检索结果-南通市图书馆

Degradation of Herbicides Atrazine and Bentazone Applied Alone and in Combination in Soils

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2008年第2期18卷 265-272页

作者： LI Ke-Bin CHENG Jing-Tao WANG Xiao-fang zhou ying LIU Wei-Ping Department of Chemistry Northwest University Xi＇an 710069 （China） Department of Chemistry Shaanxi Institute of Education Xi＇an 710061 （China） Chemical Engineering and Materials Science Zhejiang University of Technology Hangzhou 310032 （China） Research Center of Green Chirality College of Biological and Environmental Engineering Zhejiang University of Technology Hangzhou 310032 （China）

The application of a mixture of bentazone(3-isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one-2,2-dioxide)and atrazine (6-chloro-N2-ethyl-N4-isopropyl-1,3,5-triazine-2,4-diamine)is a practical approach to enhance the herbicidal ***- ratory incubation experiments were performed to study the degradation of bentazone and atrazine applied in combination and individually in maize rhizosphere and non-rhizosphere *** a lag phase,the degradation of each individual herbicide in the non-autoclaved soil could be adequately described using a first-order kinetic *** a 30-d in- cubation,in the autoclaved rhizosphere soil,bentazone and atrazine did not noticeably degrade,but in the non-autoclaved soil,they rapidly degraded in both non-rhizosphere and rhizosphere soils with half-lives of 19.9 and 20.2 d for bentazone and 29.1 and 25.7 d for atrazine,*** rhizosphere effect significantly enhanced the degradation of atrazine, but had no significant effect on *** results indicated that biological degradation accounted for the degrada- tion of both herbicides in the *** compared with the degradation of the herbicide applied alone,the degradation rates of the herbicides applied in combination in the soils were lower and the lag phase *** the addition of a surfactant,Tween-20,a reduced lag phase of degradation was observed for both herbicides applied in combination. The degradation rate of bentazone accelerated,whereas that of atrazine remained nearly ***,when these two herbicides were used simultaneously,their persistence in the soil was generally prolonged,and the environmental contamination potential increased.

关键词： atrazine bentazone degradation herbicide combination

中国老年人午睡时长和夜间睡眠与抑郁症状的关联:基于2020年CHARLS数据的实证分析

在线全文

学校读者我要写书评

暂无评论

中国全科医学 2025年第5期28卷 560-567页

作者：周梅杨爱琼邢英王玉玲新疆医科大学第一附属医院干部保健中心新疆维吾尔自治区乌鲁木齐市830054

背景随着我国进入中度老龄化社会,老年人心理健康问题逐年增加,而生活习惯与老年人的心理健康密切相关。目的探讨我国老年人午睡时长、夜间睡眠与抑郁症状的关系,基于生活习惯角度推荐睡眠时间,为老年人抑郁早期防控提供科学依据。方法... 详细信息

背景随着我国进入中度老龄化社会,老年人心理健康问题逐年增加,而生活习惯与老年人的心理健康密切相关。目的探讨我国老年人午睡时长、夜间睡眠与抑郁症状的关系,基于生活习惯角度推荐睡眠时间,为老年人抑郁早期防控提供科学依据。方法基于2023-11-16公开发布第五轮(2020年)中国健康与养老追踪调查项目(CHARLS),纳入符合研究标准的8233名为研究对象。采用抑郁评定量表(CSE-D10)评估老年人抑郁症状,午睡时长划分5级:不午睡、<30 min、30~59 min、60~89 min、≥90 min,夜间睡眠分为5级:≥8 h、7~<8 h、6~<7 h、5~<6 h、<5 h。采用多因素Logistic回归分析探究影响老年人发生抑郁症状的因素,随机森林模型分析午睡时长、夜间睡眠在老年人发生抑郁症状中的重要程度,限制性立方样条曲线进一步探索午睡时长、夜间睡眠时长与抑郁症状发生风险之间的剂量-反应关系。结果2020年调查期间,中国老年人抑郁症状的发生率为24.84%(2045/8233)。多因素Logistic回归分析结果显示,午睡时长30~59 min是老年人发生抑郁症状的保护因素(OR=0.814,95%CI=0.673~0.985,P=0.034),夜间睡眠时间<5 h是老年人发生抑郁症状的危险因素(OR=1.705,95%CI=1.435~2.027,P<0.001)。女性、未婚/分居/离异/丧偶、失能、身体疼痛、强度体力活动、自评健康状况下降、生活满意度下降、卒中、帕金森病会增加老年人发生抑郁症状的风险(P<0.05)。随机森林模型显示,午睡时长、夜间睡眠时间对抑郁症状影响的重要性较高。午睡时长与发生抑郁症状之间存在非线性关系(P_(nonlinear)<0.05),老年人发生抑郁症的风险在午睡时长30 min后随着时间的增加而持续降低,最低水平约为50 min,午睡时长超过75 min后抑郁症状的发生风险会增加。老年人患抑郁症状的发生风险在夜间睡眠6 h后随着时间的增加而持续降低,最低水平约为7 h,睡眠时间超过9 h后抑郁的风险会增加(Poverall<0.05)。结论中国老年人群抑郁症的患病率较高(24.84%),午睡时长、夜间睡眠的持续时间与抑郁症之间呈J型关系,建议老年人每天午睡30~75 min,适度的午睡时长有效降低老年人发生抑郁症状的风险,同时夜间睡眠6~9 h降低抑郁症状的发生风险,对老年人群抑郁症的早期防控具有一定的意义。

关键词：抑郁老年人午睡时长夜间睡眠中国健康与养老追踪调查项目

Halloween genes AhCYP307A2 and AhCYP314A1 modulate last instar larva–pupa–adult transition, ovarian development and oogenesis in Agasicles hygrophila (Coleoptera:Chrysomelidae)

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2023年第3期22卷 812-824页

作者： JIN Ji-su LIU Yi-ran zhou Zhong-shi WAN fang-hao GUO Jian-ying State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China Agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural SciencesShenzhen 518120P.R.China

In insects,ecdysteroids are synthesized by genes of the Halloween family and play important roles in several key developmental events,including molting and ***,the roles of these genes in Agasicles hygrophila are still largely *** this study,the expression patterns of the two Halloween genes AhCYP307A2 and AhCYP314A1 were determined by quantitative PCR(qPCR)at different developmental ***,the functions of these two genes were explored using RNA interference(RNAi),and ovarian development was observed by dissecting the ovaries of *** *** qPCR results showed that AhCYP307A2 and AhCYP314A1 were highly expressed in last instar larvae and in adult *** addition,AhCYP307A2 was also highly expressed in eggs and pupae but was markedly lower than in third-instar larvae and *** RNAi results showed that the injection of dsAhCYP307A2 or dsAhCYP314A1 markedly inhibited their expression and the transcription levels of three related *** of AhCYP307A2 or AhCYP314A1 significantly inhibited larval molting,impaired last instar larva–pupa–adult transition,delayed ovarian development,and stopped egg production(i.e.,no eggs were laid).These results indicate that AhCYP307A2 and AhCYP314A1 play important regulatory roles in last instar larva–pupa–adult transition and reproduction in ***.

关键词： Agasicles hygrophila ovary oogenesis AhCYP307A2 AhCYP314A1 RNA interference

Investigation on the Photodissociation of Oxygen from Oxymyoglobin by Fluorescence Spectroscopy

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2011年第6期27卷 1060-1064页

作者： zhou Hua-wei CAO Hong-yu TANG Qian MA Jun-yan ZHANG ying-ying ZHENG Xue-fang College of Bioengineering Dalian University Dalian 116622 P. R. China Liaoning Key Lab of Bio-organic Chemistry Dalian University Dalian 116622 P. R. China

Photodissociation of oxygen from oxymyoglobin（oxyMb） was investigated by means of fluorescence spectroscopy. One of the most important findings of the photodissociation of oxyMb was the discovery of two processes which were affected by excitation intensity, temperature, solvent viscosity, and excitation wavelength. Process I（PI） corresponded to oxygen escaping from the binding site at ferrous heme iron atom within the porphyrin ring into the heme pocket, whereas process II（PII） was ascribed to oxygen escaping from the heme pocket into the solvent. To elucidate this interesting phenomenon, we proposed a model that oxygen encountered two barriers on its way from the binding site at the ferrous heme iron to the solvent. Reversibility and wavelength sensitivity of the photodissociation were also observed.

关键词： Oxymyoglobin Photodissociation Escaping pathway Barrier Fluorescence spectroscopy

Recent developments in multifunctional neural probes for simultaneous neural recording and modulation

在线全文

学校读者我要写书评

暂无评论

Microsystems & Nanoengineering 2023年第1期9卷 23-35页

作者： Hongbian Li Jinfen Wang ying fang CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190China CAS Center for Excellence in Brain Science and Intelligence Technology Institute of NeuroscienceChinese Academy of SciencesShanghai200031China

Neural probes are among the most widely applied tools for studying neural circuit functions and treating neurological *** the complexity of the nervous system,it is highly desirable to monitor and modulate neural activities simultaneously at the cellular *** this review,we provide an overview of recent developments in multifunctional neural probes that allow simultaneous neural activity recording and modulation through different modalities,including chemical,electrical,and optical *** will focus on the material and structural design of multifunctional neural probes and their interfaces with neural ***,future challenges and prospects of multifunctional neural probes will be discussed.

关键词： neural recording simultaneous

Extrapontine myelinolysis caused by rapid correction of pituitrin-induced severe hyponatremia: A case report

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2020年第5期8卷 946-953页

作者： Liang-Jie fang Ming-Wei Xu Jian-ying zhou Zhi-Jie Pan Department of Respiratory Medicine First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou 310009Zhejiang ProvinceChina Department of Neurology First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou 310009Zhejiang ProvinceChina

BACKGROUND Severe hyponatremia is considered a rare complication of pituitrin,which is widely used for the treatment of pulmonary ***,the management of pituitrin-associated hyponatremia can be challenging because a rapid correction of hyponatremia may cause the development of osmotic demyelination syndrome,resulting in life-threatening neurological *** SUMMARY A 20-year-old Chinese man with massive hemoptysis developed symptomatic hyponatremia(116 mmol/L)after therapy by a continuous intravenous drip of *** normalize his serum sodium,a hypertonic saline infusion was applied for 3 d,and the pituitrin administration was stopped ***,an overly rapid increase in serum sodium level(18 mmol/L in 24 h)was detected after *** day later,the patient experienced a sudden onset of generalized tonic-clonic seizures,as well as subsequent dysarthria and *** resonance imaging revealed increased signal intensity in the bilateral symmetric basal ganglia on the T2-weighted images,compatible with a diagnosis of extrapontine *** patient received an intravenous administration of high-dose corticosteroids,rehabilitation,and neurotrophic ***,his clinical abnormalities were vastly improved,and he was discharged with few residual *** Physicians should be fully aware that pituitrin can cause profound hyponatremia and its correction must be performed at a controlled rate to prevent the development of osmotic demyelination syndrome.

关键词： Pituitrin Hyponatremia Extrapontine myelinolysis Case report

Insight into the relationship between microorganism communities and flavor quality of Chinese dry-cured boneless ham with different quality grades

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Bioscience 2022年第6期50卷 1890-1901页

作者： Zimu Li ying Wang Daodong Pan fang Geng Changyu zhou Jinxuan Cao Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province College of Food&Pharmaceutical SciencesNingbo UniversityNingbo315211China School of Food and Health Beijing Technology and Business University (BTBU)BeijingBeijing100048PR China Meat Processing Key Laboratory of Sichuan Province School of Food and Biological EngineeringChengdu UniversityNo.2025 Chengluo AvenueChengdu610106China

Microorganisms played a key role in developing the flavor quality,while few studies focused on the relationship between microbial diversity and flavor quality of dry-cured boneless *** explore the relationship,sensory evaluation,lipases,microorganism communities,free fatty acids and volatile compounds were investigated in dry-cured boneless ham with different quality grades(NS,WS and GS groups);the correlation between cored microbes and crucial volatiles was further evaluated by metabolic network *** group showed the highest scores in aroma and overall acceptance among three *** highest values of phospholipase activities(7.88 U*g−1 protein)were shown in GS group,while the lowest values of TBARS(0.93 mg/kg)were observed in GS among three ***-throughput sequencing revealed that fungi showed the most various among three groups;Xerochrysium,Aspergillus,Penicillium and Debaryomyces were the most genera in ***-GC-MS revealed that GS showed higher contents and numbers in volatiles than other groups;aldehydes and furans were intensely response to the variations of volatiles among these *** pathway further revealed that several key species derived from Penicillium and Aspergillus accelerated the formation of volatiles byβ-lipoxidation and Strecker *** results indicated that molds could be the major contributors in developing and differentiating the flavor quality of Chinese dry-cured boneless ham.

关键词： Dry-cured boneless ham Microbial communities Volatile compounds Lipid oxidation Metabolic network

Anemia in Chinese patients with Takayasu arteritis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国循环杂志 2018年第S1期33卷 145-146页

作者： ying Zhang Peng Fan fang Luo Xianliang zhou Department of Cardiology National Center for Cardiovascular DiseasesFuwai HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

Objective Anemia as a concomitant disease of patients with Takayasu arteritis (TA) has been reported in several case reports, but epidemiological studies of large populations are lacking. This study evaluated the prev... 详细信息

关键词： Takayasu arteritis case reports

Electroacupuncture at Sensitized Acupoints Relieves Somatic Referred Pain in Colitis Rats by Inhibiting Sympathetic-Sensory Coupling to Interferewith 5-HT Signaling Pathway

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2024年第2期30卷 152-162页

作者： YANG ying QU Jin-yu GUO Hua zhou Hai-ying RUAN Xia PENG ying-chun SHEN Xue-fang XIONG Jin WANG Yi-li School of Clinical Medicine Chengdu Medical CollegeChengdu(610500)China Department of Rehabilitation Medicine the First Affliated Hospital of Chengdu Medical CollegeChengdu(610500)China Department of Rehabilitation Medicine West China HospitalSichuan University/West China School of NursingSichuan UniversityChengdu(610041)China Department of Neurology the First Affiliated Hospital of Chengdu Medical CollegeChengdu(610500)China

Objective:To investigate whether electroacupuncture(EA) at sensitized acupoints could reduce sympathetic-sensory coupling(SSC) and neurogenic inflammatory response by interfering with 5-hydroxytryptamine(5-HT)ergic neural pathways to relieve colitis and somatic referred pain,and explore the underlying ***:Rats were treated with 5% dextran sodium sulfate(DSS) solution for 7 days to establish a colitis *** rats were randomly divided into the control and model groups according to a random number table(n=6).According to the Research on Rat Acupoint Atlas",sensitized acupoints and non-sensitized acupoints were *** were randomly divided into the control,model,Zusanli-EA(ST 36),Dachangshu-EA(BL 25),and Xinshu(BL 15) groups(n=6),as well as the control,model,EA,and EA+GR113808(a 5-HT inhibitor)groups(n=6).The rats in the control group received no *** was administered on 2 days after modeling using the stimulation pavameters:1 mA,2 Hz,for 30 min,with sparse and dense waves,for 14 consecutive ***113808 was injected into the tail vein at 5 mg/kg before EA for 10 min for 7 consecutive *** sensitivity was assessed with von Frey *** weight and disease activity index(DAI) scores of rats were *** and eosin staining was performed to observe colon *** was analyzed by immunofluorescence *** staining was performed to detect 5-HT and substance P(SP) *** calcitonin gene-related peptide(CGRP) in skin tissue and tyrosine hydroxylase(TH) protein levels in DRG were detected by Western *** levels of hyaluronic acid(HA),bradykinin(BK),prostaglandin I2(PGI2) in skin tissue,5-HT,tryptophan hydroxylase 1(TPH1),serotonin transporters(SERT),5-HT 3 receptor(5-HT3R),and 5-HT 4 receptor(5-HT4R) in colon tissue were measured by enzyme-linked immunosorbent assay(ELISA).Results:BL 25 and ST 36 acupoints were determined as sensitized acupoints,and BL 1

关键词： electroacupuncture sensitized acupoints sympathetic-sensory coupling 5-hydroxytryptamine neurogenic inflammation somaticreferredpain