The Fitzhugh-Nagumo model for the electrical impulse in a neuron states that, in the absence of relaxation effects, the electrical potential in a neuron v(t) obeys the differential equation
dv/dt = −v[v2 − (1 + a)v + a]
where a is a positive constant such that 0 < a < 1.
(a) For what values of v is v unchanging (that
is, dv/dt = 0)? (Enter your answers as a comma-separated
list.)
v = ______
(b) For what values of v is v increasing? (Enter your answer using interval notation.)
______
(c) For what values of v is v decreasing? (Enter
your answer using interval notation.)
______
Please show all work neatly, line by line, and justify steps so I can learn.
Thank you!
In: Math
Derive the expression of density of states for quantum wells and based on the result of your derivation make comment about the advantages of quantum-well lasers as compared to bulk lasers.
In: Physics
The first sentence of the “The Dignity and the Rights of Workers” documents states:
“The economy must serve the people, not the other way around.”
Secondly, within “The Common Good” document, please note the highlighted section that states:
“(74) Catholic Social Teaching recognizes the fundamental and positive value of business, the market, private property and free human creativity in the economic sector. But sometimes market forces cannot deliver what the common good demands…”
With this as a context, please read the following statement and state whether you agree or disagree and then provide your reasoning/defense for reaching this conclusion. Please consider this statement in light of their less expensive product line (i.e., Night-Train, Wild Irish Rose, Thunderbird)
“EJ Gallo is an ethical public company whose goal is to maximize shareholder value. The strategies employed by senior management exemplifies keen marketing insight and delivers on their mission.”
In: Economics
In the Unites States, as in most countries, we value the benefits of a free and competitive market. This suggests an interesting concepts concerning antitrust laws and other regulations on business activities within a competitive economic market. What if antitrust laws, policies, and regulations did not exist? In your response consider the following:
What might happen to an economic marketplace if typical regulations did not exist, such as antitrust, health and safety, or unfair practices?
Provide a specific example that would be impacted by not having these protections in place.
On the other side of the question can you identify an economic marketplace that isn't regulated enough? Why? Would more regulations in this market place benefit consumers? Producers?
If necessary, complete additional research to support your ideas on this topic.
Please be sure to validate opinions and ideas with citations and references in APA format.
In: Economics
A manufacturer of colored candies states that 13% of the candies in a bag should be brown, 14% yellow, 13% red, 24% blue, 20% orange, and 16% green. A student randomly selected a bag of colored candies. He counted the number of candies of each color and obtained the results shown in the table. Test whether the bag of colored candies follows the distribution stated above at the alpha=0.05 level of significance.
Determine the null and alternative hypotheses.
Compute the expected counts for each color.
| Color | Observed Count | Expected Count |
| Brown | 63 | |
| Yellow | 64 | |
| Red | 56 | |
| Blue | 59 | |
| Orange | 81 | |
| Green | 63 |
What is the test statistic?
What is the P-value of the test?
In: Statistics and Probability
Derive the expression of density of states for quantum wells and based on the result of your derivation make comment about the advantages of quantum-well lasers as compared to bulk lasers.
In: Physics
7. The rationale for the increased reliance by the States for revenue generated by gambling is that these sources of funds (lottery, casinos, racing) have an effective tax rate that is lower than most other taxes, making this fiscal choice “painless”. True/False _________________Correction to make true ___________________________________________________________________
8. The compensating use tax is used as to implement the origination principle of the sales tax.
True/False _______________ Correction to make true ____________________________________________________________________________________
9. Personal income taxes have become less important as a source of revenue for State governments over the last 30 years.
True/False _______________ Correction to make true ____________________________________________________________________________________
In: Economics
There is a statement in AIS that states, “collecting too much information is that same as not collecting any” … the last thing you want to do from a management point of view is to collect information about your company that you will not be able to analyze and make decisions on. The idea about information is that ability to make strong decisions that will help the business. Now, putting that in consideration, how can you determine how much information is to be collected? Provide an example
In: Accounting
international marketing - asap
If a label on a product states "Made in Thailand" and a similar product has a label "Made in Germany," why do consumers consider the latter to be better than the former? What difference does a label make in consumer perceptions?
In: Operations Management
In a state machine diagram with composite states, what is the meaning of a transition that goes from the boundary of a state? What is the meaning of a transition that goes to the boundary of a state?
In: Computer Science