After completing this lesson, you should be able to do the following:
Describe the factors that affect planned and unplanned downtime
Describe the basic components of Oracle Data Guard
Explain the differences between physical and logical standby databases
Explain the benefits of creating a Data Guard environment
Explain the use of Data Guard in high-availability architectures
Finally, mobile element based markers
are expected to be co-dominant. However, despite the fact that they are extremely useful for
population genetics, all mobile element based markers have the same drawback: difficultly
of data interpretation and uncertainty about the true nature of the polymorphism.
Specifically, the question may arise as to whether differences in banding patterns are due to
the absence or presence of retrotransposons, or are caused by some other mechanism, e.g.
indels or restriction site loss.
As resources become scarce, they become more valuable. Value is evidenced
both by the increasing prices of resources and by controversy over resource allocation
and management. From forest harvesting and land use conversion throughout North
America, to the fragmentation of tropical bird habitat, to acid rain deposition in
Eastern Europe, to Siberian tiger habitat loss in Russia, people have significantly
affected the ecosystems of the world. Expanding population pressures continue to
cause the price of resources to increase and to intensify conflicts over resource
This paper does not make assertions about the significance of the support to the sponsor, but rather our
focus is on the impact of support to prime MMMFs and its potential to cause investors to perceive that
prime MMMF portfolios are less risky than they actually are. It should be noted that a support amount as
reported in this paper is not necessarily equivalent to a loss realized by the fund sponsor. Instead, in the
case of a security purchase, it is indicative of the loss that would have been realized by the fund sponsor if
it had disposed of...
Hundreds of Thousands of $$$ Worth of Network Equipment can be Rendered Junk in a Flash!
The issue of protecting networks from security breaches has attracted considerable attention but organisations also need to guard against environmental risks such as lightning. Damaged or destroyed equipment, which is integrated into manufacturing or data storage processes, can cause physical damage, as well as high consequential losses due to downtime. Lightning strikes can also delay production due to data loss and damage process control computers or computer-based warehouse and storage systems.
The term “ smart grid” defi nes a self - healing network equipped with dynamic optimization
techniques that use real - time measurements to minimize network losses, maintain
voltage levels, increase reliability, and improve asset management. The operational data
collected by the smart grid and its sub - systems will allow system operators to rapidly
identify the best strategy to secure against attacks, vulnerability, and so on, caused by
Expanders are an essential component of leadracid batteries. They prevent performance losses in negative plates that would otherwise be caused by passivation and structural changes in the active material. The functions of the components of modern negative-plate expanders are described and data are presented to show how the capacity and life of the battery are affected by the type and amount of barium sulfate and lignin incorporated in the expander blend.
Available data suggest that, in addition to the obvious catches of fish for human needs, the by-
catches in the world’s fisheries have a significant ecological impact and cause mortality amongst fin-fish
(particularly the juveniles of commercial fish species), as well as amongst benthic invertebrates, marine
mammals, turtles and birds.
The hole closing reported in this letter is certainly not caused by
deposition of carbon-rich material by the electron beam, a common
phenomenon in electron microscopy. The observation that large pores
expand is in direct contradiction with potential contamination growth.
Secondly, electron-energy-loss spectra (EELS) locally obtained on the
material that filled a nanopore clearly show the presence of silicon and
oxygen,but the absence of any carbon (detection limit was less than 2%).
In recent years, under impacts of human activities and climate change, flood has been increased in both the frequency and magnitude, causing lots of damages to people. This study presents a method to evaluate the direct spatial damages of flooding based on inundation depth and land use data. Damage functions for different types of land use arc selected and applied. Matlab strings and GIS are combined to calculate damage in monitery term. The method is applied for estimating loss caused by thc flood event November 1999 for Huong rivce basin.