Very strong organic acids (acid groups ionized at pH 3.0) represent a significant portion of the total acidity (4--25%) in samples of organic matter isolated from two lakes, a landfill leachate, and a Krafft mill effluent. On the basis of model compound behavior and established complexation constants, these very strongly acidic groups are predicted to be the key to the formation of strong surfa...

OBJECTIVES To assess the safety and efficacy of antibiotics treatment for suspected acute uncomplicated appendicitis and to monitor the long term follow-up of non-operated patients. BACKGROUND Right lower quadrant abdominal pain is a common cause of emergency department admission. The natural history of acute appendicitis nonoperatively treated with antibiotics remains unclear. METHODS In 2...

The response of the dispersion nanostructure of surface river bed sediment to the controlled removal and readdition of natural organic matter (NOM), in the absence and presence of background electrolyte, was examined using the technique of small-angle neutron scattering (SANS). Partial NOM removal induced aggregation of the mineral particles, but more extensive NOM removal restored colloidal st...

by Yingping Huang This thesis examines the application of infrastructure, query optimization, data warehousing and data mining technologies to the area of scientific simulation. One application of scientific simulation is on the behavior of natural organic matter (NOM). NOM is a heterogeneous mixture of organic molecules found in terrestrial and aquatic environment from forest soils and streams...

Natural organic matter (NOM) represents a complex molecular system that cannot be fully characterized compositionally or structurally in full atomistic detail. This makes the application of molecular modeling approaches very difficult and significantly hinders quantitative investigation of NOM properties and behavior by these otherwise very efficient computational techniques. Here we report and...

The influence of three effluent organic matter (EfOM) model compounds (alginic acid, peptone and natural organic matter-NOM) and alkalinity on the ozonation of cyclophosphamide (CPD) was investigated. The rate of ozone decay increased with increasing model compounds concentration in the order of peptone > NOM > alginic acid. Increasing alkalinity inhibited ozone decay at all concentrations of a...

BACKGROUND Nonoperative management (NOM) of liver trauma is currently rather the rule than the exception. However, the current evidence presents subgroups of patients at higher risk for NOM failure. These patients must be treated more cautiously regarding the NOM approach. METHOD A case report of 3 polytrauma patients (Injury Severity Score > 17) with high-degree liver trauma managed nonopera...

The effect of zinc on the biological reduction of hematite (alpha-Fe2O3) by the dissimilatory metal-reducing bacterium (DMRB) Shewanella putrefaciens CN32 was studied in the presence of four natural organic materials (NOMs). Experiments were performed under non-growth conditions with H2 as the electron donor and zinc inhibition was quantified as the decrease in the 5 d extent of hematite biored...

INTRODUCTION Non-operative management (NOM) is now the primary treatment for blunt splenic injuries in children. Only one study has examined the use of NOM in a Scandinavian population. Thus, the purpose of this study is to report our experience in treating children with blunt splenic injuries with NOM at a Danish university hospital. METHODS We conducted a retrospective observational study o...

The verb in the fist clause of each of the examples above assigns accusative case (ACC) to the raised noun phrase. The verb in the second clause assigns nominative case (NOM) to the raised noun phrase. When the RNRed noun is not syncretic for the two cases assigned (ACC and NOM), as in (1), the construction is ungrammatical. On the other hand, when the raised noun is syncretic for NOM and ACC, ...