Why does this model of a phospholipids bilayer in Fig. 1 not 'work'? 
Definitions:
Management By Objectives (MBO)
A management strategy focusing on aligning the goals of employees with the objectives of the organization through participative goal setting and performance assessment.
Budget Adjustments
Modifications made to a budget to reflect changes in the availability of funds or expenditures.
PERT Times
An abbreviation for Program Evaluation and Review Technique, specifically referring to the estimated durations for tasks involved in project planning.
Optimistic
Having a positive or hopeful outlook on situations, believing that the most favorable outcomes are likely to occur.
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