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Flower morphology of Allium(Amaryllidaceae)and its systematic significance

Plant Diversity 2024年第1期46卷 3-27页

作者： ju.Eun Jang Shukherdorj Baasanmunkh Nudkhuu Nyamgerel Seung-yoon Oh ju.-Ho Song Ziyoviddin Yusupov Komijlon Tojibaev Hyeok Jae Choi Department of Biology and Chemistry Changwon National UniversityChangwon51140Republic of Korea Department of Forest Biodiversity and Herbarium Korea National ArboretumPocheon11186Republic of Korea Department of Biology Chungbuk National UniversityCheongju28644Republic of Korea International Joint Lab for Molecular Phylogeny and Biogeography Institute of BotanyAcademy of Sciences of UzbekistanTashkent100125Uzbekistan

Allium is a complicated genus that includes approximately 1000 *** its morphology is well studied,the taxonomic importance of many morphological traits,including floral traits,are poorly ***,we examined and measured the floral characteristics of 87 accessions of 74 Allium taxa(belonging to 30 sections and nine subgenera)from Central to Eastern Asian *** then examined the taxonomic relationships between select flower characteristics and a phylogenetic tree based on ITS *** results confirm that floral morphology provides key taxonomic information to assess species delimitation in *** found that perianth color is an important characteristic within the ***,Polyprason,and *** ***,Cepa,and Rhizirideum,significant characteristics include ovary shape,perianth shape,and inner tepal *** species in ***,the key taxonomic character is ovule number(only one ovule in per locule).In the ***,Cepa,Polyprason,and Reticulatobulbosa,which belong to the third evolutionary line of Allium,hood-like appendages occur in the ovary,although these do not occur in *** results also indicated that the flower morphology of several species in some sections are not clearly distinguished,e.g.,***(***)and ***(***).This study provides detailed photographs and descriptions of floral characteristics and information on general distributions,habitats,and phenology of the studied taxa.

关键词： Allium Flower morphology Pistil character Statistical analysis Significant characteristic Species level

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Metabolic relationships between marine red algae and algae‑associated bacteria

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Marine Life Science & Technology 2024年第2期6卷 298-314页

作者： Kyung Hyun Kim Jeong Min Kim ju.Hye Baek Sang Eun Jeong Hocheol Kim Hwan Su yoon Che Ok Jeon Department of Biological Sciences and Biotechnology Hannam UniversityDaejon 34054Republic of Korea Department of Life Science Chung-Ang UniversitySeoul 06974Republic of Korea Department of Biological Sciences Sungkyunkwan UniversitySuwon 16419Republic of Korea

Mutualistic interactions between marine phototrophs and associated bacteria are an important strategy for their success-ful survival in the ocean,but little is known about their metabolic ***,bacterial communities in the algal sphere(AS)and bulk solution(BS)of nine marine red algal cultures were analyzed,and Roseibium and Phycisphaera were identified significantly more abundantly in AS than in *** metabolic features of Roseibium RMAR6-6(isolated and genome-sequenced),Phycisphaera MAG 12(obtained by metagenomic sequencing),and a marine red alga,Porphyridium purpureum CCMP1328(from GenBank),were analyzed ***6-6 has the genetic capability to fix nitrogen and produce B vitamins(B1,B2,B5,B6,B9,and B12),bacterioferritin,dimethylsulfoniopropionate(DMSP),and phenylacetate that may enhance algal growth,whereas MAG 12 may have a limited metabolic capability,not producing vitamins B9 and B12,DMSP,phenylacetate,and siderophores,but with the ability to produce bacitracin,possibly modulating algal *** CCMP1328 lacks the genetic capability to fix nitrogen and produce vitamin B12,DMSP,phenylacetate,and *** was shown that the nitrogen-fixing ability of RMAR6-6 promoted the growth of ***-pureum,and DMSP reduced the oxidative stress of *** metabolic interactions between strain RMAR6-6 and *** CCMP1328 were also investigated by the transcriptomic analyses of their monoculture and *** together,potential metabolic relationships between Roseibium and *** were *** study provides a bet-ter understanding of the metabolic relationships between marine algae and algae-associated bacteria for successful growth.

关键词： Metabolic relationship Marine red algae Symbiotic bacteria Roseibium Phycisphaera Porphyridium

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Real-Time Tunable Gas Sensing Platform Based on SnO_(2) Nanoparticles Activated by Blue Micro-Light-Emitting Diodes

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Nano-Micro Letters 2024年第12期16卷 103-119页

作者： Gi Baek Nam ju.g-El Ryu Tae Hoon Eom Seung ju.Kim ju. Min Suh Seungmin Lee Sungkyun Choi Cheon Woo Moon Seon ju.Park Soo Min Lee Byungsoo Kim Sung hyuk Park Jin Wook Yang Sangjin Min Sohyeon Park Sung Hwan Cho hyuk Jin Kim Sang Eon ju. Tae Hyung Lee Yeong Jae Kim Jae Young Kim Young Joon Hong Jong-In Shim Hyung-Gi Byun Yongjo Park Inkyu Park Sang-Wan Ryu Ho Won Jang Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Research Laboratory of Electronics Department of Mechanical EngineeringMassachusetts Institute of TechnologyCambridgeMA 02139USA Ming Hsieh Department of Electrical and Computer Engineering University of Southern CaliforniaLos AngelesCA 90089USA Department of Display Materials Engineering Soonchunhyang UniversityAsan 31538Republic of Korea Department of Photonics and Nanoelectronics BK21 FOUR ERICA-ACE CenterHanyang University ERICAAnsan 15588Republic of Korea Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea Department of Electronics Information and Communication EngineeringKangwon National UniversitySamcheok 25913Republic of Korea Advance Institute of Convergence Technology Seoul National UniversitySuwon 16229Republic of Korea Department of Mechanical Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Department of Physics Chonnam National UniversityGwangju 500-757Republic of Korea

Micro-light-emitting diodes(μLEDs)have gained significant interest as an activation source for gas sensors owing to their advantages,including room temperature operation and low power ***,despite these benefits,challenges still exist such as a limited range of detectable gases and slow *** this study,we present a blueμLED-integrated light-activated gas sensor array based on SnO_(2)nanoparticles(NPs)that exhibit excellent sensitivity,tunable selectivity,and rapid detection with micro-watt level power *** optimal power forμLED is observed at the highest gas response,supported by finite-difference time-domain ***,we first report the visible light-activated selective detection of reducing gases using noble metal-decorated SnO_(2)*** noble metals induce catalytic interaction with reducing gases,clearly distinguishing NH3,H2,and ***-time gas monitoring based on a fully hardwareimplemented light-activated sensing array was demonstrated,opening up new avenues for advancements in light-activated electronic nose technologies.

关键词： Micro-LED Gas sensor array Low power consumption Metal decoration Real-time detection

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Vomiting-induced pharyngeal perforation during bowel preparation for colonoscopy:A case report

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World Journal of Clinical Cases 2024年第18期12卷 3615-3621页

作者： Geonhee Kim Won hyuk Lee Seokin Kang ju.g Rock Moon yoon Suk Lee ju. hyuk Son Nam-Hoon Kim Jong Wook Kim Department of Internal Medicine Ilsan Paik HospitalInje University College of MedicineGoyang 10380South Korea

BACKGROUND Effective bowel cleansing is essential for a successful ***,such as polyethylene glycol,are commonly used for bowel *** is a frequent complication during bowel preparation,and forceful vomiting can potentially lead to esophageal perforation,as reported in several previous ***,pharyngeal perforation during bowel preparation has not been previously ***,we present a case of pharyngeal perforation induced by forceful vomiting during bowel *** SUMMARY A 38-year-old man with a history of hypertension,dyslipidemia,diabetes mellitus,and end-stage renal disease on hemodialysis was admitted for evaluation of recurrent abdominal *** patient complained of sudden pain in the neck,throat,and anterior chest following forceful vomiting during bowel *** examination revealed crepitus under the skin of the neck and anterior chest on palpation,and upper gastrointestinal endoscopy revealed pharyngeal *** perforation site was located above the upper esophageal sphincter,which distinguished it from Boerhaave’s *** medical management was chosen after consultation with a thoracic surgeon and an otolaryngologist,considering the patient's mild symptoms,stable vital signs,and the small size of the lesion;the perforation resolved without endoscopic or surgical *** patient was discharged from hospital two weeks after the *** Despite its rarity,pharyngeal perforation should be considered a potential complication of bowel preparation for colonoscopy.

关键词： Colonoscopy Pharynx Polyethylene glycols Spontaneous perforation Case report

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Investigating ischemia and reperfusion-induced organ damage in severe cardiac arrest:A comprehensive proteomics perspective

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Journal of Pharmaceutical Analysis 2024年第3期14卷 427-430页

作者： ju.Yeon Lee Muhammad Shoaib Jin-Woong Choi Rishabh C.Choudhary Tai Yin Nara yoon Kei Hayashida Seunguk J.Baek Santiago J.Miyara Lance B.Becker ju.hwan Kim Research Center of Bioconvergence Analysis Korea Basic Science InstituteCheongjuSouth Korea Bio-Analytical Science University of Science and TechnologyCheongjuSouth Korea Laboratory for Critical Care Physiology Feinstein Institutes for Medical ResearchManhassetNY11030USA Donald and Barbara Zucker School of Medicine at Hofstra/Northwell School of Medicine HempsteadNY11549USA Mathematics and Computer Science Adelphi UniversityGarden CityNY11530USA Department of Emergency Medicine North Shore University HospitalManhassetNY11030USA

Cardiac arrest(CA)is a life-threatening condition with complex pathophysiology and limited treatment *** gain deeper insights into the pathological state of vital organs,we employed a proteomics analysis in rodents to assess proteome alterations in the brain,heart,kidney,and liver using a rat model of *** brain displayed severe protein alterations in essential cellular pathways,including three major energy-generating pathways after CA,which worsened after resuscitation,resulting in the most significant overall protein changes among the ***,the liver,experiencing the most substantial protein alterations post-CA,demonstrated significant recovery,presenting the least protein changes post-resuscitation.

关键词： alterations organs damage

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High Na-ion conductivity andmechanical integrity of anion-exchanged polymeric hydrogel electrolytes for flexible sodium ion hybrid energy storage

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SusMat 2024年第1期4卷 140-153页

作者： ju.gWoo Hong Harpalsinh H.Rana Jeong Hee Park ju. Su Kim Sang Joon Lee Gun Jang Tae Hoon Kang Kang Ho Shin Sang Ha Baek Wooseok Yang Kwang Ho Kim ju.hyuk Lee Ho Seok Park School of Chemical Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Clean Energy Research Center Korea Institute of Science and Technology(KIST)SeoulRepublic of Korea KIST-SKKU Carbon-Neutral Research Center Sungkyunkwan University(SKKU)SuwonRepublic of Korea SKKU Institute of Energy Science and Technology(SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea COSMOS LAB/92 Jomaru-ro 385beon-gilBucheon-siRepublic of Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan UniversitySuwonRepublic of Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan UniversitySuwonRepublic of Korea

The polymeric gel electrolytes are attractive owing to their higher ionic conductivities than those of dry polymer electrolytes and lowered water activity for enlarged potential ***,the ionic conductivity and mechanical strength of the Na-ion conducting polymeric gel electrolytes are limited by below 20 mS cm−1 and 2.2 ***,we demonstrate Na-ion conducting and flexible polymeric hydrogel electrolytes of the chemically coupled poly(diallyldimethylammonium chloride)-dextrin-N,N′-methylene-bisacrylamide film immersed in NaClO_(4) solution(ex-DDA-Dex+NaClO_(4))for flexible sodium-ion hybrid capacitors(f-NIHC).In particular,the anion exchange reaction and synergistic interaction of ex-DDA-Dex with the optimum ClO_(4)−enable to greatly improve the ionic conductivity up to 27.63 mS cm−1 at 25◦C and electrochemical stability window up to 2.6 V,whereas the double networking structure leads to achieve both the mechanical strength(7.48 MPa)and softness of hydrogel ***,the f-NIHCs with the ex-DDA-Dex+NaClO_(4) achieved high specific and high-rate capacities of 192.04 F g^(−1)at 500 mA g^(−1)and 116.06 F g^(−1)at 10000 mA g^(−1),respectively,delivering a large energy density of 120.03Wh kg^(−1)at 906Wkg^(−1)and long cyclability of 70%over 500 cycles as well as demonstrating functional operation under mechanical stresses.

关键词： anion exchange chemistry flexible energy storage hybrid energy storage hydrogel electrolytes renewable electrolytes sodium storage

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Real-Time Tunable Gas Sensing Platform Based on SnO2 Nanoparticles Activated by Blue Micro-Light-Emitting Diodes

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Nano-Micro Letters 2024年第12期 111-127页

作者： Gi Baek Nam ju.g-El Ryu Tae Hoon Eom Seung ju.Kim ju. Min Suh Seungmin Lee Sungkyun Choi Cheon Woo Moon Seon ju.Park Soo Min Lee Byungsoo Kim Sung hyuk Park Jin Wook Yang Sangjin Min Sohyeon Park Sung Hwan Cho hyuk Jin Kim Sang Eon ju. Tae Hyung Lee Yeong Jae Kim Jae Young Kim Young Joon Hong Jong-In Shim Hyung-Gi Byun Yongjo Park Inkyu Park Sang-Wan Ryu Ho Won Jang Department of Materials Science and Engineering Seoul National University Research Laboratory of Electronics Department of Mechanical Engineering Massachusetts Institute of Technology Ming Hsieh Department of Electrical and Computer Engineering University of Southern California Department of Display Materials Engineering Soonchunhyang University Department of Photonics and Nanoelectronics BK21 FOUR ERICA-ACE Center Hanyang University ERICA Department of Nanotechnology and Advanced Materials Engineering Sejong University Department of Electronics Information and Communication Engineering Kangwon National University Advance Institute of Convergence Technology Seoul National University Department of Mechanical Engineering Korea Advanced Institute of Science and Technology Department of Physics Chonnam National University

Micro-light-emitting diodes（μLEDs） have gained significant interest as an activation source for gas sensors owing to their advantages, including room temperature operation and low power consumption. However, despite these benefits, challenges still exist such as a limited range of detectable gases and slow response. In this study, we present a blue μLED-integrated light-activated gas sensor array based on SnO2nanoparticles（NPs） that exhibit excellent sensitivity, tunable selectivity, and rapid detection with micro-watt level power consumption. The optimal power for μLED is observed at the highest gas response, supported by finite-difference time-domain simulation. Additionally, we first report the visible light-activated selective detection of reducing gases using noble metal-decorated SnO2NPs. The noble metals induce catalytic interaction with reducing gases, clearly distinguishing NH3, H2, and C2H5OH. Real-time gas monitoring based on a fully hardwareimplemented light-activated sensing array was demonstrated, opening up new avenues for advancements in light-activated electronic nose technologies.

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Designing a Biomimetic Ornithopter Capable of Sustained and Controlled Flight

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Journal of Bionic Engineering 2008年第1期5卷 39-47页

作者： Joon hyuk Park Kwang-Joon yoon Department of Aerospace Information System and Artificial Muscle Research Center Konkuk University Seoul 143-701 Korea

We describe the design of four ornithopters ranging in wing span from 10 cm to 40 cm, and in weight from 5 g to 45 g. The controllability and power supply are two major considerations, so we compare the efficiency and characteristics between different types of subsystems such as gearbox and tail shape. Our current omithopter is radio-controlled with inbuilt visual sensing and capable of takeoff and landing. We also concentrate on its wing efficiency based on design inspired by a real insect wing and consider that aspects of insect flight such as delayed stall and wake capture are essential at such small size. Most importantly, the advance ratio, controlled either by enlarging the wing beat amplitude or raising the wing beat frequency, is the most significant factor in an ornithopter which mimics an insect.

关键词： biomimetic ornithopter flapping wing unsteady state low Reynolds number

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Key-Value Store Coupled with an Operating System for Storing Large-Scale Values

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Computers, Materials & Continua 2022年第11期73卷 3333-3350页

作者： Jeonghwan Im hyuk-yoon Kwon Graduate School of Data Science Seoul National University of Science and TechnologySeoulKorea Department of Industrial Engineering Graduate School of Data ScienceResearch Center for Electrical and Information ScienceSeoul National University of Science and TechnologySeoulKorea

The key-value store can provide flexibility of data types because it does not need to specify the data types to be stored in advance and can store any types of data as the value of the key-value *** types of studies have been conducted to improve the performance of the key-value store while maintaining its ***,the research efforts storing the large-scale values such as multimedia data files(e.g.,images or videos)in the key-value store were *** this study,we propose a new key-value store,WR-Store++aiming to store the large-scale values ***,it provides a new design of separating data and index by working with the built-in data structure of the Windows operating system and the file *** utilization of the built-in data structure of the Windows operating system achieves the efficiency of the key-value store and that of the file system extends the limited space of the storage *** also present chunk-based memory management and parallel processing of WR-Store++to further improve its performance in the GET *** the experiments,we show that WR-Store++can store at least 32.74 times larger datasets than the existing baseline key-value store,WR-Store,which has the limitation in storing large-scale data ***,in terms of processing efficiency,we show that WR-Store++outperforms not only WR-Store but also the other state-ofthe-art key-value stores,LevelDB,RocksDB,and BerkeleyDB,for individual key-value operations and mixed workloads.

关键词： Key-value stores large-scale values chunk-based memory management parallel processing

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New approaches to gastric cancer staging:Beyond endoscopic ultrasound,computed tomography and positron emission tomography

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World Journal of Gastroenterology 2014年第38期20卷 13783-13790页

作者： hyuk yoon Dong Ho Lee Department of Internal Medicine Seoul National University Bundang Hospital Department of Internal Medicine and Liver Research Institute Seoul National University College of Medicine

Currently, there is no single gold standard modality for staging of gastric cancer and several methods have been used complementarily in the each clinical situation. To make up for the shortcomings of conventional modalities such as endoscopic ultrasound, computed tomography and 18F-fluoro-2-deoxyglucose positron emission tomography, numerous attempts with new approaches have been made for gastric cancer staging. For T staging, magnifying endoscopy with narrow-band was evaluated to differentiate mucosal cancer from submucosal cancer. Single/double contrast-enhanced ultrasound and diffusion-weighted magnetic resonance imaging were also tried to improve diagnostic accuracy of gastric cancer. For intraoperative staging with sentinel node mapping, indocyanine green infrared and fluorescence imaging was introduced. In addition, to detect micrometastasis, real-time reverse transcription-polymerase chain reaction system with multiple markers was studied. Staging laparoscopy using 5-aminolevulinic acid-mediated photodynamic diagnosis and percutaneous diagnostic peritoneal lavage were also evaluated. However, most studies reporting new staging methods is preliminary and further studies for validation in clinical practice are needed. In this mini-review, we discuss new progress in gastric cancer staging. Especially, we focus on new diagnostic approach to gastric cancer staging beyond the conventional modalities and briefly review the remarkable clinical results of the studies published over the past three years.

关键词： Gastric cancer Neoplasm staging Diagnostic accuracy New methods New approaches

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