A collection of 20 strains of Helicobacter pylori from several regions of the world was studied to better understand the population genetic structure and diversity of this species. Sequences of fragments from seven housekeeping genes (atpA, efp, mutY, ppa, trpC, ureI, yphC ) and two virulence-associated genes (cagA, vacA) showed high levels of synonymous sequence variation (mean percentage Ks o...

BACKGROUND African Americans suffer disproportionately from tobacco-related illness and have more difficulty quitting smoking than other racial/ethnic groups. Previous research indicates that African American treatment-seekers are high utilizers of tobacco quitlines, yet cessation rates via quitlines are lower relative to whites. The goal of the present study is to test the effectiveness of add...

We report 6 children who showed clinical symptoms and laboratory signs of acute pyelonephritis but in whom bacteriuria was insignificant, with Escherichia coli 10(4)/ml, or less. None of the children had symptoms of other disease. Three of the children who were at first treated inadequately or were not treated with antibiotics developed significant bacteriuria later on (10(5)/ml, or greater). U...

BACKGROUND/AIMS Frank agrammatism, defined as the omission and/or substitution of grammatical morphemes with associated grammatical errors, is variably reported in patients with nonfluent variant primary progressive aphasia (nfPPA). This study addressed whether frank agrammatism is typical in agrammatic nfPPA patients when this feature is not required for diagnosis. METHOD We assessed grammat...

BACKGROUND The increasing prevalence of cardiometabolic disease (CMD) in combination with an ageing population is a major public health problem. Early detection and management of individuals at risk for CMD is required to prevent future health problems with associated costs. General practice is the optimal health care setting to accomplish this goal. Prevention programs for identification and t...

The effects of fluid loading on RV function were studied in 41 acutely ill patients monitored with a modified pulmonary artery catheter equipped for measuring RVef. Hemodynamic evaluation was performed before and after infusion of 300 ml of 4.5 percent albumin solution in 30 min. Changes in SI did not correlate with Pra or Ppao but did with RVEDVI. For the entire group, RVef was unchanged (27 +...

OBJECTIVE We sought to compare the efficacy, safety, and cost of intraoral drainage (IOD) of parapharyngeal abscesses (PPAs) in the pediatric population with those of the more commonly used external neck drainage (END). PATIENTS AND STUDY DESIGN AND SETTING: An 11-year retrospective review was conducted of all patients admitted to a tertiary-care, university-affiliated, pediatric hospital with ...

2 Summary The arousal-biased competition (ABC) model predicts that arousal increases the gain on neural competition between stimuli representations. Thus, the model predicts that arousal simultaneously enhances processing of salient stimuli and impairs processing of relatively less-salient stimuli. We tested this model with a simple dot-probe task. On each trial, participants were simultaneousl...

The enantiomeric and diastereomeric profiling of chiral pharmaceuticals (ephedrine, norephedrine, atenolol and venlafaxine) and illicit drugs (amphetamine, methamphetamine, 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxy-N-methylamphetamine (MDMA) and 3,4-methylenedioxy-N-ethylamphetamine (MDEA)) was undertaken over a period of fourteen consecutive days in three wastewater treatment pla...

It is a commonly held belief that a consistent dimensional reduction ansatz can be equally well substituted into either the higher-dimensional equations of motion or the higherdimensional action, and that the resulting lower-dimensional theories will be the same. This is certainly true for Kaluza-Klein circle reductions and for DeWitt group-manifold reductions, where group-invariance arguments ...