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有向图上的一些猜想和开放问题

数学进展 2024年第1期53卷 1-12页

作者：艾江东 Gregory GUTIN 史永堂 Ander yeo 南开大学数学科学学院核心数学与组合数学教育部重点实验室天津300371 伦敦大学皇家霍洛威学院计算机科学系英国萨里郡TW200EX 南开大学组合数学中心核心数学与组合数学教育部重点实验室天津300371 南丹麦大学数学与计算机科学系丹麦欧登塞M区DK-5230 约翰内斯堡大学数学与应用数学系南非约翰内斯堡2006

讨论了有向图上的几个猜想和开放问题.一些尚未解决的问题是新的.

关键词：有向图出度圈路分划最大有向割集拟核 Seymour二次邻域猜想无圈2-染色

Fruit Characteristics and Mineral Nutrient Concentrations Depending on Different Sizes of “Fuyu” Persimmon Fruits

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Gastric heterotopia of colon found cancer workup in liver abscess:A case report

Agricultural Sciences（农业科学） 2019年第8期

作者： Seong-Tae Choi Gwang-Hwan Ahn Eun-Gyeong Kim Ji-Young Son yeo-ok park Wan-Kyu Joung weet Persimmon Research Institute Gyeongsangnam-do Agricultural Research and Extension Services Gimhae

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World Journal of Clinical Cases 2022年第15期10卷 5012-5017页

作者： Jun Gi park Jeong Ill Suh yeo Un Kim Department of Internal Medicine College of MedicineDongguk UniversityGyeongju 38067South Korea

BACKGROUND Recently reported cases of pyogenic liver abscess associated with colonic cancer in the absence of underlying disease,have included a small number of cases of gastric heterotopia(GHT).GHT is a congenital anomaly composed of ectopic gastric mucosa and can occur anywhere in the gastrointestinal tract but is more frequently encountered in the cervical ***,it is rarely observed in ***,most reported cases of GHT of the colon involved the rectum,and GHT involving the colon proximal to the rectum is *** SUMMARY An 83-year-old male patient presented with fever and a diagnosis of pyogenic liver *** was performed for colon cancer workup and revealed a 1.0 cm sized polyp at the transverse *** polyp was removed by endoscopic mucosal resection by monopolar electrocauterization using a *** examination revealed *** administering intravenous antibiotics,the patient recovered *** GHT in the colon could affect the development of pyogenic liver abscess by enabling hematogenous propagation of Klebsiella pneumoniae through mucosal ***,more study is needed due to the lack of cases.

关键词： Gastric heterotopia Colon Liver abscess Case report

A novel therapeutic target for peripheral nerve injury-related diseases: aminoacyl-tRNA synthetases

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Neural Regeneration Research 2015年第10期10卷 1656-1662页

作者： Byung Sun park Seung Geun yeo Junyang Jung Na Young Jeong Department of Anatomy and Neurobiology School of Medicine Kyung Hee University Department of Otolaryngolgy Head and Neck Surgery School of Medicine Kyung Hee University Department of Anatomy and Cell Biology College of Medicine Dong-A University

Aminoacyl-t RNA synthetases（Amino ARSs） are essential enzymes that perform the first step of protein synthesis. Beyond their original roles, Amino ARSs possess non-canonical functions, such as cell cycle regulation and signal transduction. Therefore, Amino ARSs represent a powerful pharmaceutical target if their non-canonical functions can be controlled. Using Amino ARSs-specific primers, we screened m RNA expression in the spinal cord dorsal horn of rats with peripheral nerve injury created by sciatic nerve axotomy. Of 20 Amino ARSs, we found that phenylalanyl-t RNA synthetase beta chain（FARSB）, isoleucyl-t RNA synthetase（IARS） and methionyl-t RNA synthetase（MARS） m RNA expression was increased in spinal dorsal horn neurons on the injured side, but not in glial cells. These findings suggest the possibility that FARSB, IARS and MARS, as a neurotransmitter, may transfer abnormal sensory signals after peripheral nerve damage and become a new target for drug treatment.

关键词： nerve regeneration aminoacyl-t RNA synthetases dorsal horn peripheral nerve injury in situ hybridization neural regeneration

Performance evaluations on inner vs. outer decomposition first parallel join algorithms for two nested loop joins

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Journal of Central South University 2014年第10期21卷 3873-3882页

作者： Seo-Young NOH Heejun YOON Il-yeon yeo Yoon-su JEONG Hyungwoo park National Institute of Supercomputing and Networking Korea Institute of Science and Technology Information Department of Information Communication Engineering Mokwon University

Two popular traditional join algorithms and their parallel versions are introduced. When designing join algorithms in serial computing environment, decomposing inner relation is considered as the right direction to save disk I/Os. However, two different decomposition algorithms are compared, such as inner vs. outer decomposition first algorithms for tuple-based and block-based nested loop joins, showing that the proposed approach is 20% better than general approach. Also lemmas are proved, when we have to use the outer decomposition first parallel join algorithms.

关键词： parallel join performance inner decomposition outer decomposition

Study on the Relationship between Mental Health Literacy and Psychological Symptoms of University Students: Mediating Effect of Grit

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International Journal of Mental Health Promotion 2023年第7期25卷 813-821页

作者： yeo-Won Jeong Jung-Ha Kim Hyun-Kyeong park Department of Nursing College of Nursing Dongguk UniversityGyeongju-si38066Korea Aeromedical Center of Korean Air Seoul07505Korea Department of Nursing Graduate SchoolDongguk UniversityGyeongju-si38066Korea

Background:The occurrence of mental health symptoms is higher in individuals aged between 18 and 24 years than in other age *** health literacy is derived from health literacy,and focuses on the knowledge,attitudes,and competencies that individuals need to acquire to manage their own health *** mental health literacy is associated with poorer mental *** is also a known protective factor against mental *** a heightened focus on mental health literacy and grit as important factors for decreasing mental health symptoms,knowledge of the effect of mental health literacy and grit on mental health symptoms is very *** study aimed to evaluate the relationship between mental health literacy and psychological symptoms and the mediating effect of grit on these ***:This cross-sectional descriptive study used survey data from 178 university students in *** were collected between March and May *** SPSS PROCESS macro(Model 4)was used to analyze the ***:Mental health literacy was not directly associated with psychological ***,an indirect pathway was observed between mental health literacy,depression,and anxiety,through ***:Mental health literacy affects psychological symptoms through ***,to improve the mental health of university students,it is necessary to develop programs that increase mental health literacy and grit.

关键词： Depression anxiety psychological stress health literacy mental health students

Induced atrial fibrillation during defibrillation test on implantation of subcutaneous implantable cardioverter defibrillator

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Journal of Geriatric Cardiology 2020年第8期17卷 525-527页

作者： Ki-Hun Kim Sang-Hoon Seol Jino park yeo-Jeong Song Seunghwan Kim Dong-Kie Kim Division of Cardiology Department of Internal MedicineHaeundae Paik HospitalInje University College of MedicineBusanKorea

The subcutaneous implantable cardioverter defibrillator(S-ICD)has become an alternative to the transvenous ICD in indicated ***,inappropriate shock or failed ventricular tachycardia/fibrillation conversion is the most... 详细信息

关键词： Atrial fibrillation Defibrillation test Subcutaneous implantable cardioverter defibrillator

Comparison of renal safety of tenofovir and entecavir in patients with chronic hepatitis B: Systematic review with meta-analysis

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World Journal of Gastroenterology 2019年第23期25卷 2961-2972页

作者： Hyo-Young Lee Hyunwoo Oh Chan-Hyuk park Yee-Hui yeo Mindie H Nguyen Dae-Won Jun Department of Internal Medicine Hanyang University College of MedicineSeoul 04763South Korea Department of Internal Medicine Hanyang University Guri HospitalHanyang University College of MedicineGuri 11923South Korea Division of Gastroenterology and Hepatology Stanford University Medical CenterStanford UniversityStanford 94305CAUnited States

BACKGROUND Recently, the American Association for the Study of Liver Disease suggested no preference between tenofovir(TDF) and entecavir(ETV) regarding potential long-term risks of renal complications. Over the years, renal safety has become a critical concern in nucleos(t)ide analog-treated patients due to the long-term use of these drugs. However, existing studies do not show significant differences in renal dysfunction between these two drugs. Further, there is a paucity of studies comparing the long-term renal effects of TDF and *** To investigate the effects of TDF and ETV on renal function, we performed systematic review and *** Two investigators independently searched the Cochrane Library, MEDLINE, and Embase databases for randomized controlled trials and nonrandomized studies(NRSs) using the keywords 'CHB', 'Tenofovir', and 'Entecavir', and additional references were obtained from the bibliographies of relevant articles published through December 2017. The quality of each study was assessed using the Newcastle-Ottawa scale and the Grading of Recommendations Assessment,Development and Evaluation criteria. The primary outcome was the change in serum creatinine level in the TDF and ETV groups at baseline, 6 mo, 12 mo and24 *** NRSs comprising 2263 participants met the inclusion criteria. Changes in creatinine levels were higher in the TDF group than in the ETV group at 6 mo[mean difference(MD) = 0.03 mg/dL;95%CI: 0.02-0.04;I2 = 0%], 12 mo(MD =0.05 mg/dL;95%CI: 0.02-0.08;I2 = 78%), and 24 mo(MD = 0.07 mg/dL;95%CI:0.01-0.13;I2 = 93%). The change in estimated glomerular filtration rate(eGFR) was significantly higher in the TDF group than in the ETV group at 6 mo[standardized mean difference(SMD),-0.22;95%Cl:-0.36--0.08;I2 = 0%], 12 mo(SMD =-0.24;95%Cl:-0.43--0.05;I2 = 50%), and 24 mo(-0.35;95%Cl:-0.61--0.09;I2= 67%).CONCLUSION TDF statistically significantly increased serum creatinine levels and decreased the eGFR in 6-24 mo compa

关键词： Hepatitis B Chronic Tenofovir Entecavir Safety Review Systematic Meta-analysis

The modulation of radiation-induced cell death by genistein in K562 cells:Activation of thymidine kinase 1

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Cell Research 2004年第4期14卷 295-302页

作者： Min Ho JEONG,Young Hee JIN,Eun Young KANG,Wol Soon JO,Hwan Tae park,Jae Dong LEE,yeo Jin YOO,Soo Jin JEONG Research Supporting Center for Medical Science (BK21 program) Dong-A University College of Medicine Busan Korea Research Supporting Center for Medical Science (BK21 program) Dong-A University College of Medicine Busan Korea Research Supporting Center for Medical Science (BK21 program) Dong-A University College of Medicine Busan Korea Research Supporting Center for Medical Science (BK21 program) Dong-A University College of Medicine Busan Korea Research Supporting Center for Medical Science (BK21 program) Dong-A University College of Medicine Busan Korea Department of Microbiology Pusan National University Busan Korea Research Supporting Center for Medical Science (BK21 program) Dong-A University College of Medicine Busan Korea Research Supporting Center for Medical Science (BK21 program) Dong-A University College of Medicine Busan Korea Virus Tumor Biology Section Laboratory of Cellular Oncology Center for Cancer Research National Cancer Institutes National Institute of Health Bethesda MD 20892 USA

Ionizing radiation is one of the most effective tools in cancer therapy. In a previous study, we reported that protein tyrosine kinase (PTK) inhibitors modulate the radiation responses in the human chronic myelogenous leukemia (CML) cell line K562. The receptor tyrosine kinase inhibitor, genistein, delayed radiation-induced cell death, while non-recepter tyrosine kinase inhibitor, herbimycin A (HMA) enhances radiation-induced apoptosis. In this study, we focused on the modulation of radiation-induced cell death by genistein and performed PCR-select suppression subtractive hybridization (SSH) to understand its molecular mechanism. We identified human thymidine kinase 1 (TK1), which is cell cycle regulatory gene and confirmed expression of TK1 mRNA by Northern blot analysis. Expression of TKl mRNA and TK1 enzymatic activity were parallel in their increase and decrease. TK1 is involved in G1-S phase transition of cell cycle progression. In cell cycle analysis, we showed that radiation induced G2 arrest in K

关键词： K562 radiation cell death genistein thymidine kinase 1 cell cycle.