Yongchan Kim

We hypothesized that kyphotic alignment change by posterior structural injury after cervical laminoplasty would be more marked in patients with high T1 slope, and demonstrated that patients with cervical myelopathy with high T1 slope had more kyphotic alignment changes after cervical laminoplasty at 2-year follow-up.

BACKGROUND: Although non-teaching community hospitals form the majority of healthcare providers in South Korea, there is limited data on antibiotic usage in them. To evaluate the pattern of antibiotic usage and its appropriateness in hospitals with < 400 beds in South Korea. METHODS: A multicentre retrospective study was conducted in 10 hospitals (six long-term care hospitals, three acute care hospitals, and one orthopaedic hospital), with < 400 beds in South Korea. We analysed patterns of antib

Purpose: The purpose of our study was to investigate whether a simple scoring system based on the red blood cell distribution width (RDW), delta neutrophil index (DNI), and platelet count was associated with the prognosis of patients with sepsis, and whether this scoring system was more useful than each individual parameter. Materials and Methods: We conducted a retrospective cohort study involving adult patients who received intensive therapy due to severe sepsis and septic shock from January 2

In this paper we investigate several interesting properties of the fractional calculus operators, the Carlson-Shaffer linear operator L(a,c) and a certain integral operator , associated with various subclasses of analytic and univalent functions. We also investigate the relationships of some of these classes with the Hardy space H ∞ (of bounded analytic functions in the open unit disk μ and with some families of multiplier transformations.

본 연구의 목적은 SNS에서 이루어지는 공유 현상을 “사회적 지원”(social support) 개념의 범주들로 개념화시켜 그 현황을 파악하고, 공유 행위에 영향을 미치는 요인들을 경험적으로 살펴보는 것이다. 구체적인 연구문제는 (1)SNS 상에서의 공유 활동에 사람들이 얼마나 적극적으로 참여하고 있는가, (2) 교육 정도와 소득이 SNS 상에서의 공유 활동에 어떤 영향을 끼치는가, (3)개인주의적 성향과 집합주의적 성향이 SNS 상에서의 공유 활동에 어떤 영향을 끼치는가, (4)집합적 효능감의 두 차원 (비공식적 사회 통제와 사회 결집)이 SNS 상에서의 공유 활동에 어떤 영향을 끼치는가이다. 이를 위해 서울 지역에 거주하는 1,500명의 응답자들을 대상으로 면대면 설문조사를 실시하였다. 본 연구의 주요 결과를 요약하면 우선 사람들은 SNS 상에서 다양한 자원(특히 지식과 정보)을 공유하는 것으로 나타났다. 사람들은 지식과 정보에 대해서는 받는 것에, 나머지 자원들(정서, 평가,

Abstract A sharp norm estimate will be given to the pre-Schwarzian derivatives of close-to-convex functions of specified type. In order to show the sharpness, we introduce a kind of maximal operator which may be of independent interest. We also discuss a relation between the subclasses of close-to-convex functions and the Hardy spaces.

Qualitative analysis of fundus photographs enables straightforward pattern recognition of advanced pathologic myopia. However, it has limitations in defining the classification of the degree or extent of early disease, such that it may be biased by subjective interpretation. In this study, we used the fovea, optic disc, and deepest point of the eye (DPE) as the three major markers (i.e., key indicators) of the posterior globe to quantify the relative tomographic elevation of the posterior sclera

We define and investigate a family of complex‐valued harmonic convex univalent functions related to uniformly convex analytic functions. We obtain coefficient bounds, extreme points, distortion theorems, convolution and convex combinations for this family.