why, in an immunostaining procedure for a specific antigen, do you normally use two antibodies sequentially? Support your answers with citations from the scientific literature

Project 1

1. Discuss current fiscal and monetary policy
2. Define what fiscal and monetary policy is.

include text citations and works cited if you used.

Discuss how defects in cell to cell communication may lead to human diseases. Be sure to include citations from the scientific literature to support your posts.

Which of the following best describes the isolation property in regards to transactions?

A)Either all actions in a transaction are executed or no actions are done

B)The DBMS changes from one consistent state to another consistent state when a transaction completes successfully

C)A transaction executes with the same outcome, without any impact from other transactions executing concurrently

D)The DBMS guarantees that changes are made persistently upon successful completion of a transaction

2)Which of the following statements best describes a phantom read

A)One user reads a set of rows from a table. Another user inserts a row that matches the where condition read by the first user. The first user reads the same set of rows again getting the new row in addition to the rows that the user read the first time.

B)A select from one user calculating a summary or aggregate function (e.g. avg, max, sum, etc.) reads some rows from a table. At the same time another user is updating some of those same rows to contain different values. The first user reads some of the rows before the update changes them and reads some rows after the update changes them.

C)Two users update the same columns of the same row of the same table at the same time. One update will be overwritten by the other.

D)One user reads the same row more than once. Between the reads, an update from another user modifies the row.

3)If a schedule’s dependency graph is cyclic, then the schedule it describes is serializable.

A)True

B)False

4)By themselves, exclusive write locks and shared read locks do not guarantee serializabililty.

A)True

B)False

2. According to a 2018 survey conducted by the National Center for Health Statistics, 11.2 percent of the U.S. residents (ages 12 and older) have used illicit drugs in 2017. Half of the U.S. residents (ages 12 or older) in 2017 were women and 8.8 percent of women used illicit drugs in 2017. About 61 percent of the U.S. residents (ages 12 or older) in 2017 were non-Hispanic whites and 11.6 percent of the non-Hispanic whites have used illicit drugs in 2017. Please answer the following questions based on the information given in this problem.

1. If a random (12 year or older) U.S. resident happens to be non-user of illicit drugs, what is the probability that he is a man? Please show the necessary steps.   [3 points]        
2. What is the probability that a random (12 year or older) U.S resident will be a man or illicit drug user? Please show the necessary work.          [2 points]
3. What is the probability that a random U.S resident (12 year or older) will be neither a woman and nor illicit drug user? Show the necessary work.                                [2 points]
4. Are being a man and using illicit drugs independent events for a (12 year or older) U.S resident? Please show how you arrived at your answer.                                [2 points]
5. What is the probability that a random (12 year or older) U.S resident will be both non-white and illicit drug user? Assume that all the other races except the non-Hispanic whites are counted as non-white. Please show the necessary steps. [3 points]

Question 2: Wastewater Ltd acquired an item of plant on 1 July 2016 for $3 660 000. When the item of plant was acquired, it was initially assessed as having a life of 10000 hours. During the reporting period ending 30 June 2017 the plant was operated for 3000 hours.

At 1 July 2017 the plant had a remaining useful life of 7000 hours. On 1 July 2017 the plant underwent a major upgrade costing $234 600. Management believes that this upgrade will add a further 2000 hours of operating time to the plant's life. During the reporting period ended 30 June 2018 the plant was operated for 4000 hours.

On 1 July 2018 the plant underwent a further major upgrade, the cost of which amounted to $344 900, and this added a further 3100 hours' operating time to its life. During the reporting period ending 30 June 2019 the plant was operated for 3800 hours.

Required: Prepare all the journal entries that Wastewater Ltd would prepare for the years ending 30 June 2017, 30 June 2018 and 30 June 2019 to account for the acquisition, subsequent expenditure and depreciation on the asset.

Please don't copy other CHEGG ANSWERS because they are not answered according to the question. please answer according to question and marks

what does database mean?

What is multi-media database

1. What is a relation?
2. What is a relational DB or database?
3. What is an unnormalized relation? Is it a relation according to the definition of the word relation?
4. What is a primary key?
5. What is the primary key for each table in the Colonial Adventure Tours database shown in Figures 1-15, 1-16, 1-17, 1-18, and 1-19 in Chapter 1?