Sentence examples for approximately three weeks before from inspiring English sources

Streak-seeding is an effective method for producing single crystals, however, crystals suitable for X-ray analysis are obtained only when the crystallization droplets are allowed to equilibrate for a relatively long time (approximately three weeks) before seeding.

In the northern hemisphere, males start groaning approximately three weeks before the first matings take place (late September) and continue until the vast majority of matings have occurred (early November, [34]).

Pre-course questionnaires were posted and e-mailed to each core team member approximately three weeks before each course, with a reminder two weeks later.

Panellists were sent a postal questionnaire approximately three weeks before the formal meeting and asked to return it prior to the meeting.

After about two weeks of continuous feeding, the larva spins a silken, pearl-sized cocoon on the underside of a leaf and remains in the pupal case approximately two weeks before emerging as an adult.

Participants completed a measure of need for closure approximately four weeks before election day.

Each event collection includes these users' tweets from approximately two weeks before the event and one week after the event.

Approximately two weeks before the experiment started the participants received detailed information about the coming experiment together with sleep and wake diaries that were to be filled in the three nights and two days immediately prior to the experimental day.

CEO and co-founder Nick Evans recently posted to Tile's support site that customers will be asked to confirm their shipping address approximately two weeks before their order ships, noting also that early backers should have already received this email.

As a basal dressing, 0.5, 2.3, and 2.2 g each of N, P2O5, and K2O was applied, and 0.4 g of nitrogen per pot was applied as a top dressing approximately two weeks before heading.

These include the robbery of two brothers, the attempted murder of businessman Alexei Pichugin (not the Yukos executive of the same name currently serving jail time), and the murder of Yan Sergunin, former deputy premier of Chechnya, who was killed approximately two weeks before Klebnikov.