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A rapid analysis method to discover antioxidant active components and mechanisms in soybean:untargeted metabolomics combined with network pharmacology and spectrum-effect relationship-component knockout-identification techniques
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作者 Xuqiang Liu Xinjing Meng +3 位作者 Dongqi Liu Junshang Liu Mengqi Lan Wenyi Kang 《Food Science and Human Wellness》 2025年第9期3753-3763,共11页
Soybean is widely used in diets,and numerous reports have highlighted its antioxidant properties.However,constructing a methodology for rapid identifying and predicting a series of antioxidant active ingredients in So... Soybean is widely used in diets,and numerous reports have highlighted its antioxidant properties.However,constructing a methodology for rapid identifying and predicting a series of antioxidant active ingredients in Soybean presents certain challenges.Therefore,we introduced the spectrum-effect relationship-ingredient knockout identification technique to identify a series of antioxidant active ingredients in soybean.By combining untargeted metabolomics with network pharmacology,we predicted the antioxidant active ingredients and their target sites.We successfully identified 4 antioxidant active compounds(daidzein,genistein,daidzein,and glycitin)and 10 corresponding antioxidant targets(epidermal growth factor receptor(EGFR),estrogen receptor 1(ESR1),steroid receptor coactivator(SRC),tumor necrosis factor(TNF),kinase insert domain receptor(KDR),AKT serine/threonine kinase 1(AKT1),growth factor receptor bound protein 2(GRB2),signal transducer and activator of transcription1(STAT1),mitogen-activated protein kinase 8(MAPK8),B-cell lymphoma-2(BCL2))by our analysis.The validation results from cell experiments revealed that glycitin exhibited the best antioxidant activity and significantly influenced the expression of EGFR and the proteins associated with nuclear factor erythroid 2-related factor 2/NAD(P)H quinone dehydrogenase 1(NRF2/NQO1)signaling pathways.These findings were consistent with the predicted outcomes and were further confirmed in a zebrafish model.It suggests that glycitin may exert antioxidant effects by regulating the expression of EGFR,NRF2,and NQO1 proteins.The results demonstrate that a rapid analytical method for determining antioxidant activity was established. 展开更多
关键词 SOYBEAN ANTIOXIDANT Metabolomics Network pharmacology spectrum-effect relationship
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In situ Studies of Electrochemical Energy Conversion and Storage Technologies:From Materials,Intermediates,and Products to Surroundings
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作者 Xing Chen Yu-Lin Sun +2 位作者 Xiu-Mei Lin Jin-Chao Dong Jian-Feng Li 《Nano-Micro Letters》 2026年第5期746-797,共52页
Escalating global energy demands and climate urgency necessitate advanced electrochemical energy conversion and storage technologies(EECSTs)like electrocatalysis and rechargeable batteries.Improving their performance ... Escalating global energy demands and climate urgency necessitate advanced electrochemical energy conversion and storage technologies(EECSTs)like electrocatalysis and rechargeable batteries.Improving their performance relies on elucidating reaction mechanisms and structure-performance relationships via in situ studies.This review summarizes recent in situ studies of EECSTs through a variety of advanced characterization techniques aiming at mapping reaction pathways for the rational design of overall high-performance reaction systems.We outline the principles,capabilities,advantages,and limitations of various in situ techniques.Their applications in in situ studies of fuel cells,water/CO_(2)electrolysis,and lithium batteries are highlighted with representative examples.These studies enable dynamic tracking of chemical and structural evolution of overall reaction systems,including materials,intermediates,products,and surroundings during operation,providing insights critical to rational system design.Future advancements will involve integrating multimodal in situ/operando approaches with artificial intelligence to enable real-time monitoring at practical scales.Such integration promises precise mechanistic insights and robust structure-performance correlations,ultimately accelerating the development of high-performance EECSTs aligned with sustainability and market requirements. 展开更多
关键词 In situ studies ELECTROCATALYSIS Lithium batteries Reaction mechanisms Structure-performance relationships
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The spectrum-effect relationship——a rational approach to screening effective compounds, reflecting the internal quality of Chinese herbal medicine 被引量:39
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作者 ZHU Chun-Sheng LIN Zhi-Jian +2 位作者 XIAO Ming-Liang NIU Hong-Juan ZHANG Bing 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2016年第3期177-184,共8页
Since the chromatographic fingerprint was introduced, it has been accepted by many countries to assess the quality and authenticity of Chinese herbal medicine (CHM). However, solely using the chromatographic fingerp... Since the chromatographic fingerprint was introduced, it has been accepted by many countries to assess the quality and authenticity of Chinese herbal medicine (CHM). However, solely using the chromatographic fingerprint to assay numerous chemicals is not suitable for the assessment of the whole internal quality and pharmacodynamics of CHM. Consequently, it is necessary to develop a rational approach to connecting the chromatographic fingerprint with effective components to assess the internal quality of CHM. For this purpose, a spec^tun-effect relationship theory was proposed and accepted as a new method for the assessment of CHM because of its potential use to screen effective components from CHM. In this paper, we systematically reviewed the application of the spectrum-effect relationship theory in the research of CHM, including research mentality, different chromatographic analysis techniques, data processing technologies, and structure determination. 展开更多
关键词 Chinese herbal medicine Chromatographic fingerprint spectrum-effect relationship
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Spectrum-Effect Relationship Between High Performance Liquid Chromatography Fingerprints and Anticoccidial Activities of a Compound Chinese Medicine 被引量:6
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作者 XIAO Sui FEI Chen-zhong +3 位作者 ZHANG Li-fang ZHENG Wen-li ZHANG Ke-yu XUE Fei-qun 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2014年第5期1082-1089,共8页
Quality control and screening of active substances in traditional Chinese medicines have been performed using fingerprint analysis.The spectrum-effect relationship between chromatography fingerprints and efficacy of h... Quality control and screening of active substances in traditional Chinese medicines have been performed using fingerprint analysis.The spectrum-effect relationship between chromatography fingerprints and efficacy of herbal drugs is considered as a potentially useful method for determining active ingredients in complex mixtures.The study was designed to develop a method for determining the bioactive components of a compound Chinese medicine called Tiefeng based on spectrum-effect relationships between high-performance liquid chromatography(HPLC)fingerprints and anticoccidial activities.Four peaks of the established HPLC fingerprint indicate the main bioactive components of this medicine.In addition,pharrnacodynamic atlas was defined and used to assess the anticoccidial activity of Tiefeng from different sources for the first time.We found that the level of anticoccidial activity of Tiefeng was consistent with the degree of similarity between the pharmacodynamic atlas and chromatogram of any sample.Furthermore,effect of this medicine was related with the main active constituents,along with the origin and the harvesting time. 展开更多
关键词 herb medicine FINGERPRINT anticoccidial index spectrum-effect relationship
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Spectrum-effect relationship between HPLC fingerprints and bioactive components of Radix Hedysari on increasing the peak bone mass of rat 被引量:6
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作者 Xin-Yue Chen San-Hu Gou +2 位作者 Zhi-Qiang Shi Zhi-Yuan Xue Shi-Lan Feng 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2019年第4期266-273,共8页
The traditional Chinese medicine of Radix Hedysari plays an important role in invigorating gas for ascending, benefiting blood for promoting production of fluid, and promoting circulation for removing obstruction in c... The traditional Chinese medicine of Radix Hedysari plays an important role in invigorating gas for ascending, benefiting blood for promoting production of fluid, and promoting circulation for removing obstruction in collaterals, which is consistent with the principle of treatment for osteoporosis. This study is designed to investigate the bioactive components on increasing peak bone mass (PBM) by exploring the spectrum-effect relationship between chromatography fingerprints and effect. Multiple indicators are selected to evaluate the pharmacological activity. In fingerprints, 21 common peaks are obtained, five of which are identified. Furthermore, gray relational analysis (GRA) is a quantitative method of gray system theory and is used to describe the correlation degree of common peaks and pharmacological activities with relational value. 21 components are then divided into three different regions, of which ononin and calycosin play an extremely significant role in increasing PBM. In addition, factor analysis and hierarchical cluster analysis (HCA) are used to screen the optimal producing area for Radix Hedysari. This provides a comprehensive and efficient method to improve the quality evaluation of Radix Hedysari, confirming the bioactive components for PBM-enhancement and further develop its medicinal value. 展开更多
关键词 Factor ANALYSIS GRAY RELATIONAL ANALYSIS Hierarchical cluster ANALYSIS PEAK BONE mass RADIX Hedysari spectrum-effect relationship
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Spectrum-effect relationship of immunologic activity of Ganoderma lucidum by UPLC-MS/MS and component knock-out method 被引量:7
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作者 Changqin Li Yiping Cui +5 位作者 Jie Lu Lijun Meng Changyang Ma Zhenhua Liu Yan Zhang Wenyi Kang 《Food Science and Human Wellness》 SCIE 2021年第3期278-288,共11页
This study was designed to elucidate the immunoregulation of Ganoderma lucidum.HPLC fingerprint and spectrum-effect relationship of G.lucidum were established to predict the active compounds and BP neural network mode... This study was designed to elucidate the immunoregulation of Ganoderma lucidum.HPLC fingerprint and spectrum-effect relationship of G.lucidum were established to predict the active compounds and BP neural network model was established to predict the efficacy.Then the target compounds were identified by high resolution mass spectrometry.The results indicated that there are both enhanced immunity and immunosuppressive components in G.lucidum.BP neural network was trained with the common peak area and immune effi cacy index of G.lucidum fi ngerprint as samples,and a combined evaluation system of G.lucidum fi ngerprint effi cacy was established.The correlation coeffi cient R of BP network model was 0.98643,and the error of pharmacodynamic prediction results was in the ideal range.Eight compounds were identifi ed by high resolution mass spectrometry.The compounds related to immune activity in G.lucidum were determined in this study. 展开更多
关键词 Ganoderma lucidum RAW 264.7 cell spectrum-effect relationships Component knock-out BP neural network
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Screening hepatoprotective effective components of Lonicerae japonica Flos based on the spectrum-effect relationship and its mechanism exploring 被引量:3
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作者 Song Wang Lin Yang +4 位作者 Ajiao Hou Songtao Liu Liu Yang Haixue Kuang Hai Jiang 《Food Science and Human Wellness》 SCIE CSCD 2023年第1期283-294,共12页
Lonicerae japonicae Flos(LF)is a kind of healthcare food with hepatoprotective function.This study was designed to explore the spectrum-effect relationships between UPLC fingerprints and the hepatoprotective effects o... Lonicerae japonicae Flos(LF)is a kind of healthcare food with hepatoprotective function.This study was designed to explore the spectrum-effect relationships between UPLC fingerprints and the hepatoprotective effects of LF.Fingerprints of ten batches of LF were established by UPLC-PDA.The inhibitory levels of AST and ALT were used as pharmacological indexes,and secoxyloganin,isochlorogenic acid A and isochlorogenic acid C were screened as hepatoprotective active compounds by grey relational analysis(GRA)and partial least squares regression analysis(PLSR).Caspase-3 was obtained by network pharmacology as a key target of hepatoprotective active compounds.Molecular docking is used to explore the interaction between small molecules and proteins.This work provided a general model of the combination of UPLC-PDA and hepatoprotective effect to study the spectrum-effect relationship of LF,which can be used to considerable methods and insight for the fundamental research of the material basis of similar healthcare food. 展开更多
关键词 Lonicerae japonicae Flos Hepatoprotective effect spectrum-effect relationship Molecular docking MECHANISM
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A study of relationship between red tide formation and bacteria count in west waters of Xiamen Harbour
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《Acta Oceanologica Sinica》 SCIE CAS CSCD 1995年第1期147-153,共7页
AstudyofrelationshipbetweenredtideformationandbacteriacountinwestwatersofXiamenHarbour¥//INTRODUCTIONInrecen... AstudyofrelationshipbetweenredtideformationandbacteriacountinwestwatersofXiamenHarbour¥//INTRODUCTIONInrecentyears,therelatio... 展开更多
关键词 relationship study between RED and BACTERIA TIDE XIAMEN HARBOUR
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Motives for romantic relationships and the risk of heavy alcohol use, regular smoking and cannabis use during adolescence and early adulthood: A longitudinal study
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作者 Wenbin Liang Tanya Chikritzhs 《Open Journal of Internal Medicine》 2013年第2期23-29,共7页
Background: Engaging in sexual activities at a younger age is associated with higher risk of substance misuse among adolescents. It could be hypothesized that substance misuse and certain romantic relationship related... Background: Engaging in sexual activities at a younger age is associated with higher risk of substance misuse among adolescents. It could be hypothesized that substance misuse and certain romantic relationship related behaviors may be influenced by similar hormone and other inner physiological factors that are affected by related motives. This study investigated the association between motives for romantic relationships and the risk of heavy alcohol use, regular smoking and cannabis use from adolescence through to early adulthood. Method: A population-based longitudinal study using data collected from Wave I and Wave III of the National Longitudinal Study of Adolescent Health. Characteristics of romantic relationship ideals (as the proxy of motives) measured in Wave I (mean age: 16 yrs) were applied to predict substance use indicated at Wave III (mean age: 22 yrs) using multivariate analyses. Results: Adolescents who included sexual activities as part of their romantic relationship ideals were at significantly higher risk of cannabis use among males and heavy alcohol use among females. Romantic ideals that included, gift giving (female) or receiving (male), declaration of love (male), marriage (male) and becoming pregnant (female) were associated with reduced risk of one or more types of substance use. Conclusion: In adolescence, sexual motives for romantic relationships were associated with higher risk of substance use and misuse, while motives related to intimacy and commitment in romantic relationships were associated with lower risk. 展开更多
关键词 Motives ROMANTIC relationship ALCOHOL TOBACCO CANNABIS Longitudinal study
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A PRELIMINARY STUDY ON THE RELATIONSHIP BETWEEN MURINE IgE LEVEL AND 3-METHYL-CHOLANTHRENE INDUCED FIBROSARCOMA
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作者 张克 郑珊珊 吴安然 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1990年第3期42-45,共4页
The relationship between murine IgE, IgG, and IgG1 level and birosarcoma induced by 3-Methyl-cholanthrene in NIH mice was studied. The results showed that IgE, IgG or IgGl had no significant effect on tumor incidence;... The relationship between murine IgE, IgG, and IgG1 level and birosarcoma induced by 3-Methyl-cholanthrene in NIH mice was studied. The results showed that IgE, IgG or IgGl had no significant effect on tumor incidence; the high IgE level could extend the survival time of 3-Methylcholanthrene injected mice (P<0.05) and survival time of tumor bearing mice (P<0.01), while IgG or IgGl could not. The data from this study did not show that IgE, IgG or IgGl had any significant effect on the tumor size and the tumor growth rate. The probable mechanism involved was discussed. 展开更多
关键词 IGE high NS A PRELIMINARY study ON THE relationship BETWEEN MURINE IgE LEVEL AND 3-METHYL-CHOLANTHRENE INDUCED FIBROSARCOMA IgG
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Studies on the Relationship between the Helical Structure and Optical Activity of Some Chiral Cyclic Esters Ⅱ
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作者 Ai Hua NIE Xiu Lin YE Qi Yi XING(Department of Chemistry,Pcking University,Beijing 100871) 《Chinese Chemical Letters》 SCIE CAS CSCD 1997年第2期141-144,共4页
A method for the analysis of the relationship between the helical structure and optical activity was proposed by the study of the conformations and X-ray diffraction structures of some cyclic esters prepared by esteri... A method for the analysis of the relationship between the helical structure and optical activity was proposed by the study of the conformations and X-ray diffraction structures of some cyclic esters prepared by esterification of L-(-)-2.3-O-methylidene threitol and L-(+)-2,3-O-isopropplidene threitol with alkanedioyl dichlorides and o-,m-,and p-phthaloyl dichlorides. 展开更多
关键词 Activity CL Studies on the relationship between the Helical Structure and Optical Activity of Some Chiral Cyclic Esters
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A Comparative Study of Interpersonal Relationship in Confucian and Hebrew Classics
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作者 HE Hua SUN Menglong 《Cultural and Religious Studies》 2021年第11期535-542,共8页
Both Confucian and Hebrew classics remain an everlasting heritage for their nations and the world.Wisdom from both classics stresses the importance of interpersonal relationships in constructing the social order.This ... Both Confucian and Hebrew classics remain an everlasting heritage for their nations and the world.Wisdom from both classics stresses the importance of interpersonal relationships in constructing the social order.This paper,through a comparative study,analyzes similar teachings and rituals concerning two prominent interpersonal relationships-marital bond and parent-child relation.It is found that in these two interpersonal relationships,both wisdom highlight the significance of these bonds,define clear boundaries and roles,and provide ethical warnings in these relations.This study contributes to the cross-cultural investigation of ancient Chinese and Hebrew wisdom in that human nature is embedded with similar hope for order,quality,and glory,so mutual understanding and acceptance is essential in promoting a globalized dialogue and critical view of cultures.Suggestions are provided for further research. 展开更多
关键词 comparative study interpersonal relationship Confucian classics Hebrew classics
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A FIVE-YEAR PROSPECTIVE STUDY ON THE RELATIONSHIP BETWEEN GARLIC AND GASTRIC CANCER
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作者 许海修 孙汭 +1 位作者 聂洪洲 陈爱国 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 1989年第4期63-65,共3页
A prospective study on the relationship between garlic and gastric cancer of 4552 subjects was made from Oct., 1980 through 1985. The volunteers, aged 50-59, were healthy males and came from different incidence areas ... A prospective study on the relationship between garlic and gastric cancer of 4552 subjects was made from Oct., 1980 through 1985. The volunteers, aged 50-59, were healthy males and came from different incidence areas of gastric cancer where they lived for long periods. The result of this study showed that the death rates of gastric cancer in < 2500 g and >500 g groups of annual garlic intake were 10.40/ 10000 and 0, respectively. The relative risk of gastric cancer was significantly much higher in the former than in the latter, and showed a dose-response relationship. Protective effect of garlic for the population equal annual garlic intake was roughly the same in different districts. It was further confirmed that garlic played important role in preventing gastric cancer and had no regional differences. 展开更多
关键词 A FIVE-YEAR PROSPECTIVE study ON THE relationship BETWEEN GARLIC AND GASTRIC CANCER
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A Study on the Dose-Response Relationship between Asbestos Exposure Level and Asbestosis among Workers in a Chinese Chrysotile Product Factory
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作者 J. Q. HUANG 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1990年第1期90-98,共9页
The dose-response relationship for asbestos exposure in a chrysotile product factory was studied. The past gravimetric dust concentration values, obtained from different worksites, were converted into fiber concentrat... The dose-response relationship for asbestos exposure in a chrysotile product factory was studied. The past gravimetric dust concentration values, obtained from different worksites, were converted into fiber concentration values according to conversion factors that were worked out by simultaneous sampling in this study. The conversions were made so that exposure could be expressed in fiber-years (f-yr). Asbestosis was diagnosed on the basis of chest radiographs and occupational histories. Cumulative dust exposure (f-yr) was calculated up to the date of diagnosis for asbestosis patients, and up to September 1982 for the remaining workers. A dose-response relationship expressed as fiber-years exposed vs cumulative prevalence of asbestosis was established by the life table method on the basis of these data. Predicted 3 and 1% prevalence of asbestosis corresponded to 43 and 22 f-yr exposure, respectively. Considering that a worker can work for 35 years, these doses are commensurate with dust concentrations of 1.22 and 0.63 f/ml, respectively. It is recommended that 1 f/ml be taken as the maximum allowable concentration of airborne asbestos dust for the workplace with an anticipated prevalence of about 2% asbestosis after 35 years of exposure. 1990 Academic Press, Inc. 展开更多
关键词 A study on the Dose-Response relationship between Asbestos Exposure Level and Asbestosis among Workers in a Chinese Chrysotile Product Factory
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Study of changes and relationships of cytokines in esophageal cancer patients exposed to perioperative allogeneic transfusion
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《中国输血杂志》 CAS CSCD 2001年第S1期335-,共1页
关键词 study of changes and relationships of cytokines in esophageal cancer patients exposed to perioperative allogeneic transfusion
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A Comparative Study Of New Criticism&Semiotic Criticism——In Terms Of Their View Of The Relationship Between The Fictional World&The Real World
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作者 Chen Hong-Qin 《宜宾学院学报》 1997年第4期53-57,共5页
As we know,new criticism is the post—world school of critical theory insists onthe intrinsic value of work of art and focusses on the individual work alone asan independent unit of meaning.It is opposed to the critic... As we know,new criticism is the post—world school of critical theory insists onthe intrinsic value of work of art and focusses on the individual work alone asan independent unit of meaning.It is opposed to the critical practice of bringing histori-cal of brographical data to bear on the anterpretation of a work.To the new critocs,poet-.ry was a special kind of discourse,a means of communicating feeling and thought thatwould not be expressed in any other kind of language.It differed qualitatively from thelanguage of science,or philosophy,but it converyed valid meanings.Such critics set outto define and formalize the qualities of poetic thought and languagege,using the techniqueof close reading with special emphasis on the implicative values of works and on the vari-ous function of figurative language—imagery,metaphor and symbol—in the work. 展开更多
关键词 World A Comparative study Of New Criticism&Semiotic Criticism VIEW In Terms Of Their View Of The relationship Between The Fictional World&The Real World
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A Contrastive Study of the Relationship between Language and Culture Exemplified in English and Chinese
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作者 佘波 《科技信息》 2011年第25期175-176,共2页
This paper analyses the relationship between language and culture exemplified in English and Chinese.Language is not only a part of culture but also the carrier and container of culture.As a mirror of culture language... This paper analyses the relationship between language and culture exemplified in English and Chinese.Language is not only a part of culture but also the carrier and container of culture.As a mirror of culture language is strongly influenced by culture.Language also exerts its influence on culture.Language and culture is closely related. 展开更多
关键词 对比学习 关联 语言与文化 英文与中文
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Effects of Hot Night Exposure on Human Semen Quality:A Multicenter Population-Based Study
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作者 Tingting Dai Ting Xu +13 位作者 Qiling Wang Haobo Ni Chunying Song Yushan Li Fuping Li Tianqing Meng Huiqiang Sheng Lingxi Wang Xiaoyan Cai Lina Xiao Xiaolin Yu Qinghui Zeng Pi Guo Xinzong Zhang 《Biomedical and Environmental Sciences》 2025年第2期178-193,共16页
Objective To explore and quantify the association of hot night exposure during the sperm development period(0–90 lag days) with semen quality.Methods A total of 6,640 male sperm donors from 6 human sperm banks in Chi... Objective To explore and quantify the association of hot night exposure during the sperm development period(0–90 lag days) with semen quality.Methods A total of 6,640 male sperm donors from 6 human sperm banks in China during 2014–2020were recruited in this multicenter study.Two indices(i.e.,hot night excess [HNE] and hot night duration[HND]) were used to estimate the heat intensity and duration during nighttime.Linear mixed models were used to examine the association between hot nights and semen quality parameters.Results The exposure-response relationship revealed that HNE and HND during 0–90 days before semen collection had a significantly inverse association with sperm motility.Specifically,a 1 ℃ increase in HNE was associated with decreased sperm progressive motility of 0.0090(95% confidence interval[CI]:–0.0147,–0.0033) and decreased total motility of 0.0094(95% CI:–0.0160,–0.0029).HND was significantly associated with reduced sperm progressive motility and total motility of 0.0021(95% CI:–0.0040,–0.0003) and 0.0023(95% CI:–0.0043,–0.0002),respectively.Consistent results were observed at different temperature thresholds on hot nights.Conclusion Our findings highlight the need to mitigate nocturnal heat exposure during spermatogenesis to maintain optimal semen quality. 展开更多
关键词 Climate change Exposure-response relationship Hot night exposure Human semen quality Multicenter study
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The systemic inflammatory response index as a risk factor for all-cause and cardiovascular mortality among individuals with coronary artery disease:evidence from the cohort study of NHANES 1999-2018
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作者 Dao-Shen LIU Dan LIU +9 位作者 Hai-Xu SONG Jing LI Miao-Han QIU Chao-Qun MA Xue-Fei MU Shang-Xun ZHOU Yi-Xuan DUAN Yu-Ying LI Yi LI Ya-Ling HAN 《Journal of Geriatric Cardiology》 2025年第7期668-677,共10页
Background The association of systemic inflammatory response index(SIRI)with prognosis of coronary artery disease(CAD)patients has never been investigated in a large sample with long-term follow-up.This study aimed to... Background The association of systemic inflammatory response index(SIRI)with prognosis of coronary artery disease(CAD)patients has never been investigated in a large sample with long-term follow-up.This study aimed to explore the association of SIRI with all-cause and cause-specific mortality in a nationally representative sample of CAD patients from United States.Methods A total of 3386 participants with CAD from the National Health and Nutrition Examination Survey(NHANES)1999-2018 were included in this study.Cox proportional hazards model,restricted cubic spline(RCS),and receiver operating characteristic curve(ROC)were performed to investigate the association of SIRI with all-cause and cause-specific mortality.Piecewise linear regression and sensitivity analyses were also performed.Results During a median follow-up of 7.7 years,1454 all-cause mortality occurred.After adjusting for confounding factors,higher lnSIRI was significantly associated with higher risk of all-cause(HR=1.16,95%CI:1.09-1.23)and CVD mortality(HR=1.17,95%CI:1.05-1.30)but not cancer mortality(HR=1.17,95%CI:0.99-1.38).The associations of SIRI with all-cause and CVD mortality were detected as J-shaped with threshold values of 1.05935 and 1.122946 for SIRI,respectively.ROC curves showed that lnSIRI had robust predictive effect both in short and long terms.Conclusions SIRI was independently associated with all-cause and CVD mortality,and the dose-response relationship was Jshaped.SIRI might serve as a valid predictor for all-cause and CVD mortality both in the short and long terms. 展开更多
关键词 Risk Factor Coronary Artery Disease J shaped relationship MORTALITY Cohort study coronary artery disease cad patients PROGNOSIS Systemic Inflammatory Response Index
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基于SPMA框架的数据集结构对链接预测性能影响机制研究
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作者 姜小波 邓亚东 邱崧 《计算机学报》 北大核心 2026年第3期520-534,共15页
针对知识图谱链接预测任务中数据去冗余操作(剔除逆向与对称关系三元组)导致的模型性能显著下降及优化困难问题,本研究提出结构扰动与多视角分析框架SPMA(Structural Perturbation and Multi-view Analysis Framework),系统探究数据结... 针对知识图谱链接预测任务中数据去冗余操作(剔除逆向与对称关系三元组)导致的模型性能显著下降及优化困难问题,本研究提出结构扰动与多视角分析框架SPMA(Structural Perturbation and Multi-view Analysis Framework),系统探究数据结构特征对模型性能的作用机制。以FB15k-237为基准数据集,该框架构建“结构特征-性能指标-作用机制”三维分析体系,整合结构扰动生成、量化评估及多视角解释方法,形成可迁移的通用分析范式。研究首先开发基于启发式广度优先搜索的连通子图采样算法,构建结构特征差异化子图集合。通过敏感性实验发现,关系类别分布不均衡构成关键结构性瓶颈,其负向影响在不同采样场景下呈现显著相关性。进一步通过收敛动态分析、梯度分布解析和嵌入空间可视化等多维度方法,揭示不同关系类别对优化强度、梯度贡献度及空间结构需求存在显著差异,这种内在冲突导致模型难以达成多目标优化平衡。TransE、ComplEx、SEGNN等主流模型上的系统性验证表明:性能制约主要源于数据结构固有特征而非模型架构限制。本研究建立的SPMA框架为知识图谱数据质量评估、结构优化及模型训练策略设计提供了新的理论工具。 展开更多
关键词 知识图谱嵌入 链接预测 机制研究 关系类别分布 LIME模型
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