** Minimum level required for POWER4 hardware and the last release that worked on the Micro Channel architecture

** Ecosystems: biodiversity — biome — habitat — plankton — thermocline — carbon cycle — water cycle — nitrogen cycle — food web — trophic level — saprobe — decomposition

** Molecular dynamics, the study of motion on the molecular level

** a direct interaction occurs when one object is on a level exactly one higher or one lower than the other ( i. e., on a tree, the two objects have a line between them )

** Light level reduction of 0 % in low latitudes to 90 % in high smoke injection areas

** Increase circulating level of factors 2, 7, 9, 10, plasminogen

** Surge in estrogen level induces the release of luteinizing hormone, which then triggers ovulation by releasing the egg from the Graafian follicle in the ovary.

** Sex drive is dependent on androgen levels only in the presence of estrogen, but without estrogen, free testosterone level actually decreases sexual desire ( instead of increases sex drive ), as demonstrated for those women who have hypoactive sexual desire disorder, and the sexual desire in these women can be restored by administration of estrogen ( using oral contraceptive ).

** In genomics, as a measure of evolution at the protein level ( also denoted as d < sub > N </ sub >/ d < sub > S </ sub > or K < sub > a </ sub >/ K < sub > s </ sub > ratio ).

**. sa, the country code top level domain ( ccTLD ) for Saudi Arabia

** 429 kn ( 493 mph, 795 km / h ) at sea level

** 3-year further education ( enseignement supérieur de type court ) at bachelor level

** 5-year further education ( enseignement de type long ) at master level ( one or two more years for doctoral training )

** Istituto Professionale: it is a manly vocational school which offers a very specialized formation on a specific field for those looking into entering work ; it is generally organized at local level according to the local economy and industry and based on broad national guidelines ; it offers periods of stage in the local firms as a part of their courses.

** Italian Language and Literature, decided at national level and the same for all examinees: either a text comprehension and critique, or the writing of an essay

** a subject dependent on the kind of school followed, decided at national level for each different path

** Multiple-base transistor, used to amplify very low level signals in noisy environments such as the pickup of a record player or radio front ends.

** was rated level 1 in February 2012.

** Unit of observation, a type of entity ( e. g. person, house, neighborhood ) specifying the level at which data is collected

** Unit of analysis, a type of entity ( e. g. person, house, neighborhood ) specifying the level at which data is analyzed

** Diplomatic relations between the Israeli and the Japanese governments are raised to embassy level.

** A report by the World Meteorological Organization reports an unprecedented level of ozone depletion in both the Arctic and Antarctic.

** The United Kingdom and the People's Republic of China elevate diplomatic exchanges to the ambassadorial level after 22 years.

** Near Guam, Typhoon Tip reaches a record intensity of 870 millibars, the lowest pressure recorded at sea level.

** The Beatles at 11: 30 have photographer Iain Macmillan take their photo on a zebra crossing on Abbey Road.

** The 1, 282 foot ( 390 m ) covered bridge crossing the St. John River at Hartland, New Brunswick, Canada opens.

** War of the First Coalition – Battle of Lodi: General Napoleon Bonaparte defeats Austrian rearguard in forcing a crossing of the bridge over the River Adda in Italy.

** The third hurricane of the season, the first recorded example of a storm crossing from the Eastern Pacific basin into the Atlantic basin, occurred in Oaxaca.

** Gregory Blaxland, William Lawson and William Wentworth succeed in crossing the Blue Mountains and return home.

** The first bridge over the Mississippi River opens in what is now Minneapolis, Minnesota ( a crossing made today by the Father Louis Hennepin Bridge ).

** river crossing puzzles: move a set of pieces across a river using a bridge or boat.

** The average crossing number is a variant of crossing number obtained from a three-dimensional embedding of a knot by averaging over all two-dimensional projections.

** Sherman & Torbert, Transforming Social Inquiry, Transforming Social Action: New paradigms for crossing the theory / practice divide in universities and communities.

** Grade separation, using bridges ( or, less often, tunnels ) freeing movements from having to stop for other crossing movements

** History: Planned in the 1960s and early 1970s, A-9 was to provide a fixed crossing over the Ottawa River.

** This autoroute has the peculiarity of having a railroad crossing at grade in Saint-Hyacinthe, immediately east of the Boulevard Laframboise overpass.

** Description: The A-50 is not yet a completed route ; the first segment, in the East, ends at Route 117 near Mirabel, connects the A-15 and Mirabel Airport to Route 148 at Grenville just west of Lachute, near a bridge over the Ottawa River to Hawkesbury, Ontario -- this section includes an at-grade railway crossing.

** The expressway was officially announced in 1965 to link the Outaouais and the Montréal area without crossing into Ontario, plans were altered several times to reduce the number of farms affected by the road and detoured north to connect to the end of A-13 ( never completed past A-640 ) and to facilitate access from Ottawa-Hull to the planned International Airport at Mirabel ( built and in operation from 1975 until 2004, but currently unused by travelers ).

** Intersystem crossing occurs, resulting in excited triplet protoporphyrin IX ;

** Breitenau ( border crossing )

** Petrovice ( border crossing )

** Dolní Dvořiště ( border crossing )

** Wullowitz ( border crossing )

** Captain Ernest Hoy makes the first aircraft crossing of the Rocky Mountains, from Vancouver to Calgary.

** The Commonwealth Trans-Antarctic Expedition completes ( March 2 ) its three-year mission to make the first overland crossing of Antarctica, via the South Pole.

** Sierra Madre de Chiapas, the continuation of this mountain range crossing southern Guatemala, northern El Salvador, and western Honduras

** Pedestrian crossing distance is reduced across the mainline.