iii) D. pulex were kept under moderate crowding conditions, causing density-dependent stress, and the number of ephippia and subitaneous neonates was determined for tests with or without addition of melatonin.
The phenomenon of free convection arises in the fluid, when temperature changes cause density variation leading to buoyancy forces acting on the fluid element.
According to the acoustic model, those waves caused density fluctuations in the plasma--fluctuations that now show up as ripples in the microwave background radiation that bombards us from every direction.
Being empty spaces, they cause density reduction that can change the refractive index, electronic defect states[7] and anomalous stress distribution especially if filled with H[12] or if they form Si-H platelets[13].
The cross-links can enhance the thermal coupling between the polymer and CNTs but they also cause density variation in near-interface polymer layers and induce secondary interfacial resistances in the polymer.
The bars, made of dense lines of stars at the galaxies' centers, are thought to form as gravity causes density waves that push gas inward, supplying material for new stars, Hubble mission researchers explained in a statement.
Our recent findings (unpublished data) also find that the taxane-based regimen causes density atrophy in the normal breast.
Increasing DMR at constant nominal MAP increased seedling density in the arid region, whereas increasing DMR generally caused density to decrease in the other regions (Fig. 2D) and did not vary with MAP in the dry Mediterranean region.
Decreasing the solidification rate causes density-induced floatation of the primary particles, which can be used in block-casting for the production of alloys consisting of small and spheroidised eutectic particles, exhibiting high ductility and superior toughness.
Unfortunately, the plans were not carried out completely, and within 30 years the open areas were exploited, causing the density of buildings to triple.
In the first phase of the impact, a rounded crater is formed, and the snow beneath the rock is compressed, causing its density to increase.
