期刊文献+
共找到13篇文章
< 1 >
每页显示 20 50 100
Cognitive impairment in patients with bipolar disorder alone versus those with bipolar disorder comorbid with borderline personality disorder
1
作者 Chao-Min Wang Hua Xue +5 位作者 Bo Xin Kun Zhang Shuo Wang Jin-Cheng Wang Cui-Xia An Na Li 《World Journal of Psychiatry》 SCIE 2024年第8期1174-1181,共8页
BACKGROUND Bipolar disorder(BD)is a severe mental illness.BD often coexists with borderline personality disorders,making the condition more complex.AIM To explore the differences in cognitive impairment between patien... BACKGROUND Bipolar disorder(BD)is a severe mental illness.BD often coexists with borderline personality disorders,making the condition more complex.AIM To explore the differences in cognitive impairment between patients with BD and those with BD comorbid with borderline personality disorder.METHODS Eighty patients with BD and comorbid borderline personality disorder and 80 patients with BD alone were included in groups A and B,respectively,and 80 healthy volunteers were included as controls.Cognitive function in each group was evaluated using the Chinese version of the repeatable battery for the assess-ment of neuropsychological status(RBANS),the Stroop color-word test,and the Wechsler intelligence scale-revised(WAIS-RC).RESULTS The indices of the RBANS,Stroop color-word test,and WAIS-RC in groups A and B were significantly lower than those of the control group(P<0.05).Group A had significantly longer Stroop color-word test times for single-character,single-color,double-character,and double-color,lower scores of immediate memory,visual breadth,verbal function dimensions and total score of the RBANS,as well as lower scores of verbal IQ,performance IQ,and overall IQ of the WAIS-RC compared with group B(P<0.05).Compared to group B,group A exhibited significantly longer single-character time,single-color time,double-character time,and double-color time in the Stroop color-word test(P<0.05).CONCLUSION The cognitive function of patients with BD complicated with borderline personality disorder is lower than that of patients with BD. 展开更多
关键词 Bipolar disorder Borderline personality disorder Cognitive impairment Chinese-version repeatable neuropsychological status test Stroop color-word test Wechsler intelligence scale
下载PDF
Relationship between repeated triaxial test and Hamburg wheel tracking test on asphalt mixtures 被引量:4
2
作者 朱浩然 杨军 +1 位作者 史啸 陆海珠 《Journal of Southeast University(English Edition)》 EI CAS 2010年第1期117-121,共5页
Both the repeated triaxial test (RTT) and the Hamburg wheel tracking test (HWTT) are adopted to evaluate the high temperature performance of the stone mastic asphalt (SMA) and the mastic asphalt (MA). The corr... Both the repeated triaxial test (RTT) and the Hamburg wheel tracking test (HWTT) are adopted to evaluate the high temperature performance of the stone mastic asphalt (SMA) and the mastic asphalt (MA). The correlation of the permanent deformations of the MA and the correlation of the deformation developments of the SMA between the two tests are analyzed, respectively. Results show that both the two tests can effectively identify the high temperature performance of mixtures, and the correlation between the final results of the two tests as well as that between the deformation developments of the two tests are excellent with R20.9. In order to further prove the correlation, viscoelastic parameters estimated from the RTT results is used to simulate the rutting development in the HWTT slabs by the finite element method (FEM). Results indicate that the correlation between the two tests is significant with errors less than 10%. It is suitable to predict the rutting development with the viscoelastic parameters obtained from the RTT. 展开更多
关键词 asphalt mixture repeated triaxial test Hamburg wheel tracking test CORRELATION high temperature performance finite element method
下载PDF
Subchronic Oral Toxicity Evaluation of Lanthanum: A 90-day, Repeated Dose Study in Rats 被引量:10
3
作者 FANG Hai Qin YU Zhou +5 位作者 ZHI Yuan FANG Jin LIChen Xi WANG Yi Mei PENG Shuang Qing JIA Xu Dongl 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2018年第5期363-375,共13页
Objective The present study was undertaken to evaluate the subchronic toxicity of lanthanum and to determine the no observed adverse effect level(NOAEL),which is a critical factor in the establishment of an acceptab... Objective The present study was undertaken to evaluate the subchronic toxicity of lanthanum and to determine the no observed adverse effect level(NOAEL),which is a critical factor in the establishment of an acceptable dietary intake(ADI).Methods In accordance with the Organization for Economic Co-operation and Development(OECD) testing guidelines,lanthanum nitrate was administered once daily by gavage to Sprague-Dawley(SD) rats at dose levels of 0,1.5,6.0,24.0,and 144.0 mg/kg body weight(BW) per day for 90 days,followed by a recovery period of 4 weeks in the 144.0 mg/kg BW per day and normal control groups.Outcome parameters were mortality,clinical symptoms,body and organ weights,serum chemistry,and food consumption,as well as ophthalmic,urinary,hematologic,and histopathologic indicators.The benchmark dose(BMD) approach was applied to estimate a point of departure for the hazard risk assessment of lanthanum.Results Significant decreases were found in the 144.0 mg/kg BW group in the growth index,including body weight,organ weights,and food consumption.This study suggests that the NOAEL of lanthanum nitrate is 24.0 mg/kg BW per day.Importantly,the 95% lower confidence value of the benchmark dose(BMDL) was estimated as 9.4 mg/kg BW per day in females and 19.3 mg/kg BW per day in males.Conclusion The present subchronic oral exposure toxicity study may provide scientific data for the risk assessment of lanthanum and other rare earth elements(REEs). 展开更多
关键词 LANTHANUM Subchronic toxicity 90-day repeated oral dose test No observed adverse effectLevel Acceptable dietary intake Benchmark dose
下载PDF
Rheological Behavior of Basalt Fiber Reinforced Asphalt Mastic 被引量:2
4
作者 顾兴宇 XU Tingting NI Fujian 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2014年第5期950-955,共6页
The characters of basalt fiber are analyzed and compared with commonly used fibers. The rheological behaviors of the basalt fiber reinforced asphalt mastic are investigated by the dynamic shear rheological tests and t... The characters of basalt fiber are analyzed and compared with commonly used fibers. The rheological behaviors of the basalt fiber reinforced asphalt mastic are investigated by the dynamic shear rheological tests and the repeated creep tests. The results show that basalt fiber has excellent reinforced performances, such as high asphalt absorption ratio, low water absorption ratio, high tensile strength, high elastic modulus and high temperature stability. The rutting factor of the fiber reinforced asphalt mastic is higher than the plain asphalt mastic and the reinforced effects are more remarkable under high temperature. The rheological performances of the asphalt mastic demonstrate a good linear relationship between different temperature and loading frequency. The creep stiffness modulus of the asphalt mastic at different loading time can be expressed by power function. Improved Burgers model is used to represent the rheological behaviors of the asphalt mastic with basalt fiber and the model parameters are estimated. 展开更多
关键词 basalt fiber asphalt mastic dynamic shear rheological test repeated creep test rheological model
下载PDF
Experimental study on permanent deformation characteristics of coarse-grained soil under repeated dynamic loading 被引量:4
5
作者 Huihao Mei Sajjad Satvati Wuming Leng 《Railway Engineering Science》 2021年第1期94-107,共14页
Practical assessment of subgrade settlement induced by train operation requires developing suitable models capable of describing permanent deformation characteristics of subgrade filling under repeated dynamic loading... Practical assessment of subgrade settlement induced by train operation requires developing suitable models capable of describing permanent deformation characteristics of subgrade filling under repeated dynamic loading.In this paper,repeated load triaxial tests were performed on coarse-grained soil(CGS),and the axial permanent strain of CGS under different confining pressures and dynamic stress amplitudes was analysed.Permanent deformation behaviors of CGS were categorized based on the variation trend of permanent strain rate with accumulated permanent strain and the shakedown theory.A prediction model of permanent deformation considering stress state and number of load cycles was established,and the ranges of parameters for different types of dynamic behaviors were also divided.The results indicated that the variational trend of permanent strain rate with accumulated permanent strain can be used as a basis for classifying dynamic behaviors of CGS.The stress state(confining pressure and dynamic stress amplitude)has significant effects on the permanent strain rate.The accumulative characteristics of permanent deformation of CGS with the number of load cycles can be described by a power function,and the model parameters can reflect the influence of confining pressure and dynamic stress amplitude.The study’s results could help deepen understanding of the permanent deformation characteristics of CGS. 展开更多
关键词 Repeated load triaxial tests Coarse grained soil Shakedown theory Dynamic stress Accumulated permanent strain Railway subgrade
下载PDF
Subchronic Oral Toxicity Evaluation of Sodium Dehydroacetate: A 90-day Repeated Dose Study in Rats 被引量:1
6
作者 FANG Jin LIU Hai Bo +7 位作者 ZHI Yuan FENG Yong Quan WANG Hui Ling CUI Wen Ming ZHANG Ji Yue WANG Hua Li YU Zhou JIA Xu Dong 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2022年第4期296-311,共16页
Objective The present study was undertaken to evaluate the subchronic oral toxicity of sodium dehydroacetate(DHA-Na)and to determine the point of departure(POD),which is a critical factor in the establishment of an ac... Objective The present study was undertaken to evaluate the subchronic oral toxicity of sodium dehydroacetate(DHA-Na)and to determine the point of departure(POD),which is a critical factor in the establishment of an acceptable dietary intake.Methods DHA-Na was administered once daily by gavage to Sprague–Dawley rats at dose levels of 0.0,31.0,62.0,and 124.0 mg/kg BW per day for 90 days,followed by a recovery period of 4 weeks in the control and 124.0 mg/kg BW per day groups.The outcome parameters were mortality,clinical observations,body weights,food consumption,hematology and clinical biochemistry,endocrine hormone levels,and ophthalmic,urinary,and histopathologic indicators.The benchmark dose(BMD)approach was applied to estimate the POD.Results Significant decreases were found in the 62.0 and 124.0 mg/kg BW groups in terms of the body weight and food utilization rate,whereas a significant increase was found in the thyroid stimulating hormone levels of the 124.0 mg/kg BW group.Importantly,the 95%lower confidence limit on the BMD of 51.7 mg/kg BW was modeled for a reduction in body weight.Conclusion The repeated-dose study indicated the slight systemic toxicity of DHA-Na at certain levels(62.0 and 124.0 mg/kg BW)after a 90-day oral exposure. 展开更多
关键词 Sodium dehydroacetate Sub-chronic toxicity 90-day repeated oral dose test Benchmark dose Point of departure
下载PDF
Contrastive study of HIV RNA detection and RIBA test in anti-HIV repeated positive donors
7
《中国输血杂志》 CAS CSCD 2001年第S1期405-,共1页
关键词 RIBA HIV Contrastive study of HIV RNA detection and RIBA test in anti-HIV repeated positive donors RNA
下载PDF
Characterisation, Analysis and Design of Hydrated Cement Treated Crushed Rock Base as a Road Base Material in Western Australia
8
作者 Peerapong Jitsangiam H. R. Nikraz K. Siripun S. Chummuneerat 《Journal of Civil Engineering and Architecture》 2012年第5期586-593,共8页
Hydrated Cement Treated Crushed Rock Base (HCTCRB) is widely used as a base course in Western Australian pavements. HCTCRB has been designed and used as a basis for empirical approaches and in empirical practices. T... Hydrated Cement Treated Crushed Rock Base (HCTCRB) is widely used as a base course in Western Australian pavements. HCTCRB has been designed and used as a basis for empirical approaches and in empirical practices. These methods are not all-encompassing enough to adequately explain the behaviour of HCTCRB in the field. Recent developments in mechanistic approaches have proven more reliable in the design and analysis of pavement, making it possible to more effectively document the characteristics of HCTCRB. The aim of this study was to carry out laboratory testing to assess the mechanical characteristics of HCTCRB. Conventional triaxial tests and repeated load triaxial tests (RLT tests) were performed. Factors affecting the performance of HCTCRB, namely hydration periods and the amount of added water were also investigated. It was found that the shear strength parameters of HCTCRB were 177 kPa for cohesion (c) and 42~ for the internal friction angle (~). The hydration period, and the water added in this investigation affected the performance of HCTCRB. However, the related trends associated with such factors could not be assessed. All HCTCRB samples showed stress-dependency behaviour. Based on the stress stages of this experiment, the resilient modulus values of HCTCRB ranged from 300 MPa to 1100 MPa. CIRCLY, a computer program based on the multi-layer elastic theory was used in the mechanistic approach to pavement design and analysis, to determine the performance of a typical pavement model using HCTCRB as a base course layer. The mechanistic pavement design parameters for HCTCRB as a base course material were then introduced. The analysis suggests that the suitable depth for HCTCRB as a base layer for WA roads is at least 185 mm for the design equivalent standard axle (ESA) of 10 million. 展开更多
关键词 Hydrated cement treated crushed rock base (HCTCRB) base course PAVEMENT repeated load triaxial (RLT) test mechanistic pavement analysis and design.
下载PDF
A Face Serum Containing Palmitoyl Tripeptide-38, Hydrolyzed Hyaluronic Acid, Bakuchiol and a Polyherbal and Vitamin Blend Improves Skin Quality
9
作者 Brett J. West Ifedayo Alabi Shixin Deng 《Journal of Cosmetics, Dermatological Sciences and Applications》 2021年第3期237-252,共16页
A face serum composed of a combination of biologically active compounds was evaluated for safety and efficacy <em>in vitro</em>, in a repeat insult patch test and in a human clinical efficacy trial. The se... A face serum composed of a combination of biologically active compounds was evaluated for safety and efficacy <em>in vitro</em>, in a repeat insult patch test and in a human clinical efficacy trial. The serum inhibited tyrosinase activity modestly, decreased collagenase activity and exhibited notable free radical scavenging activity <em>in vitro</em>. It is gentle to the skin, as the serum did not irritate the skin or produce symptoms of allergic contact dermatitis in the 55 healthy adults that participated in the repeat insult patch test. In the efficacy trial, daily application of the face serum for 30 days significantly increased skin hydration, with all 35 volunteers experiencing improvement. Substantial improvements in skin elasticity, roughness (fine lines and wrinkles), and brightness also occurred during the trial. Dermatological examination also revealed a trend for reduced comedone count with use of the serum. Self-assessment responses revealed that all volunteers experienced improvements in multiple skin quality parameters and that participant perceptions are consistent with the results of the instrumental analyses. These findings indicated that the measured improvements in skin quality are not only statistically significant but are also clinically relevant as they were great enough for users of the face serum to feel and recognize. 展开更多
关键词 Face Serum BAKUCHIOL Palmitoyl Tripeptide-38 Hyaluronic Acid Repeat Insult Patch Test Tyrosinase Collagenase Antioxidant Clinical Trial
下载PDF
Hysteresis analysis of graphene transistor under repeated test and gate voltage stress 被引量:1
10
作者 杨杰 贾昆鹏 +2 位作者 粟雅娟 陈阳 赵超 《Journal of Semiconductors》 EI CAS CSCD 2014年第9期45-49,共5页
The current transport characteristic is studied systematically based on a back-gate graphene field effect transistor, under repeated test and gate voltage stress. The interface trapped charges caused by the gate volta... The current transport characteristic is studied systematically based on a back-gate graphene field effect transistor, under repeated test and gate voltage stress. The interface trapped charges caused by the gate voltage sweep process screens the gate electric field, and results in the neutral point voltage shift between the forth and back sweep direction. In the repeated test process, the neutral point voltage keeps increasing with test times in both forth and back sweeps, which indicates the existence of interface trapped electrons residual and accumulation. In gate voltage stress experiment, the relative neutral point voltage significantly decreases with the reducing of stress voltage, especially in -40 V, which illustrates the driven-out phenomenon of trapped electrons under negative voltage stress. 展开更多
关键词 graphene FET interface trap electrical measurement repeated test STRESS
原文传递
Performances of hydrated cement treated crushed rock base for Western Australian roads 被引量:2
11
作者 Suphat Chummuneerat Peerapong Jitsangiam Hamid Nikraz 《Journal of Traffic and Transportation Engineering(English Edition)》 2014年第6期432-438,共7页
The resilient modulus (RM) of hydrated cement treated crushed rock base (HCTCRB) affected by amount of hydration periods, compaction and dryback processes was presented using repeated load triaxial tests. The rela... The resilient modulus (RM) of hydrated cement treated crushed rock base (HCTCRB) affected by amount of hydration periods, compaction and dryback processes was presented using repeated load triaxial tests. The related trends of RM corresponding to the different hydration periods still cannot be concluded. Instead, It is found that the moisture content plays more major influence on the RM performance. Higher additional water during compaction of HCTCRB, even at its optimum moisture content and induced higher dry density, led to the inferior RM performance compared to the sample without water addition. The RM of damper samples can be improved through dryback process and superior to that of the sample without water addition at the same moisture content. However, the samples withut water addition during compaction deliver the comparable RM values even its dry density is lower than the other two types. These results indicate the significant influence of moisture content to the performances of HCTCRB with regardless of the dry density. Finally, the experimental results of HCT- CRB and parent material are evaluated with the K-O model and the model recommended by Austroads. These two models provide the excellent fit of the tested results with high degree of determination. 展开更多
关键词 base course hydrated cement treated crushed rock base cement modified material repeated load triaxial test resilient modulus PAVEMENT
原文传递
Crushed rocks stabilized with organosilane and lignosulfonate in pavement unbound layers:Repeated load triaxial tests
12
作者 Diego Maria BARBIERI Inge HOFF Chun-Hsing HO 《Frontiers of Structural and Civil Engineering》 SCIE EI CSCD 2021年第2期412-424,共13页
The creation of the new“Ferry-Free Coastal Highway Route E39”in southwest Norway entails the production of a remarkable quantity of crushed rocks.These resources could be beneficially employed as aggregates in the u... The creation of the new“Ferry-Free Coastal Highway Route E39”in southwest Norway entails the production of a remarkable quantity of crushed rocks.These resources could be beneficially employed as aggregates in the unbound courses of the highway itself or other road pavements present nearby.Two innovative stabilizing agents,organosilane and lignosulfonate,can significantly enhance the key properties,namely,resilient modulus and resistance against permanent deformation,of the aggregates that are excessively weak in their natural state.The beneficial effect offered by the additives was thoroughly evaluated by performing repeated load triaxial tests.The study adopted the most common numerical models to describe these two key mechanical properties.The increase in the resilient modulus and reduction in the accumulated vertical permanent deformation show the beneficial impact of the additives.Furthermore,a finite element model was created to simulate the repeated load triaxial test by implementing nonlinear elastic and plastic constitutive relationships. 展开更多
关键词 ORGANOSILANE LIGNOSULFONATE crushed rocks pavement unbound layers repeated load triaxial test finite element analysis
原文传递
Evaluation of repeated exposure systemic toxicity test of PVC with new plasticizer on rats via dual parenteral routes
13
作者 Li Hou Chunguang Fan +3 位作者 Chenghu Liu Qiujin Qu ChunrenWang Yanping Shi 《Regenerative Biomaterials》 SCIE 2018年第1期9-14,共6页
Systemic toxicity caused by repeated exposure to both polar and nonpolar leachables of di(2-ethylhexyl)-1,2-cyclohexane plasticized polyvinyl chloride(PVC)was evaluated with dual routes of parenteral administration me... Systemic toxicity caused by repeated exposure to both polar and nonpolar leachables of di(2-ethylhexyl)-1,2-cyclohexane plasticized polyvinyl chloride(PVC)was evaluated with dual routes of parenteral administration method on rats in the study.Experimental group and control group were designed by researchers.Tail intravenous injection with 0.9%sodium chloride injection extracts and intraperitoneal injection with corn oil extracts were conducted to the experimental rats while tail intravenous injection with 0.9%sodium chloride Injection and intraperitoneal injection with corn oil were conducted to the control rats.After 14 days,blood specimens were collected for clinical pathology(hematology and clinical chemistry)analysis.Selected organs were weighed and a histopathological examination was conducted.As a result,compared with the control animals,there were no toxicity-related changes on the parameters above.The results show that the rats do not show obvious systemic toxicity reaction caused by repeated exposure with dual routes of parenteral administration method on rats after administration with both polar and nonpolar exacts of di(2-ethylhexyl)-1,2-cyclohexane plasticized PVC simultaneously up for 14 days. 展开更多
关键词 plasticized PVC repeated exposure systemic toxicity test dual routes of parenteral administration method
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部