检索结果-南通市图书馆

Neuromodulatory therapies for patients with prolonged disorders of consciousness

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 Medical Journal 2021年第7期134卷 765-776页

作者： Yue-Hao Wu Jie Yu Li-Rong Hong ben-yan luo Department of Neurology First Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouZhejiang 310003China Department of Neurology First People’s Hospital of Yuhang DistrictHangzhouZhejiang 310003China Department of Rehabilitation Hangzhou Hospital of Zhejiang Armed Police CorpsHangzhouZhejiang 310051China.

Background:Reviving patients with prolonged disorders of consciousness(DOCs)has always been focused and challenging in medical *** to the limited effectiveness of available medicine,recent research has increasingly turned towards neuromodulatory therapies,involving the stimulation of neural *** summarised the progression of research regarding neuromodulatory therapies in the field of DOCs,compared the differences among different studies,in an attempt to explore optimal stimulation patterns and parameters,and analyzed the major limitations of the relevant studies to facilitate future ***:We performed a search in the PubMed database,using the concepts of DOCs and *** criteria were:articles in English,published after 2002,and reporting clinical trials of neuromodulatory therapies in human patients with ***:Overall,187 published articles met the search criteria,and 60 articles met the inclusion *** are differences among these studies regarding the clinical efficacies of neurostimulation techniques for patients with DOCs,and large-sample studies are still ***:Neuromodulatory techniques were used as trial therapies for DOCs wherein their curative effects were *** difficulties in detecting residual consciousness,the confounding effect between the natural course of the disease and therapeutic effect,and the heterogeneity across patients are the major ***-sample,well-designed studies,and innovations for both treatment and assessment are anticipated in future research.

关键词： Disorders of consciousness Neuromodulation Therapy

Is surface dyslexia in Chinese the same as in alphabetic one?

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2007年第4期120卷 348-349页

作者： luo ben-yan ZHAO Xiao-yu WANG yan-wen XU Ming-wei WENG Xu-chu Department of Neurology First Affiliated Hospital of Medicine CollegeZhejiang UniversityHangzhou 310003China Laboratory for Higher Brain Function.Institute of Psychology Chinese Academy of SciencesBeijing 100101China

Cognitive neuropsychology has made great contributions to our understanding of tile neural basis of language since Broca＇s seminal work; the primary neural circuitries for language processing have been documented. Unfortunately, these achievements were almost exclusively from studies on alphabetic languages. Recent behavioral and imaging studies suggest that the neural network involving processes of Chinese is not entirely identical to that in alphabetic languages. In the present study, reading performance in a dyslexic patient, whose native language is Chinese, was systematically examined by a series of cognitive neuropsychological experiments, and theoretical implications of this study was discussed in comparisons with studies in dyslexic patients who use alphabetic scripts.

关键词： acquired dyslexia neuropsvchology reading

Homoclinic Solutions for a Class of Perturbed Fractional Hamiltonian Systems with Subquadratic Conditions

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2024年第5期40卷 1177-1196页

作者： Ying luo Fei GUO yan LIU School of Mathematics Tianjin UniversityTianjin 300354P.R.China Tianjin Key Laboratory of Brain-Inspired Intelligence Technology Tianjin300354P.R.China

In this paper,we consider the following perturbed fractional Hamiltonian systems{tD_(∞)^(α)(_(-∞)D_(t)^(α)u(t))+L(t)u(t)=■_(u)W(t,u(t))+■(u)G(t,u(t)),t∈R,u∈H^(α)(R,R^(N)),whereα∈(1/2,1],L∈C(R,R^(N×N))is symmetric and not necessarily required to be positive definite,W∈C1(R×R^(N,R))is locally subquadratic and locally even near the origin,and perturbed term G∈C1(R×R^(N,R))maybe has no parity in *** the perturbed method improved by the authors,a sequence of nontrivial homo clinic solutions is obtained,which generalizes previous results.

关键词： Perturbed fractional Hamiltonian systems subquadratic condition perturbed method homoclinic solutions multiplicity

Complications associated with the apnea test in the determination of the brain death

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2008年第13期121卷 1169-1172页

作者： WU Xiao-liang FANG Qiang LI Li QIU Yun-qing luo ben-yan Department of Intensive Care Unit First Affiliated Hospital of College of Medicine Zhejiang University Hangzhou Zhejiang 310003 China Department of Infectious Disease First Affiliated Hospital of College of Medicine Zhejiang University Hangzhou Zhejiang 310003 China Department of Neurology First Affiliated Hospital of College of Medicine Zhejiang University Hangzhou Zhejiang 310003 China

Background An apnea test is essential in the clinical determination of brain death. This study was conducted to analyse complications associated with the apnea test in the determination of the brain death. Methods On 93 adult patients in coma in Zhejiang Province of China from January 2003 to December 2006, 179 apnea tests were performed as a part of the determination of brain death. Potential risk conditions and complications were analysed during apnea tests. Results During apnea, serious cardiac arrhythmia did not occur in all patients. Complications occurred in 37 of 179 （21%） apnea tests. Hypotension occurred in 30 patients （17%） and it was observed in 8/94 （9%） tests with baseline value of systolic arterial blood pressure not less than 120 mmHg, and 22/85 （26%） less than 120 mmHg （P 〈0.05）. Severe hypoxaemia occurred in 10 patients （6%） of which 3/138 （2%） tests with baseline value of arterial oxygen pressure not less than 200 mmHg, and 7/41 （17%） less than 200 mmHg （P 〈0.05）. Conclusions This study demonstrated that complications occurred mostly in patients with inadequate baseline systolic arterial blood pressure and preoxygenation. Adequate precautions during the apnea tests may reduce the risk of cardiovascular and oxygenation complication.

关键词： apnea test brain death complications

Quick Weighing of Passing Vehicles Using the Transfer-Learning-Enhanced Convolutional Neural Network

在线全文

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2024年第6期139卷 2507-2524页

作者： Wangchen yan Jinbao yang Xin luo College of Civil Engineering Xiangtan UniversityXiangtan411105China Energy&Environmental Engineering Department China CEC Engineering CorporationChangsha410114China

Transfer learning could reduce the time and resources required by the training of new models and be therefore important for generalized applications of the trainedmachine learning *** this study,a transfer learningenhanced convolutional neural network(CNN)was proposed to identify the gross weight and the axle weight of moving vehicles on the *** proposed transfer learning-enhanced CNN model was expected to weigh different bridges based on a small amount of training datasets and provide high identification *** of all,a CNN algorithm for bridge weigh-in-motion(B-WIM)technology was proposed to identify the axle weight and the gross weight of the typical two-axle,three-axle,and five-axle vehicles as they crossed the bridge with different loading routes and ***,the pre-trained CNN model was transferred by fine-tuning to weigh themoving vehicle on another ***,the identification accuracy and the amount of training data required were compared between the two CNN *** showed that the pre-trained CNN model using transfer learning for B-WIM technology could be successfully used for the identification of the axle weight and the gross weight for moving vehicles on another bridge while reducing the training data by 63%.Moreover,the recognition accuracy of the pre-trained CNN model using transfer learning was comparable to that of the original model,showing its promising potentials in the actual applications.

关键词： Bridge weigh-in-motion transfer learning convolutional neural network

Study of the pressure transient behavior of directional wells considering the effect of non-uniform flux distribution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Science 2024年第3期21卷 1765-1779页

作者： yan-Zhong Liang Bai-Lu Teng Wan-Jing luo School of Energy Resources China University of Geosciences(Beijing)Beijing100083China

During the production,the fluid in the vicinity of the directional well enters the wellbore with different rates,leading to non-uniform flux distribution along the directional ***,in all existing studies,it is oversimplified to a uniform flux distribution,which can result in inaccurate results for field ***,this paper proposes a semi-analytical model of a directional well based on the assumption of non-uniform flux ***,the direction well is discretized into a carefully chosen series of linear sources,such that the complex well trajectory can be captured and the nonuniform flux distribution along the wellbore can be considered to model the three-dimensional flow *** using the finite difference method,we can obtain the numerical solutions of the transient flow within the *** the aid of Green's function method,we can obtain the analytical solutions of the transient flow from the matrix to the *** complete flow behavior of a directional well is perfectly represented by coupling the above two types of transient ***,on the basis of the proposed model,we conduct a comprehensive analysis of the pressure transient behavior of a directional *** computation results show that the flux variation along the direction well has a significant effect on pressure *** addition,the directional well in an infinite reservoir may exhibit the following flow regimes:wellbore afterflow,transition flow,inclined radial flow,elliptical flow,horizontal linear flow,and horizontal radial *** horizontal linear flow can be observed only if the formation thickness is much smaller than the well ***,a dip region that appears on the pressure derivative curve indicates the three-dimensional flow behavior near the wellbore.

关键词： Directional well Pressure transient behavior Semi-analytical model Non-uniform flux

在线全文

学校读者我要写书评

暂无评论

MicroRNA与神经系统重大疾病

生物化学与生物物理进展 2009年第1期36卷 25-32页

作者：汪进业蔡荣罗本燕浙江大学医学院附属第一医院神经内科杭州310003 浙江理工大学生命科学学院杭州310018

目前有研究证实microRNA参与了神经系统生长发育和生理功能的调控,它也与可塑性障碍性疾病、神经系统退行性疾病、神经系统肿瘤、脑血管疾病等重大疾病的发生发展相关.随着microRNA研究领域的发展,一些重大神经系统疾病的相关发病机制... 详细信息

目前有研究证实microRNA参与了神经系统生长发育和生理功能的调控,它也与可塑性障碍性疾病、神经系统退行性疾病、神经系统肿瘤、脑血管疾病等重大疾病的发生发展相关.随着microRNA研究领域的发展,一些重大神经系统疾病的相关发病机制将有可能被阐释.

关键词： microRNA 神经系统生长发育神经系统重大疾病

Room-temperature hydrogen adsorption in Pd nanoparticle decorated UiO-66-NH2 via spillover

在线全文

学校读者我要写书评

暂无评论

Particuology 2024年第10期93卷 309-315页

作者： Jingchuan Wang Junhong luo Yong Yao Jiangfeng Song yan Shi Institute of Materials China Academy of Engineering PhysicsJiangyou621908China

To improve room-temperature hydrogen storage, palladium (Pd) nanoparticles were innovatively decorated by carbon bridge onto the amino-group functioned Zr-terephthalate metal-organic framework (MOF) UiO-66 to reduce the diffusion energy barrier and then improve the hydrogen spillover effect. Powder X-ray diffraction shows broad Pd peak and retained UiO-66-NH_(2) integrity after Pd decoration. The hydrogen uptake capacity show that UiO-66-NH_(2)-Pd exhibits best hydrogen storage performance than UiO-66-NH_(2) and pristine UiO-66. The hydrogen up taken in Pd decorated UiO-66 (UiO-66-NH_(2)-1Pd) was close to 4 wt% under 20 MPa at room temperature. Density functional theory (DFT) calculations show that hydrogen adsorption energy of UiO-66-NH_(2)-Pd was −0.5897 eV, which was much lower than that of UiO-66-NH_(2) (−0.3716 eV) and UiO-66 (−0.2975 eV). Ultimately, Pd decorated NH_(2) group functioned UiO-66 enable improve storage capacities through hydrogen spillover under ambient conditions which could satisfy the demand for sustainable energy, especially for the long-term storage energy media.

关键词： Hydrogen storage UiO-66-NH_(2) Pd decorated Spillover

Multi-modal imaging for the diagnosis of spontaneous visceral artery dissection:A case report

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 Gastrointestinal Surgery 2024年第5期16卷 1430-1435页

作者： yang Pu yan luo Department of Medical Ultrasound West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Spontaneous visceral artery dissection(SVAD)is a rare condition that affects the visceral arteries,such as the celiac,superior mesenteric,and inferior mesenteric arteries,without involving the *** ischemia or hemorrhage from vessel rupture can occur in SVAD;therefore,prompt detection and management is ***-enhanced computed tomography(CECT)has been used to diagnose most of the previous cases,but few studies have explored the potential of contrast-enhanced ultrasound(CEUS)for early detection of this *** SUMMARY A 53-year-old male presented with complaints of poor appetite and abnormal liver function for the past 6 *** had previously undergone transabdominal splenectomy,esophagogastric devascularization,and cholecystectomy for gallstones and severe portal *** ultrasound was performed in our department to assess liver *** abnormal hepatic artery spectrum was observed,and dissection involving both the celiac artery and the common hepatic artery was observed.A CEUS was then performed and clearly showed the entry site of the intimal tear and the false lumen,and dissection was subsequently confirmed by *** patient was asymptomatic;therefore,treatment to control the blood pressure was provided,and follow-up was *** 6 months of follow-up,the celiac artery was found to be dilated with an adherent thrombus visible in the wall,and the common hepatic artery was occluded with the presence of *** these findings,no significant changes in liver function were *** Multi-modal imaging is effective in diagnosing SVAD,and conservative treatment is a choice for asymptomatic patients.

关键词： Spontaneous visceral artery dissection Celiac artery dissection Contrastenhanced computed tomography Contrast-enhanced ultrasound Case report