检索结果-南通市图书馆

Causal Analysis Between Rice Growth and Cadmium Accumulation and Transfer under Arbuscular Mycorrhizal Inoculation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rice science 2024年第2期31卷 226-236页

作者： ZHAO ting WANG Li YANG Jixian MA fang State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China

Cadmium(Cd)contamination in rice has been a serious threat to human *** investigate the effects of arbuscular mycorrhizal fungi(AMF)on the Cd translocation in rice,a controlled pot experiment was *** results indicated that AMF significantly increased rice biomass,with an increase of up to 40.0%,particularly in root biomass by up to 68.4%.Notably,the number of prominent rice individuals also increased,and their plasticity was enhanced following AMF *** led to an increase in the net photosynthetic rate and antioxidant enzyme activity of *** the AMF treatment group,the Cd concentration in the rice roots was significantly higher(19.1%‒68.0%)compared with that in the control ***,the Cd concentration in the rice seeds was lower in the AMF treatment group,indicating that AMF facilitated the sequestration of Cd in rice roots and reduced Cd accumulation in the *** coefficients varied across different treatments,suggesting that AMF inoculation reduced the direct impact of soil Cd concentration on the total Cd accumulation in *** translocation of Cd was consistently associated with simultaneous growth dilution and compensatory accumulation as a result of mycorrhizal *** study quantitatively analyzed this process through path analysis and clarified the causal relationship between rice growth and Cd transfer under the influence of AMF.

关键词： cadmium transfer dilution effect heavy metal immobilization mycorrhizal effect path analysis phenotypic plasticity

DCE-MRI in hepatocellular carcinoma-clinical and therapeutic image biomarker

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第12期20卷 3125-3134页

作者： Bang-Bin Chen tiffany ting-fang shih Department of Medical Imaging National Taiwan University Hospital Department of Radiology National Taiwan UniversityMedical College

Dynamic contrast-enhanced magnetic resonance imaging(DCE-MRI)enables tumor vascular physiology to be *** the tumor tissue,contrast agents(gadolinium chelates)extravasate from intravascular into the extravascular extracellular space(EES),which results in a signal increase on T1-weighted *** rate of contrast agents extravasation to EES in the tumor tissue is determined by vessel leakiness and blood ***,the signal measured on DCE-MRI represents a combination of permeability and *** semi-quantitative analysis is based on the calculation of heuristic parameters that can be extracted from signal intensity-time *** enhancing curves can also be deconvoluted by mathematical modeling to extract quantitative parameters that may reflect tumor perfusion,vascular volume,vessel permeability and *** hepatocellular carcinoma(HCC)is a hypervascular tumor,many emerging therapies focused on the inhibition of ***-MRI combined with a pharmacokinetic model allows us to produce highly reproducible and reliable parametric maps of quantitative parameters in *** therapies change quantitative parameters of DCE-MRI,which may be used as early indicators of tumor response to anti-angiogenesis agents that modulate tumor *** the setting of clinical trials,DCE-MRI may provide relevant clinical information on the pharmacodynamic and biologic effects of novel drugs,monitor treatment response and predict survival outcome in HCC patients.

关键词： Dynamic contrast-enhanced magnetic resonance imagi

Enrichment and reconfiguration of titanium-bearing phase in vortex smelting reduction process of vanadium-titanium magnetite

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research(International) 2024年第7期31卷 1582-1589页

作者： Yong-chao Han Zhi-he Dou Rui Zhang ting-an Zhang Shuai fang Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Shenyang 110819LiaoningChina School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

To comprehensively utilize the low-iron high-vanadium-titanium magnetite,a new method of vortex smelting reduction of vanadium-titanium magnetite was proposed,and the enrichment and reconstitution regularity of Ti-bearing phases in the slag was investigated through X-ray fluorescence spectrometry,X-ray photoelectron spectroscopy,X-ray diffraction analysis,and optical *** phase diagram revealed that the preferential crystallization of MgTi_(2)O_(5) can be achieved by adjusting the CaO,MgO,and TiO_(2) contents of *** predominant Ti-bearing phases in the slag obtained from the reduction process are MgxTi_(3_x)O_(5)(0≤x≤1)and CaTiO_(3).FeTiO_(3) is present at carbon-iron ratio(CR)=1.3,while MgTi_(2)O4 and TiC are formed at CR=*** enrichment of TiO_(2) in the slag increases first and then decreases as the CR increases,and at CR=1.1,the enrichment of TiO_(2) in the slag reaches 51.3 wt.%.Additionally,the concentrations of MgxTi_(3_x)O_(5)(0≤x≤1)and CaTiO_(3) in the slag,along with the grain width of MgxTi_(3_x)O_(5)(0≤x≤1),decrease with the increase in CR.

关键词： Vanadium-titanium magnetite Vortex smelting reduction Phase reconfiguration TiO_(2)enrichment

Application of Dynamic Contrast-enhanced MR Imaging in Pancreatic Disease and Function

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Application of Dynamic Contrast-enhanced MR Imaging in Pancr...

Association of preschool children behavior and emotional problems with the parenting behavior of both parents

中华医学会第十八次全国放射学学术会议

作者： Chih-Wei Yu tiffany ting-fang shih Department of Medical Imaging National Taiwan University Hospital Department of Radiology National Taiwan University College of Medicine

Recent progress in dynamic contrast-enhanced MR imaging(DCE-MRI) and pharmacokinetic(PK) modeling has made the assessment of tissue microcirculation *** DCE-MRI combined with a PK model has been widely used in the evaluation of tumor response to anti-angiogenesis *** those quantitative parameters,the volume transfer constant(Ktrans) of contrast agent across the capillary wall, the extravascular extracellular space volume(ve) and plasma volume(vp) per unit volume of tissue are

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第6期12卷 1084-1093页

作者： Su-Mei Wang Shuang-Qin Yan fang-fang Xie Zhi-Ling Cai Guo-Peng Gao ting-ting Weng fang-Biao Tao Department of Child Health Ma’anshan Maternal and Child Health CenterMa’anshan 243011Anhui ProvinceChina Department of Maternal Child and Adolescent HealthSchool of Public HealthAnhui Medical UniversityHefei 230032Anhui ProvinceChina

BACKGROUND Parental behaviors are key in shaping children’s psychological and behavioral development,crucial for early identification and prevention of mental health issues,reducing psychological trauma in *** To investigate the relationship between parenting behaviors and behavioral and emotional issues in preschool *** From October 2017 to May 2018,7 kindergartens in Ma’anshan City were selected to conduct a parent self-filled questionnaire-Health Development Survey of Preschool ***’s Strength and Difficulties Questionnaire(Parent Version)was applied to measures the children’s behavioral and emotional *** behavior was evaluated using the Parental Behavior *** logistic regression model was used to analyze the association between the detection rate of preschool children’s behavior and emotional problems and their parenting *** High level of parental support/participation was negatively correlated with conduct problems,abnormal hyperactivity,abnormal total difficulty scores and abnormal prosocial behavior *** level of maternal support/participation was negatively correlated with abnormal emotional symptoms and abnormal peer interaction in *** level of parental hostility/coercion was positively correlated with abnormal emotional symptoms,abnormal conduct problems,abnormal hyperactivity,abnormal peer interaction,and abnormal total difficulty scores in children(all Pting behaviors had similarly effects on behavior and emotional problems of preschool children compared with maternal parenting behaviors(all P>0.05),after calculating ratio of odds ratio *** Our study found that parenting behaviors are associated with behavioral and emotional issues in preschool ***,the more supportive or involved the parents are,the fewer behavioral and emotional problems the children experience;conversely,the more hostile or contro

关键词： Children Preschool age Parenting Behavioral Parenting problems

Re-delocalization of localized d-electrons in VO2（R）-VS4 hetero-structure enables high performance of rechargeable Mg-ion batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Magnesium and Alloys 2024年第5期12卷 1830-1840页

作者： Lijiao Zhou Chao Shen Xueyang Hou Zhao fang ting Jin Keyu Xie School of Materials Science and Engineering Northwestern Polytechnical University School of Metallurgical Engineering Xi'an University of Architecture and Technology

Rechargeable Mg-ion batteries（MIBs） have attracted much more attentions by virtue of the high capacity from the two electrons ***, the reversible Mg2+diffusion in cathode materials is restricted by the strong interactions between the high-polarized bivalent Mg2+ions and anionic lattice. Herein, we design and propose a hetero-structural VO2（R）-VS4cathode, in which the re-delocalized d-electrons can effectively shield the polarity of Mg2+ions. Theoretically, the electrons should spontaneously transfer from VS4to VO2（R） through the interfaces of hetero-structure due to the lower work function value of VS4. Furthermore, the internal electrons transfer lead to the electronic injection into VO2（R） from VS4and the partially broken V-V dimers, indicating the presence of lone pair electrons and charge re-delocalization. Benefiting from the shield effect of re-delocalized electrons, and the weakened attraction between cations and O/S anions enables more S2--S22-redox groups to participate the electrochemical reactions and compensate the double charge of Mg2+ions. Accordingly,VO2（R）-VS4hetero-structure exhibits a high specific capacity of 554 mA h g-1at 50 mA g-1. It is believed that the charge re-delocalization of cathode extremely boost the Mg2+ions migration for the high-capacity of MIBs.

关键词： Mg-ion batteries Cathode Charge delocalization Electronic structure Heterostructure

Clinical nursing value of predictive nursing in reducing complications of pregnant women undergoing short-term massive blood transfusion during cesarean section

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第1期12卷 51-58页

作者： Li Cheng Li-Ping Li Yuan-Yuan Zhang fang Deng ting-ting Lan Department of Obstertrics Wuhan Third HospitalWuhan 430000Hubei ProvinceChina Department of Gynaecology Wuhan No.1 HospitalWuHan 430030Hubei ProvinceChina Center for Reproductive Medicine Department of Obstetrics and GynecologySichuan Provincial People's HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengdu 610072Sichuan ProvinceChina

BACKGROUND Cesarean hemorrhage is one of the serious complications,and short-term massive blood transfusion can easily cause postoperative infection and physical stress ***,predictive nursing intervention has important clinical significance for *** To explore the effect of predictive nursing intervention on the stress response and complications of women undergoing short-term mass blood transfusion during cesarean section(CS).METHODS A clinical medical record of 100 pregnant women undergoing rapid mass blood transfusion during sections from June 2019 to June *** to the different nursing methods,patients divided into control group(n=50)and observation group(n=50).Among them,the control group implemented routine nursing,and the observation group implemented predictive nursing intervention based on the control ***,compared the differences in stress res-ponse,complications,and pain scores before and after the nursing of pregnant women undergoing rapid mass blood transfusion during *** The anxiety and depression scores of pregnant women in the two groups were significantly improved after nursing,and the psychological stress response of the observation group was significantly lower than that of the control group(P<0.05).The heart rate and mean arterial pressure(MAP)of the observation group during delivery were lower than those of the control group,and the MAP at the end of delivery was lower than that of the control group(P<0.05).Moreover,different pain scores improved significantly in both groups,with the observation group considerably less than the control group(P<0.05).After nursing,complications such as skin rash,urinary retention,chills,diarrhea,and anaphylactic shock in the observation group were 18%,which significantly higher than in the control group(4%)(P<0.05).CONCLUSION Predictive nursing intervention can effectively relieve the pain,reduce the incidence of complications,improve mood and stress response,and serve as a

关键词： Predictive care Rapid mass blood transfusion Cesarean section Stress response Complications

Timing theory integrated nursing combined behavior change integrated theory of nursing on primiparous influence

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 2024年第2期12卷 293-301页

作者： Yan-Xia He Yang Lv ting-ting Lan fang Deng Yuan-Yuan Zhang Department of Obstetrics and Gynecology Wuhan Children’s HospitalWuhan 430015Hubei ProvinceChina Center for Reproductive Medicine Department of Obstetrics and GynecologySichuan Provincial People's HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaChengdu 610072Sichuan ProvinceChina

BACKGROUND The comprehension and utilization of timing theory and behavior change can offer a more extensive and individualized provision of support and treatment alternatives for *** has the potential to enhance the psychological well-being and overall quality of life for primipara,while also furnishing healthcare providers with efficacious interventions to tackle the psychological and physiological obstacles encountered during the stages of pregnancy and *** To explore the effect of timing theory combined with behavior change on selfefficacy,negative emotions and quality of life in patients with *** A total of 80 primipara cases were selected and admitted to our hospital between August 2020 and May *** cases were divided into two groups,namely the observation group and the control group,with 40 cases in each *** nursing interventions differed between the two groups,with the control group receiving routine nursing and the observation group receiving integrated nursing based on the timing theory and behavior *** study aimed to compare the pre-and post-nursing scores of Chinese Perceived Stress Scale(CPSS),Edinburgh Postpartum Depression Scale(EPDS),Self-rating Anxiety Scale(SAS),breast milk knowledge,self-efficacy,and SF-36 quality of life in both *** After nursing,the CPSS,EPDS,and SAS scores of the two groups was significantly lower than that before nursing,and the CPSS,EPDS,and SAS scores of the observation group was significantly lower than that of the control group(P=0.002,P=0.011,and P=0.001 respectively).After nursing,the breastfeeding knowledge mastery,selfefficacy,and SF-36 quality of life scores was significantly higher than that before nursing,and the breastfeeding knowledge mastery(P=0.013),self-efficacy(P=0.008),and SF-36 quality of life(P=0.011)scores of the observation group was significantly higher than that of the control *** The integration of timing theory and behavior

关键词： Timing theory Behavior change Primipara Bad mood Quality of life

Size-controlled synthesis and near-infrared photothermal response of Cp^(*)Rh-based metalla[2]catenanes and rectangular metallamacrocycles

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第6期35卷 337-343页

作者： Ying Zhao Yin-Hang Chai Tian Chen Jie Zheng ting-ting Li Francisco Aznarez Li-Long Dang Lu-fang Ma College of Chemistry and Chemical Engineering Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal UniversityLuoyang 471934China College of Chemistry Zhengzhou UniversityZhengzhou 450001China Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials State Key Laboratory of Molecular Engineering of PolymersDepartment of ChemistryFudan UniversityShanghai 200438China

A variety of research reports on novel supramolecular topologies have been published over the last ***,it is still a great challenge to tap into the inner functional properties of these ***,two tetranuclear metallamacrocycles 1 and 2 and four octonuclear[2]catenanes 3-6 were constructed successfully via a coordination-driven self-assembly strategy,by conscious design and use of the tetramethyl bidentate pyridine ligand L1,and the appropriate selection of six binuclear half-sandwich rhodium building units with different longitudinal *** complexes have been fully characterized by single crystal X-ray diffraction analysis and NMR ***,near-infrared photothermal studies of the obtained[2]catenanes reveal different photothermal response in solid and solution states,which may be attributed to a strong fluorescence quenching effect of the half-sandwich organometallic fragment and different conjugated effect of Cp^(*)Rh based building blocks in the interlocking *** photothermal conversion efficiencies of[2]catenanes 4-6 fall in the range 30.5%-16.5% *** contribution aims to play a key role in the experimental development of Cp^(*)-based photothermal materials.

关键词： Catenanes Photothermal materials Supramolecular topologies Half-sandwich fragment 3,3'-N-donor analogues