Qingxin Xia

Learn More
The role of thymidylate synthase (TS) is essential as a key rate-limiting enzyme in DNA synthesis. It is the primary target of fluorouracil and its derivates in colorectal cancer. In this study, TS mRNA expression was examined in primary tumor and normal tissues from 76 patients with high- risk stage II/III colorectal cancer by laser capture microdissection(More)
AIMS AND BACKGROUND Esophageal cancer is the eighth most common malignancy and sixth leading cause of cancer deaths in the world. Recent studies have shown the potential role of the aryl hydrocarbon receptor (AhR) in tumor development; however, little is known about its role in esophageal squamous cell carcinoma. In the present study, we evaluated AhR(More)
An automated method of penetration testing was proposed, which is deigned to solve the problems such as high cost and low efficiency in the traditional penetration testing. This method consists of two parts: the automatic generating method of the penetration testing scheme and the automatic executing method of penetration testing scheme. We design and(More)
At present, in researches of Iaas cloud resource scheduling strategies, it is focused that SLA violation or overloaded physical machine can trigger the migration of virtual machines, which will reduce the performance of the system and cause extra energy cost. In this paper, we model the resource of IaaS cloud based on Hidden Markov process to predict the(More)
BACKGROUND To investigate pathologically the characteristics of proximal bronchial invasion of lung cancer, and to provide the theoretic basis for the selection of a proper operation mode. METHODS A total of 398 patients with lung carcinoma underwent radical pulmonectomy and systematic lymphadenectomy. The proximal bronchi and the hilar and mediastinal(More)
Due to the wide applications of IaaS (Infrastructure as a Service), energy-saving technologies of IaaS clouds has attracted much attention. However, it is very difficult for IaaS cloud providers to guarantee both of energy saving and performance under the condition of satisfying SLA (Service Level Agreement). Recently, adaptive-threshold-based methods are(More)
With the development of cloud infrastructure services, IaaS(Infrastructure as a Service) study on energy-saving technology has been attracted more and more attention. IaaS platform providers can provide high performance service for the users. Meanwhile, how to save the energy cost of the cloud platform must be considered without violating the Service Level(More)
Safety requirements have commanded increasing attention as software is playing a more and more important role in today's safety critical systems. As many experts, scholars have found that the main reason for safety critical systems' accident is bad requirements which means inaccurate, incomplete or inconsistent requirements may lead to misunderstanding of(More)
  • 1