The ministry said "light quantities of ash" dropped on Paso de Cortes, a Mexico state community at the foot of the volcano, and the towns of Atlixco and Huejotzingo in the state of Puebla, some 23 kilometers away.
Regarding the four PCR-negative reference assay-positive specimens, cultures of the flocked swab liquid media, from which the DNA was extracted for PCR, grew GAS in very light quantities in 3 specimens and was GAS culture-negative from the fourth specimen.
Special meters can measure flash light quantity on a scene during a test firing of flashes; these are used extensively with more elaborate studio setups.
The way in which vowels developed in prehistoric Latin suggests the possibility of a stress accent on the first syllable of each word; in later times, however, the accent fell on the penultimate syllable or, when this had "light" quantity, on the antepenultimate.
Light quantity, quality and duration are known to control morphogenesis, growth and differentiation of plant cells, tissues and organ cultures (Moshe and Dalia 2007).
Senescence during grain filling was related to the local light quantity perceived by leaves and to N availability for actively growing kernels.
In lab scale experiment with small volume of culture and short light path, incident light intensity is commonly used as the light quantity parameter to determine the optimum condition (Wahidin et al. 2013; Teo et al. 2014b).
For many camera applications, the CRF can be expressed as, where represents the light quantity given in base-2 logarithmic units (called stops) and and are parameters used to control the shape of the curve [1].
So, an alternative method which is suitable for up-scale PBR is necessary, while at the same time there must be consideration for practical light quantity in high volume cultivation.
Although vertical migration of phytoplankton triggered by light (and others such as gravity, magnetic field, chemical gradients, etc). is a long-known phenomenon, there are few studies on the effects of the varying underwater light quantity and quality on phytoplankton movement [23, 35, 40].
Physiological experiments showed that phytochromes not only detect light quality but also operate as light quantity sensors [40].
