Relationship between Multi-Output Partially Bent Functions and Multi-Output Bent Functions

0 IntroductionSince Carlet[1]presented the definition of partially Bentfunctions in 1992 , people have investigated partiallyBent functions and obtained some results[2-7]. Multi-outputpartially Bent functions are generalized partially Bent functionswith good cryptographical properties .At the beginning of this paper , we present the definitionof multi-output partially Bent functions . Then the clear func-tion expressionand Walshspectrumexpression between multi-output partially Bent functio…     

Pricing convertible bonds and change of probability measure

The changes of numeraire can be used as a very powerful tool in pricing contingent claims in the context of a complete market. By using the method of numeraire changes to evaluate convertible bonds when the value of firm, and those of zero-coupon bonds follow general adapted stochastic pro- cesses in this paper, using Ito theorem and Gisanov theorem. A closed-form solution is derived under the stochastic volatility by using fast Fourier transforms.     

Molecular dynamics simulations exploring drug resistance in HIV-1 proteases

Although HIV-1 subtype B still dominates the epidemic AIDS in developed countries, an increasing number of people in developing countries are suffering from an epidemic of non-subtype B viruses. What is worse, the efficacy of the combinational use of an-tiretroviral drugs is gradually compromised by the rapid development of drug resistance. To gain an insight into drug resistance, 10-ns MD simulations were simultaneously conducted on the complexes of the TL-3 inhibitor with 4 different proteases (B_wt, B_mut, F_wt and F_mut), among which the complex of the B_wt protease with the TL-3 inhibitor was treated as the control group. Detailed analyses of MD data indicated that the drug resistance of B_mut against TL-3 mainly derived from loss of an important hydrogen bond and that of F_wt was caused by the decrease of hydrophobic interactions in S1/S1’ pocket, while both of the two reasons mentioned above were the cause of the F_mut protease’s resistance. These results are in good agreement with the previous experiments, revealing a possible mechanism of drug resistance for the aforementioned protease subtypes against the TL-3 inhibitor. Additionally, another indication was obtained that the mutations of M36I, V82A and L90M may induce structural transforms so as to alter the inhibitor’s binding mode.     

Evidence for the Existence of Cross-Linked Intermediates during Unfolding and Refolding of CK in UGGE

IntroductionCreatine kinase ( CK) plays an important role incell energy metabolism[1] .It catalyses thereversible transfer of a phosphoryl group fromATP to creatine generating phosphocreatine andADP.Owing to its importance in bioenergetics,CK has been extensively studied.There are fourisoforms of the enzyme:muscle type( MM) ,braintype ( BB) ,hybrid type ( MB) ,and mitochondriatype( Mi Mi) .Muscle- CK is a dimer composed of twoidentical subunits,both with relative molecularmass of4.3×…     

可转换债券定价模型探讨

针对可转换债券的性质及相关内容进行了深入分析 ,并给出影响其发行效果的组合模型 .在详细考察基础变量——利率和股票价格行为特征的基础上 ,运用无套利原理推导出可转换债券的双因素定价模型 ,其特例便是著名的 Black-Scholes模型.     

我国企业债券市场流动性现状与对策

阐述了债券市场流动性理论,分析了我国企业债券市场流动性现状,并针对我国企业债券市场存在流动性过低、阻碍了中国金融市场融资结构的改革步伐等问题,提出了提高企业债券市场流动性的对策设想。     

Vasicek状态空间模型与上交所国债利率期限结构实证

在分析现有多因子V asicek利率模型基础上,通过改进模型状态因子非相关性假定,推导出新的单、双因子V asicek状态空间利率模型及相应参数估计方法。最后利用上交所国债隐含的收益率数据估计了单因子及双因子V asicek状态空间利率模型。实证表明改进的双因子V asicek利率模型,比较准确地描述了利率期限结构的动态变化特征。     

质子化N，N＇-双（吡啶基-2-亚甲基）-1，4-二氮环庚烷高氯酸盐的合成、表征和晶体结构研究

合成并表征了一个吡啶功能化1,4-二氮环庚烷(DACH)化合物[N,N'-双(吡啶基-2-亚甲基)-1,4-二氮环庚烷]的质子化高氯酸盐. 用X-射线衍射技术测定了标题化合物H4BPDACH·(ClO4)4·1.5H2O (1)的晶体结构三斜晶系,P-1空间群,晶胞参数a=0.791 1(5) nm, b=1.269 5(9) nm, c=1.517 8(11) nm, α=104.448(13)°, β=102.383(13) °, γ= 92.159(12) °, V=1.435 2(17) nm3, Z=2. 化合物1的不对称单元中包含两个晶体学独立的[H4BPDACH]4+阳离子,其中DACH环均采取类似的船式构象,但两个侧臂吡啶环分别采取顺势和反式排列. 质子化NH基团和溶剂及阴离子之间存在多重氢键相互作用,这进一步稳定了此结构.     

Bent函数的性质与构造

给出了形如F(x, y) = f (x τ(y))q(y) g(y) 的布尔函数是Bent 函数的充分必要条件,并据此给出了二次Bent 函数的已拥有等价类. 另,文中还给出了Bent 函数的几种构造方法. 特别地,给出了Bent 基函数的完全构造.     

浅议我国企业债券市场发展途径

通过对我国企业债券发展历程及存在问题的研究，探讨了企业债券的发展途径，提出了相应的政策建议。