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Radical innovation breakthroughs of biodegradation of plastics by insects:history,present and future perspectives

Frontiers of Environmental Science & Engineering 2024年第6期18卷 127-165页

作者： Shan-Shan Yang Wei-min Wu Federica Bertocchini Mark Eric Benbow Suja P.Devipriya Hyung Joon cha.Bo-Yu Peng Meng-Qi Ding Lei He Mei-Xi Li Chen-Hao Cui Shao-Nan Shi Han-Jun Sun Ji-Wei Pang Defu He Yalei Zhang Jun Yang Deyi Hou De-Feng Xing Nan-Qi Ren Jie Ding Craig S.Criddle State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China Department of Civil and Environmental Engineering William&Cloy Codiga Resource Recovery CenterStanford UniversityStanfordCA 94305USA Plasticentropy rue Thiers 28Reims 51100France Department of Entomology and Department of Osteopathic Medical Specialties Michigan State UniversityEast LansingMI 48824USA School of Environmental Studies Cochin University of Science and TechnologyKochi 682022India Department of Chemical Engineering Pohang University of Science and TechnologyPohang 37673Republic of Korea School of Environmental Science and Engineering Tongji UniversityShanghai 200092China China Energy Conservation and Environmental Protection Group CECEP Talroad Technology Co.Ltd.Beijing 100096China School of Ecological and Environmental Sciences East China Normal UniversityShanghai 200241China Research Institute for Frontier Science Beihang UniversityBeijing 100191China School of Environment Tsinghua UniversityBeijing 100084China

Insects damaging and penetrating plastic packaged materials has been reported since the *** innovation breakthroughs of plastic biodegradation have been initiated since the discovery of biodegradation of plastics by Tenebrio molitor larvae in 2015 followed by Galleria mellonella in *** we review updated studies on the insect-mediated biodegradation of *** biodegradation by insect larvae,mainly by some species of darkling beetles(Tenebrionidae)and pyralid moths(Pyralidae)is currently a highly active and potentially transformative area of *** the past eight years,publications have increased explosively,including discoveries of the ability of different insect species to biodegrade plastics,biodegradation performance,and the contribution of host and microbiomes,impacts of polymer types and their physic-chemical properties,and responsible enzymes secreted by the host and gut *** date,almost all major plastics including polyethylene(PE),polypropylene(PP),polyvinyl chloride(PVC),polyethylene terephthalate(PET),polyurethane(PUR),and polystyrene(PS)can be biodegraded by *** and ten other insect species representing the Tenebrionidae and Pyralidae *** biodegradation processes are symbiotic reactions or performed by synergistic efforts of both host and gut-microbes to rapidly depolymerize and biodegrade plastics with hourly *** digestive ezymens and bioreagents screted by the insects play an essential role in plasatic biodegradation in certain species of Tenebrionidae and Pyralidae *** research on the insect itself,gut microbiomes,transcriptomes,proteomes and metabolomes has evaluated the mecha.isms of plastic biodegradation in *** conclude this review by discussing future research perspectives on insect-mediated biodegradation of plastics.

关键词： Plastics Biodegradation Insects Gut microbiomes Enzymes

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Deep eutectic solvent-based polymer electrolyte for solid-state lithium metal batteries

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Journal of Energy Chemistry 2022年第7期31卷 363-372,I0010页

作者： Panpan Dong Xiahui Zhang Kee Sung Han Younghwan cha.min-kyu Song School of Mecha.ical and Materials Engineering Washington State UniversityWA 99164United States Materials Sciences Pacific Northwest National LaboratoryWA 99352United States

Poly(ethylene) oxide(PEO)-based electrolytes have been widely studied for solid-state lithium batteries while their ionic conductivity and lithium-ion transference number still need to be further ***, using the combined experimental and theoretical approach, we demonstrate a novel, solidstate PEO-deep eutectic solvent(DES) electrolyte for the first time. We found that the in situ formation of DES can reduce the crystallinity of PEO matrix and more Li+ions can move freely owing to the weakened coordination between ether oxygens and Li-ions. Besides, we show that more Li+ions can be dissociated from Li salts in PEO-DES electrolyte using the molecular dynamics simulations. Such liquid-free PEO-DES electrolytes showed good ionic conductivity(2.1 × 10^(-4) S cm^(-1)) which is 160% higher than that of conventional PEO-Li TFSI(8.1 × 10^(-5) S cm^(-1)) electrolyte at 60 ℃. Additionally, the PEO-DES electrolyte showed 136% increase of Li-ion transference number(0.33) compared with ionic liquid-doped PEO-Li TFSI(0.14) at 60 ℃. Moreover, the PEO-DES exhibited good compatibility with Li metal and stable Li plating/stripping behavior with little morphology cha.ge of Li metal. This research also provides new insights into the enhancement mecha.isms of novel polymer electrolytes, improving our fundamental understanding of critical cha.lenges that have impeded the adoption of solid-state lithium metal batteries.

关键词： Deep eutectic solvent Li metal batteries PEO Solid-state electrolytes Li plating/stripping

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民族地区乡村教师培训体系的外部资源融入机制探究——以怒江傈僳族自治州为例

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民族教育研究 2024年第1期35卷 125-132页

作者：茶世俊周蕊敏周品亮云南师范大学教育学部云南昆明650500 濮阳市油田第二高级中学河南濮阳457001

民族地区构建公平、高质量、可持续的乡村教师培训体系需要借助教师教育发达地区的帮扶,作为“三区三州”单列政策进行扶贫的云南省怒江傈僳族自治州更是如此。近年来,北京、上海、广东等东部发达地区政府、大中小学、培训机构、公益组... 详细信息

民族地区构建公平、高质量、可持续的乡村教师培训体系需要借助教师教育发达地区的帮扶,作为“三区三州”单列政策进行扶贫的云南省怒江傈僳族自治州更是如此。近年来,北京、上海、广东等东部发达地区政府、大中小学、培训机构、公益组织等外部机构对怒江州投入诸多培训资源,在富有成效的同时,也存在外部资源与培训机构、培训者、培训课程、学习体系等民族地区乡村教师培训体系构成要素有机融入不足的问题,主要体现为适切性不够、系统性不足、持续性不强、再生较少等。从制度理性选择理论角度,根本原因是外援者和受援者促进外部资源有机融合的制度不健全。为此,需要构建以制度为核心的有机融入机制,通过中央层面宪法规则、地方和机构层面集体选择规则以及个体层面操作规则的纵向贯通,运用导向、规划、激励、督导、评估、保障六类制度,促进民族地区内部、内外部以及外部之间围绕外部资源有机融入的协同行动。

关键词：民族地区乡村教师培训体系外部资源制度理性选择怒江傈僳族自治州

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基于计算资源动态可用性的计算卸载切换策略

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计算机应用与软件 2024年第5期41卷 33-39页

作者：茶青牛力侯鹏何敏李波云南大学信息学院云南昆明650500

计算卸载和切换是提升车载边缘计算的计算性能和服务质量的关键问题。但由于车辆的移动性,可用计算资源的动态性变化将会导致卸载场景不断变化,进而导致任务完成时间增加。为此,提出基于计算资源动态可用性的计算卸载切换策略,包括在路... 详细信息

计算卸载和切换是提升车载边缘计算的计算性能和服务质量的关键问题。但由于车辆的移动性,可用计算资源的动态性变化将会导致卸载场景不断变化,进而导致任务完成时间增加。为此,提出基于计算资源动态可用性的计算卸载切换策略,包括在路径固定情况下上传目标服务节点的选择策略和基于动态可用计算资源的切换策略。实验结果表明,相对于现有研究,所提策略能够有效地缩短任务完成时间,提升计算卸载性能。

关键词：车载边缘计算计算卸载计算切换计算切换策略

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两种大型海藻提取物对杜氏盐藻生长和代谢活性的促进作用

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水生生物学报 2024年第8期48卷 1348-1357页

作者：王婧一蔡春尔张颖董傲查敏俊何培民上海海洋大学海洋科学与生态环境学院上海201306 上海海洋大学水域环境生态上海高校工程研究中心上海201306

实验选取绿潮藻提取物和铜藻提取物作为一种高经济价值藻一一杜氏盐藻生长的营养添加剂,与传统的f/2培养基相比,探究两种大型海藻提取物对杜氏盐藻的生长和某些代谢活性(色素、碳水化合物、蛋白质、光合活性)的影响。藻类生理指标和营... 详细信息

实验选取绿潮藻提取物和铜藻提取物作为一种高经济价值藻一一杜氏盐藻生长的营养添加剂,与传统的f/2培养基相比,探究两种大型海藻提取物对杜氏盐藻的生长和某些代谢活性(色素、碳水化合物、蛋白质、光合活性)的影响。藻类生理指标和营养成分分析表明,不同浓度的藻华提取物对杜氏盐藻生长的促进效果显著。添加0.26%、0.31%、0.38%的绿潮藻提取物和添加0.24%的铜藻提取物均能够显著促进杜氏盐藻生物量增长、光合色素和营养物质的积累,但对杜氏盐藻的最大光化学效率(F_(v)/F_(m))和有效量子产量(Yield)无显著影响。研究表明,一定浓度的绿潮藻提取物和铜藻提取物能够显著促进杜氏盐藻的生长和营养物质的积累,该发现为藻华防控及利用大型藻华提取物来优化杜氏盐藻的生产提供了新的思路。

关键词：绿潮藻提取物铜藻提取物营养添加剂杜氏盐藻培养基

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Validity of fatty liver prediction scores for diagnosis of fatty liver by Fibroscan

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Hepatobiliary & Pancreatic Diseases International 2024年第4期23卷 353-360页

作者： Seogsong Jeong Sun Jae Park Seong kyun Na Sang min Park Byung-Cheol Song Yun Hwan Oh Department of Biomedical Sciences Seoul National University Graduate SchoolSeoul 03080Korea Department of Biomedical Informatics CHA University School of MedicineCHA UniversitySeongnam 13488Korea Department of Internal Medicine Inje University College of MedicineSeoul 50834Korea Department of Family Medicine Seoul National University HospitalSeoul National University College of MedicineSeoul 03080Korea Department of Internal Medicine Jeju National University HospitalJeju National University College of MedicineJeju 63241Korea Department of Family Medicine Jeju National University HospitalJeju National University College of MedicineJeju 63241Korea Department of Family Medicine Chung-Ang University Gwangmyeong HospitalChung-Ang University College of MedicineGwangmyeong 14353Korea

Background:The Korea National Health and Nutrition Examination Survey nonalcoholic fatty liver disease(K-NAFLD)score was recently developed with the intent to operationally define nonalcoholic fatty liver disease(NAFLD).However,there remained an external validation that confirmed its diagnostic performance,especially in patients with alcohol consumption or hepatitis virus ***:Diagnostic accuracy of the K-NAFLD score was evaluated in a hospital-based cohort consisting of 1388 participants who received Fibroscan®.Multivariate-adjusted logistic regression models and the contrast estimation of receiver operating cha.acteristic curves were used for validation of the K-NAFLD score,fatty liver index(FLI),and hepatic steatosis index(HSI).Results:K-NAFLD-moderate[adjusted odds ratio(aOR)=2.53,95%confidence interval(CI):1.13-5.65]and K-NAFLD-high(aOR=4.14,95%CI:1.69-10.13)groups showed higher risks of fatty liver compared to the K-NAFLD-low group after adjustments for demographic and clinical cha.acteristics,and FLI-moderate and FLI-high groups revealed aORs of 2.05(95%CI:1.22-3.43)and 1.51(95%CI:0.78-2.90),*** addition,the HSI was less predictive for Fibroscan®-defined fatty *** K-NAFLD and FLI also demonstrated high accuracy in the prediction of fatty liver in patients with alcohol consumption and chronic hepatitis virus infection,and the adjusted area under curve values were comparable between K-NAFLD and ***:Externally validation of the K-NAFLD and FLI showed that these scores may be a useful,noninvasive,and non-imaging modality for the identification of fatty *** addition,these scores also predicted fatty liver in patients with alcohol consumption and chronic hepatitis virus infection.

关键词： Nonalcoholic fatty liver disease Fatty liver index Hepatic steatosis index

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A Regional Economy's Resistance to the COVID-19 Shock: Sales Revenues of Micro-, Small-, and Medium-Sized Enterprises in South Korea

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International Journal of Disaster Risk Science 2022年第2期13卷 190-198页

作者： Seong-Jin Lee Joong-Hoo Park Seung-min cha.Donghyun Kim Department of Public Policy and Management.Pusan National University Busan 46241South Korea Department of Urban Planning and Engineering Pusan National UniversityBusan 46241South Korea

The coronavirus disease 2019(COVID-19) is a global pandemic that has heavily impacted not only the health sector, but also the economic sector in *** countries have projected a negative economic impact, and the effect on micro-, small-, and medium-sized enterprises(MSMEs) is predicted to be significantly *** study estimated the regional resistance of MSME sales revenues and identified the regional economic factors that affect resistance by analyzing South Korea, a country with one of the lowest economic impact projections from COVID-19. Resistance was estimated by comparing sales revenues and cha.ges in resistance observed during the early COVID-19 period to those recorded in the same weeks(weeks 6 to 9) of 2019. The factors that affect regional resistance were determined by conducting robust regression and spatial regression analyses. The results show that the number of confirmed COVID-19 cases, a direct risk factor, is negatively related to regional resilience, while diversity is positively related to regional resistance. To improve the regional resistance against uncertain events, this study recommends increased diversity among regional industrial structures to reduce the duration of the early shock of an unexpected adverse event.

关键词： COVID-19 Economic resistance MSMEs South Korea

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Enhancing the efficiency and scalability of perovskite solar cells through pseudo-halide salt addition

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Journal of Materials Science & Technology 2023年第34期165卷 161-169页

作者： Dohun Baek Geon Yeong Park Jeongbeom cha.Hyemi Na Dong Seok Ham min Kim School of Chemical Engineering Future Energy Research CenterJeonbuk National UniversityJeonju 54896Republic of Korea Graduate School of Integrated Energy-AI Jeonbuk National UniversityJeonju 54896Republic of Korea Chemical Materials Solutions Center Korea Research Institute of Chemical Technology(KRICT)Daejeon 34114Republic of Korea

Organic-inorganic halide perovskites have significant potential for application in next-generation solar ***,their applications are limited by cha.lenges associated with large-area processability and long-term stability owing to the presence of pinholes and defect ***,we incorporated cesium formate in a perovskite active layer using a sequential perovskite fabrication process to eliminate the defect sites of perovskites and improve the film processability via roll-to-roll(R2R)*** addition of cesium formate salt to the PbI2 layer influences the perovskite crystal formation behavior as well as increases the perovskite crystallinity and decreases the defect ***,cesium formate addition eliminated small PbI2 grains and smoothed the perovskite surface,resulting in a large crystal grain *** formate ions interact with the PbI2 component and passivate halide vacancy defects,reducing nonradiative recombination and improving cha.ge ***,the treated perovskite films were highly stable in air,exhibiting improved efficiency retention over time and achieving a power conversion efficiency(PCE)of>22%compared to the ***,the additive-treated perovskite film was processed using the R2R method,achieving a high PCE of>14%with minimal hysteresis.

关键词： Perovskite Solar Cells Pseudo-halide ion Stability Roll-to-roll process

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昆明市一起聚集性发热疫情中腺病毒3型Penton base、Hexon和Fiber基因遗传进化分析

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中华微生物学和免疫学杂志 2024年第3期44卷 241-248页

作者：刘艳艳古文鹏段忠文王钰龚娇茶琦雁吴林蔚侯敏昆明市疾病预防控制中心微生物检验科昆明650228 云南省疾病预防控制中心急性传染病防制所昆明650022 昆明市呈贡区疾病预防控制中心检验科昆明650500 玉溪市疾病预防控制中心卫生监测检验科玉溪678400

目的对昆明市一起聚集性发热疫情样本进行腺病毒检测和遗传进化分析。方法采集典型发热患者咽拭子标本,使用微流体芯片技术进行30种常见呼吸道传染病病原体核酸检测。对腺病毒核酸阳性标本使用Nanopore三代高通量测序技术进行Penton bas... 详细信息

目的对昆明市一起聚集性发热疫情样本进行腺病毒检测和遗传进化分析。方法采集典型发热患者咽拭子标本,使用微流体芯片技术进行30种常见呼吸道传染病病原体核酸检测。对腺病毒核酸阳性标本使用Nanopore三代高通量测序技术进行Penton base、Hexon和Fiber三个重要基因全长序列扩增、测定和分型鉴定,构建系统进化树,开展分子变异、遗传进化等分析。结果共采集5份标本,均检出呼吸道腺病毒及流感嗜血杆菌。对腺病毒进行Nanopore三代基因测序最终均获得Penton base、Hexon和Fiber基因全长编码区核苷酸序列,5份标本之间3个基因核苷酸相似性依次为100.0%、99.9%~100.0%和100.0%,氨基酸同源性均为100.0%;与HAdV3原型株(AY599834)核苷酸相似性最高,分别为98.6%、98.7%和98.9%。系统发育分析表明,3个基因系统进化树分析结果基本一致,人腺病毒3型(HAdV3)原型株单独一支,本研究中HAdV3序列均划分在同一进化分支上,与较早年份国外及中国台湾毒株亲缘关系较远,与近年国内外毒株亲缘关系较近,与2019年日本株(LC703523)和中国广州株(MZ540961)高度同源。与原型株比较分析昆明HAdV3氨基酸突变位点,Penton base有5处变异;Hexon有10处变异;Fiber有11处变异。结论本起疫情中的腺病毒在Penton base、Hexon和Fiber基因全长序列中型别分型结果一致,为P3H3F3型,与包括原型株在内的国内外HAdV3毒株显示出非常小的遗传变异。与原型株相比发生了多处氨基酸位点突变,并且多数氨基酸位点变异发生在蛋白质的高变区或功能区,其中Hexon蛋白中M7L为昆明序列独有氨基酸突变位点。

关键词：人腺病毒3型五邻体基座蛋白六邻体蛋白纤维蛋白遗传进化

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基于两阶卷积神经网络训练有限心电数据的心脏骤停早期分类识别算法

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生物医学工程学杂志 2024年第4期41卷 692-699页

作者：茶兴增张月张翼飞苏叶赖大坤电子科技大学电子科学与工程学院成都610054 四川省医学科学院四川省人民医院心血管超声及心功能科成都610072

心脏骤停(SCA)是一种致命性心律失常,会对人体生命健康造成严重威胁。基于目前临床记录的心脏猝死(SCD)心电图(ECG)数据极其有限,本文提出了一种基于深度迁移学习的心脏骤停早期预估及分类算法。本文算法在有限的ECG数据训练下,通过提... 详细信息

心脏骤停(SCA)是一种致命性心律失常,会对人体生命健康造成严重威胁。基于目前临床记录的心脏猝死(SCD)心电图(ECG)数据极其有限,本文提出了一种基于深度迁移学习的心脏骤停早期预估及分类算法。本文算法在有限的ECG数据训练下,通过提取心脏骤停发作前的心率变异性特征,并送入轻量级卷积神经网络模型进行预训练和微调训练两个阶段的深度迁移学习,实现神经网络模型对心脏骤停高危ECG信号的早期分类识别和预估。基于国际公开ECG数据库中20个心脏猝死患者和18个窦性心律患者的16788条30 s心率特征片段,本文采用十折交叉量化验证的算法性能评估实验结果显示,对心脏骤停发作前30 min预测的平均准确度(Acc)、灵敏度(Sen)和特异度(Spe)分别为91.79%、87.00%和96.63%;而对不同患者的平均预估准确度达到96.58%。相较于已报道的传统机器学习算法,本文方法不仅有助于解决深度学习模型对大量训练数据的要求,而且能够更加早期、准确地检测和识别心脏骤停发作前的高危ECG征兆。

关键词：心脏骤停心电图心率特征快速反应系统深度迁移学习

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