extinction coefficient (k) is an important index that shows the rate of light decrease in canopy. net biomass accumulation is linearly related to cummulative light interception. the slope of this relationship is termed radiation use efficiency. a split plot experiment within randomized complete block design with three replications was conducted in april 2001 in sugar beet research station in ka...

Developmental changes in photosynthetic gas exchange were investigated in the mannitol synthesizing plant celery (Apium graveolens L. ;Giant Pascal'). Greenhouse-grown plants had unusually high photosynthetic rates for a C(3) plant, but consistent with field productivity data reported elsewhere for this plant. In most respects, celery exhibited typical C(3) photosynthetic characteristics; light...

Musicians often say that they not only hear but also "feel" music. To explore the contribution of tactile information to "feeling" music, we investigated the degree that auditory and tactile inputs are integrated in humans performing a musical meter-recognition task. Subjects discriminated between two types of sequences, "duple" (march-like rhythms) and "triple" (waltz-like rhythms), presented ...

It has been suggested that desmopressin acetate (DDAVP) administration reduces blood loss after cardiac surgery. We have investigated the effect of DDAVP administration in a double-blind, randomized, prospective trial including 100 patients placed on cardiopulmonary bypass during surgery. Fifty patients received 0.3 micrograms/kg DDAVP and 50 patients received a placebo administered in a 50 ml ...

The supply of high data rates is a major goal of the communication industry. Towards this goal one solution is to use high level modulation combined with powerful coding. We propose a turbo-coded high-level modulation system (16/32/64-QAM) for the downlink that could be used for example in the future evolution of the EGPRS. The evaluation of such a system over the GSM channels is performed thro...

Seedings of Vicia faba were grown for four weeks at two different light intensities (55 and 105 watts per square meter) in a saline (50 millimolar NaCl) and nonsaline nutrient solution. NaCl salinity depressed growth and restricted protein formation, CO(2) assimilation, and especially the incorporation of photosynthates into the lipid fraction. Conversion of photosynthates in leaves was much mo...

OBJECTIVE To compare the various paediatric weight estimation methods (Advanced Pediatric Life Support, Broselow Tape, Argall, and Best Guess) and parental estimate to measured weight. PATIENTS AND METHOD A convenience sample of children aged 1-11 years who presented to the emergency department over a 6 month period were eligible for inclusion. Data collected included height, age, ethnicity, ...