Even though the trait approach to leadership has no empirical support, it is still widely used. In your opin- ion, why is this so? In what ways is the use of the trait approach helpful to those who use it? In what ways is it harmful to those who use it?

1. List five questions about the rate at which Alka-Seltzer^® tablets dissolve if the temperature was held constant and one of the controlled variables was changed. Develop a new hypothesis based on one of the questions. Remember that a hypothesis must be testable with empirical or measurable data.

Consider the following questions in your post: In Summa Theologiae, Question 2, Article 3 Aquinas has five arguments (five ways) for the existence of God. Which one of Aquinas' arguments seems to be the most reasonable? What are the flaws to this type (empirical) of reasoning?

When it is necessary to work with a large number of objects that are particularly expensive to instantiate and each object is only needed for a short period of time, the performance of an entire application may be adversely affected. An object pool design pattern may be deemed desirable in cases such as these.  The object pool pattern is a design pattern that uses a set of initialized objects kept ready to use – a "pool" – rather than allocating and destroying them on demand.  A client of the pool will request an object from the pool and perform operations on the returned object.  When the client has finished, it returns the object to the pool rather than destroying it, allowing it to be used again in the future without repeating the computationally expensive instantiation process. It is important to note that once an object has been used and returned, existing references will become invalid.

When a new object is needed, it is requested from the pool. If a previously prepared object is available it is returned immediately, avoiding the instantiation cost. If no objects are present in the pool, a new item is created and returned.  In some object pools the resources are limited so a maximum number of objects is specified.  If this number is reached and a new item is requested, the thread will be blocked until an object is released back into the pool.

Object pools are primarily used for performance.  For example, a connection pool is a cache of database connections maintained so that the connections can be reused when future requests to the database are required.  Connection pools are used to enhance the performance of executing commands on a database. Opening and maintaining a database connection for each client, especially requests made to a dynamic database-driven website application, is costly and wastes resources.  In connection pooling, after a connection is created, it is placed in the pool and it is used again so that a new connection does not have to be established.  If all the connections are being used, a new connection is made and is added to the pool. Connection pooling also cuts down on the amount of time a user must wait to establish a connection to the database.

Consider a dummy ServiceObject class that has a single state variable (String myState) and a single method doSomething() that just prints “myState”.   Each client of ServiceObject will have its own “myState”

1. Design and implement a class(es) that allows a pool of a specified number (n) of instances of ServiceObject.  The class(es) should offer the following methods:

• getInstance():  returns to a client an instance if one is available.  If no instance is available and the maximum number of instances (n) is not reached, an instance is created and returned.  The instance returned by the getInstance() method should not be used again until" released.  
• releaseInstance(ServiceObject):  releases the object for future use

Emerson Process Management, a global supplier of measurement, analytical, and monitoring instruments and services based in Austin, Texas, had a new data warehouse designed for analyzing customer activity to improve service and marketing that was full of inaccurate and redundant data. The data in the warehouse came from numerous transaction processing systems in Europe, Asia, and other locations around the world. The team that designed the warehouse had assumed that sales groups in all these areas would enter customer names and addresses the same way, regardless of their location. In fact, cultural differences combined with complications from absorbing companies that Emerson had acquired led to multiple ways of entering quote, billing, shipping, and other data. Assess the potential business impact of these data quality problems. What decisions have to be made and steps taken to reach a solution?

Under what circumstances does a hospital have a duty to provide emergency services to the public? Provide examples from the reading and from sources found through research beyond the assigned reading. Always cite your sources and include intext citations.

End your discussion with a question or two for your classmates.

For this discussion, consider the role of the LPN and the RN in the nursing process. How would the LPN and RN collaborate to develop the nursing plan of care to ensure the patient is achieving their goal? What are the role expectations for the LPN and RN in the nursing process?

include a reference and in-text citations from Rasmussen college library or else where.

The shutdowns and barriers to international shipping have

stressed suppliers, supply lines, and procurement

departments. Find at least 3 examples (citations required)

of problems and how the companies involved approached

it. Evaluate how, or if, future risk analyses should change

or how, if, supply strategies should change in the examples

you use