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Leaf Volatiles from Host Tree Acer negundo : Diurnal Rhythm and Behavior Responses of Anoplophora glabripennis to Volatiles in Field 被引量:8
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作者 李建光 金幼菊 +2 位作者 骆有庆 许志春 陈华君 《Acta Botanica Sinica》 CSCD 2003年第2期177-182,共6页
The volatile compounds from ash-leaf maple (Acer negundo L.) were examined by adsorption-thermodesorption and GC-MS. Thirty-two compounds, including alcohols, ketones, aldehydes, esters, terpenoids, carboxylic acids, ... The volatile compounds from ash-leaf maple (Acer negundo L.) were examined by adsorption-thermodesorption and GC-MS. Thirty-two compounds, including alcohols, ketones, aldehydes, esters, terpenoids, carboxylic acids, etc. were identified. The analysis revealed that the diurnal rhythm of release of volatile compounds from maple differed in July and in August. In July, the releasing of most volatile compounds reached the peak at 14 o'clock, when in August, the emission of volatile compounds reached the peak at 10 o'clock. Besides diurnal rhythm, there also existed other differences in the releasing of volatiles and their relative contents in July and in August. A possible explanation for this phenomenon is the maturation of leaves, since the sampling conditions were the same both in July and August. At the same time, the response of Anoplophora glabrpennis Motschulsky to volatiles was examined with field bioassay with traps. cis-3-hexen-1-ol was found to be more effective to attract A. glabrpennis than other volatiles released by ash-leaf maple tree in field trapping test. A mixture of 1-butanol, 1-pentanol and 2-pentanol was tested to be the most attractive to A. glabripennis among all tested volatiles. More field trapping tests should be conducted. 展开更多
关键词 Acer negundo Anoplophora glabtipennis VOLATILE diurnal rhythm behavioral response
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Effect of Nonlinear Geometric Behavior on Random Response of Rotational Shell
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作者 高世桥 Niemann H J 《Journal of Beijing Institute of Technology》 EI CAS 2001年第1期23-28,共6页
Aimed at the large deformation problem of industry cooling tower shell, the mathematical model for the random response of rotational shell under the external random excitation is established by statistic perturbation ... Aimed at the large deformation problem of industry cooling tower shell, the mathematical model for the random response of rotational shell under the external random excitation is established by statistic perturbation method. The effect of nonlinear geometric behavior on the response of rotational shell is analyzed. 展开更多
关键词 nonlinear behavior random response rotational shell cooling tower
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Electrophysiological and Behavioral Responses of Adult Anoplophom glabripennis (Motschulsky) to Volatile Components of Host-Plant 被引量:13
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作者 Fan Hui Li Jiquan Jin YoujuCollege of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, P. R. China 《Forestry Studies in China》 CAS 2003年第1期25-29,共5页
Electrophysiological and behavioral responses of adult A. glabripennis (Motsch.) to volatiles from ashleaf maple (Acer negundo L.) were investigated to identify semiochemicals involved in host location. Measurable ele... Electrophysiological and behavioral responses of adult A. glabripennis (Motsch.) to volatiles from ashleaf maple (Acer negundo L.) were investigated to identify semiochemicals involved in host location. Measurable electroantennogram (BAG) responses were elicited to all compounds tested, the most effective antennal stimulants were trans-2-hexen-1-al,decyl aldehyde and trans-2-hexenl-ol.These profiles were similar between males and females. In Y-tube olfactometer bioassays, above three compounds with certain concentration, trans-2-hexen-l-al (1%), trans-2-hexen-l-ol (1%) and decyl aldehyde (10%), were significantly attractive to the adults in laboratory. The results show that either BAG or olfactory responding to a particular volatile compound are markedly influenced by the concentration. 展开更多
关键词 electroantennogram activity behavioral response host-plant volatile Anoplophora glabripennis
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Effects of different pull-out loading rates on mechanical behaviors and acoustic emission responses of fully grouted bolts 被引量:4
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作者 DU Yun-lou FENG Guo-rui +2 位作者 KANG Hong-pu ZHANG Yu-jiang ZHANG Xi-hong 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第7期2052-2066,共15页
Due to the influence of mining disturbance stress,it is of great significance to better understand the bearing characteristics of fully grouted bolts under different pull-out loading rates.For this purpose,a series of... Due to the influence of mining disturbance stress,it is of great significance to better understand the bearing characteristics of fully grouted bolts under different pull-out loading rates.For this purpose,a series of laboratory pull-out tests were conducted to comprehensively investigate the effects of different pull-out loading rates on the mechanical performance and failure characteristics of fully grouted bolts.The results show that the mechanical performance of the anchored specimen presents obvious loading rate dependence and shear enhancement characteristics.With the increase of the pull-out loading rates,the maximum pull-out load increases,the displacement and time corresponding to the maximum pull-out load decrease.The accumulated acoustic emission(AE)counts,AE energy and AE events all decrease with the increase of the pull-out loading rates.The AE peak frequency has obvious divisional distribution characteristics and the amplitude is mainly distributed between 50-80 dB.With the increase of the pull-out loading rates,the local strain of the anchoring interface increases and the failure of the anchoring interface transfers to the interior of the resin grout.The accumulated AE counts are used to evaluate the damage parameter of the anchoring interface during the whole pull-out process.The analytical results are in good agreement with the experimental results.The research results may provide guidance for the support design and performance monitoring of fully grouted bolts. 展开更多
关键词 fully grouted bolts pull-out test loading rate mechanical behavior AE response failure characteristic
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Effect Evaluation of Cognitive Behavioral Intervention on Stress Response in Breast Cancer Patients 被引量:1
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作者 Ping Huang You Li +6 位作者 Linqiu Fu Xiangling Jiang Juncheng Guo Yijun Yang Chunru Wang Yunwang Cai Min Guo 《Journal of Behavioral and Brain Science》 2019年第3期121-129,共9页
Objective: To investigate the effects of cognitive behavioral intervention on psychological stress response in breast cancer patients by cognitive behavioral intervention in breast cancer patients. Methods: Adopting t... Objective: To investigate the effects of cognitive behavioral intervention on psychological stress response in breast cancer patients by cognitive behavioral intervention in breast cancer patients. Methods: Adopting the random comparison method, 100 patients with breast cancer were divided into comparison group and intervention group by 50 cases. The intervention group underwent cognitive behavioral intervention at the same time as the comparison group only received conventional treatment without cognitive behavioral intervention. Two groups of breast cancer patients were enrolled in the general questionnaire, the Self-Rating Anxiety Scale (SAS), and the Medical Coping Modes Questionnaire (MCMQ) within one week after admission and one month after treatment to understand the psychological stress levels of the two groups. Results: There was no significant difference in the scores of SAS and MCMQ between the intervention group and the comparison group before intervention (P > 0.05). But after intervention, the scores of SAS and MCMQ in the comparison group were significantly higher than those in the intervention group (P 0.05). It shows that the implementation of cognitive behavioral intervention therapy for breast cancer patients has the effect of improving their psychological status. Conclusion: Cognitive behavioral intervention therapy combined with psychology for breast cancer patients can effectively reduce their stress level, improve mental health status and improve their positive coping ability. 展开更多
关键词 COGNITIVE behaviorAL THERAPY BREAST Cancer Stress response COPING Style
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Loss of behavioral stress response in blind cavefish reduces energy expenditure 被引量:1
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作者 Jiang-Hui Zhang Rui Long +5 位作者 Yang-Yang Jing Pan Zhang Yuan Xu Wei Xiong Yan-Qiu Zhu Yi-Ping Luo 《Zoological Research》 SCIE CSCD 2023年第4期678-692,共15页
The stress response is essential for animal self-defense and survival. However, species may exhibit stress response variation depending on their specific environmental and selection pressures. Blind cavefish dwell in ... The stress response is essential for animal self-defense and survival. However, species may exhibit stress response variation depending on their specific environmental and selection pressures. Blind cavefish dwell in cave environments, which differ markedly in stressors and resource availability compared to surface aquatic environments. However, whether blind cavefish exhibit differences in stress response as an adaptation to their cave environments remains unclear. Here, we investigated differences in stress response in six closely related Triplophysa species, including three blind cavefish (T. longibarbata, T. jiarongensis, and T. rosa) and three normal-sighted river fish (T. nasobarbatula, T. dongsaiensis, and T. bleekeri). Results showed that blind cavefish exhibited a range of distinct behavioral responses compared to sighted river fish, including greater levels of activity, shorter duration of freezing, absence of erratic movements or thrashing behavior, and opposite behavioral trends over time. Furthermore, the cavefish species demonstrated attenuated increases in metabolic rate in response to stressors related to novel environments. Cave-dwelling T. rosa also exhibited lower basal hypothalamic-pituitary-inter-renal (HPI) axis-related gene expression levels and stress hormone concentrations compared to river-dwelling T. bleekeri. These results suggest that blind cavefish may have lost their behavioral stress response, potentially mediated by a reduction in basal activity of the HPI axis, thus enabling the conservation of energy by reducing unnecessary expenditure in energy-limited caves. 展开更多
关键词 CAVEFISH Stress responses behavior Metabolic rate
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Evaluating Hazard Response Behavior of a Driver Using Physiological Signals and Car-Handling Indicators in a Simulated Driving Environment
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作者 Joseph Kamau Muguro Minoru Sasaki Kojiro Matsushita 《Journal of Transportation Technologies》 2019年第4期439-449,共11页
Road traffic accidents are a major cause of casualties and costly implications to all the stakeholders. Research focusing on the driver as one of the causal agent of accidents has been studied for centuries and with t... Road traffic accidents are a major cause of casualties and costly implications to all the stakeholders. Research focusing on the driver as one of the causal agent of accidents has been studied for centuries and with the advent of modernized driver assistance technologies. This paper sought to evaluate response of a driver using active-driving performance indicators like reaction time and physiological signal response (surface electromyogram), to understand hazard response behavior. Simulation of driving scenes was done using Unity3D engine and VR Head mounted display. The driver was presented with stimulus (collision objects) of different size and distance. From the results, an event scene that the driver considered hazardous was marked with increased electromyography response distinct from non-event scenes. From the results, we noted an increase in pedal misapplication during hazard response. The proposed approach is applicable in a real time driving analysis for on-road risk level classification. 展开更多
关键词 SEMG DRIVER response behavior 3D-VR HAZARD response
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Urban residents'behavioral response to climate change and its influencing factors:A case study of Tianjin,China
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作者 Yong Liu Mengyu Zhang 《Chinese Journal of Population,Resources and Environment》 2020年第3期188-195,共8页
Climate change is a global issue that poses a significant risk to the global economy and therefore warrants coordinated collective action.Employing a questionnaire survey in China,this study presents urban residents&#... Climate change is a global issue that poses a significant risk to the global economy and therefore warrants coordinated collective action.Employing a questionnaire survey in China,this study presents urban residents'behavioral response to climate change and its influencing factors.The results indicated that urban residents in Tianjin often took low-cost,intuitive,and quickly implementable actions,namely behavioral coping responses.Proactive adaptive behavior was also evident,which involved greater financial investment.Furthermore,according to regression analysis results of urban residents'behavior and its influencing factors,knowledge of climate change manifested a positive correlation with urban residents'behavioral coping response.In contrast,cost manifested a negative correlation with urban residents'proactive adaptive behavior,which was a more complex,costly,and challenging anticipatory action.Knowledge of climate change manifested a positive correlation with both behavioral coping response and proactive adaptive behavior.Finally,recommendations for encouraging beneficial behaviors among urban residents are suggested. 展开更多
关键词 Climate change behavioral coping response Proactive adaptive behavior
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Organizational Data Breach:Building Conscious Care Behavior in Incident Response
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作者 Adlyn Adam Teoh Norjihan Binti Abdul Ghani +3 位作者 Muneer Ahmad Nz Jhanjhi Mohammed A.Alzain Mehedi Masud 《Computer Systems Science & Engineering》 SCIE EI 2022年第2期505-515,共11页
Organizational and end user data breaches are highly implicated by the role of information security conscious care behavior in respective incident responses.This research study draws upon the literature in the areas o... Organizational and end user data breaches are highly implicated by the role of information security conscious care behavior in respective incident responses.This research study draws upon the literature in the areas of information security,incident response,theory of planned behaviour,and protection motivation theory to expand and empirically validate a modified framework of information security conscious care behaviour formation.The applicability of the theoretical framework is shown through a case study labelled as a cyber-attack of unprecedented scale and sophistication in Singapore’s history to-date,the 2018 SingHealth data breach.The single in-depth case study observed information security awareness,policy,experience,attitude,subjective norms,perceived behavioral control,threat appraisal and self-efficacy as emerging prominently in the framework’s applicability in incident handling.The data analysis did not support threat severity relationship with conscious care behaviour.The findings from the above-mentioned observations are presented as possible key drivers in the shaping information security conscious care behaviour in real-world cyber incident management. 展开更多
关键词 End user computing organizational behavior incident response data breach computer emergency response team cyber-attack
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Effect of Cognitive Behavioral Intervention on Stress Response of Nurses with PTSD in Operating Room
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作者 Yi Huang Yajuan Ke +4 位作者 Hongying Zhu Yunsuo Gao Duozhi Wu Qiu Cai Juncheng Guo 《World Journal of Neuroscience》 2021年第1期8-16,共9页
<strong>Objective:</strong><span style="font-family:;" "=""> To investigate the effect of cognitive behavioral intervention on nurses with PTSD by using cognitive behavioral ... <strong>Objective:</strong><span style="font-family:;" "=""> To investigate the effect of cognitive behavioral intervention on nurses with PTSD by using cognitive behavioral intervention. <b>Methods:</b> The subjects were selected by randomized control method, and the PTSD nurses were divided into control group (n = 30) and intervention group (n = 30). The intervention group used cognitive behavioral intervention;the control group did not use cognitive behavioral intervention. Nurses with PTSD in the two groups com</span><span style="font-family:Verdana;"></span><span style="font-family:;" "="">pleted the basic situation survey, medical coping questionnaire (MCMQ) and anxiety self-rating form (SAS) psychological scale one month later. <b>Results:</b> There was no significant difference in MCMQ and SAS scores between the two groups before intervention (P > 0.05). After intervention, the scores of MCMQ and SAS in the intervention group were compared with the scores of MOCQ and SAS in the control group. The scores of the control group after intervention were significantly higher than those of the intervention group, with statistical significance (P < 0.05). There were statistically significant differences in MCMQ and SAS in the intervention group before and after intervention (P < 0.05). There was no statistical significance in the control group before and after intervention (P > 0.05). It shows that cognitive behavioral intervention therapy has the effect and value of improving the psychological status of nurses with PTSD. <b>Conclusion:</b> Cognitive behavioral intervention therapy combined with psychology for nurses with PTSD can effectively relieve their stress level, relieve their mood, and improve their positive coping ability and work efficiency.</span> 展开更多
关键词 Stress response Cognitive behavioral Therapy Operating Room Nurse Men-tal Health
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ANOMALOUS BEHAVIOR REVISITED:DYNAMIC RESPONSE OF ELASTIC-PLASTIC STRUCTURES 被引量:7
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作者 Xi, F Yang, JL Li, ZL 《Acta Mechanica Solida Sinica》 SCIE EI 1998年第4期283-294,共12页
Based on the minimum principle of acceleration in the elastic-plastic continua under finite def ormation, the dynamic response of an elastic-perfectly plastic pin-ended beam subjected to rectangular impulse loading is... Based on the minimum principle of acceleration in the elastic-plastic continua under finite def ormation, the dynamic response of an elastic-perfectly plastic pin-ended beam subjected to rectangular impulse loading is studied with the help of a numerical approach. The calculated results once again show the anomalous behavior of the beam during its response process, which was previously found in [1]. By carefully analyzing the instantaneous distribution of the bending moment, the membrane force, the curvature and displacement during the response process, it is concluded that the interactive effect between the geometry and materials nonlinearities of the structure is the key reason for leading to the anomalous behavior. This will be helpful for clarifying some misunderstandings in explaining the problem before. 展开更多
关键词 finite deformation minimum principle of acceleration dynamic elastic-plastic response bending moment distribution anomalous behavior
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Theoretical and numerical research on the dynamic launch response of carbon fiber composite cartridges
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作者 Ruijie Zhang Hui Xu +2 位作者 Chenlei Huang Kun Liu Zhilin Wu 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第3期426-436,共11页
Understanding the dynamic response of composite material cartridges during the firing process is of great significance for improving their reliability and safety.A theoretical model describing the dynamic response of ... Understanding the dynamic response of composite material cartridges during the firing process is of great significance for improving their reliability and safety.A theoretical model describing the dynamic response of composite material cartridges is established based on the thick-walled cylinder theory and rate-dependent constitutive model of composite materials.The correctness of the theoretical model is validated through finite element simulations of cartridge deformation.The influence of chamber pressure and cartridge wall thickness on the cartridge's deformation process and stress distribution is analyzed.The results indicate that the primary deformation of composite material cartridges inside the chamber is elastic deformation.Compared to metal cartridges,composite material cartridges require higher pressure for touching-chamber and are more prone to developing gaps after unloading to ensure smooth extraction.During the deformation process,the touching-chamber behavior of the cartridge can improve the stress distribution.Under the same chamber pressure,the touching-chamber behavior can reduce the circumferential stress by approximately 30%.The inner wall surface of the cartridge is a critical area that requires attention.The touching-chamber behavior can be facilitated by appropriately reducing the cartridge wall thickness while ensuring overall strength.This study can provide guidance for the optimization design of composite material cartridges. 展开更多
关键词 Composite material cartridges Dynamic response Thick-walled cylinder theory Finite element simulation Toughing-chamber behavior
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The Effect of Other Customer Perceptions onStore Attitude and Behavioral Response in Fashion Store
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作者 Yuhua Cui Jishun Niu 《经济管理学刊(中英文版)》 2017年第1期27-31,共5页
关键词 行为 顾客 时尚 反应 实验目的 社会科学 吸引力 物理
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Advances in research on responsive feeding and children's eating behaviors
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作者 Ya-Ni Zhou Ya-Nan Zhou Xu Song 《Nursing Communications》 2024年第4期1-5,共5页
Background:Given that the formation of eating behaviors in childhood is largely dependent on parental feeding,it is necessary to consider eating behaviors along with feeding behaviors when exploring child nutrition.Re... Background:Given that the formation of eating behaviors in childhood is largely dependent on parental feeding,it is necessary to consider eating behaviors along with feeding behaviors when exploring child nutrition.Responsive feeding can not only promote the development of self-regulation ability,prevent overweight and obesity,and develop healthy dietary behaviors but also enhance the psychosocial ability,cognitive ability,and language ability of infants.it is of great significance for the growth and development of infants to identify whether the feeding behavior of caregivers is responsive feeding as early as possible.Methods:The progress of the literature summarizes the relevant concepts,evaluation tools,and the relationship between responsive feeding and dietary behavior.Results:This is a fact that China lacks the unified response feeding definition and responsive feeding evaluation tools suitable for homes in China.The relationship between responsive feeding and dietary behavior is in the stage of infancy,and systematic response feeding and dietary behavior have not been formed.Conclusion:It is time to pay attention to the dietary behavior of Chinese children.Intervening measures such as promoting the application of responsive feeding should be actively carry out,accordingly,childhood obesity can be prevented. 展开更多
关键词 responsive feeding CHILDREN dietary behavior REVIEW
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Nonlinear Stochastic Response of Rotational Shell Under the Action of Stationary Strong Wind Loads
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作者 高世桥 Niemann H J 《Journal of Beijing Institute of Technology》 EI CAS 2001年第1期29-33,共5页
Based on the theoretical analysis of nonlinear random response of structure, for the engineering practical problem, that is, the large deformation of industry cooling tower shell structure under the action of strong w... Based on the theoretical analysis of nonlinear random response of structure, for the engineering practical problem, that is, the large deformation of industry cooling tower shell structure under the action of strong wind loads, the statistic perturbation method is also used to analyze some statistic characteristics of the nonlinear random response of rotational shell with geometric nonlinearity and stationary strong wind load considered. Through computation, some average values of nornal displacements and the nonlinear effect factor of the cooling tower shell are given. 展开更多
关键词 nonlinear behavior random response rotational shell cooling tower
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Differences in the behavior characteristics between Daphnia magna and Japanese madaka in an on-line biomonitoring system 被引量:7
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作者 Zongming Ren Zijian Wang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2010年第5期703-708,共6页
It is important to select suitable organisms to adapt the requirement of different environment monitoring purposes.Following our previous study,the behavioral responses of Daphnia magna and Japanese madaka (Oryzias l... It is important to select suitable organisms to adapt the requirement of different environment monitoring purposes.Following our previous study,the behavioral responses of Daphnia magna and Japanese madaka (Oryzias latipes) were investigated and compared under flow-through conditions in an on-line biomonitoring system.The results showed that both D.magna and Japanese madaka had similar biological clock,but the circadian rhythms of Japanese madaka was more clearly recorded than that of D.magna.And the sensitivity of D.magna was about two orders of magnitudes higher than that of Japanese madaka in different types of toxic chemicals (dichlorovos,deltamethrin and cadmium chloride).However,when both animals were used in an on-line biomonitoring system,the life span of D.magna was less than 7 days and Japanese madaka could last for more than one month without feeding.Therefore,D.magna was proposed to be a more sensitive bioindicator and was suitable for short term monitoring the pollution events at concentration level closing to the water quality standard,while Japanese madaka was more suitable for the long-term monitoring for accidental discharges. 展开更多
关键词 Daphnia magna Japanese madaka on-line biomonitoring behavioral responses
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Physiology and defense responses of wheat to the infestation of different cereal aphids 被引量:2
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作者 LIU Fang-hua KANG Zhi-wei +3 位作者 TAN Xiao-ling FAN Yong-liang TIAN Hong-gang LIU Tongxian 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2020年第6期1464-1474,共11页
Cereal aphids are major insect pests of wheat,which cause significant damages to wheat production.Previous studies mainly focused on the resista nee of differe nt wheat varieties to one specific aphid species.However,... Cereal aphids are major insect pests of wheat,which cause significant damages to wheat production.Previous studies mainly focused on the resista nee of differe nt wheat varieties to one specific aphid species.However,reports on the physiology and defense responses of wheat to different cereal aphids are basically lacking.In this work,we studied the feeding behavior of three cereal aphids:the grain aphid,Sitobion avenae(Fabricius),the greenbugs,Schizaphis graminum(Ron dani),and the bird cherry-oat aphid,Rhopalosiphum padi(Linn aeus)on win ter wheat,and the physiology and defense responses of wheat to the infestation of these cereal aphids with focus on how these cereal aphids utilize divergent strategies to optimize their nutrition requirement from wheat leaves.Our results indicated that S.graminum and R.padi were better adapted to penetrating phloem tissue and to collect more nutrition than S.avenae.The harm on wheat physiology committed by S.graminum and R.padi was severer than that by S.avenae,through reducing chlorophyll concentration and interfering metabolism genes.Furthermore,cereal aphids manipulated the plant nutrition metabolism by increasing the relative concentration of major amino acids and percentage of essential amino acids.In addition,different cereal aphids triggered specific defense response in wheat.All of these results suggested that different cereal aphids utilize diverge nt strategies to cha nge the physiological and defe nse resp on ses of their host plants in order to optimize their nutriti on absorption and requireme nt.These fin dings not only exte nd our current knowledge on the insect-pla nt in teractions but also provide useful clues to develop no vel biotech no logical strategies for enhancing the resistance and toleranee of crop plants against phloem-feeding insects. 展开更多
关键词 CEREAL APHIDS FEEDING behavior NUTRITION PHYSIOLOGY defense response
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Effect of Process Parameters on the Agglomeration Behavior and Tensile Response of Graphene Reinforced Magnesium Matrix Composites Based on Molecular Dynamics Model
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作者 Chentong Zhao Jiming Zhou +2 位作者 Xujiang Chao Su Wang Lehua Qi 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第12期2453-2469,共17页
The mechanical properties of graphene reinforced composites are often hampered by challenges related to the dispersion and aggregation of graphene within the matrix.This paper explores the mechanism of cooling rate,pr... The mechanical properties of graphene reinforced composites are often hampered by challenges related to the dispersion and aggregation of graphene within the matrix.This paper explores the mechanism of cooling rate,process temperature,and process pressure’s influence on the agglomeration behavior of graphene and the tensile response of composites from a computer simulation technology,namely molecular dynamics.Our findings reveal that the cooling rate exerts minimal influence on the tensile response of composites.Conversely,processing temperature significantly affects the degree of graphene aggregation,with higher temperatures leading to the formation of larger-sized graphene clusters.In contrast,processing pressure exhibits negligible impact on the degree of graphene aggregation,and increasing pressure effectively mitigates the formation of large-sized graphene clusters.Moreover,we elucidate the intrinsic factors governing the mechanical response to variations in processing parameters.Notably,we observe that the stretching process facilitates the decomposition of large-sized graphene clusters into smaller ones.This research contributes to the advancement of lightweight metal matrix composites by offering insights into optimizing processing parameters.Additionally,it provides crucial theoretical underpinnings for developing high-performance graphene-reinforced composites. 展开更多
关键词 Agglomeration behavior GNPs/Mg composite tensile response molecular dynamics
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Response to Pain by Different Gestational Age Neonates
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作者 夏传雄 杨磊 +1 位作者 赵萍 张小铭 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2002年第1期84-86,共3页
One hundred infants were divided into the following 3 gestational age (GA) groups: (Ⅰ) premature infants ( n =30) with the gestational age between 29 and 32 weeks; (Ⅱ) premature infants ( n =30) with the gestati... One hundred infants were divided into the following 3 gestational age (GA) groups: (Ⅰ) premature infants ( n =30) with the gestational age between 29 and 32 weeks; (Ⅱ) premature infants ( n =30) with the gestational age between 33 and 36 weeks; (Ⅲ) full term infants ( n =40). The recorded responses of all infants to pain included the behavioral responses to painful stimuli (cry, facial activity and limbs movement) and the variety of heart rate. The results indicated that the infants of 3 groups had different degree response to various painful stimuli. Pain expression in full term infants was more significant than premature infants to same stimuli. 33 weeks GA infants were differential from 29 weeks GA infants. Full term infants showed more vertical mouth stretch and more taut tongue and more hand to mouth than premature infants, but more horizontal mouth stretch in premature infants. 展开更多
关键词 full term infants premature infants PAIN behavioral response
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Restraint Induces Sickness Responses Independent of Injection with Epstein-Barr Virus (EBV)-Encoded dUTPase
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作者 Taryn G. Aubrecht Bachir Abi Salloum +5 位作者 Maria Eugenia Ariza Marshall Williams Brenda Reader Ronald Glaser John Sheridan Randy J. Nelson 《Journal of Behavioral and Brain Science》 2014年第11期491-505,共15页
Most adult humans have been infected by Epstein-Barr virus (EBV), a putative cause of chronic fatigue syndrome, and carry latent EBV. The EBV-encoded dUTPase can induce sickness responses in mice and chronic stress ex... Most adult humans have been infected by Epstein-Barr virus (EBV), a putative cause of chronic fatigue syndrome, and carry latent EBV. The EBV-encoded dUTPase can induce sickness responses in mice and chronic stress exacerbates this response. Because individuals often adapt to chronic stress, we tested the hypothesis that acute restraint stress would potentiate these sickness responses elicited by EBV-encoded dUTPase. Male CD-1 mice were injected daily for one or three days with either saline or EBV-encoded dUTPase. Additionally, mice from each condition were either restrained for three hours daily or left undisturbed during the light phase when mice are inactive. Restraint decreased weight gain during the one- and three-day experiments. Restraint in saline injected mice increased anxiety-like behavior in the open field during the three-day experiment. There were no behavioral differences during the one-day experiment. Restraint stress had no effect when experienced acutely on one day, but did produce a sickness response after three days of exposure regardless of saline or dUTPase injection. In contrast to the effects of chronic stress and EBV-encoded dUTPase on the sickness response, acute stress did not affect sickness responses in association with EBV-encoded dUTPase. Thus, dUTPase does not appear to provoke the same sickness responses after acute stress as compared to chronic stress. 展开更多
关键词 EPSTEIN-BARR Virus RESTRAINT Stress SICKNESS response Anxiety-Like and Depressive-Like behaviors
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