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喀斯特退耕地不同植被恢复阶段土壤团聚体稳定性特征

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水土保持研究 2024年第2期31卷 33-42页

作者：董天富邓志豪杨静戴全厚聂云鹏贵州大学林学院贵阳550025 中国科学院环江喀斯特生态系统观测研究站广西环江547100 中国科学院亚热带农业生态研究所长沙410125

[目的]探究黔中喀斯特地区黄壤和石灰土发育区耕地退耕对土壤结构和稳定性的影响,为喀斯特区水土流失防治和退耕地恢复植被效益评价提供理论依据。[方法]基于干湿筛法,对耕地(YM)和退耕后不同植被恢复阶段草地(CD)、灌丛(GC)、林地(LD)... 详细信息

[目的]探究黔中喀斯特地区黄壤和石灰土发育区耕地退耕对土壤结构和稳定性的影响,为喀斯特区水土流失防治和退耕地恢复植被效益评价提供理论依据。[方法]基于干湿筛法,对耕地(YM)和退耕后不同植被恢复阶段草地(CD)、灌丛(GC)、林地(LD)浅层(0—30 cm)土壤团聚体组成和稳定性差异特征进行了研究。[结果]两种土壤类型发育区土壤机械团聚体含量随粒径减小而降低,水稳性团聚体含量随粒径减小先降低后上升,且土壤机械团聚体均以>1 mm为主,黄壤和石灰土占比分别为82.45%,84.01%;水稳性团聚体以>2 mm为主,占比分别为53.53%,54.61%。黄壤团聚体平均重量直径(MWD)、几何平均直径(GMD)随土层深度增加而降低,石灰土则相反;黄壤退耕地的团聚体稳定性相对于石灰土更好;两种土壤MWD,GMD总体上均为YM最低,土壤结构破坏率(PAD)最高,即YM土壤团聚体稳定性最低,不同退耕植被恢复阶段土壤团聚体稳定性相对于YM皆有所提高。黄壤土壤MWD与有机质含量(SOM)、全氮(TN)显著正相关,GMD与SOM显著正相关,PAD则是与粉粒显著正相关(p<0.05);石灰土MWD,GMD与砂粒、全钾(TK)显著正相关(p<0.05),和全磷(TP)极显著负相关,PAD与砂粒、TK极显著负相关,与TP极显著正相关(p<0.01),与黏粒显著正相关(p<0.05)。多因素方差分析结果表明:植被类型、土层深度和土壤类型均对土壤团聚体稳定性有显著(p<0.05)影响。[结论]在两种土壤发育区,退耕后不同植被恢复阶段土壤团聚体稳定性指标均高于耕地,可见退耕还林还草有效提高了土壤团聚体稳定性,增强了土壤抵抗侵蚀的能力,研究结果能为喀斯特区水土保持措施布设和退耕地效益评价提供理论依据。

关键词：喀斯特黄壤石灰土不同退耕植被团聚体稳定性

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阿伦狄克酸对脑缺血再灌注损伤食蟹猴模型的神经保护作用

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中国药理学与毒理学杂志 2024年第4期38卷 241-248页

作者：王向伟周永馨庄永杰陈继巧毛佳静周静邓志豪邢柳柳周业明付立杰布瑞迅药业(南通)有限公司江苏南通226133

目的评价阿伦狄克酸对食蟹猴脑缺血再灌注损伤(CIRI)的治疗作用。方法9只健康雄性食蟹猴,通过阻断左侧大脑中动脉4 h后再灌注建立CIRI模型。脑梗死72 h后,随机分为模型〔20%(W∶V)Solutol HS15和10%(V∶V)PEG400〕、模型+阿伦狄克酸钙10... 详细信息

目的评价阿伦狄克酸对食蟹猴脑缺血再灌注损伤(CIRI)的治疗作用。方法9只健康雄性食蟹猴,通过阻断左侧大脑中动脉4 h后再灌注建立CIRI模型。脑梗死72 h后,随机分为模型〔20%(W∶V)Solutol HS15和10%(V∶V)PEG400〕、模型+阿伦狄克酸钙10和30 mg·kg^(-1)组,每组3只,口服给药,每天2次,连续28 d。治疗期间,通过一系列神经行为学检查,如上肢采食技能测试和笼旁行为观察,及大脑梗死体积和脑水肿体积磁共振数据评估神经损伤和恢复。结果模型组食蟹猴在CIRI后表现出自然自发性恢复。与模型组相比,模型+阿伦狄克酸钙30 mg·kg^(-1)组行为学、上肢活动和脑病变体积明显恢复(P<0.05),模型+阿伦狄克酸钙10 mg·kg^(-1)组无明显改善。结论阿伦狄克酸可缩小CIRI食蟹猴模型脑梗死面积,改善神经行为活动和骨骼肌协调功能。

关键词：阿伦狄克酸脑缺血再灌注损伤神经行为学食蟹猴

Identification of the active ingredients from Guangtongxiao decoction in rat bile based on ultra-performance liquid chromatography/Synapt G2 quadrupole time-of-flight tandem mass spectrometry

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Journal of Traditional Chinese Medicine 2020年第6期40卷 999-1006页

作者： deng zhihao Yan Yan Zhao Baoming Wang Rui Wang Xiaofeng Chen Haoxuan Wen Binyu Dongzhimen Hospital Beijing University of Chinese MedicineBeijing 100700China Dongfang Hospital Beijing University of Chinese MedicineBeijing 100078China

OBJECTIVE:To identify the active ingredients and metabolites in rat bile after Guangtongxiao decoction(GTX)had been administered via the rectal ***:Drug-containing bile samples were collected via a catheter in the bile duct and could be used 5 h after rectal *** main active components and their metabolites in rat bile following rectal administration of GTX were identified and analyzed using ultra-high-performance liquid chromatography-quadrupole time-of-flight mass ***:Positive and negative modes were applied to analyze and identify the chemical ingredients in the bioactive fractions of *** peaks were identified by comparison with the standard compounds:berberine hydrochloride,dehydrocorydaline,tetrahydropalmatine,corydaline,magnoflorine,magnolol,obacunone and ***,60 metabolites were detected in rat bile based on mass-fragmentation behaviors,and 21 metabolites were reported for the first ***:Our findings provide a solid basis for further pharmacologic and pharmacokinetic studies of GTX.

关键词： Chromatography high performance liquid Flight mass spectrometry Bile Metabolites Guangtongxiao decoction

MACF1 deficiency suppresses tooth mineralization through IGF1 mediated crosstalk between odontoblasts and ameloblasts

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Genes & Diseases 2024年第5期11卷 9-12页

作者： Wuxia Qiu Xiao Lin Shaoqing Yang zhihao Chen Kewen Zhang Chaofei Yang Yu Li Zhiping Miao Xiaoni deng Xiaohong Duan Airong Qian Lab for Bone Metabolism Xi’an Key Laboratory of Special Medicine and Health EngineeringKey Lab for Space Biosciences and BiotechnologyResearch Center for Special Medicine and Health Systems EngineeringNPU-UAB Joint Laboratory for Bone MetabolismSchool of Life SciencesNorthwestern Polytechnical UniversityXi’anShaanxi 710072China State Key Laboratory of Military Stomatology National Clinical Research Center for Oral DiseasesDepartment of Oral BiologyClinic of Oral Rare and Genetic DiseasesSchool of StomatologyThe Fourth Military Medical UniversityXi’anShaanxi 710032China School of Chemical Engineering Sichuan University of Science&EngineeringZigongSichuan 643000China Research&Development Institute of Northwestern Polytechnical University in Shenzhen ShenzhenGuangdong 518063China Puyang Institute of Technology Henan UniversityPuyangHenan 457000China

Tooth mineralization is a ubiquitous and tightly regulated process involving complicated interactions between dental epithelium and *** molecules in tooth mineralization remain poorly *** actin cross-linking factor 1(MACF1)is a spectraplakin protein that plays pivotal roles in the brain,muscle,lung,and bone developmental process.1e3 To study the specific functions of MACF1 in bone formation,we established Macf1 conditional knockout mice using the Cre-LoxP system driven by Osxterix promoter(Osx-Cre;Macf1f/f).2 Not surprisingly,Osx-Cre;Macf1f/f mice displayed the phenotypes of delayed ossification and decreased bone ***,the OsxCre;Macf1f/f mice unexpectedly showed a white and opaque appearance of incisors,contrary to the normal yellowbrown and transparent *** Osxterix is expressed in dental mesenchyme during tooth development,the abnormal tooth appearance might imply a new function of MACF1 in odontoblasts,or even ***,the present study aimed to investigate the role of MACF1 during tooth development.

关键词： mineralization linking transparent

高职电梯专业课程思政教学研究与实践——以“电梯安全及法规”课程为例

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中国电梯 2024年第7期35卷 41-44页

作者：邓勇陈志豪汕头职业技术学院

以“电梯安全及法规”课程为例，探索“五个一”和“二条线”相结合的教学模式，开展课程思政教学研究与实践。“五个一”即一堂课、一项调研、一个案例、一次演练、一场分享，旨在实现教、学、做、评一体化的课堂教学，让学生在“做中... 详细信息

以“电梯安全及法规”课程为例，探索“五个一”和“二条线”相结合的教学模式，开展课程思政教学研究与实践。“五个一”即一堂课、一项调研、一个案例、一次演练、一场分享，旨在实现教、学、做、评一体化的课堂教学，让学生在“做中学”“学会用”，充分调动学生的主动性和积极性，为同类课程的课堂教学提供参考。“二条线”是从安全和规范两条思政主线入手，融入思政元素，培养学生“备豫不虞，为国常道”的安全观和一丝不苟、精益求精的工匠精神，为电梯行业培养具有思政意识和专业技能的高素质人才。

关键词：高职院校电梯专业课程思政教学研究与实践 “五个一” “二条线”

A stretchable and adhesive ionic conductor based on polyacrylic acid and deep eutectic solvents

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npj Flexible Electronics 2021年第1期5卷 175-182页

作者： Gang Li zhihao deng Minkun Cai Kaixi Huang Mengxue Guo Ping Zhang Xingyu Hou Yuan Zhang Yueji Wang Yan Wang Xiang Wu Chuan Fei Guo Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhenChina Department of Mechanics and Aerospace Engineering Southern University of Science and TechnologyShenzhenChina School of Materials Science and Engineering Shenyang University of TechnologyShenyangLiaoningChina Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices Southern University of Science and TechnologyShenzhenGuangdongChina

Hydrogels are a widely used ionic conductor in on-skin electronic and iontronic ***,hydrogels dehydrate in the open air and freeze at low temperatures,limiting their real applications when they are attached on skin or exposed to low ***-ionic liquid gels can overcome these two obstacles,but synthetic ionic liquids are expensive and *** this work,we present an ionic conductor based on polyacrylic acid(PAAc)and deep eutectic solvents(DESs)that well addresses the aforementioned *** polymerize acrylic acid in DESs to get the PAAc–DES gel,which exhibits excellent stretchability(>1000%),high electrical conductivity(1.26 mS cm^(−1)),high adhesion to the skin(~100 Nm^(−1)),as well as good anti-drying and anti-freezing *** also demonstrate that the PAAc-DES gel can be used as an on-skin electrode to record the surface electromyographic signal with high signal quality,or as a transparent stretchable electrode in iontronic devices that can work at–20℃.We believe that the PAAc–DES gels are an ideal candidate as epidermal electrodes or transparent stretchable electrodes.

关键词： properties ionic conductor

Preparation and Application of Natural Bactericidal Deodorizer

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China Detergent & Cosmetics 2024年第2期9卷 38-42页

作者： Lin Jiahong Tao Hongbing Xu Jian deng Xiaofeng Gan zhihao Liu Yonglong Chen Mingjie Li Liangqiu Guangdong Dimei New Materials Technology Co. Ltd.China Guangdong Dimei Biological Technology Co. Ltd.China Institute of Microbiology Guangdong Academy of SciencesChina

Jasmine essential oil and lemon essential oil were selected for deodorizing *** and silver ions were selected as auxiliary raw *** product was prepared by emulsion dissolution *** minimum inhibitory concentration of various bacteria were during 100~2,000 mg/*** the test,the germicidal efficiency of 2.0%(w/w)deodorant was 99%.The removal efficiency of trimethylamine and methanthiol were more than 95%by 3.0%(w/w).*** removal efficiency of ammonia and methanthiol were more than 92%by 3.0%(w/w)*** addition,The removal efficiency of isovaleric acid was 98%by 2.0%(w/w)*** analysis result,common pathogenic bacteria were effectively suppressed,kitchen and toilet odors were efficiently removed by natural plant deodorant.

关键词： plant extracts amino acid bactericide deodorizer

以仿生理念为设计导向的星钻积木产品设计研究

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艺术科技 2022年第4期35卷 170-173页

作者：向菲邓志豪湖北工业大学湖北武汉430068

在大数据信息化时代背景下,国内各行业如雨后春笋一般迅速发展,导致弱势产品在市场上的发展受到极大限制。为提升星钻积木产品在市场中的竞争力,满足儿童对益智类玩具的消费需求,文章分析星钻积木产品的现状与不足,提出以仿生理念为设... 详细信息

在大数据信息化时代背景下,国内各行业如雨后春笋一般迅速发展,导致弱势产品在市场上的发展受到极大限制。为提升星钻积木产品在市场中的竞争力,满足儿童对益智类玩具的消费需求,文章分析星钻积木产品的现状与不足,提出以仿生理念为设计导向,探索该理念在星钻积木产品形象设计中的运用,从而提高该品牌的市场竞争力,对儿童的身心发展产生积极影响。

关键词：仿生设计星钻积木产品设计

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GIS辅助下的学生就业分析研究

计算机时代 2022年第5期 141-144页

作者：陈洁心邓志豪南京森林警察学院治安系江苏南京210223

以南京某高校应届毕业生实际就业情况为第一手地理原始数据,进行地理空间化数据处理、筛选、剔除、整理,利用GIS技术进行地理空间信息分析研究,将传统的就业报表建立成为可以实时进行直观表达的地理就业空间分布图,并对高校毕业生的实... 详细信息

以南京某高校应届毕业生实际就业情况为第一手地理原始数据,进行地理空间化数据处理、筛选、剔除、整理,利用GIS技术进行地理空间信息分析研究,将传统的就业报表建立成为可以实时进行直观表达的地理就业空间分布图,并对高校毕业生的实际就业地理空间信息分布和人才流向情况进行宏观分析。

关键词：大学生就业 GIS 空间分析就业分布