A bidirectional labeling method was established to distinguish the proportions of HCO3- and CO2 utiliza- tion pathways of microalgae in Lake Hongfeng. The method was based on microalgae cultured in a medium by adding ...A bidirectional labeling method was established to distinguish the proportions of HCO3- and CO2 utiliza- tion pathways of microalgae in Lake Hongfeng. The method was based on microalgae cultured in a medium by adding equal concentrations of NaH13CO3 with different 613C values simultaneously. The inorganic carbon sources were quantified according to the stable carbon isotope composition in the treated microalgae. The effects of extracellular carbonic anhydrase （CAex） on the HCO3 and CO2 utilization pathways were distinguished using acetazolamide, a potent membrane-impermeable carbonic anhydrase inhibitor. The results show utilization of the added HCO3- was only 8% of the total carbon sources in karst lake. The proportion of the HCO3- utilization path- way was 52% of total inorganic carbon assimilation. Therefore, in the natural water of the karst area, the microalgae used less bicarbonate that preexisted in the aqueous medium than CO2 derived from the atmosphere. CAex increased the utilization of inorganic carbon from the atmosphere. The microalgae with CAex had greater carbon sequestration capacity in this karst area.展开更多
Having as a starting point of the problematic energy consumption of buildings, it studied the panorama of energy efficiency, emphasizing the Brazilian program of the INMETRO （Instituto Nacional de Metrologia, Normali...Having as a starting point of the problematic energy consumption of buildings, it studied the panorama of energy efficiency, emphasizing the Brazilian program of the INMETRO （Instituto Nacional de Metrologia, Normalizacao e Qualidade Industrial）, PROCEL “Edifica” （national program for energy efficiency in buildings）, contained in the norm RTQ-C （technical requirements of the quality for the level of energetic efficiency of commercial, service, and public buildings）. For a better understanding of the regulation, it elected a building, emblematic in the city of Passo Fundo, RS, Brazil, illustrating the perspective of the program. The building was classified in accordance with the two methodologies presented by the program： prescriptive and simulation, so it was possible to investigate the peculiarities of each methodology and the own regulation. After the application of the methodologies, we came to the conclusion that the prescriptive method is less accurate and requires more dedication by the evaluator to do all the calculations and surveys required, however, it is the fastest tool and accessible to the field professionals. The simulation on the other hand, is a more accurate methodology and reaches levels of analysis that the prescriptive method does not reach, but still is a tool that needs large initial financial contribution and prior knowledge.展开更多
Camera calibration is the key technique in a C-arm based orthopaedic surgical navigation system. The extraction of marker location information is a necessary step in the calibration process. Ideal marker images should...Camera calibration is the key technique in a C-arm based orthopaedic surgical navigation system. The extraction of marker location information is a necessary step in the calibration process. Ideal marker images should possess uniform background and contain marker shadow only, but in fact marker images always possess nonuniform background and are contaminated by noise and unwanted anatomic information, making the extraction very difficult. A target-orientated marker shadow extraction method was proposed. With this method a proper threshold for marker image binarization can be determined.展开更多
In this paper, the author provides a representation of Italian public hospital facilitators （HFs） （clinics, regional or local community hospitals, and medical centers） by means of different types of networks. Movi...In this paper, the author provides a representation of Italian public hospital facilitators （HFs） （clinics, regional or local community hospitals, and medical centers） by means of different types of networks. Moving from the balance scorecards of HFs, the author has analyzed the representation of those data through the use of the minimum spanning tree （MST） and the planar maximally-filtered graph （PMFG）. This paper firstly examined the amount of information provided by the two networks and then run a sensitivity analysis of the networks by varying the elements of the balance scorecards to be considered. In this way, the author obtained a quite unusual representation of the overall economic situation of Italian HFs. Moreover, the author observed the emergence of patterns which in the author＇s opinion might help policy makers to realize a more efficient allocation of financial resources among the existing HFs.展开更多
Taking Beijing as an example and based on the census data,macro-level population statistical data and 2004~2013 marriage registration data,this paper makes a contrastive analysis on the characteristics and changing tr...Taking Beijing as an example and based on the census data,macro-level population statistical data and 2004~2013 marriage registration data,this paper makes a contrastive analysis on the characteristics and changing trends of local residents,migrants and temporary migrants. Relative to the local residents,the migrants generally have household registry of central districts and higher educational level and occupational layer. Temporary migrants have relatively complicated population structure but differentiate during the process of marriage matching. 'Two-place marriages'form a stable group of new permanent migrants and meanwhile imply a sizable group of latent dependent migrants. This will produce great infl uences on the general population structure and the aging process,which may also lead to some confl icts and problems. The government should be prepared with policy responses so as to promote the benign development of population diversifi cation in megalopolis.展开更多
Premature ovarian insufficiency（POI） affects seriously physical and mental health of the patients. Studies show that acupuncture may be promising in treating POI. yet evidence is insufficient. International patient ...Premature ovarian insufficiency（POI） affects seriously physical and mental health of the patients. Studies show that acupuncture may be promising in treating POI. yet evidence is insufficient. International patient registry, one form of observational study, is designed for evaluating effectiveness and safety of acupuncture in real-world clinical settings. We will face a series of opportunities and challenges. The opportunities are as follows：（1） Interdisciplinary cooperation can improve the effect of acupuncture for POI.（2） The protocol for acupuncture to treat POI has room for improvement.（3） The patient registry study can make up the shortcomings of randomized controlled trials.（4） The patient registry study can collect real-world data and explore responses of different populations to acupuncture and can be the foundation for the successive studies. International patient registry may face technological, ethical and financial challenges, while the established International Patient Registry Platform of Acupuncture-Moxibustion（www.amreg.org：8082/v3） is actively responding to these challenges. Till now there have been more than 300 patients of POI enrolled on this platform.展开更多
Job burnout is a synthetic syndrome of emotional exhaustion, depersonalization and reduced personal accomplishment. It has a time-linked and situation-specific nature by developing gradually and fluctuating with chang...Job burnout is a synthetic syndrome of emotional exhaustion, depersonalization and reduced personal accomplishment. It has a time-linked and situation-specific nature by developing gradually and fluctuating with changes of environmental contributors. In this study, four related diary entries were analyzed narratively, written by a polytechnic teacher teaching English for General Purposes （EGP） in a semester, to verify the possible work- related situational factors causing iob burnout of EGP teachers in the Chinese context. The results revealed ten environmental burnout elements, including overload, severity of students＇ problem, lacking supervisors＇ support, limited iob autonomy, a stern hierarchical organizational system, and opaque operating rules. We interpreted the results in terms of teacher professional development and proposed that enhancing EGP teachers＇ professional identity and revaluing the EGP course in polytechnics were the basic ways to mitigate burnout and improve English teachers＇ professional development.展开更多
基金supported by the National Natural Sciences Foundation of China (U1612441)Foundation of Guizhou Province ([2014] 2131)Doctor Foundation of Guizhou Normal University (0514014)
文摘A bidirectional labeling method was established to distinguish the proportions of HCO3- and CO2 utiliza- tion pathways of microalgae in Lake Hongfeng. The method was based on microalgae cultured in a medium by adding equal concentrations of NaH13CO3 with different 613C values simultaneously. The inorganic carbon sources were quantified according to the stable carbon isotope composition in the treated microalgae. The effects of extracellular carbonic anhydrase （CAex） on the HCO3 and CO2 utilization pathways were distinguished using acetazolamide, a potent membrane-impermeable carbonic anhydrase inhibitor. The results show utilization of the added HCO3- was only 8% of the total carbon sources in karst lake. The proportion of the HCO3- utilization path- way was 52% of total inorganic carbon assimilation. Therefore, in the natural water of the karst area, the microalgae used less bicarbonate that preexisted in the aqueous medium than CO2 derived from the atmosphere. CAex increased the utilization of inorganic carbon from the atmosphere. The microalgae with CAex had greater carbon sequestration capacity in this karst area.
文摘Having as a starting point of the problematic energy consumption of buildings, it studied the panorama of energy efficiency, emphasizing the Brazilian program of the INMETRO （Instituto Nacional de Metrologia, Normalizacao e Qualidade Industrial）, PROCEL “Edifica” （national program for energy efficiency in buildings）, contained in the norm RTQ-C （technical requirements of the quality for the level of energetic efficiency of commercial, service, and public buildings）. For a better understanding of the regulation, it elected a building, emblematic in the city of Passo Fundo, RS, Brazil, illustrating the perspective of the program. The building was classified in accordance with the two methodologies presented by the program： prescriptive and simulation, so it was possible to investigate the peculiarities of each methodology and the own regulation. After the application of the methodologies, we came to the conclusion that the prescriptive method is less accurate and requires more dedication by the evaluator to do all the calculations and surveys required, however, it is the fastest tool and accessible to the field professionals. The simulation on the other hand, is a more accurate methodology and reaches levels of analysis that the prescriptive method does not reach, but still is a tool that needs large initial financial contribution and prior knowledge.
基金Project of Science and Technology Committee of Shanghai Municipality (No.2528(3))
文摘Camera calibration is the key technique in a C-arm based orthopaedic surgical navigation system. The extraction of marker location information is a necessary step in the calibration process. Ideal marker images should possess uniform background and contain marker shadow only, but in fact marker images always possess nonuniform background and are contaminated by noise and unwanted anatomic information, making the extraction very difficult. A target-orientated marker shadow extraction method was proposed. With this method a proper threshold for marker image binarization can be determined.
文摘In this paper, the author provides a representation of Italian public hospital facilitators （HFs） （clinics, regional or local community hospitals, and medical centers） by means of different types of networks. Moving from the balance scorecards of HFs, the author has analyzed the representation of those data through the use of the minimum spanning tree （MST） and the planar maximally-filtered graph （PMFG）. This paper firstly examined the amount of information provided by the two networks and then run a sensitivity analysis of the networks by varying the elements of the balance scorecards to be considered. In this way, the author obtained a quite unusual representation of the overall economic situation of Italian HFs. Moreover, the author observed the emergence of patterns which in the author＇s opinion might help policy makers to realize a more efficient allocation of financial resources among the existing HFs.
文摘Taking Beijing as an example and based on the census data,macro-level population statistical data and 2004~2013 marriage registration data,this paper makes a contrastive analysis on the characteristics and changing trends of local residents,migrants and temporary migrants. Relative to the local residents,the migrants generally have household registry of central districts and higher educational level and occupational layer. Temporary migrants have relatively complicated population structure but differentiate during the process of marriage matching. 'Two-place marriages'form a stable group of new permanent migrants and meanwhile imply a sizable group of latent dependent migrants. This will produce great infl uences on the general population structure and the aging process,which may also lead to some confl icts and problems. The government should be prepared with policy responses so as to promote the benign development of population diversifi cation in megalopolis.
基金Supported by Ministry of Science and Technology of the People's Republic of China through the Twelfth Five-Year National Science and Technology Pillar Program(2012BAI24B02)~~
文摘Premature ovarian insufficiency（POI） affects seriously physical and mental health of the patients. Studies show that acupuncture may be promising in treating POI. yet evidence is insufficient. International patient registry, one form of observational study, is designed for evaluating effectiveness and safety of acupuncture in real-world clinical settings. We will face a series of opportunities and challenges. The opportunities are as follows：（1） Interdisciplinary cooperation can improve the effect of acupuncture for POI.（2） The protocol for acupuncture to treat POI has room for improvement.（3） The patient registry study can make up the shortcomings of randomized controlled trials.（4） The patient registry study can collect real-world data and explore responses of different populations to acupuncture and can be the foundation for the successive studies. International patient registry may face technological, ethical and financial challenges, while the established International Patient Registry Platform of Acupuncture-Moxibustion（www.amreg.org：8082/v3） is actively responding to these challenges. Till now there have been more than 300 patients of POI enrolled on this platform.
文摘Job burnout is a synthetic syndrome of emotional exhaustion, depersonalization and reduced personal accomplishment. It has a time-linked and situation-specific nature by developing gradually and fluctuating with changes of environmental contributors. In this study, four related diary entries were analyzed narratively, written by a polytechnic teacher teaching English for General Purposes （EGP） in a semester, to verify the possible work- related situational factors causing iob burnout of EGP teachers in the Chinese context. The results revealed ten environmental burnout elements, including overload, severity of students＇ problem, lacking supervisors＇ support, limited iob autonomy, a stern hierarchical organizational system, and opaque operating rules. We interpreted the results in terms of teacher professional development and proposed that enhancing EGP teachers＇ professional identity and revaluing the EGP course in polytechnics were the basic ways to mitigate burnout and improve English teachers＇ professional development.
