What are the three mechanism used to close/open channels? What is the difference between channels made of proteins with beta-pleated sheets versus alpha helix structures? Give an example of each.

What type of amino acid must produce the helix or sheet that spans the lipid bilayer?

Describe how the glucose transporter is regulated.

INTERNET OF THINGS (IOT)

23. Explain the difference between the three different levels of virtualisation: CPU Instruction Set level, Hardware Abstraction Layer (HAL) level, and Operating System level.

Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a "need for closure scale" to a group of students enrolled in an introductory psychology course. The "need for closure scale" has scores ranging from 101 to 201. For the 83 students in the highest quartile of the distribution, the mean score was x = 177.30. Assume a population standard deviation of σ = 7.69. These students were all classified as high on their need for closure. Assume that the 83 students represent a random sample of all students who are classified as high on their need for closure.

Find a 95% confidence interval for the population mean score μ on the "need for closure scale" for all students with a high need for closure. (Round your answers to two decimal places.)

lower limit'

upper limit

Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a "need for closure scale" to a group of students enrolled in an introductory psychology course. The "need for closure scale" has scores ranging from 101 to 201. For the 76 students in the highest quartile of the distribution, the mean score was x = 178.10. Assume a population standard deviation of σ = 8.21. These students were all classified as high on their need for closure. Assume that the 76 students represent a random sample of all students who are classified as high on their need for closure. How large a sample is needed if we wish to be 99% confident that the sample mean score is within 2.1 points of the population mean score for students who are high on the need for closure? (Round your answer up to the nearest whole number.)

1. What are the three basic manufacturing cost categories?

2. What are the main difference between product costs and period costs? Give examples of each.

3. What is the difference between a fixed cost and a variable cost? Give examples of each.

4. What are differential costs? Opportunity costs? Sunk costs? Be specific and give examples of each.

Please review youre grammar before posting the question.

Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a "need for closure scale" to a group of students enrolled in an introductory psychology course. The "need for closure scale" has scores ranging from 101 to 201. For the 79 students in the highest quartile of the distribution, the mean score was x = 176.50. Assume a population standard deviation of σ = 7.47. These students were all classified as high on their need for closure. Assume that the 79 students represent a random sample of all students who are classified as high on their need for closure. Find a 95% confidence interval for the population mean score μ on the "need for closure scale" for all students with a high need for closure. (Round your answers to two decimal places.)

lower limit

upper limit

In your journal for this week, write two or three well-developed paragraphs regarding the differences between judgment and condemnation.

Identify a time in your life when you were unfairly judged and even unjustly condemned. How did you react? How did you grow from the experience? What would you do differently now?

You are making a decision between three (3) competing bids for a new road construction. Describe and discuss the engineering decision making tools that you might employ to help you decide on the best proposal.

Sound attenuation is an important in fabricating walls between rooms in luxury hotels. Three wall cavity fillers have been identified for use. The desired reduction in sound is based on the decibel level heard on the opposite side of a wall from the side where the sound intensity is at 88 decibels using the A weighting method. The sound heard in an adjoining room should be no more than 57 decibels. The science of sound is that sound is a wave with the magnitude of the sound measured as pressure (P). The formula for the decibel scale is 20*log(P/P_ref) where P_ref = 20 µPa. One µPa is equal to 10^-6 Pa.

a. What is the P of 88 decibels in pascals?    

b. What is the P of 57 decibels in pascals?     

For this problem, sound attenuation rating of material is measured by the fraction of sound pressure that penetrates through a layer of material thickness. A material rated as 0.75 per inch means the sound intensity pressure after passing through an inch of material is 75 percent of the starting value. Sound attenuation based on this measure is geometric so if there was 2 inches of material the resultant sound pressure intensity would be the rating squared or 0.75² of the starting pressure. When sizing the thickness to meet a specified sound reduction the practice is to round up to the next quarter of inch (0.25 inch) unit. If the calculated needed thickness was 1.64 inches the rounded up dimension would be 1.75 inches and all calculations and design sizing would use that dimension. Use the data on the materials located below to answer the questions.

c. What is the design thickness of Material A is required to meet the specification?   

d. What is the design thickness of Material B?

e. What is the design thickness of Material C?   

f. What is the cost per square foot of wall based on the thickness calculated above using the material that is the most expensive to install in a wall to meet the specification?   

g. What is the cost per square foot of wall based on the thickness calculated above using the material that is the least expensive to install in a wall to meet the specification?

Sound attenuation is an important in fabricating walls between rooms in luxury hotels. Three wall cavity fillers have been identified for use. The desired reduction in sound is based on the decibel level heard on the opposite side of a wall from the side where the sound intensity is at 88 decibels using the A weighting method. The sound heard in an adjoining room should be no more than 57 decibels. The science of sound is that sound is a wave with the magnitude of the sound measured as pressure (P). The formula for the decibel scale is 20*log(P/P_ref) where P_ref = 20 µPa. One µPa is equal to 10^-6 Pa.

a. What is the P of 88 decibels in pascals?    

b. What is the P of 57 decibels in pascals?     

For this problem, sound attenuation rating of material is measured by the fraction of sound pressure that penetrates through a layer of material thickness. A material rated as 0.75 per inch means the sound intensity pressure after passing through an inch of material is 75 percent of the starting value. Sound attenuation based on this measure is geometric so if there was 2 inches of material the resultant sound pressure intensity would be the rating squared or 0.75² of the starting pressure. When sizing the thickness to meet a specified sound reduction the practice is to round up to the next quarter of inch (0.25 inch) unit. If the calculated needed thickness was 1.64 inches the rounded up dimension would be 1.75 inches and all calculations and design sizing would use that dimension. Use the data on the materials located below to answer the questions.

c. What is the design thickness of Material A is required to meet the specification?   

d. What is the design thickness of Material B?

e. What is the design thickness of Material C?   

f. What is the cost per square foot of wall based on the thickness calculated above using the material that is the most expensive to install in a wall to meet the specification?   

g. What is the cost per square foot of wall based on the thickness calculated above using the material that is the least expensive to install in a wall to meet the specification?