Young Jin Suh

Bio: Young Jin Suh is an academic researcher from Kyungpook National University. The author has contributed to research in topics: Ricci curvature & Jacobi operator. The author has an hindex of 34, co-authored 364 publications receiving 4180 citations. Previous affiliations of Young Jin Suh include UPRRP College of Natural Sciences & St. Vincent's Health System.

Laparoscopic splenectomy: 3 ports are enough.

Abstract: With advanced technologies and accumulating experience, a new consensus concerning the least invasive laparoscopic splenectomy should be addressed. We retrospectively analyzed 41 consecutive patients who underwent laparoscopic splenectomy from 1994 to 2007. We divided our patients into 3 groups acco

REAL HYPERSURFACES IN COMPLEX TWO-PLANE GRASSMANNIANS WITH GENERALIZED TANAKA–WEBSTER 𝔇⊥-PARALLEL SHAPE OPERATOR

Abstract: In a paper due to [I. Jeong, H. Lee and Y. J. Suh, Real hypersurfaces in complex two-plane Grassmannians with generalized Tanaka–Webster parallel shape operator, Kodai Math. J.34 (2011) 352–366] we have shown that there does not exist a hypersurface in G2(ℂm+2) with parallel shape operator in the generalized Tanaka–Webster connection (see [N. Tanaka, On non-degenerate real hypersurfaces, graded Lie algebras and Cartan connections, Japan J. Math.20 (1976) 131–190; S. Tanno, Variational problems on contact Riemannian manifolds, Trans. Amer. Math. Soc.314(1) (1989) 349–379]). In this paper, we introduce a new notion of generalized Tanaka–Webster 𝔇⊥-parallel for a hypersurface M in G2(ℂm+2), and give a characterization for a tube around a totally geodesic ℍ Pn in G2(ℂm+2) where m = 2n.

Real hypersurfaces in complex two-plane Grassmannians with certain commuting condition

Abstract: In this paper, first we introduce a new notion of commuting condition that φφ1A = Aφ1φ between the shape operator A and the structure tensors φ and φ1 for real hypersurfaces in G2(ℂm+2). Suprisingly, real hypersurfaces of type (A), that is, a tube over a totally geodesic G2(ℂm+1) in complex two plane Grassmannians G2(ℂm+2) satisfy this commuting condition. Next we consider a complete classification of Hopf hypersurfaces in G2(ℂm+2) satisfying the commuting condition. Finally we get a characterization of Type (A) in terms of such commuting condition φφ1A = Aφ1φ.

Branching Pattern of the Facial Nerve in the Parotid Gland

Abstract: Iatrogenic injury of the facial nerve branch is the main complication during a parotidectomy, leading to functional damage in the patient. An exact and thorough understanding of the anatomy of the branching pattern of the facial nerve in the parotid gland is prerequisite for surgeons performing a parotidectomy. The aim of this study was to elucidate the branching pattern of the facial nerve inside the parotid gland. The relationships between the branches of the facial nerve were investigated in 23 adult faces during parotidectomies for various etiologies. The branches of the facial nerve were divided into six types according to their branching patterns and their communication. Straight branching with two subtrunks was seen in 12 (52%) out of the 23 cases (Type I), two buccal branches from the lower and upper subtrunks was seen in 4 (17%) cases (Type II), and anastomosis between the buccal and zygomatic branches in 4 (17%) cases (Type III). There were multiple anastomoses among the temporal, zygomatic and buccal branches in 2 (9%) cases (Type IV). Only one (4%) case had buccal branch stemming from the marginal mandibular branch (Type VI). In most cases, the buccal branch was the thinnest. We think that many of the patients having a parotid tumor would possibly show a Type I branching pattern during a parotidectomy. Although the marginal mandibular branch was known to have a long course, almost no anastomosis with other branches, and the most devastating functional damage after iatrogenic injury. Surgeons should be especially careful during the dissection along the course of buccal branch, which may be the thinnest, and prone to damage, transiently or permanently, following the procedure.

Prognostic Role of Adjuvant Chemotherapy in Node-Negative (N0), Triple-Negative (TN), Medullary Breast Cancer (MBC) in the Korean Population

Abstract: Background Despite the favorable prognosis for medullary breast cancer (MBC), the guidelines for the use of adjuvant chemotherapy for MBC have not been clearly established. This study investigated the prognostic role of adjuvant chemotherapy in Korean patients with node-negative (N0), triple-negative (TN) MBC patients.

The Bethesda System for Reporting Thyroid Cytopathology.

Abstract: Objective To address terminology and other issues related to thyroid fine-needle aspiration (FNA), the National Cancer Institute (NCI) hosted The NCI Thyroid FNA State of the Science Conference. The conclusions regarding terminology and morphologic criteria from the NCI meeting led to the Bethesda Thyroid Atlas Project and form the framework for the Bethesda System for Reporting Thyroid Cytopathology. Design Participants of the Atlas Project were selected from among the committee members of the NCI FNA State of the Science Conference and other participants at the live conference. The terminology framework was based on a literature search of English language publications dating back to 1995 using PubMed as the search engine; online forum discussions ( http://thyroidfna.cancer.gov/forums/default.aspx ); and formal interdisciplinary discussions held on October 22 and 23, 2007, in Bethesda, MD. Main outcome For clarity of communication, the Bethesda System for Reporting Thyroid Cytopathology recommends that each report begin with one of the six general diagnostic categories. Each of the categories has an implied cancer risk that links it to an appropriate clinical management guideline. Conclusions The project participants hope that the adoption of this framework will facilitate communication among cytopathologists, endocrinologists, surgeons, and radiologists; facilitate cytologic-histologic correlation for thyroid diseases; facilitate research into the understanding of thyroid diseases; and allow easy and reliable sharing of data from different laboratories for national and international collaborative studies.

Open versus laparoscopic surgery for mid-rectal or low-rectal cancer after neoadjuvant chemoradiotherapy (COREAN trial): survival outcomes of an open-label, non-inferiority, randomised controlled trial.

Abstract: Summary Background Compared with open resection, laparoscopic resection of rectal cancers is associated with improved short-term outcomes, but high-level evidence showing similar long-term outcomes is scarce. We aimed to compare survival outcomes of laparoscopic surgery with open surgery for patients with mid-rectal or low-rectal cancer. Methods The Comparison of Open versus laparoscopic surgery for mid or low REctal cancer After Neoadjuvant chemoradiotherapy (COREAN) trial was an open-label, non-inferiority, randomised controlled trial done between April 4, 2006, and Aug 26, 2009, at three centres in Korea. Patients (aged 18–80 years) with cT3N0–2M0 mid-rectal or low-rectal cancer who had received preoperative chemoradiotherapy were randomly assigned (1:1) to receive either open or laparoscopic surgery. Randomisation was stratified by sex and preoperative chemotherapy regimen. Investigators were masked to the randomisation sequence; patients and clinicians were not masked to the treatment assignments. The primary endpoint was 3 year disease-free survival, with a non-inferiority margin of 15%. Analysis was by intention to treat. This trial is registered with ClinicalTrials.gov, number NCT00470951. Findings We randomly assigned 340 patients to receive either open surgery (n=170) or laparoscopic surgery (n=170). 3 year disease-free survival was 72·5% (95% CI 65·0–78·6) for the open surgery group and 79·2% (72·3–84·6) for the laparoscopic surgery group, with a difference that was lower than the prespecified non-inferiority margin (–6·7%, 95% CI −15·8 to 2·4; p Interpretation Our results show that laparoscopic resection for locally advanced rectal cancer after preoperative chemoradiotherapy provides similar outcomes for disease-free survival as open resection, thus justifying its use. Funding National Cancer Center, South Korea.

Decreased Morbidity of Laparoscopic Distal Gastrectomy Compared With Open Distal Gastrectomy for Stage I Gastric Cancer: Short-term Outcomes From a Multicenter Randomized Controlled Trial (KLASS-01).

Abstract: Objective:To determine the safety of laparoscopy-assisted distal gastrectomy (LADG) compared with open distal gastrectomy (ODG) in patients with clinical stage I gastric cancer in Korea.Background:There is still a lack of large-scale, multicenter randomized trials regarding the safety of LADG.Method

The Foundations Of Differential Geometry

Abstract: Thank you for downloading the foundations of differential geometry. As you may know, people have look numerous times for their chosen books like this the foundations of differential geometry, but end up in malicious downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they are facing with some infectious bugs inside their computer. the foundations of differential geometry is available in our book collection an online access to it is set as public so you can get it instantly. Our book servers saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. Merely said, the the foundations of differential geometry is universally compatible with any devices to read.