hanced transport has been clearly documented in batch and column studies (Chiou et al., 1986; Dunnivant et The apparent enhanced transport of soil-applied atrazine following al., 1992; Enfield et al., 1989; Hassett and Anderson, irrigation of treated effluents has been hypothesized to be from com1982; Hutchins et al., 1985; Kan and Tomson, 1990; plexation of atrazine with effluent-borne dissolv...

Inactivation of bacteriophage MS2 by reactive oxygen species (ROS) and triplet excited state of dissolved organic matter ((3)DOM*) produced by irradiation of natural and synthetic sensitizers with simulated sunlight of wavelengths greater than 320 nm was investigated. Natural sensitizers included purified DOM isolates obtained from wastewater and river waters, and water samples collected from S...

An accurate, specific and precise UV spectrophotometric method was developed for the simultaneous determination of naproxen (NAP) and domperidone (DOM) in tablet dosage form. The optimum conditions for the analysis of the drug were established. The maximum wavelength (λmax) was found to be 271 nm for NAP and 287 nm for DOM. The linearity of the proposed method was found in the range of 10-35 μg...

The agricultural application of raw animal manure introduces large amounts of dissolved organic matter (DOM) into soil and would increase transport of heavy metals such as Cu which are widely present in animal manure. The purpose of this research was to evaluate the evolution of DOM from pig and cattle manures during composting through excitation-emission matrix (EEM) fluorescence spectroscopy ...

Production of dissolved organic matter (DOM) by marine phytoplankton supplies the majority of organic substrate consumed by heterotrophic bacterioplankton in the sea. This production and subsequent consumption converts a vast quantity of carbon, nitrogen, and phosphorus between organic and inorganic forms, directly impacting global cycles of these biologically important elements. Details regard...

Dissolved organic matter (DOM) strongly affects water quality within boreal forest ecosystems. However, how the quality of DOM itself changes spatially is not well understood. In this study, to examine how the diversity of DOM molecules varies in water moving through a boreal forest, the number of DOM molecules in different water samples, i.e., rainwater, throughfall, soil water, groundwater, a...

Optical properties are easy-to-measure proxies for dissolved organic matter (DOM) composition, source, and reactivity. However, the molecular signature of DOM associated with such optical parameters remains poorly defined. The Florida coastal Everglades is a subtropical wetland with diverse vegetation (e.g., sawgrass prairies, mangrove forests, seagrass meadows) and DOM sources (e.g., terrestri...

The MCU subsystem of the IceCube DAQ is the source that provides the capability to ascribe to each "hit" detected by any of the ~5120 Digital Optical Modules (DOM a time-stamp common to the entire IceCube = InIce + IceTop array. This common timestamp shall be referred to as IceCube Time Calibration (ITC). The creation of the ITC requires a complex sequence of information capture at both DOM and...

Dissolved organic matter (DOM) is an important factor in aquatic ecosystems, which is involved in a large variety of biogeochemical and ecological processes, and recent literature suggests that it could be strongly affected by agriculture in different climates. Based on novel monitoring techniques, we investigated the interaction of climate and agriculture effects on DOM quantity and quality. T...

Although many drugs act by indirectly stimulating multiple receptors (e.g., reuptake inhibitors), relatively little is known about interactions between agonism at different receptors. This study compared the effect of serotonin (5-HT)(1A) receptor agonists with the discriminative stimulus effects of the 5-HT(2A) receptor agonist 1-(2,5-dimethoxy-4-methylphenyl)-2-aminopropane (DOM) in rats and ...