To figure out the disease occurrence of landscape plants in the main urban area of Lu'an City,the author investigated the disease occurrence of landscape plants in park green space,residential green space,unit att...To figure out the disease occurrence of landscape plants in the main urban area of Lu'an City,the author investigated the disease occurrence of landscape plants in park green space,residential green space,unit attached green space and main road in the area under administration.The survey results showed that there were 29 species of urban landscape plant diseases,mainly powdery mildew and spot diseases.According to the characteristics of the diseases,the causes and problems of the diseases were analyzed,and the corresponding prevention and control measures were put forward.展开更多
AIM: To determine the citation status in 2004 and the citation trend of WJG by analyzing all articles cited by WJG and all WJG articles cited by SCI journals during 1998-2004.METHODS: The total number of published art...AIM: To determine the citation status in 2004 and the citation trend of WJG by analyzing all articles cited by WJG and all WJG articles cited by SCI journals during 1998-2004.METHODS: The total number of published articles and reference citations in WJG, authors' self-citations, WJG's self-citations, citations of WJG articles by SCI journals and inappropriate citations in WJG during 1998-2004 were statistically analyzed. Data on self-citations of the articles published between 1998 and August 2004 (Issues 1-16)were from ISI SCI-E, and data on self-citations of articles published after August 2004 (Issues 17-24) were from the WJG Editorial Office. Data on citations of WJG articles by other journals between 1998 and August 2004 were from ISI SCI-E.RESULTS: Annual number of published articles: WJG published 179, 144, 211, 174, 236, 634 and 830 articles,respectively, in 1998, 1999, 2000, 2001, 2002, 2003 and 2004. The number in 2004 increased by 594, compared to that in 2002, giving an increased rate of 251.7%. Annual references cited by WJG were 2 123, 2 125, 6 244,8 883, 11 442, 23 218 and 25 971, respectively, in 1998-2004.The average number was 31.3 per WJG article in 2004,which was less than that (48.5) in 2002, giving a reduction rate of 35.5%. Authors of WJG cited 125, 126, 343, 210,354, 310 and 470 of their own published articles,respectively, in 1998-2004. The average number of authors'self-citations was 0.57 per WJG article in 2004, which was decreased by 0.93 or 62.0%, compared with that in 2002.Annual numbers of journal's self-citations: Authors of WJG articles cited 5, 7, 373, 733, 1474, 1947 and 1412 of WJG articles, respectively, in 1998-2004. The average number of journal's self-citations was 1.70 per WJG article in 2004,which decreased by 4.55 or 72.8%. No WJG article was cited in 1998 by other SCI journals. However, the number of citations steadily increased afterwards, with 16, 18, 39,85, 372 and 580, respectively, in 1999-2004. The average number of citations by other SCI journals was 0.11, 0.09,0.22, 0.36, 0.59 and 1.06 per WJG article, respectively,1999-2004 (January-August). There was an increase by 582%, when comparing the citation numbers between 2004and 2002. Annual WJG self-citation rates and citation rates of WJG articles by other SCI journals: WJG self-citation rates were 30.43%, 95.40%, 95.07%, 94.55%, 83.96%and 67.47%, respectively, in 1999-2004 (January-August).Compared with 2002, the self-citation rate in 2004decreased by 26.87%. The citation rates of WJG articles by other SCI journals were 69.57%, 4.60%, 4.93%, 5.45%,16.04%, and 32.53%, respectively, in 1999-2004 (January-August). Compared with 2002, the citation rate in 2004decreased by 26.87%. There were 8, 19, 218, 274, 461,698 and 574 inappropriate citations, respectively, in 1998-2004.The average inappropriate citation in 2004 was 0.69 per article, which represents a decrease of 1.26, compared with that in 2002. Inappropriate citations were mostly those with the differences between the two sides of the hyphens of 5-9, and the proportions of inappropriate citations within the three subsections of the differences between the two sides of the hyphens (5-9, 10-19, and >=20) were approximately 7:2:1. In addition, inappropriate citations mostly occurred with frequencies of 1-3 in the articles,and the proportion of inappropriate citations within the two frequency subsections (1-3 and >3) have been approximately 4:1 since 1999.CONCLUSIONS: In 2004, the average number of reference citations, authors' self-citations and journal's self-citations were 31.3, 0.57 and 1.70 per article, respectively, which represents a decrease in the numbers by 35.5%. 62.0%,and 72.8% respectively compared to the corresponding numbers in 2002. WJG self-citation rate was 67.47% in 2004 (January-August), which was a decrease by26.87%,compared with 2002. The citation rate of WJG articles by other SCI journals was 32.53% in 2004 (January-August),an increase of 26.87%, compared to 2002. There were 574inappropriate citations in 2004, with an average of 0.69per article, which represents a decrease of 1.26, compared with that in 2002. These figures demonstrate that the overall citation status of WJG is improving.展开更多
Information age and the rapid development of information technology has brought the infinite creativity and possibility for all works in modem society. If CAD technology is first innovation of information technology i...Information age and the rapid development of information technology has brought the infinite creativity and possibility for all works in modem society. If CAD technology is first innovation of information technology in construction industry, then the emergence of the BIM technology shall fully deserved to be treated as a second innovation in construction industry. As a new technology which have been introduced to China in recent years, BIM technology already had its major application in foreigner countries .This paper focuses on the current status of BIM technology application in our country, especially on some small and medium enterprises using the traditional BIM technology to handle the project which have complex usage,creative deign and cost limitation. Firstly,we take a deep analysis on the initial application situation. Then we go through the practical application and analyse what benefit can be given to a project from BIM technology. Finally, analyse the problems and solutions in BIM application with consideration of Chinese building engineering development. Only after a careful analysis, a deep understanding of BIM, we can fully understand this new technology and make BIM to give its value to construction project.展开更多
The management of College Students’ status is a professional policy work. The point of regulating college students’learningbehavior is registration management. According to the analysis on the issue of popular educa...The management of College Students’ status is a professional policy work. The point of regulating college students’learningbehavior is registration management. According to the analysis on the issue of popular education stage of college registration management,it’s important to reinforce the registration management of affi liated college and put forward work ideas, formulate detailed measures. Thatcan regulate and optimize students’ learning behavior and promote school spirit, teaching style, study style, improve the effectiveness of theeducation of students.展开更多
Last June more than one thousand scientists from over 50 countries in the Pacific and other regions of the world gathered in Beijing of China and participated in the ⅩⅤⅢ Pacific Science Congress. This was an intern...Last June more than one thousand scientists from over 50 countries in the Pacific and other regions of the world gathered in Beijing of China and participated in the ⅩⅤⅢ Pacific Science Congress. This was an international general academic congress which had involved natural science, social science, engineering science,展开更多
BACKGROUND Although there is currently a wealth of evidence to indicate that maternal educational attainment is associated with gestational diabetes mellitus(GDM),the specific modifiable risk factors that mediate the ...BACKGROUND Although there is currently a wealth of evidence to indicate that maternal educational attainment is associated with gestational diabetes mellitus(GDM),the specific modifiable risk factors that mediate the causal relationship between these two variables have yet to be identified.AIM To identify the specific modifiable risk factors that mediate the causal relationship between the level of maternal education and GDM.METHODS Mendelian randomization(MR)was conducted using data from genome-wide association studies of European populations.We initially performed a two-sample MR analysis using data on genetic variants associated with the duration of education as instruments,and subsequently adopted a two-step MR approach using metabolic and lifestyle factors as mediators to examine the mechanisms underlying the relationship between the level of maternal education and risk of developing GDM.In addition,we calculated the proportions of total causal effects mediated by identified metabolic and lifestyle factors.RESULTS A genetically predicted higher educational attainment was found to be associated with a lower risk of developing GDM(OR:0.71,95%CI:0.60-0.84).Among the metabolic factors assessed,four emerged as potential mediators of the education-GDM association,which,ranked by mediated proportions,were as follows:Waist-to-hip-ratio(31.56%,95%CI:12.38%-50.70%),body mass index(19.20%,95%CI:12.03%-26.42%),high-density lipoprotein cholesterol(12.81%,95%CI:8.65%-17.05%),and apolipoprotein A-1(7.70%,95%CI:4.32%-11.05%).These findings proved to be robust to sensitivity analyses.CONCLUSION Our findings indicate a causal relationship between lower levels of maternal education and the risk of developing GDM can be partly explained by adverse metabolic profiles.展开更多
Farmers' professional cooperatives develop in various forms,and with the continuous improvement of development level,social effects have gradually appear.Based on the specific situation of farmers' professiona...Farmers' professional cooperatives develop in various forms,and with the continuous improvement of development level,social effects have gradually appear.Based on the specific situation of farmers' professional cooperatives in Shangqiu City,this paper expounded the development status of farmers' professional cooperatives in Shangqiu City,analyzed and discussed various problems encountered in the development process of farmers' professional cooperatives,and put forward some countermeasures and suggestions,such as establishing and perfecting cooperative rules and regulations,financing from multiple channels,introducing technical talents in various ways,breaking the information asymmetry restriction by various means,and giving full play to government functions,aiming to further promote standardized,large-scale,healthy and sustainable development of farmers' professional cooperatives.展开更多
People living near the equator more easily obtain adequate 25-hydroxyvitamin D [25(OH)D]. However, studies indicated that vitamin D deficiency is common even in the sunniest areas. We mainly analyzed the vitamin D sta...People living near the equator more easily obtain adequate 25-hydroxyvitamin D [25(OH)D]. However, studies indicated that vitamin D deficiency is common even in the sunniest areas. We mainly analyzed the vitamin D status and dietary patterns of men highly exposed to sunlight, and investigated the correlation of vitamin D status with dietary patterns and time for outdoor work or activities. The average vitamin D levels among men highly exposed to sunlight was sufficient, but parts of the population had vitamin D deficiency or insufficiency. Long-term vitamin D deficiency may correlate with obesity and hypertension. These results provide a scientific basis for future research.展开更多
Objective: To understand the status quo of PICC Catheter-associated Skin Impairment (CASI) in some hospitals at all levels in Jingzhou city, and to explore the risk factors for PICC Catheter-associated Skin Impairment...Objective: To understand the status quo of PICC Catheter-associated Skin Impairment (CASI) in some hospitals at all levels in Jingzhou city, and to explore the risk factors for PICC Catheter-associated Skin Impairment. Methods: From June 2019 to July 2020, a self-made questionnaire for CASI status was used to facilitate the extraction of CASI patients in PICC in some hospitals at all levels in Jingzhou city. Local skin lesions were collected and classified during PICC maintenance, and the damage types, occurrence frequency and related influencing factors of CASI were counted to identify independent risk factors. Results: In this study, there were 173 cases of CASI in PICC’s patients including local infection 56.1% (97/173), exudation at the puncture site 16.8% (29/173), irritant dermatitis 21.4% (37/173), allergic dermatitis 4.6% (8/173), and tension injury 1.2% (2/173). After univariate analysis, there were statistically significant differences between CASI occurrence type and duration of catheter wear, age, underlying disease, skin moisture and hyperhidrosis, PICC maintenance as required, hospital grade maintenance and intermittent chemotherapy (P < 0.05). Then, disordered multiple Logistic regression analysis was performed, and exudation at the puncture site was used as the reference group. The results showed that patients with PICC were more likely to have CASI if they were aged, long catheter time, had diabetes, had moist and sweaty skin, and were in the intermittent stage of chemotherapy. Conclusion: The incidence of CASI is high in patients aged 70 - 79 years, and local infection is the most common. PICC’s patients with diabetes are at high risk of CASI. PICC’s patients with excessive sweating are more likely to have CASI. The intermittent stage of chemotherapy is the excessive CASI;time with tube affects CASI occurrence.展开更多
In this study, the Palmer Drought Severity Index (PDSI) was used to analyze the average and extreme dry/wet states of Asia and North America from 1953 to 2003. The results indicate that the two continents underwent ...In this study, the Palmer Drought Severity Index (PDSI) was used to analyze the average and extreme dry/wet states of Asia and North America from 1953 to 2003. The results indicate that the two continents underwent drying trends during this period. Compared with North America, Asia showed more severe drought trends. However, more significant and regular seasonal variation for drought was found in North America. The driest regions in Asia were located in the northern region of China, Mongolia, and eastern mid-Siberian plateau. Most regions in central North America were relatively wetter than other regions. The northern and southwestern regions of North America, as well as the Atlantic and Pacific coastal areas, experienced the most drought during this period. A sharp increase of the drought area and the number of extreme drought events took place from 1997 to 2003 in both Asia and North America. Severe drought events were more likely to occur during the summer on both continents. Asia had the most extreme drought events during July, but North America reached its highest drought frequency from June to September. In Asia, a persistent increasing trend of extreme drought emerged throughout the studied period. However, a more complex evolution of drought emerged in North America: a decreasing trend appeared before the mid-1960s and an increasing trend appeared after the late 1970s. A relatively steady dry/wet status was observed between the mid-1960s and the late 1970s. The role of exceptional, extreme drought events with respect to the La Nin?a event was considered during 1997–2003.展开更多
The prevalence of HIV in high risk population is influenced significantly the behavioral and sociodemographic characteristics. However, considering the complexity of behavior among female sex workers, the relationship...The prevalence of HIV in high risk population is influenced significantly the behavioral and sociodemographic characteristics. However, considering the complexity of behavior among female sex workers, the relationship between a particular behavioral pattern and the HIV status of this “at risk” population assumes significance. Data generated in a community-based cross-sectional study earlier carried out to assess the prevalence estimates, at district level, of HIV status in eight districts of State of Andhra Pradesh, India was used to carry out factor analysis to explore the role of demographic and behavioral pattern and their relationship with the HIV status among female sex workers. Data on 3083 female sex workers in the study revealed that there existed nine patterns among demographic and behavioral characteristics, which explained 62% of the total variation through factor analysis. Further, cluster analysis was performed to identify the groups of individuals having similar characteristics. Two of those clusters had sizeable numbers having similar characteristics. FSWs belonging to cluster 2 had significantly high risk factors compared with Cluster 1. The overall prevalence of HIV was 11.4% (10.6% in cluster 1 and 15.9% in cluster 2) among high risk population. There exists a strong relationship between behavioral patterns and HIV positive.展开更多
Corn deep processing industry is an important follow-up industry for corn production and processing. Shandong has numerous largescale corn processing enterprises and is one of the fast-growing regions in China for dee...Corn deep processing industry is an important follow-up industry for corn production and processing. Shandong has numerous largescale corn processing enterprises and is one of the fast-growing regions in China for deep processing of corn. The status of production and processing of corn in the major corn-producing areas of Shandong Province such as Dezhou,Liaocheng and Tai'an was investigated on the spot. It was found that the development of the corn industry in Shandong also has many problems,such as the mismatch between corn demand and production areas,the excessively small planting area of special corn and the poor communication between technology and demand,resulting in barriers in technology and raw materials in the production and processing links of corn and making it difficult to form a complete industrial chain system. According to the actual investigation,a highly efficient agricultural industry safety review mechanism was established based on the sound judgement of industrial safety to ensure the safety of the company's development,and at the same time,the interpretation and promotion of the strategy of going abroad was strengthened,so as to provide a full range of information services for corn processing enterprises and help to further develop and optimize the corn industry in Shandong.展开更多
This survey sets students in a Chongqing university as examples and on this basis, combining the author's perennial professional career planning education experience to analyze and study university students' profess...This survey sets students in a Chongqing university as examples and on this basis, combining the author's perennial professional career planning education experience to analyze and study university students' professional career planning status quo in recent years and the deep-seated reasons for the difficulties of career planning, employment and adaptability to explore more effective, more proactive methods for university students' career planning education tasks.展开更多
Land has always been an indispensable element in farmers’ production activities,and it is the root of farmers’ survival. Under the background of rural revitalization,land transfer has become an important means of bo...Land has always been an indispensable element in farmers’ production activities,and it is the root of farmers’ survival. Under the background of rural revitalization,land transfer has become an important means of boosting rural revitalization. In the process of implementing the rural revitalization strategy,how to effectively solve the problems in rural land transfer,such as fragmentation,decentralization,low utilization rate,breach of contracts and difficult financing,is an important aspect of promoting rural modernization. In this paper,the literature on land transfer at home and abroad is sorted out,the current research status and the problems of land transfer under the background of rural revitalization are summarized and consolidated,and corresponding solutions and prospects are put forward. This is of practical significance to further study the land transfer under the background of rural revitalization in China.展开更多
With the rapid advancement of urban construction,urban subway construction in China has entered an advanced development stage and the thermal environment of subway stations has become a key factor affecting passengers...With the rapid advancement of urban construction,urban subway construction in China has entered an advanced development stage and the thermal environment of subway stations has become a key factor affecting passengers'thermal comfort.To further understand the actual situation of the thermal environment of subway stations,field measurement and CFD simulation were carried out on a subway station hall in Wuhan from July to August 2021,and the thermal environment changes and influencing factors during subway operation were compared and analyzed.The present situation of the thermal environment in subway stations was analyzed,and some suggestions and measures for improving the thermal environment were put forward.展开更多
Based on field survey and research of Hanzhong, relocation of Nanzheng County was explored and the existing problems were analyzed. Furthermore, the re- gional characters of Nanzheng County were investigated to analyz...Based on field survey and research of Hanzhong, relocation of Nanzheng County was explored and the existing problems were analyzed. Furthermore, the re- gional characters of Nanzheng County were investigated to analyze the feasibility and necessity of relocation with lots of data and evaluation was made on relocation of Nanzheng County. In addition, the existing problems of relocation were concluded and the prospect of the county was discussed, which is of significance for relocation in Nanzheng County and even southern Shaanxi Province.展开更多
We conducted a study in Komto Forest in East WoUega Zone, Oromia National Regional State, West Ethiopia for determining vegetation structure and regeneration status in this forest. We systematically sampled 53 quadra...We conducted a study in Komto Forest in East WoUega Zone, Oromia National Regional State, West Ethiopia for determining vegetation structure and regeneration status in this forest. We systematically sampled 53 quadrats (20 m ×20 m) along line transects radiating from the peak of Komto Mountain in eight directions. Vegetation parameters such as DBH, height, seedling and sapling density of woody species, and location and altitude of each quadrat were recorded. In total, 103 woody plant species of 87 genera and 45 families were identified. Analysis of selected tree species revealed different population structures. Generally, the forest was dominated by small trees and shrubs characteristic of secondary regeneration. Observations on the regeneration of the forest indicated that there are woody species that require urgent conservation measures. Based on the results of this study, we recommend detailed ecological studies of various environmental factors such as soil type and properties, and ethnobotanical studies to explore indigenous knowledge on uses of plants.展开更多
Campus landscape as an important campus green space carries such important functions as traffic, learning, communication, recreation, and entertainment. Landscape design of campus green spaces should not only be pract...Campus landscape as an important campus green space carries such important functions as traffic, learning, communication, recreation, and entertainment. Landscape design of campus green spaces should not only be practical and beautiful, but also be able to show the natural and cultural atmosphere of campus, and the charm of the university based on its regional features, ecological environment and historical context. Through further analysis of green space landscape on Haidian Campus of Hainan University,this paper summarized the advantages and disadvantages of its green space landscape, and proposed the strategies for improving campus green space landscape of Hainan University from the perspectives of regionality, ecology and individuality.展开更多
The study was conducted on Berbere Forest in Bale Zone of Oromia Regional State, south east of Ethiopia with the objective of determining the structural analysis and natural regeneration status of the forest. Systemat...The study was conducted on Berbere Forest in Bale Zone of Oromia Regional State, south east of Ethiopia with the objective of determining the structural analysis and natural regeneration status of the forest. Systematic sampling method was used to collect vegetation data. Seventy two nest quadrat sizes of 400 m2 (20 m × 20 m) for trees and shrubs were used. Within the main quadrat, two opposite side of each sub-quadrat of 25 m2 (5 m × 5 m) for sapling, 4 m2 (2 m × 2 m) for seedling of woody plants. The diameter and height were measured for all individual trees and shrubs having DBH (Diameter at Breast Height) ≥ 10 cm thick and ≥2 m height by using a diameter tape or caliper and clinometer respectively. For description and analysis of vegetation structure Diameter at Breast Height (DBH), basal area, tree density, height, frequency and important value index were used. Structural analysis of some selected tree species was revealed four different population patterns (bell shaped, inverted J-shaped, irregular and U-shaped). The total basal area of Berbere forest was 87.49 m2/ha, but most of the basal area was contributed by few large sized Moraceae family (Ficus vasta, Ficus ovate and Ficus thonningii) plant species. Analysis of regeneration status of woody plants in the forest showed 37.09% trees/shrubs species exhibited “good”, 19.35% showed “fair”, 6.45% showed “poor” and 25.81% trees/shrubs species were “not regenerating” at all and 11.29% trees/shrubs species were available only in sapling or seedling stage. Studies on the structure and regeneration of the forest indicated that there are species that require urgent conservation measures. Therefore, based on the results of this study, we recommended detail regenerating studies of seed bank in relation to various environmental factors such as soil type and properties.展开更多
基金Supported by Youth Project of Natural Science Foundation of Anhui Province(2008085QC135)Postdoctoral Workstation Project of West Anhui University(WXBSH2020003)+4 种基金Key Program of Natural Science Research Project for Anhui Universities(KJ2021A0954)Forestry Carbon Sequestration Self-funded Science and Technology Project of Anhui Province(LJH[2022]267)Subject of Lu'an Forestry Bureau(0045021093)School-level Quality Engineering Project of West Anhui University(wxxy2021017)Provincial Quality Engineering Project of West Anhui University(2022jyxm1765).
文摘To figure out the disease occurrence of landscape plants in the main urban area of Lu'an City,the author investigated the disease occurrence of landscape plants in park green space,residential green space,unit attached green space and main road in the area under administration.The survey results showed that there were 29 species of urban landscape plant diseases,mainly powdery mildew and spot diseases.According to the characteristics of the diseases,the causes and problems of the diseases were analyzed,and the corresponding prevention and control measures were put forward.
基金Supported by the National Natural Science Foundation of China,No.30224801
文摘AIM: To determine the citation status in 2004 and the citation trend of WJG by analyzing all articles cited by WJG and all WJG articles cited by SCI journals during 1998-2004.METHODS: The total number of published articles and reference citations in WJG, authors' self-citations, WJG's self-citations, citations of WJG articles by SCI journals and inappropriate citations in WJG during 1998-2004 were statistically analyzed. Data on self-citations of the articles published between 1998 and August 2004 (Issues 1-16)were from ISI SCI-E, and data on self-citations of articles published after August 2004 (Issues 17-24) were from the WJG Editorial Office. Data on citations of WJG articles by other journals between 1998 and August 2004 were from ISI SCI-E.RESULTS: Annual number of published articles: WJG published 179, 144, 211, 174, 236, 634 and 830 articles,respectively, in 1998, 1999, 2000, 2001, 2002, 2003 and 2004. The number in 2004 increased by 594, compared to that in 2002, giving an increased rate of 251.7%. Annual references cited by WJG were 2 123, 2 125, 6 244,8 883, 11 442, 23 218 and 25 971, respectively, in 1998-2004.The average number was 31.3 per WJG article in 2004,which was less than that (48.5) in 2002, giving a reduction rate of 35.5%. Authors of WJG cited 125, 126, 343, 210,354, 310 and 470 of their own published articles,respectively, in 1998-2004. The average number of authors'self-citations was 0.57 per WJG article in 2004, which was decreased by 0.93 or 62.0%, compared with that in 2002.Annual numbers of journal's self-citations: Authors of WJG articles cited 5, 7, 373, 733, 1474, 1947 and 1412 of WJG articles, respectively, in 1998-2004. The average number of journal's self-citations was 1.70 per WJG article in 2004,which decreased by 4.55 or 72.8%. No WJG article was cited in 1998 by other SCI journals. However, the number of citations steadily increased afterwards, with 16, 18, 39,85, 372 and 580, respectively, in 1999-2004. The average number of citations by other SCI journals was 0.11, 0.09,0.22, 0.36, 0.59 and 1.06 per WJG article, respectively,1999-2004 (January-August). There was an increase by 582%, when comparing the citation numbers between 2004and 2002. Annual WJG self-citation rates and citation rates of WJG articles by other SCI journals: WJG self-citation rates were 30.43%, 95.40%, 95.07%, 94.55%, 83.96%and 67.47%, respectively, in 1999-2004 (January-August).Compared with 2002, the self-citation rate in 2004decreased by 26.87%. The citation rates of WJG articles by other SCI journals were 69.57%, 4.60%, 4.93%, 5.45%,16.04%, and 32.53%, respectively, in 1999-2004 (January-August). Compared with 2002, the citation rate in 2004decreased by 26.87%. There were 8, 19, 218, 274, 461,698 and 574 inappropriate citations, respectively, in 1998-2004.The average inappropriate citation in 2004 was 0.69 per article, which represents a decrease of 1.26, compared with that in 2002. Inappropriate citations were mostly those with the differences between the two sides of the hyphens of 5-9, and the proportions of inappropriate citations within the three subsections of the differences between the two sides of the hyphens (5-9, 10-19, and >=20) were approximately 7:2:1. In addition, inappropriate citations mostly occurred with frequencies of 1-3 in the articles,and the proportion of inappropriate citations within the two frequency subsections (1-3 and >3) have been approximately 4:1 since 1999.CONCLUSIONS: In 2004, the average number of reference citations, authors' self-citations and journal's self-citations were 31.3, 0.57 and 1.70 per article, respectively, which represents a decrease in the numbers by 35.5%. 62.0%,and 72.8% respectively compared to the corresponding numbers in 2002. WJG self-citation rate was 67.47% in 2004 (January-August), which was a decrease by26.87%,compared with 2002. The citation rate of WJG articles by other SCI journals was 32.53% in 2004 (January-August),an increase of 26.87%, compared to 2002. There were 574inappropriate citations in 2004, with an average of 0.69per article, which represents a decrease of 1.26, compared with that in 2002. These figures demonstrate that the overall citation status of WJG is improving.
文摘Information age and the rapid development of information technology has brought the infinite creativity and possibility for all works in modem society. If CAD technology is first innovation of information technology in construction industry, then the emergence of the BIM technology shall fully deserved to be treated as a second innovation in construction industry. As a new technology which have been introduced to China in recent years, BIM technology already had its major application in foreigner countries .This paper focuses on the current status of BIM technology application in our country, especially on some small and medium enterprises using the traditional BIM technology to handle the project which have complex usage,creative deign and cost limitation. Firstly,we take a deep analysis on the initial application situation. Then we go through the practical application and analyse what benefit can be given to a project from BIM technology. Finally, analyse the problems and solutions in BIM application with consideration of Chinese building engineering development. Only after a careful analysis, a deep understanding of BIM, we can fully understand this new technology and make BIM to give its value to construction project.
文摘The management of College Students’ status is a professional policy work. The point of regulating college students’learningbehavior is registration management. According to the analysis on the issue of popular education stage of college registration management,it’s important to reinforce the registration management of affi liated college and put forward work ideas, formulate detailed measures. Thatcan regulate and optimize students’ learning behavior and promote school spirit, teaching style, study style, improve the effectiveness of theeducation of students.
文摘Last June more than one thousand scientists from over 50 countries in the Pacific and other regions of the world gathered in Beijing of China and participated in the ⅩⅤⅢ Pacific Science Congress. This was an international general academic congress which had involved natural science, social science, engineering science,
文摘BACKGROUND Although there is currently a wealth of evidence to indicate that maternal educational attainment is associated with gestational diabetes mellitus(GDM),the specific modifiable risk factors that mediate the causal relationship between these two variables have yet to be identified.AIM To identify the specific modifiable risk factors that mediate the causal relationship between the level of maternal education and GDM.METHODS Mendelian randomization(MR)was conducted using data from genome-wide association studies of European populations.We initially performed a two-sample MR analysis using data on genetic variants associated with the duration of education as instruments,and subsequently adopted a two-step MR approach using metabolic and lifestyle factors as mediators to examine the mechanisms underlying the relationship between the level of maternal education and risk of developing GDM.In addition,we calculated the proportions of total causal effects mediated by identified metabolic and lifestyle factors.RESULTS A genetically predicted higher educational attainment was found to be associated with a lower risk of developing GDM(OR:0.71,95%CI:0.60-0.84).Among the metabolic factors assessed,four emerged as potential mediators of the education-GDM association,which,ranked by mediated proportions,were as follows:Waist-to-hip-ratio(31.56%,95%CI:12.38%-50.70%),body mass index(19.20%,95%CI:12.03%-26.42%),high-density lipoprotein cholesterol(12.81%,95%CI:8.65%-17.05%),and apolipoprotein A-1(7.70%,95%CI:4.32%-11.05%).These findings proved to be robust to sensitivity analyses.CONCLUSION Our findings indicate a causal relationship between lower levels of maternal education and the risk of developing GDM can be partly explained by adverse metabolic profiles.
文摘Farmers' professional cooperatives develop in various forms,and with the continuous improvement of development level,social effects have gradually appear.Based on the specific situation of farmers' professional cooperatives in Shangqiu City,this paper expounded the development status of farmers' professional cooperatives in Shangqiu City,analyzed and discussed various problems encountered in the development process of farmers' professional cooperatives,and put forward some countermeasures and suggestions,such as establishing and perfecting cooperative rules and regulations,financing from multiple channels,introducing technical talents in various ways,breaking the information asymmetry restriction by various means,and giving full play to government functions,aiming to further promote standardized,large-scale,healthy and sustainable development of farmers' professional cooperatives.
基金funded by a Special Scientific Research Fund of Public Welfare Profession of Ministry of Health of China(Grant No.201202012)a fund supported by the Science and Technology Ministry of China(Grant No.2012BAI02B03)a grant from the National Natural Science Foundation of China(Grant No.81372992)
文摘People living near the equator more easily obtain adequate 25-hydroxyvitamin D [25(OH)D]. However, studies indicated that vitamin D deficiency is common even in the sunniest areas. We mainly analyzed the vitamin D status and dietary patterns of men highly exposed to sunlight, and investigated the correlation of vitamin D status with dietary patterns and time for outdoor work or activities. The average vitamin D levels among men highly exposed to sunlight was sufficient, but parts of the population had vitamin D deficiency or insufficiency. Long-term vitamin D deficiency may correlate with obesity and hypertension. These results provide a scientific basis for future research.
文摘Objective: To understand the status quo of PICC Catheter-associated Skin Impairment (CASI) in some hospitals at all levels in Jingzhou city, and to explore the risk factors for PICC Catheter-associated Skin Impairment. Methods: From June 2019 to July 2020, a self-made questionnaire for CASI status was used to facilitate the extraction of CASI patients in PICC in some hospitals at all levels in Jingzhou city. Local skin lesions were collected and classified during PICC maintenance, and the damage types, occurrence frequency and related influencing factors of CASI were counted to identify independent risk factors. Results: In this study, there were 173 cases of CASI in PICC’s patients including local infection 56.1% (97/173), exudation at the puncture site 16.8% (29/173), irritant dermatitis 21.4% (37/173), allergic dermatitis 4.6% (8/173), and tension injury 1.2% (2/173). After univariate analysis, there were statistically significant differences between CASI occurrence type and duration of catheter wear, age, underlying disease, skin moisture and hyperhidrosis, PICC maintenance as required, hospital grade maintenance and intermittent chemotherapy (P < 0.05). Then, disordered multiple Logistic regression analysis was performed, and exudation at the puncture site was used as the reference group. The results showed that patients with PICC were more likely to have CASI if they were aged, long catheter time, had diabetes, had moist and sweaty skin, and were in the intermittent stage of chemotherapy. Conclusion: The incidence of CASI is high in patients aged 70 - 79 years, and local infection is the most common. PICC’s patients with diabetes are at high risk of CASI. PICC’s patients with excessive sweating are more likely to have CASI. The intermittent stage of chemotherapy is the excessive CASI;time with tube affects CASI occurrence.
基金supported by the NSFC project (Grant Nos. 40905037, 40775055,40705016, and 40828004)the NSFC key program(Grant No. 40830956)
文摘In this study, the Palmer Drought Severity Index (PDSI) was used to analyze the average and extreme dry/wet states of Asia and North America from 1953 to 2003. The results indicate that the two continents underwent drying trends during this period. Compared with North America, Asia showed more severe drought trends. However, more significant and regular seasonal variation for drought was found in North America. The driest regions in Asia were located in the northern region of China, Mongolia, and eastern mid-Siberian plateau. Most regions in central North America were relatively wetter than other regions. The northern and southwestern regions of North America, as well as the Atlantic and Pacific coastal areas, experienced the most drought during this period. A sharp increase of the drought area and the number of extreme drought events took place from 1997 to 2003 in both Asia and North America. Severe drought events were more likely to occur during the summer on both continents. Asia had the most extreme drought events during July, but North America reached its highest drought frequency from June to September. In Asia, a persistent increasing trend of extreme drought emerged throughout the studied period. However, a more complex evolution of drought emerged in North America: a decreasing trend appeared before the mid-1960s and an increasing trend appeared after the late 1970s. A relatively steady dry/wet status was observed between the mid-1960s and the late 1970s. The role of exceptional, extreme drought events with respect to the La Nin?a event was considered during 1997–2003.
文摘The prevalence of HIV in high risk population is influenced significantly the behavioral and sociodemographic characteristics. However, considering the complexity of behavior among female sex workers, the relationship between a particular behavioral pattern and the HIV status of this “at risk” population assumes significance. Data generated in a community-based cross-sectional study earlier carried out to assess the prevalence estimates, at district level, of HIV status in eight districts of State of Andhra Pradesh, India was used to carry out factor analysis to explore the role of demographic and behavioral pattern and their relationship with the HIV status among female sex workers. Data on 3083 female sex workers in the study revealed that there existed nine patterns among demographic and behavioral characteristics, which explained 62% of the total variation through factor analysis. Further, cluster analysis was performed to identify the groups of individuals having similar characteristics. Two of those clusters had sizeable numbers having similar characteristics. FSWs belonging to cluster 2 had significantly high risk factors compared with Cluster 1. The overall prevalence of HIV was 11.4% (10.6% in cluster 1 and 15.9% in cluster 2) among high risk population. There exists a strong relationship between behavioral patterns and HIV positive.
基金Supported by Research on International Agricultural Investment M&A and Risk Prevention and Control System(4005-35916005)
文摘Corn deep processing industry is an important follow-up industry for corn production and processing. Shandong has numerous largescale corn processing enterprises and is one of the fast-growing regions in China for deep processing of corn. The status of production and processing of corn in the major corn-producing areas of Shandong Province such as Dezhou,Liaocheng and Tai'an was investigated on the spot. It was found that the development of the corn industry in Shandong also has many problems,such as the mismatch between corn demand and production areas,the excessively small planting area of special corn and the poor communication between technology and demand,resulting in barriers in technology and raw materials in the production and processing links of corn and making it difficult to form a complete industrial chain system. According to the actual investigation,a highly efficient agricultural industry safety review mechanism was established based on the sound judgement of industrial safety to ensure the safety of the company's development,and at the same time,the interpretation and promotion of the strategy of going abroad was strengthened,so as to provide a full range of information services for corn processing enterprises and help to further develop and optimize the corn industry in Shandong.
文摘This survey sets students in a Chongqing university as examples and on this basis, combining the author's perennial professional career planning education experience to analyze and study university students' professional career planning status quo in recent years and the deep-seated reasons for the difficulties of career planning, employment and adaptability to explore more effective, more proactive methods for university students' career planning education tasks.
文摘Land has always been an indispensable element in farmers’ production activities,and it is the root of farmers’ survival. Under the background of rural revitalization,land transfer has become an important means of boosting rural revitalization. In the process of implementing the rural revitalization strategy,how to effectively solve the problems in rural land transfer,such as fragmentation,decentralization,low utilization rate,breach of contracts and difficult financing,is an important aspect of promoting rural modernization. In this paper,the literature on land transfer at home and abroad is sorted out,the current research status and the problems of land transfer under the background of rural revitalization are summarized and consolidated,and corresponding solutions and prospects are put forward. This is of practical significance to further study the land transfer under the background of rural revitalization in China.
文摘With the rapid advancement of urban construction,urban subway construction in China has entered an advanced development stage and the thermal environment of subway stations has become a key factor affecting passengers'thermal comfort.To further understand the actual situation of the thermal environment of subway stations,field measurement and CFD simulation were carried out on a subway station hall in Wuhan from July to August 2021,and the thermal environment changes and influencing factors during subway operation were compared and analyzed.The present situation of the thermal environment in subway stations was analyzed,and some suggestions and measures for improving the thermal environment were put forward.
基金Supported by the Fundamental Research Funds for the Central Universities(GK261002145)Key Teaching Reform Research of Shaanxi Normal University in 2014(14JG07)Teacher Education Program of Shaanxi Normal University in 2014(JSJY2014J014)~~
文摘Based on field survey and research of Hanzhong, relocation of Nanzheng County was explored and the existing problems were analyzed. Furthermore, the re- gional characters of Nanzheng County were investigated to analyze the feasibility and necessity of relocation with lots of data and evaluation was made on relocation of Nanzheng County. In addition, the existing problems of relocation were concluded and the prospect of the county was discussed, which is of significance for relocation in Nanzheng County and even southern Shaanxi Province.
文摘We conducted a study in Komto Forest in East WoUega Zone, Oromia National Regional State, West Ethiopia for determining vegetation structure and regeneration status in this forest. We systematically sampled 53 quadrats (20 m ×20 m) along line transects radiating from the peak of Komto Mountain in eight directions. Vegetation parameters such as DBH, height, seedling and sapling density of woody species, and location and altitude of each quadrat were recorded. In total, 103 woody plant species of 87 genera and 45 families were identified. Analysis of selected tree species revealed different population structures. Generally, the forest was dominated by small trees and shrubs characteristic of secondary regeneration. Observations on the regeneration of the forest indicated that there are woody species that require urgent conservation measures. Based on the results of this study, we recommend detailed ecological studies of various environmental factors such as soil type and properties, and ethnobotanical studies to explore indigenous knowledge on uses of plants.
基金Sponsored by 2016 Graduates’ Practice Innovation Program of Hainan University,Youth Fund of Hainan University(QNJJ1249)
文摘Campus landscape as an important campus green space carries such important functions as traffic, learning, communication, recreation, and entertainment. Landscape design of campus green spaces should not only be practical and beautiful, but also be able to show the natural and cultural atmosphere of campus, and the charm of the university based on its regional features, ecological environment and historical context. Through further analysis of green space landscape on Haidian Campus of Hainan University,this paper summarized the advantages and disadvantages of its green space landscape, and proposed the strategies for improving campus green space landscape of Hainan University from the perspectives of regionality, ecology and individuality.
文摘The study was conducted on Berbere Forest in Bale Zone of Oromia Regional State, south east of Ethiopia with the objective of determining the structural analysis and natural regeneration status of the forest. Systematic sampling method was used to collect vegetation data. Seventy two nest quadrat sizes of 400 m2 (20 m × 20 m) for trees and shrubs were used. Within the main quadrat, two opposite side of each sub-quadrat of 25 m2 (5 m × 5 m) for sapling, 4 m2 (2 m × 2 m) for seedling of woody plants. The diameter and height were measured for all individual trees and shrubs having DBH (Diameter at Breast Height) ≥ 10 cm thick and ≥2 m height by using a diameter tape or caliper and clinometer respectively. For description and analysis of vegetation structure Diameter at Breast Height (DBH), basal area, tree density, height, frequency and important value index were used. Structural analysis of some selected tree species was revealed four different population patterns (bell shaped, inverted J-shaped, irregular and U-shaped). The total basal area of Berbere forest was 87.49 m2/ha, but most of the basal area was contributed by few large sized Moraceae family (Ficus vasta, Ficus ovate and Ficus thonningii) plant species. Analysis of regeneration status of woody plants in the forest showed 37.09% trees/shrubs species exhibited “good”, 19.35% showed “fair”, 6.45% showed “poor” and 25.81% trees/shrubs species were “not regenerating” at all and 11.29% trees/shrubs species were available only in sapling or seedling stage. Studies on the structure and regeneration of the forest indicated that there are species that require urgent conservation measures. Therefore, based on the results of this study, we recommended detail regenerating studies of seed bank in relation to various environmental factors such as soil type and properties.