检索结果-南通市图书馆

Journal of Forestry Research 2015年第3期26卷 777-783页

作者： Xinyu Chen Huwei Yuan Xiange Hu Jingxiang Meng Xianqing zhou Xiao-Ru wang yue Li National Engineering Laboratory for Forest Tree Breeding Key Laboratory of Genetic and Breeding in Forest Trees and Ornamental Plants of Ministry of Education College of Biological Sciences and Technology Beijing Forestry University State-owned Forest Farm in Hebei Province Department of Ecology and Environmental Science UmeUniversity SE-901 87 Ume Sweden

Electrical impedance （El） and phase angle （PHI） parameters in AC impedance spectroscopy are important electrical parameters in the study of medical pathology. However, little is known about their application in variation and genetic relationship studies of forest trees. In order to test whether impedance parameters could be used in genetic relationship analysis among conifer species, E1 and PHI were measured in a seedling experiment test composed of Pinus tabuliformis, Pinus yunnanensis, and Pinus densata in a habitat of Pinus tabuliformis. The results showed that variations in both EI and PHI among species were sig- nificant in different electric frequencies, and the EI and PHI values measured in the two populations of P. densata were between the two parental species, P. yunnanensis and P. tabuliformis. These results show that these two impedance parameters could reflect the genetic relationship among pine species. This was the first time using the two AC impedance spectroscopy parameters to test the genetic relationship analysis between tree species, and would be a hopeful novelreference methodology for future studies in evolution and genetic variation of tree species.

关键词： Electrical impedance Phase angle Pinustabuliformis Pinus yunnanensis . Pinus densata . Seedlingneedle Genetic variation

Combined garnet,scheelite and apatite U-Pb dating of mineralizing events in the Qiaomaishan Cu-W skarn deposit,eastern China

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2023年第1期14卷 17-32页

作者： yue Li Feng Yuan Simon M.Jowitt Xiangling Li Taofa zhou Fangyue wang Yufeng Deng Ore Deposit and Exploration Centre(ODEC) Hefei University of TechnologyHefei 23009China Anhui Province Engineering Research Center for Mineral Resources and Mine Environments Hefei 23009China Department of Geoscience University of Nevada Las Vegas4505 S.Maryland Pkwy.NV 89154-4010USA

Determining the precise timing of mineralization and mineralizing events is crucial to understanding regional mineralizing and other geological events and ***,there are a number of mineralogical and analytical limitations to the approaches developed for the absolute dating of mineralizing systems,such as molybdenite Re-Os and zircon and garnet U-Pb,among *** means that the precise and accurate dating of mineralizing systems that may not contain minerals suitable for dating using existing approaches requires the development of new(and ideally in situ)approaches to absolute *** study outlines a new in situ analytical approach that has the potential to rapidly and accurately evaluate the timing of ore *** study employs a novel application of in situ scheelite U-Pb dating analysis using laser ablation-inductively coupled plasma-mass spectrometry(LA-ICP-MS)and samples from the Qiaomaishan deposit,a representative example of skarn mineralization within the Xuancheng ore district of eastern *** approach to scheelite dating of the deposit is verified by cross-comparison to dating of cogenetic garnet and apatite,proving the effectiveness of this *** new approach to dating of scheelite-bearing geological systems is rapid,cheap,requires little sample preparation,and is undertaken in situ,allowing crucial geological and mineralogical context to be retained during *** approaches outlined here not only allow the determination of the absolute timing of formation of the Qiaomaishan deposit through the U-Pb dating of scheelite[138.6±3.2 Ma,N=39,mean square weighted deviation(MSWD)=1.17],garnet(138.4±1.0 Ma,N=40,MSWD=1.3),and apatite(139.6+3.3 Ma,N=35,MSWD=0.72),but also further supports the theoretical genetic links between this mineralization and the emplacement of a proximal porphyritic granodiorite intrusion(zircon U-Pb age:139.5±1.2 Ma,N=23,MSWD=0.3).Moreover,our research indicates that the higher the concentrations

关键词： In-situ scheelite U-Pb dating In-situ garnet U-Pb dating In-situ apatite U-Pb dating Qiaomaishan skarn deposit

SOCS3 Attenuates GM-CSF/IFN-γ-Mediated Inflammation During Spontaneous Spinal Cord Regeneration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neuroscience Bulletin 2020年第7期36卷 778-792页

作者： Xuejie Zhang Bingqiang He Hui Li Yingjie wang yue zhou Wenjuan wang Tiancheng Song Nan Du Xingxing Gu Yi Luo Yongjun wang Key laboratory of Neuroregeneration of Jiangsu and The Ministry of Education Nantong UniversityNantong 226001China Co-innovation Center of Neuroregeneration Nantong UniversityNantong 226001China Department of Rehabilitation Medicine Affiliated Hospital of Nantong UniversityNantong 226001China

SOCS3,a feedback inhibitor of the JAK/STAT signal pathway,negatively regulates axonal regrowth and inflammation in the central nervous system(CNS).Here,we demonstrated a distinct role of SOCS3 in the injured spinal cord of the gecko following tail *** the gecko spinal cord did not evoke an inflammatory cascade except for an injury-stimulated elevation of the granulocyte/macrophage colony-stimulating factor(GM-CSF) and interferon gamma(IFN-γ) ***,the expression of SOCS3 was upregulated in microglia,and unexpectedly not in *** expression of SOCS3 was sufficient to suppress the GMCSF/IFN-γ-driven inflammatory responses through its KIR domain by attenuating the activities of JAK1 and ***3 was also linked to GM-CSF/IFN-y-induced *** of adenovirus overexpressing SOCS3 in the injured cord resulted in a significant decrease of inflammatory *** results reveal a distinct role of SOCS3 in the regenerating spinal cord,and provide new hints for CNS repair in mammals.

关键词： SOCS3 Spinal cord Vertebrate Inflammation Cytokine

Pristine PN junction toward atomic layer devices

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2022年第7期11卷 1515-1522页

作者： Hui Xia Man Luo Wenjing wang Hailu wang Tianxin Li Zhen wang Hangyu Xu yue Chen Yong zhou Fang wang Runzhang Xie Peng wang Weida Hu Wei Lu State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China University of Chinese Academy of Sciences 100049 BeijingChina Jiangsu Key Laboratory of ASIC Design School of Information Science and TechnologyNantong UniversityNantong 226019 JiangsuChina School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China

In semiconductor manufacturing,PN junction is formed by introducing dopants to activate neighboring electron and hole *** avoid structural distortion and failure,it generally requires the foreign dopants localize in the designated ***,however,is challenging due to an inevitable interdiffusion *** we report a brand-new junction architecture,called"layer PN junction",that might break through such limit and help redefine the semiconductor device *** from all existing semiconductors,we find that a variety of van der Waals materials are doping themselves from n-to p-type conductance with an increasing/decreasing *** means the capability of constructing homogeneous PN junctions in monolayers'dimension/precision,with record high rectification-ratio(>10^(5))and low cut-off current(<1 pA).More importantly,it spawns intriguing functionalities,like gate-switchable-rectification and noise-signal decoupled *** disclosed here might open up a path to develop novel nanodevice applications,where the geometrical size becomes the only critical factor in tuning charge-carrier distribution and thus functionality.

关键词： dopant tuning layer

Involvement of the autophagy-related gene BdATG8 in development and pathogenicity in Botryosphaeria dothidea

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 Integrative Agriculture 2022年第8期21卷 2319-2328页

作者： LIU Na LIAN Sen zhou Shan-yue wang Cai-xia REN Wei-chao LI Bao-hua College of Plant Health and Medicine Qingdao Agricultural UniversityQingdao 266109P.R.China

Botryosphaeria dothidea is a destructive fungal pathogen that causes Botryosphaeria canker and fruit ring rot on apple *** is a process of self-degradation that maintains intracellular homeostasis via lysosomal *** date,the biological role of autophagy in *** remains *** this study,we identified and characterized the autophagy-related gene BdATG8 in ***8 was able to restore the defect in nitrogen starvation tolerance of Saccharomyces cerevisiae ATG8 deletion ***-BdAtg8 was shown to be a useful marker for monitoring autophagy in *** deletion of Bd ATG8(ΔBd Atg8)blocked autophagy and significantly impaired mycelial growth,conidiation and perithecium *** addition,ΔBdAtg8 showed significantly increased sensitivity to phytoalexin and oxidative stress,suggesting that BdATG8 plays critical roles in overcoming phytoalexin and reactive oxygen species(ROS)-mediated plant *** assays revealed thatΔBdAtg8 almost lost ability to infect ***,our results indicate that BdATG8 plays an important role in fungal development,stress responses and pathogenesis in ***.

关键词： Botryosphaeria dothidea autophagy BdATG8 development pathogenicity

Tea polyphenols increase the antioxidant status of laying hens fed diets with different levels of ageing corn

在线全文

学校读者我要写书评

暂无评论

Animal Nutrition 2021年第3期7卷 650-660页

作者： Ling zhou Xuemei Ding Jianping wang Shiping Bai Qiufeng Zeng Zuowei Su yue Xuan Keying Zhang Institute of Animal Nutrition Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of EducationSichuan Agricultural University211 Huimin RoadWenjiangChengdu611130China

This study was conducted to evaluate the effects of ageing corn levels(stored for 4 years)with or without the supplementation of tea polyphenols(TPP)on the performance,egg quality and antioxidant status of laying hens.A total of 288 Lohmann commercial laying hens(63-week-old)were used under a 2×4 factorial arrangement with 4 levels of dietary ageing corn(0%,25%,50%,or 100%)and 2 levels of TPP(0 and 600 mg/kg)for 8 *** ageing corn linearly decreased(P<0.05)the egg production,serum total antioxidant capacity(T-AOC),liver glutathione peroxidase(GSH-Px)of laying hens,yolk index,yolk colour,1,1-diphenyl-2-picrylhydrazyl(DPPH)value and the reducing power value of egg yolk,but it linearly increased(P<0.05)the feed conversion rate,ovary malondialdehyde(MDA)content of laying hens,and the protein carbonyl content of egg *** polyphenol supplementation increased(P<0.05)the serum T-AOC,serum superoxide dismutase(SOD),liver SOD,liver GSH-Px,ovary SOD,GSH-Px,the expression of antioxidant-related genes of laying hens,albumen height,Haugh unit,DPPH value and the majority free amino acids of egg yolk,but it decreased(P<0.05)the serum MDA content of laying hens,MDA and protein carbonyl of egg *** conclusion,the ageing corn significantly reduced the perfor-mance,egg quality,antioxidant status and egg antioxidant capacity of laying hens,while TPP supple-mentation partially counteracted the adverse effects,especially antioxidant status and egg antioxidant capacity of laying hens.

关键词： Tea polyphenol Antioxidant capacity Laying hen Ageing corn

Optimization of electrocatalytic properties of NiMoCo foam electrode for water electrolysis by post-treatment processing

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2015年第11期34卷 802-807页

作者： Jian-Wei wang yue-Fa wang Jing-Guo Zhang Yan-Lin Yu Ge-Ge zhou Lei Cheng Lin-Shan wang Z.Zak Fang State Key Laboratory of Nonferrous Metals and Processes General Research Institute for Nonferrous Metals GRIPM Advanced Materials Co. Ltd General Research Institute for Nonferrous Metals Department of Metallurgical Engineering University of UtahSalt Lake City

Hydrogen is a potential alternative to fossil fuels in coping with the increased global energy demand,and water electrolysis is an attractive approach for H2production. Nickel–molybdenum–cobalt（Ni Mo Co） foam electrodes used for water electrolysis were prepared by the electrodeposition method, and the influence of heat treatments on the surface structure of Ni Mo Co foam electrodes,mechanical properties, and electrochemical performance of the synthesized electrodes was investigated in order to optimize the post-treatment processes. The residual carbon in the surface of the electrode was removed by decarbonization in the atmospheric condition. The carbon content decreases to lower than 200 ×10-6when the temperature exceeds 500 °C. Next, the material is reduced in hydrogen atmosphere from 500 to 1100 °C to remove the surface oxides. As the temperature increases, the surface molybdenum content increases significantly between 500 and 800 °C, the surface grains become coarser, and the tensile strength and elongation increase as well. The lowest polarization overpotential is obtained at 800 °C. Below 800 °C, the electrode is only partially reduced and some black oxide zones are observed on the electrode surface,which leads to the higher polarization overpotential. Thesamples heat-treated at the temperatures of higher than 800 °C show better strength and toughness as well as brighter appearance. However, the surface particle coarsening leads to a decrease in the specific surface area and a higher overpotential.

关键词： Water electrolysis Foam electrode Ni Mo Co Post-tr

Bouveret syndrome: A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2019年第23期7卷 4144-4149页

作者： Fei wang Zhi-Qiang Du Yi-Lan Chen Tian-Ming Chen yue wang Xiang-Rong zhou Department of Gastroenterology People’s Hospital of Jianyang City

BACKGROUND Bouveret syndrome is a rare complication of cholelithiasis,with only 315 cases reported in the literature between 1967 and *** in diagnosis is associated with a high mortality *** is based upon clinical manifestations,gastroscopy,and imaging studies such as abdominal computed tomography and magnetic resonance *** stone extraction or lithotripsy is the preferred choice for treatment as it is safe and minimally invasive with few ***,if endoscopy fails,surgery is *** SUMMARY A 61-year-old female patient presented with recurrent epigastric pain for more than 6 *** endoscopy,a large amount of food residue was present in the stomach with multiple stones and ulcers in the antro-pyloric *** on these findings,a diagnosis of gastrolithiasis was ***,computed tomography of the abdomen revealed the correct diagnosis of Bouveret ***,endoscopic treatment was attempted but it ***,she was successfully managed by cholecystectomy with duodenal stone extraction and fistula repair(one-step method).At the last follow-up 6 mo after surgery,the patient was *** Bouveret syndrome is a rare complication of gallstones that requires prompt endoscopic or surgical treatment to prevent mortality.

关键词： Bouveret syndrome Gallstones Intestinal obstruction Case report

Study on Kinetics for Desulfurization of Model Diesel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Petroleum Processing & Petrochemical Technology 2009年第2期11卷 43-47页

作者： Qian Jianhua zhou yuenan Liu Lin wang yue Xing Jinjuan Lü Hong Liaoning Province Key Laboratory for Synthesis and Application of Functional Compounds Bohai University Jinzhou 121000 Materials and Metallurgy College Northeastern University

In this study,by means of the experiments for desulfurization of model diesel through oxidative extraction,the changes associated with the rate of desulfurization of diesel and the mechanism for oxidation of sulfides in diesel were explored. Through studying the mechanism for oxidation of sulfides and the principle of solvent extraction,the kinetic equation of desulfurization via oxidative extraction were determined. By means of the evaluation of model parameters and curve fitting,the reaction order between organic sulfide and sulfone,the intrinsic oxidation rate constant of organic sulfide and sulfone,and the equilibrium constant between sulfone in model diesel and extractive solvent were determined. The experimental values of the desulfurization rate and the theoretical values of the corresponding model equation had closely demonstrated that the desulfurization reaction rate had high accuracy. And the reaction kinetics could provide an important basis for diesel desulfurization process in the future.

关键词： oxidative desulfurization kinetic equation curve fitting equilibrium constant

Diagnostic value of amygdala volume on structural magnetic resonance imaging in Alzheimer’s disease

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2021年第18期9卷 4627-4636页

作者： De-Wei wang Shou-Luan Ding Xian-Li Bian Shi-yue zhou Hui Yang Ping wang Department of Neurology The Second HospitalCheeloo College of MedicineShandong UniversityJinan 250033Shandong ProvinceChina Center for Evidence-Based Medicine Institute of Medical SciencesThe Second HospitalCheeloo College of MedicineShandong UniversityJinan 250033Shandong ProvinceChina Cheeloo College of Medicine Shandong UniversityJinan 250012Shandong ProvinceChina

BACKGROUND The main clinical manifestation of Alzheimer’s disease(AD)is memory loss,which can be accompanied by neuropsychiatric symptoms at different stages of the *** is closely related to emotion and *** To evaluate the diagnostic value of amygdala on structural magnetic resonance imaging(sMRI)for *** In this study,22 patients with AD and 26 controls were *** amygdala volumes were measured by sMRI and analyzed using an automatic analysis *** The bilateral amygdala volumes of AD patients were significantly lower than those of the controls and were positively correlated with the hippocampal *** operating characteristic curve analyses showed that the sensitivity of the left and right amygdala volumes in diagnosing AD was 80.8%and 88.5%,*** analyses showed that amygdala atrophy was more serious in AD patients with neuropsychiatric symptoms,which mainly included irritability(22.73%),sleep difficulties(22.73%),apathy(18.18%),and hallucination(13.64%).CONCLUSION Amygdala volumes measured by sMRI can be used to diagnose AD,and amygdala atrophy is more serious in patients with neuropsychiatric symptoms.

关键词： Alzheimer’s disease Amygdala Structural magnetic resonance imaging Neuropsychiatric symptoms