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npj Flexible Electronics 2022年第1期6卷 642-652页

作者： Aadil Waseem Ameer Abdullah Indrajit V.Bagal Jun-Seok Ha june key lee Sang-Wan Ryu Department of Physics Chonnam National UniversityGwangju 61186Republic of Korea Optoelectronics Convergence Research Center Chonnam National UniversityGwangju 61186Republic of Korea

Human skin contains slowly adaptive(SA)and rapidly adaptive(RA)mechanoreceptors,which respond differently to external *** on human tactile perception principles,the fabrication of a self-powered electronic skin(e-skin)that simultaneously mimics SA-and RA-mechanoreceptors is a prime need for robots and artificial prosthetics to interact with the surrounding ***,the complex process of merging multimode sensors to mimic SA-and RA-mechanoreceptors hinders their utilization in *** proposed SA-and RA-mechanoreceptors based on n-type and semi-insulating GaN nanowire *** SA-and RA-mechanoreceptors demonstrated distinguished features such as grasping of objects and detection of their surface *** on piezoelectric sensing principles,the proposed e-skin can simultaneously mimic static and dynamic pressure *** further detected several stimuli of various pressures with low and high *** response and reset times showed by SA-mechanoreceptors were 11 and 18 ms under 1-Hz frequency,which are rapid enough for practical e-skin applications.

关键词： arrays rapid conductivity

Etanercept-synthesizing adipose-derived stem cell secretome:A promising therapeutic option for inflammatory bowel disease

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World Journal of Gastrointestinal Surgery 2024年第3期16卷 882-892页

作者： Say-june Kim Ok-Hee Kim Ha-Eun Hong Ji Hyeon Ju Do Sang lee Department of Surgery Seoul St.Mary’s HospitalCollege of Medicinethe Catholic University of KoreaSeoul 06591South Korea Catholic Central Laboratory of Surgery Institute of Biomedical IndustryCollege of Medicinethe Catholic University of KoreaSeoul 06591South Korea Division of Rheumatology Department of Internal MedicineSeoul St.Mary’s HospitalCollege of MedicineThe Catholic University of KoreaSeoul 06591South Korea

BACKGROUND Inflammatory bowel disease(IBD)is a chronic inflammatory condition of the gastrointestinal tract,with tumor necrosis factor(TNF)-αplaying a key role in its ***,a decoy receptor for TNF,is used to treat inflammatory *** secretome derived from adipose-derived stem cells(ASCs)has anti-inflammatory effects,making it a promising therapeutic option for *** To investigate the anti-inflammatory effects of the secretome obtained from ASCs synthesizing etanercept on colon cells and in a dextran sulfate sodium(DSS)-induced IBD mouse *** ASCs were transfected with etanercept-encoding mini-circle plasmids to create etanercept-producing *** secretory material from these cells was then tested for anti-inflammatory effects both in vitro and in a DSS-induced IBD mouse *** This study revealed promising results indicating that the group treated with the secretome derived from etanercept-synthesizing ASCs[Etanercept-Secretome(Et-Sec)group]had significantly lower expression levels of inflammatory mediators,such as interleukin-6,Monocyte Chemoattractant Protein-1,and TNF-α,when compared to the control secretome(Ct-Sec).Moreover,the Et-Sec group exhibited a marked therapeutic effect in terms of preserving the architecture of intestinal tissue compared to the *** These results suggest that the secretome derived from ASCs that synthesize etanercept has potential as a therapeutic agent for the treatment of IBD,potentially enhancing treatment efficacy by merging the anti-inflam-matory qualities of the ASC secretome with etanercept's targeted approach to better address the multifaceted pathophysiology of IBD.

关键词： Adipose-derived stem cells Etanercept Inflammatory bowel disease Secretome Tumor necrosis factor-α

Fortifying Smart Grids: A Holistic Assessment Strategy against Cyber Attacks and Physical Threats for Intelligent Electronic Devices

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Computers, Materials & Continua 2024年第8期80卷 2579-2609页

作者： Yangrong Chen june Li Yu Xia Ruiwen Zhang Lingling Li Xiaoyu Li Lin Ge School of Computer Science Zhengzhou University of AeronauticsZhengzhou450046China Henan Xin’an Century Technology Co. Ltd.Henan Data Security Engineering Technology Research CenterZhengzhou450046China key Laboratory of Aerospace Information Security and Trusted Computing Ministry of EducationSchool of Cyber Science and EngineeringWuhan UniversityWuhan430072China

Intelligent electronic devices(IEDs)are interconnected via communication networks and play pivotal roles in transmitting grid-related operational data and executing control *** the context of the heightened security challenges within smart grids,IEDs pose significant risks due to inherent hardware and software vulner-abilities,as well as the openness and vulnerability of communication *** grid security,distinct from traditional internet security,mainly relies on monitoring network security events at the platform layer,lacking an effective assessment mechanism for ***,we incorporate considerations for both cyber-attacks and physical faults,presenting security assessment indicators and methods specifically tailored for ***,we outline the security monitoring technology for IEDs,considering the necessary data sources for their security ***,we classify IEDs and establish a comprehensive security monitoring index system,incorporating factors such as running states,network traffic,and abnormal *** index system contains 18 indicators in 3 ***,we elucidate quantitative methods for various indicators and propose a hybrid security assessment method known as GRCW-hybrid,combining grey relational analysis(GRA),analytic hierarchy process(AHP),and entropy weight method(EWM).According to the proposed assessment method,the security risk level of IEDs can be graded into 6 levels,namely 0,1,2,3,4,and *** higher the level,the greater the security ***,we assess and simulate 15 scenarios in 3 categories,which are based on monitoring indicators and real-world situations encountered by *** results show that calculated security risk level based on the proposed assessment method are consistent with actual ***,the reasonableness and effectiveness of the proposed index system and assessment method are validated.

关键词： Smart grid intelligent electronic device security assessment abnormal behaviors network traffic running states

BRI1-Associated Receptor Kinase 1 Regulates Guard Cell ABA Signaling Mediated by Open Stomata 1 in Arabidopsis

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Molecular Plant 2016年第3期9卷 447-460页

作者： Yun Shang Changbo Dai Myeong Min lee june M. Kwak Kyoung Hee Nam Department of Biological Sciences Sookmyung Women's University Seou1140-742 Republic of Korea Department of Systems Biology Yonsei University Seou1120-749 Republic of Korea Department of New Biology Center for Plant Aging Research Institute for Basic Science Daegu Gyeongbuk Institute of Science and Technology Daegu 711-873 Republic of Korea

Stomatal movements are critical in regulating gas exchange for photosynthesis and water balance between plant tissues and the atmosphere. The plant hormone abscisic acid （ABA） plays key roles in regulating stomatal closure under various abiotic stresses. In this study, we revealed a novel role of BAKI in guard cell ABA signaling. We found that the brassinosteroid （BR） signaling mutant bakl lost more water than wild- type plants and showed ABA insensitivity in stomatal closure. ABA-induced OST1 expression and reactive oxygen species （ROS） production were also impaired in bakl. Unlike direct treatment with H202, overex-pression of OST1 did not completely rescue the insensitivity of bakl to ABA. We demonstrated that BAK1 forms a complex with OST1 near the plasma membrane and that the BAKI/OST1 complex is increased in response to ABA in planta. Brassinolide, the most active BR, exerted a negative effect on ABA-induced formation of the BAK1/OST1 complex and OST1 expression. Moreover, we found that BAK1 and ABI1 oppositely regulate OST1 phosphorylation in vitro, and that ABI1 interacts with BAK1 and inhibits the interaction of BAK1 and OST1. Taken together, our results suggest that BAK1 regulates ABA-induced stomatal closure in guard cells.

关键词： BAK1 OST1 ABA-induced stomatal closure Arabidopsis thaliana

Drought Impacts on Community Livelihoods in the Upper Ewaso Ng’iro Basin, Kenya

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Journal of Geoscience and Environment Protection 2023年第12期11卷 81-96页

作者： Bancy Mati Amos Karithi june Kimaiyo School of Biosystems and Environmental Engineering Jomo Kenyatta University of Agriculture and Technology Nairobi Kenya Community Development Meru Kenya

Drought is the most common of all natural disasters in Kenya, in terms of the large areas covered, populations adversely affected and socio-economic impacts. The Upper Ewaso Ng’iro Basin of Kenya is a drought-prone zone, lying on the lee slopes of both Mt. Kenya and Aberdares range. This study sought to determine opinions of communities on drought and its impacts on their livelihoods. Baseline data were collected from published reports and literature reviews augmented with information gathered through interviews with communities and key informants. Field data were collected mainly in the three counties of Laikipia, Isiolo and Meru, utilizing semi-structured questionnaire surveys. A total of 187 respondents were interviewed of which 150 were community members and 37 were policy makers. The typologies of community respondents interviewed included small-scale farmers, large commercial farmers, pastoralists, conservancies, water user associations and conservation groups. It was found that drought is a serious disaster in the Upper Ewaso Ng’iro basin, which has been escalating. Communities experienced negative impacts of drought, with the biggest problem being water scarcity, closely followed by food and fodder shortages and poor incomes from farming. Other problems include spikes in livestock theft, loss of livestock from diseases and shortage of pasture. Conflicts over water and pasture escalate during droughts and crime increases due to lack of on-farm employment opportunities. Since drought events are natural phenomena expected to happen any time, there is need to identify how to improve local capacities in drought preparedness, adaptation and resilience.

关键词： Drought Impacts Communities Livelihoods Laikipia Isiolo Meru Kenya

Two hundred endoscopic extraperitoneal inguinal hernioplasties: cost containment by reusable instruments

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中华医学杂志(英文版) 2002年第6期 88-91页

作者： LAU Hung ,lee Francis ,PATIL Nivritti-Gajanan ,YUEN Wai-key

Objective To report our experience of 200 endoscopic totally extraperitoneal inguinal hernioplasties utilizing reusable *** Between August 1999 and june 2000, 200 endoscopic totally extraperitoneal hernioplasties were performed on 163 patients. The mean age of the study population was 63 years with a male to female ratio of 157∶6. Perioperative details and postoperative outcomes were prospectively evaluated and *** A total of 196 (98%) endoscopic extraperitoneal inguinal hernioplasties were successfully performed. Conversion rates to transabdominal preperitoneal and open repairs were 1.5% (n=3) and 0.5% (n=1), respectively. There were no other intraoperative complications. Postoperative morbidity included retention of urine (n=7), wound bruising (n=2), atelectasis (n=2) and gouty arthritis (n=1). The mean visual analogue pain scores at rest were 2.3, 1.6 and 1.9 on postoperative days 0, 1 and 2, respectively. The mean length of hospital stay was 1.9 days. 113 patients (69%) returned to normal activities within one week. Of the 35 patients who experienced both open and laparoscopic repair, 80% expressed preference for endoscopic hernioplasty in the event of future *** Endoscopic extraperitoneal inguinal hernioplasty can be safely performed utilizing reusable trocars. Substantial reduction of operative cost could be achieved by the elimination of disposable instruments. Deficiencies of the reusable metallic trocar, namely peri-cannula air-leak and sliding movements of the trocar, can be overcome by purse-string suture of the fascial opening.

关键词： inguinal hernia · herniorrhaphy · laparoscopy

A New Variant of Penalty Method for Weak Linear Bilevel Programming Problems

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Wuhan University Journal of Natural Sciences 2018年第4期23卷 328-332页

作者： LIU june HONG Yunfei ZHENG Yue School of Management Huaibei Normal University Huaibei235000 Anhui China School of Information and Mathematics Yangtze UniversityJingzhou 434023 Hubei China

We present a new variant of penalty method, which is different from the existing penalty methods, for solving the weak linear bilevel programming problems. We then transform it into a single-level optimization problem using Kuhn-Tucker optimality condition and discuss the relations between them. Finally, two examples are used to illustrate the feasibility of the proposed penalty method.

关键词： bilevel programming pessimistic formulation penalty method

MicroRNAs are key regulators controlling iNKT and regulatory T-cell development and function

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Cellular & Molecular Immunology 2011年第5期8卷 380-387页

作者： Li Zhou Jang-june Park Quanhui Zheng Zheng Dong Qingsheng Mi Henry Ford Immunology Program Henry Ford Health SystemDetroitMIUSA Department of Dermatology Henry Ford Health SystemDetroitMIUSA Department of Internal Medicine Henry Ford Health SystemDetroitMIUSA Department of Cellular Biology and Anatomy Medical College of GeorgiaAugustaGAUSA

MicroRNAs(miRNAs)are an abundant class of evolutionarily conserved,small,non-coding RNAs that post-transcriptionally regulate expression of their target *** evidence indicates that miRNAs are important regulators that control the development,differentiation and function of different immune *** CD4^(+)CD25^(+)Foxp3^(+) regulatory T(Treg)cells and invariant natural killer T(iNKT)cells are critical for immune homeostasis and play a pivotal role in the maintenance of self-tolerance and ***,we review the important roles of miRNAs in the development and function of iNKT and Treg cells.

关键词： invariant natural killer T cells microRNA regulatory T cells

Injection Molding of W-Ni-Fe Nanocomposite Powder Prepared by Mechanical Alloying

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Journal of Materials Science & Technology 2001年第6期17卷 673-674页

作者： Xuanhui QU, Jinglian FAN and Baiyun HUANG State key Laboratory for Powder Metallurgy, Central South University of Technology, Changsha 410083, China [Manuscript received june 5, 2000] Central South Univ. of Technol. Changsha 410083 China

Nanocrystalline 90W-7Ni-3Fe (wt pct) composite powder was prepared by mechanical alloying and mixed with binder to form a feedstock. Its rheological and sintering behaviors were compared with those of the feedstock from the original powder. It is found that milling can increase the maximum powder loading of feedstock and enhance the sintering densification process.

关键词： Fe Ni

Novel T cells with improved in vivo anti-tumor activity generated by RNA electroporation

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Protein & Cell 2017年第7期8卷 514-526页

作者： Xiaojun Liu Shuguang Jiang Chongyun Fang Hua Li Xuhua Zhang Fuqin Zhang Carl H. june Yangbing Zhao key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology School of Basic Medical Sciences Shandong University Jinan 250012 China Center for Cellular Immunotherapies University of Pennsylvania Cancer Center Philadelphia PA 19104 USA Department of Pathology and Laboratory Medicine Perelman School of Medicine University of Pennsylvania Philadelphia PA 19104-5156 USA

The generation of T cells with maximal anti-tumor activities will significantly impact the field of T-cell- based adoptive immunotherapy. In this report, we found that OKT3/IL-2-stimulated T cells were phenotypically more heterogeneous, with enhanced anti-tumor activity in vitro and when locally administered in a solid tumor mouse model. To further improve the OKT3/IL-2-based T cell manufacturing procedure, we developed a novel T cell stimulation and expansion method in which peripheral blood mononuclear cells were electroporated with mRNA encoding a chimeric membrane protein consisting of a single-chain variable fragment against CD3 and the intracellular domains of CD28 and 4-1BB （OKT3-28BB）. The expanded T cells were phenotypically and functionally similar to T cells expanded by OKT3/IL-2. Moreover, co-electroporation of CD86 and 4-1BBL could further change the phenotype and enhance the in vivo anti-tumor activity. Although T cells expanded by the co- electroporation of OKT3-28BB with CD86 and 4-1BBL showed an increased central memory phenotype, the T cells still maintained tumor lytic activities as potent as those of OKT3/IL-2 or OKT3-28BB-stimulated T cells. In different tumor mouse models, T cells expanded by OKT3-28BB RNA electroporation showed anti-tumor activities superior to those of OKT3/IL-2 T cells. Hence, T cells with both a less differentiated phenotype and potent tumor killing ability can be generated by RNA electroporation, and this T cell manufacturing procedure can be further optimized by simply co-delivering other splices of RNA, thus providing a simple and cost-effec- tive method for generating high-quality T cells for adop- tive immunotherapy.

关键词： T lymphocytes CAR manufacture genetransfer RNA electroporation