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Related Concept Videos

Unsoundness of Aggregate due to Volume Change01:26

Unsoundness of Aggregate due to Volume Change

Unsoundness in aggregates due to volume changes is primarily caused by the physical alterations aggregates undergo, such as freezing and thawing, thermal changes, and wetting and drying. Unsound aggregates, when subjected to these changes, result in volume change upon disintegration. This, in turn, contributes to the deterioration of concrete, including scaling, pop-outs, and cracking. Particular types of aggregates, such as porous flints, cherts, and those containing clay minerals, are...
Dynamic Equilibrium02:20

Dynamic Equilibrium

A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
Conditions of Equilibrium01:28

Conditions of Equilibrium

Equilibrium refers to a state where a rigid body is not subjected to any translational or rotational motion. This state is achieved when the force and couple acting on a rigid body equal zero. When the system of external forces results in a net effect equivalent to zero, the rigid body is considered to be in equilibrium.
Internal forces are not considered for conditions of equilibrium because they occur in equal and opposite pairs within the body, effectively canceling each other. As a result,...
First Derivative Test: Problem Solving01:25

First Derivative Test: Problem Solving

Imagine an asset price that crashes to a low point, rebounds sharply as bargain-hunters step in, and then gradually declines. Such behavior can be modeled with a smooth function whose turning points represent locally overvalued and undervalued regions. A convenient example that captures rebound followed by decay is:The high and low points of this curve are identified using the first derivative test, which determines where the function changes from increasing to decreasing or vice versa. To...
Stability01:28

Stability

The time response of a linear time-invariant (LTI) system can be divided into transient and steady-state responses. The transient response represents the system's initial reaction to a change in input and diminishes to zero over time. In contrast, the steady-state response is the behavior that persists after the transient effects have faded.
The stability of an LTI system is determined by the roots of its characteristic equation, known as poles. A system is stable if it produces a bounded...
Stability of Equilibrium Configuration01:23

Stability of Equilibrium Configuration

Understanding the stability of equilibrium configurations is a fundamental part of mechanical engineering. In any system, there are three distinct types of equilibrium: stable, neutral, and unstable.
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...

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Assessing the First DataBank settlement: dramatic shake-up or status quo?

Joshua Golden1

  • 1Hewitt Associates.

Benefits Quarterly
|December 4, 2008
PubMed
Summary

First DataBank (FDB) allegedly inflated prescription drug prices, costing consumers billions. A tentative settlement was reached in 2006, but court approval is pending.

Area of Science:

  • Health Economics
  • Pharmaceutical Policy
  • Legal Settlements

Background:

  • First DataBank (FDB) is a major publisher of average wholesale price (AWP) data for prescription drugs.
  • AWP data significantly influences drug pricing throughout the U.S. distribution system.

Purpose of the Study:

  • To report on the tentative legal settlement involving First DataBank (FDB).
  • To outline allegations of questionable activities by FDB impacting drug costs.

Main Methods:

  • Analysis of allegations concerning FDB's pricing practices.
  • Review of the terms of a tentative legal settlement.

Main Results:

  • FDB faced allegations of activities that resulted in an estimated $7 billion in overcharges.

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  • The alleged overcharges occurred between August 2001 and March 2005.
  • A tentative legal settlement was agreed upon in 2006.
  • Conclusions:

    • The proposed settlement addresses significant financial impact on consumers and payers.
    • Final court approval is required for the settlement details to be enacted.