Explain about all researches made about covid 19 virus

Describe about bogue compounds in concrete... Explain about cement hydration

2. M&M’s are delicious. “They melt in your mouth, not in your hand.” According to the M&M’s company, their most popular color is blue.

(a) You open regular pack of M&M’s find that 14 of the 80 candies are red. Construct and interpret a 95% confidence interval for the proportion of red M$M’s candies.

(b) N&N’s is another candy company selling candy coated chocolates. Their slogan is “They melt where it’s warm, so put them in your mouth.” They are being sued by M$M’s for copyright infringement. In their defense, the N$N’s company claims that their proportion of blue candies is much larger than 24% (the proportion for blue M$M’s). As an expert witness, you pick a random sample of N&N’s candies and found 71 out of 240 were blue. Does this provide statistically significant evidence for N&N’s claim?

This question has already been answered, but there was not as much detail as i needed to understand what exactly to do and i need to understand it quick... could you please walk me through how to do this, but specifically A and B please plug in all numbers and state where they came from , thank you so much!

Calculate the potential in the following cell

Pb|Pb2+(1.00M)|| Ag+(1.00M) |Ag

a. right at the beginning when you start using this voltaic cell,

b. when 50% of the Ag+ ions have been consumed,

c. when 99% of the Ag+ ions have been consumed, and

d. when 99.99% of the Ag+ ions have been consumed. Keep in mind that both, the Pb2+ and the Ag+ concentrations are changing.

PERCEPTION AND SENSATION

-Debate why many focus on perception as a tool for action and survival instead of focusing only on perception as a tool for developing mental representations.

-Discuss the ways in which ability and expectations can affect perception.

-Discuss the major functions of motion perception and the ways in which we can perceive motion.

-Describe real and apparent motion, what the aperture problem is, and how the visual system “solves” this problem.

-Detail how lesioning, transcranial magnetic stimulation and microstimulation have been used to study how neurons signal motion.

-State the major principles of the corollary discharge theory of motion perception, and summarize the behavioral and physiological support for the theory.

-Discuss behavioral and physiological research on implied motion, and relate this to the concept of representational momentum.

-Discuss developmental research on motion preference in newborn babies.

In lab, aspirin was made from salicylic acid through a process of heating water to 85 degrees celcius, recrylstalize doing a vacuum filtrtion apparatus with both cooled and warm filtration. After heating in an oven for one hour and letting cool. The mass signficatnly decreased after heating to be about .0129 grams aspirin- the starting SA was 1.4460 why was there such a decrease? The melting point was tested using a melting point capillary with a Mel-Temp apparatus. The melting point that was found was a range from 150-155degrees celcius which is not the same as the melting point of asprin. What could be a potential cause for this error? The asprin also failed the indicator test with the cresol red comparing the SA to the ASA which both turned purple. What is a cause for these results?

when you see dark red bleeding and few clots in the catheter after TURP. what should the nurse do first

Quick Revision of basic ideas about strings – 695-701.

Do this via strategic questions of the students

Use set 5.1 StringSorts slides 1-16.

Again if the lecturer has a computer in the lectern, it would be helpful to go through some of the code snippets throughout this lecture.

Go through 51DemoKeyIndexed Counting slides 1-19 – preferably by having the students act it out as before in conjunction with slides 17-21 of 5.1 StringSorts.

Try to cover at least LSD and MSD sorts and 3-way radix sort. Slides 22-57 of 5.1 StringSorts.

Could skip section on suffix arrays slides 58-73 of 5.1 StringSorts.

Slides 74-89 are missing.

Discuss Slide 90

Homework Exercises

1. Why are StringSorts stable?
2. Why are StringSorts efficient compared with other types of sorts?
3. Are there times when StringSorts are not efficient? If yes, when and why does this occur?
4. If the answer to 3 is yes, what, if anything, can be done to make the sort more efficient?

A microelectrode delivers a current pulse that depolarizes the presynaptic terminal above threshold. Describe the events that occur (in molecular detail) immediately after depolarization. Your answer should finish with the response of the postsynaptic neuron. The presynaptic neuron releases ACh and the postsynaptic neuron has ionotropic AChR.

what channels are activated in terminal?

what currents flows through the membrane? What direction? Why?

what are all the proteins involved in the release of ACh vesicles?

mechanism?

Listed below are lead concentrations (in ug/g) as measured in herbal medicines commonly available over the counter in the US. The FDA lead standard is 14 ug/g for such medicines. Use the P-value method at a 0.05 significance level to test the claim that the mean lead level for all such herbal medicines is less than the FDA standard. 3.0 6.5 6.0 5.5 20.5 7.5 12.0 20.5 11.5 17.5 Address the following questions:

Is this a left tailed, right tailed or two tailed test?

What is alpha?

Are their any conditions that must be met before you can solve this problem?

What is the null and alternative hypothesis and where is the claim?

What formula did you use and what is the test statistic?

What is your decision and what P-Value did you use?

In simple terms, state the final conclusion that addresses the original claim.