Objective To investigate the effects of the flexible surgical approaches on therapeutic and cosmetic outcomes of facial nevi.Methods From August 2002 to January 2008,16 cases with facial nevi had been treated in our w...Objective To investigate the effects of the flexible surgical approaches on therapeutic and cosmetic outcomes of facial nevi.Methods From August 2002 to January 2008,16 cases with facial nevi had been treated in our wards with the selected approaches.Surgical approaches including serial excision or one-time radical excision,free skin graft,and expanded flap were adopted in accordance with the individual size and location of the facial nevi.Results All cases experienced complete excision and had satisfactory cosmetic appearance in the end.Conclusion The flexible surgical measures help to minimize the risk of malignant transformation and achieve good cosmetic results.展开更多
Since Libert and Quisquater's identity based signcryption scheme cannot provide public verifiability after research, the paper proposes a new identity based signcryption scheme. The scheme uses quadratic residue a...Since Libert and Quisquater's identity based signcryption scheme cannot provide public verifiability after research, the paper proposes a new identity based signcryption scheme. The scheme uses quadratic residue and pairings over elliptic curves to realize public verifiability. By analysis the scheme is proved to be more efficient than Libert and Quisquater's scheme. Moreover, a security proof of the original scheme is presented in the random oracle model.展开更多
A sodium zinc thiostannate Na2ZnSn2S6 is reported with its interesting structural features and property characteristics. It crystallizes in the polar space group Fdd2 （No. 43） with the unit cell parameters ofa=12.94...A sodium zinc thiostannate Na2ZnSn2S6 is reported with its interesting structural features and property characteristics. It crystallizes in the polar space group Fdd2 （No. 43） with the unit cell parameters ofa=12.945（3） A, b=23.556（5） A, c=7.2774（15）/k and Z=8. In its structure, Zn-centered penta-tetrahedra [ZnSn4S15]Z2- clusters arrange regularly along the diagonals of ab and ac planes to form a 3D tunnel structure with charge-balanced Na＋ cations located inside the tunnels. Note that SnS4 tetrahedra connect with each other by sharing comers to form infinite ∞[SnS3]n chains that are rarely found in known alkali-thiostannates. Remarkably, NazZnSnzS6 exhibits the good NLO performances, such as large SHG response （4 times that of AgGaS2 at 55-88 μm under the 2.09 μm radiation）, wide infrared （IR） transmission region （0.35-25 μm） and relatively high laser damage threshold （77.5 MW/cm2, -2 times that of AgGaS2）. Theoretical calculations have also been performed to investigate the structure-property relationship and the results indicate that the origin of NLO effect can be attributed to the penta-tetrahedra [ZnSn4S15]12- clusters.展开更多
Generalized linear mixed models(GLMMs)have been widely used in contemporary ecology studies.However,determination of the relative importance of collinear predictors(i.e.fixed effects)to response variables is one of th...Generalized linear mixed models(GLMMs)have been widely used in contemporary ecology studies.However,determination of the relative importance of collinear predictors(i.e.fixed effects)to response variables is one of the challenges in GLMMs.Here,we developed a novel R package,glmm.hp,to decompose marginal R2^(2)explained by fixed effects in GLMMs.The algorithm of glmm.hp is based on the recently proposed approach‘average shared variance’i.e.used for multivariate analysis.We explained the principle and demonstrated the use of this package by simulated dataset.The output of glmm.hp shows individual marginal R2^(2)s that can be used to evaluate the relative importance of predictors,which sums up to the overall marginal R2^(2).Overall,we believe the glmm.hp package will be helpful in the interpretation of GLMM outcomes.展开更多
文摘Objective To investigate the effects of the flexible surgical approaches on therapeutic and cosmetic outcomes of facial nevi.Methods From August 2002 to January 2008,16 cases with facial nevi had been treated in our wards with the selected approaches.Surgical approaches including serial excision or one-time radical excision,free skin graft,and expanded flap were adopted in accordance with the individual size and location of the facial nevi.Results All cases experienced complete excision and had satisfactory cosmetic appearance in the end.Conclusion The flexible surgical measures help to minimize the risk of malignant transformation and achieve good cosmetic results.
文摘Since Libert and Quisquater's identity based signcryption scheme cannot provide public verifiability after research, the paper proposes a new identity based signcryption scheme. The scheme uses quadratic residue and pairings over elliptic curves to realize public verifiability. By analysis the scheme is proved to be more efficient than Libert and Quisquater's scheme. Moreover, a security proof of the original scheme is presented in the random oracle model.
基金supported by the Western Light Foundation of Chinese Acad-emy of Scienees(Grant No.XBBS201318)the National Natural Science Foundation of China(Grant Nos.51402352,51425206&91622107)+3 种基金the National Key Research Project(Grant Nos.2016YFB1102302 & 2016YFB0402104)Xinjiang Key Resealvh and Development Program(Grant No.2016B02021)Major Program of Xinjiang Uygur Autonomous Region of China during the 13th Five-Year Plan Period(Grant No.2016A02003)Fund of Key Laboratory of Opmelectronic Materials Chemistry and Physics,Chinese Academy of Sciences(Grant No.2008DP173016).
文摘A sodium zinc thiostannate Na2ZnSn2S6 is reported with its interesting structural features and property characteristics. It crystallizes in the polar space group Fdd2 （No. 43） with the unit cell parameters ofa=12.945（3） A, b=23.556（5） A, c=7.2774（15）/k and Z=8. In its structure, Zn-centered penta-tetrahedra [ZnSn4S15]Z2- clusters arrange regularly along the diagonals of ab and ac planes to form a 3D tunnel structure with charge-balanced Na＋ cations located inside the tunnels. Note that SnS4 tetrahedra connect with each other by sharing comers to form infinite ∞[SnS3]n chains that are rarely found in known alkali-thiostannates. Remarkably, NazZnSnzS6 exhibits the good NLO performances, such as large SHG response （4 times that of AgGaS2 at 55-88 μm under the 2.09 μm radiation）, wide infrared （IR） transmission region （0.35-25 μm） and relatively high laser damage threshold （77.5 MW/cm2, -2 times that of AgGaS2）. Theoretical calculations have also been performed to investigate the structure-property relationship and the results indicate that the origin of NLO effect can be attributed to the penta-tetrahedra [ZnSn4S15]12- clusters.
基金This work was supported by the National Natural Science Foundation of China(32271551)the Metasequoia funding of Nanjing Forestry University.Conflict of interest statement.The authors declare that they have no conflict of interest.
文摘Generalized linear mixed models(GLMMs)have been widely used in contemporary ecology studies.However,determination of the relative importance of collinear predictors(i.e.fixed effects)to response variables is one of the challenges in GLMMs.Here,we developed a novel R package,glmm.hp,to decompose marginal R2^(2)explained by fixed effects in GLMMs.The algorithm of glmm.hp is based on the recently proposed approach‘average shared variance’i.e.used for multivariate analysis.We explained the principle and demonstrated the use of this package by simulated dataset.The output of glmm.hp shows individual marginal R2^(2)s that can be used to evaluate the relative importance of predictors,which sums up to the overall marginal R2^(2).Overall,we believe the glmm.hp package will be helpful in the interpretation of GLMM outcomes.
