focus

Examples of focus in the following topics:

• Eccentricity

  • Recall that hyperbolas and non-circular ellipses have two foci and two associated directrices, while parabolas have one focus and one directrix.
  • In the next figure, each type of conic section is graphed with a focus and directrix.
  • The orange lines denote the distance between the focus and points on the conic section, as well as the distance between the same points and the directrix.
  • In other words, the distance between a point on a conic section and its focus is less than the distance between that point and the nearest directrix.
  • This indicates that the distance between a point on a conic section the nearest directrix is less than the distance between that point and the focus.

• Single-Issue Interest Groups

  • Single-issue interest groups focus on advocacy around a single defining issue.
  • As the name suggests, these are groups that focus all of their energy on a single defining issue.
  • These groups focus on a diverse array of issues including abortion, taxation, and animal rights.
  • Because of their singular focus these groups are known for the intensity of their lobbying.

• Conics in Polar Coordinates

  • Previously, we learned how a parabola is defined by the focus (a fixed point) and the directrix (a fixed line).
  • We can define any conic in the polar coordinate system in terms of a fixed point, the focus $P(r,θ)$ at the pole, and a line, the directrix, which is perpendicular to the polar axis.
  • For a conic with a focus at the origin, if the directrix is $x=±p$, where $p$ is a positive real number, and the eccentricity is a positive real number $e$, the conic has a polar equation:
  • For a conic with a focus at the origin, if the directrix is $y=±p$, where $p$ is a positive real number, and the eccentricity is a positive real number $e$, the conic has a polar equation:
  • Any conic may be determined by three characteristics: a single focus, a fixed line called the directrix, and the ratio of the distances of each to a point on the graph.  

• Benefits of Strategic Planning: Focus, Action, Control, Coordination, and Time Management

  • Since they have achieved defined goals through the planning process, managers and employees can focus and control their efforts and their resources, follow determined plans of action, coordinate activities between divisions, and use time management to meet specific goals.
  • While there is value in the pursuit of many activities, understanding which ones the organization should focus on to leverage organizational competencies and align with market research requires careful planning and delegation.
  • This is how planning achieves focus.
  • This business plan takes aspects of a business and identifies clear goals for each: e.g., for the technology to move from being weak and non-integrated to enabling workflows, and for the business's focus to transition from being inwardly to outwardly focused.

• Working with Management

  • To promote intrapreneurship and ensure good ideas are implemented, managers and employees should focus on communication and building trust.
  • There are most often higher levels of responsibility, such as a board of directors and those who own the company (shareholders), but they focus on managing the senior management instead of the day-to-day activities of the business.
  • Individual employees may have ideas on how to improve the business based on their narrower focus and their in-depth relationship with clients.
  • However, management is responsible for implementing new ideas and is required to focus on improving the profitability of the business as a whole.
  • Senior management works on a very tight schedule and would prefer to focus only on the most important details of a project or process.

• Aberrations

  • An aberration, or distortion, is a failure of rays to converge at one focus because of limitations or defects in a lens or mirror.
  • An aberration is the failure of rays to converge at one focus because of limitations or defects in a lens or mirror.
  • This aberration happens when the lens fails to focus all the colors on the same convergence point .
  • Spherical aberrations are a form of aberration where rays converging from the outer edges of a lens converge to a focus closer to the lens, and rays closer to the axis focus further.

• The Camera

  • Some cameras have a fixed focus, and only objects of a certain size at a certain distance from the camera will be in focus.
  • Other cameras allow you to manually or automatically adjust the focus. shows a picture taken with a camera with manual focus; this allows the user to determine which objects will be in focus and which will not.

• The Value of Intermediaries

  • Utilizing intermediaries reduces organizational complexity and allows firms to focus on developing a core competency through specialization.
  • Organizations use intermediaries in order to allow themselves to focus on their core competency and/or competitive advantages.
  • The rest are value-adding intermediaries who limit your risk and allow you to focus on what you do best.
  • Specialization and Focus - As discussed above, often one of the primary advantages of utilizing intermediaries is the ability to increase focus on a business' core products and core competency.

• Conic Sections in Polar Coordinates

  • One of the most useful definitions, in that it involves only the plane, is that a conic consists of those points whose distances to some point—called a focus—and some line—called a directrix—are in a fixed ratio, called the eccentricity.
  • In the focus-directrix definition of a conic, the circle is a limiting case with eccentricity 0.
  • In polar coordinates, a conic section with one focus at the origin is given by the following equation:

• Confocal Microscopy

  • The key to the confocal approach is the use of spatial filtering techniques to eliminate out-of-focus light from biological samples.
  • The point of illumination is brought to focus in the specimen by the objective lens.
  • The light detected creates an image that is in focus with the original sample.