Velocity results obtained emphasize the delicate nature of natural circulation phenomena in terms of flow destabilization, and recirculation penetration length.
The true nature of the circulation of blood was not recognized until the early 17th century, when English physician William Harvey published his findings in Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus (1628; Anatomical Exercise on the Motion of the Heart and Blood in Animals, or simply De Motu Cordis).
However, the ephemeral nature of hydrothermal circulation within the Bransfield Strait [ 45], and repeated glacial-interglacial events affecting the Southern Ocean mean that it may also be plausible for the Antarctic S. contortum population to have undergone a bottleneck (loss of genetic diversity following a population crash) [ 64].
But some advertisers are beginning to ask tougher questions about the nature and quality of circulation.
But Houston may be alone in the extent and nature of its pedestrian circulation system of tunnels and skywalks that become particularly popular on days like Aug. 12, 13 and 14 when temperatures hit 102 and 101, or last Thursday, when Tropical Storm Erin flooded many streets.
This hypothesis states that fetuses exposed to hypoxia due to maternal diabetes or smoking show reduced tibia length, but not reduced total upper limb or femur lengths, due to the nature of the fetal circulation and the diminution of blood oxygen availability with distance from the placenta, reaching its lowest levels in the distal lower limb (tibia).
These temporal dynamics may explain the apparent sporadic nature of leptospirosis outbreaks; the circulation of pathogenic Leptospira spp. may cause typical and easily recognizable disease, whereas the circulation of intermediate species may cause a generally milder disease with a broad spectrum of symptoms, which makes the disease prone to misdiagnosis.
In the North Atlantic Ocean, the SST is warmer than other regions in similar latitudes, reflecting the well-resolved nature of the Atlantic meridional circulation.
These rivers have a strong influence on the aquatic environment in varying degrees and time sequence, water quality, circulation, nature of bottom and the inhabitants of that environment (Banglapedia 2004).
The low SFTSV prevalence in ticks suggests that ticks alone may not be sufficient to maintain SFTSV in nature; circulation of SFTSV between the tick vector and mammalian amplifying hosts may be required for SFTSV maintenance in nature.
