eight sites were sampled during seven rain events to quantify and identify the sources ofpolycyclic aromatic hydrocarbons in urban runoff in the city of tijuana, mexico. the total σ16 pahsconcentration rangedfrom 1113 to 4866 μg/lin the sampled sites and thetotal suspended solid concentrations ranged from 7725 to 4413 μg/l. the high concentrations of total suspended solids were probably the res...

OBJECTIVE We wanted to compare the imaging features of renal cell carcinoma (RCC) and their diagnostic accuracy on agent detection imaging (ADI) and grayscale ultrasonography (US). MATERIALS AND METHODS Thirty non-consecutive patients (age range; 32-80 years, mean age; 53.7 years) with 30 RCCs were examined with gray-scale US and with ADI in conjunction with using SH U 508A. We described the ...

The use of BNP as a diagnostic and therapeutic tool in the management of heart failure is promising. Additional studies need to be done regarding the use of BNP as a diagnostic tool to clarify its intrapatient and interpatient variability, especially over time. Nesiritide is the first new intravenous agent for the treatment of acute decompensated heart failure since the introduction of milrinon...

During outbreaks of infectious diseases or in cases of severely ill patients, it is imperative to identify the causative agent. This report describes several events in which virus isolation and identification by electron microscopy were critical to initial recognition of the etiologic agent, which was further analyzed by additional laboratory diagnostic assays. Examples include severe acute res...

CONTEXT To determining suitable nucleic acid diagnostics for individual viral hepatitis agent, an extensive search using related keywords was done in major medical library and data were collected, categorized, and summarized in different sections. RESULTS Various types of molecular biology tools can be used to detect and quantify viral genomic elements and analyze the sequences. These molecul...

On the Semantic Web personalization technologies are needed to deal with user diversity. Our research aims at maximising the automation of acquisition of user knowledge, thus providing an effective solution for multi-faceted user modeling. This paper presents an approach to eliciting a user’s conceptualization by engaging in an ontology-driven dialog. This is implemented as an OWL-based domain-...

Drug induced vasculitis is a potentially life and limb threatening complication which can be precipitated by intake of virtually any pharmaceutical agent. It is a diagnosis of exclusion as definitive diagnostic and laboratory criteria have not been defined. Withdrawal of the offending agent is the definitive therapy but use of antithrombotic, vasodilatory and anti-inflammatory agents has been p...

Magnetic resonance cholangiopancreatography (MRCP) is an emerging non-invasive technique for direct visualization and evaluation of the biliary and pancreatic duct [l-3]. Signals from the regional gastrointestinal tract may obscure the bile ducts and degrade the diagnostic efficacy of MRCP. A mixture of barium sulfate and gastric antacid has been proved as a low cost, well tolerated, and effect...

Herpes simplex virus (HSV) is generally the most common agent isolated by viral diagnostic laboratories. At The Children's Hospital Viral Diagnostic Laboratory, HSV represents nearly 40o of all viruses isolated. The ultimate goal for HSV diagnosis is to have a rapid, sensitive, reliable, simple, and inexpensive test that will provide clinically useful results. Immunoperoxidase and peroxidase-an...

Community acquired pneumonia (CAP) is a common medical problem. Over 1.5 million patients annually will be diagnosed with CAP and treated with empiric therapy initially. The vast majority of patients will improve with a single course broad spectrum antimicrobial agent. Rarely a patient will not improve and some may progress on this regimen. Giving a second course of broad spectrum antimicrobial...