In this work,the time development of surface enhanced Raman intensities of the vibrational modes involving the ring skeleton and the C—H motions of the pyrazine molecule as the applied voltage on the silver electrode...In this work,the time development of surface enhanced Raman intensities of the vibrational modes involving the ring skeleton and the C—H motions of the pyrazine molecule as the applied voltage on the silver electrode is shifted between -0.2 V and -0.5 V (vs.saturated calomel electrode)is reported.The observation shows that there are two processes of enhancement involved during this shift of applied voltage.One is vibrational mode dependent while the other is not.The detailed behavior of these two processes of enhancement is discussed along with the retarded response of the Helmholtz double layer structure to the change of the applied voltage on the electrode.展开更多
Alzheimer＇s disease （AD） is the most frequent cause of dementia in the western world. In clinical terms, AD is characterized by progres- sive cognitive decline that usually begins with memory impairment. As the dis...Alzheimer＇s disease （AD） is the most frequent cause of dementia in the western world. In clinical terms, AD is characterized by progres- sive cognitive decline that usually begins with memory impairment. As the disease progresses, AD inevitably affects all intellectual functions including executive functions, leading to complete dependence for basic activities of daily life and premature death.展开更多
It’s a golden season of harvest during which it was a fine autumn weather with the pale clouds and a light breeze blowing in September in Beijing. The China International Economic and Trade Arbitration Commission and...It’s a golden season of harvest during which it was a fine autumn weather with the pale clouds and a light breeze blowing in September in Beijing. The China International Economic and Trade Arbitration Commission and China Maritime Arbitration Commission held a forum of arbitrators on 26 to 28 September 2001s dealing with arbitrate work in a beautiful landscape place, Kuan Gou, a suburb in Beijing. Mr. Yu Xiaosong, the Chair- man of China Council for Promotion of International Trade/China Chamber of International Commerce, China Intemational Economic and Trade Arbitration Commission and China Maritime Arbitration Commission, gave a talk at the forum stressed that the development of arbitration cause in China should be marched with ticccccccccmes and adapted to the fast development in the situations both of home and abroad. Mr. Yu Xaosong’s talk put forward a kind of principles for the development of the arbitration cause in China, a part of which, we publish part of it here as a reference for the arbitrate circle colleagues.展开更多
The tidal data of Kushimoto and Uragami on flow path of Kuroshio from 2004 to 2005 are investigated and discussed by time-frequency methods and nonlinear methods in this paper. These analyzing methods based on mathema...The tidal data of Kushimoto and Uragami on flow path of Kuroshio from 2004 to 2005 are investigated and discussed by time-frequency methods and nonlinear methods in this paper. These analyzing methods based on mathematical science show us new findings about the tidal motion observed on Kuroshio flow path. On the time-frequency analysis, 12 hours component and 24 hours component swing during the period of 350 hours and 320 hours respectively. However, any remarkable differences or changes depending on Kuroshio flow path weren’t seen on the result of time-frequency analysis. On the nonlinear analysis, a periodical structure has seen on the mutual information of tidal difference data, while Kuroshio flow is stable. In addition, the mutual information showed a characteristic of randomness and irregularity, while Kuroshio flow is unstable. The important results brought us a new finding such as classification of tidal motion regardless of the flow path of Kuroshio.展开更多
A simulation model for phasic and phenological development of rice was developed using the scale of physiological development time, based on the ecophysiological development processes. The interaction of daily thermal...A simulation model for phasic and phenological development of rice was developed using the scale of physiological development time, based on the ecophysiological development processes. The interaction of daily thermal effectiveness, photoperiod effectiveness and intrinsic earliness(before heading), and basic filling duration factor(after heading)determined the daily physiological effectiveness, which accumulated to get physiological development time. The Beta and quadratic functions were used to describe daily thermal and photoperiod effectiveness, respectively. Five specific genetic parameters were added to adjust the genotypic differences in rice development so that all different varieties could reach the same physiological development time at a given development stage. The stages of seedling emergence, panicle initiation, heading, and maturity were validated using sowing dates under different ecological environments, with the RMSE of 1. 47, 5. 10, 4.58 and 3.37 days, respectively. The results showed that the model was not only explanatory and systematic but also accurate and applicable.展开更多
Broadleaf-Korean pine forests exhibit high species richness and distinctive species composition, which are currently becoming more dominant among natural forests in Changbai Mountains of northeastern China. Understand...Broadleaf-Korean pine forests exhibit high species richness and distinctive species composition, which are currently becoming more dominant among natural forests in Changbai Mountains of northeastern China. Understanding the ecological process of restored vegetation is quite important for ecosystem reconstruction. Distinguishing stand development stages and analyzing the dynamic spatial patterns could provide insights into significant community coexistence mechanisms. In the present study, eight permanent study areas were established according to the substituting space for time method in Changbai Mountains of north-eastern China. The optimal division method was used to quantify the successional series into different stand development stages, and the point pattern analysis method(L(r) function) was used to analyse the dynamic changes in spatial patterns and interspecific associations. Our results suggested that:(1) The stand development process was divided into five stages: the first three stages were poplar-birch secondary forests in different stages of recovery, the fourth stage was thespruce-fir mixed forest, and the last stage was the primary broadleaf-Korean pine forest;(2) The spatial pattern showed an aggregated distribution at a small scale and changed to a random distribution as the scale increased in poplar-birch secondary forests, but the spatial pattern appeared to be randomly distributed in spruce-fir mixed forest and broadleafKorean pine forest;(3) The interspecific associations between pioneer species and climax species changed from negative to positive among the different stand stages, and environmental resources were shared among these species. Interspecific differences in shade tolerance among the tree species were key determinants of forest dynamics and structure. Our study is vital to the understanding of the forest development;thus, the spatial change features should receive greater attention when forest management is being planned and restoration strategies are being developed for the Changbai Mountains.展开更多
Dear Sir,I am Dr. Huijae Lee, from the Seoul Ire Eye Clinic,Seoul, Korea. I write to present a case report of esotropia after occlusion therapy.Amblyopia can be caused by
Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by >400% during the years 2004 to 2008. Many infants spend less t...Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by >400% during the years 2004 to 2008. Many infants spend less time in the prone position nowadays and some of the risk factors for DP are as follows: less than 3 times per day for the tummy time, torticollis and slow achievement of motor milestones. There is a need for better information to the parents but also for other strategies to prevent DP. The aim of this study was to investigate the effect of a special pillow and thus to reduce pressure on the infant head. Method: infants aged zero to two months were included in the study. They were randomized to either intervention group or control group. Head shape was investigated on two occasions, on the second occasion motor development, mobility and muscle function of the neck were also investigated. The parents were asked about tummy time and sleep position. All infants were investigated by the same physical therapist, blinded to group belonging. Result: seven infants had CVAI >3.5 on the last assessment, five of these had not used any method to reduce pressure. Fishers exact test showed a tendency where infants with reduced pressure on the head had less DP (P 0.08). Paired t test showed significant decrease in CVAI for the infants who had had reduced pressure on the head (P 0.01). Among these infants the CVAI was zero for 47% in the last assessment. For the infants who had not had a reduction of pressure on the head, there was no indication of a decrease of CVAI (P 0.45), and only 12% of these infants had a CVAI that was zero in the last assessment. Conclusion: this pilot study shows that a specially designed pillow may prevent DP in young infants. However, a larger sample is needed to confirm or disprove this. The study is planned to go on until there are 200 participants.展开更多
Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by more than 400% during the years 2004 to 2008. Many infants spend ...Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by more than 400% during the years 2004 to 2008. Many infants spend less time in the prone position nowadays and some of the risk factors for DP are: tummy time less than 3 times per day, torticollis and slow achievement of motor milestones. Improved information for the parents is needed but also other strategies to prevent DP. This study is a continuum of an earlier pilot study;the aim was to investigate the effect of a pillow, designed to reduce pressure on the infant head. Method: Infants aged zero to two months were included in the study. They were randomized to either intervention group or control group. Head shape was investigated on two occasions, on the second occasion motor development, mobility and muscle function of the neck were also investigated. The parents were asked about tummy time and sleep position. All infants were investigated by the same physical therapist, blinded to group belonging. Result: Fishers exact test showed that it was more common with decreased CVAI among infants in the intervention group (P 0.001). Paired t test showed significant decrease in CVAI for the intervention group (P 0.002), but not for the control group (P 0.96). Conclusion: This study shows that a specially designed pillow can decrease DP in young infants.展开更多
以春玉米的生理生态发育过程为基础,基于作物生理发育时间恒定原理,建立了可推广应用的作物发育期模拟模型。本文充分考虑光、温、水对作物生育进程的综合影响,设计了基于气候适宜度来动态确定作物生理发育日数的算法,为模型的大范围推...以春玉米的生理生态发育过程为基础,基于作物生理发育时间恒定原理,建立了可推广应用的作物发育期模拟模型。本文充分考虑光、温、水对作物生育进程的综合影响,设计了基于气候适宜度来动态确定作物生理发育日数的算法,为模型的大范围推广应用奠定了基础。利用东北地区农业气象站2009、2010年观测资料对模型进行了分析和验证,模型运行结果与实际观测情况比较吻合,全生育期的均方根误差(root mean square error,简称RMSE)为3.8d,营养生长阶段发育期模拟结果的相关系数在0.84以上,生殖生长阶段发育期模拟结果的相关系数在0.77以上。模型生物学意义明确、精度较高、数据易获、可操作性强,能够在农业气象业务服务中应用于玉米生育进程的模拟与预测。展开更多
文摘In this work,the time development of surface enhanced Raman intensities of the vibrational modes involving the ring skeleton and the C—H motions of the pyrazine molecule as the applied voltage on the silver electrode is shifted between -0.2 V and -0.5 V (vs.saturated calomel electrode)is reported.The observation shows that there are two processes of enhancement involved during this shift of applied voltage.One is vibrational mode dependent while the other is not.The detailed behavior of these two processes of enhancement is discussed along with the retarded response of the Helmholtz double layer structure to the change of the applied voltage on the electrode.
文摘Alzheimer＇s disease （AD） is the most frequent cause of dementia in the western world. In clinical terms, AD is characterized by progres- sive cognitive decline that usually begins with memory impairment. As the disease progresses, AD inevitably affects all intellectual functions including executive functions, leading to complete dependence for basic activities of daily life and premature death.
文摘It’s a golden season of harvest during which it was a fine autumn weather with the pale clouds and a light breeze blowing in September in Beijing. The China International Economic and Trade Arbitration Commission and China Maritime Arbitration Commission held a forum of arbitrators on 26 to 28 September 2001s dealing with arbitrate work in a beautiful landscape place, Kuan Gou, a suburb in Beijing. Mr. Yu Xiaosong, the Chair- man of China Council for Promotion of International Trade/China Chamber of International Commerce, China Intemational Economic and Trade Arbitration Commission and China Maritime Arbitration Commission, gave a talk at the forum stressed that the development of arbitration cause in China should be marched with ticccccccccmes and adapted to the fast development in the situations both of home and abroad. Mr. Yu Xaosong’s talk put forward a kind of principles for the development of the arbitration cause in China, a part of which, we publish part of it here as a reference for the arbitrate circle colleagues.
文摘The tidal data of Kushimoto and Uragami on flow path of Kuroshio from 2004 to 2005 are investigated and discussed by time-frequency methods and nonlinear methods in this paper. These analyzing methods based on mathematical science show us new findings about the tidal motion observed on Kuroshio flow path. On the time-frequency analysis, 12 hours component and 24 hours component swing during the period of 350 hours and 320 hours respectively. However, any remarkable differences or changes depending on Kuroshio flow path weren’t seen on the result of time-frequency analysis. On the nonlinear analysis, a periodical structure has seen on the mutual information of tidal difference data, while Kuroshio flow is stable. In addition, the mutual information showed a characteristic of randomness and irregularity, while Kuroshio flow is unstable. The important results brought us a new finding such as classification of tidal motion regardless of the flow path of Kuroshio.
基金supported by the National Natura1 Science Foundation of China(30030090)the National 863 Program,China(2001AA245041)
文摘A simulation model for phasic and phenological development of rice was developed using the scale of physiological development time, based on the ecophysiological development processes. The interaction of daily thermal effectiveness, photoperiod effectiveness and intrinsic earliness(before heading), and basic filling duration factor(after heading)determined the daily physiological effectiveness, which accumulated to get physiological development time. The Beta and quadratic functions were used to describe daily thermal and photoperiod effectiveness, respectively. Five specific genetic parameters were added to adjust the genotypic differences in rice development so that all different varieties could reach the same physiological development time at a given development stage. The stages of seedling emergence, panicle initiation, heading, and maturity were validated using sowing dates under different ecological environments, with the RMSE of 1. 47, 5. 10, 4.58 and 3.37 days, respectively. The results showed that the model was not only explanatory and systematic but also accurate and applicable.
基金supported by the National Natural Science Foundation of China (Grant No. 31400540, 31300538)
文摘Broadleaf-Korean pine forests exhibit high species richness and distinctive species composition, which are currently becoming more dominant among natural forests in Changbai Mountains of northeastern China. Understanding the ecological process of restored vegetation is quite important for ecosystem reconstruction. Distinguishing stand development stages and analyzing the dynamic spatial patterns could provide insights into significant community coexistence mechanisms. In the present study, eight permanent study areas were established according to the substituting space for time method in Changbai Mountains of north-eastern China. The optimal division method was used to quantify the successional series into different stand development stages, and the point pattern analysis method(L(r) function) was used to analyse the dynamic changes in spatial patterns and interspecific associations. Our results suggested that:(1) The stand development process was divided into five stages: the first three stages were poplar-birch secondary forests in different stages of recovery, the fourth stage was thespruce-fir mixed forest, and the last stage was the primary broadleaf-Korean pine forest;(2) The spatial pattern showed an aggregated distribution at a small scale and changed to a random distribution as the scale increased in poplar-birch secondary forests, but the spatial pattern appeared to be randomly distributed in spruce-fir mixed forest and broadleafKorean pine forest;(3) The interspecific associations between pioneer species and climax species changed from negative to positive among the different stand stages, and environmental resources were shared among these species. Interspecific differences in shade tolerance among the tree species were key determinants of forest dynamics and structure. Our study is vital to the understanding of the forest development;thus, the spatial change features should receive greater attention when forest management is being planned and restoration strategies are being developed for the Changbai Mountains.
文摘Dear Sir,I am Dr. Huijae Lee, from the Seoul Ire Eye Clinic,Seoul, Korea. I write to present a case report of esotropia after occlusion therapy.Amblyopia can be caused by
文摘Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by >400% during the years 2004 to 2008. Many infants spend less time in the prone position nowadays and some of the risk factors for DP are as follows: less than 3 times per day for the tummy time, torticollis and slow achievement of motor milestones. There is a need for better information to the parents but also for other strategies to prevent DP. The aim of this study was to investigate the effect of a special pillow and thus to reduce pressure on the infant head. Method: infants aged zero to two months were included in the study. They were randomized to either intervention group or control group. Head shape was investigated on two occasions, on the second occasion motor development, mobility and muscle function of the neck were also investigated. The parents were asked about tummy time and sleep position. All infants were investigated by the same physical therapist, blinded to group belonging. Result: seven infants had CVAI >3.5 on the last assessment, five of these had not used any method to reduce pressure. Fishers exact test showed a tendency where infants with reduced pressure on the head had less DP (P 0.08). Paired t test showed significant decrease in CVAI for the infants who had had reduced pressure on the head (P 0.01). Among these infants the CVAI was zero for 47% in the last assessment. For the infants who had not had a reduction of pressure on the head, there was no indication of a decrease of CVAI (P 0.45), and only 12% of these infants had a CVAI that was zero in the last assessment. Conclusion: this pilot study shows that a specially designed pillow may prevent DP in young infants. However, a larger sample is needed to confirm or disprove this. The study is planned to go on until there are 200 participants.
文摘Developmental plagiocephaly (DP) has been an increasing problem since the successful “back to sleep campaign”. The referrals for DP have increased by more than 400% during the years 2004 to 2008. Many infants spend less time in the prone position nowadays and some of the risk factors for DP are: tummy time less than 3 times per day, torticollis and slow achievement of motor milestones. Improved information for the parents is needed but also other strategies to prevent DP. This study is a continuum of an earlier pilot study;the aim was to investigate the effect of a pillow, designed to reduce pressure on the infant head. Method: Infants aged zero to two months were included in the study. They were randomized to either intervention group or control group. Head shape was investigated on two occasions, on the second occasion motor development, mobility and muscle function of the neck were also investigated. The parents were asked about tummy time and sleep position. All infants were investigated by the same physical therapist, blinded to group belonging. Result: Fishers exact test showed that it was more common with decreased CVAI among infants in the intervention group (P 0.001). Paired t test showed significant decrease in CVAI for the intervention group (P 0.002), but not for the control group (P 0.96). Conclusion: This study shows that a specially designed pillow can decrease DP in young infants.
文摘以春玉米的生理生态发育过程为基础,基于作物生理发育时间恒定原理,建立了可推广应用的作物发育期模拟模型。本文充分考虑光、温、水对作物生育进程的综合影响,设计了基于气候适宜度来动态确定作物生理发育日数的算法,为模型的大范围推广应用奠定了基础。利用东北地区农业气象站2009、2010年观测资料对模型进行了分析和验证,模型运行结果与实际观测情况比较吻合,全生育期的均方根误差(root mean square error,简称RMSE)为3.8d,营养生长阶段发育期模拟结果的相关系数在0.84以上,生殖生长阶段发育期模拟结果的相关系数在0.77以上。模型生物学意义明确、精度较高、数据易获、可操作性强,能够在农业气象业务服务中应用于玉米生育进程的模拟与预测。
