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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.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a generalized Tanaka-Webster Reeb parallel Ricci tensor tensor for Hopf hypersurfaces was introduced. And the authors gave a complete classification of Hopf hypergraphs in the Levi-Civita connection.
Abstract: There are several kinds of classification problems for real hypersurfaces in complex two-plane Grassmannians . Among them, Suh classified Hopf hypersurfaces in with Reeb parallel Ricci tensor in Levi–Civita connection. In this paper, we introduce the notion of generalized Tanaka–Webster Reeb parallel Ricci tensor for Hopf hypersurfaces in . Next, we give a complete classification of Hopf hypersurfaces in with Reeb parallel Ricci tensor.

1 citations

Book ChapterDOI
01 Jan 2017
TL;DR: In this article, Jeong et al. considered more general notions as Reeb recurrent or ''mathscr {Q}^{\bot }\)-recurrent structure Jacobi operator.
Abstract: In (Jeong et al., Acta Math Hungar 122(1–2), 173–186, 2009) [7], Jeong, Perez, and Suh verified that there does not exist any connected Hopf hypersurface in complex two-plane Grassmannians with parallel structure Jacobi operator. In this paper, we consider more general notions as Reeb recurrent or \(\mathscr {Q}^{\bot }\)-recurrent structure Jacobi operator. By using these general notions, we give some new characterizations of Hopf hypersurfaces in complex two-plane Grassmannians.

1 citations

Journal ArticleDOI
TL;DR: A mass lesion on mammography, a palpable mass, and 14G core needle biopsy were significant predictors of invasion in patients with ductal carcinoma in situ.
Abstract: that predict the presence of invasive cancer after core biopsy for ductal carcinoma in situ (DCIS). Methods: The patients diagnosed with ductal carcinoma in situ on core biopsy (stereotactic or ultrasound) from February 2003 to May 2007 were identified by retrospectively reviewing the collected data. We analyzed the demographic data, the characteristics on the imaging studies and the histologic features on DCIS. We assessed the factors that included age, the physical examination, the radiologic findings, the biopsy method, and the histologic findings related to the presence of invasive cancer after core biopsy. Results: Fifty-one patients were diagnosed with DCIS after core biopsy. Of the 51 patients, 19 patients had invasive carcinoma diagnosed on final excision. The factors that correlated with invasion were the biopsy method, a palpable mass and a mammographic mass, regardless of calcification. A high nuclear grade, the comedo type, age, and the tumor size were not related to presence of invasive cancer. Conclusion: A mass lesion on mammography, a palpable mass, and 14G core needle biopsy were significant predictors of invasion in patients with ductal carcinoma in situ. Surgeons always recognize the possibility of invasive cancer in patients with ductal carcinoma in situ on the core needle biopsy.

1 citations

Journal ArticleDOI
TL;DR: In this article, the authors considered a real hypersurface M in a complex two-plane Grassmannian and proved that M is an open part of a tube around a totally geodesic.
Abstract: Using GTW connection, we considered a real hypersurface M in a complex two-plane Grassmannian \({G_{2}({\mathbb{C}}^{m+2})}\) when the GTW Reeb Lie derivative of the structure Jacobi operator coincides with the Reeb Lie derivative. Next using the method of simultaneous diagonalization, we prove a complete classification for a real hypersurface in \({G_{2}({\mathbb{C}}^{m+2})}\) satisfying such a condition. In this case, we have proved that M is an open part of a tube around a totally geodesic \({G_{2}({\mathbb{C}}^{m+1})}\) in \({G_{2}({\mathbb{C}}^{m+2})}\).

1 citations


Cited by
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Journal ArticleDOI
01 Nov 2009-Thyroid
TL;DR: 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.
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.

1,802 citations

Journal ArticleDOI
TL;DR: The 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.
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.

695 citations

Journal ArticleDOI
TL;DR: LADG for patients with clinical stage I gastric cancer is safe and has a benefit of lower occurrence of wound complication compared with conventional ODG.
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

467 citations

01 Jan 2016
TL;DR: The the foundations of differential geometry is universally compatible with any devices to read and is available in the book collection an online access to it is set as public so you can get it instantly.
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.

463 citations