required for estrus, the number of ovulation and the level of serum progesterone and prostaglandin $F_{2}{\alpha} (PGF_{2}{\alpha} $). The duration required for estrus after the surgical shortening of uterine horns and the interval between the following estrus was not affected by the surgical treatment but affected by luteal and follicular phase. The number of ovulations were increased by induction of superovulation to gilts with shortened uterine horns compared to the control. Serum progesterone concentration during the luteal phase was higher than that during the follicular phase with no difference between the control and me horns than that of the control. Findings of this study indicate that luteal formation and regressions and estrus cycle were normal when the unconnected parts of uterine horns were left in abdominal cavity. Therefore surgical shortening of uterine horns of sows helps embryo collections by non-surgical methods.

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Analytical correction of vertical shortening based on measured data in a RC high-rise building

  • Song, Eun-seok;Kim, Jae-yo
    • Advances in concrete construction
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    • v.10 no.6
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    • pp.527-536
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    • 2020
  • In this study, a process is proposed to calculate analytical correction values for the vertical shortening of all columns on all floors in a high-rise building that minimizes the error between the structural analysis predictions and values measured during construction. The weight ratio and the most probable value were accordingly considered based on the properties of the shortening value analyzed at several points in each construction stage and the distance between these measured points and unmeasured points at which the shortening was predicted. The effective range and shortening value normalization were considered using the column grouping concept. These tools were applied to calculate the error ratio between the predicted and measured values on a floor where a measured point exists, and then determine the estimated error ratio and estimated error value for the unmeasured point using this error ratio. At points on a floor where no measured point exists, the estimated error ratio and the estimated error value were calculated by applying the most probable value considering the weight ratio for the nearest floor where measured points exist. In this manner, the error values and estimated error values can be determined at all points in a structure. Then, the analytical correction value, defined as this error or estimated error value, was applied by adding it to the predicted value. Finally, the adequacy of the proposed correction method was verified against measurements by applying the analytical corrections to all unmeasured points based on the points where the measurement exists.

Paleostress of the Joseon and Pyeongan Supergroups in South Korea using the New Calcite Strain Gauge (NCSG)

  • Jang, Bo-An;Ko, Chin-Surk;Kim, Jung-Han;Kim, Cheong-Bin;Kang, Seong-Seung
    • The Journal of Engineering Geology
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    • v.24 no.3
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    • pp.311-322
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    • 2014
  • Limestone bodies under the tectonic environment have experienced various tectonic processes, and also changed the stress state. In this study, calcite twins found in limestones of the Joseon Supergroup and Pyeongan Supergroup in the northeastern part of the Ogcheon Belt, South Korea were measured, then the paleostress (i.e., the maximum shortening axis) was reconstructed using the new calcite strain gauge (NCSG) technique. The average twin thickness and average twin intensity increase as the total twin strain increases. We utilize the appearance of twins, the average twin thickness and average twin intensity, and the total twin strain to estimate that the observed calcite twins were produced at temperatures of < $200^{\circ}C$ in the Joseon Supergroup and $170^{\circ}C$ in the Pyeongan Supergroup. In the Joseon Supergroup, the dominant direction of the maximum shortening axis WNW-ESE to NW-SE; NE-SW shortening is also observed. The maximum shortening axes in the Pyeongan Supergroup are oriented NW-SE and NE-SW. The NE-SW direction of maximum shortening is associated with the occurrence of the Songrim orogeny of the Paleozoic to Early Jurassic, and the NW-SE direction of maximum shortening correlates to the Daebo orogeny of the Early Jurassic to Late Jurassic. It is thus concluded that the paleostress across the study area changed from NE-SW to NW-SE during the Mesozoic.

Effect of Outrigger Wall Reinforced with Post Tension on Reducing Differential Column Shortening (포스트 텐션으로 보강된 아웃리거 벽체의 부등기둥축소량 저감 효과)

  • Lim, You-Jin;Kim, Han-Soo
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.33 no.4
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    • pp.237-244
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    • 2020
  • This study investigates the effect of the outrigger wall reinforced with post-tension on reducing differential column shortening. Since the outrigger wall is a concrete structure, the effect of its long-term behavior should be considered. The long-term behavior of the outrigger wall increases differential column shortening and decreases the shear force acting on the outrigger. When the stiffness of the outrigger becomes small, the effect of its long-term behavior increases. Furthermore, a method of reinforcing with post-tension to reduce differential column shortening is proposed. Following the analysis, it was confirmed that the post-tension method shows a significant reduction in the differential column shortening. This study shows that the effect of the outrigger wall reinforced with post-tension on reducing differential column shortening increases with the prestressing force of tendon.

A Study on the Prediction of Shortening for Steel-Reinforced Concrete(SRC) Column in the High-Rise Buildings (초고층 건물에서 철골철근콘크리트(SRC) 기둥의 축소량 예측에 관한 연구)

  • Jeong Eun-Ho;Kim Jeom-Han
    • Journal of the Korea Concrete Institute
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    • v.16 no.1 s.79
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    • pp.36-42
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    • 2004
  • Although steel-reinforced concrete(SRC) is widely used in a high-rise building, a methods used to predict the column shortening of SRC structural members has many problems in applying a theoretical equation which considers only the material characteristics of reinforced concrete. In this study, the degree of accuracy of the existing method calculating the column shortening of a high-rise building is examined. For this, first, the actual measurement data are chosen about the column shortening of a high-rise building established with SRC structural members. Then the column shortening of a SRC structural member is calculated through computer program. Finally, the comparison between the measurement data and the analytical ones is executed. According to this study, it can be concluded that there is little difference between the former and the latter. Therefore, the existing method can be used to evaluate the column shortening of a high-rise building using a SRC structural members.