how long does it take for the ogallala aquifer to recharge
over 6,000 years
title: Orthognathic surgery text: attachment so the surgeon may use a hex-like screw to place into the device to push from anterior to posterior to start spreading the bony segments. The expansion of the maxilla may take up to 8 weeks with the surgeon advancing the expander hex lock, sideways (← →), once a week. After orthognathic surgery, patients are often required to adhere to an all-liquid diet for a time. Weight loss due to lack of appetite and the liquid diet is common. Normal recovery time can range from a few weeks for minor surgery, to up to a year for more complicated title: Anterior cruciate ligament reconstruction text: can begin. This usually consists of careful exercises to regain flexibility and small amounts of strength. One of the more important benchmarks in recovery is the twelve weeks post-surgery period. After this, the patient can typically begin a more aggressive regimen of exercises involving stress on the knee, and increasing resistance. Jogging may be incorporated as well. After four months, more intense activities such as running are possible without risk. After five months, light ball work may commence as the ligament is nearly regenerated. After six months, the reconstructed ACL is generally at full strength (ligament tissue has fully regrown), title: Dromedary text: lactation period can vary between nine and eighteen months. Dromedaries are induced ovulators. Oestrus may be cued by the nutritional status of the camel and the daylength. If mating does not occur, the follicle, which grows during oestrus, usually regresses within a few days. In one study, 35 complete oestrous cycles were observed in five nonpregnant females over 15 months. The cycles were about 28 days long; follicles matured in six days, maintained their size for 13 days, and returned to their original size in eight days. In another study, ovulation could be best induced when the follicle reaches a title: Ogallala Aquifer text: decades ago. Still, losses to the aquifer between 2001 and 2011 equated to a third of its cumulative depletion during the entire 20th century. The Ogallala is recharged primarily by rainwater, but only about one inch of precipitation actually reaches the aquifer annually. Rainfall in most of the Texas High Plains is minimal, evaporation is high, and infiltration rates are slow. In 2008, TransCanada Corporation proposed the construction of the Keystone XL pipeline to carry oil from the Athabasca oil sands of Alberta to refineries near Houston, Texas. The proposed route of the pipeline crosses the eastern part of the title: Egg donation text: tests and ultrasound exams to determine the donor's reaction to the hormones and the progress of follicle growth. Once the doctor decides the follicles are mature, he/she will establish the date and time for the egg retrieval procedure. Approximately 36 hours before retrieval, the donor must administer one last injection of HCG hormone to ensure that her eggs are ready to be harvested. The egg retrieval itself is a minimally invasive surgical procedure lasting 20–30 minutes, performed under sedation (but sometimes without any). A small ultrasound-guided needle is inserted through the vagina to aspirate the follicles in both ovaries, which