• Title/Summary/Keyword: superior

Search Result 13,759, Processing Time 0.056 seconds

A Statistical Analysis of Superior Orbital Fissure Width in Korean Adults using Computed Tomography Scans

  • Park, Yongsik;Kim, Youngjoon
    • Archives of Craniofacial Surgery
    • /
    • v.18 no.2
    • /
    • pp.89-91
    • /
    • 2017
  • Background: The superior orbital fissure is a small area that connects the middle cranial fossa and the orbit. Many studies have measured the size of the superior orbital fissure. However, there is no standard value for the size of the superior orbital fissure. Therefore, we conducted this study to provide the average size of the superior orbital fissure in Korean adults. Methods: We measured the widths of the superior orbital fissures of 142 patients using computed tomography scans. Because the width of the superior orbital fissure varies at different locations, we measured the superior orbital fissure width at the level of the optic canal. Results: In the males, the width of the superior orbital fissure on both sides was $3.79{\pm}0.93mm$, and these values were $3.79{\pm}0.96mm$ for the left side and $3.783{\pm}0.92mm$ for the right side. In the females, the widths of the superior orbital fissures were $3.62{\pm}1.35mm$ on the left side, $3.69{\pm}1.18mm$ on the right side, and $3.65{\pm}1.26mm$ across both sides. Conclusion: There were no significant differences between the males and females or between the left and right sides. The present study suggests that we may accept the hypothesis that a congenitally narrow superior orbital fissure may be a risk factor for the superior orbital fissure syndrome. Surgeons should take precaution with patients who have narrow superior orbital fissures during the perioperative period.

Benign superior vena cava syndrome -A case report- (양성 상공정맥 증후군 -1예 보고-)

  • 한병선
    • Journal of Chest Surgery
    • /
    • v.19 no.3
    • /
    • pp.449-452
    • /
    • 1986
  • A patient with benign superior vena cava syndrome caused by the thrombus and fibrotic membrane in superior vena cava is described. Surgical treatment of superior vena cava syndrome remains controversial still. After endvenectomy and thrombectomy of superior vena cava, angioplasty with use of Gore-Tex patch and bypass graft using 10mm diameter Dacron vessel graft from left innominate vein to right atrial appendage were performed. The early postoperative course was uneventful with achievement of good decompression. But 12 months later, the symptoms of superior vena cava syndrome were reoccurred.

  • PDF

Local Superior Commodities, Regional Specializations and Regional Economic Contributions

  • Gunawan, Gunawan;Cahyono, Arie Eko;Santoso, Agus
    • Journal of Distribution Science
    • /
    • v.16 no.9
    • /
    • pp.35-41
    • /
    • 2018
  • Purpose - The purpose of was paper is to do a conceptual analysis of the determination of local superior commodities using the location quotient technique and an analysis of the contribution of superior products to the regional economy. The results of determining superior commodities are used to determine regional product specialization and its contribution to the regional economy. Local superior commodities are dynamic and selected based on the potential to increase regional income. Research design, data, and methodology - This study used location quotient techniques and regional economic analysis with annual data rocks, production data in the agriculture, plantation, fishery and forestry sectors. Local superior commodities are calculated to contribute to regional economists. Result - The findings obtained showed the location quotient technique can determine local superior commodities and local superior commodities contributed positively to the regional economy. The test results were carried out in Jember Regency, East Java Province, Indonesia. Conclusion - The ass well main commodities of Jember Regency are tobacco. Tobacco commodities contribute positively to the regional economy, they were not significantly due to affected by the low of commodity prices in harvest. The low prices indicate the strength of the weak bargaining position of farmers towards the market.

Differences in Reactions to Sales Promotions: Superior or Inferior to Your Product?

  • Kim, Chang Soo;Jo, Myung-Soo
    • Asia Marketing Journal
    • /
    • v.15 no.2
    • /
    • pp.99-116
    • /
    • 2013
  • This study examines whether product promotions are influenced by the market standing of promoted products, using social comparison theory (upward versus downward comparisons). It is hypothesized that people in possession of a product that is inferior to the one on promotion express less discomfort about the promotion and use the information more than do people in possession of a superior product. People in possession of an inferior product may also exhibit more positive attitudes toward the product on promotion, but may show poorer attitudes toward their own possessed product than do people with a superior product. This is because people in an inferior socioeconomic position show a strong motivation to improve themselves through upward social comparison, whereas people in a superior socioeconomic position maintain a strong sense of superiority in downward social comparison, which suggests strong endowment effects. The findings mainly support the hypotheses, and suggest that sales promotions are more effective for people who currently own an inferior product, but not for people with a superior product, who have a strong motivation to maintain their sense of superiority. The findings also imply that, in order to attract consumers in the superior market, managers for inferior products need to turn to methods other than sales promotions, which may include introducing a new brand or sub-brand, or emphasizing luxury and modern features. In contrast, managers for superior products may emphasize product functions and attributes of superior products in their promotions, as people with inferior products may consider such information as benefits of the superior products.

  • PDF

Persistent Left Sperior Vena Cava Draining into the Left Atrium with Absent Right Superior Vena Cava in Tetralogy of Fallot (우측상대정맥 없이 좌측 상대정맥이 좌심방으로 유입되는 활로씨 사징증의 수술치험 1례)

  • Kim, Hyuk;Kim, Byoung-Il;Kim, Nam-Su;Kim, Young-Hak;Chung, Won-Sang;Kang, Jung-Ho;Jee, Heng-Ok;Lee, Chul-Bum;Jeon, Seok-Chol
    • Journal of Chest Surgery
    • /
    • v.32 no.12
    • /
    • pp.1115-1117
    • /
    • 1999
  • A persistent left superior vena cava draining into the coronary sinus is the most benign and widely encountered abnormality and can easily be explained embryologically as the persistence of the usual pattern of vnous circulation in the embryo,. However a persistent left superior vena cava draining into the left atrium with absent right superior vena cava is an extremely rare anomaly. We report this situation in an infant with tetralogy of Fallot. The most common approach has traditionally been intraatrial baffle repair to create a tunnel to the right atrium or rerouting of the left superior vena cava flow by directly anastomosing the left superior vena cava to the right atrium In the present study the left superior vena cava was transposed to the left pulmonary artery after the correction of tetralogy of Fallot. The most common approach has traditionally been intraatrial baffle repair to create a tunnel to the right atrium or rerouting of the left superior vena cava flow by directly anastomosing the left superior vena cava to the right atrium. In the present study the left superior vena cava was transposed to the left pulmonary artery after the correction of tetralogy of Fallot.

  • PDF

Transient Neurologic Deterioration after Total Removal of Parasagittal Meningioma Including Completely Occluding Superior Sagittal Sinus

  • Oh, In-Ho;Park, Bong-Jin;Choi, Seok-Keun;Lim, Young-Jin
    • Journal of Korean Neurosurgical Society
    • /
    • v.46 no.1
    • /
    • pp.71-73
    • /
    • 2009
  • In surgical planning of the parasagittal meningioma, invasion and occlusion of the superior sagittal sinus are important factors. When tumor is located within anterior 1/3, or when angiographic finding shows total occlusion of superior sagittal sinus, it is regarded that the ligation of superior sagittal sinus is safe. We report a case of parasagittal meningioma in 59-year-old male patient with complete occlusion of superior sagittal sinus which was confirmed by preoperative angiography, who developed temporary neurologic deterioration after superior sagittal sinus ligation and resection.

Sintering of Mechanically Alloyed YSZ Nanocrystalline Powders

  • De la Torre, M. A. Lopez;Dura, O. J.;Hernandez, M.;Garcia-Cordobes, M.;Herranz, G.;Sanchez-Bautista, C.;Rodriguez, G. P.
    • Proceedings of the Korean Powder Metallurgy Institute Conference
    • /
    • 2006.09a
    • /
    • pp.670-671
    • /
    • 2006
  • We report on the mechanical and structural properties of nanocrystalline 8% and 10% mol yttria stabilized zirconia (YSZ) obtained using mechanical alloying (MA). The as-milled powders show a body-centered cubic structure with grain sizes in the nanometer scale. After uniaxial pressing and sintering the compacts exhibit good mechanical properties. We discuss the correlation of these enhanced properties with the microstructural changes induced by heat treatment.

  • PDF

Service Resource, Capability and Performance: an Exploratory Study on Hotel Industry (호텔 서비스 자원에 따른 운영역량과 성과의 차이에 관한 연구)

  • Cho, Jungeun
    • Journal of Korean Society for Quality Management
    • /
    • v.41 no.4
    • /
    • pp.513-525
    • /
    • 2013
  • Purpose: The purpose of this paper are to propose a strategic map for hotel industry through analyzing the relationship between service resource, operational capabilities, and performance. Methods: A phone survey was conducted among Korean hotels, and 102 data sets were collected. Measurement items are assessed using both cognitive and objective scales. Results: As results, 'superior group', which is superior in both physical resources and human resources, is excellent in all capabilities and also in room occupancy rate. On the other hands, 'inferior group', which is inferior in both physical resources and human resources, shows lower achievements is in most areas except speed. In addition, physical superior group is better than human superior group in most capabilities except speed, but human superior group shows better results than physical superior group in both room occupancy rate and customer satisfaction. Conclusions: Through the empirical analysis, the conclusions attained are as follows; First, human resources affect customer satisfaction more directly that physical resources. Second, the balancing between physical resources and human resources has an importance to improve operational capabilities.

Distribution of Calretinin in the Superficial Layers of the Mouse Superior Colliculus: Effect of Monocular Enuclection

  • Yang, Hye-Won;Jeon-Jeon, Chang-Jin
    • Animal cells and systems
    • /
    • v.2 no.3
    • /
    • pp.389-393
    • /
    • 1998
  • We localized a calcium-binding protein, calretinin, in the superior colliculus of the mouse and studied the distribution and effect of eye enucleation on the distribution of this protein. Calretinin was localized with immunocyto-chemistry. A dense plexus of anti-calretinin-labeled fibers was found within the superficial layers. The highest density was found in the deep superficial gray layer. Monocular enucleation produced an almost complete reduction of calretinin-immunoreactive fibers in the superficial layers of the superior colliculus contralateral to the enucleation. Furthermore, many calretinin-labeled cells appeared in the contralateral superior colliculus. These newly appeared neurons had small oval or round cell bodies. The results demonstrate that calretinin identify unique neuronal sublaminar organizations in the superior colliculus of the mouse. They also suggest that the retinal projection may control in part the content of calretinin in some neurons in the superficial layers of the mouse superior colliculus.

  • PDF