568 Group

The 568 Group is a consortium of American universities and colleges practicing need-blind admissions. The group was founded in 1998 in response to section 568 of the Improving America's Schools Act of 1994.

History

In response to several prestigious colleges and universities holding "Overlap Meetings" to set similar tuition and financial aid levels, the Justice Department began an antitrust investigation in 1989 and in 1991 filed an Sherman Antitrust Act suit against 57 colleges and universities. While the Ivy League institutions settled, MIT contested the charges on the grounds that the practice was not anticompetitive because it prevented bidding wars over promising students from consuming funds for need-based scholarships and ensured the availability of aid for the greatest number of students. MIT ultimately prevailed when the Justice Department settled the case in 1994.

In 1994, Congress passed the Improving America's Schools Act. Section 568 of this Act that expands upon the issues in the MIT settlement. Section 568 states that is not unlawful under the anti-trust laws for two or more need-blind institutions to agree or attempt to agree:

Group

Group may refer to:

Groups of people

In science and technology

In mathematics

In chemistry

In computing and the internet

Other uses in science and technology

Other uses

Shot grouping

In shooting, a shot grouping, or simply grouping, is the placement of multiple shots on a target, the shots taken in one shooting session. The closeness of the grouping, the nearness of all the shots to each other, is a measure of the accuracy of a weapon, and a measure of the shooter's consistency and skill.

Uses of the term

For firearms that shoot one round at a time, a shot grouping can be used to measure the accuracy of the system comprised out of weapon as well as the precision and uniformity of the ammunition by fixing the weapon into position on a test mount, and aiming it at a target. Multiple shots using rounds from same type and batch are fired to observe how the weapon groups the shots. If a person holds the weapon and shoots it, the grouping measures the combination of the person's skill and the weapon's accuracy.

In shotgun shooting, the grouping is also called the pattern. The pattern is the spread of shot from a single shotgun shell, measured as the smallest circle containing all the shots on the target. The barrel of a shotgun is designed to deliver a wide or narrow grouping, depending on the expected use. Shooting at close range indicates a cylinder bore barrel to deliver a wide grouping, while for hunting at longer distances such as 50 yards or meters, a choke is recommended for a tighter grouping.

Stratigraphic unit

A stratigraphic unit is a volume of rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.

Units must be mappable and distinct from one another, but the contact need not be particularly distinct. For instance, a unit may be defined by terms such as "when the sandstone component exceeds 75%".

Lithostratigraphic units

Sequences of sedimentary and volcanic rocks are subdivided on the basis of their lithology. Going from smaller to larger in scale, the main units recognised are Bed, Member, Formation, Group and Supergroup.

Bed

A bed is a lithologically distinct layer within a member or formation and is the smallest recognisable stratigraphic unit. These are not normally named, but may be in the case of a marker horizon.

Member

A member is a named lithologically distinct part of a formation. Not all formations are subdivided in this way and even where they are recognized, they may only form part of the formation.