Background: Critical Thinking (CT) dispositions in nursing are prominent predictors of competence in delivering high-quality care, and of professionalism, in newly graduated nurses. CT skills, in isolation of CT dispo...Background: Critical Thinking (CT) dispositions in nursing are prominent predictors of competence in delivering high-quality care, and of professionalism, in newly graduated nurses. CT skills, in isolation of CT dispositions, do not guarantee success in the workplace, because Critical Thinking Dispositions (CTD) are important elements of intellectual reasoning that simulate a person towards using the CT skills. Therefore, nursing educational programs should promote lifelong learning rather than focusing on transferring the content of nursing knowledge only. And for this purpose, quality education is the key. Education should focus on teaching from diverse perspectives, incorporating various teaching learning strategies that are congruent with the modern era. Purpose: The purpose of this study is to explore critical thinking dispositions among final year Baccalaureate Nursing students of various military colleges of nursing, in Pakistan. Methodology: A descriptive qualitative exploratory study design was used to investigate the CTD of BSc final year nursing students. The study population included twelve willing nursing students, from six military colleges across the country. Demographic information and consent was taken from the participants of the study. In-depth interviews, through a semi structured interview guide, and probes were used to obtain data related to personal experiences of CTD amongst the nursing students. Results: Data analysis showed two broad themes: 1) Perceptions of CT, and 2) Experiences of CT dispositions. In theme one, the emerging category was: Clarity of CT;whereas in theme two, the categories that emerged were: a) Truth Seeking, b) Open Mindedness, c) Inquisitiveness, and d) Self Organization. Conclusion: The findings of the study revealed positive dispositions towards truth seeking, open mindedness, and self-organization, whereas disposition towards inquisitiveness was weak. Self-confidence and maturity also emerged as positive factors that the students possessed. This study recommends that faculty and learners should extend their concept of CTD, and emphasizes its application in daily routine. Additionally, faculty should modify their instructional strategies and focus on the cultivation of dispositions of inquisitiveness, curiosity, and allow questioning by students in the class.展开更多
The article is devoted to proving the inconsistency of set theory arising from the existence of strange trees. All steps of the proof rely on common informal set-theoretic reasoning, but they take into account the pro...The article is devoted to proving the inconsistency of set theory arising from the existence of strange trees. All steps of the proof rely on common informal set-theoretic reasoning, but they take into account the prohibitions that were introduced into axiomatic set theories in order to overcome the difficulties encountered by the naive Cantor set theory. Therefore, in fact, the article is about proving the inconsistency of existing axiomatic set theories, in particular, the ZFC theory.展开更多
This article illustrates the procedural specificities of the following eight contemporary methods of final disposition: (1) Natural Organic Reduction, (2) Alkaline Hydrolysis, (3) Plastination, (4) Body Farm, (5) Cryo...This article illustrates the procedural specificities of the following eight contemporary methods of final disposition: (1) Natural Organic Reduction, (2) Alkaline Hydrolysis, (3) Plastination, (4) Body Farm, (5) Cryonics, (6) Memorial Reefs, (7) Organic Burial Pods, and (8) Space Funeral. After comparing the differences in the duration of body-processing time of all eight methods, Alkaline Hydrolysis was determined to take the shortest length of time to complete (6 - 8 hours), while Plastination was deemed to take the longest length of time to complete (1 year). Additionally, with regard to comparing the differences in cost to the consumer, Plastination and Body Farm were both deemed to be of the lowest cost ($0/body donation only), while Cryonics was deemed to be the most expensive ($200,000+ due to ongoing subfreezing storage and maintenance fees). Finally, after comparing the differences in each state’s set of sanctioned methods of final disposition, it was established that the seventeen states that restrict their residents’ options the most, permitting only two out of the eight contemporary options, include Alaska, Arkansas, Delaware, Indiana, Iowa, Kentucky, Louisiana, Massachusetts, Mississippi, Montana, Nebraska, New Hampshire, New Mexico, Pennsylvania, Rhode Island, South Dakota, and Wisconsin, and that the two states that restrict their residents the least, permitting six out of the eight contemporary options include California and Florida.展开更多
Objective:To identify the attitudes of infertile couples toward their surplus frozen embryos.Methods:This study was according to PRISMA-ScR as the guideline for scoping review.Studies that assessed the attitudes of pa...Objective:To identify the attitudes of infertile couples toward their surplus frozen embryos.Methods:This study was according to PRISMA-ScR as the guideline for scoping review.Studies that assessed the attitudes of patients or infertile couples who had surplus embryos were included.We conducted systematic searches in English studies from April 2011-April 2021 using 7 databases:PubMed,Science Direct,EBSCO,Scopus,the Cochrane Library,Sage Journals,and Google Scholar.Data were charted based on author,year of publication,country,purpose,data collection,key findings,and research focus/domain.Results:A total of 37 research articles were included in the analysis.Their attitudes encompassed:supporting the donation of the surplus embryos for both research and reproductive purposes,continuing to store the frozen embryos,and disposing of the surplus embryos.Conclusions:Most of the infertile patients support donating their surplus embryos for research and reproductive purposes.展开更多
With rapid development of economy and emergence of more and more high-grade residences,it had highlighted that high-grade residence was the inevitable tendency of economic development and urban construction.Based on t...With rapid development of economy and emergence of more and more high-grade residences,it had highlighted that high-grade residence was the inevitable tendency of economic development and urban construction.Based on the fact that high-grade residences paid more attention to harmony of human and architecture with nature and required higher for landscaping,the paper emphasized that landscape quality of high-grade residences was the key factor deciding quality of the residence.In view of insufficiencies of plant landscaping planning in high-grade residences at home and abroad,by taking high-grade residences in Hangzhou City for example,analysis had been conducted by selecting typical cases.It pointed out that plants disposition in high-grade residences was unreasonable,architectures and landscapes were isolated,and greening ratio was stressed while design was neglected.And then,corresponding solutions had been proposed.In terms of plants selection,it should reasonably utilize native tree species,and properly select new and high-quality plant species.In terms of harmonious unity between plant landscape and architecture,it should lay stress on unity between sensory design and comfort design.In terms of plant design and disposition,it should stick to the theme of "residential environment",so as to rationalize plant design and disposition,and create more comfortable residential environment.展开更多
Based on relevant materials, the paper had analyzed the macro-function of roadside trees from the perspectives of urban eco-environment construction and urban plants landscape construction. By taking Yangling City as ...Based on relevant materials, the paper had analyzed the macro-function of roadside trees from the perspectives of urban eco-environment construction and urban plants landscape construction. By taking Yangling City as the demonstration area, the field study had been conducted on trees along 38 roads, which had been analyzed from the aspects of the species of roadside trees, disposition modes and seasonable change. It had found that roadside trees were abundant, including 27 species belonging to 22 families, but the disposition mode was simple. In view of existing problems, suggestions had been proposed. It should make use of native tree species to construct regional characteristic roads; enhance evergreen tree species and enrich seasonable scenery; cultivate fast-growing and slowly-growing tree species alternately and avoid landscape blank; dispose upper, middle and lower layer of plants species reasonably and construct multiple layers of plants landscape. Several good roadside tree species had been recommended, so as to provide scientific reference for roadside greening construction.展开更多
Based on survey of plant species and disposition in major gardens at arid valley and optimization of plant disposition in Sichuan University for Nationalities,the study pointed out the overall target for disposition o...Based on survey of plant species and disposition in major gardens at arid valley and optimization of plant disposition in Sichuan University for Nationalities,the study pointed out the overall target for disposition optimization of garden plants in arid valley,concluded the principles and approaches to optimize garden plant disposition at arid valley and highlight garden features at arid valley,emphasized the vital significance to develop local wild plant resources and introduce exotic garden plants.展开更多
With ecological theory followed during disposition and application of landscape plants in residential area as the guidance,ecological landscape concept was established.It emphasized that landscape plants disposition s...With ecological theory followed during disposition and application of landscape plants in residential area as the guidance,ecological landscape concept was established.It emphasized that landscape plants disposition should aim at making the nature reappear,ameliorating and maintaining ecological balance in residential area,with harmonious coexistence between human and nature as the goal,and with systematicness of landscape greening,diversity of biological development and sustainability of plant landscaping as the mission,so as to achieve plane systematicness,spatial hierarchy and temporal relevance.展开更多
Aim: This study aimed to investigate critical thinking disposition among nurses working in Public Hospitals in Port-Said Governorate.Methods: A descriptive research design was conducted in this study. Totally 196 resp...Aim: This study aimed to investigate critical thinking disposition among nurses working in Public Hospitals in Port-Said Governorate.Methods: A descriptive research design was conducted in this study. Totally 196 respondents were chosen by systemic random sampling, to take part in the study as the sample. Data was collected from April to September in 2015. Tools of data collection: A personal and job characteristics data sheet and California Critical Thinking Disposition Inventory(CCTDI) were used. Results: The results revealed that the total critical thinking disposition score mean was 257.05 ± 20.16 and the highest score mean was 48.67 ± 6.28 for inquisitiveness subscale, while the lowest score mean was 21.36 ± 7.19 for the truth-seeking subscale. Also, none of the personal&job characteristics showed statistically significant relations with the total critical thinking disposition. Conclusion: More than three quarters of the nurses had an ambivalent disposition toward critical thinking, and most nurses' scores indicated a negative tendency towards truth-seeking. So the findings pointed for upgrading nurses' critical thinking through educational programs and a need for more problem-based learning with advanced teaching strategies in clinical areas.展开更多
With the increase of pipelines, corrosion leakage accidents happen frequently. Therefore, nondestructive testing technology is important for ensuring the safe operation of the pipelines and energy mining. In this pape...With the increase of pipelines, corrosion leakage accidents happen frequently. Therefore, nondestructive testing technology is important for ensuring the safe operation of the pipelines and energy mining. In this paper, the structure and principle of magnetic flux leakage (MFL) in-line inspection system is introduced first. Besides, a mathematic model of the system according to the ampere circuit rule, flux continuity theorem, and column coordinate transform is built, and the magnetic flux density in every point of space is calculated based on the theory of finite element analysis. Then we analyze and design the disposition of measurement section probes and sensors combining both three-axis MFL in-line inspection and multi-sensor fusion technology. Its advantage is that the three-axis changes of magnetic flux leakage field are measured by the multi-probes at the same time, so we can determine various defects accurately. Finally, the theory of finite element analysis is used to build a finite element simulation model, and the relationship between defects and MFL inspection signals is studied. Simulation and experiment results verify that the method not only enhances the detection ability to different types of defects but also improves the precision and reliability of the inspection system.展开更多
On the basis of investigating vertical greening in urban districts of Chongqing City, major problems were analyzed, dominant greening patterns were summarized, and major plant species suitable for the vertical greenin...On the basis of investigating vertical greening in urban districts of Chongqing City, major problems were analyzed, dominant greening patterns were summarized, and major plant species suitable for the vertical greening of urban districts in Chongqing City were given. On this basis, key technologies and development prospects of the vertical greening were explored.展开更多
This paper explores the disposition effect, the tendency of investors to hold losing investments too long and sell winning investments too soon, by analyzing a unique data set that consists of the buying and selling p...This paper explores the disposition effect, the tendency of investors to hold losing investments too long and sell winning investments too soon, by analyzing a unique data set that consists of the buying and selling positions of open-end fund investors in China. Results show that investors' buying and selling behaviors are significantly affected by fund performance. The reasons that lie behind such results are mainly related to the non-persistence of fund performance. When fund performance is non-persistent, investors are not clear about the future returns on funds. So, investors, especially individual investors, would have to realize the profits on hand immediately. Meanwhile, fund investors are highly sensitive to fund age and loading fees, but not sensitive to management fees charged by funds when they buy or sell fund shares.展开更多
Developed by the American Forests, CITYgreen5.0 model has been widely applied to urban forestry research and has played an important role in analyzing quantitatively the ecological benefits produced by varied green-sp...Developed by the American Forests, CITYgreen5.0 model has been widely applied to urban forestry research and has played an important role in analyzing quantitatively the ecological benefits produced by varied green-space ecosystems. One of the functions of this model is to evaluate quickly and objectively on parts of the ecological benefits possibly produced by different design schemes for the same small-scale green-space project before the establishment. A comparative analysis was conducted by modeling partial ecological benefits potentially produced by green-spaces of two different design schemes for the same roof garden of Chuangfushidai-Junjingyuan in Shenzhen, given the growth status of plants both immediately after the establishment and 20 years later. Meanwhile, the project costs for each design scheme were also taken into consideration. The results showed that scheme II, mainly designed with a natural style of plant disposition, had a better greenery structure than that of scheme I, which was basically designed with a regular style of plant disposition. The estimated value of the partial ecological benefits produced by scheme II was larger than that of scheme I and the benefit-cost ratio of scheme II was more rational. It was suggested that scheme II be put into practice.展开更多
After the illustration of ecological restoration and research situation of foreign and domestic rivers,the paper has analyzed the relation between plants and river ecological restoration.By taking Jialu River that is ...After the illustration of ecological restoration and research situation of foreign and domestic rivers,the paper has analyzed the relation between plants and river ecological restoration.By taking Jialu River that is the main river of Zhengzhou City,for example,it has introduced the general situation of the project and the site,water quality of the river,and soil survey and testing.It has pointed out that the structural system of ecological space of "one corridor,one core and five areas" has formed in ecological restoration project.On this basis,it has analyzed plants disposition forms in waterfront area,emphasized combining aquatic plants and urban waterfront areas to construct a natural ecological river channel which will be a new design idea for ecological reconstruction in modern urban waterfront area.展开更多
The purpose of this study was to identify the relationships among disposition toward critical thinking, learning styles, and caring behaviors in student nurses enrolled in three 5-year junior nursing colleges in South...The purpose of this study was to identify the relationships among disposition toward critical thinking, learning styles, and caring behaviors in student nurses enrolled in three 5-year junior nursing colleges in Southern Taiwan. Methods: This cross-sectional study used a convenience sample that comprised 777 nursing students from two cities. The data were obtained through the Critical Thinking Disposition Inventory, Chinese Version (CTDI-CV), Index of Learning Styles (ILS), and the Caring Behavior Scale (CBS). The sample ranged in age from 16 to 22 years (M = 18.21). Results: Students scored highest on the inquisitiveness subscale and lowest on the truth-seeking subscale. Additionally, some dimensions of disposition toward critical thinking differed significantly by learning style. There was a positive relationship between overall critical thinking dispositions and caring behaviors (r = 0.23, p < 0.01). Finally, dimensions of caring behavior, with the exception of the maturity dimension, were significantly positively related to most dimensions of the disposition toward critical thinking (p < 0.05). Conclusion: The findings indicate that not only is learning style related to critical thinking disposition but also to caring behaviors. However, the cause of these relationships warrants further study.展开更多
Background: Despiteits recommendation in management guide lines for community acquired pneumonia (CAP), the CURB65 score is frequently not followed for disposition decisions in clinical routine. We therefore proposed ...Background: Despiteits recommendation in management guide lines for community acquired pneumonia (CAP), the CURB65 score is frequently not followed for disposition decisions in clinical routine. We therefore proposed an improved CURB65 A score, supplemented by proadre nome dull in (ProADM) levels for patients with CAP and other lower respiratory tract infections (LRTIs). In this study, we vali dated this risk based biomarker enhanced disposition in patients with LRTIs presenting to the emergency department of the University Hospital of Basel. Methods: In this prospective observational cohort study of 85 patients presenting with LRTIs, site of care was decided by the physicians in charge according to their judgement. Retro spectively the CURB65 A score was calculated and a virtual disposition assigned. This was compared with the existing disposition in order to identify efficacy of the novel risk based biomarker enhanced disposition. Results: The novel disposition criteria considered 14 patients suitable for outpatient treatment compared to 11 in the current disposition (p = 0.5). It detected 7 patients to be best treated outside the hospital for nursing reasons, while the current disposition detected only 1 patient requiring geriatric care (p = 0.09). Further, it decreased regular hospitalizations considerably (32 vs. 64, p 0.001). Conclusions: The novel risk based biomarker enhanced disposition is an objective, safe and probably more efficient disposition system to identify outpatient treatment options than the current practice at the University Hospital of Basel.展开更多
文摘Background: Critical Thinking (CT) dispositions in nursing are prominent predictors of competence in delivering high-quality care, and of professionalism, in newly graduated nurses. CT skills, in isolation of CT dispositions, do not guarantee success in the workplace, because Critical Thinking Dispositions (CTD) are important elements of intellectual reasoning that simulate a person towards using the CT skills. Therefore, nursing educational programs should promote lifelong learning rather than focusing on transferring the content of nursing knowledge only. And for this purpose, quality education is the key. Education should focus on teaching from diverse perspectives, incorporating various teaching learning strategies that are congruent with the modern era. Purpose: The purpose of this study is to explore critical thinking dispositions among final year Baccalaureate Nursing students of various military colleges of nursing, in Pakistan. Methodology: A descriptive qualitative exploratory study design was used to investigate the CTD of BSc final year nursing students. The study population included twelve willing nursing students, from six military colleges across the country. Demographic information and consent was taken from the participants of the study. In-depth interviews, through a semi structured interview guide, and probes were used to obtain data related to personal experiences of CTD amongst the nursing students. Results: Data analysis showed two broad themes: 1) Perceptions of CT, and 2) Experiences of CT dispositions. In theme one, the emerging category was: Clarity of CT;whereas in theme two, the categories that emerged were: a) Truth Seeking, b) Open Mindedness, c) Inquisitiveness, and d) Self Organization. Conclusion: The findings of the study revealed positive dispositions towards truth seeking, open mindedness, and self-organization, whereas disposition towards inquisitiveness was weak. Self-confidence and maturity also emerged as positive factors that the students possessed. This study recommends that faculty and learners should extend their concept of CTD, and emphasizes its application in daily routine. Additionally, faculty should modify their instructional strategies and focus on the cultivation of dispositions of inquisitiveness, curiosity, and allow questioning by students in the class.
文摘The article is devoted to proving the inconsistency of set theory arising from the existence of strange trees. All steps of the proof rely on common informal set-theoretic reasoning, but they take into account the prohibitions that were introduced into axiomatic set theories in order to overcome the difficulties encountered by the naive Cantor set theory. Therefore, in fact, the article is about proving the inconsistency of existing axiomatic set theories, in particular, the ZFC theory.
文摘This article illustrates the procedural specificities of the following eight contemporary methods of final disposition: (1) Natural Organic Reduction, (2) Alkaline Hydrolysis, (3) Plastination, (4) Body Farm, (5) Cryonics, (6) Memorial Reefs, (7) Organic Burial Pods, and (8) Space Funeral. After comparing the differences in the duration of body-processing time of all eight methods, Alkaline Hydrolysis was determined to take the shortest length of time to complete (6 - 8 hours), while Plastination was deemed to take the longest length of time to complete (1 year). Additionally, with regard to comparing the differences in cost to the consumer, Plastination and Body Farm were both deemed to be of the lowest cost ($0/body donation only), while Cryonics was deemed to be the most expensive ($200,000+ due to ongoing subfreezing storage and maintenance fees). Finally, after comparing the differences in each state’s set of sanctioned methods of final disposition, it was established that the seventeen states that restrict their residents’ options the most, permitting only two out of the eight contemporary options, include Alaska, Arkansas, Delaware, Indiana, Iowa, Kentucky, Louisiana, Massachusetts, Mississippi, Montana, Nebraska, New Hampshire, New Mexico, Pennsylvania, Rhode Island, South Dakota, and Wisconsin, and that the two states that restrict their residents the least, permitting six out of the eight contemporary options include California and Florida.
文摘Objective:To identify the attitudes of infertile couples toward their surplus frozen embryos.Methods:This study was according to PRISMA-ScR as the guideline for scoping review.Studies that assessed the attitudes of patients or infertile couples who had surplus embryos were included.We conducted systematic searches in English studies from April 2011-April 2021 using 7 databases:PubMed,Science Direct,EBSCO,Scopus,the Cochrane Library,Sage Journals,and Google Scholar.Data were charted based on author,year of publication,country,purpose,data collection,key findings,and research focus/domain.Results:A total of 37 research articles were included in the analysis.Their attitudes encompassed:supporting the donation of the surplus embryos for both research and reproductive purposes,continuing to store the frozen embryos,and disposing of the surplus embryos.Conclusions:Most of the infertile patients support donating their surplus embryos for research and reproductive purposes.
文摘With rapid development of economy and emergence of more and more high-grade residences,it had highlighted that high-grade residence was the inevitable tendency of economic development and urban construction.Based on the fact that high-grade residences paid more attention to harmony of human and architecture with nature and required higher for landscaping,the paper emphasized that landscape quality of high-grade residences was the key factor deciding quality of the residence.In view of insufficiencies of plant landscaping planning in high-grade residences at home and abroad,by taking high-grade residences in Hangzhou City for example,analysis had been conducted by selecting typical cases.It pointed out that plants disposition in high-grade residences was unreasonable,architectures and landscapes were isolated,and greening ratio was stressed while design was neglected.And then,corresponding solutions had been proposed.In terms of plants selection,it should reasonably utilize native tree species,and properly select new and high-quality plant species.In terms of harmonious unity between plant landscape and architecture,it should lay stress on unity between sensory design and comfort design.In terms of plant design and disposition,it should stick to the theme of "residential environment",so as to rationalize plant design and disposition,and create more comfortable residential environment.
文摘Based on relevant materials, the paper had analyzed the macro-function of roadside trees from the perspectives of urban eco-environment construction and urban plants landscape construction. By taking Yangling City as the demonstration area, the field study had been conducted on trees along 38 roads, which had been analyzed from the aspects of the species of roadside trees, disposition modes and seasonable change. It had found that roadside trees were abundant, including 27 species belonging to 22 families, but the disposition mode was simple. In view of existing problems, suggestions had been proposed. It should make use of native tree species to construct regional characteristic roads; enhance evergreen tree species and enrich seasonable scenery; cultivate fast-growing and slowly-growing tree species alternately and avoid landscape blank; dispose upper, middle and lower layer of plants species reasonably and construct multiple layers of plants landscape. Several good roadside tree species had been recommended, so as to provide scientific reference for roadside greening construction.
基金Supported by Preliminary Result of Investigation and Evaluation on Applicable Plant Resources for Garden Greening at Arid Valley Whichis the Important Research Project of Natural Science of Sichuan University for Nationalities~~
文摘Based on survey of plant species and disposition in major gardens at arid valley and optimization of plant disposition in Sichuan University for Nationalities,the study pointed out the overall target for disposition optimization of garden plants in arid valley,concluded the principles and approaches to optimize garden plant disposition at arid valley and highlight garden features at arid valley,emphasized the vital significance to develop local wild plant resources and introduce exotic garden plants.
基金Supported by Education Department of Anhui Province (Characteristic Subject Construction of Anhui Province)~~
文摘With ecological theory followed during disposition and application of landscape plants in residential area as the guidance,ecological landscape concept was established.It emphasized that landscape plants disposition should aim at making the nature reappear,ameliorating and maintaining ecological balance in residential area,with harmonious coexistence between human and nature as the goal,and with systematicness of landscape greening,diversity of biological development and sustainability of plant landscaping as the mission,so as to achieve plane systematicness,spatial hierarchy and temporal relevance.
文摘Aim: This study aimed to investigate critical thinking disposition among nurses working in Public Hospitals in Port-Said Governorate.Methods: A descriptive research design was conducted in this study. Totally 196 respondents were chosen by systemic random sampling, to take part in the study as the sample. Data was collected from April to September in 2015. Tools of data collection: A personal and job characteristics data sheet and California Critical Thinking Disposition Inventory(CCTDI) were used. Results: The results revealed that the total critical thinking disposition score mean was 257.05 ± 20.16 and the highest score mean was 48.67 ± 6.28 for inquisitiveness subscale, while the lowest score mean was 21.36 ± 7.19 for the truth-seeking subscale. Also, none of the personal&job characteristics showed statistically significant relations with the total critical thinking disposition. Conclusion: More than three quarters of the nurses had an ambivalent disposition toward critical thinking, and most nurses' scores indicated a negative tendency towards truth-seeking. So the findings pointed for upgrading nurses' critical thinking through educational programs and a need for more problem-based learning with advanced teaching strategies in clinical areas.
基金Project supported by the National Natural Science Foundation of China (Grant Nos. 61273164 and 61034005)the National High Technology Research and Development Program of China (Grant No. 2012AA040104)the Fundamental Research Funds for the Central Universities, China (Grant No. N100104102)
文摘With the increase of pipelines, corrosion leakage accidents happen frequently. Therefore, nondestructive testing technology is important for ensuring the safe operation of the pipelines and energy mining. In this paper, the structure and principle of magnetic flux leakage (MFL) in-line inspection system is introduced first. Besides, a mathematic model of the system according to the ampere circuit rule, flux continuity theorem, and column coordinate transform is built, and the magnetic flux density in every point of space is calculated based on the theory of finite element analysis. Then we analyze and design the disposition of measurement section probes and sensors combining both three-axis MFL in-line inspection and multi-sensor fusion technology. Its advantage is that the three-axis changes of magnetic flux leakage field are measured by the multi-probes at the same time, so we can determine various defects accurately. Finally, the theory of finite element analysis is used to build a finite element simulation model, and the relationship between defects and MFL inspection signals is studied. Simulation and experiment results verify that the method not only enhances the detection ability to different types of defects but also improves the precision and reliability of the inspection system.
基金Supported by Fundamental Scientific Research Program of Chongqing Science&Technology Commission
文摘On the basis of investigating vertical greening in urban districts of Chongqing City, major problems were analyzed, dominant greening patterns were summarized, and major plant species suitable for the vertical greening of urban districts in Chongqing City were given. On this basis, key technologies and development prospects of the vertical greening were explored.
文摘This paper explores the disposition effect, the tendency of investors to hold losing investments too long and sell winning investments too soon, by analyzing a unique data set that consists of the buying and selling positions of open-end fund investors in China. Results show that investors' buying and selling behaviors are significantly affected by fund performance. The reasons that lie behind such results are mainly related to the non-persistence of fund performance. When fund performance is non-persistent, investors are not clear about the future returns on funds. So, investors, especially individual investors, would have to realize the profits on hand immediately. Meanwhile, fund investors are highly sensitive to fund age and loading fees, but not sensitive to management fees charged by funds when they buy or sell fund shares.
文摘Developed by the American Forests, CITYgreen5.0 model has been widely applied to urban forestry research and has played an important role in analyzing quantitatively the ecological benefits produced by varied green-space ecosystems. One of the functions of this model is to evaluate quickly and objectively on parts of the ecological benefits possibly produced by different design schemes for the same small-scale green-space project before the establishment. A comparative analysis was conducted by modeling partial ecological benefits potentially produced by green-spaces of two different design schemes for the same roof garden of Chuangfushidai-Junjingyuan in Shenzhen, given the growth status of plants both immediately after the establishment and 20 years later. Meanwhile, the project costs for each design scheme were also taken into consideration. The results showed that scheme II, mainly designed with a natural style of plant disposition, had a better greenery structure than that of scheme I, which was basically designed with a regular style of plant disposition. The estimated value of the partial ecological benefits produced by scheme II was larger than that of scheme I and the benefit-cost ratio of scheme II was more rational. It was suggested that scheme II be put into practice.
文摘After the illustration of ecological restoration and research situation of foreign and domestic rivers,the paper has analyzed the relation between plants and river ecological restoration.By taking Jialu River that is the main river of Zhengzhou City,for example,it has introduced the general situation of the project and the site,water quality of the river,and soil survey and testing.It has pointed out that the structural system of ecological space of "one corridor,one core and five areas" has formed in ecological restoration project.On this basis,it has analyzed plants disposition forms in waterfront area,emphasized combining aquatic plants and urban waterfront areas to construct a natural ecological river channel which will be a new design idea for ecological reconstruction in modern urban waterfront area.
文摘The purpose of this study was to identify the relationships among disposition toward critical thinking, learning styles, and caring behaviors in student nurses enrolled in three 5-year junior nursing colleges in Southern Taiwan. Methods: This cross-sectional study used a convenience sample that comprised 777 nursing students from two cities. The data were obtained through the Critical Thinking Disposition Inventory, Chinese Version (CTDI-CV), Index of Learning Styles (ILS), and the Caring Behavior Scale (CBS). The sample ranged in age from 16 to 22 years (M = 18.21). Results: Students scored highest on the inquisitiveness subscale and lowest on the truth-seeking subscale. Additionally, some dimensions of disposition toward critical thinking differed significantly by learning style. There was a positive relationship between overall critical thinking dispositions and caring behaviors (r = 0.23, p < 0.01). Finally, dimensions of caring behavior, with the exception of the maturity dimension, were significantly positively related to most dimensions of the disposition toward critical thinking (p < 0.05). Conclusion: The findings indicate that not only is learning style related to critical thinking disposition but also to caring behaviors. However, the cause of these relationships warrants further study.
文摘Background: Despiteits recommendation in management guide lines for community acquired pneumonia (CAP), the CURB65 score is frequently not followed for disposition decisions in clinical routine. We therefore proposed an improved CURB65 A score, supplemented by proadre nome dull in (ProADM) levels for patients with CAP and other lower respiratory tract infections (LRTIs). In this study, we vali dated this risk based biomarker enhanced disposition in patients with LRTIs presenting to the emergency department of the University Hospital of Basel. Methods: In this prospective observational cohort study of 85 patients presenting with LRTIs, site of care was decided by the physicians in charge according to their judgement. Retro spectively the CURB65 A score was calculated and a virtual disposition assigned. This was compared with the existing disposition in order to identify efficacy of the novel risk based biomarker enhanced disposition. Results: The novel disposition criteria considered 14 patients suitable for outpatient treatment compared to 11 in the current disposition (p = 0.5). It detected 7 patients to be best treated outside the hospital for nursing reasons, while the current disposition detected only 1 patient requiring geriatric care (p = 0.09). Further, it decreased regular hospitalizations considerably (32 vs. 64, p 0.001). Conclusions: The novel risk based biomarker enhanced disposition is an objective, safe and probably more efficient disposition system to identify outpatient treatment options than the current practice at the University Hospital of Basel.