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Limit Test and pH Determination of 5-Hydroxymethylfurfural in Jiulongteng Honey

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Medicinal Plant 2024年第3期15卷 23-25,29页

作者： Beiqiao YIN Yanyan CHEN Lili LIU Shenggao YIN Yanxia cen Shiman CHEN Baise People's Hospital Baise 533000China Wuzhou Vocational College Wuzhou 543003China Guangxi University of Chinese Medicine Nanning 530000China Beihai Public Inspection and Testing center Beihai 536000China

[Objectives]To explore the effect of storage time on pH and 5-hydroxymethylfurfural content in Jiulongteng honey.[Methods]The pH of Jiulongteng honey was determined by neutralization titration with sodium hydroxide standard *** content of 5-hydroxymethylfurfural in Jiulongteng honey was determined by *** conditions:ZORBAX SB-C 18 column(250 mm×4.6 mm,5μm)from Agilent Co.,Ltd.,acetonitrile-0.1%formic acid solution(5:95)as mobile phase,flow rate of 0.8 mL/min,5-hydroxymethylfurfural detection wavelength of 284 nm,guanosine detection wavelength of 254 nm.[Results]The pH of 12 batches of Jiulongteng honey was 3.70-3.84 in the new honey stage,3.92-4.05 in the old honey stage 1,and 4.25-4.53 in the old honey stage 2;5-hydroxymethylfurfural was not detected in the new honey stage,5-hydroxymethylfurfural was detected in FM-001 in the old honey stage 1,and 5-hydroxymethylfurfural was detected in most samples in the old honey stage 2.[Conclusions]The pH and 5-hydroxymethylfurfural content of 12 batches of Jiulongteng honey met the requirements within 3 years of *** was no 5-hydroxymethylfurfural in Jiulongteng honey,but with the extension of storage time,the detection amount of 5-hydroxymethylfurfural increased significantly even if Jiulongteng honey was stored at low ***,5-hydroxymethylfurfural can be used as an important indicator of honey freshness.

关键词： Jiulongteng honey 5-hydroxymethylfurfural pH HPLC

BambooBase:A comprehensive database of bamboo omics and systematics

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Molecular Plant 2024年第5期17卷 682-685页

作者： Yun-Long Liu Shu-Yang Gao Guihua Jin Meng-Yuan Zhou Qijuan Gao cen Guo Yi-Zhou Yang Liang-Zhong Niu Enhua Xia Zhen-Hua Guo Peng-Fei Ma De-Zhu Li Germplasm Bank of Wild Species&Yunnan Key Laboratory of Crop Wild Relatives Omics Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China Kunming College of Life Science University of Chinese Academy of SciencesKunmingYunnan 650201China State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural UniversityHefeiAnhui 230036China School of Computer and Artificial Intelligence Hefei Normal UniversityHefeiAnhui 230061China Key Laboratory for Plant Diversity and Biogeography in East Asia Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China

Dear Editor,Bamboos(Bambusoideae,Poaceae)are of significant economic and ecological importance,supporting billions of people and contributing to international trade(Wu et al.,2023).They play a crucial role in carbon fixation and support a multitude of other species including the giant panda(Clark et al.,2015).Since the release of the first draft genome of moso bamboo(Phyllostachys edulis)(Peng et al.,2013),there has been a notable increase in the sequencing,assembly,and annotation of diverse bamboo genomes(Guo et al.,2019;Zheng et al.,2022;Ma et al.,2024).An existing resource for bamboo genomics,BambooGDB(Zhao et al.,2014),provides information based on the individual draft reference genome of moso *** is needed,however,is a resource reinforcing multiple genome assemblies in Bambusoideae to enable researchers to unravel the evolutionary history of chromosomes and genes through cladespecific comparative genomic ***,we present BambooBase(https://***/),a newly developed web-based database designed to provide a seamless user experience for bamboo omics and systematics.

关键词： enable supporting Bamboo

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基于文本引导下的多模态医学图像分析算法

电子学报 2024年第7期52卷 2341-2355页

作者：樊琳龚勋郑岑洋西南交通大学计算机与人工智能学院四川成都611756 可持续城市交通智能化教育部工程研究中心四川成都611756 综合交通大数据应用技术国家工程实验室四川成都611756 四川省制造业产业链协同与信息化支撑技术重点实验室四川成都611756

结合胃镜超声和白光内镜可以更准确地识别胃肠道间质瘤.但是现有的多模态方法往往仅关注于图像特征,忽略了诊断文本信息中所包含的语义信息对于精确理解和诊断医学图像的重要性.为此,本文提出一种新的基于文本引导下的多模态医学图像分... 详细信息

结合胃镜超声和白光内镜可以更准确地识别胃肠道间质瘤.但是现有的多模态方法往往仅关注于图像特征,忽略了诊断文本信息中所包含的语义信息对于精确理解和诊断医学图像的重要性.为此,本文提出一种新的基于文本引导下的多模态医学图像分析算法框架(Text-guided Multi-modal Medical image analysis framework,TMM-Net).TMM-Net使用多阶段的诊断文本来引导模型学习,以提取图像中的关键诊断信息特征,然后通过交叉模态注意力机制促进多模态特征之间的交互.值得注意的是,TMM-Net通过预测病变属性来模拟临床诊断过程,从而增强了可解释性.验证实验在两个中心包含10 025个模态数据对的数据集上进行.结果表明,该方法相比目前最优的GISTs诊断方法精度提升7.7%,同时获得了最高的(Area Under the Curve,AUC)值:0.927,其可解释性可以更好地适合临床需求.

关键词：多模态融合模型可解释性图像-文本匹配胃肠道间质瘤胃镜超声白光内镜

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一种高效的平面点集凸包算法

海洋测绘 2024年第1期44卷 53-57页

作者：梁彪常岑江苏省测绘产品质量监督检验站江苏南京210018

为了提高凸包计算的效率,针对海岛正射点云的特点,提出了三级过滤措施,将平面点集抽稀至似边缘点集并排序,在此基础上改进了Graham算法,算法的时间复杂度为线性对数阶。通过对黄海开山岛等6个海岛点云进行计算,在普通、集中、扩散等3种... 详细信息

为了提高凸包计算的效率,针对海岛正射点云的特点,提出了三级过滤措施,将平面点集抽稀至似边缘点集并排序,在此基础上改进了Graham算法,算法的时间复杂度为线性对数阶。通过对黄海开山岛等6个海岛点云进行计算,在普通、集中、扩散等3种类型情况下与多个经典算法进行对比,结果表明该算法平均运行效率为Quickhull算法的1.68倍、Andrew算法的8.93倍、Graham算法的20.65倍。因此,该算法可以被作为海岛、海岸、独立建筑物等正射点云凸包计算的关键算法。

关键词：正射点云凸包计算平面点集极点似最大内圆

Noncanonical pyroptosis pathway: a promising target of traditional Chinese medicine in the treatment of sepsis-related injury

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Integrative Medicine Discovery 2024年第20期8卷 1-4页

作者： Yan-Yan cen Pan Wang Ting Zhu Ya-Lan Xiong Xi-Chun Pan Department of Pharmacology College of PharmacyArmy Medical UniversityChongqing 400038China.

Sepsis is a life-threatening disease of organ failure caused by dysregulated host responses to infection and other infectious ***-organ injury is the leading cause of high mortality and septic shock during *** studies suggest that noncanonical pyroptosis,characterized mainly by the direct activation of caspase-11-gasdermin D-mediated pyroptosis by cytoplastic lipopolysaccharide,is closely related to sepsis-related organ ***,this review summarizes recent advances in the regulatory mechanisms and targeted natural products from traditional Chinese medicine of the noncanonical pyroptosis pathway in sepsis-related injury.

关键词： sepsis-related injury noncanonical pyroptosis caspase-11 gasdermin D

适应性专长视角下乡村体育教师专业发展的内在逻辑与路径重构

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体育学刊 2024年第4期31卷 135-142页

作者：王德政岑艺璇东北师范大学体育学院吉林长春130022

基于适应性专长理论视角对乡村体育教师专业发展的内在逻辑进行分析,据此提出专业发展路径。研究认为,乡村体育教师应基于巩固程序性知识、理解概念性知识、学习迁移和发展元认知4个维度提升自身适应性专长水平,同时增强岗位吸引力、优... 详细信息

基于适应性专长理论视角对乡村体育教师专业发展的内在逻辑进行分析,据此提出专业发展路径。研究认为,乡村体育教师应基于巩固程序性知识、理解概念性知识、学习迁移和发展元认知4个维度提升自身适应性专长水平,同时增强岗位吸引力、优化职后培训过程;凸显教师专业地位,强化职业信念培养;发挥情境价值,探索课题制实践模式;提升个体反思水平,鼓励集体反思行为。

关键词：学校体育适应性专长乡村体育教师教师专业发展高质量发展

Leaf Morphology Genes SRL1 and RENL1 Co-Regulate Cellulose Synthesis and Affect Rice Drought Tolerance

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Rice science 2024年第1期31卷 103-117,I0020-I0022页

作者： LIU Dan ZHAO Huibo WANG Zi’an XU Jing LIU Yiting WANG Jiajia CHEN Minmin LIU Xiong ZHANG Zhihai cen Jiangsu ZHU Li HU Jiang REN Deyong GAO Zhenyu DONG Guojun ZHANG Qiang SHEN Lan LI Qing QIAN Qian HU Songping ZHANG Guangheng State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 310006China Research center of Plant Functional Genes and Tissue Culture Technology College of Bioscience and BioengineeringJiangxi Agricultural UniversityNanchang 330045China Qian Qian Academician Workstation National Nanfan Research Institute(Sanya)Chinese Academy of Agricultural SciencesSanya 572024China

The morphological development of rice(Oryza sativa L.)leaves is closely related to plant architecture,physiological activities,and ***,it is unclear whether there is a co-regulatory relationship between the morphological development of leaves and adaptation to drought *** this study,a drought-sensitive,roll-enhanced,and narrow-leaf mutant(renl1)was induced from a semi-rolled leaf mutant(srl1)by ethyl methane sulfonate(EMS),which was obtained from Nipponbare(NPB)through ***-based cloning and functional validation showed that RENL1 encodes a cellulose synthase,allelic to NRL1/*** RENL1 mutation resulted in reduced vascular bundles,vesicular cells,cellulose,and hemicellulose contents in cell walls,diminishing the water-holding capacity of *** addition,the root system of the renl1 mutant was poorly developed and its ability to scavenge reactive oxygen species(ROS)was decreased,leading to an increase in ROS after drought ***,genetic results showed that RENL1 and SRL1 synergistically regulated cell wall *** results revealed a theoretical basis for further elucidating the molecular regulation mechanism of cellulose on rice drought tolerance,and provided a new genetic resource for enhancing the synergistic regulation network of plant type and stress resistance,thereby realizing simultaneous improvement of multiple traits in rice.

关键词： cellulose cell wall drought tolerance leaf morphology rice

荷兰先前学习认定何以促进学习者的个性学习和职业发展

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中国高教研究 2024年第4期 64-70页

作者：岑建陈明昆金华职业技术学院浙江省现代职业教育研究中心浙江金华321007 浙江师范大学浙江金华321004

荷兰为了发现和利用更多潜在的社会劳动技能,并推进终身学习,建立了独具特色的双轨制先前学习认定体系,在教育领域和劳动力市场两个轨道识别、承认和认定学习者在非正规、非正式学习中获得的知识、技能和能力。通过建立质量保证体系、... 详细信息

荷兰为了发现和利用更多潜在的社会劳动技能,并推进终身学习,建立了独具特色的双轨制先前学习认定体系,在教育领域和劳动力市场两个轨道识别、承认和认定学习者在非正规、非正式学习中获得的知识、技能和能力。通过建立质量保证体系、实施多主体协同合作、确立国家资格框架居中联结、形成配套认定程序与方式等,先前学习认定将学习与工作紧密结合在一起,在职业院校、应用科学大学和行业企业广泛应用,促进了学习者的个性学习和职业发展。我国高等职业教育已经具备实施先前学习认定的法律依据和政策基础,在制度建设和办学实践上可以从荷兰的经验中获得借鉴和启示。

关键词：先前学习认定双轨制职业教育个性学习职业发展

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轴向柱塞泵流致噪声传递机理分析

液压与气动 2024年第6期48卷 133-141页

作者：崔凯郭志敏翟江徐楠洪昊岑潍柴液压传动有限公司山东潍坊261205 潍柴动力股份有限公司山东潍坊261205 浙江大学高端装备研究院浙江杭州310014

在高压工况下,轴向柱塞泵易产生较大的噪声,其主要成分为流体噪声。提出使用计算声学的方法,对轴向柱塞泵的流致噪声进行仿真模拟。首先,归纳了柱塞泵流体噪声的产生机理与传递路径。然后,构建了柱塞泵的声学仿真模型,对其进行数值模拟... 详细信息

在高压工况下,轴向柱塞泵易产生较大的噪声,其主要成分为流体噪声。提出使用计算声学的方法,对轴向柱塞泵的流致噪声进行仿真模拟。首先,归纳了柱塞泵流体噪声的产生机理与传递路径。然后,构建了柱塞泵的声学仿真模型,对其进行数值模拟。最后,分析了柱塞泵的噪声、振动仿真结果,并通过试验加以验证。结果表明:轴向柱塞泵的流体噪声从内向外逐步传递,并作为激励源,引发内部零件与泵体的振动,进而产生辐射噪声;仿真结果与试验结果误差小于6%,仿真的准确度较高。

关键词：轴向柱塞泵流体噪声计算声学仿真