The publication of the Geologic Map Series of the Moon(including Map Quadrangles of the Geologic Atlas of the Moon&Geologic Atlas of the Lunar Globe)was supported by the National Publication Foundation(China),and ...The publication of the Geologic Map Series of the Moon(including Map Quadrangles of the Geologic Atlas of the Moon&Geologic Atlas of the Lunar Globe)was supported by the National Publication Foundation(China),and was selected as part of the“13th Five-Year”National Key Publications Publishing Planning Project.The Geologic Map Series of the Moon was completed based on scientific exploration data from China’s Chang’e Project and other existing lunar geological information and research achievements.Within this mapping project,the“Three Eons and Six Periods”of the lunar time scale based on the geological evolution history of the Moon was first proposed,expressing 14 types of structure that are formed by endogenic or exogenic processes,17 types of lithology that are formed by endogenic processes,and 11 types of crater materials or formations.In addition,the technical requirements and standards for the compilation of geologic maps of the Moon were systematically formulated with independent intellectual property rights.展开更多
AIM To investigate the potential role of micro RNA-30 a(mi R-30 a) in esophageal squamous cell carcinoma(ESCC).METHODS Expression of mi R-30 a-3 p/5 p was analyzed using microarray data and fresh ESCC tissue samples. ...AIM To investigate the potential role of micro RNA-30 a(mi R-30 a) in esophageal squamous cell carcinoma(ESCC).METHODS Expression of mi R-30 a-3 p/5 p was analyzed using microarray data and fresh ESCC tissue samples. Both in vitro and in vivo assays were used to investigate the effects of mi R-30 a-3 p/5 p on ESCC cell proliferation. Furthermore,Kyoto Encyclopedia of Genes and Genomes analysis was performed to explore underlying mechanisms involved in ESCC,and then,assays were carried out to verify the potential molecular mechanism of mi R-30 a in ESCC.RESULTS Low expression of mi R-30 a-3 p/5 p was closely associated with advanced ESCC progression and poor prognosis of patients with ESCC. Knock-down of mi R-30 a-3 p/5 p promoted ESCC cell proliferation. Increased mi R-30 a-3 p/5 p expression inhibited the Wnt signaling pathway by targeting Wnt2 and Fzd2.CONCLUSION Down-regulation of mi R-30 a-3 p/5 p promotes ESCC cell proliferation by activating the Wnt signaling pathway through inhibition of Wnt2 and Fzd2.展开更多
Objective: To investigate and compare the effects of Electrothermal Bian-stone moxibustion and traditional box-moxibustion on capillary blood perfusion in the body surface. Methods: Twenty healthy subjects, 18 females...Objective: To investigate and compare the effects of Electrothermal Bian-stone moxibustion and traditional box-moxibustion on capillary blood perfusion in the body surface. Methods: Twenty healthy subjects, 18 females and 2 males, aged averagely 36 years, were enrolled in this experiment. The traditional box-moxibustion and electrothermal Bian-stone moxibustion were respectively given on the hypogastrium around Guanyuan (CV 4), and the changes of local capillary blood perfusion in the body surface were investigated with Laser Doppler Perfusion Imaging (LDPI). Results:The traditional box-moxibustion was superior to the electrothermal Bian-stone moxibustion in the transient increasing effect in whole body and the long-term increasing effect in the local area of moxibustion on capillary blood perfusion; but for both methods, the increasing effect on the capillary blood perfusion in the local area of moxibustion was same. Conclusion: Electrothermal Bian-stone moxibustion can not completely take the place of the traditional box-moxibustion; but for some disorders with local pain, they possibly have the same effects.展开更多
The spatial resolution of source data, the impact factor selection on the grid model and the size of the grid might be the main limitations of global land datasets applied on a regional scale. Quantitative studies of ...The spatial resolution of source data, the impact factor selection on the grid model and the size of the grid might be the main limitations of global land datasets applied on a regional scale. Quantitative studies of the impacts of rasterization on data accuracy can help improve data resolution and regional data accuracy. Through a case study of cropland data for Jiangsu and Anhui provinces in China, this research compared data accuracy with different data sources, rasterization methods, and grid sizes. First, we investigated the influence of different data sources on gridded data accuracy. The temporal trends of the History Database of the Global Environment （HYDE）, Chinese Historical Cropland Data （CHCD）, and Suwan Cropland Data （SWCD） datasets were more similar. However, differ- ent spatial resolutions of cropland source data in the CHCD and SWCD datasets revealed an average difference of 16.61% when provin- cial and county data were downscaled to a 10 x 10 km2 grid for comparison. Second, the influence of selection of the potential arable land reclamation rate and temperature factors, as well as the different processing methods for water factors, on accuracy of gridded datasets was investigated. Applying the reclamation rate of potential cropland to grid-processing increased the diversity of spatial distri- bution but resulted in only a slightly greater standard deviation, which increased by 4.05. Temperature factors only produced relative disparities within 10% and absolute disparities within 2 km2 over more than 90% of grid cells. For the different processing methods for water factors, the HYDE dataset distributed 70% more cropland in grid cells along riverbanks, at the abandoned Yellow River Estuary （located in Binhai County, Yancheng City, Jiangsu Province）, and around Hongze Lake, than did the SWCD dataset. Finally, we ex- plored the influence of different grid sizes. Absolute accuracy disparities by unit area for the year 2000 were within 0.1 km2 at a 1 km2 grid size, a 25% improvement over the 10 km2 grid size. Compared to the outcomes of other similar studies, this demonstrates that some model hypotheses and grid-processing methods in international land datasets are truly incongruent with actual land reclamation proc- esses, at least in China. Combining the model-based methods with historical empirical data may be a better way to improve the accuracy of regional scale datasets. Exploring methods for the above aspects improved the accuracy of historical crop/and gridded datasets for finer regional scales.展开更多
This paper introduces the complexity and particularity of tube-sphere intersection weld(J-groove weld) and establishes the mathematical model of tube-sphere intersection trajectory.Based on the characteristics of J-gr...This paper introduces the complexity and particularity of tube-sphere intersection weld(J-groove weld) and establishes the mathematical model of tube-sphere intersection trajectory.Based on the characteristics of J-groove welds,the computational process of welding gun orientation is first simplified.Then the kinematic algorithm of a welding robot is obtained according to screw theory and exponential product formula.Finally,Solidworks and SimMechanics are employed to simulate the kinematics of the welding robot,which proves the feasibility of the kinematic algorithm.展开更多
The morphology, REE geochemistry and U-Pb geochronology of zircons from quartz monzodiorite in the Sunzhuang area, Fanshi County, Shanxi Province are presented in this study. The zircon crystals can be classified into...The morphology, REE geochemistry and U-Pb geochronology of zircons from quartz monzodiorite in the Sunzhuang area, Fanshi County, Shanxi Province are presented in this study. The zircon crystals can be classified into four main types as： AB, L, S and P, and 24 subtypes such as AB4, ABs, Ls, and S3. The maximum crystallization temperature of zircon was estimated as 850℃, with the minimum of 550℃. The peak temperatures of the zircon crystallization range from 650℃ to 700℃. The abundances of Th and U in the zircon grains show large variation with the Th/U values 〉 0.4. The Th and U values also show a positive correlation in most zircons. The REE abundance of zircon in the quartz monzodiorite ranges from 280.4 ppm to 2143 ppm with an average of 856.4 ppm. The chondrite normalized zircon REE patterns show two types, one is characterized by HREE enrichment and LREE depletion with positive Ce-anomaly and negative Eu-anomaly whereas the other is HREE enriched and LREE depleted with negative Eu-anomaly but without positive Ce-anomaly, and relatively flat patterns. The LA-ICP-MS U-Pb geochronology on the zircons yields a mean age of 133-0.87 Ma. Our data on zircon morphology, composition and U-Pb geochronology reveal that the parent magma of the quartz monzodiorite which was emplaced during late Yanshanian had a mixed crust-mantle source, with crustal components dominating. The magma is inferred to have been water rich and alkaline with initial high oxygen fugacity. Post-magmatic hydrothermal activity occurred under relatively reducing conditions which was conductive for gold precipitation in the Yixingzhai gold deposit.展开更多
Objective Findings from the previous studies have suggested a relationship between ectonucleotide pyrophosphatase /phosphodiesterase 1 （ENPP‐1） or plasma cell membrane glycoprotein 1 （PC‐1） gene single nucleotid...Objective Findings from the previous studies have suggested a relationship between ectonucleotide pyrophosphatase /phosphodiesterase 1 （ENPP‐1） or plasma cell membrane glycoprotein 1 （PC‐1） gene single nucleotide polymorphism （K121Q, rs1044498） and genetic susceptibility to obesity. However, such relationship is not reproduced by some currently available studies. In this context, the present study is aimed to quantitatively analyze the association of K121Q variant with obesity in all published case‐control studies in European adult populations. Methods Published literature from PubMed, EMBASE, and ISI web of science databases were retrieved. The studies evaluating the association of ENPP1/PC1 gene K121Q polymorphism with obesity were included, in which sufficient data were presented to calculate the odds ratio （OR） with 95% confidence intervals （CIs）. Results Ten case‐control studies meeting the inclusion criteria identified a total of 24,324 subjects including 11,372 obese and 12,952 control subjects. The meta‐analysis results showed a statistically significant association of K121Q with obesity [OR （95%CI）： 1.25 （1.04‐1.52） P=0.021] under a recessive model of inheritance （QQ vs. KK＋KQ） without heterogeneity or publication bias. Conclusions The results from the present study have indicated that ENPP1/PC1 Q121 variant may increase the risk of obesity and that more well‐designed studies based on a larger population will be required to further evaluate the role of ENPP1/PC1 gene K121Q polymorphism in obesity and other related metabolic syndromes.展开更多
Fuzziness is the feature of almost all languages. Till nowmany scholars,both home and abroad,have been studying fuzziness from many aspects. In this paper,the author tries to analyze fuzzy beauty in the translation of...Fuzziness is the feature of almost all languages. Till nowmany scholars,both home and abroad,have been studying fuzziness from many aspects. In this paper,the author tries to analyze fuzzy beauty in the translation of the great literary work Outlaws of the Marsh,which is one of the four great classical works in China. The author makes comparison of the fuzzy beauty between the source language and the target language from the angle of nicknames. Through analysis,the author concludes that to some degree,the nicknames in translated work lose some fuzzy beauty,which is inevitable. As a result,translators should pay attention to the fuzzy beauty in different languages,and approach perfect translation gradually.展开更多
Reconstructing meandering paleo-channels is attracting global research attention. We implemented a novel method by comprehensively integrating migration models and sedimentary structures. Firstly, the migration archit...Reconstructing meandering paleo-channels is attracting global research attention. We implemented a novel method by comprehensively integrating migration models and sedimentary structures. Firstly, the migration architectures of the corresponding characteristics in planform and cross-sectional models were summarised as expansion, translation, expansion and translation, expansion and downstream rotation, constriction and downstream rotation, and expansion and countercurrent rotation models. Secondly, full continuous core data from 270 dense drilling wells were collected from the Daqing Oil Field in the Songliao Basin, China, providing information on rock textures, sedimentary cycles, and boundary information for the two layers being studied. Through a comprehensive analysis of dense drill cores and logging data, the abandoned channels and the initial and final channel centrelines were identified. Consequently, four profiles, including one longitudinal and three transverse sections, were constructed to reveal the cross-sectional structures and planform migration architecture. Profile interpretation revealed the evolution from the initial channel centreline to the final centreline. Using a method of rational interpolation, we were able to reconstruct the migration architecture of the meandering channels. The results showed that the average ancient bankfull width(Wc) was approximately 100 m, a single meandering belt was800 m, the radius of the curvature was 250 m, the length of the channel bend was 700 m, the average meander wavelength was 1300 m, the sinuosity was 3.0, and the annual average discharge rate was 450 m3/s. Furthermore, we compared the results from empirical equations, which verified that our reconstruction is both feasible and potentially widely applicable.展开更多
Trends in recent years have emphasized the importance of nursing leadership in China and globally.In 2020,theWorld Health Organization released State of the world’s nursing 2020:investing in education,jobs and leader...Trends in recent years have emphasized the importance of nursing leadership in China and globally.In 2020,theWorld Health Organization released State of the world’s nursing 2020:investing in education,jobs and leadership[1],specifically proposing that nursing leadership should be strengthened to enable nurses to become current and future leaders in healthcare.This report is based on the development of healthcare across the world under a comprehensive view of the overall level of human health.As the nursing profession evolves and expands,nurses play an increas-ingly essential role in promoting global human health.Nursing leadership is crucial for professional development.展开更多
Objective： The aims of this study were to estimate the prevalence of radiographic osteoarthritis （OA） and to assess the association between smoking patterns and OA prevalence in adults aged 50 years or...Objective： The aims of this study were to estimate the prevalence of radiographic osteoarthritis （OA） and to assess the association between smoking patterns and OA prevalence in adults aged 50 years or older belonging to the Shanxi province of China.Methods： A cross-sectional study in the rural regions of the Shanxi province was conducted among 2638 Chinese adults （aged ≥50 years）. Demographic characteristics and behavioral information were collected through epidemiological surveys. All participants with joint pain underwent plain radiographic examination and were diagnosed by a professional orthopedist. Associations between smoking patterns and the prevalence of OA were assessed using binary logistic regression modeling.Results： Among 2638 individuals （men, 50.3% and women, 49.7%; mean age, 61.5 years） included in the analysis, 49.8% had radiographic OA and 27.5% had knee OA. The prevalence of radiographic OA was higher in women than in men （P〈0.001）. After adjusting for potential confounding factors, there was a nonsignificant correlation between smoking and OA prevalence in the muttivariate model. Odds ratios （ORs） for all types of OA and knee OA were higher in active and passive smokers than in nonsmoking individuals after adjustments （OR 1.374; 95% confidence interval [CI] 1.049-1.802; OR 1.440; 95% CI 1.059-1.958, respectively）.Conclusions： This study showed th at smoking may not be an independent risk factor for OA; however, there was a positive correlation between active and passive smoking and OA.展开更多
BACKGROUND China’s Behavioral Risk Factor Surveillance System(BRFSS)originated from the World Bankfunded HealthⅦLoan Project in the 1990s,which conducted behavioral risk factor surveillance in seven cities and one p...BACKGROUND China’s Behavioral Risk Factor Surveillance System(BRFSS)originated from the World Bankfunded HealthⅦLoan Project in the 1990s,which conducted behavioral risk factor surveillance in seven cities and one province^([1]).Drawing on the World Health Organization’s(WHO)STEPwise approach to surveillance(STEPs)and the U.S.Behavioral Risk Factor Surveillance System(BRFSS)^([2,3]).展开更多
This article will present the result of 35 years of studies andresearch initiated by two teachers:Professor Leung KokYuen(China)and Professor Truong Thin(Vietnam).This article will briefly introduce the systems of tra...This article will present the result of 35 years of studies andresearch initiated by two teachers:Professor Leung KokYuen(China)and Professor Truong Thin(Vietnam).This article will briefly introduce the systems of traditional Chinese medicine,such as Jing(精),Xue(血),Qi(气),Shen(神)and Jin Ye(津液)compared with various systems in modern medicine.展开更多
The aim of this study was to observe the changes in monoamine and amino acid neurotransmitters in the telencephalon of rats at four functional states after exhaustive exercise and treatment with a Yang-invigorating co...The aim of this study was to observe the changes in monoamine and amino acid neurotransmitters in the telencephalon of rats at four functional states after exhaustive exercise and treatment with a Yang-invigorating compound recipe.The main components of this Chinese traditional medicine preparation included Radix Ginseng,Rhizoma Chuanxiong,Fructus Schisandrae,Cortex Cinnamomi,Cornu Cervi Pantotrichum,Radix Morindae Officinalis,and Gecko.This experiment showed that dopamine（DA）,5-hydroxyindole acetic acid（5-HIAA）,and γ-aminobutyric acid levels noticeably decreased,while DA/5-hydroxytryptamine（5-HT） increased.Furthermore,glutamate（Glu） and Glu/γ-aminobutyric acid significantly increased after 1 hour of exercise in rats in the exercise ＋ medication group.The 5-HT and 5-HT/5-HIAA levels noticeably decreased,and DA/5-HT and Glu levels showed a robust and significant increase immediately after exhaustive exercise.The 5-HT,5-HT/5-HIAA levels sharply decreased,while DA/5-HT,Glu and γ-aminobutyric acid levels increased at 12 hours after exhaustion recovery.The results prove that Chinese herbal formula for strengthening Yang can induce changes in neurotransmitters in the telencephalon of rats after exhaustive exercise during the recovery process,and further improve central nervous system function.展开更多
A new dynamic encryption application in ad-hoc networks is proposed. The advantages of this method are its being able to use the previous ciphertext as a seed of a new encryption process, rendering the encryption proc...A new dynamic encryption application in ad-hoc networks is proposed. The advantages of this method are its being able to use the previous ciphertext as a seed of a new encryption process, rendering the encryption process effective in all communication process by continuous dynamic key generation together with synchronization, and its capability to cut back on system bandages to a greater extent, which is valuable for the ad-hoc circumstance. In addition, the rationality and effectiveness of this novel encryption method have been verified by the test results.展开更多
The 2nd Qilu International Forum on Molecular Imaging will be convened from September 26 to 29,2013 in Yantai,Shandong,China.This event is jointly hosted by Binzhou Medical University,Publishing House of Chinese Journ...The 2nd Qilu International Forum on Molecular Imaging will be convened from September 26 to 29,2013 in Yantai,Shandong,China.This event is jointly hosted by Binzhou Medical University,Publishing House of Chinese Journal of Magnetic Resonance Imaging and China Strategic Alliance of Modern Medical Technology Innovation.It is a展开更多
This study aims to investigate the efficacy of journal cumulative impact factors(CIFs)and annual impact factors(AIFs)in the evaluation of science journals.We screened U.S.ophthalmological journals based on the SCI dat...This study aims to investigate the efficacy of journal cumulative impact factors(CIFs)and annual impact factors(AIFs)in the evaluation of science journals.We screened U.S.ophthalmological journals based on the SCI database by the inclusive and exclusive criteria.The CIFs and AIFs were calculated based on the citation data of the screened SCI-indexed ophthalmological journals in Web of Science ranging from 1-y to 10-y data,year by year.The peer review scores of these journals were obtained through questionnaire surveys issued to U.S.ophthalmologists,which were recognised as the golden standard for journal evaluation.The effects of CIFs and AIFs on journal evaluation were analyzed and compared,followed by the assessment of the correlation of peer review scores with journal CIFs and AIFs.We found that both AIFs and CIFs were positively correlated with the peer review score,but the correlation coefficient of CIFs with peer review score outweighed that of AIFs with peer review score in the same time window excluding 3-y and 6-y CIF.From the correlation analysis,the 7-y CIF had the strongest correlation with peer review score(r=0.706,P=0.000),so CIF at the 7-y time window was the optimum parameter with regards to U.S.ophthalmologic journal evaluation in this study.Finally,there were four journals which were indexed in Web of Science over a long time period,of which the CIFs did not grow persistently.Therefore,we thought that more attention should be paid to the cumulative citation counts made from the first year when the source items were published.The optimum time window was still a controversial issue as research areas have variable citation characteristics.展开更多
Prof.Xiaoying Jiang Director of the Chinese Nursing Journals Publishing House As time passes,a new chapter emerges.Looking back at the year 2022,under the leadership and strong support of the China Association for Sci...Prof.Xiaoying Jiang Director of the Chinese Nursing Journals Publishing House As time passes,a new chapter emerges.Looking back at the year 2022,under the leadership and strong support of the China Association for Science and Technology(CAST)and the Chinese Nursing Association,the Chinese Nursing Journals Publishing House,with its original aspirations,has always insisted on serving the overall national construction and development of nursing disciplines.展开更多
文摘The publication of the Geologic Map Series of the Moon(including Map Quadrangles of the Geologic Atlas of the Moon&Geologic Atlas of the Lunar Globe)was supported by the National Publication Foundation(China),and was selected as part of the“13th Five-Year”National Key Publications Publishing Planning Project.The Geologic Map Series of the Moon was completed based on scientific exploration data from China’s Chang’e Project and other existing lunar geological information and research achievements.Within this mapping project,the“Three Eons and Six Periods”of the lunar time scale based on the geological evolution history of the Moon was first proposed,expressing 14 types of structure that are formed by endogenic or exogenic processes,17 types of lithology that are formed by endogenic processes,and 11 types of crater materials or formations.In addition,the technical requirements and standards for the compilation of geologic maps of the Moon were systematically formulated with independent intellectual property rights.
基金Supported by the Youth Fund of the First Affiliated Hospital of Xinxiang Medical University(Type A-4)
文摘AIM To investigate the potential role of micro RNA-30 a(mi R-30 a) in esophageal squamous cell carcinoma(ESCC).METHODS Expression of mi R-30 a-3 p/5 p was analyzed using microarray data and fresh ESCC tissue samples. Both in vitro and in vivo assays were used to investigate the effects of mi R-30 a-3 p/5 p on ESCC cell proliferation. Furthermore,Kyoto Encyclopedia of Genes and Genomes analysis was performed to explore underlying mechanisms involved in ESCC,and then,assays were carried out to verify the potential molecular mechanism of mi R-30 a in ESCC.RESULTS Low expression of mi R-30 a-3 p/5 p was closely associated with advanced ESCC progression and poor prognosis of patients with ESCC. Knock-down of mi R-30 a-3 p/5 p promoted ESCC cell proliferation. Increased mi R-30 a-3 p/5 p expression inhibited the Wnt signaling pathway by targeting Wnt2 and Fzd2.CONCLUSION Down-regulation of mi R-30 a-3 p/5 p promotes ESCC cell proliferation by activating the Wnt signaling pathway through inhibition of Wnt2 and Fzd2.
基金supported by China Academy of Chinese Medical Sciences
文摘Objective: To investigate and compare the effects of Electrothermal Bian-stone moxibustion and traditional box-moxibustion on capillary blood perfusion in the body surface. Methods: Twenty healthy subjects, 18 females and 2 males, aged averagely 36 years, were enrolled in this experiment. The traditional box-moxibustion and electrothermal Bian-stone moxibustion were respectively given on the hypogastrium around Guanyuan (CV 4), and the changes of local capillary blood perfusion in the body surface were investigated with Laser Doppler Perfusion Imaging (LDPI). Results:The traditional box-moxibustion was superior to the electrothermal Bian-stone moxibustion in the transient increasing effect in whole body and the long-term increasing effect in the local area of moxibustion on capillary blood perfusion; but for both methods, the increasing effect on the capillary blood perfusion in the local area of moxibustion was same. Conclusion: Electrothermal Bian-stone moxibustion can not completely take the place of the traditional box-moxibustion; but for some disorders with local pain, they possibly have the same effects.
基金Under the auspices of National Natural Science Foundation of China(No.41471156,41501207)the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA05080102)Special Fund of National Science and Technology of China(No.2014FY130500)
文摘The spatial resolution of source data, the impact factor selection on the grid model and the size of the grid might be the main limitations of global land datasets applied on a regional scale. Quantitative studies of the impacts of rasterization on data accuracy can help improve data resolution and regional data accuracy. Through a case study of cropland data for Jiangsu and Anhui provinces in China, this research compared data accuracy with different data sources, rasterization methods, and grid sizes. First, we investigated the influence of different data sources on gridded data accuracy. The temporal trends of the History Database of the Global Environment （HYDE）, Chinese Historical Cropland Data （CHCD）, and Suwan Cropland Data （SWCD） datasets were more similar. However, differ- ent spatial resolutions of cropland source data in the CHCD and SWCD datasets revealed an average difference of 16.61% when provin- cial and county data were downscaled to a 10 x 10 km2 grid for comparison. Second, the influence of selection of the potential arable land reclamation rate and temperature factors, as well as the different processing methods for water factors, on accuracy of gridded datasets was investigated. Applying the reclamation rate of potential cropland to grid-processing increased the diversity of spatial distri- bution but resulted in only a slightly greater standard deviation, which increased by 4.05. Temperature factors only produced relative disparities within 10% and absolute disparities within 2 km2 over more than 90% of grid cells. For the different processing methods for water factors, the HYDE dataset distributed 70% more cropland in grid cells along riverbanks, at the abandoned Yellow River Estuary （located in Binhai County, Yancheng City, Jiangsu Province）, and around Hongze Lake, than did the SWCD dataset. Finally, we ex- plored the influence of different grid sizes. Absolute accuracy disparities by unit area for the year 2000 were within 0.1 km2 at a 1 km2 grid size, a 25% improvement over the 10 km2 grid size. Compared to the outcomes of other similar studies, this demonstrates that some model hypotheses and grid-processing methods in international land datasets are truly incongruent with actual land reclamation proc- esses, at least in China. Combining the model-based methods with historical empirical data may be a better way to improve the accuracy of regional scale datasets. Exploring methods for the above aspects improved the accuracy of historical crop/and gridded datasets for finer regional scales.
基金Supported by National Natural Science Foundation of China (No. 50975195)Tianjin Research Program of Application Foundation and Advanced Technology (No. 10JCYBJC06500)
文摘This paper introduces the complexity and particularity of tube-sphere intersection weld(J-groove weld) and establishes the mathematical model of tube-sphere intersection trajectory.Based on the characteristics of J-groove welds,the computational process of welding gun orientation is first simplified.Then the kinematic algorithm of a welding robot is obtained according to screw theory and exponential product formula.Finally,Solidworks and SimMechanics are employed to simulate the kinematics of the welding robot,which proves the feasibility of the kinematic algorithm.
基金supported by the Key Program of National Natural Science Foundation of China (Grand No.90914002)the China State Administrative Office of Ore-Prospecting Project for Critical Mines (Grant No.20089937)+1 种基金Nuclear energy research project:study on Sandstone-type uranium deposits prediction technology in Junggar superimposed large basin (Grant No.DH1142)the Introducing Talents of Discipline to Universities Program (B07011)
文摘The morphology, REE geochemistry and U-Pb geochronology of zircons from quartz monzodiorite in the Sunzhuang area, Fanshi County, Shanxi Province are presented in this study. The zircon crystals can be classified into four main types as： AB, L, S and P, and 24 subtypes such as AB4, ABs, Ls, and S3. The maximum crystallization temperature of zircon was estimated as 850℃, with the minimum of 550℃. The peak temperatures of the zircon crystallization range from 650℃ to 700℃. The abundances of Th and U in the zircon grains show large variation with the Th/U values 〉 0.4. The Th and U values also show a positive correlation in most zircons. The REE abundance of zircon in the quartz monzodiorite ranges from 280.4 ppm to 2143 ppm with an average of 856.4 ppm. The chondrite normalized zircon REE patterns show two types, one is characterized by HREE enrichment and LREE depletion with positive Ce-anomaly and negative Eu-anomaly whereas the other is HREE enriched and LREE depleted with negative Eu-anomaly but without positive Ce-anomaly, and relatively flat patterns. The LA-ICP-MS U-Pb geochronology on the zircons yields a mean age of 133-0.87 Ma. Our data on zircon morphology, composition and U-Pb geochronology reveal that the parent magma of the quartz monzodiorite which was emplaced during late Yanshanian had a mixed crust-mantle source, with crustal components dominating. The magma is inferred to have been water rich and alkaline with initial high oxygen fugacity. Post-magmatic hydrothermal activity occurred under relatively reducing conditions which was conductive for gold precipitation in the Yixingzhai gold deposit.
文摘Objective Findings from the previous studies have suggested a relationship between ectonucleotide pyrophosphatase /phosphodiesterase 1 （ENPP‐1） or plasma cell membrane glycoprotein 1 （PC‐1） gene single nucleotide polymorphism （K121Q, rs1044498） and genetic susceptibility to obesity. However, such relationship is not reproduced by some currently available studies. In this context, the present study is aimed to quantitatively analyze the association of K121Q variant with obesity in all published case‐control studies in European adult populations. Methods Published literature from PubMed, EMBASE, and ISI web of science databases were retrieved. The studies evaluating the association of ENPP1/PC1 gene K121Q polymorphism with obesity were included, in which sufficient data were presented to calculate the odds ratio （OR） with 95% confidence intervals （CIs）. Results Ten case‐control studies meeting the inclusion criteria identified a total of 24,324 subjects including 11,372 obese and 12,952 control subjects. The meta‐analysis results showed a statistically significant association of K121Q with obesity [OR （95%CI）： 1.25 （1.04‐1.52） P=0.021] under a recessive model of inheritance （QQ vs. KK＋KQ） without heterogeneity or publication bias. Conclusions The results from the present study have indicated that ENPP1/PC1 Q121 variant may increase the risk of obesity and that more well‐designed studies based on a larger population will be required to further evaluate the role of ENPP1/PC1 gene K121Q polymorphism in obesity and other related metabolic syndromes.
基金the staged achievement of the project of the 2013-2016 Sichuan Education Department(No.:13JGZ20)funded by the program of the excellent scientific research and innovation team of Chengdu University of Technology
文摘Fuzziness is the feature of almost all languages. Till nowmany scholars,both home and abroad,have been studying fuzziness from many aspects. In this paper,the author tries to analyze fuzzy beauty in the translation of the great literary work Outlaws of the Marsh,which is one of the four great classical works in China. The author makes comparison of the fuzzy beauty between the source language and the target language from the angle of nicknames. Through analysis,the author concludes that to some degree,the nicknames in translated work lose some fuzzy beauty,which is inevitable. As a result,translators should pay attention to the fuzzy beauty in different languages,and approach perfect translation gradually.
基金supported by the National Natural Science Foundation of China (No. 41372125)National Science and Technology Major Project (No. 2016ZX05063002-006)
文摘Reconstructing meandering paleo-channels is attracting global research attention. We implemented a novel method by comprehensively integrating migration models and sedimentary structures. Firstly, the migration architectures of the corresponding characteristics in planform and cross-sectional models were summarised as expansion, translation, expansion and translation, expansion and downstream rotation, constriction and downstream rotation, and expansion and countercurrent rotation models. Secondly, full continuous core data from 270 dense drilling wells were collected from the Daqing Oil Field in the Songliao Basin, China, providing information on rock textures, sedimentary cycles, and boundary information for the two layers being studied. Through a comprehensive analysis of dense drill cores and logging data, the abandoned channels and the initial and final channel centrelines were identified. Consequently, four profiles, including one longitudinal and three transverse sections, were constructed to reveal the cross-sectional structures and planform migration architecture. Profile interpretation revealed the evolution from the initial channel centreline to the final centreline. Using a method of rational interpolation, we were able to reconstruct the migration architecture of the meandering channels. The results showed that the average ancient bankfull width(Wc) was approximately 100 m, a single meandering belt was800 m, the radius of the curvature was 250 m, the length of the channel bend was 700 m, the average meander wavelength was 1300 m, the sinuosity was 3.0, and the annual average discharge rate was 450 m3/s. Furthermore, we compared the results from empirical equations, which verified that our reconstruction is both feasible and potentially widely applicable.
文摘Trends in recent years have emphasized the importance of nursing leadership in China and globally.In 2020,theWorld Health Organization released State of the world’s nursing 2020:investing in education,jobs and leadership[1],specifically proposing that nursing leadership should be strengthened to enable nurses to become current and future leaders in healthcare.This report is based on the development of healthcare across the world under a comprehensive view of the overall level of human health.As the nursing profession evolves and expands,nurses play an increas-ingly essential role in promoting global human health.Nursing leadership is crucial for professional development.
基金supported by the National Natural Science Foundation of China(Nos.81573245 and 81102198)Shanxi Provincial Health and Family Planning Commission Projects(No.2014169)Undergraduate Programs for Innovation and Entrepreneurship of Shanxi Medical University(No.20171050)
文摘Objective： The aims of this study were to estimate the prevalence of radiographic osteoarthritis （OA） and to assess the association between smoking patterns and OA prevalence in adults aged 50 years or older belonging to the Shanxi province of China.Methods： A cross-sectional study in the rural regions of the Shanxi province was conducted among 2638 Chinese adults （aged ≥50 years）. Demographic characteristics and behavioral information were collected through epidemiological surveys. All participants with joint pain underwent plain radiographic examination and were diagnosed by a professional orthopedist. Associations between smoking patterns and the prevalence of OA were assessed using binary logistic regression modeling.Results： Among 2638 individuals （men, 50.3% and women, 49.7%; mean age, 61.5 years） included in the analysis, 49.8% had radiographic OA and 27.5% had knee OA. The prevalence of radiographic OA was higher in women than in men （P〈0.001）. After adjusting for potential confounding factors, there was a nonsignificant correlation between smoking and OA prevalence in the muttivariate model. Odds ratios （ORs） for all types of OA and knee OA were higher in active and passive smokers than in nonsmoking individuals after adjustments （OR 1.374; 95% confidence interval [CI] 1.049-1.802; OR 1.440; 95% CI 1.059-1.958, respectively）.Conclusions： This study showed th at smoking may not be an independent risk factor for OA; however, there was a positive correlation between active and passive smoking and OA.
基金supported by the National Key R&D Program[2018YFC1311702,2018YFC1311706]。
文摘BACKGROUND China’s Behavioral Risk Factor Surveillance System(BRFSS)originated from the World Bankfunded HealthⅦLoan Project in the 1990s,which conducted behavioral risk factor surveillance in seven cities and one province^([1]).Drawing on the World Health Organization’s(WHO)STEPwise approach to surveillance(STEPs)and the U.S.Behavioral Risk Factor Surveillance System(BRFSS)^([2,3]).
文摘This article will present the result of 35 years of studies andresearch initiated by two teachers:Professor Leung KokYuen(China)and Professor Truong Thin(Vietnam).This article will briefly introduce the systems of traditional Chinese medicine,such as Jing(精),Xue(血),Qi(气),Shen(神)and Jin Ye(津液)compared with various systems in modern medicine.
基金Science and Technology Project of Shandong Province, No. 032050117
文摘The aim of this study was to observe the changes in monoamine and amino acid neurotransmitters in the telencephalon of rats at four functional states after exhaustive exercise and treatment with a Yang-invigorating compound recipe.The main components of this Chinese traditional medicine preparation included Radix Ginseng,Rhizoma Chuanxiong,Fructus Schisandrae,Cortex Cinnamomi,Cornu Cervi Pantotrichum,Radix Morindae Officinalis,and Gecko.This experiment showed that dopamine（DA）,5-hydroxyindole acetic acid（5-HIAA）,and γ-aminobutyric acid levels noticeably decreased,while DA/5-hydroxytryptamine（5-HT） increased.Furthermore,glutamate（Glu） and Glu/γ-aminobutyric acid significantly increased after 1 hour of exercise in rats in the exercise ＋ medication group.The 5-HT and 5-HT/5-HIAA levels noticeably decreased,and DA/5-HT and Glu levels showed a robust and significant increase immediately after exhaustive exercise.The 5-HT,5-HT/5-HIAA levels sharply decreased,while DA/5-HT,Glu and γ-aminobutyric acid levels increased at 12 hours after exhaustion recovery.The results prove that Chinese herbal formula for strengthening Yang can induce changes in neurotransmitters in the telencephalon of rats after exhaustive exercise during the recovery process,and further improve central nervous system function.
基金Sponsored byNational Nature Science Foundation of China(60236010)Teaching and Research Awardfor Outstanding Teachersin Higher Education Insitutions of Ministry of Education of China
文摘A new dynamic encryption application in ad-hoc networks is proposed. The advantages of this method are its being able to use the previous ciphertext as a seed of a new encryption process, rendering the encryption process effective in all communication process by continuous dynamic key generation together with synchronization, and its capability to cut back on system bandages to a greater extent, which is valuable for the ad-hoc circumstance. In addition, the rationality and effectiveness of this novel encryption method have been verified by the test results.
文摘The 2nd Qilu International Forum on Molecular Imaging will be convened from September 26 to 29,2013 in Yantai,Shandong,China.This event is jointly hosted by Binzhou Medical University,Publishing House of Chinese Journal of Magnetic Resonance Imaging and China Strategic Alliance of Modern Medical Technology Innovation.It is a
文摘This study aims to investigate the efficacy of journal cumulative impact factors(CIFs)and annual impact factors(AIFs)in the evaluation of science journals.We screened U.S.ophthalmological journals based on the SCI database by the inclusive and exclusive criteria.The CIFs and AIFs were calculated based on the citation data of the screened SCI-indexed ophthalmological journals in Web of Science ranging from 1-y to 10-y data,year by year.The peer review scores of these journals were obtained through questionnaire surveys issued to U.S.ophthalmologists,which were recognised as the golden standard for journal evaluation.The effects of CIFs and AIFs on journal evaluation were analyzed and compared,followed by the assessment of the correlation of peer review scores with journal CIFs and AIFs.We found that both AIFs and CIFs were positively correlated with the peer review score,but the correlation coefficient of CIFs with peer review score outweighed that of AIFs with peer review score in the same time window excluding 3-y and 6-y CIF.From the correlation analysis,the 7-y CIF had the strongest correlation with peer review score(r=0.706,P=0.000),so CIF at the 7-y time window was the optimum parameter with regards to U.S.ophthalmologic journal evaluation in this study.Finally,there were four journals which were indexed in Web of Science over a long time period,of which the CIFs did not grow persistently.Therefore,we thought that more attention should be paid to the cumulative citation counts made from the first year when the source items were published.The optimum time window was still a controversial issue as research areas have variable citation characteristics.
文摘Prof.Xiaoying Jiang Director of the Chinese Nursing Journals Publishing House As time passes,a new chapter emerges.Looking back at the year 2022,under the leadership and strong support of the China Association for Science and Technology(CAST)and the Chinese Nursing Association,the Chinese Nursing Journals Publishing House,with its original aspirations,has always insisted on serving the overall national construction and development of nursing disciplines.
