Kekkaishi’s Blog

Practice materials for IT professionals looking for certification in CCNA, CCNP, CCDP, MCSE, MCDBA, MCSD, MCSA, MCP, CIW, ORACLE, Security+ and A+.
Certay IT Development is the online Certification Expert, which provide TestKing and Pass4sure the real questions and correct answers since 2001. In net-based training and certification preparation services field, Certay IT Development has the […]

Serum is a complex mix of albumins, growth factors and growth inhibitors and is probably one of the most important components of cell culture medium. The most commonly used serum is fetal bovine serum. Other types of serum are available including newborn calf serum and horse serum. The quality, type and concentration of serum can […]

CCNP certification validates a network professional’s ability to install, configure and troubleshoot converged local and wide area networks with 100 to 500 or more nodes. Network Professionals who achieve the CCNP have demonstrated the knowledge and skills required to manage the routers and switches that form the network core, as well as edge applications that […]

This article provides helpful information for you to prepare for Cisco exam 350-001, the CCIE Written exam. The CCIE (Cisco Certified Internetwork Expert) certification has historically been the most valued in the area of networking. There are two steps to achieve this valued certification:

A 100 question written test, which this Cramsession will help to […]

The Microsoft 2003 Server Exam, 70-290, is one of the core exams of the MCSE, MCSA, and even the MCDBA (Database Administration) certification tracks. The exam is designed to test a candidate’s knowledge of managing a Windows Server 2003 environment. It also tests the candidate’ ability to configure Windows Server 2003 to work with key […]

Want to start getting into routers etc so looking at doing some cisco stuff? Think you need to start on the CCNA? but dont really know where or know of any real books that can teach you this from scratch? Here is a guideline for the Cisco newbies to start on the CCNA.
Q: Looking […]

Large numbers of cell lines look identical. Cell lines with very different origins and biological characteristics typically cannot be separated on grounds of morphology or culture characteristics. Infection or contamination of a cell line with an adventitious virus or mycoplasma may significantly change the characteristics of the cells but again such contamination will be inapparent. […]

Disinfection
Methods designed for the disinfection/decontamination of culture waste, work surfaces and equipment represent important means for minimizing the risk of harm.
The major disinfectants fall into four groups and their relative merits can be summarized as follows:
Hypochlorites (e.g. Chloros, Presept)

Good general purpose disinfectant
Active against viruses
Corrosive against metals and therefore should not be used on […]

The main aim of risk assessment is to prevent injury, protect property and avoid harm to individuals and the environment. The performance of risk assessment is a legal requirement under the Health and Safety at Work Act, UK. There are other EC directives covering Health and Safety at Work, you can visit the European Agency […]

Adherent cell lines will grow in vitro until they have covered the surface area available or the medium is depleted of nutrients. At this point the cell lines should be sub-cultured in order to prevent the culture dying. To subculture the cells they need to be brought into suspension. The degree of adhesion varies from […]