In recent years, the agroclimatic investigations have been made at various temporal and spatial scales in mountainous and hilly regions, and so have the adaptability tests on the crop ecoclimate. A large quantity of r...In recent years, the agroclimatic investigations have been made at various temporal and spatial scales in mountainous and hilly regions, and so have the adaptability tests on the crop ecoclimate. A large quantity of reliable and representative data are obtained. Through the synthetic studies on ' belt' , ' layer' , ' topography' and 'ecological-type' in mountainy and hilly regions, climate with agriculture ard zonality with non-zonality are closely combined to show the similarities and differences of agroclimatic resources at various layers and with different topography types in mountainy and hilly regions. A general review is given in this paper.展开更多
The practice of stimulating follicular develop-ment by Shen-invigorating herbs is directed by tra-ditional Chinese medical theories of“the Shenstores essence of life and governs reproduction”
From 2010 to 2012, geologists at the Institute of Karst Geology the Chinese Academy of Geological Sciences carried out the ＂Chinese Geological Carbon Sink Projects Research＂. They did investigation and research work...From 2010 to 2012, geologists at the Institute of Karst Geology the Chinese Academy of Geological Sciences carried out the ＂Chinese Geological Carbon Sink Projects Research＂. They did investigation and research work according to three aspects of carbon sink： karst, soil, and mineral, and achieved important results.展开更多
Objective To study the clinical issues of progressive epidural hematoma ( PEDH ) Methods The incidence,impacts on clinical course and short term outcomes and predictors of PEDH were retrospectively studied. Results PE...Objective To study the clinical issues of progressive epidural hematoma ( PEDH ) Methods The incidence,impacts on clinical course and short term outcomes and predictors of PEDH were retrospectively studied. Results PEDH occurred in 20. 3% of the patients. The rates of neurological deterioration and展开更多
The feasibility study of the Beijing Tau-Charm Factory(BTCF), approved by the Chinese government to have been completing from February of 1995 to the end of 1996, has been carried out successfully by the Institute of ...The feasibility study of the Beijing Tau-Charm Factory(BTCF), approved by the Chinese government to have been completing from February of 1995 to the end of 1996, has been carried out successfully by the Institute of High-Energy Physics (IHEP) under the CAS.Also this is a cooperative project shared by seven Chinese institutions of Peking University,the CAS Institute of Theoretical Physics,Nanjing University,Shandong University,Shanghai Jiaotong University, Qinghua University and the CAS-affiliated University of S&T of China. The main tasks of this study are:展开更多
The present investigation is concerned with the reaction of barium and iron nitrates mixtures using three different molar ratios, 1:1 (Ⅰ), 1:2 (Ⅱ) and 2:1 (Ⅲ) at different temperatures as pointed out from the DTA d...The present investigation is concerned with the reaction of barium and iron nitrates mixtures using three different molar ratios, 1:1 (Ⅰ), 1:2 (Ⅱ) and 2:1 (Ⅲ) at different temperatures as pointed out from the DTA data. The reaction products exhibit 12 compounds namely, Ba(NO3)2, αFe2O3, Fe3O4, BaFeO3, BaFeO2.9, hexagonal BaFeO3-x, tetragonal BaFeO3-x, BaFe2O4, αBaFe2O4, Ba2Fe6O11, Ba5Fe14O26 and BaFe12O19. The formation of these products depend on the molar ratio between the reactants and the reaction temperature. The reaction products were studied by DTA and TG techniques and characterized by X-ray diffraction patterns, magnetic susceptibility data and scanning electron microscopy, SEM.展开更多
Seismotectonics is one of the new research areas of seismology with its main focus on studying the detailed seismic structure of lithosphere and upper mantle using seismic records, particularly the records collected a...Seismotectonics is one of the new research areas of seismology with its main focus on studying the detailed seismic structure of lithosphere and upper mantle using seismic records, particularly the records collected at portable seismic arrays. Development of new seismic methods utilizing seismic arrays such as receiver functions, SKS-splitting analysis, body- and surface-wave tomography, and recently ambient noise tomography （Langston, 1977; Dueker and Sheehan, 1997;展开更多
Akey national research project on major climate damage has scored important achievements, a spokesman announced at a phased review conference of the project held from October 8 to 13, 2000 in Beijing. Located in the E...Akey national research project on major climate damage has scored important achievements, a spokesman announced at a phased review conference of the project held from October 8 to 13, 2000 in Beijing. Located in the East Asian monsoon area where the interannual variation is great, China suffers a展开更多
Acomprehensive experiment on shallow water acoustics with the inseparable combination of the acoustical and oceanographic means, which is uncommon internationally, was conducted successfully in the Far Yellow Sea by a...Acomprehensive experiment on shallow water acoustics with the inseparable combination of the acoustical and oceanographic means, which is uncommon internationally, was conducted successfully in the Far Yellow Sea by a group of Chinese and U.S. scientists from August 21 to September 1,1996. The basic task of ocean acoustic research is to study the interaction between sound wave and ocean media, which includes exploring the laws of influence due to spatial and temporal variability of the ocean environment, such as ocean surface waves,inhomogeneity of sea water and sea bottom struc-展开更多
The practice of evidence-based medicine （EBM） in recent years has spurred the increased study of the peri-operative period （POP） and has won acclaim. At present, surgeons fully recognize the importance of the POP ...The practice of evidence-based medicine （EBM） in recent years has spurred the increased study of the peri-operative period （POP） and has won acclaim. At present, surgeons fully recognize the importance of the POP and are enthusiastically immersing themselves actively into itsresearch.展开更多
NATURAL materials, which possess annual lamination and record annually climatic or environmental changes, can be termed 'natural clocks'. They include tree rings, coral layers, varves, ice layers, and laminate...NATURAL materials, which possess annual lamination and record annually climatic or environmental changes, can be termed 'natural clocks'. They include tree rings, coral layers, varves, ice layers, and laminated speleothems which were reported only in the last few years. The growth layer rhythm in stalagmites is related to high-frequency and short-term climatic oscillations. The luminescent density of annual layers of stalagmites is the signal of environmental changes. The organic matter contained in drip展开更多
Recent progress in the studies of anticancer drugs originating from plants in China is reviewed in this paper. Guided by the experience of traditional Chinese medicine (TCM), several new anticancer drugs have been fou...Recent progress in the studies of anticancer drugs originating from plants in China is reviewed in this paper. Guided by the experience of traditional Chinese medicine (TCM), several new anticancer drugs have been found. Indirubin from indigofera tinctoria (青黛) is useful for the treatment of chronic myelocytic leukemia. On the basis of structure-activity relationship studies of these compounds, a second generation drug (N-methyl isoindigotin) has been developed. Clinical studies demonstrated that it is more effective than indirubin, 1O-hydroxy campothecin derived from Camptotheca acuminata (喜树) have exhibited definite activity on rodent tumors and it is used for phase Ⅱ studies. Iris latea pallasi Fischer var. Chinensis (马蔺子) may serve as展开更多
Hyperlipidemia （HLP） is the No.1 risk factor for patients with atherosclerosis （AS） and is directly related to the occurrence of coronary artery disease （CAD） and cerebrovascular disease. Therefore, prevention a...Hyperlipidemia （HLP） is the No.1 risk factor for patients with atherosclerosis （AS） and is directly related to the occurrence of coronary artery disease （CAD） and cerebrovascular disease. Therefore, prevention and treatment of AS is of great importance and of practical significance in controlling the incidence and mortality of CAD. With its peculiar syndrome-dependent therapy, traditional Chinese medicine （TCM） has accumulated abundant practical experiences in this field and good clinical effects have been achieved. Chinese herbal medicine, with its particularly unique advantages and high potentials yet to be tapped, displays its huge strength in HLP prevention and treatment. The progress of studies concerning prevention and treatment of HLP by Chinese herbal medicines, in the form of monomers or compound recipes, is reviewed in this paper.展开更多
The major basic research project, "Solar Activity and Terrestrial Effects: Observations and Research in the Maximum of Solar Cycle 23" (STORM23) has promoted close collaborations in multiple branches of ... The major basic research project, "Solar Activity and Terrestrial Effects: Observations and Research in the Maximum of Solar Cycle 23" (STORM23) has promoted close collaborations in multiple branches of natural sciences, such as astronomy, space science and geo-science, in China.……展开更多
The crystallization of polymers has been one of the major topics in polymer physics. Spherulites are common crystalline structures observed in semi-crystalline polymers. Many studies[1-5] have been performed to invest...The crystallization of polymers has been one of the major topics in polymer physics. Spherulites are common crystalline structures observed in semi-crystalline polymers. Many studies[1-5] have been performed to investigate the detailed structures and formation mechanisms. It is generally accepted that the three-dimensional geometry of spherulites develops from a stack of lamellae. During the growth process, the stacked lamellae splay apart continually and branch occasionally[6.7]. However, there are many unanswered questions. For example, what is a pri-展开更多
文摘In recent years, the agroclimatic investigations have been made at various temporal and spatial scales in mountainous and hilly regions, and so have the adaptability tests on the crop ecoclimate. A large quantity of reliable and representative data are obtained. Through the synthetic studies on ' belt' , ' layer' , ' topography' and 'ecological-type' in mountainy and hilly regions, climate with agriculture ard zonality with non-zonality are closely combined to show the similarities and differences of agroclimatic resources at various layers and with different topography types in mountainy and hilly regions. A general review is given in this paper.
文摘The practice of stimulating follicular develop-ment by Shen-invigorating herbs is directed by tra-ditional Chinese medical theories of“the Shenstores essence of life and governs reproduction”
文摘From 2010 to 2012, geologists at the Institute of Karst Geology the Chinese Academy of Geological Sciences carried out the ＂Chinese Geological Carbon Sink Projects Research＂. They did investigation and research work according to three aspects of carbon sink： karst, soil, and mineral, and achieved important results.
文摘Objective To study the clinical issues of progressive epidural hematoma ( PEDH ) Methods The incidence,impacts on clinical course and short term outcomes and predictors of PEDH were retrospectively studied. Results PEDH occurred in 20. 3% of the patients. The rates of neurological deterioration and
文摘The feasibility study of the Beijing Tau-Charm Factory(BTCF), approved by the Chinese government to have been completing from February of 1995 to the end of 1996, has been carried out successfully by the Institute of High-Energy Physics (IHEP) under the CAS.Also this is a cooperative project shared by seven Chinese institutions of Peking University,the CAS Institute of Theoretical Physics,Nanjing University,Shandong University,Shanghai Jiaotong University, Qinghua University and the CAS-affiliated University of S&T of China. The main tasks of this study are:
文摘The present investigation is concerned with the reaction of barium and iron nitrates mixtures using three different molar ratios, 1:1 (Ⅰ), 1:2 (Ⅱ) and 2:1 (Ⅲ) at different temperatures as pointed out from the DTA data. The reaction products exhibit 12 compounds namely, Ba(NO3)2, αFe2O3, Fe3O4, BaFeO3, BaFeO2.9, hexagonal BaFeO3-x, tetragonal BaFeO3-x, BaFe2O4, αBaFe2O4, Ba2Fe6O11, Ba5Fe14O26 and BaFe12O19. The formation of these products depend on the molar ratio between the reactants and the reaction temperature. The reaction products were studied by DTA and TG techniques and characterized by X-ray diffraction patterns, magnetic susceptibility data and scanning electron microscopy, SEM.
文摘Seismotectonics is one of the new research areas of seismology with its main focus on studying the detailed seismic structure of lithosphere and upper mantle using seismic records, particularly the records collected at portable seismic arrays. Development of new seismic methods utilizing seismic arrays such as receiver functions, SKS-splitting analysis, body- and surface-wave tomography, and recently ambient noise tomography （Langston, 1977; Dueker and Sheehan, 1997;
文摘Akey national research project on major climate damage has scored important achievements, a spokesman announced at a phased review conference of the project held from October 8 to 13, 2000 in Beijing. Located in the East Asian monsoon area where the interannual variation is great, China suffers a
文摘Acomprehensive experiment on shallow water acoustics with the inseparable combination of the acoustical and oceanographic means, which is uncommon internationally, was conducted successfully in the Far Yellow Sea by a group of Chinese and U.S. scientists from August 21 to September 1,1996. The basic task of ocean acoustic research is to study the interaction between sound wave and ocean media, which includes exploring the laws of influence due to spatial and temporal variability of the ocean environment, such as ocean surface waves,inhomogeneity of sea water and sea bottom struc-
文摘The practice of evidence-based medicine （EBM） in recent years has spurred the increased study of the peri-operative period （POP） and has won acclaim. At present, surgeons fully recognize the importance of the POP and are enthusiastically immersing themselves actively into itsresearch.
文摘NATURAL materials, which possess annual lamination and record annually climatic or environmental changes, can be termed 'natural clocks'. They include tree rings, coral layers, varves, ice layers, and laminated speleothems which were reported only in the last few years. The growth layer rhythm in stalagmites is related to high-frequency and short-term climatic oscillations. The luminescent density of annual layers of stalagmites is the signal of environmental changes. The organic matter contained in drip
文摘Recent progress in the studies of anticancer drugs originating from plants in China is reviewed in this paper. Guided by the experience of traditional Chinese medicine (TCM), several new anticancer drugs have been found. Indirubin from indigofera tinctoria (青黛) is useful for the treatment of chronic myelocytic leukemia. On the basis of structure-activity relationship studies of these compounds, a second generation drug (N-methyl isoindigotin) has been developed. Clinical studies demonstrated that it is more effective than indirubin, 1O-hydroxy campothecin derived from Camptotheca acuminata (喜树) have exhibited definite activity on rodent tumors and it is used for phase Ⅱ studies. Iris latea pallasi Fischer var. Chinensis (马蔺子) may serve as
基金Supported by the Natural Science Foundation of Zhejiang Province(No. Y204269)Chinese Medicine Foundation of Zhejiang Province(No.2005C004)
文摘Hyperlipidemia （HLP） is the No.1 risk factor for patients with atherosclerosis （AS） and is directly related to the occurrence of coronary artery disease （CAD） and cerebrovascular disease. Therefore, prevention and treatment of AS is of great importance and of practical significance in controlling the incidence and mortality of CAD. With its peculiar syndrome-dependent therapy, traditional Chinese medicine （TCM） has accumulated abundant practical experiences in this field and good clinical effects have been achieved. Chinese herbal medicine, with its particularly unique advantages and high potentials yet to be tapped, displays its huge strength in HLP prevention and treatment. The progress of studies concerning prevention and treatment of HLP by Chinese herbal medicines, in the form of monomers or compound recipes, is reviewed in this paper.
文摘 The major basic research project, "Solar Activity and Terrestrial Effects: Observations and Research in the Maximum of Solar Cycle 23" (STORM23) has promoted close collaborations in multiple branches of natural sciences, such as astronomy, space science and geo-science, in China.……
基金This work was supported by the National Natural Science Foundation of China the Hong Kong Government Research Grants Council Joint Research Scheme (Grant Nos. 20131160730 +1 种基金 NJHKUST 618/01) the National Natural Science Foundation of China (Grant N
文摘The crystallization of polymers has been one of the major topics in polymer physics. Spherulites are common crystalline structures observed in semi-crystalline polymers. Many studies[1-5] have been performed to investigate the detailed structures and formation mechanisms. It is generally accepted that the three-dimensional geometry of spherulites develops from a stack of lamellae. During the growth process, the stacked lamellae splay apart continually and branch occasionally[6.7]. However, there are many unanswered questions. For example, what is a pri-
