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益生菌对犬肠道健康的影响研究进展

中国畜牧杂志 2024年第6期60卷 44-48页

作者：杨敏敏吴孝杰巨玉鑫魏占虎张洁慧郭志明甘肃畜牧工程职业技术学院宠物科技学院甘肃武威733000

动物肠道内存在着复杂的微生物群落,其参与动物机体内营养物质的消化吸收、新陈代谢以及免疫等多方面的生理过程,影响动物健康状况。了解动物机体的消化道生理特点,为动物提供安全且营养全面的饲粮是保障其健康生长的重要措施。益生菌... 详细信息

动物肠道内存在着复杂的微生物群落,其参与动物机体内营养物质的消化吸收、新陈代谢以及免疫等多方面的生理过程,影响动物健康状况。了解动物机体的消化道生理特点,为动物提供安全且营养全面的饲粮是保障其健康生长的重要措施。益生菌制剂作为功能性添加剂,可以通过调节肠道微生物群落结构以及相关代谢产物发挥有益作用。本文概述了犬的消化道生理、益生菌的作用机制以及犬用益生菌的有益功能,为益生菌在调控动物机体的肠道健康方面提供一定的参考依据。

关键词：益生菌犬肠道菌群肠道健康

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进气道滚流比对发动机压升率及噪声的影响

内燃机与动力装置 2024年第3期41卷 51-56页

作者：赵磊纪雷赵铮关昊杨敏敏李东辉长城汽车股份有限公司河北保定071000 河北省车用发动机技术创新中心河北保定071000

以某双喷射6缸发动机为研究对象,设计高滚流比和低滚流比2种进气道,通过三维计算流体动力学软件AVL Fire对缸内流场进行仿真,分析发动机燃烧特性,并进行台架燃烧测试和噪声测试。仿真结果表明:在转速为2800 r/min、平均有效压力为1.3 MP... 详细信息

以某双喷射6缸发动机为研究对象,设计高滚流比和低滚流比2种进气道,通过三维计算流体动力学软件AVL Fire对缸内流场进行仿真,分析发动机燃烧特性,并进行台架燃烧测试和噪声测试。仿真结果表明:在转速为2800 r/min、平均有效压力为1.3 MPa工况下,相比高滚流进气道方案,低滚流气道方案的缸内第一、二个峰值滚流比分别降低了43.3%、34.9%,最大缸内平均压力降低544 kPa,最大压力升高率降低16.84%。台架试验结果表明:2种进气道的燃烧持续期相差不大,相比高滚流进气道方案,低滚流方案以曲轴转角表示的燃烧重心推迟了2.02°,燃油消耗率增大0.67%,压力升高率(压升率)降低了19.87%,发动机在频率为700~1300 Hz时的噪声约降低6.0 dB,噪声改善效果明显。

关键词：进气道滚流比仿真分析压升率噪声

^(18)F-FDG PET-CT联合血清SCC-Ag、CYFRA21-1对宫颈鳞癌腹膜后淋巴结转移的诊断价值研究

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右江民族医学院学报 2024年第3期46卷 371-374,404页

作者：郏振功徐玥申勇杨敏敏胡永全蚌埠医科大学第一附属医院核医学科安徽蚌埠233000 蚌埠医科大学第一附属医院临床教学科安徽蚌埠233000

目的探讨^(18)F-FDG PET-CT联合血清SCC-Ag和CYFRA21-1对宫颈鳞癌腹膜后淋巴结转移的诊断价值。方法根据术后病理学检查结果,将100例宫颈鳞癌女性患者划分为转移组(合并腹膜后淋巴结转移,33例)和非转移组(未合并腹膜后淋巴结转移,67例)... 详细信息

目的探讨^(18)F-FDG PET-CT联合血清SCC-Ag和CYFRA21-1对宫颈鳞癌腹膜后淋巴结转移的诊断价值。方法根据术后病理学检查结果,将100例宫颈鳞癌女性患者划分为转移组(合并腹膜后淋巴结转移,33例)和非转移组(未合并腹膜后淋巴结转移,67例)。收集患者术前的^(18)F-FDG PET-CT扫描数据以及血清SCC-Ag和CYFRA21-1含量检查结果,比较两组各指标差异。通过Logistic二元多因素回归分析,分析影响宫颈鳞癌发生腹膜后淋巴结转移的独立因素,对有意义的变量进行ROC曲线分析。结果转移组血清SCC-Ag、CYFRA21-1含量以及SUVmax值均高于未转移组,组间数据差异具有统计学意义(P<0.05)。SCC-Ag、CYFRA21-1含量以及SUVmax值均被确认为宫颈鳞癌发生腹膜后淋巴结转移的独立影响因素。ROC曲线分析显示,SCC-Ag、CYFRA21-1、SUVmax单独及联合预测因子在宫颈鳞癌腹膜后淋巴结转移中的AUC分别为0.769、0.813、0.811、0.891,均具有统计学意义(P<0.05)。结论^(18)F-FDG PET-CT联合血清SCC-Ag和CYFRA21-1在宫颈鳞癌腹膜后淋巴结转移的诊断中具有显著的临床价值。

关键词：宫颈肿瘤腹膜后淋巴结转移正电子发射断层显像计算机体层摄影术

糖尿病足的舌象相关高危因素分析及临床预测模型构建

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江苏中医药 2024年第3期56卷 33-37页

作者：刘宁王东军孙璇杨敏敏胡晓凯田之魁南京中医药大学附属医院江苏南京210029 华北理工大学中医学院河北唐山063200 天津中医药大学公共卫生与健康科学学院天津301600 齐鲁医药学院康复医学院山东淄博255300

目的:通过对糖尿病患者的横断面调查研究,探索糖尿病足舌象相关的危险因素,并建立临床适用的列线图,为糖尿病足的中西医临床诊疗提供参考。方法:收集2型糖尿病患者,根据是否并发糖尿病足分为单纯2型糖尿病组和糖尿病足组,最终纳入研究... 详细信息

目的:通过对糖尿病患者的横断面调查研究,探索糖尿病足舌象相关的危险因素,并建立临床适用的列线图,为糖尿病足的中西医临床诊疗提供参考。方法:收集2型糖尿病患者,根据是否并发糖尿病足分为单纯2型糖尿病组和糖尿病足组,最终纳入研究的单纯2型糖尿病组有1416例,糖尿病足组有600例。采集2组患者性别、年龄、体质量指数(BMI)、糖尿病病程、吸烟史等基本信息,舌色、舌形、苔色、苔质等舌象特征信息,并做组间统计学比较。利用横断面研究方法,以糖尿病足为因变量,以患者基本信息、血糖水平、舌色、舌形、苔色、苔质等25个候选预测变量为自变量,应用LASSO回归筛选变量,Logistic回归建模,建立并验证糖尿病足舌象临床预测模型。结果:经卡方检验,2组患者性别、年龄、BMI、糖尿病病程、吸烟史分布比较差异均有统计学意义(P<0.05),瘀斑舌、淡红舌、淡白舌、淡紫舌、老舌、瘦舌、点刺舌、齿痕舌、歪斜舌、白苔、黄苔、薄苔、剥苔、厚苔分布差异有统计学意义(P<0.05)。经LASSO回归分析,于上述19个变量中筛选出年龄、糖尿病病程、吸烟史、淡红舌、老舌、瘦舌、歪斜舌、薄苔、白苔、黄苔、剥苔和厚苔12个预测糖尿病足的预测因子,进一步纳入多因素Logistic回归模型,结果表明年龄、糖尿病病程、吸烟史、老舌、瘦舌、歪斜舌、白苔、黄苔、厚苔、薄苔是糖尿病足的风险预测因子,基于这10个有效预测因子构建了糖尿病足患者的风险评估列线图。应用ROC曲线分析在训练集和测试集中预测糖尿病足风险的能力,结果训练集曲线下面积为0.9069,测试集曲线下面积为0.8994。结论:经过LASSO回归和Logistic回归筛选变量并建模后分析可知,糖尿病患者患糖尿病足的危险因素为年龄、糖尿病病程、吸烟史、老舌、瘦舌、歪斜舌、白苔、黄苔、厚苔、薄苔。建立的列线图为在2型糖尿病患者中预警糖尿病足提供了新工具,便于医生或患者采取积极干预方式来改善预后,从而获得更好的治疗结果,同时为舌象预警体系的建立奠定基础,利于中医治未病之既病防变理论推广和应用。

关键词： 2型糖尿病糖尿病足危险因素舌象逻辑回归列线图

Synergistic Interdecadal Evolution of Precipitation over Eastern China and the Pacific Decadal Oscillation during 1951-2015

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Advances in Atmospheric Sciences 2024年第1期41卷 53-72页

作者： minmin WU Rong-Hua ZHANG Junya HU Hai ZHI Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of SciencesQingdao 266071China School of Marine Sciences Nanjing University of Information Science and TechnologyNanjing 210044China Laosan Laboratory Qingdao 266237China School of Atmospheric Sciences Nanjing University of Information Science and TechnologyNanjing 210044China University of Chinese Academy of Sciences Beijing 100029China

By using the multi-taper method(MTM)of singular value decomposition(SVD),this study investigates the interdecadal evolution(10-to 30-year cycle)of precipitation over eastern China from 1951 to 2015 and its relationship with the North Pacific sea surface temperature(SST).Two significant interdecadal signals,one with an 11-year cycle and the other with a 23-year cycle,are identified in both the precipitation and SST *** show that the North Pacific SST forcing modulates the precipitation distribution over China through the effects of the Pacific Decadal Oscillation(PDO)-related anomalous Aleutian low on the western Pacific subtropical high(WPSH)and Mongolia high(MH).During the development stage of the PDO cold phase associated with the 11-year cycle,a weakened WPSH and MH increased the precipitation over the yangtze River Basin,whereas an intensified WPSH and MH caused the enhanced rain band to move northward to North China during the decay *** the development stage of the PDO cold phase associated with the 23-year cycle,a weakened WPSH and MH increased the precipitation over North China,whereas an intensified WPSH and the weakened MH increased the precipitation over South China during the decay *** 11-year and 23-year variabilities contribute differently to the precipitation variations in the different regions of China,as seen in the 1998flooding *** 11-year cycle mainly accounts for precipitation increases over the yangtze River Basin,while the 23-year cycle is responsible for the precipitation increase over Northeast *** results have important implications for understanding how the PDO modulates the precipitation distribution over China,helping to improve interdecadal climate prediction.

关键词： MTM-SVD PDO SST anomalies interdecadal variability precipitation over China

Heterobimetallic[NiCo]integration in a hydrogenase mimic for boosting light-driven hydrogen evolution in CaTiO_(3)

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Nano Research 2024年第8期17卷 6888-6894页

作者： Kang Li Juanji Hong Ningning Song Zhanjun Guo minmin Liang Experimental Center of Advanced Materials School of Materials Science&EngineeringBeijing Institute of TechnologyBeijing 10081China

Light-drive hydrogen production using titanium-based perovskite is one sustainable way to reduce current reliance on fossil fuels,but its wide applications are still limited by high electron−hole recombination and sluggish surface ***,the developments for low-cost and highly efficient co-catalysts remain *** by natural[NiFe]-hydrogenase active center structure,a hydrogenase-mimic,NiCo_(2)S_(4)nanozyme was synthesized,and subsequently decorated onto the CaTiO_(3)to catalyze the hydrogen evolution reaction(HER).Among the following test,CaTiO_(3)with a 15%loading of NiCo_(2)S_(4)nanozyme exhibited the highest HER rate of 307.76μmol·g^(–1)·h^(–1),which is 60 times higher than that of the CaTiO_(3)*** results reveal that NiCo_(2)S_(4)not only significantly increased the charge separation efficiency of the photogenerated carriers,but also substantively lowered the HER activation *** studies show that NiCo_(2)S_(4)readily splits H_(2)O by forming the Ni(OH)-Co intermediate and only Ni in the bimetallic center alters the oxidation state during the HER process in a manner analogous to the[NiFe]-*** contrast to the often-expensive synthetic catalysts that rely on rare elements such as ruthenium and platinum,this study shows a promising way to develop the nature-inspired cocatalysts to enhance the photocatalysts’HER performance.

关键词： hydrogen evolution reaction hydrogenase-mimic nanozyme photocatalyst water-splitting

国际华侨华人研究的热词与前沿——基于Web of Science文献计量与细读

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世界民族 2022年第1期 116-126页

作者：杨敏敏华侨大学外国语学院泉州362021

为探索以“华侨华人”为主题词的国际学术研究脉络,借助文献计量可视化软件CiteSpace,对收录在Web of Science核心数据库(2010—2019)十年内的学术语篇进行定量文本挖掘与定性文本细读。结果表明:多学科跨学科的华侨华人研究得到全球性... 详细信息

为探索以“华侨华人”为主题词的国际学术研究脉络,借助文献计量可视化软件CiteSpace,对收录在Web of Science核心数据库(2010—2019)十年内的学术语篇进行定量文本挖掘与定性文本细读。结果表明:多学科跨学科的华侨华人研究得到全球性的关注和支持;“全球化”“身份”“态度”“高等教育”“学生”“人才”等成为研究热词;全景式的“中国人才流动”与“理解非洲叙事”这两个主题领衔研究前沿;华侨华人身心健康得到高度关注;国内学者在发文数量和前沿观点上把握了国际学术话语权,而高被引作者的相对缺失则说明话语能力与影响力还可望进一步提升。希望该研究能为华侨华人学术研究与实际工作提供有益的参考。

关键词：华侨华人中国人才非洲叙事身心健康国际学术话语权

Ca^(2+)-independent ZmCPK2 is inhibited by Ca^(2+)-dependent ZmCPK17 during drought response in maize

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Journal of Integrative Plant Biology 2024年第7期66卷 1313-1333页

作者： Xiaoying Hu Jinkui Cheng minmin Lu Tingting Fang Yujuan Zhu Zhen Li Xiqing Wang Yu Wang Yan Guo Shuhua yang Zhizhong Gong State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design BreedingCenter for Crop Functional Genomics and Molecular BreedingCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China College of Life Sciences Institute of Life Science and Green DevelopmentHebei UniversityBaoding 071002China

Calcium oscillations are induced by different ***-dependent protein kinases(CDPKs/CPKs)are one major group of the plant calcium decoders that are involved in various processes including drought *** CPKs are ***,we identified ZmCPK2 as a negative regulator of drought resistance by screening an overexpression transgenic maize *** found that ZmCPK2 does not bind calcium,and its activity is mainly inhibited during short term abscisic acid(ABA)treatment,and dynamically changed in prolonged ***,ZmCPK2 interacts with and is inhibited by calcium-dependent ZmCPK17,a positive regulator of drought resistance,which is activated by ***17 could prevent the nuclear localization of ZmCPK2 through phosphorylation of ***2 interacts with and phosphorylates and activates ZmYAB15,a negative transcriptional factor for drought *** results suggest that drought stress-induced Ca^(2+)can be decoded directly by ZmCPK17 that inhibits ZmCPK2,thereby promoting plant adaptation to water deficit.

关键词： CDPK drought response phosphorylation stomatal movement transcriptional regulation

Identification of different degrees of processed ginger using GC-IMS combined with machine learning

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Journal of Pharmaceutical Analysis 2024年第1期14卷 149-151页

作者： Shuang Liu Hongjing Dong minmin Zhang Wei Geng Xiao Wang Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province Shandong Analysis and Test CenterQilu University of Technology(Shandong Academy of Sciences)Jinan250014China Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province School of Pharmaceutical SciencesQilu University of Technology(Shandong Academy of Sciences)Jinan250014China Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University Jinan250014China

Ginger,the rhizomes of Zingiber officinale Roscoe,was a wellknown edible plant species commonly used in China,which has pungent flavor[1].Ginger has numerous chemical compounds,such as phenolic constituents,volatile compounds(VOCs),and polysaccharides[2].Among them,VOCs are considered one of the effective compounds in ginger due to their functional properties,including anti-inflammatory,antioxidant,and analgesic[3].

关键词： phenolic edible rhizome