Classification of Kantowski-Sachs and Bianchi Type III Space-Times According to Their Killing Vector Fields in Teleparallel Theory of Gravitation

In this paper we classify Kantowski-Sachs and Bianchi type Ⅲ space-times according to their teleparallel Killing vector fields using direct integration technique. It turns out that the dimension of the telepaxallel Killing vector fields are 4 or 6, which are the same in numbers as in general relativity. In case of 4 the teleparallel Killing vector fields are multiple of the corresponding Killing vector fields in general relativity by some function of t. In the case of 6 Killing vector fields the metric functions become constants and the Killing vector fields in this case are exactly the same as in general relativity. Here we also discuss the Lie algebra in each case.     

Implementation of at‐line capillary zone electrophoresis for fast and reliable determination of adenovirus concentrations in vaccine manufacturing

A CZE method was validated and implemented for fast and accurate in‐process determination of adenovirus concentrations of downstream process samples obtained during manufacturing of adenovirus vector‐based vaccines. An analytical‐quality‐by‐design approach was embraced for method development, method implementation, and method maintenance. CZE provided separation of adenovirus particles from sample matrix components, such as cell debris, residual DNA and proteins. The intermediate precision of the virus particle concentration was 6.9% RSD and the relative bias was 2.3%. In comparison, the CZE method is intended to replace a quantitative polymerase chain reaction method which requires three replicates in three analytical runs to achieve an intermediate precision of 8.1% RSD. Given that, in addition, the time from sampling till reporting results of the CZE method was less than 2 h, whereas quantitative polymerase chain reaction requires 3 days, it follows that the CZE method enables faster processing times in downstream processing.     

信息安全保障模式变革浅析

互联网时代的来临给人们带来便利的同时也使信息安全与网络安全形势日益严峻。形形色色的漏洞层出不穷,传统的安全保障模式已经无法有效地应对当前的威胁。本文分析了信息安全形势和现状,阐述了由漏洞挖掘、漏洞利用所构成的病毒产业链对现有安全技术和理念的冲击。根据病毒产业链中各个环节的特点,提出了基于"云安全"思想的新型的安全保障模式,使之能够快速感知和捕获新的威胁,并从源头上予以监控。     

环上(p,q)型Lorentz李代数的killing型与理想

设R是有1的交换环,2是R的单位,给出了R上(p,q)型Lorentz李代数so(R)的killing型简洁计算公式,证明了其killing型是非退化的.刻画了so(R)的阶理想,进而证明so(R)的所有理想都是标准的.     

具有非退化Killing型的广义李超代数

设F是特征数为零的域.本文证明了F上的有限维广义李超代数的Killing型是相容的、不变的与上对称的.进而证明了具有非退化Killing型的有限维广义李超代数的 若干性质，最后得出这种广义李超代数必为有限个典型的广义李超代数的直积.     

利用虚拟机搭建安全的木马及病毒测试系统

网络安全十分重要,对网络中的木马及病毒进行安全测试,搭建一个安全的测试系统十分重要,本文探讨一种采用虚拟机技术来构建安全的木马及病毒测试系统的方法。     

On a Solvable Diffusion with Time Dependent “Killing”

Abstract

In this paper we consider a diffusion process with arbitrary time dependent diffusion coefficient and no drift, on which a quadratic time dependent killing rate operates. We determine the corresponding Kac's semigroup (KS) and the distribution function of the lifetime of the particle. A criteria is given to characterize the survival probability. The Holder exponent and the tightness properties of the process are determined. Applications include the determination of the law of certain functionals and Ito processes associated with the diffusion and the construction of martingales adapted to Brownian filtrations.     

Nano/Micromotors for Diagnosis and Therapy of Cancer and Infectious Diseases

Micromotors are man-made nano/microscale devices capable of transforming energy into mechanical motion. The accessibility and force offered by micromotors hold great promise to solve complex biomedical challenges. This Review highlights current progress and prospects in the use of nano and micromotors for diagnosis and treatment of infectious diseases and cancer. Motion-based sensing and fluorescence switching detection strategies along with therapeutic approaches based on direct cell capture; killing by direct contact or specific drug delivery to the affected site, will be comprehensively covered. Future challenges to translate the potential of nano/micromotors into practical applications will be described in the conclusions.     

Identification of a microRNA encoded by Anticarsia gemmatalis multiple nucleopolyhedrovirus

MicroRNAs are regulatory RNAs that are scarcely described in Baculoviruses. In this work we predicted a microRNA in silico, denominated agmnpv-miR-4, encoded in the genome of Anticarsia gemmatalis Nucleopolyhedrovirus (AgMNPV), which is homologous to the already validated bmnpv-miR-4 from Bombyx mori Nucleopolyhedrovirus (BmNPV). Considering information known for bmnpv-miR-4 such as seed sequence, coding location in the genome and putative target binding, we searched for the coding sequence of agmnpv-miR-4 in AgMNPV genome. A precursor sequence of agmnpv-miR-4 was predicted, and we identified a putative 23 nt mature microRNA, agmnpv-miR-4, coded in the complementary strand of AgMNPV-2D between positions 49,450 and 49,472. We validated agmnpv-miR-4 by Northern blot from HighFive cells and A. gemmatalis larve extracts infected with AgMNPV.     

Generalized Contact Manifolds

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