The main significance of witnesses＇ appearing in court to testify in criminal trials is that this practice guarantees the defendant＇s right to confrontation. The issue can thus be framed in another way, as the issue...The main significance of witnesses＇ appearing in court to testify in criminal trials is that this practice guarantees the defendant＇s right to confrontation. The issue can thus be framed in another way, as the issue of the appearance in court of the necessary witnesses. Here, the defendant＇s right to confront is the key point. Since neither China＇s criminal procedural law nor corresponding judicial interpretations have granted the defendant the right to confront, the rate of appearance of the necessary witnesses amounts in practice to only about twenty- five percent. Criminal trials conducted in the absence of the right to confrontation usually conform to the doctrine of positive substantive truth and manifest a lack of care in conviction and sentencing as well as reliance on a single source of legitimacy in reaching judgments. To correct this state of affairs, it is necessary to institute the right to confront and corresponding safeguards.展开更多
For n≥3,we construct a class{Wn,π1,π2}of n^(2)×n^(2) hermitian matrices by the permutation pairs and show that,for a pair{π1,π2}of permutations on(1,2,…,n),Wn,π1,π2 is an entanglement witness of the n⊗n s...For n≥3,we construct a class{Wn,π1,π2}of n^(2)×n^(2) hermitian matrices by the permutation pairs and show that,for a pair{π1,π2}of permutations on(1,2,…,n),Wn,π1,π2 is an entanglement witness of the n⊗n system if{π1,π2}has the property(C).Recall that a pair{π1,π2}of permutations of(1,2,…,n)has the property(C)if,for each i,one can obtain a permutation of(1,…,i−1,i+1,…,n)from(π1(1),…,π1(i−1),π1(i+1),…,π1(n))and(π2(1),…,π2(i−1),π2(i+1),…,π2(n)).We further prove that Wn,π1,π2 is not comparable with Wn,π,which is the entanglement witness constructed from a single permutationπ;Wn,π1,π2 is decomposable ifπ1π2=id orπ21=π22=id.For the low dimensional cases n∈{3,4},we give a sufficient and necessary condition onπ1,π2 for Wn,π1,π2 to be an entanglement witness.We also show that,for n∈{3,4},Wn,π1,π2 is decomposable if and only ifπ1π2=id orπ21=π22=id;W3,π1,π2 is optimal if and only if(π1,π2)=(π,π2),whereπ=(2,3,1).As applications,some entanglement criteria for states and some decomposability criteria for positive maps are established.展开更多
According to Roland Berger Strat-egy Consultants 2014 outlook on China’s healthcare services industry released on January 10th,2014,Ro-land Berger believes that Chinese healthcare market and industry will see structu...According to Roland Berger Strat-egy Consultants 2014 outlook on China’s healthcare services industry released on January 10th,2014,Ro-land Berger believes that Chinese healthcare market and industry will see structural shifts and dynamic changes over the next decade,with 2014 marking an important start to this process.This year is likely to witness展开更多
China, in 2005, had gone through a year of trade disputes with some major trade partners such as the United States of America, the European,etc..But what was the impact of the disputes on China's trade relatio... China, in 2005, had gone through a year of trade disputes with some major trade partners such as the United States of America, the European,etc..But what was the impact of the disputes on China's trade relations with them? The documents of the China Ministry of Commerce show that all the relations had witnessed a optimistic development, with active fruits ahieved as well.……展开更多
On the occasion of the 20th anniversary of the founding of Gofront Dyeing&Finishing Machinery Manufacturer Ltd.,the Documentary"Originality Made"made by CCTV-9 Discovery channel,during which Gofront Dyei...On the occasion of the 20th anniversary of the founding of Gofront Dyeing&Finishing Machinery Manufacturer Ltd.,the Documentary"Originality Made"made by CCTV-9 Discovery channel,during which Gofront Dyeing&Finishing was selected as the first dyeing and finishing equipment manufacturing enterprise in China,presented its premiere in Guangzhou,on November 24th,2017.展开更多
文摘The main significance of witnesses＇ appearing in court to testify in criminal trials is that this practice guarantees the defendant＇s right to confrontation. The issue can thus be framed in another way, as the issue of the appearance in court of the necessary witnesses. Here, the defendant＇s right to confront is the key point. Since neither China＇s criminal procedural law nor corresponding judicial interpretations have granted the defendant the right to confront, the rate of appearance of the necessary witnesses amounts in practice to only about twenty- five percent. Criminal trials conducted in the absence of the right to confrontation usually conform to the doctrine of positive substantive truth and manifest a lack of care in conviction and sentencing as well as reliance on a single source of legitimacy in reaching judgments. To correct this state of affairs, it is necessary to institute the right to confront and corresponding safeguards.
基金partially supported by National Natural Science Foundation of China(11671294,12071336)。
文摘For n≥3,we construct a class{Wn,π1,π2}of n^(2)×n^(2) hermitian matrices by the permutation pairs and show that,for a pair{π1,π2}of permutations on(1,2,…,n),Wn,π1,π2 is an entanglement witness of the n⊗n system if{π1,π2}has the property(C).Recall that a pair{π1,π2}of permutations of(1,2,…,n)has the property(C)if,for each i,one can obtain a permutation of(1,…,i−1,i+1,…,n)from(π1(1),…,π1(i−1),π1(i+1),…,π1(n))and(π2(1),…,π2(i−1),π2(i+1),…,π2(n)).We further prove that Wn,π1,π2 is not comparable with Wn,π,which is the entanglement witness constructed from a single permutationπ;Wn,π1,π2 is decomposable ifπ1π2=id orπ21=π22=id.For the low dimensional cases n∈{3,4},we give a sufficient and necessary condition onπ1,π2 for Wn,π1,π2 to be an entanglement witness.We also show that,for n∈{3,4},Wn,π1,π2 is decomposable if and only ifπ1π2=id orπ21=π22=id;W3,π1,π2 is optimal if and only if(π1,π2)=(π,π2),whereπ=(2,3,1).As applications,some entanglement criteria for states and some decomposability criteria for positive maps are established.
文摘According to Roland Berger Strat-egy Consultants 2014 outlook on China’s healthcare services industry released on January 10th,2014,Ro-land Berger believes that Chinese healthcare market and industry will see structural shifts and dynamic changes over the next decade,with 2014 marking an important start to this process.This year is likely to witness
文摘 China, in 2005, had gone through a year of trade disputes with some major trade partners such as the United States of America, the European,etc..But what was the impact of the disputes on China's trade relations with them? The documents of the China Ministry of Commerce show that all the relations had witnessed a optimistic development, with active fruits ahieved as well.……
文摘On the occasion of the 20th anniversary of the founding of Gofront Dyeing&Finishing Machinery Manufacturer Ltd.,the Documentary"Originality Made"made by CCTV-9 Discovery channel,during which Gofront Dyeing&Finishing was selected as the first dyeing and finishing equipment manufacturing enterprise in China,presented its premiere in Guangzhou,on November 24th,2017.
