Several years ago, an extract from kidney beans was sold in health-food stores as a "starch blocker." Advertisements claimed that one could eat a plate of spaghetti, yet absorb none of it, because starch-digesting enzyme function would be blocked. The kidney bean product indeed kept salivary amylase from functioning. However, people who took the starch blocker developed abdominal pain, bloating, and gas. Suggest a reason for these ill effects.

Why might a person with inflammation of the gallbladder (cholecystitis) also develop inflammation of the pancreas (pancreatitis)?

What effect is a before-dinner alcoholic cocktail likely to have on digestion? Why are such beverages inadvisable for people with ulcers?

Why does the blood sugar concentration of a person whose diet is low in carbohydrates remain stable?

How would removal of 95% of the stomach (subtotal gastrectomy) to treat severe ulcers or cancer affect digestion and absorption? How would the patients have to alter their eating habits? Why? Do you think that people should have this type of surgery to treat life-threatening obesity ?

Refer to a 5-m ladder sliding down a wall. The variable h is the height of the ladder's top at time t, and x is the distance from the wall to the ladder's bottom. Suppose that h(0) = 4 and the top slides down the wall at a rate of 1.2 m/s. Calculate x and dx/dt at t = 2 s.

¿Hecho o opinion? Nuestras percepciones sobre nosotros mismos y sobre los otros se basan en hechos y opiniones. Estudia las caracteristicas de los hechos y las opiniones que se muestran en las siguintes lineas. Luego, trabaja con tres o cuatro companeros para buscar en la lectura fragmentos que ejemplifiquen cada una de esas caracteristicas.

Use De Moivre's theorem to find each power. Give answers in x+yi form.

$$( 1 - i ) ^ { 7 }$$

Factor the trinomial. 3x²+x-2

Suppose 75% of all drivers always wear their seatbelts. Let’s investigate how many of the drivers might be belted among five cars waiting at a traffic light. a) Describe how you would simulate the number of seatbelt-wearing drivers among the five cars. b) Run at least 30 trials. c) Based on your simulation, estimate the probabilities there are no belted drivers, exactly one, two, etc. d) Find the actual probability model. e) Compare the distribution of outcomes in your simulation to the probability model.

Tell which measure is greater. Six feet or two meters

A company offers a starting salary of $31,500 with raises of$2300 per year. Find the total salary over a ten-year period.

This problem indicates why we can impose only $n$ initial conditions on a solution of an $n$th-order linear differential equation. (a) Given the equation

$$y ^ { \prime \prime } + p y ^ { \prime } + q y = 0$$

explain why the value of $y ^ { \prime \prime } ( a )$ is determined by the values of $y(a)$ and $y ^ { \prime } ( a )$. (b) Prove that the equation

$$y ^ { \prime \prime } - 2 y ^ { \prime } - 5 y = 0$$

has a solution satisfying the conditions

$$y ( 0 ) = 1 , \quad y ^ { \prime } ( 0 ) = 0 , \quad \text { and } \quad y ^ { \prime \prime } ( 0 ) = C$$

if and only if $C = 5$.

A defibrillator is used to restart a person's heart after it stops beating. Energy is delivered to the heart by discharging a capacitor through the body tissues near the heart. If the capacitance of the defibrillator is 9 $\mu \mathrm { F }$ and the energy delivered is to be 300 J, to what potential difference must the capacitor be charged?