1. name at least four mechanisms that may hold a hydrogel together without covalent bonds? In other words, physical crosslinking?

2. provide 2 examples on how pH sensitive polymers/hydrogels may be useful in biomedical field?

Please provide detain explanation how pH changed in human body and how the polymer in response to such change?

3. Why do think we need to incorporate cell instructive peptide (such as RGD) into PEG hydrogel

4. What are the two major degradable strategy in hydrogel?

What are the chemical components of normal enzymatic degradable crosslinker? Do you know why?

From driverless cars to a workplace staffed by robots, automation has the potential to reshape many facets of American life. The large majority of Americans (87%) would favor a requirement that all driverless vehicles have a human in the driver's seat who can take control of the vehicle in the event of an emergency, while 56% of U.S. adults say that they would not ride in a driverless vehicle.† If these figures are correct, what is the probability that in a sample of n = 100 U.S. adults, the sample proportion p̂ of adults who would not ride in a driverless vehicle falls between 54% and 64%? (Round your answer to four decimal places.)

1. what are two features of the female pelvis assist in the baby's passage during childbirth?

2. What are some secondary sexual characteristics in human males? Describe at least three.

3.

Case Study: Polycystic Ovarian Syndrome (PCOS) and Fertility

1) What are some symptoms of PCOS?

2) The exact cause of PCOS is still unknown. What are some suspected causes, and how do they relate to some of the symptoms?

3) PCOS is the leading cause of infertility in women. At which stage is follicle development stopped? What are some treatment plans that may help a woman with PCOS who wishes to conceive?

Scenario: Consider your last big purchase such as a car, appliances, home repairs, home purchase, computer equipment, college tuition, or another "big-ticket" item, which are often purchased using loans/financing (by borrowing money). Also consider the decision-making process that led you to choose a particular make, model, or brand of the product (or service) you purchased and whether it was the right time to make the purchase given economic conditions at the time of your purchase. While analyzing your decision, keep in mind everything from interest rates to the prices of complementary and substitute goods are driven by human economic behavior.

2. Which of the following, regarding the melanocyte, is false?

a) like all cells in the epidermis, it adjoins neighboring keratinocytes directly by desmosomal

connections – this ensures all elements of the skin resist tension maximally

b) both eumelanin and pheomelanin made by melanocytes undergo fast internal conversion of photoninduced

excitation to heat energy

c) melanosomes made by melanocytes are assembled along the exterior-facing surface of keratinocyte

nuclei

d) the ration of melanocyte to keratinocytes is roughly 1 to 36 for majority of the skin surface in

humans

e) relative melanocyte activation and the relative melanin subtype concentrations largely account of

the astonishing diversity of human skin coloration

1. Which of the following sets of hormones are antagonists?

   1. Calcitonin and parathyroid hormone

   2. Glucagon and insulin

   3. GHRH and GHIH

   4. All of the above

   5. None of the above

2. The primary effect of calcitonin is to

   1. Increase blood glucose

   2. Decrease blood glucose

   3. Increase blood calcium

   4. Decrease blood calcium

   5. Regulate metabolism

3. The “master endocrine gland” is the ___

   1. Thyroid

   2. Pituitary

   3. Adrenal

   4. Parathyroid

   5. pineal

4. ___ are attached to transport proteins within the bloodstream.

   1. ​​​​​​​Releasing hormones

   2. Pancreatic hormones

   3. Water-soluble hormones

   4. Lipid-soluble hormones

   5. All of the above

5. Pitocin is the synthetic form of ___ used to induce labor by stimulating uterine contractions.

   1. ​​​​​​​ Estrogen

   2. Progesterone

   3. Prolactin

   4. Oxytocin

   5. Human chorionic gonadotropin

From the list of 100 you may select one of the following:

· Henry Louis (“Lou”) Gehrig’s “Farewell to Baseball Address”

· Anna Eleanor Roosevelt’s “The Struggle for Human Rights” speech

· John F. Kennedy’s “Inaugural Address”

· Martin Luther King Jr.’s “I Have a Dream” speech

· Mary Fisher’s “A whisper of AIDS” speech

When creating your outline, be sure to identify the following:

The thesis statement

The main topics

The sub-topics

The sub-sub topics

Within your sub-topics, identify one direct quotation. Be sure to properly cite the quotation within the outline as well as create a reference page

C# please!

A friend wants you to start writing a video game. Write a class called “Player” that includes the location of the player, her/his current score, and the ancestry of the player (e.g. “Elf”, “Goblin”, “Giant”, “Human”). A player will always start at location (0, 0) and have a score of 0. Always.

Write accessors/modifiers (or “setters/getters”) for each of those characteristics.

Write an “appropriate” constructor for the class (based on what’s described above).

Write methods moveNorth(), moveSouth(), moveEast() and moveWest() that increment/decrement the x and y position of the player, respectively.

Write a method called addToScore() that takes in an integer and adds it to the players score.

Lab was done on bromination of acetanilide, aniline, anisole.

One of three compound was dissolved in glacial acetic acid. Bromine/hydrobromic acid mixture was added and continue to stir for 20minutes (for anisole heat the reaciton at 80C for 40minutes)

afther 20 minutes, trasnfer the mixture to a flask containing water and satuarted sodium bisulife solution. Place it in ice bath and let it crystalize. Do recrystalizaiton.

1. If the yield was low, explain the reason for the low yield (NOT including human error)

2. When identification of the product based on melting point and NMR differs, why they might differ and which technique you have more confidence in.

Statistical Error: Regression to the mean

Definition: In any event where luck or chance is involved, extreme outcomes are followed by more moderate ones.

1. Provide a Human Resource decision that has to be made as an example to regression to the mean.

2. Errors typically occur because the data used to make the decision is flawed in some way. What flawed data could lead to the error for this decision?

3. Think about what data could be used instead (to avoid the error: regression to the mean)?

4. What parameter or statistic will you use to represent the dataset?

5. How could this help avoid the error?