Blog

This is a PA chest x-ray. Answer the following questions in paragraph format: What is the CR location for this projection? What are the breathing instructions? What is the positioning error and how did you identify the error? What pathology is present and where can you see this pathology on the x-ray? Is this pathology additive or destructive? What technical factors would you set for this exam? Name 2 ways to identify rotation or tilting on a chest radiograph. 

In Linear Regression, Ordinary Least Squares (OLS) can be considered a closed-form estimation approach that minimizes the sum of squared errors.

The contraction waves by which the digestive tube moves its contents toward the rectum are called

The F-test in ANOVA for equal means compares the between-group variability to the within-group variability. 

What is the correlation coefficient between the response variable, Roll, and the predictor, UNEM?

Based on archaeological evidence from early South Asian history, historians believe that

In a linear regression model without an intercept, we will include 5 dummy variables in the model if we have only 1 predicting variable in the model and that predicting variable is a qualitative variable with 5 categories.

This is a PA chest projection. Which way was the patient leaning?

 A point charge Q with a mass of m = [m] kg is submerged in a uniform electric field pointed vertically downward. Q = -[x] C. If the net force applied on the charge is zero, what is the magnitude of the electric field (unit in N/C)? Gravitational acceleration g = 9.8 m/s2. Note that magnitude is positive.

The external oblique muscle performs: