1.   Try to increase your attention span and extend the length of time over which you can work effectively.

2.   An inner curtain of aqua-colored netting covers a plate-glass wall extending the length of the second-floor living room.

3.   Artificial light can be used to extend day length.

4.   At first, limit the handling to brief moments of success and gradually extend the length of time you can manipulate the paw.

5.   At Keystone, Colo., man-made snow extends the length of the season, and assures the mountain that it will be among the first to open each year.

6.   A proposal to add additional crew time by extending the length of shuttle and Soyuz visits to the station looks mostly like a stopgap measure.

7.   But afterward, Brzezinski and Haig told reporters that the president had left the door open to extending the length of the mission, if necessary.

8.   But, over the years, drug companies have extended the length of time they can have a monopoly over their pharmaceutical creations.

9.   Extend the length of your hike and you can shorten your daily mileage output.

10.   He also extended the length of his keynote speech by an hour, making it a Castro-like two and a half hours.