1. How does penicillin act on a bacterial cell - or stated another way - what is the mechanism of action of penicillin? what is the cellular target of the antibiotic?
2. Why does penicillin not act on human cells? or stated another way - why does penicillin have selective toxicity?
3. Be specific about why the penicillin may be able to act differently on one type of cell. What about that one type of cell allows penicillin to act more effectively?
In: Biology
In: Economics
Researchers studying the human voice measure the volume in decibels. Normal conversation occurs at around
50 decibels but some singers can reach over 100 decibels. The researchers choose a random sample of 25
professional opera singers and record the maximum volume reached by each. They find the mean volume for
this sample is 98 decibels with a standard deviation of 10 decibels. Carry out a hypothesis test with alpha= 0.05,
to determine if the mean maximum volume of all professional opera singers is 100 decibels.
In: Statistics and Probability
In: Statistics and Probability
Confidence Intervals
In a random sample of 1100 American adults it was found that 320 had hypertension (high-blood pressure). The US Department of Health and Human Services (HHS) wants the population proportion of hypertension to 16% by 2022.
Find the 95% confidence interval for the proportion of all adult Americans that have hypertension.
Interpret the confidence interval in the words of the problem.
Find the error bound.
Does this data and analysis provide evidence that the population proportion of hypertension is different from the HHS target value? Justify!
In: Statistics and Probability
QUESTION
Subject A consumed ammonium chloride (NH4Cl) and subject B consumed bicarbonate (NaHCO3).
a) Using a flow chart of the negative feedback loops involved, (for subject A) explain the implications of ingesting ammonium chloride on the human body.
Include the initial changes in the pH and bicarbonate (HCO3-) of the plasma and the response of the kidney to these changes in terms of increases or decreases of:
b) repeat part (a) for subject B
Thank you! :)
In: Anatomy and Physiology
Target handles a lot of data from many different sources (customers, vendors, suppliers, employees, etc.). The concept of Big Data is a concern for such companies. Answer the following questions: What was the weakness behind the Target data breach? Were third parties involved? How did Target run its POS system? How could it be prevented? How much does human error come into play with big enterprise security breaches? What are some challenges in Big Data with regards to security?
In: Computer Science
Q1. Answer the following questions in detail with examples as
applicable:
a) What is different HR Structural Alternatives and how
effectiveness and
optimization in People Management relates to core activities of
HR?
b) Discuss the complexity of outsourcing process and how to manage
it for
organizational efficiency.
c) Describe the latest trends in Human Resource information systems
and technology
considerations.
d) Outline how HR can assure that communication can be used as an
effective tool
towards delivering messages and exchanging organizational
information
In: Operations Management
250 word minimum; no maximum word count. Display the word count at the end of your post.
In: Nursing
1. Relate the importance of keeping records.
2. Compare and contrast receipts and invoices.
3.Briefly describe the difference between cash and accrual methods of record keeping.
4.Briefly discuss the fundamental purpose of accounting principles in effective recordkeeping.
5. Design a human resource management system for a very small employer with 10 employees or less.
6. The if–then construct is often used to describe a business process. For example, “if the person is a Member, then enrollment proceeds. “ This is an example of which business process element?
In: Operations Management