La dimension très spéculative du marché immobilier peut avoir une influence sur les prix voire être en partie à l'origine d'une crise mondiale comme la crise de 2007, lorsqu'elle aboutit à la constitution d'une bulle immobilière, dont l'importance peut être aussi grande que celle des bulles financières et dans certains cas se conjuguer avec une bulle financière ou dans d'autre cas être cause d'un krach financier international.
The genus Centris contains circa 250 species of large apid bees occurring in the Neotropical and Nearctic regions, from Kansas to Argentina. Most females of these bees possess adaptations for carrying floral oils rather than (or in addition to) pollen or nectar. They visit mainly plants of the family Malpighiaceae to collect oil, but also Plantaginaceae, Calceolariaceae, Krameriaceae and others. Recent studies have shown they are sister to the corbiculate bees, the most well-known and economically important group of bees [1]
Centris pallida are able to withstand very high internal temperatures when compared to other bees. Males regularly have thoracic temperatures of 48 to 49 degrees Celsius (118.4 to 120.2 degrees Fahrenheit). If the thoracic temperature reaches 51 to 52 degrees Celsius (123.8 to 125.6 degrees Fahrenheit), the bee will become paralyzed and die. Most of the cooling occurs when heat radiates off the abdomen. To prevent overheating, C. pallida have a very high thoracic conductance (rate of heat transfer from the thorax to the abdomen) which is 45 percent higher than that of sphinx moths of the same size. Other than this high thoracic conductance, no other mechanism has been found to help the bee reduce its internal temperature. C. pallida do not appear to have evaporative cooling in the wild as honey bees and bumblebees do.[10]
The two categories of behavior for C. pallida males are patrolling and hovering. These strategies are also used to find mates. In one category (the patrollers), male bees will patrol 3–6 centimeters above the ground in search of sites where buried virgin females will emerge. When a male bee finds such a site, he will dig 1–2 centimeters through the soil by gnawing at the surface with his jaws and using his forelegs to remove dirt from the excavation. If a female is found, he will attempt to mate with her either on the surface or at a nearby flower or tree. Other patrollers will sometimes attempt to steal a digging spot that another bee has found. If a bee has already found a female, another patroller bee may separate the male from the female so that it can copulate with the virgin. More often than not, the female (once found) will mate with either the male that found her or with an intruder.[6]

The Centris 610 and 650 were replaced about six months after their introduction by the Quadra 610 and 650 models, which kept the same case and designs but raised the CPU speeds from 20 MHz and 25 MHz to 25 MHz and 33 MHz respectively; while the Centris 660AV was renamed to Quadra 660AV without any actual design change. These Macs also existed during Apple's transition from auto-inject floppy drives to manual-inject drives.[4] This is why there are two different styles of floppy drive bezel (faceplate) on these models. Some later Centris 660AV Macs have manual-inject floppy drives, so this change was not exactly concurrent with the name change.
Ceux qui préfèrent un environnement tranquille se plairont à Québec. On peut trouver un parc à une certaine distance de la majorité des maisons et les résidents peuvent compter sur la présence de quelques centaines d'espaces verts publics, comme par exemple la Base de plein air de Sainte-Foy et le Parc des Champs-de-Bataille, ce qui fait qu'ils sont faciles d'accès. La ville plaira également à ceux qui préfèrent les environnements silencieux, étant donné qu'il y a peu de bruit lié à la circulation automobile - même si plusieurs secteurs de la ville sont plus bruyants, comme par exemple près de l'une des 3 voies ferrées, de l'Autoroute Félix-Leclerc, de l'Autoroute Henri-IV ou de l'aéroport (YQB).  Quebec - Lire davantage à propos des propriétés à vendre dans cette région