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Highly Elastic,Bioresorbable Polymeric Materials for Stretchable,Transient Electronic Systems

Nano-Micro Letters 2024年第6期16卷 1-13页

作者： Jeong‑Woong Shin Dong‑Je Kim Tae‑Min Jang Won Bae Han Joong Hoon Lee Gwan‑Jin Ko Seung Min Yang Kaveti Rajaram Sungkeun Han Heeseok Kang Jun Hyeon lim Chan‑Hwi Eom Amay J.Bandodkar Hanul Min Suk‑Won Hwang KU‑KIST Graduate School of Converging Science and Technology Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea SK Hynix 2091Gyeongchung‑daeroBubal‑eupIcheon‑siGyeonggi‑do 17336Republic of Korea Hanwha Systems Co. Ltd.188Pangyoyeok‑roBundang‑guSeongnam‑siGyeonggi‑do 13524Republic of Korea Department of Electrical and Computer Engineering North Carolina State UniversityRaleighNC 27606USA Center for Advanced Self‑Powered Systems of Integrated Sensors and Technologies(ASSIST) North Carolina State UniversityRaleighNC 27606USA Department of Integrative Energy Engineering Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea Biomaterials Research Center Korea Institute of Science and Technology(KIST)5 Hwarang‑ro 14‑gilSeongbuk‑guSeoul 02792Republic of Korea Semiconductor R&D Center Samsung Electronics Co.Ltd.Hwaseong‑siGyeonggi‑do 18448Republic of Korea Center for Advanced Biomolecular Recognition Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea

Substrates or encapsulants in soft and stretchable formats are key components for transient,bioresorbable electronic systems;however,elastomeric polymers with desired mechanical and biochemical properties are very limited compared to nontransient ***,we introduce a bioresorbable elastomer,poly(glycolide-co-ε-caprolactone)(PGCL),that contains excellent material properties including high elongation-at-break(<1300%),resilience and toughness,and tunable dissolution *** of PGCLs as polymer matrices,in combination with conducing polymers,yields stretchable,conductive composites for degradable interconnects,sensors,and actuators,which can reliably function under external *** of device components with wireless modules demonstrates elastic,transient electronic suture system with on-demand drug delivery for rapid recovery of postsurgical wounds in soft,time-dynamic tissues.

关键词： Biodegradable elastomer Conductive polymer composites Biomedical device Transient electronics

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Neuralgic amyotrophy with hourglass-like constrictions:A case report

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World Journal of Clinical Cases 2024年第34期12卷 6728-6735页

作者： Mi-Hyeon Bang Ha-lim Song Seok Hahn Wanil Kim Hwan-Kwon Do Department of Physical Medicine and Rehabilitation Haeundae Paik HospitalInje University College of MedicineBusan 48108South Korea Department of Radiology Haeundae Paik HospitalInje University College of MedicineBusan 48108South Korea Division of Biochemistry Department of Convergence Medical ScienceInstitute of Medical ScienceGyeongsang National University College of MedicineJinju 52727South Korea Department of Physical Medicine and Rehabilitation Dongnam Institute of Radiological and Medical SciencesBusan 46033South Korea

BACKGROUND Neuralgic amyotrophy(NA)is a rare disease with sudden upper limb pain followed by affected muscle *** most commonly affected area in NA is the upper part of the brachial plexus,and the paraspinal muscles are rarely affected(1.5%),making these cases difficult to distinguish from cervical *** SUMMARY A 76-year-old male presented to the emergency department with left hip pain *** undergoing left femoral neck fracture surgery,he experienced sudden left shoulder pain for 10 days with subsequent left arm *** spine computed tomography revealed mild right asymmetric intervertebral disc bulging with a decreased C5-6disc *** weeks later,an electrodiagnostic study confirmed brachial plexopathy findings involving the cervical *** resonance neurography was performed for a differential *** enhancement was identified at the upper trunk of the brachial plexus,including the C5 nerve root.A suprascapular nerve hourglass-like focal constriction(HLFC)was also identified,confirming *** being diagnosed with NA,the patient received 15 mg prednisolone,twice daily,for 3 *** therapy was initiated,including left arm strengthening exercises and electrical stimulation *** shoulder muscle strength significantly improved one CONCLUSION NA's unique features like HLFC and paraspinal involvement are crucial for accurate diagnosis,avoiding confusion with cervical radiculopathy.

关键词： Neuralgic amyotrophy Cervical radiculopathy Hourglass-like focal constriction Paraspinal muscle Magnetic resonance neurography Case report

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Newcastle Disease in Chickens of Smallholder Farmers at Krang Yov Commune S’ang District,Kandal Province

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Journal of Environmental Science and Engineering(A) 2024年第2期13卷 68-75页

作者： Sokha Thim Chhay Kheang lim Kroesna Kang Sath Keo Vutey Venn Kouch Theng Faculty of Veterinary Medicine Royal University of AgriculturePhnom Penh 12400Cambodia General Directorate of Animal Health and Production Phnom Penh 120603Cambodia Graduate School Royal University of AgriculturePhnom Penh 12400Cambodia

The study was conducted in Krang Yov commune,S’ang district,Kandal province and was conducted in three villages,including Kampong Po,Andong and Svay Damnak *** the total,88 families were selected for interview by using snowball technic of nonprobability *** to the results of the interviews,it showed that the number of farmers who raised chickens and had participated in training was very low number,ranging from 10.71%to 34.38%.For chicken raising system,the free ranging was the most popular by allowing the chicken to scavenge around the village,however,the total confinement was also *** local breed was more popular and the purpose of raising was for selling meat,however there were few households that raised the fighting cock for *** number of chickens owned per household,was mostly less than 20 birds,while,the average number of birds per household ranged from 16.82 birds to 37.66 ***,the average number of birds per household was significant different between the households who have participated in chicken raising training and those who never participated(p<0.05),accounting for 47.52 birds and 19.85 birds,*** the chicken feed,most of the farmers in those three villages used the concentration feed to offer the chicken,especially for supplementation,but,the whole rice was also used to supplement *** vaccination for chicken was significant different among the villages(p<0.05),in which the household in Kampong Po village had highest percentage of vaccinating their chicken,40.63%,than those in Svay Damnak and Andong *** Newcastle vaccination was the more popular in those ***,all of the households have experienced with the disease,especially ND(Newcastle Disease)accounting for 67.05%,followed by influenza and fowl *** chicken got sick,most of farmers had treated their chicken with different methods,especially buying the medicine from the store and treatment by themselves were mostly applicabl

关键词： Raising system vaccination biosecurity ND

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Outcomes of a non-randomised audit of single pigtail suture stents in urolithiasis management of Asian patients in Singapore

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Asian Journal of Urology 2024年第2期11卷 324-330页

作者： Ee Jean lim Zhen Wei Choo Reshma Mangat Pradeep Durai Sarvajit Biligere Yiquan Tan Loh Hin Yeung Marcus Nicole Andrea Seet Li Ting Chin Tiong Heng Stefania Ferreti Vineet Gauhar Urology Department Singapore General HospitalSingapore Urology Department Tan Tock Seng HospitalSingapore Urology Department Ng Teng Fong HospitalSingapore Urology Department Azienda Ospedaliera-Uiversitaria(Hospital and University of Parma)ParmaItaly

Objective:Double-J(DJ)ureteric stents are commonly placed perioperatively for semirigid or flexible ureteroscopic renal *** is believed that lesser stent material within the bladder mitigates stent-related *** study aimed to evaluate the J-Fil ureteral stent,a single pigtail suture stent compared with conventional DJ stent in relation to stent symptoms in an Asian population undergoing ureterorenal ***:Based on internal audit committee recommendation approval,the records of 50 patients retrieved,available data of 41 patients who were prospectively enrolled into two groups(Group 1[J-Fil stent group],n=21 and Group 2[DJ stent group],n=20)between August 2020 to January 2021,were *** compared were nature of procedure,stone location and size,ease of deployment or removal,and complications.A modified universal stent symptom questionnaire was used to assess morbidity of stent symptoms within 48 h of insertion and at ***:Both groups had similar median age,distribution in male to female ratio,and stone *** overall median universal stent symptom questionnaire score at insertion was similar for bladder pain,flank or loin pain,and quality of life between Group 1 and 2;however,at removal Group 1 fared significantly better than Group 2,especially for flank or loin pain and pain at *** groups had similar ease in insertion with no hospital ***:Our audit favoured the single pigtail suture stent in Asian ureters in mitigating stent-related *** showed a good safety profile with easy deployment and *** promises a new standard in stenting.

关键词： Stent Ureteroscopy Pigtail suture stent Asianpatient Flexible ureteroscopic renal surgery

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聚酯合成催化技术的研究进展

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高校化学工程学报 2024年第1期38卷 1-13页

作者：王翼嵩王松林姜冰雪李家旭邓维史胜斌 lim Khak Ho 王青月杨轩刘平伟王文俊浙江大学化学工程联合国家重点实验室浙江杭州310058 浙江大学衢州研究院浙江衢州324000 浙江恒逸石化有限公司浙江杭州311209

聚酯工业的进步离不开先进的催化技术。本文对聚酯合成催化体系的研究进展进行了评述。着眼于目前占主导的金属催化剂,对锑、钛、锡、锗、铝等催化剂在活性、副反应等方面所开展的金属复合、配体改性、载体负载等工作进行了总结,介绍了... 详细信息

聚酯工业的进步离不开先进的催化技术。本文对聚酯合成催化体系的研究进展进行了评述。着眼于目前占主导的金属催化剂,对锑、钛、锡、锗、铝等催化剂在活性、副反应等方面所开展的金属复合、配体改性、载体负载等工作进行了总结,介绍了有机物、离子液体、酶等非金属催化体系的研究进展,并对促进聚酯合成的电、光、微波等催化辅助技术进行了评述。催化能力强、副反应少、聚合条件温和催化体系的开发有助于聚酯品质的提升,将先进的表征手段、模型研究以及聚酯构效关系规律探索结合到催化体系的研究中,可加速高效聚酯催化技术的研发。

关键词：聚酯金属催化剂缩聚开环聚合非金属催化剂

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基于拉曼光谱技术的聚合物材料制备与组成分布的研究进展

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高校化学工程学报 2024年第3期38卷 341-353页

作者：卫人予陈八斤邓维吴徐冰包界杰张浩然吴彬王小君 lim Khak Ho 王文俊浙江大学工程师学院衢州分院浙江衢州324000 浙江大学衢州研究院浙江衢州324000 浙江传化化学集团浙江杭州311215 化学工程联合国家重点实验室(浙江大学) 浙江杭州310058

聚合物材料制备过程和聚合物中添加剂的含量及分布决定了材料的性能,拉曼光谱技术为相关研究提供了一种有效的表征手段。基于拉曼光谱的基本原理,介绍了表面增强拉曼光谱、拉曼光谱成像、激光显微共聚焦拉曼光谱等多种拉曼光谱衍生技术... 详细信息

聚合物材料制备过程和聚合物中添加剂的含量及分布决定了材料的性能,拉曼光谱技术为相关研究提供了一种有效的表征手段。基于拉曼光谱的基本原理,介绍了表面增强拉曼光谱、拉曼光谱成像、激光显微共聚焦拉曼光谱等多种拉曼光谱衍生技术,总结了相关技术在聚合物加工和聚合反应过程中的应用,评述了聚合物中添加剂分布的检测,涵盖了乳化剂、染料以及其他添加剂的浓度、分布及迁移规律等,并对拉曼光谱衍生技术进行了展望。

关键词：拉曼光谱显微拉曼光谱拉曼光谱成像技术聚合物材料添加剂

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钒钛铁尾矿制备绿色建筑材料的研究进展

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材料导报 2024年第19期38卷 115-124页

作者：田小平王长龙 Hidayati Asrah lim Chung Han 平浩岩齐洋马锦涛荆牮霖刘治兵郑永超翟玉新刘枫河北工程大学土木工程学院河北邯郸056038 马来西亚沙巴大学工程学院沙巴哥打京那巴鲁88400 北京建筑材料科学研究总院有限公司固废资源化利用与节能建材国家重点实验室北京100041 中铁建设集团有限公司北京100040 中铁建设集团建筑发展有限公司北京100070

钒钛磁铁矿是以铁、钒、钛为主的多金属元素共生的复合矿,在世界分布不均衡。中国是该矿石的主要产出国之一,该矿石分布在五个主要矿带。钒钛铁尾矿是钒钛磁铁矿选矿过程中产生的固体工业废弃物,是一种多金属伴生的铁尾矿。该尾矿在中... 详细信息

钒钛磁铁矿是以铁、钒、钛为主的多金属元素共生的复合矿,在世界分布不均衡。中国是该矿石的主要产出国之一,该矿石分布在五个主要矿带。钒钛铁尾矿是钒钛磁铁矿选矿过程中产生的固体工业废弃物,是一种多金属伴生的铁尾矿。该尾矿在中国的堆存量巨大,富含很多有用化学组分,也被称为人工矿床。该尾矿以硅酸盐为主,主要化学成分是二氧化硅、三氧化二铝、氧化钙和氧化铁等,主要矿物是脉石矿物。国内外学者对其在绿色建筑材料综合利用方面做了很多有益探索,但总体来看,这些研究更多停留在实验室里。主要原因是(1)不同尾矿库甚至同一尾矿库的钒钛铁尾矿理化性能可能有较大差异,尾矿原料的稳定性不足;(2)受尾矿原料不稳定的理化性能影响,中试结果经常出现较大差异,难以实现规模化利用;(3)钒钛铁尾矿库大多地处偏僻,运输成本高,且缺乏高附加值的尾矿产品,规模以上企业因投入大产出小望而生畏。本文综述了钒钛铁尾矿在中国的地域分布和堆存量,重点研究了其化学组成、矿物组成、粒度分布和重金属浸出,分析了其作为主要原料在绿色建筑材料方面的研究进展,指出了存在问题并展望了发展前景。

关键词：钒钛磁铁矿钒钛铁尾矿绿色建筑材料混凝土矿物掺合料

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Evaluation of Functional and Radiological Outcome of Arthroscopic-Assisted Anatomical Coracoclavicular (CC) and Acromioclavicular (AC) Ligament Reconstruction in Chronic AC Joint Dislocation

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Journal of Biosciences and Medicines 2024年第3期12卷 223-237页

作者： Muhammad Hafiz Daud lim Wee Cheong Ang Xi Yuan Che Wan Mohd Shaiful Nizam Siti Hawa Tahir Arthroscopy Sports Injury Unit Orthopedic Department Hospital Kuala Lumpur Kuala Lumpur Malaysia

Introduction: Acromioclavicular (AC) joint dislocation is a common shoulder injury, comprising 9% - 12% of shoulder girdle injuries. Optimal management remains challenging, with treatment decisions guided by the Rockwood classification system. Controversies surround grade III injuries, necessitating further classification. Non-operative treatment has shown favorable outcomes, while surgical interventions vary. Anatomical coracoclavicular reconstruction (ACCR) has demonstrated biomechanical advantages over traditional methods. Arthroscopic techniques offer advantages, minimizing deltoid detachment and allowing concurrent pathology identification. This study evaluates the outcomes of arthroscopic-assisted ACCR in chronic AC joint dislocation. Surgical Technique: Arthroscopic-assisted ACCR involves meticulous portal placement, tendon graft harvesting, diagnostic arthroscopy, and coracoid exposure. The clavicle tunnels were made to mimic the conoid and trapezoid ligament positions, using FibreTape#2 loop and Dog Bone Button for correct placement against the coracoid base, and passing the semitendinosus graft through to reconstruct the conoid ligament, reduction done and graft follow through for anatomical reconstruction. Methods: A retrospective cohort study at Hospital Kuala Lumpur analyzed 35 patients undergoing arthroscopic-assisted ACCR for Rockwood grade III - V AC joint dislocations. Inclusion criteria encompassed trauma ≥ 3 weeks prior, no prior shoulder injuries, and ≥12-month follow-up. Functional and radiological assessments utilized ASES scores and coracoclavicular distances, respectively. Statistical analysis employed descriptive statistics and logistic regression. Results: The mean age was 38.9 years (SD 11.26), and 34 of 35 patients were male. Grade IV injuries were predominant (37.1%). Waiting time for surgery averaged 234.9 days. Functional improvement was substantial postoperatively (ASES: 55.5 to 88.9). Radiological outcomes demonstrated reduced coraco

关键词： Arthroscopic-Assisted Anatomical Coracoclavicular and Acromioclavicular Ligament Reconstruction (AACR) Chronic Acromioclavicular Dislocation ASES Score Rockwood Classification

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Viral-host molecular interactions and metabolic modulation:Strategies to inhibit flaviviruses pathogenesis

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World Journal of Virology 2024年第4期13卷 41-50页

作者： Zeeshan Ahmad Khan Mukesh Kumar Yadav Dong-Woo lim Hojun Kim Jing-Hua Wang AbuZar Ansari Biohealth Products Research Center(BPRC) Research Center for Agedlife Redesign(RCAR)Department of Physical TherapyINJE UniversityGimhae 5084South Korea Department of Microbiology Central University of PunjabBathinda 151401India Department of Diagnostics College of Korean MedicineDongguk UniversityGoyang 10326South Korea Division of Rehabilitation Medicine of Korean Medicine Department of Oriental Rehabilitation MedicineDongguk UniversityIlsan HospitalGoyang 10326South Korea Institute of Oriental Medicine Dongguk UniversityGoyang 10326South Korea Department of Obstetrics and Gynecology Ewha Womans UniversitySeoul 07985South Korea

Flaviviruses,which include globally impactful pathogens,such as West Nile virus,yellow fever virus,Zika virus,Japanese encephalitis virus,and dengue virus,contribute significantly to human *** the ongoing emergence and resurgence of flavivirus-mediated pathogenesis,the absence of specific therapeutic options remains a challenge in the prevention and treatment of flaviviral *** the intricate processes of fusion,transcription,replication,and maturation,the complex interplay of viral and host metabolic interactions affects *** interactions involve metabolic molecules,such as amino acids,glucose,fatty acids,and nucleotides,each playing a pivotal role in the replication and maturation of *** viral-host metabolic molecular interactions hijack and modulate the molecular mechanisms of host metabolism.A comprehensive understanding of these intricate metabolic pathways offers valuable insights,potentially unveiling novel targets for therapeutic interventions against flaviviral *** review emphasizes promising avenues for the development of therapeutic agents that target specific metabolic molecules,such as amino acids,glucose,fatty acids,and nucleotides,which interact with flavivirus replication and are closely linked to the modulation of host *** clinical limitations of current drugs have prompted the development of new inhibitory strategies for flaviviruses based on an understanding of the molecular interactions between the virus and the host.

关键词： Flavivirus Nonstructural proteins Virus-host interaction Metabolism Inhibitors Vaccines

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基于遥感数据与数值模式的浒苔漂移输运预报:以江苏近海为例

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海洋学研究 2024年第1期42卷 69-82页

作者：林连杰董昌明嵇宇翔 lim KAM SIAN Kenny Thiam Choy 李兆鑫蒋星亮曹玉晗高慧王胜强曹茜南京信息工程大学海洋科学学院江苏南京210044 江苏省连云港市气象局江苏连云港222006 无锡学院江苏无锡214105 华东师范大学河口海岸学国家重点实验室上海200241 复旦大学大气与海洋科学系上海200433 江苏海洋大学海洋技术与测绘学院江苏连云港222005

浒苔暴发是影响全球近岸海域最为严重的海洋灾害之一,引起了社会各方的重视。该研究基于大气-波浪-海洋集合模式,根据卫星遥感数据提取浒苔位置,采用拉格朗日漂流模式对浒苔进行追踪并预报其漂移路径。与卫星观测结果对比表明,该集合模... 详细信息

浒苔暴发是影响全球近岸海域最为严重的海洋灾害之一,引起了社会各方的重视。该研究基于大气-波浪-海洋集合模式,根据卫星遥感数据提取浒苔位置,采用拉格朗日漂流模式对浒苔进行追踪并预报其漂移路径。与卫星观测结果对比表明,该集合模式能够较好地预报浒苔的位置、分布及其漂移路径。此外,该研究还讨论了Stokes漂流对于模式预报的影响,结果表明考虑Stokes漂流可以修正浒苔漂移路径,有效提高预报的准确性。

关键词：浒苔模式预报 Stokes漂流江苏近海

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