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Relationship between the use of smart medical services and mental health status
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作者 Elif Sarac 《World Journal of Psychiatry》 SCIE 2025年第1期21-25,共5页
In this editorial,I comment on the article by Zhang et al.To emphasize the importance of the topic,I discuss the relationship between the use of smart medical devices and mental health.Smart medical services have the ... In this editorial,I comment on the article by Zhang et al.To emphasize the importance of the topic,I discuss the relationship between the use of smart medical devices and mental health.Smart medical services have the potential to positively influence mental health by providing monitoring,insights,and inter-ventions.However,they also come with challenges that need to be addressed.Understanding the primary purpose for which individuals use these smart tech-nologies is essential to tailoring them to specific mental health needs and prefe-rences. 展开更多
关键词 Smart devices Medical service USAGE PEOPLE relationship Mental health status
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Three anti-inflammatory polysaccharides from Lonicera japonica Thunb.:insights into the structure-function relationships
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作者 Yu Liu Hongjing Dong +5 位作者 Dongxiao Sun-Waterhouse Wenwen Li Bin Zhang Jinqian Yu Zhichang Qiu Zhenjia Zheng 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第4期2197-2207,共11页
This study demonstrates the feasibility of producing three polysaccharides(neutral LJP-1,acidic LJP-2 and acidic LJP-3)with significant in vitro and in vivo anti-inflammatory activities from the flowers of Lonicera ja... This study demonstrates the feasibility of producing three polysaccharides(neutral LJP-1,acidic LJP-2 and acidic LJP-3)with significant in vitro and in vivo anti-inflammatory activities from the flowers of Lonicera japonica.The three polysaccharides differed in chemical composition,molecular weight(Mw)distribution,glycosidic linkage pattern,functional groups and morphology.They exhibited excellent protective effects(in a dose-dependent manner)in lipopolysaccharide-injured RAW264.7 macrophages and Cu SO4-damaged zebrafish via reducing NO production and inhibiting the overexpressions of inflammation-related transcription factors,inflammatory proteins and cytokines in the NF-κB/MAPK signaling pathways.Their antiinflammatory effects varied owing to their different molecular characteristics and chemical compositions.Overall,LJP-2 at 400μg/m L was the most effective.LJP-2 consisted mainly of→5)-α-L-Araf(1→,→4)-α-LGalp A(1→and→2)-α-L-Rhap(1→residues with terminal T-β-D-Glcp.Thus,honeysuckle flowers are good sources of anti-inflammatory polysaccharides,and precise fractionation enables the production of potent antiinflammatory agents for the development of functional foods and healthcare products. 展开更多
关键词 Honeysuckle polysaccharides FRACTIONATION Molecular characteristics Anti-inflammatory properties Structure-function relationship
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On the Relationship between the Original and the Translated Version——The Interpretation of Benjamin's Three Metaphors
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作者 孙静 《海外英语》 2014年第20期162-163,167,共3页
This paper explores the relationship between the original and its translation by interpreting Benjamin's three metaphors from his The Translator's Task. The exploration starts with the metaphor of"the tan... This paper explores the relationship between the original and its translation by interpreting Benjamin's three metaphors from his The Translator's Task. The exploration starts with the metaphor of"the tangent of a circle",where it is interpreted that although the translated version should be faithful to its original in terms of meaning,yet it is a deviation due to different internal and external factors. Then,in the metaphor of"afterlife",the discussion demonstrates that the translated version proceeds from the original,but the original depends on it for its survival and afterlife in different eras. Later,based on the metaphor of"fragments of a vessel",the author states that the original and its translation are equal and complementary,just like the fragments of a vessel,responsible for the development and renewal of each other through translation. Finally,it is concluded that a better understanding of their relationship can offer us a new perspective in translation studies and practice. 展开更多
关键词 relationship between the ORIGINAL and the translat
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The Relationship between Father-Love Absence and Loneliness:Based on the Perspective of the Social Functionalist Theory and the Social Needs Theory
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作者 Yaping Zhou He Zhong +1 位作者 Xiaojun Li Yanhui Xiang 《International Journal of Mental Health Promotion》 2024年第2期139-148,共10页
Fathers play an important role in adolescents’development,which is significant for their development and influences their mental health,including feeling of loneliness.However,the effects and mechanisms of father-lov... Fathers play an important role in adolescents’development,which is significant for their development and influences their mental health,including feeling of loneliness.However,the effects and mechanisms of father-love absence on individual loneliness are not clear.Based on the social functionalist theory and the social needs theory,this study examines the influence of individual fatherlove absence on loneliness and its underlying mechanisms.A questionnaire survey was administered to 319 junior high school students and 1,476 high school students.The results showed that adolescents with father-love absence had higher levels of loneliness,and that father-love absence affected loneliness levels through mediating pathways of individual gratitude,peer relationships,and gratitude to peer relationships.This study not only confirms the negative effects of father-love absence on adolescents’loneliness,but also explains the mediate roles of individual gratitude and peer relationships.It enriches the theoretical system related to family education and has important theoretical and practical implications for further interventions on adolescents’mental health from the perspective of fatherless parenting. 展开更多
关键词 Father-love absence LONELINESS GRATITUDE peer relationships
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Interconnected Challenges: Addressing the Bidirectional Relationship between Heart Failure and Cognitive Impairment through Targeted Intervention Strategies
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作者 Shahd Elshabka 《Open Journal of Nursing》 2024年第11期608-616,共9页
This paper examines the bidirectional relationship between heart failure (HF) and cognitive impairment, underscoring the need for integrated intervention strategies to address these interconnected conditions effective... This paper examines the bidirectional relationship between heart failure (HF) and cognitive impairment, underscoring the need for integrated intervention strategies to address these interconnected conditions effectively. Cognitive deficits often hinder the effective management of HF, leading to poorer treatment adherence and health outcomes, while the physiological stress of HF can further impair cognitive function, creating a complex interplay that complicates patient care. This study highlights the effectiveness of angiotensin-converting enzyme (ACE) inhibitors and cardiac resynchronization therapy (CRT) in improving both cardiac and cognitive functions. By targeting the underlying physiological and neurobiological mechanisms of HF, these therapies enhance patient outcomes, leading to better adherence to treatment regimens and overall quality of life. Furthermore, the findings suggest that regular cognitive assessments should be integrated into HF management protocols, enabling early identification of cognitive impairment and timely intervention. Incorporating ACE inhibitors and CRT into standard care practices not only addresses the complexities of managing HF and cognitive decline but also fosters a holistic approach to patient health. Ultimately, this multifaceted strategy has the potential to significantly improve health outcomes, enhance the quality of care, and support sustainable management of patients with heart failure and cognitive impairment. 展开更多
关键词 Heart failure Cognitive Impairment Bidirectional relationship Angiotensin-Converting Enzyme Inhibitors Cardiac Resynchronization therapy (CRT) Cognitive Function Disease Management Interventional Strategies Cardiovascular Health Clinical Guidelines
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The Strange Relationship between the Momentum of a Photon Emitted from an Electron and the Momentum Acquired by the Electron
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作者 Koshun Suto 《Journal of Applied Mathematics and Physics》 2024年第7期2652-2664,共13页
In quantum mechanics, the energy of a hydrogen atom is minimized when the principal quantum number n is 1. However, the author has previously pointed out that the hydrogen atom has a state where n=0. An electron in th... In quantum mechanics, the energy of a hydrogen atom is minimized when the principal quantum number n is 1. However, the author has previously pointed out that the hydrogen atom has a state where n=0. An electron in the state where n=0has zero rest mass energy. However, a hydrogen atom has an energy level even lower than the n=0state. This is hard to accept from the standpoint of common sense. Thus, the author has previously pointed out that an electron at the energy level where n=0has zero energy because the positive energy mec2and negative energy −mec2cancel each other out. This paper elucidates the strange relationship between the momentum of a photon emitted when a hydrogen atom is formed by an electron with such characteristics, and the momentum acquired by the electron. 展开更多
关键词 Einstein’s Energy-Momentum relationship Energy-Momentum relationship in a Hydrogen Atom Momentum of a Photon Momentum of a Electron Negative Energy Specific to the Electron Dark Matter
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The relationship between attribute performance and customer satisfaction: an interpretable machine learning approach
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作者 Jie Wang Jing Wu +1 位作者 Shaolong Sun Shouyang Wang 《Data Science and Management》 2024年第3期164-180,共17页
Understanding the relationship between attribute performance(AP)and customer satisfaction(CS)is crucial for the hospitality industry.However,accurately modeling this relationship remains challenging.To address this is... Understanding the relationship between attribute performance(AP)and customer satisfaction(CS)is crucial for the hospitality industry.However,accurately modeling this relationship remains challenging.To address this issue,we propose an interpretable machine learning-based dynamic asymmetric analysis(IML-DAA)approach that leverages interpretable machine learning(IML)to improve traditional relationship analysis methods.The IML-DAA employs extreme gradient boosting(XGBoost)and SHapley Additive exPlanations(SHAP)to construct relationships and explain the significance of each attribute.Following this,an improved version of penalty-reward contrast analysis(PRCA)is used to classify attributes,whereas asymmetric impact-performance analysis(AIPA)is employed to determine the attribute improvement priority order.A total of 29,724 user ratings in New York City collected from TripAdvisor were investigated.The results suggest that IML-DAA can effectively capture non-linear relationships and that there is a dynamic asymmetric effect between AP and CS,as identified by the dynamic AIPA model.This study enhances our understanding of the relationship between AP and CS and contributes to the literature on the hotel service industry. 展开更多
关键词 Hotel service AP-CS relationship Interpretable machine learning Dynamic asymmetric analysis XGBoost
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The Phylogenetic Relationships among Four Subspecies of the Genus Locusta Based on Sequences of Three Subunit of Cytochrome Oxidase 被引量:3
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作者 张道川 王健学 智永超 《Agricultural Science & Technology》 CAS 2011年第2期244-248,共5页
[Objective] The aim was to explore the phylogenetic relationships among four subspecies of the genus Locusta.[Method] The sequences of three subunits of cytochrome oxidase of Locusta migratoria tibetensis and Locusta ... [Objective] The aim was to explore the phylogenetic relationships among four subspecies of the genus Locusta.[Method] The sequences of three subunits of cytochrome oxidase of Locusta migratoria tibetensis and Locusta migratoria manilensis were amplified and sequenced(COⅠ 1 539 bp,COⅡ 684 bp,CO Ⅲ 792 bp,with the total of 3 015 bp).The corresponding sequenses of Locusta migratoria migratoria and Locusta migratoria migratorioides were obtained from GenBank and constructed a multiple alignment.Phylogenic trees of four subspecies of L.migratoria were constructed by Neighbor-Joining,Maximum-parsimony and Bayesian,respectively.[Result] The average content of A + T in three subunits of four subspecies was 69.57%;the third site of codon showed the highest A + T content,and the COⅠ had the highest A + T content(87.6%);The nucleotide substitution mainly occurred at the third site of codon,and the nucleotide replacement rate of CO Ⅱ was the highest.The second site of codon was conservative,so the replacement rate was in the range of 5.9%-15%.The start codon of COⅠ was CCG or ACG.Genetic distances among four subspecies were ranged from 0.001 to 0.076.The relationship between L.m.tibetensis and Locusta migratoria manilensis was the closest,followed by L.m.migratorioides and L.m.migratorioides,while the genetic distance between L.m.tibetensis and L.m.migratorioides was the largest.[Conclusion] The phylogenetic relationships among four subspecies of Locusta migratoria is L.m.tibetensis,L.m.manilensis,L.m.migratoria,L.m.migratorioides. 展开更多
关键词 LOCUSTA SUBSPECIES Phylogenetic relationship MITOCHONDRION Cytochrome oxidase
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The Relationship between Diet and Mortality of Cancer and Non-communicable Disease in Japan 被引量:1
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作者 蔡云清 青岛惠子 +2 位作者 寺西秀丰 加藤辉隆 加须屋实 《Journal of Nanjing Medical University》 2003年第1期9-17,共9页
Objective: To evaluate the effects of dietary factors on cancer and non-communicable diseases. Methods: A correlation analysis between the consumption of various indicator food and mortality rates of cancer or non-com... Objective: To evaluate the effects of dietary factors on cancer and non-communicable diseases. Methods: A correlation analysis between the consumption of various indicator food and mortality rates of cancer or non-communicable diseases was conducted by collecting secondary data from national nutrition surveys in Japan. Results: The consumption of cereal foods, plant energy and plant protein showed a significant negative correlation with mortality of cancer, heart diseases and diabetes; negatively related to the lung cancer and colon cancer in both sexes; a strong negative correlation with mortality of rectum cancer, liver cancer and prostate cancer in males, and of breast cancer in females; and a significant positive correlation with the stomach cancer in both sexes. The consumption of animal foods, animal energy, animal protein and fat showed a strong positive correlation with cancer, heart diseases and diabetes; a positive relations to lung cancer and colon cancer in both sexes, and rectum cancer, liver cancer and prostate cancer in males and breast cancer in females. On the contrary, a strong negative correlation was found in stomach cancer in both sexes; and esophagus cancer, liver cancer and uterus cancer in females. The consumption of vegetables and fruits showed a weak negative correlation with stomach cancer. Conclusion : The results suggest that diet not only plays a significant role in increasing the risks of some kinds of cancer or non-communicable diseases but also has a preventive effect. It is very important that dietary balance should be emphasized to prevent cancer and non-com-municable diseases. 展开更多
关键词 DIET CANCER non-communicable disease relationship
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Relationships Between Average Molecular Mass and Intrinsic viscosity of Three Typical Polyanhydrides
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作者 帅心涛 谭惠民 王晓青 《Journal of Beijing Institute of Technology》 EI CAS 1998年第1期39-42,共4页
Aim To study the relationships between average molecular mass and intrinsic viscosity of polyanhydrides. Methods With chloroform as solvent and petroleum ether as the precipitating agent polyanhydride was separated in... Aim To study the relationships between average molecular mass and intrinsic viscosity of polyanhydrides. Methods With chloroform as solvent and petroleum ether as the precipitating agent polyanhydride was separated into a series of grades with different average molecular mass. The absolute average molecular mass (M) and intrinsic viscosity ([]) of every grade were measured. Results and Conclusion The relationships between [] and M of three typical polyanhydrides were obtained from bi-logarithm coordinate plotting of [] versus M. 展开更多
关键词 polanhydrides []-M relationship light scattering intrinsic viscosity
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Validation of the Relationship between Precipitable Water and Surface Vapor Pressure by Means of Reanalysis Data
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作者 张凯静 戴新刚 《Meteorological and Environmental Research》 CAS 2010年第5期1-6,27,共7页
By means of ERA-40, JRA-25, NCEP/NCAR and NCEP/DOE reanalysis data, empirical relations between precipitable water and surface vapor pressure in spatial and temporal scale were calculated. The reliabilities of precipi... By means of ERA-40, JRA-25, NCEP/NCAR and NCEP/DOE reanalysis data, empirical relations between precipitable water and surface vapor pressure in spatial and temporal scale were calculated. The reliabilities of precipitable water from reanalysis data were validated based on comparing different W-e empirical relations of various reanalysis data, in order to provide basis and reference for reasonable application. The results showed that W-e empirical relation of ERA-40 was closest to that of sounding data in China, and precipitable water from ERA-40 was the most credible. The worldwide comparison among W-e empirical relations of four reanalysis data showed that there was little difference in annual mean W-e empirical relations in the middle latitudes and great differences in low and high latitudes. Seasonal mean W-e empirical relations in the middle latitudes of the northern Hemisphere had little difference in spring, autumn and winter, but great difference in summer. Therefore, the reliabilities of precipitable water from reanalysis data in spring, autumn and winter in the middle latitudes of the northern hemisphere were higher than other areas and seasons. W-e empirical relations of NCEP/NCAR and NCEP/DOE had good stability in different years, while there was poor stability in ERA-40 and JRA-25. 展开更多
关键词 Reanalysis data Surface vapor pressure Precipitable water Statistical relationship China
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A Study of the Relationship between L2 Proficiency and Mother-tongue-reliance Strategies
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作者 骆敏 徐敏娜 《海外英语》 2017年第7期240-241,共2页
By investigating the types of 371 non-English major freshmen's use of mother-tongue-reliance strategies in English languagelearning,the study showed that students' use of mother-tongue-reliance strategies woul... By investigating the types of 371 non-English major freshmen's use of mother-tongue-reliance strategies in English languagelearning,the study showed that students' use of mother-tongue-reliance strategies would vary significantly with their different L2 profi-ciency.And it was negatively correlated with L2 proficiency.And the study discussed the implications to guide English language teach-ing and learning. 展开更多
关键词 mother-tongue-reliance strategies L2 proficiency relationship
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Studies on the Relationship between Occurrence Degree of Cotton Bollworm and Rainfall 被引量:8
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作者 刘学义 王洪涛 +6 位作者 高伟力 范小九 李淑英 卫金燕 崔素华 王华 申予鲁 《Agricultural Science & Technology》 CAS 2008年第2期139-142,共4页
[ Objective ] The aim of the study is to investigate the factors causing the outbreak of cotton bollworm and to provide effective measures for controlling cotton bollworm. [ Method] Based on the analysis of the data a... [ Objective ] The aim of the study is to investigate the factors causing the outbreak of cotton bollworm and to provide effective measures for controlling cotton bollworm. [ Method] Based on the analysis of the data about insect and weather situation in Luyi County in 32 years, the meteorological, prediction model was established for monitoring the quarterly or monthly occurrence trend of cotton bollworm. [Result] The cotton boillworm occurred slightly in the years with rainfalls of 3 months over 500 nm and severely in the years with rainfalls of 3 months: less than 400 rim. The results of correlation analysis show that annual occurrence degrees of cotton bollworm and occurrence degrees of 4^th generation of cotton bollworm are extremely negatively correlated with rainfall during June - August; the occurrence degrees of 3^rd and 4^th generations of cotton bollworm are also extremely negatively correlated with rainfall in July. [ Conclusion] The occurrence of cotton bollworm in field is heavily influenced by rainfall in at its occurrence stage; moreover, the rainfall during June - August is the decisive factors influencing the occurrence of cotton bollworm. 展开更多
关键词 Cotton bollworm Occurrence degree RAINFALL relationship
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Correlation between the neuroendocrine axis,microbial species,inflammatory response,and gastrointestinal symptoms in irritable bowel syndrome 被引量:1
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作者 Xin Zhang Wei-Wei Jin Hong-Gang Wang 《World Journal of Gastroenterology》 SCIE CAS 2024年第35期3985-3995,共11页
BACKGROUND This study examines the complex relationships among the neuroendocrine axis,gut microbiome,inflammatory responses,and gastrointestinal symptoms in patients with irritable bowel syndrome(IBS).The findings pr... BACKGROUND This study examines the complex relationships among the neuroendocrine axis,gut microbiome,inflammatory responses,and gastrointestinal symptoms in patients with irritable bowel syndrome(IBS).The findings provide new insights into the pathophysiology of IBS and suggest potential therapeutic targets for improving patient outcomes.AIM To investigate the interactions between the neuroendocrine axis,gut microbiome,inflammation,and gastrointestinal symptoms in patients with IBS.METHODS Patients diagnosed with IBS between January 2022 and January 2023 were selected for the study.Healthy individuals undergoing routine check-ups during the same period served as the control group.Data were collected on neuroendocrine hormone levels,gut microbiome profiles,inflammatory biomarkers,and gastrointestinal symptomatology to analyze their interrelations and their potential roles in IBS pathogenesis.RESULTS IBS patients exhibited significant dysregulation of the neuroendocrine axis,with altered levels of cortisol,serotonin,and neuropeptides compared to healthy controls.The gut microbiome of IBS patients showed reduced diversity and specific alterations in bacterial genera,including Bifidobacterium,Lactobacillus,and Faecalibacterium,which were associated with neuroendocrine disturbances.Additionally,elevated levels of inflammatory markers,such as C-reactive protein,interleukin-6,and tumor necrosis factor-α,were observed and correlated with the severity of gastrointestinal symptoms like abdominal pain,bloating,and altered bowel habits.CONCLUSION The findings suggest that targeting the neuroendocrine axis,gut microbiome,and inflammatory pathways may offer novel therapeutic strategies to alleviate symptoms and improve the quality of life in IBS patients. 展开更多
关键词 Gastrointestinal symptoms Inflammatory response Intestinal microbiota Irritable bowel syndrome Neuroendocrine axis relationship study
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Relationship between Kawasaki disease and abdominal pain 被引量:1
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作者 Yan Pan Fu-Yong Jiao 《World Journal of Clinical Cases》 SCIE 2024年第17期2932-2934,共3页
This editorial presents an analysis of an article recently published in the World Journal of Clinical Cases.Kawasaki disease(KD)is a well-known pediatric vasculitis characterized by fever,rash,conjunctivitis,oral muco... This editorial presents an analysis of an article recently published in the World Journal of Clinical Cases.Kawasaki disease(KD)is a well-known pediatric vasculitis characterized by fever,rash,conjunctivitis,oral mucosal changes,and swelling of the extremities.This editorial aims to delve into the intricate relationship between KD and abdominal pain,drawing insights from recent research findings to provide a comprehensive understanding and potential avenues for future investigation. 展开更多
关键词 Kawasaki disease Abdominal pain relationship RESEARCH INVESTIGATION
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A Study on the Relationship between Language and Culture 被引量:2
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作者 李云 王群 邢瑶瑶 《海外英语》 2010年第6X期291-292,共2页
In recent years,many scholars have devoted themselves to the study of language and culture from different perspectives.The view this paper holds is that language and culture are closely related and the relationship be... In recent years,many scholars have devoted themselves to the study of language and culture from different perspectives.The view this paper holds is that language and culture are closely related and the relationship between them is bidirectional:as a component of a certain culture system,a language notes down,spreads and passes on the message involved in the given culture;at the same time,it is culture that makes language form,develop and mature. 展开更多
关键词 LANGUAGE CULTURE BIDIRECTIONAL relationship
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Numerical Simulation of the Relationship between the Anomaly of Subtropical High over East Asia and the Convective Activities in the Western Tropical Pacific 被引量:40
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作者 黄荣辉 卢里 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 1989年第2期202-214,共13页
In this paper, a close relationship between the intraseasonal variation of subtropical high over East Asia and the convective activities around the South China Sea and the Philippines is analysed from OLR data.This re... In this paper, a close relationship between the intraseasonal variation of subtropical high over East Asia and the convective activities around the South China Sea and the Philippines is analysed from OLR data.This relationship is studied by using the theory of wave propagating in a slowly varying medium and by using a quasi-geoslrophic, linear, spherical model and the IAP-GCM, respectively. The results show that when the SST is warming around the western tropical Pacific or the Philippines, the convective activities are intensified around the Philippines. As a consequence, the subtropical high will be intensified over East Asia. The computed results also show that when the anomaly of convective activities are caused around the Philippines, a teleconnection pattern of circulation anomalies will be caused over South Asia, East Asia and North America. 展开更多
关键词 OVER Numerical Simulation of the relationship between the Anomaly of Subtropical High over East Asia and the Convective Activities in the Western Tropical Pacific Asia
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A Study of the Relationship between Air Pollutants and Inversion in the ABL over the City of Lanzhou 被引量:14
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作者 张强 李宏宇 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2011年第4期879-886,共8页
By analyzing the pollutant concentrations over the urban area and over the rural area of the city of Lanzhou, Gansu Province, China, the relationships between the daytime inversion intensity and the pollutant concentr... By analyzing the pollutant concentrations over the urban area and over the rural area of the city of Lanzhou, Gansu Province, China, the relationships between the daytime inversion intensity and the pollutant concentration in the atmospheric boundary layer (ABL) are studied with the consideration of wind speed and direction, potential temperature, specific humidity profiles, pollutant concentration in the ABL, the surface temperature, and global radiation on the ground. It was shown that the daytime inversion is a key factor in controlling air pollution concentration. A clear and positive feedback process between the daytime inversion intensity and the air pollutants over the city was found through the analysis of influences of climatic and environmental factors. The mechanisms by which the terrain and air pollutants affect the formation of the daytime inversion are discussed. The solar radiation as the essential energy source to maintain the inversion is analyzed, as are various out-forcing factors affecting the inversion and air pollutants. At last, a physical frame of relationships of air pollution with daytime inversion and the local and out-forcing factors over Lanzhou is built. 展开更多
关键词 relationship Lanzhou City INVERSION POLLUTANT out-forcing factors
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Time-Frequency Characteristics of the Relationships Between Tropical Indo-Pacific SSTs 被引量:9
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作者 Song YANG 丁晓利 +1 位作者 郑大伟 Soo-Hyun YOO 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2007年第3期343-359,共17页
In this study, several advanced analysis methods are applied to understand the relationships between the Nino-3.4 sea surface temperatures (SST) and the SSTs related to the tropical Indian Ocean Dipole (IOD). By a... In this study, several advanced analysis methods are applied to understand the relationships between the Nino-3.4 sea surface temperatures (SST) and the SSTs related to the tropical Indian Ocean Dipole (IOD). By analyzing a long data record, the authors focus on the time-frequency characteristics of these relationships, and of the structure of IOD. They also focus on the seasonal dependence of those characteristics in both time and frequency domains. Among the Nino-3.4 SST, IOD, and SSTs over the tropical western Indian Ocean (WIO) and eastern Indian Ocean (EIO), the WIO SST has the strongest annual and semiannual oscillations. While the Nino-3.4 SST has large inter-annual variability that is only second to its annual variability, the IOD is characterized by the largest semiannual oscillation, which is even stronger than its annual oscillation. The IOD is strongly and stably related to the EIO SST in a wide range of frequency bands and in all seasons. However, it is less significantly related to the WIO SST in the boreal winter and spring. There exists a generally weak and unstable relationship between the WIO and EIO SSTs, especially in the biennial and higher frequency bands. The relationship is especially weak in summer and fall, when IOD is apparent, but appears highly positive in winter and spring, when the IOD is unimportantly weak and even disappears. This feature reflects a caution in the definition and application of IOD. The Nino-3.4 SST has a strong positive relationship with the WIO SST in all seasons, mainly in the biennial and longer frequency bands. However, it shows no significant relationship with the EIO SST in summer and fall, and with IOD in winter and spring. 展开更多
关键词 Indian Ocean dipole ENSO time-frequency relationship coherence analysis
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Vegetation-environment Relationships Between Northern Slope of Karlik Mountain and Naomaohu Basin,East Tianshan Mountains 被引量:8
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作者 ZHANG Haiyan QIAN Yibing +1 位作者 WU Zhaoning WANG Zhongchen 《Chinese Geographical Science》 SCIE CSCD 2012年第3期288-301,共14页
Based on data from 22 sample plots and applying the Canonical Correspondence Analysis (CCA), this paper discusses the vegetation-environment relationships between the northern slope of Karlik Mountain and Naomaohu B... Based on data from 22 sample plots and applying the Canonical Correspondence Analysis (CCA), this paper discusses the vegetation-environment relationships between the northern slope of Karlik Mountain and Naomaohu Ba- sin, which is situated in the easternmost end of the Tianshan Mountains, Xinjiang Uygur Autonomous Region, China. For the zonal vegetation, community diversity of mountain vegetation is higher than that of the desert vegetation due to environmental factors. The CCA ordination diagram revealed that the composition and distribution of vegetation types are mainly determined by altitude, soil pH and soil salt content. With increasing elevation, the soil pH and total salt content decrease but the contents of soil organic matter, soil water, total nitrogen and total phosphorus increase gradu- ally. In the CCA ordination diagrams, the sample plots and main species can be divided into five types according to their adaptations to the environmental factors. Type Ⅰ is composed of desert vegetation distributed on the low moun- tains, hills, plains and deserts below an elevation of 1900 m; type Ⅱ is distributed in the mountain and desert ecotone with an elevation of 1900-2300 m, and includes steppe desert, desert steppe and wetland meadow; type Ⅲ is very sim- ply composed of only salinized meadow; type Ⅳ is distributed above an elevation of 2300 m, containing mountain steppe, meadow steppe, subalpine meadow and alpine meadow; type Ⅴ only contains salinized meadow. The results show that with increasing elevation, species combination changes from the xerophytic shrubs, semi-shrubs and herbs distributed in the low altitude zone with arid climate to the cold-tolerant perennial herbs growing in the high altitudinal zone with cold climate. 展开更多
关键词 vegetation pattern environmental factors canonical correspondence analysis (CCA) vegetation-environment relationships Tianshan Mountains XINJIANG
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