100X objective lens is used with:

Sunyi is a behavior analyst currently working for a drug company that wants to test the efficacy of a new experimental drug to reduce patients’ harmful stereotypy. The company researchers are looking to determine appropriate dosages and want to administer several different doses of the drug to see which dosage is most effective at reducing harmful stereotypy. Which analysis would be the best for the behavior analyst to use?

Harris is a behavior analyst working with a young adult in a group home where the staff-to-resident ratio is typically one staff member to three residents. Han has just moved into the group home and is displaying three different behaviors that appear to be maintained by attention.  Harris has his staff members collect continuous baseline data on the behavior with the most severe topography and collect intermittent baseline data on the other two behaviors. If the intervention effectively changes the severe behavior, Harris plans to begin continuous baseline data collection on the second target behavior while continuing intermittent baseline data collection on the third target behavior. Which experimental design would be most appropriate for Harris to use?

Petra wants to achieve a healthy weight and lifestyle. Since Petra works from home, she wants to buy an indoor exercise bicycle. For the first week, Petra plans to ride the bike for 15 minutes each day. For the second week, she will increase her riding time to 20 minutes per day. She will continue to increase the time spent on the bike for 5 minutes longer each week until she meets her goal weight. Given this scenario, which of the following is a short-term objective?

A short column is loaded in compression. Segment (1) has a solid cross section with a diameter of 1.00 in. Segment (2) is hollow with an outside diameter of 1.24 in. and a wall thickness of 0.12 in. If segment (2) has a normal stress of 11 ksi, determine the normal stress in segment (1).

Malina wants to improve the performance of the assembly line worker she manages. Currently, the worker produces an average of 500 units per day in baseline. Malina first implements a feedback system where she posts the worker’s daily productivity. Almost immediately after the feedback system’s implementation, productivity increases to an average of 750 units per day. After 2 weeks at this level, Malina implements a pay-for-performance system with bonuses based on productivity rates. This performance system produces an average of 1,000 units per day for the next 2 weeks. Malina continues implementing these interventions in this same order without randomization and sees similar behavior patterns. Later, Malina implements the performance system immediately following the baseline and finds that it is not as effective as it had been during the original testing period. The results of these data are most likely being impacted by which confound?

Select all that apply. Which of the following can serve as a reference for proton NMR?©GMU 2020

What champion of rationalism began with first principles (e.g. “I think, therefore I am”)? 

Who wrote  A Vindication of the Rights of Woman (1792), a founding text of the feminist movement?

A steel rod with a circular cross section is used as a weight hanger. The straight part of the rod is 150-mm long and has a diameter of 5.0 mm. Determine the longitudinal strain in this portion of the rod when it supports a tensile load of 9.8 N.