water and nutrient absorption by plants is one of the most conspicuous factors which seriously affect plant productivity. improving physical properties of soilless media and their water retaining capacity can improve plant's nutrient absorption, growth and subsequent yield. in this study, we tried to improve plant nutrient absorption through incorporation of hydrogel into growth media and ...

We propose here a large homogeneous calorimeter as the next generation neutrino detector for ν factories and/or conventional ν beams. The active media is chosen to be water for obvious economical reasons. The Čerenkov light produced in water is sufficient to have good energy resolution, and the pattern recognition is realized by a modular water tank structure. Monte Carlo simulations demonstrat...

three media formulated from molasses and cornsteep liquor and another media based on the basal medium formulation of ips-82 were assessed for the growth and production of insecticidal properties of b. thuringiensis h-14 .• bacterial powders prepared from the broth cultures were assayed against the larvae of culex pipiens and anopheles stephensi. a standard powder of ips-82 was included in the a...

MEMS ultrasonic transducers are potentially valuable in both medical and non-destructive testing applications. A prime advantage of these transducers is their wide bandwidth together with the potential for economical fabrication of detector arrays. In this paper, we discuss issues related to the coupling of these transducers to solid and liquid media. We will show that appropriate choice of the...

A number n is said to be economical if the prime power factori-sation of n can be written with no more digits than n itself. We show that under a plausible hypothesis, related to the twin prime conjecture, there are arbitrarily long sequences of consecutive economial numbers, and exhibit such a sequence of length 9.

the potential of bulk starter fermentation strategy for production of a cost-effective and safe source of β-galactosidase was investigated. three different bulk starter media with different compositions were selected, and an industrial yogurt starter culture strain, l. bulgaricus dsm 20081 was cultivated in these media under ph-controlled conditions (ph=5.6) at 43°c. the media consisted of 1) b...

Aloe plants can be grown autotrophically in a maintenance-free, sterile, ex vitro environment. Excel, 15-5-15 plus minors fertilizer formulation and Plant Preservative Medium (PPM) biocide was used as a very economical basal medium. In vitro micropropagated plantlets were regenerated in Excel media with 2 g /L sucrose and 2.2 μM 6-Benzylamino purine (BA) and used to initiate ex vitro cultures i...

A rapid, sensitive, and reproducible pre-column derivatisation procedure has been established for the simultaneous determination of 20 amino acids by high-performance liquid chromatography using fluorescence detection. The amino acids were derivatized using o-phthalaldehyde and 9-fluorenylmethyl-chloroformate reagents. The optimal conditions for simultaneous separation and detection of both pri...