Mandatory lane change(MLC)is likely to cause traffic oscillations,which have a negative impact on traffic efficiency and safety.There is a rapid increase in research on mandatory lane change decision(MLCD)prediction,w...Mandatory lane change(MLC)is likely to cause traffic oscillations,which have a negative impact on traffic efficiency and safety.There is a rapid increase in research on mandatory lane change decision(MLCD)prediction,which can be categorized into physics-based models and machine-learning models.Both types of models have their advantages and disadvantages.To obtain a more advanced MLCD prediction method,this study proposes a hybrid architecture,which combines the Evolutionary Game Theory(EGT)based model(considering data efficient and interpretable)and the Machine Learning(ML)based model(considering high prediction accuracy)to model the mandatory lane change decision of multi-style drivers(i.e.EGTML framework).Therefore,EGT is utilized to introduce physical information,which can describe the progressive cooperative interactions between drivers and predict the decision-making of multi-style drivers.The generalization of the EGTML method is further validated using four machine learning models:ANN,RF,LightGBM,and XGBoost.The superiority of EGTML is demonstrated using real-world data(i.e.,Next Generation SIMulation,NGSIM).The results of sensitivity analysis show that the EGTML model outperforms the general ML model,especially when the data is sparse.展开更多
Contrary to the approach in judicial practice,Paragraph 1,Article 153,of the Civil Code of the People’s Republic of China,as a rule of invalidity for violating mandatory provisions,does not adopt a dichotomy towards ...Contrary to the approach in judicial practice,Paragraph 1,Article 153,of the Civil Code of the People’s Republic of China,as a rule of invalidity for violating mandatory provisions,does not adopt a dichotomy towards mandatory provisions with effectiveness and administrative characteristics,yet it maintains the legislative philosophy of differentiation.It leaves unspecified whether mandatory provisions that do not explicitly render a juristic act invalid impact the act’s validity,entrusting this determination to the discretion of judges on a case-by-case basis.When judges,under the authority of Paragraph 1,Article 153 of the Civil Code,explore the normative intent of mandatory provisions to assess their effect on the validity of juristic acts,they should engage in legal policy analysis centered on consequence-based argumentation to overcome the limitations of norm typological analysis.This analysis employs a reasoning model predicated on the normative purpose,utilizing a consequencefocused interpretative approach for formulating and arguing propositions of rules applicable to pending cases,thereby arriving at case-specific conclusions.Since the invalidation of juristic acts serves as an auxiliary regulatory tool for the state economy and society,a consequence-oriented interpretation needs to be based on the idea of mutual instrumentalization of public and private laws.This entails predicting the outcomes of negating the validity of a juristic act in industrial regulatory scenarios and assessing these outcomes within the framework of public and private regulatory instruments.展开更多
As an important rectifying mechanism to the involved parties-oriented civil litigation model,the mandatory attorney system requires the involved parties of a lawsuit to appoint a lawyer to represent them in the litiga...As an important rectifying mechanism to the involved parties-oriented civil litigation model,the mandatory attorney system requires the involved parties of a lawsuit to appoint a lawyer to represent them in the litigation,otherwise they will be rejected because the litigation requirements aren’t met.This seems to restrict the litigants’right to initiate a lawsuit by themselves.Through the arrangement of the system for the participation of lawyers in some litigation procedures,stages,and cases,coupled with the legal principle of litigation costs,the litigation costs sharing mechanism,legal aid,and other related supporting systems,it is not only a substantive guarantee for the litigants’right of action,but also can even strengthen the protection of the litigants’right of action in civil litigation.Based on the need to effectively protect and strengthen the litigants’right of action,combined with its civil litigation system and judicial operation environment,China should adopt a phased and gradual strategy to introduce and implement the mandatory attorney system in civil litigation while constantly improving its lawyer system,litigation costs system,legal aid system,and other related supporting systems.展开更多
Vaccination against life-threatening infectious illnesses is an important medical contribution that saves millions of lives worldwide each year.However,vaccine development and its use often attracted significant ethic...Vaccination against life-threatening infectious illnesses is an important medical contribution that saves millions of lives worldwide each year.However,vaccine development and its use often attracted significant ethical controversies.The ethical deliberations around vaccine research and use often utilize public health ethics principles where the benefit of the community at large or the common good is considered as the goal of ethical deliberations over benefits at the individual level.A scoping review of the literature regarding mandatory COVID-19 vaccination showed that many scholars recommended such a strategy based on the harm principle,and there is not much literature regarding other ethical principles that can be utilized to promote mandatory COVID-19 vaccination.展开更多
This article focuses on two issues. The first concerns definitions of the Northern Sea Route （NSR） in old and new Russian legislation, and the second relates to Russian rules on icebreaker guiding. Based on a compre...This article focuses on two issues. The first concerns definitions of the Northern Sea Route （NSR） in old and new Russian legislation, and the second relates to Russian rules on icebreaker guiding. Based on a comprehensive comparative analysis of relevant Russian legal provisions enacted in 2013 and previous laws in this area, we offer the following conclusions. （1） Our legal analysis indicates that Russia＇s view of the NSR as a historical national transportation route has not changed. However, the new law redefines the scope and coverage of the NSR, which now comprises the internal waters, territorial sea, adjacent zone, and the exclusive economic zone of the Russian Federation. In fact, the new law resolves previous ambiguity regarding extension of the NSR boundary to the high seas. （2） Based on an analysis of the new rules on icebreaker guiding, the article concludes that NSR is transitioning from a mandatory icebreaker guiding regime into a permit regime. This is particularly evident in its provision of a concrete, practical, and predictable clause on permissible or impermissible conditions relating to independent navigation. According to the new rules, it is possible for foreign ships to undertake independent navigation in the NSR. The Russian NSR policy, therefore, appears to have changed significantly, and has future potential for opening the NSR up to the international community.展开更多
At present,there are few security models which control the communication between virtual machines (VMs).Moreover,these models are not applicable to multi-level security (MLS).In order to implement mandatory access con...At present,there are few security models which control the communication between virtual machines (VMs).Moreover,these models are not applicable to multi-level security (MLS).In order to implement mandatory access control (MAC) and MLS in virtual machine system,this paper designs Virt-BLP model,which is based on BLP model.For the distinction between virtual machine system and non-virtualized system,we build elements and security axioms of Virt-BLP model by modifying those of BLP.Moreover,comparing with BLP,the number of state transition rules of Virt-BLP is reduced accordingly and some rules can only be enforced by trusted subject.As a result,Virt-BLP model supports MAC and partial discretionary access control (DAC),well satisfying the requirement of MLS in virtual machine system.As space is limited,the implementation of our MAC framework will be shown in a continuation.展开更多
AIM To characterize the clinical course and outcomes of nasal intermittent mandatory ventilation(NIMV) use in acute pediatric respiratory failure.METHODS We identified all patients treated with NIMV in the pediatric i...AIM To characterize the clinical course and outcomes of nasal intermittent mandatory ventilation(NIMV) use in acute pediatric respiratory failure.METHODS We identified all patients treated with NIMV in the pediatric intensive care unit(PICU) or inpatient general pediatrics between January 2013 and December 2015 at two academic centers.Patients who utilized NIMV with other modes of noninvasive ventilation during the same admission were included.Data included demographics,vital signs on admission and prior to initiation of NIMV,pediatric risk of mortality Ⅲ(PRIsM-Ⅲ) scores,complications,respiratory support characteristics,PICU and hospital length of stays,duration of respiratory support,and complications.Patients who did not require escalation to mechanical ventilation were defined as NIMV responders;those who required escalation to mechanical ventilation(MV) were defined as NIMV nonresponders.NIMV responders were compared to NIMV non-responders.RESULTS Forty-two patients met study criteria.six(14%) failed treatment and required MV.The majority of the patients(74%) had a primary diagnosis of bronchiolitis.The median age of these 42 patients was 4 mo(range 0.5-28.1 mo,IQR 7,P = 0.69).No significant difference was measured in other baseline demographics and vitals on initiation of NIMV;these included age,temperature,respiratory rate,O2 saturation,heart rate,systolic blood pressure,diastolic blood pressure,and PRIsM-Ⅲ scores.The duration of NIMV was shorter in the NIMV nonresponder vs NIMV responder group(6.5 h vs 65 h,P < 0.0005).Otherwise,NIMV failure was not associated with significant differences in PICU length of stay(LOs),hospital LOs,or total duration of respiratory support.No patients had aspiration pneumonia,pneumothorax,or skin breakdown.CONCLUSION Most of our patients responded to NIMV.NIMV failure is not associated with differences in hospital LOs,PICU LOs,or duration of respiratory support.展开更多
This paper proposes a security policy model for mandatory access control in class B1 database management system whose level of labeling is tuple. The relation hierarchical data model is extended to multilevel relatio...This paper proposes a security policy model for mandatory access control in class B1 database management system whose level of labeling is tuple. The relation hierarchical data model is extended to multilevel relation hierarchical data model. Based on the multilevel relation hierarchical data model, the concept of upper lower layer relational integrity is presented after we analyze and eliminate the covert channels caused by the database integrity. Two SQL statements are extended to process polyinstantiation in the multilevel secure environment. The system is based on the multilevel relation hierarchical data model and is capable of integratively storing and manipulating multilevel complicated objects ( e.g., multilevel spatial data) and multilevel conventional data ( e.g., integer, real number and character string).展开更多
Objectives: Despite the well-known advantages associated with immunization, it has proven difficult to achieve high levels of influenza vaccination among Health Care Professionals (HCPs). This report describes results...Objectives: Despite the well-known advantages associated with immunization, it has proven difficult to achieve high levels of influenza vaccination among Health Care Professionals (HCPs). This report describes results of an influenza vaccination program implemented within a comprehensive cancer center. Methods: Using records from calendar years 2005-2013, we completed a retrospective analysis of annual influenza vaccination rates at this center. A mandatory influenza vaccination policy was implemented in 2010, while prior to that vaccination was encouraged but not required. Vaccinations are free to employees and distributed at various locations. Annual influenza vaccination rates were examined by calendar year and by occupational group (medical, nursing, administrative, scientific, other support staff). Results: High levels of adherence with the mandatory influenza policy were observed for all employee groups. Prior to influenza vaccine mandates flu vaccination rates ranged from ~30% - 40% and increased to 85% - 89% with the mandate. Conclusions: Robust influenza vaccination rates have been sustained since implementation of a vaccination mandate supporting further expansion of policies requiring influenza vaccination for HCPs.展开更多
Australia is an apt landscape upon which to measure the success of mandatory testing of HIV and sexually transmissible infections (STIs) among sex workers. Mandatory testing is implemented in some Australian jurisdict...Australia is an apt landscape upon which to measure the success of mandatory testing of HIV and sexually transmissible infections (STIs) among sex workers. Mandatory testing is implemented in some Australian jurisdictions and not others, allowing for a comprehensive comparison of the outcomes. It is apparent that mandatory testing of HIV and STIs among sex workers in Australia has proven to be a barrier to otherwise successful HIV and STI peer education, prevention and free and anonymous testing and treatment. The outcomes of mandatory testing are counterproductive to reducing HIV and STI rates, do not reach the intended target group, are costly and inefficient, and mandatory testing has proven to be a very difficult policy to repeal once in place. Scarlet Alliance, the Australian Sex Workers Association, as well as numerous academics and policy leaders in Australia recommend against mandatory testing of HIV and STIs among sex workers.展开更多
Prior studies commonly use an auditor＇s market share in an industry as a proxy for auditor industry expertise and find that audit quality is positively related to an audit partner＇s within-industry market share in a...Prior studies commonly use an auditor＇s market share in an industry as a proxy for auditor industry expertise and find that audit quality is positively related to an audit partner＇s within-industry market share in a voluntary audit partner rotation regime where the length of the client-partner relationship is not limited. Mandatory audit partner rotation, however, limits the length of the client-partner relationship and can artificially increase or decrease the market shares of incoming and departing partners, thus making the audit partner＇s within-industry market share an unreliable proxy for auditor industry expertise. Using a sample of banks in Taiwan, we find that audit quality is positively related to an audit partner＇s within-industry market share in the voluntary audit partner rotation regime. However, such a positive relation disappears in the mandatory audit partner rotation regime. Thus, we conclude that mandatory audit partner rotation decouples the link between an audit partner＇s within-industry market share and auditor industry expertise and caution researchers against using an audit partner＇s within-industry market share as a proxy for auditor industry expertise in a mandatory audit partner rotation regime.展开更多
The objectives of this study are： （1） to explore current audit appointment practices by audit firms in Bahrain; （2） to look into the opinions of audit firms in Bahrain on potential effects provided by implementin...The objectives of this study are： （1） to explore current audit appointment practices by audit firms in Bahrain; （2） to look into the opinions of audit firms in Bahrain on potential effects provided by implementing mandatory audit firm rotation （audit quality）; and （3） to investigate audit firms＇ views in implementing mandatory audit firm rotation in Bahrain. To achieve these objectives, a questionnaire was developed and distributed to respondents that consist of all auditors working in audit firms in Bahrain. The findings indicated that there is a significant relationship between mandatory audit firm rotation and quality of audit. The study also indicated that longer partner tenure makes the auditor＇s performance lack the quality in the auditing process. The average mean for all questions of the hypothesis together is 2.73 with average standard deviation of 0.94 which is less than half of the mean. This means that there is no dispersion among respondents about the questions of the hypothesis. Also, the analysis shows that the t-value is 29.922, which is greater than the table critical value of t （1.66）, and the p-value obtained is 0.000 which is less than the value of significance at p 〈 0.05. These results confirm statistically that there is a significant relationship, so the null hypothesis is rejected and the alternative hypothesis is accepted.展开更多
Based on the samples of mandatory accounting changes （MAC） and voluntary accounting changes （VAC） of our country in 1999 and 2001, this research explores the relevancy between MAC and VAC and its specific performa...Based on the samples of mandatory accounting changes （MAC） and voluntary accounting changes （VAC） of our country in 1999 and 2001, this research explores the relevancy between MAC and VAC and its specific performance. The results of this research are shown as follows： （1） The timing relationship exists between MAC and VAC, and the frequency of VAC rises significantly in MAC year; （2） The relevancy exists in the earnings effects between MAC and VAC, and the combined effects which MAC and VAC have on earnings are in direct correlation with the earnings effects of MAC in the same year; （3） The supervisory factors of the securities market together with MAC influence the direction of VAC. Different from Pincus and Wasley＇s conclusion, when MAC is used to decrease profits, the part of VAC in our country counterbalances the effots of MAC; the listed companies with a special purpose will be against the direction of MAC and apply to VAC with a particular purpose.展开更多
Representatives and experts from eight Chinese national ministries and institutes including MIIT,MOHURD,Ministry of Public Security,Ministry of Transport,CNIS etc.,attended the workshop on streamlining Chinese mandato...Representatives and experts from eight Chinese national ministries and institutes including MIIT,MOHURD,Ministry of Public Security,Ministry of Transport,CNIS etc.,attended the workshop on streamlining Chinese mandatory standards,held by SAC in Beijing on April 29,aiming to figure out and supervise the implementing progress of relevant work.Attendees introduced their work schedules as well as problems encountered respectively,making展开更多
Using, the method of correlation coefficient, this paper discusses the empirical relationship between audit tenure and audit opinion in annual reports in China A-share market and period of mandatory rotation of audito...Using, the method of correlation coefficient, this paper discusses the empirical relationship between audit tenure and audit opinion in annual reports in China A-share market and period of mandatory rotation of auditor. The research finds that the negative correlation between auditor tenure and non-standard unqualified audit opinion is statistically significant, and auditor tenure might impair his/her independence. To enhance auditor independence and improve audit quality, it is necessary to rotate mandatory auditor. The results also fred that consecutive auditing years should not exceed 5 years when the existing auditor has been the auditor of listed company, and mandatory rotation of auditor adapts to the rotation of CPA firms in charge of a client.展开更多
Chuanxilu is a collection of Wang Yangming’s questions&answers and letters on learning.It is a masterpiece of Neo Confucianism since the pre-Qin period.This paper,from the perspective of translation poetics,takes...Chuanxilu is a collection of Wang Yangming’s questions&answers and letters on learning.It is a masterpiece of Neo Confucianism since the pre-Qin period.This paper,from the perspective of translation poetics,takes two English versions of Chuanxilu as the main research objects,makes quantitative statistics and qualitative analysis of the non-mandatory explicitation in the translation,aiming to explore the influence of poetics on the translator’s English translation of Chuanxilu,so as to provide some enlightenment for the external translation and interpretation of Wang Yangming’s theory of mind.展开更多
The revised national mandatory standard on polyethylene blown mulch film for agricultural uses was officially issued in October 2017.The new standard defines the increase of the minimum thickness of mulch film,which c...The revised national mandatory standard on polyethylene blown mulch film for agricultural uses was officially issued in October 2017.The new standard defines the increase of the minimum thickness of mulch film,which can prevent the overuse of ultra-thin mulch film and promote the recycling and aging-resistance of mulch film,according to Sha Nansheng,Deputy-Director of Science and Technology Division,MIIT.展开更多
To compare effect of high-frequency oscillation ventilation （HFOV） and conventional mandatory ventilation （CMV） on lung injury development in rabbit with acute respiratory distress syndrome （ ARDS）. Methods Anim...To compare effect of high-frequency oscillation ventilation （HFOV） and conventional mandatory ventilation （CMV） on lung injury development in rabbit with acute respiratory distress syndrome （ ARDS）. Methods Animals that underwent saline lung lavage to produce lung injury were randomized to one of the two treatment groups （ HFOV or CMV, n =6）. PaCO2 was maintained between 35 -45mmHg and arterial oxygen saturation （ SaO2 ） was maintain 〉 88% by adjusting corresponding ventilator parameters. Ventilation period was 6h. Lung fluids were aspirated before and at the end of ventilation for cell analysis. Then the animals were euthanized, lung tissue was removed for wet/dry weight measurement, light and electron microscopic examination. Besults The difference of artery blood gas analyses（pH, PaO2, PaCO2 ） between HFOV and CMV was insignificant. The difference between HFOV and CMV in cytological examination of lung fluids, wet/dry weight measurement was also insignificant. But compared with CMV, HFOV not only reduced the area of lung injury, but also reduced lung injury score in light and electron microscopic examination. Conclusion When same artery blood gas analysis was obtained, HFOV significantly reduced lung injury development in ARDS animal than CMV. As a lung protection strategy, HFOV can be used in the treatment of ARDS.展开更多
Owning to the rapid economy development in China and sharp increase of energyconsumption in recent years, energy shortage is increasingly apparent and becoming an importantobstacle to the sustainable development of ou...Owning to the rapid economy development in China and sharp increase of energyconsumption in recent years, energy shortage is increasingly apparent and becoming an importantobstacle to the sustainable development of our economy. With the aim to relieve the problem ofenergy shortage, the State Development and Reform Commission places the great emphasis ofenergy-saving work on improving energy efficiency of industrial energy-consuming products inenergy-saving work. The General Administration of Quality Supervision, Inspection and Quarantine ofthe People's Republic of China (AQSIQ) has issued and implemented two energy efficiency standardsfor three-phase induction motors and displacement air compressor, and will soon issue another twoenergy efficiency standards for clean- water centrifugal pumps and ventilation fans. The transformeris a kind of electric equipment widely used in many industries in national economy, with featuresof great amount of use, long period of operation and tremendous potential of energy-saving. So, itis necessary to develop the standard of energy efficiency for distribution transformers.展开更多
基金supported by the National Key R&D Program of China(2023YFE0106800)the Postgraduate Research&Practice Innovation Program of Jiangsu Province(SJCX24_0100).
文摘Mandatory lane change(MLC)is likely to cause traffic oscillations,which have a negative impact on traffic efficiency and safety.There is a rapid increase in research on mandatory lane change decision(MLCD)prediction,which can be categorized into physics-based models and machine-learning models.Both types of models have their advantages and disadvantages.To obtain a more advanced MLCD prediction method,this study proposes a hybrid architecture,which combines the Evolutionary Game Theory(EGT)based model(considering data efficient and interpretable)and the Machine Learning(ML)based model(considering high prediction accuracy)to model the mandatory lane change decision of multi-style drivers(i.e.EGTML framework).Therefore,EGT is utilized to introduce physical information,which can describe the progressive cooperative interactions between drivers and predict the decision-making of multi-style drivers.The generalization of the EGTML method is further validated using four machine learning models:ANN,RF,LightGBM,and XGBoost.The superiority of EGTML is demonstrated using real-world data(i.e.,Next Generation SIMulation,NGSIM).The results of sensitivity analysis show that the EGTML model outperforms the general ML model,especially when the data is sparse.
文摘Contrary to the approach in judicial practice,Paragraph 1,Article 153,of the Civil Code of the People’s Republic of China,as a rule of invalidity for violating mandatory provisions,does not adopt a dichotomy towards mandatory provisions with effectiveness and administrative characteristics,yet it maintains the legislative philosophy of differentiation.It leaves unspecified whether mandatory provisions that do not explicitly render a juristic act invalid impact the act’s validity,entrusting this determination to the discretion of judges on a case-by-case basis.When judges,under the authority of Paragraph 1,Article 153 of the Civil Code,explore the normative intent of mandatory provisions to assess their effect on the validity of juristic acts,they should engage in legal policy analysis centered on consequence-based argumentation to overcome the limitations of norm typological analysis.This analysis employs a reasoning model predicated on the normative purpose,utilizing a consequencefocused interpretative approach for formulating and arguing propositions of rules applicable to pending cases,thereby arriving at case-specific conclusions.Since the invalidation of juristic acts serves as an auxiliary regulatory tool for the state economy and society,a consequence-oriented interpretation needs to be based on the idea of mutual instrumentalization of public and private laws.This entails predicting the outcomes of negating the validity of a juristic act in industrial regulatory scenarios and assessing these outcomes within the framework of public and private regulatory instruments.
文摘As an important rectifying mechanism to the involved parties-oriented civil litigation model,the mandatory attorney system requires the involved parties of a lawsuit to appoint a lawyer to represent them in the litigation,otherwise they will be rejected because the litigation requirements aren’t met.This seems to restrict the litigants’right to initiate a lawsuit by themselves.Through the arrangement of the system for the participation of lawyers in some litigation procedures,stages,and cases,coupled with the legal principle of litigation costs,the litigation costs sharing mechanism,legal aid,and other related supporting systems,it is not only a substantive guarantee for the litigants’right of action,but also can even strengthen the protection of the litigants’right of action in civil litigation.Based on the need to effectively protect and strengthen the litigants’right of action,combined with its civil litigation system and judicial operation environment,China should adopt a phased and gradual strategy to introduce and implement the mandatory attorney system in civil litigation while constantly improving its lawyer system,litigation costs system,legal aid system,and other related supporting systems.
文摘Vaccination against life-threatening infectious illnesses is an important medical contribution that saves millions of lives worldwide each year.However,vaccine development and its use often attracted significant ethical controversies.The ethical deliberations around vaccine research and use often utilize public health ethics principles where the benefit of the community at large or the common good is considered as the goal of ethical deliberations over benefits at the individual level.A scoping review of the literature regarding mandatory COVID-19 vaccination showed that many scholars recommended such a strategy based on the harm principle,and there is not much literature regarding other ethical principles that can be utilized to promote mandatory COVID-19 vaccination.
基金Marine Science Research Project for Public Welfare "Assessment for Navigability of Arctic Sea Route and Research & Demonstration for Prediction System for Sea Route" (Grant no. 201205007-6)Research Project of Polar Right and Interest, the Department of International Cooperation of the State Oceanic Administration, China
文摘This article focuses on two issues. The first concerns definitions of the Northern Sea Route （NSR） in old and new Russian legislation, and the second relates to Russian rules on icebreaker guiding. Based on a comprehensive comparative analysis of relevant Russian legal provisions enacted in 2013 and previous laws in this area, we offer the following conclusions. （1） Our legal analysis indicates that Russia＇s view of the NSR as a historical national transportation route has not changed. However, the new law redefines the scope and coverage of the NSR, which now comprises the internal waters, territorial sea, adjacent zone, and the exclusive economic zone of the Russian Federation. In fact, the new law resolves previous ambiguity regarding extension of the NSR boundary to the high seas. （2） Based on an analysis of the new rules on icebreaker guiding, the article concludes that NSR is transitioning from a mandatory icebreaker guiding regime into a permit regime. This is particularly evident in its provision of a concrete, practical, and predictable clause on permissible or impermissible conditions relating to independent navigation. According to the new rules, it is possible for foreign ships to undertake independent navigation in the NSR. The Russian NSR policy, therefore, appears to have changed significantly, and has future potential for opening the NSR up to the international community.
基金Acknowledgements This work was supported by National Key Basic Research and Development Plan （973 Plan） of China （No. 2007CB310900） and National Natural Science Foundation of China （No. 90612018, 90715030 and 60970008）.
文摘At present,there are few security models which control the communication between virtual machines (VMs).Moreover,these models are not applicable to multi-level security (MLS).In order to implement mandatory access control (MAC) and MLS in virtual machine system,this paper designs Virt-BLP model,which is based on BLP model.For the distinction between virtual machine system and non-virtualized system,we build elements and security axioms of Virt-BLP model by modifying those of BLP.Moreover,comparing with BLP,the number of state transition rules of Virt-BLP is reduced accordingly and some rules can only be enforced by trusted subject.As a result,Virt-BLP model supports MAC and partial discretionary access control (DAC),well satisfying the requirement of MLS in virtual machine system.As space is limited,the implementation of our MAC framework will be shown in a continuation.
基金supported by NIH National Center for Advancing Translational Science,No.UL1TR001881
文摘AIM To characterize the clinical course and outcomes of nasal intermittent mandatory ventilation(NIMV) use in acute pediatric respiratory failure.METHODS We identified all patients treated with NIMV in the pediatric intensive care unit(PICU) or inpatient general pediatrics between January 2013 and December 2015 at two academic centers.Patients who utilized NIMV with other modes of noninvasive ventilation during the same admission were included.Data included demographics,vital signs on admission and prior to initiation of NIMV,pediatric risk of mortality Ⅲ(PRIsM-Ⅲ) scores,complications,respiratory support characteristics,PICU and hospital length of stays,duration of respiratory support,and complications.Patients who did not require escalation to mechanical ventilation were defined as NIMV responders;those who required escalation to mechanical ventilation(MV) were defined as NIMV nonresponders.NIMV responders were compared to NIMV non-responders.RESULTS Forty-two patients met study criteria.six(14%) failed treatment and required MV.The majority of the patients(74%) had a primary diagnosis of bronchiolitis.The median age of these 42 patients was 4 mo(range 0.5-28.1 mo,IQR 7,P = 0.69).No significant difference was measured in other baseline demographics and vitals on initiation of NIMV;these included age,temperature,respiratory rate,O2 saturation,heart rate,systolic blood pressure,diastolic blood pressure,and PRIsM-Ⅲ scores.The duration of NIMV was shorter in the NIMV nonresponder vs NIMV responder group(6.5 h vs 65 h,P < 0.0005).Otherwise,NIMV failure was not associated with significant differences in PICU length of stay(LOs),hospital LOs,or total duration of respiratory support.No patients had aspiration pneumonia,pneumothorax,or skin breakdown.CONCLUSION Most of our patients responded to NIMV.NIMV failure is not associated with differences in hospital LOs,PICU LOs,or duration of respiratory support.
文摘This paper proposes a security policy model for mandatory access control in class B1 database management system whose level of labeling is tuple. The relation hierarchical data model is extended to multilevel relation hierarchical data model. Based on the multilevel relation hierarchical data model, the concept of upper lower layer relational integrity is presented after we analyze and eliminate the covert channels caused by the database integrity. Two SQL statements are extended to process polyinstantiation in the multilevel secure environment. The system is based on the multilevel relation hierarchical data model and is capable of integratively storing and manipulating multilevel complicated objects ( e.g., multilevel spatial data) and multilevel conventional data ( e.g., integer, real number and character string).
文摘Objectives: Despite the well-known advantages associated with immunization, it has proven difficult to achieve high levels of influenza vaccination among Health Care Professionals (HCPs). This report describes results of an influenza vaccination program implemented within a comprehensive cancer center. Methods: Using records from calendar years 2005-2013, we completed a retrospective analysis of annual influenza vaccination rates at this center. A mandatory influenza vaccination policy was implemented in 2010, while prior to that vaccination was encouraged but not required. Vaccinations are free to employees and distributed at various locations. Annual influenza vaccination rates were examined by calendar year and by occupational group (medical, nursing, administrative, scientific, other support staff). Results: High levels of adherence with the mandatory influenza policy were observed for all employee groups. Prior to influenza vaccine mandates flu vaccination rates ranged from ~30% - 40% and increased to 85% - 89% with the mandate. Conclusions: Robust influenza vaccination rates have been sustained since implementation of a vaccination mandate supporting further expansion of policies requiring influenza vaccination for HCPs.
文摘Australia is an apt landscape upon which to measure the success of mandatory testing of HIV and sexually transmissible infections (STIs) among sex workers. Mandatory testing is implemented in some Australian jurisdictions and not others, allowing for a comprehensive comparison of the outcomes. It is apparent that mandatory testing of HIV and STIs among sex workers in Australia has proven to be a barrier to otherwise successful HIV and STI peer education, prevention and free and anonymous testing and treatment. The outcomes of mandatory testing are counterproductive to reducing HIV and STI rates, do not reach the intended target group, are costly and inefficient, and mandatory testing has proven to be a very difficult policy to repeal once in place. Scarlet Alliance, the Australian Sex Workers Association, as well as numerous academics and policy leaders in Australia recommend against mandatory testing of HIV and STIs among sex workers.
文摘Prior studies commonly use an auditor＇s market share in an industry as a proxy for auditor industry expertise and find that audit quality is positively related to an audit partner＇s within-industry market share in a voluntary audit partner rotation regime where the length of the client-partner relationship is not limited. Mandatory audit partner rotation, however, limits the length of the client-partner relationship and can artificially increase or decrease the market shares of incoming and departing partners, thus making the audit partner＇s within-industry market share an unreliable proxy for auditor industry expertise. Using a sample of banks in Taiwan, we find that audit quality is positively related to an audit partner＇s within-industry market share in the voluntary audit partner rotation regime. However, such a positive relation disappears in the mandatory audit partner rotation regime. Thus, we conclude that mandatory audit partner rotation decouples the link between an audit partner＇s within-industry market share and auditor industry expertise and caution researchers against using an audit partner＇s within-industry market share as a proxy for auditor industry expertise in a mandatory audit partner rotation regime.
文摘The objectives of this study are： （1） to explore current audit appointment practices by audit firms in Bahrain; （2） to look into the opinions of audit firms in Bahrain on potential effects provided by implementing mandatory audit firm rotation （audit quality）; and （3） to investigate audit firms＇ views in implementing mandatory audit firm rotation in Bahrain. To achieve these objectives, a questionnaire was developed and distributed to respondents that consist of all auditors working in audit firms in Bahrain. The findings indicated that there is a significant relationship between mandatory audit firm rotation and quality of audit. The study also indicated that longer partner tenure makes the auditor＇s performance lack the quality in the auditing process. The average mean for all questions of the hypothesis together is 2.73 with average standard deviation of 0.94 which is less than half of the mean. This means that there is no dispersion among respondents about the questions of the hypothesis. Also, the analysis shows that the t-value is 29.922, which is greater than the table critical value of t （1.66）, and the p-value obtained is 0.000 which is less than the value of significance at p 〈 0.05. These results confirm statistically that there is a significant relationship, so the null hypothesis is rejected and the alternative hypothesis is accepted.
文摘Based on the samples of mandatory accounting changes （MAC） and voluntary accounting changes （VAC） of our country in 1999 and 2001, this research explores the relevancy between MAC and VAC and its specific performance. The results of this research are shown as follows： （1） The timing relationship exists between MAC and VAC, and the frequency of VAC rises significantly in MAC year; （2） The relevancy exists in the earnings effects between MAC and VAC, and the combined effects which MAC and VAC have on earnings are in direct correlation with the earnings effects of MAC in the same year; （3） The supervisory factors of the securities market together with MAC influence the direction of VAC. Different from Pincus and Wasley＇s conclusion, when MAC is used to decrease profits, the part of VAC in our country counterbalances the effots of MAC; the listed companies with a special purpose will be against the direction of MAC and apply to VAC with a particular purpose.
文摘Representatives and experts from eight Chinese national ministries and institutes including MIIT,MOHURD,Ministry of Public Security,Ministry of Transport,CNIS etc.,attended the workshop on streamlining Chinese mandatory standards,held by SAC in Beijing on April 29,aiming to figure out and supervise the implementing progress of relevant work.Attendees introduced their work schedules as well as problems encountered respectively,making
文摘Using, the method of correlation coefficient, this paper discusses the empirical relationship between audit tenure and audit opinion in annual reports in China A-share market and period of mandatory rotation of auditor. The research finds that the negative correlation between auditor tenure and non-standard unqualified audit opinion is statistically significant, and auditor tenure might impair his/her independence. To enhance auditor independence and improve audit quality, it is necessary to rotate mandatory auditor. The results also fred that consecutive auditing years should not exceed 5 years when the existing auditor has been the auditor of listed company, and mandatory rotation of auditor adapts to the rotation of CPA firms in charge of a client.
文摘Chuanxilu is a collection of Wang Yangming’s questions&answers and letters on learning.It is a masterpiece of Neo Confucianism since the pre-Qin period.This paper,from the perspective of translation poetics,takes two English versions of Chuanxilu as the main research objects,makes quantitative statistics and qualitative analysis of the non-mandatory explicitation in the translation,aiming to explore the influence of poetics on the translator’s English translation of Chuanxilu,so as to provide some enlightenment for the external translation and interpretation of Wang Yangming’s theory of mind.
文摘The revised national mandatory standard on polyethylene blown mulch film for agricultural uses was officially issued in October 2017.The new standard defines the increase of the minimum thickness of mulch film,which can prevent the overuse of ultra-thin mulch film and promote the recycling and aging-resistance of mulch film,according to Sha Nansheng,Deputy-Director of Science and Technology Division,MIIT.
文摘To compare effect of high-frequency oscillation ventilation （HFOV） and conventional mandatory ventilation （CMV） on lung injury development in rabbit with acute respiratory distress syndrome （ ARDS）. Methods Animals that underwent saline lung lavage to produce lung injury were randomized to one of the two treatment groups （ HFOV or CMV, n =6）. PaCO2 was maintained between 35 -45mmHg and arterial oxygen saturation （ SaO2 ） was maintain 〉 88% by adjusting corresponding ventilator parameters. Ventilation period was 6h. Lung fluids were aspirated before and at the end of ventilation for cell analysis. Then the animals were euthanized, lung tissue was removed for wet/dry weight measurement, light and electron microscopic examination. Besults The difference of artery blood gas analyses（pH, PaO2, PaCO2 ） between HFOV and CMV was insignificant. The difference between HFOV and CMV in cytological examination of lung fluids, wet/dry weight measurement was also insignificant. But compared with CMV, HFOV not only reduced the area of lung injury, but also reduced lung injury score in light and electron microscopic examination. Conclusion When same artery blood gas analysis was obtained, HFOV significantly reduced lung injury development in ARDS animal than CMV. As a lung protection strategy, HFOV can be used in the treatment of ARDS.
文摘Owning to the rapid economy development in China and sharp increase of energyconsumption in recent years, energy shortage is increasingly apparent and becoming an importantobstacle to the sustainable development of our economy. With the aim to relieve the problem ofenergy shortage, the State Development and Reform Commission places the great emphasis ofenergy-saving work on improving energy efficiency of industrial energy-consuming products inenergy-saving work. The General Administration of Quality Supervision, Inspection and Quarantine ofthe People's Republic of China (AQSIQ) has issued and implemented two energy efficiency standardsfor three-phase induction motors and displacement air compressor, and will soon issue another twoenergy efficiency standards for clean- water centrifugal pumps and ventilation fans. The transformeris a kind of electric equipment widely used in many industries in national economy, with featuresof great amount of use, long period of operation and tremendous potential of energy-saving. So, itis necessary to develop the standard of energy efficiency for distribution transformers.
